CN216529124U - Battery system - Google Patents

Battery system Download PDF

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Publication number
CN216529124U
CN216529124U CN202122827391.2U CN202122827391U CN216529124U CN 216529124 U CN216529124 U CN 216529124U CN 202122827391 U CN202122827391 U CN 202122827391U CN 216529124 U CN216529124 U CN 216529124U
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CN
China
Prior art keywords
battery
battery system
mounting bracket
frame
module
Prior art date
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Active
Application number
CN202122827391.2U
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Chinese (zh)
Inventor
李云庆
唐泳聪
周元
王晓宾
徐博豪
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.)
Hubei Eve Power Co Ltd
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Hubei Eve Power Co Ltd
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Publication date
Application filed by Hubei Eve Power Co Ltd filed Critical Hubei Eve Power Co Ltd
Priority to CN202122827391.2U priority Critical patent/CN216529124U/en
Application granted granted Critical
Publication of CN216529124U publication Critical patent/CN216529124U/en
Priority to PCT/CN2022/102377 priority patent/WO2023087725A1/en
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Anticipated expiration legal-status Critical

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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
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • 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)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The utility model belongs to the technical field of automobile battery systems, and discloses a battery system which comprises a battery module and a fixed box body, wherein the battery module is arranged in the fixed box body, the fixed box body comprises a supporting bottom plate and at least two length frames which are arranged at intervals, a plurality of mounting brackets are arranged on each length frame along the length direction of the length frame, the mounting brackets are used for being connected with a chassis threshold beam, and the heights of the mounting brackets which are arranged on the same length frame along a Y axis and arranged along the Z axis are sequentially reduced; the supporting bottom plate is connected between the two adjacent length frames and used for bearing the battery module. The mounting brackets with different heights can adjust the height according to the mounting position of the chassis threshold beam, so that the fixed box body can be adapted to different vehicle types, and the applicability of the battery system in different vehicle types is improved.

Description

Battery system
Technical Field
The utility model relates to the technical field of automobile battery systems, in particular to a battery system.
Background
With the widespread acceptance of electric automobiles, the development prospect is very broad, and the technical progress is also very obvious. In order to occupy more market shares, automobile enterprises often develop a plurality of types of automobile on the premise of ensuring quality, parts of all types of automobile are often universal, and other parts need to be replaced or changed. The battery system is used as a core component of the electric automobile, the development cost is high, the development period is long, and if one battery system can be shared by different automobile models, the development period of the whole new automobile model can be greatly shortened, and the development cost is reduced.
SUMMERY OF THE UTILITY MODEL
One object of the present invention is: the utility model provides a battery system, with a plurality of carry support unequal height setting on the length frame, a plurality of carry support unequal height can carry out height control according to the mounted position of chassis threshold roof beam to make fixed box can the different motorcycle types of adaptation, improve battery system at the suitability of different motorcycle types.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a battery system, battery system includes battery module and fixed box, battery module install in the fixed box, fixed box includes:
the mounting bracket is used for being connected with a chassis sill beam, and the heights of a plurality of mounting brackets arranged along the Y axis on the same length frame in the Z axis direction are sequentially reduced;
and the supporting bottom plate is connected between the two adjacent length frames and used for bearing the battery module.
As an optional technical scheme, two adjacent length frames are respectively a left frame and a right frame, the mounting bracket mounted on the left frame is a left mounting bracket, the mounting bracket mounted on the right frame is a right mounting bracket, the left mounting bracket and the right mounting bracket are arranged in a one-to-one correspondence manner, and the heights of the left mounting bracket in the Z-axis direction are not equal to the heights of the right mounting bracket in the one-to-one correspondence manner.
As an optional technical scheme, every all seted up the mounting hole on the mount support, install the bush in the mounting hole, the bush with can dismantle the connection between the chassis threshold roof beam.
As an optional technical scheme, the battery module including install in module box on the supporting baseplate, set up in a plurality of electricity core in the module box and set up in the radiator of electricity core bottom, the bottom of module box is offered and is used for stepping down the breach of stepping down of radiator.
As an optional technical solution, the radiator is a harmonica tube radiator or a liquid cooling plate radiator.
As an optional technical solution, the battery module further includes foam, the foam is disposed at the bottom of the heat sink, and the height of the abdicating notch is equal to the sum of the heights of the heat sink and the foam.
As an optional technical solution, an aerogel pad is arranged between two adjacent battery cells.
As an optional technical scheme, the module box body comprises an end plate, side plates and an upper box body cover, the end plate and the side plates are enclosed into four frames, the upper box body cover is installed at the tops of the four frames in a covering mode, the abdicating notch is formed in the bottom of the end plate, installation through holes are formed in the two sides of the end plate along the Z-axis direction, the supporting bottom plate corresponds to the installation through holes, connecting through holes are formed in the installation through holes, and the installation through holes are connected with the connecting through holes through rivet nuts.
As an optional technical scheme, the battery module further comprises an insulating sheet, and the insulating sheet is arranged between the battery core and the end plates.
As an optional technical solution, a structural adhesive is disposed between the side plate and the battery cell.
As an optional technical solution, the fixed box further includes a fixed box cover, the fixed box cover is covered and installed on the top of the length frame, the battery system further includes a mica component, and the inner wall of the fixed box cover and/or the inner wall of the upper box cover is provided with the mica component.
As an optional technical scheme, the battery system further comprises an explosion-proof valve, the explosion-proof valve is arranged on the upper box body cover and/or the fixed box cover, and the explosion-proof valve is used for discharging out-of-control gas.
The utility model has the beneficial effects that:
the utility model provides a battery system, when the battery system is required to be assembled on different types of automobiles, a fixed box body is arranged on a chassis doorsill beam of the automobile, and the heights of mounting brackets on length frames along the Z-axis direction are different, so that the heights of the mounting brackets can be adjusted according to the mounting positions of the chassis doorsill beam, the battery system can be adapted to different automobile types, the development cost of the battery system is reduced, and the development period is shortened.
Drawings
The utility model is explained in further detail below with reference to the figures and examples;
fig. 1 is an exploded view of the structure of a battery system according to an embodiment;
FIG. 2 is an exploded view of the structure of the fixed box according to the embodiment;
fig. 3 is an exploded view illustrating the structure of a battery module according to an embodiment;
fig. 4 is a partial sectional view of a battery system according to an embodiment.
In the figure:
10. fixing the box body; 11. a length frame; 12. mounting a bracket; 13. a support base plate; 14. a bushing; 15. fixing the box cover; 16. a width frame; 17. mica plates;
20. a battery module; 21. a module box body; 211. a abdication gap; 212. an end plate; 213. a side plate; 214. an upper box cover; 22. an electric core; 23. a heat sink; 24. soaking cotton; 25. an aerogel pad; 26. pulling and riveting the nut; 27. an insulating sheet; 28. mica paper.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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 invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to 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 utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
The battery system is installed on the chassis threshold roof beam of electric automobile, because the car of different grade type adopts different chassis threshold roof beams, consequently need develop many money battery system for the development cycle overlength of new motorcycle type, development cost remains high.
As shown in fig. 1, to solve the above problem, the present embodiment provides a battery system, which can be applied to different types of automobiles, shorten the development cycle of new automobiles, and reduce the development cost. The battery system includes a stationary case 10 and a battery module 20 mounted in the stationary case 10. The battery modules 20 are provided in several groups.
As shown in fig. 2, optionally, the fixed box 10 includes a supporting bottom plate 13 and at least two length frames 11 arranged at intervals, each length frame 11 is provided with a plurality of mounting brackets 12 along the length direction thereof, the mounting brackets 12 are used for being connected with chassis sill beams, and the heights of the mounting brackets 12 arranged along the Y axis on the same length frame 11 in the Z axis direction are sequentially decreased progressively; the supporting bottom plate 13 is connected between two adjacent length frames 11 and used for bearing the battery module 20.
In this embodiment, length frame 11 sets up to two, two length frames 11 are parallel and the interval sets up, when need assemble battery system to the car of different grade type on, install fixed box 10 on the chassis threshold roof beam of car, carry support 12 on the length frame 11 along the height inequality of Z axle direction, consequently carry support 12 and can carry out the adjustment on the height according to the mounted position of chassis threshold roof beam, thereby make the different motorcycle types of battery system adaptation, reduce battery system's development cost, shorten development cycle. In other embodiments, the length frame 11 may be set to three or four, and the specific number may be set according to actual needs. In other embodiments, two adjacent length frames 11 may be disposed at an included angle.
Optionally, the two adjacent length frames 11 are a left frame and a right frame respectively, the mounting bracket 12 mounted on the left frame is a left mounting bracket, the mounting bracket 12 mounted on the right frame is a right mounting bracket, the left mounting bracket and the right mounting bracket are arranged in a one-to-one correspondence manner, and the height of the one-to-one corresponding left mounting bracket in the Z-axis direction is not equal to the height of the right mounting bracket.
In this embodiment, the left mounting bracket on the left frame sets up to four, and the right mounting bracket on the right frame sets up to four, and four left mounting brackets set up with four right mounting bracket one-to-one, and the left mounting bracket of one-to-one highly is higher than the height of right mounting bracket in Z axle direction, further improves the adjustment ability of mounting bracket 12 along Z axle direction on chassis threshold roof beam. In other embodiments, the specific number of the left and right mounting brackets can be set according to actual needs, for example, two, three, or five.
Optionally, each mounting bracket 12 is provided with a mounting hole, a bushing 14 is mounted in the mounting hole, and the bushing 14 is detachably connected with the chassis threshold beam. In this embodiment, after the mounting bracket 12 is correspondingly adjusted to the position of the chassis rocker, bolts are used to pass through the bushings 14 and are fastened with weld nuts on the chassis rocker. In other embodiments, a connecting sleeve is disposed on the chassis threshold beam, and the bushing 14 is connected with the connecting sleeve in an interference fit manner, or pin holes are formed in both the bushing 14 and the chassis threshold beam, and a bolt is used to pass through the pin holes to connect the bushing 14 and the chassis threshold beam.
In this embodiment, the fixed box 10 further includes a fixed box cover 15, and the fixed box cover 15 is covered and installed on the top of the length frame 11.
In this embodiment, the fixed box 10 further includes a width frame 16, and the width frame 16 is disposed between two adjacent length frames 11.
Most of the existing battery systems comprise a plurality of battery modules 20, each battery module 20 comprises one of a harmonica tube radiator and a liquid cooling plate radiator, when the temperature of a battery core 22 is too high, the radiator 23 can perform heat dissipation and cooling, and when the ambient temperature is too low, the radiator 23 can perform heat supply and heat preservation; when the type of the radiator 23 is determined, and the module case 21 structurally matched with the radiator 23 is selected, the existing module case 21 can only be matched with one type of radiator 23 and cannot be used universally.
As shown in fig. 1 to 4, in order to solve the above problem, the battery module 20 of this embodiment includes a module case 21 installed on the supporting base plate 13, a plurality of battery cells 22 arranged in the module case 21, and a heat sink 23 arranged at the bottom of the battery cells 22, and an abdicating notch 211 for abdicating the heat sink 23 is formed at the bottom of the module case 21. In this embodiment, the radiator 23 may be selected as a harmonica tube radiator or a liquid cold plate radiator. When a harmonica tube radiator is selected, the harmonica tube can pass through the abdicating notch 211, two ends of the harmonica tube respectively extend into the two adjacent battery modules 20, and the abdicating notch 211 of the module box body 21 can abdicate the harmonica tube radiator; when a liquid cold plate radiator is selected, the liquid cold plate radiator may also be disposed at the bottom of two adjacent sets of battery modules 20.
Optionally, the harmonica tube radiator is made of AL3003 material.
Optionally, the battery module 20 further includes a foam 24, the foam 24 is disposed at the bottom of the heat sink 23, and the height of the relief notch 211 is equal to the sum of the heights of the heat sink 23 and the foam 24. Module box 21 can compress tightly radiator 23 and bubble cotton 24 on supporting baseplate 13, and bubble cotton 24 can provide sufficient holding power for radiator 23 to realize the thermal insulation, avoid the heat of radiator 23 to scatter and disappear fast under the low temperature heating condition.
Optionally, an aerogel pad 25 is disposed between two adjacent battery cells 22. Aerogel pad 25 can slow down the heat that produces when single electric core 22 takes place thermal runaway to the driven speed of adjacent electric core 22, reduces the direction that whole battery module 20 takes place the thermal diffusion, improves battery system's security.
Optionally, the module box 21 includes an end plate 212, a side plate 213 and an upper box cover 214, the end plate 212 and the side plate 213 enclose a four-side frame, the upper box cover 214 covers and is installed at the top of the four-side frame, the abdicating notch 211 is opened at the bottom of the end plate 212, and the two sides of the end plate 212 are opened along the Z-axis direction with a mounting through hole, the support base plate 13 is opened with a connecting through hole corresponding to the mounting through hole, and the mounting through hole is connected with the connecting through hole through a rivet nut 26. Can improve the installation effectiveness through rivet nut 26 high-speed joint between module box 21 and the supporting baseplate 13.
Optionally, the blind rivet nut 26 is made of steel.
Optionally, the battery module 20 further includes an insulation sheet 27, and the insulation sheet 27 is disposed between the battery cell 22 and the end plate 212. The insulation sheet 27 can prevent insulation damage caused by abrasion between the battery cell 22 and the end portion.
Optionally, a structural adhesive is disposed between the side plate 213 and the battery cell 22. The battery cell 22 is adhered to the inner wall of the side plate 213 by structural adhesive, and the side plate 213 bears the weight of the battery cell 22, so as to prevent the battery cell 22 from crushing the heat sink 23 located at the bottom thereof.
In the present embodiment, the battery cell 22 is a ternary battery cell.
Optionally, the battery system further includes a mica member, and the inner wall of the fixed box cover 15 and/or the inner wall of the upper box cover 214 are provided with the mica member.
In this embodiment, the inner wall of the fixed box cover 15 and the inner wall of the upper box cover 214 are both provided with a mica member. The mica component on the inner wall of the fixed box cover 15 is a mica plate 17, the mica component on the inner wall of the upper box cover 214 is mica paper 28, and the mica plate 17 and the mica paper 28 are both made of a phlogopite material. In a state where the battery cell 22 is out of control thermally, the mica paper 28 can slow down the impact damage of the high-temperature and high-pressure gas generated by the battery cell 22 on the upper case cover 214, absorb the high-temperature gas, slow down the thermal diffusion time of the battery module 20, and improve the thermal safety of the battery system; in the state where thermal runaway occurs in the battery module 20, the mica plate 17 can alleviate impact damage of high-temperature and high-pressure gas to the stationary case cover 15.
Optionally, the battery system further comprises an explosion-proof valve, and the upper case cover 214 and/or the fixed case cover 15 is/are provided with an explosion-proof valve for discharging out-of-control gas.
In this embodiment, the upper case cover 214 and the upper case cover 214 are provided with an explosion-proof valve, and the explosion-proof valve can timely discharge high-temperature and high-pressure gas generated when the battery cell 22 is out of thermal runaway.
Optionally, the battery system further comprises an acquisition control unit, the acquisition control unit comprises a low-voltage wire harness and a BMS, and the low-voltage wire harness is electrically connected with the BMS. The low-voltage wire harness is used for collecting data such as battery voltage and temperature and controlling the input and output of the MBS according to the collected data and the logic control of software. The BMS is a battery management system.
Optionally, the battery system further includes a high-voltage power unit, where the high-voltage power unit includes a high-voltage connection aluminum bar and a BDU, and the high-voltage power unit is used for carrying input and output of current of the battery module 20.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (12)

1. A battery system comprising a battery module (20) and a stationary case (10), said battery module (20) being mounted in said stationary case (10), characterized in that said stationary case (10) comprises:
the mounting bracket comprises at least two length frames (11) arranged at intervals, wherein a plurality of mounting brackets (12) are arranged on each length frame (11) along the length direction of the length frame, the mounting brackets (12) are used for being connected with a chassis threshold beam, and the heights of the mounting brackets (12) arranged along the Y axis and arranged on the same length frame (11) are sequentially decreased progressively in the Z axis direction;
and the supporting bottom plate (13) is connected between two adjacent length frames (11) and is used for bearing the battery module (20).
2. The battery system according to claim 1, wherein two adjacent length frames (11) are respectively a left frame and a right frame, the mounting bracket (12) mounted on the left frame is a left mounting bracket, the mounting bracket (12) mounted on the right frame is a right mounting bracket, the left mounting bracket and the right mounting bracket are arranged in a one-to-one correspondence, and the height of the one-to-one correspondence of the left mounting bracket in the Z-axis direction is not equal to the height of the right mounting bracket.
3. The battery system according to claim 1, wherein each mounting bracket (12) is provided with a mounting hole, a bushing (14) is mounted in the mounting hole, and the bushing (14) is detachably connected with the chassis threshold beam.
4. The battery system according to claim 1, wherein the battery module (20) comprises a module box (21) installed on the support base plate (13), a plurality of battery cells (22) arranged in the module box (21), and a heat sink (23) arranged at the bottom of the battery cells (22), and an abdicating notch (211) for abdicating the heat sink (23) is formed at the bottom of the module box (21).
5. The battery system of claim 4, wherein the heat sink (23) is a harmonica tube heat sink or a liquid-cooled plate heat sink.
6. The battery system according to claim 4, wherein the battery module (20) further comprises foam (24), the foam (24) is disposed at the bottom of the heat sink (23), and the height of the relief notch (211) is equal to the sum of the heights of the heat sink (23) and the foam (24).
7. The battery system according to claim 4, wherein an aerogel pad (25) is arranged between two adjacent battery cells (22).
8. The battery system according to any one of claims 5 to 7, wherein the module case (21) comprises an end plate (212), a side plate (213) and an upper case cover (214), the end plate (212) and the side plate (213) define a four-sided frame, the upper case cover (214) is mounted on the top of the four-sided frame in a covering manner, the abdicating notch (211) is formed in the bottom of the end plate (212), mounting through holes are formed in two sides of the end plate (212) along the Z-axis direction, the supporting base plate (13) is provided with connecting through holes corresponding to the mounting through holes, and the mounting through holes are connected with the connecting through holes through rivet nuts (26).
9. The battery system of claim 8, wherein the battery module (20) further comprises an insulating sheet (27), the insulating sheet (27) being disposed between the cell (22) and the end plate (212).
10. The battery system according to claim 8, wherein a structural adhesive is disposed between the side edge plate (213) and the battery cell (22).
11. The battery system according to claim 8, wherein the fixing case (10) further comprises a fixing case cover (15), the fixing case cover (15) is mounted on the top of the length frame (11) in a covering manner, the battery system further comprises a mica member, and the inner wall of the fixing case cover (15) and/or the inner wall of the upper case cover (214) is provided with the mica member.
12. The battery system according to claim 11, further comprising an explosion-proof valve provided on the upper case cover (214) and/or the stationary case cover (15) for discharging a runaway gas.
CN202122827391.2U 2021-11-18 2021-11-18 Battery system Active CN216529124U (en)

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CN115295951A (en) * 2022-08-25 2022-11-04 中国第一汽车股份有限公司 CTC power battery system, battery pack and electric vehicle
WO2023087725A1 (en) * 2021-11-18 2023-05-25 湖北亿纬动力有限公司 Battery system

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JP5960289B2 (en) * 2013-01-10 2016-08-02 日立オートモティブシステムズ株式会社 Battery module
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CN216529124U (en) * 2021-11-18 2022-05-13 湖北亿纬动力有限公司 Battery system

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Publication number Priority date Publication date Assignee Title
WO2023087725A1 (en) * 2021-11-18 2023-05-25 湖北亿纬动力有限公司 Battery system
CN115101875A (en) * 2022-06-01 2022-09-23 东风柳州汽车有限公司 Power battery pack
CN115295951A (en) * 2022-08-25 2022-11-04 中国第一汽车股份有限公司 CTC power battery system, battery pack and electric vehicle

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