CN215370015U

CN215370015U - Electric automobile expansion tank

Info

Publication number: CN215370015U
Application number: CN202121201577.0U
Authority: CN
Inventors: 陶颖; 王小超; 邹雨; 李浩宇
Original assignee: Chery New Energy Automobile Co Ltd
Current assignee: Chery New Energy Automobile Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-31
Anticipated expiration: 2031-05-31

Abstract

The utility model provides an expansion tank of an electric automobile, which comprises an outer shell, wherein the outer shell is formed by tightly pressing an upper kettle body and a lower kettle body and used for containing cooling liquid, a partition wall is arranged in the outer shell and used for dividing the inner part into at least two expansion units with the function of a complete expansion tank, a water inlet and a water outlet are respectively arranged on each expansion unit, and a pressure cover is arranged at the upper end of the upper kettle body corresponding to each expansion unit. The integrated expansion tank is formed in the scheme, can be used as two expansion tanks, is convenient to arrange and mount, and reduces the use of materials.

Description

Electric automobile expansion tank

Technical Field

The utility model relates to the field of electric automobile accessories, in particular to an integrated expansion tank for an electric automobile.

Background

With the development of new energy vehicles, the improvement of the endurance of the new energy vehicles becomes a key, and the improvement of the endurance is mainly divided into two modes, namely the improvement of the energy density and the volume of a battery, and the other mode of the improvement of the endurance adopts a range extender to enable an internal combustion engine to generate electric energy to supplement the battery. The heat dissipation requirement of the battery with improved energy density is increased, natural cooling or air cooling cannot meet the requirement of the battery with greatly increased energy density gradually, the cooling mode of the automobile battery is gradually developed into water cooling, and the cooling system of the internal combustion engine of the range extender type electric vehicle needs two cooling cycles. Thus, for new energy automobiles, a plurality of cooling cycles are used on the vehicle. The heat dissipation requirements among heat dissipation components in the electric automobile are different, and a battery or a range extender cannot be simply connected in series to the original cooling cycle of the driving motor. This just requires to increase independent cooling cycle to satisfy the demand of battery, must increase the quantity of electric automobile expansion tank, but vehicle front deck space is limited, and a plurality of expansion tanks are difficult to arrange, and the coolant liquid is gaseous in the circulation process entrainment easily simultaneously, will influence the radiating efficiency.

The applicant's prior application chinese patent CN102654078A discloses an "automobile expansion tank", which structurally comprises a main expansion tank and an auxiliary expansion tank, wherein a pressure cover is arranged on the main expansion tank, a pressure vacuum combination valve is arranged on a gas-liquid passage formed between the main expansion tank, the auxiliary expansion tank and a cover cavity of the pressure cover, a gas-liquid phase flows from the auxiliary expansion tank to the auxiliary expansion tank when a pressure valve port of the pressure vacuum combination valve is opened, and a cooling liquid flows from the auxiliary expansion tank to the main expansion tank when a vacuum valve port of the pressure vacuum combination valve is opened. The expansion tank is provided with two chambers, but the two chambers cannot be independently used, the auxiliary expansion tank is used for recovering a cooling liquid-vapor mixture overflowing when the pressure valve is opened, and the vacuum valve is opened to reversely supplement the internal cooling liquid into the main expansion tank under the atmospheric pressure. That is to say it still requires two expansion tanks for a new energy vehicle with two cooling systems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric automobile expansion tank which can meet the use requirements of a plurality of cooling systems.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an electric automobile expansion tank, includes the shell body that holds the coolant liquid that the inseparable pressfitting of the last kettle body and lower kettle body constitutes, is provided with the partition wall in the shell body and separates inside for two at least expansion unit that have complete expansion tank function, is provided with water inlet and delivery port on each expansion unit respectively, and the upper end of the last kettle body that each expansion unit corresponds is provided with the pressure lid.

The integrated expansion tank is formed in the scheme, can be used as two expansion tanks, is convenient to arrange and mount, and reduces the use of materials.

Drawings

FIGS. 1 and 2 are schematic perspective views of the present invention;

fig. 3 is a schematic diagram of the structure inside the box of the utility model.

Detailed Description

An expansion tank of an electric automobile comprises an outer shell 10 which is formed by tightly pressing an upper kettle body 11 and a lower kettle body 12 and used for containing cooling liquid, wherein a partition wall 60 is arranged in the outer shell 10 and used for dividing the interior into at least two expansion units 14 with the function of a complete expansion tank, a water inlet 20 and a water outlet 30 are respectively arranged on each expansion unit 14, and a pressure cover 40 is arranged at the upper end of the upper kettle body 11 corresponding to each expansion unit 14.

The above solution forms an integrated expansion tank, which can be used as a plurality of separate expansion tanks, so that the integrated expansion tank can be applied to a plurality of cooling systems without mutual interference, and a single partition wall 60 can be used as the outer wall of two expansion units 14, thereby reducing material consumption and cost, and being convenient to arrange.

The outer shell 10 is rectangular box-shaped as a whole, and a corner of the rectangular box is a corner edge 15. I.e. a pentagonal box shape as a whole, wherein one side is a corner cut 15.

The expansion units 14 are provided with two water inlets 20, and the water inlets 20 of the two expansion units 14 are arranged at the opposite corners of the upper rectangle of the upper kettle body 11. For conventional extended range electric vehicles, which typically have only two different cooling systems, two expansion units 14 are provided.

The water outlets 30 of the two expansion units 14 are arranged at the lower rectangular side of the lower pot 12, wherein one water outlet 30 is arranged at the corner of the long straight edge 16 and the corner 15, and the other water outlet 30 is arranged at the corner of the long straight edge 16 and the short straight edge 13.

The expansion unit 14 is provided with a partition plate 50 to divide the expansion unit into two chambers, and the partition plate 50 is provided with a through hole 51 communicating the two chambers. The gas in the cooling circulation can be effectively separated through the communication between the chambers.

The outer side of the outer housing 10 is provided with a mounting bracket 70. The installation and the connection are convenient.

The outer shell 10 is made of transparent PP materials, and water level scale marks are further arranged on the outer shell 10. Therefore, the liquid level can be effectively observed by naked eyes, and whether the cooling liquid needs to be supplemented or not can be observed by the naked eyes.

Claims

1. The utility model provides an electric automobile expansion tank, includes that the outer shell (10) that holds the coolant liquid that last kettle body (11) and lower kettle body (12) closely pressfitting constitute, its characterized in that: a partition wall (60) is arranged in the outer shell (10) to divide the interior into at least two expansion units (14) with the function of a complete expansion tank, a water inlet (20) and a water outlet (30) are respectively arranged on each expansion unit (14), and a pressure cover (40) is arranged at the upper end of the upper kettle body (11) corresponding to each expansion unit (14).

2. The electric vehicle expansion tank of claim 1, wherein: the outer shell (10) is integrally rectangular box-shaped, and one corner of the rectangular box is a corner cutting edge (15).

3. The electric vehicle expansion tank of claim 2, wherein: the two expansion units (14) are arranged, and water inlets (20) of the two expansion units (14) are arranged at the diagonal positions of the upper rectangle of the upper pot body (11).

4. The electric vehicle expansion tank of claim 3, wherein: the water outlets (30) of the two expansion units (14) are arranged at the lower rectangular side of the lower pot body (12), wherein one water outlet (30) is arranged at the corner of the long straight edge (16) and the corner cutting edge (15) in a close way, and the other water outlet (30) is arranged at the corner of the long straight edge (16) and the short straight edge (13) in a close way.

5. The electric vehicle expansion tank of claim 3, wherein: a partition plate (50) is arranged in the expansion unit (14) to divide the expansion unit into two chambers, and a through hole (51) for communicating the two chambers is formed in the partition plate (50).

6. The electric vehicle expansion tank of claim 1, wherein: and a mounting bracket (70) is arranged on the outer side of the outer shell (10).

7. The electric vehicle expansion tank of claim 1, wherein: the outer shell (10) is made of transparent PP materials, and water level scale marks are further arranged on the outer shell (10).