WO2024255271A1 - 极柱组件、端盖组件、储能装置及用电设备 - Google Patents

极柱组件、端盖组件、储能装置及用电设备 Download PDF

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Publication number
WO2024255271A1
WO2024255271A1 PCT/CN2024/075264 CN2024075264W WO2024255271A1 WO 2024255271 A1 WO2024255271 A1 WO 2024255271A1 CN 2024075264 W CN2024075264 W CN 2024075264W WO 2024255271 A1 WO2024255271 A1 WO 2024255271A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
end cover
insulating member
pole
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2024/075264
Other languages
English (en)
French (fr)
Inventor
肖和攀
檀基本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Hithium Energy Storage Technology Co Ltd
Shenzhen Hithium Energy Storage Technology Co Ltd
Original Assignee
Xiamen Hithium Energy Storage Technology Co Ltd
Shenzhen Hithium Energy Storage Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Hithium Energy Storage Technology Co Ltd, Shenzhen Hithium Energy Storage Technology Co Ltd filed Critical Xiamen Hithium Energy Storage Technology Co Ltd
Publication of WO2024255271A1 publication Critical patent/WO2024255271A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M50/50—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
    • H01M50/10—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
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells 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
    • H01M50/50—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

Definitions

  • the present application relates to the field of energy storage technology, and in particular to a pole assembly, an end cover assembly, an energy storage device and an electrical equipment.
  • the pole is usually passed through the pole mounting hole of the end cap from the lower surface of the end cap (the surface on the side close to the electrode assembly) to the upper surface of the end cap.
  • the flange of the pole is located on the lower surface of the end cap and is insulated against the lower plastic on the lower surface of the end cap.
  • the upper end of the pole protrudes from the upper surface of the end cap.
  • the upper plastic is usually formed between the pole and the end cap by injection molding to achieve insulation.
  • the present application provides a pole assembly, an end cover assembly, an energy storage device and an electrical equipment, which are used to solve the problems of complex assembly and high production cost of existing end cover assemblies.
  • an embodiment of the present application provides a pole assembly, including a pole, a first insulating member and a bottom plate;
  • the first insulating member is provided with a positioning hole, and the positioning hole penetrates the first insulating member along the thickness direction of the first insulating member;
  • the bottom plate is located at one side of the first insulating member in the thickness direction, and the bottom plate is provided with a fixing hole, the fixing hole penetrates the bottom plate in the thickness direction of the bottom plate and is connected with the positioning hole;
  • the pole comprises a column part and a flange part, wherein the flange part is connected to one end of the column part, and the peripheral surface of the flange part protrudes relative to the peripheral surface of the column part;
  • the column portion passes through the positioning hole and the fixing hole, and one end of the column portion away from the flange portion is fixedly connected to the bottom plate.
  • an embodiment of the present application provides an end cap assembly, comprising an end cap, a second insulating member and the pole assembly;
  • the end cover is provided with a through hole and a holding groove, the through hole penetrates the end cover along the thickness direction of the end cover, the opening of the holding groove is located on the surface of the end cover away from the second insulating member, the holding groove is arranged around the through hole and communicates with the through hole;
  • the second insulating member is provided with a mounting hole, and the mounting hole penetrates the second insulating member along the thickness direction of the second insulating member;
  • the pole assembly is inserted into the through hole and the mounting hole.
  • the first insulating member includes a main body and a clamping member.
  • the main body is provided with the positioning hole.
  • the clamping member is fixedly connected to a side of the main body away from the bottom plate. The clamping grooves are clamped to each other.
  • an embodiment of the present application provides an energy storage device, comprising a shell, an electrode assembly and an end cover assembly, wherein the shell has an opening, the shell is provided with a receiving cavity, the electrode assembly is received in the receiving cavity, and the end cover assembly is installed at the opening at one end of the shell.
  • an embodiment of the present application provides an electrical device, comprising an energy storage device, wherein the energy storage device supplies power to the electrical device.
  • the pole assembly adopts an integrated structure, which can be commonly used for multiple models of end cover assemblies, thereby reducing the development cost of parts and components and the process control cost, thereby reducing the manufacturing cost of the energy storage device; and the pole assembly is assembled by pressing down and clamping, which greatly reduces the assembly difficulty and cost of the end cover assembly, improves the assembly efficiency, and greatly increases the possibility of realizing automated batch continuous production of the end cover assembly.
  • FIG1 is an application scenario diagram of an energy storage system provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of the structure of an energy storage device provided in the first embodiment of the present application.
  • FIG3 is a schematic structural diagram of the end cover assembly shown in FIG2 ;
  • FIG4 is an exploded structural diagram of the end cover assembly shown in FIG3;
  • FIG5 is an exploded structural diagram of the end cover assembly shown in FIG3 from another angle
  • FIG6 is a partial cross-sectional structural diagram of the end cover shown in FIG4;
  • FIG7 is an exploded structural diagram of the pole assembly shown in FIG4 ;
  • FIG8 is an exploded structural diagram of the pole shown in FIG7 in another embodiment
  • FIG9 is a cross-sectional structural diagram of the pole assembly shown in FIG4 ;
  • FIG10 is a cross-sectional structural diagram of the end cover assembly shown in FIG3;
  • FIG11 is an enlarged structural diagram of the M region shown in FIG10 ;
  • FIG12 is a partial structural schematic diagram of an end cover assembly of an energy storage device provided in a second embodiment of the present application.
  • FIG13 is an exploded structural diagram of the pole assembly shown in FIG12;
  • FIG14 is an exploded structural diagram of an end cover assembly of an energy storage device provided in a third embodiment of the present application.
  • FIG15 is an exploded structural view of the end cover assembly shown in FIG14 from another angle;
  • FIG16 is an exploded structural diagram of an end cover assembly of an energy storage device provided in a fourth embodiment of the present application.
  • FIG17 is an exploded structural view of the end cap assembly shown in FIG16 from another angle;
  • FIG18 is a partial cross-sectional structural schematic diagram of the end cover assembly shown in FIG16;
  • FIG19 is an exploded structural diagram of an end cover assembly of an energy storage device provided in a fifth embodiment of the present application.
  • FIG20 is an exploded structural view of the end cap assembly shown in FIG19 from another angle;
  • FIG. 21 is a schematic diagram of a partial cross-sectional structure of the end cover assembly shown in FIG. 19 .
  • energy storage system 1000 electric energy conversion device 600; user load 500; energy storage device 400; end cover assembly 100; housing 200; end cover 10; explosion-proof valve 20; protective member 21; second insulating member 30; pole assembly 40; sealing member 50; front face 111; back face 112; through hole 12; reinforcing rib 13; pressure relief hole 14; injection hole 15; clamping groove 16; limiting portion 121; guide portion 122; clamping groove portion 161; first through hole 12A; second through hole 12B; first clamping groove 16A; second clamping groove 16B; first surface 311; second surface 312; air permeable portion 32; air permeable hole 321; mounting hole 35; accommodating groove 33; liquid inlet hole 37; first mounting hole 35A; second mounting hole 35B; first accommodating groove 33A; second accommodating groove 33B; pole 43; first insulating member 44; bottom plate 45; main body 441; clamping member 440; first surface 443; second surface 444; peripheral surface 449; positioning hole 442; positioning surface 445;
  • an embodiment of the present application provides an energy storage device, which has a group of chemical batteries in it.
  • the chemical elements in the chemical batteries are mainly used as energy storage media.
  • the charging and discharging process is accompanied by chemical reactions or changes in the energy storage media.
  • the electricity generated by wind and solar energy is stored in chemical batteries.
  • the use of external electricity reaches a peak, the stored electricity is released for use, or transferred to places where electricity is scarce for use.
  • energy storage i.e. energy storage
  • power generation side energy storage grid side energy storage
  • renewable energy grid-connected energy storage user side energy storage.
  • energy storage devices include:
  • FIG. 1 is an application scenario diagram of an energy storage system 1000 provided in an embodiment of the present application.
  • the embodiment of the present application takes the household energy storage scenario in the user-side energy storage as an example for explanation, but it should be understood that the energy storage system 1000 provided in the present application is not limited to the household energy storage scenario.
  • the energy storage system 1000 can be a household storage system.
  • the energy storage system 1000 includes an electric energy conversion device 600, a user load 500 and an energy storage device 400.
  • the energy storage device 400 is a small energy storage box that can be mounted on an outdoor wall by wall hanging.
  • the electric energy conversion device 600 can be a photovoltaic panel.
  • the electric energy conversion device 600 can convert solar energy into electric energy during the period of low electricity prices.
  • the energy storage device 400 is used to store the electric energy and supply it to user loads 500 such as street lights and household appliances for use during peak electricity prices, or to supply power when the power grid is out of power/power outages.
  • the energy storage device 400 can be, but is not limited to, a single cell, a battery module, a battery pack, a battery system, etc.
  • the energy storage device 400 when it is a single battery, it can be a cylindrical battery or a square battery.
  • FIG. 2 is a schematic diagram of the structure of the energy storage device 400 provided in the first embodiment of the present application.
  • the energy storage device 400 is described by taking a square battery as an example. It can be understood that the energy storage device 400 may include but is not limited to a single battery, a battery module, a battery pack, a battery system, etc.
  • the actual application scenario of the energy storage device 400 provided in the embodiment of the present application may be but is not limited to the listed products, and may also be other application scenarios.
  • the embodiment of the present application does not strictly limit the application scenario of the battery.
  • the length direction of the energy storage device 400 shown in FIG. 1 is defined as the X-axis direction
  • the width direction of the energy storage device 400 is defined as the Y-axis direction
  • the height direction of the energy storage device 400 is defined as the Z-axis direction.
  • the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other.
  • the energy storage device 400 includes an end cap assembly 100, a housing 200 and an electrode assembly (not shown in FIG. 2 ).
  • the housing 200 includes an opening and a receiving cavity, the electrode assembly is received in the receiving cavity, and the end cap assembly 100 is mounted on the housing 200 and covers the opening.
  • Figure 3 is a schematic structural diagram of the end cover assembly 100 shown in Figure 2
  • Figure 4 is an exploded structural diagram of the end cover assembly 100 shown in Figure 3
  • Figure 5 is an exploded structural diagram of the end cover assembly 100 shown in Figure 3 from another angle.
  • the length direction of the end cover assembly 100 is the same as the length direction of the energy storage device 400, that is, the X-axis direction
  • the width direction of the end cover assembly 100 is the same as the width direction of the energy storage device 400, that is, the Y-axis direction
  • the thickness direction of the end cover assembly 100 is the same as the height direction of the energy storage device 400, that is, the Z-axis direction.
  • the end cover assembly 100 includes an end cover 10, an explosion-proof valve 20, a protective member 21, a second insulating member 30, a pole assembly 40 and a sealing member 50.
  • the explosion-proof valve 20 is installed on the end cover 10 to prevent the energy storage device 400 from exploding during use.
  • the protective member 21 is installed on the end cover 10 to protect the explosion-proof valve 20 and prevent the explosion-proof valve 20 from being damaged by the external environment and external forces.
  • the second insulating member 30 is installed on one side of the end cover 10 in the thickness direction (Z-axis direction shown in the figure).
  • the pole assembly 40 passes through the second insulating member 30 and the end cover 10 in sequence, and is detachably installed on the second insulating member 30 and the end cover 10.
  • the sealing member 50 is sleeved on the pole assembly 40 and clamped between the pole assembly 40 and the end cover 10 to insulate and isolate the pole assembly 40 and the end cover 10.
  • the end cap 10 is in the shape of a long strip.
  • the end cap 10 includes a front side 111 and a back side 112, and the front side 111 and the back side 112 are arranged opposite to each other along the thickness direction of the end cap 10.
  • the end cap 10 is provided with a through hole 12, a pressure relief hole 14, a liquid injection hole 15 and a clamping groove 16.
  • the through hole 12, the pressure relief hole 14 and the liquid injection hole 15 all penetrate the end cap 10 along the thickness direction of the end cap 10, that is, the through hole 12, the pressure relief hole 14 and the liquid injection hole 15 all penetrate the front side 111 and the back side 112.
  • FIG. 6 is a partial cross-sectional structural diagram of the end cover 10 shown in FIG. 4 .
  • the through holes 12 are all circular holes.
  • the through holes 12 include a limiting portion 121 and a guiding portion 122.
  • the guiding portion 122 is located on the side of the limiting portion 121 facing the second insulating member 30 and is connected to the limiting portion 121.
  • the limiting portion 121 is recessed from the front side 111 to the back side 112.
  • the guiding portion 122 is recessed from the back side 112 to the front side 111.
  • the aperture of the guiding portion 122 gradually decreases along the recessed direction (the positive direction of the Z axis shown in the figure) to facilitate the assembly of the pole assembly 40.
  • the guiding portion 122 is a tapered hole, and the angle between the hole wall surface of the guiding portion 122 and the hole wall surface of the limiting portion 121 is an obtuse angle.
  • the clamping groove 16 is arranged around the through hole 12 and is in communication with the through hole 12.
  • the opening of the clamping groove 16 is located at the front side 111 of the end cover 10.
  • the clamping groove 16 is recessed from the front side 111 of the end cover 10 to the back side 112, and penetrates the hole wall surface of the through hole 12 to be in communication with the through hole 12.
  • the clamping groove 16 includes six clamping groove portions 161, and the six clamping groove portions 161 are arranged around the through hole 12 and spaced apart from each other.
  • the two through holes 12 are respectively the first through hole 12A and the second through hole 12B.
  • the two through holes 12 are respectively the first through hole 12A and the second through hole 12B.
  • the first through hole 12, the injection hole 15, the pressure relief hole 14 and the second through hole 12B are arranged in sequence.
  • the pressure relief hole 14 is located in the middle part of the end cover 10
  • the first through hole 12 and the second through hole 12B are respectively located at the two ends of the length direction of the end cover 10
  • the injection hole 15 is located between the pressure relief hole 14 and the first through hole 12.
  • the two holding grooves 16 include a first holding groove 16A and a second holding groove 16B.
  • the first holding groove 16A is arranged around the first through hole 12A and is connected to the first through hole 12A.
  • the second holding groove 16B is arranged around the second through hole 12B and is connected to the second through hole 12B.
  • the end cover 10 is further provided with a reinforcing rib 13, which protrudes from the back side 112 of the end cover 10 away from the front side 111.
  • the reinforcing rib 13 is roughly in the shape of a mesh, part of the reinforcing rib 13 is arranged around the periphery of the end cover 10, part of the reinforcing rib 13 is connected to the reinforcing rib 13 arranged on both sides of the end cover 10 along the width direction of the end cover 10, and is located between the first through hole 12A and the pressure relief hole 14, and is spaced apart from the first through hole 12A and the pressure relief hole 14; part of the reinforcing rib 13 is connected to the reinforcing rib 13 arranged on both sides of the end cover 10 along the width direction of the end cover 10, and is located between the second through hole 12B and the injection hole 15, and is spaced apart from the second through hole 12B and the injection hole 15.
  • the reinforcing rib 13 can be formed by stamping the end cover 10 from the front side 111 to the back side 112, and a stamping groove 13A is formed on the front side 111, and at this time, the back side of the reinforcing rib 13 is the groove bottom surface of the stamping groove 13A.
  • the back side 112 of the end cover 10 is provided with reinforcing ribs 13, which are beneficial to improving the structural strength of the end cover 10 in its thickness direction, preventing the end cover 10 from being squeezed and deformed by the internal pressure of the energy storage device 400, affecting the normal explosion-proof valve 20 and making the explosion-proof measures of the energy storage device 400 ineffective.
  • the explosion-proof valve 20 is installed on the end cover 10 and covers the pressure relief hole 14 to block the pressure relief hole 14.
  • the explosion-proof valve 20 covers the opening of the pressure relief hole 14 toward the second insulating member 30.
  • the protective member 21 is installed on the end cover 10 and covers the opening of the pressure relief hole 14 away from the second insulating member 30.
  • the second insulating member 30 is roughly in the shape of a rectangular thin plate.
  • the second insulating member 30 includes a first surface 311 and a second surface 312, and the first surface 311 and the second surface 312 are arranged opposite to each other along the thickness direction of the second insulating member 30 (Z-axis direction shown in the figure).
  • the first surface 311 is arranged opposite to the back surface 112 of the end cover 10, and the second surface 312 is arranged opposite to the front surface 111 of the end cover 10.
  • the second insulating member 30 includes a breathable portion 32, which is located in the middle of the second insulating member 30 and is arranged opposite to the explosion-proof valve 20.
  • the breathable portion 32 is provided with a plurality of breathable holes 321, and the breathable holes 321 penetrate the second insulating member 30 along the thickness direction of the second insulating member 30.
  • the plurality of breathable holes 321 are used to pass the pressurized gas generated by the electrode assembly to the explosion-proof valve 20.
  • the shape of the breathable hole 321 can be circular, rectangular or fan-shaped, and the specific shape is not limited.
  • the second insulating member 30 is provided with a mounting hole 35, a receiving groove 33 and a liquid inlet hole 37.
  • the mounting hole 35 penetrates the second insulating member 30 along the thickness direction (Z-axis direction) of the second insulating member 30 and is communicated with the through hole 12 of the end cover 10.
  • the receiving groove 33 is arranged around the mounting hole 35 and is communicated with the mounting hole 35.
  • the receiving groove 33 is recessed from the second surface 312 of the second insulating member 30 toward the first surface 311, and penetrates the hole wall surface of the mounting hole 35 to communicate with the mounting hole 35.
  • the two mounting holes 35 are respectively a first mounting hole 35A and a second mounting hole 35B.
  • the first mounting hole 35A and the second mounting hole 35B are respectively located at opposite ends of the second insulating member 30.
  • the first mounting hole 35A is arranged opposite to the first through hole 12A and communicates with the first through hole 12A
  • the second mounting hole 35B is arranged opposite to the second through hole 12B and communicates with the second through hole 12B.
  • the two accommodating grooves 33 are respectively a first accommodating groove 33A and a second accommodating groove 33B.
  • the first accommodating groove 33A is arranged around the first mounting hole 35A
  • the second accommodating groove 33B is arranged around the second mounting hole 35B.
  • the first accommodating groove 33A is communicated with the first mounting hole 35A
  • the second accommodating groove 33B is communicated with the second mounting hole 35B.
  • the liquid inlet hole 37 is located between the first mounting hole 35A and the air permeable portion 32, and is spaced apart from the first mounting hole 35A and the air permeable portion 32.
  • the liquid inlet hole 37 is arranged opposite to the liquid injection hole 15, and is communicated with the liquid injection hole 15.
  • FIG. 7 is an exploded structural diagram of the pole assembly 40 shown in FIG. 4 .
  • the pole assembly 40 includes a pole 43, a first insulating member 44 and a bottom plate 45.
  • the pole 43 passes through the first insulating member 44 and the bottom plate 45 and is fixedly connected to the bottom plate 45.
  • the first insulating member 44 is clamped between the pole 43 and the bottom plate 45.
  • the first insulating member 44 is made of plastic.
  • the first insulating member 44 is made by injection molding. It is understandable that the injection mold can be used to continuously produce multiple first insulating members 44, which can significantly improve production efficiency and reduce manufacturing costs compared to the existing injection molding process for forming insulating members.
  • the first insulating member 44 includes a main body 441 and a clamping member 440, and the clamping member 440 is fixedly connected to the main body 441.
  • the main body 441 is generally annular.
  • the main body 441 includes a first surface 443, a second surface 444 and a peripheral surface 449.
  • the first surface 443 and the second surface 444 are arranged opposite to each other along the thickness direction of the main body 441 (Z-axis direction in the figure), and the peripheral surface 449 is connected between the first surface 443 and the second surface 444.
  • the first surface 443 faces away from the bottom plate 45, and the second surface 444 faces the bottom plate 45.
  • the main body 441 is provided with a positioning hole 442, and the positioning hole 442 is roughly in the shape of a runway.
  • the positioning hole 442 is located in the middle of the main body 441 and penetrates the main body 441 along the thickness direction (Z-axis direction) of the first insulating member 44.
  • the hole wall surface of the positioning hole 442 includes two positioning surfaces 445, and the positioning surface 445 is connected between the first surface 443 and the second surface 444.
  • the two positioning surfaces 445 are spaced and arranged opposite to each other.
  • the positioning surface 445 can make the shape of the positioning hole 442 not a complete circle, thereby limiting the rotation of the pole 43 around its axial direction (Z-axis direction shown in the figure).
  • the two positioning surfaces 445 can be planes.
  • the clamping member 440 is fixedly connected to the first surface 443 and is used to clamp with the clamping groove 16.
  • the clamping member 440 includes a plurality of clamping protrusions 446, and the clamping protrusions 446 are provided on the first surface 443 of the main body 441.
  • the plurality of clamping protrusions 446 are arranged at intervals around the edge of the first surface 443 of the main body 441. In this embodiment, there are six clamping protrusions 446, and the six clamping protrusions 446 are used to clamp with the six clamping grooves 16 respectively.
  • Each of the clamping protrusions 446 includes a first clamping section 447 and a second clamping section 448, and the second clamping section 448 is connected to the first clamping section 447.
  • the first clamping section 447 is convexly arranged on the first surface 443 of the main body 441, and the second clamping section 448 is connected to an end of the first clamping section 447 away from the first surface 443, and extends from the first clamping section 447 in a direction away from the positioning hole 442.
  • the second clamping section 448 is arranged at an angle to the first clamping section 447. Exemplarily, the angle between the first clamping section and the second clamping section is about 90 degrees. In other words, the clamping protrusion 446 is roughly in an inverted "L" shape.
  • the first clamping section 447 includes a third surface 4471 and a fourth surface 4472, and the third surface 4471 and the fourth surface 4472 are arranged opposite to each other along the thickness direction of the first clamping section 447, the third surface 4471 is opposite to the positioning hole 442, and the fourth surface 4472 is facing the positioning hole 442, and the fourth surface 4472 is connected to the first surface 443 at an angle.
  • the angle between the fourth surface 4472 and the first surface 443 is about 90 degrees.
  • the third surface 4471 of the clamping protrusion 446 is coplanar with the peripheral surface 449 of the main body 441.
  • the second holding section 448 includes a fifth surface 4481, an outer side surface 4482, a top surface 4483 and a guide surface 4484.
  • the fifth surface 4481 and the top surface 4483 are arranged opposite to each other, and the top surface 4483 is arranged opposite to the main body 441.
  • the outer side surface 4482 is the surface of the second clamping section 448 opposite to the positioning hole 442, and is protruding relative to the third surface 4471.
  • the guide surface 4484 is connected between the top surface 4483 and the outer side surface 4482. Among them, the guide surface 4484 is used to facilitate the assembly and disassembly of the pole assembly 40 and the end cover 10.
  • the bottom plate 45 is roughly plate-shaped and made of a conductive material. Among them, the bottom plate 45 can be a welding ring.
  • the bottom plate 45 is provided with a fixing hole 451, which is roughly in the shape of a runway.
  • the fixing hole 451 is located in the middle of the bottom plate 45, and the fixing hole 451 passes through the bottom plate 45 along the thickness direction (Z-axis direction) of the bottom plate 45.
  • the bottom plate 45 is located on one side of the second surface 444 of the main body 441.
  • the fixing hole 451 is arranged opposite to the positioning hole 442 and is connected to the positioning hole 442.
  • the hole wall surface of the fixing hole 451 includes two fixing surfaces 452, and the two fixing surfaces 452 are spaced and arranged opposite to each other.
  • the fixing surface 452 makes the shape of the fixing hole 451 not a complete circle, which can limit the rotation of the pole 43 around its axis direction (Z-axis direction shown in the figure).
  • the two fixing surfaces 452 can be planes, and each fixing surface 452 can be coplanar with a positioning surface 445.
  • the pole 43 is made of a conductive material.
  • the pole 43 includes a column portion 431 and a flange portion 432, and the flange portion 432 is connected to one end of the column portion 431.
  • the column portion 431 is roughly cylindrical, and the peripheral side surface of the column portion 431 includes two limiting surfaces 433, and the two limiting surfaces 433 are spaced and arranged opposite to each other, and are used to cooperate with the fixing surface 452 and the positioning surface 445 to limit the rotation of the pole 43 along its axial direction (Z-axis direction shown in the figure).
  • the limiting surface 433 is a plane.
  • the flange portion 432 is roughly disc-shaped, and the peripheral surface of the flange portion 432 protrudes relative to the peripheral surface of the column portion 431.
  • FIG. 8 is an exploded structural diagram of the pole 43 shown in FIG. 7 in another embodiment.
  • the pole 43 includes a first metal part 434 and a second metal part 435.
  • the first metal part 434 is fixedly connected to the second metal part 435.
  • the first metal part 434 includes a carrier 436 and a protrusion 437, and the protrusion 437 is protruded from the middle of the carrier 436.
  • the protrusion 437 is cylindrical, and the carrier 436 is disc-shaped.
  • the second metal part 435 includes a body 438 and a bearing part 439, and the bearing part 439 is fixedly connected to one end of the body 438 and is arranged around the body 438.
  • the body 438 is roughly cylindrical and is provided with a bearing groove 4381.
  • the bearing groove 4381 is roughly circular, and the bearing groove 4381 is recessed from one end surface of the body 438 to carry the protrusion 437 of the first metal part 434.
  • the bearing part 439 is roughly annular and is protruded from the peripheral side surface of the body 438.
  • the protrusion 437 of the first metal part 434 is located in the bearing groove 4381 of the second metal part 435, and the carrier 436 of the first metal part 434 is held against the end surface of the bearing part 439.
  • the circumference of the carrier 436 of the first metal part 434 and the circumference of the bearing part 439 of the second metal part 435 together constitute the circumference of the limiting part 462, and the circumference of the body 438 of the second metal part 435 is the circumference of the column part 431.
  • FIG. 9 is a cross-sectional structural diagram of the pole assembly 40 shown in FIG. 4.
  • the column part 431 of the pole 43 passes through the positioning hole 442 of the main body 441 and the fixing hole 451 of the bottom plate 45 in sequence.
  • Each limiting surface 433 abuts against a positioning surface 445 and a fixing surface 452 to limit the rotation of the pole 43 along its axial direction (Z-axis direction in the figure), thereby improving the torsional strength of the pole 43.
  • the end of the column part 431 away from the flange part 432 is installed and fixed in the fixing hole 451.
  • the circumferential side surface of the column part 431 and the hole wall surface of the fixing hole 451 are fixed by welding to form a welding part S.
  • seam welding is performed between the circumferential side surface of the column part 431 and the hole wall surface of the fixing hole 451 to form a welding part S, so that the column part 431 is fixedly connected to the bottom plate 45. Since the welding machine power of the seam welding is low, it can meet the requirements of energy saving and emission reduction.
  • the flange portion 432 is pressed against the first surface 443 of the main body 441 , and the first insulating member 44 is clamped between the flange portion 432 and the bottom plate 45 .
  • the circumferential surface of the flange portion 432 is spaced apart from and arranged opposite to the fourth surface 4472 of the holding protrusion 446.
  • the gap between the circumferential surface of the flange portion 432 and the fourth surface 4472 of the holding protrusion 446 forms a deformation space, which can facilitate the deformation of the holding protrusion 446 toward the flange portion 432, thereby facilitating the disassembly and assembly of the pole assembly 40.
  • FIG. 10 is a cross-sectional structural diagram of the end cover assembly 100 shown in FIG. 3
  • FIG. 11 is an enlarged structural diagram of the M region shown in FIG. 10 .
  • the first insulating member 44 and the pole 43 of the pole assembly 40 sequentially pass through the mounting hole 35 of the second insulating member 30 and the end cover 10.
  • the guide portion 122 of the end cap 10 is guided into the limiting portion 121 by the guide portion 122, the clamping member 440 is clamped in the clamping groove 16, and the bottom plate 45 is accommodated in the accommodating groove 33 of the second insulating member 30, so as to realize the clamping of the second insulating member 30 and the end cap 10 by the pole assembly 40.
  • the six clamping protrusions 446 are clamped in the six clamping grooves 161 respectively, and the fifth surface 4481 of each clamping protrusion 446 is crimped to the bottom surface of the groove of the clamping groove 161.
  • each clamping protrusion 446 can be located on the side of the front face 111 of the end cap 10 facing the second insulating member 30, or can also be flush with the front face 111. In other words, the top surface 4483 can be flush with or lower than the front face 111 of the end cap 10 to reduce the thickness of the end cap assembly 100.
  • the third surface 4471 of each clamping protrusion 446 abuts against the hole wall surface of the limiting portion 121. A portion of the surface of the bottom plate 45 facing the first insulating member 44 is pressed against the bottom surface of the receiving groove 33 , and a portion of the side surface of the bottom plate 45 is disposed opposite to the side surface of the receiving groove 33 .
  • pole assemblies 40 there are two pole assemblies 40, and the two pole assemblies 40 are respectively a first pole assembly 40A and a second pole assembly 40B.
  • the first pole assembly 40A is installed in the first mounting hole 35A of the second insulating member 30 and the first through hole 12A of the end cover 10, and is mutually clamped with the first clamping groove 16A so as to be detachably installed on the end cover 10.
  • the second pole assembly 40B is installed in the second mounting hole 35B of the second insulating member 30 and the second through hole 12B of the end cover 10, and is mutually clamped with the second clamping groove 16B so as to be detachably installed on the end cover 10.
  • the pole assembly 40 can be commonly used in multiple models of end cover assemblies 100, thereby reducing the development cost of components and the process control cost, thereby reducing the manufacturing cost of the energy storage device 400.
  • the first pole assembly 40A is a positive pole assembly, and the pole 43 and the bottom plate 45 of the first pole assembly 40A are both made of metal aluminum.
  • the second pole assembly 40B is a negative pole assembly.
  • the pole 43 of the second pole assembly 40B includes a first metal part 434 and a second metal part 435.
  • the first metal part 434 is made of aluminum, and the second metal part 435 is made of copper.
  • the pole 43 of the second pole assembly 40B is stamped from a copper-aluminum plate.
  • the bottom plate 45 of the second pole assembly 40B is made of copper.
  • the first pole assembly 40A may also be a negative pole assembly
  • the second pole assembly 40B may be a positive pole assembly, and the corresponding relationship is not specifically limited.
  • the seal 50 is a seal ring made of insulating materials such as plastic.
  • the seal 50 is sleeved on the circumference of the main body 441, and is spaced from the main body 441, and is clamped between the back side 112 of the end cover 10 and the bottom plate 45, which can not only insulate the pole assembly 40 and the end cover 10, but also improve the installation sealing of the end cover 10 and the pole assembly 40, thereby improving the sealing of the end cover assembly 100 after assembly.
  • first seal 50A there are two seals 50, which are a first seal 50A and a second seal 50B.
  • the first seal 50A is sleeved on the circumference of the main body 441 of the first pole assembly and clamped between the back side 112 of the end cover 10 and the bottom plate 45 of the first pole assembly.
  • the second seal 50B is sleeved on the circumference of the main body 441 of the second pole assembly and clamped between the back side 112 of the end cover 10 and the bottom plate 45 of the second pole assembly.
  • the pole assembly 40 is fixed in a tooling fixture after being covered with the sealing member 50, and then the second insulating member 30 and the end cover 10 are covered on the pole assembly 40 in sequence, and a press is used to apply downward pressure (negative direction of the Z axis) to the end cover 10, so that the clamping member 440 of the pole assembly 40 is guided to the limiting portion 121 via the guide portion 122 and clamped in the clamping groove 16.
  • the pole assembly 40 is assembled by pressing down and clamping, which greatly reduces the assembly difficulty and cost of the end cover assembly 100, improves the assembly efficiency, and also greatly increases the possibility of realizing automated batch continuous production of the end cover assembly 100.
  • the sealing member 50 is located between the wall surface of the mounting hole 35 and the peripheral surface 449 of the first insulating member 44, and is spaced apart from the first insulating member 44, deformation of the first insulating member 44 will not reduce the compression amount of the sealing member 50 and generate the risk of electrolyte leakage, nor will the pole 43 sink into the first insulating member 44, resulting in poor welding between the energy storage device 400 and the busbar (BUS bar).
  • the holding protrusion can be driven to The protrusions 446 are deformed toward the flange 432 along the radial direction of the first insulating member 44, and withdraw from the clamping groove 161.
  • the six clamping grooves 161 are all inserted with the pins, the six clamping protrusions 446 are deformed and retracted toward the flange 432, and withdraw from the clamping groove 161.
  • the deformed and retracted pole assembly 40A can be easily withdrawn from the through hole 12 and the mounting hole 35, release the clamping with the second insulating member 30 and the end cover 10, and be removed from the end cover assembly 100.
  • the pole assembly 40 is a detachable module, that is, the pole assembly 40 can release the clamping with the second insulating member 30 and the end cover 10, and be removed from the end cover assembly 100.
  • the end cover assembly 100 is assembled by pressing down the end cover 10 to clamp the pole assembly 40, so when the pole assembly 40 is removed from the end cover assembly 100, the end cover 10, the second insulating member 30 and the seal 50 are all in an active state.
  • the end cover assembly 100 if defective products appear, such as poor air tightness, defective second insulating member 30 or end cover 10, the end cover assembly 100 can be disassembled and reworked in time and the corresponding parts can be replaced, which significantly reduces the cost of scrapping defective products.
  • the end cover 10 and the second insulating member 30 are separable, which is conducive to the classification of defective products after scrapping, and further reduces the cost of scrapping defective products.
  • the end cap assembly 100 also includes an adapter plate (not shown in Figures 1 to 11), which is connected to the side of the pole assembly 40 that faces away from the second insulating member 30.
  • the adapter plate is roughly in the shape of a thin sheet, made of a conductive material, and is used to electrically connect the pole assembly 40 and the electrode assembly.
  • the adapter plate is fixedly connected to the surface of the base plate 45 that faces away from the first insulating member 44.
  • the adapter plate is connected to the base plate 45 by penetration welding.
  • there are two adapter plates and the two adapter plates are the first adapter plate and the second adapter plate.
  • the first adapter plate electrically connects the first pole assembly 40A and the electrode assembly
  • the second connecting plate electrically connects the second pole assembly 40B and the electrode assembly.
  • FIG. 12 is a partial structural diagram of an end cover assembly 100 in an energy storage device provided in the second embodiment of the present application
  • FIG. 13 is an exploded structural diagram of the pole assembly 40 shown in FIG. 12 .
  • the end cap assembly 100 of the second embodiment is different from the end cap assembly 100 of the first embodiment in that the retaining groove 16 of the end cap 10 is an annular groove arranged around the through hole 12.
  • the number of retaining protrusions 446 is twenty-four, and the twenty-four retaining protrusions 446 are arranged at intervals around the edge of the first surface 443 of the main body 441.
  • each clamping protrusion 446 is pressed against the bottom surface of the clamping groove portion 161.
  • the fourth surface 4472 of each clamping protrusion 446 abuts against the hole wall surface of the limiting portion 121.
  • the pole assembly 40 of the second embodiment adopts more clamping protrusions 446 and annular clamping grooves 16 for clamping, thereby improving the thrust strength on the first insulating member 44 when the pole assembly 40 enters the limiting portion 121 through the guide portion 122, reducing the clamping difficulty of the pole assembly 40 and the end cover 10, and improving the assembly efficiency of the end cover assembly 100.
  • FIG. 14 is an exploded structural diagram of the end cover assembly 100 of the energy storage device provided in the third embodiment of the present application
  • FIG. 15 is an exploded structural diagram of the end cover assembly 100 shown in FIG. 14 from another angle.
  • the end cover assembly 100 of the third embodiment is different from the end cover assembly 100 of the first embodiment in that the end cover 10 includes a first limiting portion 10A, which is arranged on the surface of the end cover 10 facing the second insulating member 30 and is arranged around the through hole 12; the second insulating member 30 includes a second limiting portion 30A, which is arranged on the surface of the second insulating member 30 facing the end cover 10, and is arranged around the mounting hole 35, and is mutually limited with the first limiting portion 10A.
  • the first limiting portion 10A is a blind hole 18, and the blind hole 18 is recessed from the back side 112 of the end cover 10 toward the front side 111.
  • the multiple blind holes 18 include multiple first blind holes 18A and multiple second blind holes 18B, and the multiple first blind holes 18A are arranged at intervals around the first through hole 12A, and the multiple second blind holes 18B are arranged at intervals around the second through hole 12B.
  • the second limiting portion 30A is a positioning column 38, and the positioning column 38 is protruded from the first surface 311 of the second insulating member 30.
  • the plurality of positioning posts 38 include a plurality of first positioning posts 38A and a plurality of second positioning posts 38B.
  • the plurality of first positioning posts 38A are arranged at intervals around the first mounting hole 35A and are arranged one-to-one with the plurality of first blind holes 18A.
  • the plurality of second positioning posts 38B are arranged at intervals around the second mounting hole 35B and are arranged one-to-one with the plurality of second blind holes 18B. Exemplarily, there are eight positioning posts 38, and there are four first positioning posts 38A and four second positioning posts 38B.
  • the first surface 311 of the second insulating member 30 is arranged opposite to the back surface 112 of the end cover 10, and the plurality of positioning posts 38 are respectively inserted into the plurality of blind holes 18, which can limit the relative movement of the second insulating member 30 and the end cover 10 in the length direction (X-axis direction) and the width direction (Y-axis direction) of the end cover assembly 100, thereby improving the assembly accuracy of the end cover assembly 100.
  • the plurality of positioning posts 38 around the mounting hole 35 and the plurality of blind holes 18 around the through hole 12 are all arranged around the pole assembly 40, which can improve the torsional strength of the pole assembly 40 and prevent the pole 43 of the pole assembly 40 from being torsionally damaged.
  • Figure 16 is a decomposition structure diagram of the end cover assembly 100 of the energy storage device 400 provided in the fourth embodiment of the present application
  • Figure 17 is a decomposition structure diagram of the end cover assembly 100 shown in Figure 16 from another angle
  • Figure 18 is a partial cross-sectional structure schematic diagram of the end cover assembly 100 shown in Figure 16.
  • the end cap assembly 100 of the fourth embodiment is different from the end cap assembly 100 of the third embodiment in that the first limiting portion 10A is a mounting groove 181, and the mounting groove 181 is recessed from the back surface 112 to the front surface 111, and penetrates the hole wall surface of the through hole 12 to connect the through hole 12.
  • the mounting groove 181 is a rectangular groove.
  • the mounting groove 181 can be formed by stamping the end cap 10 from the back surface 112 to the front surface 111, and a convex bump 183 is formed on the front surface 111. At this time, the back of the convex bump 183 is the bottom surface of the mounting groove 181.
  • first mounting groove 181A and a second mounting groove 181B there are two mounting grooves 181, which are respectively a first mounting groove 181A and a second mounting groove 181B.
  • first mounting groove 181A and the second mounting groove 181B are respectively located at opposite ends of the end cover 10.
  • first mounting groove 181A passes through the hole wall surface of the first through hole 12A and is connected to the first through hole 12A
  • second mounting groove 181B passes through the hole wall surface of the second through hole 12B and is connected to the second through hole 12B.
  • the second limiting portion 30A is a boss 383, which protrudes from the first surface 311 in a direction away from the second surface 312 and is arranged corresponding to the mounting groove 181.
  • the boss 383 is a rectangular protrusion 437.
  • the first boss 383A and the second boss 383B are respectively located at opposite ends of the second insulating member 30, and the first boss 383A is arranged corresponding to the first mounting groove 181A, and the second boss 383B is arranged corresponding to the second mounting groove 181B.
  • FIG. 18 Please refer to FIG. 18 .
  • the first surface 311 of the second insulating member 30 is opposite to the back surface 112 of the end cap 10
  • the boss 383 is installed in the installation groove 181, which can limit the relative movement of the second insulating member 30 and the end cap 10 in the length direction (X-axis direction) and the width direction (Y-axis direction) of the end cap assembly 100, thereby improving the assembly accuracy of the end cap assembly 100.
  • the rectangular boss 383 is installed in the rectangular installation groove 181, which can also limit the relative rotation of the second insulating member 30 and the end cap 10, so as to improve the torsional strength of the pole assembly 40 passing through the boss 383 and the installation groove 181.
  • the thickness of the end cap assembly 100 is relatively thin, which helps to increase the cell capacity of the energy storage device 400 and improve the storage capacity of the energy storage device 400.
  • the adapter plate 60 is provided with a welding hole 63, and the welding hole 63 penetrates the adapter plate 60 along the thickness direction of the adapter plate 60.
  • the welding hole 63 is a rectangular hole.
  • the adapter plate 60 is located on the side of the second insulating member 30 away from the end cover 10, and the adapter plate 60 is sleeved on the periphery of the bottom plate 45.
  • the hole wall surface of the welding hole 63 and the peripheral surface of the bottom plate 45 are fixed by welding to form a welding portion Q.
  • seam welding is performed between the peripheral surface of the bottom plate 45 and the hole wall surface of the welding hole 63, so that the bottom plate 45 is fixedly connected to the adapter plate 60.
  • the welding machine power of seam welding is lower, which can better meet the requirements of energy saving and emission reduction.
  • the first adapter plate 60A is provided with a first welding hole 63A, and the first adapter plate 60A is sleeved on the periphery of the bottom plate 45 of the first pole assembly 40A and is welded and fixed to the bottom plate 45 of the first pole assembly 40A.
  • the second adapter plate 60B is provided with a second welding hole 63B, and the second adapter plate 60B is sleeved on the periphery of the bottom plate 45 of the second pole assembly 40B and is welded and fixed to the bottom plate 45 of the second pole assembly 40B.
  • Figure 19 is a decomposition structure diagram of the end cover assembly 100 of the energy storage device 400 provided in the fifth embodiment of the present application
  • Figure 20 is a decomposition structure diagram of the end cover assembly 100 shown in Figure 19 from another angle
  • Figure 21 is a partial cross-sectional structure schematic diagram of the end cover assembly 100 shown in Figure 19.
  • the end cap assembly 100 of the fifth embodiment is different from the end cap assembly 100 of the fourth embodiment in that the first limiting portion 10A is a convex strip 193, which is arranged around the through hole 12 and is spaced apart from the through hole 12.
  • the convex strip 193 protrudes from the back side 112 of the end cap 10 away from the front side 111.
  • the convex strip 193 may be in a square ring shape.
  • the convex strip 193 may be formed by stamping the end cap 10 from the front side 111 to the back side 112, and a groove 191 is formed on the front side 111, and the back side of the convex strip 193 is the bottom surface of the groove 191.
  • the two convex strips 193 are respectively a first convex strip 193A and a second convex strip 193B.
  • the first convex strip 193A and the second convex strip 193B are respectively located at opposite ends of the end cap 10.
  • the first protrusion 193A is disposed around the first through hole 12A
  • the second protrusion 193B is disposed around the second through hole 12B.
  • the second limiting portion 30A is a positioning groove 391, and the positioning groove 391 is arranged around the mounting hole 35 and is spaced from the mounting hole 35.
  • the positioning groove 391 is recessed from the first surface 311 of the second insulating member 30 in the direction of the second surface 312.
  • the positioning groove 391 is a rectangular annular groove.
  • the first positioning groove 391A and the second positioning groove 391B are respectively located at opposite ends of the second insulating member 30.
  • the first positioning groove 391A is arranged around the first mounting hole 35A and is arranged corresponding to the first convex strip 193.
  • the second positioning groove 391B is arranged around the second mounting hole 35B and is arranged corresponding to the first convex strip 193.
  • the second insulating member 30 is further provided with a protruding ring 393, which is disposed around the mounting hole 35 and spaced apart from the mounting hole 35.
  • the protruding ring 393 protrudes from the second surface 312 of the second insulating member 30 in a direction away from the first surface 311.
  • the projection of the protruding ring 393 on the first surface 311 covers the positioning groove 391.
  • the protruding ring 393 may be in a square ring shape.
  • protruding rings 393 there are two protruding rings 393, namely a first protruding ring 393A and a second protruding ring 393B.
  • first protruding ring 393A and the second protruding ring 393B are respectively located at opposite ends of the second insulating member 30.
  • the first protruding ring 393A is arranged around the first mounting hole 35A
  • the second protruding ring 393B is arranged around the second mounting hole 35B.
  • the adapter plate 60 is further provided with a receiving groove 65, which is arranged around the welding hole 63 and is spaced apart from the welding hole 63.
  • the receiving groove 65 is recessed from the surface of the adapter plate 60 facing the second insulating member 30 in a direction away from the second insulating member 30.
  • the receiving groove 65 is arranged corresponding to the convex ring 393.
  • the receiving groove 65 is a rectangular ring groove.
  • the adapter plate 60 is located on the side of the second insulating member 30 away from the end cover 10.
  • the adapter plate 60 is sleeved on the periphery of the bottom plate 45.
  • the hole wall surface of the welding hole 63 and the periphery of the bottom plate 45 are fixed by welding to form a welding portion Q.
  • the two convex rings 393 of the second insulating member 30 are respectively installed in the receiving grooves 65 of the two adapter plates 60 to limit the relative rotational movement of the adapter plate 60 relative to the second insulating member 30, reduce the torsional stress that the adapter plate 60 may exert on the bottom plate 45 of the pole assembly 40, and avoid the pole assembly 40.
  • the assembly 40 failed due to torsion.
  • a first receiving groove 65A is provided on the first adapter 60A, the first adapter 60A is sleeved on the periphery of the bottom plate 45 of the first pole assembly 40A, and the first convex ring 393A is installed in the first receiving groove 65A.
  • a second receiving groove 65B is provided on the second adapter 60B, the second adapter 60B is sleeved on the periphery of the bottom plate 45 of the second pole assembly 40B, and the second convex ring 393B is installed in the second receiving groove 65B.

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Abstract

本申请公开一种极柱组件、端盖组件、储能装置及用电设备，极柱组件极柱、第一绝缘件和底板；第一绝缘件设有定位孔，定位孔沿第一绝缘件的厚度方向贯穿第一绝缘件；底板位于第一绝缘件厚度方向上的一侧，底板设有固定孔，固定孔沿底板的厚度方向贯穿底板，且与定位孔连通；极柱包括柱体部和法兰部，法兰部连接于柱体部的一端，法兰部的周面相对于柱体部的周面凸出；柱体部穿过定位孔和固定孔，且柱体部远离法兰部的一端与底板固定连接。

Description

极柱组件、端盖组件、储能装置及用电设备
本申请要求于2023年06月12日提交中国专利局、申请号为202310688115.3、申请名称为“极柱组件、端盖组件、储能装置及用电设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及储能技术领域，尤其涉及一种极柱组件、端盖组件、储能装置及用电设备。
背景技术
二次电池等储能装置因其的可循化利用特性而被广泛应用于用电设备中。现有的端盖组件制程中，通常是将极柱由端盖下表面(靠近电极组件一侧表面)至端盖上表面穿设于端盖的极柱安装孔，极柱的法兰部位于端盖下表面且与端盖下表面的下塑胶抵接绝缘，极柱上端凸出于端盖上表面，上塑胶通常采用注塑包胶工艺形成于极柱与端盖之间实现绝缘。
然而，注塑包胶工艺效率低、成本高且装配复杂，难以实现自动化装配，在生产过程中工作人员需要带防烫手套取放产品，机台高温容易烫伤工作人员。这导致储能装置的生产效率低下，大大制约了储能装置的发展。
发明内容
本申请提供一种极柱组件、端盖组件、储能装置及用电设备，用以解决现有端盖组件装配复杂，生产成本高的问题。
第一方面，本申请实施例提供一种极柱组件，包括极柱、第一绝缘件和底板；
所述第一绝缘件设有定位孔，所述定位孔沿所述第一绝缘件的厚度方向贯穿所述第一绝缘件；
所述底板位于所述第一绝缘件厚度方向上的一侧，所述底板设有固定孔，所述固定孔沿所述底板的厚度方向贯穿所述底板，且与所述定位孔连通；
所述极柱包括柱体部和法兰部，所述法兰部连接于所述柱体部的一端，所述法兰部的周面相对于所述柱体部的周面凸出；
所述柱体部穿过所述定位孔和所述固定孔，且所述柱体部远离所述法兰部的一端与所述底板固定连接。
第二方面，本申请实施例提供一种端盖组件，包括端盖、第二绝缘件和所述的极柱组件；
所述端盖设有通孔和卡持槽，所述通孔沿所述端盖的厚度方向贯穿所述端盖，所述卡持槽的开口位于所述端盖背离所述第二绝缘件的表面，所述卡持槽环绕所述通孔设置，且与所述通孔连通；
所述第二绝缘件设有安装孔，所述安装孔沿所述第二绝缘件的厚度方向贯穿所述第二绝缘件；
所述极柱组件穿设于所述通孔和所述安装孔，所述第一绝缘件包括主体和卡持件，所述主体设有所述定位孔，所述卡持件固定连接于所述主体远离所述底板的一侧，所述卡持件与 所述卡持槽相互卡持。
第三方面，本申请实施例提供一种储能装置，包括壳体、电极组件和端盖组件，所述壳体具有开口，所述壳体开设有容纳腔，所述电极组件容纳于所述容纳腔，所述端盖组件安装于所述壳体一端的所述开口处。
第四方面，本申请实施例提供一种用电设备，包括储能装置，所述储能装置为所述用电设备供电。
综上所述，极柱组件采用一体式结构，可以能够通用于多个型号的端盖组件，因而能够减少零部件的开发成本以及制程管控成本，从而降低储能装置的制造成本；且极柱组件通过下压卡持进行装配，大大降低了端盖组件的装配难度和成本，提高了装配的效率，也大大提升了端盖组件装配实现自动化批量连续生产的可能性。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以如这些附图获得其他的附图。
图1是本申请实施例提供的储能系统的应用场景图；
图2为本申请第一实施例提供的储能装置的结构示意图；
图3为图2所示的端盖组件的结构示意图；
图4为图3所示端盖组件的分解结构图；
图5为图3所示端盖组件的另一角度的分解结构图；
图6为图4所示的端盖的部分剖面结构图；
图7为图4所示的极柱组件的分解结构图；
图8为图7所示的极柱的在另一种实施方式下的分解结构图；
图9为图4所示的极柱组件的剖面结构图；
图10为图3所示的端盖组件的剖面结构图；
图11为图10所示的M区域的放大结构图；
图12为本申请第二实施例提供的储能装置的端盖组件的部分结构示意图；
图13为图12所示的极柱组件的分解结构图；
图14为本申请第三实施例提供的储能装置的端盖组件的分解结构图；
图15为图14所示端盖组件的另一角度的分解结构图；
图16为本申请第四实施例提供的储能装置的端盖组件的分解结构图；
图17为图16所示的端盖组件的另一角度的分解结构图；
图18为图16所示端盖组件的部分剖面结构示意图；
图19为本申请第五实施例提供的储能装置的端盖组件的分解结构图；
图20为图19所示的端盖组件的另一角度的分解结构图；
图21为图19所示端盖组件的部分剖面结构示意图。
附图标记：储能系统1000；电能转换装置600；用户负载500；储能装置400；端盖组件100；壳体200；端盖10；防爆阀20；保护件21；第二绝缘件30；极柱组件40；密封件50；正面111；背面112；通孔12；加强筋13；泄压孔14；注液孔15；卡持槽16；限位部分121；导向部分122；卡持槽部161；第一通孔12A；第二通孔12B；第一卡持槽16A；第二卡持槽 16B；第一面311；第二面312；透气部分32；透气孔321；安装孔35；容置槽33；进液孔37；第一安装孔35A；第二安装孔35B；第一容置槽33A；第二容置槽33B；极柱43；第一绝缘件44；底板45；主体441；卡持件440；第一表面443；第二表面444；周面449；定位孔442；定位面445；卡持凸起446；第一卡持段447；第二卡持段448；第三表面4471；第四表面4472；第五表面4481；外侧面4482；顶面4483；导向面4484；固定孔451；固定面452；柱体部431；法兰部432；限位面433；第一金属部434；第二金属部435；载座436；凸起437；本体438；承载部439；承载槽4381；第一极柱组件40A；第二极柱组件40B；第一密封件50A；第二密封件50B；第一限位部10A；第二限位部30A；盲孔18；第一盲孔18A；第二盲孔18B；定位柱38；第一定位柱38A；第二定位柱38B；安装槽181；凸包183；第一安装槽181A；第二安装槽181B；凸台383；第一凸台383A；第二凸台383B；转接片60；焊接孔63；第一转接片60A；第二转接片60B；第一焊接孔63A；第二焊接孔63B；凸条193；凹槽191；第一凸条193A；第二凸条193B；定位槽391；第一定位槽391A；第二定位槽391B；凸环393；第一凸环393A；第二凸环393B；容纳槽65；第一容纳槽65A；第二容纳槽65B。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
由于人们所需要的能源都具有很强的时间性和空间性，为了合理利用能源并提高能量的利用率，需要通过一种介质或者设备，把一种能量形式用同一种或者转换成另外一种能量形式存储起来，基于未来应用需要再以特定能量形式释放出来。众所周知，要实现碳中和的大目标，目前绿色电能的产生主要途径是发展光伏、风电等绿色能源来替代化石能源。
目前绿色电能的产生普遍依赖于光伏、风电、水势等，而风能和太阳能等普遍存在间歇性强、波动性大的问题，会造成电网不稳定，用电高峰电不够，用电低谷电太多，不稳定的电压还会对电力造成损害，因此可能因为用电需求不足或电网接纳能力不足，引发“弃风弃光”问题，要解决这些问题须依赖储能。即将电能通过物理或者化学的手段转化为其他形式的能量存储起来，在需要的时候将能量转化为电能释放出来。简单来说，储能就类似一个大型“充电宝”，在光伏、风能充足时，将电能储存起来，在需要时释放储能的电力。
以电化学储能为例，本申请的实施例提供一种储能装置，储能装置内设有一组化学电池，主要是利用化学电池内的化学元素做储能介质，充放电过程伴随储能介质的化学反应或者变化，简单说就是把风能和太阳能产生的电能存在化学电池中，在外部电能的使用达到高峰时再将存储的电量释放出来使用，或者转移给电量紧缺的地方再使用。
目前的储能(即能量存储)应用场景较为广泛，包括发电侧储能、电网侧储能、可再生能源并网储能以及用户侧储能等方面，对应的储能装置的种类包括有：
(1)应用在电网侧储能场景的大型储能集装箱，其可作为电网中优质的有功无功调节电源，实现电能在时间和空间上的负荷匹配，增强可再生能源消纳能力，并在电网系统备用、缓解高峰负荷供电压力和调峰调频方面意义重大；
(2)应用在用户侧的工商业储能场景(银行、商场等)的中小型储能电柜以及应用在用户侧的家庭储能场景的户用小型储能箱，主要运行模式为“削峰填谷”。由于根据用电量需求 在峰谷位置的电费存在较大的价格差异，用户有储能设备后，为了减少成本，通常在电价低谷期，对储能柜/箱进行充电处理；电价高峰期，再将储能设备中的电放出来进行使用，以达到节省电费的目的。另外，在边远地区，以及地震、飓风等自然灾害高发的地区，家用储能装置的存在，相当于用户为自己和电网提供了备用电源，免除由于灾害或其他原因导致的频繁断电带来的不便。
请参阅图1，图1是本申请实施例提供的储能系统1000的应用场景图。
如图1，本申请实施例以用户侧储能中的家用储能场景为例进行说明，但应该当理解本申请所提供的储能系统1000并不限定于家用储能场景。本实施例中，储能系统1000可以为户储系统。储能系统1000包括电能转换装置600、用户负载500和储能装置400。其中，储能装置400作为一小型储能箱，可通过壁挂方式安装于室外墙壁。示例性的，电能转换装置600可以为光伏板。电能转换装置600可以在电价低谷时期将太阳能转换为电能。储能装置400用于储存该电能并在电价高峰时供给路灯和家用电器等用户负载500进行使用，或者在电网断电/停电时进行供电。本实施例中，储能装置400可以但不限于为单体电池、电池模组、电池包和电池系统等。示例性的，当该储能装置400为单体电池时，其可为圆柱电池，也可以为方形电池。
请一并参阅图2，图2为本申请第一实施例提供的储能装置400的结构示意图。
本实施例中储能装置400以方形电池为例进行说明。可以理解，储能装置400可包括但不限于单体电池、电池模组、电池包、电池系统等，本申请实施例提供的储能装置400的实际应用场景可以为但不限于为所列举产品，还可以是其他应用场景，本申请实施例不对电池的应用场景做严格限制。
其中，为方便描述，定义图1所示储能装置400的长度方向为X轴方向，储能装置400的宽度方向为Y轴方向，储能装置400的高度方向为Z轴方向，X轴方向、Y轴方向和Z轴方向两两相互垂直。
储能装置400包括端盖组件100、壳体200和电极组件(图2未示)。壳体200包括开口和容纳腔，电极组件容纳于容纳腔内，端盖组件100安装于壳体200，且覆盖开口。
请结合参阅图3至图5，图3为图2所示的端盖组件100的结构示意图，图4为图3所示端盖组件100的分解结构图，图5为图3所示端盖组件100的另一角度的分解结构图。
其中，端盖组件100的长度方向与储能装置400的长度方向相同，即X轴方向，端盖组件100的宽度方向与储能装置400的宽度方向相同，即Y轴方向，端盖组件100的厚度方向与储能装置400的高度方向相同，即Z轴方向。
端盖组件100包括端盖10、防爆阀20、保护件21、第二绝缘件30、极柱组件40和密封件50。防爆阀20安装于端盖10，用于防止储能装置400在使用过程中爆炸。保护件21安装于端盖10，用于保护防爆阀20，避免外部环境及外力对防爆阀20造成破坏。第二绝缘件30安装于端盖10的厚度方向(图示Z轴方向)上的一侧。极柱组件40依次穿过第二绝缘件30和端盖10，且可拆卸地安装于第二绝缘件30和端盖10。密封件50套设于极柱组件40，且夹持于极柱组件40和端盖10之间，以绝缘隔离极柱组件40和端盖10。
本实施例中，端盖10呈长条形板状。端盖10包括正面111和背面112，正面111和背面112沿着端盖10的厚度方向相背设置。端盖10设有通孔12、泄压孔14、注液孔15和卡持槽16。通孔12、泄压孔14和注液孔15均沿端盖10的厚度方向贯穿端盖10，即通孔12、泄压孔14和注液孔15均贯穿正面111和背面112。
请一并参阅图6，图6为图4所示的端盖10的部分剖面结构图。
本实施例中，通孔12均为圆形孔。通孔12包括限位部分121和导向部分122，导向部分122位于限位部分121朝向第二绝缘件30的一侧，且与限位部分121连通。限位部分121自正面111向背面112的方向凹陷。导向部分122自背面112向正面111的方向凹陷。导向部分122的孔径沿凹陷方向(图示Z轴正方向)逐渐减小，用于方便极柱组件40的装配。换言之，导向部分122为锥形孔，导向部分122的孔壁面与限位部分121的孔壁面之间的夹角为钝角。
卡持槽16环绕通孔12设置，且与通孔12连通。卡持槽16的开口位于端盖10的正面111。卡持槽16自端盖10的正面111向背面112凹陷，且贯穿通孔12的孔壁面，以与通孔12连通。本实施例中，卡持槽16包括六个卡持槽部161，六个卡持槽部161环绕通孔12彼此间隔设置。
请继续参阅图4和图5，本实施例中，通孔12和卡持槽16均为两个。两个通孔12分别为第一通孔12A和第二通孔12B。沿端盖10的长度方向(图示X轴方向)，第一通孔12、注液孔15、泄压孔14和第二通孔12B依次间隔排列。其中，泄压孔14位于端盖10的中部，第一通孔12和第二通孔12B分别位于端盖10长度方向的两端，注液孔15位于泄压孔14和第一通孔12之间。两个卡持槽16包括第一卡持槽16A和第二卡持槽16B。第一卡持槽16A环绕第一通孔12A设置，且与第一通孔12A连通。第二卡持槽16B环绕第二通孔12B设置，且与第二通孔12B连通。
一种实施例中，端盖10还设有加强筋13，加强筋13自端盖10的背面112远离正面111的方向凸出。加强筋13大致呈目形，部分加强筋13环绕设于端盖10的周缘，部分加强筋13沿端盖10的宽度方向连接设于端盖10两侧的加强筋13，且位于第一通孔12A与泄压孔14之间，并与第一通孔12A、泄压孔14间隔设置；部分加强筋13沿端盖10的宽度方向连接设于端盖10两侧的加强筋13，且设于第二通孔12B与注液孔15之间，并与第二通孔12B、注液孔15间隔设置。示例性的，可通过自正面111向背面112的方向冲压端盖10的方式形成加强筋13，且在正面111形成冲压槽13A，此时加强筋13的背面即冲压槽13A的槽底面。端盖10的背面112凸设加强筋13，有利于提升端盖10在其厚度方向的结构强度，避免端盖10被储能装置400的内部压力挤压变形，影响防爆阀20的正常爆开，使得储能装置400的防爆措施失效。
防爆阀20安装于端盖10，且覆盖泄压孔14，以封堵泄压孔14。其中，防爆阀20覆盖泄压孔14朝向第二绝缘件30的开口。保护件21安装于端盖10，且覆盖泄压孔14背离第二绝缘件30的开口。
如图4和图5所示，第二绝缘件30大致呈矩形薄板状。第二绝缘件30包括第一面311和第二面312，第一面311和第二面312沿着第二绝缘件30的厚度方向(图示Z轴方向)相背设置。第一面311与端盖10的背面112相对设置，第二面312与端盖10的正面111相背设置。第二绝缘件30包括透气部分32，透气部分32位于第二绝缘件30的中部，并与防爆阀20相对设置。透气部分32设有多个透气孔321，透气孔321沿第二绝缘件30的厚度方向贯穿第二绝缘件30。多个透气孔321用于将电极组件产生的压力气体通向防爆阀20。透气孔321的形状可以是圆形、矩形或扇形，具体形状不做限定。
第二绝缘件30设有安装孔35、容置槽33和进液孔37。安装孔35沿第二绝缘件30的厚度方向(Z轴方向)贯穿第二绝缘件30，且与端盖10的通孔12连通。容置槽33围绕安装孔35设置，且与安装孔35连通。容置槽33自第二绝缘件30的第二面312向第一面311的方向凹陷，且贯穿安装孔35的孔壁面，以与安装孔35连通。
本实施例中，安装孔35和容置槽33均为两个。两个安装孔35分别为第一安装孔35A和第二安装孔35B。沿第二绝缘件30的长度方向(图示X轴方向)，第一安装孔35A和第二安装孔35B分别位于第二绝缘件30的相对两端。其中，第一安装孔35A与第一通孔12A相对设置，且与第一通孔12A连通，第二安装孔35B与第二通孔12B相对设置，且与第二通孔12B连通。
两个容置槽33分别为第一容置槽33A和第二容置槽33B。第一容置槽33A围绕第一安装孔35A设置，第二容置槽33B围绕第二安装孔35B设置。其中，第一容置槽33A与第一安装孔35A连通，第二容置槽33B与第二安装孔35B连通。进液孔37位于第一安装孔35A与透气部分32之间，且与第一安装孔35A和透气部分32均间隔设置。其中，进液孔37与注液孔15相对设置，且与注液孔15连通。
请一并参阅图7，图7为图4所示的极柱组件40的分解结构图。
本实施例中，极柱组件40包括极柱43、第一绝缘件44和底板45，极柱43穿过第一绝缘件44和底板45，且与底板45固定连接。其中，第一绝缘件44夹持于极柱43和底板45之间。
第一绝缘件44采用塑胶制成。其中，第一绝缘件44通过注塑工艺制成。可以理解的是，可利用注塑模具能够连续生产出多件第一绝缘件44，相较于现有采用注塑包胶工艺形成绝缘件，能够显著提升生产效率，降低制造成本。
第一绝缘件44包括主体441和卡持件440，卡持件440固定连接于主体441。主体441大致呈圆环状。主体441包括第一表面443、第二表面444和周面449，第一表面443和第二表面444沿着主体441的厚度方向(图示Z轴方向)相背设置，周面449连接于第一表面443和第二表面444之间。第一表面443背向底板45，第二表面444朝向底板45。
主体441设有定位孔442，定位孔442大致呈跑道形。定位孔442位于主体441的中部，且沿第一绝缘件44的厚度方向(Z轴方向)贯穿主体441。定位孔442的孔壁面包括两个定位面445，定位面445连接于第一表面443和第二表面444之间。两个定位面445间隔且相对设置。定位面445能够使得定位孔442的形状并非完整的圆形，从而限制极柱43绕其轴线方向(图示Z轴方向)发生旋转。示例性的，两个定位面445可以是平面。
卡持件440固定连接于第一表面443，且用于与卡持槽16卡持。卡持件440包括多个卡持凸起446，卡持凸起446设于主体441的第一表面443。多个卡持凸起446围绕主体441的第一表面443的边缘间隔设置。本实施例中，卡持凸起446有六个，六个卡持凸起446分别用于与六个卡持槽16卡持。
其中，每一卡持凸起446均包括第一卡持段447和第二卡持段448，第二卡持段448连接于第一卡持段447。第一卡持段447凸设于主体441的第一表面443，第二卡持段448连接于第一卡持段447远离第一表面443的一端，且自第一卡持段447向背离定位孔442的方向延伸。其中，第二卡持段448与第一卡持段447呈夹角设置。示例性的，第一卡持段与第二卡持段之间的夹角在90度左右。换言之，卡持凸起446大致呈倒“L”型。
第一卡持段447包括第三表面4471和第四表面4472，第三表面4471和第四表面4472沿着第一卡持段447的厚度方向相背设置，第三表面4471背向定位孔442，第四表面4472朝向定位孔442，且第四表面4472与第一表面443呈夹角连接。示例性的，第四表面4472与第一表面443之间的夹角在90度左右。本实施例中，卡持凸起446的第三表面4471与主体441的周面449共面。
第二卡持段448包括第五表面4481、外侧面4482、顶面4483和导向面4484。沿第一绝 缘件44的高度方向(图示Z轴方向)，第五表面4481和顶面4483相背设置，顶面4483背向主体441设置。外侧面4482为第二卡持段448背向定位孔442的表面，且相对第三表面4471凸出。导向面4484连接于顶面4483和外侧面4482之间。其中，导向面4484用以方便极柱组件40与端盖10的装配和拆卸。
底板45大致呈板状，且由导电材料制成。其中，底板45可为焊接环。底板45设有固定孔451，固定孔451大致呈跑道形。固定孔451位于底板45的中部，且固定孔451沿底板45的厚度方向(Z轴方向)贯穿底板45。底板45位于主体441的第二表面444的一侧。固定孔451与定位孔442相对设置，且与定位孔442连通。固定孔451的孔壁面包括两个固定面452，两个固定面452间隔且相对设置。固定面452使得固定孔451的形状并非完整的圆形，能够限制极柱43绕其轴线方向(图示Z轴方向)发生旋转。示例性的，两个固定面452可以为平面，每一固定面452可与一个定位面445共面。
极柱43由导电材料制成。极柱43包括柱体部431和法兰部432，法兰部432连接于柱体部431的一端。柱体部431大致呈圆柱状，柱体部431的周侧面包括两个限位面433，两个限位面433间隔且相背设置，用以与固定面452和定位面445配合，来限制极柱43沿其轴线方向(图示Z轴方向)发生旋转。示例性的，限位面433为平面。法兰部432大致呈圆盘状，法兰部432的周面相对于柱体部431的周面凸出。
请参阅图8，图8为图7所示的极柱43在另一种实施方式下的分解结构图。
极柱43包括第一金属部434和第二金属部435。第一金属部434与第二金属部435固定连接。第一金属部434包括载座436和凸起437，凸起437凸设于载座436的中部。凸起437呈圆柱状，载座436呈圆盘状。第二金属部435包括本体438和承载部439，承载部439固定连接于本体438的一端，且环绕本体438设置。本体438大致呈圆柱形，且设有承载槽4381。承载槽4381大致呈圆形，承载槽4381自本体438一端面凹陷，以承载第一金属部434的凸起437。承载部439大致呈圆环状，且凸设于本体438的周侧面。
第一金属部434的凸起437位于第二金属部435的承载槽4381，第一金属部434的载座436抵持于承载部439的端面。第一金属部434的载座436的周面与第二金属部435的承载部439的周面共同组成限位部462的周面，第二金属部435的本体438的周面为柱体部431的周面。请一并参阅图9，图9为图4所示的极柱组件40的剖面结构图。
极柱43的柱体部431依次穿过主体441的定位孔442和底板45的固定孔451，每一限位面433抵接一个定位面445和一个固定面452，以限制极柱43沿其轴线方向(图示Z轴方向)发生旋转，提高了极柱43的抗扭强度。柱体部431远离法兰部432的一端安装并固定于固定孔451内。柱体部431的周侧面与固定孔451的孔壁面之间通过焊接固定，并形成焊接部S。示例性的，在柱体部431的周侧面与固定孔451孔壁面之间进行拼缝焊，以形成焊接部S，使柱体部431与底板45固定连接，由于拼缝焊的焊机功率较低，能够满足节能减排的要求。法兰部432抵持于主体441的第一表面443，第一绝缘件44夹持于法兰部432与底板45之间。
法兰部432的周面与卡持凸起446的第四表面4472间隔且相对设置。法兰部432的周面与卡持凸起446的第四表面4472之间的间隙形成形变空间，形变空间能够方便卡持凸起446朝向法兰部432发生变形，从而利于极柱组件40的拆卸和装配。
请一并参阅图10和图11，图10为图3所示的端盖组件100的剖面结构图，图11为图10所示的M区域的放大结构图。
极柱组件40的第一绝缘件44和极柱43依次穿过第二绝缘件30的安装孔35和端盖10 的导向部分122，并由导向部分122导入限位部分121，卡持件440卡持于卡持槽16，底板45容置于第二绝缘件30的容置槽33内，以实现极柱组件40对第二绝缘件30和端盖10的夹持。其中，六个卡持凸起446分别卡持于六个卡持槽部161，每一卡持凸起446的第五表面4481压接于卡持槽部161的槽底面。在其他实施例中，每一卡持凸起446的顶面4483可以位于端盖10的正面111朝向第二绝缘件30的一侧，或者也可以与正面111平齐。换言之，顶面4483可以平齐或者低于端盖10的正面111，以减小端盖组件100的厚度。每一卡持凸起446的第三表面4471抵接于限位部分121的孔壁面。底板45朝向第一绝缘件44的部分表面压接于容置槽33的槽底面，底板45的部分侧面与容置槽33的槽侧面相对设置。
请继续参阅图4和图5，本实施例中，极柱组件40有两个，两个极柱组件40分别为第一极柱组件40A和第二极柱组件40B。第一极柱组件40A安装于第二绝缘件30的第一安装孔35A和端盖10的第一通孔12A，且与第一卡持槽16A相互卡持，以可拆卸地安装于端盖10。第二极柱组件40B安装于第二绝缘件30的第二安装孔35B和端盖10的第二通孔12B，且与第二卡持槽16B相互卡持，以可拆卸地安装于端盖10。极柱组件40能够通用于多个型号的端盖组件100，因而能够减少零部件的开发成本以及制程管控成本，从而降低储能装置400的制造成本。
其中，第一极柱组件40A为正极极柱组件，第一极柱组件40A的极柱43和底板45均由金属铝制成。第二极柱组件40B为负极极柱组件。第二极柱组件40B的极柱43包括第一金属部434和第二金属部435。第一金属部434由铝制成，第二金属部435由铜制成。第二极柱组件40B的极柱43由铜铝板冲压成型。第二极柱组件40B的底板45由铜制成。在其他实施例中，也可以是第一极柱组件40A为负极极柱组件，第二极柱组件40B为正极极柱组件，对应关系不作具体限制。
请继续参照图4、图5和图11，本实施例中，密封件50为采用塑胶等绝缘材料制成的密封圈。密封件50套设于主体441的周面，且与主体441间隔设置，并夹持于端盖10的背面112与底板45之间，不仅可以绝缘极柱组件40和端盖10，还可以提升端盖10与极柱组件40的安装密封性，从而提升端盖组件100装配后的密封性。
本实施例中，密封件50有两个，两个密封件50分别为第一密封件50A和第二密封件50B。第一密封件50A套设于第一极柱组件的主体441的周面，并夹持于端盖10的背面112与第一极柱组件的底板45之间。第二密封件50B套设于第二极柱组件的主体441的周面，并夹持于端盖10的背面112与第二极柱组件的底板45之间。
请继续参照图11，在本实施例中，极柱组件40套上密封件50后固定于工装治具中，再依次将第二绝缘件30和端盖10套设于极柱组件40，并利用压力机对端盖10施加向下的压力(Z轴负方向)，使得极柱组件40的卡持件440经由导向部分122导向限位部分121，并卡持于卡持槽16内。极柱组件40通过下压卡持进行装配，大大降低了端盖组件100的装配难度和成本，提高了装配的效率，也大大提升了端盖组件100装配实现自动化批量连续生产的可能性。
同时，由于密封件50位于安装孔35的孔壁面与第一绝缘件44的周面449之间，且与第一绝缘件44间隔设置，所以第一绝缘件44产生变形时不会减少密封件50的压缩量而产生泄露电解液的风险，也不会出现极柱43沉入第一绝缘件44，导致储能装置400与母排(BUS bar)之间出现焊接不良的情形。
请一并参阅图9，另外，由于极柱43的法兰部432的周面与第一绝缘件44的卡持凸起446的第四表面4472之间留有形变空间，所以将插销插入卡持槽部161时，能够驱使卡持凸 起446沿着第一绝缘件44的径向方向朝法兰部432变形，并退出卡持槽部161。当六个卡持槽部161均插有插销时，六个卡持凸起446均向法兰部432变形回缩，退出与卡持槽部161的卡持。变形回缩后的极柱组件40A能够较容易地退出通孔12和安装孔35，解除与第二绝缘件30、端盖10的卡持，从端盖组件100中拆卸出来。
综上所述，极柱组件40为可拆卸模块，即极柱组件40能够解除与第二绝缘件30和端盖10的卡持，从端盖组件100中拆卸出来。在本实施例中，端盖组件100通过下压端盖10卡持极柱组件40进行装配，所以当极柱组件40从端盖组件100中卸下后，端盖10、第二绝缘件30以及密封件50均处于活动状态。端盖组件100在生产过程中，若出现不良品时，例如气密性不良、第二绝缘件30或端盖10不良现象，能够及时拆装返工并更换相应的部件，显著降低了不良品报废的成本，且在本申请提供的端盖组件100中，端盖10与第二绝缘件30可分离，有利于报废后不良品的分类，进一步降低不良品的报废成本。
端盖组件100还包括转接片(图1至图11未示)，转接片连接于极柱组件40背离第二绝缘件30的一侧。转接片大致呈薄片状，由导电材料制成，用于电连接极柱组件40和电极组件。转接片固定连接于底板45背离第一绝缘件44的表面。本实施例中，转接片与底板45通过穿透焊连接。本实施例中，转接片为两个，两个转接片为第一转接片和第二转接片。第一转接片电连接第一极柱组件40A和电极组件，第二连接片电连接第二极柱组件40B和电极组件。
请一并参阅图12至图13，图12为本申请第二实施例提供的储能装置中端盖组件100的部分结构示意图，图13为图12所示的极柱组件40的分解结构图。
如图13所示，第二实施例的端盖组件100与第一实施例的端盖组件100的不同之处在于，端盖10的卡持槽16为环绕通孔12设置的环槽。极柱组件40中，卡持凸起446的数量为二十四，二十四个卡持凸起446围绕主体441的第一表面443的边缘间隔设置。
当极柱组件40A依次穿过第二绝缘件30的安装孔35和端盖10的通孔12后，卡持件440卡持于卡持槽16，每一卡持凸起446的第五表面4481压接于卡持槽部161的槽底面。每一卡持凸起446的第四表面4472抵接于限位部分121的孔壁面。
相较于第一实施例，第二实施例的极柱组件40采用更多卡持凸起446与环形的卡持槽16卡持，提高了极柱组件40经由导向部分122进入限位部分121时，第一绝缘件44上的推力强度，降低了极柱组件40与端盖10的卡持难度，提升了端盖组件100的装配效率。
请参阅图14和图15，图14为本申请第三实施例提供的储能装置的端盖组件100的分解结构图，图15为图14所示端盖组件100的另一角度的分解结构图。
第三实施例的端盖组件100与第一实施例的端盖组件100的不同之处在于，端盖10包括第一限位部10A，第一限位部10A设于端盖10朝向第二绝缘件30的表面，且围绕通孔12设置；第二绝缘件30包括第二限位部30A，第二限位部30A设于第二绝缘件30朝向端盖10的表面，且围绕安装孔35设置，并与第一限位部10A相互限位。
本实施例中，第一限位部10A为盲孔18，盲孔18自端盖10的背面112向正面111的方向凹陷。盲孔18有多个，多个盲孔18均环绕通孔12间隔设置。多个盲孔18包括多个第一盲孔18A和多个第二盲孔18B，多个第一盲孔18A环绕第一通孔12A间隔设置，多个第二盲孔18B环绕第二通孔12B间隔设置。示例性的，盲孔18为八个，第一盲孔18A和第二盲孔18B均为四个。
本实施例中，第二限位部30A为定位柱38，定位柱38凸设于第二绝缘件30的第一面311。定位柱38有多个，多个定位柱38均环绕安装孔35间隔设置，且与多个盲孔18一一对 应设置。多个定位柱38包括多个第一定位柱38A和多个第二定位柱38B，多个第一定位柱38A环绕第一安装孔35A间隔设置，且与多个第一盲孔18A一一对应设置，多个第二定位柱38B环绕第二安装孔35B间隔设置，且与多个第二盲孔18B一一对应设置。示例性的，定位柱38为八个，第一定位柱38A和四个第二定位柱38B均为四个。
在极柱组件40依次通过第一安装孔35和第一通孔12与第二绝缘件30及端盖10卡持后，第二绝缘件30的第一面311与端盖10的背面112相对设置，多个定位柱38分别插入多个盲孔18，能够限制第二绝缘件30和端盖10彼此在端盖组件100的长度方向(X轴方向)和宽度方向(Y轴方向)上的相对移动，提高端盖组件100的装配精度。另外，安装孔35周围的多个定位柱38和通孔12周围的多个盲孔18此时均围绕设置于极柱组件40周围，能够提高极柱组件40的抗扭强度，防止极柱组件40的极柱43被扭转破坏。
请参阅图16至图18，图16为本申请第四实施例提供的储能装置400的端盖组件100的分解结构图，图17为图16所示的端盖组件100的另一角度的分解结构图，图18为图16所示端盖组件100的部分剖面结构示意图。
第四实施例的端盖组件100与第三实施例的端盖组件100的不同之处在于，第一限位部10A为安装槽181，安装槽181自背面112向正面111的方向凹陷，且贯穿通孔12的孔壁面，以连通通孔12。其中，安装槽181为矩形凹槽。示例性的，可通过自背面112向正面111的方向冲压端盖10的方式形成安装槽181，且在正面111上形成凸包183，此时，凸包183的背面即安装槽181的槽底面。
本实施例中，安装槽181为两个，两个安装槽181分别为第一安装槽181A和第二安装槽181B，沿端盖10的长度方向(图示X轴方向)上，第一安装槽181A和第二安装槽181B分别位于端盖10的相对两端。其中，第一安装槽181A贯穿第一通孔12A的孔壁面，且与第一通孔12A连通，第二安装槽181B贯穿第二通孔12B的孔壁面，且与第二通孔12B连通。
本实施例中，第二限位部30A为凸台383，凸台383自第一面311朝远离第二面312的方向凸出，且与安装槽181对应设置。其中，凸台383为矩形凸起437。本实施例中，凸台383为两个，两个凸台383分别为第一凸台383A和第二凸台383B。沿第二绝缘件30的长度方向上，第一凸台383A和第二凸台383B分别位于第二绝缘件30的相对两端，第一凸台383A与第一安装槽181A对应设置，第二凸台383B与第二安装槽181B对应设置。
请参阅图18，第二绝缘件30和端盖10依次套设于极柱组件40时，第二绝缘件30的第一面311与端盖10的背面112相对，凸台383安装于安装槽181，能够限制第二绝缘件30和端盖10在端盖组件100的长度方向(X轴方向)和宽度方向(Y轴方向)上的相对移动，提高端盖组件100的装配精度。另外，矩形的凸台383安装于矩形的安装槽181，还能够限制第二绝缘件30和端盖10的相对转动，以提升穿过凸台383和安装槽181的极柱组件40的抗扭强度。同时，在本实施例中，在极柱组件40及周围的凸包183以外的区域，端盖组件100的厚度较薄，有助于提升储能装置400的电芯容量，提高储能装置400的储电容量。
一并参阅图16，转接片60设有焊接孔63，焊接孔63沿转接片60的厚度方向贯穿转接片60。示例性的，焊接孔63为矩形孔。转接片60位于第二绝缘件30背离端盖10的一侧，转接片60套设于底板45的周缘，焊接孔63的孔壁面与底板45的周面之间通过焊接固定，形成焊接部Q。本实施例中，在底板45的周面与焊接孔63孔壁面之间进行拼缝焊，使底板45与转接片60固定连接。相较于穿透焊，拼缝焊的焊机功率更低，更能满足节能减排的要求。
请继续参阅图16和图18，本实施例中，转接片60有两个，两个转接片分别为第一转接 片60A和第二转接片60B。第一转接片60A上设有第一焊接孔63A，第一转接片60A套设于第一极柱组件40A的底板45的周缘，并与第一极柱组件40A的底板45焊接固定。第二转接片60B上设有第二焊接孔63B，第二转接片60B套设于第二极柱组件40B的底板45的周缘并与第二极柱组件40B的底板45焊接固定。
请参阅图19至图21，图19为本申请第五实施例提供的储能装置400的端盖组件100的分解结构图，图20为图19所示的端盖组件100的另一角度的分解结构图，图21为图19所示端盖组件100的部分剖面结构示意图。
第五实施例的端盖组件100与第四实施例的端盖组件100的不同之处在于，第一限位部10A为凸条193，凸条193环绕通孔12设置，且与通孔12间隔设置。凸条193自端盖10的背面112远离正面111的方向凸出。其中，凸条193可呈方形环状。示例性的，可通过自正面111向背面112的方向冲压端盖10的方式形成凸条193，且在正面111形成凹槽191，此时凸条193的背面即凹槽191的槽底面。本实施例中，凸条193为两个，两个凸条193分别为第一凸条193A和第二凸条193B，沿端盖10的长度方向(图示X轴方向)上，第一凸条193A和第二凸条193B分别位于端盖10的相对两端。其中，第一凸条193A环绕第一通孔12A设置，第二凸条193B环绕第二通孔12B设置。
本实施例中，第二限位部30A为定位槽391，定位槽391环绕安装孔35设置，且与安装孔35间隔设置。定位槽391自第二绝缘件30的第一面311向第二面312的方向凹陷。示例性的，定位槽391为矩形环槽。其中，定位槽391为两个，两个定位槽391分别为第一定位槽391A和第二定位槽391B。沿第二绝缘件30的长度方向上，第一定位槽391A和第二定位槽391B分别位于第二绝缘件30的相对两端。第一定位槽391A环绕第一安装孔35A设置，且与第一凸条193对应设置。第二定位槽391B环绕第二安装孔35B设置，且与第一凸条193对应设置。
第二绝缘件30还设有凸环393，凸环393环绕安装孔35设置，且与安装孔35间隔设置。凸环393自第二绝缘件30的第二面312向背离第一面311的方向凸出。其中，凸环393在第一面311上的投影覆盖定位槽391。示例性的，凸环393可呈方形环状。
本实施例中，凸环393有两个，两个凸环393分别为第一凸环393A和第二凸环393B，沿第二绝缘件30的长度方向(图示X轴方向)上，第一凸环393A和第二凸环393B分别位于第二绝缘件30的相对两端。其中，第一凸环393A环绕第一安装孔35A设置，第二凸环393B环绕第二安装孔35B设置。
请一并参阅图21，第二绝缘件30和端盖10依次套设于极柱组件40时，第二绝缘件30的第一面311与端盖10的背面112相对，两个凸条193分别安装于两个定位槽391内，能够限制第二绝缘件30和端盖10在端盖组件100的长度方向(X轴方向)和宽度方向(Y轴方向)上的相对移动，提高端盖组件100的装配精度，还能够限制第二绝缘件30和端盖10的相对转动，以提升极柱组件40的抗扭强度。
继续参阅图19和图21，转接片60还设有容纳槽65，容纳槽65围绕焊接孔63设置，且与焊接孔63间隔设置。容纳槽65自转接片60朝向第二绝缘件30的表面向背离第二绝缘件30的方向凹陷。其中，容纳槽65与凸环393对应设置。示例性的，容纳槽65为矩形环槽。
转接片60位于第二绝缘件30背离端盖10的一侧，转接片60套设于底板45的周缘，焊接孔63的孔壁面与底板45的周面之间通过焊接固定，形成焊接部Q。第二绝缘件30的两个凸环393分别安装于两个转接片60的容纳槽65，以限制转接片60相对于第二绝缘件30的相对旋转运动，降低了转接片60对极柱组件40的底板45可能施加的扭转应力，避免了极柱 组件40因扭转失效。
本实施例中，第一转接片60A上设有第一容纳槽65A，第一转接片60A套设于第一极柱组件40A的底板45的周缘，且第一凸环393A安装于第一容纳槽65A。第二转接片60B上设有第二容纳槽65B，第二转接片60B套设于第二极柱组件40B的底板45的周缘，且第二凸环393B安装于第二容纳槽65B。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (18)

  1. 一种极柱组件，其特征在于，包括极柱、第一绝缘件和底板；
    所述第一绝缘件设有定位孔，所述定位孔沿所述第一绝缘件的厚度方向贯穿所述第一绝缘件；
    所述底板位于所述第一绝缘件厚度方向上的一侧，所述底板设有固定孔，所述固定孔沿所述底板的厚度方向贯穿所述底板，且与所述定位孔连通；
    所述极柱包括柱体部和法兰部，所述法兰部连接于所述柱体部的一端，所述法兰部的周面相对于所述柱体部的周面凸出；
    所述柱体部穿过所述定位孔和所述固定孔，且所述柱体部远离所述法兰部的一端与所述底板固定连接。
  2. 根据权利要求1所述的极柱组件，其特征在于，所述柱体部的周侧面与所述固定孔的孔壁面之间通过焊接固定。
  3. 根据权利要求1所述的极柱组件，其特征在于，所述定位孔和所述固定孔均为跑道形孔，所述定位孔的孔壁面包括至少一个定位面，所述定位面为平面，所述固定孔的孔壁面包括至少一个固定面，所述固定面为平面，所述极柱的周面包括至少一个限位面，所述限位面为平面，所述限位面抵接所述定位面和所述固定面。
  4. 根据权利要求1-3任一项所述的极柱组件，其特征在于，所述极柱包括第一金属部和第二金属部，所述第一金属部由铝制成，所述第二金属部由铜制成，所述极柱为由铜铝板冲压成型的结构件。
  5. 一种端盖组件，其特征在于，包括端盖、第二绝缘件和如权利要求1-4任一项所述的极柱组件；
    所述端盖设有通孔和卡持槽，所述通孔沿所述端盖的厚度方向贯穿所述端盖，所述卡持槽的开口位于所述端盖背离所述第二绝缘件的表面，所述卡持槽环绕所述通孔设置，且与所述通孔连通；
    所述第二绝缘件设有安装孔，所述安装孔沿所述第二绝缘件的厚度方向贯穿所述第二绝缘件；
    所述极柱组件穿设于所述通孔和所述安装孔，所述第一绝缘件包括主体和卡持件，所述主体设有所述定位孔，所述卡持件固定连接于所述主体远离所述底板的一侧，所述卡持件与所述卡持槽相互卡持。
  6. 根据权利要求5所述的端盖组件，其特征在于，所述主体夹持于所述法兰部和所述底板之间，所述卡持件与所述法兰部间隔设置。
  7. 根据权利要求6所述的端盖组件，其特征在于，所述端盖组件还包括密封件，所述密封件套设于所述极柱组件，且夹持于所述底板和所述端盖之间，并与所述第一绝缘件间隔设置。
  8. 根据权利要求6所述的端盖组件，其特征在于，所述卡持件包括外侧面、顶面和导向面，所述顶面背离所述主体设置，所述外侧面背离所述定位孔设置，所述导向面连接于所述外侧面和所述顶面之间。
  9. 根据权利要求8所述的端盖组件，其特征在于，所述通孔包括限位部分和导向部分，所述导向部分位于所述限位部分朝向所述第二绝缘件的一侧，且与所述限位部分连通，所述导向部分的孔径沿凹陷方向逐渐减小，所述第一绝缘件经所述导向部分导入所述限位部分内。
  10. 根据权利要求5所述的端盖组件，其特征在于，所述端盖包括第一限位部，所述第一限位部设于所述端盖朝向所述第二绝缘件的表面，且围绕所述通孔设置；
    所述第二绝缘件包括第二限位部，所述第二限位部设于所述第二绝缘件朝向所述端盖的表面，且围绕所述安装孔设置，并与所述第一限位部相互限位。
  11. 根据权利要求10所述的端盖组件，其特征在于，所述第一限位部包括多个盲孔，多个所述盲孔环绕所述通孔间隔设置；
    所述第二限位部包括多个定位柱，多个所述定位柱间隔设置于所述安装孔周围；每一所述定位柱插设于一个所述盲孔。
  12. 根据权利要求10所述的端盖组件，其特征在于，所述第一限位部包括安装槽，所述安装槽围绕设置于所述通孔周围，所述第二限位部包括凸台，所述凸台围绕设置于所述安装孔周围；所述凸台安装于所述安装槽内。
  13. 根据权利要求10所述的端盖组件，其特征在于，所述第一限位部包括凸条，所述凸条环绕所述通孔设置，所述第二限位部包括定位槽，所述定位槽环绕所述安装孔设置；所述凸条安装于所述定位槽内。
  14. 根据权利要求5-13任一项所述的端盖组件，其特征在于，所述端盖组件还包括转接片，所述转接片设有焊接孔，所述焊接孔沿所述转接片的厚度方向贯穿所述转接片；所述转接片套设于所述底板的周缘，且与所述底板焊接。
  15. 根据权利要求14所述的端盖组件，其特征在于，所述转接片还设有容纳槽，所述容纳槽围绕所述焊接孔设置，且与所述焊接孔间隔设置，并自所述转接片朝向所述第二绝缘件的表面向背离所述第二绝缘件的方向凹陷；
    所述第二绝缘件还设有凸环，所述凸环环绕所述安装孔设置，且与所述安装孔间隔设置，并自所述第二绝缘件背离所述端盖的表面向背离所述端盖的方向凸出；
    所述凸环安装于所述容纳槽。
  16. 根据权利要求5所述的端盖组件，其特征在于，所述端盖设有泄压孔，所述泄压孔沿所述端盖的厚度方向贯穿所述端盖，且与所述通孔间隔设置；
    所述端盖设有加强筋，所述加强筋凸设于所述端盖朝向所述第二绝缘件的表面，部分所 述加强筋环绕设于所述端盖的周缘，部分所述加强筋沿所述端盖的宽度方向连接设于所述端盖两侧的所述加强筋，且位于所述通孔与所述泄压孔之间，并与所述通孔、所述泄压孔间隔设置。
  17. 一种储能装置，其特征在于，包括壳体、电极组件和如权利要求5-16任一项所述的端盖组件，所述壳体具有开口，所述壳体开设有容纳腔，所述电极组件容纳于所述容纳腔，所述端盖组件安装于所述壳体一端的所述开口处。
  18. 一种用电设备，其特征在于，包括如权利要求17所述的储能装置，所述储能装置为所述用电设备供电。
PCT/CN2024/075264 2023-06-12 2024-02-01 极柱组件、端盖组件、储能装置及用电设备 Ceased WO2024255271A1 (zh)

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
CN116435721B (zh) * 2023-06-12 2024-05-24 深圳海辰储能科技有限公司 极柱组件、端盖组件、储能装置及用电设备
CN117080634B (zh) * 2023-09-15 2023-12-22 厦门海辰储能科技股份有限公司 端盖组件、储能装置和用电设备
CN117219933B (zh) 2023-11-07 2024-03-08 深圳海辰储能科技有限公司 一种顶盖组件、二次电池、电池模组及用电设备
CN118040249A (zh) * 2024-03-27 2024-05-14 厦门海辰储能科技股份有限公司 极柱组件、储能装置及用电设备
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014116132A (ja) * 2012-12-07 2014-06-26 Mitsubishi Heavy Ind Ltd 固定構造、および、電池の製造方法
CN212366065U (zh) * 2020-04-26 2021-01-15 东莞塔菲尔新能源科技有限公司 一种电池顶盖装配结构
CN217589153U (zh) * 2022-05-19 2022-10-14 湖北亿纬动力有限公司 壳体组件和电池
CN116190937A (zh) * 2023-01-06 2023-05-30 安徽得壹能源科技有限公司 负极极柱、方形电池盖板组件、极芯承载装置及方形电池
CN116435721A (zh) * 2023-06-12 2023-07-14 深圳海辰储能控制技术有限公司 极柱组件、端盖组件、储能装置及用电设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002151022A (ja) * 2000-11-14 2002-05-24 Wako Denshi Kk 二次電池の蓋
CN108428826B (zh) * 2018-01-18 2023-12-29 宁德时代新能源科技股份有限公司 二次电池顶盖组件、二次电池及汽车
CN214153029U (zh) * 2021-01-07 2021-09-07 江西百思利新能源科技股份有限公司 二次电池顶盖及其二次电池
CN215266477U (zh) * 2021-04-28 2021-12-21 深圳市长盈精密技术股份有限公司 动力电池及其顶盖
CN113839128B (zh) * 2021-09-23 2023-01-24 厦门海辰储能科技股份有限公司 用于电池的顶盖组件、电池及储能装置
CN115000641B (zh) * 2022-08-04 2022-11-29 江苏时代新能源科技有限公司 端盖组件、电池单体、电池以及用电装置
CN115863932A (zh) * 2022-12-16 2023-03-28 厦门海辰储能科技股份有限公司 极柱组件、端盖组件、电池、储能装置和用电设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014116132A (ja) * 2012-12-07 2014-06-26 Mitsubishi Heavy Ind Ltd 固定構造、および、電池の製造方法
CN212366065U (zh) * 2020-04-26 2021-01-15 东莞塔菲尔新能源科技有限公司 一种电池顶盖装配结构
CN217589153U (zh) * 2022-05-19 2022-10-14 湖北亿纬动力有限公司 壳体组件和电池
CN116190937A (zh) * 2023-01-06 2023-05-30 安徽得壹能源科技有限公司 负极极柱、方形电池盖板组件、极芯承载装置及方形电池
CN116435721A (zh) * 2023-06-12 2023-07-14 深圳海辰储能控制技术有限公司 极柱组件、端盖组件、储能装置及用电设备

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