A test fixture and camera test component

Abstract

The present application relates to a test fixture and a camera test assembly, wherein the camera module comprises a housing having a test hole, a camera body mounted on the housing, and a circuit board mounted in the housing, wherein the circuit board is electrically connected to the camera body and has a plurality of gold fingers. The test fixture comprises a test body, a connector mounted on the test body, and a metal contact, wherein the connector comprises a plug-in bracket fixedly connected to the mounting seat and a pair of buckles fixedly connected to both sides of the plug-in bracket, respectively, wherein the plug-in bracket is inserted into the test hole of the camera module, the buckle is clamped in the test hole, and the metal contact is inserted into the test hole with the plug-in bracket and abuts against the gold fingers of the circuit board. This arrangement not only eliminates the connector used for debugging on the traditional circuit board, but also reduces the risk of the software data of the camera module being tampered with.

Description

Technical Field

[0001] The utility model relates to the technical field of camera testing, in particular to a testing fixture and a camera testing component. Background Art

[0002] With the development of technology and economy, the trend of automobile automation and intelligence makes vehicle camera modules more and more important. Today's drivers are increasingly relying on vehicle cameras for assisted driving, such as blind spot detection, collision warning, automatic driving, etc. With more and more cameras installed on cars, the universal design and platform design of vehicle cameras are becoming more and more important.

[0003] The infrared camera module is one of the commonly used vehicle-mounted camera modules, usually used inside the cab. The infrared camera recognizes and captures faces mainly through internal software algorithms. During the development of the software algorithm, the camera needs to be installed on the actual vehicle for installation and debugging. Therefore, in addition to the original power supply and signal exchange interfaces, a separate software debugging interface needs to be set up on the camera module.

[0004] Conventional software debugging interfaces install a separate board-side connector on the camera module, such as a MicroUSB connector, a Type-C connector, etc. Such connectors that need to meet vehicle specifications are generally expensive, resulting in an increase in the cost of the entire camera; in addition, the debugging solution that uses such a connector as a debugging interface in traditional technologies also has the risk of data being tampered with, resulting in a decrease in vehicle data security. Utility Model Content

[0005] In order to meet the testing requirements, the existing vehicle-mounted cameras have the risk of data being easily tampered with and the disadvantage of high cost. Therefore, it is necessary to provide a test fixture and a camera test component.

[0006] A test fixture, used for connecting a camera module, comprising:

[0007] Test subject;

[0008] A connector, the connector comprising a mounting base mounted on the test body, a plug-in bracket fixedly connected to the mounting base, and a pair of buckles respectively fixedly connected to both sides of the plug-in bracket, the plug-in bracket is used to be plugged into the test hole of the camera module, and the buckle is used to be snapped into the test hole of the camera module; and

[0009] A metal contact piece is installed on the plug-in bracket and electrically connected to the test body, and the metal contact piece is used to abut against the gold finger of the circuit board of the camera module.

[0010] With such a configuration, this structure eliminates the Type-C, Micro-USB and other connectors on the original circuit board used to connect the test fixture, preventing people other than the testers from connecting to the camera module through conventional connectors and tampering with the camera data, and preventing the camera module from being damaged or malfunctioning due to easy tampering with the software data. At the same time, since the connector used for testing in the prior art is eliminated, the production cost of the entire camera module is also reduced.

[0011] In one embodiment, the buckle includes a connecting portion extending from the mounting seat along the insertion direction of the plug-in bracket and a clamping portion extending from the connecting portion along a clamping direction perpendicular to the insertion direction of the plug-in bracket, and the clamping portion is used to abut against the inner wall of the outer shell of the camera module along the opposite direction of the insertion direction of the plug-in bracket.

[0012] With such arrangement, the clamping portion restricts the buckle from coming out in the direction opposite to the insertion direction of the plug-in bracket, and it cannot come out from the test hole without external force, and the clamping is firm.

[0013] In one of the embodiments, the clamping portion has a guiding slope facing away from the mounting seat, and the guiding slope gradually approaches the connecting portion along the insertion direction of the plug-in bracket.

[0014] Such a configuration facilitates the insertion of the clip into the test hole of the camera module and prevents the clip from breaking during insertion.

[0015] In one of the embodiments, the buckle further includes a stopper portion extending from the connecting portion along the clamping direction, and the stopper portion is used to abut against an outer wall of a housing of the camera module along the insertion direction of the plug-in bracket.

[0016] With such a configuration, the clamping portion and the stop portion limit the outer shell from the insertion direction of the plug-in bracket and the opposite direction of the insertion direction of the plug-in bracket respectively, so that the outer shell of the camera module and the connector of the test fixture are firmly clamped and not easy to loosen, thereby ensuring the stability of the electrical connection between the metal contact and the circuit board during the test process.

[0017] In one of the embodiments, the test fixture further includes a pair of pressing members respectively located on both sides of the mounting seat, and the pressing member has a fixed end fixedly connected to the mounting seat and a pressing end located on a side of the buckle away from the connector.

[0018] With this arrangement, the tester can squeeze the buckle by pressing the piece, making it easier to pull the connector out of the test hole.

[0019] In one embodiment, the pressing member includes a pressing portion extending from the fixed end along the insertion direction of the plug-in bracket and arranged at intervals on the mounting seat, and a pressing portion extending from the pressing portion toward the buckle.

[0020] With such arrangement, the length of the pressing piece is increased to improve the elasticity of the pressing piece, and pressing is effortless.

[0021] In one of the embodiments, the buckle and the pressing member are respectively and integrally connected to the connecting head.

[0022] With this arrangement, the connector has a higher structural strength and is less likely to deform during repeated plugging and unplugging.

[0023] In one embodiment, the metal contact piece includes an elastic portion extending obliquely from one end of the plug-in bracket close to the mounting seat along the plug-in direction of the plug-in bracket and a bent portion extending from the elastic portion along the plug-in direction of the plug-in bracket gradually approaching the plug-in bracket.

[0024] This setting improves the smoothness of the connector and the camera module during the plug-in process. The metal contacts always abut the gold fingers of the circuit board during the entire test process, ensuring stable data transmission.

[0025] In one embodiment, the metal contact has a chamfer located at one end of the elastic portion connected to the bent portion.

[0026] This arrangement reduces the scratches on the gold fingers caused by the metal contacts and improves the smoothness of the connection between the connector and the camera module.

[0027] A camera test component, comprising:

[0028] A camera module, comprising a housing having a test hole, a camera body mounted on the housing, and a circuit board mounted in the housing, wherein the circuit board is electrically connected to the camera body and has a plurality of gold fingers corresponding to the test hole; and

[0029] In the test fixture as described above, the connector of the test fixture is used to be inserted into the test hole of the housing during testing so that the metal contact of the test fixture abuts against the gold finger.

[0030] With this setting, during actual testing, the test fixture is directly electrically connected to the gold fingers on the camera module's circuit board without the need for a connector. Therefore, anyone other than the testers cannot artificially tamper with the camera module's software data through ordinary connectors on the market, such as Type-C and MicroUSB, thus ensuring the data security of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a camera test assembly provided in this application;

[0032] Figure 2 for Figure 1 The assembly diagram of the camera test assembly shown;

[0033] Figure 3 for Figure 1 Schematic diagram of the internal structure of the camera module;

[0034] Figure 4 for Figure 1 a cross-sectional view of the camera test assembly shown;

[0035] Figure 5 for Figure 4 A partial enlarged view of the camera test assembly at position X is shown;

[0036] Figure 6 for Figure 1 A cross-sectional view of the camera test assembly shown at another viewing angle;

[0037] Figure 7 for Figure 6 A partial enlarged view of the camera test assembly at position Y is shown.

[0038] Reference numerals:

[0039] 10. Test fixture; 11. Test body; 111. Wire harness; 12. Connector; 121. Mounting seat; 122. Plug bracket; 123. Buckle; 1231. Connecting part; 1232. Snap-fit ​​part; 12321. Guide slope; 1233. Stopper; 124. Pressing piece; 12401. Fixed end; 12402. Pressing end; 1241. Pressing part; 1242. Pressing part; 13. Metal contact piece; 131. Elastic part; 132. Bending part; 133. Chamfer; 20. Camera module; 21. Housing; 211. Test hole; 22. Circuit board; 221. Gold finger. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0046] With the development of technology and economy, the trend of automobile automation and intelligence makes vehicle camera modules more and more important. Today's drivers are increasingly relying on vehicle cameras for assisted driving, such as blind spot detection, collision warning, automatic driving, etc. With more and more cameras installed on cars, the universal design and platform design of vehicle cameras are becoming more and more important.

[0047] The infrared camera module is one of the commonly used vehicle-mounted camera modules, usually used inside the cab. The infrared camera recognizes and captures faces mainly through internal software algorithms. During the development of the software algorithm, the camera needs to be installed on the actual vehicle for installation and debugging. Therefore, in addition to the original power supply and signal exchange interfaces, a separate software debugging interface needs to be set up on the camera module.

[0048] Conventional software debugging interfaces install a separate board-side connector on the camera module, such as a MicroUSB connector, a Type-C connector, etc. Such connectors that need to meet vehicle specifications are generally expensive, resulting in an increase in the cost of the entire camera; in addition, the debugging solution that uses such a connector as a debugging interface in traditional technologies also has the risk of data being tampered with, resulting in a decrease in vehicle data security.

[0049] Based on this, it is necessary to provide a test fixture 10 and a camera test assembly that can reduce the camera production cost and protect the security of vehicle data.

[0050] See also Figure 1-3 , Figure 1 is a structural schematic diagram of a camera test assembly in an embodiment of the utility model, Figure 2 for Figure 1 The assembly diagram of the camera test component in the figure is as follows: Figure 3 for Figure 1 Schematic diagram of the internal structure of the camera module 20.

[0051] The camera test assembly provided in the present application includes a camera module 20 and a test fixture 10. The camera module 20 includes a housing 21 having a test hole 211, a camera body (not shown) mounted on the housing 21, and a circuit board 22 mounted in the housing 21, wherein the circuit board 22 is electrically connected to the camera body and has a plurality of gold fingers 221. The test fixture 10 includes a test body 11, a connector 12 installed on the test body 11, and a metal contact 13. It is worth noting that the figure only shows the wiring harness 111 of the test body 11. The connector 12 includes a plug-in bracket 122 fixedly connected to the mounting base 121 and a pair of clips 123 fixedly connected to both sides of the plug-in bracket 122. The plug-in bracket 122 is inserted into the test hole 211 of the camera module 20, and the clip 123 is snapped into the test hole 211. The metal contact 13 is inserted into the test hole 211 with the plug-in bracket 122 and abuts against the gold finger 221 of the circuit board 22. The other end of the metal contact 13 is electrically connected to the wiring harness 111 of the test body 11. This structure eliminates the type-c, Micro-USB and other connectors on the original circuit board 22 used to connect the test fixture 10, avoids connecting the camera module 20 through a conventional connector and tampering with the camera data, and prevents the camera module 20 from being damaged or malfunctioning due to easy tampering with the software data. At the same time, since the connector used for testing in the prior art is eliminated, the production cost of the entire camera module 20 is also reduced.

[0052] See also Figure 4 and Figure 5 , Figure 4 for Figure 1 A cross-sectional view of the camera test assembly shown, Figure 5 for Figure 4 A partial enlarged view of the camera test assembly at position X is shown.

[0053] Specifically, in an embodiment provided in the present application, the buckle 123 includes a connecting portion 1231 and a clamping portion 1232, wherein the connecting portion 1231 extends from the mounting seat 121 along the insertion direction of the plug-in bracket and is arranged at intervals with the plug-in bracket 122, and the clamping portion 1232 extends along the clamping direction perpendicular to the insertion direction and abuts against the inner wall of the housing 21 of the camera module 20. The clamping portion 1232 restricts the buckle 123 from being disengaged in the opposite direction of the insertion direction, and cannot be disengaged from the test hole 211 without external force, and the clamping is firm. Further, the clamping portion 1232 has a guiding inclined surface 12321 away from the mounting seat 121, and the guiding inclined surface 12321 gradually approaches the connecting portion 1231 along the insertion direction, so that the buckle 123 is conveniently inserted into the test hole 211 of the camera module 20, and the buckle 123 is prevented from breaking during insertion.

[0054] Furthermore, the buckle 123 also includes a stopper 1233 extending from the connecting portion 1231 along the clamping direction, and the stopper 1233 is used to abut against the outer wall of the housing 21 of the camera module 20 along the insertion direction. The clamping portion 1232 and the stopper 1233 limit the housing 21 from the insertion direction and the opposite direction of the insertion direction, respectively, so that the housing 21 of the camera module 20 and the connector 12 of the test fixture 10 are firmly clamped and not easy to loosen, thereby ensuring the stability of the electrical connection between the metal contact 13 and the circuit board 22 during the test process. As an optional embodiment, a stopper block for stopping the outer wall of the housing 21 can also be provided on the plug-in bracket 122, as long as the positions of the stopper block and the stopper 1233 do not interfere with each other.

[0055] Furthermore, in an embodiment provided in the present application, the test fixture 10 also includes a pair of pressing pieces 124 respectively located on both sides of the mounting seat 121, and the pressing piece 124 has a fixed end 12401 fixedly connected to the mounting seat 121 and a pressing end 12402 located on the side of the buckle 123 away from the connector 12. In this way, the tester squeezes the buckle 123 through the pressing piece 124, which facilitates the removal of the connector 12 from the test hole 211. Specifically, the pressing piece 124 includes a pressing portion 1241 extending from the fixed end 12401 along the insertion direction and arranged at intervals on the mounting seat 121, and a pressing portion 1242 extending from the pressing portion 1241 toward the buckle 123, thereby increasing the length of the pressing piece 124 to improve the elasticity of the pressing piece 124 and saving effort in pressing.

