Abstract:
A micro scan engine module is provided, which is used to scan and read barcode data. The micro scan engine module includes an outer case and a circuit board, in which the outer case is formed as an integral body. After the outer case and the circuit board are assembled, a complete scan engine module is formed. Through the integral design of the outer case, the errors during assembly the components are reduced, the working efficiency of the scan engine module is effectively improved, and the manufacturing cost is reduced.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of Invention 
         [0002]    The present invention relates to a micro scan engine module, which is used to scan and read barcode information, and more particularly to a micro scan engine module having a case body formed integrally. 
         [0003]    2. Related Art 
         [0004]      FIG. 1  is a schematic structural view of a conventional scan engine module. Referring to  FIG. 1 , the scan engine module  10  is disposed in a device such as a scanner or a barcode reader, so as to scan or read barcode information. The scan engine module  10  includes a cover  101 , a base  102  and a circuit board  103 . More than one first light reflectors  1011  and a second light reflector  1012  are assembled inside the cover  101 . The base  102  may be provided to assemble the cover  101 , and a light channel  1021  is formed at the bottom inside the base  102 . A light source channel  1022  is respectively formed at two ends of the light channel  1021 . A lens  1023  is assembled at one end of the light channel  1021 , and a collecting lens  1024  is assembled at one end of the light source channel  1022 . Moreover, the bottoms of the other ends of the light source channel  1022  and the light channel  1021  are formed hollow. Two light emitting diodes (LEDs)  1031  and a light source sensor  1025  are electrically connected to a plane of the circuit board  103 , and the circuit board  103  is assembled at the bottom of the base  102 . 
         [0005]      FIG. 2  is a schematic view of implementation of the conventional scan engine module. Referring to  FIG. 2 , after the components are assembled, the first light reflector  1011  is located above the LEDs  1031 , and the second light reflector  1012  is located above the light source sensor  1025 . When the LEDs  1031  are actuated, a light source A generated by the LEDs  1031  is reflected by the first reflector  1011  and is emitted out through the light source channel  1022 . After the light source A is irradiated on an object, a reflected light B is formed, and is refracted by the second light reflector  1012  after being collected by the lens  1023  and is irradiated on the light source sensor  1025 , so that the light source sensor  1025  can read related information. It can be known that, the outer case part of the conventional scan engine module  10  includes the cover  101  and the base  102 , and the number of the components inside is complicated. In fact, the size of the module is quiet large, therefore, if the module applies in smaller devices, it would be unable to attain the need of microminiaturization, yet also the application of the module would be limited considerably. Moreover, errors easily occur during assembling of the first light reflectors  1011  and the second light reflectors  1012  on the cover  101 , which causes deviation of focal length and light, thereby influencing the overall function. Furthermore, the manufacturing cost is increased due to the multiple components being included. 
       SUMMARY OF THE INVENTION 
       [0006]    In view of the above problems, the present invention is directed to a micro scan engine module that can effectively reduce the errors in assembly and improve the efficiency of the scan engine. 
         [0007]    In order to achieve the objectives, the micro scan engine module of the present invention mainly includes an outer case and a circuit board. The outer case is formed integrally, and the circuit board and the outer case are assembled into a whole. Due to the integral design of the outer case, the assembly errors caused during assembly of the components are effectively reduced, and the manufacturing cost is effectively decreased. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0008]    The present invention will become more fully understood from the detailed description given herein below for illustration only, and thus are not limitative of the present invention, and wherein: 
           [0009]      FIG. 1  is a schematic structural view of a conventional scan engine module; 
           [0010]      FIG. 2  is a schematic view of implementation of the conventional scan engine module; 
           [0011]      FIG. 3  is a three-dimensional external view of the present invention; 
           [0012]      FIG. 4  is a schematic structural exploded view of the present invention; 
           [0013]      FIG. 5  is a schematic structural view (I) of the present invention; 
           [0014]      FIG. 6  is a schematic view of implementation of the present invention; and 
           [0015]      FIG. 7  shows another embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0016]      FIG. 3  is a three-dimensional external view of the present invention. As shown in  FIG. 3 , the micro scan engine module  20  mainly includes an outer case  201  and a circuit board  202 . The outer case  201  is a component formed integrally, a lens  203  is assembled in the front of the outer case  201 , and a collecting lens  204  is respectively assembled at two sides of the lens  203 . Moreover, the circuit board  202  is assembled at the rear of the outer case  201 , so that the outer case  201  and the circuit board  202  are formed into a whole after assembly, thereby meeting the requirement of reducing the components for assembly. 
         [0017]      FIG. 4  is a schematic structural exploded view of the present invention. As shown in  FIG. 4 , the outer case  201  has an integrally formed aspect, an accommodation space  2011  is provided in the outer case  201 , an assembly portion  2012  is formed at the rear of the out case  201 , and the assembly portion  2012  and the accommodation space  2011  are in communication. Furthermore, a light incident hole  2013  is formed in the front of the outer case  201 , a light emitting hole  2014  is respectively formed at two sides adjacent to the light incident hole  2013 , and a fastening portion  2015  is formed in the light emitting hole  2014 . A light sensor  2021  for sensing a light is electrically connected to the circuit board  202 , and more than one light emitting source (for example, LED or laser diode)  2022  is electrically distributed on a plane adjacent to the light sensor  2021  of the circuit board  202 . After the circuit board  202  is driven by a power supply, the light emitting source  2022  emits a light source, and the circuit board  202  may be assembled on the assembly portion  2012  of the outer case  201 , so that the circuit board  202  and the outer case  201  are formed into a whole in the normal state after assembly. Accordingly, the lens  203  is assembled in the light incident hole  2013 , and the material of the lens  203  may be, for example, transparent resin, glass or plastics, and the surface of the lens  203  may be formed into an arc, so as to achieve the effect of light collection and enlarge the range of light collection. Thus, when being emitted and reflected, the light emitted by the light emitting source  2022  can be collected and irradiated on the light sensor  2021  due to the effect of light collection of the lens  203 , thus achieving better efficiency when the light sensor  2021  senses the light. Moreover, the collecting lens  204  has the effect of light collection, and an opposite fastening portion  2041  is formed on the collecting lens  204 , so when the collecting lens  204  is assembled in the light emitting hole  2014 , the opposite fastening portion  2041  may be further fastened with the fastening portion  2015 , so that the collecting lens  204  can be fixed in the light emitting hole  2014  in the normal sate, and the collecting lens  204  after being fixed enables the light emitted by the light emitting source  2022  to have the effect of light collection when passing through the collecting lens  204 , thus improving the intensity of the light irradiated on an object by the light emitting source  2022 . The aspect of the component after being assembled is shown in  FIG. 3 . 
         [0018]      FIG. 5  is a schematic structural view (I) of the present invention. As shown in  FIG. 5 , a first light source channel  2016  and a second light source channel  2017  are formed in the accommodation space  2011  inside the outer space  201 , and a closed block wall  2018  is formed between the light source channels ( 2016  and  2017 ), so that the light source channels ( 2016  and  2017 ) form independent spaces, thereby avoiding interference of light when the light passes through the light source channels ( 2016  and  2017 ).  FIG. 6  is a schematic view of implementation of the present invention. Referring to  FIG. 6  further, in the implementation of the present invention, when the circuit board  202  is driven by a power supply, the light emitting source  2022  generates a light source C, and the emitted light source C directly passes through the first light source channel  2016  and is irradiated on the collecting lens  204 . After passing through the collecting lens  204 , the light source C is irradiated on a surface of an object, for example, a barcode pattern. After the surface of the object is irradiated by the light source C, a reflected light D is further generated, and the generated reflected light D is then irradiated on the lens  203  and enters the second light source channel  2017 . After being collected by the lens  203 , the reflected light D is collected and irradiated on the light sensor  2021 , so that the light sensor  2021  can sense the reflected light D, and perform analysis through an electronic unit of the circuit board  202 . 
         [0019]      FIG. 7  shows another embodiment of the present invention. As shown in  FIG. 7 , the whole micro scan engine module  20  is a micro module by using the present invention, and can be further assembled on a handheld communication device  30  or other handheld electronic devices. As shown in  FIG. 7 , a user can use the micro scan engine module  20  assembled on the handheld communication device  30  to scan or read data, for example, scan a barcode  31 , so that information on the barcode  31  can be displayed on the handheld communication device  30  after recognition for convenience of data scanning or reading by the user. 
         [0020]    In view of the above, in the micro scan engine module of the present invention, the outer case is formed integrally, so as to reduce the number of the components and simplify the assembly of the whole module. After implementation of the present invention, the objective of providing a micro scan engine module that can effectively reduce the errors in assembly and improve the efficiency of the scan engine can be actually achieved. 
         [0021]    The above descriptions are merely preferred embodiments of the present invention, but are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, and improvement made by persons skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the present invention. 
       LIST OF REFERENCE NUMERALS 
     Scan Engine Module 
       [0000]    
       
           101  Cover 
           102  Base 
           1011  First light reflector 
           1021  Light channel 
           1012  Second light reflector 
           1022  Light source channel 
           103  Circuit board 
           1023  Lens 
           1031  LED 
           1024  Collecting lens 
           1025  Light source sensor 
           10  Micro scan engine module 
           201  Outer case 
           202  Circuit board 
           2011  Accommodation space 
           2021  Light sensor 
           2012  Assembly portion 
           2022  Light emitting source 
           2013  Light incident hole 
           204  Collecting lens 
           2014  Light emitting hole 
           2015  Fastening portion 
           2016  First light source channel 
           2017  Second light source channel 
           2018  Block wall 
           203  Lens 
           30  Handheld communication device 
           31  Barcode 
         A Light source 
         B Reflected light 
         C Light source 
         D Reflected light