CN218123544U

CN218123544U - Electric core shell of integrated liquid cooling structure

Info

Publication number: CN218123544U
Application number: CN202221989275.9U
Authority: CN
Inventors: 程胜兵; 黄锋; 姜嫦; 周宸
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-12-23
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses an electricity core casing of integrated liquid cooling structure, including square casing and first apron, square casing includes two long limit curb plates, two minor face curb plates and bottom plates, and the inboard interval certain distance of every long limit curb plate all is provided with a baffle, forms the electric core chamber of square tube-shape between two baffles, and the sealed lid of first apron is established the open-top department in electric core chamber forms the coolant liquid chamber between the long limit curb plate of single baffle and corresponding side, and the top in coolant liquid chamber is provided with the second apron, is provided with inlet and liquid outlet on the second apron. Preferably, the partition board and the square shell are integrally formed by extrusion of aluminum. Through the coolant liquid circulation flow at the coolant liquid intracavity, take away the heat that electric core produced, dispel the heat, realize the integration of liquid cooling structure and square shell, the part quantity of equipment when few square battery is in groups improves production efficiency, the cost of the manufacturing that also significantly reduces.

Description

Electricity core casing of integrated liquid cooling structure

Technical Field

The utility model relates to a lithium cell technical field, concretely relates to electric core shell of integrated liquid cooling structure.

Background

The electric square lithium battery is generally an aluminum-shell or steel-shell square battery, the popularization rate of the square battery is high in China, and the aluminum-shell square battery with higher battery energy density is mainly adopted in the automobile power battery which is popular in recent years because the square battery has a simpler structure and higher energy density. But square battery need solve the heat dissipation problem well, and current square battery is when in groups, generally with great side laminating arrangement each other in groups, place heat conduction silica gel pad or liquid cooling board between two liang and dispel the heat a bit, adopts heat conduction silica gel pad radiating effect to mend gluey, adopts the liquid cooling board to increase the spare part quantity of battery module, leads to manufacturing cost to increase, and the equipment process increases moreover, influences production efficiency, and manufacturing cost is greatly increased also.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide an electric core casing of integrated liquid cooling structure, with the liquid cooling structure integration on electric core casing, reduce square battery unitized part quantity, improve production efficiency, reduce cost.

In order to solve the technical problem, the utility model discloses an electricity core casing of integrated liquid cooling structure, including square casing and first apron, square casing is square tubular structure, including two long limit curb plates, two minor face curb plates and bottom plates, every the inboard interval certain distance of long limit curb plate all is provided with a baffle, two the minor face curb plate with the electric core chamber of the square tube-shape that the bottom plate encloses, electric core and electrolyte are used for depositing in the electric core chamber, the sealed lid of first apron is established the top end opening part in electric core chamber, singly baffle, two the minor face curb plate the bottom plate with correspond the side long limit curb plate encloses into flat coolant liquid chamber, the coolant liquid chamber is used for depositing the coolant liquid, the top in coolant liquid chamber is provided with the second apron, the sealed lid of second apron is established the top end opening part in coolant liquid chamber, be provided with inlet and liquid outlet on the second apron. Preferably, the partition plate and the square shell are integrally formed by extrusion of aluminum.

In the electric core casing of above-mentioned integrated liquid cooling structure, through set up a baffle in square casing's great side inboard, the vacuole formation structure supplies the coolant liquid circulation to flow, takes away the heat that electric core produced, dispels the heat to realize the integration of liquid cooling structure and square casing, baffle and square casing can adopt aluminum product extrusion integrated into one piece, reduce the part quantity of equipment when square battery is in groups, improve production efficiency, the manufacturing cost that also significantly reduces.

As the utility model discloses the improvement of the electric core casing of integrated liquid cooling structure, the inside in coolant liquid chamber is provided with liquid flow channel, makes the coolant liquid is followed the inlet gets into behind the coolant liquid intracavity, along the fixed passage flow direction the liquid outlet. The flow path of the cooling liquid in the cooling liquid cavity is limited through the liquid flow channel, and the liquid flow channel can be designed, so that more heat can be taken away after the cooling liquid passes through the cooling liquid cavity.

Furthermore, the inside in cooling liquid chamber is provided with a plurality of edges the baffle that square shell direction of height arranged, the baffle will the cooling liquid chamber divides into a plurality of independent vertical runners, both sides the runner top respectively with the inlet with the liquid outlet intercommunication, open on baffle top or bottom has the through-hole, the through-hole intercommunication both sides the runner, and adjacent two the baffle the through-hole is not on same one end. The stroke that the coolant liquid flows through from the coolant liquid chamber a single time is increased, and the coolant liquid makes full contact with the baffle and carries out heat exchange, takes away more heat.

In conclusion, the liquid cooling structure is integrated on the battery core shell by adopting the battery core shell with the integrated liquid cooling structure, so that the number of parts for grouping the square battery is reduced, the production efficiency is improved, and the cost is reduced; and the heat dissipation effect on the battery cell is better.

Drawings

In the drawings:

fig. 1 is the overall split structure diagram of the present invention.

Fig. 2 is a structure diagram of the cooling liquid cavity of the present invention.

Fig. 3 is a structural diagram of the first cover plate and the second cover plate of the present invention.

In the figure, 1, a square shell; 11. a long side plate; 12. short side plates; 13. a base plate; 2. a first cover plate; 3. a partition plate; 4. an electrical core cavity; 5. a cooling fluid chamber; 6. a second cover plate; 61. a liquid inlet; 611. a liquid inlet nozzle; 62. a liquid outlet; 621. a liquid outlet nozzle; 7. a baffle plate; 71. a flow channel; 72. and a through hole.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

Fig. 1-3 show the utility model relates to an electricity core casing of integrated liquid cooling structure. As shown in fig. 1, the battery cell casing of this integrated liquid cooling structure includes square casing 1 and first apron 2, square casing 1 is square tubular structure, including two long limit curb plates 11, two minor face curb plates 12 and bottom plate 13, the inboard interval certain distance of every long limit curb plate 11 all is provided with a baffle 3, two baffles 3, the square tubular electric core chamber 4 that two minor face curb plates 12 and bottom plate 13 enclose, electric core chamber 4 is used for depositing electric core and electrolyte, the sealed open-end department at electric core chamber 4 of establishing of first apron 2 lid, single baffle 3, two minor face curb plates 12, bottom plate 13 and the long limit curb plate 11 that corresponds the side enclose into flat coolant liquid chamber 5, coolant liquid chamber 5 is used for depositing the coolant liquid, the top in coolant liquid chamber 5 is provided with second apron 6, the sealed open-end department at coolant liquid chamber 5 of establishing of second apron 6 lid, be provided with inlet 61 and liquid outlet 62 on the second apron 6.

Optionally, the partition plate 3 and the square shell 1 are integrally formed, so that the production cost of the cooling structure is reduced. The top of the liquid inlet 61 is provided with a liquid inlet nozzle 611, and the liquid inlet nozzle 611 is connected with a liquid supply pipeline for injecting cooling liquid into the cooling liquid cavity 5. A liquid outlet nozzle 621 is arranged at the top of the liquid outlet 62, and the liquid outlet nozzle 621 is connected with a liquid outlet pipeline for leading out the cooling liquid in the cooling liquid cavity 5.

When the square battery is used, the long-side plates 11 of the square battery are directly attached in pairs for grouping, other heat dissipation structures are not needed, and grouping production efficiency is improved; then will be in groups inlet 61 and the feed line on the electric core module switch on, when the module needs the heat dissipation in the use, last to each cooling liquid cavity 5 injection coolant liquid, the heat of electric core is taken away to the coolant liquid then flows out from liquid outlet 62, collects back in the liquid pipeline, through cooling back circulation flow to feed line, circulative cooling.

Optionally, a liquid flow channel is disposed inside the cooling liquid cavity 5, so that the cooling liquid flows from the liquid inlet 61 into the cooling liquid cavity 5 and then flows to the liquid outlet 62 along a fixed channel. The flow channel limits the flow path of the cooling liquid in the cooling liquid cavity 5, and the flow channel can be designed to take away more heat after the cooling liquid passes through the cooling liquid cavity 5.

As shown in fig. 2, a plurality of baffles 7 arranged along the height direction of the square housing 1 are arranged inside the cooling liquid cavity 5, the baffles 7 divide the cooling liquid cavity 5 into a plurality of independent vertical flow channels 71, the top ends of the flow channels 71 on both sides are respectively communicated with the liquid inlet 61 and the liquid outlet 62, through holes 72 are formed in the top ends or the bottom ends of the baffles 7, the through holes 72 are communicated with the flow channels 71 on both sides, and the through holes 72 of two adjacent baffles 7 are not located at the same end.

Liquid inlet 61 and liquid outlet 61 are located the both ends of second apron 6 respectively, make the coolant liquid in cooling liquid chamber 5, through upwards, decurrent circuitous flow many times, just can flow from liquid outlet 62, increase the stroke that the coolant liquid flowed from 5 single flows in cooling liquid chamber, make coolant liquid and baffle 3 fully contact carry out heat exchange, take away more heat.

As shown in fig. 3, the top end of the partition plate 3 is flush with the top end face of the square case 1, and the first cover plate 2 and the second cover plate 6 are fixed by welding. The thickness of the partition plate 3 is twice as large as that of the short-side plate 12. A gap is provided between the first cover plate 2 and the second cover plate 6.

The second apron 6 of both sides welding of first apron 2, baffle 3 thickness is thicker, can reserve sufficient space or even clearance between first apron 2 and second apron 6, welds each apron respectively, the welding operation of being convenient for.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope thereof, and although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that: various changes, modifications and equivalents may occur to those skilled in the art upon reading the disclosure, which fall within the scope of the appended claims.

Claims

1. The utility model provides an electricity core casing of integrated liquid cooling structure, its characterized in that, includes square casing (1) and first apron (2), square casing (1) is square tubular structure, including two long limit curb plates (11), two minor face curb plates (12) and bottom plate (13), every the inboard certain distance of interval of long limit curb plate (11) all is provided with a baffle (3), two minor face curb plate (12) and electric core chamber (4) of the square tube-shape that bottom plate (13) enclose, electric core chamber (4) are used for depositing electric core and electrolyte, the sealed lid of first apron (2) is established the top opening part of electric core chamber (4), singly baffle (3), two minor face curb plate (12), bottom plate (13) and corresponding side long limit curb plate (11) enclose into flat cooling liquid chamber (5), cooling liquid chamber (5) are used for depositing the coolant liquid, the top of cooling liquid chamber (5) is provided with second apron (6), sealed lid (6) are established cooling liquid chamber (5) top opening part upper opening part is provided with second inlet (61) and liquid outlet (61).

2. The cell casing of an integrated liquid cooling structure according to claim 1, wherein a liquid flow channel is provided inside the cooling liquid cavity (5), so that the cooling liquid flows from the liquid inlet (61) into the cooling liquid cavity (5) to the liquid outlet (62) along a fixed channel.

3. The electric core shell of the integrated liquid cooling structure according to claim 1 or 2, wherein a plurality of baffles (7) are arranged in the cooling liquid cavity (5) along the height direction of the square shell (1), the baffles (7) divide the cooling liquid cavity (5) into a plurality of independent vertical flow channels (71), the top ends of the flow channels (71) at two sides are respectively communicated with the liquid inlet (61) and the liquid outlet (62), the top end or the bottom end of each baffle (7) is provided with a through hole (72), the through holes (72) are communicated with the flow channels (71) at two sides, and the through holes (72) of two adjacent baffles (7) are not located at the same end.

4. The electric core shell with an integrated liquid cooling structure according to claim 1, wherein the top end of the partition plate (3) is flush with the top end face of the square shell (1), and the first cover plate (2) and the second cover plate (6) are fixed by welding.

5. The cell casing of an integrated liquid-cooled structure according to claim 1 or 4, wherein the thickness of the partition (3) is twice the thickness of the short side plates (12).

6. The cell housing of an integrated liquid-cooled structure according to claim 1 or 4, characterized in that a gap is provided between the first cover plate (2) and the second cover plate (6).

7. The battery core shell with an integrated liquid cooling structure according to claim 1, wherein a liquid inlet nozzle (611) is disposed at a top of the liquid inlet (61), and the liquid inlet nozzle (611) is connected to a liquid supply pipeline for injecting a cooling liquid into the cooling liquid cavity (5).

8. The battery cell casing with an integrated liquid cooling structure according to claim 1, wherein a liquid outlet nozzle (621) is disposed at a top of the liquid outlet (62), and the liquid outlet nozzle (621) is connected to a liquid outlet pipeline for leading out the cooling liquid in the cooling liquid cavity (5).

9. The cell casing of an integrated liquid-cooled structure according to claim 1, wherein the separator (3) is integrally formed with the square casing (1).