CN207233915U - A kind of Battery case structure of water-cooling - Google Patents
A kind of Battery case structure of water-cooling Download PDFInfo
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- CN207233915U CN207233915U CN201721287736.7U CN201721287736U CN207233915U CN 207233915 U CN207233915 U CN 207233915U CN 201721287736 U CN201721287736 U CN 201721287736U CN 207233915 U CN207233915 U CN 207233915U
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- battery case
- air
- water
- bottom plate
- battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
It the utility model is related to vehicle technology field.Purpose is to provide a kind of Battery case structure of the water-cooling of good heat dissipation effect.Technical solution is used by the utility model：A kind of Battery case structure of water-cooling, including battery case and the battery modules being arranged in battery case, the inner surface of the battery case bottom plate sets some heat exchange pipelines, sandwiched insulating layer between the heat exchange pipeline and battery modules, air-cooled passage is set on the bottom plate, and the air-cooled passage extends along the anteroposterior direction of car body.The utility model can greatly improve the heat dissipation performance of power battery of electric vehicle module, ensure the normal use of lithium ion battery.
Description
Technical field
It the utility model is related to vehicle technology field, and in particular to a kind of Battery case structure of water-cooling.
Background technology
Lithium ion battery is in low temperature environment in use, two fatal weakness occur in lithium battery.First, lithium battery holds
Amount can be decreased obviously.For example when operating ambient temperature is 0 DEG C, the capacity of lithium battery can reduce by 20% than room temperature (25 DEG C)
Left and right.Secondly, low temperature environment makes the charge and discharge process of lithium battery to become abnormal slow, therefore the discharge and recharge time extends several times,
Even more than ten times.In order to enable lithium ion battery can work normally, one layer would generally be set on battery case in the prior art
On the one hand insulating layer, insulating layer play the role of insulation, avoid battery temperature too low.
Another aspect lithium ion battery reaches some critical point in inside battery reaction rate, and inside battery reaction produces
Heat exceedes the heat that can be distributed so as to cause the heat that speeds and produce of inside battery reaction rate to increase, battery hair
Heat is out of control.In thermal runaway, amount of heat is quickly released, and whole battery cell temperature is increased to 900 DEG C of even more highs.
If batteries of electric automobile group cannot get timely ventilation and heat at high temperature, it will cause battery pack system temperature excessive or temperature
Skewness, most reduces battery charging and discharging cycle efficieny at last, and the power and energy for influencing battery play, and will also be led when serious
Pyrogenicity is out of control, influences the safety and reliability of battery.For this reason, version heat-insulating material also will can play the role of heat conduction, in battery
Heat can be dissipated again when temperature is excessive.
Mainly there are two kinds of approach to solve lithium ion battery heat dissipation problem at present：One kind is by forced air cooling mode, separately
Outer one kind is to pass through water-cooling pattern.The mode of forced air cooling is relatively low due to air heat conductivility itself, radiating efficiency.And traditional water
Cold mode, since lithium ion battery cell and water cooled pipeline contact area are smaller, its heat dissipation performance is still not ideal enough.
The content of the invention
The purpose of this utility model is to provide a kind of Battery case structure of the water-cooling of good heat dissipation effect.
For achieving the above object, technical solution is used by the utility model：A kind of battery case of water-cooling
Body structure, including battery case and the battery modules being arranged in battery case, the inner surface setting of the battery case bottom plate is some to change
Hot channel, sandwiched insulating layer between the heat exchange pipeline and battery modules, air-cooled passage is set on the bottom plate, described air-cooled logical
Road extends along the anteroposterior direction of car body.
Preferably, the heat exchange pipeline is flat pipeline, the upper and lower surface of heat exchange pipeline for be close to insulating layer and
The plane of bottom plate.
Preferably, the front end of the air-cooled passage is additionally provided with air-out direction towards the air blower of air-cooled passage.
Preferably, the air-cooled passage is made of more straight troughs for being arranged on plate outer surface.
Preferably, the air-cooled passage is made of more S-shaped grooves for being arranged on plate outer surface, and S-shaped front of the slot is in loudspeaker
Shape.
Preferably, heat conductive silica gel is filled in the gap between the heat exchange pipeline.
Preferably, the lower section of the bottom plate sets atomizer, and the atomizer is towards air-cooled passage.
Preferably, the heat exchange pipeline is welded with bottom plate.
