CN117317433A - Liquid cooling battery PACK - Google Patents
Liquid cooling battery PACK Download PDFInfo
- Publication number
- CN117317433A CN117317433A CN202311121755.2A CN202311121755A CN117317433A CN 117317433 A CN117317433 A CN 117317433A CN 202311121755 A CN202311121755 A CN 202311121755A CN 117317433 A CN117317433 A CN 117317433A
- Authority
- CN
- China
- Prior art keywords
- liquid cooling
- box body
- liquid
- battery
- battery pack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 238000001816 cooling Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- 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
- H01M10/65—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
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- 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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a liquid cooling battery PACK, which aims to solve the defects that the existing liquid cooling battery PACK comprises liquid cooling through a pipeline and a connector, and the pipeline and the connector occupy a large amount of space and increase the risk of liquid leakage. The invention comprises a box body and a module, wherein the box body comprises a box body and a box cover, the top of the box body is open, a liquid cooling plate is arranged on the box body, the bottom of the module is attached to the liquid cooling plate, one end of the liquid cooling plate extends out of the box body through a through hole, and a water inlet interface and a water return interface extend out of the box body through the through hole. The water inlet interface and the water return interface of the liquid cooling plate directly extend out of the box body, so that a pipeline and a joint are not required to be arranged in the box body, the space is saved, and the water leakage risk is reduced.
Description
Technical Field
The invention relates to the field of energy storage, in particular to a liquid cooling battery PACK.
Background
Battery PACK has been widely used in various devices as a large-capacity power supply carrier. On the premise of ensuring safety, high energy density and long service life are the development directions of battery PACK.
Because the capacity of the battery core is limited, the space for fully utilizing the battery PACK is an important mode for improving the energy density, a great amount of heat can be generated by the battery in the charging and discharging process, and the service life of the battery can be influenced even the thermal runaway of the battery is caused by the excessively high temperature. Therefore, heat generated by the work of the battery PACK is taken away in time, and the work temperature of the battery PACK is ensured, so that the service life and the safety of the battery are improved. The liquid cooling battery PACK utilizes the characteristics of high heat exchange coefficient and large heat capacity of the liquid medium to carry out convection heat exchange on the battery, and the temperature of the battery PACK can be obviously reduced.
The existing liquid cooling battery PACK mainly realizes liquid flow through laying a pipeline at the bottom of a battery module, and the inside of the PACK is connected by a connector. The pipeline and the connector can reduce the space utilization rate of the battery PACK, and meanwhile, the risk of leakage of cooling liquid can be caused, so that safety accidents are caused.
Disclosure of Invention
The invention overcomes the defects that the existing liquid cooling battery PACK comprises liquid cooling through a pipeline and a joint, the pipeline and the joint occupy a large amount of space and increase the risk of liquid leakage, and provides the liquid cooling battery PACK which can integrate a liquid cooling structure, eliminate the pipeline and the joint, save the space and reduce the risk of water leakage.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a liquid cooling battery PACK, includes box and module, and the box includes open box body in top and case lid, installs the liquid cooling board on the box body, and the module bottom is laminated with the liquid cooling board, and it has water inlet connection and return water interface to stretch out to the one end of liquid cooling board, the box is equipped with through hole, and water inlet connection and return water interface stretch out outside the box through the through hole.
The box body and the box cover are detachably connected through fasteners to form the liquid cooling battery PACK. The water inlet interface and the water return interface of the liquid cooling plate directly extend out of the box body, so that a pipeline and a joint are not required to be arranged in the box body, the space is saved, and the water leakage risk is reduced.
Preferably, the bottom wall of the box body is provided with an inner groove, the liquid cooling plate is embedded in the inner groove, the liquid cooling plate is connected with the box body through a fastener, and the fastener penetrates through a position outside the liquid cooling plate flow channel. Through inner groove location and installation liquid cooling board, avoid the skew of liquid cooling board for the liquid cooling board of aluminum alloy material and the box body that the material is steel realize integrative structure of speaking. By providing the inner recess, the height of the entire box is also reduced.
Preferably, the side wall of the box body is outwards turned out to form a first bonding edge, and the side wall of the cover body is outwards turned out to form a second bonding edge, and the first bonding edge is bonded with the second bonding edge and is sealed through the sealing gasket. The first laminating limit and the second laminating limit pass the hole on both sides through the fastener with this and install, improve the leakproofness through sealed the pad, avoid outside pollution to invade.
Preferably, the two ends of the length direction of the box body are fixedly connected with fixed cross bars through fasteners, the modules are fixedly connected with the fixed cross bars through fasteners, the fixed cross bars close to the front end of the box body are detachably connected with a first bracket and a second bracket, the first bracket is used for positioning the battery management unit, and the second bracket is used for positioning the front panel. The fixed cross bar is used for connecting the module and connecting the first bracket and the second bracket, the front end of the first bracket and the front end of the second bracket are used for positioning the battery management unit and the front panel, and the connection of the fixed cross bar to the first bracket, the second bracket and the module is realized through the fastener. The positioning of the battery management unit and the front panel by the first bracket and the second bracket is also achieved by the fasteners. Through this mode for in installation and dismantlement in-process, battery management unit and front panel all can break away from with module and box body comparatively easily, maintenance and maintenance are easier.
Preferably, the module comprises a cell stack formed by a plurality of rows of cells stacked along the length direction, an integrated busbar, end plates and end insulation sheets, wherein the end plates and the end insulation sheets are arranged at two ends of the cell stack in the length direction, a heat insulation buffer pad is arranged between adjacent cells, the cell stack is fixed through a clamping steel belt, the integrated busbar is arranged above each row of cells, the adjacent cells are connected in series through a connecting row and led out through copper bars, and the copper bars with the same polarity of each cell stack are connected through fasteners. The battery cell stack comprises four rows of battery cells, the two rows of battery cells are connected in series to form two power supplies, and the positive electrode and the negative electrode of the two power supplies are respectively connected together through fasteners to realize electric connection. Adjacent cells are subjected to heat insulation and buffering through a heat insulation buffer pad, so that chain type runaway of the cells caused by heat transfer due to thermal runaway of local cells is avoided. The integrated busbar (ccs busbar) integrates a sensor and a sampling wire harness, and outputs signals to a battery management unit for management. The end insulating sheet is arranged between the end plate and the battery cell, plays an insulating role, and the end plate is made of metal.
Preferably, the front panel is provided with positive and negative electrode leading-out columns, and the positive and negative electrode leading-out columns are connected with the copper bars of the module through fasteners.
Preferably, the side wall surface of the box body is provided with a side reinforcing strip and a side mounting strip in an angle iron shape, the side mounting strip and the side reinforcing strip are respectively arranged at the side position of the length direction of the box body, and the side reinforcing strip is arranged between the side mounting strip and the box body. The side reinforcing strip is used for protecting the longer side of the box body, so that the fragile terminal of the box body is prevented from being damaged, and the side mounting strip is provided with a hook hole and a mounting positioning hole, so that the battery PACK can be moved and mounted.
Preferably, an observation window is arranged on the box cover, the observation window is arranged at a position corresponding to the front panel of the box cover, and the observation window is connected with an explosion-proof pressure release valve through a fastener. The observation window also has the turn-ups between front panel, the turn-ups laminating is connected through the fastener, has sealed pad improvement leakproofness between the turn-ups.
Preferably, insulating plates are provided between adjacent positive and negative electrode lead-out posts, between adjacent copper bars having different polarities, and between the copper bars and the end plate. The pulling of the insulator plate enlarges the path required to form the arc, thereby reducing unwanted arcing.
Preferably, equipotential blocks are arranged between two adjacent rows of battery cells along the length direction of the box body. The outside base angle position of box still has the ground connection angle piece, and ground connection angle piece ground connection avoids battery PACK's surface electrified. The equipotential block is electrically connected with the grounding corner block, is grounded with the box body in a one-way, eliminates potential difference and improves the safety of the battery PACK.
Compared with the prior art, the invention has the beneficial effects that: the water inlet interface and the water return interface of the liquid cooling plate directly extend out of the box body, so that a pipeline and a joint are not required to be arranged in the box body, the space is saved, and the water leakage risk is reduced.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic diagram of a module of the present invention;
FIG. 3 is a schematic view of the housing body of the present invention;
FIG. 4 is an exploded view of the back view of the body of the case of the present invention;
in the figure:
the box body 1, the box cover 2, the liquid cooling plate 3, the inner groove 4, the water inlet interface 5, the water return interface 6, the sealing block 7, the reinforced molding 8, the transverse reinforcing sheet 9, the equipotential block 10, the grounding corner block 11, the first attaching edge 12, the second attaching edge 13, the sealing gasket 14, the fixing transverse bar 15, the first bracket 16, the second bracket 17, the battery management unit 18, the front panel 19, the observation window 20, the explosion-proof relief valve 21, the side reinforcing bar 22, the side mounting bar 23, the hook hole 24, the mounting positioning hole 25, the battery cell 26, the end plate 27, the end insulating sheet 28, the heat insulation buffer pad 29, the clamping steel belt 30, the copper bar 31, the anode and cathode lead-out column 32 and the integrated busbar 33.
Detailed Description
The disclosure is further described below with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, are merely relational terms determined for convenience in describing structural relationships of the various components or elements of the present disclosure, and do not denote any one of the components or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
In the present disclosure, terms such as "fixedly coupled," "connected," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the disclosure may be determined according to circumstances, and should not be interpreted as limiting the disclosure, for relevant scientific research or a person skilled in the art.
Examples:
referring to fig. 1, a PACK for a liquid-cooled battery includes a case and a module, the case including a case body 1 having an open top and a case cover 2. Install liquid cooling board 3 on the box body 1, the module bottom is laminated with liquid cooling board 3, and in some embodiments, box body 1 is the open casing in top, and wherein the lateral wall of box body 1 is shallower, the diapire of box body 1 is equipped with indent 4, embedded installation of liquid cooling board 3 is in indent 4, and liquid cooling board 3 passes through the fastener with box body 1 and is connected, the fastener passes the position beyond the 3 runners of liquid cooling board. Through inner groove 4 location and installation liquid cooling board 3, avoid the skew of liquid cooling board 3 for the liquid cooling board 3 of aluminum alloy material and box body 1 that the material is steel realize integrative voice structure. By providing the inner recess 4, the height of the entire box is also reduced. The inner groove 4 may be formed on the bottom wall of the case body 1 by machining, or may be formed by fixing a cross bar 15 and forming a side wall.
Referring to fig. 1 and 2, one end of the liquid cooling plate 3 extends to form a water inlet interface 5 and a water return interface 6, the box body is provided with a through hole, and the water inlet interface 5 and the water return interface 6 extend out of the box body through the through hole. The water inlet interface 5 and the water return interface 6 are sleeved with sealing blocks 7. The sealing block 7 improves the tightness of the water inlet interface 5 and the water return interface 6, and prevents leakage from invading into the battery PACK as a safety. The box body 1 and the box cover 2 are detachably connected through fasteners to form the liquid cooling battery PACK. The water inlet interface 5 and the water return interface 6 of the liquid cooling plate 3 directly extend out of the box body, so that a pipeline and a joint are not required to be arranged in the box body, the space is saved, and the water leakage risk is reduced.
Referring to fig. 4, the bottom of the case body 1 has a plurality of reinforcing moldings 8 disposed in a length direction, and in some embodiments, the reinforcing moldings 8 are inwardly recessed reinforcing bars, which may be obtained through a punching process. In the above embodiment, the shape of the relative recess between the reinforcing strip and the flow passage of the liquid cooling plate 3 is adapted. Since the reinforcing molding 8 of the case body 1 is obtained by a punching process, the flow plate can be sufficiently positioned. Still further, in some embodiments, the box body further includes some transverse reinforcing sheets 9, the surfaces of the transverse reinforcing sheets 9 are provided with closed reinforcing strips arranged along the width direction, the closed reinforcing strips are also obtained through a stamping process, and adjacent closed reinforcing strips are arranged at equal intervals and are connected to the bottom of the box body 1 through fasteners. Along the length direction of the box, equipotential blocks 10 are arranged between two adjacent rows of battery cells 26. The bottom angle position outside the box body is also provided with a grounding angle block 11, and the grounding angle block 11 is grounded so as to avoid the surface electrification of the battery PACK. The equipotential block 10 is electrically connected with the grounding corner block 11, is grounded with the box body in a one-way, eliminates potential difference and improves the safety of the battery PACK.
The side wall of the box body 1 is outwards turned out to form a first bonding edge 12, the side wall of the cover body is outwards turned out to form a second bonding edge 13, and the first bonding edge 12 is bonded with the second bonding edge 13 and is sealed through a sealing gasket 14. The first and second bonding sides 12 and 13 are mounted by fasteners through holes in both sides to improve sealing by the gasket 14 to prevent the intrusion of external contaminants.
The fixed horizontal bar 15 of fastener fixedly connected with is passed through at box body 1 length direction's both ends, and the module passes through fastener fixed connection with fixed horizontal bar 15, and fixed horizontal bar 15 near box body 1 front end still can dismantle and be connected with first support 16 and second support 17, and first support 16 is used for fixing a position battery management unit 18, and second support 17 is used for fixing a position front panel 19. The fixing cross bar 15 is used for connecting the module and the first bracket 16 and the second bracket 17, the first bracket 16 and the second bracket 17 are provided with front ends for positioning the battery management unit 18 and the front panel 19, and the connection of the fixing cross bar 15 to the first bracket 16 and the second bracket 17 and the module is realized by fasteners. The positioning of the battery management unit 18 and the front panel 19 by the first bracket 16 and the second bracket 17 is also achieved by fasteners. In this way, both the battery management unit 18 and the front panel 19 can be easily detached from the module and the case body 1 during the mounting and dismounting process, and maintenance and repair are easier. The observation window 20 and the front panel 19 also have flanges which are attached and connected by fasteners, and the gasket 14 is provided between the flanges to improve the sealing property. The case cover 2 is provided with an observation window 20, the observation window 20 is arranged at a position of the case cover 2 corresponding to the front panel 19, and the observation window 20 is connected with an explosion-proof pressure release valve 21 through a fastener.
The side frame structure is characterized by further comprising side reinforcing strips 22 attached to the side wall surface of the box body 1 and side mounting strips 23 in angle iron shapes, wherein the side mounting strips 23 and the side reinforcing strips 22 are respectively mounted at the side positions of the length direction of the box body 1, and the side reinforcing strips 22 are arranged between the side mounting strips 23 and the box body 1. The side reinforcing strip 22 is used for protecting the longer side of the box body, prevents the fragile terminal of the box body 1 from being damaged, and the side mounting strip 23 is provided with a hook hole 24 and a mounting positioning hole 25, thereby being beneficial to the movement and the mounting of the battery PACK.
Referring to fig. 2 and 3, the module comprises a cell stack formed by a plurality of rows of cells 26 stacked along the length direction, an integrated busbar 33, end plates 27 and end insulation sheets 28 arranged at two ends of the cell stack in the length direction, heat insulation buffer pads 29 are arranged between adjacent cells 26, the cell stack is fixed by clamping steel belts 30, the integrated busbar 33 is arranged above each row of cells 26, the adjacent cells 26 are connected in series by connecting rows and led out by copper bars 31, and the copper bars 31 with the same polarity of each cell stack are connected by fasteners. The cell stack comprises four rows of cells 26, the two rows of cells 26 are connected in series to form two power supplies, and the positive and negative poles of the two power supplies are respectively connected together through fasteners to realize electric connection. The adjacent cells 26 are subjected to heat insulation and buffering through the heat insulation buffer cushion 29, so that chain-type runaway of the cells 26 caused by heat transfer due to thermal runaway of the local cells 26 is avoided. The integrated busbar 33 (ccs busbar) integrates a sensor and a sampling harness, and outputs a signal to the battery management unit 18 for management. The end insulating sheet 28 is disposed between the end plate 27 and the battery cell 26, and serves as insulation, and the end plate 27 is made of metal. The front panel 19 is provided with positive and negative electrode lead-out posts 32, and the positive and negative electrode lead-out posts 32 are connected with the copper bars 31 of the module through fasteners. Insulating plates are provided between adjacent positive and negative electrode lead-out posts 32, between adjacent copper bars 31 having different polarities, and between the copper bars 31 and the end plates 27. The pulling of the insulator plate enlarges the path required to form the arc, thereby reducing unwanted arcing. Wherein, except for the fact that the insulating plates between the positive and negative electrode leading-out posts 32 are connected by fasteners, other insulating plates are fixed by bonding.
In some embodiments, a heat-conducting glue is provided between the liquid cooling plate 3 and the bottom of the module. Filling up the gap between the liquid cooling plate 3 and the bottom of the module, fully playing a role in heat dissipation by utilizing better heat transfer property of the heat conducting glue compared with air, and fixing the module by utilizing the viscosity of the heat conducting glue.
The above-described embodiments are merely preferred embodiments of the present invention, and the present invention is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (10)
1. The utility model provides a liquid cooling battery PACK, its characterized in that, including box and module, the box includes open box body in top and case lid, installs the liquid cooling board on the box body, and the module bottom is laminated with the liquid cooling board, and water inlet connection and return water interface are stretched out to the one end of liquid cooling board, the box is equipped with through hole, and water inlet connection and return water interface stretch out outside the box through the through hole.
2. The liquid-cooled battery PACK according to claim 1, wherein the bottom wall of the case body is provided with an inner groove, the liquid-cooled plate is embedded in the inner groove, the liquid-cooled plate is connected with the case body through a fastener, and the fastener passes through a position outside the liquid-cooled plate flow channel.
3. The PACK of claim 1, wherein the side wall of the case body is turned out to form a first engaging edge, and the side wall of the cover is turned out to form a second engaging edge, and the first engaging edge engages with the second engaging edge and is sealed by the gasket.
4. The liquid-cooled battery PACK according to claim 1, wherein the two ends of the length direction of the case body are fixedly connected with a fixing cross bar through a fastener, the module is fixedly connected with the fixing cross bar through a fastener, the fixing cross bar near the front end of the case body is detachably connected with a first bracket and a second bracket, the first bracket is used for positioning the battery management unit, and the second bracket is used for positioning the front panel.
5. The liquid cooling battery PACK according to claim 1, wherein the module comprises a battery cell stack formed by a plurality of battery cells stacked along the length direction, an integrated busbar, end plates and end insulation sheets, wherein the end plates and the end insulation sheets are arranged at two ends of the battery cell stack in the length direction, a heat insulation buffer cushion is arranged between adjacent battery cells, the battery cell stack is fixed through a clamping steel belt, the integrated busbar is arranged above each battery cell, the adjacent battery cells are connected in series through a connecting row and led out through copper bars, and the copper bars with the same polarity of each battery cell stack are connected through fasteners.
6. The PACK of claim 4, wherein the front panel is provided with positive and negative electrode lead-out posts, and the positive and negative electrode lead-out posts are connected with the copper bars of the module by fasteners.
7. The PACK of claim 1, further comprising a side reinforcing bar attached to the side wall of the case body and a side mounting bar in the shape of angle iron, wherein the side mounting bar and the side reinforcing bar are respectively mounted at the side positions of the length direction of the case body, and the side reinforcing bar is disposed between the side mounting bar and the case body.
8. The liquid cooled battery PACK of claim 4 or 6, wherein the case cover is provided with an observation window, the observation window is arranged at a position corresponding to the front panel of the case cover, and the observation window is connected with an explosion-proof relief valve through a fastener.
9. The PACK of claim 6, wherein insulating plates are provided between adjacent positive and negative electrode lead-out posts, between adjacent copper bars having different polarities, and between the copper bars and the end plates.
10. The PACK of claim 1, wherein equipotential blocks are provided between adjacent rows of cells along the length of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311121755.2A CN117317433A (en) | 2023-09-01 | 2023-09-01 | Liquid cooling battery PACK |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311121755.2A CN117317433A (en) | 2023-09-01 | 2023-09-01 | Liquid cooling battery PACK |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117317433A true CN117317433A (en) | 2023-12-29 |
Family
ID=89248891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311121755.2A Pending CN117317433A (en) | 2023-09-01 | 2023-09-01 | Liquid cooling battery PACK |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117317433A (en) |
-
2023
- 2023-09-01 CN CN202311121755.2A patent/CN117317433A/en active Pending
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