CN203536927U - Emergency protection circuit provided with indicating lamp - Google Patents
Emergency protection circuit provided with indicating lamp Download PDFInfo
- Publication number
- CN203536927U CN203536927U CN201320673982.1U CN201320673982U CN203536927U CN 203536927 U CN203536927 U CN 203536927U CN 201320673982 U CN201320673982 U CN 201320673982U CN 203536927 U CN203536927 U CN 203536927U
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- contactor
- emergency
- air switch
- emergent
- normally opened
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Abstract
The utility model relates to an emergency protection circuit provided with an indicating lamp comprising a main circuit. The main circuit adopts an air switch QF1, one end of the air switch QF1 is connected with a grid power supply 220V AC current, and the other end of the air switch QF1 is connected with an input end of an AC contactor KM1. An output end of the AC contactor KM1 can be used to output the 220V AC current to an electric device. An indicating circuit, an operation control circuit, and an emergency control circuit are connected between the air switch QF1 and the AC contactor KM1. When the electric device breaks down, the power supply can be cut off quickly, safely, and reliably. When the emergency situation occurs, an emergency button SB2 can be pressed, the AC contactor KM1 is powered off, and the working power supply input can be cut off, and at the same time, an emergency indicating lamp H3 can be turned on. The emergency protection circuit provided with the indicating lamp is advantageous in that after the emergency situation, the emergency indicating lamp H3 is used for the indicating; the AC contactor KM1 having the arc extinguishing function can be provided; the stopping switch provided with the self-locking function is adopted, and the relay self-locking of the emergency relay KM2 is adopted; and after the emergency situation, the grid power supply can be started after the resetting of the air switch QF1.
Description
Technical field
The utility model relates to a kind of emergency protection circuit, especially a kind of emergency protection circuit with indicator light.
Background technology
At present, existing emergency protection circuit adopts protection switch more, and protection switch is only a kind of mechanical self-latching switch, in the situation that frequency of utilization is high, easily protection switch itself is caused to damage, and protection switch snap close cannot be played a protective role; Meanwhile, protection switch is simple in structure, cannot realize electronics self-locking, and after protection, protection switch itself can restore electricity, and fail safe, the reliability of protection are poor.In addition, protection switch adopts mechanical trip switching at present, and because actuating length is short, people are difficult to find protection switch is in what state.
Utility model content
It is a kind of when emergent that the purpose of this utility model is to provide, can fast shut-off work network source; After emergent, assurance cannot startup work with the emergency protection circuit with indicator light of network source.
For achieving the above object, the utility model has adopted following technical scheme: a kind of emergency protection circuit with indicator light, comprise major loop, major loop adopts air switch QF1, one termination network source 220V alternating current, its other end is connected with the input of A.C. contactor KM1, and the output output 220V alternating current of A.C. contactor KM1 is to power consumption equipment; Indication loop, operation control loop, emergent control loop are all connected between air switch QF1 and A.C. contactor KM1.
Also comprise power supply indicator H1, power supply indicator H1 is connected between air switch QF1 and A.C. contactor KM1.
Described indication loop comprises run indicator H2 and emergent indicator light H3, and run indicator H2 is connected between air switch QF1 and A.C. contactor KM1 after connecting with the normally opened contact of A.C. contactor KM1; After connecting with the normally opened contact of emergent relay K M2, emergent indicator light H3 is connected between air switch QF1 and A.C. contactor KM1.
Described operation control loop comprises operation button SB1, and the normally opened contact of operation button SB1, the normally-closed contact of emergency button SB2, the emergent normally-closed contact of relay K M2 are, be connected between air switch QF1 and A.C. contactor KM1 after the series connection of the coil of A.C. contactor KM1.
Described emergent control loop comprises emergency button SB2, after the coil series connection of the normally opened contact of emergency button SB2, emergent relay K M2, is connected between air switch QF1 and A.C. contactor KM1.
The normally opened contact of described A.C. contactor KM1 is attempted by the normally opened contact of operation button SB1.
The normally opened contact of described emergent relay K M2 is attempted by the normally opened contact of emergency button SB2.
As shown from the above technical solution, the utility model, can be fast, safety, reliably cut off the electricity supply when power consumption equipment breaks down, when in case of emergency, press emergency button SB2, A.C. contactor KM1 dead electricity, the input of cut-out working power, emergent indicator light H3 lights simultaneously.The utility model, after meeting an urgent need, has emergent indicator light H3 indication; Employing has the A.C. contactor KM1 of arc-suppression function; Do not adopt the shutdown switch with self-locking, and adopt the relay self-locking of emergent relay K M2; After emergent, through air switch QF1, reset, could start network source.
Accompanying drawing explanation
Fig. 1,2,3,4 is respectively the wiring schematic diagram of major loop in the utility model, indication loop, operation control loop, emergent control loop.
Embodiment
A kind of emergency protection circuit with indicator light, comprise major loop 1, major loop 1 adopts air switch QF1, one termination network source 220V alternating current, its other end is connected with the input of A.C. contactor KM1, and the output output 220V alternating current of A.C. contactor KM1 is to power consumption equipment; Indication loop 2, operation control loop 3, emergent control loop 4 are all connected between air switch QF1 and A.C. contactor KM1.Also comprise power supply indicator H1, power supply indicator H1 is connected between air switch QF1 and A.C. contactor KM1, and as shown in Figure 1, when air switch QF1 closes, power supply indicator H1 lights.
As shown in Figure 2, described indication loop 2 comprises run indicator H2 and emergent indicator light H3, and run indicator H2 is connected between air switch QF1 and A.C. contactor KM1 after connecting with the normally opened contact of A.C. contactor KM1; After connecting with the normally opened contact of emergent relay K M2, emergent indicator light H3 is connected between air switch QF1 and A.C. contactor KM1.
As shown in Figure 3, described operation control loop 3 comprises operation button SB1, and the normally opened contact of operation button SB1, the normally-closed contact of emergency button SB2, the emergent normally-closed contact of relay K M2 are, be connected between air switch QF1 and A.C. contactor KM1 after the series connection of the coil of A.C. contactor KM1.The normally opened contact of described A.C. contactor KM1 is attempted by the normally opened contact of operation button SB1.When pressing operation button SB1, the coil of A.C. contactor KM1 obtains electric, A.C. contactor KM1 adhesive, and the normally opened contact of A.C. contactor KM1 is closed, to power consumption equipment, provides working power.As shown in Figure 3, because run indicator H2 connects with the normally opened contact of A.C. contactor KM1, at this moment the normally opened contact of A.C. contactor KM1 is closed, and run indicator H2 lights.As shown in Figure 3, another normally opened contact of A.C. contactor KM1 is in parallel with operation button SB1 normally opened contact, and when unclamping operation button SB1, due to the self-locking of A.C. contactor KM1 normally opened contact, A.C. contactor KM1 keeps attracting state.
As shown in Figure 4, described emergent control loop 4 comprises emergency button SB2, after the coil series connection of the normally opened contact of emergency button SB2, emergent relay K M2, is connected between air switch QF1 and A.C. contactor KM1.The normally opened contact of described emergent relay K M2 is attempted by the normally opened contact of emergency button SB2.As shown in Figure 3, when pressing emergency button SB2, one road normally-closed contact disconnects, and makes to be connected on the A.C. contactor KM1 coil losing electricity in operation control loop 3, and A.C. contactor KM1 disconnects, and cuts off the working power of power consumption equipment; As shown in Figure 4, another road normally opened contact of emergency button SB2 is closed, and emergent relay K M2 coil obtains electric, and emergent relay K M2 adhesive makes the A.C. contactor KM1 coil being connected in operation control loop 3 cannot continue electricly.Another normally opened contact of A.C. contactor KM2 is parallel to the normally opened contact of emergency button SB2, and when unclamping emergency button SB2, due to the normally opened contact self-locking of emergent relay K M2, emergent relay K M2 keeps attracting state.At this moment, then press operation button SB1, because the emergent relay K M2 normally-closed contact being connected in operation control loop 3 disconnects, A.C. contactor KM1 cannot adhesive, power consumption equipment cannot obtain working power, prevent power consumption equipment because of fault emergent after, startup work network source.
In sum, the utility model, can be fast, safety, reliably cut off the electricity supply when power consumption equipment breaks down, and when in case of emergency, presses emergency button SB2, and A.C. contactor KM1 dead electricity, cuts off working power input, and emergent indicator light H3 lights simultaneously.The utility model, after meeting an urgent need, has emergent indicator light H3 indication; Employing has the A.C. contactor KM1 of arc-suppression function; Do not adopt the shutdown switch with self-locking, and adopt the relay self-locking of emergent relay K M2; After emergent, through air switch QF1, reset, could start network source.
Claims (7)
1. the emergency protection circuit with indicator light, it is characterized in that: comprise major loop (1), major loop (1) adopts air switch QF1, one termination network source 220V alternating current, its other end is connected with the input of A.C. contactor KM1, and the output output 220V alternating current of A.C. contactor KM1 is to power consumption equipment; Indication loop (2), operation control loop (3), emergent control loop (4) are all connected between air switch QF1 and A.C. contactor KM1.
2. the emergency protection circuit with indicator light according to claim 1, is characterized in that: also comprise power supply indicator H1, power supply indicator H1 is connected between air switch QF1 and A.C. contactor KM1.
3. the emergency protection circuit with indicator light according to claim 1, it is characterized in that: described indication loop (2) comprises run indicator H2 and emergent indicator light H3, run indicator H2 is connected between air switch QF1 and A.C. contactor KM1 after connecting with the normally opened contact of A.C. contactor KM1; After connecting with the normally opened contact of emergent relay K M2, emergent indicator light H3 is connected between air switch QF1 and A.C. contactor KM1.
4. the emergency protection circuit with indicator light according to claim 1; it is characterized in that: described operation control loop (3) comprises operation button SB1, the normally opened contact of operation button SB1, the normally-closed contact of emergency button SB2, the emergent normally-closed contact of relay K M2 are, be connected between air switch QF1 and A.C. contactor KM1 after the series connection of the coil of A.C. contactor KM1.
5. the emergency protection circuit with indicator light according to claim 1; it is characterized in that: described emergent control loop (4) comprises emergency button SB2, after the coil series connection of the normally opened contact of emergency button SB2, emergent relay K M2, be connected between air switch QF1 and A.C. contactor KM1.
6. the emergency protection circuit with indicator light according to claim 4, is characterized in that: the normally opened contact of described A.C. contactor KM1 is attempted by the normally opened contact of operation button SB1.
7. the emergency protection circuit with indicator light according to claim 5, is characterized in that: the normally opened contact of described emergent relay K M2 is attempted by the normally opened contact of emergency button SB2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673982.1U CN203536927U (en) | 2013-10-30 | 2013-10-30 | Emergency protection circuit provided with indicating lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673982.1U CN203536927U (en) | 2013-10-30 | 2013-10-30 | Emergency protection circuit provided with indicating lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536927U true CN203536927U (en) | 2014-04-09 |
Family
ID=50423103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673982.1U Expired - Fee Related CN203536927U (en) | 2013-10-30 | 2013-10-30 | Emergency protection circuit provided with indicating lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536927U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532085A (en) * | 2013-10-30 | 2014-01-22 | 安徽英特电子有限公司 | Emergency protection circuit provided with indicator light |
| CN107053213A (en) * | 2017-06-01 | 2017-08-18 | 江苏维力安智能科技有限公司 | A kind of wu-zhi-shan pig jerk recovers control loop |
| CN108107358A (en) * | 2018-01-25 | 2018-06-01 | 国网江苏省电力有限公司徐州供电分公司 | Portable voltage mutual inductor auxiliary air closing detecting apparatus and method of discrimination |
| CN108287306A (en) * | 2018-01-25 | 2018-07-17 | 国网江苏省电力有限公司徐州供电分公司 | Detection voltage transformer secondary air switch system and fault distinguishing method in real time |
-
2013
- 2013-10-30 CN CN201320673982.1U patent/CN203536927U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532085A (en) * | 2013-10-30 | 2014-01-22 | 安徽英特电子有限公司 | Emergency protection circuit provided with indicator light |
| CN103532085B (en) * | 2013-10-30 | 2016-04-27 | 安徽英特电子有限公司 | With the emergency protection circuit of indicator light |
| CN107053213A (en) * | 2017-06-01 | 2017-08-18 | 江苏维力安智能科技有限公司 | A kind of wu-zhi-shan pig jerk recovers control loop |
| CN108107358A (en) * | 2018-01-25 | 2018-06-01 | 国网江苏省电力有限公司徐州供电分公司 | Portable voltage mutual inductor auxiliary air closing detecting apparatus and method of discrimination |
| CN108287306A (en) * | 2018-01-25 | 2018-07-17 | 国网江苏省电力有限公司徐州供电分公司 | Detection voltage transformer secondary air switch system and fault distinguishing method in real time |
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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 |
Granted publication date: 20140409 Termination date: 20161030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |