WO2021093874A1 - Disjoncteur enfichable - Google Patents

Disjoncteur enfichable Download PDF

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Publication number
WO2021093874A1
WO2021093874A1 PCT/CN2020/128873 CN2020128873W WO2021093874A1 WO 2021093874 A1 WO2021093874 A1 WO 2021093874A1 CN 2020128873 W CN2020128873 W CN 2020128873W WO 2021093874 A1 WO2021093874 A1 WO 2021093874A1
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WO
WIPO (PCT)
Prior art keywords
circuit breaker
plug
indicator
lock
terminal
Prior art date
Application number
PCT/CN2020/128873
Other languages
English (en)
Chinese (zh)
Inventor
葛伟骏
朱俊
卢科军
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
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 AU2020381661A priority Critical patent/AU2020381661B2/en
Priority to EP20887787.8A priority patent/EP4060705A4/fr
Priority to BR112022009330A priority patent/BR112022009330A2/pt
Publication of WO2021093874A1 publication Critical patent/WO2021093874A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—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
    • H01H71/02—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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • 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
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/06—Housings; Casings; Bases; Mountings
    • H01H73/08—Plug-in housings
    • 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
    • H01H2071/046—Means for indicating condition of the switching device exclusively by position of operating part, e.g. with additional labels or marks but no other movable indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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
    • H01H71/505—Latching devices between operating and release mechanism
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc chamber

Definitions

  • the invention relates to the field of low-voltage electrical appliances, in particular to a plug-in circuit breaker.
  • a standard cabinet uses 1U as a working unit, and its height is about 44.45mm.
  • the internal components of the cabinet need to be continuously miniaturized to meet the installation size requirements of the 1U unit, so as to increase the density of the components in the cabinet to save the overall volume of communication equipment.
  • the height of the existing ordinary miniature circuit breaker is usually between 80mm and 90mm. In addition to the space for the wire connection at the inlet and outlet ends, it needs to occupy a height of 3U, which restricts the development of the miniaturization of the communication cabinet; in addition, the ordinary miniature circuit breaker The outlet end of the cable is located inside the cabinet, which is not conducive to user wiring. Furthermore, for ordinary miniature circuit breakers, if the auxiliary signal function is added, auxiliary contact accessories or other similar functional accessories are often added to the side of the circuit breaker to achieve this, which increases the use cost, takes up more installation space, and is not conducive to communication. The miniaturization of the cabinet is developed.
  • the purpose of the present invention is to overcome the defects of the prior art and provide a plug-in circuit breaker with compact structure and small volume.
  • a plug-in circuit breaker comprising a circuit breaker housing and at least one protection pole, the circuit breaker housing is provided with at least one protection pole assembly cavity; each of the protection poles includes an operation button, and is arranged in the protection pole assembly cavity
  • the operating mechanism connected to the operating button drive, the protection mechanism that cooperates with the operating mechanism, the arc extinguishing system, the first incoming terminal, the first outgoing terminal, the movable contact connected to the operating mechanism, and the movable contact are used together Static contact
  • One end of the operation button is inserted into the circuit breaker housing, the operation button and the first outlet terminal are arranged at one end of the circuit breaker housing, and the first inlet terminal is arranged at the other end of the circuit breaker housing; the arc extinguishing system is arranged at The middle of the protective pole assembly cavity is located on the side of the first inlet terminal, the operating mechanism is set between the operating button and the arc extinguishing system, and the protection mechanism is set between the first outlet terminal and the arc extinguishing system and on the side of the operating mechanism;
  • the plug-in circuit breaker is in the closed state and the operating mechanism is in the locked state.
  • the protection mechanism drives the operating mechanism to trip.
  • the plug-in circuit breaker is in the closed state, the operating mechanism is in the locked state, when a short-circuit fault or overload fault occurs, the protection mechanism drives the operating mechanism to trip, the plug-in circuit breaker trips and the operating mechanism enters the trip state, Pull the operating button to move to the opening direction, drive the operating mechanism to return to the locked state, and the plug-in circuit breaker enters the opening state; or, the plug-in circuit breaker is in the closed state and a short circuit fault or overload fault occurs , The protection mechanism drives the operating mechanism to make the plug-in circuit breaker enter the open state. After the fault is removed, press the operating button to move it in the closing direction, and drive the operating mechanism to move the plug-in circuit breaker into the closed state.
  • the operating mechanism includes a U-shaped connecting rod, an operating handle, a contact support rod, a jumper, a lock, a lock return spring, and a main tension spring;
  • the operating handle is pivotally arranged on the circuit breaker housing, one end of the operating handle is drivingly connected with the operating button through a U-shaped connecting rod, and the other end is rotatably connected to one end of the contact support rod, and the other end of the contact support rod is provided with a movable contact
  • One end of the tripping buckle is pivotally arranged on the circuit breaker housing, and the middle part is connected to the end of the contact support rod with a movable contact through the main tension spring; the middle part of the lock buckle is rotatably arranged, and one end is connected to the lock buckle return spring , The other end is locked with the other end of the jumper and is drivingly matched with the protection mechanism.
  • the jumper has a U-shaped structure, including a jumper first arm and a jumper second arm that are arranged oppositely, and the bottom of the U-shaped structure of the jumper is set close to the end where the operating handle is connected to the contact support rod.
  • One end of the first arm of the buckle is pivoted, the other end is connected with one end of the second arm of the jumper, and the other end of the second arm of the jumper is matched with the lock buckle.
  • the operating mechanism further includes a trip reset spring, one end of the trip reset spring is connected to the circuit breaker housing, and the other end is connected to the trip; the plug-in circuit breaker is in the closed state and a short circuit fault occurs or
  • the protection mechanism drives the lock and the trip to release the lock coordination, the plug-in circuit breaker trips, and the trip reset spring drives the trip to rotate, so that the trip and the lock are re-locked and coordinated, and the plug-in circuit breaker enters the branch at the same time. Gate state.
  • the contact support rod has an overall arch structure, one end is provided with a support rod shaft rotatingly connected with the operating handle, and the other end is provided with a movable contact, and the movable contact includes a movable contact plate connected with the contact support rod and The movable contact set at one end of the movable contact plate, and the other end of the movable contact plate is connected with the main tension spring; the middle part of the contact support rod is also provided with an arc isolation plate.
  • the arc isolation plate enters Between the moving contact and the static contact, when the plug-in circuit breaker is in the closed state, the arc shield is moved out between the moving contact and the static contact.
  • the operating mechanism further includes a linkage
  • the linkage includes a linkage rod and a linkage shaft provided at one end of the linkage rod. Both ends of the linkage shaft are pivotally provided on the circuit breaker housing, and the middle of the linkage shaft is provided along its axial direction.
  • the plug-in circuit breaker includes a plurality of protective poles.
  • the linkage shafts of the multiple protective poles are connected by a linkage connecting shaft.
  • the linkage connecting shafts are respectively matched with the polygonal holes of each linkage.
  • the protection mechanism includes a magnetic yoke and a bimetallic sheet, the magnetic yoke is arranged on one side of the lock, the bimetallic sheet is arranged in the middle of the magnetic yoke and between the magnetic yoke and the lock, and one end of the bimetallic sheet is fixedly arranged and connected to the lock.
  • the first outlet terminal is electrically connected, and the other end is driven by the lock buckle and electrically connected with the movable contact;
  • the lock catch When a short-circuit fault occurs, the lock catch is attracted to swing in the direction of the magnetic yoke to release the lock from the jumper; when an overload fault occurs, the bimetal drives the lock to swing in the direction of the magnetic yoke to release the lock with the jumper Cooperate.
  • the middle part of the lock buckle is rotatably arranged on one end of the magnetic yoke, one end of the lock buckle is connected to the circuit breaker housing through the lock return spring, and the other end is arranged opposite to the magnetic yoke;
  • a conductive plate is electrically connected with the first outlet terminal, the other end is electrically connected with the contact support rod through a soft connection, and the static contact is electrically connected with the first inlet terminal.
  • the cross-section of the yoke is in a singular shape, one end of the yoke is provided with two yoke support arms oppositely arranged, and the yoke support arm is provided with a yoke limit slot;
  • the lock includes a lock The buckle reset end, the buckle support arm, the buckle body, the buckle hole and the buckle receiving end, the buckle resetting end, the buckle body and the buckle receiving end are connected in sequence, and the connection between the buckle reset end and the buckle body There is a lock support arm on each side of the location.
  • the receiving end of the lock has an L-shaped structure. One end is bent and connected to the lock body, and the other end is driven and matched with the bimetallic plate.
  • the two lock support arms are respectively arranged on two In the magnetic yoke limiting slot, the lock body is arranged opposite to the magnetic yoke, and the lock hole is arranged on the lock body to cooperate with the jumper lock.
  • a locking mechanism which includes a first locking member, one end of the first locking member is slidably arranged in the circuit breaker housing, and the other end is a first protrusion protruding outside the circuit breaker housing;
  • the shell of the circuit breaker assembly position squeezes the first protrusion to make the first locking member move toward the inside of the circuit breaker shell as a whole.
  • the first protrusion protrudes from the outside of the circuit breaker casing to fit with the casing limit of the circuit breaker assembly position;
  • the locking mechanism also includes a second locking member, the middle part of the second locking member is rotatably arranged, one end is driven to cooperate with the operating button, and the other end is driven to cooperate with the first locking member; when the plug-in circuit breaker is in the open state, it is pulled out
  • the operating button drives the first protrusion to move toward the inside of the circuit breaker housing through the second locking member, and releases the limited fit of the first protrusion and the housing of the circuit breaker assembly position.
  • the second locking member further includes a second protrusion, and the second protrusion is provided at one end of the second locking member and the first locking member;
  • the operating button drives the second locking member to rotate, so that the second protrusion protrudes from the circuit breaker housing; when the plug-in circuit breaker is in the open state, the operating button drives the first The two locking parts rotate to move the second protrusion into the circuit breaker housing.
  • one end of the operation button inserted in the circuit breaker housing is the inner end of the button, and the other end of the operation button is the outer end of the button; the operation button is provided with an indicator slot, and the outer end of the button is provided with an indicator The indicator hole is communicated with the indicator slot; the plug-in circuit breaker also includes an indicator slidably inserted in the indicator slot, and one end of the indicator is provided with a closing indicator surface and a sub-switching surface respectively matched with the indicator hole. Gate indicating surface;
  • the opening indicating surface is set opposite to the indicating hole, and the operating button is pressed to move it in the closing direction.
  • the indicator moves in the indicator slot, and the plug-in circuit breaker enters the closing direction.
  • the closing indicating surface is set opposite to the indicating hole, the operation button is pulled to move it to the opening direction, and the indicating piece moves in the indicating piece slot.
  • the opening indication The surface is set opposite to the indicating hole.
  • the indicator is provided with an indicator track shaft;
  • the circuit breaker housing is provided with an indicator track groove, the indicator track groove is an inclined track groove, and the indicator track shaft is slidably arranged on the indicator track
  • the indicator track slot drives the indicator to move in the indicator slot through the indicator track shaft, so that the closing indicator surface/opening indicator surface and the indicator hole are arranged opposite to each other;
  • the operation button also includes indicator slide grooves respectively provided on a pair of side walls of the indicator slot, and the extension direction of the indicator slide groove is perpendicular to the moving direction of the operation button;
  • the indicator also includes a pair of indicator slide grooves respectively provided on the pair of side walls. There are two indicator slides on the side, and the indicator slide is slidably arranged in the indicator chute.
  • the protection mechanism is arranged between the first outlet terminal and the arc extinguishing system and is located on the side of the operating mechanism.
  • the layout of the protection pole is more compact, which significantly reduces the volume of the plug-in circuit breaker, which is beneficial to Save the internal space of the communication cabinet, in line with the development trend of miniaturization of the communication cabinet.
  • the protection mechanism has a simple structure, and the lock catch is directly driven by the magnetic yoke. While ensuring the short-circuit protection and overload protection functions, the assembly space occupied by the protection mechanism is significantly reduced, which is beneficial to reducing the volume of the plug-in circuit breaker.
  • Figure 1 is a schematic diagram of the structure of the plug-in circuit breaker of the present invention, which at least shows the appearance structure of the plug-in circuit breaker;
  • Figure 2 is a schematic structural diagram of the neutral pole of the plug-in circuit breaker of the present invention.
  • Figure 3 is a schematic diagram of the structure of the protective pole of the plug-in circuit breaker of the present invention.
  • Figure 4 is another structural schematic diagram of the protection pole of the plug-in circuit breaker of the present invention.
  • Figure 5 is a schematic structural diagram of the first embodiment of the operating mechanism of the present invention, at this time the plug-in circuit breaker is in the open state;
  • Fig. 6 is a schematic structural diagram of the first embodiment of the operating mechanism of the present invention, when the plug-in circuit breaker is in the closed state;
  • Figure 7 is a schematic structural diagram of the first embodiment of the operating mechanism of the present invention, at this time the plug-in circuit breaker is in a tripped state;
  • FIG. 8 is a schematic structural diagram of the second embodiment of the operating mechanism of the present invention, at this time the plug-in circuit breaker is in the closed state;
  • Figure 9 is a schematic structural view of the second embodiment of the operating mechanism of the present invention, at this time the plug-in circuit breaker is in an open state;
  • Figure 10 is an exploded view of the locking mechanism of the present invention.
  • Figure 11 is another exploded view of the locking mechanism of the present invention.
  • Figure 12 is a schematic structural diagram of the indicator of the present invention, showing at least the horizontal arm of the indicator and the vertical arm of the indicator;
  • Figure 13 is a schematic structural diagram of the indicator of the present invention, at least showing the track shaft of the indicator;
  • FIG. 14 is a schematic structural view of the first locking member of the present invention, showing at least the first protrusion, the first movable protrusion and the second movable protrusion;
  • 15 is a schematic diagram of the structure of the first locking member of the present invention, showing at least the locking member spring limiting groove and the first track groove;
  • Figure 16 is a schematic structural diagram of the locking mechanism of the present invention, at this time the plug-in circuit breaker is in an open state;
  • Figure 17 is a schematic structural diagram of the locking mechanism of the present invention, at this time the plug-in circuit breaker is in the closed state;
  • 18 is a schematic structural diagram of the locking mechanism of the present invention, at least showing the mating relationship between the second locking member driving portion of the second locking member and the second moving protrusion;
  • connection terminal of the present invention is a schematic diagram of the structure of the first embodiment of the connection terminal of the present invention.
  • FIG. 20 is another schematic diagram of the structure of the first embodiment of the connecting terminal of the present invention.
  • FIG. 21 is a third structural diagram of the first embodiment of the connection terminal of the present invention.
  • Fig. 22 is a schematic structural diagram of a second embodiment of a terminal according to the present invention.
  • FIG. 23 is another structural diagram of the second embodiment of the connection terminal of the present invention.
  • FIG. 24 is a third structural diagram of the second embodiment of the connection terminal of the present invention.
  • 25 is a schematic diagram of the assembly structure of the third embodiment of the connection terminal of the present invention.
  • Figure 26 is an exploded schematic view of the third embodiment of the terminal of the present invention.
  • FIG. 27 is a schematic structural diagram of a third embodiment of a terminal according to the present invention, at least showing the positional relationship and connection relationship of the terminal screw, the nut member, the crimping plate, and the crimping plate mounting shaft;
  • FIG. 28 is a schematic structural diagram of a nut member of a terminal block according to a third embodiment of the present invention.
  • FIG. 29 is a schematic diagram of the structure of the crimping plate of the terminal according to the third embodiment of the present invention.
  • Fig. 30 is another schematic diagram of the structure of the crimping plate of the terminal according to the third embodiment of the present invention.
  • plug-in circuit breaker of the present invention The specific implementation of the plug-in circuit breaker of the present invention will be further described below with reference to the embodiments given in FIGS. 1-30.
  • the plug-in circuit breaker of the present invention is not limited to the description of the following embodiments.
  • the plug-in circuit breaker of the present invention includes a circuit breaker housing and at least one protection pole, the circuit breaker housing includes at least one protection pole assembly cavity, and the protection pole assembly cavity and the protection pole are matched one to one; each of the protection poles Each includes an operating button 1d, an operating mechanism 3 drivingly connected to the operating button 1d, a protection mechanism 4 drivingly matched with the operating mechanism 3, an arc extinguishing system 5, a first wire-in terminal 110, and a An outlet terminal 11, a movable contact 61 connected to the operating mechanism 3, and a static contact 62 used in conjunction with the movable contact 61.
  • the plug-in circuit breaker of the present invention can be configured as a single-pole circuit breaker (that is, a circuit breaker with only one protective pole), or a two-pole circuit breaker with one protective pole, or with two A two-pole circuit breaker with protective poles, or a three-pole circuit breaker with three protective poles, or a four-pole circuit breaker with three protective poles, or a four-pole circuit breaker with four protective poles.
  • one end of the operation button 1d is inserted into the circuit breaker housing, the operation button 1d and the first outlet terminal 11 are arranged at one end of the circuit breaker housing, and the first inlet terminal 110 is arranged at The other end of the circuit breaker housing; the arc extinguishing system 5 is arranged in the middle of the protection pole assembly cavity and on the side of the first incoming terminal 110, the operating mechanism 3 is arranged between the operating button 1d and the arc extinguishing system 5, and the protection mechanism 4 It is arranged between the first outlet terminal 11 and the arc extinguishing system 5 and on the side of the operating mechanism 3.
  • the plug-in circuit breaker of the present invention has a more compact protection pole layout, significantly reduces the volume of the plug-in circuit breaker, is beneficial to save the internal space of the communication cabinet, and conforms to the development trend of miniaturization of the communication cabinet.
  • the protection mechanism 4 and the operating mechanism 3 are arranged side by side, the protection mechanism 4 occupies about 1/4 of the circuit breaker shell width, and the operating mechanism 3 occupies about the circuit breaker. 3/4 of the width of the casing of the circuit breaker; the arc extinguishing system 5 is arranged under the protection mechanism 4 and the operating mechanism 3, and occupies about 3/5 of the width of the circuit breaker casing.
  • the plug-in circuit breaker is in the closed state and the operating mechanism 3 is in the locked state.
  • the protection mechanism 4 drives the operating mechanism 3 to trip, and the plug-in circuit breaker Trip and the operating mechanism 3 enters the trip state (as shown in Figure 7), pull the operating button 1d to move it to the opening direction, drive the operating mechanism 3 to return to the locked state, and the plug-in circuit breaker enters the open state (such as Shown in Figure 5).
  • the operating mechanism 3 includes a U-shaped connecting rod 35, an operating handle 30, a contact support rod 31, a jumper 32, a lock catch 36, a catch return spring 37, and a main pull spring 33.
  • the operating handle 30 is pivotally arranged on the circuit breaker housing, one end of the operating handle 30 is drivingly connected to the operating button 1d through a U-shaped connecting rod 35, and the other end is connected to one end of the contact support rod 31 for rotation, the contact support rod 31
  • the other end is provided with a movable contact 61; one end of the jumper 32 is pivotally arranged on the circuit breaker housing, and the middle part is connected to the end of the contact support rod 31 provided with the movable contact 61 through the main tension spring 33; the lock
  • the middle part of the buckle 36 is rotatably arranged, one end is connected with the lock return spring 37, and the other end is locked with the other end of the jumper 32 and is drivingly matched with the protection mechanism 4. Further, one end of the lock buckle 36 is connected to
  • the plug-in circuit breaker is in the closed state, and when a short-circuit fault or overload fault occurs, the protection mechanism 4 drives the operating mechanism 3 to act, so that the plug-in circuit breaker enters the open state (as shown in Figure 9). (Shown), after troubleshooting, press the operating button 1d to move it in the closing direction, drive the operating mechanism 3 to act, and the plug-in circuit breaker enters the closing state.
  • the operating mechanism 3 includes a U-shaped connecting rod 35, an operating handle 30, a contact support rod 31, a jumper 32, a lock 36, a lock return spring 37, and a main The pull spring 33 and the tripping return spring 38;
  • the operating handle 30 is pivotally arranged on the circuit breaker housing, one end of the operating handle 30 is drivingly connected to the operating button 1d through a U-shaped connecting rod 35, and the other end is connected to the contact support rod 31
  • One end is rotatably connected, and the other end of the contact support rod 31 is provided with a movable contact 61;
  • one end of the jumper 32 is pivotally arranged on the circuit breaker housing, and the middle part is provided with a movable contact through the main tension spring 33 and the contact support rod 31
  • One end of the head 61 is connected;
  • the middle part of the lock 36 is rotatably arranged, one end is connected to the circuit breaker housing through the lock return spring 37, and the other end is driven and matched with the protection
  • the protection mechanism 4 includes a yoke 40 and a bimetal 42.
  • the yoke 40 is arranged on one side of the lock 36, and the bimetal 42 is arranged in the middle of the yoke 40 and located at the magnetic yoke.
  • one end of the bimetal 42 is fixedly arranged and electrically connected to the first outlet terminal 11, and the other end is drivingly matched with the lock 36 and electrically connected to the moving contact 61; the plug-in circuit breaker is in In the closed state, when a short circuit fault occurs, the latch 36 is attracted to swing in the direction of the magnetic yoke 40 to release the latch coordination with the trip 32; the plug-in circuit breaker is in the closed state, and when an overload fault occurs, the bimetal The piece 42 is bent to drive the lock catch 36 to swing in the direction where the yoke 40 is located, and the lock catch cooperation with the jumper 32 is released.
  • the protection mechanism 4 of the present invention has both short-circuit protection and overload protection functions, and has a simple and compact structure. While reliably completing the protection function, it can effectively reduce the required assembly space, which is beneficial to the miniaturization development trend of plug-in circuit breakers.
  • the plug-in circuit breaker of the present invention further includes at least two auxiliary signal terminals that are plugged and unplugged to an external circuit; the movable contact 61 is electrically connected to the first outlet terminal 11, statically The contact 62 is electrically connected to the first incoming terminal 110, each auxiliary signal terminal is electrically connected to the first outgoing terminal 11, and a signal processing element is connected in series between at least one auxiliary signal terminal and the first outgoing terminal 11. Further, the signal processing element includes at least one diode. Further, the plug-in circuit breaker of the present invention further includes a second incoming terminal 100 and a second outgoing terminal 10.
  • the second incoming terminal 100 and the first incoming terminal 110 are arranged side by side at one end of the circuit breaker housing, and the second The outlet terminal 10 and the first outlet terminal 11 are arranged side by side at the other end of the plug-in circuit breaker, and the two auxiliary signal terminals are arranged side by side between the first inlet terminal 110 and the second inlet terminal 100.
  • its auxiliary signal terminal uses moving/static contacts to generate auxiliary signals, which saves the space and cost of installing auxiliary contacts or similar accessories, facilitates the simplification of the structure of the circuit breaker, and conforms to the requirements of the plug-in circuit breaker. Miniaturization trend; and the auxiliary signal terminal output signal can be used to judge the opening/closing status of the plug-in circuit breaker, for example, to realize remote monitoring.
  • one end of the operation button 1d is inserted into the circuit breaker housing, which is the inner end of the button, and the other end of the operation button 1d protrudes outside the circuit breaker housing.
  • the operating button 1d includes an indicator slot provided in the middle part and an indicator hole 12d provided on the outer end of the button, the indicator hole 12d communicates with one end of the indicator slot;
  • the plug-in circuit breaker It also includes an indicator 7, one end is provided with a closing indicating surface 70 and an opening indicating surface 71 respectively matched with the indicating hole 12d; when the plug-in circuit breaker is in the opening state, the opening indicating surface 71 is opposite to the indicating hole 12d Set, press the operating button 1d to move it in the closing direction, and at the same time the indicator 7 moves in the indicator slot as a whole.
  • the closing indicator surface 70 is set opposite to the indicator hole 12d and pulled Pull the operating button 1d to move it in the opening direction, and meanwhile the indicator 7 moves as a whole in the indicator slot.
  • the opening indicator surface 71 is set opposite to the indicator hole 12d.
  • the moving direction of the operation button 1d is perpendicular to the moving direction of the indicator 7 in the indicator slot.
  • the operation button 1d further includes indicator slide grooves 100d respectively provided on a pair of side walls of the indicator slot, the extension direction of the indicator slide groove 100d and the operation button 1d
  • the moving direction of the indicator 7 is vertical; the indicator 7 also includes two indicator slides 72 respectively arranged on a pair of side surfaces thereof, and the indicator slide 72 is slidably arranged in the indicator slide 100d.
  • the indicator 7 also includes an indicator rail shaft 75 provided at the other end thereof; the circuit breaker housing is provided with indicator rail grooves, and indicator rail shafts 75 is slidably arranged in the indicator track groove.
  • the indicator track groove drives the indicator 7 through the indicator track shaft 75 to move in the indicator slot as a whole to make the closing indicator surface 70/min
  • the gate indicating surface 71 is arranged opposite to the indicating hole 12d.
  • the indicator 7 is inserted into the indicator slot provided in the operation button 1d, which occupies less space and is beneficial to the miniaturization design of the circuit breaker.
  • the closing indicator surface 70 of the indicator 7 The opening indicating surface 71 and the opening indicating surface 71 can be respectively arranged opposite to the indicating hole 12d. The user can visually observe through the indicating hole 12d and quickly judge the opening/closing state of the circuit breaker, and the indicating element moves in the indicating element slot as a whole.
  • the action of the indicating piece is more accurate and the error is small, so that the closing indicating surface or the opening indicating surface is completely filled with the indicating hole, avoiding the closing indication
  • the indicator surface and the opening indicator surface are displayed in the indicator hole at the same time, which causes the user to make a mistake in judgment, which is beneficial to improve the user’s electricity safety.
  • the indicator slide groove 100d cooperates with the indicator slide 72 to limit the movement path of the indicator 7 , To ensure the reliability of the indicated results.
  • the plug-in circuit breaker of the present invention includes a circuit breaker housing and at least one protection pole.
  • the circuit breaker housing includes at least one protection pole assembly cavity, and the protection pole assembly cavity is matched with the protection pole one-to-one; each of the protection poles is uniform.
  • It includes an operating button 1d, an operating mechanism 3 drivingly connected to the operating button 1d, a protection mechanism 4 drivingly matched with the operating mechanism 3, an arc extinguishing system 5, a first wire-in terminal 110, and a first Outlet terminal 11, movable contact 61 connected to operating mechanism 3, and static contact 62 used in conjunction with movable contact 61; one end of said operating button 1d is inserted into the circuit breaker housing, operating button 1d and first outlet terminal 11 is arranged at one end of the circuit breaker housing, and the first incoming terminal 110 is arranged at the other end of the circuit breaker housing; the arc extinguishing system 5 is arranged in the middle of the protective pole assembly cavity and is located on the side of the first incoming terminal 110, operating The mechanism 3 is arranged between the operation button 1 d and the arc extinguishing system 5, and the protection mechanism 4 is arranged between the first outlet terminal 11 and the arc extinguishing system 5 and is located on the side of the operating mechanism 3.
  • the plug-in circuit breaker of the present invention is a two-pole circuit breaker, including a protective pole and a neutral pole, the protective pole is L pole, and the neutral pole is N pole; the plug-in circuit breaker
  • the device also includes a circuit breaker housing composed of a front cover 1c, a base 1b, and a rear cover 1a.
  • the front cover 1c and the base 1b enclose a protective pole assembly cavity that matches the protective pole one-to-one, and the base 1b and the rear cover 1a encloses a neutral pole assembly cavity matched with the neutral pole;
  • the circuit breaker housing includes an upper side 101 and a lower side 102, a front side 105 and a rear side 106, and a left side 103 and a right side 104.
  • the lower end of the operation button 1d is inserted into the circuit breaker housing, the operation button 1d and the first outlet terminal 11 are arranged at the upper end of the circuit breaker housing, and the first inlet terminal 110 is arranged on the circuit breaker housing.
  • the arc extinguishing system 5 is arranged in the middle of the protection pole assembly cavity and on the upper side of the first incoming terminal 110, the operating mechanism 3 is arranged between the operation button 1d and the arc extinguishing system 5, and the protection mechanism 4 is arranged on the first outlet terminal Between 11 and the arc extinguishing system 5 and on the left side of the operating mechanism 3.
  • the neutral pole further includes a second incoming terminal 100 and a second outgoing terminal 10, and the second incoming terminal 100 and the first incoming terminal 110 are arranged side by side in the circuit breaker housing.
  • the second outgoing terminal 10 and the first outgoing terminal 11 are arranged side by side on the upper end of the circuit breaker housing, and the second incoming terminal 100 is electrically connected to the second outgoing terminal 10 through the second conductive plate 2a.
  • the first incoming terminal 110 and the second incoming terminal 100 are respectively arranged on the right and left of the lower end of the circuit breaker housing; the first outgoing terminal 11 and the second The outlet terminals 10 are all arranged on the left side of the operation button 1d.
  • the first incoming terminal 110 and the second incoming terminal 100 each include a first elastic element 2c, and each first elastic element 2c includes a first spring connecting plate and Two oppositely arranged first reed clamping plates, the two first reed clamping plates are respectively connected to the two ends of the first reed connecting plate by bending, and each first reed clamping plate is " ⁇ ”Structure, the two first reed clamping plates are integrated into an X-shaped structure.
  • the operating mechanism 3 of the first embodiment includes a U-shaped link 35, an operating handle 30, a contact support rod 31, a jumper 32, a lock 36, a lock return spring 37, and a main tension spring 33; the operating handle 30 pivots It is mounted on the circuit breaker housing.
  • One end of the operating handle 30 is connected to the operating button 1d through a U-shaped connecting rod 35, and the other end is rotatably connected to one end of the contact support rod 31.
  • the other end of the contact support rod 31 is provided with a movable contact.
  • one end of the trip buckle 32 is pivotally arranged on the circuit breaker housing, the middle part is connected to the end of the contact support rod 31 with a movable contact 61 through the main tension spring 33; the middle part of the lock buckle 36 is rotatably arranged, one end It is connected with the lock return spring 37, and the other end is drivingly matched with the protection mechanism 4 and locked with the other end of the jumper 32.
  • one end of the return spring 37 is connected to one end of the lock buckle 36, and the other end is connected to the circuit breaker housing.
  • the return spring 37 may be a torsion spring or a straight cylindrical spring.
  • the jumper 32 has a U-shaped structure (see FIG. 6), and includes a jumper first arm 32a and a jumper second arm 32b that are arranged oppositely.
  • the jumper 32 has a U-shape The bottom of the structure is set close to the end where the operating handle 30 is connected to the contact support rod 31, one end of the jumper first arm 32a is pivoted, and the other end is connected to one end of the jumper second arm 32b, and the other end of the jumper second arm 32b is connected to the other end of the jumper second arm 32b.
  • the lock 36 locks to match.
  • the contact support rod 31 has an overall arc-shaped structure, one end is provided with a support rod shaft 311 rotatably connected with the operating handle 30, and the other end is provided with a movable contact 61 (see Fig. 5 ), the movable contact 61 includes a movable contact plate 610 connected to the contact support rod 31 and a movable contact 611 provided at one end of the movable contact 610, and the other end of the movable contact plate 610 is connected to the main tension spring 33. Further, an arc isolation plate 34 is also provided in the middle of the contact support rod 31 (see FIG. 3).
  • the arc isolation plate 34 When the plug-in circuit breaker is in the open state, the arc isolation plate 34 enters between the movable contact 61 and the static contact 62, In the closed state, the arc shield 34 moves out between the movable contact 61 and the static contact 62.
  • the contact support 3 further includes a linkage member 44.
  • the linkage member 44 includes a linkage rod 440 and a linkage shaft 441 provided at one end of the linkage rod 440. Both ends of the linkage shaft 440 pivot respectively.
  • the middle of the linkage shaft 440 is provided with a polygonal hole 4410 along its axial direction, and the linkage rod 440 is provided with a linkage receiving platform 442 on the side opposite to the jumper 32;
  • the jumper second arm 32b is provided with a linkage driving table 322 that is in cooperation with the linkage receiving table 442;
  • the plug-in circuit breaker includes a plurality of protection poles, the linkage shafts 441 of the plurality of protection poles are connected by the linkage connecting shaft, and the linkage is connected The shafts are respectively matched with the polygonal holes 4410 of the linkage members 44.
  • the linkage driving table 322 of the trip buckle 32 of the protective pole drives the linkage rod 440 to swing through the linkage receiving table 442, and the linkage rod 440
  • the linkage shaft 441 is driven to rotate.
  • the linkage shaft 441 drives the linkage rods 440 of other protection poles to swing through the linkage connecting shaft, and knocks the locks 36 of each protection pole respectively to make each protection pole synchronously trip.
  • the linkage 44 of each protection pole may be connected by a linkage connection shaft, or two adjacent protection poles may be connected by a linkage connection shaft.
  • the jumper 32 and the contact support rod 31 are all arranged below the operating handle 30.
  • the upper end of the operating handle 30 is drivingly connected to the operating button 1d through a U-shaped connecting rod 35, and the middle part is
  • the lower end is pivotally arranged on the circuit breaker housing, and the lower end is rotatably connected with the support rod shaft 311 at the upper end of the contact support rod 31;
  • the jumper 32 is a U-shaped structure with its opening facing downward and includes The tripping second arm 32b and the tripping first arm 32a, the lower end of the tripping first arm 32a is pivotally arranged on the circuit breaker housing, the upper end is connected with the upper end of the tripping second arm 32b, and the lower end of the tripping second arm 32b is connected to the lower end of the tripping second arm 32b.
  • the lock buckle 36 is buckled, and the middle of the jumper 32 is connected to the upper end of the movable contact plate 610 of the contact support rod 31 through the main tension spring 33; the upper end of the contact support rod 31 is superimposed on the front side of the middle of the jumper 32, and the lower end is provided There is a movable contact 61.
  • the movable contact 61 includes a movable contact plate 610.
  • a movable contact 611 is provided on the right side of the lower end of the movable contact 610, and the upper end is connected to the lower end of the main tension spring 33; the left end of the arc shield 34 is supported by the contact
  • the lower end of the rod 31 is connected by rotation, and the right end is matched with the movable contact 61 and the static contact 62. It extends between the movable contact 61 and the static contact 62 when the switch is opened, and moves out of the moving contact 61 and the static contact 62 when the switch is closed.
  • the contact support rod 31 is provided with a support rod-arc plate limiting slot, and the contact support rod 31 drives the movable contact 61 and the static contact 62 to open and close, the support rod-
  • the arc partition limit slot drives the arc partition 34 to extend into and out of the moving and static contacts and limit the swing amplitude of the right end of the arc partition 34; the lock 36 is arranged on the left side of the jumper 32, and the middle part is pivoted.
  • the upper end is connected to the circuit breaker housing through the lock return spring 37, and the lower end is locked with the lower end of the second arm 32b of the jumper 32; the linkage 44 is arranged between the lock 36 and the jumper 32, and the linkage
  • the upper end of the rod 440 is pivoted by the linkage shaft 441.
  • the middle part of the linkage rod 440 is located on the right side below the linkage shaft 441 with a linkage receiving platform 442.
  • the upper left side of the jumper second arm 32b is provided with a linkage receiving platform 442.
  • the matched linkage drives the platform 322.
  • the operating handle 30 is pivoted on the circuit breaker housing via the operating handle mounting shaft 14.
  • the operating handle 30 also includes an operating handle-connecting rod hole that is matched with the U-shaped connecting rod 35, and an operating handle-supporting that is matched with the support rod shaft 311 of the contact support rod 31
  • the rod hole, and the operating handle shaft hole matched with the operating handle mounting shaft 14; the operating handle 30 is approximately a triangle, and the operating handle-connecting rod hole, the operating handle shaft hole and the operating handle-supporting rod hole are respectively arranged in one At the three vertices of the triangle.
  • the lower end of the jumper first arm 32a of the jumper 32 is pivoted on the circuit breaker housing via the jumper mounting shaft 15. Further, both ends of the jumper mounting shaft 15 are pivotally connected to the front cover 1c and the base 1b, respectively.
  • the middle of the jumper 32 is provided with a jumper-spring connection hole 320 connected to one end of the main tension spring 33, and the upper end of the movable contact plate 610 is provided with a movable contact plate-spring connection hole 310 .
  • the lower end of the jumper second arm 32b has a wedge-shaped structure, and the lower end of the lock 36 is provided with a lock hole 363 that is engaged with the lower end of the jumper second arm 32b.
  • the operating mechanism 3 of the second embodiment differs from the first embodiment in that it also includes a tripping reset spring 38.
  • One end of the tripping reset spring 38 is connected to the circuit breaker housing, and the other end is connected to the tripping buckle 32;
  • the protection mechanism 4 drives the lock 36 and the trip 32 to release the lock coordination, the plug-in circuit breaker trips, and the trip reset spring 38 drives the trip 32 to rotate to make the trip
  • the buckle 32 and the buckle 36 are re-locked and matched, and the plug-in circuit breaker enters the open state.
  • the jumper return spring 38 is a torsion spring, which is sleeved on the jumper return spring shaft 380 located on the side of the first arm 32a of the jumper, and both ends of the jumper return spring shaft 380 are respectively fixed on the circuit breaker housing.
  • the middle of the first arm 32a of the trip is provided with a trip reset boss 323, one end of the trip reset spring 38 is connected to the circuit breaker housing, and the other end is connected to the trip 32.
  • the protection mechanism 4 includes a magnetic yoke 40 and a bimetal plate 42.
  • the magnetic yoke 40 is arranged on one side of the lock buckle 36.
  • the bimetal plate 42 is arranged in the middle of the yoke 40 and is located between the yoke 40 and the lock buckle 36.
  • One end of the piece 42 is fixedly arranged and electrically connected to the first outlet terminal 11, and the other end is drivingly matched with the lock buckle 36 and electrically connected to the movable contact 61; the plug-in circuit breaker is in the closed state, and when a short-circuit fault occurs, the lock buckle 36 is attracted and swings in the direction where the yoke 40 is located, and releases the lock cooperation with the trip buckle 36; the plug-in circuit breaker is in the closed state, and when an overload fault occurs, the bimetal 42 drives the lock buckle 36 toward the yoke 40. Swing in the direction to release the lock coordination with the jumper 32.
  • the yoke 40 is arranged on the left side of the lock 36, the bimetal 42 is arranged in the middle of the yoke 40 and located between the yoke 40 and the lock 36, and the lock 36
  • the upper end is fixed and the middle part is rotated.
  • the lower end is opposite to the magnetic yoke 40. It is driven and matched with the bimetal 42 and is locked with the tripper 32; the plug-in circuit breaker is in the closed state, and when a short-circuit fault occurs, the bimetal
  • the short-circuit current flows in the sheet 42 and the generated magnetic field is strengthened by the yoke 40.
  • the lower end of the lock 36 is attracted and swings in the direction of the magnetic yoke 40 to release the lock cooperation with the trip 32; the plug-in circuit breaker is in the closed state,
  • the bimetal 42 heats up and bends to the left, driving the lower end of the lock 36 to swing in the direction where the yoke 40 is located, and releases the lock cooperation with the jumper 32.
  • the middle part of the lock catch 36 is rotatably arranged on one end of the magnetic yoke 40, one end of the lock catch 36 is connected to the circuit breaker housing through the lock return spring 37, and the other end is opposite to the magnetic yoke 40 Setting; one end of the bimetal 42 fixedly arranged is electrically connected to the first outlet terminal 11 through the first conductive plate 2b (see FIG. 3), and the other end is electrically connected to the contact support rod 31 through the soft connection 63, the static contact 62 is electrically connected to the first incoming terminal 110.
  • the protection mechanism 4 also includes an adjusting screw, which is in position-limiting fit with the circuit breaker housing, and one end of the first conductive plate 2b is threadedly fitted with the end of the first conductive plate 2b connected to the bimetal 42 to adjust the bimetal 42 Position to adjust the trip threshold or parameters of the bimetal 42.
  • the middle part of the lock buckle 36 is rotatably arranged on the upper end of the yoke 40, the upper end of the lock buckle 36 is connected to the circuit breaker housing through the lock return spring 37, and the lower end is arranged opposite to the yoke 40.
  • the upper end of the bimetal 42 is electrically connected to the first outlet terminal 11 through the first conductive plate 2b, the lower end is electrically connected to the contact support rod 31 through the soft connection 63, and the static contact 62 is electrically connected to the first inlet terminal 110.
  • the first conductive plate 2b is electrically connected to the contact support rod 31 through a second flexible connection, and a circuit from the second conductive plate 2b to the contact support rod is added, so that the current specification is large ampere rating.
  • the current flowing in the bimetal is reduced, and the failure of the bimetal due to heat due to excessive current is avoided.
  • the cross section of the yoke 40 is a singular structure, and one end of the yoke 40 is provided with two yoke support arms 400 (see Fig. 6) arranged opposite to each other, and the yoke support
  • the arm 400 is provided with a yoke limit slot 401;
  • the lock 36 includes a lock reset end 360, a lock support arm 361, a lock main body 362, a lock hole 363 and a lock receiving end 364 (see Figure 5 ), the lock reset end 360, the lock main body 362 and the lock receiving end 364 are connected in sequence.
  • the lock reset end 360 and the lock main body 362 are provided with a lock support arm 361 on both sides of the joint.
  • the movable end 364 has an L-shaped structure. One end is bent and connected to the lock body 362, and the other end is drivingly matched with the bimetal 42.
  • the two lock support arms 361 are respectively arranged in the two magnetic yoke limit grooves 401, and the lock
  • the main body 362 is arranged opposite to the magnetic yoke 400, and the lock hole 363 is arranged on the lock main body 362 to lock with the jumper 32.
  • the upper end of the yoke 40 is provided with two yoke support arms 400 opposite to each other, and the yoke support arm 400 is provided with a yoke limit slot 401; the lock catch
  • the upper end of the main body 362 is bent and connected to the lock reset end 360, and the lower end is bent and connected to the lock receiving end 364.
  • the lock reset end 360 is bent to the right, and the lock receiving end 364 is bent to the left.
  • a locking hole 363 is provided in the middle of the main body 362 to be matched with the magnetic yoke 40.
  • the arc extinguishing system 5 includes an arc extinguishing chamber 50 and a moving contact arc striking plate 51 and a static contact arc striking plate 52 respectively arranged on both sides of the arc extinguishing chamber 50; the moving contact arc striking plate 51 and the moving contact arc striking plate 51
  • the head 61 cooperates and is electrically connected to the first outlet terminal 11, one end of the static contact arc pilot plate 52 is provided with a static contact 62, and the other end is electrically connected to the first inlet terminal 110.
  • the movable contact arc striking plate 51 and the static contact arc striking plate 52 are respectively arranged on the left and right sides of the arc extinguishing chamber 50, and the upper end of the movable contact arc striking plate 51 is connected to the movable contact arc striking plate 51.
  • the contacts 61 are matched, and the movable contact arc-igniting plate 51 is electrically connected with the first outlet terminal 11, the static contact arc-igniting plate 52 is provided with a static contact 62 at the upper end, and the lower end is electrically connected with the first inlet terminal 110, and the movable contact
  • the upper end of the head arc-igniting plate 51 and the upper end of the static contact arc-igniting plate 52 are bent toward each other.
  • the plug-in circuit breaker of the present invention also includes at least two auxiliary signal terminals that are plugged in and connected to an external circuit.
  • Each auxiliary signal terminal is electrically connected to the first outlet terminal 11, and at least one auxiliary signal A signal processing element is connected in series between the terminal and the first outlet terminal 11.
  • the signal processing element includes at least one diode.
  • a signal processing element is serially connected between each of the auxiliary signal terminals and the first outlet terminal 11; or, a signal processing element is serially connected between one of the auxiliary signal terminals and the first outlet terminal 11, and the other No signal processing element is provided between an auxiliary line number terminal and the first outlet terminal 11.
  • the plug-in circuit breaker of the present invention preferably adopts the latter method, so that the plug-in circuit breaker can output a DC signal through one auxiliary signal terminal, and the other
  • the auxiliary signal terminal outputs AC signals, which makes the plug-in circuit breaker more adaptable and can meet the needs of different application environments.
  • the signal processing element is not limited to diodes, but can also be other components that can convert AC signals into DC signals; of course, the signal processing elements can also simply add functions according to user needs.
  • the plug-in circuit breaker of the present invention includes two auxiliary signal terminals that are plugged and unplugged to an external circuit, namely a first auxiliary signal terminal 12 and a second auxiliary signal terminal 13, each The auxiliary signal terminals are electrically connected to the first outlet terminal 11 through the movable contact arc-igniting plate 51, and a diode is connected in series between the second auxiliary signal terminal 13 and the movable-contact arc-igniting plate 51. Further, as shown in the direction shown in FIGS.
  • the first incoming line terminal 110, the second incoming line terminal 100, the first auxiliary signal terminal 12 and the second auxiliary signal terminal 13 are all arranged at the lower end of the plug-in circuit breaker ,
  • the first auxiliary signal terminal 12 and the second auxiliary signal terminal 13 are arranged side by side between the first incoming terminal 110 and the second incoming terminal 100.
  • the auxiliary signal terminal can be connected to a circuit structure such as an external control circuit board, for example, to realize remote monitoring.
  • each of the auxiliary signal terminals includes a second elastic element 2d
  • each second elastic element 2d includes a second reed connecting plate and two oppositely disposed second elastic elements.
  • Reed clamping plate, two second reed clamping plates are respectively bent and connected to both ends of the second reed connecting plate, each second reed clamping plate has a " ⁇ " structure, two two springs
  • the sheet clamping plate is an X-shaped structure as a whole.
  • the plug-in circuit breaker of the present invention further includes an exhaust port 16, a first exhaust channel is also provided in the protective pole assembly cavity, and one end of the first exhaust channel is connected to the arc extinguishing system 5
  • the air outlet of the arc chamber 50 is communicated, and the other end is communicated with the external environment through the air outlet 16.
  • the exhaust port 16 is arranged on the lower end surface of the circuit breaker housing, between the second auxiliary signal terminal 13 and the first incoming terminal 110.
  • one end of the operation button 1d is inserted into the circuit breaker housing, which is the inner end of the button, and the other end of the operation button 1d protrudes outside the circuit breaker housing.
  • the operating button 1d includes an indicator slot provided in the middle part and an indicator hole 12d provided on the outer end of the button, the indicator hole 12d communicates with one end of the indicator slot;
  • the plug-in circuit breaker It also includes an indicator 7 slidably inserted in the indicator slot.
  • One end of the indicator 7 is provided with a closing indicating surface 70 and an opening indicating surface 71 respectively matched with the indicating hole 12d; the plug-in circuit breaker is in the opening In the state, the opening indicating surface 71 is set opposite to the indicating hole 12d, pressing the operating mechanism 1d to move it in the closing direction, and the indicating element 7 moves in the indicating element slot as a whole. After the plug-in circuit breaker enters the closing state, The closing indicating surface 70 is arranged opposite to the indicating hole 12d. Pull the operating button 1d to move it toward the opening direction, and the indicating element 7 moves as a whole in the indicating element slot. After the plug-in circuit breaker enters the opening state, it opens The indicating surface 71 is arranged opposite to the indicating hole 12d.
  • the moving direction of the operation button 1d is perpendicular to the moving direction of the indicator 7 in the indicator slot.
  • the operation button 1d further includes indicator slide grooves 100d respectively provided on a pair of side walls of the indicator slot, the extension direction of the indicator slide groove 100d and the operation button 1d
  • the direction of movement of the indicator is vertical; as shown in Figure 12, the indicator 7 further includes two indicator slides 72 respectively arranged on a pair of side surfaces thereof, and the indicator slide 72 is slidably arranged in the indicator slide groove 100d, The movement path of the indicator 7 in the indicator slot 100d is restricted.
  • the indicator 7 further includes an indicator track shaft 75 provided at the other end thereof; as shown in Figure 10, the circuit breaker housing is provided with indicator track grooves, The indicator track shaft 75 is slidably arranged in the indicator track groove, press/pull the operation button 1d, the indicator track groove drives the indicator 7 through the indicator track shaft 75 to move in the indicator slot as a whole to make the closing indicator surface
  • the 70/opening indicating surface 71 is arranged opposite to the indicating hole 12d, and the indicating member track groove is an inclined track groove, which can be arranged in a straight line inclined or an arc inclined arrangement.
  • an inclined driving surface can also be provided on the indicator 7, and a driving protrusion is provided on the circuit breaker housing.
  • the indicator 7 When the operation button 1d is pressed/pulled, it moves horizontally with respect to the operation button 1d.
  • the indicator track groove is an inclined track groove, which is formed by the relative cooperation of two inclined half grooves on the circuit breaker housing that are arranged oppositely; the plug-in circuit breaker is in an open state
  • the indicator track shaft 75 is located at one end of the indicator track groove, which is the first end of the track groove
  • the plug-in circuit breaker is in the closed state
  • the indicator track shaft 75 is located at the other end of the indicator track groove, which is the first end of the track groove.
  • the first end of the track groove is closer to the button outer end of the operation button 1d than the second end of the track groove.
  • the closing indicating surface 70 and the opening indicating surface 71 can be in different colors, for example, the closing indicating surface is green and the opening indicating surface is red; or, the closing indicating surface 70 and the opening indicating surface are red.
  • the gate indicating surface 71 has different characters or symbols, for example, the closing indicating surface 70 has the words "close” or the symbol "
  • the implementation form of the latter is not limited to the above two, as long as the closing indicating surface 70 and the opening indicating surface 71 can be effectively distinguished, so as to correctly indicate the closing and opening states of the plug-in circuit breaker.
  • the upper end of the operation button 1d is the outer end of the button, and the lower end is the inner end of the button.
  • the end surface of the outer end of the button is provided with an indicator hole 12d, which is connected to the upper end of the indicator slot.
  • the closing indicating surface 70 and the opening indicating surface 71 are arranged side by side on the upper end of the indicator 7, the two indicator slides 72 are arranged on both sides of the middle of the indicator 7, and the indicator track shaft 75 is arranged on the indicator 7The lower end.
  • the indicator track groove is formed by two inclined half grooves, one inclined half groove is arranged on the back cover 1a, which is the first half groove 10a, and the other inclined half groove is arranged on the base.
  • the indicator track shaft 75 is located on the track At the first end of the slot, when the plug-in circuit breaker is closed, the indicator track shaft 75 is located at the second end of the track slot; as shown in Figure 10, when the plug-in circuit breaker is in the open state, when the operating button 1d is pressed (Even if the operation button 1d moves in the closing direction), since the operation button 1d moves linearly and the indicator track groove is inclined from upper right to lower left, the indicator track groove will drive the indicator through the indicator track shaft 75 7 occurs lateral movement (that is, the overall movement of the indicator 7 in the indicator slot), which realizes the switch from the opening indicating surface 71 and the indicating hole 12d opposite to the setting to the closing indicating surface 70 and the indicating hole 12d opposite to the setting; When the plug-in circuit breaker is in the closed
  • the plug-in circuit breaker of the present invention further includes a locking mechanism.
  • the locking mechanism includes a second locking member 8 pivotally arranged in the middle, and the second locking member 8 includes locking members respectively provided at both ends thereof.
  • the upper end and the lower end of the locking member are provided with a second protrusion 82 at the lower end of the locking member; when the plug-in circuit breaker is in the closed state, the operating button 1d drives the second locking member 8 to rotate through the lower end of the locking member to make the second protrusion 82 When the plug-in circuit breaker is in the open state, the operating button 1d drives the second locking member 8 to rotate through the upper end of the locking member, so that the second protrusion 82 is moved into the circuit breaker casing.
  • the indicator 7 further includes an indicator horizontal arm 74 provided at one end thereof; the second locking member 8 also includes a second locking member provided at the upper end of the locking member
  • the receiving portion 81 and the operating button 1d are driven to cooperate with the receiving portion 81 of the second locking member through the indicator horizontal arm 74 to drive the second locking member 8 to rotate, so that the second protrusion 82 is moved into the circuit breaker housing.
  • the second locking member 8 further includes a second locking member receiving protrusion 83 provided at the lower end of the locking member, and the second locking member receiving protrusion 83 is connected to the second locking member.
  • the protrusion 82 protrudes in the opposite direction; when the plug-in circuit breaker is in the closed state, the indicator horizontal arm 74 is located on one side of the second locking member actuated protrusion 83 and cooperates with its limit to make the second protrusion 82 remains protruding outside the circuit breaker housing.
  • the indicator horizontal arm 74 is arranged at the lower end of the indicator 7 connected to it at a right angle and protrudes to the left, and the second locking member actuated portion 81 is arranged at the upper end of the second locking member 8 and at a right angle to it. Connected and protruding to the right, the second protrusion 82 (in FIG.
  • the second protrusion 82 is blocked by the first locking member 9) and the second locking member actuated protrusion 83 are both arranged at the lower end of the second locking member 8, Protruding to the left and right sides of the second locking member 8 respectively, the indicator horizontal arm 74 is located on the lower side of the second locking member actuated portion 81 to drive and cooperate with it.
  • the operating button 1d drives the second locking member 8 to rotate counterclockwise through the cooperation of the indicator horizontal arm 74 and the second locking member receiving portion 81, then The second protrusion 82 moves into the circuit breaker housing; as shown in the direction shown in Figure 17, when the plug-in circuit breaker is in the closed state, the operating button 1d moves down, and the horizontal arm 74 of the indicator presses the second locking member to be moved.
  • the protrusion 83 makes the second locking member 8 rotate counterclockwise, and the second protrusion 82 protrudes from the outside of the circuit breaker housing. Because the indicator horizontal arm 74 is located on the left side of the activated protrusion 83 of the second locking member and is limited in position The mating keeps the second protrusion 82 protruding outside the circuit breaker housing.
  • the indicator horizontal arm 74 of the indicator 7 keeps the second protrusion 82 of the second locking member 8 protruding outside the circuit breaker housing, so as to prevent the circuit breaker from being closed. Installation in the gate state will cause electric shock to occur, which is conducive to improving the electricity safety of users.
  • the driving of the second locking member 8 is not limited to the method of driving the horizontal arm 74 of the indicator member, but can also be provided at the lower end of the operating button 1d with a structure similar to the horizontal arm 74 of the indicator member for driving the second locking member 8 Two locking pieces 8.
  • the locking mechanism further includes a first locking member 9.
  • One end of the first locking member 9 is slidably arranged in the circuit breaker housing, and the other end is protruding from The first protrusion 90 on the outside of the circuit breaker housing; when the plug-in circuit breaker is assembled to the cavity-type circuit breaker assembly position, the housing of the circuit breaker assembly position squeezes the first protrusion 90 to make the first locking member 9 The whole moves to the inside of the circuit breaker housing. After the plug-in circuit breaker is assembled in place, the first protrusion 90 protrudes outside the circuit breaker housing to fit with the housing limit of the circuit breaker assembly position.
  • the first locking member 9 cooperates with the shell limit of the circuit breaker assembly position to ensure the plug-in circuit breaker The reliability of the device assembly, and avoids the plug-in circuit breaker from being pulled out by mistake in the closed state, and improves the safety of electricity use.
  • the lower end of the second locking member 8 is drivingly engaged with the first locking member 9; when the plug-in circuit breaker is in the open state, the operating button 1d is pulled to operate The button 1d drives the first locking member 9 to move toward the inside of the circuit breaker housing through the second locking member 8, so that the first protrusion 90 releases the limit fit of the housing of the circuit breaker assembly position.
  • the first sliding end 90a further includes a first movable protrusion 91 and a second movable protrusion 94; the second locking member 8 also includes a first pivoted central part.
  • Two locking member bodies 84, the second locking member actuated portion 81 of the second locking member 8 is bent and connected to one end of the second locking member body 84, and the other end of the second locking member body 84 is provided with a second protrusion 82 and this end
  • the second locking member moving portion 81 and the second protrusion 82 respectively protrude to both sides of the second locking member main body 84, and the second protrusion 82 and the first moving protrusion 91 Drive coordination.
  • first locking member 9 can omit the first driven protrusion 91 or the second driven protrusion 94, leaving either of the two to cooperate with the second locking member 8. Of course, this improvement will The stability and reliability of the action of the first locking member 9 are reduced.
  • the first locking member 9 further includes a first sliding end 90a slidably arranged in the circuit breaker housing, one side of the first sliding end 90a is connected to the first protrusion 90, and the other One side is connected to the circuit breaker housing through the first locking piece return spring 9a, and the first locking piece return spring 9a provides a force to the first locking piece 9 to keep the first protrusion 90 protruding outside the circuit breaker housing.
  • the upper end of the second locking member driving portion 84 and the second locking member receiving portion 81 are bent and connected (connected at right angles or approximately right angles), and the second protrusion 82 is arranged at At one side edge of the lower end of the second locking member main body 84, the lower end of the second locking member driving portion 84 and the second protrusion 82 are respectively arranged on the right side of the second actuated protrusion 94 and the first actuated protrusion 91; as shown in the figure.
  • the plug-in circuit breaker is in the open state, the operating button 1d is pulled upwards, and the operating button 1d drives the second through the cooperation of the indicator horizontal arm 74 of the indicator 7 and the second lock member 81.
  • the locking member 8 rotates clockwise, the lower end of the second locking member driving portion 84 passes through the second moving protrusion 94, and the second protrusion 82 passes through the first moving protrusion 91 to drive the first locking member 9 to move to the left (toward Move inside the circuit breaker casing), so that the first protrusion 90 of the first locking member 9 is released from the limit matching with the casing of the circuit breaker assembly position.
  • the circuit breaker housing is provided with a first opening 11 a that cooperates with the first protrusion 90 and the second protrusion 82.
  • the first opening 11a is provided on the right side of the circuit breaker housing, and the first protrusion 90 and the second protrusion 82 respectively protrude from the circuit breaker housing through the first opening 11a. external.
  • the locking mechanism includes a first locking member 9, a second locking member 8 and an indicator 7; one end of the indicator 7 is inserted into the operating button 1d, and the other end is connected to the second locking member. 8 is driven to cooperate, the middle part of the second locking member 8 is pivotally arranged, and one end is driven to cooperate with the first locking member 9.
  • the first locking member 9 includes a first protrusion 90 and a first sliding end 90a respectively provided at two ends thereof, and one side of the first sliding end 90a is connected to the first sliding end 90a.
  • the protrusion 90 is connected, and the other side is connected with the circuit breaker housing through the first locking piece return spring 9a. Further, as shown in FIG.
  • the first sliding end 90a includes a locking member spring limiting groove 92 provided on one side thereof, and the locking member spring limiting groove 92 is also provided with a locking member spring limiting protrusion in the middle thereof, One end of the first locking member return spring 9a is inserted into the locking member spring limiting groove 92 and sleeved on the locking member spring limiting protrusion. Further, as shown in FIG. 15, one end of the first sliding end 90a is provided with a first track groove 93, which cooperates with the first sliding track on the circuit breaker housing to define the sliding path of the first sliding end 90a. Further, as shown in FIG.
  • the first sliding end 90a further includes a first movable protrusion 91 and a second movable protrusion 94, and the first movable protrusion 91 and the first track groove 93 are respectively arranged in At both ends of the first sliding end 90a, the second movable protrusion 94 is disposed on the upper side of the first sliding end 90a and is located between the first locking protrusion 91 and the first rail groove 93.
  • the second locking member 8 includes a second locking member receiving portion 81, a second locking member main body 84, a second locking member receiving protrusion 83, and a second locking member receiving portion 81.
  • the moving portion 81 and the second locking element receiving protrusion 83 protrude on the same side of the second locking element main body 84.
  • the second locking member 8 includes an upper end of a locking member and a lower end of the locking member respectively provided at the upper and lower ends thereof, the second locking member actuated portion 81 and the second locking member main body 84 Bending and connecting (connecting at right angles or approximately at right angles) to form the upper end of the locking member, the second protrusion 82 and the second locking member moving protrusion 83 are both arranged at the lower end of the second locking member body 84, the second protrusion 82 and the first
  • the lower end of the two locking member main bodies 84 constitutes the lower end of the locking member;
  • the middle of the second locking member main body 84 is provided with a second locking member mounting shaft 80, and both ends of the second locking member mounting shaft 80 are pivotally connected to the circuit breaker housing;
  • the lower end of the second locking member main body 84 is drivingly engaged with the second moving protrusion 94, and the second locking member moving protrusion 83 is provided at a side edge of the lower end of the second locking member
  • the second locking member movable protrusion 83 is provided at the left edge of the lower end of the second locking member body 84), the second protrusion 82 protrudes below the lower end of the second locking member body 84 and is connected to the second locking member movable protrusion 83 are connected (in the direction shown in FIG. 10, the second locking member actuated portion 81 and the second locking member main body 84 are integrated into an L-shaped structure, and the second locking member actuated protrusion 83 and the second protrusion 82 are integrated
  • the plate structure is located on the left side of the above-mentioned L-shaped structure as a whole.
  • the upper end is the second locking member receiving protrusion 83, which is connected to the lower end of the second locking member main body 84, and the lower end is the second protrusion 82 protruding from the second locking member main body.
  • the second locking member actuated portion 81 and the second protrusion 82 respectively protrude to both sides of the second locking member main body 84
  • the second locking member actuated portion 81 and the second locking member actuated protrusion 83 protrudes to the same side of the second locking member main body 84
  • the second protrusion 82 is drivingly engaged with the first moving protrusion 91.
  • the indicator 7 includes an indicator body 7-0, an indicator horizontal arm 74, an indicator rail shaft 75, an indicator slide 72, and a closing indicator surface 70 and the opening indicator surface 71;
  • the indicator horizontal arm 71 is set at one end of the indicator main body 7-0 and is connected to the indicator main body 7-0 by bending, the closing indicator surface 70 and the opening indicator surface 71 are arranged side by side
  • two indicator slides 72 are respectively arranged in the middle of both sides of the indicator body 7-0.
  • the indicator 7 further includes an indicator vertical arm 73.
  • the indicator vertical arm 73 and the indicator horizontal arm 74 are arranged at the same end of the indicator body 70, and the two are integrally L-shaped. Structure, the indicator vertical arm 73 is beneficial to improve the structural strength of the indicator horizontal arm 74.
  • the closing indicating surface 70 and the opening indicating surface 71 are arranged side by side on the upper end surface of the indicator body 7-0, the indicator track shaft 75, the indicator horizontal arm 71,
  • the indicator vertical wall 73 is arranged at the lower end of the indicator main body 7-0, the indicator horizontal arm 71 and the indicator vertical wall 73 are arranged on the same side of the indicator main body 7-0, and the whole is formed into an L-shaped structure, and the indicator track shaft 75 is arranged on the other side of the indicator body 7-0, and two indicator slides 72 are arranged on both sides of the middle of the indicator body 7-0, and both are located between the opening indicator surface 71 and the indicator horizontal arm 71.
  • the circuit breaker housing is provided with indicator track grooves that cooperate with indicator track shaft 75.
  • the indicator track grooves are arranged obliquely, and the indicator track grooves are inclined track grooves with the upper right end toward the lower left end. tilt.
  • the indicator track groove includes a first vertical groove, an inclined groove, and a second vertical groove. The lower end of the first vertical groove is connected to the upper right end of the inclined groove, and the upper end of the second vertical groove It is connected with the lower left end of the inclined groove, and the lower end of the first vertical groove is higher than the upper end of the second vertical groove.
  • the indicator track groove is composed of two inclined half grooves that cooperate with each other. Specifically, one inclined half groove is arranged on the back cover 1a, and the other inclined half groove is arranged on the base 1b. .
  • the operation button 1d includes a button body 10d and a button cap provided at one end of the button body 10d, the middle of the button cap is provided with an indicator hole 12d, and the other end of the button body 10d is provided with an indicator slot , There is an indicator slide groove 100d on each side wall of the indicator slot.
  • the operation button 1d further includes a button connection platform 11d, and the button connection platform 11d is rotatably connected to one end of the U-shaped link 35.
  • the plug-in circuit breaker is in the open state, and the operating button 1d is matched by the indicator horizontal arm 74 of the indicator 7 and the second locking member 81 of the second locking member 8 to drive the second
  • the locking member 8 rotates clockwise, and the second protrusion 82 of the second locking member 8 moves into the circuit breaker housing.
  • the plug-in circuit breaker can be installed in the circuit breaker assembly position (such as a cabinet);
  • the plug-in circuit breaker is in the open state, continue to pull the operating button 1d.
  • the operating button 1d is received by the indicator horizontal arm 74 of the indicator 7 and the second locking member of the second locking member 8.
  • the cooperation of the moving part 81 drives the second locking member 8 to continue to rotate clockwise.
  • the lower end of the second locking member body 84 and the second protrusion 82 of the second locking member 8 drive the second moving protrusion 94 and the first moving part respectively.
  • the protrusion 91 moves the first protrusion 90 of the first locking member 9 into the circuit breaker housing, thereby releasing the limit fit between the plug-in circuit breaker and the housing of the circuit breaker assembly position, so that the plug-in circuit breaker can be removed from the circuit breaker
  • the assembly position is disassembled; as shown in Figure 17, when the plug-in circuit breaker is in the closed state, the operating button 1d drives the indicator horizontal arm 74 to move down, and the indicator horizontal arm 74 is protruded by the second locking member.
  • the driver 83 drives the second locking member 8 to rotate counterclockwise so that the second protrusion 82 protrudes outside the circuit breaker housing. In this state (closed state), the second protrusion 82 protrudes outside the circuit breaker housing, due to the indicator The horizontal arm 74 limits the position of the movable protrusion 83 of the second locking member.
  • the second protrusion 82 cannot be squeezed into the circuit breaker housing, so when the plug-in circuit breaker is in the closed state, it cannot be assembled to the circuit breaker assembly position
  • the indicator 7 will also move back and forth in the indicator slot of the operation button 1d , So that when the plug-in circuit breaker is closed, the closing indicating surface 70 is opposite to the indicating hole 12d (preferably, the indicator track shaft 75 is located at the junction of the second vertical slot and the inclined slot at this time), the plug-in circuit breaker
  • the opening indicating surface 71 is opposite to the indicating hole 12d (preferably, the indicating member track shaft 75 is located at the junction of the first vertical groove and the inclined groove at this time, and the operation button 1d is continued to be pulled, then the indicating member track
  • the shaft 75 slides along the first vertical slot until the second locking member 8 drives the first locking member 9 to release the limit fit with the cas
  • the invention also discloses a connection terminal.
  • the wiring terminal of the present invention includes a wiring screw 2e, a crimping plate 2g, a nut piece 2f, and a wiring plate 2j; the wiring screw 2e is threadedly connected to the nut piece 2f; the crimping plate 2g is arranged on the nut piece 2f and Between the nuts of the terminal screws, they are arranged obliquely with respect to the terminal board 2j, the terminal board 2j is fixedly arranged, one end of the crimping plate 2g is limited, and the other end is arranged opposite to the terminal board 2j to form a space for connecting wires; insert the wires into the Screw the terminal screw 2e between the crimping plate 2g and the terminal plate 2j.
  • the nut 2f moves axially along the terminal screw 2e.
  • the nut 2f drives the end of the crimping plate 2g and the terminal plate 2j to lift up to press the wire It is tightly located between the crimping board 2g and the wiring board 2j.
  • the nut member 2f is in position-limiting cooperation with the terminal assembly cavity for accommodating the terminal block, preventing the nut member 2f from rotating, and can only move along the axial direction of the terminal screw 2e. Screw the terminal screw 2e, and the nut member 2f runs along the terminal screw 2e. The axial reciprocating movement.
  • the left end of the crimping plate 2g is limited, and the right end is arranged opposite to and used in conjunction with the wiring board 2j.
  • the crimping plate 2g is gradually inclined downward from the left end to the right end, and the crimping plate The left end of 2g is higher than the right end of the crimping plate 2g. Tighten the terminal screw 2e.
  • the nut 2f moves upward along the axis of the terminal screw 2e.
  • the nut 2f drives the right end of the crimping plate 2g to gradually lift up, pressing the wire on the crimping line. Between the board 2g and the wiring board 2j.
  • the terminal screw 2e needs to be screwed to make the nut 2f move downward along the axis of the terminal screw 2e to reduce the pressure between the crimping plate 2g and the wire to better remove the wire.
  • the wiring board 2j is provided with a plurality of lateral grooves or lateral ribs arranged side by side on the side facing the crimping plate 2g, and the extension direction of the lateral grooves or lateral ribs is the same as that of the wires.
  • the direction of insertion is vertical.
  • the pressure applied by the crimping plate 2g to the wires located between the crimping plate 2g and the wiring plate 2j mainly includes the pressure generated by the deformation of the crimping plate 2g itself and the nut 2f passing through the crimping plate 2g
  • the pressure applied to the wire is more reliable than the existing terminal that only relies on the crimping plate 2g to press the wire.
  • the nut member 2f may not be matched with the terminal assembly cavity that contains the terminal, but only rely on the friction force generated by the contact between the nut member 2f and the crimping plate 2g. , To restrict the nut 2f from rotating with the terminal screw 2e; in addition, because the nut 2f is a special-shaped piece, its center of gravity is located at one end of the nut 2f and does not coincide with the axis of the terminal screw 2e, so an eccentric force is generated to limit the nut The piece 2f rotates following the terminal screw 2e.
  • the nut 2f and the terminal screw 2e can also be fixedly connected (instead of threaded connection), and the terminal screw 2e is threaded with the housing of the terminal assembly cavity.
  • the wiring The screw 2e moves relative to the terminal assembly cavity while driving the nut 2e to move, which can also drive the crimping plate 2g to move.
  • the terminal includes a terminal screw 2e, a crimping plate 2g, a nut member 2f, a terminal plate 2j, a crimping plate mounting shaft 2h, and a crimping plate return spring 2i;
  • the terminal screw 2e is threadedly connected to the nut member 2f, and the nut member 2f and the terminal assembly cavity for accommodating the terminal are in position-limiting cooperation to prevent the nut member 2f from rotating, screw the terminal screw 2e, and the nut member 2f reciprocates along the axial direction of the terminal screw 2e;
  • the crimping plate 2g is arranged on the nut member 2f and Between the nuts of the terminal screws, they are arranged obliquely with respect to the terminal board 2j, and the terminal board 2j is fixedly arranged; one end of the crimping board 2g is provided with a crimping board shaft sleeve 20g, and the other end is arranged opposite to and used in conjunction with the terminal board 2j,
  • the crimping plate 2g is provided with a crimping plate bushing 20g at the left end, and the right end is arranged opposite to and used in conjunction with the wiring board 2j, and the crimping plate 2g gradually downwards from the left end to the right end. Tilt, the left end of the crimping plate 2g is higher than the right end of the crimping plate 2g. As shown in Figure 20, at this time, the gap between the right end of the crimping plate 2g and the wiring board 2j is the largest.
  • the wire can be inserted between the crimping plate 2g and the wiring board 2j at this time, and then screw the wiring screw 2e to make the nut piece 2f moves upward along the axis of the terminal screw 2e, and at the same time drives the right end of the crimping plate 2g to gradually lift, and at the same time, the gap between the right end of the crimping plate 2g and the terminal plate 2j gradually becomes smaller, thereby compressing the wire; as shown in Figure 21 At this time, the gap between the right end of the crimping board 2g and the wiring board 2j is the smallest, almost zero.
  • the crimping plate 2g includes a crimping plate sleeve 20g, a first connecting portion 21g, and a first crimping portion 22g, one end of the first connecting portion 21g is connected to the crimping plate sleeve 20g , The other end is bent and connected to one end of the first crimping portion 22g, and the other end of the first crimping portion 22g is matched with the wiring board 2j. Specifically, as shown in the direction shown in FIG.
  • the left end of the first connecting portion 21g is connected to the crimping plate bushing 20g, the right end is bent and connected to the left end of the first crimping portion 22g, and the right end of the first crimping portion 22g is connected to the wiring board. 2j is relatively set up and used together.
  • the crimping plate 2g has an L-shaped structure as a whole, the width of the first crimping portion 22g is greater than the width of the first connecting portion 21g, and the length of the crimping board shaft sleeve 20g is equal to the first The width of a connecting portion 21g is the same; the terminal screw 2e is arranged in the gap of the L-shaped structure of the crimping plate 2g.
  • the nut member 2f includes a first part 20f of a nut member threadedly connected with the terminal screw 2e and a second part 21f of the nut member bent and connected to one end of the first part 20f of the nut member.
  • the first part 20f is arranged opposite to the first connecting part 21g and used in cooperation
  • the second part 21f of the nut member is arranged opposite to the first crimping part 22g and used in cooperation.
  • the second part 21f of the nut member in contact and connected with the first crimping portion 22g (the two are substantially parallel), and the right end of the first part 20f of the nut member is connected to the first The right end of the part 21g is in contact with each other; as shown in Figure 21, after screwing the terminal screw 2e, the first crimping part 22g is first driven by the second part 21f of the nut to gradually lift up, and at the same time the second part 21f of the nut is gradually connected to the first The crimping portion 22g is separated, and then the first portion 20f of the nut member and the first connecting portion 21g cooperate to drive the first crimping portion 22g to continue to lift.
  • the included angle ⁇ between the first connecting portion 21g and the first crimping portion 22g is greater than the included angle ⁇ between the first portion 20f of the nut member and the second portion 21f of the nut member.
  • the wiring terminal of the present invention includes a wiring screw 2e, a crimping plate 2g, a nut piece 2f and a wiring board 2j; the wiring screw 2e is threadedly connected with the nut piece 2f, and the nut piece 2f is limited in position with the terminal assembly cavity that accommodates the wiring terminal Match to prevent the nut 2f from rotating, screw the terminal screw 2e, the nut member 2f reciprocates along the axial direction of the terminal screw 2e; the crimping plate 2g is arranged between the nut member 2f and the nut of the terminal screw, relative to the wiring The board 2j is inclined, the wiring board 2j is fixedly arranged, one end of the crimping board 2g is limited, and the other end is set opposite to the wiring board 2j and used in cooperation; insert the wire between the crimping board 2g and the wiring board 2j, and screw it The terminal screw 2e and the nut member 2f move axially along the terminal screw 2e, and the nut member 2f drives the
  • the crimping plate 2g includes a crimping plate first part 200g, a crimping plate second part 210g, and a crimping plate third part 220g.
  • the crimping plate first part 200g passes The first opening provided on it is sleeved on the terminal screw 2e, the second part 210g of the crimping plate is provided with a second waist-shaped hole, and the second hole 210g of the crimping plate is sleeved through the second waist-shaped hole
  • one end of the first part 200g of the crimping plate is bent and connected to one end of the second part 210g of the crimping plate, and the other end of the second part 210g of the crimping plate is bent and connected to the third part 220g of the crimping plate.
  • the other end of the third part 220g of the wire plate is used in conjunction with the terminal plate 2j, and the second part 210g of the crimping plate and the third part 220g of the crimping plate are integrally arranged obliquely with respect to the terminal 2j;
  • the nut member 2f includes a thread with the terminal screw 2e
  • the first part 20f of the nut member connected and the second part 21f of the nut member that is bent and connected to the first part 20f of the nut member.
  • the first part 20f of the nut member and the second part 210g of the crimping plate are arranged oppositely and used together.
  • the two parts 21f and the third part 220g of the crimping plate are oppositely arranged and used in cooperation.
  • connection between the first part 200g of the crimping plate and the second part 210g of the crimping plate is an arc structure, and the second part 210g of the crimping plate and the third part 220g of the crimping plate
  • the included angle ⁇ 1 is greater than the included angle ⁇ between the first portion 20f of the nut member and the second portion 21f of the nut member.
  • the first part 200g of the crimping plate and the second part 210g of the crimping plate are sequentially arranged between the nut of the terminal screw 2e and the nut 2f, and the third part of the crimping plate
  • the left end of 220g is bent and connected to the right end of the second part 210g of the crimping plate, and the right end of the third part 220 of the crimping plate is arranged opposite to and used in conjunction with the terminal block 2j; as shown in Figures 22 and 23, the nut and the terminal screw 2e
  • the screw of the terminal screw 2e There is a large force between the cap and the first part 200g of the crimping plate, between the second part 210g of the crimping plate and the first part 20f of
  • the wiring terminal of the present invention includes a wiring screw 2e, a crimping plate 2g, a crimping plate mounting shaft 2h, a nut member 2f, and a wiring plate 2j; the wiring screw 2e is threadedly connected with the nut member 2f; the crimping plate 2g includes opposing arrangements The upper crimping plate 2g1 and the lower crimping plate 2g2, the upper crimping plate 2g1 and the lower crimping plate 2g2 are both inclined with respect to the wiring board 2j, and one end of the upper crimping plate 2g1 is connected to one end of the lower crimping plate 2g2.
  • the free end of the lower crimping board 2g2 and the free end of the upper crimping board 2g1 are both set opposite to the wiring board 2j and used in cooperation; insert the wire into the crimping board 2g and the free end of the upper crimping board 2g1.
  • the nut 2f moves along the axial direction of the terminal screws 2e, and at the same time, the nut 2 drives the end of the crimping plate 2g and the terminal 2j to be lifted, pressing the wire on the crimping line Between the board 2g and the wiring board 2j.
  • the wire pressing plate 2g is in position-limiting cooperation with the terminal screw 2e to prevent the wire pressing plate 2g from moving in a direction away from the terminal plate 2j. Further, the nut member 2f is restricted to prevent its rotation, the terminal screw 2e is screwed, and the nut member 2f reciprocates along the axis of the terminal screw 2e.
  • the upper crimping plate 2g1 and the lower crimping plate 2g2 are both L-shaped structures, and the upper crimping plate 2g1 includes an upper connecting portion 2g11 and an upper crimping portion 2g10.
  • the crimping portion 2g10 includes a first crimping end and a first connecting end respectively disposed at both ends of the crimping portion.
  • the first crimping end is arranged opposite to the wiring board 2j and used in cooperation.
  • the first connecting end is connected to one end of the upper connecting portion 2g11.
  • the width of one connecting end is greater than the width of the upper connecting portion 2g11; the lower crimping plate 2g2 includes a lower connecting portion 2g21 and a lower crimping portion 2g20, and the lower crimping portion 2g20 includes a second crimping end and a second crimping portion respectively provided at both ends thereof.
  • the second crimping end is arranged opposite to the wiring board 2j and used in conjunction, the second connecting end is connected to one end of the lower connecting portion 2g21, the width of the second connecting end is greater than the width of the lower connecting portion 2g21, and the other end of the lower connecting portion 2g21 It is connected to the other end of the upper connecting portion 2g11; the first crimping end protrudes from the second crimping end in the direction of the terminal plate 2j, and the second connecting end protrudes from the first connecting end in the direction of the terminal screw 2g.
  • the right end of the upper crimping portion 2g10 and the right end of the lower crimping portion 2g20 are respectively arranged opposite to and used in conjunction with the wiring board 2j, and the right end of the lower crimping portion 2g20 faces the direction of the wiring board 2j (toward Right) protruding from the right end of the upper crimping plate 2g10, the left end of the upper crimping portion 2g20 protrudes from the left end of the lower crimping plate 2g20 in the direction of the terminal screw 2e (to the left); the terminal screw 2e is set on the crimping plate mounting shaft 2h and the upper crimping portion 2g10 (and between the crimping plate mounting shaft 2h and the lower crimping portion 2g20); screw the terminal screw 2e, the nut 2f moves upward, and at the same time drives the lower crimping portion 2g20, The right end of the upper wire 2g10 is lifted up to compress
  • the lower crimping plate 2g2 further includes a stitching elastic piece 2g22 arranged in the middle of the lower crimping portion 2g20.
  • One end of the stitching elastic piece 2g22 is connected to the lower crimping portion 2g20, and the other end is connected to the upper crimping portion 2g20.
  • the parts 2g10 are arranged oppositely and used in conjunction.
  • the included angle ⁇ between the thread-removing elastic piece 2g22 and the lower wire pressing portion 2g20 is less than 90°.
  • connection screw 2e to move the nut 2f down, and the wire removal spring 2g22 can provide elastic force to release the wire from the lower crimping portion 2g20, which improves the convenience of wire removal And efficiency.
  • the wiring terminal of the present invention further includes two oppositely arranged fixing plates 2k, and the wiring screws 2e, nut pieces 2f, crimping plates 2g and wiring plates 2j are all arranged on the two fixing plates.
  • the two fixing plates 2k limit the nut 2f to prevent the nut 2f from rotating, and the two ends of the crimping plate mounting shaft 2h are respectively connected to the two fixing plates 2k. Further, as shown in FIGS.
  • the fixing plate 2k is provided with a nut sliding groove 2k1, and both ends of the nut 2f are provided with a nut sliding table 22f, and the two nut sliding tables 22f are respectively slid It is arranged in the two nut sliding grooves 2k1. Further, as shown in FIG. 26, the fixing plate 2k is also provided with a wiring board limit hole 2k3, and a pair of edges of the wiring board 2j are each provided with a wiring board limit station 2j0, and the two wiring board limit positions The stations 2j0 are respectively arranged in the two limit holes 2j0 of the wiring board.
  • the two ends of the crimping plate mounting shaft 25 are respectively connected to the upper part of one end of the two fixing plates 2k. Specifically, the two ends of the crimping plate mounting shaft 25 are respectively connected to the upper left of the two fixing plates 2k. The corners are connected; the wiring board 2j is arranged between the other ends of the two fixing plates 2k. Specifically, the two ends of the wiring board 2j are respectively connected to the right ends of the two fixing plates 2k; one end of the crimping plate 2g is connected to the crimping plate mounting shaft 2h is connected, and the other end is set opposite to the wiring board 2j and used in conjunction.
  • the crimping board 2g is inclined downward from its end connected to the crimping board mounting shaft 2h to the other end. Specifically, the crimping board 2g extends from its left end to the other end. The right end gradually slopes downward; the crimping plate 2g has an L-shaped structure as a whole, and the terminal screw 2e is set in the gap of the L-shaped structure of the crimping plate 2g, and is threaded with the nut 2f provided under the crimping plate 2g.
  • the specific , The terminal screw 2e is arranged on the front side of the upper connecting portion 2g11 (lower connecting portion 2g21), on the left side of the upper crimping portion 2g10 (lower crimping portion 2g20).
  • the wiring board 2j is provided with a plurality of lateral grooves or lateral ribs arranged side by side on the side facing the crimping plate 2g, and the extending direction of the lateral grooves or lateral ribs is perpendicular to the direction in which the wires are inserted.
  • connection terminal of the present invention can be used for the plug-in circuit breaker of the present invention.
  • the first outlet terminal 11 and the second outlet terminal 10 of the plug-in circuit breaker can use the connection terminal of the present invention, which improves the wiring. Efficiency and secondly improve the reliability of the wiring.
  • the circuit breaker housing is also provided with auxiliary wire-removing holes, each outlet terminal is matched with an auxiliary wire-removing hole correspondingly, and the auxiliary wire-removing hole is arranged on the side of the terminal screw 2e and opposite to the crimping plate 2g. .
  • the auxiliary wire removal hole is arranged opposite to the end of the wire pressing plate 2g that is matched with the wiring board 2j.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un disjoncteur enfichable dans le domaine technique des appareils à basse tension. Une extrémité d'un bouton d'actionnement (1d) d'une électrode de protection du disjoncteur enfichable est insérée dans une coque de disjoncteur, le bouton d'actionnement (1d) et une première borne de sortie de câble (11) et une première borne d'entrée de câble (110) sont agencés à deux extrémités de la coque de disjoncteur respectivement, un mécanisme d'actionnement (3) et un mécanisme de protection (4) sont agencés au milieu d'une cavité de montage d'électrode de protection côte à côte et sont positionnés entre le bouton d'actionnement (1d) et un système d'extinction d'arc (5) et entre la première borne de sortie de câble (11) et le système d'extinction d'arc (5) respectivement ; lorsque le disjoncteur enfichable est dans un état fermé, le mécanisme d'actionnement (3) est dans un état de verrouillage et de fixation, un état de court-circuit ou un état de surcharge se produit, le mécanisme de protection (4) entraîne le déclenchement du mécanisme d'actionnement (3), le disjoncteur enfichable se déclenche et le mécanisme d'actionnement (3) entre dans un état de déclenchement, le bouton d'actionnement (1d) est tiré pour entraîner le retour du mécanisme d'actionnement (3) à l'état de verrouillage et de fixation, et le disjoncteur enfichable entre dans un état de coupure ; ou le disjoncteur enfichable est activé pour entrer dans l'état de coupure, et après qu'une panne a été éliminée, le bouton d'actionnement (1d) est enfoncé pour entraîner l'action du mécanisme d'actionnement (3) de sorte que le disjoncteur enfichable soit activé pour entrer dans l'état de fermeture. Le disjoncteur enfichable présente une structure compacte et une petite taille.
PCT/CN2020/128873 2019-11-15 2020-11-14 Disjoncteur enfichable WO2021093874A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2020381661A AU2020381661B2 (en) 2019-11-15 2020-11-14 Plug-in circuit breaker
EP20887787.8A EP4060705A4 (fr) 2019-11-15 2020-11-14 Disjoncteur enfichable
BR112022009330A BR112022009330A2 (pt) 2019-11-15 2020-11-14 Disjuntor de plugue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911121722.1A CN111477503A (zh) 2019-11-15 2019-11-15 插入式断路器
CN201911121722.1 2019-11-15

Publications (1)

Publication Number Publication Date
WO2021093874A1 true WO2021093874A1 (fr) 2021-05-20

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PCT/CN2020/128873 WO2021093874A1 (fr) 2019-11-15 2020-11-14 Disjoncteur enfichable

Country Status (5)

Country Link
EP (1) EP4060705A4 (fr)
CN (1) CN111477503A (fr)
AU (1) AU2020381661B2 (fr)
BR (1) BR112022009330A2 (fr)
WO (1) WO2021093874A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114093693A (zh) * 2021-12-06 2022-02-25 珠海优特电力科技股份有限公司 空气开关的进线闭锁结构以及空气开关组件
CN114220711A (zh) * 2021-12-20 2022-03-22 济南市中恒光机电技术中心 一种断路器及使用方法
CN118116777A (zh) * 2024-03-05 2024-05-31 浙江东亚电子有限公司 一种紧凑型高密度智能断路器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477503A (zh) * 2019-11-15 2020-07-31 浙江正泰电器股份有限公司 插入式断路器
CN112151317A (zh) * 2020-09-07 2020-12-29 浙江正泰电器股份有限公司 断路器
CN112151319B (zh) * 2020-09-07 2024-08-06 浙江正泰电器股份有限公司 断路器
CN118315246A (zh) * 2024-05-14 2024-07-09 裕明电气有限公司 一种断路器触头系统及其断路器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009199898A (ja) * 2008-02-21 2009-09-03 Panasonic Electric Works Denro Co Ltd 回路遮断器
CN106710972A (zh) * 2015-07-16 2017-05-24 上海良信电器股份有限公司 断路器
CN207624637U (zh) * 2017-10-26 2018-07-17 上海良信电器股份有限公司 一种插入式小型断路器
CN208077897U (zh) * 2017-12-12 2018-11-09 上海电科电器科技有限公司 漏电保护断路器
CN209544266U (zh) * 2018-12-28 2019-10-25 浙江正泰电器股份有限公司 小型断路器
CN110400727A (zh) * 2019-08-01 2019-11-01 浙江正泰电器股份有限公司 断路器
CN111477503A (zh) * 2019-11-15 2020-07-31 浙江正泰电器股份有限公司 插入式断路器
CN211208346U (zh) * 2019-11-15 2020-08-07 浙江正泰电器股份有限公司 插入式断路器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109637907B (zh) * 2018-12-28 2024-05-14 浙江正泰电器股份有限公司 小型断路器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009199898A (ja) * 2008-02-21 2009-09-03 Panasonic Electric Works Denro Co Ltd 回路遮断器
CN106710972A (zh) * 2015-07-16 2017-05-24 上海良信电器股份有限公司 断路器
CN207624637U (zh) * 2017-10-26 2018-07-17 上海良信电器股份有限公司 一种插入式小型断路器
CN208077897U (zh) * 2017-12-12 2018-11-09 上海电科电器科技有限公司 漏电保护断路器
CN209544266U (zh) * 2018-12-28 2019-10-25 浙江正泰电器股份有限公司 小型断路器
CN110400727A (zh) * 2019-08-01 2019-11-01 浙江正泰电器股份有限公司 断路器
CN111477503A (zh) * 2019-11-15 2020-07-31 浙江正泰电器股份有限公司 插入式断路器
CN211208346U (zh) * 2019-11-15 2020-08-07 浙江正泰电器股份有限公司 插入式断路器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4060705A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114093693A (zh) * 2021-12-06 2022-02-25 珠海优特电力科技股份有限公司 空气开关的进线闭锁结构以及空气开关组件
CN114093693B (zh) * 2021-12-06 2023-07-25 珠海优特电力科技股份有限公司 空气开关的进线闭锁结构以及空气开关组件
CN114220711A (zh) * 2021-12-20 2022-03-22 济南市中恒光机电技术中心 一种断路器及使用方法
CN118116777A (zh) * 2024-03-05 2024-05-31 浙江东亚电子有限公司 一种紧凑型高密度智能断路器

Also Published As

Publication number Publication date
CN111477503A (zh) 2020-07-31
EP4060705A4 (fr) 2023-11-22
BR112022009330A2 (pt) 2022-08-09
AU2020381661A1 (en) 2022-05-26
AU2020381661B2 (en) 2023-07-13
EP4060705A1 (fr) 2022-09-21

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