CN215770643U

CN215770643U - Busbar connecting piece

Info

Publication number: CN215770643U
Application number: CN202121410867.6U
Authority: CN
Inventors: 王志勇; 李海腾
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Current assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-02-08
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a busbar connecting piece which comprises a conductive busbar, a fireproof composite belt and a first heat-shrinkable layer. The conductive busbar comprises a busbar body and connecting ends arranged at two ends of the busbar body and used for conductive connection, the fireproof composite strip is coated outside the busbar body, the first heat-shrinkable layer is coated outside the fireproof composite strip, and the first heat-shrinkable layer is formed by heating and shrinking at least one layer of heat-shrinkable sleeve. According to the utility model, the fireproof composite belt is coated outside the busbar body, so that the flame-retardant and fireproof effects can be achieved, the first heat-shrinkable layer is coated outside the fireproof composite belt, the insulating, sealing and waterproof effects can be achieved, and meanwhile, the fireproof composite belt can be effectively fixed, so that the service life of the busbar connecting piece is ensured.

Description

Busbar connecting piece

Technical Field

The utility model relates to the technical field of electric connectors, in particular to a busbar connector.

Background

In the power supply connection system of the existing electric automobile, a busbar is generally adopted for power transmission connection, and the busbar structure generally comprises a conductor and an insulating layer coated outside the conductor so as to realize an insulating and sealing effect. At present, the safety, particularly the fire-resistant safety, of the electric automobile becomes more and more important, the fire-resistant performance of an insulating layer in the existing busbar structure is poor, and if the fire is caused by overload or accidents, the electric breakdown between cables or between the cables and the electric automobile is easy to cause serious damage. Therefore, it is necessary to provide a busbar connection member to further improve the fire safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a busbar connecting piece to improve the insulating property and the fire resistance.

In order to achieve the above object, the present invention provides a busbar connection member, including:

the conductive busbar comprises a busbar body and connecting ends which are arranged at two ends of the busbar body and are used for conductive connection;

the fireproof composite belt is coated outside the busbar body;

the first heat-shrinkable layer is coated outside the fireproof composite belt and is formed by heating and shrinking at least one layer of heat-shrinkable sleeve.

In a preferred embodiment, the fire resistant composite tape is a ceramicized silicone rubber composite tape or a ceramicized polyolefin composite tape.

In a preferred embodiment, the conductive busbar is made of a copper material, an aluminum material or an aluminum alloy material.

In a preferred embodiment, the conductive busbar is formed by overlapping a single layer of metal foil or a plurality of layers of metal foil layers, and the cross section of the busbar body is rectangular.

In a preferred embodiment, the conductive busbar is formed by twisting a plurality of conductive wire cores, and the cross section of the busbar body is circular.

In a preferred embodiment, the conductive busbar is cylindrical or hollow cylindrical, and the cross section of the busbar body is circular or annular.

In a preferred embodiment, the fire-resistant composite tape is wrapped in a wrapping manner or a longitudinal wrapping manner.

In a preferred embodiment, the heat shrink tubing is single wall heat shrink tubing.

In a preferred embodiment, the busbar connector further comprises a second heat-shrinkable layer; the second heat-shrinkable layer is arranged between the busbar body and the fireproof composite belt and is formed by heating and shrinking at least one layer of heat-shrinkable sleeve.

In a preferred embodiment, the connecting end is provided with at least one through hole.

The utility model has the beneficial effects that: through arranging the outer cladding fire-resistant composite band of body at the mother, can play fire-retardant fire-resistant effect, again at the outer cladding first pyrocondensation layer of fire-resistant composite band to play insulating, sealed, waterproof effect, can effectively fix fire-resistant composite band simultaneously, in order to guarantee the life of arranging the connecting piece.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a three-dimensional structure diagram of a busbar connection piece according to embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view of the busbar connection shown in FIG. 1;

fig. 3 is a cross-sectional view of a busbar connection member according to embodiment 2 of the present invention;

fig. 4 is a cross-sectional view of a busbar connection unit according to embodiment 3 of the present invention;

fig. 5 is a cross-sectional view of a busbar connection unit according to embodiment 4 of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Conductive busbar	20	Refractory composite belt
11	Busbar body	30	A first heat-shrinkable layer
				12	Connecting end	40	Second heat-shrinkable layer
121	Through hole

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

Referring to fig. 1 and 2, an embodiment of the utility model provides a busbar connector, including a conductive busbar 10, a refractory composite tape 20, and a first heat-shrinkable layer 30. Specifically, the conductive busbar 10 includes a busbar body 11 and a connecting end 12 disposed at two ends of the busbar body 11 and used for conductive connection. The fire-resistant composite belt 20 is wrapped outside the busbar body 11. The first heat-shrinkable layer 30 is coated outside the refractory composite belt 20, and the first heat-shrinkable layer 30 is formed by heating and shrinking at least one layer of heat-shrinkable sleeve.

In this embodiment, the fire-resistant composite band 20 is wrapped on the outer portion of the busbar body 11, so that the fire-resistant and fire-resistant effects can be achieved, and the first thermal shrinkage layer 30 is wrapped on the outer portion of the fire-resistant composite band 20 due to poor viscosity of the fire-resistant composite band, so that the effects of insulation, sealing and water resistance can be achieved, the fire-resistant composite band 20 can be fixed, and the service life is longer.

Preferably, the heat-shrinkable sleeve is a single-wall heat-shrinkable tube, has the characteristic of high-rate shrinkage, and is wide in applicable size range, simple in structure and low in cost. In other embodiments, the heat-shrinkable sleeve may also be a heat-shrinkable double-walled tube, and the inner layer of the heat-shrinkable sleeve is a hot-melt adhesive layer, so that the hot-melt adhesive layer is attached to the refractory composite tape 20, and the heat-shrinkable sleeve has stronger sealing performance and is more firmly fixed.

In this embodiment, the fire-resistant composite tape 20 is a ceramic silicone rubber composite tape. The silicon rubber ceramic fireproof composite belt is formed by rolling and compounding ceramic modified fireproof silicon rubber and high-temperature-resistant glass fiber cloth serving as base materials, can be rapidly sintered into a hard ceramic shell at high temperature, and the shell is harder when the temperature is higher. In a fire disaster, the hard ceramic shell can play a good role in flame retardance, fire resistance, fire prevention and fire isolation, and the safety of a circuit is ensured. In other embodiments, the fire resistant composite tape 20 may also be a ceramized polyolefin composite tape.

The conductive busbar 10 is made of copper materials, aluminum materials or aluminum alloy materials, and can be selected according to actual needs.

In this embodiment, the conductive busbar 10 is formed by laminating a single-layer metal foil or a plurality of layers of metal foils, and the cross section of the busbar body 11 is rectangular, so that the capacitance can be optimized by changing the lamination. Specifically, the conductive busbar 10 may be formed by laminating copper foil, aluminum foil or aluminum alloy foil, and in order to facilitate connection, the connecting end 12 of the conductive busbar 10 is provided with at least one through hole 121. Preferably, the conductive busbar 10 is of a flexible structure, so that the whole structure can be easily bent in the thickness direction, and the wiring is convenient to install. In other embodiments, the conductive busbar 10 may also be formed by twisting a plurality of conductive wire cores, that is, the conductive busbar 10 may be a stranded wire structure.

In this embodiment, the fire-resistant composite tape 20 is wrapped by a wrapping method, and the fire-resistant composite tape 20 is spirally wound on the outer wall of the busbar body 11. In other embodiments, the fire-resistant composite strip 20 is coated in a longitudinal wrapping manner, and it is understood that the fire-resistant composite strip 20 has an overlapping portion longitudinally disposed along the busbar body 11 after being coated.

According to the busbar connecting piece provided by the utility model, the fireproof composite strip 20 is coated outside the busbar body 11, so that the flame-retardant and fireproof effects can be achieved, the first heat-shrinkable layer 30 is coated outside the fireproof composite strip 20, so that the insulating, sealing and waterproof effects can be achieved, and meanwhile, the fireproof composite strip 20 can be effectively fixed, so that the service life of the busbar connecting piece is ensured.

Example 2

Referring to fig. 3, in embodiment 2, the conductive busbar 10 may be a stranded wire structure, the conductive busbar 10 is formed by twisting a plurality of conductive wire cores, and the cross section of the busbar body 11 is circular, so that the volume can be reduced by a stranded wire manner, the structure is simple, and the transmission capacity is large.

Specifically, the conductive busbar 10 may be an aluminum conductor steel reinforced, an aluminum conductor aluminum stranded or an aluminum conductor aluminum stranded, and may be specifically selected as needed.

Example 3

Referring to fig. 4, in embodiment 3, the conductive busbar 10 is a hollow cylinder, and the cross section of the busbar body 11 is a circular ring shape, so that the weight of the hollow cylindrical conductor is lighter and the conductive efficiency of the conductor is higher due to the skin effect of the cylindrical conductor. Of course, in other embodiments, the conductive busbar 10 may also be cylindrical, and the cross section of the busbar body 11 is circular, for example, the conductive busbar 10 is a solid conductor structure.

Example 4

Referring to fig. 5, in embodiment 4, the busbar connector further includes a second heat-shrinkable layer 40. The second heat-shrinkable layer 40 is arranged between the busbar body 11 and the fire-resistant composite belt 20, and the second heat-shrinkable layer 40 is formed by heating and shrinking at least one layer of heat-shrinkable sleeve.

In this embodiment, through increase second pyrocondensation layer 40 between female body 11 and the fire-resistant composite band 20 of arranging, it is more convenient that fire-resistant composite band 20 cladding is on second pyrocondensation layer 40, and fire-resistant composite band 20 has the guard action to second pyrocondensation layer 40, and when high temperature or on fire, even be located first pyrocondensation layer 30 of skin impaired, the second pyrocondensation layer 40 that is located the inlayer can be protected to the fire-resistant composite band 20 of sclerosis crust, has strengthened insulating seal strength.

The utility model is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the utility model is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A female connecting piece that arranges, its characterized in that arranges the connecting piece and includes:

the fireproof composite belt is coated outside the busbar body;

2. The busbar connection according to claim 1, wherein the fire-resistant composite tape is a ceramized silicone rubber composite tape or a ceramized polyolefin composite tape.

3. The busbar connection element according to claim 1, wherein the conductive busbar is made of copper, aluminum or aluminum alloy.

4. The busbar connection member according to claim 1, wherein the conductive busbar is formed by laminating a single metal foil layer or a plurality of metal foil layers, and the busbar body has a rectangular cross section.

5. The busbar connection member according to claim 1, wherein the conductive busbar is formed by twisting a plurality of conductive wire cores, and the cross section of the busbar body is circular.

6. The busbar connection member according to claim 1, wherein the conductive busbar is cylindrical or hollow cylindrical, and the busbar body has a circular or circular ring-shaped cross section.

7. The busbar connection member according to claim 1, wherein the fire-resistant composite tape is wrapped in a wrapping manner or a longitudinal wrapping manner.

8. The busbar connection according to claim 1, wherein the heat shrink tubing is a single wall heat shrink tubing.

9. The busbar connection according to claim 1, further comprising a second heat shrink layer; the second heat-shrinkable layer is arranged between the busbar body and the fireproof composite belt and is formed by heating and shrinking at least one layer of heat-shrinkable sleeve.

10. The busbar connection according to claim 1, wherein the connecting end is provided with at least one through hole.