CN208352486U - A kind of bending phase transformation heat pipe and the rectangular cell using it - Google Patents
A kind of bending phase transformation heat pipe and the rectangular cell using it Download PDFInfo
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- CN208352486U CN208352486U CN201820766125.9U CN201820766125U CN208352486U CN 208352486 U CN208352486 U CN 208352486U CN 201820766125 U CN201820766125 U CN 201820766125U CN 208352486 U CN208352486 U CN 208352486U
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- Prior art keywords
- phase transformation
- heat pipe
- condensation segment
- bending phase
- transformation heat
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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
The utility model discloses a kind of bending phase transformation heat pipes comprising sequentially connected evaporator section, isolation section and condensation segment, the evaporator section and condensation segment are connect with the pole of rectangular cell monomer and side wall respectively；The evaporator section absorbs the heat that pole generates, and is transferred to condensation segment by isolation section, heat is oriented to rectangular cell monomer bottom by the condensation segment；The invention also discloses the rectangular cells including above-mentioned bending phase transformation heat pipe；Evaporator section is fixed on the pole of battery cell by the utility model, the side wall of condensation segment and battery cell is fitted closely, evaporator section absorbs the heat that pole generates, condensation segment is transferred to by isolation section, the bottom of heat guiding rectangular cell monomer is realized at battery cell pole and the heat of bottom is average by condensation segment.
Description
Technical field
The utility model belongs to battery technical field of heat dissipation, and in particular to a kind of to be bent phase transformation heat pipe and using the rectangular of its
Battery.
Background technique
During lithium ion battery high power charging-discharging, pole and battery body can generate rapidly a large amount of heat, directly
It connects the heat accumulation for leading to battery and monomer heat is unevenly distributed problem；Thermal buildup issue inside battery cell is easy to cause
The volume expansion of battery and electrolyte inside failure, and battery cell heat distribution unevenly then drastically influences inside battery electrification
Learn the consistency of reaction.
Therefore, in order to extend the service life cycle of lithium ion battery and play the optimal performance of battery, battery list is solved
The thermal buildup issue and heat distribution problem of non-uniform in internal portion have great importance, although the existing device for battery heat dissipation
It can radiate to battery localized hyperthermia, but can not solve the problems, such as that heat is unevenly distributed.
Utility model content
The purpose of the utility model is to provide a kind of bending phase transformation heat pipe, by evaporator section, isolation section and condensation segment it
Between mutual cooperation, evaporator section absorb pole generate heat, condensation segment is transferred to by isolation section, heat is oriented to by condensation segment
Rectangular cell monomer bottom, realizes at battery cell pole and the heat of bottom is average.
The another object of the utility model is to provide a kind of rectangular cell.
The technical scheme adopted by the utility model is
A kind of bending phase transformation heat pipe comprising sequentially connected evaporator section, isolation section and condensation segment, the evaporator section and
Condensation segment is connect with the pole of rectangular cell monomer and side wall respectively；
The evaporator section absorbs the heat that pole generates, and is transferred to condensation segment by isolation section, and the condensation segment is by heat
It is oriented to rectangular cell monomer bottom.
The utility model is also characterized by
It further comprise heat conductive insulating double-sided adhesive, the condensation segment is fixed on rectangular cell list by heat conductive insulating double-sided adhesive
On the side wall of body.
The isolation section is the semi-circular structure for increasing heat transfer distances.
The evaporator section and isolation section pass through circular sliding slopes.
Capillary-porous material for fluid flow is provided in the bending phase transformation heat pipe.
A kind of rectangular cell comprising above-mentioned bending phase transformation heat pipe and battery body, the bending phase transformation heat pipe are set
There are two setting, it is located at the two sides of battery body.
The utility model is also characterized by
The evaporator section of the bending phase transformation heat pipe is welded on the pole of battery body, the condensation of the bending phase transformation heat pipe
Section is bonded with the side wall of battery body.
Two bending phase transformation heat pipes shift to install.
The condensation segment of one bending phase transformation heat pipe is arranged on battery side wall and is arranged by front surface, another
The condensation segment of the bending phase transformation heat pipe is arranged on another side wall of battery and is arranged close to rear surface.
Compared with prior art, when the utility model is used, evaporator section is fixed on the pole of battery cell, will be condensed
The side wall of section and battery cell fits closely, and evaporator section absorbs the heat that pole generates, and is transferred to condensation segment by isolation section, cold
The bottom of heat guiding rectangular cell monomer is realized at battery cell pole and the heat of bottom is average by solidifying section.
