CN209016129U - Power battery samming shell and power battery - Google Patents
Power battery samming shell and power battery Download PDFInfo
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- CN209016129U CN209016129U CN201821787402.0U CN201821787402U CN209016129U CN 209016129 U CN209016129 U CN 209016129U CN 201821787402 U CN201821787402 U CN 201821787402U CN 209016129 U CN209016129 U CN 209016129U
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- power battery
- shell
- heat
- samming
- inner casing
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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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Abstract
The utility model provides a kind of power battery samming shell and power battery, wherein, power battery samming shell is applied on power battery, the power battery includes the power battery samming shell and power battery ontology, the power battery samming shell is covered on the power battery ontology, it is characterised by comprising: inner casing, shell and heat-transfer device；The inner casing is arranged close to the power battery ontology；The heat-transfer device is set between the inner casing and the shell；The heat-transfer device includes heat-conductive assembly and thermal conducting agent, and the heat-conductive assembly and the thermal conducting agent are arranged between the inner casing and the shell.The utility model has the beneficial effects that inside and outside heat absorption net and thermal conducting agent are arranged in shell, form hot microcirculqtory system, the temperature of the comprehensive regulating cell of hot microcirculqtory system energy, keep constant internal temperature of battery, to achieve the purpose that timely, efficient samming, and addition thermal conducting agent is not needed, it is inconvenient caused by avoiding because of charging.
Description
Technical field
The utility model relates to power battery fields, and in particular to a kind of power battery samming shell and power battery.
Background technique
In recent years, as degree of the motor vehicle exhaust emission to atmosphere pollution increasingly aggravates, develop new-energy automobile as drop
The effective way of low vehicle emission pollution has caused extensive attention, and has obtained actual application.Power battery is as new
The main power source of energy automobile, it has also become one of critical component of electric car, power battery can be put in charge and discharge process
A large amount of heat out, since square power battery size is larger, the limitation and heat distribution problem of self structure can make power
It is more acute that battery temperature is unevenly distributed problem.On the one hand temperature of powered cell nonunf ormity will affect charge and discharge electrical property
Can, lead to deterioration of cell properties, on the other hand temperature of powered cell nonunf ormity can reduce battery efficiency, cause
The battery pack service life is short.
Utility model content
The main purpose of the utility model is to provide a kind of power battery samming shell and power battery, is solved because of power
Battery increase causes temperature of powered cell to be unevenly distributed the problem of bringing.
To solve the above-mentioned problems, the utility model proposes a kind of power battery samming shells, are applied on power battery,
The power battery includes the power battery samming shell and power battery ontology, and the power battery samming shell is covered in
On the power battery ontology, comprising: inner casing, shell and heat-transfer device；
The inner casing is arranged close to the power battery ontology；
The heat-transfer device is set between the inner casing and the shell；
The heat-transfer device includes heat-conductive assembly and thermal conducting agent, and the inner casing is arranged in the heat-conductive assembly and the thermal conducting agent
Between the shell.
Further, the heat-conductive assembly includes outer heat absorption net and interior suction heat supply network, and the outer heat absorption net is far from the inner casing
Setting, the interior suction heat supply network are arranged close to the inner casing.
Further, the heat-transfer device further includes support device, and the support device is set to the inner casing and described
Between shell, the support device is for fixing the outer heat absorption net and interior suction heat supply network.
Further, the outer heat absorption net and the interior suction heat supply network are equipped with multiple mesh, and the mesh is for being condensed back to
Flow the thermal conducting agent.
Further, the outer heat absorption net and the interior suction heat supply network are multilayer heat absorption net.
Further, it is outer heat absorption net mesh be greater than interior suction heat supply network mesh, it is described it is outer heat absorption net and interior suction heat supply network it is more
The mesh size of layer heat absorption net is sequentially increased along close to inner casing to the direction far from inner casing.
Further, the size of the mesh of the outer heat absorption net is 100 μm~300 μm, the mesh of the interior suction heat supply network
Size is 30 μm~100 μm.
Further, the material of the shell and the inner casing is aluminium.
Further, the power battery samming shell with a thickness of 1.5mm~3mm, the shell with a thickness of 0.4mm
~0.6mm, the inner casing with a thickness of 0.6mm~1.5mm.
The utility model also proposed a kind of power battery, and the power battery samming shell including above structure is made.
The utility model has the beneficial effects that inside and outside heat absorption net and thermal conducting agent are arranged in shell, hot microcirculqtory system is formed,
The temperature of the comprehensive regulating cell of hot microcirculqtory system energy, keeps constant internal temperature of battery, to reach timely, efficient samming
Purpose, and do not need addition thermal conducting agent, it is inconvenient caused by avoiding because of charging.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the power battery samming shell of an embodiment of the present invention；
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (up, down, left, right, before and after etc.) of institute is only in the utility model embodiment
For explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if
When the particular pose changes, then directionality instruction also correspondingly changes correspondingly, and the connection, which can be, to be directly connected to,
It is also possible to be indirectly connected with.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment
Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution
It will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not in the utility model
It is required that protection scope within.
As shown in Figure 1, a kind of power battery samming shell, is applied on power battery, power battery includes power battery
Samming shell and power battery ontology, power battery samming shell are covered on power battery ontology, comprising: inner casing 2, shell 1
And heat-transfer device；Inner casing 2 is arranged close to power battery ontology；Heat-transfer device is set between inner casing 2 and shell 1；Heat-transfer device
Including heat-conductive assembly and thermal conducting agent, between heat-conductive assembly and thermal conducting agent setting inner casing 2 and shell 1.
In the present embodiment, by the way that heat-conductive assembly and thermal conducting agent are arranged in shell, hot microcirculqtory system, hot microcirculation are formed
The temperature of the comprehensive regulating cell of system energy absorbs heat by thermal conducting agent, heat can lead to when power battery local heating
It crosses thermal conducting agent and heat-conductive assembly is diffused, after thermal conducting agent is by thermal evaporation, can be condensed back on heat-conductive assembly, by heat
Other positions are dispersed to, the function of heated samming is realized, keeps constant internal temperature of battery, to reach timely, efficient samming
Purpose.
In the present embodiment, heat-conductive assembly includes outer heat absorption net 4 and interior suction heat supply network 5, and outer heat absorption net 4 is set far from the inner casing
It sets, interior suction heat supply network 5 is arranged close to the inner casing.
In the present embodiment, by the way that outer heat absorption net 4 and interior suction heat supply network 5 is arranged, can preferably it be absorbed back in order to heat-conductive assembly
Conductance thermit powder specifically when thermal conducting agent evaporation, condenses on the net 5 that can first absorb heat inside, if evaporation is more, can rise
Secondary condensation is carried out to outer heat absorption net 4, further, it is also possible to avoid because one layer of thick heat absorption net is only arranged, and works as power battery
Part is when distributing heat, local thermal conducting agent evaporation, cause thermal conducting agent steam circulating direction can only by mesh, and mesh it
Between be not intercommunication, heat can only be transmitted by the material for the net ontology that absorbs heat, and the heat that thermal conducting agent steam carries is also only
It can flow back in partial condensation, most heat is absorbed by the heat absorption net of part, cannot achieve the equilibrium of heat, so setting two
Layer, thermal conducting agent steam can be expanded after through interior suction heat supply network 5 by the gap between interior suction heat supply network 5 and outer heat absorption net 4
It dissipates, the area that outer heat absorption net 4 can be condensed back thermal conducting agent is just wider, is heated just more evenly, so two layers of setting can make heat
The wider of branch is measured, more evenly.
In the present embodiment, heat-transfer device further includes support device 3, and support device 3 is set between inner casing 2 and shell 1, branch
Support arrangement 3 is for fixed outer heat absorption net 4 and interior suction heat supply network 5.
In the present embodiment, outer heat absorption net 4 and interior suction heat supply network 5 are separated by support device 3, thermal conducting agent steam is by interior
It absorbs heat after net 5, can be diffused by the gap between interior suction heat supply network 5 and outer heat absorption net 4, outer heat absorption net 4 can condense
The area of reflux thermal conducting agent is just wider, and to complete the more preferably dispersion to amount of localized heat, the structure of support device 3 can be metal
Cylindrical structure, metal polyporous material, serpentine configuration, support device can be aluminium, copper, iron, the Heat Conduction Materials such as alloy, it is preferable that
It is in one embodiment serpentine configuration, Heat Conduction Material is copper, using the large specific surface area of serpentine configuration, is conducive to heat transfer and prevents
Only structural collapse, and the thermal coefficient of copper is high, is not easy deformation, is a kind of preferred material in the present embodiment.
In the present embodiment, outer heat absorption net 4 and interior suction heat supply network 5 are equipped with multiple mesh, and mesh is for being condensed back thermal conducting agent.
It, can returning in order to thermal conducting agent by absorbing heat net 4 outside and multiple mesh are arranged in interior suction heat supply network 5 in the present embodiment
Stream can also increase the velocity of liquid assets that thermal conducting agent is absorbed heat outside between net 4 and interior suction heat supply network 5, accelerate thermal conducting agent and outer heat absorption net 4
With the contact of interior suction heat supply network 5, convenient for heat dissipation, also the thermally conductive of heat can be had convenient for part so that thermal conducting agent flows back faster
The diffusion of agent steam, so that entire temperature of powered cell is more balanced.
