CN207778716U - Digital interface peripheral hardware and its circuit and air-conditioner control system - Google Patents
Digital interface peripheral hardware and its circuit and air-conditioner control system Download PDFInfo
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- CN207778716U CN207778716U CN201721554350.8U CN201721554350U CN207778716U CN 207778716 U CN207778716 U CN 207778716U CN 201721554350 U CN201721554350 U CN 201721554350U CN 207778716 U CN207778716 U CN 207778716U
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Abstract
The utility model discloses a kind of digital interface peripheral hardwares and its circuit and air-conditioner control system, wherein circuit to include：Digital input circuit and digital quantity output circuit, wherein digital input circuit includes：Digital quantity signal input pin, for receiving digital quantity signal；Level signal output pin is used for outputs level signals；First signal transmission controller part, the level for controlling level signal；Digital quantity output circuit includes：Signal input pin is controlled, for receiving control signal；Digital output pin, for exporting digital quantity signal；Second signal transmission control unit (TCU) part, the output for controlling digital quantity signal.The utility model is not necessarily to carrying out respective design and adjustment control circuit for different demands for control, so that hardware development efficiency greatly promotes.
Description
Technical field
The utility model is related to interfacing fields, and in particular to a kind of digital interface peripheral hardware and its circuit and air-conditioning control
System processed.
Background technology
In the control system of air-conditioning, it is often necessary to carry out digital output operation and digital quantity input detection operation, use
It is acted accordingly so that control signal is powered or provided to external module and timely responds to external feedback signal.
It is powered currently, mostly using the power supply that voltage is 24V in the control system of technical grade, in this case, control
The voltage signal that 24V is usually used between molding block and controlled module, as the control signal and feedback signal between module.Example
Such as, when the controlled module that control module needs control external at present is operated accordingly, by one 24V of control module generation
Voltage signal is to controlled module；Or when controlled module completes corresponding operating, a 24V voltages letter is generated by controlled module
Number control module is fed back to, thus establishes the request between control module and controlled module and acknowledgement mechanism.However, for
For air-conditioning, at present due to needing to carry out respective design and adjustment for different demands for control in the exploitation of new unit,
There is presently no that can realize that digital quantity outputs and inputs function control system, lead to not realize the general of control circuit exploitation
Change, it can only be to the different corresponding control circuits of unit design so that hardware development efficiency is very low.
Utility model content
The generalization that the utility model will solve to cannot achieve ac control circuit exploitation in the prior art makes hardware open
The low technical problem of efficiency is sent out, to provide a kind of digital interface peripheral hardware and its circuit and air-conditioner control system.
The one side of the utility model embodiment provides a kind of digital interface circuit, including：Digital input circuit
And digital quantity output circuit, wherein the digital input circuit includes：Digital quantity signal input pin, for receiving number
Measure signal；Level signal output pin is used for outputs level signals；First signal transmission controller part is believed with the digital quantity
Number input pin and the level signal output pin are separately connected, the level for controlling the level signal；The number
Measuring output circuit includes：Signal input pin is controlled, for receiving control signal；Digital output pin, for exporting number
Measure signal；Second signal transmission control unit (TCU) part connects respectively with the control signal input pin and the digital output pin
It connects, the output for controlling the digital quantity signal.
Optionally, the first signal transmission controller part is optocoupler or electromagnetic relay.
Optionally, the second signal transmission control unit (TCU) part is optocoupler or electromagnetic relay.
Optionally, the digital input circuit further includes：First capacitance, one end are drawn with digital quantity signal input
Foot connects, and the other end is connect with the first signal transmission controller part；First resistor, the institute of one end and first capacitance
State other end connection, other end ground connection.
Optionally, the digital input circuit further includes：Second resistance, one end and the level signal output pin
Connection, the other end are connect with the first power level.
Optionally, the digital quantity output circuit further includes：3rd resistor, be connected to the control signal input pin and
Between the second signal transmission control unit (TCU) part；Second capacitance, one end are connect with the 3rd resistor, the other end and second electrical level
Power supply connects.
Optionally, the digital quantity output circuit further includes：Diode, plus earth, cathode and the digital quantity are defeated
Go out pin connection.
Optionally, further include output port, the digital output pin is connect with the output port, the digital quantity
Signal input pin is connect by electromagnetic relay with the output port.
The another aspect of the utility model embodiment provides a kind of digital interface peripheral hardware, including：The digital quantity
Interface circuit.
The another aspect of the utility model embodiment provides a kind of air-conditioner control system, including：The digital quantity connects
Mouth peripheral hardware.
According to the utility model embodiment, digital quantity is realized by the way that digital input circuit and digital quantity output circuit is arranged
Signal is output and input so that the digital interface circuit can be common in various ac control circuits, without pair
Respective design and adjustment control circuit are carried out for different demands for control, so that hardware development efficiency greatly promotes.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic diagram of digital interface circuit in the utility model embodiment；
Fig. 2 is a kind of schematic diagram of digital input circuit in the utility model embodiment；
Fig. 3 is a kind of schematic diagram of digital quantity output circuit in the utility model embodiment；
Fig. 4 is the schematic diagram of another digital interface circuit in the utility model embodiment.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are only used for describing
Purpose is not understood to indicate or imply relative importance.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
The utility model embodiment provides a kind of digital interface circuit, as shown in Figure 1, the circuit includes：Digital quantity
Input circuit 10 and digital quantity output circuit 20.
Digital input circuit 10 includes：Digital quantity signal input pin 11, for receiving digital quantity signal；Level signal
Output pin 12 is used for outputs level signals；First signal transmission controller part 13, with digital quantity signal input pin 11 and electricity
Flat signal output pin 12 is separately connected, the level for controlling level signal.Specifically, the first signal transmission controller part 13
Whether can be inputted according to digital quantity signal to control the level of level signal
Digital quantity output circuit 20 includes：Signal input pin 21 is controlled, for receiving control signal；Digital output draws
Foot 22, for exporting digital quantity signal；Second signal transmission control unit (TCU) part 23, it is defeated with control signal input pin 21 and digital quantity
Go out pin 22 to be separately connected, the output for controlling digital quantity signal.Specifically, second signal transmission control unit (TCU) part 23 can root
Control whether digital quantity signal exports according to the input of control signal.
According to the utility model embodiment, digital quantity is realized by the way that digital input circuit and digital quantity output circuit is arranged
Signal is output and input so that the digital interface circuit can be common in various ac control circuits, without pair
Respective design and adjustment control circuit are carried out for different demands for control, so that hardware development efficiency greatly promotes.
As an alternative embodiment, above-mentioned first signal transmission controller 13 is optocoupler or electromagnetism relay
Device.On the other hand, second signal transmission control unit (TCU) part 23 is optocoupler or electromagnetic relay.
Further, by taking the first signal transmission controller is optocoupler as an example, as shown in Fig. 2, digital input circuit also wraps
It includes：First capacitance C2, one end are connect with digital quantity signal input pin 11, the other end and the first signal transmission controller part
It is the connection of pin 2 of optocoupler 131；First resistor R2, one end are connect with the other end of the first capacitance C2, other end ground connection.
Digital quantity signal input pin 11 is connect with the pin 1 of optocoupler 131, and the pin 3 of optocoupler 131 is grounded.Further, digital quantity is defeated
Entering circuit further includes：Second resistance R3, one end are connect with level signal output pin 12, the other end and the first power level
Vcc connections.
The operation principle of above-mentioned digital input circuit is as follows：When being inputted without digital quantity signal for its pin 1 of optocoupler 131
When, optocoupler 131 is closed, and output signal level is close to VCC；When the pin 1 of optocoupler 131 has digital quantity signal input
When, optocoupler 131 is in the conduction state, and output signal level is close to 0V, the electricity of 4 output signal of pin by judging optocoupler 131
It is flat, so that it may which that detect digital quantity Peripheral Interface, whether there is or not digital quantity signal inputs.
On the other hand, also by taking optocoupler as an example, digital quantity output circuit further includes second signal transmission control unit (TCU) 23：Third electricity
R1 is hindered, is connected between control signal input pin and second signal transmission control unit (TCU) part, that is to say control signal input pin
It is connected with the pin 2 of optocoupler 231；Second capacitance C1, one end are connect with 3rd resistor R1, the other end and second electrical level power Vcc
Connection.First power level and second electrical level power supply can be identical power supply, and voltage can be 24V, can also replace with
The voltages such as 18V, 15V, 12V.The pin 1 of optocoupler 231 is also connect with second electrical level power supply.
Further, digital quantity output circuit further includes：Diode D1, plus earth, cathode draw with digital output
Foot connects, and is also connect with the pin of optocoupler 231 3.The pin 4 of optocoupler 231 is also associated with power level, and voltage signal can be
24V can also replace with 18V, 15V, 12V etc..
The operation principle of above-mentioned digital quantity output circuit is：When control signal K1 is invalid, optocoupler 231, which is in, closes shape
State, there is no signal outputs for digital output pin；When control signal K1 is effective, optocoupler 231 is in the conduction state, digital quantity
Output pin has digital output.
As an alternative embodiment, the digital interface circuit of the utility model embodiment further includes output end
Mouthful, digital output pin is connect with output port, and digital quantity signal input pin is connected by electromagnetic relay and output port
It connects.
Specifically, as shown in figure 4, increasing an electromagnetic relay in digital input circuit front end.When needing to export
It when digital quantity signal, is controlled by program, keeps control signal K1 effective, control signal K2 is invalid, to make digital output electric
Road normally exports, and cuts off digital input circuit；When needing to input digital quantity signal, is controlled by program, make control
Signal K1 is invalid, and control signal K2 is effective, closes digital quantity output circuit, gated digital amount input circuit.Pass through to realize
Using the digital interface circuit of the utility model embodiment, by control accordingly can complete digital output function and
The purpose of digital quantity input function.
The utility model embodiment additionally provides a kind of digital interface peripheral hardware comprising the utility model embodiment
Digital interface circuit.The digital interface peripheral hardware that the utility model embodiment is provided can be applied to various airconditioning control systems
System realizes the transmission of the digital quantity signal in air-conditioner control system between each control module and controlled module.
The utility model embodiment additionally provides a kind of air-conditioner control system, which includes：The utility model embodiment
Digital interface peripheral hardware.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Among changing still in the protection domain of the application.
Claims (10)
1. a kind of digital interface circuit, which is characterized in that including：Digital input circuit and digital quantity output circuit, wherein
The digital input circuit includes：Digital quantity signal input pin, for receiving digital quantity signal；Level signal exports
Pin is used for outputs level signals；First signal transmission controller part, with the digital quantity signal input pin and the level
Signal output pin is separately connected, the level for controlling the level signal；
The digital quantity output circuit includes：Signal input pin is controlled, for receiving control signal；Digital output pin,
For exporting digital quantity signal；Second signal transmission control unit (TCU) part, it is defeated with the control signal input pin and the digital quantity
Go out pin to be separately connected, the output for controlling the digital quantity signal.
2. digital interface circuit according to claim 1, which is characterized in that the first signal transmission controller part is
Optocoupler or electromagnetic relay.
3. digital interface circuit according to claim 1, which is characterized in that the second signal transmission control unit (TCU) part is
Optocoupler or electromagnetic relay.
4. digital interface circuit according to claim 1, which is characterized in that the digital input circuit further includes：
First capacitance, one end are connect with the digital quantity signal input pin, and the other end is controlled with first signal transmission
Device connects；
First resistor, one end are connect with the other end of first capacitance, other end ground connection.
5. digital interface circuit according to claim 1, which is characterized in that the digital input circuit further includes：
Second resistance, one end are connect with the level signal output pin, and the other end is connect with the first power level.
6. digital interface circuit according to claim 1, which is characterized in that the digital quantity output circuit further includes：
3rd resistor is connected between the control signal input pin and the second signal transmission control unit (TCU) part；
Second capacitance, one end are connect with the 3rd resistor, and the other end is connect with second electrical level power supply.
7. digital interface circuit according to claim 1, which is characterized in that the digital quantity output circuit further includes：
Diode, plus earth, cathode are connect with the digital output pin.
8. digital interface circuit according to claim 1, which is characterized in that further include output port, the digital quantity
Output pin is connect with the output port, and the digital quantity signal input pin passes through electromagnetic relay and the output port
Connection.
9. a kind of digital interface peripheral hardware, which is characterized in that including：Claim 1 to 8 any one of them digital interface electricity
Road.
10. a kind of air-conditioner control system, which is characterized in that including：Digital interface peripheral hardware described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721554350.8U CN207778716U (en) | 2017-11-20 | 2017-11-20 | Digital interface peripheral hardware and its circuit and air-conditioner control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721554350.8U CN207778716U (en) | 2017-11-20 | 2017-11-20 | Digital interface peripheral hardware and its circuit and air-conditioner control system |
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| Publication Number | Publication Date |
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| CN207778716U true CN207778716U (en) | 2018-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702299A (en) * | 2017-11-20 | 2018-02-16 | 珠海格力电器股份有限公司 | Digital quantity interface peripherals and its circuit and air-conditioner control system |
-
2017
- 2017-11-20 CN CN201721554350.8U patent/CN207778716U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702299A (en) * | 2017-11-20 | 2018-02-16 | 珠海格力电器股份有限公司 | Digital quantity interface peripherals and its circuit and air-conditioner control system |
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