CN112151334A - Automatic reclosing mechanism and circuit breaker - Google Patents
Automatic reclosing mechanism and circuit breaker Download PDFInfo
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- CN112151334A CN112151334A CN202011093124.0A CN202011093124A CN112151334A CN 112151334 A CN112151334 A CN 112151334A CN 202011093124 A CN202011093124 A CN 202011093124A CN 112151334 A CN112151334 A CN 112151334A
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- automatic reclosing
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- 230000007246 mechanism Effects 0.000 title claims abstract description 239
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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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
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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
- H01H71/12—Automatic release mechanisms with or without manual release
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/128—Manual release or trip mechanisms, e.g. for test purposes
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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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- Mechanical Operated Clutches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides an automatic reclosing mechanism and a circuit breaker, which belong to the technical field of circuit breakers and comprise a base, wherein a driving mechanism, a clutch mechanism and a contact mechanism are arranged in the base, the driving mechanism comprises an electric driving mechanism and a manual driving mechanism, the electric driving mechanism and the manual driving mechanism are respectively connected with the clutch mechanism, the clutch mechanism is connected with the contact mechanism, and the electric driving mechanism and the manual driving mechanism can respectively drive the contact mechanism to open or close through the clutch mechanism. The automatic reclosing mechanism is good in adaptability and operability due to the two operation modes.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an automatic reclosing mechanism and a circuit breaker.
Background
An automatic reclosing circuit breaker is a facility which automatically recloses the circuit breaker by a mechanical device or a relay automatic device after the circuit breaker is opened due to some fault. The existing automatic reclosing circuit breaker generally adopts automatic operation, but under emergency, the automatic operation cannot respond in time, and dangerous conditions are possibly caused.
Disclosure of Invention
The invention aims to provide an automatic reclosing mechanism and a circuit breaker, which can realize automatic operation and manual operation.
The embodiment of the invention is realized by the following steps:
the embodiment of the invention provides an automatic reclosing mechanism, which comprises a base, wherein a driving mechanism, a clutch mechanism and a contact mechanism are arranged in the base, the driving mechanism comprises an electric driving mechanism and a manual driving mechanism, the electric driving mechanism and the manual driving mechanism are respectively connected with the clutch mechanism, the clutch mechanism is connected with the contact mechanism, and the electric driving mechanism and the manual driving mechanism can respectively drive the contact mechanism to be opened or closed through the clutch mechanism.
Optionally, when the manual driving mechanism drives the clutch mechanism, the electric driving mechanism is disconnected from the clutch mechanism.
Optionally, when the electric driving mechanism drives the clutch mechanism, the manual driving mechanism is connected with the clutch mechanism.
Optionally, manual drive mechanism includes the handle connecting rod, clutching mechanism includes drive gear and coaxial setting and is in boss seat and swivel mount on the drive gear, the boss seat in the swivel mount with between the drive gear and with drive gear is fixed, drive gear passes through contact mechanism is connected to the swivel mount, the one end of handle connecting rod slides and establishes in the swivel mount, the boss seat with the handle connecting rod supports and holds, in order to promote the swivel mount is rotatory to be made contact mechanism closes a floodgate.
Optionally, when the handle connecting rod is driven to drive the rotation seat to rotate, the boss seat is released from the state of abutting against the handle connecting rod.
Optionally, the clutch mechanism further comprises at least one unlocking piece arranged on the driving gear, and the unlocking piece pushes the contact mechanism to be opened.
Optionally, a strip-shaped hole is formed in the rotary seat, and one end of the handle connecting rod is arranged in the strip-shaped hole; at least one boss is arranged on the boss seat along the circumferential direction of the driving gear, and the boss abuts against the hole wall of the strip-shaped hole and pushes the end part of the handle connecting rod to rotate.
Optionally, the boss is provided with a bevel edge, the boss abuts against the handle connecting rod through the bevel edge, a locking included angle is formed between a hole wall abutting against the handle connecting rod in the strip-shaped hole and the bevel edge of the boss, and the locking included angle is 70-90 degrees.
Optionally, a first limiting boss is arranged on the base and located in an orthographic projection area of the rotary seat, and the first limiting boss is abutted to the handle connecting rod when in a closing state so as to limit the movement of the handle connecting rod.
Optionally, a second limiting boss and a third limiting boss are arranged in the base, and the second limiting boss and the third limiting boss can respectively abut against two ends of the rotary seat to limit the rotation range of the rotary seat.
Optionally, the swivel base is coaxially arranged with the boss base and the driving gear through a rotating shaft, a return spring is sleeved on the rotating shaft, and two ends of the return spring are respectively connected with the base and the swivel base; and the return spring is used for returning the rotary seat to the position of releasing the state of abutting against the second limiting boss after the contact mechanism is switched off.
Optionally, the unblocking piece is the unblock boss, the unblock boss is located follow on drive gear's the terminal surface drive gear's circumferencial direction, drive gear with be equipped with the trip bar between the contact mechanism, the spacing boss of second with when the transposable one end supports, the unblock boss have with the state that the trip bar supported, through the unblock boss promotes the trip bar rotates, so that contact mechanism separating brake.
Optionally, a U-shaped rod is arranged between the rotary seat and the contact mechanism, and the rotary seat rotates to pull the U-shaped rod to drive the contact mechanism to switch on or switch off.
Optionally, the electric driving mechanism comprises a motor and a worm gear, and the motor is in transmission connection with the driving gear through the worm gear and the driving gear.
Another aspect of the embodiments of the present invention provides a circuit breaker, which includes the above-mentioned automatic reclosing mechanism.
The embodiment of the invention has the beneficial effects that:
according to the automatic reclosing mechanism and the circuit breaker provided by the embodiment of the invention, the electric driving mechanism drives the clutch mechanism to act, and the clutch mechanism acts to drive the contact mechanism to act so as to realize automatic opening or closing. Meanwhile, the clutch mechanism is also connected with a manual driving mechanism, and the clutch mechanism can be directly operated through the manual driving mechanism so as to drive the contact mechanism to be manually opened or closed. The automatic and manual switching-off or switching-on can be respectively and independently realized through the electric driving mechanism and the manual driving mechanism. The automatic reclosing mechanism that this embodiment provided, the switching-off or closing in contact mechanism is realized to two kinds of operation modes of accessible electronic and manual, when electric operation is in the trouble, can be through manual operation, and two kinds of operation modes make this automatic reclosing mechanism adaptability and operability good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an automatic reclosing mechanism according to an embodiment of the present invention;
fig. 2 is a structural schematic diagram of a closing state of an automatic reclosing mechanism according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of an opening state of the automatic reclosing mechanism according to an embodiment of the present invention;
fig. 4 is a schematic view of a rotation base resetting and limiting structure of the automatic reclosing mechanism according to the embodiment of the invention;
FIG. 5 is a schematic view of a connection structure of a rotation seat and a driving gear of the automatic reclosing mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an automatic reclosing mechanism according to an embodiment of the present invention, showing a structure of a handle link cooperating with a boss seat;
FIG. 7 is an enlarged view taken at A in FIG. 6;
FIG. 8 is a schematic structural diagram of a driving gear of the automatic reclosing mechanism according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a rotation seat structure of the automatic reclosing mechanism according to the embodiment of the present invention;
FIG. 10 is a schematic diagram of a motor driving structure of an automatic reclosing mechanism according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a contact mechanism of an automatic reclosing mechanism according to an embodiment of the invention.
Icon: 10-a base; 10 a-a first limit boss; 10 b-a second limit boss; 10 c-a third limit boss; 11-a handle link; 11 a-a button; 12-a return spring; 13-a drive gear; 13 a-an unlocking boss; 13 b-boss base; 13b 1-boss; 13b 2-hypotenuse; 13 c-a spindle; 14-a trip bar; 15-U-shaped rod; 16-moving contact; 17-a stationary contact; 18-transposition; 181-strip shaped holes; 182-a first limit end; 183-second limit end; 19-a bull gear; 191-pinion gear; 20-a worm gear; 21-a motor; 211-worm; 22-a handle spring; 23-jump buckle; 24-a contact carrier; 25-locking; 26-torsion spring; beta-locking included angle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Referring to fig. 1, the present embodiment provides an automatic reclosing mechanism, which includes a base 10, a driving mechanism, a clutch mechanism and a contact mechanism are disposed in the base 10, the driving mechanism includes an electric driving mechanism and a manual driving mechanism, the electric driving mechanism and the manual driving mechanism are respectively connected to the clutch mechanism, the clutch mechanism is connected to the contact mechanism, and the electric driving mechanism and the manual driving mechanism can respectively drive the contact mechanism to open or close through the clutch mechanism.
The clutch mechanism is driven by the electric driving mechanism to drive the contact mechanism to automatically open or close; the manual driving mechanism drives the clutch mechanism to act, and the opening or closing of the contact mechanism is manually realized.
The manual operation can be performed when the automatic operation fails, and if the electric driving mechanism fails, the opening or closing is completed through the manual operation. The manual operation can also be used during the automatic operation, and the electric driving mechanism and the manual driving mechanism can respectively and independently drive the moving contact mechanism to be switched off or switched on through the clutch mechanism, namely the automatic operation and the manual operation can be respectively and independently carried out.
The automatic reclosing mechanism and the circuit breaker provided by the embodiment drive the clutch mechanism to act through the electric driving mechanism, and the clutch mechanism acts to drive the contact mechanism to act so as to realize automatic opening or closing. Meanwhile, the clutch mechanism is also connected with a manual driving mechanism, and the clutch mechanism can be directly operated through the manual driving mechanism so as to drive the contact mechanism to be manually opened or closed. The automatic and manual switching-off or switching-on can be respectively and independently realized through the electric driving mechanism and the manual driving mechanism. The automatic reclosing mechanism that this embodiment provided, the switching-off or closing in contact mechanism is realized to two kinds of operation modes of accessible electronic and manual, when electric operation is in the trouble, can be through manual operation, and two kinds of operation modes make this automatic reclosing mechanism adaptability and operability good.
Specifically, when the manual driving mechanism drives the clutch mechanism, the electric driving mechanism is disconnected from the clutch mechanism. That is, when the clutch mechanism is driven by the manual driving mechanism to open or close the contactor mechanism, the clutch mechanism can be disengaged from the driving of the electric driving mechanism, the electric driving mechanism cannot operate the clutch mechanism, the automatic operation is temporarily disabled, and the manual operation is preferentially performed.
When the electric driving mechanism drives the clutch mechanism, the manual driving mechanism is connected with the clutch mechanism. When the electric driving mechanism automatically drives the opening or closing, the manual driving mechanism is still connected with the clutch mechanism, and the manual driving mechanism can operate the clutch mechanism to act and preferentially perform manual operation. At the moment, automatic operation such as switching-on, and manual operation intervention, switching-off or switching-on can be manually carried out; if the automatic operation is in opening, after the manual operation intervenes, the opening or closing can be carried out manually.
Wherein the manual drive mechanism comprises a handle link 11 and the electric drive mechanism comprises a motor 21. Clutching mechanism includes drive gear 13, and coaxial boss seat 13b and the swivel mount 18 of setting on drive gear 13, boss seat 13b is located between swivel mount 18 and the drive gear 13 and fixed with drive gear 13, drive gear 13 passes through swivel mount 18 and connects the contact mechanism, the one end of handle connecting rod 11 is slided and is established in swivel mount 18, boss seat 13b supports with handle connecting rod 11, in order to promote the swivel mount 18 rotation to make the contact mechanism combined floodgate, clutching mechanism still includes at least one unlocking piece of establishing on drive gear 13, unlocking piece promotes the separating brake of contact mechanism.
One end of the handle connecting rod 11 is slidably disposed in the rotating base 18, and the handle connecting rod 11 is driven to drive the rotating base 18 to rotate, so that the contact mechanism is opened or closed, and at this time, the boss base 13b is released from the state of abutting against the handle connecting rod 11. That is, when the handle link 11 is manually operated, the boss base 13b is released from the state of abutting against the handle link 11, and the automatic operation is disabled, and the opening and closing are preferentially performed by the manual operation.
When the motor 21 is controlled to start or stop rotation, the rotation is controlled by a microswitch.
As shown in fig. 11, the contact mechanism includes a contact support 24, the contact support 24 is rotatably disposed on the base 10, the contact support 24 is provided with a rotatable trip 23, a latch 25 and a moving contact 16, the trip 23 is connected to the U-shaped rod 15, the stationary contact 17 is disposed on the base 10, when the rotating base 18 rotates to pull the U-shaped rod 15 to move, the U-shaped rod 15 pulls the trip 23 to rotate, the trip 23 is latched with the latch 25, the contact support 24 rotates to drive the moving contact 16 to rotate, and the moving contact 16 and the stationary contact 17 are in contact with each other to be closed. A torsion spring 26 is arranged between the contact support 24 and the lock catch 25, the torsion spring 26 resets the movable contact 16, and the movable contact 16 and the static contact 17 are separated and opened.
Specifically, a U-shaped rod 15 is arranged between the rotary seat 18 and the contact mechanism, and the rotary seat 18 rotates to pull the U-shaped rod 15 to drive the contact mechanism to open or close.
The manual driving mechanism further includes a button 11a connected to one end of the handle link 11, and the other end of the handle link 11 is connected to the rotary base 18. The button 11a is pressed, so that the handle connecting rod 11 is pulled to move, the rotary seat 18 is driven to rotate, the rotary seat 18 rotates, the contact mechanism is driven to act through the U-shaped rod 15, switching-off or switching-on is carried out, and manual operation is completed.
Wherein, when electric control, drive gear 13 rotates and drives boss seat 13b and rotate, and at this in-process, swivel mount 18 does not rotate earlier, rotates to handle connecting rod 11 along with boss seat 13b and establishes when swivel mount 18 tip position, and boss seat 13b supports and holds handle connecting rod 11, promotes swivel mount 18 and rotates, and contact mechanism closes a floodgate. In the switching-on process, if the handle connecting rod 11 is manually pulled, the handle connecting rod 11 is separated from the boss base 13b, so that the automatic switching-on process is invalid, and switching-off operation or switching-on operation is directly carried out through the handle connecting rod 11.
After switching on, the motor 21 stops rotating, the driving gear 13 continues rotating under the inertia effect, the unlocking piece on the driving gear 13 unlocks the mechanism to enable the contact mechanism to be switched off, the rotating shaft 18 is coaxially arranged with the boss base 13b and the driving gear 13 through the rotating shaft 13c, the rotating shaft 13c is sleeved with the return spring 12, and two ends of the return spring 12 are respectively connected with the base 10 and the rotating shaft 18; when the contact mechanism is in a closing state, the return spring 12 accumulates elastic force, and after the contact mechanism is unlocked and opened, the rotating base 18 is returned by the return spring 12, and the handle link 11 is returned by the handle spring 22 provided on the button 11 a. In the process of switching off, because the motor 21 stops rotating, the handle connecting rod 11 is pulled at the moment, and the switching off or the switching on can be directly and manually operated.
The electric driving mechanism further comprises a worm wheel 20, a worm 211 and an intermediate gear set, the motor 21 is in transmission connection with the driving gear 13 through the worm wheel 20 and the worm 211, specifically, the worm 211 is arranged on an output shaft of the motor 21, the worm 211 is in transmission connection with the worm wheel 20, and the worm wheel 20 is in transmission connection with the driving gear 13 through the intermediate gear set.
The intermediate gear set comprises a worm gear pinion (not shown in fig. 10, the worm gear pinion is positioned on the back of the worm gear 20 in fig. 8), a large gear 19 and a pinion 191 which is coaxially arranged with the large gear 19 and synchronously rotates, the worm gear pinion and the worm gear 20 are coaxially arranged and synchronously rotate, the worm gear pinion is in transmission connection with the large gear 19, and the pinion 191 coaxially arranged on the large gear 19 and the driving gear 13 are in transmission connection.
According to the automatic reclosing mechanism provided by the embodiment, the motor 21 drives the driving gear 13 to rotate, the driving gear 13 drives the boss base 13b to rotate, the boss base 13b is abutted against the handle connecting rod 11, the boss base 13b pushes the rotary base 18 to rotate, and the rotary base 18 rotates to drive the moving contact mechanism to act, so that the contact mechanism is closed; after switching on, the driving part stops rotating, but the driving gear 13 can continue to rotate for a certain distance under the action of inertia, and the unlocking part on the driving gear 13 pushes the contact mechanism to be switched off, so that electric operation is realized. In the switching-on process, the handle connecting rod 11 is connected with the rotary seat 18, the handle connecting rod 11 can be pulled to separate from the boss seat 13b, automatic operation fails, the handle connecting rod 11 is pulled to directly drive the rotary seat 18 to rotate, so that the contact mechanism is switched off or switched on, and manual operation is realized.
Specifically, as shown in fig. 9, a strip-shaped hole 181 is formed on the swivel base 18, and one end of the handle link 11 is disposed in the strip-shaped hole 181; at least one boss 13b1 is arranged on the boss base 13b along the circumferential direction of the driving gear 13, and the boss 13b1 pushes the rotary seat 18 to rotate through the end part of the handle connecting rod 11 which is abutted against the hole wall of the strip-shaped hole 181.
As shown in fig. 5, the end of the handle link 11 can slide in the strip-shaped hole 181, and at least one boss 13b1 is disposed on the boss base 13b, as shown in fig. 8, two bosses 13b1 are provided in this embodiment, two bosses 13b1 are disposed axially symmetrically along the driving gear 13, and the boss 13b1 abuts against the end of the handle link 11 through the hole wall of the strip-shaped hole 181, so as to push the rotary base 18 to rotate to drive the contact mechanism to close the switch.
As shown in fig. 6 and 7, the cross-sectional shape of the boss 13b1 is a trapezoid, one waist of the trapezoid is a bevel edge 13b2, the other waist is a transition arc, when the boss 13b1 abuts against the handle link 11, the bevel edge 13b2 of the boss 13b1 extends into the orthographic projection area of the strip-shaped hole 181, the boss 13b1 abuts against the handle link 11 through the bevel edge 13b2, a locking included angle β is formed between the hole wall abutting against the handle link 11 in the strip-shaped hole 181 and the bevel edge 13b2 of the boss 13b1, and the locking included angle β is 70-90 °.
At contact mechanism switching-on in-process, drive gear 13 drives boss seat 13b anticlockwise rotation, and swivel mount 18 does not rotate, and boss seat 13b rotates the orthographic projection region that boss 13b1 stretched into strip hole 181, and handle connecting rod 11 is withstood through the pore wall of strip hole 181 to boss 13b1 to promote swivel mount 18 anticlockwise rotation, the tip of handle connecting rod 11 slides in strip hole 181 simultaneously, closes a floodgate.
The end part of the handle connecting rod 11 is arranged in the sliding direction of the strip-shaped hole 181, a locking included angle beta is formed between the hole wall in the strip-shaped hole 181, which is abutted against the handle connecting rod 11, and the inclined edge 13b2 of the boss 13b1, the locking included angle beta is 70-90 degrees, and the inclined edge 13b2 can push the rotary seat 18, so that the contact mechanism is switched on.
As shown in fig. 2, a first limiting boss 10a is provided on the base 10, the first limiting boss 10a is located in the orthographic projection area of the rotation seat 18, the first limiting boss 10a is abutted against the handle link 11 when in the closing state to limit the movement of the handle link 11, at this time, the oblique edge 13b2 of the boss 13b1 pushes the rotation seat 18 in place, and the handle link 11 is locked by the first limiting boss 10a, so that the mechanism keeps the closing state. In the process, if the handle connecting rod 11 is pulled, the handle connecting rod 11 can be unlocked and is separated from the state of being abutted against the first limit boss 10a and the inclined edge 13b2, and the opening or closing is directly operated through the handle connecting rod 11.
In addition, a second limit boss 10b and a third limit boss 10c are arranged in the base 10, and the second limit boss 10b and the third limit boss 10c can respectively abut against two ends of the rotating seat 18 so as to limit the rotating range of the rotating seat 18.
As shown in fig. 2, when the rotating base 18 rotates to the locking position, at this time, the contact mechanism is in a closing state, the handle link 11 is simultaneously supported by the first limiting boss 10a and the boss 13b1, one end (the first limiting end 182) on the rotating base 18 is supported by the second limiting boss 10b, and the second limiting boss 10b limits the rotating base 18 to continue to rotate counterclockwise, so as to lock the rotating base 18.
The driving gear 13 can continue to rotate counterclockwise under the driving of the motor 21, the unlocking piece is an unlocking boss 13a, the unlocking boss 13a is located on the end face of the driving gear 13 and along the circumferential direction of the driving gear 13, and two unlocking bosses 13a are arranged in the embodiment and are respectively symmetrically arranged along the axis of the driving gear 13. A trip rod 14 is arranged between the driving gear 13 and the contact mechanism, when the second limit boss 10b abuts against one end (the first limit end 182) of the rotating seat 18, the unlocking boss 13a has a state of abutting against the trip rod 14, after the motor 21 stops rotating, the driving gear 13 continues to rotate anticlockwise under the inertia effect to enable the unlocking boss 13a to push the trip rod 14 to rotate clockwise, as shown in fig. 3, so that the contact mechanism is unlocked, the contact mechanism is switched off, meanwhile, the rotating seat 18 is reset through a reset spring 12, and the reset spring 12 enables the rotating seat 18 to rotate clockwise to reset.
As shown in fig. 4, when the rotating base 18 rotates clockwise until the second limiting end 183 of the rotating base 18 abuts against the third limiting projection 10c, the third limiting projection 10c blocks the rotating base 18 from continuing to rotate, so as to limit the rotating base 18.
The automatic reclosing mechanism that this embodiment provided, its course of operation is: during manual operation, the button 11a is pressed to pull the handle connecting rod 11 to move, the handle connecting rod 11 drives the rotary seat 18 to rotate, and then the contact mechanism is pulled to act through the U-shaped rod 15, so that the manual control of opening or closing is realized. In the electric operation, the motor 21 drives the driving gear 13 to rotate through the worm wheel 20, the worm 211 and the intermediate gear set, the driving gear 13 rotates anticlockwise to drive the boss base 13b which is arranged coaxially with the driving gear to rotate, the rotary base 18 does not rotate, when the boss base 13b rotates to abut against the handle connecting rod 11, the boss base 13b pushes the rotating base 18 to rotate anticlockwise so as to drive the contact mechanism to be switched on, as shown in fig. 2, when the rotary seat 18 rotates to the position where it abuts against the second limit boss 10b, the contact mechanism completes the closing, in the process, the inclined edge 13b2 on the boss seat 13b is abutted against the end part of the handle connecting rod 11, the handle connecting rod 11 slides in the strip-shaped hole 181 of the swivel base 18 until the handle connecting rod 11 slides to be blocked by the first limit boss 10a, the handle connecting rod 11 is abutted against the first limiting boss 10a, at the moment, the rotary seat 18 is locked, and the contact mechanism can keep a stable closing state; if the handle connecting rod 11 is pulled in the closing process, the handle connecting rod 11 can be separated from the state of being abutted against the inclined edge 13b2 and the first limiting boss 10a, so that the automatic operation is disabled, and the switch is directly opened or closed through manual operation. During opening, the motor 21 stops rotating, the driving gear 13 continues to rotate counterclockwise under the action of inertia, the unlocking boss 13a on the driving gear 13 rotates to a state of abutting against the trip rod 14, the unlocking boss 13a pushes the trip rod 14 to enable the trip rod 14 to rotate clockwise, as shown in fig. 3, the mechanism is unlocked, the trip rod 14 drives the contact mechanism to open the brake, the rotary seat 18 rotates clockwise to reset under the action of the reset spring 12, the rotary seat 18 returns to a position of releasing the state of abutting against the second limit boss 10b, in the resetting process, as shown in fig. 4, the rotary seat 18 rotates to abut against the third limit boss 10c to limit, and the handle connecting rod 11 resets under the action of the handle spring 22. In the process of switching off, the motor 21 stops rotating, and the handle connecting rod 11 can be pulled to directly operate switching off or switching on. When the next switching-on, the motor 21 continues to rotate to drive the driving gear 13 to continue to rotate anticlockwise to drive the rotary seat 18 to rotate anticlockwise, and the next cycle of switching-on and locking is continued to be repeated.
The embodiment also discloses a circuit breaker, which comprises the automatic reclosing mechanism.
The circuit breaker comprises the same structure and beneficial effects as the automatic reclosing mechanism in the previous embodiment. The structure and the beneficial effects of the automatic reclosing mechanism have been described in detail in the foregoing embodiments, and are not described again here.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. The utility model provides an automatic reclosing mechanism, its characterized in that, includes the base, be equipped with actuating mechanism, clutching mechanism and contact mechanism in the base, actuating mechanism includes electric drive mechanism and manual actuating mechanism, electric drive mechanism with manual actuating mechanism respectively with clutching mechanism connects, clutching mechanism with contact mechanism connects, electric drive mechanism with manual actuating mechanism can pass through respectively the clutching mechanism drive contact mechanism opens the floodgate or closes the floodgate.
2. The automatic reclosing mechanism of claim 1, wherein the electric drive is disconnected from the clutch mechanism when the manual drive drives the clutch mechanism.
3. The automatic reclosing mechanism of claim 1, wherein the manual drive mechanism remains connected to the clutch mechanism while the electric drive mechanism drives the clutch mechanism.
4. The automatic reclosing mechanism according to any one of claims 1 to 3, wherein the manual driving mechanism comprises a handle link, the clutch mechanism comprises a driving gear and a boss seat and a swivel seat coaxially arranged on the driving gear, the boss seat is located between the swivel seat and the driving gear and fixed to the driving gear, the driving gear passes through the swivel seat and connects the contact mechanism, one end of the handle link is slidably arranged in the swivel seat, the driving gear drives the boss seat to rotate, so that the boss seat and the handle link abut against each other to push the swivel seat to rotate to enable the contact mechanism to be closed.
5. The automatic reclosing mechanism of claim 4, wherein when the handle link is actuated to rotate the rotating seat, the boss seat is released from abutting against the handle link.
6. The automatic reclosing mechanism of claim 4, wherein the clutch mechanism further includes at least one unlocking member provided on the drive gear, the unlocking member urging the contactor mechanism to open.
7. The automatic reclosing mechanism of claim 4, wherein a strip-shaped hole is formed on the rotating seat, and one end of the handle link is arranged in the strip-shaped hole; at least one boss is arranged on the boss seat along the circumferential direction of the driving gear, and the boss abuts against the hole wall of the strip-shaped hole and pushes the end part of the handle connecting rod to rotate.
8. The automatic reclosing mechanism of claim 7, wherein the boss has an oblique edge, the boss abuts against the handle link rod through the oblique edge, a locking included angle is formed between a hole wall of the strip-shaped hole abutting against the handle link rod and the oblique edge of the boss, and the locking included angle is 70-90 °.
9. The automatic reclosing mechanism of claim 4, wherein a first limiting boss is arranged on the base and located in an orthographic projection area of the rotary seat, and the first limiting boss is used for abutting against the handle link rod in a closing state to limit the movement of the handle link rod.
10. The automatic reclosing mechanism of claim 6, wherein a second limit boss and a third limit boss are provided in the base, and the second limit boss and the third limit boss can respectively abut against two ends of the rotary seat to limit the rotation range of the rotary seat.
11. The automatic reclosing mechanism of claim 10, wherein the rotating seat is coaxially disposed with the boss seat and the driving gear through a rotating shaft, a return spring is sleeved on the rotating shaft, and two ends of the return spring are respectively connected to the base and the rotating seat; and the return spring is used for returning the rotary seat to the position of releasing the state of abutting against the second limiting boss after the contact mechanism is switched off.
12. The automatic reclosing mechanism of claim 11, wherein the unlocking member is an unlocking boss located on the end face of the driving gear along the circumferential direction of the driving gear, a trip rod is arranged between the driving gear and the contact mechanism, when the second limiting boss abuts against one end of the rotary seat, the unlocking boss is in an abutting state with the trip rod, and the trip rod is pushed to rotate by the unlocking boss, so that the contact mechanism is opened.
13. The automatic reclosing mechanism of claim 4, wherein a U-shaped lever is disposed between the rotary seat and the contact mechanism, and the rotary seat rotates to pull the U-shaped lever to drive the contact mechanism to close or open the switch.
14. The automatic reclosing mechanism of claim 4, wherein the electric drive mechanism includes a motor and a worm gear, the motor being drivingly connected through the worm gear and the drive gear.
15. A circuit breaker including an automatic reclosing mechanism according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011093124.0A CN112151334B (en) | 2020-10-13 | 2020-10-13 | Automatic reclosing mechanism and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011093124.0A CN112151334B (en) | 2020-10-13 | 2020-10-13 | Automatic reclosing mechanism and circuit breaker |
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| Publication Number | Publication Date |
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| CN112151334A true CN112151334A (en) | 2020-12-29 |
| CN112151334B CN112151334B (en) | 2024-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011093124.0A Active CN112151334B (en) | 2020-10-13 | 2020-10-13 | Automatic reclosing mechanism and circuit breaker |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206190A (en) * | 2016-08-30 | 2016-12-07 | 德力西电气有限公司 | A kind of divide-shut brake control structure and there is its chopper |
| CN213401069U (en) * | 2020-10-13 | 2021-06-08 | 上海良信电器股份有限公司 | Automatic reclosing mechanism and circuit breaker |
-
2020
- 2020-10-13 CN CN202011093124.0A patent/CN112151334B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206190A (en) * | 2016-08-30 | 2016-12-07 | 德力西电气有限公司 | A kind of divide-shut brake control structure and there is its chopper |
| CN213401069U (en) * | 2020-10-13 | 2021-06-08 | 上海良信电器股份有限公司 | Automatic reclosing mechanism and circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112151334B (en) | 2024-09-20 |
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