CN202772242U - Battery pack temperature regulation and control system - Google Patents
Battery pack temperature regulation and control system Download PDFInfo
- Publication number
- CN202772242U CN202772242U CN2012204297297U CN201220429729U CN202772242U CN 202772242 U CN202772242 U CN 202772242U CN 2012204297297 U CN2012204297297 U CN 2012204297297U CN 201220429729 U CN201220429729 U CN 201220429729U CN 202772242 U CN202772242 U CN 202772242U
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- China
- Prior art keywords
- oil
- battery pack
- insulating box
- oil pump
- control system
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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
Abstract
The utility model discloses a battery pack temperature regulation and control system which comprises a battery pack, an electronic control unit (ECU), a constant-temperature box accommodating insulation oil, an oil filter, a radiator, a heater, an oil pump controller and an oil pump. The battery pack is completely immersed in the insulation oil in the constant-temperature box, and the constant-temperature box is provided with an oil outlet and an oil inlet. A plurality of temperature sensors are arranged on the surface of the constant-temperature box. The temperature sensors, the radiator, the heater and the oil pump controller are respectively electrically connected with the ECU. The oil pump is connected with the oil pump controller, the oil filter is respectively communicated with the oil outlet of the constant-temperature box and an oil inlet of the oil pump through pipes, an oil outlet of the oil pump is communicated with the radiator through a pipe, and the heater is respectively communicated with the oil inlet of the constant-temperature box and the radiator through pipes. The battery pack temperature regulation and control system has the advantages of being simple in structure, low in cost and high in safety and the like, the temperature of the battery pack can be always controlled within a normal working temperature range, working efficiency of the battery pack is improved, and the service life of the battery pack is prolonged.
Description
Technical field
The utility model belongs to the temperature adjusting field, particularly a kind of battery pack temperature regulator control system.
Background technology
The growing interest of people's environmental pollution and energy resource consumption problem has accelerated the development of new-energy automobile.Yet the development of new-energy automobile is faced with Varied problem, and the battery pack problem becomes is badly in need of one of major issue that solves, and the battery pack problem mainly comprises:
1. thermal safety problem;
2. heat efficiency problem;
3. useful life problem;
4. the temperature contrast problem of battery cell in the battery pack that causes of temperature;
5. the applicability problem of high and low temperature environment.
In order better to tackle the problems referred to above, need to be to the necessary temperature adjusting system of battery pack design.
Battery pack is carried out temperature adjusting mainly comprise two aspects: the one, during high temperature battery pack is cooled off; The 2nd, during low temperature battery pack is heated.At present, the type of cooling of temperature of powered cell control mainly contained gas cooled, fluid cooling and phase-change material cooling method.The cooling effect of various cooling meanss, design, design cost is also different.Gas cooled is more convenient, and expense is cheap, but its convection transfer rate is low, and cooling effect is bad, and is under cold low temperature environment, very poor to the heating effect of battery especially.The convection transfer rate of fluid is large, and radiating effect is better, but present liquid cooling structure all need to be for certain special cooling pipe and water back of battery pack design, complex structure, and cost is higher, and also has the shortcomings such as leakage, maintenance maintenance inconvenience.The phase-change material cooling means is had relatively high expectations to phase-change material, only effect is better on the maximum temperature of restricted power battery and minimum temperature, and cross high temperature, show larger limitation when crossing low temperature at some, and phase-change material has certain useful life, after using certain number of times, must change, therefore its cost is also relatively high.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art with not enough, a kind of battery pack temperature regulator control system is provided, this system configuration is simple, cost is low, safe and the temperature of battery pack can be controlled in the normal working temperature scope all the time, effectively raise operating efficiency and the useful life of battery pack.
The purpose of this utility model is achieved through the following technical solutions: a kind of battery pack temperature regulator control system, comprise battery pack, ECU(Electronic Control Unit, electronic control unit), insulating box, oil filter, radiator, heater, oil pump controller and the oil pump of insulation fluid be housed, described battery pack immerses in the insulation fluid in the insulating box fully; Described insulating box is provided with oil-out and oil-in; Be provided with a plurality of temperature sensors in the described insulating box, described temperature sensor, radiator, heater and oil pump controller are electrically connected with ECU respectively; Described oil pump is connected with oil pump controller, and described oil filter is communicated with the oil-out of insulating box and the oil-in of oil pump respectively by pipeline, passes through pipeline communication between the oil-out of described oil pump and the radiator; Described heater is communicated with oil-in and the radiator of insulating box respectively by pipeline.
Preferably, described insulating box top also is provided with pressure relief opening, a fuel reserve tank is installed between the pressure relief opening of described insulating box and the oil-in of oil pump, described oil storage tank is communicated with pressure relief opening and the oil pump oil-in of insulating box respectively by pipeline, wherein be provided with relief valve on the pipeline between the pressure relief opening of fuel reserve tank and insulating box, described relief valve and ECU electrical connection.
Preferably, described insulation fluid is transformer oil.
Preferably, also be provided with by-pass valve between described oil pump and the heater, described by-pass valve is communicated with oil-out and the heater of oil pump respectively by pipeline, described by-pass valve and ECU electrical connection.
Preferably, be provided with cooling fan by the described radiator.
Preferably, the number of described temperature sensor is more than 3.
Preferably, described oil pump is electric oil pump.
Preferably, six faces of described insulating box are sandwich, and the sandwich material of described sandwich is heat-barrier material.
Further, described heat-barrier material is mineral wool, asbestos, mineral wool, diatomite, rock wool, carbon aerogels, SiO2 aeroge, organic fiber or polyurethane foam.
Further, the two-layer panel of described insulating box side sandwich is steel plate, and the two-layer panel of insulating box upper and lower surface sandwich is aluminium sheet.
The operation principle of the utility model battery pack temperature regulator control system is as follows:
When battery pack was started working, temperature sensor gathered the temperature of battery pack, and Real-time Feedback is to ECU, and when temperature that ECU detects was between the upper and lower bound temperature of battery pack normal operation, regulator control system was not worked;
When the temperature that detects as ECU is higher than the ceiling temperature of battery pack normal operation, ECU sends work order to oil pump controller, oil pump controller drives operation of oil pump, simultaneously by the work of ECU control radiator, heater is not worked, insulation fluid in the insulating box flow into radiator by oil filter and cools off under the effect of oil pump, cooled insulation fluid is flowed through by pipeline, and the oil-in through insulating box flow back in the insulating box behind the heater, in this process owing to only having radiator work, heater is not worked, so insulation fluid has just obtained cooling.
When ECU detects temperature and is lower than the lower limit temperature of battery pack normal operation, ECU sends work order to oil pump controller, oil pump controller drives operation of oil pump, do not work by the work of ECU control heater, radiator simultaneously, the insulation fluid of insulating box is flowed through to flow in the heater behind the radiator by oil filter under the effect of oil pump and is heated, insulation fluid after the heating directly enters into insulating box by the oil-in of insulating box, in this process because a having heaters job, radiator is not worked, so insulation fluid has just obtained heating.
The utility model has following advantage and effect with respect to prior art:
(1) the utility model adopts the insulating oil realization of insulating box inside to the adjustment of battery pack, insulation fluid in the insulating box comes the temperature of regulating cell group by the mode of heat transmission, radiator and the heater outer by insulating box are controlled at the insulating oil temperature in certain scope, so that the temperature of battery pack can remain in the normal working temperature scope, guaranteed operating efficiency and the useful life of battery pack.The utility model does not need to design special cooling and heats two passages and can realize regulation and control to battery pack temperature, and structure is relatively simple, easily realizes.And insulation fluid of the present utility model recycles, and therefore reduced the cost of the utility model regulator control system.
(2) battery pack of the present utility model is fully immersed in the insulation fluid, has reduced the temperature difference that the battery pack each several part produces, and makes battery pack each several part variations in temperature comparatively even, thereby has improved the heat efficiency of battery.The fluid that insulate simultaneously can also play insulation and arc extinguishing effect, and catching fire when preventing battery leakage has improved Security of the system.
(3) be provided with an oil filter in the utility model system, insulation fluid carried out filtration, purification process, reduce the insulation property of insulation fluid behind the fluid Reusability that prevents from insulating because infiltrating more magazine.Improved the useful life of the utility model system.
(4) casing of the utility model insulating box adopts and has the sandwich of thermal insulation function, and environment plays preferably buffer action to external world, reduces external environment to the impact of battery pack.
When (5) the insulating oil hydraulic coupling was too high in the utility model insulating box, the relief valve on the thermostatic box was opened, and intrasystem insulation fluid flows into oil storage tank, so that the pressure in the insulating box suitably reduces; When the insulating box internal negative pressure, relief valve also will be opened, insulation fluid enters insulating box by oil storage tank and carries out ftercompction, by relief valve and oil storage tank the pressure in the insulating box has been carried out real-time adjusting, prevents excessive because of the insulating box internal pressure or too small battery pack is had a negative impact.
(6) two-layer panel of the utility model insulating box side sandwich adopts and has high-intensity metallic plate, such as steel plate; The two-layer panel of top and bottom sandwich adopts has better flexible metallic plate, such as aluminium sheet, when avoiding collision happens insulating box is produced the phenomenon that certain extruding causes insulating box to break.Make the safety in utilization of the utility model system obtain certain guarantee.
Description of drawings
Fig. 1 is the structured flowchart of the utility model system.
Fig. 2 is that the vertical profile of instinct utility model system insulating box is looked schematic diagram.
Fig. 3 is the sandwich schematic diagram of the utility model system insulating box.
Fig. 4 is the utility model system insulating box schematic diagram under external force.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As depicted in figs. 1 and 2, a kind of battery pack temperature regulator control system of the present embodiment, comprise battery pack 3, ECU4, be equipped with the insulation fluid insulating box 1, radiator 8, heater 9, oil pump controller 6, electric oil pump 7, oil storage tank 11 and oil filter 12, the used insulation fluid of the present embodiment is transformer oil.
By pipeline communication, the next door of radiator 8 is provided with cooling fan, further improves the radiating effect of radiator 8 between the oil-out of electric oil pump 7 and the radiator 8.
Heater 9 is communicated with oil-in 1-2 and the radiator 8 of insulating box 1 respectively by pipeline.
Oil storage tank 11 is installed between the pressure relief opening 1-3 and electric oil pump 7 of insulating box 1, be communicated with pressure relief opening 1-3 and electric oil pump 7 oil-ins of insulating box 1 respectively by pipeline, wherein be provided with relief valve 13 on the pipeline between the pressure relief opening 1-3 of oil storage tank 11 and insulating box 1.
Also be provided with by-pass valve 10 between electric oil pump 7 and the heater 9, by-pass valve 10 is communicated with oil-out and the heater 9 of electric oil pump 7 respectively by pipeline.
Temperature sensor 5, radiator 8, heater 9, oil pump controller 6, relief valve 13 and by-pass valve 10 are electrically connected with ECU4 respectively, by their operating state of ECU4 control.
As shown in Figure 3, six of the present embodiment insulating box 1 are all adopted sandwich, sandwich material in the middle of the interlayer 1-4 is heat-barrier material 1-5, the heat insulation material 1-5 that the present embodiment is selected selects carbon aerogels, also can have with mineral wool, asbestos, mineral wool, diatomite, rock wool, SiO2 aeroge, organic fiber, polyurethane foam etc. the material substitution of heat-blocking action.Sandwich with heat-barrier material effectively reduces external environment to the impact of battery pack.The two-layer panel of described insulating box side sandwich is steel plate, and the two-layer panel of insulating box upper and lower surface sandwich is aluminium sheet.
Be illustrated in figure 4 as the insulating box of this enforcement through the schematic diagram after pushing or colliding, because the panel of the side sandwich of insulating box 1 adopts the thicker steel plate of hardness, the panel of top and bottom sandwich adopts preferably thin aluminum sheet of elasticity, the phenomenon that causes insulating box 1 to break to the insulating box 1 certain extruding of generation when effectively avoiding collision happens, reduce simultaneously insulating box 1 suffered pressure of battery pack when being squeezed collision, so that the present embodiment Security of the system has obtained certain guarantee.
When battery pack 3 was started working, temperature sensor 5 gathered the temperature of battery pack, and Real-time Feedback is to ECU4.When temperature that ECU4 detects was between the upper and lower bound temperature of battery pack 3 normal working temperatures, regulator control system was not worked.
When the temperature that detects as ECU4 is higher than the ceiling temperature of battery pack 3 normal operations, ECU4 sends work order to oil pump controller 6, oil pump controller 6 drives electric oil pump 7 work, 8 work of simultaneously ECU4 control radiator, heater 9 is not worked, insulation fluid 2 in the insulating box 1 flow into radiator 8 by oil filter and cools off under the effect of electric oil pump 7, cooled insulation fluid is flowed through by pipeline, and the oil-in 1-2 through insulating box 1 flow back in the insulating box 1 behind the heater 9, reduce the temperature of battery pack 3 through overcooled insulation fluid by the mode of heat transmission, its temperature is maintained in the normal working temperature scope.Owing to only having radiator 8 work, heater 9 is not worked in this process, so insulation fluid has just obtained cooling.
When ECU4 detects temperature and is lower than the lower limit temperature of battery pack normal operation, ECU4 sends work order to oil pump controller 6, oil pump controller 6 drives electric oil pump 7 work, simultaneously ECU4 control heater 9 work, radiator 8 is not worked, the insulation fluid of insulating box 1 is flowed through to flow in the heater 9 behind the radiator 8 by oil filter under the effect of electric oil pump 7 and is heated, fluid after the heating directly enters into insulating box 1 by the oil-in 1-2 of insulating box 1, the raise temperature of battery pack 3 of the mode of insulation fluid after the heating by the heat transmission maintains in the normal working temperature scope its temperature.Owing to a having heaters 9 work, radiator 8 is not worked in this process, so insulation fluid has just obtained heating.
In addition since the present embodiment between electric oil pump 7 and heater 9, be provided with a by-pass valve 10, the temperature that collects battery pack 3 at ECU4 is crossed when low, the present embodiment can also be controlled by-pass valve 10 by ECU4 and open, directly flow in the heater 9 by by-pass valve 10 so that insulation fluid is walked around radiator 8, can further improve the efficiency of heating surface of system.
The present embodiment can be controlled at the temperature of insulation fluid in the scope by insulating box outer radiator 8 and heater 9, thereby the temperature of battery pack is remained in the normal working temperature scope, has guaranteed operating efficiency and the useful life of battery pack.
Adopt oil storage tank 11 further to improve this Security of the system at the present embodiment, when too high the or reason such as bump causes system's internal pressure to be higher than the higher limit of system's authorized pressure when insulating box 1 interior insulating oil liquid temp, relief valve 13 on the thermostatic box 1 is opened, intrasystem insulation fluid flows into oil storage tank 11 by the pressure relief opening 1-3 on the insulating box 1, so that suitable the reducing of the pressure of insulating box 1; When insulating box 1 built-in electrical insulation fluid is circulating in the process when causing negative pressure because of reasons such as loss, leakages, relief valve 13 also will be opened, insulation fluid enters 1 pair of insulating box of insulating box 1 by oil storage tank 11 and carries out supplementary pressure, carried out real-time adjusting by the pressure in relief valve 13 and 11 pairs of insulating boxs of oil storage tank 1, prevented excessive because of insulating box 1 internal pressure or too small battery pack 3 is had a negative impact.
Above-described embodiment is the better execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (10)
1. battery pack temperature regulator control system, comprise battery pack, it is characterized in that, also comprise ECU, insulating box, oil filter, radiator, heater, oil pump controller and the oil pump of insulation fluid are housed, described battery pack immerses in the insulation fluid in the insulating box fully; Described insulating box is provided with oil-out and oil-in; Be provided with a plurality of temperature sensors in the described insulating box, described temperature sensor, radiator, heater and oil pump controller are electrically connected with ECU respectively; Described oil pump is connected with oil pump controller, and described oil filter is communicated with the oil-out of insulating box and the oil-in of oil pump respectively by pipeline, passes through pipeline communication between the oil-out of described oil pump and the radiator; Described heater is communicated with oil-in and the radiator of insulating box respectively by pipeline.
2. battery pack temperature regulator control system according to claim 1, it is characterized in that, described insulating box top also is provided with pressure relief opening, a fuel reserve tank is installed between the pressure relief opening of described insulating box and the oil-in of oil pump, described oil storage tank is communicated with pressure relief opening and the oil pump oil-in of insulating box respectively by pipeline, wherein be provided with relief valve on the pipeline between the pressure relief opening of fuel reserve tank and insulating box, described relief valve and ECU electrical connection.
3. battery pack temperature regulator control system according to claim 1 is characterized in that, described insulation fluid is transformer oil.
4. battery pack temperature regulator control system according to claim 1, it is characterized in that, also be provided with by-pass valve between described oil pump and the heater, described by-pass valve is communicated with oil-out and the heater of oil pump respectively by pipeline, described by-pass valve and ECU electrical connection.
5. battery pack temperature regulator control system according to claim 1 is characterized in that, described radiator next door is provided with cooling fan.
6. battery pack temperature regulator control system according to claim 1 is characterized in that, the number of described temperature sensor is more than 3.
7. battery pack temperature regulator control system according to claim 1 is characterized in that, described oil pump is electric oil pump.
8. battery pack temperature regulator control system according to claim 1 is characterized in that, six faces of described insulating box are sandwich, and the sandwich material of described sandwich is heat-barrier material.
9. battery pack temperature regulator control system according to claim 8 is characterized in that, described heat-barrier material is mineral wool, asbestos, mineral wool, diatomite, rock wool, carbon aerogels, SiO2 aeroge, organic fiber or polyurethane foam.
10. battery pack temperature regulator control system according to claim 8 is characterized in that, the two-layer panel of described insulating box side sandwich is steel plate, and the two-layer panel of insulating box upper and lower surface sandwich is aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204297297U CN202772242U (en) | 2012-08-27 | 2012-08-27 | Battery pack temperature regulation and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204297297U CN202772242U (en) | 2012-08-27 | 2012-08-27 | Battery pack temperature regulation and control system |
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| Publication Number | Publication Date |
|---|---|
| CN202772242U true CN202772242U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204297297U Expired - Fee Related CN202772242U (en) | 2012-08-27 | 2012-08-27 | Battery pack temperature regulation and control system |
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| CN (1) | CN202772242U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832424A (en) * | 2012-08-27 | 2012-12-19 | 华南理工大学 | Temperature control system for battery packs |
| CN103458664A (en) * | 2013-09-06 | 2013-12-18 | 重庆创思特科技有限公司 | Circulating liquid type self-sensing optimal temperature circuit board protecting device |
| CN103985921A (en) * | 2014-05-15 | 2014-08-13 | 华霆（合肥）动力技术有限公司 | Pressurizing and liquid-cooling thermal-instability inhibiting system for battery |
| CN110611129A (en) * | 2019-09-23 | 2019-12-24 | 赣州市惠丽生物科技有限公司 | Device for preventing new energy automobile battery thermal runaway explosion |
| CN110620282A (en) * | 2018-06-19 | 2019-12-27 | 罗伯特·博世有限公司 | Battery module with a plurality of battery cells |
| CN111755777A (en) * | 2020-06-24 | 2020-10-09 | 蜂巢能源科技有限公司 | Immersed cooling module and low-temperature heating control method and equipment thereof |
| CN112490578A (en) * | 2020-11-11 | 2021-03-12 | 华南理工大学 | Power battery module |
-
2012
- 2012-08-27 CN CN2012204297297U patent/CN202772242U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832424A (en) * | 2012-08-27 | 2012-12-19 | 华南理工大学 | Temperature control system for battery packs |
| CN102832424B (en) * | 2012-08-27 | 2015-04-22 | 华南理工大学 | Temperature control system for battery packs |
| CN103458664A (en) * | 2013-09-06 | 2013-12-18 | 重庆创思特科技有限公司 | Circulating liquid type self-sensing optimal temperature circuit board protecting device |
| CN103985921A (en) * | 2014-05-15 | 2014-08-13 | 华霆（合肥）动力技术有限公司 | Pressurizing and liquid-cooling thermal-instability inhibiting system for battery |
| CN110620282A (en) * | 2018-06-19 | 2019-12-27 | 罗伯特·博世有限公司 | Battery module with a plurality of battery cells |
| CN110611129A (en) * | 2019-09-23 | 2019-12-24 | 赣州市惠丽生物科技有限公司 | Device for preventing new energy automobile battery thermal runaway explosion |
| CN111755777A (en) * | 2020-06-24 | 2020-10-09 | 蜂巢能源科技有限公司 | Immersed cooling module and low-temperature heating control method and equipment thereof |
| CN112490578A (en) * | 2020-11-11 | 2021-03-12 | 华南理工大学 | Power battery module |
| CN112490578B (en) * | 2020-11-11 | 2021-11-23 | 华南理工大学 | Power battery module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |