CN205079401U - Safe control system of intelligence air conditioner - Google Patents
Safe control system of intelligence air conditioner Download PDFInfo
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- CN205079401U CN205079401U CN201520875358.9U CN201520875358U CN205079401U CN 205079401 U CN205079401 U CN 205079401U CN 201520875358 U CN201520875358 U CN 201520875358U CN 205079401 U CN205079401 U CN 205079401U
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Abstract
The utility model discloses a safe control system of intelligence air conditioner, which comprises an indoor set and an outdoor set, the indoor set is equipped with indoor main control board, the off -premises station is equipped with outdoor main control board and frequency conversion board, set up on the frequency conversion board IGBT modular dirve unit, with the communication unit of outdoor main control board, outdoor main control board is including the power supply circuit who connects the commercial power, power supply circuit includes by the bridge type rectifier circuit of triode with diode cluster one -tenth that singlechip, the programme -controlled reduction voltage circuit of capacitanc, switch circuit, switch circuit include two sets of switches, and bridge type rectifier circuit's output is connected to first cluster switch, and electric capacity C2 and triode Q4's output is connected to the second cluster switch, and two sets of programme -controlled synchro switch are closed simultaneously. The utility model provides the high power factor of commercial power practices thrift the electric energy more.
Description
Technical field
The utility model relates to air-conditioner technical field, more particularly, relates to a kind of safety control system of intelligent air conditioner.
Background technology
The earth environment that we depend on for existence, natural resources is deficient gradually, and the high speed development of economic activity impels energy demand to grow with each passing day.The energy use, how to balance a great problem becoming the whole mankind between expanding economy and ecological environmental protection, solve heat recovery, economize energy, improve energy utilization rate, be each industry must faced by problem.The in-built frequency conversion plate of transducer air conditioning, regulates the running speed of cooler compressor at any time, thus accomplishes the reasonable employment energy; Because its compressor can not frequently be opened, the duty that compressor keeps stable can be made, air-conditioning whole energy successful can be made.On the other hand, due to convertible frequency air-conditioner running balance, vibrations reduce, so noise also decreases.Therefore, transducer air conditioning is the low advantage with extending air-conditioning service life with noise, obtains the favor of users.
At present, transducer air conditioning mainly still adopts civil power as the power supply of air-conditioner.Its power circuit adopts safety isolating transformer, while step-down, also can prevent late-class circuit electric shock risk.Transformer belongs to inductive reactive element.In society, all trades and professions use induction reactance electrical equipment all in a large number, such as: motor, injection machine, incubator, electric heater, electric heater, electromagnetic oven, electric kettle etc.A large amount of use induction reactance electrical equipment causes huge energy waste can to the mains supply of country, because inductive circuit can make the reactive power of civil power increase, power factor (PF) reduces.If go to compensate perception unnecessary in (neutralization) inductive circuit with capacitive circuit, definitely can increase the active power of civil power theoretically, reduce reactive power, thus improve the power factor (PF) of mains supply.But, also do not see that related documents is openly reported at present.
Utility model content
The technical problems to be solved in the utility model is: there is the problem reducing power factor (PF) for current safety isolating transformer, a kind of safety control system of intelligent air conditioner is provided, eliminate safety isolating transformer, have employed capacitor and carry out step-down, bridge switching circuit carries out Secure isolation, make the use of transducer air conditioning safer, to overcome the deficiencies in the prior art.
The utility model solves the technical scheme that its technical problem adopts: the safety control system of intelligent air conditioner, comprise indoor set and off-premises station, described indoor set is provided with indoor master control borad, and described off-premises station is provided with outdoor master control borad and frequency conversion plate, frequency conversion plate is arranged IGBT module driver element, with the communication unit of outdoor master control borad, described outdoor master control borad comprises the power circuit connecting civil power, and described power circuit comprises bridge rectifier, single-chip microcomputer, and also comprise condenser type program controlled hypertension circuit, on-off circuit, described bridge rectifier is by triode Q1, Q3 and diode D2, D3 forms, triode Q1, the base stage of Q3 connects single-chip microcomputer, and described condenser type program controlled hypertension circuit comprises electric capacity C2, C3, C4 and triode Q4, Q5, by electric capacity C2, C3, C4 forms direct current step pressure reducing, triode Q4, the base stage of Q5 connects described single-chip microcomputer, and described on-off circuit comprises two groups of program control synchro switches, first group of program control synchro switch K1, K2 connects the output of described bridge rectifier, the input of electric capacity C2 and triode Q4, thus bridge rectifier and late-class circuit can be disconnected by first group of program control synchro switch, second group of program control synchro switch K3, K4 connects the output of electric capacity C2 and triode Q4, the input of electric capacity C3 and triode Q5 is closed when two groups of program control synchro switches are different.
Frequency conversion plate IGBT module driver element is connected at the output of described power circuit.
Described indoor master control borad is connected with described outdoor master control borad communication.
Connect the first output voltage detecting circuit at the input of described first group of program control synchro switch, described output voltage detecting circuit is made up of resistance R7, R8, R9, and resistance R8 connects described single-chip microcomputer.
Also comprise the voltage detection circuit for time synchronism calibration, described voltage detection circuit is made up of diode D1, resistance R3, R4, R5.
Also comprise stand-by power supply circuit, described stand-by power supply circuit is made up of triode Q2, electric capacity C1, and the base stage of triode Q2 connects described single-chip microcomputer.
Compared with prior art, the beneficial effects of the utility model are:
Air-conditioner power circuit of the present utility model, according to the feature of capacitance energy storage, adopts bridge switch structure, realizes the object of output safety insulating power supply.Instead of traditional transformer step-down circuit with condenser type program controlled hypertension circuit, eliminate heavy power transformer, both provided cost savings, and turn improved the power factor (PF) of civil power, for country saves a large amount of electric energy, also for power circuit saves hardware space.
The utility model is by bridge switch structure, and applicating software programming technology just achieves the object of power safety isolation easily.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the safety control system of the utility model intelligent air conditioner.
Fig. 2 is the power circuit diagram of the safety control system of the utility model intelligent air conditioner.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
See Fig. 1-2, the intelligent air conditioner involved by the utility model comprises indoor set and off-premises station, and indoor set is provided with indoor master control borad, and off-premises station is provided with outdoor master control borad and frequency conversion plate.The power supply of indoor master control borad is provided by the storage capacitor on outdoor master control borad by indoor and outdoor connecting line.Outdoor master control borad comprise outdoor temperature detecting unit, outdoor DC fan control unit, four-way change-over valve control unit, electronic expansion valve controls unit, switching power supply, outdoor main control MCU unit, with the composition such as indoor set communication unit; The power supply of its outdoor master control borad takes from power circuit.Frequency conversion plate comprises the compositions such as communication unit, IGBT module driver element and DC frequency-changeable compressor.Electric energy is transported to the IGBT module driver element of off-premises station frequency conversion plate, IGBT module drive unit drives DC frequency converting air-conditioner.
The power circuit of the safety control system of intelligent air conditioner comprises bridge rectifier 1, single-chip microcomputer, also comprise condenser type program controlled hypertension circuit, on-off circuit 3, described bridge rectifier is by triode Q1, Q3 and diode D2, D3 forms, triode Q1, the base stage of Q3 connects single-chip microcomputer, described condenser type program controlled hypertension circuit comprises electric capacity C2, C3, C4 and triode Q4, Q5, by electric capacity C2, C3, C4 forms direct current step pressure reducing, triode Q4, the base stage of Q5 connects described single-chip microcomputer, described on-off circuit comprises two groups of program control synchro switches, first group of program control synchro switch K1, K2 connects the output of described bridge rectifier, the input of electric capacity C2 and triode Q4, thus bridge rectifier and late-class circuit can be disconnected by first group of program control synchro switch, second group of program control synchro switch K3, K4 connects the output of electric capacity C2 and triode Q4, the input of electric capacity C3 and triode Q5, two groups of program control synchro switches are closed time different.Traditional bridge rectifier is constituted by a diode, and the utility model is broken the normal procedure, and forms bridge rectifier, controlled by SCM program by triode and D2, D3.
Connect the first output voltage detecting circuit 2 at the input of described first group of program control synchro switch, described output voltage detecting circuit is made up of resistance R7, R8, R9, and resistance R8 connects described single-chip microcomputer.The utility model also comprises stand-by power supply circuit, and described stand-by power supply circuit is made up of triode Q2, electric capacity C1, and the base stage of triode Q2 connects described single-chip microcomputer.When the undertension that bridge rectifier 1 exports, stored program controlled starts stand-by power supply circuit, with the deficiency of supplementary bridge rectifier, voltage is exported more stable.
The utility model realizes the effect of grammed switch Secure isolation power supply by multiple functional circuits such as singlechip chip control program, the program control rectification circuit of high voltage transistor, capacitor step-down programme control circut, program control bridge switch Secure isolation circuit, low frequency voltage stabilizing programme control circut, PWM pulse-width modulation circuits.Triode Q1, Q3 and diode D2, D3 tetra-transistors form program control rectification circuit.The course of work of its program control rectification is as follows: Q1, Q3, D2 and the D3 full-wave bridge rectifier circuit with traditional in principle is identical, and difference is, Q1 and Q3 is controlled by SCM program.And traditional bridge rectifier is four diodes forms open rectification, uncontrolled.
Electric capacity C2, C3, C4 and triode Q4, Q5 form condenser type direct-current voltage reducing circuit, low frequency voltage stabilizing programme control circut and PWM pulse-width modulation circuit.What K switch 1-K4 formed is bridge switch Secure isolation programme control circut.The course of work is described below: after rectifier circuit rectifies above, and circuit charges sporadically to electric capacity C2, and the voltage on C2 generally can design higher, such as: 100-300VDC.Concrete magnitude of voltage is determined by calculating according to the size of load.What electric capacity C2, C3 and triode Q4 formed is direct-current voltage reducing circuit, carries out step-down by PWM pulse length modulation principle.Its pulse width is also controlled by B4, B5 by program.
The course of work of K1-K4 tetra-switches is: when K1 and K2 connects, K3 and K4 must close, and now, rectification circuit charges to electric capacity C2; When K1 and K2 closes, K3 and K4 can close, and also can close, and is generally be in closure state.Now, rectification circuit stops, to C2 charging, starting triode Q4 and Q5, being controlled the Kai Heguan of triode Q4 and Q5 by program by port B4 and B5, charges to respectively electric capacity C3 and C4 in the mode of PWM pulsewidth modulation.Due to now, K1 and K2 closes, so AC power circuit is above completely isolated, so DC power supply circuit is below Secure isolation.K switch 1 and K2, K3 and K4 are the switches that two groups of functions are different, and two groups of switches can close at no time simultaneously.K1-K4 switch according to the needs of application scenario can selective light lotus root, optoelectronic switch or relay etc.If selective relay, the life-span of relay and the harmony problem of operating frequency be considered.K1-K4 tetra-switches are also all controlled by SCM program, control respectively by VK1-VK4.Four switches can adopt relay system gauge tap, also can adopt light lotus root switch.
Q1, Q3 two triodes are the needs according to design (calculated) load, are controlled conducting and the closedown of two triodes by program by port B1 and B3.Wherein, triode Q2 and electric capacity C1 forms stand-by power supply circuit, is also controlled by port B2 by program.Resistance R7, R8, R9 form output voltage detecting circuit, are also controlled by port RC2 by program, when rectification circuit power output is inadequate, lucky when power supply zero crossing or supply voltage U1 are less than UO again, then start stand-by power supply circuit by program.Output voltage can be avoided like this to fluctuate excessive situation.Diode D1, with resistance R3, R4, R5 form voltage detection circuit, play time synchronism calibration effect, avoid single-chip microcomputer out of hand because of time irreversibility.
Below openly specific embodiment of the utility model is only; do not form the restriction to the utility model protection domain; for the utility model person of an ordinary skill in the technical field; do not departing under general idea prerequisite of the present utility model; according to technical solutions of the utility model do without the need to through the change of creative work and replacement, all should drop within protection domain of the present utility model.
Claims (6)
1. the safety control system of intelligent air conditioner, comprises indoor set and off-premises station, and described indoor set is provided with indoor master control borad, and described off-premises station is provided with outdoor master control borad and frequency conversion plate, frequency conversion plate is arranged IGBT module driver element, communication unit with outdoor master control borad, is characterized in that: described outdoor master control borad comprises the power circuit connecting civil power, and described power circuit comprises bridge rectifier, single-chip microcomputer, also comprise condenser type program controlled hypertension circuit, on-off circuit, described bridge rectifier is by triode Q1, Q3 and diode D2, D3 forms, triode Q1, the base stage of Q3 connects single-chip microcomputer, and described condenser type program controlled hypertension circuit comprises electric capacity C2, C3, C4 and triode Q4, Q5, by electric capacity C2, C3, C4 forms direct current step pressure reducing, triode Q4, the base stage of Q5 connects described single-chip microcomputer, and described on-off circuit comprises two groups of program control synchro switches, first group of program control synchro switch K1, K2 connects the output of described bridge rectifier, the input of electric capacity C2 and triode Q4, thus bridge rectifier and late-class circuit can be disconnected by first group of program control synchro switch, second group of program control synchro switch K3, K4 connects the output of electric capacity C2 and triode Q4, the input of electric capacity C3 and triode Q5 is closed when two groups of program control synchro switches are different.
2. the safety control system of intelligent air conditioner according to claim 1, is characterized in that: connect frequency conversion plate IGBT module driver element at the output of described power circuit.
3. the safety control system of intelligent air conditioner according to claim 2, is characterized in that: described indoor master control borad is connected with described outdoor master control borad communication.
4. the safety control system of the intelligent air conditioner according to claim 1 or 2 or 3, it is characterized in that: connect the first output voltage detecting circuit at the input of described first group of program control synchro switch, described output voltage detecting circuit is made up of resistance R7, R8, R9, and resistance R8 connects described single-chip microcomputer.
5. the safety control system of intelligent air conditioner according to claim 4, is characterized in that: also comprise stand-by power supply circuit, and described stand-by power supply circuit is made up of triode Q2, electric capacity C1, and the base stage of triode Q2 connects described single-chip microcomputer.
6. the safety control system of intelligent air conditioner according to claim 4, is characterized in that: also comprise the voltage detection circuit for time synchronism calibration, and described voltage detection circuit is made up of diode D1, resistance R3, R4, R5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875358.9U CN205079401U (en) | 2015-11-05 | 2015-11-05 | Safe control system of intelligence air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875358.9U CN205079401U (en) | 2015-11-05 | 2015-11-05 | Safe control system of intelligence air conditioner |
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| Publication Number | Publication Date |
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| CN205079401U true CN205079401U (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520875358.9U Expired - Fee Related CN205079401U (en) | 2015-11-05 | 2015-11-05 | Safe control system of intelligence air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299835A (en) * | 2015-11-05 | 2016-02-03 | 顺德职业技术学院 | Safety control system of intelligent air conditioner |
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2015
- 2015-11-05 CN CN201520875358.9U patent/CN205079401U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299835A (en) * | 2015-11-05 | 2016-02-03 | 顺德职业技术学院 | Safety control system of intelligent air conditioner |
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| Date | Code | Title | Description |
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| 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: 20160309 Termination date: 20191105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |