CN211404555U

CN211404555U - Battery box integrated with heat management structure

Info

Publication number: CN211404555U
Application number: CN201921681263.8U
Authority: CN
Inventors: 刘旭龙; 卢润泽; 叶国强; 柳卓之
Original assignee: Minth Automotive Technology Research and Development Co Ltd
Current assignee: Shenyang Minneng Auto Parts Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-09-01
Anticipated expiration: 2029-10-09

Abstract

The utility model belongs to the technical field of the new forms of energy battery case, a battery case of integrated heat management structure is provided, including battery case inner panel and battery case planking, integrative die-casting forms the water-cooling runner on the battery case inner panel, the water-cooling runner is arranged all around and on the bottom surface battery case inner panel side, one of them distolateral at the battery case planking on have water outlet and water inlet, water outlet, water inlet communicates with the water-cooling runner each other, the battery case planking is connected with battery case inner panel matched stack, the inboard of battery case planking matches back water-cooling runner with battery case inner panel side and forms closed passage, the terminal surface junction round of battery case inner panel and battery case. The utility model has the advantages of this battery case constitutes the simple structure of water course passageway, and sealed region only adopts threaded connection at battery case export terminal surface, and maintainability is higher, and the planking adopts die casting technology production in this battery case, and it is complicated to solve section bar technology battery case connection scheme, and the problem of difficulty is arranged to the water course.

Description

Battery box integrated with heat management structure

Technical Field

The utility model belongs to the technical field of the new forms of energy battery case, concretely relates to battery case of integrated heat management structure.

Background

The battery box of the electric automobile is mainly produced by adopting an aluminum alloy extrusion process, an extruded single product needs to form an assembly with a stamped part through a welding process, the welding quantity is large in the existing problem, the precision of the assembly product is reduced, the control cost is increased, the manufacturability of the battery box is complex, the size precision is poor, a redundant part can be generated by the extruded process product, the product is not light, meanwhile, due to the limitation of process conditions, a flow channel of the battery box can only keep one direction, and the requirement of the heat dissipation uniformity of the battery box cannot be met.

Disclosure of Invention

The utility model aims to solve the technical problem to the current situation of prior art, and provide one kind and overcome current battery case product reliability low, and processing technology is complicated, processes the battery case of the high integrated heat management structure consuming time.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a battery case of integrated heat management structure, its characterized in that, includes battery case inner panel and battery case planking, the battery case inner panel on integrative die-casting form the water-cooling runner, the water-cooling runner arrange around battery case inner panel side and on the bottom surface, one of them distolateral at the battery case planking has water outlet and interface of intaking, water outlet, interface and water-cooling runner intercommunication each other of intaking, battery case planking and battery case inner panel matched stack, the inboard of battery case planking matches back water-cooling runner with battery case inner panel side and forms closed passage, the terminal surface junction round of battery case inner panel and battery case planking have the sealing area.

In the battery box with the integrated heat management structure, the joint surface angle of the inner box plate and the outer box plate is greater than 0 degree.

In the battery box with the integrated thermal management structure, the sealing area at the connecting part of the ends of the inner plate and the outer plate of the battery box is welded or glued.

In the battery box with the integrated thermal management structure, the water outlet interface and the water inlet interface are in threaded connection with the outer plate of the battery box.

Compared with the prior art, the utility model has the advantages of this battery case constitutes the simple structure of water course passageway, and sealed area only is at battery case export terminal surface, and the connection process beat is consuming time few, and is with low costs, and this battery case provides the water injection well choke mounting point, adopts threaded connection, and maintainability is higher, and the planking adopts die casting technology production in this battery case, and it is complicated to solve section bar technology battery case connection scheme, and the problem of difficulty is arranged to the water course.

Drawings

FIG. 1 is an exploded view of the battery pack of the present integrated thermal management structure;

FIG. 2 is a schematic view of the assembled structure of FIG. 1;

FIG. 3 is another directional structural schematic of FIG. 2 after assembly;

fig. 4 is a schematic cross-sectional view of a battery case of the present integrated thermal management structure.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

In the figure, a battery case inner plate 1; an inner side 1 a; a battery case outer plate 2; side face 2 a; a water-cooled runner 3; a water outlet interface 4; a water inlet interface 5; end face connection 6.

As shown in figures 1 and 2, the battery box of the integrated heat management structure comprises a battery box inner plate 1 and a battery box outer plate 2, a water-cooling flow channel 3 is integrally formed on the battery box inner plate 1 in a die-casting mode, wherein the battery box inner plate 1 and the battery box outer plate 2 are both produced by a die-casting process, the problem that the battery box connecting scheme is complex in a sectional material process and the water-cooling flow channel 3 is difficult to arrange is solved, the water-cooling flow channel 3 is arranged on the periphery and the bottom surface of the side surface 2a of the battery box inner plate 1, the purpose of the water-cooling flow channel 3 is to provide a reasonable channel for cooling liquid, the heat balance of a battery box assembly is ensured, a water outlet port 4 and a water inlet port 5 are arranged on one end side of the battery box outer plate 2, the water outlet port 4 and the water inlet port 5 are in threaded connection with the battery box outer plate 2, the, the sealing area of the end connection part of the battery box inner plate 1 and the battery box outer plate 2 is welded, sealed or glued and sealed, the sealing area is only arranged on the end face of the outlet of the battery box, the time of the connection process is short, and the cost is low.

As shown in fig. 3 and 4, the water outlet 4, the water inlet 5 and the water cooling channel 3 are communicated with each other, the battery box outer plate 2 is connected with the battery box inner plate 1 in a matched manner, the water cooling channel 3 forms a closed channel after the inner side 2a of the battery box outer plate 2 is matched with the side surface 1a of the battery box inner plate 1, the cooling liquid enters the battery box outer plate 2 through the water inlet 5 and flows out through the water outlet 4 after winding the periphery of the battery box, so that the water cooling channel 3 covers the periphery and the bottom surface of the battery, the heat transfer efficiency is high, the distribution is uniform, in addition, the joint surface angle a of the battery box inner plate 1 and the battery box outer plate 2 is larger than 0 degree, the opening of the battery box outer plate 2 is equivalent to be larger than the opening of the battery box inner plate 1, the first aspect is convenient for assembling the battery box inner plate 1 and, ensure the close fitting of the inner and outer side plates.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a battery case of integrated heat management structure, its characterized in that, includes battery case inner panel and battery case planking, the battery case inner panel on integrative die-casting form the water-cooling runner, the water-cooling runner arrange around battery case inner panel side and on the bottom surface, one of them distolateral at the battery case planking has water outlet and interface of intaking, water outlet, interface and water-cooling runner intercommunication each other of intaking, battery case planking and battery case inner panel matched stack, the inboard of battery case planking matches back water-cooling runner with battery case inner panel side and forms closed passage, the terminal surface junction round of battery case inner panel and battery case planking have the sealing area.

2. The battery pack with an integrated thermal management structure according to claim 1, wherein the joint surface angle of the inner battery pack plate and the outer battery pack plate is greater than 0 degree.

3. The battery case of an integrated thermal management structure according to claim 2, wherein the sealing regions at the end joints of the inner case plate and the outer case plate are welded or glued.

4. The battery case of claim 3, wherein the water outlet and water inlet are threadedly coupled to an outer plate of the battery case.