CN112968228A - Electric motor car lithium cell heat abstractor - Google Patents
Electric motor car lithium cell heat abstractor Download PDFInfo
- Publication number
- CN112968228A CN112968228A CN202110141122.2A CN202110141122A CN112968228A CN 112968228 A CN112968228 A CN 112968228A CN 202110141122 A CN202110141122 A CN 202110141122A CN 112968228 A CN112968228 A CN 112968228A
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- Prior art keywords
- heat
- lithium battery
- dissipation device
- heat pipe
- mounting plate
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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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
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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
- H01M10/656—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
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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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a lithium battery heat dissipation device of an electric vehicle, which comprises a mounting plate, a plurality of semiconductor refrigeration pieces arranged on one side of the mounting plate, a heat pipe with one end arranged on the heating surface of the semiconductor refrigeration pieces, a heat conduction block arranged on the side wall of the mounting plate and used for cooling the heat pipe, and a heat dissipation device for accelerating air flow. According to the invention, the semiconductor refrigerating sheet is used for refrigerating and cooling the lithium battery, so that the temperature of the lithium battery can be quickly reduced, and the lithium battery can work normally and safely; the heat of the heating surface of the semiconductor refrigerating sheet can be conducted to the heat dissipation device through heat conduction of the heat pipe, so that the normal work of the semiconductor refrigerating sheet is maintained; the temperature sensor is used for collecting data so as to control the corresponding fan in the heat dissipation device to work, so that the temperature of the lithium battery can be controlled and the energy consumption can be reduced; this device adopts the flat design, can lay on the lithium cell surface, and occupation space is little, is convenient for arrange.
Description
Technical Field
The invention relates to a lithium battery heat dissipation device for an electric vehicle, and belongs to the technical field of lithium battery heat dissipation equipment for the electric vehicle.
Background
The lithium ion battery is a new type of high-energy storage battery that was first introduced to the market by sony corporation of japan in 1990. Its advantages are high specific energy and high storage power. Lithium ion batteries are generally recognized as having the following advantages: the energy ratio is large, the power ratio is high, the self-discharge is small, no memory effect exists, the cycle characteristic is good, the rapid discharge can be realized, and the efficiency is high; wide working temperature range, no environmental pollution and the like. The lithium battery is widely applied to the electric vehicle, and compared with a traditional internal combustion engine powered vehicle, the electric vehicle has the advantages of good sound insulation silence, acceleration and small pollution. However, the lithium battery is also dangerous to some extent, and is easy to damage due to overheating and cause spontaneous combustion danger of the lithium battery, so that heat dissipation of the lithium battery is particularly important in the use process, and the existing lithium battery is also a battery pack consisting of a plurality of 18650 electric cores, and the heating states of different positions are different.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the heat dissipation device for the lithium battery of the electric vehicle, which is used for refrigerating and cooling the lithium battery through the semiconductor refrigerating sheet, so that the temperature of the lithium battery can be quickly reduced, and the lithium battery can normally and safely work; the heat of the heating surface of the semiconductor refrigerating sheet can be conducted to the heat dissipation device through heat conduction of the heat pipe, so that the normal work of the semiconductor refrigerating sheet is maintained; the temperature sensor is used for collecting data so as to control the corresponding fan in the heat dissipation device to work, so that the temperature of the lithium battery can be controlled and the energy consumption can be reduced; this device adopts the flat design, can lay on the lithium cell surface, and occupation space is little, is convenient for arrange.
