CN116504592B - Operating mechanism of circuit breaker and circuit breaker - Google Patents
Operating mechanism of circuit breaker and circuit breakerInfo
- Publication number
- CN116504592B CN116504592B CN202310543645.9A CN202310543645A CN116504592B CN 116504592 B CN116504592 B CN 116504592B CN 202310543645 A CN202310543645 A CN 202310543645A CN 116504592 B CN116504592 B CN 116504592B
- Authority
- CN
- China
- Prior art keywords
- closing
- indicator
- state
- ready
- transmission unit
- 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
- H01H71/04—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
-
- 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
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Abstract
The invention relates to the technical field of piezoelectric devices, and particularly discloses an operating mechanism of a circuit breaker and the circuit breaker. The switch-on ready indicator in the operating mechanism of the circuit breaker is arranged on the outer side of the side plate of the frame, the switch-on ready indicator is convenient to install and replace, maintenance cost is reduced, the switch-on ready indicator can be selectively installed, the circuit breaker has function selecting performance, the diversified requirements of the circuit breaker are met, the first linkage part of the switch-on ready indicator is directly linked with the energy storage unit, the second linkage part is directly linked with the switch-on and switch-off transmission unit, the third connection part is directly linked with the tripping transmission unit, the connection structure of the switch-on ready indicator and the energy storage unit, the switch-on and switch-off transmission unit and the tripping transmission unit is simplified, and operators can conveniently and accurately judge whether the circuit breaker is in a switch-on state or not, and invalid switch-on is avoided.
Description
Technical Field
The invention relates to the technical field of piezoelectric devices, in particular to an operating mechanism of a circuit breaker and the circuit breaker.
Background
The circuit breaker is used as electrical equipment for controlling the on-off of a power transmission line, the performance of the circuit breaker directly influences the safety of downstream electrical equipment, and any circuit breaker fault can bring about huge economic loss and even casualties. The operating mechanism is an executing component of the circuit breaker, is a core of the whole circuit breaker, and is responsible for providing energy required by opening and closing operations of the circuit breaker and executing the opening and closing operations.
The circuit breaker includes at least a pair of contacts and an operating mechanism for closing and opening the contacts, and the operating mechanism can be in a plurality of different states. In order to display the state of the operating mechanism, the operating mechanism is further provided with a member indicating the state. The normal state indication of the operating mechanism comprises an on-off indication, an energy storage indication and an energy release indication, wherein when the state indication component of the circuit breaker displays that the circuit breaker is in an off-off state and an energy storage state, the circuit breaker is generally considered to be in a state capable of being switched on. But this is not the case, when the trip core of the undervoltage trip in the circuit breaker is in the push-out position, the circuit voltage is below the voltage range normally allowed to close, at which time the circuit breaker is still unable to close. Therefore, the circuit breaker must meet the following three conditions that 1, an operating mechanism must store energy, 2, the circuit breaker must be in an open (i.e. brake-separating) state, and3, a tripping iron core of the undervoltage tripping device must be in a retracted position.
In order to facilitate an operator to accurately judge whether the circuit breaker is in a switching-on state or not, invalid switching-on is avoided, a switching-on state indicating device of the circuit breaker is arranged on an operating mechanism, but the connecting structure of the switching-on state indicating device of the circuit breaker and the operating mechanism in the prior art is complex, so that the circuit breaker is inconvenient to install and replace, and the maintenance cost is increased.
Therefore, it is needed to provide an operating mechanism of a circuit breaker and the circuit breaker to solve the above technical problems.
Disclosure of Invention
The invention aims to provide an operating mechanism of a circuit breaker and the circuit breaker, which are convenient for installing and replacing a ready-to-close indicator, reduce maintenance cost, simplify the installation structure of the ready-to-close indicator, and enable operators to accurately judge whether the circuit breaker is in a state capable of being closed or not, so that invalid closing is avoided.
To achieve the purpose, the invention adopts the following technical scheme:
in one aspect, there is provided an operating mechanism of a circuit breaker, comprising:
the frame is internally provided with an energy storage unit, a switching-on/off transmission unit and a tripping transmission unit;
The ready-to-close indicator is rotationally arranged on the outer side of the side plate of the frame and comprises an indicator body, and the indicator body is provided with a first linkage part capable of being linked with the energy storage unit, a second linkage part capable of being linked with the opening and closing transmission unit and a third linkage part capable of being linked with the tripping transmission unit;
when the energy storage unit is in an energy storage state, the opening and closing transmission unit is in an opening state and the tripping transmission unit is in a free state, the closing ready indicator is in a state capable of displaying closing;
When the energy storage unit is in an energy release state or the opening and closing transmission unit is in a closing state or the tripping transmission unit is in a non-free state, the closing ready indicator is in a state of displaying non-closing.
As an alternative technical scheme of the operating mechanism of the circuit breaker, the indicator body is provided with a fourth linkage part, and the outer side of the side plate of the frame is provided with a signal generator;
When the ready-to-close indicator is in a state of displaying a closable state, the fourth linkage part triggers the signal generator;
When the ready-to-close indicator is in a state of not being closed, the fourth linkage part cannot trigger the signal generator.
As an alternative technical scheme of the operating mechanism of the circuit breaker, the indicator body is provided with a ready-to-close indicator;
When the closing ready indicator is in a state of displaying closing possibility, the closing ready indicator displays closing ready;
And when the closing ready indicator is in a state of displaying non-closing, the closing ready indicator displays that the closing is not ready.
As an optional technical scheme of the operating mechanism of the circuit breaker, the first linkage part comprises a first bump protruding from the side surface of the indicator body, a first chute is arranged on a side plate of the frame, the first bump penetrates through the first chute and can be linked with the energy storage unit, and the first bump can slide along the first chute.
As an alternative technical scheme of the operating mechanism of the circuit breaker, the energy storage unit comprises a first cam plate, the first cam plate is rotationally connected with the frame, and a circumference part and a groove part are arranged on the first cam plate;
The energy storage unit is in an energy storage state, the first protruding block is positioned at the first end of the first chute and is opposite to the groove part, or the first protruding block is positioned at the second end of the first chute and is positioned in the groove part, the energy storage unit is in an energy release state, and the first protruding block is positioned at the first end of the first chute and is propped against the circumference part.
As an optional technical scheme of the operating mechanism of the circuit breaker, the second linkage part comprises a second protruding block protruding from the side surface of the indicator body, a second sliding groove is formed in a side plate of the frame, the second protruding block penetrates through the second sliding groove and can be linked with the opening and closing transmission unit, and the second protruding block can slide along the second sliding groove.
As an optional technical scheme of the operating mechanism of the circuit breaker, the opening and closing transmission unit comprises an opening and closing indicating piece and a main shaft, the opening and closing indicating piece and the main shaft are respectively connected with the frame in a rotating way, the opening and closing indicating piece comprises a first linkage plate, and a main shaft cantilever is arranged on the main shaft;
When the opening and closing transmission unit is in a closing state, the main shaft cantilever is propped against one side of the first linkage plate, the other side of the first linkage plate is propped against the second lug, and the second lug is arranged at the first end of the second chute; when the opening and closing transmission unit is in an opening state, the main shaft cantilever is separated from one side of the first linkage plate, and the second lug is arranged at the first end or the second end of the second chute.
As an optional technical scheme of the operating mechanism of the circuit breaker, the third linkage part comprises a third bump arranged at one end of the indicator body, a third sliding groove is arranged on a side plate of the frame, one end of the tripping transmission unit penetrates through the third sliding groove and can be linked with the third bump, and one end of the tripping transmission unit can slide along the third sliding groove.
As an optional technical scheme of the operating mechanism of the circuit breaker, the tripping transmission unit comprises a brake-separating half shaft, a linkage shaft is arranged on the brake-separating half shaft, and the linkage shaft penetrates through the third sliding groove;
the tripping transmission unit is in a free state, the linkage shaft is arranged at the first end of the third chute, the tripping transmission unit is in a non-free state, and the linkage shaft is arranged at the second end of the third chute and abuts against the third bump.
As an optional technical scheme of the operating mechanism of the circuit breaker, the ready-to-close indicator further includes a first elastic member, the first elastic member is connected with the indicator body and the frame, and when the energy storage unit is in the energy storage state, the opening and closing transmission unit is in the opening state and the tripping transmission unit is in the free state, the first elastic member enables the ready-to-close indicator to be in a state capable of displaying closing.
In another aspect, a circuit breaker is provided, including a circuit breaker body and the operating mechanism of the circuit breaker described in any of the above, the operating mechanism of the circuit breaker being disposed on the circuit breaker body.
The invention has the beneficial effects that:
The switch-on ready indicator in the operating mechanism of the circuit breaker is arranged on the outer side of the side plate of the frame, the switch-on ready indicator is convenient to install and replace, maintenance cost is reduced, the switch-on ready indicator can be selectively installed, the circuit breaker has function selecting and matching performance, the diversified requirements of the circuit breaker are met, the first linkage part of the switch-on ready indicator is directly linked with the energy storage unit, the second linkage part is directly linked with the switch-on and switch-off transmission unit, the third connection part is directly linked with the tripping transmission unit, the connection structure of the switch-on ready indicator, the energy storage unit, the switch-on and switch-off transmission unit and the tripping transmission unit is simplified, the switch-on ready indicator can be in a display switch-on state or a display non-switch-on state, and operators can accurately judge whether the circuit breaker is in a switch-on state or not, and invalid switch-on is avoided.
Drawings
Fig. 1 is a schematic view of a partial structure of a circuit breaker according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of an operating mechanism according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first view of a ready-to-close indicator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second view of a ready-to-close indicator according to an embodiment of the present invention;
FIG. 5 is a schematic view of a mask according to an embodiment of the present invention;
fig. 6 is a schematic view of a position structure of a first view angle of a ready-to-close indicator when an energy storage unit provided in an embodiment of the present invention is in a released state;
Fig. 7 is a schematic view of a position structure of a second view angle of the ready-to-close indicator when the energy storage unit is in a released state according to the embodiment of the present invention;
fig. 8 is a schematic diagram of a partial structure of an energy storage unit according to an embodiment of the present invention;
fig. 9 is a schematic view of a position structure of a first view angle of a ready-to-close indicator when a circuit breaker is in a closed state according to an embodiment of the present invention;
Fig. 10 is a schematic view of a position structure of a second view angle of a ready-to-close indicator when a circuit breaker is in a closed state according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a spindle according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of an opening and closing indicator according to an embodiment of the present invention;
Fig. 13 is a schematic view of a position structure of a first view angle of a ready-to-close indicator when a trip transmission unit provided in an embodiment of the present invention is in a non-free state;
fig. 14 is a schematic view of a position structure of a second view angle of the ready-to-close indicator when the trip transmission unit is in a non-free state according to the embodiment of the present invention;
FIG. 15 is a schematic diagram of a brake release half shaft according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of an undervoltage release according to an embodiment of the present invention;
fig. 17 is a schematic structural view of a ready-to-close indicator in a first view angle showing a state of being able to close according to an embodiment of the present invention;
fig. 18 is a schematic structural view of a ready-to-close indicator in a second view angle showing a state of being able to close according to an embodiment of the present invention.
In the figure:
1. the device comprises a frame, 11, a side plate, 111, a first chute, 112, a second chute, 113, a third chute, 12, a second mounting part, 13 and a limiting shaft;
2. The device comprises an energy storage unit, a first cam piece, 211, a circumferential part, 212, a groove part, 22, a cam shaft, 23, a second cam piece and 24, an energy storage display indicator;
3. An opening and closing transmission unit; 31, a switching-on/off indicator, 311, a first linkage plate, 312, a switching-on/off display part, 32, a main shaft, 321, a main shaft cantilever, 33 and a second elastic piece;
4. a trip transmission unit; 41, a brake-separating half shaft, 42, a linkage shaft, 43, a brake-separating cantilever;
5. The automatic switching-on device comprises a switching-on ready indicator, an indicator body, a first linkage part, a second linkage part, a third linkage part, a fourth linkage part, a switching-on ready indicator, a first elastic member, a first mounting part, a limiting block, a limiting chute, a limiting connecting rod and a switching-on indicating rod, wherein the indicating member is 51, the indicator body, the first linkage part, the second linkage part, the third linkage part, the fourth linkage part, the switching-on ready indicator, the first elastic member, the first mounting part, the limiting block, the limiting chute and the indicating connecting rod;
6. A signal generator;
7. A mask 71, an observation window;
100. 200, under-voltage release, 201, release iron core;
301. First direction, 302, second direction, 303, third direction, 304, fourth direction.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1 to 3, the present embodiment provides an operating mechanism of a circuit breaker, which includes a frame 1, and an energy storage unit 2, an opening and closing transmission unit 3, and a trip transmission unit 4 are disposed in the frame 1. The side plate 11 outside rotation of frame 1 is equipped with closing ready indicator 5, is convenient for install and change closing ready indicator 5, has reduced maintenance cost, and can also selectively install closing ready indicator 5, makes the circuit breaker have the function and select the capability, satisfies the diversified demand of circuit breaker. The ready-to-close indicator 5 comprises an indicator body 51, and the indicator body 51 is provided with a first linkage part 52 capable of being linked with the energy storage unit 2, a second linkage part 53 capable of being linked with the opening and closing transmission unit 3 and a third linkage part 54 capable of being linked with the tripping transmission unit 4, so that the connection structure of the ready-to-close indicator 5 and the energy storage unit 2, the opening and closing transmission unit 3 and the tripping transmission unit 4 is simplified.
When the energy storage unit 2 is in the energy storage state, the opening and closing transmission unit 3 is in the opening state and the tripping transmission unit 4 is in the free state, the ready-to-close indicator 5 is in the state of displaying the possible closing. When the energy storage unit 2 is in the energy release state or the opening and closing transmission unit 3 is in the closing state or the tripping transmission unit 4 is in the non-free state, the closing ready indicator 5 is in the state of displaying non-closing. The states of the energy storage unit 2, the opening and closing transmission unit 3 and the tripping transmission unit 4 can enable the ready-to-close indicator 5 to be in a state of displaying being capable of closing or in a state of displaying being incapable of closing, so that an operator can accurately judge whether the circuit breaker is in a state of being capable of closing, and invalid closing is avoided.
Referring to fig. 2 and 3, the indicator body 51 is rotatably connected with the side plate 11 of the frame 1, specifically, a first mounting portion 58 is provided on the indicator body 51, a second mounting portion 12 is provided on the side plate 11 of the frame 1, and the first mounting portion 58 is rotatably connected with the second mounting portion 12, so that the ready-to-close indicator 5 is rotatably connected with the frame 1. Alternatively, the first mounting portion 58 includes a mounting hole provided through the indicator body 51, the second mounting portion 12 includes a mounting shaft perpendicularly connected to the side plate 11 of the frame 1, the mounting shaft is inserted into the mounting hole, and the closing readiness indicator 5 is rotatable about the mounting shaft.
In some embodiments, as shown in connection with fig. 1,2 and 3, the ready-to-close indicator 5 further includes a first elastic member 57, where the first elastic member 57 connects the indicator body 51 and the frame 1, and the first elastic member 57 enables the ready-to-close indicator 5 to be in a state of displaying a closable state when the energy storage unit 2 is in the energy storage state, the opening/closing transmission unit 3 is in the opening state, and the tripping transmission unit 4 is in the free state.
Optionally, the first elastic member 57 is a torsion spring, which is sleeved at one end of the mounting shaft far away from the frame 1, and is capable of limiting the displacement of the indicator body 51 in the axial direction of the mounting shaft, one end of the torsion spring is connected with the indicator body 51, the other end of the torsion spring is connected with the frame 1, and the torsion spring provides a force for enabling the indicator 5 ready for closing to be in a state of displaying closing.
In order to fix the two ends of the torsion spring, a limiting block 59 is arranged on the indicator body 51, a containing groove is arranged on the limiting block 59, and one end of the torsion spring is limited in the containing groove. The side plate 11 of the frame 1 is provided with a limiting shaft 13, one end of the limiting shaft 13 is penetrated with an indicator body 51 and arranged on one side of the indicator body 51, which is away from the frame 1, one end of the limiting shaft 13 is provided with a limiting groove, and the other end of the torsion spring is limited in the limiting groove. In order not to influence the rotation of the ready-to-close indicator 5, the indicator body 51 is provided with a limit chute 510, one end of the limit shaft 13 slides through the limit chute 510, and the limit shaft 13 cannot limit the rotation of the ready-to-close indicator 5.
In some embodiments, the indicator body 51 is provided with a fourth linkage 55, and the signal generator 6 is provided outside the side plate 11 of the frame 1. When the ready-to-close indicator 5 is in a state of displaying a closing possibility, the fourth linkage part 55 triggers the signal generator 6, the signal generator 6 outputs a ready-to-close signal, and the reminding signal is an electric signal, so that an operator can accurately judge whether the circuit breaker is in the state of closing possibility, and invalid closing is avoided. When the ready-to-close indicator 5 is in the state of not being able to close, the fourth linkage 55 cannot trigger the signal generator 6, and the signal generator 6 cannot output the ready-to-close signal to inform the operator that the circuit breaker cannot close at this time.
The signal generator 6 is also arranged on the outer side of the side plate 11 of the frame 1, and the signal generator 6 can be selectively installed, so that the circuit breaker has function matching performance, and the diversified requirements of the circuit breaker are met.
The fourth linkage part 55 includes a trigger bump disposed on a side of the indicator body 51 facing away from the frame 1, and the signal generator 6 is a micro switch, where the trigger bump can contact with a trigger part of the micro switch to trigger the micro switch to output an electrical signal.
In other embodiments, as shown in fig. 4, a ready-to-close indicator 56 is provided on the indicator body 51. When the ready-to-close indicator 5 is in a state of displaying a ready-to-close state, the ready-to-close indicator 56 displays ready-to-close, the display signal is a mechanical signal, and an operator can directly check the information to see whether the ready-to-close indicator can be closed or not, so that the information is visual and clear. When the ready-to-close indicator 5 is in the state of not being able to close, the ready-to-close indicator 56 displays that the ready-to-close is not ready to close, to inform the operator that the circuit breaker cannot close at this time.
Optionally, an indication connecting rod 511 is connected to the indication member body 51, one end of the indication connecting rod 511 is connected to the indication member body 51, and a ready-to-close indication portion 56 is provided at the other end of the indication connecting rod 511. When the ready-to-close indicator 5 is mounted on the outside of the side plate 11 of the frame 1, the end of the indication connecting rod 511 having the ready-to-close indicator 56 extends toward the inside of the frame 1, the outside of the operating mechanism of the circuit breaker is provided with the face mask 7, the position of the face mask 7 corresponding to the ready-to-close indicator 56 is provided with the observation window 71, and the operator can observe the state of the circuit breaker through the observation window 71 (the face mask 7 and the observation window 71 are shown in fig. 5).
With continued reference to fig. 4, the "OK" and "OK" may be displayed on the closing ready indication portion 56, with the "OK" being disposed at an upper portion of the "OK", and the closing ready indication portion 56 being moved up and down to switch the "OK" and "OK". "OK" indicates that the circuit breaker is in a state of being switched on or in a state of being ready for switching on, and "OK" indicates that the circuit breaker is in a state of not being switched on or in a state of not being ready for switching on.
Fonts such as "switchable" and "non-switchable" can also be displayed on the switch-on readiness indicator 56 to inform the operator of the current state of the circuit breaker.
The signal of ready for closing can adopt the mode of outputting the electric signal, the mode of outputting the mechanical signal or the combination of the two modes, so that the signal of ready for closing can be output more accurately.
As shown in fig. 3, 6, 7 and 8, the first linkage part 52 can be linked with the energy storage unit 2, in some embodiments, the first linkage part 52 includes a first protrusion protruding from a side surface of the indicator body 51, a first chute 111 is disposed on the side plate 11 of the frame 1, the first protrusion penetrates the first chute 111 to be linked with the energy storage unit 2 disposed in the frame 1, and the first protrusion can slide along the first chute 111, so that the switch-on ready indicator 5 can rotate. Through set up first lug and energy storage unit 2 linkage on the indicator body 51, simple structure, and indicator body 51 can be connected with energy storage unit 2 through first lug directly, can accurate and accurate control switch-on readiness indicator 5's state.
Alternatively, the energy storage unit 2 comprises a first cam plate 21, the first cam plate 21 being rotatably connected to the frame 1. Specifically, the first cam plate 21 is provided on the cam shaft 22, the cam shaft 22 is rotatably connected to the frame 1, and the first cam plate 21 can rotate with the cam shaft 22.
The first cam piece 21 is provided with a circumferential portion 211 and a groove portion 212, and when the energy storage unit 2 is in the energy storage state, the first protruding block is located at the first end a of the first sliding groove 111 and is opposite to the groove portion 212, or the first protruding block is located at the second end b of the first sliding groove 111 and is located in the groove portion 212. It should be further explained that if the ready-to-close indicator 5 is in the state of displaying the closing possibility, the first protrusion is located at the second end b of the first chute 111 and is disposed in the groove 212, and if the ready-to-close indicator 5 is in the state of displaying the opening possibility, the first protrusion is disposed at the first end a of the first chute 111 and is separated from the groove 212. When the energy storage unit 2 is in the energy storage state, the ready-to-close indicator 5 rotates around the first direction 301, the first protrusion disposed at the second end b of the first chute 111 slides out of the groove 212 to the first end a of the first chute 111, and the fourth linkage 55 does not trigger the signal generator 6 and/or the ready-to-close indicator 56 to indicate that the ready-to-close is not ready. The ready-to-close indicator 5 rotates about the second direction 302, the second direction 302 is opposite to the first direction 301, the first protrusion disposed at the first end a of the first chute 111 slides to the second end b of the first chute 111, and the first protrusion slides into the groove 212, and the fourth linkage 55 triggers the signal generator 6 and/or the ready-to-close indicator 56 to indicate ready-to-close.
When the energy storage unit 2 is in the energy release state, the first protrusion is at the first end a of the first chute 111 and abuts against the circumferential portion 211. Specifically, when the energy storage unit 2 releases energy, the first cam piece 21 rotates around the first direction 301, so that the first protrusion gradually breaks away from the groove portion 212, and as the first cam piece 21 rotates, the circumferential portion 211 contacts the first protrusion and pushes the first protrusion to slide from the second end b to the first end a of the first chute 111, the closing ready indication portion 56 rotates around the first direction 301, and the fourth linkage portion 55 does not trigger the signal generator 6 and/or the closing ready indication portion 56 to display that closing is not ready.
The energy storage unit 2 further comprises a second cam piece 23 and an energy storage display indicator 24, the second cam piece 23 is parallel to the first cam piece 21 and is arranged on the cam shaft 22 at intervals, and the second cam piece 23 and the energy storage display indicator 24 cooperate to enable the energy storage display indicator 24 to display that the energy storage unit 2 is in an energy storage state or an energy release state. The cooperating structure and principle of the energy storage display indicator 24 and the second cam plate 23 are conventional, and will not be described in detail herein. The energy storage unit 2 also comprises other structures, which are not described in detail here, as they are of prior art.
As shown in fig. 3 and fig. 9 to fig. 12, the second linkage part 53 is linked with the opening and closing transmission unit 3, in some embodiments, the second linkage part 53 includes a second protrusion protruding from a side surface of the indicator body 51, a second chute 112 is disposed on the side plate 11 of the frame 1, the second protrusion penetrates the second chute 112 and can be linked with the opening and closing transmission unit 3, and the second protrusion can slide along the second chute 112, so that the ready-to-close indicator 5 can rotate. Through set up second lug and divide-shut brake transmission unit 3 linkage on indicator body 51, simple structure, and indicator body 51 can be directly connected with divide-shut brake transmission unit 3 through the second lug, can accurate and accurate control switch on readiness indicator 5's state.
Optionally, the opening and closing transmission unit 3 includes an opening and closing indicator 31 and a main shaft 32, where the opening and closing indicator 31 and the main shaft 32 are respectively connected with the frame 1 in a rotating manner, the opening and closing indicator 31 includes a first linkage plate 311, and the main shaft 32 is provided with a main shaft cantilever 321.
When the opening and closing transmission unit 3 is in the closing state, the main shaft cantilever 321 abuts against one side of the first linkage plate 311, the other side of the first linkage plate 311 abuts against the second bump, and the second bump is disposed at the first end c of the second chute 112. Specifically, during the closing process of the circuit breaker, the main shaft 32 rotates around the second direction 302, so as to drive the main shaft cantilever 321 to rotate around the second direction 302, and the main shaft cantilever 321 is pressed against one side of the first linkage plate 311, and along with the rotation of the main shaft cantilever 321, the first linkage plate 311 rotates around the first direction 301, and the first linkage plate 311 pushes the second bump to slide from the second end d to the first end c of the second chute 112, so as to drive the ready-to-close indicator 5 to rotate and be in a state of displaying non-closing. The opening/closing indicator 31 further includes an opening/closing display portion 312, and at this time, the opening/closing display portion 312 displays "closing" to indicate that the circuit breaker is in a closed state.
When the opening and closing transmission unit 3 is in the opening state, the main shaft cantilever 321 is separated from one side of the first linkage plate 311, and the second bump is disposed at the first end c or the second end d of the second chute 112. Specifically, during the opening process of the circuit breaker, the main shaft 32 rotates around the first direction 301, so as to drive the main shaft cantilever 321 to rotate around the first direction 301, the main shaft cantilever 321 gradually no longer applies pressure on the first linkage plate 311 and is separated from the first linkage plate 311, the first linkage plate 311 rotates around the second direction 302, and the opening and closing display portion 312 displays "opening and closing" so as to indicate that the circuit breaker is in an opening state. If the energy storage unit 2 is in the energy storage state and the trip transmission unit 4 is in the free state, the second bump slides from the first end c to the second end d of the second chute 112, the second bump can be abutted against the other side of the first linkage plate 311, the ready-to-close indicator 5 rotates and is in a state of displaying the on-state, and if the energy storage unit 2 is in the energy release state or the trip transmission unit 4 is in the non-free state, the second bump is placed at the position of the first end c of the second chute 112, the ready-to-close indicator 5 does not rotate and is in a state of displaying the non-on-state.
The switch-on/off indicator 31 is connected with the second elastic member 33, and during the switch-on process of the circuit breaker, the switch-on/off indicator 31 rotates around the first direction 301, the second elastic member 33 stores energy, and during the switch-off process of the circuit breaker, after the main shaft cantilever 321 is separated from the first linkage plate 311, the second elastic member 33 releases energy to enable the switch-on/off indicator 31 to rotate around the second direction 302 until the switch-off display portion displays "switch-off". Optionally, the second elastic member 33 is a compression spring, which is stretched during the closing process of the circuit breaker and is reset during the opening process of the circuit breaker.
As shown in fig. 3 and 13-16, the third linkage part 54 can be linked with the trip transmission unit 4, and in some embodiments, the third linkage part 54 includes a third bump disposed at one end of the indicator body 51, and the third bump is disposed outside the frame 1. The side plate 11 of the frame 1 is provided with a third sliding groove 113, one end of the trip transmission unit 4 is penetrated through the third sliding groove 113 and can be linked with the third convex block, and one end of the trip transmission unit 4 can slide along the third sliding groove 113, so that the closing ready indicator 5 can rotate. The third lug is arranged on the indicator body 51 to be in linkage with the tripping transmission unit 4, so that the structure is simple, and the indicator body 51 can be directly connected with the tripping transmission unit 4 through the third lug, so that the state of the indicator 5 ready for switching on can be accurately and precisely controlled.
Optionally, the trip transmission unit 4 includes a brake separating half shaft 41, a linkage shaft 42 is disposed on the brake separating half shaft 41, and the linkage shaft 42 penetrates through the third chute 113.
When the trip transmission unit 4 is in the free state, the linkage shaft 42 is disposed at the first end e of the third sliding slot 113. Specifically, during the process of switching the trip transmission unit 4 from the non-free state to the free state, the brake release half shaft 41 rotates around the third direction 303, the linkage shaft 42 slides from the second end f to the first end e of the third sliding chute 113, and the linkage shaft 42 does not exert pressure on the third bump. If the energy storage unit 2 is in the energy storage state and the opening/closing transmission unit 3 is in the opening state, the ready-to-close indicator 5 rotates around the fourth direction 304 until the ready-to-close indicator 5 is in the display-possible-closing state, and the fourth direction 304 is opposite to the third direction 303. If the energy storage unit 2 is in the energy release state or the opening and closing transmission unit 3 is in the closing state, the closing ready indicator 5 does not rotate, and the closing ready indicator 5 is in a state of displaying non-closing.
When the trip transmission unit 4 is in the non-free state, the linkage shaft 42 is disposed at the second end f of the third sliding slot 113 to press against the third bump. Specifically, during the process of switching the trip transmission unit 4 from the free state to the non-free state, the brake release half shaft 41 rotates around the fourth direction 304, the linkage shaft 42 slides from the first end e to the second end f of the third sliding chute 113, the linkage shaft 42 applies pressure on the third bump, and the brake on ready indicator 5 rotates around the third direction 303 to be in the display non-brake release state.
The brake-separating half shaft 41 is further provided with a brake-separating cantilever 43, the circuit breaker comprises an undervoltage release 200, when the undervoltage release 200 is in a power-off or undervoltage non-working state, a release iron core 201 of the undervoltage release 200 stretches out to be capable of propping against the brake-separating cantilever 43 and pushing the brake-separating cantilever 43 to rotate around a fourth direction 304, and then the brake-separating half shaft 41 is driven to rotate around the fourth direction 304, the linkage shaft 42 slides from a first end e to a second end f of the third sliding groove 113, and the release transmission unit 4 is in a non-free state. When the under-voltage release 200 is in the electrified working state, the release iron core 201 of the under-voltage release 200 is retracted, the release iron core 201 is not pressed against the release cantilever 43, the release semi-shaft 41 rotates around the third direction 303, the linkage shaft 42 slides from the second end f of the third sliding groove 113 to the first end e, and the release transmission unit 4 is in a free state.
As shown in fig. 17 and 18, the circuit breaker is in a ready state for closing, and three conditions need to be satisfied simultaneously, namely, 1, the energy storage unit 2 is in an energy storage state, 2, the opening and closing transmission unit 3 is in an opening state, and 3, the tripping transmission unit 4 is in a free state. When all of the above three conditions are satisfied at the same time, the ready-to-close indicator 5 is in a state where it is displayed to be closed, that is, "OK" is displayed on the ready-to-close indicator 56 of the ready-to-close indicator 5. When any one of the above three conditions is not satisfied, the closing ready indicator 5 is in a state of showing non-closing, that is, "OK" is displayed on the closing ready indicator portion 56 of the closing ready indicator 5.
With continued reference to fig. 1, the present embodiment further provides a circuit breaker, including a circuit breaker body 100 and an operating mechanism of the circuit breaker according to any one of the above aspects, where the operating mechanism of the circuit breaker is disposed on the circuit breaker body 100.
The circuit breaker further comprises an under-voltage release 200, wherein the under-voltage release 200 is matched with the brake separating cantilever 43 of the brake separating half shaft 41, and the specific matching relationship is as described above.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (6)
1. An operating mechanism of a circuit breaker, comprising:
The device comprises a frame (1), wherein an energy storage unit (2), an opening and closing transmission unit (3) and a tripping transmission unit (4) are arranged in the frame (1);
the automatic switching-on device comprises a switching-on ready indicator (5), wherein the switching-on ready indicator is rotationally arranged on the outer side of a side plate (11) of a frame (1), the switching-on ready indicator (5) comprises an indicator body (51), a first linkage part (52) capable of being linked with an energy storage unit (2), a second linkage part (53) capable of being linked with a switching-on/switching-off transmission unit (3) and a third linkage part (54) capable of being linked with a tripping transmission unit (4) are arranged on the indicator body (51), an indication connecting rod (511) is further connected on the indicator body (51), one end of the indication connecting rod (511) is connected with the indicator body (51), a switching-on ready indicator part (56) is arranged at the other end of the indication connecting rod (511), one end of the indication connecting rod (511) provided with the switching-on ready indicator part (56) extends towards the inner side of the frame (1), and the switching-on ready indicator part (56) is used for displaying a switching-on state or a switching-off state;
The first linkage part (52) comprises a first lug protruding from the side surface of the indicator body (51), a first chute (111) is arranged on a side plate (11) of the frame (1), the first lug penetrates through the first chute (111) and can be linked with the energy storage unit (2), and the first lug can slide along the first chute (111);
The energy storage unit (2) comprises a first cam plate (21), a second cam plate (23), an energy storage display indicator (24) and a cam shaft (22), wherein the cam shaft (22) is rotationally connected with the frame (1), the first cam plate (21) and the second cam plate (23) are parallel and are arranged on the cam shaft (22) at intervals, the second cam plate (23) is matched with the energy storage display indicator (24) to enable the energy storage display indicator (24) to display that the energy storage unit (2) is in an energy storage state or an energy release state, and a circumference part (211) and a groove part (212) are arranged on the first cam plate (21);
The energy storage unit (2) is in an energy storage state, the first protruding block is positioned at the first end of the first chute (111) and is opposite to the groove part (212), or the first protruding block is positioned at the second end of the first chute (111) and is positioned in the groove part (212), the energy storage unit (2) is in an energy release state, and the first protruding block is positioned at the first end of the first chute (111) and is propped against the circumference part (211);
The second linkage part (53) comprises a second lug protruding to the side surface of the indicator body (51), a second chute (112) is arranged on the side plate (11) of the frame (1), the second lug penetrates through the second chute (112) and can be linked with the opening and closing transmission unit (3), and the second lug can slide along the second chute (112);
the opening and closing transmission unit (3) comprises an opening and closing indicating piece (31) and a main shaft (32), the opening and closing indicating piece (31) and the main shaft (32) are respectively connected with the frame (1) in a rotating mode, the opening and closing indicating piece (31) comprises a first linkage plate (311) and an opening and closing display part (312), and a main shaft cantilever (321) is arranged on the main shaft (32);
When the opening and closing transmission unit (3) is in a closing state, the main shaft cantilever (321) is propped against one side of the first linkage plate (311), the other side of the first linkage plate (311) is propped against the second convex block, the second convex block is arranged at the first end of the second chute (112), the opening and closing display part (312) displays closing, when the opening and closing transmission unit (3) is in an opening state, the main shaft cantilever (321) is separated from one side of the first linkage plate (311), the second convex block is arranged at the first end or the second end of the second chute (112), and the opening and closing display part (312) displays opening and closing;
The third linkage part (54) comprises a third bump arranged at one end of the indicator body (51), a third chute (113) is arranged on a side plate (11) of the frame (1), one end of the tripping transmission unit (4) penetrates through the third chute (113) and can be linked with the third bump, and one end of the tripping transmission unit (4) can slide along the third chute (113);
When the energy storage unit (2) is in an energy storage state, the opening and closing transmission unit (3) is in an opening state and the tripping transmission unit (4) is in a free state, the ready-to-close indicator (5) is in a state capable of displaying closing;
When the energy storage unit (2) is in an energy release state or the opening and closing transmission unit (3) is in a closing state or the tripping transmission unit (4) is in a non-free state, the closing ready indicator (5) is in a state of displaying non-closing.
2. The operating mechanism of the circuit breaker according to claim 1, characterized in that a fourth linkage part (55) is arranged on the indicator body (51), and a signal generator (6) is arranged outside a side plate (11) of the frame (1);
The fourth linkage part (55) triggers the signal generator (6) when the ready-to-close indicator (5) is in a state of displaying a closing;
When the ready-to-close indicator (5) is in a state in which it is not possible to close, the fourth linkage (55) cannot trigger the signal generator (6).
3. The operating mechanism of a circuit breaker according to claim 1, wherein,
When the closing ready indicator (5) is in a state of displaying closing possibility, the closing ready indicator (56) displays closing ready;
when the closing ready indicator (5) is in a state of displaying non-closing, the closing ready indicator (56) displays that closing is not ready.
4. The operating mechanism of the circuit breaker according to claim 1, characterized in that the trip transmission unit (4) comprises a brake release half shaft (41), a linkage shaft (42) is arranged on the brake release half shaft (41), and the linkage shaft (42) penetrates through the third sliding groove (113);
The tripping transmission unit (4) is in a free state, the linkage shaft (42) is arranged at the first end of the third sliding groove (113), the tripping transmission unit (4) is in a non-free state, and the linkage shaft (42) is arranged at the second end of the third sliding groove (113) and abuts against the third protruding block.
5. The operating mechanism of a circuit breaker according to claim 1, characterized in that the switch-on ready indicator (5) further comprises a first elastic member (57), the first elastic member (57) connecting the indicator body (51) and the frame (1), the first elastic member (57) putting the switch-on ready indicator (5) in a display-switchable state when the energy storage unit (2) is in an energy storage state, the switch-off transmission unit (3) is in a switch-off state and the trip transmission unit (4) is in a free state.
6. Circuit breaker, characterized in that it comprises a circuit breaker body (100) and an operating mechanism of the circuit breaker according to any of claims 1-5, said operating mechanism of the circuit breaker being arranged on said circuit breaker body (100).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310543645.9A CN116504592B (en) | 2023-05-15 | 2023-05-15 | Operating mechanism of circuit breaker and circuit breaker |
| US18/879,986 US20250391625A1 (en) | 2023-05-15 | 2024-02-07 | Operating mechanism for circuit breaker and circuit breaker |
| EP24806115.2A EP4528778A4 (en) | 2023-05-15 | 2024-02-07 | Circuit breaker operating mechanism and circuit breaker |
| PCT/CN2024/076616 WO2024234752A1 (en) | 2023-05-15 | 2024-02-07 | Circuit breaker operating mechanism and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310543645.9A CN116504592B (en) | 2023-05-15 | 2023-05-15 | Operating mechanism of circuit breaker and circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116504592A CN116504592A (en) | 2023-07-28 |
| CN116504592B true CN116504592B (en) | 2025-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310543645.9A Active CN116504592B (en) | 2023-05-15 | 2023-05-15 | Operating mechanism of circuit breaker and circuit breaker |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20250391625A1 (en) * | 2023-05-15 | 2025-12-25 | Shanghai CHINT Low Voltage Electrical Technology Co., Ltd. | Operating mechanism for circuit breaker and circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280318A (en) * | 2010-06-12 | 2011-12-14 | 上海电科电器科技有限公司 | Indicating device for closable state |
| CN103839733A (en) * | 2014-03-25 | 2014-06-04 | 大全集团有限公司 | Closeable state indicating device of breaker and operating mechanism cooperating with closeable indicating device |
| CN206893469U (en) * | 2017-05-05 | 2018-01-16 | 河南森源电气股份有限公司 | A kind of integrated spring operating mechanism |
| CN220155461U (en) * | 2023-05-15 | 2023-12-08 | 上海正泰智能科技有限公司 | Operating mechanism of circuit breaker and circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6246304B1 (en) * | 1999-03-26 | 2001-06-12 | Airpax Corporation, Llc | Trip indicating circuit breaker |
| CN101510488B (en) * | 2008-02-14 | 2012-01-11 | 西门子公司 | Circuit breaker ready-to-close indicator component |
-
2023
- 2023-05-15 CN CN202310543645.9A patent/CN116504592B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280318A (en) * | 2010-06-12 | 2011-12-14 | 上海电科电器科技有限公司 | Indicating device for closable state |
| CN103839733A (en) * | 2014-03-25 | 2014-06-04 | 大全集团有限公司 | Closeable state indicating device of breaker and operating mechanism cooperating with closeable indicating device |
| CN206893469U (en) * | 2017-05-05 | 2018-01-16 | 河南森源电气股份有限公司 | A kind of integrated spring operating mechanism |
| CN220155461U (en) * | 2023-05-15 | 2023-12-08 | 上海正泰智能科技有限公司 | Operating mechanism of circuit breaker and circuit breaker |
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| CN116504592A (en) | 2023-07-28 |
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