CN116666829A - Lithium battery module - Google Patents

Lithium battery module Download PDF

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Publication number
CN116666829A
CN116666829A CN202310807402.1A CN202310807402A CN116666829A CN 116666829 A CN116666829 A CN 116666829A CN 202310807402 A CN202310807402 A CN 202310807402A CN 116666829 A CN116666829 A CN 116666829A
Authority
CN
China
Prior art keywords
cooling liquid
heat dissipation
battery module
lithium battery
placing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310807402.1A
Other languages
Chinese (zh)
Inventor
谢偎东
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.)
Newbay Electronic Technology Suzhou Co ltd
Original Assignee
Newbay Electronic Technology Suzhou Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Newbay Electronic Technology Suzhou Co ltd filed Critical Newbay Electronic Technology Suzhou Co ltd
Priority to CN202310807402.1A priority Critical patent/CN116666829A/en
Publication of CN116666829A publication Critical patent/CN116666829A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • 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
    • H01M50/289—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)
  • Secondary Cells (AREA)

Abstract

The invention belongs to the technical field of lithium batteries, and discloses a lithium battery module, which comprises a shell and a cover body, wherein a supporting plate is arranged below the inside of the shell, the outer side surface of the supporting plate is fixedly connected with the inner wall of the shell, the top of the supporting plate is fixedly connected with a plurality of placing cylinders in a rectangular array, each placing cylinder is internally provided with a battery cell, and the inner cavity of each placing cylinder is matched with the battery cell; the cooling liquid channel is arranged in the wall of the placing cylinder, and a plurality of groups of conveying pipes are arranged on the supporting plate. According to the scheme, the battery cells are placed in the placement barrel, so that the battery cells can be separated from each other to prevent short circuit, heat generated by the battery cells during operation is conducted to the placement barrel, cooling liquid is conveyed into the cooling liquid channel and circulated through the cooling circulation mechanism, the conveying pipe and the branch pipe, and heat on the placement barrel is taken away through flowing cooling liquid, so that rapid heat dissipation of the battery cells is achieved.

Description

Lithium battery module
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a lithium battery module.
Background
The lithium battery module combines a plurality of lithium battery cells together according to a certain connection mode (such as series connection, parallel connection or series-parallel connection mixture, etc.), so as to form an integral battery assembly. The module generally further includes accessories such as a Battery Management System (BMS) and a housing structure for monitoring and managing parameters such as a charge and discharge state, temperature, current, etc. of the battery to ensure safety and stable performance of the battery pack.
The lithium battery module is widely applied to various fields such as electric automobiles, energy storage systems, portable electronic devices and the like. Through combining a plurality of battery monomers together, the lithium battery module can provide higher voltage and capacity, satisfies the demand of different applications. Meanwhile, the modularized design is convenient for the installation, maintenance and replacement of the battery, and the flexibility and reliability of the whole battery system are improved.
However, the current lithium battery module can generate certain heat in the charging and discharging processes, if the heat cannot be timely dissipated, the temperature can rise, and serious safety problems such as the performance of a battery cell is reduced, the capacity loss even causes fire or explosion and the like can be caused, so the lithium battery module with the heat dissipation function is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a lithium battery module.
In order to solve the problems, the invention adopts the following technical scheme.
The lithium battery module comprises a shell and a cover body, wherein a supporting plate is arranged below the inside of the shell, the outer side face of the supporting plate is fixedly connected with the inner wall of the shell, the top of the supporting plate is fixedly connected with a plurality of placing cylinders which are rectangular arrays, battery cells are placed in each placing cylinder, and the inner cavity of each placing cylinder is matched with the battery cells;
the cooling device is characterized in that cooling liquid channels are formed in the walls of the placing cylinders, a plurality of groups of conveying pipes are arranged in the supporting plates, the conveying pipes are located in the middle of the space surrounded by the placing cylinders, branch pipes with the same number as the placing cylinders are connected to the outer sides of the upper ends of the conveying pipes, the branch pipes are communicated with the upper parts of the cooling liquid channels on the placing cylinders, a cooling circulation mechanism is arranged in the shell and located below the supporting plates, and the cooling circulation mechanism is communicated with the cooling liquid channels and the conveying pipes.
As a further description of the above technical solution: the cooling circulation mechanism comprises a cooling liquid tank, a cooler is arranged at the water outlet end of the cooling liquid tank through a conduit, a first circulation pump is arranged at the output end of the cooler through a pipeline, a connecting pipe is arranged at the output end of the first circulation pump through a pipeline, the water inlet connecting pipe is respectively communicated with each conveying pipe, a second circulation pump is arranged at the water inlet end of the cooling liquid tank through a pipeline, a return pipe is arranged at the water inlet end of the second circulation pump through a pipeline, and a plurality of branch pipes and each branch pipe are respectively communicated with the bottom of a cooling liquid channel on the placing cylinder.
As a further description of the above technical solution: the cooling liquid channel is of a spiral structure integrally formed with the placing cylinder, and the placing cylinder is made of heat-conducting and insulating materials.
As a further description of the above technical solution: be provided with the baffle between the adjacent a section of thick bamboo is placed, the lateral surface of baffle and the lateral wall fixed connection of a section of thick bamboo is placed, the baffle is located the top of conveyer pipe, the baffle is the reinforcing plate.
As a further description of the above technical solution: the outside of casing is provided with the heat dissipation auxiliary assembly, the other side that casing and heat dissipation auxiliary assembly correspond has seted up the thermovent.
As a further description of the above technical solution: and the adjacent placing cylinders are not contacted.
As a further description of the above technical solution: the heat dissipation auxiliary assembly comprises a mounting frame which is embedded and arranged on the shell, and a heat dissipation fan is fixedly arranged on a side plate which corresponds to the heat dissipation opening and is close to the outer side of the mounting frame.
As a further description of the above technical solution: and a dustproof net is arranged in the heat dissipation opening.
As a further description of the above technical solution: the number of the radiating fans is plural.
Compared with the prior art, the invention has the advantages that:
1. according to the scheme, the battery cells are placed in the placement barrel, so that the battery cells can be separated from each other to prevent short circuit, heat generated by the battery cells during operation is conducted to the placement barrel, cooling liquid is conveyed into the cooling liquid channel and circulated through the cooling circulation mechanism, the conveying pipe and the branch pipe, and heat on the placement barrel is taken away through flowing cooling liquid, so that rapid heat dissipation of the battery cells is achieved.
2. According to the scheme, the heat dissipation channel is increased on the basis of heat dissipation of the cooling liquid through the heat dissipation auxiliary assembly and the heat dissipation opening, multiple heat dissipation is realized, and the heat dissipation effect is further improved.
3. According to the scheme, the cooling liquid channel is designed into the spiral structure, so that the travel of cooling liquid can be increased, the time for taking away heat on the battery cell is prolonged, and the heat dissipation effect is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the inside of the housing of the present invention;
FIG. 3 is a schematic view of a coolant channel according to the present invention;
fig. 4 is a schematic structural view of the cooling circulation mechanism of the present invention.
The reference numerals in the figures illustrate:
1. a housing; 2. a cover body; 3. a support plate; 4. placing a cylinder; 5. a battery cell; 6. a cooling liquid passage; 7. a delivery tube; 8. a branch pipe; 9. a cooling circulation mechanism; 91. a cooling liquid tank; 92. a cooler; 93. a first circulation pump; 94. a connecting pipe; 95. a second circulation pump; 96. a return pipe; 10. a partition plate; 11. a heat dissipation auxiliary assembly; 111. a mounting frame; 112. a heat radiation fan; 12. a heat radiation port; 13. a dust-proof net.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Referring to fig. 1-4, a lithium battery module comprises a shell 1 and a cover 2, wherein a supporting plate 3 is arranged below the inner part of the shell 1, the outer side surface of the supporting plate 3 is fixedly connected with the inner wall of the shell 1, the top of the supporting plate 3 is fixedly connected with a plurality of placement cylinders 4 in a rectangular array, each placement cylinder 4 is internally provided with a battery cell 5, and the inner cavity of the placement cylinder 4 is matched with the battery cell 5;
the cooling liquid channel 6 has been seted up in the section of thick bamboo wall of placing a section of thick bamboo 4, be provided with multiunit conveyer pipe 7 on the backup pad 3, conveyer pipe 7 is located a plurality of space middle parts of placing a section of thick bamboo 4 and encloses, the upper end outside of conveyer pipe 7 is connected with and places a branch pipe 8 that 4 quantity is unanimous rather than the outside, branch pipe 8 communicates with the cooling liquid channel 6 upper portion of placing on a section of thick bamboo 4, just be provided with cooling circulation mechanism 9 in the casing 1 and be located the below of backup pad 3, cooling circulation mechanism 9 communicates with cooling liquid channel 6 and conveyer pipe 7.
Above-mentioned structure through placing battery cell 5 in placing section of thick bamboo 4, on the one hand can separate each battery cell 5 each other, prevents the short circuit, on the other hand battery cell 5 during operation produce heat will be conducted to place on the section of thick bamboo 4 to through the cooperation of cooling circulation mechanism 9, conveyer pipe 7 and branch pipe 8, carry the coolant liquid to in the coolant liquid passageway 6 and circulate, take away the heat of placing on the section of thick bamboo 4 through the coolant liquid that flows, realize the quick heat dissipation to battery cell 5.
Referring to fig. 4, the cooling circulation mechanism 9 includes a cooling liquid tank 91, a water outlet end of the cooling liquid tank 91 is connected with a cooler 92 through a conduit, an output end of the cooler 92 is connected with a first circulation pump 93 through a pipeline, an output end of the first circulation pump 93 is connected with a connecting pipe 94 through a pipeline, the water inlet end of the cooling liquid tank 91 is respectively communicated with each conveying pipe 7, a water inlet end of the cooling liquid tank 91 is connected with a second circulation pump 95 through a pipeline, a water inlet end of the second circulation pump 95 is connected with a return pipe 96 through a pipeline, a plurality of branch pipes are arranged on the return pipe 96, and each branch pipe is respectively communicated with the bottom of the cooling liquid channel 6 on the placing cylinder 4.
Referring to fig. 3, the cooling liquid channel 6 is of a spiral structure integrally formed with the placement barrel 4, and by designing the cooling liquid channel 6 into a spiral structure, the travel of cooling liquid can be increased, the time of taking away the heat on the battery cell 5 is prolonged, the heat dissipation effect is improved, the placement barrel 4 is made of a heat conducting and insulating material, the heat on the battery cell 5 can be well conducted to the placement barrel 4 and taken away by flowing cooling liquid in the placement barrel 4, and meanwhile, the battery cell 5 can be insulated and protected, and short circuit is prevented.
Referring to fig. 1, a partition board 10 is disposed between adjacent placement cylinders 4, the outer side surface of the partition board 10 is fixedly connected with the side wall of the placement cylinder 4, the partition board 10 is located above the conveying pipe 7, the partition board 10 is a reinforcing plate, the partition board 10 is used for isolating the structure below the partition board 10, so that the structure of the lithium battery module is concise and attractive, and on the other hand, the partition board 10 connects the placement cylinders 4 into a whole, so that the overall structural strength of the placement cylinders 4 is enhanced.
Example two
Referring to fig. 1-2, on the basis of the first embodiment, a heat dissipation auxiliary assembly 11 is disposed on the outer side of the housing 1, a heat dissipation opening 12 is disposed on the other side of the housing 1 corresponding to the heat dissipation auxiliary assembly 11, and a dust screen 13 is disposed in the heat dissipation opening 12. Through heat dissipation auxiliary assembly 11 and thermovent 12, on the radiating basis of coolant liquid, increased the heat dissipation channel, make the radiating effect better.
Specifically, the heat dissipation auxiliary assembly 11 includes a mounting frame 111 embedded and mounted on the housing 1, a heat dissipation fan 112 is fixedly mounted on a side plate of the mounting frame 111 corresponding to the heat dissipation opening 12 and close to the outer side, and the heat dissipation fan 112 is matched with the heat dissipation opening 12 to assist in dissipating heat of the housing 1. The number of the heat dissipation fans 112 is plural, and after one of the heat dissipation fans 112 fails, the other heat dissipation fans 112 can normally operate to dissipate heat in the casing 1.
In addition, the adjacent placing cylinders 4 are not contacted, so that a heat dissipation channel is formed in a gap between the placing cylinders 4, and heat dissipation is facilitated.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.

Claims (9)

1. The utility model provides a lithium battery module, includes casing (1) and lid (2), its characterized in that: a supporting plate (3) is arranged below the inside of the shell (1), the outer side surface of the supporting plate (3) is fixedly connected with the inner wall of the shell (1), the top of the supporting plate (3) is fixedly connected with a plurality of placing cylinders (4) which are rectangular arrays, battery cells (5) are placed in each placing cylinder (4), and the inner cavity of each placing cylinder (4) is matched with each battery cell (5);
the cooling liquid channel (6) has been seted up in the section of thick bamboo wall of placing section of thick bamboo (4), be provided with multiunit conveyer pipe (7) on backup pad (3), conveyer pipe (7) are located a plurality of space middle parts that place section of thick bamboo (4) enclose, the upper end outside of conveyer pipe (7) is connected with branch pipe (8) unanimous rather than outside placing section of thick bamboo (4) quantity, branch pipe (8) with place cooling liquid channel (6) upper portion intercommunication on section of thick bamboo (4), just be provided with cooling circulation mechanism (9) in casing (1) and be located the below of backup pad (3), cooling circulation mechanism (9) communicate with cooling liquid channel (6) and conveyer pipe (7).
2. The lithium battery module according to claim 1, wherein: the cooling circulation mechanism (9) comprises a cooling liquid tank (91), a cooler (92) is arranged at the water outlet end of the cooling liquid tank (91) through a conduit, a first circulating pump (93) is arranged at the output end of the cooler (92) through a pipeline, a connecting pipe (94) is arranged at the output end of the first circulating pump (93) through a pipeline, the connecting pipe (94) is respectively communicated with each conveying pipe (7), a second circulating pump (95) is arranged at the water inlet end of the cooling liquid tank (91) through a pipeline, a return pipe (96) is arranged at the water inlet end of the second circulating pump (95) through a pipeline, and a plurality of branch pipes and each branch pipe are respectively communicated with the bottom of a cooling liquid channel (6) on the placing cylinder (4).
3. The lithium battery module according to claim 1, wherein: the cooling liquid channel (6) is of a spiral structure integrally formed with the placement barrel (4), and the placement barrel (4) is made of heat-conducting and insulating materials.
4. The lithium battery module according to claim 1, wherein: a partition plate (10) is arranged between the adjacent placing cylinders (4), the outer side faces of the partition plates (10) are fixedly connected with the side walls of the placing cylinders (4), the partition plates (10) are located above the conveying pipes (7), and the partition plates (10) are reinforcing plates.
5. The lithium battery module according to claim 1, wherein: the heat dissipation auxiliary assembly (11) is arranged on the outer side of the shell (1), and a heat dissipation opening (12) is formed in the other side of the shell (1) corresponding to the heat dissipation auxiliary assembly (11).
6. The lithium battery module according to claim 5, wherein: the adjacent placing cylinders (4) are not contacted.
7. The lithium battery module according to claim 5, wherein: the heat dissipation auxiliary assembly (11) comprises a mounting frame (111) which is embedded and mounted on the shell (1), and a heat dissipation fan (112) is fixedly mounted on a side plate which corresponds to the heat dissipation opening (12) and is close to the outer side of the mounting frame (111).
8. The lithium battery module according to claim 5, wherein: a dustproof net (13) is arranged in the radiating opening (12).
9. The lithium battery module according to claim 7, wherein: the number of the heat dissipation fans (112) is plural.
CN202310807402.1A 2023-07-04 2023-07-04 Lithium battery module Pending CN116666829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310807402.1A CN116666829A (en) 2023-07-04 2023-07-04 Lithium battery module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310807402.1A CN116666829A (en) 2023-07-04 2023-07-04 Lithium battery module

Publications (1)

Publication Number Publication Date
CN116666829A true CN116666829A (en) 2023-08-29

Family

ID=87717224

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310807402.1A Pending CN116666829A (en) 2023-07-04 2023-07-04 Lithium battery module

Country Status (1)

Country Link
CN (1) CN116666829A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117543129A (en) * 2023-12-20 2024-02-09 新疆阳光电通科技股份有限公司 Intelligent protection type battery energy storage device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117543129A (en) * 2023-12-20 2024-02-09 新疆阳光电通科技股份有限公司 Intelligent protection type battery energy storage device
CN117543129B (en) * 2023-12-20 2024-07-19 新疆阳光电通科技股份有限公司 Intelligent protection type battery energy storage device

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