CN113506942A - Plastic support and battery pack - Google Patents
Plastic support and battery pack Download PDFInfo
- Publication number
- CN113506942A CN113506942A CN202110385998.1A CN202110385998A CN113506942A CN 113506942 A CN113506942 A CN 113506942A CN 202110385998 A CN202110385998 A CN 202110385998A CN 113506942 A CN113506942 A CN 113506942A
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- Prior art keywords
- shell
- plastic support
- plastic
- electric core
- support
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- 239000000463 material Substances 0.000 claims abstract description 9
- 238000005187 foaming Methods 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 27
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000005267 amalgamation Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/227—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to the technical field of lithium ion batteries, and comprises a plastic support, wherein the plastic support is made of a foaming material and formed by splicing a left half shell and a right half shell, an accommodating cavity for accommodating a battery cell is formed in the two half shells, and a wire harness hole penetrating through the accommodating cavity is formed in the top of the plastic support. Still include a battery package, this battery package includes shell and the top cap that closes the shell to fix a plurality of electric cores through above-mentioned plastic support. Adopt the foamed plastic support can effectively reduce the shared weight proportion of support, consequently, to the battery package of same weight standard, can increase the shared weight proportion of electric core to improve battery package capacity, in addition, the plastic support is located between electric core and the shell, and it both can fix electric core, can play the cushioning effect again, thereby avoid battery package in the use electric core and the inboard condition that can appear friction of casing, striking, finally avoid appearing bad phenomena such as electric core short circuit, fire.
Description
Technical Field
The invention belongs to the technical field of lithium ion batteries, and particularly relates to a plastic support and a battery pack.
Background
The group battery uses the plastic support to fix, and there is the clearance between the shell, and the battery package support in the use and the inboard condition that can appear friction, striking lead to bad such as electric core short circuit, getting on fire. Generally, pouring sealant is used for filling gaps, but the energy density of the battery is greatly reduced due to the use of materials such as the conventional plastic support and the pouring sealant, and for the battery with the same weight specification, the larger the mass specific gravity of the support is, the smaller the specific gravity of the battery cell is, namely, the smaller the battery capacity is.
In addition, the lithium ion battery pack is fixed in a plastic bracket or potting sealant, and then is enclosed in a plastic or metal case. When the battery pack is used at high temperature, the plastic shell is not beneficial to heat dissipation of the battery pack; when the battery pack is used at low temperature, the metal shell dissipates heat quickly and is not beneficial to charge and discharge of the battery core.
Disclosure of Invention
The invention aims to provide a plastic support which is made of light foaming materials, can reduce the weight, can stably fix a battery cell and has good shock absorption performance.
In order to achieve the purpose, the invention provides the following technical scheme: a plastic support is made of foaming materials, and an accommodating cavity for accommodating a battery cell is formed in the plastic support; the plastic support is formed by splicing two half shells, and the battery cell is fixed in the accommodating cavity by splicing the two half shells.
In above-mentioned technical scheme, the plastic support quality of making by expanded material is little, can effectively reduce the proportion of the shared quality of support among the whole battery, and in addition, this plastic support carries out the parcel formula to electric core fixedly, and this can improve the fixity ability to electric core, and simultaneously, its thermal insulation performance can full play to the plastic support, can reduce the thermal diffusion of electric core in winter to keep warm for electric core, thereby make the battery have better charge-discharge environment winter.
Preferably, the half shells are spliced left and right, namely the two half shells have longitudinal splicing surfaces; the splicing surfaces are provided with embedded structures which are embedded with each other, and the two half shells are fixedly spliced by smearing adhesive on the splicing surfaces. The half shell of controlling the amalgamation has good vertical tensile property, promptly, when the plastic support that is equipped with electric core is vertically promoted, the gravity of electric core is all born to two half shells to half shell fracture of amalgamation can be prevented.
Preferably, set up the heating panel in the bottom of plastic support, the lower part of this heating panel leaks in the back of plastic support outward, and upper portion leaks in the bottom in holding chamber outward, and pack into this plastic support with electric core after, electric core bottom contact heating panel.
Preferably, the side wall of the plastic bracket is provided with an injection groove extending downwards from the top. After the plastic support is arranged in the battery shell, a gap is formed between the outer wall of the plastic support and the inner wall of the battery shell inevitably, part of the gap can be filled by injecting adhesive glue into the glue injection groove, and the stability of the plastic support in the battery shell can be improved by means of the adhesive force of the adhesive glue.
Preferably, a waist groove is arranged in the middle of the outer wall of the plastic support and is communicated with the middle of the glue injection groove; and a bottom groove is arranged at the bottom of the plastic support and is communicated with the lower part of the glue injection groove. Under the water conservancy diversion effect of waist groove and kerve, the bonding glue of pouring into through the injecting glue groove can flow to the side and the bottom of plastic support respectively to carry out diversified fixing to plastic support.
Preferably, the heat dissipation plate comprises an upper contact plate and a lower heat dissipation plate, wherein the contact plate is embedded in the bottom of the accommodating cavity, and the heat dissipation plate extends downwards from the contact plate and penetrates through the bottom of the plastic support. The plastic support has the heat preservation effect, but under high temperature environment, the heat of electricity core can give off through the heating panel fast to prevent that the battery thermal runaway, consequently, this plastic support has heat preservation and two kinds of functions of heat dissipation concurrently, and convenience of customers switches the user mode according to specific environment.
Another object of the present invention is to provide a battery pack, in which the housing and the bracket are designed to be light to increase the weight ratio of the battery cell, and the battery pack has good shock resistance.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a battery pack, this battery pack includes shell and the top cap that closes the shell, sets up a plurality of electric cores in the shell, and this electric core is fixed by the inner support. The inner support in the battery pack adopts the plastic support made of the foaming material, adhesive glue is filled in the glue injection groove, the waist groove and the bottom groove, and the inner support is fixed in the shell through the adhesive glue; in addition, only the top of the plastic support is reserved with a wire harness hole for a wire harness to pass through, and the wire harness hole and the wire harness are sealed through a sealant. The battery core, the battery core circuit board and the connecting point are all in a sealed state, and a high waterproof grade is achieved.
In the technical scheme, adopt the plastic support can effectively reduce the shared weight proportion of support, consequently, to the battery package of same weight standard, can increase the shared weight proportion of electric core, thereby improve battery package capacity, in addition, the plastic support is located between electric core and the shell, it both can fix electric core, can play the cushioning effect again, thereby avoid battery package electric core and the inboard condition that can appear the friction of casing in the use, the condition of striking, finally avoid appearing electric core short circuit, bad phenomena such as getting on fire.
Preferably, the bottom of the shell is provided with an avoiding window for communicating the inside and the outside of the shell, and the radiating fins on the back of the radiating plate are opposite to the avoiding window and are positioned in a space surrounded by the avoiding window, so that the radiating fins can be exposed in an external space, and when the battery pack is in a use state, external air flow can take away heat of the radiating fins after flowing through the radiating fins, thereby improving the radiating efficiency.
Preferably, the bottom surface of the shell is provided with the diversion trench, the diversion trench transversely penetrates through the diversion window and then enters the diversion window, the exposed part of the radiating fin can be in full contact with the airflow, and therefore the radiating efficiency is improved.
Preferably, the battery is provided with a heat preservation base matched with the bottom of the shell, after the shell is matched with the heat preservation base, the heat preservation base can at least seal the avoiding window, and in winter, the avoiding window can be plugged by sleeving the heat preservation base on the bottom of the shell, so that the radiating fins are prevented from being exposed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of the overall structure of an embodiment of the plastic stent of the present invention.
Fig. 2 is a bottom structure view of the plastic bracket shown in fig. 1.
Fig. 3 is a schematic structural view of a half-shell of the plastic bracket shown in fig. 1.
Fig. 4 is a schematic view of a disassembled structure of the heat dissipation plate in the plastic bracket shown in fig. 1.
Fig. 5 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.
Fig. 6 is a bottom structure view of the battery pack shown in fig. 5.
Fig. 7 is a structural view illustrating a fixed state of the inner bracket in the outer case of the battery pack shown in fig. 5.
Fig. 8 is a schematic structural view of the battery pack of fig. 5 with a heat-insulating base.
In the figure, a half shell 1, a glue injection groove 2, a waist groove 3, a bottom groove 4, a heat dissipation plate 5, an accommodating cavity 6, a splicing surface 7, an embedding strip 8, an embedding groove 9, an embedding groove 10, a through hole 11, an inner support 20, a top cover 30, a shell 40, an avoidance window 41, a diversion groove 42, fixing glue 43, a heat preservation base 50, a contact plate 51 and a heat dissipation fin 52.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
Fig. 1 to 4 show a plastic bracket according to the present invention, the plastic bracket is made of a foam material, the plastic bracket is formed by splicing a left half shell 1 and a right half shell 1, and an accommodating cavity 6 for accommodating a battery cell is formed inside the two half shells 1 by splicing the two half shells 1, and as shown in fig. 1, only the top of the whole plastic bracket is provided with a wire harness hole penetrating through the accommodating cavity 6, and a wire harness of the battery passes through the wire harness hole.
In particular, the two half-shells 1 have a longitudinal closed-loop mating surface 7; one of the splicing surfaces 1 is provided with a convex embedding strip 8, the other splicing surface 1 is provided with an embedding groove 9 embedded with the embedding strip 8, and the two half shells 1 are fixedly spliced by smearing adhesive on the splicing surfaces 7. Whole plastic support also can adopt the structural design of amalgamation from top to bottom, and because the dynamics of adhereing of bonding glue is limited, the experiment discovery, about half shell 1 of amalgamation have good vertical tensile property, promptly, when the plastic support of electric core is equipped with in vertical promotion, half shell 1 of two all bears the gravity of electric core, this half shell 1 that can effectively avoid the amalgamation is at the removal in-process fracture, both can guarantee plastic support's stability, can guarantee its leakproofness again.
The plastic support made of the foaming material has good heat preservation performance, the plastic support can prevent the temperature of the battery core from being too low in winter, and the battery needs to dissipate heat in summer, and in order to solve the contradiction, the copper heat dissipation plate 5 composed of the contact plate 51 and the heat dissipation fins 52 is arranged at the bottom of the plastic support. Specifically, the inner bottom of the plastic bracket is provided with an embedded groove 10, a contact plate 51 is fixed in the embedded groove 10 by adhesive glue, and a radiating fin 52 arranged on the back of the contact plate 51 passes through the through hole 11 and is exposed out of the bottom of the plastic bracket. Under high temperature environment, the heat of electricity core can distribute through heating panel 5 fast to prevent that the battery thermal runaway, consequently, this plastic support has heat preservation concurrently and dispels the heat two kinds of functions, convenience of customers switches the user mode according to specific environment.
In addition, the plastic support has good deformation performance, after the plastic support is placed in a battery case, the outer wall of the plastic support is in good contact with the inner wall of the battery case, but the possibility of shaking is still unavoidable, in order to avoid the phenomenon, the side wall of the plastic support is provided with the glue injection groove 2 extending downwards from the top, the lower part of the glue injection groove 2 extends along the plastic support and forms a bottom groove 4 at the bottom of the plastic support, and the middle part of the glue injection groove 2 transversely extends along the outer wall of the plastic support to form a waist groove 3. Through injecting the bonding adhesive into injecting glue groove 2, under the water conservancy diversion effect of waist groove 3 and kerve 4, the bonding adhesive that injects through injecting glue groove 2 can flow to the side and the bottom of plastic support respectively to carry out diversified fixing to plastic support.
Compared with the existing bracket, the plastic bracket made of the foaming material has greatly reduced mass, which can effectively reduce the proportion of the bracket in the whole battery, namely, the weight of the battery core can be increased in the battery with the same weight, thereby improving the battery capacity. In addition, this plastic support carries out the parcel formula to electric core fixedly, and this can improve the fixity ability to electric core, and simultaneously, its thermal insulation performance can full play to plastic support, can reduce giving off of electric core heat winter to keep warm for electric core, thereby make the battery have better charge-discharge environment winter, the heating panel 5 that sets up then can dispel the heat to electric core, satisfies summer to the radiating demand of battery.
Based on the above-mentioned plastic support, this embodiment provides a battery package. As shown in fig. 5 to 7, the battery pack includes a housing 40 and a top cover 30 covering the housing 40, the plastic bracket, i.e., the inner bracket 20, is mounted in the housing 40, and a plurality of battery cells are fixed by the inner bracket 20. Adhesive glue is filled in the glue injection groove 2, the waist groove 3 and the bottom groove 4, and the inner support 20 is fixed in the shell 40 through the adhesive glue so as to prevent the inner support 20 from shaking; in addition, only the top of the plastic support is reserved with a through hole for the wire harness to pass through, and the through hole and the wire harness are sealed through a sealant, so that the plastic support can seal an internal battery core, and a waterproof effect is achieved.
Specifically, an escape window 41 for communicating the inside and the outside of the housing is provided at the bottom of the housing 40, the heat dissipation fins 52 on the back surface of the heat dissipation plate 5 are positioned in a space surrounded by the escape window 41 and directly face the escape window 41, and a guide groove 42 is provided on the bottom surface of the housing 40, and the guide groove 42 transversely penetrates through the escape window 41. This allows the exposed portions of the heat dissipation fins 52 to contact the airflow over their entire surfaces, thereby improving heat dissipation efficiency, and further increases the surface area of the bottom of the housing 40 with the guide grooves 42, that is, the contact area of the bottom of the housing 40 with the airflow, thereby further improving heat dissipation efficiency. In winter, the avoidance window 41 can be blocked by sleeving the heat insulation base 50 on the bottom of the shell 40, as shown in fig. 8, so that the heat radiation fins 52 can be prevented from being exposed, and a user can select the heat insulation base 50 according to the situation.
The housing 40 and the top cover 30 can also be made of foam materials, and the two are sealed by using a sealant, so that the waterproof grade of IPX7 can be achieved. And the proportion of the mass occupied by the battery cell in the whole battery can be increased to the maximum extent, so that the weight of the battery cell can be increased as much as possible on the premise of meeting the requirement of the weight of the battery, and the high-capacity battery is obtained.
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A plastic stent, characterized in that: the plastic bracket is made of foaming materials, and an accommodating cavity for accommodating the battery cell is formed in the plastic bracket; the plastic support is formed by splicing two half shells, and the battery cell is fixed in the accommodating cavity by splicing the two half shells.
2. A plastic stent as defined in claim 1, wherein: the half shells are spliced left and right, namely the two half shells are provided with longitudinal splicing surfaces; the splicing surfaces are provided with embedded structures which are embedded with each other, and the two half shells are fixedly spliced by smearing adhesive on the splicing surfaces.
3. A plastic stent as defined in claim 1, wherein: set up the heating panel in the bottom of plastic support, the lower part of this heating panel leaks in the back of plastic support outward, and upper portion leaks in the bottom in holding chamber outward, and pack into this plastic support with electric core after, electric core bottom contact heating panel.
4. A plastic stent as defined in claim 3, wherein: the heat dissipation plate comprises an upper contact plate and a lower heat dissipation plate, wherein the contact plate is embedded into the bottom of the containing cavity, and the heat dissipation plate extends downwards from the contact plate and penetrates through the bottom of the plastic support.
5. A plastic stent as defined in any one of claims 1 to 4, wherein: and the side wall of the plastic bracket is provided with an injection groove extending downwards from the top.
6. A plastic stent as defined in claim 5, wherein: a waist groove is arranged in the middle of the outer wall of the plastic bracket and is communicated with the middle of the glue injection groove; and a bottom groove is arranged at the bottom of the plastic support and is communicated with the lower part of the glue injection groove.
7. The utility model provides a battery pack, this battery pack includes that shell and lid close the top cap of shell, sets up a plurality of electric cores in the shell, and this electric core is fixed by the inner support, its characterized in that: the inner support is the plastic support of claims 1 to 6; adhesive glue is filled in the glue injection groove, the waist groove and the bottom groove, and the adhesive glue is directly contacted with the inner wall of the shell; in addition, only the top of the plastic support is reserved with a wire harness hole for a wire harness to pass through, and the wire harness hole and the wire harness are sealed through a sealant.
8. The battery pack according to claim 7, wherein: the bottom of the shell is provided with an avoidance window which communicates the inside and the outside of the shell, and the radiating fins on the back of the radiating plate are opposite to the avoidance window and are positioned in a space surrounded by the avoidance window.
9. The battery pack according to claim 8, wherein: the bottom surface of the shell is provided with a diversion trench which transversely penetrates through the avoidance window.
10. The battery pack according to claim 8, wherein: this battery set with the bottom complex heat preservation base of shell, after with shell and heat preservation base cooperation, the heat preservation base can be closed dodging the window at least.
Priority Applications (1)
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CN202110385998.1A CN113506942A (en) | 2021-04-09 | 2021-04-09 | Plastic support and battery pack |
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CN202110385998.1A CN113506942A (en) | 2021-04-09 | 2021-04-09 | Plastic support and battery pack |
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CN202110385998.1A Pending CN113506942A (en) | 2021-04-09 | 2021-04-09 | Plastic support and battery pack |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114709535A (en) * | 2022-04-19 | 2022-07-05 | 万向一二三股份公司 | Battery pack shell, battery pack and electric automobile |
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CN206312971U (en) * | 2016-11-30 | 2017-07-07 | 深圳市沃特玛电池有限公司 | A kind of battery mount bracket assembly |
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CN114709535A (en) * | 2022-04-19 | 2022-07-05 | 万向一二三股份公司 | Battery pack shell, battery pack and electric automobile |
CN114709535B (en) * | 2022-04-19 | 2024-02-02 | 万向一二三股份公司 | Battery pack shell, battery pack and electric automobile |
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