CN2760853Y - Safe multidigit control electronic switch - Google Patents
Safe multidigit control electronic switch Download PDFInfo
- Publication number
- CN2760853Y CN2760853Y CN 200520000260 CN200520000260U CN2760853Y CN 2760853 Y CN2760853 Y CN 2760853Y CN 200520000260 CN200520000260 CN 200520000260 CN 200520000260 U CN200520000260 U CN 200520000260U CN 2760853 Y CN2760853 Y CN 2760853Y
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- Prior art keywords
- control
- circuit
- load
- electronic switch
- safe
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- Expired - Fee Related
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Abstract
The utility model discloses a safe multi-position control electronic switch, which comprises a load control device, a control circuit, a power supply circuit and an on-off control handle, wherein the load control device is arranged in a high voltage load circuit; the control end of the load control device is connected to the inner side of the control circuit; the control circuit is connected with the power supply circuit; the on-off control handle is connected to the inner side of the control circuit through a connecting wire; the load control device is a relay; the control circuit is a bi-stable logic circuit; the control end of the load control device is connected to the output end of the bi-stable logic circuit; the on-off control handle is connected to the input end of the bi-stable logic circuit, and the input end makes use of the two-pole changes of a resistor as control parameters. A circuit board of the utility model can be directly arranged near an electric appliance, and can carry out control through a leading low voltage conducting wire to increase the safety of power utilization.
Description
Technical field
The utility model relates to a kind of electrical equipment electronic switch, the particularly a kind of multidigit control electronic switch that can control high-voltage load with low-voltage circuit.
Background technology
Since human electricity consumption, only switch has just experienced the evolution of knife switch, pulling switch, key switch and electronic switch.Knife switch directly is connected in the load circuit, and fail safe is not good, does not recommend to use in the normal domestic use appliance switch, is only manipulated by the professional in the heavy load circuit.Pulling switch generally is used for occasion such as home lighting to be used, but pulling switch can only control separately, and the position of backguy, angle are all restricted, and the user of some pulling switch conveniently is provided with many backguys indoor in order to control, and aesthetic property is relatively poor.And key switch also is directly to be connected in the load circuit, also has certain safety problem, and key switch can only be arranged on the wall simultaneously, has used inconvenience.The electronic switch of modern exploitation can do voltage with simple low-voltage control, and fail safe is also better, but the line construction complexity, cost is higher, seldom uses in normal domestic use electrical equipment.
The utility model content
The purpose of this utility model is to provide a kind of safe multidigit simple in structure, processing ease to control electronic switch, and it can realize the security control of normal domestic use electrical equipment, and is with low cost.
Safe multidigit control electronic switch of the present utility model, comprise load controller spare, control circuit, power circuit and switch joystick, load controller spare is installed in the load circuit of high pressure, the control end of this load controller spare then is connected in the control circuit, control circuit is connected with power circuit, and the switch joystick is wired in the control circuit.
Described load controller spare is a relay.
Described control circuit is the bistable logic circuit, and the control end of load controller spare is connected to the output of this bistable logic circuit, and the switch joystick is connected to the input of this bistable logic circuit.
Described power circuit is a transformation commutation supply voltage circuit, is co-located on the circuit board with control circuit, uses the mains supply identical with load.
The input of described control circuit changes as Control Parameter with resistance the two poles of the earth.
Described switch joystick is a button keys, has the break-make two states.
Electronic switch of the present utility model uses the bistable logic circuit as control circuit, input changes the input resistance parameter with the break-make two states, realize extremely easily, thereby on off operating mode that can control relay, resistance parameter is unique, can not be subjected to other Effect of Environmental, reliably higher.With the civil power of the desire control power supply as switch, therefore, circuit board can be set directly near the electrical appliance, only just can control by the primary cable of drawing, and improves Electrical Safety greatly.Product of the present utility model can use at wet environment even in water.
Description of drawings
Fig. 1 is the circuit principle structure schematic diagram of the utility model electronic switch;
Fig. 2 is an electronic switch operation principle block diagram of the present utility model;
Fig. 3 is the electrical block diagram of a kind of embodiment of the present utility model.
Embodiment
As shown in Figure 1, a kind of two-way safety multidigit control electronic switch electrical schematic diagram of the present utility model.Switching Power Supply 2 wherein is connected on the mains supply 1, is used for to two-way electronic switch supply low-tension supply. Single switching circuit 3,4 then can also be arranged on the circuit board identical with power circuit 1.In single switching circuit 3,4, respectively be provided with relay, be used for being connected high-voltage load 5,6.And switch joystick 7 is a button keys, and every way switch is provided with three buttons in the present embodiment, be used to carry out the control of multiple spot multidigit, and switch joystick 7 is connected in the circuit by lead 8.
As shown in Figure 3, described single switching circuit 3,4 is the bistable logic circuit, be connected to the output of this bistable logic circuit as the control end of the relay 9,10 of load controller spare, be connected on the emitter of triode, the action that opens and closes with output control relay 9,10 formulations of logical circuit is to realize the control of high-voltage load.The base stage of while as the input triode of logical circuit then connects the handle 7 that is used to control.This control mode is to realize with the variation of resistance parameter, can avoid the interference of other environmental factor.
The utility model in use, power circuit and control circuit all can be arranged on the position that the ordinary people is difficult for touching, with being connected on the mains supply with electric loading, the control end of relay is connected in the circuit of electrical appliance, the handle lead-out wire is arbitrarily length connection then, thereby the position that is implemented in handle arbitrarily is provided with.
As shown in Figure 2, when work, because the power supply of power circuit makes logical circuit be in a kind of stable state, at this moment relay can be in the closure or openness state.When joystick 7 actions, because the great variety of the resistance parameter of the input of logical circuit can make the logical circuit upset and keep another kind of stable state, this moment, relay then can be in closure or opening, realized the effect of switch.
And after power supply outage in a single day,, then can make the logical circuit outage because control circuit loses power supply, under the situation without any output, relay is in original opening, uses electric loading to disconnect, even reply and send electricity, load can not enter conducting state automatically yet.
Above-mentioned electronic switch of the present utility model, simple in structure, with low cost, install easily, have following advantage:
1, safety, on-off circuit are installed in the position that is difficult for touching, improve Electrical Safety.
2, multidigit control, on-off circuit can arrange many take break-make as the resistance variations parameter Individual button, thereby the purpose of an electrical equipment of realization multi_control.
3, the environment for use requirement is low, owing to using the low pressure lead-out wire and changing with the resistance break-make For control parameter, be not subjected to the impact of other factors, can wet environment even In water, use, also can adapt to leading of multiple different length, different resistivity Line.
Claims (6)
1. a safe multidigit is controlled electronic switch, it is characterized in that: comprise load controller spare, control circuit, power circuit and switch joystick, load controller spare is installed in the load circuit of high pressure, the control end of this load controller spare then is connected in the control circuit, control circuit is connected with power circuit, and the switch joystick is wired in the control circuit.
2. safe multidigit control electronic switch according to claim 1, it is characterized in that: described load controller spare is a relay.
3. safe multidigit control electronic switch according to claim 1, it is characterized in that: described control circuit is the bistable logic circuit, the control end of load controller spare is connected to the output of this bistable logic circuit, and the switch joystick is connected to the input of this bistable logic circuit.
4. safe multidigit control electronic switch according to claim 1, it is characterized in that: described power circuit is a transformation commutation supply voltage circuit, is co-located on the circuit board with control circuit, uses the mains supply identical with load.
5. safe multidigit control electronic switch according to claim 1, it is characterized in that: the input of described control circuit changes as Control Parameter with resistance the two poles of the earth.
6. safe multidigit control electronic switch according to claim 1, it is characterized in that: described switch joystick is a button keys, has the break-make two states.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520000260 CN2760853Y (en) | 2005-01-07 | 2005-01-07 | Safe multidigit control electronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520000260 CN2760853Y (en) | 2005-01-07 | 2005-01-07 | Safe multidigit control electronic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760853Y true CN2760853Y (en) | 2006-02-22 |
Family
ID=36083050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520000260 Expired - Fee Related CN2760853Y (en) | 2005-01-07 | 2005-01-07 | Safe multidigit control electronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760853Y (en) |
-
2005
- 2005-01-07 CN CN 200520000260 patent/CN2760853Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |