CN109812944A - A kind of ventilation and air conditioning system air-valve control circuit board - Google Patents
A kind of ventilation and air conditioning system air-valve control circuit board Download PDFInfo
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- CN109812944A CN109812944A CN201910214906.6A CN201910214906A CN109812944A CN 109812944 A CN109812944 A CN 109812944A CN 201910214906 A CN201910214906 A CN 201910214906A CN 109812944 A CN109812944 A CN 109812944A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 15
- 238000009423 ventilation Methods 0.000 title claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims description 39
- 230000005611 electricity Effects 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The invention discloses a kind of ventilation and air conditioning system air-valve control circuit boards of electrical control equipment technical field, including PIC controller, analog quantity circuit all the way, two road circuit of analog quantity, on-off model isolation circuit, reset self-checking circuit, signal isolation circuit, passive switch amount output circuit, active switch amount output circuit and driving output circuit, the PIC controller respectively with analog quantity circuit all the way, two road circuit of analog quantity, on-off model isolation circuit, self-checking circuit is resetted to connect with signal isolation circuit signal, the signal isolation circuit respectively with passive switch amount output circuit, active switch amount output circuit is connected with driving output circuit signal, this programme carries out function improvement on the basis of original function, increase display fault code, the new functions such as self-protection, to accelerate the maintenance speed of maintenance personal , maintenance man-hours are saved, further save cost to reach, there is extensive market applying value.
Description
Technical field
The present invention relates to electrical control equipment technical field, specially a kind of ventilation and air conditioning system air-valve control circuit board.
Background technique
Air-valve is indispensable accessory in ventilation, air conditioning and air purification engineering, is commonly used in air-conditioning, ventage
In road under the overall leadership, for adjusting the air quantity of branch pipe, it can also be used to which the mixing of fresh air and return air is adjusted, and existing air-valve control circuit board has
Following defect: air-valve control circuit board when encounter air-valve resistance it is excessive, it is stuck when, it may appear that electric current is excessive, leads to electricity
Road board component is burnt out, and circuit board itself is without self-protection function；Air-valve control circuit board is by receiving the feedback of potentiometer
After order, the size of Lai Zhihang valve area, when potentiometer breaks down, circuit board, which cannot detect, to be out of order, and leads to air-valve
Actuator will appear malfunction, to damage circuit board and actuator；Air-valve control circuit board is unable to self diagnosis failure cause,
Difficulty is brought to maintenance；Air-valve control circuit board is common connecting terminal block, and installation and repairing is time-consuming and laborious, is based on this, the present invention
A kind of ventilation and air conditioning system air-valve control circuit board is devised, to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of ventilation and air conditioning system air-valve control circuit boards, to solve above-mentioned background technique
The problem of many defects existing for the existing air-valve control circuit board of middle proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of ventilation and air conditioning system air-valve control circuit board,
Including PIC controller, analog quantity all the way circuit, two road circuit of analog quantity, on-off model isolation circuit, reset self-checking circuit,
Signal isolation circuit, passive switch amount output circuit, active switch amount output circuit and driving output circuit, the PIC control
Device respectively with analog quantity all the way circuit, two road circuit of analog quantity, on-off model isolation circuit, reset self-checking circuit and signal every
From circuit signal connect, the signal isolation circuit respectively with passive switch amount output circuit, active switch amount output circuit and
Drive the connection of output circuit signal.
Preferably, circuit includes the port FKW to the analog quantity all the way, and the port FKW is serially connected with resistance R14, the electricity
The other end of resistance R14 is parallel with capacitor C13, resistance R23 and inductance L1, and the other end of the inductance L1 is parallel with capacitor C6 and IC
(2) port, the other end of the capacitor C6 are parallel with the resistance R23 other end, the capacitor C13 other end, the end resistance R22 and outGND
Mouthful, the other end of the resistance R22 concatenates the port FKG.
Preferably, the two road circuit of analog quantity includes the port CTL, and the port CTL is simultaneously connected to resistance R13 and resistance
R24, the resistance R13 other end are parallel with capacitor C14, capacitor C7 and inductance L2, and the inductance L2 other end is simultaneously connected to capacitor
C8 and IC (3) port, the other end of the capacitor C8 are parallel with the other end of capacitor C7, the other end of capacitor C14, resistance R24
The other end, the port outGND and the port CTG.
Preferably, the PIC controller uses PIC16F876A-1 type controller.
Preferably, the reset self-checking circuit includes resistance R15 and manual switch S1, the resistance R15 and manual switch
One end of S1 concatenates No. 18 ports of PIC controller, and the other end ground connection of the manual switch S1, the resistance R15's is another
One end and the other end concatenation 5V for being connected to No. 20 ports of PIC controller, inductance L3, resistance R29 and capacitor C3, the inductance L3
Power supply, the other end of the resistance R29 and No. 1 port and the capacitor C4 for connecing PIC controller, the other end of the capacitor C4 simultaneously connect
The other end of capacitor C3 and No. 8 ports of PIC controller 100.
Compared with prior art, the beneficial effects of the present invention are: the present invention carries out function on the basis of original function changes
Into, increase display fault code, the new functions such as self-protection, shake noise reduction, thus accelerate the maintenance speed of maintenance personal, saving
Maintenance man-hours further save cost to reach, and have extensive market applying value.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is present system schematic diagram；
Fig. 2 is analog quantity circuit diagram all the way in Fig. 1；
Fig. 3 is two road circuit diagram of analog quantity in Fig. 1；
Fig. 4 is on-off model isolates circuit diagram in Fig. 1；
Fig. 5 is passive switch amount output circuit figure in Fig. 1；
Fig. 6 is active switch amount output circuit figure in Fig. 1；
Fig. 7 is that output circuit figure is driven in Fig. 1；
Fig. 8 is that self-checking circuit figure is resetted in Fig. 1；
Fig. 9 is that AC220V of the present invention turns DC5V, DC24V power circuit diagram；
Figure 10 is AC220V power interface schematic diagram of the present invention；
Figure 11 is present invention driving, 1 schematic diagram of signal input output interface；
Figure 12 is present invention driving, 2 schematic diagram of signal input output interface；
Figure 13 is analog acquisition circuit power schematic diagram of the present invention；
Figure 14 is PIC programming interface schematic diagram of the present invention；
Figure 15 is IC exclusion schematic diagram of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
PIC controller 100, analog quantity all the way circuit 01, two road circuit 02 of analog quantity, on-off model isolation circuit 03,
Reset self-checking circuit 04, signal isolation circuit 11, passive switch amount output circuit 12, active switch amount output circuit 13, driving
Output circuit 14.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Fig. 1-15 is please referred to, the present invention provides a kind of technical solution: a kind of ventilation and air conditioning system air-valve control circuit board, packet
Include PIC controller 100, analog quantity all the way circuit 01, two road circuit 02 of analog quantity, on-off model isolation circuit 03, reset from
Examine circuit 04, signal isolation circuit 11, passive switch amount output circuit 12, active switch amount output circuit 13 and driving output electricity
Road 14, PIC controller 100 respectively with analog quantity circuit 01, two road circuit 02 of analog quantity, on-off model isolation circuit all the way
03, it resets self-checking circuit 04 to connect with 11 signal of signal isolation circuit, signal isolation circuit 11 is exported with passive switch amount respectively
Circuit 12, active switch amount output circuit 13 are connected with driving 14 signal of output circuit.
Wherein, circuit 01 includes the port FKW to analog quantity all the way, and the port FKW is serially connected with resistance R14, the other end of resistance R14
It is parallel with capacitor C13, resistance R23 and inductance L1, the other end of inductance L1 is parallel with the port capacitor C6 and IC2, and capacitor C6's is another
One end is parallel with the resistance R23 other end, the capacitor C13 other end, the port resistance R22 and outGND, the other end concatenation of resistance R22
The port FKG；
Two road circuit 02 of analog quantity includes the port CTL, and the port CTL is simultaneously connected to resistance R13 and resistance R24, and resistance R13 is another
End is parallel with capacitor C14, capacitor C7 and inductance L2, and the inductance L2 other end is simultaneously connected to the port capacitor C8 and IC3, and capacitor C8's is another
End is parallel with the other end of capacitor C7, the other end of capacitor C14, the resistance R24 other end, the port outGND and the port CTG；
PIC controller 100 uses PIC16F876A-1 type controller；Reset self-checking circuit 04 is including resistance R15 and manually
One end of switch S1, resistance R15 and manual switch S1 concatenate No. 18 ports of PIC controller 100, and manual switch S1's is another
End ground connection, the other end of resistance R15 and No. 20 ports, inductance L3, resistance R29 and the capacitor C3 for being connected to PIC controller 100, electricity
The other end for feeling L3 concatenates 5V power supply, the other end of resistance R29 and No. 1 port and the capacitor C4 for connecing PIC controller 100, capacitor
The other end of the other end shunt-wound capacitance C3 of C4 and No. 8 ports of PIC controller 100.
PIC controller 100 is mainly that device is single-chip microcontroller, and single-chip microcontroller receives input signal (1A, 1B, 1C, 1D), by operation
The data obtained output (2A, 2C, 2E) afterwards；
Analog quantity all the way circuit 01 acquisition by bulk potential device by valve body angular transition become a common practice valve position state 0-5V electricity
Analog feedback signal is pressed, is filtered by LC and inhibits interference, and the position state signal is exported into 0-5V voltage analog feedback letter
Number (1A)；
Two road circuit 02 of analog quantity acquires external input 0-5V voltage analog signal, filters by RLC and inhibits interference, and will
Voltage analog control signal output 0-5V voltage analog signal (1B)；
On-off model isolation circuit 03 receives standard-sized sheet, half-open, the digital output modul signal that closes entirely and air-valve and reaches position
Switching value feedback signal and pass location switch amount feedback signal (being passive switch amount signal).And the voltage signal is isolated
It exports (5V on-off model) (1C)；
It resets self-checking circuit 04 and resets self-test signal by generating by lower button, and the reset self-test signal is exported
(1D)；
It is AD24V switching signal that signal isolation circuit 11, which will input 5V switching signal (2A, 2C, 2E) isolated variable, and will
The AD24V switching signal exports (2B, 2D, 2F)；
Passive switch amount output circuit 12 includes standard-sized sheet signal, half ON signal, full OFF signal, alarm signal, interlocking signal.
Input AD24V switching signal (2B) is converted to passive switch amount signaling switch signal by passive switch amount output circuit 12, and will
The wind valve controller state output；
Active switch amount output circuit 13 includes standard-sized sheet signal, half ON signal, full OFF signal, alarm signal.Active switch
Amount output circuit 13 will input AD24V switching signal (2D) and be converted to AD24V switching signal, and the wind valve controller state is defeated
Out；
Active switch amount output circuit 13 includes to be driven forward, be driven reverse.Driving output circuit 14 is opened AD24V is inputted
OFF signal (2F) is converted to AC220V switching signal, and output driving, maximum drive current 3A；Single-chip microcontroller be PIC series or
Other series
Working principle:
Startup self-detection: reset self-test button 3 seconds is pinned, controller starts self-test by algorithm.And it is dynamic to store air-valve execution
Make time, feedback voltage maximum value, feedback voltage minimum Value Data, these data are known as self-inspection data by the application.
PIC controller 100 is with analog quantity 01 signal of circuit and 03 signal of on-off model isolation circuit and self-checking number all the way
According to comparison, pass through passive switch amount output circuit 12) and the real-time output status signal of active switch amount output circuit 13.
PIC controller 100 receives analog quantity circuit 01, two road circuit 02 of analog quantity, on-off model isolation circuit all the way
03,04 signal of self-checking circuit is resetted.Judge that operating mode, operating mode are Analog control mode and digital output modul mode.
Analog control mode: by single-chip microcontroller calculate target position input two road circuit 02 of analog quantity variable resistance with
01 signal of circuit with reference to self-inspection data judges air-valve position and target position to analog quantity all the way, passes through driving output circuit 14 and drives
Dynamic air-valve movement, makes air-valve angle be allowed to be consistent with target position.
Digital output modul mode: single-chip microcontroller calculates on-off model isolation circuit 03 and analog quantity all the way by internal processes
01 signal of circuit judges air-valve position and target position with reference to self-inspection data, drives air-valve dynamic by driving output circuit 14
Make, adjustment air-valve angle is allowed to be consistent with target position.
