CN107768776B - Battery temperature control device - Google Patents
Battery temperature control device Download PDFInfo
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- CN107768776B CN107768776B CN201710897242.9A CN201710897242A CN107768776B CN 107768776 B CN107768776 B CN 107768776B CN 201710897242 A CN201710897242 A CN 201710897242A CN 107768776 B CN107768776 B CN 107768776B
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- inner cavity
- temperature
- battery
- liquid metal
- temperature control
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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
- H01M10/615—Heating or keeping warm
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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
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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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
- H01M10/6571—Resistive heaters
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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)
- Secondary Cells (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Primary Cells (AREA)
Abstract
The invention provides a battery temperature control device, which comprises an inner cavity, a shell, a temperature control unit and a control unit, wherein the inner cavity is provided with a first cavity; the inner cavity is used for placing a battery; the shell is sleeved outside the inner cavity, a closed interlayer is arranged between the shell and the inner cavity, liquid metal is filled in the interlayer, the temperature control unit comprises a heating assembly and a temperature sensor, the heating assembly is arranged in the interlayer and used for heating the liquid metal, and the temperature sensor is used for measuring the temperature of the liquid metal; the heating assembly and the temperature sensor are electrically connected with the control unit. According to the invention, the interlayer between the inner cavity and the shell is filled with the liquid metal, the battery is placed in the inner cavity, and the liquid metal is utilized to transfer the temperature to the inner cavity, so that on one hand, the liquid metal is prevented from being directly contacted with the battery; on the other hand, the temperature drift can be quickly and accurately reduced; meanwhile, the power of the heating assembly is adjusted through the temperature sensor, the temperature of the inner cavity is maintained to be the optimal charging efficiency temperature of the battery for a long time, and therefore the charging efficiency of the battery is improved.
Description
Technical Field
The invention relates to the technical field of battery energy storage, in particular to a battery temperature control device.
Background
Batteries, as a means of directly converting chemical energy into electrical energy, are of great importance in the national economy and defense industry. In recent years, the internet technology is highly singing, the electronic information technology is rapidly developed, the battery industry in China is unprecedentedly and finally developed, and China becomes the largest producing country and the largest consuming country of the battery industry. Meanwhile, the expansion development of related industries is derived. Taking a lithium ion battery as an example, the lithium ion battery is a novel chemical power source, has the outstanding advantages of high energy density, small self-discharge rate, good cyclicity, no memory, no pollution, high charge retention performance and the like, is considered to be an ideal choice of a high-capacity and high-power battery, and is widely applied to various fields of electronic products, vehicles, national defense and military, aerospace and the like.
Along with the acceleration of the popularization strength process of the battery, the rapid charging and discharging problem of the battery is more and more concerned by people. However, the actual charging effect of the current battery is not ideal, the efficiency of the battery cannot reach the maximum, and the charging time is long.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a battery temperature control device to solve the problems of low charging efficiency and long charging time in the prior art.
(II) technical scheme
In order to solve the technical problem, the invention provides a battery temperature control device, which comprises an inner cavity, a shell, a temperature control unit and a control unit, wherein the inner cavity is provided with a first cavity and a second cavity; wherein the inner cavity is used for placing the battery; the outer shell is sleeved outside the inner cavity, a closed interlayer is arranged between the outer shell and the inner cavity, liquid metal is filled in the interlayer, the temperature control unit comprises a heating assembly and a temperature sensor, the heating assembly is arranged in the interlayer and used for heating the liquid metal, and the temperature sensor is used for measuring the temperature of the liquid metal; the heating assembly and the temperature sensor are electrically connected with the control unit.
The shell is composed of a heat insulation layer and a protective layer, and the heat insulation layer is arranged on the inner side of the protective layer.
Wherein the heat-insulating layer is made of organic heat-insulating material, inorganic heat-insulating material or metal heat-insulating material
Wherein the protective layer is made of metal, high-strength resin, or plastic.
Wherein the inner cavity is made of a metal heat transfer material.
Wherein, the heating component is a heating wire, a quartz glass heating element or a ceramic heating element.
Wherein the interlayer is also filled with graphite particles and/or metal powder.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages:
the invention provides a battery temperature control device.A liquid metal is filled in an interlayer between an inner cavity and a shell, a battery is placed in the inner cavity, and the temperature is transferred to the inner cavity through the liquid metal, so that on one hand, the direct contact between the liquid metal and the battery is avoided; on the other hand, the liquid metal has the characteristics of low melting point, excellent heat conductivity and heat conductivity, so that the temperature drift can be reduced more quickly and accurately; meanwhile, the power of the heating assembly is adjusted through the temperature sensor, the temperature in the inner cavity is maintained to be the optimal charging efficiency temperature of the battery for a long time, and therefore the charging efficiency of the battery is improved.
Drawings
FIG. 1 is a schematic structural diagram of a battery temperature control device according to the present invention;
description of the reference numerals
1-inner cavity; 2-a battery; 3-a protective layer; 4-interlayer; 5-liquid metal; 6-a heating assembly; 7-a temperature sensor; 8-insulating layer.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the battery temperature control device provided in this embodiment includes an inner cavity 1, a housing, a temperature control unit, and a control unit.
The inner cavity 1 is used for placing a battery 2. The outer shell is sleeved on the outer side of the inner cavity 1, a closed interlayer 4 is arranged between the outer shell and the inner cavity 1, and liquid metal 5 is filled in the interlayer 4. The temperature control unit comprises a heating assembly 6 and a temperature sensor 7, the heating assembly 6 is arranged in the interlayer 4 and used for heating the liquid metal 5, the temperature sensor 7 is used for measuring the temperature of the liquid metal 5, and the heating assembly 6 and the temperature sensor 7 are both electrically connected with the control unit.
The temperature sensor 7 feeds back the temperature information of the liquid metal 5 to the control unit, and the control unit controls the operation of the heating assembly 6 according to the feedback information to provide a constant temperature environment corresponding to the optimal charging efficiency for the battery 2 in the inner cavity 1.
The inner cavity 1 may be a cylindrical or cubic structure. The inner cavity 1 is made of a material with good heat transfer performance or the surface of the material is covered with a medium with higher heat transfer coefficient, so that the heat transfer efficiency is improved. In this embodiment, the inner chamber 1 has a cubic structure made of a metal heat transfer material.
Wherein, the shell consists of a heat-insulating layer 8 and a protective layer 3, and the heat-insulating layer 8 is arranged at the inner side of the protective layer 3; the heat-insulating layer 8 is made of organic heat-insulating materials, inorganic heat-insulating materials or metal heat-insulating materials. The protective layer 3 is made of a material having high hardness and strength, such as: metal, high strength resin, or plastic.
Wherein, the heating component 6 is a heating wire, a quartz glass heating element or a ceramic heating element. In this embodiment, the heating component 6 preferably uses a ceramic PTC heating element, which has the advantages of low thermal resistance and high heat exchange efficiency, and is an automatic constant temperature and power saving electric heater.
Wherein, the interlayer 4 is also filled with materials with good heat conductivity coefficient, such as graphite particles, metal powder and the like, so as to increase the heat conductivity of the liquid metal.
The liquid metal 5 is a low melting point metal or an alloy thereof, such as gallium, gallium-indium alloy, gallium-indium-tin alloy, bismuth-indium-tin alloy. Liquid metal with a melting point temperature close to the optimal operating temperature of the battery is selected according to the characteristics of different batteries.
The following is a further detailed description through a specific procedure. (for example, a battery having an optimum charging efficiency temperature of 40 ℃ and a liquid metal having a melting point of 40 ℃ and consisting of 41.5% by mass of bismuth, 11% by mass of tin, 22% by mass of lead and 8% by mass of cadmium.)
After the liquid metal 5 has been heated to a temperature slightly above the melting point (40-45 c) by means of the heating assembly 6, charging of the battery 2 placed in the interior 1 is started. The temperature of the interlayer can be transferred to the inner cavity 1 through the inner cavity side wall 3, so that the temperature of the charging environment outside the battery 2 in the inner cavity 1 is about the optimal charging efficiency temperature (40 ℃). In order to maintain the temperature environment, the liquid metal 5 in the interlayer 4 needs to be heated, and the power of the heating assembly 6 is adjusted according to the temperature sensor 7, so as to provide the temperature environment corresponding to the constant optimal charging efficiency for the battery 2 in the inner cavity 1. Specifically, when the temperature in the inner cavity 1 is lower than the optimum charging efficiency temperature (40 ℃) of the battery 2, the power of the heating assembly 6 is increased to raise the temperature of the liquid metal 5, thereby increasing the temperature in the inner cavity 1; when the temperature in the inner cavity 1 is higher than the optimum charging efficiency temperature (40 ℃) of the battery 2, the power of the heating assembly 6 is reduced.
Further, the liquid metal 5 is subjected to a deoxidation treatment before filling; the solution for the deoxidation treatment is NaOH or other alkaline solution.
Further, in order to prevent the liquid metal 5 filled in the interlayer 4 from being oxidized, the interlayer 4 should be vacuumized before the liquid metal 5 is placed.
In the battery temperature control device provided by the embodiment, the interlayer between the inner cavity and the shell is filled with the liquid metal, the battery is placed in the inner cavity, and the temperature is transferred to the inner cavity through the liquid metal, so that on one hand, the direct contact between the liquid metal and the battery is avoided; on the other hand, the liquid metal has the characteristics of low melting point, excellent heat conductivity and heat conductivity, so that the temperature drift can be reduced more quickly and accurately; meanwhile, the power of the heating assembly is adjusted through the temperature sensor, the temperature in the inner cavity is maintained to be the optimal charging efficiency temperature of the battery for a long time, and therefore the charging efficiency of the battery is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A battery temperature control device is characterized by comprising an inner cavity, a shell, a temperature control unit and a control unit; wherein the inner cavity is used for placing the battery; the outer shell is sleeved outside the inner cavity, a closed interlayer is arranged between the outer shell and the inner cavity, liquid metal is filled in the interlayer, the temperature control unit comprises a heating assembly and a temperature sensor, the heating assembly is arranged in the interlayer and used for heating the liquid metal, and the temperature sensor is used for measuring the temperature of the liquid metal; the heating assembly and the temperature sensor are electrically connected with the control unit;
the liquid metal is subjected to deoxidation treatment before being filled, and the interlayer is subjected to vacuum pumping treatment before being placed; the solution for the deoxidation treatment is NaOH.
2. The temperature control apparatus according to claim 1, wherein the housing is composed of an insulating layer and a protective layer, and the insulating layer is provided on an inner side of the protective layer.
3. The temperature control device according to claim 2, wherein the insulating layer is made of an organic insulating material or an inorganic insulating material.
4. The temperature control device of claim 2, wherein the protective layer is made of metal or plastic.
5. The temperature control device of claim 1, wherein the internal cavity is made of a metallic heat transfer material.
6. The temperature control device according to claim 1, wherein the heating member is a heating wire, a quartz glass heater, or a ceramic heater.
7. The temperature control device according to any one of claims 1 to 6, wherein the interlayer is further filled with graphite particles and/or metal powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897242.9A CN107768776B (en) | 2017-09-28 | 2017-09-28 | Battery temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897242.9A CN107768776B (en) | 2017-09-28 | 2017-09-28 | Battery temperature control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107768776A CN107768776A (en) | 2018-03-06 |
| CN107768776B true CN107768776B (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710897242.9A Active CN107768776B (en) | 2017-09-28 | 2017-09-28 | Battery temperature control device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018099327A1 (en) * | 2016-12-02 | 2018-06-07 | 广州极飞科技有限公司 | Unmanned aerial vehicle, battery module, and charging control method |
| CN109065776A (en) * | 2018-07-19 | 2018-12-21 | 江苏卓岸电源科技有限公司 | A kind of battery thermal management system |
| CN109628145B (en) * | 2019-01-27 | 2020-07-14 | 河南理工大学 | Coal constant temperature reaction experimental apparatus |
| CN113285146B (en) * | 2021-07-22 | 2021-10-08 | 华东交通大学 | Electric vehicle battery heat preservation device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699090U (en) * | 2010-05-24 | 2011-01-05 | 宁波伊司达锂电池有限公司 | Lithium ion battery |
| CN102655247A (en) * | 2011-03-01 | 2012-09-05 | 杭州普维光电技术有限公司 | Method and device for constant temperature operation of lithium battery |
| CN204488462U (en) * | 2015-03-30 | 2015-07-22 | 济宁盛辉电动车有限公司 | A kind of electronlmobil constant-temperature battery |
| CN106532184A (en) * | 2016-12-27 | 2017-03-22 | 泉州市宏恩新能源汽车科技有限公司 | External temperature control battery |
-
2017
- 2017-09-28 CN CN201710897242.9A patent/CN107768776B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699090U (en) * | 2010-05-24 | 2011-01-05 | 宁波伊司达锂电池有限公司 | Lithium ion battery |
| CN102655247A (en) * | 2011-03-01 | 2012-09-05 | 杭州普维光电技术有限公司 | Method and device for constant temperature operation of lithium battery |
| CN204488462U (en) * | 2015-03-30 | 2015-07-22 | 济宁盛辉电动车有限公司 | A kind of electronlmobil constant-temperature battery |
| CN106532184A (en) * | 2016-12-27 | 2017-03-22 | 泉州市宏恩新能源汽车科技有限公司 | External temperature control battery |
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| CN107768776A (en) | 2018-03-06 |
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