CN209948001U

CN209948001U - Heat dissipation protection device for lithium battery of electric automobile

Info

Publication number: CN209948001U
Application number: CN201920882457.8U
Authority: CN
Inventors: 曹丁
Original assignee: Hebei Zhuoxi New Energy Technology Co Ltd
Current assignee: Hebei Zhuoxi New Energy Technology Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-01-14
Anticipated expiration: 2029-06-12

Abstract

The utility model provides a heat dissipation protection device for an electric automobile lithium battery, which comprises an outer box body, a first spring, a heat dissipation device, a motor, a second spring, a groove, a first bearing rod, a first rotary pressure rod, a box cover, a protective cover, a second rotary pressure rod, a second bearing rod, a lithium battery, an outer box body vent, a box body vent, an exhaust fan, an air guide fan, an outer box body and a box body fixed connection, wherein the bottom of the first spring is fixedly connected with the bottom of the box body, the top of the first spring is fixedly connected with the outer wall at the bottom of the heat dissipation device, the inner wall at the bottom of the heat dissipation device is fixedly connected with the outer wall at the bottom of the groove, the first bearing rod is fixedly connected with the left side and the right side of the inner wall at the upper end of the heat dissipation device, the second rotary pressure rod is movably, the lithium battery has the advantages that the heat dissipation effect of the lithium battery is good, the lithium battery is protected from being damaged, and the service life of the lithium battery is longer.

Description

Heat dissipation protection device for lithium battery of electric automobile

Technical Field

The utility model relates to a lithium cell heat dissipation protection field especially relates to heat dissipation protection device of electric automobile lithium cell.

Background

Lithium batteries are batteries which use lithium metal or lithium alloy as a negative electrode material and use non-aqueous electrolyte solution, and with the development of scientific technology, the lithium batteries become mainstream at present, and the lithium batteries are widely applied to electric automobiles.

Based on above-mentioned description to and combine the equipment discovery among the prior art, current device is poor at the heat dissipation and the protection effect to the lithium cell, and the device is too crude, the utility model provides the high security that the lithium cell used to and increase the life of lithium cell.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a be used for lithium cell heat dissipation protection device to solve the not enough of prior art, and heat dispersion is not enough, and the safeguard measure is not complete and lead to the problem that lithium cell life-span can not reach the expectation time.

The utility model is used for lithium cell heat dissipation protection device's purpose and efficiency are reached by following specific technological means: a heat dissipation protection device for a lithium battery of an electric automobile comprises an outer box body, a first spring, a heat dissipation device, a motor, a second spring, a groove, a first bearing rod, a first rotating pressure rod, a box cover, a protective cover, a second rotating pressure rod, a second bearing rod, the lithium battery, an outer box ventilation opening, a box ventilation opening, an exhaust fan and an air guide fan, wherein the outer box body is fixedly connected with the box body, the bottom of the first spring is fixedly connected to the bottom of the box body, the top of the first spring is fixedly connected to the outer wall of the bottom of the heat dissipation device, the inner wall of the bottom of the heat dissipation device is fixedly connected to the outer wall of the bottom of the groove, the first bearing rod is fixedly connected to the left side and the right side of the inner wall of the upper end of the heat dissipation device, the second rotating pressure rod is movably connected to the left side and the right side of the inner, the bottom of the protective cover is connected to the upper end of the first bearing rod in a clamped mode, the exhaust fan is fixedly connected to a gap formed between the outer wall of the box body and the inner wall of the outer box body, the air guide fan is fixedly connected to a gap formed between the outer wall of the box body and the inner wall of the outer box body, the ventilation opening of the outer box body is fixedly connected to the outer surface wall of the outer box body, the ventilation opening of the box body is fixedly connected to the outer surface wall of the box body, and the motor is fixedly connected to.

Preferably, the left side and the right side of the ventilation opening of the outer box body are both provided with the ventilation opening of the outer box body, the ventilation opening of the outer box body is arranged in the middle of the outer side of the outer box body, and the ventilation opening of the outer box body is fixedly connected with the ventilation opening of the outer box body at the position, corresponding to the wind guide fan, of the box body.

Preferably, the heat dissipation device is filled with heat dissipation materials, such as heat dissipation silicone sheets and other materials with good soft heat dissipation materials.

Preferably, the inside of the protective cover is filled with high-voltage insulating silicone grease.

Preferably, the bottom of the groove is connected with the box body.

Has the advantages that:

(1) the utility model provides a heat dissipation and the protection problem of lithium cell, it is good to have guaranteed the radiating effect of lithium cell, and the protection lithium cell does not receive the damage, makes its life longer, and there is the damping device second spring at first the recess inside of joint lithium cell, and the gap of first spring fixed connection between bottom half and heat abstractor bottom, makes the lithium cell can not receive the physical striking when electric automobile jolts and damages.

(2) The heat dissipation material is filled in the heat dissipation device, the outer box body and the inner box body are provided with the ventilation openings, high-quality heat conduction performance is achieved, the ventilation openings are staggered in an upper structure and a lower structure, water can be prevented from entering the lithium battery, the lithium battery can be effectively protected from being damaged, and the service life of the lithium battery is prolonged.

Drawings

Fig. 1 is a schematic view of the overall front structure of the present invention.

Fig. 2 is a view of the structure of the vent of the outer box of the present invention.

Fig. 3 is a schematic structural view of the ventilation opening of the box body of the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Fig. 5 is an enlarged schematic structural diagram of fig. 1 at B.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1-outer box body, 2-box body, 3-first spring, 4-heat dissipation device, 5-motor, 6-second spring, 7-groove, 8-first bearing rod, 9-first rotary pressure rod, 10-box cover, 11-protective cover, 12-second rotary pressure rod, 13-second bearing rod, 14-lithium battery, 15-outer box body ventilation opening, 16-box body ventilation opening, 17-exhaust fan and 18-air guide fan.

Detailed Description

As shown in figures 1 to 5: a heat dissipation protection device for an electric automobile lithium battery comprises an outer box body 1, a box body 2, a first spring 3, a heat dissipation device 4, a motor 5, a second spring 6, a groove 7, a first bearing rod 8, a first rotating pressure rod 9, a box cover 10, a protective cover 11, a second rotating pressure rod 12, a second bearing rod 13, a lithium battery 14, an outer box ventilation opening 15, a box ventilation opening 16, an exhaust fan 17 and an air guide fan 18, wherein the outer box body 1 is fixedly connected with the box body 2, the bottom of the first spring 3 is fixedly connected with the bottom of the box body 2, the top of the first spring is fixedly connected with the outer wall of the bottom of the heat dissipation device 4, the inner wall of the bottom of the heat dissipation device 4 is fixedly connected with the outer wall of the bottom of the groove 7, the top of the groove 7 is clamped with the lithium battery 14, the first bearing rod 8 is fixedly connected with the left side and the right, the second bearing rod 13 is fixedly connected to the left side and the right side of the inner wall of the upper end of the box body 2, the first rotary compression rod 9 is movably connected to the left side and the right side of the top of the outer box body 1, the bottom of the box cover 10 is connected to the upper end of the second bearing rod in a clamping mode, the bottom of the protective cover 11 is connected to the upper end of the first bearing rod in a clamping mode, the exhaust fan 17 is fixedly connected to the gap formed by the outer wall of the box body 2 and the inner wall of the outer box body, the air guide fan 18 is fixedly connected to the gap formed by the outer wall of the box body 2 and the inner wall of the outer box body, the air vent 15 of the outer box body is fixedly connected to the outer surface wall of the outer box body, the vent 16 of the box body is fixedly connected.

Wherein: outer box vent 15 and the 16 left and right sides of box vent all have, and outer box vent 15 position is at outer box 1 outside middle part, and box vent 16 is at 2 tops of box, and exhaust fan 17 corresponds fixed connection in outer box vent 15 department with wind-guiding fan 18, not only can make lithium cell 14 ventilation heat dispersion good, and the height dislocation vent has still prevented carelessly to make rivers go into lithium cell 14 in, and the heat dissipation is abundant, has also improved practical life.

Wherein: the heat dissipation material is filled in the heat dissipation device 4, and can be a material with good soft heat dissipation material such as a heat dissipation silica gel sheet, so that the heat dissipation effect is sufficient, and the shock absorption protection effect can be achieved.

Wherein: the protective cover 11 is filled with high-voltage insulating silicone grease, which can prevent static electricity from damaging the lithium battery 14 and has a good protective effect.

Wherein: the second spring 6 is fixedly connected with the gap formed by the bottom of the groove 7 and the inner wall of the bottom of the box body 2, when the automobile runs through some sections with relative potholes, the spring at the bottom of the groove 7 plays a role in damping and buffering, the lithium battery is well protected, and the service life is prolonged.

The working principle is as follows: when the car started, motor 5 drove exhaust fan 17 and the rotation of wind-guiding fan 18, let outer box 1 and 2 gas flows, make lithium cell 14 keep a constant temperature, if the inside high temperature of lithium cell, heat abstractor 4 also can be fine derive the heat, then air guide through the fan is aired exhaust, the heat that makes the inside that can be rapid dispels, when the car went the pothole highway section, the second spring 6 of the first spring 3 in bottom and recess 7 bottom can play the cushioning guard action.

Claims

1. The utility model provides a heat dissipation protection device for electric automobile lithium cell, including outer box (1), box (2), first spring (3), heat abstractor (4), motor (5), second spring (6), recess (7), first carrier bar (8), first rotatory depression bar (9), case lid (10), visor (11), the rotatory depression bar of second (12), second carrier bar (13), lithium cell (14), outer box vent (15), box vent (16), exhaust fan (17), wind-guiding fan (18), its characterized in that: the outer box body (1) is fixedly connected with the box body (2), the bottom of the first spring (3) is fixedly connected with the bottom of the box body (2), the top of the first spring is fixedly connected with the outer wall at the bottom of the heat dissipation device (4), the inner wall at the bottom of the heat dissipation device (4) is fixedly connected with the outer wall at the bottom of the groove (7), the top of the groove (7) is clamped with the lithium battery (14), the first bearing rod (8) is fixedly connected with the left side and the right side of the inner wall at the upper end of the heat dissipation device (4), the second rotating compression rod (12) is movably connected with the left side and the right side of the outer wall at the top of the heat dissipation device (4), the second bearing rod (13) is fixedly connected with the left side and the right side of the inner wall at the upper end of the box body (2), the first rotating compression rod (9) is movably connected with the left side and the, exhaust fan (17) fixed connection is in the space department that box (2) outer wall and outer box inner wall formed, wind-guiding fan (18) fixed connection is in the space department that box (2) outer wall and outer box inner wall formed, outer box vent (15) fixed connection is at the outer surface wall of outer box, box vent (16) fixed connection is at the outer surface wall of box, motor (5) fixed connection just is connected with exhaust fan (17), wind-guiding fan (18) in outer box (1) bottom inner wall and box (2) bottom outer wall formation clearance.

2. The heat dissipation protection device for the lithium battery of the electric vehicle as claimed in claim 1, wherein: outer box vent (15) and box vent (16) left and right sides all have, and outer box vent (15) position is in outer box (1) outside middle part, and box vent (16) are at box (2) top, and exhaust fan (17) correspond fixed connection in outer box vent (15) department with wind-guiding fan (18).

3. The heat dissipation protection device for the lithium battery of the electric vehicle as claimed in claim 1, wherein: the heat dissipation device (4) is filled with heat dissipation materials which can be soft heat dissipation materials such as heat dissipation silica gel sheets and the like.

4. The heat dissipation protection device for the lithium battery of the electric vehicle as claimed in claim 1, wherein: and high-voltage insulating silicone grease is filled in the protective cover (11).

5. The heat dissipation protection device for the lithium battery of the electric vehicle as claimed in claim 1, wherein: and a gap formed between the bottom of the groove (7) and the inner wall of the bottom of the box body (2) is fixedly connected with a second spring (6).