CN208507890U - A kind of novel thermal control structure battery core - Google Patents
A kind of novel thermal control structure battery core Download PDFInfo
- Publication number
- CN208507890U CN208507890U CN201821272217.8U CN201821272217U CN208507890U CN 208507890 U CN208507890 U CN 208507890U CN 201821272217 U CN201821272217 U CN 201821272217U CN 208507890 U CN208507890 U CN 208507890U
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- Prior art keywords
- sheath body
- liquid cooling
- cooling sheath
- liquid
- battery core
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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 relates to a kind of novel thermal control structure battery cores, including battery core core, first liquid cooling sheath body and the second liquid cooling sheath body, the first liquid cooling sheath body passes through extruding, the mode of die sinking is closely arranged battery core core, the inner wall surrounding of the second liquid cooling sheath body is equipped with several ribs at equal intervals, the second liquid-cooled jacket valve jacket sets the first liquid cooling sheath body, it is sealed by sealing ring at upper end and lower end port between the second liquid cooling sheath body and the first liquid cooling sheath body, its one liquid storage chamber of internal formation, filling heat absorption phase-transition liquid in the liquid storage chamber, the sealing ring is equipped with round pressure valve；The utility model has the following beneficial effects: fever when by control single battery core electric discharge, can effectively prevent after battery group because between single battery core internal temperature it is uneven caused by thermal expansion, thermal runaway generation, electrical security is more preferable, and economic benefit is more significant.
Description
Technical field
The utility model relates to lithium ion battery thermal controls to manage technical field, in particular to a kind of novel thermal control knot
Structure battery core.
Background technique
Single battery core includes the steel shell of battery core core, nut cap and battery core core outer layers, and power battery is in use, is needed
It just can guarantee its normal use at suitable temperature.At present after battery group, generate heat when having high rate charge-discharge serious, interior
The problems such as temperature distribution is non-uniform in portion, causes the safety accidents such as thermal runaway, jeopardizes rider's life security when serious.
When battery core temperature is increased to 70 DEG C to 100 DEG C or so, thermal runaway will take place, on fire, explosion etc. occur
Phenomenon.The thermal runaway of single battery core can expand to its periphery battery core again, cause chain reaction, cause bigger execution；For
It improves the working performance of battery and service life and prevents battery from thermal runaway occurs, it is necessary to which the operating temperature for controlling battery exists
Within normal temperature range.
Heat management common at present mostly uses greatly air-cooled or liquid cooling two ways, air-cooled to be often difficult to solve temperature uniformity
The problems such as being promoted with area, therefore liquid cooling mode is more used in actual application.Liquid cooling is mainly by battery mould
Arrange liquid cooling plate in group, runner be set in liquid cooling plate, coolant liquid in runner by way of circulation, heat that battery core is generated
It takes away.
Due to its special circular configuration, liquid cooling plate often can not be contacted effectively with it cylindrical battery core, to lead
The heat that battery core generates out, generally requires sheet or the progress of tubulose winding arrangement is thermally conductive；Meanwhile it is thermally conductive using silica gel or metal class
Structure, will lead to that system structure component is more, and structure is complicated；Process operability is poor；The temperature difference is big between battery cell.
Utility model content
Purpose of the utility model is to solve above-mentioned existing defect, provide that a kind of structure is simple, can prevent list
Body battery core thermal runaway, the novel thermal control structure battery core for effectively improving electrical safety.
To achieve the above object, the technical solution of the utility model is as follows:
A kind of novel thermal control structure battery core, which is characterized in that including battery core core, the first liquid cooling sheath body and the second liquid-cooled jacket
Shell, the first liquid cooling sheath body are closely arranged battery core core, the inner wall of the second liquid cooling sheath body by way of squeezing, being opened
Face surrounding is equipped with several ribs at equal intervals, and the second liquid-cooled jacket valve jacket sets the first liquid cooling sheath body, the second liquid cooling sheath body with
It is sealed by sealing ring at upper end and lower end port between first liquid cooling sheath body, it is internal to form a liquid storage chamber, the storage
Filling heat absorption phase-transition liquid, the sealing ring are equipped with round pressure valve in sap cavity.
The height of the second liquid cooling sheath body is the 1/2~2/ of the first liquid cooling sheath body height as a preferred technical solution,
3。
The first liquid cooling sheath body is identical as the height of battery core core as a preferred technical solution,.
The heat absorption phase-transition liquid is one of hydrofluorocarbon, hydrofluoroether, perfluocarbon or more as a preferred technical solution,
Kind mixed liquor.
10mm~20mm setting is spaced between each rib as a preferred technical solution, and the length of rib is than the
Difference in height 1cm~3cm of two liquid cooling sheath bodies.
The rib is made of steel as a preferred technical solution, the inner wall of each rib and the second liquid cooling sheath body
Face is integrally formed, and one end of each rib is in close contact by way of extruding with the outside wall surface of the first liquid cooling sheath body.
The utility model has the following beneficial effects: fever when by control single battery core electric discharge, can effectively prevent in battery
After in groups because between single battery core internal temperature it is uneven caused by thermal expansion, thermal runaway generation, electrical security is more preferable, economy effect
Benefit is more significant.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of novel thermal control structure battery core of the utility model；
Fig. 2 is the structural schematic diagram of the second liquid cooling sheath body in Fig. 1.
