CN210443513U - Plastic case leakage circuit breaker - Google Patents
Plastic case leakage circuit breaker Download PDFInfo
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- CN210443513U CN210443513U CN201922043744.2U CN201922043744U CN210443513U CN 210443513 U CN210443513 U CN 210443513U CN 201922043744 U CN201922043744 U CN 201922043744U CN 210443513 U CN210443513 U CN 210443513U
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- circuit breaker
- base
- leakage protection
- electric leakage
- power supply
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- 230000005611 electricity Effects 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to a moulded case leakage circuit breaker, including base, operating device, contact system, electrically conductive system, the base in be provided with supplementary electric leakage protection module, this supplementary electric leakage module include with circuit breaker traction lever matched with electric leakage release, with the electric leakage protection circuit board that electric leakage release electricity is connected, suit zero sequence transformer on the inlet wire copper bar, with circuit breaker pivot matched with auxiliary switch, set up the auxiliary power supply binding post on the outer wall of base, auxiliary switch be connected with auxiliary power supply binding post electricity, auxiliary power supply binding post, zero sequence transformer and electric leakage protection circuit board between be connected with the wire respectively. The utility model has the advantages of simple structure, stable and reliable performance and high safety.
Description
Technical Field
The utility model particularly relates to a moulded case leakage circuit breaker.
Background
At present, circuit breakers for power distribution are used in power distribution networks to distribute electrical energy and as overload, short circuit, leakage and undervoltage protection for lines and power equipment. In a distribution network, the performance of a circuit breaker will directly affect the safety and reliability of the electricity usage. Since most of the electric devices are conventionally operated at 380V, the conventional plastic case circuit breaker is also designed and produced based on the operating voltage. However, with the continuous expansion of industrial applications, a higher working voltage is required in some scenarios, for example, in special power utilization places such as oil fields and coal mines, and with the extension of working lines, in order to reduce line loss and ensure normal operation of equipment, the working voltage of 1140V is often adopted for the power utilization equipment. Therefore, a circuit breaker capable of meeting the requirement of 1140V working voltage is available on the market, however, the 1140V working voltage circuit breaker has no leakage protection function and unreliable safety performance, and therefore, it is necessary to design a circuit breaker which meets the 1140V working voltage and has leakage protection.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a shell leakage circuit breaker of simple structure, dependable performance, high security.
For realizing the above-mentioned purpose, the utility model discloses a moulded case leakage circuit breaker, including base, operating device, contact system, electrically conductive system, the base in be provided with supplementary earth leakage protection module, this supplementary earth leakage module include with circuit breaker traction lever matched with electric leakage release, with the electric leakage protection circuit board that electric leakage release is connected, the zero sequence transformer of suit on the inlet wire copper bar, with circuit breaker pivot matched with auxiliary switch, set up the auxiliary power supply binding post on the outer wall of base, auxiliary switch be connected with auxiliary power supply binding post electricity, auxiliary power supply binding post, zero sequence transformer and electric leakage protection circuit board between be connected with the wire respectively.
The beneficial effect of above-mentioned structure is: be provided with supplementary earth leakage protection module in the base, supplementary earth leakage protection module is connected on auxiliary power supply, auxiliary power supply is 220V or 380V, consequently, supplementary earth leakage protection module can not be burnt out because of the voltage is too high, thereby working voltage when the circuit breaker is 1140V, supplementary earth leakage protection module can also normally work, when the circuit breaker closes a floodgate, auxiliary switch moves and the switch-on along with the circuit breaker pivot, thereby supplementary earth leakage protection module begins work, when the electric leakage appears in the circuit, zero sequence transformer sends the leakage signal of monitoring to the earth leakage protection circuit board, the action of earth leakage protection circuit board control earth leakage release, earth leakage release drive circuit breaker traction lever, thereby can realize this earth leakage circuit breaker's separating brake, thereby the security of power consumption has been improved.
Particularly, the outer wall of the base is provided with a clamping groove, a clamping block is arranged on the base body of the auxiliary power supply wiring terminal, and the clamping block is clamped in the clamping groove and forms clamping matching of the auxiliary power supply wiring terminal and the base. The auxiliary power supply wiring terminal is connected with the base in a clamping and matching mode, so that the auxiliary power supply wiring terminal is convenient to assemble with the base, and the assembly efficiency of the leakage protection circuit breaker is improved.
Particularly, auxiliary switch include the casing, set up support frame in the casing, set up micro-gap switch on the support frame, rotate the setting on the support frame and with micro-gap switch matched with driving lever, the lower extreme of support frame be provided with a plurality of support fixture blocks, support fixture block respectively the joint inslot in the base, and constitute the joint cooperation of auxiliary switch and base, the one end of driving lever extend outside the casing and contradict in the circuit breaker pivot, the driving lever along with the action of circuit breaker pivot, and can realize micro-gap switch's switch-on or disconnection. Be provided with auxiliary switch in the base, when the circuit breaker combined floodgate, circuit breaker pivot drive auxiliary switch-on, earth leakage protection module and auxiliary power source switch-on to can realize the earth leakage protection function of this circuit breaker, and auxiliary switch adopts joint complex mode with the base to be connected, the assembly of the base of being convenient for and auxiliary switch is favorable to improving the assembly efficiency of product.
Particularly, the leakage release comprises a machine frame arranged in a base, a yoke arranged in the machine frame, a coil frame arranged on the yoke, a movable iron core arranged in the coil frame, a spring arranged in the coil frame and matched with the movable iron core, and a coil arranged on the coil frame and electrically connected with the leakage protection circuit board, wherein a push rod is arranged at one end of the movable iron core, and a hook-shaped part matched with a circuit breaker traction rod is arranged at one end of the push rod. The leakage tripping device is provided with a push rod which is linked with the movable iron core, and the push rod acts along with the movable iron core and can push a draw bar of the circuit breaker, so that the circuit breaker can be quickly opened.
Particularly, the framework on be provided with the joint space, earth leakage protection circuit board block in the joint space, and constitute the joint cooperation of framework and earth leakage protection circuit board, earth leakage protection circuit board on be provided with adjustment button, test button respectively. The circuit board and the mechanism frame are connected in a clamping and matching mode, so that the mechanism frame and the circuit board can be assembled conveniently, the assembly efficiency of the circuit breaker can be improved, and the leakage protection circuit board is provided with an adjusting button and a test button, so that the circuit breaker is convenient for a user to use.
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 embodiment of the present invention.
Fig. 4 is an internal structure diagram of an auxiliary switch according to an embodiment of the present invention.
Fig. 5 is a perspective view of the leakage release according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1-5, the embodiment of the utility model provides a moulded case leakage circuit breaker, including base 10, operating device 11, contact system 12, electrically conductive system 13, base 10 in be provided with supplementary earth leakage protection module 20, this supplementary electric leakage module 20 includes with circuit breaker traction lever 112 matched with electric leakage release 21, the electric leakage protection circuit board 22 that is connected with electric leakage release 21 electricity, suit zero sequence transformer 23 on inlet wire copper bar 131, with circuit breaker pivot 111 matched with auxiliary switch 24, the auxiliary power supply binding post 25 of setting on the outer wall of base 10, auxiliary switch 24 be connected with auxiliary power supply binding post 25 electricity, auxiliary power supply binding post 25, zero sequence transformer 23 and electric leakage protection circuit board 22 between be connected with the wire respectively.
As shown in fig. 2 and 3, a clamping groove 101 is formed in an outer wall of the base 10, a clamping block 252 is formed on a base 251 of the auxiliary power supply terminal 25, and the clamping block 252 is clamped in the clamping groove 101 to form a clamping fit between the auxiliary power supply terminal 25 and the base 10. The auxiliary power supply wiring terminal is connected with the base in a clamping and matching mode, so that the auxiliary power supply wiring terminal is convenient to assemble with the base, and the assembly efficiency of the leakage protection circuit breaker is improved. As shown in fig. 2 and 4, the auxiliary switch 24 includes a housing 241, a supporting frame 242 disposed in the housing 241, a micro switch 243 disposed on the supporting frame 242, and a driving lever 244 rotatably disposed on the supporting frame 242 and engaged with the micro switch 243, wherein a plurality of supporting latch blocks 245 are disposed at a lower end of the supporting frame 242, the supporting latch blocks 245 are respectively engaged with the engaging groove 102 in the base 10, and constitute an engaging engagement between the auxiliary switch 24 and the base 10, one end of the driving lever 244 extends out of the housing 241 and abuts against the circuit breaker rotating shaft 111, the driving lever 244 moves along with the circuit breaker rotating shaft 111, and can achieve the connection or disconnection of the micro switch 243. Be provided with auxiliary switch in the base, when the circuit breaker combined floodgate, circuit breaker pivot drive auxiliary switch-on, earth leakage protection module and auxiliary power source switch-on to can realize the earth leakage protection function of this circuit breaker, and auxiliary switch adopts joint complex mode with the base to be connected, the assembly of the base of being convenient for and auxiliary switch is favorable to improving the assembly efficiency of product. As shown in fig. 2 and 5, the electrical leakage release 21 includes a mechanism frame 211 disposed in the base 10, a yoke disposed in the mechanism frame 211, a coil frame disposed on the yoke, a movable iron core 212 disposed in the coil frame, a spring 213 disposed in the coil frame and engaged with the movable iron core 212, and a coil disposed on the coil frame and electrically connected to the electrical leakage protection circuit board 22, wherein a push rod 214 is disposed at one end of the movable iron core 212, and a hook 215 engaged with the breaker pull rod 112 is disposed at one end of the push rod 214. The leakage tripping device is provided with a push rod which is linked with the movable iron core, and the push rod acts along with the movable iron core and can push a draw bar of the circuit breaker, so that the circuit breaker can be quickly opened. Mechanism frame 211 on be provided with joint space 2110, earth leakage protection circuit board 22 block in joint space 2110, and constitute the joint cooperation of mechanism frame 211 and earth leakage protection circuit board 22, earth leakage protection circuit board 22 on be provided with adjustment button 221, test button 222 respectively. The circuit board and the mechanism frame are connected in a clamping and matching mode, so that the mechanism frame and the circuit board can be assembled conveniently, the assembly efficiency of the circuit breaker can be improved, and the leakage protection circuit board is provided with an adjusting button and a test button, so that the circuit breaker is convenient for a user to use.
Be provided with supplementary earth leakage protection module in the base, supplementary earth leakage protection module is connected on auxiliary power supply, auxiliary power supply is 220V or 380V, consequently, supplementary earth leakage protection module can not be burnt out because of the voltage is too high, thereby working voltage when the circuit breaker is 1140V, supplementary earth leakage protection module can also normally work, when the circuit breaker closes a floodgate, auxiliary switch moves and the switch-on along with the circuit breaker pivot, thereby supplementary earth leakage protection module begins work, when the electric leakage appears in the circuit, zero sequence transformer sends the leakage signal of monitoring to the earth leakage protection circuit board, the action of earth leakage protection circuit board control earth leakage release, earth leakage release drive circuit breaker traction lever, thereby can realize this earth leakage circuit breaker's separating brake, thereby the security of power consumption has been improved.
Claims (5)
1. The utility model provides a moulded case leakage circuit breaker, includes base, operating device, contact system, electrically conductive system, its characterized in that: the base in be provided with supplementary earth leakage protection module, this supplementary earth leakage module include with circuit breaker traction lever matched with electric leakage release, with the electric leakage protection circuit board that electric leakage release is connected, the zero sequence transformer of suit on the inlet wire copper bar, with circuit breaker pivot matched with auxiliary switch, set up the auxiliary power supply binding post on the outer wall of base, auxiliary switch be connected with auxiliary power supply binding post electricity, auxiliary power supply binding post, zero sequence transformer and electric leakage protection circuit board between be connected with the wire respectively.
2. A molded case residual current circuit breaker according to claim 1, characterized in that: the outer wall of the base is provided with a clamping groove, the base body of the auxiliary power supply wiring terminal is provided with a clamping block, and the clamping block is clamped in the clamping groove and forms clamping matching of the auxiliary power supply wiring terminal and the base.
3. A molded case residual current circuit breaker according to claim 1 or 2, characterized in that: auxiliary switch include the casing, set up support frame in the casing, set up micro-gap switch on the support frame, rotate the setting on the support frame and with micro-gap switch matched with driving lever, the lower extreme of support frame be provided with a plurality of support fixture blocks, support fixture block joint inslot in the base respectively, and constitute the joint cooperation of auxiliary switch and base, the one end of driving lever extend outside the casing and contradict in the circuit breaker pivot, the driving lever along with the action of circuit breaker pivot, and can realize micro-gap switch's switch-on or disconnection.
4. A molded case residual current circuit breaker according to claim 1 or 2, characterized in that: the electric leakage tripper comprises a machine frame arranged in a base, a yoke arranged in the machine frame, a coil frame arranged on the yoke, a movable iron core arranged in the coil frame, a spring arranged in the coil frame and matched with the movable iron core, and a coil arranged on the coil frame and electrically connected with an electric leakage protection circuit board, wherein a push rod is arranged at one end of the movable iron core, and a hook-shaped part matched with a circuit breaker traction rod is arranged at one end of the push rod.
5. A molded case residual current circuit breaker according to claim 4, characterized in that: the electromechanical frame on be provided with the joint space, earth leakage protection circuit board block in the joint space, and constitute the joint cooperation of electromechanical frame and earth leakage protection circuit board, earth leakage protection circuit board on be provided with adjustment button, test button respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922043744.2U CN210443513U (en) | 2019-11-22 | 2019-11-22 | Plastic case leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922043744.2U CN210443513U (en) | 2019-11-22 | 2019-11-22 | Plastic case leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210443513U true CN210443513U (en) | 2020-05-01 |
Family
ID=70412320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922043744.2U Active CN210443513U (en) | 2019-11-22 | 2019-11-22 | Plastic case leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210443513U (en) |
-
2019
- 2019-11-22 CN CN201922043744.2U patent/CN210443513U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Wu Inventor after: Tang Lin Inventor before: Zhang Wu Inventor before: Tang Lin Inventor before: Chen Yifeng |
|
| CB03 | Change of inventor or designer information |