CN110828934A - Independent intelligent heat dissipation device for lithium battery pack - Google Patents
Independent intelligent heat dissipation device for lithium battery pack Download PDFInfo
- Publication number
- CN110828934A CN110828934A CN201911031492.XA CN201911031492A CN110828934A CN 110828934 A CN110828934 A CN 110828934A CN 201911031492 A CN201911031492 A CN 201911031492A CN 110828934 A CN110828934 A CN 110828934A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- heat dissipation
- lithium battery
- control system
- power supply
- 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
Links
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 57
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 48
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000001816 cooling Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
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
- H01M10/63—Control systems
-
- 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5011—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature for several cells simultaneously or successively
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5038—Heating or cooling of cells or batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- 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)
- Secondary Cells (AREA)
Abstract
The invention relates to an autonomous intelligent heat dissipation device of a lithium battery pack, belonging to the technical field of power supply heat dissipation, wherein the lithium battery pack is a lithium battery pack with a water sealed cavity; the lithium battery pack, the temperature relay, the power supply module and the electric control system are sequentially connected in series to form a series loop; the electric control system is electrically connected with each cooling fan respectively. For the lithium battery pack in the closed cavity in water, under the conditions that external power supply is not available and only air cooling heat dissipation can be adopted, the technical problem that the heat dissipation design of the battery pack is unknown is solved, the battery pack can independently supply power to an air cooling system under corresponding use conditions, the power consumption and the heat dissipation temperature are controlled, the heat dissipation problem of the lithium battery pack is solved, and the effective utilization of the energy of the battery pack is ensured.
Description
Technical Field
The invention belongs to the technical field of power supply heat dissipation, and particularly relates to an autonomous intelligent heat dissipation device for a lithium battery pack.
Background
Because the lithium (primary lithium and lithium ion) battery pack has the advantages of high specific energy, high voltage, convenient use and the like, the lithium (primary lithium and lithium ion) battery pack is widely applied to various fields such as civil use, industry, military use and the like. However, the lithium battery pack can generate heat in different degrees due to chemical reaction and ohmic voltage drop in the using process, certain influence is caused on the service life and the safety of the lithium battery pack, and the heat dissipation design is the key in the design of the lithium battery pack.
At present, the heat dissipation modes of the lithium battery pack mainly include natural heat dissipation, liquid cooling heat dissipation, air cooling heat dissipation and the like. The natural heat dissipation structure is simple, does not need special design, but has poor heat dissipation effect, and is generally suitable for the lithium battery pack with small low-power use. The liquid cooling heat dissipation efficiency is highest, and the radiating rate is fast, but the structure is complicated, and heat radiation structure's weight accounts for than too high, can reduce the specific energy of lithium cell group and efficiency in groups, and the liquid cooling heat dissipation needs circulation system and radiator unit cooperation moreover, and is higher to cooling system's requirement, generally is applicable to the heat dissipation of electric automobile lithium cell group. The air-cooled heat dissipation is between the two, the structural weight gain is small, the requirement on the rear end of a heat dissipation system is not high, and the lithium battery pack is suitable for lithium battery packs which have strict requirements on weight and do not have the cooperation of heat dissipation assemblies such as an air conditioning system and the like. The traditional air cooling mode generally adopts an external power supply mode, has no temperature and power consumption control, and for the lithium battery pack for underwater equipment, the battery pack is in a sealed cavity and cannot be externally supplied with power, and the traditional air cooling mode can only adopt an air cooling heat dissipation mode under the general condition. How to effectively dissipate heat of the lithium battery pack is always a technical problem.
Disclosure of Invention
The invention aims to solve the technical problems in the known technology and provides an autonomous intelligent heat dissipation device for a lithium battery pack, and for the lithium battery pack in a closed cavity in water, under the conditions of no external power supply and only air cooling heat dissipation, the autonomous intelligent heat dissipation device solves the technical problem of unknown heat dissipation design of the battery pack, enables the battery pack to autonomously supply power to an air cooling system under corresponding use conditions, controls the power consumption and the heat dissipation temperature, effectively solves the heat dissipation problem of the lithium battery pack, and ensures the effective utilization of the energy of the battery pack.
The invention aims to provide an autonomous intelligent heat dissipation device of a lithium battery pack, wherein the lithium battery pack is a lithium battery pack with a water sealed cavity, and the autonomous intelligent heat dissipation device of the lithium battery pack comprises a plurality of heat dissipation fans and an electric control system for controlling the working states of the heat dissipation fans; the lithium battery pack, the temperature relay, the power supply module and the electric control system are sequentially connected in series to form a series loop; the electric control system is electrically connected with each cooling fan respectively.
Furthermore, the autonomous intelligent heat dissipation device of the lithium battery pack further comprises an air volume sensor, and the air volume sensor is electrically connected with the electric control system.
The invention has the advantages and positive effects that:
1. the invention provides an efficient solution for the air cooling heat dissipation mode of the lithium battery pack in a closed environment without external power supply;
2. the invention creates an autonomous intelligent air-cooling heat dissipation method, so that the battery pack can control the opening and the time sequence of the fan according to the temperature, the air quantity and the use working condition, and can monitor the state of the fan;
3. the invention is used as a brand-new heat dissipation mode for the autonomous power supply and control of the lithium battery pack, and the heat dissipation control is linked with the battery pack BMS system to realize the autonomous intelligent control of the heat dissipation of the battery pack.
Drawings
Fig. 1 is a circuit diagram of a preferred embodiment of the present invention.
In the figure, 1-lithium battery; 2-a fan; 3-a temperature relay; 4-DC/DC; 5-BMS.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1, an autonomous intelligent heat dissipation device for a lithium battery pack is a lithium battery pack with a sealed cavity in water, and comprises a plurality of heat dissipation fans and an electric control system for controlling the working states of the heat dissipation fans; the lithium battery pack, the temperature relay, the power supply module and the electric control system are sequentially connected in series to form a series loop; the electric control system is electrically connected with each cooling fan respectively.
Preferably, the autonomous intelligent heat dissipation device for the lithium battery pack further comprises an air volume sensor, and the air volume sensor is electrically connected with the electric control system.
The implementation process of the above preferred embodiment is as follows:
the power-matched fan is optimized according to the use working condition and the heating power of the battery pack, and the power consumption is reduced as much as possible on the premise of meeting the heat dissipation air quantity. And simultaneously, the heat dissipation air duct is reasonably designed according to the environment of the battery pack.
The power supply of the cooling fan is connected with the total output end of the battery pack, and a power supply module (DC/DC) is designed on the circuit to meet the voltage precision of reliable work of the fan. The circuit is also provided with a temperature control module, and the temperature control module can be a temperature relay or a BMU (battery pack management system core control module) for controlling the opening and closing of the DC/DC module according to the temperature collected by the battery pack. And setting a temperature control threshold value in a temperature relay or a BMU according to the mode of using the battery pack and the temperature boundary so as to control the on and off of the fan. The fan is turned on when the temperature is above an on threshold, but turned off when the temperature is below an off threshold. Each cooling fan adopts the parallel design, and the fan is linked with the battery pack management system, and can control the starting number of the fans or the starting delay of the fans in an echelon mode.
According to the technical scheme, the autonomous intelligent heat dissipation of the lithium battery pack in the sealed cavity can be realized, the temperature of the battery pack system can be accurately controlled, and the power consumption is saved to the maximum extent; meanwhile, the time sequence and the time length of the fan opening can be automatically controlled according to needs, the working state of each fan can be detected, and an air volume sensor can be added if needed to detect and control the air volume of the fan, so that the intellectualization of the air cooling heat dissipation system is realized in an all-round manner.
The preferred embodiment mainly comprises a cooling fan, a temperature control system and an electric control system.
The innovation points of the invention are as follows:
1. the invention discloses an autonomous intelligent air-cooling heat dissipation device for a lithium battery pack, and solves the air-cooling heat dissipation problem of the lithium battery pack under the condition of no external power supply or in a closed environment.
2. The intellectualization of the air cooling system is realized through the linkage of the temperature control system and the electric control system, and the independent control of power consumption and heat dissipation temperature is achieved.
The design content related to the invention is as follows:
1. the detailed heating power and the heat dissipation requirement of the lithium battery pack are mastered, and the heat dissipation air duct is designed according to the assembly and use conditions.
2. An electrical power module (DC/DC) and a control switch for the fan are integrated with the BMU of the battery management system.
3. The fans are integrated with the monitoring module system of the battery pack, and each fan is powered by the monitoring unit of the management system. And when each monitoring unit is connected in series, a special fan power supply contact and a channel are designed, and finally the special fan power supply contact and the channel are connected with a fan switch in the BMU. A Hall or resistance device is designed in each monitoring unit fan circuit, and the fan state can be detected.
4. Devices such as a temperature sensor and an air volume sensor are designed in the lithium battery pack and used for detecting the state of the battery pack and the state of a fan. The sensor is connected with the monitoring unit of the management system, and the state information is transmitted to the BMU through the monitoring unit to judge the strategy of fan control
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (2)
1. An autonomous intelligent heat dissipation device for a lithium battery pack is characterized by comprising a plurality of heat dissipation fans and an electric control system for controlling the working states of the heat dissipation fans; the lithium battery pack, the temperature relay, the power supply module and the electric control system are sequentially connected in series to form a series loop; the electric control system is electrically connected with each cooling fan respectively.
2. The lithium battery pack autonomous intelligent heat dissipation device of claim 1, further comprising an air volume sensor, wherein the air volume sensor is electrically connected with the electronic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031492.XA CN110828934A (en) | 2019-10-28 | 2019-10-28 | Independent intelligent heat dissipation device for lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031492.XA CN110828934A (en) | 2019-10-28 | 2019-10-28 | Independent intelligent heat dissipation device for lithium battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110828934A true CN110828934A (en) | 2020-02-21 |
Family
ID=69550828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911031492.XA Pending CN110828934A (en) | 2019-10-28 | 2019-10-28 | Independent intelligent heat dissipation device for lithium battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110828934A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05322295A (en) * | 1992-05-27 | 1993-12-07 | Daikin Ind Ltd | Condensation control device for air |
| US20110086279A1 (en) * | 2008-04-18 | 2011-04-14 | Deutsches Zentrum Fuer Luft-Und Raumfahrt E.V. | Fluid cooling apparatus for a fuel cell device and fuel cell system |
| CN107585067A (en) * | 2017-09-12 | 2018-01-16 | 吴忱 | Automotive ventilation pipeline |
| CN107863588A (en) * | 2017-12-08 | 2018-03-30 | 南昌航空大学 | A kind of heat management coupled system of dynamic lithium battery group |
-
2019
- 2019-10-28 CN CN201911031492.XA patent/CN110828934A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05322295A (en) * | 1992-05-27 | 1993-12-07 | Daikin Ind Ltd | Condensation control device for air |
| US20110086279A1 (en) * | 2008-04-18 | 2011-04-14 | Deutsches Zentrum Fuer Luft-Und Raumfahrt E.V. | Fluid cooling apparatus for a fuel cell device and fuel cell system |
| CN107585067A (en) * | 2017-09-12 | 2018-01-16 | 吴忱 | Automotive ventilation pipeline |
| CN107863588A (en) * | 2017-12-08 | 2018-03-30 | 南昌航空大学 | A kind of heat management coupled system of dynamic lithium battery group |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102522609B (en) | Lithium-ion battery heat insulation device and control method thereof | |
| CN110525237A (en) | The cogeneration system and its control method of electric automobile fuel battery | |
| CN101938015B (en) | Equalizing charge management system of lithium ion power battery pack | |
| CN101425694A (en) | Equalized charging apparatus used for series batteries | |
| CN107871908B (en) | Power supply with mixed metal-air fuel cell and lithium ion battery and control method | |
| CN110803069B (en) | Control method of battery double-circuit power supply resonant alternating current heating system | |
| CN203660018U (en) | Heat management device | |
| CN203721844U (en) | Low-temperature self-heating circuit for lithium ion battery module | |
| CN207967253U (en) | Battery pack low-temperature heating device, battery module and vehicle | |
| CN204857904U (en) | Ultra -low temperature lithium cell group for electric automobile | |
| CN108054409B (en) | Thermoelectric system and method for active temperature control of fuel cell | |
| CN103647118B (en) | Battery temperature control device | |
| CN205104586U (en) | Automobile storage battery temperature control system | |
| CN105070976B (en) | A kind of ultralow temperature lithium battery group used for electric vehicle | |
| CN208035982U (en) | It is a kind of to realize that power battery exchanges the device of fast charge by electric machine controller | |
| CN110828934A (en) | Independent intelligent heat dissipation device for lithium battery pack | |
| CN104659830A (en) | Novel intelligent charger | |
| CN103165960B (en) | Heating thermal insulation system for electrombile battery | |
| CN103042899A (en) | Remote-controlled interior refrigerating system | |
| CN203721848U (en) | Low-temperature self-heating circuit for power lithium ion battery module | |
| CN215154067U (en) | Novel integrated BMS battery management system | |
| CN206585026U (en) | Ultralow temperature lithium battery group | |
| CN113054289B (en) | Alternating current heating circuit, system and heating method in lithium battery pack | |
| CN110048188B (en) | Outdoor base station power supply thermal management system based on redundant power device | |
| CN210326046U (en) | Outdoor base station power supply thermal management system based on redundant power device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200221 |
|
| WD01 | Invention patent application deemed withdrawn after publication |