CN204928300U - Balanced cooling system of lithium cell - Google Patents
Balanced cooling system of lithium cell Download PDFInfo
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- CN204928300U CN204928300U CN201520761672.4U CN201520761672U CN204928300U CN 204928300 U CN204928300 U CN 204928300U CN 201520761672 U CN201520761672 U CN 201520761672U CN 204928300 U CN204928300 U CN 204928300U
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- heat
- cooling system
- lithium battery
- equalizing circuit
- circuit
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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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Abstract
The utility model provides a balanced cooling system of lithium cell, is including the equalizer circuit board and thermal insulation part, system control circuit of each other contact, and the equalizer circuit board is high pressure resistant heat conduction circuit board, is provided with temperature monitoring circuit and a plurality of equalizer circuit on it, and the output of temperature monitoring circuit is connected with control circuit's input one -way signal, and the battery node pair of equalizer circuit on through thermal insulation 0 and lithium cell module should concatenate, and equalizer circuit and the two -way thermal insulation 3 of system control circuit. This design has the characteristics that heat -sinking capability is strong, exothermal process is controllable.
Description
Technical field
The utility model belongs to technical field of battery management, is specifically related to the balanced cooling system of a kind of lithium battery, is applicable to control radiation processes, improve heat-sinking capability.
Background technology
In the face of the immense pressure of energy deficiency and environmental pollution, electric automobile is more and more by the favor of people.Electric automobile replacing oil by electricity, can realize " zero discharge ", noise is low, is the important means solving the energy and environmental problem.Along with the anxiety of petroleum resources and the development of battery technology, electric automobile is close in performance and economy is even better than conventional fuel oil automobile, and starts worldwide to apply gradually.
Present electric automobile mainly uses lithium ion battery module storage of electrical energy.Consisting of of lithium battery module: multiple battery cell parallel connection is a node, multiple node series connection is battery modules.Battery at work, battery management system must be used to carry out operating state detection and management and control to battery, when battery generation voltage is unbalanced, the battery of overtension must be discharged, to ensure the life-span of battery, the process of this electric discharge is called " for battery balanced ".Existing battery equalizing circuit, serious for generating heat time battery balanced, can not improving euqalizing current, cause time for balance long.
Chinese patent: Authorization Notice No. is CN203691015U, authorized announcement date is the equalizing resistance cooling system that the utility model patent on July 2nd, 2014 discloses a kind of new-energy automobile, comprise metal shell, insulating heat-conductive silicagel pad is provided with below metal shell, circuit board is provided with and circuit board upper surface is connected with the equalizing resistance of some even arrangements below insulating heat-conductive silicagel pad, metal shell, insulating heat-conductive silicagel pad and circuit board are parallel to each other, and metal shell and insulating heat-conductive silicagel pad closely attach.To be generated heat the temperature rise caused by equalizing resistance although this utility model can effectively reduce, but the heat that equalizing resistance produces outwards is distributed by insulating heat-conductive silica gel, metal shell, this kind of radiating mode belongs to passive heat radiation, effectively cannot control, be prone to accidents to this radiation processes.
Summary of the invention
The purpose of this utility model is the problem overcoming the uncontrollable radiation processes that prior art exists, the balanced cooling system of the lithium battery providing a kind of radiation processes controlled.
For realizing above object, the technical solution of the utility model is as follows:
The balanced cooling system of a kind of lithium battery, comprise the equalizing circuit plate, the insulating heat-conductive parts that contact with each other, described equalizing circuit plate is connected in series with lithium battery module;
Described cooling system also comprises system, control circuit, and described equalizing circuit plate is high pressure resistant heat-conduction circuit board, is provided with temperature observation circuit and multiple equalizing circuit;
The output of described temperature observation circuit is connected with the input one way signal of control circuit, and described equalizing circuit is corresponding with the battery node on lithium battery module to be connected in series, and equalizing circuit is connected with system, control circuit two-way signaling.
Described cooling system also comprises box-like radiating shell, described equalizing circuit plate, insulating heat-conductive parts, system, control circuit are all positioned at the inside of box-like radiating shell, and the two sides of insulating heat-conductive parts contacts with the inwall of equalizing circuit plate, box-like radiating shell respectively.
The lid that described box-like radiating shell comprises box body and is mated, described equalizing circuit plate, insulating heat-conductive parts, system, control circuit are all positioned at tray interior, and insulating heat-conductive parts contact with the inwall of lid.
Described lid is provided with dissipation of heat medium.
Described dissipation of heat medium is air-cooled or water cooled heat radiating sheet.
The manufactured materials of described box-like radiating shell is aluminium alloy.
Described insulating heat-conductive parts are flexible insulation conducting-heat elements.
Described equalizing circuit is connected in series by external interface is corresponding with battery node.
Compared with prior art, the beneficial effects of the utility model are:
1, the balanced cooling system of a kind of lithium battery of the utility model comprises system, control circuit, equalizing circuit plate is high pressure resistant heat-conduction circuit board, be provided with temperature observation circuit and multiple equalizing circuit, the output of temperature observation circuit is connected with the input one way signal of control circuit, equalizing circuit is corresponding with the battery node on lithium battery module to be connected in series, and equalizing circuit is connected with system, control circuit two-way signaling, in running, temperature observation circuit monitors the actual temperature of equalizing circuit plate in real time, and its detected value is fed back to system, control circuit, this detected value and the temperature alarming value preset can compare by system, control circuit, to judge whether equalizing circuit works on, if detected value exceedes temperature alarming value, system, control circuit will control equalizing circuit and quit work, the design achieves the ACTIVE CONTROL of radiation processes, effectively can avoid the generation of accident.Therefore, the utility model achieves the ACTIVE CONTROL of heat radiation.
2, in the balanced cooling system of a kind of lithium battery of the utility model, equalizing circuit plate adopts high pressure resistant heat-conduction circuit board, be conducive to the uniform heat conduction of whole circuit board, the aluminium alloy that manufactured materials is heat conduction, heat dispersion is good of box-like radiating shell, and lid being provided with dissipation of heat medium, this design further increases the heat-sinking capability of cooling system.Therefore, heat-sinking capability of the present utility model is strong.
Accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present utility model.
Fig. 2 is system architecture diagram of the present utility model.
In figure: equalizing circuit plate 1, temperature observation circuit 11, equalizing circuit 12, insulating heat-conductive parts 2, system, control circuit 3, box-like radiating shell 4, box body 41, lid 42, dissipation of heat medium 5, external interface 6, lithium battery module 7, battery node 71.
Embodiment
Illustrate below in conjunction with accompanying drawing and with embodiment, the utility model to be described in further detail.
See Fig. 1, Fig. 2, the balanced cooling system of a kind of lithium battery, comprise the equalizing circuit plate 1, the insulating heat-conductive parts 2 that contact with each other, described equalizing circuit plate 1 is connected in series with lithium battery module 7;
Described cooling system also comprises system, control circuit 3, and described equalizing circuit plate 1 is high pressure resistant heat-conduction circuit board, is provided with temperature observation circuit 11 and multiple equalizing circuit 12;
The output of described temperature observation circuit 11 is connected with the input one way signal of control circuit 3, and described equalizing circuit 12 is corresponding with the battery node 71 on lithium battery module 7 to be connected in series, and equalizing circuit 12 is connected with system, control circuit 3 two-way signaling.
Described cooling system also comprises box-like radiating shell 4, described equalizing circuit plate 1, insulating heat-conductive parts 2, system, control circuit 3 are all positioned at the inside of box-like radiating shell 4, and the two sides of insulating heat-conductive parts 2 contacts with the inwall of equalizing circuit plate 1, box-like radiating shell 4 respectively.
The lid 42 that described box-like radiating shell 4 comprises box body 41 and is mated, it is inner that described equalizing circuit plate 1, insulating heat-conductive parts 2, system, control circuit 3 are all positioned at box body 41, and insulating heat-conductive parts 2 contact with the inwall of lid 42.
Described lid 42 is provided with dissipation of heat medium 5.
Described dissipation of heat medium 5 is air-cooled or water cooled heat radiating sheet.
The manufactured materials of described box-like radiating shell 4 is aluminium alloy.
Described insulating heat-conductive parts 2 are flexible insulation conducting-heat elements.
Described equalizing circuit 12 is connected in series by external interface 6 is corresponding with battery node 71.
Principle of the present utility model is described as follows:
The utility model proposes the cooling system that a kind of passive heat radiation and ACTIVE CONTROL combine, have the advantages that heat-sinking capability is strong, radiation processes is controlled, when efficiently solving lithium ion battery balanced operation, due to the bad technical problem causing increasing euqalizing current of dispelling the heat.Its specific works principle is as follows:
Passive heat radiation: because in the utility model, equalizing circuit plate 1, insulating heat-conductive parts 2, lid 42, dissipation of heat medium 5 contact successively, therefore the heat being arranged on the heater element generation on equalizing circuit plate 1 can be distributed as much as possible by equalizing circuit plate 1, insulating heat-conductive parts 2, lid 42, dissipation of heat medium 5, thus reduces the temperature of heater element.
ACTIVE CONTROL: equalizing circuit plate 1 is provided with temperature observation circuit 11, for implementing the actual temperature of monitoring equalizing circuit plate 1, and its detected value is fed back to system, control circuit 3, this detected value and the temperature alarming value preset can compare by system, control circuit 3, if detected value exceedes temperature alarming value, system, control circuit 3 will control equalizing circuit and quit work, and the equalization function of cooling system is stopped.
Equalizing circuit plate 1: adopt high pressure resistant heat-conduction circuit board, the heat that heater element on circuit board can not only be distributed effectively conducts to the whole plate face of this circuit board, and can withstand high pressures, prevents from puncturing and leaking electricity.
Insulating heat-conductive parts 2: adopt flexible insulation conducting-heat elements, can ensure that equalizing circuit plate 1 and lid 42 can close contacts, realize good heat trnasfer.
System, control circuit 3: system, control circuit 3 has performer control, internal communication, external communication function in Balance route, system, can meet the demand for control to whole system, and system, control circuit 3 also can have the interface such as externally fed, external communication.
Box body 41, lid 42: by having good heat conductive, the aluminum alloy materials of heat dispersion makes, the heat that insulating heat-conductive parts 2 transmit can be distributed, meanwhile, they coordinate the box like structure formed can play installation and the fixation of whole system, to ensure the stability of whole system.
Dissipation of heat medium 5: for further being dissipated by the heat of lid 42, to guarantee that the temperature of whole system can reduce further.When dissipation of heat medium 5 adopts air-cooled fin, the startup of fan can be controlled by system, control circuit 3 according to the temperature detection value of feedback, carry out wind-force heat radiation.When designing, can determine whether this structure is installed according to the actual radiating requirements of system.
When the battery node of lithium battery module is too much, multiple cooling systems can be used to work respectively, jointly complete balanced heat radiation.
Embodiment 1:
See Fig. 1, Fig. 2, the balanced cooling system of a kind of lithium battery, comprise equalizing circuit plate 1, insulating heat-conductive parts 2, system, control circuit 3, box-like radiating shell 4, described equalizing circuit plate 1 is high pressure resistant heat-conduction circuit board, be provided with temperature observation circuit 11 and multiple equalizing circuit 12, the output of described temperature observation circuit 11 is connected with the input one way signal of control circuit 3, described equalizing circuit 12 is connected in series by external interface 6 is corresponding with the battery node 71 on lithium battery module 7, and equalizing circuit 12 is connected with system, control circuit 3 two-way signaling, described insulating heat-conductive parts 2 are flexible insulation conducting-heat elements, the manufactured materials of described box-like radiating shell 4 is aluminium alloy, the lid 42 comprising box body 41 and be mated, equalizing circuit plate 1, insulating heat-conductive parts 2, it is inner that system, control circuit 3 is all positioned at box body 41, and equalizing circuit plate 1 is contacted by the inwall of insulating heat-conductive parts 2 with lid 42.
Embodiment 2:
With embodiment 1, difference is:
Described lid 42 is provided with dissipation of heat medium 5, and this dissipation of heat medium 5 is air-cooled fin.
Embodiment 3:
With embodiment 2, difference is: described dissipation of heat medium 5 is water cooled heat radiating sheet.
Claims (8)
1. the balanced cooling system of lithium battery, comprise the equalizing circuit plate (1), the insulating heat-conductive parts (2) that contact with each other, described equalizing circuit plate (1) is connected in series with lithium battery module (7), it is characterized in that:
Described cooling system also comprises system, control circuit (3), and described equalizing circuit plate (1) is high pressure resistant heat-conduction circuit board, is provided with temperature observation circuit (11) and multiple equalizing circuit (12);
The output of described temperature observation circuit (11) is connected with the input one way signal of control circuit (3), described equalizing circuit (12) is corresponding with the battery node (71) on lithium battery module (7) to be connected in series, and equalizing circuit (12) is connected with system, control circuit (3) two-way signaling.
2. the balanced cooling system of a kind of lithium battery according to claim 1, it is characterized in that: described cooling system also comprises box-like radiating shell (4), described equalizing circuit plate (1), insulating heat-conductive parts (2), system, control circuit (3) are all positioned at the inside of box-like radiating shell (4), and the two sides of insulating heat-conductive parts (2) contacts with the inwall of equalizing circuit plate (1), box-like radiating shell (4) respectively.
3. the balanced cooling system of a kind of lithium battery according to claim 2, it is characterized in that: the lid (42) that described box-like radiating shell (4) comprises box body (41) and is mated, described equalizing circuit plate (1), insulating heat-conductive parts (2), system, control circuit (3) are all positioned at box body (41) inside, and insulating heat-conductive parts (2) contact with the inwall of lid (42).
4. the balanced cooling system of a kind of lithium battery according to claim 3, is characterized in that: described lid (42) is provided with dissipation of heat medium (5).
5. the balanced cooling system of a kind of lithium battery according to claim 4, is characterized in that: described dissipation of heat medium (5) is air-cooled or water cooled heat radiating sheet.
6. the balanced cooling system of a kind of lithium battery according to claim 2, is characterized in that: the manufactured materials of described box-like radiating shell (4) is aluminium alloy.
7. the balanced cooling system of a kind of lithium battery according to any one of claim 1 – 6, is characterized in that: described insulating heat-conductive parts (2) are flexible insulation conducting-heat elements.
8. the balanced cooling system of a kind of lithium battery according to any one of claim 1 – 6, is characterized in that: described equalizing circuit (12) is connected in series by external interface (6) is corresponding with battery node (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761672.4U CN204928300U (en) | 2015-09-29 | 2015-09-29 | Balanced cooling system of lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761672.4U CN204928300U (en) | 2015-09-29 | 2015-09-29 | Balanced cooling system of lithium cell |
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| Publication Number | Publication Date |
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| CN204928300U true CN204928300U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520761672.4U Active CN204928300U (en) | 2015-09-29 | 2015-09-29 | Balanced cooling system of lithium cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207296A (en) * | 2015-09-29 | 2015-12-30 | 东风商用车有限公司 | Balanced cooling system of lithium battery |
| CN113013937A (en) * | 2021-01-20 | 2021-06-22 | 宁波中车新能源科技有限公司 | Equalizing module of capacitor module and heat dissipation method thereof |
-
2015
- 2015-09-29 CN CN201520761672.4U patent/CN204928300U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207296A (en) * | 2015-09-29 | 2015-12-30 | 东风商用车有限公司 | Balanced cooling system of lithium battery |
| CN113013937A (en) * | 2021-01-20 | 2021-06-22 | 宁波中车新能源科技有限公司 | Equalizing module of capacitor module and heat dissipation method thereof |
| WO2022156098A1 (en) * | 2021-01-20 | 2022-07-28 | 宁波中车新能源科技有限公司 | Equalization module of capacitor module and heat dissipation method therefor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |