JP3626450B2 - Power saving control method for air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power saving control method for an air conditioner, and more specifically, power consumption can be reduced by adjusting an air flow vortex generated during the operation of the vertical and horizontal wind direction devices of the air conditioner. The present invention relates to a power saving control method for an air conditioner.
[0002]
[Prior art]
In general, an air conditioner is a device that comfortably maintains indoor air using cold / hot air generated from a refrigeration cycle. The refrigeration cycle reversibly compresses, condenses, expands, and evaporates refrigerant. By performing the above, the cooling and heating are performed.
[0003]
And in the refrigeration cycle of the conventional air conditioner, as shown in FIG. 15, the capillary tube 10 that lowers the pressure of the refrigerant, the indoor fan 11, and the evaporator 12 that converts the liquid refrigerant into a gas state, It was comprised with the condenser 13 which condenses a refrigerant | coolant and converts a gaseous state into a liquid state, and the compressor 14 which compresses a refrigerant | coolant.
[0004]
Hereinafter, the operation of the conventional refrigeration cycle configured as described above will be described.
[0005]
First, when the user presses the operation key of the air conditioner, the compressor 14 is operated and the refrigerant is compressed, and the compressed refrigerant is condensed by the condenser 13 and converted into a liquid state from a gas state to heat the outdoor. After discharge into the machine, the pressure is reduced by the capillary tube 10.
[0006]
Next, the refrigerant whose pressure has been reduced cools the surface of the evaporator 12 while being evaporated from the liquid state to the gas state by the evaporator 12, while the surface of the evaporator 12 in which the indoor air sucked from the indoor fan 11 is cooled. In order to exchange heat while passing through, cold air is blown into the room to lower the temperature in the room.
[0007]
And like thisColdIn an air conditioner equipped with a refrigeration cycle, as shown in FIG. 16, the air intake unit 25, the evaporator 23 that converts liquid into gas and evaporates, and the indoor temperature is sensed and controlled. The indoor intake temperature sensor 24, the indoor unit fan 22, and the vertical airflow direction vane 21 and the horizontal airflow direction vane 20 that adjust the cooling airflow discharged from the refrigeration cycle of the air conditioner in the vertical direction and the horizontal direction, respectively. When the user sets a desired temperature, the indoor intake temperature sensor 24 on the intake unit 25 side of the air conditioner measures the indoor temperature, and the measured temperature is lower than the lower limit value of the set temperature of the user. When the temperature is low, the operation of the compressor 14 is interrupted, and when the measured temperature is higher than the upper limit value of the set temperature, while the operation of operating the compressor 14 is repeated, the indoor temperature is the upper limit value and lower limit value of the set temperature. Keep between.
[0008]
Next, when the cooling airflow is released by the operation of the compressor 14 in this way, the direction of the released cooling airflow is adjusted by the swinging of the up-and-down airflow direction vane 21 and the left-right airflow direction vane 20.
[0009]
At this time, in the indoor distribution state of the cooling airflow discharged from the conventional air conditioner, as shown in FIG. 17, when the up-and-down airflow direction vane 21 and the left-right airflow direction vane 20 of the air conditioner do not swing, Since airflow flows not only in the living room where the user is located, but also in all rooms including the kitchen and kitchen, in some cases, cooling is performed to unnecessary areas, and therefore only the temperature of the living room is reduced to the set temperature. When the air conditioner is desired, the operation time of the air conditioner takes a long time and energy is wasted.
[0010]
In addition, since the air conditioner sends cool discharge air that is considerably lower than the room temperature into the room, there is a drawback that the room temperature inevitably generates a difference in temperature between the top and bottom and the temperature difference between the left and right, and the occupants suddenly feel a cold feeling. is there.
[0011]
Therefore, in order to reduce the vertical temperature difference and the horizontal temperature difference, as shown in FIGS. 18A and 18B, the vertical wind vane 21 is moved in the vertical direction at a predetermined cycle by using the vertical swing function. The left and right temperature vane 20 is automatically and repeatedly changed in the left and right directions at a predetermined cycle by using the left and right auto swing function to reduce the left and right temperature difference. It was.
[0012]
Here, the vertical temperature difference is 0. 0 from the indoor floor surface. Measure the temperature at the point 1m and the point 1.1m from the indoor floor to show the difference between them. The left-right temperature difference is the temperature distribution on the horizontal plane at a predetermined height from the indoor floor. It shows the difference between the maximum temperature and the minimum temperature.
