CN220106928U - Cable connector - Google Patents

Abstract

The present disclosure relates to connectors, and particularly to a cable connector. The cable connector comprises a copper-aluminum connecting terminal and a sheath, wherein one end of the copper-aluminum connecting terminal is an aluminum end, the aluminum end is used for being electrically connected with an aluminum cable, the other end of the copper-aluminum connecting terminal is a copper end, the copper end is used for being electrically connected with the copper cable, the diameter of the aluminum end is larger than that of the copper end, the copper-aluminum connecting terminal is arranged inside the sheath in a penetrating mode, a first penetrating hole, a limiting structure and a second penetrating hole which are sequentially communicated are formed in the sheath in a penetrating mode, the copper end can penetrate through the limiting structure to stretch into the first penetrating hole or the second penetrating hole, and the aluminum end cannot penetrate through the limiting structure to stretch into the first penetrating hole or the second penetrating hole. The design of this sheath makes copper aluminium connecting terminal all can penetrate at the both ends of sheath, and has played spacing effect to the removal of copper aluminium connecting terminal in the sheath, has guaranteed the sealed protection effect of sheath to copper aluminium connecting terminal and cable.

Description

Cable connector

Technical Field

The present disclosure relates to connectors, and particularly to a cable connector.

Background

Along with continuous excavation of the cost reduction and efficiency enhancement potential of the photovoltaic power station, the application of the all-aluminum cable of the photovoltaic power station becomes reality gradually. In the photovoltaic power station, because the inside connection copper bars of photovoltaic power generation equipment are all copper structures, the cable connector is needed to be used for realizing the electric connection between the copper cable and the aluminum cable when the photovoltaic power generation equipment is electrically connected with other external components.

Existing cable connectors generally include copper aluminum connection terminals and a jacket, wherein an aluminum end of the copper aluminum connection terminal is used for being electrically connected with an aluminum cable, a copper end of the copper aluminum connection terminal is used for being electrically connected with the copper cable, and the copper aluminum connection terminal is arranged inside the jacket in a penetrating manner so as to improve sealing protection of the copper aluminum connection terminal. In the prior art, copper aluminum connecting terminals can only penetrate the inside of sheath from the one end of sheath for copper aluminum connecting terminals need distinguish the direction of wearing in the in-process of penetrating the sheath, make the operation complicated. In addition, after copper aluminum connecting terminal penetrates in the sheath, copper aluminum connecting terminal can freely slide in the sheath inside, leads to copper aluminum connecting terminal to slide to the tip of sheath easily to reduce the sealed protection effect of sheath to copper aluminum connecting terminal, lead to external steam to cause corruption to copper aluminum connecting terminal and cable.

Accordingly, there is a need for a cable connector that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a cable connector, so that copper-aluminum connecting terminals can penetrate through two ends of a sheath, and the sealing protection effect of the sheath on the copper-aluminum connecting terminals and a cable can be ensured.

To achieve the purpose, the utility model adopts the following technical scheme:

a cable connector, comprising:

the copper-aluminum connecting terminal is provided with an aluminum end, wherein the aluminum end is used for being electrically connected with an aluminum cable, the other end of the copper-aluminum connecting terminal is provided with a copper end, the copper end is used for being electrically connected with a copper cable, and the diameter of the aluminum end is larger than that of the copper end; and

the sheath, copper aluminium connecting terminal wears to establish inside the sheath, the inside of sheath is provided with first wearing of intercommunication in proper order and establishes hole, limit structure and second wearing and establishing the hole, copper end can pass limit structure stretches into first wearing is established the hole or in the hole is worn to the second, and aluminum end can not pass limit structure stretches into first wearing is established the hole or the hole is worn to the second.

As the preferred scheme, limit structure includes spacing hole, spacing hole with first wears to establish the hole with the hole is worn to establish to the second, the diameter in spacing hole is greater than the diameter of copper end and is less than the diameter of aluminium end.

Preferably, the limiting hole and the first penetrating hole are in chamfer transition, and the limiting hole and the second penetrating hole are also in chamfer transition.

Preferably, the limit structure is arranged in the middle of the sheath.

Preferably, the diameter of the first through hole is the same as the diameter of the second through hole.

As the preferable scheme, limit structure includes spacing hole and spacing ring, the external diameter of spacing ring is less than the diameter of spacing hole, the internal bore diameter of spacing ring is greater than copper end diameter and is less than aluminium end diameter.

Preferably, the cable connector further includes:

waterproof nut, the tip threaded connection of sheath has waterproof nut, and copper cable with aluminum cable all can pass waterproof nut stretches into in the sheath.

Preferably, the cable connector further includes:

the sealing ring is clamped between the waterproof nut and the aluminum cable, and the sealing ring is also clamped between the waterproof nut and the copper cable.

Preferably, a plurality of clasping teeth are arranged at intervals along the circumferential direction of the end part of the sheath, and the clasping teeth can be tightened on the outer circumferential wall of the penetrated copper cable or aluminum cable.

Preferably, the copper end and the aluminum end are in transition through a chamfer.

The utility model has the beneficial effects that:

the cable connector provided by the utility model comprises a copper-aluminum connecting terminal and a sheath, wherein one end of the copper-aluminum connecting terminal is an aluminum end, the aluminum end is used for being electrically connected with an aluminum cable, the other end of the copper-aluminum connecting terminal is a copper end, the copper end is used for being electrically connected with a copper cable, the diameter of the aluminum end is larger than that of the copper end, the copper-aluminum connecting terminal is arranged in the sheath in a penetrating way, a first penetrating hole, a limiting structure and a second penetrating hole which are sequentially communicated are formed in the sheath in a penetrating way, the copper end can penetrate through the limiting structure to extend into the first penetrating hole or the second penetrating hole, and the aluminum end cannot penetrate through the limiting structure to extend into the first penetrating hole or the second penetrating hole. The design of this sheath makes copper aluminium connecting terminal all can penetrate at the both ends of sheath, need not to distinguish copper aluminium connecting terminal's direction of wearing to establish in the sheath for the simple operation. In addition, limit structure's design has avoided copper aluminium connecting terminal at the inside excessive removal towards copper cable of sheath, has played spacing effect to the removal of copper aluminium connecting terminal in the sheath to avoided copper aluminium connecting terminal to remove to the tip of sheath, guaranteed the sealed protection effect of sheath to copper aluminium connecting terminal and cable.

Drawings

FIG. 1 is a cross-sectional view of a cable connector according to a first embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a sheath provided in accordance with an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a cable connector according to a second embodiment of the present utility model.

In the figure:

100. a cable connector; 200. an aluminum cable; 300. copper wire cable;

1. copper aluminum connection terminals; 11. an aluminum end; 12. a copper end; 2. a sheath; 21. a first through hole; 22. a limiting hole; 23. a second through hole; 24. a limit protrusion; 25. a limiting ring; 26. and (5) tightly holding the teeth.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

As shown in fig. 1, the present embodiment provides a cable connector 100, and the cable connector 100 is mainly used for realizing electrical connection between an aluminum cable 200 and a copper cable 300. Specifically, the cable connector 100 includes a copper-aluminum connection terminal 1 and a sheath 2, wherein one end of the copper-aluminum connection terminal 1 is an aluminum end 11, the aluminum end 11 is used for being electrically connected with an aluminum cable 200, the other end of the copper-aluminum connection terminal 1 is a copper end 12, the copper end 12 is used for being electrically connected with a copper cable 300, and the copper-aluminum connection terminal 1 is arranged inside the sheath 2 in a penetrating manner, so that sealing protection of the copper-aluminum connection terminal 1 and the cable is improved. The aluminum terminal 11 and the aluminum cable 200 are electrically connected by crimping, and the copper terminal 12 and the copper cable 300 are electrically connected by crimping. Further, since the copper cable 300 and the aluminum cable 200 transmit energy differently, the diameter of the aluminum cable 200 is larger than that of the copper cable 300 in the same energy transmission case, and correspondingly, in the copper aluminum connection terminal 1, the diameter of the aluminum end 11 is larger than that of the copper end 12.

In the prior art, the copper-aluminum connecting terminal 1 can only penetrate into the inside of the sheath 2 from one end of the sheath 2, so that the copper-aluminum connecting terminal 1 needs to distinguish the penetrating direction in the process of penetrating into the sheath 2, and the operation is complex. In addition, after copper aluminum connecting terminal 1 penetrates in sheath 2, copper aluminum connecting terminal 1 can freely slide in sheath 2 inside, leads to copper aluminum connecting terminal 1 to slide to the tip of sheath 2 easily to reduce the sealed protection effect of sheath 2 to copper aluminum connecting terminal 1, lead to external steam to cause the corruption to copper aluminum connecting terminal 1 and cable.

In order to solve the above-mentioned problems, as shown in fig. 1 and 2, the inside of the sheath 2 in the cable connector 100 provided by the present embodiment is provided with a first through hole 21, a limiting structure and a second through hole 23 which are sequentially communicated, the copper end 12 can penetrate through the limiting structure to extend into the first through hole 21 or the second through hole 23, and the aluminum end 11 cannot penetrate through the limiting structure to extend into the first through hole 21 or the second through hole 23. The design of this sheath 2 makes copper aluminium connecting terminal 1 both can penetrate inside sheath 2 from the one end of first hole 21 of wearing, and copper aluminium connecting terminal 1 also can penetrate inside sheath 2 from the one end of second hole 23 of wearing, need not to distinguish copper aluminium connecting terminal 1's direction of wearing in sheath 2 for easy operation is convenient. In addition, limit structure's design for copper aluminum connecting terminal 1 penetrates inside sheath 2, only copper end 12 can pass limit structure, and aluminum end 11 can't pass limit structure, thereby avoided copper aluminum connecting terminal 1 at inside towards copper cable 300 excessive movement of sheath 2, the spacing effect has been played to the removal of copper aluminum connecting terminal 1 in sheath 2, avoided copper aluminum connecting terminal 1 to remove to the tip of sheath 2, can be with copper aluminum connecting terminal 1 spacing in the inside of sheath 2, guaranteed the sealed protection effect of sheath 2 to copper aluminum connecting terminal 1 and cable.

In this embodiment, as shown in fig. 1 and 2, the limiting structure includes a limiting hole 22, the limiting hole 22 is communicated with both the first penetrating hole 21 and the second penetrating hole 23, and the diameter of the limiting hole 22 is larger than the diameter of the copper end 12 and smaller than the diameter of the aluminum end 11, so that only the copper end 12 can pass through the limiting hole 22, but the aluminum end 11 cannot pass through the limiting hole 22. By designing the limit structure into the form of the limit hole 22, the structure of the sheath 2 is simple, and the sheath 2 is convenient to process and produce.

Specifically, as shown in fig. 1, in the present embodiment, the copper-aluminum connection terminal 1 penetrates into the inside of the sheath 2 from one end of the first penetration hole 21 such that the copper end 12 sequentially penetrates into the first penetration hole 21 and the limit hole 22 into the second penetration hole 23, and the copper end 12 is electrically connected with the penetrated copper wire 300 in the second penetration hole 23, since the diameter of the aluminum end 11 is larger than the diameter of the limit hole 22, the aluminum end 11 cannot penetrate into the limit hole 22 such that the aluminum end 11 is electrically connected with the penetrated aluminum wire 200 in the first penetration hole 21.

In other embodiments, the copper-aluminum connection terminal 1 may also penetrate into the sheath 2 from one end of the second through hole 23, such that the copper end 12 sequentially penetrates through the second through hole 23 and the limiting hole 22 to extend into the first through hole 21, and the copper end 12 is electrically connected with the penetrated copper cable 300 in the first through hole 21, and since the diameter of the aluminum end 11 is larger than the diameter of the limiting hole 22, the aluminum end 11 cannot penetrate through the limiting hole 22, such that the aluminum end 11 is electrically connected with the penetrated aluminum cable 200 in the second through hole 23.

Preferably, in the present embodiment, the inner wall of the sheath 2 is provided with a limit projection 24, and the limit projection 24 is an annular projection, so that an annular projection forming hole is a limit hole 22. It should be noted that, in other embodiments, the limiting protrusion 24 and the inner wall of the sheath 2 together form the limiting hole 22.

In the present embodiment, as shown in fig. 1 and 2, the transition between the limiting hole 22 and the first through hole 21 is by chamfering, and the transition between the limiting hole 22 and the second through hole 23 is also by chamfering, so that the copper terminal 12 can pass through the limiting hole 22 conveniently.

Further, in the present embodiment, as shown in fig. 1, the copper end 12 and the aluminum end 11 are in a chamfer transition, so that the copper-aluminum connection terminal 1 can more conveniently penetrate into a required position inside the sheath 2.

In this embodiment, the diameter of the first through hole 21 is the same as the diameter of the second through hole 23, so that the sheath 2 is more convenient to process, flexibility of the copper-aluminum connection terminal 1 in the penetrating direction of the sheath 2 is ensured, and penetrating operations at two ends of the sheath 2 are also simple.

Preferably, in this embodiment, the limit structure is disposed at the right middle position of the sheath 2, so as to ensure that the copper-aluminum connection terminal 1 is limited at the middle positions of two ends of the sheath 2, and improve the sealing protection effect of the sheath 2 on the copper-aluminum connection terminal 1 and the cable.

In addition, the cable connector 100 further includes a waterproof nut (not shown in the drawings), to which the end of the sheath 2 is screwed, and through which the copper cable 300 and the aluminum cable 200 can be inserted into the sheath 2. The waterproof screw cap is connected with the end part of the sheath 2 in a threaded manner, so that the sealing and protecting effects on the copper-aluminum connecting terminal 1 and the cable are further improved.

Preferably, in this embodiment, the cable connector 100 further includes a sealing ring (not shown in the figure), a sealing ring is sandwiched between the waterproof nut and the aluminum cable 200, and a sealing ring is also sandwiched between the waterproof nut and the copper cable 300, and the sealing ring is provided, so that after the waterproof nut is screwed on the sheath 2, the clamping effect of the waterproof nut on the cable is improved, and the sealing protection effect on the copper-aluminum connection terminal 1 and the cable is further improved.

Preferably, in the present embodiment, as shown in fig. 1 and 2, the end of the sheath 2 is provided with a plurality of clasping teeth 26 at intervals along the circumferential direction thereof, and when a waterproof nut is screwed on the end of the sheath 2, the waterproof nut can tighten the clasping teeth 26 on the outer circumferential wall of the penetrated copper cable 300 or aluminum cable 200, thereby securing the sealing protection effect on the copper-aluminum connection terminal 1 and the cable.

Example two

The cable connector 100 provided in this embodiment is substantially the same as the first embodiment, and the cable connector 100 provided in this embodiment is different from the first embodiment in that:

as shown in fig. 3, the limiting structure provided in this embodiment includes a limiting hole 22 and a limiting ring 25, where the outer diameter of the limiting ring 25 is smaller than the diameter of the limiting hole 22, so that the limiting ring 25 cannot pass through the limiting hole 22, and the inner diameter of the limiting ring 25 is larger than the diameter of the copper end 12 and smaller than the diameter of the aluminum end 11, so as to ensure that only the copper end 12 can pass through the limiting ring 25, and the aluminum end 11 cannot pass through the limiting ring 25. The structural design of the limiting structure is more ingenious, and when the limiting size of the limiting structure needs to be adjusted, the limiting rings 25 with different inner hole models can be directly replaced.

It should be noted that, in this embodiment, the inner wall of the sheath 2 is provided with a limiting protrusion 24, and the limiting protrusion 24 is an annular protrusion, so that the annular protrusion forming hole is a limiting hole 22. It should be noted that, in other embodiments, the limiting protrusion 24 and the inner wall of the sheath 2 together form the limiting hole 22.

In this embodiment, when the cable connector 100 is required to electrically connect the copper cable 300 and the aluminum cable 200, the copper cable 300 is first threaded from one end of the sheath 2, the stop collar 25 is sleeved on the copper cable 300 outside the other end of the sheath 2, the copper cable 300 is electrically connected with the copper end 12, the aluminum cable 200 is electrically connected with the aluminum end 11, and then the copper cable 300 is pulled in the opposite direction of the threading of the copper cable 300 to pull the stop collar 25 and the copper-aluminum connection terminal 1 to the position required inside the sheath 2.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A cable connector, comprising:

a copper-aluminum connection terminal (1), wherein one end of the copper-aluminum connection terminal (1) is an aluminum end (11), the aluminum end (11) is used for being electrically connected with an aluminum cable (200), the other end of the copper-aluminum connection terminal (1) is a copper end (12), the copper end (12) is used for being electrically connected with a copper cable (300), and the diameter of the aluminum end (11) is larger than that of the copper end (12); and

sheath (2), copper aluminium connecting terminal (1) wears to establish inside sheath (2), the inside of sheath (2) is provided with first wearing hole (21), limit structure and the second of communicating in proper order wears to establish hole (23), copper end (12) can pass limit structure stretches into first wearing hole (21) or in second wearing hole (23), and aluminium end (11) can not pass limit structure stretches into first wearing hole (21) or second wearing hole (23).

2. The cable connector according to claim 1, wherein the limiting structure comprises a limiting hole (22), the limiting hole (22) is communicated with both the first through hole (21) and the second through hole (23), and the diameter of the limiting hole (22) is larger than the diameter of the copper end (12) and smaller than the diameter of the aluminum end (11).

3. The cable connector according to claim 2, characterized in that the limiting hole (22) and the first through hole (21) are transitioned by a chamfer and the limiting hole (22) and the second through hole (23) are also transitioned by a chamfer.

4. Cable connector according to claim 1, wherein the limit structure is arranged in the middle of the sheath (2).

5. The cable connector according to claim 1, wherein the diameter of the first through hole (21) is the same as the diameter of the second through hole (23).

6. The cable connector according to claim 1, wherein the limiting structure comprises a limiting hole (22) and a limiting ring (25), the limiting ring (25) having an outer diameter smaller than the diameter of the limiting hole (22), the limiting ring (25) having an inner diameter larger than the copper end (12) diameter and smaller than the aluminum end (11) diameter.

7. The cable connector according to any one of claims 1 to 6, further comprising:

waterproof nut, the tip threaded connection of sheath (2) has waterproof nut, and copper cable (300) as well as aluminium cable (200) all can pass waterproof nut stretches into in sheath (2).

8. The cable connector of claim 7, further comprising:

the sealing ring is clamped between the waterproof nut and the aluminum cable (200), and the sealing ring is also clamped between the waterproof nut and the copper cable (300).

9. The cable connector according to any one of claims 1 to 6, wherein the end of the sheath (2) is provided with a plurality of clasping teeth (26) at intervals along the circumferential direction thereof, the clasping teeth (26) being tightenable on the outer circumferential wall of the penetrated copper cable (300) or aluminum cable (200).

10. Cable connector according to any one of claims 1 to 6, wherein the copper end (12) and the aluminum end (11) are transitioned by a chamfer.