CN200990005Y - Air conditioner starting control circuit - Google Patents
Air conditioner starting control circuit Download PDFInfo
- Publication number
- CN200990005Y CN200990005Y CN 200620044576 CN200620044576U CN200990005Y CN 200990005 Y CN200990005 Y CN 200990005Y CN 200620044576 CN200620044576 CN 200620044576 CN 200620044576 U CN200620044576 U CN 200620044576U CN 200990005 Y CN200990005 Y CN 200990005Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- cpu
- electric capacity
- connects
- relay
- 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
Links
Images
Abstract
The utility model relates to an air-conditioning starting control circuit, comprising a drive circuit of semiconductor switching element, a CPU, a starting-finishing detecting circuit, a second capacitor, a first capacitor, a zero-crossing detecting circuit, a contactor drive circuit, a relay and a relay drive circuit, wherein, a semiconductor switching element arranged inside the drive circuit of the semiconductor switching element is connected with the main winding of the compressor in series, thus forming a return circuit with a power, the starting-finishing detecting circuit is connected with the CPU, the CPU is connected with the drive circuit of the semiconductor switching element, a capacitor differential pressure detecting circuit arranged on the first capacitor and the second capacitor is connected with the CPU and the power circuit, the zero-crossing detecting circuit is connected with the CPU, the contactor drive circuit is connected with the CPU, the contactor in the contactor drive circuit is arranged in the return circuit formed by the main winding of the compressor and the power, a relay switch arranged in the relay drive circuit is connected with the second capacitor in series and connected with the first capacitor in parallel. By the air-conditioning starting control circuit of the structure, the impact current when starting the air conditioner is limited to 2-3 times of the rate current.
Description
Technical field
The utility model relates to a kind of ACON Air Conditioning On control circuit, specifically, is a kind of when ACON Air Conditioning On, and the working current when reducing compressor start can be kept the required torsion of starting simultaneously, the control circuit that dash current diminishes when making compressor start.
Background technology
Fig. 1 is the electrical structure synoptic diagram of common air-conditioning compressor.As shown in the figure, the direct and AC power Vac formation loop of the main winding of compressor of air conditioner M.Be provided with power switch K in this loop, be generally contactor or high power relay.Behind the auxiliary winding series capacitance C1, constitute the loop with AC power Vac.AC power Vac can choose according to the compressor of different rated voltages.Adopt the common air-conditioning of said structure, the current status when starting and operation as shown in Figure 2.The dash current that A1 represents among the figure when being the common air-conditioning starting, the rated current that A2 represents when being the common air-conditioning operation.The 6-8 of the value of rated current A2 doubly when the value of dash current A1 generally all reached operation during starting, electrical network is produced impact and pollution: in the moment of starting, line voltage often has drop in short-term, and other electrical equipment that are connected in parallel on the same electrical network are exerted an influence, when serious even cause tripping operation.This inrush current does not meet the environmental requirement to electrical network such as many countries such as Australia.
Smooth-going in order to realize that air-conditioner temperature is regulated, temperature fluctuation is little, and convertible frequency air-conditioner arises at the historic moment.Some air-conditionings do not have big dash current after adopting converter technique during starting.That is to say that the convertible frequency air-conditioner technology has also solved the big problem of ACON Air Conditioning On electric current.But convertible frequency air-conditioner cost height, technical sophistication causes reliability to reduce because components and parts increase in a large number.Therefore, adopt only excessive this technical matters of dash current when solving ACON Air Conditioning On of converter technique, the specific aim that just seems is not strong, poor effect.Moreover many occasions do not need frequency conversion function, use convertible frequency air-conditioner can cause aspect wastes such as function in this case in order to reduce inrush current.And in the market, most air-conditioning does not also possess frequency conversion function, all belongs to the air-conditioning of aforementioned across-the-line starting, still has the excessive problem of inrush current.
The utility model content
The purpose of this utility model is, a kind of ACON Air Conditioning On control circuit is provided, when overcoming existing ACON Air Conditioning On dash current excessive, electrical network produced the technical matters of impacting and polluting.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of ACON Air Conditioning On control circuit comprises compressor, first electric capacity and power circuit, after the auxiliary winding of compressor is connected in series first electric capacity, constitutes the loop with power supply; It is characterized in that this control circuit also comprises: the semiconductor switch device driving circuit, the semiconductor switch device in it after the main winding of compressor is connected in series, constitutes the loop with power supply; CPU links to each other with described semiconductor switch device driving circuit; Testing circuit is finished in starting, links to each other with CPU; Second electric capacity; The electric capacity pressure differential detection circuit that described first electric capacity and second electric capacity are provided with, this circuit links to each other with CPU and power circuit; Zero cross detection circuit links to each other with CPU; Contactor drive circuit links to each other with CPU; In the main winding that contactor in it is located at compressor and the loop of power supply formation; Relay and driving circuit thereof, the relay switch that is provided with in it is connected in series described second electric capacity, and is in parallel with first electric capacity; When ACON Air Conditioning On, relay switch is in parallel with first electric capacity with second electric capacity; When starting was finished testing circuit and detected air-conditioning and be in running status, relay broke second electric capacity from total system.
Adopt above-mentioned ACON Air Conditioning On control circuit, when ACON Air Conditioning On, semiconductor switch device carries out copped wave to the voltage that is added on the compressor, and continue to increase conduction angle, make the voltage that is added on the compressor slowly rise, operating voltage when the reduction compressor has just started, dash current diminishes when making compressor start; In starting process, strengthen the starting capacitance capacity of compressor simultaneously, increase the starting torque of compressor, compressor can easierly be started, further reduced starting current.And after ACON Air Conditioning On finishes, whole starting attachment device is bypassed, guarantee that ACON Air Conditioning On finishes after, its electrical structure is the same with not installing when starting attachment device.
Described power circuit comprises decompression capacitor, anti-surge resistance and two half-wave rectifying circuits; Anti-surge resistance one end is through the live wire of decompression capacitor connection power supply, and the other end also connects first half-wave rectifying circuit and second half-wave rectifying circuit.The utility model has adopted above-mentioned capacitance decompression mode, output-5V and+24V two-way direct current, its advantage is that volume is little, cost is low, is suitable in the not too big occasion of power.
Comprise first commutation diode and second commutation diode respectively in described two half-wave rectifying circuits; Described power circuit also comprises a mu balanced circuit, and the two ends of mu balanced circuit connect first commutation diode and second commutation diode respectively.
A described mu balanced circuit cut-off protection circuit in parallel.Because relay is work when starting only, all the other time power consumptions will all be born by stabilivolt, cause serious heating, thus also comprise a breaking circuit in this power circuit, to avoid heating and protection stabilivolt.
Described power circuit is depressed into CPU through the first half-wave rectifying circuit output DC, and this positive polarity connects the zero line of described power supply.For the 5V circuit of CPU and peripheral circuit power supply adopt anodal connecting to neutral line just-5V output, mainly be to consider to avoid the 4th quadrant of difficulty of controllable silicon drive ratio, reduce current sinking.
Contactor drive circuit comprises a bidirectional triode thyristor, and this controllable silicon connects CPU through driving resistor, can directly be driven by CPU.
Described controllable silicon two ends also connect a RC circuit, and silicon controlled one end connects contactor, and the other end connects zero-power line.The RC circuit can prevent that external interference from causing false triggering.
Described relay drive circuit comprises trigger triode behind a preceding trigger triode and, the collector of the base stage of back trigger triode trigger triode before resistance connects, the collector connection contactor of back trigger triode.Trigger triode conducting before at first driving with high level, preceding trigger triode drives back trigger triode conducting again, makes voltage directly be added to the relay two ends, the relay adhesive.
Electric capacity pressure differential detection circuit comprises: sample resistance, and an end links to each other with second electric capacity; Commutation diode and voltage stabilizing diode are attempted by the other end of described sample resistance; The negative voltage driving triode, its emitter connects zero-power line, and base stage connects diode; Power supply transistor, its base stage connect commutation diode and connect the collector of negative voltage driving triode through resistance, and its collector connects CPU.This circuit connects second capacitor sampling by sample resistance, if positively charged is pressed, then drives the power supply transistor conducting by sample resistance, commutation diode, and output low level is given CPU; If electronegative, then drive the conducting of negative voltage driving triode by sample resistance, voltage stabilizing diode, cause the power supply transistor conducting again, also output low level is given CPU; If there is not pressure reduction, then power supply transistor, negative voltage driving triode all end, and the output high level is given CPU.
Description of drawings
Fig. 1 is the electrical structure synoptic diagram of common air-conditioning;
Current status synoptic diagram when Fig. 2 moves for common air-conditioning;
Current status synoptic diagram when Fig. 3 is an operation of air conditioner of the present utility model;
Fig. 4 is the circuit block diagram of ACON Air Conditioning On control circuit of the present utility model;
Fig. 5 is CPU partial circuit figure of the present utility model;
Fig. 6 is a power unit circuit diagram of the present utility model;
Fig. 7 is contactor drive circuit figure of the present utility model;
Fig. 8 is controllable silicon drive circuit figure of the present utility model;
Fig. 9 is relay drive circuit figure of the present utility model;
Figure 10 is zero passage detection partial circuit figure of the present utility model;
Figure 11 finishes the test section circuit diagram for starting of the present utility model;
Figure 12 is first, second electric capacity pressure differential detection partial circuit figure of the present utility model.
Embodiment
According to Fig. 3 to Figure 12, provide preferred embodiment of the present utility model, and described in detail below, enable to understand better function of the present utility model, characteristics.
Fig. 4 is the circuit block diagram of ACON Air Conditioning On control circuit of the present utility model.As shown in the figure, the ACON Air Conditioning On control circuit comprises CPU control module, zero passage detection module, power circuit, controllable silicon driver module, relay driving module and contactor driver module.The zero line N that connects power supply Vac behind the main winding r of the compressor of air conditioner M end serial connection great power bidirectional controllable silicon Q, main winding other end c end promptly with an end of auxiliary winding handing-over, connects the live wire L of power supply Vac after the serial connection K switch.Auxiliary winding s end serial connection capacitor C 1 back connects the zero line N of power supply Vac, and capacitor C 2 is connected in parallel between the zero line N of auxiliary winding s end and power supply Vac by relay J 1 and capacitor C 1.Relay J 1 is the relay of a single-pole double-throw (SPDT), its normally closed interlock NC controllable silicon Q in parallel two ends, and normally open contact NO is connected between the zero line N of capacitor C 2 and power supply.
In the starting process, the movable contact of relay J 1 is connected with normally open contact NO, and capacitor C 2 is in parallel with former starting capacitance C1, has increased starting torque.Controllable silicon Q is under the driving of copped wave drive signal, main winding voltage to compressor M carries out copped wave, and strengthens conduction angle gradually, and the voltage that is added on the compressor M main winding also rises gradually, compressor smooth start this moment, dash current are limited between the 2-3 rated current doubly.The current status signal as shown in Figure 3.The starting-impact that B1 is limited by soft starter (surge) electric current, B2 are operation (specified) electric currents after starting is finished.After compressor start, electric current is during near rated current, illustrates that starting process finishes substantially.The movable contact of relay J 1 is beaten to normally closed interlock NC, capacitor C 2 is disconnected, simultaneously with controllable silicon Q bypass.Can generate heat by preventing controlled silicon Q like this, make technology simple, do not need to set up heating radiator, device lifetime is long.Otherwise electric current will flow through from controllable silicon all the time, will produce meaningless thermal losses.
Fig. 5 is CPU partial circuit figure of the present utility model.As shown in the figure, this example adopts the PIC16C505 model chip U1 of MICROCHIP, is characterized in that cost is low, and antijamming capability is strong.Also can adopt the singlechip chip of other brands, model.U2 is the HT7033A low-voltage chip that resets, and further strengthens the antijamming capability of whole system; Also can use the watchdog chip of other brands and model instead.
Fig. 6 is a power unit circuit diagram of the present utility model.As shown in the figure, power circuit comprises decompression capacitor C6, anti-surge resistance R 16 and two half-wave rectifying circuits.Anti-surge resistance R 16 1 ends are through the live wire L of decompression capacitor C6 connection power supply, and the other end also connects first half-wave rectifying circuit and second half-wave rectifying circuit.Comprise commutation diode D1 and commutation diode D2 in two half-wave rectifying circuits respectively.Power circuit also comprises a mu balanced circuit that is composed in series by stabilivolt DZ1, DZ4 and DZ6, and the two ends of mu balanced circuit connect commutation diode D1 and commutation diode D2 respectively.Stabilivolt DZ1 stablizes-5V voltage, and stabilivolt DZ4 and stabilivolt DZ6 stablize+24V voltage, and it is in order to share power consumption that stabilivolt DZ4 and stabilivolt DZ6 series connection are used.A mu balanced circuit cut-off protection circuit also in parallel, this holding circuit is made up of triode Q2, triode Q5, resistance R 6, resistance R 7, resistance R 8, resistance R 23, resistance R 24, to avoid heating and protection stabilivolt.Wherein triode Q2 is connected on-the 5V loop, and conducting when the CPU I/O mouth that connects is sent high level drives triode Q5 conducting again, and general+24V voltage clamp arrives near 0V, and resistance R 6 can suppress the triode Q5 conducting surge current of moment, protection triode Q5.
This example capacitance decompression mode, output-5V and+24V two-way direct current, its advantage is that volume is little, cost is low, is suitable in the not too big occasion of power; Because the characteristic of capacity voltage dropping circuit output current and the direct proportional relation of capacitance, so this example has been selected the higher relay of the voltage of 24V for use, electric current is less under the same power, can reduce the capacity of decompression capacitor.Decompression capacitor C6 has been connected in series anti-surge resistance R 16 among the figure, produces positive and negative two-way voltage respectively through two half-wave rectifying circuits of D2, D1.Capacitor C 11, capacitor C 12, capacitor C 4 are filter capacitors.
+ 24V specializes in relay and uses, for the 5V circuit of CPU and peripheral circuit power supply adopt anodal connecting to neutral line just-5V output, mainly be to consider to avoid the 4th quadrant of difficulty of controllable silicon drive ratio, adopt positive supply certainly and adopt suitable driving parameters also to be fine that just current sinking more greatly.
Power supply also can adopt transformer rectifying and wave-filtering or small-power switching power-supply, and just cost is high; Output also can only use one the tunnel, and shared 5V of relay or employing AC relay are directly used civil power.
Fig. 7 is contactor drive circuit figure of the present utility model.As shown in the figure, contactor drive circuit comprises a bidirectional triode thyristor Q3, and this controllable silicon Q3 connects CPU through driving resistor R20.Controllable silicon Q3 two ends also connect a RC circuit, prevent that external interference from causing false triggering.The end of controllable silicon Q3 connects contactor, and the other end connects zero-power line N.What this example was selected for use is the bidirectional triode thyristor of the Z0405MF 4A/600V of ST company, can be according to the big or small controllable silicon of selecting electric current not wait of actual contact device; This controllable silicon is the miniwatt controllable silicon, and drive current need only several milliamperes, so can directly be driven by CPU, this transwitch also can be relay or solid-state relay.
Fig. 8 is a controllable silicon drive circuit, controllable silicon Q1 selects the two-way high-power silicon controlled rectifier of BTA series of ST company for use, because the drive current that powerful controllable silicon needs is also bigger, needs tens even hundreds of milliampere, the I/O of CPU can't provide so big electric current, is used to drive controllable silicon so increased triode Q4; The pulse signal that CPU sends drives controllable silicon Q1 via Q4 the compressor main winding is carried out copped wave; Controllable silicon also can drive with the isolation drive optocoupler of special use, as MOC302X series, particularly under the situation that adopts insulating power supply; Controllable silicon also can be other high-power semiconductor switch device and be equipped with the corresponding driving circuit.
Fig. 9 is relay drive circuit figure of the present utility model.Described relay drive circuit comprises trigger triode Q8 behind a preceding trigger triode Q9 and, the collector of the base stage of back trigger triode Q8 trigger triode Q9 before resistance R 4 connects, the collector connection contactor of back trigger triode Q8.
