CN202872698U - Signal control circuit and valve performer - Google Patents
Signal control circuit and valve performer Download PDFInfo
- Publication number
- CN202872698U CN202872698U CN 201220533145 CN201220533145U CN202872698U CN 202872698 U CN202872698 U CN 202872698U CN 201220533145 CN201220533145 CN 201220533145 CN 201220533145 U CN201220533145 U CN 201220533145U CN 202872698 U CN202872698 U CN 202872698U
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- Prior art keywords
- control circuit
- signal
- triode
- motor
- signal input
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Abstract
The utility model relates to a signal control circuit and a valve performer. The signal control circuit comprises a signal input terminal, a motor forward-rotation control circuit, a triode, a capacitance, a capacitance charging circuit and a capacitance discharging circuit, wherein a first terminal of the motor forward-rotation control circuit is connected with the signal input terminal, a second terminal of the motor forward rotation control circuit is connected with a first current input terminal of a motor control chip, B pole of the triode is connected with the signal input terminal, E pole of the triode is connected with a high potential terminal of the capacitance, C pole of the triode is connected with the signal input terminal of the motor control chip, the capacitance is grounded, the capacitance charging circuit is connected with the signal input terminal, and the high potential terminal of the capacitance is connected with a second current input terminal of the motor control chip to form the capacitance discharging circuit. According to the utility model, the signal control circuit controls forward and reverse rotation of the motor, and thus is relatively strong in generality and suitable for various types of valves.
Description
Technical field
The utility model relates to the electroporation field, particularly relates to a kind of signal control circuit and valve actuator.
Background technology
In central air conditioner system, valve actuator adopts the switching mode control method to drive the switching of valve more, comprises the electric pass type of establishing by cable (i.e. the controller of three lines access) and power on/off switching mode (i.e. the controller of two lines access) at present.In outage, the switching mode actuator often adopts spring reset or stand-by power supply to reset and realizes the outage auto-reset function.
Wherein, because the needed energy that automatically resets of valve actuator is less, therefore the spring resets that adopt realize that outage automatically resets more.But the spring reset complex structure is high to structure precision and installation requirement.And spring is as critical component, the expensive height of performance requirement, and need select the spring of different size for the actuator of different active forces or moment, versatility is relatively poor.
Adopt stand-by power supply to automatically reset through inversion, generally with storage battery or storage battery as stand-by power supply.It must adopt the DC/AC inverter circuit, and circuit is complicated, and cost is high, and storage battery, storage battery do not belong to eco-friendly power source, and volume is large, and be relatively heavier, also need special charging circuit and controlled discharge circuit, overcharge, cross and put more and can cause harmful effect to its life-span, maintenance cost is higher.
In addition, for fan valve executor and heating valve, because indoor environment has requirement to the minimum value of resh air requirement, and in heating system, if fully it is closed, ducted water can freeze and cause the problem of pipeline burst.Therefore valve can not complete shut-down, but will keep certain aperture, for reaching these requirements, generally can add mechanical braking in controller, so not only makes structure more complicated, has also increased cost.
Therefore, how providing a kind of automatically reset valve actuator of outage with good versatility and lower cost, is those skilled in the art's technical issues that need to address.
Summary of the invention
Based on this, the utility model is necessary to provide a kind of signal control circuit and valve actuator, and this signal control circuit can be controlled motor automatically resets the valve outage, can be common to multiple valve, and cost is low.
The purpose of this utility model is achieved in that
A kind of signal control circuit, it is connected with motor control chip, described signal control circuit includes signal input part, motor forward control circuit, triode, electric capacity, capacitor charging circuit and capacitor discharging circuit, the first end of described motor forward control circuit is connected with described signal input part, the second end is connected with the first current input terminal of described motor control chip, the B utmost point of described triode is connected with described signal input part, the E utmost point of described triode is connected with the hot end of described electric capacity, the C utmost point of described triode is connected with the signal input part of described motor control chip, described capacity earth, described capacitor charging circuit is connected with described signal input part, and the second current input terminal of the hot end of described electric capacity and described motor control chip is connected to form capacitor discharging circuit.
After described motor forward control circuit is received the positive rotaring signal of motor that sends from described signal input part, described motor forward control circuit control motor forward, by-pass valve control is opened; And when electric current passed through described triode, the current potential of the B utmost point of described triode was higher than the E utmost point, and triode is closed, and directly passed through described capacitor charging circuit to capacitor charging.After outage, described motor forward control circuit does not receive the positive rotaring signal of motor that sends from described signal end, not conducting of triode; At this moment, described capacitor discharging circuit discharge, the current potential of the triode B utmost point is higher than the E utmost point, the triode conducting, electric current is by making the counter-rotating of motor control chip drive motors.
Among embodiment, described motor forward control circuit includes regularly and crosses flow module therein.Set according to valve or air door journey time, when valve reaches desired location, can stop the motor power supply, make motor can not generate heat life-saving by stall.
Therein among embodiment, described capacitor charging circuit includes the first diode and the first resistance, described the first diode is connected with described electric capacity with described the first resistance series connection is rear, and the E utmost point of described triode is connected between described the first diode and described the first resistance.
Among embodiment, the resistance value of described the first resistance is 10 ohm therein.
Therein among embodiment, described signal control circuit also includes the second resistance and the second diode, the B utmost point of described triode is connected with described signal input part by described the second resistance, and described the second diode is connected between the signal input part of the C utmost point of described triode and described motor control chip.
Among embodiment, described signal input part includes signal terminal and the AC/DC power transfer module that is connected in series therein.
The invention also discloses a kind of valve actuator, it includes such as the described signal control circuit of above any one, motor and motor control chip, and described signal control circuit is connected with described motor control chip.By described signal control circuit control motor forward or reverse, thus the switch of by-pass valve control.
The utility model compared with prior art has following beneficial effect:
The utility model signal control circuit has replaced the mode by-pass valve control that existing switching mode actuator utilizes spring mechanical to reset or stand-by power supply resets and has closed, and utilize signal control circuit to control forward, the counter-rotating of motor, has stronger versatility, can be applicable to polytype valve, and can select according to the actual requirements the amount of capacity of electric capacity or revise the valve that timing realizes that air-valve and heating valve etc. need not the contract fully types.
Description of drawings
Fig. 1 is the circuit diagram of the utility model signal control circuit;
Fig. 2 is the workflow diagram of the utility model signal control circuit.
Embodiment
A kind of valve actuator of the utility model, it includes reduction gear box, output mechanism and circuit board, described output mechanism and described reduction gear box and described circuit board control connection, described circuit board includes described signal control circuit, by the action of the described export structure of described circuit board and described reduction gear box.By described signal control circuit control motor forward or reverse, thus the switch of by-pass valve control.
As shown in Figure 1, described signal control circuit, it includes signal input part 11, motor control chip 12, direct current machine 13, motor forward control circuit, triode Q, capacitor C, capacitor charging circuit and capacitor discharging circuit.The first end of described motor forward control circuit is connected with described signal input part 11, the second end is connected with the first current input terminal of described motor control chip 12, the B utmost point of described triode Q is connected with described signal input part 11, the E utmost point of described triode Q is connected with the hot end of described electric capacity, the C utmost point of described triode Q is connected with the signal input part of described motor control chip 12, described capacitor C ground connection, described capacitor charging circuit is connected with described signal input part 12, and the second current input terminal of the hot end of described capacitor C and described motor control chip is connected to form capacitor discharging circuit.
Among embodiment, described motor forward control circuit includes regularly and crosses flow module 14 therein.Set according to valve or air door journey time, when valve reaches desired location, can stop the power supply of direct current machine 13, make motor 13 can not generate heat life-saving by stall.
Among embodiment, described capacitor charging circuit includes the first diode D therein
1And the first resistance R
1, described the first diode D
1With described the first resistance R
1Be connected in series with described capacitor C after the series connection, the E utmost point of described triode Q is connected in series in described the first diode D
1With described the first resistance R
1Between.Wherein, described the first resistance R
1Resistance value be 10 ohm.
Among embodiment, described signal control circuit also includes the second resistance R therein
1With the second diode D
2, the B utmost point of described triode Q is by described the second resistance R
1Be connected described the second diode D with described signal input part 11
2Be connected between the signal input part of the C utmost point of described triode Q and described motor control chip 12.
Among embodiment, described signal input part 11 includes signal terminal 220VAC and the AC/DC power transfer module that is connected in series therein.
The electric motor actuator of capable of controlling rotation direction is applied on the normal closed gate, uses power on/off switching mode actuator, valve is in the state of closing fully before work.Referring to Figure 1 and Figure 2, be the flow chart of motor forward shown in the solid line, the flow chart when being motor reversal shown in the dotted line simultaneously.Electric motor actuator output electrical signals 220VAC or 24VAC are to the binding post CON2 of electric motor actuator, and by the AC/DC power transfer module, the AC signal that controller is exported is converted to 5VDC.Wherein a branch road direct current signal passes through regularly and crosses flow module 14, and output R controls motor control chip 12, makes motor control chip 12 drive motors 13 forwards, and the output mechanism by-pass valve control of actuator is opened; Another branch road direct current signal is through the first diode D
1The time, make the current potential of the B utmost point of triode Q be higher than the E utmost point of triode Q, triode Q closes; Also has a branch road direct current signal by the firstth resistance R
1Capacitor C is charged.
Electric motor actuator stops after the output electrical signals, capacitor C discharge, the first diode D
1The isolation signal of telecommunication makes the B electrode potential of triode Q be higher than the E utmost point, triode Q conducting, and output L makes 13 counter-rotatings of motor control chip 12 drive motors, and the output mechanism by-pass valve control of actuator is closed.
The above embodiment has only expressed several execution modes of this utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to written or printed documents utility model patent scope.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. signal control circuit, it is connected with motor control chip, it is characterized in that, described signal control circuit includes signal input part, motor forward control circuit, triode, electric capacity, capacitor charging circuit and capacitor discharging circuit, the first end of described motor forward control circuit is connected with described signal input part, the second end is connected with the first current input terminal of described motor control chip, the B utmost point of described triode is connected with described signal input part, the E utmost point of described triode is connected with the hot end of described electric capacity, the C utmost point of described triode is connected with the signal input part of described motor control chip, described capacity earth, described capacitor charging circuit is connected with described signal input part, and the second current input terminal of the hot end of described electric capacity and described motor control chip is connected to form capacitor discharging circuit.
2. signal control circuit according to claim 1 is characterized in that, described motor forward control circuit includes regularly and cross flow module.
3. signal control circuit according to claim 1, it is characterized in that, described capacitor charging circuit includes the first diode and the first resistance, described the first diode is connected with described electric capacity with described the first resistance series connection is rear, and the E utmost point of described triode is connected between described the first diode and described the first resistance.
4. signal control circuit according to claim 3 is characterized in that, the resistance value of described the first resistance is 10 ohm.
5. signal control circuit according to claim 3, it is characterized in that, it also includes the second resistance and the second diode, the B utmost point of described triode is connected with described signal input part by described the second resistance, and described the second diode is connected between the signal input part of the C utmost point of described triode and described motor control chip.
6. signal control circuit according to claim 1 is characterized in that, described signal input part includes signal terminal and the AC/DC power transfer module that is connected in series.
7. a valve actuator is characterized in that, it includes such as the described signal control circuit of claim 1 to 6 any one, motor and motor control chip, and described signal control circuit is connected with described motor control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533145 CN202872698U (en) | 2012-10-18 | 2012-10-18 | Signal control circuit and valve performer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533145 CN202872698U (en) | 2012-10-18 | 2012-10-18 | Signal control circuit and valve performer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872698U true CN202872698U (en) | 2013-04-10 |
Family
ID=48039383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220533145 Expired - Lifetime CN202872698U (en) | 2012-10-18 | 2012-10-18 | Signal control circuit and valve performer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633238A (en) * | 2015-03-01 | 2015-05-20 | 宁波市镇海华泰电器厂 | Electricity-saving alternating-current electromagnetic valve with triode-type switch pulse generating circuit |
-
2012
- 2012-10-18 CN CN 201220533145 patent/CN202872698U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633238A (en) * | 2015-03-01 | 2015-05-20 | 宁波市镇海华泰电器厂 | Electricity-saving alternating-current electromagnetic valve with triode-type switch pulse generating circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |