CN101270907B

CN101270907B - Air conditioner controller capable of implementing double energy-saving function

Info

Publication number: CN101270907B
Application number: CN200810028100XA
Authority: CN
Inventors: 黄涛; 徐林; 袁龙
Original assignee: FOSHAN ZHONGEWEI ELECTRONIC Co Ltd
Current assignee: FOSHAN ZHONGEWEI ELECTRONIC Co Ltd
Priority date: 2008-05-15
Filing date: 2008-05-15
Publication date: 2010-07-28
Anticipated expiration: 2028-05-15
Also published as: CN101270907A

Abstract

The invention particularly relates to a two-way energy-saving air-conditioning controller, which comprises a switching power source and a display driver circuit; wherein the switching power source consists of an input rectifier filter circuit, a switch changer IC1, a switching transformer, a feedback regulator, an absorption circuit, an output filter circuit and an input protection circuit, and the display driver circuit consists of an IC4. The input protection circuit is arranged between the input rectifier filter circuit and the switch changer IC1, wherein the switch changer IC1 is connected with the switching transformer to connect or disconnect the transformer, and is connected with the absorption circuit between the input rectifier filter circuit and the switch changer IC1; the switching transformer is connected with the output filter circuit; the feedback regulator is connected with the switch changer IC1 and the output filter circuit. The invention saves a lot of power for the user, and saves energy even in starting up the air conditioning.

Description

A kind of air-conditioner controller that can realize the binodal energy

Technical field

The present invention relates to a kind of air-conditioner controller, refer in particular to a kind of air-conditioner controller that can realize the binodal energy.

Background technology

Under the energy-saving and emission-reduction of country were called, a lot of electronic apparatus producers also all began to have moved, and have released the product of low-power consumption one after another.For electronic and electrical equipment, its energy resource consumption mainly comprises power consumption under the duty and the power consumption under the holding state, and both are about 75% and 25% respectively at shared ratio.Power consumption under the duty can be considered people's work and the normal need of living, nonetheless, industry is also being continually developed the solution of upgrading advanced technology, improve the power-efficient under the duty, the just more effective energy that is to use, by comparison, not pull out the energy consumption under the holding state almost completely be exactly a kind of waste of energy in supply socket.The air-conditioning industry center of gravity is put in always to and high power device energy-conservation on, as compressor, electrical heating etc., and the power consumption of air-conditioner controller is ignored by people always, and work as the power consumption of air-conditioner under holding state is exactly the stand-by power consumption of air-conditioner controller, and at present on air-conditioner controller used power supply all by transformer-supplied, the transformer bodily form is big, weight is big, brought a lot of inconvenience to live when giving transportation, its power consumption under holding state has the power consumption about 3 watts, and this fully also is a kind of waste of electric energy.Does and how open state guarantee promptly can satisfy user's requirement, consumption that again can saves energy?

At above problem, the present invention can effectively reduce the power consumption of air-conditioner controller at holding state, has reduced the power consumption of controller when starting shooting simultaneously, and has reduced the weight issue of controller, has improved the reliability of air-conditioner controller simultaneously.

Summary of the invention

The problem of big, the reliability decrease of loss power when the objective of the invention is to overcome existing air-conditioner controller standby and during start, thus provide a kind of can realize binodal can air-conditioner controller.

For achieving the above object, technical scheme provided by the invention is:

(1) by the input rectifying filter circuit; switch converters IC1; switch transformer; the feedback regulation device; absorb circuit; the Switching Power Supply that output filter circuit and input protection circuit are formed is powered to controller; between input rectifying filter circuit and switch converters IC1, be connected into input protection circuit; switch converters IC1 links to each other with switch transformer; the break-make that is used for control transformer; between switch converters IC1 and switch transformer, link to each other with described absorption circuit; switch transformer links to each other with described output filter circuit, and described feedback regulation device links to each other with output filter circuit with switch converters IC1 respectively.

(2) form the driving display circuit by IC4, the DA of IC4, CLK, STB mouth link to each other with the single-chip processor i/o mouth by resistance R 9, R10, R11 respectively, simultaneously link 5V with pull-up resistor R15, R16, R17, link to each other with filter capacitor C12, C13, C14 simultaneously, the COM1 of IC4, COM2, COM3, COM4, COM5, SEG1, SEG2, SEG3, SEG4, SEG5, SEG6, SEG7, SEG8, SEG9, SEG10 link to each other with display board.

Two resistance R 1 after described input protection circuit unit comprises a NTC resistance and is connected on this resistance and R2.

Described absorption circuit unit comprises that a diode D5 reaches continuous resistance R 3 and the capacitor C 5 of diode D5 therewith.

Described output filter circuit unit comprises a commutation diode D7 and is parallel to the capacitor C 7 of this commutation diode D7, and filter capacitor C8, C9 behind the connection commutation diode D7, links to each other with described feedback regulation device behind filter capacitor C8, C9.

Described feedback regulation device comprises the adjustable shunting a reference source of three ends IC3, photoelectrical coupler IC2, three ends are adjustable, and shunting a reference source IC3 reference edge links to each other with output filter circuit by R7, three ends are adjustable, and shunting a reference source IC3 negative electrode links to each other with photoelectrical coupler IC2, resistance R 6, link to each other with output filter circuit by resistance R 5 again, R8 is parallel to anode and the reference edge of the adjustable shunting a reference source of three ends IC3, and the colelctor electrode of photoelectrical coupler IC2 is connected to switch converters.

Described driving display circuit unit comprises IC4, and it is by pull-up resistor R15, R16, R17, and current-limiting resistance R9, R10, R11, filter capacitor C12, C13, C14 form.

Beneficial effect of the present invention is: make its air-conditioner controller realize the binodal energy, power attenuation is less than 1 watt when the air-conditioner standby, when start, also can reduce the power consumption of air-conditioner controller to the control that shows, use the air-conditioner controller of this binodal energy, behind remote-control closedown, air-conditioner is in holding state, and the power of loss is less than 1 watt, for the user has saved many electric energy, and when start, also can save electric energy.Compare with former use transformer-supplied, external form and weight have all reduced, and make transportation more convenient, and have improved the automatically controlled reliability of air-conditioning.

Four, description of drawings

Fig. 1 is circuit control principle figure;

Fig. 2 is the switching power circuit schematic diagram;

Fig. 3 is the display driver circuit schematic diagram

Five, the specific embodiment

1.1 the formation of present embodiment circuit control principle (referring to Fig. 1,2,3):

Include power circuit and drive display circuit; wherein, (1) power circuit mainly includes input rectifying filter circuit, switch converters IC1, switch transformer, feedback regulation device, absorbs the voltage-stabilized power supply that circuit, output filter circuit and input protection circuit form and power to controller.Between input rectifying filter circuit and switch converters IC1, be connected into input protection circuit; switch converters IC1 links to each other with switch transformer; the break-make that is used for control transformer; between switch converters IC1 and switch transformer, link to each other with described absorption circuit; switch transformer links to each other with described output filter circuit, and described feedback regulation device links to each other with output filter circuit with switch converters IC1 respectively.Two resistance R 1 after described input protection circuit unit comprises a NTC resistance and is connected on this resistance and R2.Described absorption circuit unit comprises that a diode D5 reaches continuous resistance R 3 and the capacitor C 5 of diode D5 therewith.Described output filter circuit unit comprises a commutation diode D7 and is parallel to the capacitor C 7 of this commutation diode D7, and filter capacitor C8, C9 behind the connection commutation diode D7, links to each other with described feedback regulation device behind filter capacitor C8, C9.Described feedback regulation device comprises the adjustable shunting a reference source of three ends IC3, photoelectrical coupler IC2, three ends are adjustable, and shunting a reference source IC3 reference edge links to each other with output filter circuit by R7, three ends are adjustable, and shunting a reference source IC3 negative electrode links to each other with photoelectrical coupler IC2, resistance R 6, link to each other with output filter circuit by resistance R 5 again, R8 is parallel to anode and the reference edge of the adjustable shunting a reference source of three ends IC3, and the colelctor electrode of photoelectrical coupler IC2 is connected to switch converters.(2) drive display circuit, described driving display circuit unit comprises IC4, the DA of IC4, CLK, STB mouth link to each other with the single-chip processor i/o mouth by resistance R 9, R10, R11 respectively, simultaneously link 5V with pull-up resistor R15, R16, R17, link to each other with filter capacitor C12, C13, C14 simultaneously, the COM1 of IC4, COM2, COM3, COM4, COM5, SEG1, SEG2, SEG3, SEG4, SEG5, SEG6, SEG7, SEG8, SEG9, SEG10 link to each other with display screen.The tradition control method drives, controls 8 bit shift register treatment S EG mouth segment encodes with 2 I/O with 5 I/O control of single-chip microcomputer COM interval scan.Display driver circuit of the present invention is three I/O only, and all peripheral devices that disperse are integrated into an integral body, save the I/O pin from designing, enhance productivity from producing, improve the quality of products from quality, save handling of goods and materials, economical with materials from the cost from managing.The design is connected with the digital interface that drives chip by main control chip, with control signal from the single-chip processor i/o mouth respectively by resistance R 9, R10, R11 again through filter capacitor C12, C13, C14 filtering again with DA, the CLK, the STB mouth that pass to IC4 after pull-up resistor R15, R16, R17 link to each other.Realize that all COM interval scans drive, the output of SEG mouth segment encode.

1.2 present embodiment power circuit control operation principle (referring to Fig. 2):

After the alternating current of electrical network 50HZ or 60HZ passes through input rectifying filter circuit D1, D2, D3, D4 rectification; carry out filtering by capacitor C 1, C2 again by resistance NTC; obtain level and smooth DC voltage and linked the elementary of transformer; R1, R2 by input protection circuit carries out linking to each other with switch converters after the dividing potential drop again by the DC voltage behind the rectifying and wave-filtering; voltage after partial and switch converters builtin voltage compare; exceed certain magnitude of voltage, enter the input overvoltage protection.

Switch converters IC1 links to each other with switch transformer; the break-make that is used for control transformer; between switch converters IC1 and switch transformer, link to each other with described absorption circuit; because when transformer is conducting to the shutoff switching at every turn; can produce a too high voltage; this too high voltage burns out IC1 inside easily; and have absorb circuit the time; too high voltage charges to capacitor C 5 by the diode D5 that absorbs circuit; at transformer once more during conducting; capacitor C 5 is gone out tele-release by resistance R 3, is circulating so always, has played the effect of protection IC1.

Switch transformer links to each other with described output filter circuit, described feedback regulation device with output filter circuit after signal feedback to switch converters can regulate the conducting and the shutoff of switch converters.Transformer secondary output output be the voltage of pulse, by commutation diode D7 the voltage commutation of pulse is become DC voltage, carry out filtering by C8, C9 again.Be connected with R5, the R7 of feedback regulation device again after the filtering, carry out dividing potential drop through the filtered voltage of C8, C9 by R7, R8, link the reference edge of IC3, and compare the electric current of regulating the IC3 negative electrode with the IC3 builtin voltage, the IC3 negative electrode links to each other with photoelectrical coupler IC2, the electric current that is the IC3 negative electrode is regulated the electric current of just having regulated by photoelectrical coupler IC2, the colelctor electrode of photoelectrical coupler IC2 links to each other with the feedback pin of switch converters IC1, and promptly the feedback regulation device is passed to switch converters IC1 with the signal of transformer secondary output.

See also shown in Figure 2, when air-conditioner is changed from the duty to the holding state, the power of air-conditioner controller from large to small, electric current by output filter circuit just diminishes, very little electric current just can satisfy the demand of air-conditioner controller at holding state, the R7 of feedback regulation this moment device, the reference voltage terminal that is connected to IC3 after the R8 dividing potential drop has guaranteed it is the voltage of 2.5V always, be exactly to have guaranteed that the voltage of output is stable voltage simultaneously, but the electric current by IC3 negative electrode and photoelectrical coupler diminishes, photoelectrical coupler passes to switch converters IC1 with current signal, switch converters IC1 control reduces the turn-on and turn-off number of times of switch transformer, reduced the energy loss in the turn-on and turn-off process, improve the efficient of air-conditioner controller under holding state, also just reduced the power attenuation under the air-conditioner controller holding state.

Claims

One kind can realize binodal can air-conditioner controller, it is characterized in that:

(1) by the input rectifying filter circuit, switch converters IC1, switch transformer, the feedback regulation device, absorb circuit, the Switching Power Supply that output filter circuit and input protection circuit are formed is given controller MCU power supply, between input rectifying filter circuit and switch converters IC1, be connected into input protection circuit, switch converters IC1 links to each other with switch transformer, the break-make that is used for the gauge tap transformer, between switch converters IC1 and switch transformer, link to each other with described absorption circuit, switch transformer links to each other with described output filter circuit, and described feedback regulation device links to each other with output filter circuit with switch converters IC1 respectively;

(2) form the driving display circuit by indicating controller IC4, the DA of indicating controller IC4, CLK, STB mouth link to each other with the I/O mouth of controller MCU by resistance R 9, R10, R11 respectively, be connected to the power supply of 5V voltage simultaneously respectively by pull-up resistor R15, R16, R17, link to each other with filter capacitor C12, C13, C14 simultaneously, the COM1 of indicating controller IC4, COM2, COM3, COM4, COMM5, SEG1, SEG2, SEG3, SEG4, SEG5, SEG6, SEG7, SEG8, SEG9, SEG10 link to each other with display board.
2. as claimed in claim 1 a kind of can realize binodal can air-conditioner controller, it is characterized in that: two resistance R 1 after described input protection circuit comprises a NTC resistance and is connected on this resistance and R2.
3. a kind of air-conditioner controller that can realize the binodal energy as claimed in claim 1 is characterized in that: described absorption circuit comprises that a diode D5 reaches continuous resistance R 3 and the capacitor C 5 of diode D5 therewith.
4. a kind of air-conditioner controller that can realize the binodal energy as claimed in claim 1, it is characterized in that: described output filter circuit comprises a commutation diode D7 and is parallel to the capacitor C 7 of this commutation diode D7, and filter capacitor C8, C9 behind the connection commutation diode D7, behind filter capacitor C8, C9, link to each other with described feedback regulation device.
5. a kind of air-conditioner controller that can realize the binodal energy as claimed in claim 1, it is characterized in that: described feedback regulation device comprises the adjustable shunting a reference source of three ends IC3, photoelectrical coupler IC2, three ends are adjustable, and shunting a reference source IC3 reference edge links to each other with output filter circuit by resistance R 7, three ends are adjustable shunting a reference source IC3 negative electrode respectively with photoelectrical coupler IC2, resistance R 6 links to each other, and be connected to resistance R 5 one ends through photoelectrical coupler IC2 and resistance R 6, resistance R 5 other ends link to each other with output filter circuit, resistance R 8 is parallel to anode and the reference edge of the adjustable shunting a reference source of three ends IC3, and the colelctor electrode of photoelectrical coupler IC2 is connected to switch converters IC1.