WO2021093878A1 - 插入式断路器 - Google Patents

插入式断路器 Download PDF

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Publication number
WO2021093878A1
WO2021093878A1 PCT/CN2020/128877 CN2020128877W WO2021093878A1 WO 2021093878 A1 WO2021093878 A1 WO 2021093878A1 CN 2020128877 W CN2020128877 W CN 2020128877W WO 2021093878 A1 WO2021093878 A1 WO 2021093878A1
Authority
WO
WIPO (PCT)
Prior art keywords
boss
housing
circuit breaker
locking
button mechanism
Prior art date
Application number
PCT/CN2020/128877
Other languages
English (en)
French (fr)
Inventor
卢科军
顾翔翼
杨安
朱俊
郭绍军
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 US17/776,289 priority Critical patent/US20230012081A1/en
Priority to EP20887460.2A priority patent/EP4060709A4/en
Priority to BR112022009368A priority patent/BR112022009368A2/pt
Priority to JP2022527238A priority patent/JP2023502907A/ja
Priority to AU2020384683A priority patent/AU2020384683B2/en
Publication of WO2021093878A1 publication Critical patent/WO2021093878A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • 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
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • 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
    • H01H71/50—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
    • 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

Definitions

  • the invention relates to the technical field of low-voltage terminal electrical appliances, in particular to a plug-in circuit breaker.
  • plug-in circuit breakers can not only provide various safety protection performances of circuit breakers for power lines and electrical equipment, but also meet the power quality needs of different electrical equipment, and enable the circuit breaker to be plugged in.
  • the structure of plug-in circuit breakers has been developed into various types, but under the development trend of miniaturization of electrical equipment, the overall structure and operation mode of matching circuit breakers still urgently need to be further improved, optimized, and upgraded. .
  • Existing plug-in circuit breakers are usually equipped with a locking device to prevent the circuit breaker from being pulled out in the closed state, and/or prevent the circuit breaker from closing during the insertion process, but usually does not set a limit in the open state Mechanism so that the circuit breaker can be inserted into the cabinet, but this will cause the circuit breaker to fall out of the cabinet during transportation or other similar situations that produce vibration.
  • the existing locking devices often cannot prevent incorrect brute force insertion or brute force extraction in the closed state.
  • the existing plug-in circuit breaker's locking devices, fixed unlocking devices and other mechanisms generally lack designs that are easy to fail and have poor reliability and stability to avoid the plug-in protection function caused by the structural factors of the plug-in receiver.
  • the existing plug-in circuit breaker locking device, fixed unlocking device and other mechanisms have not yet realized the impact of the device structure on the insertion receiver selection, resulting in the above-mentioned poor interchangeability, versatility and tolerance. And other issues.
  • the existing plug-in circuit breaker locking device has many parts, complex structure, and cumbersome function realization, and the sheet metal structure of the installation cabinet has a certain flexibility, so that the circuit breaker can be installed and installed violently in the closed state.
  • Cabinet there is a risk of live operation, which is mainly caused by the lateral force (component force) of the insertion and extraction force on the circuit breaker.
  • the artificial insertion and extraction force on the circuit breaker is the main driving force. , Which can be decomposed into a longitudinal force parallel to the plug-in direction and a transverse force perpendicular to the plug-in direction.
  • the mechanism resists the internal force of plug-in and pull-out (the force opposite to the longitudinal force of plug-in and pull-out, such as friction, elastic force, etc.), the greater the plug-in and pull-out force required, that is, laborious; The smaller the required insertion force is, the less effort is required, and the insertion and removal operation is easier. And if the lateral force (component force) of the insertion and extraction force on the circuit breaker is large, if the force is borne by a part (or a point) of the circuit breaker, it is easy to cause the deformation of the insertion receptor due to the stress concentration. It is directly related to the adaptability of the circuit breaker.
  • the mechanism design should use as little as possible (preferably avoid) the structure of the lateral force (component force), especially the structure that can amplify the lateral force (such as cone wedge, inclined plane, lever ) And so on, but the existing technology often does not realize this.
  • the object of the present invention is to provide a plug-in circuit breaker with simple structure and safety and reliability.
  • a plug-in circuit breaker comprising a casing, a button mechanism and an operating mechanism.
  • the button mechanism drives the operating mechanism to perform closing/opening.
  • the button mechanism has a closing position and opening corresponding to the closing/opening state of the circuit breaker Position
  • the circuit breaker also includes a linkage member and a locking member arranged in the housing, the linkage member is provided with an abutting boss, the locking member is provided with a locking boss; when the button mechanism is in the closing position, the collision of the linkage member The boss protrudes out of the housing and is restricted to the extended position by the button mechanism and cannot be retracted into the housing; when the button mechanism is in the open position, the linkage member retracts into the housing, and the locking boss of the locking member extends Outside the housing, and the locking boss of the locking member can be pushed back into the housing by the retracted external force.
  • the locking member and the button mechanism resist and cooperate to prevent the button mechanism from being switched from the opening position to the closing position. position.
  • the locking boss of the locking member extends out of the housing and is restricted in the extended position by the button mechanism and cannot be retracted into the housing.
  • the button mechanism can be pulled to move out of the housing, and the locking boss of the locking member is retracted into the housing during the process of moving the button mechanism to the outside of the housing.
  • the button mechanism drives the linkage member, and the linkage member drives the locking member to unlock and retract the locking boss into the housing.
  • the linkage is rotatably arranged on the housing, and the linkage includes an unlocking portion that cooperates with the locking piece and a linkage drive portion that cooperates with the button mechanism.
  • the linkage is driven by the linkage drive portion. The member rotates, and the unlocking part applies force to the locking member to retract the locking boss of the locking member into the housing.
  • the button mechanism includes a button, a connecting rod, and a driving member.
  • the button drives the driving member to move through the connecting rod.
  • the driving member is rotatably arranged in the housing and connected to the operating mechanism.
  • the locking boss of the locking member protrudes out of the housing, and the outer side of the driving member and the locking member resist and cooperate so that the locking member cannot be retracted into the housing; when the button mechanism is in the open position, The outer side surface of the driving member is misaligned with the locking member, and the resisting cooperation is released.
  • the locking member includes an extension column
  • the driving member includes a driving limit part that cooperates with the extension column.
  • the driving limit part of the driving part faces the extension of the locking part.
  • the outstretching column of the locking member cooperates with the driving limit part to prevent the driving member from rotating in the closing direction and prevent the button mechanism from switching from the opening position to the closing position. position.
  • the locking member is installed in the housing through an elastic member, the elastic member is installed between the locking member and the housing, and the elastic member causes the locking boss of the locking member to protrude out of the housing.
  • the cross-section of the locking boss of the locking piece is a right-angled trapezoid or a right-angled triangle
  • the locking boss includes a straight surface and an inclined surface
  • the straight surface faces the direction in which the circuit breaker is pulled out of the cabinet and is perpendicular to the installation and insertion of the circuit breaker.
  • the inclined surface faces the direction in which the circuit breaker is inserted into the cabinet.
  • the linkage member includes a resisting boss and a driven boss.
  • the button mechanism pushes the movable boss to make the resisting boss protrude out of the housing, and the button mechanism and the driven boss resist and cooperate to make The conflicting boss cannot be retracted into the housing.
  • the button mechanism releases the resisting cooperation with the driven boss and gives way, and the conflicting boss is retracted into the housing.
  • the housing is provided with a limiting hole, and the conflicting boss of the linkage member and the locking boss of the locking member are matched with the same limiting hole.
  • the button mechanism includes a button, a connecting rod and a driving member.
  • the button drives the driving member to move through the connecting rod.
  • the driving member is rotatably arranged in the housing and connected to the operating mechanism.
  • the button is provided with a movable boss to cooperate with The first driving part of the button, when the button mechanism is in the closing position, the button and the driven boss abut the first driving part, when the button mechanism is in the opening position, the first driving part of the button and the driven boss are misaligned avoid.
  • the collision boss is a square boss, and the collision boss includes a left contour surface and a right contour surface.
  • the left contour surface and the right contour surface are respectively perpendicular to the circuit breaker. Install the insertion direction, the left profile surface prevents the circuit breaker from being pulled out of the cabinet in the direction in which the circuit breaker is pulled out of the cabinet, and the right profile surface prevents the circuit breaker from being inserted into the cabinet in the direction where the circuit breaker is inserted into the cabinet.
  • the housing is provided with a limiting hole that cooperates with the locking boss
  • the locking member is installed in the housing through a linear movement pair
  • the linear movement direction is perpendicular to the installation and insertion direction of the circuit breaker.
  • the locking piece is arranged between the button mechanism and the limiting hole, the upper part of the locking piece near the limiting hole is provided with a locking boss, the lower part near the button mechanism is provided with an outstretching column, and a linkage is provided on one side of the locking boss Steps.
  • the middle part of the linkage is provided with a rotation center, one end is provided with an abutting boss, one end is provided with an unlocking part on the other side that cooperates with the locking part, and the other end is provided with a linkage driving part.
  • a linkage driving part Between the conflicting bosses, there is a movable boss on the side close to the button mechanism.
  • the button mechanism is provided with a driving part that cooperates with the driving part of the linkage. During the opening process, the button mechanism is released from the process of moving out of the housing.
  • the resisting boss of the driven boss cooperates and gives way, and the driving part on the button mechanism pulls the driving part of the linkage to drive the linkage to rotate, so that the resisting boss is retracted into the housing; when the button mechanism is in the open position, the button mechanism can be
  • the driving part continues to drive the linkage member to rotate while the button mechanism continues to move toward the outside of the housing, the unlocking part applies a retracting force to the locking part, and the locking part is retracted to the housing.
  • the plug-in circuit breaker of the present invention includes a circuit breaker housing, a locking member installed inside the circuit breaker housing, a linkage member and a button mechanism.
  • the button mechanism When the button mechanism is in the closing position, the collision boss of the linkage member is restricted by the button mechanism In the extended position and cannot be retracted back to the retracted position, it can reliably prevent the closing plugging and avoiding the risk of live operation; moreover, when the circuit breaker is in the open state, the collision boss of the linkage is retracted into the shell, The locking boss of the locking piece protrudes out of the shell, but when it is retracted by the external force, it can be pushed back into the shell by the retracted external force, that is, it does not prevent the circuit breaker from being inserted into the cabinet in the open state, but can protect The circuit breaker fell out of the cabinet due to vibration during transportation, etc.
  • the button mechanism when the button mechanism is in the opening position, when the locking boss of the locking member retracts into the housing, the locking member resists the button mechanism, preventing the button mechanism from being switched from the opening position to the closing position, making the circuit breaker unable to Close, so that the circuit breaker cannot be closed when it is not installed in the correct working position of the cabinet. Only when the circuit breaker is installed in the correct position, the button mechanism can open and close normally.
  • the locking member is restricted by the driving member to the extended position and cannot be retracted back to the retracted position.
  • the button mechanism when the button mechanism is in the opening position, when the circuit breaker needs to be removed, the locking member is unlocked by the linkage, so that the locking protrusion of the locking member is retracted into the housing, so that the circuit breaker can be safely pulled out from the installation cabinet.
  • Fig. 1 is a schematic diagram of the overall structure of the plug-in circuit breaker of the present invention.
  • Fig. 2 is a schematic diagram of the structure of the button mechanism, the linkage member and the locking member in Fig. 1.
  • Fig. 3 is a partial enlarged schematic view of the linkage member, handle and locking member of the present invention.
  • Fig. 4 is a structural state diagram of the plug-in circuit breaker in the anti-energized insertion state during the installation process.
  • Figure 5 is a schematic diagram of the structure of the plug-in circuit breaker in the anti-closing and unplugging state.
  • Fig. 6 is a partial enlarged schematic diagram of the linkage member, the locking member and the handle in the correctly installed and closed state.
  • Fig. 7 is a partial enlarged schematic diagram of the opening and closing instructions and unlocking mechanism of the button mechanism.
  • Figure 8 is a partial enlarged schematic diagram of the opening and closing indication and unlocking mechanism in the opening state.
  • Figure 9 is a partial enlarged schematic diagram of the opening and closing indication and unlocking mechanism in the closed state.
  • Figure 10 is a schematic diagram of the overall structure of the opening and closing indication and unlocking mechanism in the opening and disassembling state.
  • Fig. 11 is a schematic structural diagram of a specific embodiment of the linkage and the housing 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 to 11.
  • 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 housing 6, a button mechanism, an operating mechanism 9 which is drivingly connected to the button mechanism, a movable contact 9a connected to the operating mechanism 9, and a movable contact 9a arranged opposite to the movable contact 9a.
  • the static contact 9b generally also includes (but is not limited to) the short-circuit protection mechanism 11, the arc extinguishing device 12, the overload protection mechanism 14, the outlet connection device 13, the inlet connection device 1a, 1b and other components ( (Not shown in the figure), the button mechanism drives the operating mechanism 9 to drive the moving contact and the static contact to contact and close, or drives the operating mechanism 9 to drive the moving contact and the static contact to separate and open, and the button mechanism has the ability to close with the circuit breaker / The closing position and opening position corresponding to the opening state.
  • the plug-in circuit breaker is also provided with a locking device, and the housing 6 is provided with a limit hole 61 that cooperates with the locking device.
  • the limit hole 61 of the plug-in circuit breaker corresponds to the limit hole B0 of the cabinet.
  • the limit hole 61 of the plug-in circuit breaker is misaligned with the limit hole B0 of the cabinet, and the sheet metal part B of the cabinet will block the limit hole B0 of the cabinet. This is a prior art in the art and will not be repeated here.
  • the plug-in circuit breaker of the present invention includes a housing 6 provided with a limit hole 61, a button mechanism and an operating mechanism 9.
  • the button mechanism drives the operating mechanism 9 to perform closing/opening, and the button
  • the mechanism has a closing position and an opening position corresponding to the closing/opening state of the circuit breaker.
  • the button mechanism includes a button 2, a connecting rod 7 and a driving member 5.
  • the button 2 drives the driving member 5 to move through the connecting rod 7.
  • the driving member 5 is rotatably arranged in the housing 6 and connected to the operating mechanism 9; Button 2, button 2 drives the driving part 5 to rotate to one side through the connecting rod 7, and the driving part 5 drives the operating mechanism 9 through the U-shaped rod 8 to drive the movable contact 9a to contact the static contact 9b to achieve closing, pull the button 2,
  • the button 2 drives the driving part 5 to rotate to the other side through the connecting rod 7, and the driving part 5 drives the operating mechanism 9 through the U-shaped rod 8 to drive the movable contact 9a to separate from the static contact to realize opening.
  • the function of the driving member 5 is similar to the handle of a traditional miniature circuit breaker.
  • the operating mechanism usually includes a contact support, a lock and a trip, which are connected with the movable contact 9a, a short-circuit protection mechanism 11 and an overload protection mechanism 14 and a lock of the operating mechanism.
  • the buckle is correspondingly set, and when a short circuit or overload occurs, it acts on the buckle to trip the operating mechanism to make the circuit breaker open for protection.
  • the circuit breaker further includes a locking device, the locking device includes a linkage 3 and a locking member 4 arranged in the housing 6, and the linkage 3 is provided with a resisting boss 31, which locks
  • the member 4 is provided with a locking boss 41 corresponding to the limit hole 61; when the button mechanism is in the closing position, the conflicting boss 31 of the linkage 3 extends out of the housing 6 and is restricted by the button mechanism 2 The extended position cannot be retracted into the housing; when the button mechanism is in the open position, the linkage 3 is retracted into the housing 6, and the locking boss 41 of the locking member 4 extends out of the limit hole 61 of the housing 6 After applying the retracting external force to the locking member 4, the locking member 4 can be pushed back into the housing 6 by the retracting external force.
  • the conflicting boss 31 of the linkage 3 is arranged corresponding to the second limiting hole on the housing 6, and the second limiting hole and the limiting hole 61 are arranged side by side, when the button mechanism is in the closing position , The conflicting boss 31 extends out of the second limiting hole of the housing 6.
  • the second limiting hole and the limiting hole 61 are the same limiting hole, and the conflicting boss 31 and the locking boss 41 share the same limiting hole 61.
  • a solution in which the conflicting boss 31 and the locking boss 41 share the same limiting hole 61 is adopted.
  • the circuit breaker is closed before installation, the linkage 3 is driven to rotate counterclockwise by the first driving portion 20 of the button 2, and the collision boss 31 of the linkage 3 extends out of the housing 6. Outside the limiting hole 61, and is restricted by the first drive portion 20 of the button 2 in the extended position and cannot be retracted into the housing. At this time, when the circuit breaker is reinstalled in the cabinet, the right side of the conflicting boss 31 The contour surface 31b is in conflict with the lateral end surface B1 of the cabinet sheet metal part, and the circuit breaker cannot be installed to the working position, which avoids live operation and improves safety.
  • the collision boss 31 of the linkage 3 protrudes out of the limit hole 61 of the housing 6, and is driven by the first driving part 20 of the button 2.
  • the abutment restriction cannot be retracted into the casing at the extended position.
  • the left contour surface 31a of the abutment boss 31 conflicts with a hole wall B2 of the cabinet limit hole B0 of the cabinet sheet metal part.
  • the circuit breaker is pulled outwards, The circuit breaker cannot be pulled out from the working position, which avoids live operation and improves safety.
  • the locking member 4 is installed in the housing 6 through an elastic member.
  • the locking member 4 is provided with a locking boss 41 disposed opposite to the limiting hole 61.
  • the elastic member is installed on the locking member 4 and the housing. Between the bodies 6, the locking member 4 has two working positions, extending and retracting.
  • the elastic member makes the locking boss 41 of the locking member 4 protrude out of the limiting hole 61.
  • the circuit breaker is opened, After the locking member 4 exerts a retracting external force, the locking member 4 overcomes the biasing force of the elastic member to retract the locking boss 41 into the housing.
  • the circuit breaker By making the locking boss 41 of the locking member 4 extend out of the limit hole when the brake is opened, the circuit breaker can be effectively prevented from being shaken out of the cabinet due to transportation and other reasons.
  • the locking boss 41 can be locked due to the retracting force applied to the locking member 4 Retract into the shell, so that when the circuit breaker is inserted into the cabinet in the open state, the locking boss 41 of the locking piece 4 is retracted into the shell under the extruding force exerted by the sheet metal parts of the cabinet, so that the circuit breaker can be inserted into the cabinet smoothly Inside.
  • the cross section of the locking boss 41 of the locking member 4 protruding out of the limiting hole 61 is a right-angled trapezoid or a right-angled triangle, and the locking boss 41 includes a straight surface and an inclined surface perpendicular to the side wall of the limiting hole 61,
  • the straight surface faces the direction in which the circuit breaker is pulled out of the cabinet, and the inclined surface faces the direction in which the circuit breaker is inserted into the cabinet, so that the circuit breaker is easily inserted into the cabinet when the circuit breaker is opened.
  • the elastic element is a compression spring 10, of course, the elastic element may also be other elastic elements such as a torsion spring or a leaf spring.
  • the locking member 4 when the button mechanism is in the opening position, after applying a retracting external force to the locking member 4, when the locking boss 41 of the locking member 4 is retracted into the housing, the locking member 4 and The button mechanism resists and cooperates to prevent the button mechanism from switching from the open position to the closed position, so that the plug-in circuit breaker cannot be closed during installation in the cabinet, and the button 2 cannot be pressed in place to avoid live operation.
  • the locking member 4 further includes an overhanging column 42
  • the driving member 5 includes a drive limiting portion 51 that cooperates with the overhanging column 42.
  • the drive limiting The portion 51 is a step provided on the side wall of the driving member 5, of course, it can also be a groove or a protrusion provided on the driving member 5.
  • the driving limit portion 51 of the driving member 5 turns to the position of the extension column 42 facing the locking member 4.
  • the limit of the plug-in circuit breaker is The position hole 61 is misaligned with the limit hole B0 of the cabinet.
  • the locking boss 41 of the locking member 4 is retracted into the housing under the external force of the cabinet sheet metal, and the outrigger 42 of the locking member 4 extends into the driving limit part. 51.
  • the locking member 4 and the driving member 5 resist and cooperate to prevent the button mechanism from being switched from the opening position to the closing position.
