CN116470198A - Battery top cover, battery with battery top cover and electricity utilization device - Google Patents
Battery top cover, battery with battery top cover and electricity utilization device Download PDFInfo
- Publication number
- CN116470198A CN116470198A CN202310661821.9A CN202310661821A CN116470198A CN 116470198 A CN116470198 A CN 116470198A CN 202310661821 A CN202310661821 A CN 202310661821A CN 116470198 A CN116470198 A CN 116470198A
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- Prior art keywords
- top cover
- pole
- battery
- upper plastic
- plastic
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- 230000005611 electricity Effects 0.000 title description 2
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 36
- 125000006850 spacer group Chemical group 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- 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
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
- H01M50/155—Lids or covers characterised by the material
- H01M50/16—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/164—Lids or covers characterised by the material having a layered structure
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The embodiment of the invention provides a battery top cover, a battery with the battery top cover and an electric device. The battery top cover comprises a top cover plate, a pole column, upper plastic and a mortise and tenon piece. The top cover plate is provided with a pole hole, the pole is laid on the pole hole, the upper plastic is provided with a limiting hole, a part of the pole is penetrated in the limiting hole, and a part of the upper plastic is pressed on the pole; the mortise and tenon joint piece is arranged on the top cover plate and the upper plastic body in a penetrating mode so as to achieve mortise joint between the upper plastic body and the top cover plate. Therefore, the battery top cover according to the embodiment of the invention has the advantages of improving the assembly efficiency, reducing the assembly cost and improving the energy density of the battery cell.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery top cover, a battery with the battery top cover and an electric device.
Background
The lithium ion battery as a novel secondary battery has the advantages of high energy density and power density, long cycle life, good safety, environmental protection and the like, and has wide application prospect in the aspects of portable electric appliances, electric tools, large energy storage, electric traffic power sources and the like. The battery top cover is mostly assembled by adopting processes such as injection molding, welding or riveting.
In the related art, the battery top cover comprises a first pole column, a second pole column, an upper plastic, a sealing ring, a lower plastic, a fixing ring and a top cover plate, wherein the fixing ring is welded on the top cover plate, and the problems of complex processing procedures and high assembly cost are caused due to the fact that the number of related parts is large.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present invention provide a battery top cover. The battery top cover has the advantages of improving the assembly efficiency, reducing the assembly cost and improving the energy density of the battery core.
The embodiment of the invention also provides a battery.
The embodiment of the invention also provides an electric device.
The battery top cover comprises a top cover plate, a pole column, upper plastic and a mortise and tenon piece.
The top cover plate is provided with a pole hole, and the pole is laid on the pole hole; the upper plastic is provided with a limiting hole, a part of the pole is penetrated in the limiting hole, and a part of the upper plastic is pressed on the pole; the mortise and tenon joint piece is arranged on the top cover plate and the upper plastic body in a penetrating mode so as to achieve mortise joint between the upper plastic body and the top cover plate.
According to the battery top cover, the tenon-and-mortise parts are arranged on the top cover plate and the upper plastic body in a penetrating mode so that the upper plastic body and the top cover plate are in tenon joint, and therefore the upper plastic body is fixed to the pole, and the upper plastic body and the pole are not required to be fixed through the welding ring. Specifically, when assembling, put the lamina tecti first, then place utmost point post and last plastic, compress tightly with corresponding tool, make last plastic and lamina tecti penetrate mortise and tenon spare after coaxial setting. The battery top cover does not need to be provided with the riveting block for fixing the pole, so that the problem of occupation of the space of the battery core due to the arrangement of the riveting block is solved, the height of the battery core is improved, and the battery top cover has the advantage of improving the energy density of the battery core. Meanwhile, the riveting step of the pole post and the riveting block can be reduced, and the mounting step and the assembly cost of the battery top cover are simplified. Therefore, the assembly efficiency of the battery top cover is further improved.
The battery top cover provided by the embodiment of the invention has the advantages of improving the assembly efficiency, reducing the assembly cost and improving the energy density of the battery core.
In some embodiments, a limiting ring groove is defined between the upper plastic and the top cover plate, and the pole is provided with a limiting ring protrusion, and the limiting ring protrusion is arranged in the limiting ring groove.
In some embodiments, the upper plastic is in a cover shape, the upper plastic comprises a positioning plate body and a limiting ring sleeve extending from the periphery of the positioning plate body towards the direction covering the pole, the positioning plate body is provided with a limiting hole, the mortise and tenon joint part is arranged on the limiting ring sleeve in a penetrating mode, a limiting ring groove is defined between the positioning plate body and the top cover plate, the positioning plate body is in compression joint with the pole, and one end of the limiting ring sleeve is in butt joint with the top cover plate.
In some embodiments, one of an anti-rotation protrusion and an anti-rotation groove is formed on the inner wall surface of the limiting collar, the other of the anti-rotation protrusion and the anti-rotation groove is formed on the limiting collar protrusion, and the anti-rotation protrusion is clamped in the anti-rotation groove.
In some embodiments, the anti-rotation protrusions and the anti-rotation grooves are all multiple, the multiple anti-rotation protrusions are arranged on the inner wall surface of the limiting collar at intervals along the circumferential direction of the limiting collar, and the multiple anti-rotation grooves are arranged on the edge of the limiting collar at intervals along the circumferential direction of the limiting collar.
In some embodiments, the cross-sectional area of the stop collar increases from the locating plate body to a direction proximate to the top cover plate to form a flare shape of the stop collar.
In some embodiments, the pole includes a pole body and a stop collar plate extending outward along an outer peripheral wall of the pole body, the stop collar plate is connected to a region between two ends of the pole body in a length direction, and a portion of the upper plastic is pressed on the stop collar plate.
In some embodiments, the mortise and tenon members are obliquely penetrated through the upper plastic and the top cover plate relative to the thickness direction of the battery top cover.
In some embodiments, the mortise and tenon members are provided in plurality, and the mortise and tenon members are penetrated on the top cover plate and the upper plastic body at intervals along the circumferential direction of the pole hole.
In some embodiments, the battery top cover further comprises an insulating blocking member, and the insulating blocking member is disposed on a portion of the upper plastic through which the mortise and tenon members are provided.
In some embodiments, the top cover plate comprises a top cover body and a protruding portion, the protruding portion protrudes along the inner wall of the pole hole towards a direction close to the upper plastic, the upper plastic is sleeved on the protruding portion, the upper plastic can abut against the top cover body, and the mortise and tenon piece is arranged on the protruding portion in a penetrating mode.
In some embodiments, the top cover plate further comprises a lower plastic attached on a side of the top cover body remote from the upper plastic, the lower plastic having a lower plastic hole and a plastic ring protrusion protruding along an inner wall surface of the lower plastic hole, the plastic ring protrusion penetrating within the pole hole.
In some embodiments, the battery top cover further comprises a sealing ring, the sealing ring comprises a sealing ring body and a sealing spacer portion extending along the thickness direction of the battery top cover along the inner wall surface of the sealing ring body, the sealing spacer portion and the sealing ring body form a limiting step at the joint, the sealing spacer portion is arranged on the inner wall surface of the pole hole, and the sealing ring body is abutted between the top cover plate and the pole.
The battery of the embodiment of the invention comprises an electric core and the battery top cover according to any one of the above, wherein the electric core is electrically connected with the pole.
The power utilization device of the embodiment of the invention comprises the battery.
Drawings
Fig. 1 is a front view of a battery top cover according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of fig. 1 taken along A-A.
Fig. 3 is a front view of a battery top cover according to an embodiment of the present invention.
Fig. 4 is a perspective view of a pole according to an embodiment of the present invention.
FIG. 5 is a perspective view of an upper plastic in accordance with an embodiment of the present invention.
Reference numerals:
a battery top cover 100;
a top cover plate 1; a top cover body 11; a boss 12; a post hole 13;
a pole 2; a post body 21; a retainer ring plate 22; an anti-rotation groove 23;
applying plastic 3; a positioning plate 31; a stop collar 32; a limiting hole 33; an anti-rotation protrusion 34;
mortise and tenon joint part 4;
a limit ring groove 5;
an insulating block 6;
a lower plastic 7; a lower plastic hole 71; a plastic ring protrusion 72;
a seal ring 8; a seal ring 81; sealing the cup portion 82.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The battery top cover 100 and the battery and the power using device having the battery top cover 100 according to the embodiment of the present invention are described below with reference to fig. 1 to 5.
The battery top cover 100 of the embodiment of the invention comprises a top cover plate 1, a pole post 2, an upper plastic 3 and a mortise and tenon part 4.
The top cover plate 1 is provided with a pole hole 13, the pole 2 is laid on the pole hole 13, the upper plastic 3 is provided with a limit hole 33, a part of the pole 2 is penetrated in the limit hole 33, a part of the upper plastic 3 is pressed on the pole 2, and the mortise and tenon joint part 4 is penetrated on the top cover plate 1 and the upper plastic 3 so as to realize mortise joint of the upper plastic 3 and the top cover plate.
According to the battery top cover 100 of the embodiment of the invention, a part of the upper plastic 3 is pressed on the pole 2, and the mortise and tenon part 4 is arranged on the top cover plate 1 and the upper plastic 3 in a penetrating way so as to realize joggling of the upper plastic 3 and the top cover sheet, thereby realizing fixation of the upper plastic 3 on the pole 2, avoiding the need of using an additionally arranged welding ring to fix the upper plastic 3 and the pole 2, and reducing the assembly cost of the battery top cover 100. Specifically, when assembling, firstly put lamina tecti 1, then place utmost point post 2 and last plastic 3, adopt the tool to compress tightly, make last plastic 3 and lamina tecti 1 coaxial, penetrate mortise and tenon 4 at this moment. The battery top cover 100 does not need to be provided with the riveting block to fix the pole column 2, so that the problem of occupation of the battery core space due to the riveting block is reduced, the height of the battery core is improved, and the battery top cover has the advantage of improving the energy density of the battery core. At the same time, the riveting step of the pole 2 and the riveting block can be reduced, and the mounting step and the assembly cost of the battery top cover 100 are simplified. Thus, the battery top cover 100 of the embodiment of the invention has the advantage of further improving the assembly efficiency of the battery top cover 100.
The battery top cover 100 of the embodiment of the invention has the advantages of improving the assembly efficiency, reducing the assembly cost and improving the energy density of the battery cell.
Specifically, the upper plastic 3 and the top cover plate 1 are both provided with joggle holes, the top cover plate 1 is provided with a first surface and a second surface which are oppositely arranged along the thickness direction of the battery top cover 100, a part of the pole 2 is covered on the pole hole 13, the pole 2 is abutted on the first surface of the top cover plate 1, the pole hole 13 on the top cover plate 1 is provided with two pole holes 13, the two pole holes 13 correspond to two poles (positive pole and negative pole) of the battery top cover 100, and the positive pole and the negative pole are symmetrically arranged.
As shown in fig. 1 and 2, a limiting ring groove 5 is defined between the upper plastic 3 and the top cover plate 1, and a limiting ring protrusion (optionally, a limiting ring plate 22) is arranged on the pole post 2 and is arranged in the limiting ring groove 5.
According to the battery top cover 100 provided by the embodiment of the invention, the limit ring groove 5 is defined between the upper plastic 3 and the top cover plate 1 and is matched with the limit ring projection arranged on the pole 2, so that the pole 2 can be well fixed in the limit ring groove 5, the problem of shaking of the pole 2 during use is prevented, and the stability of installation of the pole 2 can be improved. Thus, the battery top cover 100 of the embodiment of the present invention has an advantage of good structural stability.
As shown in fig. 3 and 5, the upper plastic 3 is in a cover shape, the upper plastic 3 comprises a positioning plate 31 and a limiting ring sleeve 32 extending from the periphery of the positioning plate 31 towards the direction covering the pole 2, a limiting hole 33 is formed in the positioning plate 31, the mortise and tenon joint part 4 is arranged on the limiting ring sleeve 32 in a penetrating manner, a limiting ring groove 5 is defined between the positioning plate 31, the limiting ring sleeve 32 and the top cover plate 1, the positioning plate 31 is in pressure connection with the pole 2, and one end of the limiting ring sleeve 32 is in butt joint with the top cover plate 1.
According to the battery top cover 100 provided by the embodiment of the invention, the positioning plate body 31 can be used for pressing the pole 2, so that the pole 2 is prevented from moving along the thickness direction of the battery top cover 100. Further, the limit collar 32 is used for circumferential limit, so that the problem that the pole 2 is deviated in the use process is prevented. Thus, the stability of the installation of the pole 2 is further improved. Thus, the battery top cover 100 of the embodiment of the invention has the advantages of high assembly convenience and good structural stability.
Alternatively, the upper plastic 3 may be cylindrical or square, or may be polygonal. When being square column or polygonal prism shape, can rely on its shape to fix a position, be favorable to promoting tenon fourth of twelve earthly branches spare 4 and penetrate lamina tecti 1 and go up plastic 3 efficiency.
Alternatively, mortise and tenon 4 may be a steel pin or other metal rod.
As shown in fig. 3 to 5, one of the rotation preventing protrusion 34 and the rotation preventing groove 23 is provided on the inner wall surface of the stop collar 32, and the other one of the rotation preventing protrusion 34 and the rotation preventing groove 23 is provided on the stop collar protrusion, and the rotation preventing protrusion 34 is engaged in the rotation preventing groove 23. In other words, the inner wall surface of the limit collar 32 is provided with an anti-rotation protrusion 34, and the limit collar protrusion is provided with an anti-rotation groove 23; or the inner wall surface of the limit collar 32 is provided with an anti-rotation groove 23, and the limit collar is provided with an anti-rotation protrusion 34.
According to the battery top cover 100 provided by the embodiment of the invention, the limit ring sleeve 32 and the limit ring are provided with the anti-rotation protrusions 34 and the anti-rotation grooves 23, so that the problem that the pole 2 rotates relative to the upper plastic 3 can be prevented. Thereby, the structural stability of the battery top cover 100 is further improved.
Further, as shown in fig. 3 to 5, the rotation preventing protrusions 34 and the rotation preventing grooves 23 are each provided in plurality, the rotation preventing protrusions 34 are provided on the inner wall surface of the spacer collar 32 at intervals in the circumferential direction of the spacer collar 32, and the rotation preventing grooves 23 are provided on the edges of the spacer collar protrusions at intervals in the circumferential direction of the spacer collar 32. Thereby, the problem of rotation of the pole 2 with respect to the upper plastic 3 can be further prevented. Thus, the structural stability of the battery top cover 100 is further improved.
As shown in fig. 3 and 5, the cross-sectional area of the retainer bushing 32 increases from the positioning plate body 31 to the direction approaching the top cover plate 1 so as to form a horn shape of the retainer bushing 32.
According to the battery top cover 100 of the embodiment of the invention, the limiting collar 32 is arranged in a horn shape, and the horn-shaped limiting collar 32 has certain guiding performance. Thus, the battery top cover 100 of the embodiment of the invention has the convenience of improving the installation of the upper plastic 3.
As shown in fig. 3 and 5, the pole 2 includes a pole body 21 and a retainer plate 22 extending outwardly along the outer peripheral wall of the pole body 21, the retainer plate 22 being connected to a region between both ends of the pole body 21 in the longitudinal direction, and a portion of the upper plastic 3 being pressed against the retainer plate 22.
The battery top cover 100 of the embodiment of the present invention is formed by dividing the pole 2 into a pole body 21 and a retainer ring plate 22 extending outwardly along the outer peripheral wall of the pole body 21. Thus, the battery top cover 100 of the embodiment of the invention has the advantages of large abutting surface and good structural stability.
As shown in fig. 2 and 3, the mortise and tenon 4 is obliquely inserted in the upper plastic 3 and the top cover plate 1 with respect to the thickness direction of the battery top cover 100. Therefore, the upper plastic 3 and the top cover plate 1 are obliquely penetrated, and the advantages of proper length and high stability of the structure can be achieved.
As shown in fig. 2 and 3, the mortise and tenon 4 has a plurality of mortise and tenon 4 penetrating the top cover plate 1 and the upper plastic 3 at intervals along the circumferential direction of the pole hole 13. Therefore, the battery top cover 100 of the embodiment of the invention further improves the stability of the mortise connection between the upper plastic 3 and the top cover plate 1.
Alternatively, the mortise and tenon 4 may have a steel pin and steel column structure.
Optionally, the number of mortise and tenon parts 4 can be eight, and when the upper plastic 3 and the top cover plate 1 are rectangular, two mortise and tenon parts 4 are inserted into each side of the upper plastic 3.
The battery top cover 100 according to the embodiment of the invention further comprises an insulating sealing member 6, wherein the insulating sealing member 6 is arranged on the part of the upper plastic 3, through which the mortise and tenon members 4 are penetrated.
According to the battery top cover 100 provided by the embodiment of the invention, the insulating sealing member 6 can prevent the mortise and tenon members 4 from shaking, so that the problem that the mortise and tenon members 4 are separated from the inside is prevented. Thus, the battery top cover 100 of the embodiment of the present invention has the advantage of high overall structural stability.
The insulating closure 6 may be a glue layer. Specifically, during assembly, the plastic 3 is dripped into the hole of the mortise and tenon joint part 4. Thus, the battery top cover 100 of the embodiment of the present invention has an advantage of high convenience in assembly.
Specifically, all be equipped with the mating holes of inserting mortise and tenon fourth of twelve earthly branches spare 4 on going up plastic 3 and the lamina tecti 1, when the mating holes on going up plastic 3 corresponds with the mating holes of lamina tecti 1, penetrate mortise and tenon fourth of twelve earthly branches spare 4 to drip into the mating holes of plastic 3 with the glue film layer and block up mortise and tenon fourth of twelve earthly branches spare 4, so that fix mortise and tenon fourth of twelve earthly branches spare 4.
As shown in fig. 2 and 3, the top cover plate 1 includes a top cover body 11 and a protruding portion 12, the protruding portion 12 protrudes along the inner wall of the pole hole 13 toward a direction close to the upper plastic 3, the upper plastic 3 is sleeved on the protruding portion 12, the upper plastic 3 can be abutted with the top cover body 11, and the mortise and tenon joint part 4 is penetrated on the protruding portion 12.
In the battery top cover 100 according to the embodiment of the invention, the upper plastic 3 is sleeved on the protruding portion 12 of the top cover plate 1, and the protruding portion 12 can limit the upper plastic 3 to prevent the upper plastic 3 from shifting. Thereby, the stability of the structure of the battery top cover 100 is further improved.
Specifically, the stop collar 32 is sleeved on the boss 12.
Further, the outer diameter of the boss 12 increases from the positioning plate 31 to a direction approaching the top cover plate 1 so as to be fitted with a horn-shaped retainer collar 32.
As shown in fig. 2 and 3, the top cover plate 1 further includes a lower plastic 7, the lower plastic 7 being attached to a side of the top cover body 11 remote from the upper plastic 3 (e.g., a lower surface shown in fig. 2), the lower plastic 7 having a lower plastic hole 71 and a plastic ring protrusion 72 protruding along an inner wall surface of the lower plastic hole 71, the plastic ring protrusion 72 penetrating into the pole hole 13.
According to the battery top cover 100 provided by the embodiment of the invention, the plastic ring protrusion 72 of the lower plastic 7 is penetrated into the pole hole 13, so that the position of the lower plastic 7 is limited, and the stability of installation between the lower plastic 7 and the top cover body 11 can be improved.
The battery top cover 100 of the embodiment of the invention further comprises a sealing ring 8, the sealing ring 8 comprises a sealing ring body 81 and a sealing spacer part 82 extending along the thickness direction of the battery top cover 100 along the inner wall surface of the sealing ring body 81, a limiting step is formed at the joint of the sealing spacer part 82 and the sealing ring body 81, the sealing spacer part 82 is arranged on the inner wall surface of the pole hole 13, and the sealing ring body 81 is abutted between the top cover plate 1 and the pole 2.
According to the battery top cover 100 provided by the embodiment of the invention, the gap between the top cover plate 1 and the pole 2 can be sealed through the sealing ring 8 arranged between the top cover plate 1 and the pole 2, so that the tightness of an internal battery core of the battery is ensured.
Further, the seal ring 8 is provided as a seal ring body 81 and a seal spacer portion 82 extending in the thickness direction of the battery end cover along the inner wall surface of the seal ring body 81. Thus, the battery top cover 100 of the embodiment of the present invention has a further improved sealing effect.
The assembly process is as follows: during assembly, the top cover plate 1 (for example, a light aluminum plate) is firstly placed, then the sealing ring 8 is sleeved on the top cover plate 1, the pole column 2 and the upper plastic 3 are sequentially placed, the upper plastic 3 is pressed by a jig, mortise holes in the upper plastic 3 and the light aluminum plate correspond to each other, at the moment, the mortise and tenon joint parts 4 (for example, steel needles or other bending-resistant parts) are placed, then the insulating sealing parts 6 (glue drops) are arranged in the areas where the mortise and tenon joint parts 4 are arranged to prevent the mortise and tenon joint parts 4 from shaking, then the lower plastic 7 and the top cover plate 1 are subjected to ultrasonic hot melting, and finally the explosion-proof valve protection film is attached.
The battery of the embodiment of the invention comprises an electric core and the battery top cover according to any one of the above, wherein the electric core is electrically connected with the pole. The battery provided by the embodiment of the invention has the advantages of improving the assembly efficiency, reducing the assembly cost and improving the energy density of the battery core.
The power utilization device of the embodiment of the invention comprises the battery. The power utilization device provided by the embodiment of the invention has the advantages of improving the assembly efficiency, reducing the assembly cost and improving the energy density of the battery core.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A battery top cover, comprising:
a top cover plate having a pole bore;
a post laid on the post hole;
the upper plastic is provided with a limiting hole, a part of the pole is penetrated in the limiting hole, and a part of the upper plastic is pressed on the pole;
the mortise and tenon joint piece is penetrated and arranged on the top cover plate and the upper plastic so as to realize the joggling of the upper plastic and the top cover sheet.
2. The battery top cover of claim 1, wherein a limiting ring groove is defined between the upper plastic and the top cover plate, and the pole is provided with a limiting ring protrusion, and the limiting ring protrusion is arranged in the limiting ring groove.
3. The battery top cover according to claim 2, wherein the upper plastic is in a cover shape, the upper plastic comprises a positioning plate body and a limiting ring sleeve extending from the periphery of the positioning plate body towards the direction covering the pole, the positioning plate body is provided with the limiting hole, the mortise and tenon joint part is arranged on the limiting ring sleeve in a penetrating manner, the positioning plate body, the limiting ring sleeve and the top cover plate define a limiting ring groove therebetween, the positioning plate body is in compression joint with the pole, and one end of the limiting ring sleeve is in butt joint with the top cover plate.
4. The battery top cover according to claim 3, wherein one of an anti-rotation protrusion and an anti-rotation groove is formed on an inner wall surface of the limit collar, the other of the anti-rotation protrusion and the anti-rotation groove is formed on the limit collar protrusion, and the anti-rotation protrusion is clamped in the anti-rotation groove.
5. The battery top cover of claim 4, wherein the anti-rotation protrusions and the anti-rotation grooves are each plural, the plural anti-rotation protrusions are disposed on an inner wall surface of the spacer collar at intervals along a circumferential direction of the spacer collar, and the plural anti-rotation grooves are disposed on edges of the spacer collar at intervals along the circumferential direction of the spacer collar.
6. The battery top cover according to claim 3, wherein a cross-sectional area of the retainer bushing increases from the positioning plate body to a direction approaching the top cover plate so as to form a horn shape of the retainer bushing.
7. The battery top cover according to claim 1, wherein the post includes a post body and a retainer ring plate extending outwardly along an outer peripheral wall of the post body, the retainer ring plate being connected to a region between both ends of the post body in a length direction, a portion of the upper plastic being press-fitted to the retainer ring plate;
and/or the mortise and tenon parts are obliquely penetrated on the upper plastic and the top cover plate relative to the thickness direction of the battery top cover;
and/or the mortise and tenon parts are provided with a plurality of mortise and tenon parts, and the mortise and tenon parts are penetrated on the top cover plate and the upper plastic body at intervals along the circumferential direction of the pole hole;
and/or, the battery top cover further comprises an insulating plugging piece, and the insulating plugging piece is arranged on the part of the upper plastic, through which the mortise and tenon pieces are arranged.
8. The battery top cover according to claim 1, wherein the top cover plate comprises a top cover body and a protruding portion, the protruding portion protrudes along the inner wall of the pole hole towards a direction close to the upper plastic, the upper plastic is sleeved on the protruding portion, the upper plastic can be abutted with the top cover body, and the mortise and tenon piece is arranged on the protruding portion in a penetrating mode;
and/or, the top cover plate further comprises a lower plastic attached to one side of the top cover body away from the upper plastic, the lower plastic is provided with a lower plastic hole and a plastic ring protrusion protruding along the inner wall surface of the lower plastic hole, and the plastic ring protrusion is penetrated in the pole hole;
and/or, still include the sealing washer, the sealing washer includes the sealing ring body and follows the internal face of sealing ring body is followed the sealing spacer portion that the thickness direction of battery top cap extends, sealing spacer portion with sealing ring body forms spacing step in the junction, sealing spacer portion sets up on the internal face in utmost point post hole, sealing ring body butt is in between lamina tecti with the utmost point post.
9. A battery comprising a cell and a battery top cap according to any one of claims 1-8, the cell being electrically connected to the post.
10. An electrical device comprising a battery according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310661821.9A CN116470198A (en) | 2023-06-05 | 2023-06-05 | Battery top cover, battery with battery top cover and electricity utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310661821.9A CN116470198A (en) | 2023-06-05 | 2023-06-05 | Battery top cover, battery with battery top cover and electricity utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116470198A true CN116470198A (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310661821.9A Pending CN116470198A (en) | 2023-06-05 | 2023-06-05 | Battery top cover, battery with battery top cover and electricity utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116470198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117399984A (en) * | 2023-12-14 | 2024-01-16 | 苏州明益信智能设备有限公司 | Automatic assembling equipment for power battery cover plate |
-
2023
- 2023-06-05 CN CN202310661821.9A patent/CN116470198A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117399984A (en) * | 2023-12-14 | 2024-01-16 | 苏州明益信智能设备有限公司 | Automatic assembling equipment for power battery cover plate |
| CN117399984B (en) * | 2023-12-14 | 2024-03-19 | 苏州明益信智能设备有限公司 | Automatic assembling equipment for power battery cover plate |
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