CN204045526U - A kind of automatic switching-on device for old-fashioned circuit breaker - Google Patents
A kind of automatic switching-on device for old-fashioned circuit breaker Download PDFInfo
- Publication number
- CN204045526U CN204045526U CN201420423813.7U CN201420423813U CN204045526U CN 204045526 U CN204045526 U CN 204045526U CN 201420423813 U CN201420423813 U CN 201420423813U CN 204045526 U CN204045526 U CN 204045526U
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- Prior art keywords
- breaker
- circuit
- normally
- old
- automatic switching
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- Expired - Fee Related
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- 230000005611 electricity Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Keying Circuit Devices (AREA)
Abstract
The utility model discloses a kind of automatic switching-on device for old-fashioned circuit breaker, comprise breaker body power-off and assist normally-closed contact, two air switches of the two ends difference connecting breaker of the series circuit that breaker body power-off assists normally-closed contact and auxiliary relay coil to form itself, the normally opened contact of auxiliary relay and time relay coil form two air switches of series circuit two ends difference connecting breaker itself, one of them air switch also manually switch knob connect closing circuit, closing by hand button is parallel with time relay normally opened contact, this apparatus structure is simple, practical and convenient, for existing old-fashioned circuit breaker provides automatic switching-in function, also improves the operating efficiency of staff simultaneously.
Description
Technical field
The utility model relates to breaker closing technical field, particularly relates to a kind of automatic switching-on device for old-fashioned circuit breaker.
Background technology
Circuit breaker refer to can to close, carry and cut-off the electric current under normal loop condition and can close, the switching device of carrying and the electric current under cut-offfing abnormal loop condition in official hour.At present, in power domain uses, there is the circuit breaker of new research and development and old-fashioned circuit breaker, the circuit breaker self of new research and development with automatic switching-in function, in use easily; But old-fashioned circuit breaker can not carry out automatic closing, need to close a floodgate manually, very inconvenient, if all replace old-fashioned circuit breaker, workload is larger, time-consuming.
Utility model content
The purpose of this utility model is to provide a kind of automatic switching-on device for old-fashioned circuit breaker, can guarantee when circuit breaker is energized again, automatically complete closing function, improves automation performance.
The technical solution adopted in the utility model is:
A kind of automatic switching-on device for old-fashioned circuit breaker, comprise breaker body power-off and assist normally-closed contact, two air switches of the two ends difference connecting breaker of the series circuit that breaker body power-off assists normally-closed contact and auxiliary relay coil to form itself, the normally opened contact of auxiliary relay and time relay coil form two air switches of series circuit two ends difference connecting breaker itself, one of them air switch also manually switch knob connect closing circuit, closing by hand button is parallel with time relay normally opened contact.
The utility model utilizes breaker body power-off to assist the break-make of normally-closed contact to control auxiliary relay coil and obtains dead electricity, thus control the normally opened contact action of auxiliary relay, then control time relay coil dead electricity, then the closed and disconnection of the normally opened contact of control time relay, normally opened contact due to the time relay is serially connected with in combined floodgate circuit, when the normally opened contact of the time relay closes, combined floodgate power on circuitry, completes the object of automatic closing; This apparatus structure is simple, practical and convenient, for existing old-fashioned circuit breaker provides automatic switching-in function, also improves the operating efficiency of staff simultaneously.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
As shown in Fig. 1, the utility model comprises breaker body power-off and assists normally-closed contact DF, two air switch DK1 of the two ends difference connecting breaker of the series circuit that breaker body power-off assists normally-closed contact DF and auxiliary relay coil ZJ to form itself, DK2, the normally opened contact ZJ1 of auxiliary relay and time relay coil SJ forms two air switch DK1 of series circuit two ends difference connecting breaker itself, DK2, one of them air switch DK1 or DK2 also manually switch knob HA connect closing circuit, closing by hand button HA is parallel with time relay normally opened contact SJ1.
Operation principle of the present utility model:
When circuit because time fault has a power failure suddenly or other extraneous factors have a power failure, breaker body power-off assists normally-closed contact DF to close, when circuit recovers normal power-up, because normally-closed contact DF closure state is assisted in breaker body power-off, and air switch DK1, DK2 itself is in closure state, so the series circuit that the power-off of conducting breaker body assists normally-closed contact DF and auxiliary relay coil ZJ to form, namely auxiliary relay coil ZJ obtains electric, auxiliary relay normally opened contact ZJ1 is closed, thus make the time relay coil SJ connected with it obtain electric, electric after be in delay state, treat that delay time reaches set point, the normally opened contact SJ1 of the time relay is then made to close, conducting combined floodgate circuit thereupon.Because the normally opened contact SJ1 of the time relay is in parallel with closing by hand button HA, so, even if closing by hand button HA is in the state of disconnection, as long as the normally opened contact SJ1 of the time relay closes, just can make combined floodgate circuit turn-on, reach the object of automatic closing.
Claims (1)
1. the automatic switching-on device for old-fashioned circuit breaker, it is characterized in that: comprise breaker body power-off and assist normally-closed contact, two air switches of the two ends difference connecting breaker of the series circuit that breaker body power-off assists normally-closed contact and auxiliary relay coil to form itself, the normally opened contact of auxiliary relay and time relay coil form two air switches of series circuit two ends difference connecting breaker itself, one of them air switch also manually switch knob connect closing circuit, closing by hand button is parallel with time relay normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423813.7U CN204045526U (en) | 2014-07-30 | 2014-07-30 | A kind of automatic switching-on device for old-fashioned circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423813.7U CN204045526U (en) | 2014-07-30 | 2014-07-30 | A kind of automatic switching-on device for old-fashioned circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045526U true CN204045526U (en) | 2014-12-24 |
Family
ID=52246164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420423813.7U Expired - Fee Related CN204045526U (en) | 2014-07-30 | 2014-07-30 | A kind of automatic switching-on device for old-fashioned circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204045526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078034A (en) * | 2021-04-26 | 2021-07-06 | 福建工程学院 | Household air switch device capable of automatically switching on after tripping and control method |
-
2014
- 2014-07-30 CN CN201420423813.7U patent/CN204045526U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078034A (en) * | 2021-04-26 | 2021-07-06 | 福建工程学院 | Household air switch device capable of automatically switching on after tripping and control method |
| CN113078034B (en) * | 2021-04-26 | 2023-04-21 | 福建工程学院 | Air switch device for automatic closing after tripping for household and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20210730 |