CN214588670U - Modular automatic reclosing miniature circuit breaker - Google Patents
Modular automatic reclosing miniature circuit breaker Download PDFInfo
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- CN214588670U CN214588670U CN202120877154.4U CN202120877154U CN214588670U CN 214588670 U CN214588670 U CN 214588670U CN 202120877154 U CN202120877154 U CN 202120877154U CN 214588670 U CN214588670 U CN 214588670U
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Abstract
The utility model relates to a modularized automatic reclosing small-sized circuit breaker, which comprises a circuit breaker unit and an automatic reclosing device, wherein the circuit breaker unit comprises an N-line switch module, a plurality of L-line switch modules and an electric leakage protection metering module, the electric leakage protection metering module comprises a shell and an electric leakage protection metering assembly, the electric leakage protection metering assembly comprises an electric leakage protection circuit board, a plurality of conductive tubes, a zero sequence transformer which is electrically connected with the electric leakage protection circuit board and sleeved on the plurality of conductive tubes, a plurality of conductive plates, a plurality of straight-through tubes, a plurality of current transformers, a plurality of conductive sheets connected with the straight-through tubes and a plurality of wiring terminals connected with the plurality of conductive sheets, one ends of the plurality of conductive tubes are respectively connected to the N-line switch module and the plurality of L-line switch modules, and the plurality of conductive tubes are electrically connected with the N-line switch module and the plurality of L-line switch modules. The utility model has the advantages of simple structure, stable and reliable performance, small volume, convenient assembly and low cost.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to automatic reclosing lock miniature circuit breaker.
Background
At present, small circuit breakers are widely used in low-voltage distribution networks, mainly in various places such as industrial, commercial, high-rise and residential houses, and can perform overcurrent protection and leakage protection on electric devices such as motors, distribution lines and lighting circuits. The traditional small circuit breaker needs manual operation to complete the opening and closing actions. With the development of intelligent power grids in China, on the premise of requiring safe operation of the power grids, the realization of intellectualization of control of electric appliances is more and more urgent. In order to cope with new situation changes, the existing miniature circuit breaker should be provided with an automatic reclosing function. The electric operating mechanism of the miniature circuit breaker is an accessory used for a remote electric opening and closing circuit breaker, is directly matched with a prepayment electric energy meter for use, and can realize reclosing after payment. The existing miniature circuit breaker capable of automatically reclosing is unreasonable in structural design, complex in assembly, low in production efficiency and high in cost, and cannot be assembled in a modularized mode, so that the miniature circuit breaker capable of automatically reclosing has the defects of complex structure, large size, unreliable performance, inconvenience in assembly and high cost.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance are reliable, small, the assembly is convenient, with low costs modularization automatic reclosing miniature circuit breaker.
In order to achieve the above object, the utility model discloses a modularized automatic reclosing miniature circuit breaker, including circuit breaker unit, the automatic reclosing device who assembles mutually with circuit breaker unit, circuit breaker unit including setting up N line switch module, a plurality of stack on automatic reclosing device one side L line switch module, the earth leakage protection metering module who sets up on N line switch module one side and a plurality of L line switch module one side, earth leakage protection metering module include the casing, set up the earth leakage protection metering assembly in the casing, earth leakage protection metering assembly include earth leakage protection circuit board, a plurality of conductive tubes, be connected with earth leakage protection circuit board electricity and the zero sequence mutual-inductor of suit on a plurality of conductive tubes, a plurality of conductive plates of being connected with a plurality of conductive tube phase lines respectively, a plurality of through tubes that are linked together with a plurality of conductive plates respectively, earth leakage protection metering assembly includes earth leakage protection circuit board, a plurality of conductive tubes, be connected with a plurality of conductive tube phase lines respectively, The leakage protection circuit board comprises a plurality of current transformers, a plurality of conducting strips and a plurality of wiring terminals, wherein the current transformers are sleeved on a plurality of straight-through tubes respectively and are electrically connected with the leakage protection circuit board, the conducting strips are connected with the straight-through tubes, the wiring terminals are connected with the conducting strips, one ends of the conducting tubes are connected to an N-line switch module and a plurality of L-line switch modules respectively, and the conducting tubes are electrically connected with the N-line switch module and the L-line switch modules.
The beneficial effect of above-mentioned structure is: this automatic reclosing miniature circuit breaker adopts modular structure design, and the circuit breaker unit comprises N line switch module, L line switch module, earth leakage protection module, can be according to user's demand, and the assembly of flexible combination of going certainly, and earth leakage protection module clamps on N line switch module, L line switch module, and the assembly is more convenient, is favorable to improving production efficiency, and can realize this automatic reclosing miniature circuit breaker's earth leakage protection, the function of measurement. And the internal structure of the leakage protection module is simple in design and reasonable in layout. Therefore, the automatic reclosing miniature circuit breaker has the advantages of simple structure, stable and reliable performance, small volume, convenience and quickness in assembly and low cost.
Particularly, the plurality of conductive tubes are in a rectangular array and penetrate through the zero sequence transformer respectively, a first screw is arranged in each conductive tube, each first screw sequentially penetrates through one end of each conductive plate, the conductive tubes and is connected to the contact plates of the N-line switch module and the L-line switch modules respectively, a second screw is arranged in each through tube, and each second screw sequentially penetrates through the conductive plates and the through tubes and is connected to the other end of each conductive plate. The conducting tube, the conducting plate, the straight-through tube and the conducting plate are connected to the N-line switch module and the L-line switch module through the first screw and the second screw in a penetrating mode, so that the leakage protection metering module, the N-line switch module and the L-line switch module are convenient to assemble, and the assembly is more convenient.
Particularly, the zero sequence transformer on correspond a plurality of current conducting plates punishment and be provided with a draw-in groove respectively, a plurality of current conducting plates block respectively in the draw-in groove, and constitute a plurality of current conducting plates and zero sequence transformer's joint cooperation, and be provided with the apron of shroud on a plurality of current conducting plates on the zero sequence transformer. The current conducting plate block is in zero sequence transformer's draw-in groove, the assembly of current conducting plate and zero sequence transformer of being convenient for, and the apron can avoid the current conducting plate to expose, is favorable to improving this automatic reclosing miniature circuit breaker's security performance.
Particularly, zero sequence transformer on be provided with the joint sand grip, the apron in be provided with joint sand grip matched with joint groove, joint sand grip block at the joint inslot, and constitute apron and zero sequence transformer's joint cooperation. The zero sequence transformer and the cover plate are assembled in a clamping matching mode, and the assembly is more convenient.
Particularly, a plurality of partition plates are respectively arranged on one side of the cover plate corresponding to the plurality of current transformers, and the partition plates respectively partition between every two adjacent current transformers.
Particularly, a power taking piece is arranged between each of the wiring terminals and the leakage protection circuit board, one end of each power taking piece is provided with a pin inserted on the leakage protection circuit board, the other end of each power taking piece is inserted in each wiring terminal, and the other end of each power taking piece is provided with a contact elastic piece abutted against the corresponding conductive piece. The power taking piece can collect the voltage signal of the wiring terminal on the electric leakage protection circuit board, so that the voltage implementation monitoring function of the automatic reclosing miniature circuit breaker is realized, the power taking piece is connected with the electric leakage protection circuit board in a plugging mode, the assembly is more convenient, the power taking piece is provided with the contact elastic piece which is in contact with the conductive piece, and the electric connection of the wiring terminal, the power taking piece and the conductive piece can be ensured to be more reliable.
Particularly, the casing of earth leakage protection metering module on be provided with the card hole, the shell of L line switch module on be provided with the checkpost, the checkpost block in the card hole, and constitute earth leakage protection metering module and L line switch module's joint cooperation. The electric leakage protection metering module is connected with the L-line switch module in a clamping matching mode, so that the electric leakage protection metering module is convenient to assemble with the L-line switch module, and the assembly efficiency is higher.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Fig. 3 is an internal structure diagram of the embodiment of the present invention.
Fig. 4 is an assembly view of the conducting strip, the straight-through pipe and the current transformer of the embodiment of the present invention.
Fig. 5 is an assembly diagram of the current-conducting plate, the current-conducting tube and the zero sequence transformer according to the embodiment of the present invention.
Fig. 6 is a perspective view of a cover plate according to an embodiment of the present invention.
Fig. 7 is a perspective view of the electricity-taking sheet according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1-6, an embodiment of the present invention is a modular automatic reclosing miniature circuit breaker, including circuit breaker unit 10, the automatic reclosing device 20 assembled with circuit breaker unit 10, circuit breaker unit 10 including N line switch module 11, a plurality of stack settings on N line switch module 11 one side of N line switch module 11, set up leakage protection metering module 30 on N line switch module 11 and a plurality of L line switch module 12 one side, leakage protection metering module 30 include casing 31, leakage protection metering assembly 32 set up in casing 31, leakage protection metering assembly 32 include leakage protection circuit board 321, a plurality of conductive tubes 322, zero sequence transformer 323 electrically connected with leakage protection circuit board 321 and sleeved on a plurality of conductive tubes 322, a plurality of conductive plates 324 connected with a plurality of conductive tubes 322 respectively, The leakage protection circuit board comprises a plurality of straight-through tubes 325 respectively communicated with a plurality of conductive plates 324, a plurality of current transformers 326 respectively sleeved on the straight-through tubes 325 and electrically connected with the leakage protection circuit board 321, a plurality of conductive sheets 327 connected with the straight-through tubes 325, and a plurality of wiring terminals 328 connected with the conductive sheets 327, wherein one ends of the conductive tubes 322 are respectively connected to the N-line switch module 11 and the L-line switch modules 12, and the conductive tubes 322 are electrically connected with the N-line switch module 11 and the L-line switch modules 12. As shown in fig. 2 and 3, the plurality of conductive pipes 322 respectively penetrate through the zero sequence transformer 323 in a rectangular array, a first screw 329 is respectively arranged in each conductive pipe 322, each first screw 329 sequentially penetrates through one end of the conductive plate 324, the conductive pipe 322 and is respectively connected to the N-line switch module 11 and the contact plate 13 of the plurality of L-line switch modules 12, a second screw 330 is respectively arranged in each through pipe 325, and each second screw 330 sequentially penetrates through the conductive plate 327 and the through pipe 325 and is connected to the other end of the conductive plate 324. The conducting tube, the conducting plate, the straight-through tube and the conducting plate are connected to the N-line switch module and the L-line switch module through the first screw and the second screw in a penetrating mode, so that the leakage protection metering module, the N-line switch module and the L-line switch module are convenient to assemble, and the assembly is more convenient.
As shown in fig. 2, 4, 5, and 6, a plurality of slots 3231 are respectively disposed on the zero sequence transformer 323 corresponding to the plurality of conductive plates 324, the plurality of conductive plates 324 are respectively engaged with the slots 3231, and the plurality of conductive plates 324 are engaged with the zero sequence transformer 323, and a cover 331 covering the plurality of conductive plates 324 is disposed on the zero sequence transformer 323. The current conducting plate block is in zero sequence transformer's draw-in groove, the assembly of current conducting plate and zero sequence transformer of being convenient for, and the apron can avoid the current conducting plate to expose, is favorable to improving this automatic reclosing miniature circuit breaker's security performance. Zero sequence transformer 323 on be provided with joint sand grip 3232, apron 331 in be provided with joint sand grip 3232 matched with joint groove 3311, joint sand grip 3232 block in joint groove 3311, and constitute apron 331 and zero sequence transformer 323's joint cooperation. The zero sequence transformer and the cover plate are assembled in a clamping matching mode, and the assembly is more convenient. A plurality of partition plates 3312 are respectively arranged on one side of the cover plate 331 corresponding to the plurality of current transformers 326, and the plurality of partition plates 3312 are respectively arranged between every two adjacent current transformers 326.
As shown in fig. 3 and 7, a power taking piece 332 is respectively disposed between the plurality of connection terminals 328 and the earth leakage protection circuit board 321, one end of the power taking piece 332 is provided with a pin 3321 inserted in the earth leakage protection circuit board 321, the other end of the power taking piece 332 is inserted in the connection terminal 328, and the other end of the power taking piece 332 is provided with a contact spring piece 3322 abutted against the conductive piece 327. The power taking piece can collect the voltage signal of the wiring terminal on the electric leakage protection circuit board, so that the voltage implementation monitoring function of the automatic reclosing miniature circuit breaker is realized, the power taking piece is connected with the electric leakage protection circuit board in a plugging mode, the assembly is more convenient, the power taking piece is provided with the contact elastic piece which is in contact with the conductive piece, and the electric connection of the wiring terminal, the power taking piece and the conductive piece can be ensured to be more reliable. As shown in fig. 2 and 3, the housing 31 of the earth leakage protection metering module 30 is provided with a clamping hole 311, the housing 121 of the L-line switch module 12 is provided with a clip 122, and the clip 122 is clamped in the clamping hole 311, so as to form a clamping fit between the earth leakage protection metering module 30 and the L-line switch module 12. The electric leakage protection metering module is connected with the L-line switch module in a clamping matching mode, so that the electric leakage protection metering module is convenient to assemble with the L-line switch module, and the assembly efficiency is higher.
This automatic reclosing miniature circuit breaker adopts modular structure design, and the circuit breaker unit comprises N line switch module, L line switch module, earth leakage protection module, can be according to user's demand, and the assembly of flexible combination of going certainly, and earth leakage protection module clamps on N line switch module, L line switch module, and the assembly is more convenient, is favorable to improving production efficiency, and can realize this automatic reclosing miniature circuit breaker's earth leakage protection, the function of measurement. And the internal structure of the leakage protection module is simple in design and reasonable in layout. Therefore, the automatic reclosing miniature circuit breaker has the advantages of simple structure, stable and reliable performance, small volume, convenience and quickness in assembly and low cost.
Claims (7)
1. The utility model provides a modularization reclose miniature circuit breaker, includes circuit breaker unit, the recloser who assembles mutually with circuit breaker unit, its characterized in that: the circuit breaker unit comprises an N-line switch module arranged on one side of the automatic reclosing device, a plurality of L-line switch modules arranged on one side of the N-line switch module in an overlapping mode, and electric leakage protection metering modules arranged on one sides of the N-line switch module and the plurality of L-line switch modules, wherein each electric leakage protection metering module comprises a shell and an electric leakage protection metering assembly arranged in the shell, each electric leakage protection metering assembly comprises an electric leakage protection circuit board, a plurality of conductive tubes, a zero-sequence mutual inductor electrically connected with the electric leakage protection circuit board and sleeved on the plurality of conductive tubes, a plurality of conductive plates respectively connected with the plurality of conductive tubes, a plurality of through tubes respectively communicated with the plurality of conductive plates, a plurality of current mutual inductors respectively sleeved on the plurality of through tubes and electrically connected with the electric leakage protection circuit board, a plurality of conductive pieces connected with the plurality of through tubes, a plurality of current mutual inductors, a plurality of conductive pieces, And one ends of the conductive tubes are respectively connected to the N-line switch module and the L-line switch modules, and the conductive tubes are electrically connected with the N-line switch module and the L-line switch modules.
2. The modular recloser miniature circuit breaker according to claim 1, characterized in that: the plurality of the current-conducting tubes are rectangular arrays and penetrate through the zero sequence transformer respectively, first second screws are arranged in the plurality of the current-conducting tubes respectively, each first second screw penetrates through one end of each current-conducting plate, each current-conducting tube and is connected to the contact plates of the N-line switch module and the plurality of the L-line switch modules respectively, a second screw is arranged in each through tube, and each second screw penetrates through each current-conducting plate and each through tube and is connected to the other end of each current-conducting plate.
3. The modular recloser miniature circuit breaker according to claim 1 or 2, characterized in that: zero sequence transformer on correspond a plurality of current conducting plate punishment and do not be provided with a draw-in groove, a plurality of current conducting plate block respectively is in the draw-in groove, and constitutes a plurality of current conducting plate and zero sequence transformer's joint cooperation, and the zero sequence transformer is last to be provided with the apron of shroud on a plurality of current conducting plates.
4. The modular recloser miniature circuit breaker according to claim 3, characterized in that: zero sequence transformer on be provided with the joint sand grip, the apron in be provided with joint sand grip matched with joint groove, joint sand grip block at the joint inslot, and constitute apron and zero sequence transformer's joint cooperation.
5. The modular recloser miniature circuit breaker according to claim 3, characterized in that: a plurality of partition plates are respectively arranged on one side of the cover plate corresponding to the current transformers, and the partition plates respectively separate the current transformers between every two adjacent current transformers.
6. The modular recloser miniature circuit breaker according to claim 1 or 2, characterized in that: the leakage protection circuit board is characterized in that a plurality of wiring terminals and the leakage protection circuit board are respectively provided with a power taking piece, one end of each power taking piece is provided with a pin inserted on the leakage protection circuit board, the other end of each power taking piece is inserted into each wiring terminal, and the other end of each power taking piece is provided with a contact elastic piece abutted against the corresponding conductive piece.
7. The modular recloser miniature circuit breaker according to claim 1 or 2, characterized in that: the casing of earth leakage protection metering module on be provided with the card hole, the shell of L line switch module on be provided with the checkpost, the checkpost block in the card hole, and constitute earth leakage protection metering module and L line switch module's joint cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877154.4U CN214588670U (en) | 2021-04-26 | 2021-04-26 | Modular automatic reclosing miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877154.4U CN214588670U (en) | 2021-04-26 | 2021-04-26 | Modular automatic reclosing miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214588670U true CN214588670U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120877154.4U Active CN214588670U (en) | 2021-04-26 | 2021-04-26 | Modular automatic reclosing miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214588670U (en) |
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2021
- 2021-04-26 CN CN202120877154.4U patent/CN214588670U/en active Active
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