JP2002061872A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner which is equipped, at the right and left of a suction port, with an air cleaning unit and a deodorizing filter which are so arranged as to be able to prevent the inflow (disturbance) of right and left winds occurring from the axial pressure difference of a cross flow fan. SOLUTION: The gap between a stabilizer 3a, which lies to leeward of the deodorizing filter large in ventilation resistance provided on one side of a suction port, and a cross flow fan 6 is set small, while the gap between a stabilizer, which lies to windward of the above air cleaning unit small in ventilation resistance provided on the other side, and the above cross flow fan is set large, and also a blast fan, which lies to leeward of the deodorizing filter, is inclined so that the blowout port 3 may be lower, by arranging a front guider 3b and a rear guider 3c as a front guider 3b' and a rear guider 3c', thus the quantities of blown-out air on both sides of right and left of the blow-out port 3 are roughly equalized.

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 air purifying unit comprising an electrostatic precipitator and deodorizing filters on the left and right sides of a suction port, and more particularly to an air conditioner in an axial direction of a cross flow fan. The present invention relates to a structure capable of preventing the flow (turbulence) of left and right winds caused by a pressure difference.

[0002]

2. Description of the Related Art A conventional air conditioner having an air purifying unit composed of an electric dust collector and a deodorizing filter on the left and right sides of a suction port and a cross flow fan on the lee of the suction port is, for example, shown in FIG.
As shown in FIGS. 12 (A) and 12 (B) and FIG. 13, an air inlet 2 is provided at least on the front surface of the air conditioner main body 1, and a stabilizer 3a is provided at a rear lower portion on the lower front surface of the air conditioner main body 1. An air outlet 3 comprising a blower casing having a guider 3b and a rear guide 3c is provided. An air passage connecting the air inlet 2 and the air outlet 3 is provided with a heat exchanger 5 having a drain pan 4 at a lower portion, and a plurality of partition plates 6a. And a plurality of blades 6b erected along the outer shape thereof, and a plurality of impellers in which the plurality of impellers are sequentially connected. And a cross flow fan 6 composed of a circular end plate 6c having a rotating shaft, and a pre-filter including a frame portion and a dust prevention filter portion formed integrally with the frame portion at the suction port 2. 7 and the left and right sides of the pre-filter 7 respectively. Facing the air cleaning unit 8 and deodorizing filter 9 was then formed by arrangement mounted.

However, the air cleaning unit 8
Since the magnitude of the ventilation resistance is different from that of the deodorizing filter 9, the pressure-wind speed characteristics in the AA cross section and the BB cross section in FIG.
Wind speed at cross section (V1) and wind speed at BB cross section (V
2), the air flow angle (θa, θb) of the air flow blown out from the blow-out port 3 is different, and the left and right air pressure difference of the cross flow fan 6 caused by the pressure difference in the axial direction. Inflow (turbulence) of the wind causes the air flow to be reduced due to air flow loss, causes noise due to turbulence and separation, and causes uneven pressure distribution, causing surging. Had problems such as

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention has been made in consideration of the above-mentioned problems, and is intended to prevent the inflow (turbulence) of the left and right winds caused by the pressure difference in the axial direction of the cross flow fan. It is an object of the present invention to provide an air conditioner provided with a filter and a deodorizing filter on the left and right sides of a suction port.

[0005]

According to the present invention, in order to solve the above-mentioned problems, a suction port is provided at least at an upper portion of a front surface of a main body, and an air outlet formed of a blower casing having a stabilizer at a rear portion is provided at a lower portion of the front surface. In the air passage connecting the suction port and the air outlet, a heat exchanger having a drain pan at the bottom, a plurality of impellers including a plurality of partition plates and a plurality of blades erected along the outer shape thereof, An impeller set in which the plurality of impellers are sequentially connected, and a cross flow fan provided on both sides of the impeller set and configured with a circular end plate having a rotating shaft in the center of the outer surface, A pre-filter including a frame portion and a dust-preventing filter portion formed integrally with the frame portion is attached to the suction port, and an air purification unit and a deodorizing filter are provided on both the left and right leeward sides of the pre-filter. Air conditioner In the above, the stabilizer which is on the leeward side of the deodorizing filter having a large ventilation resistance and the gap between the cross flow fan and the stabilizer are set on the leeward side of the air purification unit having a small ventilation resistance, and A large gap is provided between the air outlet and the cross flow fan, so that the flow rate of the blown air at the left and right sides of the outlet is substantially uniform.

[0006] The blower casing, which is on the leeward side of the deodorizing filter, is configured to be inclined with respect to the leeward side of the air cleaning unit so that the outlet is slightly lower.

[0007] Further, the clearance between the stabilizer, which is on the leeward side of the deodorizing filter, and the cross flow fan is set to be small by making a part of the stabilizer close to the cross flow fan side. ing.

[0008] Further, one of the partition plates constituting the cross flow fan is opposed to the stabilizer which is a leeward boundary position between the deodorizing filter and the air cleaning unit.

In addition, a projecting portion facing the cross flow fan is projected from the stabilizer at the leeward boundary between the deodorizing filter and the air cleaning unit.

[0010] Further, the partition plate facing the boundary position of the stabilizer is formed such that an extension portion extending outward from an outer peripheral edge thereof is continuously formed.

Further, the plurality of partition plates constituting the cross flow fan are provided with through holes at their respective centers except for those facing the boundary position of the stabilizer.

Also, the clearance between the cross flow fan and the stabilizer, which is on the leeward side of the deodorizing filter, is reduced by forming a part of the cross flow fan with a large diameter and slightly approaching the stabilizer side. The configuration has been set.

Further, one of the partition plates constituting the cross-flow fan is arranged on the cross-flow fan which is a leeward boundary between the deodorizing filter and the air cleaning unit. .

[0014] Further, a projecting portion facing the boundary position of the cross flow fan is protruded from the stabilizer, which is a boundary position on the leeward side between the deodorizing filter and the air cleaning unit.

[0015] Further, the partition plate facing the boundary position of the cross flow fan is formed such that an extending portion extending outward from an outer peripheral edge thereof is continuously formed.

Further, the plurality of partition plates constituting the cross flow fan have a configuration in which through holes are provided at the centers of the respective cross plates except for the one forming the boundary position of the cross flow fan.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as examples. FIG. 1 is an explanatory view of an air conditioner according to the present invention, (A) is a sectional view, and (B).
FIG. 2 is a perspective view, FIG. 2 is a cross-sectional view of a main part of an air conditioner according to a first embodiment of the present invention, and FIG. In the figure, (A)
4B is a front view, FIG. 4B is a front view, FIG. 4 is an enlarged view of a portion A shown in FIG. 3A, FIG. 5 is an enlarged view of a portion B shown in FIG. 4, and FIG. (B) shows another example, FIG. 6 is a sectional view showing a main part of an air conditioner according to a second embodiment of the present invention, and FIG. 7 is a second view of the air conditioner according to the present invention. 8A is a top view, FIG. 8B is a front view, FIG. 8 is an enlarged view of a portion A shown in FIG. 7A, and FIG. 10A is an enlarged view of a part B shown in FIG. 10A, and FIG. 10B is another view, FIG. 10A is a view taken in the direction of arrow a shown in FIGS. 4 and 8, and FIG. FIG. 11 is a diagram viewed from the arrow b shown in FIGS. 4 and 8, and FIG. 11 is a pressure-wind speed characteristic diagram at one side and the other side of the air outlet of the air conditioner according to the present invention.

In the drawing, 1 is an air conditioner main body according to the present invention, 2 is a suction port provided on at least a front surface of the main body 1 provided with a suction grill a, 3 is provided on a lower part of a front surface of the main body 1, and a stabilizer is provided. 3a at the rear, front guider
An outlet 5 comprising a blower casing having a 3b and a rear guide 3c and having a rotatable wind direction plate b is provided in an air passage connecting the inlet 2 and the outlet 3, and a drain pan 4 is provided at a lower portion. The heat exchanger 6 is provided in the air passage, and a plurality of impellers including a plurality of partition plates 6a and a plurality of blades 6b erected along the outer shape thereof, and the plurality of impellers are sequentially connected. A cross-flow fan, comprising a pair of impeller sets and circular end plates 6c provided on both sides of the impeller set and having a rotating shaft at the center of the outer surface, and a cross-flow fan 7 attached to and detached from the suction port 2 A pre-filter, which is mounted so as to be able to be mounted and includes a frame portion and a filter portion integrally formed with the frame portion, 8 is an air purification unit provided on the downwind side of one side of the pre-filter 7, and 9 is a pre-filter on the other side. A deodorizing filter installed on the leeward side,
The air purifying unit 8 has smaller ventilation resistance than the deodorizing filter 9.

In the basic structure described above, a structure will be described below in which the flow of left and right winds (turbulence) caused by the pressure difference in the axial direction of the cross flow fan 6 can be prevented.

The clearance between the stabilizer 3a on the downwind side of the deodorizing filter 9 having a large ventilation resistance and the cross flow fan 6 is set small through the step A, while the air cleaning unit 8 having a small ventilation resistance is provided. The gap between the stabilizer 3a on the leeward side of the cross-flow fan 6 and the cross flow fan 6 is set large through the step A, and the blast casing on the leeward side of the deodorizing filter 9 is 2 and 6, the outlet 3 is inclined so as to be slightly lower, such as the inclination angles θ1 and θ2 of the front guider 3b 'and the rear guide 3c' indicated by broken lines in FIGS. 3 has a configuration in which the flow rates of the blown air at both the left and right sides are substantially equalized.
Even if the magnitude of the ventilation resistance with the deodorizing filter 9 is different from that of the deodorizing filter 9, for example, AA in FIGS. 3B and 7B
As shown in FIG. 11 showing pressure-wind speed characteristic diagrams in the cross section and the BB cross section, the wind speed (V
Since the difference between 1) and the wind speed (V2) in the BB cross section can be reduced as compared with the case of the above-described prior art, the left and right wind generated by the pressure difference in the axial direction of the cross flow fan 6 can be reduced. In addition to preventing turbulence and separation, turbulence and separation do not occur, noise can be prevented, and variation in pressure distribution can be suppressed to prevent generation of surging.

Further, the gap between the stabilizer 3a, which is on the leeward side of the deodorizing filter 9, and the cross flow fan 6, is shown in FIGS. 2, 3 (A) and 3 (B) as the first embodiment. As shown in FIG. 4, FIG. 5A and FIG. 5B, a configuration in which a part 3a ′ of the stabilizer 3a is set to be small by slightly approaching the cross flow fan 6 side. Thereby, the gap between the cross flow fan 6 and the part 3a 'of the stabilizer indicated by the broken line in FIG. 2, which is on the leeward side of the deodorizing filter 9, is formed to be narrow to increase the wind speed at this location. As a result, it is possible to reduce the difference from the wind speed on the leeward side of the air purifying unit 8 having a small ventilation resistance, to make the pressure distribution at the air outlet 3 uniform and prevent surging from occurring.

Further, one of the partition plates 6a constituting the cross flow fan 6 is opposed to the stabilizer 3a which is a leeward boundary position between the deodorizing filter 9 and the air cleaning unit 8. Thereby, the inflow (turbulence) of the left and right winds caused by the pressure difference in the axial direction of the cross flow fan 6 at the boundary position can be more effectively prevented.

Further, the above-mentioned structure is provided by projecting a protruding portion B facing the cross flow fan 6 on the stabilizer 3a which is a leeward boundary between the deodorizing filter 9 and the air cleaning unit 8. As in the case of the example, the flow of the left and right winds (turbulence) resulting from the pressure difference in the axial direction of the cross flow fan 6 at the boundary position.
Can be more effectively prevented.

As another example, as shown in FIG. 5 (B), an extension C extending outward from the outer peripheral edge of the partition plate 6a facing the boundary position of the stabilizer 3a is provided on the partition plate 6a.
, The flow of left and right winds (turbulence) resulting from the axial pressure difference of the cross flow fan 6 at the boundary position, as in the case of the above example.
Can be more effectively prevented.

As shown in FIGS. 4, 10A and 10B, the plurality of partition plates 6a constituting the cross flow fan 6 are located at the boundary positions of the stabilizer 3a. By providing the through-holes c at the centers of the respective members except those opposed to each other, the inflow (turbulence) of the wind in the axial direction of the cross flow fan 6 at the boundary position can be more effectively prevented, while the boundary is formed. The air flow is provided in the axial direction of the cross flow fan 6 at a position other than the position, so that the air can be efficiently blown.

Next, FIGS. 6 and 7 show a second embodiment.
(A) and FIG. 7 (B), FIG. 8, FIG. 9 (A) and FIG. 9 (B), the stabilizer 3a on the lee side of the deodorizing filter 9, and the cross flow fan 6, a part of the cross flow fan 6,
It is formed to have a large diameter via the step portion A 'and is set to be small by slightly approaching the stabilizer 3a side, thereby, similarly to the case of the first embodiment described above. Even if the magnitude of the ventilation resistance between the air cleaning unit 8 and the deodorizing filter 9 is different, FIG.
FIG. 11 is a characteristic diagram of the pressure-wind speed in the AA section and the BB section in (B), and the difference between the wind speed (V1) in the AA section and the wind speed (V2) in the BB section. Can be reduced as compared with the case of the above-described prior art, so that the inflow (turbulence) of the left and right winds caused by the pressure difference in the axial direction of the cross flow fan 6 is prevented, and the blowing loss is reduced. At the same time, turbulence and separation are eliminated so that noise is not generated, and variation in pressure distribution can be suppressed to prevent occurrence of surging.

Further, one of the partition plates 6a constituting the cross flow fan 6 is disposed on the cross flow fan 6 which is a leeward boundary position between the deodorizing filter 9 and the air cleaning unit 8. This makes it possible to more effectively prevent the flow (turbulence) of the left and right winds caused by the axial pressure difference of the cross flow fan 6 at the boundary position.

As shown in FIG. 9A, for example, the stabilizer 3a, which is a boundary position on the leeward side between the deodorizing filter 9 and the air cleaning unit 8, has the boundary of the cross flow fan 6. Projection B facing position
, The flow (turbulence) of the left and right winds caused by the axial pressure difference of the cross flow fan 6 at the boundary position can be more effectively prevented.

As another example, the partition plate 6a opposed to the boundary position of the cross flow fan 6 is shown in FIG.
As shown in (B), the continuous formation of the extension portion C extending outward from the outer peripheral edge of the cross flow fan 6 at the boundary position in the axial direction as in the above-described example. The inflow (turbulence) of the left and right winds resulting from the pressure difference can be more effectively prevented.

Further, as shown in FIG. 8, FIG. 10 (A) and FIG. 10 (B), the plurality of partition plates 6a constituting the cross flow fan 6 are provided at the boundary of the cross flow fan 6. Except for those that make up the position, through holes c are provided at the respective centers, whereby the flow (turbulence) of the wind in the axial direction of the cross flow fan 6 at the boundary position is more effectively prevented. On the other hand, the cross flow fan 6 can be efficiently blown in the axial direction of the cross flow fan 6 at a position other than the boundary position.

With the above configuration, FIG. 1 (A) and FIG.
(B), FIG. 2, FIG. 3 (A) and FIG. 3 (B), FIG. 4, FIG. 5 (A) and FIG. 5 (B), FIG. 6, and FIG.
(A) and FIG. 7 (B), FIG. 8, FIG. 9 (A) and FIG. 9 (B), FIG. 10 (A) and FIG. 10 (B), and FIG. The clearance between the stabilizer 3a, which is on the leeward side of the deodorizing filter 9 having a large resistance, and the cross flow fan 6 is set to be small via the stepped portion A, while the leeward side of the air purification unit 8, which has a small ventilation resistance. The gap between the stabilizer 3a and the cross flow fan 6 is set to be large via the stepped portion A, and the blast casing, which is on the leeward side of the deodorizing filter 9, is leeward of the air cleaning unit 8. Front guider 3b 'and rear guide 3 indicated by broken lines
c ′, the inclination angle θ1 and θ2 of the outlet 3
Of the air purifying unit 8 and the deodorizing filter 9 are different in the magnitude of the ventilation resistance between the air purifying unit 8 and the deodorizing filter 9 because the air flow rate at the right and left sides of the air outlet 3 is substantially equalized. However, for example, as shown in FIG. 11, the pressure-wind speed characteristic diagrams in the AA section and the BB section in FIG. 3B and FIG.
Wind speed at cross section (V1) and wind speed at BB cross section (V
Since the difference from 2) can be reduced as compared with the case of the above-described prior art, the inflow (turbulence) of the left and right winds caused by the axial pressure difference of the cross flow fan 6 can be prevented, An air conditioner that reduces blowing loss, eliminates turbulence and separation, prevents noise from occurring, suppresses variations in pressure distribution, and effectively prevents surging.

[0032]

As described above, according to the present invention,
The air conditioner is provided with an air purifying unit and a deodorizing filter on the left and right sides of the suction port so as to prevent the flow (turbulence) of the right and left winds caused by the pressure difference in the axial direction of the cross flow fan.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an air conditioner according to the present invention, wherein (A) is a cross-sectional view and (B) is a perspective view.

FIG. 2 is a sectional view of a main part showing a first embodiment of the air conditioner according to the present invention.

FIG. 3 is an explanatory view of a main part showing a first embodiment of the air conditioner according to the present invention, wherein (A) is a top view and (B) is a front view.

FIG. 4 is an enlarged view of a portion A shown in FIG.

5 is an enlarged view of a portion B shown in FIG. 4, (A) is an example,
(B) shows other examples.

FIG. 6 is a sectional view showing a main part of a second embodiment of the air conditioner according to the present invention.

