CN113140824A - Battery module, battery system and vehicle - Google Patents

Battery module, battery system and vehicle Download PDF

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Publication number
CN113140824A
CN113140824A CN202110343808.XA CN202110343808A CN113140824A CN 113140824 A CN113140824 A CN 113140824A CN 202110343808 A CN202110343808 A CN 202110343808A CN 113140824 A CN113140824 A CN 113140824A
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CN
China
Prior art keywords
battery module
battery
plate
liquid cooling
plates
Prior art date
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Granted
Application number
CN202110343808.XA
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Chinese (zh)
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CN113140824B (en
Inventor
汤超龙
王志强
许达理
程辉
李涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Xiaopeng Motors Technology Co Ltd
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Guangzhou Xiaopeng Motors Technology Co Ltd
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Priority to CN202110343808.XA priority Critical patent/CN113140824B/en
Publication of CN113140824A publication Critical patent/CN113140824A/en
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Publication of CN113140824B publication Critical patent/CN113140824B/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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The embodiment of the application provides a battery module, battery system and vehicle, the battery module specifically includes: liquid cooling plates, side plates and end plates; the liquid cooling plate comprises a bottom plate and a cooling channel arranged on the bottom plate, the bottom plate comprises a first side and a second side which are opposite, and a first end and a second end which are opposite, and the first end and the second end are respectively connected with the first side and the second side; the side plates are connected to the first side and the second side of the bottom plate, the end plates are connected to the first end and the second end of the bottom plate, the side plates and the end plates enclose to form an accommodating space, and the cooling channel is located in the accommodating space; at least two rows of battery cells are arranged in the accommodating space, and each row of battery cells comprises a plurality of battery cells. In the embodiment of the application, the integration level of the battery module is higher, and the maintenance cost is lower.

Description

Battery module, battery system and vehicle
Technical Field
The application belongs to the technical field of vehicles, and particularly relates to a battery module, a battery system and a vehicle.
Background
Among traditional battery module, because the quantity of electric core in the battery module is less, under the condition of assembling into battery system with a plurality of battery modules, increase battery system's structure ratio very easily, reduce battery system's energy density. In order to increase the energy density of a battery system, large battery modules including a plurality of rows of cells are produced.
Among the prior art, because the electric core in the big battery module is in a large number, the volume of module is great, consequently, big battery module is at the in-process of work, and the heat of production is higher, in order in time to dispel the heat, needs the independent liquid cooling board of bottom installation at battery module.
However, in the case of the conventional large battery module, the bottom of the battery module is generally adhered to the liquid cooling plate of the lower case due to its large volume. Thus, not only the height of the entire battery module is increased, but also the layout of the battery module on the vehicle is affected. Moreover, in case the battery module breaks down, the battery module and the lower case need to be replaced integrally, and the maintenance cost of the battery module is high.
Disclosure of Invention
The present application aims to provide a battery module, a battery system and a vehicle, which at least solve one of the problems of high height and high maintenance cost of the battery module.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a battery module, including: liquid cooling plates, side plates and end plates; wherein,
the liquid cooling plate comprises a bottom plate and a cooling channel arranged on the bottom plate, the bottom plate comprises a first side and a second side which are opposite, and a first end and a second end which are opposite, and the first end and the second end are respectively connected with the first side and the second side;
the side plates are connected to the first side and the second side of the bottom plate, the end plates are connected to the first end and the second end of the bottom plate, the side plates and the end plates enclose to form an accommodating space, and the cooling channel is located in the accommodating space;
at least two rows of battery cells are arranged in the accommodating space, and each row of battery cells comprises a plurality of battery cells.
Optionally, the battery module further includes: an insulating sheet; the insulating sheet is embedded between the end plate and the battery core.
Optionally, the end plate is welded with the side plate; the end plate, the side plate and the bottom plate are connected in a welding mode.
Optionally, a water inlet pipe and a water outlet pipe are further arranged on the liquid cooling plate;
the water inlet pipe is arranged in the first through hole in a penetrating mode, and the water outlet pipe is arranged in the second through hole in a penetrating mode.
Optionally, the liquid cooling plate is bonded to the bottom of the battery cell through a heat conducting adhesive or a heat conducting structural adhesive.
Optionally, the battery module further includes: a wire harness isolation plate; wherein,
the wiring harness isolation plate is respectively connected with each electric core so as to realize the electric connection between the electric cores.
Optionally, a temperature sensor and an electric protection piece are further arranged in the wire harness isolation plate; wherein,
the temperature sensor is used for detecting the temperature of the battery cell, and the electric protection piece is fused under the condition that the temperature of the battery cell exceeds a preset value.
Optionally, the battery module further includes: and the cover plate covers the wiring harness isolation plate.
In a second aspect, an embodiment of the present application provides a battery system, including: the battery module according to any one of the above aspects.
In a third aspect, an embodiment of the present application provides a vehicle, including: the battery system is provided.
In the embodiment of the application, the battery module can include two row at least electric cores, and every row of electric core can include a plurality of electric cores, also, the quantity of electric core in the battery module is more, and energy density is higher, and the integrated level is higher, and the structure accounts for less. When the battery module is used for a battery system, the integration level of the battery system can be improved, and the weight and the cost of the battery system are reduced. Moreover, the liquid cooling plate is integrated to the bottom of the battery module, so that the height of the battery module can be reduced, and the layout of the battery module on a vehicle is facilitated. Moreover, because the liquid cooling plate is integrated on the battery module, the operation of bonding the battery module to the lower box body is avoided, the battery module can be independently replaced under the condition that the battery module breaks down, the maintenance difficulty of the battery module is reduced, and therefore the maintenance cost of the battery module can be reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 2 is an exploded structural view of the battery module shown in fig. 1;
FIG. 3 is a schematic diagram of a liquid-cooled panel according to an embodiment of the present application;
fig. 4 is a partially exploded schematic structural view of a battery module according to an embodiment of the present disclosure;
reference numerals: 10-liquid cooling plate, 101-bottom plate, 102-cooling channel, 103-water inlet pipe, 104-water outlet pipe, 105-upper cover, 106-through hole, 11-side plate, 111-mounting plate, 112-mounting hole, 12-end plate, 13-battery core, 14-wiring harness isolation plate, 15-cover plate and 16-insulation sheet.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the application provides a battery module, battery module can provide power for new energy vehicles such as electric vehicle, hybrid vehicle.
Referring to fig. 1, a schematic structural diagram of a battery module according to an embodiment of the present application is shown, referring to fig. 2, an exploded schematic structural diagram of the battery module shown in fig. 1 is shown, referring to fig. 3, a schematic structural diagram of a liquid cooling plate according to an embodiment of the present application is shown, and referring to fig. 4, a schematic structural diagram partially exploded of a battery module according to an embodiment of the present application is shown.
The battery module may specifically include: a liquid cooling plate 10, a side plate 11 and an end plate 12; wherein,
the liquid cooling plate 10 may include a base plate 101 and a cooling channel 102 disposed on the base plate 101, the base plate 101 including opposite first and second sides, and opposite first and second ends connected to the first and second sides, respectively;
the side plates 11 are connected to the first side and the second side of the bottom plate 101, the end plates 12 are connected to the first end and the second end of the bottom plate 101, the side plates 11 and the end plates 12 enclose to form an accommodating space, and the cooling channel 102 is located in the accommodating space;
at least two rows of battery cells are arranged in the accommodating space, and each row of battery cells comprises a plurality of battery cells 13.
In the embodiment of the present application, the battery module may include at least two rows of battery cores, and each row of battery cores may include a plurality of battery cores 13, that is, the number of battery cores 13 in the battery module is relatively large, energy density is relatively high, and the structural component accounts for relatively small. When the battery module is used for a battery system, the integration level of the battery can be improved, and the weight and the cost of the battery system can be reduced. Moreover, by integrating the liquid cooling plate 10 to the bottom of the battery module, the height of the battery module can be reduced, facilitating the layout of the battery module on the vehicle. Moreover, because with the integration of liquid cooling board 10 on the battery module, avoided bonding the battery module in the operation of box down under the battery module breaks down, can change alone the battery module has reduced the maintenance degree of difficulty of battery module to, can reduce the maintenance cost of battery module.
It should be noted that, in the drawings of the embodiment of the present application, only the case that the battery module includes two rows of the battery cells 13 is shown, and in practical application, the number of rows of the battery cells 13 in the battery module may also be 3 rows, 4 rows, or 6 rows, and the like, and the number of the battery cells in each row of the battery cells may also be set according to practical situations, for example, the number of the battery cells in each row may be any value from 10 to 30, and the specific numerical value of the battery cells 13 in each row of the battery cells in the embodiment of the present application may not be limited.
In practical applications, the side plates 11 and the end plates 12 may be used as a frame of the battery module for fixing the battery cells 13. The end plates 12 are located at two ends of the battery module and used for clamping the battery cells 13. The side plate 11 may be bonded to a side surface of the battery cell 13, so as to fix the battery cell 13 to the side plate 11.
In one embodiment of the present application, the end plate 12 may be welded to the side plate 11; the end plate 12 and the side plate 11 are welded to the bottom plate 101 to fix the plurality of battery cells 13. Moreover, the liquid cooling plate 10 can be used as a structural member at the bottom of the battery module, so that the structural strength of the battery module is improved, the design that a bottom structural member is additionally arranged on the battery module is avoided, the structural member occupation ratio in the battery module is further reduced, and the integration degree of the battery module is improved.
Optionally, the battery module may further include: a harness isolation plate 14; the wire harness isolation plate 14 is connected to each of the battery cells 13, so as to electrically connect the battery cells 13, and establish a series and parallel circuit system for the plurality of battery cells 13.
It should be noted that, in practical application, the wire harness isolation plate 14 may be disposed on the top of the battery cells 13, or may be embedded in gaps among the plurality of battery cells 13, so as to further reduce the height of the battery module, which is not limited in this embodiment of the application.
Optionally, a temperature sensor and an electric protector are also arranged in the wire harness isolation plate 14; the temperature sensor may be configured to detect a temperature of the battery cell 13, and when the temperature of the battery cell exceeds a preset value, the electrical protection element is fused to protect the wire harness in the wire harness isolation plate 14.
For example, the electrical protector may include, but is not limited to, a fuse, a circuit breaker, and the like, and the specific type of the electrical protector may not be limited in the embodiments of the present application.
Optionally, the battery module may further include: the cover plate 15, the cover plate 15 can cover the wire harness isolation plate 14 to avoid the short circuit or other faults caused by the dropping of foreign matters or water vapor on the display isolation plate 14, so as to improve the use safety of the wire harness isolation plate 14.
In some optional embodiments of the present application, the battery module may further include: an insulating sheet 16; wherein, insulating piece 16 can inlay and locate between end plate 12 and electric core 13, keeps apart electric core 13 and end plate 12, avoids the high pressure of electric core 13 during operation to expose, improves the safe in utilization of battery module, moreover, can also avoid the trouble of taking place the short circuit between electric core 13 and the end plate 12, further improves the safe in utilization of battery module.
As shown in fig. 3, the liquid-cooled panel 10 may include a base panel 10 and a plurality of cooling channels 102 disposed on the base panel 101.
For example, the liquid cooling plate 10 may be a liquid cooling plate welded by aluminum, and the cooling channel 102 isolated by fins inside the liquid cooling plate may be filled with a cooling medium when the liquid cooling plate 10 is in an operating state, and heat dissipation or heating is achieved by circulation of the cooling medium in the cooling channel 102.
It should be noted that, in the drawings of the embodiment of the present application, only the case that the liquid-cooled plate 10 is a fin-type liquid-cooled plate is shown, and in practical applications, according to the requirement of thermal management, the liquid-cooled plate 10 may also be a stamped liquid-cooled plate or a profile liquid-cooled plate or other types of liquid-cooled plates, and the specific structure of the liquid-cooled plate 10 in the embodiment of the present application may not be limited.
Optionally, the liquid cooling plate 10 may be bonded to the bottom of the battery cell 13 through a heat conducting adhesive or a heat conducting structural adhesive to fill a gap between the battery cell 13 and the liquid cooling plate 10, so as to improve the uniformity of heat conduction between the liquid cooling plate 10 and the battery cell 13, and improve the efficiency of cooling or heating the battery cell 13 by a cooling medium in the liquid cooling plate 10.
It should be noted that, under the condition that the liquid cooling plate 10 is bonded to the bottom of the battery cell 13 through the heat conducting glue or the heat conducting structural glue, the operation of welding the liquid cooling plate 10 to the bottom of the side plate 11 can be avoided, the workload of partial welding is cancelled, and further, the processing efficiency of the battery module can be improved.
In the embodiment of the present application, since the liquid cooling plate 10 is integrated in the battery module, the thickness of the liquid cooling plate 10 can be designed to be thin, and the area can be designed to be small. In practical application, after the liquid cooling plate 10 is thinned, the requirement of the battery module on the height space can be reduced. And the overall flatness of the liquid-cooling plate 10 can be improved by making the area of the liquid-cooling plate 10 small. And under the condition that the whole flatness of the liquid cooling plate 10 is improved, the clearance between the liquid cooling plate 10 and the bottom of the battery core 13 is smaller, and the heat-conducting glue between the liquid cooling plate 10 and the bottom of the battery core 13 can be coated thinly, so that the height of the battery module can be further reduced.
In practical application, under the condition that the area of the liquid cooling plate 10 is smaller and the thickness of the liquid cooling plate is smaller, the weight of the liquid cooling plate 10 can be reduced, and under the protection of the side plate 11 and the end plate 12, the liquid cooling plate 10 can be optimized in more topologies, the structural strength requirement can be reduced, meanwhile, an elastic element in the traditional scheme can be eliminated, and the integration level is higher for the whole battery system.
In the embodiment of the application, through the integration of liquid cooling board 10 in the battery module, the liquid cooling clearance requirement of liquid cooling board 10 and electric core 13 bottom is lower, and the laminating between electric core 13 and the liquid cooling board 10 is comparatively balanced to, the radiating effect of liquid cooling board 10 has been improved.
In practical application, the tool can be used for limiting the battery cell 13 and the liquid cooling plate 10 to a certain size, and then the position of the liquid cooling plate is welded, so that the implementation mode is simple.
In this embodiment, the liquid cooling plate 10 is further provided with a water inlet pipe 103 and a water outlet pipe 104, the water inlet pipe 103 and the water outlet pipe 104 may be communicated with the cooling channel 102, the water inlet pipe 103 may be used to introduce the cooling medium into the cooling channel 102, and the water outlet pipe 104 is used to lead out the cooling medium in the cooling channel 102.
Optionally, as shown in fig. 3, the liquid cooling plate 10 may further include an upper cover 105, and the upper cover 105 may cover the cooling channel 102 to protect the cooling channel 102 and prevent the cooling channel 102 from being directly connected to the bottom of the battery cell 103. Illustratively, the upper cover 105 is provided with through holes 106 at positions opposite to the water inlet pipe 103 and the water outlet pipe 104, and the water inlet pipe 103 and the water outlet pipe 104 may be respectively provided with the through holes 106.
As shown in fig. 4, the end plate 12 is provided with a first through hole and a second through hole, the water inlet pipe 103 can be inserted into the first through hole, and the water outlet pipe 104 is inserted into the second through hole, so that the water inlet pipe 103 and the water outlet pipe 104 can be inserted into the end plate 12, respectively, to further improve the integration level of the battery module, and save the space in the length direction of the battery module. Moreover, the water inlet pipe 103 and the water outlet pipe 104 are integrated in the end plate 12, the end plate 12 can be used for protecting the water inlet pipe 103 and the water outlet pipe 104, and the water inlet pipe 103 and the water outlet pipe 104 are prevented from being damaged by collision in the transportation process or the assembly process.
It should be noted that, in the drawings of the embodiment of the present application, only the situation that the liquid cooling plate 10 is added at the bottom of the battery module is actually taken place, and in practical applications, the liquid cooling plate 10 may also be disposed at other positions according to the orientation of the terminal of the battery cell 13, for example, the liquid cooling plate 10 may also be disposed at the top or the side of the battery module, and the specific position of the liquid cooling plate 10 in the battery module in the embodiment of the present application may not be limited.
Optionally, in this embodiment of the application, the outer side of the side plate 11 may further be provided with a mounting plate 111, the mounting plate 111 may be provided with a mounting hole 112, and the mounting hole 112 may be used for a fastener to penetrate through, so that the battery module is connected to the vehicle body through the fastener, which is convenient for the installation and fixation of the battery module on the vehicle. Like this, just can avoid bonding the operation of box under the battery module breaks down under the condition, change the battery module can, cost of maintenance is lower.
To sum up, the battery module described in the embodiments of the present application can include at least the following advantages:
in this application embodiment, the battery module can include two row at least electric cores, and every row of electric core can include a plurality of electric cores, also, the quantity of electric core in the battery module is more, and energy density is higher, and the structure accounts for less. When the battery module is used for a battery system, the integration level of the battery can be improved, and the weight and the cost of the battery system can be reduced. Moreover, the liquid cooling plate is integrated to the bottom of the battery module, so that the height of the battery module can be reduced, and the layout of the battery module on a vehicle is facilitated. Moreover, because the liquid cooling plate is integrated on the battery module, the operation of bonding the battery module to the lower box body is avoided, the battery module can be independently replaced under the condition that the battery module breaks down, the maintenance difficulty of the battery module is reduced, and therefore the maintenance cost of the battery module can be reduced.
An embodiment of the present application further provides a battery system, where the battery system may include: the battery module according to any one of the above embodiments. In the embodiment of the present application, the structure of the battery module is the same as that of the battery modules in the foregoing embodiments, and details are not described herein.
In this application embodiment, the battery module can include two row at least electric cores, and every row of electric core can include a plurality of electric cores, also, the quantity of electric core in the battery module is more, and energy density is higher, and the structure accounts for less. When the battery module is used for a battery system, the integration level of the battery can be improved, and the weight and the cost of the battery system can be reduced. Moreover, the liquid cooling plate is integrated to the bottom of the battery module, so that the height of the battery module can be reduced, and the layout of the battery module on a vehicle is facilitated. Moreover, because the liquid cooling plate is integrated on the battery module, the operation of bonding the battery module to the lower box body is avoided, the battery module can be independently replaced under the condition that the battery module breaks down, the maintenance difficulty of the battery module is reduced, and therefore the maintenance cost of the battery module can be reduced.
Embodiments of the present application further provide a vehicle, the vehicle may include: the battery system of any of the above embodiments. In the embodiment of the present application, the structure of the battery system is the same as that of the battery systems in the foregoing embodiments, and the beneficial effects are also similar, which are not described herein again.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A battery module, comprising: liquid cooling plates, side plates and end plates; wherein,
the liquid cooling plate comprises a bottom plate and a cooling channel arranged on the bottom plate, the bottom plate comprises a first side and a second side which are opposite, and a first end and a second end which are opposite, and the first end and the second end are respectively connected with the first side and the second side;
the side plates are connected to the first side and the second side of the bottom plate, the end plates are connected to the first end and the second end of the bottom plate, the side plates and the end plates enclose to form an accommodating space, and the cooling channel is located in the accommodating space;
at least two rows of battery cells are arranged in the accommodating space, and each row of battery cells comprises a plurality of battery cells.
2. The battery module according to claim 1, further comprising: an insulating sheet; the insulating sheet is embedded between the end plate and the battery core.
3. The battery module according to claim 1, wherein the end plates are welded to the side plates; the end plate, the side plate and the bottom plate are connected in a welding mode.
4. The battery module as recited in claim 1, wherein the liquid cooling plate is further provided with a water inlet pipe and a water outlet pipe;
the water inlet pipe is arranged in the first through hole in a penetrating mode, and the water outlet pipe is arranged in the second through hole in a penetrating mode.
5. The battery module according to claim 1, wherein the liquid cooling plate is bonded to the bottom of the battery cell by a thermally conductive adhesive or a thermally conductive structural adhesive.
6. The battery module according to claim 1, further comprising: a wire harness isolation plate; wherein,
the wiring harness isolation plate is respectively connected with each electric core so as to realize the electric connection between the electric cores.
7. The battery module according to claim 6, wherein a temperature sensor and an electric protector are further provided in the wire harness separator; wherein,
the temperature sensor is used for detecting the temperature of the battery cell, and the electric protection piece is fused under the condition that the temperature of the battery cell exceeds a preset value.
8. The battery module according to claim 6, further comprising: and the cover plate covers the wiring harness isolation plate.
9. A battery system, comprising: the battery module according to any one of claims 1 to 8.
10. A vehicle, characterized by comprising: the battery system of claim 9.
CN202110343808.XA 2021-03-30 2021-03-30 Battery module, battery system and vehicle Active CN113140824B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110343808.XA CN113140824B (en) 2021-03-30 2021-03-30 Battery module, battery system and vehicle

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Application Number Priority Date Filing Date Title
CN202110343808.XA CN113140824B (en) 2021-03-30 2021-03-30 Battery module, battery system and vehicle

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CN113140824A true CN113140824A (en) 2021-07-20
CN113140824B CN113140824B (en) 2022-10-14

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