Electrical parameter test terminal for photovoltaic module

Abstract

The utility model provides an electrical parameter test terminal for a photovoltaic module. The electrical parameter test terminal comprises a test terminal main body, a test electrode, a connector positive electrode, a connector negative electrode and at least two suckers, v-shaped frame clamping grooves are formed in two end parts of the test terminal main body, a test electrode is arranged on the upper surface, at least two suckers are arranged on the lower surface, and a connector positive electrode and a connector negative electrode are arranged on the side surface; the positive electrode of the connector is connected and conducted with the negative electrode of the test electrode, and the negative electrode of the connector is connected and conducted with the positive electrode of the test electrode; wherein the test terminal main body comprises a plurality of sub-main bodies, and the plurality of sub-main bodies are connected through springs; the connector positive electrode is provided with a detachable positive electrode inner core, and the connector negative electrode is provided with a detachable negative electrode inner core. According to the invention, matching of various types of photovoltaic modules can be realized; the sucker and the V-shaped frame clamping groove structure can realize rapid installation and fixation of the test terminal, and the production efficiency is improved; and the positive electrode inner core and the negative electrode inner core are detachable, so that the power accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic assembly manufacturing, in particular to an electrical parameter testing terminal of a photovoltaic assembly. Background Art

[0002] In the prior art, the main structure of the electrical test terminal of the photovoltaic module is made of alloy, which makes the test terminal bulky. A clip is designed on the test terminal. During the test, the test terminal clip is added to the C side of the photovoltaic module frame. The test time is long and the clip is loose, resulting in frequent separation of the test terminal from the photovoltaic module, resulting in a large number of rework tests. This problem is avoided by replacing the terminal clip, resulting in high operation and maintenance costs of the test terminal. The cable and wire core of the test terminal connector are crimped by a crimping pliers, which makes the replacement process of the connector more troublesome. A plastic wrench is required to unscrew the MC4 connector, a wire cutter is required to cut the fiber core, and a wire stripper is required to remove the cable insulation. When removing the insulation, ensure that the copper wire of the cable is not broken, avoid the cable wire breakage, looseness during long-term operation, and poor connection. The contact resistance may reach dozens or even hundreds of times the initial value. The power consumed by a connector is equivalent to the power consumed by an entire cable. The large contact resistance makes the heat more serious. This is a vicious cycle, which not only causes unnecessary consumption of electric energy, but also causes electrical line disconnection or electrical fires in the long run.

[0003] Therefore, overcoming the above-mentioned technical defects in the prior art is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of the above problems, the utility model provides a photovoltaic module electrical parameter test terminal.

[0005] The purpose of the utility model can be achieved by the following scheme:

[0006] The utility model provides a photovoltaic assembly electrical parameter test terminal, comprising: a test terminal body, a test electrode, a connector positive electrode, a connector negative electrode and at least two suction cups;

[0007] The two ends of the test terminal body are provided with V-shaped frame slots, the upper surface is provided with the test electrode, the lower surface is provided with at least two suction cups, and the side surface is provided with the connector positive electrode and the connector negative electrode;

[0008] The positive electrode of the connector is connected and conducted with the negative electrode of the test electrode, and the negative electrode of the connector is connected and conducted with the positive electrode of the test electrode;

[0009] Wherein, the test terminal body includes a plurality of sub-bodies, and the plurality of sub-bodies are connected with springs; the positive electrode of the connector is provided with a detachable positive electrode inner core, and the negative electrode of the connector is provided with a detachable negative electrode inner core.

[0010] Further, the plurality of sub-subjects are a first subject, a second subject, and a third subject;

[0011] The first body and the second body are connected by a spring 1, and the second body and the third body are connected by a spring 2;

[0012] The positive pole of the connector is arranged on the side of the first body, and the negative pole of the connector is arranged on the side of the third body.

[0013] Furthermore, the ends of the first body and the third body away from the second body are respectively provided with V-shaped frame grooves.

[0014] Furthermore, the number of the suction cups is 2 or 3.

[0015] Furthermore, a suction cup is respectively disposed on the lower surface of the first body and the lower surface of the third body.

[0016] Furthermore, a suction cup is disposed on the lower surface of each of the first body, the second body and the third body.

[0017] Furthermore, the connector positive electrode includes a positive electrode plug-in, the positive electrode inner core, a positive electrode inner core base, and a tightening cap; the positive electrode inner core and the positive electrode inner core base are detachably connected by a threaded connection.

[0018] Furthermore, the connector negative electrode includes a negative electrode plug-in, the negative electrode inner core, a negative electrode inner core base, and a second tightening cap; the negative electrode inner core and the negative electrode inner core base are detachably connected by a threaded connection.

[0019] Furthermore, the test terminal body is made of glass fiber.

[0020] Furthermore, the test electrode is a copper foil electrode.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] The utility model can quickly match the same photovoltaic module electrical parameter test terminal with various types of photovoltaic modules by dividing the test terminal body into multiple sub-bodies connected by springs. When the photovoltaic module type is switched during the production process, the test terminal does not need to be replaced, and the application can be realized without adjusting and modifying any structure of the test terminal, thereby reducing the replacement cost. The suction cup and V-shaped frame slot structure can realize the rapid installation and fixation of the test terminal, thereby improving the production efficiency. The detachable positive electrode inner core and negative electrode inner core can be replaced regularly and flexibly, thereby ensuring the accuracy of power and preventing the phenomenon of excessive plugging and unplugging times, large contact resistance and distorted power data.

[0023] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A front view of a photovoltaic module electrical parameter test terminal in an embodiment of the utility model is shown;

[0026] Figure 2 A top view of a photovoltaic module electrical parameter test terminal in an embodiment of the utility model is shown;

[0027] Figure 3 A bottom view of a photovoltaic module electrical parameter test terminal in an embodiment of the utility model is shown;

[0028] Figure 4 A right view of a photovoltaic module electrical parameter test terminal in an embodiment of the utility model is shown;

[0029] Figure 5 A schematic structural diagram of the positive electrode of the connector in an embodiment of the utility model is shown;

[0030] Figure 6 A schematic diagram showing the structure of the negative electrode of the connector in an embodiment of the utility model is shown;

[0031] Figure 7 The effect diagram of a photovoltaic module electrical parameter test terminal at the photovoltaic module end in the embodiment of the utility model is shown;

[0032] In the figure, 1-test terminal body, 11-first body, 12-second body, 13-third body, 2-test electrode, 21-positive electrode, 22-negative electrode, 3-connector positive pole, 31-positive pole plug-in, 32-positive pole inner core, 33-positive pole inner core base, 34-tightening cap one, 4-connector negative pole, 41-negative pole plug-in, 42-negative pole inner core, 43-negative pole inner core base, 44-tightening cap two, 5-suction cup, 6-spring one, 7-spring two, 8-cable, 9-V-shaped frame card slot. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0034] The utility model provides a photovoltaic module electrical parameter test terminal, comprising: a test terminal body 1, a test electrode 2, a connector positive electrode 3, a connector negative electrode 4 and at least two suction cups 5;

[0035] The two ends of the test terminal body 1 are provided with V-shaped frame slots 9, the upper surface is provided with the test electrode 2, the lower surface is provided with at least two suction cups 5, and the side surface is provided with the connector positive electrode 3 and the connector negative electrode 4;

[0036] The positive electrode 3 of the connector is connected to the negative electrode 22 of the test electrode 2, and the negative electrode 4 of the connector is connected to the positive electrode 21 of the test electrode 2;

[0037] The test terminal body 1 includes a plurality of sub-bodies, which are connected by springs; the connector positive electrode 3 is provided with a detachable positive electrode inner core 32 , and the connector negative electrode 4 is provided with a detachable negative electrode inner core 42 .

[0038] The utility model can quickly match the same photovoltaic module electrical parameter test terminal with various types of photovoltaic modules by dividing the test terminal body into multiple sub-bodies connected by springs. When the photovoltaic module type is switched during the production process, the test terminal does not need to be replaced, and the application can be realized without adjusting and modifying any structure of the test terminal, thereby reducing the replacement cost. The suction cup and V-shaped frame slot structure can realize the rapid installation and fixation of the test terminal, thereby improving the production efficiency. The detachable positive electrode inner core and negative electrode inner core can be replaced regularly and flexibly, thereby ensuring the accuracy of power and preventing the phenomenon of excessive plugging and unplugging times, large contact resistance and distorted power data.

[0039] In combination with the embodiment of the present utility model, the structure of a photovoltaic module electrical parameter test terminal provided by the present utility model is described below.