The beneficial effects of the utility model embody a concentrated reflection of：The heat dissipation of power battery of electric vehicle module can greatly be improved
Performance, ensures the normal use of lithium ion battery.Specifically, the utility model in use, radiates mainly by two sides
Face is formed, first, the water or other heat-conducting mediums in heat exchange pipeline have high thermal conductivity, will quickly can be dissipated by insulating layer
The heat sent is taken away, second, air flows fast through the outer surface of bottom plate in driving conditions, air-cooled passage can strengthen convection current
Effect, so as to quickly be cooled down to heat-conducting medium and battery case.The air blower being preferably provided with can be in vehicle stationary state
When, forced-air convection, it is ensured that the battery modules of the utility model are respectively provided with reliable under driving states and under inactive state
Heat dissipation performance.The utility model is organically combined air-cooled with water cooling, is combined into one, greatly enhances the effect of heat dissipation.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the bottom view of Fig. 1；
Fig. 3 is a kind of preferred embodiment schematic diagram of structure shown in Fig. 2.
Embodiment
A kind of Battery case structure of water-cooling with reference to shown in Fig. 1-3, including battery case and be arranged in battery case
Battery modules 1, the battery case generally includes upper cover, side plate and bottom plate 2.If the inner surface of the battery case bottom plate 2 is set
Dry heat exchange pipeline 3, the usual heat exchange pipeline 3 are welded with bottom plate 2, with ensure the effect of its fixation and its between bottom plate 2
Heat-conductive characteristic.Sandwiched insulating layer 4 between the heat exchange pipeline 3 and battery modules 1.Heat exchange pipeline 3 be used for directly with insulation
Layer 4 carries out heat exchanges, the form of 3 generally use coil pipe of heat exchange pipeline, naturally it is also possible to different using be laid side by side more
Pipeline, heat exchange pipeline 3 are usually made of copper, aluminium, aluminium alloy etc..The section of the heat exchange pipeline 3 can be circular, ellipse
Deng, but in order to improve the stability of installation, the contact area of increase heat exchange pipeline 3 and insulating layer 4 and bottom plate 2, more preferable way
It is that heat exchange pipeline 3 is flat pipeline, the upper and lower surface of heat exchange pipeline 3 is to be close to the plane of insulating layer 4 and bottom plate 2.
The insulating layer 4 had both played the insulation effect to battery modules 1, avoided the temperature at low ambient temperatures of battery modules 1
It is too low, while also there is heat conduction, when 1 temperature of battery modules is excessive, quickly unnecessary heat can be dissipated.Protect
Warm layer 4 is usually made of flexible material of the thermal conductivity factor less than 1W/mk, possesses certain decrement, when assembling completion, protects
Warm layer 4 is close to heat exchange pipeline 3 and is compressed.Air-cooled passage 5, anteroposterior direction of the air-cooled passage 5 along car body are set on the bottom plate 2
Extension.That is the front end of cold air duct 5 is to exist close to the outlet side of the tailstock, vehicle for the inlet end by near-car head, rear end
In traveling process, air can be effectively entered in air-cooled passage 5, so as to improve the effect of convection current.
In use, heat dissipation is mainly made of the utility model two aspects, when water in heat exchange pipeline 3 or other
Heat-conducting medium has high thermal conductivity, quickly can take away the heat given out by insulating layer 4, second, driving conditions are hollow
Gas flows fast through the outer surface of bottom plate 2, and air-cooled passage 5 can strengthen the effect of convection current, thus to heat-conducting medium and battery case into
Row quickly cooling.The utility model is organically combined air-cooled with water cooling, is combined into one, greatly enhances the effect of heat dissipation.
When vehicle parking, charge when inactive state when, the convection current of air-cooled passage 5 weakens, substantially negligible, at this time in order to ensure
The heat dissipation performance of battery modules 1, as shown in Fig. 2, preferably way is that the front end of the air-cooled passage 5 is additionally provided with air-out direction
Towards the air blower 6 of air-cooled passage 5.Air blower 6 can be in vehicle stationary state, forced-air convection, it is ensured that this practicality
New battery modules 1 under driving states and are respectively provided with reliable heat dissipation performance under inactive state.
The concrete form of the air-cooled passage 5 of the utility model is more, such as：As shown in Fig. 2, air-cooled passage 5 can be by setting
The more straight troughs composition in 2 outer surface of bottom plate is put, the structure is relatively simple.As shown in figure 3, shown air-cooled passage page 5 can be by
More S-shaped grooves for being arranged on 2 outer surface of bottom plate are formed, and S-shaped front of the slot is in horn-like.S-shaped groove causes air and 2 detour of bottom plate
Contact, improves the performance of heat dissipation, while horn-like front end can also increase intake, strengthen the effect of heat dissipation.In this base
On plinth, the utility model can also set atomizer 8 in the lower section of the bottom plate 2, and the atomizer 8 is towards air-cooled passage
5.When the load that radiates is larger, appropriate water mist, under the action of high-speed flow, water mist are sprayed to bottom plate 2 using atomizer 8
Quickly evaporation, takes away substantial amounts of heat.Furthermore it is also possible to heat conductive silica gel 7 is filled in gap between the heat exchange pipeline 3.
Heat conductive silica gel can lift the contact area of insulating layer 4 and bottom plate 2, reduce the air capacity between insulating layer 4 and bottom plate 2, play
Function served as bridge, promotes direct heat conduction velocity between insulating layer 4 and bottom plate 2.
Claims (8)
1. a kind of Battery case structure of water-cooling, including battery case and the battery modules (1) being arranged in battery case, it is special
Sign is：The inner surface of the battery case bottom plate (2) sets some heat exchange pipelines (3), the heat exchange pipeline (3) and battery modules
(1) sandwiched insulating layer (4) between, set air-cooled passage (5) on the bottom plate (2), and the air-cooled passage (5) is along before and after car body
Direction extends.
2. the Battery case structure of water-cooling according to claim 1, it is characterised in that：The heat exchange pipeline (3) is
Flat pipeline, the upper and lower surface of heat exchange pipeline (3) are to be close to the plane of insulating layer (4) and bottom plate (2).
3. the Battery case structure of water-cooling according to claim 2, it is characterised in that：The air-cooled passage (5)
Front end is additionally provided with air blower (6) of the air-out direction towards air-cooled passage (5).
4. the Battery case structure of water-cooling according to claim 3, it is characterised in that：The air-cooled passage (5) by
More straight troughs for being arranged on bottom plate (2) outer surface are formed.
5. the Battery case structure of water-cooling according to claim 3, it is characterised in that：The air-cooled passage (5) by
More S-shaped grooves for being arranged on bottom plate (2) outer surface are formed, and S-shaped front of the slot is in horn-like.
6. the Battery case structure of water-cooling according to claim 3, it is characterised in that：The heat exchange pipeline (3) it
Between gap in fill heat conductive silica gel (7).
7. the Battery case structure of water-cooling according to claim 6, it is characterised in that：The lower section of the bottom plate (2)
Atomizer (8) is set, and the atomizer (8) is towards air-cooled passage (5).
8. the Battery case structure of water-cooling according to claim 1, it is characterised in that：The heat exchange pipeline (3) with
Bottom plate (2) welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287736.7U CN207233915U (en) | 2017-09-29 | 2017-09-29 | A kind of Battery case structure of water-cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287736.7U CN207233915U (en) | 2017-09-29 | 2017-09-29 | A kind of Battery case structure of water-cooling |
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| Publication Number | Publication Date |
|---|---|
| CN207233915U true CN207233915U (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721287736.7U Active CN207233915U (en) | 2017-09-29 | 2017-09-29 | A kind of Battery case structure of water-cooling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244594A (en) * | 2018-10-17 | 2019-01-18 | 浙江大学 | A kind of power battery thermal management system and power battery thermal management method |
| CN109301389A (en) * | 2018-10-17 | 2019-02-01 | 徐州振丰原喷灌设备有限公司 | A kind of radiator for new-energy automobile |
| CN111430603A (en) * | 2019-01-09 | 2020-07-17 | 比亚迪股份有限公司 | Battery pack without module frame, vehicle and energy storage device |
| CN112803093A (en) * | 2021-01-06 | 2021-05-14 | 武汉理工大学 | Power battery tray and manufacturing method thereof |
-
2017
- 2017-09-29 CN CN201721287736.7U patent/CN207233915U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244594A (en) * | 2018-10-17 | 2019-01-18 | 浙江大学 | A kind of power battery thermal management system and power battery thermal management method |
| CN109301389A (en) * | 2018-10-17 | 2019-02-01 | 徐州振丰原喷灌设备有限公司 | A kind of radiator for new-energy automobile |
| CN111430603A (en) * | 2019-01-09 | 2020-07-17 | 比亚迪股份有限公司 | Battery pack without module frame, vehicle and energy storage device |
| US11955651B2 (en) | 2019-01-09 | 2024-04-09 | Byd Company Limited | Power battery pack and electric vehicle |
| CN112803093A (en) * | 2021-01-06 | 2021-05-14 | 武汉理工大学 | Power battery tray and manufacturing method thereof |
| CN112803093B (en) * | 2021-01-06 | 2021-11-12 | 武汉理工大学 | Power battery tray and manufacturing method thereof |
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