CN207250681U - A kind of cylindrical lithium ion power cell module phase-change heat protective device - Google Patents
A kind of cylindrical lithium ion power cell module phase-change heat protective device Download PDFInfo
- Publication number
- CN207250681U CN207250681U CN201721301746.1U CN201721301746U CN207250681U CN 207250681 U CN207250681 U CN 207250681U CN 201721301746 U CN201721301746 U CN 201721301746U CN 207250681 U CN207250681 U CN 207250681U
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- Prior art keywords
- battery
- heat
- lithium ion
- cell module
- protective device
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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 discloses a kind of cylindrical lithium ion power cell module phase-change heat protective device; include A upper brackets, B confluences aluminium sheet, C battery cores, D casting glues, E PCM materials, F lower carriages; E PCM materials are directly wrapped in C battery cores; D casting glues are directly filled in around the C battery cores for having wrapped up PCM material; B confluence aluminium sheets are fixed on A upper brackets; and directly contacted with D casting glues; in C battery core discharge and recharges; E PCM materials can absorb heat; each regional temperature in rapid equalisation battery modules, ensures that battery modules temperature is uniform.If short-circuit thermal runaway occurs for a wherein battery core for battery pack, E PCM materials can be undergone phase transition, absorb substantial amounts of heat, run through D casting glues and be conducted to B confluence aluminium sheets, heat is transferred out to come, avoids local temperature from raising, heat is directly conducted to battery core around, cause chain reaction to cause whole battery pack global failure, or even explosion on fire, eliminate security risk.
Description
Technical field
It the utility model is related to a kind of cylindrical lithium ion power cell module phase-change heat protective device.
Background technology
Core energy members of the power battery module as electric automobile, its performance directly influence the property of electric automobile
Energy.The uniformity of the operating temperature of battery modules plays extremely important effect, in battery core discharge and recharge, battery core to power battery
A certain amount of heat can be released, causes battery core body to be raised with ambient temperature, if untreated, may result in honeycomb effect
Should, battery module central temperature can be higher than peripheral temperature, and battery core will be uneven by the uneven discharge capacity that influenced of temperature, leads
Cause consistency of battery pack to be deteriorated, influence battery life, in addition, if a wherein battery core for battery pack occurs short circuit heat and loses
Control, can directly be conducted to heat battery core around, cause chain reaction to cause whole battery pack global failure, or even rise hot
Fried, there are security risk.
The type of cooling used in the prior art is mainly that air cooling and liquid are cold.Air cooling structure is simple, weight is small, into
This is low, but cooling effect is poor, while cannot effectively avoid battery modules wherein chain reaction caused by a battery core failure, liquid
Although cold good cooling results, complicated, seal request is high, and weight is relatively large, and maintenance is complicated, of high cost.
The content of the invention
The technical problems to be solved in the utility model and the technical assignment proposed are to utilize the phase-change material for having heat accumulation function
PCM material E pieces, are wrapped in battery core surrounding, and to reach heat absorption and thermal conducting function, PCM material E can absorb substantial amounts of heat, and fast
Speed conducts heat, so that the surface temperature of battery core reduces, avoids cellular effect and thermal runaway chain reaction.
The technical solution of the utility model is：
A kind of cylindrical lithium ion power cell module phase-change heat protective device, includes upper bracket A, confluence aluminium sheet B, electricity
Core C, casting glue D, PCM material E, lower carriage F, PCM material E are directly wrapped on battery core C, and casting glue D is directly filled in parcel
Around the battery core C of PCM material E, confluence aluminium sheet B is fixed on upper bracket A, and is directly contacted with casting glue D, is filled in battery core C
During electric discharge, PCM material E can absorb heat, each regional temperature in rapid equalisation battery modules, ensure that battery modules temperature is equal
It is even.If short-circuit thermal runaway occurs for a wherein battery core for battery pack, PCM material E can be undergone phase transition, and absorb substantial amounts of heat, fast
Speed is conducted to confluence aluminium sheet B by casting glue D, and heat is transferred out to come, avoids local temperature from raising, heat is directly conducted to
Surrounding battery core, causes chain reaction to cause whole battery pack global failure, or even explosion on fire, eliminates security risk.
