CN218334127U

CN218334127U - Aluminum alloy die-casting storage battery box body structure containing flexible liquid pipeline

Info

Publication number: CN218334127U
Application number: CN202222475204.3U
Authority: CN
Inventors: 龙广鹏; 顾成波
Original assignee: Aisn Innovative Design And Manufacturing Co ltd
Current assignee: Aisn Innovative Design And Manufacturing Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-01-17
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses an aluminum alloy die-casting shaping battery box structure containing flexible liquid pipeline relates to the technical field of machine-building, and the device includes: the battery comprises a box body, a cover plate, a cooling liquid pipe, a water collecting cavity, a water path interface, a battery core mounting beam, separating ribs and heat collecting sheets; a cover plate is welded at the inner bottom of the box body in a friction stir welding mode, a water collecting cavity is formed by a cavity protruding downwards at the bottom of the box body, the water collecting cavity is divided into a plurality of cavities through separating ribs on the inner surface of the cavity of the box body, a cooling liquid pipe penetrates through a hole in the surface of the cover plate to be communicated with the two divided water collecting cavities, a heat collecting sheet is fixed on the cooling liquid pipe and placed in the box body, a plurality of water way interfaces are welded at the side edge of the water collecting cavity by using an argon arc welding process and used for feeding and discharging cooling liquid, and the water collecting cavity is communicated with the cooling liquid pipe and the water way interfaces; the upper surface distribution of apron has electric core installation roof beam, and the electric core passes through the bolt to be installed on electric core installation roof beam, and the thermal-arrest piece pastes in electric core both sides.

Description

Aluminum alloy die-casting storage battery box body structure containing flexible liquid pipeline

Technical Field

The utility model relates to a technical field of machine-building particularly, relates to an aluminum alloy die-casting shaping battery box structure that contains flexible liquid pipeline.

Background

The battery pack assembly is a key part of a new energy automobile, the battery box body is a key bearing part of the battery pack, most of the traditional battery box bodies are formed by welding extruded sections, and the production efficiency is low. Along with the continuous increase of the endurance mileage and the battery control circuit, the heat productivity of the battery pack assembly is also increased, and the problem of heat dissipation inside the assembly can be solved by using cooling liquid. The coolant liquid pipeline of traditional battery package assembly arranges alone, and the structure is fixed relatively and the structure increases, and box assembly fault rate and cost also increase thereupon when can't realize the flexibility and arrange.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: provided is a battery case in which a coolant path can be flexibly arranged.

The technical scheme of the utility model is that: the utility model provides an aluminum alloy die-casting battery box structure that contains flexible liquid pipeline, the device includes: the water collecting device comprises a box body, a cover plate, a cooling liquid pipe, a water collecting cavity and a water channel interface;

the interior bottom welding apron of box, coolant liquid pipe pass the hole on apron surface, and coolant liquid pipe is put inside the box, and the downwardly convex cavity of bottom half forms the chamber that catchments, catchments the side welding water route interface in chamber, catchments the chamber and communicates with each other with coolant liquid pipe and water route interface.

In any of the above technical solutions, further, the apparatus further includes: the separation rib is positioned on the inner surface of the cavity of the box body and divides the water collecting cavity into a plurality of cavities.

In any of the above technical solutions, further, the apparatus further includes: the battery cell comprises a battery cell and a battery cell mounting beam;

the battery cell mounting beams are distributed on the upper surface of the cover plate, and the battery cell is mounted on the battery cell mounting beams through bolts.

The beneficial effects of the utility model are that:

the technical proposal of the utility model integrates the cooling liquid water collection cavity structure on the box body, reduces the number of parts of the battery box body and effectively improves the production efficiency; a plurality of water collecting cavities are formed in the box body, the size and distribution of the cooling pipelines are adjusted according to the cooling capacity requirement, the cooling position and the cooling capacity are accurately controlled, and the cooling flexibility is realized.

Drawings

The above and additional aspects of the invention will be apparent from and readily appreciated by reference to the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic diagram of an aluminum alloy die-cast battery case structure containing flexible liquid lines according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an aluminum alloy die-cast battery case structure including flexible liquid lines according to an embodiment of the present invention;

fig. 3 is a schematic illustration of a cover plate of an aluminum alloy die-cast battery case structure containing flexible liquid lines according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of an aluminum alloy die-cast battery case structure containing flexible liquid lines according to an embodiment of the present invention;

fig. 5 is a schematic diagram of the connection of the cooling liquid pipe and the heat collecting plate of the aluminum alloy die-cast battery box structure containing the flexible liquid pipeline according to an embodiment of the present invention.

The solar cell comprises a box body 1, a cover plate 2, a cooling liquid pipe 3, a water collecting cavity 4, a water path interface 5, a cell 6, a cell mounting beam 7, a separating rib 8 and a heat collecting sheet 9.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

As shown in fig. 1 to 3, the present embodiment provides an aluminum alloy die-cast battery case structure including a flexible liquid pipe, the apparatus including: the battery box comprises a box body 1, a cover plate 2, a cooling liquid pipe 3, a water collecting cavity 4, a water channel interface 5, a battery cell 6, a battery cell mounting beam 7, separating ribs 8 and heat collecting sheets 9.

The interior bottom of box 1 is through friction stir welding's mode welding apron 2, and coolant pipe 3 passes the hole on 2 surfaces of apron, puts in 1 inside boxes, and the downward convex cavity of 1 bottoms of box forms the chamber 4 that catchments, and the chamber 4 that catchments is separated for a plurality of cavitys through the separation rib 8 of 1 cavity internal surface of box, and the side in chamber 4 that catchments uses a plurality of water route interfaces 5 of argon arc welding process welding, and the chamber 4 that catchments communicates with each other with coolant pipe 3 and water route interface 5.

Specifically, as shown in fig. 4, the cooling liquid flows into one water collecting cavity 4 from one water channel connector 5 under the action of an external water pump, is delivered to the other water collecting cavity 4 through the cooling liquid pipe 3, and then flows out from the other water channel connector 5 to cool the inside of the box body 1; simultaneously, the device can change the position of separating rib 8 and easily adjust the size that catchments chamber 4 according to the cooling demand, can also increase the quantity that catchments chamber 4 through the mode that increases separating rib 8, and coolant pipe 3 also adjusts the size and puts the distribution according to the cooling demand of difference in box 1.

A battery cell mounting beam 7 is distributed on the upper surface of the cover plate 2, and a battery cell 6 is mounted on the battery cell mounting beam 7 through a bolt; the cell mounting beam 7 has a local reinforcing effect on the cover plate 2.

As shown in fig. 1 and 5, a plurality of heat collecting plates 9 are fixed on the cooling liquid pipe 3 in a mortise-tenon joint, bonding or welding manner, the heat collecting plates 9 are two aluminum alloy plates, the cooling liquid pipe 3 penetrates through the centers of the heat collecting plates 9, and the heat collecting plates 9 are attached to two sides of the battery cell 6.

The CAE simulation is used for analyzing the effect of the heat collecting plate 9 in the design scheme of the embodiment, and under the condition that the analysis working condition is that the environment temperature is 25 ℃, the air heat exchange coefficient is 5w/m ^2-K, the cooling liquid inlet is 10L/min, and the temperature is 20 ℃, the scheme comprising the heat collecting plate 9 is improved by 0.08 ℃ compared with the scheme not comprising the heat collecting plate 9, the local temperature can be improved by 7 ℃ to the maximum extent, and the average temperature is reduced by 6.35 ℃.

To sum up, the utility model provides an aluminum alloy die-casting shaping battery box structure that contains flexible liquid pipeline, include: the battery box comprises a box body 1, a cover plate 2, a cooling liquid pipe 3, a water collecting cavity 4, a water channel interface 5, a battery cell 6, a battery cell mounting beam 7, separating ribs 8 and heat collecting sheets 9.

The inner bottom of the box body 1 is welded with a cover plate 2 in a friction stir welding mode, a cavity which protrudes downwards at the bottom of the box body 1 forms a water collection cavity 4, the water collection cavity 4 is divided into a plurality of cavities through separating ribs 8 on the inner surface of the cavity of the box body 1, a cooling liquid pipe 3 penetrates through a hole in the surface of the cover plate 2 to be communicated with the two divided water collection cavities 4, a heat collection sheet 9 is fixed on the cooling liquid pipe 3 and is placed in the box body 1, the side edge of the water collection cavity 4 is welded with a plurality of water channel connectors 5 by using an argon arc welding process, cooling liquid enters the water channel connectors 5 under the action of an external water pump, and the water collection cavity 4 is communicated with the cooling liquid pipe 3 and the water channel connectors 5; the upper surface distribution of apron 2 has electric core installation roof beam 7, and electric core 6 passes through the bolt to be installed on electric core installation roof beam 7, and thermal-arrest piece 9 pastes in electric core 6 both sides.

In the present invention, the terms "mounting", "connecting", "fixing" and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The shapes of the various components in the drawings are schematic and do not preclude the existence of certain differences from their true shapes, and the drawings are intended only to illustrate the principles of the present invention and are not intended to limit the invention.

Although the present invention has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and not restrictive of the application of the present invention. The scope of the invention is defined by the appended claims and may include various modifications, adaptations, and equivalents made to the invention without departing from its scope and spirit.

Claims

1. The utility model provides an aluminum alloy die-casting shaping battery box structure that contains flexible liquid pipeline which characterized in that, the device includes: the water-cooling water tank comprises a tank body (1), a cover plate (2), a cooling liquid pipe (3), a water collecting cavity (4) and a water channel connector (5);

the interior bottom welding of box (1) apron (2), coolant liquid pipe (3) pass the hole on apron (2) surface, coolant liquid pipe (3) are in box (1) is inside to be put, the downward convex cavity in box (1) bottom forms chamber (4) catchments, the side welding in chamber (4) catchments water route interface (5), chamber (4) catchments with coolant liquid pipe (3) with water route interface (5) communicate with each other.

2. An aluminum alloy die-cast battery case structure containing flexible liquid lines as defined in claim 1, wherein the apparatus further comprises: the separation rib (8), the separation rib (8) are located box (1) cavity internal surface, separation rib (8) will chamber of catchmenting (4) are separated for a plurality of cavitys.

3. An aluminum alloy die-cast battery case structure containing flexible liquid lines as defined in claim 1, wherein the apparatus further comprises: the battery cell comprises a battery cell (6) and a battery cell mounting beam (7);

the battery cell mounting beams (7) are distributed on the upper surface of the cover plate (2), and the battery cell (6) is mounted on the battery cell mounting beams (7) through bolts.

4. An aluminum alloy die-cast battery case structure containing flexible liquid lines as defined in claim 3, wherein the apparatus further comprises: the battery cell structure comprises a battery cell (6), a heat collection sheet (9), wherein the heat collection sheet (9) is a two-sheet metal plate, the center of the heat collection sheet (9) penetrates through the cooling liquid pipe (3) to be fixed with the cooling liquid pipe, and the heat collection sheet (9) is attached to two sides of the battery cell (6).