Testing tool for photovoltaic module

Abstract

The utility model provides a test tool for a photovoltaic module, and relates to the technical field of photovoltaic module testing, and the test tool for the photovoltaic module comprises a test main body which is used for connecting the photovoltaic module; the at least two clamping pieces are correspondingly arranged at the two ends of the test main body in a sliding manner, and the clamping pieces are used for being clamped in the mounting grooves of the rack; at least three elastic pieces are arranged between the testing main body and the clamping piece, the elastic pieces are connected with the testing main body and the clamping piece, and at least one elastic piece and any other two elastic pieces are not distributed on the same straight line. According to the test tool of the photovoltaic module provided by the invention, the problem that the installation stability of the test tool on the rack is relatively poor in the prior art is solved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module testing technology, and in particular to a testing fixture for photovoltaic modules. Background Technology

[0002] The IV test of photovoltaic modules is an important basis for measuring the performance of photovoltaic modules. The IV test refers to the test of the current-voltage (IV) characteristic curve of photovoltaic modules to determine key parameters such as maximum power (Pmax), open circuit voltage (Voc), short circuit current (Isc), and fill factor (FF), to ensure that the photovoltaic modules meet the design standards and customer requirements.

[0003] In related technologies, the test fixture used for IV testing of photovoltaic modules includes: a test body and two locking blocks. The two locking blocks are slidably disposed at both ends of the test body and are respectively engaged in two mounting slots on the frame. A spring is provided between the locking blocks and the test body to keep the two locking blocks engaged in the mounting slots under the pushing force of the spring. During testing, the photovoltaic module is mounted on the test body, and the photovoltaic module is electrically connected to the copper block on the test body to connect the photovoltaic module to the test circuit.

[0004] However, when the photovoltaic modules being installed are heavy, relative displacement can easily occur between the clamp and the test body, which can cause one end of the clamp to fall out of the mounting slot, resulting in poor stability of the test fixture on the frame. Utility Model Content

[0005] This application provides a testing fixture for photovoltaic modules to solve the problem of poor stability when the testing fixture is installed on the rack.

[0006] This application provides a testing fixture for photovoltaic modules, comprising:

[0007] Test body, the test body being used to connect photovoltaic modules;

[0008] At least two snap-fit ​​components are provided, which are slidably disposed at both ends of the test body and are used to snap into the mounting slots of the frame.

[0009] At least three elastic elements are provided between the test body and the snap-fit ​​component. The elastic elements connect the test body and the snap-fit ​​component, and at least one of the elastic elements is not distributed on the same straight line as any other two elastic elements.

[0010] In one possible implementation, at least one adjusting member is further included, the adjusting member being slidably disposed on the snap-fit ​​member or the test body, and the adjusting member being connected to the elastic member;

[0011] The adjusting member is configured to slide relative to the snap-fit ​​member or the test body to adjust the initial deformation of the elastic member.

[0012] In one possible implementation, the adjusting member includes an abutment and a locking pin, the abutment being slidably disposed on the snap-fit ​​member, and the end of the elastic member facing the snap-fit ​​member being connected to the abutment.

[0013] The abutment seat is provided with a plurality of positioning holes distributed along the sliding direction of the abutment seat, and the locking pin is provided on the snap-fit ​​member, and the locking pin is inserted into any one of the positioning holes.

[0014] In one possible implementation, at least three elastic elements include a first elastic element and two second elastic elements, the two second elastic elements being distributed along the width direction of the test body, and the first elastic element being distributed on one side of the line containing the two second elastic elements.

[0015] In one possible implementation, the distances from the first elastic element to the two second elastic elements are equal.

[0016] In one possible implementation, the snap-fit ​​component is provided with a guide rod, which passes through and is slidably connected to the test body.

[0017] In one possible implementation, the elastic element is a spring, with the test body and the snap-fit ​​member respectively connected at both ends in the extension direction.

[0018] In one possible implementation, at least three guide rods are provided, and the springs are coaxially sleeved on the guide rods.

[0019] In one possible implementation, the test body is provided with a strip-shaped limiting hole, which extends along the sliding direction of the snap-fit ​​member;

[0020] The snap-fit ​​component is provided with a limiting element, at least a portion of which is located within the strip-shaped limiting hole.

[0021] In one possible implementation, the snap-fit ​​member is provided with a plurality of mounting holes, which are distributed along the sliding direction of the snap-fit ​​member, and the limiting member engages with any one of the mounting holes.

[0022] This application provides a testing fixture for photovoltaic modules, comprising: a test body for connecting the photovoltaic module; at least two snap-fit ​​members slidably disposed at both ends of the test body and snap-fitted into mounting slots on a frame; and at least three elastic members connecting the test body and the snap-fit ​​members, wherein at least one elastic member is not collinear with any of the other two elastic members. Therefore, during installation, the snap-fit ​​members are snapped into the mounting slots on the frame, thus completing the installation of the testing fixture on the frame, after which the photovoltaic module can be installed on the test body. In use, at least three elastic elements can simultaneously support the snap-fit ​​component from multiple directions, ensuring that the snap-fit ​​component is more securely snapped into the mounting slot. This enhances the load-bearing capacity of the test fixture, making it less likely for the snap-fit ​​component to shift relative to the test body when the photovoltaic module is heavy. It also reduces the possibility of one end of the snap-fit ​​component falling out of the mounting slot, reduces the possibility of the test fixture tipping over on the frame, and improves the stability of the test fixture on the frame. This solves the problem of poor stability of test fixtures on the frame in related technologies. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0024] Figure 1 A schematic diagram of the structure of a testing fixture for a photovoltaic module provided in an embodiment of this application;

[0025] Figure 2 for Figure 1 Schematic diagram of the installation structure of the intermediate elastic element;

[0026] Figure 3 for Figure 2 Left view of the mounting structure of the elastic element;

[0027] Figure 4 for Figure 2 A schematic diagram of the structure of the spring;

[0028] Figure 5 for Figure 1 A magnified structural diagram of part A in the middle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100 - Test body; 110 - Sleeve; 120 - First section; 130 - Second section; 140 - Third section; 150 - Telescopic section;

[0031] 200 - Snap-in connector; 210 - Mounting hole;

[0032] 300 - Elastic element; 310 - First elastic element; 320 - Second elastic element;

[0033] 400-guide rod;

[0034] 500 - Adjusting element; 510 - Abutment seat; 511 - Positioning hole; 520 - Locking pin;

[0035] 600-Strip-shaped limiting hole;

[0036] 700 - Limiting component;

[0037] 800-Copper block.

[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0040] In related technologies, IV testing refers to testing the current-voltage (IV) characteristic curve of photovoltaic modules to determine key parameters such as maximum power (Pmax), open-circuit voltage (Voc), short-circuit current (Isc), and fill factor (FF), ensuring that the photovoltaic modules meet design standards and customer requirements.

[0041] The test fixture used for IV testing of photovoltaic modules includes a test body and two locking blocks. The two locking blocks are slidably mounted at both ends of the test body and are respectively engaged in two mounting slots on the frame. A spring is installed between the locking blocks and the test body to keep the two locking blocks engaged in the mounting slots under the force of the spring. During testing, the photovoltaic module is mounted on the test body, and the photovoltaic module is electrically connected to the copper block on the test body to connect the photovoltaic module to the test circuit.

[0042] However, when the photovoltaic modules being installed are heavy, relying solely on a single spring to support the clamping block can easily lead to relative displacement between the clamping block and the test body. This can cause one end of the clamping block to detach from the mounting slot, resulting in the test fixture tipping over and thus poor stability when mounted on the frame. For example, when the test body bears a heavy load, it can easily compress one end of the spring, causing the other end of the clamping block to detach from the mounting slot, ultimately leading to the tipping over of the entire test fixture and photovoltaic module.

[0043] Therefore, this application provides a testing fixture for photovoltaic modules, comprising: a testing body for connecting photovoltaic modules; at least two snap-fit ​​members, which are slidably disposed at both ends of the testing body and are used to snap into mounting slots in a frame; and at least three elastic members connecting the testing body and the snap-fit ​​members, wherein at least one elastic member is not collinear with any of the other two elastic members. During installation, the snap-fit ​​members are snapped into the mounting slots in the frame, thereby completing the installation of the testing fixture on the frame, after which the photovoltaic modules can be installed on the testing body. In use, at least three elastic elements can simultaneously support the snap-fit ​​component from multiple directions, ensuring that the snap-fit ​​component is more securely snapped into the mounting slot. This enhances the load-bearing capacity of the test fixture, making it less likely for the snap-fit ​​component to shift relative to the test body when the photovoltaic module is heavy. It also reduces the possibility of one end of the snap-fit ​​component falling out of the mounting slot and the possibility of the test fixture tipping over on the frame. This improves the stability of the test fixture on the frame and solves the problem of poor stability of test fixtures on the frame in related technologies.

[0044] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0045] like Figure 1 As shown in the embodiment of this application, a testing fixture for a photovoltaic module includes:

[0046] Test body 100, which is used to connect photovoltaic modules;

[0047] At least two snap-fit ​​pieces 200 are provided, which are slidably disposed at both ends of the test body 100. The snap-fit ​​pieces 200 are used to snap into the mounting slots of the frame.

[0048] At least three elastic elements 300 are provided between the test body 100 and the snap-fit ​​component 200. The elastic elements 300 connect the test body 100 and the snap-fit ​​component 200, and at least one elastic element 300 is not distributed on the same straight line as any other two elastic elements 300.

[0049] It should be noted that the test body 100 can be a long strip structure, and the material is not limited. Multiple copper blocks 800 can be screwed, snap-fitted, or otherwise installed on the test body 100 to electrically connect with the photovoltaic module, thereby achieving the purpose of IV testing of the photovoltaic module. The arrangement of the copper blocks 800 and the shape of the test body 100 can refer to existing technologies and are not limited thereto.

[0050] In this embodiment, two snap-fit ​​connectors 200 are provided, and are respectively slidably disposed at both ends of the test body 100 in the extension direction. During installation, the two snap-fit ​​connectors 200 can be respectively snapped into the two mounting slots on the frame, thereby completing the installation of the test body 100 on the frame.

[0051] In implementation, the snap-fit ​​component 200 can be configured as a square structure or a platform-shaped structure; there are no restrictions on the shape and material of the snap-fit ​​component 200. Of course, the snap-fit ​​component 200 can also be adapted to the inner contour of the mounting groove, as long as the shape of the snap-fit ​​component 200 can match the shape of the mounting groove.

[0052] In addition, at least three elastic members 300 are provided between the test body 100 and the snap-fit ​​member 200. The two ends of each elastic member 300 are connected to the test body 100 and the snap-fit ​​member 200, respectively, and at least one elastic member 300 is not collinear with any of the other two elastic members 300. This allows the snap-fit ​​member 200 to be supported simultaneously from multiple different directions by the multiple elastic members 300 after it is snapped into the mounting slot, reducing the possibility of the snap-fit ​​member 200 falling out of the mounting slot.

[0053] Therefore, during installation, the corresponding snap-fit ​​component 200 is snapped into the mounting slot on the frame to complete the installation of the test fixture on the frame, and then the photovoltaic module can be installed on the test body 100.

[0054] In use, at least three elastic members 300 can simultaneously support the snap-fit ​​member 200 from multiple directions, so that the snap-fit ​​member 200 is more firmly snapped into the mounting slot, improving the load-bearing capacity of the test fixture. This makes it less likely for the snap-fit ​​member 200 to shift relative to the test body 100 when the photovoltaic module is heavy, reducing the possibility of one end of the snap-fit ​​member 200 falling out of the mounting slot and reducing the possibility of the test fixture tipping over on the frame. This improves the stability of the test fixture on the frame and solves the problem of poor stability of the test fixture on the frame in related technologies.

[0055] like Figure 2 and Figure 3 As shown, in some embodiments, at least three elastic elements 300 include a first elastic element 310 and two second elastic elements 320, the two second elastic elements 320 being distributed along the width direction of the test body 100, and the first elastic element 310 being distributed on one side of the line where the two second elastic elements 320 are located.

[0056] Specifically, the test body 100 is horizontally extended. Three elastic elements 300 are provided: one first elastic element 310 and two second elastic elements 320. The two second elastic elements 320 are distributed along the width of the test body 100. The first elastic element 310 is distributed on one side of the line containing the two second elastic elements 320. In this embodiment, the first elastic element 310 is distributed above the line containing the two second elastic elements 320, so that the distribution trajectory of the first elastic element 310 and the two second elastic elements 320 forms a triangle.

[0057] In use, in addition to the two second elastic members 320 supporting the snap-fit ​​member 200, the first elastic member 310 can also support the snap-fit ​​member 200 from above the second elastic members 320, so that the snap-fit ​​member 200 can be supported in multiple directions. This reduces the possibility of relative displacement between the snap-fit ​​member 200 and the test body 100 when the test fixture bears a large load.

[0058] In some embodiments, such as Figure 3 As shown, the distances from the first elastic member 310 to the two second elastic members 320 can be made equal. This allows the line connecting the first elastic member 310 and the two second elastic members 320 to form a vertically arranged isosceles triangle. This results in more uniform support of the multiple elastic members 300 to the snap-fit ​​member 200 and better symmetry. Alternatively, the line connecting the first elastic member 310 and the two second elastic members 320 can also form a vertically arranged equilateral triangle.

[0059] like Figure 2 As shown, in some embodiments, the snap-fit ​​200 is provided with a guide rod 400, which passes through and is slidably connected to the test body 100.

[0060] It should be noted that the guide rod 400 has a long strip structure and the material is not limited. The extension direction of the guide rod 400 is consistent with the sliding direction of the snap-fit ​​component 200. One end of the guide rod 400 in the extension direction can be connected to the snap-fit ​​component 200 by welding, screwing, integral molding or other methods. The other end of the guide rod 400 in the extension direction passes through and is slidably connected to the end of the test body 100, so that the snap-fit ​​component 200 is slidably connected to the test body 100.

[0061] Therefore, under the support and guidance of the guide rod 400, the snap-fit ​​component 200 can slide relatively stably relative to the test body 100.

[0062] Furthermore, the elastic element 300 is a spring, and the two ends of the spring in the extension direction are respectively connected to the test body 100 and the snap-fit ​​element 200.

[0063] In this embodiment, both the first elastic element 310 and the second elastic element 320 are configured as springs, and the two ends of the springs in the extension direction can respectively abut against the snap-fit ​​element 200 and the test body 100. Of course, the two ends of the springs in the extension direction can also be connected to the snap-fit ​​element 200 or the test body 100 by snap-fit, plug-in, screw-in or other means.

[0064] Therefore, multiple springs can simultaneously support the snap-fit ​​component 200, reducing the possibility of the snap-fit ​​component 200 falling out of the mounting slot and improving the load-bearing capacity of the test fixture.

[0065] Based on this, at least three guide rods 400 can be provided, and springs can be coaxially sleeved on the guide rods 400.

[0066] In other words, the number of guide rods 400 can be set to correspond to the number of springs, so that each spring can be coaxially sleeved on each guide rod 400. Furthermore, while the guide rods 400 and springs slide along the support latch 200, the guide rods 400 also provide better support for the springs, reducing the possibility of the springs bending and thus reducing their effectiveness, ensuring that the springs can contract and extend relatively stably.

[0067] In other embodiments, the elastic element 300 may also be configured as a spring sheet, elastic rope, or elastic block that connects the snap-fit ​​element 200 and the test body 100.

[0068] In related technologies, the stiffness coefficient of the springs used is typically 12 N / mm, and the total stiffness of the spring system is 24 N / mm. In this embodiment, during implementation, as follows... Figure 4As shown, the parameters of the spring used are as follows: stiffness coefficient: 8 N / mm; spring material: 60Si2MnA; wire diameter (d): Φ0.87 mm; effective number of coils (n): 9 coils; spring mean diameter (D): 65 mm; pitch (t): 30 mm; free height (H0): 44.135 mm, where H0 = (n+1.5)d + D -t. Thus, while ensuring load-bearing capacity, the total stiffness of the spring is adjusted to a more reasonable 19.2 N / mm, thereby reducing stress concentration and improving buffering performance, significantly enhancing the operational stability of the testing fixture under dynamic conditions.

[0069] like Figure 2 As shown, in some embodiments, the testing fixture for photovoltaic modules further includes at least one adjusting member 500, which is slidably disposed on the snap-fit ​​member 200 or the test body 100, and the adjusting member 500 is connected to the elastic member 300.

[0070] The adjusting member 500 is configured to slide relative to the snap-fit ​​member 200 or the test body 100 to adjust the initial deformation of the elastic member 300.

[0071] It should be noted that in this embodiment, the adjusting member 500 is set to one, and the adjusting member 500 is set to correspond to the first elastic member 310. In other embodiments, the adjusting member 500 may also be set to two, three or other quantities. Of course, the adjusting member 500 may also correspond to the second elastic member 320.

[0072] For example, the adjusting member 500 can be slidably disposed on the snap-fit ​​member 200, in which case the end of the first elastic member 310 facing the snap-fit ​​member 200 is connected to the adjusting member 500; the adjusting member 500 can also be slidably disposed on the test body 100, in which case the end of the first elastic member 310 facing the test body 100 is connected to the adjusting member 500. The sliding direction of the adjusting member 500 is consistent with the extending direction of the first elastic member 310.

[0073] Therefore, the extension range of the first elastic member 310 can be limited by sliding the adjusting member 500. In other words, the initial deformation of the first elastic member 310 can be adjusted by adjusting the adjusting member 500. This allows the first elastic member 310 to have a greater thrust when supporting the snap-fit ​​member 200, further optimizing the support effect on the snap-fit ​​member 200, reducing the possibility of relative displacement between the snap-fit ​​member 200 and the test body 100, and thus reducing the possibility of the snap-fit ​​member 200 falling out of the mounting slot.

[0074] like Figure 2 As shown, specifically, the adjusting member 500 includes an abutment 510 and a locking pin 520. The abutment 510 is slidably disposed on the snap-fit ​​member 200, and the end of the elastic member 300 facing the snap-fit ​​member 200 is connected to the abutment 510.

[0075] The abutment seat 510 is provided with a plurality of positioning holes 511 distributed along the sliding direction of the abutment seat 510, and the locking pin 520 is provided on the snap-fit ​​member 200, and the locking pin 520 is inserted into any one of the positioning holes 511.

[0076] In this embodiment, the adjusting member 500 includes an abutment seat 510 and a locking pin 520. The abutment seat 510 is slidably disposed on the snap-fit ​​member 200, and the end of the first elastic member 310 facing the snap-fit ​​member 200 abuts against the abutment seat 510. Of course, the end of the first elastic member 310 facing the snap-fit ​​member 200 can also be connected to the abutment seat 510 by snap-fit, insertion, or other means.

[0077] It should be noted that the abutment 510 has an annular structure and its inner diameter is adapted to the guide rod 400, so that the abutment 510 can be sleeved on the guide rod 400 and slide relative to the guide rod 400. Therefore, the guide rod 400 can also support and guide the sliding of the abutment 510, improving the stability of the abutment 510 during sliding. In other embodiments, the abutment 510 may also be configured as a block or other shapes.

[0078] Secondly, the abutment seat 510 is provided with a plurality of positioning holes 511 distributed along the sliding direction of the abutment seat 510. The locking pin 520 can be provided on the snap-fit ​​member 200 by means of plug-in or threaded connection, and the locking pin 520 can be inserted into any one of the positioning holes 511.

[0079] Therefore, the installation position of the first elastic element 310 can be adjusted by sliding the abutment 510. Secondly, after installing the snap-fit ​​200 onto the test body 100, the initial deformation of the first elastic element 310 can be adjusted, thereby improving the support effect of the first elastic element 310 on the snap-fit ​​200. Subsequently, after the abutment 510 slides, the locking pin 520 can be inserted into the corresponding positioning hole 511 in the current state, thereby locking the abutment 510 in the current position and ensuring the stability of the abutment 510.

[0080] In other embodiments, the adjusting member 500 may be configured to include an abutment ring, which is directly sleeved on and threadedly connected to the guide rod 400, and the abutment ring is connected to the elastic member 300.

[0081] When implementing, such as Figure 2 As shown, after adjusting the position of the first elastic element 310, the line connecting the end of the first elastic element 310 away from the latching member 200 and the end of any second elastic element 320 facing the latching member 200 in the projection along the height direction of the test body 100, and the axis of the first elastic element 310, forms an angle α between 10° and 25°. For example, the angle α can be set at 10°, 15°, 20°, 25°, or other values, preferably 15°.

[0082] Therefore, by reasonably setting the distribution position of the first elastic element 310, after the snap-fit ​​200 is installed on the test body 100, the initial deformation of the first elastic element 310 is reasonably set so that the first elastic element 310 has a better supporting effect on the snap-fit ​​200.

[0083] like Figure 5 As shown, in some embodiments, the test body 100 is provided with a strip-shaped limiting hole 600, which extends along the sliding direction of the snap-fit ​​member 200.

[0084] The snap-fit ​​component 200 is provided with a limiting component 700, at least a portion of which is located within the strip-shaped limiting hole 600.

[0085] In this embodiment, a sleeve 110 can be formed at both ends of the test body 100 in the extending direction, so that the end of the snap-fit ​​member 200 facing the test body 100 extends into the sleeve 110. On this basis, a strip-shaped limiting hole 600 is formed on the sleeve 110, and the strip-shaped limiting hole 600 extends along the sliding direction of the snap-fit ​​member 200.

[0086] Secondly, a limiting member 700 is provided on the snap-fit ​​member 200. The limiting member 700 can be a pin inserted into the snap-fit ​​member 200 or a screw threaded onto the snap-fit ​​member 200. It is sufficient that at least a portion of the limiting member 700 extends into the strip-shaped limiting hole 600. For example, one end of the limiting member 700 may be located within the strip-shaped limiting hole 600.

[0087] Therefore, when the snap-fit ​​200 slides relative to the test body 100, the strip-shaped limiting hole 600 can limit the sliding range of the limiting member 700, thereby limiting the sliding range of the snap-fit ​​200 and reducing the possibility of the snap-fit ​​200 falling off the test body 100.

[0088] like Figure 2 and Figure 5 As shown, the snap-fit ​​component 200 is further provided with a plurality of mounting holes 210, which are distributed along the sliding direction of the snap-fit ​​component 200, and the limiting component 700 is engaged with any one of the mounting holes 210.

[0089] In other words, the limiting member 700 can be fitted to any of the mounting holes 210 by plugging, threading or other means, so that the limiting member 700 can be detachably mounted on the snap-fit ​​member 200.

[0090] During use, the limiting member 700 can be installed in the mounting holes 210 at different positions according to actual needs. Subsequently, the limiting member 700 can limit its sliding range through the strip-shaped limiting hole 600. Thus, the sliding range of the snap-fit ​​member 200 and the compressible range of the elastic member 300 can be adjusted accordingly, thereby adjusting the range of changeable elastic force of the elastic member 300 to ensure that the snap-fit ​​member 200 can be stably snapped into the mounting groove.

[0091] like Figure 1 As shown, in some embodiments, the test body 100 can be divided into a first segment 120, a second segment 130, a third segment 140, and two telescopic segments 150, and the first segment 120, the telescopic segment 150, the second segment 130, the telescopic segment 150, and the third segment 140 are connected sequentially. Two snap-fit ​​pieces 200 are slidably disposed on the first segment 120 and the third segment 140 respectively. It is understood that the sleeve 110 is disposed on either the first segment 120 or the third segment 140.

[0092] It should be noted that the telescopic section 150 is a telescopic rod, and the telescopic rod can adopt the structure of existing telescopic rods without limitation. For example, the telescopic rod can be two rods or pipes that slide against each other, and then locked by bolts or pins to adjust the length of the telescopic rod.

[0093] Based on this, in actual use, the length of the telescopic section 150 can be adjusted according to actual needs, thereby adjusting the total length of the test body 100 to adapt to the two mounting slots with different spacing on the frame, ensuring that the snap-fit ​​part 200 can be snapped into the mounting slot, and at the same time improving the applicability of the test fixture.

[0094] In summary, the photovoltaic module testing fixture provided in this application embodiment allows at least three elastic members 300 to simultaneously support the snap-fit ​​member 200 from multiple directions during use. This ensures that the snap-fit ​​member 200 is more securely snapped into the mounting slot, enhancing the load-bearing capacity of the testing fixture. Furthermore, when the photovoltaic module is heavy, the snap-fit ​​member 200 is less likely to shift relative to the test body 100, reducing the possibility of one end of the snap-fit ​​member 200 falling out of the mounting slot and decreasing the likelihood of the testing fixture tipping over on the frame. This improves the stability of the testing fixture on the frame and solves the problem of poor stability of testing fixtures on the frame in related technologies.

[0095] Finally, it should be noted that other embodiments of this utility model will readily conceive of by those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A testing fixture for photovoltaic modules, characterized in that, include: Test body (100), the test body (100) is used to connect photovoltaic modules; At least two snap-fit ​​pieces (200) are slidably disposed at both ends of the test body (100), and the snap-fit ​​pieces (200) are used to snap into the mounting slots of the frame; At least three elastic elements (300) are provided between the test body (100) and the snap-fit ​​component (200). The elastic elements (300) connect the test body (100) and the snap-fit ​​component (200). At least one of the elastic elements (300) is not distributed on the same straight line as any other two elastic elements (300).

2. The testing fixture for photovoltaic modules according to claim 1, characterized in that, It also includes at least one adjusting member (500), which is slidably disposed on the snap-fit ​​member (200) or the test body (100), and the adjusting member (500) is connected to the elastic member (300); The adjusting member (500) is configured to slide relative to the snap-fit ​​member (200) or the test body (100) to adjust the initial deformation of the elastic member (300).

3. The testing fixture for photovoltaic modules according to claim 2, characterized in that, The adjusting member (500) includes an abutment (510) and a locking pin (520). The abutment (510) is slidably disposed on the snap-fit ​​member (200). One end of the elastic member (300) facing the snap-fit ​​member (200) is connected to the abutment (510). The abutment (510) is provided with a plurality of positioning holes (511) distributed along the sliding direction of the abutment (510), and the locking pin (520) is provided on the snap-fit ​​member (200), and the locking pin (520) is inserted into any one of the positioning holes (511).

4. The testing fixture for photovoltaic modules according to claim 1, characterized in that, At least three elastic elements (300) include a first elastic element (310) and two second elastic elements (320), the two second elastic elements (320) being distributed along the width direction of the test body (100), and the first elastic element (310) being distributed on one side of the line where the two second elastic elements (320) are located.

5. The testing fixture for photovoltaic modules according to claim 4, characterized in that, The distances from the first elastic element (310) to the two second elastic elements (320) are equal.

6. The testing fixture for photovoltaic modules according to claim 1, characterized in that, The snap-fit ​​component (200) is provided with a guide rod (400), which passes through and is slidably connected to the test body (100).

7. The testing fixture for photovoltaic modules according to claim 6, characterized in that, The elastic element (300) is a spring, and the two ends of the spring in the extension direction are respectively connected to the test body (100) and the snap-fit ​​element (200).

8. The testing fixture for photovoltaic modules according to claim 7, characterized in that, At least three guide rods (400) are provided, and the springs are coaxially sleeved on the guide rods (400).

9. The testing fixture for photovoltaic modules according to any one of claims 1-8, characterized in that, The test body (100) is provided with a strip-shaped limiting hole (600), which extends along the sliding direction of the snap-fit ​​member (200); The snap-fit ​​member (200) is provided with a limiting member (700), at least a portion of which is located within the strip-shaped limiting hole (600).

10. The testing fixture for photovoltaic modules according to claim 9, characterized in that, The snap-fit ​​member (200) is provided with a plurality of mounting holes (210), which are distributed along the sliding direction of the snap-fit ​​member (200), and the limiting member (700) is engaged with any one of the mounting holes (210).

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