CN204084739U - Control Method of Inverter Air Conditioner - Google Patents
Control Method of Inverter Air Conditioner Download PDFInfo
- Publication number
- CN204084739U CN204084739U CN201420591401.4U CN201420591401U CN204084739U CN 204084739 U CN204084739 U CN 204084739U CN 201420591401 U CN201420591401 U CN 201420591401U CN 204084739 U CN204084739 U CN 204084739U
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- control device
- air
- indoor
- air conditioner
- conditioner
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a kind of air-conditioner control system, comprise air conditioner and air conditioning control device, air conditioning control device and air conditioner are electrical connected; Described air conditioning control device comprises the switching device (3) of the parallel connection of the dc source after by the AC rectification of AC power (1) configuration, the resonant capacitor (4) be connected in parallel with described switching device (3); Be arranged on the counterflow-preventing diode (5) between described switching device (3) and described resonant capacitor (4).The utility model Absorbable organic halogens ground drives compressor of air conditioner.
Description
Technical field
The utility model relates to a kind of control system, particularly a kind of Control Method of Inverter Air Conditioner.
Background technology
At present, convertible frequency air-conditioner is because good energy saving, accurate temperature controlling, ultralow temperature start, the feature such as to heat fast and be more and more subject to liking of consumer.In airconditioning control, temperature control is application technology widely, is also a kind of comparatively ripe technology simultaneously, can make to be remained on certain fixing temperature by object by this technology, or makes its temperature according to the rule change preset.In the daily practicality of air-conditioning, thunderbolt and other circuit abnormalities can cause moment surge voltage greatly; surge voltage can produce harm greatly to electrical equipment; especially for distribution system; once cause distribution system to be damaged because of surge voltage; the relevant electrical equipment of distribution system can be caused to lose power supply even damage, therefore distribution system must arrange lightning-prevention and surge-resistance protective device.But the aspect such as temperature control, surge protection of air-conditioning system is still not fully up to expectations at present.
Utility model content
For the defect of prior art, the utility model provides a kind of Control Method of Inverter Air Conditioner.
A kind of air-conditioner control system, comprise air conditioner and air conditioning control device, air conditioning control device and air conditioner are electrical connected; Described air conditioning control device comprises the switching device 3 of the parallel connection of the dc source after by the AC rectification of AC power 1 configuration, the resonant capacitor 4 be connected in parallel with described switching device 3; Be arranged on the counterflow-preventing diode 5 between described switching device 3 and described resonant capacitor 4; The filter condenser 6 be connected in parallel with described resonant capacitor 4; Be arranged on the resonance reactor 7 between described resonant capacitor 4 and described filter condenser 6; And be used for detecting the DC voltage detecting device by the DC voltage after described resonance reactor; Also be connected to surge protection circuit 9 between the dc bus after filter capacitor 6, surge protection circuit 9 comprises gas-discharge tube GDT and the first piezo-resistance MOV1, and this gas-discharge tube GDT connects with the first piezo-resistance MOV1; Described surge protection circuit 9 is connected with inverter, inverter is connected with motor 12, there is at the output of inverter the current sensor detecting electric current, described motor 12 has the speed probe 13 detecting motor 12 rotating speed, and the current signal that described current sensor detects and the tach signal that speed probe 13 detects are sent in DSP; Indoor temperature transmitter is connected with DSP.
Optionally, described air conditioner comprises indoor set and off-premises station, and indoor set is connected by refrigerant piping with off-premises station, and indoor set possesses expansion valve 400, indoor heat converter 500, indoor fan 5a and Indoor Control Device 100a; Off-premises station possesses compressor 100, cross valve 200, outdoor heat converter 300, outdoor fan 3a and outdoor control device 100b; Compressor 100 is connected with when freezing and switches the cross valve 200 of flow of refrigerant when heating, the side of this cross valve 200 is junction chamber outer heat-exchanger 300 through refrigerant piping L, is connected with indoor heat converter 500 in the opposing party side of cross valve 200 through refrigerant piping.
Optionally, described temperature sensor comprises temperature-measuring element, and described temperature-measuring element is connected with signal amplifier, and the output of signal amplifier is connected with DSP through a/d converter.
The beneficial effects of the utility model are: provide closed-loop temperature control circuit, decrease the quantity needing the wire connected, decrease electronic component; Can available protecting low-voltage distribution system be struck by lightning and the harm of surge voltage; Absorbable organic halogens ground drives compressor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the new air conditioner of this practicality;
Fig. 2 is the structural representation of the utility model air conditioning control device;
Fig. 3 is the structural representation of the utility model door temperature sensor.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing, make above-mentioned and other object of the present utility model, Characteristics and advantages will be more clear.Reference numeral identical in whole accompanying drawing indicates identical part.Deliberately do not draw accompanying drawing in proportion, focus on purport of the present utility model is shown.
As shown in Figure 1, indoor set Iu is connected by refrigerant piping L with off-premises station Ou by air conditioner of the present utility model, and carries out the operation of air conditioner that specifies according to the infrared signal inputted from remote controller Re.Indoor set Iu possesses expansion valve 400, indoor heat converter 500, indoor fan 5a and Indoor Control Device 100a.In addition, off-premises station Ou possesses compressor 100, cross valve 200, outdoor heat converter 300, outdoor fan 3a and outdoor control device 100b.Be connected with when freezing at compressor 100 and when heating, switch the cross valve 200 of flow of refrigerant.Be connected with outdoor heat converter 300 in a side side of this cross valve 200 through refrigerant piping L, this outdoor heat converter 300 plays function, plays function when warming operation as evaporimeter as condenser when cooling operation.In addition, be connected with indoor heat converter 500 in the opposing party side of cross valve 200 through refrigerant piping L, this indoor heat converter 500 plays function, plays function when warming operation as condenser as evaporimeter when cooling operation.Decompressor and expansion valve 400 is connected with between outdoor heat converter 300 and indoor heat converter 500.The control device (outdoor control device 100b) that the driving of the motor M that compressor 100 possesses controls is denoted as " air conditioning control device ".
As shown in Figure 2, in Fig. 2,11 are used to the AC reactor carrying out boost action to the structure of air conditioning control device, and 10 is disconnect switchs of power supply, and 2 is commutation diode modules three-phase alternating current being rectified into DC voltage.Switching device 3 makes DC voltage Vdc rise by controlling the electric current of AC reactor 11, carries out PWM control (or chop control) by control device DSP to it.DSP carries out controlling as parameter according to the change of input direct voltage Vdc, and DC voltage Vdc is detected by DC voltage detecting device.Inverter portion includes resonant capacitance 4, AC reactor 11, resonance reactor 7, it makes current direction cut off the sense of current of AC reactor 11, counterflow-preventing diode 5, it is prevented that the reverse flow of the electric current from resonance reactor 7, is used for the filter capacitor 6 of smooth dc voltage in addition.The output of transverter is connected on inverter circuit, and inverter circuit is bipartite: one is are DSP transistor modular 8 being carried out to PWM control the transistor modular 8, two being used for producing the device blocks that three-phase alternating current exports.And motor 12 inverter drives.The electric current flowing through AC reactor 11 when switching device 3 conducting just sharply increases; After this cut off this switching device 3, the electric current once flowing through AC reactor 11 then flows into resonant capacitance 4.Then, the voltage rise of resonant capacitor 4, the electric current flowing through AC reactor 11 reduces.Now, in resonance reactor 7, also have electric current to flow through, this electric current is contrary with the current phase flowing through AC reactor 11, and the electric current in interchange reactance line device 11 is reduced.Also be connected to surge protection circuit 9 between the dc bus after filter capacitor 6, surge protection circuit 9 comprises gas-discharge tube GDT and the first piezo-resistance MOV1, and this gas-discharge tube GDT connects with the first piezo-resistance MOV1.Gas-discharge tube is made up of the electrode in a pair gassiness glass tube or earthenware.When the voltage at gas-discharge tube two ends exceedes the dielectric strength of gas, the gap of two interpolars is discharged and punctures, then gas-discharge tube is converted into conduction state by original state of insulation, and harmful electric current is released by the ground end of gas-discharge tube.In the present embodiment, gas-discharge tube is preferably ceramic gas discharge tube.Because the insulation impedance of gas-discharge tube is larger, its leakage current produced is less.So the ceramic gas discharge tube with higher insulation impedance can reduce leakage current effectively, avoid in circuit because leakage current produces the problem on fire of electronic component.At the output of inverter, there is the current sensor detecting electric current and the speed probe 13 detecting motor 12 rotating speed, speed probe 13 can be encoder or rotary transformer, the current signal that current sensor detects and the tach signal that speed probe detects are sent in DSP, the temperature signal that indoor temperature transmitter detects in addition is also sent in DSP, and DSP is according to the running of each signal control motor 12 detected.
In order to improve temperature controlled accuracy, the structure of temperature sensor of the present utility model as shown in Figure 3, temperature-measuring element measuring tempeature.This temperature-measuring element output temperature signal, it is input to DSP through a/d converter after being amplified by signal amplifier again.This DSP processes this temperature signal, then produces the control signal for controlling compressor and is supplied to analog line driver, material is thus formed closed loop thermal and controls.
Set forth a lot of detail in the above description so that fully understand the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be much different from alternate manner described here to implement, and therefore the utility model is not by the disclosed concrete restriction implemented above.Any those skilled in the art are not departing under technical solutions of the utility model ambit simultaneously, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Every content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model protection.
Claims (3)
1. an air-conditioner control system, it is characterized in that comprising air conditioner and air conditioning control device, air conditioning control device and air conditioner are electrical connected;
Described air conditioning control device comprises the switching device (3) of the parallel connection of the dc source after by the AC rectification of AC power (1) configuration, the resonant capacitor (4) be connected in parallel with described switching device (3); Be arranged on the counterflow-preventing diode (5) between described switching device (3) and described resonant capacitor (4); The filter condenser (6) be connected in parallel with described resonant capacitor (4); Be arranged on the resonance reactor (7) between described resonant capacitor (4) and described filter condenser (6); And be used for detecting the DC voltage detecting device by the DC voltage after described resonance reactor (7); Also be connected to surge protection circuit (9) between the dc bus after filter capacitor (6), described surge protection circuit (9) comprises gas-discharge tube GDT and the first piezo-resistance MOV1, and this gas-discharge tube GDT connects with the first piezo-resistance MOV1;
Described surge protection circuit (9) is connected with inverter, inverter is connected with motor (12), there is at the output of inverter the current sensor detecting electric current, described motor (12) has the speed probe (13) of detection motor (12) rotating speed, and the current signal that described current sensor detects and the tach signal that speed probe (13) detects are sent in DSP; Indoor temperature transmitter is connected with DSP.
2. air-conditioner control system according to claim 1, it is characterized in that, described air conditioner comprises indoor set and off-premises station, indoor set is connected by refrigerant piping with off-premises station, and indoor set possesses expansion valve (400), indoor heat converter (500), indoor fan (5a) and Indoor Control Device (100a); Off-premises station possesses compressor (100), cross valve (200), outdoor heat converter (300), outdoor fan (3a) and outdoor control device (100b); Compressor (100) is connected with when freezing and switches the cross valve (200) of flow of refrigerant when heating, the side of this cross valve (200) is junction chamber outer heat-exchanger (300) through refrigerant piping L, is connected with indoor heat converter (500) in the opposing party side of cross valve (200) through refrigerant piping.
3. air-conditioner control system according to claim 1, is characterized in that, described temperature sensor comprises temperature-measuring element, and described temperature-measuring element is connected with signal amplifier, and the output of signal amplifier is connected with DSP through a/d converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591401.4U CN204084739U (en) | 2014-10-14 | 2014-10-14 | Control Method of Inverter Air Conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591401.4U CN204084739U (en) | 2014-10-14 | 2014-10-14 | Control Method of Inverter Air Conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204084739U true CN204084739U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420591401.4U Expired - Fee Related CN204084739U (en) | 2014-10-14 | 2014-10-14 | Control Method of Inverter Air Conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204084739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021052205A1 (en) * | 2019-09-17 | 2021-03-25 | 青岛海尔空调电子有限公司 | Surge absorption circuit for single-phase air conditioning system |
-
2014
- 2014-10-14 CN CN201420591401.4U patent/CN204084739U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021052205A1 (en) * | 2019-09-17 | 2021-03-25 | 青岛海尔空调电子有限公司 | Surge absorption circuit for single-phase air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20151014 |
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| EXPY | Termination of patent right or utility model |