WO2024164271A1 - 端盖组件、储能装置和用电设备 - Google Patents

端盖组件、储能装置和用电设备 Download PDF

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Publication number
WO2024164271A1
WO2024164271A1 PCT/CN2023/075286 CN2023075286W WO2024164271A1 WO 2024164271 A1 WO2024164271 A1 WO 2024164271A1 CN 2023075286 W CN2023075286 W CN 2023075286W WO 2024164271 A1 WO2024164271 A1 WO 2024164271A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
bracket
wall
main
main body
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/CN2023/075286
Other languages
English (en)
French (fr)
Inventor
熊永锋
陈进强
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 Hairun New Energy Technology Co Ltd
Original Assignee
Xiamen Hithium Energy Storage Technology Co Ltd
Shenzhen Hairun New Energy 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 Hairun New Energy Technology Co Ltd filed Critical Xiamen Hithium Energy Storage Technology Co Ltd
Priority to PCT/CN2023/075286 priority Critical patent/WO2024164271A1/zh
Publication of WO2024164271A1 publication Critical patent/WO2024164271A1/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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/155—Lids or covers characterised by the material
    • H01M50/16—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • 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 an end cover assembly, an energy storage device and an electrical equipment.
  • the current energy storage devices are mainly rechargeable secondary batteries.
  • the common secondary batteries currently mainly include a shell, an electrode assembly and an end cap assembly.
  • the electrode assembly is housed inside, the end cap assembly closes the shell, and the electrode lugs of the electrode assembly are connected to the poles on the cover assembly.
  • the purpose of the present application is to provide an end cover assembly, an energy storage device and an electrical equipment that can improve safety performance.
  • the present application provides an end cover assembly for an energy storage device, the end cover assembly includes an explosion-proof valve bracket, the bracket includes a main body plate, a first wall plate and a second wall plate; the main body plate includes a first surface and a second surface, the second surface is opposite to the electrode assembly of the energy storage device; the first wall plate and the second wall plate are arranged on the first surface and are arranged opposite to each other in the length direction of the main body plate; the first wall plate extends along the thickness direction of the main body plate and on one side away from the second wall plate, and the second wall plate extends along the thickness direction of the main body plate and on one side away from the first wall plate, the main body plate, the first wall plate and the second wall plate enclose a accommodating space, the accommodating space is used to accommodate the explosion-proof valve bracket, and the main body plate, the first wall plate and the second wall plate are spaced apart from the explosion-proof valve bracket to form a first airflow channel.
  • the main plate, the first wall plate and the second wall plate can be used to enclose a storage space, and the explosion-proof valve bracket can be accommodated in the storage space, so that the explosion-proof valve bracket can be protected by being wrapped by the main plate, the first wall plate and the second wall plate; and the explosion-proof valve bracket can also be isolated from the electrode assembly by the main plate, the first wall plate and the second wall plate, so as to prevent the explosion-proof valve bracket from contacting with the electrode assembly and causing a short circuit, and also prevent impurities outside the explosion-proof valve bracket from entering the electrode assembly; at the same time, the present application also designs the first wall plate and the second wall plate to be curved and extended, so that the explosion-proof valve bracket can form a curved first airflow channel between the main plate, the first wall plate and the second wall plate after being accommodated in the storage space, which is conducive to sufficient gas flow; and because the first wall plate extends back to the second wall plate
  • the distance S1 between the first wall plate, the second wall plate and the explosion-proof valve bracket is 0.15mm to 2.65mm. Designing the above-mentioned spacing distance S1 within this range is conducive to the gas flowing to the accommodation space through the first airflow channel, and can prevent other foreign objects from passing through the airway.
  • the spacing distance S1 is smaller than the above-mentioned range, the spacing size is too small to form an airway for free flow of gas; when the spacing distance S1 is larger than the above-mentioned range, the spacing size is too large, and foreign objects in the end cover assembly are also easy to flow through the airway, such as broken pole ears or insulating films, which are easy to drift into the accommodation space along the airflow direction. The space makes the explosion-proof valve ineffective.
  • the first wall plate includes a first bent plate and a second bent plate, one end of the first bent plate is connected to the first surface, the other end of the first bent plate extends away from the second wall plate, one end of the second bent plate is connected to the end of the first bent plate away from the main plate, and the other end of the second bent plate extends toward the side away from the second wall plate.
  • the first wall plate can form a structure with at least two steps, so that the gas flow can be more uniform and smooth.
  • the first bent plate includes a first plate and a second plate connected at an angle, the first plate is connected to the first surface and extends along the thickness direction of the main plate, and the second plate extends toward the side facing away from the second wall plate.
  • the first plate and the second plate connected at a right angle it is beneficial to cooperate with the appearance structure of the explosion-proof valve bracket to form a first airflow channel; at the same time, the first plate extends along the thickness direction of the main plate, and the second plate extends toward the side facing away from the second wall plate, so that the first bent plate forms a step shape, which is more conducive to the gas flowing to the bottom of the explosion-proof valve bracket.
  • the second bent plate includes a third plate and a fourth plate connected at an angle
  • the third plate extends along the thickness direction of the main plate and is connected to the first bent plate at an angle
  • the fourth plate extends toward the side facing away from the second wall plate.
  • the bracket further includes a side plate, the side plate is connected to one end of the main plate in the width direction, the side plate extends in the thickness direction of the main plate, and the edge of one end of the main plate away from the side plate has a chamfer.
  • the side plate is connected to the first wall plate and the second wall plate, so that the side plate can support and reinforce the first wall plate and the second wall plate, and the side plate is also beneficial to protect other components of the end cover assembly from the side; the chamfer of one end of the main plate away from the side plate helps to avoid the edge of the main plate being too sharp, so as to avoid scratching the pole ear and causing the pole ear to rupture during assembly.
  • the bracket further includes a protrusion
  • the protrusion is connected to one end of the side plate away from the main plate
  • the protrusion protrudes from the side plate along the width direction of the main plate
  • the main plate is opposite to the protrusion
  • the orthographic projection of the protrusion on the main plate is a trapezoid.
  • the protrusion is provided on the bracket and connected to the side plate in order to utilize the protrusion to dock with other components in the end cover assembly, thereby reinforcing the stability between the end cover assemblies; at the same time, the orthographic projection of the protrusion on the main plate is a trapezoid, which is conducive to the smoothness of the protrusion docking and improves the reliability of the end cover assembly during assembly.
  • the end of the first wall panel away from the main panel is spaced apart from the protrusion in the thickness direction of the main panel.
  • the main body plate includes a breathable plate
  • the breathable plate is provided with air holes
  • the first wall plate and the second wall plate are connected at both ends of the breathable plate in the length direction, and together form the accommodation space
  • the breathable plate and the explosion-proof valve bracket are spaced apart
  • the explosion-proof valve bracket can provide buffer support for the breathable plate with relatively weak structural strength, and when the energy storage device falls or collides, the breathable plate is subjected to the upward impact force of the electrolyte, and the breathable plate first bends upward within the range of the spacing distance to absorb energy; when the impact force is too large, the breathable plate bends upward until it abuts against the explosion-proof valve bracket and stops, so as to avoid the breathable plate from being excessively bent and causing breakage, and reduce the risk of the fragments of the breathable plate scratching the pole ears after the breakage, thereby improving the safety performance of the energy storage device.
  • the main body plate By designing the main body plate to be a breathable plate for enclosing the accommodation space, and providing air holes on the breathable plate to connect to the accommodation space, the accommodation space can also be ventilated with the outside through the air holes, thereby facilitating the gas generated by the electrode assembly to pass through Flow out of the housing.
  • the spacing distance S2 between the main body plate and the explosion-proof valve bracket is 0.25mm to 3.45mm. Designing the above spacing distance S2 within this range is conducive to the gas flowing to the accommodation space through the first airflow channel, and can prevent other foreign objects from passing through the airway.
  • the spacing distance S2 is smaller than the above range, the spacing size is too small to form an airway for free flow of gas; when the spacing distance S2 is larger than the above range, the spacing size is too large, and foreign objects in the end cover assembly are also easy to flow through the airway, such as broken pole ears or insulating films, which are easy to drift into the accommodation space along the airflow direction, making the explosion-proof valve ineffective.
  • the bracket further includes at least one rib, which is located in the vent hole and divides the vent hole into a plurality of sub-vent holes.
  • the rib By providing the rib on the vent hole, it is not only helpful to divide the vent hole to form a uniform gas flow direction; at the same time, the rib is also helpful to support the air permeable plate with the vent hole, and can also be used to block fragments.
  • the main body plate further includes a support plate
  • the air permeable plate includes a first air permeable plate and a second air permeable plate
  • the support plate and the first air permeable plate are sequentially connected in the length direction of the main body plate
  • the first air permeable plate and the second air permeable plate are butted in the width direction of the main body plate
  • the second air permeable plate protrudes from the support plate along the width direction.
  • the second air permeable plate includes a third surface facing away from the first surface, the first wall plate has a fourth surface, the third surface is connected to the fourth surface, and a chamfer is formed between the third surface and the fourth surface.
  • the second wall plate is mirror-symmetrical to the first wall plate relative to the symmetry plane.
  • the first airflow channel can be a symmetrical structure, reducing the number of molds for bracket production, improving the parts matching rate of the bracket, and thus reducing production costs.
  • the main body plate is provided with a first notch
  • the explosion-proof valve bracket is provided with a second notch
  • the first notch and the second notch are directly opposite to each other in the thickness direction of the main body plate.
  • the bracket further includes a side plate and a buckle, the side plate is connected to one end of the main plate in the width direction, the side plate extends along the thickness direction of the main plate, the buckle is convexly arranged on the side plate and accommodated in the accommodating space, and the buckle is used to fix the explosion-proof valve bracket.
  • the buckle By providing the buckle on the bracket, it is convenient to fix the bracket and the explosion-proof valve bracket to each other through the buckle.
  • the end cap assembly further includes an insulating member, the insulating member is connected to the bracket, the insulating member includes a first side plate opposite to the explosion-proof valve bracket, and the first side plate is provided with a third notch.
  • the bracket includes a first bracket and a second bracket connected to both sides of the insulating member in the width direction, the first bracket and the second bracket are mirror-symmetrical, there is a spacing distance between the first bracket and the second bracket to form a second airflow channel, and the third notch is opposite to and communicates with the second airflow channel.
  • the bracket By designing the bracket to include a first bracket and a second bracket that are mirror-symmetrical, the insulating member and the explosion-proof valve bracket can be fixed by the first bracket and the second bracket; at the same time, the second airflow channel formed by the spacing distance between the first bracket and the second bracket can be used to communicate with the third notch, thereby increasing the number of channels for gas gathering, and reducing the number of molds for bracket production, improving the parts matching rate of the bracket, thereby reducing production costs.
  • a spacing distance S3 between the first bracket and the second bracket is 0.55 mm to 5.25 mm. Designing the above spacing distance S3 within this range is conducive to the gas flowing to the accommodation space through the second airflow channel, and can prevent other foreign objects from passing through the airway.
  • the spacing distance S3 is smaller than the above range, the spacing size is too small to form an airway for the free flow of gas; when the spacing distance S3 is larger than the above range, the spacing size is too large, and foreign objects in the end cover assembly are also easy to flow through the airway, such as broken pole ears or insulating films, which are easy to drift into the accommodation space along the airflow direction, making the explosion-proof valve ineffective.
  • the present application further provides an energy storage device, comprising an electrode assembly, a shell, and an end cap assembly described in any one of the various embodiments of the first aspect, wherein the electrode assembly is disposed in the shell, and the end cap assembly is electrically connected to the electrode assembly.
  • an electrical device comprising the energy storage device described in the second aspect, wherein the energy storage device supplies power to the electrical device.
  • FIG1 is a perspective view of an energy storage device according to an embodiment
  • FIG2 is an exploded view of an energy storage device according to an embodiment
  • FIG3 is an exploded view of an end cap assembly according to an embodiment
  • FIG4 is a front view of a bracket according to an embodiment
  • FIG5 is a front view of a main body plate, a first wall plate, a second wall plate and an explosion-proof valve bracket according to an embodiment
  • FIG6 is a front view of a first wall panel according to an embodiment
  • FIG7 is a top view of a bracket according to an embodiment
  • FIG8 is a schematic structural diagram of a breathable plate according to an embodiment
  • FIG9 is a schematic structural diagram of a bracket, an insulating member and an explosion-proof valve bracket according to an embodiment
  • FIG10 is a schematic structural diagram of an explosion-proof valve support according to an embodiment
  • FIG. 11 is a schematic structural diagram of a bracket and an insulating member according to an embodiment.
  • 100-energy storage device 10-end cover assembly, 20-electrode assembly, 30-housing;
  • 11-bracket 111-main body plate, 1111-first surface, 1112-second surface, 1113-air permeable plate, 1113A-first air permeable plate, 1113B-second air permeable plate, 1114-ventilation hole, 1114A-sub-air hole, 1115-rib, 1116-support plate, 1116A-left support plate, 1116B-right support plate, 1117-third surface, 112-first wall plate, 1121-first bending plate, 1121A-second A plate, 1121B-a second plate, 1122-a second bending plate, 1122A-a third plate, 1122B-a fourth plate, 1123-a fourth surface, 113-a second wall plate, 114, 114A, 114B-an accommodating space, 115-a first air flow channel, 116-a side plate, 1161-a connecting surface, 117-a protrusion, 118-a first notch, 119-a buckle, 11A-a first bracket, 11B-a second bracket, 11S-a second
  • 12-explosion-proof valve bracket 121-second notch, 122-baffle, 123-first connecting plate, 124-second connecting plate, 125-fixing hole, 13-insulating member, 13A-positive electrode cover plate, 13B-negative electrode cover plate, 131-base plate, 132-first side plate, 133-liquid injection hole, 134-third notch, 14-main cover plate;
  • ⁇ is the first angle
  • ⁇ is the second angle
  • ⁇ is the third angle
  • ⁇ is the fourth angle
  • ⁇ is the fifth angle
  • a component when a component is said to be “fixed to” another component, it can be directly on the other component or there can be a central component.
  • a component When a component is said to be “connected to” another component, it can be directly connected to the other component or there can be a central component at the same time.
  • the embodiment of the present application provides an energy storage device 100, please refer to Figures 1 and 2, including an electrode assembly 20, a shell 30 and an end cap assembly 10, the electrode assembly 20 is disposed in the shell 30, and the end cap assembly 10 is electrically connected to the electrode assembly 20.
  • the end cap assembly 10 is also covered at the opening of the shell 30 and closes the shell 30.
  • the end cover assembly 10 includes a main cover plate 14 and an explosion-proof valve bracket 12, and an explosion-proof opening (not shown in the figure) is opened in the middle of the main cover plate 14, and the explosion-proof opening is used to install an explosion-proof disk (not shown in the figure), and the explosion-proof disk is fixed to the main cover plate 14 through the explosion-proof valve bracket 12.
  • the embodiment of the present application provides a bracket 11 for an energy storage device 100 . Please refer to FIG. 4 and FIG. 5 .
  • the bracket 11 is a part of the end cover assembly 10 .
  • the bracket 11 includes a main body plate 111 , a first wall plate 112 , and a second wall plate 113 .
  • the bracket 11 is made of insulating material, specifically plastic material, such as PP (polypropylene) material.
  • the main plate 111 includes a first surface 1111 and a second surface 1112 opposite to each other, and the second surface 1112 is opposite to the electrode assembly 20 of the energy storage device 100.
  • the main plate 111 is plate-shaped, and the plate surface is generally convex in shape.
  • the main plate 111 has a length, a width and a thickness. When describing each structure later, the extension direction of the length of the main plate 111 is the length direction, the extension direction of the width is the width direction, and the extension direction of the thickness is the thickness direction.
  • the first surface 1111 and the second surface 1112 are two opposite surfaces in the thickness direction.
  • the main cover plate 14 faces the first surface 1111, and the main cover plate 14 can be parallel to the main plate 111.
  • the above-mentioned explosion-proof valve bracket 12 is located between the main cover plates 14 of the main plate 111.
  • the first wall panel 112 and the second wall panel 113 are arranged on the first surface 1111 and are arranged opposite to each other in the length direction of the main body panel 111.
  • the main body panel 111 is divided into a left part, a middle part and a right part in the length direction, and the first wall panel 112 and the second wall panel 113 are connected to the middle part.
  • the first wall panel 112 and the second wall panel 113 are both plate-shaped.
  • the first wall panel 112, the second wall panel 113 and the main body panel 111 can be an integrated structure, for example, integrally formed by injection molding.
  • the first wall plate 112 is bent and extended along the thickness direction of the main body plate 111 and on one side facing away from the second wall plate 113.
  • the second wall plate 113 is bent and extended along the thickness direction of the main body plate 111 and on one side facing away from the first wall plate 112.
  • the main body plate 111, the first wall plate 112 and the second wall plate 113 form a receiving space 114.
  • the receiving space 114 is used to accommodate the explosion-proof valve bracket 12.
  • the main body plate 111, the first wall plate 112 and the second wall plate 113 are spaced apart from the explosion-proof valve bracket 12 to form a first airflow channel 115.
  • the shape of the curved extension path of the first wall plate 112 may be wavy or toothed.
  • the shape of the curved extension path of the second wall plate 113 may be wavy or toothed.
  • the shape of the curved extension path of the first wall plate 112 and the shape of the curved extension path of the second wall plate 113 may be the same or different.
  • the size of the explosion-proof valve bracket 12 should be smaller than the volume of the accommodating space 114, and the shape of the explosion-proof valve bracket 12 can be similar to the accommodating shape of the accommodating space 114, so that the main body plate 111 and the first wall plate 112 and the second The wall plates 113 are spaced apart from the explosion-proof valve bracket 12 to form a first airflow channel 115. Furthermore, when the end cover assembly 10 is sectioned along the thickness direction of the main body plate 111, the shape of the first airflow channel 115 can be curved.
  • the accommodating space 114 can be divided by the explosion-proof valve bracket 12 to form the first airflow channel 115 , so the first airflow channel 115 should always be part of the accommodating space 114 .
  • the extension shape of the first airflow channel 115 may be a "J" shape. It may also be a "U" shape. It is understandable that since the first airflow channel 115 is formed by the main body plate 111, the first wall plate 112, the second wall plate 113 and the explosion-proof valve bracket 12, the extension shape of the first airflow channel 115 should be similar to the cross-sectional shape formed by connecting the main body plate 111, the first wall plate 112 and the second wall plate 113.
  • the main plate 111, the first wall plate 112 and the second wall plate 113 can be used to enclose a receiving space 114, and the explosion-proof valve bracket 12 can be accommodated in the receiving space 114, so that the explosion-proof valve bracket 12 can be protected by being wrapped by the main plate 111, the first wall plate 112 and the second wall plate 113; and the explosion-proof valve bracket 12 can also be isolated from the electrode assembly 20 by the main plate 111, the first wall plate 112 and the second wall plate 113, so as to prevent the explosion-proof valve bracket 12 from contacting with the electrode assembly 20 and causing a short circuit, and also prevent the explosion-proof valve bracket 12 from being short-circuited.
  • the present application also designs the first wall plate 112 and the second wall plate 113 to be bent and extended, so that the explosion-proof valve bracket 12 can form a curved first airflow channel 115 with the main plate 111, the first wall plate 112 and the second wall plate 113 after being accommodated in the accommodating space 114, which is conducive to sufficient gas flow; and because the first wall plate 112 extends back to the second wall plate 113, and the second wall plate 113 extends back to the first wall plate 112, the first airflow channel 115 at the first wall plate 112 and the second wall plate 113 is sloped, which is conducive to the gas gathering under the explosion-proof bracket.
  • the spacing distance S1 between the first wall plate 112, the second wall plate 113 and the explosion-proof valve bracket 12 is 0.15 mm to 2.65 mm.
  • the specific size of the spacing distance S1 can be 0.95, 1.05 mm, 1.1 mm, 1.25 mm, and 1.3 mm. Designing the above spacing distance S1 within this range is conducive to the gas flowing through the first airflow channel 115 to the accommodation space, and can prevent other foreign objects from passing through the airway.
  • the spacing size is too small to form an airway for free flow of gas; when the spacing distance S1 is greater than the above range, the spacing size is too large, and foreign objects in the end cover assembly 10 are also easy to flow through the airway, such as broken pole ears or insulating films, which are easy to drift into the accommodation space along the airflow direction, making the explosion-proof valve ineffective.
  • the first wall panel 112 includes a first bending plate 1121 and a second bending plate 1122, one end of the first bending plate 1121 is connected to the first surface 1111, and the other end of the first bending plate 1121 extends toward the side of the second wall panel 113, one end of the second bending plate 1122 is connected to one end of the first bending plate 1121 away from the main plate 111, and the other end of the second bending plate 1122 extends toward the side away from the second wall panel 113.
  • first bent plate 1121 and the second bent plate 1122 are cross-sectioned along the thickness direction of the main plate 111, and the cross-sectional shape of the first bent plate 1121 can be a smooth curve; the cross-sectional shape of the second bent plate 1122 can also be a smooth curve.
  • the smooth curves of the first bent plate 1121 and the second bent plate 1122 are beneficial to the smooth flow of gas, and can avoid the phenomenon of turbulence of gas in the first airflow channel 115.
  • the smooth curve can also prevent the first wall plate 112 from being scratched during use.
  • the cross-sectional shape of the first bent plate 1121 may also be a sharp angle type; the cross-sectional shape of the second bent plate 1122 may also be a sharp angle type.
  • the bracket 11 can be formed by reverse molding, so the sharp angle type of the first bent plate 1121 and the second bent plate 1122 is helpful for mold making and can reduce the steps of mold edge grinding and chamfering.
  • the cross-sectional shape of the first bending plate 1121 may be the same as or different from the cross-sectional shape of the second bending plate 1122.
  • the cross-sectional shape of the first bending plate 1121 may be a sharp angle type
  • the cross-sectional shape of the second bending plate 1122 may be a smooth curve type, which can be specifically designed according to requirements.
  • the second wall plate 113 includes a third bent plate and a fourth bent plate (not shown in the figure), one end of the third bent plate
  • the third bent plate is connected to the first surface 1111, and the other end of the third bent plate extends away from the first wall plate 112.
  • One end of the fourth bent plate is connected to the end of the third bent plate away from the main plate 111, and the other end of the fourth bent plate extends toward the side away from the first wall plate 112.
  • the cross-sectional shape of the third bent plate and the fourth bent plate can be the smooth curved shape or the sharp angle shape mentioned above.
  • the first wall panel 112 can include a first bent plate 1121 and a second bent plate 1122, with one end of the first bent plate 1121 extending away from the second wall panel 113 and one end of the second bent plate 1122 extending toward the side away from the second wall panel 113, the first wall panel 112 can form a structure with at least two steps, thereby making the gas flow more uniform and smoother.
  • the first bent plate 1121 includes a first plate 1121A and a second plate 1121B connected at an angle, the first plate 1121A is connected to the first surface 1111 and extends along the thickness direction of the main plate 111, and the second plate 1121B extends toward the side facing away from the second wall plate 113.
  • the first plate 1121A is connected to the main plate 111 at an angle.
  • the connection angle between the first plate 1121A and the main plate 111 can be a first angle ⁇ of 90°.
  • the first angle ⁇ can also be 80°, 85°, 95° or 100°. It can be understood that the first plate 1121A is connected to the first surface 1111 and extends along the thickness direction of the main plate 111, and is not limited to the angle between the two.
  • the angle should not be too large or too small, because if the connection angle between the first plate 1121A and the main plate 111 is too large or too small, the size of the first wall plate 112 in the thickness direction of the main plate 111 will be insufficient, resulting in poor overall support of the first wall plate 112 to the bracket 11, and insufficient stability of the bracket 11.
  • the second plate 1121B is connected to the first plate 1121A at an angle.
  • the connection angle between the second plate 1121B and the first plate 1121A can be a second angle ⁇ of 100°.
  • the second angle ⁇ can also be 90°, 95°, 105° or 110°.
  • the second plate 1121B is connected to the side of the first plate 1121A facing away from the second wall plate 113, and extends away from the side of the second wall plate 113, so it is not limited to the angle between the two.
  • the second angle ⁇ greater than 90° is conducive to guiding the gas in the first airflow channel 115, so that the airflow can have a tendency to flow toward the main plate 111.
  • connection angle between the second plate 1121B and the first plate 1121A should not be too large or too small; when the connection angle is too small, the second plate 1121B is too close to the side of the first plate 1121A facing away from the second wall plate 113, and a curved extended first air flow channel 115 cannot be formed; when the connection angle is too large, the second plate 1121B tends to be parallel to the first plate 1121A, and a curved extended first air flow channel 115 cannot be formed.
  • the two opposite sides of the first plate 1121A may be parallel planes, or one of the sides may be a curved surface protruding outward, or both the opposite sides may be curved surfaces protruding outward.
