CN109812944B - Air valve control circuit board of ventilation air conditioning system - Google Patents
Air valve control circuit board of ventilation air conditioning system Download PDFInfo
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- CN109812944B CN109812944B CN201910214906.6A CN201910214906A CN109812944B CN 109812944 B CN109812944 B CN 109812944B CN 201910214906 A CN201910214906 A CN 201910214906A CN 109812944 B CN109812944 B CN 109812944B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 12
- 238000004378 air conditioning Methods 0.000 title claims abstract description 11
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims description 42
- 238000010586 diagram Methods 0.000 description 15
- 238000012360 testing method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000001914 filtration Methods 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
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The application discloses a control circuit board of a ventilation air-conditioning system air valve, which belongs to the technical field of electrical control equipment and comprises a PIC controller, an analog one-way circuit, an analog two-way circuit, a switching value signal isolation circuit, a reset self-checking circuit, a signal isolation circuit, a passive switching value output circuit, an active switching value output circuit and a driving output circuit.
Description
Technical Field
The application relates to the technical field of electrical control equipment, in particular to a control circuit board for an air valve of a ventilation air conditioning system.
Background
The air valve is an indispensable accessory in ventilation, air conditioning and air purification engineering, is generally used in air conditioner and ventilation system pipelines, is used for adjusting the air quantity of branch pipes, can also be used for the mixed adjustment of fresh air and return air, and has the following defects: when the air valve control circuit board encounters the conditions of overlarge resistance, blocking and the like of the air valve, the overlarge current can occur, so that components of the circuit board are burnt out, and the circuit board has no self-protection function; after receiving a feedback command of the potentiometer, the air valve control circuit board executes the opening of the air valve, and when the potentiometer fails, the circuit board cannot detect the failure, so that the air valve actuator can malfunction, and the circuit board and the actuator are damaged; the air valve control circuit board can not diagnose the fault cause by itself, which brings difficulty to maintenance; the application designs a ventilation air-conditioning system air valve control circuit board which is a common wiring terminal block, and is time-consuming and labor-consuming to install and overhaul.
Disclosure of Invention
The application aims to provide a damper control circuit board of a ventilation air-conditioning system, which solves the problems of the prior damper control circuit board proposed in the background art.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a ventilation air conditioning system blast gate control circuit board, includes PIC controller, analog quantity circuit, switching value signal isolation circuit, reset self-checking circuit, signal isolation circuit, passive switching value output circuit, active switching value output circuit and drive output circuit, PIC controller respectively with analog quantity circuit, switching value signal isolation circuit, reset self-checking circuit and signal isolation circuit signal connection, signal isolation circuit respectively with passive switching value output circuit, active switching value output circuit and drive output circuit signal connection.
Preferably, the analog quantity one-way circuit comprises a FKW port, the FKW port is connected with a resistor R14 in series, the other end of the resistor R14 is connected with a capacitor C13, a resistor R23 and an inductor L1 in parallel, the other end of the inductor L1 is connected with a capacitor C6 and an IC (2) port in parallel, the other end of the capacitor C6 is connected with the other end of the resistor R23, the other end of the capacitor C13, a resistor R22 and an outGND port in parallel, and the other end of the resistor R22 is connected with an FKG port in series.
Preferably, the analog two-way circuit comprises a CTL port, the CTL port is connected in parallel with a resistor R13 and a resistor R24, the other end of the resistor R13 is connected in parallel with a capacitor C14, a capacitor C7 and an inductor L2, the other end of the inductor L2 is connected in parallel with a capacitor C8 and an IC (3) port, and the other end of the capacitor C8 is connected in parallel with the other end of the capacitor C7, the other end of the capacitor C14, the other end of the resistor R24, the outGND port and the CTG port.
Preferably, the PIC controller is a PIC16F876A-1 type controller.
Preferably, the reset self-checking circuit comprises a resistor R15 and a manual switch S1, wherein one ends of the resistor R15 and the manual switch S1 are connected in series with an 18-number port of the PIC controller, the other end of the manual switch S1 is grounded, the other end of the resistor R15 is connected in parallel with a 20-number port of the PIC controller, an inductor L3, a resistor R29 and a capacitor C3, the other end of the inductor L3 is connected in series with a 5V power supply, the other end of the resistor R29 is connected in parallel with a 1-number port of the PIC controller and a capacitor C4, and the other end of the capacitor C4 is connected in parallel with the other end of the capacitor C3 and an 8-number port of the PIC controller 100.
Compared with the prior art, the application has the beneficial effects that: the application improves the functions based on the original functions, and adds new functions of fault code display, self protection, shaking noise reduction and the like, thereby accelerating the maintenance speed of maintenance personnel, saving the maintenance man-hour, further saving the cost and having wide market application value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system of the present application;
FIG. 2 is a circuit diagram of one analog circuit of FIG. 1;
FIG. 3 is a circuit diagram of the analog two-way circuit of FIG. 1;
FIG. 4 is a diagram of the switching signal isolation circuit of FIG. 1;
FIG. 5 is a circuit diagram of the passive switching value output of FIG. 1;
FIG. 6 is a circuit diagram of the active switching value output of FIG. 1;
FIG. 7 is a circuit diagram of the driving output of FIG. 1;
FIG. 8 is a diagram of the reset self-test circuit of FIG. 1;
FIG. 9 is a circuit diagram of the AC220V to DC5V, DC V power supply of the present application;
FIG. 10 is a schematic diagram of an AC220V power interface of the present application;
FIG. 11 is a schematic diagram of a driving and signal input/output interface 1 according to the present application;
FIG. 12 is a schematic diagram of the driving and signal input/output interface 2 according to the present application;
FIG. 13 is a schematic diagram of an analog acquisition circuit power supply of the present application;
FIG. 14 is a schematic diagram of a PIC programming interface in accordance with the present application;
fig. 15 is a schematic diagram of IC exclusion according to the present application.
In the drawings, the list of components represented by the various numbers is as follows:
the PIC controller 100, an analog one-way circuit 01, an analog two-way circuit 02, a switching value signal isolation circuit 03, a reset self-checking circuit 04, a signal isolation circuit 11, a passive switching value output circuit 12, an active switching value output circuit 13 and a driving output circuit 14.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Referring to fig. 1-15, the present application provides a technical solution: the utility model provides a ventilation air conditioning system blast gate control circuit board, including PIC controller 100, analog quantity circuit 01, analog quantity circuit 02, switching value signal isolation circuit 03, reset self-checking circuit 04, signal isolation circuit 11, passive switching value output circuit 12, active switching value output circuit 13 and drive output circuit 14, PIC controller 100 respectively with analog quantity circuit 01, analog quantity circuit 02, switching value signal isolation circuit 03, reset self-checking circuit 04 and signal isolation circuit 11 signal connection, signal isolation circuit 11 respectively with passive switching value output circuit 12, active switching value output circuit 13 and drive output circuit 14 signal connection.
The analog quantity one-way circuit 01 comprises a FKW port, a FKW port is connected with a resistor R14 in series, the other end of the resistor R14 is connected with a capacitor C13, a resistor R23 and an inductor L1 in parallel, the other end of the inductor L1 is connected with a capacitor C6 and an IC2 port in parallel, the other end of the capacitor C6 is connected with the other end of the resistor R23, the other end of the capacitor C13, the resistor R22 and an outpGND port in parallel, and the other end of the resistor R22 is connected with an FKG port in series;
the analog quantity two-way circuit 02 comprises a CTL port, the CTL port is connected with a resistor R13 and a resistor R24 in parallel, the other end of the resistor R13 is connected with a capacitor C14, a capacitor C7 and an inductor L2 in parallel, the other end of the inductor L2 is connected with a capacitor C8 and an IC3 port in parallel, and the other end of the capacitor C8 is connected with the other end of the capacitor C7, the other end of the capacitor C14, the other end of the resistor R24, an outpGND port and a CTG port in parallel;
the PIC controller 100 adopts a PIC16F876A-1 type controller; the reset self-checking circuit 04 comprises a resistor R15 and a manual switch S1, wherein one ends of the resistor R15 and the manual switch S1 are connected in series with an No. 18 port of the PIC controller 100, the other end of the manual switch S1 is grounded, the other end of the resistor R15 is connected in parallel with a No. 20 port of the PIC controller 100, an inductor L3, a resistor R29 and a capacitor C3, the other end of the inductor L3 is connected in series with a 5V power supply, the other end of the resistor R29 is connected in parallel with a No. 1 port of the PIC controller 100 and a capacitor C4, and the other end of the capacitor C4 is connected in parallel with the other end of the capacitor C3 and a No. 8 port of the PIC controller 100.
