CN213583980U - Battery cell module and battery box - Google Patents

Battery cell module and battery box Download PDF

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Publication number
CN213583980U
CN213583980U CN202022326946.0U CN202022326946U CN213583980U CN 213583980 U CN213583980 U CN 213583980U CN 202022326946 U CN202022326946 U CN 202022326946U CN 213583980 U CN213583980 U CN 213583980U
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China
Prior art keywords
battery
liquid cooling
battery cell
cell module
liquid
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CN202022326946.0U
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Chinese (zh)
Inventor
廖勇
陈郑阳
江有强
唐宏文
张欢
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Eve Power Co Ltd
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Eve Power Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Secondary Cells (AREA)

Abstract

The utility model relates to an electricity core module and battery box, this electricity core module include support, liquid cooling board and a plurality of electric core, and the support is provided with the mounting groove, and a plurality of electric cores set up in the mounting groove along first direction range upon range of, are provided with the silica gel pad between two adjacent electric cores, and a side of a plurality of electric cores all laminates with the liquid cooling board, and the liquid cooling inboard has held the coolant liquid, and the liquid cooling board can exchange heat with electric core. Through range upon range of setting up a plurality of electric cores on the support, be provided with the silica gel pad between two adjacent electric cores, a side and the liquid cooling board of electric core are connected, realize the cooling heat dissipation to electric core through the heat exchange between liquid cooling board and the electric core, have simple structure, the security is high and good heat dissipation's characteristics.

Description

Battery cell module and battery box
Technical Field
The utility model relates to a battery technology field especially relates to an electricity core module and including battery box of this battery module.
Background
The battery box is widely applied to families, communication cabinets, electric automobiles, forklifts and office power supply equipment, and especially the demand of the electric automobiles is huge. The battery box comprises box and a plurality of electric core modules of installing in the box, and electric core module includes that a plurality of square electric cores constitute, is connecting each electric core through the connector assembly to satisfy indexes such as output voltage, power of battery box design. Generally, in order to improve electric automobile's space utilization, assembly such as electric core module, electric core is compact, and then causes the difficult outside derivation of heat that electric core produced when charging and discharging, arouses that electric core temperature is too high, does not utilize the safe handling and the life-span of electric core to continue.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electricity core module and battery box, its compact structure, the radiating effect is good.
To achieve the purpose, the utility model adopts the following technical proposal:
the provided electric core module comprises a support, a liquid cooling plate and a plurality of electric cores, wherein the support is provided with a mounting groove and a plurality of electric cores are stacked in the mounting groove along a first direction, a silica gel pad is arranged between the electric cores and is arranged in the mounting groove, the silica gel pad is arranged between the electric cores, the side face of the electric core is attached to the liquid cooling plate, cooling liquid is contained in the liquid cooling plate, and the liquid cooling plate can exchange heat with the electric cores.
Furthermore, the number of the supports is at least two, the at least two supports are arranged at intervals along a second direction, and the first direction is perpendicular to the second direction.
Further, the bracket comprises a first supporting piece and second supporting pieces vertically arranged at two ends of the first supporting piece, and the mounting groove is formed between the first supporting piece and the second supporting piece.
Furthermore, the battery cell located on the two side faces of the silica gel pad is bonded with the silica gel pad.
Furthermore, the battery cell further comprises a plastic steel belt, and the battery cells are bundled and fixed through the plastic steel belt.
Further, the liquid cooling plate is provided with a flow channel for circulation of cooling liquid, and the cooling liquid can flow along the flow channel in a circulating manner.
Still provide a battery box, include the electricity core module still includes the box, the box has the installation cavity, install at least two in the installation cavity the electricity core module, the electricity core module is including the link bar, the liquid cooling board with the inner wall butt of installation cavity, and make the liquid cooling board can with heat exchange between the box, the one end of box is provided with the front panel, be provided with utmost point post on the front panel, every on the electricity core module the link bar all with utmost point post electricity is connected.
Furthermore, still include battery management module, battery management module set up in electric core module with between the front panel, battery management module respectively with utmost point post with the run-on is connected.
Further, the bracket is connected with the box body through a fastener.
Furthermore, an air duct is arranged on the connecting surface of the box body and the liquid cooling plate.
The utility model discloses compare in prior art's beneficial effect:
the utility model discloses an electricity core module and battery box through range upon range of setting up a plurality of electric cores on the support, is provided with the silica gel pad between two adjacent electric cores, and a side and the liquid cold plate of electric core are connected, realize the cooling heat dissipation to electric core through the heat exchange between liquid cold plate and the electric core, have simple structure, the security is high and good heat dissipation's characteristics.
Drawings
Fig. 1 is an exploded view of a cell module according to an embodiment.
Fig. 2 is an exploded view of the battery case of the embodiment.
Fig. 3 is a cross-sectional view of a liquid-cooled panel of an embodiment.
Fig. 4 is an enlarged view of a portion a in fig. 2.
In the figure:
1. a box body; 11. an ear hanging piece; 12. an air duct; 2. a battery cell module; 20. a support; 201. a first support member; 202. a second support member; 203. a connecting member; 21. a liquid-cooled plate; 210. a flow channel; 211. a flow channel inlet; 212. a flow channel outlet; 22. an electric core; 23. a silica gel pad; 24. a connecting row; 25. an end plate; 26. a side cover plate; 27. plastic steel belts; 3. a battery management module; 4. a front panel; 41. a pole column; 5. a back panel.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
As shown in fig. 1 and fig. 2, the utility model provides a pair of battery cell module 2, including support 20, liquid cooling board 21, run-on 24 and a plurality of electric core 22, wherein, support 20 is used for fixed electric core 22, and support 20 is made for the sheet metal metalwork, and support 20 includes first support piece 201 and two second support pieces 202 with first support piece 201 perpendicular setting, and the one end of two second support pieces 202 is connected with the both ends of first support piece 201 respectively, and the other end of two second support pieces 202 extends to one side that deviates from first support piece 201 to make support 20 be "U" shape. An accommodating groove with an opening at one end is formed between the first support 201 and the second support 202, wherein the X direction is the width direction of the accommodating groove, and the Y direction is the length direction of the accommodating groove. The battery cell 22 is of a cuboid structure, and a positive electrode tab and a negative electrode tab are arranged on one side face of the battery cell 22. The plurality of battery cells 22 are stacked in a first direction, which is the X direction in the drawing. Along first direction, the total length after a plurality of batteries 22 are folded equals the width of holding tank to make a plurality of batteries 22 insert and locate the holding tank, two second support piece 202 respectively with be located the battery 22 butt at both ends, realize support 20 to a plurality of batteries 22 fixed. Preferably, the one end that second support piece 202 deviates from first support piece 201 still is provided with spacing portion, and the one end of spacing portion and the interior wall connection of holding tank, the other end of spacing portion extend to the holding tank is inside, along the depth direction (the Z direction of the drawing) of holding tank, and electric core 22 is located between spacing portion and first support piece 201, and spacing portion is used for restricting electric core 22 along the depth direction motion of holding tank. In a plurality of electric cores 22, be provided with silica gel pad 23 between two adjacent electric cores 22, the both sides face of silica gel pad 23 is provided with the viscose layer, and two adjacent electric cores 22 bond at the both sides face of silica gel pad 23, further make a plurality of electric cores 22 form a whole, improve the installation stability of electric core 22 on support 20. Preferably, the circumference of the silicone rubber pad 23 does not exceed the circumference of the side surface, which is attached to the silicone rubber pad 23, of the battery cell 22, that is, the size of the silicone rubber pad 23 is not greater than the size of the side surface, which is attached to the battery cell 22, of the battery cell 22, so that the silicone rubber pad 23 is prevented from extending out of the outer surfaces of the battery cells 22 and interfering with other installation parts. Meanwhile, the silica gel pad 23 has certain ductility, and when the battery cell 22 bulges in the charging and discharging process, the internal force of the bulge of the battery cell 22 can be released through the compression deformation of the silica gel pad 23. The liquid cooling plate 21 plays a role in heat conduction and heat dissipation, and the liquid cooling plate 21 can exchange heat with the battery cell 22. The liquid cooling plate 21 is of a cavity structure, a containing cavity for containing cooling liquid is arranged in the liquid cooling plate 21, and the cooling liquid can be water, cooling oil or cooling water added with antifreeze. In this example, water was used as the cooling liquid. The liquid cooling plate 21 is made of a metal material with good heat conductivity, and is preferably made of an aluminum plate. A side surface of the plurality of battery cells 22 departing from the first support member 201 abuts against the liquid cooling plate 21, so that heat generated by the plurality of battery cells 22 is transferred to the liquid cooling plate 21. The liquid cooling plate 21 contains water, and the water and the liquid cooling plate 21 exchange heat to transfer heat on the liquid cooling plate 21 to the water, so that the liquid cooling plate 21 is promoted to absorb heat on the battery cell 22, and the cooling and heat dissipation effects on the battery cell 22 are achieved. The connection bar 24 is used for converging current of the plurality of battery cells 22, the connection bar 24 is arranged on one side of the battery cells 22 with the electrode lugs, the connection bar 24 is provided with the wiring terminals, and the positive electrode lug and the negative electrode lug on each battery cell 22 are connected with the corresponding wiring terminals, so that the battery cells 22 are electrically connected with external equipment through the connection bar 24.
Specifically, the battery cell module 2 further includes a plastic steel strip 27, and the plurality of battery cells 22 are fixed by bundling the plastic steel strip 27. In this embodiment, the plastic steel strip 27 is a PET plastic steel strip. Utilize and mould steel band 27 and tie up a plurality of electric cores 22, be favorable to improving the connection stability of a plurality of electric cores 22, it is loose to avoid electric core module 2 to appear when using in the vibrations environment.
Specifically, the battery cell module 2 further includes an end plate 25 and a side cover plate 26, the end plate 25 is disposed at two ends of the battery cell module 2 in the length direction, and the end plate 25 is mounted on the bracket 20 through a fastener. The side cover plates 26 are arranged at two ends of the width direction of the cell module 2, and the side cover plates 26 and the end plates 25 protect the cells 22. It should be noted that the length direction of the cell module 2 is the direction X shown in the drawing, and the width direction of the cell module 2 is the direction Y shown in the drawing.
The battery core module 2 of this embodiment is provided with the silica gel pad 23 between two adjacent battery cores 22 through range upon range of setting a plurality of battery cores 22 on support 20, and a side of battery core 22 is connected with liquid cooling board 21, realizes the cooling heat dissipation to battery core 22 through the heat exchange between liquid cooling board 21 and the battery core 22, has simple structure, the security is high and good heat dissipation's characteristics.
In one embodiment, there are at least two brackets 20, and the at least two brackets 20 are spaced apart along a second direction, and the first direction is perpendicular to the second direction. Preferably, there are two brackets 20, and the two brackets 20 are spaced apart along a second direction, which is the Y direction shown in the figure. The support 20 is used for fixing the battery cell 22, and in order to simplify the structure of the battery cell module 2 and improve the overall stability, the support 20 should be designed to be as light as possible and have higher rigidity so as to avoid deformation in use. Fix electric core 22 through setting up two spaced support 20, connect stability good and reduce the consumptive material, reduce overall weight.
In another embodiment, as shown in fig. 3, the liquid cooling plate 21 is provided with a flow channel 210 for circulating a cooling liquid, and the cooling liquid can circulate along the flow channel 210. It will be appreciated that the provision of the flow channels 210 in the receiving cavity of the liquid cooled plate 21 allows the cooling liquid to flow along the flow channels 210, which facilitates the cooling liquid to be agitated, which facilitates the cooling liquid to quickly absorb heat from the liquid cooled plate 21. The flow channel 210 includes a flow channel inlet 211 and a flow channel outlet 212, and the flow channel inlet 211 and the flow channel outlet 212 are connected to a driving pump for driving the cooling liquid to circulate along the flow channel 210.
Specifically, the flow channel 210 is bent back and forth along the side surface of the liquid cooling plate 21 abutting against the battery cell 22, and the flow channel 210 located in the middle of the liquid cooling plate 21 is close to the flow channel inlet 211, and the flow channel 210 located on the periphery of the liquid cooling plate 21 is close to the flow channel outlet 212. The flow channel inlet 211 and the flow channel outlet 212 are respectively connected to an external cooling device. This structure allows the coolant entering through the flow channel inlet 211 to first reach the middle portion of the liquid-cooled plate 21, to flow from the middle portion toward the peripheral portion along the flow channel 210, and to finally flow out from the flow channel outlet 212. Because the middle part position of liquid cooling board 21 corresponds with the middle part position of a plurality of electric cores 22, the heat that is located the middle part position is difficult for giving off, consequently, makes the coolant liquid among the external cooling equipment at first get into the middle part of liquid cooling board 21 to it is great to make the difference in temperature between them, more does benefit to the coolant liquid and absorbs the heat from the middle part of liquid cooling board 21, and then reduces the heat of a plurality of electric cores 22 middle part positions, promotes the radiating effect.
The remarkable effects of the embodiment are as follows: through range upon range of setting up a plurality of electric cores 22 on support 20, be provided with silica gel pad 23 between two adjacent electric cores 22, a side of electric core 22 is connected with liquid cooling board 21, realizes the cooling heat dissipation to electric core 22 through heat exchange between liquid cooling board 21 and the electric core 22, has simple structure, security height and good heat dissipation's characteristics.
Still provide a battery box, including box 1 and foretell electric core module 2, box 1 has the installation cavity, is provided with two at least electric core modules 2 in the installation cavity, and box 1's one end is provided with front panel 4, is provided with utmost point post 41 on the front panel 4, and utmost point post 41 is connected with 24 electricity of the last connector bar of electric core module 2. In this embodiment, box 1 is the tubular construction, and two at least electric core modules 2 are installed in the installation intracavity to through the opening at front panel 4 and 5 shutoff box 1 both ends of rear panel, make electric core module 2 seal installation in box 1, in order to do benefit to dustproof, waterproof to electric core module 2. The number of the battery cell modules 2 is correspondingly selected according to the design output voltage of the battery box. Two electric core modules 2 are installed to this embodiment, and two electric core modules 2 set up side by side. The bracket 20 is provided with a connecting piece 203, the connecting piece 203 is provided with a connecting hole for penetrating a fastener, and the bracket 20 is fixedly connected with the box body 1 through the fastener. The fasteners may be bolts or screws. The terminals 41 on the front panel 4 include positive terminals and negative terminals, which are connected to the connecting bar 24, so that the plurality of cells 22 are connected to the positive and negative terminals after being converged by the connecting bar 24, thereby outputting electric energy. Box 1 is made for the good aluminum plate of heat conductivity, and the inner wall butt of liquid cold plate 21 and installation cavity on the electric core module 2 to make the heat exchange take place between liquid cold plate 21 and the box 1, heat transfer to box 1 on the liquid cold plate 21, and through box 1 and air heat exchange on every side, realize the heat dissipation.
Specifically, the front panel 4 and the rear panel 5 are plastic plates, preferably made of PPS (polyphenylene sulfide), are integrally formed by injection molding, and have the characteristics of high fire-proof grade and attractive appearance.
Specifically, this battery box still includes battery management module 3, and battery management module 3 sets up between electric core module 2 and front panel 4, and battery management module 3 is connected with utmost point post 41 and connection row 24 electricity respectively. It is understood that the battery management module 3 is used for detecting, processing and transmitting operation data of the battery cell 22, and for protecting charging and discharging of the battery cell 22. The connecting bar 24 on each battery cell module 2 in the box 1 is connected with the battery management module 3, and the current output of all the battery cells 22 is concentrated on the pole 41 on the front panel 4 by the confluence of the battery management module 3.
Specifically, as shown in fig. 4, the connection surface of the tank 1 and the liquid-cooling plate 21 is provided with an air duct 12. In this embodiment, the case 1 is formed by one-step extrusion, and the air duct 12 is formed on the connecting surface between the case 1 and the liquid cooling plate 21 by extrusion. So as to facilitate the air flow and promote the external heat dissipation of the liquid cooling plate 21, thereby improving the heat dissipation effect of the battery cell module 2.
Specifically, the outer wall of the box body 1 is also provided with a plurality of grooves. Through setting up the recess in order to enlarge the surface area of box 1, the increase with the contact surface of surrounding air, promote the radiating efficiency.
Specifically, the box body 1 is further provided with a hanging piece 11, and the hanging piece 11 is used for hanging with external equipment so as to facilitate installation and connection of the battery box and the external equipment.
The remarkable effects of the embodiment are as follows: install in the installation intracavity of box 1 through with at least two electric core modules 2, make liquid cold plate 21 and 1 butt of box, realize liquid cold plate 21 and 1 heat exchange of box, and then enlarged the cooling surface, improved the radiating efficiency.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. The utility model provides an electricity core module, its characterized in that, includes support, liquid cooling board and a plurality of electric core, the support is provided with the mounting groove, and is a plurality of electricity core along first direction range upon range of set up in the mounting groove, adjacent two be provided with the silica gel pad between the electricity core, it is a plurality of a side of electricity core all with the laminating of liquid cooling board, the liquid cooling board holds the coolant liquid, the liquid cooling board can with the electricity core heat exchange.
2. The battery cell module of claim 1, wherein the number of the at least two brackets is at least two, and the at least two brackets are spaced apart along a second direction, and the first direction is perpendicular to the second direction.
3. The battery cell module of claim 2, wherein the bracket comprises a first support member and a second support member vertically disposed at two ends of the first support member, and the mounting groove is formed between the first support member and the second support member.
4. The battery cell module of claim 1, wherein the battery cells located on two side surfaces of the silicone rubber gasket are bonded to the silicone rubber gasket.
5. The battery cell module of claim 1, further comprising a plastic-steel belt, wherein the plurality of battery cells are bound and fixed by the plastic-steel belt.
6. The battery cell module of claim 1, wherein the liquid cooling plate is provided with a flow channel for circulation of a cooling liquid, and the cooling liquid can flow along the flow channel in a circulating manner.
7. A battery box comprises the battery cell module of any one of claims 1 to 6, and is characterized by further comprising a box body, wherein the box body is provided with a mounting cavity, at least two battery cell modules are mounted in the mounting cavity, each battery cell module comprises a connecting bar, the liquid cooling plate is abutted to the inner wall of the mounting cavity and can exchange heat with the box body, one end of the box body is provided with a front panel, the front panel is provided with a pole, and the connecting bar on each battery cell module is electrically connected with the pole.
8. The battery box of claim 7, further comprising a battery management module disposed between the cell module and the front panel, wherein the battery management module is electrically connected to the terminal and the connection bar, respectively.
9. The battery box of claim 7, wherein the bracket is connected to the box body by a fastener.
10. The battery box according to claim 7, characterized in that an air duct is arranged on the connecting surface of the box body and the liquid cooling plate.
CN202022326946.0U 2020-10-19 2020-10-19 Battery cell module and battery box Active CN213583980U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022326946.0U CN213583980U (en) 2020-10-19 2020-10-19 Battery cell module and battery box

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Application Number Priority Date Filing Date Title
CN202022326946.0U CN213583980U (en) 2020-10-19 2020-10-19 Battery cell module and battery box

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CN213583980U true CN213583980U (en) 2021-06-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114267925A (en) * 2021-11-18 2022-04-01 三一重工股份有限公司 Battery box, vehicle and battery box assembling method
CN114312486A (en) * 2021-12-27 2022-04-12 深圳市小樱桃实业有限公司 Explosion-proof power supply for new energy automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114267925A (en) * 2021-11-18 2022-04-01 三一重工股份有限公司 Battery box, vehicle and battery box assembling method
CN114312486A (en) * 2021-12-27 2022-04-12 深圳市小樱桃实业有限公司 Explosion-proof power supply for new energy automobile
CN114312486B (en) * 2021-12-27 2022-09-16 深圳市小樱桃实业有限公司 Explosion-proof power supply for new energy automobile

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