Photovoltaic dc cable joint crimped connection device

Abstract

A kind of photovoltaic DC cable crimping type connecting device, including crimping box, wire pressing block, conductor, sealing pad;When using, staff only needs to place cable in wire pressing groove, wire pressing block is pressed into U-shaped nail stab structure copper conductor with cable, so that cable core and conductor contact, without using other tools, reliable connection between photovoltaic DC cable can be realized in extreme time.

Description

Technical Field

[0001] This invention relates to the field of cable connection technology, and in particular to a crimp-type connection device for photovoltaic DC cable connectors. Background Technology

[0002] In the daily operation and maintenance of photovoltaic power plants, it is often necessary to handle faults such as combiner box, module branch grounding, or other issues. When dealing with branch grounding or branch bus burnout faults, it is often necessary to connect two sections of DC cable. Existing technology connects two sections of DC cable using a traditional plug connection method. This traditional connector has the following core defects, making it unable to meet practical application requirements:

[0003] 1. Traditional connectors use copper cores as the connecting material, which increases costs. China has relatively low copper production. The new solution can effectively reduce copper usage, save resources, and reduce production costs.

[0004] 2. Traditional connectors use a socketing method between the copper cores, which increases contact resistance and reduces current transmission efficiency.

[0005] 3. The disassembly and assembly work is extremely cumbersome, requiring the use of special tools for connection. It cannot solve the problems of lossless cable connection and the inability to directly bury the joints. It is prone to grounding, short circuit and other faults when exposed to water or humid environments. Or, due to personnel's technical or process problems, the connection is easy to be unreliable, causing equipment failure. In addition, the traditional joint installation and replacement method is time-consuming and causes a large loss of power.

[0006] 4. Waterproofing fails after repeated disassembly and reassembly;

[0007] 5. Not suitable for temporary or mobile photovoltaic systems. Summary of the Invention

[0008] To address the technical problems existing in the aforementioned technologies, it is necessary to invent a photovoltaic DC cable connector crimping connection device. A photovoltaic DC cable connector crimping connection device includes a crimp box, a crimping block, a conductor, and a sealing gasket; the crimp box has crimping grooves at its two opposite ends; the conductor includes a U-shaped spiked copper conductor; and the sealing gasket is located around the perimeter of the crimping groove. As can be seen from the above technical solution, the photovoltaic DC cable crimping connection device provided by this invention allows workers to simply place the cable in the crimping groove, and the crimping block presses the cable into the U-shaped spiked copper conductor, making contact between the cable core and the conductor. Without using other tools, it can achieve a reliable connection between cables in a very short time. This is a technological innovation in photovoltaic DC cable connections for the new energy photovoltaic industry. Photovoltaic DC cables are widely used in photovoltaic power plants, greatly reducing the use of copper materials, reducing cable loss during photovoltaic DC cable insulation fault handling, reducing fault handling time, enhancing fault handling reliability, and improving current transmission efficiency, thus saving costs in the current vast number of new energy power generation projects. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a cross-sectional view (front view) of the structure of the present invention. In the figure: crimp box 01, crimping block 02, conductor 03, sealing gasket 04, photovoltaic DC cable 05. Detailed Implementation

[0010] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described in the specification are merely illustrative and not all implementation methods. Other embodiments obtained by those skilled in the art without creative effort based on the disclosure of the present invention all fall within the protection scope of the present invention. The directional terms involved in the specification are set only for the convenience of description and are not intended to limit the orientation of the product structure, and should not be regarded as constraints on the present invention. Please refer to the figure, a photovoltaic DC cable connector crimping connection device includes a crimp box 01, a crimping block 02, a conductor 03, and a sealing gasket 04; in use, the operator only needs to place the cable in the crimping groove, and the crimping block presses the cable into the U-shaped spiked copper conductor, so that the cable core contacts the conductor. Without the use of other tools, a reliable connection between cables can be achieved in a very short time, and the wiring work can be completed. The connector box is made of flame-retardant plastic shell, which is corrosion-resistant, has a certain insulation and mechanical strength, and has a waterproof and dustproof rating of IP67, adapting to a temperature environment of -25℃ to 50℃. The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A photovoltaic DC cable connector crimping connection device, characterized in that: Crimp box, wire clamp, conductor, sealing gasket; The crimping box is provided with crimping grooves at both ends; The conductor includes a U-shaped spike structure and is made of tin-plated copper. The conductor is installed in the connection box in a centrally located position, but is not limited to the above method. The wire pressing block is located directly above the wire pressing groove of the crimping box, and is not limited to the above method; The sealing gasket is located around the inner wall of the pressure groove, and is not limited to the above method.

2. The photovoltaic DC cable connector crimping connection device according to claim 1, characterized in that: The conductor has a U-shaped spike structure, but is not limited to the above-described form.

3. The photovoltaic DC cable connector crimping connection device according to claim 1, characterized in that: The conductor is installed in the connection box in a centrally located position, but is not limited to the above-described form.

4. The photovoltaic DC cable connector crimping connection device according to claim 1, characterized in that: The wire pressing block is located directly above the wire pressing groove of the crimping box, and is not limited to the above method.

5. The photovoltaic DC cable connector crimping connection device according to claim 1, characterized in that: The conductor is connected to the cable via a contact connection, but is not limited to the above-mentioned methods.

6. The photovoltaic DC cable connector crimping connection device according to claim 1, characterized in that: The principle of the connection is that the U-shaped spike structure of the conductor pierces the photovoltaic DC cable through the pressure block, and the cable core is directly and tightly connected to the conductor in the pressure groove, so that the cable achieves a fully conductive state, and it is not limited to the above form.

7. The photovoltaic DC cable connector crimping connection device according to claim 1 shall not be affected by the appearance or shape of other components such as connection boxes, conductors, and cable clips registered in subsequent patents, so as not to affect the implementation of the present invention.

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