CN203277591U - Battery pack temperature control device - Google Patents
Battery pack temperature control device Download PDFInfo
- Publication number
- CN203277591U CN203277591U CN 201320315412 CN201320315412U CN203277591U CN 203277591 U CN203277591 U CN 203277591U CN 201320315412 CN201320315412 CN 201320315412 CN 201320315412 U CN201320315412 U CN 201320315412U CN 203277591 U CN203277591 U CN 203277591U
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- air
- battery pack
- power brick
- housing
- control device
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Abstract
The utility model provides a battery pack temperature control device. The battery pack temperature control device comprises a shell with a closed space, a battery bag and more than one air circulation units, wherein an openable/closeable air door is arranged on the shell; the battery bag is arranged in the shell; a battery pack consisting of a plurality of batteries is arranged in the battery bag; the battery bag is provided with an air inlet and an air outlet; the more than one air circulation units are arranged between the shell and the battery bag and used for promoting circulation of air in the shell; when the air door is closed, the air in the shell circularly flows along an internal air circulation channel consisting of an air circulating channel between the shell and the battery bag, the air inlet of the battery bag, a circulating channel among the plurality of batteries in the battery bag and the air outlet of the battery bag; when the air door is opened, an air inlet part and an air outlet part for air to come in and go out are formed between the air door and the closed shell, and the air circulating channel between the shell and the battery bag is disconnected. According to the above structure, control of heat insulation, heat dissipation and heat balance of the battery pack can be realized.
Description
Technical field
The utility model relates to the battery pack technical field, specifically, relates to a kind of battery pack temperature control device of controlling the working temperature of battery pack.
Background technology
In recent years, people more and more pay close attention to alternative energy source and the power of exploitation internal-combustion engines vehicle, and this has promoted the development of electric vehicle engineering.Electrokinetic cell is the key of Development of Electric Vehicles, and can the performance of electrokinetic cell will directly affect electric automobile normally, operation reliably.Power lithium-ion battery has that energy density is high, self-discharge rate is low, have extended cycle life and the premium properties such as environmental friendliness, therefore it is used widely in the electric automobile field.
Usually, the used for electric vehicle energy-storage system adopts several monomer dynamic lithium battery serial or parallel connections, and to obtain the required voltage of vehicle operating, this requires the monomer dynamic lithium battery to have higher consistency.And in use, due to dynamic lithium battery self-heating and the uneven impact of heat radiation, in battery pack, the distribution in temperature field is in inhomogeneous state, temperature contrast will cause the inconsistency of dynamic lithium battery progressively to enlarge, if do not controlled, not only can affect performance and the life-span of lithium battery, even jeopardize the security of operation of battery pack and vehicle.
In addition, because dynamic lithium battery is more responsive to temperature, excess Temperature or the too low unstable properties that all can make dynamic lithium battery, thus affect its security performance.In the prior art, usually adopt metal material or polymeric material housing, dynamic lithium battery after serial or parallel connection is directly put in housing, be not incubated or provision for thermal insulation between battery pack and housing, when battery pack is in low temperature environment, the dissipation of heat of battery pack is very fast, cause the discharge capacity of battery pack to reduce, the equal drops of discharging, shorten discharge time, even can shorten the useful life of battery pack, reduce the serviceability of dynamic lithium battery.And when ambient temperature surpasses the temperature range that battery pack can bear, the performance of battery pack also will be extremely unstable.
The utility model content
The utility model is made in order to address the above problem, its purpose is to provide a kind of battery pack temperature control device, this device can reduce the temperature contrast between the single battery that consists of battery pack, the temperature of battery pack can be controlled in suitable scope, avoid the performance to battery pack too high or too low for temperature to exert an influence.
To achieve these goals, the utility model provides a kind of battery pack temperature control device, comprising: consist of the housing of enclosure space, be provided with air door to be opened/closed on described housing; Power brick is located at the inside of described housing, and section can arrange the battery pack that is made of a plurality of batteries within it, and described power brick possesses air inlet and exhaust outlet; An above air circulation unit is arranged between described housing and described power brick, promotes the circulation of the air in described housing; When described air door was closed, the air in described housing was along being circulated by the circulation passage between the air inlet of the air communication channel between described housing and described power brick, described power brick, a plurality of batteries in described power brick, the inner air circulation canal that the exhaust outlet of described power brick forms; When described door opening, form intake section and the exhaust portion that makes the air turnover between the housing of described air door and described sealing, and block the air communication channel between described housing and described power brick.