[0040] See also Figure 1The multiple sub-bodies of the test terminal body 1 are a first body 11, a second body 12, and a third body 13; the first body 11 and the second body 12 are connected by a spring 1 6, and the second body 12 and the third body 13 are connected by a spring 2 7. The elasticity of the spring 1 6 and the spring 2 7 can be used to achieve compatibility with photovoltaic modules of different widths. Preferably, the test terminal body 1 is made of glass fiber, which is a lightweight material that replaces metal material, reduces weight, reduces the labor intensity of operators, and reduces material costs.

[0041] The connector positive electrode 3 is arranged on the side of the first body 11, the connector negative electrode 4 is arranged on the side of the third body 13, and the test electrode 2 is arranged on the upper surface of the first body 11 or the third body 13. Preferably, the test electrode 2 is a copper foil electrode, and the copper foil electrode has a copper foil electrode positive electrode and a copper foil electrode negative electrode.

[0042] In combination with the embodiment of the utility model, the ends of the first body 11 and the third body 13 away from the second body 12 are each provided with a V-shaped frame card slot 9. A suction cup 5 is provided on the lower surface of the test terminal body 1. Preferably, the number of the suction cups is 2 or 3; when the number of the suction cups 5 is 2, a suction cup 5 is provided on the lower surface of the first body 11 and the third body 13; when the number of the suction cups 5 is 3, a suction cup 5 is provided on the lower surface of the first body 11, the second body 12, and the third body 13. The V-shaped frame card slot 9 is used to realize the rapid installation of the test terminal on the C surface of the photovoltaic module frame. The suction cup 5 is fixed to the lower surface of the test terminal body 1 by a screw, which is used to assist the V-shaped frame card slot 9 to make the test terminal more firmly fixed to the photovoltaic module, ensuring that the photovoltaic module will not fall off during the operation on the conveyor belt.

[0043] The negative electrode 4 of the connector is connected to the positive electrode 21 of the test electrode 2 through the cable 8, and the positive electrode 3 of the connector is connected to the negative electrode 22 of the test electrode 2 through the cable 8. The cable 8 is fixedly installed inside the internal wire groove of the test terminal body 1 and the spring 1 6 and the spring 2 7. The positive electrode 21 and the negative electrode 22 of the test electrode 2 are connected to the probes of the power tester, the EL image infrared tester, and the insulation withstand voltage tester to provide power to the photovoltaic module; the negative electrode 4 of the connector is plugged into the positive electrode of the connector of the photovoltaic module MC4 under test, and the positive electrode 3 of the connector is plugged into the negative electrode of the connector of the photovoltaic module MC4 under test.

[0044] In conjunction with the embodiments of the present utility model, the photovoltaic module electrical parameter test terminal is referred to as the test terminal in this embodiment. Figure 5 and Figure 6When the test terminal is tested many times, the positive electrode core 32 of the connector positive pole 3 and the negative electrode core 42 of the connector negative pole 4 on the test terminal are seriously worn, the contact internal resistance becomes larger, and the test data is distorted. To solve this problem, the utility model designs the structure of the positive electrode core 32 of the connector positive pole 3 and the negative electrode core 42 of the connector negative pole 4 on the test terminal.

[0045] In conjunction with the embodiments of the present invention, refer to Figure 5 The connector positive electrode 3 includes a positive electrode plug-in 31, a positive electrode core 32, a positive electrode core base 33, and a tightening cap 34 from left to right in the figure. The positive electrode core 32 and the positive electrode core base 33 are detachably connected by a threaded connection.

[0046] In conjunction with the embodiments of the present invention, refer to Figure 6 The connector negative electrode 4 includes a negative electrode plug-in 41, a negative electrode inner core 42, a negative electrode inner core base 43, and a tightening cap 44 from left to right in the figure; the negative electrode inner core 42 and the negative electrode inner core base 43 are detachably connected by a threaded connection.

[0047] In combination with the embodiments of the utility model, the original crimping mode of the positive electrode inner core 32 and the negative electrode inner core 42 are changed to a threaded connection mode. In this way, when replacing, it is only necessary to unscrew the positive electrode plug-in 31 and the tightening cap 1 34, the negative electrode plug-in 41 and the tightening cap 2 44, and open the positive electrode inner core 32 and the positive electrode inner core base 33, the negative electrode inner core 42 and the negative electrode inner core base 43 with a wrench, and replace the positive electrode inner core 32 and the negative electrode inner core 42. There is no need to cut the crimped cables, strip the wires for a second time, and crimp them for a second time. The efficiency is doubled, and the increased cost of replacing the cables is avoided at the same time. The phenomenon of too many plugging and unplugging times, large contact resistance, and distortion of power data is eliminated, thereby ensuring the accuracy of the test results.

[0048] In conjunction with the embodiments of the present invention, refer to Figure 7 When the photovoltaic module electrical parameter test terminal of the utility model is in use, the V-shaped frame slots 9 on both sides of the test terminal are installed on the C surface of the photovoltaic module frame, and the suction cup 5 is used to assist the V-shaped frame slots 9 to make the test terminal more firmly fixed to the photovoltaic module, ensuring that the photovoltaic module will not fall off during the operation on the conveyor belt. The negative pole 4 of the connector is plugged into the positive pole of the MC4 connector of the photovoltaic module under test, and the positive pole 3 of the connector is plugged into the negative pole of the MC4 connector of the photovoltaic module under test. The positive electrode 21 and the negative electrode 22 of the test electrode 2 are connected to the probes of the power tester, the EL image infrared tester, and the insulation withstand voltage tester to provide power to the photovoltaic module.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A photovoltaic module electrical parameter test terminal, characterized in that: include: A test terminal body (1), a test electrode (2), a connector positive electrode (3), a connector negative electrode (4) and at least two suction cups (5); The two ends of the test terminal body (1) are provided with V-shaped frame slots (9), the upper surface is provided with the test electrode (2), the lower surface is provided with at least two suction cups (5), and the side surface is provided with the connector positive electrode (3) and the connector negative electrode (4); The positive electrode (3) of the connector is connected and conducted with the negative electrode (22) of the test electrode (2), and the negative electrode (4) of the connector is connected and conducted with the positive electrode (21) of the test electrode (2); The test terminal body (1) comprises a plurality of sub-bodies, and the plurality of sub-bodies are connected by springs; the connector positive electrode (3) is provided with a detachable positive electrode inner core (32), and the connector negative electrode (4) is provided with a detachable negative electrode inner core (42).

2. The photovoltaic module electrical parameter test terminal according to claim 1, characterized in that: The plurality of sub-bodies are a first body (11), a second body (12), and a third body (13); The first body (11) and the second body (12) are connected via a spring 1 (6), and the second body (12) and the third body (13) are connected via a spring 2 (7); The connector positive electrode (3) is arranged on the side of the first body (11), the connector negative electrode (4) is arranged on the side of the third body (13), and the test electrode (2) is arranged on the upper surface of the first body (11) or the third body (13).

3. The photovoltaic module electrical parameter test terminal according to claim 2, characterized in that: The ends of the first body (11) and the third body (13) away from the second body (12) are each provided with a V-shaped frame slot (9).

4. The photovoltaic module electrical parameter test terminal according to claim 2, characterized in that: The number of the suction cups (5) is 2 or 3.

5. The photovoltaic module electrical parameter test terminal according to claim 4, characterized in that: A suction cup (5) is respectively provided on the lower surface of the first main body (11) and the lower surface of the third main body (13).

6. The photovoltaic module electrical parameter test terminal according to claim 4, characterized in that: A suction cup (5) is respectively provided on the lower surface of the first body (11), the second body (12) and the third body (13).

7. The photovoltaic module electrical parameter test terminal according to claim 1, characterized in that: The connector positive electrode (3) comprises a positive electrode plug-in (31), the positive electrode inner core (32), a positive electrode inner core base (33), and a tightening cap (34); the positive electrode inner core (32) and the positive electrode inner core base (33) are detachably connected by a threaded connection.

8. The photovoltaic module electrical parameter test terminal according to claim 1, characterized in that: The connector negative electrode (4) comprises a negative electrode plug-in (41), the negative electrode inner core (42), a negative electrode inner core base (43), and a second tightening cap (44); the negative electrode inner core (42) and the negative electrode inner core base (43) are detachably connected by a threaded connection.

9. The photovoltaic module electrical parameter test terminal according to claim 1, characterized in that: The test terminal body (1) is made of glass fiber.

10. The photovoltaic module electrical parameter test terminal according to claim 1, characterized in that: The test electrode (2) is a copper foil electrode.

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