The PIC controller 100 is mainly a singlechip, and the singlechip receives input signals (1A, 1B, 1C and 1D) and outputs data (2A, 2C and 2E) obtained after operation;
the analog quantity one-way circuit 01 collects 0-5V voltage analog feedback signals which are obtained by converting the valve body angle into the valve position state by an external potentiometer, and outputs the position state signals into 0-5V voltage analog feedback signals (1A) through LC filtering to inhibit interference;
the analog quantity two-way circuit 02 collects an externally input 0-5V voltage analog signal, suppresses interference through RLC filtering, and outputs the voltage analog quantity control signal to a 0-5V voltage analog signal (1B);
the switching value signal isolation circuit 03 receives switching value control signals of full-on, half-on and full-off, and an air valve on-position switching value feedback signal and an off-position switching value feedback signal (both are passive switching value signals). And isolating the voltage signal output (5V switching value signal) (1C);
the reset self-checking circuit 04 generates a reset self-checking signal by pressing a button and outputs the reset self-checking signal (1D);
the signal isolation circuit 11 isolates and converts input 5V switching signals (2A, 2C, 2E) into AD24V switching signals, and outputs the AD24V switching signals (2B, 2D, 2F);
the passive switching value output circuit 12 includes a full-on signal, a half-on signal, a full-off signal, an alarm signal, and an interlock signal. The passive switching value output circuit 12 converts an input AD24V switching signal (2B) into a passive switching value signal switching signal and outputs the state of the air valve controller;
the active switching value output circuit 13 includes a full-on signal, a half-on signal, a full-off signal, and an alarm signal. The active switching value output circuit 13 converts an input AD24V switching signal (2D) into an AD24V switching signal and outputs the state of the air valve controller;
the active switching value output circuit 13 includes forward rotation drive and reverse rotation drive. The drive output circuit 14 converts an input AD24V switching signal (2F) into an AC220V switching signal, and outputs a drive, maximum drive current 3A; the single chip microcomputer is PIC series or other series
Working principle:
starting up self-checking: the reset self-test button is pressed for 3 seconds, and the controller starts self-test through an algorithm. And stores the data of the action time, the feedback voltage maximum value and the feedback voltage minimum value of the air valve.
The PIC controller 100 compares the analog one-way circuit 01 signal and the switching value signal isolation circuit 03 signal with the self-test data, and outputs a status signal in real time through the passive switching value output circuit 12) and the active switching value output circuit 13.
The PIC controller 100 receives signals of an analog one-way circuit 01, an analog two-way circuit 02, a switching value signal isolation circuit 03 and a reset self-checking circuit 04. Judging the working mode, wherein the working mode is an analog quantity control mode and a switching value control mode.
Analog quantity control mode: the variable resistor of the analog two-circuit 02 and the analog one-circuit 01 signal are calculated by the singlechip, the self-checking data is referenced, the position and the target position of the air valve are judged, and the air valve is driven to act by the driving output circuit 14, so that the angle of the air valve is kept consistent with the target position.
Switching value control mode: the singlechip calculates signals of the switching value signal isolation circuit 03 and the analog one-way circuit 01 through an internal program, judges the position of the air valve and the target position by referring to self-checking data, drives the air valve to act through the driving output circuit 14, and adjusts the angle of the air valve to keep consistent with the target position.
And (3) fault alarm:
when the air valve controller drives the actuator to operate, the air valve controller refers to self-checking data and alarms when the air valve controller exceeds the operation time; when the air valve controller self-tests, the air valve actuator alarms when the signal of the air valve actuator is opposite to that of the feedback device.
The procedure is as follows:
in the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the application disclosed above are intended only to assist in the explanation of the application. The preferred embodiments are not exhaustive or to limit the application to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, to thereby enable others skilled in the art to best understand and utilize the application. The application is limited only by the claims and the full scope and equivalents thereof.
Claims (2)
1. The utility model provides a ventilation air conditioning system blast gate control circuit board, includes PIC controller (100), analog quantity circuit (01), analog quantity two circuit (02), switching value signal isolation circuit (03), reset self-checking circuit (04), signal isolation circuit (11), passive switching value output circuit (12), active switching value output circuit (13) and drive output circuit (14), its characterized in that: the PIC controller (100) is respectively connected with an analog quantity one-way circuit (01), an analog quantity two-way circuit (02), a switching quantity signal isolation circuit (03), a reset self-checking circuit (04) and a signal isolation circuit (11) in a signal mode, and the signal isolation circuit (11) is respectively connected with a passive switching quantity output circuit (12), an active switching quantity output circuit (13) and a driving output circuit (14) in a signal mode;
the analog quantity one-way circuit (01) comprises a FKW port, the FKW port is connected with a resistor R14 in series, the other end of the resistor R14 is connected with a capacitor C13, a resistor R23 and an inductor L1 in parallel, the other end of the inductor L1 is connected with a capacitor C6 and an IC (2) port in parallel, the other end of the capacitor C6 is connected with the other end of the resistor R23, the other end of the capacitor C13, a resistor R22 and an outGND port in parallel, and the other end of the resistor R22 is connected with an FKG port in series;
the analog quantity two-way circuit (02) comprises a CTL port, wherein the CTL port is connected with a resistor R13 and a resistor R24 in parallel, the other end of the resistor R13 is connected with a capacitor C14, a capacitor C7 and an inductor L2 in parallel, the other end of the inductor L2 is connected with a capacitor C8 and an IC (3) port in parallel, and the other end of the capacitor C8 is connected with the other end of the capacitor C7, the other end of the capacitor C14, the other end of the resistor R24, an outGND port and a CTG port in parallel;
the reset self-checking circuit (04) comprises a resistor R15 and a manual switch S1, wherein one ends of the resistor R15 and the manual switch S1 are connected with an 18-number port of the PIC controller (100) in series, the other end of the manual switch S1 is grounded, the other end of the resistor R15 is connected with a 20-number port of the PIC controller (100) in parallel, an inductor L3, a resistor R29 and a capacitor C3 in parallel, the other end of the inductor L3 is connected with a 5V power supply in series, the other end of the resistor R29 is connected with a 1-number port of the PIC controller (100) and a capacitor C4 in parallel, and the other end of the capacitor C4 is connected with the other end of the capacitor C3 and an 8-number port of the PIC controller (100) in parallel.
2. The ventilation and air conditioning system damper control circuit board of claim 1, wherein: the PIC controller (100) adopts a PIC16F876A-1 type controller.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN109812944A CN109812944A (en) | 2019-05-28 |
| CN109812944B true CN109812944B (en) | 2023-12-01 |
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| 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 |
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| CN (1) | CN109812944B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112984705B (en) * | 2021-04-09 | 2022-04-19 | 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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| 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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| CN206741267U (en) * | 2017-04-24 | 2017-12-12 | 普瀚辰电子产品（北京）有限公司 | A kind of analog quantity type air-valve driver control apparatus |
| CN108664439A (en) * | 2018-05-15 | 2018-10-16 | 北京机械设备研究所 | A kind of analogue quantity output circuit device of number isolation |
| CN209726450U (en) * | 2019-03-20 | 2019-12-03 | 杭州市地铁集团有限责任公司运营分公司 | A kind of ventilation and air conditioning system air-valve control circuit board |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11609589B2 (en) * | 2014-09-02 | 2023-03-21 | Johnson Controls Tyco IP Holdings LLP | HVAC actuator with automatic line voltage input selection |
| CH713392A1 (en) * | 2017-01-30 | 2018-07-31 | Clean Air Entpr Ag | Control electronics for several electrostatic filters. |
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2019
- 2019-03-20 CN CN201910214906.6A patent/CN109812944B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106291325A (en) * | 2016-08-23 | 2017-01-04 | 武汉船用机械有限责任公司 | A kind of pilot system of marine deck machinery electrical system |
| CN206741267U (en) * | 2017-04-24 | 2017-12-12 | 普瀚辰电子产品（北京）有限公司 | A kind of analog quantity type air-valve driver control apparatus |
| CN108664439A (en) * | 2018-05-15 | 2018-10-16 | 北京机械设备研究所 | A kind of analogue quantity output circuit device of number isolation |
| CN209726450U (en) * | 2019-03-20 | 2019-12-03 | 杭州市地铁集团有限责任公司运营分公司 | A kind of ventilation and air conditioning system air-valve control circuit board |
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Effective date of registration: 20231102 Address after: 310017 floor 12, building 3, No. 466, Jiuhe Road, Shangcheng District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Metro Operation Co.,Ltd. Address before: 310017 Room 403, main building of Hangzhou Auchan Hotel, 168 Genshan Road, Pengbu Town, Jianggan District, Hangzhou, Zhejiang Applicant before: OPERATION BRANCH OF HANGZHOU METRO GROUP Co.,Ltd. |
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