CN115172968A - Battery pack and manufacturing method thereof - Google Patents
Battery pack and manufacturing method thereof Download PDFInfo
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- CN115172968A CN115172968A CN202210649524.8A CN202210649524A CN115172968A CN 115172968 A CN115172968 A CN 115172968A CN 202210649524 A CN202210649524 A CN 202210649524A CN 115172968 A CN115172968 A CN 115172968A
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- heat conduction
- heat
- support frame
- conducting
- battery
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 45
- 230000000694 effects Effects 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000003292 glue Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery pack and a manufacturing method thereof, wherein the battery pack is provided with a heat-conducting support frame; one side of each heat conduction support frame in the Z-axis direction is abutted against the bottom of the battery box, and the other side of each heat conduction support frame in the Z-axis direction is abutted against the box cover; one side of each heat conduction support frame in the Y-axis direction is provided with a heat conduction cell module which abuts against the inner side of the battery box; the other side of each heat conduction support frame in the Y-axis direction is provided with an accommodating groove, and the accommodating grooves of the two heat conduction support frames are arranged oppositely; the extrusion column is embedded into the two accommodating grooves; a plurality of holding cavities that link up with the holding tank have all been seted up to heat conduction support frame X axle direction both sides, and the activity of respectively holding the intracavity is equipped with the heat conduction sliding block, and heat conduction sliding block one side is supported and is linked to the extrusion post, and heat conduction sliding block opposite side is supported and is linked to the battery box inboard. According to the invention, zero-clearance assembly between the heat-conducting battery cell module and the battery box can be realized in the X-axis direction, the Y-axis direction and the Z-axis direction, and the battery pack with high mechanical strength and good heat conductivity is obtained.
Description
Technical Field
The invention relates to a battery pack and a manufacturing method thereof, and belongs to the technical field of battery packs.
Background
The lithium battery pack of the present electric motorcycle is composed of a Battery Management System (BMS), a battery box, a battery cell module and other electrical components.
Need fix the battery cell module in the battery box according to XYZ three direction, the battery cell module just can be in the tight fit state in the battery box, satisfies the mechanical relevant strength requirement. In practical application, the installation of tight fit state can lead to the assembly difficulty, has the fit clearance between electric core module and the battery box, if the fit clearance too big leads to can not be with the complete spacing of electric core module in the battery box, then has the risk that mechanical correlation intensity became invalid, for example test failure such as extrusion, impact and vibration.
The heat treatment of the battery cell module generally adopts a heat conduction mode, and the heat is conducted out of an external battery box. In the application, adopt attached heat conduction pad to carry out the heat conduction, because the heat conduction pad needs zero clearance assembly just can satisfy predetermined effect, during the practical application, there is the fit-up gap between electric core module and the battery box, consequently, the heat conduction effect can't reach the anticipated effect.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a battery pack and a manufacturing method thereof, which can realize zero-gap assembly between a heat-conducting cell module and a battery box in the X-axis direction, the Y-axis direction and the Z-axis direction, and obtain the battery pack with high mechanical strength and good heat conductivity.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the invention provides a battery pack which comprises a box cover, a battery box, two heat-conducting support frames, an extrusion column, a heat-conducting sliding block and two oppositely-arranged heat-conducting electric core modules;
the box cover is arranged on the battery box, and two heat conduction support frames which are arranged oppositely are arranged in the battery box;
one side of each heat-conducting support frame in the Z-axis direction is abutted against the bottom of the battery box, and the other side of each heat-conducting support frame in the Z-axis direction is abutted against the box cover;
one side of each heat conduction support frame in the Y-axis direction is provided with a heat conduction cell module, and the heat conduction cell module is abutted against the inner side of the battery box;
the other side of each heat conduction support frame in the Y-axis direction is provided with an accommodating groove, and the accommodating grooves of the two heat conduction support frames are arranged oppositely;
one side of each extrusion column is embedded into the containing groove of one heat-conducting support frame, the other side of each extrusion column is embedded into the containing groove of the other heat-conducting support frame, and a filler is filled in gaps between the containing grooves and the extrusion columns;
the heat conduction support frame X axle direction both sides all set up a plurality of and the holding chamber that link up of holding tank, respectively hold the intracavity activity and be equipped with the heat conduction sliding block, and heat conduction sliding block one side is to linking the extrusion post, and heat conduction sliding block opposite side is to linking the battery box inboard.
