Patent Publication Number: US-11650671-B1

Title: Information handling system keyboard with rapid assembly and disassembly to aid recycling

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is related to the application entitled “Camera Sensor and Lens Housing Structure for Enhanced Manufacture Assembly and Repair,” naming Peng Lip Goh and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,367, which application is incorporated herein by reference. 
     This application is related to the application entitled “Information Handling System Display Rapid Panel Assembly and Repair,” naming Peng Lip Goh and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,369, which application is incorporated herein by reference. 
     This application is related to the application entitled “Camera Housing Structure for Enhanced Manufacture Assembly and Repair,” naming Peng Lip Goh and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,373, which application is incorporated herein by reference. 
     This application is related to the application entitled “Information Handling System Mouse with Rapid Assembly and Disassembly to Aid Recycling,” naming Peng Lip Goh and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,378, which application is incorporated herein by reference. 
     This application is related to the application entitled “Information Handling System Keyboard with Rapid Assembly and Disassembly to Aid Recycling,” naming Peng Lip Goh, Weijong Sheu, and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,384, which application is incorporated herein by reference. 
     This application is related to the application entitled “Information Handling System Keyboard with Rapid Assembly and Disassembly to Aid Recycling,” naming Peng Lip Goh, Weijong Sheu, and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,389, which application is incorporated herein by reference. 
     This application is related to the application entitled “Information Handling System and Peripheral Printed Circuit Board Having Non-Homogeneous Substrate Material,” naming Peng Lip Goh and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,395, which application is incorporated herein by reference. 
     This application is related to the application entitled “Information Handling System Coupling Device for Improved Assembly, Disassembly and Repair,” naming Peng Lip Goh, Weijong Sheu, and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,428, which application is incorporated herein by reference. 
     This application is related to the application entitled “Information Handling System and Peripheral Printed Circuit Board Having Non-Homogeneous Substrate Material and Integrated Thermal Solution,” naming Peng Lip Goh and Deeder M. Aurongzeb as inventors, filed Oct. 18, 2022, application Ser. No. 17/968,438, which application is incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates in general to the field of information handling system keyboards, and more particularly to an information handling system keyboard with rapid disassembly to aid recycling. 
     Description of the Related Art 
     As the value and use of information continues to increase, individuals and businesses seek additional ways to process and store information. One option available to users is information handling systems. An information handling system generally processes, compiles, stores, and/or communicates information or data for business, personal, or other purposes thereby allowing users to take advantage of the value of the information. Because technology and information handling needs and requirements vary between different users or applications, information handling systems may also vary regarding what information is handled, how the information is handled, how much information is processed, stored, or communicated, and how quickly and efficiently the information may be processed, stored, or communicated. The variations in information handling systems allow for information handling systems to be general or configured for a specific user or specific use such as financial transaction processing, airline reservations, enterprise data storage, or global communications. In addition, information handling systems may include a variety of hardware and software components that may be configured to process, store, and communicate information and may include one or more computer systems, data storage systems, and networking systems. 
     Generally, information handling systems process information with processing components disposed in a housing. End users interact with stationary information handling systems, such as desktop and tower configurations, through peripheral input/output (I/O) devices, such a peripheral display, peripheral keyboard, peripheral mouse and peripheral camera. Typically, stationary information handling systems ship with basic mouse and keyboard devices, although many end users often purchase other I/O devices with preferred configurations, such as varied shapes of keyboard key layouts, varied shapes of mouse outer surfaces and varied display panel image presentation dimensions. Portable information handling systems generally integrate I/O devices within a portable housing, such as display panel integrated in a portable housing lid portion that rotates relative to keyboard integrated in a portable housing main portion. Portable information handling system clamshell configurations rotate from a closed position that provides convenient storage to an open position that holds the display in the lid housing portion raised for viewing over the keyboard in the main housing portion. In addition, portable information handling systems can interface with peripheral devices to offer larger and more convenient input devices and display screen sizes. 
     A typical information handling system is built from a number of different components that are typically assembled with a multitude of screws and adhesives. For instance, a typical clamshell type portable information handling system has formed main housing with a number of screw sockets to which the motherboard, the cooling fan, the solid state storage device and the battery are secured. A keyboard is then coupled to a cover housing portion that fits over the main housing portion, with both the keyboard and the cover housing portion secured by screws. In some instances, if a keyboard integrated in a portable housing fails, nearly the entire housing is disassembled to replace the keyboard. Performing such a repair can involve a substantial amount of time just removing, saving, sorting and reinserting the screws that hold the housing together. A similar approach is also typically followed in the assembly of a display panel integrated in a lid housing portion. For instance, the display panel is often secured by screws and adhesives and then covered at the perimeter by a bezel or similar component. 
     One difficulty with conventional information handling system assembly is that the complexity of the assembled system makes repair, reuse and recycling of system components difficult and time consuming. Often, the manual labor involved in separating the components exceeds the economic benefit of repair, reuse and recycling so that the entire system is dispatched to waste. In fact, in many instances a good amount of an information handling system includes recyclable plastics and metals, however, the component assembly makes separation of these recyclable portions cost prohibitive. For example, a typical housing might have a metal outer form with injection molded plastic structures coupled by screws so that the housing on a component level cannot efficiently be recycled as either metal or plastic material. 
     Similar difficulties arise with a number of peripheral devices that assemble components using screws and adhesives. As an example, a peripheral keyboard typically has a keyboard module with a membrane adhered to an internal structure and biasing device, such as a rubber dome layer. Over time, the exterior of the keyboard can wear with use to have an unsightly appearance, however, the internal components including the membrane tend to have remaining useable life. When the keyboard is difficult to breakdown to reusable components, such as the membrane and the printed circuit board within the keyboard, end users will often discard the entire keyboard even though components within the keyboard have remaining usable life. As another example, a peripheral mouse typically includes a printed circuit board within a housing that detects movement of the mouse across a support surface and communicates the movement by USB wired or BLUETOOTH wireless interfaces. The components of the mouse tend to have a substantial usable life that is not fully exploited because disassembly of the mouse to reuse and recycle the components is not cost effective when the mouse is assembled using screws and adhesives. Another example is peripheral cameras, which tend to build an image sensor and support infrastructure in a single housing secured by screws and adhesives. Repair of an integrated assembly is difficult since a technician has to determine what part has failed and then separate the failed part to assemble a replacement part. 
     One improvement for recycling of information handling systems involves the use of bio-based printed circuit board substrates. Some available bio-based printed circuit board substrates are fully biodegradable, which helps to manage landfill waste when an information handling system or peripheral is discarded. In contrast, conventional prepreg substrates do not degrade, resulting in long term disposal difficulties. Unfortunately, bio-based printed circuit board substrates have not achieved acceptance due to less-favorable electric characteristics that can affect high signaling speed communications. Further, the bio-based printed circuit board substrates tend to have a less robust structure that can not withstand the types of impacts that conventional prepreg substrates can handle. 
     SUMMARY OF THE INVENTION 
     Therefore, a need has arisen for a system and method which improves repair, reuse and recycling of information handling systems and peripherals. 
     In accordance with the present invention, a system and method are provided which substantially reduce the disadvantages and problems associated with previous methods and systems to assemble information handling systems and peripherals to aid repair, reuse and recycling. Major components of the information handling system and peripherals organize as homogeneous recyclable modules of common materials and functions and assemble without the use of screws and adhesives. At end of life or in response to a system failure, the major components break down with essentially toolless disassembly for ready repair, replacement, reuse and/or recycling. 
     More specifically, an information handling system is built in a housing having an extruded aluminum main housing portion that contains a keyboard, touchpad and processing components, and having an extruded aluminum lid housing portion with an open face through which a display panel presents visual images. The aluminum extrusion produces an elongated tube form with openings at each end that are closed with a cover after assembly of the components within the housing portion. A main housing tray supports a keyboard and touchpad at an upper surface and couples a motherboard and thermal module at a lower surface. Once the keyboard, touchpad, motherboard and thermal module are coupled in place, the tray slides into the housing and is held in place by a coupling device that inserts through an opening of the housing and through an opening of the tray to couple with a hinge. The lid housing portion couples to the hinge to rotate between open and closed positions. Various peripheral devices include similar modular approaches. For example, a peripheral display couples a display panel to a stand with magnets and interface contactless connectors so that the display panel pulls off the stand to separate. Peripheral keyboards include one with an extruded aluminum housing that accepts a keyboard module on a tray that slides into an opening of the housing, and an alternative that layers keyboard components and couples the layers into an assembly with extruded aluminum rails slid onto each side of the keyboard. A peripheral mouse captures a printed circuit board between upper and lower housing portions that couple together with a single central lock. Peripheral cameras include a rectangular plastic housing held together with a planar spring lock, and a cylindrical aluminum extrude housing that divides into a rear portion with supporting components and a front portion with visual sensor components. In each embodiment, a bio-based printed circuit board substrate integrated with a prepreg substrate can be used. 
     The present invention provides a number of important technical advantages. One example of an important technical advantage is that an information handling system and peripherals have a modular construction with components that align with repair, reuse and recycling processes for material and component types. Modular assembly without the use of screws and adhesives simplifies disassembly of components in a logical manner associated with function and/or material type. The result is a more simple and less expensive breakdown of the information handling system and peripherals so that repair, reuse and recycling become a more economically feasible option. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention may be better understood, and its numerous objects, features and advantages made apparent to those skilled in the art by referencing the accompanying drawings. The use of the same reference number throughout the several figures designates a like or similar element. 
         FIG.  1    depicts a front perspective view of a portable information handling system  10  manufactured to enhance recyclability; 
         FIG.  2    depicts an exploded perspective view of an example embodiment of an information handling system having a modular assembly that enhances efficient disassembly and recycling; 
         FIGS.  3 A- 3 I  depict assembly of the information handling system main housing portion components without the use of any screws or adhesives; 
         FIGS.  4  and  4 A- 4 I  depict assembly of the information handling system lid housing portion components without the use of any screws or adhesives; 
         FIGS.  5 , and  5 A- 5 C  depict an exploded view of a peripheral display that illustrates an example arrangement of display components that provide more efficient assembly for manufacture and disassembly for recycling; 
         FIG.  6    depicts an exploded view of the peripheral display to illustrate an example with a cable visual image interface and magnets arranged at inner and outer circumferences to couple display panel to stand; 
         FIGS.  7  and  7 A through  7 I  depict detailed views of magnet installation in the peripheral display; 
         FIG.  8    depicts a front perspective view of a wireless keyboard having components assembled without screws and adhesive to simplify manufacture and enhance recyclability; 
         FIG.  9    depicts exploded front upper perspective view of the wireless keyboard having components assembled without screws or adhesives; 
         FIG.  10    depicts an exploded front bottom perspective view of the wireless keyboard having components assembled without screws or adhesives; 
         FIGS.  11 A through  11 E  depict an example of assembly of the wireless keyboard; 
         FIG.  12    depicts an alternative embodiment of a keyboard having components assembled without the use of screws and adhesives; 
         FIG.  13    depicts a front perspective exploded view of a keyboard having components assembled without the use of screws or adhesives; 
         FIGS.  14 A through  14 I  depict an example of assembly of the alternative keyboard embodiment; 
         FIG.  15    depicts an example embodiment of a mouse that assembles from components without the use of screw and adhesives; 
         FIGS.  16  and  16 A  depict upper and lower perspective exploded views of the mouse to illustrate assembly of the mouse components without screws or adhesives; 
         FIGS.  17 A through  17 E  depict assembly of the mouse without the use of screws or adhesives; 
         FIG.  18    depicts a cross-sectional view of an example of a printed circuit board having a hybrid of conventional and bio-based materials to enhance recycling and reuse of the printed circuit board; 
         FIGS.  19  and  19 A , exploded front and rear perspective views of a web camera are depicted that assembles from components without the use of screw and adhesives; 
         FIGS.  20  and  20 A -C depict assembly and disassembly of the web camera by interaction with a planar spring lock; 
         FIGS.  21  and  21 A through  21 C , an example of a camera is depicted that breaks a housing into separate sections to enhance camera repair, reuse and recycling; 
         FIGS.  22  and  22 A through  22 C  depicts an example of assembly and disassembly of a rear housing portion having camera processing resource and communications; and 
         FIGS.  23  and  23 A through  23 B  depict an example camera having assembly and disassembly of a front housing portion having camera visual image sensor resources. 
     
    
    
     DETAILED DESCRIPTION 
     An information handling system and peripherals, such a keyboard, mouse and display, are manufactured for ease of disassembly by limiting or eliminating the use of screws and adhesives while using materials adapted for recycling, such as aluminum and plastics. For purposes of this disclosure, an information handling system may include any instrumentality or aggregate of instrumentalities operable to compute, classify, process, transmit, receive, retrieve, originate, switch, store, display, manifest, detect, record, reproduce, handle, or utilize any form of information, intelligence, or data for business, scientific, control, or other purposes. For example, an information handling system may be a personal computer, a network storage device, or any other suitable device and may vary in size, shape, performance, functionality, and price. The information handling system may include random access memory (RAM), one or more processing resources such as a central processing unit (CPU) or hardware or software control logic, ROM, and/or other types of nonvolatile memory. Additional components of the information handling system may include one or more disk drives, one or more network ports for communicating with external devices as well as various input and output (I/O) devices, such as a keyboard, a mouse, and a video display. The information handling system may also include one or more buses operable to transmit communications between the various hardware components. 
     Referring now to  FIG.  1   , a front perspective view depicts a portable information handling system  10  manufactured to enhance recyclability. Generally, when information handling systems are assembled with screws and adhesives, the components of the information handling system do not readily break down into recyclable elements, such as single materials like plastic or aluminum, so that recycling is cost effective. To enhance recycling, portable information handling system  10  uses a combination of extruded, plastic and metallic parts assembled in some instances by magnets so that the system breaks down with minimal effort and into components that are cost effective for recycling. In the example embodiment, information handling system  10  has a clamshell configuration that opens to provide an end user with access to a keyboard  20  and touchpad  22  while viewing visual images at a display  18 . A housing  12  is built from a main housing portion  14  that rotationally couples to a lid housing portion  16  with hinges, as described below in greater detail. As an example of some features that improve recyclability, information handling system  10  has an extruded aluminum housing that assembles with plastic components without using screws and adhesives. The various components can either be reused or recycled with a disassembly process that breaks down the system in a rapid manner into reusable or recyclable components, such as based upon material type, typical system wear and proclivity for reuse. As an example, main housing portion  14  and lid housing portion  16  may be broken down, cleaned and reused, or alternatively, melted for material value. While the aluminum housing typically does not physically wear in a way that prevents reuse, the keyboard keys tend to break down over time. Thus, a reused aluminum housing might have the same keyboard subcomponents, like the same keyboard membrane, with a new set of keyboard keys. 
     Referring now to  FIG.  2   , an exploded perspective view depicts an example embodiment of an information handling system  10  having a modular assembly that enhances efficient disassembly and recycling. In the example embodiment, main housing portion  14  and lid housing portion  16  are assembled with internal modular components and then rotationally coupled by hinges  26 . Lid housing portion  16  is extruded aluminum formed to have an open face through with a display panel  18  is visible and a solid rear face that protects display panel  18 . Extrusion of aluminum through a mold leaves a top opening through which display panel  18  slides into place and a bottom opening adjacent main housing portion  14  through which a communication cable can be routed. A top opening cover  24  is extruded plastic or aluminum sized to fit into the top opening after display panel  18  slides into place, such as with plastic snaps that couple the top opening cover into the top opening. A display hinge cover  30  provides a bottom opening cover of extruded plastic or aluminum sized to fit into the bottom opening in cooperation with hinges  26 . When the top and bottom covers are coupled to the lid housing portion openings, the interior of the lid housing portion and display panel are protected from contaminates. Lid housing portion  16  assembles into a module that is then coupled by hinges  26  to the assembled main housing portion  14 . 
     Main housing portion  14  assembles as a module in a similar manner as lid housing portion  16  with components sized to slide into either a front or rear opening of an extruded aluminum body. In the example embodiment, the aluminum extrusion mold essentially forms an elongated tube with a front opening and a rear opening. Once the tube is extruded, key openings are cut in the housing upper surface through which keyboard keys of a keyboard module  20  can extend. In addition, a touchpad opening is cut in the upper surface through which a touchpad  22  is exposed to accept touch inputs. Keyboard module  20  slides into main housing portion  14  and is supported in part from below by an upper surface of a main housing tray  44  having a battery tray  46 . Main housing tray  44  and battery tray  46  are, for example, steel panels that provide rigid support under keyboard module  20  by engaging with the interior or main housing portion  14 . Main housing tray  44  accepts on its bottom surface a motherboard  36 , a thermal module  34  having cooling fans and a battery  48 . Motherboard  36  supports communication between processing components that cooperate to process information. For instance, a central processing unit (CPU)  38  executes instructions to process information in cooperation with a random access memory (RAM)  40  that stores the instructions and information. A solid state drive (SSD)  42  provides persistent storage of the instructions and information, such as an operating system and applications that are retrieved to RAM at system power up. When keyboard module  20 , main housing tray  44  and touchpad  22  slide into the interior of main housing portion  14  a front cover  50  fits into the front opening to protect against entry of contaminants and a rear cover  28  fits into the rear opening with a body hinge cover  32  providing an aesthetic assembly around the hinge coupling with the lid housing portion  16 . As is described in greater detail below, the assembly of the modules shown in  FIG.  2    is completed without any screws or adhesives applied to couple the components into the completed information handling system  10 . 
     Referring now to  FIGS.  3 A- 3 I , assembly of information handling system  10  and main housing portion  14  components are depicted without the use of any screws or adhesives.  FIG.  3 A  depicts main housing portion  14  in an upright orientation having a keyboard module  20  inserted through a rear opening and a touchpad module  22  inserted through a front opening, as indicated by arrows  54  and  52  of  FIG.  3 B .  FIG.  3 C  illustrates assembly of keyboard module  20  to extend keys through key openings in main housing portion  14  with an upward bias as indicated by arrow  58  provided from magnetic attraction, as detailed in  FIGS.  3 D,  3 H and  3 I . Similarly, touchpad  22  is biased upward with magnetic attraction into the touchpad opening as indicated by arrow  56 .  FIG.  3 D  depicts one example embodiment of an arrangement of magnets  60  to bias keyboard module  20  and touchpad  22  into place. A pair of central magnets  60  are placed towards the front of main housing portion  14  where touchpad  22  aligns, and a second pair of outer magnets  60  are placed towards the rear of main housing portion  14  where keyboard module  20  aligns. Keyboard module  20  and touchpad  22  each include some ferromagnetic material, such as steel, that attracts to magnets  60  so that keyboard module  20  and touchpad  22  are held in position for subsequent assembly steps that secure the keyboard module and touchpad with sufficient robustness to accept end user presses. 
       FIG.  3 E  depicts a bottom exploded view with the alignment of main housing components for assembly into main housing  14  after the keyboard module and touchpad are in position. A thermal module  34  having one or more cooling fans and motherboard  36  couple to a bottom side of main housing tray  44  so that the thermal module aligns to remove excess thermal energy from motherboard processing components, such as the CPU. A battery  48  couples to a battery tray  46  portion of main housing tray  44 . A display cable  62  extends from mother board  36  to communicate visual image information from motherboard  36  to the display panel as described below.  FIG.  3 F  depicts assembly of thermal module  34  and motherboard  36  along the axis of arrow  66  into rails defined by main housing tray  44 , such as by engaging a snap feature that holds the thermal module and motherboard in place. Battery  48  presses downward as indicated by arrow  64  to engage with the battery tray  46  of main housing tray  44 . The assembly of these components outside of main housing portion  14  provides adequate room for rapid assembly and is preformed without any screws or adhesives. At recycling, disassembly is performed with opposite steps and without having to free the components from coupling by screws or adhesives.  FIG.  3 G  depicts insertion of the main housing tray subassembly along an axis indicated by arrow  68  from the rear of main housing portion  14 . Main housing tray  44  is sized to fit into the interior of main housing portion  14  with alignment and placement aided by magnets  60  and, in some instances, structures defined within the interior of main housing portion  14 . The surface of main housing tray  44  opposite motherboard  36  provides support for the keyboard module and touchpad to accept end user press inputs.  FIG.  3 H  depicts a sectional view of main housing portion  14  with main housing tray  44  inserted and having features at the location of magnets  60  that define alignment within the housing interior.  FIG.  3 I  depicts a sectional view of main housing portion  14  with main housing tray  44  having features that define a fully inserted position relative to magnets  66 . The example feature of  FIG.  3 H  aligns magnet  60  with a recess in touchpad  22  and the battery tray  46  of main housing tray  44  so that the touchpad has adequate underlying support. The example feature of  FIG.  3 I  aligns the outer magnets  60  with a beveled end feature of main housing tray  44  so that the main housing tray is leveraged into place and also supportive under keyboard module  20 . Disassembly is performed by pulling out main housing tray  44  over the magnetic attraction and then removing the components as described above. No screws or adhesives are used to assemble the main housing portion, which improves the efficiency of breaking down and recycling the system and its components. 
     Referring now to  FIGS.  4  and  4 A- 4 I , assembly of the information handling system lid housing portion components without the use of any screws or adhesives is depicted.  FIG.  4    depicts an upper perspective view of main housing portion  14  with the internal components assembled and having two hinges  26  inserted into the rear side as indicated by arrows  70  to align with an opening formed in main housing portion  14  and through the main housing tray. Display cable  62  extends out of main housing  14  aligned to couple with a display of lid housing portion  16 .  FIG.  4 A  depicts a detail view of hinge  26  having first and second brackets  74  rotating about an axle  72 . Each bracket  74  has an opening that accepts a coupling device, which serves to both couple the hinge to the housing and also to secure the main housing tray in position within the main housing interior.  FIG.  4 B  depicts a perspective detail view of a coupling device  76  aligned to insert into an opening  84  of main housing portion  14  that couples hinge  26  in place and also couples through the main housing tray to lock it in place. The coupling device of the example embodiment has three magnetic elements having an I-shape along an insertion axis. Outer coupling device elements  78  and  82  have an arc outer surface to fit within the circular opening  84  and a lip at an upper and lower side that fits in a recess formed in opening  84 . Opening  84  has an I-shape or keyhole portion with a greater circumference so that central element  80  fits into opening  84  after elements  78  and  82  are inserted.  FIG.  4 C  depicts a cross-sectional view of coupling device  76  inserted into opening  84  of main housing portion  14  and through hinge  26  and main housing tray  44  to hold the information handling system assembly together. In the example embodiment, magnetic attraction is applied to assemble the coupling device: outer elements  82  and  78  have north poles at an upper side and south poles at a lower side, while middle element  80  has a south pole at an upper side and a north pole at a lower side. This magnet pole arrangement holds the coupling device together and also aids in assembly, as is detailed below. In alternative embodiments, one or two of the elements may be steel or other ferromagnetic material instead of using magnets for all three elements. 
       FIGS.  4 D through  4 G  illustrate assembly of the coupling device  76  that leverages magnetic pole orientation of the coupling device elements. In  FIG.  4 D , the first coupling device element  78  is inserted as indicated by arrow  86  at the keyhole of increased diameter of opening  84  and slid to the side so that the upper I-shape lip of element  78  fits into the recess of main housing  14 . In the example embodiment, element  78  is held in place in part by magnetic attraction to the steel of the main housing tray. In alternative embodiments element  78  may be a non-magnet ferromagnetic material or a magnet with a smaller level of magnetic attraction than the central element  80 .  FIG.  4 E  depicts insertion of element  78  along the axis indicated by arrow  88  so that the lip of the I-shape fits in the recess defined in the main housing portion that prevents vertical movement of element  78 .  FIG.  4 F  depicts insertion of the opposing outer element  82  in opening  84  along the increased circumference of the keyhole as indicated by arrow  90 . Once the second element  82  inserts fully into the opening so that the I-shape lip and fit into the recess of main housing portion  14 , the opposing magnetic force caused by alignment of like poles slides element  82  as indicated by arrow  92  under the lip of the main housing portion. The opposing magnetic force spaces elements  78  and  82  apart from each other to provide for insertion of the middle element  80  as indicated by arrow  94  of  FIG.  4 G . The I-shape portion of middle element  80  fits into the larger circumference of the keyhole of opening  84  and magnetically couples with outer elements  78  and  82 . In the upper view of the assembled coupling device depicted by  FIG.  4 G , alignment forms are depicted having a bulge on each side of middle element  80  and a recess in each of outer elements  78  and  82  to guide the insertion of the middle element. As the middle element inserts all three poles of the three magnets are alike so that repelling magnetic forces will aid with the insertion of the middle element. Once the middle element  80  fully inserts, the opposite magnetic pole alignments will work to hold the coupling device in place. Disassembly is accomplished by applying a sufficient force to press out the middle element so that the outside elements can be removed. 
     Once the main housing is assembled with hinge  26  extending out the rear side, the lid housing portion  16  and display panel  18  are assembled as depicted by  FIG.  4 H . Display panel  18  inserts into the bottom opening of lid housing portion  16  and is guided to position by the sides of the extruded housing. After insertion of display panel  18 , a coupling device is inserted through lid housing portion  16  as described above to couple with the hinge  26  and hold display panel  18  in position. Once the lid housing portion couples to the hinges, the information handling system assembly is completed as shown by  FIG.  4 I  by closing the ends of the main and lid housing portions. A lid housing portion top cover  24  inserts into the top opening of lid housing portion  16 , a rear cover  28  inserts into a rear opening of main housing portion  14 , and a front cover  50  inserts into the front opening of main housing portion  14 . The top, rear and front covers may snap into position and couple to internal structures, such as the main housing tray and the display panel, such as to provide additional support to the main housing tray position. Once the top, rear and front covers couple into position, hinge covers  30  and  32  close the bottom side of lid housing portion  16  and provide room for rotation of the lid and main housing portions relative to each other about hinges  26 . Disassembly of the information handling system is performed by removing the covers and reversing the assembly process. Since no screws or adhesives are used for the assembly of the components, disassembly can be performed in a rapid manner to yield components for reuse and recycling in a logical and preplanned manner. In the example embodiments, the top and bottom of the I-shape of the assembled coupling device substantially align with the housing upper and lower surface to provide a planar appearance. In alternative embodiments, protrusions other than the I-shape may be used to hold the coupling device in place, such a single protrusion that fits into a single recess of the opening, rather than the upper and lower recess shown in the example embodiment that accept the I-shaped form of the assembled coupling device. 
     Referring now to  FIGS.  5 ,  5 A and  5 B , an exploded view of a peripheral display illustrates an example arrangement of display components that provide more efficient assembly for manufacture and disassembly for recycling. To achieve simplified assembly and disassembly, a display panel  102  couples to a peripheral display frame with magnetic attachment and communicates with a scalar board to present visual images through a wireless contactless connector. The modular design assembles the components without adhesives and screws so that disassembly, repair and recycling is simpler and more cost effective. In the example embodiment of  FIG.  5   , peripheral display  100  holds a display panel  102  in a viewing position with a stand  104  and a frame  106 . Display panel  102  aligns with frame  106  and couples into place over a scalar board  108  that receives and processes visual information from an information handling system to scan as pixel values to display panel  102 .  FIG.  5 A  depicts a detail view of scalar board  108 , which has a set of pogo pins  110  with spring-loaded contact points that bias out from scalar board  108  and a contactless connector  112  that provides communication from scalar board  108  to display panel  102 . For example, contactless connectors  112  are 60 GHz wireless radio transceivers, such as the MOLEX KSS104M and MSX60.  FIG.  5 B  depicts a rear exploded view of peripheral display  100  having a metal backplate  118  and a control board  114  that supports power and information communication with scalar board  108 .  FIG.  5 C  depicts a detailed view of control board  114  having contact pads  116  that interface with the pogo pins to exchange power and ground and a contactless connector  112  to communicate with the scalar board contactless connector. The pogo pins, contact pads and contactless connectors align to communicate power and visual image information when magnets disposed in frame  106  couple to metal backplate  118  to hold display panel  102  in position on display stand  104 , as described in greater detail below. 
     Referring now to  FIGS.  6   , an exploded view of peripheral display  100  illustrates an example with a cable visual image interface and magnets arranged at inner and outer circumferences to couple display panel  102  to stand  104 . In the example embodiment, display panel  102  perimeter aligns with display frame  106  and a cable  126  provides a communication interface between scalar board  108  and display panel  102 . A back cover  120  couples to the rear side of frame  106 , such as with magnet force or other attachment techniques. When peripheral display  100  fails, the failure is typically with one of the display panel or the scalar board/power system. Thus, to improve serviceability and recyclability, display panel  102  and display stand  104  are coupled by magnets  128 ,  130  and  132  disposed in display stand  104 . A first set of magnets  128  are disposed on metal cage  122  that is around the perimeter of scalar board  108 . A second set of magnets  130  are disposed along the bottom perimeter of frame  106 . A third set of magnets  132  are disposed along the sides and top perimeter of frame  106 . The arrangements of magnets provide a strong magnetic attraction force to the display panel steel rear side to hold display panel  102  in place, but allows disassembly of display panel  102  by prying the display panel away from the frame  124 . 
     Referring now to  FIGS.  7  and  7 A through  7 I , detailed views of magnet installation in peripheral display  100  are depicted. A first set of magnets  128  couple to a metal frame surrounding the scalar board and power board within the display stand.  FIG.  7 D  illustrates that magnet  128  inserts into a slot opening formed in the metal frame within a recess so that magnet  128  will couple in place in the same plane as the metal frame.  FIG.  7 E  depicts a rear rectangular member extending from the back side of magnet  128  through the slot of the metal frame.  FIG.  7 F  depicts a 90 degree rotation and downward sliding movement of magnet  128  to couple in place at the lower side of the frame. Magnets  130  disposed along the bottom side of the perimeter of the display frame have a circular shaped central opening and rest on an extension outward from the display frame.  FIG.  7 G  depicts insertion of a member at the back side of magnet  130  into a slot of the display frame.  FIG.  7 H  shows magnet  130  from behind the display frame with the member inserted in the slot.  FIG.  7 I  shows magnet  130  from behind with a rotation of 90 degrees to hold the member in place. Magnets  132  disposed along the sides and top of the frame have a circular shape and fit within a circular recess formed in the frame.  FIG.  7 A  depicts insertion of magnet  132  into a slot formed in the recess.  FIG.  7 B  depicts insertion of the member into the slot and  FIG.  7 C  depicts rotation of the magnet and member to couple magnet  132  to the frame. In some instances, when the display panel couples tightly to the display frame, rotation of the member and magnet to rotate the member in alignment with the slot can reduce the magnetic attraction to help remove the display panel by releasing the magnet to pull off from the display panel. 
     Referring now to  FIG.  8   , a front perspective view depicts a wireless keyboard  140  having components assembled without screws and adhesive to simplify manufacture and enhance recyclability. Wireless keyboard  140  is constructed in an aluminum extruded housing  142  that is extruded through a mold defining an elongated tube having a front and rear opening. Keys  146  of an underlying keyboard module extend out from housing  142  to accept end user inputs that are wirelessly communicated to an information handling system. A cover  148  couples to the front opening to protect the interior of housing  142 . A bottom cover  144  provides access to electronic components within housing  142 . The openings for bottom cover  144  and keys  146  may be die cut, laser cut, or otherwise cut out of the extrude housing. 
     Referring now to  FIG.  9   , an exploded front upper perspective view depicts the wireless keyboard  140  having components assembled without screws or adhesives. Keyboard module  140  extends keys  146  upward that are part of a conventional keyboard module having, for example, keys biased away from a membrane by a rubber dome. The keyboard module is supported by a plastic tray  156  that slides in extruded aluminum housing  142  and couples against front cover  148  to have a rigid support surface that accepts typed inputs. A sliding power button  154  accepts power switch inputs to turn the keyboard electronics on and off by translating sliding motion to a circuit board on the bottom of plastic tray  156 . A plastic LED light guide  152  directs LED illumination from the circuit board to the upper side of the keyboard. Plastic tray  156  has a cover on a rear side that couples into the rear opening of housing  142  when the tray slides into the housing from the rear side. Bottom cover  144  is a plastic material that covers electronic components coupled to the bottom side of plastic tray  156 . Rubberized feet  164  and  166  fit through openings in the bottom of housing  142  by snapping in place or, as is described below, coupled in place with C-clips that slide on and off. 
     Referring now to  FIG.  10   , an exploded front bottom perspective view depicts the wireless keyboard  140  having components assembled without screws or adhesives. A printed circuit board having components that support wireless communication couples to the bottom side of plastic tray  156  and is held in place by C-clips  160  in a location to engage with sliding power button  154  and light guide  152 . C-clips  160  and  162  are plastic to allow recycling of the assembled plastic parts and remove with a sliding motion so that removal of the components has minimal effort. A battery  158  clips on the bottom side of plastic tray  156  with C-clips. The keyboard module bottom side has extensions into plastic tray  156  that are coupled in place by C-clips. Plastic feet  166  and rubber covers  164  are formed as elongated C-clips that couple to opening cut in housing  142  and engage with front cover  148  to hold it in place. Rubber covers  164  may be double shot injected to form a single piece or separately coupled in place by a C-clip form. Front cover  148  has a ledge that inserts inwards and under plastic tray  156  to support plastic tray  156  from below against keyboard press inputs. 
     Referring now to  FIGS.  11 A through  11 E , an example of assembly of the wireless keyboard  140  is depicted.  FIG.  11 A  depicts coupling a battery  158  to a bottom side of plastic tray  156 , such as with C-clips or plastic snaps integrated in the tray bottom side. Printed circuit board  150  couples to plastic tray  156 , such as with C-clips, and engages with power switch  154 .  FIG.  11 B  depicts a detailed view of plastic C-clips that couple printed circuit board  150  to a lowered ledge of plastic tray  156 . The C-clips have a lip on each of the opposing inner walls to engage with a recess feature of the circuit board or lowered ledge.  FIG.  11 C  depicts the plastic tray  156  turned right side up so that the upper surface provides support to keyboard module  146  with an opening of plastic tray  156  arranged to pass through a cable of keyboard module  146 .  FIG.  11 D  depicts a bottom perspective view of plastic tray  156  with keyboard cable  170  coupled to the printed circuit board and plastic C-clips that pass into slots of keyboard module  146  to hold the keyboard module on the plastic tray upper surface. Once keyboard module  146  is coupled to plastic tray  156 , the assembled subunit is slid into the rear opening of housing  142  until the rear cover couples into and closes the rear opening, as depicted by  FIG.  11 E . The keyboard assembly completes by coupling the front cover to the keyboard housing as shown in  FIG.  8   . 
     Referring now to  FIG.  12   , an alternative embodiment of a keyboard  180  has components assembled without the use of screws and adhesives. In the alternative example embodiment, a plastic housing  184  supports a keyboard module  182  with extruded aluminum rails  186  and  188  that fit into rail guides on all four sides and that are held in place by corner stopper caps  190 . As with the example embodiment of  FIG.  9   , keyboard  180  may be configured to communicate with an information handling system wirelessly or through a cable. The extruded aluminum rail is released by removing the corner stopper caps  190  so that the keyboard can be disassembled to recycle or reuse. The keyboard components are assembled without the use of screws or adhesives. 
     Referring now to  FIG.  13   , a front perspective exploded view depicts a keyboard  180  having components assembled without the use of screws or adhesives. A plastic molded housing  184  has openings to accept keys of a keyboard module  182  and has rail guides formed along all four sides that accept aluminum extruded front and rear rails  186  and side rails  188 . A plastic bottom cover  200  aligns with the openings of housing  184  to provide a support for membrane  194  that detects key touches and a rubber dome sheet  192  that provides an upward biasing mechanism for keys of keyboard module  182 . A printed circuit board  196  couples to the base of bottom cover  200  and interfaces with membrane  194  to receive and communication key inputs to an information handling system, such as with BLUETOOTH wireless signals or a USB wired interface. Feet  198  couple to the bottom cover to support the bottom cover over a support surface. Corner stopper caps  190  couple to each corner of keyboard  180  at the intersection of the rails to hold the rails in place. To break down the keyboard, such as for recycling or reuse, corner stopper caps  190  are removed to release the front, rear and side rails. Once the rails are removed, the keyboard physical layers pull apart. 
     Referring now to  FIGS.  14 A through  14 I , an example of assembly of the alternative keyboard embodiment is depicted.  FIG.  14 A  depicts plastic bottom cover  200  having a rubber foot  198  inserted at each corner. Printed circuit board  196  couples to the bottom cover  200 , such as with snaps or with C-clips. Alternatively, the printed circuit board is positioned by a structure of the bottom cover and held in place by compression at final assembly of the keyboard. In the example embodiment, printed circuit board  196  has a contact connector exposed on the upper side that interfaces with the membrane so that a cable is not needed.  FIG.  14 B  depicts the membrane  194  placed over the bottom cover  200  and aligned by structures extending upwards and through openings of membrane  194 .  FIG.  14 C  depicts a rubber dome sheet  192  placed over membrane  194  and having a rubber dome at the location of each keyboard key to bias the keyboard key away from the underlying membrane  194  that detects key presses. Once the subassembly for the bottom portion of the keyboard is assembled, an upper subassembly is built that couples over the bottom portion. The keyboard module  182 , which in this example is a set of plastic keycaps, is snapped in place over the housing  184 .  FIG.  14 D  depicts the upper assembly of keyboard membrane  182  and housing  184  placed over top of the bottom cover  200  with the assembled contact membrane and rubber dome membrane. 
     Once the keyboard upper and lower subassemblies are aligned, aluminum extruded rails  186  and  188  are slid into place to compress the layers slightly and hold the assembly together.  FIG.  14 E  depicts front and rear rails  186  slid as indicated by arrows  206  into guides at the front and rear sides of the assembly, and side rails  188  slid as indicated by arrows  208  into guides at the sides of the assembly.  FIG.  14 F  depicts a detail view of housing  184  and bottom cover  200  having a rail guide  202  and  204  respectively that each engage a common rail. Each rail couples over the upper guide  202  associated with the perimeter of housing  184  and the lower guide  204  associated with the perimeter of bottom cover  200  to hold the vertical assembly together without any adhesives or screws.  FIG.  14 G  depicts a cross-sectional view of a front rail  186  coupled to upper rail guide  202  and lower rail guide  204  at a corner location having a side rail  188  coupled to the side of the assembly. In the example embodiment, the rail is extruded to have a member that extends under a lip of each guide and that provides a slight compression of the keyboard assembly. When all four rails couple around the perimeter of the keyboard assembly, each corner has an open spot that could allow the rails to slide if not protected, as is illustrated by  FIG.  14 G .  FIG.  14 H  depicts a corner stopper cap  190  aligned to couple to the rail guides at each corner of the keyboard and hold the rails in place.  FIG.  14 I  shows an example of an inner snap feature that couples in place at the keyboard and is removed to provide disassembly of the keyboard. 
     Referring now to  FIG.  15   , an example embodiment of a mouse  210  is depicted that assembles from components without the use of screw and adhesives. Mouse  210  has a bottom housing  212  that moves over a support surface and a top housing  214  that couples over the bottom housing and provides the end user access to push buttons at an upper surface on both sides of a scroll wheel  216 . In the example embodiment, a cable  224  extends from bottom housing  212  to communicate mouse movements sensed by a position sensor to an information handling system interfaced with cable  224 , such as through a USB port. Mouse  210  includes components assembled within the a plastic housing in a manner that provides rapid disassembly that reduces the cost associated with component reuse and recycling, as is illustrated in greater detail below. 
     Referring now to  FIGS.  16  and  16 A , upper and lower perspective exploded views depict the mouse to illustrate assembly of the mouse components without screws or adhesives. Bottom housing  212  is injection molded to include structures that accept a plastic sensor lens  226  and a printed circuit board  222  having a position sensor and a processing resource to manage communication of inputs through cable  224 . A plastic scroll wheel  220  with a rubberized cover  218  provide the scroll wheel  220  that extends out of top housing  230  and rotates in response to an end user finger motion. The plastic scroll wheel  220  has an axle  216  extending from each side that engages with the processing components of printed circuit board  222 , which includes an optical or other type of sensor to detect scroll wheel rotation. A plastic top cover  230  couples over bottom housing  212  to enclose printed circuit board  222  in place. A central post extends from the plastic top cover  230  down into a recess and opening of bottom housing  212  and includes a side cam member extending from the inner circumference that engages with a central lock  228  to hold the mouse assembly together. For example, a cam member  232  extending from the outer circumference of central lock  228  rotationally engages the member extending from the inner circumference of plastic top cover  230  to compress the bottom and top housing portions together and hold the printed circuit board in place. A plastic key plate  214  snaps over top of top cover  230  with structures in a bottom surface and translates button push inputs through top cover  230  to buttons disposed in printed circuit board  222 . The components depicted in  FIGS.  16  and  16 A  assemble and disassemble with engagement and release of central lock  228  for ease of recycling and reuse without the use of any screws or adhesives. 
     Referring now to  FIGS.  17 A through  17 E , assembly of the mouse is depicted without the use of screws or adhesives.  FIG.  17 A  depicts printed circuit board  222  has scroll wheel  216  coupled in place and is then placed in bottom housing  212  over lens  226 , which is snapped into place in alignment with a position sensor at the bottom side of printed circuit board  222 . Structures of bottom housing  212  hold printed circuit board  222  and scroll wheel  216  in place.  FIG.  17 B  depicts top cover  230  aligned over bottom housing  212  to place the central post of the top cover into the opening of bottom housing where the central lock is inserted. Internal members extending down from top cover  230  engage with printed circuit board  222  to hold it in place when the central lock is rotated to a locked position to compress top cover  230  into bottom housing  212 .  FIG.  17 C  depicts a bottom view of bottom housing  212  with central lock  228  aligned to insert in the opening to couple with the top cover  230 . Marks on the bottom surface of the bottom housing show the rotational positions to which central lock  228  rotates to lock and release the mouse housing for assembly and disassembly.  FIG.  17 D  depicts a cross-sectional view of the top cover  230  where a cam extension  234  from the inner circumference of the top cover engages with a cam surface  232  of the outer circumference of central lock  228 . Once the central lock rotates to lock the cam surfaces relative to each other, the bottom housing and top cover compress towards each other to capture the printed circuit board and other internal components.  FIG.  17 E  depicts coupling of keyplate  214  over to top cover  230  to complete the assembly. At end of life, the mouse breaks down by removing the keyplate and central lock, then breaking the components down to like materials for recycling or selecting components for reuse. 
     Referring now to  FIG.  18   , a cross-sectional view depicts an example of a printed circuit board having a hybrid of conventional and bio-based materials to enhance recycling and reuse of the printed circuit board. In the example embodiment, dual assemblies of copper layers  252  and a bio-based substrate  250  are each separately built as printed circuit boards then sandwiched around a conventional prepreg (such a fiberglass laminate composite material) or similar layer  254  to manufacture a peripheral device printed circuit board that is used in a peripheral, such as the keyboards and mouse described above, the cameras described below and some subsystems of the information handling system described above as well as other types of systems. Generally, bio-based materials lack the stiffness and electrical properties to use in systems and peripherals that perform more complex processing tasks. For instance, poorer dielectric and insulating properties can make bio-based printed circuit boards a less favorable choice for devices that carry dense signal traffic. In many instances, bio-based circuit boards are sufficient to handle the processing and signaling associated with peripheral devices, such as a mouse position sensor or a mouse scroll wheel rotation sensor, or an interface with a keyboard membrane. Similarly, some information handling system functions include small circuit boards that do not have heavy processing and signaling demands that can operate with bio-based materials. Including bio-based materials in the printed circuit boards helps to improve recycling of the device by allow the board to be discarded where it can biodegrade. In addition, bio-based printed circuit boards avoid the use of fossil fuels so that a more sustainable product results. Generally, bioplastics of PLA, PHA, PBS and starch blends are biodegradable and built without fossil fuels; biobased PE, PET, PA and PTT do not biodegrade but offer an alternative to fossil fuel plastics. In one embodiment, at end of life, a hybrid board may be reused by melting the bio-based substrate off of the prepreg substrate so that the prepreg substrate can be reused. 
     In the example embodiment, printed circuit board  222  is, for example, a mouse or keyboard printed circuit board that has a central prepreg layer  254  sandwiched between biobased PLA GO substrates that make up about 20% of the total board thickness. A top layer  252  is a copper routing layer that has conductive pads to accept electronic components and a bottom layer  252  is a copper routing layer that also has conductive pads to support electronic components. For instance, these layers have components affixed with a pick and place or similar process and interface through the biobased substrate  250  to an underlying internal ground plane  252  on top of the prepreg layer  254  and an internal power plane layer  252  below the prepreg layer. The prepreg layer offers improved stiffness relative to the bio-based substrates  250  but does not biodegrade and is prepared with conventional fossil fuel materials. However, at product end of life when the printed circuit board is removed, the prepreg layer  254  may be separated from the bio-based layers and reused while the bio-based layers are recycled or discarded in an environmentally friendly manner. As an example, the prepreg layer may have both a ground plane and a power plane coupled to it so that the prepreg layer may be reused by removing the top and bottom routing layers and then attaching new top and bottom routing layers with bio-based substrates. This approach will work well where a peripheral device has a defined footprint, such as a mouse or keyboard printed circuit board. In some instances, the ground and power plane layers may be part of the bio-based substrate so that only the prepreg layer is reused. Alternatively, the printed circuit board may be reused by keeping one of the routing layers coupled to the prepreg layer along with both the ground and power planes; the other bio-based substrate and routing layer are then replaced. In some instances, the prepreg layer, ground plane and power plane may be reused in a context having a separate multi-layer bio-based interface added at one side to interface the top and bottom routing layers or to encapsulate the prepreg layer within bio-based substrate that provides a communication interface. 
     In some instances, bio-based substrates have a greater sensitivity to heat that can impact the life of a printed circuit board. The copper used in ground and power planes and help to spread thermal energy and transfer thermal energy to external the printed circuit board, however, the thermal energy can also transfer through vias to routing layers. In one embodiment, thermal energy at a hybrid printed circuit is managed by including one or more graphene layers within the printed circuit board, such a 70 micrometer layer or graphene paint having a thermal conductivity of 70 to 200 Wmk. The graphene layer tends to transport thermal energy along its plane without substantial transfer normal the plane of the graphene layer. Similarly, graphene tends to conduct electricity in plane and having a dielectric characteristic normal the plane. In one example embodiment, a first layer of graphene paint is disposed between the ground plane and the bio-based substrate and a second layer of graphene paint is disposed between prepreg substrate and the power plane. The graphene layers each transport thermal energy to the periphery of the printed circuit board where another structure can accept the thermal energy. In alternative embodiments a graphene layer may be disposed between each substrate layer or just between one or more selected of the substrate layers. For example, graphene may be applied between the bio-based substrate and the ground plane; and/or between the ground plane and the prepreg substrate; and/or between the prepreg substrate and the power plane; and/or between the power plane and the bio-based substrate. The selection of graphene layer placement may depend on a number of factors to include the thermal characteristics of the processing components of the board, the expected operating conditions of the printed circuit board and the thermal transfer characteristics of the copper elements of the printed circuit board. 
     Referring now to  FIGS.  19  and  19 A , exploded front and rear perspective views of a web camera  260  are depicted that assembles from components without the use of screw and adhesives. Camera  260  is assembled in an aluminum extruded housing  262  having front and rear openings that accept the internal components. An inner frame  268  is injection molded plastic to fit within extruded aluminum housing  262  and includes guide members extending out from each corner that engage with guides formed in housing  262  on the inner surface. Plastic inner frame  268  slides into the rear opening of housing  262  to have the guide members engaged with the guides to hold the inner frame laterally in position. A printed circuit board  270  has an image sensor  272  mounted at a front central location aligned to have a field of view through inner frame  268  front opening. A rear cover  274  includes plural members of different lengths extending inward to housing  262  to engage with printed circuit board  270  and inner frame  268 . A glass front cover  266  fits in housing  262  from the rear to abut against a stop formed in the housing front inner circumference. When the components are assembled, a planar spring lock  264  couples to housing  262  at an upper and lower side to hold the components in place and seal glass front cover  266  in place. To disassemble the components for recycling or reuse, the planar spring lock  264  is released, as is described below in greater detail, and the components slide out of housing  262 . 
     Referring now to  FIGS.  20  and  20 A -C, assembly and disassembly of the web camera by interaction with a planar spring lock is depicted.  FIG.  20    depicts a front perspective view of camera  260  in an assembled state having the planar spring lock  264  coupled to housing  262  and having image sensor  272  exposed at the inner frame opening. In the assembled state, planar spring lock  264  biases to a planar configuration over top of a recess formed in housing  262 . As illustrated by the detail cutaway view of  FIG.  20 A , a flange formed by a bend at each end of planar spring lock  264  inserts into a slot opening of housing  262  to engage against inner frame  268  at the guide members  276  so that the flange fixes inner frame  268  in position relative to housing  262 .  FIG.  20 B  depicts a cross-sectional view of interaction between planar spring lock  264  and inner frame  268  to hold the components in housing  262 . Planar spring lock  264  is folded at the end of the flange to create a catch  278  that couples under a lip  280  formed in guide member  276  of inner frame  268 . The upward bias of planar spring lock  264  maintains an elevated position of the planar surface above a recess in housing  262  and an inward force against inner frame  268  to keep catch  278  pressed under lip  280 .  FIG.  20 C  depicts that an inward press on planar spring lock  264  into the recess formed in housing  262  so that bending of planar spring lock  264  lifts the flange catch  278  out from under lip  280  of guide member  276  as indicated by arrow  284 . Once planar spring lock  264  releases and lifts out of the slot of housing  262 , inner frame  268  is free to slide out of housing  262  to disassemble the camera for reuse or recycling. 
     Referring now to  FIGS.  21  and  21 A through  21 C , an example of a camera is depicted that breaks a housing into separate sections to enhance camera repair, reuse and recycling.  FIG.  21    depicts a front perspective view of camera  300  having a housing divided between a front housing portion  308  that contains an image sensor and a rear housing portion  306  that contains processing, battery and communication resources. In the example embodiment, camera  300  is supported by a stand  302  and communicates through a USB cable  304  that plugs into rear housing portion  306 . In alternative embodiments, camera  300  may interface through wireless signal communication, such as WiFi and BLUETOOTH. Dividing camera  300  into separate front and rear housing portions provides the advantage of having functionally similar resources disposed in each housing portion. For instance, front housing portion  308  contains image sensor hardware while rear housing portion  306  contains support functions like power and communications. During repair, a housing portion with malfunctioning components is swapped with a replacement housing portion. Recycling and reuse are also simplified by the division of functions between the housing portions. 
     In the example embodiment, front housing portion  308  and rear housing portion  306  are formed by extruded aluminum to have front and rear openings on each side of a tube. In alternative embodiments, other materials may be used, such as plastics. The front and rear housing portions rotationally couple to each other with opposing members disposed on the inner circumference that engage with each other.  FIG.  21 A  depicts an example embodiment having hooks  312  of front housing portion  308  that extend outward and under a lip  310  of rear housing portion  306 .  FIG.  21 B  depicts a rotation of front housing portion  308  relative to rear housing portion  306  to misalign hooks  310  from lips  308  so that the housing portions release from each other.  FIG.  21 C  depicts the front and rear housing portions separated from each other after rotation to release hooks  310  from lips  308 . As is described in greater detail below, no screws, adhesives or wired connectors are used to assemble the front and rear housing portions to each other. 
     Referring now to  FIGS.  22  and  22 A through  22 C , an example camera depicts assembly and disassembly of a rear housing portion having camera processing resource and communications.  FIG.  22    depicts a front perspective view of rear housing portion  306  to illustrate components exposed to the front housing portion when assembled. Lip  310  is exposed to accept hooks from the front housing portion with a rotation of the housing portions relative to each other to couple the housing portions together. A flexible cable  314  interfaces with processing and power resources within rear housing portion  306  and a front printed circuit board  320  that supports a contactless connector  318  and power pogo pins  316 . When rear housing portion  306  rotationally couples to a front housing portion, the position of lips  310  aligns contactless connector  318  with a contactless connector of the image sensor in the front housing portion, such as to provide a range suitable for 60 GHz communication as described above. Similarly, rotation to the locked position aligns pogo pins  316  with contact pads of the front housing portion to provide a power and ground interface. Although pogo pins provide a good example of a biasing device to establish a power interface, in alternative embodiments, other types of spring biased contact devices may be used. In the example embodiment, the spring biased power contacts and the contactless connectors simplify the assembly and disassembly process. 
       FIGS.  22 A through  22 C  depict an example of disassembly of components from within the rear housing portion, such as for performing repair, reuse and recycling.  FIG.  22 A  depicts that a steel plate  332  couples to the rear side of rear housing  306  with magnets  330  and is removed by a prying interaction to expose two screws  334 .  FIG.  22 B  illustrates that, once the screws are removed, a subassembly built with a top frame  342  and a bottom frame  340  slides out of rear housing  306  to expose an upper printed circuit board  336  held in place by snaps formed in top frame  342 . Guides  338  extending from the inner circumference of rear housing  306  interact with the upper frame to provide the desired insertion orientation.  FIG.  22 C  depicts a separation to top frame  342  from bottom frame  340  that exposes an inner printed circuit board  336 . Printed circuit boards  336  supported power, communication and processing resource operations for components in both of the front and rear housing portions and can include the bio-based substrate as described above. The modular construction of the components within rear housing portion  306  aids in repair, reuse and recycling of individual components through ready access of the components within the housing interior. Flexible cable  314 , pogo pins  316  and contactless connectors  318  enable ready breakdown and reassembly of the camera based upon a functional division between support components in the rear housing portion and visual image components in the front housing portion. In the example embodiment, a pair of screws  334  are used to hold the subassembly of top frame  342  and bottom frame  340  in place within rear housing  306 ; however, in alternative embodiments the subassembly may be coupled in place with alternative devices, such as clips that couple to the subassembly and features of the rear housing portion through the front opening. 
     Referring now to  FIGS.  23  and  23 A through  23 B , an example camera depicts assembly and disassembly of a front housing portion having camera visual image sensor resources.  FIG.  23    depicts a rear perspective view of front housing portion  308  with hooks  312  that extend out to couple to lips of the rear housing portion. Three screws  340  couple a subassembly to an interior of front housing portion  308 . A printed circuit board  322  at the rear side of front housing portion  308  holds a contactless connector  324  that communicates visual image information to the contactless connector of the rear housing portion and a set of power contact pads  326  that align with the pogo pins of the rear housing portion. When hooks  312  couple front housing portion  308  to the rear housing portion by a rotational coupling, the pogo pins interface with power contact pads  326  to provide a ground and power interface with the printed circuit board  344  of the rear housing portion. As with the rear housing portion, front housing portion  308  may use alternative fastening strategies in the place of screws  340 , such as clips that couple to features of front housing portion  308 . 
       FIG.  23 A  depicts removal of a subassembly from the interior of front housing portion  308  that includes support for a visual image sensor that captures visual images for communication through contactless connectors  324  to the rear housing portion. Once the subassembly is released from front housing portion  308  by removal of the screws, the subassembly slides out of the rear opening of the front housing portion.  FIG.  23 B  depicts a separation of the top frame  342  from the bottom frame to release the visual image sensor  346 , which in the example embodiment includes an image sensor board and lens assembly. The breakdown of the camera into the front and rear housing portions provides improved repair, reuse and recycling of internal components with less waste at end of life. Further, construction of components in discrete or modular fashion to share recyclable materials, such as extruded aluminum and injection molded plastics, helps to simplify the process of breaking down products at end of life to direct recyclable portions to appropriate locations in a cost effective manner. 
     Although the present invention has been described in detail, it should be understood that various changes, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended claims.