CN201838987U - Automatic reset breaker with high safety - Google Patents
Automatic reset breaker with high safety Download PDFInfo
- Publication number
- CN201838987U CN201838987U CN2010205995808U CN201020599580U CN201838987U CN 201838987 U CN201838987 U CN 201838987U CN 2010205995808 U CN2010205995808 U CN 2010205995808U CN 201020599580 U CN201020599580 U CN 201020599580U CN 201838987 U CN201838987 U CN 201838987U
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- pair
- power
- control circuit
- contact
- high safety
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Abstract
The utility model relates to a breaker, in particular to an automatic reset breaker with high safety, which comprises an electromagnetic leakage release, a control circuit and a pair of protective contacts, a pair of power lines connected with mains supply penetrates through an aftercurrent mutual inductor, the other ends of the power lines are connected with a load, the pair of protective contacts is connected into the pair of power lines in series, a pair of control supply incoming lines of the control circuit and the electromagnetic leakage release is respectively connected onto the power lines connected with the mains supply, and two contacts are respectively arranged at the different sides of the protective contacts. In the automatic reset breaker with high safety provided by the utility model, after the electromagnetic leakage release is operated, at least one of the pair of control supply incoming lines of the control circuit and the electromagnetic leakage release is disconnected with the mains supply, so that an electronic building brick board provided with the control circuit can not get power supply so as to be protected, the safety is improved, the service life of the automatic reset breaker is prolonged, and the mains supply can be accessed from any end.
Description
Technical field
The utility model relates to a kind of circuit breaker, particularly a kind of high safety circuit breaker that automatically resets.
Background technology
The general circuit breaker that automatically resets (being called for short RCBO) electrical schematic diagram generally includes overload release, electromagnetism short-circuit release, electromagnetism leakage tripping device, residual current transformer, control circuit and a pair of protection contact as shown in Figure 1.The power line of a pair of connection civil power passes residual current transformer, and described a pair of protection contact is serially connected in the power line, and the power input of control circuit and electromagnetism leakage tripping device is connected load end one side of a pair of protection contact.This mode of connection automatically reset circuit breaker after product closes a floodgate, the electric sub-member plate that control circuit is installed promptly obtains power supply, starts working, when leak current fault appearred in the load end electrical appliance, RCBO disconnected, electric sub-member plate does not have electricity and disconnects, and is protected.The benefit of the circuit breaker that automatically resets of this mode of connection be electric sub-member plate can be when product thread off to disconnect non-transformer, electric sub-member plate can access better protect.But, this mode of connection also has a shortcoming: be exactly that the user must advance power supply from an end (being power end) of product, the other end (being load end) must strictness connect load, if wrong, electronic circuit board will be charged always when fault takes place, directly send a telegraph the sub-component plate and burn, have the personal safety hidden danger of getting an electric shock when serious.And the user in use, easily wrong; In addition, if the link direction, the wiring inconvenience, the user in use will waste more lead and installation work-hour, is unfavorable for the user installation use.
Summary of the invention
The high safety that the purpose of this utility model is to provide a kind of not only safety but also need not the to limit terminals circuit breaker that automatically resets.
In order to achieve the above object; the utility model discloses a kind of high safety circuit breaker that automatically resets; comprise electromagnetism leakage tripping device, control circuit and a pair of protection contact; the power line of a pair of connection civil power passes residual current transformer; the power line other end is connected with load; described a pair of protection contact is serially connected in the power line; it is characterized in that: the pair of control power input line of described control circuit and electromagnetism leakage tripping device is connected on the power line that connects civil power, and two contacts are in the not homonymy of protecting the contact respectively simultaneously.
Compared with prior art; the control circuit because high safety automatically resets in the circuit breaker and the pair of control power input line of electromagnetism leakage tripping device are connected on the power line that connects civil power; two contacts are in the not homonymy of protecting the contact respectively simultaneously; therefore after high safety automatically resets the action of circuit breaker electric magnetic leakage electricity release; have one and civil power disconnection in the pair of control power input line of control circuit and electromagnetism leakage tripping device at least; the electric sub-member plate that control circuit is installed promptly can not get power supply; electric sub-member plate is protected; improved fail safe; prolonged the useful life of the circuit breaker that automatically resets, and no matter civil power is to go into all equally from that termination.
As further setting of the present utility model, be connected civil power in be serially connected with spacing contact in the described control power input line that is connected of the power line of live wire, described spacing contact with the protection contact with controlled by the electromagnetism leakage tripping device.
After above-mentioned the setting arranged, after high safety automatically reset the action of circuit breaker electric magnetic leakage electricity release, described spacing contact will cut off being connected between electric sub-member plate and the civil power live wire, has thoroughly disconnected the adventurous external power source of human body, avoid occurring the electric shock phenomenon, guaranteed personal safety.
The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Accompanying drawing 1 is the prior art circuits schematic diagram;
Accompanying drawing 2 is the utility model specific embodiment 1 circuit theory schematic diagram;
Accompanying drawing 3 is the utility model specific embodiment 2 circuit theory schematic diagrames.
Embodiment
The high circuit breaker that automatically resets safely still comprises overload release 1, electromagnetism short-circuit release 2, electromagnetism leakage tripping device 3, residual current transformer 4, control circuit 5 and a pair of protection contact K1.The power line of a pair of connection civil power passes residual current transformer 4; described overload release 1 and electromagnetism short-circuit release 2 are serially connected in and are used for detecting the operating current that power line flows through in the power line; in power line, also be serially connected with a pair of protection contact K1; the pair of control power input line 6 of described control circuit is connected on the power line that connects civil power; electromagnetism leakage tripping device 3 is connected in the control power input line 6, controls two contacts that power input line 6 is connected with power line simultaneously and is in the not homonymy of protecting contact k1 respectively.Protection contact K1 is the control that is subjected to overload release 1, electromagnetism short-circuit release 2 and electromagnetism leakage tripping device 3; operating current transships or electromagnetism short-circuit release 2 detects circuit breaker or short circuit phenomenon appears in load when overload release 1 detects; and residual current transformer 4 detects circuit and the electric leakage situation occurs and all can trigger release and thread off, and two protection contact K1 disconnected cut off the load-side power supplys.
Though having solved, the scheme in the specific embodiment 1 no matter goes into civil power from any termination, all can cut off the problem of the working power on the electric sub-member plate that control circuit is installed in the action back of threading off, but also have a shortcoming, be in the quarter-phase circuit, still, still there is the danger of getting an electric shock not from complete and mains insulation isolation physically.For this reason; under the identical situation of other structures and specific embodiment 1; with be connected civil power in be serially connected with spacing contact K3 in the described control power input line 6 that is connected of the power line of live wire, described spacing contact K3 with protection contact K1 with being subjected to 3 controls of electromagnetism leakage tripping device.Like this after high safety automatically resets the action of circuit breaker electric magnetic leakage electricity release, described spacing contact K3 will cut off being connected between electric sub-member plate and the civil power live wire, thoroughly disconnected the adventurous external power source of human body, avoided occurring the electric shock phenomenon, guaranteed personal safety.
Claims (2)
1. high safety circuit breaker that automatically resets; comprise electromagnetism leakage tripping device, control circuit and a pair of protection contact; the power line of a pair of connection civil power passes residual current transformer; the power line other end is connected with load; described a pair of protection contact is serially connected in the power line; it is characterized in that: the pair of control power input line of described control circuit and electromagnetism leakage tripping device is connected on the power line that connects civil power, and two contacts are in the not homonymy of protecting the contact respectively simultaneously.
2. the high circuit breaker that automatically resets safely according to claim 1; it is characterized in that: be connected civil power in also be serially connected with spacing contact in the described control power input line that is connected of the power line of live wire, described spacing contact with the protection contact with controlled by the electromagnetism leakage tripping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205995808U CN201838987U (en) | 2010-11-10 | 2010-11-10 | Automatic reset breaker with high safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205995808U CN201838987U (en) | 2010-11-10 | 2010-11-10 | Automatic reset breaker with high safety |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201838987U true CN201838987U (en) | 2011-05-18 |
Family
ID=44009087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205995808U Expired - Lifetime CN201838987U (en) | 2010-11-10 | 2010-11-10 | Automatic reset breaker with high safety |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201838987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013362A (en) * | 2010-11-10 | 2011-04-13 | 浙江德隆电器有限公司 | High-safety automatic resetting breaker |
-
2010
- 2010-11-10 CN CN2010205995808U patent/CN201838987U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013362A (en) * | 2010-11-10 | 2011-04-13 | 浙江德隆电器有限公司 | High-safety automatic resetting breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |