CN114171987B

CN114171987B - Photovoltaic cable connector

Info

Publication number: CN114171987B
Application number: CN202111522985.0A
Authority: CN
Inventors: 梅有明
Original assignee: Jia Yong Electrical Appliances Co ltd Of Baoying County
Current assignee: Jia Yong Electrical Appliances Co ltd Of Baoying County
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2023-07-28
Anticipated expiration: 2041-12-14
Also published as: CN114171987A

Abstract

The application discloses photovoltaic cable connector, including cable connector waterproof sleeve (3), cable primary and secondary joint (2) and two cable (1) of waiting to be wired, the terminal head of two cable (1) of waiting to be wired is connected through cable primary and secondary joint (2), cable connector waterproof sleeve (3) cup joints on cable primary and secondary joint (2) and with cable primary and secondary joint (2) fixed connection; still include outside sleeve (4), cable joint waterproof sleeve (3) cup joint in outside sleeve (4), still be provided with two elasticity anchor clamps dish (5) in outside sleeve (4), elasticity anchor clamps dish (5) are fixed with outside sleeve (4), and cable joint waterproof sleeve (3) set up between two elasticity anchor clamps dish (5). According to the technical scheme, the situation that the joint connection is not firm after the cable joint is subjected to excessive tension is prevented, and the energy transmission and the normal operation of the platform are ensured.

Description

Photovoltaic cable connector

Technical Field

The invention relates to a photovoltaic cable connector, and belongs to the field of power supply equipment.

Background

In recent years, the mariculture yield and the marine product demand in China are both in an increasing situation, but the total seawater fishing amount is continuously reduced, and the culture yield is increased and slowed down. Traditional bay culture space tends to be saturated and development is limited. Therefore, the development of novel marine fishery cultivation techniques and equipment to enable mariculture to move from estuary and offshore to open sea has become a necessary choice for development. However, the traditional cultivation net cage cannot leave the estuary at late time due to the problem that the traditional cultivation net cage is lack of energy supply, poor in wind and wave resistance and incapable of carrying modern cultivation equipment and the like. In the prior art, a self-generating power supply system is configured for a large-scale open sea aquaculture net cage so as to solve the problem of energy supply, and the commonly used self-generating power supply system comprises photovoltaic power generation, tidal power generation and the like. In general, there is not enough space for installing a photovoltaic power generation device on an offshore platform, the photovoltaic power generation device needs to be placed on a sea surface far away from the platform, and a power supply line from the photovoltaic power generation device to the offshore platform cannot use an overhead line due to limitation of offshore wind power, so that the power supply line can only be arranged under water. The cable is limited by a cable layout mode, the cable from the photovoltaic power generation equipment to the power supply line of the ocean platform can be influenced by ocean tides to displace, in the cable displacement process, the self strength of the cable can ensure that the situation of broken inner cores cannot occur, but the joint end of the cable can be disconnected due to the fact that the tensile capacity is weaker and can receive larger pulling force in the ocean tides, and therefore the transmission of energy sources and the normal operation of the platform are influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a photovoltaic cable connector, which can prevent the situation of unstable connector connection after the cable connector is subjected to excessive tension, and ensure the transmission of energy and the normal operation of a platform.

The technical scheme adopted by the invention is that the photovoltaic cable connector comprises a cable connector waterproof sleeve (3), a cable primary-secondary connector (2) and two cables to be connected (1), wherein the connecting ends of the two cables to be connected (1) are connected through the cable primary-secondary connector (2), and the cable connector waterproof sleeve (3) is sleeved on the cable primary-secondary connector (2) and fixedly connected with the cable primary-secondary connector (2);

the cable connector waterproof sleeve (3) is sleeved in the outer sleeve (4), two elastic clamping discs (5) are further arranged in the outer sleeve (4), the elastic clamping discs (5) are fixed with the outer sleeve (4), the cable connector waterproof sleeve (3) is arranged between the two elastic clamping discs (5), two cables (1) to be connected penetrate through the two elastic clamping discs (5) respectively, and the elastic clamping discs (5) are in compression contact with the cables (1) to be connected; an arc buffer section (1-1) is arranged on the cable (1) to be wired between the cable primary-secondary connector (2) and the elastic clamping disc (5).

