KR100729010B1 - Indoor unit of air conditioner - Google Patents

Abstract

Heat exchanger 10 having the front side heat exchanger portion 10A facing the inlet 4 and the rear side heat exchanger portion 10B facing the upper inlet 6 all in the indoor unit body 1 in an inverted V shape from the side view. And an indoor blower (13), fitted with an air filter (11) between the heat exchanger and the upper and upper intake ports, arranged at one side end of the heat exchanger and inside the reverse V-shape to open into the indoor unit body. And a ventilation unit 15 composed of the first and second suction guides Sa and Sb, a blowout outlet 32 to be opened outdoors, and a blowing mechanism 30.

Description

Indoor unit of air conditioner {INDOOR MACHINE FOR AIR CONDITIONER}

The present invention relates to an air conditioner composed of an indoor unit and an outdoor unit, and more particularly, to an indoor unit of an air conditioner with an indoor ventilation function.

Air conditioners composed of indoor units and outdoor units have been widely used. In the indoor unit, a suction port and a blowout port are provided in the main body, and a heat exchanger and a blower are accommodated in the main body. The front surface of the heat exchanger is equipped with an air filter and is configured to capture dust before being led to the heat exchanger.

By the way, not only the air conditioning of the room is always performed for a user, but also, depending on the situation, there is a case where the ventilation of the room can be effectively or quickly performed without opening the window.

For example, if several people smoke in the living room all at once, there may be an unpleasant feeling, such as a state full of smoke or an unpleasant odor, while opening a window may cause external noise or dust to enter. .

Normally, the ventilation fan is provided in the kitchen or the like, but rarely provides a ventilation fan dedicated to the living room. Therefore, in the above case, the window must be opened slightly, or the window must be opened without opening the window, and either way, the comfort is impaired.

Therefore, the indoor unit main body was extended to the side and the product provided with the ventilation fan in the position adjacent to a heat exchanger came to be provided. Ventilation openings are opened at the opposite sides of the ventilation fan and the mounting wall at the front and rear of the main body of the indoor unit, and indoor air is discharged to the outside by the operation of the ventilation fan.

In such an indoor unit, the ventilation function can be obtained once, but the ventilation fan is accommodated in the indoor unit main body in the state of being installed next to the heat exchanger, so that the outer size of the indoor unit main body becomes large and the mounting space is expanded.

In addition, when the ventilation fan is driven, the operation noise leaks into the room from the ventilation port on the front of the main body and hinders the quiet operation. In addition, external noise may enter the indoor unit main body through a vent on the wall, leak into the indoor unit, and may interfere with quiet operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide an indoor unit of an air conditioner that not only has an original air conditioner function but also adds a ventilation function to improve comfort, and thereby suppresses an enlargement of the main body size and an increase in noise. To do so.

The indoor unit of the air conditioner according to the present invention includes an inlet V and an inlet V having an all inlet and an inlet inlet, and a front side heat exchanger portion opposing the inlet port and a rear heat exchanger portion opposing the upper inlet port. A heat exchanger having a shape and an indoor blower that sucks indoor air from each inlet and passes through the heat exchanger to take out from the outlet, and is equipped with an air filter for capturing and removing dust between the heat exchanger and each inlet. Inside the side end part, the suction guide part which opens into an indoor unit main body, the extraction guide part which opens to the outdoors, and the ventilation unit comprised from the ventilation mechanism were arrange | positioned.

According to the present invention, by adopting a means for solving such a problem, it is possible to switch both the ventilation operation linked with the air conditioning operation such as air conditioning and heating and the ventilation operation after the air conditioning operation is stopped, thereby improving the comfort. have.

1 is an external perspective view of an indoor unit of an air conditioner showing an embodiment of the present invention;

FIG. 2 is a sectional view of an indoor unit showing the embodiment of FIG. 1; FIG.

3 is a perspective view of a state in which the front panel of the indoor unit showing the embodiment of FIG. 1 is opened;

4A, 4B are views for explaining different arrangements of indoor blowers for the heat exchanger showing the embodiment of FIG. 1;

5 is a cross-sectional view of the ventilation unit and its peripheral portion, showing the embodiment of FIG. 1;

6 is an exploded perspective view of the ventilation unit showing the embodiment of FIG. 1, FIG.

7 is a perspective view of one side of the ventilation unit showing the embodiment of FIG. 1, FIG.

8 is a perspective view of another side of the ventilation unit showing the embodiment of FIG. 1, FIG.

9 is a front view of the inside of the ventilation unit in the case where the secondary air ventilation mode showing the embodiment of FIG. 1 is selected;

10 is a front view of the inside of the ventilation unit in the case where the primary side air ventilation mode showing the embodiment of FIG. 1 is selected;

11 is a front view of the inside of the ventilation unit in the case of selecting the ventilation damper totally closed mode showing the embodiment of FIG.

12 is a view for explaining an internal state of the ventilation unit when the secondary-side air ventilation mode showing the embodiment of FIG. 1 is selected;

FIG. 13 is a view for explaining an internal state of the ventilation unit in the case where the primary-side air ventilation mode showing the embodiment of FIG. 1 is selected;

It is a figure explaining the internal state of the ventilation unit at the time of selecting the ventilation damper totally closed mode which shows embodiment of FIG.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described based on drawing.

1 is an external perspective view of an indoor unit constituting an air conditioner, FIG. 2 is a schematic longitudinal cross-sectional view of the indoor unit, and FIG. 3 is a perspective view showing the inside of the indoor unit from which the front panel is removed.

The indoor unit main body 1 is comprised from the front panel 2 and the back plate 3, and forms the horizontally long shape with a very long width direction with respect to an up-down direction. The front panel 2 is bent and protrudes to the front, and the side panels 1a are provided on both left and right sides. The back plate 3 forms a horizontally long rectangular shape and is mounted on the wall surface of the air-conditioning room.

The front suction port 4 is opened in a part of the front side of the front panel 2, and the movable panel 2a supported by the opening / closing drive mechanism 5 is fitted. When the operation stops, the movable panel 2a becomes flush with the front panel 2, and blocks all the intake ports 4, but during operation, the movable panels 2a are controlled to protrude to the front and open the intake ports 4 entirely.

An upper inlet 6 is provided over the front panel 2 and the back plate 3. The upper suction port 6 is fitted with a mold-shaped shield 7, which is divided into a plurality of space portions by the shield.

Below the movable panel 2a, a makeup plate 2b made of a translucent material constituting a part of the front panel 2 is provided over the width direction of the indoor unit main body 1. On the lower side of the decorative plate 2b, two blowout louvers 8a and 8b are provided in parallel.

Each blowout louver 8a, 8b opens and closes the blowout opening 9 provided along the lower part of the front surface of the indoor unit main body 1, and changes the posture angle according to the driving conditions so as to set the blowout direction of heat exchange air. .

In the indoor unit main body 1, the heat exchanger 10 formed in substantially reverse V shape is arrange | positioned by the front heat exchanger part 10A and the rear heat exchanger part 10B. The front heat exchanger part 10A is formed in a substantially parallel curved shape with a gap with the front panel 2, and the rear heat exchanger part 10B is formed in a straight shape so as to obliquely face the upper inlet 6 and obliquely. .

On the other hand, the air filter 11 is mounted in the indoor unit main body 1 which opposes the inlet port 4 and the upper inlet port 6 altogether. The air filter 11 is interposed between each of the inlets 4 and 6 and between the entire heat exchanger portion 10A and the upper heat exchanger portion 10B, between the upper end of the open air outlet 9 and the lower end of the front panel 2. Detachment is attached freely from.

The electrostatic precipitator 12 is mounted on the front side of the front side heat exchanger portion 10A of the heat exchanger 10 and at a position shifted to the right end side when the indoor unit main body 1 is viewed from the front side. The electrostatic precipitator 12 is composed of a charged-side electrode that charges dust in the air flowing through and a dust-side electrode that attracts and captures the charged dust.

In addition, the electrostatic precipitator 12 is an ozone generator that generates a lot of ozone when a high high voltage is applied by the charged side electrode so that the potential difference with the dust collecting side electrode becomes larger than during normal dust collection. At this time, the amount of ozone generated is increased by stopping the blower 13 or operating at a very low speed in order to restrict the flow of the surrounding air.

The indoor blower 13 is disposed between the front and rear heat exchanger portions 10A and 10B of the heat exchanger 10 and between the blowout ports 9. That is, the indoor blower 13 is located inside the heat exchanger 10 formed in an umbrella shape.

As schematically shown in Fig. 4A, the indoor blower 13 is composed of a fan motor 13M and a cross flow fan 13F in which one supporting shaft Qa is mechanically connected to the rotation shaft of the fan motor.

The axial length La of the cross flow fan 13F is substantially the same as the width direction size L of the heat exchanger 10, and is installed by shifting the position on the right side of the heat exchanger 10 when viewed from the front as a whole.

That is, the left end Qc of the cross flow fan 13F is located inward of the left side surface Qd of the heat exchanger 10, and the right end end Qe of the cross flow fan 13F is the right side surface of the heat exchanger 10. It protrudes outward from (Qf).

As shown in Fig. 4B, the axial length Lb is provided with a crossflow fan 13F shorter than the width L of the heat exchanger 10, and the left end Qc of the fan is Fig. 4A. Although it is in the same position as, the right end Qg may be aligned with the right surface Qf of the heat exchanger 10.

As a result, the support shaft Qh on the other side (left side) of the cross flow fan 13F constituting the indoor blower 13 is axially supported by the ventilation unit 15 described later. The ventilation unit 15 is disposed in a space next to the indoor blower 13 formed by shifting the position of the indoor blower 13 with respect to the heat exchanger 10.

The left side surface Qj of the ventilation unit 15 is aligned at the same position with respect to the left side surface Qd of the heat exchanger 10, and together with the indoor blower 13, the ventilation unit 15 is formed in an umbrella shape. It is mounted inside the heat exchanger 10 to be.

As shown in Fig. 2, the lower end of the front heat exchanger portion 10A is placed on the front drain plate 16a, and the lower end of the rear heat exchanger portion 10B is placed on the rear drain plate 16b. Water falling from 10A and 10B can be drained to the outside through a drain hose not shown.

In addition, some side wall outer surfaces of the front and rear side drain plates 16a and 16b are provided at positions close to the indoor blower 13, and these constitute a nose to the cross flow fan 13F of the indoor blower 13.

A partition member 17 is connected between the sidewall portions of the front and rear side drain plates 16a and 16b constituting the nose and the side portions of the outlet 9. A space surrounded by the partition member 17 serves as a blowout ventilation passage 18 communicating the nose with the blowout port 9.                 

Next, the ventilation unit 15 is explained in full detail. FIG. 5 is a cross-sectional view of the ventilation unit 15, illustrating the arrangement of another component, FIG. 6 is an exploded perspective view, and FIG. 7 is a side view of the ventilation unit. 8 is a perspective view of another side of the ventilation unit.

The ventilation unit 15 includes a unit base 20 forming the one side portion, a blowing mechanism 30 forming the other side portion, and a damper 40 provided between the unit base 20 and the blowing mechanism 30. ) And damper drive mechanism 45.

The unit base 20 has a vertical portion 20a, and a horizontal portion 20b is formed along a short edge except for the lower edge of the vertical portion, and horizontally integrally bent in a horizontal direction from the short edge of the vertical portion. The part 20c is provided.

The upper portion of the vertical portion 20a protrudes in a substantially triangular shape when viewed from the side, and coincides with a combination shape of an umbrella shape of the front heat exchanger portion 10A and the rear heat exchanger portion 10B constituting the heat exchanger 10. Doing.

The one side Qk is formed by standing along the edge of the horizontal part 20c, and the end plate Qt of the heat exchanger 10 is located here, and the heat exchanger 10 is comprised on the horizontal part 20c. The pin F is placed. By placing the heat exchanger 10 on the horizontal portion 20c, a gap is formed in a portion facing the inclined portion 20b.

A circular mounting opening 21 is opened at a substantially central portion of the vertical portion 20a, and a rib 22 is formed along the circumferential surface of the opening and bent at the inner surface side of the vertical portion 20a. Further, a reinforcing rib 23 is provided radially on the outer surface side of the vertical portion 20a along the peripheral edge of the mounting opening 21.

On the inner surface side of the vertical portion 20a, a plurality of (7) totally closed ends 24 are provided along a substantially semicircle of the opening 21 at predetermined intervals. Half of the total closing ends of the total closing ends 24 are opened, and the openings are referred to as secondary vents 25. That is, three secondary ventilation openings 25 are provided.

The water-retaining tool 26 is fixed to the mounting opening 22 of the vertical part 20a, and the water-retaining part 27 is comprised by these. As described above, the storage portion 27 axially supports the support shaft Qh on the other side (left side) of the crossflow fan 13F constituting the indoor blower 13.

Two stays 28a protrude from the inner surface side of the vertical portion 20a on the same radius of curvature. The stay 28a is formed to have a narrow diameter only at the protruding end, and the small gear 46 constituting the damper drive mechanism 45 is prevented from falling out by appropriate means after the rotation is freely fitted.

In the vicinity of the stay 28a, a plurality of stays 28b having a higher height are provided. The screw hole is provided in the axial direction from the projecting end surface of each stay 28b, and the mounting screw m which mounts and fixes the blowing mechanism 30 is fitted.

Only the stay 28b provided in the vicinity of the end portion 24 for closing is provided with the accommodating portion 29 integrally adjacent to the peripheral portion. A drive motor 47 constituting the damper drive mechanism 45 is fixed to the housing portion 29, and a drive gear 48 connected to the rotation shaft of the drive motor is freely supported for rotation.

On the other hand, the fitting portion 41 provided at the center of the damper 40 is rotatably fitted to the outer circumferential surface of the rib 21 constituting the bearing portion 27. The damper 40 is formed in a substantially plate-shaped cross section in the radial direction from the fitting portion 41, and the gear portion 42 is provided along the circular outer peripheral edge.

In the gear portion 42 of the damper 40, the two small gears 46 and the driving gear 48 described above are assembled so as to bite each other. Therefore, the damper 40 is rotated by the drive motor 47 rotatingly driving the drive gear 48, and the small gear 46 functions as an idle gear with respect to the damper gear part 42. FIG.

Moreover, a plurality (three) guide ventilation openings 43 are provided in a part of the circumferential direction between the fitting part 41 and the outer gear part 42 in the damper 40. These guiding ventilation holes 43 have the same opening size shape as the secondary ventilation holes 25 provided in the unit base vertical part 20a.

The recesses Qn formed between the guide ventilation openings 43 are substantially equal to each other in the interval between the end portions 24 for closing. The damper 40 has a gap with the inner surface of the vertical portion 20a in a state of being fitted to the rib 21, but one side of the damper 40 has a short edge of the totally closed end 24 protruding from the inner surface of the vertical portion. It is always in contact with.

Therefore, except for a state in which the guide vent 43 of the damper 40 faces the secondary vent 25 of the vertical portion 20a, each secondary vent 25 is closed by the damper 40 ( Viii)

The air blowing mechanism 30 has a suction port 31 formed on the side of the damper 40 side, a casing 33 having a rectangular outlet port 32 projecting in the circumferential direction, and a suction inlet 31 of the casing. The fan motor 34 is mounted on the opposite side, and the fan 35 is mounted on the rotating shaft of the fan motor.

The fan 35 is a so-called sirocco fan type which sucks air from the axial direction and blows it in the circumferential direction as it rotates. The fan 35 functions to suck air from the inlet port 31 of the casing 33 and blow air from the outlet port 32.

Since the blower mechanism 30 is mounted to the vertical portion 20a of the unit base 20 through the damper 40 and the damper drive mechanism 45, the blower mechanism 30 and the vertical portion 20a have a gap. .

Moreover, the circumferential surface of the blowing mechanism 30 is mounted so as to leave a gap with the inclined portion 20b and the horizontal portion 20c of the unit base 20, and the gap in the triangular protrusion of the unit base 20 is particularly large. .

As shown in FIG. 3, the drain drain nipple 50 and the ventilation nipple 51 are protruded integrally from the front end at the left end of the front drain plate 16a. The ventilation nipple 51 is larger in diameter than the drain drain nipple 50, and the nipples 50, 51 are set at the same inclination angle.

In the ventilation nipple 51, the outlet port 32 of the ventilation unit 15 is inserted, and a discharge hose (not shown) is connected to the outer peripheral surface of the nipple 51. A drain hose (not shown) is connected to the drain drain nipple 50, and each hose extends outside.

When the operation switch of the remote controller is turned ON as the indoor unit of the air conditioner configured as described above, all of the movable panels 2a which form part of the front panel 2 open the intake port 4, and the cooling operation and heating are performed. The ejection louvers 8a and 8b with which the ejection opening 9 is equipped rotate according to designation of operation, and the state is set.

At the same time, the indoor blower 13 blows the air, while the compressor of the outdoor unit is driven to start the refrigeration cycle operation. The indoor air is led into the indoor unit main body 1 from the upper inlet 6 and the entire inlet 4 and passes through the air filter 11.

Most of the dust contained in the indoor air is picked up by the air filter 11 and passes through the heat exchanger 10 in a state where the dust is removed to perform a heat exchange action. The heat exchange air is guided along the blow-out ventilation path 18, guided from the blow-out port 9 to the blow-out louvers 8a and 8b, blown out into the room, and continue the efficient air conditioning operation.

By operating the electrostatic precipitator 12, the fine dust passing through the air filter 11 is completely captured, and the purified air is blown out from the blowout port 9 through the heat exchanger 10 into the room.

Next, the operation of the ventilation unit 15 will be described. The ventilation unit 15 can switch to three types of modes, a "secondary side air ventilation mode", a "primary side air ventilation mode", and a "ventilation damper totally closed mode".

In addition, the designation of a secondary side and a primary side is based on the heat exchanger 10 here, and secondary air refers to the air after having passed through the heat exchanger 10, and primary air refers to the heat exchanger 10. The air before passing through.

9 to 11 show the inside of the ventilation unit 15 from which the blowing mechanism 30 is removed, and is a view for explaining the state of the damper 40 corresponding to each mode. 12-14 is a figure which shows typically for explaining the state of the wind corresponding to each mode in the indoor unit main body 1. FIG.

When the clean operation mode is selected at the end of the air conditioning operation, the " secondary air ventilation mode "

As shown in FIG. 9, the damper drive mechanism 45 of the ventilation unit 15 is operated to rotate the damper 40. When the guiding vent 43 of the damper 40 reaches a position facing the secondary vent 25 of the unit base 20, the rotation of the damper is stopped. The state is also shown in FIG.

Next, the blowing mechanism 30 of the ventilation unit 15 is operated, the air is sucked into the ventilation unit through the secondary ventilation opening 25 and the guiding ventilation opening 43, and the blowing outlet 32 is blown through the blowing mechanism. It is taken out from.

The indoor blower 13 performs ultra low speed operation, while the movable panel 2a completely closes the intake port 4, and the upper blowout louver 8a opens the blowout port 9 small and the lower blowout louver ( 8b) is closed.

Usually, in the state immediately after stopping by performing a cooling operation, a dehumidification operation, etc., moisture (drain) adheres to the heat exchanger 10, and the inside of the indoor unit main body 1 becomes a high humidity environment. If it is left as it is, the moisture adhering to the heat exchanger 10 and other component parts does not evaporate, and it becomes a cause of corrosion or mold.

Thus, the clean operation mode is selected to perform drying and sterilization operation in the indoor unit main body 1.                 

Specifically, a small amount of indoor air is sucked into the indoor unit main body 1 from the upper suction port 6, passes through the heat exchanger 10, and contacts other components. Therefore, the moisture existing between the fin surfaces of the heat exchanger 10 and the other component parts surface evaporates.

The air containing the evaporated moisture after passing through the heat exchanger 10, that is, the secondary side air, is sucked into the ventilation unit 15 as shown schematically in FIG. 12, and is taken out from the outlet port 32 and finally. Is discharged to the outdoors. By directly discharging air containing evaporated moisture to the outdoors, the heat exchanger 10 as well as the indoor unit main body 1 is quickly dried completely to prevent the occurrence of mold and the like.

To further explain, as shown by the dashed-dotted arrow in FIG. 5, the secondary air passes through the gap between the outer surface of the inclined portion 20b of the unit base 20 and the heat exchanger 10 and the outer surface of the vertical portion 20a. It is guided between the cross section of the cross flow fan 13F.

The secondary air is sucked into the inlet 31 of the casing 33 through the secondary vent 25 and the guide vent 43 facing each other, and is blown out from the outlet port 32.

In this way, according to the position of the damper 40, the ventilation unit 15 is provided with the 1st suction guide part Sa which guides the suction in the air in the indoor unit main body 1. As shown in FIG. On the other hand, the ejection outlet 32 becomes an ejection guide part for guiding ejection from the ventilation unit 15 to the outdoors.

After the operation is continued for a predetermined time, the electric dust collector 12 is energized. Ozone generated in the electrostatic precipitator 12 is filled in the indoor unit main body 1 and is carried by a small amount of indoor air sucked from the upper suction port 6.                 

Indoor air, including ozone, passes through the heat exchanger (10), contacts and sterilizes other components, and blocks bad odors. The air after sterilizing the inside of the indoor unit main body 1 is led to the first suction guide part Sa of the ventilation unit 15 and is discharged to the outside from the blowout guide part (outlet body) 32.

Moreover, since the electrostatic precipitator 12 was arrange | positioned at the position shifted to the right end direction of the heat exchanger 10, and the ventilation unit 15 was arrange | positioned at the left end of the heat exchanger 10, the ozone which generate | occur | produced in the electrostatic precipitator 12 Fill the inside of the indoor unit main body (1) to make the whole evenly and ventilate, and performs efficient sterilization in the main body.

After a predetermined time has elapsed, the function of the electric dust collector 12 is stopped, and if the operation of the indoor blower 13 is continued for a while, the function of the ventilation unit 15 is also stopped, and all the clean operation modes are terminated.

As a result, by selecting the clean operation mode, sterilization and purification in the indoor unit main body 1 are performed, and the air used here is discharged to the outside through the ventilation unit 15. Therefore, there is no impact on the environment for the room.

In addition, as shown in Fig. 12, during operation in the clean operation mode, only the upper blowout louvers 8a are slightly opened, and the indoor blower 13 is operated at a very low speed so that the interior of the indoor unit main body 1 passes. Partial air afterwards is blown out from the blowout louver 8a.

The blown out wind is guided along the front panel 2 and again sucked into the upper inlet 6. Therefore, a so-called short circuit wind is formed between the blowout port 9 and the upper suction port 6 in the indoor unit main body 1, which helps to clean and sanitize the front panel 2 including the movable panel 2a. .

Next, when the ventilation mode provided in the remote controller is selected, the "primary side air ventilation mode" is automatically executed. The ventilation mode may be selected in parallel with the air conditioning operation or may be selected at the time of stopping the air conditioning operation.

That is, the ventilation mode is selected when the ventilation of the room is to be performed while the cooling operation or the heating operation is performed. Or, for example, in the case where the room is completely closed when going out in the summer, when the room is full of heat and the room temperature is rapidly lowered after returning home to suppress the cooling load, it is better to select only the ventilation mode.

The indoor blower 13 executes the rotation according to the selection mode of the air conditioning operation regardless of the selection of the ventilation mode. Or if only ventilation operation is carried out. The electrostatic precipitator 12 is also turned ON according to the air conditioning operation selection mode, and is turned ON when the clean operation mode is selected, and turned off only in the ventilation mode.

The movable panel 2a and the blowout louvers 8a and 8b also open and close according to the operation mode during the air conditioning operation, and close at the stop of the air conditioning operation and the ventilation operation. In addition, since the upper suction port 6 is always open, indoor air is sucked into the indoor unit main body 1 even in the case of only the ventilation operation.

10 shows the internal state of the ventilation unit 15 when the ventilation mode is selected.

The damper drive mechanism 45 rotates the damper 40 so that the damper drive mechanism 45 is displaced when the guide vent port 43 of the damper is displaced to a position not facing the secondary vent port 25 of the unit base 20. Stops working.

The damper 40 surface contacts the short edge of the totally closed end 24 of the unit base 20 so that the secondary vent 25 is closed by the damper. On the other hand, a gap is formed between the circumferential surface of the blowing mechanism 30 and each inner surface of the unit base 20 with respect to the damper 40 side surface, and the guiding vent 43 communicates with these gaps.

FIG. 13 schematically shows the air flow when the ventilation mode is selected after the air conditioning operation is stopped.

The blowing mechanism 30 of the ventilation unit 15 operates to suck indoor air into the indoor unit main body 1 from the upper inlet 6, which is normally open. The indoor air is directed to the ventilation unit 15 as primary air before passing through the air filter 11 and before passing through the heat exchanger 10 after dust is captured, and is discharged to the outside from the outlet port 32.

More specifically, the indoor air sucked into the indoor unit main body 1 is induced as shown by the solid arrow direction in FIG.

That is, since the air conditioning operation is stopped, the indoor blower 13 is also stopped. On the other hand, since the blowing mechanism 30 of the ventilation unit 15 is operating, primary air is collected from the front of the air filter 11 and the heat exchanger 10 to the left end where the ventilation unit is arranged.

Then, the heat exchanger 10 is guided to the ventilation unit 15 between the side plate 1a of the indoor unit main body 1. As described above, a gap is formed between the unit base 20 and the casing 33 of the blower mechanism 30, and a gap is formed between the unit base and the damper 40, and for guidance. The ventilation opening 43 is open.

In this way, by the position of the damper 40, the ventilation unit 15 is formed with the 2nd suction guide part Sb which consists of these clearances, and room air is taken into the ventilation unit 15 via the 2nd suction guide part. It is suctioned and discharged | emitted from the ejection outlet 32.

As a result, the contaminated air in the room is once sucked into the indoor unit main body 1, and after passing through the filter 11 by the action of the ventilation unit 15, the ventilation unit 15 before being led to the heat exchanger 10. ) Is discharged to the outdoors. Since contaminated air does not pass through the heat exchanger 10, the ventilation effect which minimized the contamination of a heat exchanger is performed.

The above is the ventilation operation in which the air conditioning operation is stopped, but there is no problem even if the air conditioning operation is continued and the ventilation operation is executed after that. Also in this case, since the primary side air that does not pass through the heat exchanger 10 is collected and ventilated to the outside, energy saving operation with minimum energy loss caused by the air conditioning operation can be minimized.

In addition, the ventilation unit 15 is in direct communication with the outdoors via a hose connected to the ventilation nipple 51. If there is a very large amount of dust outdoors or there is a loud noise at night, it is conceivable that they invade the ventilation unit 15 through a hose and leak into the room through the indoor unit main body 1.

If the ventilation unit 15 is to be completely closed as necessary, such as an installation environment condition or a use environment condition, and you do not want to operate a ventilation mode, select the above-mentioned "ventilation damper totally closed mode" and invade dust or noise. To stop.

11 shows the damper 40 state when the ventilation damper totally closed mode is selected. That is, the damper drive mechanism 45 rotates the damper 40 so that the groove portions n between the guide ventilation holes 43 are opposite to the short edges of the totally closed end 24 of the unit base vertical portion 20a. The rotation of the damper 40 is stopped at one position.

All the guide ventilation openings 43 are surrounded by the totally closed end 24 and the ribs 21 of the unit base 20 and are in a completely closed state. Moreover, there is no change in that the secondary ventilation port 25 of the unit base 20 is completely closed by the damper 40 surface.

Therefore, as shown schematically in FIG. 14, the ventilation unit 15 is completely closed by the damper 40, and the wind flow path is blocked. The ventilation unit 15 can reliably prevent intrusion into the indoor unit main body 1 such as dust and noise outdoors and the room, thereby improving comfort.

Moreover, the ventilation unit 15 is inevitably set to the above-mentioned state after the completion | finish of normal air-conditioning operation as well as after completion | finish of the main body clean operation mode demonstrated above. In addition, if the above mode is selected at the time of air conditioning operation, it is in a state equivalent to normal air conditioning operation.

As described above, since the ventilation unit 15 is disposed inside the heat exchanger 10, it is possible to install the ventilation unit without increasing the size of the indoor unit main body 1, to save space and to operate the ventilation unit 15. It can minimize the occurrence of noise.

Moreover, since the ventilation unit 15 was equipped with the bearing part 27 with respect to one axis | shaft Qh of the horizontal flow fan 13F which comprises the indoor blower 13, the number of necessary parts is reduced and the component cost is reduced. Contribute.                 

In addition, since the second suction guide Sb formed by the position of the damper 40 sucks the primary air before passing through the air filter 11 and led to the heat exchanger 10, the dust heat exchanger (10) The amount of adhesion can be suppressed, and the loss of heat exchange energy is minimized, for example, when the ventilation operation is performed in parallel with the air conditioning operation.

Moreover, since the electrostatic precipitator 12 and the ventilation unit 15 are arrange | positioned on the side opposite to each other, the ozone produced | generated by the electrostatic precipitator is filled in the indoor unit main body 1, and it can carry out ventilation after making it spread as a whole, and the sterilization efficiency improves. Can be obtained.

According to the present invention, an air conditioner capable of improving the comfort by adding a ventilation function, in addition to providing an original air conditioner function, and suppressing an increase in the size of the main body outline, an increase in noise, and the like. You can get an indoor unit.

Claims (4)

The indoor unit main body provided with the suction port in the whole and the upper part, and the blower outlet in the lower part of the front surface, A heat exchanger accommodated inside the indoor unit main body, the front heat exchanger portion being disposed opposite to the suction port and the rear heat exchanger portion disposed opposite to the upper suction port in a reverse V-shape as viewed from the side; An indoor blower that sucks indoor air from the upper and upper suction ports and passes through the heat exchanger to take out the blowers; An air filter mounted between the heat exchanger and the upper and upper intake ports to capture and remove dust in the indoor air; A first suction guide portion disposed at one side end of the heat exchanger and inside the reverse V-shape to suction guide the air of the heat exchanger secondary side after opening into the indoor unit main body and passing through the heat exchanger, the air filter and the A second suction guide portion which opens between the heat exchangers and suction guides the primary air of the heat exchanger after passing through the air filter and the dust is captured before being introduced to the heat exchanger; An indoor unit of an air conditioner, comprising: a blow-out unit that opens to the outside; and a blower unit that sucks air from the suction guide and blows out the blow-out unit. The method of claim 1, The indoor blower is composed of a fan motor and a cross flow fan having one shaft connected to the fan motor, An indoor unit of an air conditioner, comprising: a bearing portion for supporting the other axis of the cross flow fan on one side of the ventilation unit. delete The method of claim 1, The indoor unit of the air conditioner, wherein an electric precipitator is disposed between the air filter and the heat exchanger in the indoor unit main body and on a side opposite to the ventilation unit.

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