KR100294342B1 - Split type air conditioner and control method thereof - Google Patents

Abstract

PURPOSE: A split type air conditioner and control method thereof are provided to variously select discharge angle of air and efficiently reduce scattering of air processing area. CONSTITUTION: An indoor unit of an air conditioner includes a casing; multiple blast fans(15,17); multiple driving motors(35,37); multiple temperature sensors(21,23); and a controller. The casing has an air inlet and multiple air outlets(31,33) formed thereon. The blast fans are installed on the air outlets, respectively. The driving motors rotate the blast fans correspondingly with the blast fans. The temperature sensors detect room temperature. The controller controls at least one of the driving motors based on difference between temperatures detected by the temperature sensors.

Description

Separate air conditioner and control method

The present invention relates to a separate type air conditioner having an outdoor unit installed outdoors, an indoor unit provided with the refrigerant compressed from the outdoor unit to provide heat exchanged into the room, and a control method thereof. The present invention relates to a separate air conditioner and a control method which can be reduced.

An air conditioner is a device that adjusts the temperature, humidity, airflow, and cleanliness of air sent to the room to create a comfortable indoor environment. The air conditioner is classified into an integrated type and a separate type according to the configuration of the unit.

An integrated air conditioner allows the components of the refrigeration cycle to be housed in a single case, absorbing latent heat from the compressed and condensed refrigerant as it passes through the capillary and allowing it to evaporate through the evaporator as it passes through the compressor and condenser. It is an air conditioner to perform the cooling operation.

The split type air conditioner usually divides the components that make up the refrigeration cycle into two parts, and the blower, the evaporator, and the air filter are indoors. It is an air conditioner installed so that cooling can be performed.

FIG. 6 is a perspective view of a conventional detachable air conditioner indoor unit, and FIG. 7 is a side cross-sectional view of the indoor unit of FIG. 6. As shown in these figures, the indoor unit of the separate type air conditioner has a rectangular parallelepiped casing 101 and a casing having a front air intake 103 and an upper air intake 105 formed in the front and top regions, respectively. The heat exchanger 102 disposed adjacent to the internal air intake area of the 101 and allowing heat introduced through the air intakes 103 and 105 to pass through and heat exchanged air installed at the rear of the heat exchanger 102 to the room. It has a blowing fan 104 which blows.

The lower region of the heat exchanger 102 is installed to stand side by side in the front air intake 103, the upper region is formed to be inclined upward toward the upper air intake 105. An air filtration device 107 is interposed between the heat exchanger 102 and the upper air suction port 105 so as to filter dust in the air introduced through the upper air suction port 105.

On the other hand, the air discharge port 111 opened along the longitudinal direction of the casing 101 is formed in the lower front region of the casing 101, and the edge of the air discharge port 111 is disposed along the longitudinal direction of the casing 101. The vertical adjustment member 113 is installed to be able to rotate up and down about the rotating shaft. In addition, a plurality of left and right adjustment members 115 are installed at the edge of the air discharge port 111 so as to be able to rotate left and right with respect to the casing 101 about a rotational shaft disposed horizontally in the longitudinal direction of the air discharge port 111. .

By such a configuration, when the blower fan 104 is driven, air is introduced into the casing 101 through the front air suction port 103 and the upper air suction port 105. The air introduced into the casing 101 is heat-exchanged while passing through the heat exchanger 102 to be provided indoors through the air discharge port 111 formed in the lower front region of the casing 101. At this time, the left and right adjusting member 115 and the upper and lower adjusting member 113 provided in the air discharge port area is rotated around the rotating shaft, respectively, to adjust the wind direction of the air.

By the way, in the indoor unit of such a conventional type air conditioner, the air discharge port is formed in the lower front area of the casing in parallel with the rotary shaft of the blower fan, so that the treated air is discharged only to a certain area so that from the flow path of the air The spaced apart area has a problem that heat exchange and / or air treatment are not effective. Therefore, although the wind direction control means is provided in the air discharge port area in consideration of such a problem, there is a problem that is insufficient to effectively solve the problem of heat exchange and air treatment area due to the structure of the air discharge port.

Accordingly, an object of the present invention is to provide a separate type air conditioner and a control method thereof, which can select various discharge angles of treated air and can effectively reduce the dispersion of the air treatment area.

1 is a perspective view of an indoor unit of a separate air conditioner according to the present invention;

2 is a front cross-sectional view of FIG.

3 is a cross-sectional view taken along line III-III of FIG. 2;

4 is a control block diagram of the separate air conditioner of FIG. 1;

5 is a flowchart illustrating a control method of a separate air conditioner according to the present invention;

6 is a perspective view of a conventional detachable air conditioner indoor unit,

7 is a side cross-sectional view of the indoor unit of FIG. 6.

Explanation of symbols on the main parts of the drawings

1: indoor unit 3: casing

9: heat exchanger 15,17: blowing fan

21,23: Temperature sensor 31,33: Air outlet

35,37: Fan drive motor 39,41: Up and down control member

43,45: left and right adjusting member

The object of the present invention is a separate air conditioner having an outdoor unit installed outdoors and an indoor unit provided with heat exchanged into a room by receiving a refrigerant compressed from the outdoor unit, wherein the indoor unit includes an air intake port and air. A casing in which discharge ports are formed; A plurality of blower fans rotatably installed in the plurality of air outlet ports respectively partitioned; A plurality of temperature sensors disposed corresponding to the respective blowing fans to sense room temperature; And a control unit for controlling the rotational speed of at least one of the plurality of blowing fans based on the difference in the sensed temperature values of the respective temperature sensing sensors.

Here, the air discharge port is preferably disposed symmetrically with respect to the vertical center axis line with a predetermined inclination angle with respect to the horizontal plane and the adjacent areas are projected downward.

In addition, it is preferable that a singer air inlet is formed over the front surface of the casing, and the temperature sensor is installed at both front air inlet areas of the casing.

It is preferable to include a plurality of left and right adjusting members installed in the air discharge area so as to be rotatable along the left and right directions of the casing so as to correspond to the blowing fans to guide the flow of the discharged air.

The controller may be configured to rotate the blower fan disposed at a corresponding area of the temperature sensor having a relatively high temperature value at a higher speed than the normal operating speed when the difference in the room temperature value detected by the temperature sensor is greater than or equal to a predetermined value. It is preferable to control and control the left and right adjusting members corresponding to the blowing fan to be driven at a high speed toward the temperature sensor.

The control unit, when the difference between the indoor temperature value is a predetermined value or more, controls the blowing fan disposed in the corresponding region of the temperature monitoring line having a relatively low indoor temperature value to operate at a lower speed than the normal operating speed, the low speed control It is preferable to control the left and right adjusting members corresponding to the blower fan toward the front of the air discharge port.

The control unit, when the difference between the room temperature value detected by the room temperature sensor is less than a predetermined value, controls each of the blower fan to run at a lower speed than the normal operating speed, and each of the left and right adjusting members toward the front of the air discharge port It is desirable to control so as to.

The outdoor unit includes a compressor for compressing a refrigerant, a condenser for condensing the refrigerant compressed by the compressor, and an outdoor cooling fan for promoting a cooling action of the condenser, wherein the control unit is detected by the indoor temperature sensor. When the indoor temperature value is lower than the set temperature, it is preferable to control the driving of the outdoor cooling fan and the compressor to be stopped.

On the other hand, according to another field of the present invention, the object is a control method of a separate air conditioner having a casing with an air discharge port, and a blowing fan arranged to be rotatable in the plurality of partitioned air discharge area, respectively, Detecting an indoor temperature value for each corresponding region of each blowing fan; It is also achieved by a control method of a separate air conditioner comprising the step of controlling the rotational speed of each blowing fan based on the sensed room temperature value.

The method may further include comparing the temperature values between the plurality of indoor temperature values and the set temperature detected between the indoor temperature sensing step and the control step; In the controlling step, when the detected indoor temperature value is greater than or equal to the set temperature value and the difference between the detected indoor temperature values is greater than or equal to a predetermined value, the blowing fan disposed in an area having a relatively high temperature value is larger than the normal operating speed. It is preferable to include the step of controlling to operate at a high speed, and to control the left and right adjusting members disposed corresponding to the high-speed controlled blowing fan to the sensor side that senses the high room temperature value.

The controlling may include controlling the blower fan in the region having the relatively low room temperature value to be operated at a lower speed than a normal operating speed, and adjusting the left and right regulating members disposed corresponding to the low speed controlled blower fan to the air. It is preferable to further include the step of controlling to face the front of the discharge port.

The controlling step may include the step of controlling each blowing fan to operate at a lower speed than a normal operating speed when the detected indoor temperature value is greater than or equal to the set temperature and the difference between the detected indoor temperature values is less than a predetermined value. It is preferable to further include controlling each of the left and right adjusting members to face the front of the air discharge port.

And a condenser for condensing the refrigerant provided from the compressor and an outdoor cooling fan for promoting a heat dissipation action of the condenser, wherein the detected step is performed. When the temperature is lower than the set temperature, the outdoor cooling fan and the compressor is preferably further controlled to stop the driving.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

1 is a perspective view of an indoor unit of a separate air conditioner according to the present invention, FIG. 2 is a front sectional view of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG. 2. As shown in these figures, the separate type air conditioner according to the present invention is provided with an indoor unit (1) installed in the room to heat exchange and air treatment the indoor space, and to provide the indoor unit (1) with a compressed refrigerant disposed outdoors. It has an outdoor unit 51.

The indoor unit 1 includes a casing 3 having a front air suction opening 5 and an upper air suction opening 7 formed at the front and an upper end thereof, respectively, and being accommodated in the casing 3 through the air suction openings 5 and 7. A heat exchanger 9 for allowing heat introduced into the casing 3 to exchange heat, and a pair of first blowing fans 15 disposed at the rear of the heat exchanger 9 to blow heat exchanged air into the room; The second blowing fan 17 is provided.

The heat exchanger 9 has a pair of first heat exchangers 11 and a second heat exchanger 13 arranged side by side at the front air inlet 5. The upper region of each heat exchanger (11, 13) is formed to be inclined upward toward the upper air intake region, and the area between the upper air intake (7) and the heat exchanger (11,13) to filter dust in the air An air filtration device 19 is provided. The first heat exchange part 11 and the second heat exchange part 13 have a pair of first temperature sensor 21 and a second temperature sensor so as to detect the indoor temperature sucked through the front air inlet 5. 23 are provided respectively.

A collecting tray 25 supporting lower ends of the heat exchange parts 11 and 13 and discharging condensed water from the heat exchange parts 11 and 13 to be discharged to the outside under the heat exchange parts 11 and 13. Is arranged.

On the other hand, the lower end of the casing (3) is formed with a pair of inclined portion 29 forming a substantially "V" shape so that the center region is projected downward, and in the front region of each inclined portion 29 with respect to the vertical center axis line A pair of the first air discharge port 31 and the second air discharge port 33 are formed through the plate surface so as to be symmetrical with each other. The first blowing fan 15 and the second blowing fan 17 are provided in the rear region of each of the air discharge ports 31 and 33, respectively, in parallel with the air discharge ports 31 and 33. One side of each blower fan (15, 17) is coupled to the fan drive motor (35,37) for driving the respective blower fan (15,17) to rotate.

At one side edge of each air outlet port 31, 33, the air outlet port 31, 33 is rotated to open and close around a rotation shaft formed along the longitudinal direction of the air outlet port 31, 33, and the air is rotated up and down. The first up and down control member 39 and the second up and down control member 41 for guiding the flow are respectively provided. In addition, at the edge of each air outlet 31 and 33, a series of first left and right regulating members that rotate left and right about a rotation axis arranged horizontally in the longitudinal direction of each air outlet 31 and 33 and guide the flow of air. 43 and the second left and right adjustment member 45 are provided.

4 is a control block diagram of the separate air conditioner of FIG. 1, and FIG. 5 is a flowchart illustrating a control method of the separate air conditioner according to the present invention. As shown in these figures, the control unit 47 including a microcomputer with a built-in control program includes a pair of first and second temperature sensors 21 and 23 so as to detect a predetermined room temperature; First and second blower fans 15 and 17 disposed in each air outlet region, first and second upper and lower control members 39 and 41 for adjusting the direction of air discharged and disposed in each air outlet region; And first and second left and right adjusting members 43 and 45 are respectively attached. In addition, the control unit 47 is provided with a refrigerant compressor 53, which is accommodated in the outdoor unit 51, and an outdoor cooling fan 55 provided to promote the cooling action of the condenser (not shown).

By such a configuration, when the respective blower fans 15 and 17 are driven by the fan driving motors 35 and 37, the air flows through the front air intake port 5 and the upper air intake port 7 in the casing 3. Inflow. At this time, when the first and second indoor temperatures Ta and Tb are detected by the respective sensing sensors 21 and 23 (S1), the controller 47 compares the detected two indoor temperature values Ta and Tb. (S3). The first temperature value Ta detected by the first temperature monitoring sensor 21 among the two detected room temperature values Ta and Tb is the second temperature value Tb detected by the 21st temperature monitoring sensor 23. When the predetermined value Tx is exceeded, the control unit 47 rotates the first left / right adjusting member 43 installed at the first air outlet 31 to the left (S5), and the second left / right adjusting member 945). To face the front (S7). Then, the first blower fan 150 is operated at the highest speed level among the repair speed levels so that the first temperature monitoring sensor 21 can be rapidly heat exchanged (S9), and the second blower fan 17 is normally operated. It is to be operated at a lower speed than the speed level (S11).

Again, after detecting the first and second indoor temperatures Ta and Tb (S13), the two detected indoor temperature values Ta and Tb are the same by comparing the two detected indoor temperature values Ta and Tb. (S15), the controller 47 controls the first left and right adjusting member 43 to face the front (S17), and controls the first blowing fan 15 at a low speed (S19). Next, by detecting the indoor temperature (S21), if the detected two indoor temperature values (Ta, Tb) is less than or equal to the set temperature value (Ts) (S23), the control unit 47 is the compressor 53 and the outdoor cooling fan (55). ) Is stopped (S25).

Meanwhile, the second temperature value Tb detected by the second temperature sensor 23 among the two detected room temperature values Ta and Tb may exceed a predetermined value Tx than the first temperature value Ta. When (S27), the control unit 47 rotates the first left and right adjustment member 43 installed in the first air discharge port 31 to the front (S29), and rotates the second left and right adjustment member 45 to the right ( S31). Then, the first blower fan 15 is operated at a lower speed than the normal speed level (S33), and the second blower fan 17 has a plurality of speeds so as to rapidly heat-exchange the second temperature sensor 23. The driving is performed at the highest speed level among the levels (S35).

Again, the first and second room temperature values Ta and Tb are sensed (S37). When the detected two indoor temperature values Ta and Tb are the same by comparing the two detected indoor temperature values Ta and Tb (S39), the controller 47 faces the second left and right adjusting members 45 to face the front side. In operation S41, the second blowing fan 17 is controlled at a low speed in operation S43.

When the detected difference between the two indoor temperature values Ta and Tb is equal to or less than a predetermined value Tx (S27), the first and second left and right adjusting members 43 and 45 are rotated to the front (S45). And operating the second blowing fans 15 and 17 at a lower speed than the normal speed level (S47).

As described above, according to the present invention, there is provided a separate type air conditioner and a control method thereof capable of adjusting the direction and speed of the air discharged in response to the distribution of temperature.

Claims (13)

In the separate type air conditioner having an outdoor unit installed outdoors and an indoor unit for receiving the heat compressed into the room by receiving the compressed refrigerant from the outdoor unit, the seal The bet includes: a casing in which an air inlet and a plurality of air outlets are divided; A plurality of blower fans respectively provided in the plurality of air outlet regions; A plurality of driving motors corresponding to the plurality of blowing fans to rotate the blowing fans; A plurality of temperature sensing sensors disposed in correspondence with each blowing fan to sense room temperature; And a control unit for controlling at least one of the plurality of driving motors based on a difference in sensing temperature values of the respective temperature sensing sensors. The split type air conditioner according to claim 1, wherein the air discharge ports are symmetrically disposed with respect to the vertical center axis line with a predetermined angle of inclination with respect to a horizontal plane, and adjacent areas thereof protrude downward. The air conditioner of claim 1, wherein the air inlet is formed over the front surface of the casing, and each of the temperature sensors is installed at both front air inlet areas of the casing. According to claim 3, A plurality of left and right adjusting members for guiding the flow of the discharged air is installed in the air discharge port area rotatably along the left and right directions of the casing corresponding to each blowing fan. Separate air conditioner. According to claim 4, wherein the control unit, if the difference in the room temperature value detected by the temperature sensor is more than a predetermined value, the normal operation of the blower fan disposed in the corresponding area of the temperature sensor having a relatively high temperature value And a left and right adjusting member corresponding to the blowing fan being driven at a high speed toward the temperature sensing sensor side. The air conditioner of claim 4, wherein the control unit is configured to operate the blower fan disposed at a corresponding region of the temperature sensor having a relatively low indoor temperature value at a lower speed than a normal operating speed when the difference between the indoor temperature values is a predetermined value or more. And a left and right regulating member corresponding to the low speed controlled blowing fan to face the front side of the air outlet. The method of claim 4, wherein the control unit, when the room temperature value detected by the room temperature sensor is less than a predetermined value, and controls each of the blowing fan to operate at a lower speed than the normal operating speed, and each of the left and right adjusting members Separation type air conditioner characterized in that the control to face the front of the air discharge port. The outdoor unit according to any one of claims 5 to 7, wherein the outdoor unit includes a compressor for compressing the refrigerant, a condenser for condensing the refrigerant compressed by the compressor, and an outdoor cooling fan for promoting a cooling action of the condenser. And the control unit controls to stop driving of the outdoor cooling fan and the compressor when the indoor temperature value detected by the indoor temperature sensor is equal to or lower than a set temperature. A control method of a separate air conditioner having a casing in which a plurality of air outlets are formed, a plurality of blower fans respectively disposed in the plurality of air outlet ports, and a plurality of drive motors corresponding to the respective blower fans. Detecting an indoor temperature value at a corresponding position of each blowing fan; Calculating a difference between the sensed indoor temperature values; And controlling at least one of the plurality of drive motors based on the difference between the room temperature values. 10. The method of claim 9, further comprising: comparing temperature values between the plurality of indoor temperature values and the set temperature detected between the indoor temperature sensing step and the control step; In the controlling step, when each detected indoor temperature value is equal to or greater than the set temperature value and the difference between the detected indoor temperature values is equal to or greater than a predetermined value, the blower fan disposed in an area having a relatively high temperature value is operated at a normal operation speed. And controlling to operate at a higher speed, and controlling the left and right regulating members disposed corresponding to the high speed controlled blowing fan to the sensor side that senses the high indoor temperature value. Control method. The method of claim 10, wherein the controlling step comprises the steps of: controlling the blowing fan in the region having the relatively low room temperature value to be operated at a lower speed than a normal operating speed; And controlling the member to face the front of the air discharge port. The method according to any one of claims 9 to 11, wherein in the controlling step, when the detected indoor temperature value is greater than or equal to the set temperature and the difference between the detected indoor temperature values is less than a predetermined value, each of the blower fans is normalized. And controlling each of the left and right adjusting members to face the front surface of the air discharge port. The method of claim 12, further comprising a compressor disposed outdoors to compress the refrigerant, a condenser to condense the refrigerant provided from the compressor, and an outdoor cooling fan to promote heat dissipation of the condenser. And controlling the driving of the outdoor cooling fan and the compressor to be stopped when the sensed indoor temperature value is lower than or equal to a set temperature.