Detailed description of the invention
Fig. 1 is that the utility model embodiment 1 provides a kind of structural schematic diagram for being bent phase transformation heat pipe；
Fig. 2 is that the utility model embodiment 2 provides a kind of structural schematic diagram for being bent phase transformation heat pipe；
Fig. 3 is that the utility model embodiment 3 provides a kind of structural schematic diagram of rectangular cell；
Fig. 4 is the main view of Fig. 3；
Fig. 5 is the top view of Fig. 3；
Fig. 6 is that rectangular cell installs the Temperature Distribution cloud atlas before this bending phase transformation heat pipe additional；
Fig. 7 is that rectangular cell installs the Temperature Distribution cloud atlas after this bending phase transformation heat pipe additional.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model embodiment 1 provides a kind of bending phase transformation heat pipe, as shown in Figure 1 comprising sequentially connected evaporation
Section 1, isolation section 2 and condensation segment 3, evaporator section 1 and condensation segment 3 are connect with the pole of rectangular cell monomer and side wall respectively；
In this way, evaporator section 1 is fixed on the pole of battery cell, the side wall of condensation segment 3 and battery cell is closely pasted
It closes, evaporator section 1 absorbs the heat that pole generates, and is transferred to condensation segment 3 by isolation section 2, heat is oriented to square electric by condensation segment 3
Pond monomer bottom.
The utility model embodiment 2 provides a kind of bending phase transformation heat pipe, as shown in Figure 2 comprising sequentially connected evaporation
Section 1, isolation section 2 and condensation segment 3, evaporator section 1 and condensation segment 3 are connect with the pole of rectangular cell monomer and side wall respectively；
In this way, evaporator section 1 is fixed on the pole of battery cell, the side wall of condensation segment 3 and battery cell is closely pasted
It closes, evaporator section 1 absorbs the heat that pole generates, and is transferred to condensation segment 3 by isolation section 2, heat is oriented to square electric by condensation segment 3
Pond monomer bottom.
It further comprise heat conductive insulating double-sided adhesive 4, condensation segment 3 is fixed on rectangular cell list by heat conductive insulating double-sided adhesive 4
It on the side wall of body, is in close contact in this way, being realized by heat conductive insulating double-sided adhesive 4, ensure that bending phase transformation heat pipe and rectangular cell
Between heat transfer efficiency, be also prevented from battery occur short circuit.
Isolation section 2 is conducive to distributing for heat in this way, can increase the contact surface between air for semi-circular structure.
Capillary-porous material for fluid flow is provided in the bending phase transformation heat pipe.
In addition, in order to avoid the capillary-porous material that right-angle structure blocks bending phase transformation inside heat pipe, evaporator section 1 and heat-insulated
Section 2 keeps media flow more unimpeded by circular sliding slopes.
The utility model embodiment 3 provides a kind of rectangular cell, as in Figure 3-5 comprising the above-mentioned bending heat of transformation
Pipe 5 and battery body 6, there are two the bending settings of phase transformation heat pipe 5, is located at the two of battery body 6, in this way, passing through two
The heat of rectangular cell positive and negative terminals is averagely arrived battery bottom by bending phase transformation heat pipe 5, realizes heat dissipation and the average effect of heat.
The evaporator section 1 of bending phase transformation heat pipe 5 is welded on the pole of battery body 6, is bent the condensation segment 3 of phase transformation heat pipe 5
It is bonded with the side wall of battery body 6, in this way, evaporator section 1 is fixed on pole by welding, realizes pole heat
Quick export.
Two bending phase transformation heat pipes 5 shift to install, and the condensation segment 3 of one of bending phase transformation heat pipe 5 is arranged in battery
It is arranged on side wall and by front surface, the condensation segment 3 of another bending phase transformation heat pipe 5 is arranged on another side wall of battery
And it is arranged close to rear surface；
Because the effect for being bent phase transformation heat pipe 5 is better, and battery body when the temperature difference of evaporator section 1 and condensation segment 3 is bigger
Temperature of 6 sides close to edge is lower, therefore condensation segment is arranged by proximal edge, but improves the effect of bending phase transformation heat pipe 5
Rate, and two bending phase transformation heat pipes 5 shift to install and make battery when in use and have enough connection spaces.
The course of work: the liquid evaporation vaporization when evaporator section 1 is heated in Mao Renxin, steam pass through under small pressure difference
Isolation section 2 flows to condensation segment 3, and releases heat in condensation segment 3 and condense into liquid, and liquid is again along porous material by capillary force
Evaporator section 1 is flowed back in effect, so recycles, and heat reaches another-end by one end of bending phase transformation heat pipe 5, realizes being averaged for heat,
And reduce the heat at the higher pole of temperature, solve the problems, such as thermal accumlation in battery.
The heat dissipation of the bending phase transformation heat pipe and even temperature effect are described further below by Icepak emulation:
Simulation parameter:
1, the rectangular aluminum-shell battery of 60Ah LiFePO4, internal resistance are 0.6m Ω, and thermal coefficient is 57.25W/ (mK), than
1343.9J/kg DEG C of thermal capacitance, density 1990kg/m3；
2, the main material for being bent phase transformation heat pipe is copper, and thermal coefficient is set as 10000W/ (mK)；
3, the charge-discharge magnification of battery is set as 2C；
4, the battery entirety type of cooling is cooling for free convection.
Simulation result:
Fig. 6 is that rectangular cell installs the Temperature Distribution cloud atlas before this bending phase transformation heat pipe additional, it can be seen from the figure that battery fills
The heat generated in discharge process does not focus primarily upon position among pole and battery body, not plus the battery list of bending phase transformation heat pipe
Body maximum temperature reaches 315.4K (42.4 DEG C), and thermal buildup issue and monomer heat distribution unevenness problem are serious；
Fig. 7 is that rectangular cell installs the Temperature Distribution cloud atlas after this bending phase transformation heat pipe additional, it can be seen from the figure that plus bending
After phase transformation heat pipe, the maximum temperature of battery cell is down to 313.4K (40.4 DEG C), and monomer cooling efficiency accordingly promotes 4.7%, this
Outside, the heat at accumulation position among battery body is conducted along heat pipe direction originally, and the heat of pole is oriented to also by heat pipe
The lower battery cell bottom of temperature, so that the thermal buildup issue of battery and monomer heat distribution unevenness problem be made effectively to be solved
Certainly.
Using the above scheme, compared with prior art, when the utility model is used, evaporator section is fixed on battery cell
On pole, the side wall of condensation segment and battery cell is fitted closely, evaporator section absorbs the heat that pole generates, and is passed by isolation section
It is handed to condensation segment, condensation segment realizes the bottom of heat guiding rectangular cell monomer at battery cell pole and the heat of bottom
It is average.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
It is subject to the protection scope in claims.
Claims (9)
1. a kind of bending phase transformation heat pipe, which is characterized in that it includes sequentially connected evaporator section, isolation section and condensation segment, institute
Evaporator section and condensation segment is stated to connect with the pole of rectangular cell monomer and side wall respectively；
The evaporator section absorbs the heat that pole generates, and is transferred to condensation segment by isolation section, heat is oriented to by the condensation segment
Rectangular cell monomer bottom.
2. a kind of bending phase transformation heat pipe according to claim 1, which is characterized in that further comprise that heat conductive insulating is two-sided
Glue, the condensation segment are fixed on the side wall of rectangular cell monomer by heat conductive insulating double-sided adhesive.
3. a kind of bending phase transformation heat pipe according to claim 2, which is characterized in that the isolation section is to conduct heat for increasing
The semi-circular structure of distance.
4. a kind of bending phase transformation heat pipe according to claim 1-3, which is characterized in that the evaporator section and heat-insulated
Section passes through circular sliding slopes.
5. a kind of bending phase transformation heat pipe according to claim 4, which is characterized in that setting is useful in the bending phase transformation heat pipe
In the capillary-porous material of liquid flowing.
6. a kind of rectangular cell, which is characterized in that it includes the described in any item bending phase transformation heat pipes of claim 1-5 and electricity
Pond ontology, the bending phase transformation heat pipe are provided with two, are located at the two sides of battery body.
7. a kind of rectangular cell according to claim 6, which is characterized in that the evaporator section welding of the bending phase transformation heat pipe
On the pole of battery body, the condensation segment of the bending phase transformation heat pipe is bonded with the side wall of battery body.
8. a kind of rectangular cell according to claim 7, which is characterized in that two bending phase transformation heat pipe dislocation are set
It sets.
9. a kind of rectangular cell according to claim 8, which is characterized in that the condensation segment of a bending phase transformation heat pipe
It is arranged on battery side wall and is arranged by front surface, the condensation segment setting of another bending phase transformation heat pipe is another in battery
It is arranged on an outer side wall and close to rear surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766125.9U CN208352486U (en) | 2018-05-22 | 2018-05-22 | A kind of bending phase transformation heat pipe and the rectangular cell using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766125.9U CN208352486U (en) | 2018-05-22 | 2018-05-22 | A kind of bending phase transformation heat pipe and the rectangular cell using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352486U true CN208352486U (en) | 2019-01-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820766125.9U Active CN208352486U (en) | 2018-05-22 | 2018-05-22 | A kind of bending phase transformation heat pipe and the rectangular cell using it |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518307A (en) * | 2018-05-22 | 2019-11-29 | 银隆新能源股份有限公司 | It is bent phase transformation heat pipe and the rectangular cell using it |
| WO2022237806A1 (en) * | 2021-05-14 | 2022-11-17 | 陕西奥林波斯电力能源有限责任公司 | Pole structure and large capacity battery |
-
2018
- 2018-05-22 CN CN201820766125.9U patent/CN208352486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518307A (en) * | 2018-05-22 | 2019-11-29 | 银隆新能源股份有限公司 | It is bent phase transformation heat pipe and the rectangular cell using it |
| WO2022237806A1 (en) * | 2021-05-14 | 2022-11-17 | 陕西奥林波斯电力能源有限责任公司 | Pole structure and large capacity battery |
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