An iv test fixture for a composite bezel assembly
By designing an IV test fixture suitable for composite frames, and utilizing a clamping mechanism and plug-in connection, the problem of existing fixtures being unable to stably clamp shorter C-side frames was solved, achieving more efficient testing and reduced costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHANGBO ENERGY TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-12
AI Technical Summary
Existing IV test fixtures cannot effectively hold composite frame structures with short C-sides, leading to unstable testing and affecting test accuracy and efficiency.
A clamping mechanism was designed, comprising a contact plate, an upper pressure block, bolts, threaded holes, a connecting plate, springs, and clamping blocks. The clamping blocks are driven to clamp the composite frame assembly by rotating the bolts, and the clamping stability is improved by spring tension. Combined with the plug-in connection method of slots and plugs, quick installation and disassembly are achieved.
This ensures stable clamping of the composite frame assembly, reduces shaking and displacement during testing, improves the accuracy and efficiency of IV testing, and lowers production costs.
Smart Images

Figure CN224347724U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of photovoltaic module testing equipment, and specifically relates to an IV test fixture for composite frame modules. Background Technology
[0002] In the production and testing process of the photovoltaic industry, IV testing is a key step in evaluating the performance of photovoltaic modules. It uses a solar simulator to irradiate the photovoltaic panel and a digital source meter to measure the IV characteristic curve. The IV test fixture is an important tool for implementing this test, and its performance and applicability directly affect the accuracy and reliability of the test results.
[0003] Traditional photovoltaic (PV) modules have a relatively simple frame structure, typically with a long C-side. Most existing IV test fixtures are designed for this traditional frame structure, providing good clamping for testing purposes. However, with the continuous development and innovation of PV technology, composite frame structures have emerged. Composite frames have a shorter C-side, significantly different from traditional frame structures. Due to structural design limitations, existing IV test fixtures cannot effectively clamp composite frame modules, leading to unstable clamping and test piece displacement during testing. This affects the accuracy and efficiency of IV testing, failing to meet the testing requirements of new PV modules. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing an IV test fixture for composite frame components that can effectively clamp composite frame test pieces with short C-sides, ensuring clamping stability and reliability, and offering convenient and quick operation.
[0005] The objective of this utility model can be achieved through the following technical solution: an IV test fixture for a composite frame assembly, comprising a contact plate, characterized in that an upper pressure block is movably connected to the surface of the contact plate, a clamping mechanism is installed at the bottom of the contact plate, the clamping mechanism includes a bolt, a threaded hole is opened at the bottom of the contact plate, the top of the bolt extends into the inner cavity of the threaded hole and is threadedly connected to the threaded hole, a connecting plate and a spring are respectively sleeved on the surface of the bolt, a clamping block is provided on one side of the connecting plate, and the top of the clamping block clamps the composite frame assembly body.
[0006] By setting up an abutment plate, upper pressure block, bolts, threaded holes, connecting plate, springs, and clamping blocks, rotating the bolts causes the clamping blocks to move upwards, thus clamping and fixing the composite frame assembly body. The springs tension the clamping blocks, improving the clamping effect. This effectively clamps composite frame test pieces with shorter C-sides, ensuring clamping stability and reliability, reducing shaking and displacement of the test pieces during testing, thereby improving the accuracy of IV testing. Operators can perform IV testing more quickly and smoothly, effectively improving testing efficiency and reducing production costs.
[0007] In the aforementioned IV test fixture for a composite frame assembly, the connecting plate is movably connected to the bolt, and the top of the spring contacts the connecting plate. By incorporating the spring, its tensioning effect can be better utilized, ensuring that the clamping force of the clamping block on the composite frame assembly body is uniform and stable, further improving the clamping effect and enhancing the reliability of the IV test.
[0008] In the aforementioned IV test fixture for a composite frame assembly, the top of the abutment plate has a groove, and a support rod is fixedly connected to the inner cavity of the groove. A connecting block and a torsion spring are respectively fitted onto the surface of the support rod, with the torsion spring located between two connecting blocks. One side of each connecting block is fixedly connected to an upper pressure block. By providing the groove, support rod, and torsion spring, the upper pressure block can rotate at a certain angle around the support rod. The torsion spring provides a certain elastic restoring force to the upper pressure block, allowing it to remain in a suitable position when not subjected to external force. Furthermore, when clamping the test piece is required, it can better conform to the surface of the test piece, enhancing the fixation effect.
[0009] In the aforementioned IV test fixture for a composite frame assembly, one end of the torsion spring contacts the abutment plate, and the other end contacts the upper pressure block. A lever is fixedly connected to the top of the upper pressure block, and the surface of the lever is provided with anti-slip protrusions. The torsion spring generates torque on the upper pressure block, facilitating its rapid return to its original position. The lever and anti-slip protrusions allow the operator to easily rotate the upper pressure block by moving the lever. The anti-slip protrusions increase the friction between the hand and the lever, making operation more convenient and effortless, thus improving the fixture's usability.
[0010] In the aforementioned IV test fixture for a composite frame assembly, a slot is provided on the surface of the connecting plate, and an insert is fixedly connected to one side of the clamping block, with one side of the insert extending into the inner cavity of the slot. By providing the slot and insert, the plug-in connection method makes the installation and removal of the clamping block and the connecting plate more convenient and quick, while also providing positioning support for the clamping block and improving its stability.
[0011] In the aforementioned IV test fixture for a composite frame assembly, the insert block has a locking hole on its surface, and a threaded rod is connected through the bottom of the connecting plate. The top of the threaded rod passes through both the connecting plate and the locking hole, and the threaded rod is threadedly connected to the connecting plate. By providing the locking hole and the threaded rod, and by rotating the threaded rod to insert it into the locking hole, the insert block can be firmly fixed in the slot, preventing it from falling off the connecting plate during use. This further enhances the connection stability between the clamping block and the connecting plate, while also facilitating the disassembly and replacement of the clamping block. Replacing the clamping block with different specifications allows for clamping test pieces of different specifications, thus improving the applicability of the test fixture.
[0012] Compared with existing technologies, the advantages of this IV test fixture for composite frame components are as follows: it clamps and fixes the composite frame component body, and the spring tensions the clamping blocks, improving the clamping effect of the clamping blocks. It can effectively clamp composite frame test pieces with shorter C-sides, ensuring the stability and reliability of clamping, reducing the shaking and displacement of test pieces during testing, thereby improving the accuracy of IV testing. Operators can perform IV testing more quickly and smoothly, effectively improving testing efficiency and reducing production costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the IV test fixture for this composite frame assembly.
[0014] Figure 2 This is a rear view structural diagram of the IV test fixture for this composite frame assembly.
[0015] Figure 3 This is a bottom view of the IV test fixture for this composite frame assembly.
[0016] Figure 4 This is a cross-sectional view of the IV test fixture for this composite frame assembly.
[0017] Figure 5 This is a schematic diagram of the contact plate and threaded hole of the IV test fixture for this composite frame assembly.
[0018] Figure 6 This is an exploded view of the slots and inserts of the IV test fixture for this composite frame assembly.
[0019] In the diagram, 1. Abutment plate; 2. Upper pressure block; 3. Clamping mechanism; 30. Bolt; 31. Threaded hole; 32. Connecting plate; 33. Spring; 34. Clamping block; 4. Composite frame assembly body; 5. Groove; 6. Support rod; 7. Connecting block; 8. Torsion spring; 9. Dial plate; 10. Slot; 11. Insertion block; 12. Locking hole; 13. Threaded rod. Detailed Implementation
[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0021] like Figures 1-6 As shown, the IV test fixture for this composite frame assembly includes an abutment plate 1, an upper pressure block 2 is movably connected to the surface of the abutment plate 1, a clamping mechanism 3 is installed at the bottom of the abutment plate 1, the clamping mechanism 3 includes a bolt 30, a threaded hole 31 is opened at the bottom of the abutment plate 1, the top of the bolt 30 extends into the inner cavity of the threaded hole 31 and is threadedly connected to the threaded hole 31, a connecting plate 32 and a spring 33 are respectively sleeved on the surface of the bolt 30, a clamping block 34 is provided on one side of the connecting plate 32, and the top of the clamping block 34 clamps the composite frame assembly body 4.
[0022] To elaborate further, the connecting plate 32 is movably connected to the bolt 30, and the top of the spring 33 contacts the connecting plate 32. The top of the abutment plate 1 has a groove 5, and a support rod 6 is fixedly connected to the inner cavity of the groove 5. A connecting block 7 and a torsion spring 8 are respectively sleeved on the surface of the support rod 6. The torsion spring 8 is located between the two connecting blocks 7, and one side of the connecting block 7 is fixedly connected to the upper pressure block 2.
[0023] One end of the torsion spring 8 contacts the abutment plate 1, and the other end of the torsion spring 8 contacts the upper pressure block 2. The top of the upper pressure block 2 is fixedly connected to the lever plate 9, and the surface of the lever plate 9 is provided with anti-slip protrusions.
[0024] The surface of the connecting plate 32 has a slot 10. One side of the clamping block 34 is fixedly connected to the insert block 11, and one side of the insert block 11 extends into the inner cavity of the slot 10. The surface of the insert block 11 has a locking hole 12. The bottom of the connecting plate 32 is connected through a threaded rod 13, and the top of the threaded rod 13 passes through the connecting plate 32 and the locking hole 12 respectively. The threaded rod 13 is threadedly connected to the connecting plate 32.
[0025] In use, press the lever 9 to rotate the upper pressure block 2, place the composite frame assembly body 4 on top of the clamping block 34, release the lever 9, and the upper pressure block 2 returns to its original position to clamp and fix the composite frame assembly body 4. Rotate the bolt 30 to compress the spring 33, and the spring 33 tensions the clamping block 34, which can adjust the clamping force of the clamping block 34 and prevent the composite frame assembly body 4 from shaking or shifting during the test. When replacing the clamping block 34, rotate the threaded rod 13 to move the threaded rod 13 downward and separate it from the card hole 12. Moving the clamping block 34 drives the insertion block 11 to move, so that the insertion block 11 is separated from the slot 10 and disassembled. Replacing the clamping block 34 with different specifications can clamp composite frame assemblies of different specifications.
[0026] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. An IV test fixture for a composite frame assembly, comprising a contact plate (1), characterized in that: The surface of the abutment plate (1) is movably connected to an upper pressure block (2). A clamping mechanism (3) is installed at the bottom of the abutment plate (1). The clamping mechanism (3) includes a bolt (30). A threaded hole (31) is opened at the bottom of the abutment plate (1). The top of the bolt (30) extends into the inner cavity of the threaded hole (31) and is threadedly connected to the threaded hole (31). A connecting plate (32) and a spring (33) are respectively sleeved on the surface of the bolt (30). A clamping block (34) is provided on one side of the connecting plate (32). The top of the clamping block (34) clamps the composite frame assembly body (4).
2. The IV test fixture for a composite frame assembly according to claim 1, characterized in that: The connecting plate (32) is movably connected to the bolt (30), and the top of the spring (33) is in contact with the connecting plate (32).
3. The IV test fixture for a composite frame assembly according to claim 1, characterized in that: The top of the abutment plate (1) is provided with a groove (5), and a support rod (6) is fixedly connected to the inner cavity of the groove (5). A connecting block (7) and a torsion spring (8) are respectively sleeved on the surface of the support rod (6). The torsion spring (8) is located between the two connecting blocks (7). One side of the connecting block (7) is fixedly connected to the upper pressure block (2).
4. The IV test fixture for a composite frame assembly according to claim 3, characterized in that: One end of the torsion spring (8) is in contact with the abutment plate (1), and the other end of the torsion spring (8) is in contact with the upper pressure block (2). The top of the upper pressure block (2) is fixedly connected with a lever plate (9), and the surface of the lever plate (9) is provided with anti-slip protrusions.
5. The IV test fixture for a composite frame assembly according to claim 1, characterized in that: The surface of the connecting plate (32) is provided with a slot (10), and a plug (11) is fixedly connected to one side of the clamp (34), with one side of the plug (11) extending into the inner cavity of the slot (10).
6. The IV test fixture for a composite frame assembly according to claim 5, characterized in that: The surface of the insert (11) is provided with a locking hole (12), and the bottom of the connecting plate (32) is connected to a threaded rod (13). The top of the threaded rod (13) passes through the connecting plate (32) and the locking hole (12) respectively, and the threaded rod (13) is threadedly connected to the connecting plate (32).