Novel bending and flattening axial diode

By designing a novel bent and flattened axial diode and adjusting the lead structure to reduce the width of the junction box, the problem of increased shading area caused by bending and flattening diode leads in photovoltaic modules was solved, thereby improving module efficiency.

CN223912871UActive Publication Date: 2026-02-13ZERUN CO LTD
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Patent Information

Application Number
CN202520437894.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-13
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

When the leads of diodes in photovoltaic modules are bent and flattened, the width of the junction box increases, the shading area increases, and the module efficiency is affected.

Method used

A novel bent and flattened axial diode is designed, in which the flattened part of the lead is parallel to the central axis of the diode body to form a pad, and the size relationship of the pad is controlled to reduce the width of the junction box, adopting a flat structure.

Benefits of technology

By adjusting the lead wire structure, the actual width of the junction box is reduced, the shading area is decreased, and the efficiency of the photovoltaic module is improved.

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Abstract

The utility model relates to a novel bending and flattening axial diode, comprising a diode body, two ends of the diode body are provided with leads, each lead comprises a connecting line and a flattening part, the linear distance between the connecting line and one end of the flattening part far away from the diode body is recorded as L1, and the linear distance between the connecting line and the other end of the flattening part far away from the diode body is recorded as L2. The portion, close to the connecting line, of the flattened portion is bent to form a bonding pad, the linear distance between the connecting line and the end, away from the diode body, of the bonding pad is recorded as L2, and L1 is larger than L2. The utility model relates to the technical field of diodes in photovoltaic modules. According to the utility model, the actual width of the junction box is reduced, the shading area of the junction box is reduced, and the efficiency of the photovoltaic module is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of diode in photovoltaic module, especially a new type of bending and flattening axial diode. BACKGROUND

[0002] The diode in photovoltaic module is placed in the junction box after bending and flattening operation, because the lead is bent and flattened, the overall position of the flattened position is deviated due to the bending, the overall width of the junction box is enlarged, and then the light shielding area of the junction box is enlarged, and the efficiency of the photovoltaic module is affected. UTILITY MODEL CONTENTS

[0003] According to the deficiencies of the prior art, the utility model discloses a new type of bending and flattening axial diode, which has the effects of reducing the actual width of the junction box, reducing the light shielding area of the junction box and improving the efficiency of the photovoltaic module.

[0004] The above technical purpose of the utility model is realized through the following technical scheme:

[0005] A new type of bending and flattening axial diode, comprising a diode body, the two ends of the diode body are provided with lead wires, each lead wire comprises a connecting wire and a flattening part, the straight line distance size of the connecting wire and the flattening part away from one end of the diode body is recorded as L1, the flattening part is bent to form a solder pad near the connecting wire, and the straight line distance size of the connecting wire and the solder pad away from one end of the diode body is recorded as L2.

[0006] L1 is greater than L2.

[0007] In a preferred example, the flattening part can be further configured to have the bending line parallel to the center axis of the diode body.

[0008] In a preferred example, the solder pad can be further configured to have the upper and lower edges parallel to the center axis of the diode body.

[0009] In a preferred example, the solder pad can be further configured to have one side close to the diode body with a length L3.

[0010] The solder pad can be further configured to have one side away from the diode body with a length L4.

[0011] L3 is less than or equal to L4.

[0012] In a preferred example, the flattening part and the solder pad can be further configured to be flat.

[0013] In summary, the utility model includes following at least one beneficial technical effect:

[0014] By forming the soldering pad after partially bending the flattened part, the actual width of the diode body is changed, the actual width of the terminal box is reduced, and the light shielding area of the terminal box is further reduced, thereby improving the efficiency of the photovoltaic module. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a top view structural schematic diagram of the diode body in the embodiment;

[0016] Fig. 2 is a whole structural schematic diagram of the diode body in the embodiment;

[0017] Fig. 3 is a prior art structural schematic diagram mentioned in the background.

[0018] In the figure, 1, diode body; 12, lead wire; 121, connecting wire; 122, flattened part; 13, soldering pad. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail below in combination with the drawings.

[0020] Embodiment:

[0021] Referring to Figs. 1-3 the utility model discloses a novel bending flattened axial diode, including diode body 1, and the both ends of diode body 1 are provided with lead wire 12. The initial state of lead wire 12 is straight line. Lead wire 12 forms connecting wire 121 and flattened part 122 after first bending and then flattening operation.

[0022] The flattened part 122 is bent near the connecting wire 121 to form a soldering pad 13. The straight line where the bending line in the flattened part 122 is located is parallel to the straight line where the central axis of the diode body 1 is located.

[0023] The flattened part 122 and the soldering pad 13 are both flat.

[0024] The straight line distance size of the connecting wire 121 and the flattened part 122 away from one end of the diode body 1 is recorded as L1.

[0025] The straight line distance size of the connecting wire 121 and the soldering pad 13 away from one end of the diode body 1 is recorded as L2. L1 is greater than L2.

[0026] The direction of the partial bending in the lead wire 12 is defined as down, and the upper and lower edges of the soldering pad 13 are both parallel to the straight line where the central axis of the diode body 1 is located.

[0027] The length size of the side of the soldering pad 13 close to the diode body 1 is recorded as L3.

[0028] The length of the side of the pad 13 away from the diode body 1 is denoted as L4. L3 is less than or equal to L4. In this embodiment, L3 is 0.8 times L4.

[0029] The embodiments of the specific implementation are the preferred embodiments of the utility model, not limited to the protection scope of the utility model, so: all equivalent changes made according to the structure, shape, principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A novel bending and flattening axial diode, comprising a diode body (1), both ends of the diode body (1) are provided with a lead wire (12), each of the lead wire (12) comprises a connecting wire (121) and a flattening part (122), the straight line distance dimension of the connecting wire (121) and the flattening part (122) away from one end of the diode body (1) is L1, characterized in that, The flattened part (122) is bent near the connecting line (121) to form a pad (13), and the distance between the connecting line (121) and the pad (13) away from one end of the diode body (1) is L2. L1 is greater than L2.

2. A novel bend and crash axial diode as claimed in claim 1, wherein: The line where the bent line of the flattened part (122) is located is parallel to the line where the central axis of the diode body (1) is located.

3. A novel bend and crash axial diode as claimed in claim 1, wherein: The direction of the part of the lead wire (12) being bent is defined as downward, and the upper and lower edges of the pad (13) are parallel to the line where the central axis of the diode body (1) is located.

4. A novel bend and crash axial diode as claimed in claim 1, wherein: The length of the side of the pad (13) near the diode body (1) is L3. The length of the side of the pad (13) away from the diode body (1) is L4. L3 is less than or equal to L4.

5. A novel bend and crash axial diode as claimed in claim 1, wherein: The flattened part (122) and the pad (13) are flat.