  • the layout structure is more reasonable and the space occupied is small.
  • the locking member 4 can also be engaged with the button 2 or the connecting rod 7, for example, by being limited by the boss or the slot on the button 2 so that the button 2 cannot be pressed into the circuit breaker to close; The hook resisting and cooperating makes the connecting rod 7 unable to move in the closing direction.
  • the locking boss 41 of the locking member 4 when the button mechanism is in the closing position, the locking boss 41 of the locking member 4 extends out of the limiting hole 61 of the housing 6 and is restricted in the extended position by the button mechanism It cannot be returned to the shell, and is used to assist the linkage 3 to prevent the circuit breaker from being inserted into and removed from the cabinet in the closed state (the locking member 4 plays an auxiliary role, because the inclined surface 412 of the locking boss 41 of the locking member is connected to the open circuit The outer surface of the device is at a certain inclination. Even if the locking boss 41 is always exposed, due to the elasticity of the cabinet sheet metal structure, it is still possible to force the circuit breaker to be pushed into the circuit breaker when the switch is closed, causing safety hazards).
  • the driving member 5 has an outer side surface 52.
  • the button mechanism When the button mechanism is in the closing position, the locking boss 41 of the locking member 4 protrudes out of the housing 6, and the driving limit portion 51 of the driving member 5 Turn away to be misaligned with the extension column 42, so that the outer side surface 52 of the driving member 5 rotates to a position where it resists and fits with the extension column 42 of the locking member 4, so that the locking member 4 cannot be retracted into the housing 6; the button mechanism is in the opening In the position, the outer side surface 52 of the driving member 5 is misaligned with the locking member 4, and the resisting cooperation is released. At this time, the driving limit portion 51 of the driving member 5 turns to the position corresponding to the outrigger 42.
  • the button mechanism can be pulled to move toward the outside of the housing 6, and when the button mechanism moves outside the housing 6, the locking boss 41 of the locking member 4 is returned to the housing.
  • the button mechanism drives the linkage 3, and the linkage 3 drives the locking member 4 to unlock, so that the locking boss 41 is retracted into the housing 6.
  • the locking member 4 is installed in the housing 6 through a linear movement pair, and the linear movement direction is perpendicular to the installation and insertion direction of the circuit breaker.
  • the member 4 is arranged between the button mechanism and the limiting hole 61.
  • the locking member 4 is provided with a locking boss 41 near the upper part of the limiting hole 61, and an extension post 42 is provided at the lower part of the button mechanism.
  • One side of 41 is provided with a linkage step 43 that cooperates with the linkage member 3.
  • the elastic member is installed between the lower part of the locking member 4 and the housing 6. The elastic member makes the locking boss 41 of the locking member 4 protrude out of the limiting hole 61 After the circuit breaker is opened, when the button mechanism moves toward the outside of the housing 6, the button mechanism drives the linkage 3, the linkage 3 acts on the linkage step 43, and the locking member 4 overcomes the elastic force of the elastic member to lock The boss 41 is retracted into the housing 6.
  • the beneficial effects of this solution are as follows: First, because the locking member 4 moves in a straight line perpendicular to the installation and insertion direction A, it can effectively prevent or reduce the deformation and deformation of the locking member 4 and the cabinet sheet metal inserted into the receptor. / Or micro displacement. Second, since the direction of the force acting on the locking member 4 from the outer side surface 52 is substantially parallel to the linear movement direction when the driving member 5 is in the closing position, it is difficult to drive the locking member 4 back to the retracted position with manual pull-out force.
  • the sliding groove-slider pair can provide a great restraint force in the direction perpendicular to the horizontal movement, the cooperation of the outrigger 42 and the driving limit part 51 can provide the driving member 5 with great constraining force. Against the binding force of closing, it can effectively ensure that the circuit breaker is not accidentally closed during the plug-in operation.
  • the linkage 3 is rotatably arranged on the housing 6 and is located between the button mechanism 2 and the limiting hole 61, and the linkage 3 includes an interference
  • the button mechanism pushes the moved boss 32 to make the collision boss 31 protrude out of the limiting hole 61, and the button mechanism and the moved boss 32 resist and cooperate to make the collision
  • the boss 31 cannot be retracted into the housing 6.
  • the button mechanism releases the resisting cooperation with the driven boss 32 and gives way, and the resisting boss 31 returns to the housing.
  • the button mechanism includes a button 2, a connecting rod 7 and a driving member 5.
  • the button 2 drives the driving member 5 to move through the connecting rod 7.
  • the driving member 5 is rotatably arranged in the housing 6 and is connected to the operating mechanism 9. 2 is provided with a first driving part 20 that cooperates with the driven boss 32, the pressing button 2 drives the operating mechanism to close through the connecting rod 7 and the driving member 5, and the first driving part 20 on the button 2 passes the driven boss 32
  • the driving linkage 3 rotates counterclockwise to make the abutting boss 31 protrude out of the limit hole 61.
  • the button 2 and the driven boss 32 and the longitudinal surface 20a of the first driving part 20 (meaning Refers to the surface provided along the installation and insertion direction A) abutting, so that the abutting boss 31 cannot be retracted into the housing 6, to prevent the circuit breaker from being plugged and unplugged in the closed state, and to avoid live operation.
  • Pulling the button 2 drives the operating mechanism to open through the connecting rod 7 and the drive member 5.
  • the button mechanism is in the open position, the first driving part 20 of the button 2 and the driven boss 32 are misaligned to avoid, so that the conflicting boss 31 returns to the shell in vivo.
  • the linkage 3 can be driven by the button mechanism to rotate clockwise to retract the collision boss 31 into the housing.
  • a spring can also be set to rotate clockwise or rely on it to abut one end of the boss 31 The gravity turns clockwise.
  • the linkage 3 further includes an unlocking portion 34 that cooperates with the locking member 4 and a linkage drive portion 33 that cooperates with the button mechanism.
  • the button mechanism is driven by the linkage when it moves out of the housing 6.
  • the portion 33 drives the linkage 3 to rotate, and the unlocking portion 34 forces the locking member 4 to retract the locking boss 41 of the locking member 4 into the housing 6.
  • the center of the linkage member 3 is provided with a center of rotation, one end is close to the limiting hole 61 with an abutting boss 31, and one end and the other side is provided with a locking member 4
  • the matching unlocking portion 34 has a linkage driving portion 33 bent toward the button mechanism at the other end, and a driven boss 32 is provided between the rotation center and the abutting boss 31 on the side close to the button mechanism.
  • the button mechanism is provided with a driving part that cooperates with the linkage driving part 33.
  • the button mechanism releases the resisting cooperation with the driven boss 32 and gives way to the moving boss 32 during the opening process, and the button mechanism
  • the upper driving part pulls the linkage driving part 33 to drive the linkage 3 to rotate, so that the collision boss 31 is retracted into the housing; when the button mechanism is in the open position, the button mechanism can be pulled to move out of the housing 6, and the button mechanism faces While the outer casing 6 continues to move, the driving part continues to drive the linkage 3 to rotate, so that the unlocking part 34 exerts a retracting external force on the locking part 4 and the locking part 4 is retracted to the casing 6.
  • An embodiment is that when the button mechanism is in the opening position, the pulling button 2 drives the linkage 3 through the linkage driving portion 33 to continue to rotate clockwise, so that the unlocking portion 34 is pressed against the linkage step 43 of the locking member 4, so that the locking member
  • the locking boss 41 of 4 is retracted into the housing 6, so that the circuit breaker can be smoothly pulled out of the cabinet by pulling the button 2 after opening.
  • One embodiment is to use the boss on the button 2 as the driving part, and pull the bending part when the brake is opened to retract the collision boss 31 of the linkage 3 into the housing.
  • a return spring can also be used to make the conflicting boss 31 of the linkage 3 rotate in a direction away from the limiting hole 61. When the switch is opened, the button mechanism releases the resistive cooperation with the driven boss 32 and gives way. After that, the return spring causes the collision boss 31 of the linkage 3 to retract into the housing.
  • the button 2 of the button mechanism includes a button member 21 and an indicator member 22.
  • the indicator member 22 cooperates with the linkage member 3 to simultaneously realize the opening and closing instructions, and the locking protrusion that can drive the locking member 4 after opening.
  • the table 41 is retracted into the housing 6.
  • the indicator 22 includes a rotating shaft 221, a display end surface 223, and a driving boss 222 arranged on the rotating shaft 221.
  • the driving boss 222 is used as a driving part to cooperate with the linkage driving part 33 of the linkage 3, and the display end surface 223 is provided with
  • the button part 21 is provided with a cavity-type mounting hole 211.
  • the operation of the button part 21 The end surface is provided with an observation window 212 intersecting with the mounting hole 211.
  • the indicating member 22 is installed in the mounting hole 211 of the button member 21 through the rotating shaft 22 and can swing around the axis. The swing drives the indicating portion on the display end surface 223 to be in the observation window.
  • the corresponding opening and closing status is displayed by moving to the indicator part in the observation window 212;
  • the button 2 moves into the housing 6, and the driving boss 222 cooperates with the linkage driving part 33 to make the indicator 22 is rotated so that the area corresponding to the closing state of the indicator on the display end surface 223 corresponds to the observation window 212;
  • the button 2 moves out of the housing 6, and the driving boss 222 of the indicator 22 and the driving part of the linkage 33 cooperates, the indicator 22 rotates so that the area of the indicator on the display end surface 223 corresponding to the opening state corresponds to the observation window 212 when the opening is indicated.
  • the driving boss 222 drives the linkage 3 to rotate through the linkage driving portion 33 so that the collision boss 31 is retracted into the housing.
  • the unlocking portion 34 of the linkage 3 has not yet driven the locking member 4 to retract into the housing 6 (the unlocking portion 34). Just contact with the linkage step 43 of the locking member 4 or there is a gap); after the circuit breaker is opened, continue to pull the button 2, and when the button 2 moves out of the housing 6, the driving boss 222 drives the linkage through the linkage drive 33 3 is rotated, the unlocking part 34 applies a force to the locking member 4 to retract the locking member 4 into the housing 6.
  • the first driving portion 20 of the button 2 cooperates with the driven boss 32 of the linkage, and the collision boss 31 of the driving linkage extends out of the housing 6.
  • the indicator 22 it is also possible to drive the collision boss 31 of the linkage 3 by the indicator 22 to extend out of the housing 6, that is, when the button 2 moves into the housing 6 to drive the circuit breaker to close (see Figure 9) ,
  • the drive boss 222 of the indicator 22 cooperates with the linkage drive 33 of the linkage 3, the indicator 22 rotates so that the area of the indicator on the display end surface 223 corresponding to the closing state corresponds to the observation window 212 to indicate the closing, and at the same time
  • the linkage member 3 rotates so that the abutting boss 31 of the linkage member 3 protrudes out of the housing 6.
  • the driving boss 222 is arranged on one side of the rotating shaft 221, and the driving boss 222 extends out of the button 2 to cooperate with the linkage driving portion 33, and of course it can also be the linkage driving portion 33. It is bent into the button 2 to cooperate with the driving boss 222.
  • the driving boss 222 may not be arranged on the rotating shaft 221, for example, on the side of the connecting rod between the rotating shaft 221 and the display end surface 223.
  • the driving boss 222 of the indicator 22 is provided with a left receiving end 222b and a right receiving end 222a at intervals, and the linkage driving portion 33 of the linkage 3 is bent toward the button 2 and located at the left receiving end.
  • the inclined surface of the left receiving end 222b is acted on by the resistance of the linkage driving part 33 and rotates counterclockwise.
  • the observation window 212 can be viewed
  • the closing indicator of the corresponding color of the indicating part on the display end surface 223 is displayed. By moving to the color block color in the observation window 212, the corresponding opening and closing state is displayed.
  • the solution has a simple structure and can be combined with it to simplify the unlocking structure.
  • the right receiving end 222a of the indicating member acts on the right side of the linkage driving part 33 of the linkage 3.
  • the linkage 3 is forced to rotate clockwise around the axis to make the linkage 3
  • the conflicting boss 31 returns to the housing, and the indicator 22 rotates clockwise.
  • the opening indicator of the indicator on the display end surface 223 can be displayed in the observation window 212.
  • the unlocking portion 34 of the linkage 3 and the locking member 4 can be displayed.
  • the locking boss 41 of the locking member 4 keeps protruding out of the housing 6 just after contacting or leaving a gap.
  • a direct and fixed correspondence is formed between the extended position/retracted position of the platform 41 and the conflicting boss 31, so that the operator can intuitively grasp the current safe state of the circuit breaker.
  • the structure is simple and the number of parts is small, which provides effective support for the miniaturization and low-cost manufacturing of circuit breaker products.
  • the conflicting boss 31 is a square boss, the side surfaces on both sides of the square boss are perpendicular to the installation and insertion direction of the circuit breaker, and the side surfaces on both sides of the conflicting boss 31 are the left contour surface 31a and the right contour surface.
  • the left contour surface 31a and the right contour surface 31b are respectively perpendicular to the side wall of the limit hole 61, that is, perpendicular to the installation and insertion direction of the circuit breaker, and the left contour surface 31a is in the circuit breaker
  • the circuit breaker is prevented from being pulled out of the cabinet in the direction of pulling out from the cabinet
  • the right contour surface 31b prevents the circuit breaker from being inserted into the cabinet in the direction of inserting the circuit breaker into the cabinet
  • the right contour surface 31b is connected to the lateral end surface of the cabinet sheet metal piece inserted into the receiver.
  • the beneficial effect is that it can effectively reduce the insertion of the receptor. Deformation under force can effectively relax the fit tolerance of the inserted receptor, so as to effectively facilitate the use and reduce the cost of use.
  • the side of the moved boss 32 close to the button 2 is an inclined surface.
  • the button mechanism includes a button 2, a connecting rod 7 and a driving member 5.
  • the button 2 drives the driving member 5 to rotate through the connecting rod 7 to drive
  • the part 5 drives the operating mechanism 9 through the connecting rod 8 to perform closing/opening.
  • the button mechanism and the driving part 5 respectively have a closing position and an opening position corresponding to the closing/opening of the circuit breaker, that is: closing In the brake state, the button mechanism and the drive member 5 respectively have a determined position (closing position), in the open state, the button mechanism and the drive member 5 also have a determined position (open position); the closing position/ The opening position corresponds to the closing/opening of the movable contact 9a and the static contact 9b.
  • the housing 6 is provided with a limiting hole 61, the locking member 4 is slidably arranged at a position corresponding to the driving member 5, between the driving member 5 and the limiting hole 61, and the linkage 3 is rotatably arranged on the button 2. Between and the limiting hole 61, the linkage member 3 is arranged on the left side of the locking member 4, above the button mechanism.
  • a beneficial feature of the present invention is that when the button mechanism is in the closing position, the linkage 3 is restricted to the extended position by the button mechanism and cannot be retracted back to the retracted position.
  • the beneficial effect of this structure is that it can reliably prevent the closing insertion Unplugging means to prevent the circuit breaker from being forcibly inserted and unplugged in the closed state; due to the feature that the structure cannot return to the retracted position, the circuit breaker product's ability to resist abnormal brute force insertion and unplugging is effectively enhanced.
  • the button mechanism is in the open position, there are various technical solutions for the position of the linkage 3.
  • One of the alternative solutions is that the linkage 3 is not restricted by the button mechanism and can be switched between the extended position and the retracted position.
  • the advantage is that the structure is simple. Another optional solution, which is also a preferred solution of the present invention, is that when the button mechanism is in the open position, the linkage 3 is restricted by the button mechanism and is in the retracted position. The advantage is that it can be directly avoided.
  • the linkage 3 brings resistance to the normal insertion and removal of the circuit breaker.
  • Another advantage of the device of the present invention is that the linkage 3 is used as the unlocking member, which can simplify the structure of the unlocking mechanism, reduce the number of parts, and realize the simultaneous retracting of the linkage 3 and the drive locking member 4, so that the linkage 3 and the drive can be locked.
  • Piece 4 does not produce any resistance to the normal insertion and removal of the circuit breaker.
  • Another beneficial feature of the present invention is that when the circuit breaker is in the open state, the locking boss 41 of the locking member 4 protrudes out of the housing 6, but when it is retracted by an external force (only horizontal force The locking member 4 will not be retracted at the time, and the vertical component force in the retracting direction is required), which can be pushed back into the housing 6 by the retracted external force, that is, it does not prevent the circuit breaker from being inserted into the cabinet in the open state, but can The protective circuit breaker fell out of the cabinet due to vibration during transportation, etc.
  • Another beneficial feature of the present invention is that when the button mechanism is in the opening position, when the locking boss 41 of the locking member 4 is retracted into the housing, the locking member 4 resists the driving member 5, making the driving member 5 unable to Rotate to prevent the button mechanism from switching from the opening position to the closing position, so that the circuit breaker cannot be closed.
  • Another beneficial feature of the present invention is that when the button mechanism is in the closing position, the locking member 4 is restricted to the extended position by the driving member 5 and cannot be retracted to the retracted position. As an auxiliary mechanism, together with the linkage member 3, it can reliably prevent The circuit breaker is forcibly pulled out in the closed state. Due to the feature that the structure cannot return to the retracted position, the circuit breaker product's ability to resist abnormal brute force pulling out is effectively enhanced.
  • the locking member 4 of the present invention has the following beneficial effects: First, since the locking member 4 moves in a straight line perpendicular to the installation and insertion direction A, it can effectively prevent or reduce the force deformation of the locking member 4 and the cabinet sheet metal member inserted into the receptor. And/or micro-displacement. Second, since the direction of the force acting on the locking member 4 from the outer side surface 52 is substantially parallel to the linear movement direction when the driving member 5 is in the closing position, it is difficult to drive the locking member 4 back to the retracted position with manual pull-out force.
  • the sliding groove-slider pair can provide a great restraint force in the direction perpendicular to the linear movement, the cooperation of the outrigger 42 and the step 51 can provide the driving member 5 with great resistance to closing.
  • the binding force which can effectively ensure that the circuit breaker is not accidentally closed during the plug-in operation.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)

Abstract

一种插入式断路器，包括壳体、按钮机构和操作机构，按钮机构具有与断路器合闸/分闸状态相对应的合闸位置和分闸位置，该断路器还包括设置在壳体内的联动件和锁定件，所述联动件设有抵触凸台，锁定件设有锁定凸台；按钮机构处于合闸位置时，所述联动件的抵触凸台伸出壳体之外，且被按钮机构限制在伸出位置不能退回壳体内；按钮机构处于分闸位置时，所述联动件退回至壳体内，所述锁定件的锁定凸台伸出壳体之外，且锁定件的锁定凸台能够被缩进外力推动退回至壳体内，能可靠防止合闸插拔，避免了带电操作的风险，同时能保护断路器在运输等过程中由于震动从机柜中掉出。

Description

插入式断路器 技术领域
本发明涉及低压终端电器技术领域，特别是一种插入式断路器。
背景技术
随着网络通信技术的迅猛发展，特别是5G网络的应用普及，对于断路器有效提高电器设备安全性的要求越来越高，传统的用一个终端断路器下连接众多插座、插板的供电方式，已远远不能满足安全用电与设备保护的要求，如5G通讯设备用的终端断路器，不仅在小型化、智能化、可靠性、稳定性等性能上亟待升级提高，而且还在使用要求上拓展出了许多的匹配新结构，例如要求断路器能像插头那样方便插拔，此类新式的断路器被称之为插入式断路器，但它不属于传统的插入式、插拔式、抽屉式、万能式断路器。新式的插入式断路器的使用，不仅能为用电线路及电器设备提供断路器所具有的各种安全保护性能，同时还能满足不同电器设备对电源质量的需要，并且能使断路器以插拔的方式，便捷地装入/撤出电路。为此，插入式断路器的结构，现已发展到了各式各样，但在电器设备的小型化发展趋势下，相匹配的断路器的整体结构和操作方式，仍急需进一步改进、优化、升级。
现有的插入式断路器通常设有锁定装置来实现阻止断路器在合闸状态下被拔出，和/或在插入过程中阻止断路器合闸，但在分闸状态下通常不设置限位机构以使断路器能插入机柜，但这会在运输过程或其他类似产生震动的情况下，会导致断路器从机柜中掉出。
而且现有的锁定装置往往不能防止在合闸状态下的错误的蛮力插入或蛮力拔出。还有，现有的插入式断路器的锁定装置、固定解锁装置等机构，普遍缺失规避由插入受体结构因素所致的插拔保护功能的易失效、可靠性与稳定性差的设计。此外，现有的插入式断路器的锁定装置、固定解锁装置等机构由于尚未意识到其采用的装置结构对于插入受体选配的影响问题，导致上述的互换性、通用性及宽容度不良等问题。
再有，现有的插入式断路器锁定装置零部件多，结构复杂，功能实现繁琐，且由于安装柜体的钣金结构具有一定弹性，致使断路器在合闸状态下也能暴力装入安装机柜，存在带电操作风险，这主要是由于断路器上的插拔力的横向力(分力)导致的，例如，基于力学分析不难得出，人为作用于断路器上的插拔力是主动力，其可分解为平行于插拔方向的纵向力和垂直于插拔方向的横向力。在插拔操作过程中，如果机构抵抗插拔的内力(与插拔的纵向力相反的力，如摩擦力，弹性力等)越大，则需要的插拔力越大，即费力；反之则需要的插拔力越小，即省力，插拔操作轻松。而如果断路器上的插拔力的横向力(分力)较大时，如果该力由断路器的一个部位(或一个点)承受，由于应力集中而容易导致插入受体的变形，该变形直接关系到断路器的适配性能，因此，机构设计应尽量少采用(最好避免)所述横向力(分力)的结构，特别是能放大横向 力的结构(如锥楔、斜面、杠杆)等，但现有技术往往没有意识到这点。
发明内容
本发明的目的提供一种结构简单且安全可靠插入式断路器。
为实现上述目的，本发明采用了如下技术方案：
一种插入式断路器，包括壳体、按钮机构和操作机构，按钮机构驱动操作机构执行合闸/分闸，按钮机构具有与断路器合闸/分闸状态相对应的合闸位置和分闸位置，该断路器还包括设置在壳体内的联动件和锁定件，所述联动件设有抵触凸台，锁定件设有锁定凸台；按钮机构处于合闸位置时，所述联动件的抵触凸台伸出壳体之外，且被按钮机构限制在伸出位置不能退回壳体内；按钮机构处于分闸位置时，所述联动件退回至壳体内，所述锁定件的锁定凸台伸出壳体之外，且锁定件的锁定凸台能够被缩进外力推动退回至壳体内。
优选的，所述按钮机构处于分闸位置时，所述锁定件的锁定凸台因缩进外力退回至壳体内时，锁定件与按钮机构抵挡配合，阻止按钮机构从分闸位置切换到合闸位置。
优选的，所述按钮机构处于合闸位置时，锁定件的锁定凸台伸出壳体之外且被按钮机构限位在伸出位置不能退回壳体内。
优选的，断路器分闸后，所述按钮机构能够被拉动朝壳体外移动，按钮机构朝壳体外移动的过程中使锁定件的锁定凸台退回至壳体内。
优选的，所述按钮机构朝壳体外移动的过程中，按钮机构驱动联动件，联动件带动锁定件解锁使锁定凸台退回至壳体内。
优选的，所述联动件转动设置在壳体上，所述联动件包括与锁定件配合的解锁部及与按钮机构配合联动件驱动部，按钮机构向壳体外移动时通过联动件驱动部带动联动件转动，解锁部对锁定件施力使锁定件的锁定凸台退回至壳体内。
优选的，所述按钮机构包括按钮、连杆及驱动件，按钮通过连杆带动驱动件动作，所述驱动件转动的设置在壳体内，且与操作机构连接。
优选的，按钮机构处于合闸位置时，锁定件的锁定凸台伸出壳体外，且驱动件的外侧面与锁定件抵挡配合使锁定件不能退回至壳体内；按钮机构处于分闸位置时，驱动件的外侧面与锁定件错位，解除抵挡配合。
优选的，所述锁定件包括外伸柱，所述驱动件包括与外伸柱配合的驱动限位部，按钮机构处于分闸位置时，驱动件的驱动限位部对着锁定件的外伸柱，锁定件的锁定凸台被退回至壳体内时，锁定件的外伸柱与驱动限位部限位配合，抵挡驱动件向合闸方向转动，阻止按钮机构从分闸位置切换到合闸位置。
优选的，所述锁定件通过弹性件安装于壳体内，弹性件安装于锁定件与壳体之间，所述弹性件使锁定件的锁定凸台伸出壳体外。
优选的，所述锁定件的锁定凸台的剖面为一个直角梯形或直角三角形，锁 定凸台包括一个直面及一个斜面，所述直面朝向断路器拉出机柜的方向且垂直于断路器的安装插入方向，所述斜面朝向断路器插入机柜的方向。
优选的，所述联动件包括抵触凸台与受动凸台，合闸过程中，按钮机构通过推动受动凸台使抵触凸台伸出壳体外，且按钮机构与受动凸台抵挡配合使抵触凸台不能退回壳体内，分闸过程中，按钮机构解除与受动凸台的抵挡配合并让位，抵触凸台退回壳体内。
优选的，所述壳体上设有限位孔，所述联动件的抵触凸台和所述锁定件的锁定凸台与同一限位孔配合。
优选的，按钮机构包括按钮、连杆及驱动件，按钮通过连杆驱动驱动件动作，所述驱动件转动的设置在壳体内，且与操作机构连接，按钮上设置有与受动凸台配合的第一驱动部，在按钮机构处于合闸位置时，按钮与受动凸台与第一驱动部抵接，在按钮机构处于分闸位置时，按钮的第一驱动部与受动凸台错位避让。
优选的，所述抵触凸台为方形凸台，所述抵触凸台包括左轮廓面和右轮廓面，在抵触凸台处于伸出位置时，左轮廓面和右轮廓面分别垂直于断路器的安装插入方向，左轮廓面在断路器从机柜拉出的方向上阻止断路器从机柜拉出，右轮廓面在断路器插入机柜的方向上阻止断路器插入机柜。
优选的，所述壳体上设有与锁定凸台配合的限位孔，所述锁定件通过直线移动副安装于壳体内，其直线移动的方向垂直于断路器的安装插入方向，所述的锁定件设置在按钮机构和限位孔之间，所述的锁定件靠近限位孔的上部设有锁定凸台，靠近按钮机构的下部设有外伸柱，在锁定凸台一侧设有联动台阶。
优选的，所述联动件中部设有转动中心，一端的一侧设有抵触凸台，一端另一侧设有与锁定件配合的解锁部，另一端设有联动件驱动部，在转动中心和抵触凸台之间靠近按钮机构的一侧设有受动凸台，按钮机构上设置与联动件驱动部配合的驱动部，在分闸过程中，按钮机构在向壳体外移动的过程中解除与受动凸台的抵挡配合并让位，且按钮机构上的驱动部拉动联动件驱动部带动联动件旋转，使抵触凸台退回壳体内；按钮机构处于分闸位置时，所述按钮机构能够被拉动朝壳体外移动，按钮机构朝壳体外继续移动的过程中驱动部继续带动联动件旋转，解锁部给锁定件施加缩进外力，锁定件退回至壳体。
本发明的插入式断路器，包括断路器壳体、安装在断路器壳体内部的锁定件、联动件和按钮机构，在按钮机构处于合闸位置时，联动件的抵触凸台被按钮机构限制在伸出位置且不能退回到缩进位置，能可靠防止合闸插拔，避免了带电操作的风险；而且，在断路器处于分闸状态时，联动件的抵触凸台退回到壳体内部，所述锁定件的锁定凸台伸出壳体之外，但当其受到缩进外力时能够被缩进外力推动退回至壳体内，即不防止断路器在分闸状态下插入机柜，又能保护断路器在运输等过程中由于震动从机柜中掉出。
此外，所述按钮机构处于分闸位置时，所述锁定件的锁定凸台退回至壳体内时，锁定件对按钮机构抵挡，阻止按钮机构从分闸位置切换到合闸位置，使断路器无法合闸，使断路器在未安装到机柜正确的工作位置时无法合闸，仅当 断路器安装至正确工位时，按钮机构可正常分合闸。
此外，所述按钮机构处于合闸位置时，锁定件被驱动件限制在伸出位置且不能退回到缩进位置，作为辅助机构与联动件一起能可靠防止断路器在合闸状态下被强行拔出，由于结构提供的不能退回到缩进位置的特点，有效增强了断路器产品对抗非正常的蛮力拔出的能力。
此外，所述按钮机构处于分闸位置时，需要拆下断路器时，通过联动件解锁定件，使锁定件的锁定凸台退回壳体内，使断路器从安装机柜中安全拔出。
附图说明
图1是本发明的插入式断路器的整体结构示意图。
图2是图1中按钮机构、联动件和锁定件的结构示意图。
图3是本发明联动件及手柄和锁定件的局部放大示意图。
图4是插入式断路器在安装过程中的防带电插入状态的结构状态示意图。
图5是插入式断路器在防合闸拔出状态的结构状态示意图。
图6是联动件及锁定件和手柄在正确安装且合闸状态的局部放大示意图。
图7是按钮机构的分合闸指示与解锁机构的局部放大示意图。
图8是分合闸指示与解锁机构在分闸状态的局部放大示意图。
图9是分合闸指示与解锁机构在合闸状态的局部放大示意图。
图10是分合闸指示与解锁机构在分闸拆出状态的整体结构示意图。
图11是本发明联动件和壳体具体实施方式的结构示意图。
具体实施方式
以下结合附图1至11给出的实施例，进一步说明本发明的插入式断路器的具体实施方式。本发明的插入式断路器不限于以下实施例的描述。
如图1所示，本发明的插入式断路器包括壳体6、按钮机构、与按钮机构驱动连接的操作机构9，与操作机构9相连的动触头9a，与动触头9a相对设置的静触头9b，一般还包括(但不限于)短路保护机构11、灭弧装置12、过载保护机构14、出线连接装置13、进线连接装置1a、1b及其它断路器所具有的零部件(图中未示出)，按钮机构驱动操作机构9带动动触头与静触头接触合闸，或驱动操作机构9带动动触头与静触头分离分闸，按钮机构具有与断路器合闸/分闸状态相对应的合闸位置和分闸位置。
如图1-2所示，所述插入式断路器内还设有锁定装置，在壳体6上设有与锁定装置配合的限位孔61，在插入式断路器所插入受体的机柜钣金件B上设有机柜限位孔B0，当插入式断路器安装至工作位置时，插入式断路器的限位孔61与机柜限位孔B0对应，当插入式断路器未安装至工作位置时，插入式断路器的限位孔61与机柜限位孔B0错位，机柜钣金件B会遮挡机柜限位孔B0，这为本领域的现有技术，在此不再赘述。
如图1、4-5所示，本发明的插入式断路器，包括设有限位孔61的壳体6、 按钮机构和操作机构9，按钮机构驱动操作机构9执行合闸/分闸，按钮机构具有与断路器合闸/分闸状态相对应的合闸位置和分闸位置。所述按钮机构包括按钮2、连杆7及驱动件5，按钮2通过连杆7驱动驱动件5动作，所述驱动件5转动的设置在壳体6内，且与操作机构9连接；按压按钮2，按钮2通过连杆7带动驱动件5向一侧转动，驱动件5通过U型杆8带动操作机构9带动动触头9a与静触头9b接触实现合闸，拉拔按钮2，按钮2通过连杆7带动驱动件5向另一侧转动，驱动件5通过U型杆8带动操作机构9带动动触头9a与静触头分离实现分闸。所述驱动件5功能近似于传统小型断路器的手柄，操作机构通常包括与动触头9a连接的触头支持、锁扣和跳扣，短路保护机构11和过载保护机构14与操作机构的锁扣对应设置，出现短路或过载时，分别作用在锁扣上使操作机构脱扣使断路器分闸实现保护。
本发明的一个改进点在于，所述断路器还包括锁定装置，所述锁定装置包括设置在壳体6内的联动件3和锁定件4，所述联动件3设有抵触凸台31，锁定件4设有与限位孔61对应设置的锁定凸台41；按钮机构处于合闸位置时，所述联动件3的抵触凸台31伸出壳体6之外，且被按钮机构2限制在伸出位置不能退回壳体内；按钮机构处于分闸位置时，所述联动件3退回至壳体6内，所述锁定件4的锁定凸台41伸出壳体6的限位孔61之外，给锁定件4施加缩进外力后，锁定件4能够被缩进外力推动退回至壳体6内。一种实施方式为，所述联动件3的抵触凸台31与壳体6上的第二限位孔对应设置，第二限位孔与限位孔61并排设置，按钮机构处于合闸位置时，抵触凸台31伸出壳体6的第二限位孔之外。作为另一种优选实施例，所述第二限位孔与限位孔61为同一限位孔，抵触凸台31与锁定凸台41公用同一限位孔61。本实施例中采用抵触凸台31与锁定凸台41共用同一限位孔61的方案。
如图4、11所示，断路器在安装前合闸，所述联动件3被按钮2的第一驱动部20驱动逆时针转动，所述联动件3的抵触凸台31伸出壳体6的限位孔61之外，且被按钮2的第一驱动部20抵顶限制在伸出位置不能退回壳体内，此时将断路器再装入柜体内时，所述抵触凸台31的右轮廓面31b与机柜钣金件的横向端面B1抵触配合，断路器无法安装至工作位置，避免了带电操作，提高了安全性。
如图5所示，为断路器正确安装且合闸的情况，所述联动件3的抵触凸台31伸出壳体6的限位孔61之外，且被按钮2的第一驱动部20抵顶限制在伸出位置不能退回壳体内，所述抵触凸台31的左轮廓面31a与机柜钣金件的机柜限位孔B0的一个孔壁面B2抵触，此时，向外拉动断路器，断路器无法从工作位置拉出，避免了带电操作，提高了安全性。
如图1、6所示，所述锁定件4通过弹性件安装于壳体6内，锁定件4设有与限位孔61相对设置的锁定凸台41，弹性件安装于锁定件4与壳体6之间，所述的锁定件4具有伸出与缩进两个工作位置，所述弹性件使锁定件4的锁定凸台41伸出限位孔61外，断路器分闸时，给锁定件4施加缩进外力后，锁定件4克服弹性件的偏置力使锁定凸台41退回至壳体内。通过使锁定件4的锁定凸台41在分闸时伸出限位孔，可以有效防止断路器因运输等原因震动掉出 机柜，同时由于给锁定件4施加缩进外力能使锁定凸台41退回至壳体内，使得在分闸状态下，断路器插入机柜时，锁定件4的锁定凸台41在机柜钣金件施加的挤压外力作用下退回至壳体内，使断路器能够顺利插入机柜内。优选的，所述锁定件4伸出限位孔61外的锁定凸台41的剖面为一个直角梯形或直角三角形，锁定凸台41包括一个垂直限位孔61的侧壁的直面及一个斜面，所述直面朝向断路器拉出机柜的方向，所述斜面朝向断路器插入机柜的方向，使得分闸时断路器易于插入机柜。所述弹性件为压簧10，当然，弹性件也可以为扭簧或片簧等其它弹性件。
进一步优选的，如图2所示，所述按钮机构处于分闸位置时，给锁定件4施加缩进外力后，所述锁定件4的锁定凸台41退回至壳体内时，锁定件4与按钮机构抵挡配合，阻止按钮机构从分闸位置切换到合闸位置，使插入式断路器在安装到机柜的过程中不能合闸，按钮2无法按压到位，避免带电操作。如图3所示的优选实施例，所述锁定件4还包括外伸柱42，所述驱动件5包括与外伸柱42配合的驱动限位部51，本实施例中所述驱动限位部51为设置在驱动件5侧壁上的台阶，当然也可以为设置在驱动件5上的凹槽或凸起。按钮机构处于分闸位置时，驱动件5的驱动限位部51转到对着锁定件4的外伸柱42位置，插入式断路器插入但未安装至工作位置时，插入式断路器的限位孔61与机柜限位孔B0错位，锁定件4的锁定凸台41被机柜钣金件施加的挤压外力作用下退回至壳体内，锁定件4的外伸柱42伸入驱动限位部51，与驱动限位部51限位配合，抵挡驱动件5向合闸方向转动，阻止按钮机构从合闸位置切换到合闸位置，使插入式断路器在安装到机柜的安装位的过程中不能合闸，避免带电操作。本实施例中，锁定件4与驱动件5抵挡配合，阻止按钮机构从分闸位置切换到合闸位置，其布局结构更加合理，占用空间小。当然，锁定件4也可以与按钮2或连杆7抵挡配合，例如通过与按钮2上的凸台或卡槽限位使按钮2无法向断路器内按压合闸；通过与连杆7上延伸的弯钩抵挡配合，使连杆7无法向合闸方向动作。
进一步优选的，如图5所示，所述按钮机构处于合闸位置时，锁定件4的锁定凸台41伸出壳体6的限位孔61之外且被按钮机构限位在伸出位置不能退回壳体内，用于辅助联动件3，阻止断路器在合闸状态下插入机柜和从机柜中拔出(锁定件4起到辅助作用，由于锁定件的锁定凸台41的斜面412与断路器外表面呈一定倾角，即使锁定凸台41始终显露在外，由于柜体钣金件结构存在一定弹性，仍有可能在合闸情况下强行推入断路器，造成安全隐患)。一种优选的实施例，所述驱动件5具有外侧面52，按钮机构处于合闸位置时，锁定件4的锁定凸台41伸出壳体6外，且驱动件5的驱动限位部51转开与外伸柱42错位，使驱动件5的外侧面52转动到与锁定件4的外伸柱42抵挡配合的位置，使锁定件4不能退回至壳体6内；按钮机构处于分闸位置时，驱动件5的外侧面52与锁定件4错位，解除抵挡配合，此时驱动件5的驱动限位部51转到与外伸柱42对应的位置。
进一步优选的，所述断路器分闸后，所述按钮机构能够被拉动朝壳体6外移动，按钮机构朝壳体6外移动的过程中使锁定件4的锁定凸台41退回至壳 体6内。优选的，所述按钮机构朝壳体6外移动的过程中，按钮机构驱动联动件3，联动件3带动锁定件4解锁使锁定凸台41退回至壳体6内。如图3所示，所述锁定件4的优选实施例，所述锁定件4通过直线移动副安装于壳体6内，其直线移动的方向垂直于断路器的安装插入方向，所述的锁定件4设置在按钮机构和限位孔61之间，所述的锁定件4靠近限位孔61的上部设有锁定凸台41，靠近按钮机构的下部设有外伸柱42，在锁定凸台41一侧设有与联动件3配合的联动台阶43，弹性件安装于锁定件4下部与壳体6之间，所述弹性件使锁定件4的锁定凸台41伸出限位孔61外，所述断路器分闸后，所述按钮机构朝壳体6外移动的过程中，按钮机构驱动联动件3，联动件3作用在联动台阶43上，锁定件4克服弹性件的弹力使锁定凸台41退回至壳体6内。显然，该方案的有益效果在于：第一，由于锁定件4沿垂直于安装插入方向A直线移动，因此能有效防止或减小锁定件4和插入受体的机柜钣金件的受力变形和/或微位移。第二，由于在驱动件5处于合闸位置时，外侧面52作用于锁定件4的力的方向与其直线移动方向基本平行，因此人为拔出蛮力难以驱使锁定件4退回到缩进位置。第三，由于滑槽—滑块副能在其垂直于水平移动的方向上提供极大的约束力，因此外伸柱42与驱动限位部51的配合，能为驱动件5提供极大的反抗合闸的约束力，从而能有效确保在插拔操作过程中断路器不被意外合闸。
如图1、6所示，所述联动件3的优选实施例，所述联动件3转动设置在壳体6上，位于按钮机构2和限位孔61之间，所述联动件3包括抵触凸台31与受动凸台32，合闸过程中，按钮机构通过推动受动凸台32使抵触凸台31伸出限位孔61外，且按钮机构与受动凸台32抵挡配合使抵触凸台31不能退回壳体6内，分闸过程中，按钮机构解除与受动凸台32的抵挡配合并让位，抵触凸台31退回壳体内。所述按钮机构包括按钮2、连杆7及驱动件5，按钮2通过连杆7驱动驱动件5动作，所述驱动件5转动的设置在壳体6内，且与操作机构9连接，按钮2上设置有与受动凸台32配合的第一驱动部20，按压按钮2通过连杆7和驱动件5驱动操作机构合闸，按钮2上的第一驱动部20通过受动凸台32驱动联动件3逆时针转动，使抵触凸台31伸出限位孔61外，在按钮机构处于合闸位置时，按钮2与受动凸台32与第一驱动部20的纵向面20a(意指沿安装插入方向A设置的面)抵接，使抵触凸台31不能退回壳体6内，防止合闸状态断路器的插拔，避免带电操作。拉动按钮2通过连杆7和驱动件5驱动操作机构分闸，在按钮机构处于分闸位置时，按钮2的第一驱动部20与受动凸台32错位避让，使抵触凸台31退回壳体内。在按钮机构处于分闸位置时，所述联动件3可以由按钮机构驱动顺时针转动使抵触凸台31退回壳体内，当然也可以设置弹簧使其顺时针转动，或者依靠其抵触凸台31一端的重力顺时针转动。
优选的，所述联动件3还包括与锁定件4配合的解锁部34及与按钮机构配合的联动件驱动部33，断路器分闸后，按钮机构向壳体6外移动时通过联动件驱动部33带动联动件3转动，解锁部34对锁定件4施力使锁定件4的锁定凸台41退回至壳体6内。具体的，所述联动件3的优选实施例，所述联动件3中部设有转动中心，一端靠近限位孔61的一侧设有抵触凸台31，一端另一侧 设有与锁定件4配合的解锁部34，另一端设有向按钮机构弯折的联动件驱动部33，在转动中心和抵触凸台31之间靠近按钮机构的一侧设有受动凸台32。按钮机构上设置与联动件驱动部33配合的驱动部，在分闸过程中，按钮机构在向壳体6外移动的过程中解除与受动凸台32的抵挡配合并让位，且按钮机构上的驱动部拉动联动件驱动部33带动联动件3旋转，使抵触凸台31退回壳体内；按钮机构处于分闸位置时，所述按钮机构能够被拉动朝壳体6外移动，按钮机构朝壳体6外继续移动的过程中驱动部继续带动联动件3旋转，使解锁部34给锁定件4施加缩进外力，锁定件4退回至壳体6。
一种实施例为，在按钮机构处于分闸位置时，拉动按钮2通过联动件驱动部33驱动联动件3继续顺时针转动，使解锁部34压在锁定件4的联动台阶43，使锁定件4的锁定凸台41退回至壳体6内，使分闸后通过拉动按钮2能够顺利的将断路器从机柜中拔出。一种实施例为通过按钮2上的凸台作为驱动部，在分闸时拉动折弯部使联动件3的抵触凸台31退回壳体内。另外一种实施例，还可以使用复位弹簧，使联动件3的抵触凸台31向远离限位孔61的方向转动，在分闸时按钮机构解除与受动凸台32的抵挡配合并让位后，复位弹簧使联动件3的抵触凸台31退回壳体内。
作为优选的实施例，所述按钮机构的按钮2包括按钮件21和指示件22，通过指示件22与联动件3配合同时实现分合闸指示，以及分闸后能够驱动锁定件4的锁定凸台41退回至壳体6内。所述的指示件22包括转轴221、显示端面223和设置在转轴221上的驱动凸台222，通过驱动凸台222作为驱动部与联动件3的联动件驱动部33配合，显示端面223上设有用作分合闸标识的指示部，指示部上设有用作分合闸标识的对应颜色色块或文字，所述的按钮件21内部设有空腔式的安装孔211，按钮件21的操作端面上设有与安装孔211相贯通的观察窗口212，指示件22通过转轴22安装在按钮件21的安装孔211内并可绕轴摆动，该摆动带动显示端面223上的指示部在观察窗口212下移动，通过移动到观察窗口212内的指示部显示对应分合闸状态；断路器合闸时，按钮2向壳体6内移动，驱动凸台222与联动件驱动部33配合使指示件22转动，使显示端面223上指示部对应合闸状态的区域与观察窗口212对应；断路器分闸时，按钮2向壳体6外移动，指示件22的驱动凸台222与联动件驱动部33配合，指示件22转动使显示端面223上指示部对应分闸状态的区域与观察窗口212对应指分闸时。同时，驱动凸台222通过联动件驱动部33带动联动件3转动使抵触凸台31退回壳体内，此时联动件3的解锁部34尚未驱动锁定件4退回至壳体6内(解锁部34与锁定件4的联动台阶43刚接触或者留有间隙)；断路器分闸后，继续拉动按钮2，按钮2向壳体6外移动时，驱动凸台222通过联动件驱动部33带动联动件3转动，解锁部34对锁定件4施力使锁定件4退回至壳体6内。
本实施例中，断路器合闸时，由按钮2的第一驱动部20与联动件的受动凸台32配合，驱动联动件的抵触凸台31伸出壳体6外。作为另一种实施例，也可以由指示件22驱动联动件3的抵触凸台31伸出壳体6之外，即按钮2向壳体6内移动驱动断路器合闸时(参见图9)，指示件22的驱动凸台222与联 动件3的联动件驱动部33配合，指示件22转动使显示端面223上指示部对应合闸状态的区域与观察窗口212对应指示合闸时，同时使联动件3转动，使联动件3的抵触凸台31伸出壳体6之外。
具体如图7-图9所示，驱动凸台222设置在转轴221的一侧，驱动凸台222伸出位于按钮2之外与联动件驱动部33配合，当然也可以是联动件驱动部33弯折伸入按钮2内与驱动凸台222配合，另外驱动凸台222也可以不设置在转轴221上，例如设置在转轴221与显示端面223之间的连接杆一侧。
优选的，所述指示件22的驱动凸台222上间隔设置有左受动端222b和右受动端222a，联动件3的联动件驱动部33向按钮2一侧弯折位于左受动端222b和右受动端222a之间，按压按钮2向断路器内部做合闸操作时，左受动端222b的斜面受联动件驱动部33阻力作用，逆时针转动，此时可在观察窗口212显示显示端面223上指示部的对应颜色的合闸标识。通过移动到观察窗口212内的色块颜色显示对应分合闸状态。该方案结构简单，且可与之结合简化解锁结构。拉动按压按钮2做分闸操作时，指示件右受动端222a作用在联动3的联动件驱动部33的右侧面上，所述联动件3受力绕轴顺时针转动使联动件3的抵触凸台31退回壳体内，指示件22顺时针转动，此时可在观察窗口212显示显示端面223上指示部的对应颜色的分闸标识，此时联动件3的解锁部34与锁定件4刚接触或者留有间隙，锁定件4的锁定凸台41保持伸出壳体6之外。
如图8所示，分闸状态下，当需要将断路器从安装机柜中拆出时，继续向远离断路器的方向拉动按钮机构，指示件右受动端222a作用在联动3的联动件驱动部33的右侧面上，所述联动件3受力绕轴顺时针转动，所述解锁部34作用在锁定件4的联动部43上，锁定凸台41克服弹簧10的推力滑动缩回断路器内部，锁定凸台41与机柜的锁定解除，断路器可从工作位置拆出，其有益效果在于：第一，指示显示与插拔安全保护直接联动，使合闸/分闸显示与锁定凸台41和抵触凸台31的伸出位置/缩进位置之间形成直接、固定的对应关系，以便操作者直观地掌握断路器当前所处的安全状态。第二，为抵触凸台31和锁定件4上的锁定凸台41从同一个共用限位孔61伸出/缩进提供实现的可能，在于可降低插入受体的制造难度，便于断路器产品与插入受体之间的互换和通用，以降低用户的使用成本。第三，结构简单，零件数少，为断路器产品的小型化及低成本制造提供了有效支持。
优选的，所述抵触凸台31为方形凸台，方形凸台两侧的侧面均垂直于断路器的安装插入方向，所述抵触凸台31两侧的侧面为左轮廓面31a和右轮廓面31b，在抵触凸台31处于伸出位置时，左轮廓面31a和右轮廓面31b分别垂直于限位孔61的侧壁，即垂直于断路器的安装插入方向，左轮廓面31a在断路器从机柜拉出的方向上阻止断路器从机柜拉出，右轮廓面31b在断路器插入机柜的方向上阻止断路器插入机柜，其中右轮廓面31b与插入受体的机柜钣金件的横向端面B1抵触配合以阻止断路器的插入，而左轮廓面31a与插入受体的机柜钣金件的限位孔B0的一个孔壁面B2抵触配合，其有益效果在于：能有效减小插入受体的受力变形，可有效放宽插入受体的适配宽容度，以有效方便使用并降低使用成本。优选的，所述受动凸台32靠近按钮2的一侧为斜面。
具体的，如图1所示的本发明的插入式断路器的优选实施例，所述按钮机构包括按钮2、连杆7及驱动件5，按钮2通过连杆7驱动驱动件5转动，驱动件5通过连杆8驱动操作机构9执行合闸/分闸，所述按钮机构和驱动件5分别具有与断路器合闸/分闸相对应的合闸位置和分闸位置，即：在合闸状态下，按钮机构和驱动件5分别具有确定的位置(合闸位置)，在分闸状态下，按钮机构和驱动件5分别也具有确定的位置(分闸位置)；该合闸位置/分闸位置与动触头9a和静触头9b的闭合/断开相对应。
所述壳体6上设有限位孔61，所述锁定件4滑动设置在与驱动件5对应的位置，位于驱动件5和限位孔61之间，所述联动件3转动设置在按钮2和限位孔61之间，所述联动件3设置在锁定件4的左侧，位于按钮机构的上方。
本发明的一个有益的特点是，在按钮机构处于合闸位置时，联动件3被按钮机构限制在伸出位置且不能退回到缩进位置，该结构的有益效果在于：能可靠防止合闸插拔，即防止断路器在合闸状态下被强行插拔；由于该结构提供的不能退回到缩进位置的特点，有效增强了断路器产品对抗非正常的蛮力插拔的能力。而在按钮机构处于分闸位置时，联动件3所处的位置可有多种技术方案。其中一种可选用的方案是，联动件3不受按钮机构的限制并可在伸出位置与缩进位置之间相互转换，其优点是结构简单。另一种可选用的方案，也是本发明优选的方案是，所述的联动件3在按钮机构处于分闸位置时，受按钮机构的限制并处在缩进位置，其优点在于：可直接避免联动件3给断路器的正常插拔带来阻力。本发明装置的另一个优点在于，用联动件3充当解锁件，可简化解锁机构的结构，减少零件数量，并且可实现联动件3和驱动锁定件4同时缩进，使联动件3和驱动锁定件4对断路器的正常插拔不产生任何阻力。
本发明的另一个有益的特点是，在断路器处于分闸状态时，所述锁定件4的锁定凸台41伸出壳体6之外，但当其受到缩进外力时(仅有水平力时并不会使锁定件4缩进，需要有缩进方向的垂直分力)，能够被缩进外力推动退回至壳体6内，即不防止断路器在分闸状态下插入机柜，又能保护断路器在运输等过程中由于收到震动从机柜中掉出。本发明的另一个有益的特点是，所述按钮机构处于分闸位置时，所述锁定件4的锁定凸台41退回至壳体内时，锁定件4对驱动件5抵挡，使驱动件5无法转动，阻止按钮机构从分闸位置切换到合闸位置，使断路器无法合闸。本发明的另一个有益的特点是，在按钮机构处于合闸位置时，锁定件4被驱动件5限制在伸出位置且不能退回到缩进位置，作为辅助机构与联动件3一起能可靠防止断路器在合闸状态下被强行拔出，由于结构提供的不能退回到缩进位置的特点，有效增强了断路器产品对抗非正常的蛮力拔出的能力。
本发明锁定件4具有以下有益效果：第一，由于锁定件4沿垂直于安装插入方向A直线移动，因此能有效防止或减小锁定件4和插入受体的机柜钣金件的受力变形和/或微位移。第二，由于在驱动件5处于合闸位置时，外侧面52作用于锁定件4的力的方向与其直线移动方向基本平行，因此人为拔出蛮力难以驱使锁定件4退回到缩进位置。第三，由于滑槽—滑块副能在其垂直于直线移动的方向上提供极大的约束力，因此外伸柱42与台阶51的配合，能为驱动 件5提供极大的反抗合闸的约束力，从而能有效确保在插拔操作过程中断路器不被意外合闸。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (17)

  1. 一种插入式断路器，包括壳体(6)、按钮机构和操作机构(9)，按钮机构驱动操作机构(9)执行合闸/分闸，按钮机构具有与断路器合闸/分闸状态相对应的合闸位置和分闸位置，其特征在于：该断路器还包括设置在壳体(6)内的联动件(3)和锁定件(4)，所述联动件(3)设有抵触凸台(31)，锁定件(4)设有锁定凸台(41)；
    按钮机构处于合闸位置时，所述联动件(3)的抵触凸台(31)伸出壳体(6)之外，且被按钮机构(2)限制在伸出位置不能退回壳体内；
    按钮机构处于分闸位置时，所述联动件(3)退回至壳体(6)内，所述锁定件(4)的锁定凸台(41)伸出壳体(6)之外，且锁定件(4)的锁定凸台(41)能够被缩进外力推动退回至壳体(6)内。
  2. 根据权利要求1所述的插入式断路器，其特征在于：所述按钮机构处于分闸位置时，所述锁定件(4)的锁定凸台(41)因缩进外力退回至壳体(6)内时，锁定件(4)与按钮机构抵挡配合，阻止按钮机构从分闸位置切换到合闸位置。
  3. 根据权利要求1所述的插入式断路器，其特征在于：所述按钮机构处于合闸位置时，锁定件(4)的锁定凸台(41)伸出壳体之外且被按钮机构限位在伸出位置不能退回壳体内。
  4. 根据权利要求1所述的插入式断路器，其特征在于：断路器分闸后，所述按钮机构能够被拉动朝壳体(6)外移动，按钮机构朝壳体(6)外移动的过程中使锁定件(4)的锁定凸台(41)退回至壳体(6)内。
  5. 根据权利要求4所述的插入式断路器，其特征在于：所述按钮机构朝壳体(6)外移动的过程中，按钮机构驱动联动件(3)，联动件(3)带动锁定件(4)解锁使锁定凸台(41)退回至壳体(6)内。
  6. 根据权利要求5所述的插入式断路器，其特征在于：所述联动件(3)转动设置在壳体(6)上，所述联动件(3)包括与锁定件(4)配合的解锁部(34)及与按钮机构配合联动件驱动部(33)，按钮机构向壳体(6)外移动时通过联动件驱动部(33)带动联动件(3)转动，解锁部(34)对锁定件(4)施力使锁定件(4)的锁定凸台(41)退回至壳体(6)内。
  7. 根据权利要求1所述的插入式断路器，其特征在于：所述按钮机构包括按钮(2)、连杆(7)及驱动件(5)，按钮(2)通过连杆(7)带动驱动件(5)动作，所述驱动件(5)转动的设置在壳体(6)内，且与操作机构(9)连接。
  8. 根据权利要求7所述的插入式断路器，其特征在于：按钮机构处于合闸位置时，锁定件(4)的锁定凸台(41)伸出壳体(6)外，且驱动件(5) 的外侧面(52)与锁定件(4)抵挡配合使锁定件(4)不能退回至壳体(6)内；按钮机构处于分闸位置时，驱动件(5)的外侧面(52)与锁定件(4)错位，解除抵挡配合。
  9. 根据权利要求7所述的插入式断路器，其特征在于：所述锁定件(4)包括外伸柱(42)，所述驱动件(5)包括与外伸柱(42)配合的驱动限位部(51)，按钮机构处于分闸位置时，驱动件(5)的驱动限位部(51)对着锁定件(4)的外伸柱(42)，锁定件(4)的锁定凸台(41)被退回至壳体(6)内时，锁定件(4)的外伸柱(42)与驱动限位部(51)限位配合，抵挡驱动件(5)向合闸方向转动，阻止按钮机构从分闸位置切换到合闸位置。
  10. 根据权利要求1所述的插入式断路器，其特征在于：所述锁定件(4)通过弹性件安装于壳体(6)内，弹性件安装于锁定件(4)与壳体(6)之间，所述弹性件使锁定件(4)的锁定凸台(41)伸出壳体外。
  11. 根据权利要求10所述的插入式断路器，其特征在于：所述锁定件(4)的锁定凸台(41)的剖面为一个直角梯形或直角三角形，锁定凸台(41)包括一个直面及一个斜面，所述直面朝向断路器拉出机柜的方向且垂直于断路器的安装插入方向，所述斜面朝向断路器插入机柜的方向。
  12. 根据权利要求1所述的插入式断路器，其特征在于：所述联动件(3)包括抵触凸台(31)与受动凸台(32)，合闸过程中，按钮机构通过推动受动凸台(32)使抵触凸台(31)伸出壳体外，且按钮机构与受动凸台(32)抵挡配合使抵触凸台(31)不能退回壳体(6)内，分闸过程中，按钮机构解除与受动凸台(32)的抵挡配合并让位，抵触凸台(31)退回壳体内。
  13. 根据权利要求1所述的插入式断路器，其特征在于：所述壳体(6)上设有限位孔(61)，所述联动件(3)的抵触凸台(31)和所述锁定件(4)的锁定凸台(41)与同一限位孔(61)配合。
  14. 根据权利要求12所述的插入式断路器，其特征在于：按钮机构包括按钮(2)、连杆(7)及驱动件(5)，按钮(2)通过连杆(7)驱动驱动件(5)动作，所述驱动件(5)转动的设置在壳体(6)内，且与操作机构(9)连接，按钮(2)上设置有与受动凸台(32)配合的第一驱动部(20)，在按钮机构处于合闸位置时，按钮(2)与受动凸台(32)与第一驱动部(20)抵接，在按钮机构处于分闸位置时，按钮(2)的第一驱动部(20)与受动凸台(32)错位避让。
  15. 根据权利要求12所述的插入式断路器，其特征在于：所述抵触凸台(31)为方形凸台，所述抵触凸台(31)包括左轮廓面(31a)和右轮廓面(31b)，在抵触凸台(31)处于伸出位置时，左轮廓面(31a)和右轮廓面(31b)分别垂直于断路器的安装插入方向，左轮廓面(31a)在断路器从机柜拉出的方向上阻止断路器从机柜拉出，右轮廓面(31b)在断路器插入机柜的方向上阻止断路器插入机柜。
  16. 根据权利要求1所述的插入式断路器，其特征在于：所述壳体(6)上设有与锁定凸台(41)配合的限位孔(61)，所述锁定件(4)通过直线移 动副安装于壳体(6)内，其直线移动的方向垂直于断路器的安装插入方向，所述的锁定件(4)设置在按钮机构和限位孔(61)之间，所述的锁定件(4)靠近限位孔(61)的上部设有锁定凸台(41)，靠近按钮机构的下部设有外伸柱(42)，在锁定凸台(41)一侧设有联动台阶(43)。
  17. 根据权利要求12所述的插入式断路器，其特征在于：所述联动件(3)中部设有转动中心，一端的一侧设有抵触凸台(31)，一端另一侧设有与锁定件(4)配合的解锁部(34)，另一端设有联动件驱动部(33)，在转动中心和抵触凸台(31)之间靠近按钮机构的一侧设有受动凸台(32)，按钮机构上设置与联动件驱动部(33)配合的驱动部，在分闸过程中，按钮机构在向壳体(6)外移动的过程中解除与受动凸台(32)的抵挡配合并让位，且按钮机构上的驱动部拉动联动件驱动部(33)带动联动件(3)旋转，使抵触凸台(31)退回壳体内；按钮机构处于分闸位置时，所述按钮机构能够被拉动朝壳体(6)外移动，按钮机构朝壳体(6)外继续移动的过程中驱动部继续带动联动件(3)旋转，解锁部(34)给锁定件(4)施加缩进外力，锁定件(4)退回至壳体(6)。
PCT/CN2020/128877 2019-11-15 2020-11-14 插入式断路器 WO2021093878A1 (zh)

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