WO2023185404A1 - 电路板组件、电池和用电设备 - Google Patents

电路板组件、电池和用电设备 Download PDF

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Publication number
WO2023185404A1
WO2023185404A1 PCT/CN2023/080182 CN2023080182W WO2023185404A1 WO 2023185404 A1 WO2023185404 A1 WO 2023185404A1 CN 2023080182 W CN2023080182 W CN 2023080182W WO 2023185404 A1 WO2023185404 A1 WO 2023185404A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
board assembly
space
insulating member
breathable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/080182
Other languages
English (en)
French (fr)
Inventor
刘小平
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.)
Dongguan Poweramp Technology Ltd
Original Assignee
Dongguan Poweramp Technology 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 Dongguan Poweramp Technology Ltd filed Critical Dongguan Poweramp Technology Ltd
Priority to JP2024557180A priority Critical patent/JP2025510290A/ja
Priority to AU2023247437A priority patent/AU2023247437B2/en
Publication of WO2023185404A1 publication Critical patent/WO2023185404A1/zh
Priority to US18/897,082 priority patent/US20250024613A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H05K5/0215—Venting apertures; Constructional details thereof with semi-permeable membranes attached to casings
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0086—Casings, cabinets or drawers for electric apparatus portable, e.g. battery operated apparatus
    • 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

  • This application relates to the field of battery technology, and in particular to a circuit board assembly, battery and electrical equipment.
  • circuit boards and circuit board components plays an important role in batteries and electrical equipment.
  • protection is usually achieved by coating a layer of three-proof adhesive on the surface of components. Due to the limited thickness of the three-proof adhesive coating, it will affect the service life of batteries or electrical equipment.
  • Embodiments of the present application provide a circuit board assembly, including a circuit board, a first housing, a first insulating member and a first breathable member.
  • the circuit board includes a first surface and a second surface oppositely arranged along a first direction.
  • the circuit board also includes electronic components located on the first surface.
  • the first housing includes a first recess, the circuit board is disposed in the first recess, the first recess has a first bottom wall, and a second surface faces the first bottom wall.
  • the first insulating member is disposed on the first surface and covers at least part of the electronic component.
  • the first insulating member is connected to the first housing to form a first space.
  • the first insulation member overlaps the projection of the first space in the first direction.
  • the first breathable component communicates the first space and the external space.
  • the first insulating member is disposed on the first surface and covers at least part of the electronic components to protect the electronic components on the first surface.
  • the first insulating member is also connected to the first shell to form a first space to protect the second surface located in the first space.
  • the first breathable component is used to balance the air pressure in the first space and the air pressure in the external space. The cooperation of the first housing, the first insulating member and the first breathable member can comprehensively improve the protection capability of the circuit board assembly.
  • the height of the first insulating member disposed on the first surface is greater than 1 mm. It is used to cover the pins of the electronic components on the first surface and prevent the pins of the electronic components from being exposed to achieve a protective effect.
  • At least part of the second surface is located in the first space. used to lower the second table Improve the protection ability of circuit board components by reducing the risk of damage from exposure to external space.
  • the first breathable member penetrates the circuit board and the first insulating member to connect the first space and the external space.
  • the first insulating member is formed by pouring an insulating material onto the first surface and solidifying it.
  • the first housing further includes a first connecting member, the first connecting member is provided on the first bottom wall, the first connecting member is arranged around the circuit board and connected with the circuit board to form a first space, and the first connecting member is provided on the first bottom wall.
  • the connecting piece is used to support the circuit board and the first insulating piece in the first direction.
  • the first insulating piece is connected to the first connecting piece and overlaps with the projection of the first space in the first direction for separating the first space and the external space.
  • the circuit board further includes a third surface, the third surface is disposed between the first surface and the second surface, and an end of the first connector away from the first bottom wall is provided with a first area and a second surface. area, the first area is connected to the second surface, and is used to support and connect the circuit board in the first direction. The second area is connected to the third surface and is used to limit the position of the circuit board and improve the stability of the connection between the circuit board and the first housing.
  • a gap is provided between the second region and the third surface, and the first insulating member is filled in the gap.
  • the first insulating member fills the gap between the third surface and the second region, which is beneficial to increasing the contact area between the first insulating member and the second region, thereby improving the connection strength between the first insulating member and the second region.
  • the first insulating member is in contact with the second area.
  • the second area is used to cooperate with the first surface to accommodate the potting glue to reduce the risk of overflow of the potting glue.
  • a first insulating member is formed in contact with the second area.
  • the first housing further includes a second connecting member, the second connecting member is at least partially located in the first space, and the circuit board assembly further includes a first fastener, and the first fastener connects the second connecting piece and circuit board to improve the stability of the connection between the circuit board and the first housing.
  • the second connecting member is connected to the first bottom wall and extends along the first direction, and an end of the second connecting member away from the first bottom wall is in contact with and connected to the second surface.
  • the first breathable member includes a first opening and a second opening, and a first channel connecting the first opening and the second opening.
  • the first opening communicates with the first space
  • the second opening communicates with the external space.
  • the first breathable component further includes a breathable film, and the breathable film is disposed in the first channel.
  • the breathable film can circulate gas in the first channel, reduce the risk of foreign matter in the external space entering the first space through the first channel, and improve the protection capability of the circuit board assembly.
  • the circuit board assembly further includes a first connection hole that penetrates the circuit board, and a second connection hole that penetrates the first insulating member, and the second connection hole communicates with the first connection hole.
  • the first breathable member includes a first part and a second part. The first part is at least partially disposed in the first connection hole to improve the stability of the connection between the first breathable component and the circuit board. The second part is at least partially disposed in the second connection hole and is used to improve the stability of the connection between the first breathable component and the first insulating component.
  • the height of the second portion protruding from the first surface is greater than the height of the first insulating member disposed on the first surface. It is used to reduce the risk of the potting glue flowing into the first channel through the second opening, which is beneficial to reducing the risk of the breathable membrane being punctured by foreign matter.
  • the second part has a first outer surface facing the first part and located outside the first channel, and the first outer surface is in contact with the first surface. It is used to stably support and fix the second part to the first surface, which is beneficial to improving the stability of the connection between the first breathable component and the circuit board.
  • the breathable film is provided in the first part to improve the stability of the breathable film in the first channel.
  • the first part has a first inner surface facing the second part and located in the first channel, and the first inner surface is connected to the breathable membrane.
  • the first inner surface is used to support and connect the breathable membrane to improve the stability of the breathable membrane in the first channel.
  • An embodiment of the present application also provides a battery, including a battery core.
  • the battery also includes the circuit board assembly in any of the above embodiments, and the battery core is electrically connected to the circuit board assembly.
  • An embodiment of the present application also provides an electrical device, which includes the battery in any of the above embodiments.
  • the first insulating member is disposed on the first surface and covers at least part of the electronic components to insulate the electronic components on the first surface. protection.
  • the first insulating member is also connected to the first shell to form a first space to protect the second surface located in the first space.
  • the first breathable component is used to balance the air pressure in the first space and the air pressure in the external space. The cooperation of the first housing, the first insulating member and the first breathable member can comprehensively improve the protection capability of the circuit board assembly.
  • Figure 1 is an exploded structural schematic diagram of a circuit board assembly according to an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a circuit board in a circuit board assembly according to an embodiment of the present application.
  • Figure 3 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application.
  • FIG. 4 is a cross-sectional view along section line A-A of FIG. 3 .
  • Figure 5 is a schematic structural diagram of the connection between the first connector and the circuit board in the circuit board assembly according to an embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a first connector in a circuit board assembly according to an embodiment of the present application.
  • FIG. 7 is an enlarged structural view of part V in FIG. 4 .
  • Figure 8 is a schematic structural diagram of the first valve body in the circuit board assembly according to an embodiment of the present application.
  • Figure 9 is a schematic structural diagram of a battery according to an embodiment of the present application.
  • Figure 10 is a schematic structural diagram of electrical equipment according to an embodiment of the present application.
  • Embodiments of the present application provide a circuit board assembly, including a circuit board, a first housing, a first insulating member and a first breathable member.
  • the circuit board includes a first surface and a second surface oppositely arranged along a first direction.
  • the circuit board also includes electronic components provided on the first surface.
  • the first housing includes a first recess, the circuit board is disposed in the first recess, the first recess has a first bottom wall, and a second surface faces the first bottom wall.
  • the first insulating member is disposed on the first surface and covers at least part of the electronic component.
  • the first insulating member is connected to the first housing to form a first space.
  • the first insulation member overlaps the projection of the first space in the first direction.
  • the first breathable component communicates the first space and the external space.
  • the first insulating member is disposed on the first surface and covers at least part of the electronic components to protect the electronic components on the first surface.
  • the first insulating member is also connected to the first shell to form a first space to protect the second surface located in the first space.
  • the first breathable component is used to balance the air pressure in the first space and the air pressure in the external space. The cooperation of the first housing, the first insulating member and the first breathable member can comprehensively improve the protection capability of the circuit board assembly.
  • one embodiment of the present application provides a circuit board assembly 100 , including a circuit board 10 .
  • the circuit board 10 includes a first surface 11 and a second surface 12 oppositely arranged along the first direction Z.
  • the circuit board 10 also includes electronic components 20 provided on the first surface 11 .
  • the electronic component 20 can realize module functions such as data collection, control, protection, communication, power calculation, signal transmission, and power transmission.
  • BMS Battery Management System
  • the circuit board assembly 100 can be used as a BMS (BATTERY MANAGEMENT SYSTEM, battery management system) component, it can be used to monitor and manage battery cells.
  • the electronic component 20 includes a first electrical connection terminal 21 , a second electrical connection terminal 22 , a sampling connector 23 , and a charge and discharge interface 24 .
  • the first electrical connection terminal 21 is used to electrically connect one of the positive electrode and the negative electrode of the battery core
  • the second electrical connection terminal 22 is used to electrically connect the other one of the positive electrode and the negative electrode of the battery core respectively.
  • the sampling connector 23 is used to electrically connect the battery core to detect information about the battery core.
  • the charging and discharging interface 24 is used to connect the power-consuming body and provide power to the power-consuming body.
  • the sampling connector 23 includes a connection port 231 and a rubber ring 232.
  • the connection port 231 is used to electrically connect an external detection device.
  • the rubber ring 232 is arranged around the connection port 231 to improve the waterproof performance of the connection port 231.
  • the circuit board assembly 100 further includes a first housing 30 , a first insulating member 40 and a first breathable member 50 .
  • the first housing 30 includes a first recess 31 .
  • the first recess 31 has a first bottom wall 311 and the second surface 12 faces the first bottom wall 311 .
  • the first insulating member 40 is disposed on the first surface 11 and covers at least part of the electronic component 20 to protect the electronic component 20 on the first surface 11 .
  • the first insulating member 40 is also connected with the first housing 30 to form a first space 33 .
  • the first insulating member 40 overlaps with the projection of the first space 33 in the first direction Z, and is used to separate the first space 33 from the external space.
  • At least part of the second surface 12 is located in the first space 33 to reduce the risk of damage to the second surface 12 when exposed to the external space and improve the protection capability of the circuit board assembly 100 .
  • the second surface 12 can be used to connect pins and other connectors of the electronic component 20
  • the first space 33 is used to protect the pins and other connectors of the electronic component 20 located on the second surface 12 .
  • the first breathable member 50 communicates the first space 33 and the external space.
  • the first breathable member 50 is used to discharge the gas in the first space 33 when the air pressure in the first space 33 is greater than the air pressure in the external space, so as to balance the air pressure in the first space 33 and the air pressure in the external space and reduce the pressure of the first insulating member. 40 is subject to the risk of separation from the first housing 30 due to air pressure shock.
  • the first breathable member 50 penetrates the circuit board 10 and the first insulating member 40 for connecting the first space 33 with the external space.
  • the first breathable member 50 penetrates the circuit board 10 and the first insulating member 40 along the first direction Z.
  • the first breathable member 50 is inclined relative to the first direction Z and penetrates the circuit board 10 and the first insulating member 40 .
  • the first insulating member 40 is disposed on the first surface 11 and covers at least part of the electronic component 20 to protect the electronic component 20 on the first surface 11 .
  • the first insulating member 40 is also connected with the first housing 30 to form a first space 33 to protect the second surface 12 located in the first space 33 .
  • the first breathable member 50 is used to balance the air pressure in the first space 33 and the air pressure in the external space. The cooperation of the first housing 30 , the first insulating member 40 and the first breathable member 50 can comprehensively improve the protection capability of the circuit board assembly 100 .
  • the first insulating member 40 is formed by pouring potting glue onto the first surface 11 and solidifying it.
  • the potting glue is specifically a two-component mixed silicone-based or polyurethane-based or epoxy resin-based liquid substance, which has excellent temperature resistance, insulation, mechanical strength, fluidity, adhesion, and durability. Corrosive and certain thermal conductivity properties.
  • the first insulating member 40 has thermal conductivity, which is beneficial to heat dissipation of the electronic component 20 and increases the service life of the electronic component 20 .
  • the first insulating member 40 is disposed on the first surface 11 to a height greater than 1 mm for covering the pins of the electronic component 20 on the first surface 11 and making the electronic component The pins of the device 20 are not exposed, thereby achieving a protective effect.
  • the height of the first insulating member 40 disposed on the first surface 11 is one of 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, etc.
  • the first housing 30 further includes a first connecting member 32 .
  • the first connecting member 32 is disposed on the first bottom wall 311 .
  • the first connecting member 32 is disposed around the circuit board 10 and connected with the circuit board 10 to form the first space 33 .
  • the first connecting member 32 is used to support the circuit board 10 and the first insulating member 40 in the first direction Z.
  • the first insulating member 40 is connected to the first connecting member 32 and overlaps with the projection of the first space 33 in the first direction Z, for separating the first space 33 and the external space.
  • one end of the first connector 32 is connected to the first bottom wall 311 , and the other end extends along the first direction Z and is connected to the circuit board 10 .
  • one end of the first connecting member 32 is connected to the first bottom wall 311 , and the other end extends obliquely relative to the first direction Z and is connected to the circuit board 10 .
  • the circuit board 10 further includes a third surface 13 , and the third surface 13 is disposed between the first surface 11 and the second surface 12 .
  • the first connecting member 32 is away from the first bottom wall
  • a first area 321 and a second area 322 are provided at one end of 311.
  • the first area 321 faces the second surface 12 and is connected to the second surface 12 for supporting and connecting the circuit board 10 in the first direction Z.
  • the second area 322 faces the third surface 13 and is connected to the third surface 13 for limiting the position of the circuit board 10 and improving the stability of the connection between the circuit board 10 and the first housing 30 .
  • the first insulating member 40 contacts the second region 322 .
  • the second region 322 is used to cooperate with the first surface 11 to accommodate the potting glue to reduce the risk of the potting glue overflowing.
  • a first insulation is formed in contact with the second region 322 Piece 40.
  • the connection between the first area 321 and the second surface 12 can reduce the risk of the potting glue flowing into the first space 33 from the gap.
  • the first insulating member 40 is also filled in the gap between the third surface 13 and the second area 322 to increase the direct contact area between the first insulating member 40 and the second area 322, thereby increasing the direct contact area between the first insulating member 40 and the second area 322.
  • the first housing 30 further includes a second connecting member 34 .
  • the second connecting piece 34 is at least partially located within the first space 33 .
  • the circuit board assembly 100 also includes a first fastener (not shown), which connects the second connecting member 34 and the circuit board 10 to improve the stability of the connection between the circuit board 10 and the first housing 30 .
  • the first fastener passes through the circuit board 10 and is connected to the second connector 34 , and the circuit board 10 is constrainedly connected between the first fastener and the second connector 34 .
  • the second connecting member 34 is connected to the first bottom wall 311 and extends along the first direction Z. One end of the second connecting member 34 away from the first bottom wall 311 is in contact with and connected to the second surface 12 .
  • the second connecting member 34 is connected to the first bottom wall 311 and extends obliquely relative to the first direction Z. One end of the second connecting member 34 away from the first bottom wall 311 is in contact with and connected to the second surface 12 .
  • the first housing 30 further includes a plurality of second connectors 34
  • the circuit board assembly 100 includes a corresponding number of first fasteners
  • the second connectors 34 are spaced apart along the circumferential direction of the first connector 32 It is set that the second connecting member 34 and the first fastener are connected in a one-to-one correspondence.
  • the number of the second connecting members 34 may be one of 4, 6, 8, 10, 12, 14, etc.
  • the first breathable member 50 includes a first opening 51 and a second opening 52, and a first channel 53 connecting the first opening 51 and the second opening 52. 51 companies opened the door
  • the second opening 52 communicates with the first space 33 and the external space.
  • the air pressure in the first space 33 is greater than the air pressure in the external space
  • the gas in the first space 33 enters the first channel 53 from the first opening 51 and is discharged to the external space through the second opening 52 to balance the inside of the first space 33 air pressure and the air pressure of the external space.
  • the first breathable member 50 further includes a breathable film 54 disposed in the first channel 53 .
  • the breathable film 54 can circulate the gas in the first channel 53 and reduce the risk of foreign matter in the external space entering the first space 33 through the first channel 53, thereby improving the protection capability of the circuit board assembly 100.
  • the breathable membrane 54 is waterproof, which can reduce the risk of moisture penetrating into the first space 33 through the breathable membrane 54 .
  • the breathable membrane 54 is made of polytetrafluoroethylene, polyethylene, or thermoplastic polyurethane elastomer.
  • the circuit board assembly 100 includes a first connection hole 14 penetrating the circuit board 10 and a second connection hole 41 penetrating the first insulating member 40 .
  • the second connection hole 41 communicates with the first connection hole 14 .
  • the first breathable member 50 includes a first part 50a and a second part 50b.
  • the first part 50a is at least partially disposed in the first connection hole 14 to improve the stability of the connection between the first breathable component 50 and the circuit board 10 .
  • the second part 50b is at least partially disposed in the second connection hole 41 to improve the stability of the connection between the first breathable component 50 and the first insulating component 40 .
  • the first opening 51 is provided in the first part 50a, and the second opening 52 is provided in the second part 50b.
  • the height of the second portion 50b protruding from the first surface 11 is greater than the height of the first insulating member 40 disposed on the first surface 11 to reduce the passage of potting glue through the first surface 11 .
  • the risk of the second opening 52 flowing into the first channel 53 can also be used to reduce the risk of the breathable membrane 54 being punctured by foreign matter.
  • the breathable membrane 54 is provided on the first portion 50a.
  • the first portion 50a has a first inner surface 55 facing the second portion 50b and located within the first channel 53 .
  • the first inner surface 55 is used to support and connect the breathable membrane 54 to improve the stability of the breathable membrane 54 in the first channel 53 .
  • the second portion 50b has a first outer surface 56 facing the first portion 50a and located within the first channel 53 .
  • the first outer surface 56 is in contact with the first surface 11 so that the second part 50b is stably supported and fixed on the first surface 11, thereby improving the stability of the connection between the first breathable member 50 and the circuit board 10.
  • the first portion 50a and the second portion 50b are disposed connected to each other along the first direction Z.
  • the first inner surface 55 is annular
  • the first outer surface 56 is annular, surrounding the first inner surface 55 and disposed concentrically with the first inner surface 55 .
  • the first housing 30 is made of aluminum alloy or magnesium alloy.
  • the first part 50a and the second part 50b are made of plastic.
  • one embodiment of the present application further provides a battery 200 , including a battery core 90 and the circuit board assembly 100 in any of the above embodiments.
  • the battery core 90 is electrically connected to the circuit board assembly 100 .
  • the circuit board assembly 100 can realize module functions such as collection, control, protection, communication, power calculation, signal transmission, and power transmission, and is used to monitor and manage the battery core 90 .
  • battery 200 also includes battery housing 80 .
  • the first recess 31 faces the battery case 80 .
  • the first case 30 and the battery case 80 are connected to form a second space 81 .
  • the battery core 90 is accommodated in the second space 81 , so that the first case 30 can conduct the circuit board 10 While protecting, the battery core 90 can also be protected in conjunction with the battery case 80 , thereby improving the utilization rate of the first case 30 and reducing the number of parts of the battery 200 , which is beneficial to realizing the lightweight of the battery 200 .
  • a plurality of stacked cells 90 are included.
  • the plurality of cells 90 are accommodated in the second space 81 and electrically connected to the circuit board assembly 100 .
  • the circuit board assembly 100 is used to manage the plurality of cells 90 synchronously. .
  • the electrical device 300 includes the battery 200 in any of the above embodiments.
  • the power-consuming device 300 may be an electronic device such as a mobile phone or a tablet computer, or a mobile device such as a drone or an electric vehicle.
  • the first insulating member 40 is disposed on the first surface 11 and covers at least part of the electronic component 20 to protect the electronic component 20 on the first surface 11 .
  • the first insulating member 40 is also connected with the first housing 30 to form a first space 33 to protect the second surface 12 located in the first space 33 .
  • the first breathable member 50 is used to balance the air pressure in the first space 33 and the air pressure in the external space. The cooperation of the first housing 30 , the first insulating member 40 and the first breathable member 50 can comprehensively improve the protection capability of the circuit board assembly 100 .

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Casings For Electric Apparatus (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种电路板组件，包括电路板，第一壳体、第一绝缘件和第一透气件。电路板包括沿第一方向相对设置的第一表面和第二表面。电路板还包括设于第一表面的电子元器件。第一壳体包括第一凹部，电路板设于第一凹部，第一凹部具有第一底壁，第二表面朝向第一底壁。第一绝缘件设置于第一表面且覆盖电子元器件的至少部分，第一绝缘件与第一壳体连接形成第一空间。第一绝缘件与第一空间在第一方向上的投影重叠。第一透气件连通第一空间和外部空间。本申请还公开设有电路板组件的电池和用电设备。第一壳体、第一绝缘件和第一透气件配合能综合提高电路板组件的防护能力。

Description

电路板组件、电池和用电设备 技术领域
本申请涉及电池技术领域，特别涉及一种电路板组件、电池和用电设备。
背景技术
电路板以及电路板的元器件的可靠性在电池和用电设备上发挥重要作用。现有电路板防护方案中，通常通过在元器件表面涂覆一层三防胶实现防护，由于三防胶涂覆厚度受限，会影响电池或用电设备的使用寿命。
发明内容
鉴于上述状况，有必要提供一种电路板组件，可综合提高防护能力。
本申请的实施例提供一种电路板组件，包括电路板，第一壳体、第一绝缘件和第一透气件。电路板包括沿第一方向相对设置的第一表面和第二表面。电路板还包括设于第一表面的电子元器件。第一壳体包括第一凹部，电路板设于第一凹部，第一凹部具有第一底壁，第二表面朝向第一底壁。第一绝缘件设置于第一表面且覆盖电子元器件的至少部分，第一绝缘件与第一壳体连接形成第一空间。第一绝缘件与第一空间在第一方向上的投影重叠。第一透气件连通第一空间和外部空间。
第一绝缘件设置于第一表面且覆盖电子元器件的至少部分，以对第一表面上的电子元器件进行防护。第一绝缘件还与第一壳体连接形成第一空间，以对位于第一空间中的第二表面进行防护。第一透气件用于平衡第一空间内的气压和外部空间的气压。第一壳体、第一绝缘件和第一透气件配合能综合提高电路板组件的防护能力。
本申请的一些实施例中，沿第一方向，第一绝缘件设置于第一表面上的高度大于1mm。用于覆盖电子元器件在第一表面上的引脚，并使电子元器件的引脚不外露，实现防护的效果。
本申请的一些实施例中，第二表面的至少部分位于第一空间。用于降低第二表 面暴露于外部空间受损的风险，提高电路板组件的防护能力。
本申请的一些实施例中，第一透气件贯穿电路板和第一绝缘件，用于连通第一空间和外部空间。
本申请的一些实施例中，第一绝缘件通过将绝缘材料灌注于第一表面固化形成。
本申请的一些实施例中，第一壳体还包括第一连接件，第一连接件设于第一底壁，第一连接件环绕电路板设置且与电路板连接形成第一空间，第一连接件用于在第一方向上支撑电路板和第一绝缘件。第一绝缘件连接第一连接件，并与第一空间在第一方向上的投影重叠，用于分隔第一空间和外部空间。
本申请的一些实施例中，电路板还包括第三表面，第三表面设置于第一表面和第二表面之间，第一连接件远离第一底壁的一端设有第一区域和第二区域，第一区域连接第二表面，用于在第一方向上支撑并连接电路板。第二区域连接第三表面，用于对电路板进行限位，提高电路板与第一壳体连接的稳定性。
本申请的一些实施例中，第二区域与第三表面之间设有间隙，第一绝缘件填充于间隙中。第一绝缘件填充于第三表面与第二区域之间的间隙中，有利于提高第一绝缘件和第二区域的接触面积，进而提高第一绝缘件和第二区域的连接强度。
本申请的一些实施例中，第一绝缘件接触连接第二区域。在制备过程中，第二区域用于与第一表面配合容纳灌封胶以降低灌封胶外溢的风险，灌封胶固化后形成与第二区域接触连接的第一绝缘件。
本申请的一些实施例中，第一壳体还包括第二连接件，第二连接件至少部分位于第一空间内，电路板组件还包括第一紧固件，第一紧固件连接第二连接件和电路板，以提高电路板与第一壳体连接的稳定性。
本申请的一些实施例中，第二连接件连接第一底壁且沿第一方向延伸，第二连接件远离第一底壁的一端接触连接第二表面。
本申请的一些实施例中，第一透气件包括第一开口和第二开口，以及连通第一开口和第二开口的第一通道，第一开口连通第一空间，第二开口连通外部空间。当第一空间内的气压大于外部空间的气压时，第一空间内的气体自第一开口进入第一通道并通过第二开口排出至外部空间，以平衡第一空间内的气压和外部空间的气压。
本申请的一些实施例中，第一透气件还包括透气膜，透气膜设置于第一通道中。 透气膜可使第一通道内的气体流通，并降低外部空间中的异物通过第一通道进入第一空间的风险，提高电路板组件的防护能力。
本申请的一些实施例中，电路板组件还包括贯穿电路板的第一连接孔，以及贯穿第一绝缘件的第二连接孔，第二连接孔连通第一连接孔。第一透气件包括第一部分和第二部分。第一部分至少部分设置于第一连接孔中，用于提高第一透气件与电路板连接的稳定性。第二部分至少部分设置于第二连接孔中，用于提高第一透气件与第一绝缘件连接的稳定性。
本申请的一些实施例中，沿第一方向，第二部分凸出第一表面的高度大于第一绝缘件设置在第一表面上的高度。用于降低灌封胶通过第二开口流入第一通道中的风险，有利于降低透气膜被异物戳破的风险。
本申请的一些实施例中，第二部分具有朝向所述第一部分且位于所述第一通道外的第一外表面，所述第一外表面与所述第一表面接触连接。用于使第二部分稳定支撑固定于第一表面，有利于提高第一透气件与电路板连接的稳定性。
本申请的一些实施例中，透气膜设于第一部分，以提高透气膜在第一通道中的稳定性。
本申请的一些实施例中，所述第一部分具有朝向所述第二部分且位于所述第一通道内的第一内表面，所述第一内表面连接所述透气膜。第一内表面用于支撑连接透气膜，以提高透气膜在第一通道中的稳定性。
本申请的实施例还提供一种电池，包括电芯。电池还包括上述任一实施例中的电路板组件，电芯电连接于电路板组件。
本申请的实施例还提供一种用电设备，用电设备包括上述任一实施例中的电池。
本申请的电路板组件、以及设有电路板组件的电池和用电设备中，第一绝缘件设置于第一表面且覆盖电子元器件的至少部分，以对第一表面上的电子元器件进行防护。第一绝缘件还与第一壳体连接形成第一空间，以对位于第一空间中的第二表面进行防护。第一透气件用于平衡第一空间内的气压和外部空间的气压。第一壳体、第一绝缘件和第一透气件配合能综合提高电路板组件的防护能力。
附图说明
图1是本申请的一个实施例的电路板组件的拆分结构示意图。
图2是本申请的一个实施例的电路板组件中电路板的结构示意图。
图3是本申请的一个实施例的电路板组件的结构示意图。
图4是图3沿剖面线A-A的剖面图。
图5是本申请的一个实施例的电路板组件中第一连接件和电路板连接的结构示意图。
图6是本申请的一个实施例的电路板组件中第一连接件的结构示意图。
图7是图4中V部分的结构放大图。
图8是本申请的一个实施例的电路板组件中第一阀体的结构示意图。
图9是本申请的一个实施例的电池的结构示意图。
图10是本申请的一个实施例的用电设备的结构示意图。
主要元件符号说明
电路板组件                  100
电池                        200
用电设备                    300
电路板                      10
第一表面                    11
第二表面                    12
第三表面                    13
第一连接孔                  14
电子元器件                  20
第一电连接端子              21
第二电连接端子              22
采样连接器                  23
连接口                      231
胶圈                        232
充放电接口                  24
第一壳体                    30
第一凹部                    31
第一底壁                    311
第一连接件                  32
第一区域                    321
第二区域                    322
第一空间                    33
第二连接件                  34
第一绝缘件                  40
第二连接孔                  41
第一透气件                  50
第一部分                    50a
第二部分                    50b
第一开口                    51
第二开口                    52
第一通道                    53
透气膜                      54
第一内表面                  55
第一外表面                  56
电池壳体                    80
第二空间                    81
电芯                        90
第一方向                    Z
如下具体实施方式将结合上述附图进一步说明本申请。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。
需要说明的是，当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中设置的元件。当一个元件被认为是“设置在”另一个元件，它可以是直接设置在另一个元件上或者可能同时存在居中设置的元件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。本文所使用的术语“垂直的”、“水平的”、“左”、“右”、“顶”、“底”以及类似的表述只是为了说明的目的，并不用于限制本申请。
可以理解，当两元件平行/垂直设置时沿同一方向设置，两元件之间可存在一定的夹角，两元件之间的允许存在0-±10％的公差，两元件大于、等于或小于允许存在0-±10％的公差。
本申请的实施例提供一种电路板组件，包括电路板，第一壳体、第一绝缘件和第一透气件。电路板包括沿第一方向相对设置的第一表面和第二表面。电路板还包括设于第一表面的电子元器件。第一壳体包括第一凹部，电路板设于第一凹部，第一凹部具有第一底壁，第二表面朝向第一底壁。第一绝缘件设置于第一表面且覆盖电子元器件的至少部分，第一绝缘件与第一壳体连接形成第一空间。第一绝缘件与第一空间在第一方向上的投影重叠。第一透气件连通第一空间和外部空间。
上述电路板组件中，第一绝缘件设置于第一表面且覆盖电子元器件的至少部分，以对第一表面上的电子元器件进行防护。第一绝缘件还与第一壳体连接形成第一空间，以对位于第一空间中的第二表面进行防护。第一透气件用于平衡第一空间内的气压和外部空间的气压。第一壳体、第一绝缘件和第一透气件配合能综合提高电路板组件的防护能力。
结合附图，对本申请的实施例作进一步的说明。
请参阅图1，本申请的一个实施例提供一种电路板组件100，包括电路板10。电路板10包括沿第一方向Z相对设置的第一表面11和第二表面12。电路板10还包括设于第一表面11的电子元器件20。在一些实施例中，电子元器件20能够实现数据采集、控制、保护、通讯、电量计算、信号传输、电能传输等模块功能，可 选的，电路板组件100作为BMS(BATTERY MANAGEMENT SYSTEM，电池管理系统)组件时，能够用于监控并管理电芯。
请一并参阅图2，在一些实施例中，电子元器件20包括第一电连接端子21、第二电连接端子22、采样连接器23、充放电接口24。第一电连接端子21用于电连接电芯的正极和负极的一个，第二电连接端子22分别用于电连接电芯的正极和负极中的另外一个。采样连接器23用于电连接电芯，以检测电芯的信息。充放电接口24用于连接用电主体并为用电主体提供电力。
在一些实施例中，采样连接器23包括连接口231和胶圈232，连接口231用于电连接外部检测设备，胶圈232环绕连接口231设置，以提高连接口231的防水性能。
请一并参阅图3和图4，电路板组件100还包括第一壳体30、第一绝缘件40和第一透气件50。第一壳体30包括第一凹部31。第一凹部31具有第一底壁311，第二表面12朝向第一底壁311。第一绝缘件40设置于第一表面11且覆盖电子元器件20的至少部分，用于对第一表面11上的电子元器件20进行防护。第一绝缘件40还与第一壳体30连接形成第一空间33。第一绝缘件40与第一空间33在第一方向Z上的投影重叠，用于分隔第一空间33和外部空间。第二表面12的至少部分位于第一空间33中，以降低第二表面12暴露于外部空间受损的风险，提高电路板组件100的防护能力。
在一实施例中，第二表面12可用于连接电子元器件20的引脚等连接件，第一空间33用于保护位于第二表面12上的电子元器件20的引脚等连接件。
请再次参阅图4，第一透气件50连通第一空间33和外部空间。第一透气件50用于在第一空间33内的气压大于外部空间的气压时排出第一空间33内的气体，以平衡第一空间33内的气压和外部空间的气压，降低第一绝缘件40受到气压冲击与第一壳体30分离的风险。
在一些实施例中，第一透气件50贯穿电路板10和第一绝缘件40，用于连通第一空间33和外部空间。
在一些实施例中，第一透气件50沿第一方向Z贯穿电路板10和第一绝缘件40。
可以理解的是，在一些实施例中，第一透气件50相对第一方向Z倾斜并贯穿电路板10和第一绝缘件40。
上述电路板组件100中，第一绝缘件40设置于第一表面11且覆盖电子元器件20的至少部分，以对第一表面11上的电子元器件20进行防护。第一绝缘件40还与第一壳体30连接形成第一空间33，以对位于第一空间33中的第二表面12进行防护。第一透气件50用于平衡第一空间33内的气压和外部空间的气压。第一壳体30、第一绝缘件40和第一透气件50配合能综合提高电路板组件100的防护能力。
请继续参阅图3和图4，在一些实施例中，第一绝缘件40通过灌封胶灌注于第一表面11固化形成。可选的，灌封胶具体为一种双组分混合的硅系或聚氨酯类型或环氧树脂类液态物质，具备优良的耐温性、绝缘性、机械强度、流动性、粘接性、耐腐蚀性以及一定的导热性能。
在一些实施例中，第一绝缘件40具有导热性，有利于电子元器件20散热，提升电子元器件20的使用寿命。
在一些实施例中，沿第一方向Z，第一绝缘件40设置在第一表面11上的高度大于1mm，用于覆盖电子元器件20在第一表面11上的引脚，并使电子元器件20的引脚不外露，实现防护的效果。可选地，第一绝缘件40设置在第一表面11上的高度为1.5mm、2mm、2.5mm、3mm、3.5mm、4mm等中的一个。
请一并参阅图5和图6，在一些实施例中，第一壳体30还包括第一连接件32。第一连接件32设于第一底壁311，第一连接件32环绕电路板10设置且与电路板10连接形成第一空间33。第一连接件32用于在第一方向Z上支撑电路板10和第一绝缘件40。第一绝缘件40连接第一连接件32，并与第一空间33在第一方向Z上的投影重叠，用于分隔第一空间33和外部空间。
在一些实施例中，第一连接件32一端连接第一底壁311，另一端沿第一方向Z延伸且与电路板10连接。
可以理解的是，在一些实施例中，第一连接件32一端连接第一底壁311，另一端相对第一方向Z倾斜延伸且与电路板10连接。
请一并参阅图4和图6，在一些实施例中，电路板10还包括第三表面13，第三表面13设置于第一表面11和第二表面12之间。第一连接件32远离第一底壁 311的一端设有第一区域321和第二区域322。第一区域321朝向第二表面12且连接第二表面12，用于在第一方向Z上支撑并连接电路板10。第二区域322朝向第三表面13且连接第三表面13，用于对电路板10进行限位，提高电路板10与第一壳体30连接的稳定性。
在一些实施例中，第一绝缘件40接触连接第二区域322。具体地，在制备过程中，第二区域322用于与第一表面11配合容纳灌封胶以降低灌封胶外溢的风险，灌封胶固化后形成与第二区域322接触连接的第一绝缘件40。
可以理解的是，在一些实施例中，第三表面13与第二区域322存在间隙。第一区域321与第二表面12连接可降低灌封胶自该间隙流入第一空间33中的风险。第一绝缘件40还填充于第三表面13与第二区域322之间的间隙中，以提高第一绝缘件40和第二区域322直接的接触面积，进而提高第一绝缘件40和第二区域322的连接强度。
请继续参阅图6，在一些实施例中，第一壳体30还包括第二连接件34。第二连接件34至少部分位于第一空间33内。电路板组件100还包括第一紧固件(图未示)，第一紧固件连接第二连接件34和电路板10，以提高电路板10与第一壳体30连接的稳定性。
在一些实施例中，第一紧固件穿过电路板10并连接第二连接件34，电路板10限位连接于第一紧固件和第二连接件34之间。
在一些实施例中，第二连接件34连接第一底壁311且沿第一方向Z延伸，第二连接件34远离第一底壁311的一端接触连接第二表面12。
在一些实施例中，第二连接件34连接第一底壁311且相对第一方向Z倾斜延伸，第二连接件34远离第一底壁311的一端接触连接第二表面12。
在一些实施例中，第一壳体30还包括多个第二连接件34，电路板组件100包括对应数量的第一紧固件，第二连接件34沿第一连接件32的环绕方向间隔设置，第二连接件34和第一紧固件一一对应连接。可选地，第二连接件34的数量可以为4、6、8、10、12、14等中的一个。
请一并参阅图7和图8，在一些实施例中，第一透气件50包括第一开口51和第二开口52，以及连通第一开口51和第二开口52的第一通道53，第一开口51连 通第一空间33，第二开口52连通外部空间。当第一空间33内的气压大于外部空间的气压时，第一空间33内的气体自第一开口51进入第一通道53并通过第二开口52排出至外部空间，以平衡第一空间33内的气压和外部空间的气压。
在一些实施例中，第一透气件50还包括透气膜54，透气膜54设置于第一通道53中。透气膜54可使第一通道53内的气体流通，并降低外部空间中的异物通过第一通道53进入第一空间33的风险，提高电路板组件100的防护能力。
在一些实施例中，透气膜54具有防水性，可降低水分通过透气膜54渗入第一空间33内的风险。
可选地，透气膜54由聚四氟乙烯、聚乙烯或热塑性聚氨酯弹性体制成。
在一些实施例中，电路板组件100包括贯穿电路板10的第一连接孔14，以及贯穿第一绝缘件40的第二连接孔41，第二连接孔41连通第一连接孔14。第一透气件50包括第一部分50a和第二部分50b。第一部分50a至少部分设置于第一连接孔14中，用于提高第一透气件50与电路板10连接的稳定性。第二部分50b至少部分设置于第二连接孔41中，用于提高第一透气件50与第一绝缘件40连接的稳定性。
第一开口51设于第一部分50a，第二开口52设于第二部分50b。在一些实施例中，沿第一方向Z，第二部分50b凸出所述第一表面11的高度大于第一绝缘件40设置在第一表面11上的高度，用于降低灌封胶通过第二开口52流入第一通道53中的风险，并还可用于降低透气膜54被异物戳破的风险。
在一些实施例中，透气膜54设于第一部分50a。具体地，第一部分50a具有朝向第二部分50b且位于第一通道53内的第一内表面55。第一内表面55用于支撑连接透气膜54，以提高透气膜54在第一通道53中的稳定性。
第二部分50b具有朝向第一部分50a且位于第一通道53内的第一外表面56。第一外表面56与第一表面11接触连接，以使第二部分50b稳定支撑固定于第一表面11，进而提高第一透气件50与电路板10连接的稳定性。
在一些实施例中，第一部分50a和第二部分50b沿第一方向Z相互连接设置。可选地，沿第一方向Z观察，第一内表面55呈圆环状，第一外表面56呈圆环状包围第一内表面55并与第一内表面55同圆心设置。
在一些实施例中，第一壳体30由铝合金或镁合金制成。第一部分50a和第二部分50b由塑胶制成。
请参阅图9，本申请的一个实施例还提供一种电池200，包括电芯90和上述任一实施例中的电路板组件100。电芯90电连接于电路板组件100。电路板组件100可实现采集、控制、保护、通讯、电量计算、信号传输、电能传输等模块功能，用于监控并管理电芯90。
在一些实施例中，电池200还包括电池壳体80。第一凹部31朝向电池壳体80，第一壳体30与电池壳体80连接形成第二空间81，电芯90容纳于第二空间81中，以使第一壳体30对电路板10进行防护的同时，还可配合电池壳体80对电芯90进行防护，提高第一壳体30的利用率，减少电池200零件数量，有利于实现电池200的轻量化。
在一些实施例中，包括多个堆叠设置的电芯90，多个电芯90容纳于第二空间81中并电连接于电路板组件100，电路板组件100用于同步管理多个电芯90。
请参阅图10，本申请的一个实施例还提供一种用电设备300，用电设备300包括上述任一实施例中的电池200。用电设备300可以为手机、平板电脑等电子设备，或无人机、电动汽车等移动设备。
上述电路板组件100中，第一绝缘件40设置于第一表面11且覆盖电子元器件20的至少部分，以对第一表面11上的电子元器件20进行防护。第一绝缘件40还与第一壳体30连接形成第一空间33，以对位于第一空间33中的第二表面12进行防护。第一透气件50用于平衡第一空间33内的气压和外部空间的气压。第一壳体30、第一绝缘件40和第一透气件50配合能综合提高电路板组件100的防护能力。
可以理解的是，在农用无人机电池的应用领域，通常存在以下问题，首先户外作业存在盐雾侵蚀的环境，其次在喷洒过程中农药等会以雾气形式进入到电池内部且腐蚀性极强，以及电池在搬运或者工作时意外掉入水中后内部会长期存在积水，再加上电池充放电过程中的内部高温会加剧电池内部元器件腐蚀情况。本申请提供的电路板组件100具有耐盐雾、酸碱腐蚀性能以及防水防尘能力，可降低电子元器件20受腐蚀失效的风险，从而提高农用无人机电池的使用安全性，以及提高电池的可靠性以及寿命。
另外，本领域技术人员还可在本申请精神内做其它变化，当然，这些依据本申请精神所做的变化，都应包含在本申请所公开的范围。

Claims (20)

  1. 一种电路板组件，包括电路板，所述电路板包括沿第一方向相对设置的第一表面和第二表面，所述电路板还包括设于所述第一表面的电子元器件，其特征在于：所述电路板组件还包括：
    第一壳体，包括第一凹部，所述电路板设于所述第一凹部，所述第一凹部具有第一底壁，所述第二表面朝向所述第一底壁；
    第一绝缘件，设置于所述第一表面且覆盖所述电子元器件的至少部分，所述第一绝缘件与所述第一壳体连接形成第一空间，所述第一绝缘件与所述第一空间在所述第一方向上的投影重叠；
    第一透气件，连通所述第一空间和外部空间。
  2. 如权利要求1所述的电路板组件，其特征在于：沿所述第一方向，所述第一绝缘件设置于所述第一表面上的高度大于1mm。
  3. 如权利要求1所述的电路板组件，其特征在于：所述第二表面的至少部分位于所述第一空间。
  4. 如权利要求1所述的电路板组件，其特征在于：所述第一透气件贯穿所述电路板和所述第一绝缘件。
  5. 如权利要求1所述的电路板组件，其特征在于：所述第一绝缘件通过将绝缘材料灌注于所述第一表面固化形成。
  6. 如权利要求1所述的电路板组件，其特征在于：所述第一壳体还包括第一连接件，所述第一连接件设于所述第一底壁，所述第一连接件环绕所述电路板设置且与所述电路板连接形成第一空间，所述第一绝缘件连接所述第一连接件，并与所述第一空间在所述第一方向上的投影重叠。
  7. 如权利要求6所述的电路板组件，其特征在于：所述电路板还包括第三表面，所述第三表面设置于所述第一表面和所述第二表面之间，所述第一连接件远离所述第一底壁的一端设有第一区域和第二区域，所述第一区域连接所述第二表面，所述第二区域连接所述第三表面。
  8. 如权利要求7所述的电路板组件，其特征在于：所述第二区域与所述第三表 面之间设有间隙，所述第一绝缘件填充于所述间隙。
  9. 如权利要求7所述的电路板组件，其特征在于：所述第一绝缘件接触连接所述第二区域。
  10. 如权利要求6所述的电路板组件，其特征在于：所述第一壳体还包括第二连接件，所述第二连接件至少部分位于所述第一空间内，所述电路板组件还包括第一紧固件，所述第一紧固件连接所述第二连接件和所述电路板。
  11. 如权利要求10所述的电路板组件，其特征在于：所述第二连接件连接所述第一底壁且沿所述第一方向延伸，所述第二连接件远离所述第一底壁的一端接触连接所述第二表面。
  12. 如权利要求1所述的电路板组件，其特征在于：所述第一透气件包括第一开口和第二开口，以及连通所述第一开口和所述第二开口的第一通道，所述第一开口连通所述第一空间，所述第二开口连通所述外部空间。
  13. 如权利要求12所述的电路板组件，其特征在于：所述第一透气件还包括透气膜，所述透气膜设置于所述第一通道中。
  14. 如权利要求13所述的电路板组件，其特征在于：所述电路板组件还包括贯穿所述电路板的第一连接孔，以及贯穿所述第一绝缘件的第二连接孔，所述第二连接孔连通所述第一连接孔，所述第一透气件包括第一部分和第二部分，所述第一部分至少部分设置于所述第一连接孔中，所述第二部分至少部分设置于所述第二连接孔中。
  15. 如权利要求14所述的电路板组件，其特征在于：沿所述第一方向，所述第二部分凸出所述第一表面的高度大于所述第一绝缘件设置在所述第一表面上的高度。
  16. 如权利要求14所述的电路板组件，其特征在于：所述第二部分具有朝向所述第一部分且位于所述第一通道外的第一外表面，所述第一外表面与所述第一表面接触连接。
  17. 如权利要求14所述的电路板组件，其特征在于：所述透气膜设于所述第一部分。
  18. 如权利要求17所述的电路板组件，其特征在于：所述第一部分具有朝向所 述第二部分且位于所述第一通道内的第一内表面，所述第一内表面连接所述透气膜。
  19. 一种电池，包括电芯，其特征在于：所述电池还包括如权利要求1至18中任一项所述的电路板组件，所述电芯电连接于所述电路板组件。
  20. 一种用电设备，其特征在于：所述用电设备包括如权利要求19所述的电池。
PCT/CN2023/080182 2022-03-28 2023-03-08 电路板组件、电池和用电设备 Ceased WO2023185404A1 (zh)

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