CN213660490U

CN213660490U - Battery thermal management test tool

Info

Publication number: CN213660490U
Application number: CN202022267779.7U
Authority: CN
Inventors: 郭红艳; 刘志鑫; 李军
Original assignee: Wanxiang Group Corp; Wanxiang A123 Systems Asia Co Ltd
Current assignee: Wanxiang A123 Systems Asia Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-07-09
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a battery heat management test fixture, including bottom plate and cooling plate, be equipped with the fixed establishment who is used for fixed battery module on the bottom plate, fixed establishment comprises a plurality of mounts, the mount includes the apron of bar, the bolt is installed at the apron both ends, be equipped with the nut on the bolt, the height of apron can be adjusted through the nut, a position for fixed battery module, apply different pressure drops for the battery, in order to satisfy to carry out the heat management test to different types of battery, the coolant liquid runner of module position has been refined, increase heat transfer area, let the coolant liquid in the position that has the heat source fully contact with the heat source, the thermal energy of taking of liquid cooling system has been improved.

Description

Battery thermal management test tool

Technical Field

The utility model relates to a temperature control technical field especially relates to a battery thermal management test fixture.

Background

The thermal management of the battery system is an indispensable link for ensuring the use safety of the battery, prolonging the service life of the battery and improving the performance of the battery system. With the leap-type development of new energy vehicles in recent years, the capacity and size of a battery monomer are gradually increased, the number of batteries contained in a battery system is gradually increased, and high-power operating conditions are gradually increased, so that a serious challenge is brought to the design and optimization of a battery thermal management system, the thermal safety problem of the battery also becomes a research hotspot, and the leap-type development of the new energy vehicles is particularly important for the temperature rise control of the battery and the rationality of a testing tool. The current means trend of controlling the temperature rise of the battery is still a liquid cooling mode, the liquid cooling mode is used for ensuring that the temperature rise of the battery is within a reasonable range, heat exchange is carried out on cooling liquid and the battery through a cooling plate, the trend of the cooling liquid and the design of a flow channel have important influence on the heat exchange capacity. The structural design of the tooling is also a vital matter for the normal heat dissipation of the battery and the correct fixation of the battery. The cooling liquid runner carries out structural design along the locating position of module in the technical scheme at present wholly, does not have the part to optimize, can satisfy the temperature rise requirement of battery, nevertheless does not have further optimization to the cooling effect of battery module.

The invention provides a liquid-cooled thermal management system of a battery pack, which is invented and created in China patent publication No. CN107666024A, published 2018, 2 and 6, and the specific technical scheme of the application is that the heat dissipation efficiency and the temperature equalization efficiency of a battery module are improved through the cooperation of a cold power source, a liquid-cooled tube, a liquid-cooled plate, a heat exchanger, a water tank and cooling liquid. The cooling device has the disadvantages that the structure is complex, the local structure is not optimized, the temperature rise requirement of the battery can be met, and the cooling effect of the battery module is not further optimized.

Disclosure of Invention

The utility model aims to solve the problem that the refrigerated effect of battery module is not good among the prior art battery heat management, through the coolant liquid runner that refines module position, increase heat transfer area lets the coolant liquid fully contact with the heat source in the position that has the heat source, and does not have heat source department and simplify the design, under the same pressure drop requirement, improves taking the heat capacity of liquid cooling system.

The utility model discloses a specific design scheme is a battery thermal management test fixture, including bottom plate and cooling plate, its characterized in that, be equipped with the fixed establishment who is used for fixed battery module on the bottom plate, be equipped with crooked heat dissipation runner on the cooling plate.

Preferably, the fixing device is composed of a plurality of fixing frames, each fixing frame comprises a cover plate, a bolt and a nut, the bolts are fixed at the edge of the bottom plate, and the cover plates are installed on the bolts through the nuts. The height of the cover plate can be adjusted through the bolts and the nuts, the position of the battery is fixed, and different pressure drops are applied to the battery so as to meet the requirement of carrying out thermal management tests on different types of batteries.

Preferably, the cooling plate comprises an upper cooling plate and a lower cooling plate, and the lower cooling plate is attached to the bottom plate. The cooling plate is a core component of the thermal management test tool and is made of an aluminum alloy material, the thickness of the cooling plate is 8mm, and the pipe diameter of the heat dissipation channel is 4 mm.

Preferably, the heat dissipation flow channel comprises a liquid inlet, a liquid outlet, a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet and the liquid outlet are cylindrical, one end of the liquid inlet pipe is communicated with the liquid inlet, the other end of the liquid inlet pipe is communicated with the liquid outlet pipe, and the other end of the liquid outlet pipe is communicated with the liquid outlet.

Preferably, the liquid inlet and the liquid outlet are arranged on the same side, and the liquid inlet pipe and the liquid outlet pipe are both snakelike pipelines. Therefore, the length of the flow channel can be increased as much as possible, the heat dissipation area is increased, and the heat dissipation efficiency is improved. The snakelike heat dissipation runner has increased the coolant liquid area of coverage, lets the coolant liquid fully contact with the heat source in the position that has the heat source, under the same pressure drop requirement, improves the hot ability of taking of liquid cooling system.

Preferably, the liquid outlet pipe and the liquid inlet pipe are mutually nested and arranged along the width direction of the cooling plate. The whole flow direction is the upper and lower flow direction, can carry out the heat transfer more effectively, improves the efficiency of heat transfer.

As preferred, divide into two regions in upper region and lower region with the cooling plate along the cooling plate axis, the drain pipe distributes in upper region, and the feed liquor pipe distributes in lower region, and the drain pipe separates mutually with the feed liquor pipe, and drain pipe and feed liquor pipe are arranged along cooling plate length direction, and the whole flow direction is for controlling the flow direction.

Preferably, the liquid outlet pipe and the liquid inlet pipe are mutually nested and arranged along the width direction of the cooling plate. The overall flow direction is an up-down flow direction.

Preferably, heat insulation cotton is arranged between the bottom plate and the cooling plate. The heat cotton has the characteristics of high temperature resistance, difficult combustion, low heat conductivity coefficient and the like, and the bottom plate and the heat insulation cotton can effectively prevent the external environment from causing great influence on the heat management test and keep the temperature consistency as much as possible.

Preferably, the bottom plate and the cooling plate are provided with fixing holes, so that the device is convenient to mount and dismount.

The utility model has the advantages that: (1) the fixing mechanism is adjusted to fix different types of battery modules with different sizes, and the different types of battery modules can be subjected to thermal management tests; (2) the utility model discloses improve the heat dissipation runner, refine heat source department heat transfer structure, improve the area heat capacity of coolant liquid.

Drawings

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

Fig. 2 is a schematic diagram of the structure of the cooling plate of the present invention.

Fig. 3 is a schematic view of a heat dissipation flow channel according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of a heat dissipation flow channel according to embodiment 2 of the present invention.

Fig. 5 is a schematic view of a heat dissipation flow channel according to embodiment 3 of the present invention.

Wherein: 1. bottom plate, 2, thermal-insulated cotton, 3, apron, 4, bolt, 5, nut, 6, cooling plate, 601, cooling upper plate, 602, cooling lower plate, 701, liquid outlet, 702, inlet, 703, feed liquor pipe, 704, drain pipe, 8, fixed orifices.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The utility model aims at providing a battery thermal management test fixture, as shown in fig. 1, including bottom plate 1 and cooling plate 6, be equipped with the fixed establishment who is used for fixed battery module on the bottom plate 1, fixed establishment comprises a plurality of mounts, and the mount includes the apron 3 of bar, and bolt 4 is installed at 3 both ends of apron, is equipped with nut 5 on the bolt 4, and the height of apron 3 can be adjusted through nut 5 for the position of fixed battery module, applys different pressure drops for the battery, carries out the thermal management test to different types of batteries in order to satisfy. Still be equipped with thermal-insulated cotton 2 between bottom plate 1 and cooling plate 6, thermal-insulated cotton 2 has high temperature resistant, incombustible, characteristics such as coefficient of thermal conductivity is low, and bottom plate 1 and thermal-insulated cotton 2 can prevent effectively that the external environment from causing great influence to the thermal management test, keep the uniformity of temperature as far as possible. The installation is convenient, and the bottom plate 1 and the cooling plate 6 are both provided with fixing holes 8.

As shown in fig. 2, the cooling plate includes an upper cooling plate 601 and a lower cooling plate 602. As shown in fig. 3, the heat dissipation channel includes a liquid inlet 701, a liquid outlet 702, a liquid inlet pipe 703 and a liquid outlet pipe 704, and the liquid inlet 701 and the liquid outlet 702 are disposed on the same side, so as to increase the length of the channel as much as possible, thereby increasing the heat dissipation area and increasing the heat dissipation efficiency. Liquid inlet pipe 703 and drain pipe 704 are snakelike passageway, inlet 702 and liquid outlet 703 are cylindricly, and liquid inlet pipe 703 one end and inlet 702 intercommunication, and the liquid inlet pipe 703 other end and drain pipe 704 intercommunication, and the drain pipe 703 other end and liquid outlet 701 intercommunication, and drain pipe 704 and liquid inlet pipe 703 are nested each other and are arranged along cooling plate 6 width direction together and are increased the coolant liquid area of coverage, let the coolant liquid have the position of heat source fully to contact with the heat source, under the same pressure drop requirement, improve the hot ability of taking of liquid cooling system.

In the specific implementation process, the device is installed and fixed well, the cover plate is lifted to a higher position through a bolt firstly, then the battery module is put into the device, the position of the cover plate 3 is adjusted through the rotary nut 5, the battery module is fixed well, a proper pressure drop is provided for the battery module, the thermal management test of the battery module is started, in the test process, when the temperature of an electric core in the battery module is overhigh, cooling liquid flows into the liquid inlet pipe 703 along the liquid inlet 702, the heat exchange is carried out with the battery module through the cooling plate 6, the heat in the battery module is conducted to the cooling liquid, the cooling liquid at normal temperature is changed into the cooling liquid at high temperature, the cooling liquid at high temperature flows out of the heat dissipation flow channel through the liquid outlet pipe 704 and the liquid outlet 701, the effects of reducing the temperature of the battery module and balancing the temperature of the electric core and the external electric core in the battery, thereby achieving the purpose of managing the temperature of the battery module.

Example 2

The technical solution of embodiment 2 is substantially the same as that of embodiment 1, and is different from the technical solution of embodiment 1 in that, as shown in fig. 4, the cooling plate 6 is divided into an upper region and a lower region along a central axis of the cooling plate 6, the liquid outlet pipe 704 is distributed in the upper region, the liquid inlet pipe 703 is distributed in the lower region, the liquid outlet pipe 704 is separated from the liquid inlet pipe 703, and the liquid outlet pipe 704 and the liquid inlet pipe 703 are arranged along a length direction of the cooling plate 6.

Example 3

The embodiment 3 is substantially the same as the embodiment 1 except that, as shown in fig. 5, the liquid outlet pipe 704 and the liquid inlet pipe 703 are nested in each other and arranged along the width direction of the cooling plate 6.

Claims

1. The utility model provides a battery thermal management test fixture, includes bottom plate (1) and cooling plate (6), its characterized in that, be equipped with the fixed establishment who is used for fixed battery module on bottom plate (1), be equipped with crooked heat dissipation runner on cooling plate (6).

2. The battery thermal management test tool according to claim 1, wherein the fixing mechanism is composed of a plurality of fixing frames, each fixing frame comprises a strip-shaped cover plate (3), bolts (4) are respectively installed at two ends of each cover plate (3), nuts (5) for fixing the positions of the cover plates are installed on the bolts (4), and the other ends of the bolts (4) are fixed on the base plate (1).

3. The tooling for testing the thermal management of the battery according to claim 1, wherein the cooling plate (6) comprises an upper cooling plate (601) and a lower cooling plate (602), and the lower cooling plate (602) is attached to the base plate (1).

4. The battery thermal management test tool according to claim 1, wherein the heat dissipation flow channel comprises a liquid inlet (702), a liquid outlet (701), a liquid inlet pipe (703) and a liquid outlet pipe (704), the liquid inlet (702) and the liquid outlet (701) are cylindrical, one end of the liquid inlet pipe (703) is communicated with the liquid inlet (702), the other end of the liquid inlet pipe (703) is communicated with the liquid outlet pipe (704), and the other end of the liquid outlet pipe (704) is communicated with the liquid outlet (701).

5. The tool according to claim 4, wherein the liquid inlet (702) and the liquid outlet (701) are arranged on the same side, and the liquid inlet pipe (703) and the liquid outlet pipe (704) are both serpentine pipes.

6. The battery thermal management test tool according to claim 5, wherein the liquid outlet pipe (704) and the liquid inlet pipe (703) are nested with each other and arranged along the width direction of the cooling plate (6).

7. The battery thermal management test tool according to claim 5, wherein the cooling plate (6) is divided into an upper area and a lower area along a central axis of the cooling plate (6), the liquid outlet pipes (704) are distributed in the upper area, the liquid inlet pipes (703) are distributed in the lower area, the liquid outlet pipes (704) are separated from the liquid inlet pipes (703), and the liquid outlet pipes (704) and the liquid inlet pipes (703) are arranged along the length direction of the cooling plate (6).

8. The battery thermal management test tool according to claim 1, wherein heat insulation cotton (2) is further arranged between the bottom plate (1) and the cooling plate (6).

9. The battery thermal management test tool according to claim 1, wherein fixing holes (8) are formed in the base plate (1) and the cooling plate (6).