CN203277589U - Grouping thermal control box for electric motor coach power battery - Google Patents
Grouping thermal control box for electric motor coach power battery Download PDFInfo
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- CN203277589U CN203277589U CN2013202679662U CN201320267966U CN203277589U CN 203277589 U CN203277589 U CN 203277589U CN 2013202679662 U CN2013202679662 U CN 2013202679662U CN 201320267966 U CN201320267966 U CN 201320267966U CN 203277589 U CN203277589 U CN 203277589U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a grouping thermal control box for an electric motor coach power battery. The box is equally divided into an air inlet module bin and an air outlet module bin, which are the same in structure, by a vertical clapboard; the rear walls of the tops of the air inlet module bin and the air outlet module bin are externally connected with a horizontal penetration air duct; each of the air inlet module bin and the air outlet module bin comprises a vertical air duct and a battery grouping bin; each battery grouping bin is internally provided with a lower air duct wedge-shaped baffle, a grating heating bracket and an upper air duct wedge-shaped baffle from top to bottom; each grating heating bracket comprises a net-shaped grating and heating strips which are laid on the grating; single battery batteries are uniformly distributed on each grating heating bracket in an orderly management mode or a staggered arrangement mode; the distance between the adjacent single batteries is 2-10mm; air inlets and air outlets are respectively formed in the front walls of the air inlet module bin and the air outlet module bin; fans are arranged on the inner walls of the air inlets and the air outlets. According to the grouping thermal control box, the efficient forced air cooling and the fast heating temperature rising of the batteries can be realized; the temperatures of the batteries are uniform; rain and dust can be prevented; the vibration buffering performance is good, and the dismounting is easy.
Description
Technical field
The utility model relates to new-energy automobile power battery thermal management technology field, is specifically related to pure electric automobile or hybrid power passenger car with electrokinetic cell thermal control casing in groups.
Background technology
The key problem in technology of electric motor coach is electrokinetic cell, and the quality of electrokinetic cell performance has directly determined the market prospects in electric motor coach future.Due to temperature can directly affect serviceability and life-span of battery, too highly may cause security incident.On vehicle, the space is limited simultaneously, battery is all closely to connect to be loaded in the automobile batteries bag, electrokinetic cell can discharge a large amount of heat in charge and discharge process, be subjected to spacial influence to produce accumulation of heat, if this heat can not in time be discharged from, heat will make the temperature of power brick rise, thereby affects the useful life of electrokinetic cell, the summer of sweltering heat this phenomenon particularly evident.If the battery thermal management system imperfection, can cause that power brick modules temperature distributing disproportionation is even simultaneously, make the operational environment of each battery cell different, this will have a strong impact on the consistency of battery cell, thereby have a strong impact on the discharge performance of battery.
On the other hand, the service behaviour of electric motor coach electrokinetic cell under low temperature condition is very poor, and special particularly evident in the winter of cold, charge-discharge characteristic is than far short of what is expected under normal temperature.In order to make battery also can satisfy at low temperatures the power demand of electric automobile, necessary power brick is carried out heat temperature raising, make it to be in the best temperature levels that discharges and recharges.
On present electric motor coach, generally power battery pack is placed in the space of luggage case of traditional passenger vehicle, as shown in Figure 1.For electrocar, the space of passenger vehicle placement power battery pack is relatively large, but because the battery capacity of electric motor coach is more much bigger than electrocar, needs to use more battery, so the electrokinetic cell operational environment in electric motor coach is still very poor.Present most electric motor coach does not carry out the hot Group Design of special electrokinetic cell, only carry out battery structural design in groups according to the electric automobile during traveling power demand, there is no the heat localization effect in the use procedure of reasonable consideration electrokinetic cell, do not carry out the design of rational electrokinetic cell heat temperature raising unit yet.Even done electrokinetic cell heat management design, it is mostly also simple heat dissipation design, as lifting on door in Fig. 1, only adopt the air exhauster of simple function, the heat of battery pack inner accumulated is discharged, and the heat transmission in battery pack still relies on free convection to realize, exchange capability of heat is poor, do not force wind directly to skim over the surface of electrokinetic cell, can't effectively dispel the heat to battery.
Simultaneously, existing electric motor coach is mostly sent hot blast by the air-conditioning system of passenger vehicle self, electrokinetic cell is carried out the heating of heat convection form.Because heat convection must have certain heat transfer temperature difference, inevitable some heat is wasted by the heat exchange tail gas that emits, and causes the reduction of the efficiency of heating surface.
Summary of the invention
The purpose of this utility model, be to overcome the deficiency of existing electric motor coach power battery thermal management system structural design, a kind of casing of thermal control in groups of electric motor coach electrokinetic cell is provided simultaneously, realizes quick efficiently radiates heat cooling and the heat temperature raising of electric motor coach electrokinetic cell.
The utility model adopts following technical scheme:
A kind of casing of thermal control in groups of electric motor coach electrokinetic cell, it is characterized in that: the thermal control casing is divided into the identical air intake module storehouse of structure and air-out module storehouse two parts by the vertical clapboard equity, and the external level of top rear wall in air intake module storehouse and air-out module storehouse runs through the air channel; Air intake module storehouse and air-out module storehouse form in the storehouse in groups by vertically air channel, battery, and battery is from bottom to top arranged lower air duct wedge shaped baffle, grid heated holder and upper air duct wedge shaped baffle in the storehouse in groups successively; The grid heated holder is comprised of mesh grille and laying fire-bar above it; Adopt in-line arrangement or wrong row's mode to be evenly arranged cell on the grid heated holder, the gap between cell is 2～10mm; Offer respectively air inlet and air outlet on the antetheca in air intake module storehouse and air-out module storehouse, forced draft fan and air exhauster are set respectively on the inwall of air inlet and air outlet.
Described thermal control casing is placed in vehicle bottom two outsides of electric motor coach, and each car arranges 2～10 groups of electrokinetic cell thermal control casings.
Described battery arranges 2～10 layers of grid heated holder in the storehouse in groups.
The level inclination of described upper air duct wedge shaped baffle and lower air duct wedge shaped baffle is 2～20 °.
Arranging of described air inlet and air outlet highly is 2/3～1 of Control Box height.
Arrange on the car body of the external side of described Control Box and lift door.
Described lifting arranges rainproof air feed shutter and rainproof air-out blinds on door.
The height that aspect ratio air inlet and air outlet are set of described rainproof air feed shutter and rainproof air-out blinds hangs down 20～100mm.
Compared with prior art, the utlity model has following advantage:
(1) run through the air channel by the thermal control casing being divided into air intake module storehouse, air-out module storehouse with the level that is connected two module storehouses, make under the heat radiation operating mode, the outer fresh cold air of car body continues to flow in the Control Box body, the heat that electrokinetic cell produces is taken out of, realize air blast cooling, overcome the shortcoming of the heat transfer free convection weak effect of conventional electric motor coach, heat exchange coefficient is large, can realize battery is effectively dispelled the heat.
(2) fire-bar is arranged on the grille frame of cell bottom, under heating cycle, closes forced draft fan and air exhauster like this, can with the form of direct contact, realize the heat conduction heat exchange type heating to each cell.Because the shell of electrokinetic cell is generally aluminium or stainless steel, its conductive coefficient is high, can realize fast the intensification of battery case, thereby realizes the Fast Heating to inner battery material, and energy utilization efficiency is high; Simultaneously, this structural design has been avoided the obstruction of fire-bar to circulation of air under the heat dissipation ventilation operating mode, has reduced air drag, has reduced the power demand of forced draft fan and air exhauster; And because the exterior material of fire-bar is generally the flexible material of heatproof, its good springiness can cushion the battery vibrations in the bus driving process well, improves the reliability of electrokinetic cell safe operation.
(3) on the structural design in air intake module storehouse, air-out module storehouse, all by vertical air channel, lower air duct, the electrokinetic cell Duct design such as storehouse, upper air duct in groups, mode multilayer with cell by in-line arrangement or wrong row is arranged in the electrokinetic cell storehouse, and the wedge-shaped design by upper air duct and lower air duct, making the Air Flow in two module storehouses is all parallel flow regime, can distribute more equably air-flow, thereby guarantee that in power brick, heat radiation everywhere is consistent.
(4) by air inlet and air outlet being arranged on the top of Control Box body sidewall, avoid electric motor coach to have water or other liquid to enter in the thermal control casing in rainy day or the driving process of paddling, and arrange rainproof air feed shutter and the rainproof air-out blinds outside car body lower than air inlet and air outlet, also further avoided the foreign material such as water droplet, drop, dust granule to enter the thermal control box house.
(5) Structured Design by the thermal control casing, realized the modularization installation of electric motor coach electrokinetic cell, having simplified the installation procedure of electrokinetic cell, be conducive to electrokinetic cell integral demounting and installation, is a kind of feasible battery structure design that electric motor coach changes electric operational mode.
Description of drawings
Fig. 1 is a kind of electric motor coach exterior contour figure of the present utility model.
Fig. 2 is the external structure of electrokinetic cell thermal control casing of the present utility model.
Fig. 3 is A-A section left view in the utility model Fig. 2.
Fig. 4 is B-B section left view in the utility model Fig. 2.
Fig. 5 is view under the C-C section in the utility model Fig. 2.
Fig. 6 is grid heated holder vertical view of the present utility model.
Fig. 7 is the cutaway view of grid heated holder partial cross-section of the present utility model.
Number in the figure: 1 lifts door, 2 rainproof air feed shutters, 3 rainproof air-out blinds, 4 air intake module storehouses, 5 levels run through the air channel, 6 air-out module storehouses, 7 air outlets, 8 vertical clapboards, 9 air inlets, 10 air port baffle plates, the 11a forced draft fan, 11b air exhauster (as broad as long marking in figure), 12 vertical air channels, 13 vertical bafflers, 14 lower air ducts, 15 grid heated holder, 15a fire-bar, the 15b mesh grille, 16 lower air duct wedge shaped baffle, 17 batteries are the storehouse in groups, 18 cells, 19 upper air ducts, 20 upper air duct wedge shaped baffle.
Embodiment
As shown in Figure 1, the casing of thermal control in groups of this electric motor coach electrokinetic cell is placed in vehicle bottom two outsides of electric motor coach, and each car arranges 2～10 groups of electrokinetic cell thermal control casings, one-sided 4 groups of thermal control casings, totally 8 groups of arranging in the present embodiment.
As shown in Figure 2, the thermal control casing is divided into structure identical air intake module storehouse 4 and air-out module storehouse 6 two parts by vertical clapboard 8 equities, air intake module storehouse 4 and air-out module storehouse 6 all are cuboid, their the external level of top rear wall runs through air channel 5, and air intake module storehouse 4 and air-out module storehouse 6 are run through air channel 5 with level and communicated respectively.Offer respectively air inlet 9 and air outlet 7 on the antetheca in air intake module storehouse 4 and air-out module storehouse 6, in the present embodiment, air inlet 9 and air outlet 7 all are arranged to the ventilating opening of 2 groups of shutter forms, and arranging of they is highly 2/3～1 of Control Box height.
As shown in Figure 3, Figure 4, have water or other liquid to enter in the thermal control casing in rainy day or the driving process of paddling for fear of electric motor coach, the outside of air inlet 9 and air outlet 7 all arranges air port baffle plate 10.Forced draft fan 11a and air exhauster 11b are set respectively on the inwall of air inlet 9 and air outlet 7, the preferred centrifugal blower of forced draft fan 11a type in the present embodiment, air exhauster 11b type preferred axes flow fan, i.e. 2 centrifugal blowers and 2 axial flow blowers, in order to make the low flow resistance of the air of Control Box external body enter in casing, and flow out smoothly casing after carrying heat.
Air intake module storehouse 4 with air-out module storehouse 6 by vertically air channel 12, battery form in storehouse 17 in groups.Vertically air channel 12 by the antetheca of thermal control casing, sidewall, vertical clapboard 8 and vertically baffler 13 surround and form, vertically baffler 13 does not contact with the thermal control bottom half, reserves certain height so that formation lower air duct 14.
Battery is from bottom to top arranged lower air duct wedge shaped baffle 16, grid heated holder 15 and upper air duct wedge shaped baffle 20 in storehouse 17 in groups successively.The level inclination of upper air duct wedge shaped baffle 20 and lower air duct wedge shaped baffle 16 is 2～20 °, and the present embodiment is got 8 °.Grid heated holder 15 arranges 2～10 layers, adopt in-line arrangement or wrong row's mode to be evenly arranged cell 18 on every layer of grid heated holder 15, gap between cell 18 is 2～10mm, get the form of 3 layers of in-line arrangement in the present embodiment, cell 18 all directions gaps are all got 4mm, as shown in Figure 3-Figure 5.
As Fig. 6-shown in Figure 7, grid heated holder 15 is comprised of mesh grille 15b and the fire-bar 15a that lays above it, and the material of mesh grille 15b can adopt square stainless steel, and fire-bar 15a selects flexible silica gel heating band.Fire-bar 15a shape specification and square stainless steel are complementary, with the flow resistance of fire-bar 15a to air-flow under the operating mode that reduces to ventilate, flexible fire-bar 15a can cushion the battery vibrations in the bus driving process well simultaneously, improves the reliability of electrokinetic cell safe operation.
As shown in Figure 1, on the car body of every group of external side of Control Box, door 1 is lifted in setting.For fear of water or other liquid enter the thermal control box house, realize simultaneously the function of ventilation, lift the door 1 on the position corresponding with thermal control casing upper air inlet mouth 9 and air outlet 7 rainproof air feed shutter 2 and rainproof air-out blinds 3 are set, rainproof air feed shutter 2 in the present embodiment is similar with air outlet 7 to thermal control casing upper air inlet mouth 9 with rainproof air-out blinds 3 structures, and namely each lifts rainproof air feed shutter 2 and the rainproof air-out blinds 3 that 2 groups of shutter forms are set on door 1; And the height that aspect ratio air inlet 9 and air outlet 7 are set of rainproof air feed shutter 2 and rainproof air-out blinds 3 hangs down 20～100mm, gets 40mm in the present embodiment, has further avoided the bulky grain foreign material such as drop, dust to enter in the thermal control casing.
In actual moving process, when temperature of powered cell is too high, open forced draft fan 11a and air exhauster 11b, the air that electric motor coach is outer enters air intake module storehouse 4 by lifting air inlet 9 on rainproof air feed shutter 2 on door 1, air intake module storehouse 4.In air intake module storehouse 4, air-flow rises laggardly to enter level and run through air channel 5 through gap, the upper air duct 19 of the netted gap of vertical air channel 12, lower air duct 14, grid heated holder 15, electrokinetic cell storehouse 17 interior cells 18 successively, and air-flow enters air-out module storehouse 6 then.In air-out module storehouse 6, air-flow is the gap by upper air duct 19, electrokinetic cell storehouse 17 interior cells 18 and grid heated holder 15, lower air duct 14, vertical air channel 12 successively, is discharged by rainproof air-out blinds 3 through air outlet 7 under the effect of air exhauster 11b again.Symbol ⊙ in Fig. 3-Fig. 5 represent airflow direction be vertical paper from inside to outside, symbol
The expression airflow direction is vertical paper ecto-entad.
Realize the air blast cooling of electrokinetic cell by the open cycle of cold air, overcome the shortcoming of the heat transfer free convection weak effect of conventional electric motor coach, heat exchange coefficient is large, can realize battery is effectively dispelled the heat.
When temperature of powered cell was too low, forced draft fan 11a and air exhauster 11b did not start, and the fire-bar 15a on grid heated holder 15 starts work, respectively the electrokinetic cell monomer 18 that directly contacts on it were carried out conduction heat transfer.Because the shell of electrokinetic cell is generally aluminium or stainless steel, its conductive coefficient is high, can realize fast the intensification of battery case, thereby realizes the Fast Heating to inner battery material, and firing rate is fast, energy utilization efficiency is high.
Claims (8)
1. the casing of thermal control in groups of an electric motor coach electrokinetic cell, it is characterized in that: the thermal control casing is divided into the identical air intake module storehouse (4) of structure and air-out module storehouse (6) two parts by vertical clapboard (8) equity, and the external level of top rear wall in air intake module storehouse (4) and air-out module storehouse (6) runs through air channel (5); Air intake module storehouse (4) and air-out module storehouse (6) by vertically air channel (12), battery in groups storehouse (17) form, battery is from bottom to top arranged lower air duct wedge shaped baffle (16), grid heated holder (15) and upper air duct wedge shaped baffle (20) in storehouse (17) in groups successively; Grid heated holder (15) by mesh grille (15b) and lay above it fire-bar (15a) form; Upper in-line arrangement or the wrong row's mode of adopting of grid heated holder (15) is evenly arranged cell (18), and the gap between cell (18) is 2～10mm; Offer respectively air inlet (9) and air outlet (7) on the antetheca in air intake module storehouse (4) and air-out module storehouse (6), forced draft fan (11a) and air exhauster (11b) are set respectively on the inwall of air inlet (9) and air outlet (7).
2. the casing of thermal control in groups of a kind of electric motor coach electrokinetic cell according to claim 1, is characterized in that described thermal control casing is placed in vehicle bottom two outsides of electric motor coach, and each car arranges 2～10 groups of electrokinetic cell thermal control casings.
3. the casing of thermal control in groups of a kind of electric motor coach electrokinetic cell according to claim 1, is characterized in that described battery arranges 2～10 layers of grid heated holder (15) in storehouse (17) in groups.
4. the casing of thermal control in groups of a kind of electric motor coach electrokinetic cell according to claim 1, is characterized in that the level inclination of described upper air duct wedge shaped baffle (20) and lower air duct wedge shaped baffle (16) is 2～20 °.
5. the casing of thermal control in groups of a kind of electric motor coach electrokinetic cell according to claim 1, is characterized in that arranging of described air inlet (9) and air outlet (7) highly is 2/3～1 of Control Box height.
6. the casing of thermal control in groups of a kind of electric motor coach electrokinetic cell according to claim 1 is characterized in that arranging on the car body of the external side of described Control Box and lifts door (1).
7. the casing of thermal control in groups of a kind of electric motor coach electrokinetic cell according to claim 6, is characterized in that described lifting on door (1) arranges rainproof air feed shutter (2) and rainproof air-out blinds (3).
8. the casing of thermal control in groups of a kind of electric motor coach electrokinetic cell according to claim 7, is characterized in that the height that aspect ratio air inlet (9) and air outlet (7) are set of described rainproof air feed shutter (2) and rainproof air-out blinds (3) hangs down 20～100mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202679662U CN203277589U (en) | 2013-05-08 | 2013-05-08 | Grouping thermal control box for electric motor coach power battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202679662U CN203277589U (en) | 2013-05-08 | 2013-05-08 | Grouping thermal control box for electric motor coach power battery |
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| CN203277589U true CN203277589U (en) | 2013-11-06 |
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| CN2013202679662U Expired - Fee Related CN203277589U (en) | 2013-05-08 | 2013-05-08 | Grouping thermal control box for electric motor coach power battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273829A (en) * | 2013-05-08 | 2013-09-04 | 合肥工业大学 | Grouping thermal control box body of electric motor coach power batteries |
| CN104925143A (en) * | 2015-05-20 | 2015-09-23 | 湖南南车时代电动汽车股份有限公司 | Waterproof heat radiation method and device for storehouse door of high voltage electric parts for passenger car |
| CN106450578A (en) * | 2016-12-08 | 2017-02-22 | 湖南小步科技有限公司 | Battery pack air cooling system |
-
2013
- 2013-05-08 CN CN2013202679662U patent/CN203277589U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273829A (en) * | 2013-05-08 | 2013-09-04 | 合肥工业大学 | Grouping thermal control box body of electric motor coach power batteries |
| CN104925143A (en) * | 2015-05-20 | 2015-09-23 | 湖南南车时代电动汽车股份有限公司 | Waterproof heat radiation method and device for storehouse door of high voltage electric parts for passenger car |
| CN104925143B (en) * | 2015-05-20 | 2018-08-28 | 湖南南车时代电动汽车股份有限公司 | A kind of car high-voltage electricity device storehouse hatch door waterproof cooling method and device |
| CN106450578A (en) * | 2016-12-08 | 2017-02-22 | 湖南小步科技有限公司 | Battery pack air cooling system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160508 |