KR20050049946A - A indoor unit of split type air conditioner - Google Patents

Abstract

The present invention relates to an indoor unit of a separate type air conditioner equipped with a ventilation unit to easily ventilate the room, and to directly inhale outdoor air and to heat-exchange at the same time to supply the indoor unit.

The present invention provides a chassis fixed to the wall surface, the front panel is mounted to the front of the chassis, the suction panel and the discharge port is formed, and rotatably installed in the interior space of the front panel and the chassis to suck the indoor air through the suction port A blower fan for discharging to the discharge port, a heat exchanger disposed between the blower fan and the suction port to exchange heat with indoor refrigerant sucked through the suction port, and installed on the chassis and the wall and having an outdoor air inlet and an outdoor air outlet. And a ventilation unit which directly sucks outdoor air from the outside and supplies it to the heat exchanger side as the blower fan is driven, and a ventilation unit is installed on the indoor unit and the wall to supply the outdoor air to the room by the ventilation unit. Therefore, indoor ventilation is more easily performed through the indoor unit, and clean outdoor air is There is an advantage that the quality of the indoor air is improved by being supplied directly to the room.

Description

Indoor unit of split type air conditioner

The present invention relates to an indoor unit of a separate type air conditioner, and in particular, the indoor unit is easily equipped with a ventilation unit installed in the indoor unit, and during the ventilation, the outdoor type of a separate type air conditioner which directly supplies and heats the outdoor air and simultaneously exchanges heat. It is about an indoor unit.

In general, an air conditioner is a device for treating intake air and supplying it to a building or a room so as to maintain indoor air in a comfortable condition. The air conditioner is classified into a separate type or a split type and a window type.

The separate type and the integrated type are functionally the same, but the integrated type integrates the function of cooling heat dissipation, and is directly installed by drilling a hole in the wall of the house or by hanging the device on the window. And a compression device to connect the two devices separated from each other by a refrigerant pipe.

1 is a perspective view showing an indoor unit of a separate air conditioner according to the prior art, Figure 2 is a cross-sectional view showing the indoor unit of the separate air conditioner according to the prior art.

As shown in FIG. 1 or 2, the indoor unit of the conventional split type air conditioner has a chassis 4 mounted on and fixed to the wall 2, and is mounted to the front of the chassis 4 and has an inlet 6 and an outlet. The front panel 10 having the 8 formed therein is rotatably installed in the interior spaces of the front panel 10 and the chassis 4, and sucks indoor air through the suction port 6 and discharges it to the discharge port 8. And a heat exchanger (14) disposed between the blower fan (12) and the blower fan (12) and the suction port (6) to heat-exchange the indoor air sucked through the suction port (6) with the refrigerant.

The front panel 10 has suction ports 6 formed on the front and upper surfaces thereof, and discharge ports 8 formed on the lower surfaces thereof, together with the chassis 4, the heat exchanger 14, a blower fan 12, and the like. It is to form a receiving space for receiving.

Here, the suction grille (16) is mounted to the suction port (6), the discharge grille (18) capable of adjusting the wind direction is mounted to the discharge port (8), the air filter 20 on the back of the suction grill (16) ) Is installed to filter the foreign matter of the indoor air sucked through the suction grill (16).

The discharge grill 18 is a louver (18a) for adjusting the up and down wind direction of the air discharged into the room after heat exchange by the heat exchanger (14), and a vane (18b) for adjusting the left and right wind direction of the discharged air It is composed.

In addition, the chassis 4 is provided with a flow path portion 4a for guiding the flow of air on the front surface so that the air blown by the blowing fan 12 flows smoothly.

The blower fan 12 is rotatably installed in the receiving space between the front panel 10 and the chassis 4, and at least one of both ends of the blower fan 12, a blower motor (not shown) Is installed.

The heat exchanger 14 is formed to surround the front and upper sides of the blower fan 12, and disposed between the blower fan 12 and the suction port 6 to cool the indoor air sucked through the suction port 6. Heat exchange with.

The lower end of the heat exchanger 14 as described above is provided with a drain pan 22 to collect the condensed water flowing down from the heat exchanger (14).

However, the indoor unit of the detachable air conditioner according to the prior art is not equipped with a function for ventilation, so the user naturally opens the window or the door to directly ventilate the room, or uses a separate ventilation unit installed on the window or the wall. To ventilate the room.

Therefore, when a user opens a plurality of windows or doors to ventilate the room, not only is it inconvenient, but also the ventilation time becomes long, and in particular, recently, a building that cannot open and close windows is increasing, so that a ventilation unit is separately provided from an air conditioner. There is a problem that must be purchased and installed.

In addition, an air conditioner having a ventilation function has been developed to solve the above problems, but in addition to the blower fan 12, a blower fan for ventilation is additionally installed to increase the number of parts and product cost, and during ventilation. Since there is a structure in which the indoor turbid air is discharged to the outside by the ventilation fan for ventilation, there is a problem that is not effective in improving the quality of the indoor air.

In addition, since the room temperature is out of the optimum value due to ventilation, the indoor environment is deteriorated, causing user dissatisfaction, and there is a problem that an overload occurs or an operation cost is increased due to an increase in the heating and cooling load of the air conditioner.

The present invention was created in order to solve the above problems, an object of the present invention is to install a ventilation unit in the indoor unit of the air conditioner, it is possible to ventilate the room through the indoor unit, in particular the outdoor air is filtered by the ventilation unit And it is to provide an indoor unit of a separate air conditioner that can be supplied directly to the room in a heat exchange state.

The indoor unit of the separate type air conditioner of the present invention for realizing the above problems is provided in a chassis fixed to a wall, a front panel mounted at the front of the chassis, and having an inlet and an outlet formed therein, and an interior space of the front panel and the chassis. A blower fan rotatably installed to suck the indoor air through the suction port and discharge the discharge to the discharge port, and a heat exchanger disposed between the blower fan and the suction port to heat exchange the indoor air sucked through the suction port with a refrigerant; It is installed on the wall and is provided with an outdoor air inlet and an outdoor air outlet, characterized in that it comprises a ventilation unit for directly supplying the outdoor air from the outside to the heat exchanger side as the blowing fan is driven.

In addition, the indoor unit of the separate type air conditioner of the present invention is installed on one side of the chassis, characterized in that it further comprises an opening and closing device for opening and closing the flow passage of the outdoor air introduced into the indoor unit from the ventilation unit.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 3 is a perspective view showing the back of the indoor unit of the separate air conditioner according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing the indoor unit of the separate air conditioner according to an embodiment of the present invention, Figure 5 Ventilation unit of a separate air conditioner according to an embodiment of the present invention is a block diagram showing.

The indoor unit of the separate air conditioner according to the embodiment of the present invention, as shown in Fig. 3 or 4, the chassis 54 is fixed to the wall 52, and is mounted in front of the chassis 54 The front panel 60 having the inlet port 56 and the outlet port 58 of the indoor air is rotatably installed in the interior spaces of the front panel 60 and the chassis 54, and the indoor air is provided through the inlet port 56. Blower fan 62 for sucking and discharging to the discharge port 58 and a heat exchanger disposed between the blower fan 62 and the suction port 56 to heat-exchange the indoor air sucked through the suction port 56 with the refrigerant. And a ventilation unit 66 installed on the chassis 54 and the wall surface 52 and directly sucking outdoor air and supplying it into the indoor unit.

The front panel 60 has a suction port 56 formed at the front and the upper surface thereof, and a discharge port 58 formed at the lower surface thereof. The front panel 60 is coupled to the chassis 54 to form the heat exchanger 64 and a blower fan therein. 62) to form a receiving space for accommodating the back.

Here, the suction grille (68) is mounted to the suction port (56), and the discharge grill (70) capable of adjusting the wind direction is mounted to the discharge port (58), and an air filter (72) is formed on the rear surface of the suction grill (68). ) Is installed to filter the foreign matter of the indoor air sucked through the suction grill (68).

The discharge grill 70 is a louver (70a) for adjusting the up and down wind direction of the air discharged into the room after being heat exchanged by the heat exchanger (64), and a vane (70b) for adjusting the left and right wind direction of the discharged air It is composed.

The chassis 54 is formed with a flow path portion 54a for guiding the flow of air on the front surface so that the air blown by the blower fan 62 flows smoothly, and the through hole 72 is formed together with the wall surface 52. To form.

The through hole 74 is composed of a first through hole 74a formed in the chassis 54 and a second through hole 74b formed in the wall surface 52 so as to communicate with the first through hole 74a. The chassis 54 is mounted on the wall 52 so that the first through hole 74a and the second through hole 74b coincide with each other.

As described above, a plurality of the through holes 74 are provided. A plurality of the first through holes 74a is spaced apart from the chassis 54, and the second through holes 74b are the first through holes 74a. A plurality is formed on the wall surface 52 to correspond to. Therefore, the outdoor air is evenly supplied to the inside of the indoor unit by the ventilation units 66 respectively installed in the plurality of through holes 74.

The blowing fan 62 is rotatably installed in the receiving space between the front panel 60 and the chassis 54, and the blowing fan 62 is provided at at least one of both ends of the blowing fan 62. A driving blower motor (not shown) is installed.

The heat exchanger 64 is formed to surround the front and upper sides of the blower fan 62, and is disposed between the blower fan 62 and the suction port 56 to cool the indoor air sucked through the suction port 56. Heat exchange with.

In addition, the heat exchanger 64 is also disposed between the blower fan 62 and the ventilation unit 66 to heat exchange the outdoor air supplied through the ventilation unit 66, the lower end is provided with a drain fan 76 The condensate flowing in the heat exchanger 64 is collected.

Meanwhile, as shown in FIG. 5, the ventilation unit 66 is inserted into the through hole 74 and has a housing 82 having an outdoor air inlet 78 and an outdoor air outlet 80 at both ends thereof. ) And a ventilation filter 84 mounted inside the housing 82 to filter contaminants of the outdoor air sucked into the housing 82.

In this case, the housing 82 is formed in a pipe shape, one end of which is disposed in the accommodation space of the chassis 54 and the front panel, and the other end of which is disposed outside the wall surface 52. An outdoor air inlet 78 is formed at one end of the housing 82, an outdoor air outlet 80 is formed at the other end, and an outdoor air inlet 78 is formed from the outdoor air inlet 78 to the outdoor air outlet 80. An air flow path () for flowing outdoor air is formed.

In particular, the housing 82 is inserted into the through hole 74 at a predetermined angle A, so that the outdoor air inlet 78 is disposed at a lower position than the outdoor air outlet 80. Rain water and foreign matters are prevented from entering the indoor unit through the outdoor air inlet 78. Therefore, the through hole 74 is formed to be inclined at a predetermined angle A so that the housing 82 is inserted at an angle.

The installation angle (A) of the housing 82 is usually a gradient of about 1/30 to 1/50 is appropriate, the outdoor air outlet portion 80 is the outdoor air blower fan 62 through the heat exchanger (64) Disposed close to the outer periphery of the heat exchanger (64).

In addition, the ventilation filter 84 is mounted on the air flow path of the housing 82 and supplies cleaner air to the room by filtering various contaminants of outdoor air flowing along the air flow path.

That is, the suction of the outdoor air through the ventilation unit 66 is caused by the blowing force of the blowing fan 62, and the outdoor air is automatically supplied to the outdoor air inlet 78 as the blowing fan 62 is driven. ) Is moved along the air passage and discharged into the indoor unit through the outdoor air outlet 80. As the outdoor air discharged as described above flows through the heat exchanger 64 to the blower fan 62, heat exchange is performed.

Looking at the operation of the indoor unit of the separate air conditioner according to the prior art configured as described above are as follows.

First, during the cooling and heating of the room, a compressor mounted in the outdoor unit is driven to circulate a refrigerant between the indoor unit and the outdoor unit, and the refrigerant heats or cools the surrounding air while passing through the heat exchanger 64 of the indoor unit.

When the blower fan 62 of the indoor unit is driven by the blower motor while the refrigerant is circulated and the air cooling / heating is performed as described above, the indoor air is inside the indoor unit through the suction port 56 equipped with the suction grill 68. Sucked into the indoor air is blown through the heat exchanger (64) by the blower fan (62), and then discharged into the room through the discharge port (58), which makes the indoor environment comfortable. do.

At this time, the indoor air sucked into the suction port 56 is purified while passing through the air filter 72 disposed on the rear surface of the suction grill 68, and the outdoor air discharged to the discharge port 58 is discharged to the discharge port 58. Wind direction is appropriately changed by the discharge grill 70 provided in the).

On the other hand, when the indoor air is cooled or heated for a long time by the indoor unit, the indoor air becomes contaminated and turbid, so that the ventilation of the room is necessary so as not to adversely affect the health of the indoor residents.

During ventilation, the outdoor air is introduced into the indoor unit through the ventilation unit 66. As the blowing fan 62 is driven, the outdoor air is sucked through the outdoor air inlet 78 by the blowing force of the blowing fan 62. After being flowed along the air passage of the housing 82, the air is discharged to the heat exchanger 64 through the outdoor air outlet 80.

At this time, the air introduced through the outdoor air inlet portion 78 is purified by the ventilation filter 84 installed on the air flow path of the housing 82, and the outdoor air discharged to the outdoor air outlet portion 80. Is heat exchanged while passing through the heat exchanger (64).

The outdoor air heat-exchanged as described above is discharged to the room through the discharge grill 70 together with the indoor air, thereby preventing the increase in the room temperature due to the ventilation action.

6 is a cross-sectional view showing the indoor unit of the separate air conditioner according to another embodiment of the present invention, Figure 7 is a block diagram showing a ventilation unit of the separate air conditioner according to another embodiment of the present invention, Figure 8 Is a block diagram showing the opening and closing device of the separate air conditioner according to another embodiment of the present invention.

Here, the same reference numerals as the above-mentioned drawings indicate the same members.

As shown in FIG. 6, the indoor unit of the separate air conditioner according to another embodiment of the present invention is installed at one side of the chassis 54 to open and close a flow passage of outdoor air introduced into the indoor unit from the ventilation unit 86. It is configured to further include an opening and closing device 88, the other configuration is the same as the above embodiment.

As shown in FIG. 7, the ventilation unit 86 includes a housing 92 having one end inserted into and fixed to the second through hole 74b and having an outdoor air inlet 88 and an outdoor air outlet 90 at both ends. And a ventilation filter 94 mounted on one side of the housing 92 to filter contaminants of outdoor air sucked into the outdoor air inlet 88.

Therefore, the housing 82 is fixed to the wall surface 52 in a state where one end is located inside the through hole 74, and an outdoor air outlet 90 is formed at one end, and an outdoor air inlet at the other end. A portion 88 is formed.

As illustrated in FIG. 8, the opening and closing device 96 is provided with a solenoid valve 98 installed on the front surface of the chassis 54, and is rotatably installed in the chassis 54 in a left and right direction. It is composed of an opening and closing plate 100 for opening and closing the first through hole 74a at the same time, and a connecting member 102 for connecting the opening and closing plate 100 and the solenoid valve 98.

The opening and closing plate 100 is provided with a plurality of opening and closing the plurality of first through holes (74a) formed in the chassis 54 at the same time, the plurality of opening and closing plates 100 are connected to each other by a connecting member (102) Connected.

As the plurality of opening and closing plates 100 are operated by the solenoid valve 98, the plurality of opening and closing plates 100 simultaneously open and close the plurality of first through holes 74a.

That is, when the ventilation function is operated, the first through hole 74a is opened by the solenoid valve 98 so that outdoor air flows into the indoor unit through the ventilation unit 66, while the ventilation function is stopped. In this case, the first through hole 74a is blocked by the solenoid valve 98 to prevent the outdoor air from entering the room.

Since the indoor unit of the separate type air conditioner of the present invention configured as described above is provided with a ventilation unit on the indoor unit and the wall surface, and the outdoor air is supplied to the room by the ventilation unit, indoor ventilation is more easily performed through the indoor unit, and clean outdoor air. Is directly supplied to the room has the advantage that the quality of the indoor air is improved.

In addition, compared to conventional installation of a separate ventilation unit on the wall or window, the purchase cost is reduced, and installed with the indoor unit has the advantage that the installation work is easy and the space constraints are also reduced.

In addition, outdoor air is supplied to the indoor unit in a clean state by removing various contaminants by the ventilation filter of the ventilation unit, and outdoor air supplied to the indoor unit is discharged into the room after being heat exchanged by a heat exchanger to change the indoor temperature. There is an advantage that the indoor environment is maintained in a comfortable state even when ventilation is prevented in advance.

In addition, since outdoor air is heat-exchanged to an appropriate temperature and discharged to the room as described above, operation performance is improved and power consumption is reduced compared to the method of supplying the outdoor air as it is without heat-exchange. There is an advantage.

In addition, since the opening and closing device is additionally installed in the chassis of the indoor unit to control the flow of outdoor air by the ventilation unit, when the ventilation function is not used, the flow passage of the outdoor air is closed by the opening and closing device so that the outdoor There is an effect to prevent the load rise due to air inflow.

1 is a perspective view showing an indoor unit of a separate air conditioner according to the prior art,

2 is a cross-sectional view showing an indoor unit of a separate air conditioner according to the prior art;

Figure 3 is a perspective view showing the back of the indoor unit of the separate air conditioner according to an embodiment of the present invention,

4 is a cross-sectional view showing an indoor unit of a separate air conditioner according to an embodiment of the present invention;

5 is a configuration diagram showing a ventilation unit of a separate air conditioner according to an embodiment of the present invention;

6 is a cross-sectional view showing an indoor unit of a separate air conditioner according to another embodiment of the present invention;

7 is a configuration diagram showing a ventilation unit of a separate air conditioner according to another embodiment of the present invention;

8 is a block diagram showing the opening and closing device of the separate air conditioner according to another embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

52: wall 54: chassis

60: front panel 62: blowing fan

64 heat exchanger 66,86 ventilation unit

74: through hole 82,92: housing

84,94: Ventilation filter 96: Switchgear

98: solenoid valve 100: opening and closing plate

102: connecting member

Claims (12)

A chassis fixed to the wall; A front panel mounted to the front of the chassis and having a suction port and a discharge port; A blowing fan rotatably installed in the interior space of the front panel and the chassis and sucking the indoor air through the suction port and discharging it to the discharge port; A heat exchanger disposed between the blower fan and the suction port to heat exchange the indoor air sucked through the suction port with a refrigerant; It is installed on the chassis and the wall, the outdoor air inlet and the outdoor air outlet is provided, and the blower fan is driven, characterized in that it comprises a ventilation unit for sucking the outdoor air directly from the outside to supply to the heat exchanger side Indoor unit of air conditioner. The method of claim 1, The indoor unit of the separate air conditioner is installed on one side of the chassis further comprises an opening and closing device for opening and closing the flow passage of the outdoor air flowing into the indoor unit from the ventilation unit. The method of claim 1, The chassis and the wall surface is formed with a through hole for inserting the ventilation unit is installed, the through hole is characterized in that the first through hole formed in the chassis, and the second through hole formed in the wall so as to communicate with the first through hole Indoor unit of a separate air conditioner. The method of claim 3, wherein Indoor unit of a separate air conditioner, characterized in that the heat exchanger is installed between the through-hole and the blowing fan. The method of claim 4, wherein Indoor unit of a separate air conditioner, characterized in that the plurality of through-holes are formed. The method according to claim 1 or 5, The ventilation unit is inserted into the first through hole and the second through hole, and has a housing having an outdoor air inlet and an outdoor air outlet at both ends thereof, and a pollutant of outdoor air mounted to the housing and sucked into the outdoor air inlet. Indoor unit of a separate air conditioner, characterized in that consisting of a ventilation filter for filtering. The method of claim 6, The housing is formed in a pipe shape and has an outdoor air outlet at one end disposed in the inner space of the chassis and the front panel, and an outdoor air inlet at the other end arranged outside the wall. Indoor unit of the flag. The method according to claim 1 or 5, The ventilation unit includes a housing having one end fixed to a second through hole and having an outdoor air inlet and an outdoor air outlet at both ends thereof, and a contaminant of outdoor air mounted on one side of the housing and sucked into the outdoor air inlet. Indoor unit of a separate type air conditioner, characterized in that consisting of a ventilation filter for filtering. The method of claim 8, The housing is formed in a pipe shape, the outdoor air outlet is provided at one end inserted into the second through-hole, the outdoor air inlet unit is provided at the other end disposed on the outside of the wall surface. The method according to claim 2 or 9, The opening and closing device is a solenoid valve, the opening and closing plate which is rotatably installed in the left and right direction in the chassis and is operated by the solenoid valve to open and close the first through hole, and the connecting member for connecting the opening and closing plate and the solenoid valve Indoor unit of a separate air conditioner, characterized in that configured. The method of claim 10, The opening and closing plate is provided with a plurality of corresponding to the first through-hole, the plurality of opening and closing plate indoor unit of the separate air conditioner, characterized in that connected to each other by a connecting member. The method according to claim 7 or 9, The housing is an indoor unit of a separate air conditioner, characterized in that inserted into the through-hole inclined so that the outdoor air inlet portion is positioned in a lower position than the outdoor air outlet.