CN220914133U - Working state indicating device of molded case circuit breaker and molded case circuit breaker - Google Patents
Working state indicating device of molded case circuit breaker and molded case circuit breaker Download PDFInfo
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- CN220914133U CN220914133U CN202322834720.5U CN202322834720U CN220914133U CN 220914133 U CN220914133 U CN 220914133U CN 202322834720 U CN202322834720 U CN 202322834720U CN 220914133 U CN220914133 U CN 220914133U
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- circuit breaker
- molded case
- indication rod
- case circuit
- rod
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- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
A kind of plastic case breaker working state indicating device and a plastic case breaker, its working state indicating device includes bracket, micro-switch, pilot lever; the micro switch is fixedly arranged on the support, the indication rod is arranged on the support in a vertical sliding mode, the indication rod corresponds to the micro switch, the micro switch can be touched by the action of the indication rod, and the upper end of the indication rod can penetrate out of the shell. By adopting the scheme, the state of opening and closing is indicated through the up-and-down sliding of the indicating rod, the indicating rod can penetrate out of the shell to carry out state indication, and only a normal fit clearance is needed between the indicating rod and the shell.
Description
Technical Field
The utility model relates to the technical field of piezoelectric devices, in particular to a working state indicating device of a molded case circuit breaker and the molded case circuit breaker.
Background
A circuit breaker is a switching device capable of closing, carrying and breaking a current under normal circuit conditions and capable of closing, carrying and breaking a current under abnormal circuit conditions for a prescribed time. The plastic case circuit breaker can automatically cut off the current after the current exceeds the trip setting, and the plastic case refers to a plastic insulator used as a casing of the device for isolating the conductors and the grounded metal part. Molded case circuit breakers typically contain a thermo-magnetic trip unit, while large sized molded case circuit breakers are equipped with solid state trip sensors. The tripping unit is divided into a thermomagnetic tripping device and an electronic tripping device. The molded case circuit breaker is also called a device type circuit breaker, all parts are sealed in a plastic shell, and an auxiliary contact, an undervoltage release, a shunt release and the like are modularized. Because the structure is very compact, the plastic shell breaker can not be overhauled basically, and the multi-sampling plastic shell breaker can be manually operated, and the high-capacity electric switching can be selected.
In the existing molded case circuit breaker, a working state indicating device is usually arranged, an indicating rod is arranged on one hand, the opening and closing state of a product is indicated from the front of the circuit breaker, a micro switch is arranged on the other hand, the contact state of the micro switch can be fed back to a controller and a user control system, and the working state of the product is conveniently and remotely commanded and displayed.
The traditional working state indicating device mostly adopts a rotary structure, namely, the on-off state indication is realized through the rotary swing of the indicating rod, so that an observation window is required to be formed on the shell of the molded case circuit breaker and used for observing the indicating rod, but a certain gap exists between the indicating rod and the observation window of the shell for the normal swing of the indicating rod, the gap is relatively large, the sealing performance is poor, the vent is equivalent to being formed, the arc is easy to spray when the circuit breaker is opened and closed, the shell of the circuit breaker is easy to damage due to the existence of the gap, and the service life is low.
Disclosure of utility model
In order to overcome the defects of the background technology, the utility model provides a working state indicating device of a molded case circuit breaker and the molded case circuit breaker.
The utility model adopts the technical scheme that: the working state indicating device of the molded case circuit breaker comprises a bracket, a micro switch and an indicating rod; the micro switch is fixedly arranged on the support, the indication rod is arranged on the support in a vertical sliding mode, the indication rod corresponds to the micro switch, and the micro switch can be touched by the action of the indication rod.
The bracket comprises a bottom plate, wherein the bottom plate is provided with a mounting side plate, and a sliding opening is formed in the position, close to the middle part, of the bottom plate;
the micro switch is fixedly arranged on the mounting side plate;
The indication rod passes through the sliding opening and can slide up and down along the sliding opening, the indication rod is provided with a micro-touch foot extending to the side, and the micro-touch foot is correspondingly arranged below the micro-switch.
An elastic piece is further arranged between the indication rod and the support, and the elastic piece can provide a downward elastic force for the indication rod.
The bottom plate corresponds the both sides of sliding mouth and is equipped with first spring hitching leg, be formed with two second spring hitching legs corresponding with two first spring hitching legs respectively on the pilot lever, the elastic component is the extension spring to be connected with first spring hitching leg, second spring hitching leg respectively.
The indicating rod is also provided with a limiting plate which can be in limiting fit with the bottom plate, and the elastic piece can drive the limiting plate to keep contact with the bracket.
The micro switch is characterized in that mounting side plates are arranged on two sides of the bottom plate, the micro switch is arranged on two sides of the bottom plate and is respectively mounted on the two mounting side plates, and micro touch feet extend out of the two sides of the indication rod.
The utility model provides a moulded case circuit breaker, includes casing and foretell operating condition indicating device, support fixed mounting is in the casing, the instruction pole corresponds with operating device or the moving contact mechanism of circuit breaker and is connected, just the upper end of instruction pole wears out the casing setting.
The movable contact mechanism comprises a rotating shaft and a contact blade arranged on the rotating shaft, and the lower end of the indicating rod corresponds to the contact blade.
The beneficial effects of the utility model are as follows: by adopting the scheme, the state of opening and closing is indicated through the up-and-down sliding of the indicating rod, the indicating rod can penetrate out of the shell to carry out state indication, and only a normal fit clearance is needed between the indicating rod and the shell.
Drawings
Fig. 1 is a schematic structural diagram of a molded case circuit breaker according to an embodiment of the present utility model.
Fig. 2 is a schematic view of the structure of the inside of a molded case circuit breaker housing according to an embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a working state indicating device and a moving contact structure according to an embodiment of the present utility model.
Fig. 4-5 are schematic structural diagrams of an operation state indicating device according to an embodiment of the present utility model.
Fig. 6 is a schematic structural view of a bracket according to an embodiment of the present utility model.
Fig. 7 is a schematic structural view of an indicator lever according to an embodiment of the present utility model.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
As shown, a molded case circuit breaker includes a case 1 and an operating state indicating device 2.
The housing 1 generally includes a base, a middle shell, and an upper cover, in which an operation mechanism, a moving contact mechanism, a static contact mechanism, an arc extinguishing mechanism, and other circuit breaking parts are generally installed in the base, and a circuit board, a reclosing transmission mechanism, and other control parts are generally installed in the shell, which are of course conventional structures, and will not be described in detail herein.
The working state indicating device 2 comprises a bracket 21, a micro switch 22, an indicating rod 23 and an elastic piece 24.
The support 21 comprises a bottom plate 211, mounting side plates 212 are arranged on two sides of the bottom plate 211, sliding openings 213 are formed in positions, close to the middle, of the bottom plate 211, and first spring hanging legs 214 are arranged at two ends, corresponding to the sliding openings 213, of the bottom plate 211. Mounting holes are further formed in two ends of the support 21, and the support 21 is fixedly mounted on the middle shell of the shell 1 through screws.
The micro switch 22 is fixedly installed on the bracket 21 and is connected with the circuit board.
The indication rod 23 passes through the sliding opening 213 and can slide up and down along the sliding opening 213, the indication rod 23 is provided with a micro-touch foot 231 extending to the side, two second spring hanging feet 232 corresponding to the two first spring hanging feet 214 are formed on the indication rod 23, and a limit plate 233 capable of being in limit fit with the bottom plate 211 is also formed on the indication rod 23. The micro-touch foot 231 extends below the micro-switch 22, and corresponds to the micro-switch 22, the lower end of the indication rod 23 extends into the base and corresponds to the contact blade 32 of the moving contact mechanism, and the upper end of the indication rod 23 penetrates out of the upper cover of the casing 1.
The elastic member 24 is a tension spring, and is respectively connected with the first spring hanger 214 and the second spring hanger 232, and the elastic member 24 can provide a downward elastic force for the indication rod 23, so that the limiting plate 233 can be driven to keep limiting contact with the bracket 21.
When the switch-on is performed, the contact blade 32 rotates downwards along with the rotating shaft 31 to be in contact with the fixed contact, so that the communication is realized, the contact blade 32 is separated from the lower end of the indicating rod 23, at the moment, the indicating rod 23 slides downwards under the drive of the elastic piece 24, the part of the upper end of the indicating rod 23, which is exposed out of the upper cover, is shortened, the indicating rod is indicated to be switched on, meanwhile, the micro-touch foot 231 is separated downwards from the micro-switch, the micro-switch is switched from the closed state to the open state, the contact state is changed, and meanwhile, the contact state can be fed back to the controller and a user control system, and the switch-on is displayed.
When the switch is opened, the contact blade 32 rotates downwards along with the rotating shaft 31 to be separated from the fixed contact, so that the contact blade 32 contacts with the lower end of the indication rod 23, the elastic force of the elastic piece 24 is overcome to drive the indication rod 23 to slide upwards, the upper end of the indication rod 23 is exposed out of the upper cover, the side length is indicated to be the switch, meanwhile, the micro-touch foot 231 contacts with the micro-switch upwards, the micro-switch is switched from an open state to a closed state, the contact state is changed, and meanwhile, the contact state can be fed back to the controller and a user control system, and the switch is displayed.
By adopting the scheme, the indicating rod penetrates out of the shell to be arranged in a split state through up-and-down sliding indication of the indicating rod, so that only a normal fit clearance is needed between the indicating rod and the shell, and compared with a rotary structure in the prior art, the gap is smaller, the sealing performance is higher, the arc blowing phenomenon is effectively avoided, the reliability is higher, and the service life is long.
In addition, the indication rod can also form linkage fit with the operating mechanism, and the indication rod is directly driven to move up and down in the process of controlling the opening and closing by the operating mechanism without arranging an elastic piece; the number of the micro switches can also be two and are respectively arranged on the mounting side plates at two sides of the bottom plate; in order to improve the display effect of the indication rod, the upper end of the indication rod can be provided with a color or a structure with more recognition degree.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The skilled person will know: while the utility model has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the utility model, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (8)
1. The working state indicating device of the molded case circuit breaker comprises a bracket (21), a micro switch (22) and an indicating rod (23); the method is characterized in that: the micro switch (22) is fixedly arranged on the support (21), the indication rod (23) is arranged on the support (21) in a vertical sliding mode, the indication rod (23) corresponds to the micro switch (22), and the micro switch (22) can be touched by the action of the indication rod (23).
2. The operation state indicating device of a molded case circuit breaker according to claim 1, wherein: the bracket (21) comprises a bottom plate (211), a mounting side plate (212) is arranged on the bottom plate (211), and a sliding opening (213) is formed in the position, close to the middle, of the bottom plate (211);
The micro switch (22) is fixedly arranged on the mounting side plate (212);
The indication rod (23) passes through the sliding opening (213) and can slide up and down along the sliding opening (213), the indication rod (23) is provided with a micro-motion touch foot (231) extending to the side, and the micro-motion touch foot (231) is correspondingly arranged below the micro-motion switch (22).
3. The operation state indicating device of a molded case circuit breaker according to claim 2, wherein: an elastic piece (24) is further arranged between the indication rod (23) and the bracket (21), and the elastic piece (24) can provide a downward elastic force for the indication rod (23).
4. The operation state indicating device of a molded case circuit breaker according to claim 3, wherein: the two sides of the bottom plate (211) corresponding to the sliding opening (213) are provided with first spring hanging legs (214), two second spring hanging legs (232) corresponding to the two first spring hanging legs (214) are formed on the indication rod (23), and the elastic piece (24) is a tension spring and is connected with the first spring hanging legs (214) and the second spring hanging legs (232) respectively.
5. The operation state indicating device of a molded case circuit breaker according to claim 3, wherein: the indicating rod (23) is also provided with a limiting plate (233) which can be in limiting fit with the bottom plate (211), and the elastic piece (24) can drive the limiting plate (233) to keep in contact with the bracket (21).
6. The operation state indicating device of a molded case circuit breaker according to claim 2, wherein: the micro switch is characterized in that mounting side plates (212) are arranged on two sides of the bottom plate (211), the micro switch (22) is arranged on two sides of the bottom plate and is respectively mounted on the two mounting side plates (212), and micro touch feet (231) extend out of the two sides of the indication rod (23).
7. A molded case circuit breaker comprising a housing (1) and an operating condition indicating device (2) according to any one of claims 1-6, characterized in that: the support (21) is fixedly arranged in the shell (1), the indication rod (23) is correspondingly connected with an operating mechanism or a moving contact mechanism of the circuit breaker, and the upper end of the indication rod (23) penetrates out of the shell (1).
8. The molded case circuit breaker according to claim 7, wherein: the movable contact mechanism comprises a rotating shaft (31) and a contact blade (32) arranged on the rotating shaft (31), and the lower end of the indication rod (23) corresponds to the contact blade (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322834720.5U CN220914133U (en) | 2023-10-23 | 2023-10-23 | Working state indicating device of molded case circuit breaker and molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322834720.5U CN220914133U (en) | 2023-10-23 | 2023-10-23 | Working state indicating device of molded case circuit breaker and molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220914133U true CN220914133U (en) | 2024-05-07 |
Family
ID=90913850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322834720.5U Active CN220914133U (en) | 2023-10-23 | 2023-10-23 | Working state indicating device of molded case circuit breaker and molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220914133U (en) |
-
2023
- 2023-10-23 CN CN202322834720.5U patent/CN220914133U/en active Active
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