JP2730351B2 - Air conditioner - Google Patents

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]

2. Description of the Related Art FIG. 13 and FIG.
BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view and sectional drawing which show the conventional window installation type air conditioner shown by 141126 gazette. In the drawing, reference numeral 1 denotes a projecting hollow structure provided on the indoor side by increasing the width of a vertical frame on the wall side of the window glass door 2, and reference numerals 3 and 4 denote suction ports and blowouts provided on the indoor side surface of the hollow structure 1. The mouth 5 is an air conditioner main body installed on the outdoor side, the air conditioner main body having a built-in fan 6 and a heat exchanger 7, the reference numeral 8 is a ventilation duct connecting the hollow structure 1 and the air conditioner main body 5, and the reference numeral 9 is a ventilation. This is a shielding plate for isolating the inlet 3 and the outlet 4 installed in the duct 8.

[0003] In the operation of the conventional example, the room air sucked from the inlet 3 passes through the ventilation duct 8 as shown by the arrow, and is cooled or warmed by the heat exchanger 7 in the air conditioner body 5. The air is blown out of the outlet 4 again through the ventilation duct 8 by the fan 6.

[0004] As another conventional example, an air conditioner described in Japanese Patent Application Laid-Open No. 1-300130 shown in FIG. 15 has been proposed.

[0005]

Problems to be Solved by the Invention
The conventional air conditioner disclosed in Japanese Patent Publication No. 26 has the following problems. a. The air supplied from the air conditioner main body to the hollow structure in the room radiates or absorbs heat to the outside air in the ventilation duct on the way, and the capacity loss increases. b. The air blowing noise of the fan of the air conditioner main body propagates in the ventilation duct, and the noise from the air outlet of the hollow structure goes into the room. c. If the generation of pollutants (stove, tobacco, etc.) in the indoor air is large, it is impossible to air-condition with all the outside air. The conventional air conditioner disclosed in JP-A-1-300130 has the following problems. a. The noise due to the indoor side blower and the refrigerant noise at the time of starting and stopping is large. b. It can supply outside air but cannot exhaust it. For this reason,
In the case of a highly airtight house, a difference in static pressure between the inside and outside of the house occurs, and it becomes difficult to open and close the door. c. When the generation of pollutants (such as stoves and cigarettes) in the indoor air is large, since there is no exhaust function, the indoor wall, ceiling, and floor are soiled. d. All outside air conditioning is not possible.

The present invention has been made to solve the above problems, and an object of the present invention is to simultaneously realize the following. a. Reduce indoor noise. b. Reduce the size of indoor units. c. Reduce heat loss from piping. d. Allows air supply and exhaust ventilation. e. Enables all outdoor air conditioning. The following items are also aimed at improving comfort. f. Improve airflow distribution and temperature distribution. g. Incorporate radiation air conditioning.

[0007]

An air conditioner according to the present invention comprises an indoor unit divided into two parts, an indoor air blow-out part and a suction part, and an indoor supply air provided outside and supplied to the indoor unit. An outdoor unit having an indoor air generation unit having a damper that can be switched to indoor return air or outdoor air, an indoor unit and an outdoor unit are connected, and indoor supply air flows and is connected to the indoor air generation unit. A connection pipe having a double pipe structure having a pipe and an outer pipe through which indoor return air flows and which is connected to an outdoor unit and which is covered with a heat insulating material is provided.

In addition, a slit hole is formed in the indoor air blow-out portion, the slit opening being widened from the upstream side to the downstream side of the connection portion with the connection pipe.

Further, a motor for rotating the indoor air blowing section is provided in the indoor air blowing section.

In addition, the indoor unit is of a wall-mounted type, a blower for cooling is installed above the wall, a blower for heating is installed near the floor below the wall, and a damper for switching the blower between cooling and heating is provided. Was.

Further, an indoor air blowing portion of the indoor unit is provided on the floor surface, and a flow path of the blown air is provided below the floor.

[0012] Further, there is provided a flow path switching unit which is connected to the connection pipe and switches a flow path between the indoor blown air and the indoor return air. During cooling, the flow path switching unit was operated to reverse the positions of the indoor air outlet and the indoor air inlet.

[0013]

According to the air conditioner of the present invention, the indoor fan noise is reduced, the indoor unit is reduced in size, ventilation is possible, and the heat loss from the connecting pipe to the outside air is reduced.

The supply air velocity distribution from the outlet of the indoor air outlet can be blown out uniformly in the longitudinal direction of the blower, and the room temperature distribution can be kept uniform.

Further, by rotating the indoor air blowing section with a motor, the air can be blown more uniformly in the longitudinal direction of the blowing section, and the room temperature distribution can be made uniform.

[0016] Further, by making the indoor unit a wall-embedded type, cool air is blown out from the head during cooling, and warm air is blown out from the feet during heating to further improve comfort.

[0017] Further, by providing a flow path for blown air below the floor, both radiation air conditioning from the floor surface and convection air conditioning can be realized, thereby improving comfort.

In addition, by inverting the blow-out portion and the suction portion during cooling and heating, comfort is improved.

[0019]

[Embodiment 1] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG.
, 1 is an indoor unit, 2 is an outdoor unit, 3 is a connection pipe between the indoor unit 1 and the outdoor unit 2, 4 is an outlet of the indoor unit, 5 is a return air suction unit, and 6 is a wall. The outdoor unit 2 includes an indoor air generation unit 11, a machine room 12, and an outdoor fan room 13 integrated. The indoor air generator 11 includes an indoor heat exchanger 14, an indoor fan 15, and dampers 16 and 17 for switching supply air between return air and outside air. The machine room 12 includes a compressor 18, a four-way valve 19, and other refrigerant circuit components (not shown). The outdoor fan chamber 13 includes an outdoor heat exchanger 20 and an outdoor fan 21. The arrows in the figure indicate the flow of air. FIG. 2 shows a sectional view of the connection pipe 3. 34 is an inner pipe through which room supply air flows, 35 is an outer pipe through which room return air flows, 36
Is a heat insulating material provided outside the outer tube 35.

Next, the operation will be described with reference to FIG. During normal air conditioning, the damper 16 of the indoor air generating unit 11 is at the position 16a in the figure, and the damper 17 is in a closed state, and the return air from the room is heated or cooled through the indoor heat exchanger 14.・ Perform dehumidification. In the case of air conditioning with total outside air, the damper 16 of the indoor air generating unit 11 is located at a position 16b in the figure, the damper 17 is in the open state, the indoor air is supplied to the indoor heat exchanger 14, and the indoor return air is Released to the outside air. When the heating and cooling processes are not performed in the indoor heat exchanger 14, the ventilation and the outside air cooling can be performed by setting the damper 16 to the position 16b in the drawing. The supply air having a large temperature difference from the outside air is supplied to the indoor unit through the inner pipe 34 having the double pipe structure of the connection pipe 3. Outside the inner tube 34 is an outer tube 35
Since the heat is insulated by the heat insulating material 36, heat loss from the connection pipe 3 to the outside air is significantly reduced. Since there is no heat exchanger or fan inside the indoor unit 1, the size can be reduced and the degree of freedom of the form can be increased. Further, the blowing sound is made of the heat insulating material 3 of the connecting pipe 3.
6 can greatly reduce.

Embodiment 2 FIG. Next, a second embodiment of the present invention will be described with reference to FIGS.
3 is a cross-sectional view of the indoor unit 1, FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, and FIG. 5 is a cross-sectional view taken along line BB of FIG. In each of the drawings, reference numeral 4 denotes an indoor air blowing section, 5 denotes an indoor air suction section, and 23 denotes a separation section between the blowing section 4 and the suction section 5. 6 and 7
FIG. 5 is a partial detailed view of the indoor air blowing section 4 shown in FIGS. 2 to 4, and 9 is a slit hole formed in the air blowing section 4. When the indoor blown air is supplied from the right side by the connection pipe 3, the opening size of the slit 9 is changed to the left side (downstream side).
By gradually increasing the temperature, the supply air velocity distribution from the outlet 4 can be uniformly blown out in the longitudinal direction of the blowout portion, and the room temperature distribution can be kept uniform. FIG.
Fig. 7 shows an example in which one slit 9 is used and the opening area is gradually changed. Fig. 7 shows an example in which a plurality of slits 9 are provided and each opening area is changed.

Embodiment 3 FIG. FIG. 8 shows an example in which a motor 10 is connected to the indoor air blowing section 4 and rotated. By appropriately setting the slit holes 9, the air velocity distribution in the longitudinal direction of the blowing section can be further uniformed. In addition, the room temperature distribution can be made uniform.

Embodiment 4 FIG. FIG. 9 shows that the indoor unit 1 is embedded in the wall, the blowout part 4a for cooling is installed above the wall, and the blowout part 4b for heating is installed near the floor below the wall, and the blowout part is switched between cooling and heating.
A damper 25 is provided. With this configuration, cool air is blown out from the head during cooling, and warm air is blown out from the feet during heating, so that comfort is further improved.

Embodiment 5 FIG. FIG. 10 shows an indoor unit 1 in which the indoor air blowing section 4 of the indoor unit 1 is provided on the floor surface, and a flow path of the blowing air is provided under the floor. Because of this, both radiant air conditioning from the floor surface and convective air conditioning can be realized, and comfort is improved. Furthermore, since only the living space except for the extra space in the upper part of the room needs to be air-conditioned, energy can be saved.

Embodiment 6 FIG. FIG. 11 shows an example of the case of heating, in which the indoor air blowing section 4 of the indoor unit 1 is provided on the floor, and the indoor air suction section is provided on the ceiling. During cooling, the positions of the blowout section 4 and the suction section 5 are reversed. In order to enable such an operation, a switching unit 40 for switching the flow path between the indoor blown air and the indoor return air is provided.
Is connected to the connection pipe 3. Channel switching unit 40
A switching slide part 41 is built in the inside, and the blowing part 4 and the suction part 5 are inverted by cooling and heating by moving the slide. This allows
Improves comfort.

[0026]

According to the air conditioner of the present invention, the air blowing noise is reduced, the size of the indoor unit is reduced, ventilation is possible, and the heat loss from the connecting pipe to the outside air is reduced. Further, the distribution of the supply air velocity from the outlet of the indoor air outlet can be uniformly blown out in the longitudinal direction of the outlet, and the room temperature distribution can be kept uniform. In addition, by rotating the indoor air blowing portion by the motor, the air can be blown out more uniformly in the longitudinal direction of the blowing portion, and the room temperature distribution can be made uniform. Also,
By making the indoor unit a wall-embedded type, cool air blows out from the head during cooling and warm air blows out from the feet during heating to further improve comfort. In addition, by providing the flow path of the blown air below the floor, both radiation air conditioning from the floor surface and convection air conditioning can be realized, and comfort is improved. In addition, comfort is improved by reversing the blow-out portion and the suction portion during cooling and heating.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is a sectional view of a connection pipe of the air conditioner according to Embodiment 1 of the present invention.

FIG. 3 is a cross-sectional view of an air conditioner according to Embodiment 2 of the present invention.

FIG. 4 is a sectional view of the air conditioner according to Embodiment 2 of the present invention, taken along line AA of FIG. 3;

FIG. 5 is a cross-sectional view of the air conditioner according to Embodiment 2 of the present invention, taken along line BB of FIG. 4;

FIG. 6 is a partial detailed view of an indoor outlet of an air conditioner according to Embodiment 2 of the present invention.

FIG. 7 is a partial detailed view of an indoor outlet of an air conditioner according to Embodiment 2 of the present invention.

FIG. 8 is a partial detailed view of an indoor outlet of an air conditioner according to Embodiment 3 of the present invention.

FIG. 9 is an air path sectional view of an air conditioner according to Embodiment 4 of the present invention.

FIG. 10 is an air path sectional view of an air conditioner according to Embodiment 5 of the present invention.

FIG. 11 is an air path sectional view of an air conditioner according to Embodiment 6 of the present invention.

FIG. 12 is an air path cross-sectional view of an air conditioner according to Embodiment 6 of the present invention.

FIG. 13 is a perspective view of a conventional air conditioner.

FIG. 14 is a sectional view of a conventional air conditioner.

FIG. 15 is a sectional view of a conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Outdoor unit 3 Connecting pipe 11 Indoor air generation part 16 Damper

Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location F24F 13/065 F24F 13/065 13/10 13/10 D (56) References JP-A-3-148536 (JP) JP-A 1-296031 (JP, A) JP-A 62-43243 (JP, U) JP-A 3-77119 (JP, U) JP-A 2-89228 (JP, U) 50-2536 (JP, B1)

Claims (6)

(57) [Claims] 1. An indoor unit divided into two parts, an indoor air blow-out unit and a suction unit, and a damper provided outside and capable of switching indoor supply air supplied to the indoor unit to indoor return air or outdoor air. An outdoor unit having an indoor air generation unit having: an indoor pipe connecting the indoor unit and the outdoor unit, the indoor supply air flowing therethrough, and the indoor return air being connected to the indoor air generation unit; Circulating, and connected to the outdoor unit,
An air conditioner comprising: a connection pipe having a double pipe structure having an outer pipe coated with a heat insulating material around the connection pipe. 2. The air conditioner according to claim 1, wherein the indoor air blowing section is provided with a slit hole that is widened from an upstream side to a downstream side of a connection portion with the connection pipe. 3. The air conditioner according to claim 2, wherein a motor for rotating the indoor air outlet is provided in the indoor air outlet. 4. The indoor unit is of a wall-embedded type, a blower for cooling is installed above the wall, a blower for heating is installed near the floor below the wall, and a damper for switching the blower between cooling and heating is provided. The air conditioner according to claim 1, wherein the air conditioner is provided. 5. The air conditioner according to claim 1, wherein the indoor air blowing section of the indoor unit is provided on a floor surface, and a flow path of the blown air is provided below the floor. 6. A flow switching unit connected to the connection pipe to switch a flow path between the indoor blow air and the indoor return air, wherein the indoor air blow section at the time of heating is provided on a floor surface, and the indoor air suction is provided. The air conditioner according to claim 1, wherein a portion is provided on a ceiling surface, and the position of the indoor air blowout portion and the position of the indoor air suction portion are reversed by operating the flow passage switching unit during cooling.