CN202906866U - Electronic switch circuit of air valve actuator - Google Patents
Electronic switch circuit of air valve actuator Download PDFInfo
- Publication number
- CN202906866U CN202906866U CN 201220501377 CN201220501377U CN202906866U CN 202906866 U CN202906866 U CN 202906866U CN 201220501377 CN201220501377 CN 201220501377 CN 201220501377 U CN201220501377 U CN 201220501377U CN 202906866 U CN202906866 U CN 202906866U
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- Prior art keywords
- relay
- triode
- electrically connected
- resistance
- diode
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- Expired - Fee Related
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Abstract
The utility model relates to an electronic switch circuit of an air valve actuator. The electronic switch circuit of the air valve actuator is characterized in that the electronic switch circuit of the air valve actuator comprises first and second triodes, a relay, a capacitor, a first diode and first, second, third and fourth resistors. One end of the first resistor is electrically connected with one end of the fourth resistor, the input end of the relay and the +10V positive pole input end of a fan respectively. The other end of the first resistor is electrically connected with the anode of the first diode and the FG input end of the fan respectively. After second and third resistors are connected in series, one end is electrically connected with the cathode of the first diode, one end of the capacitor and the base of the second triode respectively, and the other end is electrically connected with the other end of the capacitor and the emitter of the first triode respectively. The series connection point is electrically connected with the emitter of the second triode and the base of the first triode respectively. The collector of the second triode is electrically connected with the input end of the relay through the fourth resistor. The collector of the first triode is electrically connected with the output end of the relay. The normally closed contact of the relay is connected with the output end of a closed winding 220V live wire of an air valve. The normally open contact of the relay is connected with the output end of an open winding 220V live wire of the air valve. The moving point of the relay is connected with the 220V alternating current input end of the air valve. According to the utility model, a 48V switch power supply is saved; the circuit is simplified; and the cost is saved.
Description
Technical field
The utility model relates to a kind of electronic switching circuit of fan valve executor.
Background technology
At present, in some medical ventilating systems, the air outlet of supply air system has an air-valve and controls the pass of air outlet and close; When the running of blower fan and the switch of air-valve require to carry out synchronously, also need the blower fan running of the control air draft of external smog warning system and temperature sensor or supply air system; When the air-supply air quantity that requires each room is different, all to adjust wind speed by the variations in temperature in each room, this just requires the air-valve in each room independently to control.Present employed variable air rate module need adopt the 48V Switching Power Supply to provide the prime time switch of operating voltage and cigarette sensitive controller inside to come the break-make relay, its appliance wiring figure as shown in Figure 2, its wiring is complicated, volume is larger, cost is also relatively high; In addition, also need a relatively large space to put the Switching Power Supply can of 48V.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provide a kind of and can simplify circuit, save the space and save cost, can satisfy user's the electronic switching circuit that requires fan valve executor.
In order to achieve the above object, the utility model is to realize like this, it is a kind of electronic switching circuit of fan valve executor, it is characterized in that comprising the first triode, the second triode, relay, electric capacity, the first diode and the first resistance to the four resistance, one end of described the first resistance is electrically connected with an end of the 4th resistance, input and the blower fan+10V electrode input end of relay respectively, and the other end of the first resistance is electrically connected with anode and the blower fan FG input of the first diode respectively; Described the second resistance is with after the 3rd resistance is connected, the one end is electrically connected with the negative electrode of the first diode, an end of electric capacity and the base stage of the second triode respectively, another termination is electrically connected with the other end of electric capacity and the emitter of the first triode respectively, and the second resistance is electrically connected with the emitter of the second triode and the base stage of the first triode respectively with the series connection point of the 3rd resistance; The collector electrode of the second triode is electrically connected with the input of relay by the 4th resistance, and the collector electrode of the first triode is electrically connected with the output of relay; The normally-closed contact of the relay valve of giving a dinner for a visitor from afar cuts out winding 220V live wire output, and the normally opened contact of the relay valve of giving a dinner for a visitor from afar is opened winding 220V live wire output, the moving point of the relay valve 220V ac input end of giving a dinner for a visitor from afar.
At the two ends of described relay and be connected to the second diode that shields, the negative electrode of described the second diode is succeeded the input of electrical equipment, and the anode of the second diode is succeeded the output of electrical equipment.
The utility model advantage compared with prior art is as follows:
1, saved a 48V Switching Power Supply, simplified circuit, provided cost savings;
2, box larger than matchbox of its need just can be finished the function that blower fan running air-valve leaves, blower fan stall air-valve closes, and has realized the function by the air-blower control air-valve, and the control box volume is little to be satisfied customer requirements and saved again usage space;
3, its not only economy but also practicality, components and parts all adopt common transistor and the elements such as Chip-R, electric capacity, because producing without high pressure and high temperature, this control board circuit on whole system without affecting useful life.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is the appliance wiring figure of prior art;
Fig. 3 is appliance wiring figure of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is done further detailed description:
Shown in Fig. 1,3, it is a kind of electronic switching circuit of fan valve executor, the utility model characteristics are to comprise the first triode Q1, the second triode Q2, relay J, capacitor C, the first diode D1 and the first resistance R 1 to the 4th resistance R 4, one end of described the first resistance R 1 is electrically connected with an end of the 4th resistance R 4, input and the blower fan+10V electrode input end of relay J respectively, and the other end of the first resistance R 1 is electrically connected with anode and the blower fan FG input of the first diode D1 respectively; Described the second resistance R 2 is with after the 3rd resistance R 3 is connected, the one end is electrically connected with the negative electrode of the first diode D1, an end of capacitor C and the base stage of the second triode Q2 respectively, another termination is electrically connected with the other end of capacitor C and the emitter of the first triode Q1 respectively, and the second resistance R 2 is electrically connected with the emitter of the second triode Q2 and the base stage of the first triode Q1 respectively with the series connection point of the 3rd resistance R 3; The collector electrode of the second triode Q2 is electrically connected with the input of relay J by the 4th resistance R 4, and the collector electrode of the first triode Q1 is electrically connected with the output of relay J; The normally-closed contact J1-1 of the relay J valve of giving a dinner for a visitor from afar cuts out winding 220V live wire output, and the normally opened contact J1-2 of the relay J valve of giving a dinner for a visitor from afar is opened winding 220V live wire output, the moving point of the relay J valve 220V ac input end of giving a dinner for a visitor from afar.
In the present embodiment, at the two ends of described relay J and be connected to the second diode D2 that shields, the negative electrode of described the second diode D2 is succeeded the input of electrical equipment J, and the anode of the second diode D2 is succeeded the output of electrical equipment J.
During work, in the situation that blower fan FG runs well, amplitude of blower fan FG output is the square wave about 2.6V, through the first diode D1 rectification, charge to capacitor C, when capacitor C to voltage can conducting the second triode Q2 the time, the collector and emitter conducting of the second triode Q2, from the electric current of blower fan+10V electrode input end by after the 4th resistance R 4 current limlitings to the base stage of the first triode Q1, the first triode Q1 conducting, relay J often to open normally opened contact J1-2 closed, the moving point of relay J is connected air-valve and is opened winding 220V live wire output L1, and air-valve is opened; When blower fan FG stall, blower fan FG is output as low level, and the second triode Q2 does not work, the first also not conducting of triode Q1, relay J coil no current stops action, normally-closed contact J1-1 is closed, and the moving point of relay J is connected air-valve and closed winding 220V live wire output L2, and air-valve cuts out.
Claims (2)
1. the electronic switching circuit of a fan valve executor, it is characterized in that comprising that the first triode (Q1), the second triode (Q2), relay (J), electric capacity (C), the first diode (D1) and the first resistance (R1) are to the 4th resistance (R4), one end of described the first resistance (R1) is electrically connected with an end of the 4th resistance (R4), input and the blower fan+10V electrode input end of relay (J) respectively, and the other end of the first resistance (R1) is electrically connected with anode and the blower fan FG input of the first diode (D1) respectively; Described the second resistance (R2) is with after the 3rd resistance (R3) is connected, the one end is electrically connected with the negative electrode of the first diode (D1), an end of electric capacity (C) and the base stage of the second triode (Q2) respectively, the other end is electrically connected with the other end of electric capacity (C) and the emitter of the first triode (Q1) respectively, and the second resistance (R2) is electrically connected with the emitter of the second triode (Q2) and the base stage of the first triode (Q1) respectively with the series connection point of the 3rd resistance (R3); The collector electrode of the second triode (Q2) is electrically connected with the input of relay (J) by the 4th resistance (R4), and the collector electrode of the first triode (Q1) is electrically connected with the output of relay (J); The normally-closed contact (J1-1) of relay (J) valve of giving a dinner for a visitor from afar cuts out winding 220V live wire output, and the normally opened contact (J1-2) of relay (J) valve of giving a dinner for a visitor from afar is opened winding 220V live wire output, the moving point of relay (J) the valve 220V ac input end of giving a dinner for a visitor from afar.
2. the electronic switching circuit of fan valve executor according to claim 1; it is characterized in that at the two ends of described relay (J) and be connected to the second diode (D2) that shields; the negative electrode of described the second diode (D2) is succeeded the input of electrical equipment (J), and the anode of the second diode (D2) is succeeded the output of electrical equipment (J).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220501377 CN202906866U (en) | 2012-09-28 | 2012-09-28 | Electronic switch circuit of air valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220501377 CN202906866U (en) | 2012-09-28 | 2012-09-28 | Electronic switch circuit of air valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906866U true CN202906866U (en) | 2013-04-24 |
Family
ID=48127484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220501377 Expired - Fee Related CN202906866U (en) | 2012-09-28 | 2012-09-28 | Electronic switch circuit of air valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906866U (en) |
-
2012
- 2012-09-28 CN CN 201220501377 patent/CN202906866U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20160928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |