Mobile phone light sensation and coupling auxiliary test tool

Abstract

The utility model provides an auxiliary testing tool for light sensation and coupling of a mobile phone. The auxiliary testing tool comprises a shielding box, an adjusting bracket capable of adjusting the height of a top surface, and a coupling plate, a wire outlet hole is formed in the side face of the shielding box, a light equalizing plate is arranged on the upper portion of the shielding box, a plurality of lamp tubes are arranged in the area between the light equalizing plate and the top face of the shielding box, the adjusting support is installed on a bottom plate of the shielding box, the coupling plate is horizontally installed on the adjusting support, and a tested mobile phone is placed above the coupling plate. According to the test tool, light source environment calibration and coupling test functions are combined, and flexible control of test parameters is realized through mechanical structure adjustment. The shielding box provides an electromagnetic isolation environment, the lamp tube array ensures that the illumination condition is stable, the collaborative design of the adjusting support and the coupling plate enables the mobile phone to complete verification of multiple performances in a single device, and the operation complexity and error accumulation brought by a traditional multi-device test are reduced.

Description

A mobile phone light sensing and coupling auxiliary testing fixture Technical Field

[0001] This utility model relates to the field of mobile phone testing technology, specifically to an automatic acquisition fixture for mobile phone light sensor data. Background Technology

[0002] In the mobile phone production testing process, optical sensor calibration and radio frequency coupling testing are currently implemented separately at independent workstations. Optical sensor calibration requires operators to fix the phone in a lightbox environment, manually adjust the foam pads to control the distance between the phone and the light source, and then collect raw data under different lighting conditions and record it manually. This process relies on a large number of repetitive operations and is prone to calibration errors due to distance deviations or environmental fluctuations. Radio frequency coupling testing, on the other hand, requires transferring the phone to a shielded anechoic chamber and using a coupler to connect to a comprehensive test instrument to evaluate antenna performance. During testing, the equipment position needs to be repeatedly adjusted to match signal coupling requirements. The physical isolation between the two types of tests leads to redundant equipment configuration. Therefore, there is room for optimization in terms of efficiency and cost in the existing separate testing approach. Summary of the Invention

[0003] In order to solve the technical problems in the prior art, this utility model proposes a mobile phone light sensing and coupling auxiliary testing fixture.

[0004] The technical solution adopted in this utility model is:

[0005] This utility model proposes a mobile phone light sensing and coupling auxiliary testing fixture, including: a shielding box, an adjustable bracket with an adjustable top surface height, and a coupling plate; the shielding box has a wire outlet hole on its side and a light-diffusing plate on its upper part. Multiple lamp tubes are provided in the area between the light-diffusing plate and the top surface of the shielding box. The adjustable bracket is installed on the bottom plate of the shielding box, and the coupling plate is horizontally installed on the adjustable bracket. The test mobile phone is placed on top of the coupling plate.

[0006] The adjusting bracket includes: a bracket base mounted on the bottom plate of the shielding box, a cross linkage assembly mounted on the bracket base with adjustable cross angle, a bracket top plate horizontally mounted on the top of the cross linkage assembly, and an adjusting component for adjusting the angle of the cross linkage to change the height of the bracket top plate.

[0007] Furthermore, on the surface of the support base opposite to the top plate of the support, near one end, there are four rotating connecting seats arranged in pairs, and near the other end, there are four sliding seats with transverse sliding grooves arranged in pairs. A connecting rod is arranged between each pair of sliding seats, and the connecting rod can slide and rotate along the sliding groove.

[0008] Furthermore, the cross linkage assembly includes: two first linkages and two second linkages, the second linkages intersecting the first linkages and being rotatably connected at the intersection; the lower ends of the two first linkages are rotatably connected to two rotating connecting seats on the bracket base, and the upper ends are connected to connecting rods on the sliding groove seat of the bracket top plate; the upper ends of the two first linkages are rotatably connected to two rotating connecting seats on the bottom surface of the bracket top plate, and the lower ends are connected to connecting rods on the sliding groove seat of the support base plate.

[0009] The adjustment components include:

[0010] A pair of lead screw seats are disposed on the bottom surface of the top plate of the bracket;

[0011] A lead screw, one end of which is mounted on one of the lead screw seats, and the other end of which passes through another lead screw seat and extends beyond the bottom surface of the top plate of the bracket;

[0012] The nut seat is threaded onto the lead screw and has a through hole for the connecting rod to pass through the slide seat on the top plate of the bracket;

[0013] A hand crank is installed at the other end of the lead screw. Rotating the lead screw with the hand crank causes the nut seat to move along the lead screw, thereby causing the connecting rod on the slide seat of the bracket top plate to move along the slide groove to adjust the angle of the cross linkage assembly.

[0014] Furthermore, the upper surface of the bracket top plate is provided with a first groove for mounting the coupling plate and a first wire groove communicating with the first groove.

[0015] Furthermore, the top plate of the bracket is also provided with a mobile phone base, and the mobile phone base has a placement opening for placing a test mobile phone at the position corresponding to the coupling plate.

[0016] Furthermore, the bottom surface of the shielding box is provided with positioning protrusions arranged in an array, and the bottom surface of the support base is provided with positioning grooves corresponding to the positioning protrusions.

[0017] Compared with existing technologies, the testing fixture of this invention combines light source environment calibration with coupling testing functions, and achieves flexible control of test parameters through mechanical structure adjustment. The shielding box provides an electromagnetic isolation environment, the lamp array ensures stable illumination conditions, and the coordinated design of the adjustment bracket and coupling plate enables the mobile phone to complete multiple performance verifications in a single device, reducing the operational complexity and error accumulation caused by traditional multi-device testing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 is a half-sectional view of the shielding box in an embodiment of this utility model;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the removed adjustment bracket in an embodiment of this utility model;

[0022] 1. Shielding box;

[0023] 12. Diffusion plate; 13. Lamp tube;

[0024] 2. Adjust the support bracket;

[0025] 21. Support base; 23. Support top plate; 25. Rotary connecting seat; 26. Slide seat; 27. Connecting rod; 28. First connecting rod; 29. ​​Second connecting rod; 30. Lead screw seat; 31. Lead screw; 32. Nut seat; 33. Hand crank;

[0026] 4. Phone stand;

[0027] 5. Test the phone. Detailed Implementation

[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0030] As shown in Figures 1 to 3, this utility model proposes a mobile phone light sensing and coupling auxiliary testing fixture, including: a shielding box 1, an adjustment bracket 2, and a coupling plate (its position is obscured and not shown in the figures). Wherein:

[0031] The shielding box 1 has a cable outlet hole on its side for cable entry and exit, and a light distribution plate 12 is installed on its upper part. A lighting area is formed between the light distribution plate 12 and the top surface of the shielding box 1, where multiple lamps 13 are arranged in parallel to create a uniform light source environment. The bottom plate inside the shielding box 1 serves as a supporting base, and an adjustable bracket 2 is installed on the surface of the bottom plate. Its structural design allows for adjustable top height. A coupling plate is horizontally embedded in the top of the adjustable bracket 2, providing a base for placing the test mobile phone 5.

[0032] The adjustable bracket 2, through its height adjustment function, can change the vertical distance between the screen of the test mobile phone 5 and the light-diffusing plate 12, thereby adapting to the light-sensing testing requirements of different mobile phone models. The coupling plate, as an independent module integrated into the testing fixture, introduces interference signals into the device under test in a non-contact manner to evaluate its anti-interference capability or signal transmission characteristics. By combining the height adjustment of the adjustable bracket 2 with the auxiliary functions of the coupling plate, the testing process can complete both optical performance evaluation and wireless communication performance testing.

[0033] This testing fixture combines light source environment calibration with coupling testing functions, and achieves flexible control of test parameters through mechanical structure adjustment. The shielding box 1 provides an electromagnetic isolation environment, the lamp array 13 ensures stable illumination conditions, and the coordinated design of the adjustment bracket 2 and the coupling plate enables the mobile phone to complete multiple performance verifications in a single device, reducing the operational complexity and error accumulation caused by traditional multi-device testing.

[0034] The specific structure of the adjusting bracket 2 includes: a bracket base 21, a cross linkage assembly, a bracket top plate 23, and an adjusting assembly. The bracket base 21 is fixed to the surface of the base plate of the shielding box 1 with fasteners, serving as the supporting foundation for the entire adjusting structure. The cross linkage assembly consists of two sets of symmetrically arranged linkages, with their bottom ends hinged to the bracket base 21 and their top ends movably connected to the bracket top plate 23. Adjusting the cross angle of the two sets of linkages allows for the lifting and lowering of the bracket top plate 23. The adjusting assembly can be driven by a knob or electrically, controlling the height displacement of the bracket top plate 23 by changing the cross angle of the linkages, thereby causing the vertical position of the coupling plate to change.

