WO2022001354A1 - 套筒组件、盖板组件、电池、用电装置及通孔的密封方法 - Google Patents

套筒组件、盖板组件、电池、用电装置及通孔的密封方法 Download PDF

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Publication number
WO2022001354A1
WO2022001354A1 PCT/CN2021/091735 CN2021091735W WO2022001354A1 WO 2022001354 A1 WO2022001354 A1 WO 2022001354A1 CN 2021091735 W CN2021091735 W CN 2021091735W WO 2022001354 A1 WO2022001354 A1 WO 2022001354A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
hole
assembly
plate body
wall
Prior art date
Application number
PCT/CN2021/091735
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English (en)
French (fr)
Inventor
陈新祥
王鹏
郑于炼
董晓龙
梁成都
李伟
Original Assignee
江苏时代新能源科技有限公司
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 江苏时代新能源科技有限公司 filed Critical 江苏时代新能源科技有限公司
Priority to EP21833451.4A priority Critical patent/EP4047726A4/en
Publication of WO2022001354A1 publication Critical patent/WO2022001354A1/zh
Priority to US17/863,650 priority patent/US20220352583A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • 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
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627—Filling ports
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • 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
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627—Filling ports
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • H01M50/645—Plugs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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 technical field of sealing devices, and in particular, to a sleeve assembly, a cover plate assembly, a battery, an electrical device and a method for sealing through holes.
  • Lithium-ion batteries have extremely high demands on the tightness of the structure. Lithium-ion batteries cannot have electrolyte extravasation during use, otherwise it will pollute the surrounding air and environment; nor can water vapor enter the battery to react with the electrolyte, which will reduce the life of the battery cells. Therefore, after filling the electrolyte solution of the secondary battery, in order to ensure the sealing performance of the battery, it is usually necessary to completely seal the through hole.
  • the sleeve assembly for sealing the through hole includes a sealing sleeve, a nail body disposed in the sealing sleeve, and a nail core disposed in the nail body.
  • the sealing sleeve needs to be inserted into the injection hole, then the nail cylinder needs to be inserted into the sealing sleeve, and the nail core needs to be inserted into the nail body.
  • Seal the sleeve so that the sleeve assembly is fixed in the through hole.
  • the assembly process of this sealing method is complicated, and the assembly efficiency is low.
  • Embodiments of the present application provide a sleeve assembly, a cover plate assembly, a battery, an electrical device, and a method for sealing through holes, which aim to simplify the structure of the sleeve assembly, facilitate the use of the sleeve assembly, and simplify the sealing of through holes.
  • the purpose of the process is to improve the sealing efficiency of the through hole.
  • an embodiment of the present application provides a sleeve assembly for sealing a through hole.
  • the sleeve assembly includes: a first end and a second end disposed opposite to each other, and the first end has an opening; a nail body includes a main body portion, The radial dimension of the body part is larger than the cylinder diameter of the sleeve. Rive the sleeve to the projection of the through hole.
  • the thickness of the sidewall of the sleeve at least partially proximate the opening is less than the thickness of the sidewall proximate the second end.
  • the inner wall of the sleeve in a direction from the opening to the second end, is inclined toward the center of the sleeve.
  • the size of the accommodating space is gradually reduced to facilitate the insertion of the body portion into the sleeve.
  • the thickness of the side wall is gradually increased, and when the body portion presses the inner wall of the sleeve, a protrusion can be formed at the second end.
  • the outer wall of the sleeve is protrudingly formed with a raised portion, and the raised portion is used to form the protrusion.
  • the side wall is deformed, and the deformation is transmitted to the raised portion, so that the raised portion can form a protrusion. Since the protuberance itself protrudes from the outer wall of the sleeve, the structural strength of the bulge can be increased, that is, the radial dimension of the bulge can be increased to ensure the relative position stability between the sleeve and the through hole.
  • the side wall of the sleeve is provided with a slit, and the slit is formed by extending from the second end toward the opening. Since the sleeve is provided with a slit, when the main body of the nail presses the inner wall of the sleeve, the size of the slit will increase, so that the side wall is everted to form a protrusion.
  • the side wall of the sleeve is provided with cracks, which can reduce the possibility of the side wall cracking when the protrusion is formed.
  • the second end is closed or open.
  • the present application also provides a cover plate assembly, comprising: a plate body having a first surface and a second surface, and a plate body through hole penetrating the first surface and the second surface; and the above-mentioned sleeve assembly,
  • the sleeve assembly is used to seal the through hole of the plate body.
  • the sleeve assembly can seal the through hole of the plate body to ensure the tightness of the through hole of the plate body.
  • the second end of the sleeve protrudes into the through hole of the plate body from the first surface, and protrudes from the through hole of the plate body from the second surface, and the protrusion is formed on the second end of the sleeve and abuts against the through hole of the plate body.
  • second surface The opening of the sleeve is located on the side where the first surface of the plate body is located, and the second end of the sleeve is located on the side where the second surface of the plate body is located.
  • the bulge is formed at the second end and abuts against the second surface, and the second surface provides a limit for the bulge, thereby preventing the sleeve from detaching from the plate body from the through hole of the plate body.
  • a groove is formed on the hole wall of the through hole of the plate body, and the protrusion is located in the groove.
  • the space occupied by the sleeve can be reduced.
  • the grooves are exposed to the second surface. It can not only reduce the space occupied by the sleeve, but also facilitate the insertion of the sleeve into the through hole of the plate body, so that the sleeve will not be hindered in the process of inserting the through hole of the plate body.
  • the sleeve further includes a side wall and a flange portion connected to the side wall, and the flange portion overlaps the first surface of the plate body, and at least part of the flange portion and the plate body are formed between gap.
  • the deformation of the flange part can reduce the size of the gap, thereby forming a negative pressure in the gap, which can prevent the stop end from being pushed up by the flange part and prevent the nail body from being pulled from the sleeve. out of the barrel.
  • At least part of the flange portion overlaps the plate body to form a sealing interface.
  • the contact area between the flange portion and the plate body can be increased, thereby increasing the area of the sealing interface and improving the sealing effect.
  • an embodiment of the present application further provides a battery, including the above-mentioned cover plate assembly.
  • the electrolyte solution can be injected into the inside of the battery through the through holes of the plate body.
  • the sleeve assembly can be sealed in the through hole of the plate body to prevent leakage of the electrolyte in the battery, which can effectively improve the safety performance of the battery.
  • the embodiments of the present application further provide an electrical device, including the above-mentioned battery.
  • an embodiment of the present application further provides a method for sealing a through hole, using the above-mentioned sleeve assembly to seal a plate body through hole of a plate body, and the method includes:
  • the nail body is extended into the sleeve from the opening of the sleeve, so that the nail body presses the inner wall of the sleeve and forms a protrusion.
  • the sealing method is simple and convenient, and the sealing efficiency can be improved.
  • the plate body has a first surface and a second surface, wherein,
  • step of inserting the sleeve into the through hole of the plate body inserting the sleeve into the through hole of the plate body from the first surface, and making the sleeve protrude from the second surface of the plate body;
  • the nail body presses the inner wall of the sleeve and forms a protrusion
  • the nail body presses the inner wall of the sleeve to form a protrusion up
  • the protrusion abuts on the second surface.
  • the opening of the sleeve is located on the side where the first surface of the plate body is located, and the second end of the sleeve is located on the side where the second surface of the plate body is located.
  • the bulge is formed at the second end and abuts against the second surface, and the second surface provides a limit for the bulge, thereby preventing the sleeve from detaching from the plate body from the through hole of the plate body.
  • the sleeve assembly is used to seal the through hole, and the sleeve assembly includes a sleeve and a nail body.
  • the size of the body portion of the nail body is larger than the size of the cylinder diameter of the sleeve, so when the body portion extends into the sleeve through the opening, the inner wall of the sleeve can be squeezed.
  • the sleeve When using the sleeve assembly of the embodiment of the present application to seal the through hole, the sleeve can be inserted into the through hole first, and then the body portion can press the inner wall of the sleeve when the sleeve is inserted through the opening, and is formed on the outer wall of the sleeve to seal the through hole.
  • the sleeve is riveted to the protrusion of the through hole.
  • the sleeve assembly of the embodiment of the present application only needs to use two components, the sleeve and the nail body, to seal the through hole, which can simplify the structure of the sleeve assembly and facilitate the use of the sleeve assembly.
  • the sleeve assembly of the embodiment of the present application when using the sleeve assembly of the embodiment of the present application to seal the through hole, the sleeve assembly can be riveted to the through hole by sequentially inserting the sleeve into the through hole and inserting the main body into the sleeve to complete the sealing of the through hole. Therefore, the sleeve assembly of the embodiment of the present application has a simple structure, is easy to use, can simplify the sealing process of the through hole, and improve the sealing efficiency of the through hole.
  • FIG. 1 is a schematic structural diagram of a sleeve assembly provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a sleeve in a sleeve assembly provided by an embodiment of the present application
  • FIG. 3 is a sectional view of a sleeve assembly in use state provided by an embodiment of the present application.
  • FIG. 4 is a top view of a sleeve in a sleeve assembly provided by an embodiment of the present application
  • Fig. 5 is the sectional view at B-B place in Fig. 4;
  • FIG. 6 is a cross-sectional view at B-B in FIG. 4 provided by another application embodiment of the present application.
  • FIG. 7 is a cross-sectional view at B-B in FIG. 4 provided by another application embodiment of the present application.
  • FIG. 8 is a cross-sectional view at B-B in FIG. 4 provided by yet another application embodiment of the present application.
  • FIG. 9 is a schematic three-dimensional structural diagram of a sleeve in a sleeve assembly provided by another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a sleeve in a sleeve assembly provided in another embodiment of the present application from another viewing angle;
  • FIG. 11 is a top view of a sleeve in a sleeve assembly provided by yet another application embodiment of the present application;
  • Figure 12 is a sectional view at D-D in Figure 11;
  • FIG. 13 is a schematic structural diagram of a nail body in a sleeve assembly provided by an embodiment of the present application.
  • FIG. 14 is a top view of a nail body in a sleeve assembly provided by an embodiment of the present application.
  • Figure 15 is a sectional view at E-E in Figure 14;
  • 16 is a schematic structural diagram of a cover plate assembly provided by an embodiment of the present application.
  • 17 is a schematic diagram of an explosion structure of a cover plate assembly provided by an embodiment of the present application.
  • FIG. 18 is a top view of a cover plate assembly provided by an embodiment of the present application.
  • Figure 19 is a sectional view at A-A in Figure 18;
  • Fig. 20 is the partial enlarged structural representation at I place in Fig. 19;
  • Fig. 21 is a partial enlarged structural schematic diagram of I in Fig. 19 provided by another application embodiment of the present application;
  • Fig. 22 is a partial enlarged structural schematic diagram of I in Fig. 19 provided by another application embodiment of the present application;
  • Fig. 23 is a partial enlarged structural schematic diagram of I in Fig. 19 provided by another application embodiment of the present application;
  • FIG. 24 is a top view of a cover plate assembly provided by another application embodiment of the present application.
  • Figure 25 is a sectional view at C-C in Figure 24;
  • 26 is a schematic structural diagram of a battery provided by an embodiment of the present application.
  • FIG. 27 is a schematic structural diagram of a battery provided by another embodiment of the present application.
  • FIG. 28 is a schematic structural diagram of a battery according to another embodiment of the present application.
  • 29 is a schematic structural diagram of an electrical device provided by an embodiment of the present application.
  • FIG. 30 is a schematic flowchart of a method for sealing a through hole provided by an embodiment of the present application.
  • FIG. 1 shows a schematic diagram of an explosion structure of a sleeve assembly 101 provided by an embodiment of the present application
  • FIG. 2 shows a schematic structural diagram of a sleeve 200 provided by an embodiment of the present application
  • FIG. 3 shows a cross-sectional view of a sleeve assembly 101 provided in an embodiment of the present application in a use state.
  • the sleeve assembly 101 is provided.
  • the sleeve assembly 101 is used to seal the through hole 102.
  • the sleeve assembly 101 includes: a sleeve 200, including a first end 200a and a second end 200b disposed opposite to each other.
  • the end 200a has an opening 210;
  • the nail body 300 includes a main body portion 310, the radial dimension of the main body portion 310 is larger than the cylinder diameter of the sleeve 200, and the main body portion 310 is used to enable the sleeve 200 to be inserted into the through hole 102 in the axial direction.
  • the sleeve 200 is inserted through the opening 210 and the inner wall of the sleeve 200 is pressed to form a protrusion 230 on the outer wall of the sleeve 200 for riveting the sleeve 200 to the through hole.
  • the sleeve 200 passes through the through hole 102 and protrudes out of the through hole 102 by a predetermined length.
  • the body portion 310 When the body portion 310 is inserted into the sleeve 200 , it will squeeze the inner wall of the sleeve 200 , and the side wall 220 of the sleeve 200 is deformed under the compression of the nail body 300 and the inner wall of the through hole 102 .
  • a protrusion 230 can be formed on the outer wall of the sleeve 200 , so that the sleeve 200 is riveted to the plate body 100 where the through hole 102 is located through the protrusion 230 .
  • the sleeve assembly 101 is used to seal the through hole 102 , and the sleeve assembly 101 includes a sleeve 200 and a nail body 300 .
  • the size of the body portion 310 of the nail body 300 is larger than the size of the cylinder diameter of the sleeve 200 , so when the body portion 310 extends into the sleeve 200 through the opening 210 , the inner wall of the sleeve 200 can be squeezed.
  • the sleeve 200 can be inserted into the through hole 102 first, and then the body portion 310 can press the inner wall of the sleeve 200 when the sleeve 200 is inserted through the opening 210 , and A protrusion 230 for riveting the sleeve 200 to the through hole 102 is formed on the outer wall of the sleeve 200 .
  • the sleeve assembly 101 of the embodiment of the present application only needs to use the sleeve 200 and the nail body 300 to seal the through hole, which can simplify the structure of the sleeve assembly 101 and facilitate the use of the sleeve assembly 101 .
  • the sleeve assembly 101 of the embodiment of the present application when using the sleeve assembly 101 of the embodiment of the present application to seal the through hole 102, the sleeve 200 is sequentially inserted into the through hole 102, and the body portion 310 is inserted into the sleeve 200, so that the sleeve assembly 101 can be riveted to the through hole 102.
  • the sealing of the through hole 102 is completed. Therefore, the sleeve assembly 101 of the embodiment of the present application is simple in structure and convenient to use, and can simplify the sealing process of the through hole 102 and improve the sealing efficiency of the through hole 102 .
  • the diameter of the body portion 310 is the same as the inner diameter of the sleeve 200 .
  • the body portion 310 is cylindrical, that is, the body portion 310 is provided with an equal cross-section in the axial direction and is provided with the same diameter as the inner diameter of the sleeve 200 .
  • the nail body 300 can be inserted into the sleeve 200 with less force, which facilitates the assembly of the sleeve assembly 101 .
  • the main body portion 310 needs to be pulled out, since the main body portion 310 is cylindrical, the nail body 300 can be pulled out of the sleeve 200 with a small force.
  • the embodiments of the present application can simplify the sealing process of the through holes 102 and improve the sealing efficiency of the through holes 102 .
  • debris is not easily generated during the sealing process, and the safety performance of the sealing is improved.
  • the formation of the protrusions 230 can firmly fix the sleeve assembly 101 to the through hole 102 , and reduce the separation of the sleeve assembly 101 from the through hole 102 during vibration.
  • the second end 200b of the sleeve 200 is closed, and the body portion 310 can abut against the bottom wall of the sleeve 200 .
  • the closed second end 200b of the sleeve 200 can also improve the sealing performance of the sleeve assembly 101 and prevent gas or liquid from flowing through the inside of the sleeve 200 .
  • the bottom wall of the sleeve 200 refers to the surface of the bottom of the sleeve 200 facing the accommodating space 240 .
  • the sleeve 200 is elastic.
  • the sleeve 200 can be made of a rubber material, so that the sleeve 200 has elasticity, and the nail body 300 is easily deformed by pressing the sleeve 200 to form the protrusion 230 .
  • the sleeve 200 can also be selected from other elastic materials, as long as the nail body 300 can form the protrusion 230 when pressing the inner wall of the sleeve 200 .
  • FIG. 4 shows a top view of the sleeve 200 in FIG. 2
  • FIG. 5 is a cross-sectional view at B-B in FIG. 4
  • the sleeve 200 is cylindrical and has a side wall 220 .
  • the side wall 220 encloses the accommodating space 240
  • the opening 210 of the sleeve 200 communicates with the accommodating space 240 , so that the body portion 310 can extend into the accommodating space 240 from the opening 210 .
  • the inner wall of the sleeve 200 refers to the inner surface of the side wall 220 of the sleeve 200 facing the accommodating space 240 .
  • the outer wall of the sleeve 200 refers to the outer surface of the side wall 220 of the sleeve 200 facing away from the accommodating space 240 .
  • the side walls 220 of the sleeve 200 are provided with equal cross-sections, that is, in the axial direction, the cross-sectional areas of the side walls 220 at different positions are the same, and the thickness of the side walls 220 of the sleeve 200 is the same. Consistent. Wherein, the uniform thickness of the sidewalls 220 of the sleeve 200 means that the sidewalls 220 are uniform within an error range, and are not uniform in a strict sense.
  • the sleeve 200 penetrates through the through hole 102 and extends out of the through hole 102.
  • the body portion 310 squeezes the sleeve when it extends into the accommodating space 240 from the opening 210.
  • a protrusion 230 is formed on the part of the sleeve 200 protruding from the through hole 102 , and the sleeve 200 is riveted to the plate body 100 where the through hole 102 is located through the protrusion 230 .
  • FIG. 6 is a schematic structural diagram of the sleeve 201 in another embodiment.
  • the sleeve 201 is cylindrical and has a side wall 220a.
  • the side wall 220a encloses a accommodating space 240a, and the opening 210a of the sleeve 201 communicates with the accommodating space 240a.
  • the thickness of the sidewall 220a of the sleeve 201 at least partially near the opening 210a is less than the thickness of the sidewall 220a of the second end 200b.
  • the side wall 220 a of the sleeve 201 is provided in a variable-section manner, and the side wall 220 a of the second end 200 b of the sleeve 201 is thicker.
  • the deformation amount of the side wall 220a of the second end 200b is relatively large, and it is easier to form the protrusion 230 on the side wall 220a of the second end 200b, and the size of the protrusion 230 is relatively large. Large, to ensure that the sleeve 201 can be riveted to the through hole 102 stably.
  • the thickness of the side wall 220a of the sleeve 201 gradually increases.
  • the inner wall of the sleeve 201 is inclined toward the center of the sleeve 201 .
  • the inner wall of the sleeve 201 is inclined, and the size of the accommodating space 240 a is gradually reduced to facilitate the insertion of the body portion 310 into the sleeve 201 .
  • the thickness of the side wall 220a is gradually increased, and when the body portion 310 presses the inner wall of the sleeve 201, a protrusion 230 can be formed on the second end 200b.
  • the outer wall of the sleeve 201 is a straight wall, so that the sleeve 201 can be inserted into the through hole 102 .
  • the inner wall of the sleeve 201 may also be a stepped structure (not shown in the figure), so that the size of the accommodating space 240a is large in size and small in size.
  • the body part 310 presses the stepped structure of the inner wall of the sleeve 201 , and a protrusion 230 is formed on the outer wall of the sleeve 201 .
  • the sleeve 202 is cylindrical and has a side wall 220b, the side wall 220b encloses an accommodating space 240b, and the opening 210b of the sleeve 202 communicates with the accommodating space 240b.
  • the outer wall of the side wall 220b is inclined toward the center of the sleeve 202.
  • the sleeve 203 is cylindrical and has a side wall 220c, the side wall 220c encloses a accommodating space 240c, and the opening 210c of the sleeve 203 communicates with the accommodating space 240c.
  • the outer wall of the side wall 220c is protruded and formed with a raised portion 221 .
  • the structural strength of the protrusion 230 can be increased, that is, the radial dimension of the protrusion 230 can be increased, and the relative position stability between the sleeve 203 and the through hole 102 can be ensured .
  • FIG. 9 is a schematic structural diagram of a sleeve 204 provided by another embodiment of the present application
  • FIG. 10 is a three-dimensional view of the sleeve 204 from another viewing angle.
  • the sleeve 204 has a side wall 220d and an opening 210d.
  • a slit 260 is opened on the side wall 220d.
  • the slit 260 is formed by extending from the second end 200b of the sleeve 204 toward the opening 210d.
  • the sleeve 204 is provided with the slit 260 , when the body portion 310 of the nail body 300 presses the inner wall of the sleeve 204 , the size of the slit 260 will increase so that the side wall 220d is everted to form the protrusion 230 .
  • the side wall 220d of the sleeve 204 is provided with a crack 260, which can reduce the possibility of the side wall 220d being burst and cracked when the protrusion 230 is formed.
  • FIG. 11 is a top view of the sleeve 204 shown in FIG. 9
  • FIG. 12 is a cross-sectional view at D-D in FIG. 11
  • the sleeve 204 has an accommodation space 240d.
  • the slit 260 communicates with the accommodating space 240d, that is, the slit 260 penetrates through the side wall 220d of the sleeve 204, so that the sleeve 204 is easily deformed when squeezed.
  • the number of the slits 260 is multiple, and the multiple slits 260 are spaced apart along the circumference of the sleeve 204 .
  • the plurality of cracks 260 are evenly distributed along the axial direction of the sleeve 204 , so that the force and deformation of the sleeve 204 are more uniform.
  • the upper second end 200b of the sleeve 204 may be in an open shape, that is, both ends of the sleeve 204 are open.
  • the side wall 220d of the sleeve 204 is provided with a slit 260
  • the second end 200b of the sleeve 204 opposite to the opening 210d is in the shape of an opening, and the slit 260 extends from the second end 200b to the opening 210d.
  • the protrusions 230 formed by the deformation of the sleeve 204 are larger in size, which can improve the riveting stability of the sleeve 204 .
  • the body portion 310 can be disposed through the sleeve 204 , so that the sleeve 204 can be deformed more fully, and the protrusions 230 formed by the deformation of the sleeve 204 are larger in size to ensure the stability of the riveting of the sleeve 204 .
  • the nail body 300 can be made of rigid material, and the material of the nail body 300 includes, for example, rigid plastic, steel, aluminum, and the like.
  • the structure of the nail body 300 is relatively rigid, and the nail body 300 is not easily deformed when the nail body 300 presses the inner wall of the sleeve 200 .
  • the sleeve 200 includes a flange portion 250 connected to the side wall 220 .
  • FIG. 13 to FIG. 15 are schematic diagrams of the structure of the nail body 300 .
  • the nail body 300 further includes a stop end 320 connected to one end of the body portion 310 , and the stop end 320 is used for pressing the flange portion 250 when the body portion 310 is inserted into the sleeve 200 .
  • FIG. 16 shows a schematic structural diagram of a cover plate assembly provided by an embodiment of the present application
  • FIG. 17 is a schematic diagram of an exploded structure of FIG. 16
  • the cover plate assembly 10a provided according to another aspect of the application includes: a plate body 100 having a first surface 120 and a second surface 130 , and a plate body through hole 110 penetrating the first surface 120 and the second surface 130 and the above-mentioned sleeve assembly 101, the sleeve assembly 101 is used to seal the through hole 110 of the plate body.
  • Sleeve assembly 101 includes sleeve 200 and staple body 300 .
  • the sleeve assembly 101 can seal the through hole 110 of the plate body to ensure the tightness of the through hole 110 of the plate body.
  • FIG. 18 is a top view of the cover plate assembly in FIG. 16
  • FIG. 19 is a cross-sectional view at A-A in FIG. 18
  • FIG. 10 the other end of the sleeve 200 opposite to the opening 210 extends into the through hole 110 of the plate body from the first surface 120 , and extends out of the through hole 110 of the plate body from the second surface 130
  • the protrusion 230 is formed on the sleeve
  • the second end 200b of the barrel 200 abuts against the second surface 130 .
  • the opening 210 of the sleeve 200 is located on the side where the first surface 120 of the plate body 100 is located, and the second end 200b of the sleeve 200 is located on the side where the second surface 130 of the plate body 100 is located.
  • the protrusion 230 is formed on the second end 200b and abuts against the second surface 130 .
  • the second surface 130 provides a limit for the protrusion 230 to prevent the sleeve 200 from detaching from the board body 100 from the board body through hole 110 .
  • the cover plate assembly 11a includes a plate body 100a and a through hole 110a penetrating the plate body 100a.
  • a raised portion 221 is formed on the outer wall of the sleeve 203
  • a groove 112a is formed on the hole wall 111a of the through hole 110a of the plate body
  • the raised portion 221 is located in the groove 112a to form a protrusion 230 for riveting the sleeve 203 to the plate body 100a .
  • the protrusion 230 is formed in the groove 112a on the hole wall 111a, which can reduce the space occupied by the sleeve 203 .
  • the location of the groove 112a is not limited, and the groove 112a may be located between the first surface 120a and the second surface 130a.
  • the plate body 100b has a first surface 120b, a second surface 130b and a plate body through hole 110b disposed therethrough, and a groove 112b is formed on the hole wall 111b of the plate body through hole 110b.
  • the groove 112b is exposed on the second surface 130b, which can not only reduce the space occupied by the sleeve 200, but also facilitate the insertion of the sleeve 200 into the through hole 110b of the plate body, so that the sleeve 200 will not be inserted into the through hole 110b of the plate body. hindered.
  • the board body 100c has a board body through hole 110c.
  • the diameter of the through hole 110c of the plate body gradually decreases.
  • the second end 200b of the sleeve 200 corresponds to the position with the smaller diameter of the through hole 110c of the plate body, so the second end 200b of the sleeve 200 has a smaller diameter.
  • the larger the amount of deformation the protrusion 230 can be formed and the sleeve 200 can be riveted in the through hole 110c of the plate body stably.
  • the number of protrusions 230 is not limited, and there may be only one protrusion 230 .
  • the hole wall 111b is provided with a groove 112b
  • the sleeve 200 is located in the through hole 110b of the plate body
  • a protrusion 230 is formed in the groove 112b (for example, refer to the protrusion 230 formed by the bulge 221 in FIG. 8 ) .
  • two protrusions 230 are formed when the sleeve 200 and the plate body 100 cooperate with each other, and the sleeve 200 penetrates through the through hole 110 of the plate body and protrudes from the second surface 130 to form a connection with the second surface 130 abuts the first protrusion 230; and a groove 112b is formed on the hole wall 111b of the through hole 110 of the plate body, and a second protrusion 230 is formed in the groove 112b (for example, see the bulge 221 in FIG. 8 ). formed protrusions 230).
  • FIG. 24 and FIG. 25 when the side wall 220d of the sleeve 204 is provided with a slit 260 (see FIGS. 9 and 10 ), and the sleeve 204 is used to seal the plate through hole 110 on the plate body 100 ,
  • the sleeve 204 enters the plate through hole 110 from the first surface 120, and the sleeve 204 protrudes from the second surface 130.
  • the crack 260 is located on the lower side of the second surface 130 as shown in FIG. 25, which can prevent the crack 260 from affecting the sleeve 200. sealing performance.
  • the sleeve 200 further includes a side wall 220 and a flange portion 250 connected to the side wall 220 . At least part of the flange portion 250 overlaps the first surface 120 of the plate body 100 , and a gap 251 exists between the flange portion 250 and the plate body 100 .
  • a gap 251 exists between at least a part of the flange portion 250 and the plate body 100 .
  • the deformation of the flange portion 250 can reduce the size of the gap 251 .
  • a negative pressure is formed in the gap 251 , which can prevent the stop end 320 from being pushed up by the flange portion 250 and prevent the nail body 300 from being detached from the sleeve 200 .
  • At least part of the flange portion 250 is overlapped on the plate body 100 to form a sealing interface.
  • the stop end 320 presses the flange portion 250 the contact area between the flange portion 250 and the plate body 100 can be increased, and the area of the sealing interface can be increased. , improve the sealing effect.
  • the shape of the flange portion 250 can be set in various ways, and the longitudinal section of the flange portion 250 may be stepped.
  • the flange portion 250 is in the shape of an umbrella, and the longitudinal section of the flange portion 250 is in the shape of an arc and protrudes in a direction away from the plate body 100 .
  • the flange portion 250 is in the shape of an umbrella, and when the nail body 300 applies a pressing force to the flange portion 250 , the flange portion 250 is more easily deformed.
  • an embodiment of the present application further provides a battery, and the battery includes the above-mentioned cover plate assembly 10a.
  • the battery may be any of a battery pack, a battery module, or a battery cell.
  • the battery is a battery pack
  • the battery pack 1 includes a case 12 and a battery module 11 or a battery cell 10 disposed in the case 12 .
  • the case 12 includes a first case 12a and a second case 12b.
  • the first box body 12a and the second box body 12b are fastened together, so that a closed space is formed inside the box body 12 to accommodate the battery modules 11 and the like.
  • the closure here refers to covering or closing, which can be sealed or unsealed.
  • the battery module 11 accommodated in the box 12 includes a plurality of battery cells 10, and the number of the battery module 11 is not limited to one, but can be two or more.
  • a plurality of battery modules 11 are accommodated in the box body 12 , and different battery modules 11 are electrically connected through connectors to realize series-parallel connection between the battery modules 11 .
  • the battery cell 10 is directly placed in the box 12 of the battery pack 1 , and the number of the battery cell 10 is not limited to one, but may be two or more.
  • a plurality of battery cells 10 are accommodated in the box 12 , and different battery cells 10 are electrically connected through a bus bar to realize series-parallel connection between the battery cells 10 .
  • the battery pack 1 may be an energy storage device such as an energy storage cabinet (not shown in the figure), and a door may be provided on the box body 12 in this case.
  • the battery is the battery module 11 .
  • the battery module 11 includes a frame 20 and battery cells 10 located on the frame 20 .
  • the frame 20 is formed by enclosing side plates 21 connected end to end, and the battery cells 10 are accommodated in the frame 20 .
  • the battery is a battery cell 10 .
  • the battery cell 10 includes a casing 10b, an electrode assembly 10c located in the casing 10b, and a cover plate assembly 10a covering the opening of the casing 10b.
  • the electrode assembly 10c can be formed by winding or stacking the first pole piece (not shown in the figure), the separator (not shown in the figure) and the second pole piece (not shown in the figure), wherein the first pole piece (not shown in the figure)
  • the pole piece and the second pole piece have opposite polarities, and the diaphragm is an insulator between the first pole piece and the second pole piece.
  • the cover plate assembly 10a when the cover plate assembly 10a is used for a battery cell, the cover plate assembly 10a further includes a first electrode terminal 10d and a second electrode terminal 10e, and the first electrode terminal 10d and the second electrode terminal 10e have opposite polarities And used to draw out electrical energy.
  • the through hole 110 of the plate body can be used as a liquid injection hole (not shown in the figure), so that the electrolyte solution can be injected into the battery through the through hole 110 of the plate body.
  • the sleeve assembly 101 can be sealed in the through hole 110 of the plate body to prevent leakage of the electrolyte in the battery, which can effectively improve the safety performance of the battery.
  • the sleeve assembly 101 of the embodiment of the present application When using the sleeve assembly 101 of the embodiment of the present application to seal the through hole 110 of the plate body, that is, when using the sleeve assembly 101 of the embodiment of the present application to seal the liquid injection hole of the battery, it is only necessary to sequentially insert the sleeve 200 into the liquid injection hole Then, insert the nail body 300 into the sleeve 200 to form the protrusion 230, and then the sleeve assembly 101 can be riveted and sealed in the liquid injection hole.
  • the sealing process of the liquid injection hole can be simplified, the sealing efficiency of the liquid injection hole can be improved, and the assembly efficiency of the battery can be improved.
  • the nail body 300 can be directly pulled out from the sleeve 200 to facilitate exhausting the battery.
  • the nail body 300 can also be pulled out from the sleeve 200, and the sleeve 200 can be pulled out from the injection hole, and the nail body 300 can be pulled out through the injection hole. Perform a second injection. After the liquid injection is completed, the sleeve assembly 101 can be assembled into the liquid injection hole again in sequence to complete the sealing of the liquid injection hole.
  • the cover plate assembly 10 a further includes a sealant 400 , and the sealant 400 covers the nail body 300 and is used for bonding the nail body 300 and the sleeve 200 to the plate body 100 .
  • the sealing compound 400 can not only ensure the relative stability between the sleeve assembly 101 and the plate body 100 , but also can provide the function of secondary sealing.
  • the encapsulant 400 may employ a dissolvable material. When the secondary injection of the battery cell 10 is required, the sealing colloid 400 is dissolved, and the sleeve assembly 101 is disassembled from the through hole 110 of the plate body, so that the secondary injection of the battery cell 10 can be performed through the through hole 110 of the plate body. liquid.
  • the sleeve assembly 101 can be installed in the through hole 110 of the plate body, and then the sealing compound 400 is arranged on the nail body 300, and the sleeve assembly 101 is fixed on the nail body 300 through the sealing compound 400. on the plate body 100 .
  • the stability of the relative position between the sleeve assembly 101 and the plate body 100 can be improved, and the sleeve assembly 101 can be prevented from loosening during the use of the battery cell 10 .
  • cover plate assembly 10a can not only be used to cover the casing 10b of the battery cell 10, but also can be used as a cover for other devices, as long as the other devices have the same size as the cover plate assembly 10a. A suitable opening is sufficient.
  • FIG. 29 shows a schematic structural diagram of an electrical device provided by an embodiment of the present application.
  • the electrical device includes the above-mentioned battery.
  • the battery is, for example, provided on the device body of the electrical device for providing electrical energy.
  • the electrical device is a mobile device such as a vehicle, a ship, a small aircraft, etc., which includes a power source, the power source includes a battery, and the electrical energy provided by the battery provides a driving force for the electrical device.
  • the driving force of the electrical device is all electrical energy, and the power source only includes a battery in this case.
  • the driving force of the electrical device includes electrical energy and other energy sources (such as mechanical energy), and in this case, the power source includes other power equipment such as batteries and engines.
  • the electrical device is a new energy vehicle, which can be a pure electric vehicle, a hybrid electric vehicle, an extended-range vehicle, an electric tricycle, or a two-wheeled electric vehicle.
  • the vehicle includes a vehicle body 2 and a battery pack 1 .
  • an embodiment of the present application further provides a method for sealing a through hole.
  • the above-mentioned sleeve assembly 101 is used to seal the through hole 110 of the plate body 100 .
  • the method includes:
  • Step S1 inserting the sleeve 200 into the through hole 110 of the plate body 100 .
  • Step S2 extending the nail body 300 into the sleeve 200 from the opening 210 of the sleeve 200 , so that the nail body 300 presses the inner wall of the sleeve 200 and forms the protrusion 230 .
  • step S1 the sleeve 200 is inserted into the through hole 110 of the plate body, and the sleeve 200 is protruded from the second surface 130 of the plate body 100 .
  • step S2 when the nail body 300 is inserted into the sleeve 200 , the nail body 300 presses the inner wall of the sleeve 200 to form protrusions 230 , and the protrusions 230 abut against the second surface 130 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

本申请实施例提供一种套筒组件、盖板组件、电池及用电装置，套筒组件用于密封通孔，套筒组件包括：套筒，至少一端具有开口；钉体，包括本体部，本体部尺寸大于套筒的筒径尺寸，本体部用于在套筒沿轴向插入通孔后，能由开口插入套筒并挤压套筒内壁，以在套筒外壁形成用于将套筒铆接于通孔的凸起。在使用本申请实施例的套筒组件密封通孔时，只需依次将套筒插入通孔，本体部插入套筒即可将套筒组件铆接于通孔，完成通孔的密封。能够简化通孔的密封工序，提高通孔的密封效率。且在密封过程中不易产生碎屑，提高密封的安全性能。

Description

套筒组件、盖板组件、电池、用电装置及通孔的密封方法
相关申请的交叉引用
本申请要求享有于2020年06月29日提交的名称为“套筒组件、盖板组件、电池及用电装置”的中国专利申请202010604256.9的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及密封装置技术领域，尤其涉及一种套筒组件、盖板组件、电池、用电装置及通孔的密封方法。
背景技术
锂离子电池对结构的封闭性要求极高。锂离子电池在使用过程中不能有电解液外渗，否则会污染周围空气和环境；也不能有水汽进入电池内部与电解液反应，这样会降低电芯寿命。因此，完成二次电池的电解液灌注后，为保证电池的密封性，通常需要对通孔进行完全封闭操作。
在公开文件中国专利CN106450070B中，对通孔进行密封的套筒组件包括密封套、设置于密封套内的钉体和设置于钉体内的钉芯。在密封过程中，首先需要将密封套插入注液孔内，再将钉筒插入位于密封套内，还需要将钉芯插入钉体内，最后拉拔钉芯并将部分钉芯折断于钉体和密封套内以使套筒组件固定在通孔内。这种密封方式组装工艺复杂，组装效率低下。
发明内容
本申请实施例提供一种套筒组件、盖板组件、电池、用电装置及通孔的密封方法，旨在简化套筒组件的结构，便于套筒组件的使用，并达到简化通孔的密封工序，提高通孔的密封效率的目的。
本申请实施例一方面提供了一种套筒组件，用于密封通孔，套筒组件包括：包括相对设置的第一端和第二端，第一端具有开口；钉体，包括本体部，本体部的径向尺寸大于套筒的筒径尺寸，本体部用于在套筒沿轴向插入通孔后，能由开口插入套筒并挤压套筒内壁，以在套筒外壁形成用于将套筒铆接于通孔的凸起。
根据本申请的一个方面，至少部分靠近开口的套筒的侧壁厚度小于靠近第二端 的侧壁厚度。在钉体挤压套筒内壁时，第二端的侧壁的变形量较大，在第二端的侧壁上更加容易形成凸起，且凸起的尺寸较大，保证套筒能够稳定地铆接于通孔。
根据本申请的一个方面，在开口至第二端的方向上，套筒的内壁朝向套筒中心倾斜。容纳空间的尺寸逐渐减小便于本体部插入套筒内。侧壁的厚度逐渐增大，当本体部挤压套筒内壁时，能够在第二端形成凸起。
根据本申请的一个方面，套筒的外壁凸出形成有隆起部，隆起部用于形成凸起。当本体部挤压套筒内壁时，侧壁变形，变形传递至隆起部，使得隆起部能够形成凸起。由于隆起部本身就凸出于套筒的外壁设置，能够增加凸起的结构强度，即增加凸起的径向尺寸，保证套筒和通孔之间相对位置的稳定性。
根据本申请的一个方面，套筒的侧壁开设有裂缝，裂缝由第二端朝向开口延伸成型。由于套筒上设置有裂缝，当钉体的本体部挤压套筒内壁时，裂缝的尺寸会增大使得侧壁外翻形成凸起。套筒的侧壁开设有裂缝，可以减小侧壁在形成凸起时发生涨裂的可能性。
根据本申请的一个方面，第二端为闭合状或开口状。
另一方面，本申请还提供一种盖板组件，包括：板体，具有第一表面和第二表面、以及贯穿第一表面和第二表面的板体通孔；和上述的套筒组件，套筒组件用于密封板体通孔。套筒组件能够密封板体通孔，保证板体通孔的密封性。
根据本申请的一个方面，套筒的第二端由第一表面伸入板体通孔，并由第二表面伸出板体通孔，凸起形成于套筒的第二端，且抵住第二表面。套筒的开口位于板体的第一表面所在侧，套筒的第二端位于板体的第二表面所在侧。凸起形成于第二端，且抵住第二表面，第二表面向凸起提供限位，进而避免套筒由板体通孔处脱离板体。
根据本申请的一个方面，板体通孔的孔壁上形成有凹槽，凸起位于凹槽内。能够减小套筒占据的空间。
根据本申请的一个方面，凹槽暴露于第二表面。不仅能够减小套筒占据的空间，还便于套筒插入板体通孔内，使套筒在插入板体通孔的过程中不会受到阻碍。
根据本申请的一个方面，套筒还包括侧壁及连接于侧壁的凸缘部，且凸缘部搭接于板体的第一表面上，且至少部分凸缘部和板体之间形成间隙。当钉体的止挡端挤压凸缘部时，凸缘部变形能够减小间隙的尺寸，进而在间隙内形成负压，能够避免止挡端被凸缘部顶起，防止钉体从套筒内脱离。至少部分凸缘部搭接于板体上能够形成密封界面，当止挡端挤压凸缘部时，能够增加凸缘部和板体的接触面积，进而增加密封界面的面积，提高密封效果。
又一方面，本申请实施例还提供一种电池，包括上述的盖板组件。使得通过板体通孔能够向电池内部注入电解液。注液完毕时，套筒组件可以密封于板体通孔内，防止电池内的电解液泄漏，能够有效提高电池的安全性能。
再一方面，本申请实施例还提供一种用电装置，包括上述的电池。
还一方面，本申请实施例还提供一种通孔的密封方法，使用上述的套筒组件对板体的板体通孔进行密封，方法包括：
将套筒插入板体的板体通孔内；
将钉体由套筒的开口处伸入套筒内，使得钉体挤压套筒内壁并形成凸起。
密封方法简单方便，能够提高密封效率。
根据本申请的一个方面，板体具有第一表面和第二表面，其中，
在将套筒插入板体的板体通孔内的步骤中：将套筒由第一表面插入板体通孔内，并使得套筒由板体的第二表面伸出；
在将钉体由套筒的开口处伸入套筒内，使得钉体挤压套筒内壁并形成凸起的步骤中：将钉体插入套筒内时，钉体挤压套筒内壁形成凸起，凸起抵接于第二表面。套筒的开口位于板体的第一表面所在侧，套筒的第二端位于板体的第二表面所在侧。凸起形成于第二端，且抵住第二表面，第二表面向凸起提供限位，进而避免套筒由板体通孔处脱离板体。
在本申请实施例的套筒组件中，套筒组件用于密封通孔，套筒组件包括套筒和钉体。钉体的本体部尺寸大于套筒的筒径尺寸，因此当本体部由开口伸入套筒内时能够挤压套筒内壁。在使用本申请实施例的套筒组件密封通孔时，可以首先将套筒插入通孔，然后本体部在由开口插入套筒时能够挤压套筒内壁，并在套筒外壁形成用于将套筒铆接于通孔的凸起。本申请实施例的套筒组件只需要使用套筒和钉体两个部件即可密封通孔，能够简化套筒组件的结构并便于套筒组件的使用。此外在使用本申请实施例的套筒组件密封通孔时，只需依次将套筒插入通孔，本体部插入套筒即可将套筒组件铆接于通孔，就能够完成通孔的密封。因此本申请实施例的套筒组件结构简单，便于使用，并能够简化通孔的密封工序，提高通孔的密封效率。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述仅是本申请一些实施例，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附图获得其他的附图。
图1是本申请实施例提供的一种套筒组件的结构示意图；
图2是本申请实施例提供的一种套筒组件中套筒的结构示意图；
图3是本申请实施例提供的一种套筒组件使用状态剖视图；
图4是本申请实施例提供的一种套筒组件中套筒的俯视图；
图5是图4中B-B处的剖视图；
图6是本申请另一申请实施例提供的图4中B-B处的剖视图；
图7是本申请又一申请实施例提供的图4中B-B处的剖视图；
图8是本申请再一申请实施例提供的图4中B-B处的剖视图；
图9是本申请还一申请实施例提供的一种套筒组件中套筒的立体结构示意图；
图10是本申请还一申请实施例提供的一种套筒组件中套筒在另一视角方向下的结构示意图；
图11是本申请还一申请实施例提供的一种套筒组件中套筒的俯视图；
图12是图11中D-D处的剖视图；
图13是本申请申请实施例提供的一种套筒组件中钉体的结构示意图；
图14是本申请申请实施例提供的一种套筒组件中钉体的俯视图；
图15是图14中E-E处的剖视图；
图16是本申请申请实施例提供的一种盖板组件的结构示意图；
图17是本申请申请实施例提供的一种盖板组件的爆炸结构示意图；
图18是本申请申请实施例提供的一种盖板组件的俯视图；
图19是图18中A-A处的剖视图；
图20是图19中I处的局部放大结构示意图；
图21是本申请又一申请实施例提供的图19中I处的局部放大结构示意图；
图22是本申请另一申请实施例提供的图19中I处的局部放大结构示意图；
图23是本申请再一申请实施例提供的图19中I处的局部放大结构示意图；
图24是本申请还一申请实施例提供的盖板组件的俯视图；
图25是图24中C-C处的剖视图；
图26是本申请实施例提供的一种电池的结构示意图；
图27是本申请另一实施例提供的一种电池的结构示意图；
图28是本申请又一实施例提供的一种电池的结构示意图；
图29是本申请实施例提供的一种用电装置的结构示意图；
图30是本申请实施例提供的一种通孔的密封方法的流程示意图。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。在附图和下面的描述中，至少部分的公知结构和技术没有被示出，以便避免对本申请造成不必要的模糊；并且，为了清晰，可能夸大了部分结构的尺寸。此外，下文中所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示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元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。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的实施例的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以间接相连。对于本领域的普通技术人员而言，可视具体情况理 解上述术语在本申请中的具体含义。
为了更好地理解本申请，下面结合图1至图29对本申请的套筒组件、盖板组件、电池、用电装置及通孔的密封方法进行详细描述。
请参阅图1至图3，图1示出了本申请实施例提供的一种套筒组件101的爆炸结构示意图，图2示出了本申请实施例提供的一种套筒200的结构示意图，图3示出了本申请实施例提供的一种套筒组件101的使用状态剖视图。
根据申请实施例一方面提供的套筒组件101，套筒组件101用于密封通孔102，套筒组件101包括：套筒200，包括相对设置的第一端200a和第二端200b，第一端200a具有开口210；钉体300，包括本体部310，本体部310的径向尺寸大于套筒200的筒径尺寸，本体部310用于在套筒200沿轴向插入通孔102后，能由开口210插入套筒200并挤压套筒200内壁，以在套筒200外壁形成用于将套筒200铆接于通孔的凸起230。
当套筒200穿过通孔102并伸出通孔102预设长度。本体部310插入套筒200内时，会挤压套筒200内壁，套筒200的侧壁220在钉体300和通孔102内壁的挤压下发生变形。由于套筒200上伸出通孔102的部分对应有变形空间，因此能够在套筒200外壁形成凸起230，使得套筒200通过凸起230铆接于通孔102所在的板体100。
在本申请实施例的套筒组件中，套筒组件101用于密封通孔102，套筒组件101包括套筒200和钉体300。钉体300的本体部310尺寸大于套筒200的筒径尺寸，因此当本体部310由开口210伸入套筒200内时能够挤压套筒200内壁。在使用本申请实施例的套筒组件101密封通孔102时，可以首先将套筒200插入通孔102，然后本体部310在由开口210插入套筒200时能够挤压套筒200内壁，并在套筒200外壁形成用于将套筒200铆接于通孔102的凸起230。本申请实施例的套筒组件101只需要使用套筒200和钉体300两个部件即可密封通孔，能够简化套筒组件101的结构并便于套筒组件101的使用。此外在使用本申请实施例的套筒组件101密封通孔102时，依次将套筒200插入通孔102，本体部310插入套筒200即可将套筒组件101铆接于通孔102，就能够完成通孔102的密 封。因此本申请实施例的套筒组件101结构简单，便于使用，并能够简化通孔102的密封工序，提高通孔102的密封效率。
在一些实施例中，在本体部310与套筒200装配后，本体部310的直径与套筒200的内径相同。例如，本体部310呈圆柱状，即本体部310在轴向上等截面设置并与套筒200内径等径设置。这样，使用较小的力就能够将钉体300插入套筒200内，便于套筒组件101的装配。在需要将本体部310拔出时，由于本体部310呈圆柱状，使用较小的力就能够将钉体300拔出套筒200。
一方面，本申请实施例能够简化通孔102的密封工序，提高通孔102的密封效率。另一方面，本申请实施例在密封过程中不易产生碎屑，提高密封的安全性能。再一方面，凸起230的形成可以使套筒组件101牢固的固定于通孔102，减小振动时套筒组件101脱离通孔102。
在一些实施例中，套筒200的第二端200b呈闭合状，本体部310能够抵接于套筒200的底壁。套筒200的第二端200b呈闭合状还能够提高套筒组件101的密封性能，防止气体或者液体流经套筒200内部。套筒200底壁是指套筒200底部朝向容纳空间240的表面。
套筒200的材料有多种，在一些实施例中，套筒200具有弹性。在一些实施例中，套筒200可以选用橡胶材料，使得套筒200具有弹性，钉体300挤压套筒200容易发生变形并形成凸起230。套筒200还可以选用其他弹性材料，只要钉体300挤压套筒200内壁时能够形成凸起230即可。
[请一并参阅图4和图5，图4示出了图2中套筒200的俯视图，图5是图4中B-B处的剖视图。套筒200呈筒状，具有侧壁220。侧壁220围合形成容纳空间240，套筒200的开口210和容纳空间240连通，使得本体部310能够由开口210处伸入容纳空间240内。
套筒200的内壁是指套筒200的侧壁220朝向容纳空间240的内表面。套筒200的外壁是指套筒200的侧壁220上背离容纳空间240的外表面。
如图5所示，沿套筒200的轴向，套筒200的侧壁220等截面设 置，即在轴向上，不同位置侧壁220的横截面面积相同，套筒200的侧壁220厚度一致。其中，套筒200的侧壁220厚度一致是指侧壁220在误差范围之内一致，并不是严格意义上的一致。套筒200贯穿通孔102并伸出通孔102设置，由于套筒200上伸出通孔102的部分对应有变形空间，本体部310由开口210处伸入容纳空间240内时挤压套筒200内壁时，套筒200上伸出通孔102的部分形成凸起230，套筒200通过凸起230铆接于通孔102所在的板体100。
在另一些实施例中，请一并参阅图6，图6示出另一实施例中套筒201的结构示意图。套筒201呈筒状，具有侧壁220a，侧壁220a围合形成容纳空间240a，套筒201的开口210a和容纳空间240a连通。至少部分靠近开口210a的套筒201侧壁220a厚度小于第二端200b的侧壁220a的厚度。即沿套筒201的轴向，套筒201侧壁220a的横截面尺寸不等，侧壁220a采用变截面方式设置，且套筒201的第二端200b的侧壁220a更厚。在钉体300挤压套筒201内壁时，第二端200b的侧壁220a的变形量较大，在第二端200b的侧壁220a上更加容易形成凸起230，且凸起230的尺寸较大，保证套筒201能够稳定地铆接于通孔102。
请继续参阅图6，在开口210a至第二端200b的方向上，套筒201的侧壁220a厚度逐渐增大。且在开口210a至第二端200b的方向上，套筒201的内壁朝向套筒201中心倾斜。在这些实施例中，在开口210a至第二端200b的方向上，套筒201内壁倾斜，容纳空间240a的尺寸逐渐减小便于本体部310插入套筒201内。侧壁220a的厚度逐渐增大，当本体部310挤压套筒201内壁时，能够在第二端200b形成凸起230。
请继续参阅图6，套筒201的外壁为直壁，以便于套筒201插入通孔102。
可以理解的，在另一些实施例中，套筒201的内壁还可以为台阶结构(图中未示出)，使容纳空间240a的尺寸上大下小。当本体部310插入套筒201内时，本体部310挤压套筒201内壁的台阶结构，在套筒201外壁形成凸起230。
在另一些实施例中，请一并参阅图7，套筒202呈筒状，具有侧壁 220b，侧壁220b围合形成容纳空间240b，套筒202的开口210b和容纳空间240b连通。在第二端200b至开口210b的方向上，侧壁220b的外壁朝向套筒202中心倾斜。在本体部310挤压套筒202内壁时，与开口210b相对的另一端的外壁的变形量更大，使得形成于第二端200b的凸起230径向尺寸更大，使得套筒202的固定效果更好。
一些实施例中，请一并参阅图8，套筒203呈筒状，具有侧壁220c，侧壁220c围合形成容纳空间240c，套筒203的开口210c和容纳空间240c连通。侧壁220c的外壁凸出形成有隆起部221。当本体部310挤压套筒203内壁时，侧壁220c变形，变形传递至隆起部221，使得隆起部221能够形成凸起230。由于隆起部221本身就凸出于套筒203的外壁设置，能够增加凸起230的结构强度，即增加凸起230的径向尺寸，保证套筒203和通孔102之间相对位置的稳定性。
在又一些实施例中，请一并参阅图9和图10，图9是本申请另一实施例提供的一种套筒204的结构示意图，图10是套筒204在另一视角下的立体结构示意图。套筒204具有侧壁220d和开口210d，侧壁220d上开设有裂缝260，裂缝260由套筒204上第二端200b朝向开口210d延伸成型。在这些实施例中，由于套筒204上设置有裂缝260，当钉体300的本体部310挤压套筒204内壁时，裂缝260的尺寸会增大使得侧壁220d外翻形成凸起230。套筒204的侧壁220d开设有裂缝260，可以减小侧壁220d在形成凸起230时发生涨裂的可能性。
请一并参阅图11和图12，图11是图9中所示套筒204的俯视图，图12是图11中D-D处的剖视图。套筒204具有容纳空间240d。裂缝260和容纳空间240d连通，即裂缝260贯穿套筒204的侧壁220d使得套筒204受挤压容易发生变形。裂缝260的数量为多个，多个裂缝260沿套筒204的周向间隔分布。在一些实施例中，多个裂缝260沿套筒204的轴向均匀分布，使得套筒204的受力变形更加均匀。
在图9至图12所示实施例中，套筒204上第二端200b可以呈开口状，即套筒204两端开口。当套筒204的侧壁220d设置有裂缝260时，套筒204上与开口210d相对的第二端200b呈开口状，裂缝260由第二端 200b起向开口210d延伸。这时套筒204变形形成的凸起230尺寸较大，可以提高套筒204铆接的稳定性。在一些实施例中，本体部310可以贯穿套筒204设置，令套筒204变形更充分，套筒204变形形成的凸起230尺寸较大，保证套筒204铆接的稳定性。
钉体300的材料有多种，在一些实施例中，钉体300可以选用刚性材料，钉体300的材料例如包括硬性塑料、钢材、铝等。钉体300的结构较硬，在钉体300挤压套筒200内壁时钉体300不易发生变形。
在一些实施例中，请继续参阅图2，套筒200包括连接于侧壁220的凸缘部250。请一并参阅图13至图15，图13至图15示出了钉体300的结构示意图。钉体300还包括止挡端320，止挡端320连接于本体部310的一端，止挡端320用于当本体部310插入套筒200内时挤压凸缘部250。
请一并参阅图16和图17，图16示出了本申请实施例提供的一种盖板组件的结构示意图，图17是图16的爆炸结构示意图。根据申请另一方面提供的盖板组件10a，盖板组件10a包括：板体100，具有第一表面120和第二表面130、以及贯穿第一表面120和第二表面130的板体通孔110；和上述的套筒组件101，套筒组件101用于密封板体通孔110。套筒组件101包括套筒200和钉体300。
在这些实施例中，套筒组件101能够密封板体通孔110，保证板体通孔110的密封性。
请一并参阅图18至图20，图18是图16中盖板组件的俯视图，图19是图18中A-A处的剖视图，图20是图19中I处的局部放大结构示意图。在一些实施例中，套筒200上与开口210相对的另一端由第一表面120伸入板体通孔110，并由第二表面130伸出板体通孔110，凸起230形成于套筒200的第二端200b，且抵住第二表面130。
在这些实施例中，套筒200的开口210位于板体100的第一表面120所在侧，套筒200的第二端200b位于板体100的第二表面130所在侧。凸起230形成于第二端200b，且抵住第二表面130，第二表面130向凸起230提供限位，避免套筒200由板体通孔110处脱离板体100。
请一并参阅图21，在另一些实施例中，盖板组件11a包括板体100a和贯穿板体100a的通孔110a。套筒203的外壁形成有隆起部221，板体通孔110a的孔壁111a上形成有凹槽112a，隆起部221位于凹槽112a内以形成将套筒203铆接于板体100a的凸起230。在这些实施例中，凸起230形成于孔壁111a上的凹槽112a内，能够减小套筒203占据的空间。
凹槽112a的设置位置不做限定，凹槽112a可以位于第一表面120a和第二表面130a之间。
或者，请一并参阅图22，板体100b具有第一表面120b、第二表面130b及贯穿设置的板体通孔110b，板体通孔110b的孔壁111b上形成有凹槽112b。凹槽112b暴露于第二表面130b，不仅能够减小套筒200占据的空间，还便于套筒200插入板体通孔110b内，使套筒200在插入板体通孔110b的过程中不会受到阻碍。
请一并参阅图23，在又一些实施例中，板体100c具有板体通孔110c。在第一表面120c至第二表面130c的方向上，板体通孔110c的孔径逐渐减小。在这些实施例中，当套筒200插入板体通孔110c内时，套筒200上第二端200b对应于板体通孔110c孔径较小的位置，因此套筒200上第二端200b的变形量更大，能够形成凸起230并令套筒200稳定地铆接于板体通孔110c内。
凸起230的个数不做限定，凸起230可以只有一个，例如套筒200贯穿板体通孔110并由第二表面130伸出，形成一个与第二表面130抵接的凸起230。或者，孔壁111b上设置有凹槽112b，套筒200位于板体通孔110b内，形成位于凹槽112b内的一个凸起230(例如参见图8中的隆起部221形成的凸起230)。或者，在又一些实施例中，套筒200和板体100相互配合时产生两个凸起230，套筒200贯穿板体通孔110并由第二表面130伸出，以形成与第二表面130抵接的第一个凸起230；且板体通孔110的孔壁111b上形成有凹槽112b，在凹槽112b内形成第二个凸起230(例如参见图8中的隆起部221形成的凸起230)。
请一并参阅图24和图25，当套筒204的侧壁220d开设有裂缝260 (参见图9和图10)，且套筒204用于密封板体100上的板体通孔110时，套筒204由第一表面120进入板体通孔110，且套筒204由第二表面130伸出，裂缝260位于图25所示第二表面130的下方侧，能够避免裂缝260影响套筒200的密封性能。
在一些实施例中，请继续参阅图20，套筒200还包括侧壁220及连接于侧壁220的凸缘部250，至少部分凸缘部250搭接于板体100的第一表面120上，且凸缘部250和板体100之间存在间隙251。
在这些实施例中，至少部分凸缘部250和板体100之间存在间隙251，当钉体300的止挡端320挤压凸缘部250时，凸缘部250变形能够减小间隙251的尺寸，在间隙251内形成负压，能够避免止挡端320被凸缘部250顶起，防止钉体300从套筒200内脱离。至少部分凸缘部250搭接于板体100上能够形成密封界面，当止挡端320挤压凸缘部250时，能够增加凸缘部250和板体100的接触面积，增加密封界面的面积，提高密封效果。
凸缘部250的形状设置方式有多种，凸缘部250的纵截面可以呈台阶状。
或者，在另一些实施例中，凸缘部250呈伞状，凸缘部250的纵截面呈弧状并沿背离板体100的方向凸出设置。在这些实施例中，凸缘部250呈伞状，当钉体300向凸缘部250施加挤压力时，凸缘部250更容易发生变形。
接下来将结合图26至图30来介绍盖板组件10a在电池中的应用。如图26至图30所示，本申请实施例还提供一种电池，电池包括上述的盖板组件10a。电池可以为电池组、电池模块或电池单体中的任一者。
请继续参阅图26和图27，在一些实施例中，电池为电池组，电池组1包括箱体12和设置于箱体12内的电池模块11或电池单体10。
箱体12包括第一箱体12a和第二箱体12b。第一箱体12a和第二箱体12b扣合，使得箱体12内部形成封闭空间，以收纳电池模块11等。这里的封闭指盖住或关闭，可以是密封，也可以是非密封。
箱体12中所容置的电池模块11，电池模块11包括多个电池单 体10，电池模块11的数量不限于一个，可以为两个或多个。例如，多个电池模块11容置于箱体12中，不同的电池模块11之间通过连接件电连接，以实现电池模块11间的串并联。
或者电池组1的箱体12中直接放置电池单体10，电池单体10的数量不限于一个，可以为两个或多个。例如，多个电池单体10容置于箱体12中，不同的电池单体10之间通过汇流件电连接，以实现电池单体10间的串并联。
在一些实施例中，电池组1可以为储能柜(图中未示出)等储能设备，这时箱体12上可以设有门。
请参阅图27，在一些实施例中，电池为电池模块11。电池模块11包括框架20和位于框架20的电池单体10。
在一些实施例中，框架20由首尾依次连接的侧板21围合形成，电池单体10容纳于框架20中。
请继续参阅图28，在一些实施例中，电池为电池单体10。电池单体10包括壳体10b、位于壳体10b内的电极组件10c及盖设于壳体10b开口处的盖板组件10a。其中电极组件10c可通过将第一极片(图中未示出)、隔膜(图中未示出)以及第二极片(图中未示出)一同卷绕或层叠形成，其中，第一极片和第二极片极性相反，隔膜是介于第一极片和第二极片之间的绝缘体。
在一些实施例中，当盖板组件10a用于电池单体时，盖板组件10a还包括第一电极端子10d和第二电极端子10e，第一电极端子10d、第二电极端子10e极性相反且用于引出电能。
当盖板组件10a用于电池时，板体通孔110可以作为注液孔(图中未示出)使用，使得通过板体通孔110能够向电池内部注入电解液。注液完毕时，套筒组件101可以密封于板体通孔110内，防止电池内的电解液泄漏，能够有效提高电池的安全性能。
在使用本申请实施例的套筒组件101密封板体通孔110，即在使用本申请实施例的套筒组件101密封电池的注液孔时，只需要依次将套筒200插入注液孔内，然后将钉体300插入套筒200内并形成凸起230，即 可将套筒组件101铆接并密封于注液孔内。能够简化注液孔的密封工序，提高注液孔的密封效率，提高电池的装配效率。
此外，当电池使用一段时间后，电池内部产生气体时，可以直接将钉体300由套筒200内拔出，便于将电池排气。或者，当电池使用一段时间后，电解液发生消耗需要二次补液时，也可以将钉体300由套筒200内拔出，并将套筒200由注液孔内拔出，通过注液孔进行二次注液。注液完毕后可以依次将套筒组件101再次装配入注液孔内，完成注液孔的密封。
在一些实施例中，盖板组件10a还包括密封胶体400，密封胶体400覆盖于钉体300上并用于将钉体300和套筒200粘接于板体100。密封胶体400不仅能够保证套筒组件101和板体100之间的相对稳定性，还能够提供二次密封的作用。在一些实施例中，密封胶体400可以采用可溶解的材料。在需要对电池单体10进行二次注液时，溶解密封胶体400，将套筒组件101由板体通孔110处拆卸，即可通过板体通孔110对电池单体10进行二次注液。当注液完毕需要密封电池单体10时，可以将套筒组件101安装于板体通孔110，然后将密封胶体400设置于钉体300上，并通过密封胶体400将套筒组件101固定于板体100上。能够提高套筒组件101和板体100之间相对位置的稳定性，防止套筒组件101在电池单体10的使用过程中返松。
可以理解的是，盖板组件10a不仅可以用于盖设电池单体10的壳体10b，盖板组件10a还可以用于作为其他装置的盖体，只要其他装置具有和盖板组件10a尺寸像相适配的开口即可。
请一并参阅图29，图29示出了本申请实施例提供的一种用电装置的结构示意图，用电装置包括上述的电池。电池例如设置在用电装置的装置本体上，用于提供电能。
一些实施例中，用电装置为车辆、船舶、小型飞机等移动设备，其包括动力源，动力源包括电池，电池所提供的电能，为用电装置提供驱动力。一些实施例中，用电装置的驱动力全部为电能，此时动力源仅包括电池。另一些实施例中，用电装置的驱动力包括电能和其他能源(例如机 械能)，此时动力源包括电池和发动机等其他动力设备。参照图29，以车辆为例，一些实施例中，用电装置为新能源车，该新能源车可以为纯电动汽车、混合动力汽车、增程式汽车、电动三轮车或两轮电动车等。车辆包括车辆主体2和电池组1。
请一并参阅图30，本申请实施例还提供一种通孔的密封方法，使用上述的套筒组件101对板体100的板体通孔110进行密封，方法包括：
步骤S1：将套筒200插入板体100的板体通孔110内。
步骤S2：将钉体300由套筒200的开口210处伸入套筒200内，使得钉体300挤压套筒200内壁并形成凸起230。
在一些实施例中，在步骤S1中，将套筒200插入板体通孔110内，并使得套筒200由板体100的第二表面130伸出。在步骤S2中，将钉体300伸入套筒200内时，钉体300挤压套筒200内壁形成凸起230，凸起230抵接于第二表面130。
本申请可以以其他的具体形式实现，而不脱离其精神和本质特征。例如，特定实施例中所描述的算法可以被修改，而系统体系结构并不脱离本申请的基本精神。因此，当前的实施例在所有方面都被看作是示例性的而非限定性的，本申请的范围由所附权利要求而非上述描述定义，并且，落入权利要求的含义和等同物的范围内的全部改变从而都被包括在本申请的范围之中。

Claims (14)

  1. 一种套筒组件，用于密封通孔，包括：
    套筒，包括相对设置的第一端和第二端，所述第一端具有开口；
    钉体，包括本体部，所述本体部的径向尺寸大于所述套筒的筒径尺寸，以使所述套筒沿轴向插入所述通孔后，所述本体部能由所述开口插入所述套筒并挤压所述套筒内壁，以在所述套筒外壁形成用于将所述套筒铆接于所述通孔的凸起。
  2. 根据权利要求1所述的套筒组件，其中，至少部分靠近所述开口的所述套筒的侧壁厚度小于靠近所述第二端的所述侧壁厚度。
  3. 根据权利要求1-2任一项所述的套筒组件，其中，在所述开口至所述第二端的方向上，所述套筒的内壁朝向所述套筒中心倾斜。
  4. 根据权利要求1-3任一项所述的套筒组件，其中，所述套筒的外壁凸出形成有隆起部，所述隆起部用于形成所述凸起。
  5. 根据权利要求1-4任一项所述的套筒组件，其中，所述套筒的侧壁开设有裂缝，所述裂缝由所述第二端朝向所述开口延伸成型。
  6. 根据权利要求1-5任一项所述的套筒组件，其中，所述第二端为闭合状或开口状。
  7. 一种盖板组件，其中，包括：
    板体，具有第一表面和第二表面，以及贯穿所述第一表面和所述第二表面的板体通孔；和
    权利要求1-6任一项所述的套筒组件，所述套筒组件用于密封所述板体通孔。
  8. 根据权利要求7所述的盖板组件，其中，所述套筒的所述第二端由所述第一表面伸入所述板体通孔，并由所述第二表面伸出所述板体通孔，所述凸起形成于所述套筒的所述第二端，且抵住所述第二表面。
  9. 根据权利要求7-8任一项所述的盖板组件，其中，
    所述板体通孔的孔壁上形成有凹槽，所述凸起位于所述凹槽内。
  10. 根据权利要求9所述的盖板组件，其中，所述凹槽暴露于所述第二表面。
  11. 根据权利要求7-10任一项所述的盖板组件，其中，所述套筒还包括侧壁和连接于侧壁的凸缘部，至少部分所述凸缘部搭接于所述板体的第一表面上，且所述凸缘部和所述板体之间存在间隙。
  12. 一种电池，包括如权利要求7-11的盖板组件。
  13. 一种用电装置，包括如权利要求12所述的电池。
  14. 一种通孔的密封方法，使用上述权利要求1-6任一项所述的套筒组件对板体的板体通孔进行密封，方法包括：
    将所述套筒插入所述板体的所述板体通孔内；
    将所述钉体由所述套筒的所述开口处伸入所述套筒内，使得所述钉体挤压所述套筒内壁并形成凸起。
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