[0013]
[Problems to be solved by the invention]
However, in such a conventional air conditioner, the vertical direction automatic swing function and the horizontal direction automatic swing function are repeatedly performed regardless of the operating state and time of the compressor to adjust the wind direction. Therefore, there is a disadvantage in that there is a limit to quickly and uniformly reducing the vertical temperature difference and the horizontal temperature difference.
[0014]
The present invention has been made in view of such conventional problems, and by controlling the airflow of the air conditioner at a short distance, the time to reach the set temperature is shortened and speeded up, and the power consumption is reduced. An object of the present invention is to provide a power saving control method for an air conditioner.
[0015]
In addition, another object of the present invention is to quickly reduce and equalize the vertical and horizontal wind directions of the air conditioner, the vertical and horizontal temperature differences, and the temperature difference in the horizontal direction. An object of the present invention is to provide a power-saving control method for an air conditioner that can provide a comfortable air-conditioning environment to occupants by checking the exposed time and automatically controlling the room temperature.
[0016]
[Means for Solving the Problems]
In order to achieve such an object, in the power-saving control method for an air conditioner according to the present invention, a power-saving operation input stage in which a user sets a desired indoor temperature and inputs it to the air-conditioner; TemperaturepluralA division stage for dividing into predetermined areas, a control stage for automatically controlling the indoor temperature, the indoor air volume, the up / down air direction vanes and the left / right air direction vanes according to each of the divided areas, and an air conditioner corresponding to the controlled indoor temperature. The operation time is checked, and the rising stage to automatically increase the room temperature is sequentially performed,
At the segmentation stage
The temperature set by the user is T5 When the same as (℃) or higher, 1 Judging as an area,
Measuring the indoor temperature and determining whether or not the compressor of the air conditioner can be operated based on a difference between the measured temperature and a set temperature desired by the user;
Based on the determination result, controlling the indoor air volume, the descending speed of the vertical wind direction vane, the ascending speed of the vertical wind direction vane, and the horizontal swing speed of the horizontal wind direction vane;
SequentiallyDo or
In the control phase,
When the compressor of the air conditioner is in operation, the indoor air volume is controlled to be strong wind, and the descending speed of the vertical wind vane is higher than the ascending speed. 2 Driven twice as fast and controls the swing speed of the right and left wind direction vanes to be the same.On the other hand, when the compressor is stopped, the indoor air volume is controlled to be weak and the descending speed of the up and down wind direction vanes is higher than the rising speed. 2 Driven twice as slow, and the swing speed of the right and left wind direction vanes is faster than when operating Three Control to swing twice as slow,
At the stage of determining availability,
The room temperature is lower than the user's desired set temperature. 0.5 When the temperature is higher than (℃), the compressor is operated and the room temperature is lower than the user's desired set temperature. 0.5 (℃) When the temperature is lower than the compressor,
At the segmentation stage
The user's desired set temperature is T5 (C) lower than T1 (C) higher or similar, 2 Judging as an area,
Measuring the indoor temperature and determining whether or not the compressor of the air conditioner can be operated based on a difference between the measured temperature and a set temperature desired by the user;
Operating the compressor for a driving time corresponding to the initial indoor set temperature according to the determination result, and controlling the indoor air volume, the descending speed of the upper and lower wind direction vanes, the rising speed of the upper and lower wind direction vanes and the left and right swing speed of the left and right wind vanes; ,
When the drive time ends, the room temperature T5 Set the room temperature to (° C). 1 (C) step by step and control,
Or sequentially
At the segmentation stage
The temperature set by the user is T1 (C) higher or similar, Three Judging as an area,
Measuring the indoor temperature and determining whether or not the compressor of the air conditioner can be operated based on a difference between the measured temperature and a set temperature desired by the user;
When operating the compressor, the initial indoor set temperature is unconditional. T1 (° C), and controlling the indoor air volume, the descending speed of the vertical wind direction vane, the rising speed of the vertical wind direction vane, and the left and right swing speed of the left and right wind direction vane corresponding to it,
When the drive time ends, the room temperature T5 Set the room temperature to (℃) 1 (C) step by step and control,
Or sequentially
When the air conditioner performs heating operation at the control stage,
When the compressor is in operation, the downward swing speed of the vertical wind vane is driven slower than the upward swing speed. When the compressor is stopped, the downward swing speed of the vertical wind vane is higher than the upward swing speed. Fast drive To letIt is a feature.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
In the air conditioner according to the present invention, as shown in FIG. 1, an indoor temperature sensor unit 501 that senses the indoor temperature, and a compressor operating state sensor that senses the operating state of the compressor and controls the indoor wind direction. Unit 502, temperature control time check unit 503 for checking indoor temperature control time, indoor fan drive unit 505 for driving indoor fan 509, vertical wind direction vane drive unit 506 for driving vertical wind direction vane 510, and left and right wind direction vane The left and right wind direction vane driving unit 507 for driving 511, the compressor driving unit 508 for driving the compressor 512, the indoor fan driving unit 505, the up and down wind direction vane driving unit 506, and the left and right wind direction vane drive according to preset control logic. A microcomputer (hereinafter abbreviated as a microcomputer) 504 for controlling the unit 507 and the compressor driving unit 508, and It is more configuration.
[0019]
Hereinafter, the power-saving control operation and method of the air conditioner according to the present invention configured as described above will be described with reference to the drawings.
[0020]
FIGS. 2 to 5 are flowcharts showing a process of controlling by using up and down and left and right wind direction vanes as the power saving control method of the air conditioner according to the present invention. FIG. 11B is a table showing the power saving control time in the air conditioner power saving control method according to the present invention. After the user selects the power saving operation of the air conditioner, the desired room temperature is set. At this time, the set temperature (Tu) can be selected in units of 1 ° C. within a range of 18 to 30 ° C.
[0021]
That is, as shown in FIGS. 2 and 3, when the power saving operation is selected by the user, the power saving timer is operated, and at the same time, the microcomputer 504 in FIG. 1 divides the set temperature of the user into three regions. The operation time and the room temperature of the air conditioner are checked corresponding to each region, and the room temperature, the air volume, the up and down air direction, and the left and right air direction are automatically controlled.
[0022]
Here, the three areas are areas divided by a set temperature (Tu), the first area corresponds to a person who likes a warm temperature, and the second area corresponds to a person who likes a general temperature. The third region shows a region corresponding to a person who prefers a slightly cooler temperature.
[0023]
Next, when the user sets a desired room temperature, the microcomputer 504 determines the set temperature, and when the set temperature is greater than or equal to T5 (° C.), the compression is performed in the first region. When the set temperature is smaller than T5 (° C.) and greater than or equal to T1 (° C.), the compressor 512 is operated in the second region, and the set temperature is greater than T1 (° C.). Is smaller, the compressor 512 is operated in the third region.
[0024]
As shown in (1), for example, when the user selects a temperature that is the same as or higher than T5 (° C.), the microcomputer 504 automatically controls with the logic corresponding to the first area. The room temperature is measured using the room temperature sensor unit 501 attached to the front side of the indoor heat exchanger of the air conditioner, and the measured room temperature is 0.5 ° C. or more higher than the set temperature (Tu). When the compressor 512 is operated until the set temperature is reached, the indoor air volume is increased during the operation time (time 5) according to the set temperature (T5), and the descending speed (Vd.on) of the vertical wind direction vane 510 is increased. Is 1 Vd. on (bps), the rising speed (Vu.on) of the up-and-down wind vane 510 is 0.5 Vu. on (bps), and the rocking speed (Vr.on) of the left and right wind vanes 511 is 3 Vr. Each is controlled to on (11).
[0025]
As described above, when the air conditioner is operated and the indoor temperature is lowered by 0.5 ° C. from the set temperature (Tu), the driving of the compressor 512 is stopped.
[0026]
Here, the unit bps (Bit Per Second) representing the speed of the air volume is a control unit of the stepping motor, and as the unit value increases, the vertical and horizontal wind direction vanes 510 and 511 connected to the stepping motor. This means that the rocking speed (Vr.on) of the motor becomes faster.
[0027]
That is, the rising speed of the vertical wind vane 510 is twice as slow as the descending speed, and the swing speed (Vr.on) of the left and right wind vanes 511 is determined by the swing speed to the left and the swing speed to the right. In the same manner, it swings three times faster than when the compressor 512 stops.
[0028]
Next, when the driving of the compressor 512 is stopped, the indoor air volume becomes weak, the descending speed (Vd, off) of the vertical wind direction vane 510 becomes 1 Vd, off, and the ascending speed (Vu of the vertical vane 510). , Off) becomes 2 Vd, off, and rises twice as fast as the descent speed. Further, the rocking speed (Vr, off) of the left and right wind direction vanes 511 is 1 Vr. It is off, and the reciprocating rocking is performed three times slower than the rocking speed 3 Vr, on of the left and right wind direction vanes 511 when the compressor 512 is operated (12).
[0029]
On the other hand, as shown in (2), when the set temperature (Tu) is the same as or larger than Tl (° C.) and smaller than T 5 (° C.), the power saving operation corresponding to the second region is automatically controlled. Is done.
[0030]
That is, since the initial indoor set temperature (Tc) of the air conditioner for operating the air conditioner in the power saving mode of the second region is controlled by the set temperature (Tu), the operation of the compressor 512 is performed. Thus, the indoor air volume is controlled to be strong wind, the descending speed (Vd, on) of the vertical wind direction vane 510 is 1 Vd, on (bps), and the ascending speed (Vu, on) of the vertical wind direction vane 510 is 0.5 Vd, on (bps), and therefore, the rising speed of the vertical wind vane 510 is twice as slow as the descending speed.
[0031]
Further, the rocking speed (Vr, on) of the left and right wind direction vanes 511 is 3 Vr. On, the rocking speed to the left and the rocking speed to the right are the same, and rocks three times faster than when the compressor 512 is stopped (21).
[0032]
Next, when the room temperature reaches the set temperature (Tu), the driving of the compressor 512 is stopped, so that the indoor air volume becomes weak and the descending speed (Vd, off) of the vertical wind vane 510 is 1 Vd, The upward speed (Vu, off) of the up-and-down wind direction vane 510 becomes 2 Vd, off, and rises twice as fast as the descending speed. Further, the rocking speed (Vr, off) of the left and right wind direction vanes 511 is 1 Vr. It becomes off.
[0033]
Thereafter, an operation time corresponding to the initial indoor set temperature (Tc) of the air conditioner is checked using a power saving timer, and the compressor 512 is turned on while increasing by 1 ° C. from the initial indoor set temperature (Tc). Control.
[0034]
For example, assuming that the air conditioner is controlled at T3 (° C.), after driving the compressor 512 until time 3 (minutes) corresponding to the control temperature T3 (° C.), It is determined whether the room temperature is T5 (° C.), and when it is equal to or lower than T5 (° C.), the control temperature (T4) obtained by raising the initial indoor set temperature (Tc) by 1 ° C. from the set temperature (Tu) The compressor 512 is driven until time 4 (minutes) corresponding to the time is reached. When the compressor 512 is driven, it is determined whether the room temperature is T5 (° C.) using a power saving timer. When it is not T5 (° C.), the compressor 512 is driven for a time corresponding to a temperature (T5) obtained by raising the indoor set temperature by 1 ° C. above the control temperature (T4) as described above.
[0035]
As a result of the determination, when the initial indoor set temperature (Tc) is T5 (° C.), the compressor 512 is stopped, so that the indoor air flow becomes weak and the descending speed (Vd, off) becomes 1 Vd, off, and the rising speed (Vu, off) of the vertical wind direction vane 510 becomes 2 Vd, off, which rises twice as fast as the descending speed. Further, the rocking speed (Vr, off) of the left and right wind direction vanes 511 is 1 Vr. Controlled off.
[0036]
At this time, since the limit of the temperature that can increase the indoor temperature is T5 (° C.) at the maximum, the indoor temperature does not rise above T5 (° C.), and the air conditioner repeats until an end command is input. Automatically. Here, the operation time (time) becomes longer as the room temperature increases.
[0037]
Further, as shown in (3) of FIG. 3, when the set temperature (Tu) is smaller than Tl (° C.), the power saving operation corresponding to the third region is automatically controlled.
[0038]
That is, regardless of the set temperature (Tu), the initial indoor set temperature (Tc) is unconditionally controlled to Tl (° C.), and the compressor 512 is turned off for a time (time 1) corresponding to the control temperature (T1). Drive. During the operation of the compressor 512, the indoor air volume becomes strong depending on the operating conditions of the compressor 512, the descending speed (Vd, off) of the vertical wind direction vane 510 is 1 Vd, off, and the vertical wind direction vane 510 The ascending speed (Vu, off) becomes 0.5 Vd, off, and rises twice slower than the descending speed. Further, the rocking speed (Vr, off) of the left and right wind direction vanes 511 is 3 Vr. The compressor 512 is turned off and is rotated three times faster than the speed when the compressor 512 is stopped.
[0039]
After the compressor 512 is driven in this way, it is determined whether or not the indoor set temperature is T5 (° C.), and when it is equal to or lower than T5 (° C.), the initial indoor set temperature (Tc) is set to the set temperature ( The compressor 512 is driven until time2 (minute) of the time corresponding to the control temperature (T2) increased by 1 ° C. from Tu), and when the drive of the compressor 512 is stopped, a power saving timer is used. It is determined whether the indoor set temperature is T5 (° C.), and when it is not T5 (° C.), the initial indoor set temperature (Tc) is set to 1 ° C. until the initial indoor set temperature (Tc) reaches T5 (° C.). While increasing each time, the compressor 512 is driven for a power saving time corresponding to the increased control temperature.
[0040]
Since the increase control of the indoor temperature is up to the maximum T5 (° C.), when the initial indoor set temperature (Tc) reaches T5 (° C.), the compressor 512 is stopped, and the indoor air flow becomes weak. The descending speed (Vd, off) of the vertical wind vane 510 is 1 Vd, off, and the ascending speed (Vu, off) of the vertical wind vane 510 is 2 Vd, off, which rises twice as fast as the descending speed. . Further, the rocking speed (Vr, off) of the left and right wind direction vanes 511 is 1 Vr. Control off.
[0041]
Since the room temperature does not rise above T5 (° C.), the air conditioner repeats automatic operation until an end command is input.
[0042]
That is, when the indoor temperature rises to a reference value or more, the indoor air volume becomes strong depending on the operating conditions of the compressor 512, and the descending speed (Vd, off) of the vertical wind vane 510 becomes 1 Vd, off. The rising speed (Vu, off) of the vertical wind direction vane 510 becomes 0.5 Vd, off, and rises twice as much as the descending speed. Further, the rocking speed (Vr, off) of the left and right wind direction vanes 511 is 3 Vr. When the compressor 512 is turned off and is swung three times faster than the speed when the compressor 512 is stopped, and the room temperature reaches T5 (° C.) again, the process of stopping the compressor 512 is repeated. To do.
[0043]
Hereinafter, the wind direction control method of the up-down and right-and-left wind direction vanes of the air conditioner according to the present invention will be described with reference to FIGS. 6 (A) to 6 (C) and FIG.
[0044]
6A is an explanatory view showing the up / down and left / right wind direction vane control speeds, FIG. 6B is an explanatory diagram showing the up / down wind direction vane control speeds, and FIG. It is explanatory drawing which showed the eddy current mechanism by control of the said up-and-down wind direction vane of the said air conditioner.
[0045]
That is, when the up-and-down airflow direction vane 510 is downward, the direction of the airflow is the direction of the preceding airflow. However, when the up-and-down airflow direction vane 510 is changed and turned upward, the airflow direction catches up behind. It becomes the direction. At this time, since the catching air current pushes the end of the preceding air current, the preceding air current receives a moment and generates a vortex.
[0046]
Then, the vortex generated in this way shortens the reach distance of the air flow, and the indoor unit fan sucks the air flow through the suction portion on the lower side of the air conditioner, so the direction of the air flow is changed by the vortex flow. As a result, airflow is circulated more favorably around the air conditioner.
[0047]
Accordingly, when the compressor 512 is in operation, the descending speed of the up-and-down wind direction vane 510 is controlled twice as fast as the ascending speed, and the swing speed of the left-and-right wind direction vane 511 is three times as fast as when the compressor 512 is stopped. Further, when the compressor 512 is stopped, the descending speed of the vertical wind direction vane 510 is controlled to be twice slower than the ascending speed, and the swing speed of the left and right wind direction vane 511 is controlled when the compressor 512 is in operation. By controlling the speed three times slower than that, the reach of the airflow can be reduced.
[0048]
The airflow distribution state in the room corresponding to the result of controlling the wind direction in this way will be described with reference to FIGS.
[0049]
That is, when the right and left wind direction vanes 511 quickly swing left and right, the velocity distribution appears larger than usual (FIG. 8A), and PDF as the total value of the time at which an arbitrary point is exposed to the airflow. It can be seen that (Probability Density Function) increases on both sides of the swing range.
[0050]
When this phenomenon is expanded to the indoor space, it can be seen that the airflow distribution is diffused to both sides, and the reach of the airflow is shortened in the central portion of the air conditioner. That is, when the swing speed of the left and right wind direction vanes 511 is increased, the airflow arrival distance is shortened, and a short-distance airflow that generates an airflow only around the air conditioner can be formed.
[0051]
However, at this time, it is necessary to consider the spatial characteristics and the characteristics of the driving stepping motor for the optimum swing speed of the left and right wind direction vanes 511.
[0052]
9 (A) to 9 (C) show the generation of indoor airflow and the eddy current phenomenon when the power saving control method for an air conditioner according to the present invention is applied and when the conventional air conditioner operation method is applied. If there is no fluctuation of the vertical and left and right wind direction vanes, as shown in FIG. 9A, no eddy current other than the normal jet vortex is generated.
[0053]
In addition, when the vertical and horizontal wind direction vanes simply perform the automatic swing as in the conventional case, as shown in FIG. 9B, the vertical and horizontal wind direction vanes are dispersed when the swing direction is changed. Although a flow (Separation Flow) is observed, it is not enlarged due to the strong inertial force.
[0054]
On the other hand, when the power saving control method according to the present invention is applied, as shown in FIG. 9C, the vortex generated when the swing direction of the left and right and up and down wind direction vanes is changed is enlarged and sucked. Since the airflow is sucked into the mouth, the entire airflow is prevented from being diffused.
[0055]
Hereinafter, the effects of such airflow control will be described with reference to FIGS. 10 and 11A and 11B.
[0056]
FIG. 10 is a graph showing experimental results of sensing time of comfort and thermal sensation of the human body when the power saving control method of the air conditioner according to the present invention is applied. FIGS. 11 (A) and 11 (B) are graphs. 5 is a graph showing characteristics of room temperature and power saving time when the power saving control method for an air conditioner according to the present invention is applied.
[0057]
As shown in the figure, when a human enters the room where the air conditioner is in operation and a predetermined time elapses, the human body feels cold and pulls and feels uncomfortable.
[0058]
However, when the room temperature is high, the time required to feel the cold feeling becomes longer, and if the airflow feeling is improved by the short-distance air flow control, the human body's thermal feeling and comfort are favorably affected. At this time, the temperature at which the user feels warmth and comfort varies from person to person.
[0059]
Therefore, in order to find the limit time for the human body to feel comfortable and cool when operating the air conditioner, the cool feeling when the room temperature is T4 (° C) is “hot” according to the international standard technique. There are 7 levels, ranging from “cold” to 7 levels, ranging from “very comfortable” to “very uncomfortable”, and 8 subjects were asked questions every 10 minutes and averaged. Asked.
[0060]
The thermal sensation is determined based on “-1” of the point where “somewhat chilly” is responded, and the comfortable sensation is determined as the time when the comfortable sensation reaches the top. Analysis and comparison were performed to obtain a power saving operation time time4 (min) at the room temperature T4 (° C.), and the power saving time corresponding to the room temperature was represented in the characteristic graph.
[0061]
12 (A) and 12 (B) and FIGS. 13 (A) and 13 (B) show the indoor vertical and horizontal temperatures when the air conditioner is operated by the power saving control method of the present invention and the conventional operation method. The difference is shown by comparing the vertical direction temperature when the air conditioner is installed in one corner of the room and then the power saving control operation according to the present invention is performed rather than the case of the general cooling operation (conventional). The difference and the temperature difference between the left and right increased respectively.
[0062]
That is, in the case of the temperature difference in the left-right direction in the dotted line part (living room part) (FIGS. 12A and 12B), the power saving control operation of the present invention was performed at 4.7 ° C. when operated with the conventional general cooling. In this case, the cooling effect is improved by about 41% at the temperature of 2.8 ° C., and in the case of the temperature difference in the vertical direction in the dotted line portion (living room portion) (FIGS. 13A and 13B) is also 3.1 ° C. The cooling effect was improved by about 52% from 1.5 to 1.5 ° C.
[0063]
The effect of such a power saving operation is also an energy saving effect because the temperature difference between the inside of the dotted line part and the outside of the dotted line part is about 1 ° C. as a result of the limited cooling by the short-distance air flow.
[0064]
Further, as a power saving effect when applying the power saving control method for an air conditioner according to the present invention, as shown in FIG. 14, in the case of conventional general cooling, the place where the air conditioner is installed is set to a set temperature. In order to maintain the power consumption, 5.064 kwh of power is consumed. However, when the power saving operation of the present invention is performed, 3.419 kwh of power is consumed. Therefore, about 32.5% of energy is consumed as compared with the conventional general cooling. There is an effect that can be saved.
[0065]
On the other hand, when heating using the air conditioner, while the compressor 512 is in operation, the upward speed of the up-and-down air vane 510 is driven faster than the downward speed, and the compressor 512 is stopped. Since the upward speed of the vertical wind direction vane 510 is driven slower than the downward speed, there is an effect that power consumption can be reduced as in the case of the cooling.
[0066]
【The invention's effect】
As described above, in the power-saving control method for an air conditioner according to the present invention, the compressor, the vertical wind direction vane, and the left and right wind direction vanes are variably controlled to control the airflow emitted from the air conditioner in a short distance. Thus, the periphery of the air conditioner is limitedly cooled to quickly reach a user-desired set temperature, so that a power saving effect can be achieved.
[0067]
In addition, since the short-distance airflow is a fluctuating airflow, the airflow feeling is improved and the feeling of comfort is improved, and the lateral temperature difference and the vertical temperature difference are improved, so that local discomfort is eliminated, and further, Since the room temperature is automatically controlled in consideration of comfort and thermal sensation, there is an effect that power consumption can be reduced while optimally maintaining the comfort of the occupants.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an air conditioner according to the present invention.
FIG. 2 is a flowchart (No. 1) showing a process of controlling up and down and left and right wind direction vanes in the power saving control method for an air conditioner according to the present invention.
FIG. 3 is a flowchart (part 2) illustrating a process of controlling the vertical and horizontal wind direction vanes in the air conditioner power saving control method according to the present invention.
FIG. 4 is a flowchart (part 3) showing a process of controlling the vertical and horizontal wind direction vanes in the air conditioner power saving control method according to the present invention.
FIG. 5 is a flowchart (No. 4) showing a process of controlling the vertical and horizontal wind direction vanes in the air conditioner power saving control method according to the present invention.
FIGS. 6A to 6C are diagrams showing a method for controlling the vertical and horizontal wind direction vanes of the air conditioner according to the present invention, and FIG. 6A is a table showing the control speed of the vertical and horizontal wind direction vanes. (B) is explanatory drawing which showed the control method of an up-down wind direction vane, (C) is explanatory drawing which showed the left-right wind direction vane control method.
FIG. 7 is a schematic explanatory view showing a vortex mechanism generated when controlling the up-and-down wind direction vanes according to the present invention.
FIGS. 8A and 8B are explanatory diagrams showing the distribution of airflow generated by the left and right wind direction vanes according to the present invention, and FIG. 8A shows the discharge velocity distribution of the airflow generated by the left and right wind direction vanes. Schematic explanatory drawing, (B) is a schematic explanatory drawing showing the indoor airflow distribution generated by the left and right wind direction vanes.
FIGS. 9A to 9C show indoor airflow generation and eddy current phenomenon when the air-conditioner power saving control method according to the present invention is applied and when the conventional operation method is applied. It is a distribution map.
FIG. 10 is a graph showing experimental results of human body comfort and thermal sensation sensing time when the air conditioner power saving control method according to the present invention is applied.
11A and 11B are a graph and a table showing characteristics when the air conditioner according to the present invention is operated, and FIG. 11A is a graph showing a characteristic curve of room temperature and power saving time; (B) is a table showing power saving control time.
FIGS. 12A and 12B are characteristic diagrams showing a comparison of the temperature difference in the left-right direction in the room when the air conditioner is operated by the power saving control method of the present invention and the conventional operation method.
FIGS. 13A and 13B are characteristic diagrams comparing the indoor vertical temperature differences when the air conditioner is operated by the power saving control method of the present invention and the conventional operation method.
FIG. 14 is a graph showing a comparison of power consumption between the case where the power-saving control method for an air conditioner according to the present invention is applied and the conventional method.
FIG. 15 is a configuration diagram showing a general refrigeration cycle.
FIG. 16 is a schematic configuration diagram showing the inside of a conventional air conditioner.
FIG. 17 is an explanatory diagram showing the indoor distribution state of the cooling airflow discharged from a conventional air conditioner.
FIGS. 18A and 18B are views showing swing angles of vertical / left and right vanes of a conventional air conditioner, FIG. 18A is a swing angle of vertical wind direction vanes, and FIG. 18B is a left and right wind direction vane. It is the figure which showed the rocking | fluctuation angle.
[Explanation of symbols]
501 ... Indoor temperature sensor
502 ... Compressor operating state sensing unit
503 ... Temperature control time check section
504 ... Microcomputer
505 ... Indoor fan drive
506: Vertical wind direction vane drive unit
507: Left and right wind direction vane drive section
508 ... Compressor drive unit
509 ... Indoor fan
510 ... up and down wind vane
511 ... right and left wind vanes
512 ... Compressor

Claims (9)

A power saving operation input stage in which the user sets a desired indoor temperature and inputs it to the air conditioner;
A division step of dividing the input room temperature into a plurality of predetermined regions;
A control step of automatically controlling the indoor temperature, the indoor air volume, the up / down wind direction vane and the left / right wind direction vane according to each of the divided areas;
Checking the operating time of the air conditioner corresponding to the controlled room temperature, and automatically increasing the room temperature;
In order ,
In the classification step,
When the temperature set by the user is the same as or higher than T5 (° C.), it is determined as the first area;
Measuring the indoor temperature and determining whether the compressor of the air conditioner is operable based on a difference between the measured temperature and the set temperature desired by the user;
Based on the determination result, controlling the indoor air volume, the descending speed of the vertical wind direction vane, the rising speed of the vertical wind direction vane, and the horizontal swing speed of the left and right wind direction vanes;
Sequential power-saving control method of an air conditioner and performs. In the step of determining whether the operation is possible,
  The room temperature is lower than the set temperature desired by the user 0.5 When the temperature is higher than (° C), the compressor is operated, and the room temperature is lower than the set temperature desired by the user. 0.5 The method of claim 1, wherein the compressor is stopped when the temperature is lower than (° C). The power saving control method for an air conditioner according to claim 2, wherein the operating time of the air conditioner becomes longer as the set temperature is set lower. The room temperature is the highest T5 (C), the rise is limited, and the room temperature is T5 The method of claim 2, further comprising a step of automatically repeating the operation of the air conditioner until an end command is input when the temperature reaches (° C.). A power saving operation input stage in which the user sets a desired indoor temperature and inputs it to the air conditioner;
  A division step of dividing the input room temperature into a plurality of predetermined regions;
  A control step of automatically controlling the indoor temperature, the indoor air volume, the up / down wind direction vane and the left / right wind direction vane according to each of the divided areas;
  Checking the operation time of the air conditioner corresponding to the controlled room temperature, and a rising stage for automatically raising the room temperature;
  In order,
  In the control step,
  When the compressor of the air conditioner is in operation, the indoor air volume is controlled to be a strong wind, and the descending speed of the vertical wind direction vane is higher than the ascending speed. 2 Driven twice as fast and controlled so that the swing speed of the right and left wind direction vanes is the same. On the other hand, when the compressor is stopped, the indoor air volume is controlled to be weak and the descending speed of the up and down wind direction vanes increases. Than speed 2 Driven twice as slow, the swing speed of the right and left wind direction vanes is higher than that during operation Three A power-saving control method for an air conditioner, characterized in that the control is performed so as to swing twice as slowly. A power saving operation input stage in which the user sets a desired indoor temperature and inputs it to the air conditioner;
  A division step of dividing the input room temperature into a plurality of predetermined regions;
  A control step of automatically controlling the indoor temperature, the indoor air volume, the up / down wind direction vane and the left / right wind direction vane according to each of the divided areas;
  Checking the operation time of the air conditioner corresponding to the controlled room temperature, and a rising stage for automatically raising the room temperature;
  In order,
  In the classification step,
  The user's desired set temperature is T5 (C) lower than T1 (C) higher or similar, 2 Judging as an area,
  Measuring the indoor temperature and determining whether the compressor of the air conditioner is operable based on a difference between the measured temperature and the set temperature desired by the user;
  According to the judgment result, the compressor is operated for a driving time corresponding to the initial indoor set temperature, and the indoor air volume, the vertical wind vane descending speed, the vertical wind vane rising speed, and the horizontal wind vane lateral swing speed are controlled. And the stage of
  When the driving time is over, the room temperature is T5 Set the room temperature to (° C). 1 (C) step by step and control,
  A power saving control method for an air conditioner characterized in that A power saving operation input stage in which the user sets a desired indoor temperature and inputs it to the air conditioner;
  A division step of dividing the input room temperature into a plurality of predetermined regions;
  A control step of automatically controlling the indoor temperature, the indoor air volume, the up / down air direction vane and the left / right air direction vane according to each of the divided areas;
  Checking the operating time of the air conditioner corresponding to the controlled room temperature, and automatically increasing the room temperature;
  In order,
  In the classification step,
  The temperature set by the user is T1 (C) higher or similar, Three Judging as an area,
  Measuring the indoor temperature and determining whether the compressor of the air conditioner is operable based on a difference between the measured temperature and the set temperature desired by the user;
  When operating the compressor, the initial indoor set temperature is unconditional. T1 (C), and controlling the indoor air volume, the vertical wind vane descending speed, the vertical wind vane rising speed, and the horizontal wind vane swing speed corresponding to the indoor air volume,
  When the driving time is over, the room temperature is T5 Set the room temperature to (℃) 1 (C) step by step and control,
  A power saving control method for an air conditioner characterized in that The power saving control method for an air conditioner according to claim 7, wherein the compressor has a longer operation time corresponding to the room temperature as the room temperature is controlled lower. A power saving operation input stage in which the user sets a desired indoor temperature and inputs it to the air conditioner;
  A division step of dividing the input room temperature into a plurality of predetermined regions;
  A control step of automatically controlling the indoor temperature, the indoor air volume, the up / down wind direction vane and the left / right wind direction vane according to each of the divided areas;
  Checking the operation time of the air conditioner corresponding to the controlled room temperature, and a rising stage for automatically raising the room temperature;
  In order,
  In the control stage, when the air conditioner performs a heating operation,
  When the compressor is operating, the downward swing speed of the vertical wind vane is driven slower than the upward swing speed, and when the compressor is stopped, the downward swing speed of the vertical wind vane is upwardly swinged. A power-saving control method for an air conditioner, characterized in that it is driven faster than the moving speed.

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