Bending-resistant and high-voltage-resistant wiring harness for new energy automobile

Abstract

The utility model discloses an anti-bending high-voltage wire harness for a new energy automobile, and relates to the technical field of new energy automobiles. Comprising an outer compression-resistant layer, an anti-bending layer is arranged on the inner side of the outer compression-resistant layer, a waterproof layer is arranged on the inner side of the anti-bending layer, a lining layer is arranged on the inner side of the waterproof layer, a plurality of conductive wires are arranged on the inner side of the lining layer, the conductive wires are sleeved with buffer pipes, and a filling layer is arranged between the buffer pipes and the lining layer. The whole bending angle of the wire harness is limited to a certain extent by using the plurality of anti-bending rigid sheets I and the plurality of anti-bending rigid sheets II, so that the wire harness is effectively prevented from being greatly bent when being used, the damage to a cable caused by repeated and large-amplitude bending is solved, and through the matched use of different numbers of the anti-bending rigid sheets I and the anti-bending rigid sheets II, the wire harness is prevented from being damaged by large-amplitude bending. The bending amplitude of the wire harness towards the first anti-bending rigid piece and the bending amplitude of the wire harness towards the second anti-bending rigid piece are different, and therefore it is guaranteed that the device can meet the use requirements of the wire harness at different positions while limiting the bending amplitude of the wire harness.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a bending-resistant and high-voltage-resistant wire harness for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source, and integrate advanced technologies in vehicle power control and drive to form advanced technical principles, new technologies, and new structures. In new energy vehicles, high-voltage wiring harnesses are often required between the controller and the motor, the battery management system, the charging interface, and other auxiliary systems.

[0003] Existing wiring harnesses generally simply bundle several cables together through binding tape or protective sleeves, and the external protection effect is poor, which causes the electronic wiring harness to be easily damaged after being squeezed. In the process of circuit connection, it is inevitable that some cables will be bent repeatedly, and repeated bending can easily damage the internal conductive structure of the cable, reducing the service life of the electronic wiring harness. Utility Model Content

[0004] The purpose of the utility model is to provide a new energy vehicle anti-bending and high-voltage resistant wiring harness, which solves the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new energy vehicle anti-bending and high-voltage resistant wiring harness, comprising an outer anti-pressure layer, an anti-bending layer is arranged on the inner side of the outer anti-pressure layer, a waterproof layer is arranged on the inner side of the anti-bending layer, an inner lining layer is arranged on the inner side of the waterproof layer, a plurality of conductive wires are arranged on the inner side of the inner lining layer, a buffer tube is sleeved on the conductive wire, a filling layer is arranged between the buffer tube and the inner lining layer, and the filling layer is made of polyester fiber material;

[0006] A plurality of inlay grooves 1 and a plurality of inlay grooves 2 are provided on the outer side wall of the anti-bending layer, and the inlay grooves 1 and the inlay grooves 2 are distributed symmetrically with respect to the center. The plurality of inlay grooves 1 and the plurality of inlay grooves 2 are evenly distributed on the outer side wall of the anti-bending layer, and the number of inlay grooves 1 is greater than the number of inlay grooves 2. An anti-bending rigid sheet 1 is provided on the inner side of the inlay groove 1, and an anti-bending rigid sheet 2 is provided on the inner side of the inlay groove 2.

[0007] Preferably, a mounting hole is provided on the inner side of the outer pressure-resistant layer, the mounting hole is in a spiral structure, and a pressure-resistant spring is provided in the mounting hole.

[0008] Preferably, a plurality of buffer cavities are provided in the side wall of the buffer tube.

[0009] Preferably, an outer corrugated sleeve is provided on the outer pressure-resistant layer.

[0010] Preferably, the waterproof layer is made of double-sided aluminum-plastic composite tape.

[0011] Preferably, the inner lining layer is made of EPDM rubber material.

[0012] Compared with the related art, the anti-bending and high-voltage resistant wiring harness for new energy vehicles provided by the utility model has the following beneficial effects:

[0013] 1. In the present device, an outer pressure-resistant layer and an anti-bending layer are arranged on the outside of several conductive wires, and an anti-bending rigid sheet 1 and an anti-bending rigid sheet 2 are inlaid on the outside of the anti-bending layer. When in use, several anti-bending rigid sheets 1 and 2 are used to limit the overall bending angle of the wiring harness, thereby effectively avoiding the wiring harness from being bent sharply during use, thereby effectively solving the damage to the cable caused by repeated sharp bending of the traditional wiring harness. Through the coordinated use of different numbers of anti-bending rigid sheets 1 and 2, the bending amplitudes of the wiring harness in the direction of the anti-bending rigid sheet 1 and the bending amplitudes in the direction of the anti-bending rigid sheet 2 are different, thereby ensuring that the device can meet the needs of using the wiring harness in different positions while limiting the bending amplitude of the wiring harness.

[0014] 2. An outer pressure-resistant layer is provided in the device, and a pressure-resistant spring is provided inside the outer pressure-resistant layer, which greatly improves the pressure resistance of the wiring harness and protects the internal conductive wire from damage. The outer corrugated sleeve provided on the outer pressure-resistant layer can enhance the wear resistance and protection of the wiring harness, especially in complex environments such as bumpy roads, and can effectively protect the wiring harness from damage by external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the explosion structure of the outer pressure-resistant layer of the utility model;

[0018] Figure 4 For the utility model Figure 3 Enlarged view of point B in the middle;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the anti-bending layer of the utility model;

[0020] Figure 6 This is a schematic diagram of the anti-bending layer explosion mechanism of the utility model;

[0021] Figure 7 For the utility model Figure 6 Enlarged view of point C in the middle;

[0022] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the buffer tube of the utility model;

[0023] Fig. 9 For the utility model Figure 8 Enlarged view of point D in the middle.

[0024] In the figure: 1. outer pressure-resistant layer; 2. outer corrugated casing; 3. anti-bending layer; 4. waterproof layer; 5. inner lining layer; 6. filling layer; 7. conductive wire; 8. buffer tube; 9. mounting hole; 10. pressure-resistant spring; 11. inlay groove one; 12. inlay groove two; 13. anti-bending rigid sheet one; 14. anti-bending rigid sheet two; 15. buffer cavity. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-Figure 9 The utility model provides a technical solution: a new energy vehicle anti-bending and high-voltage resistant wiring harness, comprising an outer anti-pressure layer 1, an anti-bending layer 3 is arranged on the inner side of the outer anti-pressure layer 1, a waterproof layer 4 is arranged on the inner side of the anti-bending layer 3, an inner lining layer 5 is arranged on the inner side of the waterproof layer 4, a plurality of conductive wires 7 are arranged on the inner side of the inner lining layer 5, a buffer tube 8 is sleeved on the conductive wire 7, a filling layer 6 is arranged between the buffer tube 8 and the inner lining layer 5, and the filling layer 6 is made of polyester fiber material;

[0028] The outer wall of the anti-bending layer 3 is provided with a plurality of inlay grooves 11 and a plurality of inlay grooves 12, which are centrally symmetrically distributed. The plurality of inlay grooves 11 and the plurality of inlay grooves 12 are evenly distributed on the outer wall of the anti-bending layer 3, and the number of inlay grooves 11 is greater than the number of inlay grooves 12. An anti-bending rigid sheet 13 is provided on the inner side of the inlay groove 11, and an anti-bending rigid sheet 2 14 is provided on the inner side of the inlay groove 12. The anti-bending rigid sheet 13 and the anti-bending rigid sheet 2 14 are both C-shaped. When in use, the plurality of anti-bending rigid sheets 13 and 14 are used to form a C-shaped inlay groove. The rigid sheet 13 and the anti-bending rigid sheet 2 14 limit the overall bending angle of the wire harness to a certain extent, thereby effectively preventing the wire harness from being bent significantly during use, thereby effectively solving the damage to the cable caused by repeated significant bending of the traditional wire harness; at the same time, the coordinated use of different numbers of the anti-bending rigid sheet 13 and the anti-bending rigid sheet 2 14 in the device makes the bending amplitude of the wire harness in the direction of the anti-bending rigid sheet 13 and the bending amplitude in the direction of the anti-bending rigid sheet 2 14 different, thereby ensuring that the device can meet the needs of using the wire harness in different positions while limiting the bending amplitude of the wire harness;

[0029] The inner side of the outer pressure-resistant layer 1 is provided with a mounting hole 9, which is in a spiral structure. A pressure-resistant spring 10 is arranged in the mounting hole 9. The arrangement of the pressure-resistant spring 10 greatly improves the pressure resistance of the wiring harness and protects the internal conductive wire 7 from damage.

[0030] A plurality of buffer cavities 15 are arranged in the side wall of the buffer tube 8. The design of the buffer cavity 15 plays a certain role in buffering the external pressure. At the same time, when the conductive wire 7 is pulled, the buffer cavity 15 is used to buffer the movement to prevent the conductive wire 7 from being damaged by the external force. During the bending process, the buffer cavity 15 provides an adaptable space for the conductive wire 7 to move, further improving the anti-bending performance of the product.

[0031] An outer corrugated sleeve 2 is provided on the outer pressure-resistant layer 1. The outer corrugated sleeve 2 can enhance the wear resistance and protection of the wiring harness. In particular, the outer corrugated sleeve 2 plays a certain buffering role in complex environments such as bumpy roads, and can effectively protect the wiring harness from damage by external factors.

[0032] The waterproof layer 4 is made of double-sided aluminum-plastic composite tape, which has good waterproof properties and strong high-temperature insulation ability, so that the product can maintain stable performance at higher temperatures;

[0033] The inner lining layer 5 is made of EPDM rubber material. EPDM rubber material has good insulation and heat resistance, which can ensure that the wiring harness works stably under high temperature and high pressure environment and improve safety. The aging resistance of EPDM rubber material greatly improves the life of the wiring harness.

[0034] Working principle: When in use, the left and right ends of the conductive wire 7 in the device extend to the two sides of the outer pressure-resistant layer 1 for line connection. A pressure-resistant spring 10 is arranged in the outer pressure-resistant layer 1 to greatly improve the pressure resistance of the harness and protect the internal conductive wire 7 from damage. At the same time, an outer corrugated sleeve 2 is sleeved on the outer pressure-resistant layer 1 to enhance the wear resistance and protection of the harness, especially in complex environments such as bumpy roads. It can effectively protect the harness from damage by external factors; an anti-bending rigid sheet 13 and an anti-bending rigid sheet 2 14 are inlaid on the outer side of the anti-bending layer 3. When in use, use several The anti-bending rigid sheet 13 and the anti-bending rigid sheet 2 14 limit the overall bending angle of the wiring harness to a certain extent, thereby effectively preventing the wiring harness from being bent significantly during use, and effectively solving the damage to the cables caused by repeated significant bending of the traditional wiring harness; at the same time, the coordinated use of different numbers of anti-bending rigid sheets 13 and anti-bending rigid sheets 2 14 in the device makes the bending amplitude of the wiring harness in the direction of the anti-bending rigid sheet 13 and the bending amplitude in the direction of the anti-bending rigid sheet 2 14 different, thereby ensuring that the device can meet the needs of using the wiring harness in different positions while limiting the bending amplitude of the wiring harness.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle anti-bending and high-voltage resistant wiring harness, comprising an outer pressure-resistant layer (1), characterized in that: An anti-bending layer (3) is arranged on the inner side of the outer pressure-resistant layer (1), a waterproof layer (4) is arranged on the inner side of the anti-bending layer (3), an inner lining layer (5) is arranged on the inner side of the waterproof layer (4), a plurality of conductive wires (7) are arranged on the inner side of the inner lining layer (5), a buffer tube (8) is sleeved on the conductive wire (7), a filling layer (6) is arranged between the buffer tube (8) and the inner lining layer (5), and the filling layer (6) is made of polyester fiber material; The outer wall of the anti-bending layer (3) is provided with a plurality of inlay grooves one (11) and a plurality of inlay grooves two (12), the inlay grooves one (11) and the inlay grooves two (12) are centrally symmetrically distributed, the plurality of inlay grooves one (11) and the plurality of inlay grooves two (12) are evenly distributed on the outer wall of the anti-bending layer (3), the number of inlay grooves one (11) is greater than the number of inlay grooves two (12), an anti-bending rigid sheet one (13) is provided on the inner side of the inlay groove one (11), and an anti-bending rigid sheet two (14) is provided on the inner side of the inlay groove two (12).

2. The anti-bending and high-voltage resistant wire harness for new energy vehicles according to claim 1, characterized in that: A mounting hole (9) is provided on the inner side of the outer pressure-resistant layer (1); the mounting hole (9) is in a spiral structure; and a pressure-resistant spring (10) is provided in the mounting hole (9).

3. The anti-bending and high-voltage resistant wire harness for new energy vehicles according to claim 1, characterized in that: A plurality of buffer cavities (15) are arranged in the side wall of the buffer tube (8).

4. The bending-resistant and high-voltage-resistant wiring harness for new energy vehicles according to claim 1 is characterized in that: An outer corrugated sleeve (2) is sleeved on the outer pressure-resistant layer (1).

5. The anti-bending and high-voltage resistant wire harness for new energy vehicles according to claim 1, characterized in that: The waterproof layer (4) is made of a double-sided aluminum-plastic composite tape.

6. The bending-resistant and high-voltage-resistant wiring harness for new energy vehicles according to claim 1, characterized in that: The inner lining layer (5) is made of ethylene propylene rubber material.

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