CN2641512Y - One-driving multiple ac frequency change air conditioner controllers - Google Patents
One-driving multiple ac frequency change air conditioner controllers Download PDFInfo
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- CN2641512Y CN2641512Y CN 03224371 CN03224371U CN2641512Y CN 2641512 Y CN2641512 Y CN 2641512Y CN 03224371 CN03224371 CN 03224371 CN 03224371 U CN03224371 U CN 03224371U CN 2641512 Y CN2641512 Y CN 2641512Y
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Abstract
The utility model is a frequency conversion air conditioner controller with one pulling to multiple alternating current, which composes a shell, an internal circuit board, a compressor electromotor, and a fan electromotor which are connected with each other, the circuit of which consists of a separated circuit, a main control circuit, a drive circuit and a current and voltage sampling circuit, the connecting relationship of which is that: the separated circuit is electrically connected with the main control circuit, the main control circuit is connected with the current and voltage sampling circuit and is connected with the drive circuit by the control signal line, the drive circuit is connected with an electromagnet valve and the four-way valve, and is respectively electrically connected with the compressor electromotor and the fan electro motor. The utility model has a strong universality, can match with the inner device of any existing frequency positioned control compressor, the connecting wire is less indoor or outdoor, and is simple, and convenient to install and maintain, so as to reduce the material cost. The utility model control compressor has a simple and effective frequency change method, has various protecting functions, make he operation is safer and more comfortable.
Description
(1) technical field
The utility model relates to the air-conditioner technical field, is meant that specifically a kind of one drags many AC frequency conversions air-conditioner controller.
(2) background technology
Present family expenses one drag changeable frequency air-conditioning to have following shortcoming: (1) because the difficulty of control technology is big and poor reliability, great majority all are single cold types; (2) because the control object is complicated, the indoor and outdoor controller is preparation specially all, and versatility is poor; (3) because versatility is poor, and the kind that manufacturer production goes out is few, and at user option kind is few, the sales volume and the output of changeable frequency air-conditioning dragged in restriction one, forms vicious circle, many troubles is provided for manufacturer production, installation and user's selection; (4) the indoor and outdoor controller is electrically connected complexity, trouble is installed, the cost height.
Existing one drags the control mode of changeable frequency air-conditioning to be: indoor controller and outdoor controller that exploitation is special-purpose, and between the two according to same communication protocol.Indoor controller is communicated by letter mutually with outdoor controller, and indoor controller mainly is responsible for setting controls such as operational mode, temperature, and outdoor controller mainly is responsible for the refrigerant flow control of each indoor set and the control of compressor frequency.So, under the situation about must mate simultaneously in indoor and outdoor, just can install and use.
(3) summary of the invention
The purpose of this utility model is exactly in order to solve above-mentioned the deficiencies in the prior art part, provides a kind of one to drag many AC frequency conversions air-conditioner controller.This controller is not change fully under the situation of (for can be general) at the existing frequency indoor set of producing of deciding, and a cover outdoor of exploitation drags changeable frequency air-conditioner controller, can use with indoor set coupling arbitrarily, improves versatility.
Described in the utility model a kind of one drags many AC frequency conversions air-conditioner controller, by shell and internal circuit board, compressor electric motor, fan electromotor interconnects composition, it is characterized in that, described circuit is by buffer circuit, governor circuit, drive circuit, current-voltage sampling circuit is formed, its interconnected relationship is, buffer circuit is electrically connected mutually with governor circuit, governor circuit is electrically connected mutually with current-voltage sampling circuit, and be connected with drive circuit by control signal wire, drive circuit is connected with magnetic valve, cross valve, and respectively with compressor electric motor, fan electromotor is electrically connected mutually.
In order to realize the utility model better, described governor circuit also is connected with temperature sensor and pressure-sensitive switch, and is connected with power supply with rectification circuit by electric source filter circuit.
The utility model compared with prior art has the following advantages and beneficial effect:
1. highly versatile of the present utility model, can with the supporting use of existing arbitrary fixed frequency air conditioner indoor set, the kind of air-conditioner is increased greatly, bring convenience for the production of air-conditioner, user's selection.
2. indoor and outdoor of the present utility model line is few, simple, brings convenience to installation and maintenance, has also lowered material cost.
3. the method for the frequency change of the utility model control compressor is simply effective, according to heat in the indoor signal/number of refrigeration compressor signal comes the judgement demand, realizes frequency conversion function.
4. various protections of the present utility model are complete; possess functions such as compressor exhaust temperature protection, system pressure protection, compressor time-delay startup in 3 minutes protection, AC under-voltage protection, overcurrent protection, power model protection, the protection of indoor evaporator anti-freeze, condenser high temperature protection, anti-cold wind protection, indoor evaporator high temperature protection, dormancy power-off protection, make operation safer, more comfortable.
(4) description of drawings
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 be the utility model in refrigeration mode, outdoor temperature is to starting and the schematic diagram of operation peak frequency restriction;
Fig. 3 be the utility model in heating mode, outdoor temperature is to starting and the schematic diagram of operation peak frequency restriction;
Fig. 4 is a defrost action schematic diagram of the present utility model;
Fig. 5 is circuit theory diagrams of the present utility model.
(5) specific embodiment
Below in conjunction with drawings and Examples, the utility model is done detailed description further.
As shown in Figure 1,1 to 2 split-type air conditioner air conditioner indoor machine 14 of constant speed and matching used remote controller thereof are installed in user's the not chummery arbitrarily, and off-premises station 21 is installed in user's outdoor environment, form one with indoor set and drag many control systems.Under the situation of getting rid of the restriction of off-premises station locus, can be connected with n platform indoor set in theory.Constant speed split-type air conditioner air conditioner indoor machine 14 outputed to five connecting lines that have of off-premises station originally, be respectively: compressor, blower fan, cross valve, public N line and power ground, wiring is installed considers for saving the connecting line cost and reducing, only get two signals of compressor and cross valve and be connected to off-premises station and control.The signal that 1 pair of indoor set 14 of isolated location is sent here carries out strong and weak electricity isolates, deliver to MCU Main Processing Unit 2 and carry out judgment processing, realize control corresponding: give magnetic valve or electric expansion valve driver element 15 as the output control signal, drive the ON/OFF of magnetic valve 16 or the aperture of regulating electric expansion valve 16, finally control cold medium flux, regulated temperature; The output control signal is given cross valve driver element 18, drives the ON/OFF of cross valve 19, realizes the switching of refrigerating/heating; Output signal to driven compressor unit IPM or IGBT module 7, adjust compressor 17 running frequencies (comprising shutdown), regulate cold medium flux, compressor 17 feeds back to MCU Main Processing Unit 2 with shell top temperature signal simultaneously, carries out thermal control; The output control signal is given outdoor fan driver element 12, opens, stops outdoor fan 13.The main effect of outdoor environment temperature sensor 10 is to experience outdoor environment temperature, and temperature signal is passed to MCU Main Processing Unit 2, protects the control of compressor; The main effect of outdoor coil pipe used temperature sensor 9 is the outdoor coil pipe used temperature of impression, and temperature signal is passed to MCU Main Processing Unit 2, and control defrosts; The main effect of compressor exhaust temperature sensor 10 is to experience compressor exhaust temperature, and temperature signal is passed to MCU Main Processing Unit 2, carries out the control of compressor air-discharging overtemperature protection.The main effect of pressure-sensitive switch 20 is a high and low pressure pressure of experiencing pipeline, and pressure signal is passed to MCU Main Processing Unit 2, carries out the control of the high and low pressure pressure protect of pipeline.The main effect of driver element IPM or IGBT module 7 provides the drive compression machine and uses; The effect of each driver element is that the light current control signal of MCU Main Processing Unit 2 is amplified, and drives corresponding forceful electric power device.Power filter 3 mainly is that civil power is carried out filtering; Rectification is to be direct current with AC rectification.The effect of PFC5 is to carry out power back-off.Current-voltage sampling 6 is current and voltage signals to be offered MCU Main Processing Unit 2 carry out electric current and voltage control.
As shown in Figure 5, realize that for the utility model one drags the concrete scheme of six split frequency conversions.Among the figure, IC1 is outdoor main control singlechip 89857, finishes used outdoor electrical part control, as IPM module, compressor, cross valve, and magnetic valve, fan electromotor; PC201 to PC212 is No. 12 photoelectrical coupler PC817, finishing the safety of indoor and outdoor machine communication isolates, guarantee the safety of control circuit, these photoelectrical couplers components and parts attached with it constitute telecommunication circuit, link to each other with compressor, the cross valve signal of 6 indoor sets respectively, gather indoor set information, finish complete machine control; RY201 to RY206 is 6 relays, and according to the indoor set information that collects, the switching of six way solenoid valves that decision links to each other with indoor set realizes the control of refrigerant flow by main control singlechip 89857; IC4 drives chip ULN2003A, in order to the control signal of main control singlechip 89857 outputs is amplified, with safe and reliable control six way solenoid valves; IC2 is an integrated stable voltage circuit, for main control singlechip 89857 provides 5V power supply; CN9 is a connector, is used to connect main control singlechip 89857 and IPM module, so that single-chip microcomputer is by IPM module controls compressor; IC3 is reset circuit of SCM KIA7042, and assurance air-conditioning safety is worked normally; CT1 is a current sense transformer, constitutes current detection circuit with D6, D7, four diode 1N4001 of D8, D9 and two diode 1N4148 of D10, D11, detects the electric current that off-premises station passes through, and guarantees the complete machine operate as normal; CN12, CN13, CN14, CN15 are used to connect temperature sensor (specification is 15 kilo-ohms); difference sensing chamber external condenser pipeline temperature, compressor exhaust temperature, outdoor environment temperature, compressor top temperature; give main control singlechip 89857; make main control unit control the off-premises station running status in real time, and compressor is carried out suitable protection according to temperature regime.
The concrete control model of present embodiment is as follows:
1. general defencive function: protection air-conditioner big electric current, high temperature, the high pressure that may do not occurred are damaged, freeze, heat, all effective under the dehumidifier, automatic mode.
(1) compressor exhaust temperature protection: when delivery temperature surpasses 105 ℃ and during less than 110 ℃; write down the operating frequency shelves of current compressor; and be the target frequency reducing with F1; if delivery temperature is lower than 90 ℃; then remove this restriction, but the highest frequency of later compressor operation is limited in than low 1 grade of the frequency of when protection record.If delivery temperature surpasses 10 minutes (F60S can be set in short-term) less than 95 ℃ duration, the maximum limit frequency rises one grade, up to reaching the FMAX that outdoor temperature limited at that time.If delivery temperature surpasses 110 ℃, compressor shutdown is lower than below 90 ℃ up to delivery temperature, again start.
(2) pressure protect function: when detecting pressure switch action and be in off-state and surpass 5 seconds; write down the operating frequency shelves of current compressor; and be the target frequency reducing with F1; if recovering the normal pressure switch closure, pressure surpasses 2min; then remove this restriction, but the highest frequency of later compressor operation is limited in than low 1 grade of the frequency of when protection record.If the pressure switch closing period surpasses 10min (F60S can be set in short-term), the maximum limit frequency rises one grade, up to reaching the FMAX that outdoor temperature limited at that time.Surpass 30s if the pressure switch action is in the off-state duration, compressor shutdown is up to the low 2min of suction temperature, start again.
(3) compressor time-delay started defencive function in 3 minutes: compressor is each must wait for 3 minutes before starting (in comprising that refrigeration mode or dehumidification mode and heating mode change mutually, but the nothing that powers on was for the first time protected in 3 minutes).Outdoor fan and compressor start simultaneously, but compressor stops, and outdoor fan must be delayed time and just be stopped in 30 seconds.
(4) AC under-voltage protection function: when voltage is lower than 190V and continued for 10 seconds, implement frequency limitation, when voltage is higher than 190V and continued for 10 seconds, the cancellation frequency limitation.
(5) overcurrent protection function: when outdoor electric current greater than Idown during less than Istop, the speed that reduced 1Hz with per 1 second progressively reduces operating frequency, till being lower than Idown; When outdoor electric current during less than Idown, forbids that compressor frequency rises greater than Inorm; During less than Inorm, remove this restriction when outdoor.When outdoor electric current greater than Istop and when continuing 2 seconds, compressor shutdown.
(6) power model defencive function: power model self has electric current, voltage, temperature protection, if time interval between 3 these kinds protections and twice protection takes place less than 5 minutes in 30 minutes, then this protection is converted into the IPM fault.When compressor operating time surpasses 5 minutes, then remove IPM protection counting.
2. operational mode
This machine heats (containing defrosting), refrigeration, dehumidifier, air-supply and automatic operation mode.When pattern clashes, preferentially carry out:, when the machine that has opened back start and front clashes, do not allow start by the preferential preference pattern of order of start according to his machine.Open air-supply as the 1st, open for the 2nd and heat, can only open for the 3rd and heat or blow.In case enter the mode of operation of preferential machine, institute is organic be in shutdowns (or blow) state after, could switch the off-premises station mode of operation.Table 1 expression pattern conflict situation:
Table 1 pattern conflict information slip
| Preferential machine | Prepare the operation indoor set | |||||
| Refrigeration | Heat | Air-supply | Dehumidifying | Powerful dehumidifier | The auxiliary electrical heating | |
| Refrigeration | ○ | × | ○ | ○ | ○ | × |
| Heat | × | ○ | ○ | × | × | ○ |
| Air-supply | ○ | ○ | ○ | ○ | ○ | ○ |
| Dehumidifying | ○ | × | ○ | ○ | ○ | × |
| Powerful dehumidifier | ○ | × | ○ | ○ | ○ | × |
| Auxiliary heating | × | ○ | ○ | × | × | ○ |
Annotate: zero is compatible, * not compatible; The pattern that possesses is determined by the indoor electric system.
3. air supply pattern functional requirement
(1) indoor signal compressor that indoor control system is sent under the air supply pattern and indoor cross valve signal are OFF, and outdoor control system is confiscated starting-up signal, treat as indoor shutdown and handle, and outdoor fan, compressor, cross valve and magnetic valve are OFF.
(2) control such as air quantity, wind direction is carried out by indoor set oneself by indoor control system control law.
4. refrigeration mode functional requirement
(1) under the refrigeration mode: the indoor signal compressor that indoor control system is sent is that ON and indoor cross valve signal are OFF, outdoor control system is according to receiving indoor signal compressor number setting running frequency, outdoor cross valve is OFF, and magnetic valve is corresponding to indoor compressor unblanking or close.Outdoor fan is switch with the switch of compressor, when closing, postpones to close in 30 seconds.Keying or remote control select refrigeration mode to be determined by indoor control system.Pattern clashes by table 1 and handles.During pattern conflict, do not accept this indoor set request: corresponding magnetic valve is not opened, and refrigeration compressor signal number does not add 1.
(2) operating frequency of compressor and magnetic valve carry out (dragging with one four is example) by table 2 rule:
The operating frequency of table 2 refrigeration mode lower compression machine and magnetic valve relation
| Indoor cross valve signal | Indoor signal compressor | Refrigeration compressor signal number | The valve situation | Compressor frequency | Outdoor cross valve | |||||||||
| A | B | C | D | A | B | C | D | A | B | C | D | |||
| OFF | OFF | OFF | OFF | OFF | 0 | OFF | OFF | OFF | OFF | 0 | OFF | |||
| ON | OFF | OFF | OFF | 1 | ON | OFF | OFF | OFF | F2 | |||||
| OFF | ON | OFF | OFF | OFF | ON | OFF | OFF | |||||||
| OFF | OFF | ON | OFF | OFF | OFF | ON | OFF | |||||||
| OFF | OFF | OFF | ON | OFF | OFF | OFF | ON | |||||||
| ON | ON | | OFF | 2 | ON | ON | OFF | OFF | F3 | |||||
| OFF | ON | ON | OFF | OFF | ON | ON | OFF | |||||||
| ON | OFF | OFF | ON | ON | OFF | OFF | ON | |||||||
| Similar above-mentioned rule, wantonly two machines are opened | Corresponding magnetic valve is opened | |||||||||||||
| ON | ON | ON | | 3 | ON | ON | ON | OFF | F4 | |||||
| ON | ON | OFF | ON | ON | ON | OFF | ON | |||||||
| ON | OFF | ON | ON | ON | OFF | ON | ON | |||||||
| OFF | ON | ON | ON | OFF | ON | ON | ON | |||||||
| ON | ON | ON | ON | 4 | ON | ON | ON | ON | F5 | |||||
1. the variation of frequency is according to detecting the decision of signal compressor number.
2. the lifting frequency of the open and close of magnetic valve and compressor is in proper order: first frequency reducing, close magnetic valve again; Open magnetic valve earlier, again raising frequency.
3. outdoor temperature is restricted to startup and operation peak frequency, and rule as shown in Figure 2.Concrete parameter among the figure is according to the type adjustment, and concrete parameter obtains by test.
(3) indoor evaporator anti-freeze control
Reduce to shutdown temperature＜-1 ℃ when indoor control system detects the indoor heat converter temperature, close indoor signal compressor, outdoor control system is according to the switch of indoor signal compressor and switch electromagnetic valve, and the running frequency of lifting compressor, presses table 2 and handles.Equally, begin to recover to run well, remove the anti-freeze protection, open indoor signal compressor for system.
(4) powerful function (Full Power)
After indoor control system receives powerful operating instruction, improve indoor air velocity.Outdoor control system is moved processing routinely.
(5) condenser high temperature protection
When condenser temperature surpasses 56 ℃, the overheated frequency reducing protection of system's inlet chamber outer heat-exchanger, the frequency setting that current compressor operation frequency is low 1 grade is the highest permission operating frequency of system, compressor is the target frequency reducing with F1, drop to below 52 ℃ up to this this temperature, system begins to recover to run well; After the system protection action, if heat exchanger temperature is cancelled protection less than 52 ℃ and lasting 10 minutes.If the outdoor heat converter temperature surpasses 60 ℃, then close compressor, this temperature is reduced to below 52 ℃, and the cancellation protection recovers normal.
(6) indoor machine fan running and air blade swing are undertaken by indoor control system regulation.
5. dehumidifier mode capabilities requirement
Room temperature control when entering dehumidification operating mode, indoor fan control are undertaken by indoor control system regulation, and outdoor control system is pressed table 2 according to indoor signal compressor and handled.
6. heating mode functional requirement
(1) under the heating mode: the indoor signal compressor that indoor control system is sent is that ON and indoor cross valve signal are ON, outdoor control system is set running frequency according to the number of receiving indoor signal compressor, stipulate according to table 1, preferential machine is in case move when heating, outdoor cross valve ON is OFF up to all indoor cross valve signals.Defrost process cross valve OFF.Magnetic valve respective chamber/chambers inner compressor unblanking or close.
(2) keying or remote control select heating mode to be determined by indoor control system.Pattern clashes by table 1 and handles.Do not accept this indoor set request during pattern conflict: corresponding magnetic valve is not opened, and heats the signal compressor number and does not add 1.
(3) outdoor fan with the switch of compressor switch, postpone when closing to close in 30 seconds, but when defrost process and defrosting finish exception.
(4) setting of indoor air quantity and control comprise that anti-cold wind control, the control of wind pendulum rely on indoor control system control, but anti-cold wind function are preferential.
(5) operating frequency of compressor and magnetic valve carry out (dragging with one four is example) by table 3 rule:
The operating frequency of table 3 heating mode lower compression machine and magnetic valve relation
| Indoor cross valve signal | Indoor signal compressor | Heat the signal compressor number | The valve situation | Compressor frequency | Outdoor cross valve | |||||||||
| A | B | C | D | A | B | C | D | A | B | C | D | |||
| The signal of preferential machine is ON | OFF | OFF | OFF | OFF | 0 | OFF | OFF | OFF | OFF | 0 | ON | |||
| ON | OFF | OFF | | 1 | ON | OFF | OFF | OFF | F2 | |||||
| OFF | ON | OFF | OFF | OFF | ON | OFF | OFF | |||||||
| OFF | OFF | ON | OFF | OFF | OFF | ON | OFF | |||||||
| OFF | OFF | OFF | ON | OFF | OFF | OFF | ON | |||||||
| ON | ON | OFF | OFF | 2 | ON | ON | OFF | OFF | F3 | |||||
| OFF | ON | ON | OFF | OFF | ON | ON | OFF | |||||||
| ON | OFF | OFF | ON | ON | OFF | OFF | ON | |||||||
| Similar above-mentioned rule, wantonly two machines are opened | Corresponding magnetic valve is opened | |||||||||||||
| ON | ON | ON | | 3 | ON | ON | ON | OFF | F4 | |||||
| ON | ON | OFF | ON | ON | ON | OFF | ON | |||||||
| ON | OFF | ON | ON | ON | OFF | ON | ON | |||||||
| OFF | ON | ON | ON | OFF | ON | ON | ON | |||||||
| ON | ON | ON | ON | 4 | ON | ON | ON | ON | F5 | |||||
1. the variation of frequency is to heat the decision of signal compressor number according to detecting.
2. the lifting frequency of the open and close of magnetic valve and compressor is in proper order: first frequency reducing, close magnetic valve again; Open magnetic valve earlier, again raising frequency.
(6) start and the peak of running intermediate frequency counting rate meterization is subjected to outdoor temperature and limits, as shown in Figure 3.
(7) indoor evaporator high temperature protection: surpass 63 ℃ of shutdown temperatures when indoor control system detects the indoor heat converter temperature; close indoor signal compressor; outdoor control system is according to the switch of indoor signal compressor and switch electromagnetic valve, and the running frequency of lifting compressor, presses table 3 and handles.Equally, begin to recover to run well maybe must re-power, could start shooting behind the releasing high temperature protection, open indoor signal compressor for system.
(8) defrosting running
1. defrost begins condition:
Satisfy one of followingly three, promptly begin defrost.
The first, the outdoor heat converter temperature is lower than 3 ℃ the duration of runs more than 40 minutes continuously, and this temperature is lower than A (6 ℃) more than 3 minutes continuously;
The second, the outdoor heat converter temperature is lower than 3 ℃ running time more than 80 minutes continuously, and this temperature is lower than A+2 ℃ more than 3 minutes continuously;
The 3rd, the outdoor heat converter temperature be lower than continuously running time of 3 ℃ more than 120 minutes and this temperature be lower than A+3 ℃ continuously more than 3 minutes.
2. defrost termination condition
Satisfy one of followingly three, then finish defrost, change common heating over to.
The first, when the outdoor heat converter temperature rises to when being higher than 8 ℃;
The second, when the defrosting running continues 10 minutes.
3. defrost action: as shown in Figure 4.
(9) powerful function (FULL POWER)
After indoor control system receives powerful operating instruction, improve indoor air velocity.Outdoor control system is moved processing routinely.
7. automatic operational mode function
After indoor control system receives automatic operating instruction, judge and carry out concrete operational mode, during pattern conflict, press table 1 and handle.Outdoor control system is moved processing routinely.
8. timing function requirement
After indoor control system receives time-of-the-day order, judge to carry out concrete operational mode, during pattern conflict during start, press table 1 processing.Outdoor control system is moved processing routinely.
9. sleep pattern
After indoor control system received the sleep operating instruction, outdoor control system was moved processing routinely.
10. dormancy power-off protection pattern
Do not receive the signal of indoor set when off-premises station after, be in park mode, the power supply of control system outside the close chamber.After receiving indoor signal, power-on.
11.PCB plate self-checking function
Detection on producing for convenience, can also increase measuring ability, when powering on, when the level that detects test pin is low, carry out measuring ability, main contents comprise: the outdoor test that each output (I/O) pin is exported the I/O port with 0.5 second width circulation output (comprising outdoor fan, cross valve, magnetic valve, LED etc.), input I/O port to be tested, and auxiliary compressor drives the control test; The secondary analog indoor set communicates test, the test in analogue measurement loops such as auxiliary outdoor temperature, outdoor heat converter temperature, compressor suction/delivery temperature, electric current, voltage.
12. outdoor control system Presentation Function
For convenience of maintenance failure; can also be in the outdoor LED light that adds, by bright, go out, dodge the following several malfunctions of combination indication: compressor exhaust temperature sensor abnormality, pressure sensor are unusual, outdoor heat converter abnormality of temperature sensors, outdoor environment temperature sensor abnormality, signal and communication are unusual, power supply can not be added to off-premises station or off-premises station substrate, IPM module protection (electric current, temperature), current peak turn-off, ac input voltage is unusual, voltage transformer fault, compression case top sensor abnormality, current mulual inductor malfunction.
As mentioned above, can realize the utility model preferably.
Claims (2)
1. one kind one is dragged many AC frequency conversions air-conditioner controller, interconnect by shell and internal circuit board, compressor electric motor, fan electromotor and to form, it is characterized in that, described circuit is made up of buffer circuit, governor circuit, drive circuit, current-voltage sampling circuit, its interconnected relationship is, buffer circuit is electrically connected mutually with governor circuit, governor circuit is electrically connected mutually with current-voltage sampling circuit, and be connected with drive circuit by control signal wire, drive circuit is connected with magnetic valve, cross valve, and is electrically connected mutually with compressor electric motor, fan electromotor respectively.
2. according to claim 1 a kind of one drags many AC frequency conversions air-conditioner controller, it is characterized in that described governor circuit also is connected with temperature sensor and pressure-sensitive switch, and is connected with power supply with rectification circuit by electric source filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224371 CN2641512Y (en) | 2003-03-20 | 2003-03-20 | One-driving multiple ac frequency change air conditioner controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224371 CN2641512Y (en) | 2003-03-20 | 2003-03-20 | One-driving multiple ac frequency change air conditioner controllers |
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| Publication Number | Publication Date |
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| CN2641512Y true CN2641512Y (en) | 2004-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03224371 Expired - Fee Related CN2641512Y (en) | 2003-03-20 | 2003-03-20 | One-driving multiple ac frequency change air conditioner controllers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432560C (en) * | 2006-09-26 | 2008-11-12 | 王眉一 | Air-conditioning intermediate controller |
| CN102811012A (en) * | 2012-07-20 | 2012-12-05 | 华中科技大学 | Field programmable gate array-based (FPGA-based) multi-axis servo motor current loop control system and control method |
| CN108036475A (en) * | 2017-11-21 | 2018-05-15 | 青岛海尔空调电子有限公司 | Control method and air-conditioning for air-conditioning |
| CN108870681A (en) * | 2018-07-12 | 2018-11-23 | 四川虹美智能科技有限公司 | A kind of mode automatic processing method, the apparatus and system of multi-connected machine central air-conditioning |
| CN111623469A (en) * | 2020-05-11 | 2020-09-04 | 珠海格力电器股份有限公司 | Air conditioner air duct state detection method, computer readable storage medium and air conditioner |
| CN112696742A (en) * | 2021-02-02 | 2021-04-23 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN112880166A (en) * | 2021-02-20 | 2021-06-01 | 珠海格力电器股份有限公司 | Automatic setting method and device for temperature controller and temperature controller |
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2003
- 2003-03-20 CN CN 03224371 patent/CN2641512Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432560C (en) * | 2006-09-26 | 2008-11-12 | 王眉一 | Air-conditioning intermediate controller |
| CN102811012A (en) * | 2012-07-20 | 2012-12-05 | 华中科技大学 | Field programmable gate array-based (FPGA-based) multi-axis servo motor current loop control system and control method |
| CN102811012B (en) * | 2012-07-20 | 2015-01-28 | 华中科技大学 | Field programmable gate array-based (FPGA-based) multi-axis servo motor current loop control system and control method |
| CN108036475A (en) * | 2017-11-21 | 2018-05-15 | 青岛海尔空调电子有限公司 | Control method and air-conditioning for air-conditioning |
| CN108870681A (en) * | 2018-07-12 | 2018-11-23 | 四川虹美智能科技有限公司 | A kind of mode automatic processing method, the apparatus and system of multi-connected machine central air-conditioning |
| CN111623469A (en) * | 2020-05-11 | 2020-09-04 | 珠海格力电器股份有限公司 | Air conditioner air duct state detection method, computer readable storage medium and air conditioner |
| CN111623469B (en) * | 2020-05-11 | 2021-06-18 | 珠海格力电器股份有限公司 | Air conditioner air duct state detection method, computer readable storage medium and air conditioner |
| CN112696742A (en) * | 2021-02-02 | 2021-04-23 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN112696742B (en) * | 2021-02-02 | 2022-04-19 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN112880166A (en) * | 2021-02-20 | 2021-06-01 | 珠海格力电器股份有限公司 | Automatic setting method and device for temperature controller and temperature controller |
| CN112880166B (en) * | 2021-02-20 | 2022-05-10 | 珠海格力电器股份有限公司 | Automatic setting method and device for temperature controller and temperature controller |
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