CN203481339U - Constant temperature system for power battery of electric automobile - Google Patents
Constant temperature system for power battery of electric automobile Download PDFInfo
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- CN203481339U CN203481339U CN201320565514.2U CN201320565514U CN203481339U CN 203481339 U CN203481339 U CN 203481339U CN 201320565514 U CN201320565514 U CN 201320565514U CN 203481339 U CN203481339 U CN 203481339U
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- heat exchanger
- air
- vacuum pump
- temperature
- battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a constant temperature system for a power battery of an electric automobile. The constant temperature system is characterized by comprising a sealed container (10) for mounting the power battery (11), wherein an air outlet connected with a vacuum pump (13) is formed in the sealed container (10), an air inlet connected with a heat exchanger (6) is formed in the sealed container (10), a sensor (15) for detecting the temperature of the power battery is mounted at the surface of the power battery (11) or in the sealed container, and the vacuum pump (13), the heat exchanger and the temperature sensor are all electrically connected with a controller (16). According to the constant temperature system, an air-conditioning system arranged on the electric automobile is taken as a heat source and cold source to maintain the temperature of the battery constant, and meanwhile, a vacuum heat preservation technique is creatively applied to the constant temperature management of automotive batteries for the first time, so that a method and a structure are simple and easy to implement, the performance of the power battery can be improved, and the service life of the battery can be prolonged.
Description
Technical field
The utility model relates to the power battery technology of a kind of common electric automobile (motor compressor) or heat pump type electromobile, especially relate to a kind of for guaranteeing the temperature control system of this type of battery normal working temperature, specifically a kind of electric automobile power battery constant temperature system.
Background technology
The eyeball that electric automobile is being subject to governments at all levels and environmentalist as a kind of free of contamination vehicles is looked at, various countries, governments at all levels have all dropped into a large amount of manpower and materials and have researched and developed, but due to the useful life of battery and the restriction of course continuation mileage, the popularization of electrocar is at present still in starting.What affect electric automobile course continuation mileage is mainly battery performance, therefore to develop large capacity battery for electric automobile on the one hand, also to start with from giving full play to battery performance two aspects on the other hand, and battery performance is subject to such environmental effects fairly obvious, especially under cryogenic conditions, battery performance declines fairly obvious, although and under hot conditions, can improve serviceability, if surpass certain temperature, can cause the dilatancy of battery and cause potential safety hazard.Therefore, in current battery performance, do not have under the prerequisite of breakthrough in essence, if improve the serviceability of battery, make battery operated key and the effective measures that its effect is raising automobile power cell performance of giving full play under optimum temperature.
Summary of the invention
The purpose of this utility model is easily influenced by ambient temperature and affect the problem that performance is brought into play for existing electric vehicle power accumulator, designs a kind of constant temperature system that can make battery work under temperature constant state.
The technical solution of the utility model is:
A kind of electric automobile power battery thermostatic control system, it is characterized in that it comprises that one for installing the airtight container 10 of electrokinetic cell 11, airtight container 10 is provided with the gas outlet and the air inlet that is connected heat exchanger 6 that connects vacuum pump 13, in the surperficial or described airtight container of electrokinetic cell 11, the transducer 15 for detection of temperature of powered cell is installed, described vacuum pump 13, heat exchanger and temperature sensor is all electrically connected with controller 16.
The first electromagnetically operated valve 12 of controlling outlet passageway break-make is installed on the outlet passageway 19 that connects described gas outlet and vacuum pump, on the inlet channel 18 that connects described air inlet and heat exchanger 6, the second electromagnetically operated valve 8 is installed.
Described heat exchanger 6 is building blocks for air energy heat pump system, described air energy heat pump system also comprises motor compressor 1, cross valve 2, expansion valve 4,5, extraneous air heat exchanger 3 and gas-liquid separator 7, by connecing to the loop direction that changes cold-producing medium of cross valve 2; When needs heat, high-temperature gas cold-producing medium is discharged by motor compressor, through being arranged on the heat exchanger 6 of battery side, add hot-air, air after heating by air inlet, enter in airtight container and by vacuum pump by hot-air constantly in suction seal container, continuous circulation heating battery is to set temperature value; When needs are cooling, high temperature refrigerant is discharged by motor compressor, the extraneous air heat exchanger 3 of flowing through, coolingly by expansion valve throttling, become low temperature gas-liquid two-phase cold-producing medium to flow to heat exchanger 6 evaporation of battery side, cooling-air enters in airtight container and under the effect of vacuum pump continuous circulation cool batteries to set temperature value; When needs are incubated, close air inlet, open gas outlet, vacuum pump work vacuumizes to the cavity in airtight container the vacuum degree that reaches setting and quits work, and closes gas outlet, makes electrokinetic cell in vacuum heat-preserving state.
The beneficial effects of the utility model:
The utility model utilizes air-conditioning system that electric automobile configures as the thermal source and the low-temperature receiver that make battery constant temperature, creatively vacuum heat-preserving technology is applied to first in the constant temperature management of Vehicular battery simultaneously, not only method is simple in structure, be easy to realize, and can improve the performance of Vehicular dynamic battery, extend the useful life of battery.
The utility model is incubated energy loss is reduced by vacuum technique.
The utility model evenly carries out cooling or heating to each parts of battery by vacuum technique, and avoid that the unidirectional convection current of conventional fan produces cooling or heat is inhomogeneously difficult to reach the accurate control of battery temperature.
It is 2.0 ~ 3.0 that the utility model adopts the efficiency COP (adding heat/power consumption) of air energy heat pump heating, and than PTC electrical heating efficiency, 0.85 ~ 0.9(adds heat/power consumption) height, thus heat pump is more saved the mileages of continuation that electric power improves car load.
Accompanying drawing explanation
Fig. 1 is system principle schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment mono-.
As shown in Figure 1.
An electric automobile power battery constant temperature method, it comprises the following steps:
First, the electrokinetic cell of electric automobile is arranged in an airtight container with thermal insulation separation thermosphere;
Secondly, sealing container is connected respectively with the heat exchanger 6 of vacuum pump and mounted air conditioner system, heat exchanger 6, as a part for air energy heat pump system, provides heating or freeze required thermal source or low-temperature receiver by air energy heat pump system.
Utilize vacuum pump to vacuumize airtight container, it is operated under vacuum state, utilize vacuum heat-preserving principle to make electrokinetic cell constant temperature;
The 3rd, unlatching vacuum pump and heat exchanger under the control of temperature controller (can adopt conventional electrical technology to be realized), hot gas heat exchanger being produced by vacuum pump or cold air are introduced in airtight container, make temperature constant in airtight container within the scope of electrokinetic cell optimum working temperature and make airtight container in vacuum state.When the temperature in airtight container reaches set point, first close the air inlet that airtight container connects heat exchanger, the vacuum pump vacuum degree being evacuated in airtight container that works on reaches set point, thereby makes airtight container in vacuum state.
Details are as follows:
As shown in Figure 1, first the utility model arranges the closed cavity 10 of a connection in electrokinetic cell surrounding, closed cavity arranges exhaust outlet and air inlet, one end, closed cavity gas outlet is established outlet passageway 19 and is communicated with outside vacuum pump 13, and electromagnetically operated valve 12 is set on outlet passageway, when vacuum pump work vacuumizes cavity, open, when vacuum pump quits work, close; Closed cavity air inlet end is established inlet channel 18 and is communicated with external heat pumping system battery side heat exchanger 6 surrounding air gas channels, and electromagnetically operated valve 8 is set on inlet channel, when vacuum pump vacuumizes while carrying out vacuum heat-preserving and cuts out closed cavity; When electrokinetic cell 11 needs heating or opens when cooling, and extracts and flow through the cold air that hot-air that heat pump battery side heat exchanger 6 heats (while heating) flows through heat pump heat exchanger 6 cooling (during refrigeration) to heating of battery or extraction and carry out cooling to battery by vacuum pump.This vacuum system can realize to electrokinetic cell is vacuumized insulation, extracts hot air circulate heating, extracts cold air circulating cooling.
Secondly, the utility model arranges insulating 9 in the peripheral surrounding of closed cavity.
The 3rd, the heating of electrokinetic cell of the present utility model or coolingly provide thermal source or low-temperature receiver by air energy heat pump system, this air energy heat pump is comprised of motor compressor 1, cross valve 2, battery side heat exchanger 6, expansion valve 4,5, extraneous air heat exchanger 3, gas-liquid separator 7, by connecing to the loop direction that changes cold-producing medium of cross valve.When needs heat, high-temperature gas cold-producing medium is discharged by compressor, through battery, surveys heat exchanger heats air and passes through vacuum pump circulating-heating battery; When needs are cooling, high temperature refrigerant is discharged by compressor, and the extraneous air heat exchanger of flowing through coolingly becomes low temperature gas-liquid two-phase cold-producing medium to flow to battery side heat exchanger evaporation by expansion valve throttling, cooling-air by vacuum pump circulating cooling battery; When needs are incubated, shut electromagnetic valve 8, opens electromagnetically operated valve 12, and vacuum pump work vacuumizes and reaches certain vacuum degree and quit work cavity, and shut electromagnetic valve 12, makes electrokinetic cell in vacuum heat-preserving state.
Finally, the utility model can be controlled the operating state of heat pump and vacuum system by input battery temperature signal, the vacuum sensor input vacuum degree signal of temperature sensor 14, reaches the temperature of electrokinetic cell is controlled.
Embodiment bis-.
As shown in Figure 1.
A kind of electric automobile power battery thermostatic control system, it comprises that one for installing the airtight container 10 of electrokinetic cell 11, electrokinetic cell 11 is installed with in airtight container 10 by fixed mount 17, the surface of airtight container 10 is preferably provided with insulating 9 to extend the insulation cycle, reduce as far as possible the startup of compressor, airtight container 10 is provided with the gas outlet and the air inlet that is connected heat exchanger 6 that connects vacuum pump 13, the first electromagnetically operated valve 12 of controlling outlet passageway break-make is installed on the outlet passageway 19 that connects described gas outlet and vacuum pump, on the inlet channel 18 that connects described air inlet and heat exchanger 6, the second electromagnetically operated valve 8 is installed.In the surface of electrokinetic cell 11 or described airtight container, be provided with for detection of the transducer 15 of temperature of powered cell and for detection of the transducer 14 of vacuum degree, described vacuum pump 13, the motor compressor 1 of controlling heat exchanger work and temperature sensor 15, vacuum sensor 14, electromagnetically operated valve 8,12 etc. all can adopt routine techniques to be realized with controller 16() be electrically connected.Described heat exchanger 6 is building blocks for air energy heat pump system, described air energy heat pump system also comprises motor compressor 1, cross valve 2, expansion valve 4,5, extraneous air heat exchanger 3 and gas-liquid separator 7, by connecing to the loop direction that changes cold-producing medium of cross valve 2; When needs heat, high-temperature gas cold-producing medium is discharged by motor compressor, through being arranged on the heat exchanger 6 of battery side, add hot-air, air after heating by air inlet, enter in airtight container and by vacuum pump by hot-air constantly in suction seal container, (circulation) heating battery is to set temperature value continuously; When needs are cooling, high temperature refrigerant is discharged by motor compressor, the extraneous air heat exchanger 3 of flowing through, coolingly by expansion valve throttling, become low temperature gas-liquid two-phase cold-producing medium to flow to heat exchanger 6 evaporation of battery side, cooling-air enters in airtight container and under the effect of vacuum pump continuously (circulation) cool batteries to set temperature value; When needs are incubated, close air inlet, open gas outlet, vacuum pump work vacuumizes to the cavity in airtight container the vacuum degree that reaches setting and quits work, and closes gas outlet, makes electrokinetic cell in vacuum heat-preserving state.
The utility model does not relate to partly all prior aries that maybe can adopt same as the prior art to be realized.
Claims (3)
1. an electric automobile power battery constant temperature system, it is characterized in that it comprises that one for installing the airtight container (10) of electrokinetic cell (11), airtight container (10) is provided with the gas outlet and the air inlet that is connected heat exchanger (6) that connects vacuum pump (13), in the surperficial or described airtight container of electrokinetic cell (11), the transducer (15) for detection of temperature of powered cell is installed, described vacuum pump (13), heat exchanger and temperature sensor are all electrically connected with controller (16).
2. system according to claim 1, it is characterized in that the first electromagnetically operated valve (12) of controlling outlet passageway break-make is installed on the outlet passageway (19) that connects described gas outlet and vacuum pump, on the inlet channel (18) that connects described air inlet and heat exchanger (6), the second electromagnetically operated valve (8) is installed.
3. system according to claim 1, it is characterized in that described heat exchanger (6) is a building block of air energy heat pump system, described air energy heat pump system also comprises motor compressor (1), cross valve (2), expansion valve (4,5), extraneous air heat exchanger (3) and gas-liquid separator (7), by connecing to the loop direction that changes cold-producing medium of cross valve (2); When needs heat, high-temperature gas cold-producing medium is discharged by motor compressor, through being arranged on the heat exchanger (6) of battery side, add hot-air, air after heating by air inlet, enter in airtight container and by vacuum pump by hot-air constantly in suction seal container, laser heating battery is to set temperature value; When needs are cooling, high temperature refrigerant is discharged by motor compressor, the extraneous air heat exchanger (3) of flowing through, coolingly by expansion valve throttling, become low temperature gas-liquid two-phase cold-producing medium to flow to heat exchanger (6) evaporation of battery side, cooling-air enters in airtight container and under the effect of vacuum pump continuously cool batteries to set temperature value; When needs are incubated, close air inlet, open gas outlet, vacuum pump work vacuumizes to the cavity in airtight container the vacuum degree that reaches setting and quits work, and closes gas outlet, makes electrokinetic cell in vacuum heat-preserving state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565514.2U CN203481339U (en) | 2013-09-12 | 2013-09-12 | Constant temperature system for power battery of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565514.2U CN203481339U (en) | 2013-09-12 | 2013-09-12 | Constant temperature system for power battery of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481339U true CN203481339U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320565514.2U Withdrawn - After Issue CN203481339U (en) | 2013-09-12 | 2013-09-12 | Constant temperature system for power battery of electric automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN203481339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474714A (en) * | 2013-09-12 | 2013-12-25 | 南京奥特佳冷机有限公司 | Constant-temperature method and system for power battery of electromobile |
| CN105605822A (en) * | 2016-03-08 | 2016-05-25 | 上海加冷松芝汽车空调股份有限公司 | Battery pack device with heat pump system for electric vehicle |
-
2013
- 2013-09-12 CN CN201320565514.2U patent/CN203481339U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474714A (en) * | 2013-09-12 | 2013-12-25 | 南京奥特佳冷机有限公司 | Constant-temperature method and system for power battery of electromobile |
| CN103474714B (en) * | 2013-09-12 | 2015-09-16 | 南京奥特佳新能源科技有限公司 | Electric automobile power battery constant temperature method and system thereof |
| CN105605822A (en) * | 2016-03-08 | 2016-05-25 | 上海加冷松芝汽车空调股份有限公司 | Battery pack device with heat pump system for electric vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 669 No. 239050 Anhui province Chuzhou Nanqiao Industrial Development Zone Wu Yi Park - Welcome Avenue Patentee after: Anhui Aotejia Technology Development Co., Ltd. Patentee after: Nanjing Aotecar New Energy Technology Co., Ltd. Address before: 669 No. 239050 Anhui province Chuzhou Nanqiao Industrial Development Zone Wu Yi Park - Welcome Avenue Patentee before: Anhui Aotejia Technology Development Co., Ltd. Patentee before: Nanjing Aotecar Refrigerating Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150916 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150916 |
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| RGAV | Abandon patent right to avoid regrant |