CN218414899U

CN218414899U - Power battery pack module with high heat dissipation performance

Info

Publication number: CN218414899U
Application number: CN202222540339.3U
Authority: CN
Inventors: 卢义胜; 赵俊伟; 江森; 李传松
Original assignee: Hefei Zhonghe Power New Energy Technology Co ltd
Current assignee: Hefei Zhonghe Power New Energy Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-31
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a power battery package module of high heat dissipating relates to power battery technical field, which comprises an outer shell, the expansion board is installed to the shell upper end, the expansion board is loop configuration, and extends outside the shell, the fixed outer liquid storage box that has cup jointed of shell surface, the feed liquor pipe is installed to outer liquid storage box left end, the drain pipe is installed to outer liquid storage box right-hand member, outer liquid storage box inner wall fixed mounting has interior liquid storage box, the inner chamber of interior liquid storage box communicates with each other with the inner chamber of outer liquid storage box, interior liquid storage box is located inside the shell, interior liquid storage box is harrow column structure, inside a plurality of electric core, a plurality of electric core all with distribute around the liquid storage box including, the apron is installed to the shell upper end. The utility model discloses a set up the quick heat dissipation that outer liquid storage case and interior liquid storage case realized electric core, and interior liquid storage case still is used for separating electric core, has not only increased the area of contact of interior liquid storage case with electric core, has still improved the stability of electric core.

Description

Power battery pack module with high heat dissipation performance

Technical Field

The utility model relates to a power battery technical field, in particular to power battery package module of high heat dissipating.

Background

The electric core is the minimum unit of the power battery and is also an electric energy storage unit, and the electric core has high energy density to store electric energy as much as possible, so that the electric automobile has longer endurance mileage. In addition, the service life of the battery cell is also the most critical factor, and the damage of any one battery cell can cause the damage of the whole battery pack. When a plurality of electric cores are packaged together by the same shell frame, and contact is carried out with the outside through unified boundary, a module is formed. When several modules are controlled or managed by the BMS and the thermal management system, the unified whole is called a battery pack.

During the charging and discharging processes of the power battery, a certain amount of heat is released along with the violence of the chemical reaction. The negative electrode, the electrolyte and the battery diaphragm inside the power battery are all burnt, and the ignition point of the electrolyte is very low, so that the power battery pack is easy to damage the battery and cause burning accidents if the power battery pack does not perform thermal management work.

Refer to current patent (application number 202011387714.4) and disclose a high heat dissipating power battery, the equal rigid coupling in top of first backup pad and second backup pad has the second box, the equal rigid coupling in one side of first box and second box has annotates the liquid mouth, and the equal rigid coupling in opposite side of first box and second box has the liquid outlet, radiator unit all is installed to power battery's top and bottom, spacing subassembly has been cup jointed to power battery's outside.

Above-mentioned patent realizes power battery's heat dissipation through input cooling water, but power battery can only transmit the heat to the cooling water through top or thermal-arrest strip and the heat-conducting plate of below, and the heat that other parts of power battery produced can't be quick transmits to the cooling water for power battery's whole radiating efficiency is lower.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a power battery package module of high heat dissipating nature can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a power battery package module of high heat dissipating, includes the shell, the expansion board is installed to the shell upper end, the expansion board is loop configuration, and extends outside the shell, the fixed cover of shell surface has connect outer liquid storage tank, the feed liquor pipe is installed to outer liquid storage tank left end, the drain pipe is installed to outer liquid storage tank right-hand member, liquid storage tank in outer liquid storage tank inner wall fixed mounting, the inner chamber of interior liquid storage tank communicates with each other with the inner chamber of outer liquid storage tank, interior liquid storage tank is located inside the shell, interior liquid storage tank is harrow column structure, the inside a plurality of electricity core, a plurality of electricity core all with distribute around the inner liquid storage tank, the apron is installed to the shell upper end.

Preferably, the inner liquid storage tank comprises a plurality of vertical separating parts, the vertical separating parts are arranged and distributed in a linear array, a transverse separating part is fixedly connected between two adjacent vertical separating parts on the left and right sides, and a storage bin is defined by the transverse separating part and the two adjacent vertical separating parts.

Preferably, the battery cell is located in the placing bin, and the size specification of the battery cell is matched with that of the placing bin.

Preferably, the size specification of the vertical partition part is matched with the size specification of the inner cavity of the shell.

Preferably, the lower wall of the inner cavity of the shell and the lower end of the cover plate are both provided with insulating plates.

Preferably, the lower end of the expansion plate is fixedly connected with the upper end of the outer liquid storage tank, and the shape of the expansion plate is matched with that of the outer liquid storage tank.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the rapid heat dissipation of the battery cell is realized by arranging the outer liquid storage box and the inner liquid storage box, firstly, cooling liquid is input through the liquid inlet pipe, the cooling liquid enters the inner liquid storage box through the outer liquid storage box, the inner liquid storage box is in close contact with the battery cell, when the battery cell operates, heat generated by the battery cell is transmitted to the inner liquid storage box and exchanges heat with the cooling liquid in the inner liquid storage box, the rapid heat dissipation of the battery cell is realized, the warmed cooling liquid is discharged through the liquid outlet pipe, meanwhile, the outer liquid storage box wraps the whole shell, and the cooling liquid in the outer liquid storage box exchanges heat with the shell, so that the integral temperature reduction of the battery pack is realized;

2. through setting up interior liquid storage box and being used for separating electric core, not only increased the area of contact of interior liquid storage box with electric core, still improved the stability of electric core, avoid electric core to take place to shift, improved the practicality.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a schematic perspective view of the inner tank;

FIG. 4 is a schematic perspective view of the inner and outer tanks;

fig. 5 is a schematic sectional view showing the inner and outer tanks.

In the figure: 1. a housing; 2. an expansion board; 3. an outer reservoir; 4. a liquid inlet pipe; 5. a liquid outlet pipe; 6. an inner liquid storage tank; 7. an electric core; 8. a cover plate; 61. a vertical partition; 62. a lateral partition; 63. and (6) placing a bin.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, a power battery pack module with high heat dissipation performance includes a housing 1, as a specific embodiment, the housing 1 is a flat rectangular structure in this embodiment, an expansion plate 2 is installed at an upper end of the housing 1, as a specific embodiment, straight corner guiding structures are respectively installed at four corners of the expansion plate 2 in this embodiment, the expansion plate 2 is an annular structure and extends to an outer side of the housing 1, an outer liquid storage tank 3 is fixedly sleeved on an outer surface of the housing 1, as a specific embodiment, the outer liquid storage tank 3 is an annular structure in this embodiment, a liquid inlet pipe 4 is installed at a left end of the outer liquid storage tank 3, a liquid outlet pipe 5 is installed at a right end of the outer liquid storage tank 3, an inner liquid storage tank 6 is fixedly installed on an inner wall of the outer liquid storage tank 3, an inner cavity of the inner liquid storage tank 6 is communicated with an inner cavity of the outer liquid storage tank 3, the inner liquid storage tank 6 is located inside the housing 1, the inner liquid storage tank 6 is a rake-shaped structure, a plurality of cells 7 are arranged inside the housing 1, and a plurality of the cell cover plates 7 are all arranged on the housing 1, and a periphery of the cell cover plate 8.

As shown in fig. 3, 4 and 5, the inner liquid storage tank 6 includes a plurality of vertical partition portions 61, as a specific embodiment, eight vertical partition portions 61 are provided in the present embodiment, the vertical partition portions 61 on two sides are completely attached to the inner wall of the housing 1, the eight vertical partition portions 61 are distributed in a linear array, a horizontal partition portion 62 is fixedly connected between two vertical partition portions 61 adjacent to each other on the left and right, and a total of fourteen placement chambers 63 are provided between the horizontal partition portion 62 and two vertical partition portions 61 adjacent thereto in the present embodiment.

Further, the battery cell 7 is located in the placing bin 63, the size specification of the battery cell 7 matches with the size specification of the placing bin 63, and as a specific implementation manner, heat-conducting silica gel is filled between the battery cell 7 and the placing bin 63 in this embodiment.

Further, the dimension of the vertical partition 61 matches the dimension of the inner cavity of the housing 1.

Furthermore, insulating plates are arranged at the lower end of the inner cavity of the shell 1 and the lower end of the cover plate 8.

Further, the lower end of the expansion plate 2 is fixedly connected with the upper end of the outer liquid storage tank 3, and the shape of the expansion plate 2 is matched with that of the outer liquid storage tank 3.

It should be noted that, the utility model relates to a power battery package module of high heat dissipating, realize the quick heat dissipation of electric core 7 through setting up outer liquid storage tank 3 and inner liquid storage tank 6, at first, import the coolant liquid through feed liquor pipe 4, the coolant liquid gets into inner liquid storage tank 6 through outer liquid storage tank 3, inner liquid storage tank 6 is in close contact with electric core 7, when electric core 7 operates, the heat that its produced transmits to inner liquid storage tank 6, and exchange heat with the coolant liquid inside inner liquid storage tank 6, realize the quick giving off of heat of electric core 7, the coolant liquid after the intensification discharges through drain pipe 5, meanwhile, outer liquid storage tank 3 wraps up whole shell 1, its inside coolant liquid exchanges heat with shell 1, realize the whole cooling of battery package; through setting up interior liquid storage tank 6 and being used for separating electric core 7, not only increased interior liquid storage tank 6 and electric core 7's area of contact, still improved electric core 7's stability, avoid electric core 7 to take place to shift, improved the practicality.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a power battery package module of high heat dissipating, includes shell (1), its characterized in that: expansion board (2) are installed to shell (1) upper end, expansion board (2) are the loop configuration, and extend outside shell (1), shell (1) surface fixing cover has connect outer liquid storage tank (3), feed liquor pipe (4) are installed to outer liquid storage tank (3) left end, drain pipe (5) are installed to outer liquid storage tank (3) right-hand member, liquid storage tank (6) in outer liquid storage tank (3) inner wall fixed mounting, the inner chamber of interior liquid storage tank (6) communicates with each other with the inner chamber of outer liquid storage tank (3), interior liquid storage tank (6) are located inside shell (1), interior liquid storage tank (6) are harrow column structure, shell (1) inside is provided with a plurality of electricity core (7), a plurality of around liquid storage tank (6) including electricity core (7) all with distributing, apron (8) are installed to shell (1) upper end.

2. The power battery pack module with high heat dissipation performance as set forth in claim 1, wherein: the inner liquid storage tank (6) comprises vertical separating parts (61), the vertical separating parts (61) are provided with a plurality of vertical separating parts (61), the vertical separating parts (61) are distributed in a linear array mode, a horizontal separating part (62) is fixedly connected between the two vertical separating parts (61) adjacent to the left and the right, and a storage bin (63) is formed by the horizontal separating part (62) and the two vertical separating parts (61) adjacent to the horizontal separating part in a surrounding mode.

3. The power battery pack module with high heat dissipation performance as set forth in claim 2, wherein: the battery cell (7) is located in the placing bin (63), and the size specification of the battery cell (7) is matched with that of the placing bin (63).

4. The power battery pack module with high heat dissipation performance as set forth in claim 3, wherein: the size of the vertical separating part (61) is matched with the size of the inner cavity of the shell (1).

5. The power battery pack module with high heat dissipation performance as set forth in claim 4, wherein: and insulating plates are arranged at the lower wall of the inner cavity of the shell (1) and the lower end of the cover plate (8).

6. The power battery pack module with high heat dissipation performance as set forth in claim 5, wherein: the lower end of the expansion plate (2) is fixedly connected with the upper end of the outer liquid storage tank (3), and the shape of the expansion plate (2) is matched with that of the outer liquid storage tank (3).