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WO2025180047A1 - Batterie et dispositif électrique - Google Patents

Batterie et dispositif électrique

Info

Publication number
WO2025180047A1
WO2025180047A1 PCT/CN2024/141515 CN2024141515W WO2025180047A1 WO 2025180047 A1 WO2025180047 A1 WO 2025180047A1 CN 2024141515 W CN2024141515 W CN 2024141515W WO 2025180047 A1 WO2025180047 A1 WO 2025180047A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
sealing member
battery
connecting portion
seal
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.)
Pending
Application number
PCT/CN2024/141515
Other languages
English (en)
Chinese (zh)
Inventor
翟玄
周聪
黄小腾
李兴星
王庆
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.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex 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 Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of WO2025180047A1 publication Critical patent/WO2025180047A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L43/00—Bends; Siphons
    • F16L43/02—Bends; Siphons adapted to make use of special securing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/025—Sealing the pipe being movable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/14—Sealing for double-walled or multi-channel pipes
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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 disclosure relates to the field of battery technology, and in particular to a battery and an electrical device.
  • coolant needs to be input into the battery.
  • the sealing performance at the connection between the battery and the delivery pipe is a key factor affecting battery performance.
  • the present disclosure provides a battery and an electrical device, which can effectively improve the sealing effect between a first sealing member and a first connecting portion.
  • the present disclosure provides a battery, comprising a mounting portion and a flange structure, the mounting portion being provided with a mounting hole, the flange structure comprising a first connecting portion, a first sealing member and a second sealing member, the first connecting portion being movably disposed in the mounting hole, the first sealing member being sleeved on the outer periphery of the first connecting portion, and the first sealing member being connected to the mounting portion, the second sealing member being sleeved on the outer periphery of the first connecting portion, and the second sealing member cooperating with the first sealing member to enhance the sealing effect between the first sealing member and the first connecting portion.
  • the sealing effect between the first sealing member and the first connecting portion can be enhanced, thereby improving the overall sealing performance of the flange structure and reducing the risk of leakage.
  • the first sealing component includes a first sealing portion, and the first sealing portion and the first connecting portion are in interference fit.
  • the sealing performance between the first sealing portion and the first connecting portion can be improved to prevent leakage.
  • the first sealing member includes a first sealing portion, a protrusion is provided on the periphery of the first connecting portion, and the first sealing portion is interference fit with the protrusion.
  • the first sealing member and the first connecting portion are sealed by interference fit between the first sealing portion and the raised portion, thereby improving the sealing effect.
  • the second sealing component includes a second sealing portion, and the second sealing portion is interference-fitted with the first connecting portion.
  • the second sealing member includes a second sealing portion, and the second sealing portion is welded to the first connecting portion.
  • the sealing effect and connection stability between the second sealing part and the first connecting part can be enhanced.
  • the sealing effect between the first sealing part and the first connecting part can be further improved.
  • the first sealing member is provided with a receiving groove
  • the second sealing member includes an inserting portion, which is inserted into the receiving groove
  • the first sealing member and the second sealing member can be matched with each other by inserting the inserting portion into the receiving groove.
  • the receiving groove includes a first receiving portion and a second receiving portion
  • the inserting portion includes a first inserting portion and a second inserting portion
  • the first inserting portion is inserted into the first receiving portion
  • the second inserting portion is inserted into the second receiving portion
  • the reliability of the fit between the inserting parts and the receiving grooves can be further improved, and the risk of the first sealing member and the second sealing member being separated from each other can be reduced.
  • a preset angle is formed between the first accommodating portion and the second accommodating portion, and a preset angle is formed between the first inserting portion and the second inserting portion.
  • the difficulty of the first seal and the second seal being separated from each other can be increased, and the matching reliability between the first seal and the second seal can be improved.
  • first receiving portion and the second receiving portion are arranged vertically, and the first inserting portion and the second inserting portion are arranged vertically.
  • the direction in which the first insertion portion disengages from the first accommodating portion can be perpendicular to the direction in which the second insertion portion disengages from the second accommodating portion, thereby increasing the difficulty of the first seal and the second seal disengaging from each other and improving the matching reliability between the first seal and the second seal.
  • the first receiving portion and the first inserting portion both extend in a radial direction of the first connecting portion, and the second receiving portion and the second inserting portion both extend in an axial direction of the first connecting portion.
  • first accommodating portion and the first insertion portion By arranging the first accommodating portion and the first insertion portion to extend radially along the first connecting portion, and arranging the second accommodating portion and the second insertion portion to extend axially along the first connecting portion, it is achieved that the direction in which the first insertion portion disengages from the first accommodating portion is perpendicular to the direction in which the second insertion portion disengages from the second accommodating portion, thereby effectively increasing the difficulty of the first seal and the second seal disengaging from each other and improving the matching reliability between the first seal and the second seal.
  • the second seal includes a first pressure portion, which is sleeved on the outer circumference of the first seal and is configured to make the first seal stick to the first connection portion along the axial and/or radial direction of the first connection portion.
  • first pressure portion By providing the first pressure portion, pressure can be applied to the first seal so that the first seal is pressed against the first connection portion along the axial and/or radial directions of the first connection portion, thereby improving the sealing effect between the first seal and the first connection portion in the axial and/or radial directions.
  • the first pressure portion includes a first mating surface inclined relative to the axial direction of the first connecting portion
  • the first sealing component includes a second mating surface inclined relative to the axial direction of the first connecting portion
  • the first mating surface contacts the second mating surface
  • the first mating surface can simultaneously apply pressure to the second mating surface in the axial and radial directions, so that the first seal is attached to the first connecting part along the axial and radial directions of the first connecting part, thereby effectively improving the sealing effect between the first seal and the second seal.
  • the first connecting portion includes a first connecting segment and a protrusion
  • the protrusion protrudes radially outward relative to the outer surface of the first connecting segment to form a step surface
  • the first seal includes a first sealing surface and a second sealing surface
  • the first pressure-applying portion is configured to press the first sealing surface toward the step surface and/or press the second sealing surface toward the outer surface of the first connecting segment.
  • a step surface By providing a raised portion raised relative to the first connecting section, a step surface can be formed, and at the same time, a first sealing surface and a second sealing surface are provided on the first sealing member.
  • the pressure applied by the first pressure-applying portion to the first sealing member can be further transmitted to the first sealing surface and the second sealing surface, thereby pressing the first sealing surface against the step surface and/or pressing the second sealing surface against the outer surface of the first connecting section, thereby achieving sealing of the two sealing surfaces.
  • the second sealing member includes a second pressure-applying portion configured to cause the first sealing member to adhere to the first connecting portion along an axial direction of the first connecting portion.
  • the first sealing member can be pressed against the first connecting portion along the axial direction of the first connecting portion, thereby achieving axial sealing between the first sealing member and the first connecting portion.
  • the second pressure-applying portion includes a third mating surface perpendicular to the axis of the first connecting portion
  • the first sealing component includes a fourth mating surface perpendicular to the axis of the first connecting portion
  • the third mating surface contacts the fourth mating surface
  • the third mating surface can be brought into close contact with the fourth mating surface under the action of the second pressure-applying portion, thereby achieving axial sealing between the first sealing member and the second sealing member.
  • the first connecting portion includes a first connecting segment and a protrusion
  • the protrusion protrudes radially outward relative to the outer surface of the first connecting segment to form a step surface
  • the first sealing member includes a first sealing surface
  • the second pressure portion is configured to press the first sealing surface toward the step surface.
  • the pressure applied by the second pressure portion on the fourth mating surface can be further transmitted to the first sealing surface, thereby pressing the first sealing surface toward the step surface, thereby achieving axial sealing between the first sealing member and the first connecting portion.
  • the present disclosure provides an electrical device comprising the above-mentioned battery, wherein the battery is used to supply electrical energy to the electrical device.
  • FIG1 is a schematic structural diagram of some embodiments of the battery provided by the present disclosure.
  • FIG2 is an enlarged view of the portion indicated by reference numeral A in FIG1 .
  • FIG3 is a partial enlarged view of the structure shown in FIG2 with part of the structure hidden.
  • FIG4 is a schematic structural diagram of a flange structure in some embodiments of the battery provided by the present disclosure.
  • FIG5 is an exploded view of a flange structure in some embodiments of the battery provided by the present disclosure.
  • FIG6 is a cross-sectional view of a flange structure in some embodiments of a battery provided by the present disclosure.
  • FIG. 7 is an enlarged view of the portion indicated by reference numeral B in FIG. 6 .
  • FIG8 is a cross-sectional view of a portion of the structure of some embodiments of the battery provided by the present disclosure.
  • FIG9 is a schematic structural diagram of the flange structure in other embodiments of the battery provided by the present disclosure.
  • FIG10 is an exploded view of the flange structure in other embodiments of the battery provided by the present disclosure.
  • FIG11 is a cross-sectional view of the flange structure in other embodiments of the battery provided by the present disclosure.
  • FIG12 is an enlarged view of the portion indicated by reference numeral C in FIG11.
  • FIG13 is a cross-sectional view of a portion of the structure of other embodiments of the battery provided by the present disclosure.
  • Sealing ring 21a, first connecting portion; 21b, second connecting portion; 211, first connecting section; 2111, outer surface; 212, Raised portion; 2121, stepped surface; 213, second connecting section; 214, first limiting portion; 215, first connecting hole; 221, support frame; 222, first sealing portion; 2221, first accommodating portion; 2222, second accommodating portion; 2223, Second mating surface; 2224, fourth mating surface; 2225, first sealing surface; 2226, second sealing surface; 223, second limiting portion; 224, second connecting hole; 230, welding portion; 231, second sealing portion; 232, first insertion portion; 233, second insertion portion; 234, first pressure portion; 2341, first mating surface; 235, second pressure portion; 2351, third mating surface.
  • references herein to "embodiments” mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure.
  • the appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.
  • the term "and/or” is simply a description of the association relationship between associated objects, indicating that three relationships can exist.
  • a and/or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.
  • the character "/" in this document generally indicates that the associated objects are in an "or" relationship.
  • multiple refers to more than two, unless otherwise specifically defined.
  • multiple groups refers to more than two groups
  • multiple sheets refers to more than two sheets, unless otherwise specifically defined.
  • coolant can be delivered to the battery interior to exchange heat and cool the battery.
  • a flange structure is required to connect the battery's water inlet and outlet nozzles and a counterpart for delivering coolant, so that the inside and outside of the battery are connected and the coolant is delivered to the inside of the battery.
  • the matching fittings that connect to the inlet and outlet nozzles must be aligned with the nozzle's axis before insertion.
  • some matching fittings may have manufacturing or assembly errors, which can result in radial forces being applied to the fittings after assembly.
  • Radial sealing can be used as the sealing method between the handpiece and the inlet and outlet water spouts. If the handpiece and the inlet and outlet water spouts are subjected to radial force for a long time, there will be two risks: first, the water spout is at risk of deformation and damage due to long-term force. If the water spout ruptures, the water cooling system seal will fail; second, a sealing ring can be used between the handpiece and the inlet and outlet water spouts to further strengthen the radial seal. The radial force will cause the compression of the sealing ring to be uneven. The compression ratio of the sealing ring is large in the direction of force and small in the opposite direction. Therefore, there is a risk of leakage in the opposite direction.
  • a floating flange structure can be used to connect the counterpart to the inlet and outlet nozzles. This allows for a certain amount of radial floating space when the inlet and outlet nozzles are connected to the counterpart, effectively addressing radial stress issues caused by manufacturing or assembly errors.
  • a floating flange structure must provide both a floating connection and a seal at the internal and external interfaces of the connection.
  • the present disclosure provides a battery, which includes a flange structure, and the flange structure includes a first connecting part, a first seal, and a second seal.
  • the sealing effect between the first seal and the first connecting part is further enhanced by the cooperation between the second seal and the first seal.
  • the embodiment of the present disclosure enhances the sealing effect between the first sealing member and the first connecting portion by providing a second sealing member, thereby improving the overall sealing performance of the flange structure and preventing the sealing effect from being reduced due to eccentric force during the floating connection process.
  • the battery disclosed in the embodiments of the present disclosure can be used, but is not limited to, in electrical equipment such as vehicles, ships, or aircraft.
  • the battery disclosed in the present disclosure can be used to form a power supply system for such electrical equipment, thereby effectively improving the sealing performance of the connection between the battery's water inlet and outlet nozzles and the counterpart, reducing the risk of leakage.
  • An embodiment of the present disclosure provides an electrical device using a battery as a power source, wherein the battery is configured to supply electrical energy to the electrical device.
  • the electrical device may be, but is not limited to, a mobile phone, a portable device, a laptop computer, an electric vehicle, an electric car, a ship, a spacecraft, an electric toy, an electric tool, and the like.
  • the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, and the like.
  • the electric toy includes a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like.
  • the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer.
  • the battery 100 includes a mounting portion 1 and a flange structure 2, the mounting portion 1 is provided with a mounting hole, the flange structure 2 includes a first connecting portion 21 a, a first sealing member 22 and a second sealing member 23, the first connecting portion 21 a is movably disposed in the mounting hole, the first sealing member 22 is sleeved on the outer periphery of the first connecting portion 21 a, and the first sealing member 22 is connected to the mounting portion 1, the second sealing member 23 is sleeved on the outer periphery of the first connecting portion 21 a, and the second sealing member 23 cooperates with the first sealing member 22 to enhance the sealing effect between the first sealing member 22 and the first connecting portion 21 a.
  • the sealing effect between the first sealing member 22 and the first connecting portion 21 a can be enhanced, thereby improving the overall sealing performance of the flange structure and reducing the risk of leakage.
  • the flange structure 2 is mounted on the mounting portion 1, and the mounting portion 1 is used to support the flange structure 2.
  • the mounting portion 1 can be a battery housing, or a mounting plate located inside the housing.
  • the mounting hole provided on the mounting portion 1 may be circular, square or in other shapes.
  • the first connecting portion 21a is movably arranged in the mounting hole so that the first connecting portion 21a has movable space relative to the mounting portion 1.
  • the manufacturing or assembly error can be overcome by the movement of the first connecting portion 21a relative to the mounting portion 1, thereby reducing the radial force exerted on the water inlet and outlet spout and the opponent piece and improving the connection stability between the water inlet and outlet spout and the opponent piece.
  • the sealing ability between the second seal 23 and the first connecting part 21a can be enhanced, and the sealing ability can be transferred to between the first seal 22 and the first connecting part 21a through the cooperation between the second seal 23 and the first seal 22, so that the sealing ability between the first seal 22 and the first connecting part 21a is not easily destroyed.
  • the sealing capability between the first sealing member 22 and the first connecting portion 21 a may be enhanced directly through the second sealing member 23 by improving the matching manner between the first sealing member 22 and the second sealing member 23 .
  • the first sealing member 22 includes a first sealing portion 222 , and an interference fit is formed between the first sealing portion 222 and the first connecting portion 21 a .
  • the sealing performance between the first sealing portion 22 and the first connecting portion 21 a can be improved to prevent leakage.
  • the first sealing member 22 includes a first sealing portion 222 .
  • a protrusion 212 is provided on the outer periphery of the first connecting portion 21 a .
  • the first sealing portion 222 is interference-fitted with the protrusion 212 .
  • the first sealing member 22 and the first connecting portion 21 a are sealed by the interference fit between the first sealing portion 222 and the protrusion 212 , thereby improving the sealing effect.
  • the size of other parts of the first connecting portion 21 a can be reduced, thereby facilitating the assembly of the first sealing member 22 and the first connecting portion 21 a .
  • the protrusion 212 may be provided in a ring shape along the circumference of the first connecting portion 21 a to achieve full sealing in the circumferential direction.
  • the end of the protrusion 212 away from the first connecting portion 21a is arc-shaped. This shape can facilitate the assembly of the first sealing member 22 and the first connecting portion 21a, and is conducive to achieving interference fit between the first sealing portion 222 and the protrusion 212 through extrusion deformation.
  • the second sealing member 23 includes a second sealing portion 231 , and the second sealing portion 231 is interference-fitted with the first connecting portion 21 a .
  • the flange structure 2 has two seals, thereby greatly improving the overall sealing performance of the flange structure 2.
  • the second sealing member 23 includes a second sealing portion 231 , and the second sealing portion 231 is welded to the first connecting portion 21 a .
  • the sealing effect and connection stability between the second sealing part 23 and the first connecting part 21a can be enhanced.
  • the sealing effect between the first sealing part 22 and the first connecting part 21a can be further improved.
  • the above embodiment indirectly improves the sealing effect between the first sealing member 22 and the first connecting portion 21 a by enhancing the sealing effect and connection stability between the second sealing portion 231 and the first connecting portion 21 a.
  • the flange structure 2 has two seals. Even if the seal between the first sealing member 22 and the first connecting portion 21a is destroyed and the sealing effect deteriorates, the welding connection between the second sealing portion 231 of the second sealing member 23 and the first connecting portion 21a can still achieve a good sealing effect, thereby maintaining the overall sealing effect of the flange structure 2 and preventing leakage.
  • a receiving groove is provided on the first sealing member 22 , and the second sealing member 23 includes an inserting portion, which is inserted into the receiving groove.
  • the first sealing member 22 and the second sealing member 23 can be matched with each other by inserting the inserting portion into the receiving groove.
  • the insertion portion is inserted into the receiving groove, which can improve the convenience of operation and simplify the matching structure.
  • the receiving groove includes a first receiving portion 2221 and a second receiving portion 2222
  • the inserting portion includes a first inserting portion 232 and a second inserting portion 233 .
  • the first inserting portion 232 is inserted into the first receiving portion 2221
  • the second inserting portion 233 is inserted into the second receiving portion 2222 .
  • the reliability of the fit between the inserting parts and the receiving grooves can be further improved, and the risk of the first sealing member 22 and the second sealing member 23 being separated from each other can be reduced.
  • a preset angle is defined between the first accommodating portion 2221 and the second accommodating portion 2222
  • a preset angle is defined between the first inserting portion 232 and the second inserting portion 233 .
  • the difficulty of the first seal 22 and the second seal 23 being separated from each other can be increased, and the matching reliability between the first seal 22 and the second seal 23 can be improved.
  • first receiving portion 2221 and the second receiving portion 2222 are arranged vertically, and the first inserting portion 232 and the second inserting portion 233 are arranged vertically.
  • the direction in which the first insertion portion 232 disengages from the first accommodating portion 2221 can be perpendicular to the direction in which the second insertion portion 233 disengages from the second accommodating portion 2222, thereby increasing the difficulty of the first seal 22 and the second seal 23 disengaging from each other and improving the matching reliability between the first seal 22 and the second seal 23.
  • first receiving portion 2221 and the first inserting portion 232 both extend in the radial direction of the first connecting portion 21 a
  • the second receiving portion 2222 and the second inserting portion 233 both extend in the axial direction of the first connecting portion 21 a .
  • the direction in which the first insertion portion 232 disengages from the first accommodating portion 2221 is perpendicular to the direction in which the second insertion portion 233 disengages from the second accommodating portion 2222, thereby effectively increasing the difficulty of the first seal 22 and the second seal 23 disengaging from each other and improving the matching reliability between the first seal 22 and the second seal 23.
  • first accommodating portion 2221 and the first inserting portion 232 both extend radially along the first connecting portion 21a, which can improve the fitting stability between the first seal 22 and the second seal 23 when the first seal 22 or the second seal 23 is subjected to axial force; and the second accommodating portion 2222 and the second inserting portion 233 both extend axially along the first connecting portion 21a, which can improve the fitting stability between the first seal 22 and the second seal 23 when the first seal 22 or the second seal 23 is subjected to radial force.
  • the first accommodating portion 2221 and the first inserting portion 232 both extend radially of the first connecting portion 21a
  • the second accommodating portion 2222 and the second inserting portion 233 both extend axially of the first connecting portion 21a. Therefore, the fit between the first seal 22 and the second seal 23 can resist axial force and radial force at the same time, thereby greatly enhancing the fit stability and reliability between the first seal 22 and the second seal 23, thereby providing conditions for maintaining the sealing effect of the flange structure 2 through the seal between the second seal 23 and the first connecting portion 21a when the sealing effect between the first seal 22 and the first connecting portion 21a deteriorates.
  • the second seal 23 includes a first pressure portion 234, which is sleeved on the outer periphery of the first seal 22, and the first pressure portion 234 is configured to make the first seal 22 stick to the first connection portion 21a along the axial and/or radial direction of the first connection portion 21a.
  • first pressure-applying portion 23 By setting the first pressure-applying portion 234, pressure can be applied to the first seal 22 so that the first seal 22 is attached to the first connection portion 21a in the axial and/or radial direction of the first connection portion 21a, thereby improving the sealing effect between the first seal 22 and the first connection portion 21a in the axial and/or radial direction.
  • pressure is directly applied to the first sealing member 22 through the first pressure-applying portion 234, so that the first sealing member 22 is attached to the first connecting portion 21a along the axial and/or radial direction of the first connecting portion 21a, thereby directly improving the sealing effect between the first sealing member 22 and the first connecting portion 21a.
  • first pressure portion 234 is configured to cause the first seal 22 to adhere to the first connection portion 21a in both the axial and radial directions of the first connection portion 21a
  • the sealing effect between the first seal 22 and the first connection portion 21a can be enhanced in both the axial and radial directions.
  • the first pressure portion 234 includes a first mating surface 2341 axially inclined relative to the first connection portion 21a
  • the first seal 22 includes a second mating surface 2223 axially inclined relative to the first connection portion 21a
  • the first mating surface 2341 contacts the second mating surface 2223.
  • the first mating surface 2341 can simultaneously apply pressure to the second mating surface 2223 in the axial and radial directions, so that the first seal 22 is attached to the first connecting portion 21a along the axial and radial directions of the first connecting portion 21a, thereby effectively improving the sealing effect between the first seal 22 and the second seal 23.
  • the first connecting portion 21a includes a first connecting segment 211 and a raised portion 212, the raised portion 212 protrudes radially outward relative to the outer surface 2111 of the first connecting segment 211 to form a step surface 2121, the first sealing member 22 includes a first sealing surface 2225 and a second sealing surface 2226, and the first pressure portion 234 is configured to press the first sealing surface 2225 toward the step surface 2121 and/or press the second sealing surface 2226 toward the outer surface 2111 of the first connecting segment 211.
  • a step surface 2121 can be formed, and at the same time, a first sealing surface 2225 and a second sealing surface 2226 are set on the first sealing member 22.
  • the pressure applied by the first pressure-applying portion 234 to the first sealing member 22 can be further transmitted to the first sealing surface 2225 and the second sealing surface 2226, so that the first sealing surface 2225 is pressed against the step surface 2121 and/or the second sealing surface 2226 is pressed against the outer surface 2111 of the first connecting section 211, thereby realizing sealing of the two sealing surfaces.
  • first sealing surface 2225 and the step surface 2121 are both planes perpendicular to the axis of the first connecting portion 21a, so that axial sealing between the first sealing member 22 and the first connecting portion 21a is achieved through contact between the first sealing surface 2225 and the step surface 2121.
  • the second sealing surface 2226 and the outer surface 2111 of the first connecting segment 211 are both annular surfaces arranged circumferentially around the first connecting portion 21a, so as to achieve radial sealing between the first seal 22 and the first connecting portion 21a through contact between the second sealing surface 2226 and the first connecting segment 211.
  • the second sealing member 23 includes a second pressing portion 235 , and the second pressing portion 235 is configured to make the first sealing member 22 stick to the first connecting portion 21 a along the axial direction of the first connecting portion 21 a .
  • the first sealing member 22 can be pressed against the first connecting portion 21 a along the axial direction of the first connecting portion 21 a , thereby achieving axial sealing between the first sealing member 22 and the first connecting portion 21 a .
  • the second pressure portion 235 includes a third mating surface 2351 perpendicular to the axis of the first connection portion 21a
  • the first sealing member 22 includes a fourth mating surface 2224 perpendicular to the axis of the first connection portion 21a
  • the third mating surface 2351 contacts the fourth mating surface 2224.
  • the third mating surface 2351 can be in close contact with the fourth mating surface 2224 under the action of the second pressure portion 235 , thereby achieving axial sealing between the first sealing member 22 and the second sealing member 23 .
  • the first connecting portion 21a includes a first connecting section 211 and a protrusion 212, the protrusion 212 protrudes radially outward relative to the outer surface 2111 of the first connecting section 211 to form a step surface 2121, the first sealing member 22 includes a first sealing surface 2225, and the second pressure portion 235 is configured to press the first sealing surface 2225 toward the step surface 2121.
  • the pressure applied by the second pressure-applying portion 235 to the fourth mating surface 2224 can be further transmitted to the first sealing surface 2225, so that the first sealing surface 2225 is pressed toward the step surface 2121, thereby realizing axial sealing between the first sealing member 22 and the first connecting portion 21a.
  • the first sealing surface 2225 can be pressed toward the step surface 2121, and the second sealing surface 2226 can be pressed toward the outer surface 2111 of the first connecting section 211 through the first pressure portion 234; and the first sealing surface 2225 can be pressed toward the step surface 2121 through the second pressure portion 235, thereby effectively enhancing the sealing effect between the first sealing member 22 and the first connecting portion 21a in the axial and radial directions.
  • the second seal 23 and the first connecting part 21a form a basically closed space for the first seal 22.
  • the first seal 22 is pressurized by the second seal 23 and remains fixed relative to the first connecting part 21a.
  • the first seal 22 cannot be separated from the basically closed space formed by the second seal 23 and the first connecting part 21a, thereby effectively ensuring the sealing effect between the first seal 22 and the first connecting part 21a.
  • the battery 100 includes a housing, in which a plurality of battery modules are disposed. Each battery module includes a plurality of battery cells.
  • the outlet of the flange structure 2 extends out of the housing of the battery 100 , and the outlet is connected to a delivery pipe for delivering coolant to deliver the coolant to the interior of the battery 100 to cool the battery 100 .
  • a mounting portion 1 is provided inside the battery 100 , and a flange structure 2 is mounted on the mounting portion 1 .
  • the flange structure 2 includes a connecting portion 21 , a first sealing member 22 , a second sealing member 23 , a first connecting member 24 and a second connecting member 25 .
  • the first sealing member 22 is fitted around the outer periphery of the first connecting portion 21a and is connected to the mounting portion 1 via a first connecting member 24.
  • the second sealing member 23 is fitted around the outer periphery of the first connecting portion 21a and cooperates with the first sealing member 22.
  • the first connecting portion 21a is connected to the mounting portion 1 via a second connecting member 25.
  • the connecting portion 21 includes a first connecting portion 21a and a second connecting portion 21b .
  • the first connecting portion 21a includes a first connecting segment 211 , a protruding portion 212 , and a second connecting segment 213 .
  • the protrusion 212 protrudes outward relative to the first connecting section 211.
  • the protrusion 212 is in a circular ring shape.
  • Both the first connecting section 211 and the second connecting section 213 are cylindrical.
  • the second connecting section 213 is connected to the side of the first connecting section 211 away from the raised portion 212, and the diameter of the second connecting section 213 is smaller than that of the first connecting section 211.
  • the second connecting portion 21 b is connected to a side of the protruding portion 212 away from the first connecting section 211 .
  • the axes of the first connecting section 211, the raised portion 212, and the second connecting section 213 of the first connecting portion 21a are collinear.
  • the first connecting portion 21a and the second connecting portion 21b are connected to form an L-shaped structure.
  • the axis of the first connecting portion 21a extends along a first direction, and the axis of the second connecting portion 21b extends along a second direction.
  • the first and second directions are perpendicular. In other embodiments, the angle between the first and second directions can also be acute or obtuse.
  • a flow channel is provided in the flange structure 2 to allow the delivery pipe inside the battery 100 to communicate with the delivery pipe outside the battery 100.
  • the first connection portion 21a and the second connection portion 21b are both provided with flow channels.
  • the direction in which the flow channel in the first connection portion 21a extends is perpendicular to the direction in which the flow channel in the second connection portion 21b extends.
  • the first limiting portion 214 is arranged on the first connecting portion 21a or at the connecting position between the first connecting portion 21a and the second connecting portion 21b.
  • the first limiting portion 214 is connected to the mounting portion 1 and is movable relative to the mounting portion 1 in the radial direction of the first connecting portion 21a.
  • the first limiting portion 214 is provided with a first connecting hole 215 , and the second connecting member 25 passes through the first connecting hole 215 and a third connecting hole provided on the mounting portion 1 to connect the first limiting portion 214 and the mounting portion 1 .
  • the diameter of the first connecting hole 215 is greater than the diameter of the second connecting member 25 . Therefore, in the radial direction of the first connecting portion 21 a , the first limiting portion 214 is movable relative to the mounting portion 1 .
  • the second connecting member 25 includes a bolt 251 and a nut 252 .
  • the bolt 251 passes through the first connecting hole 215 and the third connecting hole provided on the mounting portion 1 .
  • the nut 252 is installed at the end of the bolt 251 to limit the axial position of the bolt 251 .
  • the flange structure 2 further includes a sleeve 26 , which is installed in the first connecting hole 215 and the third connecting hole provided on the mounting portion 1 .
  • the diameter of the sleeve 26 is smaller than that of the first connecting hole 215 , and a gap L2 is defined between the outer circumference of the sleeve 26 and the inner wall of the first connecting hole 215 so that the first limiting portion 214 is movable relative to the mounting portion 1 in the radial direction of the first connecting portion 21 a .
  • the end of the sleeve 26 away from the mounting portion 1 is provided with a blocking portion, which is used to axially limit the second connecting member 25.
  • the diameter of the blocking portion is larger than the nut diameter of the bolt 251 to limit the axial movement of the bolt 251.
  • the axial length of the sleeve 26 is greater than the height of the first limiting portion 214 along the axis of the first connecting portion 21a. This arrangement allows a gap L1 to exist between the side of the blocking portion of the sleeve 26 that is closer to the mounting portion 1 and the side of the first limiting portion 214 that is farther away from the mounting portion 1. This gap L1 allows the first limiting portion 214 to move along the axis of the first connecting portion 21a, thereby accommodating axial floating during assembly.
  • first limiting portions 214 There are two first limiting portions 214 , and the two first limiting portions 214 are symmetrically connected to two sides of the first connecting portion 21 a .
  • the first limiting portion 214 can roughly position the first connecting portion 21a and the mounting portion 1, while allowing the first connecting portion 21a and the mounting portion 1 to have movable space in the radial direction to accommodate the floating connection of the flange structure 2 in the radial direction.
  • the first sealing member 22 includes a support frame 221 , a first sealing portion 222 and a second limiting portion 223 .
  • the support frame 221 supports the first sealing portion 222.
  • the first sealing portion 222 can be made of a soft material with good sealing properties, such as rubber.
  • the first sealing portion 222 is movable relative to the support frame 221 in the radial direction of the first connecting portion 21a. This radial movement of the first sealing portion 222 relative to the support frame 221 overcomes manufacturing or assembly errors when the water inlet and outlet are connected to the counterpart, thereby reducing radial forces acting on the water inlet and outlet and the counterpart.
  • the support frame 221 is generally annular in shape.
  • the cross section of the support frame 221 is generally T-shaped.
  • the support frame 221 can be made of plastic.
  • the first sealing portion 222 is wrapped around the top outer side of the support frame 221.
  • a sealing ring 27 may be provided on the top of the support frame 221.
  • the sealing ring 27 abuts against the inner wall of the battery 100 housing or other sealing surfaces within the housing to achieve a seal between the support frame 221 and the inner wall of the housing or other sealing surfaces within the housing.
  • the sealing ring 27 may be a rubber ring or the like.
  • the second limiting portion 223 is disposed on the supporting frame 221 , and the first sealing member 22 is connected to the mounting portion 1 via the second limiting portion 223 .
  • the second limiting portion 223 is provided with a second connection hole 224 , and the first connection member 24 passes through the second connection hole 224 and the fourth connection hole provided on the mounting portion 1 to achieve a fixed connection between the support frame 221 and the mounting portion 1 .
  • second limiting portions 223, which are evenly connected to the support frame 221 along the circumferential direction. As shown in FIG4 , two second limiting portions 223 are respectively located on both sides of the second connecting portion 21b, and two second limiting portions 223 are respectively located on both sides of the first limiting portion 214.
  • the second sealing member 23 includes a second sealing portion 231 , a first insertion portion 232 , and a second insertion portion 233 .
  • the second sealing portion 231 forms an interference fit with the first connecting section 211 and is welded together at the welded portion 230, forming a primary seal.
  • the raised portion 212 of the first connecting portion 21a forms an interference fit with the first sealing portion 222 of the first sealing member 22, forming a secondary seal.
  • the flange structure 2 forms a dual seal on the first connecting portion 21a via the first sealing member 22 and the second sealing member 23, achieving a dual sealing effect. If one seal deteriorates or fails, the other seal can maintain the seal.
  • the portion of the first sealing portion 222 that cooperates with the first connecting portion 21a is provided with a first accommodating portion 2221 and a second accommodating portion 2222.
  • the first accommodating portion 2221 extends radially of the first connecting portion 21a, and the second accommodating portion 2222 extends axially of the first connecting portion 21a.
  • the first insertion portion 232 of the second sealing member 23 extends in the radial direction of the first connecting portion 21 a
  • the second insertion portion 233 extends in the axial direction of the first connecting portion 21 a .
  • the matching stability and reliability between the first seal 22 and the second seal 23 can be improved, the difficulty of separating the first seal 22 and the second seal 23 can be increased, and the correlation between the two seals can be improved.
  • the first sealing component 22 is first mounted on the first connecting section 211 of the first connecting portion 21a, and the protrusion 212 and the first sealing component 222 are interference fit; then, the second sealing component is mounted on the first connecting portion 21a by cold pressing, and the first insertion portion 232 is inserted into the first accommodating portion 2221, and the second insertion portion 233 is inserted into the second accommodating portion 2222; after assembly is completed, the welding connection between the second sealing component 23 and the first connecting portion 21a is completed by laser welding.
  • the structure of the first connecting portion 21a is basically the same as that of the first embodiment, and the diameter of the protrusion 212 is larger than the diameter of the first connecting section 211, so a step surface 2121 is formed on the side of the protrusion 212 close to the first connecting section 211.
  • the difference of the first sealing member 22 is that, as shown in Figures 11 and 12, the first accommodating portion 2221 and the second accommodating portion 2222 are not provided on the first sealing portion 222, but the first sealing portion 222 is provided with a second mating surface 2223, a fourth mating surface 2224, a first sealing surface 2225 and a second sealing surface 2226.
  • the second sealing member 23 differs in that, instead of the first inserting portion 232 and the second inserting portion 233, the second sealing member 23 is provided with a first pressing portion 234 and a second pressing portion 235.
  • the first pressing portion 234 and the second pressing portion 235 are both pressed against the outer side of the first sealing portion 222 to apply pressure to the first sealing portion 222 and force the first sealing portion 222 to contact the outer surface 2111 of the first connecting portion 21a, thereby improving the sealing effect.
  • the first pressing portion 234 is inclined away from the axis of the first connecting portion 21 a in a direction away from the second sealing portion 231.
  • the second pressing portion 235 is perpendicular to the axis of the first connecting portion 21 a.
  • the first pressure portion 234 includes a first mating surface 2341
  • the second pressure portion 235 includes a third mating surface 2351.
  • the first mating surface 2341 contacts the second mating surface 2223
  • the third mating surface 2351 contacts the fourth mating surface 2224.
  • the first sealing surface 2225 abuts the stepped surface 2121 formed by the raised portion 212
  • the second sealing surface 2226 abuts the outer surface 2111 of the first connecting section 211 of the first connecting portion 21a, thereby forming two seals between the first sealing member 22 and the first connecting portion 21a.
  • the first mating surface 2341 and the second mating surface 2223 are both inclined relative to the axis of the first connecting portion 21a, and the angle between the first mating surface 2341 and the axis of the first connecting portion 21a is acute.
  • the third mating surface 2351 and the fourth mating surface 2224 are both perpendicular to the axis of the first connecting portion 21a.
  • the first sealing surface 2225 and the step surface 2121 are both annular and perpendicular to the axis of the first connecting portion 21a.
  • the second sealing surface 2226 and the outer surface 2111 of the first connecting section 211 are both annular and extend along the axis of the first connecting portion 21a.
  • the first seal 22 is first fitted onto the first connecting section 211 of the first connecting portion 21a, forming a preliminary seal between the raised portion 212, the first seal 22, and the first sealing portion 222.
  • the second seal is then fitted onto the first connecting portion 21a.
  • the first pressure-applying portion 234 is pressed against the outside of the first sealing portion 222, applying an oblique pressure to the first sealing portion 222. This force decomposition allows the first sealing portion 222 to simultaneously apply an axial force and a radial force.
  • the second pressure-applying portion 235 is pressed against the top of the first sealing portion 222, applying an axial force to the first sealing portion 222.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne une batterie (100) et un dispositif électrique. La batterie (100) comprend une partie de montage (1) et une structure de bride (2) ; un trou de montage est formé dans la partie de montage (1) ; la structure de bride (2) comprend une première partie de liaison (21a), un premier élément d'étanchéité (22) et un second élément d'étanchéité (23) ; la première partie de liaison (21a) est disposée de façon mobile dans le trou de montage ; le premier élément d'étanchéité (22) est emmanché sur la périphérie de la première partie de liaison (21a), et est relié à la partie de montage (1) ; et le second élément d'étanchéité (23) est emmanché sur la périphérie de la première partie de liaison (21a), et s'adapte sur le premier élément d'étanchéité (22) pour améliorer l'effet d'étanchéité entre le premier élément d'étanchéité (22) et la première partie de liaison (21a). Le dispositif électrique comprend la batterie (100).
PCT/CN2024/141515 2024-02-28 2024-12-23 Batterie et dispositif électrique Pending WO2025180047A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410221677.1 2024-02-28
CN202410221677.1A CN120557450A (zh) 2024-02-28 2024-02-28 电池和用电设备

Publications (1)

Publication Number Publication Date
WO2025180047A1 true WO2025180047A1 (fr) 2025-09-04

Family

ID=96828511

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/141515 Pending WO2025180047A1 (fr) 2024-02-28 2024-12-23 Batterie et dispositif électrique

Country Status (2)

Country Link
CN (1) CN120557450A (fr)
WO (1) WO2025180047A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1176197A (zh) * 1996-08-01 1998-03-18 住友电装株式会社 一种防噪音的索环及其制造方法
WO1998015768A1 (fr) * 1996-10-08 1998-04-16 Dover Corporation Raccord d'entree assurant l'etancheite avec des parois de recipients d'epaisseur variable
US20120169015A1 (en) * 2009-09-09 2012-07-05 Eagle Industry Co., Ltd. Lip type seal
CN105822844A (zh) * 2016-03-25 2016-08-03 深圳易瓦科技有限公司 线缆锁紧防水装置和线缆防水锁紧方法
CN211550768U (zh) * 2019-12-19 2020-09-22 孚能科技(镇江)有限公司 密封套和密封结构
WO2023001527A1 (fr) * 2021-07-23 2023-01-26 Man Truck & Bus Se Dispositif pour fournir un agent de refroidissement à un accumulateur d'énergie électrique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1176197A (zh) * 1996-08-01 1998-03-18 住友电装株式会社 一种防噪音的索环及其制造方法
WO1998015768A1 (fr) * 1996-10-08 1998-04-16 Dover Corporation Raccord d'entree assurant l'etancheite avec des parois de recipients d'epaisseur variable
US20120169015A1 (en) * 2009-09-09 2012-07-05 Eagle Industry Co., Ltd. Lip type seal
CN105822844A (zh) * 2016-03-25 2016-08-03 深圳易瓦科技有限公司 线缆锁紧防水装置和线缆防水锁紧方法
CN211550768U (zh) * 2019-12-19 2020-09-22 孚能科技(镇江)有限公司 密封套和密封结构
WO2023001527A1 (fr) * 2021-07-23 2023-01-26 Man Truck & Bus Se Dispositif pour fournir un agent de refroidissement à un accumulateur d'énergie électrique

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