Firmness detection device

By designing an automated robustness testing device, the problem of difficulty in judging the stability of the welded joint between the busbar and the conductive sheet was solved, achieving efficient and accurate testing, optimizing the production process and reducing labor costs.

CN223976990UActive Publication Date: 2026-03-06通威太阳能(盐城)有限公司
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Patent Information

Application Number
CN202520131954.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-03-06
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

In existing technologies, the stability of the welded joint between the busbar and the conductive sheet is difficult to judge intuitively, resulting in low efficiency and the risk of missed detection.

Method used

A robustness testing device was designed, including a device base, a testing device, and a motion mechanism. By automatically controlling the testing device to move along multiple motion trajectories and applying testing tension, automated testing of welded joints can be achieved.

Benefits of technology

It improved testing efficiency and accuracy, eliminated the possibility of missed detections, optimized the production process, reduced labor costs, and enhanced product reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a firmness detection device, a device base is provided with an assembly table surface, the assembly table surface is configured to form a horizontal reference surface, a detection device comprises a telescopic part and a clamping part, the clamping part is configured to clamp a target body, and the telescopic part is connected with the clamping part and used for controlling the clamping part to move along a telescopic track. And the movement mechanism is assembled on the assembly table top of the device base, is connected with the detection device and is used for controlling the detection device to move relative to the device base along at least one movement track. In the firmness detection device, the telescopic component can be automatically controlled, so that a detection task is automatically executed, the working efficiency can be greatly improved, the accuracy and comprehensiveness of a detection result can be ensured, the possibility of missing detection is thoroughly eliminated, the production process is optimized, the labor cost is reduced, and the production efficiency is improved. And the reliability of the product is obviously improved.
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Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to robustness testing devices. Background Technology

[0002] The junction box of a photovoltaic module is a device that integrates key components such as cables, connectors, diodes, and copper heat sinks. Its core function is to connect the busbars inside the module, ensuring smooth current flow. During the connection process, the busbars are typically soldered to conductive plates inside the junction box using solder blocks to form an electrical connection. However, the stability of the solder joint between the busbar and the conductive plates is difficult to judge visually.

[0003] Currently, the stability of the welded joint between the busbar and the conductive sheet mainly relies on manual inspection, i.e., checking the weld for strength by fiddling with it. However, this method is not only inefficient but also carries the risk of missing certain areas, affecting product quality control. Utility Model Content

[0004] Therefore, it is necessary to provide a robustness testing device to address the aforementioned technical problems.

[0005] This application provides a robustness testing device, the robustness testing device comprising:

[0006] A device base having an assembly table configured to form a horizontal reference plane;

[0007] A detection device includes a telescopic component and a clamping component, the clamping component being configured to clamp a target body, the telescopic component being connected to the clamping component for controlling the clamping component to move along a telescopic trajectory, thereby applying a detection pull force to the target body;

[0008] A motion mechanism is mounted on the mounting surface of the device base and is connected to the detection device for controlling the detection device to move relative to the device base along at least one motion trajectory.

[0009] In one embodiment, the target body is configured as a busbar; and / or,

[0010] The motion mechanism is connected to the detection device and is used to control the detection device to move relative to the device base along at least three motion trajectories; and / or,

[0011] The telescopic trajectory is configured as a straight line trajectory, and the telescopic trajectory is perpendicular to the horizontal reference plane; and / or,

[0012] The clamping components include a first clamping member and a second clamping member that can be brought close to or separated from each other.

[0013] In one embodiment, the detection device further includes:

[0014] The first adjusting body, wherein the telescopic end of the telescopic component is connected to the first adjusting body, and is used to control the first adjusting body to move along the telescopic trajectory;

[0015] The second adjusting body is movably mounted on the first adjusting body, and the clamping component is mounted on the second adjusting body.

[0016] In one embodiment, the detection device further includes:

[0017] A positioning element, which is connected to at least one of the first adjusting body and the second adjusting body.

[0018] In one embodiment, the second adjusting body is movably assembled to the first adjusting body along an adjusting trajectory, and the plane containing the adjusting trajectory is parallel to the horizontal reference plane.

[0019] In one embodiment, the motion mechanism includes:

[0020] A first moving body is mounted on the mounting platform of the device base, wherein the first moving body defines a first motion trajectory.

[0021] A second moving body is movably assembled relative to the first moving body along the first moving trajectory, wherein the second moving body defines a second moving trajectory;

[0022] A third moving body is movably assembled relative to the second moving body along the second moving trajectory, wherein the third moving body defines a third moving trajectory, and the detection device is movably assembled relative to the third moving body along the third moving trajectory.

[0023] In one embodiment, at least one of the first moving body, the second moving body, and the third moving body is a cylindrical structure; and / or,

[0024] At least one of the first motion trajectory, the second motion trajectory, and the third motion trajectory is configured as a straight-line trajectory; and / or,

[0025] The number of detection devices is configured to be several, and several detection devices are movably assembled relative to the third moving body along the third motion trajectory.

[0026] In one embodiment, the first motion trajectory, the second motion trajectory, and the third motion trajectory are all configured as straight-line trajectories. The first motion trajectory and the second motion trajectory are perpendicular to each other, and the second motion trajectory and the third motion trajectory are perpendicular to each other. The planes in which the second motion trajectory and the third motion trajectory are located are parallel to the horizontal reference plane.

[0027] In one embodiment, the first moving body is provided with a first linear guide rail, the first linear guide rail being configured to form the first motion trajectory, and the second moving body is movably mounted to the first moving body via the first linear guide rail; and / or

[0028] The second moving body is provided with a second linear guide rail, the second linear guide rail being configured to form the second motion trajectory, and the third moving body is movably mounted to the second moving body via the second linear guide rail; and / or,

[0029] The third moving body is provided with a third linear guide rail, which is configured to form the third motion trajectory. The detection device is movably mounted on the third moving body via the third linear guide rail.

[0030] In one embodiment, the robustness detection device further includes:

[0031] A control device, connected to the detection device, is used to control the telescopic component to drive the clamping component to move along the telescopic trajectory and apply a detection tension within a predetermined range to the target body.

[0032] In the aforementioned robustness testing device, the aforementioned motion mechanism can automatically move the testing device to the target body according to a preset program. At the same time, the testing device can also work in an automated control manner based on the cooperation of the telescopic component and the clamping component, thereby automatically executing the testing task. This not only greatly improves work efficiency, but also ensures the accuracy and comprehensiveness of the test results, completely eliminates the possibility of missed detection, optimizes the production process, reduces labor costs, and significantly improves product reliability. Attached Figure Description

[0033] Figure 1 A perspective view of a robustness testing device provided in one embodiment of this application.

[0034] Figure 2 For example Figure 1 A perspective view of the robustness testing device shown from another angle.

[0035] Figure 3This is a perspective view of a detection device provided in one embodiment of this application.

[0036] Figure 4 For example Figure 1 A partial 3D view of the detection device shown.

[0037] Icon labels:

[0038] 1000, Device base; 2000, Detection device; 3000, Motion mechanism;

[0039] 1001. Assemble the work surface;

[0040] 2100 Telescopic component; 2200 Clamping component; 2201 First clamping member; 2202 Second clamping member; 2300 First adjusting body; 2400 Second adjusting body; 2500 Positioning element;

[0041] 3100, First moving body; 3200, Second moving body; 3300, Third moving body;

[0042] 3101, First linear guide; 3201, Second linear guide; 3301, Third linear guide. Detailed Implementation

[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0044] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0045] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0049] See Figures 1 to 4As shown, this application provides a stability testing device, which includes a device base 1000, a testing device 2000, and a motion mechanism 3000. The device base 1000 serves as the assembly foundation for the testing device 2000, the motion mechanism 3000, and other components. The device base 1000 can adopt various regular or irregular structures such as a plate structure, a seat structure, or a block structure, thereby allowing the device base 1000 to be installed on the ground, so that the entire stability testing device can be stably installed or placed on the ground. The installation method can be bolt installation, adhesive installation, snap-fit ​​installation, etc., and is not limited here.

[0050] like Figure 1 As shown, the device base 1000 has an assembly platform 1001, which is configured to form a horizontal reference plane that is defined as parallel to a horizontal plane when the entire robustness testing device is installed or placed on the ground. (Continue reading) Figure 3 As shown, the detection device 2000 includes a telescopic component 2100 and a clamping component 2200. The clamping component 2200 is configured to clamp a target body. For example, the clamping component 2200 includes a first clamping member 2201 and a second clamping member 2202 that can move closer to or separate from each other. When the first clamping member 2201 and the second clamping member 2202 move closer to each other, a clamping action is performed; when the first clamping member 2201 and the second clamping member 2202 separate from each other, a release action is performed. The telescopic component 2100 is connected to the clamping component 2200. The telescopic component 2100 can be a telescopic rod, a telescopic cylinder, or other similar device. Utilizing the telescopic capability of the telescopic component 2100, the telescopic component 2100 can be used to control the movement of the clamping component 2200 along a telescopic trajectory. When the clamping component 2200 clamps the target body, if the telescopic component 2100 controls the clamping component 2200 to move telescopically along the telescopic trajectory, a detection pulling force can be applied to the target body.

[0051] In one embodiment, a controller can be connected to a detection device 2000. The controller, according to predetermined control logic or control commands, controls the telescopic component 2100 to move the clamping component 2200 along a telescopic trajectory, applying a detection pull force within a predetermined range to the target body. The magnitude of this detection pull force can be limited according to the detection requirements of different target bodies. In one embodiment, the target body can be configured as a busbar, i.e., the weld strength of the welded busbar is detected. The telescopic trajectory is configured as a straight trajectory and is perpendicular to the horizontal reference plane. Therefore, when the telescopic component 2100 controls the clamping component 2200 to move along the telescopic trajectory, it is equivalent to pulling the busbar along the height direction, thereby detecting the weld strength of the busbar.

[0052] The aforementioned motion mechanism 3000 can automatically move the detection device 2000 to the target body according to a preset program. At the same time, the detection device 2000 can also work in an automated control manner based on the cooperation of the telescopic component 2100 and the clamping component 2200, thereby automatically executing the detection task. This not only greatly improves work efficiency, but also ensures the accuracy and comprehensiveness of the detection results, completely eliminates the possibility of missed detection, optimizes the production process, reduces labor costs, and significantly improves product reliability.

[0053] In one embodiment, the detection device 2000 further includes a first adjusting body 2300 and a second adjusting body 2400. The telescopic end of the telescopic member 2100 is connected to the first adjusting body 2300. The telescopic member 2100 controls the first adjusting body 2300 to move along a telescopic trajectory. At this time, the second adjusting body 2400 is movably mounted on the first adjusting body 2300, and the clamping member 2200 is mounted on the second adjusting body 2400. Therefore, the telescopic member 2100 can control the first adjusting body 2300 and the second adjusting body 2400 to move along the telescopic trajectory, thereby indirectly controlling the clamping member 2200 to move along the telescopic trajectory. In one embodiment, the second adjusting body 2400 is movably mounted on the first adjusting body 2300 along the adjusting trajectory, and the plane on which the adjusting trajectory is located is parallel to the horizontal reference plane. The movement of the second adjusting body 2400 relative to the first adjusting body 2300 can help the clamping member 2200 accurately locate and find the target object and clamp the target object.

[0054] In one embodiment, the detection device 2000 further includes a positioning element 2500, which is connected to at least one of the first adjusting body 2300 and the second adjusting body 2400. For example, the positioning element 2500 is connected to the second adjusting body 2400 and is attached to the side of the second adjusting body 2400. When the motion mechanism 3000 controls the detection device 2000 to move toward the target body, or when the second adjusting body 2400 moves relative to the first adjusting body 2300, the positioning element 2500 can be used to form a positioning contact with the target body or a specific position around the target body, thereby realizing the relative positioning between the clamping component 2200 and the target body, helping the clamping component 2200 to quickly and accurately locate and find the target body and perform clamping on the target body.

[0055] Continue reading Figure 1As shown, the motion mechanism 3000 is mounted on the mounting platform 1001 of the device base 1000. The motion mechanism 3000 is connected to the detection device 2000 and is used to control the detection device 2000 to move relative to the device base 1000 along at least one motion trajectory. This allows the detection device 2000 to move to a suitable spatial position for clamping and pulling detection of the target object. In one embodiment, the motion mechanism 3000 is used to control the detection device 2000 to move relative to the device base 1000 along at least three motion trajectories, thereby moving it to any spatial position within a specific space.

[0056] Continue reading Figure 1 and Figure 2 As shown, in one embodiment, the motion mechanism 3000 includes a first motion body 3100, a second motion body 3200, and a third motion body 3300. The first motion body 3100 is mounted on the mounting platform 1001 of the device base 1000, wherein the first motion body 3100 defines a first motion trajectory. The second motion body 3200 is movably mounted relative to the first motion body 3100 along the first motion trajectory, wherein the second motion body 3200 defines a second motion trajectory. The third motion body 3300 is movably mounted relative to the second motion body 3200 along the second motion trajectory, wherein the third motion body 3300 defines a third motion trajectory. The detection device 2000 is movably mounted relative to the third motion body 3300 along the third motion trajectory. In one embodiment, at least one of the first motion body 3100, the second motion body 3200, and the third motion body 3300 is a columnar structure. Other regular or irregular structures, such as plate structures, may also be used, and no limitation is made here.

[0057] In one embodiment, at least one of the first, second, and third motion trajectories is configured as a straight line trajectory; alternatively, a curved trajectory may also be used. Furthermore, the number of detection devices 2000 is configured to be plurality, and the plurality of detection devices 2000 are movably assembled relative to the third moving body 3300 along the third motion trajectory. For example, as... Figure 1 and Figure 2 As shown, the three detection devices 2000 are all dynamically assembled relative to the third moving body 3300 along the third motion trajectory.

[0058] In one embodiment, the first, second, and third motion trajectories are all configured as straight lines. The first and second motion trajectories are perpendicular to each other, as are the second and third motion trajectories. The planes containing the second and third motion trajectories are parallel to the horizontal reference plane. Therefore, the first, second, and third motion trajectories can construct three directions for the movement of the detection device 2000 in space, used to control the detection device 2000 to move to any point in three-dimensional space. For example, the direction of the first motion trajectory can be defined as the Z direction, the direction of the second motion trajectory can be defined as the Y direction, and the direction of the third motion trajectory can be defined as the X direction. The X, Y, and Z directions form a coordinate system in three-dimensional space.

[0059] The first, second, and third motion trajectories can be implemented using slide rails, grooves, etc. In one embodiment, the first moving body 3100 is provided with a first linear guide rail 3101, which is configured to form the first motion trajectory. The second moving body 3200 is movably mounted to the first moving body 3100 via the first linear guide rail 3101. The second moving body 3200 is provided with a second linear guide rail 3201, which is configured to form the second motion trajectory. The third moving body 3300 is movably mounted to the second moving body 3200 via the second linear guide rail 3201. The third moving body 3300 is provided with a third linear guide rail 3301, which is configured to form the third motion trajectory. The detection device 2000 is movably mounted to the third moving body 3300 via the third linear guide rail 3301. In addition, those skilled in the art can choose other methods to construct the first, second, and third motion trajectories according to actual needs, and no limitation is made here.

[0060] Based on the aforementioned robustness testing device, after the photovoltaic module completes the junction box welding process, it can be conveyed along the production line to the station of the robustness testing device. Once the robustness testing device identifies the photovoltaic module, it automatically initiates the testing process. This identification can be performed using a vision system such as a camera. At this time, the controller will work in conjunction with the motion mechanism 3000 to move the testing device 2000 to a suitable position relative to the target object, such as moving the testing device 2000 laterally or longitudinally within space, so that the positioning element 2500 is accurately aligned and fitted against the outside of the junction box, completing the positioning operation. Then, the clamping component 2200 will clamp the welded part of the junction box. At this time, the telescopic component 2100 will control the clamping component 2200 to extend and retract, thereby applying a testing pull force relative to the target object to test the weld's robustness.

[0061] At this point, the corresponding central system can make a judgment. If the clamping component 2200 fails to pull up the welded busbar, the program will judge it as "OK," meaning the junction box welding is qualified, and the photovoltaic module will be released. Conversely, if the clamping component 2200 successfully pulls up the busbar, the program will judge it as "NG," meaning it is unqualified. In this case, the clamping component 2200 will release the busbar, and the robustness detection device will send a signal to the central system, instructing the photovoltaic module to be automatically transferred to the rework area for necessary repair work.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A firmness detecting device characterized by comprising: The firmness detection device comprises: a device base (1000) having an assembly table (1001) configured to form a horizontal reference plane; a detection apparatus (2000) comprising a telescopic component (2100) and a clamping component (2200) configured to clamp a target object, the telescopic component (2100) being connected with the clamping component (2200) to control the clamping component (2200) to move along a telescopic track, thereby applying a detection tension to the target object; a movement mechanism (3000) assembled on the assembly table (1001) of the device base (1000), the movement mechanism (3000) being connected with the detection apparatus (2000) to control the detection apparatus (2000) to move along at least one movement track relative to the device base (1000).

2. The security detection apparatus according to claim 1, wherein The target object is configured as a busbar; and / or, The movement mechanism (3000) is connected with the detection apparatus (2000) to control the detection apparatus (2000) to move along at least three movement tracks relative to the device base (1000); and / or, The telescopic track is configured as a straight track, and the telescopic track is perpendicular to the horizontal reference plane; and / or, The clamping component (2200) comprises a first clamping piece (2201) and a second clamping piece (2202) that can approach or separate from each other.

3. The security detection apparatus according to claim 1, wherein The detection apparatus (2000) further comprises: a first adjusting body (2300), a telescopic end of the telescopic component (2100) being connected with the first adjusting body (2300) to control the first adjusting body (2300) to move along a telescopic track; a second adjusting body (2400), the second adjusting body (2400) being movably assembled on the first adjusting body (2300), and the clamping component (2200) being assembled on the second adjusting body (2400).

4. The security detection apparatus according to claim 3, wherein The detection apparatus (2000) further comprises: a positioning element (2500) connected with at least one of the first adjusting body (2300) and the second adjusting body (2400).

5. The security detection apparatus according to claim 3, wherein The second adjusting body (2400) is movably assembled on the first adjusting body (2300) along an adjusting track, and a plane where the adjusting track is located is parallel to the horizontal reference plane.

6. The security detection apparatus according to claim 1, wherein The movement mechanism (3000) comprises: a first movement body (3100) assembled on the assembly table (1001) of the device base (1000), wherein the first movement body (3100) defines a first movement track; a second movement body (3200) movably assembled on the first movement body (3100) along the first movement track, wherein the second movement body (3200) defines a second movement track; and a third movement body (3300) movably assembled on the second movement body (3200) along the second movement track. A third moving body (3300) is movably arranged along the second moving track relative to the second moving body (3200), wherein the third moving body (3300) defines a third moving track, and the detection device (2000) is movably arranged along the third moving track relative to the third moving body (3300).

7. The security detection apparatus according to claim 6, wherein At least one of the first moving body (3100), the second moving body (3200) and the third moving body (3300) is in a columnar structure; and / or, At least one of the first moving track, the second moving track and the third moving track is configured as a straight line track; and / or, The number of the detection devices (2000) is configured as several, and each of the several detection devices (2000) is movably arranged along the third moving track relative to the third moving body (3300).

8. The security detection apparatus according to claim 7, wherein The first moving track, the second moving track and the third moving track are all configured as straight line tracks, the first moving track and the second moving track are perpendicular to each other, the second moving track and the third moving track are perpendicular to each other, and the first moving track and the third moving track are perpendicular to each other, wherein the planes where the second moving track and the third moving track are located are both parallel to the horizontal reference plane.

9. The security detection apparatus according to claim 8, wherein The first moving body (3100) is provided with a first straight line guide rail (3101) configured to form the first moving track, and the second moving body (3200) is movably arranged on the first moving body (3100) through the first straight line guide rail (3101); and / or, The second moving body (3200) is provided with a second straight line guide rail (3201) configured to form the second moving track, and the third moving body (3300) is movably arranged on the second moving body (3200) through the second straight line guide rail (3201); and / or, The third moving body (3300) is provided with a third straight line guide rail (3301) configured to form the third moving track, and the detection device (2000) is movably arranged on the third moving body (3300) through the third straight line guide rail (3301).

10. The security detection apparatus according to any one of claims 1 to 9, wherein The firmness detection device further comprises: A control device connected with the detection device (2000) and used to control the telescopic component (2100) to drive the clamping component (2200) to move along the telescopic track and apply a detection tension within a predetermined range to the target body.