CN203521556U - Battery cooling structure - Google Patents
Battery cooling structure Download PDFInfo
- Publication number
- CN203521556U CN203521556U CN201320646314.XU CN201320646314U CN203521556U CN 203521556 U CN203521556 U CN 203521556U CN 201320646314 U CN201320646314 U CN 201320646314U CN 203521556 U CN203521556 U CN 203521556U
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- Prior art keywords
- cooling air
- air channel
- battery
- battery module
- channel
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- 238000001816 cooling Methods 0.000 title claims abstract description 82
- 239000002826 coolant Substances 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 abstract 2
- 230000000994 depressogenic effect Effects 0.000 description 16
- 239000000428 dust Substances 0.000 description 12
- 210000004027 cell Anatomy 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010616 electrical installation Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery cooling structure. In the battery cooling structure, three recesses (44-46) which partitions an air current channel (43) in a cooling air channel (4) into four branched air current channels (43a-43d) and partitions a leading-out port into four branched leading-out ports (42a-42d) are formed in the cooling air channel (4) and close to the leading-out port. Each of the three recesses (44-46) is provided with two side walls for gradually reducing the channel areas of respective adjacent branched air current channels along the flow direction of a cooling medium respectively. By adopting the battery cooling structure, the temperature distribution state of a battery module can be controlled.
Description
Technical field
The utility model relates to battery cooling structure, particularly a kind of for carry the air channel of the coolants such as air to battery.
Background technology
On electric motor car or hybrid vehicle, be all equiped with the battery that electric energy is provided to motor.As battery, common use is the secondary cell of charging and discharging repeatedly.
Secondary cell is that the battery module being laminated by cell forms.This battery module and with electrical installation be accommodated in battery case and form battery pack.
Battery module generates heat because of inner electrochemical reaction, and when temperature is too high, the efficiency of charging and discharging can reduce.Thereby, normally by carrying air etc. to carry out cooling to battery module in battery case.For example, patent documentation 1 discloses a kind of air channel of carrying air to use to battery module.Via this air channel, flow into air in battery case from the downside of battery module side flow and battery module is cooling up.
When controlling the charging and discharging of battery module, be necessary to monitor the state of this battery module.Conventionally, with temperature sensor, detect the temperature of battery module.For example, can be at the regulation position of battery module configuration contact type temperature sensor.As temperature detection position, it must be the position that can correctly monitor battery module state.Comparatively it is desirable to, detect the temperature at the position that in battery module, temperature is the highest.
Yet corresponding to operation conditions etc., the temperature at each position of battery module likely can change.For example, from air channel, to after battery module air-supply, compare when not blowing, heat dissipation capacity and the Temperature Distribution on battery module at each position all can change.
In addition, the amount of dust that the temperature at each position of battery module is piled up because of each position is different.That is, pile up dusty position because air is difficult to flow, so temperature is higher.But, due to the dust accretions amount that is difficult to infer on each position, so be difficult to infer the temperature distribution state be subject to the battery module that dust affects.
Thereby, in prior art, exist because the Temperature Distribution of battery module is subject to the left and right of air flow amount and dust accretions amount, so be difficult to set the such problem in temperature detection position that can correctly monitor battery module state.
[patent documentation 1]: TOHKEMY 2007-227030 communique
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is, a kind of battery cooling structure of temperature distribution state that can paying attention battery module is provided.
As the technical scheme solving the problems of the technologies described above, battery cooling structure of the present utility model, to battery, to carry the battery cooling structure of coolant from the export mouth of cooling air channel, it is characterized in that: the close described export mouth place in described cooling air channel, be provided with the gas channel in described cooling air channel is separated into Si Ge branch gas channel, and described export mouth is separated into three recesses of four minutes export mouths, these three recesses respectively have makes two sidewalls reducing gradually along the flow direction of described coolant with the aisle spare of adjacent separately described branch gas channel.
The advantage of above-mentioned battery cooling structure of the present utility model is, because gas channel is separated into Si Ge branch gas channel, the aisle spare of Qie Ge branch gas channel reduces gradually along the flow direction of coolant, thus a part of coolant can be in battery module in formation can assemble the eddy current of dust.Owing to having assembled the mobile of coolant in the region of dust, hindered, so temperature is higher than the temperature in other region.Like this, just can determine the highest region of temperature in battery module, hold the temperature distribution state in battery module, thereby temperature detection position is set to the position that can correctly monitor battery module state.
In addition, in above-mentioned battery cooling structure of the present utility model, described three recesses are along the direction of the center line perpendicular to described cooling air channel, separate predetermined distance and be arranged in the inside of described cooling air channel.
Further, described three recesses are formed, one end of described two sidewalls separately is connected in described cooling air channel, the other end extends to respectively the described export mouth place of described cooling air channel, and this export mouth is separated into described four minutes export mouths, be arranged in two sidewalls separately of two described recesses of both sides, the described parallel sidewalls at the center of close described cooling air channel is in the center line of described cooling air channel, described sidewall away from the center of described cooling air channel favours the center line of described cooling air channel with predetermined angular, described two sidewalls of a described recess in the middle of being positioned at favour the center line of described cooling air channel symmetrically with predetermined angular.
Adopt this structure, can utilize the different sidewall in angle of inclination of three recesses that separate predetermined distance and arrange along the direction of the center line perpendicular to cooling air channel, make coolant in battery module, form a plurality of eddy current, and make to bump between these eddy current, and by dust accumulation the regulation region at battery module.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the battery pack in execution mode of the present utility model.
Fig. 2 is the stereogram of the cooling air channel in execution mode.
Fig. 3 is the sectional view on the X-X line in Fig. 2.
Fig. 4 is the mobile battery pack of situation of cooling air and the sectional view of periphery illustrating in execution mode.
Fig. 5 is the flow vertical view of situation of cooling air that cooling air channel inside in execution mode and battery case inside is shown.
Fig. 6 is the sectional view that the cooling air channel inside in comparative example is shown.
Fig. 7 is the flow vertical view of situation of cooling air that cooling air channel inside in comparative example and battery case inside is shown.
Embodiment
Below, with reference to accompanying drawing, embodiment of the present utility model is described.In the present embodiment, for the situation that battery cooling structure of the present utility model is applied to the battery module that automobile installs, describe.
Fig. 1 is the exploded perspective view of the battery pack 1 in present embodiment.The allocation position of battery pack 1 is circumscribed not, for example, can be configured in the downside of the rear portion seat of automobile.As shown in Figure 1, battery pack 1 comprises that the battery case 2(consisting of lower box body 21 and upper cartridge body 22 is with reference to Fig. 4) and be contained in the battery module (being the said battery of the utility model) 3 in this battery case 2.
In addition, the flange 21b of lower box body 21 and the flange 22c of upper cartridge body 22 are superimposed, and are fixed together by screw bolt and nut.So, by battery module 3 and subsidiary electrical installation (not shown) thereof are contained in battery case 2, just formed battery pack 1.
Below, the cooling air channel 4 that subtend battery module 3 carries air to use describes.Fig. 2 is the stereogram of cooling air channel 4.Fig. 3 is the sectional view on the X-X line in Fig. 2.
In order to form Zhe Sige branch air duct (the 1st passage 43a-the 4th passage 43d), as shown in Figure 3, inside (near air export mouth place) at the horizontal part 42 of cooling air channel 4, direction along the center line perpendicular to cooling air channel 4, separate predetermined distance and be provided with three recesses, be i.e. the 1st depressed part the 44, the 2nd depressed part the 45, the 3rd depressed part 46.These three depressed parts (44-46) are separated into Si Ge branch air duct (43a-43d) by air duct 43, and air export mouth is separated into four air export mouths (42a-42d).The plan view shape of each depressed part (44-46) is triangle.
The 1st depressed part 44 is separated the 1st passage 43a and the 2nd passage 43b.By one end, the 1st sidewall 44a, the 2nd sidewall 44b that inside is connected, the other end extends to respectively the 1st opening 42a, the 2nd opening 42b at cooling air channel 4 forms the 1st depressed part 44.Wherein, the 1st sidewall 44a favours the center line (not shown) of cooling air channel 4 with predetermined angular, and the 2nd sidewall 44b is parallel to the center line of cooling air channel 4.The 2nd depressed part 45 is separated the 2nd passage 43b and the 3rd passage 43c.By one end, the 1st sidewall 45a, the 2nd sidewall 45b that inside is connected, the other end extends to respectively the 2nd opening 42b, the 3rd opening 42c at cooling air channel 4 forms the 2nd depressed part 45.Wherein, the 1st sidewall 45a and the 2nd sidewall 45b favour the center line of cooling air channel 4 symmetrically with predetermined angular.The 3rd depressed part 46 is separated the 3rd passage 43c and the 4th passage 43d.By one end, the 1st sidewall 46a, the 2nd sidewall 46b that inside is connected, the other end extends to respectively the 4th opening 42d, the 3rd opening 42c at cooling air channel 4 forms the 3rd depressed part 46.Wherein, the 1st sidewall 46a favours the center line of cooling air channel 4; The 2nd sidewall 46b is parallel to the center line of cooling air channel 4.
Because the plan view shape of each depressed part (44,45,46) is that pinnacle is in face of the triangle of air-flow direction (direction of arrow in Fig. 3), so the gas channel area of each branch's air duct (43a-43d) reduces gradually along air-flow direction.
In addition, as shown in Figure 4, described upper space 12 is being communicated with exhaust duct 5.On this exhaust duct 5, be equiped with ventilating fan 6.When the detected battery temperature of temperature sensor (not shown) being arranged on battery module 3 described later reaches setting when above, ventilating fan 6 is activated.Because of the action of this ventilating fan 6, as shown in the locking wire arrow in Fig. 4, the indoor air of car flows in battery case 2 via cooling air channel 4, and flows to upper space 12 from lower space 11, and battery module 3 is cooling afterwards from exhaust duct 5 discharges.
Below, to cooling air in the inside of cooling air channel 4 and the situation of the internal flow of battery case 2 describe.Fig. 5 illustrates cooling air in the inside of cooling air channel 4 and the vertical view of the flow condition of the inside of battery case 2.
As shown in Figure 5, air flows into the inside of battery case 2 from each air export mouth (42a-42d) via each branch's air duct (43a-43d).Now, from the 2nd opening 42b and the 3rd opening 42c, flow into air in battery case 2 along the 1st sidewall 45a and the 2nd sidewall 45b of the 2nd depressed part 45, the state of being partial to a little battery case 2 both sides with flow direction flows into the inside of battery case 2.Therefore, from the 2nd opening 42b leaked-in air with from (shown in the arrow I figure) the phase mutual interference of the 1st opening 42a leaked-in air, near the downstream of the Air Flow of the inside of battery case 2, form mobile to the inside eddy current (shown in the arrow II in figure).Equally, from the 3rd opening 42c leaked-in air with from (shown in the arrow IV figure) the phase mutual interference of the 4th opening 42d leaked-in air, near the downstream of the Air Flow of the inside of battery case 2, form mobile to the inside eddy current (shown in the arrow III in figure).These eddy current can clash near the centre position (centre position of the Width of the battery case 2) downstream of the Air Flow of the inside of battery case 2.Thereby the dust of battery case 2 interior existence can gather the position (the region B in Fig. 5) clashing between these eddy current.
After battery module 3 is used for a long time, the amount of the upper dust of assembling of this region B can be increased to the degree of the temperature that affects battery module 3.That is, the Air Flow on the B of this region can be subject to the obstruction of dust, thereby the temperature of this region B can become higher than the temperature in other region.
Conventionally, before arriving the stipulated time, in battery module 3, the temperature of the middle part (the region A in Fig. 5) of close cooling air channel 4 is higher than the temperature in other region service time of battery module 3.This is to flow to region A because the 2nd depressed part 45 has hindered air.But after arriving the stipulated time, as described above, the temperature of region B can become higher than the temperature in other region service time of battery module 3.Thereby, can be according to determining the highest region of temperature the service time of battery module 3.
Thereby, can, at region A, region B set temperature transducer, before arriving the stipulated time, according to the temperature of region A, monitor the state of battery module 3 service time of battery module 3; After arriving the stipulated time, according to the temperature of region B, monitor the state of battery module 3 service time of battery module 3.Like this, just, the temperature at the position that in battery module 3, temperature is the highest can be detected all the time.In other words, can set exactly the temperature detection position of the state that can correctly monitor battery module 3.In addition, as the afore mentioned rules time, can be by experiment or simulation calculation determine.
Fig. 6 is the sectional view that the inside of the cooling air channel a in comparative example is shown.Fig. 7 is the vertical view that the mobile situation of cooling air of the inside of the cooling air channel a in comparative example and the inside of battery case b is shown.In the structure of this comparative example, the 2nd depressed part 45 in the cooling air channel 4 of present embodiment is not set, air duct difference Wei Sange branch air duct (b, c, d).While adopting the structure of this comparative example, can there is not above-mentioned air and disturb, thereby can not produce to the eddy current of the flows inside of battery case e, cannot obtain the effect that can obtain (as represented in Fig. 7 as shown in the arrow of Air Flow) of present embodiment.
To this, in the situation of the said structure of employing present embodiment, owing to thering are three depressed parts (44,45,46), as described above, all the time the temperature at the position that in battery module 3, temperature is the highest can be detected, that is, can set exactly the temperature detection position of the state that can correctly monitor battery module 3.In addition, in the situation of the structure of employing present embodiment, due to the end (region B) of dust accumulation to the long side direction of battery module 3, so the dust accretions amount of the middle body of the long side direction of battery module 3 reduces.Thereby, except determining highest temperature region according to the service time of battery, can also improve the cooling effectiveness of the middle part that temperature easily raise in the past, prevent that the local temperature of battery module 3 from raising, contribute to the temperature equalization of battery module 3 integral body.Its result, can extend battery module 3 life-span, improve the efficiency of charging and discharging.
The utility model is not subject to the restriction of above-mentioned execution mode, can carry out suitable change.
In the above-described embodiment, apply situation of the present utility model and be illustrated, but be not limited to this in the cooling construction for the battery module at automobile, the utility model is also applicable to the cooling construction of the battery module of other purposes.
Claims (3)
1. a battery cooling structure, is to battery, to carry the battery cooling structure of coolant from the export mouth of cooling air channel, it is characterized in that:
Close described export mouth place in described cooling air channel, be provided with the gas channel in described cooling air channel is separated into Si Ge branch gas channel, and described export mouth being separated into three recesses of four minutes export mouths, these three recesses respectively have makes two sidewalls reducing gradually along the flow direction of described coolant with the aisle spare of adjacent separately described branch gas channel.
2. battery cooling structure as claimed in claim 1, is characterized in that:
Described three recesses are along the direction of the center line perpendicular to described cooling air channel, separate predetermined distance and be arranged in the inside of described cooling air channel.
3. battery cooling structure as claimed in claim 2, is characterized in that:
Described three recesses are formed, and one end of described two sidewalls separately is connected in described cooling air channel, the other end extends to respectively the described export mouth place of described cooling air channel, and this export mouth is separated into described four minutes export mouths,
Be arranged in two sidewalls separately of two described recesses of both sides, the described parallel sidewalls at the center of close described cooling air channel is in the center line of described cooling air channel, described sidewall away from the center of described cooling air channel favours the center line of described cooling air channel with predetermined angular
Described two sidewalls of a described recess in the middle of being positioned at favour the center line of described cooling air channel symmetrically with predetermined angular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646314.XU CN203521556U (en) | 2013-10-18 | 2013-10-18 | Battery cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646314.XU CN203521556U (en) | 2013-10-18 | 2013-10-18 | Battery cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521556U true CN203521556U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320646314.XU Expired - Lifetime CN203521556U (en) | 2013-10-18 | 2013-10-18 | Battery cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524582A (en) * | 2017-09-19 | 2019-03-26 | 郑州宇通客车股份有限公司 | The battery case and its battery box body of built-in independent heat dissipation channel |
| CN109892995A (en) * | 2019-04-02 | 2019-06-18 | 浙江蓝炬星电器有限公司 | A kind of ventilation device and its construction method for the installation of embedded steaming and baking box |
-
2013
- 2013-10-18 CN CN201320646314.XU patent/CN203521556U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524582A (en) * | 2017-09-19 | 2019-03-26 | 郑州宇通客车股份有限公司 | The battery case and its battery box body of built-in independent heat dissipation channel |
| CN109892995A (en) * | 2019-04-02 | 2019-06-18 | 浙江蓝炬星电器有限公司 | A kind of ventilation device and its construction method for the installation of embedded steaming and baking box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |