CN115441106A - Power battery top cap and battery - Google Patents
Power battery top cap and battery Download PDFInfo
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- CN115441106A CN115441106A CN202211295292.7A CN202211295292A CN115441106A CN 115441106 A CN115441106 A CN 115441106A CN 202211295292 A CN202211295292 A CN 202211295292A CN 115441106 A CN115441106 A CN 115441106A
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- negative pole
- hole
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- groove
- post
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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 of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
Abstract
The invention relates to a power battery top cover and a battery. The power battery top cap includes: the positive electrode assembly and the negative electrode assembly are respectively fixed at two ends of the top cover plate; wherein, one end of the top cover plate is provided with a positive pole mounting hole, and the other end is provided with a negative pole mounting hole; the positive pole assembly comprises a positive pole and a first riveting aluminum block, the first riveting aluminum block is embedded and fixed in a positive pole mounting hole, the positive pole is in a shape like a Chinese character 'ji', a first step is arranged on the periphery of the top of the positive pole, and the positive pole sequentially penetrates through the positive pole mounting hole and a middle through hole of the first riveting aluminum block and is riveted with the first riveting aluminum block through the first step; the installation mode of the negative electrode assembly and the top cover plate is the same as that of the positive electrode assembly and the top cover plate. This scheme has reduced the preparation degree of difficulty of battery top cap and has alleviateed the weight of battery top cap.
Description
Technical Field
The invention relates to the technical field of storage batteries, in particular to a top cover of a power battery and the battery.
Background
At present, with the increasingly prominent environmental problems and the advocated low-carbon economy, new energy automobiles are emerging along with increasingly serious air quality. Manufacturers and consumers are gradually accepting hybrid electric vehicles and pure electric vehicles as representative new energy vehicles. The power battery is used as a main power source of the new energy automobile and becomes one of the core components of the electric automobile. The monomer power battery structure mainly comprises top cap, connection piece, casing and some insulating elements, and naked electric core is connected with the connection piece electricity, and the electric current flows through the connection piece from naked electric core then the positive and negative utmost point post of rethread top cap, carries module or battery package at last. The top cap is as one of the core part in the monomer power battery structure, and its structure is complicated, the cost of manufacture is higher, as the extremely simple utmost point post power battery top cap that discloses in application number 202122099725.9, it is connected through the concave station gomphosis of the insulating heat-insulating ring on the utmost point post, the seal washer with the collar on the top cap piece to remaining space packing between collar and mounting groove has the injection molding, realizes the fixed of utmost point post on the battery top cap.
However, in the conventional pole, top cover and fixing method thereof, the fixing processing method is complicated and the processing cost is high.
Disclosure of Invention
Therefore, it is necessary to provide a top cover of a power battery and a battery for solving the problems of complicated processing and high cost of a pole, the top cover and a fixing method thereof.
A power cell header comprising: the positive electrode assembly and the negative electrode assembly are respectively fixed at two ends of the top cover plate; wherein, one end of the top cover plate is provided with a positive pole mounting hole, and the other end is provided with a negative pole mounting hole;
the positive pole assembly comprises a positive pole and a first riveting aluminum block, the first riveting aluminum block is embedded and fixed in a positive pole mounting hole, the positive pole is in a shape like a Chinese character 'ji', a first step is arranged on the periphery of the top of the positive pole, and the positive pole sequentially penetrates through the positive pole mounting hole and a middle through hole of the first riveting aluminum block and is riveted with the first riveting aluminum block through the first step; and/or the presence of a gas in the gas,
the negative pole subassembly includes negative pole post, second riveting aluminium pig, and the embedding of second riveting aluminium pig is fixed in negative pole post mounting hole, the negative pole post is nearly font, and negative pole post top periphery sets up the third step, the negative pole post passes negative pole post mounting hole and the middle through-hole of second riveting aluminium pig in proper order to rivet through third step and second riveting aluminium pig.
Optionally, the power battery top cap still includes: the top cover plate is overlapped with the lower plastic, the lower plastic is respectively provided with a positive pole sealing hole and a negative pole sealing hole at positions corresponding to the positive pole mounting hole and the negative pole mounting hole, and the positive pole sealing hole and the negative pole sealing hole are embedded into the sealing rings;
the positive pole sequentially penetrates through a sealing ring in the positive pole sealing hole, a positive pole mounting hole and a middle through hole of the first riveting aluminum block and is riveted with the first riveting aluminum block through a first step; and/or the presence of a gas in the atmosphere,
and the negative pole column sequentially penetrates through a sealing ring in the negative pole sealing hole, the negative pole column mounting hole and a middle through hole of the second riveting aluminum block and is riveted with the second riveting aluminum block through a third step.
Optionally, the first riveting aluminum block comprises a first aluminum block and an anode upper plastic, the first aluminum block comprises a sink groove arranged in the middle and a through hole arranged in the middle of the sink groove, the anode upper plastic comprises a sink groove arranged in the middle and a through hole arranged in the middle of the sink groove, the first step of the anode column is matched with the sink groove of the first aluminum block, the first aluminum block is matched with the sink groove of the anode upper plastic, and the anode upper plastic is embedded and fixed in the anode column mounting hole; and/or the presence of a gas in the gas,
the second riveting aluminium pig includes plastic on second aluminium pig and the negative pole, the second aluminium pig includes the heavy groove that the middle part set up and the through-hole that sets up in the middle of the heavy groove, the plastic includes the heavy groove that the middle part set up and the through-hole that sets up in the middle of the heavy groove on the negative pole, and the third step of negative pole post cooperatees with the heavy groove of second aluminium pig, and the heavy groove of plastic cooperatees on second aluminium pig and the negative pole, and the plastic embedding is fixed in the negative pole post mounting hole on the negative pole.
Optionally, the positive post mounting hole includes a first boss, a second boss, a first through hole and a first positive sinking groove, the first boss is located on the periphery of the second boss, the height of the second boss is lower than that of the first boss, the second boss is located on the periphery of the first through hole, the lower surface of the top cover plate is provided with the first positive sinking groove corresponding to the first boss, and the first riveting aluminum block is matched with the second boss; and/or the presence of a gas in the atmosphere,
the negative pole post mounting hole includes that third boss, fourth boss, second through-hole and first negative pole sink the groove, and the third boss is located the periphery of fourth boss, and the fourth boss height is less than the third boss, and the fourth boss is located the periphery of second through-hole, and top cap piece lower surface is equipped with the first negative pole sink groove that corresponds with the third boss, second riveting aluminium pig cooperatees with the fourth boss.
Optionally, the upper surface of the positive post is pressed to form a first groove and a first step; and/or the upper surface of the negative pole is pressed to form a second groove and a third step.
Optionally, the cross section of the first groove and/or the second groove is triangular, trapezoidal, rectangular or semicircular.
Optionally, a third sinking groove is arranged in the middle of the lower surface of the positive pole; and/or a fourth sinking groove is arranged in the middle of the lower surface of the negative pole column.
Optionally, the power battery top cap still includes: and the explosion-proof valve is fixed in the middle of the top cover plate.
Optionally, the top cap piece middle part sets up the exhaust hole, explosion-proof valve includes explosion-proof valve screening glass and explosion-proof piece, the explosion-proof valve screening glass is fixed in directly over the exhaust hole of top cap piece through sticky mode, the explosion-proof piece links firmly under the exhaust hole of top cap piece through welding mode.
Optionally, the distance from the upper surface of the positive post and/or the negative post to the upper surface of the top cover plate is 0mm-8mm.
Optionally, the thickness of the n-shaped top of the positive pole and/or the negative pole is 2mm-6mm.
Optionally, the upper surface of the positive pole and/or the negative pole is circular, racetrack-shaped or rectangular.
Optionally, the positive pole is made of aluminum, and the negative pole is made of copper-aluminum composite board or copper material.
Optionally, the sealing ring is made of fluorine rubber, fluorosilicone rubber or PFA.
Optionally, the plastic material on the positive electrode is PPS plastic, and/or the plastic material on the negative electrode is insulating PPS plastic.
A battery comprises the power battery top cover.
According to the power battery top cover and the battery, the positive pole column and the negative pole column are riveted and fixed with the top cover plate through the riveting aluminum block, and the positive pole column and the negative pole column can be fixed on the top cover plate only through pressing, so that the process complexity can be effectively reduced, and the cost of the top cover can be reduced; and the positive and negative pole column structure is in a shape of a Chinese character ji, the whole thickness is thinner, the weight is lighter, and the weight of the top cover of the battery is lightened, so that the weight of the battery is lightened.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a top cover of a power battery in one embodiment;
FIG. 2 is an exploded view of a top cover of a power cell in one embodiment;
FIG. 3 is a schematic cross-sectional view of one embodiment of a positive electrode assembly secured to a top cover sheet;
FIG. 4 is a schematic cross-sectional view of a negative assembly secured to a top cover sheet in one embodiment;
FIG. 5 is a schematic cross-sectional view of a positive post mounting hole in one embodiment;
FIG. 6 is a schematic cross-sectional view of a negative post mounting hole in one embodiment;
FIG. 7 is a schematic cross-sectional view of a positive post in one embodiment;
FIG. 8 is a schematic cross-sectional view of a negative post according to one embodiment;
FIG. 9 is a schematic cross-sectional view of a first groove of a positive post in one embodiment;
fig. 10 is a schematic cross-sectional view of a first groove of a positive post in another embodiment;
fig. 11 is a schematic cross-sectional view of a first groove of a positive post in another embodiment;
FIG. 12 is a schematic view showing the shape of the upper surface of the positive post in one embodiment;
FIG. 13 is a schematic view showing the shape of the upper surface of a positive electrode post in another embodiment;
FIG. 14 is a schematic view showing the shape of the upper surface of the positive post in one embodiment;
fig. 15 is a schematic view of the overall structure of a battery according to an embodiment.
Reference numerals: 1-a positive electrode assembly; 11-positive pole column; 111-a first step; 112-a first groove; 113-a third sink; 114-a second step; 12-a first riveted aluminum block; 121-a first aluminum block; 122-plastic on the anode; 2-a negative electrode assembly; 21-a negative pole post; 211-third step; 212-a second groove; 213-fourth sink tank; 22-a second riveted aluminum block; 221-a second aluminum block; 222-plastic on the negative electrode; 3-an explosion-proof valve; 31-explosion-proof valve protection sheet; 32-explosion-proof piece; 4-top cover sheet; 41-positive post mounting hole; 411-a first boss; 412-a second boss; 413 — a first via; 414-first positive electrode sink; 42-negative pole post mounting holes; 421-a third boss; 422-a fourth boss; 423 — a second via; 424-first negative sink; 43-vent hole; 8-sealing ring; 9-discharging plastic cement; 91-positive sealing hole; 92-negative sealing of the pores.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
In one embodiment, as shown in fig. 1-4, there is provided a power cell top cover comprising: the cathode assembly 1, the cathode assembly 2 and the top cover plate 4, wherein the cathode assembly 1 and the cathode assembly 2 are respectively fixed at two ends of the top cover plate 4; wherein, one end of the top cover plate 4 is provided with a positive pole mounting hole 41, and the other end is provided with a negative pole mounting hole 42; the positive pole assembly 1 comprises a positive pole 11 and a first riveting aluminum block 12, the first riveting aluminum block 12 is embedded and fixed in a positive pole mounting hole 41, the positive pole 11 is in a shape like a Chinese character 'ji', a first step 111 is arranged on the periphery of the top of the positive pole 11, and the positive pole 11 sequentially penetrates through the positive pole mounting hole 41 and a middle through hole of the first riveting aluminum block 12 and is riveted with the first riveting aluminum block 12 through the first step 111; and/or, negative pole subassembly 2 includes negative pole post 21, second riveting aluminium pig 22, and second riveting aluminium pig 22 embedding is fixed in negative pole post mounting hole 42, negative pole post 21 is nearly font, and negative pole post 21 top periphery sets up third step 211, negative pole post 21 passes negative pole post mounting hole 42 and second riveting aluminium pig 22's middle through-hole in proper order to rivet with second riveting aluminium pig 22 through third step 211.