In figure: 1- battery core core, the first liquid cooling of 2- sheath body, the second liquid cooling of 3- sheath body, 4- rib, 5- sealing ring, 6- liquid storage
Chamber, 7- round pressure valve.
Specific embodiment
To make the structure feature to the utility model and the effect of being reached has a better understanding and awareness, to compared with
Good examples and drawings cooperate detailed description, are described as follows:
As shown in Fig. 1~2, a kind of novel thermal control structure battery core, including battery core core 1, the first liquid cooling sheath body 2 and the second liquid
Cold sheath body 3,2 shell of the first liquid-cooled jacket are closely arranged battery core core 1, the inner wall of the second liquid cooling sheath body 3 by way of squeezing, being opened
Face surrounding is equipped with several ribs 4 at equal intervals, and the second liquid cooling sheath body 3 is arranged the first liquid cooling sheath body 2, the second liquid cooling sheath body 3 and first
Pass through sealing ring 5 at upper end and lower end port between liquid cooling sheath body 2 to seal, it is internal to form a liquid storage chamber 6, liquid storage chamber 6
Interior filling heat absorption phase-transition liquid, sealing ring 5 are equipped with round pressure valve 7.
In the present embodiment, the height of the second liquid cooling sheath body 3 is the 1/2~2/3 of 2 height of the first liquid cooling sheath body.
In the present embodiment, the first liquid cooling sheath body 2 is identical as the height of battery core core 1.
In the present embodiment, heat absorption phase-transition liquid is one of hydrofluorocarbon, hydrofluoroether, perfluocarbon or a variety of mixed liquors.
In the present embodiment, 10mm~20mm setting is spaced between each rib 4, and the length of rib 4 is than the second liquid-cooled jacket
Difference in height 1cm~3cm of shell 3.
In the present embodiment, rib 4 is made of steel, and the inner wall of each rib 4 and the second liquid cooling sheath body 3 is integrally formed,
One end of each rib 4 is in close contact by way of extruding with the outside wall surface of the first liquid cooling sheath body 2.
In the present embodiment, the heat absorption phase-transition liquid in liquid storage chamber 6 can increase the thermal capacitance of single battery core, and battery core is working normally
When the heat that generates, partially absorbed by heat absorption phase-transition liquid, when the temperature of heat absorption phase-transition liquid gradually rises with battery core temperature, be more than
When its boiling point, heat absorption phase-transition liquid is changed from liquid to gaseous state, rapid spatial expansion, in the pressure threshold for reaching round pressure valve 7
When, round pressure valve 7 is opened, and gas sprays and take away amount of heat, to prevent thermal runaway；Meanwhile it can be covered after gas ejection
Around single battery, effectively completely cut off battery core, play fire extinguishing, is avoided that chain reaction thermal expansion occurs, electrical security is more
Good, economic benefit is more significant.
In conclusion the preferred embodiment of only the utility model, is not used to limit the utility model implementation
Range, all equivalent changes according to carried out by shape described in the utility model claims range, construction, feature and spirit with repair
Decorations, should be included in the scope of the claims of the utility model.
Claims (6)
1. a kind of novel thermal control structure battery core, which is characterized in that including battery core core, the first liquid cooling sheath body and the second liquid-cooled jacket
Shell, the first liquid cooling sheath body are closely arranged battery core core, the inner wall of the second liquid cooling sheath body by way of squeezing, being opened
Face surrounding is equipped with several ribs at equal intervals, and the second liquid-cooled jacket valve jacket sets the first liquid cooling sheath body, the second liquid cooling sheath body with
It is sealed by sealing ring at upper end and lower end port between first liquid cooling sheath body, it is internal to form a liquid storage chamber, the storage
Filling heat absorption phase-transition liquid, the sealing ring are equipped with round pressure valve in sap cavity.
2. a kind of novel thermal control structure battery core according to claim 1, it is characterised in that: the height of the second liquid cooling sheath body
Degree is the 1/2~2/3 of the first liquid cooling sheath body height.
3. a kind of novel thermal control structure battery core according to claim 2, it is characterised in that: the first liquid cooling sheath body and electricity
The height of core core is identical.
4. a kind of novel thermal control structure battery core according to claim 3, it is characterised in that: the heat absorption phase-transition liquid is hydrogen fluorine
One of hydrocarbon, hydrofluoroether, perfluocarbon or a variety of mixed liquors.
5. a kind of novel thermal control structure battery core according to claim 4, it is characterised in that: be spaced between each rib
10mm~20mm setting, and the length of rib is than difference in height 1cm~3cm of the second liquid cooling sheath body.
6. a kind of novel thermal control structure battery core according to claim 5, it is characterised in that: the rib is made of steel,
The inner wall of each rib and the second liquid cooling sheath body is integrally formed, and one end of each rib is by way of extruding with first
The outside wall surface of liquid cooling sheath body is in close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272217.8U CN208507890U (en) | 2018-08-08 | 2018-08-08 | A kind of novel thermal control structure battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272217.8U CN208507890U (en) | 2018-08-08 | 2018-08-08 | A kind of novel thermal control structure battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507890U true CN208507890U (en) | 2019-02-15 |
Family
ID=65300307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821272217.8U Active CN208507890U (en) | 2018-08-08 | 2018-08-08 | A kind of novel thermal control structure battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507890U (en) |
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2018
- 2018-08-08 CN CN201821272217.8U patent/CN208507890U/en active Active
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