Further, the heat conduction support frame comprises a support frame body and two heat conduction pads I;
two heat conduction pads I set up respectively in support frame body Z axle direction both sides, wherein, a slice heat conduction pad I is to linking battery box bottom, and another slice heat conduction pad I is to linking the case lid.
Further, the heat conduction sliding block comprises a heat conduction pad II and a sliding block body;
be equipped with heat conduction pad II on the sliding block body, heat conduction pad II is to linking to the battery box inboard.
Further, the heat-conducting cell module comprises a cell module body and two heat-conducting insulating pads;
the two heat conduction insulating pads are respectively arranged on two sides of the Y-axis direction of the battery cell module body, one heat conduction insulating pad abuts against the heat conduction support frame, and the other heat conduction insulating pad abuts against the inner side of the battery box.
Further, the extrusion columns are arranged oppositely, wherein the number of the extrusion columns is 2,2.
Further, the battery box bottom and the box cover inner side are both provided with cushion pads, and the cushion pads are connected with the heat conduction battery cell module in a propping manner.
Further, the battery pack comprises a heat conducting pad III, an L-shaped mounting plate and a BMS;
l type mounting panel one side is equipped with BMS, and L type mounting panel opposite side is equipped with heat conduction pad III, and heat conduction pad III is installed on a heat conduction support frame.
In another aspect, the present invention provides a method for manufacturing a battery pack, including the steps of:
respectively installing two heat conduction battery cell modules on two heat conduction support frames to obtain two modules;
after each heat conduction sliding block is embedded into the corresponding containing cavity, the two modules are placed into the battery box, so that the containing grooves of the two heat conduction support frames are oppositely arranged;
inserting the extrusion column into two holding tanks which are arranged oppositely, wherein one side of the extrusion column is embedded into the holding tank of one heat conduction support frame, and the other side of the extrusion column is embedded into the holding tank of the other heat conduction support frame, so that one side of each heat conduction sliding block abuts against the extrusion column, the other side of each heat conduction sliding block abuts against the inner side of the battery box, one side of each heat conduction cell module abuts against the heat conduction support frame, and the other side of each heat conduction cell module abuts against the inner side of the battery box;
filling gaps between the accommodating grooves and the extrusion columns with filling agents;
the box cover is installed on the battery box, so that the two sides of the heat conduction support frame in the Z-axis direction are respectively abutted to the box cover and the bottom of the battery box.
Further, the filler includes a thermally conductive glue.
Furthermore, one side of the extrusion column is mounted on one heat-conducting support frame through a fastener, and the other side of the extrusion column is mounted on the other heat-conducting support frame through a fastener.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, zero-clearance assembly between the heat-conducting cell module and the battery box can be realized in the X-axis direction, the Y-axis direction and the Z-axis direction by arranging the heat-conducting support frame, the extrusion column and the heat-conducting sliding block, uniform heat conduction of six surfaces of the battery box can be realized, and in addition, when the battery pack is extruded, the six surfaces of the battery box have strong support performance; the invention realizes the manufacture of the battery pack with zero assembly clearance by using low-cost materials and a simple process, obtains the battery pack with high mechanical strength and good heat conductivity, and is suitable for popularization and use.
Drawings
Fig. 1 is an exploded view showing the structure of one embodiment of a battery pack according to the present invention;
FIG. 2 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a thermally conductive support frame according to an embodiment of the present invention;
in the figure: 2. heat conduction support frame, 3, heat conduction electric core module, 4, heat conduction sliding block, 6, extrusion post, 11, case lid, 12, battery box, 13, blotter, 21, heat conduction pad I, 22, holding tank, 31, heat conduction insulating pad, 41, heat conduction pad II, 51, heat conduction pad III, 52, L type mounting panel, 53, BMS.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
The present embodiment provides a battery pack.
The battery pack comprises a box cover 11, a battery box 12, two heat conduction support frames 2, extrusion columns 6, heat conduction sliding blocks 4 and two heat conduction cell modules 3 which are oppositely arranged, wherein in application, the number of the extrusion columns is 2,2 extrusion columns are oppositely arranged.
Referring to fig. 1, a case cover 11 is installed on a battery case 12, two heat conduction support frames 2 are oppositely arranged in the battery case 12, one side of each heat conduction support frame in the Z-axis direction abuts against the bottom of the battery case, and the other side of each heat conduction support frame in the Z-axis direction abuts against the case cover 11.
In the application, case lid 11, battery box 12 and heat conduction support frame 2 are the aluminum alloy and make, and wherein, the height of heat conduction support frame 2 is the same with the height of battery box 12 for two heat conduction support frames 2 can follow Z axle direction and zero clearance assembly of battery box, not only can improve the heat conductivility of battery package, can also improve the mechanical strength of battery package.
Referring to fig. 1, a heat conduction cell module 3 is installed on one side of each heat conduction support frame in the Y-axis direction, and the heat conduction cell module 3 abuts against the inner side of the battery box.
Referring to fig. 3, the other side of each heat-conducting support frame in the Y-axis direction is provided with an accommodating groove 22, the accommodating grooves 22 of the two heat-conducting support frames are arranged in opposite directions, one side of the extrusion column is embedded into the accommodating groove 22 of one heat-conducting support frame, and the other side of the extrusion column is embedded into the accommodating groove 22 of the other heat-conducting support frame; the gaps between each accommodating groove 22 and the extrusion column 6 are filled with filling agents, and in application, the filling agents are heat-conducting glue; a plurality of holding cavities that link up with holding tank 22 have all been seted up to heat conduction support frame X axle direction both sides, and the activity of respectively holding the intracavity is equipped with heat conduction sliding block 4, and heat conduction sliding block one side is to linking extrusion post 6, and heat conduction sliding block opposite side is to linking the battery box inboard.
In application, the two heat-conducting support frames 2 can extrude and fix the two oppositely-arranged heat-conducting cell modules 3 from the X-axis direction and the Y-axis direction so as to improve the mechanical strength of the battery pack; the extrusion column 6 can extrude the assembly gap between the Y-axis direction of the heat-conducting electric core module and the battery box and the assembly gap between the 4X-axis direction of the heat-conducting sliding block and the battery box, so that zero-gap assembly is realized, and the heat-conducting performance of the battery pack is improved.
According to the invention, zero-clearance assembly between the heat-conducting cell module and the battery box can be realized in the X-axis direction, the Y-axis direction and the Z-axis direction by arranging the heat-conducting support frame, the extrusion column and the heat-conducting sliding block, uniform heat conduction of six surfaces of the battery box can be realized, and in addition, when the battery pack is extruded, the six surfaces of the battery box have strong support performance.
Example 2
On the basis of embodiment 1, this embodiment describes a battery pack in detail.
The battery pack of the present embodiment includes a thermal pad iii 51, an L-shaped mounting plate 52, and a BMS 53.
Referring to fig. 2, one side of the l-shaped mounting plate is provided with a BMS 53, and the other side of the l-shaped mounting plate is provided with a heat conduction pad iii 51, and the heat conduction pad iii 51 is mounted on one heat conduction support frame 2 to guide heat of the BMS to the battery case through the heat conduction support frame 2 made of aluminum.
Referring to fig. 2, the heat-conducting support frame 2 includes a support frame body and two heat-conducting pads i 21.
In using, two heat conduction pads I21 set up respectively in support frame body Z axle direction both sides, and wherein, a slice heat conduction pad I21 supports and links the battery bottom of the case portion, and another slice heat conduction pad I21 supports and links case lid 11 to on exporting the heat of support frame body to battery bottom of the case portion or the case lid through heat conduction pad I21.
Referring to fig. 2, the heat conductive slider 4 includes a heat conductive pad ii 41 and a slider body.
In using, be equipped with thermal pad II 41 on the sliding block body, thermal pad II 41 is to linking the battery box inboard to lead out the heat of sliding block body to the battery box side through thermal pad II 41.
Referring to fig. 2, the heat-conductive cell module 3 includes a cell module body and two heat-conductive insulating pads 31, wherein the cell module body is formed by welding a conventional cell, a bracket and a nickel plate.
In application, the two heat-conducting insulating pads 31 are respectively disposed on two sides of the cell module body in the Y-axis direction. One heat-conducting insulating pad 31 abuts against the heat-conducting support frame, so that heat of the battery cell module body is conducted out of the battery box through the heat-conducting support frame 2; another heat-conducting insulating pad 31 abuts against the inner side of the battery box to conduct the heat of the cell module body to the side surface of the battery box through the heat-conducting insulating pad.
Referring to fig. 1, cushions 13 are disposed on the inner sides of the bottom and the cover of the battery box, and the cushions 13 abut against the heat-conducting cell modules 3 to fill the gaps between the heat-conducting cell modules 3 and the bottom and the cover of the battery box.
Example 3
The embodiment provides a manufacturing method of a battery pack.
The manufacturing method of the battery pack comprises the following steps:
s1, respectively installing two heat conduction cell modules on two heat conduction support frames 2 to obtain two modules;
s2, after each heat conduction sliding block 4 is embedded into the corresponding containing cavity, the two modules are placed into the battery box, and the containing grooves of the two heat conduction supporting frames are oppositely arranged;
s3, inserting the extrusion column 6 into the two oppositely-arranged containing grooves 22, embedding one side of the extrusion column into the containing groove 22 of one heat-conducting support frame, embedding the other side of the extrusion column into the containing groove 22 of the other heat-conducting support frame, enabling one side of each heat-conducting sliding block to abut against the extrusion column 6, enabling the other side of each heat-conducting sliding block to abut against the inner side of the battery box, enabling one side of each heat-conducting cell module to abut against the heat-conducting support frame 2, and enabling the other side of each heat-conducting cell module to abut against the inner side of the battery box;
in application, one side of the extrusion column is installed on one heat-conducting support frame through a fastener, and the other side of the extrusion column is installed on the other heat-conducting support frame through a fastener.
S4, filling the gap between each accommodating groove 22 and each extrusion column 6 with a filling agent, wherein the filling agent comprises heat-conducting glue in application
S5, the box cover 11 is installed on the battery box 12, so that the two sides of the heat conduction support frame in the Z-axis direction are respectively abutted to the box cover 11 and the bottom of the battery box.
The invention realizes the manufacture of the battery pack with zero assembly clearance by using low-cost materials and simple process, obtains the battery pack with high mechanical strength and good heat conductivity, does not need complex process and special equipment, and is suitable for popularization and use.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (10)
1. A battery pack is characterized by comprising a box cover (11), a battery box (12), two heat-conducting support frames (2), an extrusion column (6), a heat-conducting sliding block (4) and two heat-conducting electric core modules (3) which are oppositely arranged;
the box cover (11) is arranged on the battery box (12), and two heat conduction support frames (2) which are arranged oppositely are arranged in the battery box (12);
one side of each heat conduction support frame in the Z-axis direction is abutted against the bottom of the battery box, and the other side of each heat conduction support frame in the Z-axis direction is abutted against a box cover (11);
one side of each heat conduction support frame in the Y-axis direction is provided with a heat conduction battery cell module (3), and the heat conduction battery cell modules (3) are abutted against the inner side of the battery box;
the other side of each heat conduction support frame in the Y-axis direction is provided with an accommodating groove (22), and the accommodating grooves (22) of the two heat conduction support frames are arranged oppositely;
one side of each extrusion column is embedded into the containing groove (22) of one heat-conducting support frame, the other side of each extrusion column is embedded into the containing groove (22) of the other heat-conducting support frame, and a filler is filled in a gap between each containing groove (22) and each extrusion column (6);
the heat conduction support frame X axle direction both sides all set up a plurality of and holding the chamber that link up with holding tank (22), respectively hold the intracavity activity and be equipped with heat conduction sliding block (4), and heat conduction sliding block one side is to linking extrusion post (6), and heat conduction sliding block opposite side is to linking the battery box inboard.
2. The battery pack according to claim 1, wherein the heat-conducting support frame (2) comprises a support frame body and two heat-conducting pads I (21);
two heat conduction pads I (21) set up respectively in support frame body Z axle direction both sides, wherein, a slice heat conduction pad I (21) support and link battery bottom of the case portion, and another slice heat conduction pad I (21) support and link case lid (11).
