CN114665202B - Low-cost battery for electric automobile and assembly process thereof - Google Patents
Low-cost battery for electric automobile and assembly process thereof Download PDFInfo
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- CN114665202B CN114665202B CN202210272827.2A CN202210272827A CN114665202B CN 114665202 B CN114665202 B CN 114665202B CN 202210272827 A CN202210272827 A CN 202210272827A CN 114665202 B CN114665202 B CN 114665202B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 117
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 117
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 230000003139 buffering effect Effects 0.000 claims description 50
- 238000009434 installation Methods 0.000 claims description 43
- 239000004033 plastic Substances 0.000 claims description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 claims description 6
- 210000003746 feather Anatomy 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000004323 axial length Effects 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 description 16
- 238000001514 detection method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- 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
- H01M10/0422—Cells or battery with cylindrical casing
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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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)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides a low-cost battery for an electric automobile and an assembly process thereof, wherein the battery comprises an aluminum shell and a naked battery cell, the naked battery cell is arranged in the aluminum shell, a sealing body is arranged at an opening of the aluminum shell, an inwards concave arc-shaped curved groove is arranged on the sealing body, the aluminum shell is columnar, an aluminum shell flanging part is arranged on the aluminum shell, the aluminum shell flanging part is an inwards concave arc-shaped curved body which surrounds the circumference of the aluminum shell, and the inwards concave arc-shaped curved body is used for being matched with the inwards concave arc-shaped curved groove in shape. The invention can solve the technical problem that the sealing effect of the battery is influenced because the sealing body cannot be tightly attached to the inner wall of the opening part of the battery shell when the axial length of the bare cell is insufficient.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a low-cost battery for an electric automobile and an assembly process thereof.
Background
Along with the continuous improvement of the awareness of people on environment protection and resource saving, the development prospect of the electric automobile is extremely wide, various countries attach importance to the research and development of the electric automobile, increase the research investment on the electric automobile, strive to master the core technology, move at the front of energy conservation, reduce the production cost, preempt the social development and move the way of sustainable development;
the inside from the top down of current battery includes seal and naked electric core in proper order, upwards extrudees the seal through naked electric core, and the seal upwards extrudees battery case oral area inner wall and realizes the sealed of battery, when naked electric core axial length is not enough, will lead to the seal can't closely laminate with battery case oral area inner wall to influence the sealed effect of battery.
Disclosure of Invention
The invention provides a low-cost battery for an electric automobile and an assembly process thereof, which are used for solving the technical problems that the sealing body and a naked battery core are sequentially arranged in the existing battery from top to bottom, the sealing body is upwards extruded by the naked battery core, the sealing body upwards extrudes the inner wall of the opening part of a battery shell to realize the sealing of the battery, and when the axial length of the naked battery core is insufficient, the sealing body cannot be tightly attached to the inner wall of the opening part of the battery shell, so that the sealing effect of the battery is influenced.
In order to solve the technical problem, the invention discloses a low-cost battery for an electric automobile and an assembly process thereof, wherein the low-cost battery comprises an aluminum shell and a naked battery cell, the naked battery cell is arranged in the aluminum shell, a sealing body is arranged at an opening of the aluminum shell, an inwards concave arc-shaped curved surface groove is formed in the sealing body, the aluminum shell is columnar, an aluminum shell flanging part is arranged on the aluminum shell, the aluminum shell flanging part is an inwards concave arc-shaped curved surface body around the circumference of the aluminum shell, and the inwards concave arc-shaped curved surface body is used for being matched with the inwards concave arc-shaped curved surface groove in shape.
Preferably, naked electric core upper end is equipped with the negative pole current collector, naked electric core lower extreme is equipped with anodal current collector.
Preferably, naked electric core both ends are equipped with positive electrode tab and negative pole ear respectively, positive electrode tab with anodal current collector welding, the negative pole ear with negative pole current collector welding.
Preferably, the negative current collecting disc is connected with the cap through a copper nail, one end of the negative current collecting disc of the bare cell is packaged with the aluminum shell through the cap, and one end of the positive current collecting disc of the bare cell is welded with the aluminum shell.
Preferably, the aluminum sheet cover and the sealing rubber are connected through a sealing nail, and the sealing nail and the sealing rubber form a first interference seal.
Preferably, a copper nail penetrates through the sealing rubber, and the copper nail and the sealing rubber form second interference seal.
Preferably, the sealing body is a cover cap, the cover cap comprises an aluminum sheet cover and sealing rubber, the sealing rubber is compressed at the opening of the aluminum shell to form a first seal, and the sealing rubber is extruded at the flanging of the aluminum shell to form a second seal.
Preferably, an aluminum shell installation body is detachably connected to the outside of the aluminum shell, and the aluminum shell installation body is used for connecting the aluminum shell and the electric automobile.
Preferably, the aluminum shell mounting body comprises a mounting frame body, a mounting cavity is formed in the mounting frame body, the aluminum shell is detachably connected in the mounting cavity, a mounting execution assembly is arranged in the mounting frame body and is used for realizing the connection between the aluminum shell and the mounting frame body and the connection between the mounting frame body and the electric vehicle;
the installation executing assembly comprises a main sliding block, the main sliding block is connected in a first sliding groove in the installation frame in a sliding mode, a first wedge block is fixedly connected to the side face of the main sliding block, an extending opening is formed in the installation frame, a T-shaped rod is connected in the extending opening in an up-and-down sliding mode, an adjusting deflector rod is fixedly connected to one end, extending out of the extending opening, of the T-shaped rod, a short rod is fixedly connected to the T-shaped rod, a guide short shaft is fixedly connected to the short rod in a direction perpendicular to the axis direction of the short rod, a guide sliding way is formed in the main sliding block, the guide short shaft is connected in the guide sliding way in a sliding mode, a guide barrel is fixedly connected to the inner wall of the installation frame, a second wedge block is connected in the guide barrel in a sliding mode, an abutting block is fixedly connected to the second wedge block, one end, far away from the second sliding block, of the second wedge block is fixedly connected to an inclined plane, an inclined plane of the first guide block is used for being matched with an inclined plane of the second wedge block in a sliding mode, and an inclined plane of the second wedge block is used for being far away from the inclined plane;
fixedly connected with meshing rack on the double-end wedge, rotate in the installing frame and connect and mesh gear and first bevel gear, meshing gear and first bevel gear are coaxial, it is connected with first pivot, second pivot and lead screw pivot to rotate in the installing frame, it is connected with the second bevel gear to rotate on the first pivot, the second bevel gear with first bevel gear intermeshing, be connected with first drive meshing gear through the feather key in the first pivot, be equipped with first driving piece on the feather key that corresponds on the first drive meshing gear, first driving piece is used for the drive first drive meshing gear is followed first pivot slides, the key connection has second drive meshing gear in the second pivot, second drive meshing gear be used for with first drive meshing gear intermeshing, the key connection has first band pulley in the second pivot, the key connection has the second band pulley in the lead screw pivot, first band pulley with the second band pulley passes through the drive belt connection, threaded connection has lead screw nut in the butt joint, the one end of lead screw joint is kept away from the arc-shaped pivot is stretched into in the installation cavity, and the fixed joint piece is used for the aluminium alloy sheet is carried out to the butt joint housing.
Preferably, an anti-pressure buffering assembly is arranged outside the aluminum shell, the anti-pressure buffering assembly comprises a plastic shell, the plastic shell is cylindrical, a containing hole is formed in the plastic shell, the aluminum shell is installed in the containing hole, sealing rings are arranged at two ends of the containing hole, two sets of L-shaped rod guide grooves which are symmetrically arranged are formed in the plastic shell, L-shaped guide rods are connected in the L-shaped rod guide grooves in a sliding mode, a first elastic part is fixedly connected between the L-shaped guide rods and the L-shaped rod guide grooves, one end, located outside the plastic shell, of each L-shaped guide rod is fixedly connected with an adjusting rack, an adjusting rotating shaft is rotatably connected to the plastic shell, an adjusting gear is in keyed connection with the adjusting rotating shaft and is meshed with the adjusting rack, an installation body is fixedly connected to one end, away from the adjusting rack, of each L-shaped guide rod, is installed in a compensation installation groove of a buffering pad, a second elastic part is fixedly connected in the compensation installation groove, and the buffering pad is arc-shaped;
the buffer cushion is provided with a plurality of plastic bending pieces which are uniformly arranged, one end of each plastic bending piece is fixedly connected with the buffer cushion, one end of each plastic bending piece, which is far away from the buffer cushion, is fixedly connected to the inner wall of the plastic shell, two ends of each plastic bending piece are connected through a third elastic piece, and an auxiliary buffer assembly is arranged between every two adjacent plastic bending pieces;
supplementary buffering subassembly includes the fixed block, the fixed block fixed connection be in plasticity shells inner wall, hinged joint has first connecting rod and second connecting rod on the fixed block, first connecting rod and second connecting rod are kept away from the one end of fixed block hinged joint has first buffering slider and second buffering slider respectively, first buffering slider and second buffering slider sliding connection be in the buffering spout on the blotter, fixedly connected with fourth elastic component and fifth elastic component in the buffering spout, fixedly connected with L type rack respectively on first buffering slider and the second buffering slider, the internal rotation of plasticity shell is connected with the fan pivot, the key joint has fan gear and fan blade in the fan pivot, the fan gear with L type rack intermeshing.
An assembly process comprising the steps of:
the method comprises the following steps: respectively rolling a first tab and a second tab in the bare cell into a positive tab and a negative tab;
step two: welding the positive current collecting disc and the positive lug of the bare cell to form a positive electrode, and welding the negative current collecting disc and the negative lug of the bare cell to form a negative electrode;
step three: penetrating the copper nails through the sealing rubber to form second interference sealing, and assembling the aluminum sheet cover on the sealing rubber to form a cover cap;
step four: welding the negative current collecting disc of the bare cell with a copper nail on the cap, so that the negative electrode is guided to the surface of the cap through the copper nail;
step five: turning over the negative current collecting disc, and turning over the cap by 180 degrees to assemble the cap with the bare cell;
step six: wrapping blue gel on the circumference of the naked battery cell, and then filling the naked battery cell into an aluminum shell;
step seven: compressing the opening part of the aluminum shell to form a flanging part of the aluminum shell;
step eight: welding the bottom of the battery cell to enable the aluminum shell to be electrically connected with the positive current collecting disc, so that the positive electrode is led out of the bottom of the aluminum shell;
step nine: and injecting and forming the battery cell, and installing a sealing nail to form the complete battery cell.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the cap structure of the present invention.
FIG. 2 is a schematic view of an aluminum case structure according to the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A of fig. 2 in accordance with the present invention.
Fig. 5 is a diagram of a first installation step of the present invention.
Fig. 6 is a diagram of a second installation step of the present invention.
Fig. 7 is a schematic structural diagram of the aluminum case mounting body according to the present invention.
FIG. 8 is an enlarged view of a portion of FIG. 7 at E according to the present invention.
FIG. 9 is a schematic view of the structure of the anti-press buffer assembly of the present invention.
FIG. 10 is an enlarged view of a portion of FIG. 9 at B.
Fig. 11 is an enlarged view of a portion of fig. 9 at F according to the present invention.
In the figure: 1. an aluminum sheet cover; 100. capping; 2. sealing the nail; 201. a negative electrode; 202. a positive electrode; 3. sealing rubber; 4. copper nails; 410. an electric core; 411. welding the bottom; 5. a negative current collecting plate; 510. a complete battery cell; 511. flanging the aluminum shell; 512. sealing the first place; 513. sealing at the second place; 514. a first interference seal; 515. a second interference seal; 516. an aluminum sheet cover mounting groove; 6. a naked battery cell; 61. a first tab; 611. a positive tab; 62. a second tab; 621. a negative tab; 7. a positive current collecting plate; 8. an aluminum housing; 9. an aluminum case mounting body; 900. installing a frame body; 9000. a guide chute; 9001. a second guide block; 9002. a second slider; 9003. a connecting rod; 9004. a guide cylinder; 9005. a second wedge block; 9006. mounting a butting block; 9007. meshing the racks; 9008. a meshing gear; 9009. a first bevel gear; 901. installing an execution component; 9010. a main slider; 9011. a first chute; 9012. a first wedge block; 9013. an arc-shaped sheet; 9014. a double-end wedge block; 9015. a T-shaped rod; 9016. adjusting a deflector rod; 9017. an extension port; 9018. a short bar; 9019. a guide short shaft; 902. a first rotating shaft; 9020. a second rotating shaft; 9021. a lead screw shaft; 9022. a second bevel gear; 9023. a first driving engagement gear; 9024. a second driving engagement gear; 9025. a first pulley; 9026. a second pulley; 9027. a transmission belt; 9028. a lead screw nut; 9029. a butt joint shaft; 903. a mounting cavity; 10. a compression-resistant buffer assembly; 1000. a plastic housing; 1001. an accommodation hole; 1002. a seal ring; 1003. an L-shaped rod guide slot; 1004. an L-shaped guide rod; 1005. adjusting the rack; 1006. adjusting the rotating shaft; 1007. an adjusting gear; 1008. a first elastic member; 1009. an installation body; 1010. a cushion pad; 1011. a compensation mounting groove; 1012. a second elastic member; 1013. a plastic bending piece; 1014. a third elastic member; 1015. an auxiliary buffer component; 1016. a fixed block; 1017. a first link; 1018. a second link; 1019. a first cushion slider; 1020. a second buffer slide block; 1021. a buffer chute; 1022. a fourth elastic member; 1023. a fifth elastic member; 1024. an L-shaped rack; 1025. a fan rotating shaft; 1026. a fan gear; 1027. a fan blade; 11. sealing the body; 12. an inner concave arc-shaped curved groove.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to "first", "second", etc. in the present invention are used for descriptive purposes only, do not specifically refer to an order or sequence, and do not limit the present invention, but merely distinguish components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the various embodiments may be combined with each other, but must be based on the realization of the capability of a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides the following examples:
example 1
The embodiment of the invention provides a low-cost battery for an electric automobile and an assembly process thereof, and the low-cost battery comprises an aluminum shell 8 and a naked electric core 6, wherein the naked electric core 6 is arranged in the aluminum shell 8, a sealing body 11 is arranged at an opening of the aluminum shell 8, an inwards concave arc-shaped curved surface groove 12 is arranged on the sealing body 11, the aluminum shell 8 is columnar, an aluminum shell flanging part 511 is arranged on the aluminum shell 8, the aluminum shell flanging part 511 is an inwards concave arc-shaped curved surface body which surrounds the circumference of the aluminum shell 8, and the inwards concave arc-shaped curved surface body is used for being matched with the inwards concave arc-shaped curved surface groove 12 in shape.
Preferably, the sealing body 11 is a cap 100, the cap 100 includes an aluminum sheet cover 1 and a sealing rubber 3, the sealing rubber 3 is compressed at the mouth of the aluminum shell 8 to form a first seal 512, and the sealing rubber 3 is pressed at the flanging 511 of the aluminum shell to form a second seal 513.
Preferably, a negative current collecting plate 5 is arranged at the upper end of the naked electric core 6, and a positive current collecting plate 7 is arranged at the lower end of the naked electric core 6;
two ends of the bare cell 6 are respectively provided with a positive tab 611 and a negative tab 621, the positive tab 611 is welded with the positive current collecting plate 7, and the negative tab 621 is welded with the negative current collecting plate 5;
the negative current collecting disc 5 is connected with the cover cap 100 through a copper nail 4, one end of the negative current collecting disc 5 of the bare cell 6 is packaged with the aluminum shell 8 through the cover cap 100, and one end of the positive current collecting disc 7 of the bare cell 6 is welded with the aluminum shell 8;
the aluminum sheet cover 1 is connected with the sealing rubber 3 through a sealing nail 2, and the sealing nail 2 and the sealing rubber 3 form a first interference seal 514;
the copper nail 4 penetrates through the sealing rubber 3, and the copper nail 4 and the sealing rubber 3 form a second interference seal 515.
An assembly process comprising the steps of:
the method comprises the following steps: rolling a first tab 61 and a second tab 62 in the bare cell 6 into a positive tab 611 and a negative tab 621 respectively;
step two: welding the positive current collecting disc 7 and the positive lug 611 of the bare cell 6 to form a positive electrode 202, and welding the negative current collecting disc 5 and the negative lug 621 of the bare cell 6 to form a negative electrode 201;
step three: passing the copper nail 4 through the sealing rubber 3 and forming a second interference seal 515, fitting the aluminum sheet cover 1 onto the sealing rubber 3, forming the cap 100;
step four: welding the negative current collecting disc 5 of the bare cell 6 with a copper nail 4 on the cap 100, so that the negative electrode is guided to the surface of the cap 100 through the copper nail 4;
step five: the negative current collecting plate 5 is turned over, and the cap 100 is turned over for 180 degrees and assembled with the bare cell 6;
step six: wrapping blue gel on the circumference of the naked electric core 6, and then loading the naked electric core into an aluminum shell 8;
step seven: compressing the opening of the aluminum shell 8 to form an aluminum shell flanging 511;
step eight: welding 411 the bottom of the battery cell 410 to electrically connect the aluminum shell 8 with the positive current collecting disc 7, so as to lead the positive electrode out of the bottom of the aluminum shell 8;
step nine: and injecting and forming the battery cell 410, and installing the sealing nail 2 to form a complete battery cell 510.
The working principle and the beneficial effects of the technical scheme are as follows: the invention solves the technical problems that the existing battery comprises a sealing body and a naked electric core from top to bottom in sequence, the sealing body is upwards extruded through the naked electric core, the sealing body upwards extrudes the inner wall of the opening part of the battery shell to realize the sealing of the battery, and when the axial length of the naked electric core is insufficient, the sealing body cannot be tightly attached to the inner wall of the opening part of the battery shell, so that the sealing effect of the battery is influenced;
because 8 oral area compression sealing rubber 3 of aluminum hull forms first department and seals 512, and aluminum hull turn-ups department 511 extrusion sealing rubber 3 forms the sealed 513 of second department, when naked electric core 6 internal pressure is too big, the gas can act on under the effect of atmospheric pressure sealing rubber 3 makes sealing rubber 3 warp thereby with gap increase between the aluminum hull 8 to make the naked electric core 6 of gas discharge play the effect of pressure release, avoid because of the emergence of the too big condition that leads to the battery explosion of atmospheric pressure, under the stable condition of naked electric core 6 internal pressure, first department seal 512 with the sealed 513 of second department can avoid the emergence of naked electric core 6 weeping phenomenon again, adopts block 100 encapsulation to replace explosion-proof valve encapsulation, when the encapsulation effect is unchangeable, has reduced the manufacturing cost of battery.
Example 2
On the basis of the embodiment 1, the aluminum shell mounting body 9 includes a mounting frame 900, a mounting cavity 903 is provided in the mounting frame 900, the aluminum shell 8 is detachably connected in the mounting cavity 903, a mounting executing component 901 is provided in the mounting frame 900, and the mounting executing component 901 is used for realizing connection between the aluminum shell 8 and the mounting frame 900 and connection between the mounting frame 900 and the electric vehicle;
the installation executing assembly 901 comprises a main sliding block 9010, the main sliding block 9010 is connected to a first sliding groove 9011 in the installation frame 900 in a sliding manner, a first wedge-shaped block 9012 is fixedly connected to the side face of the main sliding block 9010, an extension opening 9017 is formed in the installation frame 900, a T-shaped rod 9015 is connected to the extension opening 9017 in a vertical sliding manner, an adjusting shift lever 9016 is fixedly connected to one end, extending out of the extension opening 9017, of the T-shaped rod 9015, a short rod 9018 is fixedly connected to the T-shaped rod 9015, a guide short shaft 9019 is fixedly connected to the short rod 9018 in a direction perpendicular to the axial direction of the short rod 9018, a guide slide way 9000 is formed in the main sliding block 9010, the guide short shaft 9019 is connected to the guide slide way 9000 in a sliding manner, and a guide barrel 9004 is fixedly connected to the inner wall of the installation frame 900, the guide sleeve 9004 is connected with a second wedge block 9005 in a sliding manner, the second wedge block 9005 is fixedly connected with a mounting abutting block 9006, the mounting abutting block 9006 is used for abutting against the inner wall of a battery mounting groove on an electric automobile, the mounting frame 900 is internally and fixedly connected with a second guide block 9001, the second guide block 9001 is connected with a second slide block 9002 in a sliding manner, the second slide block 9002 is fixedly connected with a connecting rod 9003, one end, far away from the second slide block 9002, of the connecting rod 9003 is fixedly connected with a double-end wedge block 9014, an inclined plane at one end of the double-end wedge block 9014 is used for being matched with an inclined plane on the first wedge block 9012, and an inclined plane at the other end of the double-end wedge block 9014 is used for being matched with an inclined plane, far away from the mounting abutting block 9006, of the second wedge block 9005;
the double-end wedge-shaped block 9014 is fixedly connected with a meshing rack 9007, the mounting frame 900 is rotatably connected with a meshing gear 9008 and a first bevel gear 9009, the meshing gear 9008 and the first bevel gear 9009 are coaxial, the mounting frame 900 is rotatably connected with a first rotating shaft 902, a second rotating shaft 9020 and a screw rotating shaft 9021, the first rotating shaft 902 is rotatably connected with a second bevel gear 9022, the second bevel gear 9022 is mutually meshed with the first bevel gear 9009, the first rotating shaft 902 is connected with a first driving meshing gear 9023 through a sliding key, a corresponding sliding key on the first driving meshing gear 9023 is provided with a first driving part, the first driving meshing gear 9023 is used for driving the first driving meshing gear 9023 to slide along the first rotating shaft 902, the second rotating shaft 9020 is connected with a second driving meshing gear 9024, the second driving meshing gear 9024 is used for mutually meshing with the first driving meshing gear 9023, the second rotating shaft 9020 is connected with a first belt wheel 9025, the screw rotating shaft 9021 is connected with a second driving screw 9026, one end of the screw shaft 9029 is connected with an arc-shaped screw shaft 9027, and a screw shaft 9021 is connected with an aluminum clamping nut, and a screw, and a belt 9013 is connected with a screw fitting plate, and a screw, the screw 9021, and a screw clamp 9021 is connected with an arc-shaped screw.
The working principle and the beneficial effects of the technical scheme are as follows: when the aluminum shell 8 is installed, the aluminum shell 8 is placed into the installation cavity 903, and then the adjusting shift lever 9016 is manually shifted, so that the T-shaped rod 9015 slides along the extension opening 9017, the T-shaped rod slides to drive the short rod 9018 to move, so that the short guide shaft 9019 slides along the guide slide way 9000, so that the main slide block 9010 slides along the installation frame 900, so that the first wedge-shaped block 9012 pushes the double-end wedge-shaped block 9014 to move towards the second wedge-shaped block 9005, and the double-end wedge-shaped block 9014 moves towards the second wedge-shaped block 9005 to push the second wedge-shaped block 9005 to drive the installation abutting block 9006 to extend outwards to abut against the inner wall of the battery installation groove on the electric vehicle;
while the first driving member drives the first driving engagement gear 9023 to slide along the first rotating shaft 902, so that the first driving engagement gear 9023 and the second driving engagement gear 9024 are engaged with each other, and the engaging rack 9007 is driven to move along with the movement of the double-end wedge-shaped block 9014, the engaging rack 9007 moves to drive the engaging gear 9008 to rotate, the engaging gear 9008 rotates to drive the first bevel gear 9009 to rotate, the first bevel gear 9009 rotates to drive the second bevel gear 9022 to rotate, the second bevel gear 9022 rotates to drive the first rotating shaft 902 to rotate, the first rotating shaft 902 rotates to drive the first driving meshing gear 9023 to rotate, the first driving meshing gear 9023 rotates to drive the second driving meshing gear 9024 to rotate, the second driving meshing gear 9024 rotates to drive the second rotating shaft 9020 to rotate, the second rotating shaft 9020 rotates to drive the first belt wheel 9025 to rotate, the first belt wheel 9025 rotates to drive the transmission belt 9027 to transmit, the transmission belt 9027 drives the second belt wheel 9026 to rotate, the second belt wheel 9026 rotates to drive the screw rod rotating shaft 9021 to rotate, the screw rotating shaft 9021 rotates to drive the screw nut 9028 to transmit along the screw rotating shaft 9021, the lead screw nut 9028 moves to drive the abutting shaft 9029 to extend out, the abutting shaft 9029 extends out to drive the arc-shaped piece 9013 to clamp the aluminum shell 8, finally, the aluminum shell 8 is installed completely, the aluminum shell installation body 9 is designed to enable the aluminum shell 8 to be installed more quickly and conveniently, and the aluminum case mounting body 9 can simultaneously realize the connection between the aluminum case 8 and the mounting frame body 900 and the abutment between the mounting frame body 900 and the inner wall of the battery mounting groove on the electric vehicle.
Example 3
On the basis of embodiment 1 or 2, an anti-pressure buffer assembly 10 is arranged outside the aluminum shell 8, the anti-pressure buffer assembly 10 includes a plastic shell 1000, the plastic shell 1000 is cylindrical, a receiving hole 1001 is formed in the plastic shell 1000, the aluminum shell 8 is installed in the receiving hole 1001, seal rings 1002 are arranged at two ends of the receiving hole 1001, two sets of L-shaped rod guide slots 1003 which are symmetrically arranged are formed in the plastic shell 1000, an L-shaped guide rod 1004 is slidably connected to the L-shaped rod guide slots 1003, a first elastic member 1008 is fixedly connected between the L-shaped guide rod 1004 and the L-shaped rod guide slots 1003, an adjusting rack 1005 is fixedly connected to one end of the L-shaped guide rod 1004 which is located outside the plastic shell 1000, an adjusting rotating shaft 1006 is rotatably connected to the plastic shell 1000, an adjusting gear 1007 is keyed to the adjusting rotating shaft 1006, the adjusting gear 1007 is engaged with the adjusting rack 1005, an installation body 1009 is fixedly connected to one end of the L-shaped guide rod 1004 which is far away from the adjusting rack 1005, the installation body is installed in a compensation installation groove 1011 of the buffering pad 1010, a second elastic member 1012 is fixedly connected in the compensation installation groove 1011, and the buffering pad 1010 is arc-shaped buffering pad 1010;
a plurality of plastic bending sheets 1013 which are uniformly arranged are arranged on the cushion 1010, one end of each plastic bending sheet 1013 is fixedly connected with the cushion 1010, one end of each plastic bending sheet 1013 away from the cushion 1010 is fixedly connected with the inner wall of the plastic shell 1000, two ends of each plastic bending sheet 1013 are connected through a third elastic piece 1014, and an auxiliary buffer component 1015 is arranged between every two adjacent plastic bending sheets 1013;
the auxiliary buffering assembly 1015 comprises a fixing block 1016, wherein the fixing block 1016 is fixedly connected to the inner wall of the plastic housing 1000, a first connecting rod 1017 and a second connecting rod 1018 are hinged to the fixing block 1016, one ends of the first connecting rod 1017 and the second connecting rod 1018, which are far away from the fixing block 1016, are respectively hinged to a first buffering slide block 1019 and a second buffering slide block 1020, the first buffering slide block 1019 and the second buffering slide block 1020 are slidably connected to a buffering slide groove 1021 of the buffering cushion 1010, a fourth elastic member 1022 and a fifth elastic member 1023 are fixedly connected to the buffering slide groove 1021, L-shaped toothed bars 1024 are respectively fixedly connected to the first buffering slide block 1019 and the second buffering slide block 1020, a fan rotating shaft 1025 is rotatably connected to the plastic housing 1000, a fan gear 1026 and fan blades 1027 are connected to the fan rotating shaft 1025, and the fan gear 1026 and the L-shaped toothed bars 1024 are mutually engaged.
The working principle and the beneficial effects of the technical scheme are as follows: when the anti-pressure buffering assembly 10 is sleeved on the aluminum shell 8 in use, the sealing ring 1002 is attached to the outer wall of the aluminum shell 8, then the adjusting gear 1007 is manually rotated, the adjusting gear 1007 rotates to drive the adjusting rack 1005 to move, the adjusting rack 1005 moves to drive the L-shaped guide rod 1004 to move, the L-shaped guide rod 1004 moves to drive the buffering pad 1010 to move, so that the buffering pad 1010 is attached to the aluminum shell 8, when the plastic shell 1000 is extruded, the fixing block 1016 drives the first connecting rod 1017 and the second connecting rod 1018 to move, the first connecting rod 1017 and the second connecting rod 1018 move to drive the first buffering slider 1019 and the second buffering slider 1020 to slide along the buffering chute 1021, and the first buffering slider 1019 and the second buffering slider 1020 slide along the buffering chute 1021 until the first buffering slider 1019 and the fourth buffering slider 1022 collide with the fourth elastic element 1022, meanwhile, when the second buffer sliding block 1020 collides with the fifth elastic part 1023, the kinetic energy of the collision is converted into the elastic potential energy of the fourth elastic part 1022 and the fifth elastic part 1023, so as to reduce the extrusion of the aluminum housing 8 caused by external collision, the design of the anti-pressure buffer assembly 10 avoids the leakage caused by the extrusion of the aluminum housing 8 by external force, and ensures the safe use of the battery, the first buffer sliding block 1019 and the second buffer sliding block 1020 slide to drive the L-shaped rack 1024 to move, the L-shaped rack 1024 moves to drive the fan gear 1026 to rotate, the fan gear 1026 rotates to drive the fan rotating shaft 1025 to rotate, the fan rotating shaft 1025 rotates to drive the fan blades 1027 to rotate, and the fan blades 1027 rotate to dissipate heat of the battery, to increase the useful life of the battery.
Example 4
On the basis of embodiment 1, the method further comprises the following steps:
the battery energy storage detection system is used for detecting the energy storage capacity of the battery and giving an alarm when the energy storage capacity of the battery is insufficient:
the battery energy storage detection system includes:
a first temperature sensor provided on the battery for detecting a temperature of the battery;
the timer is arranged on the battery and used for detecting the total charging time of the battery;
the second temperature sensor is arranged on the electric automobile and used for detecting the temperature of the external environment;
a current sensor disposed on the battery for detecting an actual charging current of the battery;
a voltage sensor disposed on the battery for detecting an actual charging voltage of the battery;
controller, alarm, the controller with first temperature sensor the second temperature sensor the time-recorder the current sensor voltage sensor with the alarm electricity is connected, the controller is based on first temperature sensor the second temperature sensor the time-recorder the current sensor with voltage sensor control the alarm is reported to the police, based on following step:
the method comprises the following steps: calculating the actual energy consumption inside the battery during the charging process based on the first temperature sensor, the second temperature sensor, the timer, the current sensor, the voltage sensor and equation (1):
wherein Q is w In order to actually consume energy inside the battery during charging,
is the specific heat capacity of the battery, M is the mass of the battery, T max Is the maximum value, T, detected by the first temperature sensor min Is the minimum value detected by the first temperature sensor, T is the detection value of the timer, pi is the circumference ratio and is 3.14, r is the radius of the battery, h is the height of the battery, T is the height of the battery 1 Is a detected value of the second temperature sensor,
ln is logarithm based on e, I is the detected value of the current sensor, U is the detected value of the voltage sensor, I is the convective heat transfer thermal resistance of the battery 0 A predetermined charging current, U, for the battery 0 A preset charging voltage for the battery;
step two: calculating the actual energy storage efficiency of the battery based on the current sensor, the voltage sensor, the timer, step one and equation (2):
wherein η is the actual energy storage efficiency of the battery, Q 0 The method comprises the following steps of taking a theoretical storage energy value of the battery, taking lambda as an energy storage capacity coefficient of the battery, wherein the lambda is 0.82-0.93, taking e as a natural number, taking e as 2.71, and taking th as a preset service life of the battery;
step three: the controller compares the actual energy storage efficiency of the battery with the preset energy storage efficiency of the battery, and if the actual energy storage efficiency of the battery is smaller than the actual energy storage efficiency of the battery, the controller controls the alarm to give an alarm.
The working principle and the beneficial effects of the technical scheme are as follows: the battery energy storage detection system calculates the actual energy consumption in the charging process of the battery based on the first temperature sensor, the second temperature sensor, the timer, the current sensor, the voltage sensor and a formula (1), calculates the actual energy storage efficiency of the battery based on the current sensor, the voltage sensor, the timer, the first step and the formula (2), and finally, the controller compares the actual energy storage efficiency of the battery with the preset energy storage efficiency of the battery w Meanwhile, the ratio of the preset service life th of the battery to the total charging time t of the battery is introduced, so that the calculation result is more accurate, and the use reliability of the battery energy storage detection system is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A low-cost battery for an electric automobile is characterized by comprising an aluminum shell and a naked electric core, wherein the naked electric core is arranged in the aluminum shell, a sealing body is arranged at an opening of the aluminum shell, an inwards concave arc-shaped curved surface groove is formed in the sealing body, the aluminum shell is columnar, an aluminum shell flanging position is arranged on the aluminum shell, the aluminum shell flanging position is an inwards concave arc-shaped curved surface body which surrounds the circumferential direction of the aluminum shell, and the inwards concave arc-shaped curved surface body is used for being matched with the inwards concave arc-shaped curved surface groove in shape;
the battery comprises an aluminum shell mounting body, the aluminum shell mounting body is detachably connected outside the aluminum shell, and the aluminum shell mounting body is used for connecting the aluminum shell and the electric automobile;
the aluminum shell installation body comprises an installation frame body, an installation cavity is formed in the installation frame body, the aluminum shell is detachably connected in the installation cavity, an installation execution assembly is arranged in the installation frame body and used for realizing the connection between the aluminum shell and the installation frame body and the connection between the installation frame body and the electric automobile;
the installation executing assembly comprises a main sliding block, the main sliding block is connected in a first sliding groove in the installation frame in a sliding mode, a first wedge block is fixedly connected to the side face of the main sliding block, an extending opening is formed in the installation frame, a T-shaped rod is connected in the extending opening in an up-and-down sliding mode, an adjusting deflector rod is fixedly connected to one end, extending out of the extending opening, of the T-shaped rod, a short rod is fixedly connected to the T-shaped rod, a guide short shaft is fixedly connected to the short rod in a direction perpendicular to the axis direction of the short rod, a guide sliding way is formed in the main sliding block, the guide short shaft is connected in the guide sliding way in a sliding mode, a guide barrel is fixedly connected to the inner wall of the installation frame, a second wedge block is connected in the guide barrel in a sliding mode, an abutting block is fixedly connected to the second wedge block, one end, far away from the second sliding block, of the second wedge block is fixedly connected to an inclined plane, an inclined plane of the first guide block is used for being matched with an inclined plane of the second wedge block in a sliding mode, and an inclined plane of the second wedge block is used for being far away from the inclined plane;
fixedly connected with meshing rack on the double-end wedge, rotate in the installing frame and connect and mesh gear and first bevel gear, meshing gear and first bevel gear are coaxial, it is connected with first pivot, second pivot and lead screw pivot to rotate in the installing frame, it is connected with the second bevel gear to rotate on the first pivot, the second bevel gear with first bevel gear intermeshing, be connected with first drive meshing gear through the feather key in the first pivot, be equipped with first driving piece on the feather key that corresponds on the first drive meshing gear, first driving piece is used for the drive first drive meshing gear is followed first pivot slides, the key connection has second drive meshing gear in the second pivot, second drive meshing gear be used for with first drive meshing gear intermeshing, the key connection has first band pulley in the second pivot, the key connection has the second band pulley in the lead screw pivot, first band pulley with the second band pulley passes through the drive belt and connects, threaded connection has lead screw nut in the lead screw nut fixedly connected in the butt joint axle, the one end of lead screw shaft is kept away from the one end of lead screw pivot is stretched in the installing shaft, and the aluminium lug is connected with the butt joint shell carries out the butt joint piece.
2. The low-cost battery for the electric automobile according to claim 1, wherein a negative current collecting plate is arranged at the upper end of the bare cell, and a positive current collecting plate is arranged at the lower end of the bare cell.
3. The low-cost battery for the electric automobile according to claim 2, wherein a positive tab and a negative tab are respectively arranged at two ends of the bare cell, the positive tab is welded with the positive current collecting plate, and the negative tab is welded with the negative current collecting plate.
4. The low-cost battery for the electric automobile according to claim 2, wherein the negative current collecting plate is connected with the cap through a copper nail, one end of the negative current collecting plate of the bare cell is packaged with the aluminum case through the cap, and one end of the positive current collecting plate of the bare cell is welded with the aluminum case.
5. The low-cost battery for the electric vehicle according to claim 1, wherein the aluminum sheet cover and the sealing rubber are connected by a sealing nail, and the sealing nail and the sealing rubber form a first interference seal;
the sealing rubber is penetrated with a copper nail, and the copper nail and the sealing rubber form second interference sealing.
6. The low-cost battery for the electric automobile according to claim 1, wherein the sealing body is a cap, the cap comprises an aluminum sheet cover and sealing rubber, the sealing rubber is compressed at the opening part of the aluminum shell to form a first seal, and the sealing rubber is extruded at the flanging part of the aluminum shell to form a second seal.
7. The low-cost battery for the electric automobile according to claim 1, wherein an anti-pressure buffering assembly is arranged outside the aluminum shell, the anti-pressure buffering assembly comprises a plastic shell, the plastic shell is cylindrical, a containing hole is formed in the plastic shell, the aluminum shell is installed in the containing hole, sealing rings are arranged at two ends of the containing hole, two sets of L-shaped rod guide grooves which are symmetrically arranged are formed in the plastic shell, an L-shaped guide rod is slidably connected in the L-shaped rod guide grooves, a first elastic piece is fixedly connected between the L-shaped guide rod and the L-shaped rod guide grooves, an adjusting rack is fixedly connected to one end, located outside the plastic shell, of the L-shaped guide rod, an adjusting rotating shaft is rotatably connected to the plastic shell, an adjusting gear is connected to the adjusting rotating shaft in a keyed mode, the adjusting gear is meshed with the adjusting rack, an installation body is fixedly connected to one end, away from the adjusting rack, of the installation body is installed in a compensation installation groove of the buffering pad, a second elastic piece is fixedly connected to the compensation installation groove, and the buffering pad is arc-shaped;
the buffer cushion is provided with a plurality of plastic bending pieces which are uniformly arranged, one end of each plastic bending piece is fixedly connected with the buffer cushion, one end of each plastic bending piece, which is far away from the buffer cushion, is fixedly connected to the inner wall of the plastic shell, two ends of each plastic bending piece are connected through a third elastic piece, and an auxiliary buffer assembly is arranged between every two adjacent plastic bending pieces;
supplementary buffering subassembly includes the fixed block, the fixed block fixed connection be in plasticity shells inner wall, hinged joint has first connecting rod and second connecting rod on the fixed block, first connecting rod and second connecting rod are kept away from the one end of fixed block hinged joint has first buffering slider and second buffering slider respectively, first buffering slider and second buffering slider sliding connection be in the buffering spout on the blotter, fixedly connected with fourth elastic component and fifth elastic component in the buffering spout, fixedly connected with L type rack respectively on first buffering slider and the second buffering slider, the internal rotation of plasticity shell is connected with the fan pivot, the key joint has fan gear and fan blade in the fan pivot, the fan gear with L type rack intermeshing.
8. An assembly process for assembling a low cost battery for electric vehicles as claimed in any one of claims 1 to 7, comprising the steps of:
the method comprises the following steps: respectively rolling a first tab and a second tab in the bare cell into a positive tab and a negative tab;
step two: welding the positive current collecting disc and the positive lug of the bare cell to form a positive electrode, and welding the negative current collecting disc and the negative lug of the bare cell to form a negative electrode;
step three: penetrating the copper nails through the sealing rubber to form second interference seal, and assembling the aluminum sheet cover on the sealing rubber to form a cover cap;
step four: welding the negative current collecting disc of the bare cell with a copper nail on the cap, so that the negative electrode is guided to the surface of the cap through the copper nail;
step five: turning over the negative current collecting plate, and turning over the cap by 180 degrees to assemble with the bare cell;
step six: wrapping blue gel on the circumference of the naked battery cell, and then filling the naked battery cell into an aluminum shell;
step seven: compressing the opening of the aluminum shell to form a flanging position of the aluminum shell;
step eight: welding the bottom of the battery cell to enable the aluminum shell to be electrically connected with the positive current collecting disc, so that the positive electrode is led out of the bottom of the aluminum shell;
step nine: and injecting liquid into the battery cell, forming the battery cell, and installing a sealing nail to form the complete battery cell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210272827.2A CN114665202B (en) | 2022-03-18 | 2022-03-18 | Low-cost battery for electric automobile and assembly process thereof |
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| CN202210272827.2A CN114665202B (en) | 2022-03-18 | 2022-03-18 | Low-cost battery for electric automobile and assembly process thereof |
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| CN108511645B (en) * | 2018-03-30 | 2021-06-22 | 杨胜 | Battery pack of pure electric vehicle |
| CN108638820A (en) * | 2018-05-28 | 2018-10-12 | 义乌市丰庆科技有限公司 | A kind of novel power battery device and its application method |
| CN211150619U (en) * | 2019-12-05 | 2020-07-31 | 蓝途新能源电动车(扬州)有限公司 | Sightseeing vehicle battery outer box with automatic constant temperature adjusting function |
| CN111584777A (en) * | 2020-04-30 | 2020-08-25 | 安徽绿沃循环能源科技有限公司 | Echelon utilization battery pack with good shock resistance |
| CN111509302A (en) * | 2020-05-29 | 2020-08-07 | 广州鹏辉能源科技股份有限公司 | Cylindrical power battery and assembling method thereof |
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