WO2023155537A1 - Connecteur, batterie, et dispositif électrique - Google Patents

Connecteur, batterie, et dispositif électrique Download PDF

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Publication number
WO2023155537A1
WO2023155537A1 PCT/CN2022/135502 CN2022135502W WO2023155537A1 WO 2023155537 A1 WO2023155537 A1 WO 2023155537A1 CN 2022135502 W CN2022135502 W CN 2022135502W WO 2023155537 A1 WO2023155537 A1 WO 2023155537A1
Authority
WO
WIPO (PCT)
Prior art keywords
vertical wall
deformation
connection
connector
connection end
Prior art date
Application number
PCT/CN2022/135502
Other languages
English (en)
Chinese (zh)
Inventor
何佳
康海荣
郑陈铃
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Publication of WO2023155537A1 publication Critical patent/WO2023155537A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of electrical connection, in particular to a connector, a battery and an electrical device.
  • Connectors especially plug-in quick-change connectors, are widely used in electrical connection structures of various electrical components because of their simple operation and quick connection.
  • the battery and electrical components are usually electrically connected to each other through a connector. Therefore, improving the connection reliability of the connector has always been a subject of research in the industry.
  • One of the purposes of the embodiments of the present application is to provide a connector, a battery, and an electrical device.
  • the connector can ensure connection reliability, and when a sealing member is used between the connecting ends of the connector, it can also ensure Connector tightness.
  • a connector including a first connection end and a second connection end; the first connection end includes at least one first connection terminal and a first vertical wall surrounding the first connection terminal; the second connection end includes at least one A second connection terminal and a second vertical wall surrounding the second connection terminal; in the first connection end, at least one anti-deformation structure is formed on the outside of the first vertical wall; the connection between the first connection end and the second connection end state, the deformation preventing structure restricts the deformation of the second vertical wall in a direction away from the first vertical wall.
  • the anti-deformation structure restricts the deformation of the second vertical wall to a direction away from the first vertical wall, so that the first vertical wall and the second vertical wall can be guaranteed
  • the two vertical walls maintain a positional relationship close to each other or in close contact with each other, so that the connection is not likely to be loosened, and a good connection state between the first connection end and the second connection end can be ensured.
  • the connection reliability of the connector can be ensured.
  • the service life of the connector, especially the first connection end and the second connection end of the connector can be improved.
  • the deformation-preventing structure is located at a position with a gap relative to the outer wall surface of the first vertical wall; in the connected state, the second vertical wall at the second connection end is inserted into the gap.
  • the deformation prevention structure restricts the deformation of the second vertical wall of the second connection end from the outside to the outside, so it can ensure that the second vertical wall will not be far away from the first vertical wall, and ensure that the first vertical wall and the second vertical wall are kept together. A positional relationship that is close to each other or in close contact with each other. Moreover, since the deformation preventing structure is provided on the outside of the first vertical wall and the second vertical wall, it will not hinder the smooth progress of connection operations such as plugging and unplugging, and has a high degree of design freedom.
  • the deformation of the second vertical wall can be restricted from multiple positions and/or multiple directions, and the close or close contact positional relationship between the first vertical wall and the second vertical wall can be ensured more reliably.
  • the anti-deformation structure is provided at the opposite position across the first vertical wall and the first connecting terminal surrounded by it, so that the deformation of the second vertical wall can be restricted from the opposite two sides, and the restriction of the second vertical wall in the connected state can be ensured. force overall balance.
  • the deformation of the second vertical wall can be restricted from multiple positions and/or multiple directions, and the close or close contact positional relationship between the first vertical wall and the second vertical wall can be ensured more reliably.
  • a plurality of deformation preventing structures on the same side can be arranged at intervals with each other, a plurality of deformation preventing structures can be provided without interfering with each other, even if the connecting end of the connector is elongated as a whole, Make sure that the first vertical wall and the second vertical wall are kept close to or in close contact on the whole.
  • there is one anti-deformation structure which is arranged around the entire circumference of the first vertical wall.
  • the close or close contact state of the second vertical wall with respect to the first vertical wall can be ensured more reliably, and it is also possible to Improve the strength of the structure against deformation.
  • the first connecting end further includes a first flange protruding outward from the outer wall of the first vertical wall, and the deformation preventing structure is provided on the flange.
  • a deformation preventing structure can be provided around the first vertical wall with a simple structure, and integral molding is facilitated.
  • the deformation-preventing structure includes: a pushing portion disposed facing the first vertical wall and having a rib in contact with the second vertical wall in a connected state; and a supporting portion disposed intersecting the pushing portion .
  • the deformation preventing structure can strongly abut against the outer surface of the second vertical wall, and the outward deformation of the second vertical wall can be reliably suppressed.
  • the supporting portion is intersected with the pressing portion provided with ribs, the supporting portion is located on the outside relative to the pressing portion, so the supporting portion can support the pressing portion from the outside, further improving the prevention of
  • the deformation structure acts on the deformation limiting force of the second vertical wall through the ribs, and can ensure the strength of the deformation prevention structure, avoiding the failure of the deformation prevention structure, especially the root of the pushing part to break.
  • the deformation preventing structure is integrally formed on the flange.
  • the deformation-preventing structure having a specific shape and a specific position can be formed in a simple manner, and since it is integrally formed, the number of components will not be increased, and the time or steps required for assembly will not be increased.
  • reinforcing ribs are provided on the outer surface of the second vertical wall, and the deformation preventing structure is located at a position avoiding the reinforcing ribs in the connected state.
  • the reinforcing ribs are provided on the outer wall surface of the second vertical wall, the strength of the wall surface of the second vertical wall can be increased, and the deformation of the second vertical wall can also be limited.
  • the anti-deformation structure is located at a position away from the reinforcing rib in the connected state, the anti-deformation structure and the reinforcing rib do not interfere with each other and can exist at the same time, and the deformation of the second vertical wall can be restricted at alternate positions, further reliably restricting The deformation of the second vertical wall to the outside is prevented.
  • a sealing member in the connected state, is interposed between the first upright wall and the second upright wall.
  • sealing members such as sealing rings and sealing packings are interposed between the first vertical wall and the second vertical wall, it is possible to prevent rainwater, muddy water, etc. from entering the connector from the outside of the connector and causing poor electrical connection.
  • the second vertical wall in the connected state, can always be tightly pressed against the sealing member due to the existence of the deformation preventing structure, so there will be no poor sealing caused by the outward deformation of the second vertical wall.
  • the second connection end further includes a second flange protruding outward from the outer wall of the second vertical wall; in the connected state, the first vertical wall abuts against the second flange, and the second vertical wall abuts against the second flange. a flange.
  • connection state can be formed, and it can be ensured that the second vertical wall is always reliably inserted between the deformation preventing structure and the outer wall surface of the first vertical wall. Furthermore, when connecting the connectors, the operator can easily grasp whether or not the connection has been completed.
  • a guide post is provided on the first flange, a guide sleeve is provided on the second flange, and in a connected state, the guide sleeve is sleeved on the guide post.
  • the connector is a battery connector; in a connected state, each first connection terminal is electrically connected to each second connection terminal.
  • the connector of the present application is particularly suitable for use as a connector for battery connectors, and is particularly effective in the case of frequent replacement of batteries, etc., in which connectors need to be plugged and pulled out repeatedly.
  • a battery including the connector provided in the first aspect of the present application.
  • an electric device which includes the battery provided in the second aspect of the present application.
  • FIG. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
  • Fig. 2 is a schematic diagram showing the structure of a battery box according to an embodiment of the present application.
  • FIG. 3 is a front view schematically showing a structure of a connector in a connected state according to an embodiment of the present application.
  • FIG. 4 is a side view schematically showing a structure of a connector in a connected state according to an embodiment of the present application.
  • FIG. 5 is a perspective view schematically showing a structure of a connector in a connected state according to an embodiment of the present application.
  • FIG. 6 is a perspective view schematically showing the structure of the first connection end (female end) of the connector according to an embodiment of the present application.
  • FIG. 7 is a perspective view schematically showing the structure of the second connection end (male end) of the connector according to an embodiment of the present application.
  • FIG. 8 is an enlarged perspective view schematically showing a deformation preventing structure of a connector according to an embodiment of the present application.
  • Controller 201. Cabinet; 201a. First part; 201b. Second part; 202. Battery cell;
  • 300 connector; 310, first connection end; 311, first connection terminal; 311W, connection end of first connection terminal; 311N, connection end of first connection terminal; 312, first flange; 313, 313a, 313b, 313d, anti-deformation structure; 314a, 314b, guide column; 315, first vertical wall; 316, sealing member; 317, end edge of the first vertical wall; 318, root of the first vertical wall; 320, second connection end; 321, the second connection terminal; 321W, the terminal of the second connection terminal; 321N, the connection end of the second connection terminal; 322, the second flange; 323, 323a, 323b, reinforcing ribs; 324a, 324b, guide sleeve; 325, the second vertical wall; 327, the end edge of the second vertical wall; 328, the root of the second vertical wall; 331, the pushing part; 332, the supporting part; 333, the rib; 334, the chamfering part;
  • plug-in connectors In vehicles and the like, batteries and electrical components are usually electrically connected to each other through connectors.
  • plug-in connectors are widely used.
  • the so-called plug-in connector usually includes a plug (also called a male head or a male end) and a socket (also called a female head or a female end).
  • the plug and the socket can be plugged and matched with each other to form a connection structure. Pulling action to disengage from each other, so that the circuit between the plug side and the socket side can be switched on and off. It can be seen that for the plug-in connector, it is required to ensure reliable electrical connection even if it is repeatedly plugged and pulled out.
  • Plug-in connectors are suitable for use as battery connectors because they can be connected and disconnected by simply plugging in and pulling out.
  • the connector used to realize the electrical connection between the battery and the electrical components (including electrical connection wires) on the vehicle side it includes a first connection end that functions as a female end and a second connection end that functions as a male end.
  • the end includes a first connection terminal and a first vertical wall surrounding the first connection terminal;
  • the second connection end includes a second connection terminal and a second vertical wall surrounding the second connection terminal; formed by connecting the first connection end and the second connection end
  • the connection state of the connector Specifically, in the connected state, the second vertical wall of the second connection end is sleeved on the outer peripheral side of the first vertical wall of the first connection end.
  • the inventors of the present application found after research that, for the above-mentioned connector, the second vertical wall covering the outer peripheral side of the first vertical wall at the first connection end sometimes deforms, for example, warps outward.
  • a sealing ring is interposed between the first vertical wall of the first connection end and the second vertical wall of the second connection end.
  • the second vertical wall is more prone to deformation such as warping outward.
  • the present application provides a connector that can ensure connection reliability.
  • a sealing member is used on the connector in order to improve the sealing performance of the connection
  • the present application can also ensure the reliability of the connector. tightness.
  • the present application also provides a battery and an electrical device using the above-mentioned connector.
  • the batteries involved in this application can be any batteries, such as battery modules and battery packs, or primary batteries and secondary batteries.
  • secondary batteries include nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid (or lead storage) batteries, lithium Ion batteries, sodium-ion batteries, polymer batteries, etc.
  • This battery is suitable for a variety of electrical equipment that uses batteries, such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
  • spacecraft include aircraft, rockets, aerospace Aircraft and spacecraft, etc.; batteries are used to provide electrical energy for the above-mentioned electrical equipment.
  • FIG. 1 is a schematic structural diagram of a vehicle 1000 involved in an embodiment of the present application.
  • the vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle.
  • the vehicle 1000 is equipped with a battery 100 , and the battery 100 may be installed at the bottom, head, or tail of the vehicle 1000 .
  • the battery 100 can be used for power supply of the vehicle 1000 , for example, the battery 100 can be used as an operating power source of the vehicle 1000 .
  • the vehicle 1000 may further include a controller 200 and a motor 500 , the controller 200 is used to control the battery 100 to supply power to the motor 500 , for example, it can be used for starting the vehicle 1000 , navigating, and working power requirements during driving.
  • the battery 100 can not only be used as an operating power source for the vehicle 1000 , but can also be used as a driving power source for the vehicle 1000 , replacing or partially replacing fuel oil or natural gas to provide driving power for the vehicle 1000 .
  • FIG. 2 is a schematic diagram showing the structure of a battery 100 according to an embodiment of the present application.
  • the battery 100 includes a case 201 and a battery cell 202 , and the battery cell 202 is accommodated in the case 201 .
  • the box body 201 is used to provide accommodating space for the battery cells 202, and the box body 201 can adopt various structures.
  • the box body 201 may include a first part 201a and a second part 201b, the first part 201a and the second part 201b cover each other, the first part 201a and the second part 201b jointly define a of accommodation space.
  • the second part 201b can be a hollow structure with one end open, the first part 201a can be a plate-shaped structure, and the first part 201a covers the opening side of the second part 201b, so that the first part 201a and the second part 201b jointly define an accommodation space ;
  • the first part 201a and the second part 201b can both be hollow structures with one side open, and the open side of the first part 201a is covered by the open side of the second part 201b.
  • the box body 201 formed by the first part 201a and the second part 201b may be in various shapes, such as a cylinder, a cuboid, and the like.
  • the box body 201 is not necessary to solve the technical problem in this application, and this application is of course also applicable to the application scenario of the battery 100 without the box body 201 .
  • the battery 100 may include a plurality of battery cells 202 , and the battery cells 202 refer to the smallest unit forming a battery module or a battery pack.
  • a plurality of battery cells 202 can be connected in series and/or in parallel via electrode terminals for various applications.
  • the battery 100 involved in this application may be a battery module or a battery pack.
  • the plurality of battery cells 202 may be connected in series, in parallel or in parallel, and the mixed connection refers to a mixture of series and parallel.
  • the battery 100 in the embodiment of the present application may be directly composed of a plurality of battery cells 202 , or may be composed of a battery module first, and then the battery module is composed of the battery 100 .
  • the battery cell 202 may be a lithium-ion battery, a sodium-ion battery, or a magnesium-ion battery, which is not limited in this embodiment of the present application.
  • the battery cell 202 may be in the form of a cylinder, a flat body, a cuboid or other shapes, which is not limited in this embodiment of the present application.
  • the battery cells 202 are generally divided into three types according to packaging methods: cylindrical battery cells, square square battery cells and pouch battery cells, which is not limited in this embodiment of the present application. Cylindrical battery cells can be divided into cylindrical battery cells, polygonal prismatic battery cells, etc. according to the cross-sectional shape of the cylindrical surface.
  • the battery cell 202 generally includes an end cap, a case, and a cell assembly.
  • the end cap refers to a component that covers the opening of the casing to isolate the internal environment of the battery cell 202 from the external environment.
  • the shape of the end cap can be adapted to the shape of the housing to fit the housing.
  • the end cap can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap is not easy to deform when being squeezed and collided, so that the battery cell 202 can have higher structural strength , safety performance can also be improved.
  • Functional components such as electrode terminals can be provided on the end cap.
  • the electrode terminals can be used for electrical connection with the battery cell assembly for outputting or inputting electric energy of the battery cells 202 .
  • the material of the end cap can also be various, for example, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not particularly limited in this embodiment of the present application.
  • an insulator can also be provided inside the end cover, and the insulator can be used to isolate the electrical connection components in the housing from the end cover, so as to reduce the risk of short circuit.
  • the insulating member may be plastic, rubber or the like.
  • the housing is an assembly for matching end caps to form the internal environment of the battery cell 202 , wherein the internal environment formed can be used to accommodate the battery cell assembly, electrolyte (not shown in the figure) and other components.
  • the casing and the end cover may be independent components, and an opening may be provided on the casing, and the internal environment of the battery cell 202 is formed by making the end cover cover the opening at the opening.
  • the end cover and the housing can also be integrated.
  • the end cover and the housing can form a common connection surface before other components enter the housing.
  • the end Cover the housing.
  • the housing can be in various shapes and dimensions, such as cuboid, cylinder, hexagonal prism, etc.
  • the shape of the housing can be determined according to the specific shape and size of the battery cell assembly.
  • the housing can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which are not particularly limited in this embodiment of the present application.
  • the battery cell assembly is a component in the battery cell 202 where the electrochemical reaction occurs.
  • the casing may contain one or more cell assemblies.
  • the cell assembly is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and usually a separator is provided between the positive electrode sheet and the negative electrode sheet.
  • the parts of the positive electrode sheet and the negative electrode sheet with the active material constitute the main body of the cell assembly, and the parts of the positive electrode sheet and the negative electrode sheet without the active material respectively constitute tabs (not shown in the figure).
  • the positive pole tab and the negative pole tab can be located at one end of the main body together or at two ends of the main body respectively.
  • Electric power drawn from the above-mentioned battery 100 and output to electrical components can be connected through the connector 300 .
  • the connector 300 is also applicable to other usage scenarios, such as the connection between any two electrical components (the electrical components here include electrical connecting wires or wire harnesses), the connection between non-electrical components, and the connection between electrical components and non-electrical components. connections etc.
  • the present application uses the vehicle 1000 as an example for description, but obviously, the present application is not limited to the device using the connector 300 .
  • FIG. 3 and 4 schematically show the structure of a connector 300 in a connected state according to an embodiment of the present application, wherein FIG. 3 is taken as a front view and FIG. 4 is referred to as a side view.
  • FIG. 5 schematically shows the three-dimensional structure of the connector 300 in a connected state.
  • 6 and 7 schematically show the three-dimensional structures of the first connection end 310 (female end) and the second connection end 320 (male end) of the connector 300 respectively.
  • the connector 300 includes a first connection end 310 and a second connection end 320; the first connection end 310 includes at least one first connection terminal 311 and a first vertical wall 315 surrounding the first connection terminal 311
  • the second connection end 320 includes at least one second connection terminal 321 and a second vertical wall 325 surrounding the second connection terminal 321; in the first connection end 310, at least one anti-deformation structure 313 is formed on the outside of the first vertical wall 315; In the connection state where the first connection end 310 is connected to the second connection end 320 , the deformation preventing structure 313 restricts the second vertical wall 325 from deforming in a direction away from the first vertical wall 315 .
  • the connector 300 here is a plug-in electrical connector.
  • the connector 300 includes a first connection end 310 functioning as a female end and a second connection end 320 functioning as a male end.
  • the male end can also be used as the first connection end 310 and the female end can be used as the second connection end 320 .
  • the so-called male end and female end refer to the connecting terminal.
  • the connecting terminal of the male end is a protruding structure
  • the connecting terminal of the female end is formed to have a recess for accommodating the protruding structure. In the connected state, The protrusion-like structure is inserted into the recess to form a mating state.
  • the male end and the female end are formed of metal materials or include metal contacts between them, in the connected state, the male end and the female end can be electrically connected, thereby transmitting electric energy, electrical signals, and the like.
  • the first connection end 310 is a female end and the second connection end 320 is a male end.
  • the first connection end 310 includes a plurality of first connection terminals 311 (as an example, the number of the first connection terminals 311 is 4) and surrounds these first connection terminals 311 A first vertical wall 315 is provided for connecting the terminal 311 .
  • the second connection end 320 includes a plurality of second connection terminals 321 (for example, the number of second connection terminals 321 is four) and a second vertical wall 325 surrounding these second connection terminals 321 .
  • a flange (first flange 312 ) is provided on the outside of the first connection end 310
  • a flange (second flange 322 ) is provided on the outside of the second connection end 320 .
  • the so-called inner side and outer side are relative to the space surrounded by the first vertical wall 315 or the second vertical wall 325, and the space surrounded by the first vertical wall 315 is located inside relative to the first vertical wall 315, and the first vertical wall 315 is located on the outside relative to the space surrounded by the first vertical wall 315; similarly, the space surrounded by the second vertical wall 325 is located on the inside relative to the second vertical wall 325, and the second vertical wall 325 is surrounded by the second vertical wall 325 The space is located on the outside.
  • a plurality of first connecting terminals 311 are arranged side by side in a manner of penetrating through the first flange 312, and the first connecting terminals 311 include a terminal (terminal 311W of the first connecting terminal 311) electrically connected to the battery 100 or other electrical components, and A connection end connected to the second connection terminal 321 (connection end 311N of the first connection terminal 311 ).
  • a plurality of second connection terminals 321 are arranged side by side in a manner of penetrating the second flange 322, and the second connection terminals 321 include a terminal (terminal 321W of the second connection terminal 321) electrically connected to the battery 100 or other electrical components, and A connection end connected to the first connection terminal 311 (connection end 321N of the second connection terminal 321 ).
  • connection terminal 311N of the first connection terminal 311 is connected to the connection terminal 321N of the second connection terminal 321 .
  • the connection end 311N of the first connection terminal 311 can be configured to have a recess in the center; the connection end 321N of the second connection terminal 321 can be configured to have a columnar protrusion in the center.
  • the stud protrusions are inserted into the recesses to form an electrical conduction state.
  • connection end 311N of the first connection terminal 311 and the connection end 321N of the second connection terminal 321 the above is only an example, and can be properly designed according to specific situations.
  • the first vertical wall 315 and the second vertical wall 325 are nested in such a manner that one is located inside and the other is located outside.
  • the connection state in which the second vertical wall 325 is nested outside the first vertical wall 315 is taken as an example for illustration.
  • the structure in the space enclosed by the first vertical wall 315 and the structure in the space enclosed by the second vertical wall 325 as long as the nested connection between the first vertical wall 315 and the second vertical wall 325 can be realized, it can be specifically designed according to the situation. There is no limit.
  • the shapes of the first upright wall 315 and the second upright wall 325 in order to be able to perform nested connection, they have similar shapes, but the one nested outside has a slightly larger outer dimension than the other.
  • the inner contour dimension of the second vertical wall 325 in the connected state, if the second vertical wall 325 is located outside the first vertical wall 315 , the inner contour dimension of the second vertical wall 325 is slightly larger than the outer contour dimension of the first vertical wall 315 . That is, in the connected state, the inner wall surface of the second upright wall 325 faces the outer wall surface of the first upright wall 315 with a slight gap, or is in close ground contact with each other.
  • the shape of the contour surrounded by the first vertical wall 315 and the second vertical wall 325 can be specifically designed according to the situation, for example, a circle, an ellipse, an oblong shape, etc. can be enumerated.
  • the elongated first vertical wall 315 and the second vertical wall 325 are taken as an example for illustration.
  • At least one deformation preventing structure 313 is formed on the outer side of the first vertical wall 315 .
  • the deformation preventing structure 313 restricts the second vertical wall 325 from deforming in a direction away from the first vertical wall 315 .
  • at least two deformation preventing structures 313 are provided, and they limit the deformation of the second vertical wall 325 on the outer side of the second vertical wall 325 .
  • FIG. 3 for example, at least two deformation preventing structures 313 are provided, and they limit the deformation of the second vertical wall 325 on the outer side of the second vertical wall 325 .
  • At least two deformation preventing structures 313a and 313b are provided, wherein the deformation preventing structure 313a restrains the second vertical wall 325 from the left side (left side in the figure). Deformation of the vertical wall 325 , the deformation preventing structure 313 b suppresses the deformation of the second vertical wall 325 from the right side of the second vertical wall 325 (the right side in the figure).
  • the number of the deformation preventing structures 313 is not particularly limited, as long as the deformation of the second vertical wall 325 can be prevented, it can be appropriately set according to the situation.
  • the anti-deformation structure 313 since the anti-deformation structure 313 is provided, and in the connection state where the first connection end 310 is connected to the second connection end 320 , the anti-deformation structure 313 restricts the second vertical wall 325 from deforming in a direction away from the first vertical wall 315 Therefore, it can be ensured that the first vertical wall 315 and the second vertical wall 325 maintain a positional relationship close to each other or in close contact with each other, and the situation of loose connection is not easy to occur, and a good connection state between the first connection end 310 and the second connection end 320 can be ensured .
  • connection reliability of the connector 300 can be ensured.
  • service life of the connector 300 especially the first connection end 310 and the second connection end 320 of the connector 300 can be improved.
  • a guide column 314 a, 314 b is respectively provided on the first flange 312 .
  • a guide column 314 a, 314 b is respectively provided on the first flange 312 .
  • a guide sleeve 324a, 324b is respectively provided on the second flange 322 .
  • the guide sleeves 324a, 324b are sleeved on the guide posts 314a, 314b, respectively.
  • the anti-deformation structure 313 is located at a position with a gap relative to the outer surface of the first vertical wall 315; in the connected state, the second vertical wall 325 of the second connection end 320 is inserted into the gap.
  • a gap capable of accommodating the second vertical wall 325 is left between the deformation preventing structure 313 and the first vertical wall 315 .
  • the size of the gap may be the minimum distance between the outer contour of the deformation preventing structure 313 near the first vertical wall 315 and the outer wall surface of the first vertical wall 315 .
  • the size of the gap may be the same as the wall thickness of the second vertical wall 325 , or slightly larger than the wall thickness of the second vertical wall 325 . In this way, due to the existence of the deformation preventing structure 313 , the second vertical wall 325 cannot be deformed in a direction away from the first vertical wall 315 , or the deformation preventing structure 313 restricts further deformation after slight deformation.
  • the deformation preventing structure 313 restricts the deformation of the second vertical wall 325 of the second connection end 320 from the outside to the outside, so it can be ensured that the second vertical wall 325 will not be far away from the first vertical wall 315, and the first vertical wall 325 can be guaranteed.
  • the standing wall 315 and the second standing wall 325 maintain a positional relationship close to each other or in close contact with each other.
  • the deformation preventing structure 313 is provided on the outside of the first vertical wall 315 and the second vertical wall 325 , it will not hinder the smooth progress of connection operations such as plugging and unplugging, and has a high degree of design freedom.
  • two anti-deformation structures 313 are respectively provided on the left and right sides of the first vertical wall 315 surrounding the first connection terminal 311 (the left and right sides in the figure), and the left side It is denoted as the deformation preventing structure 313a, and the one located on the right side is denoted as the deformation preventing structure 313b.
  • the anti-deformation structure 313a and the anti-deformation structure 313b are located at positions facing each other along the left-right direction in FIG. 4 , of course, they may not be located at positions facing each other, but may be located at positions staggered from each other.
  • the deformation of the second vertical wall 325 can be restricted from multiple positions and/or multiple directions, and the close or close contact between the first vertical wall 315 and the second vertical wall 325 can be more reliably ensured. location relationship.
  • the anti-deformation structure 313 is provided at the opposite position across the first vertical wall 315 and the first connecting terminal 311 surrounded by it, which can limit the deformation of the second vertical wall 325 from the opposite sides, and can ensure the second connection in the connected state.
  • the limiting force on the vertical wall 325 is overall balanced.
  • deformation-preventing structures 313 are provided on the left side or the right side (the left side or the right side in the figure) of the first vertical wall 315 surrounding the first connecting terminal 311, respectively Denote as deformation preventing structure 313b and deformation preventing structure 313d.
  • the deformation preventing structure 313b and the deformation preventing structure 313d are arranged at a certain distance from each other. There is no particular limitation on the distance, as long as it can provide a suitable deformation-limiting force, it can be specifically set according to the situation.
  • other structures that need to be avoided may also be provided at intervals.
  • there may be four anti-deformation structures 313 and two are respectively provided on the left side and the right side of the first connection end 310 in FIG. 4 .
  • the four deformation preventing structures 313 are shown in FIG. 3 .
  • the two deformation-preventing structures 313 (not shown) on the left side of the first connection end 310 and the two deformation-preventing structures 313b and 313d on the right side of the first connection end 310 can be respectively arranged facing each other. , can also be set in a staggered manner.
  • the deformation of the second vertical wall 325 can be restricted from multiple positions and/or multiple directions, and the close or close contact between the first vertical wall 315 and the second vertical wall 325 can be more reliably ensured. location relationship.
  • a plurality of deformation preventing structures 313 on the same side can be arranged at intervals with each other, therefore, a plurality of deformation preventing structures 313 can be arranged without interfering with each other, even if the connecting end of the connector 300 is elongated as a whole. , it can also ensure that the first vertical wall 315 and the second vertical wall 325 are kept close to or in close contact on the whole.
  • anti-deformation structure 313 which is arranged around the entire circumference of the first vertical wall 315 .
  • annular deformation-preventing structure 313 is disposed around the first vertical wall 315 at a position separated by a certain gap on the outer side of the first vertical wall 315 .
  • the second upright wall 325 is inserted into the gap between the deformation preventing structure 313 and the first upright wall 315 all around.
  • the depth of the second vertical wall 325 inserted into the gap between the first vertical wall 315 and the deformation preventing structure 313 (the overlapping length of the second vertical wall 325 and the deformation preventing structure 313 in the insertion and extraction direction), as long as the deformation preventing structure can be realized
  • the deformation limiting function of 313 on the second vertical wall 325 can be appropriately set.
  • the first connecting end 310 further includes a first flange 312 protruding outward from the outer wall of the first vertical wall 315 , and the deformation preventing structure 313 is provided on the first flange. edge312.
  • the first flange 312 may be integrally formed with the first vertical wall 315 .
  • the first flange 312 can be in the shape of a flat plate as a whole, and the first vertical wall 315 is generally vertically erected relative to the flat first flange 312 , and is connected to the first flange 312 at the root 318 of the first vertical wall 315 . connected as one.
  • substantially vertical means substantially vertical, and a certain degree of error or deviation is allowed within the range that does not affect the basic function of the member.
  • the anti-deformation structure 313 and the first vertical wall 315 are disposed on the same surface of the first flange 312 .
  • the deformation preventing structure 313 can be provided around the first vertical wall 315 with a simple structure, and the integral molding is facilitated.
  • the anti-deformation structure 313 includes a pushing portion 331 and a supporting portion 332 , the pushing portion 331 is disposed facing the first vertical wall 315 and has a The rib 333 in contact with the second vertical wall 325 in the connected state; the supporting portion 332 is arranged to intersect with the pushing portion 331 .
  • the deformation preventing structure 313 may have a pressing portion 331 and a supporting portion 332 .
  • the pressing portion 331 is plate-shaped in the longitudinal direction of the first vertical wall 315 (for example, the left-right direction in FIG. 3 ), and the top of the plate-shaped portion has a chamfered portion 334 .
  • a rib 333 formed of a raised portion that protrudes toward the first vertical wall 315 and extends along the longitudinal direction of the first vertical wall 315 .
  • the rib 333 is formed near one end of the pressing portion 331 and is connected to the chamfered portion 334 .
  • the rib 333 can also be set on the lower half, and the rib 333 can also be set on the central position.
  • the entire surface of the portion 331 facing the side of the first vertical wall 315 is provided in a convex shape as a bead 333 .
  • the outline shape of the rib 333 can be a circular arc bulging toward the first vertical wall 315 , a triangle protruding toward the first vertical wall 315 , a trapezoid, or a polygon.
  • the contact portion between the convex rib 333 and the second vertical wall 325 can be an arc-shaped vertex, a triangle or polygon vertex, or a trapezoid or polygon. side.
  • the ribs 333 are elongated, those skilled in the art can understand that when the ribs 333 are in point contact with the second vertical wall 325 in FIG.
  • the second upright wall 325 is in line contact; in FIG. 4 , when the rib 333 is in line contact with the second upright wall 325 , overall, the rib 333 is in surface contact with the second upright wall 325 .
  • the supporting portion 332 is disposed on the back side of the pressing side of the pressing portion 331 (ie, the outer surface of the pressing portion 331 ), and is integrally connected with the pressing portion 331 .
  • the supporting portion 332 is perpendicular to the outer surface of the pressing portion 331 .
  • the shape of the supporting portion 332 when viewed from the angle shown in FIG. 4 , it may be rectangular, or substantially right-angled triangle (one right-angled side is connected to the pushing portion 331 ).
  • the supporting portion 332 has a certain thickness in the left-right direction in FIG. 3 , and the thickness is consistent in the up-down direction in FIG. 3 (that is, the thickness is uniform).
  • the pressing portion 331 can exert sufficient deformation inhibiting force on the second vertical wall 325 under the strong support of the supporting portion 332 .
  • the installation connection surface of the deformation preventing structure 313 and the first flange 312 is in a "T" shape, the connection strength between the deformation preventing structure 313 and the first flange 312 can be improved.
  • the deformation preventing structure 313 can strongly abut against the outer surface of the second vertical wall 325 , and the outward deformation of the second vertical wall 325 can be reliably suppressed.
  • the supporting portion 332 is intersected with the pressing portion 331 provided with the raised rib 333, the supporting portion 332 is located on the outside with respect to the pressing portion 331, so the supporting portion 332 can support the pressing portion from the outside.
  • the deformation preventing structure 313 is integrally formed on the first flange 312 .
  • first connecting end 310 may be integrally formed, for example, may be integrally formed using materials such as resin.
  • portion that functions to conduct electricity is formed of metal.
  • second connection end 320 can also be integrally formed, for example, it can be formed integrally with materials such as resin.
  • the portion that functions to conduct electricity is formed of metal.
  • the anti-deformation structure 313 and even the entire first connecting end 310 with a specific shape and at a specific position can be formed in a simple manner. Moreover, since it is integrally formed, the number of parts will not be increased, and the cost of assembly will not be increased. It takes time or steps. In addition, the resin integral molding also helps to ensure the insulation of the first vertical wall 315 of the first connection end 310 and its outer members.
  • reinforcing ribs 323 are provided on the outer surface of the second vertical wall 325 , and the deformation preventing structure 313 is located at a position avoiding the reinforcing ribs 323 in the connected state.
  • the reinforcing rib 323 is provided on the outer wall surface of the second vertical wall 325 so as to extend along the height direction of the second vertical wall 325 (in FIG. 3 to FIG. 5 , the vertical direction).
  • the reinforcing rib 323 is plate-shaped and generally trapezoidal in shape. As shown in FIG. 4 , the reinforcing rib 323 is formed such that the closer it is to the first flange 312 of the first connection end 310 , the smaller its standing height toward the outside becomes.
  • the number of reinforcing ribs 323 is not particularly limited to each other, and can be set as necessary.
  • two reinforcing ribs 323 are provided on the same side of the second vertical wall 325 .
  • reinforcing ribs 323 a and 323 b are respectively provided on the left and right sides of the second vertical wall 325 .
  • the reinforcing rib 323 is provided on the outer surface of the second vertical wall 325 , the strength of the wall surface of the second vertical wall 325 can be increased, and the deformation of the second vertical wall 325 can also be limited. That is, the reinforcing rib 323 also has a deformation preventing function, and can function as a second deformation preventing structure.
  • the deformation preventing structure 313 is provided at a position not to interfere with the reinforcing rib 323 .
  • a deformation preventing structure 313 b and a deformation preventing structure 313 d are provided so as to sandwich two reinforcing ribs 323 .
  • the anti-deformation structure 313 Since the anti-deformation structure 313 is located at a position avoiding the reinforcing rib 323 in the connected state, the anti-deformation structure 313 and the reinforcing rib 323 do not interfere with each other and can exist at the same time, and can limit the deformation of the second vertical wall 325 at alternate positions, further The outward deformation of the second vertical wall 325 is reliably restricted.
  • a sealing member 316 is interposed between the first vertical wall 315 and the second vertical wall 325 .
  • the sealing member 316 may be, but not limited to, a sealing ring, a sealing gasket, a sealing packing, etc., and a sealing member 316 of a known material such as rubber may be used.
  • the sealing member 316 can be sleeved on the outer periphery of the first vertical wall 315 as shown in FIG. 6 , or can be disposed on the inner periphery of the second vertical wall 325 (for example, in a groove on the inner periphery).
  • the position of the sealing member 316 on the first vertical wall 315 is not particularly limited, and for example, as shown in FIG. 6 , it may be provided at a position close to the end edge 317 of the first vertical wall 315 .
  • the first vertical wall 315 and the second vertical wall 325 are sandwiched between the sealing member 316 such as a sealing ring, sealing packing, etc., it is possible to prevent rainwater, muddy water, etc. from entering the connector 300 from the outside of the connector 300 and causing A condition of poor electrical connections.
  • the second vertical wall 325 can always be tightly pressed against the sealing member 316 due to the existence of the deformation preventing structure 313, so there will be no poor sealing caused by the outward deformation of the second vertical wall 325 .
  • the second connecting end 320 further includes a second flange 322 extending outward from the outer wall of the second vertical wall 325; in the connected state, the first vertical wall 315 abuts against the second flange 322, and the second The vertical wall 325 abuts against the first flange 312 .
  • the second flange 322 may be integrally formed with the second vertical wall 325 .
  • the second flange 322 can be in the shape of a flat plate as a whole, and the second vertical wall 325 is generally vertically erected relative to the flat second flange 322 , and is connected to the second flange 322 at the root 328 of the second vertical wall 325 . connected as one.
  • the reinforcing rib 323 extends from the root portion 328 of the second vertical wall 325 toward the edge 327 of the second vertical wall 325 .
  • the connector 300 is a battery connector; in a connected state, each first connection terminal 311 is electrically connected to each second connection terminal 321 .
  • the connector 300 of the present application is particularly suitable for use as a connector for battery connectors, for example, it is particularly effective in the case of frequent replacement of the battery 100 and the need for repeated plugging and unplugging of connectors.
  • a second aspect of the present application provides a battery 100 including the connector 300 provided in the first aspect of the present application.
  • the battery 100 can be provided with convenient connection and high connection reliability, and is suitable for scenarios such as frequent replacement; moreover, the situation that the battery 100 cannot be used due to poor electrical connection at the connector 300 can be reduced.
  • a third aspect of the present application provides an electric device, which includes the battery 100 provided in the second aspect of the present application.
  • the connector 300 includes a first connection end 310 as a female end and a second connection end 320 as a male end, and at least one deformation preventing structure 313 .
  • the second vertical wall 325 of the second connection end 320 is pushed against by the anti-deformation structure 313 located on the outside, therefore, when the frame opening of the second connection end 320 of the male end (the end edge 327 of the second vertical wall 325 When the deformation is about to occur, the deformation preventing structure 313 provides a force opposite to the deformation direction from at least one position, or the entire circle around the second vertical wall 325 to limit its deformation.
  • connection reliability and connection sealing performance of the connector 300 can be ensured, and poor connection and the like are less likely to occur.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Connecteur (300) comprenant une première extrémité de connexion (310) et une seconde extrémité de connexion (320). La première extrémité de connexion (310) comprend au moins une première borne de connexion (311), et une première paroi verticale (315) entourant la première borne de connexion (311) ; la seconde extrémité de connexion (320) comprend au moins une seconde borne de connexion (321), et une seconde paroi verticale (325) entourant la seconde borne de connexion (321) ; dans la première extrémité de connexion (310), au moins une structure anti-déformation (313) est formée sur le côté externe de la première paroi verticale (315) ; dans un état dans lequel la première extrémité de connexion (310) est connectée à la seconde extrémité de connexion (320), la structure anti-déformation (313) empêche la seconde paroi verticale (325) de se déformer dans une direction la plus éloignée de la première paroi verticale (315). La structure de connecteur peut garantir une fiabilité de connexion. En outre, une batterie (100) et un dispositif électrique sont décrits.
PCT/CN2022/135502 2022-02-16 2022-11-30 Connecteur, batterie, et dispositif électrique WO2023155537A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202220311132.6 2022-02-16
CN202220311132.6U CN216903471U (zh) 2022-02-16 2022-02-16 连接器、电池和用电装置

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WO2023155537A1 true WO2023155537A1 (fr) 2023-08-24

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Publication number Priority date Publication date Assignee Title
CN216903471U (zh) * 2022-02-16 2022-07-05 宁德时代新能源科技股份有限公司 连接器、电池和用电装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007280702A (ja) * 2006-04-05 2007-10-25 Yokowo Co Ltd コネクタ
CN103236608A (zh) * 2013-03-28 2013-08-07 北京小米科技有限责任公司 一种卡座及移动终端
CN109980403A (zh) * 2017-12-07 2019-07-05 Aptiv技术有限公司 电插头连接器
CN214411661U (zh) * 2020-12-28 2021-10-15 深圳市正浩创新科技股份有限公司 连接器组件及其插头连接器、插座连接器
CN216903471U (zh) * 2022-02-16 2022-07-05 宁德时代新能源科技股份有限公司 连接器、电池和用电装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007280702A (ja) * 2006-04-05 2007-10-25 Yokowo Co Ltd コネクタ
CN103236608A (zh) * 2013-03-28 2013-08-07 北京小米科技有限责任公司 一种卡座及移动终端
CN109980403A (zh) * 2017-12-07 2019-07-05 Aptiv技术有限公司 电插头连接器
CN214411661U (zh) * 2020-12-28 2021-10-15 深圳市正浩创新科技股份有限公司 连接器组件及其插头连接器、插座连接器
CN216903471U (zh) * 2022-02-16 2022-07-05 宁德时代新能源科技股份有限公司 连接器、电池和用电装置

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