CN212366119U - Battery module and flame-retardant heat insulation plate thereof - Google Patents
Battery module and flame-retardant heat insulation plate thereof Download PDFInfo
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- CN212366119U CN212366119U CN202021571083.7U CN202021571083U CN212366119U CN 212366119 U CN212366119 U CN 212366119U CN 202021571083 U CN202021571083 U CN 202021571083U CN 212366119 U CN212366119 U CN 212366119U
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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 battery module and fire-retardant heat insulating board thereof, fire-retardant heat insulating board, include: an insulating and heat insulating module; the two insulating flame-retardant modules are oppositely arranged and define an installation space, and the insulating heat-insulating module is arranged in the installation space, wherein the length of the insulating flame-retardant module is not less than the length of the insulating heat-insulating module, and the width of the insulating flame-retardant module is not less than the width of the insulating heat-insulating module; wherein the thermal conductivity of the insulating and heat insulating module is lower than the thermal conductivity of the insulating and heat insulating module; the highest heat-resistant temperature of the insulating and flame-retardant module is greater than that of the insulating and heat-insulating module. According to the utility model discloses fire-retardant heat insulating board fire resistance is good, the heat-proof quality is strong and insulating nature is excellent.
Description
Technical Field
The utility model belongs to the technical field of the power battery technique and specifically relates to a fire-retardant heat insulating board is related to, uses the battery module of this fire-retardant heat insulating board to and the battery package of constituteing by this battery module.
Background
The lithium ion battery is one of core power sources of the new energy automobile as the heart of the new energy automobile, and the capacity and the safety of the lithium ion battery always belong to the focus of public attention. Therefore, the solution of the battery module and the battery pack of the new energy automobile in the aspects of thermal runaway identification, thermal diffusion prevention and abnormal heat source elimination becomes one of the key technologies for developing the new energy automobile.
CATL, LG and SK head lithium ion battery manufacturers often adopt flame retardant polyurethane foam, aerogel felt, silicate or silica gel and other materials to construct a 'firewall', but the 'firewall' has the defects of self combustion under flame, large thermal shrinkage or poor heat insulation, and cannot provide the rigid support function required by soft package lithium ion batteries.
Under the large background of pursuing a lithium ion power battery with high endurance and high safety performance, a lithium ion battery thermal protection scheme with good flame retardance, strong heat insulation and excellent insulation is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.
Therefore, the embodiment of the first aspect of the present invention provides a flame retardant and heat insulation board, which has good flame retardancy, strong heat insulation property, excellent insulation property and large strength.
The embodiment of the second aspect of the utility model provides an use battery module of this fire-retardant heat insulating board, this battery module has higher security performance.
According to the utility model discloses fire-retardant heat insulating board of first aspect embodiment includes: an insulating and heat insulating module; the two insulating flame-retardant modules are oppositely arranged and define an installation space, and the insulating heat-insulating module is arranged in the installation space, wherein the length of the insulating flame-retardant module is not less than the length of the insulating heat-insulating module, and the width of the insulating flame-retardant module is not less than the width of the insulating heat-insulating module; wherein the thermal conductivity of the insulating and heat insulating module is lower than the thermal conductivity of the insulating and heat insulating module; the highest heat-resistant temperature of the insulating and flame-retardant module is greater than that of the insulating and heat-insulating module.
According to the utility model discloses fire-retardant heat insulating board is through insulating the heat insulating module setting between two insulating fire-retardant modules to can make having of this fire-retardant heat insulating board insulating, fire-retardant and thermal-insulated characteristics, can satisfy the functional demand at the different positions of battery module, improve battery module's security and wholeness.
Moreover, the length of the insulating flame-retardant module is not less than that of the insulating flame-retardant module, and the width of the insulating flame-retardant module is not less than that of the insulating flame-retardant module, so that the insulating flame-retardant module can be utilized to cover the insulating flame-retardant module within the range of the length and the width, the structure of the flame-retardant heat-insulating plate is more stable, the insulating, flame-retardant and heat-insulating effects are better, and the structure and the size of a product are reliably guaranteed.
According to the utility model discloses an embodiment, the middle part of insulating thermal insulation module's at least one side edge outwards bulges, insulating fire-retardant module's corresponding side edge with insulating thermal insulation module's corresponding side edge shape corresponds.
