JP4298470B2 - Air conditioner with ventilation function - Google Patents

Description

  This invention can reduce the size of the ventilation device by combining the dust collecting device provided in the indoor unit of the air conditioner and the ventilation device provided in the outdoor unit, and impairs the installation restrictions and appearance of the outdoor unit. It is related with the air conditioner which added the ventilation function.

In a conventional air conditioner with a ventilator, a ventilator comprising a ventilation fan and a ventilating duct for conveying ventilated air is arranged inside the outdoor unit of the air conditioner, and the ventilator is connected to the ventilating duct and the other is opened. The opening is provided indoors using the same piping hole as the refrigerant piping of the air conditioner (for example, refer to Patent Document 1).
JP 2000-205593 A

  Since an air conditioner equipped with a ventilation device in a conventional outdoor unit is configured as described above, when the outdoor unit and the indoor unit are arranged at a distance, a ventilation duct is required only at a distance, Because duct pressure loss increases, ventilation volume decreases.

  The recent revision of the Building Standards Law stipulates that the living space must be a building with a ventilation system of 0.5 times / h or more. I can make up for it. However, harmful substances such as dust, carbon dioxide, and carbon monoxide, which are actively generated by human inhaling tobacco, are generated during the transition period and cannot be exhausted sufficiently. Therefore, it is considered that the ventilation function of the air conditioner requires a ventilation amount that can remove the amount of harmful substances actively generated by humans.

Generally, cigarette smoke is raised as a harmful substance actively generated by humans. The amount of harmful substances generated per cigarette is carbon monoxide 6.0 × 10 ⁻⁵ [m ³ / line], carbon dioxide 2.2 × 10 ⁻³ [m ³ / line], suspended dust 19.5 [mg In order to remove these generated harmful substances and to obtain an environmental standard concentration value, the necessary ventilation volume is calculated. Carbon monoxide 6.0 [m ³ / line], carbon dioxide 3.4 [m ³ / book], suspended dust 130 [m ³ / book], and assuming that one smoke per hour is smoked, the necessary ventilation is 130 [m ³ / h] of the floating dust that needs the most ventilation. Become.

  In contrast to this necessary ventilation volume, the conventional air conditioner equipped with a conventional ventilation device has a problem that when the ventilation duct becomes long, the ventilation volume is remarkably lowered and the necessary exhaust ventilation volume cannot be obtained.

  In addition, when the outdoor unit is installed at a higher position than the indoor unit, if it is ventilated in winter, the indoor air discharged in the ventilation duct reaches the dew point due to the ventilation duct cooled by the outdoor air, and condensation water is generated. However, there is a problem that the generated condensed water flows into the indoor unit of the air conditioner and dripping occurs in the room.

  In addition, in a separator type air conditioner with a ventilation function in which a ventilation device is provided in the outdoor unit, if the outer shape of the duct connecting the room and the outside is thickened, the ventilation air volume can be secured, but the wall of the air conditioner There was a problem that it could not enter the hole, and conversely there was a problem that the ventilation air volume would be significantly reduced if everything was thinned so as to enter the wall hole.

  In addition, a bellows-like duct is used as a ventilation duct so that the duct is not crushed when bent. In this case, when the wind speed exceeds a certain level, there is a problem that high-frequency noise is generated due to the flow across the groove on the inner wall of the ventilation duct.

  In addition, in a ventilation duct connected to a ventilator, condensed water is generated inside the duct, and mold and fungi are propagated by using organic matter such as indoor dust that has entered the inside of the duct as a bait, and the duct is clogged and odor is generated. was there.

The present invention has been made to solve the above-described problems. The first object is to provide a dust collection device in an indoor unit, so that the ventilation volume is the highest among harmful substances actively generated by humans. This dust collector removes the suspended dust that is necessary, but with a slight ventilation capacity of 6 [m ³ / h] necessary to remove carbon monoxide and carbon dioxide, which cannot be removed by the dust collector, To obtain an air conditioner with a ventilation function that can remove harmful substances actively generated by humans.

  In addition, the second purpose is to isolate the noise from the ventilation fan by directing the air outlet of the ventilator provided in the outside of the outdoor unit of the air conditioner toward the inside of the outdoor unit having a good sound insulation effect. It is to obtain an air conditioner with a low noise ventilation device.

  In addition, the third purpose is to extrude the outdoor unit side sheet metal of the air conditioner and form it into a duct shape that blows ventilation air below the outdoor unit, so that a fire occurs around the outdoor unit However, it is to obtain an air conditioner with a ventilator that prevents the fire from entering the outdoor unit and prevents combustion inside the outdoor unit.

  Moreover, the 4th objective is providing the air conditioner with a ventilator which prevents a bug from entering into a ventilation duct from an inlet port by providing a grating | lattice in those inlet ports provided in the indoor side.

  In addition, the fifth object is that not only the exterior of the outdoor unit but also the indoor unit of the air conditioner and a place other than the outdoor unit by storing the ventilation fan and the control board for controlling it in a single box. But it is to obtain an air conditioner with ventilation function that can be installed.

  Moreover, the 6th objective is to obtain the air conditioner with a ventilation function which can set the ventilation amount suitable for the scene scene of life by enabling it to control the rotational speed of a ventilation fan.

  A seventh object is to provide a heat exchanger that exchanges heat of air between the indoor unit and the outdoor unit, a blower that sends air to the heat exchanger and its air passage, and a compressor that compresses refrigerant in the outdoor unit, In a separator type air conditioner with ventilation function provided with a ventilation device, the outdoor unit is installed at a higher position than the indoor unit by providing a member that separates water and air in the middle of the duct connecting the room and the outdoor If the ventilation is performed in winter, the indoor air exhausted in the ventilation duct reaches the dew point by the ventilation duct cooled by the outdoor air, and dew condensation water is generated, and the generated dew condensation water is generated in the indoor unit of the air conditioner. It is to obtain an air conditioner with a ventilation function that can prevent the occurrence of dripping in the room.

  In addition, the eighth object is to configure the ventilation duct connecting the outdoor unit and the indoor unit with two different diameters, thereby suppressing a decrease in the ventilation air volume, and by narrowing the indoor side, refrigerant piping, Even if a ventilation duct is added in addition to the signal line, it is easy to enter the wall hole, and it is possible to obtain an air conditioner with a ventilation function that can prevent the deterioration of installation.

  The ninth object is to flatten the inside of the ventilation duct connected to the ventilator so that at least 1 m is flat, so that when the inside becomes higher than the uneven wind speed, high-frequency noise is generated by the flow across the groove on the inner wall of the ventilation duct. It is to obtain an air conditioner with a ventilation function that does not generate air.

  Further, the tenth object is to provide at least one of antibacterial and antifungal effects in the ventilation duct connected to the ventilation device, so that dew condensation water is generated inside the duct, and indoor dust that has entered the duct has been detected. It is to obtain an air conditioner with a ventilation function that suppresses the problem that molds and fungi propagate by feeding organic matter such as clogged ducts and odors.

  An air conditioner with a ventilation function according to the present invention includes an indoor unit heat exchanger that exchanges heat with air, and sends indoor air to the indoor unit heat exchanger by a blower and blows out conditioned air into the room. In a separator type air conditioner comprising an outdoor unit heat exchanger chamber for exchanging heat with the outside air and an outdoor unit having a compressor for compressing refrigerant, provided upstream of the indoor unit heat exchanger for the indoor unit And a ventilator for exhausting harmful substances that cannot be removed by the dust collector and is provided in the outer casing of the outdoor unit.

  The air conditioner with a ventilating function according to the present invention removes the suspended dust, which is the most harmful cigarette smoke that is actively generated by human beings and requires the most ventilation, with the dust collector provided in the indoor unit, and collects the dust. Hazardous substances can be discharged by a ventilation device provided in the outdoor unit with a slight ventilation that cannot be removed by the device. Therefore, the main purpose of the air conditioner, which is to cool and warm indoor air with low energy, is not impaired. Has the effect of being able to arrange a sufficient indoor environment for comfortable living.

Embodiment 1 FIG.
1 to 8 are diagrams showing Embodiment 1, FIG. 1 is a configuration diagram of an air conditioner with a ventilation function, FIG. 2 is a front view of the air conditioner with a ventilation device attached, and FIG. 3 is attached with a ventilation device. 4 is a side view of the air conditioner, FIG. 4 is a cross-sectional view of the air conditioner to which a ventilation device is attached, FIG. 5 is a perspective view of a suction port of the indoor unit, and FIG. 6 is a ventilation device when a control board is provided in the ventilation device. FIG. 7 is a noise measurement result when the vent of the ventilator is blown into the outdoor unit and when the vent is blown outward, and FIG. 8 is burned around the outdoor unit of the air conditioner to which the ventilator is attached. Shows the flow of flames when

  In the figure, the ventilator 1 is provided on the side surface of the outdoor unit 20 of the air conditioner so as to be substantially the same as the width of the cover 22 of the refrigerant pipe 21 (horizontal direction of the outdoor unit 20). (See FIG. 2).

  The ventilation device 1 is connected to an indoor unit 30 provided with a dust collecting device 31 by a ventilation duct 2, and the ventilation duct 2 is configured so that the diameters of the outdoor ventilation duct 2a and the indoor ventilation duct 2b are different. Has been. The diameter of the outdoor ventilation duct 2a is larger than the diameter of the indoor ventilation duct 2b (see FIG. 1).

  As shown in FIG. 4, the ventilator 1 is provided with a ventilation blower 3 inside, and a suction port 4 facing downward to which the outdoor ventilation duct 2 a is connected, and a blower outlet so as to blow out into the outdoor unit 20. 5 is provided.

  As shown in FIG. 1, the indoor unit 30 is provided with a dust collector 31 and an indoor ventilation duct 2b upstream of the heat exchanger, and provided with an indoor unit side inlet 32 for sucking indoor air. As shown, a lattice 33 is provided upstream of the air inlet 32 on the indoor unit side.

Next, the operation will be described.
In the ventilator 1 configured as described above, indoor suspended dust is removed by the dust collector 31 provided in the indoor unit 30, and carbon dioxide and carbon monoxide that cannot be removed by the dust collector 31 are removed. For this purpose, the ventilation fan 3 and the ventilation duct 2 for connecting the outdoor unit 20 and the indoor unit 30 are provided inside the ventilation device 1, and the ventilation fan 3 is driven to cause harmful substances in the room from the inlet 32 on the indoor unit side. Is blown out into the outdoor unit 20 through the outlet 5 formed so that a sheet metal is formed into a concave shape on the side surface of the outdoor unit 20 and the wind flows downward, and harmful substances in the room are removed.

As described above, by providing the dust collecting device 31 in the indoor unit 30 of the air conditioner and providing the ventilating device 1 in the outdoor unit 20, floating that requires the most ventilation is a harmful substance actively generated by humans. Dust is removed by the dust collector 31. The ventilator 1 actively generates a person with a ventilation capacity of 6 [m ³ / h] and a slight ventilation capacity necessary to remove carbon monoxide and carbon dioxide, which cannot be removed by the dust collector 31. Remove harmful substances.

  Moreover, because the ventilation device 1 is disposed outside the outdoor unit 20, the indoor air, which is the original purpose of the air conditioner, is discharged with low energy without sacrificing the performance of heating and cooling indoor air. can do.

  Moreover, the noise from the ventilation blower 3 can be sound-insulated by directing the blower outlet 5 of the ventilator 1 provided in the exterior of the outdoor unit 20 to the inside of the outdoor unit 20 having a good sound insulation effect, and the low-noise ventilator. 1 can be obtained.

  In addition, by forming the side plate of the outdoor unit 20 into a concave shape and forming a duct shape 6 that forms the ventilating air outlet 5 below the outdoor unit 20, FIG. 8 shows the case of the downward outlet. As shown, even if a fire occurs around the outdoor unit 20, the flame 9 is directed upward along the outdoor unit 20, and thus does not enter the outdoor unit 20. Combustion inside the outdoor unit 20 can be prevented.

  In the case of the upward outlet shown in FIG. 8, the flame 9 a may enter the inside of the outdoor unit 20 from the duct shape 6 a that forms the ventilation air outlet 5 a at the upper part of the outdoor unit 20.

  Moreover, by providing the grid 33 at the indoor unit side suction port 32 provided on the indoor side, insects can be prevented from entering the ventilation duct 2 from the indoor unit side suction port 32. It is possible to prevent the generation of odors from clogs and trapped insects from dead bodies.

  In addition, the ventilation unit 1 is provided in the outdoor unit 20 and the ventilation duct 2 that is necessary for indoor ventilation, humidification, and dehumidification is configured with two different diameters, and the ventilation volume is increased by making the outdoor side thicker. By reducing the decrease in the interior and narrowing the indoor side, it becomes easy to enter the wall hole even if a ventilation duct is added in addition to the refrigerant pipe and the signal line, and this can prevent deterioration of installation.

  Further, as shown in FIG. 6, the ventilation blower 3 and the control board 7 for controlling the ventilation blower 3 are housed in one box, so that not only the outer unit of the outdoor unit 20 but also the indoor unit 30 of the air conditioner, the outdoor unit It is possible to obtain an air conditioner with a ventilation function that does not limit the installation location even in places other than the machine 20.

  In addition, since the rotation speed of the ventilation fan 3 can be controlled, the ventilation amount suitable for the scene of life can be set.

According to the above-described embodiment, the dust that is most necessary for ventilation is removed by the dust collector 31 provided in the indoor unit, and the dust collector 31 provided in the indoor unit removes the suspended dust that is the harmful substance cigarette smoke that is actively generated by humans. The ventilation capacity of 6 [m ³ / h] and the slight ventilation capacity necessary to remove carbon monoxide and carbon dioxide that cannot be removed by the exhaust can be discharged by the ventilator 1 provided in the outdoor unit 20. In addition to adding the ventilation function without impairing the function of cooling and warming the indoor air with low energy, which is the main purpose of the air conditioner, it can be combined with the dust collector 31 to produce a small amount of ventilation. It has the effect of providing a sufficient indoor environment where people can live comfortably.

  Further, by arranging the ventilator 1 outside the outdoor unit 20, the indoor air, which is the original purpose of the air conditioner, is cooled and heated with low energy, without sacrificing the performance of indoor harmful substances outside the room. Has the effect of discharging.

Embodiment 2. FIG.
The first embodiment shows a basic configuration in which the dust collecting device 31 is provided in the indoor unit 30 of the air conditioner and the ventilation device 1 is provided in the outdoor unit 20. Next, the indoor air is discharged. A discharge mechanism for discharging condensed water inside the duct that occurs when the outside air is below the dew point of the indoor air will be described.

  9 and 10 are diagrams showing the second embodiment. FIG. 9 is a cross-sectional view showing a configuration for discharging condensed water inside the duct, and FIG. 10 is a cross-sectional view showing a configuration for discharging condensed water inside the duct.

In FIG. 9, by providing a connecting member 10 that connects the outdoor ventilation duct 2a and the indoor ventilation duct 2b with a space 11 for collecting condensed water 13 flowing from the inner wall of the duct, and by providing a discharge hole 12 at the lower part thereof, The condensed water 13 generated on the inner wall of the ventilation duct 2 can be discharged.
The water separation unit corresponds to the connection member 10.

  Further, as shown in FIG. 10, a conical valve 14 is provided in the middle of the ventilation duct 2, and when the water is accumulated, the lower part 14a of the valve opens and the condensed water 13 is discharged. When air is flowing in the air, the conical valve 14 is closed to prevent the inflow of wind from the outside. Therefore, the air is generated on the inner wall of the ventilation duct 2 without reducing the intake amount from the intake port 32 on the indoor unit side. The condensed water 13 can be discharged.

Embodiment 3 FIG.
In the first and second embodiments, when the dust collecting device 31 is provided in the indoor unit 30 of the air conditioner and the ventilation device 1 is provided in the outdoor unit 20, and when condensation occurs inside the ventilation duct 2 Next, a ventilation duct inner wall structure that is used to move the outdoor or indoor air by providing the indoor unit 30 or the outdoor unit 20 with a mechanism such as ventilation and humidification will be described.

  11 and 12 show the third embodiment, FIG. 11 is a cross-sectional view of the ventilation duct, and FIG. 12 shows noise measurement results when the inner wall of the ventilation duct is uneven and flat.

  As shown in FIG. 11, the ventilation duct 2 includes a ventilation duct 2c having an uneven inner wall and a ventilation duct 2d having a flat inner wall. In general, as a material for the ventilation duct 2, an inexpensive ventilation duct 2 c having an uneven inner wall is used.

  However, in the ventilation duct 2c having an uneven inner wall, a vortex is generated in the flowing air as shown in FIG. 11, and as a result, sound is generated on the high frequency side as shown in the noise measurement result shown in FIG. It does not occur in the ventilation duct 2d having a flat inner wall.

  As described above, since the inexpensive inner wall has a concave and convex ventilation duct 2c, sound is generated on the high frequency side. Therefore, the inner wall where no sound is generated is flat and the ventilation duct 2d having a flat inner wall is formed at the end on the inlet 32 side on the indoor unit side. By adding at least 1 m, the sound generated in the ventilation duct 2c having an uneven inner wall is attenuated, and the noise of the indoor unit 30 can be reduced.

Embodiment 4 FIG.
By providing at least one of antibacterial and antifungal effects in the ventilation duct 2 connected to the ventilation device, condensed water 13 is generated inside the ventilation duct 2, such as indoor dust that has entered the ventilation duct 2. It is possible to suppress the problem that mold and fungi propagate by using organic matter as a bait and the ventilation duct 2 is clogged and smell is generated.

It is a figure which shows Embodiment 1, and is a block diagram of the air conditioner with a ventilation function. It is a figure which shows Embodiment 1, and is a front view of the air conditioner which attached the ventilation apparatus. It is a figure which shows Embodiment 1 and is a side view of the air conditioner which attached the ventilation apparatus. It is a figure which shows Embodiment 1, and is sectional drawing of the air conditioner which attached the ventilation apparatus. It is a figure which shows Embodiment 1, and is a perspective view of the suction inlet of an indoor unit. It is a figure which shows Embodiment 1, and is sectional drawing of the ventilation apparatus at the time of providing the control board in the ventilation apparatus. It is a figure which shows Embodiment 1, and is a figure which shows the noise measurement result at the time of blowing out the blower outlet of a ventilator in the outdoor unit inside, and blowing outside. It is a figure which shows Embodiment 1, and is a figure which shows the flow of the flame in the case of burning around the outdoor unit periphery of the air conditioner which attached the ventilation apparatus. It is a figure which shows Embodiment 2, and is sectional drawing which shows the structure which discharges the dew condensation water inside a duct. It is a figure which shows Embodiment 2, and is sectional drawing which shows the structure which discharges the dew condensation water inside a duct. It is a figure which shows Embodiment 3, and is sectional drawing of a ventilation duct. It is a figure which shows Embodiment 3, and is a figure which shows the noise measurement result in the case where the inner wall of a ventilation duct is uneven | corrugated, and when it is flat.

Explanation of symbols

  1 ventilator, 2 ventilation duct, 2a outdoor ventilation duct, 2b indoor ventilation duct, 2c ventilation duct with uneven inner wall, 2d ventilation duct with flat inner wall, 3 ventilation blower, 4 inlet, 5 outlet, 6 duct Shape, 7 Control board, 9 Flame, 10 Connection member, 11 Space to condense condensed water, 12 Drain hole, 13 Condensed water, 14 Conical valve, 14a Valve lower part, 20 Outdoor unit, 21 Refrigerant piping, 22 Cover, 30 indoor units, 31 dust collector, 32 air inlets on the indoor unit side, 33 lattices.

Claims (5)

An indoor unit heat exchanger that exchanges heat with air, an indoor unit that sends indoor air to the indoor unit heat exchanger by a blower and blows conditioned air into the room, and an outdoor unit heat that exchanges heat with the outside air In a separator type air conditioner comprising an exchanger room and an outdoor unit having a compressor for compressing refrigerant,
A dust collector that is provided upstream of the indoor unit heat exchanger of the indoor unit and removes suspended dust in the room;
A ventilator that is provided on the outer wall of the outdoor unit and exhausts harmful substances that cannot be removed by the dust collector ;
Forming the air outlet of the ventilation device provided in the outer shell of the outdoor unit toward the inside of the outdoor unit;
The air conditioner with a ventilating function is characterized in that a side member constituting a part of the outer shell of the outdoor unit has a duct shape for blowing out ventilation air to the lower part of the outdoor unit by extrusion molding of sheet metal .   The air conditioner with a ventilation function according to claim 1, wherein the ventilation device has a ventilation duct, and a lattice is provided at a suction port provided on the indoor side of the ventilation duct.   2. The air conditioner with a ventilation function according to claim 1, wherein the ventilation device has a ventilation duct that connects the room and the outside, and a water separation unit that separates water and air is provided in the middle of the ventilation duct. Machine.   The air conditioner with a ventilation function according to claim 1, wherein the ventilator has a ventilation duct for connecting the room and the outside, and the duct diameter on the indoor unit side is made smaller than the duct diameter on the outdoor unit side.   2. The air conditioner with a ventilating function according to claim 1, wherein the ventilator has a ventilation duct connecting the room and the outside, and the inside end of the ventilation duct is flattened at least 1 m inside. .

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