A photovoltaic connector metal terminal

By employing a reinforcing mechanism with a sliding plate and a pressure plate in the metal terminals of the photovoltaic connector, combined with threaded connections and anti-slip parts, the problem of poor contact caused by wire swaying is solved, thereby improving stability and cost-effectiveness.

CN224502528UActive Publication Date: 2026-07-14NINGBO DONGHAO PHOTOVOLTAIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DONGHAO PHOTOVOLTAIC TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When using existing metal terminals, the wires tend to move inside the terminal, resulting in a reduced contact area, uneven contact pressure distribution, increased contact resistance, energy loss and aging, and increased maintenance costs.

Method used

Design a photovoltaic connector metal terminal with a reinforcement mechanism including a sliding plate and a pressure plate. The movable plate is inserted into the slot by the movement of the wire, and the pressure plate is pushed closer to enhance stability. The structural stability and friction are improved by threaded connection and anti-slip part. The limiting and sealing structure prevents detachment and impurities from entering.

Benefits of technology

It improves the contact area and pressure distribution uniformity between the conductor and the terminal, reduces contact resistance and maintenance costs, and enhances structural stability and protection performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a photovoltaic connector metal terminal, belongs to the technical field of photovoltaic connectors, and comprises a terminal main body and a wire, an installation cavity is formed in the inside of the terminal main body, a reinforcing mechanism is arranged in the inside of the terminal main body, the reinforcing mechanism comprises two groups of sliding plates, the sliding plates are slidingly connected to the insides of the two groups of terminal main bodies, the two groups of sliding plates are symmetrically arranged, pressing plates are fixedly installed on the opposite surfaces of the two groups of sliding plates, an insertion groove is formed between the bottom of the pressing plate and the inner wall of the terminal main body, a movable plate is inserted into the insertion groove, and the wire is inserted into the installation cavity. When the wire is inserted into the installation cavity of the terminal main body, wire movement drives the movable plate to move and be inserted into the insertion groove, thereby pushing the two groups of pressing plates to be close to each other, the sliding plates slide in the inside of the terminal main body, the two groups of pressing plates are tightly in contact with the outer wall of the wire, the stability of the wire in the inside of the terminal main body is improved, the contact area between the wire and the terminal main body is ensured to be uniform, the contact pressure distribution is uniform, and the maintenance cost is reduced.
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Description

Technical Field

[0001] This application relates to the field of photovoltaic connector technology, and in particular to a photovoltaic connector metal terminal. Background Technology

[0002] In photovoltaic power generation systems, terminals are key components for electrical connections, and their performance directly affects the stability and reliability of the system.

[0003] When existing metal terminals are in use, if an external force is applied after the wire is inserted into the terminal, the wire is prone to shaking inside the terminal due to insufficient tightness in the fit between the two. This shaking reduces the contact area between the wire and the terminal, resulting in uneven distribution of contact pressure and thus increasing contact resistance. The increased contact resistance not only generates more heat during power transmission, causing energy loss, but may also lead to local overheating, accelerate the aging of the terminal and wire, and increase maintenance costs.

[0004] Therefore, this application provides a metal terminal for a photovoltaic connector. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a photovoltaic connector metal terminal that overcomes these deficiencies. The aim is to solve the problem that when a wire is inserted into the existing metal terminal and subjected to external force, the wire tends to wobble inside the terminal due to insufficient tightness in the fit. This wobble reduces the contact area between the wire and the terminal, leading to uneven contact pressure distribution and increased contact resistance. Increased contact resistance not only generates more heat during power transmission, causing energy loss, but may also trigger localized overheating, accelerating the aging of the terminal and wire, and increasing maintenance costs.

[0006] To achieve the above objectives, this application provides the following technical solution: a photovoltaic connector metal terminal, comprising a terminal body and a wire, wherein an installation cavity is provided inside the terminal body, and a reinforcing mechanism is provided inside the terminal body, the reinforcing mechanism comprising two sets of sliding plates, the sliding plates being slidably connected to the interior of the two sets of terminal bodies, and the two sets of sliding plates being symmetrically arranged, and pressure plates being fixedly installed on the opposite surfaces of the two sets of sliding plates, a slot being formed between the bottom of the pressure plate and the inner wall of the terminal body, a movable plate being inserted into the slot, and the wire being inserted into the installation cavity.

[0007] By adopting the above technical solution, when the wire is inserted into the mounting cavity of the terminal body, the movement of the wire will drive the movable plate to move into the slot, thereby pushing the two sets of pressure plates closer together, so that the sliding plate slides inside the terminal body, and the two sets of pressure plates make tight contact with the outer wall of the wire, thereby improving the stability of the wire inside the terminal body, thus ensuring that the contact area and contact pressure distribution between the wire and the terminal body are uniform, and reducing maintenance costs.

[0008] As a preferred technical solution of this application, the outer surface of the wire is equipped with an assembly, the bottom of the terminal body is provided with a thread one, the top of the assembly is provided with a thread two, and the outer circumference of the thread two and the thread one are connected by a connecting sleeve.

[0009] By adopting the above technical solution, after aligning and connecting the assembly with the bottom of the terminal body, rotating the connecting sleeve allows it to simultaneously connect thread one and thread two, further enhancing structural stability.

[0010] As a preferred technical solution of this application, the outer surface of the terminal body is provided with a third thread, which is far away from the first thread.

[0011] By adopting the above technical solution, the three threads facilitate fixing the terminal body to the installation end connected to it according to the actual installation requirements, which is beneficial to the stability of the terminal body after installation.

[0012] As a preferred technical solution of this application, the bottom of both sets of movable plates is fixedly installed with anti-slip parts, and the two sets of anti-slip parts abut against the outer wall of the wire.

[0013] By adopting the above technical solution, the rough structure of the anti-slip part surface increases the friction between the anti-slip part and the wire, so that the wire can smoothly drive the movable plate into the slot when it moves, thus improving the practicality during use.

[0014] As a preferred technical solution of this application, the movable plate is inclined, and the inner wall of the terminal body is set as an inclined surface below the sliding plate, and the bottom of the pressure plate and the contact surface with the movable plate are set as an inclined surface.

[0015] By adopting the above technical solution, the movable plate can move smoothly along the inclined surface of the terminal body when it is moved in conjunction with the wire. The inclined surface of the pressure plate cooperates with the inclined surface of the slot, which effectively reduces the resistance during the movement of the movable plate and improves the installation efficiency.

[0016] As a preferred technical solution of this application, a limiting protrusion ring is fixedly connected to the bottom of the terminal body, and the limiting protrusion ring is located at the end of the mounting cavity near the assembly.

[0017] By adopting the above technical solution, the movable plate is limited by the limiting protrusion ring and blocked by the sliding plate, which effectively prevents the movable plate from leaving the installation cavity.

[0018] As a preferred technical solution of this application, a sealing strip is fixedly installed at the end of each of the two sets of sliding plates away from the pressure plate.

[0019] By adopting the above technical solution, the connection between the sealing strip and the terminal body is sealed, effectively preventing external dust, moisture and other impurities from entering the interior of the terminal body, thus improving the protective performance of the terminal body.

[0020] The beneficial effects of this application are:

[0021] 1. When the wire is inserted into the mounting cavity of the terminal body, the movement of the wire will drive the movable plate to move into the slot, thereby pushing the two sets of pressure plates closer together. This causes the sliding plate to slide inside the terminal body, making the two sets of pressure plates tightly contact the outer wall of the wire. This improves the stability of the wire inside the terminal body, ensuring a uniform distribution of contact area and contact pressure between the wire and the terminal body, and reducing maintenance costs.

[0022] 2. After aligning the assembly with the bottom of the terminal body, rotate the connecting sleeve to connect both thread one and thread two simultaneously, further enhancing structural stability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a cross-sectional structural diagram of this application;

[0025] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the terminal body and the wire connection structure.

[0027] In the diagram: 1. Terminal body; 101. Mounting cavity; 2. Assembly parts; 3. Wire; 4. Reinforcing mechanism; 401. Slide plate; 402. Pressure plate; 403. Slot; 404. Movable plate; 5. Thread 1; 6. Thread 2; 7. Connecting sleeve; 8. Thread 3; 9. Anti-slip part; 11. Limiting protrusion ring; 12. Sealing strip. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Reference Figure 1-4 A photovoltaic connector metal terminal includes a terminal body 1 and a wire 3. The terminal body 1 has an internal mounting cavity 101 and a reinforcing mechanism 4. The reinforcing mechanism 4 includes two sets of sliding plates 401. The sliding plates 401 are slidably connected to the interior of the two sets of terminal bodies 1 and are symmetrically arranged. Pressure plates 402 are fixedly installed on the opposite surfaces of the two sets of sliding plates 401. A slot 403 is formed between the bottom of the pressure plate 402 and the inner wall of the terminal body 1. A movable plate 404 is inserted into the slot 403. The wire 3 is inserted into the mounting cavity 101. The outer surface of the terminal body 1 is provided with a thread 3 8, which is far away from the thread 1 5.

[0030] When the wire 3 is inserted into the mounting cavity 101 of the terminal body 1, the movement of the wire 3 will drive the movable plate 404 to move into the slot 403, thereby pushing the two sets of pressure plates 402 closer together, so that the sliding plate 401 slides inside the terminal body 1, and the two sets of pressure plates 402 are in close contact with the outer wall of the wire 3, thereby improving the stability of the wire 3 inside the terminal body 1, thus ensuring that the contact area and contact pressure distribution between the wire 3 and the terminal body 1 are uniform, and reducing maintenance costs; the threaded triplet 8 makes it easy to fix the terminal body 1 to the mounting end connected to it according to the actual installation requirements, which is beneficial to the stability of the terminal body 1 after installation.

[0031] Reference Figure 1-3 The outer surface of the conductor 3 is fitted with an accessory 2. The bottom of the terminal body 1 is provided with a thread 5, and the top of the accessory 2 is provided with a thread 6. The outer periphery of the thread 6 and the thread 5 is connected with a connecting sleeve 7. The bottom of the two sets of movable plates 404 are fixedly fitted with anti-slip parts 9, and the two sets of anti-slip parts 9 abut against the outer wall of the conductor 3.

[0032] After the assembly 2 is aligned with the bottom of the terminal body 1, the connecting sleeve 7 is rotated to connect thread 1 5 and thread 2 6 simultaneously, further enhancing the structural stability. The rough structure of the anti-slip part 9 increases the friction between it and the wire 3, allowing the wire 3 to smoothly drive the movable plate 404 into the slot 403 when it moves, thus improving its practicality during use.

[0033] Reference Figure 1-3The movable plate 404 is inclined, and the inner wall of the terminal body 1 below the slide plate 401 is set as an inclined surface. The bottom of the pressure plate 402 and the contact surface with the movable plate 404 are also set as inclined surfaces. Sealing strips 12 are fixedly installed on the ends of the two slide plates 401 away from the pressure plate 402. When the movable plate 404 is moved in conjunction with the wire 3, it can move smoothly along the inclined surface of the terminal body 1. The inclined surface of the pressure plate 402 cooperates with the inclined surface of the slot 403, which effectively reduces the resistance during the movement of the movable plate 404 and improves the installation efficiency. The sealing strip 12 seals the connection between the slide plate 401 and the terminal body 1, effectively preventing external dust, moisture and other impurities from entering the interior of the terminal body 1 and improving the protective performance of the terminal body 1.

[0034] Reference Figure 2-4 A limiting protrusion ring 11 is fixedly connected to the bottom of the terminal body 1. The limiting protrusion ring 11 is located at the end of the mounting cavity 101 near the assembly 2. The limiting protrusion ring 11 limits the movable plate 404 and works with the sliding plate 401 to block it, effectively preventing the movable plate 404 from leaving the mounting cavity 101.

[0035] Working principle: When the wire 3 is inserted into the mounting cavity 101 of the terminal body 1, the movement of the wire 3 will drive the movable plate 404 to move into the slot 403, thereby pushing the two sets of pressure plates 402 closer together, so that the sliding plate 401 slides inside the terminal body 1, and the two sets of pressure plates 402 are in close contact with the outer wall of the wire 3, thereby improving the stability of the wire 3 inside the terminal body 1, thus ensuring that the contact area and contact pressure between the wire 3 and the terminal body 1 are evenly distributed, reducing maintenance costs. After the assembly 2 is aligned and connected to the bottom of the terminal body 1, the connecting sleeve 7 is rotated to connect thread 1 5 and thread 2 6 at the same time, further enhancing the structural stability.

[0036] Among them, the thread 3 8 makes it easy to fix the terminal body 1 to the installation end connected to it according to the actual installation requirements, which is beneficial to the stability of the terminal body 1 after installation. The rough structure of the surface of the anti-slip part 9 increases the friction between it and the wire 3, so that the wire 3 can smoothly drive the movable plate 404 into the slot 403 when it moves, which improves the practicality during use.

[0037] Meanwhile, when the movable plate 404 is moved in conjunction with the wire 3, it can move smoothly along the inclined surface of the terminal body 1. The inclined surface of the pressure plate 402 and the inclined surface of the slot 403 cooperate to effectively reduce the resistance during the movement of the movable plate 404 and improve the installation efficiency. The movable plate 404 is limited by the limiting protrusion ring 11 and blocked by the sliding plate 401, which effectively prevents the movable plate 404 from leaving the mounting cavity 101.

[0038] In addition, the sealing strip 12 seals the connection between the sliding plate 401 and the terminal body 1, effectively preventing external dust, moisture and other impurities from entering the interior of the terminal body 1, thus improving the protective performance of the terminal body 1.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic connector metal terminal, comprising a terminal body (1) and a wire (3), characterized in that, The terminal body (1) has an installation cavity (101) inside. The terminal body (1) is provided with a reinforcement mechanism (4). The reinforcement mechanism (4) includes two sets of sliding plates (401). The sliding plates (401) are slidably connected to the interior of the two sets of terminal bodies (1). The two sets of sliding plates (401) are symmetrically arranged. Pressure plates (402) are fixedly installed on the opposite surfaces of the two sets of sliding plates (401). A slot (403) is formed between the bottom of the pressure plate (402) and the inner wall of the terminal body (1). A movable plate (404) is inserted into the slot (403). The wire (3) is inserted into the installation cavity (101).

2. The photovoltaic connector metal terminal according to claim 1, characterized in that, The outer surface of the wire (3) is fitted with a fitting (2), the bottom of the terminal body (1) is provided with a thread (5), the top of the fitting (2) is provided with a thread (6), and the outer circumference of the thread (6) and the thread (5) are connected by a connecting sleeve (7).

3. A photovoltaic connector metal terminal according to claim 2, characterized in that, The outer surface of the terminal body (1) is provided with thread three (8), which is far away from thread one (5).

4. A photovoltaic connector metal terminal according to claim 1, characterized in that, The bottom of both sets of movable plates (404) is fixedly equipped with anti-slip parts (9), and the two sets of anti-slip parts (9) abut against the outer wall of the wire (3).

5. A photovoltaic connector metal terminal according to claim 1, characterized in that, The movable plate (404) is inclined, and the inner wall of the terminal body (1) is set as an inclined surface below the slide plate (401). The bottom of the pressure plate (402) and the contact surface with the movable plate (404) are set as an inclined surface.

6. A photovoltaic connector metal terminal according to claim 2, characterized in that, A limiting protrusion ring (11) is fixedly connected to the bottom of the terminal body (1), and the limiting protrusion ring (11) is located at one end of the mounting cavity (101) near the assembly (2).

7. A photovoltaic connector metal terminal according to claim 1, characterized in that, Both sets of sliding plates (401) have a sealing strip (12) fixedly installed at the end away from the pressure plate (402).