CN203190565U - Air conditioner control module - Google Patents
Air conditioner control module Download PDFInfo
- Publication number
- CN203190565U CN203190565U CN 201320046838 CN201320046838U CN203190565U CN 203190565 U CN203190565 U CN 203190565U CN 201320046838 CN201320046838 CN 201320046838 CN 201320046838 U CN201320046838 U CN 201320046838U CN 203190565 U CN203190565 U CN 203190565U
- Authority
- CN
- China
- Prior art keywords
- circuit
- chip microcomputer
- control module
- photoelectric isolating
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of electronic information, in particular to an air conditioner control module. The air conditioner control module comprises a single-chip microcomputer, an over/under-voltage protection circuit, a sampling comparison circuit, a first optoelectronic isolation circuit, a second optoelectronic isolation circuit, a first driving circuit, a second driving circuit and a high-low pressure detecting circuit. The first optoelectronic isolation circuit is connected to an I/O port of the single-chip microcomputer, an instruction signal is output to the single-chip microcomputer, the sampling comparison circuit and the over/under-voltage protection circuit are connected to the single-chip microcomputer through I/O ports, the single-chip microcomputer is connected to the first driving circuit through the second optoelectronic isolation circuit, and the high-low pressure detecting circuit is connected with the single-chip microcomputer through the second optoelectronic isolation circuit and the second driving circuit. The air conditioner control module is simple in structure, reasonable in design, and capable of effectively protecting an air conditioner compressor and being suitable for all air conditioners on a market.
Description
Technical field
The utility model relates to electronic information technical field, is specifically related to a kind of universal air conditioner control module.
Background technology
The air-conditioning brand is numerous in the market, and each producer is not open related data for technical know-how, and this has limited the integrated of system to a certain extent, and is especially intelligentized integrated.Along with the development of technology, also occurred some air-conditioning control panels in recent years, but it is all relatively poor to control the air-conditioning of certain several brand and versatility and compatibility mostly.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of modern design, and can adapt to the air-conditioning control module of all air-conditionings on the market.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of air-conditioning control module; comprise a single-chip microcomputer (MCU); cross/the low-voltage protection circuit; the sampling comparison circuit; first photoelectric isolating circuit; second photoelectric isolating circuit; first drive circuit; second drive circuit and height pressure detection circuit; described first photoelectric isolating circuit is connected on the I/O interface of single-chip microcomputer; command signal is transported to single-chip microcomputer; described sampling comparison circuit and mistake/low-voltage protection circuit is connected to single-chip microcomputer through the I/O interface respectively; described single-chip microcomputer is connected to first drive circuit through second photoelectric isolating circuit, and described height pressure detection circuit is connected to single-chip microcomputer through second photoelectric isolating circuit and second drive circuit.
Be equipped with photoelectrical coupler on described first photoelectric isolating circuit and second photoelectric isolating circuit.
Be connected with watchdog module on the described single-chip microcomputer.
The beneficial effects of the utility model are: the utility model constitutes simple, and is reasonable in design, can effectively protect compressor of air conditioner, biggest advantage to be to adapt to air-conditionings all on the market.
Description of drawings
Fig. 1 is the utility model system block diagram.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1; a kind of air-conditioning control module; comprise a single-chip microcomputer (MCU); cross/the low-voltage protection circuit; the sampling comparison circuit; first photoelectric isolating circuit; second photoelectric isolating circuit; first drive circuit; second drive circuit and height pressure detection circuit; first photoelectric isolating circuit is connected on the I/O interface of single-chip microcomputer; command signal is transported to single-chip microcomputer; sampling comparison circuit and mistake/low-voltage protection circuit are connected to single-chip microcomputer through the I/O interface respectively; single-chip microcomputer is connected to first drive circuit through second photoelectric isolating circuit; the height pressure detection circuit is connected to single-chip microcomputer through second photoelectric isolating circuit and second drive circuit; be equipped with photoelectrical coupler on first photoelectric isolating circuit and second photoelectric isolating circuit, be connected with watchdog module on the single-chip microcomputer.
The effect of each module and function in the utility model;
Cross/the low-voltage protection circuit
The cooler compressor normal working voltage if voltage exceeds this scope, may cause damage to compressor between 180V-245V, therefore need take safeguard measure, and compressor and fan electromotor are stopped.The utility model is by comparator benchmark and sampled voltage to be compared, and imports single-chip microcomputer then and carries out overvoltage/undervoltage control.
The sampling comparison circuit
With civil power after the transformer transformation again dividing potential drop obtain the voltage that changes with civil power, export comparison signal thereby compare with this voltage with through the reference voltage of voltage stabilizing, to carry out (owing) voltage protection.
The height pressure detection circuit
When refrigeration system hypertonia or low excessively, the compressor operation electric current is excessive, and when heating, the compressor return air temperature is crossed to hang down and all can be caused compressor damage.For preventing the air-conditioning system frequent starting that in running, causes owing to other factors and the compressor damage that stops to cause, need pipeline pressure is detected.
Watchdog module
" house dog " technology is exactly the continuous supervisory programme circular flow time, if discovery time surpasses the known cycle sets time, think that then system has been absorbed in " endless loop ", the program of forcing then turns back to the 0000H entrance, arrange one section error handler at the 0000H place, system's operation is put on the right track.
Photoelectric isolating circuit
For effectively avoiding forceful electric power to the interference of circuit, take photoelectric coupled device.Photoelectrical coupler can suppress spike effectively in the transmission signal and various noise disturbs, and the signal noise ratio on the passage is greatly improved, and mainly contains following several respects:
(1) input impedance of photoelectrical coupler is very little, have only hundreds of ohm, and the impedance of interference source is bigger, is generally 10
5～10
6Ω.According to voltage divider principle as can be known, even the amplitude of interference voltage is bigger, can be very little but be fed to the noise voltage of photoelectrical coupler input, can only form very faint electric current, can not make diode luminous owing to there are enough energy, thereby be suppressed.
(2) there is not electrical link between the input circuit of photoelectrical coupler and the output loop, not altogether yet; Between distribution capacity minimum, and insulaion resistance is very big, so loop various jamming incoherent signals on one side all are difficult to be fed to another side by photoelectrical coupler, has avoided the generation of the interfering signal of common-impedance coupling.
(3) photoelectrical coupler can play good safety guarantee effect, even break down when external equipment, even during the input signal cable short circuit, also can not damage circuit.Because can bear several kilovolts high pressure between the input circuit of LMDS Light Coupled Device and the output loop.
(4) the response speed of photoelectrical coupler is exceedingly fast, and it is responded has only about 10 μ s time delay, is suitable for responding the very high occasion of rate request.
Drive circuit
Its essence is a power amplification circuit, make that for satisfying load rating power load can operate as normal.It is connected between main circuit and the control circuit, is used for the intermediate circuit that signal to control circuit amplifies, thereby can respond faint input signal.
Because power line can be received on each chip, if having noise or power supply unclean in the power supply, then noise can be brought each chip into, and is difficult to remove.Therefore, reasonably arranging power line is one of major measure of raising system antijamming capability.In power-supply wiring, the AC and DC power supply need separate, and the power line of different magnitudes of voltage also will separate.In digital circuit, the circuit that the switching value variation causes can produce high fdrequency component greatly in power line, therefore need be at the input/output terminal of power supply IC two electric capacity in parallel, to reduce noise voltage.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. air-conditioning control module; comprise a single-chip microcomputer; cross/the low-voltage protection circuit; the sampling comparison circuit; first photoelectric isolating circuit; second photoelectric isolating circuit; first drive circuit; second drive circuit and height pressure detection circuit; described first photoelectric isolating circuit is connected on the I/O interface of single-chip microcomputer; command signal is transported to single-chip microcomputer; described sampling comparison circuit and mistake/low-voltage protection circuit is connected to single-chip microcomputer through the I/O interface respectively; described single-chip microcomputer is connected to first drive circuit through second photoelectric isolating circuit, and described height pressure detection circuit is connected to single-chip microcomputer through second photoelectric isolating circuit and second drive circuit.
2. air-conditioning control module according to claim 1 is characterized in that: be equipped with photoelectrical coupler on described first photoelectric isolating circuit and second photoelectric isolating circuit.
3. air-conditioning control module according to claim 1 is characterized in that: be connected with watchdog module on the described single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046838 CN203190565U (en) | 2013-01-28 | 2013-01-28 | Air conditioner control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046838 CN203190565U (en) | 2013-01-28 | 2013-01-28 | Air conditioner control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190565U true CN203190565U (en) | 2013-09-11 |
Family
ID=49107420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320046838 Expired - Fee Related CN203190565U (en) | 2013-01-28 | 2013-01-28 | Air conditioner control module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203190565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460636A (en) * | 2014-12-25 | 2015-03-25 | 李钢 | Concentrated air conditioner system controller |
| CN105650328A (en) * | 2016-01-27 | 2016-06-08 | 珠海格力电器股份有限公司 | Drive signal anti-collision protection device, air conditioner system and control method |
-
2013
- 2013-01-28 CN CN 201320046838 patent/CN203190565U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460636A (en) * | 2014-12-25 | 2015-03-25 | 李钢 | Concentrated air conditioner system controller |
| CN105650328A (en) * | 2016-01-27 | 2016-06-08 | 珠海格力电器股份有限公司 | Drive signal anti-collision protection device, air conditioner system and control method |
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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: 20130911 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |