CN111312956B - Battery pack, battery pack manufacturing device, and battery pack manufacturing method - Google Patents
Battery pack, battery pack manufacturing device, and battery pack manufacturing method Download PDFInfo
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- CN111312956B CN111312956B CN202010125323.9A CN202010125323A CN111312956B CN 111312956 B CN111312956 B CN 111312956B CN 202010125323 A CN202010125323 A CN 202010125323A CN 111312956 B CN111312956 B CN 111312956B
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- battery pack
- liquid cooling
- lower shell
- plate assembly
- shell frame
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000001816 cooling Methods 0.000 claims abstract description 84
- 238000005192 partition Methods 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims description 50
- 238000002955 isolation Methods 0.000 claims description 27
- 239000000853 adhesive Substances 0.000 claims description 24
- 230000001070 adhesive effect Effects 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 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
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
-
- 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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of 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
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery pack, a battery pack manufacturing apparatus and a battery pack manufacturing method, the battery pack includes: the battery pack lower shell comprises a partition plate and a lower shell frame, the lower shell frame surrounds the periphery of the partition plate, at least one cross beam is arranged on the first side of the lower shell frame, the cross beam divides the space formed by the lower shell frame and the first side of the partition plate into at least one first cavity and one second cavity, the first cavity is provided with a battery module, and the second cavity is provided with a battery management module; the liquid cooling plate assembly is arranged on the second side of the lower shell frame and provided with a plurality of liquid cooling pipes, and the liquid cooling pipes are in surface contact with the area, corresponding to the first chamber, in the second side of the partition plate to perform heat exchange; the liquid cooling plate assembly is sealed on the second side of the lower shell frame by the bottom cover.
Description
Technical Field
The present invention relates to the field of battery packs, and more particularly, to a battery pack, a battery pack manufacturing apparatus, and a battery pack manufacturing method.
Background
International energy agency targets: realizing global CO by 2050 2 The emission is reduced by 50% on a 2005 basis. Among them, the emission of greenhouse gases in the transportation field is reduced to 30%, which requires rapid expansion of market share of new energy vehicles and promotion of development of new energy vehicle technology. The power battery system is used as a driving system of the new energy automobile and is the key point of urgent research in the development process of the new energy automobile.
A power battery system generally includes a battery module, a battery management system, a structural member, a sensor, a wiring harness, a thermal management system, an accessory, and the like. During the charging and discharging process of the battery pack, especially during the charging and discharging process with large multiplying power, a large amount of heat can be generated, so that the temperature of the modules is too high, the temperature difference between the modules is large, and the performance and the safety of the power battery system are influenced. Therefore, a necessary thermal management system is required to control the battery pack to always operate in a proper temperature range.
In the prior art, a liquid cooling system is mostly adopted in a thermal management system of a battery pack. The plurality of small-size liquid cooling plates are directly arranged between the bottom of the module and the battery box body, and the plurality of liquid cooling plates are connected through pipelines. According to the scheme, the connecting pipeline system is complex, the leakage risk points are many, and potential safety hazards exist.
Accordingly, the present invention provides a battery pack, a battery pack manufacturing apparatus, and a battery pack manufacturing method.
Disclosure of Invention
The invention aims to provide a battery pack, a battery pack manufacturing device and a battery pack manufacturing method, which overcome the difficulties in the prior art, can realize water and electricity isolation between a battery module and a battery management module, and greatly improve the use safety of the battery pack.
An embodiment of the present invention provides a battery pack, including:
the battery pack lower shell comprises a partition plate and a lower shell frame, the lower shell frame surrounds the periphery of the partition plate, the lower shell frame is provided with a first side and a second side opposite to the first side, the first side of the lower shell frame is provided with at least one cross beam, the cross beam divides a space formed by the lower shell frame and the first side of the partition plate into at least one first cavity and one second cavity, each first cavity is provided with a battery module, each second cavity is provided with a battery management module, and the battery management modules are electrically connected with the battery modules;
the liquid cooling plate assembly is arranged on the second side of the lower shell frame and provided with a plurality of liquid cooling pipes, and the liquid cooling pipes are in surface contact with the area corresponding to the first chamber in the second side of the isolating plate to perform heat exchange; and
and the liquid cooling plate assembly is sealed at the second side of the lower shell frame by the bottom cover.
Preferably, one side of the liquid cooling pipe is coated with heat-conducting structural adhesive, and the heat-conducting structural adhesive is glued with the isolation plate.
Preferably, the heat-conducting structural adhesive is coated along the reciprocating broken line track along the extension direction of the liquid cooling pipe.
Preferably, the liquid cooling pipes are at least arranged in the area corresponding to the first chamber, and the liquid cooling plate assembly further comprises an avoidance groove for avoiding the beam of the lower shell frame.
Preferably, the liquid cooling plate assembly further comprises two parallel collecting pipes, two ends of the liquid cooling pipe are respectively connected to the collecting pipes, and the collecting pipes are embedded in the grooves of the lower shell frame.
Preferably, a heat conduction material is filled between the battery module and the isolation plate for heat exchange.
Preferably, the bottom cover has a reinforcing rib protruding toward the liquid cooling plate assembly.
An embodiment of the present invention further provides a battery pack manufacturing apparatus for manufacturing the battery pack, including:
the supporting tool is provided with a supporting piece corresponding to the position of the battery module in the first cavity;
the downward pressing tool is arranged above the supporting tool and is provided with a combined downward pressing plate corresponding to the position of the battery module in the first cavity, a downward pressing cylinder and a guide post, and the downward pressing cylinder and the guide post drive the combined downward pressing plate to move towards the supporting tool; and
and the control electric cabinet is electrically connected with the pressing tool.
Preferably, the surface of the combined lower pressure plate is coated with a plastic steel shell.
The embodiment of the invention also provides a battery pack manufacturing method, which adopts the battery pack manufacturing device and comprises the following steps:
placing a battery pack lower shell to be assembled on the supporting tool, wherein a supporting piece of the supporting tool supports the position of the first cavity in the first side of the lower shell frame;
pressing the liquid cooling plate assembly coated with the heat-conducting structural adhesive to the second side of the lower shell frame by a pressing tool, so that the liquid cooling plate assembly is tightly attached to the lower shell frame; and
and screwing the bottom cover to the second side of the lower shell frame, and sealing the liquid cooling plate assembly on the second side of the lower shell frame.
The battery pack, the battery pack manufacturing device and the battery pack manufacturing method can realize water and electricity isolation between the battery module and the battery management module, and greatly improve the use safety of the battery pack.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
Fig. 1 is a schematic view of a first side of a lower case frame of a battery pack according to the present invention.
Fig. 2 is a schematic view of the second side-mounted liquid cooled plate assembly and the bottom cover of the lower case frame of the battery pack according to the present invention.
Fig. 3 is a schematic view of a liquid cooled plate assembly of the battery pack of the present invention.
Fig. 4 is a schematic diagram of the liquid cooling plate assembly of the battery pack coated with the heat-conducting structural adhesive.
Fig. 5 is a schematic diagram of the battery pack according to the present invention after the bonding of the heat conducting structure glue on the liquid cooling plate assembly.
Fig. 6 is a schematic view of a battery pack manufacturing apparatus of the present invention.
Fig. 7 is a schematic view of a press-down tool in the battery pack manufacturing apparatus of the present invention.
Fig. 8 is a schematic view of a support means in the battery pack manufacturing apparatus of the present invention.
Fig. 9 is a flowchart of a method of manufacturing a battery pack of the present invention.
Reference numerals
1. Lower casing frame
11. Groove
12. A first chamber
13. Second chamber
14. Cross beam
2. Partition board
4. Liquid cooling plate assembly
41. Liquid cooling pipe
42. Collecting pipe
5. Elastic support
6. Bottom cover
7. Heat-conducting structural adhesive after coating
8. Heat-conducting structural adhesive after lamination
9. Support tool
91. Support piece
10. Pressing tool
101. Cylinder
102. Guide post
103. Combined lower pressing plate
104. Plastic-steel shell
15. Device frame
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus, a repetitive description thereof will be omitted.
The invention aims to solve the problems of complex system, multiple leakage risk points, potential safety hazards and the like in the prior art, so that the novel battery pack preparation method has the advantages of water and electricity isolation, high safety, low cost, high automation degree and the like. The liquid cooling plate assembly and the module are arranged in two independent chambers to form a dry-wet separation area, so that the leakage risk is greatly reduced, and the safety is high. The pressing process is adopted to solve the problems of uneven filling and large use amount of heat conducting structure materials between the liquid cooling plate assembly and the isolation plate, and the pressing force, the pressing stroke and the supporting height can be adjusted, so that the battery pack can be adapted to various requirements.
Fig. 1 is a schematic view of a first side of a lower case frame of a battery pack according to the present invention. Fig. 2 is a schematic view of the liquid cooling plate assembly and the bottom cover mounted to the second side of the lower case frame of the battery pack according to the present invention. Fig. 3 is a schematic view of a liquid cooled plate assembly of the battery pack of the present invention. Fig. 4 is a schematic view illustrating the application of a heat conductive structure adhesive on a liquid cooling plate assembly of a battery pack according to the present invention. Fig. 5 is a schematic diagram of the battery pack according to the present invention after the bonding of the heat conducting structure glue on the liquid cooling plate assembly. As shown in fig. 1 to 5, an embodiment of the present invention provides a battery pack including: a battery pack lower shell, a liquid cooling plate assembly 4 and a bottom cover 6. The casing includes a division board 2 and casing frame 1 down under the battery package, casing frame 1 encircles the periphery of division board 2 down, casing frame 1 has the first side down and the second side that deviates from mutually with the first side, casing frame 1's first side is equipped with an at least crossbeam 14 down, crossbeam 14 is divided into an at least first cavity 12 and a second cavity 13 with the space that casing frame 1 and division board 2's first side formed down, every first cavity 12 sets up a battery module, second cavity 13 sets up battery management module, battery management module is connected with the battery module electricity. The liquid cooling plate assembly 4 is disposed on the second side of the lower housing frame 1, the liquid cooling plate assembly 4 has a plurality of liquid cooling pipes 41, and the liquid cooling pipes 41 are in surface contact with the area corresponding to the first chamber 12 in the second side of the isolation plate 2 for heat exchange. The bottom cover 6 seals the liquid cooling plate assembly 4 to the second side of the lower housing frame 1, but not limited thereto.
In a preferred embodiment, one side of the liquid cooling pipe 41 is coated with a heat conductive structural adhesive, and the heat conductive structural adhesive is bonded to the partition plate 2 by the heat conductive structural adhesive, but not limited thereto.
In a preferred embodiment, the heat conductive structural adhesive is coated along the reciprocating broken line path along the extending direction of the liquid cooling pipe 41. The liquid cooling pipes 41 are at least arranged in the corresponding area of the first chamber 12, and the liquid cooling plate assembly 4 further includes an avoiding groove for avoiding the cross beam 14 of the lower housing frame 1, but not limited thereto.
In a preferred embodiment, the liquid cooling plate assembly 4 further includes two parallel collecting pipes 42, two ends of the liquid cooling pipe 41 are respectively connected to the collecting pipes 42, and the collecting pipes 42 are embedded in the groove 11 of the lower housing frame 1, but not limited thereto.
In a preferred embodiment, the heat conducting material is filled between the battery module and the separator 2 for heat exchange, but not limited thereto.
In a preferred embodiment, the bottom cover 6 has a reinforcing rib protruding toward the liquid cooling plate assembly 4, but not limited thereto.
Referring to fig. 1 to 5, in the present embodiment, the battery pack mainly includes: lower casing frame 1, division board 2, liquid cooling plate assembly 4 and bottom 6. The battery module is arranged above the isolation plate 2, and heat transfer between the isolation plate and the isolation plate is timely carried out by filling heat conduction materials between the isolation plate and the isolation plate. The liquid cooling plate assembly 4 is arranged on the back of the isolation plate 2, and the isolation plate 2 separates the liquid cooling plate assembly 4 from the battery module to form two independent chambers, so that the purpose of 'dry-wet separation' can be achieved. Heat conduction structure glue is filled between the liquid cooling plate assembly 4 and the isolation plate 2, so that heat transfer can be timely carried out, certain structural strength can be formed, and the vibration requirement of the whole vehicle is met. The size of the liquid cooling plate assembly 4 is about 1.8 x 1.0m, and the whole is welded. With such a large size, the flatness between the 16 liquid cooling tubes 41 is not less than 2, and if the heat conducting structure adhesive is completely filled with the flatness 2, the usage amount of the heat conducting structure adhesive is inevitably large, so a new battery pack preparation method is provided. The heat-conducting structural adhesive is coated on 16 liquid-cooled tubes or on the back of the partition board 2 at the corresponding position according to the gluing track shown in fig. 4. The coated heat-conducting structural adhesive 7 forms a plurality of V-shaped arranged gluing tracks, which is beneficial to discharging air in the pressing process and forming good heat-conducting filling. And then the liquid cooling plate assembly 4 and the lower shell are preliminarily assembled, wherein the inlet and outlet collecting pipes 42 of the liquid cooling plate are installed in the groove 11 of the lower shell, so that the liquid cooling plate assembly and the lower shell can be well fixed. On the liquid cooling plate assembly 4, a pressing tool is used for applying a certain pressure to press the heat conducting structural adhesive to extend around, the gap between the liquid cooling plate assembly 4 and the isolation plate 2 is completely filled, and the heat conducting structural adhesive 8 forms a plane shape after pressing as shown in fig. 5.
The battery pack mainly comprises a lower shell frame 1, an isolation plate 2, a liquid cooling plate assembly 4, an elastic support 5 and a bottom cover 6. The lower shell structure frame is divided into five cavity areas through the cross beam, wherein one area is used for installing electric elements such as a battery management system and a battery system distribution box, and the other four areas are installation areas of the battery module. The battery module is installed on the division board, fills the heat conduction material between the two, carries out heat transfer in time. The liquid cooling plate assembly is arranged below the isolation plate, two independent cavities are formed through the isolation plate, and the liquid cooling plate assembly and the battery module are respectively arranged in the two separated cavities to form a dry-wet separation structure. This greatly reduces the risk of leakage safety. Heat conducting structural materials are filled between the liquid cooling plate assembly and the isolation plate, heat is transferred in and out in time, and the problems of uneven filling and large using amount of the heat conducting structural materials are solved through a pressing process. The pressing process can adjust the down pressure, the down pressing stroke and the supporting height and can be adapted to battery packs with various requirements. Moreover, the inlet and outlet collecting pipes on the liquid cooling plate assembly are embedded into special clamping grooves on the boundary beam of the lower shell, so that good installation and fixation can be realized. The elastic support 5 is adhered to the back of the liquid cooling plate assembly, and after the elastic support is pressed by the bottom shell, a certain compression amount is formed, so that sufficient supporting force is provided for the liquid cooling plate assembly, and the vibration requirement of the whole vehicle is completely met in the service life cycle of the battery pack.
Fig. 6 is a schematic view of a battery pack manufacturing apparatus of the present invention. Fig. 7 is a schematic view of a press-down fixture in the battery pack manufacturing apparatus of the present invention. Fig. 8 is a schematic view of a support means in the battery pack manufacturing apparatus of the present invention. As shown in fig. 6 to 8, an embodiment of the present invention further provides a battery pack manufacturing apparatus for manufacturing the above battery pack, including: a supporting tool 9, a pressing tool 10, a control electric cabinet and a device frame 15. The support tool 9 has a support 91 corresponding to the position of the battery module in the first chamber 12. The pressing tool 10 is arranged above the supporting tool 9, and the pressing tool 10 is provided with a combined pressing plate corresponding to the position of the battery module in the first chamber 12, and a pressing cylinder 101 and a guide post 102 for driving the combined pressing plate 103 to move towards the supporting tool 9. The electric control cabinet is electrically connected with the pressing tool 10.
In a preferred embodiment, the surface of the combined lower pressure plate is covered with a plastic steel shell 104.
Referring to fig. 6, the preliminarily assembled battery pack lower shell is placed on the operating table, and the supporting tool 9 is used for supporting the isolation plate to prevent the isolation plate from being stressed and lying down in the pressing process. The steel plate structure of the support tool 9 is coated with a plastic steel material (plastic steel shell 104) to avoid scratching the lower shell. The height of the support tooling 9 can be varied to accommodate battery packs of various requirements. The pressing tool 10 provides a pressing force and mainly comprises a pressing cylinder 101, a guide column and sleeve member 102 and a combined pressing plate 103. Wherein, the down-pressure cylinder 101 is used for providing stable and adjustable down-pressure, the guide post and sleeve component 102 is used for controlling the displacement in the vertical direction, and the combined down-pressure plate 103 is used for providing a down-pressure surface. The steel plate structure on the combined lower pressing plate 103 is coated with plastic steel materials to avoid scratching the liquid cooling plate assembly 4. The combined lower pressing plate 103 avoids the arrangement area of the elastic supports 5 according to the arrangement positions of the elastic supports 5 on the liquid cooling plate assembly 4 to form a concave shape, so that the maximum pressing area can be ensured, partial materials can be saved, and the weight is reduced. According to the arrangement mode of four cavities of the installation module in the lower shell, the pressing cylinder 101, the guide columns and the sleeve piece 102 and the combined pressing plate 103 also form four same pressing areas which are in one-to-one correspondence with the four cavities. The control electric cabinet is used for controlling the pressing device and outputting adjustable pressure, stroke and pressure maintaining time. The aluminum profile protective frame is used for providing a supporting frame of the pressing device and providing a safe and reliable operation environment.
After the pressing process, an adsorption force is formed between the liquid cooling plate assembly 4 and the isolation plate 2, and meanwhile, the preliminary bonding force effect of the heat conduction structural adhesive is achieved, so that good heat conduction material filling can be formed between the liquid cooling plate assembly 4 and the isolation plate 2. The bottom cover 6 is then completely assembled with the lower case 1 through a spin-tapping-riveting (FDS) process. The elastic support 5 has compressibility, and a certain amount of compression can provide corresponding compressive stress, so that the liquid cooling plate assembly 4 and the lower shell isolation plate 2 are tightly attached to each other, and the vibration requirement of the whole vehicle is met. The bottom cover 6 is provided with convex hulls protruding towards the liquid cooling plate assembly 4, and the convex hulls can not only enhance the structural strength of the bottom cover 6, but also reduce the gap between the bottom cover 6 and the elastic support 5 and reduce the using amount of the elastic support.
Fig. 9 is a flowchart of a method of manufacturing a battery pack of the present invention. As shown in fig. 9, an embodiment of the present invention further provides a battery pack manufacturing method, which includes the following steps:
s101, placing a battery pack lower shell to be assembled on a supporting tool 9, wherein a supporting piece 91 of the supporting tool 9 supports the position of a first cavity 12 in the first side of a lower shell frame 1;
s102, pressing the liquid cooling plate assembly 4 coated with the heat-conducting structural adhesive to the second side of the lower shell frame 1 by the pressing tool 10, and enabling the liquid cooling plate assembly 4 to be tightly attached to the lower shell frame 1; and
s103, screwing the bottom cover 6 to the second side of the lower shell frame 1, and sealing the liquid cooling plate assembly 4 to the second side of the lower shell frame 1. The related technical features are as described above and will not be described herein again.
In summary, the battery pack manufacturing device and the battery pack manufacturing method provided by the invention can realize water and electricity isolation between the battery module and the battery management module, and greatly improve the use safety of the battery pack.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (7)
1. A battery pack, comprising:
the battery pack lower shell comprises a partition plate (2) and a lower shell frame (1), the lower shell frame (1) surrounds the periphery of the partition plate (2), the lower shell frame (1) is provided with a first side and a second side opposite to the first side, the first side of the lower shell frame (1) is provided with at least one cross beam (14), the cross beam (14) divides a space formed by the lower shell frame (1) and the first side of the partition plate (2) into at least one first cavity (12) and one second cavity (13), each first cavity (12) is provided with a battery module, the second cavity (13) is provided with a battery management module, and the battery management modules are electrically connected with the battery modules;
the liquid cooling plate assembly (4) is arranged on the second side of the lower shell frame (1), the liquid cooling plate assembly (4) is provided with a plurality of liquid cooling pipes (41), and the liquid cooling pipes (41) are in surface contact with the area, corresponding to the first chamber (12), in the second side of the isolating plate (2) for heat exchange; and
a bottom cover (6), said bottom cover (6) closing said cold plate assembly (4) to said second side of said lower housing frame (1);
one side of the liquid cooling pipe (41) is coated with heat-conducting structural adhesive, and the heat-conducting structural adhesive is glued with the isolation plate (2);
the liquid cooling plate assembly (4) further comprises two parallel collecting pipes (42), two ends of the liquid cooling pipe (41) are respectively connected to the collecting pipes (42), and the collecting pipes (42) are embedded in the grooves (11) of the lower shell frame (1);
wherein the bottom cover (6) is provided with a reinforcing rib protruding towards the liquid cooling plate assembly (4); and an elastic support (5) is also arranged between the liquid cooling plate assembly (4) and the isolating plate (2).
2. The battery pack according to claim 1, wherein the heat conductive structural adhesive is coated along a reciprocating fold line trajectory in the extension direction of the liquid-cooled tube (41).
3. The battery pack according to claim 1, wherein the liquid-cooled tube (41) is arranged at least in a region corresponding to the first chamber (12), and the liquid-cooled plate assembly (4) further comprises an avoidance groove for avoiding the cross member (14) of the lower housing frame (1).
4. The battery pack according to claim 1, wherein the battery modules and the separator (2) are filled with a thermally conductive material for heat exchange.
5. A battery pack manufacturing apparatus for manufacturing the battery pack according to claim 1, comprising:
the supporting tool (9) is provided with a supporting piece (91) corresponding to the position of the battery module in the first cavity (12);
the downward pressing tool (10) is arranged above the supporting tool (9), and the downward pressing tool (10) is provided with a combined downward pressing plate corresponding to the position of the battery module in the first cavity (12), and a downward pressing cylinder and a guide post which drive the combined downward pressing plate to move towards the supporting tool (9); and
and the control electric cabinet is electrically connected with the pressing tool (10).
6. The battery pack manufacturing apparatus according to claim 5, wherein a surface of the combined lower pressing plate is covered with a plastic steel casing.
7. A battery pack manufacturing method using the battery pack manufacturing apparatus according to claim 5, characterized by comprising the steps of:
placing a battery pack lower shell to be assembled on the supporting tool, wherein a supporting piece of the supporting tool supports the position of the first cavity in the first side of the lower shell frame;
the liquid cooling plate assembly coated with the heat-conducting structural adhesive is pressed on the second side of the lower shell frame by the pressing tool, and two parallel collecting pipes of the liquid cooling plate assembly are embedded in the groove of the lower shell frame, so that the liquid cooling plate assembly is tightly attached to the lower shell frame; and
and screwing the bottom cover on the second side of the lower shell frame, sealing the liquid cooling plate assembly on the second side of the lower shell frame, and adhering the elastic support to one surface, facing the battery pack lower shell, of the liquid cooling plate assembly.
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| CN112382781B (en) * | 2020-08-26 | 2022-03-18 | 万向一二三股份公司 | Anchor clamps are transported to electricity core |
| CN212659592U (en) * | 2020-09-08 | 2021-03-05 | 伟巴斯特车顶供暖***（上海）有限公司 | Cooling device for a power battery system and power battery system for a vehicle |
| CN217788522U (en) * | 2021-12-07 | 2022-11-11 | 北京车和家汽车科技有限公司 | Battery cooling system, battery pack and vehicle |
| CN114335862B (en) * | 2022-03-11 | 2022-05-17 | 中创新航科技股份有限公司 | Battery device and method for assembling battery device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008235170A (en) * | 2007-03-23 | 2008-10-02 | Nec Tokin Corp | Lithium-ion secondary battery pack |
| WO2011007534A1 (en) * | 2009-07-17 | 2011-01-20 | パナソニック株式会社 | Battery module and battery pack using the same |
| JP2018170211A (en) * | 2017-03-30 | 2018-11-01 | 株式会社東芝 | Battery pack and battery pack module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100884942B1 (en) * | 2006-09-18 | 2009-02-23 | 주식회사 엘지화학 | Battery Pack Manufacturing Equipment |
| FR2986190B1 (en) * | 2012-02-01 | 2015-02-27 | Plastic Omnium Cie | CASE FOR ELECTRICAL MODULE OF A BATTERY PACK FOR MOTOR VEHICLE AND BATTERY PACK FOR MOTOR VEHICLE |
| CN109148771B (en) * | 2018-08-23 | 2021-07-23 | 北京新能源汽车股份有限公司 | Battery pack |
| CN109980315A (en) * | 2019-02-26 | 2019-07-05 | 重庆金康动力新能源有限公司 | Battery component and its assembly method |
| CN109686894A (en) * | 2019-03-05 | 2019-04-26 | 爱驰汽车有限公司 | Battery pack |
-
2020
- 2020-02-27 CN CN202010125323.9A patent/CN111312956B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008235170A (en) * | 2007-03-23 | 2008-10-02 | Nec Tokin Corp | Lithium-ion secondary battery pack |
| WO2011007534A1 (en) * | 2009-07-17 | 2011-01-20 | パナソニック株式会社 | Battery module and battery pack using the same |
| JP2018170211A (en) * | 2017-03-30 | 2018-11-01 | 株式会社東芝 | Battery pack and battery pack module |
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