CN2511043Y - Soft-starting controller for domestic air-conditioner - Google Patents
Soft-starting controller for domestic air-conditioner Download PDFInfo
- Publication number
- CN2511043Y CN2511043Y CN 01268401 CN01268401U CN2511043Y CN 2511043 Y CN2511043 Y CN 2511043Y CN 01268401 CN01268401 CN 01268401 CN 01268401 U CN01268401 U CN 01268401U CN 2511043 Y CN2511043 Y CN 2511043Y
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- circuit
- conditioner
- air conditioner
- electric capacity
- compressor
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- Air Conditioning Control Device (AREA)
Abstract
A soft starting controller of household air-conditioner relates to the field of air-conditioner technology. The utility model comprises an operation capacitor, i.e. an electronic circuit which is connected to the compressor of air-conditioner, a controlling circuit of starting capacitor, a normally opened contact of compressor delay, a silicon controlled rectifier, a single chip computer which is connected to the controlling pole of silicon controlled rectifier and an auxiliary circuit, a detecting circuit of voltage of city power, a compressor delay, a control relay coil of starting capacitor, and a direct current power supply. And the controlling circuit of starting capacitor is cascaded of a normally opened contact of controlling delay of starting capacitor, a NTC element, and a parallel circuit of a starting capacitor and a releasing resistance. The controlling circuit of starting capacitor, which can reduce the starting current of air-conditioner and can decrease the impact on power network when the air-conditioner starts, successfully passes the test of items such as voltage ripple and flicker etc. according to national standard GB-17625.2. Thus, the utility model can be used in air-conditioner, especially household air-conditioner.
Description
Technical field
The utility model relates to domestic air conditioner, a kind of air conditioner soft start controller to the little domestic air conditioner of the impact of electrical network when starting that makes of more clearly saying so.
Background technology
Present family expenses fixed frequency air conditioner device all can not pass through standard GB-17625.The test of projects such as voltage fluctuation in 2 and flicker.Tracing it to its cause, is because the starting current of the compressor of existing family expenses fixed frequency air conditioner device is excessive.If reduce starting current simply, then can can't make compressor start because of starting torque is too small again.Existing family expenses fixed frequency air conditioner device all can not pass through standard GB-17625.The test of projects such as voltage fluctuation in 2 and flicker.That is to say that the starting current of present domestic air conditioner is still excessive.
The purpose of this utility model is to overcome above-mentioned shortcoming and defect, provides a kind of and makes the starting current of air conditioner little, bigger starting torque is arranged again, can pass through standard GB-17625.The soft start controller of the domestic air conditioner of the test of projects such as voltage fluctuation in 2 and flicker.
Summary of the invention
In order to achieve the above object, the utility model is made up of the electronic circuit on the compressor that is connected air conditioner.Electronic circuit is by the running electric capacity between the outer end points B of the outer end points A of the main coil that is connected in parallel on compressor and auxiliary winding, and be connected in startup capacitor control circuit between A, the B, be connected the press relay normally open contact between civil power live wire and the A point, be connected in parallel on the controllable silicon at press relay normally open contact two ends, be connected monolithic computer and auxiliary circuit thereof that silicon controlled control is extremely gone up, be connected line voltage testing circuit and the press relay on the monolithic computer and start electric capacity control relay coil and form to the DC power supply of above-mentioned circuit supply.Starting capacitor control circuit is in series with the parallel circuits that starts electric capacity and bleeder resistor after starting electric capacity control relay normally open contact and NTC element connected in series again.
Also connecting transistor drive circuit respectively between monolithic computer and press relay and the startup electric capacity control relay coil.Also connecting the photoelectrical coupler drive circuit between the monolithic computer and the silicon controlled control utmost point.The bleeder circuit that voltage detecting circuit is made up of resistance and voltage stabilizing didoe is formed.
The utility model is like this work: air conditioner is inserted civil power and power on.When air conditioner room unit sent off-premises station with power supply, monolithic computer started the conducting of electric capacity control relay coil, its normally open contact closure by the transistor drive circuit order.So controllable silicon conducting.Monolithic computer is added in starting resistor on the compressor by the controllable silicon may command, so compressor is activated.Behind the compressor start, the press relay gets electric, its normally open contact closure, and controllable silicon disconnects.Start electric capacity control relay dead electricity subsequently, its normally open contact disconnects.Start-up course so far finishes, and running electric capacity and compressor enter normal operating condition.The NTC element is a kind of negative tempperature coefficient thermistor, and its resistance value descends with its temperature.When air conditioner startup electric capacity puts into operation, by the NTC element, can suppress effectively to control the starting current of compressor by starting the surge current of electric capacity, to starting electric capacity protective effect is arranged simultaneously.The effect of bleeder resistor is an earial drainage.After cutting off startup electric capacity control relay and normally open contact thereof, starting to assemble on the electric capacity has a large amount of electric charges, can discharge accumulating in the electric charge that starts on electric capacity the two poles of the earth by bleeder resistor, for the soft start next time of air conditioner is got ready.The effect of photoelectrical coupler is to drive.Voltage detecting circuit is used for the detection of line voltage, the input monolithic computer.
Monolithic computer is made up of MC68HC908JK3CP type or TNP87P808N type.The result of use of these two kinds of single-chip microcomputers is better.Also can select the monolithic computer of other model for use.Piezo-resistance also in parallel respectively between civil power live wire and the A point and between the ground wire of civil power live wire and compressor.Piezo-resistance is an element to voltage-sensitive.When the voltage that is added to the piezo-resistance two ends hour, the electric current that flows through piezo-resistance is very little, and piezo-resistance shows as the high resistant characteristic.When the voltage that is added to the piezo-resistance two ends arrived certain value greatly, the electric current that flows through piezo-resistance increased rapidly, and piezo-resistance shows as the low-resistance characteristic.It is used for the overvoltage protection to compressor.
According to the operation characteristic of monophase machine and the startup operation characteristic of fixed frequency air conditioner device, reduce starting resistor and can reduce starting current.But when reducing starting current, as not changing other parameter, staring torque will have certain decline.And to guarantee enough staring torques, then need to increase the capacity that starts electric capacity.Concrete starting resistor with start electric capacity and should mate according to test because of the different of press and system start-up time.
Task of the present utility model comes to this and finishes.
The utility model can reduce the starting current of air conditioner, to the impact of electrical network, passes through standard GB-17625 smoothly when reducing the air conditioner startup.The test of projects such as voltage fluctuation in 2 and flicker.It can be widely used in air conditioner particularly in the family expenses fixed frequency air conditioner device.
Description of drawings
Fig. 1 is a functional-block diagram of the present utility model.
Fig. 2 is an electronic circuit schematic diagram of the present utility model.
Illustrated in figures 1 and 2, the utility model is by the running electric capacity 2 between the outer end points B of the outer end points A of the main coil that is connected in parallel on compressor 1 and auxiliary winding, and be connected in A, startup capacitor control circuit between the B, be connected press relay 7 normally open contacts 3 between civil power live wire L and the A point, be connected in parallel on the controllable silicon 4 at press relay normally open contact 3 two ends, be connected monolithic computer 5 and auxiliary circuit thereof that the control of controllable silicon 4 is extremely gone up, be connected line voltage testing circuit 6 and the press relay 7 on the monolithic computer 5 and start the coil of electric capacity control relay 8 and form to the DC power supply 9 of above-mentioned circuit supply.Starting capacitor control circuit is in series with the parallel circuits that starts electric capacity 12 and bleeder resistor 13 after starting electric capacity control relay 8 normally open contacts 10 and 11 series connection of NTC element again.
Shown in Figure 2, also connecting transistor drive circuit 14 and 15 respectively between the coil of monolithic computer 5 and press relay 7 and startup electric capacity control relay 8.Also connecting photoelectrical coupler drive circuit 16 between the control utmost point of monolithic computer 5 and controllable silicon 4.The bleeder circuit that voltage detecting circuit 6 is made up of resistance 17,18,19 and voltage stabilizing didoe 20 is formed.Monolithic computer 5 is made up of the MC68HC908JK3CP type.Piezo-resistance 21 also in parallel respectively between civil power live wire and the A point and between the ground wire of civil power live wire and compressor 1.
Embodiment
Specific embodiment of the utility model is as follows:
Embodiment 1.See Fig. 1 and Fig. 2.A kind of soft start controller of domestic air conditioner is made up of the electronic circuit on the compressor that is connected air conditioner.Electronic circuit by the running electric capacity between the outer end points B of the outer end points A of the main coil that is connected in parallel on compressor and auxiliary winding, start capacitor control circuit, press relay normally open contact, controllable silicon, monolithic computer and auxiliary circuit, line voltage testing circuit and press relay and start electric capacity control relay coil and DC power supply is formed.Starting capacitor control circuit is in series by the parallel circuits that starts electric capacity control relay normally open contact, NTC element, startup electric capacity and bleeder resistor.
Also connect transistor drive circuit respectively between monolithic computer and press relay and the startup electric capacity control relay coil, also connecting the photoelectrical coupler drive circuit between the monolithic computer and the silicon controlled control utmost point.The bleeder circuit that voltage detecting circuit is made up of resistance and voltage stabilizing didoe is formed.Monolithic computer is made up of the MC68HC908JK3CP type.Piezo-resistance also in parallel respectively between civil power live wire and the A point and between the ground wire of civil power live wire and compressor.
Embodiment 1 can reduce the starting current of air conditioner, to the impact of electrical network, passes through standard GB-17625 smoothly when reducing the air conditioner startup.The test of projects such as voltage fluctuation in 2 and flicker.It can be widely used in air conditioner particularly in the family expenses fixed frequency air conditioner device.
Claims (6)
1. the soft start controller of a domestic air conditioner, formed by the electronic circuit on the compressor that is connected air conditioner, it is characterized in that it is by the running electric capacity between the outer end points B of the outer end points A of the main coil that is connected in parallel on compressor and auxiliary winding, and be connected in A, startup capacitor control circuit between the B, be connected the press relay normally open contact between civil power live wire and the A point, be connected in parallel on the controllable silicon at press relay normally open contact two ends, be connected monolithic computer and auxiliary circuit thereof that silicon controlled control is extremely gone up, be connected line voltage testing circuit on the monolithic computer and press relay and start electric capacity control relay coil and form, start capacitor control circuit and be in series by the parallel circuits that starts after electric capacity control relay normally open contact and the NTC element connected in series again with startup electric capacity and bleeder resistor to the DC power supply of above-mentioned circuit supply.
2. according to the soft start controller of the described domestic air conditioner of claim 1, it is characterized in that said monolithic computer and press relay and start between the electric capacity control relay coil also connecting transistor drive circuit respectively, also connecting the photoelectrical coupler drive circuit between the monolithic computer and the silicon controlled control utmost point.
3. according to the soft start controller of claim 1 or 2 described domestic air conditioners, it is characterized in that the bleeder circuit that said voltage detecting circuit is made up of resistance and voltage stabilizing didoe forms.
4. according to the soft start controller of the described domestic air conditioner of each claim in the claim 1～3, it is characterized in that said monolithic computer is made up of the MC68HC908JK3CP type.
5. according to the soft start controller of the described domestic air conditioner of each claim in the claim 1～3, it is characterized in that said monolithic computer is made up of the TNP87P808N type.
6. according to the soft start controller of the described domestic air conditioner of each claim in the claim 1～5, it is characterized in that between said civil power live wire and the A point and piezo-resistance also in parallel respectively between the ground wire of civil power live wire and compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268401 CN2511043Y (en) | 2001-11-09 | 2001-11-09 | Soft-starting controller for domestic air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268401 CN2511043Y (en) | 2001-11-09 | 2001-11-09 | Soft-starting controller for domestic air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511043Y true CN2511043Y (en) | 2002-09-11 |
Family
ID=33674591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01268401 Expired - Lifetime CN2511043Y (en) | 2001-11-09 | 2001-11-09 | Soft-starting controller for domestic air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511043Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414223C (en) * | 2003-12-15 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Control device for compressor |
| CN105134570A (en) * | 2015-08-26 | 2015-12-09 | 珠海格力电器股份有限公司 | Control method and system for starting fixed-frequency compressor |
-
2001
- 2001-11-09 CN CN 01268401 patent/CN2511043Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414223C (en) * | 2003-12-15 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Control device for compressor |
| CN105134570A (en) * | 2015-08-26 | 2015-12-09 | 珠海格力电器股份有限公司 | Control method and system for starting fixed-frequency compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |