CN114334570B - Energy storage closing structure of circuit breaker and circuit breaker thereof - Google Patents
Energy storage closing structure of circuit breaker and circuit breaker thereof Download PDFInfo
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- CN114334570B CN114334570B CN202111677193.0A CN202111677193A CN114334570B CN 114334570 B CN114334570 B CN 114334570B CN 202111677193 A CN202111677193 A CN 202111677193A CN 114334570 B CN114334570 B CN 114334570B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 9
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an energy storage closing structure of a circuit breaker and the circuit breaker thereof, relates to the technical field of circuit breakers, and mainly solves the problem that the existing circuit breaker does not have a proper automatic closing function; the device comprises a breaker shell and a gate body which is rotatably installed, wherein an energy storage mechanism is arranged in the breaker shell, and the automatic closing operation of the tripped gate body is realized under the high-capacity capacitance matching by combining an electric telescopic machine, a telescopic column, a guide rail and a closing spring; through setting up the joint piece at the edge of the floodgate body, utilize joint piece and the locking of closing a floodgate chucking mechanism cooperation each other, accomplish the automatic chucking operation of floodgate body to switch on power transmission mechanism, accomplish power transmission operation, drive trip trigger lever through the mechanism of propping open and prop open to both sides, and then drive right angle frame and locking piece to both sides motion, the trip outage operation is accomplished in joint piece and locking piece separation.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an energy storage closing structure of a circuit breaker and the circuit breaker.
Background
Low voltage circuit breakers, also known as automatic air switches, can be used to switch on and off a load circuit, and also to control an infrequently started motor. The circuit breaker generally comprises a shell, and an operating mechanism, a moving contact, a fixed contact, a release and the like which are arranged in the shell, wherein the moving contact can be driven to move to be connected with or disconnected from the fixed contact through the operating mechanism, so that a main circuit connected with the fixed contact and the moving contact is respectively conducted or disconnected. The release can make the armature rotate by absorbing the armature to carry out release operation on the lock catch arranged on the operating mechanism when the main loop connected with the moving contact and the fixed contact is overloaded or short-circuited, so that the fixed contact and the moving contact are disconnected.
The existing circuit breaker has no proper closing mechanism after tripping, and can only be closed manually, so that accidents are easy to cause in some high-load power distribution cabinets, and therefore, the energy storage closing structure of the circuit breaker and the circuit breaker thereof are provided.
Disclosure of Invention
The invention aims to provide an energy storage closing structure of a circuit breaker and the circuit breaker thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an energy storage combined floodgate structure of circuit breaker, includes the circuit breaker casing, be provided with the floodgate body in the circuit breaker casing, the floodgate body pass through the swivel axis with rotate between the circuit breaker casing and install, include:
the energy storage mechanism comprises a capacitor arranged inside a breaker shell, the capacitor is a high-capacity capacitor and is used for driving the electric quantity of the brake body to be singly switched on, the capacitor is connected with an electric telescopic machine, a telescopic column is connected to the electric telescopic machine, a push block is arranged at the tail end of the telescopic column and arranged in a guide rail, a switching-on spring is arranged in the guide rail, the lower side of the guide rail is horizontally arranged, the tail end of the guide rail is bent and turned to the brake body, a tripping seat is arranged at the tail end of the guide rail, the switching-on spring is connected with a connector at the bottom of the brake body, and clamping blocks are symmetrically arranged on the side edges of the brake body and further comprise a switching-on clamping mechanism and a power transmission mechanism.
As a further scheme of the invention: the power transmission mechanism comprises a switch-on device, a matching groove is formed in the switch-on device, a hemispherical top block is arranged on the upper surface of the brake body, the hemispherical top block is matched with the matching groove, hemispherical beads are arranged in the matching groove, the hemispherical beads are connected with a connecting rod, the connecting rod is connected with a conductive matching block, the conductive matching block is slidably mounted in a mounting cylinder, a first spring is arranged between the mounting cylinder and the end part of the conductive matching block, and conductive columns are arranged on two sides of the mounting cylinder.
As still further aspects of the invention: the utility model discloses a circuit breaker, including circuit breaker casing, right angle frame, lock block, right angle frame, the clamping block and the cooperation of closing a floodgate chucking mechanism are accomplished, closing a floodgate chucking mechanism includes the mounting bracket of fixed mounting inside the circuit breaker casing, the mounting bracket symmetry sets up the both sides of the floodgate body, movable mounting has the right angle frame on the mounting bracket, the right angle department of right angle frame is provided with the sideframe, the lock block is installed to the sideframe rotation, the downside of lock block and the base of right angle frame mutually support, the last side of lock block is provided with first slope, the lower side of lock block is provided with the second slope, be provided with tripping driving mechanism on the right angle frame, closing a floodgate chucking mechanism and power transmission mechanism cooperation installation.
As still further aspects of the invention: the edge of right angle frame is provided with the cooperation slider, the mounting bracket is in the height of cooperation slider is provided with the removal groove, be provided with the second spring between removal groove and the cooperation slider, the right angle frame is in inwards draw close under the pretension of second spring and block the joint piece.
As still further aspects of the invention: and a torsion spring is arranged between the brake body and the rotary shaft and used for breaking the brake under the action of the torsion spring after tripping.
As still further aspects of the invention: the circumference of electrically conductive cooperation piece is provided with the graphite ring that is used for reliable direction and lubrication.
A circuit breaker contains the energy storage switching-on structure of above-mentioned circuit breaker, still includes:
the tripping driving mechanism comprises tripping trigger rods which are symmetrically arranged, the edges of the tripping trigger rods are in contact with the inner side edge of the right-angle frame, the end parts of the tripping trigger rods are rotationally connected with the mounting disc, torsion springs are arranged between the tripping trigger rods and the mounting disc, the tripping trigger rods are mutually close under the action of the torsion springs, and a spreading mechanism is arranged between the tripping trigger rods.
As still further aspects of the invention: the opening mechanism comprises a fixing frame, a bidirectional cam is arranged in the fixing frame, a moving block is arranged in the fixing frame, a jacking column is arranged on the moving block and penetrates out of the fixing frame, the jacking column is positioned on the fixing frame and the moving block, a third spring is sleeved on the jacking column, and the bidirectional cam is connected with a driving motor.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the energy storage mechanism is arranged in the circuit breaker shell, and the automatic closing operation of the tripped gate body is realized by combining the electric telescopic machine, the telescopic column, the guide rail and the closing spring under the high-capacity capacitance matching; the edge of the brake body is provided with a clamping block, and the clamping block and the closing clamping mechanism are used for mutually matching and locking to finish automatic clamping operation of the brake body for closing, so that the power transmission mechanism is connected to finish power transmission operation; through setting up tripping driving mechanism, when the electric current surpasses circuit bearing capacity, through driving motor drive bi-directional cam rotation to make the jack-prop outwards stretch out, tripping trigger lever drives the right angle frame and opens, and joint piece and locking piece separation accomplish tripping operation, have effectively realized automatic closing and reliable power transmission operation after the circuit breaker trips through above-mentioned structure.
Drawings
Fig. 1 is a schematic diagram of an energy storage closing structure of a circuit breaker and the circuit breaker thereof.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic plan view of an energy storage closing structure of a circuit breaker and a closing clamping mechanism in the circuit breaker.
Fig. 4 is a schematic diagram of an energy storage closing structure of a circuit breaker and a trip driving mechanism in the circuit breaker.
Fig. 5 is a schematic diagram of an energy storage closing structure of a circuit breaker and an elevation structure of a closing clamping mechanism in the circuit breaker.
In the figure: the circuit breaker comprises a circuit breaker shell, a gate body, a 3 closing limiter, a 4 capacitor, a 5 electric telescopic machine, a 6 telescopic column, a 7 push block, a 8 guide rail, a 9 closing spring, a 10 tripping seat, a 11 connector, a 12 shaft, a 13 clamping block, a 130 first slope surface, a 14 hemispherical top block, a 15 switch, a 16 matching groove, a 17 hemispherical bead, a 18 connecting rod, a 19 mounting cylinder, a 20 conductive matching block, a 21 first spring, a 22 conductive column, a 23 graphite ring, a 24 mounting frame, a 25 right-angle frame, a 26 locking block, a 260 second slope surface, a 27 side frame, a 28 matching slide block, a 29 moving groove, a 290 second spring, a 30 tripping trigger lever, a 31 mounting disc, a 32 torsion spring, a 33 top column, a 34 fixing frame, a 35 moving block, a 36 third spring and a 37 bidirectional cam.
Detailed Description
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
As shown in fig. 1 to 5, an energy storage closing structure of a circuit breaker includes a circuit breaker housing 1, a gate body 2 is disposed in the circuit breaker housing 1, the gate body 2 is rotatably mounted between the circuit breaker housing 1 through a rotation shaft 12, and includes:
the energy storage mechanism comprises a capacitor 4 arranged inside a breaker shell 1, the capacitor 4 is a large-capacity capacitor 4 and is used for driving the electric quantity of the brake body 2 to be singly switched on, the capacitor 4 is connected with an electric telescopic machine 5, the electric telescopic machine 5 is connected with a telescopic column 6, the tail end of the telescopic column 6 is provided with a push block 7, the push block 7 is arranged in a guide rail 8, a switching-on spring 9 is arranged in the guide rail 8, the lower side of the guide rail 8 is horizontally arranged, the tail end of the guide rail 8 is bent and turned to the brake body 2, the tail end of the guide rail 8 is provided with a tripping seat 10, the switching-on spring 9 is connected with a connector 11 at the bottom of the brake body 2, and the side edge of the brake body 2 is symmetrically provided with a clamping block 13 and further comprises a switching-on clamping mechanism and a power transmission mechanism.
Specifically, the electric quantity is stored through the capacitor 4 with large capacity, when the capacitor 4 needs to be switched on after tripping, the control host is combined to control the discharging of the capacitor 4 to drive the electric telescopic machine 5 to move, the guide rail 8 and the switching-on spring 9 are matched to move, the gate body 2 is pushed to rise under the action of the guide rail 8 and the switching-on spring 9, and the clamping block 13 is combined to be matched with the switching-on clamping mechanism to finish the power transmission operation of the power transmission mechanism.
As a further embodiment of the present invention, the power transmission mechanism includes a switch 15, a mating groove 16 is provided on the switch 15, a hemispherical top block 14 is provided on the upper surface of the gate body 2, the hemispherical top block 14 is mated with the mating groove 16, a hemispherical bead 17 is provided in the mating groove 16, the hemispherical bead 17 is connected with a connecting rod 18, the connecting rod 18 is connected with a conductive mating block 20, the conductive mating block 20 is slidably mounted in a mounting cylinder 19, a first spring 21 is provided between the mounting cylinder 19 and an end of the conductive mating block 20, and conductive posts 22 are provided on two sides of the mounting cylinder 19.
Specifically, the hemispherical top block 14 is used for propping against the hemispherical bead 17, so that the conductive matching block 20 moves, and the conductive matching block 20 is connected with the conductive column 22 at the end of the travel to finish power transmission.
More specifically, the first spring 21 is arranged at the end of the conductive matching block 20, so that reliable power failure after tripping can be ensured, and incomplete power failure is avoided.
