WO2021233399A1 - 一种断路器及配电系统 - Google Patents

一种断路器及配电系统 Download PDF

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Publication number
WO2021233399A1
WO2021233399A1 PCT/CN2021/095001 CN2021095001W WO2021233399A1 WO 2021233399 A1 WO2021233399 A1 WO 2021233399A1 CN 2021095001 W CN2021095001 W CN 2021095001W WO 2021233399 A1 WO2021233399 A1 WO 2021233399A1
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WO
WIPO (PCT)
Prior art keywords
plate
metal
circuit breaker
buckle
housing
Prior art date
Application number
PCT/CN2021/095001
Other languages
English (en)
French (fr)
Inventor
闫广超
曹国庆
肖志明
王佐锋
王科颖
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21809515.6A priority Critical patent/EP4152357A4/en
Publication of WO2021233399A1 publication Critical patent/WO2021233399A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H01H71/082—Connections between juxtaposed circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing

Definitions

  • This application relates to the technical field of electrical equipment, in particular to a circuit breaker and a power distribution system.
  • circuit breakers can effectively improve the safety and reliable operation of electrical equipment.
  • the user can operate the button (not shown in the figure) located outside the circuit breaker to drive the linkage mechanism 01 to move, and then manipulate the moving contact plate 02 and the static contact plate 03 to close or open.
  • 1a shows the closed state
  • Figure 1b shows the open state.
  • the circuit breaker when the switch is switched from the closed state to the open state, the circuit breaker is switched from current to no current during the transition process between the movable contact plate 02 and the static contact plate 03.
  • the arc sprayed toward the top surface of the circuit breaker (the dotted line with arrow shown in Figure 1b indicates the arc), the arcing distance is generally more than 35mm, that is to say, the moving contact 05 and the static contact are in contact with each other. No other components can be installed within 35mm of 04.
  • the embodiments of the present application provide a circuit breaker and a power distribution system, the main purpose of which is to provide a circuit breaker with an arc spraying direction toward the back of the circuit breaker to reduce the height dimension.
  • the present application provides a circuit breaker, which includes a housing, a linkage mechanism, a movable contact plate and a static contact plate arranged in the housing, and the linkage mechanism is connected with the movable contact plate to control the movable contact plate and the static contact plate.
  • the contact plate is switched between the closed state and the open state.
  • the linkage mechanism includes: a fixed plate, a crank arm, a jumper plate assembly and a steering plate; the crank arm is hinged with the fixed plate, the jumper plate assembly is hinged with the crank arm, and the steering plate
  • the board is respectively hinged with the jumper board assembly, hinged with the movable contact board, and hinged with the fixed board through the rotation axis, the hinge point of the steering board and the jumper board assembly, the hinge point with the movable contact board, and the hinge point with the fixed board It is arranged in a triangle; the movable contact plate has strip holes, the contact surface of the movable contact plate and the static contact plate is the contact plane, the extension direction of the strip hole is not parallel to the contact plane, the rotation axis passes through the strip hole, and the movable contact plate
  • the touch panel can move relative to the rotating shaft along the extending direction of the strip hole.
  • the linkage mechanism includes a fixed plate, a crank arm, a jumper plate assembly, and a steering plate
  • a steering plate is added.
  • the steering plate is combined with the jumper plate assembly and the moving contact plate.
  • the plate and the fixed plate are hinged, and the hinge points of the steering plate and the jumper plate assembly, the hinge points with the movable contact plate, and the hinge points with the fixed plate are arranged in a triangle shape, and the movable contact plate is provided with a non-parallel contact plane
  • the strip-shaped hole in this way, can limit the angle of rotation of the movable touch panel and the direction of rotation.
  • the linkage mechanism When the linkage mechanism is arranged along the length of the circuit breaker, that is, when the moving contact plate and the static contact plate are close to the rear of the housing, the extending direction of the strip hole is not parallel to the contact plane to make the moving contact
  • the movable contact When opening the gate with the static contact, through the limit of the strip hole, the movable contact will not rotate to the top of the shell, but toward the back of the shell, and the gas generated by the arc will also spray when the gate is opened.
  • this application achieves the purpose of arc spraying towards the back of the circuit breaker by adding a steering plate. Compared with arc spraying towards the top of the circuit breaker, the size of the circuit breaker in the height direction will be reduced correspondingly.
  • the rear of the circuit breaker Do not connect with other equipment, so that the exhaust gas can also prevent damage to the equipment adjacent to the circuit breaker.
  • the extending direction of the strip-shaped hole is perpendicular to the contact plane.
  • the steering plate includes: a first plate and a second plate opposite to each other, the first plate and the second plate are connected by a connecting plate; the first plate and the second plate are both provided with triangular layouts
  • the first hinge hole, the second hinge hole and the third hinge hole, the rotation axis passes through the first hinge hole on the first plate and the first hinge hole on the second plate, and passes through the strip on the movable contact plate
  • the second hinge hole is provided with a first hinge shaft and is hinged with the jumper plate assembly
  • the third hinge hole is provided with a second hinge shaft and is hinged with the movable contact plate.
  • the part of the movable contact plate that is hinged to the steering plate is located between the opposite first plate and the second plate, and the part of the jumper plate assembly that is hinged to the steering plate is located on the opposite first plate. And the second board.
  • the housing has an opposite bottom surface and a top surface, a front side and a rear side opposite to each other between the bottom surface and the top surface, a crank arm, a jumper board assembly, a steering board, and a movable contact board. It is arranged from the front side to the rear side.
  • the arc generated when the moving contact plate and the static contact plate are opened can be sprayed to the rear side.
  • the rear side is provided with vent holes, which are used to connect the moving contact plate and the static contact plate. When the plate is opened, the gas generated by the arc is discharged.
  • the arm, jumper plate assembly, steering plate and moving contact plate By arranging the arm, jumper plate assembly, steering plate and moving contact plate from the front side to the rear side, the arc generated by the moving contact plate and the static contact plate during opening will be sprayed toward the rear side of the housing , And discharge the gas generated by the arc through the vent hole opened on the back side of the shell.
  • the first aspect further includes an arc extinguishing grid and an arc striking plate.
  • the arc extinguishing grid is arranged in the housing at a position corresponding to the movable contact plate, and is close to the rear side of the housing; the arc striking plate is arranged On the side close to the bottom surface of the arc extinguishing grid, the arc ignition plate includes a flat plate section and a bending section. The flat plate section is installed on the static contact plate, and the bending section is bent in the direction of the arc extinguishing grid.
  • the arc pilot plate includes a flat plate section and a bending section
  • the bending section is bent in the direction of the arc extinguishing grid, so that the arc splashing on the bending section can be reflected to the arc extinguishing grid after the bending section to block
  • the first aspect further includes an arc absorbing plate, which is arranged on the side of the arc extinguishing grid near the top surface, the arc absorbing plate is made of metal material, and the arc absorbing plate is provided with a filter hole. Filter the charged particles in the arc through the filter hole on the arc absorption plate to prevent the charged particles from being discharged from the exhaust hole and affect other equipment.
  • the arc absorbing plate includes a first filter plate and a second filter plate that are relatively folded, and the meshes on the first filter plate and the meshes on the second filter plate are staggered with each other. That is, the mesh on the first filter plate is opposite to the non-mesh on the second filter plate, and the non-mesh on the first filter plate is opposite to the mesh on the second filter plate.
  • the first aspect further includes: a buckle that can move between the extended position and the retracted position relative to the housing in the first direction.
  • the buckle When the buckle is in the extended position, the buckle is located on the side of the housing. It is external and used to be connected to the power distribution unit.
  • the buckle When the buckle is in the retracted position, the buckle is located inside the casing to separate from the power distribution unit; the pulling member can move in the second direction relative to the casing, and the second The direction is perpendicular to the first direction.
  • the pulling member has opposite first and second ends. The first end is located in the housing and the second end is located outside the housing.
  • the first elastic member can apply elastic force to the pulling member, so that the first end abuts against the buckle to align the card
  • the buckle exerts a thrust toward the outside of the housing;
  • the second elastic member can apply elastic force to the buckle.
  • the buckle Under the pulling force of the first elastic member on the pulling member, so that the pulling member exerts a pushing force on the buckle, the buckle is in the extended position, that is, the buckle can be connected with the power distribution unit, when it is pulled toward the outside of the housing
  • the pushing force of the pulling member on the buckle disappears, and the buckle will move to the retracted position.
  • the buckle Under the action of the second elastic member, the buckle can be restored from the retracted position to the extended position for the next time. Therefore, the circuit breaker provided in the embodiments of the present application can be plugged and unplugged with the power distribution unit. Compared with the fixing method of bolts and other connecting parts, it is convenient to disassemble and assemble, especially convenient for on-site replacement and maintenance of the circuit breaker. Device.
  • the buckle includes a first buckle and a second buckle, the first buckle and the second buckle are arranged on both sides of the pulling member oppositely, and the first buckle is located in the housing One end of the second buckle and one end of the second buckle located in the housing are connected by a second elastic member. Adopting the relatively arranged first buckle and the second buckle can make the connection between the circuit breaker and the power distribution unit firmer.
  • a jack is provided on the housing, and the jack is used to plug into the card board of the power distribution unit, and a third elastic member is arranged in the jack.
  • the elastic shape of the third elastic member The deformation enables the card board to be clamped in the socket.
  • the housing is provided with a first inlet end and a second inlet end, a first outlet end and a second outlet end, a first adapter end and a second adapter end, and a first One transfer end is used to electrically connect to the first transfer end of another circuit breaker through the first transfer metal sheet, and the second transfer end is used to connect the second transfer end of the other circuit breaker through the second transfer metal sheet.
  • the terminals are electrically connected; the housing is provided with a first metal busbar and a second metal busbar, the first metal busbar is electrically connected to the first incoming wire end, the first adapter end and the local output terminal located in the housing, and the second The metal bus board is electrically connected with the second wire-in end, the second transfer end and the static contact board.
  • the first metal busbar is electrically connected to the first wire-in end, the first transfer end and the local output terminal located in the housing, and the second metal busbar is electrically connected to the second wire-in end, the second transfer end and the static contact ,
  • the first transfer end can be directly connected to the first transfer metal sheet
  • the first transfer terminal on another circuit breaker (called the second circuit breaker) is electrically connected, and the second transfer terminal can be directly connected to the second transfer terminal on the second circuit breaker through the second transfer metal sheet. Connect to shunt the current to the second circuit breaker to realize the shunt function.
  • the circuit breaker is connected to each circuit breaker through the copper bus bar of different structure to realize the current distribution.
  • the connector is used to realize the shunt.
  • the second is that it does not need to connect the connector and each circuit breaker and the different structure of the transfer copper bar, but use the first transfer metal sheet and the second transfer metal sheet to connect every two The circuit breaker realizes the shunt.
  • the first inlet end and the second inlet end, the first switching end and the second switching end are all arranged on the top surface, and the first outlet end and the second outlet end are arranged On the front side.
  • the power distribution unit is close to the top of the network cabinet, and the first incoming wire and the second incoming wire extend from the top of the network cabinet.
  • the connecting wire of the load is directly electrically connected to the first outgoing end and the second outgoing end on the front side (forming Front outlet), compared with the existing upper inlet (the first inlet and second inlet are on the upper surface of the housing) and the lower outlet (the first and second outlet are on the lower surface of the housing) , Will reduce the size along the height direction of the power distribution unit in the network cabinet, compared with the existing rear inlet line (the first inlet end and the second inlet end are located on the side surface of the housing) and the rear outlet line (the first An outlet end and a second outlet end are also located on the side surface of the housing), which prevents the incoming wire connected to the power distribution unit from being bent during wiring to occupy more installation space. Therefore, the embodiment of the present application provides The circuit breaker will reduce the installation space.
  • the first aspect further includes: a first locking member and/or a second locking member; the first locking member is used to fasten the first transition metal sheet to the first transition end , And can fasten the first incoming wire on the first incoming end; the second locking member is used to fasten the second transition metal piece on the second transition end, and can fasten the second incoming wire The wire is fastened to the second wire-in end.
  • the first locking member can fasten the first transition metal piece and the first incoming wire
  • the second locking member can fasten the second transition metal piece and the second incoming wire to improve Installation efficiency.
  • the first locking member includes: a first screw, a first metal pressing plate, and a first metal junction frame, the first end of the opposite ends of the first screw is located outside the housing, and the second The end passes through the through hole on the first end of the first metal manifold and extends into the housing.
  • the first end of the first metal manifold is the end of the first metal manifold that is inserted into the first transition end; the first metal The pressing plate is arranged at a position close to the first end of the first screw, and the first metal pressing plate is relatively fixed to the first screw, and the first metal pressing plate is located between the first end of the first metal manifold and the first end of the first screw.
  • the first metal junction frame is arranged at a position close to the second end of the first screw, a cavity is formed in the first metal junction frame, and the second end of the first metal manifold extends into the cavity to make the cavity
  • the cavity forms a first cavity and a second cavity.
  • the second end of the first screw passes through the first metal connection frame and extends into the first cavity.
  • the first metal connection frame is threaded with the first screw, and the second cavity
  • the cavity can be inserted into the first wire inlet, and the second end of the first metal busbar is an end of the first metal busbar inserted into the first wire inlet end.
  • the first screw can drive the first metal pressing plate to move to compress the first transfer metal sheet inserted into the first transfer end, and can also drive the first metal junction frame to move The first wire-in wire inserted into the first wire-in end is pressed tightly, that is, the first transfer metal piece and the first wire-in wire are fixed by rotating the first screw.
  • the first aspect further includes a first insulating shielding plate, the first insulating shielding plate is connected to the first metal pressing plate, and when the first screw moves along its extending direction, it can drive the first metal pressing plate and the first metal pressing plate.
  • the insulating shielding plate moves synchronously so that the first insulating shielding plate moves and blocks the opening of the first transition end.
  • the first insulation shield can cover the first transition end, which improves the safety performance of the circuit breaker.
  • the present application provides a power distribution system, including: a power distribution unit and a plurality of circuit breakers in the first aspect or any implementation of the first aspect, the plurality of circuit breakers are arranged in the power distribution unit , And multiple circuit breakers are arranged side by side.
  • the linkage mechanism of the circuit breaker not only includes a fixed plate, a crank arm, and a jumper plate assembly, but also Including the steering plate, by setting the steering plate and arranging strip holes on the moving contact plate to limit the angle and direction of rotation of the moving contact plate.
  • the link mechanism When the link mechanism is arranged along the length of the circuit breaker, it will move When the contact plate and the static contact plate are close to the rear of the shell, the extending direction of the strip hole is not parallel to the contact plane, so that the movable contact passes through the limit of the strip hole when the static contact is opened.
  • the movable contact will not rotate to the top of the shell, but toward the back of the shell, and the gas generated by the arc when the switch is opened will also be sprayed to the back of the circuit breaker, avoiding the space occupied by the arc in the height direction , In order to realize the miniaturization of the power distribution system.
  • the housing has opposite bottom and top surfaces, opposite front and rear sides located between the bottom and top, a crank arm, a jumper assembly, a steering plate, and a movable contact plate It is arranged from the front side to the rear side, and the rear side of the casing faces the rear wall of the power distribution unit.
  • the power distribution unit is electrically connected to the first incoming wire through the first incoming wire, and is electrically connected to the second incoming wire through the second incoming wire;
  • the power distribution system also includes a first transition metal sheet, which is electrically connected adjacently The first transfer end of two circuit breakers; the second transfer metal sheet, which is electrically connected to the second transfer end of two adjacent circuit breakers.
  • the current is split by the first and second transfer metal sheets, so that it is no longer necessary to connect a connector that functions as a shunt outside the circuit breaker, which simplifies the structure of the entire power distribution system.
  • Figure 1a is a schematic diagram of the working state of the circuit breaker in the prior art when it is closed;
  • Figure 1b is a schematic diagram of the working state of the circuit breaker in the prior art when it is opened;
  • FIG. 2 is a schematic diagram of a working state of the circuit breaker provided by an embodiment of the application
  • FIG. 3 is a schematic diagram of another working state of the circuit breaker provided by the embodiment of the application.
  • FIG. 4 is a schematic diagram of another working state of the circuit breaker provided by the embodiment of the application.
  • FIG. 5 is a schematic diagram of the structure of a movable touch panel provided by an embodiment of the application.
  • Fig. 6 is a schematic structural diagram of a steering plate provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of the connection relationship between the link mechanism and the movable contact plate provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of the internal structure of a circuit breaker provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of the connection relationship between the arc extinguishing grid, the arc striking plate and the arc absorbing plate provided by an embodiment of the application;
  • FIG. 10 is a schematic diagram of the positional relationship between the arc ignition plate and the arc extinguishing grid provided by an embodiment of the application;
  • Figure 11 is a schematic structural diagram of an arc-absorbing plate provided by an embodiment of the application.
  • FIG. 12 is a schematic diagram of the external structure of a circuit breaker provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of the internal structure of a circuit breaker provided by an embodiment of the application.
  • Figure 14 is a schematic diagram of the internal structure of a circuit breaker provided by an embodiment of the application.
  • 15 is a schematic structural diagram of a first metal busbar provided by an embodiment of the application.
  • FIG. 16 is a schematic diagram of the connection relationship between the first screw, the first metal junction frame, the first metal bus plate, and the first metal pressure plate according to an embodiment of the application;
  • FIG. 17 is another perspective view of FIG. 16;
  • 18 is a schematic diagram of the connection relationship between the buckle, the pulling member, the first elastic member, and the second elastic member provided by an embodiment of the application;
  • FIG. 19 is a schematic structural diagram of a power distribution system provided by an embodiment of the application.
  • circuit breaker and a power distribution system relate to a circuit breaker and a power distribution system.
  • the circuit breaker and the power distribution system will be described in detail below with reference to the accompanying drawings.
  • an embodiment of the present application provides a circuit breaker.
  • the circuit breaker includes a housing (not shown in Figures 2, 3, and 4), and a connection provided in the housing.
  • the lever mechanism 1, the moving contact plate 2 and the static contact plate 3, and the linkage mechanism 1 is connected with the moving contact plate 2 to control the moving contact plate 2 and the static contact plate 3 to switch between the closing state and the opening state.
  • the linkage mechanism 1 includes: a fixed plate 11, a crank arm 12, a jumper plate assembly 13 and a steering plate 14; wherein the crank arm 12 is hinged with the fixed plate 11, the jumper plate assembly 13 is hinged with the crank arm 12, and the steering plate 14 is respectively It is hinged with the jumper board assembly 13, is hinged with the movable contact plate 2, and is hinged with the fixed plate 11 through the rotating shaft 17.
  • the hinge points of the steering plate 14 and the jumper assembly 13, the hinge points of the steering plate 14 and the movable contact plate 2, and the hinge points of the steering plate 14 and the fixed plate 11 are arranged in a triangle shape (as shown in FIG. 2).
  • the moving contact plate 2 has a strip hole 201 (as shown in Figure 5), the contact surface of the moving contact plate 2 and the static contact plate 3 is a contact plane (face B as shown in Figure 3), the strip hole 201
  • the extension direction is not parallel to the contact plane B surface, the rotation shaft 17 passes through the strip hole 201, and the movable contact plate 2 can move relative to the rotation shaft 17 along the extension direction of the strip hole 201.
  • the steering board 14 is hinged with the jumper board assembly 13 through the first hinge shaft 15, and the steering board 14 is hinged with the movable contact board 2 through the second hinge shaft 16.
  • the first hinge shaft 15 and the second hinge shaft 16 are arranged parallel to the rotation shaft 17.
  • Figures 2 to 4 show the closing process of the connecting rod mechanism 1 driving the moving contact plate 2 and the static contact plate 3, specifically: when in the open state, the moving contact plate 2 is separated from the static contact plate 3, and the rotating shaft 17 abuts against the first end of the strip hole 201, referring to Figures 2 and 3, when the arm 12 rotates in the first rotation direction (counterclockwise), the jumper plate assembly 13 rotates relative to the arm 12, and the steering plate 14 It also rotates about the first hinge axis 15 relative to the jumper plate assembly 13, the steering plate 14 rotates about the rotation axis 17 relative to the fixed plate 11, and the movable contact plate 2 rotates about the second hinge axis 16 relative to the steering plate 14 until the movable contact 2 and The static contact 3 is in contact.
  • This stage is the distance phase.
  • the moving contact plate 2 and the static contact plate 3 are only in contact, and there is no squeezing force between them. 3 and 4, as the crank arm 12 continues to rotate, the movable contact plate 2 moves relative to the rotation axis 17 along the direction P1 in FIG. 4 under the action of the steering plate 14. As the movable contact plate 2 moves, The squeezing force between the moving contact plate 2 and the static contact plate 3 gradually increases until the moving contact plate 2 and the static contact plate 3 are electrically connected. This stage is the closing stage.
  • Figures 4 to 2 show the opening process of the linkage mechanism 1 driving the moving contact plate 2 and the static contact plate 3, specifically: when in the closed state, the moving contact plate 2 abuts the static contact plate 3, refer to the figure 4 and 3, when the turning arm 12 rotates in the second rotation direction (clockwise), the jumper plate assembly 13 is driven to rotate, and the jumper plate assembly 13 drives the steering plate 14 to rotate around the first hinge axis 15, and the movable contact plate 2 Under the action of the steering plate 14, the relative rotating shaft 17 moves in a direction opposite to the direction P1 in FIG. When the rotating shaft 17 abuts the first end of the strip hole 201, the pressing force between the movable contact plate 2 and the static contact plate 3 is reduced to zero. This stage is the over-travel stage.
  • the moving touch panel 2 and the static touch panel 3 are still in contact. 3 and 2
  • the jumper plate assembly 13 rotates relative to the crank arm 12
  • the steering plate 14 also rotates relative to the jumper plate assembly 13 about the first hinge axis 15, and the steering plate 14 is relatively fixed.
  • the plate 11 rotates around the rotation axis 17, and the moving contact plate 2 rotates relative to the steering plate 14 around the second hinge axis 16 until the moving contact plate 2 is separated from the static contact plate 3.
  • This stage is the opening stage.
  • over-travel refers to the distance between the moving contact plate from the closing position to the just-opening position
  • open distance refers to the distance between the moving contact plate from the opening position to the just-closing position
  • the connecting rod mechanism in the circuit breaker provided by the present application adds a steering plate, and makes the hinge point of the steering plate and the jumper plate assembly, the hinge point of the steering plate and the movable contact plate, and the steering plate
  • the hinge points of the sum and the fixed plate are arranged in a triangle shape, and a strip hole that is not parallel to the contact plane is opened on the movable contact plate to limit the rotation direction and the rotation angle of the movable contact plate.
  • the housing 4 has a bottom surface 401 and a top surface 402 opposed to each other, and a front side 403 and a rear surface located between the bottom surface 401 and the top surface 402 and opposed to each other.
  • Side 404, arm 12, jumper plate assembly 13, steering plate 14 and moving contact plate 2 are arranged from the front side to the rear side, so that the arc sprayed out when the moving contact plate 2 and the static contact plate 3 are opened will face
  • the rear of the circuit breaker (as shown in Figure 2), compared to the arc spraying towards the top of the circuit breaker, will correspondingly reduce the size of the circuit breaker in the height direction (as shown in Figure 2 H).
  • the jumper board assembly 13 provided in this embodiment includes a jumper board 131, a jumper board bracket 132, and a lock half shaft 133, wherein the jumper board 131 is hinged to the jumper board bracket 132, and the lock half shaft 133 is hinged to the jumper bracket 132.
  • the extending direction of the strip hole 201 is perpendicular to the contact plane.
  • the technical effect achieved by this design is that it can ensure the stability of the over-travel and open distance of the moving touch panel.
  • the steering plate 14 includes: a first plate 141 and a second plate 142 opposed to each other.
  • the first plate 141 and the second plate 142 are connected by a connecting plate 143, and the first plate 141 and the second plate 142 is provided with a first hinge hole 144, a second hinge hole 145, and a third hinge hole 146 arranged in a triangle shape.
  • the rotation axis passes through the first hinge hole 144 on the first plate 141 and the second hinge hole 144 on the second plate 142.
  • a hinge hole 144 passes through the strip-shaped hole on the movable touch panel.
  • the second hinge hole 145 is provided with a first hinge shaft and is hinged with the jumper assembly
  • the third hinge hole 146 is provided with a second hinge shaft and It is hinged with the moving touch board.
  • the steering plate 14 may also have other structures. Any structure of the steering board is within the protection scope of this application.
  • the part of the movable contact plate 2 hinged to the steering plate 14 is located between the opposite first plate 141 and the second plate 142
  • the part of the jumper plate assembly 13 hinged to the steering plate 14 is located between the first plate 141 and the second plate 142 opposite to each other. That is to say, the movable contact board and the jumper board assembly are arranged between the opposite first board and the second board, so as to make full use of the space between the first board and the second board.
  • the pinch plate assembly is arranged between the first plate and the second plate. First, it will avoid occupying the space of other structures. Second, for the jumper plate assembly that requires higher processing accuracy, the amount of change is small, and it will not be changed because of the jumper. The size of the board assembly is changed greatly, which affects the stability of the circuit breaker.
  • an electric arc will be generated between the moving contact plate 2 and the static contact plate 3 when the current passes through the process of switching to no current.
  • an arc extinguishing grid 28 is installed at a position corresponding to the movable contact plate 2 of the housing 4.
  • the arc extinguishing grid 28 is close to the rear side 404, and the rear side 404 of the housing 4 is provided with a row ⁇ 405 ⁇ Stomach 405. In this way, the gas generated by the arc can be discharged backward, and there is no need to reserve an arcing distance of about 35mm in the height direction of the circuit breaker, thereby reducing the size of the circuit breaker in the height direction.
  • the arc ignition plate 29 includes a flat plate section 291 and a bending section 292.
  • the grid sheet 28 is bent in the direction.
  • the arc pilot plate includes a flat plate section.
  • the flat plate section 291 is located under the arc extinguishing grid 28 and can reflect upwardly the arc splashing on it, and the bent section 292 is located on the arc extinguishing grid.
  • the side surface of 28 can reflect the arc to the arc extinguishing grid 28 from the side. Therefore, the flat section 291 and the bending section 292 can reflect the arc to the arc extinguishing grid from multiple angles, which further improves the safety of the circuit breaker. performance.
  • the circuit breaker In order to prevent the charged particles in the arc from affecting other structures in the housing, or to prevent the charged particles in the arc from being discharged from the exhaust hole and affecting other equipment, the circuit breaker also includes an arc absorbing plate 30, which is arranged on the extinguishing plate. On the side of the arc grid sheet 28 close to the top surface, the arc absorbing plate 30 is made of metal material, and the arc absorbing plate 30 is provided with a filter hole 301 through which the charged particles in the arc are filtered.
  • the arc-absorbing plate 30 includes a first filter plate and a second filter plate that are folded relative to each other, and the meshes on the first filter plate and the meshes on the second filter plate are staggered. That is, the mesh on the first filter plate is opposite to the non-mesh on the second filter plate, and the non-mesh on the first filter plate is opposite to the mesh on the second filter plate.
  • the housing 4 is provided with a first inlet end 406 and a second inlet end 407, a first outlet end 410 and a second outlet end 411, a first adapter end 408 and a second adapter end 409, respectively.
  • the first transfer end 408 is used to electrically connect to the first transfer end 408 of another circuit breaker through the first transfer metal sheet
  • the second transfer end 409 is used to connect to the other circuit breaker through the second transfer metal sheet.
  • the second switching terminal 409 is electrically connected.
  • the housing 4 is provided with a first metal busbar 8 (as shown in FIG. 13), and a second metal busbar 18 (as shown in FIG. 14).
  • the first metal busbar 8 is electrically connected to the first inlet end 406 and the second An adapter end 408 and a local output terminal located in the housing, and the second metal bus plate 18 is electrically connected to the second wire-in end 407, the second adapter end 409 and the static contact 3. In this way, a 1P+N (N-pole straight through) circuit breaker is formed.
  • the housing 4 is provided with a first adapter end 408 and a second adapter end 409, referring to FIG. 19, in specific use, the first adapter end 408 can be disconnected from the other through the first adapter metal sheet 24
  • the first switching terminal 408 of the circuit breaker is electrically connected, and the second switching terminal 409 can be electrically connected to the second switching terminal 409 of another circuit breaker through the second switching metal sheet 25, thus realizing current shunting. That is to say, the current can be shunted from one circuit breaker to the other circuit breaker through the first transfer metal sheet and the second transfer metal sheet.
  • the first and second transition metal sheets are used to connect the first circuit breaker and the second circuit breaker, and the power distribution unit is connected to the first circuit breaker through the first incoming wire and the second incoming wire,
  • the first circuit breaker is connected to the first load
  • the second circuit breaker is connected to the second load
  • the moving contact plate and the static contact plate of the first circuit breaker are in the closed state
  • the moving contact plate and the static contact plate of the second circuit breaker are in the closed state.
  • the power distribution unit supplies power to the first circuit breaker through the first incoming wire and the second incoming wire, and then supplies power to the corresponding first load, and at the same time through the first transfer metal sheet and the second transfer The metal sheet shunts the current to the second circuit breaker to supply power to the second load.
  • the first incoming end 406 and the second incoming end 407, the first outgoing end 410 and the second outgoing end 411, the first transition end 408 and the second transition end 409 are opened on the housing 4 in various positions. Condition.
  • the circuit breaker is inserted into the power distribution unit 22, and power is supplied to the circuit breaker through the power distribution unit 22.
  • the power distribution unit 22 is installed near the top of the network cabinet, and the installation space is also Smaller.
  • the first inlet end 406 and the second inlet end 407, the first adapter end 408 and the second adapter end 409 are all opened on the top surface 402, and the first The outlet end 410 and the second outlet end 411 are located on the front side 403, the first inlet end 406 and the second inlet end 407 are located at the first end of the top surface, and the first transition end 408 and the second transition end 409 are located on the top surface.
  • the second end is located on the top surface, and the first end is opposite to the second end.
  • the technical effect produced by this design is: if the circuit breaker of this structure provided in the embodiment of the application is installed in the power distribution unit, the top surface faces the top of the network cabinet, and the first incoming wire and the second wire can be directly connected.
  • the second incoming wire is electrically connected to the outlet terminal of the power distribution unit located above the top surface.
  • the incoming wire method formed in this way can be called the upper incoming wire. There is no need to bend the first incoming wire and the second incoming wire.
  • the space occupied by the first incoming wire and the second incoming wire is reduced; in addition, the first outgoing wire end 410 and the second outgoing wire end are connected 411 is located on the front side, that is, towards the direction of the load. In this way, the connecting wire is used to directly connect the load and the circuit breaker.
  • the outlet method formed in this way can be called front outlet. Will take up a lot of space.
  • the power distribution unit 22 may also be installed at a position close to the bottom of the network cabinet, so that the top surface faces the bottom of the network cabinet.
  • the first transfer end 408 and the second transfer end 409 are also opened on the top surface.
  • multiple circuit breakers are arranged side by side, and the first transfer metal sheet can be used directly 24. Electrically connect the first switching terminal 408 on one circuit breaker with the first switching terminal 408 of the other circuit breaker, and use the second switching metal sheet 25 to connect the second switching terminal 409 on one circuit breaker with the other.
  • the second transfer end 409 of a circuit breaker is electrically connected, and the first transfer metal sheet and the second transfer metal sheet can be designed into a flat structure, the structure is simple, no bending is required, and the space occupied is small.
  • the first metal busbar 8 has a first end 801, a second end 802, and a third end 803 connected to each other.
  • the first end 801 is located in the first adapter end 408 for use It is electrically connected to the first transition metal sheet inserted into the first transition end 408, and the second end 802 is located in the first incoming end 406 for connecting to the first incoming line inserted into the first incoming end 406
  • the wire is electrically connected, and the third end 803 is electrically connected to the local output terminal provided in the housing 4.
  • the first metal manifold 8 has a variety of achievable situations.
  • the first metal manifold 8 includes a horizontal plate and a vertical plate.
  • the end has a first extension part and a second extension part. Both the first extension part and the second extension part extend in a direction away from the vertical plate.
  • the first extension part forms the first end and extends into the first adapter end.
  • the extension part forms a second end and extends into the first inlet end, and the end of the vertical plate away from the horizontal plate forms a third end and is electrically connected to the local output terminal.
  • the first metal busbar 8 can also be designed in other structures, and the first metal busbar 8 of any structure is within the protection scope of the present application.
  • the vertical plate connected in the middle of the horizontal plate does not only mean that the vertical plate is connected to the geometric center of the horizontal plate, as long as it is located at any position of the two ends of the horizontal plate, it can be called the vertical plate connected in the middle of the horizontal plate. .
  • Both the first extension part and the second extension part have an embossed structure. Since the embossed structure is adopted, a lot of point contacts will be formed on the interface, thereby improving the reliability of the contact and reducing the contact resistance of the interface .
  • the horizontal plate and the vertical plate may be connected by a welding structure, and the horizontal plate and the vertical plate may be integrally formed to obtain the first metal manifold.
  • the present application preferentially adopts the integrally formed first metal busbar, because the integrally formed first metal busbar has fewer connection points and lower impedance than the first metal busbar made by welding structure.
  • the first metal busbar 8 When the first metal busbar 8 with the structure shown in FIG. 15 is used, in order to improve the heat dissipation effect of the first metal busbar 8, referring to FIG. 15, the first metal busbar 8 also includes a heat dissipation plate 804, which The design increases the heat dissipation area of the first metal busbar 8 to improve the heat dissipation effect of the first metal busbar.
  • the second metal bus plate 18 has a first end 181, a second end 182, and a third end 183 that are connected, and the first end 181 is located in the second transition end for It is electrically connected to the second transition metal sheet inserted into the second transition end, and the second end 182 is located in the second incoming end for electrical connection with the second incoming wire inserted into the second incoming end,
  • the third end 183 is electrically connected to the static contact 3.
  • the embodiment of the present application provides a first locking member for fastening the first transition metal piece 16 and 17, the first locking member includes: a first screw 6 and a first metal pressing plate 501, the first end of the opposite ends of the first screw 6 is located outside the housing, and the second end passes through the The through hole (through hole shown in FIG.
  • the first metal pressing plate 501 is arranged at a position close to the first end of the first screw 6, and the first metal The pressing plate 501 is relatively fixed to the first screw 6, and the first metal pressing plate 501 is located between the first end 801 of the first metal manifold and the first end of the first screw 6.
  • the first screw After the first transition metal piece is inserted into the first transition end, by rotating the first screw, the first screw will drive the first metal pressure plate toward the first end of the first metal manifold relative to the first metal manifold. Move to clamp the first transition metal sheet between the first end of the first metal busbar and the first metal pressing plate.
  • the circuit breaker also includes a first metal junction frame 7, the first metal junction frame 7 is arranged at a position close to the second end of the first screw 6, a cavity is formed in the first metal junction frame 7, the first metal junction frame 7
  • the second end 802 of the metal manifold extends into the cavity, so that the cavity forms a first cavity 701 and a second cavity 702.
  • the second end of the first screw 6 penetrates the first metal junction frame and extends to The first cavity 701, and the first metal junction frame 7 is threadedly engaged with the first screw 6, and the second cavity 702 can be inserted into the first wire.
  • the second end of the first screw 6 will abut the second end 802 of the first metal manifold to prevent the movement of the first screw 6.
  • a metal connection frame is threaded. When the first screw continues to rotate, the first metal connection frame will be driven to move away from the first metal pressing plate to clamp the first incoming wire in the second cavity.
  • the structure for fastening the first transition metal sheet and the first incoming wire provided by the embodiment of the application realizes the fastening of them by rotating the same first screw.
  • the structure is simple and the implementation is convenient. .
  • the circuit breaker also includes a first insulating shield plate 502, the first insulating shield plate 502 is connected with the first metal pressure plate 501, when the first screw 6 moves along its extension direction, can drive the first metal
  • the pressing plate 501 and the first insulating shielding plate 502 move synchronously to move the first insulating shielding plate 502 and block the opening of the first transition end.
  • the first screw can be rotated to drive the first metal pressing plate to move so that the first insulating shield plate 502 is moved away from the opening of the first transition end, so that the first transition end is at Open state.
  • the first screw Since the first screw is in clearance fit with the through hole on the first end of the first metal manifold, the first screw, the first metal junction frame and the first metal pressing plate have a degree of freedom in the extending direction of the screw, so that when the first screw is inserted When a metal sheet is transferred, it may happen that the first metal pressing plate blocks the first transfer end, and the first transfer metal sheet cannot be smoothly inserted into the first transfer end.
  • the circuit breaker further includes a first locking elastic member 17, which is arranged close to the first metal junction frame 7.
  • the first elastic locking member 17 can apply an elastic force toward the first end of the first screw to the first metal terminal frame 7, so that there is a space between the first metal pressing plate and the first extension for the insertion of the first transition metal sheet.
  • the distance D by providing the first locking elastic member 17, can prevent the first screw, the first metal junction frame and the first metal pressing plate from moving along the extension direction of the screw, thereby promoting the gap between the first metal pressing plate and the first extension. It has a fixed spacing D, which effectively guarantees the smooth insertion of the first transition metal sheet.
  • the installation position of the first elastic locking member 17 can be realized in many ways.
  • the first elastic locking member 17 is disposed in the first cavity 701, and the first elastic locking member One end of 17 is connected to the second end 802 of the first metal busbar, and the other end is connected to the first metal junction frame 7.
  • the first elastic locking member 17 is disposed outside the first metal junction frame 7, one end of the first elastic locking element 17 is relatively fixed to the housing, and the other end is connected to the first metal junction frame 7.
  • the first elastic locking member 17 also has other installation methods, and the installation method of the first elastic locking member 17 is not limited here.
  • the embodiment of the present application provides a second locking member for fastening the second transition metal piece , wherein the structure of the first locking member and the second locking member can be the same or different.
  • the present application preferably has the same structure of the second locking member and the first locking member. The structure of the two locking parts is described in detail.
  • the second locking member includes: a second screw 20 and a second metal pressing plate 191, the first end of the opposite ends of the second screw 20 is located outside the housing, and the second end passes through the second metal manifold The through hole on the first end 181 of the 18 extends into the housing; the second metal pressing plate 191 is arranged close to the first end of the second screw 20, and the second metal pressing plate 191 is relatively fixed to the second screw 20, and the second metal pressing plate 191 is relatively fixed to the second screw 20.
  • the metal pressing plate 191 is located between the first end 181 of the second metal manifold and the first end of the second screw 20.
  • the second screw After the second transition metal piece is inserted into the second transition end, by rotating the second screw, the second screw will drive the second metal pressure plate relative to the second metal manifold toward the first end of the second metal manifold Move to clamp the second transition metal sheet between the first end of the second metal bus plate and the second metal pressing plate.
  • the circuit breaker further includes a second metal connection frame 21, the second metal connection frame 21 is arranged at a position close to the second end of the second screw 20, the second metal connection 21 is formed with a cavity, the second metal The second end of the manifold extends into the cavity, so that the cavity forms a first cavity and a second cavity, and the second end of the second screw 20 extends through the second metal wiring frame into the first cavity , And the second metal junction frame 21 is threadedly matched with the second screw 20, and the second cavity can be inserted into the second incoming wire.
  • the second end of the second screw 20 will abut against the second end of the second metal manifold to prevent the movement of the second screw 20.
  • the metal junction frame is threaded, and when the second screw continues to rotate, it will drive the second metal junction frame to move away from the second metal pressing plate to clamp the second incoming wire in the second cavity.
  • the circuit breaker further includes a second insulation shield 192, the second insulation shield 192 is connected with the second metal pressure plate 191, when the second screw 20 moves along its extension direction, can drive the second metal pressure plate 191 and the second The two insulating shielding plates 192 move synchronously so that the second insulating shielding plate 192 moves and blocks the opening of the second transition end.
  • the second screw can be rotated to drive the second metal pressing plate to move so that the second insulating shielding plate 192 is moved away from the opening of the second transition end, so that the second transition end is at Open state.
  • the second screw Since the second screw is in clearance fit with the through hole on the first end of the second metal manifold, the second screw, the second metal junction frame and the second metal pressure plate have a degree of freedom along the extension direction of the screw, so that when the second screw is inserted When the second transition metal sheet is used, the second transition end may be blocked by the second metal pressing plate, and the second transition metal sheet cannot be smoothly inserted into the second transition end.
  • the circuit breaker further includes a second locking elastic member.
  • the second locking elastic member is arranged close to the second metal junction frame 21.
  • the second metal connection frame 21 applies elastic force toward the first end of the second screw, so that there is a distance between the second metal pressing plate and the first extension portion for the insertion of the second transition metal sheet, and a second locking elastic member is provided. , It can prevent the second screw, the second metal junction frame and the second metal pressing plate from moving along the extension direction of the second screw, so as to promote a fixed distance between the second metal pressing plate and the first extension part, effectively guaranteeing the second transition The metal piece is inserted smoothly.
  • the installation position of the second elastic locking member can be realized in many ways.
  • the second elastic locking member is arranged in the first cavity of the second wiring frame, and one end of the second elastic locking member is connected to the first cavity.
  • the second end of the two metal busbars is connected, and the other end is connected to the second metal junction frame.
  • the second elastic locking member is disposed outside the second metal wiring frame, one end of the second elastic locking member is relatively fixed to the housing, and the other end is connected to the second metal wiring frame.
  • the embodiment of the present application also provides a structure for connecting the circuit breaker and the power distribution unit, which is described in detail below.
  • the clamping structure includes: a buckle (101 or 102), a pulling member 9 and a first elastic member 13 and a second elastic member 14.
  • the buckle can be relative to the housing along a first direction (the first direction is the reason The direction from the front side to the rear side) moves between the extended position and the retracted position.
  • the first direction is the reason The direction from the front side to the rear side
  • the buckle is located on the outside of the housing and is used to buckle with the power distribution unit.
  • the buckle When the buckle is in the retracted position, In position, the buckle is located inside the casing to separate from the power distribution unit.
  • the pulling member 9 can move in a second direction relative to the casing.
  • the second direction is perpendicular to the first direction.
  • the pulling member 9 has a first opposite direction.
  • the first end is located inside the housing and the second end is located outside the housing.
  • the first end abuts against the buckle, and when the buckle is in the retracted position, the first end and
  • the first elastic member 13 can apply elastic force to the pulling member 9 so that the first end abuts against the buckle and exerts a pushing force on the buckle toward the outside of the housing
  • the second elastic member 14 can apply elastic force to the buckle,
  • the pulling member 9 is pulled and the first end is separated from the buckle, the second elastic member 14 can restore the buckle from the retracted position to the extended position.
  • the working principle of the clamping structure is: in the initial state, the first elastic member 13 can exert an elastic force on the pulling member 9 toward the inside of the housing, so that the first end of the pulling member 9 abuts against the buckle and engages
  • the buckle exerts a thrust toward the outside of the housing, so that the end of the buckle is at the end of the housing and can be connected to the power distribution unit.
  • the circuit breaker connected to the power distribution unit needs to be removed, the pulling member 9 is pulled toward the outside of the housing to break the elastic force of the first elastic member 13 on the pulling member 9, so that the end of the pulling member 9
  • the buckle is separated from the buckle, the thrust to the buckle disappears, and the buckle will move to the inside of the housing, and then the circuit breaker will be removed from the power distribution unit.
  • the buckle Under the action of the second elastic member, the buckle can be restored from the retracted position to the extended position, so as to perform the next clamping.
  • the circuit breaker When the circuit breaker is connected to the power distribution unit through the clamping structure, the installation is convenient, and the circuit breaker can be plugged and replaced on site without removing other structural parts to realize the plugging and unplugging of the circuit breaker.
  • the buckle includes a first buckle 101 and a second buckle 102. On both sides, an end of the first buckle 101 in the housing and an end of the second buckle 102 in the housing are connected by a second elastic member. It may also be that the first buckle 101 is connected to the housing through the second elastic member 14, and the second buckle 102 is connected to the housing through the second elastic member 14.
  • the first buckle and the second buckle that are arranged oppositely are connected to the power distribution unit. Compared with a single buckle connection, the connection strength between the circuit breaker and the power distribution unit is correspondingly improved.
  • the present application does not limit the structure of the first buckle 101 and the second buckle 102.
  • a jack 15 is provided on the housing 4, and the jack 15 is used to plug into the card board 23 of the power distribution unit, and the jack 15 is provided with
  • the elastic deformation of the third elastic member 16 and the third elastic member 16 can make the clamping plate 23 be clamped in the insertion hole 15.
  • the jack 15 can be opened on the side of the housing opposite to the pulling member. By opening the jack 15 on the housing and arranging the third elastic member 16 in the jack 15, the circuit breaker and the power distribution unit can be plugged in. , In this way, the connection strength between the circuit breaker and the power distribution unit can be further improved.
  • the third elastic member 16 includes opposite elastic pieces. After the card board is inserted into the socket, the elastic piece squeezes the card board to fix the card board in the socket.
  • the third elastic member 16 may also be an elastic structural member of other structures.
  • a first slideway for the first buckle 101 to slide is provided in the housing, and a slideway for the second buckle 102 to slide is also provided in the housing.
  • the extension directions of the second slide, the first slide and the second slide are all parallel to the first direction.
  • the ends of the first buckle 101 and the second buckle 102 that are mated with the power distribution unit are formed with inclined surfaces.
  • the inclined surface allows the first buckle and the second buckle to slide smoothly into the slot of the power distribution unit.
  • the end of the pulling member 9 close to the first buckle 101 is formed with a first inclined abutting surface that is arranged obliquely, and the end of the first buckle 101 close to the pulling member 9 is also formed with the first The second inclined abutting surface matched with the inclined abutting surface.
  • the end of the pulling member 9 close to the second buckle 102 is formed with a third inclined abutting surface, and the end of the second buckle 102 close to the pulling member 9 is also formed with a third inclined contact surface.
  • the fourth inclined abutting surface matched with the abutting surface.
  • the first inclined abutting surface and the second inclined abutting surface, as well as the third inclined abutting surface and the fourth inclined abutting surface may be 45° inclined surfaces.
  • the circuit breaker When pulling the pulling member 9, in order to prevent the first end of the pulling member 9 from being pulled out of the housing, the circuit breaker also includes a limiting structure for preventing the first end of the pulling member from sliding to the shell The outside of the body.
  • the limiting structure includes a limiting slot 12 and a limiting pin 11.
  • the limiting slot 12 is opened on the pulling member 9, one end of the limiting pin 11 is relatively fixed to the housing, and the other end is located in the limiting slot 12 ,
  • the extension direction of the limiting groove 12 is parallel to the second direction.
  • the limit structure includes a limit slot and a limit pin.
  • the limit slot is opened on the housing.
  • One end of the limit pin is relatively fixed to the pulling member, and the other end is located in the limit slot.
  • the extension direction of the limit slot is parallel to the first Two directions.
  • an embodiment of the present application also provides a power distribution system.
  • the power distribution system includes a power distribution unit 22 and a plurality of circuit breakers.
  • the circuit breakers are arranged side by side, and the circuit breaker is the circuit breaker provided by the above-mentioned first aspect embodiment.
  • the linkage mechanism in the circuit breaker includes not only the fixed plate, the crank arm, and the jumper plate assembly, but also the steering plate, and the hinge point of the steering plate and the jumper plate assembly, and the hinge point of the movable contact plate , And the hinge points of the fixed board are arranged in a triangle shape.
  • the movable contact board has a strip hole, and the extending direction of the strip hole is not parallel to the contact plane. That is, through the steering plate and the movable contact plate is provided with strip holes with non-parallel contact planes, the rotation angle and the rotation direction of the movable contact plate are defined.
  • the crank arm, the jumper plate assembly, the steering plate and the movable contact plate are arranged from the front side to the rear side, and the rear side of the housing faces the rear wall of the power distribution unit.
  • the movable contact plate and the static contact plate are opened, the arc sprayed toward the rear side of the circuit breaker, that is, toward the rear wall of the power distribution unit, compared to the existing arc spraying toward the top surface of the circuit breaker, it will correspond
  • the reduction of the height dimension of the circuit breaker will also correspondingly reduce the height dimension of the power distribution system.
  • the power distribution unit 22 when the housing is provided with a first inlet end and a second inlet end, a first outlet end and a second outlet end, a first transfer end and a second transfer end, the power distribution unit 22
  • the first incoming wire 26 is electrically connected to the first incoming wire end
  • the second incoming wire 27 is electrically connected to the second incoming wire end
  • the first transition ends of two adjacent circuit breakers pass through the first
  • the transfer metal sheet 24 is electrically connected
  • the second transfer ends of two adjacent circuit breakers are electrically connected through the second transfer metal sheet 25 to realize current shunting. No connector is required, which simplifies the entire power distribution system. Structure, reduce the occupied space.
  • the phase of the power distribution unit 22 A first slot 221 is provided at a position corresponding to the first buckle, and a second slot 222 is provided at a position corresponding to the second buckle of the power distribution unit 22.
  • the first buckle is connected to In the first card slot, and the second card buckle is clamped in the second card slot to realize the card connection between the circuit breaker and the power distribution unit.
  • the circuit breaker is easy to install, and the circuit breaker can be plugged and unplugged on site, and the circuit breaker can be plugged and unplugged without removing other structural parts.

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Abstract

本申请实施例提供一种断路器及配电系统，涉及电器设备技术领域，断路器，包括壳体、设置在壳体内的连杆机构、动触板和静触板，连杆机构与动触板连接，以控制动触板和静触板在合闸状态和分闸状态之间切换，连杆机构包括: 固定板、拐臂、跳扣板组件和转向板; 拐臂与固定板铰接，跳扣板组件与拐臂铰接，转向板分别与跳扣板组件铰接、与动触板铰接、以及通过转动轴与固定板铰接，转向板与跳扣板组件的铰接点、与动触板的铰接点，和与固定板的铰接点呈三角形布设；动触板上具有呈条形结构的条形孔，动触板与静触板相接触的面为触平面，条形孔的延伸方向与触平面不平行，转动轴穿过条形孔，且动触板能够相对转动轴沿条形孔的延伸方向移动。

Description

一种断路器及配电系统
本申请要求于2020年05月21日提交国家知识产权局、申请号为202010437646.1发明名称为“一种断路器及配电系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电器设备技术领域，尤其涉及一种断路器及配电系统。
背景技术
断路器的使用能有效提高电器设备的安全性和可靠运行。参照图1a和图1b，用户可以操作位于断路器外部的按钮(图中未示出)，以带动连杆机构01运动，进而操控动触板02和静触板03合闸或分闸，图1a所示的为合闸状态，图1b所示的为分闸状态。
在图1a和图1b所示的结构中，由合闸状态切换为分闸状态时，断路器由有电流切换为无电流的转变过程中，动触板02与静触板03之间会产生朝断路器的顶面方向喷出的电弧(图1b所示的带有箭头的虚线示意电弧)，一般飞弧距离为35mm以上，也就是说，在相接触的动触点05和静触点04的35mm之内，不能设置其他元器件，一般通信设备用断路器沿着高度方向(如图1a和图1b所示的H方向)具有计量标准，通常为xU，其中，1U＝44.45mm，若电弧喷出的方向朝断路器的顶面，这样就可造成：该断路器沿高度方向的尺寸较大，通常断路器安装在配电单元内，当断路器沿高度方向的尺寸较大时，就会造成配电单元的高度尺寸较大，以增大该配电单元在通信机柜中所占用的空间。
发明内容
本申请的实施例提供一种断路器及配电系统，主要目的是提供一种电弧喷出的方向朝向断路器的后方，以减小高度方向尺寸的断路器。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，本申请提供了一种断路器，包括壳体、设置在壳体内的连杆机构、动触板和静触板，连杆机构与动触板连接，以控制动触板和静触板在合闸状态和分闸状态之间切换，连杆机构包括：固定板、拐臂、跳扣板组件和转向板；拐臂与固定板铰接，跳扣板组件与拐臂铰接，转向板分别与跳扣板组件铰接、与动触板铰接、以及通过转动轴与固定板铰接，转向板与跳扣板组件的铰接点、与动触板的铰接点，和与固定板的铰接点呈三角形布设；动触板上具有条形孔，动触板与静触板相接触的面为触平面，条形孔的延伸方向与触平面不平行，转动轴穿过条形孔，且动触板能够相对转动轴沿条形孔的延伸方向移动。
本申请提供的断路器中，由于连杆机构包括固定板、拐臂、跳扣板组件和转向板， 相比现有技术，增加了转向板，该转向板均与跳扣板组件、动触板和固定板铰接，且转向板与跳扣板组件的铰接点、与动触板的铰接点，和与固定板的铰接点呈三角形布设，并且在动触板上开设与触平面不平行的条形孔，这样就可限定动触板转动的角度，以及转动的方向。当将该连杆机构沿断路器的长度方向布设时，即动触板和静触板靠近壳体的后方时，通过将条形孔的延伸方向与触平面不平行设置，以使动触头在与静触头分闸时，通过条形孔的限位，动触头不会转动至朝向壳体的顶部方向，而是朝向壳体的后方，进而分闸时电弧产生的气体也会喷向断路器的后方。所以，本申请通过增加转向板，实现断路器朝后端喷弧的目的，这样相比朝断路器的顶部喷弧，会相对应的减小断路器高度方向的尺寸，一般，断路器的后方不与其他设备连接，这样也可以避免排出的气体对与断路器相邻的设备造成损坏。
在第一方面可能的实现方式中，条形孔的延伸方向与触平面相垂直。通过使条形孔的延伸方向与触平面相垂直，确保动触板和静触板在分闸阶段、合闸阶段，以及超行程阶段和开距阶段，动触板均相对转向板做旋转运动，保障动触板的超行程和开距的稳定性，以提高整个断路器工作的稳定性。
在第一方面可能的实现方式中，转向板包括：相对的第一板和第二板，第一板和第二板通过连接板连接；第一板和第二板上均开设有呈三角形布设的第一铰接孔、第二铰接孔和第三铰接孔，转动轴穿过第一板上的第一铰接孔和第二板上的第一铰接孔，并穿过动触板上的条形孔，第二铰接孔内设置有第一铰接轴并与跳扣板组件铰接，第三铰接孔内设置有第二铰接轴并与动触板铰接。该转向板的结构简单，制造工艺也相对的简单，不会因为连杆机构增加转向板而增加制造难度。
在第一方面可能的实现方式中，动触板的与转向板铰接的部分位于相对的第一板和第二板之间，跳扣板组件的与转向板铰接的部分位于相对的第一板和第二板之间。通过将动触板的与转向板铰接的部分位于相对的第一板和第二板之间，以及跳扣板组件的与转向板铰接的部分位于相对的第一板和第二板之间，即合理利用第一板和第二板之间的空间，不会占用壳体内的其他位置。
在第一方面可能的实现方式中，壳体具有相对的底面和顶面、位于底面和顶面之间且相对的前侧面和后侧面，拐臂、跳扣板组件、转向板和动触板由前侧面至后侧面的方向布设，动触板和静触板分闸时产生的电弧能够喷向后侧面，后侧面上开设有排气孔，排气孔用于将动触板和静触板分闸时电弧产生的气体排出。通过将拐臂、跳扣板组件、转向板和动触板由前侧面至后侧面的方向布设，这样动触板和静触板在分闸时产生的电弧会喷向壳体的后侧面方向，并通过开设在壳体的后侧面上的排气孔将电弧所产生的气体排出。
在第一方面可能的实现方式中，还包括灭弧栅片和引弧板，灭弧栅片设置在壳体内的对应动触板的位置处，且靠近壳体的后侧面；引弧板设置在灭弧栅片的靠近底面的一侧，引弧板包括平板段和折弯段，平板段安装在静触板上，折弯段朝灭弧栅片方向折弯。由于引弧板包括平板段和折弯段，折弯段朝灭弧栅片方向折弯，以使飞溅到折弯段上的电弧，经过折弯段可以反射到灭弧栅片处，以阻挡电弧飞溅到壳体中的其它位置处，对壳体中的部件形成保护作用，可以提高断路器的使用寿命。
在第一方面可能的实现方式中，还包括吸弧板，吸弧板设置在灭弧栅片的靠近顶 面的一侧，吸弧板由金属材料制得，且吸弧板上开设有过滤孔。通过吸弧板上的过滤孔过滤电弧中的带电颗粒，以防止带电颗粒从排气孔排出，影响其他设备。
在第一方面可能的实现方式中，吸弧板包括相对折的第一过滤板和第二过滤板，第一过滤板上的网孔与第二过滤板上的网孔相互错开。也就是说，第一过滤板上的网孔与第二过滤板上的非网孔处相对，第一过滤板上的非网孔处于第二过滤板上的网孔相对。通过具有第一过滤板和第二过滤板的双重过滤，可以进一步减少带电颗粒从壳体中排出。
在第一方面可能的实现方式中，还包括：卡扣，能够相对壳体沿第一方向在伸出位置和收回位置之间移动，在卡扣位于伸出位置时，卡扣位于壳体的外部且用于与配电单元卡接，在卡扣位于收回位置时，卡扣位于壳体的内部，以与配电单元脱离；牵拉件，能够相对壳体沿第二方向移动，第二方向与第一方向垂直，牵拉件具有相对的第一端部和第二端部，第一端部位于壳体内，第二端部位于壳体外，在卡扣位于伸出位置时，第一端部与卡扣抵接，在卡扣位于收回位置时，第一端部与卡扣分离；第一弹性件，能够对牵拉件施加弹力，使第一端部与卡扣抵接对卡扣施加朝向壳体外部的推力；第二弹性件，能够对卡扣施加弹力，在牵拉牵拉件，第一端部脱离卡扣的情况下，第二弹性件能够使卡扣由收回位置恢复至伸出位置。
第一弹性件对牵拉件的拉力下，以使牵拉件对卡扣施加推力，卡扣处于伸出位置，即卡扣就可以与配电单元实现卡接，当朝壳体的外部拉动牵拉件时，牵拉件对卡扣的推力消失，卡扣就会移动至收回位置，在第二弹性件的作用下，能够使卡扣由收回位置恢复至伸出位置，以便进行下次的卡接，所以，本申请实施例提供的断路器能够与配电单元实现卡接式插拔，相比采用螺栓等连接件固定的方式，拆装方便，尤其是方便在现场更换、维护断路器。
在第一方面可能的实现方式中，卡扣包括第一卡扣和第二卡扣，第一卡扣和第二卡扣相对布设在牵拉件的两侧，第一卡扣的位于壳体内的一端和第二卡扣的位于壳体内的一端通过第二弹性件连接。采用相对布设的第一卡扣和第二卡扣，能够使断路器与配电单元的卡接更牢固。
在第一方面可能的实现方式中，壳体上开设有插孔，插孔用于插接在配电单元的卡板上，插孔内设置有第三弹性件，第三弹性件的弹形变形能够使卡板卡紧在插孔内。通过在壳体上开设插孔，以及在插孔内设置第三弹性件，实现断路器与配电单元的插接，这样就可进一步提高断路器与配电单元的连接强度。
在第一方面可能的实现方式中，壳体上设置有第一进线端和第二进线端、第一出线端和第二出线端、第一转接端和第二转接端，第一转接端用于通过第一转接金属片与另一个断路器的第一转接端电连接，第二转接端用于通过第二转接金属片与另一个断路器的第二转接端电连接；壳体内设置有第一金属汇流板和第二金属汇流板，第一金属汇流板电连接第一进线端、第一转接端和位于壳体内的本地输出端子，第二金属汇流板电连接第二进线端、第二转接端和静触板。
通过第一金属汇流板电连接第一进线端、第一转接端和位于壳体内的本地输出端子，第二金属汇流板电连接第二进线端、第二转接端和静触头，以形成1P+N(N极为直通)的断路器，又因为该断路器设置有第一转接端和第二转接端，该第一转接端可 以直接通过第一转接金属片与另一个断路器(称为第二断路器)上的第一转接端电连接，该第二转接端可以直接通过第二转接金属片与第二断路器上的第二转接端电连接，以将电流分流至第二断路器上，实现分流功能。与现有技术中的配电单元与连接器电连接，再通过结构各异的转接铜排与各个断路器连接，以实现分流相比，本申请实施例提供的断路器，一是不需要连接器来实现分流，二是不需要用于连接连接器和各个断路器的且结构各异的转接铜排，而是采用第一转接金属片和第二转接金属片连接每两个断路器，就实现了分流。
在第一方面可能的实现方式中，第一进线端和第二进线端，第一转接端和第二转接端均设置在顶面上，第一出线端和第二出线端设置在前侧面上。在具体使用时，将该断路器安装在位于网络机柜中的配电单元的内部时，配电单元靠近网络机柜的顶部位置，第一进线导线和第二进线导线从网络机柜的顶部伸入，直接与位于顶面上的第一进线端和第二进线端电连接(形成上进线)，负载的连接导线直接与前侧面的第一出线端和第二出线端电连接(形成前出线)，相比现有的上进线(第一进线端和第二进线端位于壳体的上表面)和下出线(第一出线端和第二出线端位于壳体的下表面)，会减小沿网络机柜中的配电单元的高度方向上的尺寸，相比现有的后进线(第一进线端和第二进线端位于壳体的侧表面)和后出线(第一出线端和第二出线端也位于壳体的侧表面)，会避免与配电单元连接的进线导线在布线时出现折弯以占用较多安装空间的现象，所以，本申请实施例提供的断路器会减小安装空间。
在第一方面可能的实现方式中，还包括：第一锁紧件和/或第二锁紧件；第一锁紧件用于将第一转接金属片紧固在第一转接端上，并能够将第一进线导线紧固在第一进线端上；第二锁紧件用于将第二转接金属片紧固在第二转接端上，并能够将第二进线导线紧固在第二进线端上。通过设置第一锁紧件能够将第一转接金属片和将第一进线导线紧固，第二锁紧件能够将第二转接金属片和将第二进线导线紧固，以提高安装效率。
在第一方面可能的实现方式中，第一锁紧件包括：第一螺杆、第一金属压板和第一金属接线框，第一螺杆的相对两端中的第一端位于壳体外，第二端穿过第一金属汇流板的第一端上的通孔伸至壳体内，第一金属汇流板的第一端为第一金属汇流板的插入第一转接端内的一端；第一金属压板设置在靠近第一螺杆的第一端的位置处，且第一金属压板与第一螺杆相对固定，第一金属压板位于第一金属汇流板的第一端和第一螺杆的第一端之间；第一金属接线框设置在靠近第一螺杆的第二端的位置处，第一金属接线框内形成有空腔，第一金属汇流板的第二端伸入至空腔内，以使空腔形成第一空腔和第二空腔，第一螺杆的第二端穿过第一金属接线框伸入至第一空腔，且第一金属接线框与第一螺杆螺纹配合，第二空腔能够供第一进线导线插入，第一金属汇流板的第二端为第一金属汇流板的插入第一进线端内的一端。当转动第一螺杆的第一端时，第一螺杆能够带动第一金属压板移动以将插入第一转接端内的第一转接金属片压紧，且也能够带动第一金属接线框移动以将插入第一进线端内的第一进线导线压紧，即通过转动第一螺杆实现对第一转接金属片和第一进线导线的固定。
在第一方面可能的实现方式中，还包括第一绝缘遮挡板，第一绝缘遮挡板与第一金属压板连接，在第一螺杆沿其延伸方向移动时，能够带动第一金属压板和第一绝缘 遮挡板同步移动以使第一绝缘遮挡板移动并遮挡住第一转接端的开口。在未插入第一转接金属片时，第一绝缘遮挡板能够遮挡住第一转接端，提高该断路器的安全性能。
第二方面，本申请提供了一种配电系统，包括：配电单元和多个上述第一方面或第一方面的任一实现方式中的断路器，多个断路器设置在配电单元内，且多个断路器并排布设。
本申请提供的配电系统中，由于断路器采用了上述第一方面的任一实施方式中的断路器，因为该断路器的连杆机构不仅包括固定板、拐臂、跳扣板组件，还包括转向板，通过设置转向板，以及在动触板上设置条形孔，以限定动触板转动的角度和转动的方向，当将该连杆机构沿断路器的长度方向布设时，即动触板和静触板靠近壳体的后方时，通过将条形孔的延伸方向与触平面不平行设置，以使动触头在与静触头分闸时，通过条形孔的限位，动触头不会转动至朝向壳体的顶部方向，而是朝向壳体的后方，进而分闸时电弧产生的气体也会喷向断路器的后方，避免了飞弧在高度方向所占用的空间，以实现配电系统的小型化。
在第二方面可能的实现方式中，壳体具有相对的底面和顶面、位于底面和顶面之间且相对的前侧面和后侧面，拐臂、跳扣板组件、转向板和动触板由前侧面至后侧面的方向布设，壳体的后侧面朝向配电单元的后壁。通过将拐臂、跳扣板组件、转向板和动触板由前侧面至后侧面的方向布设，这样动触板和静触板在分闸时产生的电弧会喷向壳体的后侧面方向。
在第二方面可能的实现方式中，壳体上设置有第一进线端和第二进线端、第一出线端和第二出线端、第一转接端和第二转接端时，配电单元通过第一进线导线与第一进线端电连接，以及通过第二进线导线与第二进线端电连接；配电系统还包括第一转接金属片，电连接相邻两个断路器的第一转接端；第二转接金属片，电连接相邻两个断路器的第二转接端。通过第一转接金属片和第二转接金属片实现电流的分流，这样就不需要再在断路器的外部连接起到分流作用的连接器了，简化了整个配电系统的结构。
附图说明
图1a为现有技术中断路器处于合闸时的工作状态示意图；
图1b为现有技术中断路器处于分闸时的工作状态示意图；
图2为本申请实施例提供的断路器的一种工作状态示意图；
图3为本申请实施例提供的断路器的另一种工作状态示意图；
图4为本申请实施例提供的断路器的另一种工作状态示意图；
图5为本申请实施例提供的动触板的结构示意图；
图6为本申请实施例提供的转向板的结构示意图；
图7为本申请实施例提供的连杆机构和动触板的连接关系示意图；
图8为本申请实施例提供的断路器的内部结构示意图；
图9为本申请实施例提供的灭弧栅片、引弧板和吸弧板的连接关系示意图；
图10为本申请实施例提供的引弧板与灭弧栅片的位置关系示意图；
图11为本申请实施例提供的吸弧板的结构示意图；
图12为本申请实施例提供的断路器的外形结构示意图；
图13为本申请实施例提供的断路器的内部结构示意图；
图14为本申请实施例提供的断路器的内部结构示意图；
图15为本申请实施例提供的第一金属汇流板的结构示意图；
图16为本申请实施例提供的第一螺杆、第一金属接线框、第一金属汇流板和第一金属压板的连接关系示意图；
图17为图16的另一个视角图；
图18为本申请实施例提供的卡扣、牵拉件和第一弹性件，以及第二弹性件的连接关系示意图；
图19为本申请实施例提供的配电系统的结构示意图。
附图标记：
01-连杆机构；02-动触板；03-静触板；04-静触点；05-动触点；1-连杆机构；11-固定板；12-拐臂；13-跳扣板组件；131-跳扣板；132-跳扣板支架；133-锁扣半轴；14-转向板；141-第一板；142-第二板；143-连接板；144-第一铰接孔；145-第二铰接孔；146-第三铰接孔；15-第一铰接轴；16-第二铰接轴；17-转动轴；2-动触板；201-条形孔；3-静触板；4-壳体；401-底面；402-顶面；403-前侧面；404-后侧面；405-排气孔；406-第一进线端；407-第二进线端；408-第一转接端；409-第二转接端；410-第一出线端；411-第二出线端；501-第一金属压板；502-第一绝缘遮挡板；6-第一螺杆；7-第一金属接线框；701-第一空腔；702-第二空腔；8-第一金属汇流板；801-第一端；802-第二端；803-第三端；804-散热板；9-牵拉件；101-第一卡扣；102-第二卡扣；11-限位销；12-限位槽；13-第一弹性件；14-第二弹性件；15-插孔；16-第三弹性件；17-第一锁止弹性件；18-第二金属汇流板；181-第一端；182-第二端；183-第三端；191-第二金属压板；192-第二绝缘遮挡板；20-第二螺杆；21-第二金属接线框；22-配电单元；221-第一卡槽；222-第二卡槽；23-卡板；24-第一转接金属片；25-第二转接金属片；26-第一进线导线；27-第二进线导线；28-灭弧栅片；29-引弧板；291-平板段；292-折弯段；30-吸弧板；301-过滤孔。
具体实施方式
本申请实施例涉及断路器及配电系统，下面结合附图对断路器及配电系统进行详细描述。
一方面，本申请实施例提供了一种断路器，参照图2、图3和图4，该断路器包括壳体(图2、图3和图4中未显示)、设置在壳体内的连杆机构1、动触板2和静触板3，连杆机构1与动触板2连接，以控制动触板2和静触板3在合闸状态和分闸状态之间切换。
连杆机构1包括：固定板11、拐臂12、跳扣板组件13和转向板14；其中，拐臂12与固定板11铰接，跳扣板组件13与拐臂12铰接，转向板14分别与跳扣板组件13铰接、与动触板2铰接、以及通过转动轴17与固定板11铰接。转向板14与跳扣板组件13的铰接点、转向板14与动触板2的铰接点，转向板14和与固定板11的铰接点呈三角形布设(如图2所示)。动触板2上具有条形孔201(如图5所示)，动触板2 与静触板3相接触的面为触平面(如图3所示的B面)，条形孔201的延伸方向与触平面B面不平行，转动轴17穿过条形孔201，且动触板2能够相对转动轴17沿条形孔201的延伸方向移动。
如图2所示，转向板14通过第一铰接轴15与跳扣板组件13铰接，转向板14通过第二铰接轴16与动触板2铰接。第一铰接轴15、第二铰接轴16与转动轴17相平行布设。
下面结合图2、图3和图4对断路器的合闸过程和分闸过程详细描述。
由图2至图4为该连杆机构1带动动触板2和静触板3的合闸过程，具体为：处于分闸状态时，动触板2与静触板3分离，且转动轴17与条形孔201的第一端抵接，参照图2和图3，拐臂12沿第一旋转方向(逆时针方向)转动时，跳扣板组件13相对拐臂12转动，转向板14也相对跳扣板组件13绕第一铰接轴15转动，转向板14相对固定板11绕转动轴17转动，动触板2相对转向板14绕第二铰接轴16转动，直至动触头2与静触头3接触，该阶段为开距阶段，在该阶段动触板2和静触板3仅接触，其之间还没有挤压力。参照图3和图4，随着拐臂12继续转动，动触板2在转向板14的作用下，相对转动轴17沿如图4中的P1方向移动，随着动触板2的移动，动触板2与静触板3之间的挤压力逐渐增大，直至动触板2与静触板3电连接，该阶段为合闸阶段。
由图4至图2为该连杆机构1带动动触板2和静触板3的分闸过程，具体为：处于合闸状态时，动触板2与静触板3抵接，参照图4和图3，拐臂12沿第二旋转方向(顺时针方向)转动时，带动跳扣板组件13转动，跳扣板组件13带动转向板14绕第一铰接轴15转动，动触板2在转向板14的作用下，相对转动轴17沿与如图4中的P1方向相反的方向移动，随着动触板2的移动，动触板2与静触板3之间的挤压力逐渐减小，当转动轴17与条形孔201的第一端抵接时，动触板2与静触板3之间的挤压力减小至零，该阶段为超行程阶段，在该阶段动触板2和静触板3还处于接触状态。参照图3和图2，随着拐臂12的继续转动，跳扣板组件13相对拐臂12转动，转向板14也相对跳扣板组件13绕第一铰接轴15转动，转向板14相对固定板11绕转动轴17转动，动触板2相对转向板14绕第二铰接轴16转动，直至动触板2与静触板3分离，该阶段为分闸阶段。
需要说明的是：超行程是指动触板从合闸位置到刚分闸位置之间的距离，开距是指动触板从分闸位置到刚合闸位置之间的距离。
与现有的断路器相比，本申请提供的断路器中的连杆机构增加了转向板，且使得转向板与跳扣板组件的铰接点、转向板与动触板的铰接点，转向板和与固定板的铰接点呈三角形布设，且通过在动触板上开设与触平面不平行的条形孔，以限定动触板的转动方向和转动角度。
参照图2、图3和图4，以及图9，在一些实施方式中，壳体4具有相对的底面401和顶面402、位于底面401和顶面402之间且相对的前侧面403和后侧面404，拐臂12、跳扣板组件13、转向板14和动触板2由前侧面至后侧面的方向布设，这样动触板2和静触板3分闸时喷出的电弧会朝向断路器的后方(如图2所示)，相比朝断路器的顶部喷弧，会相对应的减小断路器高度方向的尺寸(如图2所示的H)。
参照图7，本实施例提供的跳扣板组件13包括跳扣板131、跳扣板支架132和锁扣半轴133，其中，跳扣板131与跳扣板支架132铰接，锁扣半轴133与跳扣板支架132铰接。
在一些实施方式中，条形孔201的延伸方向与触平面相垂直。这样设计所达到的技术效果为：能够保障动触板的超行程和开距的稳定性。
也就是说，条形孔201的延伸方向与触平面相垂直时，不会出现下述现象：在该断路器第一次工作时，动触板的超行程为M1，动触板与静触板之间的挤压力为X1，在第二次工作时，动触板的超行程改变为M2，动触板与静触板之间的挤压力变为X2，M1与M2不相等，会导致X1与X2不相等，从而引起动触板与静触板之间的接触电阻不一致，最终导致动触板与静触板之间的触点的温升不稳定，甚至导致熔焊或者起火等严重事故现象，影响断路器的性能。
在一些实施方式中，参照图6，转向板14包括：相对的第一板141和第二板142，第一板141和第二板142通过连接板143连接，第一板141和第二板142上均开设有呈三角形布设的第一铰接孔144、第二铰接孔145和第三铰接孔146，转动轴穿过第一板141上的第一铰接孔144和第二板142上的第一铰接孔144，并穿过动触板上的条形孔，第二铰接孔145内设置有第一铰接轴并与跳扣板组件铰接，第三铰接孔146内设置有第二铰接轴并与动触板铰接。当然，转向板14也可以为其他结构。任何结构的转向板均在本申请的保护范围之内。
为了尽可能的减小断路器的体积，以合理利用断路器内的空间，参照图7，动触板2的与转向板14铰接的部分位于相对的第一板141和第二板142之间，跳扣板组件13的与转向板14铰接的部分位于相对的第一板141和第二板142之间。也就是说，将动触板和跳扣板组件设置在相对的第一板和第二板之间，以充分利用第一板和第二板之间的空间，相比将动触板和跳扣板组件设置在第一板和第二板之间，一是会避免占用其他结构的空间，二是对于加工精度要求较高的跳扣板组件，改动量较小，不会因为对跳扣板组件尺寸改动较大，而影响断路器工作的稳定性。
动触板2和静触板3在分闸的过程中，有电流经过切换为无电流经过的过程中，动触板2与静触板3之间会产生电弧，为了避免电弧造成的危险，相应的，如图8所示，壳体4的对应动触板2的位置处安装有灭弧栅片28，灭弧栅片28靠近后侧面404，壳体4的后侧面404上开设有排气孔405。这样电弧产生的气体可以朝后排出，在断路器的高度方向上，不需要再预留35mm左右的飞弧距离，进而减小断路器的沿高度方向的尺寸。
为了避免电弧飞溅到壳体4的其他位置处，参照图9，该断路器还包括引弧板29，引弧板29设置在灭弧栅片28的靠近底面401的一侧。飞溅到引弧板29上的电弧，经过引弧板29可以反射至灭弧栅片28，这样通过引弧板29可以防止电弧飞溅到壳体内的其他结构上，进而引弧板对其他结构起到保护作用。
引弧板29的结构具有多种情况，示例的，参照图10，引弧板29包括平板段291和折弯段292，平板段291安装在静触板3上，折弯段292朝灭弧栅片28方向折弯。再示例的，引弧板包括平板段。
当引弧板29包括平板段291和折弯段292时，平板段291位于灭弧栅片28的下 面，能够对飞溅至其上的电弧朝上反射，且折弯段292位于灭弧栅片28的侧面，能够从侧面将电弧反射至灭弧栅片28上，所以，通过平板段291和折弯段292能够从多个角度将电弧反射至灭弧栅片上，进一步提高该断路器的安全性能。
为了避免电弧中的带电颗粒影响壳体内的其他结构，或者为了避免电弧中的带电颗粒从排气孔排出，而影响其它设备，该断路器还包括吸弧板30，吸弧板30设置在灭弧栅片28的靠近顶面的一侧，吸弧板30由金属材料制得，且吸弧板30上开设有过滤孔301，通过过滤孔301过滤电弧中的带电颗粒。
在一些实施方式中，参照图11，吸弧板30包括相对折的第一过滤板和第二过滤板，第一过滤板上的网孔与第二过滤板上的网孔相互错开。也就是说，第一过滤板上的网孔与第二过滤板上的非网孔处相对，第一过滤板上的非网孔处于第二过滤板上的网孔相对。通过具有第一过滤板和第二过滤板的双重过滤，可以进一步减少带电颗粒从壳体中排出。
参照图12，壳体4上开设有第一进线端406和第二进线端407、第一出线端410和第二出线端411、第一转接端408和第二转接端409，第一转接端408用于通过第一转接金属片与另一个断路器的第一转接端408电连接，第二转接端409用于通过第二转接金属片与另一个断路器的第二转接端409电连接。
壳体4内设置第一金属汇流板8(如图13所示)，以及第二金属汇流板18(如图14所示)，第一金属汇流板8电连接第一进线端406、第一转接端408和位于壳体内的本地输出端子，第二金属汇流板18电连接第二进线端407、第二转接端409和静触头3。这样就形成1P+N(N极直通)的断路器。
由于在壳体4上开设有第一转接端408和第二转接端409，参照图19，在具体使用时，第一转接端408可以通过第一转接金属片24与另一个断路器的第一转接端408电连接，第二转接端409可以通过第二转接金属片25与另一个断路器的第二转接端409电连接，这样就实现了电流分流。也就是说，通过第一转接金属片和第二转接金属片就可以将电流从一个断路器分流至另一个断路器上。
示例的，采用第一转接金属片和第二转接金属片连接第一断路器和第二断路器，配电单元通过第一进线导线和第二进线导线与第一断路器连接，第一断路器与第一负载连接，第二断路器与第二负载连接，第一断路器的动触板与静触板处于合闸状态和第二断路器的动触板与静触板处于合闸状态时，配电单元通过第一进线导线和第二进线导线向第一断路器供电，进而向相对应的第一负载供电，同时通过第一转接金属片和第二转接金属片将电流分流至第二断路器上，以向第二负载供电。
第一进线端406和第二进线端407、第一出线端410和第二出线端411、第一转接端408和第二转接端409在壳体4上开设的位置具有多种情况。
在使用时，参照图19，该断路器插入在配电单元22的内部，通过配电单元22向断路器供电，且一般配电单元22安装在网络机柜的靠近顶部的位置处，安装空间也较小。
为了尽可能的减小安装空间，参照图12，第一进线端406和第二进线端407，第一转接端408和第二转接端409均开设在顶面402上，第一出线端410和第二出线端411位于前侧面403上，第一进线端406和第二进线端407位于顶面的第一端部，第 一转接端408和第二转接端409位于顶面的第二端部，第一端部与第二端部相对。这样设计所产生的技术效果为：若将本申请实施例提供的该种结构的断路器安装在配电单元内后，顶面朝网络机柜的顶部方向，可以直接将第一进线导线和第二进线导线与位于该顶面上方的配电单元的出线端子电连接，这样形成的进线方式可以称为上进线，不需要将第一进线导线和第二进线导线弯折，相比将第一进线导线和第二进线导线折弯的连接方式，减小第一进线导线和第二进线导线所占用的空间；另外，将第一出线端410和第二出线端411位于前侧面上，即朝向负载的方向，这样直接利用连接导线将负载与断路器电连接，这样形成的出线方式可以称为前出线，沿柜体的高度方向，断路器和配电单元不会占用较大的空间。
当然，在具体实施时，配电单元22也有可能安装在网络机柜的靠近底部的位置处，这样顶面朝网络机柜的底部方向。
另外，参照图12，第一转接端408和第二转接端409也开设在顶面上，在使用时，参照图19，多个断路器并排布设，可以直接利用第一转接金属片24将一个断路器上的第一转接端408与另一个断路器的第一转接端408电连接，利用第二转接金属片25将一个断路器上的第二转接端409与另一个断路器的第二转接端409电连接，第一转接金属片和第二转接金属片就可以设计成平板状结构，结构简单，不需要折弯，占用的空间也小。
在一些实施方式中，参照图15，第一金属汇流板8具有相连接的第一端801、第二端802和第三端803，第一端801位于第一转接端408内，以用于与插入第一转接端408内的第一转接金属片电连接，第二端802位于第一进线端406内，以用于与插入第一进线端406内的第一进线导线电连接，第三端803与设置在壳体4内的本地输出端子电连接。
第一金属汇流板8的结构具有多种可实现的情况，示例的，参照图15，该第一金属汇流板8包括横板和竖板，竖板连接在横板的中部，横板的两端具有第一延伸部和第二延伸部，第一延伸部和第二延伸部均朝远离竖板的方向延伸，第一延伸部形成第一端并伸入第一转接端内，第二延伸部形成第二端并伸入第一进线端内，竖板的远离横板的端部形成第三端并与本地输出端子电连接。当然，第一金属汇流板8也可以设计成其他结构，任何结构的第一金属汇流板8均在本申请的保护范围之内。
需要说明的是：竖板连接在横板的中部不仅仅指竖板连接在横板的几何中心，只要是位于横板的两端中的任何位置都可以称为竖板连接在横板的中部。
为了促使位于第一进线端内的第二延伸部与第一进线导线电接触良好，以及位于第一转接端内的第一延伸部与第一转接金属片电接触良好，参照图15，第一延伸部和第二延伸部上均具有压花结构，由于采用压花结构后，就会在搭界面上形成很多的点接触，从而提高接触的可靠性，降低搭界面的接触电阻。
在具体实施时，横板和竖板可以通过焊接结构连接，横板和竖板可以一体成型得到第一金属汇流板。本申请优先采用一体成型的第一金属汇流板，因为一体成型的第一金属汇流板相比通过焊接结构制得的第一金属汇流板，连接点较少，阻抗也会减少。
当采用如图15所示结构的第一金属汇流板8时，为了提高该第一金属汇流板8的散热效果，参照图15，该第一金属汇流板8还包括散热板804，散热板804的设计 增加了该第一金属汇流板8的散热面积，以提高该第一金属汇流板的散热效果。
在一些实施方式中，参照图14，第二金属汇流板18具有相连接的第一端181、第二端182和第三端183，第一端181位于第二转接端内，以用于与插入第二转接端内的第二转接金属片电连接，第二端182位于第二进线端内，以用于与插入第二进线端内的第二进线导线电连接，第三端183与静触头3电连接。
当第一转接金属片24插入第一转接端408后，需要对第一转接金属片进行固定，本申请实施例提供了一种紧固第一转接金属片的第一锁紧件，参照图16和图17，该第一锁紧件包括：第一螺杆6和第一金属压板501，第一螺杆6的相对两端中的第一端位于壳体外，第二端穿过第一金属汇流板8的第一端801上的通孔(图15中显示通孔)伸至壳体内；第一金属压板501设置靠近第一螺杆6的第一端的位置处，且第一金属压板501与第一螺杆6相对固定，第一金属压板501位于第一金属汇流板的第一端801和第一螺杆6的第一端之间。
当第一转接金属片插入第一转接端内后，通过转动第一螺杆，第一螺杆就会带动第一金属压板相对第一金属汇流板朝靠近第一金属汇流板的第一端方向移动，以将第一转接金属片夹紧在第一金属汇流板的第一端和第一金属压板之间。
另外，当第一进线导线插入第一进线端内后，也需要对第一进线导线进行固定，本申请实施例还提供了一种紧固第一进线导线的结构，参照图16和图17，该断路器还包括第一金属接线框7，第一金属接线框7设置在靠近第一螺杆6的第二端的位置处，第一金属接线框7内形成有空腔，第一金属汇流板的第二端802伸入至空腔内，以使空腔形成第一空腔701和第二空腔702，第一螺杆6的第二端穿过第一金属接线框伸入至第一空腔701，且第一金属接线框7与第一螺杆6螺纹配合，第二空腔702能够供第一进线导线插入。
也就是说，当转动第一螺杆时，第一螺杆6的第二端会与第一金属汇流板的第二端802抵接，以阻止第一螺杆6的移动，又因为第一螺杆与第一金属接线框为螺纹配合，当继续转动第一螺杆时，就会带动第一金属接线框朝远离第一金属压板的方向移动，以将第一进线导线夹紧在第二空腔内。
所以，本申请实施例提供的用于紧固第一转接金属片和第一进线导线的结构，是通过转动同一个第一螺杆，实现了对他们的紧固，结构简单，实施也方便。
为了提高该断路器的安全性能，防止异物插入第一转接端，造成安全隐患。参照图16和图17，该断路器还包括第一绝缘遮挡板502，第一绝缘遮挡板502与第一金属压板501连接，在第一螺杆6沿其延伸方向移动时，能够带动第一金属压板501和第一绝缘遮挡板502同步移动以使第一绝缘遮挡板502移动并遮挡住第一转接端的开口。
若需要插入第一转接金属片时，可以转动第一螺杆以带动第一金属压板移动以使第一绝缘遮挡板502从第一转接端的开口处移开，进而使第一转接端处于敞开状态。
由于第一螺杆与第一金属汇流板的第一端上的通孔为间隙配合，第一螺杆、第一金属接线框和第一金属压板沿螺杆的延伸方向上具有自由度，这样当插入第一转接金属片时，有可能会出现第一金属压板将第一转接端挡住，第一转接金属片不能顺畅的插入第一转接端的现象。
为了防止第一金属压板将第一转接端挡住，参照图16和图17，该断路器还包括 第一锁止弹性件17，第一锁止弹性件17靠近第一金属接线框7设置，第一锁止弹性件17能够对第一金属接线框7施加朝第一螺杆的第一端的弹力，以使第一金属压板与第一延伸部之间具有供第一转接金属片插入的间距D，通过设置第一锁止弹性件17，可以防止第一螺杆、第一金属接线框和第一金属压板沿螺杆的延伸方向产生移动，进而促使第一金属压板与第一延伸部之间具有固定间距D，有效保障第一转接金属片顺畅的插入。
第一锁止弹性件17的安装位置具有多种可实现的方式，示例的，参照图16和图17，第一锁止弹性件17设置在第一空腔701内，第一锁止弹性件17的一端与第一金属汇流板的第二端802连接，另一端与第一金属接线框7连接。再示例的，第一锁止弹性件17设置在第一金属接线框7的外部，第一锁止弹性件17的一端与壳体相对固定，另一端与第一金属接线框7连接。当然，第一锁止弹性件17还具有其他的安装方式，在此对第一锁止弹性件17的安装方式不做限定。
当第二转接金属片25插入第二转接端409后，需要对第二转接金属片进行固定，本申请实施例提供了一种紧固第二转接金属片的第二锁紧件，其中，第一锁紧件和第二锁紧件的结构可以相同，也可以不同，为了便于操作，本申请优选于第二锁紧件和第一锁紧件的结构相同，下面对第二锁紧件的结构进行详细描述。
参照图14，该第二锁紧件包括：第二螺杆20和第二金属压板191，第二螺杆20的相对两端中的第一端位于壳体外，第二端穿过第二金属汇流板18的第一端181上的通孔伸至壳体内；第二金属压板191设置靠近第二螺杆20的第一端的位置处，且第二金属压板191与第二螺20相对固定，第二金属压板191位于第二金属汇流板的第一端181和第二螺杆20的第一端之间。
当第二转接金属片插入第二转接端内后，通过转动第二螺杆，第二螺杆就会带动第二金属压板相对第二金属汇流板朝靠近第二金属汇流板的第一端方向移动，以将第二转接金属片夹紧在第二金属汇流板的第一端和第二金属压板之间。
参照图14，该断路器还包括第二金属接线框21，第二金属接线框21设置在靠近第二螺杆20的第二端的位置处，第二金属接线21内形成有空腔，第二金属汇流板的第二端伸入至空腔内，以使空腔形成第一空腔和第二空腔，第二螺杆20的第二端穿过第二金属接线框伸入至第一空腔，且第二金属接线框21与第二螺杆20螺纹配合，第二空腔能够供第二进线导线插入。
也就是说，当转动第二螺杆时，第二螺杆20的第二端会与第二金属汇流板的第二端抵接，以阻止第二螺杆20的移动，又因为第二螺杆与第二金属接线框为螺纹配合，当继续转动第二螺杆时，就会带动第二金属接线框朝远离第二金属压板的方向移动，以将第二进线导线夹紧在第二空腔内。
为了提高该断路器的安全性能，防止异物插入第二转接端，造成安全隐患。参照图14，该断路器还包括第二绝缘遮挡192，第二绝缘遮挡板192与第二金属压板191连接，在第二螺杆20沿其延伸方向移动时，能够带动第二金属压板191和第二绝缘遮挡板192同步移动以使第二绝缘遮挡板192移动并遮挡住第二转接端的开口。
若需要插入第二转接金属片时，可以转动第二螺杆以带动第二金属压板移动以使第二绝缘遮挡板192从第二转接端的开口处移开，进而使第二转接端处于敞开状态。
由于第二螺杆与第二金属汇流板的第一端上的通孔为间隙配合，第二螺杆、第二金属接线框和第二金属压板沿螺杆的延伸方向上具有自由度，这样当插入第二转接金属片时，有可能会出现第二金属压板将第二转接端挡住，第二转接金属片不能顺畅的插入第二转接端的现象。
为了防止第二金属压板将第二转接端挡住，该断路器还包括第二锁止弹性件，第二锁止弹性件靠近第二金属接线框21设置，第二锁止弹性件能够对第二金属接线框21施加朝第二螺杆的第一端的弹力，以使第二金属压板与第一延伸部之间具有供第二转接金属片插入的间距，通过设置第二锁止弹性件，可以防止第二螺杆、第二金属接线框和第二金属压板沿第二螺杆的延伸方向产生移动，进而促使第二金属压板与第一延伸部之间具有固定间距，有效保障第二转接金属片顺畅的插入。
第二锁止弹性件的安装位置具有多种可实现的方式，示例的，第二锁止弹性件设置在第第二接线框的第一空腔内，第二锁止弹性件的一端与第二金属汇流板的第二端连接，另一端与第二金属接线框连接。再示例的，第二锁止弹性件设置在第二金属接线框的外部，第二锁止弹性件的一端与壳体相对固定，另一端与第二金属接线框连接。
本申请实施例还提供一种将断路器与配电单元卡接的结构，下述对该卡接结构详细描述。
参照图18，卡接结构包括：卡扣(101或者102)、牵拉件9和第一弹性件13和第二弹性件14，卡扣能够相对壳体沿第一方向(第一方向为由前侧面至后侧面的方向)在伸出位置和收回位置之间移动，在卡扣位于伸出位置时，卡扣位于壳体的外部且用于与配电单元卡接，在卡扣位于收回位置时，卡扣位于壳体的内部，以与配电单元脱离，牵拉件9能够相对壳体沿第二方向移动，第二方向与第一方向垂直，牵拉件9具有相对的第一端和第二端，第一端位于壳体内，第二端位于壳体外，在卡扣位于伸出位置时，第一端与卡扣抵接，在卡扣位于收回位置时，第一端与卡扣分离，第一弹性件13能够对牵拉件9施加弹力，使第一端与卡扣抵接对卡扣施加朝向壳体外部的推力，第二弹性件14能够对卡扣施加弹力，在牵拉牵拉件9，第一端脱离卡扣的情况下，第二弹性件14能够使卡扣由收回位置恢复至伸出位置。
该卡接结构的工作原理为：在初始状态下，第一弹性件13能够对牵拉件9朝壳体内部的弹力，以使牵拉件9的第一端与卡扣抵接并对卡扣施加朝向壳体外部的推力，进而使卡扣的端部处于壳体的端部，并能够与配电单元实现卡接。当需要将与配电单元卡接的断路器移出时，朝壳体的外部的方向拉动牵拉件9，以破坏第一弹性件13对牵拉件9的弹力，这样牵拉件9的端部与卡扣脱离，对卡扣的推力消失，卡扣就会移动至壳体的内部，进而将断路器从配电单元内移出。在第二弹性件的作用下，能够使卡扣由收回位置恢复至伸出位置，以便进行下次的卡接。
断路器通过卡接结构与配电单元连接时，安装方便，并且可实现现场插拔更换断路器，不需要拆除其他结构件，就实现了断路器的插拔。
为了提高断路器与配电单元的连接强度，参照图18，卡扣包括第一卡扣101和第二卡扣102，第一卡扣101和第二卡扣102相对布设在牵拉件9的两侧，第一卡扣101的位于壳体内的一端和第二卡扣102的位于壳体内的一端通过第二弹性件连接。也可以是：第一卡扣101通过第二弹性件14与壳体连接，第二卡扣102通过第二弹性件 14与壳体连接。
通过相对布设的第一卡扣和第二卡扣与配电单元卡接，相比一个卡扣连接，会相对应的提高断路器与配电单元的连接强度。本申请对第一卡扣101和第二卡扣102的结构不做限定。
为了进一步提高断路器与配电单元的连接强度，参照图13，壳体4上开设有插孔15，插孔15用于插接在配电单元的卡板23上，插孔15内设置有第三弹性件16，第三弹性件16的弹形变形能够使卡板23卡紧在插孔15内。插孔15可以开设在壳体的与牵拉件相对的侧面上，通过在壳体上开设插15，以及在插孔15内设置第三弹性件16，实现断路器与配电单元的插接，这样就可进一步提高断路器与配电单元的连接强度。
第三弹性件16包括相对的弹片，卡板插入插孔内后，通过弹片对卡板的挤压以使卡板固定在插孔内。当然，第三弹性件16也可以是其他结构的弹性结构件。
为了促使第一卡扣101和第二卡扣102相对壳体沿第一方向移动，壳体内设置有供第一卡扣101滑动的第一滑道，也设置有供第二卡扣102滑动的第二滑道，第一滑道和第二滑道的延伸方向均平行与第一方向。
为了促使第一卡扣101和第二卡扣102顺畅的与配电单元实现卡接，第一卡扣101和第二卡扣102的与配电单元相配合的端部形成有倾斜面，利用倾斜面可使第一卡扣和第二卡扣顺畅的滑入配电单元的卡槽内。
参照图18，牵拉件9的靠近第一卡扣101的端部形成有倾斜设置的第一倾斜抵接面，第一卡扣101的靠近牵拉件9的端部也形成有与第一倾斜抵接面相配合的第二倾斜抵接面。同理，牵拉件9的靠近第二卡扣102的端部形成有倾斜设置的第三倾斜抵接面，第二卡扣102的靠近牵拉件9的端部也形成有与第三倾斜抵接面相配合的第四倾斜抵接面。其中，第一倾斜抵接面和第二倾斜抵接面，以及第三倾斜抵接面和第四倾斜抵接面可以为呈45°的倾斜面。
在牵拉牵拉件9时，为了防止将牵拉件9的第一端从壳体内拉出，该断路器还包括限位结构，限位用于阻止牵拉件的第一端滑至壳体的外部。
限位结构的实现结构具有多种情况，下面通过两种实施例解释说明。
实施例一
参照图18，限位结构包括限位槽12和限位销11，限位槽12开设在牵拉件9上，限位销11的一端与壳体相对固定，另一端位于限位槽12内，限位槽12的延伸方向平行于第二方向。
实施例二
限位结构包括限位槽和限位销，限位槽开设在壳体上，限位销的一端与牵拉件相对固定，另一端位于限位槽内，限位槽的延伸方向平行于第二方向。
另一方面，本申请实施例还提供一种配电系统，参照图19，该配电系统包括配电单元22和多个断路器，多个断路器设置在配电单元22内，且多个断路器并排布设，该断路器为上述第一方面实施例提供的断路器。
该配电系统中，断路器内的连杆机构不仅包括固定板、拐臂、跳扣板组件，还包括转向板，且转向板与跳扣板组件的铰接点、与动触板的铰接点，和与固定板的铰接 点呈三角形布设，另外，动触板上具有条形孔，条形孔的延伸方向与触平面不平行。即通过转向板，以及在动触板上开设有触平面不平行的条形孔，限定了动触板的旋转角度和旋转方向。
拐臂、跳扣板组件、转向板和动触板由前侧面至后侧面的方向布设，壳体的后侧面朝向配电单元的后壁。这样动触板和静触板在分闸时，喷出的电弧朝向断路器的后侧面，即朝向配电单元的后壁，相比现有的朝断路器的顶面喷弧，会相对应的减小断路器的高度方向的尺寸，也会相对应的减小配电系统的高度尺寸。
在一些实施方式中，壳体上设置有第一进线端和第二进线端、第一出线端和第二出线端、第一转接端和第二转接端时，配电单元22通过第一进线导线26与第一进线端电连接，以及通过第二进线导线27与第二进线端电连接，相邻两个断路器的第一转接端之间通过第一转接金属片24电连接，相邻两个断路器的第二转接端通过第二转接金属片25电连接，以实现电流的分流，不需要设置连接器，简化了整个配电系统的结构，减小占用的空间。
在一些实施方式中，断路器通过卡扣结构与配电单元卡接时，即断路器通过第一卡扣和第二卡扣与配电单元连接时，参照图19，配电单元22的相对应第一卡扣的位置处设置有第一卡槽221，配电单元22的相对应第二卡扣的位置处设置有第二卡槽222，具体实施时，通过将第一卡扣卡接在第一卡槽内，以及将第二卡扣卡接在第二卡槽内，实现断路器与配电单元的卡接。断路器安装方便，且可实现现场插拔更换断路器，不需要拆除其他结构件，就实现了断路器的插拔。
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (17)

  1. 一种断路器，包括壳体、设置在所述壳体内的连杆机构、动触板和静触板，所述连杆机构与所述动触板连接，以控制所述动触板和所述静触板在合闸状态和分闸状态之间切换，其特征在于，所述连杆机构包括：
    固定板；
    拐臂，与所述固定板铰接；
    跳扣板组件，与所述拐臂铰接；
    转向板，分别与所述跳扣板组件和所述动触板铰接，且所述转向板通过转动轴与所述固定板铰接，所述转向板与所述跳扣板组件的铰接点、与所述动触板的铰接点，和与所述固定板的铰接点呈三角形布设；
    所述动触板上具有条形孔，所述动触板与所述静触板相接触的面为触平面，所述条形孔的延伸方向与所述触平面不平行，所述转动轴穿过所述条形孔，且所述动触板能够相对所述转动轴沿所述条形孔的延伸方向移动。
  2. 根据权利要求1所述的断路器，其特征在于，所述条形孔的延伸方向与所述触平面相垂直。
  3. 根据权利要求1或2所述的断路器，其特征在于，所述转向板包括：
    相对的第一板和第二板，所述第一板和所述第二板通过连接板连接；
    所述第一板和所述第二板上均开设有呈三角形布设的第一铰接孔、第二铰接孔和第三铰接孔，所述转动轴穿过所述第一板上的第一铰接孔和所述第二板上的所述第一铰接孔，并穿过所述条形孔，所述第二铰接孔内设置有第一铰接轴并与所述跳扣板组件铰接，所述第三铰接孔内设置有第二铰接轴并与所述动触板铰接。
  4. 根据权利要求3所述的断路器，其特征在于，所述动触板的与所述转向板铰接的部分位于相对的所述第一板和所述第二板之间，所述跳扣板组件的与所述转向板铰接的部分位于相对的所述第一板和所述第二板之间。
  5. 根据权利要求1～4中任一项所述的断路器，其特征在于，所述壳体具有相对的底面和顶面、位于所述底面和所述顶面之间且相对的前侧面和后侧面，所述拐臂、所述跳扣板组件、所述转向板和所述动触板由所述前侧面至所述后侧面的方向布设，所述动触板和所述静触板分闸时产生的电弧能够喷向所述后侧面，所述后侧面上开设有排气孔，所述排气孔用于将所述动触板和所述静触板分闸时电弧产生的气体排出。
  6. 根据权利要求5所述的断路器，其特征在于，还包括：
    灭弧栅片，设置在所述壳体内的对应所述动触板的位置处，且靠近所述壳体的后侧面；
    引弧板，设置在所述灭弧栅片的靠近所述底面的一侧，所述引弧板包括平板段和折弯段，所述平板段安装在所述静触板上，所述折弯段朝所述灭弧栅片方向折弯。
  7. 根据权利要求6所述的断路器，其特征在于，还包括：
    吸弧板，设置在所述灭弧栅片的靠近所述顶面的一侧，所述吸弧板由金属材料制得，且所述吸弧板上开设有过滤孔。
  8. 根据权利要求1～7中任一项所述的断路器，其特征在于，还包括：
    卡扣，能够相对所述壳体沿第一方向在伸出位置和收回位置之间移动，在所述卡 扣位于所述伸出位置时，所述卡扣位于所述壳体的外部且用于与配电单元卡接，在所述卡扣位于所述收回位置时，所述卡扣位于所述壳体的内部，以与所述配电单元脱离；
    牵拉件，能够相对所述壳体沿第二方向移动，所述第二方向与所述第一方向垂直，所述牵拉件具有相对的第一端部和第二端部，所述第一端部位于所述壳体内，所述第二端部位于所述壳体外，在所述卡扣位于所述伸出位置时，所述第一端部与所述卡扣抵接，在所述卡扣位于所述收回位置时，所述第一端部与所述卡扣分离；
    第一弹性件，能够对所述牵拉件施加弹力，使所述第一端部与所述卡扣抵接对所述卡扣施加朝向所述壳体外部的推力，以使所述卡扣处于所述伸出位置；
    第二弹性件，能够对所述卡扣施加弹力，在牵拉所述牵拉件，所述第一端部脱离所述卡扣的情况下，所述第二弹性件能够使所述卡扣由所述收回位置恢复至所述伸出位置。
  9. 根据权利要求8所述的断路器，其特征在于，所述卡扣包括第一卡扣和第二卡扣，所述第一卡扣和所述第二卡扣相对布设在所述牵拉件的两侧。
  10. 根据权利要求1～9中任一项所述的断路器，其特征在于，所述壳体上开设有插孔，所述插孔用于插接在配电单元的卡板上，所述插孔内设置有第三弹性件，所述第三弹性件的弹形变形能够使所述卡板卡紧在所述插孔内。
  11. 根据权利要求1～10中任一项所述的断路器，其特征在于，所述壳体上设置有第一进线端和第二进线端、第一出线端和第二出线端、第一转接端和第二转接端，所述第一转接端用于通过第一转接金属片与另一个所述断路器的第一转接端电连接，所述第二转接端用于通过第二转接金属片与另一个所述断路器的第二转接端电连接；
    所述壳体内设置有第一金属汇流板和第二金属汇流板，所述第一金属汇流板电连接所述第一进线端、所述第一转接端和位于所述壳体内的本地输出端子，所述第二金属汇流板电连接所述第二进线端、所述第二转接端和所述静触板。
  12. 根据权利要求11所述的断路器，其特征在于，还包括：
    第一锁紧件和/或第二锁紧件；
    所述第一锁紧件用于将所述第一转接金属片紧固在所述第一转接端上，并能够将第一进线导线紧固在所述第一进线端上；
    所述第二锁紧件用于将所述第二转接金属片紧固在所述第二转接端上，并能够将第二进线导线紧固在所述第二进线端上。
  13. 根据权利要求12所述的断路器，其特征在于，所述第一锁紧件包括：
    第一螺杆，所述第一螺杆的相对两端中的第一端位于所述壳体外，第二端穿过所述第一金属汇流板的第一端上的通孔伸至所述壳体内，所述第一金属汇流板的第一端为所述第一金属汇流板的插入所述第一转接端内的一端；
    第一金属压板，设置在靠近所述第一螺杆的第一端的位置处，且所述第一金属压板与所述第一螺杆相对固定，所述第一金属压板位于所述第一金属汇流板的第一端和所述第一螺杆的第一端之间；
    第一金属接线框，设置在靠近所述第一螺杆的第二端的位置处，所述第一金属接线框内形成有空腔，所述第一金属汇流板的第二端伸入至所述空腔内，以使所述空腔形成第一空腔和第二空腔，所述第一螺杆的第二端穿过所述第一金属接线框伸入至所 述第一空腔，且所述第一金属接线框与所述第一螺杆螺纹配合，所述第二空腔能够供所述第一进线导线插入，所述第一金属汇流板的第二端为所述第一金属汇流板的插入所述第一进线端内的一端。
  14. 根据权利要求13所述的断路器，其特征在于，还包括：
    第一绝缘遮挡板，与所述第一金属压板连接，在所述第一螺杆沿其延伸方向移动时，能够带动所述第一金属压板和所述第一绝缘遮挡板同步移动以使所述第一绝缘遮挡板移动并遮挡住所述第一转接端的开口。
  15. 一种配电系统，其特征在于，包括：
    多个如权利要求1～14中任一项所述的断路器；
    配电单元，多个所述断路器设置在所述配电单元内，且多个所述断路器并排布设。
  16. 根据权利要求15所述的配电系统，其特征在于，所述壳体具有相对的底面和顶面、位于所述底面和所述顶面之间且相对的前侧面和后侧面，所述拐臂、所述跳扣板组件、所述转向板和所述动触板由所述前侧面至所述后侧面的方向布设，所述壳体的后侧面朝向所述配电单元的后壁。
  17. 根据权利要求15或16所述的配电系统，其特征在于，所述壳体上设置有第一进线端和第二进线端、第一出线端和第二出线端、第一转接端和第二转接端时，所述配电单元通过第一进线导线与所述第一进线端电连接，以及通过第二进线导线与所述第二进线端电连接；所述配电系统还包括：
    第一转接金属片，电连接相邻两个所述断路器的所述第一转接端；
    第二转接金属片，电连接相邻两个所述断路器的所述第二转接端。
PCT/CN2021/095001 2020-05-21 2021-05-20 一种断路器及配电系统 WO2021233399A1 (zh)

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