CN210202150U - Multi-ground control circuit of electric equipment - Google Patents
Multi-ground control circuit of electric equipment Download PDFInfo
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- CN210202150U CN210202150U CN201920582498.5U CN201920582498U CN210202150U CN 210202150 U CN210202150 U CN 210202150U CN 201920582498 U CN201920582498 U CN 201920582498U CN 210202150 U CN210202150 U CN 210202150U
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Abstract
The utility model discloses an electric equipment's control scheme of many places. The main loop consists of a circuit breaker and a main contact of a contactor; the control circuit mainly comprises two intermediate relays, a contactor and a plurality of self-reset switches. The electric equipment multi-ground control is realized by controlling the connection and disconnection of the main contact of the contactor in the main circuit through the self-reset switch. Through the technical scheme of the utility model, the control circuit can effectively realize multi-place control of the electric equipment under the condition of using a conventional single control switch, and the circuit built by adopting the intermediate relay has high reliability; the contactor can realize effective on-off of a high-power loop, the control mode is low in investment, and wiring is simple and clear.
Description
Technical Field
The utility model belongs to the electrical control field specifically is a many places control scheme of consumer.
Background
In the fields of petrochemical industry, electric power, steel, machinery, processing, commercial meeting places, civil buildings and the like, a large number of large plants and buildings with multiple entrances and exits are built, lighting lamps or other electric equipment in the buildings are generally controlled by one place or two places by arranging a switch at one entrance or two double-control switches at two entrances and exits, and switch devices for controlling the electric equipment are not arranged at other entrances and exits. The great inconvenience that brings for the switch of consumer like this can only be at the access & exit control consumer that sets up the switch, and personnel shuttle back and forth reduces work efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that exists among the background art, provided a many places control scheme of consumer, guarantee using conventional from the circumstances of reset single control switch under, all can set up the switch at any access & exit, realize controlling many places of high-power return circuit consumer in large-scale factory building and the building.
The technical scheme is as follows: a multi-ground control circuit of electric equipment comprises a plurality of self-reset switches S1, S2, … … and Sn, a first intermediate relay KA1, a second intermediate relay KA2, a contactor KM and a breaker QF, wherein the self-reset switches are arranged at different places and are connected in parallel to form a control device;
in the control circuit of the coil of the first intermediate relay KA 1:
the head end of the control device is connected to a phase line L1, and the tail end of the control device is connected with the head end of a normally closed contact of a second intermediate relay KA 2; the tail end of the normally closed contact of the second intermediate relay KA2 is connected with the head end of the normally open contact of the first intermediate relay KA1 on one hand, and is connected with the head end of the normally closed contact of the contactor KM on the other hand; the tail end of the normally open contact of the first intermediate relay KA1 and the tail end of the normally closed contact of the contactor KM are commonly connected to one end of the coil of the first intermediate relay KA1, and the other end of the coil of the first intermediate relay KA1 is connected to the neutral line N;
in the control circuit of the coil of the second intermediate relay KA 2:
the head end of the control device is connected to a phase line L1, and the tail end of the control device is connected with the head end of a normally closed contact of a first intermediate relay KA 1; the tail end of the normally-closed contact of the first intermediate relay KA1 is connected with the head end of the normally-open contact of the second intermediate relay KA2 on one hand, and is connected with the head end of the normally-open contact of the contactor KM on the other hand; the tail end of the normally open contact of the second intermediate relay KA2 and the tail end of the normally open contact of the contactor KM are commonly connected to one end of the coil of the second intermediate relay KA2, and the other end of the coil of the second intermediate relay KA2 is connected to the neutral line N;
in the control loop of the coil of contactor KM:
the head end of a normally closed contact of the second intermediate relay KA2 is connected to the phase line L1; the tail end of the normally-closed contact of the second intermediate relay KA2 is connected with the head end of the normally-open contact of the first intermediate relay KA1 on one hand, and is connected with the head end of the normally-open contact of the contactor KM on the other hand; the tail end of a normally open contact of the first intermediate relay KA1 and the tail end of a normally open contact of the contactor KM are connected to one end of a coil of the contactor KM together, and the other end of the coil of the contactor KM is connected to a neutral line N;
in the main loop:
phase line L connects the head end of circuit breaker QF, and phase line L1 is connected on the one hand to the tail end of circuit breaker QF, and the head end of the main contact of on the other hand connection contactor KM, the tail end connection lamp group FL's of contactor KM one end, and the other end of lamp group FL is connected to neutral conductor N.
In a preferred embodiment, the respective reset switches are located at different entrances and exits of a large building or building.
Preferably, the electric equipment is a lighting lamp.
The beneficial effects of the utility model
Through the technical scheme of the utility model, the control circuit can effectively realize multi-place control of the electric equipment under the condition of using a conventional single control switch, and the circuit built by adopting the intermediate relay has high reliability; the contactor can realize effective on-off of a high-power loop, the control mode is low in investment, and wiring is simple and clear.
Drawings
Fig. 1 is a wiring diagram of multi-control of the lighting fixture in the embodiment.
Detailed Description
The present invention will be further explained with reference to the following examples, but the scope of the present invention is not limited thereto:
the embodiment uses consumer as the illumination lamps and lanterns for the example to be right the technical scheme of the utility model explains, and figure 1 gives the initial condition of illumination lamps and lanterns control scheme many places, and concrete wiring structure is as technical scheme said, and it is no longer repeated here.
In the lighting-on step, any one of the switches is pressed as in S1:
KA1 coil loop: after the coil of the first intermediate relay KA1 (for example, N22E 80) is electrified, the coil is attracted, and the normally open contact of the first intermediate relay KA1 is closed.
In the KM coil loop: the normally open contact of the first intermediate relay KA1 is closed, the coil of the contactor KM is attracted after being electrified, and the normally open contact of the contactor KM is closed and simultaneously locks the normally open contact of the first intermediate relay KA 1.
KA2 coil loop: the normally closed contacts of the first intermediate relay KA1 are opened, the normally open contacts of the contactor KM (e.g. a9-30-22) are closed, and the coil of the second intermediate relay KA2 (e.g. N22E 80) is still de-energized.
In the main loop: the main contact of the contactor KM is closed and the lighting lamp FL is lighted by receiving power.
After the switch S1 is loosened, the KA1 coil loop and the KA2 coil loop lose power; the KM coil loop remains on and the lighting fixture FL is continuously lit.
In the light-off step, any one of the switches is pressed again as in S2:
KA2 coil loop: after the coil of the second intermediate relay KA2 is electrified, the coil is attracted, and the normally open contact of the second intermediate relay KA2 is closed and simultaneously locks the normally open contact of the contactor KM.
KA1 coil loop: the normally open contact of the first intermediate relay KA1, the normally closed contact of the second intermediate relay KA2 and the normally closed contact of the contactor KM are all in an open state, and the coil of the first intermediate relay KA1 is still de-energized.
In the KM coil loop: the normally closed contact of the second intermediate relay KA2 is opened, the coil of the contactor KM is released after power failure, and the normally open contact of the contactor KM is opened.
In the main loop: and a main contact of the contactor KM is opened, and the lighting lamp FL is extinguished after power failure. The switch S2 is released, and the coil loop of KA1, the coil loop of KA2 and the coil loop of KM are all powered off; the control loop returns to the initial state, and the lighting lamp FL is continuously turned off.
As described above, when the switch is pressed again at S3, the lamp FL is turned on, and when the switch S3 is released and the switch S4 is pressed, the lamp FL is turned off, and the control circuit returns to the original state. So as to circulate in sequence.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. A multi-ground control circuit of electric equipment is characterized by comprising a plurality of self-reset switches S1, S2, … … and Sn, a first intermediate relay KA1, a second intermediate relay KA2, a contactor KM and a breaker QF, wherein the respective reset switches are arranged at different places, and the self-reset switches are connected in parallel to form a control device;
in the control circuit of the coil of the first intermediate relay KA 1:
the head end of the control device is connected to a phase line L1, and the tail end of the control device is connected with the head end of a normally closed contact of a second intermediate relay KA 2; the tail end of the normally closed contact of the second intermediate relay KA2 is connected with the head end of the normally open contact of the first intermediate relay KA1 on one hand, and is connected with the head end of the normally closed contact of the contactor KM on the other hand; the tail end of the normally open contact of the first intermediate relay KA1 and the tail end of the normally closed contact of the contactor KM are commonly connected to one end of the coil of the first intermediate relay KA1, and the other end of the coil of the first intermediate relay KA1 is connected to the neutral line N;
in the control circuit of the coil of the second intermediate relay KA 2:
the head end of the control device is connected to a phase line L1, and the tail end of the control device is connected with the head end of a normally closed contact of a first intermediate relay KA 1; the tail end of the normally-closed contact of the first intermediate relay KA1 is connected with the head end of the normally-open contact of the second intermediate relay KA2 on one hand, and is connected with the head end of the normally-open contact of the contactor KM on the other hand; the tail end of the normally open contact of the second intermediate relay KA2 and the tail end of the normally open contact of the contactor KM are commonly connected to one end of the coil of the second intermediate relay KA2, and the other end of the coil of the second intermediate relay KA2 is connected to the neutral line N;
in the control loop of the coil of contactor KM:
the head end of a normally closed contact of the second intermediate relay KA2 is connected to the phase line L1; the tail end of the normally-closed contact of the second intermediate relay KA2 is connected with the head end of the normally-open contact of the first intermediate relay KA1 on one hand, and is connected with the head end of the normally-open contact of the contactor KM on the other hand; the tail end of a normally open contact of the first intermediate relay KA1 and the tail end of a normally open contact of the contactor KM are connected to one end of a coil of the contactor KM together, and the other end of the coil of the contactor KM is connected to a neutral line N;
in the main loop:
phase line L connects the head end of circuit breaker QF, and phase line L1 is connected on the one hand to the tail end of circuit breaker QF, and the head end of the main contact of on the other hand connection contactor KM, the tail end connection lamp group FL's of contactor KM one end, and the other end of lamp group FL is connected to neutral conductor N.
2. The multi-site control circuit for electric equipment according to claim 1, wherein the respective reset switches are disposed at different entrances and exits of a large-scale factory or building.
3. The multi-ground control circuit of an electric device according to claim 1, wherein the electric device is a lighting fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582498.5U CN210202150U (en) | 2019-04-25 | 2019-04-25 | Multi-ground control circuit of electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582498.5U CN210202150U (en) | 2019-04-25 | 2019-04-25 | Multi-ground control circuit of electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210202150U true CN210202150U (en) | 2020-03-27 |
Family
ID=69877163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920582498.5U Active CN210202150U (en) | 2019-04-25 | 2019-04-25 | Multi-ground control circuit of electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210202150U (en) |
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2019
- 2019-04-25 CN CN201920582498.5U patent/CN210202150U/en active Active
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