[0035] The hinge point design of the cross linkage assembly allows the linkage to rotate freely within a set range. Combined with the fine-tuning function of the adjustment assembly, the distance between the test phone 5 screen and the light-diffusing plate 12 can be precisely controlled. The horizontal mounting surface of the bracket top plate 23 provides stable support for the coupling plate and the test phone 5, ensuring that the coupling plate remains horizontal during adjustment. This structure converts the adjustment operation into linear displacement through a mechanical linkage principle, while ensuring the stability and repeatability of the adjustment process.

[0036] In a specific embodiment, the connection structure between the support base 21 and the support top plate 23 is further optimized as follows: two rotating connecting seats 25 are symmetrically arranged on the top surface of the support base 21 near one end, and two rotating connecting seats 25 are also symmetrically arranged on the corresponding position on the bottom surface of the support top plate 23, forming a four-point hinged layout aligned vertically. Four sets of transverse sliding seats 26 are provided at the other end, each set containing a parallel extending sliding groove structure, symmetrically distributed with adjacent sliding seats 26. A connecting rod 27 is embedded between each pair of sliding seats 26. This connecting rod 27 achieves free horizontal sliding through the sliding groove, while allowing rotational movement of its own axis, used to transmit adjustment torque and maintain dynamic adaptation between the connecting rod and the support body.

[0037] The cross-link assembly specifically includes two first links 28 and two second links 29, forming a cross frame. The two second links 29 are hinged at the intersection via a rotating connection point, forming a rotatable cross arm structure. The lower ends of the two first links 28 are respectively hinged to two rotating connecting seats 25 on the top surface of the support base 21, while their upper ends form a movable support relationship with the connecting rod 27 of the slide seat 26 of the support top plate 23. Simultaneously, the upper ends of the two first links 28 extend to the bottom surface of the support top plate 23, where they are hinged and fixed via two rotating connecting seats 25. Their lower ends form a movable support with the connecting rod 27 within the slide seat 26 of the support base. This design, through the combination of cross-hinged links and slide guides, allows the vertical displacement and horizontal stability of the support top plate 23 to be achieved simultaneously.

[0038] The sliding fit design of the connecting rod 27 constrains lateral displacement through the limiting effect of the slide groove, preventing skewness during adjustment. The symmetrical distribution of the rotating connecting seat 25 and the slide groove seat 26 ensures the uniform distribution of force on the connecting rod, avoiding structural deformation caused by local stress concentration.

[0039] The adjustment assembly specifically consists of a lead screw 31 seat 30, a lead screw 31, a nut seat 32, and a hand crank 33. The lead screw 31 seats 30 are arranged in pairs on the bottom surface of the support top plate 23, symmetrically distributed laterally. One end of the lead screw 31 is axially constrained within one of the lead screw 31 seats 30, while the other end passes through the other lead screw 31 seat 30 and extends to the outside of the support top plate 23, forming a free end that can be manually operated. The nut seat 32 is threaded onto the lead screw 31 and has a through hole at its center, which forms a clearance fit with the connecting rod 27 on the slide rail seat 26 of the support top plate.

[0040] The hand crank 33 is mounted on the extended end of the lead screw 31 via a key connection or interference fit. Rotating the hand crank 33 drives the lead screw 31 to rotate. The rotational motion of the lead screw 31 is converted into linear displacement of the nut seat 32 along the axial direction of the lead screw 31, which drives the bottom connecting rod 27 to move along the groove in the sliding seat 26. The amount of movement of the connecting rod 27 is precisely controlled by the correspondence between the thread lead and the number of revolutions of the hand crank 33, thereby changing the cross angle between the first link 28 and the second link 29 in the cross linkage assembly. By converting manual operation into mechanical displacement, the height adjustment process becomes intuitive and controllable. The rigid connection between the lead screw seat 30 and the nut seat 32 ensures that the adjusting torque is effectively transmitted to the cross linkage assembly, maintaining structural stability during the adjustment process.

[0041] In a specific embodiment, the upper surface of the bracket top plate 23 is provided with a structure including: a first groove for mounting the coupling plate and a first cable passage groove. The geometry of the first groove matches the shape of the coupling plate, providing a positioning reference surface for the coupling plate. The first cable passage groove extends from the edge of the first groove to the side of the top plate, forming a cable channel, so that the connecting cable between the coupling plate and the test equipment can be neatly stored and avoids interference with the placement posture of the test mobile phone 5.

[0042] The phone base 4 is integrated into the surface of the top plate 23 of the bracket through a fixed structure. Its layout avoids the first recessed area to maintain spatial compatibility between the coupling plate and the test phone 5. The phone base 4 has a placement opening inside that corresponds to the function of the coupling plate. The shape of this opening is designed according to the mainstream mobile phone shape, and the edges are provided with anti-slip texture or elastic buffer layer to constrain the horizontal displacement of the test phone 5 and reduce vibration interference, ensuring that the contact area of ​​the test phone 5 is completely aligned with the functional surface of the coupling plate, thereby meeting the synchronous requirements of signal transmission and light sensing detection.

[0043] The positioning protrusions on the bottom plate inside the shielding box 1 are arranged at regular intervals. The tops of the protrusions are conical or columnar structures, used to embed into the corresponding positioning grooves on the bottom surface of the support base 21. The shape of the positioning grooves matches the outer contour of the protrusions, forming a mechanical limiting fit. This design improves the installation efficiency and repeatability of the test fixture through a standardized positioning interface. The array layout of the positioning protrusions is compatible with the fine-tuning requirements of different installation scenarios. The plug-in connection between the grooves and protrusions simplifies the assembly process, reduces fluctuations in test parameters caused by positioning deviations, and ensures the consistency and reliability of test results.

[0044] It should be noted that the terminology used above is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mobile phone light sensing and coupling auxiliary testing fixture, characterized in that, include: The shielding box includes an adjustable bracket with an adjustable top surface height and a coupling plate. The shielding box has a cable outlet hole on its side and a light-diffusing plate on its top. Multiple lamp tubes are installed in the area between the light-diffusing plate and the top surface of the shielding box. The adjustable bracket is installed on the bottom plate of the shielding box, and the coupling plate is horizontally installed on the adjustable bracket. A test mobile phone is placed on top of the coupling plate.

2. The mobile phone light sensing and coupling auxiliary testing fixture as described in claim 1, characterized in that, The adjusting bracket includes: a bracket base mounted on the bottom plate of the shielding box, a cross linkage assembly mounted on the bracket base with adjustable cross angle, a bracket top plate horizontally mounted on the top of the cross linkage assembly, and an adjusting component for adjusting the angle of the cross linkage to change the height of the bracket top plate.

3. The mobile phone light sensing and coupling auxiliary testing fixture as described in claim 2, characterized in that, On the surface of the support base opposite to the support top plate, near one end, there are four rotating connecting seats arranged in pairs. Near the other end, there are four sliding seat with transverse grooves arranged in pairs. A connecting rod is provided between each pair of sliding seats. The connecting rod can slide and rotate along the sliding groove. The cross linkage assembly includes: two first connecting rods and two second connecting rods. The second connecting rods cross the first connecting rods and are rotatably connected at the intersection. The lower ends of the two first connecting rods are rotatably connected to the two rotating connecting seats on the support base, and the upper ends are connected to the connecting rod on the sliding seat of the support top plate. The upper ends of the two first connecting rods are rotatably connected to the two rotating connecting seats on the bottom surface of the support top plate, and the lower ends are connected to the connecting rod on the sliding seat of the support base plate.

4. The mobile phone light sensing and coupling auxiliary testing fixture as described in claim 3, characterized in that, The adjustment assembly includes: a pair of lead screw seats disposed on the bottom surface of the top plate of the support; a lead screw, one end of which is mounted on one of the lead screw seats, and the other end of which passes through the other lead screw seat and extends beyond the bottom surface of the top plate of the support; a nut seat threadedly connected to the lead screw and having a through hole for a connecting rod passing through a slide seat on the top plate of the support; and a hand crank disposed on the other end of the lead screw. Rotating the lead screw with the hand crank causes the nut seat to move along the lead screw, thereby causing the connecting rod on the slide seat of the top plate of the support to move along the slide groove to adjust the angle of the cross linkage assembly.

5. The mobile phone light sensing and coupling auxiliary testing fixture as described in claim 2, characterized in that, The upper surface of the bracket top plate is provided with a first groove for installing the coupling plate and a first wire groove communicating with the first groove.

6. The mobile phone light sensing and coupling auxiliary testing fixture as described in claim 5, characterized in that, The top plate of the bracket is also provided with a mobile phone base, and the mobile phone base has a placement opening for placing the test mobile phone at the position corresponding to the coupling plate.

7. The mobile phone light sensing and coupling auxiliary testing fixture as described in claim 2, characterized in that, The bottom surface of the shielding box is provided with positioning protrusions arranged in an array, and the bottom surface of the support base is provided with positioning grooves corresponding to the positioning protrusions.

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