PATENT DOCUMENT

Publication Number: US-9343850-B2
Application Number: US-201214351287-A
Country: US
Kind Code: B2

Title: Power adapter with a single-piece insulator assembly

Abstract:
An AC-to-DC power adapter comprises a single-piece insulator unit. The various components of the power adapter such as a transformer, other circuitry, etc. are attached to the single-piece insulator unit. The single-piece insulator unit has embedded channels to provide electrical connectivity between the circuitry, The entire assembly is placed in housing and a cap assembly having prongs to connect to a AC wall outlet is ultrasonically welded to the housing.

Claims:
What is claimed is: 
     
       1. A power adapter comprising:
 a first connector; 
 a first electrical assembly coupled to the first connector and configured to receive an incoming AC voltage and convert it to a DC voltage; 
 a second connector; 
 a second electrical assembly coupled to the second connector and configured to accept the DC voltage and output the DC voltage via the second connector; and 
 a single-piece insulator unit having a first side and a second side, wherein the first electrical assembly is coupled to the first side and the second electrical assembly is coupled to the second side; and 
 wherein the insulator unit electrically insulates the first electrical assembly from the second electrical assembly and comprises one or more channels embedded therein to provide an electrical path between the first electrical assembly and the second electrical assembly at designated locations. 
 
     
     
       2. The power adapter of  claim 1  wherein the second connector comprises a universal serial bus (USB) connector. 
     
     
       3. The power adapter of  claim 1  wherein the first connector is configured to mate with a wall outlet that provides between 110-220 VAC. 
     
     
       4. The power adapter of  claim 1  wherein the single-piece insulator unit comprises glass-filled nylon material. 
     
     
       5. The power adapter of  claim 1  wherein the single-piece insulator unit is disposed between a cap assembly having the first connector and a rear wall having an opening to the second connector. 
     
     
       6. The power adapter of  claim 5  wherein each of the one or more channels includes a conducting member that provides electrical connectivity between the first electrical assembly and the second electrical assembly. 
     
     
       7. The power adapter of  claim 1  further comprising:
 a power transformer attached to the single-piece insulator unit; and 
 a common mode choke attached to the single-piece insulator unit. 
 
     
     
       8. The power adapter of  claim 7  further comprising a housing enclosing the single-piece insulator unit, the first electrical assembly, the second electrical assembly, the power transformer, and the common mode choke. 
     
     
       9. The power adapter of  claim 8  wherein the housing comprises materials selected from plastic, rubber, ceramic, or silicon. 
     
     
       10. An insulator assembly comprising:
 a single-piece structure having a first side and a second side, the first and the second side, each side having features thereon to accept a first circuitry and a second circuitry, respectively, wherein the single-piece structure electrically insulates the first circuitry from the second circuitry; 
 one or more channels embedded in the single-piece structure, wherein each of the one or more channels extends from the first side to the second side; and 
 electrically conducting members disposed in each of the one or more channels to provide electrical connection between the first circuitry and the second circuitry. 
 
     
     
       11. The insulator assembly of  claim 10  wherein the single-piece structure comprises glass-filled nylon material. 
     
     
       12. The insulator assembly of  claim 10  wherein the conducting members comprise metal. 
     
     
       13. The insulator assembly of  claim 10  wherein the second circuitry includes a connector for providing DC power to an external device connected to the connector. 
     
     
       14. The insulator assembly of  claim 10  wherein the single-piece structure has a length in the range of about 20 mm to 22 mm, a width in the range of about 19 mm to 21 mm, and a height in the range of about 18 mm to 21 mm. 
     
     
       15. The insulator assembly of  claim 10  wherein the single-piece structure comprises an insulating material having a V-0 flame rating. 
     
     
       16. A method comprising:
 providing a single-piece insulator unit having a first side and a second side, wherein each of the first side and the second side includes features formed thereon and the insulator unit electrical insulates the first side from the second side; 
 attaching a transformer at a first predefined location of the single-piece insulator unit; 
 attaching a common mode choke at a second predefined location of the single-piece insulator unit; 
 attaching a primary printed circuit board (PCB) including a first circuitry to the first side of the single-piece insulator unit; 
 attaching a secondary PCB including a second circuitry to the second side of the single-piece insulator unit; 
 providing electrical connectivity between the primary PCB and the secondary PCB through one or more channels within the single-piece insulator unit; 
 attaching a cap assembly to the single-piece insulator unit; 
 placing the single-piece insulator unit inside a housing; and 
 attaching the cap assembly to the housing to seal the single-piece insulator unit within the housing. 
 
     
     
       17. The method of  claim 16  wherein the one or more channels extend from the first side to the second side and providing the electrical connectivity further comprises placing conductive members in the one or more channels to provide an electrical path between the first circuitry and the second circuitry. 
     
     
       18. The method of  claim 16  wherein attaching the transformer further comprises applying an adhesive to one or more portions of the transformer and applying a compressive force to the transformer. 
     
     
       19. The method of  claim 16  wherein attaching the primary PCB and the secondary PCB to the single-piece insulator unit comprises using a wave soldering technique. 
     
     
       20. The method of  claim 16  wherein attaching the cap assembly to the housing comprises ultrasonically welding the cap assembly to the housing.

Description:
CROSS-REFERENCES TO RELATED APPLICATIONS 
     This application is a National Stage entry of PCT/US2012/059798 filed Oct. 11, 2013, which claims benefit under 35 USC §119(e) to U.S. Provisional Patent Application No. 61/547,020 filed Oct. 13, 2011, the disclosure of which are incorporated by reference herein in their entirety for all purposes. 
    
    
     BACKGROUND 
     Power adapters are ubiquitous and are used in a variety of electronic devices. Some power adapters convert an incoming AC voltage into a DC voltage for use be a connected electronic devices. Some other power adapters convert an AC waveform to another AC waveform, where the output voltage and frequency can be set arbitrarily. Most electronic devices operate on a DC voltage. Examples of electronic devices include but are not limited to computers, portable media players, tablets, mobile phones, etc. 
     Most of these electronic devices have an internal battery that can be charged by applying a DC voltage to the battery. The battery stores the charge, which can then be used by the electronic device for its operation. Most electrical energy supplied to homes and industries is in the form of AC voltage. Thus, in order to charge the battery of an electronic device, it is necessary to convert the AC voltage to the required DC voltage. Many of the power adapters in use today are designed to accept incoming AC voltage, e.g., via a receptacle connector located in the wall (commonly known as a “wall outlet”), and convert it to a DC voltage. The explanation of AC and DC voltage is omitted here since they well-known in the art. 
     In a power adapter, a transformer converts the incoming AC power to DC power and associated circuitry may filter and regulate the DC to a desired value. Each of the individual components of a basic conventional AC-DC adapter is well-known in the art. Often some sort of insulator material is provided between the high-voltage circuitry of the adapter (e.g., AC voltage) and the low voltage circuitry (e.g., DC voltage). The insulator material helps to protect the low voltage circuitry from being affected by malfunction in the high voltage circuitry. 
     Conventionally, the process of assembling a power adapter includes many manual steps. For example, an insulating material such as a Kapton® tape is hand-wrapped around the high-voltage components in order to provide the required insulation. Since a manual process is prone to large variations in quality and reliability, a better process of manufacturing a power adapter will greatly alleviate the quality issues and aid in the manufacturability of the power adapters. Other potential problems may be related to the use of separate printed circuit boards (i.e., one for the AC circuit and the other for the DC circuit), in that the boards must be electrically connected to each other prior to final assembly. This can result in manufacturing problems since individual connection wires may need to be hand soldered and because the small components must be held in place in a very small area during the manufacturing process. Some attempts at dealing with the potential wiring issues have been made by utilizing ribbon cable. Such cables, however, can be bulky, stiff and hard to work with in the small confines of power adaptors. They may, for example, require tape and/or glue to be held in place. 
     SUMMARY 
     Embodiments of the present invention are generally related to power adapters. More specifically, some embodiments of the present invention are related to a single-piece insulator assembly that has features and channels embedded therein that assist in quick and accurate assembly of a power adapter. 
     Some embodiments of the present invention provide a power adapter. The power adapter includes a first connector and a first electrical assembly coupled to the first connector and configured to receive an incoming AC voltage and convert it to a DC voltage. The power adapter further includes a second connector and a second electrical assembly coupled to the second connector and configured to accept the DC voltage and output the DC voltage via the second connector. In addition, the power adapter also includes a single-piece insulator unit that has a first side and a second side. The first electrical assembly is coupled to the first side and the second electrical assembly is coupled to the second side. The insulator assembly further includes one or more channels embedded within it to provide an electrical path between the first electrical assembly and the second electrical assembly at designated locations. The power adapter further includes a power transformer attached to the single-piece insulator unit and a common mode choke attached to the single-piece insulator unit. 
     Some embodiments of the present invention provide an insulator assembly. The insulator assembly includes a single-piece structure that has a first side and a second side. Each of the first and the second side has features thereon to enable the single-piece structure to accept a first circuitry and a second circuitry, respectively. There are one or more channels embedded in the single-piece structure. Each of the one or more channels extends from the first side to the second side. The single-piece structure further includes electrically conducting members disposed in each of the one or more channels to provide electrical connection between the first circuitry and the second circuitry. In a particular embodiment, the single-piece structure is made from a material that has a V-0 flame rating, e.g., glass-filled nylon. 
     Some other embodiments of the present invention provide a method for assembling or manufacturing a power adapter. The method includes providing a single-piece insulator unit that has a first side and a second side. Each of the first side and the second side includes features that are formed thereon. The method further includes attaching a transformer at a first predefined location of the single-piece insulator unit and attaching a common mode choke at a second predefined location of the single-piece insulator unit. The method also includes attaching a primary printed circuit board (PCB) including a first circuitry to the first side of the single-piece insulator unit and attaching a secondary PCB including a second circuitry to the second side of the single-piece insulator unit. In addition the method includes providing electrical connectivity between the primary PCB and the secondary PCB. Finally, the method includes attaching a cap assembly to the single-piece insulator unit, placing the single-piece insulator unit inside housing, and attaching the cap assembly to the housing to seal the single-piece insulator unit within the housing. 
     The following detailed description, together with the accompanying drawings will provide a better understanding of the nature and advantages of the embodiments of the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS. 1A and 1B  illustrate a power adapter according to an embodiment of the present invention. 
         FIG. 2  is a partially exploded view of a power adapter illustrating various top-level components of the power adapter according to an embodiment of the present invention. 
         FIGS. 3A and 3B  illustrates partial cross-sectional views of the adapter according to an embodiment of the present invention. 
         FIG. 4  illustrates an exploded view of the top-level electrical assembly according to an embodiment of the present invention. 
         FIG. 5  is an isometric view of the single-piece insulator according to an embodiment of the present invention. 
         FIGS. 6A-6J  illustrate a process for assembling the power adapter according to an embodiment of the present invention. 
         FIGS. 7A and 7B  is a flow chart of a process for manufacturing a power adapter corresponding to  FIGS. 6A-6J , according to an embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments of the present invention are generally related to power adapters. More specifically, some embodiments of the present invention provide a power adapter that includes a single-piece insulator structure. The insulator structure includes features that are designed to accept a primary printed circuit board (PCB), a transformer, and a secondary PCB. The insulator structure has embedded channels in it and metal members can be inserted in the channels to create an electrical path between the primary PCB and the secondary PCB. Power adapters for use with portable electronic devices are disclosed. The power adapters disclosed herein can be manufactured in a more efficient and consistent manner that can result in one or more advantages. For example, the use of a single-piece insulator assembly, as described below, results in consistent, reliable and adequate spacing between the primary and secondary circuits such that the power adapters consistently meet or exceed the required safety tolerances. In addition, for example, the use of conductive pins/members instead of wires, as described below, to electrically couple the primary and secondary stages together also results in reduced manufacturing requirements and more consistently manufactured and reliable end products. 
     Other embodiments of the present invention provide method for manufacturing a power adapter. The method includes providing a single-piece insulator structure that has embedded electrical pathways that extend from one side to another side of the insulator structure. A common mode choke, a transformer, a primary PCB that includes high-voltage (e.g., AC) circuitry, and a secondary PCB that includes a low-voltage (e.g., DC) circuitry are attached to the insulator structure in that order to form the electrical assembly of the power adapter. The input to the common mode choke is connected to the input prongs on a cap assembly. The entire assembly is then inserted into a housing and the cap assembly is ultrasonically welded to the housing to complete the adapter. 
       FIGS. 1A and 1B  illustrate isometric views of a power adapter  100  according to an embodiment of the present invention. Power adapter  100  includes a housing  102  and a cap assembly  104 . Housing  102  can be made of any suitable material, e.g., plastic, rubber, ceramic, silicon, etc. Although housing  102  is illustrated as having a rectangular shape, this is not needed. Housing  102  can have any other shape as needed for a particular application. Cap assembly  104  may include two or more connectors  106 . Connectors  106  are designed to mate with a corresponding receptacle connector that provides AC power, e.g., a wall outlet. At an end opposing the cap assembly, adapter  100  may include another connector  108 . For example, connector  108  may be a USB connector; however, any other connector may also be used. Connector  108  can be used to couple adapter  100  with an external device to power or charge the external device. For example, a cable having a complimentary USB connector can be connected to connector  108 . The other end of the cable may have any other suitable connector based on the application. Examples of such connector includes but is not limited to a μUSB connector, a 30-pin connector used by Apple Inc. device, a Lightning® connector used by Apple Inc. devices, etc. In one embodiment, adapter  100  is about 28 mm in height (not including prongs  106 ) or about 34-35 mm in height including prongs  106 . The width of the adapter may be between 25 mm and 27 mm and the depth of the adapter may be between 25 mm and 28 mm. 
     Power adapter  100  can receive AC power (e.g., 110-220 VAC) via connectors/prongs  106  and output DC power (e.g., 5-20 V) via connector  108 . The DC voltage can be used by a connected external device for its operation or charging its battery as described above.  FIG. 2  illustrates an exploded view of adapter  100  according to an embodiment of the present invention. As illustrated in  FIG. 2 , adapter  100  includes housing  102  and cap assembly  104 . Disposed within housing  102  is an electrical assembly  202 . Electrical assembly  202  includes circuitry for receiving AC voltage, converting the AC voltage to a desired DC voltage, and outputting the DC voltage via another connector (not shown). Housing  102  may include rails (not shown) or guide pins that allow precise positioning of electrical assembly  202  within housing  102 . In some embodiments, electrical assembly  202  may need to be inserted in a particular orientation in order to fit inside housing  102 . 
       FIGS. 3A and 3B  illustrate partial cross-sectional views of adapter  100  according to an embodiment of the present invention. As illustrated in  FIG. 3A , electrical assembly  202  can be positioned using channels  302  that may be formed in cap assembly  104  and an internal surface of housing  102  opposing cap assembly  104 . An opening  304  in a side of housing  102  that is opposite to cap assembly  104  can accommodate connector  108 . 
       FIG. 4  is an exploded view of electrical assembly  202  showing its constituent components according to an embodiment of the present invention. Electrical assembly  202  includes a single-piece insulator  404  that includes pre-defined features that facilitate attachment of other components of electrical assembly  202 . Insulator  404  is described in more detail below. Electrical assembly  202  may also include a primary PCB  402  having circuitry formed thereon. Primary PCB  402  may include multiple electronic components such as capacitors, resistors, transistors, etc. that are exposed to the incoming AC voltage, which is higher than the output DC voltage. Primary PCB  402  may be manufactured using any of the conventional techniques. Electrical assembly further includes a secondary PCB  406  that has circuitry thereon. The circuitry on secondary PCB may include filter circuit for smoothing out the DC voltage before being outputted. Secondary PCB  406  also includes connector  108  that can be used to output the DC voltage to external devices. 
       FIG. 5  illustrates an isometric view of a single-piece insulator  404  according to an embodiment of the present invention. Insulator  404  can be prepared using a mold and filling the mold with glass-filled nylon to generate a single homogenous unit. As can be seen, insulator  404  has several features formed thereon. Each of these features serve a specific purpose. A recess  502  is designed to accommodate sections of a primary PCB (e.g., primary PCB  402  of  FIG. 4 ). Opening  504  is designed to accommodate a transformer that is used to convert AC voltage to DC voltage. Recessed feature  506  is designed to accommodate a secondary PCB (e.g., PCB  406  of  FIG. 4 ) and its associated connector (e.g., connector  108  of  FIG. 4 ). Several channels  508  are formed in the insulator walls. Channels  508  extend from a first surface of insulator  404  that receives the primary PCB to a second surface that receives the secondary PCB. Conductive members/pins  510  that are disposed in channels  508  provide electrical connectivity between the primary PCB and the secondary PCB. Pins  510  can be inserted into channels  508  within such that they extend slightly beyond each end of the channels. In some embodiments, conductive pins  510  may be manufactured using stainless steel as a core material, which would provide desired strength and stiffness. The core could be coated with a layer of copper to provide pins  510  with excellent conductivity properties. Then the layer of copper could be coated with a layer of nickel such that the pins should form excellent solder joints when soldered to other components or PCBs. The use of pins and channels simplifies the manufacturing process while improving overall reliability (due to the interconnections being physically fixed in place instead of being taped and/or glued in place). In addition, the use of pins and channels also reduces the overall space requirements for wiring, which is at a premium in a confined space such as within housing  102 . 
     Insulator  404  may at the same time provide insulation and isolation between other sections of the two PCB&#39;s. In order to protect the low voltage sections of the adapter from the high voltage sections, it is beneficial to have an insulating material between the two voltage sections. If the power adapter is sufficiently large in dimension, air can be used as an effective insulator. However, in compact power adapter such as the one described herein, the various components of the adapter are packed densely leading to very little space between the low and high voltage components. In these circumstances, air is not an effective insulating medium and other insulating mechanisms may be needed. 
     In some embodiments, insulator  404  may be made from a material that is V-0 safety rated per the UL standards. For example, in an embodiment, insulator  404  may be made from glass-filled nylon. Other suitable materials such as silicone-based materials may also be used. Since the manufacturing process for the adapter includes several rounds to wave soldering, any material chose for insulator  404  needs to withstand wave soldering temperatures, which range from between 200° C. to 300° C. In some embodiments, insulator  404  may have the following dimensions: a length in the range of about 20 mm to 22 mm, a width in the range of about 19 mm to 21 mm, and a height in the range of about 18 mm to 21 mm. 
     As described above, an insulating tape can be used to cover the high voltage components; however such a manual technique is difficult to replicate with accuracy in a mass manufacturing environment. Also, allowing such an important step in the manufacturing process to be manual may expose the adapter to increased failure rates and more importantly is a significant safety hazard. A failure of the insulation may result in arcing or permanently damage the adapter and/or the external device connected to the adapter. By providing a single-piece insulator as described above, the manufacturing process is greatly simplified and is more repeatable since the number of manual steps are significantly decreased or eliminated altogether. 
       FIGS. 6A-6J  illustrates steps in the assembly process of a power adapter according to an embodiment of the present invention.  FIGS. 7A and 7B  illustrate a corresponding flow diagram  700  for the assembly process depicted in  FIGS. 6A-6J . The assembly process is described below with reference to  FIGS. 6A-6J and 7A-7B . The entire assembly process may be automated or some parts of the assembly process may be manual while others may be automated. A different machine may be used to perform each step of the process or several steps in the process may be performed by a single machine. One skilled in the art will realize numerous variations in how the process is performed. 
     As illustrated in  FIG. 6A , initially a single-piece insulator structure  600  may be provided (Step  702 ). As described above, single-piece insulator structure  600  may be made using glass-filled nylon that is introduced into a custom mold. Single-piece insulator structure  600  includes many features formed thereon as described above. Next, electrically conducting members  602  are inserted into the various channels that are formed in single-piece insulator structure  600  for that purpose (Step  704 ). Electrically conducting members may be made of any suitable conducting material such as copper clad steel, brass, aluminum, conductive metal alloys, etc. As described above, the electrically conducting members/pins provide an electrical path between the high-voltage circuitry and the low-voltage circuitry of the adapter. 
     Next, power transformer  604  is inserted in a recess of single-piece insulator structure  600  that is designed to accept the power transformer, as illustrated in  FIG. 6B  and Step  706 . In some embodiments, an adhesive such as epoxy-based glue is applied around power transformer  604  and a compressive force is applied to the power transformer for a predetermined time in order to further ensure that the attachment of transformer  604  to single-piece insulator structure  600  is robust. Thereafter, a common mode choke  606  is attached to single-piece insulator structure  600  as illustrated in  FIG. 6C  (Step  708 ). Wires from common mode choke  606  are routed via designated channels  607 . The use of pre-formed channels helps to keep the common mode choke wires in the right location (e.g., they remain tight and close to insulator structure  600  which makes installation of the completed subassembly in housing  102  significantly more efficient) and also increases overall manufacturing efficiency in that channels maintain the wires in the proper location for termination to other components downstream in the manufacturing process. 
     Thereafter, a primary PCB  608  is attached to single-piece insulator structure  600  at a designated side as illustrated in  FIG. 6D  (Step  710 ). As described above, primary PCB  608  has high-voltage circuitry that interacts with the incoming AC voltage. In some embodiments, an adhesive may be used to further make the attachment of primary PCB  608  to single-piece insulator  600  more robust.  FIG. 6E  illustrates assembly  610  that includes the single-piece insulator, the common mode choke, and the primary PCB attached together. Assembly  610  is shown flipped over to reveal the region of single-piece insulator that can accept the secondary PCB. During this process, visual inspections may be performed to insure that each of the components ends up in the proper location and that all wires/pins that were intended to extend through holes in PCB  608  have done so (which the inspection process is suggested, the use of insulator structure  600  in the process greatly increases the likelihood that the manufacturing process has been accomplished without error). Once insulator structure  600  and primary PCB  608  have been successfully mated together, a wave solder process can be used to solder the pins, capacitors and other components to primary PCB  608 , at which point the subassembly is substantially complete. 
     Next, a secondary PCB  612  is attached to assembly  610  as illustrated in  FIG. 6F  (Step  712 ). Secondary PCB includes low-voltage circuitry and connector  108 , which is described above. The low voltage circuitry may include, e.g., filter circuitry to smooth out the DC output voltage before it is provided to a connected external device.  FIG. 6G  shows a completely electrical assembly  614 . Assembly  614  is similar to assembly  202  illustrated in  FIG. 2 . Another wave soldering process can be utilized to secure and electrically couple connector  108  (and any additional discrete components needs (not shown)) to secondary PCB  612 , as well as securing and electrically coupling the appropriate pins to secondary PCB  612 . 
     Next, the inputs to the primary stage of the transformer of assembly  614  are connected to input terminals  616  of cap assembly  104  (Step  714 ) which provides the capability for wall power to be coupled to the primary stage of the transformer when the completed power adapter is plugged into a wall outlet, as illustrated in  FIG. 6H . Thereafter, the entire assembly  614  is inserted into adapter housing  102  (Step  716 ), as illustrated in  FIG. 6I . Once the assembly is inserted into housing  102 , cap assembly  104  is welded to housing  102  using ultrasonic welding (Step  718 ). At the end of the assembly process power adapter  100  is complete as illustrated in  FIG. 6J . 
     It should be appreciated that the specific steps illustrated in  FIGS. 6A-6J and 7A-7B  provide a particular method of manufacturing a power adapter according to an embodiment of the present invention. Other sequences of steps may also be performed according to alternative embodiments. For example, alternative embodiments of the present invention may perform the steps outlined above in a different order. Moreover, the individual steps illustrated in  FIGS. 6A-6J and 7A-7B  may include multiple sub-steps that may be performed in various sequences as appropriate to the individual step. Furthermore, additional steps may be added or removed depending on the particular applications. One of ordinary skill in the art would recognize many variations, modifications, and alternatives. 
     Also, while a number of specific embodiments were disclosed with specific features, a person of skill in the art will recognize instances where the features of one embodiment can be combined with the features of another embodiment. Also, those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the inventions described herein. Such equivalents are intended to be encompassed by the following claims.

Metadata:
Filing Date: 20121110
Publication Date: 20160517
Grant Date: 20160517
Priority Date: 20111013
Inventors: COLAHAN IAN P.
VISTA FIEDL NICK
Assignee: APPLE INC
CPC Classifications: [{"code": "H01R31/065", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/6633", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01R4/70", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/6675", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/504", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01B17/64", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/665", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01R13/504", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01R13/6675", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01R31/065", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/6633", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01R31/065", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/6675", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01R4/70", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/665", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01B17/64", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R31/065", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/504", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01R13/6675", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01R13/6633", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01R13/6633", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01R13/504", "inventive": false, "first": false, "tree": "[]"}, {"code": "H02M7/003", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 47190130