High-airtightness rotary transformer wire harness

Abstract

The utility model relates to a high airtight rotary transformer wire harness in the field of rotary transformer wire harnesses, which comprises a plurality of cables and connectors respectively arranged at two ends of the cables, a barrier structure is arranged in the middle of each cable, and a waterproof rubber plug is integrally formed at the position, corresponding to the barrier structure, of each cable. According to the utility model, the blocking structure capable of isolating oil and gas is arranged in the middle of the cable, so that the oil and gas in a cylinder cannot permeate to the outside through the battery core in the rotary transformation wire harness, and the waterproof air tightness of the blocking structure is improved through the waterproof rubber plug, so that the oil and gas are thoroughly isolated from permeating to the outside through the rotary transformation wire harness, and the service life of the rotary transformation wire harness is ensured.

Description

Technical Field

[0001] The utility model relates to the field of rotational transformer wire harnesses, in particular to a high-airtight rotational transformer wire harness. Background Art

[0002] The oil-cooled motor of new energy vehicles is the power device that drives the vehicle. In order to determine the operating status of the motor, the motor outputs the resolver signal and temperature signal to the motor controller, which determines the operating status of the motor and implements control according to the established strategy. The cylinder wiring harness inside the oil-cooled motor is the channel for internal and external information transmission. The wiring harness is composed of connectors, wires and other accessories, and the wires are bundled into bundles according to the layout through the outer covering. The wiring harness is the neural network of the car. Its safety and reliability are related to the safety of the passengers and the realization of the vehicle functions. It is a relatively important automotive component.

[0003] When the oil-cooled motor is running, high-temperature and high-density oil and gas will be generated in the sealed shell. High temperature not only affects the service life of the wiring harness, but also causes a pressure difference between the inside and outside of the shell. Poor sealing can cause oil and gas to leak to the outside through the gap between the conductor and the insulation layer of the cylinder connector and the wire. This puts higher requirements on the service life and oil leakage prevention ability of the resolver wiring harness installed inside the oil-cooled motor. Utility Model Content

[0004] The purpose of the utility model is to solve the above defects and provide a high-airtight rotational variable wiring harness to solve the problems mentioned in the above background technology.

[0005] The purpose of the utility model is achieved by the following methods:

[0006] A high-airtight rotational variable wiring harness comprises a plurality of cables and connectors respectively arranged at both ends of the cables, a barrier structure is arranged in the middle of the cables, and a waterproof rubber plug is integrally formed at a position of the cables corresponding to the barrier structure.

[0007] Furthermore, the cable is composed of a battery core and an insulating layer wrapped around the outside of the battery core, and the insulating layer is provided with an isolation area that exposes the battery core to the outside at a position corresponding to the barrier structure, and the barrier structure is conductive solder filled in the isolation area.

[0008] Furthermore, the outer side of the barrier structure is wrapped with several layers of heat shrink tubing.

[0009] Furthermore, the outer sides of the plurality of cables are wrapped with protective tape.

[0010] Furthermore, a sealing rubber plug is sleeved in the middle of the cable, and a plurality of through holes through which the cable can pass are evenly arranged in the middle of the sealing rubber plug.

[0011] Furthermore, a plurality of sealing protrusions for interference fit with the cable are evenly arranged on the inner wall of the through hole.

[0012] The utility model sets an isolation structure that can isolate oil and gas in the middle of the cable, so that the oil and gas in the cylinder cannot penetrate to the outside through the battery core inside the rotational transformer harness, and improves the waterproof and airtightness of the isolation structure through a waterproof rubber plug, thereby completely isolating the way for oil and gas to penetrate to the outside through the rotational transformer harness, thereby ensuring the service life of the rotational transformer harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of a high-airtight rotational wiring harness of the utility model;

[0014] Figure 2 This is a cross-sectional view of a high-airtight rotational wiring harness of the utility model;

[0015] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0016] Figure 4 It is a cross-sectional view of the waterproof rubber plug in the utility model;

[0017] Figure 5 It is a cross-sectional view of the battery cell in the utility model;

[0018] The reference numerals in the figure are: 1-cable, 1A-battery core, 11A-copper wire, 1B-insulating layer, 1C-isolation area, 2-waterproof rubber plug, 3-conductive solder, 4-heat shrink tubing, 5-protective tape, 6-sealing rubber plug, 601-through hole, 602-sealing protrusion. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] In this embodiment, refer to Figure 1-Figure 5 A high-airtight rotational variable wiring harness is specifically implemented, including a plurality of cables 1 and connectors respectively arranged at both ends of the cables 1. A barrier structure is arranged in the middle of the cables 1, and a waterproof rubber plug 2 is integrally formed at the position of the cable 1 corresponding to the barrier structure.

[0021] The cable 1 is composed of a battery core 1A and an insulating layer 1B wrapped around the outside of the battery core 1A. The insulating layer 1B is provided with an isolation area 1C that exposes the battery core 1A to the outside at a position corresponding to the barrier structure. The barrier structure is a conductive solder 3 filled in the isolation area 1C. Figure 5 As shown, the battery core 1A is formed by twisting a plurality of copper wires 11A. The conductive solder 3 in this embodiment is used to fill the gaps between the plurality of copper wires 11A to prevent the penetration of oil and gas.

[0022] The outer side of the barrier structure is wrapped with several layers of heat shrink tubing 4, so as to further improve the waterproof effect of the barrier structure and prevent oil and gas from directly penetrating therefrom.

[0023] The outer sides of several cables 1 are wrapped with protective tape 5. The protective tape 5 is preferably acetate cloth tape. Acetate cloth tape is made of acetate fiber cloth as a base material and coated with acrylic flame retardant adhesive. It has excellent high temperature resistance, solvent resistance, aging resistance, insulation, and flame retardant properties, which is conducive to improving the service life of the cable 1.

[0024] In this embodiment, a sealing rubber plug 6 is sleeved on the middle part of the cable 1, so that when the resolver harness in this embodiment is installed on the external cylinder body, multi-level sealing of the through-cylinder connector is achieved, which can effectively prevent oil and gas from leaking to the outside through the resolver harness.

[0025] Furthermore, a through hole 601 is provided in the middle of the sealing plug 6 for passing the cable 1, and a plurality of sealing protrusions 602 for interference fit with the cable 1 are evenly provided on the inner wall of the through hole 601, thereby improving the sealing performance between the cable 1 and the sealing plug 6 and avoiding oil and gas leakage.

[0026] The utility model sets a barrier structure capable of isolating oil and gas in the middle of the cable 1, so that the oil and gas in the cylinder cannot penetrate to the outside through the battery core 1A inside the rotary transformer harness, and improves the waterproof and airtightness of the barrier structure through the waterproof rubber plug 2, thereby completely isolating the way for oil and gas to penetrate to the outside through the rotary transformer harness, thereby ensuring the service life of the rotary transformer harness.

[0027] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A high-airtight rotational wiring harness, comprising a plurality of cables (1) and connectors respectively arranged at both ends of the cables (1), characterized in that: The cable (1) is provided with a barrier structure in the middle, and a waterproof rubber plug (2) is integrally formed on the cable (1) at a position corresponding to the barrier structure; the cable (1) is composed of a battery core (1A) and an insulating layer (1B) wrapped around the outside of the battery core (1A); the insulating layer (1B) is provided with an isolation area (1C) for exposing the battery core (1A) to the outside at a position corresponding to the barrier structure; the barrier structure is a conductive solder (3) filled in the isolation area (1C); the barrier structure is wrapped with a plurality of layers of heat shrink tubing (4) on the outside, and a plurality of cables (1) are wrapped with protective tape (5) on the outside; the cable (1) is provided with a sealing rubber plug (6) in the middle, and a plurality of through holes (601) are evenly arranged in the middle of the sealing rubber plug (6) for passing through the cable (1), and a plurality of sealing protrusions (602) for interference fit with the cable (1) are evenly arranged on the inner wall of the through hole (601).

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