In order to achieve the purpose, the heat dissipation device for the lithium battery of the electric vehicle comprises a mounting plate, a plurality of semiconductor refrigeration sheets arranged on one side of the mounting plate, a heat pipe with one end arranged on the heating surface of the semiconductor refrigeration sheets, and a heat conduction block arranged on the side wall of the mounting plate and used for cooling the heat pipe and a heat dissipation device for accelerating air flow, wherein a plurality of mounting grooves arranged in a rectangular array and pipeline grooves used for accommodating the heat pipe and communicated with the mounting grooves are formed in one surface of the mounting plate, the pipeline grooves are communicated and connected with the heat conduction block, a heat insulation layer is arranged on the bottom surface of the mounting groove, the heat pipe is arranged on the surface, away from the mounting plate, of the heat insulation layer, a first heat conduction layer closely attached to the heating surface of the semiconductor refrigeration sheets is arranged on the surface of the semiconductor refrigeration sheets, a second heat conduction layer, the other end of the heat pipe is gathered in the heat conducting block along the pipeline groove, one surface of the heat conducting block, which is far away from the mounting plate, is provided with heat radiating fins, and the heat radiating device comprises a plurality of fans which are used for accelerating the air flow on the surfaces of the heat radiating fins of the heat conducting block.
Preferably, the first heat conducting layer and the second heat conducting layer are graphite heat conducting layers.
Preferably, the first heat conducting layer is provided with a heat pipe tubular heat conducting layer in a wrapping mode.
Preferably, the mounting grooves are provided with arc chamfers at the direction change positions.
Preferably, a foaming agent wrapping the heat pipe is arranged in the mounting groove.
Preferably, a soaking plate in contact with the heat pipe is arranged in the heat conducting block.
Preferably, the fan of the heat sink is an individually controllable turbofan.
Compared with the prior art, the invention has the beneficial effects that:
1. the semiconductor refrigerating sheet is used for refrigerating and cooling the lithium battery, so that the temperature of the lithium battery can be quickly reduced, and the lithium battery can work normally and safely;
2. the heat of the heating surface of the semiconductor refrigerating sheet can be conducted to the heat dissipation device through heat conduction of the heat pipe, so that the normal work of the semiconductor refrigerating sheet is maintained;
3. the temperature sensor is used for collecting data so as to control the corresponding fan in the heat dissipation device to work, so that the temperature of the lithium battery can be controlled and the energy consumption can be reduced;
4. this device adopts the flat design, can lay on the lithium cell surface, and occupation space is little, is convenient for arrange.
Drawings
FIG. 1 is an exploded view of a portion of the structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural diagram of the mounting plate of the present invention.
In the figure: 1. the heat-radiating device comprises a mounting plate, 1-1 parts of a mounting groove, 1-2 parts of a pipeline groove, 2 parts of a heat-insulating layer, 3 parts of a heat pipe, 4 parts of a first heat-conducting layer, 5 parts of a semiconductor refrigerating sheet, 6 parts of a second heat-conducting layer, 7 parts of a temperature sensor, 8 parts of a heat-conducting block, 9 parts of a heat-radiating device.
Detailed Description
The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, in order to achieve the above object, an electric vehicle lithium battery heat dissipation device provided by an embodiment of the present invention includes a mounting plate 1, a plurality of semiconductor refrigeration sheets 5 disposed on one side of the mounting plate 1, a heat pipe 3 having one end disposed on a heating surface of the semiconductor refrigeration sheets 5, a heat conduction block 8 disposed on a side wall of the mounting plate 1 for cooling the heat pipe 3, and a heat dissipation device 9 for accelerating air flow, wherein one side of the mounting plate 1 is provided with a plurality of mounting grooves 1-1 arranged in a rectangular array, and pipe grooves 1-2 for accommodating the heat pipe 3 and communicating with the mounting grooves 1-1, the pipe grooves 1-2 are all connected to the heat conduction block 8 in a penetrating manner, a heat insulation layer 2 is disposed on a bottom surface of the mounting groove 1-1, and a heat pipe 3 is disposed on a surface of the heat insulation layer, the one side that is located heat pipe 3 and keeps away from insulating layer 2 is provided with the first heat-conducting layer 4 of hugging closely semiconductor refrigeration piece 5 face of generating heat, the refrigeration face of semiconductor refrigeration piece 5 is provided with the second heat-conducting layer 6 that the area is greater than semiconductor refrigeration piece 5, be provided with temperature sensor 7 on the second heat-conducting layer 6, the other end of heat pipe 3 collects in heat-conducting block 8 along pipe groove 1-2, the one side that mounting panel 1 was kept away from to heat-conducting block 8 is provided with heat radiation fins, heat abstractor 9 includes that a plurality of is used for accelerating the fan that heat radiation fins surface air of heat-conducting block 8 flows.
Preferably, the first and second heat conducting layers 4 and 6 are graphite heat conducting layers. The heat conduction effect is good, and the lithium battery cooling is facilitated, and the heat generated by the semiconductor refrigerating sheet 5 is conducted to the heat pipe 3.
Preferably, the first heat conducting layer 4 is provided with a tubular heat conducting layer for wrapping the heat pipes 3. Facilitating the conduction of the heat generated by the semiconductor chilling plates 5 to the heat pipe 3.
Preferably, the mounting grooves 1-1 are provided with arc chamfers at the positions where the directions are changed. Which is beneficial to reducing the efficiency loss in the conduction process of the heat pipe 3.
Preferably, a foaming agent wrapping the heat pipe 3 is arranged in the mounting groove 1-1. The heat pipe 3 can be fixed and the heat can be insulated.
Preferably, a vapor chamber in contact with the heat pipe 3 is provided in the heat conducting block 8. The heat in the heat pipe 3 can be quickly conducted to the whole heat conducting block 8, and heat dissipation is facilitated.
Preferably, the fan of the heat sink 9 is an individually controllable turbofan. Is beneficial to improving the heat dissipation effect and reducing the energy consumption.
The working process is as follows: fix mounting panel 1 on the surface of lithium cell, lithium cell is hugged closely to second heat-conducting layer 6, temperature sensor 7 and controller electric connection, when detecting the temperature higher, start the refrigeration cooling of semiconductor refrigeration piece 5, start the fan among the heat abstractor 9 that corresponds simultaneously, heat pipe 3 is with the heat conduction of the 5 faces of generating heat of semiconductor refrigeration piece to heat conduction piece 8 in, the fan is with higher speed the heat radiation fin surface air flow of heat conduction piece 8 to accomplish the heat dissipation cooling.
In conclusion, the semiconductor refrigerating sheet 5 is used for refrigerating and cooling the lithium battery, so that the temperature of the lithium battery can be quickly reduced, and the lithium battery can work normally and safely; the heat of the heating surface of the semiconductor refrigerating sheet 5 can be conducted to the heat dissipation device 9 by the heat conduction of the heat pipe 3, so that the normal work of the semiconductor refrigerating sheet 5 is maintained; the temperature sensor 7 is used for collecting data so as to control the corresponding fan in the heat dissipation device 9 to work, so that the temperature of the lithium battery can be controlled and the energy consumption can be reduced; this device adopts the flat design, can lay on the lithium cell surface, and occupation space is little, is convenient for arrange.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (7)
1. The heat dissipation device for the lithium battery of the electric vehicle is characterized by comprising a mounting plate (1), a plurality of semiconductor refrigerating sheets (5) arranged on one side of the mounting plate (1), a heat pipe (3) with one end arranged on the heating surface of the semiconductor refrigerating sheets (5), and a heat conduction block (8) and a heat dissipation device (9) which are arranged on the side wall of the mounting plate (1) and used for cooling the heat pipe (3), wherein the heat conduction block and the heat dissipation device accelerate air flow, one side of the mounting plate (1) is provided with a plurality of mounting grooves (1-1) which are arranged in a rectangular array manner, and pipeline grooves (1-2) which are used for accommodating the heat pipe (3) and communicated with the mounting grooves (1-1), the pipeline grooves (1-2) are all communicated with the heat conduction block (8), a heat insulation layer (2) is arranged on the bottom surface of the mounting groove (1-1), and the, the one side that is located heat pipe (3) and keeps away from insulating layer (2) is provided with first heat-conducting layer (4) of hugging closely semiconductor refrigeration piece (5) heating surface, the refrigeration surface of semiconductor refrigeration piece (5) is provided with second heat-conducting layer (6) that the area is greater than semiconductor refrigeration piece (5), be provided with temperature sensor (7) on second heat-conducting layer (6), the other end of heat pipe (3) is followed pipeline groove (1-2) and is assembled in heat conduction piece (8), the one side that mounting panel (1) was kept away from in heat conduction piece (8) is provided with heat radiation fins, heat abstractor (9) include that a plurality of is used for accelerating the fan that the heat radiation fins surface air of heat conduction piece (8) flows.
2. The heat sink as claimed in claim 1, wherein the first and second heat conducting layers (4, 6) are graphite heat conducting layers.
3. The heat sink for lithium battery of electric vehicle as claimed in claim 1, wherein the first heat conducting layer (4) is provided with a tubular heat conducting layer for wrapping the heat pipe (3).
4. The heat sink for lithium battery of electric vehicle as claimed in claim 1, wherein the mounting grooves (1-1) are provided with arc chamfers at the locations where the direction changes.
5. The heat dissipation device for the lithium battery of the electric vehicle as recited in claim 1, wherein a foaming agent wrapping the heat pipe (3) is disposed in the mounting groove (1-1).
6. The heat sink for lithium battery of electric vehicle as claimed in claim 1, wherein a soaking plate contacting with the heat pipe (3) is disposed in the heat conducting block (8).
7. The heat sink for lithium batteries of electric vehicles according to claim 1, characterized in that the fan of the heat sink (9) is an individually controllable turbofan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141122.2A CN112968228A (en) | 2021-02-01 | 2021-02-01 | Electric motor car lithium cell heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141122.2A CN112968228A (en) | 2021-02-01 | 2021-02-01 | Electric motor car lithium cell heat abstractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112968228A true CN112968228A (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110141122.2A Pending CN112968228A (en) | 2021-02-01 | 2021-02-01 | Electric motor car lithium cell heat abstractor |
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| Country | Link |
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| CN (1) | CN112968228A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110179806A1 (en) * | 2010-01-28 | 2011-07-28 | Mitsubishi Electric Corporation | Cooling apparatus |
| CN103199316A (en) * | 2013-04-19 | 2013-07-10 | 安科智慧城市技术（中国）有限公司 | Battery pack and heat radiation structure thereof |
| CN103961210A (en) * | 2013-06-09 | 2014-08-06 | 深圳市天时威电子有限公司 | Head-mounted bag-type miniature semiconductor cooling ice belt |
| CN106960988A (en) * | 2017-05-17 | 2017-07-18 | 西南交通大学 | A kind of dynamic lithium battery heat management system |
| CN107732359A (en) * | 2017-09-05 | 2018-02-23 | 北京普莱德新能源电池科技有限公司 | Electric automobile power battery heat management device based on semiconductor refrigerating technology |
| CN109668346A (en) * | 2017-12-28 | 2019-04-23 | 杭州大和热磁电子有限公司 | A kind of novel semi-conductor refrigeration radiating module |
| CN111628239A (en) * | 2019-02-28 | 2020-09-04 | 中天储能科技有限公司 | Battery pack and method of assembling the same |
-
2021
- 2021-02-01 CN CN202110141122.2A patent/CN112968228A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110179806A1 (en) * | 2010-01-28 | 2011-07-28 | Mitsubishi Electric Corporation | Cooling apparatus |
| CN103199316A (en) * | 2013-04-19 | 2013-07-10 | 安科智慧城市技术（中国）有限公司 | Battery pack and heat radiation structure thereof |
| CN103961210A (en) * | 2013-06-09 | 2014-08-06 | 深圳市天时威电子有限公司 | Head-mounted bag-type miniature semiconductor cooling ice belt |
| CN106960988A (en) * | 2017-05-17 | 2017-07-18 | 西南交通大学 | A kind of dynamic lithium battery heat management system |
| CN107732359A (en) * | 2017-09-05 | 2018-02-23 | 北京普莱德新能源电池科技有限公司 | Electric automobile power battery heat management device based on semiconductor refrigerating technology |
| CN109668346A (en) * | 2017-12-28 | 2019-04-23 | 杭州大和热磁电子有限公司 | A kind of novel semi-conductor refrigeration radiating module |
| CN111628239A (en) * | 2019-02-28 | 2020-09-04 | 中天储能科技有限公司 | Battery pack and method of assembling the same |
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Application publication date: 20210615 |
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