CN111916317B - breaker - Google Patents
breakerInfo
- Publication number
- CN111916317B CN111916317B CN202010766961.9A CN202010766961A CN111916317B CN 111916317 B CN111916317 B CN 111916317B CN 202010766961 A CN202010766961 A CN 202010766961A CN 111916317 B CN111916317 B CN 111916317B
- Authority
- CN
- China
- Prior art keywords
- gear
- circuit breaker
- output gear
- driven
- transmission
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
Landscapes
- Mechanisms For Operating Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
本发明涉及低压电器领域，具体涉及一种断路器，其操作机构与动触头驱动相连，按钮机构与操作机构驱动相连，电动操作装置与操作机构驱动配合，按钮机构和电动操作装置均能通过操作机构使断路器合闸/分闸；所述电动操作装置包括依次驱动相连的电机、传动齿轮组和驱动齿轮件，以及与驱动齿轮件3e驱动配合的离合齿轮件；所述操作机构包括传动件，传动件与离合齿轮件驱动配合；所述驱动齿轮件通过离合齿轮件驱动传动件向合闸方向转动，使断路器合闸；手动操作所述按钮机构驱动传动件向合闸方向/分闸方向转动，使断路器合闸/分闸时，驱动齿轮件始终保持静止；本发明断路器，其手动操作和电动操作相互独立，互不影响。
The present invention relates to the field of low-voltage electrical appliances, and specifically to a circuit breaker, wherein an operating mechanism is drive-connected to a moving contact, a button mechanism is drive-connected to the operating mechanism, and an electric operating device is driven in cooperation with the operating mechanism, and both the button mechanism and the electric operating device can close/open the circuit breaker through the operating mechanism; the electric operating device includes a motor, a transmission gear set and a drive gear member that are driven in sequence, and a clutch gear member that is driven and cooperated with the drive gear member 3e; the operating mechanism includes a transmission member, which is driven and cooperated with the clutch gear member; the drive gear member drives the transmission member to rotate in a closing direction through the clutch gear member, so as to close the circuit breaker; the button mechanism is manually operated to drive the transmission member to rotate in the closing direction/opening direction, so that the drive gear member always remains stationary when the circuit breaker is closed/opened; the manual operation and electric operation of the circuit breaker of the present invention are independent of each other and do not affect each other.
Description
Technical Field
The invention relates to the field of piezoelectric devices, in particular to a circuit breaker.
Background
The single chip microcomputer chip of the control circuit board of the existing partial automatic reclosing miniature circuit breaker can control the position of a gear mechanism of an electric operation device and the rotation direction of a motor, and the control circuit board of the existing partial automatic reclosing miniature circuit breaker is not provided with the single chip microcomputer chip to control the electric operation device, so that the motor always rotates in one direction to finish closing/opening operation.
The existing automatic reclosing miniature circuit breaker often causes the failure of manual operation switching-on function when the accident of sudden power failure or failure of an electric operation transmission mechanism occurs in the automatic switching-on process, has certain potential safety hazard and causes trouble to operators.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a circuit breaker, wherein manual operation and electric operation of the circuit breaker are independent from each other and are not influenced.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The circuit breaker comprises a shell 4, a button mechanism 1, an operating mechanism 2, an electric operating device 3, a moving contact 80 and a fixed contact 81 which are respectively arranged in the shell 4 and used in a matched mode, wherein the operating mechanism 2 is in driving connection with the moving contact 80, the button mechanism 1 is in driving connection with the operating mechanism 2, the electric operating device 3 is in driving connection with the operating mechanism 2, the button mechanism 1 and the electric operating device 3 can enable the circuit breaker to be switched on/off through the operating mechanism 2, the electric operating device 3 comprises a motor 3a, a transmission gear set and a driving gear piece 3e which are sequentially in driving connection, and a clutch gear piece in driving connection with the driving gear piece 3e, the operating mechanism 2 comprises a transmission piece 2a which is pivotally arranged on the shell 4 and is in driving connection with the button mechanism 1, the transmission piece 2a is in driving connection with the clutch gear piece, the driving gear piece 3e drives the transmission piece 2a to rotate in a switching-on direction through the clutch gear piece, the manual operation of the button mechanism 1 drives the transmission piece 2a to rotate in the switching-on/off direction, and the circuit breaker is enabled to always kept stationary in driving the switching-on/off state when the circuit breaker is switched on/off.
Preferably, the clutch gear member includes a first output gear 3f and a second output gear 3g which are in driving engagement, the first output gear 3f is coaxially disposed with and in driving engagement with the driving gear member 3e, the first output gear 3f is rotatable relative to the driving gear member 3e, and the second output gear 3g is coaxially linked with the transmission member 2 a.
Preferably, the first output gear 3f includes a first output gear driven portion 3f-0 and a first sector-shaped tooth portion 3f-1 that are coaxially stacked, the first output gear driven portion 3f-0 includes a first avoidance space S1, and a first closing driven surface 3f-01 is disposed at one end of the first avoidance space S1;
The driving gear member 3e comprises a middle driven gear 3e-0 meshed with the transmission gear set and a gear member driving boss 3e-1 arranged on one side of the middle driven gear 3e-0, the gear member driving boss 3e-1 is located in a first avoidance space S1, is in driving fit with a first closing driven surface 3f-01, and is provided with a first gap between the other end of the first avoidance space S1, the first avoidance space S1 is a fan-shaped space, and the fan-shaped angle of the first avoidance space S1 is larger than that of the first fan-shaped tooth part 3 f-1.
Preferably, the first output gear driven part 3f-0 has a fan-shaped structure, one side of the fan-shaped structure is a first avoiding space S1, the first closing driven surface 3f-01 is arranged on one side of the rotation center of the first output gear driven part 3f-0, and the first output gear driven part 3f-0 and the first fan-shaped tooth part 3f-1 are integrated.
Preferably, the second output gear 3g is a sector gear and is integrated with the transmission member 2a, and the second output gear 3g includes a second sector gear portion, and the second sector gear portion is disposed on a radial side wall of the transmission member 2 a.
Preferably, the gear driving boss 3e-1 is in driving fit with the button mechanism 1, and the button mechanism 1 drives the transmission member 2a to rotate in the opening direction, so that the breaker is opened.
Preferably, the clutch gear member includes a first output gear 3f coaxially linked with the driving gear member 3e and a second output gear 3g coaxially disposed and in driving engagement with the transmission member 2a, and the second output gear 3g is also in driving engagement with the first output gear 3f, and the transmission member 2a can rotate relative to the second output gear 3 g.
Preferably, the second output gear 3g comprises a second output gear shaft portion 3g-0 and a second output gear sector tooth portion 3g-1, wherein the second output gear shaft portion 3g-0 is coaxially arranged with the transmission member 2 a;
The transmission part 2a comprises a second avoidance space 2a-1 arranged at one radial end of the transmission part, and a second closing driven surface 2a-10 is arranged at one end of the second avoidance space 2a-1, wherein the second avoidance space 2a-1 is a fan-shaped space, and the fan-shaped angle of the second avoidance space is larger than that of a fan-shaped tooth part 3g-1 of the second output gear;
The second output gear sector tooth part 3g-1 is arranged in the second avoidance space 2a-1, is in driving fit with the second closing driven surface 2a-10, and is provided with a second gap between the second avoidance space 2a-1 and the other end of the second avoidance space, and the button mechanism 1 is manually operated to drive the transmission part 2a to rotate towards the closing direction/opening direction, so that the driving gear part 3e, the first output gear 3f and the second output gear 3g are all kept stationary when the circuit breaker is closed/opened.
Preferably, the driving gear member 3e comprises an intermediate driven gear 3e-0 and a gear member driving boss 3e-1, the first output gear 3f is coaxially linked with the intermediate driven gear 3e-0, the intermediate driven gear 3e-0 is meshed with a transmission gear set, the gear member driving boss 3e-1 is in driving fit with the button mechanism 1, and the button mechanism 1 drives the transmission member 2a to rotate in the opening direction, so that the circuit breaker is opened.
Preferably, the button mechanism 1 is pressed/pulled to drive the transmission member 2a to rotate in a closing direction/opening direction so as to close/open the circuit breaker, the electric operating device 3 is in driving fit with the button mechanism 1, the button mechanism 1 drives the transmission member 2a to rotate in the opening direction so as to open the circuit breaker, and the electric operating device 3 drives the gear member 3e to always rotate in the same direction when the circuit breaker is closed/opened through the operating mechanism 2.
Preferably, the button mechanism 1 comprises a button member 1a, a first connecting rod 1b, a connecting member 1c and a second connecting rod 1d which are connected in sequence in a driving manner, wherein the connecting member 1c is connected with the transmission member 2a in a driving manner through the second connecting rod 1d, and the connecting member 1c is in driving fit with a gear member driving boss 3e-1 of the electric operation device 3.
Preferably, the operating mechanism 2 further includes a transmission link 2b, a locking member 2c, a rotating plate 2d and a trip member 2e, the rotating plate 2d is pivotally disposed on the housing 4, the locking member 2c and the trip member 2e are respectively pivotally disposed on the rotating plate 2d and are in locking engagement, the transmission member 2a is in driving connection with the locking member 2c through the transmission link 2b, and the rotating plate 2d is in driving connection with the moving contact 80.
Preferably, the operating mechanism 2 further includes a transmission member return spring 2f, and the transmission member return spring 2f applies a force to the transmission member 2a to rotate the transmission member 2a in the opening direction.
Preferably, the transmission gear set includes a worm 3b, a first transmission gear 3c and a second transmission gear 3d which are sequentially meshed, the worm 3b is in driving connection with the motor 3a, and the second transmission gear 3d is meshed with the driving gear member 3 e.
According to the circuit breaker, the button mechanism 1 of the circuit breaker is manually operated to drive the transmission part 2a to rotate in the closing direction/opening direction, so that the driving gear part 3e is always kept still when the circuit breaker is closed/opened, the manual operation and the electric operation of the circuit breaker are independent, the manual operation and the electric operation of the circuit breaker are not mutually influenced, the reliability and the stability of the circuit breaker are ensured, and the user does not need to overcome the resistance of the electric operation device 3 during the manual operation, so that the operation is more labor-saving and easy.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the circuit breaker of the present invention, showing at least the structure of the first embodiment of the electrically operated device;
fig. 2 is a schematic structural view of a first embodiment of the electrically operated device of the present invention;
FIG. 3 is a schematic view of the construction of a first embodiment of the drive gear member of the present invention;
FIG. 4 is a schematic diagram of the structure of a first output gear of the present invention;
FIG. 5 is a schematic diagram of the cooperation structure of the second output gear and the transmission member of the present invention, wherein the second output gear and the transmission member are coaxially linked;
FIG. 6 is a schematic diagram of the mating structure of the drive gear member, first output gear, second output gear and transmission member of the present invention;
fig. 7 is a schematic structural view of a first embodiment of the circuit breaker of the present invention, the circuit breaker being in a breaking state;
Fig. 8 is a schematic structural view of a first embodiment of the circuit breaker of the present invention, the circuit breaker being in a closed state;
Fig. 9 is a schematic structural view of a first embodiment of the circuit breaker of the present invention, in which the moving contact and the stationary contact have not been closed during closing;
Fig. 10 is a schematic diagram of the circuit breaker of fig. 9 after closing by a button mechanism according to the present invention;
FIG. 11 is a schematic structural view of a second embodiment of the electrically operated device of the present invention and a schematic structural view of the electrically operated device in cooperation with the button mechanism and the operating mechanism;
Fig. 12 is a schematic diagram of a mating structure of a second output gear and a transmission member according to the present invention, where the transmission member can rotate relative to the second output gear.
Detailed Description
Embodiments of the circuit breaker of the present invention are further described below with reference to the examples shown in fig. 1-12. The circuit breaker of the present invention is not limited to the description of the following embodiments.
The circuit breaker comprises a shell 4, a button mechanism 1, an operating mechanism 2, an electric operating device 3, a moving contact 80 and a fixed contact 81 which are respectively arranged in the shell 4 and used in a matched mode, wherein the operating mechanism 2 is in driving connection with the moving contact 80, the button mechanism 1 is in driving connection with the operating mechanism 2, the electric operating device 3 is in driving connection with the operating mechanism 2, the button mechanism 1 and the electric operating device 3 can enable the circuit breaker to be switched on/off through the operating mechanism 2, the electric operating device 3 comprises a motor 3a, a transmission gear set and a driving gear piece 3e which are sequentially in driving connection, and a clutch gear piece in driving connection with the driving gear piece 3e, the operating mechanism 2 comprises a transmission piece 2a which is pivotally arranged on the shell 4 and is in driving connection with the button mechanism 1, the transmission piece 2a is in driving connection with the clutch gear piece, the driving gear piece 3e drives the transmission piece 2a to rotate in a switching-on direction through the clutch gear piece, the manual operation of the button mechanism 1 drives the transmission piece 2a to rotate in the switching-on/off direction, and the circuit breaker is enabled to always kept stationary in driving the switching-on/off state when the circuit breaker is switched on/off. According to the circuit breaker, the button mechanism 1 of the circuit breaker is manually operated to drive the transmission part 2a to rotate in the closing direction/opening direction, so that the driving gear part 3e is always kept still when the circuit breaker is closed/opened, the manual operation and the electric operation of the circuit breaker are independent, the manual operation and the electric operation of the circuit breaker are not mutually influenced, the reliability and the stability of the circuit breaker are ensured, and the user does not need to overcome the resistance of the electric operation device 3 during the manual operation, so that the operation is more labor-saving and easy.
Preferably, the closing direction and the opening direction are opposite to each other.
Preferably, as shown in fig. 1 and 7-10, the operating mechanism 1 is pressed/pulled to drive the transmission member 2a to rotate in the closing direction/opening direction, so that the breaker closes/opens.
Preferably, as shown in fig. 1 and 7-10, the electric operating device 3 is in driving fit with the button mechanism 1, and the electric operating device 3 drives the transmission member 2 to rotate in the opening direction through the button mechanism 1 so as to open the circuit breaker.
The circuit breaker of the present invention will be further described with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1-10, a first embodiment of the circuit breaker of the present invention is shown.
As shown in figures 1 and 7-10, the circuit breaker comprises a shell 4, a button mechanism 1, an operating mechanism 2, an electric operating device 3, a moving contact 80 and a fixed contact 81 which are respectively arranged in the shell 4, wherein the operating mechanism 2 is in driving connection with the moving contact 80 to drive the moving contact 80 to be closed/disconnected with the fixed contact 81, the button mechanism 1 is in driving connection with the operating mechanism 2, the electric operating device 3 is in driving connection with the operating mechanism 2, and both the button mechanism 1 and the electric operating device 3 can enable the circuit breaker to be closed/opened through the operating mechanism 2.
It should be noted that, according to practical needs, as shown in fig. 1, the circuit breaker of the present invention further includes a short-circuit protection mechanism 5, an overload protection mechanism 7, and an arc extinguishing chamber 6, where the short-circuit protection mechanism 5 and the overload protection mechanism 7 are respectively in driving fit with the operation mechanism 2, and when the circuit breaker has a short circuit or an overload fault, the circuit breaker is driven to trip or break, and the arc extinguishing chamber 6 is matched with the moving contact 80 and the fixed contact 81, and is used for extinguishing an arc generated when the moving contact 80 and the fixed contact 81 are closed/broken. Of course, the circuit breaker of the present invention also comprises an incoming terminal and an outgoing terminal, preferably arranged at both ends of the housing 4.
Preferably, as shown in fig. 1 and 7-10, the electric operation device 3 comprises a motor 3a, a transmission gear set, a driving gear piece 3e and a clutch gear piece in driving fit with the driving gear piece 3e, which are sequentially in driving connection, the operation mechanism 2 comprises a transmission piece 2a which is pivotally arranged on the shell 4 and is in driving connection with the button mechanism 1, the transmission piece 2a is in driving fit with the clutch gear piece, the driving gear piece 3e drives the transmission piece 2a to rotate in a closing direction through the clutch gear piece so as to close the circuit breaker, and the button mechanism 1 is manually operated so as to drive the transmission piece 2a to rotate in the closing direction/opening direction, so that the driving gear piece 3e is always kept stationary when the circuit breaker is closed/opened. Further, the closing direction and the opening direction are opposite to each other.
Specifically, as shown in fig. 1, 2 and 6-8, the closing direction is clockwise, and the opening direction is counterclockwise.
Preferably, as shown in fig. 2 and 6, the clutch gear member includes a first output gear 3f and a second output gear 3g in driving engagement, the first output gear 3f is coaxially disposed with and in driving engagement with the driving gear member 3e, the first output gear 3f is rotatable relative to the driving gear member 3e, and the second output gear 3g is coaxially coupled with the transmission member 2 a. Further, as shown in fig. 4, the first output gear 3f includes a first output gear driven portion 3f-0 and a first sector gear portion 3f-1 which are coaxially stacked, the first output gear driven portion 3f-0 includes a first avoidance space S1, one end of the first avoidance space S1 is provided with a first closing driven surface 3f-01, as shown in fig. 3, the driving gear member 3e includes a middle driven gear 3e-0 meshed with the transmission gear set and a gear member driving boss 3e-1 disposed on one side of the middle driven gear 3e-0, as shown in fig. 6, the gear member driving boss 3e-1 is located in the first avoidance space S1, and is in driving fit with the first closing driven surface 3f-01, and a first gap is provided between the other end of the first avoidance space S1, the first avoidance space S1 is a sector space, and a sector angle of the first avoidance space S1 is larger than a sector angle of the first sector gear portion 3 f-1.
Preferably, as shown in fig. 4 and 6, the first output gear driven portion 3f-0 has a fan-shaped structure, one side of the fan-shaped structure is a first avoidance space S1, and the first closing driven surface 3f-01 is disposed on one side of a rotation center of the first output gear driven portion 3 f-0. Specifically, as shown in fig. 4, the first output gear driven portion 3f-0 includes two straight side edges respectively located at two sides of a rotation center thereof, and one straight side edge is a first closing driven surface 3f-01. Further, as shown in fig. 4, the arcuate side edge of the first output gear driven portion 3f-0 and the arcuate portion of the first sector tooth portion 3f-1 are disposed opposite to each other.
Preferably, as shown in fig. 4, the first output gear driven portion 3f-0 and the first sector gear portion 3f-1 of the first output gear 3f are formed as an integral member. Of course, the first output gear driven portion 3f-0 and the first sector gear portion 3f-1 may be provided as separate and coaxially coupled components, but the number of components of the circuit breaker of the present invention is increased, so that the first output gear 3f is preferably an integral component.
Preferably, as shown in fig. 5, the second output gear 3g is a sector gear and is integrated with the transmission member 2a, and the second output gear 3g includes a second sector gear portion, where the second sector gear portion is disposed on a radial side wall of the transmission member 2 a. Specifically, as shown in fig. 5, the transmission member 2a includes a transmission member body 2a-0 of a cylindrical structure, and the second sector gear portion of the second output gear 3g is provided on a radial side wall of the transmission member body 2 a-0. Further, the transmission member 2a further includes a first connecting hole connected to the second connecting rod 1d of the button mechanism 1 and a second connecting hole connected to the transmission connecting rod 2b, the second sector gear and the second connecting hole are located at two radial ends of the transmission member main body 2a-0, respectively, and the first connecting hole is located between the second sector gear and the second connecting hole.
Preferably, as shown in fig. 2 and 8, the gear member driving boss 3e-1 is also in driving fit with the button mechanism 1, and the button mechanism 1 drives the transmission member 2a to rotate in the opening direction, so that the circuit breaker is opened. The electric operating device 3 indirectly drives the transmission part 2a to rotate towards the opening direction through the button mechanism 1, so that the breaker is opened.
Specifically, as shown in fig. 1,2 and 6-8, when the electric operating device 3 switches on the circuit breaker through the operating mechanism 2, the driving gear member 3e rotates and is in driving fit with the first output gear driven portion 3f-0 through the gear member driving boss 3e-1, so as to drive the first output gear 3f to rotate, the first sector gear portion 3f-1 of the first output gear 3f is meshed with the second output gear 3g, and the second output gear 3g and the transmission member 2a are driven to coaxially and cooperatively rotate in the switching-on direction, so that the circuit breaker switches on. As shown in fig. 9, in the process of closing the circuit breaker by the operating mechanism 2, if a power failure or a transmission failure occurs, the electric operating device 3 will stop working, at this time, the first sector gear 3f-1 of the first output gear 3f is meshed with the second output gear 3g, and when the manual button mechanism 1 drives the transmission member 2a to continue to rotate in the closing direction to complete the closing of the circuit breaker, because the gear member driving boss 3e-1 is disposed in the first avoidance space S1 and the first gap exists, the transmission member 2a rotates and drives the first output gear 3f to rotate relative to the driving gear member 3e, so that the circuit breaker can be closed without overcoming the resistance of the electric operating device 3, and the state shown in fig. 10 is entered.
Preferably, as shown in fig. 1, for one embodiment of the operating mechanism 2, the operating mechanism 2 includes a transmission member 2a, a transmission link 2b, a locking member 2c, a rotating plate 2d and a trip member 2e, where the transmission member 2a and the rotating plate 2d are respectively pivotally disposed on the housing 4, and the locking member 2c and the trip member 2e are respectively pivotally disposed on the rotating plate 2d and are in locking engagement, and the transmission member 2a is in driving connection with the locking member 2c through the transmission link 2b, and the rotating plate 2d is in driving connection with the moving contact 80.
Preferably, as shown in fig. 12, the operating mechanism 2 further includes a transmission member return spring 2f, where the transmission member return spring 2f applies a force to the transmission member 2a to rotate the transmission member 2a in the opening direction, so as to accelerate the opening process of the circuit breaker and ensure that the transmission member 2a can be reset in place during opening. Further, as shown in fig. 12, the transmission member return spring 2f is a torsion spring, the torsion spring is sleeved on the rotation shaft of the transmission member 2a, one spring arm is in limit fit with the transmission member 2a, and the other spring arm is in limit fit with the housing 4.
Preferably, as shown in fig. 1, the transmission gear set includes a worm 3b, a first transmission gear 3c and a second transmission gear 3d which are sequentially meshed, the worm 3b is in driving connection with the motor 3a, and the second transmission gear 3d is meshed with the driving gear member 3 e.
Preferably, as shown in fig. 1,2 and 6-8, the button mechanism 1 is pressed/pulled to drive the transmission member 2a to rotate in the closing direction/opening direction so as to close/open the circuit breaker, the electric operation device 3 is in driving fit with the button mechanism 1, and the button mechanism 1 drives the transmission member 2a to rotate in the opening direction so as to open the circuit breaker. Further, as shown in fig. 2 and 8, the gear member driving boss 3e-1 of the driving gear member 3e is in driving engagement with the connecting member 1c of the button mechanism 1.
Preferably, as shown in fig. 1, 2, and 6-8, when the electric operation device 3 switches on/off the circuit breaker by the operation mechanism 2, the driving gear member 3e always rotates in the same direction. In particular, the driving gear member 3e always rotates in a counterclockwise direction as seen in the directions of fig. 1, 2 and 6-8.
Preferably, as shown in fig. 1, for one embodiment of the button mechanism 1, the button mechanism 1 includes a button member 1a, a first connecting rod 1b, a connecting member 1c and a second connecting rod 1d which are sequentially in driving connection, wherein the connecting member 1c is in driving connection with a transmission member 2a through the second connecting rod 1d, and the connecting member 1c is in driving fit with a gear member driving boss 3e-1 of the electric operating device 3. Further, as shown in fig. 1, the button member 1a and the connecting member 1c are slidably provided on the housing 4.
Preferably, as shown in fig. 1, the circuit breaker of the present invention further comprises a locking mechanism, wherein one end of the locking mechanism is a driven end of the locking mechanism, and protrudes outside the housing 4, and the other end of the locking mechanism is a mating end of the locking mechanism, and is mated with the button member 1a or the first connecting rod 1 b.
One implementation mode of the locking mechanism is that the circuit breaker of the embodiment is a plug-in circuit breaker, the circuit breaker is inserted into a circuit breaker assembling position installed on a cabinet, the locking mechanism is matched with the button mechanism 1 and a shell of the circuit breaker assembling position, locking and unlocking after the circuit breaker is installed on the circuit breaker assembling position are achieved, or the circuit breaker is prevented from being installed in place, or the circuit breaker is prevented from being installed on the circuit breaker assembling position or being pulled out of the circuit breaker assembling position in a closing state, and closing is prevented when the circuit breaker is not installed on the circuit breaker assembling position, and the button mechanism 1 is suitable for being matched with each locking mechanism.
Another implementation mode of the locking mechanism is that a locking hole matched with a locking mechanism driven end is correspondingly formed in a circuit breaker assembling position of the cabinet, after the circuit breaker is assembled in place, the locking mechanism driven end of the locking mechanism protrudes out of the shell 4 and protrudes into the cabinet locking hole, the circuit breaker is prevented from being pulled out of the cabinet at will, the button piece 1a is pulled, the button piece 1a or the first connecting rod 1b or the connecting piece 204 can drive the locking mechanism matched end to enable the locking mechanism driven end to retract into the shell 1, and the circuit breaker can be pulled out of the circuit breaker assembling position.
The third implementation mode of the locking mechanism is that when the circuit breaker is not mounted in the circuit breaker mounting position, the driven end of the locking mechanism is extruded by the cabinet wall to retract into the shell 4, the matched end of the locking mechanism is in limit fit with the button piece 1a or the first connecting rod 1b or the connecting piece 1c, the button piece 1a is prevented from moving towards the closing direction, closing can not be performed when the circuit breaker is not mounted in the circuit breaker mounting position, when the circuit breaker is mounted in the circuit breaker mounting position, the driven end of the locking mechanism is not extruded by the shell of the circuit breaker mounting position to move outside the shell 4, the matched end of the locking mechanism is released from limit fit with the button piece 1a or the first connecting rod 1b or the connecting piece 1c, and the button piece 1a can move towards the closing direction and the circuit breaker can be closed through the operating mechanism 2.
It should be noted that the button member 1a, the first link 1b, and the connecting member 1c of the button mechanism 1 may also be designed as an integral member, thereby reducing the number of parts. In order to facilitate the convenience of the cooperation of the button mechanism 1 with other mechanisms and not to affect the cooperation with the electric mechanism 2, the button mechanism 1 of the present invention is preferably a combination of a button member 1a, a first link 1b, a connecting member 1c and a second link 1c, so that the cooperation of the button mechanism 2 with the locking mechanism and the electric operating device 3, respectively, is facilitated.
The closing/opening process of the circuit breaker of the present invention by the electric operating device 3 through the operating mechanism 2 will be described below with reference to the drawings of the specification:
The circuit breaker is in a switching-off state (a moving contact 80 and a fixed contact 81 are disconnected), a driving gear piece 3e of an electric operating device 3 is located at an initial position, a first output gear 3f is not meshed with a second output gear 3g, after receiving a switching-on signal, the electric operating device 3 rotates and drives the first output gear 3f to be meshed with the second output gear 3g through a gear piece driving boss 3e-1, the driving gear piece 3e continues to rotate, and drives a transmission piece 2a to rotate in a switching-on direction through the output gear, so that after the circuit breaker is switched on, the driving gear piece 3e drives the first output gear 3f to be disengaged from the second output gear 3g and then stops, the driving gear piece 3e reaches an intermediate position, and the circuit breaker enters a state shown in fig. 8, and after receiving the switching-off signal, the driving gear piece 3e rotates and drives a connecting piece 1c of a button mechanism 1 through the gear piece driving boss 3e-1 to move to the connecting piece 1d to be in the switching-off state, and the circuit breaker enters the initial position shown in fig. 8.
As shown in fig. 11 and 12, a second embodiment of the circuit breaker of the present invention is shown.
As shown in fig. 11 and 12, the circuit breaker of the present embodiment is different from the first embodiment in that the clutch gear member includes a first output gear 3f coaxially linked with a driving gear member 3e and a second output gear 3g coaxially disposed and drivingly engaged with a transmission member 2a, the second output gear 3g also being drivingly engaged with the first output gear 3f, the transmission member 2a being rotatable relative to the second output gear 3 g.
Preferably, as shown in fig. 11 and 12, the second output gear 3g includes a second output gear shaft portion 3g-0 and a second output gear sector tooth portion 3g-1, the second output gear shaft portion 3g-0 is coaxially disposed with the transmission member 2a, the first output gear 3f is a sector gear, the transmission member 2a includes a second avoidance space 2a-1 disposed at one radial end thereof, one end of the second avoidance space 2a-1 is provided with a second closing driven surface 2a-10, the second avoidance space 2a-1 is a sector space, the sector angle of the second avoidance space is greater than the sector angle of the second output gear sector tooth portion 3g-1, the second output gear sector tooth portion 3g-1 is disposed in the second avoidance space 2a-1, a second gap is disposed between the second output gear sector tooth portion and the other end of the second avoidance space 2a-1, and the button mechanism 1 is manually operated to drive the transmission member 2a to rotate in a closing direction/opening direction, so that when the circuit breaker/opening gear 3e, the first output gear 3g and the second output gear 3f are kept stationary.
Preferably, as shown in fig. 11 and 12, the driving gear member 3e includes an intermediate driven gear 3e-0 and a driving gear member 3e-1, the first output gear 3f is coaxially linked with the intermediate driven gear 3e-0, the intermediate driven gear 3e-0 is meshed with a transmission gear set, the driving boss 3e-1 of the gear member is in driving fit with the button mechanism 1, and the button mechanism 1 drives the transmission member 2a to rotate in the opening direction, so that the circuit breaker is opened. Specifically, as shown in fig. 11, the driving gear member 3e includes an intermediate driven gear 3e-0, a button driving gear including one driving tooth, i.e., a gear driving boss 3e-1, and a first output gear 3f, which are sequentially stacked.
Preferably, as shown in fig. 11, the driving gear member 3e and the first output gear 3f are an integral member.
Specifically, in the process that the electric operating device 3 makes the circuit breaker switch-on through the operating mechanism 2, the first output gear 3f is meshed with the second output gear 3g, because of power failure or transmission failure, the electric operating device 3 stops working, the user manually operates the button mechanism 1 to drive the transmission piece 2a to continue to rotate towards the switch-on direction, so that the circuit breaker completes the switch-on operation, and because of the existence of the second avoidance space 2a-1 and the second gap, when the transmission piece 2a rotates towards the switch-on direction under the driving of the button mechanism 1, the second output gear 3g remains stationary, and the user can complete the switch-on operation of the circuit breaker without overcoming the resistance of the electric operating device 3.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (14)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010766961.9A CN111916317B (en) | 2020-08-03 | 2020-08-03 | breaker |
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| CN202010766961.9A CN111916317B (en) | 2020-08-03 | 2020-08-03 | breaker |
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| CN111477509B (en) * | 2020-04-13 | 2025-09-02 | 浙江正泰电器股份有限公司 | breaker |
| CN112151336B (en) * | 2020-10-13 | 2024-08-13 | 上海良信电器股份有限公司 | An operating mechanism and a circuit breaker |
| CN115410875B (en) * | 2021-05-26 | 2026-02-27 | 浙江正泰电器股份有限公司 | A plug-in circuit breaker |
| CN115295372A (en) * | 2022-08-25 | 2022-11-04 | 德力西电气有限公司 | Closing mechanism of circuit breaker and circuit breaker |
| CN115775711B (en) * | 2022-12-14 | 2023-11-14 | 上海正泰智能科技有限公司 | Switching mechanism and circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111681922A (en) * | 2020-06-05 | 2020-09-18 | 浙江正泰电器股份有限公司 | breaker |
| CN111681924A (en) * | 2020-06-05 | 2020-09-18 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN212695104U (en) * | 2020-08-03 | 2021-03-12 | 浙江正泰电器股份有限公司 | Circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111681922A (en) * | 2020-06-05 | 2020-09-18 | 浙江正泰电器股份有限公司 | breaker |
| CN111681924A (en) * | 2020-06-05 | 2020-09-18 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN212695104U (en) * | 2020-08-03 | 2021-03-12 | 浙江正泰电器股份有限公司 | Circuit breaker |
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