Composite cable for new energy automobile

Abstract

The invention relates to the technical field of cables, in particular to a composite cable for a new energy automobile, and solves the problems that when an existing cable is applied to the new energy automobile, the surface of the cable is prone to damage in a complex environment, then the driving safety of the new energy automobile is affected, and the cable is inconvenient to bend and arrange at will. Comprising an outer-layer protection assembly and a wear monitoring assembly, and the wear monitoring assembly is installed on the inner side of the outer-layer protection assembly; the outer layer protection assembly comprises a filling layer, a plurality of annular arc grooves are formed in the outer surface of the filling layer, arc mounting rings are mounted on the inner sides of the annular arc grooves, a plurality of annular wires are arranged in the arc mounting rings, and a plurality of positioning clamping rings are mounted on the outer side of the filling layer. By means of sectional bending and fixing, stable arrangement of cables in an automobile can be effectively met, meanwhile, abrasion detection and positioning are conducted on the cables, and the damaged cables can be replaced in time.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and particularly to a composite cable for new energy vehicles. Background Art

[0002] The cables for new energy vehicles are multi-core cables with various specifications and performance characteristics, which are used to meet the complex electrical system requirements of new energy vehicles. These cables may have different specifications and performances according to the design of the vehicle and the requirements of the electrical system. The cables for new energy vehicles need to possess multiple characteristics such as high voltage resistance, high temperature resistance, electromagnetic interference prevention, high flexibility, wear and oil resistance, etc. These characteristics together ensure the reliability and safety of the cables when applied inside new energy vehicles.

[0003] When the existing cables are applied to new energy vehicles, the surface of the cables is easily damaged in the complex environment, which will affect the driving safety of new energy vehicles, and it is not convenient to arrange the cables in any bending manner; therefore, they do not meet the existing requirements, and for this reason, we propose a composite cable for new energy vehicles. Summary of the Invention

[0004] The purpose of the present invention is to provide a composite cable for new energy vehicles, so as to solve the problems mentioned in the above background art that when the existing cables are applied to new energy vehicles, the surface of the cables is easily damaged in the complex environment, which will affect the driving safety of new energy vehicles, and it is not convenient to arrange the cables in any bending manner.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A composite cable for new energy vehicles, including an outer protection component and a wear monitoring component, and the wear monitoring component is installed inside the outer protection component; The outer protection component includes a filling layer, and a plurality of annular arc grooves are provided on the outer surface of the filling layer. An arc-shaped mounting ring is installed inside the annular arc groove, and a plurality of annular wires are provided inside the arc-shaped mounting ring. A plurality of positioning clamping rings are installed outside the filling layer, and a cable connection seat is installed outside one of the positioning clamping rings. A limiting clamping strip is installed at one end of the cable connection seat. A plurality of corrugated support rings are installed inside the filling layer, and elastic filling rings are installed on both sides of each corrugated support ring; The wear monitoring component includes a second metal layer, a first insulating shielding layer is installed outside the second metal layer, a first metal layer is installed outside the first insulating shielding layer, and a spiral braided layer is installed outside the first metal layer.

[0006] Preferably, an inner protection component is installed inside the wear monitoring component, a plurality of battery cell units are installed inside the inner protection component, a central support component is installed between the plurality of battery cell units, the outer protection component further includes a flame retardant layer fixedly connected to the filling layer, the flame retardant layer is installed between the filling layer and a plurality of positioning snap rings, and a plurality of arc-shaped mounting rings are disposed between the flame retardant layer and the filling layer.

[0007] Preferably, the inner protection component includes a heat-conducting filler body, a plurality of insulating pressure rings are installed on the outer side of the heat-conducting filler body, a plurality of sheet-shaped thermistors are installed on the outer side of each insulating pressure ring, and a plurality of elastic partition strips are installed inside the heat-conducting filler body.

[0008] Preferably, the battery cell unit includes a second insulating shielding layer, a plurality of reinforcing ridges are provided on the outer surface of the second insulating shielding layer, an anti-abrasion layer is installed inside the second insulating shielding layer, and a battery cell main body is installed inside the anti-abrasion layer.

[0009] Preferably, the central support component includes a connecting layer, a spiral support strip is provided on the outer surface of the connecting layer, and a central metal strip is installed inside the connecting layer.

[0010] Preferably, the filling layer and the flame retardant layer are adhesively fixed, the arc-shaped mounting ring is disposed between the flame retardant layer and the filling layer, and the filling layer and the annular wire are fixedly connected through the arc-shaped mounting ring.

[0011] Preferably, the positioning snap ring and the flame retardant layer are adhesively fixed, a plurality of positioning heads arranged in a circumferential pattern are provided on the outer side of the positioning snap ring, the positioning snap ring and the cable connection base are snap-fitted and installed through the plurality of positioning heads, and both ends of the cable connection base and the limit clamping strips are snap-fitted and installed.

[0012] Preferably, the first metal layer and the second metal layer are electrically connected, both the first metal layer and the second metal layer are adhesively fixed to the first insulating shielding layer, and the spiral braided layer is woven from a plurality of spiral-shaped anti-cutting strips.

[0013] Preferably, the heat-conducting filler body and the sheet-shaped thermistors are fixedly connected through the insulating pressure rings, the heat-conducting filler body and the filling layer are fixedly connected through the wear monitoring component, the plurality of sheet-shaped thermistors are arranged in a circumferential pattern relative to the insulating pressure rings, and the plurality of insulating pressure rings are linearly arranged along the axis of the heat-conducting filler body.

[0014] Preferably, the heat-conducting filler body is fixedly connected to the plurality of elastic partition strips, the plurality of elastic partition strips and the second insulating shielding layer are arranged in a circumferential pattern relative to the axis of the heat-conducting filler body, an elastic partition strip is provided between adjacent two second insulating shielding layers, and both the elastic partition strip and the second insulating shielding layer are coaxial with the heat-conducting filler body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The first insulating shielding layer of the present invention can insulate and separate the first metal layer and the second metal layer, and keep the first metal layer and the second metal layer monitoring the abrasion of the cable. The spiral braided layer and multiple corrugated support rings can effectively improve the automatic recovery rate of the cable after being compressed. When the flame retardant layer, the filling layer and the spiral braided layer are worn and damaged externally, the electrical connection between the first metal layer and the second metal layer stops synchronously, so as to accurately and real-time determine the degree and location of cable damage, and avoid the use risk caused by the exposure of the battery core; 2. The linearly arranged annular arc grooves and arc-shaped mounting rings provided on the surface of the cable of the present invention can be bent at fixed points, which is convenient for any bending arrangement of the cable in a new energy vehicle. At the same time, the corrugated support rings and annular wires can provide segmented elastic support for the cable during bending, avoiding damage to the battery core during bending, and improving the elastic degree under pressure, facilitating the rapid reset of cable deformation. The cable connection seat is sleeved outside the positioning snap ring sleeve, and the cable connection seat is snap-connected with the limit card strip. Therefore, the cable can be fixed conveniently through the cable connection seat and the limit card strip, and the bending stability of the cable can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of the whole of the present invention; Figure 2 It is a sectional structural schematic diagram of the whole of the present invention; Figure 3 It is a partial sectional structural schematic diagram of the outer protection component of the present invention; Figure 4 It is a sectional structural schematic diagram of the wear monitoring component of the present invention; Figure 5 It is a partial structural schematic diagram of the wear monitoring component of the present invention; Figure 6 It is a partial structural schematic diagram of the inner protection component of the present invention; Figure 7 It is a sectional structural schematic diagram of the inner protection component of the present invention; Figure 8 It is a partial sectional structural schematic diagram of the battery core unit of the present invention; Figure 9 It is a partial sectional structural schematic diagram of the central support component of the present invention.