3. The battery pack according to claim 1, wherein the heat conductive slider (4) comprises a heat conductive pad ii (41) and a slider body;
and a heat conducting pad II (41) is arranged on the sliding block body, and the heat conducting pad II (41) is abutted to the inner side of the battery box.
4. The battery pack of claim 1, wherein the thermally conductive cell module (3) comprises a cell module body and two thermally conductive insulating pads (31);
the two heat-conducting insulating pads (31) are respectively arranged on two sides of the Y-axis direction of the battery cell module body, wherein one heat-conducting insulating pad (31) is connected with the heat-conducting support frame in a propping mode, and the other heat-conducting insulating pad (31) is connected with the inner side of the battery box in a propping mode.
5. The battery pack of claim 1, wherein the number of crush posts is 2,2, and the crush posts are disposed opposite each other.
6. The battery pack according to claim 1, wherein the bottom of the battery box and the inner side of the box cover are provided with buffer pads (13), and the buffer pads (13) are abutted against the heat-conducting cell modules (3).
7. The battery pack according to claim 1, comprising a heat conductive pad iii (51), an L-shaped mounting plate (52), and a BMS (53);
l type mounting panel one side is equipped with BMS (53), and L type mounting panel opposite side is equipped with thermal pad III (51), and thermal pad III (51) are installed on a heat conduction support frame (2).
8. The manufacturing method of the battery pack is characterized by comprising the following steps of:
respectively installing the two heat conduction battery cell modules on the two heat conduction support frames (2) to obtain two modules;
after each heat conduction sliding block (4) is embedded into the corresponding containing cavity, the two modules are placed into the battery box, so that the containing grooves of the two heat conduction supporting frames are oppositely arranged;
inserting the extrusion column (6) into two holding grooves (22) which are arranged in opposite directions, embedding one side of the extrusion column into the holding groove (22) of one heat conduction support frame, embedding the other side of the extrusion column into the holding groove (22) of the other heat conduction support frame, enabling one side of each heat conduction sliding block to abut against the extrusion column (6), enabling the other side of each heat conduction sliding block to abut against the inner side of the battery box, enabling one side of each heat conduction electric core module to abut against the heat conduction support frame (2), and enabling the other side of each heat conduction electric core module to abut against the inner side of the battery box;
filling gaps between the accommodating grooves (22) and the extrusion columns (6) with a filling agent;
the box cover (11) is installed on the battery box (12), so that two sides of the heat conduction support frame in the Z-axis direction are respectively abutted to the box cover (11) and the bottom of the battery box.
9. The method of manufacturing a battery pack according to claim 8, wherein the filler includes a thermally conductive adhesive.
10. The method of claim 8, wherein the extruded column is attached to one of the thermally conductive supports by fasteners and attached to the other thermally conductive support by fasteners.
Priority Applications (1)
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| CN208738393U (en) * | 2018-09-13 | 2019-04-12 | 福建云众动力科技有限公司 | A kind of lithium battery mould group radiator structure |
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| CN213150866U (en) * | 2020-08-31 | 2021-05-07 | 恒大新能源技术(深圳)有限公司 | Battery module and battery pack |
| CN214013042U (en) * | 2020-10-13 | 2021-08-20 | 速珂智能科技（上海）有限公司 | Electric vehicle with lithium batteries dynamically connected in parallel in real time |
| CN214706032U (en) * | 2020-12-25 | 2021-11-12 | 苏州凯毅斯智能驱动技术有限公司 | Battery pack structure with heat dissipation device |
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Patent Citations (5)
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| CN208738393U (en) * | 2018-09-13 | 2019-04-12 | 福建云众动力科技有限公司 | A kind of lithium battery mould group radiator structure |
| CN211125754U (en) * | 2019-12-30 | 2020-07-28 | 苏州凯毅斯智能驱动技术有限公司 | Battery pack heat conduction device and battery pack |
| CN213150866U (en) * | 2020-08-31 | 2021-05-07 | 恒大新能源技术(深圳)有限公司 | Battery module and battery pack |
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