USB camera module test structure

Abstract

The utility model discloses a USB camera module test structure, which comprises an SMT semi-finished product module, a USB flat cable, a lens positioning seat and a lens, and is characterized in that the SMT semi-finished product module comprises a circuit board, a sensor and a module connector, and the sensor and the module connector are respectively arranged on the circuit board; one end of the USB flat cable is connected with the module connector, and the other end of the USB flat cable is connected with an interface of the burning control terminal; a positioning hole is formed in the lens positioning seat, the lens positioning seat is placed on the circuit board, the sensor is located in the positioning hole, the lens is sleeved with a lens flange plate, and when the lens is placed on the lens positioning seat, one side face of the lens flange plate abuts against the top of the lens positioning seat. The lens is supported and positioned through the lens positioning seat, so that a simulation carrying structure is constructed, and a test does not need to be carried out after the camera module is completely assembled; therefore, waste of follow-up post resources and materials due to the fact that product defects are not found in time can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of camera module production and manufacturing, in particular to a USB camera module testing structure. Background Art

[0002] At present, the application fields of camera modules are becoming wider and wider, the application products are increasing, and the users of camera modules are also making more and more requirements on them, among which the camera module interface is one of them.

[0003] Existing camera module interfaces include DVP, MIPI, LVDS, USB, etc. The USB (Universal Serial Bus) interface is increasingly popular among users because of its plug-and-play and convenient testing and use characteristics. However, unlike camera modules with other interface types mentioned above, USB modules need to be burned with firmware when they are tested and shipped to light up the camera module. If the firmware is burned after the entire camera module is assembled, once it is found that the camera module cannot be lit or the display effect is abnormal, it will be refurbished or scrapped, which will cause greater waste of manpower and material resources.

[0004] In view of the above, a USB camera module test structure is proposed, so that the camera module can be tested after completing SMT (Surface Mount Technology) to reduce the waste of subsequent job resources and materials due to failure to discover product defects in a timely manner. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a USB camera module testing structure, so that the camera module can be tested after the SMT is completed, so as to reduce the waste of subsequent job resources and materials caused by the failure to discover product defects in time.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A USB camera module test structure comprises: an SMT semi-finished module, a USB cable, a lens positioning seat and a lens, wherein the SMT semi-finished module comprises a circuit board, a sensor and a module connector, wherein the sensor and the module connector are respectively arranged on the circuit board; one end of the USB cable is connected to the module connector, and the other end of the USB cable is connected to an interface of a burning control terminal; a positioning hole is provided on the lens positioning seat, the lens positioning seat is placed on the circuit board, and the sensor is located in the positioning hole, a lens flange is sleeved on the lens, and when the lens is placed on the lens positioning seat, a side surface of the lens flange abuts against the top of the lens positioning seat.

[0008] In one embodiment, the lens positioning seat is an acrylic positioning seat.

[0009] In one embodiment, the lens positioning seat is a metal positioning seat.

[0010] In one of the embodiments, a buffer layer is disposed on the surface of the lens positioning seat.

[0011] In one embodiment, the positioning hole is a circular structure.

[0012] In one embodiment, a diameter of the positioning hole is greater than a length of the sensor, so that the positioning hole surrounds the sensor.

[0013] In one embodiment, the lens positioning seat is a circular structure.

[0014] In one of the embodiments, a supporting protrusion is disposed at the bottom of the lens positioning seat.

[0015] In one embodiment, the circuit board is a PCB circuit board.

[0016] In one of the embodiments, electronic components are arranged on the circuit board.

[0017] Compared with the prior art, the utility model has at least the following advantages:

[0018] The USB camera module test structure of the utility model is provided with an SMT semi-finished module, a USB cable, a lens positioning seat and a lens. When the SMT semi-finished module is tested, the lens positioning seat can be placed on the circuit board, and the lens is supported and positioned by the lens positioning seat. In this way, a simulated mounting structure in which the lens is mounted on the sensor can be constructed, and there is no need to wait until the camera module is fully assembled before testing; then the SMT semi-finished module is connected to the burning control terminal through the USB cable, so that the burning firmware is burned into the SMT semi-finished module, and the firmware is stored in the flash chip (flash memory chip) of the SMT semi-finished module. Whether the SMT semi-finished module can be lit is tested by burning the firmware, so as to determine whether the SMT semi-finished module has any abnormality. In this way, the camera module can be tested after the SMT is completed, so as to reduce the waste of subsequent job resources and materials caused by the failure to timely discover product defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0020] Figure 1This is a structural diagram of a USB camera module test structure in one embodiment of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the lens and lens positioning seat of the USB camera module test structure;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure of the lens of the USB camera module test structure;

[0023] Figure 4 for Figure 2 A structural schematic diagram of a lens positioning seat of a USB camera module test structure; DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0025] See also Figure 1 , Figure 2 and Figure 3 As shown, a USB camera module test structure 10 includes: an SMT semi-finished module 100, a USB cable 200, a lens positioning seat 300 and a lens 400. The SMT semi-finished module 100 includes a circuit board 110, a sensor 120 and a module connector 130. The sensor 120 and the module connector 130 are respectively arranged on the circuit board 110; one end of the USB cable 200 is connected to the module connector 130, and the other end of the USB cable 200 is connected to the burning control terminal 500; a positioning hole 310 is opened on the lens positioning seat 300, the lens positioning seat 300 is placed on the circuit board 110, and the sensor 120 is located in the positioning hole 310, and a lens flange 410 is sleeved on the lens 400. When the lens 400 is placed on the lens positioning seat 300, one side of the lens flange 410 is abutted against the top of the lens positioning seat 300.

[0026] It should be noted that after the camera module completes the SMT (surface mount technology) operation, the SMT semi-finished module 100 is formed. When testing the SMT semi-finished module 100, first connect one end of the USB cable 200 with a USB The type-A interface is connected to the burning control terminal 500, and the other end of the USB cable 200 uses a connector that matches the module connector 130, so that the SMT semi-finished module 100 is connected to the burning control terminal 500, and the burning firmware is burned into the SMT semi-finished module 100 through the burning control terminal 500. The firmware is stored on the flash chip of the SMT semi-finished module 100. Since the SMT semi-finished module 100 is a semi-finished product, the test operation cannot be realized. Therefore, by setting a lens positioning seat 300 on the circuit board 110, and placing the lens 400 on the positioning hole 310, the lens is positioned by the lens positioning seat 300, and the sensor is located in the positioning hole, that is, the sensor 120 is located below the test lens 400, thereby forming a simulated mounting structure in which the lens is mounted on the sensor, and then the firmware is burned to test whether the SMT semi-finished module 100 can work normally. In this way, there is no need to wait until the entire camera module is assembled before performing the firmware burning test operation, so as to reduce the waste of subsequent job resources and materials caused by the failure to discover SMT defects in time. The burning control terminal is a burning computer, and the burning firmware is burned into the SMT semi-finished module 100 through the burning application on the burning computer, and the firmware is stored in the flash chip of the SMT semi-finished module. Among them, the circuit board adopts a PCB (Printed Circuit Board) circuit board. Furthermore, electronic components 111 are arranged on the circuit board 110. It should also be noted that by arranging a lens flange 410 on the lens 400, the lens is limited by the lens flange 410, so that a certain preset distance is formed between the lens 400 and the sensor 120, thereby simulating the distance between the lens and the sensor after actual assembly.

[0027] Preferably, in one embodiment, the lens positioning seat 300 is an acrylic positioning seat. That is, the lens positioning seat 300 is made of acrylic material, which has the advantages of high hardness and strong impact resistance, and can ensure the stability of the lens bearing. In order to prevent the lens positioning seat 300 from being scratched and damaged by the circuit board or the lens, a buffer layer, such as a rubber buffer layer, is provided on the surface of the lens positioning seat 300 to reduce the hardness of the surface of the lens positioning seat 300.

[0028] Preferably, in another embodiment, the lens positioning seat 300 is a metal positioning seat, such as an aluminum alloy positioning seat, and a buffer layer, such as a rubber buffer layer, can be provided on the surface of the lens positioning seat 300 to reduce the hardness of the surface of the lens positioning seat 300, so as to prevent the lens positioning seat 300 from causing scratches and damage to the circuit board 110 or the lens 400.

[0029] Preferably, the positioning hole 310 is in a circular structure. The structural shape of the positioning hole 310 matches the structural shape of the lens. Since the lens 400 adopts a cylindrical test lens, preferably, the positioning hole 310 is in a circular structure. In addition, the diameter of the positioning hole needs to be larger than the diameter of the lens to avoid the problem of the lens being scratched against the side wall of the positioning hole after being placed in the positioning hole.

[0030] Preferably, the diameter of the positioning hole 310 is greater than the length of the sensor 120, so that the positioning hole 310 surrounds the sensor 120. In this way, the sensor 120 can completely correspond to the bottom of the lens, thereby simulating a mounting structure.

[0031] Preferably, the lens positioning seat is a circular structure.

[0032] See also Figure 4 As shown, in one embodiment, a support protrusion 320 is provided at the bottom of the lens positioning seat 300. The support protrusion 320 increases the bottom area of ​​the lens positioning seat 300, thereby improving the stability of the lens positioning seat 300 and preventing the lens positioning seat from collapsing after the lens is placed in the lens positioning seat.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A USB camera module test structure, characterized in that: include: An SMT semi-finished module, wherein the SMT semi-finished module comprises a circuit board, a sensor and a module connector, wherein the sensor and the module connector are respectively arranged on the circuit board; A USB cable, one end of which is connected to the module connector, and the other end of which is connected to the interface of the burning control terminal; A lens positioning seat, wherein a positioning hole is formed on the lens positioning seat, the lens positioning seat is placed on the circuit board, and the sensor is located in the positioning hole. The lens is sleeved with a lens flange. When the lens is placed on the lens positioning seat, a side surface of the lens flange abuts against the top of the lens positioning seat.

2. The USB camera module test structure according to claim 1, characterized in that: The lens positioning seat is an acrylic positioning seat.

3. The USB camera module test structure according to claim 1, characterized in that: The lens positioning seat is a metal positioning seat.

4. The USB camera module test structure according to claim 2 or 3, characterized in that: A buffer layer is arranged on the surface of the lens positioning seat.

5. The USB camera module test structure according to claim 1, characterized in that: The positioning hole is in a circular structure.

6. The USB camera module test structure according to claim 1, characterized in that: A diameter of the positioning hole is greater than a length of the sensor, so that the positioning hole surrounds the sensor.

7. The USB camera module test structure according to claim 1, characterized in that: The lens positioning seat is a circular structure.

8. The USB camera module test structure according to claim 1, characterized in that: A supporting protrusion is arranged at the bottom of the lens positioning seat.

9. The USB camera module test structure according to claim 1, characterized in that: The circuit board is a PCB circuit board.

10. The USB camera module test structure according to claim 1, characterized in that: Electronic components are arranged on the circuit board.

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