CN218633858U

CN218633858U - Photovoltaic cell efficiency detection probe

Info

Publication number: CN218633858U
Application number: CN202223121804.6U
Authority: CN
Inventors: 凌勇
Original assignee: Wuxi Yingjie Intelligent Equipment Co ltd
Current assignee: Wuxi Yingjie Intelligent Equipment Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-03-14
Anticipated expiration: 2032-11-24

Abstract

The application discloses photovoltaic cell efficiency detection probe includes: a housing; the detection assembly comprises a fixed shaft and a detection block, the detection block is arranged in the shell and is hinged to the shell through the fixed shaft, the detection block performs circular motion by taking the fixed shaft as a rotation center, and the edge track of the cross section of the detection block comprises an arc section and a straight line section; the limiting component comprises a limiting piece and an elastic piece, the limiting piece is arranged on the circumferential surface of the detection block and is located inside the shell, one end of the elastic piece in the length direction is connected to the inner wall of the shell, and the other end of the elastic piece in the length direction abuts against the limiting piece. The utility model provides a photovoltaic cell efficiency test probe is when examining test, is the face contact with the contact optimization of probe and electrode by the point contact, avoids the probe too sharply with electrode surface fish tail to the impact force that produces when the compression through the elastic component will detect the piece and contact with photovoltaic cell's electrode absorbs, avoids the workman too big hard, leads to photovoltaic cell's electrode surface to receive the damage.

Description

Photovoltaic cell efficiency detection probe

Technical Field

The utility model relates to a photovoltaic cell efficiency detects relevant field, in particular to photovoltaic cell efficiency test probe.

Background

Solar cells, or photovoltaic cells, are electrical devices that convert light energy directly into electrical energy through the photovoltaic effect, which is a physical and chemical phenomenon. It is a form of photovoltaic cell defined as a device whose electrical properties, such as current, voltage or resistance, change when exposed to light.

Among the characterization means of solar cells, the current-voltage characteristic test is the most direct and effective method. By measuring the current-voltage characteristic curve of the solar cell and further processing and analyzing, various electrical parameters of the cell can be directly obtained, and direct data support is provided for the performance of the photovoltaic device. Therefore, in order to further optimize the material or device process and improve the performance of the solar cell, the characteristic test of the solar cell is indispensable.

In the existing testing process, the two poles of a sample need to be touched manually by probes, the condition of excessive force can exist during manual operation, and most probes are in the shape of a needle point, so that certain damage can be brought to the surface of a battery, and the performance of the solar battery is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a photovoltaic cell efficiency test probe aims at solving in order to realize above-mentioned purpose, the utility model provides a photovoltaic cell efficiency test probe, include:

a housing providing support for the photovoltaic cell efficiency detection probe;

the detection assembly comprises a fixed shaft and a detection block, the detection block is arranged inside the shell and hinged to the shell through the fixed shaft, the detection block performs circular motion by taking the fixed shaft as a rotation center, the edge track of the cross section of the detection block comprises an arc section and a linear section, the arc section is a part of circular track, the linear section is connected with two ends of the arc section, and the circular track of the arc section is seven-eighths to twenty-nine times of a circle, wherein the linear section is arranged outside the shell;

the limiting component comprises a limiting piece and an elastic piece, the limiting piece is arranged on the circumferential surface of the detection block and is positioned in the shell, one end of the elastic piece in the length direction is connected to the inner wall of the shell, and the other end of the elastic piece in the length direction abuts against the limiting piece;

the detection block and the limiting piece are conductors, and the limiting piece is connected with an electric wire.

Furthermore, the detection block and the limiting piece are made of copper materials.

Further, the thickness of the detection block is one twentieth of the diameter of the detection block.

Furthermore, one of two connecting positions of the circular arc section and the straight line section, which is far away from the shell, is set as an initial contact point, and a chamfer structure exists at the initial contact point.

Further, an angle between a connecting line of the initial contact point and the circle center of the arc section in the detection block and the vertical direction of the detection block is 30 degrees.

Further, a buffer block is arranged at the initial contact point.

Furthermore, the buffer block is made of conductive rubber.

Furthermore, the elastic component is made of silica gel.

Further, the elastic force provided by the elastic piece is 30% -40% of the pressing force when the probe detects the elastic force.

The utility model provides a photovoltaic cell efficiency detection probe is when detecting, optimizes the contact of probe and electrode as the face contact by the point contact, avoids the probe too acutely with electrode surface fish tail to the compression through the elastic component will detect the piece and absorb with the impact force that produces when photovoltaic cell's electrode contact, avoid the workman too big hard, lead to photovoltaic cell's electrode surface to receive the damage.

Drawings

Fig. 1 is a schematic diagram (initial state) of a photovoltaic cell efficiency detection probe according to an embodiment of the present invention;

fig. 2 is a schematic view of an initial state of a photovoltaic cell efficiency detection probe according to an embodiment of the present invention (with a portion of the housing hidden);

fig. 3 is a schematic diagram (working state) of a photovoltaic cell efficiency detection probe according to an embodiment of the present invention;

fig. 4 is a schematic view of an operating state of a photovoltaic cell efficiency detection probe according to an embodiment of the present invention (a portion of the casing is hidden);

FIG. 5 is a cross-sectional view of a test block according to an embodiment of the present invention;

fig. 6 is an enlarged view of fig. 5 at a.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1-6, in an embodiment of the present invention, a photovoltaic cell efficiency detection probe includes:

the detection assembly comprises a fixed shaft and a detection block, the detection block is arranged in the shell, the detection block is hinged to the shell through the fixed shaft, the detection block performs circular motion by taking the fixed shaft as a rotation center, the edge track of the cross section of the detection block comprises an arc section and a straight line section, the arc section is a part of circular track, the straight line section is connected with two ends of the arc section, and the circular track of the arc section is seven eighths to twenty-nine tenths of a circle, wherein the straight line section is arranged outside the shell;

In the embodiment of the invention, during detection, the arc section of the electrode of the photovoltaic cell is firstly contacted with one of two connecting parts of the straight line section, which is far away from the shell, the detection block rotates, and the detection block rotates. Due to the limitation on the cross section of the detection block, the detection block can rotate more smoothly due to the existence of the arc section and can be connected with the shell more tightly, and the contact surface of the detection block and the electrode of the photovoltaic cell is in plane contact due to the existence of the straight line section, so that the surface of the electrode is prevented from being scratched due to the fact that the probe is too sharp; the limitation to the arc section limits the area of the electrode contact surface of the detection block and the photovoltaic cell, and ensures the detection effect. The straightway of detecting the piece periphery contacts with photovoltaic cell's electrode, and outside detector carries out the detection of electricity parameter to photovoltaic cell through detecting the piece, and the restriction piece is followed and is detected the synchronous rotation of piece, extrudees the elastic component, and the elastic component is compressed, and the impact force that produces when will detecting the piece and contact with photovoltaic cell's electrode absorbs, avoids the workman to exert oneself too big, leads to photovoltaic cell's electrode surface to receive the damage. After the detection is finished, the detection block is disconnected from the electrode of the photovoltaic cell, the elastic piece is released, and the elastic piece resets to drive the detection block to reset.

The utility model provides a photovoltaic cell efficiency test probe is when examining test, is the face contact with the contact optimization of probe and electrode by the point contact, avoids the probe too sharply with electrode surface fish tail to the impact force that produces when the compression through the elastic component will detect the piece and contact with photovoltaic cell's electrode absorbs, avoids the workman too big hard, leads to photovoltaic cell's electrode surface to receive the damage.

In one embodiment, the detecting block and the limiting member are made of copper materials.

The copper material has excellent conductivity, and can improve the detection effect of the probe. The wire is connected with an external detector to detect the electrical parameters of the photovoltaic cell. The detector comprises devices such as a voltmeter, an ammeter or an ohmmeter.

In one embodiment, the thickness of the detection block is one twentieth of the diameter of the detection block.

The area of the electrode contact surface of the detection block and the photovoltaic cell is not too large, and the influence on the detection effect caused by the too large contact area is avoided.

In one embodiment, one of two connection positions of the circular arc section and the straight line section, which is far away from the shell, is set as an initial contact point, and a chamfer structure is arranged at the initial contact point.

Due to the existence of the chamfer structure, the contact part of the detection block and the electrode of the photovoltaic cell is prevented from being too sharp, and the surface of the electrode is prevented from being damaged.

In one embodiment, an angle between a connecting line of the initial contact point and the center of the arc segment in the detection block and the vertical direction of the detection block is 30 degrees.

The angle is limited, so that the pressing force of the detection block on the electrode of the photovoltaic cell during detection can be better converted into the rotating force of the detection block.

In one embodiment, a buffer block is disposed at the initial contact point.

During detection, the initial contact point is firstly contacted with the electrode of the photovoltaic cell, and the rigid impact of the detection block on the electrode of the photovoltaic cell can be reduced through the buffering of the buffer block, so that the damage to the electrode of the photovoltaic cell is avoided.

In one embodiment, the buffer block is made of conductive rubber.

When the buffer block is in contact with the electrode of the photovoltaic cell, the rubber material can absorb the impact of the detection block on the electrode of the photovoltaic cell, and the conductive rubber can reduce the interference of the detection block on the electrode detection effect of the photovoltaic cell while buffering the impact force.

In one embodiment, the elastic member is made of a silicone material.

The inner space of the shell is narrow, the elastic piece made of the silica gel material is adopted, and the assembly difficulty of the probe is reduced while a better buffering effect is provided.

In one embodiment, the elastic force provided by the elastic member is 30% -40% of the pressing force detected by the probe.

The elasticity that the elastic component provided should not too big, when absorbing the impact force between buffer block and photovoltaic cell's electrode, avoids improving the detection degree of difficulty.

The above only is the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent processes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the patent protection scope of the present invention.

Claims

1. A photovoltaic cell efficiency detection probe, comprising:

a housing (100) providing support for the photovoltaic cell efficiency detection probe;

the detection assembly (200) comprises a fixed shaft (201) and a detection block (202), the detection block (202) is arranged inside the shell (100), the detection block (202) is hinged to the shell (100) through the fixed shaft (201), the detection block (202) performs circular motion by taking the fixed shaft (201) as a rotation center, the edge track of the cross section of the detection block (202) comprises an arc section (203) and a straight section (204), the arc section (203) is a partial circular track, the straight section (204) is connected with two ends of the arc section (203), the circular track of the arc section (203) is seven-eighths to twenty-nineteen-tenths of a circle, and the straight section (204) is arranged outside the shell (100);

the limiting assembly (300) comprises a limiting piece (301) and an elastic piece (302), the limiting piece (301) is arranged on the circumferential surface of the detection block (202), the limiting piece (301) is located inside the shell (100), one end of the elastic piece (302) in the length direction is connected to the inner wall of the shell (100), and the other end of the elastic piece (302) in the length direction abuts against the limiting piece (301);

the detection block (202) and the limiting piece (301) are conductors, and the limiting piece (301) is connected with an electric wire (303).

2. The photovoltaic cell efficiency detection probe according to claim 1, wherein the detection mass (202) and the restraint member (301) are made of a copper material.

3. The photovoltaic cell efficiency detection probe according to claim 1, wherein the thickness of the detection mass (202) is one twentieth of the diameter of the detection mass (202).

4. The photovoltaic cell efficiency detection probe according to claim 1, wherein one of two junctions of the circular arc section (203) and the straight line section (204) far away from the housing (100) is set as an initial contact point (206), and a chamfer structure is arranged at the initial contact point (206).

5. The photovoltaic cell efficiency detection probe according to claim 4, wherein an angle between a line connecting the initial contact point (206) and a center of a circular arc segment (203) in the detection block (202) and a vertical direction of the detection block (202) is 30 degrees.

6. The photovoltaic cell efficiency detection probe according to claim 4, wherein a buffer block (207) is disposed at the initial contact point (206).

7. The photovoltaic cell efficiency detection probe according to claim 6, wherein the buffer block (207) is made of conductive rubber.

8. The photovoltaic cell efficiency detection probe according to claim 1, wherein the elastic member (302) is made of a silicone material.

9. The photovoltaic cell efficiency detection probe according to claim 1, wherein the elastic member (302) provides an elastic force of 30-40% of the pressing force when the probe detects.