Photovoltaic test contact clamp mechanism

Abstract

The utility model belongs to the technical field of battery piece testing, and particularly relates to a photovoltaic testing contact clamp mechanism which comprises a supporting frame, Z-shaped supporting plates are fixedly installed on the left side and the right side in the supporting frame, and a connecting plate is arranged between the two Z-shaped supporting plates. A mounting assembly is jointly arranged between the interior of the connecting plate and the side face of the Z-shaped supporting plate, a plurality of sets of evenly-distributed silver-plated strips are fixedly mounted at the bottom of the connecting plate, and a limiting plate is fixedly mounted at the bottom of the connecting plate; according to the utility model, a conventional probe row is replaced by the silver-plated strip with very narrow thickness, and the requirement of full contact of the main grid of the battery piece can be met, so that the probe can be in full contact with the battery piece, the test precision is increased, and the mechanism adopts a fixed mechanism, is high in consistency with the main grid of the battery piece, is good in stability, and is suitable for large-scale popularization and application. And the silver-plated strip is limited through the limiting groove in the limiting plate, and the silver-plated strip is prevented from shaking when being attached to the battery piece.

Description

Technical Field

[0001] This utility model relates to the field of solar cell testing technology, specifically a photovoltaic testing contact fixture mechanism. Background Technology

[0002] Both shingled solar cells and SMBB solar cells are photovoltaic cells. After production, shingled solar cells need to be tested using testing instruments to assess their performance. During the testing process, the probe array on the testing instrument is in direct contact with the shingled solar cells. Similarly, probe arrays are also required when testing SMBB solar cells.

[0003] Currently, probe arrays used for testing solar cells mainly consist of two arrays, one above the other, each with the same number of probes. During testing, the probes on the two arrays contact the electrical terminals of the solar cell to collect measurement information. The probe arrays described above are capable of collecting information about the solar cell during the measurement process.

[0004] However, existing test probe arrays have a large number of probes, and during the measurement process, some probes cannot make sufficient contact with the solar cell. Furthermore, when dealing with SMBB solar cells, conventional probe arrays cannot achieve full pressure due to width limitations. Moreover, when using a large number of probe arrays, EL (Electrical Energy) blockage is severe, making it impossible to achieve IEL integration. This also reduces the actual contact area between the probe array and the solar cell, significantly reducing the final measurement accuracy of the solar cell and increasing the consumption of probes. Therefore, a photovoltaic test contact fixture mechanism is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a photovoltaic testing contact fixture mechanism.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a photovoltaic test contact fixture mechanism, including a support frame;

[0007] Z-shaped support plates are fixedly installed on both the left and right sides inside the support frame. A connecting plate is provided between the two Z-shaped support plates. An installation component is provided inside the connecting plate and between the sides of the Z-shaped support plates. Multiple sets of evenly distributed silver-plated strips are fixedly installed at the bottom of the connecting plate. A limiting plate is fixedly installed at the bottom of the connecting plate. Multiple sets of evenly distributed and through-type limiting grooves are opened inside the limiting plate. The bottom of the silver-plated strips passes through the limiting grooves.

[0008] Preferably, the bottom of the limiting plate and the bottom of the Z-shaped support plate are on the same horizontal plane.

[0009] Preferably, the silver-plated strip and the limiting plate are both fixedly installed by external bolts and nuts and connecting plates.

[0010] Preferably, the connecting plate is made of optical glass.

[0011] Preferably, the connecting plate is mounted between two Z-shaped support plates via a mounting assembly.

[0012] Preferably, the mounting assembly includes sliding grooves formed on the left and right sides inside the connecting plate. A sliding plate one and a sliding plate two are slidably connected inside the sliding grooves. A horizontal plate is fixedly connected between the sliding plate one and the sliding plate two. A mounting plate is fixedly connected to one side of the sliding plate one. A spring is fixedly connected between the sliding plate two and the sliding groove. A through groove is formed on the upper surface inside the sliding groove. A vertical plate is fixedly connected to the top of the horizontal plate. The top of the vertical plate passes through the through groove. A mounting groove is formed on the side of the Z-shaped support plate. One side of the mounting plate is inserted into the mounting groove.

[0013] Preferably, the top of the vertical plate extends through the top of the connecting plate and is fixedly connected to a handle.

[0014] The advantages of this utility model are:

[0015] 1. This utility model replaces the conventional probe array with a very narrow silver-plated strip, achieving full contact with the main grid of the solar cell. This allows for sufficient contact between the probe and the solar cell, increasing testing accuracy. The mechanism is fixed, ensuring high consistency with the main grid of the solar cell and good stability. The silver-plated strip is limited by the limiting groove inside the limiting plate, preventing it from shaking when in contact with the solar cell. The silver-plated strip itself is very short, enabling integrated IV and EL testing with minimal obstruction, facilitating camera photography.

[0016] 2. This utility model facilitates the disassembly and replacement of the connecting plate, limiting plate, and silver-plated strip as a whole through the installation components, thereby making the mechanism adaptable to different types of battery cell testing, and enabling the mechanism to meet more usage needs, and has strong practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure in Example 1;

[0019] Figure 2 As in Example 1 Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 This is a top view of the structure in Embodiment 1;

[0021] Figure 4 This is a schematic diagram of a partial cross-section of the structure in Example 1;

[0022] Figure 5 As in Example 1 Figure 4 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Support frame; 2. Z-shaped support plate; 3. Connecting plate; 4. Limiting plate; 5. Silver-plated strip; 6. Limiting groove; 7. Mounting assembly; 701. Handle plate; 702. Mounting groove; 703. Mounting plate; 704. Slide groove; 705. Slide plate one; 706. Horizontal plate; 707. Slide plate two; 708. Spring; 709. Through groove; 710. Vertical plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-5 As shown, a photovoltaic test contact fixture mechanism includes a support frame 1;

[0027] Z-shaped support plates 2 are fixedly installed on both the left and right sides inside the support frame 1. A connecting plate 3 is provided between the two Z-shaped support plates 2. An installation component 7 is provided inside the connecting plate 3 and between the sides of the Z-shaped support plates 2. Multiple sets of evenly distributed silver-plated strips 5 are fixedly installed at the bottom of the connecting plate 3. A limiting plate 4 is fixedly installed at the bottom of the connecting plate 3. Multiple sets of evenly distributed and through-type limiting grooves 6 are opened inside the limiting plate 4. The bottom of the silver-plated strips 5 penetrates through the limiting grooves 6. In operation, the support frame 1 is set as the upper pin row of the test probe row assembly. A very narrow silver-plated strip 5 is used instead of a conventional probe row. The silver-plated strip 5 is silver-plated at the bottom and can meet the requirement of full contact of the main grid of the battery cell (including NBB and SMBB battery cells). This allows the probe to make contact with the main grid of the battery cell. The mechanism ensures full contact between the solar cells, increasing testing accuracy. Its fixed design ensures high consistency with the solar cell grid, resulting in good stability. The silver-plated strip 5 is positioned using the limiting groove 6 inside the limiting plate 4, preventing it from wobbling when in contact with the solar cells, thus enhancing stability. The low height of the silver-plated strip 5 allows for integrated IV and EL testing with minimal obstruction, facilitating camera capture. The connecting plate 3, limiting plate 4, and silver-plated strip 5 are mounted together via the mounting assembly 7 and two Z-shaped support plates 2. The mounting assembly 7 facilitates easy disassembly and replacement of the entire assembly, allowing the mechanism to adapt to different types of solar cells and meet a wider range of application needs, making it highly practical.

[0028] The bottom of the limiting plate 4 is on the same horizontal plane as the bottom of the Z-shaped support plate 2; during operation, it facilitates the bottom of the silver-plated strip 5 to adhere to the outer surface of the battery cell.

[0029] The silver-plated strip 5 and the limiting plate 4 are both fixedly installed by external bolts and nuts and connecting plate 3; during operation, the silver-plated strip 5 is fixedly installed by the threaded connection of the bolts through the corresponding holes and nuts.

[0030] The connecting plate 3 is made of optical glass. During operation, the use of optical glass in the connecting plate 3 can ensure both the spectrum and flatness.

[0031] The connecting plate 3 is installed between the two Z-shaped support plates 2 via the mounting assembly 7; during operation, it facilitates the installation and disassembly of the connecting plate 3 and the Z-shaped support plates 2.

[0032] The mounting assembly 7 includes sliding grooves 704 formed on the left and right sides inside the connecting plate 3. A sliding plate 705 and a sliding plate 707 are slidably connected inside the sliding grooves 704. A horizontal plate 706 is fixedly connected between the sliding plate 705 and the sliding plate 707. A mounting plate 703 is fixedly connected to one side of the sliding plate 705. A spring 708 is fixedly connected between the sliding plate 707 and the sliding groove 704. A through groove 709 is formed on the upper surface inside the sliding groove 704. A vertical plate 710 is fixedly connected to the top of the horizontal plate 706, and the top of the vertical plate 710 passes through the through groove 709. A mounting groove 702 is formed on the side of the Z-shaped support plate 2, and one side of the mounting plate 703 is inserted into the mounting groove 702. During operation, the vertical plate 710 is pulled to move through the through groove 702. The groove 709 moves downwards, and the movement of the vertical plate 710 drives the horizontal plate 706 to move inside the sliding groove 704. Then, the movement of the horizontal plate 706 can drive the sliding plate 1 705 and the sliding plate 2 707 to slide simultaneously inside the sliding groove 704. The sliding of the sliding plate 1 705 drives the mounting plate 703 to move, and causes one side of the mounting plate 703 to move out of the mounting groove 702 and detach from the limiting installation of the connecting plate 3. This makes it easy to disassemble and replace the connecting plate 3, the limiting plate 4, and the silver-plated strip 5 as a whole. When the sliding plate 2 707 slides, it can compress the spring 708, so that the spring 708 has a rebound force. The rebound force of the spring 708 facilitates the reset of the mounting plate 703 when the connecting plate 3 is reinstalled, and facilitates the reset of the mounting plate 703 to slide and insert into the mounting groove 702 to install the connecting plate 3.

[0033] Example 2

[0034] Please see Figure 5 As shown in the first embodiment, as another implementation of the present invention, the top of the vertical plate 710 extends through the top of the connecting plate 3 and is fixedly connected to a handle 701; during operation, the handle 701 facilitates the movement of the vertical plate 710.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A photovoltaic test contact clamp mechanism, comprising a support frame (1); characterized in that Both left and right sides of the inside of the support frame (1) are fixedly provided with Z-shaped support plates (2), and a connecting plate (3) is arranged between the two Z-shaped support plates (2); an installation assembly (7) is arranged between the inside of the connecting plate (3) and the side surface of the Z-shaped support plate (2); a plurality of groups of silver-plated strips (5) are fixedly arranged on the bottom of the connecting plate (3); a limiting plate (4) is fixedly arranged on the bottom of the connecting plate (3); a plurality of groups of limiting grooves (6) are arranged in the limiting plate (4) and penetrate through the limiting plate (4); and the bottom of the silver-plated strip (5) penetrates through the limiting groove (6).

2. A photovoltaic test contact fixture mechanism according to claim 1, wherein: The bottom of the limiting plate (4) is in the same horizontal plane as the bottom of the Z-shaped support plate (2).

3. A photovoltaic test contact fixture mechanism according to claim 2, wherein: The silver-plated strip (5) and the limiting plate (4) are fixedly installed with the connecting plate (3) through external bolts, nuts and the connecting plate (3).

4. A photovoltaic test contact fixture mechanism according to claim 3, wherein: The connecting plate (3) is made of optical glass.

5. A photovoltaic test contact fixture mechanism according to claim 4, wherein: The connecting plate (3) is installed between the two Z-shaped support plates (2) through the installation assembly (7).

6. A photovoltaic test contact fixture mechanism according to claim 5, wherein: The installation assembly (7) comprises a sliding groove (704) arranged on both left and right sides of the inside of the connecting plate (3); a sliding plate one (705) and a sliding plate two (707) are slidably connected in the sliding groove (704); a horizontal plate (706) is fixedly connected between the sliding plate one (705) and the sliding plate two (707); an installation plate (703) is fixedly connected to one side of the sliding plate one (705); a spring (708) is fixedly connected between the sliding plate two (707) and the sliding groove (704); a through groove (709) is arranged on the upper surface of the sliding groove (704); a vertical plate (710) is fixedly connected to the top of the horizontal plate (706); the vertical plate (710) penetrates through the through groove (709); an installation groove (702) is arranged on the side surface of the Z-shaped support plate (2); and one side of the installation plate (703) is inserted into the installation groove (702).

7. A photovoltaic test contact fixture mechanism according to claim 6, wherein: The top of the vertical plate (710) penetrates through the top of the connecting plate (3), and a handle plate (701) is fixedly connected.

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