In addition, preferably, be provided with heat-insulation unit on the inwall of described housing.
In addition, preferably, described air circulation unit is provided in a side of near the induced draft fan of air inlet of described power brick.
In addition, preferably, described air circulation unit is provided in a side of near the exhaust blower of exhaust outlet of described power brick.
In addition, preferably, also be provided with the temperature sensor of the temperature that detects described battery pack.
In addition, preferably, also be provided with heater in sidewall or the inside of described power brick.
In addition, preferably, when described door opening, outside air enters in described housing from described intake section, after exhaust outlet by the circulation passage between the air inlet of described power brick, a plurality of batteries in described power brick, described power brick, discharge from described exhaust portion.
From top description and the practice as can be known, the battery pack temperature control device that the utility model provides can guarantee that battery pack and batteries monomer are in suitable operating temperature range.Being provided with heat-insulation unit in housing can avoid the enclosure interior dissipation of heat too fast; Heater can make inner battery pack when being in the external world for low temperature environment, still can guarantee the temperature that is fit to; Air circulation unit can be so that gas circulates in forming in housing, to reduce the temperature contrast between single battery, equally, air circulation unit can make gas form outer circulation between housing and external environment, heat unnecessary in housing is brought into the outside, thereby the temperature of battery pack is controlled in suitable scope, avoids the performance to battery pack too high or too low for temperature to exert an influence.
Description of drawings
Fig. 1 means the structural representation of state when the air door of the battery pack temperature control device that the utility model relates to is closed.
The structural representation of state when Fig. 2 means the door opening of described battery pack temperature control device.
Embodiment
The execution mode of battery pack temperature control device described in the utility model is described below with reference to the accompanying drawings.Those of ordinary skill in the art can recognize, in the situation that do not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection range of restriction claim.In addition, in this manual, identical Reference numeral represents same or analogous part.
Fig. 1 means the structural representation of state when the air door of the battery pack temperature control device that the utility model relates to is closed.As shown in Figure 1, this battery pack temperature control device comprises the housing 100 of sealing, battery pack 11 and the air circulation unit 410,420 of being located at power brick 200 in described housing, being arranged in described power brick and being made of a plurality of batteries.
Wherein, described housing 100 is the body structures that can consist of enclosure space, is provided with air door 110 to be opened/closed on described housing, and when air door 110 was closed, the inside of housing 100 consisted of enclosure space.In addition, heat-insulation unit 130 can also be provided with on the inwall of housing 100, the internal heat of housing 100 can be reduced to the speed of external world's transmission.Preferably, heat-insulation unit 130 is made by insulation material with high thermal insulation and fire resistance etc.For example, adopt polyurethane foam plastics at the inboard insulating lining of making of housing 100.
Described power brick 200 is located at the inside of described shell 100, is used for loading the battery pack 11 that is made of a plurality of batteries.Space between this power brick 200 and housing 100 consists of air communication channel, can make air at internal circulation.Space between a plurality of batteries in power brick 200 also forms the circulation passage of air, makes air to circulate between battery.In addition, be provided with air inlet 221 and exhaust outlet 222 on power brick 200, be used for be communicated with inside and power brick 200 inside of housing 100.
In addition, described air circulation unit 410,420 is arranged in air communication channel between described housing 100 and described power brick 200, is used for promoting that air circulates in housing 100.Be arranged near the air inlet 221 and/or exhaust outlet 222 of described power brick 200 on preferred this air circulation unit, so more be conducive to circulating of air.Being arranged near the air circulation unit of air inlet 221 of described power brick 200, can be for example induced draft fan; Being arranged near the air circulation unit of exhaust outlet 222 of described power brick 200, can be for example exhaust blower.Undoubtedly, the diverse location in air communication channel can arrange a plurality of these air circulation unit, is not limited near air inlet and/or exhaust outlet.
Thus, when the air door 110 on being located at housing 100 is closed, form the inner air circulation canal 10 that the exhaust outlet 222 by the circulation passage between the air inlet 221 of the air communication channel between described housing 100 and described power brick 200, described power brick 200, a plurality of batteries in described power brick 200, described power brick 200 forms in the inside of housing 100, housing 100 interior air circulate along this inner air circulation canal 10.
In addition, in sidewall or the inside of power brick 200, heater 210 can also be set.Heater 210 can be arranged on the madial wall or lateral wall of power brick 200, also can be arranged between power brick 200 and battery pack 11.When this battery pack temperature control device is in low temperature environment, heater 210 work, the heat of its generation can offer battery pack 11, the heat exhaustion of balancing battery group 11, to guarantee that battery pack 11 under lower ambient temperature, still can keep normal working temperature.Preferably, heater 210 is Electric radiant Heating Film.
In addition, also be provided with the temperature sensor 300 of the temperature of each battery that detects battery pack 11 in this battery pack temperature control device.This temperature sensor 300 can be controlled its action by temperature control unit 500, detects respectively the temperature of each battery, such as adopting thermistor or 1-wire digital temperature sensor etc.
Below, the temperature control action of the battery pack temperature control device that the utility model relates to is described.
At first, when battery pack was started working, temperature control equipment was opened air door 110, formed thus intake section 122 and exhaust portion 121 between air door 110 and housing 100, simultaneously, blocked the air communication channel that forms between housing 100 and power brick 200.At this moment, be located at air circulation unit 410,420 work in described inner air circulation canal 10, make extraneous air enter into housing 100 inside from described intake section 122, and be full of the inner space of the housing 100 that comprises power brick 200.
Then, temperature control equipment cuts out air door 110.
At this moment, inside at housing 100 forms the inner air circulation canal 10 that is formed by the circulation passage between a plurality of batteries in the air communication channel between described housing 100 and described power brick 200, air inlet 221, described power brick 200, exhaust outlet 222, because described air circulation unit 410,420 is still worked, make the air in housing 100 circulate along described inner air circulation canal 10.Thus, battery pack causes self temperature rising after 11 work a period of times, also can passing through so, the inner loop of air flows, the temperature that guarantees battery pack 11 still remains on below the threshold value of regulation within a certain period of time, simultaneously, the temperature difference between each battery in battery pack 11 also can be controlled.
When the local temperature that the bulk temperature of battery pack 11 or a certain battery detected when temperature sensor 300 surpasses predefined threshold value, circulating the temperature that can't guarantee battery pack by inner air as above is in below threshold value, therefore, this battery pack temperature control device is opened the air door 110 on housing 100.Can block the air communication channel between described housing 100 and described power brick 200 when opening due to described air door 110, therefore air is along the inner loop flow stoppage of described inner air circulation canal 10, be transformed to along extraneous air circulation passage 20 circulations as shown in Figure 2, at this, extraneous air circulation passage 20 is made of the circulation passage between intake section 122, air circulation unit 410,420, air inlet 221, each battery, exhaust outlet 222 and exhaust portion 121, and air circulation unit 410 wherein is in running order.Like this, outside lower temperature air can enter into enclosure interior and battery pack 200 inside, reduce the working temperature of each battery, thereby the working temperature that guarantees battery pack is in below threshold value.
During lower than set point of temperature, this battery pack temperature control device cuts out air door 100 again, makes the Air Flow in housing become the inner air circulation when the temperature of temperature sensor 300 detected battery pack.
Put down in writing in the above-described embodiments air circulation unit 410,420 in running order all the time, still, also can set as required the work of these air circulation unit or stop.For example can be set as when air door 110 is closed, only have when the temperature difference between the local temperature of certain battery of battery pack 11 or the highest battery of temperature and the minimum battery of temperature surpasses setting air circulation unit just to work, otherwise air circulation unit is not worked.Can save the power consumption of whole battery pack temperature control device like this.When air door 110 work, air circulation unit is worked all the time.
In addition, in the situation that this battery pack temperature control unit is worked at low temperatures, if the temperature that temperature sensor 300 detects whole battery pack 11 or single battery is during lower than predefined threshold value, heater 210 work, the heat of its generation can improve the temperature of battery pack 11 surrounding airs.
At this, battery pack can be the battery pack that is made of a plurality of lithium batteries, can be also to be made of other batteries.
From top description and the practice as can be known, battery pack temperature control device and implementation method thereof that the utility model provides can guarantee that battery pack and single battery are in suitable operating temperature range.Being provided with heat-insulation unit in housing can avoid the enclosure interior dissipation of heat too fast; Heater can so that the battery pack in device is when being in the external world for low temperature environment, still can normally use at the temperature that is fit to; Air circulation unit can be so that gas circulates in forming in housing, to reduce the temperature contrast between single battery, equally, air circulation unit can be so that gas forms outer circulation between housing and external environment, heat unnecessary in housing is taken in external environment condition, thereby the temperature of battery pack is controlled in suitable scope, avoids the performance to battery pack too high or too low for temperature to exert an influence.
As above in the mode of example, battery pack temperature control device described in the utility model and implementation method thereof have been described with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that for said method, can also make various improvement and combination on the basis that does not break away from the utility model content.Therefore, protection range of the present utility model should be determined by the content of appending claims.
Claims (7)
1. a battery pack temperature control device, is characterized in that, comprising:
Consist of the housing of enclosure space, be provided with air door to be opened/closed on described housing;
Power brick is located at the inside of described housing, and section can arrange the battery pack that is made of a plurality of batteries within it, and described power brick possesses air inlet and exhaust outlet;
An above air circulation unit is arranged between described housing and described power brick, promotes the circulation of the air in described housing;
When described air door was closed, the air in described housing was along being circulated by the circulation passage between the air inlet of the air communication channel between described housing and described power brick, described power brick, a plurality of batteries in described power brick, the inner air circulation canal that the exhaust outlet of described power brick forms;
When described door opening, form intake section and the exhaust portion that makes the air turnover between the housing of described air door and described sealing, and block the air communication channel between described housing and described power brick.
2. battery pack temperature control device as claimed in claim 1, is characterized in that,
Be provided with heat-insulation unit on the inwall of described housing.
3. battery pack temperature control device as claimed in claim 1, is characterized in that,
Described air circulation unit is provided in a side of near the induced draft fan of air inlet of described power brick.
4. battery pack temperature control device as claimed in claim 1, is characterized in that,
Described air circulation unit is provided in a side of near the exhaust blower of exhaust outlet of described power brick.
5. battery pack temperature control device as claimed in claim 1, is characterized in that,
Also be provided with the temperature sensor of the temperature that detects described battery pack.
6. battery pack temperature control device as claimed in claim 1, is characterized in that,
Sidewall or inside in described power brick also are provided with heater.
7. battery pack temperature control device as claimed in claim 1, is characterized in that,
When described door opening, outside air enters in described housing from described intake section, after the exhaust outlet by the circulation passage between the air inlet of described power brick, a plurality of batteries in described power brick, described power brick, discharges from described exhaust portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320315412 CN203277591U (en) | 2013-06-04 | 2013-06-04 | Battery pack temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320315412 CN203277591U (en) | 2013-06-04 | 2013-06-04 | Battery pack temperature control device |
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| Publication Number | Publication Date |
|---|---|
| CN203277591U true CN203277591U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320315412 Expired - Fee Related CN203277591U (en) | 2013-06-04 | 2013-06-04 | Battery pack temperature control device |
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| CN (1) | CN203277591U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326084A (en) * | 2013-06-04 | 2013-09-25 | 哈尔滨圣为技术有限公司 | Battery pack temperature control device and battery pack temperature control method |
| CN103606638A (en) * | 2013-12-06 | 2014-02-26 | 先进储能材料国家工程研究中心有限责任公司 | Battery pack |
| CN106876626A (en) * | 2017-04-12 | 2017-06-20 | 中昱博新能源科技南京有限公司 | A kind of battery case |
| CN116435657A (en) * | 2023-03-24 | 2023-07-14 | 吉林工程技术师范学院 | Low-temperature lithium ion power battery heating device for new energy vehicle |
-
2013
- 2013-06-04 CN CN 201320315412 patent/CN203277591U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326084A (en) * | 2013-06-04 | 2013-09-25 | 哈尔滨圣为技术有限公司 | Battery pack temperature control device and battery pack temperature control method |
| CN103326084B (en) * | 2013-06-04 | 2016-01-13 | 哈尔滨圣为技术有限公司 | Battery pack temperature control device and battery pack temperature control method |
| CN103606638A (en) * | 2013-12-06 | 2014-02-26 | 先进储能材料国家工程研究中心有限责任公司 | Battery pack |
| CN103606638B (en) * | 2013-12-06 | 2016-01-20 | 科力远混合动力技术有限公司 | A kind of power brick |
| CN106876626A (en) * | 2017-04-12 | 2017-06-20 | 中昱博新能源科技南京有限公司 | A kind of battery case |
| CN106876626B (en) * | 2017-04-12 | 2023-10-13 | 中昱博新能源科技南京有限公司 | Battery box |
| CN116435657A (en) * | 2023-03-24 | 2023-07-14 | 吉林工程技术师范学院 | Low-temperature lithium ion power battery heating device for new energy vehicle |
| CN116435657B (en) * | 2023-03-24 | 2023-08-22 | 吉林工程技术师范学院 | Low-temperature lithium ion power battery heating device for new energy vehicle |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20131106 Termination date: 20160604 |