Photovoltaic cell efficiency detection probe

Abstract

The utility model relates to the technical field of photovoltaic cell detection, and discloses a photovoltaic cell efficiency detection probe, which comprises a mounting seat, an auxiliary assembly and a detection block, wherein the detection block is arranged in the mounting seat, a buffer block is arranged on one side of the detection block, two sliding grooves are formed in the detection block, and sliding blocks are arranged in the two sliding grooves. A transverse plate is arranged at the top of the sliding block. A connecting rod and an auxiliary plate are arranged at one end of the transverse plate. Cavities are formed in the tops of the transverse plate and the connecting rods, air bins are arranged on the inner walls of the cavities, connecting blocks are arranged in the cavities, a plurality of scraping plates are arranged on one sides of the connecting blocks, a plurality of supporting rods are arranged on the other sides of the connecting blocks, and pistons are arranged at the other ends of the supporting rods. According to the utility model, the scraping plate capable of flexibly moving is arranged outside the detection block, and the scraping plate moves to scrape and clean impurities on the surface of the detection area before the detection plate is in contact with the battery detection area, so that the fit stability of the detection block and the battery detection area is ensured, the poor contact condition caused by the impurities is avoided, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic cell detection technical field, concretely is a kind of photovoltaic cell efficiency detection probe. BACKGROUND

[0002] Photovoltaic cell efficiency is the key index of photovoltaic cell performance, it reflects the ability of cell to convert solar energy into electrical energy.Photovoltaic cell efficiency detection is to ensure that the performance of photovoltaic cell meets the requirements, optimizes cell design and improves power generation efficiency important link.

[0003] The existing patent number CN202223121804.6 proposes that the contact between the probe and the electrode is optimized from point contact to surface contact, to avoid the electrode surface being scratched by the too sharp probe, and the impact force generated when the detection block contacts the electrode of photovoltaic cell is absorbed by the compression of elastic member, to avoid the electrode surface of photovoltaic cell being damaged due to excessive force of worker.

[0004] However, the technical scheme has the problem that the buffer block is made of conductive rubber material, but the elasticity of conductive rubber material may not be sufficient to ensure stable contact between the detection block or buffer block and the detection point of photovoltaic cell, especially when there are particle impurities on the surface of the cell, which cannot be fully attached to the cell, which may cause poor contact and affect the detection accuracy.

[0005] Therefore, we propose a photovoltaic cell efficiency detection probe to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a photovoltaic cell efficiency detection probe to solve the problem that the detection block cannot be fully attached to the detection point of the cell when there are particle impurities on the surface of the photovoltaic cell, causing poor contact and affecting the accuracy of detection.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a photovoltaic cell efficiency detection probe, comprising a mounting seat, the mounting seat is internally provided with an auxiliary assembly for assisting the probe to attach to the detection point of photovoltaic cell, the auxiliary assembly comprises a hole slot provided in the mounting seat, the hole slot is internally provided with a detection block, the detection block is provided with a buffer block on one side, the detection block is internally provided with two sliding grooves, two sliding grooves are internally provided with sliding blocks, the sliding blocks are provided with a horizontal plate on the top, the horizontal plate is provided with a connecting rod and a secondary plate at one end;

[0008] The transverse plate and the connecting rod top are provided with cavities, the cavity inner wall is provided with an air chamber, the cavity interior is provided with a connecting block, one side of the connecting block is provided with a plurality of scrapers, the other side is provided with a plurality of supporting rods, and the other ends of the supporting rods are provided with pistons.

[0009] Preferably, the detection block is located in the hole groove and is rotatably connected with the hole groove inner wall through a connecting shaft, the buffer block is connected with one side of the detection block outer wall, the two sliding grooves are L-shaped structures and are oppositely angled.

[0010] Preferably, the sliding block is located in the sliding groove and is slidably connected with the sliding groove inner wall, the sliding block is connected with the transverse plate through a connecting rod, the connecting rod two ends are rotatably connected with the transverse plate and the auxiliary plate through bearings respectively, the connecting rod is a segmented structure, and the central region is rotatably connected through a spring shaft.

[0011] Preferably, one end of the connecting block is located in the cavity and is slidably connected with the cavity inner wall, a plurality of the scrapers are arrayed on the side of the connecting block away from the cavity, and the scrapers are in contact with the battery surface when the mounting seat is close to the battery surface.

[0012] Preferably, one end of the supporting rod is connected with the cavity inner side through a bolt connecting block, the other end extends into the air chamber and is connected with the piston, the piston is slidably connected with the air chamber inner wall, the air chamber interior is loaded with high-pressure gas, and a pressure sensor is installed in the air chamber, and the pressure sensor is electrically connected with the sliding block.

[0013] Preferably, the detection block outer wall is located on one side of the hole groove interior and is provided with an extension rod, the hole groove inner wall is provided with a spring, and the spring two ends are connected with the hole groove inner wall and the extension rod respectively.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The arc-shaped detection block and the buffer block are used instead of the probe when contacting the battery pole, the scrapers are installed on the top of the detection block, the scrapers contact the battery first when the buffer block contacts the battery surface and the detection block rotates to approach the battery, the impurities on the battery surface can be effectively isolated from the detection block, and the detection block is prevented from being damaged by the impurities with too high hardness.

[0016] 2. When the mounting frame approaches the battery, the pressure is applied to the scrapers, the connecting block is retracted into the cavity, the supporting rods and the piston are pressed to increase the air pressure in the air chamber, the sliding block is electrified to slide in the sliding groove when the pressure sensor detects the pressure change, the transverse plate slides outside the detection block, and the scrapers scrape the impurities on the battery surface away from the detection area, so that the stability of the detection block when contacting the battery surface pole is ensured, and the detection accuracy is prevented from being affected by unstable contact.

[0017] The utility model discloses a flexible movable scraper is installed outside the detection block, and through the scraper, the impurities on the surface of detection area are scraped and cleaned before the detection plate and battery detection area contact, ensure the stability of detection block and battery detection area adhesion, avoid the contact bad situation caused by impurities, improve the accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the A part enlarged view of the utility model;

[0020] Figure 3 It is the inside sectional view of the mounting seat of the utility model;

[0021] Figure 4 It is the B part enlarged view of the utility model.

[0022] In the drawing: 1, mounting seat;2, hole groove;201, spring;3, detection block;301, buffer block;302, extension rod;4, sliding slot;5, sliding block;6, cross plate;601, connecting rod;602, vice plate;7, cavity;701, air chamber;8, connecting block;801, scraper;9, support rod;901, piston. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Embodiment one: please refer to Figures 1-4A photovoltaic cell efficiency testing probe includes a mounting base 1. The mounting base 1 contains an auxiliary component to facilitate contact between the probe and the photovoltaic cell electrodes. The auxiliary component includes a slot 2 within the mounting base 1, and a detection block 3 within the slot 2. The detection block 3 changes the contact between the probe and the cell from point contact to surface contact, avoiding the risk of damage to the electrodes from the probe tip. A buffer block 301 is provided on one side of the detection block 3, which rotates the detection block 3 at an arc angle when it contacts the cell, thereby ensuring proper contact. The battery detection area is in contact with the detection block 3, which has two sliding grooves 4 inside to position the direction and angle of the slider 5 when it slides. Each of the two sliding grooves 4 has a slider 5 inside. After being powered on, the slider 5 can slide in the sliding groove 4 and be brought to the horizontal plate 6 to slide on the surface of the detection block 3 at a synchronous angle. The top of the slider 5 is provided with a horizontal plate 6. One end of the horizontal plate 6 is provided with a connecting rod 601 and a sub-plate 602. The horizontal plate 6 and the sub-plate 602 are connected by a spring shaft to make the connecting rod 601 rotate in two sections, so that the sub-plate 602 fits against the outer wall of the detection block 3.

[0025] Both the top of the horizontal plate 6 and the connecting rod 601 are provided with cavities 7 for housing the connecting block 8 and for positioning the angle of the connecting block 8 when it slides. The inner wall of the cavity 7 is provided with an air chamber 701. The high-pressure gas inside the air chamber 701 can increase the air pressure intensity inside the air chamber 701 and act on the piston 901. Together with the support rod 9, it pushes the connecting block 8 to slide in the cavity 7 and supports the connecting block 8. The connecting block 8 is provided inside the cavity 7 for supporting and installing the scraper 801. Multiple scrapers 801 are provided on one side of the connecting block 8. When the detection block 3 rotates and approaches the battery detection point, the scraper 801 contacts the battery first, thereby avoiding contact between impurities on the battery and the detection block 3 and preventing impurities from damaging the detection block 3. When the slider 5 drives the horizontal plate 6 and the sub-plate 602 to slide outside the detection block 3, the scraper 801 scrapes away the impurities on the surface of the battery and moves them away from the detection area. Multiple support rods 9 are provided on the other side, and pistons 901 are provided at the other end of each of the multiple support rods 9.

[0026] In this embodiment: when the detection block 3 rotates and approaches the battery detection area, the scraper 801 on the outer wall of the connecting block 8 on the outside of the detection block 3 contacts the battery. The pressure of the mounting base 1 approaching the battery pushes the scraper 801 to retract into the cavity 7. When the connecting block 8 retracts, it cooperates with the support rod 9 to push the piston 901 into the air chamber 701 to compress the gas and increase the air pressure in the air chamber 701. When the pressure sensor in the air chamber 701 detects that the air pressure exceeds the set value, it energizes the slider 5 to make it slide in the slide groove 4, and drives the horizontal plate 6 to cooperate with the connecting rod 601 to make the sub-plate 602 slide together outside the detection block 3. At the same time, the scraper 801 outside the horizontal plate 6 and the sub-plate 602 slides on the battery detection area to scrape away the impurities from the detection area and move to the edge of the detection block 3, so that the detection block 3 contacts and adheres to the battery detection area to achieve connection. By scraping away the impurities, the impurities are prevented from affecting the connection when the detection block 3 is adhered to the battery detection area, ensuring the stability of the connection.

[0027] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 1-4 The detection block 3 is located inside the slot 2 and is rotatably connected to the inner wall of the slot 2 via a connecting shaft. The buffer block 301 is connected to one side of the outer wall of the detection block 3. Both slides 4 are L-shaped and angularly opposite each other. The slider 5 is located inside the slide 4 and is slidably connected to the inner wall of the slide 4. The slider 5 is connected to the horizontal plate 6 via a connecting rod. Both ends of the connecting rod 601 are rotatably connected to the horizontal plate 6 and the auxiliary plate 602 respectively via bearings. The connecting rod 601 is a segmented structure, and the central area is rotatably connected via a spring shaft. One end of the connecting block 8 is located inside the cavity 7 and is slidably connected to the inner wall of the cavity 7. Multiple scrapers 801 are arrayed and distributed on the connecting block 8 away from the cavity 7. On the side, when the mounting base 1 is close to the battery surface, the scraper 801 contacts the battery surface. One end of the support rod 9 is connected to the side of the cavity 7 near the inside of the bolt connecting block 8, and the other end extends into the air chamber 701 and is connected to the piston 901. The piston 901 is slidably connected to the inner wall of the air chamber 701. The air chamber 701 is filled with high-pressure gas, and a pressure sensor is installed in the air chamber 701. The pressure sensor is electrically connected to the slider 5. An extension rod 302 is provided on the outer wall of the detection block 3 located inside the slot 2. A spring 201 is provided on the inner wall of the slot 2, and the two ends of the spring 201 are respectively connected to the inner wall of the slot 2 and the extension rod 302.

[0028] In this embodiment: when the buffer block 301 contacts the battery detection area, the detection block 3 rotates due to the arc angle of the buffer block 301. At the same time as the detection block 3 rotates, the external extension rod 302 compresses the spring 201, and when the scraper 801 retracts, it buffers the impact generated when the detection block 3 contacts the battery, avoiding damage to the electrode surface of the photovoltaic cell caused by excessive pressure from the worker. After the detection is completed, the spring 201 can push the extension rod 302 and push the detection block 3 to rotate and reset. At the same time, the high-pressure gas in the air chamber 701 acts on the piston 901 and, together with the support rod 9, pushes the connecting block 8 and the scraper 801 to reset.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A photovoltaic cell efficiency testing probe, comprising a mounting base (1), wherein the mounting base (1) is provided with an auxiliary component for assisting the probe in contacting the photovoltaic cell electrode, characterized in that: The auxiliary component includes a slot (2) disposed inside the mounting base (1), a detection block (3) disposed inside the slot (2), a buffer block (301) disposed on one side of the detection block (3), two sliding grooves (4) disposed inside the detection block (3), a slider (5) disposed inside each of the two sliding grooves (4), a horizontal plate (6) disposed on the top of the slider (5), and a connecting rod (601) and a sub-plate (602) disposed at one end of the horizontal plate (6); The top of the cross plate (6) and the connecting rod (601) are both provided with cavities (7), the inner wall of the cavity (7) is provided with an air chamber (701), the cavity (7) is provided with a connecting block (8), one side of the connecting block (8) is provided with multiple scrapers (801), the other side is provided with multiple support rods (9), and the other end of each of the multiple support rods (9) is provided with a piston (901).

2. The photovoltaic cell efficiency detection probe according to claim 1, characterized in that: The detection block (3) is located in the slot (2) and is rotatably connected to the inner wall of the slot (2) via a connecting shaft. The buffer block (301) is connected to one side of the outer wall of the detection block (3). Both of the sliding grooves (4) are L-shaped structures and are angularly opposite each other.

3. The photovoltaic cell efficiency detection probe according to claim 2, characterized in that: The slider (5) is located in the groove (4) and is slidably connected to the inner wall of the groove (4). The slider (5) is connected to the horizontal plate (6) through a connecting rod. Both ends of the connecting rod (601) are rotatably connected to the horizontal plate (6) and the sub-plate (602) respectively through bearings. The connecting rod (601) has a segmented structure, and the central area is rotatably connected through a spring shaft.

4. A photovoltaic cell efficiency detection probe according to claim 1, characterized in that: One end of the connecting block (8) is located inside the cavity (7) and is slidably connected to the inner wall of the cavity (7). A plurality of scrapers (801) are arrayed on the side of the connecting block (8) away from the cavity (7), and the scrapers (801) contact the battery surface when the mounting base (1) is close to the battery surface.

5. A photovoltaic cell efficiency detection probe according to claim 1, characterized in that: One end of the support rod (9) is connected to the inside of the cavity (7) via a bolted connecting block (8), and the other end extends into the gas chamber (701) and is connected to the piston (901). The piston (901) is slidably connected to the inner wall of the gas chamber (701). The gas chamber (701) is filled with high-pressure gas, and a pressure sensor is installed inside the gas chamber (701). The pressure sensor is electrically connected to the slider (5).

6. A photovoltaic cell efficiency detection probe according to claim 1, characterized in that: An extension rod (302) is provided on the outer wall of the detection block (3) on one side inside the slot (2). A spring (201) is provided on the inner wall of the slot (2), and the two ends of the spring (201) are connected to the inner wall of the slot (2) and the extension rod (302) respectively.

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