[0056] Optionally, in an embodiment provided in the present application, the buckle 123 and the pressing member 124 are respectively connected to the connector 12 in one piece. In this way, the connector 12 has a higher structural strength and is not easily deformed during repeated plugging and unplugging.

[0057] See also Figure 6 and Figure 7 , Figure 6 for Figure 1 A cross-sectional view of the camera test assembly from another perspective is shown. Figure 7 for Figure 6 A partial enlarged view of the camera test assembly at position Y is shown.

[0058] Optionally, in an embodiment provided in the present application, the metal contact 13 includes an elastic portion 131 extending obliquely along the insertion direction from one end of the plug-in bracket 122 close to the mounting seat 121 and a bent portion 132 extending from the elastic portion 131 along the insertion direction gradually close to the plug-in bracket 122, thereby improving the smoothness of the connector 12 and the camera module 20 during the plug-in process, and the metal contact 13 always abuts against the gold finger 221 of the circuit board 22 during the entire test process, ensuring stable data transmission. It is understandable that in other embodiments, the number of the bent portions 132 can be multiple to achieve multi-point contact between the metal contact 13 and the gold finger 221, thereby further ensuring stable data transmission.

[0059] Optionally, in an embodiment provided in the present application, the metal contact 13 has a chamfer 133 located at one end of the elastic portion 131 connected to the bent portion 132, and preferably, the chamfer 133 is arc-shaped. This reduces the scratching of the metal contact 13 on the gold finger 221 and improves the smoothness of the plugging of the connector 12 and the camera module 20.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they 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, and these 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 connecting a camera module, characterized in that: include: Test subject; A connector, the connector comprising a mounting base mounted on the test body, a plug-in bracket fixedly connected to the mounting base, and a pair of buckles respectively fixedly connected to two sides of the plug-in bracket, the plug-in bracket is used to be plugged into the test hole of the camera module, and the buckle is used to be snapped into the test hole of the camera module; as well as A metal contact piece is installed on the plug-in bracket and electrically connected to the test body, and the metal contact piece is used to abut against the gold finger of the circuit board of the camera module.

2. A test fixture according to claim 1, characterized in that: The buckle includes a connecting portion extending from the mounting seat along the insertion direction of the plug-in bracket and a clamping portion extending from the connecting portion along a clamping direction perpendicular to the insertion direction of the plug-in bracket, and the clamping portion is used to abut against the inner wall of the outer shell of the camera module along the opposite direction of the insertion direction of the plug-in bracket.

3. A test fixture according to claim 2, characterized in that: The clamping portion has a guiding inclined surface which is away from the mounting seat, and the guiding inclined surface gradually approaches the connecting portion along the inserting direction of the inserting bracket.

4. A test fixture according to claim 3, characterized in that: The buckle further includes a stopper extending from the connecting portion along the clamping direction, and the stopper is used to abut against an outer wall of a housing of the camera module along the insertion direction of the plug-in bracket.

5. A test fixture according to any one of claims 1 to 4, characterized in that: The test fixture further includes a pair of pressing members respectively located on both sides of the mounting seat, wherein the pressing member has a fixed end fixedly connected to the mounting seat and a pressing end located on a side of the buckle away from the connector.

6. A test fixture according to claim 5, characterized in that: The pressing member includes a pressing portion extending from the fixed end along the insertion direction of the plug-in bracket and arranged at intervals on the mounting seat, and a pressing portion extending from the pressing portion toward the buckle.

7. A test fixture according to claim 5, characterized in that: The buckle and the pressing member are respectively connected to the connecting head in one piece.

8. A test fixture according to claim 1, characterized in that: The metal contact piece includes an elastic portion extending obliquely from one end of the plug bracket close to the mounting seat along the plugging direction of the plug bracket and a bending portion extending from the elastic portion along the plugging direction of the plug bracket gradually approaching the plug bracket.

9. A test fixture according to claim 8, characterized in that: The metal contact has a chamfer located at one end of the elastic portion connected to the bent portion.

10. A camera test assembly, characterized in that: include: A camera module comprises a housing having a test hole, a camera body mounted on the housing, and a circuit board mounted in the housing, wherein the circuit board is electrically connected to the camera body and has a plurality of gold fingers corresponding to the test hole; and A test fixture as described in any one of claims 1 to 9, wherein the connector of the test fixture is used to be inserted into the test hole during testing so that the metal contact of the test fixture abuts against the gold finger.

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