The relay line bag that present embodiment is selected for use is the 24V direct current.Because CPU is operated in the 5V power supply of another road, can't directly drive relay, so at first drive triode Q9 conducting with high level, triode Q9 drives triode Q8 conducting again, makes the 24V electricity directly be added to relay J 1 two ends, relay J 1 adhesive; Reverse absorption diode when diode D1 is relay J 1 shutoff, protection triode Q8; Relay can adopt different electric pressures, and the power supply that is equipped with relevant voltage gets final product; Also can be relay or the contactor that exchanges, adopt the circuit of similar Fig. 7 to drive with the miniwatt controllable silicon.
Figure 10 is zero passage detection partial circuit figure of the present utility model, and is very simple, the CPU I/O mouth level upset that resistance R 13 is connected, and CPU can judge zero-crossing timing in view of the above, thereby provides benchmark opportunity for copped wave; I/O mouth inside that it should be noted that the used CPU of this example comprises perfect bilateral diode clamper protection, if use other model C PU to improve protection, and then necessary external protection diode; This circuit is because threshold voltage of judging and non-zero voltage but the level criterion value of CPU I/O mouth, than the low 2～3V of zero line,, generally can ignore so on judging very little error is arranged, also can adopt voltage comparator to do accurately relatively, just cost is high.
Figure 11 finishes the test section circuit diagram for starting of the present utility model.Shift to an earlier date when controllable silicon copped wave conduction angle progressively strengthens, compressor rotary speed progressively improves, and when effective voltage was near full voltage on the main winding, the starting of compressor just was through with substantially, and this moment, controllable silicon was in almost completely conducting state; That is to say that as long as detect the controllable silicon both end voltage, when just r was lower than certain value to the voltage of N zero line, starting had been finished with regard to decidable.The circuit of Figure 11 has adopted way comparatively cleverly, has used device seldom just can detect the voltage of alternating current both direction simultaneously, wherein after commutation diode DZ2, the DZ3 differential concatenation, can all detect bi-directional voltage; Resistance R 14, R15 then connect the I/O mouth of CPU respectively, and these two I/O mouths are operated in the state of an input of an output, and every the half cycle conversion once, CPU detects present located positive-negative half-cycle situation according to zero cross detection circuit and changes; The resistance of resistance R 14, R15 also is different, and this is that the high and high threshold voltage that changes judgement when hanging down is different because I/O mouth level hangs down commentaries on classics; The resistance of choose reasonable stabilivolt voltage and several resistance makes CPU make 2 disconnections of second capacitor C, controllable silicon bypass at the most appropriate pilot relay on opportunity, finishes starting; This circuit also can be made two independently voltage detecting circuits, detects the voltage of positive-negative half-cycle respectively, and just complex structure is a little.
Figure 12 is first, second electric capacity pressure differential detection partial circuit figure of the present utility model.Electric capacity pressure differential detection circuit comprises: sample resistance R11, an end links to each other with second capacitor C 2.Commutation diode DZ5 and voltage stabilizing diode D4 are attempted by the other end of described sample resistance R11.Negative voltage driving triode Q6, its emitter connects zero-power line N, and base stage connects voltage stabilizing diode D4.Power supply transistor Q7, its base stage connects commutation diode DZ5 and connects the collector of negative voltage driving triodes through resistance R 9, and its collector connects CPU.This circuit connects second capacitor sampling by R11, if positively charged is pressed, then drives the Q7 conducting by R11, DZ5, and output low level is given CPU; If electronegative, then drive the Q6 conducting by R11, D4, cause the Q7 conducting again, also output low level is given CPU; If there is not pressure reduction, then Q6, Q7 end, and the output high level is given CPU.Also can constitute this pressure differential detection circuit, but need stable positive and negative symmetrical power supply with comparer; In view of this example does not adopt such power supply, so comparer of no use; The testing circuit of the discrete component formation that adopts now, simple and reliable, with low cost.
Consult Fig. 5 to Figure 12 once more, the annexation of each several part circuit is described.The chip U1 of CPU has eight pins.Pin 11 meets power supply VCC, pin 18 ground connection.Pin 12 connects the RELAY end of relay drive circuit, and pin 13 connects the MAIN end of controllable silicon drive circuit.Pin 14 connects the low-voltages chip U2 that resets.Pin 15 connects the ZERO end of zero cross detection circuit 1.Pin 16, pin 17 connect P-FINISH end and the N-FINISH end that testing circuit 3 is finished in starting.
The front provides the description to preferred embodiment, so that any technician in this area can use or utilize the utility model.To this preferred embodiment, those skilled in the art can make various modifications or conversion on the basis that does not break away from the utility model principle.For example, semiconductor switch device both can be an individual devices, also can be two or more parallel connections and installed flows resistance additional and use, to adapt to powerful type.Relay both can be an individual devices, also can be two or more in parallel uses, to adapt to powerful type.Relay promptly can be one one often open, a normally closed relay, also can be two single-contact relays.Described relay promptly can be a standard machinery formula relay, also can be solid-state relay, perhaps replaces with high-power semiconductor switch devices such as controllable silicon, MOSFET, MOSFET, and its essence is can be by the switch of CPU control; Also can contactor under large-power occasions.Be that every simple, equivalence of doing according to the claims and the description of the utility model application changes and modification, all fall into the claim protection domain of the utility model patent.
Claims (9)
1, a kind of ACON Air Conditioning On control circuit comprises compressor, first electric capacity and power circuit, after the auxiliary winding of compressor is connected in series first electric capacity, constitutes the loop with power supply; It is characterized in that this control circuit also comprises:
The semiconductor switch device driving circuit, the semiconductor switch device in it after the main winding of compressor is connected in series, constitutes the loop with power supply;
CPU links to each other with described semiconductor switch device driving circuit;
Testing circuit is finished in starting, links to each other with CPU;
Second electric capacity;
The electric capacity pressure differential detection circuit that described first electric capacity and second electric capacity are provided with, this circuit links to each other with CPU and power circuit;
Zero cross detection circuit links to each other with CPU;
Contactor drive circuit links to each other with CPU; In the main winding that contactor in it is located at compressor and the loop of power supply formation;
Relay and driving circuit thereof, the relay switch that is provided with in it is connected in series described second electric capacity, and is in parallel with first electric capacity; When ACON Air Conditioning On, relay switch is in parallel with first electric capacity with second electric capacity; When starting was finished testing circuit and detected air-conditioning and be in running status, relay broke second electric capacity from total system.
2, ACON Air Conditioning On control circuit as claimed in claim 1 is characterized in that, described power circuit comprises decompression capacitor, anti-surge resistance and two half-wave rectifying circuits; Anti-surge resistance one end is through the live wire of decompression capacitor connection power supply, and the other end also connects first half-wave rectifying circuit and second half-wave rectifying circuit.
3, ACON Air Conditioning On control circuit as claimed in claim 2 is characterized in that, comprises first commutation diode and second commutation diode respectively in described two half-wave rectifying circuits; Described power circuit also comprises a mu balanced circuit, and the two ends of mu balanced circuit connect first commutation diode and second commutation diode respectively.
4, ACON Air Conditioning On control circuit as claimed in claim 3 is characterized in that, a described mu balanced circuit cut-off protection circuit in parallel.
5, as claim 2 or 3 or 4 described ACON Air Conditioning On control circuits, it is characterized in that described power circuit is depressed into CPU through the first half-wave rectifying circuit output DC, this positive polarity connects the zero line of described power supply.
6, ACON Air Conditioning On control circuit as claimed in claim 1 is characterized in that, contactor drive circuit comprises a bidirectional triode thyristor, and this controllable silicon connects CPU through driving resistor.
7, ACON Air Conditioning On control circuit as claimed in claim 6 is characterized in that, described controllable silicon two ends also connect a RC circuit, and silicon controlled one end connects contactor, and the other end connects zero-power line.
8, ACON Air Conditioning On control circuit as claimed in claim 1, it is characterized in that, described relay drive circuit comprises trigger triode behind a preceding trigger triode and, the collector of the base stage of back trigger triode trigger triode before resistance connects, the collector of back trigger triode connects contactor.
9, ACON Air Conditioning On control circuit as claimed in claim 1 is characterized in that, electric capacity pressure differential detection circuit comprises:
Sample resistance, an end links to each other with second electric capacity;
Commutation diode and diode are attempted by the other end of described sample resistance;
The negative voltage driving triode, its emitter connects zero-power line, and base stage connects diode;
Power supply transistor, its base stage connect commutation diode and connect the collector of negative voltage driving triode through resistance, and its collector connects CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044576 CN200990005Y (en) | 2006-08-04 | 2006-08-04 | Air conditioner starting control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044576 CN200990005Y (en) | 2006-08-04 | 2006-08-04 | Air conditioner starting control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200990005Y true CN200990005Y (en) | 2007-12-12 |
Family
ID=38941041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044576 Expired - Fee Related CN200990005Y (en) | 2006-08-04 | 2006-08-04 | Air conditioner starting control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200990005Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072141A (en) * | 2011-02-23 | 2011-05-25 | 无锡和晶科技股份有限公司 | Control circuit capable of out-of-control prevention for compressor of refrigerator |
| CN104407185A (en) * | 2014-12-08 | 2015-03-11 | 赵伊苓 | Electric oscillating wave generator |
| CN110030709A (en) * | 2019-04-29 | 2019-07-19 | 广东美的制冷设备有限公司 | Drive control circuit, air conditioner, control method and computer readable storage medium |
-
2006
- 2006-08-04 CN CN 200620044576 patent/CN200990005Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072141A (en) * | 2011-02-23 | 2011-05-25 | 无锡和晶科技股份有限公司 | Control circuit capable of out-of-control prevention for compressor of refrigerator |
| CN104407185A (en) * | 2014-12-08 | 2015-03-11 | 赵伊苓 | Electric oscillating wave generator |
| CN110030709A (en) * | 2019-04-29 | 2019-07-19 | 广东美的制冷设备有限公司 | Drive control circuit, air conditioner, control method and computer readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102878651B (en) | Intelligent inverter air conditioner with low standby power | |
| CN201110615Y (en) | Zero-cross signal testing circuit of air conditioner controller as well as air conditioner | |
| CN101340185B (en) | Synchronous control method of 3 phase AC solid power controller | |
| CN102396150A (en) | Power circuit, and computer-readable recording medium containing a control program for power circuits | |
| CN202888081U (en) | AC contactor intelligent control apparatus with energy saving effect | |
| CN108377142A (en) | A kind of electronic switching circuit | |
| CN102262977A (en) | Drive circuit of AC contactor | |
| CN109510176A (en) | A kind of intelligent power module Drive Protecting Circuit | |
| CN102829553B (en) | High-power single-phase heat pump water heater start control device | |
| CN200990005Y (en) | Air conditioner starting control circuit | |
| CN110350584A (en) | Control method, control device, photovoltaic system and the storage medium of photovoltaic system | |
| CN113364360B (en) | ECM motor gear switching method | |
| CN202794915U (en) | Isolation-type zero standby power consumption circuit | |
| CN101539783B (en) | Automatic pumping controller | |
| CN202757272U (en) | Novel high-power single-phase heat pump water heater star control device | |
| CN203406776U (en) | DC power supply | |
| CN2812399Y (en) | Startup control circuit for air conditioner | |
| CN106602637B (en) | A kind of battery balanced channel adaptive polarity switching circuit | |
| CN201518467U (en) | Single-phase motor soft starter and air conditioner with same | |
| CN202649723U (en) | Novel self-start controller for use after power recovery of air conditioner | |
| CN203631410U (en) | Vacuum circuit breaker controlling circuit and vacuum circuit breaker controlling system | |
| CN204145324U (en) | A kind ofly change the circuit that wide region alternating current-direct current input voltage is DC low-voltage | |
| CN209267167U (en) | One kind turning off the power switch undelayed anti-surge circuit and Switching Power Supply | |
| CN105830302B (en) | Excess voltage protection and power-converting device with the excess voltage protection | |
| CN203722211U (en) | Phase break protection device used for railway vehicle emergency inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20110804 |