CN115566502A

CN115566502A - Manufacturing method of Y-shaped photovoltaic cable structure

Info

Publication number: CN115566502A
Application number: CN202211227860.XA
Authority: CN
Inventors: 曾磊; 陈新初; 周民
Original assignee: Suzhou Xtong Photovoltaic Technology Co ltd
Current assignee: Suzhou Xtong Photovoltaic Technology Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-01-03

Abstract

A manufacturing method of a Y-shaped photovoltaic cable structure is characterized by comprising the following steps: the method comprises the following steps: preparing a metal connecting piece, a main cable, two branch cables and an insulating shell; step two: welding the battery cell of the main cable at one end of the metal connecting piece in a resistance welding mode, and welding the battery cell of the branch cable I and the battery cell of the branch cable II at the other end of the metal connecting piece; ensuring the electrical connection between the main cable and the branch cables I and II; step three: mounting the insulating housing on the outside of the metal connector; step four: and injecting colloid into the inner cavity of the insulating shell. The main cable and the branch cables can be stably connected, so that stable transmission is ensured; compared with tin soldering, resistance welding does not melt due to high temperature caused by abnormal connector, and the connection is firm; carry out the injecting glue to the cavity in the casing, can increase structural stability and can increase insulating effect, sealed effect again.

Description

Manufacturing method of Y-shaped photovoltaic cable structure

Technical Field

The invention belongs to the technical field of photovoltaic connectors, and particularly relates to a manufacturing method of a Y-shaped photovoltaic cable structure.

Background

In photovoltaic connector technical field, often need use Y type photovoltaic cable, in traditional Y type photovoltaic cable structure, the connected mode between main cable and the branch's cable is usually: a soldered connection or a mechanical connection; when the Y-shaped photovoltaic cable is connected by soldering, if the photovoltaic connector is abnormal, the temperature of the electric core of the cable will rise and even exceed the melting point (231.89 ℃) of tin, the soldering part will be melted, and the connection between the electric cores of the cable will be unstable or disconnected; when a main cable and a branch cable of the Y-type photovoltaic cable are mechanically connected (screwed) with an electric core through the electric core, the main cable and the branch cable are influenced by external tension, the mechanical screwing force is usually only 200N to 300N, and when the Y-type photovoltaic cable is used or installed, the connection of the electric core is loosened or disconnected due to external force; both conventional bar connections may result in unstable or failed cable connections.

Therefore, we have devised a method for manufacturing a Y-shaped photovoltaic cable structure to solve the above problems.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the invention.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a manufacturing method of a Y-shaped photovoltaic cable structure.

In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: a manufacturing method of a Y-shaped photovoltaic cable structure comprises the following steps:

the method comprises the following steps: preparing a metal connecting piece, a main cable, two branch cables and an insulating shell;

step two: welding the battery cell of the main cable at one end of the metal connecting piece in a resistance welding mode, and welding the battery cell of the first branch cable and the battery cell of the second branch cable at the other end of the metal connecting piece; the main cable is ensured to be electrically connected with the branch cable I and the branch cable II;

step three: mounting the insulating housing on the outside of the metal connector;

step four: and injecting colloid into the inner cavity of the insulating shell.

The preferable technical scheme is as follows: before the second step, firstly, forming a plurality of jacks on the metal connecting piece; before the third step, arranging support columns corresponding to the jacks one by one at the lower end in the insulating shell; and when the insulating shell is installed, the jacks on the metal connecting pieces are installed in one-to-one correspondence with the supporting columns.

The preferable technical scheme is as follows: the metal connecting piece is of a plate structure and is divided into three areas, namely a first area, a second area and a third area in sequence, the main cable is connected to the second area, and the first branch cable and the second branch cable are connected to the first area and the third area respectively.

The preferable technical scheme is as follows: the insulating housing comprises an upper box body and a lower box body, and the upper box body is connected with the lower box body in a sealing mode.

The preferable technical scheme is as follows: the insulation casing is provided with glue injection holes, and the glue injection holes are formed in the upper box body.

The preferable technical scheme is as follows: the support column is arranged in the lower box body.

The preferable technical scheme is as follows: the support column and the lower box body are integrally formed.

Due to the application of the technical scheme, compared with the prior art, the invention has the advantages that:

the cable structure manufacturing method can stably connect the main cable and the branch cable, and ensures stable transmission; compared with tin soldering, resistance welding can not be melted due to high temperature caused by abnormal connector, and the connection is firm; the cavity in the shell is injected with glue, so that the structural stability can be improved, and the insulation effect and the sealing effect can be improved; the stability of having guaranteed Y type photovoltaic cable structure has avoided the unstable or the inefficacy condition of connection that the connector is unusual or external force leads to, and the practicality is strong, is fit for promoting.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of a portion of the present invention.

Fig. 3 is a schematic view of the lower case.

Fig. 4 is a schematic view of an insulating housing.

Fig. 5 is a schematic view of a metal connector.

In the above drawings, 1, an insulating housing; 101. an upper box body; 102. a lower box body; 2. a main cable; 3. a branch cable I; 4. a second branch cable; 5. a metal connecting member; 501. a first region; 502. a second region; 503. a third region; 6. a support pillar; 7. a jack; 8. and (6) injecting glue holes.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 5. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Example (b): as shown in fig. 1 to 5, a method for manufacturing a Y-shaped photovoltaic cable structure includes:

the method comprises the following steps: prepare a metal connecting piece 5, a main cable 2, two branch cables and an insulating casing 1, insulating casing 1 includes box body 101 and box body 102 down, goes up box body 101 and can sealing connection down between the box body 102, has seted up glue injection hole 8 on insulating casing 1, and glue injection hole 8 sets up on last box body 101.

Firstly, a plurality of jacks 7 are arranged on a metal connecting piece 5; support columns 6 corresponding to the jacks 7 one by one are arranged at the lower end in the insulating shell 1, the support columns 6 are arranged in the lower box body 102, and the support columns 6 and the lower box body 102 are integrally formed.

Step two: welding the battery cell of the main cable 2 at one end of the metal connecting piece 5 in a resistance welding mode, and welding the battery cell of the branch cable I3 and the battery cell of the branch cable II 4 at the other end of the metal connecting piece 5; the main cable 2 is ensured to be electrically connected with the first branch cable 3 and the second branch cable 4;

step three: mounting the insulating housing 1 outside the metal connecting piece 5; when the insulating shell 1 is installed, the jacks 7 on the metal connecting pieces 5 are installed in one-to-one correspondence with the support columns 6.

Step four: the colloid is injected into the inner cavity of the insulating shell 1, and the colloid is injected as full as possible during glue injection, so that the stability and the insulativity of the inner structure are ensured.

The preferred embodiment is: as shown in fig. 5, the metal connecting member 5 is a plate structure and is divided into three regions, namely a first region 501, a second region 502 and a third region 503, the main cable 2 is connected to the second region 502, and the branch cables one 3 and two 4 are respectively connected to the first region 501 and the third region 503. The welding in different areas can prevent the cables from being too close to each other and is convenient to weld.

The glue for injecting glue is the pouring glue special for the photovoltaic industry, and is relatively better in waterproofness, cohesiveness and stability, and relatively longer in effective time.

The cable structure manufacturing method can stably connect the main cable and the branch cable, and ensures stable transmission; compared with tin soldering, resistance welding can not be melted due to high temperature caused by abnormal connector, and the connection is firm; the cavity in the shell is injected with glue, so that the structural stability can be improved, and the insulation effect and the sealing effect can be improved; the glue is injected by adopting the pouring sealant special for the photovoltaic industry, so that the water resistance, the cohesiveness and the stability are ensured to be effective for a long time; the stability of having guaranteed Y type photovoltaic cable structure has avoided the unstable or the inefficacy condition of connection that the connector is unusual or external force leads to, and the practicality is strong, is fit for promoting.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A manufacturing method of a Y-shaped photovoltaic cable structure is characterized by comprising the following steps:

the method comprises the following steps: preparing a metal connecting piece (5), a main cable (2), two branch cables and an insulating shell (1);

step two: welding the battery cell of the main cable (2) at one end of the metal connecting piece (5) in a resistance welding mode, and welding the battery cell of the branch cable I (3) and the battery cell of the branch cable II (4) at the other end of the metal connecting piece (5); the main cable (2) is ensured to be electrically connected with the branch cable I (3) and the branch cable II (4);

step three: mounting the insulating housing (1) outside the metal connecting piece (5);

step four: and injecting colloid into the inner cavity of the insulating shell (1).

2. The method for manufacturing a Y-shaped photovoltaic cable structure according to claim 1, wherein the method comprises the following steps: before the second step, a plurality of jacks (7) are arranged on the metal connecting piece (5); before the third step, arranging support columns (6) corresponding to the jacks (7) one by one at the lower end in the insulating shell (1); when the insulating shell (1) is installed, the jacks (7) on the metal connecting pieces (5) are installed in one-to-one correspondence with the supporting columns (6).

3. The method for manufacturing a Y-shaped photovoltaic cable structure according to claim 1, wherein the method comprises the following steps: the metal connecting piece (5) is of a plate structure and is divided into three areas, namely a first area (501), a second area (502) and a third area (503), the main cable (2) is connected to the second area (502), and the first branch cable (3) and the second branch cable (4) are respectively connected to the first area (501) and the third area (503).

4. The method for manufacturing a Y-shaped photovoltaic cable structure according to claim 2, wherein: the insulation shell (1) comprises an upper box body (101) and a lower box body (102), and the upper box body (101) and the lower box body (102) can be connected in a sealing mode.

5. The method for manufacturing a Y-shaped photovoltaic cable structure according to claim 4, wherein the method comprises the following steps: the insulation casing (1) is provided with glue injection holes (8), and the glue injection holes (8) are formed in the upper box body (101).

6. The method for manufacturing a Y-shaped photovoltaic cable structure according to claim 4, wherein the method comprises the following steps: the support column (6) is arranged in the lower box body (102).

7. The method of claim 6, wherein the method comprises: the support column (6) and the lower box body (102) are integrally formed.