CN101789518B - Heat exchange structure of power battery box - Google Patents
Heat exchange structure of power battery box Download PDFInfo
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- CN101789518B CN101789518B CN2010101306247A CN201010130624A CN101789518B CN 101789518 B CN101789518 B CN 101789518B CN 2010101306247 A CN2010101306247 A CN 2010101306247A CN 201010130624 A CN201010130624 A CN 201010130624A CN 101789518 B CN101789518 B CN 101789518B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to a heat exchange structure of a power battery box, wherein a temperature monitoring element is arranged in a battery module of a battery pack; the battery pack is erected in the middle of a battery box; a top space, a bottom space and a side surface space are respectively positioned between the upper surface, the lower surface and the side surface of the battery pack and the top, the bottom and the side surface of the battery box; a heating element is arranged in the battery box; a first air door and a second air door are arranged on the battery box; an air driving element is arranged in the battery box towards the second air door and at an acute angle with the second air door; and a control unit is electrically connected with the first air door, the second air door, the air driving element, the heating element and the temperature monitoring element. The invention has ingenious design, simple structure, low cost, convenient operation and both cooling and heating, thereby solving the problem of heat management of the battery box of an all-electric hybrid power vehicle, meeting the strict requirements of a battery on working temperature, enhancing the property of the battery and being suitable for large-scaled popularization and application.
Description
Technical field
The present invention relates to the power battery device technical field; Be particularly related to the power battery box technical field of structures; Specifically be meant a kind of heat exchange structure of power battery box, be applicable to the heat management of the battery pack of pure electronic or motor vehicle driven by mixed power, be particularly useful for the heat management of the battery pack of horizontal arrangement.
Background technology
Adopt secondary cell to become one of the dependence of breaking away from oil, the important measures that reduce pollutant emission, realization sustainable development as the electric automobile and the hybrid vehicle of vehicular energy.At present, Ni-MH battery (Ni-MH) is mainly used in hybrid vehicle, and lithium ion (Li-ion) battery ferric phosphate lithium cell (LiFePO especially
4) and polymer Li-ion (Lithiumion polymer) battery be mainly used in pure electric automobile.
Be the vehicle performance under the operating modes such as the requirement of satisfying quick charge and continual mileage and climbing, anxious accelerations, these electrokinetic cells not only need high power output, and also requirement has big capacity.For this reason, common way is that a plurality of battery cell serial or parallel connections are constituted battery module together, constitutes battery pack to a plurality of battery module serial or parallel connections more together.Because current driving force battery specific power and specific energy all have much room for improvement; For continual mileage and the performance requirement that satisfies vehicle makes that the volume and weight of battery pack is all bigger; Layout on vehicle usually can't concentrate on a place; The electrokinetic cell system of general car load is made up of more than one battery case in actual engineering, and the shape of these battery cases is varied, does not form unified standard as yet.
The inner meeting of battery cell that exists owing to the internal resistance of cell in the process of battery charging and discharging produces a large amount of heat; If the untimely discharge of these heats; Will cause the temperature of battery cell to raise, the performance of battery and life-span are affected, need cool off battery case in this case.On the other hand, all can sharply reduce, return to desirable working temperature as early as possible, need heat battery case in order to make battery in the capacity and the charging and discharging capabilities of the extremely low severe cold environment medium power battery of temperature.Therefore, generally speaking battery case needs design of High Efficiency, reliable, compact heat-exchange system, and it is cooled off or heats according to the temperature of battery.
Design of conventional battery case and patent have generally only been considered the requirement of cooling, and heating is seldom paid attention to.The cooling scheme generally be with air as working media, the source of air comprises outside luggage case, passenger cabin or the car.Outside car, introducing air, to receive environmental impact bigger, and the cleannes of air, humidity etc. all might not meet the demands, and need filter and dehumidify it, increased the complexity of system.The problem of introducing air from luggage case is that its temperature is higher, and is not good to the cooling effect of battery during the broiling summer.Therefore, introducing air from personnel's passenger cabin is optimal selection, and the maximum temperature that personnel can bear is lower than the upper limit of the optimum working temperature of battery, and air is comparatively desirable through air filter as coolant in the cabin.Certainly, shortcoming is the load that has increased the weight of air-conditioning system, but this is than installing air-conditioning and filtration system economy and much compact separately additional for battery case.
The patent of current battery case heat management aspect is more, but most patent has many drawbacks, can't in engineering, reality utilize, and reason has several aspects.The one, adopt too many member, make battery case huge and heavy, can't on vehicle especially pony car and minicar, realize; The 2nd, do not consider demand of heating, and this electric automobile under severe cold environment is can operate as normal essential more; The 3rd, system complex does not meet the requirement of automobile engineering low cost, easy manufacturing, high reliability.
Therefore, need a kind of heat exchange structure of power battery box, it is simple in structure, cost is low, control conveniently, take into account cooling and heating, thereby solves the problem of pure electronic, motor vehicle driven by mixed power battery case heat management, satisfies the harsh requirement of battery to its working temperature.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming of the prior art; A kind of heat exchange structure of power battery box is provided, and this heat exchange structure design is ingenious, simple in structure, cost is low, control conveniently, take into account cooling and heating; Thereby solve the problem of pure electronic, motor vehicle driven by mixed power battery case heat management; Satisfy the harsh requirement of battery, promoted the performance of battery, be suitable for large-scale promotion application its working temperature.
To achieve these goals; Heat exchange structure of power battery box of the present invention; Comprise battery case and at least one battery pack; Be characterized in; Said heat exchange structure of power battery box also comprises first air door, second air door, at least one air driven element, at least one heating element, control unit and temperature monitoring element; Said temperature monitoring element is arranged in the battery module of said battery pack, and said battery pack is erected at the middle part of said battery case, and the upper surface of said battery pack, lower surface and side are respectively and have headroom, bottom space and side space between the top of said battery case, bottom and the side; Said heating element is installed in the said battery case; Said first air door and said second air door are arranged on the said battery case, and said air driven element is installed in the said battery case and acutangulates setting towards said second air door and with said second air door, and said control unit is electrically connected said first air door, said second air door, said air driven element, said heating element and said temperature monitoring element.
Preferably, said heating element is arranged on the downstream of said air driven element and does not hinder the unlatching of said second air door.
Preferably; The number of the battery module in the said battery pack is more than or equal to 2; Said battery module serial or parallel connection; Battery module number in the said battery pack more for a long time can one row or arrange when placing said battery case (more for a long time, following time can not adopted many arranged to the battery module in battery case with single layout at battery module), said battery case to contain the above battery module of 2 rows more; Said heat exchange structure of power battery box also comprises dividing plate, is provided with said dividing plate between the said battery module of adjacent two rows.
Preferably, said heat exchange structure of power battery box also comprises cushion block, and said bottom space and said headroom are respectively arranged with at least one said cushion block.
More preferably, the bottom that is in said cushion block and described battery case in the said bottom space is integrally formed, and the top that is in said cushion block and described battery case in the said headroom is integrally formed.
More preferably, said cushion block is the column cushion block, and the cross section of said column cushion block is circular or oval.
Preferably, said air driven element is a fan.
More preferably, said heat exchange structure of power battery box also comprises fan panel, and said fan panel is installed in the said battery case, and said fan is installed in the said fan panel.
Preferably, said heating element is the PTC element.
More preferably, said PTC element is a heating ceramic PTC plate.
Preferably, said temperature monitoring element is a temperature sensor.
Preferably, said battery case comprises battery box cover and Battery case, and said battery box cover covers on said Battery case, and said first air door and said second air door are arranged on the said battery box cover.
More preferably, said first air door and said second air door are arranged on the upper side at the relative two ends of said battery box cover.
More preferably, said first air door and said second air door are provided with said battery box cover sealing respectively.
Preferably, said second air door is arranged to towards said battery case when opening outward, and said heat exchange structure of power battery box also comprises the 3rd air door, and said the 3rd air door is arranged in the said battery case
Beneficial effect of the present invention is specific as follows:
1, battery pack of the present invention places the battery case middle part, all leaves the space all around, and first air door and second air door are set on Battery case; Air driven element and heating element are set in battery case, and the air driven unit acutangulates setting towards second air door and with it, thereby the battery temperature that control unit monitors according to the temperature monitoring element is controlled the switching of first air door and second air door; And through control air driving element and heating element; Realize heating or cooling, design ingenious, simple in structure, cost is low, control conveniently, take into account cooling and heat; Thereby solve the problem of pure electronic, motor vehicle driven by mixed power battery case heat management; Satisfy the harsh requirement of battery, promoted the performance of battery, be suitable for large-scale promotion application its working temperature.
2, heating element of the present invention can be arranged on the downstream of air driven element, helps making full use of the heat that it sends, and realizes heating rapidly, designs ingeniously, simple in structure, and heats is good.
3, the battery module of battery pack of the present invention row number also was provided with dividing plate between adjacent two row's battery modules, thereby battery case is isolated into the space of strip more than or equal to 2 o'clock; Be formed with the gas channel that is beneficial to air circulation; Design ingeniously, simple in structure, utilize heating and cooling.
4, the space up and down of battery pack of the present invention is provided with cushion block, through cushion block battery pack is erected at the middle part of battery case, thereby constructs gas channel; And the shape of cushion block can be arranged to be beneficial to the structure that air flow stream is crossed, and is arranged to circle or oval constant current contour shape such as cross section, has reduced the flow resistance in the gas channel; Thereby reduced the power consumption of air driven element; Design ingeniously, simple in structure, cost is low.
5, the present invention adds extra refrigeration, filtering, dehumidification system through utilizing in the passenger cabin air to save as the battery case coolant, simplifies the structure, and has reduced cost.
6, the top of cushion block of the present invention and battery case and bottom are one-piece, and have reduced the structure installation workload, improve installation quality, design ingenious, simple in structure, easy for installation.
7, first air door of the present invention and second air door further can be arranged on the upper side at two ends of the battery box cover of battery case; Make win air door and second air door as far as possible each other away from; Thereby prevent that the air outlet air from getting back to air inlet in a large number and reducing cooling effect, design ingenious, simple in structure; Cost is low, good cooling results.
8, the present invention can also be provided with the 3rd air door, with further optimization cooling effect, designs ingeniously, simple in structure, and cost is low, good cooling results.
Description of drawings
Fig. 1 a is the volume rendering sketch map of a specific embodiment of the present invention.
Fig. 1 b is that the master of the specific embodiment shown in Fig. 1 a looks sketch map.
Fig. 1 c is the enlarged diagram of regional A among Fig. 1 b.
Fig. 1 d is the enlarged diagram of the fan panel of the specific embodiment shown in Fig. 1 a.
Fig. 2 a is the operation principle sketch map of the specific embodiment shown in Fig. 1 a under refrigerating mode.
Fig. 2 b is that the master of the specific embodiment shown in Fig. 2 a looks sketch map.
Fig. 2 c is the enlarged diagram of area B among Fig. 2 b.
Fig. 3 a is the operation principle sketch map of the specific embodiment shown in Fig. 1 a under heating mode.
Fig. 3 b is that the master of the specific embodiment shown in Fig. 3 a looks sketch map.
Fig. 3 c is the enlarged diagram of zone C among Fig. 3 b.
Fig. 4 is that the cushion block shape and the air of the bottom space of the specific embodiment shown in Fig. 1 a streams sketch map.
Fig. 5 a is the volume rendering sketch map of another specific embodiment of the present invention.
Fig. 5 b is that the master of the specific embodiment shown in Fig. 5 a looks sketch map.
Fig. 5 c is the enlarged diagram of region D among Fig. 5 b.
Fig. 5 d is the enlarged diagram of the fan panel of the specific embodiment shown in Fig. 5 a.
Fig. 6 a is the operation principle sketch map of the specific embodiment shown in Fig. 5 a under refrigerating mode.
Fig. 6 b is that the master of the specific embodiment shown in Fig. 6 a looks sketch map.
Fig. 6 c is the enlarged diagram of area E among Fig. 6 b.
Fig. 7 a is the operation principle sketch map of the specific embodiment shown in Fig. 5 a under heating mode.
Fig. 7 b is that the master of the specific embodiment shown in Fig. 7 a looks sketch map.
Fig. 7 c is the enlarged diagram of regional F among Fig. 7 b.
Embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
See also shown in Fig. 1 a～1d; One specific embodiment of heat exchange structure of power battery box of the present invention comprises battery case 1, at least one battery pack 4, first air door 5, second air door 7, at least one air driven element 11, at least one heating element 13, control unit (not shown) and temperature monitoring element (not shown); Said battery pack 4 comprises some battery modules that are arranged side by side (not marking one by one); Shown in Fig. 1 a; Said battery pack 4 is made up of 2 row's battery modules; 5 battery modules that are arranged side by side are drawn together in every package; Said temperature monitoring element is arranged in each battery module of said battery pack 4, and said battery pack 4 is erected at the middle part of said battery case 1, and the upper surface of said battery pack 4 (not marking), lower surface (not marking) and side (not marking) have headroom, bottom space and side space respectively and between the top 9 of said battery case 1, bottom 8 and side (not the marking); Said heating element 13 is installed in the said battery case 1; Said first air door 5 is arranged on the said battery case 1 with said second air door 7, and said air driven element 11 is installed in the said battery case 1 and acutangulates setting towards said second air door 7 and with said second air door 7, and said control unit is electrically connected said first air door 5, said second air door 7, said air driven element 11, said heating element 13 and said temperature monitoring element.Because battery pack 4 its locus are in the centre of battery case 1, the space around it forms the exchanging air circulation road.Said air driven element 11 numbers can be confirmed according to adding parameters such as heat, cooling air quantity, can be one, also can be a plurality of.
Said second air door 7 can be arranged to also can be arranged in said battery case 1, open towards said battery case 1 outer opening.When said second air door 7 is arranged to open in the said battery case 1, shown in Fig. 3 a～3c, when first air door 5 and second air door 7 are closed, circulation in air driven element 11 drive air, heating element 13 is opened, and can be used for heating; Shown in Fig. 2 a～2c; When first air door 5 and second air door 7 are opened; The outlet that the portion of air stream that air driven element 11 drives is directly opened through second air door 7 is discharged outside the battery case 1; Another part air stream is stopped that by second air door 7 thereby its outlet of opening of leading is discharged outside battery case 1 it, and the outlet of all being opened by second air door 7 basically of air driven element 11 driven air is discharged like this, can be used for cooling off.If second air door 7 is arranged to towards said battery case 1 outer opening; Because above-mentioned another part air stream can not be discharged outside the battery case 1; So the set-up mode of cooling effect, but can address this problem through the mode that sideboard or the 3rd air door 6 (asking for an interview hereinafter describes) are set not as in said battery case 1, opening.See also shown in Fig. 5 a～5d; In another specific embodiment of the present invention (main distinction of this specific embodiment and aforementioned specific embodiment is also to be provided with the 3rd air door 6); Said second air door 7 is arranged to towards said battery case 1 outer opening; Said heat exchange structure of power battery box also comprises the 3rd air door 6, and said the 3rd air door 6 is arranged in the said battery case 1 perpendicular to said second air door 7 and towards said air driven element 11, and said control unit is electrically connected said the 3rd air door 6.Adopt first air door 5 control air-flows whether to flow into battery cases, whether with two air door assemblies (second air door 7 and the 3rd air door 6) control air-flows outflow battery case 1.Therefore, the switching between circulating in the case when case separate ventilation and heating cycle when adopting one group of air driven element 11 and two air door assembly (second air door 7 and the 3rd air door 6) to solve the cooling operating mode has formed forced convection.
In specific embodiment of the present invention, said heating element 13 is arranged on the downstream of said air driven element 11.Use heating element 13 heating battery casees 1 interior air that battery pack 4 is heated up.See also shown in Fig. 5 c, heating element 13 is installed in the downstream of air driven element 11, and the porch at the 3rd air door 6 is parallel to airflow direction, and to reduce air drag, position is principle not influence air-flow from 7 discharges of second air door.The quantity of heating element 13 can be according to required maximum power decision, and its caloric value can be by the wind speed decision of flowing through it.Therefore,, needs can increase the air quantity of air driven element 11 when increasing heat.Heating element 13 is only worked when heating mode, when refrigerating mode, should turn-off.
Preferably, the battery module of said battery pack 4 was arranged number more than or equal to 2 o'clock, said battery module serial or parallel connection, and said heat exchange structure of power battery box also comprises dividing plate 3, is provided with said dividing plate 3 between the said battery module of adjacent two rows.In specific embodiment of the present invention, have 2 row's battery modules, between separate with dividing plate 3, battery case 1 is isolated into the space of strip, be formed with the gas channel that is beneficial to air circulation.
Preferably, said heat exchange structure of power battery box also comprises cushion block 10, and said bottom space and said headroom are respectively arranged with at least one said cushion block 10.In specific embodiment of the present invention, the said cushion block 10 that is in the said bottom space is integrally formed with the bottom 8 of described battery case 1, and the said cushion block 10 that is in the said headroom is integrally formed with the top 9 of described battery case 1.Reduce the structure installation workload, improved installation quality, improved member reliability and durability.
More preferably, said cushion block 10 is the column cushion block, and its cross section is a streamlined.Such as the cross section of said cushion block 10 can be for circular or oval.See also shown in Figure 4ly, in specific embodiment of the present invention, the cross section of said column cushion block is oval.Reduce the flow resistance in the gas channel, thereby reduced the power consumption of air driven element 11.
Preferably, said air driven element 11 is fans.More preferably, said heat exchange structure of power battery box also comprises fan panel 12, and said fan panel 12 is installed in the said battery case 1, and said fan is installed in the said fan panel 12.See also shown in Fig. 5 c and Fig. 5 d; In specific embodiment of the present invention; Said fan panel 12 is oblique flat boards, and this plate constitutes triangle column space with two air door assemblies (second air door 7 and the 3rd air door 6), and the air stream of fans drive is controlled by this pair air door assembly; Via the 3rd air door 6 air is sent into the gas channel of battery pack 4 tops in the battery case 1, or air is discharged outside the battery case 1 via second air door 7.
Preferably, said heating element 13 is PTC elements.In specific embodiment of the present invention, said PTC element is a heating ceramic PTC plate.
In specific embodiment of the present invention, said temperature monitoring element is a temperature sensor.Be used to monitor battery temperature.
Preferably, said battery case 1 comprises battery box cover 2 and Battery case 14, and said battery box cover 2 covers on said Battery case 14, and said first air door 5 is arranged on the said battery box cover 2 with said second air door 7.First air door 5 should be enough far away with two air door assembly (second air door 7 and the 3rd air door 6) distances, and design is got back to air inlet in a large number and reduced cooling effect to prevent the air outlet air at the two ends of battery case 1 as far as possible.In specific embodiment of the present invention, said first air door 5 and said second air door 7 are arranged on the upper side at the relative two ends of said battery box cover 2.Said first air door 5 is provided with said battery box cover 2 sealings respectively with said second air door 7.The opening and closing of air door are carried out by motor, and each air door respectively has an actuating motor to be electrically connected with control unit.
The main feature of said system has and is to use dividing plate 3 that battery case 1 is isolated into the space of strip at three: one, is formed with the gas channel that is beneficial to air circulation; The 2nd, only with the cooling in the space of one group of each strip of fans drive with heat required forced convection, simplify the structure; The 3rd, air inlet (first air door 5) is arranged on personnel's passenger cabin, needn't install air filter and dehydrating unit additional, simplifies the structure.
Therefore the upper and lower surfaces of battery pack 4 is designed to main heat-delivery surface because of comparing the area of dissipation maximum with its side.Air stream is arranged essentially parallel to this surface, takes away heat.It is less that gap between the battery module of battery pack 4 should keep, the feasible unlikely a large amount of short circuits of air-flow of flowing through upper and lower surface.
When the present invention installed and used, first air port 5 and second air port 7 were communicated with personnel's passenger cabin of vehicle, and first air door 5 position in car is near apart from air-conditioner air outlet than second air door 7, can be arranged in front-row seats both sides or below, or the console below.Said second air door 7 can be arranged in the position after personnel's passenger cabin leans on, in back seat below or luggage compartment.
The present invention has two kinds of basic working modes, i.e. refrigerating mode and heating mode.A later specific embodiment (being the specific embodiment shown in Fig. 5 a～5d) is an example, and the switching between the mode of operation realizes through three air doors of control (first air door 5, second air door 7, the 3rd air door 6).
When temperature sensor detects battery temperature when being suitable for battery operated maximum temperature, control unit is carried out refrigerating mode, at refrigerating mode; Control unit is controlled first air door 5 and is opened; Second air door 7 is opened, and the 3rd air door 6 is closed, and opens fan; Close heating ceramic PTC plate, see also shown in Fig. 6 a～6d.Fan is extracted the air in the battery case 1 out through second air door 7, make the vacuum that forms in the battery case 1 to a certain degree, and the air of personnel's passenger cabin gets into battery case 1 to fill up this vacuum through first air door 5, and airflow direction is shown in Fig. 6 a and 6b.Can guarantee to flow through the air-flow velocity basically identical on battery pack 4 upper and lower surfaces through the gap delta of regulating 4 of the 3rd air door 6 and battery pack, see also shown in Fig. 6 c.
Be lower than when being suitable for battery operated minimum temperature when temperature sensor detects battery temperature, control unit is carried out heating mode, at heating mode; Control unit is controlled first air door 5 and is closed, and second air door 7 is closed, and the 3rd air door 6 is opened; Open heating ceramic PTC plate, see also shown in Fig. 7 a～7d.Fan forms circulation with the air in the battery case 1 through the 3rd air door 6 in battery case 1, see also shown in Fig. 7 b.And with the uniform temperature of battery cell be desired value with closed loop control method through control rotation speed of the fan (air quantity) and then control semiconductor heating pottery (PTC) temperature (seeing shown in Fig. 7 c); Battery case 1 interior air is heated up by acceptable maximum rate, and after reaching the temperature objectives value, remain unchanged.
As stated, the switching between the mode of operation is controlled such as battery management system (BMS) by control unit.The battery temperature of gathering according to temperature sensor sends control signal by control program to three air doors (first air door 5, second air door 7, the 3rd air door 6), fan and heating ceramic PTC plate.Be to save the energy consumption of fan and heating ceramic PTC plate, can regulate air output as required and PTC adds heat.
The present invention adds extra refrigeration, filtering, dehumidification system through utilizing in the passenger cabin air to save as battery case 1 coolant, simplifies the structure, and has reduced cost; Reach the purpose of the air-flow on balancing battery group 4 upper and lower surfaces through adjustment to the gap of 4 of the 3rd air door 6 and battery pack; The height of the cushion block 10 of said headroom and said bottom space can be different, and promptly the bottom 8 of the top 9 of battery case 1 and battery case 1 can be different with spacing between the battery pack 4, also can be used as the means of balancing battery group 4 upper and lower airflow on surface flows.
Through the present invention, at first be the fail safe that has improved battery pack 4.The heat that when the battery high current charge-discharge, produces possibly cause that battery pack 4 is overheated if effectively do not leave, cell expansion, packing explosion even burning.The present invention effectively manages temperature in the battery case 1, has reduced the threat of 4 couples of personnel of battery pack and vehicle greatly.
The present invention can also guarantee that battery pack 4 farthest brings into play its performance.It has improved the operational environment of battery pack 4 effectively, prevents the capacity that it causes when too high or too low for temperature and the decline of charging and discharging capabilities, helps vehicle under various environmental conditions, all to reach continual mileage, acceleration and grade climbing performance, the charging interval of design.
The present invention has taken into full account the uniformity of heat exchange when for battery pack 4 good working environment being provided, the dead angle of flowing around the battery pack 4 in the battery case 1 is few, has avoided a large amount of short circuits of air-flow.
The present invention is in the terseness that has taken into full account system for battery pack 4 when good working environment is provided, and the amount of parts of system is few, cost is low, under the effect prerequisite of heat exchange flow resistance is reduced as far as possible satisfying, thereby the power consumption of system is lower.System's control is simple, reliable, efficient.
To sum up; Heat exchange structure of power battery box design of the present invention is ingenious; Simple in structure, cost is low, control conveniently, take into account cooling and heating, thereby solve the problem of pure electronic, motor vehicle driven by mixed power battery case heat management, satisfy the harsh requirement of battery to its working temperature; Promote the performance of battery, be suitable for large-scale promotion application.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (15)
1. heat exchange structure of power battery box; Comprise battery case and at least one battery pack; It is characterized in that; Said heat exchange structure of power battery box also comprises first air door, second air door, at least one air driven element, at least one heating element, control unit and temperature monitoring element; Said temperature monitoring element is arranged in the battery module of said battery pack, and said battery pack is erected at the middle part of said battery case, and the upper surface of said battery pack, lower surface and side are respectively and have headroom, bottom space and side space between the top of said battery case, bottom and the side; Said heating element is installed in the said battery case; Said first air door and said second air door are arranged on the said battery case, and said air driven element is installed in the said battery case and acutangulates setting towards said second air door and with said second air door, and said control unit is electrically connected said first air door, said second air door, said air driven element, said heating element and said temperature monitoring element.
2. heat exchange structure of power battery box according to claim 1 is characterized in that, said heating element is arranged on the downstream of said air driven element and does not hinder the unlatching of said second air door.
3. heat exchange structure of power battery box according to claim 1; It is characterized in that the battery module number of said battery pack is more than or equal to 2, said battery module serial or parallel connection; Battery module number in the said battery pack is arranged or is arranged more with one more for a long time and places said battery case; When said battery case contained the above battery module of 2 rows, said heat exchange structure of power battery box also comprised dividing plate, was provided with said dividing plate between the said battery module of adjacent two rows.
4. heat exchange structure of power battery box according to claim 1 is characterized in that said heat exchange structure of power battery box also comprises cushion block, and said bottom space and said headroom are respectively arranged with at least one said cushion block.
5. heat exchange structure of power battery box according to claim 4; It is characterized in that; The bottom that is in said cushion block and described battery case in the said bottom space is integrally formed, and the top that is in said cushion block and described battery case in the said headroom is integrally formed.
6. heat exchange structure of power battery box according to claim 4 is characterized in that, said cushion block is the column cushion block, and the cross section of said column cushion block is circular or oval.
7. heat exchange structure of power battery box according to claim 1 is characterized in that, said air driven element is a fan.
8. heat exchange structure of power battery box according to claim 7 is characterized in that said heat exchange structure of power battery box also comprises fan panel, and said fan panel is installed in the said battery case, and said fan is installed in the said fan panel.
9. heat exchange structure of power battery box according to claim 1 is characterized in that, said heating element is the PTC element.
10. heat exchange structure of power battery box according to claim 9 is characterized in that, said PTC element is a heating ceramic PTC plate.
11. heat exchange structure of power battery box according to claim 1 is characterized in that, said temperature monitoring element is a temperature sensor.
12. heat exchange structure of power battery box according to claim 1; It is characterized in that; Said battery case comprises battery box cover and Battery case, and said battery box cover covers on said Battery case, and said first air door and said second air door are arranged on the said battery box cover.
13. heat exchange structure of power battery box according to claim 12 is characterized in that, said first air door and said second air door are arranged on the upper side at the relative two ends of said battery box cover.
14. heat exchange structure of power battery box according to claim 12 is characterized in that, said first air door and said second air door are provided with said battery box cover sealing respectively.
15. heat exchange structure of power battery box according to claim 1; It is characterized in that; Said second air door is arranged to open outward towards said battery case; Said heat exchange structure of power battery box also comprises the 3rd air door, and it is interior perpendicular to said second air door and towards said air driven element that said the 3rd air door is arranged on said battery case, and said control unit is electrically connected said the 3rd air door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101306247A CN101789518B (en) | 2010-03-23 | 2010-03-23 | Heat exchange structure of power battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101306247A CN101789518B (en) | 2010-03-23 | 2010-03-23 | Heat exchange structure of power battery box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101789518A CN101789518A (en) | 2010-07-28 |
| CN101789518B true CN101789518B (en) | 2012-01-04 |
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| CN2010101306247A Expired - Fee Related CN101789518B (en) | 2010-03-23 | 2010-03-23 | Heat exchange structure of power battery box |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950798B (en) * | 2010-09-03 | 2012-10-17 | 北京理工大学 | Battery box |
| CN102054952B (en) * | 2010-12-11 | 2013-04-17 | 徐荣辉 | Insulation can special for sodium-sulphur battery |
| CN102208700A (en) * | 2011-04-25 | 2011-10-05 | 奇瑞汽车股份有限公司 | Automatic heating system of lithium-ion power battery for electric vehicle |
| CN102790191B (en) * | 2011-05-18 | 2014-12-17 | 北汽福田汽车股份有限公司 | Device and method for controlling temperature of external environment of battery |
| CN102255115B (en) * | 2011-06-14 | 2014-07-30 | 奇瑞汽车股份有限公司 | Heat management system and method for battery pack of electric automobile |
| CN102854020B (en) * | 2011-06-30 | 2015-05-13 | 杭州市电力局 | System and method for battery air-cooling test of electromobile |
| CN102354772A (en) * | 2011-08-31 | 2012-02-15 | 重庆长安汽车股份有限公司 | Internal circulating heat radiation system of power battery for pure electric vehicle |
| CN102751455A (en) * | 2012-07-09 | 2012-10-24 | 金太洙 | Intelligent ventilating temperature-control battery cabinet for communication base station and control method thereof |
| CN103346362B (en) * | 2013-06-20 | 2016-04-13 | 华南理工大学 | A kind of battery of electric vehicle air-cooling apparatus |
| CN103730707A (en) * | 2013-10-18 | 2014-04-16 | 吉林省高新电动汽车有限公司 | Constant-temperature battery box of electric automobile and heat management control method of constant-temperature battery box |
| CN103618121B (en) * | 2013-12-11 | 2016-12-28 | 重庆长安汽车股份有限公司 | A kind of electrokinetic cell heat management structure and thermal management algorithm |
| CN105922984A (en) * | 2016-04-22 | 2016-09-07 | 北京新能源汽车股份有限公司 | Hybrid electric vehicle, and method and device for controlling power system thereof |
| CN106842062A (en) * | 2017-03-29 | 2017-06-13 | 广州中国科学院工业技术研究院 | Secondary cell thermal runaway test device and its method of testing |
| CN108549031A (en) * | 2018-03-26 | 2018-09-18 | 奇瑞汽车股份有限公司 | A kind of power battery cycle endurance test rack |
| CN110126676B (en) * | 2019-04-02 | 2020-08-14 | 湖州职业技术学院 | Battery cooling and heating device for electric automobile |
| CN111216601B (en) * | 2020-01-09 | 2021-05-11 | 绍兴市秀臻新能源科技有限公司 | Low-temperature-resistant power supply system for new energy vehicle |
| CN114628843A (en) * | 2022-01-26 | 2022-06-14 | 靖江市东达铝业有限公司 | Aluminum-based battery shell with bottom shock absorption protection heat conduction mechanism |
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| US20040081885A1 (en) * | 2002-10-29 | 2004-04-29 | Bernd Ziegler | Battery pack |
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| CN101577353A (en) * | 2009-05-07 | 2009-11-11 | 联合汽车电子有限公司 | Automobile battery thermal management system and working method thereof |
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| JP2008041376A (en) * | 2006-08-04 | 2008-02-21 | Toyota Motor Corp | Warming/cooling system for vehicular battery pack |
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| US20040081885A1 (en) * | 2002-10-29 | 2004-04-29 | Bernd Ziegler | Battery pack |
| CN2850003Y (en) * | 2005-10-17 | 2006-12-20 | 李慧琪 | Heat balance treater for lithium ion power battery |
| CN200969366Y (en) * | 2006-10-25 | 2007-10-31 | 上海万宏动力能源有限公司 | Accumulator battery for mixed motor vehicle of wind cooling forced radiating structure |
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