WO2020135410A1 - 小型断路器 - Google Patents

小型断路器 Download PDF

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Publication number
WO2020135410A1
WO2020135410A1 PCT/CN2019/127879 CN2019127879W WO2020135410A1 WO 2020135410 A1 WO2020135410 A1 WO 2020135410A1 CN 2019127879 W CN2019127879 W CN 2019127879W WO 2020135410 A1 WO2020135410 A1 WO 2020135410A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
button
jumper
locking member
button mechanism
Prior art date
Application number
PCT/CN2019/127879
Other languages
English (en)
French (fr)
Inventor
卢科军
顾翔翼
Original Assignee
浙江正泰电器股份有限公司
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
Priority claimed from CN201811623159.3A external-priority patent/CN109786186B/zh
Priority claimed from CN201811621759.6A external-priority patent/CN109637907A/zh
Application filed by 浙江正泰电器股份有限公司 filed Critical 浙江正泰电器股份有限公司
Priority to US17/418,324 priority Critical patent/US11961690B2/en
Priority to EP19904851.3A priority patent/EP3905296A4/en
Priority to AU2019412346A priority patent/AU2019412346B2/en
Priority to JP2021538497A priority patent/JP7129572B2/ja
Priority to CA3124724A priority patent/CA3124724A1/en
Priority to KR1020217022998A priority patent/KR102628345B1/ko
Publication of WO2020135410A1 publication Critical patent/WO2020135410A1/zh

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Classifications

    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/562—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam
    • H01H13/568—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam the contact also returning by some external action, e.g. interlocking, protection, remote control
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/173—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal drawer type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force

Definitions

  • the invention relates to the field of low-voltage electrical appliances, in particular to a small circuit breaker.
  • circuit breakers can effectively improve the safety and reliable operation of electrical equipment.
  • small circuit breakers as an important type of circuit breaker, have a variety of structures and tend to be miniaturized overall.
  • Existing small circuit breakers often have the following problems:
  • the purpose of the present invention is to overcome the shortcomings of the prior art, and to provide a miniature circuit breaker whose locking mechanism forms a reliable limit fit with the housing of the circuit breaker assembly position to ensure the stability and reliability of the assembly of the miniature circuit breaker.
  • the present invention adopts the following technical solutions:
  • a small circuit breaker includes a button mechanism, a circuit breaker housing and a locking mechanism; the button mechanism is provided at one end of the circuit breaker housing and slidingly cooperates with it, the locking mechanism includes a second locking member, and the second locking member pivots
  • the circuit breaker housing is provided with a second opening provided on one side of the circuit breaker, one end of the second locking member is driven to cooperate with the button mechanism, and the other end passes through the housing where the second opening is assembled with the circuit breaker Body limit coordination; when the button mechanism is pulled out of the circuit breaker housing, the button mechanism drives the second locking member to rotate, so that the second locking member and the housing of the circuit breaker assembly position are released from the limit cooperation.
  • the button mechanism includes a button head, a button body, and a first link.
  • One end of the first link is inserted into the button body and drivingly cooperates with the second locking member.
  • the button head is located on one side of the button body for user operation Button head, the first connecting rod is in transmission coordination with the button body, and when the button mechanism is pulled out of the circuit breaker housing, the first connecting rod drives the second locking member to rotate, releasing the housing of the assembly position of the second locking member and the circuit breaker Limit coordination.
  • the locking mechanism further includes a second locking spring.
  • the second locking member includes a second locking member body and second locking member protrusions and second locking member driving arms respectively provided at both ends of the second locking member body.
  • the main body of the second locking member is pivotally mounted on the circuit breaker housing, the driving arm of the second locking member is in driving cooperation with the first link, and the second locking spring protrudes the second locking member through the second opening
  • the second locking member protrudes through the second opening and cooperates with the limit of the circuit breaker assembly position housing to face the circuit breaker
  • the button mechanism is moved outside the housing, the first link drives the second locking member to drive the arm to rotate, so that the second locking member protrusion moves toward the inside of the circuit breaker housing, and the second locking member releases the housing limitation of the assembly position with the circuit breaker Bit fit.
  • the first connecting rod is a U-shaped rod
  • a transmission rod mounting platform is provided on the button body
  • one end of the first connecting rod passes through the transmission rod mounting platform and forms a protrusion on the transmission rod mounting platform
  • the first transmission rod on one side, and the first transmission rod and the second locking member are driven to cooperate.
  • the button mechanism is pulled out of the circuit breaker housing
  • the first transmission rod drives the second locking member to rotate, so that the second locking member and the circuit breaker
  • the shell at the assembly position releases the limit fit.
  • the small circuit breaker further includes an operating mechanism, a short circuit protection mechanism, an arc extinguishing mechanism, an overload protection mechanism, a moving contact and a static contact;
  • the button mechanism is drivingly connected to the operating mechanism, and the operating mechanism is connected to the moving contact , The moving contact and the static contact cooperate, the short-circuit protection mechanism and the overload protection mechanism are respectively driven to cooperate with the operating mechanism;
  • the button mechanism is provided at one end of the circuit breaker housing, and the short-circuit protection mechanism and the arc extinguishing mechanism are provided at the circuit breaker housing.
  • the operating mechanism is arranged between the button mechanism and the short-circuit protection mechanism, and the overload protection mechanism is arranged on the side of the operating mechanism and between the arc extinguishing mechanism and the button mechanism.
  • the button mechanism is drivingly connected to the operating mechanism through a first link.
  • the button mechanism drives the operating mechanism to move through the first link.
  • the operating mechanism drives the contact and the static The contact is closed; when the button mechanism is pulled toward the outside of the circuit breaker housing, the button mechanism drives the operation mechanism to move through the first link, and the operation mechanism drives the moving contact to be disconnected from the static contact.
  • the button mechanism is drivingly connected to the operating mechanism through a first link.
  • the button mechanism drives the operating mechanism to move through the first link.
  • the operating mechanism drives the contact and the static The contact is closed;
  • the operating mechanism further includes a sub-gate lever, the sub-gate lever includes a sub-gate lever connecting end and a sub-gate lever driving end, the sub-gate lever connecting end is connected to the button mechanism, and the sub-gate lever driving end is in driving cooperation with the operating mechanism
  • the small circuit breaker is in the closing state, press the button mechanism toward the circuit breaker housing, the opening lever drives the operating mechanism to move, and the operating mechanism drives the moving contact to be disconnected from the static contact.
  • the operation mechanism further includes a reset member of the button mechanism, and a guide boss and a guide slot group that are matched with the opening lever and are provided on the circuit breaker housing;
  • the guide slot group includes a first guide slot and a second The guide groove, the third guide groove, the fourth guide groove, and the fifth guide groove, the first guide groove, the second guide groove, the third guide groove, the fourth guide groove, and the fifth guide groove are connected end to end to form a guide boss A ring-shaped guide slot group; when the small circuit breaker is in the open state, press the button mechanism, the drive end of the open lever of the open lever moves from the first guide slot, through the second guide slot, into the third guide slot, the The small circuit breaker enters the closing state, and the button mechanism is released.
  • the reset member of the button mechanism drives the driving end of the opening lever through the third guiding slot into the fourth guiding slot through the button mechanism, and limits the driving end of the opening lever and the guiding boss Cooperate; press the button mechanism again, the button mechanism drives the operating mechanism to act through the driving end of the opening lever, the operating mechanism drives the button mechanism to reset, and the driving end of the opening lever drives the driving end of the opening lever from the fourth guide slot, through the fifth guide slot, into the first In a guide slot, the small circuit breaker enters the open state.
  • the operating mechanism further includes a transmission member, a second connecting rod, a locking member, a support member, a jumper member, and a first return spring
  • the transmission member and the support member are respectively pivotally arranged on the circuit breaker housing
  • the support member is elastically connected to the circuit breaker housing through the first return spring
  • the locking member and the jumper member are respectively pivotally arranged on the support member
  • the button mechanism is drivingly connected to the transmission member through the first connecting rod
  • the transmission member is connected through the second connection
  • the lever is drivingly connected with the locking fastener, and the locking fastener and the jumper are locked with each other, and the jumper is drivingly matched with the support, and the support is connected with the moving contact.
  • the operating mechanism includes a transmission member, a second connecting rod, a locking member, a support member, and a jumper member.
  • the transmission member and the support member are respectively pivotally arranged on the circuit breaker housing, and the locking member, the jumper member They are respectively pivotally arranged on the supporting member, the button mechanism is drivingly connected with the transmission member through the first connecting rod, the transmission member is drivingly connected with the locking member through the second connecting rod, the supporting member is connected with the moving contact, and the locking member is connected with the jumper
  • the button mechanism drives the operating mechanism to move through the first link, the support member drives the moving contact and the static contact to close, and the small circuit breaker enters the closing In the state, pull the button mechanism.
  • the button mechanism drives the locking member to rotate through the first connecting rod.
  • the locking member drives the operating mechanism to move.
  • the supporting member drives the moving contact to be disconnected from the static contact, and the small circuit breaker enters the open state.
  • the jumper includes a first arm of the jumper, a second arm of the jumper, and a third arm of the jumper, the first arm of the jumper is cooperating with the locker, and the jumper The second arm of the piece is driven to cooperate with the overload protection mechanism, and the third arm of the jumper is driven to cooperate with the short circuit protection mechanism.
  • the short circuit protection mechanism drives the jumper to rotate through the third arm of the jumper to make the jumper
  • the overload protection mechanism drives the jumper to rotate through the second arm of the jumper, so that the jumper and the lock are released from the lock
  • the jumper is " ⁇ " structure, the second arm of the jumper and the third arm of the jumper are in a straight line, and the first arm of the jumper is located between the second arm of the jumper and the third arm of the jumper
  • the second arm and the third arm of the jumper are perpendicular to each other;
  • the jumper further includes a jumper extension, one end of the jumper extension is connected to the second arm of the jumper, and the jumper After the free end of the extension part is touched, the jump fastener rotates and the lock fastener unlocks.
  • the outlet end is located on the side of the button mechanism, and the outlet end and the button mechanism are located at the same end of the circuit breaker housing, and the inlet end, circuit breaker protection mechanism and arc extinguishing mechanism are located in the circuit breaker housing
  • a short-circuit protection mechanism and an arc extinguishing mechanism are arranged side by side, and are located between the incoming end and the operating mechanism.
  • the incoming end is a plug-in type terminal.
  • the outlet end includes a conductive plate and an elastic member
  • the conductive plate is fixedly disposed on the circuit breaker housing
  • the elastic member includes an elastic member fixed end and an elastic member crimping end
  • the elastic member fixed end is fixedly disposed on the circuit breaker housing
  • the crimping end of the elastic member is in elastic contact with the conductive plate
  • the external wire is inserted between the crimping end of the elastic member and the conductive plate, and is pressed by the crimping end of the elastic member and the conductive plate
  • a wire insertion hole and a wire removal hole on one side, the wire insertion hole and the wire removal hole are respectively provided corresponding to the crimping end of the elastic member
  • the external wire is inserted between the crimping end of the elastic member and the conductive plate through the insertion hole
  • the thread-removing hole exerts pressure on the crimping end of the elastic piece to separate the crimping end of the elastic piece from the external wire, and the external wire can be pulled out from the
  • one end of the second locking member of the locking mechanism cooperates with the limit position of the housing of the circuit breaker assembly position, which prevents the small circuit breaker of the present invention from being pulled out by mistake, and ensures the stable and reliable operation of the circuit breaker.
  • it is conducive to improving the safety of power consumption.
  • the small circuit breaker of the present invention the reasonable planning and distribution of the circuit breaker housing not only ensures a reasonable layout and organic coordination of various mechanisms or components, but also makes full use of the space of the circuit breaker housing, It is beneficial to reduce the overall volume of the miniature circuit breaker of the present invention to meet the miniaturization development trend of electrical equipment and reduce the installation space requirement of the circuit breaker.
  • FIG. 1 is a schematic diagram of the structure of the small circuit breaker of the present invention.
  • FIG. 2 is a schematic structural diagram of a small circuit breaker of the present invention, showing the assembly relationship between the locking mechanism and the circuit breaker housing;
  • FIG. 3 is a schematic diagram of the assembly structure of the button mechanism and the locking mechanism of the present invention.
  • FIG. 4 is a schematic structural diagram of a small circuit breaker of the present invention, showing the assembly relationship between the anti-closing mechanism and the circuit breaker housing;
  • FIG. 5 is a schematic diagram of the assembly structure of the button mechanism and the anti-closing mechanism of the present invention.
  • FIG. 6 is a schematic diagram of the assembly structure of the button mechanism and the operating mechanism of the present invention.
  • FIG. 7 is a schematic structural view of part A of FIG. 6 of the present invention, showing the positional relationship between the opening lever, the guide boss, and the guide slot group in the open state of the circuit breaker;
  • FIG. 8 is a schematic structural view of the operating mechanism of the present invention.
  • FIG. 9 is a schematic structural diagram of part B of FIG. 8 of the present invention, showing the positional relationship between the opening lever, the guide boss, and the guide slot group in the closed state of the circuit breaker;
  • FIG. 10 is a schematic diagram of the movement track of the opening lever of the present invention in the guide groove group
  • FIG. 11 is a schematic structural view of the miniature circuit breaker of the present invention, showing the positional relationship between the wire insertion hole, the wire outlet, the wire end and the second baffle;
  • FIG. 12 is a schematic diagram of the assembly structure of the first baffle, linkage, button mechanism and circuit breaker housing of the present invention
  • FIG. 13 is a schematic structural view of the circuit breaker housing of the present invention, showing the assembly position of the second transmission rod;
  • 15 is a schematic diagram of the exploded structure of the indicator device of the present invention.
  • 16 is a schematic structural view of the indicator device of the present invention, showing the assembly relationship between the reset member of the indicator device and the first baffle;
  • 17 is a schematic structural view of the indicator device of the present invention, showing the assembly relationship between the linkage member and the reset member of the indicator device;
  • FIG. 18 is a schematic structural view of the circuit breaker housing of the present invention, showing various openings of the circuit breaker housing;
  • FIG. 19 is a schematic structural view of the operating mechanism of the present invention.
  • 20 is a schematic structural view of the circuit breaker housing of the present invention, which shows the structure of the installation guide positioning step;
  • 21 is a schematic structural view of a second embodiment of a small circuit breaker of the present invention.
  • FIG. 22 is a schematic structural view of an operating mechanism according to Embodiment 2 of the present invention.
  • the specific implementation of the miniature circuit breaker of the present invention will be further described below with reference to the examples given in FIGS. 1-19.
  • the miniature circuit breaker of the present invention is not limited to the description of the following embodiments.
  • the small circuit breaker of the present invention includes a circuit breaker case 2, a button mechanism 1 provided on the circuit breaker case 2 and slidingly matched with it, and an operating mechanism 5 provided in the circuit breaker case 2 and a movable contact 56, Static contact 560, short circuit protection mechanism 6, arc extinguishing mechanism 7 and overload protection mechanism 9;
  • the button mechanism 1 is connected to the operating mechanism 5 through the first connecting rod 1050, the operating mechanism 5 is connected to the moving contact 56, short circuit protection
  • the mechanism 6 and the overload protection mechanism 9 are respectively driven and cooperated with the operating mechanism 5 to trigger the circuit breaker to trip when a corresponding fault occurs, and the arc extinguishing mechanism 7 is used in conjunction with the moving contact 56 and the static contact 560.
  • the short-circuit protection mechanism 6 includes an electromagnetic release
  • the overload protection mechanism 9 includes a bimetallic strip and an adjustment screw.
  • the button mechanism 1 is provided at one end of the circuit breaker housing 2
  • the short-circuit protection mechanism 6 and the arc extinguishing mechanism 7 are both provided at the other end of the circuit breaker housing 2
  • the operation mechanism 5 is provided at the button
  • the overload protection mechanism 9 is provided on the side of the operation mechanism 5 and between the arc extinguishing mechanism 7 and the button mechanism 1. Further, as shown in FIG. 1
  • the miniature circuit breaker of the present invention further includes an outlet end 100 and an inlet end 8, the outlet end 100 is provided on the side of the button mechanism 1, and the outlet end 100 and the button mechanism 1 are located in the circuit breaker housing
  • the incoming end 8 is provided on the side of the short-circuit protection mechanism 6 and the arc extinguishing mechanism 7, and the incoming end 8, the short-circuit protection mechanism 6 and the arc extinguishing mechanism 7 are located at the same end of the circuit breaker housing 2;
  • the incoming end 8 is a plug-in type terminal. Specifically, as shown in FIG.
  • the button mechanism 1 and the outlet 100 are located at the upper end of the circuit breaker housing 2, the outlet 100 is located on the left side of the button operation mechanism 1, and the operation mechanism 5 and the overload protection mechanism 9 are located at an open circuit
  • the overload protection mechanism 9 is located on the left side of the operating mechanism 5
  • the short-circuit protection mechanism 6 the arc extinguishing mechanism 7 and the inlet end 8 are located at the lower end of the circuit breaker housing 2
  • the inlet end 8 is located in the short-circuit protection mechanism 6 and the lower side of the arc extinguishing mechanism 7.
  • the small circuit breaker of the present invention the reasonable planning and distribution of the circuit breaker housing 2 not only ensures the reasonable layout and organic coordination of various mechanisms or components, but also allows the space of the circuit breaker housing 2 to be fully By using, it is beneficial to reduce the overall volume of the miniature circuit breaker of the present invention to meet the miniaturization development trend of electrical equipment and reduce the installation space requirement of the circuit breaker.
  • the outlet end 100 and the button mechanism 1 are located at the same end of the circuit breaker housing 2, which is convenient for the user to connect and disconnect the circuit breaker, and the inlet end 8 is a plug-in type terminal, which is convenient for the circuit breaker to be connected to the main circuit. Whether it is incoming wiring or outgoing wiring, there is no need to disassemble the installation cabinet used to install the circuit breaker, which significantly improves the convenience of wiring and is also conducive to improving the safety of operation.
  • the small circuit breaker of the present invention further includes an anti-closing mechanism
  • the button mechanism 1 is provided at one end of the circuit breaker housing 2 and slidingly cooperates with it
  • the anti-closing mechanism includes a first locking member 3,
  • the first locking member 3 is pivotally arranged on the circuit breaker housing 2, one end of the first locking member 3 is locked with the button mechanism 1 to block the movement of the button mechanism 1 in the closing direction, and the small circuit breaker is assembled to the circuit breaker assembly position and After being installed in place, the housing of the circuit breaker assembly position acts on the first locking member 3, and after the first locking member 3 and the button mechanism 1 are unlocked, the button mechanism 1 can move in the closing direction to perform the closing operation.
  • the anti-closing mechanism ensures that the closing operation can be performed only after the small circuit breaker is installed in place, to avoid the situation that the circuit breaker cannot work normally due to poor contact caused by the small circuit breaker not being installed in place, and also avoid the small circuit breaker.
  • the circuit breaker and the circuit breaker assembly position are in virtual contact. During the closing operation, an arc is generated, which ablates the circuit breaker or circuit breaker assembly position and affects the service life. It also prevents users from getting an electric shock when operating the circuit breaker. Help to improve the safety of electricity.
  • the anti-closing mechanism further includes a first locking spring
  • the first locking member 3 includes a first locking member body 31 and first locking members respectively disposed at both ends of the first locking member body 31
  • the locking member protrusion 30, the first locking member stop arm 32, the first locking member body 31 is pivotally arranged on the circuit breaker housing 2, the first locking member stop arm 32 is bent and connected to the first locking member body 31, so
  • the circuit breaker housing 2 includes a first opening 203 provided on one side thereof; the first locking spring is respectively connected to the first locking member 3 and the circuit breaker housing 2, so that the first locking member stop arm 32 and the button
  • the mechanism 1 is locked and fitted, and the first locking member protrusion 30 protrudes outside the circuit breaker housing 2 through the first opening 203; the small circuit breaker is assembled to the circuit breaker assembly position and after being installed in place, the circuit breaker assembly
  • the housing in position squeezes the first locking member protrusion 30 to move into the circuit breaker housing 2, so that the first locking member stop arm 32 is
  • the locking cooperation between the button mechanism 1 and the first locking member stop arm 32 means that the button mechanism 1 cannot be locked in the closing direction after being locked (as shown in FIG. 1, the closing direction refers to (Bottom) action, and after the lock cooperation is released, the button mechanism 1 can move in the closing direction, which can open/close the small circuit breaker of the present invention.
  • the small circuit breaker of the present invention further includes a locking mechanism
  • the locking mechanism includes a second locking member 4
  • the button mechanism 1 is provided at one end of the circuit breaker housing 2 and slidingly cooperates with the circuit breaker housing 2 includes a second opening 204 provided on one side thereof
  • a second locking member 4 is pivotally provided on the circuit breaker housing 2, one end of the second locking member 4 is drivingly engaged with the button mechanism 1, and the other end passes through the second opening
  • the hole 204 cooperates with the limit of the case of the circuit breaker assembly position; when the button mechanism 1 is pulled out of the circuit breaker case 2, the button mechanism 1 drives the second locking member 4 to rotate, so that the second locking member 4 and the circuit breaker assembly position The housing releases the limit fit.
  • one end of the second locking member 4 cooperates with the limit of the housing of the circuit breaker assembly position to prevent the small circuit breaker of the present invention from being pulled out by mistake, ensure the stable and reliable operation of the circuit breaker, and prevent users from When the circuit breaker is closed, accidentally pulling out the circuit breaker will cause electric shock, which is conducive to improving the safety of electricity consumption.
  • the locking mechanism further includes a second locking spring
  • the second locking member 4 includes a second locking member body 41 and second locking members respectively provided at both ends of the second locking member body 41
  • the protrusion 40, the second locking member driving arm 42, the second locking member body 41 is pivotally disposed on the circuit breaker housing 2, and is bent and connected with the second locking member driving arm 42;
  • the circuit breaker housing 2 includes A second opening 204 provided on one side thereof;
  • the second locking spring is respectively connected to the second locking member main body 41 and the circuit breaker housing 2 so that the second locking member protrusion 40 protrudes through the second opening 204
  • the second locking member protrusion 40 passes through the second opening 204 to cooperate with the housing of the circuit breaker assembly position.
  • the locking mechanism after the miniature circuit breaker of the present invention is installed in the circuit breaker assembly position, the second locking member protrusion 40 cooperates with the limit of the housing of the circuit breaker assembly position to prevent the miniature circuit breaker of the invention from being pulled out by mistake, ensuring The stable and reliable operation of the circuit breaker also prevents users from accidentally pulling out the circuit breaker when the circuit breaker is closed, which is conducive to improving power safety.
  • the assembly position of the circuit breaker may be an installation cabinet for installing the circuit breaker.
  • the button mechanism 1 includes a button head 10, a button body 11 and a first link 1050.
  • the button head 10 is provided at one end of the button body 11 and protrudes outside the circuit breaker housing 2,
  • one end of the first link 1050 is inserted into the other end of the button body 11, one end of the first locking member 3 is locked with the end of the first link 1050 inserted into the button body 11, the second The locking member 4 is in driving engagement with an end of the first link 1050 inserted on the button body 11.
  • the first connecting rod 1050 not only serves as a transmission element between the button mechanism 1 and the operating mechanism 5, but also cooperates with the first locking member 3 and the second locking member 4, respectively, which is beneficial to simplify the structure of the button mechanism 1 and save the cost Invent the production cost of the miniature circuit breaker.
  • the first locking member body 31 of the first locking member 3 and the second locking member body 41 of the second locking member 4 are all pivotally arranged on the circuit breaker housing 2 through a first pivot 3040, which is beneficial to The assembly structure of the anti-closing mechanism and the locking mechanism is simplified, thereby saving the assembly space inside the circuit breaker housing 2 and contributing to the miniaturization of the small circuit breaker of the present invention.
  • the first locking spring and the second locking spring are an integrally structured double torsion spring 3042, which includes a first end of the double torsion spring, a second end of the double torsion spring, and a third end of the double torsion spring.
  • the first end is connected to the first lock body 31, the second end of the double torsion spring is connected to the second lock body 41, and the third end of the double torsion spring is connected to the circuit breaker housing 2.
  • the double torsion spring 3042 can be connected to the first locking member 3, the second locking member 4 and the circuit breaker housing 2 at the same time, which is beneficial to further simplify the assembly structure of the anti-closing mechanism and the locking mechanism, simplify the assembly operation, and improve the assembly efficiency .
  • the operation mechanism 5 includes a locking member 53, a supporting member 54 and a jumper member 55.
  • the supporting member 54 is pivotally disposed on the circuit breaker housing 2, and the locking member 53 And the jumper 55 are pivotally arranged on the support 54 respectively, the button mechanism 1 is drivingly connected with the operating mechanism 5, the lock 53 and the jumper 55 are lock-fitted, and the jumper 55 and the support 54 are drive-fitted,
  • the support 54 is connected to the moving contact 56 and the support 54 is connected to the moving contact 56;
  • the miniature circuit breaker of the present invention further includes a sub-branch lever 15, the sub-branch lever 15 includes a sub-branch lever connecting end and a sub-branch lever driving end, the sub-branch lever connecting end is connected to the push button mechanism 1, and the sub-branch lever driving end is connected to a jumper 55 drive coordination; when the small circuit breaker is in the open state, the locking member 53 and the jumper 55 are locked to cooperate, pressing the button mechanism 1 to drive the operating mechanism 5 to operate, the operating mechanism 5 drives the moving contact 56 and the static contact 560 is closed, the small circuit breaker enters the closing state, and at the same time, the opening lever 15 is slid to the position matched with the jumper 55; press the button mechanism 1 again, the driving end of the opening lever drives the jumper 55 to rotate, so that the jumper 55 cooperates with the lock 53 to release the lock, the operating mechanism 5 trips, the support 54 drives the contact 56 and the static contact 560 to disconnect, the small circuit breaker enters the open state, and the open lever 15
  • the locking fit between the locking member 53 and the jumper 55 means that one end of the locking member 53 overlaps the jumper 55 and restricts the movement of the jumper 55. If the overlapping relationship between the lock 53 and the jumper 55 is destroyed, the action of the jumper 55 is no longer restricted by the lock 53.
  • the small circuit breaker of the present invention can realize the opening/closing of the circuit breaker by pressing the button mechanism 1. Compared with the prior art method of using the pull button mechanism to realize the opening operation of the circuit breaker, the pull button can be avoided When the mechanism is used, the situation that the circuit breaker is pulled out from the cabinet due to the excessive force of the user occurs, which is beneficial to improve the assembly stability of the circuit breaker and improve the user experience.
  • the small circuit breaker of the present invention can also realize the opening operation by pulling the button mechanism 1 when the small circuit breaker is in the closing state, and the opening lever 15 can be pulled without affecting the button mechanism 1 Was pulled out. Further, the small circuit breaker of the present invention may not be provided with the opening lever 15, but the pull-out button mechanism 1 is used to drive the operating mechanism 5 to rotate through the dead point through the first link 1050 for opening, so that the moving contact 56 is disconnected from the stationary contact 560.
  • 21-22 shows the second embodiment of the miniature circuit breaker of the present invention.
  • the difference from the embodiment mainly lies in the scheme of not using the opening lever 15 and closing by pressing the button mechanism 1 and by pulling the button
  • the mechanism 1 realizes the opening operation, and the other structures are basically the same as the first embodiment.
  • the small circuit breaker of the second embodiment includes a circuit breaker housing 2, a button mechanism 1, and an operating mechanism 5, a short circuit protection mechanism 6, an arc extinguishing mechanism 7, an overload protection mechanism 9,
  • the button mechanism 1 slidingly cooperates with the circuit breaker housing 2 and includes a first link 1050, and the button mechanism 1 is drivingly connected to the operating mechanism 5 through the first link 1050, and the operating mechanism 5 Connected to the moving contact 56, the moving contact 56 is used in conjunction with the static contact 560, the short-circuit protection mechanism 6 and the overload protection mechanism 9 are respectively driven to cooperate with the operating mechanism 5, the arc extinguishing mechanism 7 is connected to the moving contact 56, the static contact 560 Used in conjunction; the button mechanism 1 is provided at one end of the circuit breaker housing 2, the short circuit protection mechanism 6 and the arc extinguishing mechanism 7 are provided at the other end of the circuit breaker housing 2, and the operation mechanism 5 is provided at one of the button mechanism 1 and the short circuit protection mechanism 6
  • the operating mechanism 5 includes a transmission member 51, a second connecting rod 52, a locking member 53, a support member 54 and a jumper member 55, and the transmission member 51 and the support member 54 are pivotally disposed in the circuit breaker housing 2 respectively
  • the locking member 53 and the jumper member 55 are pivotally arranged on the support member 54 respectively
  • the button mechanism 1 is drivingly connected to the transmission member 51 through the first link 1050
  • the transmission member 51 is connected to the locking member through the second link 52 53 is drivingly connected
  • the supporting member 54 is connected with the moving contact 56
  • the locking member 53 is locked with the jumper 54
  • the button mechanism 1 passes the first connection
  • the lever 1050 drives the operation mechanism 5 to move
  • the support 54 drives the contact 56 to close with the static contact 560
  • the small circuit breaker enters the closing state
  • the button mechanism 1 is pulled out
  • the button mechanism 1 drives the locking member through the first link 1050
  • the button mechanism 1 is drivingly connected to the transmission member 51 through the first link 1050, and the transmission member 51 is disposed below the button mechanism 1 and is pivotally disposed on the circuit breaker through the second pivot 510
  • the locking member 53 is pivotally arranged on the supporting member 54 through the second pivot 530
  • the transmission member 51 is drivingly connected to the locking member 53 through the second link 52
  • the supporting member 54 is arranged below the transmission member 51
  • the support member 54 is pivotally arranged on the circuit breaker housing 2 through the fourth pivot 540
  • the jumper 55 is pivotally arranged on the support member 54 through the fourth pivot 540 on.
  • the small circuit breaker of the present invention further includes an indicating device
  • the circuit breaker housing 2 includes an indicating hole provided on one side thereof, the button mechanism 1 and the circuit breaker housing 2 slidingly cooperate, and the indicating device and the button mechanism 1 are drivingly engaged,
  • the button mechanism 1 drives the indicating device to block the indicating hole.
  • the indicating device can block the indicating hole when the circuit breaker is closed to indicate the closing state of the circuit breaker, and serve as a warning to the user, prompting the user not to disconnect and wire the small circuit breaker Operation, significantly improve the safety of electricity.
  • the circuit breaker housing 2 includes at least one wire insertion hole 208 and at least one wire removal hole 201 provided on one side thereof.
  • the wire insertion hole 208 and the wire removal hole 201 are used in conjunction
  • the button mechanism 1, the wire removal hole 201, and the wire insertion hole 208 are located at the same end of the circuit breaker housing 2;
  • the small circuit breaker of the present invention further includes an indicating device, the indicating device includes at least one baffle and a linkage 7a, the middle of the linkage 7a It is pivotally arranged on the circuit breaker housing 2, one end of the linkage 7a is drivingly connected to the button mechanism 1 and the other end is driven to cooperate with the baffle; pressing the button mechanism 1 closes the small circuit breaker, and the button mechanism 1 drives the gear through the linkage 7a
  • the board moves to the thread removing hole 201 and blocks the thread removing hole 201.
  • the baffle slidingly cooperates with the circuit breaker housing 2.
  • the middle part of the linkage member 7a is pivotally arranged on the circuit breaker housing 2, the linkage member 7a includes a linkage member driven arm 71a and a linkage member driving arm 70a, and the linkage member driven arm 71a is provided with a linkage member driven arm in the middle Slot 73a, a linkage driving column 72a is provided on the linkage driving arm 70a; one end of the baffle and the linkage 7a driving and matching is provided with a groove at the driven end of the barrier; the button mechanism 1 includes a button driving column, The button driving column is drivingly connected with the slotted arm 73a of the linkage arm, and the link driving column 72a is slotted with the slotted end of the baffle.
  • the baffle slidingly cooperates with the circuit breaker housing 2.
  • the thread removal hole 201 is an indicator hole.
  • the baffle plate can be moved to the wire removal hole and cover the wire removal hole when the circuit breaker is closed, one is a warning to the user, and the user is reminded not to operate the wire removal hole.
  • the baffle blocks the hole for removing the wire, and also prevents the user from operating the hole for removing the wire, which significantly improves the safety of electricity use.
  • the circuit breaker housing 2 has a rectangular parallelepiped structure.
  • the circuit breaker housing 2 includes a front end surface and a rear end surface oppositely disposed, a left side surface and a right side surface oppositely disposed, and a relative The upper surface and the lower surface are provided; the rear end surface is provided with a wire inlet hole 21a, the front end surface is provided with an operating member mounting hole 1020 and a wire insertion hole 208, and a insertion type is provided in the wire inlet hole 21a Terminals.
  • the front end surface and the rear end surface of the circuit breaker housing 2 are respectively provided with a wire insertion hole and a wire inlet hole, and the external conductor can be directly connected with the plug-type terminal in the wire inlet hole Pulling and separating, when installing and replacing the circuit breaker, do not need too much disassembly space, and convenient disassembly.
  • the miniature circuit breaker of the present invention includes a circuit breaker housing 2, a button mechanism 1, an anti-closing mechanism, a locking mechanism, an operating mechanism 5, a short circuit protection mechanism 6, an arc extinguishing mechanism 7, and a line entry End 8, overload protection mechanism 9, moving contact 56, static contact 560 and outlet 100;
  • the button mechanism 1 is inserted in the upper end of the circuit breaker housing 2 and slidingly cooperates with the circuit breaker housing 2, the outlet 100 is provided At the upper end of the circuit breaker housing 2 and on the left side of the button mechanism 1, the short circuit protection mechanism 6, the arc extinguishing mechanism 7 and the incoming end 8 are provided at the lower end of the circuit breaker housing 2, the short circuit protection mechanism 6 and the arc extinguishing mechanism 7 are provided at the inlet
  • the upper side of the wire end 8, and the arc extinguishing mechanism 7 and the short circuit protection mechanism 6 are arranged side by side, the operating mechanism 5 and the overload protection mechanism 9 are arranged in the middle of the circuit
  • the overload protection mechanism 9 includes a bimetallic sheet and an adjustment screw.
  • the upper end of the bimetallic sheet is in driving cooperation with the jumper 55 of the operating mechanism 5, and the lower end is fixedly arranged on the circuit breaker housing 2,
  • the adjusting screw is arranged on the left side of the lower end of the bimetallic sheet, and the position of the bimetallic sheet of the overload protection mechanism can be adjusted by screwing the adjusting screw, thereby adjusting the overload current protection range of the small circuit breaker of the present invention.
  • the anti-closing mechanism includes a first locking member 3, and the first locking member 3 includes a first locking member body 31 and first locking member protrusions respectively provided at both ends of the first locking member body 31 Up 30 and the first locking member stop arm 32. As shown in FIG.
  • the first locking member 3 is pivotally arranged at the upper right corner of the circuit breaker housing 2 through a first pivot 3040 and is located on the right side of the button mechanism 1, and above the first locking member 3
  • the double torsion spring 3042, the first end of the double torsion spring and the third end of the double torsion spring 3042 are respectively connected to the first locking member body 31 of the first locking member 3 and the circuit breaker housing 2 to make the first locking member
  • the protrusion 30 protrudes outside the circuit breaker housing 2 through the first opening 203 of the circuit breaker housing 2.
  • the button mechanism 1 includes a button head 10, a button body 11 and a first link 1050.
  • the button head 10 is disposed at one end of the button body 11 and protrudes outside the circuit breaker housing 2 for user convenience
  • one end of the first connecting rod 1050 is inserted on the other end of the button body 11 and forms a first transmission rod 3041, and the first locking member stop arm 32 is locked and engaged with the first transmission rod 3041.
  • the first connecting rod 1050 is inserted on the other end of the button body 11 and forms a first transmission rod 3041, and the first locking member stop arm 32 is locked and engaged with the first transmission rod 3041.
  • the button head 10 is connected to the left end of the button body 11, the first transmission lever 3041 is provided at the right end of the button body 11, and the first locking member stop arm 32 is provided at the first transmission lever 3041
  • the first locking member stop arm 32 prevents the button mechanism 1 from moving to the right, that is, the button mechanism 1 is prevented from moving in the closing direction, and when the small circuit breaker of the present invention is assembled to the circuit breaker
  • the housing of the circuit breaker assembly position squeezes the first locking member protrusion 30 to move the first locking member protrusion 30 toward the inside of the circuit breaker housing 2, and the first locking member stop arm 32 warps From now on, the first transmission rod 3041 is no longer blocked. At this time, pressing the button mechanism 1 can make the circuit breaker close.
  • the first locking member 3 includes a first locking spring limiting protrusion 33 disposed on the side of the first locking member body 31, the first locking spring limiting protrusion 33 and the double twist
  • the first end of the double torsion spring of the spring 3042 cooperates with the limit.
  • the first locking spring limiting protrusion 33 is disposed on the rear side of the left end of the first locking member body 31, and the first end of the double torsion spring is located on the first locking spring limiting protrusion 33 The front side cooperates with its limit.
  • the button mechanism 1 includes a transmission rod mounting platform 12, the first link 1050 is a U-shaped rod, and one end of the first link 1050 is inserted into the transmission rod mounting platform 12 to form a drawing
  • the first transmission rod 3041 on the side of the mounting table 12 and the first locking member stop arm 32 of the first locking member 3 are located on the side of the transmission rod mounting table 12 and are locked to cooperate with the first transmission rod 3041, and the first locking member stop arm 32 blocks the first transmission lever 3041 from moving in the closing direction.
  • the first locking member stop arm 32 blocks the first transmission lever 3041 from moving in the closing direction.
  • the transmission rod mounting platform 12 is provided on the upper right side of the button body 11, and the left end of the first link 1050 is inserted into the transmission rod mounting platform 12 and formed to protrude on the transmission rod installation
  • the first transmission rod 3041 on the front side of the table 12 and the first locking member stop arm 32 are located on the right side of the first transmission rod 3041 and locked with it.
  • the button mechanism 1 further includes a first limiting boss 13 that is spaced apart from the transmission rod mounting table 12 and is located on the front side of the first limiting boss The boss 13 contacts and cooperates with the circuit breaker housing 2 to keep the button mechanism 1 stable when sliding in the circuit breaker housing 2 to avoid shaking.
  • the button mechanism 1 further includes a button protrusion 14.
  • the button protrusion 14 is disposed on the upper side of the button body 11 and is located on the front side of the transmission lever mounting table 12. The rear end of the button protrusion 14 Connected to the front end of the transmission rod mounting table 12.
  • the locking mechanism includes a second locking member 4, the second locking member 4 includes a second locking member body 41 and second locking member protrusions 40 provided at both ends of the second locking member body 41, respectively ⁇ Locking member drive arm 42.
  • the locking mechanism is provided at the upper right corner of the circuit breaker housing 2 and is located on the right side of the button mechanism 1.
  • the second locking member body 41 of the second locking member 4 pivots through the first pivot 3040 Reinstalled on the circuit breaker housing 2.
  • the second locking member driving arm 42 of the second locking member 4 is drivingly engaged with the first transmission rod 3041 of the first link 1050. Specifically, as shown in the direction shown in FIG.
  • the second locking member driving arm 42 is disposed on the left side of the first transmission rod 3041.
  • the small circuit breaker of the present invention is assembled to the circuit breaker assembly position and after being installed in place, the circuit breaker assembly
  • the position of the housing and the second locking body 41 are limited to cooperate, so that the circuit breaker and the circuit breaker assembly position are reliably limited and assembled.
  • the first transmission lever 3041 drives the second locking member driving arm 42 to tilt the second locking member driving arm 42 and the second locking member protrusion 40 sinks toward the inside of the circuit breaker housing 2 so that the second locking The protrusion 20 and the limit position of the circuit breaker assembly position are released, and the user can remove the circuit breaker from the circuit breaker assembly position.
  • the second locking member 4 includes a second locking spring limiting protrusion 43 provided on the side of the second locking member body 41, and the second end of the double torsion spring 3042 and The second locking spring limit protrusion 43 is limit-fitted.
  • the second locking spring limit protrusion 43 is provided on the rear side of the left end of the second lock body 41, and the second end of the double torsion spring is provided on the second lock spring limit protrusion 43 The front side cooperates with its limit.
  • the double torsion spring 3042 is installed on the circuit breaker housing 2 through a third mounting shaft 3043.
  • the double torsion spring 3042 includes a first end of the double torsion spring, a second end of the double torsion spring and The third end of the double torsion spring, the first end of the double torsion spring and the second end of the double torsion spring are arranged above the button body 11 to be substantially parallel to the button body 11, and the third end of the double torsion spring is arranged above the button body 11 to be substantially perpendicular to the double
  • the third end of the torsion spring also cooperates with the button protrusion 14 of the button mechanism 1, and the third end of the double torsion spring blocks the button protrusion 14 in the opening direction of the button mechanism 1, thereby restricting the position of the button mechanism 1 in the opening direction.
  • the first installation shaft 3043 is installed at the upper right corner of the circuit breaker housing 2.
  • the circuit breaker housing 2 further includes a third locking spring limit protrusion 210 connected to the third end of the double torsion spring.
  • the third locking spring limiting protrusion 210 is provided above the locking mechanism and the anti-closing mechanism, and is located on the left side of the first mounting shaft 3043.
  • the button mechanism 1 is provided at one end of the circuit breaker housing 2 and slidingly cooperates with it, a third locking spring limit protrusion 210, a first mounting shaft 3043, a first locking member 3, a third
  • the second locking member 4 and the double torsion spring 3042 are both disposed on the side of the button mechanism 1
  • the first mounting shaft 3043 is disposed at an inner corner of the circuit breaker housing 2
  • the third locking spring limit protrusion 210 is located on the first mounting shaft 3043
  • the first locking member 3 and the second locking member 4 are arranged side by side, and are located on the side of the third locking spring limit protrusion 210.
  • the first opening 203 is more Near the first mounting shaft 3043
  • the first pivot 3040 is located between the first opening 203 and the first mounting shaft 3043.
  • the button mechanism 1 is provided on the upper end of the circuit breaker housing 2 and slidingly cooperates with it
  • the anti-closing mechanism, the locking mechanism and the double torsion spring are all provided on the right side of the button mechanism 1, the first installation
  • the shaft 3043 is disposed at the upper right corner of the circuit breaker housing 2
  • the double torsion spring 3042 is sleeved on the first mounting shaft 3043
  • both the anti-closing mechanism and the locking mechanism are pivotally disposed in the circuit breaker housing through the first pivot 3040 2 and below the first mounting shaft 3043
  • the first locking member 3 of the anti-closing mechanism and the second locking member 4 of the locking mechanism are arranged side by side
  • the second locking member 4 is located on the inside
  • the first locking member 3 is located on the outside
  • the first opening 203 is located above
  • the operating mechanism 5 includes a transmission member 51, a second connecting rod 52, a locking member 53, a support member 54, a jumper member 55, and a first return spring 57
  • the transmission member 51 passes
  • the second pivot 510 is pivotally disposed on the circuit breaker housing 2
  • the support 54 is pivotally disposed on the circuit breaker housing 2 through the third pivot 540
  • the lock 53 is pivotally disposed on the fourth pivot 530
  • the jumper 55 is pivotally disposed on the supporting member 54 through a third pivot 540.
  • the button mechanism 1 is drivingly connected to the transmission member 51 through the first connecting rod 1050
  • the driving member 51 is drivingly connected to the locking member 53 through the second connecting rod 52.
  • the locking member 53 and the jumper member 55 are locked with each other and jump
  • the fastener 55 is drivingly engaged with the support 54, and the support 54 is connected to the moving contact 56.
  • the anti-closing mechanism can also be combined with the operating mechanism 5 Locking fit (not shown in the figure) to prevent the operating mechanism 5 from being operated and closed.
  • the housing of the circuit breaker assembly position Triggering the rotation of the first locking member 3 causes the first locking member 3 to contact and lock with the supporting member 54 of the operating mechanism 5, so that the button mechanism 1 can move in the closing direction and drive the operating mechanism 5 to perform the closing operation.
  • the operation mechanism 5 further includes a brake lever 15, a reset member 10a of the button mechanism, a guide boss 20, and a guide slot group.
  • the opening lever 15 includes a connecting end of the opening lever and a driving end of the opening lever, the connecting end of the opening lever is connected to the button mechanism 1, and the driving end of the opening lever is in driving cooperation with the jumper 55.
  • the wire boss 20 is provided on the circuit breaker housing 2, as shown in FIGS. 7 and 9, the guide slot group includes a first guide slot 21, a second guide slot 22, a third guide slot 23, and a fourth guide The groove 24, the fifth guide groove 25, the first guide groove 21, the second guide groove 22, the third guide groove 23, the fourth guide groove 24 and the fifth guide groove 25 are connected end to end to form an annular guide around the guide boss 20 Slot group.
  • FIG. 10 shows the movement trajectory of the driving end of the opening lever 15: the small circuit breaker of the present invention, from the opening state to the closing state, the broken line abcd basically describes the driving end of the opening lever Movement trajectory; the small circuit breaker of the present invention basically describes the movement trajectory of the driving end of the opening lever from the closing state to the opening state.
  • the first guide groove 21 includes a first guide groove bottom surface
  • the second guide groove 22 includes a second guide groove bottom surface
  • the third guide groove 23 includes a third guide groove bottom surface
  • a fourth guide The groove 24 includes a bottom surface of a fourth guide groove
  • the fifth guide groove 25 includes a bottom surface of the fifth guide groove;
  • the bottom surface of the second guide groove is an inclined surface, and an end of the bottom surface of the second guide groove connected to the bottom surface of the first guide groove is connected to the first guide
  • the bottom surface of the groove is flush.
  • the end of the bottom surface of the second guide groove connected to the third guide groove 23 is higher than the bottom surface of the first guide groove and higher than the bottom surface of the third guide groove.
  • the bottom surface of the fourth guide groove is lower than the bottom surface of the third guide groove.
  • the bottom surface of the fifth guide groove is an inclined surface, the end of the bottom surface of the fifth guide groove connected to the bottom surface of the fourth guide groove is flush with the bottom surface of the fourth guide groove, and the end of the bottom surface of the fifth guide groove connected to the first guide groove 21 is higher than that of the fourth
  • the bottom surface of the guide groove is higher than the bottom surface of the first guide groove.
  • a step structure is provided at the connection between the bottom surface of the second guide groove and the bottom surface of the third guide groove, a step structure is provided at the connection between the bottom surface of the third guide groove and the bottom surface of the fourth guide groove, A stepped structure is provided at the connection of the bottom surface of a guide groove.
  • the guide boss 20 is a boss with a triangular cross section.
  • the cross section of the guide boss 20 is a right triangle or an obtuse triangle, the right angle or obtuse angle is located at the junction of the fourth guide groove 24 and the fifth guide groove 25, and an acute angle is located at the second guide groove 22 and the first
  • the other acute angle corresponds to the connection between the first guide groove 21 and the second guide groove 22, and a right-angled edge or an obtuse-angled edge is provided on the side of the fourth guide groove 24 and parallel to it.
  • the other right-angled side or another obtuse-angled side is provided on the side of the fifth guide groove 25 and parallel to it, its oblique or longest side is provided on the side of the second guide groove 22, the first guide groove 21 and the second guide groove 22 Located on a straight line, the third guide groove 23 is located below the guide boss 20.
  • a guide structure may be provided on the button mechanism, and a guide rod matching the guide structure is provided on the circuit breaker housing 2.
  • the transmission member 51 includes a first transmission member connection hole and a second transmission member connection hole provided thereon, the first transmission member connection hole and the second transmission member connection hole A connecting rod 1050 is connected, and the inner diameter of the connecting hole of the first transmission member is larger than the outer diameter of the first connecting rod 1050, so that in the closed state of the small circuit breaker of the present invention, the button mechanism 1 has a certain amount relative to the transmission member 51 With freedom of movement, the connecting hole of the second transmission member is connected to the second connecting rod 52.
  • the jumper 55 includes a first arm 550 of the jumper and a second arm 551 of the jumper, and the free end of the first arm 550 of the jumper is locked with the lock 53 ,
  • the second arm 551 of the jumper is in driving cooperation with the driving end of the opening lever 15 of the brake lever 15, and the second arm 551 of the jumper is also in driving cooperation with the overload protection mechanism 9.
  • the jumper 55 further includes a jumper extension 553, one end of the jumper extension 553 is connected to the second arm 551 of the jumper, and the other end is connected to the driving end of the opening lever 15 Drive coordination, the jumper extension arm 553 is also in drive coordination with the overload protection mechanism 9.
  • the jumper 55 has a substantially “ ⁇ ” structure, which includes a first arm 550 of the jumper, a second arm 551 of the jumper, a third arm 552 of the jumper, and a jumper
  • the buckle extension 553, the third arm 552 of the buckle jumper and the short circuit protection mechanism 6 are drivingly engaged. Specifically, as shown in the direction shown in FIG.
  • the jumper 55 is substantially a " ⁇ " shape structure, the middle of which is pivotally mounted on the support 54 through a third pivot 540, the second arm 551 of the jumper and the jumper
  • the third arm 552 of the fastener is basically in a straight line, and the first arm 550 of the jumper is located between the second arm 551 of the jumper and the third arm 552 of the jumper, which is roughly perpendicular to the line where the two are located.
  • the width of the end of the extension portion 553 that cooperates with the driving end of the opening brake lever is greater than or equal to the width of the fourth guide groove 24 of the guide slot group, so as to ensure the reliable cooperation between the opening end of the opening lever and the extension portion 553 of the jumper.
  • the reset member 10a of the button mechanism is an elastic metal member, one end of which is fixedly connected to the circuit breaker housing 2 and is located on the side of the transmission member 51, and the other end extends in the direction of the button mechanism 1, and Drive coordination with the button mechanism 1; when the miniature circuit breaker is in the off state, the button mechanism 1 is separated from the button mechanism resetting member 10a, and when the small circuit breaker is in the closing state, the button mechanism 1 is in contact with the button mechanism resetting member 10a, the button The mechanism resetting member 10a provides the push mechanism 1 with a reaction force in the resetting direction. It should be noted that, when the small circuit breaker is in the open state, the button mechanism 1 may also be in contact with the button mechanism resetting member 10a.
  • the reset member 10a of the button mechanism is specifically a torsion spring or a bent metal rod/sheet, one end of which is fixed on the circuit breaker housing 2 and the other end cooperates with the button mechanism 1.
  • the button mechanism resetting member 10a may also be a compression spring disposed between the circuit breaker housing 2 and the button mechanism 1 to provide a reaction force for the button mechanism 1.
  • the circuit breaker housing 2 includes two wire insertion holes 208 and two wire removal holes 201 provided on one side thereof.
  • the two wire removal holes 201 are respectively connected to the two wire insertion holes 208
  • one wire-removing hole 201 and one wire-removing hole 208 form a group, and each group of wire-removing hole 208 and wire-removing hole 201 are set correspondingly to an outlet 100, and external wires can pass through the wire-receiving hole 208 and The outlet 100 is connected, and the user can operate the outlet 100 through the wire-removing hole 201, so as to pull out the external conductor from the wire insertion hole 208.
  • the small circuit breaker of the present invention further includes an indicating device, the indicating device includes a first baffle 5a, a second baffle 6a, a linkage 7a and a second transmission rod 8a, the first baffle 5a and The second baffle 6a respectively corresponds to the two thread-removing holes 201.
  • first baffle 5a One end of the first baffle 5a is drivingly connected to the linkage 7a, the other end is drivingly connected to one end of the second transmission rod 8a, and the other end of the second transmission rod 8a is connected to the first
  • the two baffles 6a are drivingly connected, and the middle part of the second transmission rod 8a is pivotally arranged on the circuit breaker housing 2; the button mechanism 1 is pressed to close the small circuit breaker, and the button mechanism 1 drives the first baffle 5a to move through the linkage 7a Going to a thread removing hole 201 and covering the thread removing hole 201, the first baffle 5a drives the second baffle 6a to move to another thread removing hole 201 through the second transmission rod 8a and blocks the thread removing hole 201.
  • the wire insertion hole 208 close to the button mechanism 1 is used as the first wire insertion hole, and the wire insertion hole 208 far from the button mechanism 1 is used as the second wire insertion hole, and the first wire insertion hole
  • the cooperating wire-removing hole 201 is a first wire-removing hole, and the wire-removing hole 201 cooperating with the second wire-inserting hole is a second wire-removing hole; the first baffle 5a cooperates with the second wire-removing hole, and the second block
  • the plate 6a cooperates with the first thread-removing hole, the middle part of the second transmission rod 8a is pivotally arranged on the circuit breaker housing 2, the button mechanism 1 is pressed, the button mechanism 1 drives the linkage 7a to rotate, and the linkage 7a drives the first baffle 5a Moving to the second thread-removing hole and blocking the second thread-removing hole, the first baffle 5a drives the second transmission rod 8a to rotate, and the second transmission rod 8a drives the second baffle 6a to move to the first
  • the first baffle 5a is disposed between the second wire removal hole and one outlet 100
  • the second baffle 6a is disposed between the second wire removal hole and another outlet 100.
  • the two outlets 100 are respectively arranged corresponding to the two poles of the miniature circuit breaker of the present invention.
  • the circuit breaker housing 2 further includes a first sliding cavity 27 and a second sliding cavity 26.
  • the first sliding cavity 27 is disposed on the side of a wire insertion hole 208 and is close to the button mechanism 1.
  • a baffle 5a is slidably disposed in the first sliding cavity 27, a second sliding cavity 26 is disposed on the side of the other wire insertion hole 208 and away from the button mechanism 1, and a second baffle 6a is slidingly disposed in the second sliding cavity 26,
  • the first sliding cavity 27 is in communication with the second sliding cavity 26
  • the second transmission rod 8 is rotatably disposed at the connection between the first sliding cavity 27 and the second sliding cavity 26, and the two ends of the second transmission rod 8a are respectively located in the first sliding cavity In the cavity 27 and the second sliding cavity 26, the two ends of the second transmission rod 8a are drivingly connected to the first baffle 5a and the second baffle 6a, respectively.
  • the first sliding cavity 27 is disposed on the side of the second thread-removing hole and close to the button mechanism 1
  • the second sliding cavity 26 is disposed on the side of the first thread-removing hole and away from the button
  • the first sliding cavity 27 and the second sliding cavity 26 communicate with each other
  • the second transmission rod 8a is rotatably disposed at the connection between the first sliding cavity 27 and the second sliding cavity 26
  • the second transmission rod 8a is located in the first wire insertion hole
  • the first baffle 5a is slidably disposed in the first sliding cavity 27.
  • One end of the first baffle 5a is drivingly connected to the linkage 7a, and the other end is drivingly connected to one end of the second transmission rod 8a.
  • the other end of the second transmission rod 8a is drivingly connected to the second baffle 6a.
  • the second baffle 6a is slidably disposed in the second sliding cavity 26.
  • the first wire insertion hole and the first wire removal hole are provided with An outlet 100, a second outlet 100 and a wire outlet 100 are provided below the second wire insertion hole and the second wire removal hole, the first baffle 5a is provided in the first wire removal hole and the corresponding one of the first wire removal hole Between the outlet ends 100, the second baffle 6a is disposed between the second outlet hole and the outlet end 100 corresponding to the second outlet hole.
  • the first baffle 5a includes a first baffle actuated end 52a, a first baffle connecting arm 51a, and a first baffle body 50a.
  • the two ends of the first baffle connecting arm 51a are respectively Connected to the first baffle driven end 52a and the first baffle body 50a, the first baffle driven end 52a side is provided with a first baffle driven end slot 53a, and the first baffle driven end slot 53a Drivingly connected to the linkage 7a, a first baffle body slot 54a is provided on the lower side of the first baffle body 50a;
  • the second baffle 6a includes a second baffle body 60a and is provided on the lower side of the second baffle body 60a
  • the second transmission rod 8a includes a second transmission rod trunk 80a, a second transmission rod driven end 82a and a second transmission rod driving end 81a, the second transmission rod trunk 80a pivots Set on the circuit breaker housing 2, the driven end 82a of the second transmission
  • the driven end 82a of the second transmission rod and the driving end 81a of the second transmission rod are both of a cylindrical structure, and both are vertically connected to the trunk 80a of the second transmission rod.
  • the first baffle driven end 52a and the first baffle body 50a are vertically connected to the first baffle connecting arm 51a, respectively.
  • the extending direction of the slot 53a at the driven end of the first baffle plate is perpendicular to the extending direction of the first baffle connecting arm 51a
  • the extending direction of the first baffle body slot 54a is parallel to the first baffle connecting arm 51a
  • the extending direction of is vertical
  • the extending direction of the slot 53a of the driven end of the first baffle is perpendicular to the extending direction of the slot 54a of the first baffle body. Specifically, as shown in the direction shown in FIG.
  • the first baffle driven end slot 53a extends in the vertical direction
  • the first baffle body slot 54a extends in the horizontal direction
  • the first baffle driven end slot The extending direction of 53a is perpendicular to the extending direction of the first shutter body slot 54a.
  • a second transmission rod pivot 83a is provided in the middle of the second transmission rod trunk 80a, and a second transmission rod pivot hole is provided at the connection between the first sliding cavity 27 and the second sliding cavity 26 of the circuit breaker housing 2 28.
  • the second transmission lever pivot shaft 83a is rotatably disposed in the second transmission lever pivot hole 28.
  • FIGS. 14 and 15 it is an embodiment of the linkage 7a of the present invention.
  • the linkage 7a has a V-shaped structure, and the center is pivotally arranged on the circuit breaker housing 2a.
  • the linkage 7a includes a linkage actuated arm 71a and a linkage drive arm 70a.
  • the linkage actuated arm 71a is provided with a linkage in the middle
  • the driven arm is slotted 73a
  • the linkage driving arm 70a is provided with a linkage driving post 72a;
  • the button assembly 1 includes a button driving post which is drivingly connected to the linkage driven slot 73a and the linkage driving post 72a is drivingly connected to the slot 53a of the driven end of the first baffle.
  • the button mechanism 1 may not be provided with a button driving column, but the first link 1050 is driven through the transmission rod mounting table 12 of the button mechanism 1 and the linkage 7a Connected.
  • the above-mentioned connection mode is beneficial to simplify the structure of the button mechanism 1, thereby reducing production costs.
  • the button mechanism 1 rotates the linkage 7a clockwise through the button driving column or the first link 1050, and when the button mechanism 1 is reset, the button mechanism 1 passes the button driving column or the first link
  • the lever 1050 drives the linkage 7a to rotate counterclockwise to restore the initial state of 7a.
  • the link 7a is a V-shaped mechanism, the middle of which is pivotally arranged on the circuit breaker housing 2a.
  • the link 7a includes a link driven arm 71a and a link driven arm 70a.
  • the link driven arm 71a and the button mechanism 1 The button driving column is connected in contact with or connected to one end of the first link 1050.
  • the link driving arm 70a is provided with a link driving column 72a.
  • the link driving column 72a is drivingly connected to the slot 53a of the driven end of the first baffle .
  • one end of the button driving column or the first connecting rod 1050 is disposed on the upper side of the driven arm 71a of the linking member and is drivingly connected thereto.
  • the pointing device further includes a pointing device reset member 9a, and the pointing device is reset by the pointing device reset member 9a so as to avoid the thread-removing hole 201.
  • the resetting member 9a of the indicating device is a resetting spring, one end of which is connected to the circuit breaker housing 2 and the other end is connected to the linking member driven arm 71a of the linking member 7a or to the first baffle 5a.
  • an indication hole (not shown in the figure) can also be provided on one side of the circuit breaker housing 2 to make the indication device cooperate with the indication hole to indicate the closing or opening state of the circuit breaker. Coordinated with the button mechanism, when the button mechanism is pressed to close the small circuit breaker, the indicating device moves to the indicating hole and blocks the indicating hole. After the button mechanism is reset, the indicating device leaves the indicating hole.
  • the wire-removing hole 201 is used as an indication hole, which can effectively use the wire-removing hole, and can block the wire-removing hole with the indicating device, to prevent the operation of the wire-removing hole when the circuit breaker is closed.
  • the outlet 100 includes a conductive plate 102 and an elastic member 101.
  • the conductive plate 102 is fixedly disposed on the circuit breaker housing 2.
  • the elastic member 101 includes an elastic fixed end 1011 and an elastic crimping end 1010.
  • the fixed end 1011 of the elastic member is fixedly arranged on the circuit breaker housing 2, the crimping end 1010 of the elastic member is in elastic contact with the conductive plate 102, and the crimping end 1010 of the elastic member is correspondingly set with a group of insertion holes 208 and disconnection holes 201.
  • the external wire is inserted through the wire insertion hole 208 and inserted between the crimping end 1010 of the elastic member and the conductive plate 2.
  • the restoring force of the crimping end 1010 of the elastic member presses the external wire between the crimping end 1010 of the elastic member and the conductive plate 102.
  • the external wire can be pulled out from the insertion hole 208.
  • the circuit breaker housing 2 further includes an elastic member fixing post 105 disposed thereon, and an arc-shaped elastic member mounting groove formed between the elastic member fixing post 105 and the circuit breaker housing 2 is formed
  • the fixed end 1011 of the elastic member is connected to the crimping end 1010 of the elastic member through an arc-shaped bending structure 1012, and the arc-shaped bending structure 1012 is disposed in the mounting groove of the elastic member.
  • the upper end of the conductive plate 102 is provided with a limiting protrusion of the elastic member, and the limiting protrusion of the elastic member is matched with the crimping end 1010 of the elastic member. Specifically, as shown in the directions shown in FIGS.
  • the left side of the button mechanism 1 is provided with a wire terminal wiring cavity, and a wire insertion hole 208 and a wire removal hole 201 are provided at the upper end of the wire terminal wiring cavity, and the conductive plate 102 is fixedly disposed at At the lower right corner of the wiring cavity at the outlet end, the elastic member fixing post 105 is provided at the upper left corner of the outlet cavity at the outlet end, and an arc-shaped elastic member installation groove is formed between the elastic member fixing post 105 and the circuit breaker housing 2, the elastic member 101
  • the arc-shaped curved structure 1012 is disposed in the mounting groove of the elastic member, the lower end of the fixed end 1011 of the elastic member is in elastic contact with the circuit breaker housing 2, the right end of the crimping end 1010 of the elastic member is in elastic contact with the conductive plate 102, and the limiting position of the elastic member is convex Starting limit cooperation.
  • FIGS. 18 and 20 it is an embodiment of the circuit breaker housing 2 of the present invention.
  • the circuit breaker housing 2 of the present invention has a substantially rectangular parallelepiped structure.
  • the circuit breaker housing 2 includes a front end surface and a rear end surface that are oppositely disposed, a left side surface and a right side surface that are oppositely disposed, and
  • the upper surface and the lower surface provided, the circuit breaker housing 2 includes a wire insertion hole 208, a wire removal hole 201, an operating member mounting hole 1020, a first opening 203, a second opening 204, a wire inlet 21a and a signal line
  • the contact hole 22a and the operating element mounting hole 1020 are provided at the upper end of the front end surface of the circuit breaker housing 2 for mounting the operating element.
  • Two wire insertion holes 208 and two wire removal holes 201 are provided at the front end surface of the circuit breaker housing 2 and Located below the mounting hole 1020 of the operating part, the left insertion hole 208 and the left removal hole 201 are a group, used in conjunction with an outlet 100, the right insertion hole 208 and the right removal hole 201
  • the first opening 203 is used in conjunction with the first locking member 3 of the anti-closing mechanism for passing the first locking member protrusion 30 of the first locking member 3
  • the first opening 203 protrudes on the upper side of the circuit breaker housing 2
  • the second opening 204 is used in conjunction with the second locking member 4 of the locking mechanism for passing the second locking member protrusion 40 of the second locking member 4 Through the second opening 204, it protrudes on the upper side of the circuit breaker housing 2 and cooperates with the limit of the housing of the circuit breaker assembly position.
  • the two inlet holes 21a are respectively provided on the rear end surface of the circuit breaker housing 2
  • the wire holes 21a are arranged at upper and lower intervals, respectively located at the upper and lower ends of the rear end surface, and the signal wire connection holes 22a are provided between the two wire entry holes 21a; the wire entry holes 21a are provided with plug-in type terminals, specifically
  • the incoming end 8 is convenient for plugging and matching with the external conductor when the circuit breaker is assembled to the circuit breaker assembly position. It should be pointed out that the wire entry end 8 may also be located on the front end face side, and the wire exit end 100 is provided on the rear end face side.
  • a one-pole circuit breaker corresponds to an incoming end and an outgoing end.
  • the N-pole circuit breaker has no moving contacts and static contacts. It uses a conductor to directly connect the incoming end and outgoing end of the corresponding N-pole circuit breaker.
  • the lower surface of the circuit breaker housing 2 is provided with an adjusting screw mounting hole 212.
  • the adjusting screw is assembled on the circuit breaker housing 2 through the adjusting screw mounting hole 212, and is compatible with the overload protection mechanism 9.
  • Metal sheet contact used to adjust the position of the bimetallic sheet.
  • the left and/or right side is provided with an installation guide positioning step 214, and the installation guide and positioning step 214 protrudes from the left side and/or right side.
  • the installation guide positioning step 214 cooperates with the housing of the circuit breaker assembly position to guide, preventing the assembly of the small circuit breaker from being in place.
  • the installation guide positioning step 214 Including the first step 2141 and the second step 2142, the distance between the first step 2141 and the front end surface is greater than the distance between the second step 2142 and the front end surface, the upper end of the first step 2141 is connected to the upper surface of the circuit breaker housing 2, the second The lower end of the step 2142 is connected to the lower surface of the circuit breaker housing 2. Further, the first step 2141 and the second step 2142 are arranged in parallel, and both are parallel to the front end surface and the rear end surface.
  • the miniature circuit breaker further includes an indicating device, which is driven to cooperate with the operating member.
  • the indicating device is driven to cooperate with the operating member.
  • the operating The piece driving instruction device blocks the thread-removing hole 201.
  • the pointing device may be the above pointing device.
  • the operation member may be a button mechanism 1 or an operation handle.
  • a protective boss 20a is provided on each of the left and right sides of the mounting hole 1020 of the operating member, so as to reduce the impact of the operating member from external objects, thereby helping to extend the service life of the operating member.
  • one protective boss 20a is provided at the front end of the left side of the circuit breaker housing 2 and the other protective boss 20a is provided at the front end of the right side of the circuit breaker housing 2.

Abstract

本发明涉及低压电器领域，具体涉及一种小型断路器，其包括按钮机构、断路器壳体及锁定机构；所述按钮机构设置在断路器壳体的一端且与其滑动配合，锁定机构包括第二锁定件，第二锁定件枢转设置在断路器壳体上，断路器壳体包括设置在其一侧的第二开孔，第二锁定件一端与按钮机构驱动配合，另一端穿过第二开孔与断路器装配位置的壳体限位配合；朝断路器壳体外拉动按钮机构时，按钮机构驱动第二锁定件转动，使第二锁定件与断路器装配位置的壳体解除限位配合；本发明的小型断路器，其锁定机构与断路器装配位置的壳体形成可靠限位配合，保证了小型断路器装配的稳定性和可靠性。

Description

小型断路器 技术领域
本发明涉及低压电器领域，具体涉及一种小型断路器。
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，为了满足不同电器设备的安装需要，其中小型断路器作为一种重要类型的断路器，其结构多种多样且整体趋于小型化。现有小型断路器，多存在以下问题：
1、现有小型断路器，在安装到位后，常因为用户的误操作，将断路器拔出，一则不利于断路器可靠稳定的工作，二来存在安全隐患。
2、现有的通过按钮机构进行分闸/合闸操作的小型断路器，其通过按压按钮机构进行合闸，通过拉拔按钮机构进行分闸；用户在拉拔按钮机构进行分闸操作时，往往会出现拉拔力度过大，导致小型断路器被拔出装配位置的情况发生，不利于保证小型断路器装配的可靠性和工作稳定性，也存在安全隐患。
发明内容
本发明的目的在于克服现有技术的缺陷，提供一种小型断路器，其锁定机构与断路器装配位置的壳体形成可靠限位配合，保证了小型断路器装配的稳定性和可靠性。
为实现上述目的，本发明采用了如下技术方案：
一种小型断路器，其包括按钮机构、断路器壳体及锁定机构；所述按钮机构设置在断路器壳体的一端且与其滑动配合，锁定机构包括第二锁定件，第二锁定件枢转设置在断路器壳体上，断路器壳体包括设置在其一侧的第二开孔，第二锁定件一端与按钮机构驱动配合，另一端穿过第二开孔与断路器装配位置的壳体限位配合；朝断路器壳体外拉动按钮机构时，按钮机构驱动第二锁定件转动，使第二锁定件与断路器装配位置的壳体解除限位配合。
优选的，所述按钮机构包括按钮头、按钮主体和第一连杆，第一连杆一端插装在按钮主体上且与第二锁定件驱动配合，按钮头位于按钮主体的一侧以便用户操作按钮头，第一连杆与所述按钮主体传动配合，朝断路器壳体外拉动按钮机构时，第一连杆驱动第二锁定件转动，使第二锁定件与断路器装配位置的壳体解除限位配合。
优选的，所述锁定机构还包括第二锁定弹簧，第二锁定件包括第二锁定件主体以及分别设置在第二锁定件主体两端的第二锁定件凸起、第二锁定件驱动臂，第二锁定件主体枢转安装在断路器壳体上，第二锁定件驱动臂与第一连杆驱动配合，所述第二锁定弹簧使所述第二锁定件凸起穿过第二开孔突出在断路器壳体外侧，所述小型断路器装配至断路器装配位置且安装到位后，第二锁定件凸起穿过第二开孔与断路器装配位置的壳体限位配合，朝断路器壳体外拉动按钮机构移动时，第一连杆驱动第二锁定件驱动臂旋转，使得第二锁定件凸起向断路器壳体内部移动，第二锁定件解除与断路器装配位置的壳体限位配合。
优选的，所述第一连杆为U型杆，所述按钮主体上设置有传动杆安装台，所述第一连杆的一端穿过所述传动杆安装台并形成突出在传动杆安装台一侧的第一传动杆，且第一传动杆与第二锁定件驱动配合，朝断路器壳体外拉动按钮机构时，第一传动杆驱动第二锁定件转动，使第二锁定件与断路器装配位置的壳体解除限位配合。
优选的，所述小型断路器还包括操作机构、短路保护机构、灭弧机构、过载保护机构、动触头和静触头；所述按钮机构与操作机构驱动相连，操作机构与动触头相连，动触头和静触头配合，短 路保护机构和过载保护机构分别与操作机构驱动配合；所述按钮机构设置在断路器壳体一端，短路保护机构和灭弧机构设置在断路器壳体另一端，操作机构设置在按钮机构和短路保护机构之间，过载保护机构设置在操作机构一侧，且位于灭弧机构和按钮机构之间。
优选的，所述按钮机构通过第一连杆与操作机构驱动相连，朝断路器壳体内侧按动按钮机构时，按钮机构通过第一连杆驱动操作机构动作，操作机构带动动触头与静触头闭合；朝断路器壳体外侧拉动按钮机构时，按钮机构通过第一连杆驱动操作机构动作，操作机构带动动触头与静触头断开。
优选的，所述按钮机构通过第一连杆与操作机构驱动相连，朝断路器壳体内侧按动按钮机构时，按钮机构通过第一连杆驱动操作机构动作，操作机构带动动触头与静触头闭合；所述操作机构还包括分闸杆，分闸杆包括分闸杆连接端和分闸杆驱动端，分闸杆连接端与按钮机构相连，分闸杆驱动端与操作机构驱动配合；所述小型断路器处于合闸状态时，朝断路器壳体内按压按钮机构，分闸杆驱动操作机构动作，操作机构带动动触头与静触头断开。
优选的，所述操作机构还包括按钮机构复位件，以及与分闸杆配合且设置在断路器壳体上的导向凸台和导向槽组；所述导向槽组包括第一导向槽、第二导向槽、第三导向槽、第四导向槽和第五导向槽，第一导向槽、第二导向槽、第三导向槽、第四导向槽和第五导向槽首尾相连形成围绕导向凸台的环形的导向槽组；所述小型断路器处于分闸状态时，按压按钮机构，分闸杆的分闸杆驱动端由第一导向槽，经过第二导向槽，进入第三导向槽，所述小型断路器进入合闸状态，放开按钮机构，按钮机构复位件通过按钮机构带动分闸杆驱动端由第三导向槽进入第四导向槽，且使分闸杆驱动端与导向凸台限位配合；再次按压按钮机构，按钮机构通过分闸杆驱动端驱动操作机构动作，操作机构带动按钮机构复位，且按钮机构带动分闸杆驱动端由第四导向槽，经由第五导向槽，进入第一导向槽内，所述小型断路器进入分闸状态。
优选的，所述操作机构还包括传动件、第二连杆、锁扣件、支持件、跳扣件和第一复位弹簧，传动件、支持件分别枢转设置在断路器壳体上，且支持件通过第一复位弹簧与断路器壳体弹性相连，锁扣件和跳扣件分别枢转设置在支持件上，按钮机构通过第一连杆与传动件驱动相连，传动件通过第二连杆与锁扣件驱动相连，锁扣件和跳扣件锁扣配合，且跳扣件与支持件驱动配合，支持件与动触头相连，在所述小型断路器处于合闸状态时，按压按钮机构，按钮机构通过分闸杆驱动端跳扣件转动，使跳扣件与锁扣件解除锁扣配合，操作机构的支持件带动动触头与静触头断开。
优选的，所述操作机构包括传动件、第二连杆、锁扣件、支持件和跳扣件，传动件、支持件分别枢转设置在断路器壳体上，锁扣件、跳扣件分别枢转设置在支持件上，按钮机构通过第一连杆与传动件驱动相连，传动件通过第二连杆与锁扣件驱动相连，支持件与动触头相连，锁扣件与跳扣件锁扣配合；所述小型断路器处于分闸状态时，按压按钮机构，按钮机构通过第一连杆驱动操作机构动作，支持件带动动触头与静触头闭合，小型断路器进入合闸状态，拉拔按钮机构，按钮机构通过第一连杆驱动锁扣件转动，锁扣件驱动操作机构动作，支持件带动动触头与静触头断开，小型断路器进入分闸状态。
优选的，所述跳扣件包括跳扣件第一臂、跳扣件第二臂及跳扣件第三臂，所述跳扣件第一臂与锁扣件锁扣配合，所述跳扣件第二臂与过载保护机构驱动配合，所述跳扣件第三臂与短路保护机构驱动配合，出现短路故障时，短路保护机构通过跳扣件第三臂驱动跳扣件转动，使跳扣件与锁扣件解除锁扣配合，出现过载故障时，过载保护机构通过跳扣件第二臂驱动跳扣件转动，使跳扣件与锁扣件解除锁扣配合；所述跳扣件为“丄”形结构，跳扣件第二臂和跳扣件第三臂处于一条直线上，跳扣件第一臂位于跳扣件第二臂和跳扣件第三臂之间，与跳扣件第二臂和跳扣件第三臂所在的直线垂直；所述跳扣件还包括跳扣件伸出部，跳扣件伸出部的一端与跳扣件第二臂相连，跳扣件伸出部的自由端被触动后，跳扣件转动与锁扣件解锁。
优选的，还包括出线端和进线端，出线端位于按钮机构一侧，且出线端和按钮机构位于断路器壳体同一端，进线端、断路器保护机构和灭弧机构位于断路器壳体另一端，短路保护机构和灭弧机构并排设置，且位于进线端与操作机构之间，所述进线端为插接型接线端子。
优选的，所述出线端包括导电板和弹性件，导电板固定设置在断路器壳体上，弹性件包括弹性 件固定端和弹性件压线端，弹性件固定端固定设置在断路器壳体上，弹性件压线端与导电板弹性接触，外接导线插入弹性件压线端和导电板之间，被弹性件压线端和导电板压紧；所述断路器壳体还包括设置在其一侧的插线孔和拆线孔，插线孔、拆线孔分别与弹性件压线端对应设置；所述外接导线穿过插线孔插入弹性件压线端和导电板之间，通过拆线孔对弹性件压线端施加压力，使弹性件压线端与外接导线分离，即可将外接导线从插线孔处拔出。
本发明的小型断路器，其锁定机构的第二锁定件一端与断路器装配位置的壳体限位配合，防止本发明小型断路器被误拔出，保证断路器的稳定、可靠的工作，也避免用户在断路器合闸状态下，将断路器误拔出发生触电，有利于提高用电安全。
此外，本发明的小型断路器，其断路器壳体的被合理的规划和分配，既保证了各机构或部件的合理布局和有机配合，也使断路器壳体的空间得到了充分的利用，有利于减小本发明小型断路器的整体体积，以适应电器设备的小型化发展趋势，减小断路器的安装空间需要。
附图说明
图1是本发明小型断路器的结构示意图；
图2是本发明小型断路器的结构示意图，示出了锁定机构与断路器壳体的装配关系；
图3是本发明按钮机构和锁定机构的装配结构示意图；
图4是本发明小型断路器的结构示意图，示出了防合闸机构与断路器壳体的装配关系；
图5是本发明按钮机构和防合闸机构的装配结构示意图；
图6是本发明按钮机构和操作机构的装配结构示意图；
图7是本发明图6的A部分的结构示意图，示出了断路器在分闸状态下，分闸杆与导向凸台、导向槽组的位置关系；
图8是本发明的操作机构的结构示意图；
图9是本发明图8的B部分的结构示意图，示出了断路器在合闸状态下，分闸杆与导向凸台、导向槽组的位置关系；
图10是本发明分闸杆在导向槽组中的运动轨迹示意图；
图11是本发明小型断路器的结构示意图，示出了插线孔、出线孔、出线端和第二挡板的位置关系；
图12是本发明第一挡板、联动件、按钮机构和断路器壳体的装配结构示意图；
图13是本发明断路器壳体的结构示意图，示出了第二传动杆的装配位置；
图14是本发明指示装置的结构示意图；
图15是本发明指示装置的分解结构示意图；
图16是本发明指示装置的结构示意图，示出了指示装置复位件与第一挡板的装配关系；
图17是本发明指示装置的结构示意图，示出了联动件与指示装置复位件的装配关系；
图18是本发明断路器壳体的结构示意图，示出了断路器壳体的各种开孔；
图19是本发明操作机构的结构示意图；
图20是本发明断路器壳体的结构示意图，其示出了安装导向定位台阶的结构；
图21是本发明小型断路器实施例二的结构示意图；
图22是本发明实施例二的操作机构结构示意图。
具体实施方式
以下结合附图1-19给出的实施例，进一步说明本发明的小型断路器的具体实施方式。本发明的小型断路器不限于以下实施例的描述。
本发明的小型断路器，其包括断路器壳体2、设置在断路器壳体2上与其滑动配合的按钮机构1，以及设置在断路器壳体2内的操作机构5、动触头56、静触头560、短路保护机构6、灭弧机构7和过载保护机构9；所述按钮机构1通过第一连杆1050与操作机构5驱动相连，操作机构5与动触头 56相连，短路保护机构6和过载保护机构9分别与操作机构5驱动配合，在出现相应故障时触发断路器脱扣，灭弧机构7与动触头56、静触头560配合使用。
优选的，所述短路保护机构6包括电磁脱扣器，过载保护机构9包括双金属片和调节螺钉。
优选的，如图1所示，所述按钮机构1设置在断路器壳体2一端，短路保护机构6和灭弧机构7均设置在断路器壳体2的另一端，操作机构5设置在按钮机构1和短路保护机构6之间，过载保护机构9设置在操作机构5一侧且位于灭弧机构7和按钮机构1之间。进一步的，如图1所示，本发明的小型断路器还包括出线端100和进线端8，出线端100设置在按钮机构1一侧，且出线端100和按钮机构1位于断路器壳体2的同一端，进线端8设置在短路保护机构6、灭弧机构7的一侧，且进线端8、短路保护机构6和灭弧机构7位于断路器壳体2的同一端；所述进线端8为插接型接线端子。具体的，如图1所示方向，所述按钮机构1和出线端100位于断路器壳体2的上端，出线端100位于按钮操作机构1的左侧，操作机构5和过载保护机构9位于断路器壳体2的中部，过载保护机构9位于操作机构5的左侧，短路保护机构6、灭弧机构7和进线端8位于断路器壳体2的下端，进线端8位于短路保护机构6和灭弧机构7的下侧。可见，本发明的小型断路器，其断路器壳体2的被合理的规划和分配，既保证了各机构或部件的合理布局和有机配合，也使断路器壳体2的空间得到了充分的利用，有利于减小本发明小型断路器的整体体积，以适应电器设备的小型化发展趋势，减小断路器的安装空间需要。而且，所述出线端100与按钮机构1位于断路器壳体2的同一端，便于用户对断路器接线和拆线，进线端8为插接型接线端子，便于断路器与主电路相连，无论是进线接线，还是出线接线，均无需拆卸用于安装断路器的安装柜，显著提高了接线便捷性，而且有利于提高操作安全性。
优选的，如图4和5所示，本发明的小型断路器还包括防合闸机构，按钮机构1设置在断路器壳体2一端与其滑动配合，防合闸机构包括第一锁定件3，第一锁定件3枢转设置在断路器壳体2上，第一锁定件3一端与按钮机构1锁扣配合，阻挡按钮机构1朝合闸方向移动，小型断路器装配至断路器装配位置且安装到位后，断路器装配位置的壳体作用于第一锁定件3，使第一锁定件3与按钮机构1解除锁定配合后，按钮机构1能够朝合闸方向移动进行合闸操作。所述防合闸机构，确保只有在小型断路器安装到位后，才可以进行合闸操作，避免因小型断路器安装不到位而导致接触不良使断路器无法正常工作的情况，也避免因小型断路器与断路器装配位置虚接触，在进行合闸操作时，产生电弧，对断路器或断路器装配位置造成烧蚀，影响使用寿命的情况，也避免用户在操作断路器时触电的情况，有利于提高用电安全性。
优选的，如图4和5所示，所述防合闸机构还包括第一锁定弹簧，第一锁定件3包括第一锁定件主体31以及分别设置在第一锁定件主体31两端的第一锁定件凸起30、第一锁定件挡臂32，第一锁定件主体31枢转设置在断路器壳体2上，第一锁定件挡臂32与第一锁定件主体31折弯相连，所述断路器壳体2包括设置在其一侧的第一开孔203；所述第一锁定弹簧分别与第一锁定件3、断路器壳体2相连，使第一锁定件挡臂32与按钮机构1锁定配合，且使第一锁定件凸起30穿过第一开孔203突出在断路器壳体2外侧；所述小型断路器，装配至断路器装配位置且安装到位后，断路器装配位置的壳体挤压第一锁定件凸起30使其向断路器壳体2内移动，使第一锁定件挡臂32与按钮机构1解除锁定配合。
需要指出的是，所述按钮机构1和第一锁定件挡臂32锁定配合指的是，按钮机构1被锁定后即无法朝合闸方向(如图1所示方向，合闸方向指的是下方)动作，而锁定配合解除后，按钮机构1即可朝合闸方向动作，能使本发明的小型断路器分闸/合闸。
优选的，如图2和3所示，本发明小型断路器还包括锁定机构，锁定机构包括第二锁定件4，按钮机构1设置在断路器壳体2一端且与其滑动配合，断路器壳体2包括设置在其一侧的第二开孔204，第二锁定件4枢转设置在断路器壳体2上，第二锁定件4一端与按钮机构1驱动配合，另一端穿过第二开孔204与断路器装配位置的壳体限位配合；朝断路器壳体2外拉动按钮机构1时，按钮机构1驱动第二锁定件4转动，使第二锁定件4与断路器装配位置的壳体解除限位配合。所述锁定机构，第二锁定件4一端与断路器装配位置的壳体限位配合，防止本发明小型断路器被误拔出，保 证断路器的稳定、可靠的工作，也避免用户在断路器合闸状态下，将断路器误拔出发生触电，有利于提高用电安全。
优选的，如图2和3所示，所述锁定机构还包括第二锁定弹簧，第二锁定件4包括第二锁定件主体41以及分别设置在第二锁定件主体41两端的第二锁定件凸起40、第二锁定件驱动臂42，第二锁定件主体41枢转设置在断路器壳体2上，且与第二锁定件驱动臂42折弯相连；所述断路器壳体2包括设置在其一侧的第二开孔204；所述第二锁定弹簧分别与第二锁定件主体41、断路器壳体2相连，使第二锁定件凸起40穿过第二开孔204突出在断路器壳体2外侧；所述小型断路器装配至断路器装配位置后，第二锁定件凸起40穿过第二开孔204与断路器装配位置的壳体限位配合。所述锁定机构，在本发明小型断路器安装到断路器装配位置后，第二锁定件凸起40与断路器装配位置的壳体限位配合，防止本发明小型断路器被误拔出，保证断路器的稳定、可靠的工作，也避免用户在断路器合闸状态下，将断路器误拔出发生触电，有利于提高用电安全。
优选的，所述断路器装配位置，可以是用于安装断路器的安装柜。
优选的，如图3和5所示，所述按钮机构1包括按钮头10、按钮主体11和第一连杆1050，按钮头10设置在按钮主体11一端且突出在断路器壳体2外侧，以便用户便利的操作按钮机构1，第一连杆1050一端插装在按钮主体11另一端，第一锁定件3一端与第一连杆1050插装在按钮主体11上的一端锁定配合，第二锁定件4与第一连杆1050插装在按钮主体11上的一端驱动配合。所述第一连杆1050，既作为按钮机构1与操作机构5之间的传动元件，也分别与第一锁定件3、第二锁定件4配合，有利于简化按钮机构1的结构，节约本发明小型断路器的生产成本。
优选的，所述第一锁定件3的第一锁定件主体31、第二锁定件4的第二锁定件主体41均通过第一枢轴3040枢转设置在断路器壳体2上，有利于简化防合闸机构和锁定机构的装配结构，从而节约断路器壳体2内部的装配空间，有利于本发明小型断路器的小型化。
优选的，所述第一锁定弹簧和第二锁定弹簧为一体式结构的双扭簧3042，其包括双扭簧第一端、双扭簧第二端和双扭簧第三端，双扭簧第一端与第一锁定件主体31相连，双扭簧第二端与第二锁定件主体41相连，双扭簧第三端与断路器壳体2相连。所述双扭簧3042可同时与第一锁定件3、第二锁定件4和断路器壳体2相连，有利于进一步简化防合闸机构和锁定机构的装配结构，简化装配操作，提高装配效率。
优选的，如图1和8所示，所述操作机构5包括锁扣件53、支持件54和跳扣件55，支持件54分别枢转设置在断路器壳体2上，锁扣件53和跳扣件55分别枢转设置在支持件54上，按钮机构1与操作机构5驱动相连，锁扣件53和跳扣件55锁扣配合，且跳扣件55与支持件54驱动配合，支持件54与动触头56相连，支持件54与动触头56相连；
本发明的小型断路器还包括分闸杆15，分闸杆15包括分闸杆连接端和分闸杆驱动端，分闸杆连接端与按钮机构1相连，分闸杆驱动端与跳扣件55驱动配合；所述小型断路器处于分闸状态时，锁扣件53与跳扣件55锁扣配合，按压按钮机构1驱动操作机构5动作，操作机构5带动动触头56和静触头560闭合，小型断路器进入合闸状态，同时使分闸杆15滑动到与跳扣件55配合的位置；再次按压按钮机构1，分闸杆驱动端驱动跳扣件55转动，使跳扣件55与锁扣件53解除锁扣配合，操作机构5脱扣，支持件54带动动触头56和静触头560断开，小型断路器进入分闸状态，同时分闸杆15复位到初始位置。
需要指出的是，所述锁扣件53和跳扣件55之间的锁扣配合指的是，锁扣件53一端与跳扣件55搭接，并限制跳扣件55的动作，而一旦锁扣件53与跳扣件55的搭接关系被破坏，则跳扣件55的动作不再受锁扣件53的限制。
现有小型断路器，采用拉拔按钮实现断路器的分闸操作，而这种拉拔方式往往会因为用户力度过大而将断路器从机柜中拉出，断路器装配稳定性差，影响用户的使用体验。
本发明的小型断路器，通过按压按钮机构1可实现断路器的分闸/合闸，相较于现有技术的采用拉拔按钮机构实现断路器的分闸操作的方式，能够避免拉拔按钮机构时，因用户的力度过大而降断路器从机柜中拉出的情况发生，有利于提高断路器的装配稳定性，改善用户的使用体验。
需要指出的是，本发明的小型断路器，也可以在小型断路器处于合闸状态时，通过拉拔按钮机构1，实现分闸操作，分闸杆15可以被拉动，并不影响按钮机构1被拉出。进一步的，本发明的小型断路器也可以不设置分闸杆15，而是通过拉拔按钮机构1，通过第一连杆1050带动操作机构5旋转过死点进行分闸，从而使动触头56与静触头560断开。
如图21-22示出了本发明小型断路器的实施例二，其与实施例的区别主要在于采用的不设置分闸杆15的方案，通过按压按钮机构1进行合闸，通过拉拔按钮机构1，实现分闸操作，其它结构与实施例一基本相同。
实施例二的小型断路器，其包括断路器壳体2、按钮机构1，以及设置在断路器壳体2内的操作机构5、短路保护机构6、灭弧机构7、过载保护机构9、动触头56和静触头560；所述按钮机构1与断路器壳体2滑动配合，其包括第一连杆1050，按钮机构1通过第一连杆1050与操作机构5驱动相连，操作机构5与动触头56相连，动触头56和静触头560配合使用，短路保护机构6和过载保护机构9分别与操作机构5驱动配合，灭弧机构7与动触头56、静触头560配合使用；所述按钮机构1设置在断路器壳体2一端，短路保护机构6和灭弧机构7设置在断路器壳体2另一端，操作机构5设置在按钮机构1和短路保护机构6之间，过载保护机构9设置在操作机构5一侧，且位于灭弧机构7和按钮机构1之间；所述小型断路器处于分闸状态时，按压按钮机构1，按钮机构1通过第一连杆1050驱动操作机构5动作，操作机构5带动动触头56与静触头560闭合，小型断路器进入合闸状态，拉拔按钮机构1，按钮机构1通过第一连杆1050驱动操作机构5动作，操作机构5带动动触头56与静触头560断开，小型断路器进入分闸状态。
优选的，所述操作机构5包括传动件51、第二连杆52、锁扣件53、支持件54和跳扣件55，传动件51、支持件54分别枢转设置在断路器壳体2上，锁扣件53、跳扣件55分别枢转设置在支持件54上，按钮机构1通过第一连杆1050与传动件51驱动相连，传动件51通过第二连杆52与锁扣件53驱动相连，支持件54与动触头56相连，锁扣件53与跳扣件54锁扣配合；所述小型断路器处于分闸状态时，按压按钮机构1，按钮机构1通过第一连杆1050驱动操作机构5动作，支持件54带动动触头56与静触头560闭合，小型断路器进入合闸状态，拉拔按钮机构1，按钮机构1通过第一连杆1050驱动锁扣件53转动，锁扣件53驱动操作机构5动作，支持件54带动动触头56与静触头560断开，小型断路器进入分闸状态。具体的，如图1所示方向，所述按钮机构1通过第一连杆1050与传动件51驱动相连，传动件51设置在按钮机构1下方，通过第二枢轴510枢转设置在断路器壳体2上，锁扣件53通过第二枢轴530枢转设置在支持件54上，传动件51通过第二连杆52与锁扣件53驱动相连，支持件54设置在传动件51下方且位于传动件51与短路保护机构6之间，支持件54通过第四枢轴540枢转设置在断路器壳体2上，跳扣件55通过第四枢轴540枢转设置在支持件54上。需要指出的是，本实施例小型断路器处于合闸状态时，拉拔按钮机构1，按钮机构1通过第一连杆1050驱动整个操作机构5旋转过死点，操作机构5带动动触头56与静触头560断开。
优选的，本发明的小型断路器还包括指示装置，断路器壳体2包括设置在其一侧的指示孔，按钮机构1与断路器壳体2滑动配合，指示装置与按钮机构1驱动配合，按压按钮机构1使小型断路器合闸时，按钮机构1驱动指示装置遮挡指示孔。本发明的小型断路器，其指示装置可在断路器合闸时，遮挡指示孔，以指示断路器的合闸状态，对用户起到警示作用，提示用户不要对小型断路器进行拆线和接线操作，显著提高了用电安全性。
优选的，如图12和14所示，所述断路器壳体2包括设置在其一侧的至少一个插线孔208和至少一个拆线孔201，插线孔208和拆线孔201配合使用，按钮机构1、拆线孔201、插线孔208位于断路器壳体2的同一端；本发明小型断路器还包括指示装置，指示装置包括至少一个挡板和联动件7a，联动件7a中部枢转设置在断路器壳体2上，联动件7a一端与按钮机构1驱动相连，另一端与挡板驱动配合；按压按钮机构1使小型断路器合闸，按钮机构1通过联动件7a驱动挡板移动至拆线孔201处并遮挡拆线孔201。进一步的，所述挡板与断路器壳体2滑动配合。
优选的，所述联动件7a中部枢转设置在断路器壳体2上，联动件7a包括联动件受动臂71a和联动件驱动臂70a，联动件受动臂71a中部设置联动件受动臂开槽73a，联动件驱动臂70a上设有联 动件驱动柱72a；所述挡板与联动件7a驱动配合的一端设置有挡板受动端开槽；所述按钮机构1包括按钮驱动柱，按钮驱动柱与联动件受动臂开槽73a驱动相连，联动件驱动柱72a与挡板受动端开槽驱动相连。
优选的，所述挡板与断路器壳体2滑动配合。
优选的，所述拆线孔201为指示孔。
现有小型断路器，在断路器合闸通电时，拆线孔暴露在外，仍可通过拆线孔接触断路器壳体内部的电路，用户对拆线孔进行误操作，极有可能造成用户触电，存在很大的安全隐患。
本发明的小型断路器，其挡板可在断路器合闸时，移动至拆线孔处并遮挡拆线孔，一则对用户起到警示作用，提示用户不要对拆线孔进行操作，二来挡板遮挡拆线孔，也避免用户对拆线孔进行操作，显著提高了用电安全性。
优选的，如图18和20所示，所述断路器壳体2为长方体结构，断路器壳体2包括相对设置的前端面和后端面、相对设置的左侧面和右侧面，以及相对设置的上表面和下表面；所述后端面上设置有进线孔21a，所述前端面上设置有操作件安装孔1020以及插线孔208，所述进线孔21a内设置有插接型接线端子。本发明的小型断路器，其断路器壳体2的前端面和后端面上分别设置插线孔和进线孔，外接导线可直接与进线孔内的插接型接线端子插接配合或拉拔分离，在安装和更换断路器时，都不需要太大的拆装空间，且拆装方便。
如图1所示，为本发明的小型断路器的一个最佳实施例。
如图1所示方向，本发明的小型断路器，其包括断路器壳体2、按钮机构1、防合闸机构、锁定机构、操作机构5、短路保护机构6、灭弧机构7、进线端8、过载保护机构9、动触头56、静触头560和出线端100；所述按钮机构1插装在断路器壳体2上端且与断路器壳体2滑动配合，出线端100设置在断路器壳体2上端且位于按钮机构1左侧，短路保护机构6、灭弧机构7和进线端8设置在断路器壳体2下端，短路保护机构6、灭弧机构7设置在进线端8上侧，且灭弧机构7和短路保护机构6左右并排设置，操作机构5和过载保护机构9设置在断路器壳体2中部，操作机构5位于短路保护机构6和按钮机构1之间，过载保护机构9位于灭弧机构7和出线端100之间；所述按钮机构1通过第一连杆1050与操作机构5驱动相连，操作机构5与动触头56相连，过载保护机构9与静触头560相连，灭弧机构7与动触头56、静触头560配合使用，短路保护机构6、过载保护机构9分别与操作机构5驱动配合。
优选的，如图1所示，所述过载保护机构9包括双金属片和调节螺钉，双金属片上端与操作机构5的跳扣件55驱动配合，下端固定设置在断路器壳体2上，调节螺钉设置在双金属片下端左侧，可通过旋拧调节螺钉调节过载保护机构的双金属片的位置，从而调节本发明小型断路器的过载电流保护范围。
如图4和5所示，所述防合闸机构包括第一锁定件3，第一锁定件3包括第一锁定件主体31以及分别设置在第一锁定件主体31两端的第一锁定件凸起30和第一锁定件挡臂32。如图4所示方向，所述第一锁定件3通过第一枢轴3040枢转设置在断路器壳体2的右上角处，且位于按钮机构1右侧，第一锁定件3上方设有双扭簧3042，双扭簧3042的双扭簧第一端、双扭簧第三端分别与第一锁定件3的第一锁定件主体31、断路器壳体2相连，使第一锁定件凸起30穿过断路器壳体2的第一开孔203突出在断路器壳体2外侧。如图5所示，所述按钮机构1包括按钮头10、按钮主体11和第一连杆1050，按钮头10设置在按钮主体11一端且突出在断路器壳体2外侧，以便用户便利的操作按钮头10，第一连杆1050一端插装在按钮主体11另一端上并形成第一传动杆3041，第一锁定件挡臂32与第一传动杆3041锁定配合。具体的，如图5所示方向，所述按钮头10与按钮主体11的左端相连，第一传动杆3041设置在按钮主体11的右端，第一锁定件挡臂32设置在第一传动杆3041右侧，当按钮机构1被按压时，第一锁定件挡臂32阻止按钮机构1向右侧移动，即阻止按钮机构1朝合闸方向移动，而当本发明小型断路器，装配至断路器装配位置且安装到位后，断路器装配位置的壳体挤压第一锁定件凸起30，使第一锁定件凸起30向断路器壳体2内部移动，则第一锁定件挡臂32翘起，不再阻挡第一传动杆3041，此时按压按钮机构1，可使断路器合闸。
优选的，如图5所示，所述第一锁定件3包括设置在第一锁定件主体31一侧的第一锁定弹簧限位凸起33，第一锁定弹簧限位凸起33与双扭簧3042的双扭簧第一端限位配合。具体的，如图5所示方向，所述第一锁定弹簧限位凸起33设置在第一锁定件主体31的左端后侧，双扭簧第一端位于第一锁定弹簧限位凸起33前侧与其限位配合。
优选的，如图5所示，所述按钮机构1包括传动杆安装台12，第一连杆1050为U型杆，第一连杆1050一端插装在传动杆安装台12上并形成出图在安装台12一侧的第一传动杆3041，第一锁定件3的第一锁定件挡臂32位于传动杆安装台12一侧且与第一传动杆3041锁定配合，第一锁定件挡臂32阻挡第一传动杆3041向合闸方向移动。具体的，如图5所示方向，所述传动杆安装台12设置在按钮主体11右端上侧，第一连杆1050的左端插装在传动杆安装台12上，并形成突出在传动杆安装台12前侧的第一传动杆3041，第一锁定件挡臂32位于第一传动杆3041右侧与其锁定配合。进一步的，如图5所示方向，所述按钮机构1还包括第一限位凸台13，第一限位凸台13与传动杆安装台12间隔设置且位于其前侧，第一限位凸台13与断路器壳体2接触配合，以使按钮机构1在断路器壳体2内滑动时保持稳定，以避免晃动。优选的，如图5所示方向，所述按钮机构1还包括按钮凸起14，按钮凸起14设置在按钮主体11上侧且位于传动杆安装台12前侧，按钮凸起14的后端与传动杆安装台12的前端相连。
如图2和3所示，所述锁定机构包括第二锁定件4，第二锁定件4包括第二锁定件主体41以及分别设置在第二锁定件主体41两端的第二锁定件凸起40、第二锁定件驱动臂42。如图2所示方向，所述锁定机构设置在断路器壳体2的右上角处，且位于按钮机构1右侧，第二锁定件4的第二锁定件主体41通过第一枢轴3040枢转安装在断路器壳体2上。如图3所示，所述第二锁定件4的第二锁定件驱动臂42与第一连杆1050的第一传动杆3041驱动配合。具体的，如图3所示方向，所述第二锁定件驱动臂42设置在第一传动杆3041左侧，本发明的小型断路器，装配至断路器装配位置且安装到位后，断路器装配位置的壳体与第二锁定件主体41限位配合，使断路器与断路器装配位置可靠限位和装配，当朝断路器壳体2外拉动按钮机构1时，即向左侧拉动按钮机构1，第一传动杆3041驱动第二锁定件驱动臂42，使第二锁定件驱动臂42翘起，第二锁定件凸起40下沉向断路器壳体2内部移动，从而使第二锁定件凸起20与断路器装配位置的限位配合解除，用户可以将断路器从断路器装配位置处拆卸下来。
优选的，如图3所示，所述第二锁定件4包括设置在第二锁定件主体41一侧的第二锁定弹簧限位凸起43，双扭簧3042的双扭簧第二端与第二锁定弹簧限位凸起43限位配合。具体的，如图3所示方向，所述第二锁定弹簧限位凸起43设置在第二锁定件主体41左端后侧，双扭簧第二端设置在第二锁定弹簧限位凸起43前侧与其限位配合。
优选的，如图5所示方向，所述双扭簧3042通过第三安装轴3043安装在断路器壳体2上，双扭簧3042包括双扭簧第一端、双扭簧第二端和双扭簧第三端，双扭簧第一端和双扭簧第二端设置在按钮主体11上方基本与按钮主体11平行，双扭簧第三端设置在按钮主体11上方基本与其垂直，双扭簧第三端还与按钮机构1的按钮凸起14配合，双扭簧第三端在按钮机构1分闸方向上阻挡按钮凸起14，从而限制按钮机构1在分闸方向上的位置。具体的，如图2所示方向，第一安装轴3043安装在断路器壳体2的右上角处。
优选的，如图2所示，所述断路器壳体2还包括第三锁定弹簧限位凸起210，第三锁定弹簧限位凸起210与双扭簧第三端相连。具体的，如图2所示方向，所述第三锁定弹簧限位凸起210设置在锁定机构、防合闸机构上方，且位于第一安装轴3043左侧。
优选的，如图1所示，所述按钮机构1设置在断路器壳体2一端且与其滑动配合，第三锁定弹簧限位凸起210、第一安装轴3043、第一锁定件3、第二锁定件4和双扭簧3042均设置在按钮机构1一侧，第一安装轴3043设置在断路器壳体2的一个内角处，第三锁定弹簧限位凸起210位于第一安装轴3043和按钮机构1之间，第一锁定件3和第二锁定件4并排设置，且位于第三锁定弹簧限位凸起210一侧，第一开孔203与第二开孔204相比，更靠近第一安装轴3043，第一枢轴3040位于第一开孔203和第一安装轴3043之间。具体的，如图1所示方向，所述按钮机构1设置在断路器壳 体2上端与其滑动配合，防合闸机构、锁定机构和双扭簧均设置在按钮机构1右侧，第一安装轴3043设置在断路器壳体2的右上角处，双扭簧3042套设在第一安装轴3043上，防合闸机构和锁定机构均通过第一枢轴3040枢转设置在断路器壳体2上，且位于第一安装轴3043下方，防合闸机构的第一锁定件3和锁定机构的第二锁定件4并排设置，第二锁定件4位于内侧，第一锁定件3位于外侧，第一开孔203位于第二开孔204上方，第三锁定弹簧限位凸起210设置在第一安装轴3043左侧。
如图1、6、8所示，所述操作机构5包括传动件51、第二连杆52、锁扣件53、支持件54、跳扣件55和第一复位弹簧57，传动件51通过第二枢轴510枢转设置在断路器壳体2上，支持件54通过第三枢轴540枢转设置在断路器壳体2上，锁扣件53通过第四枢轴530枢转设置在支持件54上，跳扣件55通过第三枢轴540枢转设置在支持件54上。所述按钮机构1通过第一连杆1050与传动件51驱动相连，驱动件51通过第二连杆52与锁扣件53驱动相连，锁扣件53和跳扣件55锁扣配合，且跳扣件55与支持件54驱动配合，支持件54与动触头56相连。
需要指出的是，防合闸机构除了利用第一锁定件3与按钮机构1锁定配合以锁定防止在断路器未装配到位的情况下进行合闸外，所述防合闸机构还可以与操作机构5锁定配合(图中未示出)来阻止所述操作机构5被操作而合闸。具体的，断路器未装配到位时，所述防合闸机构的第一锁定件3的一端可以与操作机构5的支持件54抵挡锁定，待断路器装配到位后，断路器装配位置的壳体触动第一锁定件3旋转使第一锁定件3与操作机构5的支持件54接触锁定配合，如此，按钮机构1能够朝合闸方向移动，并驱动操作机构5动作而进行合闸操作。
所述操作机构5还包括分闸杆15、按钮机构复位件10a、导向凸台20和导向槽组。所述分闸杆15包括分闸杆连接端和分闸杆驱动端，分闸杆连接端与按钮机构1相连，分闸杆驱动端与跳扣件55驱动配合。所述导线凸台20设置在断路器壳体2上，如图7和9所示，所述导向槽组包括第一导向槽21、第二导向槽22、第三导向槽23、第四导向槽24、第五导向槽25，第一导向槽21、第二导向槽22、第三导向槽23、第四导向槽24和第五导向槽25首尾相连形成围绕导向凸台20的环形的导向槽组。所述小型断路器处于分闸状态时，按压按钮机构1，分闸杆15的分闸杆驱动端由第一导向槽21、经由第二导向槽22，进入第三导向槽23，小型断路器进入合闸状态，放开按钮机构1，在按钮机构复位件10a反力作用下，按钮机构1带动分闸杆驱动端由第三导向槽23进入第四导向槽24，此时，分闸杆驱动端的前端对准跳扣件55，导向凸台20在分闸杆15复位方向上挡住分闸杆15，防止分闸杆15和按钮机构1在按钮机构复位件10a的反力作用下复位；再次按压按钮机构1，使分闸杆驱动端驱动跳扣55转动，跳扣件55与锁扣件53解除锁扣配合，操作机构5跳扣，操作机构5带动按钮机构1复位，且按钮机构1带动分闸杆驱动端由第四导向槽24，经由第五导向槽25，进入第一导向槽21，按钮机构1和操作机构5均恢复到初始状态，使小型断路器进入分闸状态。
如图10所示，示出了所述分闸杆15的分闸杆驱动端的运动轨迹：本发明的小型断路器，由分闸状态至合闸状态，折线a-b-c-d基本描述了分闸杆驱动端的运动轨迹；本发明的小型断路器，由合闸状态至分闸状态时，折线d-e-a基本描述了分闸杆驱动端的运动轨迹。
优选的，如图7所示，所述第一导向槽21包括第一导向槽底面，第二导向槽22包括第二导向槽底面，第三导向槽23包括第三导向槽底面，第四导向槽24包括第四导向槽底面，第五导向槽25包括第五导向槽底面；所述第二导向槽底面为斜面，第二导向槽底面的与第一导向槽底面相连的一端与第一导向槽底面平齐，第二导向槽底面的与第三导向槽23相连的一端高于第一导向槽底面，且高于第三导向槽底面，第四导向槽底面低于第三导向槽底面，第五导向槽底面为斜面，第五导向槽底面的与第四导向槽底面相连的一端与第四导向槽底面平齐，第五导向槽底面与第一导向槽21相连的一端高于第四导向槽底面，且高于第一导向槽底面。
优选的，所述第二导向槽底面与第三导向槽底面的连接处设有台阶结构，第三导向槽底面与第四导向槽底面的连接处设有台阶结构，第五导向槽底面与第一导向槽底面的连接处设有台阶结构。
优选的，所述导向凸台20为一横截面为三角形的凸台。进一步的，所述导向凸台20的横截面为直角三角形或钝角三角形，其直角或钝角位于第四导向槽24和第五导向槽25的连接处，其一个锐角位于第二导向槽22和第三导向槽23的连接处，其另一个锐角与第一导向槽21与第二导向槽 22的连接处对应，其一条直角边或一条钝角边设置在第四导向槽24一侧且与其平行，另一条直角边或另一条钝角边设置在第五导向槽25一侧且与其平行，其斜边或最长边设置在第二导向槽22一侧，第一导向槽21与第二导向槽22位于一条直线，第三导向槽23位于导向凸台20下侧。
需要指出的是，分闸杆除了采用本实施例的导向凸台和导向槽组配合的具体结构外，还可以采用其它的配合结构，只需与按钮机构1配合，第一次按压按钮机构使得分闸杆可移到与跳扣件配合的第二稳定位置，第二次按压按钮机构能复位到初始稳定位置，且能带动跳扣件即可，均属于本发明的保护范围。例如，所述按钮机构上可以设置导向结构，断路器壳体2上设置与导向结构配合的导向杆。
优选的，如图1、2、4、6和8所示，所述传动件51包括设置在其上的第一传动件连接孔和第二传动件连接孔，第一传动件连接孔与第一连杆1050相连，且第一传动件连接孔的内径大于第一连杆1050的外径，以使得在本发明小型断路器在合闸状态下，按钮机构1相对于传动件51具有一定的活动自由度，第二传动件连接孔与第二连杆52相连。
优选的，如图8所示，所述跳扣件55包括跳扣件第一臂550和跳扣件第二臂551，跳扣件第一臂550的自由端与锁扣件53锁扣配合，跳扣件第二臂551与分闸杆15的分闸杆驱动端驱动配合，跳扣件第二臂551还与过载保护机构9驱动配合。进一步的，所述跳扣件55还包括跳扣件伸出部553，跳扣件伸出部553一端与跳扣件第二臂551相连，另一端与分闸杆15的分闸杆驱动端驱动配合，跳扣件伸出臂553还与过载保护机构9驱动配合。
优选的，如图8所示，所述跳扣件55大致为“丄”形结构，其包括跳扣件第一臂550、跳扣件第二臂551、跳扣件第三臂552和跳扣件伸出部553，跳扣件第三臂552与短路保护机构6驱动配合。具体的，如图8所示方向，所述跳扣件55大致为“丄”形结构，其中部通过第三枢轴540枢转安装在支持件54上，跳扣件第二臂551和跳扣件第三臂552基本处于一条直线上，跳扣件第一臂550位于跳扣件第二臂551和跳扣件第三臂552之间，大致与二者所在的直线垂直，跳扣件伸出部553与分闸杆驱动端配合的一端的宽度大于或等于导向槽组的第四导向槽24的宽度，以保证分闸杆驱动端和跳扣件伸出部553的可靠配合。
优选的，如图8所示，所述按钮机构复位件10a为一弹性金属件，一端与断路器壳体2固定相连，且位于传动件51一侧，另一端向按钮机构1方向延伸，且与按钮机构1驱动配合；所述小型断路器处于分闸状态时，按钮机构1与按钮机构复位件10a分离，小型断路器处于合闸状态时，按钮机构1与按钮机构复位件10a接触，按钮机构复位件10a为按钮机构1提供复位方向的反作用力。需要指出的是，所述小型断路器处于分闸状态时，按钮机构1也可以与按钮机构复位件10a接触。
优选的，所述按钮机构复位件10a具体为一扭簧或弯曲金属杆/片，其一端固定在断路器壳体2上，另一端与按钮机构1配合。可以理解的，在其他实施方式中，按钮机构复位件10a也可以是设置在断路器壳体2和按钮机构1之间的压簧，为按钮机构1提供反作用力。
如图11-13所示，所述断路器壳体2包括设置在其一侧的两个插线孔208和两个拆线孔201，两个拆线孔201分别与两个插线孔208对应配合，一个拆线孔201与一个插线孔208为一组，每一组的插线孔208和拆线孔201均与一个出线端100对应设置，外接导线可穿过插线孔208与出线端100相连，用户可通过拆线孔201操作出线端100，从而将外接导线从插线孔208处拔出。
如图13-15所示，本发明的小型断路器还包括指示装置，指示装置包括第一挡板5a、第二挡板6a、联动件7a和第二传动杆8a，第一挡板5a和第二挡板6a分别与两个拆线孔201对应配合，第一挡板5a一端与联动件7a驱动相连，另一端与第二传动杆8a一端驱动相连，第二传动杆8a另一端与第二挡板6a驱动相连，且第二传动杆8a中部枢转设置在断路器壳体2上；按压按钮机构1使小型断路器合闸，按钮机构1通过联动件7a驱动第一挡板5a移动至一个拆线孔201处并遮挡该拆线孔201，第一挡板5a通过第二传动杆8a驱动第二挡板6a移动至另一个拆线孔201并遮挡该拆线孔201。具体的，结合图11和12所示，以靠近按钮机构1的插线孔208为第一插线孔，远离按钮机构1的插线孔208为第二插线孔，与第一插线孔配合的拆线孔201为第一拆线孔，与第二插线孔配合的拆线孔201为第二拆线孔；所述第一挡板5a与第二拆线孔配合，第二挡板6a与第一拆线孔 配合，第二传动杆8a中部枢转设置在断路器壳体2上，按压按钮机构1，按钮机构1驱动联动件7a转动，联动件7a带动第一挡板5a向第二拆线孔移动并遮挡第二拆线孔，第一挡板5a驱动第二传动杆8a转动，第二传动杆8a带动第二挡板6a向第一拆线孔移动并遮挡第一拆线孔。
优选的，所述第一挡板5a设置在第二拆线孔和一个出线端100之间，第二挡板6a设置在第二拆线孔和另一个出线孔100之间。进一步的，两个出线端100分别与本发明小型断路器的两极对应设置。
如图11-13所示，所述断路器壳体2还包括第一滑腔27和第二滑腔26，第一滑腔27设置在一个插线孔208一侧且靠近按钮机构1，第一挡板5a滑动设置在第一滑腔27内，第二滑腔26设置在另一个插线孔208一侧且远离按钮机构1，第二挡板6a滑动设置在第二滑腔26内，第一滑腔27与第二滑腔26相通，第二传动杆8转动设置在第一滑腔27和第二滑腔26的连通处，且第二传动杆8a的两端分别位于第一滑腔27和第二滑腔26内，且第二传动杆8a的两端分别与第一挡板5a、第二挡板6a驱动相连。具体的，如图11-13所示，所述第一滑腔27设置在第二拆线孔一侧且靠近按钮机构1，第二滑腔26设置在第一拆线孔一侧且远离按钮机构1，第一滑腔27和第二滑腔26相通，第二传动杆8a转动设置在第一滑腔27和第二滑腔26的连通处且第二传动杆8a位于第一插线孔和第二插线孔之间，第一挡板5a滑动设置在第一滑腔27内，第一挡板5a一端与联动件7a驱动相连，另一端与第二传动杆8a的一端驱动相连，第二传动杆8a另一端与第二挡板6a驱动相连，第二挡板6a滑动设置在第二滑腔26内，第一插线孔和第一拆线孔下方设有与二者配合的一个出线端100，第二插线孔和第二拆线孔下方设有与二者配合的一个出线端100，第一挡板5a设置在第一拆线孔和与第一拆线孔对应的出线端100之间，第二挡板6a设置在第二拆线孔和与第二拆线孔对应的出线端100之间。
如图14和15所示，所述第一挡板5a包括第一挡板受动端52a、第一挡板连接臂51a和第一挡板主体50a，第一挡板连接臂51a两端分别与第一挡板受动端52a、第一挡板主体50a相连，第一挡板受动端52a一侧设置第一挡板受动端开槽53a，第一挡板受动端开槽53a与联动件7a驱动相连，第一挡板主体50a下侧设置第一挡板主体开槽54a；所述第二挡板6a包括第二挡板主体60a以及设置在第二挡板主体60a下侧的第二挡板主体开槽61a；所述第二传动杆8a包括第二传动杆主干80a、第二传动杆受动端82a和第二传动杆驱动端81a，第二传动杆主干80a枢转设置在断路器壳体2上，第二传动杆受动端82a与第一挡板主体开槽54a驱动相连，第二传动杆驱动端80a与第二挡板主体开槽61a驱动相连。
优选的，所述第二传动杆受动端82a和第二传动杆驱动端81a均为圆柱形结构，且二者均与第二传动杆主干80a垂直相连。
优选的，所述第一挡板受动端52a和第一挡板主体50a分别与第一挡板连接臂51a垂直相连。进一步的，所述第一挡板受动端开槽53a的延伸方向与第一挡板连接臂51a的延伸方向垂直，第一挡板主体开槽54a的延伸方向与第一挡板连接臂51a的延伸方向垂直，第一挡板受动端开槽53a的延伸方向与第一挡板主体开槽54a的延伸方向垂直。具体的，如图15所示方向，所述第一挡板受动端开槽53a沿竖直方向延伸，第一挡板主体开槽54a沿水平方向延伸，第一挡板受动端开槽53a的延伸方向与第一挡板主体开槽54a的延伸方向垂直。
优选的，所述第二传动杆主干80a中部设置第二传动杆枢轴83a，断路器壳体2的第一滑腔27和第二滑腔26的连通处设有第二传动杆枢转孔28，第二传动杆枢轴83a转动设置在第二传动杆枢转孔28内。
如图14和15所示，为本发明联动件7a的一种实施例。
所述联动件7a为V字形结构，其中部枢转设置在断路器壳体2a上，联动件7a包括联动件受动臂71a和联动件驱动臂70a，联动件受动臂71a中部设置联动件受动臂开槽73a，联动件驱动臂70a上设有联动件驱动柱72a；所述按钮组件1包括按钮驱动柱，按钮驱动柱与联动件受动臂开槽73a驱动相连，联动件驱动柱72a与第一挡板受动端开槽53a驱动相连。
需要指出的是，如图14和15所示，所述按钮机构1也可以不单独设置按钮驱动柱，而是第一 连杆1050穿过按钮机构1的传动杆安装台12与联动件7a驱动相连。上述连接方式，有利于简化按钮机构1的结构，从而降低生产成本。
如图12所示方向，按压按钮机构1，按钮机构1通过按钮驱动柱或第一连杆1050使联动件7a顺时针旋转，按钮机构1复位时，按钮机构1通过按钮驱动柱或第一连杆1050带动联动件7a逆时针旋转，以恢复到7a的初始状态。
如图16和17所述，为本发明联动件7a的另一种实施例。
所述联动件7a为V字形机构，其中部枢转设置在断路器壳体2a上，联动件7a包括联动件受动臂71a和联动件驱动臂70a，联动件受动臂71a与按钮机构1的按钮驱动柱接触相连或者与第一连杆1050的一端接触相连，联动件驱动臂70a上设有联动件驱动柱72a，联动件驱动柱72a与第一挡板受动端开槽53a驱动相连。具体的，所述按钮驱动柱或第一连杆1050一端设置在联动件受动臂71a的上侧与其驱动相连。
所述指示装置还包括指示装置复位件9a，指示装置在指示装置复位件9a的作用下复位，从而避开拆线孔201。优选的，所述指示装置复位件9a为复位弹簧，其一端与断路器壳体2相连，另一端与联动件7a的联动件受动臂71a或者与第一挡板5a相连。
如图16和17所示，按压按钮机构1，按钮机构1通过按钮驱动柱或第一连杆1050使联动件7a顺时针旋转，按钮机构1复位时，则由复位弹簧使联动件7a逆时针旋转，以恢复到联动件7a的初始状态。
需要指出的是，也可以在断路器壳体2的一侧单独设置指示孔(图中未示出)，使指示装置与指示孔配合以指示断路器的合闸状态或分闸状态，指示装置与按钮机构联动配合，按压按钮机构使所述小型断路器合闸时，指示装置移动至指示孔处并遮挡指示孔，在按钮机构复位后，指示装置离开指示孔。本实施例中，将拆线孔201作为指示孔，可有效利用拆线孔，并可利用指示装置挡住拆线孔，防止在断路器合闸状态下，对拆线孔进行操作。
如图2所示，所述出线端100包括导电板102和弹性件101，导电板102固定设置在断路器壳体2上，弹性件101包括弹性件固定端1011和弹性件压线端1010，弹性件固定端1011固定设置在断路器壳体2上，弹性件压线端1010与导电板102弹性接触，且弹性件压线端1010与一组插线孔208、拆线孔201对应设置，外接导线穿过插线孔208插入弹性件压线端1010和导电板2之间，弹性件压线端1010的复位力将外接导线压紧在弹性件压线端1010和导电板102之间，通过拆线端201对弹性件压线端1010施加压力，使弹性件压线端与外接导线分离，即可将外接导线从插线孔208处拔出。优选的，如图2所示，所述断路器壳体2还包括设置在其上的弹性件固定柱105，弹性件固定柱105和断路器壳体2之间形成弧形的弹性件安装槽，弹性件固定端1011通过弧形弯曲结构1012与弹性件压线端1010相连，弧形弯曲结构1012设置在弹性件安装槽内。进一步的，如图12和13所示，所述导电板102上端设有弹性件限位凸起，弹性件限位凸起与弹性件压线端1010限位配合。具体的，如图1和2所示方向，所述按钮机构1左侧设置出线端接线腔，出线端接线腔上端设有一个插线孔208和一个拆线孔201，导电板102固定设置在出线端接线腔的右下角处，弹性件固定柱105设置在出线端接线腔的左上角处，弹性件固定柱105和断路器壳体2之间形成弧形的弹性件安装槽，弹性件101的弧形弯曲结构1012设置在弹性件安装槽内，弹性件固定端1011下端与断路器壳体2弹性接触，弹性件压线端1010右端与导电板102弹性接触，且与弹性件限位凸起限位配合。
如图18和20所示，为本发明断路器壳体2的一种实施例。
如图18所示方向，本发明的断路器壳体2大致为长方体结构，所述断路器壳体2包括相对设置的前端面和后端面、相对设置的左侧面和右侧面，以及相对设置的上表面和下表面，断路器壳体2包括包括插线孔208、拆线孔201、操作件安装孔1020、第一开孔203、第二开孔204、进线孔21a和信号线接孔22a，操作件安装孔1020设置在断路器壳体2前端面的上端，用于安装操作件，两个插线孔208和两个拆线孔201设置在断路器壳体2前端面且位于操作件安装孔1020下方，左侧的插线孔208和左侧的拆线孔201为一组，与一个出线端100配合使用，右侧的插线孔208和右侧的拆线孔201为一组，与另外一个出线端100配合使用，第一开孔203与防合闸机构的第一锁定件3配 合使用，用于使第一锁定件3的第一锁定件凸起30穿过第一开孔203突出在断路器壳体2的上侧，第二开孔204与锁定机构的第二锁定件4配合使用，用于使第二锁定件4的第二锁定件凸起40穿过第二开孔204突出在断路器壳体2上侧，且与断路器装配位置的壳体限位配合，两个进线孔21a分别设置在断路器壳体2的后端面，两个进线孔21a上下间隔设置，分别位于后端面的上下两端，且信号线接孔22a设置在两个进线孔21a之间；所述进线孔21a内设有插接型接线端子，具体为进线端8，以方便断路器装配至断路器装配位置时与外接导线插接配合。需要指出的是，所述进线端8也可以位于前端面一侧，而将出线端100设置在后端面一侧。
需要指出的是，一极断路器对应一个进线端与一个出线端，本实施例中具有两极断路器，包括L极断路器及N极断路器，N极断路器无动触头与静触头，其利用导体直接将对应N极断路器的进线端与出线端连接。
如图6所示，所述断路器壳体2的下表面上设有调节螺钉安装孔212，调节螺钉通过调节螺钉安装孔212装配在断路器壳体2上，并与过载保护机构9的双金属片接触，用于调节双金属片的位置。
优选的，如图18所示，所述左侧面和/或右侧面上设有安装导向定位台阶214，所述安装导向定位台阶214突出于左侧面和/或右侧面，在小型断路器装配至断路器装配位置至安装到位的过程中，安装导向定位台阶214与断路器装配位置的壳体配合进行导向，防止小型断路器装配不到位，具体的，所述安装导向定位台阶214包括第一台阶2141和第二台阶2142，第一台阶2141与前端面的间距大于第二台阶2142与前端面的间距，第一台阶2141的上端与断路器壳体2的上表面相连，第二台阶2142的下端与断路器壳体2的下表面相连。进一步的，所述第一台阶2141与第二台阶2142平行设置，且二者均平行于前端面和后端面。
优选的，如图12至18所示，所述小型断路器还包括指示装置，指示装置与操作件驱动配合，本实施方式中，指示装置与操作件驱动配合，小型断路器合闸时，操作件驱动指示装置遮挡拆线孔201。进一步的，所述指示装置可以是上述的指示装置。进一步的，所述操作件可以是按钮机构1或操作手柄。
优选的，如图18所示，所述操作件安装孔1020的左右两侧各设有一个防护凸台20a，以减少操作件受外部物体的碰撞，从而有利于延长操作件的使用寿命。优选的，一个防护凸台20a设置在断路器壳体2的左侧面前端，另一个防护凸台20a设置在断路器壳体2的右侧面前端。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (13)

  1. 一种小型断路器，其特征在于，其包括按钮机构(1)、断路器壳体(2)及锁定机构；所述按钮机构(1)设置在断路器壳体(2)的一端且与其滑动配合，锁定机构包括第二锁定件(4)，第二锁定件(4)枢转设置在断路器壳体(2)上，断路器壳体(2)包括设置在其一侧的第二开孔(204)，第二锁定件(4)一端与按钮机构(1)驱动配合，另一端穿过第二开孔(204)与断路器装配位置的壳体限位配合；朝断路器壳体(2)外拉动按钮机构(1)时，按钮机构(1)驱动第二锁定件(4)转动，使第二锁定件(4)与断路器装配位置的壳体解除限位配合。
  2. 根据权利要求1所述的小型断路器，其特征在于：所述按钮机构(1)包括按钮头(10)、按钮主体(11)和第一连杆(1050)，第一连杆(1050)一端插装在按钮主体(11)上且与第二锁定件(4)驱动配合，按钮头(10)位于按钮主体(11)的一侧以便用户操作按钮头(10)，第一连杆(1050)与所述按钮主体(11)传动配合，朝断路器壳体(2)外拉动按钮机构(1)时，第一连杆(1050)驱动第二锁定件(4)转动，使第二锁定件(4)与断路器装配位置的壳体解除限位配合。
  3. 根据权利要求2所述的小型断路器，其特征在于：所述锁定机构还包括第二锁定弹簧，第二锁定件(4)包括第二锁定件主体(41)以及分别设置在第二锁定件主体(41)两端的第二锁定件凸起(40)、第二锁定件驱动臂(42)，第二锁定件主体(41)枢转安装在断路器壳体(2)上，第二锁定件驱动臂(42)与第一连杆(1050)驱动配合，所述第二锁定弹簧使所述第二锁定件凸起(40)穿过第二开孔(204)突出在断路器壳体(2)外侧，所述小型断路器装配至断路器装配位置且安装到位后，第二锁定件凸起(40)穿过第二开孔(204)与断路器装配位置的壳体限位配合，朝断路器壳体(2)外拉动按钮机构(1)移动时，第一连杆(1050)驱动第二锁定件驱动臂(42)旋转，使得第二锁定件凸起(40)向断路器壳体(2)内部移动，第二锁定件(4)解除与断路器装配位置的壳体限位配合。
  4. 根据权利要求2所述的小型断路器，其特征在于：所述第一连杆(1050)为U型杆，所述按钮主体(11)上设置有传动杆安装台(12)，所述第一连杆(1050)的一端穿过所述传动杆安装台(12)并形成突出在传动杆安装台(12)一侧的第一传动杆(3041)，且第一传动杆(3041)与第二锁定件(4)驱动配合，朝断路器壳体(2)外拉动按钮机构(1)时，第一传动杆(3041)驱动第二锁定件(4)转动，使第二锁定件(4)与断路器装配位置的壳体解除限位配合。
  5. 根据权利要求1所述的小型断路器，其特征在于：所述小型断路器还包括操作机构(5)、短路保护机构(6)、灭弧机构(7)、过载保护机构(9)、动触头(56)和静触头(560)；所述按钮机构(1)与操作机构(5)驱动相连，操作机构(5)与动触头(56)相连，动触头(56)和静触头(560)配合，短路保护机构(6)和过载保护机构(9)分别与操作机构(5)驱动配合；所述按钮机构(1)设置在断路器壳体(2)一端，短路保护机构(6)和灭弧机构(7)设置在断路器壳体(2)另一端，操作机构(5)设置在按钮机构(1)和短路保护机构(6)之间，过载保护机构(9)设置在操作机构(5)一侧，且位于灭弧机构(7)和按钮机构(1)之间。
  6. 根据权利要求5所述的小型断路器，其特征在于：所述按钮机构(1)通过第一连杆(1050)与操作机构(5)驱动相连，朝断路器壳体(2)内侧按动按钮机构(1)时，按钮机构(1)通过第一连杆(1050)驱动操作机构(5)动作，操作机构(5)带动动触头(56)与静触头(560)闭合；朝断路器壳体(2)外侧拉动按钮机构(1)时，按钮机构(1)通过第一连杆(1050)驱动操作机构(5)动作，操作机构(5)带动动触头(56)与静触头(560)断开。
  7. 根据权利要求5所述的小型断路器，其特征在于：所述按钮机构(1)通过第一连杆(1050)与操作机构(5)驱动相连，朝断路器壳体(2)内侧按动按钮机构(1)时，按钮机构(1)通过第一连杆(1050)驱动操作机构(5)动作，操作机构(5)带动动触头(56)与静触头(560)闭合；所述操作机构(5)还包括分闸杆(15)，分闸杆(15)包括分闸杆连接端和分闸杆驱动端，分闸杆连接端与按钮机构(1)相连，分闸杆驱动端与操作机构(5)驱动配合；所述小型断路器处于合闸状态时，朝断路器壳体(2)内按压按钮机构(1)，分闸杆(15)驱动操作机构(5)动作，操作机 构(5)带动动触头(56)与静触头(560)断开。
  8. 根据权利要求7所述的小型断路器，其特征在于：所述操作机构(5)还包括按钮机构复位件(10a)，以及与分闸杆(15)配合且设置在断路器壳体(2)上的导向凸台(20)和导向槽组；所述导向槽组包括第一导向槽(21)、第二导向槽(22)、第三导向槽(23)、第四导向槽(24)和第五导向槽(25)，第一导向槽(21)、第二导向槽(22)、第三导向槽(23)、第四导向槽(24)和第五导向槽(25)首尾相连形成围绕导向凸台(20)的环形的导向槽组；
    所述小型断路器处于分闸状态时，按压按钮机构(1)，分闸杆(15)的分闸杆驱动端由第一导向槽(21)，经过第二导向槽(22)，进入第三导向槽(23)，所述小型断路器进入合闸状态，放开按钮机构(1)，按钮机构复位件(10a)通过按钮机构(1)带动分闸杆驱动端由第三导向槽(23)进入第四导向槽(24)，且使分闸杆驱动端与导向凸台(20)限位配合；再次按压按钮机构(1)，按钮机构(1)通过分闸杆驱动端驱动操作机构(5)动作，操作机构(5)带动按钮机构(1)复位，且按钮机构(1)带动分闸杆驱动端由第四导向槽(24)，经由第五导向槽(25)，进入第一导向槽(21)内，所述小型断路器进入分闸状态。
  9. 根据权利要求8所述的小型断路器，其特征在于：所述操作机构(5)还包括传动件(51)、第二连杆(52)、锁扣件(53)、支持件(54)、跳扣件(55)和第一复位弹簧(57)，传动件(51)、支持件(54)分别枢转设置在断路器壳体(2)上，且支持件(54)通过第一复位弹簧(57)与断路器壳体(2)弹性相连，锁扣件(53)和跳扣件(55)分别枢转设置在支持件(54)上，按钮机构(1)通过第一连杆(1050)与传动件(51)驱动相连，传动件(51)通过第二连杆(52)与锁扣件(53)驱动相连，锁扣件(53)和跳扣件(55)锁扣配合，且跳扣件(55)与支持件(54)驱动配合，支持件(54)与动触头(56)相连，在所述小型断路器处于合闸状态时，按压按钮机构(1)，按钮机构(1)通过分闸杆驱动端跳扣件(55)转动，使跳扣件(55)与锁扣件(53)解除锁扣配合，操作机构(5)的支持件(54)带动动触头(56)与静触头(560)断开。
  10. 根据权利要求6所述的小型断路器，其特征在于：所述操作机构(5)包括传动件(51)、第二连杆(52)、锁扣件(53)、支持件(54)和跳扣件(55)，传动件(51)、支持件(54)分别枢转设置在断路器壳体(2)上，锁扣件(53)、跳扣件(55)分别枢转设置在支持件(54)上，按钮机构(1)通过第一连杆(1050)与传动件(51)驱动相连，传动件(51)通过第二连杆(52)与锁扣件(53)驱动相连，支持件(54)与动触头(56)相连，锁扣件(53)与跳扣件(54)锁扣配合；所述小型断路器处于分闸状态时，按压按钮机构(1)，按钮机构(1)通过第一连杆(1050)驱动操作机构(5)动作，支持件(54)带动动触头(56)与静触头(560)闭合，小型断路器进入合闸状态，拉拔按钮机构(1)，按钮机构(1)通过第一连杆(1050)驱动锁扣件(53)转动，锁扣件(53)驱动操作机构(5)动作，支持件(54)带动动触头(56)与静触头(560)断开，小型断路器进入分闸状态。
  11. 根据权利要求9或10所述的小型断路器，其特征在于：所述跳扣件(55)包括跳扣件第一臂(550)、跳扣件第二臂(551)及跳扣件第三臂(552)，所述跳扣件第一臂(550)与锁扣件(53)锁扣配合，所述跳扣件第二臂(551)与过载保护机构(9)驱动配合，所述跳扣件第三臂(552)与短路保护机构(6)驱动配合，出现短路故障时，短路保护机构(6)通过跳扣件第三臂(552)驱动跳扣件(55)转动，使跳扣件(55)与锁扣件(53)解除锁扣配合，出现过载故障时，过载保护机构(9)通过跳扣件第二臂(551)驱动跳扣件(55)转动，使跳扣件(55)与锁扣件(53)解除锁扣配合；
    所述跳扣件(55)为“丄”形结构，跳扣件第二臂(551)和跳扣件第三臂(552)处于一条直线上，跳扣件第一臂(550)位于跳扣件第二臂(551)和跳扣件第三臂(552)之间，与跳扣件第二臂(551)和跳扣件第三臂(552)所在的直线垂直；所述跳扣件(55)还包括跳扣件伸出部(553)，跳扣件伸出部(553)的一端与跳扣件第二臂(551)相连，跳扣件伸出部(553)的自由端被触动后，跳扣件(55)转动与锁扣件(53)解锁。
  12. 根据权利要求5所述的小型断路器，其特征在于：还包括出线端(100)和进线端(8)，出 线端(100)位于按钮机构(1)一侧，且出线端(100)和按钮机构(1)位于断路器壳体(2)同一端，进线端(8)、断路器保护机构(6)和灭弧机构(7)位于断路器壳体(2)另一端，短路保护机构(6)和灭弧机构(7)并排设置，且位于进线端(8)与操作机构(5)之间，所述进线端(8)为插接型接线端子。
  13. 根据权利要求12所述的小型断路器，其特征在于：所述出线端(100)包括导电板(102)和弹性件(101)，导电板(102)固定设置在断路器壳体(2)上，弹性件(101)包括弹性件固定端(1011)和弹性件压线端(1010)，弹性件固定端(1011)固定设置在断路器壳体(2)上，弹性件压线端(1010)与导电板(102)弹性接触，外接导线插入弹性件压线端(1010)和导电板(102)之间，被弹性件压线端(1010)和导电板(102)压紧；所述断路器壳体还包括设置在其一侧的插线孔(208)和拆线孔(201)，插线孔(208)、拆线孔(201)分别与弹性件压线端(1010)对应设置；所述外接导线穿过插线孔(208)插入弹性件压线端(1010)和导电板(102)之间，通过拆线孔(201)对弹性件压线端(1010)施加压力，使弹性件压线端(1010)与外接导线分离，即可将外接导线从插线孔(208)处拔出。
PCT/CN2019/127879 2018-12-28 2019-12-24 小型断路器 WO2020135410A1 (zh)

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