JPH05340557A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner by which comfortableness can be obtained. CONSTITUTION:An indoor air conditioning portion 7 is arranged outdoors and is connected to indoor room by ventilation ducts 4, 4a and 4b, so as to regulate indoor temperature and air flow. The indoor air conditioning portion 7 has a damper by which changeover is executed and outside air is introduced and indoor return air is discharged to the outside, or indoor return air is introduced and circulated. By this composition, it becomes possible to execute air conditioning processes all in the open air device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having an indoor unit and an outdoor unit.

[0002]

13 to 15 are views showing a conventional air conditioner disclosed in, for example, Japanese Utility Model Laid-Open No. 3-37327.

In the figure, reference numeral 51 is a wall of a building, 52 is a cold air blowing grill provided on a long press 53 in the room, which matches the width of the long press 53 in the height direction and in the lateral direction. It has an appropriate length.

Reference numeral 54 is a grill for blowing hot air provided on the wall at the lower part of the room, which has a required shape. Both grills 5
2, 54 are determined so as to have an opening area corresponding to the air flow rate of the built-in air conditioner.

Reference numeral 55 denotes a built-in type air conditioner main body installed inside or outside the wall 51 of the building, and a blower duct is provided at the air outlet of the air conditioner main body 55. This duct is bifurcated via a damper 56 provided near the outlet of the air conditioner body 55, one of which serves as a cool air duct 57 extending upward, and the other of which serves as a warm air duct 58. The tip of the cold air duct 57 is connected to the inside of the grill 52 provided on the long press 53, and the hot air duct 58 is connected to the inside of the grill 54. The damper 56 is of a type that can be switched in tandem with the cooling / heating switching of the air conditioner main body 55.

When the air conditioner constructed as described above is operated for heating, when the switch of the air conditioner main body 55 is turned on, the damper 56 is switched as shown in FIG. The generated warm air is blown to the lower part of the room through the warm air duct 58 and the grill 54.

During the cooling operation, the damper 56 is switched to close the hot air duct 58 as shown in FIG. 15B, so that the cold air blown out from the air conditioner main body 55 flows through the cold air duct 57. Then, the cold-air grill 52 provided on the long press 53 blows off from the upper part of the room.

[0008]

However, the above-mentioned conventional air conditioner has the following problems.

A. Since return air of indoor air (hereinafter referred to as indoor return air) is not returned to the main body of the air conditioner, a static pressure difference occurs inside and outside the room, making it difficult to open and close doors and windows.

B. When the air source of the air conditioner body is taken in from outside air, it must be heated or cooled / dehumidified to the state of indoor air, which requires a lot of energy and is uneconomical.

C. If the distance between the air conditioner body and the blowing grill becomes long, the flow path resistance of the ventilation duct becomes large, the amount of air supplied to the room decreases, and the capacity becomes insufficient.

D. If the amount of pollutants in indoor air is large, ventilation is not possible and outside air cannot be cooled.

E. The indoor air cannot be humidified during heating operation.

The present invention has been made in view of the above problems, and an object thereof is to provide an air conditioner which solves these problems and is capable of comfortable air conditioning.

[0015]

According to the present invention, in order to achieve the above object, an air conditioner is constructed as shown in the following (1) to (5).

(1) An air conditioner for adjusting indoor temperature and air flow by connecting an indoor air conditioner provided outdoors to the room with a ventilation duct, wherein the air conditioner introduces outside air and returns to the room. An air conditioner equipped with switching means for switching between discharging air to the outside air and introducing indoor return air to circulate.

(2) The indoor air conditioner provided outside the room is connected to the room by a first ventilation duct that is connected to the upper part of the room and a second ventilation duct that is connected to the lower part of the room. An air conditioner that blows air into a room from a first ventilation duct and blows air into the room from the second ventilation duct during heating operation to adjust the temperature and the air flow in the room. Is an indoor heat exchanger, an air cleaning device for removing dust and deodorizing air on the air inflow side of this indoor heat exchanger, and oxygen enrichment on the air outflow side of the indoor heat exchanger for effective use of negative ions, aroma, etc. At the time of switching between cooling and heating with an active ingredient adding device for adding ingredients, the air flow is switched so that outside air or indoor return air flows into the air inflow side and air into the room flows out from the air outflow side. Switching means Painting and air conditioner.

(3) An air conditioner for adjusting indoor temperature and air flow by connecting an indoor air conditioning section provided outdoors to an indoor by a ventilation duct, wherein a speaker provided in the ventilation duct and the indoor air An air conditioner comprising: a signal generation unit that generates a signal having a waveform having a phase opposite to that of a noise waveform in the vicinity of the speaker based on a drive signal of a fan motor of the conditioning unit and supplies the generated signal to the speaker.

(4) An air conditioner for adjusting indoor temperature and air flow by connecting an indoor air conditioner provided outdoors with an air duct, and a propeller fan arranged in series in the air duct. An air conditioner including a static pressure recovery stator.

(5) An indoor air conditioner provided outside, which is connected to the room by a ventilation duct to adjust the temperature and air flow inside the room, and which is arranged above the indoor air conditioner. An air conditioner comprising: an outdoor fan chamber having a heat exchanger; and a spray means for guiding and spraying drain water flowing out from the outdoor heat exchanger to the indoor heat exchanger during heating operation.

[0021]

With the configuration (1), in the air conditioner provided outside the room, it is switched to either introduce the outside air and discharge the indoor return air, or introduce and circulate the indoor return air. With the configuration of (2) above, during cooling operation,
Air is blown out into the room from the first ventilation duct connected to the upper part of the room, and the second part connected to the lower part of the room is operated during heating operation.
Air is blown into the room from the ventilation duct of
At the time of heating switching, the outside air or indoor return air flows into the inflow side of the indoor heat exchanger, and the air flow is switched so that the air into the room flows out from the outflow side of the indoor heat exchanger,
Make sure that the air purifiers installed before and after the indoor heat exchanger and the active ingredient addition devices always operate correctly. With the configuration of (3), the noise of the ventilation duct is canceled by the sound from the speaker provided in the ventilation duct driven by the signal based on the drive signal of the fan motor of the indoor air conditioner. With the configuration (4), part of the dynamic pressure generated by the propeller fan is changed to static pressure by the stator in the ventilation duct, and the static pressure is recovered. According to the configuration of (5), during the heating operation, the drain water flowing out from the outdoor heat exchanger is sprayed on the indoor heat exchanger so that the indoor heat exchanger is humidified and the efficiency is improved.

[0022]

EXAMPLES The present invention will be described in detail below with reference to examples.

(First Embodiment) FIG. 1 is a diagram showing an outdoor unit 2 of an "air conditioner" according to a first embodiment. In the figure, 4,
4a and 4b are ventilation ducts, 5 is a wall for partitioning indoors and outdoors, 6
Reference numerals a and 6b are holes for passing the ventilation ducts 4a and 4b, 7 is an indoor air conditioning (generating) section, 18 is an outdoor fan chamber, and 25 is a machine room. The indoor air conditioner 7 is provided with a damper 8 for switching the indoor air flow direction for cooling / heating, an indoor air supply fan 9, a fan motor 31, and an indoor heat exchanger 11. In the outdoor fan chamber 18,
An outdoor heat exchanger 19, an outdoor fan 20, and a fan motor 20-1 are provided. The machine room 25 is provided with a compressor 26, a four-way valve 27, and other refrigerant circuits (details not shown), and electrical components 30.

FIG. 2 is a sectional view and a front view showing the indoor unit 1. In the drawing, 22 is an indoor air suction portion, 23a, 2
3b is an indoor air outlet, and 24 is a cooling / heating switching shutter.

FIG. 3 is a horizontal sectional view of the indoor air conditioner 7, wherein 13 is an air cleaning device having dust removing and deodorizing functions,
14 is an oxygen-enriched active ingredient addition device for adding active ingredients such as negative ions and aroma, 32 is a damper for switching the supply air source between indoor return air and outdoor air (outdoor air), 16 is exhaust of return air The port 17 is an outside air intake.

The operation will be described with reference to FIGS.

A. The indoor return air is guided to the indoor air conditioning section 7 via the ventilation duct 4.

B. When the indoor return air is processed and supplied to the room, the damper 32 is located at the position indicated by the broken line in FIG. 3, and the return air is guided to the indoor heat exchanger 11 part.

C. When the outside air is processed and supplied to the room, the damper 32 is set to the position shown in FIG. 3, the indoor return air flows out to the outside air from the exhaust port 16, and the outside air flows in to the intake port 17 for heat exchange or the like. Guided to the processing unit.

D. The air supplied to the room is dedusted and deodorized by the air purifier 13, cooled and heated by the indoor heat exchanger 11, enriched with oxygen by the active ingredient addition device 14, and the active ingredients such as negative ions and aroma. Is added,
It is sent to the room through the ventilation duct 4 by the indoor air supply fan 9.

E. By providing the outdoor fan chamber 18 on the upper side of the indoor air conditioner 7, the outdoor heat exchanger 1 is heated during heating.
Humidification is performed by guiding the drain water flowing out of 9 to the indoor heat exchanger 11 (using gravity). At the same time as humidification,
The refrigeration cycle efficiency is also improved.

F. For supplying and returning air to the room, holes 6a and 6b are made at two positions, an upper part and a lower part of the wall 5, and blows out from the upper part during cooling (return) (represented by a broken line in FIG. 1). During heating, it blows out from the bottom and sucks in from the top (shown by the solid line in Fig. 1).

In the structure of the indoor unit 1 shown in FIG. 2, both the cooling and the heating are sucked in from the same suction section 22 and blown out from the same suction section 23a.
The switching of 23b is performed by the shutter 24.

FIG. 4 shows switching of air passages for cooling and heating in the indoor air conditioning section 7. The switching damper 8 is
At the time of heating, the position of 8a in the figure (solid line), and at the time of cooling, the position of 8b in the figure (broken line).

With this configuration, the indoor return air is always allowed to flow into the indoor heat exchanger 11 from the side of the air purifying device 13 and the effective component adding device 14 is used even though the direction of the flow in the ventilation duct is changed by cooling and heating. The air purifier 13 and the active ingredient addition device 14 are always operated correctly.

(Embodiment 2) FIG. 5 is a diagram showing a main part of an "air conditioner" which is Embodiment 2. In FIG. That is, the ventilation duct 4
It is a figure which shows the means to reduce the noise inside. Other parts are the same as in the first embodiment. Based on the signal obtained from the drive signal generation circuit 32 of the fan motor 31 of the indoor air supply fan 9, a signal for producing a sound having a waveform opposite to the noise waveform in the vicinity of the speaker 40 installation portion of the ventilation duct 4 is generated. It is generated by the signal processing circuit 39 and supplied to the speaker 40.

The principle of noise reduction will be described with reference to FIG. A sound deadening effect can be obtained by outputting sound waves from the speaker 40 in a phase that cancels noise propagating in the ventilation duct 4.

With this configuration, noise can be reduced without a microphone for detecting noise in the ventilation duct 4, it is not necessary to pay attention to the reliability of the microphone, and the cost can be reduced.

(Embodiment 3) FIG. 7 is a sectional view showing the main part of the third embodiment. That is, it is a diagram showing a means for recovering the static pressure in the ventilation duct 4. Other parts are the same as in the first embodiment. 45 is a propeller fan installed in the duct 4, 4
8 is a stator for static pressure recovery, 46 is a fan motor, 47
Is a motor support that is installed in the ventilation duct 4 and is formed by ribs so as not to block the flow path.

By rectifying the swirling airflow generated by the propeller fan 45 into an axial flow by the stator 48, excess dynamic pressure can be converted into static pressure, and as a result, static pressure in the duct can be recovered. It is possible to prevent a decrease in air volume.

(Embodiment 4) FIG. 8 is a view showing the essential parts of Embodiment 4. That is, it is a diagram showing a case where the indoor heat exchanger 11 is installed horizontally, drainage of water is facilitated during cooling operation, wind pressure loss is reduced, and the water film on the surface of the indoor heat exchanger 11 is thinned. Heat transfer performance is improved.

Further, when the drain water flowing out of the outdoor heat exchanger 19 is used for humidification during the heating operation, the efficiency is improved by uniformly spraying the drain water on the indoor heat exchanger 11.

(Embodiment 5) FIG. 9 is a view showing the essential parts of Embodiment 5. That is, this is an example in which the air blow-out portion 23 and the air suction portion 22 on the indoor side are configured by separate units. The air blowout section 23 is provided with an indoor auxiliary fan 28 to extend the reach of the blown air during cooling.

In any case, the degree of freedom of the indoor unit configuration such as the configuration of FIG. 2 is greatly expanded.

In addition, a horizontal cross section of the deformation of the indoor air conditioner 7 is shown in FIG. 10, and a horizontal cross section of the deformation of the outdoor fan chamber 18 is shown in FIGS. 11 and 12. In this way, the configuration of the outdoor unit can be changed freely.

