WO2020093995A1 - 电池包 - Google Patents

电池包 Download PDF

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Publication number
WO2020093995A1
WO2020093995A1 PCT/CN2019/115635 CN2019115635W WO2020093995A1 WO 2020093995 A1 WO2020093995 A1 WO 2020093995A1 CN 2019115635 W CN2019115635 W CN 2019115635W WO 2020093995 A1 WO2020093995 A1 WO 2020093995A1
Authority
WO
WIPO (PCT)
Prior art keywords
safety switch
battery pack
built
opening
cover
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/CN2019/115635
Other languages
English (en)
French (fr)
Inventor
曾敏
蒋亚东
钱木
何泽生
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 WO2020093995A1 publication Critical patent/WO2020093995A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H13/183—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/042—Explosion-proof cases
    • H01H9/045—Explosion-proof cases with interlocking mechanism between cover and operating mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H01H9/226—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts the casing containing electrical equipment other than and operated by the switch
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse
    • 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 technical field of power battery equipment, in particular to a battery pack.
  • the embodiments of the present application provide a new battery pack, which aims to improve the safety performance of the battery pack.
  • an embodiment of the present application provides a battery pack, including: a housing; a built-in circuit located in the housing; a vulnerable component located in the housing and connected in series to the built-in circuit; an opening corresponding to the vulnerable component is provided in the housing ; Safety switch, located in the housing, the on and off of the safety switch controls the on and off of the built-in circuit; the cover body, corresponding to the opening, the cover body includes the first state and the second state, in the first state the cover body cover is provided at the opening, safe The switch is closed and the built-in circuit is connected. In the second state, the cover is separated from the opening, the safety switch is opened, and the built-in circuit is opened.
  • the safety switch includes a static contact and a moving contact.
  • the moving contact includes a first position and a second position. In the first position, the moving contact is connected to the static contact, and the safety switch is closed. The two-position moving contact is separated from the static contact, and the safety switch is opened;
  • the movable contact is provided corresponding to the opening, so that when the cover moves from the second state to the first state, the movable contact can be driven to move from the second position to the first position.
  • the movable contact has elasticity, so that the movable contact moves between the first position and the second position under the effect of its own elastic force.
  • the safety switch further includes a reset component connected to the moving contact to move the moving contact between the first position and the second position through the reset deformation of the reset component.
  • one end of the reset component along the direction of its reset deformation is connected to the moving contact, and the other end is provided corresponding to the opening, so that the cover body drives the moving contact to move through the reset component;
  • one end of the reset member along the direction of its reset deformation is connected to the side of the moving contact facing away from the cover, so that the cover can directly drive the moving contact.
  • the two reset components are a first reset component and a second reset component, respectively;
  • the moving contact has a first surface and a second surface which are oppositely arranged.
  • One end of the first resetting member along the direction of resetting deformation is corresponding to the opening, the other end is connected to the first surface, and one end of the second resetting member along the direction of resetting deformation is connected to Second surface.
  • the two static contacts are spaced apart along the first direction; the movable contacts are extended and formed along the first direction to be able to be connected to the two static contacts simultaneously.
  • the safety switch further includes: a control post, an end connected to the first reset member is disposed corresponding to the opening, and a contact surface of the control post near the cover is a smooth surface.
  • the safety switch further includes a housing, the housing includes a bottom plate and an upper shell, the static contact and the second resetting component are fixed to the bottom plate, and the moving contact, the first resetting component, and the control column are sequentially arranged on the upper shell Inside, a through hole is opened on the side of the upper shell opposite to the bottom plate, so that the control column can protrude from the through hole.
  • the battery pack further includes an accommodating space for accommodating the safety switch, and the accommodating space is in communication with the opening so that the control post can extend through the opening.
  • the safety switch includes two connection heads, and a conductive layer is provided on the inner surface of the cover body, so that when the cover body is in the first state, the two connection heads are connected through the conductive layer, and the safety switch is closed; When in the second state, the two connectors are disconnected and the safety switch is disconnected.
  • the connector has elasticity
  • the safety switch further includes two elastic members, and the two elastic members are respectively disposed on the sides of the two connection heads away from the cover body, so that the elastic deformation of the elastic members enables the connection head to bear against the cover body.
  • the safety switch is connected in series to the built-in circuit
  • the battery pack also includes a control loop and a controller, a safety switch is connected in series to the control loop to control the on-off of the control loop, and the controller is configured to control the built-in circuit to communicate when the control loop is connected, and to control when the control loop is disconnected The built-in circuit is disconnected.
  • the casing of the battery pack is provided with a built-in circuit and a fragile component connected in series with the built-in circuit, and an opening corresponding to the fragile component is also opened on the case to facilitate repair of the fragile component from the opening.
  • the battery pack also includes a safety switch and a cover.
  • the on-off of the built-in circuit can be controlled by the on-off of the safety switch.
  • the battery pack can be used normally only when the cover is placed at the opening and the battery pack is well sealed, which can avoid the safety accidents caused by the failure of the seal when the battery pack is used; and in the embodiment of the present application When the cover body is detached from the opening, the built-in circuit is disconnected, which can avoid the safety accident caused by forgetting to disconnect the built-in circuit during maintenance of the vulnerable parts.
  • FIG. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present application.
  • Figure 2 is a partial schematic diagram of Figure 1;
  • FIG. 3 is a schematic diagram of a circuit structure of a battery pack according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a circuit structure of a battery pack according to another embodiment of the present application.
  • FIG. 5 is a schematic diagram of a circuit structure of a battery pack according to yet another embodiment of the present application.
  • FIG. 6 is an isometric view of a safety switch of a battery pack according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of an explosion structure of a safety switch of a battery pack according to an embodiment of the present application.
  • FIG. 8 is a side view of a safety switch of a battery pack according to an embodiment of the present application.
  • FIG. 9 is a cross-sectional view at A-A in FIG. 8.
  • FIG. 10 is a side view of a battery pack according to an embodiment of the present application.
  • FIG. 11 is a cross-sectional view at B-B in FIG. 10;
  • FIG. 12 is a partial detailed structural diagram of FIG. 11.
  • reset component 431, first reset component; 432, second reset component;
  • FIG. 1 is a battery pack provided by an embodiment of the present application
  • FIG. 2 is a partial schematic diagram of FIG. 1
  • FIG. 3 is a circuit structure of a battery pack provided by an embodiment of the present application.
  • the battery pack includes: a housing 100; a built-in circuit 200, located in the housing 100; a vulnerable part 300, located in the housing 100 and connected in series to the built-in circuit 200, and an opening corresponding to the vulnerable part 300 is provided on the housing 100 110; safety switch 400, located in the housing 100, the on and off of the safety switch 400 controls the on and off of the built-in circuit 200; the cover 500, corresponding to the opening 110 is provided, the cover 500 includes a first state and a second state, in the first The state cover 500 is placed on the opening 110, the safety switch 400 is closed, and the built-in circuit 200 is connected. In the second state, the cover 500 is separated from the opening 110, the safety switch 400 is turned off, and the built-in circuit 200 is turned off.
  • the safety switch 400 is connected in series with the built-in circuit 200.
  • the built-in circuit 200 is turned off.
  • the built-in circuit 200 is closed, the operation is simple, and the implementation is convenient.
  • the battery pack further includes a control loop 610 and a controller 600, a safety switch 400 is connected in series to the control loop 610 to control the on-off of the control loop 610, and the controller 600 is configured to connect the control loop 610
  • the control built-in circuit 200 is connected, the control built-in circuit 200 is opened when the control circuit 610 is opened.
  • the controller 600 can control the connection and disconnection of the built-in circuit 200.
  • a relay 210 is connected to the built-in circuit 200.
  • the controller 600 controls the connection and disconnection of the built-in circuit 200 by controlling the on-off of the relay 210 Disconnect and so on.
  • the setting method of controlling the on-off of the built-in circuit 200 through the on-off of the safety switch 400 is not limited to this, and will not be repeated here, as long as the built-in circuit 200 is closed when the safety switch 400 is closed, and the built-in circuit is when the safety switch 400 is open 200 can be disconnected.
  • the vulnerable part 300 may be a fragile component such as a fuse on the battery pack.
  • the built-in circuit 200 may be a power supply circuit in the battery pack.
  • the casing 100 of the battery pack is provided with a built-in circuit 200 and a fragile part 300 connected in series with the built-in circuit 200, and an opening 110 corresponding to the fragile part 300 is opened on the casing 100 to facilitate the opening 110 repairs to vulnerable parts 300.
  • the battery pack further includes a safety switch 400 and a cover 500, and the turning on and off of the built-in circuit 200 can be controlled by turning on and off the safety switch 400.
  • the cover 500 When the cover 500 is in the second state, that is, when the cover 500 is separated from the opening 110, the safety switch 400 is turned off, the built-in circuit 200 is turned off, and the battery pack cannot be used normally. Therefore, in this embodiment, the battery pack can be used normally only when the cover 500 is placed at the opening 110 and the battery pack is well sealed, which can avoid the safety accidents caused by the seal failure when the battery pack is used; and this application is implemented In the example, when the cover 500 is detached from the opening 110, the built-in circuit 200 is disconnected, which can avoid a safety accident caused by forgetting to disconnect the built-in circuit 200 when the vulnerable part 300 is maintained.
  • the safety switch 400 includes two connection heads 460 and the cover
  • the inner surface of the 500 is provided with a conductive layer 510.
  • the cover 500 is placed at the opening 110, at this time the two connectors 460 are connected through the conductive layer 510, the safety switch 400 is closed, and thus a built-in circuit 200 is connected;
  • the conductive layer 510 is provided in the cover 500 to control the opening and closing of the safety switch 400. The implementation is simple and the operation is convenient.
  • connection head 460 has elasticity.
  • the connection head 460 is made under the elastic force of the connection head 460 Can tightly abut against the cover 500 to ensure the stability of the direct contact connection between the connector 460 and the cover 500; or, the safety switch 400 further includes two elastic members (not shown in the figure), the two elastic members are provided separately On the side of the two connecting heads 460 away from the cover 500, when the cover 500 is placed at the opening 110, the elastic deformation of the elastic member can make the connecting head 460 abut against the cover 500.
  • the elastic deformation of the elastic member causes the connector 460 to abut the conductive layer 510 of the cover 500.
  • the relative position between the connector 460 and the cover 500 is more stable by the force of the elastic member, even if the battery pack is impacted, etc., it will not affect the connection between the connector 460 and the conductive layer 510, ensuring the operation of the battery pack stability.
  • the connector 460 extends out of the opening 110 under the action of the elastic member, and when the cover 500 is in the first state, the connector 460 and the cover 500 against each other.
  • the elastic member is a spring or an elastic sheet.
  • the elastic member may be connected to the connector 460 by welding or the like.
  • the safety switch 400 includes a static contact 410 and a moving contact 420, and the moving contact 420 includes a first position and a second position, in the first position
  • the movable contact 420 is connected to the stationary contact 410, and the safety switch 400 is closed.
  • the movable contact 420 is separated from the stationary contact 410, and the safety switch 400 is opened; the movable contact 420 is provided corresponding to the opening 110, so that the cover 500
  • the second state moves to the first state
  • the movable contact 420 moves from the second position to the first position.
  • the cover 500 does not have a conductive effect, and the cover 500 is only used as a driving component that drives the moving contact 420 and the stationary contact 410 to contact each other.
  • the cover 500 When the cover 500 is placed at the opening 110, the cover 500 contacts the moving contact 420, and the moving contact 420 contacts the static contact 410 under the force of the cover 500, so that the safety switch 400 is closed; when the cover When the body 500 is disengaged from the opening 110, the movable contact 420 pops up, the movable contact 420 and the stationary contact 410 are separated from each other, and the safety switch 400 is turned off.
  • the moving contact 420 moves between the first position and the second position, for example, the moving contact 420 itself has elasticity, and the moving contact 420 is between the first position and the second position under its own elastic force To move.
  • the movable contact 420 having elasticity may be an elastic sheet capable of conducting electricity, a spring, etc., which is not limited herein, as long as the moving contact 420 has elasticity and can conduct electricity.
  • the safety switch 400 further includes a reset member 430 connected to the movable contact 420 to move the movable contact 420 between the first position and the second position by the reset deformation of the reset member 430.
  • the moving contact 420 does not use its own elastic force to move between the first position and the second position, but uses the reset deformation of the reset member 430 to act on the first position and the second position The movement between them makes it unnecessary for the movable contact 420 itself to be deformed, which can reduce the loss of the movable contact 420 and improve the service life of the movable contact 420.
  • the relative position of the reset member 430 and the moving contact 420 is not limited herein.
  • the reset member 430 is located on the side of the moving contact 420 close to the cover 500.
  • the cover 500 can drive the reset member 430 to undergo a reset deformation, so that the movable contact 420 connected to the reset member 430 moves from the second position to the first position.
  • one end of the reset member 430 is connected to the side of the moving contact 420 away from the cover 500, so that the moving contact 420 can directly abut the cover 500 when the cover 500 moves from the second state to the first state
  • the cover 500 can directly drive the moving contact 420, and the moving contact 420 drives the resetting member 430 to undergo a reset deformation, so that the moving contact 420 moves from the second position to the first position.
  • the resetting component 430 is a spring or a spring.
  • the reset member 430 may be connected to the moving contact 420 by soldering or the like.
  • the number of reset components 430 is not limited here, and there may be one or more than two reset components.
  • the two reset components 430 there are two reset components 430, two reset components 430 are located on both sides of the moving contact 420, and the two reset components 430 are the first reset respectively
  • One end of the first resetting component 431 along the direction of its reset deformation corresponds to the opening 110, and the other end is connected to the second On one surface 421, one end of the second resetting member 432 in the resetting deformation direction is connected to the second surface 422.
  • the reset deformation distance of the two reset components 430 is long, so that the movable contact 420 can move a long distance, and the movable contact 420 passes through the first reset component 431 abutting on the cover 500 can also avoid the abrasion caused when the moving contact 420 directly abuts the cover 500, and improve the service life of the moving contact 420.
  • the other end of the second resetting member 432 can be fixed to the target object, so that the movable contact 420 can be elastically fixed by the second resetting member 432 to ensure that the movable contact 420 moves along a preset path.
  • the number of the movable contact 420 and the stationary contact 410 is not limited here, the movable contact 420 and the stationary contact 410 may be one respectively; or the stationary contact 410 is two, two The static contacts 410 are respectively connected to the built-in circuit 200.
  • the moving contact 420 When the moving contact 420 is moved from the second position to the first position, the moving contact 420 may be connected to the two static contacts 410 at the same time, so that the two static contacts 410 communicate with each other through the moving contact 420, and the safety switch 400 is closed , The built-in circuit 200 is turned on.
  • the two stationary contacts 410 are spaced apart along the first direction, and the movable contact 420 is extended and formed along the first direction, so that the movable contact 420 can be connected to the two stationary contacts 410 at the same time.
  • the safety switch 400 further includes a control post 440, which is disposed at the end of the first resetting member 431 away from the moving contact 420.
  • a control post 440 which is disposed at the end of the first resetting member 431 away from the moving contact 420.
  • control column 440 is cylindrical or the top of the control column 440 is spherical, so that the contact surface between the control column 440 and the cover 500 is a smooth surface, which can reduce the abrasion of the cover 500 when the cover 500 and the control column 440 are in contact with each other.
  • the safety switch 400 further includes a housing 450.
  • the static contact 410, the moving contact 420, and the reset component 430 are all disposed in the housing 450.
  • the housing 450 By providing the housing 450, other components of the safety switch 400 in the housing 100 can be protected from Environmental impact, to ensure the normal and stable operation of other components of the safety switch 400.
  • the housing 450 includes a bottom plate 451 and an upper shell 452.
  • the static contact 410 is fixed to the bottom plate 451.
  • the other end of the second resetting member 432 is also fixed to the bottom plate 451.
  • the upper case 452 extends a predetermined distance along the Z direction in the figure, and a through hole 453 is opened at the top of the upper case 452.
  • the second reset member 432, the moving contact 420, the first reset member 431, and the control column 440 are sequentially arranged in the housing 100 from bottom to top, and the control column 440 extends from the through hole 453.
  • the control post 440 can move in the through hole 453, so that when the cover 500 is placed at the opening 110, the control post 440 moves downward under the pressure of the cover 500, and the movable contact 420 moves downward and contacts the static contact 410, so that the safety switch 400 is closed.
  • the cover 500 is disengaged from the opening 110, under the resetting force of the first reset member 431 and the second reset member 432, the moving contact 420 moves upward and disconnects from the static contact 410, thereby making the safety switch 400 open open.
  • the shape of the housing 450 is not limited herein.
  • the housing 450 may be prismatic or cylindrical, as long as the housing 450 can protect the static contact 410, the moving contact 420, and the reset member 430 in the safety switch 400.
  • connection method between the bottom plate 451 and the upper shell 452 is not limited herein.
  • one of the bottom plate 451 and the upper shell 452 is provided with a hook member 454, and the other is provided with a snap member 455.
  • the cooperation between the component 455 and the hook component 454 allows the upper case 452 to be detachably connected to the bottom plate 451.
  • an accommodation space 120 for accommodating the safety switch 400 is also provided in the battery pack, and the accommodation space 120 communicates with the opening 110 so that the control column 440 It can extend from the opening 110. Therefore, when the cover 500 is placed at the opening 110, the cover 500 can abut the control column 440, and cause the reset member 430 to contract and deform under the pressure of the cover 500, so that the movable contact 420 is connected to the static contact 410, when the cover 500 is detached from the opening 110, the reset member 430 is reset and deformed and elongated, the movable contact 420 is detached from the static contact 410, and the safety switch 400 is turned off.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Security & Cryptography (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请实施例提供一种电池包，包括：壳体；内置电路，位于壳体内；易损部件，位于壳体内并串联于内置电路，壳体上开设有对应易损部件的开口；安全开关，位于壳体内，以通过安全开关的通断控制内置电路的通断；盖体，对应开口设置，盖体包括第一状态和第二状态，在第一状态盖体盖设于开口，并使得安全开关闭合，从而令内置电路连通，在第二状态盖体脱离于开口，并使得安全开关断开，从而令内置电路断开。本实施例中，盖体盖设于开口处，电池包密封性完好，电池包才能正常使用，能避免电池包使用时由于密封失效而发生的安全事故；且当盖体脱离于开口处时，内置电路断开，能够避免易损部件维护时忘记断开内置电路而发生的安全事故。

Description

电池包
相关申请的交叉引用
本申请要求享有于2018年11月09日提交的名称为“电池包”的中国专利申请第201821842354.0号的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及动力电池设备技术领域，尤其涉及一种电池包。
背景技术
目前很多电池包为了保护电路安全运行，在内置电路中增加了保险丝。在电流异常升高到一定的高度和热度的时候，保险丝自身熔断切断电流，因此保险丝属于易损件，需要经常维修。如果没有单独的维修窗口，维修时需要拆掉箱盖，箱盖上螺栓数量一般多达四五十个，拆卸时操作麻烦且费时，而且极易导致上下箱体的密封界面密封失效。
因此，亟需一种新的电池包。
申请内容
本申请实施例提供一种新的电池包，旨在提高电池包的安全性能。
一方面，本申请实施例提供了一种电池包，包括：壳体；内置电路，位于壳体内；易损部件，位于壳体内并串联于内置电路，壳体上开设有对应易损部件的开口；安全开关，位于壳体内，安全开关的通断控制内置电路的通断；盖体，对应开口设置，盖体包括第一状态和第二状态，在第一状态盖体盖设于开口，安全开关闭合，内置电路连通，在第二状态盖体脱离于开口，安全开关断开，内置电路断开。
根据本申请实施例的一个方面，安全开关包括静触头和动触头，动触 头包括第一位置和第二位置，在第一位置动触头连接于静触头，安全开关闭合，在第二位置动触头脱离于静触头，安全开关断开；
动触头对应开口设置，以使盖体由第二状态移动至第一状态时，能够驱动动触头由第二位置移动至第一位置。
根据本申请实施例的一个方面，动触头具有弹性，以使动触头在自身弹性力的作用下在第一位置和第二位置之间移动。
根据本申请实施例的一个方面，安全开关还包括复位部件，复位部件连接于动触头，以通过复位部件的复位变形使得动触头在第一位置和第二位置之间移动。
根据本申请实施例的一个方面，复位部件沿其复位变形方向的一端连接于动触头，另一端对应开口设置，以使盖体通过复位部件驱动动触头移动；
或者，复位部件沿其复位变形方向的一端连接于动触头背离盖体的一侧，以使盖体能够直接驱动动触头。
根据本申请实施例的一个方面，复位部件为两个，两个复位部件分别为第一复位部件和第二复位部件；
动触头具有相对设置的第一表面和第二表面，第一复位部件沿其复位变形方向的一端对应开口设置，另一端连接于第一表面，第二复位部件沿复位变形方向的一端连接于第二表面。
根据本申请实施例的一个方面，静触头为两个，两个静触头沿第一方向间隔设置；动触头沿第一方向延伸成型，以能够同时连接于两个静触头。
根据本申请实施例的一个方面，安全开关还包括：控制柱，连接于第一复位部件的一端对应开口设置，控制柱靠近盖体的接触面为光滑面。
根据本申请实施例的一个方面，安全开关还包括外壳，外壳包括底板和上壳，静触头和第二复位部件固定于底板，动触头、第一复位部件和控制柱依次布置于上壳内，上壳与底板相对的一侧开设有通孔，以使控制柱能够由通孔内伸出。
根据本申请实施例的一个方面，电池包还包括用于容纳安全开关的容 纳空间，容纳空间和开口连通，以使控制柱能够由开口伸出。
根据本申请实施例的一个方面，安全开关包括两个连接头，盖体内表面设置有导电层，以使盖体在第一状态时，两个连接头通过导电层连通，安全开关闭合；盖体位于第二状态时，两个连接头断开，安全开关断开。
根据本申请实施例的一个方面，连接头具有弹性；
或者，安全开关还包括两个弹性部件，两个弹性部件分别设置于两个连接头远离盖体的一侧，以通过弹性部件的弹性变形使得连接头能够抵靠于盖体。
根据本申请实施例的一个方面，安全开关串联于内置电路；
或者，电池包还包括控制回路和控制器，安全开关串联于控制回路，以控制控制回路的通断，且控制器被配置为当控制回路连通时控制内置电路连通，当控制回路断开时控制内置电路断开。
在本申请实施例中，电池包的壳体内设置有内置电路和串联于内置电路的易损部件，壳体上还开设有对应易损部件的开口，便于从开口处对易损部件进行维修。电池包还包括安全开关和盖体，通过安全开关的通断可以控制内置电路的通断。当盖体位于第一状态，即盖体盖设于开口处时，安全开关闭合，内置电路导通，电池包可以正常使用。当盖体位于第二状态，即盖体脱离于开口时，安全开关断开，内置电路断开，电池包无法正常使用。因此本实施例中，只有当盖体盖设于开口处，电池包密封性完好时，电池包才能正常使用，能够避免电池包使用时由于密封失效而发生的安全事故；且本申请实施例中当盖体脱离于开口处时，内置电路断开，能够避免易损部件维护时忘记断开内置电路而发生的安全事故。
附图说明
通过阅读以下参照附图对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显，其中，相同或相似的附图标记表示相同或相似的特征。
图1是本申请实施例的一种电池包的结构示意图；
图2是图1的局部细节示意图；
图3是本申请实施例的一种电池包的电路结构示意图；
图4是本申请又一实施例的一种电池包的电路结构示意图；
图5是本申请再一实施例的一种电池包的电路结构示意图；
图6是本申请实施例的一种电池包的安全开关的轴测图；
图7是本申请实施例的一种电池包的安全开关的爆炸结构示意图；
图8是本申请实施例的一种电池包的安全开关的侧视图；
图9是图8中A-A处的剖视图；
图10是本申请实施例的一种电池包的侧视图；
图11是图10中B-B处的剖视图；
图12是图11的局部细节结构示意图。
附图标记说明：
100、壳体；
110、开口；120、容纳空间；
200、内置电路；210、继电器；
300、易损部件；
400、安全开关；
410、静触头、
420、动触头；421、第一表面；422、第二表面；
430、复位部件；431、第一复位部件；432、第二复位部件；
440、控制柱；
450、外壳；451、底板；452、上壳；453、通孔；454、卡钩部件；455、卡扣部件；
460、连接头；
500、盖体；
510、导电层；
600、控制器；
610、控制回路。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。在附图和下面的描述中，至少部分的公知结构和技术没有被示出，以便避免对本申请造成不必要的模糊；并且，为了清晰，可能夸大了部分结构的尺寸。此外，下文中所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的实施例的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
为了更好地理解本申请，下面结合图1至图12根据本申请实施例的电池包进行详细描述。
请一并参阅图1至图3，图1为本申请实施例提供的一种电池包，图2为图1的局部细节示意图，图3为本申请实施例提供的一种电池包的电路结构示意图，电池包包括：壳体100；内置电路200，位于壳体100内；易损部件300，位于壳体100内并串联于内置电路200，壳体100上开设有对应易损部件300的开口110；安全开关400，位于壳体100内，安全开关400的通断控制内置电路200的通断；盖体500，对应开口110设置，盖体500包括第一状态和第二状态，在第一状态盖体500盖设于开口110，安全开关400闭合，内置电路200连通，在第二状态盖体500脱离于开口110，安全开关400断开，内置电路200断开。
通过安全开关400的通断控制内置电路200的通断的设置方式有多种，例如，安全开关400串联于内置电路200，当安全开关400断开时，内置电路200断开，当安全开关400闭合时，内置电路200闭合，操作简 单，实施方便。
或者，如图4所示，电池包还包括控制回路610和控制器600，安全开关400串联于控制回路610，以控制控制回路610的通断，且控制器600被配置为当控制回路610连通时控制内置电路200连通，当控制回路610断开时控制内置电路200断开。控制器600控制内置电路200连通和断开的方式有多种，如图4所示，内置电路200上连接有继电器210，控制器600通过控制继电器210的通断来控制内置电路200的连通和断开等。
通过安全开关400的通断控制内置电路200的通断的设置方式不仅限于此，在此不再一一赘述，只要当安全开关400闭合时内置电路200闭合，当安全开关400断开时内置电路200断开即可。
易损部件300可以为电池包上的保险丝等容易损坏的零部件。内置电路200可以为电池包内的供电电路。
在本申请实施例中，电池包的壳体100内设置有内置电路200和串联于内置电路200的易损部件300，壳体100上还开设有对应易损部件300的开口110，便于从开口110处对易损部件300进行维修。电池包还包括安全开关400和盖体500，通过安全开关400的通断可以控制内置电路200的通断。当盖体500位于第一状态，即盖体500盖设于开口110处时，安全开关400闭合，内置电路200导通，电池包可以正常使用。当盖体500位于第二状态，即盖体500脱离于开口110时，安全开关400断开，内置电路200断开，电池包无法正常使用。因此本实施例中，只有当盖体500盖设于开口110处，电池包密封性完好时，电池包才能正常使用，能够避免电池包使用时由于密封失效而发生的安全事故；且本申请实施例中当盖体500脱离于开口110处时，内置电路200断开，能够避免易损部件300维护时忘记断开内置电路200而发生的安全事故。
可以理解的是，通过盖体500位于第一状态和第二状态使得安全开关400闭合或断开的实施方式有多种，如图3所示，安全开关400包括两个连接头460，盖体500内表面设置有导电层510，当盖体500在第一状态时，盖体500盖设于开口110处，此时两个连接头460通过导电层510连 通，安全开关400闭合，从而内置电路200连通；当盖体500位于第二状态时，两个连接头460断开，安全开关400断开，从而内置电路200断开。本实施例通过在盖体500内设置导电层510即可控制安全开关400的开启和关闭，实施方式简单，操作方便。
为了保证连接头460和盖体500上导电层510之间连接的稳定性，连接头460具有弹性，当盖体500盖设于开口110处时，在连接头460弹性作用力下使得连接头460能够紧紧抵靠于盖体500，保证连接头460和盖体500直接接触连接的稳定性；或者，安全开关400还包括两个弹性部件(图中未示出)，两个弹性部件分别设置于两个连接头460远离盖体500的一侧，当盖体500盖设于开口110处时，可以通过弹性部件的弹性变形使得连接头460能够抵靠于盖体500。
在这些可选的实施例中，当盖体500盖设于开口110处时，弹性部件的弹性变形使得连接头460抵靠在盖体500的导电层510处。且通过弹性部件的作用力使得连接头460和盖体500之间的相对位置更加稳定，即使电池包遭受撞击等也不会影响连接头460和导电层510之间的连接，保证电池包运行的稳定性。
为了保证弹性部件能够充分发挥作用，当盖体500位于第二状态时，连接头460在弹性部件的作用下伸出开口110，当盖体500位于第一状态时，连接头460和盖体500相互抵靠。
弹性部件的设置方式有多种，例如弹性部件为弹簧或者弹片等。弹性部件可以通过焊接粘接等方式连接于连接头460。
如图4和图5所示，在另一些可选的实施例中，安全开关400包括静触头410和动触头420，动触头420包括第一位置和第二位置，在第一位置动触头420连接于静触头410，安全开关400闭合，在第二位置动触头420脱离于静触头410，安全开关400断开；动触头420对应开口110设置，以使盖体500由第二状态移动至第一状态时，动触头420由第二位置移动至第一位置。
在这些可选的实施例中，盖体500不具有导电作用，盖体500仅作为驱动动触头420和静触头410相互接触的驱动部件使用。当盖体500盖设 于开口110处时，盖体500和动触头420接触，且动触头420在盖体500的作用力下和静触头410接触，使得安全开关400闭合；当盖体500脱离于开口110处时，动触头420弹开，动触头420和静触头410相互分离，安全开关400断开。
动触头420在第一位置和第二位置之间移动的方式有多种，例如动触头420本身具有弹性，动触头420在自身弹性力的作用下在第一位置和第二位置之间移动。具有弹性的动触头420可以为能够导电的弹片、弹簧等，在此不做限定，只要动触头420具有弹性并且能够导电即可。
或者，安全开关400还包括复位部件430，复位部件430连接于动触头420，以通过复位部件430的复位变形使得动触头420在第一位置和第二位置之间移动。
在这些可选的实施例中，动触头420不是利用本身的弹性作用力在第一位置和第二位置之间移动，而是借用复位部件430的复位变形作用在第一位置和第二位置之间移动，使得动触头420本身无需发生形变，能够降低动触头420的损耗，提高动触头420的使用寿命。
复位部件430和动触头420的相对位置在此不做限定，例如，复位部件430位于动触头420靠近盖体500的一侧，当盖体500由第二状态移动至第一状态时，盖体500能够驱动复位部件430发生复位变形，从而使得连接于复位部件430的动触头420由第二位置移动至第一位置。或者，复位部件430的一端连接于动触头420背离于盖体500的一侧，使得动触头420能够直接抵靠于盖体500，当盖体500由第二状态移动至第一状态时，盖体500能够直接驱动动触头420，动触头420带动复位部件430发生复位变形，从而使得动触头420由第二位置移动至第一位置。复位部件430的设置方式有多种，例如复位部件430为弹簧或者弹片等。复位部件430可以通过焊接粘接等方式连接于动触头420。
复位部件430的个数在此不做限定，复位部件430可以为一个或两个以上。
如图6和图7所示，在一些可选的实施例中，复位部件430为两个，两个复位部件430分设于动触头420的两侧，两个复位部件430分别为第 一复位部件431和第二复位部件432；动触头420具有相对设置的第一表面421和第二表面422，第一复位部件431沿其复位变形方向的一端对应于开口110设置，另一端连接于第一表面421，第二复位部件432沿复位变形方向的一端连接于第二表面422。
在这些可选的实施例中，复位部件430有两个，两个复位部件430的复位变形距离较长，使得动触头420能够移动较长的距离，且动触头420通过第一复位部件431抵靠于盖体500还能够避免动触头420直接抵靠于盖体500时造成的磨损，提高动触头420的使用寿命。使用时，第二复位部件432的另一端可以固定于目标物体，从而能够通过第二复位部件432将动触头420弹性固定，保证动触头420沿预设路径移动。
在上述任一实施例中，动触头420和静触头410的个数在此不做限定，动触头420和静触头410可以分别为一个；或者静触头410为两个，两个静触头410分别连接于内置电路200。当动触头420由第二位置移动至第一位置时，动触头420可以同时连接于两个静触头410，从而使得两个静触头410通过动触头420连通，安全开关400闭合，内置电路200导通。
如图7所示，两个静触头410沿第一方向间隔设置，动触头420沿第一方向延伸成型，使得动触头420能够同时连接于两个静触头410。
在一些可选的实施例中，安全开关400还包括控制柱440，控制柱440设置于第一复位部件431远离动触头420的一端，当盖体500盖设在开口110处时，盖体500抵靠在控制柱440上，可以避免盖体500和第一复位部件431之间的磨损，同时可以根据实际需求改变控制柱440的形状，从而减弱控制柱440对盖体500的磨损。例如控制柱440呈圆柱形或者控制柱440的顶端呈球形，使得控制柱440和盖体500接触面为光滑面，从而能够减轻盖体500和控制柱440相互接触时对盖体500的磨损。
安全开关400还包括外壳450，上述的静触头410、动触头420和复位部件430均设置于外壳450内，通过设置外壳450，能够保护壳体100内安全开关400的其他零部件不受环境影响，保证安全开关400的其他零部件正常稳定工作。
外壳450的设置方式有多种，请一并参阅图8和图9，外壳450包括底板451和上壳452，静触头410固定于底板451，第二复位部件432的另一端也固定于底板451。上壳452沿图中的Z方向延伸预设距离，且上壳452的顶部开设有通孔453。第二复位部件432、动触头420、第一复位部件431和控制柱440由下而上依次布置于壳体100内，控制柱440由通孔453内伸出。控制柱440能够在通孔453内移动，使得当盖体500盖设于开口110处时，控制柱440在盖体500的压力下向下移动，动触头420向下移动并接触静触头410，从而使得安全开关400闭合。当盖体500脱离于开口110处时，在第一复位部件431和第二复位部件432的复位作用力下，动触头420向上移动并和静触头410断开，从而使得安全开关400断开。
外壳450的形状在此不做限定，外壳450可以为棱柱形或者圆柱形，只要外壳450能够保护安全开关400内的静触头410、动触头420和复位部件430即可。
底板451和上壳452之间的连接方式在此不做限定，例如底板451和上壳452中的一者上设置有卡钩部件454，另一者上设置有卡扣部件455，通过卡扣部件455和卡钩部件454之间的相互配合使得上壳452可拆卸地连接于底板451。
当上述的安全开关400设置于电池包时，如图10至图12所示，电池包内还设置有用于容纳安全开关400的容纳空间120，且容纳空间120和开口110连通，使得控制柱440能够由开口110处伸出。因此，当盖体500盖设于开口110处时，盖体500能够抵靠于控制柱440，并使得复位部件430在盖体500的压力作用下收缩变形，使得动触头420连接于静触头410，当盖体500脱离于开口110处时，复位部件430发生复位变形伸长，动触头420脱离于静触头410，安全开关400断开。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而 是包括落入权利要求的范围内的所有技术方案。

Claims (13)

  1. 一种电池包，其中，包括：
    壳体；
    内置电路，位于所述壳体内；
    易损部件，位于所述壳体内并串联于所述内置电路，所述壳体上开设有对应所述易损部件的开口；
    安全开关，位于所述壳体内，且所述安全开关的通断控制所述内置电路的通断；
    盖体，对应所述开口设置，所述盖体包括第一状态和第二状态，在所述第一状态所述盖体盖设于所述开口，所述安全开关闭合，所述内置电路连通，在所述第二状态所述盖体脱离于所述开口，所述安全开关断开，所述内置电路断开。
  2. 根据权利要求1所述的电池包，其中，
    所述安全开关包括静触头和动触头，所述动触头包括第一位置和第二位置，在所述第一位置所述动触头连接于所述静触头，所述安全开关闭合，在所述第二位置所述动触头脱离于所述静触头，所述安全开关断开；
    所述动触头对应所述开口设置，以使所述盖体由所述第二状态移动至所述第一状态时，能够驱动所述动触头由所述第二位置移动至所述第一位置。
  3. 根据权利要求2所述的电池包，其中，所述动触头具有弹性，以使所述动触头在自身弹性力的作用下在所述第一位置和所述第二位置之间移动。
  4. 根据权利要求2所述的电池包，其中，所述安全开关还包括复位部件，所述复位部件连接于所述动触头，以通过所述复位部件的复位变形使得所述动触头在所述第一位置和所述第二位置之间移动。
  5. 根据权利要求4所述的电池包，其中，
    所述复位部件沿其复位变形方向的一端连接于所述动触头，另一端对应于所述开口设置，以使所述盖体通过所述复位部件驱动所述动触头移动；
    或者，所述复位部件沿其复位变形方向的一端连接于所述动触头背离所述盖体的一侧，以使所述盖体能够直接驱动所述动触头移动。
  6. 根据权利要求4所述的电池包，其中，
    所述复位部件为两个，两个所述复位部件分别为第一复位部件和第二复位部件；
    所述动触头具有相对设置的第一表面和第二表面，所述第一复位部件沿其复位变形方向的一端对应所述开口设置，另一端连接于所述第一表面，所述第二复位部件沿所述复位变形方向的一端连接于所述第二表面。
  7. 根据权利要求4所述的电池包，其中，
    所述静触头为两个，沿第一方向间隔设置；
    所述动触头沿所述第一方向延伸成型，以能够同时连接于两个所述静触头。
  8. 根据权利要求6所述的电池包，其中，所述安全开关还包括：控制柱，连接于所述第一复位部件的一端并对应于所述开口设置，所述控制柱靠近所述盖体的接触面为光滑面。
  9. 根据权利要求8所述的电池包，其中，所述安全开关还包括外壳，所述外壳包括底板和上壳，所述静触头和所述第二复位部件固定于所述底板，所述动触头、所述第一复位部件和所述控制柱依次布置于所述上壳内，所述上壳与所述底板相对的一侧开设有通孔，以使所述控制柱能够由所述通孔内伸出。
  10. 根据权利8所述的电池包，其中，所述电池包还包括用于容纳所述安全开关的容纳空间，所述容纳空间和所述开口连通，以使所述控制柱能够由所述开口伸出。
  11. 根据权利要求1所述的电池包，其中，所述安全开关包括两个连接头，所述盖体内表面设置有导电层，以使所述盖体在所述第一状态时，两个所述连接头通过所述导电层连通，所述安全开关闭合；所述盖体位于所述第二状态时，两个所述连接头断开，所述安全开关断开。
  12. 根据权利要求11所述的电池包，其中，
    所述连接头具有弹性；
    或者，所述安全开关还包括两个弹性部件，两个所述弹性部件分别设置于两个所述连接头远离所述盖体的一侧，以通过所述弹性部件的弹性变形使得所述连接头能够抵靠于所述盖体。
  13. 根据权利要求1-12任一项所述的电池包，其中，
    所述安全开关串联于所述内置电路；
    或者，所述电池包还包括控制回路和控制器，所述安全开关串联于所述控制回路，以控制所述控制回路的通断，且所述控制器被配置为当所述控制回路连通时控制所述内置电路连通，当所述控制回路断开时控制所述内置电路断开。
PCT/CN2019/115635 2018-11-09 2019-11-05 电池包 Ceased WO2020093995A1 (zh)

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