Photovoltaic diode jumper structure and photovoltaic diode

Abstract

The utility model discloses a photovoltaic diode jumper structure in the technical field of photovoltaic diodes, which comprises a first wiring terminal and a second wiring terminal which are connected through a connecting part, a height difference exists between the first wiring terminal and the second wiring terminal, the second wiring terminal is higher than the first wiring terminal, and the second wiring terminal is higher than the first wiring terminal. And the two sides of the second wiring terminal are processed upwards to form folded edges. The problem of poor heat dissipation performance of the existing structure is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic diodes, in particular to a photovoltaic diode jumper structure. Background Art

[0002] During long-term use, solar cell modules are inevitably covered by obstructions, which form local shadows on the solar cell modules. The solar cell modules in the series branches under the local shadows will be treated as loads and consume the energy generated by other solar cell modules, thereby generating heat and causing local temperature rise, forming a "hot spot effect". When the "hot spot effect" is severe, the solder joints on the battery modules will melt and destroy the grid lines. In order to prevent solar cells from being damaged by the "hot spot effect", a bypass diode module is connected in parallel between the positive and negative electrodes of the solar cell modules in actual operation. There is at least one bypass diode in the module to prevent the energy generated by the illumination module from being consumed by the shaded module.

[0003] A photovoltaic bypass diode is disclosed in the prior art, and its publication number is: CN 211828758 U, which includes a first frame and a second frame, the first frame and the second frame are connected via a copper jumper, the middle of one side of the first frame extends toward the second frame to form a base island, and the two sides of one side of the second frame extend toward the first frame to form a pair of wiring terminals arranged on both sides of the base island, the base island and the wiring terminals form a concave-convex fit, the front and back of the base island are both provided with chips, and the chip is connected to the two wiring terminals via a copper jumper. The disadvantage is that its heat dissipation performance is poor. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a photovoltaic diode jumper structure and a photovoltaic diode, which solve the problem of poor heat dissipation of the prior structure.

[0005] The purpose of the utility model is achieved as follows: a photovoltaic diode jumper structure, comprising a first terminal and a second terminal connected via a connecting portion, there is a height difference between the first terminal and the second terminal, the second terminal is higher than the first terminal, and both sides of the second terminal are processed upward to form folded edges.

[0006] As a further limitation of the present invention, a plurality of notches are processed at the end of the second wiring terminal.

[0007] As a further limitation of the present invention, a plurality of through holes are formed on the second wiring terminal.

[0008] As a further limitation of the present invention, a square boss is provided in the middle of the bottom surface of the second wiring terminal.

[0009] As a further limitation of the present invention, a square groove matching with the square boss is processed in the middle of the top surface of the second connecting terminal.

[0010] A photovoltaic diode comprises a first frame and a second frame, wherein the first frame and the second frame are connected via the jumper structure, a chip is arranged on the first frame, the chip is connected to a first terminal, and a plastic package is wrapped around the chip and the jumper structure.

[0011] As a further limitation of the present invention, a plurality of notches are processed at the end of the second wiring terminal.

[0012] As a further limitation of the present invention, a plurality of through holes are formed on the second wiring terminal.

[0013] As a further limitation of the present invention, a square boss is provided in the middle of the bottom surface of the second connecting terminal, and the square boss abuts against the chip.

[0014] As a further limitation of the present invention, a square groove matching with the square boss is processed in the middle of the top surface of the second connecting terminal.

[0015] Compared with the prior art, the beneficial effect of the utility model is that the utility model improves the heat dissipation capacity of the photovoltaic diode. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 The jumper structure of Example 1 is shown in FIG. Figure 1 .

[0018] Figure 2 The jumper structure of Example 1 is shown in FIG. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the internal structure of the photovoltaic diode of Example 2.

[0020] Figure 4 This is a side view of the internal structure of the photovoltaic diode of Example 2.

[0021] Figure 5 This is a schematic diagram of the external structure of the photovoltaic diode in Example 2.

[0022] Among them, 100 is a jumper structure, 101 is a first terminal, 102 is a second terminal, 102a is a folded edge, 102b is a notch, 102c is a through hole, 102d is a boss, 102e is a groove, 103 is a connecting part, 200 is a first frame, 300 is a second frame, 400 is a chip, and 500 is a plastic package. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] like Figure 1-2 A photovoltaic diode jumper structure shown includes a first terminal 101 and a second terminal 102 connected via a connecting portion 103. There is a height difference between the first terminal 101 and the second terminal 102. The second terminal 102 is higher than the first terminal 101. Both sides of the second terminal 102 are processed upward to form folded edges 102a.

[0026] Specifically, the first terminal 101 and the second terminal 102 are both plate-like structures, the connecting portion 103 is S-shaped, and the height difference is formed by a bending machine, and the folded edge 102a structure needs to be cut first and then bent.

[0027] The existing jumper structure 100 does not have a folded edge 102a structure. When it is installed, the first terminal 101 is attached to the first frame 200, and the second terminal 102 is attached to the second frame 300. The second frame 300 is provided with a chip 400, so the line structure needs to be bent to facilitate its installation; in the traditional structure, since the line structure is relatively wide, its width is almost half the width of the frame, and the chip 400 is relatively thin, during the diode manufacturing process, the second terminal 102 on the copper jumper cannot be completely parallel to the second frame 300, so that the two sides of the second terminal 102 are easily in contact with the second frame 300, thereby forming a short circuit, resulting in product scrapping.

[0028] In the structural design of this embodiment, the two sides of the second terminal 102 of the jumper structure 100 are designed to be an upward folded edge 102a structure. Firstly, the edge of the original second frame 300 is raised, thereby solving the problem of contact short circuit; secondly, raising the two sides increases the longitudinal height, and the folded edge 102a is relatively far away from the heat center of the chip 400, thereby enhancing its heat dissipation effect and being more conducive to the filling of plastic packaging material.

[0029] Furthermore, a plurality of notches 102 b are processed at the end of the second connecting terminal 102 .

[0030] Specifically, three notches 102 b are provided on the edge of the second connecting terminal 102 .

[0031] It should be noted that the design of the notch 102 b increases the contact area between the jumper structure 100 and the plastic package body 500 , thereby enhancing the connection strength and improving the reliability.

[0032] Furthermore, the second wiring terminal 102 is provided with a plurality of through holes 102c.

[0033] Specifically, a pair of through holes 102c are provided.

[0034] It should be noted that the design of the through hole 102 c increases the contact area between the jumper structure 100 and the plastic package body 500 , thereby further enhancing the connection strength and further improving the reliability.

[0035] Furthermore, a square boss 102d is provided in the middle of the bottom surface of the second connecting terminal 102 .

[0036] Specifically, the square boss 102 d is formed by stamping, and the area of ​​the square boss 102 d is slightly smaller than the chip 400 .

[0037] It should be noted that such a design can increase the contact area between the jumper structure 100 and the chip 400, and further improve the current carrying capacity.

[0038] Furthermore, a square groove 102e matching with the square boss 102d is processed in the middle of the top surface of the second connecting terminal 102.

[0039] It should be noted that the square groove 102 e formed by stamping further enhances the connection strength between the square groove 102 e and the plastic package body 500 .

[0040] Example 2

[0041] like Figure 3-5A photovoltaic diode is shown, comprising a first frame 200 and a second frame 300, the first frame 200 and the second frame 300 are connected via the jumper structure 100 of Example 1, a chip 400 is arranged on the first frame 200, the chip 400 is connected to the first terminal 101, the chip 400 and the jumper structure 100 are wrapped with a plastic shell 500, a plurality of notches 102b are processed at the end of the second terminal 102, a plurality of through holes 102c are opened on the second terminal 102, a square boss 102d is provided in the middle of the bottom surface of the second terminal 102, the square boss 102d abuts against the chip 400, and a square groove 102e matching the square boss 102d is processed in the middle of the top surface of the second terminal 102.

[0042] Specifically, three notches 102 b are provided at the edge of the second connecting terminal 102 , a pair of through holes 102 c are provided, and the square boss 102 d is formed by stamping. The area of ​​the square boss 102 d is slightly smaller than the chip 400 .

[0043] The above embodiments are only used to help understand the method and core idea of ​​the utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A photovoltaic diode jumper structure, comprising a first wiring terminal (101) and a second wiring terminal (102) connected via a connecting portion (103), wherein there is a height difference between the first wiring terminal (101) and the second wiring terminal (102), and the second wiring terminal (102) is higher than the first wiring terminal (101), characterized in that: Both sides of the second connecting terminal (102) are processed upwards to form folded edges (102a).

2. A photovoltaic diode jumper structure according to claim 1, characterized in that: The end of the second connecting terminal (102) is processed with a plurality of notches (102b).

3. A photovoltaic diode jumper structure according to claim 1 or 2, characterized in that: The second connecting terminal (102) is provided with a plurality of through holes (102c).

4. A photovoltaic diode jumper structure according to claim 1 or 2, characterized in that: A square boss (102d) is provided in the middle of the bottom surface of the second connecting terminal (102).

5. A photovoltaic diode jumper structure according to claim 4, characterized in that: A square groove (102e) matching with the square boss (102d) is machined in the middle of the top surface of the second connecting terminal (102).

6. A photovoltaic diode, comprising a first frame (200) and a second frame (300), characterized in that: The first frame (200) and the second frame (300) are connected via the jumper structure (100) according to claim 1, a chip (400) is arranged on the first frame (200), the chip (400) is connected to the first terminal (101), and the chip (400) and the jumper structure (100) are wrapped with a plastic shell (500).

7. A photovoltaic diode according to claim 6, characterized in that: The end of the second connecting terminal (102) is processed with a plurality of notches (102b).

8. A photovoltaic diode according to claim 6 or 7, characterized in that: The second connecting terminal (102) is provided with a plurality of through holes (102c).

9. A photovoltaic diode according to claim 6 or 7, characterized in that: A square boss (102d) is provided in the middle of the bottom surface of the second connection terminal (102), and the square boss (102d) abuts against the chip (400).

10. A photovoltaic diode according to claim 9, characterized in that: A square groove (102e) matching with the square boss (102d) is machined in the middle of the top surface of the second connecting terminal (102).

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