As a still further embodiment of the present invention, the clamping block 13 is matched with a closing clamping mechanism to complete closing, the closing clamping mechanism comprises a mounting frame 24 fixedly installed inside the circuit breaker housing 1, the mounting frame 24 is symmetrically arranged at two sides of the gate body 2, a right-angle frame 25 is movably installed on the mounting frame 24, a side frame 27 is arranged at a right angle position of the right-angle frame 25, a locking block 26 is rotatably installed on the side frame 27, the lower side of the locking block 26 is matched with the bottom edge of the right-angle frame 25, a first slope surface 130 is arranged at the upper side edge of the clamping block 13, a second slope surface 260 is arranged at the lower side edge of the locking block 26, a tripping driving mechanism is arranged on the right-angle frame 25, and the closing clamping mechanism is matched with the power transmission mechanism.
Specifically, when the brake body 2 rotates and rises, the locking block 26 rotates under the pushing of the locking block 13 through the first slope surface 130 on the locking block 13 and the second slope surface 260 on the locking block 26, and then is separated from the locking block 13 and falls down to lock the locking block 13, so that reliable closing power transmission operation is ensured.
As a still further embodiment of the present invention, the edge of the right-angle frame 25 is provided with a matching sliding block 28, the mounting frame 24 is provided with a moving groove 29 at the height of the matching sliding block 28, a second spring 290 is arranged between the moving groove 29 and the matching sliding block 28, and the right-angle frame 25 is inwards closed to clamp the clamping block 13 under the pre-tightening of the second spring 290.
Specifically, in order to facilitate the subsequent tripping and power-off operation, the edge of the right-angle frame 25 is provided with a matching sliding block 28 for movable installation, and meanwhile, a second spring 290 is provided to ensure reliable locking during closing.
As a still further embodiment of the present invention, a torsion spring 32 is disposed between the gate body 2 and the rotating shaft 12, so that the gate body 2 is opened and closed under the action of the torsion spring 32 after tripping.
Specifically, the torsion spring 32 is arranged to ensure that the gate body 2 is reliably separated after tripping, and the breaking and the power-off are completed.
As a still further embodiment of the invention, the conductive mating blocks 20 are circumferentially provided with graphite rings 23 for reliable guiding and lubrication.
A circuit breaker contains the energy storage switching-on structure of above-mentioned circuit breaker, still includes:
the trip driving mechanism comprises trip trigger rods 30 which are symmetrically arranged, the edges of the trip trigger rods 30 are in contact with the inner side edges of the right-angle frames 25, the end parts of the trip trigger rods 30 are rotationally connected with the mounting discs 31, torsion springs 32 are arranged between the trip trigger rods 30 and the mounting discs 31, the trip trigger rods 30 are mutually close under the action of the torsion springs 32, and a spreading mechanism is arranged between the trip trigger rods 30.
Specifically, the trip trigger lever 30 is driven to be spread to two sides by the spreading mechanism, so that the right-angle frame 25 and the locking block 26 are driven to move to two sides, and the clamping block 13 and the locking block 26 are separated to complete the trip power-off operation.
As still a further embodiment of the present invention, the opening mechanism includes a fixing frame 34, the fixing frame 34 is hollow, a bidirectional cam 37 is disposed in the fixing frame 34, a moving block 35 is disposed in the fixing frame 34, a jack post 33 is disposed on the moving block 35, the jack post 33 penetrates the fixing frame 34, a portion of the jack post 33 located in the fixing frame 34 and the moving block 35 is sleeved with a third spring 36, and the bidirectional cam 37 is connected with a driving motor.
Specifically, the opening mechanism is realized by using the rotation of the bidirectional cam 37, the bidirectional cam 37 can trip by rotating 180 degrees each time under the action of the driving motor, and meanwhile, the setting of the third spring 36 can ensure that the post 33 is retracted after tripping, and the tripping trigger rod 30 is folded under the action of the torsion spring 32, so that the normal operation of the closing clamping mechanism is facilitated when the next closing is performed.
The working principle of the embodiment of the invention is as follows:
as shown in fig. 1-5, an energy storage mechanism is arranged in a breaker shell 1, and an electric telescopic machine 5 and a telescopic column 6 are combined with a guide rail 8 and a closing spring 9, so that automatic closing operation of a tripped gate body 2 is realized under the cooperation of a large-capacity capacitor 4; the clamping block 13 is arranged at the edge of the brake body 2, and the clamping block 13 is matched with the closing clamping mechanism for locking, so that the automatic clamping operation of the brake body 2 for closing is completed, the power transmission mechanism is connected, and the power transmission operation is completed; through setting up tripping driving mechanism, when the electric current surpasses the circuit bearing capacity, through driving motor drive bi-directional cam 37 rotation to make jack-prop 33 outwards stretch out, tripping trigger bar 30 drives right angle frame 25 and opens, and joint piece 13 separates with locking piece 26, accomplishes tripping operation, has effectively realized automatic closing and reliable power transmission operation after the circuit breaker trips through above-mentioned structure.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The utility model provides an energy storage closing structure of circuit breaker, includes circuit breaker casing (1), be provided with floodgate body (2) in circuit breaker casing (1), floodgate body (2) through pivot (12) with rotate between circuit breaker casing (1) and install, its characterized in that includes:
the energy storage mechanism comprises a capacitor (4) arranged inside a breaker shell (1), the capacitor (4) is a large-capacity capacitor (4) and is used for driving the electric quantity of a single closing of a gate body (2), the capacitor (4) is connected with an electric telescopic machine (5), a telescopic column (6) is connected to the electric telescopic machine (5), the tail end of the telescopic column (6) is provided with a push block (7), the push block (7) is arranged in a guide rail (8), a closing spring (9) is arranged in the guide rail (8), the lower side of the guide rail (8) is horizontally arranged, the tail end of the guide rail (8) is bent and turned to a gate body (2), the tail end of the guide rail (8) is provided with a tripping seat (10), the closing spring (9) is connected with a connector (11) at the bottom of the gate body (2), and the side edge of the gate body (2) is symmetrically provided with a clamping block (13) and further comprises a closing mechanism and a power transmission mechanism.
The power transmission mechanism comprises a switch (15), wherein a matching groove (16) is formed in the switch (15), a hemispherical top block (14) is arranged on the upper surface of the brake body (2), the hemispherical top block (14) is matched with the matching groove (16), a hemispherical bead (17) is arranged in the matching groove (16), the hemispherical bead (17) is connected with a connecting rod (18), the connecting rod (18) is connected with a conductive matching block (20), the conductive matching block (20) is slidably arranged in a mounting cylinder (19), a first spring (21) is arranged between the mounting cylinder (19) and the end part of the conductive matching block (20), and conductive columns (22) are arranged on two sides of the mounting cylinder (19);
the automatic switching-on device is characterized in that the clamping block (13) is matched with the switching-on clamping mechanism to finish switching-on, the switching-on clamping mechanism comprises a mounting frame (24) fixedly mounted inside a circuit breaker shell (1), the mounting frame (24) is symmetrically arranged on two sides of the circuit breaker body (2), a right-angle frame (25) is movably mounted on the mounting frame (24), a side frame (27) is arranged at a right angle position of the right-angle frame (25), a locking block (26) is rotatably mounted on the side frame (27), the lower side of the locking block (26) is matched with the bottom edge of the right-angle frame (25), a first slope surface (130) is arranged on the upper side edge of the clamping block (13), a second slope surface (260) is arranged on the lower side edge of the locking block (26), and a tripping driving mechanism is arranged on the right-angle frame (25) and is matched with the power transmission mechanism;
the edge of right angle frame (25) is provided with cooperation slider (28), mounting bracket (24) are in the height of cooperation slider (28) is provided with removal groove (29), be provided with second spring (290) between removal groove (29) and cooperation slider (28), right angle frame (25) inwards draw close under the pretension of second spring (290) card joint piece (13).
2. The energy storage closing structure of the circuit breaker according to claim 1, wherein a torsion spring (32) is arranged between the gate body (2) and the rotating shaft (12) for opening and closing the gate body (2) under the action of the torsion spring (32) after tripping.
3. The energy-storing closing structure of a circuit breaker according to claim 1, characterized in that the conductive mating blocks (20) are circumferentially provided with graphite rings (23) for reliable guiding and lubrication.
4. A circuit breaker comprising an energy storing closing structure of the circuit breaker as claimed in any one of claims 1-3, further comprising:
the tripping driving mechanism comprises tripping trigger rods (30) which are symmetrically arranged, the edges of the tripping trigger rods (30) are in contact with the inner side edges of the right-angle frames (25), the end parts of the tripping trigger rods (30) are rotationally connected with the mounting discs (31), torsion springs (32) are arranged between the tripping trigger rods (30) and the mounting discs (31), the tripping trigger rods (30) are mutually close under the action of the torsion springs (32), and a spreading mechanism is arranged between the tripping trigger rods (30).
5. The circuit breaker according to claim 4, wherein the opening mechanism comprises a fixing frame (34), a bidirectional cam (37) is arranged in the fixing frame (34), a moving block (35) is arranged in the fixing frame (34), a jack post (33) is arranged on the moving block (35), the jack post (33) penetrates out of the fixing frame (34), the jack post (33) is positioned in the fixing frame (34) and the moving block (35) is partially sleeved with a third spring (36), and the bidirectional cam (37) is connected with the driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111677193.0A CN114334570B (en) | 2021-12-31 | 2021-12-31 | Energy storage closing structure of circuit breaker and circuit breaker thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111677193.0A CN114334570B (en) | 2021-12-31 | 2021-12-31 | Energy storage closing structure of circuit breaker and circuit breaker thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114334570A CN114334570A (en) | 2022-04-12 |
| CN114334570B true CN114334570B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111677193.0A Active CN114334570B (en) | 2021-12-31 | 2021-12-31 | Energy storage closing structure of circuit breaker and circuit breaker thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB269496A (en) * | 1926-04-19 | 1927-08-18 | Acec | Retarded overload relay or tripping device for electric circuit breakers and the like |
| GB1455526A (en) * | 1973-08-27 | 1976-11-10 | Westinghouse Electric Corp | Circuit breaker with spring closing means and pawl and ratchet spring charging means |
| CN103811232A (en) * | 2014-02-18 | 2014-05-21 | 华威博奥电力设备有限公司 | Miniature circuit breaker provided with electric control logical circuit |
| CN105742127A (en) * | 2016-03-31 | 2016-07-06 | 苏州华春电气有限公司 | Switch-off and switch-on apparatus for circuit breaker |
| CN109148231A (en) * | 2018-09-06 | 2019-01-04 | 黄诗雨 | A kind of breaker with automatic citrcuit bearker rated value |
| CN213519667U (en) * | 2020-12-11 | 2021-06-22 | 常熟开关制造有限公司(原常熟开关厂） | Electric operating mechanism for molded case circuit breaker |
-
2021
- 2021-12-31 CN CN202111677193.0A patent/CN114334570B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB269496A (en) * | 1926-04-19 | 1927-08-18 | Acec | Retarded overload relay or tripping device for electric circuit breakers and the like |
| GB1455526A (en) * | 1973-08-27 | 1976-11-10 | Westinghouse Electric Corp | Circuit breaker with spring closing means and pawl and ratchet spring charging means |
| CN103811232A (en) * | 2014-02-18 | 2014-05-21 | 华威博奥电力设备有限公司 | Miniature circuit breaker provided with electric control logical circuit |
| CN105742127A (en) * | 2016-03-31 | 2016-07-06 | 苏州华春电气有限公司 | Switch-off and switch-on apparatus for circuit breaker |
| CN109148231A (en) * | 2018-09-06 | 2019-01-04 | 黄诗雨 | A kind of breaker with automatic citrcuit bearker rated value |
| CN213519667U (en) * | 2020-12-11 | 2021-06-22 | 常熟开关制造有限公司(原常熟开关厂） | Electric operating mechanism for molded case circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114334570A (en) | 2022-04-12 |
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