Fault alarm:
It is more than that runing time is alarmed with reference to self-inspection data when wind valve controller drives actuator operation；Wind valve controller is certainly
When inspection, fan valve executor alarm opposite with ultramagnifier signal.
Program is as follows:
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (5)
1. a kind of ventilation and air conditioning system air-valve control circuit board, including PIC controller (100), analog quantity circuit (01), mould all the way
Two road circuit (02) of analog quantity, resets self-checking circuit (04), signal isolation circuit (11), nothing at on-off model isolation circuit (03)
Source switch amount output circuit (12), active switch amount output circuit (13) and driving output circuit (14), it is characterised in that: described
PIC controller (100) respectively with analog quantity circuit (01), two road circuit (02) of analog quantity, on-off model isolation circuit all the way
(03), reset self-checking circuit (04) connected with signal isolation circuit (11) signal, the signal isolation circuit (11) respectively with nothing
Source switch amount output circuit (12), active switch amount output circuit (13) are connected with driving output circuit (14) signal.
2. a kind of ventilation and air conditioning system air-valve control circuit board according to claim 1, it is characterised in that: the analog quantity
Circuit (01) includes the port FKW all the way, and the port FKW is serially connected with resistance R14, and the other end of the resistance R14 is parallel with electricity
Hold C13, resistance R23 and inductance L1, the other end of the inductance L1 and is parallel with capacitor C6 and IC (2) port, the capacitor C6's
The other end is parallel with the resistance R23 other end, the capacitor C13 other end, the port resistance R22 and outGND, and the resistance R22's is another
The end concatenation port FKG.
3. a kind of ventilation and air conditioning system air-valve control circuit board according to claim 1, it is characterised in that: the analog quantity
Two road circuits (02) include the port CTL, and the port CTL is simultaneously connected to resistance R13 and resistance R24, and the resistance R13 other end is simultaneously
It is associated with capacitor C14, capacitor C7 and inductance L2, the inductance L2 other end is simultaneously connected to capacitor C8 and IC (3) port, the capacitor C8
The other end be parallel with the other end of capacitor C7, the other end of capacitor C14, the resistance R24 other end, the port outGND and the end CTG
Mouthful.
4. a kind of ventilation and air conditioning system air-valve control circuit board according to claim 1, it is characterised in that: the PIC control
Device (100) processed uses PIC16F876A-1 type controller.
5. a kind of ventilation and air conditioning system air-valve control circuit board according to claim 1, it is characterised in that: described to reset certainly
Inspection circuit (04) includes that one end of resistance R15 and manual switch S1, the resistance R15 and manual switch S1 concatenates PIC and controls
No. 18 ports of device (100), the other end ground connection of the manual switch S1, the other end of the resistance R15 are simultaneously connected to PIC control
No. 20 ports of device (100), inductance L3, resistance R29 and capacitor C3, the inductance L3 the other end concatenate 5V power supply, the electricity
It hinders the other end of R29 and connects No. 1 port of PIC controller (100) and the other end shunt-wound capacitance C3 of capacitor C4, the capacitor C4
The other end and PIC controller (100) No. 8 ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214906.6A CN109812944B (en) | 2019-03-20 | 2019-03-20 | Air valve control circuit board of ventilation air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214906.6A CN109812944B (en) | 2019-03-20 | 2019-03-20 | Air valve control circuit board of ventilation air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109812944A true CN109812944A (en) | 2019-05-28 |
| CN109812944B CN109812944B (en) | 2023-12-01 |
Family
ID=66609764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910214906.6A Active CN109812944B (en) | 2019-03-20 | 2019-03-20 | Air valve control circuit board of ventilation air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812944B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984705A (en) * | 2021-04-09 | 2021-06-18 | 宁波奥克斯电气股份有限公司 | Air volume distribution method and device and air conditioner |
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2019
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| US20180224872A1 (en) * | 2014-09-02 | 2018-08-09 | Johnson Controls Technology Company | Hvac actuator with automatic line voltage input selection |
| CN105864950A (en) * | 2016-05-25 | 2016-08-17 | 成都克雷斯达科技有限公司 | Automatic-control ventilating system based on signal conversion circuit |
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| CN112984705A (en) * | 2021-04-09 | 2021-06-18 | 宁波奥克斯电气股份有限公司 | Air volume distribution method and device and air conditioner |
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