CN210692138U

CN210692138U - Bendable shaping cable

Info

Publication number: CN210692138U
Application number: CN201922044257.8U
Authority: CN
Inventors: 秦川; 彭振; 张利君
Original assignee: Jiangsu Eleco Electronic Technology Co ltd
Current assignee: Jiangsu Eleco Electronic Technology Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-06-05
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a bendable shaping cable, which comprises a conductor, wherein the conductor is externally extruded with a 125-degree or 150-degree cross-linked polyolefin insulating layer; the cross-linked polyolefin insulating layer is externally wrapped with a plurality of pp foaming belts with the thickness not less than 0.2mm, the pp foaming belts are sleeved with modified pp protective sleeves with the thickness not less than 1.5mm, two ends of each protective sleeve are of flat structures, and the middle part of each protective sleeve is of a telescopic corrugated structure; the smooth structure surface of one end of this protecting pipe is equipped with the cusp buckle, and the smooth structure surface of the other end is equipped with buckle assorted and the outside dentate card strip that extends. The product increases the shaping function of the product under the condition of not increasing any accessory facilities, enhances the stability of the cable, is easier to install and use the cable, and improves the processing and using efficiency of the whole wire harness; the cable has a long-term maximum working temperature of 150 ℃, and has various excellent performances of flame retardance, high and low temperature resistance, corrosion resistance, acid and alkali resistance, chemical substance resistance, oil resistance and the like.

Description

Bendable shaping cable

Technical Field

The utility model relates to a wire and cable field, concretely relates to flexible design cable.

Background

With the development of the automobile industry, automobile exhaust emission becomes one of the main environmental pollution sources. In recent years, China has been developing new energy industry, and for new energy automobiles, high-voltage lines in automobiles serve as energy transmission power lines, and the high-voltage lines are similar to meridians in human bodies and play an important role. Ordinary new forms of energy power line is higher because of the cable pliability, and it is more difficult to bend when leading to the installation, need just can install through using great strength or dedicated tool to difficult stereotyping.

In order to solve the problem, the method plays a role in starting and stopping the development of the pure new energy automobile. I have especially developed a flexible design cable, be applicable to new forms of energy hybrid vehicle and electric automobile. The product has various excellent performances of flame retardance, high and low temperature resistance, high flexibility, corrosion resistance, acid and alkali resistance, chemical substance resistance, oil resistance and the like; the maximum long-term working temperature of the cable can reach 150 ℃.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the bendable sizing cable is provided, the sizing function of the product is increased under the condition that any accessory facility is not added, the stability of the cable is enhanced, the cable is easier to install and use, and the processing and using efficiency of the whole wire harness is improved; the cable has a long-term maximum working temperature of 150 ℃, and has various excellent performances of flame retardance, high and low temperature resistance, corrosion resistance, acid and alkali resistance, chemical substance resistance, oil resistance and the like.

In order to achieve the above purpose, the present invention provides a bendable shaping cable, which comprises a conductor, wherein the conductor is externally extruded with a 125 ° or 150 ° crosslinked polyolefin insulation layer; the cross-linked polyolefin insulating layer is externally wrapped with a plurality of pp foaming belts with the thickness not less than 0.2mm, the pp foaming belts are sleeved with modified pp protective sleeves with the thickness not less than 1.5mm, two ends of each protective sleeve are of flat structures, and the middle part of each protective sleeve is of a telescopic corrugated structure; the smooth structure surface of one end of this protecting pipe is equipped with the cusp buckle, and the smooth structure surface of the other end is equipped with buckle assorted and the outside dentate card strip that extends.

Preferably, the conductor is formed by stranding hard copper wires or hard aluminum alloy wires.

Preferably, the thickness of the 125 ° or 150 ° crosslinked polyolefin insulation layer is determined according to the diameter of the conductor.

Preferably, the wrapping layer number of the pp foaming tape is determined according to the outer diameter of the cross-linked polyolefin insulating layer, and the overlapping rate of each layer is not less than 30%.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the conductor is made of hard copper wires or hard aluminum alloy wires and is twisted into a round shape, the twisting pitch of the inner layer is not more than 20 times, the twisting pitch of the secondary inner layer is not more than 15 times, the twisting pitch of the outermost layer is not more than 10 times, and the hard conductor is in a bending state when being bent and has little reaction force rebound;

2. the finished product structure is bent as a finished product, the conductor and the insulation can generate reaction force, the protective sleeve adopts a structure with a retractable type, the used product has a bending and shaping effect, when the product is bent, the outer side of the bent part of the telescopic corrugated structure of the protective sleeve can be used as a support after being unfolded, and the inner side can be retracted (the same as the bending and corrugation principle of the suction pipe), so that the bending and shaping can be formed, the generated reaction force can be well solved, and the product has good bending performance; in addition, the external clamping strip and the buckle are fixedly positioned by meshing and locking, so that the bending angle of the cable can reach 30-179 degrees; also has high pressure resistance and long service life;

3. the wrapping band layer adopts a foamed PP film, and when the bag is bent, a space can be left for the bent part at the inner side, so that the bag is favorable for bending and has the shock absorption function;

4. the shaping function of the product is increased under the condition that any accessory facility is not added, the stability of the cable is enhanced, the cable is easier to install and use, and the processing and using efficiency of the whole wire harness is improved; the wide use performance of high-voltage cables in the car is increased, the bending setting performance is improved due to the multi-angle setting of the cable, the high-voltage cable has good stability and bending capability, and the bending and shock absorption performance of the cable is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a modified pp sheathing tube.

Detailed Description

The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

As shown in fig. 1, the utility model provides a flexible sizing cable, including conductor 1, this conductor adopts hard copper wire or duralumin alloy silk multilayer transposition to form, and the transposition is circular, and inlayer transposition pitch is not more than 20 times, and inferior inlayer transposition pitch is not more than 15 times, and outermost layer transposition pitch is not more than 10 times, and hard conductor after the transposition, the conductor can present the bending state during the bending, has little reaction force bounce-back; a 125-degree or 150-degree cross-linked polyolefin insulating layer 2 is extruded outside the conductor 1; a pp foaming belt 3 with the thickness of more than 0.2mm is wrapped outside the cross-linked polyolefin insulating layer, when the cross-linked polyolefin insulating layer is bent, a space can be left for the bending part at the inner side, and the cross-linked polyolefin insulating layer is beneficial to bending and has the shock absorption effect; sleeving a modified pp protective sleeve 4 with the thickness not smaller than 1.5mm on the pp foaming belt, wherein the bending modulus of the modified pp protective sleeve is between 100 and 150mpa, and the elastic modulus value is required to reach 3000 to 4000 mpa; the two ends of the sheath pipe are of flat structures, and the middle part of the sheath pipe is of a telescopic corrugated structure; the surface of the flat structure at one end of the protective sleeve is provided with a buckle 5, and the surface of the flat structure at the other end is provided with a clamping strip 6 which is matched with the buckle and extends outwards; when the finished product is bent, the conductor and the insulation can generate reaction force, the protective sleeve adopts a structure with a retractable type, the used product has a bending and shaping effect, when the finished product is bent, the outer side of the bent part of the telescopic corrugated structure of the protective sleeve can be used for supporting after being unfolded, and the inner side can be retracted (the same as the bending and corrugation principle of the suction pipe), so that the bending and shaping can be formed, the generated reaction force can be well solved, and the finished product has good bending performance; in addition, the external clamping strip and the buckle are fixedly positioned by meshing, locking and buckling (the structure is the same as the binding belt principle), so that the bending angle of the cable can reach 30-179 degrees; also has high pressure resistance and long service life;

the thickness of the 125-degree or 150-degree crosslinked polyolefin insulation layer is determined according to the diameter of the conductor, and the following table is specifically referred to:

serial number	Conductor diameter (mm)	Insulation thickness (mm)
			1	≤10	0.5
2	＜20≤	0.8
			3	＜30≤	1.0
4	≥30.1	1.2

The wrapping layer number of the pp foaming belt is determined according to the outer diameter of the cross-linked polyolefin insulating layer, and the covering rate of each layer is not less than 30 percent, which is shown in the following table:

serial number	Conductor diameter (mm)	Number of layers of wrapping tape
			1	≤10	2
2	＜20≤	4
			3	＜30≤	6
4	≥30.1	8

The cable increases the shaping function of the product under the condition of not increasing any accessory facilities, enhances the stability of the cable, is easier to install and use, and improves the processing and using efficiency of the whole wire harness; the wide use performance of high-voltage cables in the car is increased, the bending setting performance is improved due to the multi-angle setting of the cable, the high-voltage cable has good stability and bending capability, and the bending and shock absorption performance of the cable is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.

Claims

1. A flexible cable comprises a conductor, wherein the conductor is externally extruded with a 125-degree or 150-degree cross-linked polyolefin insulating layer; the method is characterized in that: the cross-linked polyolefin insulating layer is externally wrapped with a plurality of pp foaming belts with the thickness not less than 0.2mm, the pp foaming belts are sleeved with modified pp protective sleeves with the thickness not less than 1.5mm, two ends of each protective sleeve are of flat structures, and the middle part of each protective sleeve is of a telescopic corrugated structure; the smooth structure surface of one end of this protecting pipe is equipped with the cusp buckle, and the smooth structure surface of the other end is equipped with buckle assorted and the outside dentate card strip that extends.

2. The flexible shaped cable according to claim 1, wherein: the conductor is formed by twisting hard copper wires or hard aluminum alloy wires.

3. The flexible shaped cable according to claim 1, wherein: the thickness of the 125 DEG or 150 DEG crosslinked polyolefin insulation layer is determined according to the diameter of the conductor.

4. The flexible shaped cable according to claim 1, wherein: the wrapping layer number of the pp foaming tape is determined according to the outer diameter of the cross-linked polyolefin insulating layer, and the overlapping rate of each layer is not less than 30%.