CN203010850U - Control circuit of air conditioner outdoor fan and air conditioner - Google Patents
Control circuit of air conditioner outdoor fan and air conditioner Download PDFInfo
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- CN203010850U CN203010850U CN 201220737709 CN201220737709U CN203010850U CN 203010850 U CN203010850 U CN 203010850U CN 201220737709 CN201220737709 CN 201220737709 CN 201220737709 U CN201220737709 U CN 201220737709U CN 203010850 U CN203010850 U CN 203010850U
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Abstract
The utility model discloses a control circuit of an air conditioner outdoor fan and an air conditioner. The control circuit of the air conditioner outdoor fan and the air conditioner comprise a controller which is arranged in an air conditioner outdoor machine, a driving circuit and an outdoor fan, wherein a gauge which is used for detecting the wind direction of the environment is further arranged on the outdoor machine. A detection signal is generated by the gauge and is output to the controller, a control signal is generated by the controller according to the wind direction of the environment and is output to the driving circuit, and the rotating direction of the outdoor fan is adjusted through the driving circuit. According to the air conditioner, the running state of the air conditioner outdoor fan can be automatically adjusted according to the wind direction and wind speed of the external environment. By adjusting of the rotating direction and rotating speed of the air conditioner outdoor fan, natural resources can be fully utilized by a system, so that high-efficient running of the air conditioner is achieved while heat exchange efficiency is guaranteed.
Description
Technical field
The utility model belongs to the air conditioning and refrigeration field of engineering technology, specifically, relates to a kind of air-conditioner for the outdoor fan of air-conditioner is implemented the circuit structure of controlling and adopted this outdoor fan control circuit design.
Background technology
In present air-conditioner product, mostly all comprise indoor set and off-premises station two parts.Off-premises station is responsible for refrigeration or is heated, and indoor set is responsible for cold air or hot gas are transported to indoor, with the effect that reaches cooling or heat up.
Off-premises station is in the process of refrigeration or heating operation, and the caloric requirement that discharges by heat exchanger utilizes outdoor fan promptly to be dispersed in air.For traditional air-conditioner outdoor fan, it turns to is all changeless, is all namely the air inlet air draught from off-premises station, by air outlet; And the rotating speed of outdoor fan only is subjected to the control of air-conditioner self-operating situation, is not subjected to the impact of extraneous wind direction and wind speed.There is following defective in the traditional control method of this air-conditioner outdoor fan:
(1) if extraneous ambient wind to relative with the air-out direction of outdoor fan, be extraneous wind to the air outlet of off-premises station, as shown in Figure 1, the air quantity by heat exchanger will greatly reduce like this, cause off-premises station heat transfer effect variation, impact refrigeration or heating effect;
(2) if extraneous ambient wind to the air-out direction of outdoor fan in opposite directions, be that extraneous wind is to the air inlet of off-premises station, as shown in Figure 2, like this along with the increase of environment air quantity, air quantity by heat exchanger may be very abundant, but still in running, so will produce idle work, cause the waste of the energy due to outdoor fan this moment.
Summary of the invention
The purpose of this utility model is to provide a kind of can change automatically according to the wind direction of external environment the air-conditioner outdoor fan control circuit that the air-conditioner outdoor fan turns to, to realize the efficient operation of air-conditioner.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of air-conditioner outdoor fan control circuit, comprise the controller, drive circuit and the outdoor fan that are arranged in air-conditioner outdoor unit, also be provided with on described off-premises station for detection of ambient wind to measuring instrument, described measuring instrument generates detection signal and exports controller to, described controller exports drive circuit according to ambient wind to generating control signal, regulates turning to of outdoor fan by drive circuit.
When described outdoor fan is selected the three-phase alternating current blower fan, outdoor fan can be connected frequency converter by the reversing switch in drive circuit, receive the three-phase alternating-current supply of frequency converter output; Described reversing switch receives the switch controlling signal of controller output, regulates turning to of outdoor fan by the phase sequence that changes described three-phase alternating-current supply.
In order to realize the adjusting to the outdoor fan rotating speed, the rotating speed of outdoor fan can be regulated automatically according to ambient wind velocity, to reach the purpose of design that reduces the air-conditioner Overall Power Consumption, also be provided with wind speed detection device on described off-premises station, generate the wind speed detection signal according to ambient wind velocity and export described controller to, described controller connects frequency converter, and the frequency of the three-phase alternating-current supply by changing frequency converter output is regulated the rotating speed of outdoor fan.
Preferably, described wind speed detection device preferably is built in described measuring instrument, namely selects wind speed/wind direction measuring instrument to be arranged on off-premises station, realize to ambient wind to the detection of wind speed.
Accurate in order to guarantee the testing result that measuring instrument generates, avoid being subjected to the wind effect that of outdoor fan, preferably described measuring instrument is arranged on the outside of outdoor set cabinet, and is positioned on the top board of casing.
Preferably, described measuring instrument is preferably mounted at the middle part of casing top board.
based on above-mentioned air-conditioner outdoor fan control circuit, the utility model also provides a kind of air-conditioner, comprise indoor set and off-premises station, be provided with controller in described off-premises station, drive circuit and outdoor fan, also be provided with on described off-premises station for detection of ambient wind to measuring instrument, described measuring instrument generates detection signal and exports controller to, described controller exports drive circuit according to ambient wind to generating control signal, regulate turning to of outdoor fan by drive circuit, with the air-out direction of realizing outdoor fan with ambient wind to change and the purpose of design of automatically regulating, to realize the efficient operation of air-conditioner.
Further, on described off-premises station, air outlet and air inlet are separately positioned on the front panel and backboard of casing.
Compared with prior art, advantage of the present utility model and good effect are: air-conditioner of the present utility model can be according to the ambient wind in the external world to the running status of adjusting the air-conditioner outdoor fan, system can be made full use of the natural resources, realize the efficient operation of air-conditioner.When relative with the air-out wind direction of conventional air conditioner, shut down or make outdoor fan counter-rotating by controlling outdoor fan in ambient wind, can avoid air quantity to reduce and even can improve air quantity, guarantee the abundant heat exchange of heat exchanger; To in opposite directions the time, shutting down or reduce the rotating speed of outdoor fan with the air-out wind direction of conventional air conditioner by controlling outdoor fan, when guaranteeing heat exchange efficiency, can so that the operate power of air-conditioner complete machine reduces, play energy-efficient effect in ambient wind.
After reading by reference to the accompanying drawings the detailed description of the utility model embodiment, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
The air-out wind direction that Fig. 1 is ambient wind to the outdoor fan forward time over against the time the wind direction schematic diagram;
Wind direction schematic diagram when the air-out wind direction that Fig. 2 is ambient wind to the outdoor fan forward time is consistent;
The air-out wind direction that Fig. 3 is ambient wind to the outdoor fan forward time is non-over against the wind direction schematic diagram when consistent;
Fig. 4 is the installation site schematic diagram of the wind speed/a kind of embodiment of wind direction measuring instrument on air-conditioner outdoor unit;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the schematic block circuit diagram of a kind of embodiment of the air-conditioner outdoor fan control circuit that proposes of the utility model;
Fig. 7 is to controlling the control flow chart of a kind of embodiment of air-conditioner outdoor fan with wind speed according to ambient wind;
Fig. 8 is to be the three-step timing blower fan for outdoor fan, and ambient wind is when blowing to air outlet by the air inlet of outdoor fan, the corresponding relation oscillogram of ambient wind velocity and outdoor fan rotating speed;
Fig. 9 is to be the three-step timing blower fan for outdoor fan, and ambient wind is when blowing to air inlet by the air outlet of outdoor fan, the corresponding relation oscillogram of ambient wind velocity and outdoor fan rotating speed.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in detail.
The present embodiment is for present air-conditioner, the air-out direction of its off-premises station is fixed, and the outdoor environment wind direction has very strong randomness, thereby affect the problem of off-premises station heat transfer effect, proposed a kind ofly can automatically regulate according to the variation of outdoor environment wind direction the technology of the air-out direction of air-conditioner outdoor fan, and then under the prerequisite that guarantees the abundant heat exchange of heat exchanger, significantly reduced the operation power consumption of off-premises station, realized the efficient operation of air-conditioner complete machine.
As shown in Figure 4, regulate in order to realize the intellectuality that outdoor fan turns to, the present embodiment at first set up on the off-premises station of air-conditioner for detection of ambient wind to measuring instrument 2, by measuring instrument 2 generate represent ambient wind to detection signal, transfer to the master control borad in off-premises station, and then utilize primary control program to determine the suitable air-out direction of outdoor fan, realize the commutation of outdoor fan is controlled.
For present air-conditioner, air outlet 4 operated by rotary motion of off-premises station are on the front panel 3 of outdoor set cabinet, as shown in Figure 4, the air inlet operated by rotary motion is on the backboard of outdoor set cabinet, outdoor fan 5 is installed in casing, when the outdoor fan forward, by the air inlet air draught, by the outside air draft of air outlet 4.Be subjected to outdoor fan 5 to go out Wind effect for fear of measuring instrument 2, the present embodiment preferably is arranged on the outside of outdoor set cabinet with described measuring instrument 2, and is positioned on the top board 1 of casing, to guarantee that ambient wind is to the accuracy that detects.For the consideration of off-premises station overall aesthetics aspect, the present embodiment preferably is arranged on described measuring instrument 2 middle part of casing top board 1, and is shown in Figure 5.
Certainly, described measuring instrument 2 also can be arranged on other positions of off-premises station, as long as can guarantee abundant contact chamber external environment and avoid air inlet and the air outlet of off-premises station, the present embodiment be not limited in above for example.
The wind direction detection signal that measuring instrument 2 is detected output transfers to the controller on the off-premises station master control borad, be used for controlling to generating the control signal that outdoor fan turns to according to ambient wind by controller, export drive circuit to, and then realize the driving of outdoor fan is controlled by drive circuit, realize the automatic adjusting of outdoor fan air-out direction.
In order to strengthen heat transfer effect, when ambient wind blows to the air outlet of off-premises station, when namely the air-out direction of ambient wind to the outdoor fan forward time is relative, for example shown in Figure 1 over against situation, control the outdoor fan counter-rotating, by air outlet air draught, the air inlet air-out of off-premises station.At this moment, the air-out of ambient wind and outdoor fan blows to heat exchanger in off-premises station together, and the air quantity by heat exchanger is increased, and improves heat exchange efficiency.Otherwise when ambient wind blowed to the air inlet of off-premises station, namely the air-out direction of ambient wind to the outdoor fan forward time was in opposite directions the time, and for example consistent situation shown in Figure 2, control the outdoor fan forward, by air inlet air draught, the air outlet of off-premises station.At this moment, ambient wind blows to the heat exchanger in off-premises station, the heat that outdoor fan absorption heat-exchange device distributes, and be discharged into ambient atmosphere, by working along both lines, accelerate the heat transfer rate.
In order to satisfy the commutation requirement of outdoor fan, for transducer air conditioning, can select the three-phase alternating current blower fan as described outdoor fan, be used for heat exchanger and dispel the heat.As shown in Figure 6, in order to realize that the driving of three-phase alternating current blower fan is controlled, the present embodiment has designed frequency converter and reversing switch K1, K2 in drive circuit.To transfer to the feeder ear of three-phase alternating current blower fan via reversing switch K1, K2 by three-phase alternating-current supply U, V, the W that frequency converter is exported.Described reversing switch K1, K2 preferably adopt A.C. contactor to carry out circuit design, receive controller according to ambient wind to the switch controlling signal that produces and export, and then by controlling reversing switch K1 conducting, K2 shutoff (perhaps reversing switch K2 conducting, K1 turn-off), change the sequential of the three-phase alternating-current supply that is applied to the three-phase alternating current blower fan, realize the commutation of three-phase alternating current blower fan is controlled.
In order to guarantee safe power supply, need two groups of A.C. contactor K1, K2 are carried out interlocking design on circuit design, the i.e. normally-closed contact of series connection A.C. contactor K2 in the coil power supply loop of A.C. contactor K1, and in the coil power supply loop of A.C. contactor K2 the normally-closed contact of series connection A.C. contactor K1, thereby can guarantee to only have the AC power of one group of sequential to transfer to the feeder ear of three-phase alternating current blower fan at synchronization, control three-phase alternating current blower fan forward or counter-rotating.
For when improving heat transfer effect, reduce the power consumption of outdoor fan, the present embodiment also is provided with wind speed detection device on described off-premises station, preferably be built in described measuring instrument 2, namely select wind speed/wind direction measuring instrument to be arranged on the top board 1 of outdoor set cabinet, with satisfy to ambient wind to the synchronous testing requirement of ambient wind velocity.
To detect the wind speed detection signal of exporting by wind speed/wind direction measuring instrument and transfer to outdoor controller, generate speed controling signal by controller according to the wind speed size, export the frequency converter in drive circuit to, change the frequency of the AC power that exports outdoor fan to by frequency converter, and then realize the intellectuality of outdoor fan rotating speed is regulated.
Certainly, described outdoor fan also can adopt dc fan to carry out system, changes phase sequence and the size of current of the power supply that transfers to dc fan by drive circuit, to realize that dc fan is turned to adjusting with rotating speed.
Based on the structural design of above-mentioned air-conditioner outdoor unit, below in conjunction with Fig. 7, turning to the concrete control method of rotating speed of air-conditioner outdoor fan at length set forth.
S701, control air-conditioner start operation, select operational mode, i.e. refrigerating operaton pattern or heating operation pattern.
S702, startup wind speed/wind direction measuring instrument, the wind direction of sensing chamber's external environment and wind speed;
In the present embodiment, preferably utilize ambient wind velocity V component of air-out direction when the outdoor fan forward to judge for the detection of outdoor environment wind direction, as shown in Figure 3.What arrange on the front panel of setting outdoor set cabinet is air outlet, what arrange on backboard is air inlet, certainly, also air inlet can be set simultaneously also on the side plate of the left and right sides of casing, during with the outdoor fan forward, the air-out direction of (by the air inlet air draught of off-premises station, outdoor fan corresponding during air outlet turns to) is set as the direction of X-axis, the component V0 of computing environment wind speed V on X-axis, be V0=v*cos α, v is the absolute value of ambient wind velocity size.If component V0 is negative value, judge that ambient wind blows to air inlet by the air outlet of off-premises station, the air-out direction during namely with the outdoor fan forward is relative.Fig. 1 show the air-out wind direction of ambient wind to the outdoor fan forward time over against limiting case, namely the angle between both is 180 °, this moment V0=-v, the wind speed that blows to off-premises station is maximum.If component V0 be on the occasion of, judge that ambient wind blows to air outlet by the air inlet of off-premises station, the air-out direction during namely with the outdoor fan forward in opposite directions.Fig. 2 shows the air-out wind direction consistent limiting case of ambient wind to the outdoor fan forward time, and namely the angle between both is 0 °, this moment V0=v.
For the wind speed size that is blown into the ambient wind in off-premises station, the present embodiment absolute value V of component V0
FRepresent.
S703, according to ambient wind to determining turning to of outdoor fan;
In the present embodiment, in order to take full advantage of ambient wind, the heat exchanger in off-premises station is carried out heat exchange, when the air outlet of ambient wind by off-premises station being detected and blow to air inlet, be component V0 when being negative value, control the outdoor fan counter-rotating, from the air outlet air draught, the air inlet air draft, make the air-out direction of outdoor fan and ambient wind in opposite directions, together blow to heat exchanger, to improve heat transfer effect.
Otherwise, when the air inlet of ambient wind by off-premises station being detected and blow to air outlet, be component V0 on the occasion of the time, control the outdoor fan forward, make outdoor fan by the air inlet air draught, air outlet air draft, i.e. air-out direction X-direction as shown in Figure 3, the air-out direction of outdoor fan and ambient wind in opposite directions, can be accelerated the heat transfer rate of heat exchanger at this moment.
S704, determine the rotating speed of outdoor fan according to the wind speed of ambient wind;
In the present embodiment, consider that the type of the outdoor fan that different air-conditioners is selected is different, what have selects the infinitely variable speeds blower fan, and what have selects the multistep speed regulation blower fan, and what have selects the single speed blower fan.Therefore, for dissimilar outdoor fan, the present embodiment proposes following several preferred modes of speed regulation:
(1) when outdoor fan is the infinitely variable speeds blower fan, can utilize following formula to calculate the rotating speed R of outdoor fan:
Work as V
FDuring≤A,
Work as V
FDuring 〉=A, R=0, namely outdoor fan is shut down.
Wherein,
A is for satisfying the heat exchange requirement of outdoor unit heat exchanger, the default air speed value through heat exchanger surface, and described air speed value A can obtain by test.As a kind of preferred design of the present embodiment, when ambient wind blowed to air outlet by the air inlet of off-premises station, described A is value between 1.5 ~ 3.0m/s preferably; When ambient wind blowed to air inlet by the air outlet of off-premises station, described A is value between 4.5 ~ 6.0m/s preferably.
R
HIt is the maximum (top) speed of outdoor fan; This numerical value R
HCan obtain by the technical manual of searching blower fan.
R
LIt is the minimum speed of outdoor fan; This numerical value R
LAlso can obtain by the technical manual of searching blower fan.
Consider in the situation that the outdoor environment wind speed is larger, even do not start outdoor fan, only utilize ambient wind can satisfy the situation of heat exchanger heat exchange requirement, the present embodiment is set and is worked as V
FDuring 〉=A, when namely being blown into ambient wind in off-premises station and can requiring with the heat exchange of satisfying outdoor unit heat exchanger completely, shut down by controlling outdoor fan, to reduce the Overall Power Consumption of air-conditioner, reach energy-saving and cost-reducing designing requirement.
(2) (control outdoor fan and operate on a plurality of different rotating speeds by a plurality of gears are set) when outdoor fan is the multistep speed regulation blower fan, can adopt following two kinds of speed control strategies:
The first: at first utilize the rotating speed computing formula of above-mentioned (1) described infinitely variable speeds blower fan to calculate the rotating speed R of outdoor fan, then determine the gear of outdoor fan according to rotating speed R.Because the rotating speed that the different gears of multistep speed regulation blower fan are corresponding is different, if the rotating speed R that calculates just between two grades of wind speed, chooses in two grades the wind speed operation of larger a grade, with abundant assurance heat exchange requirement.
In like manner, work as V
FDuring 〉=A, control outdoor fan and shut down, to reduce Overall Power Consumption.
It two is: ambient wind velocity is divided into several intervals, sets outdoor fan for different intervals and operate in different gears.Be specifically described as an example of the three-step timing blower fan example, namely outdoor fan may operate in high, medium and low three gears, and concrete control strategy is as follows:
If 1. ambient wind blows to air outlet by the air inlet of off-premises station, namely component V0 be on the occasion of, and ambient wind velocity is when in rising trend, according to the absolute value V of the component of ambient wind velocity V on X-direction
FThe gear of determining outdoor fan is as follows, in conjunction with shown in Figure 8:
If ambient wind velocity is lower, make V
F≤ V
11, V
11Value between 1.0 ~ 1.5m/s, the gear that outdoor fan is set is high tap position, control outdoor fan and run up, the corresponding rotating speed of described high tap position can be in the scope of 820 ~ 880rpm value;
If ambient wind velocity rises, make V
FSurpass V
11The time, i.e. V
11＜V
F≤ V
12, V
12Value between 1.5 ~ 2.0m/s, the gear that outdoor fan is set is middle gear, controls the running of outdoor fan middling speed, the corresponding rotating speed of described middle gear can be in the scope of 650 ~ 720rpm value;
If ambient wind velocity continues to rise, make V
FSurpass V
12The time, i.e. V
12＜V
F≤ V
13, V
13Value between 2.0 ~ 3.0m/s, the gear that outdoor fan is set is low-grade location, controls the outdoor fan low-speed running, the corresponding rotating speed of described low-grade location can be in the scope of 450 ~ 550rpm value;
If ambient wind velocity increases, make V
FSuper to V
13, i.e. V
FV
13, control outdoor fan and shut down, directly utilize ambient wind to be the heat exchanger heat exchange.
If 2. ambient wind blows to air outlet by the air inlet of off-premises station, but ambient wind velocity is on a declining curve, the speed control strategy of outdoor fan is:
If current outdoor fan is shut down, and V
FV
14, V
14Value between 1.5 ~ 2.0m/s keeps outdoor fan to be in stopped status;
If ambient wind velocity descends, make V
FDrop to V
14, control outdoor fan and start, and work as V
15＜V
F≤ V
14, V
15During value, control outdoor fan with the low-grade location low-speed running between 1.0 ~ 1.5m/s;
If ambient wind velocity continues to descend, make V
16＜V
F≤ V
15, V
16Value between 0.5 ~ 1.0m/s is controlled outdoor fan and is turned round with middle gear middling speed;
If ambient wind velocity descends, make V
F≤ V
16, control outdoor fan and run up with high tap position.
If 3. ambient wind blows to air inlet by the air outlet of off-premises station, namely component V0 is negative value, and ambient wind velocity is when in rising trend, according to the absolute value V of the component of ambient wind velocity V on X-direction
FThe gear of determining outdoor fan is as follows, in conjunction with shown in Figure 9:
When ambient wind velocity is low, i.e. V
F≤ V
21, V
21During value, control outdoor fan and run up with high tap position between 4.0 ~ 4.5m/s;
When ambient wind velocity raises, make V
21＜V
F≤ V
22, V
22During value, control outdoor fan and turn round with middle gear middling speed between 4.5 ~ 5.0m/s;
When ambient wind velocity continues to raise, make V
22＜V
F≤ V
23, V
23During value, control outdoor fan with the low-grade location low-speed running between 5.0 ~ 6.0m/s;
And be elevated to enough when large i.e. V when ambient wind velocity
FV
23The time, control outdoor fan and shut down, directly utilize ambient wind to be the heat exchanger heat exchange.
If 4. ambient wind blows to air inlet by the air outlet of off-premises station, and ambient wind velocity is on a declining curve,
If current outdoor fan is shut down, and V
FV
24, V
24During value, keep outdoor fan to be in stopped status between 4.5 ~ 5.0m/s, still adopting ambient wind is the heat exchanger heat exchange;
If ambient wind velocity descends, make V
FDrop to V
24, control outdoor fan and start, and at V
25＜V
F≤ V
24, V
25During value, control outdoor fan with the low-grade location low-speed running between 4.0 ~ 4.5m/s;
When ambient wind velocity descends, make V
26＜V
F≤ V
25, V
26During value, control outdoor fan and turn round with middle gear middling speed between 3.5 ~ 4.0m/s;
And when ambient wind velocity drops to reduced levels, i.e. V
F≤ V
26The time, control outdoor fan and run up with high tap position, to guarantee the heat exchange requirement of heat exchanger.
For the assurance system is reliable, stable operation, controls at the rotating speed of outdoor fan and should consider following 2 points:
The first, for the rotating speed that prevents outdoor fan frequently switches, V
11Should be less than V
16, V
12Should be less than V
15, V
13Should be less than V
14, V
21Should be less than V
26, V
22Should be less than V
25, V
23Should be less than V
24If outdoor fan is multistep speed regulation blower fan or infinitely variable speeds blower fan, should require outdoor fan just to allow to change wind speed after a period of time at continuous operation under a certain wind speed.
It two is under the outdoor fan Reversion, to set each interval critical condition value V
21, V
22, V
23, V
24, V
25, V
26Should be greater than each interval critical condition value V in off-premises station forward situation
11, V
12, V
13, V
14, V
15, V
16, and at least greater than 2 ~ 3 times, even larger.This is mainly for the consideration to following two aspect factors:
A, when the air-out direction when ambient wind to the outdoor fan forward time is relative, through the effective wind rate of outdoor unit heat exchanger less than the effective wind rate of the air-out direction to the outdoor fan forward time in opposite directions time the when ambient wind;
The refrigerant flow path of b, outdoor unit heat exchanger generally considers according to when refrigeration, and namely during the air-conditioner refrigerating operaton, refrigerant first passes through interior row, then through effluxing, in outdoor fan forward situation, air-out is opposite with the refrigerant flow direction, and the coefficient of heat transfer is larger; And under the outdoor fan Reversion, air-out is consistent with the refrigerant flow direction, and the coefficient of heat transfer is less.Therefore, for satisfying the heat exchange requirement, need to be achieved by improving air quantity.Certainly, be single situation for heat exchanger, this point can not considered.
(3) when described outdoor fan is the single speed blower fan; namely can only be according to the blower fan of unique fixed rotating speed running; its method of operation can be controlled according to the second control strategy of above-mentioned (2) described multistep speed regulation blower fan; difference is; judge with the condition of shutting down and run up; when being judged as when high, medium and low, all process according to the outdoor fan running.Namely
If 1. ambient wind blows to air outlet by the air inlet of off-premises station, namely component V0 be on the occasion of, and ambient wind velocity is in rising trend,
When ambient wind velocity is low, i.e. V
F≤ V
13, V
13During value, control outdoor fan and start running between 2.0 ~ 3.0m/s;
When ambient wind velocity raises, make V
FV
13The time, control outdoor fan and shut down, directly utilize the heat exchange of ambient wind heat exchanger;
If 2. ambient wind blows to air outlet by the air inlet of off-premises station, and ambient wind velocity is when on a declining curve,
If current outdoor fan is shut down, and V
FV
14, V
14Value between 1.5 ~ 2.0m/s keeps outdoor fan to be in stopped status;
If ambient wind velocity descends, make V
FDrop to V
14, control outdoor fan and start operation, be the heat exchanger heat exchange together with ambient wind;
If 3. ambient wind blows to air inlet by the air outlet of off-premises station, namely component V0 is negative value, and ambient wind velocity is when in rising trend,
When ambient wind velocity lower, V
F≤ V
23, V
23During value, control outdoor fan and start running between 5.0 ~ 6.0m/s, turn round with fixed rotating speed;
When ambient wind velocity raises, make V
FV
23The time, control outdoor fan and shut down, be directly the outdoor unit heat exchanger heat exchange by ambient wind;
If 4. ambient wind blows to air inlet by the air outlet of off-premises station, and ambient wind velocity is on a declining curve,
If current outdoor fan is shut down, and V
FV
24, V
24Value between 4.5 ~ 5.0m/s keeps outdoor fan to be in stopped status;
If ambient wind velocity descends, make V
FDrop to V
24, control outdoor fan and start running, be heat exchanger blowing heat exchange.
S705, judge whether to receive halt instruction, if do not receive halt instruction, return to that the turning to of outdoor fan carried out in step S703 circulation, rotating speed is controlled; If receive halt instruction, control the off-premises station complete machine and shut down.
The present embodiment to rotating speed and the turn-around design control strategy of outdoor fan, under the prerequisite that the heat exchange of satisfying outdoor unit heat exchanger requires, can effectively reduce the power consumption of off-premises station for the working environment of air-conditioner outdoor unit, realizes the efficient operation of air-conditioning products.
Certainly; the above is only a kind of preferred embodiment of the present utility model, for those skilled in the art, and under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. air-conditioner outdoor fan control circuit, comprise the controller, drive circuit and the outdoor fan that are arranged in air-conditioner outdoor unit, it is characterized in that: also be provided with on described off-premises station for detection of ambient wind to measuring instrument, described measuring instrument generates detection signal and exports controller to, described controller exports drive circuit according to ambient wind to generating control signal, regulates turning to of outdoor fan by drive circuit.
2. air-conditioner outdoor fan control circuit according to claim 1, it is characterized in that: described outdoor fan is the three-phase alternating current blower fan, connects frequency converter by the reversing switch in drive circuit, receives the three-phase alternating-current supply of frequency converter output; Described reversing switch receives the switch controlling signal of controller output, regulates turning to of outdoor fan by the phase sequence that changes described three-phase alternating-current supply.
3. air-conditioner outdoor fan control circuit according to claim 2, it is characterized in that: also be provided with wind speed detection device on described off-premises station, generate the wind speed detection signal according to ambient wind velocity and export described controller to, described controller connects frequency converter, the frequency of the three-phase alternating-current supply by changing frequency converter output is regulated the rotating speed of outdoor fan.
4. air-conditioner outdoor fan control circuit according to claim 3, it is characterized in that: described wind speed detection device is built in described measuring instrument.
5. the described air-conditioner outdoor fan of any one control circuit according to claim 1 to 4, it is characterized in that: described measuring instrument is arranged on the outside of outdoor set cabinet, and is positioned on the top board of casing.
6. air-conditioner outdoor fan control circuit according to claim 5, it is characterized in that: described measuring instrument is arranged on the middle part of casing top board.
7. air-conditioner, comprise indoor set and off-premises station, be provided with controller, drive circuit and outdoor fan in described off-premises station, it is characterized in that: also be provided with on described off-premises station for detection of ambient wind to measuring instrument, described measuring instrument generates detection signal and exports controller to, described controller exports drive circuit according to ambient wind to generating control signal, regulates turning to of outdoor fan by drive circuit.
8. air-conditioner according to claim 7, it is characterized in that: also be provided with wind speed detection device on described off-premises station, generate the wind speed detection signal according to ambient wind velocity and export described controller to, control by controller the rotating speed that drive circuit is regulated outdoor fan.
9. air-conditioner according to claim 8, it is characterized in that: described wind speed detection device is built in described measuring instrument, and described measuring instrument is arranged on the outside of outdoor set cabinet, and is positioned on the top board of casing.
10. the described air-conditioner of any one according to claim 7 to 9, it is characterized in that: on described off-premises station, air outlet and air inlet are separately positioned on the front panel and backboard of casing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220737709 CN203010850U (en) | 2012-12-28 | 2012-12-28 | Control circuit of air conditioner outdoor fan and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737709 CN203010850U (en) | 2012-12-28 | 2012-12-28 | Control circuit of air conditioner outdoor fan and air conditioner |
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| CN203010850U true CN203010850U (en) | 2013-06-19 |
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| CN 201220737709 Expired - Fee Related CN203010850U (en) | 2012-12-28 | 2012-12-28 | Control circuit of air conditioner outdoor fan and air conditioner |
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| CN (1) | CN203010850U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317696A (en) * | 2018-02-10 | 2018-07-24 | 广东美的制冷设备有限公司 | Control method, device and the computer readable storage medium of air conditioner |
| CN109114750A (en) * | 2018-07-10 | 2019-01-01 | 青岛海尔空调器有限总公司 | Control method, device and the computer readable storage medium of air-conditioner outdoor unit |
| CN109282432A (en) * | 2018-09-19 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of blower starts control method, device and air-conditioner set with the wind |
| CN111322736A (en) * | 2020-03-10 | 2020-06-23 | 青岛海尔空调器有限总公司 | Air conditioner external unit control method and device and air conditioner system |
| CN111780351A (en) * | 2020-06-19 | 2020-10-16 | 宁波奥克斯电气股份有限公司 | External fan control method and device, air conditioner and storage medium |
| CN111998514A (en) * | 2020-09-08 | 2020-11-27 | 佛山市顺德区美的电子科技有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN112229038A (en) * | 2019-07-15 | 2021-01-15 | 青岛海尔空调器有限总公司 | Control method for air conditioner and air conditioner |
-
2012
- 2012-12-28 CN CN 201220737709 patent/CN203010850U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317696A (en) * | 2018-02-10 | 2018-07-24 | 广东美的制冷设备有限公司 | Control method, device and the computer readable storage medium of air conditioner |
| CN109114750A (en) * | 2018-07-10 | 2019-01-01 | 青岛海尔空调器有限总公司 | Control method, device and the computer readable storage medium of air-conditioner outdoor unit |
| CN109282432A (en) * | 2018-09-19 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of blower starts control method, device and air-conditioner set with the wind |
| CN112229038A (en) * | 2019-07-15 | 2021-01-15 | 青岛海尔空调器有限总公司 | Control method for air conditioner and air conditioner |
| CN112229038B (en) * | 2019-07-15 | 2021-10-29 | 青岛海尔空调器有限总公司 | Control method for air conditioner and air conditioner |
| CN111322736A (en) * | 2020-03-10 | 2020-06-23 | 青岛海尔空调器有限总公司 | Air conditioner external unit control method and device and air conditioner system |
| CN111780351A (en) * | 2020-06-19 | 2020-10-16 | 宁波奥克斯电气股份有限公司 | External fan control method and device, air conditioner and storage medium |
| CN111780351B (en) * | 2020-06-19 | 2022-07-12 | 宁波奥克斯电气股份有限公司 | External fan control method and device, air conditioner and storage medium |
| CN111998514A (en) * | 2020-09-08 | 2020-11-27 | 佛山市顺德区美的电子科技有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
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