According to the utility model discloses an embodiment, a width direction's of insulating thermal insulation module one side edge has the bulge, the bulge is located insulating thermal insulation module's length direction's middle part.
According to an embodiment of the invention, both ends of the protrusion have an inclined extension.
According to an embodiment of the present invention, the insulating and heat insulating module includes a plurality of insulating and heat insulating modules arranged to be spaced apart from each other.
According to the utility model discloses an embodiment, adjacent two the clearance intussuseption of insulating thermal insulation module is filled with withstand voltage thermal insulation module.
According to the utility model discloses an embodiment, it is a plurality of insulating thermal insulation module is followed the length direction of insulating fire-retardant module is spaced apart the setting.
According to the utility model discloses an embodiment, be equipped with blind hole or through hole on the insulating thermal insulation module, the blind hole with the through hole intussuseption is filled with withstand voltage thermal insulation module.
According to an embodiment of the invention, the blind hole or the through hole is a closed hole.
According to an embodiment of the present invention, the shape of the blind hole or the through hole includes at least one of a circle, an ellipse, and a polygon, or a combination of a plurality thereof.
According to the utility model discloses an embodiment, the blind hole or the through hole includes a plurality ofly, and is a plurality of the blind hole or the through hole is along the length or the width direction spaced apart setting of insulating fire-retardant module.
According to the utility model discloses battery module of second aspect embodiment includes: a cell stack; according to the flame-retardant heat-insulating plate, at least one side surface of the cell stack is provided with the flame-retardant heat-insulating plate.
According to the utility model discloses battery module has higher intensity, has good compressive resistance, and battery module's security and wholeness are good.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a flame retardant insulation panel according to an embodiment of the invention;
fig. 2 to 7 are partial structural views of the flame retardant and heat insulating panel according to various embodiments of the present invention, in which one of the insulating flame retardant modules of the flame retardant and heat insulating panel is hidden;
fig. 8 is a schematic structural view of a battery module according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;
fig. 10 is a plan view of the battery pack shown in fig. 9.
Reference numerals:
a battery pack 2000;
a battery module 1000;
a high strength flame retardant module 3000; a connection hole 3001;
a flame-retardant heat-insulating board 100;
an insulating and heat insulating module 10; a recessed portion 11; a tooth portion 12; a protruding structure 13; an inclined extension 14; a void 15; a blind hole 16; a through hole 16;
a high strength insulating flame retardant module 20; the gap 21; the projection 22; a tooth slot 23; a first through hole 24;
an insulating flame-retardant module 30; a second through hole 31;
a cell stack 200; an electric core 201; a flame retardant and heat insulating top panel 300; a flame-retardant heat-conducting unit 400; the flame retardant buffer unit 500.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A flame retardant and insulating panel 100 according to an embodiment of the first aspect of the present invention will be described with reference to fig. 1 to 7.
According to an embodiment of the present invention, as shown in fig. 1 to 7, the flame-retardant and heat-insulating panel 100 includes: an insulating and heat insulating module 10 and two insulating and flame retardant modules 30.
The two insulating flame-retardant modules 30 are oppositely arranged and define an installation space, and the insulating flame-retardant module 10 is arranged in the installation space, wherein the length of the insulating flame-retardant module 30 is not less than the length of the insulating flame-retardant module 10, and the width of the insulating flame-retardant module 30 is not less than the width of the insulating flame-retardant module 10; wherein the thermal conductivity of the insulating flame retardant module 10 is lower than the thermal conductivity of the insulating flame retardant module 30; the maximum heat-resistant temperature of the insulating flame retardant module 30 is greater than the maximum heat-resistant temperature of the insulating flame retardant module 10.
The thermal conductivity of the insulating and heat insulating module 10 is the lowest, so that the insulating and heat insulating module 10 has better heat insulating performance; the heat-resistant temperature of the insulating flame-retardant module 30 is the highest, so that the insulating flame-retardant module 30 is located at the outermost side of the flame-retardant and heat-insulating board 100, thereby ensuring that the flame-retardant and heat-insulating board 100 has strong deformation resistance, and ensuring the strength of the flame-retardant and heat-insulating board 100.
Wherein the insulating and heat insulating module 10 may have insulating and heat insulating properties, alternatively, the insulating and heat insulating module 10 may include one or a combination of more of inorganic ceramic fibers, aerogel blanket, composite silicate board, composite silicate pipe, highly flame-retardant silica gel foam, foam coated with fireproof insulating paint.
The insulating flame retardant module 30 may include one or more of mica board, aramid fiber, corundum mullite, silica fiber board, silicon carbide, zirconia, molybdenum disulfide.
From this, according to the utility model discloses fire-retardant heat insulating board 100 through with insulating thermal-insulated module 10 setting between two insulating fire-retardant modules 30 to can make having of this fire-retardant heat insulating board 100 insulating, fire-retardant and thermal-insulated characteristics, can satisfy the functional requirement at the different positions of battery module 1000, improve battery module 1000's security and wholeness.
Moreover, the length of the insulating flame-retardant module 30 is not less than the length of the insulating flame-retardant module 10, and the width of the insulating flame-retardant module 30 is not less than the width of the insulating flame-retardant module 10, so that the insulating flame-retardant module 30 can be utilized to cover the insulating flame-retardant module 10 within the range of the length and the width, thereby enabling the structure of the flame-retardant heat-insulating board 100 to be more stable, the insulating, flame-retardant and heat-insulating effects to be better, and the structure and the size of the product to be reliably guaranteed.
As shown in fig. 1 to 7, a flame retardant and heat insulating panel 100 according to another embodiment of the present invention includes: an insulating and heat insulating module 10, at least two high-strength insulating and flame-retardant modules 20, and two insulating and flame-retardant modules 30.
In some embodiments of the present invention, the insulating and heat insulating module 10, the insulating and heat retarding module 30, and the high-strength insulating and heat retarding module 20 are provided, and among these three modules, the heat conductivity coefficient of the insulating and heat insulating module 10 is the lowest, so that the insulating and heat insulating module 10 has better heat insulating performance; the strength of the high-strength insulating and flame-retardant module 20 is the highest, so that the overall strength and connection requirements of the flame-retardant and heat-insulating board 100 can be met; the heat-resistant temperature of the insulating flame-retardant module 30 is the highest, so that the insulating flame-retardant module 30 is located at the outermost side of the flame-retardant and heat-insulating board 100, thereby ensuring that the flame-retardant and heat-insulating board 100 has strong deformation resistance, and ensuring the strength of the flame-retardant and heat-insulating board 100.
The high-strength insulating and flame-retardant module 20 has high strength and has insulating and flame-retardant properties, and optionally, the high-strength insulating and flame-retardant module 20 may be made of honeycomb aluminum, silicone rubber foam, and epoxy board with fireproof insulating paint, so that the overall strength and connection requirements of the flame-retardant and heat-insulating board 100 may be satisfied.
Wherein, in some embodiments of the present invention, at least two high-strength insulating and flame-retardant modules 20 are disposed at least at the left and right sides of the insulating and heat-insulating module 10, for example, a high-strength insulating and flame-retardant module 20 is disposed at the left side of the insulating and heat-insulating module 10, and a high-strength insulating and flame-retardant module 20 is also disposed at the right side of the insulating and heat-insulating module 10. The two insulating and flame-retardant modules 30 are oppositely arranged and define an installation space, and the insulating and heat-insulating module 10 and the high-strength insulating and flame-retardant module 20 are arranged in the installation space.
According to the utility model discloses fire-retardant heat insulating board 100 through setting up insulating heat insulating module 10, two at least high strength insulating flame retardant module 20 and two insulating flame retardant module 30, not only makes this fire-retardant heat insulating board 100 have insulating, fire-retardant and thermal-insulated characteristics from this, has higher intensity simultaneously, has good compressive resistance, can satisfy the functional demand at the different positions of battery module 1000, has improved battery module 1000's security and wholeness.
A flame-retardant and heat-insulating panel 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the middle of at least one side edge of the insulating and heat insulating module 10 protrudes outward, and the corresponding side edge of the insulating and heat insulating module 30 corresponds to the corresponding side edge of the insulating and heat insulating module 10 in shape, that is, the middle of the corresponding side edge of the insulating and heat insulating module 30 and the corresponding side edge of the insulating and heat insulating module 10 also protrudes outward, so that the protruding portion of the middle of the assembled and molded flame-retardant and heat-insulating board 100 can be higher than the battery stack 200 for the purpose of flame-blocking, flame-insulating and high-temperature insulation. In addition, when the battery module 1000 is assembled in place, both sides of the middle protrusion structure 13 of the flame retardant and heat insulating panel 100 may be lower than the top of the cell stack 200, so that a part of the structure of the cell stack 200 may be exposed, and the installation of the related sensing elements of the cell stack 200 may be facilitated.
Specifically, as shown in fig. 1 to 7, one side edge in the width direction of the insulating and heat insulating module 10 has a projecting structure 13, and the projecting structure 13 is located in the middle of the insulating and heat insulating module 10 in the length direction. The protrusion structure 13 is located at the middle of the fire-retardant and heat-insulating panel 100 and extends in the length direction, thereby making it possible to block most of the structure of the cell stack 200 from fire.
As shown in fig. 1 to 7, the two ends of the protruding structure 13 are provided with the inclined extensions 14, so that the transition of the protruding structure 13 can be smoother, the product can be prevented from having sharp protrusions, and the structural stability of the product can be improved.
The utility model discloses an in some embodiments, insulating thermal insulation module 10 includes a plurality ofly, and a plurality of insulating thermal insulation modules 10 are spaced apart from each other and are set up, and two adjacent insulating thermal insulation modules 10 have space 15 each other, can be guaranteeing that fire-retardant heat insulating board 100 has under the prerequisite of certain heat-proof quality from this, reduce cost and the quality that alleviates the product, reach product light, efficient purpose.
Preferably, the space 15 between two adjacent insulating and heat insulating modules 10 is filled with a pressure-resistant insulating module, whereby the compression resistance of the flame-retardant and heat-insulating panel 100 in the thickness direction can be improved. Alternatively, the positions of the insulating and heat insulating module 10 and the pressure-resistant insulating module may be interchanged, and the insulating and heat insulating module 10 and the pressure-resistant insulating module may be of the same product size, the same material, or may be determined according to the compression and heat insulating performance requirements of the battery packs 2000 of different models. Alternatively, the number of the insulating and heat insulating modules 10 may be one or more, whereby the structural layout of the product may be facilitated. The pressure-resistant heat insulation module filled in the gap 15 can comprise one or a combination of more of a silicon oxide fiber board, a composite silicate board, ceramic silicon rubber, a heat insulation board containing corundum and titanium silicate nano powder and silicon oxide floccule and hot-pressed melamine foam.
Alternatively, a plurality of the insulating and heat-insulating modules 10 are spaced apart in the length direction of the insulating and heat-insulating module 30, as shown in fig. 3, whereby the structure of the product can be made simpler and the manufacture can be made easier.
In some embodiments of the present invention, the insulating and heat insulating module 10 may further have a blind hole 16 or a through hole 16, so as to reduce the cost and the product weight, and achieve the purpose of light weight and high efficiency of the product. Preferably, the blind hole 16 and the through hole 16 are filled with a pressure-resistant heat insulating module, whereby the compression resistance of the flame-retardant heat insulating panel 100 in the thickness direction can be improved. The blind hole 16 is a groove structure provided on one side surface of the insulating and heat insulating module 10, the blind hole 16 does not penetrate through the thickness of the insulating and heat insulating module 10, and the through hole 16 is a hole through which the through hole 16 penetrates in the thickness direction of the insulating and heat insulating module 10.
Both the blind hole 16 and the through hole 16 may be provided in the insulating and heat insulating module 10, or only the blind hole 16 may be provided in the insulating and heat insulating module 10, or only the through hole 16 may be provided in the insulating and heat insulating module 10.
In some embodiments of the present invention, the blind hole 16 or the through hole 16 is a closed hole, that is, the edge of the blind hole 16 or the through hole 16 is located inside the product of the insulating and heat insulating module 10.
Alternatively, as shown in fig. 4 and 5, the shape of the blind hole 16 or the through hole 16 includes at least one of a circle, an ellipse, and a polygon, or a combination of a plurality of them, thereby making the structure of the product more diversified and adapting to the actual needs of the product.
Preferably, the blind holes 16 or the through holes 16 may include a plurality of blind holes 16 or through holes 16 arranged at intervals along the length or width direction of the insulating and flame-retardant module 30. Different numbers of blind holes 16 or through-holes 16 can thus be provided as required.
As shown in fig. 4, the plurality of blind holes 16 or through holes 16 may be circular, the plurality of circular blind holes 16 or through holes 16 are spaced apart along the length direction of the insulating and flame-retardant module 30, and the plurality of circular blind holes 16 or through holes 16 may have the same or different sizes.
As shown in fig. 5, the blind holes 16 or the through holes 16 may be elongated and each extend along the length direction of the insulating and flame-retardant module 30, and a plurality of elongated blind holes 16 or through holes 16 are spaced apart along the width direction of the insulating and flame-retardant module 30.
In some embodiments of the present invention, a gap 21 is formed between the insulating and heat insulating module 10 and the adjacent high-strength insulating and flame-retardant module 20, as shown in fig. 2-7, so that the insulating and heat insulating module 10 and the adjacent high-strength insulating and flame-retardant module 20 are not tightly pressed close to each other, thereby not only improving the positioning and mounting ability between the two, but also providing a deformation space between the two when the product is subjected to high temperature, and further improving the deformation resistance of the whole flame-retardant partition board.
In some embodiments of the present invention, at least a portion of the gap 21 is formed in an arc shape, or at least a portion of the gap 21 is formed in a tooth shape. Therefore, the shape of the gap 21 can be utilized, when the flame-retardant partition board is assembled, the positioning effect between the insulating heat insulation module 10 and the adjacent high-strength insulating flame-retardant module 20 is improved, the insulating heat insulation module 10 and the adjacent high-strength insulating flame-retardant module 20 are matched to be connected, certain strength can be provided between the insulating heat insulation module 10 and the high-strength insulating flame-retardant module 20, and the bending performance of the flame-retardant heat insulation board 100 and the twisting performance in the length direction can be improved.
Specifically, as shown in fig. 6, the left and right sides of the insulating and heat insulating module 10 are provided with concave portions 11 that are concave inward, and the side of the high-strength insulating and flame-retardant module 20 facing the insulating and heat insulating module 10 is provided with convex portions 22 that are convex outward, and the concave portions 11 and the convex portions 22 are engaged, whereby the gap 21 between the insulating and heat insulating module 10 and the adjacent high-strength insulating and flame-retardant module 20 has an arc-shaped portion after being mounted in place.
Alternatively, as shown in fig. 6, the opposite sides of the high-strength insulating and flame-retardant module 20 are provided with the protrusions 22, so that the structure of the high-strength insulating and flame-retardant module 20 can be symmetrical, and the product molding is facilitated.
As shown in fig. 7, in other embodiments of the present invention, the left and right sides of the insulating and heat insulating module 10 are provided with a plurality of teeth 12 protruding inwards, one side of the high-strength insulating and flame-retardant module 20 facing the insulating and heat insulating module 10 is provided with a plurality of tooth grooves 23 protruding inwards, and the plurality of teeth 12 and the plurality of tooth grooves 23 are matched in a one-to-one correspondence. Whereby the gap 21 between the insulating thermal insulation module 10 and the adjacent high-strength insulating flame-retardant module 20 has a serrated portion after being mounted in place. In the example shown in fig. 7, the tooth profile has a rectangular tooth shape, but the tooth profile may have a tooth structure having another shape such as a triangular tooth shape.
As shown in fig. 1 to 7, a first through hole 24 is formed on the high-strength insulating and flame-retardant module 20, a second through hole 31 is formed on each of the two insulating and flame-retardant modules 30, and the second through hole 31 corresponds to the first through hole 24. The second through hole 31 corresponds to the first through hole 24, that is, the second through hole 31 corresponds to the first through hole 24 in shape, quantity and position, so that the first through hole 24 and the second through hole 31 are arranged, and the flame-retardant heat-insulating plate 100 can be conveniently installed, that is, the flame-retardant heat-insulating plate 100 can be conveniently positioned and installed by using the first through hole 24 and the second through hole 31, and the flame-retardant heat-insulating plate 100 can be conveniently positioned and fixed on the cell stack 200.
A battery module 1000 according to an embodiment of a second aspect of the present invention, which includes a cell stack 200 and a flame-retardant and heat-insulating plate 100, at least one side of the cell stack 200 being provided with the flame-retardant and heat-insulating plate 100, is described below with reference to fig. 8 to 9. Because according to the utility model discloses fire-retardant heat insulating board 100 has above-mentioned profitable technological effect, consequently also has corresponding technological effect through the battery module 1000 that sets up this fire-retardant heat insulating board 100, promptly according to the utility model discloses battery module 1000 has higher intensity, has good compressive resistance, and battery module 1000's security and wholeness are good.
Specifically, according to the utility model discloses in the battery module 1000 of the embodiment, battery stack 200 includes a plurality of electric cores 201, and fire-retardant heat insulating board 100 includes two, and both sides around battery stack 200 are located respectively to two fire-retardant heat insulating boards 100, and wherein the length of fire-retardant heat insulating board 100 is not less than the length of battery stack 200, and the width of fire-retardant heat insulating board 100 is not less than the width of battery stack 200.
According to the utility model discloses battery module 1000, both sides all set up as above embodiment around the battery stack 200 fire-retardant heat insulating board 100, thereby can carry out good protection to battery stack 200, guarantee that battery stack 200 when burning or high temperature in inside, fire-retardant heat insulating board 100 through the rise is fire-retardant, thermal-insulated, and this battery stack 200's both sides all set up fire-retardant heat insulating board 100, the size that can make battery stack 200's relative both sides can effectively be guaranteed, can be with the product structural stability who guarantees battery module 1000, and can make things convenient for battery module 1000 installation and location on the vehicle, the product is more level and more smooth.
Preferably, as shown in fig. 8, the battery module 1000 further includes: the flame-retardant heat-insulating top plate 300 is formed in a hollow structure, the flame-retardant heat-insulating top plate 300 covers the top of the cell stack 200, and the flame-retardant heat-conducting unit 400 covers the bottom of the cell stack 200. Therefore, the flame-retardant heat-insulating plate 100, the flame-retardant heat-insulating top plate 300 and the flame-retardant heat-conducting unit 400 on the front side and the rear side can be used for completely protecting the periphery of the battery stack 200, so that the safety and the integrity of the whole battery module 1000 are ensured.
Optionally, the flame retardant and heat insulation top plate 300 has flame retardant and heat insulation properties, and the material of the flame retardant and heat insulation top plate 300 may include one or more of mica plate, honeycomb aluminum plate coated with fire retardant coating, silica fiber plate, and corundum-mullite plate.
The flame-retardant and heat-insulating top plate 300 has a hollow structure, and can be insulated and heat-insulated by air inside, so that the overall safety of the battery module 1000 is improved.
Preferably, the flame-retardant and heat-insulating top plate 300 is filled with a high-temperature phase-change heat-absorbing material. Such as aluminum hydroxide, etc., thereby rapidly and effectively absorbing and reducing the temperature of the battery module 1000. Preferably, the bottom wall of the flame-retardant heat-insulating top plate 300 is provided with a third through hole communicated with the cavity thereof, so that when flame or high temperature is generated inside the battery module 1000, the flame or high temperature can rapidly enter the inner cavity of the flame-retardant heat-insulating top plate 300 through the third channel and contact with a high-temperature phase-change heat-absorbing material therein, thereby rapidly reducing the stability, and further ensuring the safety of the battery module 1000.
Preferably, as shown in fig. 8, the battery module 1000 may further include a fire-retardant buffer unit 500, the fire-retardant buffer unit 500 being provided on an outer side of each of the fire-retardant and heat-insulating panels 100. From this can ensure battery module 1000 width direction's dimensional stability, improve battery module 1000's product structural stability, make things convenient for battery module 1000's combination, assemble and install the location moreover. The flame retardant buffer unit 500 may include one or more of PU foam, PI foam, foamed silicone rubber, hot-pressed melamine foam, or pre-oxidized silk aerogel felt coated with mica paper.
A battery pack 2000 according to an embodiment of the third aspect of the present invention is described below with reference to fig. 9 and 10, and the battery pack 2000 includes a battery module 1000 according to the above-described embodiment of the present invention.
Because according to the utility model discloses battery module 1000 has above-mentioned profitable technological effect, consequently has battery package 2000 that foretell battery module 1000 constitutes also to have corresponding beneficial effect, promptly according to the utility model discloses battery package 2000, product stable in structure, the fire resistance is good, the heat-proof quality is strong and insulating excellent.
As shown in fig. 9 and 10, alternatively, the battery module 1000 in the battery pack 2000 includes a plurality of battery modules 1000 arranged at intervals in a first direction parallel to the length direction of the flame-retardant and heat-insulating panel 100, and two adjacent battery modules 1000 in the first direction are connected by a high-strength flame-retardant module 3000. By providing the high-strength flame-retardant module 3000, it is possible to facilitate the connection of two adjacent battery modules 1000. Alternatively, the high-strength flame-retardant module 3000 may be made of the same material as the high-strength insulating flame-retardant module 20, or the high-strength flame-retardant module 3000 may be made of the same product structure as the flame-retardant insulation board 100.
In another optional embodiment of the present invention, the battery module 1000 includes a plurality of battery modules 1000, and the plurality of battery modules 1000 are spaced apart from each other along a second direction perpendicular to the first direction, and along the second direction, the battery modules 1000 are connected by a connecting member passing through the high-strength flame retardant module 3000. Thus, the connection holes 3001 may be provided on the high-strength flame retardant module 3000, so that the arrangement and installation of the battery module 1000 in the second direction may be facilitated.
Other structural features of the battery module 1000 or the battery pack 2000 according to embodiments of the present invention may be conventional and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A flame retardant and insulating panel, comprising:
an insulating and heat insulating module;
the two insulating flame-retardant modules are oppositely arranged and define an installation space, and the insulating heat-insulating module is arranged in the installation space, wherein the length of the insulating flame-retardant module is not less than the length of the insulating heat-insulating module, and the width of the insulating flame-retardant module is not less than the width of the insulating heat-insulating module; wherein
The heat conductivity coefficient of the insulating and heat-insulating module is lower than that of the insulating and flame-retardant module;
the highest heat-resistant temperature of the insulating and flame-retardant module is greater than that of the insulating and heat-insulating module.
2. A fire retardant and insulating panel according to claim 1 wherein the insulating and fire retardant module has a central portion of at least one side edge thereof projecting outwardly, the respective side edge of said insulating and fire retardant module corresponding in shape to the respective side edge of said insulating and fire retardant module.
3. A fire-retardant and heat-insulating panel according to claim 2, wherein one widthwise side edge of said insulating module has a projection at a middle portion in a lengthwise direction of said insulating module.
4. A fire retardant and heat insulating panel according to claim 3, wherein both ends of said projections have inclined extensions.
5. A fire retardant and heat insulating panel according to claim 1, wherein said insulating and heat insulating module comprises a plurality of said insulating and heat insulating modules disposed in spaced apart relation to each other.
6. The flame retardant and heat insulating panel according to claim 5, wherein the gap between two adjacent insulating and heat insulating modules is filled with a pressure resistant and heat insulating module.
7. A fire retardant and heat insulating panel according to claim 5 wherein a plurality of said insulating and heat insulating modules are arranged at intervals along the length of said insulating and heat insulating modules.
8. The flame-retardant and heat-insulating plate according to claim 1, wherein the insulating and heat-insulating module is provided with a blind hole or a through hole, and the blind hole and the through hole are filled with a pressure-resistant and heat-insulating module.
9. The flame retardant and thermal insulation panel according to claim 8, wherein said blind holes or said through holes are closed holes.
10. The flame retardant and heat insulating panel according to claim 8, wherein the shape of the blind hole or the through hole comprises at least one of a circle, an ellipse, a polygon or a combination of a plurality of the circles, the ellipses and the polygons.
11. The flame retardant and heat insulating panel according to claim 8, wherein said blind holes or said through holes comprise a plurality of ones, and a plurality of said blind holes or said through holes are spaced apart in a length or width direction of said insulating and flame retardant module.
12. A battery module, comprising:
a cell stack;
the flame-retardant and heat-insulating plate according to any one of claims 1 to 11, wherein at least one side surface of the cell stack is provided with the flame-retardant and heat-insulating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021571083.7U CN212366119U (en) | 2020-07-31 | 2020-07-31 | Battery module and flame-retardant heat insulation plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021571083.7U CN212366119U (en) | 2020-07-31 | 2020-07-31 | Battery module and flame-retardant heat insulation plate thereof |
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| Publication Number | Publication Date |
|---|---|
| CN212366119U true CN212366119U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021571083.7U Expired - Fee Related CN212366119U (en) | 2020-07-31 | 2020-07-31 | Battery module and flame-retardant heat insulation plate thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834575A (en) * | 2020-07-31 | 2020-10-27 | 昆山宝创新能源科技有限公司 | Battery module and flame-retardant heat insulation plate thereof |
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2020
- 2020-07-31 CN CN202021571083.7U patent/CN212366119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834575A (en) * | 2020-07-31 | 2020-10-27 | 昆山宝创新能源科技有限公司 | Battery module and flame-retardant heat insulation plate thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 Termination date: 20210731 |