In the present embodiment, outer heat absorption net 4 and interior suction heat supply network 5 are multilayer heat absorption net.
In the present embodiment, outer heat absorption net 4 and interior suction heat supply network 5 are multilayer heat absorption net, and multilayer heat absorption net can increase thermal conducting agent
It, can also be cold convenient for the diffusion of the thermal conducting agent steam with heat of part with the contact area of outer heat absorption net 4 and interior suction heat supply network 5
Thermal conducting agent after solidifying acts on reflux rapidly by capillary force, so that entire temperature of powered cell is more balanced.
In the present embodiment, the mesh of outer heat absorption net 4 is greater than the mesh of interior suction heat supply network 5, outer heat absorption net 4 and interior suction heat supply network 5
The mesh size of multilayer heat absorption net is sequentially increased along close to inner casing to the direction far from inner casing.
In the present embodiment, the mesh by the way that outer heat absorption net 4 is arranged is greater than the mesh of interior suction heat supply network 5, outer heat absorption net 4 and interior suction
The mesh size of the multilayer heat absorption net of heat supply network 5 is sequentially increased along close to inner casing to the direction far from inner casing, can be in order to condensation
Thermal conducting agent quick backflow, and the temperature of the more unevaporated thermal conducting agent of temperature of the thermal conducting agent to flow back is low, so thermal conducting agent
Quick backflow can reduce the temperature for not evaporating thermal conducting agent, can also increase to evaporate the quantity of thermal conducting agent, evaporate convenient for next time,
It can also make the condensation thermal conducting agent quick backflow on outer heat absorption net 4 and interior suction heat supply network 5, increase new evaporation thermal conducting agent and multilayer and inhale
The contact area of heat supply network.
In the present embodiment, the size of the mesh of outer heat absorption net 4 is 100 μm~300 μm, the size of the mesh of interior suction heat supply network 5
It is 30 μm~100 μm.
In the present embodiment, if the aperture of heat absorption net 4 and interior suction heat supply network 5 is too big outside, can reduce thermal conducting agent and outer heat absorption net 4 and
The contact area of interior suction heat supply network 5 is unfavorable for the reflux of thermal conducting agent and the heat dissipation of power battery, if heat absorption net 4 and interior suction heat supply network 5 outside
Aperture it is too small, then the thermal conducting agent being condensed back can block outer heat absorption net 4 and the mesh of interior suction heat supply network 5, be unfavorable for thermal conducting agent
Reflux and power battery heat dissipation, be 100 μm~300 μm it is advantageous to the size of mesh for outer heat absorption net 4, interior suction heat supply network
The size of 5 mesh is 30 μm~100 μm.
In the present embodiment, the material of shell 1 and inner casing 2 is aluminium.
In the present embodiment, the material of shell 1 and inner casing 2 is aluminium, aluminum material be also a kind of preferable material of heating conduction,
In addition, aluminum material can react with air generates aluminium oxide, aluminium oxide is not easy to react with air and other media,
It can be very good to protect the material of enclosure interior not weather and react.
In the present embodiment, samming shell with a thickness of 1.5mm~3mm, shell 1 with a thickness of 0.4mm~0.6mm, inner casing
2 with a thickness of 0.6mm~1.5mm.
In the present embodiment, if the thickness of samming shell is excessive, manufacturing cost will increase, it is excessively thin, the mark of heat dissipation is not achieved
Standard, it is advantageous to be samming shell with a thickness of 1.5mm~3mm, in addition, the thickness of inner casing 2 should be greater than the thickness of shell 1, because
Heat dissipation is easily facilitated for thicker metallic walls, in order to keep the heat of power battery ontology more uniform, the preferably thickness of shell 1
Degree be 0.4mm~0.6mm, inner casing 2 with a thickness of 0.6mm~1.5mm.
In the present embodiment, thermal conducting agent can be water, methanol, and ethyl alcohol etc. is easy to the solvent for volatilizing and condensing, it is preferable that thermally conductive
Agent is water, and thermal conducting agent water, one side material source is extensive, cheaply, on the other hand, does thermal conducting agent environmental protection with water, pollution-free, is
A kind of ideal green material.
In the present embodiment, it can will be moved by thermal conducting agent conduction, evaporation, the hot microcirculation of four step compositions of convection current and condensation
The temperature difference at each position of power battery controls within the scope of 5 DEG C, which is -40 DEG C~80 DEG C,
Warm shell is directly contacted with heat source, can increase the contact area with heat source to greatest extent, is in time, efficiently that power battery is equal
Temperature.
The utility model also proposed a kind of power battery, and the power battery samming shell including above structure is made, tool
Body, a kind of power battery, including battery case, it is contained in the intracorporal naked battery core of battery case, is poured into the intracorporal electricity of battery case
Liquid is solved, and is seal-installed on housing of power cell and is equipped with the power battery samming shell of conductive component.
It is carried out above-mentioned using the power battery of the power battery of power battery samming shell in the application and common shell
Contrasting detection, testing result are as follows:
Upper table is the 1C discharge capacity ratio using samming shell and common shell power battery, it can be seen that uses samming
Shell battery core has superior discharge performance in the high and low temperature test.
Upper table is the cycle-index using samming shell and 90% capacity retention ratio of common shell power battery, in capacity
When conservation rate reaches 90%, there are more cycle-indexes in 25 DEG C and 45 DEG C circulations using the battery core of samming shell.
Upper table is the temperature of each position when being discharged using the 2C of samming shell and common shell power battery, can be with by upper table
Find out, when power battery is with 2C multiplying power discharging, each position temperature difference of samming shell will be much smaller than common shell.
The utility model has the beneficial effects that inside and outside heat absorption net 4 and thermal conducting agent are arranged in shell, hot microcirculation system is formed
System, the temperature of the comprehensive regulating cell of hot microcirculqtory system energy, keeps constant internal temperature of battery, to reach timely, efficient
The purpose of samming, and addition thermal conducting agent is not needed, it is inconvenient caused by avoiding because of charging.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of the claims of the utility model.
Claims (10)
1. a kind of power battery samming shell is applied on power battery, the power battery includes the power battery samming
Shell and power battery ontology, the power battery samming shell are covered on the power battery ontology, which is characterized in that packet
It includes: inner casing, shell and heat-transfer device；
The inner casing is arranged close to the power battery ontology；
The heat-transfer device is set between the inner casing and the shell；
The heat-transfer device includes heat-conductive assembly and thermal conducting agent, and the inner casing and institute is arranged in the heat-conductive assembly and the thermal conducting agent
It states between shell.
2. power battery samming shell as described in claim 1, which is characterized in that the heat-conductive assembly include outer heat absorption net and
Interior suction heat supply network, the outer heat absorption net are arranged far from the inner casing, and the interior suction heat supply network is arranged close to the inner casing.
3. power battery samming shell as claimed in claim 2, which is characterized in that the heat-transfer device further includes support dress
It sets, the support device is set between the inner casing and the shell, and the support device is for fixing the outer heat absorption net
With interior suction heat supply network.
4. power battery samming shell as claimed in claim 2, which is characterized in that the outer heat absorption net and the interior suction heat supply network
Multiple mesh are equipped with, the mesh is for being condensed back the thermal conducting agent.
5. power battery samming shell as claimed in claim 2, which is characterized in that the outer heat absorption net and the interior suction heat supply network
For multilayer heat absorption net.
6. power battery samming shell as claimed in claim 5, which is characterized in that the mesh of outer heat absorption net is greater than interior suction heat supply network
Mesh, the mesh size of the multilayer heat absorption net of the outer heat absorption net and interior suction heat supply network is along close to inner casing to the direction of separate inner casing
It is sequentially increased.
7. power battery samming shell as claimed in claim 6, which is characterized in that the size of mesh of the outer heat absorption net is
100 μm~300 μm, the size of the mesh of the interior suction heat supply network is 30 μm~100 μm.
8. power battery samming shell as described in claim 1, which is characterized in that the material of the shell and the inner casing is
Aluminium.
9. power battery samming shell as described in claim 1, which is characterized in that the thickness of the power battery samming shell
For 1.5mm~3mm, the shell with a thickness of 0.4mm~0.6mm, the inner casing with a thickness of 0.6mm~1.5mm.
10. a kind of power battery, which is characterized in that including power battery samming according to claim 1 to 9
Shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821787402.0U CN209016129U (en) | 2018-10-31 | 2018-10-31 | Power battery samming shell and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821787402.0U CN209016129U (en) | 2018-10-31 | 2018-10-31 | Power battery samming shell and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209016129U true CN209016129U (en) | 2019-06-21 |
Family
ID=66841024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821787402.0U Active CN209016129U (en) | 2018-10-31 | 2018-10-31 | Power battery samming shell and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209016129U (en) |
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2018
- 2018-10-31 CN CN201821787402.0U patent/CN209016129U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230628 Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. Address before: 518000, 1st floor, 2nd floor, A-B area, 2nd floor, D area-9th floor, Yihe Road, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |