Novel camera temperature drift improvement test fixture

Abstract

The utility model relates to camera temperature drift test fixture technical field provides a new type improvement camera temperature drift test fixture, including jig body, the top of jig body is provided with sealing assembly, the middle part of jig body top is set up to have installed groove, the inside outside of installed groove is provided with first heating part, the middle part of jig body inside is provided with fixed structure, the fixed structure includes lifting assembly and clamping assembly, in the utility model, the staff according to the model of camera pulls down fixed block, fixed block drives lifting rod to move up and down, lifting rod drives the movement of the clamping block, and the clamping block is extruded with fixed column, so that the clamping block enters the contraction in the storage groove, and when the clamping block is aligned with the clamping groove, the second spring will push the clamping block into the clamping groove, thereby positioning the position of the lifting rod, so that after moving to the specified position, the clamping block enters the corresponding clamping groove, and the fixed block is supported and fixed, so that the camera test of different thickness is adapted.

Description

Technical Field

[0001] This utility model relates to the field of camera temperature drift testing fixture technology, and in particular to a novel camera temperature drift testing fixture. Background Technology

[0002] The new camera temperature drift test fixture is a combination of specialized tools or equipment designed to test the performance changes of cameras under different temperature environments, especially to accurately measure and evaluate temperature drift. By simulating various temperature environments and accurately monitoring the performance of cameras under these environments, it helps R&D personnel and manufacturers to evaluate and improve the temperature drift characteristics of cameras, ensuring that cameras can work stably and reliably under various actual operating temperatures.

[0003] As disclosed in CN221305987U, this utility model discloses an HR fixture for testing temperature drift. Its features include: a fixture body in the shape of a disc with a set of opposing beveled edges; a lens positioning hole in the center of the fixture body; a heating coil embedded in the upper part of the lens positioning hole; a wire placement groove on the top surface of the fixture body connecting to the lens positioning hole; an annular retaining ring on the top surface of the fixture body, coaxially arranged with the lens positioning hole; and an annular cavity on the bottom surface of the fixture body, coaxial with the lens positioning hole. The beneficial effects of this utility model include: the fixture allows for the adjustment and control of the temperature of the lens under test, enabling the testing equipment to measure the instability of the camera module caused by temperature, thus improving reliability and data accuracy.

[0004] However, in existing technologies, some module manufacturers shorten the testing time by reducing the camera frame rate, allowing the camera to quickly reach a stable state at a lower temperature, thereby suppressing temperature drift. However, the actual frame rate used by the device is inconsistent with the frame rate during testing. Furthermore, during testing, the temperature dissipates rapidly due to the open testing area, making it difficult to stabilize within the specified temperature range, thus affecting the test data. Secondly, the camera mounting bracket is fixed, making it unsuitable for cameras of different thicknesses, causing the module's optical axis to misalign with the test template, thus affecting the test. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art where the actual frame rate of the whole machine is inconsistent with the frame rate during testing. Furthermore, during testing, the test area is in an open state, so the temperature dissipates quickly and is difficult to stabilize within the specified temperature range, thus affecting the test data. Secondly, the camera mounting bracket is in a fixed state, so it cannot be adapted to cameras of different thicknesses, making it impossible to align the optical axis of the module with the test plate, thus affecting the test.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel camera temperature drift testing fixture, comprising a fixture body, a sealing component at the top of the fixture body, an installation groove in the middle of the top of the fixture body, a first heating element disposed on the inner and outer sides of the installation groove, a fixing structure disposed in the middle of the interior of the fixture body, the fixing structure comprising a lifting component and a clamping component, and a control center fixedly connected to one side of the fixture body.

[0007] In a preferred embodiment, the first heating element includes a second heating plate, which is fixed to the inner wall of the control center. A second control block is fixedly connected to one side of the second heating plate, and the second control block is electrically connected to the control center.

[0008] In a preferred embodiment, the lifting assembly includes a fixed column, which is fixed to one side of the fixture body located inside the control center. A lifting groove is provided in the middle of the fixed column, and slots are provided on both sides of the lifting groove at equal intervals. A lifting rod is slidably connected inside the lifting groove.

[0009] In a preferred embodiment, storage slots are provided on both sides of the bottom end of the lifting rod. A second spring is fixedly connected inside the storage slot. A locking block is fixedly connected to the side of the second spring near the locking slot. The locking block is slidably connected to the storage slot and engages with the locking slot.

[0010] In a preferred embodiment, the clamping assembly includes a fixing block, which is fixed to the top of a fixing post. A movable groove is provided on one side of the fixing block, and a limiting rod is fixedly connected inside the movable groove. A clamping plate is slidably connected to the middle of the limiting rod, and a first spring is fixedly connected to the side of the clamping plate that is far apart from each other. The first spring is sleeved on the outer wall of the limiting rod, and one end is fixedly connected to the fixing block.

[0011] In a preferred embodiment, the sealing assembly includes a sealing cover, which is rotatably connected to the fixture body. A groove is formed in the middle of the sealing cover near the fixture body, and a first heating element is disposed inside the groove. A first control block is fixedly connected to the side of the first heating element away from the fixture body, and the first control block is electrically connected to a control center.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, the operator pulls the fixing block up and down according to the camera model. The fixing block drives the lifting rod to move up and down, and the lifting rod drives the locking block to move. The locking block is pressed against the fixing post, causing the locking block to retract into the storage slot. When the locking block is aligned with the slot, the second spring pushes the locking block into the slot, thereby positioning the lifting rod. Therefore, after moving to the designated position, the locking block enters the corresponding slot, supporting and fixing the fixing block. Thus, it is suitable for testing cameras of different thicknesses.

[0014] After the camera is clamped and fixed by the clamping assembly, the sealing cover is deflected to close with the top of the fixture body. The temperature value can be finely adjusted according to different cameras by controlling the second control block and the first control block through the control center, so as to match the camera temperature after the test is stable. In addition, by setting the sealing cover, the first heating element can be preheated in advance before the test. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a novel improved camera temperature drift testing fixture provided by this utility model;

[0016] Figure 2 A schematic diagram of the unfolded structure of a novel camera temperature drift testing fixture provided by this utility model;

[0017] Figure 3 A front cross-sectional view of a novel improved camera temperature drift testing fixture provided by this utility model;

[0018] Figure 4 A side cross-sectional view of a novel camera temperature drift testing fixture provided by this utility model;

[0019] Figure 5 A schematic diagram of the fixing structure of a novel improved camera temperature drift testing fixture provided by this utility model;

[0020] Figure 6 This utility model provides a novel camera temperature drift testing fixture. Figure 5 Enlarged structural diagram at point A in the diagram;

[0021] Legend:

[0022] 1. Fixture body; 11. Control center; 12. Mounting slot; 21. Sealing cover; 22. Groove; 23. First heating element; 24. First control block; 31. Second heating element; 32. Second control block; 41. Fixing block; 411. Moving slot; 412. Limiting rod; 413. Clamping plate; 414. First spring; 42. Fixing column; 421. Lifting slot; 422. Slot; 423. Lifting rod; 424. Storage slot; 425. Second spring; 426. Locking block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a novel camera temperature drift testing fixture, including a fixture body 1, a sealing component at the top of the fixture body 1, an installation groove 12 in the middle of the top of the fixture body 1, a first heating element in the inner and outer sides of the installation groove 12, a fixing structure in the middle of the interior of the fixture body 1, the fixing structure including a lifting component and a clamping component, and a control center 11 fixedly connected to one side of the fixture body 1.

[0025] like Figure 3 - Figure 6 As shown, the first heating element includes a second heating element 31, which is fixed to the inner wall of the control center 11. A second control block 32 is fixedly connected to one side of the second heating element 31 and is electrically connected to the control center 11. The lifting assembly includes a fixing column 42, which is fixed to one side of the fixture body 1 located inside the control center 11. A lifting groove 421 is provided in the middle of the fixing column 42. Slots 422 are equidistantly arranged on both sides inside the lifting groove 421. A lifting rod 423 is slidably connected inside the lifting groove 421. Storage slots 424 are provided on both sides of the bottom end of the lifting rod 423. The inside of the storage slots 424... A second spring 425 is fixedly connected. A locking block 426 is fixedly connected to the side of the second spring 425 near the slot 422. The locking block 426 is slidably connected to the storage slot 424 and engages with the slot 422. The clamping assembly includes a fixing block 41, which is fixed to the top of the fixing post 42. A moving slot 411 is provided on one side of the fixing block 41. A limiting rod 412 is fixedly connected inside the moving slot 411. A clamping plate 413 is slidably connected to the middle of the limiting rod 412. A first spring 414 is fixedly connected to the side of the clamping plate 413 that is far away from each other. The first spring 414 is sleeved on the outer wall of the limiting rod 412, and one end is fixedly connected to the fixing block 41.

[0026] In this embodiment, the operator separates the clamping plates 413 from each other, and the first spring 414 pushes the first spring 414 to compress. Then, the test piece is placed in the middle of the clamping plate 413, and the first spring 414 pushes the clamping plate 413 to clamp and fix the test piece. Subsequently, the operator pulls the fixing block 41 up and down according to the camera model. The fixing block 41 drives the lifting rod 423 to move up and down. The lifting rod 423 drives the locking block 426 to move. The locking block 426 is pressed against the fixing post 42, so that the locking block 426 enters the storage groove 424 and retracts. When the locking block 426 is aligned with the slot 422, the second spring 425 will push the locking block 426 into the slot 422, thereby positioning the lifting rod 423. Therefore, after moving to the designated position, the locking block 426 enters the corresponding slot 422 and supports and fixes the fixing block 41, thus adapting to the testing of cameras of different thicknesses.

[0027] like Figure 1 - Figure 3 As shown, the sealing assembly includes a sealing cover 21, which is rotatably connected to the fixture body 1. A groove 22 is provided in the middle of the side of the sealing cover 21 near the fixture body 1. A first heating element 23 is provided inside the groove 22. A first control block 24 is fixedly connected to the side of the first heating element 23 away from the fixture body 1. The first control block 24 is electrically connected to the control center 11.

[0028] In this embodiment, after the camera is clamped and fixed by the clamping assembly, the sealing cover 21 is deflected to close with the top of the fixture body 1. The second control block 32 and the first control block 24 are controlled by the control center 11. The temperature value can be finely adjusted according to different cameras to match the camera temperature after the test is stable. In addition, by setting the sealing cover 21, the first heating element 23 can be preheated in advance before the test.

[0029] Working principle: First, the operator separates the clamping plates 413, and the first spring 414 is pushed to compress the first spring 414. Then, the test piece is placed in the middle of the clamping plates 413, and the first spring 414 pushes the clamping plates 413 to clamp and fix the test piece. Then, the operator pulls the fixing block 41 up and down according to the camera model. The fixing block 41 drives the lifting rod 423 to move up and down. The lifting rod 423 drives the locking block 426 to move. The locking block 426 is pressed against the fixing post 42, causing the locking block 426 to retract into the storage groove 424. When the locking block 426 is aligned with the slot 422, the second spring 425 will push the locking block 426 to retract. 26 enters the slot 422, thereby positioning the lifting rod 423. Therefore, after moving to the designated position, the locking block 426 enters the corresponding slot 422 to support and fix the fixing block 41. This adapts to testing cameras of different thicknesses. After the camera is clamped and fixed by the clamping assembly, the sealing cover 21 is deflected to close with the top of the fixture body 1. The control center 11 controls the second control block 32 and the first control block 24. The temperature value can be finely adjusted according to different cameras to match the camera temperature after the test is stable. Furthermore, by setting the sealing cover 21, the first heating element 23 can be preheated before the test.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel camera temperature drift improvement test fixture, comprising a fixture body (1), characterized in that: The top of the fixture body (1) is provided with a sealing component, and the middle of the top of the fixture body (1) is provided with an installation groove (12). The inner and outer sides of the installation groove (12) are provided with a first heating element. The middle of the interior of the fixture body (1) is provided with a fixing structure, which includes a lifting component and a clamping component. A control center (11) is fixedly connected to one side of the fixture body (1).

2. The novel camera temperature drift improvement test fixture of claim 1, wherein: The first heating element includes a second heating element (31), which is fixed to the inner wall of the control center (11). A second control block (32) is fixedly connected to one side of the second heating element (31), and the second control block (32) is electrically connected to the control center (11).

3. The novel camera temperature drift improvement test fixture of claim 1, wherein: The lifting assembly includes a fixed column (42), which is fixed to one side of the fixture body (1) located inside the control center (11). A lifting groove (421) is provided in the middle of the fixed column (42), and slots (422) are provided on both sides of the lifting groove (421) at equal intervals. A lifting rod (423) is slidably connected inside the lifting groove (421).

4. A novel camera temperature drift testing fixture according to claim 3, characterized in that: The lifting rod (423) has storage slots (424) on both sides of its bottom end. A second spring (425) is fixedly connected inside the storage slot (424). A locking block (426) is fixedly connected to the side of the second spring (425) near the locking slot (422). The locking block (426) is slidably connected to the storage slot (424) and engages with the locking slot (422).

5. A novel camera temperature drift testing fixture according to claim 1, characterized in that: The clamping assembly includes a fixing block (41) fixed to the top of a fixing post (42). A moving groove (411) is provided on one side of the fixing block (41). A limiting rod (412) is fixedly connected inside the moving groove (411). A clamping plate (413) is slidably connected to the middle of the limiting rod (412). A first spring (414) is fixedly connected to the side of the clamping plate (413) that is far apart from each other. The first spring (414) is sleeved on the outer wall of the limiting rod (412) and one end is fixedly connected to the fixing block (41).

6. A novel camera temperature drift testing fixture according to claim 1, characterized in that: The sealing assembly includes a sealing cover (21), which is rotatably connected to the fixture body (1). A groove (22) is provided in the middle of the side of the sealing cover (21) near the fixture body (1). A first heating element (23) is provided inside the groove (22). A first control block (24) is fixedly connected to the side of the first heating element (23) away from the fixture body (1). The first control block (24) is electrically connected to the control center (11).

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