CN220358200U - Heat insulation pad of power battery module - Google Patents
Heat insulation pad of power battery module Download PDFInfo
- Publication number
- CN220358200U CN220358200U CN202321625330.0U CN202321625330U CN220358200U CN 220358200 U CN220358200 U CN 220358200U CN 202321625330 U CN202321625330 U CN 202321625330U CN 220358200 U CN220358200 U CN 220358200U
- Authority
- CN
- China
- Prior art keywords
- layer
- heat insulation
- packaging film
- insulation layer
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 65
- 229920006280 packaging film Polymers 0.000 claims abstract description 52
- 239000012785 packaging film Substances 0.000 claims abstract description 52
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
- 239000000741 silica gel Substances 0.000 claims description 32
- 229910002027 silica gel Inorganic materials 0.000 claims description 32
- 239000004964 aerogel Substances 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 7
- 229920002799 BoPET Polymers 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 6
- 230000002829 reductive effect Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000003475 lamination Methods 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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 provides a heat insulation pad of a power battery module, which sequentially comprises a first packaging film layer (10), a first heat insulation layer (20), a reflecting layer (30), a second heat insulation layer (40) and a second packaging film layer (50) from top to bottom; through the lamination arrangement of the first heat insulation layer (20), the reflecting layer (30) and the second heat insulation layer (40), the attenuation of heat radiation is realized, the convection heat transfer is reduced, and the integral heat insulation effect and the thermal shock protection capability of the heat insulation pad are improved. The application is suitable for the field of heat protection of various power batteries of new energy automobiles and the like, and has wide application range and strong practicability.
Description
Technical Field
The utility model relates to the technical field of new energy automobiles, in particular to a heat insulation pad of a power battery module.
Background
The new energy automobile power battery system is formed by connecting a plurality of battery monomers in series or in parallel to form a module, and then combining the module into a battery pack; when mechanical safety accidents such as actual collision occur, a certain battery monomer is subjected to thermal runaway under the limit condition, and then is transmitted to surrounding monomers, and even is expanded to the whole battery pack, so that the thermal runaway is blocked from spreading in the battery pack, the deterioration after the occurrence of the accidents can be effectively restrained, and the serious consequences such as secondary damage and the like are avoided. The heat insulation pad is arranged between adjacent battery monomers and the module, so that the effect of thermal runaway expansion can be directly restrained, and Chinese patent document CN110901201A discloses a preparation process of a power battery buffer heat insulation pad, wherein the battery buffer heat insulation pad comprises a packaging film I, a packaging film II, a buffer frame and a flame-retardant heat insulation layer; a buffer frame and a flame-retardant heat-insulating layer are arranged between the packaging film I and the packaging film II, and the flame-retardant heat-insulating layer is positioned in a buffer hole of the buffer frame, so that the inhibition of thermal runaway expansion is realized through the battery buffer heat-insulating pad with the structure; however, as the requirements on the endurance mileage and the safety of the new energy automobile are continuously improved, the requirements on the heat insulation performance, the thickness and the like of the heat insulation pad are continuously improved, and the heat cannot be effectively blocked only through a single flame-retardant heat insulation layer, so that the limitation is large, and the inhibition effect of thermal runaway expansion is affected.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model aims to provide the heat insulation pad for the power battery module, which can effectively improve the integral heat insulation effect and the heat shock protection capability, thereby inhibiting the thermal runaway expansion and improving the safety of the power battery.
The aim of the utility model is achieved by the following technical scheme:
the utility model provides a power battery module heat insulating mattress which characterized in that: the packaging structure comprises a first packaging film layer, a first heat insulation layer, a reflecting layer, a second heat insulation layer and a second packaging film layer from top to bottom.
As the preferred scheme of this application, set up the silica gel frame between first encapsulation rete and the first insulating layer, between second encapsulation rete and the second insulating layer, and first insulating layer, second insulating layer set up respectively in the embedding hole of silica gel frame, reflection layer both sides side is connected with first insulating layer, second insulating layer respectively.
As a preferable scheme of the application, the thickness of the first heat insulation layer and the second heat insulation layer is smaller than that of the corresponding silica gel frame, the length and width dimensions of the first heat insulation layer and the second heat insulation layer are smaller than that of the corresponding silica gel frame, and the length and width dimensions of the silica gel frame are consistent with those of the reflecting layer, the first packaging film layer and the second packaging film layer; the first heat insulating layer and the second heat insulating layer have the same size (thickness, length and width), and the first packaging film layer and the second packaging film layer have the same thickness.
As a preferable scheme of the application, the thickness of the first heat insulation layer and the second heat insulation layer is 0.5-5 mm, and the thickness of the reflecting layer is 0.005-0.15 mm.
As a preferable scheme of the application, the thickness of the first packaging film layer and the second packaging film layer is 0.01-0.1 mm.
As a preferred solution of the present application, the first insulating layer and the second insulating layer are made of any fiber reinforced aerogel material such as basalt fiber reinforced aerogel, glass fiber reinforced aerogel, ceramic fiber reinforced aerogel, and pre-oxidized fiber reinforced aerogel. The heat insulating materials of the first heat insulating layer and the second heat insulating layer have low heat conductivity coefficient and high use temperature and are used for inhibiting solid heat transfer.
As a preferable mode of the present application, the reflecting layer is made of a metal foil such as aluminum foil or stainless steel foil, or any one of polymer aluminum-plated/aluminum-containing films such as polyimide film, aluminum-plated PET film, or the like. The material of the reflecting layer has high infrared radiation emissivity and has higher reflecting effect on heat radiation rays.
As a preferred scheme of the application, the first packaging film layer and the second packaging film layer adopt any one of a PC film, a PET film, a PI film, a PMMA film and a PS film; the packaging film layer material can play a role in protecting moisture and insulation and has the characteristics of high temperature resistance, high-voltage breakdown resistance, puncture resistance, high tensile strength, good flexibility and the like.
The utility model has the following technical effects:
according to the heat insulation device, through the combination of the first heat insulation layer, the reflecting layer and the second heat insulation layer, the heat radiation which is transmitted by the heat insulation layer is restrained, the reflecting layer is used for reflecting the heat radiation so as to insulate heat, and the heat insulation layer is used for restraining the heat radiation, so that convection heat transfer is effectively reduced, and heat insulation are realized; simultaneously, this application is through setting up, the setting of cooperation reflection stratum of silica gel frame, realizes effectively supporting and fixing the insulating material in first insulating layer and the second insulating layer, prevents that the insulating layer (first insulating layer, second insulating layer promptly) from falling the powder, satisfies the assembly demand, guarantees the homogeneity of thermal insulation. In addition, utilize thickness, the length and width size's of reflection stratum, silica gel layer and insulating layer (i.e. first insulating layer, second insulating layer) setting, firstly accomplish insulating material's fixed, support, secondly reflect, insulate against heat to insulating layer (i.e. first insulating layer, second insulating layer) dead angle (i.e. silica gel frame part), avoid appearing thermal-insulated dead angle and temperature collection point to satisfy the thermal-insulated demand that battery Bao Re is out of control, guarantee the cushioning properties of insulating pad.
Drawings
Fig. 1 is a schematic structural diagram of a heat insulation pad (without a silica gel frame) according to an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of a heat insulation pad (including a silica gel frame) according to an embodiment of the utility model.
10, a first packaging film layer; 20. a first insulating layer; 30. a reflective layer; 40. a second insulating layer; 50. a second encapsulation film layer; 60. and a silica gel frame.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1:
as shown in fig. 1: the utility model provides a power battery module heat insulating mattress which characterized in that: the packaging film comprises a first packaging film layer 10, a first heat insulation layer 20, a reflecting layer 30, a second heat insulation layer 40 and a second packaging film layer 50 from top to bottom.
The first heat insulating layer 20 and the second heat insulating layer 40 are basalt fiber reinforced aerogel with the thickness of 1.5mm, the reflecting layer is aluminum foil with the thickness of 0.01mm, and the first packaging film layer 10 and the second packaging film layer 50 are PET films with the thickness of 0.07 mm. In the preparation process, the four edges of the first packaging film layer 10 and the second packaging film layer 50 are internally rolled, so that the materials of the first heat insulation layer 20 and the second heat insulation layer 40 are retained and supported; q, and four curls of the first encapsulation film layer 10 and the second encapsulation film layer 50 are respectively connected with the reflective layer 30.
The heat insulation pad has a hot surface temperature of 800 ℃ and a cold surface temperature of 233 ℃ at 800s and 263 ℃ at 1200s when the pressure is applied to 1 MPa.
Meanwhile, the heat insulation performance test of a plurality of groups of heat insulation pads is respectively carried out, and the following steps are defined: the total thickness of the heat insulating reflective layer consisting of the first heat insulating layer 20, the reflective layer 30, and the second heat insulating layer 40 was D, and the test results are shown in table 1 below.
Table 1:
example 2:
as shown in fig. 2: the utility model provides a power battery module heat insulating mattress which characterized in that: the packaging film comprises a first packaging film layer 10, a silica gel frame 60, a first heat insulation layer 20, a reflecting layer 30, a second heat insulation layer 40, the silica gel frame 60 and a second packaging film layer 50 from top to bottom in sequence; the first heat insulating layer 20 and the second heat insulating layer 40 are respectively disposed in the embedded holes of the silica gel frame 60 (as shown in fig. 2, the embedded holes are formed on the side surface of the upper silica gel frame 60 away from the first packaging film layer 10, and the embedded holes are formed on the side surface of the lower silica gel frame 60 away from the second packaging film layer 50), and the two side surfaces of the reflective layer 30 are respectively connected with the first heat insulating layer 20 and the second heat insulating layer 40.
The length-width dimensions of the first heat insulating layer 20 and the second heat insulating layer 40 are smaller than the length-width dimensions of the corresponding silica gel frame 60, and the length-width dimensions of the silica gel frame 60 are consistent with the length-width dimensions of the reflecting layer 30, the first packaging film layer 10 and the second packaging film layer 50; the first insulating layer 20 and the second insulating layer 40 have the same length and width dimensions.
The first and second heat insulating layers 20 and 40 are 1.0mm thick glass fiber reinforced aerogel, the reflecting layer 30 is 0.02mm thick stainless steel foil, the first and second packaging film layers 10 and 20 are 0.05mm thick PET film, and the thickness of the silica gel frame 60 is 1.5mm (i.e. 0.5mm thicker than the corresponding first or second heat insulating layer 20 and 40)
The heat insulation pad has a cold surface and hot surface temperature of 263 ℃ at 800s and 315 ℃ at 1200s when the hot surface temperature is 800 ℃ and the applied pressure is 0.5 MPa.
Example 3:
as shown in fig. 2: the utility model provides a power battery module heat insulating mattress which characterized in that: the packaging film comprises a first packaging film layer 10, a silica gel frame 60, a first heat insulation layer 20, a reflecting layer 30, a second heat insulation layer 40, the silica gel frame 60 and a second packaging film layer 50 from top to bottom in sequence; the first heat insulating layer 20 and the second heat insulating layer 40 are respectively disposed in the embedded holes of the silica gel frame 60 (as shown in fig. 2, the embedded holes are formed on the side surface of the upper silica gel frame 60 away from the first packaging film layer 10, and the embedded holes are formed on the side surface of the lower silica gel frame 60 away from the second packaging film layer 50), and the two side surfaces of the reflective layer 30 are respectively connected with the first heat insulating layer 20 and the second heat insulating layer 40.
The length-width dimensions of the first heat insulating layer 20 and the second heat insulating layer 40 are smaller than the length-width dimensions of the corresponding silica gel frame 60, and the length-width dimensions of the silica gel frame 60 are consistent with the length-width dimensions of the reflecting layer 30, the first packaging film layer 10 and the second packaging film layer 50; the first insulating layer 20 and the second insulating layer 40 have the same length and width dimensions.
The first heat insulating layer 20 and the second heat insulating layer 40 are glass fiber reinforced aerogel with the thickness of 2.0mm, the reflecting layer 30 is an aluminized polyimide film with the thickness of 0.03mm (namely, the front side and the back side of the polyimide film are aluminized), the first packaging film layer 10 and the second packaging film layer 20 are PI films with the thickness of 0.08mm, and the thickness of the silica gel frame 60 is 3.0mm.
The heat insulation pad has a cold surface temperature of 192 ℃ at 800s and 228 ℃ at 1200s when the hot surface temperature is 800 ℃ and the applied pressure is 0.8 MPa.
Claims (5)
1. The utility model provides a power battery module heat insulating mattress which characterized in that: the packaging structure comprises a first packaging film layer (10), a first heat insulation layer (20), a reflecting layer (30), a second heat insulation layer (40) and a second packaging film layer (50) from top to bottom in sequence;
the silica gel frame (60) is arranged between the first packaging film layer (10) and the first heat insulation layer (20) and between the second packaging film layer (50) and the second heat insulation layer (40), the first heat insulation layer (20) and the second heat insulation layer (40) are respectively arranged in embedded holes of the silica gel frame (60), and two side surfaces of the reflecting layer (30) are respectively connected with the first heat insulation layer (20) and the second heat insulation layer (40).
2. The heat insulation pad of claim 1, wherein: the thickness of the first heat insulation layer (20) and the second heat insulation layer (40) is smaller than that of the corresponding silica gel frame (60), the length and width dimensions of the first heat insulation layer (20) and the second heat insulation layer (40) are smaller than that of the corresponding silica gel frame (60), and the length and width dimensions of the silica gel frame (60) are consistent with those of the reflecting layer (30), the first packaging film layer (10) and the second packaging film layer (50); the first heat insulating layer (20) and the second heat insulating layer (40) are consistent in size, and the first packaging film layer (10) and the second packaging film layer (50) are consistent in thickness.
3. The heat insulating mat for a power battery module according to claim 1 or 2, wherein: the first heat insulation layer (20) and the second heat insulation layer (40) adopt any one of basalt fiber reinforced aerogel, glass fiber reinforced aerogel, ceramic fiber reinforced aerogel and pre-oxidized fiber reinforced aerogel.
4. The heat insulating mat for a power battery module according to claim 1 or 2, wherein: the reflecting layer (30) adopts aluminum foil, stainless steel foil or any one of polyimide film, aluminized polyimide film and aluminized PET film.
5. The heat insulating mat for a power battery module according to claim 1 or 2, wherein: the first packaging film layer (10) and the second packaging film layer (50) adopt any one of PC film, PET film, PI film, PMMA film and PS film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321625330.0U CN220358200U (en) | 2023-06-26 | 2023-06-26 | Heat insulation pad of power battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321625330.0U CN220358200U (en) | 2023-06-26 | 2023-06-26 | Heat insulation pad of power battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220358200U true CN220358200U (en) | 2024-01-16 |
Family
ID=89506545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321625330.0U Active CN220358200U (en) | 2023-06-26 | 2023-06-26 | Heat insulation pad of power battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220358200U (en) |
-
2023
- 2023-06-26 CN CN202321625330.0U patent/CN220358200U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105742755B (en) | A kind of composite plate for being radiated for battery system and preventing thermal runaway from propagating | |
| US4514450A (en) | Peg supported thermal insulation panel | |
| RU2499941C2 (en) | Multi-layered insulating device for pipelines heating and method | |
| Beikircher et al. | Advanced solar flat plate collectors with full area absorber, front side film and rear side vacuum super insulation | |
| US20080006320A1 (en) | Photovoltaic apparatus | |
| CN204001578U (en) | A kind of floor heating module of dry type paved | |
| CN202121030U (en) | High heat conducting safety structure of lithium ion battery | |
| CN220358200U (en) | Heat insulation pad of power battery module | |
| CN216958236U (en) | Battery module, battery and power consumption device | |
| CN113594109A (en) | Hot press forming heat conducting film | |
| CN210072530U (en) | One-way heat-conducting plate of graphite alkene | |
| CN217562698U (en) | High-safety soft package battery module and electric vehicle | |
| CN217047831U (en) | Buffering flame retardant material structure and battery pack | |
| CN114180026B (en) | Composite flexible heat protection structure for dredging phase change and application of composite flexible heat protection structure in deformable aircraft | |
| CN210516845U (en) | Power battery module | |
| KR102218390B1 (en) | Sandwich steel sheet having polymer core and method of manufacturing the same | |
| CN219717017U (en) | Battery cell heat insulation pad | |
| CN114015377A (en) | Wide-temperature-range gradient multilayer self-adhesion type constrained damping material and preparation method thereof | |
| CN211150722U (en) | Battery heat radiation structure | |
| CN219698282U (en) | Heat conduction pad for battery wire harness | |
| JP7332332B2 (en) | Heat transfer suppression sheet and assembled battery | |
| CN206864576U (en) | New new energy battery heating plate | |
| CN215572451U (en) | Bulletproof plate structure | |
| CN220341345U (en) | Novel heat-insulating fireproof material for power battery | |
| CN206685509U (en) | A kind of heat management design of battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |