Bending-resistant cable for new energy automobile

Abstract

The utility model provides a bending-resistant cable for new energy automobile, which comprises a support frame, an elastic column, inner sheaths, an elastic layer, a bending-resistant layer, an outer sheath and wire core bodies, the elastic column is fixed in the center of the support frame, a plurality of inner sheaths are fixed in the support frame, and the wire core bodies are fixed in the middles of the inner sheaths; an elastic layer is fixed on the outer side surface of the support frame, a bending-resistant layer is fixed on the outer side surface of the elastic layer, and an outer sheath is fixed on the outer side surface of the bending-resistant layer. According to the utility model, the arrangement of the support frame and the bending-resistant layer not only can prevent the position of the wire core body from changing, but also can prevent spontaneous combustion of the wire core body, and in addition, the bending-resistant performance of the whole cable is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, and in particular relates to a bend-resistant cable for new energy vehicles. Background Technology

[0002] In the field of new energy vehicles, cables are key components for power transmission, and their performance directly affects the safety and stability of vehicle operation. They are usually composed of several or several groups of wires, each group of wires is insulated from each other, and they are often twisted around a central core, with the entire outer layer covered with a highly insulating coating.

[0003] However, existing bend-resistant cables for new energy vehicles have the following defects in actual use: First, during vehicle operation, the cable is easily squeezed due to vibration and other factors, causing the core to shift. After the squeezing pressure is released, the existing cable cannot allow the core to return to its original position. Second, the bend resistance of existing cables mainly relies on the flexibility of the outer sheath material. When the cable is excessively bent, it cannot actively return to its original position. After long-term use, the cable is prone to problems such as sheath cracking and internal core breakage at the bend, shortening the cable's service life. In addition, existing cables also have defects in fire resistance. Once the core overheats and spontaneously combusts due to overload or other reasons, the lack of effective flame-retardant measures allows the fire to spread easily, thus threatening the safety of the entire vehicle.

[0004] Therefore, it is essential to invent a bend-resistant cable for new energy vehicles. Utility Model Content

[0005] To address the above problems, this utility model proposes a bend-resistant cable for new energy vehicles, and the technical solution used is as follows:

[0006] A bend-resistant cable for new energy vehicles includes a support frame, an elastic column, an inner sheath, an elastic layer, a bend-resistant layer, an outer sheath, and a conductor body. The elastic column is fixed at the center of the support frame, and several inner sheaths are fixed inside the support frame, with a conductor body fixed in the middle of each inner sheath. An elastic layer is fixed to the outer side of the support frame, and a bend-resistant layer is fixed to the outer side of the elastic layer, with an outer sheath fixed to the outer side of the bend-resistant layer.

[0007] Furthermore, the support frame includes a first positioning tube, a second positioning tube, and an isolation tube. An elastic column is fixed in the middle of the first positioning tube, and several second positioning tubes are fixed on the outer side of the first positioning tube. Each of the second positioning tubes has an inner sheath fixed inside. An isolation tube is provided between adjacent second positioning tubes. The isolation tube is fixed to the first positioning tube, and the middle of the isolation tube is hollow. This arrangement can limit the position of the core body. Secondly, after the cable is squeezed, the core body can be reset.

[0008] Furthermore, the second positioning tube includes a connecting plate, a tube body, and dry powder. One end of the connecting plate is fixed to the outer side of the first positioning tube, and the other end of the connecting plate is fixed to the tube body. An inner sheath is fixed inside the tube body. An interlayer is provided inside the tube wall of the tube body, and the interlayer is filled with dry powder. This arrangement can prevent the spontaneous combustion of the core body due to overheating.

[0009] Furthermore, the bending-resistant layer includes an inner layer, an outer layer, and an armor strip. The inner layer is fixed to the outer side of the elastic layer, and the armor strip is fixed to the outer side of the inner layer. The outer layer is fixed to the outer side of the armor strip, and an outer sheath is fixed to the outer side of the outer layer. The armor strip has a spiral structure. This design not only straightens the cable based on its own elasticity when the cable is bent, but also prevents the cable from bending excessively.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The support frame of this utility model can limit the position of the wire core body, and,

[0012] When the cable is squeezed, causing the second positioning tube to gradually approach, the isolation tube can deform accordingly. After the squeezing ends, the isolation tube can reset the second positioning tube under its own elasticity. In addition, when the core body spontaneously combusts due to overheating, it can prevent the core body from spontaneously combusting.

[0013] 2. The bending-resistant layer of this utility model can not only straighten the cable when it is bent by its own elasticity, but also prevent the cable from bending excessively. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural schematic diagram of the support frame of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the second positioning tube of this utility model.

[0018] Figure 4This is a schematic diagram of the bending-resistant layer of this utility model.

[0019] In the picture:

[0020] 1-Support frame, 11-First positioning tube, 12-Second positioning tube, 121-Connecting plate, 122-Tube body, 123-Dry powder, 13-Isolation tube, 2-Elastic column, 3-Inner sheath, 4-Elastic layer, 5-Bending layer, 51-Inner layer, 52-Outer layer, 53-Armor tape, 6-Outer sheath, 7-Core body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Please see Figures 1 to 4 As shown, this utility model is a bend-resistant cable for new energy vehicles, including a support frame 1, an elastic column 2, an inner sheath 3, an elastic layer 4, a bend-resistant layer 5, an outer sheath 6, and a core body 7. An elastic column 2 is fixed at the center of the support frame 1. The elastic column 2 is a column made of silicone rubber. Several inner sheaths 3 are fixed inside the support frame 1. The core body 7 is fixed in the middle of each inner sheath 3. The inner sheaths 3 are made of polyvinyl chloride (PVC). An elastic layer 4 is fixed on the outer side of the support frame 1. A bend-resistant layer 5 is fixed on the outer side of the elastic layer 4. An outer sheath 6 is fixed on the outer side of the bend-resistant layer 5. The elastic layer 4 is made of thermoplastic elastomer (TPE) material, and the outer sheath 6 is made of neoprene rubber material.

[0024] Specifically, the support frame 1 includes a first positioning tube 11, a second positioning tube 12, and an isolation tube 13. An elastic column 2 is fixed in the middle of the first positioning tube 11, and several second positioning tubes 12 are fixed on the outer side of the first positioning tube 11. Each of the second positioning tubes 12 has an inner sheath 3 fixed inside. An isolation tube 13 is provided between adjacent second positioning tubes 12. The isolation tube 13 is fixed to the first positioning tube 11, and the middle of the isolation tube 13 is hollow. In use, the position of the core body 7 can be limited by the setting of the first positioning frame and the second positioning frame. Secondly, when the cable is squeezed, causing the second positioning tubes 12 to gradually approach, the isolation tube 13 can deform accordingly. After the squeezing ends, the isolation tube 13 can reset the second positioning tubes 12 under its own elasticity.

[0025] Specifically, the second positioning tube 12 includes a connecting plate 121, a tube body 122, and dry powder 123. One end of the connecting plate 121 is fixed to the outer side of the first positioning tube 11, and the other end of the connecting plate 121 is fixed to the tube body 122. An inner sheath 3 is fixed inside the tube cavity of the tube body 122. A sandwich layer is opened inside the tube wall of the tube body 122, and the sandwich layer is filled with dry powder 123. When the core body 7 spontaneously combusts due to overheating, the high temperature generated during spontaneous combustion will cause the tube body 122 to melt. At this time, the dry powder 123 will prevent the spontaneous combustion of the core body 7.

[0026] Specifically, the bending layer 5 includes an inner layer 51, an outer layer 52, and an armor strip 53. The inner layer 51 is fixed to the outer side of the elastic layer 52, and the armor strip 53 is fixed to the outer side of the inner layer 51. The outer layer 52 is fixed to the outer side of the armor strip 53, and an outer sheath 6 is fixed to the outer side of the outer layer 52. The armor strip 53 has a spiral structure. When in use, the inner layer 51 and the outer layer 52 can limit the position of the armor strip 53. The armor strip 53 can not only straighten the cable according to its own elasticity when the cable is bent, but also prevent the cable from being bent excessively.

[0027] Please see Figure 1-4 As shown, this utility model is a bend-resistant cable for new energy vehicles. Its working principle is as follows: when in use, the core body 7 can conduct the electrical energy required by the new energy vehicle. Secondly, the support frame 1 can limit the position of the core body 7. In addition, the bend-resistant layer 5 can improve the overall bend resistance of the cable.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A bend-resistant cable for new energy vehicles, comprising a support frame (1), an elastic column (2), an inner sheath (3), an elastic layer (4), a bend-resistant layer (5), an outer sheath (6), and a conductor body (7), characterized in that: An elastic column (2) is fixed at the center of the support frame (1), and several inner sheaths (3) are fixed inside the support frame (1). A wire core body (7) is fixed in the middle of each inner sheath (3). An elastic layer (4) is fixed on the outer side of the support frame (1), and a bending-resistant layer (5) is fixed on the outer side of the elastic layer (4). An outer sheath (6) is fixed on the outer side of the bending-resistant layer (5).

2. The bend-resistant cable for new energy vehicles as described in claim 1, characterized in that: The support frame (1) includes a first positioning tube (11), a second positioning tube (12), and an isolation tube (13). An elastic column (2) is fixed in the middle of the first positioning tube (11), and several second positioning tubes (12) are fixed on the outer side of the first positioning tube (11). Each of the second positioning tubes (12) has an inner sheath (3) fixed inside. An isolation tube (13) is provided between adjacent second positioning tubes (12). The isolation tubes (13) are all fixed to the first positioning tubes (11), and the middle part of the isolation tube (13) is hollow.

3. The bend-resistant cable for new energy vehicles as described in claim 2, characterized in that: The second positioning tube (12) includes a connecting plate (121), a tube body (122), and dry powder (123). One end of the connecting plate (121) is fixed to the outer side of the first positioning tube (11), and the other end of the connecting plate (121) is fixed to the tube body (122). An inner sheath (3) is fixed inside the tube cavity of the tube body (122). A sandwich layer is opened inside the tube wall of the tube body (122), and the interior of the sandwich layer is filled with dry powder (123).

4. The bend-resistant cable for new energy vehicles as described in claim 1, characterized in that: The bending layer (5) includes an inner layer (51), an outer layer (52), and an armor belt (53). The inner layer (51) is fixed to the outer side of the elastic layer (4), and the outer side of the inner layer (51) is fixed with an armor belt (53). The outer side of the armor belt (53) is fixed with an outer layer (52), and the outer side of the outer layer (52) is fixed with an outer sheath (6). The armor belt (53) has a spiral structure.

Images