[0046]

As described above, according to the present invention, comfortable air conditioning is performed. Specifically, in the invention of claim 1, the supply air source can be switched to either the outside air or the indoor return air, and when the outside air is switched, the outdoor return air can be discharged to the outside air, making it difficult to open or close the door or window. There is no inconvenience. According to the invention of claim 2, air is blown from the upper part of the room during the cooling operation, and air is blown from the lower part of the room during the heating operation, so that head cold foot heat can be realized, and the air cleaning device and the active ingredient addition device are provided regardless of the switching of the heating and cooling. It always works correctly and provides a comfortable indoor environment. In the invention of claim 3, the noise in the ventilation duct is canceled by the speaker without using a microphone,
Noise is reduced. According to the invention of claim 4, the static pressure of the ventilation duct is recovered, and the reduction of the air volume can be prevented even when the duct is long. According to the invention of claim 5, humidification can be performed during the heating operation, and the efficiency is improved.

Further, according to the present invention, since the indoor air conditioner is provided outside the room, the work load at the time of installation can be reduced, and since there is no extension pipe, the refrigerant charge amount is reduced and the CFC saving is achieved. Further, since it is not necessary to house a heat exchanger or a fan in the indoor unit, the indoor unit can be downsized and the flexibility of the indoor unit configuration can be increased.

[Brief description of drawings]

FIG. 1 is a sectional view of an outdoor unit according to a first embodiment.

FIG. 2 is a sectional view and a front view of the indoor unit according to the first embodiment.

FIG. 3 is a horizontal sectional view of an indoor air conditioning unit.

FIG. 4 is an operation explanatory diagram of the damper 8.

FIG. 5 is a diagram showing a main part of the second embodiment.

FIG. 6 is an explanatory diagram of the principle of noise reduction.

FIG. 7 is a cross-sectional view of a main part of the third embodiment.

FIG. 8 is a sectional view of a main part of the fourth embodiment.

FIG. 9 is a sectional view showing a modification of the indoor unit.

FIG. 10 is a cross-sectional view showing deformation of the air conditioning unit.

FIG. 11 is a horizontal sectional view showing a deformation of the outdoor fan chamber.

FIG. 12 is a diagram showing another modification of the outdoor fan chamber.

FIG. 13 is a sectional view of a conventional example.

FIG. 14 is a view showing the arrangement of air outlets of a conventional example.

FIG. 15 is a diagram showing the operation of the damper in the conventional example.

[Explanation of symbols]

 2 Outdoor unit 4, 4a, 4b Ventilation duct 7 Indoor air conditioner 8 Damper 32 Damper

Claims (5)

[Claims] 1. An air conditioner for adjusting indoor temperature and air flow by connecting an indoor air conditioner provided outdoors to the room with a ventilation duct, wherein the air conditioner introduces outside air and returns air to the room. The air conditioner is provided with a switching means that switches between discharging the air to the outside air and circulating indoor return air. 2. An indoor air conditioner provided outside the room is connected to the room by a first ventilation duct connected to an upper part of the room and a second ventilation duct connected to a lower part of the room, and the first air duct is connected to the first room during a cooling operation. An air conditioner that blows air into the room from the first ventilation duct and blows air into the room from the second ventilation duct during heating operation to adjust the temperature and air flow in the room,
The indoor air conditioner includes an indoor heat exchanger, an air cleaning device that removes dust and deodorizes on the air inflow side of the indoor heat exchanger,
An active ingredient addition device that enriches oxygen on the air outflow side of the indoor heat exchanger to add active ingredients such as negative ions and aroma, and outside air or indoor return air when the air conditioner is switched between cooling and heating. An air conditioner that switches the flow of air so that air that flows into the room and flows into the room flows out from the air outflow side. 3. An air conditioner for adjusting an indoor temperature and an air flow by connecting an indoor air conditioner provided outside with an indoor through a ventilation duct, wherein a speaker provided in the ventilation duct and the indoor air conditioner. And a signal generating means for generating a signal having a waveform having a phase opposite to that of the noise waveform in the vicinity of the speaker on the basis of the drive signal of the fan motor of the other section and supplying the generated signal to the speaker. Machine. 4. An air conditioner for adjusting indoor temperature and air flow by connecting an indoor air conditioner provided outdoors to a room through a ventilation duct, wherein a propeller fan and a static fan arranged in series inside the ventilation duct are installed. An air conditioner comprising a pressure recovery stator. 5. An air conditioner for adjusting indoor temperature and airflow by connecting an indoor air conditioner provided outside with the room by a ventilation duct, wherein the outdoor heat is arranged above the indoor air conditioner. An air conditioner comprising: an outdoor fan chamber having an exchanger; and a spraying unit for guiding and spraying drain water flowing out from the outdoor heat exchanger to the indoor heat exchanger during heating operation.