CN214542363U

CN214542363U - Power battery heat dissipation device adopting phase-change material

Info

Publication number: CN214542363U
Application number: CN202120530359.5U
Authority: CN
Inventors: 刘庆刚
Original assignee: Hebei University of Science and Technology
Current assignee: Hebei University of Science and Technology
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-10-29
Anticipated expiration: 2031-03-15

Abstract

The utility model relates to a power battery heat dissipation device adopting phase-change materials, which enables the temperature control of batteries to be more stable, and the structure of the power battery heat dissipation device comprises 4 parts of a front-end header, a battery pack, a battery box and a rear-end header; when the cooling device works, cooling liquid sequentially flows through the front-end header outlet chamber, the semicircular tube bundle on one side of the battery box, the rear-end header inlet chamber, the heat exchange tube bundle in the phase-change material box, the rear-end header outlet chamber, the semicircular tube bundle on the other side of the battery box and the front-end header inlet chamber, and then enters the front-end header outlet chamber after being boosted by the circulating pump to complete circulation. The cooling liquid absorbs the heat emitted by the battery pack in the semicircular tube bundles, and then releases heat to the phase change material in the heat exchange tube bundles to complete the heat dissipation process of the battery.

Description

Power battery heat dissipation device adopting phase-change material

Technical Field

The utility model relates to an adopt phase change material's power battery heat abstractor.

Background

With the increasing severity of energy and environmental issues, electric vehicles are receiving more and more attention from automobile manufacturers and automobile consumers. However, the service life of the power battery and the later maintenance cost limit the popularization and development of the electric automobile. During the running process of an automobile, the temperature of the power battery can be greatly increased, the service life of the battery is seriously influenced, and therefore the power battery needs to be cooled, wherein the most commonly adopted cooling mode is air cooling. However, in the air cooling system, the temperature control of the battery pack is not stable enough due to the influence of factors such as the external temperature, so that the performance of the battery is not fully utilized, and the service life of the battery is also influenced.

The utility model relates to an adopt phase change material's power battery heat abstractor utilizes phase change material at the unchangeable characteristic of phase transition in-process temperature, can show the stability that improves the temperature control of battery, improves battery performance and life.

Disclosure of Invention

The technical scheme of the utility model:

in order to solve the problems, the utility model provides a power battery heat dissipation device which adopts phase-change materials; the power battery heat dissipation device is composed of a front end header, a battery box, a battery pack and a rear end header.

Furthermore, the battery box comprises a front end plate, a side plate and a rear end plate, and bolt holes are formed in 4 corners of the upper portion of the battery box and used for connecting and fixing a battery box cover.

Furthermore, a semicircular tube bundle is fixedly arranged outside the battery box side plate, and cooling liquid flows through the semicircular tube bundle to take away heat emitted by the battery pack during vehicle operation.

Furthermore, the front end plate and the rear end plate of the battery box are provided with semicircular holes for communicating the semicircular tube bundle with the front end header and the rear end header.

Furthermore, the front end header is provided with a front end header inlet chamber and a front end header outlet chamber; the front end header inlet chamber and the front end header outlet chamber are provided with a supporting plate therebetween, and the supporting plate is fixedly provided with a circulating pump for conveying cooling liquid.

Furthermore, the rear end header consists of a rear end header inlet chamber, a rear end header outlet chamber, a rear end header end plate and a phase-change material box; a heat exchange tube bundle is arranged in the phase-change material box and is used for communicating the inlet chamber of the rear-end header with the outlet chamber of the rear-end header; and phase change materials are filled around the heat exchange tube bundle and are used for maintaining the temperature of the cooling liquid to be constant.

The utility model has the advantages of adopt phase change material in the unchangeable characteristic of phase transition in-process temperature, the operating temperature that can maintain the group battery is stable, improves the performance and the life of group battery.

Drawings

Fig. 1 is an overall schematic view of a battery heat dissipation device;

FIG. 2 is a schematic view of a battery box;

FIG. 3 is a schematic view of a front end header;

FIG. 4 is a schematic view of a back end header;

FIG. 5 is a schematic view of a phase change material box.

In the figure, 1-rear end header, 2-battery box, 3-battery pack, 4-front end header, 5-rear end plate, 6-side plate, 7-semicircular tube bundle, 8-bottom plate, 9-front end plate, 10-front end header inlet chamber, 11-circulating pump, 12-support plate, 13-front end header outlet chamber, 14-rear end header inlet chamber, 15-phase change material box, 16-rear end header outlet chamber, 17-rear end header end plate and 18-heat exchange tube bundle.

Detailed Description

As shown in the attached figure 1, the utility model consists of a back end header 1, a battery box 2, a battery pack 3 and a front end header 4; the battery 3 is fixed in the battery box 2, and the rear end header 1 and the front end header 4 are respectively arranged at two sides of the battery box 2.

As shown in fig. 2, the battery box 2 is composed of a front end plate 9, a side plate 6, a rear end plate 5 and a bottom plate 8, and bolt holes are arranged at the corners of the upper part 4 of the battery box 2 and used for connecting and fixing a battery box cover; the side plates 6 are arranged on two sides of the battery box 2, and the outer sides of the side plates 6 are fixedly provided with semicircular tube bundles 7; cooling liquid flows through the semi-circular tube bundles 7 and is used for absorbing heat emitted by the battery pack 3 during vehicle operation; the front end plate 9 and the rear end plate 5 are provided with semicircular holes corresponding to the semicircular tube bundles 7 and used for communicating the semicircular tube bundles 7 with the front end header 4 and the rear end header 1.

As shown in fig. 3, the front header 4 is provided with a front header inlet chamber 10 and a front header outlet chamber 13; a supporting plate 12 is arranged between the front end header inlet chamber 10 and the front end header outlet chamber 13, and a circulating pump 11 is fixedly arranged on the supporting plate 12 and used for driving cooling liquid to circularly flow among the front end header 4, the semicircular tube bundle 7 and the rear end header 1.

As shown in fig. 4, the rear header 1 is composed of a rear header inlet chamber 14, a rear header outlet chamber 16, a rear header end plate 17 and a phase change material tank 15; a heat exchange tube bundle 18 is arranged in the phase change material box 15 and is used for communicating the rear end header inlet chamber 14 with the rear end header outlet chamber 16; the heat exchange tube bundle 18 is filled with a phase change material for maintaining the temperature of the cooling liquid constant.

When the cooling device works, under the driving of the circulating pump 11, the cooling liquid enters the semicircular tube bundle 7 on one side of the battery box 2 from the front end header outlet chamber 13 through the semicircular holes arranged on the front end plate 9; the cooling liquid absorbs the heat that group battery 3 gived off in semicircle tube bank 7, the temperature rises and gets into rear end header import room 14 through the semicircle orifice that sets up on rear end plate 5, then get into and set up heat exchange tube bank 18 in phase change material case 15 and the phase change material heat transfer around it and get into rear end header export room 16 after reducing the temperature, and then get into the semicircle tube bank 7 of battery box 2 opposite side through the semicircle orifice that sets up on rear end plate 5, get into front end header import room 10 through the semicircle orifice on front end plate 9 after absorbing group battery 3 gived off the heat, then get into front end header export room 13 and accomplish the heat dissipation circulation of flowing after the circulating pump 11 steps up.

Claims

1. A power battery heat dissipation device adopting phase change materials is characterized by comprising a rear end header (1), a battery box (2), a battery pack (3) and a front end header (4); the battery pack (3) is arranged in the battery box (2), and the front end header (4) and the rear end header (1) are arranged on two sides of the battery box (2).

2. The power battery heat sink using phase change material as claimed in claim 1, wherein said battery box (2) is composed of a front end plate (9), a side plate (6) and a rear end plate (5); curb plate (6) outside be provided with semicircle tube bank (7), front end plate (9) and back end plate (5) on be provided with the semicircle orifice that corresponds with semicircle tube bank (7).

3. The power battery heat sink using phase change material as claimed in claim 1, wherein said front header (4) is composed of a front header inlet chamber (10), a front header outlet chamber (13), a support plate (12) disposed therebetween, and a circulation pump (11) disposed on the support plate (12).

4. The power battery heat sink using phase change material as claimed in claim 1, wherein said back end header (1) is composed of a back end header inlet chamber (14), a back end header outlet chamber (16), a back end header end plate (17) and a phase change material tank (15); a heat exchange tube bundle (18) is arranged in the phase-change material box (15), and phase-change materials are filled around the heat exchange tube bundle (18).