SE546724C2 - Battery top cover assembly - Google Patents

Battery top cover assembly

Info

Publication number
SE546724C2
SE546724C2 SE2330178A SE2330178A SE546724C2 SE 546724 C2 SE546724 C2 SE 546724C2 SE 2330178 A SE2330178 A SE 2330178A SE 2330178 A SE2330178 A SE 2330178A SE 546724 C2 SE546724 C2 SE 546724C2
Authority
SE
Sweden
Prior art keywords
terminal
ring
wall
top cover
sealing ring
Prior art date
Application number
SE2330178A
Other languages
Swedish (sv)
Other versions
SE2330178A1 (en
Inventor
Haolin Chen
Junfeng Lai
Shiya He
Original Assignee
Ningbo Zhenyu Auto Parts 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
Priority claimed from CN202211403730.7A external-priority patent/CN115911777A/en
Priority claimed from CN202222991204.9U external-priority patent/CN218677346U/en
Priority claimed from CN202211406487.4A external-priority patent/CN115663413A/en
Application filed by Ningbo Zhenyu Auto Parts Co Ltd filed Critical Ningbo Zhenyu Auto Parts Co Ltd
Publication of SE2330178A1 publication Critical patent/SE2330178A1/en
Publication of SE546724C2 publication Critical patent/SE546724C2/en

Links

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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • 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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical 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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/154—Lid or cover comprising an axial bore for receiving a central current collector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—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
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the 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
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • 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
    • H01M50/342—Non-re-sealable arrangements
    • 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
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/383—Flame arresting or ignition-preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • 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
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Filling, Topping-Up Batteries (AREA)

Abstract

The disclosure provides a batery top cover assembly, comprising top cover plate (100) and a conductive terminal structure (300). Connectors (301) are formed on a botom surface of the conductive terminal structure (300), and the connectors (301) are fited in a connecting hole (102) of the top cover plate (100). Outer peripheral walls of the connectors (301) are in contact with and welded with inner peripheral walls of the connecting hole (102), so that the conductive terminal structure (300) is fixedly connected to the top cover plate (100). The independently manufactured and molded terminal structure is welded with the connecting hole (102) of the top cover plate (100) for fixing, which simplifies design and manufacturing process, thereby improving production efficiency and reducing production cost.

Claims (7)

1. A battery top cover assembly, comprising a top cover plate (100) and a conductive terminal structure (300), the conductive terrninal structure (300) being fitted in a terminal mounting position (101) on the top cover plate (l00); wherein the terminal mounting position (101) comprises a connecting hole (102), the connecting hole (102) is provided on the top cover plate (100) in a penetrating manner, connectors (301) arranged continuously or at intervals are formed on a bottom surface of the conductive terminal structure (300), and the connectors (301) are formed by extending the bottom surface of the conductive terminal structure (300) downwards; and the connectors (301) are fitted in the connecting hole (102), and outer peripheral walls of the connectors (301) are in contact with and welded with an inner peripheral wall of the connecting hole (102), so that the conductive terminal structure (300) is fiXedly connected to the top cover plate (100)=¿ the conductive terminal structure (300) comprises a terminal fiXture (401), a terminal (6), a sealing ring (700) and an insulator ( 81); the terminal fiXture (401) comprises a ring bottom (411) and a ring wall (412) formed on a top surface of the ring bottom ( 411); a terminal fiXing cavitv (413) in communication with a positioning hole (415) on the ring bottom ( 411) is formed between the top surface of the ring bottom (411) and the ring wall (412); the connectors (301) are formed on a bottom surface of the ring bottom ( 411), the terminal (6) and the sealing ring ( 700) are placed in the terminal fiXing cavitv (413), a terminal fiXing portion (62) of the terminal (6) is positioned in an inner hole of the sealing ring (700), an outer peripheral wall of the terminal fiXing portion ( 62) of the terminal ( 6) is arranged in contact with an inner peripheral wall of the sealing ring (700), and the sealing ring (700) is located between the terminal fiXing portion (62) of the terminal (6) and an inner bottom surface of the terminal fiXing cavitv (413); the insulator (81) is arranged to at least partiallv cover the terminal ( 6), and the insulator (81) is at least partiallv located between an outer peripheral wall of a terminal portion (61) of the terminal ( 6) and an inner peripheral wall of the ring wall (412); and the insulator (81) and the terminal fiXing portion (62) of the terminal (6) are arranged in concave-conveX fit, the terminal fiXture (401) and the insulator (81) are arranged in concave-conveX fit, and a first restricting portion on the ring wall (412) is in fit with a second restricting portion on the insulator (81), so that the insulator (81), the sealing ring (700) and the terminal ( 6) are all fixedlv connected in the terminal fiXing cavitv (413), and a top surface of theterminal portion (61) of the terminal ( 6) is exposed to the outside; the sealing ring (700) comprises a sealing ring sheet (701) and a sealing ring bodv (703) formed on a bottom surface of the sealing ring sheet (701), an outer wall of the sealing ring bodv (703) is in contact with an inner wall of the positioning hole (415) on the ring bottom (411), the sealing ring sheet (701) is located between the conveX portions (621) and the ring bottom (411) in a compressed state, a conveX ring (302) is formed on the top surface of the ring bottom (411), a ring groove (702) is formed on the bottom surface of the sealing ring sheet (701), and the conveX ring (302) is embedded in the ring groove (702), and the terminal fiXing portion (62) of the terminal (6) is positioned in an inner hole of the sealing ring sheet (701), and the outer peripheral wall of the terminal fiXing portion ( 62) of the terminal ( 6) is arranged in contact with an inner hole wall of the sealing ring sheet (701), so that the terminal fiXing portion (62) of the terminal (6) and the ring bottom (411) are sealed; and the batterv top cover assemblv further comprises a lower plastic part (200), wherein the lower plastic part (200) is fixed on a bottom surface of the top cover plate ( 100), and the top cover plate (100) is provided with an electrolvte iniection port (104) and an explosion-proof valve (105); a through hole (201) positionallv corresponding to the positioning hole ( 415) on the ring bottom (411), an electrolvte iniection hole (205) positionallv corresponding to the electrolvte iniection port ( 104) and a vent hole (206) positionallv corresponding to the explosion-proof valve ( 105) are formed on the lower plastic part (200), and an annular conveX is (202) formed bv eXtending an upper port edge of the through hole (201) upwards, and the annular conveX (202) is placed in the positioning hole (415) on the ring bottom (411).
2. The battery top cover assembly according to claim 1, wherein a positioning groove (103) is formed by recessing a portion of the top cover plate (100) located at the terminal mounting position (101), the connecting hole (102) is arranged on a bottom surface of the positioning groove (103) in a penetrating manner, a bottom of the conductive terminal structure (300) is placed in the positioning groove (103), an inner peripheral wall of the positioning groove (103) is arranged in contact with an outer peripheral wall of the conductive terminal structure (300), and the bottom surface of the conductive terminal structure (300) is arranged in contact with the bottom surface of the positioning groove (103). 4-å. The battery top cover assembly according to-el-aimå c1aim 2, Wherein a concave cavity (814) is formed on an inner Wa11 of the insu1ator (81), convex portions (621) arranged continuous1y or at interva1s are formed on the termina1 fiXing portion (62) of the termina1 (6) along a circumference of the outer periphera1 Wa11 of the termina1 fiXing portion, the convex portions (621) are embedded in the concave cavity (814), positioning convexes (817) are formed on an inner Wa11 of the concave cavity (814), positioning concaves (622) are formed on the conveX portions (621), and the positioning conveXes (817) are corresponding1y embedded in the positioning concaves (622). 5-4. The battery top cover assemb1y according to-e1-aim-4m, Wherein a stepped surface (816) is formed on the insu1ator (81), the stepped surface (816) is the first restricting portion, the insu1ator (81) is preformed, or the insu1ator (81) is formed by performing injection mo1ding and encapsu1ation treatment on the termina1 (6); a pressure is app1ied to the termina1 (6), so that the sea1ing ring (700) is bent at a top of the ring Wa11 (412) in a compressed state to form a riveting body (601), and the riveting body (601) is pressed on the stepped surface (816) of the insu1ator (81), so that the termina1 (6) and the sea1ing ring (700) are fiXed1y connected in the termina1 fiXing cavity (413) of the terrnina1 fiXture (401); and the riveting body (601) is the second restricting portion, and an outer periphera1 Wa11 of the terrnina1 fiXture (401) is arranged in contact With the inner periphera1 Wa11 of the positioning groove (103). é-Q. The battery top cover assemb1y according to-el-ai-må c1aim 4, Wherein a p1ura1ity of protrusions (303) are forrned on an inner Wa11 of the termina1 fiXing cavity (413), a p1ura1ity of recesses (504) are formed on an outer Wa11 of the insu1ator (81), and the protrusions (303) are corresponding1y embedded in the recesses (504). 9-6. The battery top cover assemb1y according to-el-ai-m-S c1aim 3, Wherein a p1ura1ity of 1imiting grooves (13) are formed on the ring Wa11 (412); a pressure is app1ied to the termina1 (6), so that the insulator (81) is injection molded When the sealing ring (700) is in the compressed state; the insulator (81) comprises a terminal covering portion (812), a ring Wall covering portion (811) and lirniting portions (813) fitted in the limiting grooves (13), the terminal covering portion (812) is located between the terminal (6) and the inner peripheral Wall of the ring Wall (412), and the ring Wall covering portion (811) covers an outer side Wall of the ring Wall (412), so that an outer peripheral Wall of the ring Wall covering portion (811) is arranged in contact With the inner peripheral Wall of the positioning groove (103); and the lirniting portions (813) are formed on an outer Wall of the terminal covering portion (812) or an inner Wall of the ring Wall covering portion (811), or the limiting portions (813) penetrate through the limiting grooves (13) and are then connected to the terminal covering portion (812) and the ring Wall covering portion (811) respectively, and the terminal covering portion (812), the ring Wall covering portion (811) and the lirniting portions (813) are combined to form an integral insulator (81). -1-9-1. The battery top cover assembly according to-el-aim-Q claim 6, Wherein flanges (414) arranged continuously or at intervals are formed on an outer peripheral Wall of the ring Wall (412), and the flanges (414) are the first restricting portion; depressions (815) arranged continuously or at intervals are formed on an inner side Wall of the ring Wall covering portion (811), and the depressions (815) are the second restricting portion; and the flanges (414) are embedded in the depressions (815).
SE2330178A 2022-11-10 2023-04-24 Battery top cover assembly SE546724C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202211403730.7A CN115911777A (en) 2022-11-10 2022-11-10 Injection molded pole construction
CN202222991204.9U CN218677346U (en) 2022-11-10 2022-11-10 Top cover structure of power battery
CN202211406487.4A CN115663413A (en) 2022-11-10 2022-11-10 Riveting molding pole column structure

Publications (2)

Publication Number Publication Date
SE2330178A1 SE2330178A1 (en) 2024-05-11
SE546724C2 true SE546724C2 (en) 2025-02-11

Family

ID=86692088

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330178A SE546724C2 (en) 2022-11-10 2023-04-24 Battery top cover assembly

Country Status (8)

Country Link
US (1) US20240162536A1 (en)
JP (1) JP7576652B2 (en)
DE (1) DE102023111349A1 (en)
FR (1) FR3142044A1 (en)
GB (1) GB2624265B (en)
HU (1) HUP2300164A1 (en)
NO (1) NO20230458A1 (en)
SE (1) SE546724C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116598727B (en) * 2023-07-18 2023-11-03 宁德时代新能源科技股份有限公司 Battery monomer, battery and electric equipment
CN118448790B (en) * 2024-07-08 2024-09-10 溧阳市力士汽车配件制造有限公司 Top cover structure of power battery and power battery
CN120261851B (en) * 2025-06-09 2025-09-05 宁波震裕汽车部件有限公司 A battery top cover assembly with welded poles

Citations (6)

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