Solar cell IV testing device

Abstract

The utility model discloses a solar cell IV testing device which comprises a detection machine body, the top of the detection machine body is provided with a line pressing component, the line pressing component comprises a movable sleeve and a fixed plate, the movable sleeve is connected to the top of the detection machine body in a penetrating mode, the bottom of the movable sleeve is provided with a stretching part, and the top of the fixed plate is provided with a pressing plate. A locking sleeve is arranged on the outer side of the inserting rod and located at the bottom of the pressing plate, the locking sleeve is connected to the top of the movable sleeve in a penetrating mode, a springback part is arranged on the inner side of the top of the locking sleeve, and inserting blocks are symmetrically arranged on the outer side of the bottom of the inserting rod. A user pulls the insertion rod and the stretching part to fix the pressing plate and the fixing plate to the top of the detection machine body, and presses the insertion rod and pulls the pressing plate, so that the locking sleeve is movably fixed in the movable sleeve through the insertion block, and the pressing plate is separated from the fixing plate, and therefore, the test line pressing operation is performed, and the test line is prevented from moving and being damaged. And poor contact is generated at the insertion part of the test line and the detection machine body.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic equipment detection, in particular to a solar cell IV testing device. Background Art

[0002] The solar cell IV test device is mainly used to measure the IV characteristic curve of photovoltaic modules. Operation and maintenance personnel can use IV testing to monitor the health status and performance changes of solar cells. Among them, the commonly used equipment is the photovoltaic system efficiency tester, which can be used to evaluate the IV characteristic curve of the photovoltaic system. The top of the existing photovoltaic system efficiency tester is provided with multiple connectors for the insertion and connection of test wires. Since the existing tester does not have the function of pressing and fixing the test wires, during the inspection of photovoltaic panels, the shaking and movement of the test wires will cause poor contact at the connection insertion. In order to avoid the problem of poor contact caused by the shaking of the test wires, a new type of solar cell IV test device is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a solar cell IV testing device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solar cell IV testing device, comprising a detection body, a sealing cover hinged on the side of the detection body, a wire pressing component arranged on the top of the detection body, the wire pressing component comprising a movable sleeve and a fixed plate sleeved on the outside of the movable sleeve, the bottom of the movable sleeve is inserted and connected to the top of the detection body, the bottom of the movable sleeve is provided with a stretching portion, the top of the fixed plate is provided with a pressure plate for wire pressing, the top of the pressure plate is inserted and connected with an insertion rod, a locking sleeve is provided on the outside of the insertion rod and at the bottom of the pressure plate, the bottom of the locking sleeve is inserted and connected to the top of the movable sleeve, the inner side of the top of the locking sleeve is provided with a rebound portion, and the outer side of the bottom of the insertion rod is symmetrically provided with insertion blocks.

[0005] Preferably, the side of the plug block is inserted and connected to the inner wall of the locking sleeve, the inner wall of the movable sleeve is symmetrically provided with locking grooves for the plug block to be inserted, and the outer side of the insertion rod is symmetrically provided with reset grooves for the plug block to retract.

[0006] Preferably, the rebound part includes a lower pressure ring, a compression spring and a fixed ring, and the lower pressure ring, the compression spring and the fixed ring are all sleeved on the outside of the insertion rod, the outer side of the fixed ring is fixedly connected to the inner wall of the locking sleeve, the lower pressure ring is arranged at the top of the compression spring, and the fixed ring is arranged at the bottom of the compression spring.

[0007] Preferably, a plurality of threading holes are symmetrically provided at the connection between the pressing plate and the fixing plate, and a rubber half ring is provided inside the threading hole.

[0008] Preferably, the stretching portion comprises a friction ring and an external threaded ring arranged on the top of the friction ring, the friction ring and the external threaded ring are both sleeved on the outside of the movable sleeve, and a movable threaded groove is provided at the insertion point of the detection body and the movable sleeve.

[0009] Preferably, a lock buckle is provided on the front of the detection body, and a lock ring is provided on the front of the sealing cover.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model provides a wire pressing component on the top of the detection body. The user pulls the insertion rod, uses the stretching part to stretch the pressure plate and the fixed plate to the top of the detection body, presses the insertion rod, and the insertion block enters the locking sleeve. The pressure plate is pulled to make the locking sleeve move and be fixed in the movable sleeve, so that the pressure plate is separated from the fixed plate, thereby performing the wire pressing operation of the test line, avoiding poor contact at the insertion point of the test line and the detection body due to the movement of the test line. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a partial cross-sectional view of the utility model as a whole.

[0014] Figure 3 It is a cross-sectional view of the wire pressing component of the utility model.

[0015] In the figure: 1. detection body; 101. movable thread groove; 2. sealing cover; 3. pressure plate; 4. fixing plate; 5. insertion rod; 501. lower pressure ring; 502. compression spring; 503. fixing ring; 504. reset groove; 6. locking sleeve; 7. movable sleeve; 701. locking groove; 8. insertion block; 9. threading hole; 901. rubber half ring; 10. friction ring; 11. external thread ring; 12. locking buckle; 121. locking ring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1-3A solar cell IV test device shown includes a detection body 1, a sealing cover 2 is hinged on the side of the detection body 1, a lock buckle 12 is provided on the front of the detection body 1, and a locking ring 121 is provided on the front of the sealing cover 2;

[0018] It should be noted that the reference model of the detection body 1 is the working principle of the FTV-100 photovoltaic system efficiency tester, and the detection body 1 and the sealing cover 2 are both made of polyvinyl chloride;

[0019] A wire pressing component is provided on the top of the detection body 1;

[0020] Specifically, the wire pressing component includes a movable sleeve 7 and a fixed plate 4 sleeved on the outside of the movable sleeve 7, a pressing plate 3 for wire pressing is arranged on the top of the fixed plate 4, and the bottom of the movable sleeve 7 is inserted and connected to the top of the detection body 1;

[0021] It should be noted that a through-slot for inserting the movable sleeve 7 is provided at the top of the detection body 1, and a square slot for placing the pressing plate 3 and the fixing plate 4 is provided at the top of the through-slot, and a plurality of threading holes 9 are symmetrically provided at the connection between the pressing plate 3 and the fixing plate 4, and a rubber half-ring 901 is provided on the inner side of the threading hole 9, and the threading hole 9 is composed of two semicircular slots, and the pressing plate 3 and the fixing plate 4 are not fixed and can be separated from each other, and the rubber half-ring 901 and the inner wall of the threading hole 9 are bonded with glue;

[0022] The bottom of the movable sleeve 7 is provided with a stretching portion;

[0023] Specifically, the stretching part includes a friction ring 10 and an external thread ring 11 arranged on the top of the friction ring 10. The friction ring 10 and the external thread ring 11 are both sleeved on the outside of the movable sleeve 7. A movable thread groove 101 is provided at the insertion point of the detection body 1 and the movable sleeve 7.

[0024] It should be noted that the user stretches the movable sleeve 7 upward in the movable thread groove 101 to separate the fixed plate 4 from the square groove, and rotates the movable sleeve 7 to thread the external thread ring 11 and the top inner wall of the movable thread groove 101;

[0025] Specifically, the top of the pressing plate 3 is connected with an insertion rod 5, and a locking sleeve 6 is arranged outside the insertion rod 5 and at the bottom of the pressing plate 3. The bottom of the locking sleeve 6 is connected with the top of the movable sleeve 7, and an insertion block 8 is symmetrically arranged outside the bottom of the insertion rod 5.

[0026] It should be noted that the top of the locking sleeve 6 is bonded to the bottom of the pressing plate 3 by glue, and a cylindrical hole for the insertion of the insertion rod 5 is opened on the top of the pressing plate 3, and the cylindrical hole is correspondingly connected to the inner cavity of the locking sleeve 6, and the outer side of the movable sleeve 7 is bonded to the fixed plate 4 by glue;

[0027] Specifically, the side of the plug block 8 is inserted and connected to the inner wall of the locking sleeve 6, the inner wall of the movable sleeve 7 is symmetrically provided with a locking groove 701 for the plug block 8 to be inserted, and the outer side of the insertion rod 5 is symmetrically provided with a reset groove 504 for the plug block 8 to retract;

[0028] It should be noted that the inner wall of the locking sleeve 6 is symmetrically provided with oblique holes for the insertion of the plug block 8, and the bottom of the reset groove 504 is provided with an arc slope to facilitate the extrusion and pushing of the plug block 8;

[0029] A rebound portion is provided on the inner side of the top of the locking sleeve 6;

[0030] Specifically, the rebound part includes a lower pressure ring 501, a compression spring 502 and a fixing ring 503. The lower pressure ring 501, the compression spring 502 and the fixing ring 503 are all sleeved on the outside of the insertion rod 5. The outside of the fixing ring 503 is fixedly connected to the inner wall of the locking sleeve 6. The lower pressure ring 501 is arranged on the top of the compression spring 502, and the fixing ring 503 is arranged on the bottom of the compression spring 502.

[0031] It should be noted that the top diameter of the lower pressure ring 501 is larger than the bottom diameter, and the top inner diameter of the locking sleeve 6 is larger than the top diameter of the lower pressure ring 501 and smaller than the bottom diameter of the lower pressure ring 501, so that the lower pressure ring 501 is restricted in the inner cavity of the locking sleeve 6, and the compression spring 502 resets the insertion rod 5 through the lower pressure ring 501;

[0032] In actual use, by providing a wire pressing component on the top of the detection body 1, the user pulls the insertion rod 5 to stretch the pressure plate 3 and the fixed plate 4 to the top of the detection body 1, rotates the movable sleeve 7, locks the position of the movable sleeve 7, presses the insertion rod 5, pulls the locking sleeve 6, so that the insertion block 8 enters the locking sleeve 6 from the locking groove 701, pulls the pressure plate 3, so that the locking sleeve 6 moves in the movable sleeve 7, releases the insertion rod 5, and the insertion block 8 enters another locking groove 701, so that the pressure plate 3 is separated from the fixed plate 4, puts the test line into the threading hole 9, presses the insertion rod 5, first pulls up the locking sleeve 6, and then presses down the locking sleeve 6, the pressure plate 3 and the fixed plate 4 are closed, and the test line realizes the wire pressing operation, avoiding the movement of the test line, resulting in poor contact at the insertion point of the test line and the detection body 1.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar cell IV test device, comprising a detection body (1), wherein a sealing cover (2) is hingedly connected to the side of the detection body (1), characterized in that: A wire pressing component is arranged at the top of the detection body (1), and the wire pressing component comprises a movable sleeve (7) and a fixed plate (4) sleeved on the outside of the movable sleeve (7); the bottom of the movable sleeve (7) is inserted and connected to the top of the detection body (1); the bottom of the movable sleeve (7) is provided with a stretching portion; the top of the fixed plate (4) is provided with a pressure plate (3) for wire pressing; the top of the pressure plate (3) is inserted and connected with an insertion rod (5); a locking sleeve (6) is arranged on the outside of the insertion rod (5) and at the bottom of the pressure plate (3); the bottom of the locking sleeve (6) is inserted and connected to the top of the movable sleeve (7); the inner side of the top of the locking sleeve (6) is provided with a rebound portion; and the outer side of the bottom of the insertion rod (5) is symmetrically provided with an insertion block (8).

2. A solar cell IV test device according to claim 1, characterized in that: The side of the plug block (8) is inserted and connected to the inner wall of the locking sleeve (6), the inner wall of the movable sleeve (7) is symmetrically provided with locking grooves (701) for the plug block (8) to be inserted, and the outer side of the insertion rod (5) is symmetrically provided with reset grooves (504) for the plug block (8) to retract.

3. A solar cell IV testing device according to claim 2, characterized in that: The rebound part includes a lower pressure ring (501), a compression spring (502) and a fixing ring (503); the lower pressure ring (501), the compression spring (502) and the fixing ring (503) are all sleeved on the outer side of the insertion rod (5); the outer side of the fixing ring (503) is fixedly connected to the inner wall of the locking sleeve (6); the lower pressure ring (501) is arranged at the top of the compression spring (502), and the fixing ring (503) is arranged at the bottom of the compression spring (502).

4. A solar cell IV testing device according to claim 1, characterized in that: A plurality of threading holes (9) are symmetrically provided at the connection between the pressing plate (3) and the fixing plate (4), and a rubber half ring (901) is provided inside the threading hole (9).

5. A solar cell IV testing device according to claim 4, characterized in that: The stretching portion comprises a friction ring (10) and an external threaded ring (11) arranged on the top of the friction ring (10); the friction ring (10) and the external threaded ring (11) are both sleeved on the outside of a movable sleeve (7); and a movable threaded groove (101) is provided at the insertion point between the detection body (1) and the movable sleeve (7).

6. A solar cell IV testing device according to claim 1, characterized in that: A lock buckle (12) is provided on the front of the detection body (1), and a lock ring (121) is provided on the front of the sealing cover (2).

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