The positive pole and/or the negative pole are/is integrally in a shape like a Chinese character ji, and can be directly formed by stamping and stretching through a die.
According to the power battery top cover, the positive pole column and the negative pole column are riveted and fixed with the top cover plate through the riveting aluminum block, and the positive pole column and the negative pole column can be fixed on the top cover plate only through pressing, so that the process complexity can be effectively reduced, and the cost of the top cover can be reduced; and the positive and negative pole column structure is in a 'V' -shaped structure, the whole thickness is thinner, and the weight is lighter, so that the weight of the battery top cover is reduced.
In one embodiment, as shown in fig. 2 to 4, the power battery top cover further includes: the top cover plate 4 is overlapped with the lower plastic 9, the lower plastic 9 is provided with a positive pole sealing hole 91 and a negative pole sealing hole 92 at positions corresponding to the positive pole mounting hole 41 and the negative pole mounting hole 42 respectively, and the positive pole sealing hole 91 and the negative pole sealing hole 92 are embedded into the sealing ring 8; the positive pole 11 sequentially penetrates through the sealing ring 8 in the positive pole sealing hole 91, the positive pole mounting hole 41 and the middle through hole of the first riveting aluminum block 12 and is riveted with the first riveting aluminum block 12 through the first step 111; and/or the negative pole 21 sequentially penetrates through the sealing ring 8 in the negative pole sealing hole 92, the negative pole mounting hole 42 and the middle through hole of the second riveting aluminum block 22 and is riveted with the second riveting aluminum block 22 through the third step 211.
The shape of the positive sealing hole 91 is set according to the cylindrical shape of the positive post, and the shape of the negative sealing hole 92 is set according to the cylindrical shape of the negative post. The sealing ring 8 is arranged between the bottom surface of the first positive electrode sinking groove 414 of the positive electrode post mounting hole 41 of the top cover plate 4 and the upper surface of the second step 114. The lower plastic 9 is fixedly connected with the lower surface of the top cover plate 4. This embodiment makes the leakproofness of being connected between positive negative pole post and the top cap piece better through setting up sealing washer 8.
In one embodiment, as shown in fig. 3 and 4, the first riveting aluminum block 12 includes a first aluminum block 121 and an anode upper plastic 122, the first aluminum block 121 includes a middle sinking groove and a middle through hole, the anode upper plastic 122 includes a middle sinking groove and a middle through hole, the first step 111 of the anode pillar 11 is matched with the sinking groove of the first aluminum block 121, the first aluminum block 121 is matched with the sinking groove of the anode upper plastic 122, and the anode upper plastic 122 is embedded and fixed in the anode pillar mounting hole 41; and/or, second riveting aluminium pig 22 includes plastic 222 on second aluminium pig 221 and the negative pole, the second aluminium pig is including the heavy groove that sets up in the middle part and the through-hole that sets up in the middle of sinking the groove, plastic 222 includes the heavy groove that sets up in the middle part and the through-hole that sets up in the middle of sinking the groove on the negative pole, and the third step 211 of negative pole post 21 cooperatees with the heavy groove of second aluminium pig 221, and the heavy groove of plastic 222 cooperatees on second aluminium pig 221 and the negative pole, and the plastic 222 embedding is fixed in negative pole post mounting hole 42 on the negative pole.
In this embodiment, plastic holds the aluminium pig on through the negative pole that can not deform, can prevent that the aluminium pig deformation of easy deformation from leading to positive negative pole pine to take off.
In one embodiment, as shown in fig. 5 and 6, the positive post mounting hole 41 includes a first boss 411, a second boss 412, a first through hole 413, and a first positive sink 414, the first boss 411 is located at the periphery of the second boss 412, the second boss 412 is lower than the first boss 411, the second boss 412 is located at the periphery of the first through hole 413, the lower surface of the top cover plate 4 is provided with a first positive sink 414 corresponding to the first boss 411, and the first riveted aluminum block 12 is matched with the second boss 412; and/or, the negative pole column mounting hole 42 includes third boss 421, fourth boss 422, second through hole 423 and the heavy groove 424 of first negative pole, and third boss 421 is located the periphery of fourth boss 422, and fourth boss 422 is highly less than third boss 421, and fourth boss 422 is located the periphery of second through hole 423, and top cover plate 4 lower surface is equipped with the heavy groove 424 of first negative pole that corresponds with third boss 421, second riveting aluminium pig 22 cooperatees with fourth boss 422.
Wherein, positive post passes from first through-hole 413, and the negative pole post passes from second through-hole 423, and first riveting aluminium pig 12 sets up on second boss 412, supports first riveting aluminium pig 12 outer fringe through first boss 411 and in order to realize first riveting aluminium pig 12 spacing in the horizontal direction, and second riveting aluminium pig 22 sets up on fourth boss 422, supports second riveting aluminium pig 22 through third boss 421 in order to realize that second riveting aluminium pig 22 is spacing in the horizontal direction. The first cathode sinking groove 414 and/or the first cathode sinking groove 424 may have a rectangular cross section or an equilateral trapezoid cross section, and the sealing ring 8 is accommodated under the first cathode sinking groove 414 and/or the first cathode sinking groove 424.
In one embodiment, as shown in fig. 7-11, the upper surface of the positive post 11 is pressed to form a first groove 112 and a first step 111; and/or the upper surface of the negative pole 21 is pressed to form a second groove 212 and a third step 211.
Wherein the groove section of the first groove 112 and/or the second groove 212 is triangular, trapezoidal, rectangular or semicircular.
In one embodiment, as shown in fig. 7 and 8, a third sinking groove 113 is arranged in the middle of the lower surface of the positive post 11; and/or a fourth sinking groove 213 is arranged in the middle of the lower surface of the negative pole 21.
Wherein, the positive and negative poles are shaped like a Chinese character 'ji' by the arrangement of the third sinking groove 113 or the fourth sinking groove 213.
In one embodiment, as shown in fig. 2, the top cover of the power battery further includes: and the explosion-proof valve 3 is fixed in the middle of the top cover plate 4.
Wherein, top flap 4 middle part sets up exhaust hole 43, explosion-proof valve 3 includes explosion-proof valve screening glass 31 and explosion-proof piece 32, explosion-proof valve screening glass 31 is fixed in directly over the exhaust hole 43 of top flap 4 through sticky mode, explosion-proof piece 32 links firmly under the exhaust hole 43 of top flap 4 through welding mode.
Wherein, the explosion-proof piece 32 can be fixedly connected to the position right below the air vent 43 of the top cover plate 4 through laser welding. The lower plastic 9 is provided with a grid-shaped through hole right below the exhaust hole 43.
In one embodiment, the distance from the upper surface of the positive pole 11 and/or the negative pole 21 to the upper surface of the top cover plate 4 is 0mm-8mm.
In one embodiment, the top of the zigzag shape of the positive electrode post 11 and/or the negative electrode post 21 has a thickness of 2mm to 6mm. Namely, the distance from the bottom of the third sinking groove 113 of the positive pole 11 to the upper surface of the positive pole 11 is 2mm-6mm, and/or the distance from the bottom of the fourth sinking groove 213 of the negative pole 21 to the upper surface of the negative pole 21 is 2mm-6mm.
In one embodiment, as shown in fig. 12-14, the upper surface of the positive post 11 and/or the negative post 21 is circular, racetrack, or rectangular. That is, the upper surface of the upper zigzag pillar of the positive and/or negative electrode posts 11 and 21 is circular, racetrack-shaped, or rectangular.
In one embodiment, the positive electrode post 11 is made of aluminum, and the negative electrode post 21 is made of copper-aluminum composite plate or copper material.
In one embodiment, the sealing ring 8 is made of fluorine rubber, fluorosilicone rubber or PFA.
In one embodiment, the upper anode plastic 12) is PPS plastic, and/or the upper cathode plastic 222 is insulating PPS plastic.
In one embodiment, as shown in fig. 15, a battery is provided, which comprises the power battery top cover.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A power battery top cap, characterized in that includes: the anode component (1) and the cathode component (2) are respectively fixed at two ends of the top cover plate (4); wherein, one end of the top cover plate (4) is provided with a positive pole mounting hole (41), and the other end is provided with a negative pole mounting hole (42);
the anode assembly (1) comprises an anode post (11) and a first riveting aluminum block (12), wherein the first riveting aluminum block (12) is embedded and fixed in an anode post mounting hole (41), the anode post (11) is shaped like a Chinese character 'ji', a first step (111) is arranged on the periphery of the top of the anode post (11), and the anode post (11) sequentially penetrates through the anode post mounting hole (41) and a middle through hole of the first riveting aluminum block (12) and is riveted with the first riveting aluminum block (12) through the first step (111); and/or the presence of a gas in the gas,
negative pole subassembly (2) include negative pole post (21), second riveting aluminium pig (22), and second riveting aluminium pig (22) embedding is fixed in negative pole post mounting hole (42), negative pole post (21) are several font, and negative pole post (21) top periphery sets up third step (211), negative pole post (21) passes negative pole post mounting hole (42) and the middle through-hole of second riveting aluminium pig (22) in proper order to rivet through third step (211) and second riveting aluminium pig (22).
2. The power cell header of claim 1, further comprising: the top cover plate (4) is overlapped with the lower plastic (9), the lower plastic (9) is provided with an anode sealing hole (91) and a cathode sealing hole (92) at positions corresponding to the anode post mounting hole (41) and the cathode post mounting hole (42), and the anode sealing hole (91) and the cathode sealing hole (92) are embedded into the sealing ring (8);
the positive pole (11) sequentially penetrates through a sealing ring (8) in the positive pole sealing hole (91), the positive pole mounting hole (41) and a middle through hole of the first riveting aluminum block (12) and is riveted with the first riveting aluminum block (12) through a first step (111); and/or the presence of a gas in the atmosphere,
the negative pole post (21) passes through a sealing ring (8) in the negative pole sealing hole (92), the negative pole post mounting hole (42) and a middle through hole of the second riveting aluminum block (22) in sequence and is riveted with the second riveting aluminum block (22) through a third step (211).
3. The power battery top cover according to claim 1 or 2, wherein the first riveting aluminum block (12) comprises a first aluminum block (121) and an anode upper plastic (122), the first aluminum block (121) comprises a sinking groove arranged in the middle and a through hole arranged in the middle of the sinking groove, the anode upper plastic (122) comprises a sinking groove arranged in the middle and a through hole arranged in the middle of the sinking groove, the first step (111) of the anode column (11) is matched with the sinking groove of the first aluminum block (121), the first aluminum block (121) is matched with the sinking groove of the anode upper plastic (122), and the anode upper plastic (122) is embedded and fixed in the anode column mounting hole (41); and/or the presence of a gas in the atmosphere,
plastic (222) on second riveting aluminium pig (22) include second aluminium pig (221) and negative pole, the second aluminium pig is including the heavy groove that the middle part set up and the through-hole that sets up in the middle of sinking the groove, plastic (222) on the negative pole is including the heavy groove that the middle part set up and the through-hole that sets up in the middle of the heavy groove, and third step (211) of negative pole post (21) cooperate with the heavy groove of second aluminium pig (221), and the heavy groove of plastic (222) cooperatees on second aluminium pig (221) and the negative pole, and plastic (222) embedding is fixed in negative pole post mounting hole (42) on the negative pole.
4. The power battery top cover according to claim 1, wherein the positive pole mounting hole (41) comprises a first boss (411), a second boss (412), a first through hole (413) and a first positive pole sink groove (414), the first boss (411) is positioned at the periphery of the second boss (412), the second boss (412) is lower than the first boss (411), the second boss (412) is positioned at the periphery of the first through hole (413), the lower surface of the top cover plate (4) is provided with the first positive pole sink groove (414) corresponding to the first boss (411), and the first riveting aluminum block (12) is matched with the second boss (412); and/or the presence of a gas in the gas,
negative pole post mounting hole (42) include third boss (421), fourth boss (422), second through-hole (423) and the heavy groove of first negative pole (424), and third boss (421) are located the periphery of fourth boss (422), and fourth boss (422) highly are less than third boss (421), and fourth boss (422) are located the periphery of second through-hole (423), and top cap piece (4) lower surface is equipped with the heavy groove of first negative pole (424) that correspond with third boss (421), second riveting aluminium pig (22) cooperate with fourth boss (422).
5. The power battery top cover according to claim 1, wherein the upper surface of the positive post (11) is pressed to form a first groove (112) and a first step (111); and/or the presence of a gas in the atmosphere,
and a second groove (212) and a third step (211) are formed on the upper surface of the negative pole column (21) in a pressing mode.
6. The power cell cap according to claim 5, wherein the first groove (112) and/or the second groove (212) has a triangular, trapezoidal, rectangular or semicircular groove cross section.
7. The top cover of the power battery as claimed in claim 1, wherein a third sinking groove (113) is formed in the middle of the lower surface of the positive post (11); and/or a fourth sinking groove (213) is arranged in the middle of the lower surface of the negative pole column (21).
8. The top cover of the power battery according to claim 1, wherein the vent hole (43) is formed in the middle of the top cover sheet (4), the explosion-proof valve (3) comprises an explosion-proof valve protection sheet (31) and an explosion-proof sheet (32), the explosion-proof valve protection sheet (31) is fixed to the position right above the vent hole (43) of the top cover sheet (4) in an adhesive manner, and the explosion-proof sheet (32) is fixedly connected to the position right below the vent hole (43) of the top cover sheet (4) in a welding manner.
9. The power battery top cap according to claim 1, characterized in that the thickness of the zigzag top of the positive pole pillar (11) and/or the negative pole pillar (21) is 2mm-6mm.
10. A battery comprising a power battery top cover according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211295292.7A CN115441106A (en) | 2022-10-21 | 2022-10-21 | Power battery top cap and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211295292.7A CN115441106A (en) | 2022-10-21 | 2022-10-21 | Power battery top cap and battery |
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| CN115441106A true CN115441106A (en) | 2022-12-06 |
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| CN202211295292.7A Pending CN115441106A (en) | 2022-10-21 | 2022-10-21 | Power battery top cap and battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115882171A (en) * | 2023-02-09 | 2023-03-31 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115882171A (en) * | 2023-02-09 | 2023-03-31 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
| CN115882171B (en) * | 2023-02-09 | 2023-05-16 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
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Effective date of registration: 20230518 Address after: 421681 Jinwei Road, Guiyang Industrial Park, Qidong County, Hengyang City, Hunan Province Applicant after: Hunan lingpaidazhi Technology Co.,Ltd. Applicant after: Hunan Lingpai New Energy Technology Co.,Ltd. Applicant after: Hengyang Lingpai New Energy Technology Co.,Ltd. Applicant after: Hunan Lingpai New Energy Research Institute Co.,Ltd. Applicant after: Hunan Lingpai Energy Storage Technology Co.,Ltd. Address before: 215334 No. 1050, Fuchunjiang Road, Kunshan Development Zone, Suzhou, Jiangsu Province Applicant before: Suzhou Lingpai New Energy Technology Co.,Ltd. |
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