KR19990019617A - Air Conditioning Equipment and Control Method - Google Patents

Abstract

The present invention provides a casing having a suction port and a discharge port for suctioning and discharging indoor air, a refrigerating system having an evaporator for generating cold air in the casing, and suctioning indoor air from the suction port to discharge the air treated at the discharge port. An air conditioner having a blower fan and a control method thereof, comprising: a heater moving to allow adjustment of a flow cross-sectional area through which indoor air passes on a flow path of indoor air by the blower fan, and to adjust the flow cross-sectional area; A driving means for moving the heater, a temperature setting unit for setting a desired temperature, and a control unit for controlling the driving means to adjust the flow cross-sectional area according to the temperature set by the temperature setting unit. As a result, it is possible to generate the discharge air of the optimum temperature that can improve the efficiency of the air conditioner according to the set temperature.

Description

Air Conditioning Equipment and Control Method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and a control method thereof, and more particularly, to an air conditioner and a control method for facilitating the adjustment of a discharge temperature formed by a heater during a heating operation using a heater.

The air-conditioning and combined air conditioning apparatus to which the present invention is applied comprises an indoor unit installed indoors and exchanging indoor air, and an outdoor unit installed in outdoor units and exchanging refrigerant supplied to the indoors. The outdoor unit is provided with a compressor for compressing the refrigerant at high temperature and high pressure, and an outdoor heat exchanger for exchanging refrigerant from the compressor or the room with outdoor air according to the cooling or heating mode.

On the other hand, the indoor unit, as shown in Figure 5, the appearance is formed by the indoor unit casing 52 formed in the inlet port 57 for suctioning the indoor air and the discharge port 56 for discharging heat exchanged air in the lower and upper front surface do. Here, the discharge port 56 is provided with a plurality of louvers 58 installed horizontally along the vertical direction, the louver 58 serves to adjust the wind direction. The front surface of the louver 58 is formed with a discharge plate door 63 of a substantially rectangular plate provided to be movable in the vertical direction. On the other hand, the inlet 57 is provided with a plurality of inlet doors 61 arranged horizontally along the up and down direction so as to be able to rotate up and down about the pivot shafts on both sides.

The indoor air casing 52 is provided with an indoor heat exchanger 54 that generates cold air by evaporating refrigerant from the outside, and a blower fan 55 that sucks and discharges indoor air at an upper portion of the indoor heat exchanger 54. ) Is provided in a separating plate 67 that separates the heat exchange chamber 90 for sucking and exchanging indoor air and the discharge chamber 100 for passing the discharged air. The separator 65 is provided with a heater 65 for generating heat by electricity, and the heater 65 is provided with a warm air temperature sensor 70 for measuring the temperature of the heat generated from the heater 65. It is.

The control unit for controlling the indoor unit of the air conditioner, as shown in Figure 6, receives the signal sensed from the power supply unit 59, the warm air temperature sensor 70 and the mode selection unit 62, the input signal When the cooling mode is selected from the mode selection unit 62, the signal is sent to the compressor driving circuit 75 and the blowing fan driving circuit 76 to control the driving of the compressor 74 and the blowing fan 55. When the heating mode is selected, a signal is sent to the heater driving circuit 85 and the blowing fan driving circuit 76 to control the driving of the heater 65 and the blowing fan 55.

When power is supplied to the air conditioning apparatus and the cooling mode is selected, the indoor air sucked by the blower fan 55 passes through the indoor heat exchanger 54 and is heat-exchanged to be discharged back into the room. 55 is discharged to the room passing through the heater (65) installed in the upper portion.

On the other hand, when the heating mode is selected, the control unit 60 drives the heater 65 and the blowing fan 55, the indoor air introduced by the blowing fan 55 passes through the heater 65 and heat exchanged to The elevated air is discharged to the room to raise the room temperature. The controller 60 turns the heater 65 on and off every predetermined time to heat the room. When the temperature of the heater 65 sensed by the hot air temperature sensor 70 becomes a predetermined temperature or more, the heater 65 is overheated. By judging, the driving of the heater 65 is stopped.

By the way, the heater 65 mounted in the air conditioner will always generate heat at the same temperature according to the capacity and characteristics of the heater 65, since the flow cross-sectional area of the room air passing through the heater 65 is always the same, The discharge temperature of the indoor air passing through the heater 65 is always constant. Accordingly, if the set temperature set by the user is a predetermined low, the set temperature is quickly reached and the room temperature is rapidly changed. If the set temperature is set high, the time required for reaching the set temperature is long. Degrades.

Accordingly, it is necessary to provide a heater 65 having improved reliability by appropriately adjusting the flow cross-sectional area of the indoor air passing through the heater 65 according to the set temperature.

Accordingly, an object of the present invention is to provide an air conditioner equipped with a heater capable of appropriately adjusting the flow cross-sectional area of indoor air passing through a heater according to a set temperature during heating operation, and a control method thereof.

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

2 is an enlarged perspective view of the main part of FIG. 1;

3 is a perspective view of the operation of FIG.

4 is a control block diagram of an air conditioner according to the present invention;

5 is a partial cutaway perspective view of a conventional air conditioner indoor unit,

6 is a control block diagram of a conventional air conditioner.

* Explanation of symbols for main parts of the drawings

2: indoor unit casing 5: blowing fan

6 outlet 7

10 control unit 11: blowing fan duct

13: inlet port 14: outlet port

15: heater 16: temperature setting section

20: hot air temperature sensor 30: support member

31: rack 32: pinion

33: pinion motor

The object of the present invention is to provide an air intake and discharge casing having a casing formed therein, a refrigerating system having an evaporator for generating cold air in the casing, and suctioning indoor air from the suction port to the discharge port. An air conditioner having a blower fan for discharging the treated air, comprising: a heater moving to enable adjustment of a flow cross-sectional area through which indoor air passes on a flow path of indoor air by the blower fan, and to adjust the flow cross-sectional area; And a control means for controlling the driving means to adjust the flow cross-sectional area according to the temperature set by the temperature setting part, and a driving means for moving the heater, a temperature setting part for setting a desired temperature. Is achieved.

Here, when the temperature set from the temperature setting unit is a predetermined high temperature, it is preferable that the control unit controls the driving means so that the flow cross-sectional area of the heater is large. The driving means may include a support member rotatably supporting the other side of the heater rotation shaft and a drive motor driving a pinion engaged with the rack portion, wherein the support member supports the heater. It is preferable that the supporting protrusion to be formed.

On the other hand, the above object, according to another field of the present invention, a suction inlet and discharge port for indoor air and a casing formed with a discharge port, a refrigeration system having an evaporator for generating cold air in the casing, and the indoor air from the suction port A method of controlling an air conditioner having a blower fan for suctioning and discharging the air processed by the discharge port, the method comprising: providing a heater on a flow path of indoor air by the blower fan, setting a desired room temperature; It may be achieved by a control method of an air conditioner, comprising the step of adjusting the flow cross-sectional area of the room air passing through the heater in accordance with the set temperature.

Here, the adjusting of the flow cross-sectional area preferably includes a step of increasing the cross-sectional area as the set temperature is higher.

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

1 and 2, the indoor unit main body is formed of a rectangular cylindrical indoor air casing (2), the front of the indoor air casing (2), the heat exchange with the suction port (7) for sucking the indoor air in the upper and lower parts Discharge openings 6 for discharging the compressed air are formed, respectively. And, one side of the front side is provided with a mode selection unit 12 for setting the operation mode and the wind direction.

In the indoor air casing (2), the indoor heat exchanger (4) for evaporating the refrigerant from the outside to take the latent heat of evaporation to cool the surrounding air, and the upper part of the indoor heat exchanger (4) to suck and discharge the indoor air. A refrigeration system with a blowing fan 5 is formed. Here, the blower fan 5 is formed as a blower fan, and the blower fan 5 is accommodated in the blower fan duct 11 which forms the flow path of the air which flows by the blower fan 5. The blowing fan duct 11 is installed at a lower part of the separator plate 17 that separates the heat exchange chamber 40 for exchanging indoor air and the discharge chamber 50 through which the discharged air moves, and the blowing fan duct 11 An inlet 13 for introducing indoor air is formed at the side of the blower fan 5, and an outlet 14 for discharging air is formed at the upper portion of the blower fan duct 11. It is formed through. On the other hand, the separator 15 is provided with a heater 15 that generates heat by electricity to block the outlet 14 by the heater guide 16 surrounding the heater 15. In addition, a hot air temperature sensor 20 is installed in an area adjacent to the heater 15 to sense the temperature of the air heat exchanged by the heater 15.

Here, the heater 15 has a rotating shaft which is fixed to the heater guide 16 and rotates along one edge toward the front, and the heater 15 is centered at the corner opposite to the corner where the rotating shaft is formed. Driving means for driving to rotate is provided. The drive means is installed in the longitudinal direction with respect to the outlet port 14, the support member 30, the rack portion 31 is formed on the rear facing surface, the pinion 32 meshing with the rack portion 31, and the pinion 32 And a drive motor 33 installed on the rotation shaft of the crankshaft to drive the pinion 32 to move the support member in the vertical direction. On the other hand, the supporting member 30 is formed with a support protrusion 29 toward the heater 15 to support the lower portion of the heater 15. Therefore, when the driving motor 33 is driven, the pinion 32 and the rack portion 31 are engaged to rotate and the support member 30 moves up and down. On the other hand, the 'U' shaped receiving portion 18 is formed in the lower portion of the support member 30 to accommodate the distal end of the support member 30 to support the support member 30 during the vertical movement of the support member 30 To prevent flow.

Then, the heater 15 seated on the support protrusion 29 of the support member 30, as shown in Figures 2 and 3, move in the vertical direction to be spaced apart and approach from the outlet 14. At this time, when the heater 15 approaches the outlet 14 and closes the outlet 14, the indoor air by the blower fan 5 passes through the heater 15, so that the flow cross-sectional area of the indoor air becomes large. When 15 is separated from the outlet, the larger the separation distance, the smaller the flow cross-sectional area through which the indoor air passes through the heater 15.

4 is a control block diagram of an air conditioner according to the present invention. The controller 10 for controlling the air conditioner includes a mode selection unit 12, a temperature setting unit 16 for setting a desired temperature of the user, and a warm air temperature sensor for measuring the temperature of the heat generated from the heater 15. Receive information from (20). The compressor 24 sends a signal to the compressor driving circuit 25, the blowing fan driving circuit 26, the driving motor driving circuit 43, and the heater driving circuit 35 in accordance with the inputted information. ), Driving of the driving motor 33 and the heater 15 is controlled.

Power the air conditioner, select the heating mode, and set the desired room temperature. Then, the controller 10 drives the heater 15 and the blower fan 5, and when the set room temperature is a predetermined high, the controller 10 drives the drive motor 33 so that the heater 15 is adjacent to the outlet 14. Move it. In addition, when the set indoor temperature is a predetermined low, the driving motor 33 is driven to move the heater 15 to be spaced apart from the outlet 14.

Accordingly, when the heater 15 is moved to be adjacent to the outlet 14, the indoor air from the blower fan 5 passes through the entire area of the heater 15, and the discharge temperature of the indoor air is relatively high. When 15) is flowed to be spaced apart from the outlet, the air cross section of the heater 15 positioned on the flow path of the indoor air becomes small, and the discharge temperature of the indoor air is relatively low.

Therefore, by moving the heater 15 to adjust the flow cross-sectional area on the flow path of the indoor air, it is possible to control the temperature of the discharged air passing through the heater 15.

As described above, according to the present invention, it is possible to generate the discharge air of the optimum temperature that can improve the efficiency of the air conditioning equipment according to the set temperature.

Claims (6)

A cooling system including a casing having a suction port and a discharge port for suctioning and discharging indoor air, an evaporator for generating cold air in the casing, and a blower fan for sucking indoor air from the suction port and discharging the air to the discharge port. An air conditioner having: a heater moving to enable adjustment of a flow cross sectional area through which indoor air passes on a flow path of indoor air by the blower fan; drive means for moving the heater to adjust the flow cross sectional area; And a control unit for controlling the driving means to adjust the flow cross-sectional area according to the temperature set by the temperature setting unit. The air conditioner according to claim 1, wherein the control unit controls the driving means so that the flow cross-sectional area of the heater is large when the temperature set by the temperature setting unit is a predetermined high temperature. The air conditioner according to claim 1, wherein the driving means includes a support member rotatably supporting the other side of the heater rotation shaft, and a driving motor for driving a pinion engaged with the rack portion. . The air conditioner according to claim 3, wherein the support member has a support protrusion for supporting the heater. A cooling system including a casing having a suction port and a discharge port for suctioning and discharging indoor air, an evaporator for generating cold air in the casing, and a blower fan for sucking indoor air from the suction port and discharging the air to the discharge port. A method of controlling an air conditioner having a method, comprising: providing a heater on a flow path of indoor air by the blowing fan, setting a desired room temperature, and controlling the indoor air passing through the heater according to the set temperature. The control method of the air conditioning equipment comprising the step of adjusting the flow cross-sectional area. 6. The method of claim 5, wherein the adjusting of the flow cross-sectional area comprises: increasing the cross-sectional area as the set temperature is higher. 7.