Brief description of the drawings
Fig. 1 is a kind of showing for cylindrical lithium ion power cell module phase-change heat protective device comprising the utility model
It is intended to.
Wherein, A- upper brackets, B- confluences aluminium sheet, C- battery cores, D- casting glues, E-PCM materials, F- lower carriages.
Embodiment
The utility model is described further below in conjunction with Figure of description.
Fig. 1 is that the utility model discloses a kind of cylindrical lithium ion power cell module phase-change heat protective device, bag
A containing upper bracket, confluence aluminium sheet B, battery core C, casting glue D, PCM material E, lower carriage F, PCM material E are directly wrapped in battery core C
On, casting glue D is directly filled in around the battery core C for having wrapped up PCM material E, confluence aluminium sheet B be fixed on upper bracket A, and with filling
Sealing D is directly contacted, and in battery core C discharge and recharges, PCM material E can absorb heat, rapid equalisation battery modules Nei Ge areas
Domain temperature, ensures that battery modules temperature is uniform.If short-circuit thermal runaway, PCM material E occur for a wherein battery core for battery pack
It can undergo phase transition, absorb substantial amounts of heat, run through casting glue D and be conducted to confluence aluminium sheet B, heat is transferred out to come, avoids office
Portion's temperature rise, is directly conducted to heat battery core around, causes chain reaction to cause whole battery pack global failure, or even rise
It is hot fried, eliminate security risk.
Claims (5)
1. a kind of cylindrical lithium ion power cell module phase-change heat protective device, comprising upper bracket (A), confluence aluminium sheet (B),
Battery core (C), casting glue (D), PCM material (E), lower carriage (F), it is characterised in that PCM (E) material is directly wrapped in battery core (C)
On, casting glue (D) is directly filled in around the battery core (C) for having wrapped up PCM material (E), and confluence aluminium sheet (B) is fixed on upper bracket
(A) on, and directly contacted with casting glue (D).
A kind of 2. cylindrical lithium ion power cell module phase-change heat protective device as claimed in claim 1, it is characterised in that
PCM material (E) is phase-change material.
A kind of 3. cylindrical lithium ion power cell module phase-change heat protective device as claimed in claim 1, it is characterised in that
The specific heat capacity of PCM material (E) is 2400-2500J/kg DEG C.
A kind of 4. cylindrical lithium ion power cell module phase-change heat protective device as claimed in claim 1, it is characterised in that
Casting glue (D) is soft heat-conducting glue.
A kind of 5. cylindrical lithium ion power cell module phase-change heat protective device as claimed in claim 1, it is characterised in that
Casting glue (D) is directly contacted with confluence aluminium sheet (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721301746.1U CN207250681U (en) | 2017-10-11 | 2017-10-11 | A kind of cylindrical lithium ion power cell module phase-change heat protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721301746.1U CN207250681U (en) | 2017-10-11 | 2017-10-11 | A kind of cylindrical lithium ion power cell module phase-change heat protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250681U true CN207250681U (en) | 2018-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721301746.1U Active CN207250681U (en) | 2017-10-11 | 2017-10-11 | A kind of cylindrical lithium ion power cell module phase-change heat protective device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207250681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546441A (en) * | 2017-10-11 | 2018-01-05 | 东莞市振华新能源科技有限公司 | A kind of cylindrical lithium ion power cell module phase-change heat protection device |
-
2017
- 2017-10-11 CN CN201721301746.1U patent/CN207250681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546441A (en) * | 2017-10-11 | 2018-01-05 | 东莞市振华新能源科技有限公司 | A kind of cylindrical lithium ion power cell module phase-change heat protection device |
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