CN114221077A - Battery device and working machine - Google Patents
Battery device and working machine Download PDFInfo
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- CN114221077A CN114221077A CN202111342515.6A CN202111342515A CN114221077A CN 114221077 A CN114221077 A CN 114221077A CN 202111342515 A CN202111342515 A CN 202111342515A CN 114221077 A CN114221077 A CN 114221077A
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- 239000007788 liquid Substances 0.000 claims abstract description 54
- 238000001816 cooling Methods 0.000 claims abstract description 50
- 238000005070 sampling Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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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
- H01M10/65—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
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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
- H01M10/65—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
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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
- 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
-
- 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
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- 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)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery device and a working machine, wherein the battery device comprises a plurality of battery boxes, the number of the battery boxes can be selectively used for the working machine, and each battery box comprises: the box body comprises a frame and a plurality of layers of supporting plates arranged in the frame, and the plurality of layers of supporting plates are distributed at intervals along the vertical direction; the battery modules are arranged on the supporting plates of all layers and are connected in series through circuits; the liquid cooling plates are distributed on the supporting plates of all layers and are used for exchanging heat with the battery modules on the supporting plates of all layers; the strong and weak current plug-in terminal is arranged on the box body and is electrically connected with the battery module; and the liquid cooling connector is provided with a port for connecting with an external liquid cooling pipe and is connected with each liquid cooling plate through a pipeline. With the adoption of the battery device and the operation machine, the technical problem of difficulty in battery replacement due to heavy weight of a large-capacity battery in the battery replacement process can be effectively solved.
Description
Technical Field
The invention relates to the technical field of working machinery, in particular to a battery device and the working machinery.
Background
With the popularization of new energy operation machines, the mode of changing the battery of the new energy operation machine is more and more emphasized in the field.
Because the operation machinery has the characteristics of long working time, large electric quantity demand, mostly closed scene construction and the like, compared with charging, the battery replacement has the advantages of short battery replacement time, stable charging power, small power grid impact and the like.
Further, in order to meet the cruising demand of the working machine, a mode of combining power conversion and power transmission is often adopted in the prior art, that is, a full-power battery is transmitted to a working site through a vehicle, and the battery to be replaced of the working machine is replaced.
However, the replacement of the entire battery system is performed for all the replacement of the work machine, and the technical problems of heavy weight of the large-capacity battery and difficulty in replacement of the large-capacity battery exist.
Disclosure of Invention
The invention provides a battery device and an operation machine, which can effectively solve the technical problem of difficult battery replacement caused by heavy weight of a large-capacity battery in the battery replacement process.
A first aspect of the present invention provides a battery device including a plurality of battery cases, the number of the battery cases being selectable for a work machine, each of the battery cases including:
the box body comprises a frame and a plurality of layers of supporting plates arranged in the frame, and the plurality of layers of supporting plates are distributed at intervals along the vertical direction;
the battery modules are arranged on the supporting plates of all layers and are connected in series through circuits;
the liquid cooling plates are distributed on the supporting plates of all layers and used for exchanging heat with the battery modules on the supporting plates of all layers;
the strong and weak current plug-in terminal is arranged on the box body and is electrically connected with the battery module;
and the liquid cooling connector is provided with a port for connecting with an external liquid cooling pipe and is connected with the liquid cooling plates through pipelines.
According to the battery device provided by the invention, the strong and weak electric plug terminals and the liquid cooling connector are arranged at the bottom end of the box body.
According to the battery device provided by the invention, the frame is of a cuboid structure, the frame is vertically arranged, and the strong and weak electric plug-in terminals and the liquid cooling connector are arranged at the bottom end of the box body.
According to the battery device provided by the invention, the frame comprises a plurality of profiles which are connected through welding or connecting pieces to form the frame, and the support plate is connected into the frame through welding or connecting pieces.
According to the battery device provided by the invention, each battery module comprises a plurality of battery cells arranged side by side, and the battery cells of the battery modules are connected in series through conductive connecting pieces.
According to the battery device provided by the invention, the lugs of the battery cells are respectively arranged at the front end and the rear end of the battery cells.
The battery device provided by the invention further comprises a sampling circuit, and the sampling circuit is electrically connected with the battery cores on the supporting plates of all layers.
According to the battery device provided by the invention, the battery module is arranged into the battery pack.
According to the battery device provided by the invention, the support plate is arranged into 4-6 layers.
The invention provides a working machine, which comprises a vehicle body and a battery device arranged on the vehicle body, wherein the battery device is the battery device, a plurality of groups of strong and weak electric connecting devices and liquid cooling connecting devices are arranged on the vehicle body, and the strong and weak electric connecting devices and the liquid cooling connecting devices are matched with the strong and weak electric plug-in terminals and the liquid cooling connectors of a battery box.
According to the working machine provided by the invention, the connection directions of the strong and weak electric connection device and the liquid cooling connection device, the strong and weak electric plug-in terminal and the liquid cooling connector are set to be vertical.
Has the advantages that:
according to the technical scheme, the battery device comprises a plurality of battery boxes, the number of the battery boxes applied to the operation machinery can be selected according to actual electric quantity and voltage requirements of the operation machinery, and each battery box is provided with a strong and weak electric plug-in terminal and a liquid cooling connector, so that the temperature of each battery box can be controlled independently, and each battery box can supply power to the operation machinery. When the operation machinery needs to change the electricity, can change every battery box alone, compare in changing a whole battery device, convenient operation.
In a further scheme provided by the invention, the strong and weak electric plug terminals and the liquid cooling connector are arranged at the bottom end of the box body.
So set up, when changing the battery box, when taking out the battery box by operation machinery, only need with the battery box by the direct split that lifts up the battery box of lower supreme direction can realize strong and weak electricity and connect the terminal and liquid cooling connector and operation machinery. Similarly, when the operation machine is installed on the operation machine, the battery is placed on the vehicle body of the operation machine only from top to bottom, the strong and weak electric plug-in terminal and the liquid cooling connector are aligned with the strong and weak electric connecting device and the liquid cooling connecting device of the operation machine, and self-locking of the butt joint structure can be achieved through dead weight of the battery box.
In a further scheme provided by the invention, the frame is of a cuboid structure, the frame is vertically arranged, and the strong and weak electric plug-in terminals and the liquid cooling connector are both arranged at the bottom end of the box body.
With the arrangement, the battery box provided by the invention is in a vertical state when being mounted on the operation machine, the area of the operation machine occupied by a single battery box is smaller, a plurality of battery boxes can be conveniently arranged on the operation machine, and the space utilization rate of the operation machine is effectively improved.
The invention provides a working machine, which comprises a vehicle body and a battery device arranged on the vehicle body, wherein the battery device is the battery device, a plurality of groups of strong and weak electric connecting devices and liquid cooling connecting devices are arranged on the vehicle body, and the strong and weak electric connecting devices and the liquid cooling connecting devices are matched with the strong and weak electric plug-in terminals and the liquid cooling connectors of the battery box. According to the operation machine provided by the invention, each battery box can be respectively arranged on the vehicle body, power is supplied to the operation machine through the plurality of battery boxes, when the battery boxes are replaced, the battery device does not need to be integrally disassembled and replaced, and only each battery box needs to be replaced respectively, so that the battery boxes are small in weight and volume and convenient to replace.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a front view of a battery box in an embodiment of the invention;
fig. 2 is a bottom view of the battery case in the embodiment of the present invention;
FIG. 3 is a side view of a battery box in an embodiment of the invention;
11: a box body; 12: an electric core; 13: a conductive connection member;
14: a sampling circuit; 15: a support plate; 16: a liquid-cooled connector;
17: strong and weak current plug terminals; 18: and (4) liquid cooling the plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of 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 invention.
The battery device and the working machine in the embodiment of the invention are described below with reference to fig. 1 to 3. The embodiment of the invention provides a battery device which comprises a plurality of battery boxes, wherein the specific number of the battery boxes can be set according to the electric quantity requirement of a working machine and the capacity of each battery box.
Each battery box includes a box body 11, a battery module, a liquid cooling plate 18, a strong and weak electric connection terminal 17, and a liquid cooling connector 16. The box body 11 includes a frame and a plurality of layers of supporting plates 15 disposed in the frame, and the plurality of layers of supporting plates 15 are distributed at intervals along a vertical direction. For example, each case 11 may be provided with 4-6 layers of support plates 15, and the support plates 15 may be used to mount battery modules. In particular, the support plate 15 may be a plate-like structure or a frame structure.
Each layer of the supporting plate 15 is provided with a battery module, the battery modules between different layers can be connected in series through a line, and the line is connected with the strong and weak electric plug terminal 17.
A plurality of liquid cooling plates 18 distribute on each layer of backup pad 15, and liquid cooling plate 18 is used for exchanging heat with the battery module on each layer of backup pad 15. This liquid cold plate 18 can be made by heat conduction materials such as copper, aluminium, iron, and liquid cold plate 18 can be provided with the refrigerant passageway or the pipeline that supply the refrigerant medium to flow, and battery module can set up on liquid cold plate 18, realizes battery module's temperature regulation through the refrigerant in the liquid cold plate 18.
The strong and weak current plugging terminal 17 is arranged on the box body 11, the strong and weak current plugging terminal 17 is electrically connected with the battery module, the battery box can be electrically connected with the operation machinery or the charging equipment through the strong and weak current plugging terminal 17, and then the functions of charging and discharging of the battery box, information acquisition and the like are completed.
The liquid-cooled connectors 16 are provided with ports for connection with external liquid-cooled pipes, and the liquid-cooled connectors 16 are connected with the respective liquid-cooled plates 18 through pipes. The liquid-cooled connector 16 is connected to a coolant supply system of the working machine or the charging device via a liquid-cooled pipe, so that the coolant can be guided to the liquid-cooled plate 18, and heat exchange with the battery module is realized.
With such an arrangement, the battery device provided by the embodiment of the invention comprises a plurality of battery boxes, the number of the battery boxes applied to the working machine can be selected according to the actual electric quantity and voltage requirements of the working machine, and as each battery box is provided with the strong and weak electric plug-in terminal 17 and the liquid cooling connector 16, the temperature of each battery box can be independently controlled, and each battery box can supply power to the working machine. When the operation machinery needs to change the electricity, can change every battery box alone, compare in changing a whole battery device, convenient operation.
In a further embodiment, both the strong and weak electrical connector terminals 17 and the liquid-cooled connectors 16 are disposed at the bottom end of the housing 11.
When the battery box is replaced, the battery box is replaced along the vertical direction, for example, when the battery box is taken out by the operation machine, the battery box is directly lifted from the bottom to the top, and the strong and weak electric connection and insertion terminal 17, the liquid cooling connector 16 and the operation machine can be detached. Similarly, when the operation machine is installed on the operation machine, the battery is placed on the vehicle body of the operation machine only from the top to the bottom, the strong and weak electric plug-in terminal 17 and the liquid cooling connector 16 are aligned with the strong and weak electric connecting device and the liquid cooling connecting device of the operation machine, and self-locking of the butt joint structure can be realized through dead weight of the battery box.
The structure of the strong and weak electric connector 17 and the liquid-cooled connector 16 can refer to the strong and weak electric connector and the liquid-cooled connector in the prior art, and the detailed description thereof is omitted.
The strong and weak electric connection terminal 17 and the liquid-cooled connector 16 may be connected to the bottom end of the housing 11 by welding, screwing, or the like.
In a further embodiment, the frame may be provided in a rectangular parallelepiped structure, and the frame is vertically provided, and the strong and weak electrical connection terminals 17 and the liquid-cooled connector 16 are provided at the bottom end of the housing 11.
So set up, the battery box that this embodiment provided is when installing to the operation machinery, is the state of erectting, and the shared operation machinery's of single battery box area is less, can conveniently set up a plurality of battery boxes on the operation machinery, has effectively improved operation machinery's space utilization.
Specifically, the frame may include a plurality of sectional materials, the plurality of sectional materials are overlapped to form a rectangular parallelepiped structure, the sectional materials may be connected by welding or screws, and the support plate 15 may be connected in the frame by welding or connectors.
So set up, the battery box that this embodiment provided is when installing to the operation machinery, is the state of erectting, and the shared operation machinery's of single battery box area is less, can conveniently set up a plurality of battery boxes on the operation machinery, has effectively improved operation machinery's space utilization.
In some embodiments, each battery module includes a plurality of battery cells 12 arranged side by side, specifically, the battery cells 12 may have a plate-shaped structure, the battery cells 12 are in a vertical state, and the plurality of battery cells 12 are stacked, and the battery cells 12 may be connected in series through a conductive connecting member 13. Specifically, the conductive connecting member 13 may be configured as a strip-shaped sheet structure, the battery cell 12 is provided with a tab for connecting with the conductive connecting member 13, and the tab of the battery cell 12 may be connected with the conductive connecting member 13 by welding or screws or other connecting members
In addition, in this embodiment, the battery cells 12 are further connected in series through the sampling circuit 14, the sampling circuit 14 is used to transmit state information of the battery cells 12, and the sampling circuits 14 of each layer are collected together and then connected to the strong and weak current connection terminal 17, the strong and weak current connection terminal 17 may be connected to a battery management system of a working machine or a charging device, and the sampling circuit 14 may be an FPC (flexible printed circuit).
In a further embodiment, the tabs of the battery cells 12 are respectively disposed at the front and rear ends of the battery cells 12, as shown in fig. 1. So set up, the utmost point ear of electric core 12 exposes in electric core 12's front and back both ends, makes things convenient for the series connection between each electric core 12.
Moreover, the tabs of the battery cell 12 are arranged at the front end and the rear end of the battery cell 12, and do not need to occupy the space in the vertical direction, so that the distance between the supporting plates 15 of all layers can be effectively reduced, and the overall height of the battery box is reduced.
It should be noted that in other embodiments, the battery modules disposed on the respective layers of the support plates 15 may also take the form of battery packs.
The embodiment of the invention also provides a working machine, which comprises a vehicle body and a battery device arranged on the vehicle body, wherein the battery device is the battery device in any one of the embodiments, a plurality of groups of strong and weak electric connecting devices and liquid cooling connecting devices are arranged on the vehicle body, and the strong and weak electric connecting devices and the liquid cooling connecting devices are matched with the strong and weak electric plug-in terminals 17 and the liquid cooling connectors 16 of the battery box. The working machine may be embodied as an electric excavator, an electric pump truck, an electric crane, or the like.
So set up, a plurality of battery boxes can be installed on the operation machinery simultaneously, and the strong and weak electricity of each battery box connects terminal 17 and liquid cooling connector 16 and the strong and weak electricity connecting device and the corresponding connection of liquid cooling connecting device on the operation machinery, and then realizes that a plurality of battery boxes supply power to the operation machinery simultaneously to the refrigerant feed system of operation machinery can supply the refrigerant to each battery box, realizes the temperature regulation of battery box.
When the battery device needs to be replaced, the battery box is used as a component unit of the battery device and can be replaced independently, and the battery box is small in weight and size and convenient to replace.
In a further embodiment, the connection direction of the strong and weak electric connection means and the liquid-cooled connection means of the working machine to the strong and weak electric connector terminal 17 and the liquid-cooled connector 16 is set to be a vertical direction. That is, the direction of the strong and weak electric connection device, the liquid cooling connection device, the strong and weak electric connection and disconnection terminal 17, and the liquid cooling connector 16 is vertical, so that when the battery box is replaced and taken out by the operation machine, the battery box can be directly lifted from the bottom to the top, and the strong and weak electric connection and disconnection terminal 17, the liquid cooling connector 16 and the operation machine can be realized. Similarly, when the operation machine is installed on the operation machine, the battery is placed on the vehicle body of the operation machine only from the top to the bottom, the strong and weak electric plug-in terminal 17 and the liquid cooling connector 16 are aligned with the strong and weak electric connecting device and the liquid cooling connecting device of the operation machine, and self-locking of the butt joint structure can be realized through dead weight of the battery box.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. A battery apparatus comprising a plurality of battery cases, the number of battery cases being selectable for a work machine, each of the battery cases comprising:
the box body comprises a frame and a plurality of layers of supporting plates arranged in the frame, and the plurality of layers of supporting plates are distributed at intervals along the vertical direction;
the battery modules are arranged on the supporting plates of all layers and are connected in series through circuits;
the liquid cooling plates are distributed on the supporting plates of all layers and used for exchanging heat with the battery modules on the supporting plates of all layers;
the strong and weak current plug-in terminal is arranged on the box body and is electrically connected with the battery module;
and the liquid cooling connector is provided with a port for connecting with an external liquid cooling pipe and is connected with the liquid cooling plates through pipelines.
2. The battery device of claim 1, wherein said strong and weak electrical connection terminals and said liquid-cooled connectors are disposed at a bottom end of said case.
3. The battery device according to claim 1, wherein the frame is a rectangular parallelepiped structure, and the frame is vertically disposed, and the strong and weak electric connector and the liquid-cooled connector are disposed at a bottom end of the case.
4. The battery device according to claim 3, wherein the frame comprises a plurality of profiles connected by welding or connecting members to form the frame, and the support plate is connected by welding or connecting members to the inside of the frame.
5. The battery device of claim 1, wherein each of the battery modules comprises a plurality of cells arranged side by side, and the cells of the battery modules are connected in series by an electrically conductive connection member.
6. The battery device of claim 5, wherein the tabs of the cells are respectively arranged at the front end and the rear end of the cells.
7. The battery device of claim 5, further comprising sampling circuits electrically connected to the cells on each layer of the support plate.
8. The battery device of claim 1, wherein the battery module is configured as a battery pack.
9. The battery device according to claim 1, wherein the support plate is provided in 4-6 layers.
10. A working machine, characterized by comprising a vehicle body and a battery device arranged on the vehicle body, wherein the battery device is the battery device as claimed in any one of claims 1 to 9, a plurality of groups of strong and weak electric connecting devices and liquid cooling connecting devices are arranged on the vehicle body, and the strong and weak electric connecting devices and the liquid cooling connecting devices are matched with the strong and weak electric plug-in terminals and the liquid cooling connectors of the battery box.
11. The work machine of claim 10, wherein the connection direction of said strong and weak electrical connection means and said liquid-cooled connection means with said strong and weak electrical connector and said liquid-cooled connector is set to be vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342515.6A CN114221077A (en) | 2021-11-12 | 2021-11-12 | Battery device and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342515.6A CN114221077A (en) | 2021-11-12 | 2021-11-12 | Battery device and working machine |
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| Publication Number | Publication Date |
|---|---|
| CN114221077A true CN114221077A (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111342515.6A Pending CN114221077A (en) | 2021-11-12 | 2021-11-12 | Battery device and working machine |
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| CN (1) | CN114221077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979182A (en) * | 2023-09-20 | 2023-10-31 | 南通中集元能集成科技有限公司 | Liquid cooling battery box and energy storage container |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090252994A1 (en) * | 2008-04-04 | 2009-10-08 | Alexander Livingston | Battery pack system |
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| CN103069644A (en) * | 2010-08-16 | 2013-04-24 | 株式会社Lg化学 | Battery module with compact structure and excellent heat radiation characteristics, and medium- or large-sized battery pack |
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| CN116979182A (en) * | 2023-09-20 | 2023-10-31 | 南通中集元能集成科技有限公司 | Liquid cooling battery box and energy storage container |
| CN116979182B (en) * | 2023-09-20 | 2024-03-01 | 南通中集元能集成科技有限公司 | Liquid cooling battery box and energy storage container |
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