CN210156632U

CN210156632U - Wire harness for electric vehicle with high safety performance

Info

Publication number: CN210156632U
Application number: CN201921353328.6U
Authority: CN
Inventors: 赵福润; 方晓德; 赵世杰
Original assignee: Tianjin Derun Industry And Trade Co Ltd
Current assignee: Tianjin Derun Industry And Trade Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-03-17
Anticipated expiration: 2029-08-20

Abstract

The utility model provides a pencil for electric motor car that security performance is high. The wiring harness for the electric vehicle with high safety performance comprises a plug, a wiring harness mechanism, a connecting mechanism and a sealing mechanism, wherein the wiring harness mechanism is connected to the plug, the wiring harness mechanism comprises a wiring harness body, a wiring terminal body, a slot, an insertion block, a connecting groove, a guide pillar, an annular cavity, carbon dioxide and a sealing plate, the wiring harness body is connected to one end of the wiring terminal body, the slot is formed in the wiring terminal body, the insertion block is fixedly connected to the plug and is inserted into the slot, the connecting groove is formed in the insertion block, the guide pillar is fixedly connected to the slot and is inserted into the connecting groove, and the annular cavity is formed in the wiring terminal body. The utility model provides a pencil for electric motor car that security performance is high has the security performance height, has protected the advantage of user's safety.

Description

Wire harness for electric vehicle with high safety performance

Technical Field

The utility model relates to a pencil technical field especially relates to a pencil for electric motor car that security performance is high.

Background

A group of metal wires and cables are bound together in a wiring harness to carry signals and power supply connection between equipment. Generally, an electric vehicle is a vehicle that uses a battery as an energy source, and converts electric energy into mechanical energy through a controller, a motor and other components to move so as to control the current and change the speed. The communication and power connection of each component in the electric vehicle require a wire harness, and the wire harness performs connection communication on each electrical component.

After a wire harness in a motor is used for a long time, a connecting terminal of the wire harness may be affected with damp or other reasons to cause short circuit and fire at a joint part, and potential safety hazards are caused.

Therefore, it is necessary to provide a new wire harness for an electric vehicle having high safety to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an embodiment of the utility model provides a security performance is high, has protected the pencil for electric motor car that the security performance of user's safety is high.

The utility model provides a pencil for electric motor car that security performance is high includes: a plug; the wiring harness mechanism is connected to the plug and comprises a wiring harness body, a wiring terminal body, a slot, an insertion block, a connecting groove, a guide pillar, an annular cavity, carbon dioxide and a sealing plate, wherein the wiring harness body is connected to one end of the wiring terminal body, the slot is formed in the wiring terminal body, the insertion block is fixedly connected to the plug and is inserted into the slot, the connecting groove is formed in the insertion block, the guide pillar is fixedly connected to the slot and is inserted into the connecting groove, the annular cavity is formed in the wiring terminal body, the carbon dioxide is filled into the annular cavity, and the sealing plate is fixedly connected between the annular cavity and the slot; the connecting mechanism is fixedly connected to the plug; and the sealing mechanism is arranged in the connecting mechanism.

Preferably, the connecting mechanism includes an annular groove and an annular block, the annular groove is opened in the terminal body, and the annular block is fixedly connected to the plug and inserted in the annular groove.

Preferably, sealing mechanism includes annular mounting groove and annular sealing gasket, the annular mounting groove set up in on the outside of annular piece, just the fixed cover of annular sealing gasket is located in the annular mounting groove.

Preferably, the wire harness body comprises a protective sleeve, wire cores, a buffer sleeve, a mounting groove, a steel wire and a woven layer, the protective sleeve is fixedly sleeved on the plurality of wire cores, the buffer sleeve is sleeved on the protective sleeve, the mounting groove is formed in the side wall of the buffer sleeve, the steel wire is mounted in the mounting groove, and the woven layer is sleeved on the outer side wall of the buffer sleeve.

Preferably, the braided layer is formed by braiding precise copper wires and aramid fibers.

Preferably, the outer side wall of the wiring terminal body is provided with anti-skid grains.

Compared with the prior art, the utility model provides a pencil for electric motor car that security performance is high has following beneficial effect:

this device is in the use, and the guide pillar injects the spread groove in, is connected the intercommunication to pencil and electric motor car plug, appears damaging when taking place the circuit short circuit and the fire at the joint portion, and high temperature can damage the closing plate, and a large amount of carbon dioxide in the toroidal cavity escape from damaged closing plate department, put out naked light to the security performance of device has been improved, user's safety has been protected.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a harness for an electric vehicle with high safety performance according to the present invention;

fig. 2 is a schematic top view of the terminal body shown in fig. 1;

fig. 3 is a sectional structure view of the wire harness body shown in fig. 1.

Reference numbers in the figures: 1. the plug, 2, pencil mechanism, 21, pencil body, 211, protective sheath, 212, sinle silk, 213, cushion collar, 214, mounting groove, 215, steel wire, 216, weaving layer, 22, binding post body, 23, slot, 24, inserted block, 25, connecting groove, 26, guide pillar, 27, annular cavity, 28, carbon dioxide, 29, closing plate, 3, coupling mechanism, 31, ring channel, 32, ring block, 4, sealing mechanism, 41, annular mounting groove, 42, annular sealing pad.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a wire harness for an electric vehicle with high safety performance according to a preferred embodiment of the present invention; fig. 2 is a schematic top view of the terminal body shown in fig. 1; fig. 3 is a schematic sectional structure view of the wire harness body shown in fig. 1. A wire harness for an electric vehicle having high safety performance includes: the plug comprises a plug 1, a wire harness mechanism 2, a connecting mechanism 3 and a sealing mechanism 4.

In the specific implementation process, as shown in fig. 1, 2 and 3, the wire harness mechanism 2 is connected to the plug 1, the wire harness mechanism 2 comprises a wire harness body 21, a terminal body 22, a slot 23, an insert block 24, a connecting groove 25, a guide pillar 26, an annular cavity 27, carbon dioxide 28 and a sealing plate 29, the wire harness body 21 is connected to one end of the terminal body 22, the slot 23 is arranged in the terminal body 22, the insert block 24 is fixedly connected to the plug 1 and is inserted into the slot 23, the connecting groove 25 is arranged in the insert block 24, the guide pillar 26 is fixedly connected to the slot 23 and is inserted into the connecting groove 25, the annular cavity 27 is arranged in the terminal body 22, the carbon dioxide 28 is filled into the annular cavity 27, the sealing plate 29 is fixedly connected between the annular cavity 27 and the slot 23, in the device, during the use, the guide pillar 26 is inserted into the connecting groove 25 to connect and communicate the wire harness with the, when the connector part is damaged and a line short circuit occurs to cause fire, the sealing plate 29 is damaged by high temperature, and a large amount of carbon dioxide 28 in the annular cavity 27 escapes from the damaged sealing plate 29 to extinguish the open fire, thereby improving the safety performance of the device.

Referring to fig. 1, the connecting mechanism 3 is fixedly connected to the plug 1, the connecting mechanism 3 includes an annular groove 31 and an annular block 32, the annular groove 31 is opened in the terminal body 22, and the annular block 32 is fixedly connected to the plug 1 and inserted into the annular groove 31, when the terminal body 22 is connected to the plug 1 on the electric vehicle, the annular block 32 is inserted into the annular groove 31 in alignment, and the guide post 26 is inserted into the connecting groove 25 in a compliant manner to perform connection communication between the terminal body 22 and the plug 1.

Referring to fig. 1, the sealing mechanism 4 is provided in the connecting mechanism 3, the sealing mechanism 4 includes an annular mounting groove 41 and an annular sealing gasket 42, the annular mounting groove 41 is provided on the outer side of the annular block 32, and the annular sealing gasket 42 is fixedly sleeved in the annular mounting groove 41, by providing the annular sealing gasket 42, the frictional force between the annular block 32 and the annular groove 31 is improved, the connection stability between the terminal body 22 and the plug 1 is improved, and meanwhile, the annular block 32 and the annular groove 31 are sealed, so that the invasion of rainwater can be prevented, the safety of the joint part is protected, and the service life of the joint part is prolonged.

Referring to fig. 3, the wire harness body 21 includes a protection cover 211, a plurality of wire cores 212, a buffer sleeve 213, a mounting groove 214, a steel wire 215 and a braided layer 216, the protection cover 211 is fixedly sleeved on the plurality of wire cores 212, the buffer sleeve 213 is sleeved on the protection cover 211, the mounting groove 214 is opened on the side wall of the buffer sleeve 213, and the steel wire 215 is installed in the mounting groove 214, the braided layer 216 is sleeved on the outer side wall of the buffer sleeve 213, the wire cores 212 are protected through the protection cover 211, through the buffer sleeve 213, when the wire harness body 21 is impacted and extruded in the outside, the buffer sleeve 213 plays a buffering role, the safety of the wire cores 212 is protected, meanwhile, the tensile property of the wire harness body 21 is improved through the arrangement of the steel wire 215, and the steel wire 215 is.

Referring to fig. 3, the braided layer 216 is formed by braiding a precision copper wire and an aramid wire, so that the wire harness body 21 has a fireproof function and also has good toughness.

Referring to fig. 1, the outer side wall of the terminal body 22 is provided with anti-slip lines, so that the terminal body 22 is connected with the plug 1 conveniently and is not easy to slip by hand.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention can be used in other related technical fields, directly or indirectly, or in the same way as the present invention.

Claims

1. A wire harness for an electric vehicle having high safety performance, comprising:

a plug (1);

the wiring harness mechanism (2) is connected to the plug (1), the wiring harness mechanism (2) comprises a wiring harness body (21), a wiring terminal body (22), an insertion groove (23), an insertion block (24), a connection groove (25), a guide post (26), an annular cavity (27), carbon dioxide (28) and a sealing plate (29), the wiring harness body (21) is connected to one end of the wiring terminal body (22), the insertion groove (23) is formed in the wiring terminal body (22), the insertion block (24) is fixedly connected to the plug (1) and inserted into the insertion groove (23), the connection groove (25) is formed in the insertion block (24), the guide post (26) is fixedly connected to the insertion groove (23) and inserted into the connection groove (25), the annular cavity (27) is formed in the wiring terminal body (22), the carbon dioxide (28) is filled in the annular cavity (27), and the sealing plate (29) is fixedly connected between the annular cavity (27) and the inserting groove (23);

the connecting mechanism (3), the said connecting mechanism (3) is fixedly connected to the said plug (1);

the sealing mechanism (4) is arranged in the connecting mechanism (3).

2. The wire harness for the electric vehicle with high safety according to claim 1, wherein the connecting mechanism (3) includes an annular groove (31) and an annular block (32), the annular groove (31) is opened in the terminal body (22), and the annular block (32) is fixedly connected to the plug (1) and inserted in the annular groove (31).

3. The wire harness for electric vehicle with high safety according to claim 2, wherein the sealing mechanism (4) includes an annular mounting groove (41) and an annular packing (42), the annular mounting groove (41) is opened on the outer side of the annular block (32), and the annular packing (42) is fixedly fitted in the annular mounting groove (41).

4. The wire harness for the electric vehicle with high safety performance according to claim 1, wherein the wire harness body (21) comprises a protective sleeve (211), wire cores (212), a buffer sleeve (213), a mounting groove (214), a steel wire (215) and a woven layer (216), the protective sleeve (211) is fixedly sleeved on the plurality of wire cores (212), the buffer sleeve (213) is sleeved on the protective sleeve (211), the mounting groove (214) is arranged on the side wall of the buffer sleeve (213), the steel wire (215) is mounted in the mounting groove (214), and the woven layer (216) is sleeved on the outer side wall of the buffer sleeve (213).

5. The wire harness for electric vehicle with high safety according to claim 4, wherein the braided layer (216) is braided from fine copper wires and aramid wires.

6. The wire harness for the electric vehicle with high safety according to claim 1, wherein an outer side wall of the terminal body (22) is provided with an anti-slip pattern.