Test fixture for double camera modules

Abstract

The utility model discloses a test fixture for double camera modules, which comprises a bottom plate, a conductive needle assembly and PCB fixing grooves, a test circuit is arranged in the bottom plate, the same side of the bottom plate is provided with two PCB fixing grooves for fixing PCBs, the PCB fixing grooves are arranged on the same horizontal plane, the conductive needle assembly is arranged on the PCB fixing grooves, the conductive needle assembly is electrically connected with the test circuit, and the test circuit is electrically connected with the PCB fixing grooves. Compared with the prior art, the contact effect of the conductive needle assembly and the PCB is more stable, the tolerance problem caused by the size of the double-camera module is solved, and the compatibility is high. According to the utility model, the end part of the ejector pin, which is abutted against the pad point on the PCB, is provided with the telescopic elastic head, and when the pressing piece presses the PCB, the ejector pin and the elastic head are both made of conductive materials, so that the contact between the ejector pin and the PCB is more reliable, and the practicability of the test fixture is improved.

Description

Technical Field

[0001] The utility model relates to the field of fixtures, in particular to a test fixture for a dual-camera module. Background Art

[0002] With the development of today's society, intelligent devices such as robots, driverless cars, and drones are developing rapidly. The camera modules installed in intelligent devices need to be upgraded synchronously. The emergence of dual-camera modules is equivalent to human eyes, which can more clearly determine the direction and distance, making automatic recognition more accurate. However, in order to make the automatic recognition of the equipment more accurate, it is necessary to evaluate the functional test after the two camera modules are assembled together. In the prior art, the fixture for testing the two camera modules is electrically connected to the PCB board and the test fixture through a probe. The probe is set on the test fixture, but the volume of a single camera module is large. After the dual camera modules are assembled, due to the existence of tolerances, it usually leads to poor contact between the probe and the test fixture and the PCB board, and the effect of the test fixture is not good. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a test fixture for a dual-camera module of xxx.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A test fixture for a dual camera module comprises: a base plate and a conductive needle assembly, wherein the base plate has a test circuit, two PCB fixing grooves for fixing a PCB are arranged on the same side of the base plate, the PCB fixing grooves are arranged on the same horizontal plane, the conductive needle assembly is arranged on the PCB fixing grooves, and the conductive needle assembly is electrically connected to the test circuit.

[0006] In one embodiment, the conductive pin assembly is a plurality of ejector pins, and the ejector pins are correspondingly supported on pad points on the PCB.

[0007] In one embodiment, one end of the ejector pin that abuts against the pad point is a supporting portion, and the supporting portion is configured as four sharp needles of equal length.

[0008] In one embodiment, the supporting portion is configured as a retractable elastic head.

[0009] In one of the embodiments, pressing pieces are respectively arranged on both sides of the PCB fixing groove on the bottom plate.

[0010] In one embodiment, the pressing member is flippably disposed on the bottom plate for taking and placing the PCB.

[0011] In one of the embodiments, a limited positioning column is provided on the PCB fixing slot.

[0012] In one embodiment, the PCB fixing groove is provided with a connector avoidance groove.

[0013] In one of the embodiments, a guide column is also provided on the base plate.

[0014] In one embodiment, the guide post is cylindrical.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] 1. The test fixture of the dual camera module of the utility model is provided with a base plate, a conductive pin assembly and a PCB fixing groove. There is a test circuit in the base plate, and two PCB fixing grooves for fixing the PCB are provided on the same side of the base plate. The PCB fixing grooves are arranged on the same horizontal plane, and the conductive pin assembly is arranged on the PCB fixing groove. The conductive pin assembly is electrically connected to the test circuit. Compared with the prior art, the contact effect between the conductive pin assembly and the PCB is more stable, which solves the tolerance problem caused by the volume of the dual camera module and has strong compatibility.

[0017] 2. The end of the ejector pin of the utility model that abuts against the pad point on the PCB is set as a retractable elastic head. When the clamping member presses the PCB, the ejector pin and the elastic head are both made of conductive material, so that the contact between the ejector pin and the PCB is more reliable, thereby improving the practicality of the test fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the structure of a test fixture for a dual camera module in one embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A is a schematic diagram of a partially enlarged structure;

[0021] Figure 3 It is a schematic diagram of the structure of the ejector pin in one embodiment of the utility model;

[0022] Figure 4 Schematic diagram of another structure of the ejector pin in one embodiment of the utility model.

[0023] Reference numerals:

[0024] The bottom plate 10 , the PCB fixing groove 11 , the ejector pin 12 , the supporting portion 121 , the pressing member 13 , the limiting and positioning column 14 , the connector avoiding groove 15 , and the guide column 16 . DETAILED DESCRIPTION

[0025] 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.

[0026] This application proposes a test fixture for a dual camera module. Please refer to Figure 1 and Figure 2 , including: a base plate 10, a conductive pin assembly and a PCB fixing groove 11, the base plate 10 has a test circuit, two PCB fixing grooves 11 for fixing the PCB are arranged on the same side of the base plate 10, the PCB fixing grooves 11 are arranged on the same horizontal plane, the conductive pin assembly is arranged on the PCB fixing groove 11, the conductive pin assembly is electrically connected to the test circuit, compared with the prior art, the contact effect between the conductive pin assembly and the PCB is more stable, the tolerance problem caused by the volume of the dual-camera module is solved, and the compatibility is strong.

[0027] Specifically, see Figure 2 The conductive pin assembly is a plurality of ejector pins 12, and the ejector pins 12 protrude from the PCB fixing slot 11, and the ejector pins 12 correspond to the pad points on the PCB. Among them, one end of the ejector pin 12 that abuts against the pad point on the PCB is provided with a retractable elastic head, and when the clamping member 13 clamps the PCB, the ejector pin 12 and the elastic head are both made of conductive material, so that the contact between the ejector pin 12 and the PCB is more reliable, thereby improving the practicality of the test fixture. Furthermore, since the thickness of the PCB is relatively small, a hand-starting groove is provided on the edge of the PCB fixing slot 11, and the hand-starting groove is connected to the PCB fixing slot 11, so that the tester can pick up the PCB fixed in the PCB fixing slot 11 to improve work efficiency. For further information, please refer to Figure 3 and Figure 4 The end of the ejector pin 12 that contacts the pad point is a support portion 121. The support portion 121 is configured as four sharp needles of equal length. One end of the sharp needle is fixed on the ejector pin, and the other end is configured as a pointed head. Compared with one sharp needle in the prior art, the four sharp needles can enhance the wear resistance of the ejector pin and have excellent contact with the pad point. The angle range of the spike is set to 30° to 60°. Furthermore, the support portion extends three spikes.

[0028] In one embodiment, see Figure 1, the bottom plate 10 is provided with clamping pieces 13 on both sides of the PCB fixing groove 11, so that the PCB can be tightly abutted against the ejector pin 12, further ensuring good contact of the electrical connection. Among them, the clamping piece 13 is flippably arranged on the bottom plate 10. After the test process is completed, the clamping piece 13 is flipped along the edge of the bottom plate 10 to facilitate the removal of the PCB. And the clamping piece 13 is screwed to the bottom plate 10, which strengthens the stability between the clamping piece 13 and the bottom plate 10. In addition, a limited positioning column 14 is provided on the PCB fixing groove 11 to prevent the PCB and the ejector pin 12 from being out of position, resulting in poor contact, thereby once again ensuring the conductive effect and reducing the defective rate during the test process.

[0029] In one embodiment, a connector is connected to the PCB, and the existence of the connector makes it difficult for the PCB to fit well in the PCB fixing groove 11. In order to further ensure the contact effect, please refer to Figure 1 The PCB fixing groove 11 is provided with a connector avoidance groove 15, and the connector is placed in the connector avoidance groove 15. In addition, a guide column 16 is also provided on the bottom plate 10 to ensure that the pressing member 13 can flatten the two PCBs so that the two PCBs are on the same horizontal plane. Preferably, the guide column 16 is cylindrical.

[0030] 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 test fixture for a dual camera module, characterized in that: include: A base plate and a conductive needle assembly, wherein a test circuit is arranged in the base plate, two PCB fixing grooves for fixing the PCB are arranged on the same side of the base plate, the PCB fixing grooves are arranged on the same horizontal plane, the conductive needle assembly is arranged on the PCB fixing grooves, and the conductive needle assembly is electrically connected to the test circuit.

2. The test fixture for the dual camera module according to claim 1, characterized in that: The conductive pin assembly is a plurality of ejector pins, and the ejector pins are corresponding to the pad points on the PCB.

3. The test fixture for the dual camera module according to claim 2, characterized in that: One end of the ejector pin that contacts the pad point is a support portion, and the support portion is configured to be four sharp needles of equal length.

4. The test fixture for the dual camera module according to claim 3, characterized in that: The supporting portion is configured as a retractable elastic head.

5. The test fixture for the dual camera module according to claim 1, characterized in that: The bottom plate is provided with pressing pieces on both sides of the PCB fixing groove.

6. The test fixture for the dual camera module according to claim 5, characterized in that: The pressing member is flippably arranged on the bottom plate for taking and placing the PCB.

7. The test fixture for the dual camera module according to claim 1, characterized in that: A limited positioning column is arranged on the PCB fixing groove.

8. The test fixture for the dual camera module according to claim 1, characterized in that: The PCB fixing groove is provided with a connector avoidance groove.

9. The test fixture for the dual camera module according to claim 1, characterized in that: The bottom plate is also provided with guide columns.

10. The test fixture for the dual camera module according to claim 9, characterized in that: The guide column is cylindrical.

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