EL test probe assembly

Abstract

The utility model discloses an EL test probe assembly, which comprises a connecting track, adjusting assemblies are arranged on the front wall of the connecting track, and fixing assemblies are arranged on the front walls of the adjusting assemblies. According to the EL test probe assembly, the probe body drives the cross block to be placed in the mounting cavity in the fixed seat, the cover plate drives the sealing block to enter the inner wall of the mounting cavity to clamp and limit the cross block, and the connecting block drives the elastic plate and the circular seat to enter the inner wall of the limiting seat. The elastic plate is pressed to drive the circular seat to get close to the connecting block and enter the circular limiting groove, and the probe body is in telecommunication connection with an external EL tester through the data connecting line, so that probes of different specifications can be replaced when different solar photovoltaic modules are tested, the detection applicability can be matched, and the detection efficiency is improved. And moreover, the overall replacement mode is simple and convenient, the required time is short, and the probe is convenient to use by a worker.

Description

Technical Field

[0001] The utility model relates to the technical field of EL testing, in particular to an EL testing probe assembly. Background Art

[0002] The full name of the EL tester is the electroluminescence tester, which is an internal defect detection device for solar cells or battery modules. It is often used to detect internal defects, hidden cracks, fragments, virtual soldering, broken grids and abnormal phenomena of single cells with different conversion efficiencies in solar cell modules. It has the advantages of high sensitivity, fast detection speed and intuitive and vivid results. It is a key device to improve the quality of photovoltaic modules. When using the EL tester to detect modules, probes are needed to be pressed onto the positive and negative electrodes of the solar photovoltaic module for detection.

[0003] In the patent with the patent number CN202022519409.8, a probe base for EL testing is disclosed, which includes a first box body 9 and a second box body 10. There are a first wiring terminal 1 and a first probe 13 on the first box body 9, a second wiring terminal 2 and a second probe 14 are installed on the second box body 10. A third probe 11 and a fifth probe 12 are also installed at the bottom of the first box body 9, and a fourth probe 16 and a sixth probe 15 are also installed on the second box body 10. The first probe 13 is connected to the first wiring terminal 1 through a first switch 3, the third probe 11 is connected to the first wiring terminal 1 through a second switch 5, and the fifth probe 12 is connected to the first wiring terminal 1 through a third switch 7; the second probe 14 is connected to the second wiring terminal 2 through a fourth switch 4, the fourth probe 16 is connected to the second wiring terminal 2 through a fifth switch 6, and the sixth probe 15 is connected to the second wiring terminal 2 through a sixth switch 8. The interval width between adjacent probes on each box body is set according to the width between the leads of the 6-lead solar module.

[0004] The above device has certain deficiencies when in use: when the above device is used for EL testing of solar photovoltaic modules, first, the lengths of the respective probes are fixed and non-replaceable. Different lengths of probes are required when testing different solar photovoltaic modules, and the distance between the probes needs to be adjusted to match the positions of the positive and negative electrodes of the solar photovoltaic module. There may be a situation where it cannot be replaced and is not applicable when using the above device.

[0005] Therefore, the utility model provides an EL testing probe assembly to solve the above problems. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides an EL testing probe assembly to solve the above problems.

[0007] To achieve the above object, the present utility model is realized through the following technical solutions: An EL test probe assembly includes a connection track, an adjustment assembly is installed on the front wall of the connection track, a fixing assembly is installed on the front wall of the adjustment assembly, a probe body is installed inside the fixing assembly, and the probe body is electrically connected to an external EL tester through a data connection line;

[0008] The fixing assembly includes a fixing seat, an installation cavity is opened inside the fixing seat, a cross-shaped block is installed inside the installation cavity, a cover plate is hingedly installed on the front wall of the fixing seat, a sealing block is installed on the rear wall of the cover plate corresponding to the position of the installation cavity, a limiting seat is installed on the side wall of the fixing seat, circular limiting grooves are opened on the inner top wall and the bottom wall of the limiting seat, a connection block is hingedly installed on the side wall of the cover plate, elastic plates are fixedly connected to the top wall and the bottom wall of the connection block, and circular seats are fixedly connected to the mutually separated sides of the rear parts of the elastic plates.

[0009] Through the above technical solutions, the setting of the fixing assembly can quickly and conveniently replace the probe body with a suitable specification, and then it can be applicable to detecting different solar photovoltaic modules, improving the applicability of the entire device.

[0010] Further, the rear wall of the fixing seat is fixedly connected to the front wall of the adjustment assembly, the installation cavity is cross-shaped, the outer wall of the cross-shaped block fits with the inner wall of the installation cavity, and the bottom end of the cross-shaped block is fixedly connected to the top end of the probe body.

[0011] Through the above technical solutions, the cross-shaped block drives the probe body into the installation cavity for installation and fixation.

[0012] Further, the sealing block is cross-shaped, the outer walls of the sealing block all fit with the inner wall of the installation cavity, the outer walls of the sealing block are all abutted against the front wall of the cross-shaped block, the sealing block is made of rubber, the limiting seat is U-shaped, the elastic plate is L-shaped, and the outer walls of the circular seats all fit with the inner walls of the corresponding circular limiting grooves.

[0013] Through the above technical solutions, the sealing block abuts against the front wall of the cross-shaped block to prevent the cross-shaped block from shaking inside the installation cavity. The sealing block is made of rubber, which can increase the friction with the inside of the installation cavity and the cross-shaped block.

[0014] Further, the adjustment assembly includes two sliding blocks, both sliding blocks are T-shaped, T-shaped grooves are opened on the front wall of the connection track, the outer walls of the two sliding blocks are slidably connected to the inner walls of the T-shaped grooves, installation blocks are fixedly connected to the front walls of the two sliding blocks, limiting cavities are opened at the top and bottom of the installation blocks, chutes are opened on the inner top wall and the bottom wall of the limiting cavities, and through grooves are fixedly connected to the top wall and the bottom wall of the installation blocks corresponding to the positions of the chutes.

[0015] Through the above technical solution, both sliding blocks slide on the inner walls of the corresponding T-shaped grooves and drive the mounting blocks to slide.

[0016] Furthermore, springs are installed on the front walls of the limiting cavities, circular blocks are installed at the rear ends of the springs, the outer walls of the circular blocks are slidably connected to the inner walls of the corresponding limiting cavities, moving blocks are fixedly connected to the outer walls of the circular blocks at positions corresponding to the chutes, the outer walls of the moving blocks are slidably connected to the inner walls of the corresponding chutes, operating blocks are fixedly connected to the sides of the moving blocks away from each other, the outer walls of the operating blocks are slidably connected to the inner walls of the corresponding through grooves, and positioning pins are fixedly connected to the rear walls of the circular blocks.

[0017] Through the above technical solution, the operating blocks drive the moving blocks to slide on the inner walls of the chutes and drive the circular blocks to slide inside the limiting cavities to compress the springs.

[0018] Furthermore, a plurality of positioning ports are formed in the front wall of the connecting track at positions above and below the T-shaped groove.

[0019] Through the above technical solution, the positioning ports are mainly used in cooperation with the positioning pins.

[0020] Furthermore, the rear ends of the positioning pins slidably penetrate through the mounting blocks and are in fit with the inner walls of the corresponding positioning ports.

[0021] Through the above technical solution, the positioning pins enter the inner walls of the corresponding positioning ports, and thus the mounting blocks can be limited.

[0022] Furthermore, connecting seats are fixedly connected to the left and right sides of the top and bottom walls of the connecting track, bolts are screwed and installed on the front walls of the connecting seats, and the bolts are screwed and installed on an external EL tester.

[0023] Through the above technical solution, the connecting seats and the bolts can cooperate with each other to install the entire device on the EL tester for use.

[0024] Beneficial effects

[0025] The utility model provides an EL test probe assembly. Compared with the prior art, the following beneficial effects are achieved:

[0026] (1) For this EL test probe assembly, the cross-shaped block is driven by the probe body and placed into the installation cavity inside the fixed seat. The cover plate drives the sealing block into the inner wall of the installation cavity to clamp and limit the cross-shaped block. The connecting block drives the elastic plate and the circular seat into the inner wall of the limiting seat. Pressing the elastic plate drives the circular seat to approach the connecting block and enter into the circular limiting groove. The probe body is electrically connected to an external EL tester through a data connection line. When testing different solar photovoltaic modules, probes of different specifications can be replaced, so as to match the applicability of detection, prevent the situation where the probes cannot be used, and the overall replacement method is simple and requires a short time, which is convenient for the staff to use.

[0027] (2) For this EL test probe assembly, by sliding the operating block on the inner wall of the through groove and driving the moving block and the circular block to slide inside the limiting cavity, compressing the spring to move the mounting block and drive the sliding block to slide on the inner wall of the T-shaped groove of the connecting track, and the spring pushes the circular block to slide on the inner wall of the limiting cavity and push the positioning pin into the inner wall of the corresponding positioning port. When testing different solar panels, the distance between the probes can be adjusted, so as to match the positions of the positive and negative electrodes of the solar photovoltaic module. The overall adjustment method is relatively simple during adjustment, which is convenient for the staff to test the solar photovoltaic module. Description of the Drawings

[0028] Figure 1 is the front view of the external structure of the present utility model;

[0029] Figure 2 is the left view of the internal structure of the present utility model;

[0030] Figure 3 is the three-dimensional view of the external structure of the fixing component and the adjusting component of the present utility model;

[0031] Figure 4 is the exploded view of the internal structure of the fixing component and the adjusting component of the present utility model.

[0032] In the figure: 1. Connecting track; 2. Adjusting component; 21. T-shaped groove; 22. Sliding block; 23. Positioning port; 24. Positioning pin; 25. Circular block; 26. Operating block; 27. Chute; 28. Through groove; 29. Limiting cavity; 210. Spring; 211. Mounting block; 212. Moving block; 3. Fixing component; 31. Fixed seat; 32. Cover plate; 33. Limiting seat; 34. Circular limiting groove; 35. Connecting block; 36. Circular seat; 37. Elastic plate; 38. Cross-shaped block; 39. Installation cavity; 310. Sealing block; 4. Probe body; 5. Connecting seat; 6. Bolt. Detailed Embodiment

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Embodiment 1:

[0035] Please refer to Figures 1-4 , an EL test probe assembly, including a connection track 1, an adjustment assembly 2 is installed on the front wall of the connection track 1, a fixing assembly 3 is installed on the front wall of the adjustment assembly 2, a probe body 4 is installed inside the fixing assembly 3, and the probe body 4 is teleconnected to an external EL tester through a data connection line;

[0036] The fixing assembly 3 includes a fixing seat 31, an installation cavity 39 is opened inside the fixing seat 31, a cross block 38 is installed inside the installation cavity 39, a cover plate 32 is hingedly installed on the front wall of the fixing seat 31, a sealing block 310 is installed on the rear wall of the cover plate 32 corresponding to the position of the installation cavity 39, a limiting seat 33 is installed on the side wall of the fixing seat 31, circular limiting grooves 34 are opened on the inner top wall and the bottom wall of the limiting seat 33, a connection block 35 is hingedly installed on the side wall of the cover plate 32, elastic plates 37 are fixedly connected to the top wall and the bottom wall of the connection block 35, and circular seats 36 are fixedly connected to the mutually separated sides of the rear parts of the elastic plates 37;

[0037] In the embodiment of the present utility model, the purpose of this setting is that with the setting of the fixing assembly 3, when detecting different solar photovoltaic modules, since probe bodies 4 of different specifications or other types need to be used, they can be replaced through the mutual cooperation of the various components of the fixing assembly 3. The overall replacement method is simple, and the overall structure is stable after installation, avoiding the situation of shaking and affecting the normal use of the probe body 4 and the external EL tester.

[0038] Embodiment 2:

[0039] Please refer to Figures 1-4, this embodiment provides a technical solution based on Embodiment 1: The rear wall of the fixed seat 31 is fixedly connected to the front wall of the adjustment assembly 2. The installation cavity 39 is in a "cross" shape. The outer wall of the cross block 38 fits against the inner wall of the installation cavity 39. The bottom end of the cross block 38 is fixedly connected to the top end of the probe body 4. The sealing block 310 is in a "cross" shape. The outer walls of the sealing block 310 all fit against the inner wall of the installation cavity 39. The outer walls of the sealing block 310 all abut against the front wall of the cross block 38. The sealing block 310 is made of rubber. The limit seat 33 is in a "U" shape. The elastic plate 37 is in an "L" shape. The outer walls of the circular seat 36 all fit against the inner walls of the corresponding circular limit grooves 34. The adjustment assembly 2 includes two sliding blocks 22. Both of the two sliding blocks 22 are in a "T" shape. The front wall of the connection track 1 is provided with a T-shaped groove 21. The outer walls of the two sliding blocks 22 all slide on the inner wall of the T-shaped groove 21. The front walls of the two sliding blocks 22 are both fixedly connected with mounting blocks 211. The inner top and bottom of the mounting block 211 are both provided with limit cavities 29. The inner top and bottom walls of the limit cavity 29 are both provided with sliding grooves 27. The top and bottom walls of the mounting block 211 and at positions corresponding to the sliding grooves 27 are both fixedly connected with through grooves 28. Springs 210 are installed on the inner front walls of the limit cavities 29. Circular blocks 25 are installed at the rear ends of the springs 210. The outer walls of the circular blocks 25 all slide on the inner walls of the corresponding limit cavities 29. At positions corresponding to the sliding grooves 27 on the outer walls of the circular blocks 25, moving blocks 212 are fixedly connected. The outer walls of the moving blocks 212 all slide on the inner walls of the corresponding sliding grooves 27. On the sides where the moving blocks 212 are away from each other, operating blocks 26 are fixedly connected. The outer walls of the operating blocks 26 all slide on the inner walls of the corresponding through grooves 28. Positioning pins 24 are fixedly connected to the rear walls of the circular blocks 25. A plurality of positioning ports 23 are provided on the front wall of the connection track 1 and at positions at the top and bottom of the T-shaped groove 21. The rear ends of the positioning pins 24 all slide through the mounting block 211 and fit against the inner walls of the corresponding positioning ports 23. Connection seats 5 are fixedly connected to the left and right sides of the top and bottom walls of the connection track 1. Bolts 6 are screwed and installed on the front walls of the connection seats 5. The bolts 6 are screwed and installed on an external EL tester;

[0040] In the embodiment of the present invention, the purpose of this setting is that due to the adjustment assembly 2, when detecting different solar photovoltaic modules, since there will be differences in the positions and spacings of the positive and negative poles of different solar photovoltaic modules, through the mutual cooperation of the various components of the adjustment assembly 2, the position of the probe body 4 can be adjusted, so as to be able to match different types of solar photovoltaic modules and complete the detection work, which can improve the practicability of the entire device.

[0041] At the same time, the content not described in detail in this specification belongs to the well-known prior art in the art.

[0042] During operation, first, through the mutual cooperation of the connecting seat 5 and the bolt 6, the entire device is installed on an external EL tester. The movable probe body 4 drives the cross block 38 into the installation cavity 39 inside the fixed seat 31, and then flips the cover plate 32 to drive the sealing block 310 into the inner wall of the installation cavity 39 to clamp and limit the cross block 38. At the same time, rotate the connecting block 35 to drive the elastic plate 37 and the circular seat 36 into the inner wall of the limit seat 33, press the elastic plate 37 to drive the circular seat 36 close to the connecting block 35, so that the circular seat 36 can enter into the circular limit groove 34 to complete the clamping state. The probe body 4 is electrically connected to the external EL tester through a data cable. According to the distance between the positive and negative electrodes of the solar photovoltaic module to be detected, the distance between the probe bodies 4 is adjusted. Move the operating block 26 outward to slide in the inner wall of the through groove 28 and drive the moving block 212 and the circular block 25 to slide in the limit cavity 29, and compress the spring 210. Then the movable mounting block 211 drives the sliding block 22 to slide in the T-shaped groove 21 of the connecting track 1. When it moves to the appropriate position, release the operating block 26, and under the elastic action of the spring 210, push the circular block 25 to slide in the inner wall of the limit cavity 29. The circular block 25 simultaneously drives the moving block 212 to slide in the inner wall of the corresponding chute 27, and at the same time, push the positioning pin 24 into the inner wall of the corresponding positioning port 23 to complete the positioning and clamping, so as to adjust the distance between the probe bodies 4. Then, the solar photovoltaic module is detected by the external EL tester.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An EL test probe assembly, comprising a connecting track (1), characterized in that: The front wall of the connecting track (1) is installed with an adjustment component (2), the front wall of the adjustment component (2) is installed with a fixing component (3), a probe body (4) is installed inside the fixing component (3), and the probe body (4) is connected to an external EL tester by telecommunication via a data connection line; The fixing assembly (3) comprises a fixing seat (31), a mounting cavity (39) is provided inside the fixing seat (31), a cross block (38) is installed inside the mounting cavity (39), a cover plate (32) is hingedly installed on the front wall of the fixing seat (31), a sealing block (310) is installed on the rear wall of the cover plate (32) and at a position corresponding to the mounting cavity (39), a limiting seat (33) is installed on the side wall of the fixing seat (31), a circular limiting groove (34) is provided on the top wall and the bottom wall of the limiting seat (33), a connecting block (35) is hingedly installed on the side wall of the cover plate (32), the top wall and the bottom wall of the connecting block (35) are fixedly connected to an elastic plate (37), and a circular seat (36) is fixedly connected to the rear side of the elastic plate (37) away from each other.

2. An EL test probe assembly according to claim 1, characterized in that: The rear wall of the fixing seat (31) is fixedly connected to the front wall of the adjusting assembly (2); the installation cavity (39) is in a "cross" shape; the outer wall of the cross block (38) is in contact with the inner wall of the installation cavity (39); and the bottom end of the cross block (38) is fixedly connected to the top end of the probe body (4).

3. The EL test probe assembly according to claim 1, characterized in that: The sealing block (310) is in the shape of a cross, the outer wall of the sealing block (310) is in contact with the inner wall of the installation cavity (39), the outer wall of the sealing block (310) is in contact with the front wall of the cross block (38), the sealing block (310) is made of rubber, the limiting seat (33) is in the shape of a U, the elastic plate (37) is in the shape of an L, and the outer wall of the circular seat (36) is in contact with the inner wall of the corresponding circular limiting groove (34).

4. The EL test probe assembly according to claim 1, characterized in that: The adjustment assembly (2) comprises two sliding blocks (22), both of which are T-shaped. The front wall of the connecting track (1) is provided with a T-shaped slot (21). The outer walls of the two sliding blocks (22) are slidably connected to the inner wall of the T-shaped slot (21). The front walls of the two sliding blocks (22) are fixedly connected with a mounting block (211). The top and bottom of the mounting block (211) are provided with a limiting cavity (29). The top and bottom walls of the limiting cavity (29) are provided with a sliding groove (27). The top and bottom walls of the mounting block (211) and the positions corresponding to the sliding groove (27) are fixedly connected with a through groove (28).

5. An EL test probe assembly according to claim 4, characterized in that: A spring (210) is installed on the front wall of the limiting cavity (29), and a circular block (25) is installed on the rear end of the spring (210). The outer wall of the circular block (25) is slidably connected to the corresponding inner wall of the limiting cavity (29). The outer wall of the circular block (25) and the position corresponding to the slide groove (27) are fixedly connected with a moving block (212). The outer wall of the moving block (212) is slidably connected to the corresponding inner wall of the slide groove (27). The side of the moving block (212) away from each other is fixedly connected with an operating block (26). The outer wall of the operating block (26) is slidably connected to the inner wall of the corresponding through groove (28). The rear wall of the circular block (25) is fixedly connected with a positioning pin (24).

6. The EL test probe assembly according to claim 1, characterized in that: A plurality of positioning openings (23) are provided on the front wall of the connecting track (1) and at the top and bottom of the T-shaped slot (21).

7. The EL test probe assembly according to claim 5, characterized in that: The rear ends of the positioning pins (24) slide through the mounting block (211) and fit into the inner wall of the corresponding positioning opening (23).

8. The EL test probe assembly according to claim 1, characterized in that: The top wall and the bottom wall of the connection track (1) are fixedly connected to a connection seat (5) on both left and right sides, and the front wall of the connection seat (5) is threadedly installed with a bolt (6), and the bolt (6) is threadedly installed on an external EL tester.

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