A testing device for a solar cell

Abstract

The application discloses a testing device for solar cells, which comprises a carrier, a xenon lamp and a plurality of probe groups. The carrier is a plate body made of conductive metal. One surface of the carrier is provided with a plurality of N-zone test strips and a plurality of P-zone test strips. The plurality of N-zone test strips and the plurality of P-zone test strips are alternately arranged to form a testing zone of the solar cells. The carrier is provided with a plurality of groups of vacuum adsorption holes for adsorbing the cells to be tested. Each group of vacuum adsorption holes is composed of a plurality of vacuum adsorption holes arranged at intervals. A group of vacuum adsorption holes is arranged between adjacent N-zone test strips and P-zone test strips. The plurality of probe groups are fixed in the carrier. The xenon lamp is arranged below the carrier. The probes of the application are in contact with the cells through the plurality of N-zone test strips and the plurality of P-zone test strips arranged on the surface of the carrier, so that the contact area is increased, the front glass compression is cancelled, the test damage of the cells caused by the probe compression is reduced, and the testing of a plurality of BC pattern cells can be compatible.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic cell testing technical field, concretely relates to a solar cell's testing arrangement. BACKGROUND

[0002] With the increasingly scarce of non-renewable resources, and some non-renewable resources in people's life and industrial production cause various pollution problems, therefore all countries are using various policy or legal means to gradually increase the development and utilization of renewable energy and clean energy, and strive to improve its proportion in the whole energy use. In clean and renewable energy, solar energy as a kind of pollution-free, renewable energy, its development and utilization have been rapid development, especially the back contact cell with high conversion efficiency has become the focus of the current research.

[0003] After the solar cell is made, the solar cell needs to be tested. The current testing technology generally uses front glass plate, xenon lamp above, and probe compression contact test mode for electrode or main grid below, which is difficult to adjust compression contact position, and the upper glass plate will have a certain influence on light source irradiation, and the probe compression will also cause certain damage to the electrode. At the same time, because of the compression of the main grid and the electrode, the size specification of the probe head is also strictly required. UTILITARIAN CONTENT

[0004] To solve at least one problem of the prior art, the utility model provides a solar cell testing device.

[0005] To achieve the above utility model purposes, a technical scheme adopted by the utility model is: a solar cell testing device, including carrier, xenon lamp and multiple rows of probe groups, the carrier is a plate body made of conductive metal, one surface of the carrier has multiple N area test strips and multiple area test strips, multiple N area test strips and multiple area test strips are alternately arranged to form a solar cell test area, the carrier is provided with multiple rows of vacuum adsorption hole groups for adsorbing to-be-tested battery pieces, the vacuum adsorption hole group is composed of multiple vacuum adsorption holes arranged at intervals, a row of vacuum adsorption hole groups is arranged between adjacent N area test strips and P area test strips, multiple probe groups are fixed in the carrier, and the xenon lamp is arranged below the carrier.

[0006] In some embodiments, the carrier is coated with an insulating material between the N area test strips and the P area test strips.

[0007] In some embodiments, the vacuum adsorption hole penetrates the insulating material.

[0008] In some embodiments, each of the N-area test strips is provided with a row of the probe groups, and each of the area test strips is provided with a row of the probe groups.

[0009] In some embodiments, each of the N-area test strips is provided with a row of the probe groups, and each of the area test strips is provided with a row of the probe groups.

[0010] In some embodiments, the probe has a needle diameter of 0.5 mm.

[0011] In some embodiments, the N-area test strips and the P-area test strips are formed by a gold-plated contact coating coated on the surface of the carrier.

[0012] In some embodiments, the gold-plated contact coating is coated on the lower surface of the carrier.

[0013] In some embodiments, the solar cell testing device further comprises a support frame, and the carrier and the xenon lamp are arranged on the support frame.

[0014] In some embodiments, the solar cell testing device further comprises a wire connected with the probe group.

[0015] Thanks to the use of the above technical solutions, the present application has the following beneficial effects compared with the prior art:

[0016] (1) The probe of the utility model is contacted with the battery piece through the multiple N-area test strips and the multiple P-area test strips arranged on the surface of the carrier, the contact area is increased, the front glass compression is cancelled, the test damage of the probe compression to the battery piece is reduced, and meanwhile, the multiple N-area test strips and the multiple P-area test strips are contacted with the battery piece, so that the test of the battery piece with multiple BC patterns can be compatible.

[0017] (2) The xenon lamp of the utility model is arranged below the carrier, so that the light source directly irradiates the surface of the battery, and the test result is more accurate.

[0018] (3) The battery piece is adsorbed on the lower surface of the carrier through the multiple rows of vacuum adsorption holes, so that the damage of the front glass compression to the battery piece is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0020] Figure 1The utility model discloses a kind of testing device of solar cell structure schematic view of embodiment of the utility model.

[0021] Mark explanation:

[0022] 1-carrier;2-P area test strip;3-N area test strip;4-vacuum adsorption hole. DETAILED DESCRIPTION

[0023] In order to enable the personnel in the art to better understand the present application scheme, the technical scheme in the present application embodiment will be clearly and completely described below in conjunction with the drawings in the present application embodiment. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should be within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "up" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For the person skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0027] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked", "sleeved" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. The specific meaning of the above terms in the utility model can be understood by the person skilled in the art according to the specific circumstances.

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] Please refer to Figure 1 The utility model discloses an embodiment provides a kind of solar cell testing device comprising carrier 1, xenon lamp and multiple rows of probe group, carrier 1 is the plate body made of conductive metal, the surface of carrier 1 has multiple N area test strips 3 and multiple P area test strips 2, multiple N area test strips 3 and multiple P area test strips 2 are alternately arranged to form the test area of solar cell, carrier 1 is provided with multiple rows of vacuum adsorption hole groups for adsorbing battery piece to be measured, vacuum adsorption hole group is composed of multiple vacuum adsorption holes 4 arranged at intervals, between adjacent N area test strip 3 and P area test strip 2, a row of vacuum adsorption hole groups is provided, multiple probe groups are fixed in carrier 1, and xenon lamp is arranged below carrier 1.

[0030] In some embodiments, the carrier 1 is coated with an insulating material between the N area test strip 3 and the P area test strip 2, and the vacuum adsorption hole 4 penetrates the insulating material.

[0031] In some embodiments, a row of probe groups is provided below each N area test strip 3, and a row of probe groups is provided below each P area test strip 2.

[0032] In some embodiments, a row of probe groups is composed of multiple probes.

[0033] In some embodiments, the diameter of the needle of the probe is 0.5 mm.

[0034] In some embodiments, the N area test strip 3 and the P area test strip 2 are formed by a gold-plated contact coating coated on the surface of the carrier 1.

[0035] In some embodiments, the gold-plated contact coating is coated on the lower surface of the carrier 1.

[0036] In some embodiments, the solar cell testing device further comprises a support frame, and the carrier 1 and the xenon lamp are arranged on the support frame.

[0037] In some embodiments, the testing device of the solar cell further comprises a wire connected with the probe group.

[0038] During testing, the solar cell is placed on the lower surface of the carrier 1 through the multiple rows of vacuum suction hole groups, and then the multiple rows of probe groups fixed in the carrier 1 are powered through the wire, the voltage and current in the probe are transmitted to the solar cell through the gold-plated contact coating, and finally the electrical performance of the solar cell is calculated through the IV module, so that the testing of the solar cell is completed.

[0039] Due to the use of the above technical solutions, the present application has the following beneficial effects compared with the prior art:

[0040] (4) The probe of the utility model is contacted with the solar cell through the multiple N area test strips 3 and the multiple P area test strips 2 arranged on the surface of the carrier 1, the contact area is increased, the front glass compression is cancelled, the test damage of the probe compression to the solar cell is reduced, and meanwhile, the multiple N area test strips 3 and the multiple P area test strips 2 are contacted with the solar cell, so that the testing of the solar cell with multiple BC patterns is compatible

[0041] (5) The xenon lamp of the utility model is arranged below the carrier 1, so that the light source directly irradiates the surface of the solar cell, and the test result is more accurate.

[0042] (6) The solar cell is adsorbed on the lower surface of the carrier 1 through the multiple rows of vacuum suction hole groups, so that the damage of the front glass compression to the solar cell is avoided.

[0043] Finally, it should be pointed out that the above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A testing device for solar cells, characterized in that, The device includes a carrier (1), a xenon lamp, and a multi-row probe assembly. The carrier (1) is a plate made of conductive metal. One surface of the carrier (1) has multiple N-zone test strips (3) and multiple P-zone test strips (2). The multiple N-zone test strips (3) and multiple P-zone test strips (2) are alternately arranged to form the test area of ​​the solar cell. The carrier (1) is provided with multiple rows of vacuum adsorption holes for adsorbing the solar cell to be tested. The vacuum adsorption hole assembly consists of multiple spaced vacuum adsorption holes (4). A row of the vacuum adsorption hole assembly is arranged between adjacent N-zone test strips (3) and P-zone test strips (2). The multiple rows of probe assemblies are fixed inside the carrier (1). The xenon lamp is located below the carrier (1).

2. The solar cell testing apparatus as described in claim 1, characterized in that, The carrier (1) is coated with insulating material between the N-zone test strip (3) and the P-zone test strip (2).

3. The solar cell testing apparatus as described in claim 2, characterized in that, The vacuum adsorption hole (4) penetrates the insulating material.

4. The solar cell testing apparatus as described in claim 1, characterized in that, Each N-zone test strip (3) has a row of probes below it, and each P-zone test strip (2) has a row of probes below it.

5. The solar cell testing apparatus as described in claim 1, characterized in that, The probe group described in the row consists of multiple probes.

6. The solar cell testing apparatus as described in claim 1, characterized in that, The probe has a tip diameter of 0.5 mm.

7. The solar cell testing apparatus as described in claim 1, characterized in that, Both the N-zone test strip (3) and the P-zone test strip (2) are formed by a gold-plated contact coating applied to the surface of the carrier (1).

8. The solar cell testing apparatus as described in claim 7, characterized in that, The gold-plated contact coating is applied to the lower surface of the carrier (1).

9. A testing apparatus for a solar cell as described in any one of claims 1 to 8, characterized in that, The solar cell testing device also includes a support frame, on which the carrier (1) and the xenon lamp are both mounted.

10. A testing apparatus for a solar cell as described in any one of claims 1 to 8, characterized in that, The testing apparatus for the solar cell also includes wires connected to the probe group.

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