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CN119029398B - New energy power automobile group battery cooling device - Google Patents

New energy power automobile group battery cooling device Download PDF

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Publication number
CN119029398B
CN119029398B CN202411476793.4A CN202411476793A CN119029398B CN 119029398 B CN119029398 B CN 119029398B CN 202411476793 A CN202411476793 A CN 202411476793A CN 119029398 B CN119029398 B CN 119029398B
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China
Prior art keywords
groups
battery
liquid cooling
battery pack
cylinder
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Application number
CN202411476793.4A
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Chinese (zh)
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CN119029398A (en
Inventor
李小菊
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Baotou Vocational and Technical College
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Baotou Vocational and Technical College
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Priority to CN202411476793.4A priority Critical patent/CN119029398B/en
Publication of CN119029398A publication Critical patent/CN119029398A/en
Application granted granted Critical
Publication of CN119029398B publication Critical patent/CN119029398B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)

Abstract

本发明涉及电池冷却技术领域，公开了一种新能源动力汽车电池组冷却装置，包括电池组外壳，所述电池组外壳两端靠近下侧位置均固定设置有安装条，所述电池组外壳内侧固定设置有电池隔断架，所述电池隔断架的内侧安装若干组电池块，所述电池组外壳内侧底部与两端均设置有主冷却组件，所述电池隔断架与若干组电池块上端设置有若干组副冷却组件，所述主冷却组件包括设置在电池组外壳内侧底部电池隔断架间隔之间的若干组液冷板一。本发明所述的一种新能源动力汽车电池组冷却装置，通过整体的配合使用，实现冷却液进出端切换，对冷却液进出端温度差异改善，以及两组导流壳上设置的若干组散热片对吸热后的冷却液冷却。

The present invention relates to the field of battery cooling technology, and discloses a battery pack cooling device for a new energy power vehicle, comprising a battery pack housing, both ends of the battery pack housing are fixedly provided with mounting bars near the lower side, a battery partition frame is fixedly provided on the inner side of the battery pack housing, a plurality of battery blocks are installed on the inner side of the battery partition frame, a main cooling assembly is provided on the inner bottom and both ends of the battery pack housing, a plurality of auxiliary cooling assemblies are provided on the battery partition frame and the upper ends of the plurality of battery blocks, and the main cooling assembly comprises a plurality of liquid cooling plates provided between the battery partition frame intervals at the inner bottom of the battery pack housing. The battery pack cooling device for a new energy power vehicle described in the present invention realizes the switching of the coolant inlet and outlet ends through the coordinated use of the whole, improves the temperature difference of the coolant inlet and outlet ends, and a plurality of heat sinks provided on the two groups of guide shells cool the coolant after absorbing heat.

Description

New energy power automobile group battery cooling device
Technical Field
The invention relates to the technical field of battery cooling, in particular to a new energy power automobile battery pack cooling device.
Background
‌ The new energy automobile power battery pack mainly comprises an electric core, a module, a battery pack, a Battery Management System (BMS) and auxiliary components. And the battery pack can generate heat in the discharging and charging process, and a plurality of single batteries are piled together to cause heat accumulation, so that the performance and the service life of the batteries are influenced. In the traditional battery pack, cooling treatment is realized by using a whole liquid cooling plate, when cooling liquid in the liquid cooling plate flows from one end of a pipeline to the other end, the cooling liquid firstly enters from one end of the pipeline, the temperature is low, heat generated by a battery can be effectively absorbed, the heat carried by the cooling liquid is continuously increased along with the flowing of the cooling liquid, the temperature is gradually increased, and when the cooling liquid flows to the other end of the pipeline, the temperature of the cooling liquid is increased, the heat absorbing effect is reduced compared with that of a local battery at the liquid outlet side, and the heat absorbing effect of the local battery at the liquid outlet side is poor.
Disclosure of Invention
The invention mainly aims to provide a new energy power automobile battery pack cooling device which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a new energy power automobile battery cooling device, includes the battery shell, battery shell both ends are close to the downside position and all are fixedly provided with the installation strip, battery shell inboard is fixedly provided with the battery cuts off the frame, the inboard of battery cuts off the frame installs a plurality of groups of battery piece, battery shell inboard bottom and both ends all are provided with main cooling module, battery cuts off frame and a plurality of groups of battery piece upper end and is provided with a plurality of groups of auxiliary cooling module, main cooling module is including setting up a plurality of groups liquid cooling board one between battery shell inboard bottom battery cuts off the frame interval, the inboard of liquid cooling board one is provided with two groups of circulation tank one, the fixed locating plate that is provided with of liquid cooling board one, one side of liquid cooling board one corresponds four groups of circulation tank one interface position and all fixed mounting have the location water pipe, four groups the one end of location water pipe is fixedly provided with the drum, four groups of connectors are fixedly arranged on the upper side and the lower side of the cylinder, guide shells are respectively arranged on the upper side and the lower side of the cylinder, a plurality of groups of cooling fins are fixedly arranged inside one side of the guide shells, which is opposite to each other, the front ends of the cooling fins are fixedly provided with liquid cooling pipes, the inner side of the cylinder is close to the middle and is provided with connecting rods, the front ends and the rear ends of the connecting rods are fixedly provided with a first switching head, the inner side of the first switching head is provided with a first guide groove, the front end of the first switching head is fixedly provided with a first toothed ring, the inner side of the cylinder is fixedly provided with a cross, the cross is rotationally provided with four groups of gears, the front sides of the four groups of gears are movably provided with a second toothed ring, the front ends of the second toothed ring are fixedly provided with a second switching head, the inner side of the second switching head is provided with a second guide groove, the upper end of the mounting strip is fixedly provided with a motor corresponding to the position of the second switching head.
Preferably, the auxiliary cooling assembly comprises a plurality of groups of fixing bolts, wherein the fixing bolts are arranged at the upper end of the battery partition frame and close to the middle position, pushing blocks are fixedly arranged on the outer sides of the fixing bolts, fixing nails are fixedly arranged at the upper end of the battery partition frame and close to the two sides of the fixing bolts, loop bars are sleeved on the outer sides of the fixing nails, movable ports are formed in the inner sides of the loop bars, a liquid cooling plate II is fixedly arranged at one end of the loop bars, protruding blocks are fixedly arranged at the middle arc-shaped inner wall positions of the liquid cooling plate II, fixing blocks are fixedly arranged at the upper ends of the liquid cooling plate II, springs are fixedly arranged between the fixing blocks, circulation grooves II are fixedly arranged at the inner sides of the liquid cooling plate II, and two groups of connecting pipes are fixedly arranged at the opening positions of the liquid cooling plate II, corresponding to the circulation grooves II.
Preferably, two sets of two-phase backs of liquid cooling board one end is corresponding battery piece positive and negative pole ear position and all is fixed and is provided with two sets of mounts, two sets of one side of mount is all fixed and is provided with the sliding sleeve, two sets of the inboard slip of sliding sleeve is provided with the conducting strip, the one end of conducting strip is fixed and is provided with two sets of gum covers, two sets of the inboard of gum cover is all fixed and is provided with two sets of honeycomb ducts, the positive and negative pole ear outside of upper end of battery piece is all fixed and is provided with solid fixed ring, gu fixed one side that gu fixed ring upper end kept away from the conducting strip is fixed and is provided with two sets of guide holders, gu fixed ring upper end is close to one side of conducting strip and is fixed and be provided with L type seat.
Preferably, the locating plate is fixedly arranged on the inner side of the battery pack shell, the locating water pipe is communicated with the first circulating groove and the inside of the cylinder, the two switching heads in the cylinders are fixedly connected through round rods, one group of the lower sides of the two groups of the diversion shells is fixedly connected with the four groups of connectors arranged on the lower sides of the cylinders and communicated with the inside, and the two groups of the liquid cooling pipes are connected with an external cooling liquid pump.
Preferably, the first switching head, the second switching head and the cylinder are arranged in a rotating way, one side and the upper side opening of the first diversion trench correspond to the middle two groups of the four groups of positioning water pipes and the connecting heads respectively, the four groups of gears are meshed with the two groups of toothed rings respectively, one side and the lower side opening of the second diversion trench correspond to the other two groups of the four groups of positioning water pipes and the connecting heads respectively, and the motor rotating shaft is fixedly connected with the second switching head at the front side.
Preferably, the lower side of the pushing block is arranged between two groups of protruding blocks, the fixing nails and the loop bar are arranged in a sliding mode, and the two groups of liquid cooling plates II are arranged in a mirror symmetry mode.
Preferably, the upper sides of the four groups of connecting pipes penetrate through the battery pack shell and are fixedly connected with a circulation groove II in a liquid cooling plate II, and the middle two groups of the four groups of connecting pipes are connected with two groups of diversion shells on two sides respectively.
Preferably, the distance between the two groups of fixing frames is larger than the diameter of the lug of the battery block, the heat conducting sheet is made of elastic metal material, and the two groups of guide pipes are fixedly connected with the liquid cooling plate II and communicated with the internal circulation groove II.
Compared with the prior art, the invention has the following beneficial effects:
The cooling liquid is pumped by an external cooling liquid pump and enters the upper diversion shell from the upper liquid cooling pipe, the cooling liquid is respectively led into the inner sides of the two groups of switching heads in the cylinder by the upper diversion shell and the connector, is respectively led into the middle two groups of the four groups of positioning water-passing pipes by the corresponding two groups of diversion grooves, enters the circulation groove I arranged on the inner side of the liquid cooling plate I, is discharged into the diversion groove II arranged on the inner side of the two groups of switching heads from inside to outside in the circulation groove I, and is discharged into the two groups of connectors and the lower diversion shell communicated with the lower side from the other group of liquid cooling pipes to outside, so that the whole circulation flow process of the cooling liquid is realized, and meanwhile, the traditional liquid cooling plate I is divided into a plurality of plates, the internal circulation flow distance is reduced, the temperature difference of the cooling liquid when one end enters the discharge is avoided, and the plurality of groups of liquid cooling plates I are enabled to cool the battery block better.
The switching head II connected through the motor drive rotates in a ninety-degree positive and negative intermittent mode, and when the switching head II rotates clockwise, the switching head I can be driven to rotate anticlockwise through the meshing arrangement of the gears, two side openings of the two groups of diversion trenches II can be kept to be connected with one side positioning water through pipes and simultaneously are switched to be communicated with two groups of connectors on the upper side, the opening of the lower side connector is shielded, the diversion trench I on the switching head I is kept to be connected with one side positioning water through pipes and simultaneously is disconnected with the two groups of connectors on the upper side, the corresponding two groups of connectors on the lower side are connected, at the moment, the entering cooling liquid is guided into the circulating groove I in the liquid cooling plate I through the two groups of diversion trenches II and the positioning water through pipes, the switching of the cooling liquid is realized from outside to inside, the switching of the inlet and outlet modes of the cooling liquid is realized through the intermittent drive of the motor, and the improvement of the temperature difference of the inlet and outlet modes of the cooling liquid is better, and the cooling liquid after heat absorption is cooled by the plurality of groups of cooling fins arranged on the diversion shells.
The pushing block is driven by the rotary fixing bolt to be fixed at the upper end of the battery partition frame, the rotary pushing block can push the convex blocks on two sides and the liquid cooling plates II to slide outwards along the two groups of fixing nails, the spring is stretched, the liquid cooling plates II can push the heat conducting fin to be close to the position of the battery block lug, heat emitted by the lug is absorbed, and when the battery is dismounted, the fixing bolt is reversely rotated, the spring can pull the two groups of liquid cooling plates II together, and shielding in mounting or dismounting of the battery block is avoided.
When the second liquid cooling plate pushes the heat conducting fin to the battery block lug close, the second liquid cooling plate can be contacted with the L-shaped seat firstly, the heat conducting fin can be bent to be arc-shaped, two ends of the heat conducting fin which continuously move can be guided by the two groups of guide seats to surround the outer side of the lug, the heat conducting fin is better close to the lug for heat absorption, the heat conducting fin is matched with the connection of four groups of connecting pipes, cooling liquid enters the second liquid cooling plate and the guide pipe through the guide shell, heat absorption and cooling treatment are respectively carried out on the upper side space of the battery block through the second liquid cooling plate, and a plurality of groups of heat conducting fins are matched with the cooling liquid inside the guide pipe for heat absorption of the lug which is most serious in heating of the battery block, so that the whole battery block has better cooling effect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the partial internal structure of the present invention;
FIG. 3 is a schematic view of a main cooling assembly of the present invention;
FIG. 4 is a partially expanded schematic illustration of a primary cooling assembly of the present invention;
FIG. 5 is a schematic view of the internal structure of a portion of the main cooling assembly of the present invention;
FIG. 6 is a schematic diagram of a partially expanded configuration of a main cooling assembly according to the present invention;
FIG. 7 is a schematic view of a secondary cooling assembly of the present invention;
FIG. 8 is an enlarged schematic view of the portion A of FIG. 2 according to the present invention;
FIG. 9 is a schematic view of a sub-cooling assembly of the present invention in partial cross-section;
fig. 10 is a schematic view showing a partial structure of the sub-cooling assembly of the present invention.
1, A battery pack housing; 2, mounting bar, 3, battery partition frame, 4, battery block, 5, main cooling component, 51, first liquid cooling plate, 52, first circulating slot, 53, positioning plate, 54, positioning water pipe, 55, cylinder, 56, connector, 57, guide shell, 58, cooling fin, 59, liquid cooling pipe, 510, connecting rod, 511, first switching head, 512, first guiding slot, 513, first toothed ring, 514, cross, 515, gear, 516, second toothed ring, 517, second switching head, 518, second guiding slot, 519, motor, 6, auxiliary cooling component, 61, fixing bolt, 62, pushing block, 63, fixing nail, 64, sleeve rod, 65, movable port, 66, second liquid cooling plate, 67, protruding block, 68, fixing block, 69, spring, 610, second circulating slot, 611, connecting pipe, 612, fixing rack, 613, sliding sleeve, 614, heat conducting fin, 615, glue sleeve, 616, 617, fixing ring, 618, guide seat 619, L-shaped seat.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships in which the present invention is expressed or positional relationships, merely for convenience in describing and simplifying the description, and do not indicate or imply that the apparatus or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-10, an embodiment of the present invention is provided: the battery pack cooling device of the new energy power automobile comprises a battery pack shell 1, wherein mounting strips 2 are fixedly arranged at the positions, close to the lower side, of the two ends of the battery pack shell 1, a battery partition frame 3 is fixedly arranged at the inner side of the battery pack shell 1, a plurality of battery blocks 4 are arranged at the inner side of the battery partition frame 3, main cooling components 5 are arranged at the bottom and the two ends of the inner side of the battery pack shell 1, a plurality of auxiliary cooling components 6 are arranged at the upper ends of the battery partition frame 3 and the plurality of battery blocks 4, the main cooling components 5 comprise a plurality of first liquid cooling plates 51 arranged between the intervals of the battery partition frame 3 at the bottom of the inner side of the battery pack shell 1, two first circulating grooves 52 are arranged at the inner side of the first liquid cooling plates 51, positioning plates 53 are fixedly arranged at the positions corresponding to the interfaces of the first four circulating grooves 52 of the first liquid cooling plates 51, the cylinder 55 is fixedly arranged at one end of the four groups of positioning water-passing pipes 54, the four groups of connectors 56 are fixedly arranged at the upper side and the lower side of the cylinder 55, the guide shells 57 are respectively arranged at the upper side and the lower side of the cylinder 55, a plurality of groups of cooling fins 58 are fixedly arranged at the inner parts of one sides of the two groups of guide shells 57 which are opposite to each other, the liquid cooling pipes 59 are fixedly arranged at the front ends of the two groups of cooling fins 58, the connecting rod 510 is arranged at the inner sides of the cylinder 55 close to the middle, the switching heads 511 are fixedly arranged at the front ends and the rear ends of the two groups of connecting rods 510, the first diversion groove 512 is arranged at the inner sides of the switching heads 511, the toothed ring 513 is fixedly arranged at the front ends of the switching heads 511, the cross 514 is fixedly arranged at the inner sides of the cylinder 55 close to the toothed ring 513, the four groups of gears 515 are rotatably arranged on the cross 514, the toothed ring 516 are movably arranged at the front sides of the four groups of gears 515, the front end of the gear ring II 516 is fixedly provided with a switching head II 517, the inner side of the switching head II 517 is provided with a diversion trench II 518, and the upper end of the mounting bar 2 is fixedly provided with a motor 519 corresponding to the position of the switching head II 517.
The locating plate 53 is fixedly installed on the inner side of the battery pack shell 1, the locating water-passing pipe 54 is communicated with the first circulating groove 52 and the inside of the cylinder 55, the second switching heads 517 in the plurality of groups of cylinders 55 are fixedly connected with each other through round rods, one group of lower sides of the two groups of guide shells 57 is fixedly connected with the other two groups of connectors 56 arranged on the lower sides of the cylinders 55 and are internally communicated with each other, the two groups of liquid cooling pipes 59 are connected with an external cooling liquid pump, the first switching head 511 and the second switching head 517 are rotatably arranged with the cylinders 55, one side and the upper side opening of the two groups of guide grooves 512 are respectively corresponding to the middle two groups of the four groups of locating water-passing pipes 54 and the connectors 56, the four groups of gears 515 are respectively meshed with the two groups of toothed rings 516, one side and the lower side opening of the two groups of guide grooves 518 are respectively corresponding to the four groups of locating water-passing pipes 54 and the other two groups of connectors 56, and the rotating shaft of the motor 519 is fixedly connected with the second switching heads 517 on the front side.
The cooling liquid is pumped by an external cooling liquid pump and enters an upper diversion shell 57 from an upper side liquid cooling pipe 59, the cooling liquid is respectively led into the inner sides of two groups of switching heads 511 in a cylinder 55 by the upper diversion shell 57 and a connector 56, is respectively led into two middle groups of four groups of positioning water-passing pipes 54 by two corresponding groups of diversion grooves 512, enters a circulating groove 52 arranged on the inner side of a liquid cooling plate I51, is discharged into a diversion groove II 518 arranged on the inner side of two groups of switching heads II 517 from inside to outside in the circulating groove I52, enters two groups of connectors 56 communicated with the lower side and the lower diversion shell 57, is discharged to outside by the other group of liquid cooling pipes 59, realizes the integral circulation flow process of the cooling liquid, separates the traditional liquid cooling plate I51 into a plurality of plates, reduces the internal circulation flow distance, avoids the temperature difference of the cooling liquid when one end enters the discharge, and enables the plurality of groups of liquid cooling plates I51 to cool the battery block 4 better; the switching head II 517 is driven by the motor 519 to rotate in a ninety-degree positive and negative intermittent manner, when the switching head II 517 rotates clockwise, the switching head I511 is driven to rotate anticlockwise by the meshing arrangement of the gear 515, the openings on two sides of the two groups of guide grooves II 518 are kept connected with the one-side positioning water through pipe 54 and are switched to be communicated with the two groups of connectors 56 on the upper side, the openings of the lower-side connectors 56 are blocked, the guide grooves I512 on the switching head I511 are kept connected with the one-side positioning water through pipe 54 and are disconnected with the two groups of connectors 56 on the upper side and are correspondingly connected with the two groups of connectors 56 on the lower side, at the moment, the entering cooling liquid is guided into the circulating groove I52 in the liquid cooling plate I51 through the two groups of guide grooves II 518 and the positioning water through pipe 54, the cooling liquid moves inwards from outside, the cooling liquid inlet and outlet switching is realized, the intermittent driving of the motor 519 is used for realizing the cooling liquid inlet and outlet switching, the temperature difference between the cooling liquid inlet and outlet ends is better improved, and the cooling liquid after heat absorption is radiated and cooled by the plurality of groups of cooling fins 58 arranged on the two groups of flow guide shells 57.
The auxiliary cooling component 6 comprises a plurality of groups of fixing bolts 61 which are arranged at the upper end of the battery partition frame 3 and close to the middle position in a threaded manner, push blocks 62 are fixedly arranged at the outer sides of the fixing bolts 61, fixing nails 63 are fixedly arranged at the two sides of the upper end of the battery partition frame 3 close to the fixing bolts 61, loop bars 64 are sleeved at the outer sides of the two groups of fixing nails 63, movable ports 65 are formed at the inner sides of the loop bars 64, a liquid cooling plate II 66 is fixedly arranged at one end of the loop bars 64, protruding blocks 67 are fixedly arranged at the middle arc-shaped inner wall positions of the liquid cooling plate II 66, fixing blocks 68 are fixedly arranged at the upper ends of the two groups of liquid cooling plates II 66, springs 69 are fixedly arranged between the two groups of fixing blocks 68, circulating grooves II 610 are formed at the inner sides of the two groups of liquid cooling plates II 66, two groups of connecting pipes 611 are fixedly arranged at the opening positions of one ends of the two groups of liquid cooling plates 66 corresponding to the second circulating grooves 610, two groups of fixing frames 612 are fixedly arranged at the positions of the opposite ends of the two groups of liquid cooling plates 66 corresponding to the positive and negative lugs of the battery block 4, sliding sleeves 613 are fixedly arranged at one sides of the two groups of fixing frames 612, heat conducting fins 614 are slidably arranged at the inner sides of the two groups of sliding sleeves 613, two groups of rubber sleeves 615 are fixedly arranged at one ends of the heat conducting fins 614, two groups of guide pipes 616 are fixedly arranged at the inner sides of the two groups of rubber sleeves 615, fixing rings 617 are fixedly arranged at the outer sides of the positive and negative lugs of the upper end of the battery block 4, two groups of guide seats 618 are fixedly arranged at one side, far away from the heat conducting fins 614, of the upper ends of the fixing rings 617, and L-shaped seats 619 are fixedly arranged at one side, close to the heat conducting fins 614.
The lower side of the push block 62 is arranged between two groups of protruding blocks 67, the fixing nails 63 and the loop bars 64 are arranged in a sliding way, the two groups of liquid cooling plates II 66 are arranged in a mirror symmetry way, the upper sides of the four groups of connecting pipes 611 penetrate through the battery pack shell 1 and are fixedly connected with the circulation groove II 610 in the liquid cooling plates II 66, the middle two groups of the four groups of connecting pipes 611 are connected with the two groups of two guide shells 57 on two sides respectively, the distance between the two groups of fixing frames 612 is larger than the diameter of the lugs of the battery block 4, the heat conducting sheets 614 are made of elastic metal materials, and the two groups of guide pipes 616 are fixedly connected with the liquid cooling plates II 66 and are communicated with the internal circulation groove II 610.
The pushing block 62 is driven to be fixed at the upper end of the battery partition frame 3 through the rotation fixing bolt 61, the rotating pushing block 62 pushes the protruding blocks 67 and the liquid cooling plates 66 at two sides to slide outwards along the two groups of fixing nails 63, the spring 69 is stretched, meanwhile, the liquid cooling plates 66 push the heat conducting plates 614 to be close to the positions of the lugs of the battery block 4, heat emitted by the lugs is absorbed, when the battery is detached, the fixing bolt 61 is reversely rotated, the spring 69 pulls the two groups of liquid cooling plates 66 together, the installation or detachment of the battery block 4 is avoided, when the liquid cooling plates 66 push the heat conducting plates 614 to be close to the lugs of the battery block 4, the heat conducting plates 614 are contacted with the L-shaped seat 619 firstly, the heat conducting plates 614 are bent into an arc shape, two ends of the heat conducting plates 614 are continuously moved, the two groups of the heat conducting plates 618 are guided to surround the outer sides of the lugs by the two groups of the guide seats 618, the heat conducting plates are better to be close to the heat absorbing work, cooling liquid is matched with the connection of the four groups of connecting pipes 611, and enters the liquid cooling plates 66 and 616, the space on the upper side of the battery block 4 is respectively pulled close to each other through the liquid cooling plates 66, the heat absorbing plates are prevented from being blocked by the liquid cooling plates 66, and the heat absorbing effect of the whole cooling liquid is better to absorb heat of the lugs of the battery block 4, and the heat is better cooled by the heat absorbing heat of the whole cooling liquid and the whole cooling liquid is matched with the heat absorbing plate 4.
The working principle is that when in use, the cooling liquid is pumped by an external cooling liquid pump and enters the upper diversion shell 57 from the upper liquid cooling pipe 59, and the cooling liquid is respectively led by the upper diversion shell 57, The connectors 56 are led into the inner sides of the two groups of switching heads 511 in the cylinder 55, are respectively led into the middle two groups of the four groups of positioning water-passing pipes 54 through the corresponding two groups of flow-guiding grooves 512, enter the circulating groove 52 arranged on the inner side of the liquid cooling plate I51, and are discharged into the flow-guiding grooves 518 arranged on the inner side of the two groups of switching heads II 517 from inside to outside in the circulating groove I52, then enter the two groups of connectors 56 and the lower flow-guiding shell 57 which are communicated with each other on the lower side, and are discharged from the other group of liquid cooling pipes 59 to outside, so that the whole circulation flow process of the cooling liquid is realized, and meanwhile, the traditional liquid cooling plate I51 is divided into a plurality of plates, the internal circulation flow distance is reduced, the temperature difference of the cooling liquid when one end enters the discharge is avoided, and the plurality of groups of liquid cooling plates I51 are enabled to perform cooling work on the battery block 4 better; the second switching head 517 is driven by the motor 519 to rotate intermittently in ninety degrees, and when the second switching head 517 rotates clockwise, the first switching head 511 is driven to rotate anticlockwise by the meshing arrangement of the gear 515, the openings on the two sides of the second two sets of guide grooves 518 are kept connected with the one-side positioning water through pipe 54 and are switched to be communicated with the two upper sets of connectors 56, the openings of the lower connectors 56 are blocked, the first guide groove 512 on the first switching head 511 is kept connected with the one-side positioning water through pipe 54 and is disconnected with the two upper sets of connectors 56, the corresponding lower two sets of connectors 56 are connected, and at the moment, the entering cooling liquid passes through the two sets of guide grooves 518, The positioning water pipe 54 is led into the circulation tank one 52 in the liquid cooling plate one 51, the cooling liquid is switched from outside to inside, the switching of the inlet and outlet ends of the cooling liquid is realized by the intermittent driving of the motor 519, the switching of the inlet and outlet modes of the cooling liquid is realized, the improvement of the temperature difference of the inlet and outlet ends of the cooling liquid is better, and the heat dissipation and cooling of the cooling liquid after heat absorption are carried out by the plurality of groups of heat dissipation fins 58 arranged on the two groups of diversion shells 57 The second liquid cooling plate 66 slides outwards along the two groups of fixing nails 63 to stretch the spring 69, meanwhile, the second liquid cooling plate 66 pushes the heat conducting plate 614 to be close to the position of the lug of the battery block 4 to absorb heat emitted by the lug, when the battery is dismounted subsequently, the fixing bolt 61 is reversely rotated, the spring 69 pulls the two groups of the second liquid cooling plate 66 together to avoid shielding the installation or dismounting of the battery block 4, when the second liquid cooling plate 66 pushes the heat conducting plate 614 to be close to the lug of the battery block 4, the second liquid cooling plate 66 contacts with the L-shaped seat 619 firstly, the heat conducting plate 614 is bent into an arc shape, two ends of the continuously moving heat conducting plate 614 are guided by the two groups of guide seats 618 to surround the outer side of the lug, heat absorbing work is performed better to be close to the lug, and cooling liquid enters the second liquid cooling plate 66 through the guide shell 57 in cooperation with the connection of the four groups of connecting pipes 611, in the flow guide tube 616, the upper side space of the battery block 4 is subjected to heat absorption and temperature reduction treatment through the liquid cooling plate II 66 respectively, and the plurality of groups of heat conduction fins 614 are matched with cooling liquid in the flow guide tube 616 to absorb heat of the most serious electrode lugs of the battery block 4, so that the whole battery block 4 has a better cooling effect.
The battery block 4, the positive and negative lugs of the battery block 4 and the motor 519 in the invention belong to common knowledge in the field, the working principle is a known technology, and the model of the battery block is selected to be proper according to actual use, so the battery block is not explained in detail.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1.一种新能源动力汽车电池组冷却装置，包括电池组外壳（1），其特征在于：所述电池组外壳（1）两端靠近下侧位置均固定设置有安装条（2），所述电池组外壳（1）内侧固定设置有电池隔断架（3），所述电池隔断架（3）的内侧安装若干组电池块（4），所述电池组外壳（1）内侧底部与两端均设置有主冷却组件（5），所述电池隔断架（3）与若干组电池块（4）上端设置有若干组副冷却组件（6），所述主冷却组件（5）包括设置在电池组外壳（1）内侧底部电池隔断架（3）间隔之间的若干组液冷板一（51），所述液冷板一（51）的内侧设置有两组循环槽一（52），所述液冷板一（51）的固定设置有定位板（53），所述液冷板一（51）的一侧对应两组循环槽一（52）接口位置均固定安装有定位通水管（54），四组所述定位通水管（54）的一端固定设置有圆筒（55），所述圆筒（55）的上下侧均固定设置有四组连接头（56），所述圆筒（55）上下侧分别设置有导流壳（57），两组所述导流壳（57）相背的一侧内部均固定设置有若干组散热片（58），两组所述散热片（58）的前端均固定安装有液冷管（59），所述圆筒（55）的内侧靠近中间设置有连接棒（510），所述连接棒（510）的前后端均固定设置有切换头一（511），所述切换头一（511）的内侧开设有导流槽一（512），所述切换头一（511）的前端固定设置有齿环一（513），所述圆筒（55）的内侧靠近齿环一（513）的前侧固定设置有十字架（514），所述十字架（514）上转动设置有四组齿轮（515），四组所述齿轮（515）的前侧活动设置有齿环二（516），所述齿环二（516）的前端固定设置有切换头二（517），所述切换头二（517）的内侧开设有导流槽二（518），所述安装条（2）的上端对应切换头二（517）的位置固定设置有电机（519）；1. A battery pack cooling device for a new energy vehicle, comprising a battery pack housing (1), characterized in that: mounting bars (2) are fixedly arranged at both ends of the battery pack housing (1) near the lower side, a battery partition frame (3) is fixedly arranged inside the battery pack housing (1), a plurality of battery blocks (4) are installed inside the battery partition frame (3), a main cooling assembly (5) is arranged at the bottom and both ends of the inner side of the battery pack housing (1), a plurality of auxiliary cooling assemblies (6) are arranged above the battery partition frame (3) and the plurality of battery blocks (4), and the main cooling assembly ( 5) comprises a plurality of groups of liquid cooling plates (51) arranged between the battery partition frame (3) at the bottom of the inner side of the battery pack housing (1), two groups of circulation grooves (52) are arranged on the inner side of the liquid cooling plate (51), a positioning plate (53) is fixedly arranged on the liquid cooling plate (51), and positioning water pipes (54) are fixedly installed at the interface positions of the two groups of circulation grooves (52) on one side of the liquid cooling plate (51), a cylinder (55) is fixedly arranged at one end of the four groups of positioning water pipes (54), and four groups of connectors (55) are fixedly arranged on the upper and lower sides of the cylinder (55). 6), the cylinder (55) is provided with a guide shell (57) on the upper and lower sides respectively, a plurality of groups of heat sinks (58) are fixedly provided inside the two groups of the guide shells (57) on the opposite sides, and a liquid cooling tube (59) is fixedly installed at the front ends of the two groups of the heat sinks (58), a connecting rod (510) is provided near the middle of the inner side of the cylinder (55), and a switching head (511) is fixedly provided at the front and rear ends of the connecting rod (510), a guide groove (512) is provided on the inner side of the switching head (511), and a liquid cooling tube (59) is fixedly provided at the front end of the switching head (511). A gear ring 1 (513), a cross (514) is fixedly provided on the inner side of the cylinder (55) near the front side of the gear ring 1 (513), four groups of gears (515) are rotatably provided on the cross (514), a gear ring 2 (516) is movably provided on the front side of the four groups of gears (515), a switching head 2 (517) is fixedly provided at the front end of the gear ring 2 (516), a guide groove 2 (518) is provided on the inner side of the switching head 2 (517), and a motor (519) is fixedly provided at the upper end of the mounting bar (2) at a position corresponding to the switching head 2 (517); 所述副冷却组件（6）包括螺纹设置在电池隔断架（3）上端靠近中间位置的若干组固定栓（61），所述固定栓（61）的外侧固定设置有推块（62），所述电池隔断架（3）的上端靠近固定栓（61）两侧均固定设置有固定钉（63），两组所述固定钉（63）的外侧均套有套杆（64），所述套杆（64）的内侧均开设有活动口（65），所述套杆（64）的一端固定设置有液冷板二（66），所述液冷板二（66）的中间弧形内壁位置固定设置有凸块（67），两组所述液冷板二（66）的上端均固定设置有固定块（68），两组所述固定块（68）之间固定设置有弹簧（69），两组所述液冷板二（66）的内侧均开设有循环槽二（610），两组所述液冷板二（66）的一端对应循环槽二（610）的开口位置均固定设置有两组连接管（611）；The auxiliary cooling assembly (6) comprises a plurality of groups of fixing bolts (61) threadedly arranged at the upper end of the battery partition frame (3) near the middle position, a push block (62) is fixedly arranged on the outer side of the fixing bolt (61), and fixing nails (63) are fixedly arranged on both sides of the upper end of the battery partition frame (3) near the fixing bolt (61), and sleeve rods (64) are sleeved on the outer sides of the two groups of fixing nails (63), and the inner sides of the sleeve rods (64) are provided with movable openings (65), and one end of the sleeve rod (64) is fixedly provided with Liquid cooling plate 2 (66), a protrusion (67) is fixedly provided at the middle arc-shaped inner wall position of the liquid cooling plate 2 (66), a fixing block (68) is fixedly provided at the upper end of the two groups of liquid cooling plates 2 (66), a spring (69) is fixedly provided between the two groups of fixing blocks (68), a circulation groove 2 (610) is opened on the inner side of the two groups of liquid cooling plates 2 (66), and two groups of connecting pipes (611) are fixedly provided at one end of the two groups of liquid cooling plates 2 (66) corresponding to the opening position of the circulation groove 2 (610); 两组所述液冷板二（66）相背一端对应电池块（4）正负极耳位置均固定设置有两组固定架（612），两组所述固定架（612）的一侧均固定设置有滑套（613），两组所述滑套（613）的内侧滑动设置有导热片（614），所述导热片（614）的一端固定设置有两组胶套（615），两组所述胶套（615）的内侧均固定设置有两组导流管（616），所述电池块（4）的上端正负极耳外侧均固定设置有固定环（617），所述固定环（617）上端远离导热片（614）的一侧固定设置有两组导向座（618），所述固定环（617）上端靠近导热片（614）的一侧固定设置有L型座（619）；Two groups of fixing frames (612) are fixedly arranged at opposite ends of the two groups of liquid cooling plates (66) corresponding to the positions of the positive and negative pole ears of the battery block (4); a sliding sleeve (613) is fixedly arranged on one side of the two groups of fixing frames (612); a heat conducting sheet (614) is slidably arranged on the inner side of the two groups of sliding sleeves (613); two groups of rubber sleeves (615) are fixedly arranged on one end of the heat conducting sheet (614); two groups of flow guide tubes (616) are fixedly arranged on the inner side of the two groups of rubber sleeves (615); a fixing ring (617) is fixedly arranged on the outer side of the positive and negative pole ears at the upper end of the battery block (4); two groups of guide seats (618) are fixedly arranged on the side of the upper end of the fixing ring (617) away from the heat conducting sheet (614); and an L-shaped seat (619) is fixedly arranged on the side of the upper end of the fixing ring (617) close to the heat conducting sheet (614); 所述定位板（53）与电池组外壳（1）的内侧固定安装，所述定位通水管（54）与循环槽一（52）、圆筒（55）的内部相通，若干组所述圆筒（55）中的切换头二（517）相互之间通过圆杆固定连接，两组所述导流壳（57）中下侧一组与圆筒（55）下侧设置的四组连接头（56）固定连接且内部相通，两组所述液冷管（59）与外接冷却液泵连接；The positioning plate (53) is fixedly installed on the inner side of the battery pack housing (1); the positioning water pipe (54) is connected to the circulation tank 1 (52) and the inside of the cylinder (55); a plurality of groups of switch heads 2 (517) in the cylinder (55) are fixedly connected to each other via round rods; one group on the lower side of the two groups of guide shells (57) is fixedly connected to four groups of connectors (56) arranged on the lower side of the cylinder (55) and the insides are connected; and the two groups of liquid cooling pipes (59) are connected to an external coolant pump; 所述切换头一（511）、切换头二（517）与圆筒（55）为转动设置，两组所述导流槽一（512）的一侧与上侧开口分别与四组定位通水管（54）、连接头（56）的中间两组对应，四组所述齿轮（515）分别与两组齿环二（516）啮合设置，两组所述导流槽二（518）的一侧与下侧开口分别与四组定位通水管（54）、连接头（56）的另外两组对应，所述电机（519）转动轴与前侧的切换头二（517）固定连接；The switching head 1 (511), the switching head 2 (517) and the cylinder (55) are rotatably arranged; one side and the upper opening of the two groups of the guide groove 1 (512) correspond to the middle two groups of the four groups of positioning water pipes (54) and the connecting head (56); the four groups of the gears (515) are meshed with the two groups of the gear ring 2 (516); one side and the lower opening of the two groups of the guide groove 2 (518) correspond to the other two groups of the four groups of positioning water pipes (54) and the connecting head (56); the rotating shaft of the motor (519) is fixedly connected to the switching head 2 (517) on the front side; 上侧导流壳（57）散热片（58）前端的液冷管（59）和圆筒（55）上侧的四组连接头（56）连通作为进水口,下侧导流壳（57）散热片（58）前端的液冷管（59）和圆筒（55）下侧的四组连接头（56）连通作为出水口；The liquid cooling tube (59) at the front end of the heat sink (58) of the upper guide shell (57) and the four groups of connectors (56) on the upper side of the cylinder (55) are connected to serve as a water inlet, and the liquid cooling tube (59) at the front end of the heat sink (58) of the lower guide shell (57) and the four groups of connectors (56) on the lower side of the cylinder (55) are connected to serve as a water outlet; 切换头一（511）的导流槽一（512）具有一侧和上侧的两个开口，切换头二（511）的导流槽二（518）具有一侧和下侧的两个开口；The guide groove 1 (512) of the switching head 1 (511) has two openings on one side and the upper side, and the guide groove 2 (518) of the switching head 2 (511) has two openings on one side and the lower side; 导流槽一（512）的一侧开口与中间两组的定位通水管（54）对应连通、导流槽一（512）的上侧开口与圆筒（55）上侧的中间两组的连接头（54）对应连通，导流槽二（518）的一侧开口与两侧两组的定位通水管（54）对应连通、导流槽二（518）的下侧开口与圆筒（55）下侧的两侧两组的连接头（54）对应连通，实现冷却液从切换头一（511）进入液冷板一（51），从切换头二（517）流出；One side opening of the guide groove 1 (512) is correspondingly connected to the two middle groups of positioning water pipes (54), the upper side opening of the guide groove 1 (512) is correspondingly connected to the two middle groups of connectors (54) on the upper side of the cylinder (55), one side opening of the guide groove 2 (518) is correspondingly connected to the two side groups of positioning water pipes (54), and the lower side opening of the guide groove 2 (518) is correspondingly connected to the two side groups of connectors (54) on the lower side of the cylinder (55), so that the coolant enters the liquid cooling plate 1 (51) from the switching head 1 (511) and flows out from the switching head 2 (517); 电机（519）驱动切换头二（517）顺时针旋转 90 度的同时通过齿轮（515）驱动切换头一（511）逆时针旋转 90 度，导流槽一（512）的上侧开口与中间两组的定位通水管（54）对应连通、导流槽一（512）的一侧开口与圆筒（55）下侧的中间两组的连接头（56）对应连通，导流槽二（518）的一侧开口与圆筒（55）上侧的两侧两组的连接头（56）对应连通、导流槽二（518）的下侧开口与两侧两组的定位通水管（54）对应连通，实现冷却液从切换头二（517）进入液冷板一（51），从切换头一（51）流出。The motor (519) drives the switching head 2 (517) to rotate 90 degrees clockwise and drives the switching head 1 (511) to rotate 90 degrees counterclockwise through the gear (515). The upper opening of the guide groove 1 (512) is correspondingly connected to the two middle groups of positioning water pipes (54), and the one side opening of the guide groove 1 (512) is correspondingly connected to the two middle groups of connecting heads (56) on the lower side of the cylinder (55). The one side opening of the guide groove 2 (518) is correspondingly connected to the two groups of connecting heads (56) on the upper side of the cylinder (55), and the lower side opening of the guide groove 2 (518) is correspondingly connected to the two groups of positioning water pipes (54) on the two sides, so that the coolant enters the liquid cooling plate 1 (51) from the switching head 2 (517) and flows out from the switching head 1 (51). 2.根据权利要求1所述的一种新能源动力汽车电池组冷却装置，其特征在于：所述推块（62）下侧位置设置在两组凸块（67）之间位置，所述固定钉（63）与套杆（64）为滑动设置，两组所述液冷板二（66）为镜面对称设置。2. A new energy vehicle battery pack cooling device according to claim 1, characterized in that: the lower side of the push block (62) is arranged between the two groups of protrusions (67), the fixing nail (63) and the sleeve rod (64) are slidingly arranged, and the two groups of liquid cooling plates (66) are mirror-symmetrically arranged. 3.根据权利要求1所述的一种新能源动力汽车电池组冷却装置，其特征在于：四组所述连接管（611）的上侧穿过电池组外壳（1）与液冷板二（66）中的循环槽二（610）固定连接，四组所述连接管（611）的中间两组与两侧两组分别两组导流壳（57）连接。3. A new energy vehicle battery pack cooling device according to claim 1, characterized in that: the upper sides of the four groups of connecting pipes (611) pass through the battery pack housing (1) and are fixedly connected to the circulation groove 2 (610) in the second liquid cooling plate (66), and the middle two groups of the four groups of connecting pipes (611) are connected to the two groups of guide shells (57) on both sides respectively. 4.根据权利要求1所述的一种新能源动力汽车电池组冷却装置，其特征在于：两组所述固定架（612）之间的距离大于电池块（4）极耳直径，所述导热片（614）为弹性金属材料，两组所述导流管（616）与液冷板二（66）固定连接且与内部循环槽二（610）相通。4. A new energy vehicle battery pack cooling device according to claim 1, characterized in that: the distance between the two groups of the fixing frames (612) is greater than the diameter of the battery block (4) pole ear, the heat conductive sheet (614) is made of elastic metal material, and the two groups of the flow guide pipes (616) are fixedly connected to the second liquid cooling plate (66) and communicated with the second internal circulation tank (610).
CN202411476793.4A 2024-10-22 2024-10-22 New energy power automobile group battery cooling device Active CN119029398B (en)

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