CN210092012U - Multi-pole circuit breaker with modular leakage protection - Google Patents
Multi-pole circuit breaker with modular leakage protection Download PDFInfo
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- CN210092012U CN210092012U CN201920913699.9U CN201920913699U CN210092012U CN 210092012 U CN210092012 U CN 210092012U CN 201920913699 U CN201920913699 U CN 201920913699U CN 210092012 U CN210092012 U CN 210092012U
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- side cover
- earth leakage
- circuit breaker
- leakage protection
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Abstract
The utility model discloses a multi-pole circuit breaker with modular earth leakage protection, which comprises a shell, a wiring frame, an earth leakage protection mechanism and a working module, wherein the shell comprises a first side cover, a second side cover and at least one inner shell arranged between the first side cover and the second side cover; the wiring frame is independently arranged between the first side cover and the second side cover and clamped with one side or two sides of the inner shell, and the two sides of the wiring frame are fixed with the first side cover and the second side cover; the leakage protection mechanism comprises a dial switch, the dial switch extends into the protection cavity, and a leakage protection module is arranged in the protection cavity; the working modules are arranged in the working cavities, and the leakage protection module and the working modules are connected with the wiring frame. The utility model adopts an modularized assembly structure and a split wiring frame, thereby saving assembly steps and realizing rapid assembly; the dial switch is additionally arranged at the top of the leakage protector, so that the leakage function can be manually turned off, and the energy consumption is saved.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to modular earth leakage protection's multipole circuit breaker.
Background
The circuit breaker is a multi-pole circuit breaker capable of performing on-off, load bearing and on-off current under normal circuit conditions, and performing on-off, load bearing and on-off current under abnormal circuit conditions within a predetermined time. The circuit breaker can effectively improve the safety and the reliable operation of electrical equipment by using, and can be divided into a single pole, two poles, three poles, four poles and the like according to the number of poles in order to meet the installation requirements of different electrical equipment.
The traditional circuit breaker, in particular to a multi-pole circuit breaker, generally adopts an integrated design, and the structure thereof has the following disadvantages:
(1) because the internal wires need to be communicated and installed, the assembly is extremely inconvenient, and compared with the traditional product, the internal wires need to be welded and assembled after being half assembled, so that the waste of manpower and material resources is caused;
(2) the traditional structure adopts a circuit breaker and electric leakage module split structure, and the material cost is high. The traditional part conjoined structure is relatively complex to assemble, cannot complete the assembly once, is complete in a subsection way, and is very complex in process, so that the traditional structure is too complicated, and is not ideal enough for leakage protection.
In view of this, it is urgently needed to improve the structure of the existing circuit breaker so as to facilitate the processing and the assembly and improve the leakage protection effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that there are difficult processing and assembly, the poor problem of earth leakage protection effect in current circuit breaker structure.
In order to solve the technical problem, the utility model provides an adopted technical scheme is to provide a modular earth leakage protection's multipole circuit breaker, include:
the shell comprises a first side cover, a second side cover and at least one inner shell arranged between the first side cover and the second side cover, wherein a protection cavity and at least one working cavity are formed among the first side cover, the inner shell and the second side cover, a plurality of handles are arranged on the outer side of the inner shell, and the interiors of the handles are arranged in the protection cavity and the working cavity;
the wiring frame is independently arranged between the first side cover and the second side cover and clamped with one side or two sides of the inner shell, and the two sides of the wiring frame are fixed with the first side cover and the second side cover;
the leakage protection mechanism comprises a dial switch, the dial switch extends into the protection cavity, and a leakage protection module is arranged in the protection cavity;
and the working modules are arranged in the working cavities, and the leakage protection modules and the working modules are connected with the wiring frame.
In another preferred implementation, the earth leakage protection mechanism and the operating module each include:
the contact device is arranged on the circuit and comprises a fixed contact and a movable contact,
one end of the connecting rod device is connected with the handle;
one end of the tripping device is connected with the connecting rod device, the other end of the tripping device is connected with the metal sheet and the leakage tripping mechanism, and the handle realizes linkage action with the tripping device through the connecting rod device;
the arc extinguishing chamber comprises an arc striking sheet connected with the metal sheet and an arc extinguishing cover arranged on the outer side of the arc striking sheet.
In another preferred embodiment, the handle is provided with a rotating portion inside, the rotating portion is provided with a U-shaped bolt, and the link device includes:
the two ends of the U-shaped bolt are respectively inserted into the rotating part and the jump buckle, a linked indicating piece is arranged at the top of the jump buckle, and the moving contact is formed at the bottom of the jump buckle;
the lock catch is rotatably arranged at the upper end of the jump buckle, and the lower end of the lock catch is connected with the upper end of the metal sheet through a tripping device;
the U-shaped bolt is provided with a positioning shaft below, one end of the tension spring is fixed with the positioning shaft, and the other end of the tension spring is connected with the moving contact.
In another preferred implementation, the trip device includes a trip pull rod, a slot is disposed on the metal sheet, one end of the trip pull rod is inserted into the latch, and the other end of the trip pull rod is disposed in the slot.
In another preferred implementation, two ends of the metal sheet are respectively connected with an upper lead and a lower lead, the upper lead is connected with the movable contact, and the lower lead is connected with the wiring frame.
In another preferred implementation, the contact device further comprises a coil, the coil is arranged on one side of the arc extinguish chamber, one end of the coil is connected with the wiring frame in a corresponding position, the other end of the coil is connected with the static contact, a movable iron core is arranged at the center of the coil, and a coil support is further arranged on the periphery of the coil.
In another preferred implementation, the earth leakage protection module and the working module are both provided with circuit boards, and the lower lead is connected with the circuit boards through a mutual inductor.
In another preferred implementation, the bottoms of the plurality of cavities are provided with hollow serial grooves, and a lead passes through the serial grooves to communicate the earth leakage protection module with the working module.
In another preferred embodiment, the first side cover and the second side cover are shaped in a "convex" shape.
In another preferred embodiment, a screw is passed through the first side cover, the inner case, and the second side cover and fixed.
Compared with the prior art, the utility model discloses, adopt modular assembly structure, whole casing includes first side cap, second side cap and at least one inner shell in middle part to adopt the wire frame of split formula, can arrange welded earth leakage protection module and work module in the inner shell earlier, add wire frame and first side cap, second side cap again, need assemble half and weld again and assemble compared with traditional product, the utility model discloses the assembly is once accomplished after the weldable is good, saves the assembly step, can realize quick assembly; and a dial switch is additionally arranged at the top of the leakage protector, so that the leakage function can be manually turned off, in an environment with high air humidity, the residual leakage current switch can trigger the leakage protection module to act, the dial switch is turned off, so that the leakage can be turned off, and the energy consumption is saved.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic bottom structure diagram of the present invention;
fig. 3 is a schematic structural view of the first side cover and the second side cover after being disassembled;
fig. 4 is a schematic view of the split structure of the inner casing, the earth leakage protection module and the working module of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 3, shown disassembled from a rear view;
fig. 6 is a schematic diagram showing a disassembled structure of the inner casing, the earth leakage protection module and the operating module in fig. 5;
fig. 7 is a schematic structural diagram of the working module of the present invention;
fig. 8 is a schematic structural diagram of the earth leakage protection module of the present invention.
Detailed Description
The utility model provides a modular earth leakage protection's multipolar circuit breaker adopts modular package assembly, and whole casing includes first side cap, second side cap and at least one inner shell in middle part to adopt the wire frame of split formula, can arrange earth leakage protection module and work module earlier and with the inner shell welding after finishing, add dress wireframe and first side cap, second side cap again, relative traditional product need assemble half and weld again and assemble, the utility model discloses once accomplish the assembly after welding, save the assembly step, can realize quick assembly; and a dial switch is additionally arranged at the top of the leakage protector, so that the leakage function can be manually turned off, in an environment with high air humidity, the residual leakage current switch can trigger the leakage protection module to act, the dial switch is turned off, so that the leakage can be turned off, and the energy consumption is saved. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, the utility model provides a pair of modular earth leakage protection's multipole circuit breaker, including casing, connection frame 40, earth leakage protection mechanism and work module.
As shown in fig. 3 to 6, the housing includes a first side cover 10, a second side cover 20, and at least one inner casing 30 disposed between the first side cover 10 and the second side cover 20, a protection cavity and at least one working cavity are formed between the first side cover 10, the inner casing 30, and the second side cover 20, a plurality of handles 60 are disposed on the outer side of the inner casing 30, and the interiors of the handles 60 are disposed in the protection cavity and the working cavity.
The wire frame 40 is independently disposed between the first side cover 10 and the second side cover 20, and is clamped to one side or both sides of the inner case 30, and both sides are fixed to the first side cover 10 and the second side cover 20.
As shown in fig. 1, the leakage protection mechanism includes a dial switch 50, the dial switch 50 extends into the protection cavity, and the leakage protection module is disposed in the protection cavity. The working modules are arranged in the working cavities, and the leakage protection module and the working modules are connected with the wiring frame 40. The dial switch 50 can be manually operated by an operator to automatically switch off or switch on the leakage protection mechanism according to the environmental conditions.
The utility model discloses when the assembly, can arrange installation and welding with inner shell 30, earth leakage protection mechanism, work module, then carry out the first side cap 10 in connection frame 40 and the outside and the assembly of second side cap 20 fixed, improved assembly efficiency greatly.
Specifically, as shown in fig. 7 to 8, the earth leakage protection mechanism and the working module each include a contact device, a link device, a trip device 80, and an arc extinguishing chamber. The contact arrangement is arranged on an electric circuit and comprises a stationary contact 91 and a movable contact 92. One end of the linkage is connected to a handle 60. One end of the tripping device 80 is connected with the link device, the other end is connected with the metal sheet 100 and the leakage tripping mechanism, and the handle 60 realizes the linkage action with the tripping device 80 through the link device. The arc chute includes a tab 110 connected to the metal sheet 100 and an arc chute 111 disposed outside the tab 110.
The handle 60 is provided with a rotating part inside, the rotating part is provided with a U-shaped bolt 61, and the connecting rod device comprises a jump buckle 71, a lock catch 72 and a tension spring 73. Two ends of the U-shaped bolt 61 are respectively inserted into the rotating part and the jump button 71, the top of the jump button 71 is provided with a linkage indicator 711, and the bottom of the jump button 71 forms a movable contact. The lock catch 72 is rotatably disposed at the upper end of the jump buckle 71, and the lower end of the lock catch 72 is connected to the upper end of the metal sheet 100 through the trip device 80. A positioning shaft 62 is arranged below the U-shaped bolt 61, one end of a tension spring 73 is fixed with the positioning shaft 62, and the other end is connected with the movable contact. In the short circuit, the large current makes the trip 71 overcome the pulling force of the tension spring 73, and the pull handle 60 is rapidly tripped through the link mechanism, and when the overload occurs, the current becomes large to cause the metal sheet 100 to be deformed, so that the trip mechanism 80 is pushed to act, and the pull handle 60 is tripped.
The trip device 80 includes a trip rod, and the metal sheet 100 is provided with a slot, one end of the trip rod is inserted into the latch 72, and the other end is disposed in the slot. The trip pull rod has a simple structure, and after the metal sheet 100 is deformed, the trip device 80 can be directly pulled by the trip pull rod to complete power failure.
The two ends of the metal sheet 100 are respectively connected with an upper lead 101 and a lower lead 102, the upper lead 101 is connected with the jump buckle 71, and the lower lead 102 is connected with the wiring frame 40. The lower conductor 102, the metal sheet 100 and the upper conductor 101 are connected in sequence, and the metal sheet 100 is electrically connected with the moving contact, so that the moving contact 92 at the bottom end of the jump buckle 71 is connected with the fixed contact 91 to form a passage.
The earth leakage protection module and the working module are both provided with a circuit board 140, and the lower lead 102 is connected with the circuit board 140 through a transformer 130. The transformer 130 is used to scale the voltage or current to provide a basis for achieving the leakage protection function.
The contact device further comprises a coil 120, the coil 120 is arranged on one side of the arc extinguish chamber, one end of the coil 120 is connected with the wiring frame 40 at the corresponding position, the other end of the coil 120 is connected with the stationary contact 91, a movable iron core 121 is arranged in the center of the coil 120, and a coil support 122 is further arranged on the periphery of the coil 120. The coil 120 connects the outer line to the stationary contact 91 and ensures a path is formed when connecting to the movable contact 92.
As shown in fig. 1 and 2, hollow series grooves 11 are formed in the bottoms of the plurality of cavities, and a wire penetrates through the series grooves 11 to communicate the earth leakage protection module with the working module, so that the first cavity and the second cavity are connected in series through the wire, and earth leakage protection between the cavities is facilitated.
The shape of first side cover 10 and second side cover 20 is "protruding" word form, and inner shell 30 matches for first side cover 10 and second side cover 20, also can set up to the bulge shape in the middle of the top, and wire frame 40 sets up in the both sides of inner shell 30, forms "protruding" word form jointly, and handle 60 and dial switch 50 set up at the top bulge position, make things convenient for the manual operation.
The screw passes first side cap 10, inner shell 30 and second side cap 20 and fixes, and the first side cap 10 of inner shell 30, wiring frame 40 and both sides, second side cap 20 independent setting can once only adopt the fix with screw after the assembly is accomplished, makes things convenient for assembly and dismouting, is convenient for the maintenance.
The utility model discloses an adopt the modular assembly structure, whole casing includes at least one inner shell of first side cap, second side cap and middle part to adopt the wire connection frame of split formula, can arrange welded earth leakage protection module and work module in the inner shell earlier, connect wire connection frame and first side cap, second side cap again, need assemble half rewelding reassembling relative to traditional product, the utility model discloses once accomplish the assembly after the welding is good, save the assembly step, can realize quick assembly; and a dial switch is additionally arranged at the top of the leakage protector, so that the leakage function can be manually turned off, in an environment with high air humidity, the residual leakage current switch can trigger the leakage protection module to act, the dial switch is turned off, so that the leakage can be turned off, and the energy consumption is saved.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (10)
1. A modular earth leakage protected multipole circuit breaker, comprising:
the shell comprises a first side cover, a second side cover and at least one inner shell arranged between the first side cover and the second side cover, wherein a protection cavity and at least one working cavity are formed among the first side cover, the inner shell and the second side cover, a plurality of handles are arranged on the outer side of the inner shell, and the interiors of the handles are arranged in the protection cavity and the working cavity;
the wiring frame is independently arranged between the first side cover and the second side cover and clamped with one side or two sides of the inner shell, and the two sides of the wiring frame are fixed with the first side cover and the second side cover;
the leakage protection mechanism comprises a dial switch, the dial switch extends into the protection cavity, and a leakage protection module is arranged in the protection cavity;
and the working modules are arranged in the working cavities, and the leakage protection modules and the working modules are connected with the wiring frame.
2. The modular earth leakage protection multipole circuit breaker according to claim 1, wherein said earth leakage protection mechanism and said operating module each comprise:
the contact device is arranged on the circuit and comprises a fixed contact and a movable contact,
one end of the connecting rod device is connected with the handle;
one end of the tripping device is connected with the connecting rod device, the other end of the tripping device is connected with the metal sheet and the leakage tripping mechanism, and the handle realizes linkage action with the tripping device through the connecting rod device;
the arc extinguishing chamber comprises an arc striking sheet connected with the metal sheet and an arc extinguishing cover arranged on the outer side of the arc striking sheet.
3. The modular earth leakage protected multipole circuit breaker according to claim 2, wherein said handle has a rotary portion inside, said rotary portion having a U-shaped bolt, said linkage means comprising:
the two ends of the U-shaped bolt are respectively inserted into the rotating part and the jump buckle, a linkage indicating piece is arranged at the top of the jump buckle, and the movable contact is formed at the bottom of the jump buckle;
the lock catch is rotatably arranged at the upper end of the jump buckle, and the lower end of the lock catch is connected with the upper end of the metal sheet through a tripping device;
the extension spring, the below of U type is tied is equipped with the location axle, the one end of extension spring with the location axle is fixed, the other end with the movable contact is connected.
4. The modular earth leakage protected multipole circuit breaker according to claim 3, wherein said tripping means comprise a tripping rod, said metal plate being provided with a slot, one end of said tripping rod being inserted into said catch and the other end of said tripping rod being positioned in said slot.
5. A modular earth leakage protected multipole circuit breaker according to claim 3, wherein said metallic blade has an upper and a lower conductor connected to each end thereof, said upper conductor being connected to said movable contact and said lower conductor being connected to said connection frame.
6. The modular earth leakage protected multi-pole circuit breaker according to claim 2, wherein said contact device further comprises a coil, said coil is disposed at one side of said arc extinguishing chamber, one end of said coil is connected to said wiring frame at a corresponding position, the other end of said coil is connected to said stationary contact, said coil is provided with a movable iron core at the center, and a coil support is disposed at the periphery of said coil.
7. A modular earth leakage protected multipole circuit breaker according to claim 5, characterized in that the earth leakage protection module and the operating module are each provided with a circuit board, the lower conductor being connected to the circuit board by means of a mutual inductor.
8. A modular earth leakage protection multipole circuit breaker according to claim 1, wherein the bottom of a plurality of said working chambers is provided with hollow series slots through which wires pass to communicate said earth leakage protection module with said working module.
9. The modular earth leakage protected multipole circuit breaker according to claim 1, wherein said first side cover and said second side cover are shaped as "male".
10. The modular earth leakage protected multipole circuit breaker according to claim 1, wherein screws are passed through said first side cover, said inner housing and said second side cover and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920913699.9U CN210092012U (en) | 2019-06-18 | 2019-06-18 | Multi-pole circuit breaker with modular leakage protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920913699.9U CN210092012U (en) | 2019-06-18 | 2019-06-18 | Multi-pole circuit breaker with modular leakage protection |
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| Publication Number | Publication Date |
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| CN210092012U true CN210092012U (en) | 2020-02-18 |
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| CN201920913699.9U Active CN210092012U (en) | 2019-06-18 | 2019-06-18 | Multi-pole circuit breaker with modular leakage protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4213175A1 (en) * | 2022-01-13 | 2023-07-19 | Siemens Aktiengesellschaft | Low voltage circuit breaker with voltage tap and pcb card and method of assembly |
-
2019
- 2019-06-18 CN CN201920913699.9U patent/CN210092012U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4213175A1 (en) * | 2022-01-13 | 2023-07-19 | Siemens Aktiengesellschaft | Low voltage circuit breaker with voltage tap and pcb card and method of assembly |
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Address after: 325600 No. 211, Weixi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Lianrui Electrical Technology Co.,Ltd. Address before: 325600 weishiqi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province (in Zhejiang Yage Electric Co., Ltd.) Patentee before: Xinrui Electric Technology Co.,Ltd. |