  • the two opposite sides of the second plate 1121B may be parallel planes, or one of the sides may be a curved surface protruding outward, or both the opposite sides may be curved surfaces protruding outward.
  • first plate 1121A and the second plate 1121B connected at a right angle, it is beneficial to cooperate with the appearance structure of the explosion-proof valve bracket 12, so as to form a first air flow channel 115; at the same time, the first plate 1121A extends along the thickness direction of the main plate 111, and the second plate 1121B extends toward the side facing away from the second wall plate 113, so that the first bent plate 1121 forms a step shape, which is more conducive to the gas flowing to the bottom of the explosion-proof valve bracket 12.
  • the second bent plate 1122 includes a third plate 1122A and a fourth plate 1122B connected at an angle, the third plate 1122A extends along the thickness direction of the main plate 111 and is connected to the first bent plate 1121 at an angle, and the fourth plate 1122B extends toward the side facing away from the second wall plate 113.
  • the third plate 1122A is connected to the second plate 1121B at an angle.
  • the connection angle between the third plate 1122A and the second plate 1121B can be a third angle ⁇ of 90°.
  • the third angle ⁇ can also be 80°, 85°, 95° or 100°. It can be understood that the third plate 1122A is connected to the side of the second plate 1121B facing away from the main plate 111 and extends along the thickness direction of the main plate 111, and is not limited to the angle between the two.
  • the angle should not be too large or too small, because if the connection angle between the third plate 1122A and the second plate 1121B is too large or too small, the curved extended first airflow channel 115 cannot be formed, and it is also easy to cause the first wall plate 112 to be insufficient in size in the thickness direction, and the first wall plate 112 has an impact on the overall shape of the bracket 11. Poor body support.
  • the fourth plate 1122B is connected to the third plate 1122A at an angle.
  • the connection angle between the fourth plate 1122B and the third plate 1122A can be a fourth angle ⁇ of 100°.
  • the fourth angle ⁇ can also be 90°, 95°, 105° or 110°.
  • the fourth plate 1122B is connected to the side of the third plate 1122A facing away from the second wall plate 113, and extends away from the side of the second wall plate 113, so it is not limited to the angle between the two.
  • the fourth angle ⁇ greater than 90° is conducive to guiding the gas at the mouth of the first airflow channel 115, so that the airflow can have a tendency to flow to the main plate 111.
  • connection angle between the fourth plate 1122B and the third plate 1122A should not be too large or too small, because when the connection angle between the fourth plate 1122B and the third plate 1122A is too large or too small, the curved extended first airflow channel 115 cannot be formed.
  • the two opposite sides of the third plate 1122A may be parallel planes, or one of the sides may be a curved surface protruding outward, or both the opposite sides may be curved surfaces protruding outward.
  • the two opposite sides of the fourth plate 1122B may be parallel planes, or one of the sides may be a curved surface protruding outward, or both the opposite sides may be curved surfaces protruding outward.
  • the fourth plate 1122B and the third plate 1122A can form a step with a slope, so that the air around the fourth plate 1122B can more easily flow downward to the first bending plate 1121 through this slope step, thereby improving the flow direction of the gas and improving the convergence effect.
  • the bracket 11 also includes a side panel 116, the side panel 116 is connected to one end of the main panel 111 in the width direction, the side panel 116 extends along the thickness direction of the main panel 111, and the edge of one end of the main panel 111 away from the side panel 116 has a chamfer.
  • the side panel 116 and the main panel 111 may be connected at an angle, and optionally, the connection angle between the side panel 116 and the main panel 111 may be 90°.
  • the side panel 116 extends along the thickness direction of the main panel 111, and the first wall panel 112 and the second wall panel 113 are both connected to the side panel 116 to jointly enclose the above-mentioned accommodation space 114.
  • the main plate 111 includes a first edge, a second edge, and a third edge (not shown) that are connected in sequence.
  • the side plate 116 is connected to the third edge of the main plate 111, and the third edge is opposite to the first edge. Both the second edge and the first edge can be formed with chamfers. In this way, when the bracket 11 is installed on the housing 30, scratching the tab during assembly can be avoided to cause the tab to rupture.
  • the side panel 116 is connected to the first wall panel 112 and the second wall panel 113, so that the side panel 116 can support and reinforce the first wall panel 112 and the second wall panel 113, and at the same time, the side panel 116 is also beneficial for protecting other components of the end cover assembly 10 from the side; the edge of the end of the main panel 111 away from the side panel 116 has a chamfer, which helps to prevent the edge of the main panel 111 from being too sharp, so as to avoid scratching the pole ear and causing the pole ear to rupture during assembly.
  • the bracket 11 also includes a protrusion 117, the protrusion 117 is connected to one end of the side panel 116 away from the main panel 111, the protrusion 117 protrudes from the side panel 116 along the width direction of the main panel 111, and the main panel 111 is opposite to the protrusion 117, and the positive projection of the protrusion 117 on the main panel 111 is a trapezoid.
  • the side plate 116 may include a connection surface 1161, and the first wall plate 112 and the second wall plate 113 are both connected to the connection surface 1161.
  • the protrusion 117 is connected to the connection surface 1161 and is located at an end away from the main plate 111. The protrusion 117 is used to connect with the insulating member 13.
  • the protrusion 117 protrudes from the connecting surface 1161 along the width direction of the main plate 111, and the main plate 111 is opposite to the protrusion 117. It can be understood that the protrusion 117 can be plate-shaped, and the plate surface of the protrusion 117 can be parallel to the plate surface of the main plate 111.
  • the orthographic projection of the protrusion 117 on the main plate 111 is a trapezoid, specifically a regular trapezoid.
  • the longer bottom edge of the protrusion 117 can be connected to the side plate 116, so the protrusion 117 is a shrinking shape in the direction away from the side plate 116.
  • the orthographic projection of the protrusion 117 on the main plate 111 may also be a hexagon.
  • one end of the protrusion 117 away from the side plate 116 may have a chamfer.
  • the protrusion 117 on the bracket 11 By providing a protrusion 117 on the bracket 11 and connecting the protrusion 117 to the side plate 116, it is possible to utilize the protrusion 117 to dock with other components in the end cover assembly 10, thereby reinforcing the stability of the end cover assembly 10; at the same time, the positive projection of the protrusion 117 on the main plate 111 is a trapezoid, which is beneficial to the smoothness of the protrusion 117 when docking, thereby improving the reliability of the end cover assembly 10 during assembly.
  • one end of the first wall plate 112 away from the main plate 111 is spaced apart from the protrusion 117 in the thickness direction of the main plate 111.
  • the height of the first wall plate 112 in the thickness direction of the main plate 111 may not exceed the height of the side plate 116. It is understandable that when the first wall plate 112 and the protrusion 117 are observed in the length direction of the main plate 111, one end of the first wall plate 112 and the protrusion 117 may be misaligned, so the protrusion 117 will not block the first wall plate 112 in the length direction.
  • the end of the first wall panel 112 away from the main panel 111 has a spacing distance from the protrusion 117 in the thickness direction of the main panel 111, the end of the first wall panel 112 and the protrusion 117 are staggered, so that the gas will not be blocked by the protrusion 117 on the path flowing along the length direction of the main panel 111 to the first wall panel 112, and the gas can form a staggered airflow channel, which can avoid the collision of the gas with the protrusion 117 to form turbulence, and is also conducive to the convergence of the gas.
  • the main plate 111 includes a breathable plate 1113, the breathable plate 1113 is provided with a vent hole 1114, the first wall plate 112 and the second wall plate 113 are connected at both ends of the breathable plate 1113 in the length direction, and together form a accommodating space 114, and the breathable plate 1113 is spaced apart from the explosion-proof valve bracket 12.
  • the air permeable plate 1113 is located in the middle of the main body plate 111, and the air permeable plate 1113 is provided with an air vent 1114 that penetrates the thickness direction of the main body plate 111, so that the accommodating space 114 can be connected to the external space.
  • the shape of the air vent 1114 can be a quadrilateral. It can also be a circle, an ellipse or other polygons, without limitation.
  • the air permeable plate 1113 includes two side plates opposite to each other in the length direction, namely a left side plate and a right side plate.
  • the first wall plate 112 can be connected to the left side plate at an angle
  • the second wall plate 113 can be connected to the right side plate at an angle.
  • the specific angles can refer to the above embodiments.
  • the air permeable plate 1113 and the explosion-proof valve bracket 12 are spaced apart from each other, and the air vent 1114 can be directly opposite to the explosion-proof valve bracket 12 .
  • the explosion-proof valve bracket 12 can provide buffer support for the air permeable plate 1113 with relatively weak structural strength.
  • the air permeable plate 1113 is subjected to the upward impact force of the electrolyte, and the air permeable plate 1113 first bends upward within the interval distance to absorb energy; when the impact force is too large, the air permeable plate 1113 bends upward until it abuts against the explosion-proof valve bracket 12 to stop, so as to avoid excessive bending of the air permeable plate 1113 and cause breakage, and reduce the fragments of the air permeable plate 1113 after the breakage to scratch the pole ear, so that the safety performance of the energy storage device 100 can be improved.
  • the accommodation space 114 can also be ventilated with the outside through the vent hole 1114, so as to facilitate the gas generated by the electrode assembly 20 to pass through and flow out of the shell 30.
  • the spacing distance S2 between the main plate 111 and the explosion-proof valve bracket 12 is 0.25mm to 3.45mm.
  • the specific size of the spacing distance S2 can be 1.3, 1.4mm, 1.5mm, 1.6mm, 1.7mm. Designing the above spacing distance S2 within this range is conducive to the gas flowing to the accommodation space through the first airflow channel, and can prevent other foreign matter from passing through the airway.
  • the spacing size is too small to form an airway for free flow of gas; when the spacing distance S2 is greater than the above range, the spacing size is too large, and foreign matter in the end cover assembly is also easy to flow through the airway, such as broken pole ears or insulating films, which are easy to drift into the accommodation space along the airflow direction, making the explosion-proof valve ineffective.
  • the bracket 11 further includes at least one rib 1115 , and the rib 1115 is located in the vent hole 1114 and divides the vent hole 1114 into a plurality of sub-vent holes 1114A.
  • the rib 1115 extends in the width direction of the air permeable plate 1113, and its two ends are respectively connected to the upper plate and the lower plate enclosing the vent hole 1114.
  • the upper plate and the lower plate are both connected to the left plate and the right plate mentioned above. 1115 can divide the vent hole 1114 into a plurality of sub-vent holes 1114A.
  • the number of ribs 1115 can be three, and the three ribs 1115 are arranged in sequence along the length direction.
  • the spacing between two adjacent ribs 1115 can be the same.
  • the distances between the two outermost ribs 1115 and the left and right panels can also be the same. It can be understood that the sizes of the multiple sub-air holes 1114A can be the same.
  • ribs 1115 By providing ribs 1115 on the vent holes 1114, it is not only helpful to divide the vent holes 1114 to form a uniform gas flow direction; at the same time, the ribs 1115 are also helpful to support the air permeable plate 1113 with the vent holes 1114, and can also be used to block fragments.
  • the main plate 111 also includes a support plate 1116
  • the air permeable plate 1113 includes a first air permeable plate 1113A and a second air permeable plate 1113B
  • the support plate 1116 and the first air permeable plate 1113A are connected in sequence in the length direction of the main plate 111
  • the first air permeable plate 1113A and the second air permeable plate 1113B are connected in the width direction of the main plate 111
  • the second air permeable plate 1113B protrudes from the support plate 1116 along the width direction.
  • the main body plate 111 further includes a left support plate 1116A and a right support plate 1116B, wherein the left support plate 1116A is connected to the left side plate in the above embodiment, and the right support plate 1116B is connected to the right side plate in the above embodiment.
  • the ventilation holes in the above embodiment can be located on the left support plate 1116A and the right support plate 1116B, respectively.
  • the air permeable plate 1113 can be divided into a first air permeable plate 1113A and a second air permeable plate 1113B in the width direction, and the first air permeable plate 1113A and the second air permeable plate 1113B are connected to form the vent 1114.
  • the first air permeable plate 1113A may include the upper plate in the above embodiment, and part of the left plate and the right plate.
  • the second air permeable plate 1113B may include the lower plate in the above embodiment, and part of the left plate and the right plate.
  • the left support plate 1116A, the first air permeable plate 1113A and the right support plate 1116B are sequentially connected in the length direction of the main body plate 111.
  • the second air permeable plate 1113B protrudes from the support plate 1116 along the width direction.
  • the air permeable plate 1113 can be an integrated structure, and the first air permeable plate 1113A and the second air permeable plate 1113B are mainly for the convenience of description.
  • the air permeable plate 1113B By designing the second air permeable plate 1113B to protrude from the support plate 1116 in the width direction, the air permeable plate 1113 has a larger size, so that larger ventilation holes 1114 can be opened, which is beneficial to increase the flow volume of gas.
  • the second air permeable plate 1113B includes a third surface 1117 facing away from the first surface 1111 , the first wall plate 112 has a fourth surface 1123 , the third surface 1117 is connected to the fourth surface 1123 , and a chamfer is formed between the third surface 1117 and the fourth surface 1123 .
  • the first air permeable plate 1113A may include a portion of the second surface 1112
  • the third air permeable plate 1113 may include a portion of the second surface 1112 and a third surface 1117
  • the third surface 1117 and the second surface 1112 may be two non-parallel surfaces.
  • a fifth angle ⁇ may be formed between the second surface 1112 and the third surface 1117.
  • the third surface 1117 is tilted downward relative to the second surface 1112. This is used to guide the gas.
  • the fourth surface 1123 may be the surface of the first plate 1121A in the above embodiment that faces away from the second wall plate 113. Therefore, the fourth surface 1123 is connected to the third surface 1117, and a chamfer is formed between the third surface 1117 and the fourth surface 1123.
  • the second breathable plate 1113B including the third surface 1117 facing away from the first surface 1111 and the fourth surface 1123 of the first wall panel 112, it is beneficial to guide the gas below the breathable plate 1113, so that the gas outside the accommodating space 114 can form an internal and external circulation circulation through the first wall panel 112 and the second wall panel 113.
  • the second wall plate 113 is mirror-symmetrical with respect to the symmetry plane of the first wall plate 112.
  • the bracket 11 may be a mirror-symmetrical structure, and the symmetry plane of the bracket 11 may be located in the middle of the bracket 11.
  • a midpoint is taken in the length direction of the main plate 111, and a cross section perpendicular to the main plate 111 is made at the midpoint position, and the left and right ends of the bracket 11 may be mirror-symmetrical with respect to the cross section.
  • the generated cross section may be a symmetry plane.
  • first wall plate 112 and the second wall plate 113 are located at the left and right ends respectively, so the second wall plate 113 is mirror-symmetrical with respect to the first wall plate 112.
  • the number of the protrusions 117 in the above embodiment can be two and mirror-symmetrical.
  • the left support plate 1116A and the right support plate 1116B in the embodiment may also be mirror images of each other.
  • the first airflow channel 115 can be a symmetrical structure, which reduces the number of molds for producing the bracket 11, improves the parts matching rate of the bracket 11, and thus reduces production costs.
  • a first notch 118 is formed on the main plate 111
  • a second notch 121 is formed on the explosion-proof valve bracket 12 .
  • the first notch 118 and the second notch 121 are opposite to each other in the thickness direction of the main plate 111 .
  • the left side panel includes a first side wall (not shown in the figure), and the right side panel includes a second side wall, and the first side wall and the second side wall are opposite to each other and jointly enclose the vent hole 1114.
  • the first side wall and the second side wall are respectively at least partially concave along the length direction of the air permeable plate 1113 to form a first notch 118. Therefore, the number of the first notches 118 is two, and both are connected to the vent hole 1114.
  • the explosion-proof valve support 12 may include a baffle 122, a first connecting plate 123, and a second connecting plate 124.
  • the baffle 122 is opposite to the main body plate 111 and the main cover plate 14.
  • the first connecting plate 123 and the second connecting plate 124 are respectively connected to both ends of the baffle 122 in the length direction.
  • the first connecting plate 123 and the second connecting plate 124 are also used to connect to the main cover plate 14.
  • the explosion-proof valve bracket 12 may also be a mirror-symmetrical structure, and the symmetrical surface may be the same as the symmetrical surface of the bracket 11 in the above embodiment.
  • the cross-sectional shape of the explosion-proof valve bracket 12 along the thickness direction of the main plate 111 may be a "J" shape. It can be understood that the first connecting plate 123 and the second connecting plate 124 mentioned above may both be bent plates.
  • the second notch 121 passes through two opposite sides of the baffle 122 and is directly opposite to the first notch 118 .
  • first notch 118 on the main plate 111 and a second notch 121 on the explosion-proof valve bracket 12 By opening a first notch 118 on the main plate 111 and a second notch 121 on the explosion-proof valve bracket 12, and the first notch 118 and the second notch 121 are directly opposite to each other, it is beneficial to form another vertical gas flow channel in the accommodating space 114, increase the number of gas gathering channels, and ultimately improve the air circulation density near the explosion-proof valve bracket 12.
  • the bracket 11 also includes a side panel 116 and a buckle 119, the side panel 116 is connected to one end of the main panel 111 in the width direction, the side panel 116 extends along the thickness direction of the main panel 111, the buckle 119 is protruded from the side panel 116 and accommodated in the accommodating space 114, and the buckle 119 is used to fix the explosion-proof valve bracket 12.
  • the buckle 119 protrudes from the connecting surface 1161 of the side plate 116 and is located in the accommodating space 114.
  • the buckle 119 can be a "1" type buckle, which is used to fix the explosion-proof valve bracket 12.
  • the bracket 11 is mirror-symmetrical, the number of the buckles 119 can be two, and they are mirror-symmetrical.
  • the explosion-proof valve bracket 12 further has two fixing holes 125, one on the first connecting plate 123 and the other on the second connecting plate 124. Since the explosion-proof valve bracket 12 is mirror-symmetrical, taking the first connecting plate 123 as an example, the fixing holes 125 penetrate the two opposite sides of the connecting plate, and at least a part of the buckle 119 extends into the fixing holes 125 to connect and fix the first connecting plate 123.
  • the position of the buckle 119 may be opposite to the first notch 118 and the second notch 121 in the above embodiment, so as to facilitate observing through the first notch 118 whether the buckle 119 is engaged with the first connecting plate 123 and the second connecting plate 124 .
  • the end cover assembly 10 further includes an insulating member 13 , which is connected to the bracket 11 .
  • the insulating member 13 includes a first side plate 132 opposite to the explosion-proof valve bracket 12 , and the first side plate 132 is provided with a third notch 134 .
  • the insulating component 13 includes a positive electrode cover plate 13A and a negative electrode cover plate 13B. Both the positive electrode cover plate 13A and the negative electrode cover plate 13B are connected to the bracket 11 and are arranged opposite to each other in the length direction of the main plate 111 .
  • the positive electrode cover plate 13A and the negative electrode cover plate 13B are both made of insulating materials, specifically plastic materials, such as PP (polypropylene).
  • the positive electrode cover plate 13A and the negative electrode cover plate 13B are both generally plate-shaped, and the plate surface is generally rectangular.
  • the length, width and thickness directions of the positive electrode cover plate 13A and the negative electrode cover plate 13B are consistent with the length, width and thickness directions of the main body plate 111.
  • the positive electrode cover plate 13A includes a substrate 131 and a first side plate 132.
  • the substrate 131 may be in the shape of a plate, and the plate surface may be rectangular.
  • the length direction, width direction and thickness direction of the substrate 131 are the length direction, width direction and thickness direction of the aforementioned positive electrode cover plate 13A.
  • the first side plate 132 may be in the shape of a plate, a strip, a block, etc., without limitation.
  • the first side plate 132 and the substrate 131 may be an integral structure, for example, integrally formed by an injection molding process.
  • the first side plate 132 is arranged at the end of the substrate 131 in the length direction close to the negative electrode cover plate 13B.
  • a liquid injection hole 133 is opened on the substrate 131 and runs through the thickness direction, and the liquid injection hole 133 is close to the first side plate 132 so that the first side plate 132 surrounds the liquid injection hole 133, so the liquid injection hole 133 has at least one straight side.
  • the first side plate 132 is close to the end of the first wall plate 112 away from the main plate 111, and the first side plate 132 is formed with a concave third notch 134 on a side connected to the base plate 131.
  • the third notch 134 is connected to the first airflow channel 115.
  • the bracket 11 includes a first bracket 11A and a second bracket 11B connected on both sides of the insulating member 13 in the width direction, the first bracket 11A and the second bracket 11B are mirror-symmetrical, and there is a spacing distance between the first bracket 11A and the second bracket 11B to form a second air flow channel 11S, and the third notch 134 is opposite to and connected to the second air flow channel 11S.
  • the number of the brackets 11 in the end cap assembly 10 can be two, namely a first bracket 11A and a second bracket 11B.
  • the first bracket 11A and the second bracket 11B are mirror-symmetrical. Therefore, the first bracket 11A and the second bracket 11B both have all the features of the bracket 11 described in the above embodiment.
  • the first bracket 11A encloses a receiving space 114A
  • the second bracket 11B encloses a receiving space 114B
  • the receiving space 114A and the receiving space 114B together constitute a main receiving space 114
  • the explosion-proof valve bracket 12 mentioned above is received in the main receiving space 114 .
  • first bracket 11A and the second bracket 11B are spaced apart to form a second airflow channel 11S.
  • the extension path of the second airflow channel 11S may be the same as and opposite to the extension path of the second airflow channel 11S. Therefore, the second airflow channel 11S is used to communicate with the main accommodation space 114.
  • the insulating member 13 is located between the first bracket 11A and the second bracket 11B, and respectively connects the first bracket 11A and the second bracket 11B.
  • the third notch 134 is opposite to and communicates with the second air flow channel 11S.
  • the bracket 11 By designing the bracket 11 to include a first bracket 11A and a second bracket 11B that are mirror-symmetrical, the insulating component 13 and the explosion-proof valve bracket 12 can be fixed by the first bracket 11A and the second bracket 11B; at the same time, the second air flow channel 11S formed by the spacing distance between the first bracket 11A and the second bracket 11B can be used to communicate with the third notch 134, thereby increasing the number of channels for gas gathering and reducing the number of molds for producing the bracket 11, thereby improving the parts matching rate of the bracket and reducing production costs.
  • the spacing distance S3 between the first bracket 11A and the second bracket 11B is 0.55mm to 5.25mm.
  • the specific size of the spacing distance S3 can be 1.6, 1.7mm, 1.85mm, 1.95mm, 2.0mm. Designing the above spacing distance S3 within this range is conducive to the gas flowing to the accommodation space through the second airflow channel, and can prevent other foreign objects from passing through the airway.
  • the spacing size is too small to form an airway for free flow of gas; when the spacing distance S3 is greater than the above range, the spacing size is too large, and foreign objects in the end cover assembly are also easy to flow through the airway, such as broken pole ears or insulating films, which are easy to drift into the accommodation space along the airflow direction, making the explosion-proof valve ineffective.
  • the embodiment of the present application also provides an electrical device, including the energy storage device 100 in the embodiment of the present application, and the energy storage device 100 is used to supply power to the electrical device.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

一种端盖组件（10）、储能装置（100）和用电设备，支架（11）包括主体板（111）、第一壁板（112）和第二壁板（113）；主体板（111）包括相背的第一面（1111）和第二面（1112），第二面（1112）与储能装置（100）的电极组件（20）相对；第一壁板（112）和第二壁（113）板设置于第一面（1111），并在主体板（111）的长度方向上相对设置；第一壁板（112）沿主体板（111）的厚度方向且背向第二壁板（113）的一侧弯曲延伸，第二壁板（113）沿主体板（111）的厚度方向且背向第一壁板（112）的一侧弯曲延伸，主体板（111）、第一壁板（112）和第二壁板（113）围成容纳空间（114），容纳空间（114）用于容置防爆阀支架（12），主体板（111）和第一壁板（112）以及第二壁板（113）均与防爆阀支架（12）之间具有间隔距离以形成第一气流通道（115）；上述结构有利于充分的气体流动，以使得气体汇聚到防爆支架的下方。

Description

端盖组件、储能装置和用电设备 技术领域
本申请涉及储能技术领域，具体涉及一种端盖组件、储能装置和用电设备。
背景技术
储能装置用于将能量储存起来，并在需要时释放能量。目前的储能装置主要为可充电的二次电池，目前常见的二次电池主要包括壳体、电极组件和端盖组件，电极组件收容在内，端盖组件封闭壳体，电极组件的极耳与盖板组件上的极柱连接。
二次电池由于自身制造缺陷，或受外界温度、机械、充电异常等激励，电池内部会发生不可逆的副反应，如SEI膜分解、正极材料分解和电解液的分解，产生大量热，并释放出小分子气体，在特殊条件下(如高温、短路、振动、挤压和撞击等)，容易出现气胀、冒烟，甚至着火等热失控的情况，具有一定的安全隐患。
发明内容
本申请的目的是提供一种可提高安全性能的端盖组件、储能装置和用电设备。
为实现本申请的目的，本申请提供了如下的技术方案：
第一方面，本申请提供一种端盖组件，用于储能装置，所述端盖组件包括防爆阀支架，支架包括主体板、第一壁板和第二壁板；主体板包括第一面和第二面，所述第二面与所述储能装置的电极组件相对；第一壁板和第二壁板设置于所述第一面，并在所述主体板的长度方向上相对设置；所述第一壁板沿所述主体板的厚度方向且背向所述第二壁板的一侧延伸，第二壁板沿所述主体板的厚度方向且背向所述第一壁板的一侧延伸，所述主体板、所述第一壁板和所述第二壁板围成容纳空间，所述容纳空间用于容置所述防爆阀支架，所述主体板和所述第一壁板以及所述第二壁板均与所述防爆阀支架之间具有间隔距离以形成第一气流通道。
通过在主体板上设置相对的第一壁板和第二壁板，使得主体板、第一壁板和第二壁板可以用于围成一个容纳空间，防爆阀支架可以容置于该容纳空间内，以此防爆阀支架可以通过主体板、第一壁板和第二壁板的包裹而被保护；并且防爆阀支架还可以通过主体板、第一壁板和第二壁板与电极组件相隔离，防止防爆阀支架与电极组件接触而短路，也可以防止防爆阀支架外的杂质进入电极组件；同时，本申请还将第一壁板和第二壁板设计为弯曲延伸的形状，以此使得防爆阀支架在容置于容纳空间后可以与主体板、第一壁板和第二壁板之间形成弯曲的第一气流通道，有利于充分的气体流动；还由于第一壁板是背向第二壁板延伸，第二壁板是背向第一壁板延伸，所以第一壁板和第二壁板处的第一气流通道为斜坡状，有利于气体汇聚到防爆支架的下方。
一种实施方式中，所述第一壁板、所述第二壁板与所述防爆阀支架之间的距离S1为0.15mm～2.65mm。将上述间隔距离S1设计在该范围内，有利于气体通过第一气流通道流至容纳空间，并且可以防止其他异物通过该气道。当间隔距离S1小于上述范围时，间距尺寸过小，不足以形成供气体自由流动的气道；当间隔距离S1大于上述范围时，间距尺寸过大，端盖组件内的异物也容易通过该气道流通，如破碎的极耳或绝缘膜，容易顺气流方向漂入容纳 空间使得防爆阀失效。
一种实施方式中，所述第一壁板包括第一弯折板和第二弯折板，所述第一弯折板的一端连接所述第一面，所述第一弯折板的另一端背向所述第二壁板一侧延伸，所述第二弯折板的一端连接所述第一弯折板远离所述主体板的一端，所述第二弯折板的另一端朝背向所述第二壁板的一侧延伸。通过设计第一壁板包括第一弯折板和第二弯折板，且第一弯折板的一端背向第二壁板一侧延伸，第二弯折板的一端朝背向第二壁板的一侧延伸，使得第一壁板可以形成具有至少两层台阶的结构，从而可以使得气体流动更加均匀且流通平顺。
一种实施方式中，所述第一弯折板包括呈夹角连接的第一板和第二板，所述第一板连接所述第一面并沿所述主体板的厚度方向延伸，所述第二板朝背向所述第二壁板的一侧延伸。通过设置呈直角连接的第一板和第二板，有利于与防爆阀支架的外观结构配合，从而形成第一气流通道；同时第一板沿主体板的厚度方向延伸，第二板朝背向第二壁板的一侧延伸，使得第一弯折板形成台阶状，更有助于气体流至防爆阀支架的下方。
一种实施方式中，所述第二弯折板包括呈夹角连接的第三板和第四板，所述第三板沿所述主体板的厚度方向延伸并与所述第一弯折板呈夹角连接，所述第四板朝背向所述第二壁板的一侧延伸。通过设置呈直角连接的第三板和第四板，且第四板与第三板之间的连接角度可以为100°，使得第四板与第三板可以形成一个具有坡度的台阶，从而第四板周围的空气更容易通过此坡度台阶向下流动至第一弯折板处，以此提高气体的流向性，提高汇流效果。
一种实施方式中，所述支架还包括侧板，所述侧板与所述主体板的宽度方向上的一端连接，所述侧板沿所述主体板的厚度方向延伸，所述主体板远离所述侧板的一端边缘具有倒角。通过在支架上设计连接主体板的侧板，令侧板连接第一壁板和第二壁板，使得侧板可以对第一壁板和第二壁板起到支撑加固的作用，同时侧板有也有利于从侧面对端盖组件的其他部件进行保护；主体板远离侧板的一端边缘具有倒角有助于避免主体板的边缘过于尖锐，避免配时划伤极耳造成极耳破裂。
一种实施方式中，所述支架还包括凸块，所述凸块连接所述侧板远离所述主体板的一端，所述凸块沿所述主体板的宽度方向突出于所述侧板，且所述主体板与所述凸块相对，所述凸块在所述主体板上的正投影为梯形。通过在支架上设置凸块，并且凸块连接在侧板上，是为了利用凸块与端盖组件中的其他部件对接，从而加固端盖组件之间的稳固性；同时，凸块在主体板上的正投影为梯形，有以利于凸块对接时的平顺度，提高端盖组件装配时的可靠性。
一种实施方式中，所述第一壁板远离所述主体板的一端与所述凸块在所述主体板的厚度方向上具有间隔距离。通过设计第一壁板远离主体板的一端与凸块在主体板的厚度方向上具有间隔距离，使得第一壁板的一端和凸块错位设置，从而在沿主体板的长度方向流至第一壁板的路径上不会受到凸块的阻挡，气体能够形成错层的气流通道，可以避免气体与凸块的撞击形成紊流，同时还有利于气体的汇聚。
一种实施方式中，所述主体板包括透气板，所述透气板开设有通气孔，所述第一壁板和所述第二壁板连接在所述透气板的长度方向上的两端，并共同围成所述容纳空间，所述透气板与所述防爆阀支架具有间隔距离，防爆阀支架可以对结构强度较为薄弱的透气板提供缓冲支撑，当储能装置跌落或撞碰，透气板受到电解液向上的冲击力时，透气板在间隔距离范围内先向上弯折吸能；冲击力过大时，透气板向上弯折至抵接防爆阀支架停止，避免透气板过度弯折造成断裂，降低透气板断裂后的碎片划伤极耳，因此，可以提升储能装置的安全性能。通过设计主体板分为用于围成容纳空间的透气板，并在透气板上开设连通容纳空间的通气孔，使得容纳空间还可以通过通气孔与外部的形成通气，以此有利于让电极组件产生的气体穿过 流出壳体。
一种实施方式中，所述主体板与所述防爆阀支架的间隔距离S2为0.25mm～3.45mm。将上述间隔距离S2设计在该范围内，有利于气体通过第一气流通道流至容纳空间，并且可以防止其他异物通过该气道。当间隔距离S2小于上述范围时，间距尺寸过小，不足以形成供气体自由流动的气道；当间隔距离S2大于上述范围时，间距尺寸过大，端盖组件内的异物也容易通过该气道流通，如破碎的极耳或绝缘膜，容易顺气流方向漂入容纳空间使得防爆阀失效。
一种实施方式中，所述支架还包括至少一个筋条，所述筋条位于所述通气孔并分割所述通气孔形成多个子气孔。通过在通气孔上设置筋条，不但有利于分割通气孔以形成均匀的气体流向；同时，筋条还有利于对开设通气孔的透气板形成支撑，还可以用于阻挡破片。
一种实施方式中，所述主体板还包括支撑板，所述透气板包括第一透气板和第二透气板，所述支撑板和所述第一透气板在所述主体板的长度方向依次连接，所述第一透气板和第二透气板在所述主体板的宽度方向上对接，所述第二透气板沿所述宽度方向突出于所述支撑板。通过设计第二透气板沿宽度方向突出于支撑板，使得透气板具有较大的尺寸，所以可以开设较大的通气孔，从而有利于提高气体的流动体量。
一种实施方式中，所述第二透气板包括背向所述第一面的第三面，所述第一壁板具有第四面，所述第三面连接所述第四面，且所述第三面和所述第四面之间具有倒角。通过在第二透气板包括背向第一面的第三面和第一壁板的第四面上形成倒角，有利于实现对透气板下方的气体实现导流，引导容纳空间外的气体可以通过第一壁板和第二壁板形成内外循环的环流。
一种实施方式中，所述第二壁板与所述第一壁板相对对称面镜像对称。通过设计第二壁板和第一壁板为镜像对称，能够使得第一气流通道可以为对称结构，降低支架生产的模具数量，提升了支架的零件通配率，从而降低生产成本。
一种实施方式中，所述主体板上开设有第一缺口，所述防爆阀支架开设有第二缺口，所述第一缺口和所述第二缺口在所述主体板的厚度方向上正对。通过在主体板上开设有第一缺口，防爆阀支架开设有第二缺口，且第一缺口和第二缺口正对，有利于在容纳空间内再形成一条竖直的气体流道，提升气体聚集的通道数，最终提高防爆阀支架附近的空气流通密度。
一种实施方式中，所述支架还包括侧板和卡扣，所述侧板与所述主体板的宽度方向上的一端连接，所述侧板沿所述主体板的厚度方向延伸，所述卡扣凸设于所述侧板，并容置于所述容纳空间，所述卡扣用于固定所述防爆阀支架。通过在支架上设置卡扣，有利于通过该卡扣将支架和防爆阀支架相互固定。
一种实施方式中，所述端盖组件还包括绝缘构件，所述绝缘构件与所述支架连接，所述绝缘构件包括与所述防爆阀支架相对的第一边板，所述第一边板开设有第三缺口。通过在绝缘构件与防爆阀支架相对的第一边板开设第三缺口，有利于使得绝缘构件的注液孔通过第三缺口与第一气体流道连通，提高空气流通路径增加空气在端盖组件内的流动频率。
一种实施方式中，所述支架包括连接在所述绝缘构件的宽度方向上的两侧的第一支架和第二支架，所述第一支架和所述第二支架镜像对称，所述第一支架和所述第二支架之间具有间隔距离以形成第二气流通道，所述第三缺口与所述第二气流通道相对而连通。通过设计支架包括镜像对称的第一支架和第二支架，以此可以通过第一支架和第二支架固定绝缘构件和保护防爆阀支架；同时，第一支架和第二支架的间隔距离形成的第二气流通道可以用于与第三缺口连通，提高气体聚集的通道数，并且，降低支架生产的模具数量，提升了支架的零件通配率，从而降低生产成本。
一种实施方式中，所述第一支架和所述第二支架之间的间隔距离S3为0.55mm～5.25mm。 将上述间隔距离S3设计在该范围内，有利于气体通过第二气流通道流至容纳空间，并且可以防止其他异物通过该气道。当间隔距离S3小于上述范围时，间距尺寸过小，不足以形成供气体自由流动的气道；当间隔距离S3大于上述范围时，间距尺寸过大，端盖组件内的异物也容易通过该气道流通，如破碎的极耳或绝缘膜，容易顺气流方向漂入容纳空间使得防爆阀失效。
第二方面，本申请还提供一种储能装置，所述储能装置包括电极组件、壳体以及第一方面各种实施方式中任一项所述的端盖组件，所述电极组件设置于所述壳体内，所述端盖组件电连接于所述电极组件。
第三方面，一种用电设备，所述用电设备包括第二方面所述的储能装置，所述储能装置为所述用电设备供电。
附图说明
为了更清楚地说明本申请实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述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，还可以根据这些附图获得其他的附图。
图1是一种实施例的储能装置的立体图；
图2是一种实施例的储能装置的爆炸图；
图3是一种实施例的端盖组件的爆炸图；
图4是一种实施例的支架的正视图；
图5是一种实施例的主体板、第一壁板和第二壁板以及防爆阀支架的正视图；
图6是一种实施例的第一壁板的正视图；
图7是一种实施例的支架的俯视图；
图8是一种实施例的透气板的结构示意图；
图9是一种实施例的支架、绝缘构件和防爆阀支架的结构示意图；
图10是一种实施例的防爆阀支架的结构示意图；
图11是一种实施例的支架和绝缘构件的结构示意图。
附图标记说明：
100-储能装置，10-端盖组件，20-电极组件，30-壳体；
11-支架，111-主体板，1111-第一面，1112-第二面，1113-透气板，1113A-第一透气板，1113B-第二透气板，1114-通气孔，1114A-子气孔，1115-筋条，1116-支撑板，1116A-左支撑板，1116B-右支撑板，1117-第三面，112-第一壁板，1121-第一弯折板，1121A-第一板，1121B-第二板，1122-第二弯折板，1122A-第三板，1122B-第四板，1123-第四面，113-第二壁板，114、114A、114B-容纳空间，115-第一气流通道，116-侧板，1161-连接面，117-凸块，118-第一缺口，119-卡扣，11A-第一支架，11B-第二支架，11S-第二气流通道；
12-防爆阀支架，121-第二缺口，122-挡板，123-第一连接板，124-第二连接板，125-固定孔，13-绝缘构件，13A-正极盖板，13B-负极盖板，131-基板，132-第一边板，133-注液孔，134-第三缺口，14-主盖板；
α-第一夹角，β-第二夹角，γ-第三夹角，δ-第四夹角，η-第五夹角。
具体实施方式
下面将结合本申请实施方式中的附图，对本申请实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本申请一部分实施方式，而不是全部的实施方式。基于本申请中的实施方式，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式，都属于本申请保护的范围。
需要说明的是，当组件被称为“固定于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中组件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
本申请实施例提供一种储能装置100，请参考图1和图2，包括电极组件20、壳体30以及端盖组件10，电极组件20设置于壳体30内，端盖组件10电连接于电极组件20。端盖组件10还盖设在壳体30的开口处并封闭壳体30。
可选的，请参考图3，端盖组件10包括主盖板14和防爆阀支架12，主盖板14上的中部开设有防爆口(图中未展示)，防爆口用于安装防爆片(图中未展示)，防爆片通过防爆阀支架12固定在主盖板14上。
本申请实施例提供一种用于储能装置100的支架11，请参考图4和图5，支架11为端盖组件10的部分，支架11包括主体板111、第一壁板112和第二壁板113。
支架11为绝缘材质，具体可为塑料材质，例如PP(聚丙烯)材质。主体板111包括相背的第一面1111和第二面1112，第二面1112与储能装置100的电极组件20相对。主体板111呈板状，板面大体形状呈凸型，主体板111具有长度、宽度和厚度，后续描述各结构时，以主体板111的长度的延伸方向为长度方向，宽度的延伸方向为宽度方向，厚度的延伸方向为厚度方向。第一面1111和第二面1112为厚度方向上相背的两面。主盖板14朝向第一面1111，且主盖板14可以与主体板111平行，上述中的防爆阀支架12位于主体板111的主盖板14之间。
第一壁板112和第二壁板113，设置于第一面1111，并在主体板111的长度方向上相对设置。主体板111沿长处方向依次分为左部、中部和右部，第一壁板112和第二壁板113连接在中部上。第一壁板112和第二壁板113均呈板状。第一壁板112、第二壁板113和主体板111可为一体式结构，例如为注塑工艺一体成型。
第一壁板112沿主体板111的厚度方向且背向第二壁板113的一侧弯曲延伸，第二壁板113沿主体板111的厚度方向且背向第一壁板112的一侧弯曲延伸，主体板111、第一壁板112和第二壁板113围成容纳空间114，容纳空间114用于容置防爆阀支架12，主体板111和第一壁板112以及第二壁板113均与防爆阀支架12之间具有间隔距离以形成第一气流通道115。
可选的，第一壁板112的弯曲延伸路径的形状可以为波浪形或齿形。第二壁板113的弯曲延伸路径的形状可以为波浪形或齿形。第一壁板112的弯曲延伸路径的形状和第二壁板113的弯曲延伸路径的形状可以相同或不同。
可选的，请参考图5，防爆阀支架12的尺寸应该小于容纳空间114的容积，且防爆阀支架12的外形可以和容纳空间114的容纳形状类似，以此主体板111和第一壁板112以及第二 壁板113均与防爆阀支架12之间具有间隔距离以形成第一气流通道115。并且，沿主体板111的厚度方向对端盖组件10进行截面，第一气流通道115的形状可以为曲型。
可以理解的，在防爆阀支架12位于容纳空间114后，容纳空间114可以通过防爆阀支架12分割从而形成第一气流通道115，所以第一气流通道115始终应该为容纳空间114的部分。
可选的，第一气流通道115的延伸形状可以为“几”型。还可以为“U”型。可以理解地，由于第一气流通道115为主体板111、第一壁板112和第二壁板113以及防爆阀支架12围成形成，所以第一气流通道115的延伸形状应该与主体板111、第一壁板112和第二壁板113连接后所形成的截面形状相近。
通过在主体板111上设置相对的第一壁板112和第二壁板113，使得主体板111、第一壁板112和第二壁板113可以用于围成一个容纳空间114，防爆阀支架12可以容置于该容纳空间114内，以此防爆阀支架12可以通过主体板111、第一壁板112和第二壁板113的包裹而被保护；并且防爆阀支架12还可以通过主体板111、第一壁板112和第二壁板113与电极组件20相隔离，防止防爆阀支架12与电极组件20接触而短路，也可以防止防爆阀支架12外的杂质进入电极组件20；同时，本申请还将第一壁板112和第二壁板113设计为弯曲延伸的形状，以此使得防爆阀支架12在容置于容纳空间114后可以与主体板111、第一壁板112和第二壁板113之间形成弯曲的第一气流通道115，有利于充分的气体流动；还由于第一壁板112是背向第二壁板113延伸，第二壁板113是背向第一壁板112延伸，所以第一壁板112和第二壁板113处的第一气流通道115为斜坡状，有利于气体汇聚到防爆支架的下方。
一种实施方式中，请参考图5，第一壁板112、第二壁板113与防爆阀支架12之间的间隔距离S1为0.15mm～2.65mm。间隔距离S1的具体尺寸可以为0.95、1.05mm、1.1mm、1.25mm、1.3mm。将上述间隔距离S1设计在该范围内，有利于气体通过第一气流通道115流至容纳空间，并且可以防止其他异物通过该气道。当间隔距离S1小于上述范围时，间距尺寸过小，不足以形成供气体自由流动的气道；当间隔距离S1大于上述范围时，间距尺寸过大，端盖组件10内的异物也容易通过该气道流通，如破碎的极耳或绝缘膜，容易顺气流方向漂入容纳空间使得防爆阀失效。
一种实施方式中，请参考图6，第一壁板112包括第一弯折板1121和第二弯折板1122，第一弯折板1121的一端连接第一面1111，第一弯折板1121的另一端背向第二壁板113一侧延伸，第二弯折板1122的一端连接第一弯折板1121远离主体板111的一端，第二弯折板1122的另一端朝背向第二壁板113的一侧延伸。
具体的，沿主体板111的厚度方向对第一弯折板1121和第二弯折板1122做截面，第一弯折板1121的截面形状可以为圆滑的曲型；第二弯折板1122的截面形状也可以为圆滑的曲型。可以理解的，第一弯折板1121和第二弯折板1122为圆滑的曲型有益于气体平滑流通，可以避免气体在第一气流通道115中出现乱流的现象。同时，圆滑的曲型也可以避免第一壁板112在使用中出现刮伤毛边的现象。
可选的，第一弯折板1121的截面形状还可以为尖锐的夹角型；第二弯折板1122的截面形状也可以为尖锐的夹角型。可以理解的，支架11可以通过倒模形成，所以第一弯折板1121和第二弯折板1122为尖锐的夹角型有助于模具的制作，可以减少模具磨边倒角的步骤。
可选的，第一弯折板1121的截面形状可以和第二弯折板1122的截面形状相同，也可以不同。举例而言，第一弯折板1121的截面形状可以为尖锐的夹角型，第二弯折板1122的截面形状可以为圆滑的曲型，具体可以根据需求设计。
可选的，第二壁板113包括第三弯折板和第四弯折板(图中未示出)，第三弯折板的一端 连接第一面1111，第三弯折板的另一端背向第一壁板112一侧延伸，第四弯折板的一端连接第三弯折板远离主体板111的一端，第四弯折板的另一端朝背向第一壁板112的一侧延伸。并且，第三弯折板和第四弯折板的截面形状可以为上述中圆滑的曲型或尖锐的夹角型。
通过设计第一壁板112包括第一弯折板1121和第二弯折板1122，且第一弯折板1121的一端背向第二壁板113一侧延伸，第二弯折板1122的一端朝背向第二壁板113的一侧延伸，使得第一壁板112可以形成具有至少两层台阶的结构，从而可以使得气体流动更加均匀且流通平顺。
一种实施方式中，请参考图6，第一弯折板1121包括呈夹角连接的第一板1121A和第二板1121B，第一板1121A连接第一面1111并沿主体板111的厚度方向延伸，第二板1121B朝背向第二壁板113的一侧延伸。
具体的，第一板1121A与主体板111之间呈夹角连接。可选的，第一板1121A与主体板111之间的连接角度可以为90°的第一夹角α，当然，第一夹角α还以为80°、85°、95°或100°。可以理解的，第一板1121A连接第一面1111并沿主体板111的厚度方向延伸，并不限制于二者之间的角度。并且该角度不应该过大或过小，因为第一板1121A与主体板111之间的连接角度过大或过小时，会使得第一壁板112在主体板111的厚度方向上的尺寸不足，而导致第一壁板112对支架11的整体支撑性较差，支架11稳定性不足。
可选的，第二板1121B与第一板1121A之间呈夹角连接。可选的，第二板1121B与第一板1121A之间的连接角度可以为100°的第二夹角β，当然，第二夹角β还以为90°、95°、105°或110°。可以理解的，第二板1121B连接第一板1121A背向第二壁板113的一面，并背向第二壁板113的一侧延伸，所以不限制于二者之间的角度，而大于90°的第二夹角β有利于对第一气流通道115内的气体进行导流，使得气流可以具有流向主体板111的趋势。但是，第二板1121B与第一板1121A之间的连接角度不应该过大或过小；连接角度过小时，第二板1121B向第一板1121A背向第二壁板113的一面过于靠近，无法形成弯曲的延伸的第一气流通道115；连接角度过大时，第二板1121B趋近于与第一板1121A平行，无法形成弯曲的延伸的第一气流通道115。
可选的，第一板1121A相背的两面可以为平行的平面，或者其中一面可以为向外突出的曲面，或者相背的两面均为向外突出的曲面。第二板1121B相背的两面可以为平行的平面，或者其中一面可以为向外突出的曲面，或者相背的两面均为向外突出的曲面。
通过设置呈直角连接的第一板1121A和第二板1121B，有利于与防爆阀支架12的外观结构配合，从而形成第一气流通道115；同时第一板1121A沿主体板111的厚度方向延伸，第二板1121B朝背向第二壁板113的一侧延伸，使得第一弯折板1121形成台阶状，更有助于气体流至防爆阀支架12的下方。
一种实施方式中，请参考图6，第二弯折板1122包括呈夹角连接的第三板1122A和第四板1122B，第三板1122A沿主体板111的厚度方向延伸并与第一弯折板1121呈夹角连接，第四板1122B朝背向第二壁板113的一侧延伸。
具体的，第三板1122A与第二板1121B之间呈夹角连接。可选的，第三板1122A与第二板1121B之间的连接角度可以为90°的第三夹角γ，当然，第三夹角γ还以为80°、85°、95°或100°。可以理解的，第三板1122A连接第二板1121B背向主体板111的一面并沿主体板111的厚度方向延伸，并不限制于二者之间的角度。并且该角度不应该过大或过小，因为第三板1122A与第二板1121B之间的连接角度过大或过小时，均无法形成弯曲的延伸的第一气流通道115，且还容易导致第一壁板112在厚度方向上的尺寸不足，第一壁板112对支架11的整 体支撑性较差。
可选的，第四板1122B与第三板1122A之间呈夹角连接。可选的，第四板1122B与第三板1122A之间的连接角度可以为100°的第四夹角δ，当然，第四夹角δ还以为90°、95°、105°或110°。可以理解的，第四板1122B连接第三板1122A背向第二壁板113的一面，并背向第二壁板113的一侧延伸，所以不限制于二者之间的角度，而大于90°的第四夹角δ有利于对第一气流通道115口的气体进行导流，使得气流可以具有流向主体板111的趋势。但是，第四板1122B与第三板1122A之间的连接角度不应该过大或过小，因为第四板1122B与第三板1122A之间的连接角度过大或过小时，均无法形成弯曲的延伸的第一气流通道115。
可选的，第三板1122A相背的两面可以为平行的平面，或者其中一面可以为向外突出的曲面，或者相背的两面均为向外突出的曲面。第四板1122B相背的两面可以为平行的平面，或者其中一面可以为向外突出的曲面，或者相背的两面均为向外突出的曲面。
通过设置呈直角连接的第三板1122A和第四板1122B，且第四板1122B与第三板1122A之间的连接角度可以为100°，使得第四板1122B与第三板1122A可以形成一个具有坡度的台阶，从而第四板1122B周围的空气更容易通过此坡度台阶向下流动至第一弯折板1121处，以此提高气体的流向性，提高汇流效果。
一种实施方式中，请参考图7，支架11还包括侧板116，侧板116与主体板111的宽度方向上的一端连接，侧板116沿主体板111的厚度方向延伸，主体板111远离侧板116的一端边缘具有倒角。
具体的，侧板116与主体板111之间可以呈夹角连接，可选的，侧板116与主体板111之间的连接角度可以为90°。侧板116沿主体板111的厚度方向延伸，且第一壁板112和第二壁板113均与侧板116连接，共同围成上述中的容纳空间114。
可选的，主体板111包括相连依次相连的第一边缘、第二边缘和第三边缘(图中未示出)。其中侧板116与主体板111的第三边缘连接，第三边缘与第一边缘相对。第二边缘和第一边缘均可成型有倒角。以此在安装支架11至壳体30上时，可以避免装配时划伤极耳造成极耳破裂。
通过在支架11上设计连接主体板111的侧板116，令侧板116连接第一壁板112和第二壁板113，使得侧板116可以对第一壁板112和第二壁板113起到支撑加固的作用，同时侧板116有也有利于从侧面对端盖组件10的其他部件进行保护；主体板111远离侧板116的一端边缘具有倒角有助于避免主体板111的边缘过于尖锐，避免配时划伤极耳造成极耳破裂。
一种实施方式中，请参考图7，支架11还包括凸块117，凸块117连接侧板116远离主体板111的一端，凸块117沿主体板111的宽度方向突出于侧板116，且主体板111与凸块117相对，凸块117在主体板111上的正投影为梯形。
具体的，侧板116可以包括连接面1161，第一壁板112和第二壁板113均连接在连接面1161上。凸块117与连接面1161连接且位于远离主体板111的一端。凸块117用于与绝缘构件13对接。
可选的，凸块117沿主体板111的宽度方向突出于连接面1161，且主体板111与凸块117相对。可以理解地，凸块117可以为板状，且凸块117的板面可以和主体板111的板面平行。
可选的，凸块117在主体板111上的正投影为梯形，具体可以为正梯形。并且，凸块117较长的底边可以与侧板116连接，所以凸块117为自向远离侧板116的方向为缩口形状。
可选的，凸块117在主体板111上的正投影还可以为六边形。具体在凸块117远离侧板116的一端可以具有倒角。
通过在支架11上设置凸块117，并且凸块117连接在侧板116上，是为了利用凸块117与端盖组件10中的其他部件对接，从而加固端盖组件10之间的稳固性；同时，凸块117在主体板111上的正投影为梯形，有以利于凸块117对接时的平顺度，提高端盖组件10装配时的可靠性。
一种实施方式中，第一壁板112远离主体板111的一端与凸块117在主体板111的厚度方向上具有间隔距离。具体的，第一壁板112在主体板111厚度方向上的高,可以不超过侧板116的高度。可以理解的，自主体板111的长度方向上观察第一壁板112和凸块117时，可以为第一壁板112的一端和凸块117会形成错位，所以凸块117在长度方向上不会对第一壁板112产生遮挡。
通过设计第一壁板112远离主体板111的一端与凸块117在主体板111的厚度方向上具有间隔距离，使得第一壁板112的一端和凸块117错位设置，从而在沿主体板111的长度方向流至第一壁板112的路径上不会受到凸块117的阻挡，气体能够形成错层的气流通道，可以避免气体与凸块117的撞击形成紊流，同时还有利于气体的汇聚。
一种实施方式中，请参考图8，主体板111包括透气板1113，透气板1113开设有通气孔1114，第一壁板112和第二壁板113连接在透气板1113的长度方向上的两端，并共同围成容纳空间114，透气板1113与防爆阀支架12具有间隔距离。
具体地，透气板1113位于主体板111的中部，透气板1113开设有贯穿主体板111的厚度方向上的通气孔1114，以此使得容纳空间114可以和外部空间相连通。通气孔1114的形状可以为四边形。还可以为圆形、椭圆形或其他多边形，不做限制。
可选的，透气板1113包括在长度方向上相对的两块边板，分别为左边板和右边板。第一壁板112可以和左边板呈夹角连接，第二壁板113可以和右边板呈夹角连接，具体角度可参照上述实施方式所述。
可选的，透气板1113与防爆阀支架12具有间隔距离，且通气孔1114可以和防爆阀支架12正对。
可以理解的，防爆阀支架12可以对结构强度较为薄弱的透气板1113提供缓冲支撑，当储能装置100跌落或撞碰，透气板1113受到电解液向上的冲击力时，透气板1113在间隔距离范围内先向上弯折吸能；冲击力过大时，透气板1113向上弯折至抵接防爆阀支架12停止，避免透气板1113过度弯折造成断裂，降低透气板1113断裂后的碎片划伤极耳，因此，可以提升储能装置100的安全性能。通过设计主体板111分为用于围成容纳空间114的透气板1113，并在透气板1113上开设连通容纳空间114的通气孔1114，使得容纳空间114还可以通过通气孔1114与外部的形成通气，以此有利于让电极组件20产生的气体穿过流出壳体30。
一种实施方式中，请参考图5，主体板111与防爆阀支架12的间隔距离S2为0.25mm～3.45mm。间隔距离S2的具体尺寸可以为1.3、1.4mm、1.5mm、1.6mm、1.7mm。将上述间隔距离S2设计在该范围内，有利于气体通过第一气流通道流至容纳空间，并且可以防止其他异物通过该气道。当间隔距离S2小于上述范围时，间距尺寸过小，不足以形成供气体自由流动的气道；当间隔距离S2大于上述范围时，间距尺寸过大，端盖组件内的异物也容易通过该气道流通，如破碎的极耳或绝缘膜，容易顺气流方向漂入容纳空间使得防爆阀失效。
一种实施方式中，请参考图8，支架11还包括至少一个筋条1115，筋条1115位于通气孔1114并分割通气孔1114形成多个子气孔1114A。
具体的，筋条1115在透气板1113的宽度方向上延伸，其两端分别连接围合通气孔1114的上边板和下边板。其中，上边板和下边板均与上述中的左边板和右边板连接。以此，筋条 1115可以分割通气孔1114形成多个子气孔1114A。
可选的，筋条1115的数量可以为三个，三个筋条1115沿长度方向依次排列。并且，相邻两个筋条1115之间的间距可以相同。最外侧的两个筋条1115分别和左边板和右边的距离也可以相同。可以理解的，多个子气孔1114A的尺寸可以相同。
通过在通气孔1114上设置筋条1115，不但有利于分割通气孔1114以形成均匀的气体流向；同时，筋条1115还有利于对开设通气孔1114的透气板1113形成支撑，还可以用于阻挡破片。
一种实施方式中，请参考图7和图8，主体板111还包括支撑板1116，透气板1113包括第一透气板1113A和第二透气板1113B，支撑板1116和第一透气板1113A在主体板111的长度方向依次连接，第一透气板1113A和第二透气板1113B在主体板111的宽度方向上对接，第二透气板1113B沿宽度方向突出于支撑板1116。
具体的，主体板111还包括左支撑板1116A和右支撑板1116B，其中，左支撑板1116A与上述实施方式中的左边板连接，右支撑板1116B与上述实施方式中的右边板连接。并且，上述实施方式中的透气孔可以分别位于左支撑板1116A和右支撑板1116B上。
可选的，透气板1113在宽度方向上可以分为第一透气板1113A和第二透气板1113B，第一透气板1113A和第二透气板1113B对接形成通气孔1114。第一透气板1113A可以包括上述实施方式中的上边板，和部分的左边板和右边板。第二透气板1113B可以包括上述实施方式中的下边板，和部分的左边板和右边板。
可选的，左支撑板1116A、第一透气板1113A和右支撑板1116B在主体板111的长度方向上依次连接。第二透气板1113B沿宽度方向突出于支撑板1116。可以理解地，透气板1113可以为一体式结构，分为第一透气板1113A和第二透气板1113B主要为便于描述。
通过设计第二透气板1113B沿宽度方向突出于支撑板1116，使得透气板1113具有较大的尺寸，所以可以开设较大的通气孔1114，从而有利于提高气体的流动体量。
一种实施方式中，请参考图8，第二透气板1113B包括背向第一面1111的第三面1117，第一壁板112具有第四面1123，第三面1117连接第四面1123，且第三面1117和第四面1123之间具有倒角。
具体地，第一透气板1113A可以包括部分第二面1112，第三透气板1113可以包括部分第二面1112和第三面1117，且第三面1117和第二面1112可以为不平行的两个面。第二面1112和第三面1117之间可以形成第五夹角η。第三面1117相对第二面1112向下倾斜。以此用于导流气体。
可选的，第四面1123可以为上述实施方式中第一板1121A上背向第二壁板113的面。所以，第四面1123与第三面1117连接，且第三面1117和第四面1123之间具有倒角。
通过在第二透气板1113B包括背向第一面1111的第三面1117和第一壁板112的第四面1123上形成倒角，有利于实现对透气板1113下方的气体实现导流，引导容纳空间114外的气体可以通过第一壁板112和第二壁板113形成内外循环的环流。
一种实施方式中，第二壁板113与第一壁板112相对对称面镜像对称。具体的，支架11可以为镜像对称结构，支架11的对称面且可以位于支架11的中部。举例而言，在主体板111的长度方向上取中点，并在中点位置做垂直于主体板111的截面，支架11所截取的左右两端可以关于该截面呈镜像对称。并且，所产生的截面可以为对称面。
可选的，第一壁板112和第二壁板113分别位于左右两端上，所以第二壁板113相对第一壁板112镜像对称。并且，上述实施方式中的凸块117可以为两个且为镜像对称。上述实 施方式中的左支撑板1116A和右支撑板1116B也可以为相互的镜像对称。
通过设计第二壁板113和第一壁板112为镜像对称，能够使得第一气流通道115可以为对称结构，降低支架11生产的模具数量，提升了支架11的零件通配率，从而降低生产成本。
一种实施方式中，请参考图7、图9和图10，主体板111上开设有第一缺口118，防爆阀支架12开设有第二缺口121，第一缺口118和第二缺口121在主体板111的厚度方向上正对。
具体的，在上述实施方式中的左边板上包括第一侧壁(图中未示出)，右边板上包括第二侧壁，第一侧壁和第二侧壁相对且共同围合通气孔1114。第一侧壁和第二侧壁分别至少部分沿透气板1113的长度方向内凹形成第一缺口118。所以第一缺口118的数量为两个，且均与通气孔1114连通。
可选的，请参考图10，防爆阀支架12可以包括挡板122、第一连接板123和第二连接板124。挡板122与主体板111和主盖板14相对。第一连接板123和第二连接板124分别连接挡板122长度方向上的两端。第一连接板123和第二连接板124还用于与主盖板14连接。
可选的，防爆阀支架12也可以为镜像对称结构，且对称的面可以与上述实施方式中支架11的对称面相同。防爆阀支架12沿主体板111的厚度方向上的截面形状可以为“几”型。可以理解的，上述中的第一连接板123和第二连接板124均可以为弯板。
可选的，第二缺口121贯穿挡板122相背的两面，且与第一缺口118正对。
通过在主体板111上开设有第一缺口118，防爆阀支架12开设有第二缺口121，且第一缺口118和第二缺口121正对，有利于在容纳空间114内再形成一条竖直的气体流道，提升气体聚集的通道数，最终提高防爆阀支架12附近的空气流通密度。
一种实施方式中，请参考图7，支架11还包括侧板116和卡扣119，侧板116与主体板111的宽度方向上的一端连接，侧板116沿主体板111的厚度方向延伸，卡扣119凸设于侧板116，并容置于容纳空间114，卡扣119用于固定防爆阀支架12。
具体的，卡扣119自侧板116的连接面1161上突出，并位于容纳空间114内。卡扣119可以为“1”型扣，用于固定防爆阀支架12。并且，由于支架11为镜像对称，所以卡扣119的数量可以为两个，且呈镜像对称。
可选的，请参考图9，防爆阀支架12还开设有两个固定孔125，分别在第一连接板123和第二连接板124上。由于防爆阀支架12为镜像对称。故以第一连接板123为例，固定孔125贯穿连接板相背的两面，卡扣119至少有部分伸入到固定孔125中与第一连接板123连接固定。
可选的，卡扣119的位置可以与上述实施方式中的第一缺口118和第二缺口121正对。以此有利于通过第一缺口118观察卡扣119是否与第一连接板123和第二连接板124卡合。
通过在支架11上设置卡扣119，有利于通过该卡扣119将支架11和防爆阀支架12相互固定。
一种实施方式中，请参考图11，端盖组件10还包括绝缘构件13，绝缘构件13与支架11连接，绝缘构件13包括与防爆阀支架12相对的第一边板132，第一边板132开设有第三缺口134。
具体的，绝缘构件13包括正极盖板13A和负极盖板13B，正极盖板13A和负极盖板13B均与支架11连接，且在主体板111的长度方向上正极盖板13A和负极盖板13B相对设置。
可选的，正极盖板13A和负极盖板13B均为绝缘材质，具体可为塑料材质，例如PP(聚丙烯)材质。正极盖板13A和负极盖板13B均大体呈板状，板面大体呈长方形。正极盖板13A和负极盖板13B的长宽厚方向与主体板111的长宽厚方向一致。
可选的，正极盖板13A包括基板131和第一边板132。基板131可为板状，板面为长方形，基板131的长度方向、宽度方向和厚度方向即为前述的正极盖板13A的长度方向、宽度方向和厚度方向。第一边板132可为板状、条状、块状等，不做限制。第一边板132和基板131可为一体式结构，例如为注塑工艺一体成型。第一边板132设置在基板131的长度方向上靠近负极盖板13B的端。
可选的，基板131上开设有贯穿厚度方向的注液孔133，且注液孔133靠近第一边板132的，以使第一边板132围合注液孔133，所以注液孔133至少有一条直边。
可选的，第一边板132靠近上述中第一壁板112远离主体板111的一端，第一边板132自连接基板131的一面形成有内凹的第三缺口134。防爆阀支架12位于容纳空间114后，第三缺口134与第一气流通道115连通。
通过在绝缘构件13与防爆阀支架12相对的第一边板132开设第三缺口134，有利于使得绝缘构件13的注液孔133通过第三缺口134与第一气体流道连通，提高空气流通路径增加空气在端盖组件10内的流动频率。
一种实施方式中，请参考图3和图11，支架11包括连接在绝缘构件13的宽度方向上的两侧的第一支架11A和第二支架11B，第一支架11A和第二支架11B镜像对称，第一支架11A和第二支架11B之间具有间隔距离以形成第二气流通道11S，第三缺口134与第二气流通道11S相对而连通。
具体的，端盖组件10中支架11的数量可以为两个，分别为第一支架11A和第二支架11B。第一支架11A和第二支架11B为镜像对称。所以，第一支架11A和第二支架11B均具有上述实施方式中所述的支架11的全部特征。
可选的，第一支架11A围成容纳空间114A，第二支架11B围成容纳空间114B，容纳空间114A和容纳空间114B共同组成主容纳空间114，上述中的防爆阀支架12容纳于主容纳空间114。
可选的，第一支架11A和第二支架11B之间具有间隔距离以形成第二气流通道11S。第二气流通道11S的延伸路径可以与第二气流通道11S的延伸路径相同且相对。所以第二气流通道11S用于连通主容纳空间114。
可选的，绝缘构件13位于第一支架11A和第二支架11B之间，并分别连接第一支架11A和第二支架11B。第三缺口134与第二气流通道11S相对而连通。
通过设计支架11包括镜像对称的第一支架11A和第二支架11B，以此可以通过第一支架11A和第二支架11B固定绝缘构件13和保护防爆阀支架12；同时，第一支架11A和第二支架11B的间隔距离形成的第二气流通道11S可以用于与第三缺口134连通，提高气体聚集的通道数，并且，降低支架11生产的模具数量，提升了支架的零件通配率，从而降低生产成本。
一种实施方式中，请参考图11，第一支架11A和第二支架11B之间的间隔距离S3为0.55mm～5.25mm。间隔距离S3的具体尺寸可以为1.6、1.7mm、1.85mm、1.95mm、2.0mm。将上述间隔距离S3设计在该范围内，有利于气体通过第二气流通道流至容纳空间，并且可以防止其他异物通过该气道。当间隔距离S3小于上述范围时，间距尺寸过小，不足以形成供气体自由流动的气道；当间隔距离S3大于上述范围时，间距尺寸过大，端盖组件内的异物也容易通过该气道流通，如破碎的极耳或绝缘膜，容易顺气流方向漂入容纳空间使得防爆阀失效。
基于前述本申请实施例的支架11、端盖组件10以及储能装置100，本申请实施例还提供一种用电设备，包括本申请实施例中的储能装置100，该储能装置100用于为用电设备供电。
在本申请实施例的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖 直”、“水平”、“内”、“外”等指标的方位或位置关系为基于附图所述的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或原件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
以上所揭露的仅为本申请一种较佳实施例而已，当然不能以此来限定本申请之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本申请权利要求所作的等同变化，仍属于申请所涵盖的范围。

Claims (21)

  1. 一种端盖组件(10)，用于储能装置(100)，其中，包括支架(11)和防爆阀支架(12)；
    所述支架(11)包括主体板(111)、第一壁板(112)和第二壁板(113)，所述主体板(111)包括第一面(1111)和第二面(1112)，所述第二面(1112)与所述储能装置(100)的电极组件(20)相对；所述第一壁板(112)和所述第二壁板(113)设置于所述第一面(1111)，并在所述主体板(111)的长度方向上相对设置；
    所述第一壁板(112)沿所述主体板(111)的厚度方向且背向所述第二壁板(113)的一侧延伸，第二壁板(113)沿所述主体板(111)的厚度方向且背向所述第一壁板(112)的一侧延伸，所述主体板(111)、所述第一壁板(112)和所述第二壁板(113)围成容纳空间(114)，所述容纳空间(114)用于容置所述防爆阀支架(12)，所述主体板(111)和所述第一壁板(112)以及所述第二壁板(113)均与所述防爆阀支架(12)之间具有间隔距离以形成第一气流通道(115)。
  2. 根据权利要求1所述的端盖组件(10)，其中，所述第一壁板(112)、所述第二壁板(113)与所述防爆阀支架(12)之间的距离S1为0.15mm～2.65mm。
  3. 根据权利要求1或2所述的端盖组件(10)，其特征在于，所述第一壁板(112)包括第一弯折板(1121)和第二弯折板(1122)，所述第一弯折板(1121)的一端连接所述第一面(1111)，所述第一弯折板(1121)的另一端背向所述第二壁板(113)一侧延伸，所述第二弯折板(1122)的一端连接所述第一弯折板(1121)远离所述主体板(111)的一端，所述第二弯折板(1122)的另一端朝背向所述第二壁板(113)的一侧延伸。
  4. 根据权利要求3所述的端盖组件(10)，其中，所述第一弯折板(1121)包括呈夹角连接的第一板(1121A)和第二板(1121B)，所述第一板(1121A)连接所述第一面(1111)并沿所述主体板(111)的厚度方向延伸，所述第二板(1121B)朝背向所述第二壁板(113)的一侧延伸。
  5. 根据权利要求3或4所述的端盖组件(10)，其中，所述第二弯折板(1122)包括呈夹角连接的第三板(1122A)和第四板(1122B)，所述第三板(1122A)沿所述主体板(111)的厚度方向延伸并与所述第一弯折板(1121)呈夹角连接，所述第四板(1122B)朝背向所述第二壁板(113)的一侧延伸。
  6. 根据权利要求1-5任意一项所述的端盖组件(10)，其中，所述支架(11)还包括侧板(116)，所述侧板(116)与所述主体板(111)的宽度方向上的一端连接，所述侧板(116)沿所述主体板(111)的厚度方向延伸，所述主体板(111)远离所述侧板(116)的一端边缘具有倒角。
  7. 根据权利要求6所述的端盖组件(10)，其中，所述支架(11)还包括凸块(117)，所述凸块(117)连接所述侧板(116)远离所述主体板(111)的一端，所述凸块(117)沿所述主体板(111)的宽度方向突出于所述侧板(116)，且所述主体板(111)与所述凸块(117)相对，所述凸块(117)在所述主体板(111)上的正投影为梯形。
  8. 根据权利要求7所述的端盖组件(10)，其中，所述第一壁板(112)远离所述主体板(111)的一端与所述凸块(117)在所述主体板(111)的厚度方向上具有间隔距离。
  9. 根据权利要求6-8任意一项所述的端盖组件(10)，其中，所述主体板(111)包括透气板(1113)，所述透气板(1113)开设有通气孔(1114)，所述第一壁板(112)和所述第二壁板(113)连接在所述透气板(1113)的长度方向上的两端，并共同围成所述容纳空间(114)，所述透气板(1113)与所述防爆阀支架(12)具有间隔距离。
  10. 根据权利要求9所述的端盖组件(10)，其中，所述主体板(111)与所述防爆阀支架(12)的间隔距离S2为0.25mm～3.45mm。
  11. 根据权利要求9或10所述的端盖组件(10)，其中，所述支架(11)还包括至少一个筋条(1115)，所述筋条(1115)位于所述通气孔(1114)并分割所述通气孔(1114)形成多个子气孔(1114A)。
  12. 根据权利要求9-11任意一项所述的端盖组件(10)，其中，所述主体板(111)还包括支撑板(1116)，所述透气板(1113)包括第一透气板(1113A)和第二透气板(1113B)，所述支撑板(1116)和所述第一透气板(1113A)在所述主体板(111)的长度方向依次连接，所述第一透气板(1113A)和第二透气板(1113B)在所述主体板(111)的宽度方向上对接，所述第二透气板(1113B)沿所述宽度方向突出于所述支撑板(1116)。
  13. 根据权利要求12所述的端盖组件(10)，其中，所述第二透气板(1113B)包括背向所述第一面(1111)的第三面(1117)，所述第一壁板(112)具有第四面(1123)，所述第三面(1117)连接所述第四面(1123)，且所述第三面(1117)和所述第四面(1123)之间具有倒角。
  14. 根据权利要求1-13任意一项所述的端盖组件(10)，其中，所述第二壁板(113)与所述第一壁板(112)相对对称面镜像对称。
  15. 根据权利要求1-14任意一项所述的端盖组件(10)，其中，所述主体板(111)上开设有第一缺口(118)，所述防爆阀支架(12)开设有第二缺口(121)，所述第一缺口(118)和所述第二缺口(121)在所述主体板(111)的厚度方向上正对。
  16. 根据权利要求1-15任意一项所述的端盖组件(10)，其中，所述支架(11)还包括侧板(116)和卡扣(119)，所述侧板(116)与所述主体板(111)的宽度方向上的一端连接，所述侧板(116)沿所述主体板(111)的厚度方向延伸，所述卡扣(119)凸设于所述侧板(116)，并容置于所述容纳空间(114)，所述卡扣(119)用于固定所述防爆阀支架(12)。
  17. 根据权利要求16所述的端盖组件(10)，其中，所述端盖组件(10)还包括绝缘构件(13)，所述绝缘构件(13)与所述支架(11)连接，所述绝缘构件(13)包括与所述防爆阀支架(12)相对的第一边板(132)，所述第一边板(132)开设有第三缺口(134)。
  18. 根据权利要求17所述的端盖组件(10)，其中，所述支架(11)包括连接在所述绝缘构件(13)的宽度方向上的两侧的第一支架(11A)和第二支架(11B)，所述第一支架(11A)和所述第二支架(11B)镜像对称，所述第一支架(11A)和所述第二支架(11B)之间具有间隔距离以形成第二气流通道(11S)，所述第三缺口(134)与所述第二气流通道(11S)相对而连通。
  19. 根据权利要求18所述的端盖组件(10)，其中，所述第一支架(11A)和所述第二支架(11B)之间的间隔距离S3为0.55mm～5.25mm。
  20. 一种储能装置(100)，其中，所述储能装置(100)包括电极组件(20)、壳体(30)以及如权利要求1-19任意一项所述的端盖组件(10)，所述电极组件(20)设置于所述壳体(30)内，所述端盖组件(10)电连接于所述电极组件(20)。
  21. 一种用电设备，其中，所述用电设备包括如权利要求20所述的储能装置(100)，所述储能装置(100)为所述用电设备供电。
PCT/CN2023/075286 2023-02-09 2023-02-09 端盖组件、储能装置和用电设备 Ceased WO2024164271A1 (zh)

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