[0017] In the figure: 1. Outer protective component; 101. Flame retardant layer; 102. Annular arc groove; 103. Positioning snap ring; 104. Cable connection seat; 105. Limit snap strip; 106. Filling layer; 107. Arc-shaped mounting ring; 108. Annular wire; 109. Corrugated support ring; 110. Elastic filling ring; 2. Wear monitoring component; 201. First metal layer; 202. First insulating shielding layer; 203. Second metal layer; 204. Spiral braided layer; 3. Inner protective component; 301. Heat-conducting filler; 302. Insulating pressing ring; 303. Sheet-shaped thermistor; 304. Elastic partition strip; 4. Battery cell unit; 401. Second insulating shielding layer; 402. Reinforcing rib; 403. Anti-abrasion layer; 404. Battery cell main body; 5. Central support component; 501. Connection layer; 502. Central metal bar; 503. Spiral support bar. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Please refer to Figures 1 to 3 , an embodiment provided by the present invention: A composite cable for a new energy vehicle includes an outer protective component 1 and a wear monitoring component 2. The outer protective component 1 includes a filling layer 106. A plurality of annular arc grooves 102 are provided on the outer surface of the filling layer 106. An arc-shaped mounting ring 107 is installed inside the annular arc groove 102. A plurality of annular wires 108 are provided inside the arc-shaped mounting ring 107. A flame retardant layer 101 is installed outside the filling layer 106. The filling layer 106 and the flame retardant layer 101 are adhesively fixed. The arc-shaped mounting ring 107 is arranged between the flame retardant layer 101 and the filling layer 106. The filling layer 106 and the annular wire 108 are fixedly connected through the arc-shaped mounting ring 107, so that the cable can be bent arbitrarily through the annular arc groove 102 and the arc-shaped mounting ring 107, which is convenient for arranging the cable in the new energy vehicle; A plurality of positioning snap rings 103 are installed outside the flame retardant layer 101. A cable connection seat 104 is installed outside one of the positioning snap rings 103. A limit snap strip 105 is installed at one end of the cable connection seat 104. A plurality of corrugated support rings 109 are installed inside the filling layer 106. Elastic filling rings 110 are installed on both sides of each corrugated support ring 109. The positioning snap ring 103 and the flame retardant layer 101 are adhesively fixed. A plurality of positioning heads arranged in a circumferential manner are provided on the outside of the positioning snap ring 103. The positioning snap ring 103 and the cable connection seat 104 are snap-fitted and installed through a plurality of positioning heads. Both ends of the cable connection seat 104 and the limit snap strip 105 are snap-fitted and installed. The cable can be elastically supported in sections through the corrugated support ring 109 and the annular wire 108, improving the elastic degree under pressure and facilitating the rapid reset of the cable deformation.

[0020] Please refer to Figure 2 、 Figure 4 and Figure 5 Figure 5 , on the inner side of the outer protective component 1, a wear monitoring component 2 is installed. The wear monitoring component 2 includes a second metal layer 203. On the outer side of the second metal layer 203, a first insulating shielding layer 202 is installed. On the outer side of the first insulating shielding layer 202, a first metal layer 201 is installed. On the outer side of the first metal layer 201, a spiral braided layer 204 is installed. The first metal layer 201 and the second metal layer 203 are electrically connected. Both the first metal layer 201 and the second metal layer 203 are adhesively fixed to the first insulating shielding layer 202. The spiral braided layer 204 is woven from a plurality of spiral anti-cut strips. Through the spiral braided layer 204 and a plurality of corrugated support rings 109, the wear resistance and anti-cutting effect of the cable can be effectively maintained, and at the same time, the automatic recovery rate of the cable after being pressed is increased.

[0021] Please refer to Figure 2 、 Figure 6 and Figure 7 Figure 7 , on the inner side of the wear monitoring component 2, an inner protective component 3 is installed. The inner protective component 3 includes a heat-conducting filler 301. On the outer side of the heat-conducting filler 301, a plurality of insulating pressure rings 302 are installed. On the outer side of each insulating pressure ring 302, a plurality of sheet-shaped thermistors 303 are installed. Inside the heat-conducting filler 301, a plurality of elastic partition strips 304 are installed. The heat-conducting filler 301 and the sheet-shaped thermistors 303 are fixedly connected through the insulating pressure rings 302. The heat-conducting filler 301 and the filling layer 106 are fixedly connected through the wear monitoring component 2. The plurality of sheet-shaped thermistors 303 are arranged in a circumferential pattern relative to the insulating pressure rings 302, and the plurality of insulating pressure rings 302 are arranged linearly along the axis of the heat-conducting filler 301. According to the change in the resistance value generated by the sheet-shaped thermistors 303 during the power-on process, distributed temperature monitoring operations can be performed on the cable, facilitating the timely detection of local temperature rise of the cable.

[0022] Please refer to Figure 7 and Figure 8, a plurality of battery cell units 4 are installed on the inner side of the inner protection component 3. The battery cell unit 4 includes a second insulation shielding layer 401. A plurality of reinforcing ribs 402 are provided on the outer surface of the second insulation shielding layer 401. An anti-abrasion layer 403 is installed on the inner side of the second insulation shielding layer 401. A battery cell main body 404 is installed on the inner side of the anti-abrasion layer 403. The heat-conducting filler 301 is fixedly connected to a plurality of elastic partition strips 304. The plurality of elastic partition strips 304 and the second insulation shielding layer 401 are arranged in a circumferential manner with respect to the axis of the heat-conducting filler 301. An elastic partition strip 304 is provided between adjacent two second insulation shielding layers 401. The elastic partition strip 304 and the second insulation shielding layer 401 are coaxial with the heat-conducting filler 301, so that the heat-conducting filler 301 can effectively partition and shield the battery cell main body 404 through the elastic partition strip 304, and keep the distance between adjacent two battery cell main bodies 404 stable.

[0023] Please refer to Figure 7 and Figure 9 , a central support component 5 is installed between the plurality of battery cell units 4. The central support component 5 includes a connection layer 501. A spiral support strip 503 is provided on the outer surface of the connection layer 501. A central metal strip 502 is installed on the inner side of the connection layer 501. The connection strength of the cable center can be improved through the connection layer 501 and the central metal strip 502.

[0024] During use, when the cable is applied to a new energy vehicle, the central support component 5, the plurality of battery cell units 4, the inner protection component 3, the wear monitoring component 2 and the outer protection component 1 are sleeved and assembled in sequence from the inside to the outside, so that the plurality of battery cell units 4 are arranged in a circumferential manner with respect to the central support component 5, and are covered and fixed by the heat-conducting filler 301 to keep the installation of the battery cell units 4 and the central support component 5 stable. A central metal strip 502 is installed on the inner side of the connection layer 501, so that the connection strength of the cable center can be improved through the connection layer 501 and the central metal strip 502. An elastic partition strip 304 is installed between adjacent two second insulation shielding layers 401, so that the heat-conducting filler 301 can effectively partition and shield the battery cell main body 404 through the elastic partition strip 304, and keep the distance between adjacent two battery cell main bodies 404 stable; A plurality of insulating compression rings 302 are installed along the axis of the heat-conducting filler 301, and a plurality of sheet-shaped thermistors 303 arranged in a circumferential pattern are installed on the outer side of each insulating compression ring 302. According to the change in the resistance value generated by the sheet-shaped thermistors 303 during the electrification process, distributed temperature monitoring operations can be performed on the cable, facilitating timely detection of local heating of the cable. A second metal layer 203 and a first metal layer 201 are respectively installed inside and outside the first insulating shield layer 202, so that the first insulating shield layer 202 can insulate and separate the first metal layer 201 and the second metal layer 203, and the first metal layer 201 and the second metal layer 203 are used to monitor the abrasion of the cable; Specifically, a spiral braided layer 204 is installed on the outer side of the first metal layer 201, and a plurality of corrugated support rings 109 are installed inside the filler layer 106, so that the spiral braided layer 204 and the plurality of corrugated support rings 109 can effectively maintain the wear resistance and anti-cutting effect of the cable, and at the same time improve the automatic recovery rate of the cable after being compressed. When the flame-retardant layer 101, the filler layer 106, and the spiral braided layer 204 are worn and damaged externally, the electrical connection between the first metal layer 201 and the second metal layer 203 stops synchronously, and thus the damage degree and damage position of the cable can be accurately and real-time determined, avoiding the use risk caused by the exposure of the battery core; A plurality of annular arc grooves 102 are provided on the outer side of the filler layer 106, and an arc-shaped mounting ring 107 is installed on the inner side of each annular arc groove 102, so that the cable can be bent arbitrarily through the annular arc grooves 102 and the arc-shaped mounting rings 107, facilitating the arrangement of the cable in a new energy vehicle. At the same time, the cable can be elastically supported in a segmented manner through the corrugated support rings 109 and the annular wire 108, improving the elastic degree under pressure and facilitating the rapid reset of the cable deformation. The cable connection seat 104 is sleeved on the outer side of the flame-retardant layer 101 through the positioning snap ring 103, and the cable connection seat 104 is snap-connected with the limit card strip 105. Therefore, the cable can be fixed through the cable connection seat 104 and the limit card strip 105, facilitating the maintenance of the bending stability of the cable.

[0025] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A composite cable for new energy vehicles, comprising an outer protection component (1) and a wear monitoring component (2), characterized in that: The inner side of the outer protective component (1) is provided with a wear monitoring component (2); The outer protective component (1) includes a filling layer (106). The outer surface of the filling layer (106) is provided with a plurality of annular arc grooves (102). The inner side of the annular arc grooves (102) is provided with an arc-shaped mounting ring (107). The inside of the arc-shaped mounting ring (107) is provided with a plurality of annular wires (108). The outer side of the filling layer (106) is provided with a plurality of positioning snap rings (103). One end of a cable connection seat (104) is mounted on the outer side of one of the positioning snap rings (103). One end of the cable connection seat (104) is provided with a limit card strip (105). The inside of the filling layer (106) is provided with a plurality of corrugated support rings (109). Elastic filling rings (110) are mounted on both sides of each corrugated support ring (109); The wear monitoring component (2) includes a second metal layer (203). The outer side of the second metal layer (203) is provided with a first insulating shielding layer (202). The outer side of the first insulating shielding layer (202) is provided with a first metal layer (201). The outer side of the first metal layer (201) is provided with a spiral braided layer (204).

2. The composite cable for new energy vehicles according to claim 1, wherein: The inner side of the wear monitoring component (2) is provided with an inner protective component (3). The inner side of the inner protective component (3) is provided with a plurality of battery cell units (4). A central support component (5) is mounted between the plurality of battery cell units (4). The outer protective component (1) further includes a flame retardant layer (101) fixedly connected to the filling layer (106). The flame retardant layer (101) is mounted between the filling layer (106) and the plurality of positioning snap rings (103). The plurality of arc-shaped mounting rings (107) are all arranged between the flame retardant layer (101) and the filling layer (106).

3. The composite cable for new energy vehicles according to claim 2, wherein: The inner protective component (3) includes a heat-conducting filling body (301). The outer side of the heat-conducting filling body (301) is provided with a plurality of insulating pressing rings (302). A plurality of sheet-shaped thermistors (303) are mounted on the outer side of each insulating pressing ring (302). The inside of the heat-conducting filling body (301) is provided with a plurality of elastic partition strips (304).

4. The composite cable for a new energy vehicle according to claim 3, characterized in that: The battery cell unit (4) includes a second insulating shielding layer (401). The outer surface of the second insulating shielding layer (401) is provided with a plurality of reinforcing ridges (402). The inner side of the second insulating shielding layer (401) is provided with an anti-wear layer (403). The inside of the anti-wear layer (403) is provided with a battery cell main body (404).

5. The composite cable for new energy vehicles according to claim 4, characterized in that: The central support component (5) includes a connecting layer (501). The outer surface of the connecting layer (501) is provided with spiral support bars (503). The inner side of the connecting layer (501) is provided with a central metal bar (502).

6. The composite cable for a new energy vehicle according to claim 5, wherein: The filling layer (106) is adhesively fixed to the flame retardant layer (101). The arc-shaped mounting ring (107) is arranged between the flame retardant layer (101) and the filling layer (106). The filling layer (106) is fixedly connected to the annular wire (108) through the arc-shaped mounting ring (107).

7. The composite cable for a new energy vehicle according to claim 6, characterized in that: The positioning snap ring (103) is adhesively fixed to the flame retardant layer (101). A plurality of positioning heads arranged in a circle are provided on the outer side of the positioning snap ring (103). The positioning snap ring (103) and the cable connection base (104) are snap-fitted and installed through the plurality of positioning heads. Both ends of the cable connection base (104) and the limit clamping strips (105) are snap-fitted and installed.

8. The composite cable for a new energy vehicle according to claim 7, wherein: The first metal layer (201) and the second metal layer (203) are electrically connected. The first metal layer (201) and the second metal layer (203) are both adhesively fixed to the first insulating shielding layer (202). The spiral braided layer (204) is woven and composed of a plurality of spiral anti-cutting strips.

9. The composite cable for new energy vehicles according to claim 8, wherein: The heat-conducting filler (301) and the sheet-shaped thermistor (303) are fixedly connected through the insulating pressing ring (302). The heat-conducting filler (301) and the filler layer (106) are fixedly connected through the wear monitoring component (2). The plurality of sheet-shaped thermistors (303) are arranged in a circle relative to the insulating pressing ring (302). The plurality of insulating pressing rings (302) are linearly arranged along the axis of the heat-conducting filler (301).

10. The composite cable for a new energy vehicle according to claim 9, wherein: The heat-conducting filler (301) is fixedly connected to a plurality of elastic separation strips (304). The plurality of elastic separation strips (304) and the second insulating shielding layer (401) are arranged in a circle relative to the axis of the heat-conducting filler (301). An elastic separation strip (304) is provided between adjacent second insulating shielding layers (401). The elastic separation strip (304) and the second insulating shielding layer (401) are both coaxial with the heat-conducting filler (301).

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