Preferably, in the photovoltaic cable connector, the elastic clamping disc (5) is an elastic sheet made of a hard elastomer, an annular clamping groove is formed in the inner wall of the outer sleeve (4), and the edge of the elastic clamping disc (5) is clamped in the clamping groove in the inner wall of the outer sleeve (4); the middle part of elasticity anchor clamps dish (5) is provided with the protruding section of arc, waits to join wire cable (1) and pass the protruding section of arc middle part and pass through frictional force fixed connection between the two.

Optimally, in the photovoltaic cable joint connector, the outer sleeve (4) is provided with a plurality of positioning screws (6), the threaded ends of the positioning screws (6) penetrate through the outer wall of the outer sleeve (4) and the end parts of the positioning screws are in threaded connection with the cable joint waterproof sleeve (3); the through hole on the waterproof sleeve (3) of the cable connector for the cable (1) to pass through is tightly pressed and contacted with the outer surface of the cable (1) to be connected and fixedly connected with the cable (1) to be connected.

Preferably, in the photovoltaic cable connector, sleeve blocking heads (7) are respectively arranged at openings at two ends of the outer sleeve (4), and the sleeve blocking heads (7) are fixed with the ends of the outer sleeve (4) through bolts and block the openings at the ends of the outer sleeve (4); the two cables (1) to be wired respectively pass through the sleeve blocking head (7) and are fixed with the sleeve blocking head (7); an arc-shaped buffer section II (1-2) is arranged on the cable (1) to be wired between the sleeve blocking head (7) and the elastic clamping disc (5); the arc-shaped buffer section (1-1) and the arc-shaped buffer section II (1-2) are formed by bending the cable (1) to be connected.

Optimally, the photovoltaic cable joint connector is characterized in that a cable (1) to be wired passes through the cable clamping block (8) and is tightly and fixedly connected with the cable clamping block (8); the cable clamping block (8) and the sleeve blocking head (7) are relatively fixed.

Optimally, the two end openings of the outer sleeve (4) are respectively provided with an end cover plate (9), the sleeve blocking head (7) is fixed with the end cover plate (9) through bolts and blocks the end opening of the outer sleeve (4), the middle part of the end cover plate (9) is provided with an extrusion limiting cylinder (10), and the cable clamping block (8) is inserted in the extrusion limiting cylinder (10) and is matched with the extrusion limiting cylinder (10) in shape; the sleeve blocking head (7) is internally provided with a containing cavity (11), and the extrusion limiting cylinder (10) is inserted into the containing cavity (11).

Optimally, in the photovoltaic cable joint connector, a through hole for a cable (1) to be connected to pass through is formed in the cable clamping block (8), and a plurality of annular extrusion rubber rings are arranged in the through hole, are sleeved on the cable (1) to be connected to each other and are respectively in compression contact with the surface of the cable (1) to be connected to each other and the inner surface of the through hole of the cable clamping block (8); the cable clamping block (8) is conical, the conical bottom end surface of the cable clamping block (8) faces the cable joint waterproof sleeve (3), the extrusion limiting cylinder (10) is a conical cylinder, and a plurality of strip-shaped grooves (12) which are uniformly distributed are formed in the conical side surface of the extrusion limiting cylinder (10); after the extrusion limiting cylinder (10) is inserted into the accommodating cavity (11), the strip-shaped groove (12) on the extrusion limiting cylinder (10) contracts and pushes the cable clamping block (8) to move towards the cable joint waterproof sleeve (3).

Preferably, in the photovoltaic cable connector, the outer sleeve (4) comprises a middle section cylinder (41) and end cylinders (42) positioned at two ends of the middle section cylinder (41), and the middle section cylinder (41) and the end cylinders (42) are in butt joint to form a cylinder; the edge of the elastic wire clamping disc (5) is arranged between the middle section cylinder (41) and the end cylinder (42) and is clamped and fixed by the middle section cylinder (41) and the end cylinder (42).

Optimally, in the photovoltaic cable joint connector, the sleeve blocking head (7) is provided with the groove (71), the groove (71) is internally provided with the fixed rubber ring (73), and the fixed rubber ring (73) is sleeved on the cable (1) to be wired; a threaded plug (72) is arranged in the groove (71), the threaded plug (72) is sleeved on the cable (1) to be connected and is in threaded connection with the groove (71), and the threaded plug (72) presses the fixed rubber ring (73) and then the fixed rubber ring (73) is tightly pressed and fixed with the cable (1) to be connected.

Optimally, the photovoltaic cable joint connector is characterized in that the cable joint waterproof sleeve (3) and the middle section cylinder (41) are filled with cable joint pouring sealant; the middle section cylinder body (41) is connected with a water filling ball.

The application has the advantages that:

in the technical scheme of the application, through the setting of elasticity anchor clamps dish (5) and arc buffer section (1-1), reduce the pulling force that cable primary and secondary joint (2) of the terminal head of two cable (1) of waiting to be wired bore. In the original installation state, the cable length of the arc-shaped buffer section (1-1) is longer than the distance from the elastic clamping disc (5) to the cable primary-secondary connector (2), so that the arc-shaped buffer section (1-1) presents an arc-shaped initial state. Under the condition that the cable (1) to be wired is subjected to tension, the tension is transferred to the elastic clamping disc (5), the middle part of the elastic clamping disc (5) is protruded in the direction away from the cable primary-secondary connector (2) after receiving the tension, and the arc-shaped buffer section (1-1) is straightened after being pulled, so that the tension applied to the cable primary-secondary connector (2) is reduced. After the tensile force applied to the cable (1) to be wired disappears, the elastic clamping disc (5) is restored to the original shape through the elastic restoring force of the elastic clamping disc and pushes the arc-shaped buffer section (1-1) to return to the initial state, so that the effective buffer can be provided after the cable (1) to be wired is pulled next time.

In the technical scheme of this application, in order to guarantee that elasticity cartridge (5) has better elastic deformation power and elasticity restoring force, set up elasticity cartridge (5) into the elastic sheet of stereoplasm elastomer preparation, the stereoplasm elastomer of optional use includes polymer materials such as TPU, TPEE. The arc-shaped protruding section at the middle part of the elastic wire clamping disc (5) can enable the elastic wire clamping disc (5) to be easier to elastically deform and recover the initial shape after being elastically deformed, so that the working stability of the elastic wire clamping disc is ensured. The through hole is formed in the middle of the arc-shaped protruding section for the cable (1) to be connected to pass through, and elastic deformation materials such as rubber rings can be arranged on the inner wall of the through hole in the middle of the arc-shaped protruding section so as to increase friction with the outer surface of the cable (1) to be connected.

In the technical scheme of the application, because the both ends of cable joint waterproof sleeve (3) have set up arc buffer section (1-1) respectively for cable joint waterproof sleeve (3) probably have great axial activity in outside sleeve (4), can make arc buffer section (1-1) produce tiredly after long-time the use. The cable joint waterproof sleeve (3) is fixed in the outer sleeve (4) through the positioning screw (6) so as to reduce the axial movement of the cable joint waterproof sleeve (3) in the outer sleeve (4).

In the technical scheme of the application, arc buffer section two (1-2) have been set up in outside sleeve (4), through arc buffer section two (1-2) and arc buffer section (1-1) cooperation use, increase the extension range of tension deformation of waiting wiring cable (1) in outside sleeve (4), further reduce the pulling force that cable primary and secondary connects (2) received. And because of the radial space limitation inside the outer sleeve (4), if the arc-shaped buffer section (1-1) is bent by a larger angle so that the length of the arc-shaped buffer section (1-1) is longer, larger internal stress can be generated on the arc-shaped buffer section (1-1), and fatigue fracture is easy to occur at the arc-shaped buffer section (1-1). Therefore, the two buffer sections of the arc buffer section II (1-2) and the arc buffer section (1-1) are arranged, and the condition of internal stress concentration on the cable (1) to be wired is reduced under the condition of ensuring a larger extension length.

In the technical scheme of the application, through the setting of cable clamp piece (8), arc buffer section two (1-2) are prevented to be straightened. When the sleeve blocking head (7) is arranged at the end part of the outer sleeve (4), the extrusion limiting cylinder (10) accommodates the cavity (11) and enables the extrusion limiting cylinder (10) to shrink, and the cable clamping block (8) is pushed to the cable joint waterproof sleeve (3) in the shrinkage process of the extrusion limiting cylinder (10) so that the arc-shaped buffer section II (1-2) is formed or the cable axial length of the arc-shaped buffer section II (1-2) is increased.

In the technical scheme of this application, if set up outside sleeve (4) into integrated into one piece's form, the installation of elasticity anchor clamps dish (5) has great inconvenience, so set up outside sleeve (4) into middle section barrel (41), the form of tip barrel (42) butt joint, make things convenient for the installation of elasticity anchor clamps dish (5) fixed.

In the technical scheme of the application, screw plug (72) is through the reasoning of threaded connection in-process, extrudees fixed rubber ring (73) and makes fixed rubber ring (73) produce elastic deformation, and the internal diameter is reduced and is sticiss with waiting to join cable (1) surface behind fixed rubber ring (73) elastic deformation to increase wait to join cable (1) and sleeve plug (7) fixed firmness.

The waterproof effect of the waterproof sleeve (3) and the middle section cylinder (41) of the cable connector can be improved through the cable connector pouring sealant. The depth of the whole cable connector in the sea water can be adjusted by adjusting the water filling amount in the water filling ball, so that the cable connector and the cables (1) to be connected at two ends of the cable connector are positioned in the same depth, and the cable connector is prevented from being influenced by extra tension at the cable connection position due to overhigh depth or overlow depth.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present application;

FIG. 2 is a schematic view of the structure of the end barrel of the present application;

FIG. 3 is a schematic view of the cable clamp block of the present application;

fig. 4 is a schematic structural diagram of embodiment 2 of the present application.

Detailed Description

The technical features of the present invention are further described below with reference to the accompanying drawings and the specific embodiments.

Example 1

The photovoltaic cable connector comprises an outer sleeve (4), a cable connector waterproof sleeve (3), a cable primary-secondary connector (2) and two cables to be connected (1), wherein the connecting ends of the two cables to be connected (1) are connected through the cable primary-secondary connector (2), and the cable connector waterproof sleeve (3) is sleeved on the cable primary-secondary connector (2) and fixedly connected with the cable primary-secondary connector (2); the cable joint waterproof sleeve (3) is sleeved in the outer sleeve (4), two elastic clamping discs (5) are further arranged in the outer sleeve (4), the elastic clamping discs (5) are fixed with the outer sleeve (4), the cable joint waterproof sleeve (3) is arranged between the two elastic clamping discs (5), two cables (1) to be wired respectively penetrate through the two elastic clamping discs (5), and the elastic clamping discs (5) are in compressed contact with the cables (1) to be wired; an arc buffer section (1-1) is arranged on the cable (1) to be wired between the cable primary-secondary connector (2) and the elastic clamping disc (5).

The tension born by the cable primary-secondary connector (2) of the terminal heads of the two cables (1) to be connected is reduced through the arrangement of the elastic wire clamping disc (5) and the arc-shaped buffer section (1-1). In the original installation state, the cable length of the arc-shaped buffer section (1-1) is longer than the distance from the elastic clamping disc (5) to the cable primary-secondary connector (2), so that the arc-shaped buffer section (1-1) presents an arc-shaped initial state. Under the condition that the cable (1) to be wired is subjected to tension, the tension is transferred to the elastic clamping disc (5), the middle part of the elastic clamping disc (5) is protruded in the direction away from the cable primary-secondary connector (2) after receiving the tension, and the arc-shaped buffer section (1-1) is straightened after being pulled, so that the tension applied to the cable primary-secondary connector (2) is reduced. After the tensile force applied to the cable (1) to be wired disappears, the elastic clamping disc (5) is restored to the original shape through the elastic restoring force of the elastic clamping disc and pushes the arc-shaped buffer section (1-1) to return to the initial state, so that the effective buffer can be provided after the cable (1) to be wired is pulled next time.

The elastic wire clamping disc (5) is an elastic sheet made of a hard elastomer, an annular clamping groove is formed in the inner wall of the outer sleeve (4), and the edge of the elastic wire clamping disc (5) is clamped in the clamping groove in the inner wall of the outer sleeve (4); the middle part of elasticity anchor clamps dish (5) is provided with the protruding section of arc, waits to join wire cable (1) and pass the protruding section of arc middle part and pass through frictional force fixed connection between the two.

In order to ensure that the elastic clamping disc (5) has better elastic deformation force and elastic restoring force, the elastic clamping disc (5) is arranged as an elastic sheet made of a hard elastomer, and the optional hard elastomer comprises high polymer materials such as TPU, TPEE and the like. The arc-shaped protruding section at the middle part of the elastic wire clamping disc (5) can enable the elastic wire clamping disc (5) to be easier to elastically deform and recover the initial shape after being elastically deformed, so that the working stability of the elastic wire clamping disc is ensured. The through hole is formed in the middle of the arc-shaped protruding section for the cable (1) to be connected to pass through, and elastic deformation materials such as rubber rings can be arranged on the inner wall of the through hole in the middle of the arc-shaped protruding section so as to increase friction with the outer surface of the cable (1) to be connected.

A plurality of positioning screws (6) are arranged on the outer sleeve (4), the threaded ends of the positioning screws (6) penetrate through the outer wall of the outer sleeve (4), and the end parts of the positioning screws are in threaded connection with the waterproof sleeve (3) of the cable joint; the through hole on the waterproof sleeve (3) of the cable connector for the cable (1) to pass through is tightly pressed and contacted with the outer surface of the cable (1) to be connected and fixedly connected with the cable (1) to be connected.

Because the two ends of the cable joint waterproof sleeve (3) are respectively provided with the arc-shaped buffer sections (1-1), the cable joint waterproof sleeve (3) can have larger axial movement in the outer sleeve (4), and the arc-shaped buffer sections (1-1) can be fatigued after long-time use. The cable joint waterproof sleeve (3) is fixed in the outer sleeve (4) through the positioning screw (6) so as to reduce the axial movement of the cable joint waterproof sleeve (3) in the outer sleeve (4).

The outer sleeve (4) comprises a middle section cylinder body (41) and end part cylinder bodies (42) positioned at two ends of the middle section cylinder body (41), and the middle section cylinder body (41) is in butt joint with the end part cylinder bodies (42) to form a cylinder; the edge of the elastic wire clamping disc (5) is arranged between the middle section cylinder (41) and the end cylinder (42) and is clamped and fixed by the middle section cylinder (41) and the end cylinder (42).

If the outer sleeve (4) is arranged in an integrally formed mode, the elastic clamping disc (5) is inconvenient to install, so that the outer sleeve (4) is arranged in a butt joint mode of the middle section cylinder body (41) and the end cylinder body (42), and the elastic clamping disc (5) is convenient to install and fix.

The cable joint waterproof sleeve (3) and the middle section cylinder (41) are filled with cable joint pouring sealant; the middle section cylinder body (41) is connected with a water filling ball.

Example 2

This embodiment differs from embodiment 1 in that: sleeve blocking heads (7) are respectively arranged at openings at two ends of the outer sleeve (4), and the sleeve blocking heads (7) are fixed with the end parts of the outer sleeve (4) through bolts and block the end opening of the outer sleeve (4); the two cables (1) to be wired respectively pass through the sleeve blocking head (7) and are fixed with the sleeve blocking head (7); an arc-shaped buffer section II (1-2) is arranged on the cable (1) to be wired between the sleeve blocking head (7) and the elastic clamping disc (5); the arc-shaped buffer section (1-1) and the arc-shaped buffer section II (1-2) are formed by bending the cable (1) to be connected.

An arc-shaped buffer section II (1-2) is arranged in the outer sleeve (4), the arc-shaped buffer section II (1-2) is matched with the arc-shaped buffer section (1-1) for use, the tension deformation extension range of the cable (1) to be connected in the outer sleeve (4) is increased, and the tensile force born by the cable primary-secondary connector (2) is further reduced. And because of the radial space limitation inside the outer sleeve (4), if the arc-shaped buffer section (1-1) is bent by a larger angle so that the length of the arc-shaped buffer section (1-1) is longer, larger internal stress can be generated on the arc-shaped buffer section (1-1), and fatigue fracture is easy to occur at the arc-shaped buffer section (1-1). Therefore, the two buffer sections of the arc buffer section II (1-2) and the arc buffer section (1-1) are arranged, and the condition of internal stress concentration on the cable (1) to be wired is reduced under the condition of ensuring a larger extension length.

The cable (1) to be wired passes through the cable clamping block (8) and is tightly and fixedly connected with the cable clamping block (8); the cable clamping block (8) and the sleeve blocking head (7) are relatively fixed.

The two end openings of the outer sleeve (4) are respectively provided with an end cover plate (9), the sleeve blocking head (7) is fixed with the end cover plate (9) through bolts and blocks the end opening of the outer sleeve (4), the middle part of the end cover plate (9) is provided with an extrusion limiting cylinder (10), and the cable clamping block (8) is inserted into the extrusion limiting cylinder (10) and is matched with the extrusion limiting cylinder (10) in shape; the sleeve blocking head (7) is internally provided with a containing cavity (11), and the extrusion limiting cylinder (10) is inserted into the containing cavity (11).

The cable clamping block (8) is provided with a through hole for the cable (1) to pass through, and a plurality of annular extrusion rubber rings are arranged in the through hole, are sleeved on the cable (1) to be connected and are respectively in compression contact with the surface of the cable (1) to be connected and the inner surface of the through hole of the cable clamping block (8); the cable clamping block (8) is conical, the conical bottom end surface of the cable clamping block (8) faces the cable joint waterproof sleeve (3), the extrusion limiting cylinder (10) is a conical cylinder, and a plurality of strip-shaped grooves (12) which are uniformly distributed are formed in the conical side surface of the extrusion limiting cylinder (10); after the extrusion limiting cylinder (10) is inserted into the accommodating cavity (11), the strip-shaped groove (12) on the extrusion limiting cylinder (10) contracts and pushes the cable clamping block (8) to move towards the cable joint waterproof sleeve (3).

By arranging the cable clamping blocks (8), the arc-shaped buffer sections II (1-2) are prevented from being straightened. When the sleeve blocking head (7) is arranged at the end part of the outer sleeve (4), the extrusion limiting cylinder (10) accommodates the cavity (11) and enables the extrusion limiting cylinder (10) to shrink, and the cable clamping block (8) is pushed to the cable joint waterproof sleeve (3) in the shrinkage process of the extrusion limiting cylinder (10) so that the arc-shaped buffer section II (1-2) is formed or the cable axial length of the arc-shaped buffer section II (1-2) is increased.

A groove (71) is formed in the sleeve blocking head (7), a fixed rubber ring (73) is arranged in the groove (71), and the fixed rubber ring (73) is sleeved on the cable (1) to be wired; a threaded plug (72) is arranged in the groove (71), the threaded plug (72) is sleeved on the cable (1) to be connected and is in threaded connection with the groove (71), and the threaded plug (72) presses the fixed rubber ring (73) and then the fixed rubber ring (73) is tightly pressed and fixed with the cable (1) to be connected.

The screw plug (72) extrudes the fixed rubber ring (73) through reasoning in the threaded connection process, so that the fixed rubber ring (73) generates elastic deformation, the inner diameter of the fixed rubber ring (73) is reduced after the elastic deformation and is tightly pressed with the surface of the cable (1) to be connected, and the fixing firmness of the cable (1) to be connected and the sleeve plug (7) is improved.

It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that various changes, modifications, additions and substitutions can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a photovoltaic cable connector, includes cable connector waterproof sleeve (3), cable primary and secondary joint (2) and two cable (1) of waiting to be wired, and the terminal of two cable (1) of waiting to be wired is connected through cable primary and secondary joint (2), and cable connector waterproof sleeve (3) cup joints on cable primary and secondary joint (2) and is connected with cable primary and secondary joint (2) fixed; the method is characterized in that: the cable connector waterproof sleeve (3) is sleeved in the outer sleeve (4), two elastic clamping discs (5) are further arranged in the outer sleeve (4), the elastic clamping discs (5) are fixed with the outer sleeve (4), the cable connector waterproof sleeve (3) is arranged between the two elastic clamping discs (5), two cables (1) to be connected penetrate through the two elastic clamping discs (5) respectively, and the elastic clamping discs (5) are in compression contact with the cables (1) to be connected; an arc buffer section (1-1) is arranged on a cable (1) to be wired between the cable primary-secondary connector (2) and the elastic clamping disc (5), two end cover plates (9) are respectively arranged at openings at two ends of the outer sleeve (4), sleeve blocking heads (7) are arranged at the end cover plates (9), and the sleeve blocking heads (7) are fixed with the end cover plates (9) through bolts and block the end openings of the outer sleeve (4); the two cables (1) to be wired respectively pass through the sleeve blocking head (7) and are fixed with the sleeve blocking head (7); an arc-shaped buffer section II (1-2) is arranged on the cable (1) to be wired between the sleeve blocking head (7) and the elastic clamping disc (5); the arc-shaped buffer sections (1-1) and the arc-shaped buffer sections (1-2) are formed after the cable (1) to be connected is bent, and the cable (1) to be connected passes through the cable clamping block (8) and is tightly and fixedly connected with the cable clamping block (8); the cable clamping block (8) is fixed relative to the sleeve blocking head (7), an extrusion limiting cylinder (10) is arranged in the middle of the end cover plate (9), and the cable clamping block (8) is inserted into the extrusion limiting cylinder (10) and is matched with the extrusion limiting cylinder (10) in shape; the cable clamping block (8) is provided with a through hole for a cable (1) to pass through, and a plurality of annular extrusion rubber rings are arranged in the through hole, are sleeved on the cable (1) to be connected and are respectively in compression contact with the surface of the cable (1) to be connected and the inner surface of the through hole of the cable clamping block (8); the cable clamping block (8) is conical, the conical bottom end surface of the cable clamping block (8) faces the cable joint waterproof sleeve (3), the extrusion limiting cylinder (10) is a conical cylinder, and a plurality of strip-shaped grooves (12) which are uniformly distributed are formed in the conical side surface of the extrusion limiting cylinder (10); after the extrusion limiting cylinder (10) is inserted into the accommodating cavity (11), the strip-shaped groove (12) on the extrusion limiting cylinder (10) contracts and pushes the cable clamping block (8) to move towards the cable joint waterproof sleeve (3).

2. The photovoltaic cable connector of claim 1, wherein: the elastic clamping disc (5) is an elastic sheet made of a hard elastomer, an annular clamping groove is formed in the inner wall of the outer sleeve (4), and the edge of the elastic clamping disc (5) is clamped in the clamping groove in the inner wall of the outer sleeve (4); the middle part of elasticity anchor clamps dish (5) is provided with the protruding section of arc, waits to join wire cable (1) and pass the protruding section of arc middle part and pass through frictional force fixed connection between the two.

3. The photovoltaic cable connector of claim 1, wherein: a plurality of positioning screws (6) are arranged on the outer sleeve (4), the threaded ends of the positioning screws (6) penetrate through the outer wall of the outer sleeve (4), and the end parts of the positioning screws are in threaded connection with the waterproof sleeve (3) of the cable joint; the through hole on the waterproof sleeve (3) of the cable connector for the cable (1) to pass through is tightly pressed and contacted with the outer surface of the cable (1) to be connected and fixedly connected with the cable (1) to be connected.

4. The photovoltaic cable connector of claim 1, wherein: the outer sleeve (4) comprises a middle section cylinder body (41) and end part cylinder bodies (42) positioned at two ends of the middle section cylinder body (41), and the middle section cylinder body (41) and the end part cylinder bodies (42) are in butt joint to form a cylinder; the edge of the elastic wire clamping disc (5) is arranged between the middle section cylinder (41) and the end cylinder (42) and is clamped and fixed by the middle section cylinder (41) and the end cylinder (42).

5. The photovoltaic cable connector of claim 1, wherein: a groove (71) is formed in the sleeve blocking head (7), a fixed rubber ring (73) is arranged in the groove (71), and the fixed rubber ring (73) is sleeved on the cable (1) to be wired; a threaded plug (72) is arranged in the groove (71), the threaded plug (72) is sleeved on the cable (1) to be connected and is in threaded connection with the groove (71), and the threaded plug (72) presses the fixed rubber ring (73) and then the fixed rubber ring (73) is tightly pressed and fixed with the cable (1) to be connected.

6. The photovoltaic cable connector of claim 4, wherein: the waterproof sleeve (3) and the middle barrel (41) of the cable connector are filled with cable connector pouring sealant; the middle section cylinder body (41) is connected with a water filling ball.