FIGS. 7A and 7B are main portion explanatory views showing a second embodiment of the air conditioner according to the present invention, wherein FIG. 7A is a top view and FIG. 7B is a front view.

FIG. 8 is an enlarged view of a portion A shown in FIG.

9 is an enlarged view of a portion B shown in FIG. 8, (A) is an example,
(B) shows other examples.

10 (A) is a view as seen from the arrow a shown in FIGS. 4 and 8, and FIG. 10 (B) is a view as seen from the arrow b shown in FIGS. 4 and 8. FIG.

FIG. 11 is a pressure-wind speed characteristic diagram at one side and another side of the air outlet of the air conditioner according to the present invention.

FIG. 12 is a cross-sectional view of an air conditioner according to a conventional example, and FIG.
Shows a deodorizing filter and its downstream, and (B) shows an air cleaning unit and its downstream.

FIG. 13 is a front view of a main part of an air conditioner according to a conventional example.

FIG. 14 is a pressure-wind speed characteristic diagram at one side and another side of an air outlet of an air conditioner according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner main body 2 Inlet 3 Outlet 3a, 3a 'Stabilizer 3b, 3b' Front guider 3c, 3c 'Rear guider 4 Drain pan 5 Heat exchanger 6 Cross flow fan 6a Partition plate 6b Blade 6c End plate 7 Prefilter 8 Air Cleaning unit 9 Deodorizing filter a Suction grill b Airflow plate c Through hole A Step (boundary position) A 'Cut part (boundary position) B Projection part C Extension part

Claims (12)

[Claims] 1. A suction port is provided at least at an upper portion of a front surface of a main body, and an air outlet formed of a blower casing having a stabilizer at a rear portion is provided at a lower portion of the front surface. A heat exchanger equipped with a drain pan, a plurality of impellers composed of a plurality of partition plates and a plurality of blades erected along the outer shape thereof, and an impeller set in which the plurality of impellers are sequentially connected. A cross-flow fan, which is provided on both sides of the impeller set and is constituted by a circular end plate having a rotating shaft at the center of the outer surface, and a frame portion and an integral part thereof are formed at the suction port. In an air conditioner equipped with a pre-filter consisting of a filter unit for preventing dust and an air cleaning unit and a deodorizing filter provided on both the left and right lee sides of the pre-filter, the leeward of the deodorizing filter having a large ventilation resistance is provided. While the gap between the stabilizer and the cross flow fan is set small, the stabilizer on the leeward side of the air purification unit having a small ventilation resistance, and the gap between the cross flow fan is set large, An air conditioner characterized by substantially equalizing the flow rate of the blown air at both right and left sides of the blower outlet. 2. The air blow casing on the leeward side of the deodorizing filter is inclined with respect to the leeward side of the air cleaning unit so that the outlet is slightly lower. The air conditioner as described. 3. A clearance between the stabilizer, which is located on the leeward side of the deodorizing filter, and the cross flow fan, is set to be small by setting a part of the stabilizer to be slightly closer to the cross flow fan. The air conditioner according to claim 1, characterized in that: 4. The stabilizer which is a leeward boundary position between the deodorizing filter and the air cleaning unit,
The air conditioner according to claim 1, wherein one of the partition plates constituting the cross flow fan is opposed to each other. 5. The stabilizer which is a leeward boundary position between the deodorizing filter and the air cleaning unit,
The air conditioner according to claim 1 or 3, wherein a protruding portion facing the cross flow fan is provided. 6. The air according to claim 4, wherein the partition plate facing the boundary position of the stabilizer is formed continuously with an extending portion extending outward from an outer peripheral edge thereof. Harmony machine. 7. A plurality of partition plates constituting the cross flow fan, wherein a through hole is provided at a center of each of the plurality of partition plates except for a plate facing the boundary position of the stabilizer. The air conditioner according to claim 1, 4, or 6. 8. A gap between the stabilizer, which is on the leeward side of the deodorizing filter, and the cross flow fan is reduced by forming a part of the cross flow fan with a large diameter and approaching the stabilizer side slightly. The air conditioner according to claim 1, wherein the air conditioner is set. 9. A cross flow fan, which is a leeward boundary between the deodorizing filter and the air cleaning unit, is provided with one of the partition plates constituting the cross flow fan. The air conditioner according to claim 8, wherein 10. A projecting portion facing the boundary position of the cross flow fan is projected from the stabilizer, which is a boundary position on the leeward side between the deodorizing filter and the air cleaning unit. The air conditioner according to claim 8 or 9, wherein 11. The partition plate facing the boundary position of the cross flow fan, wherein an extending portion extending outward from an outer peripheral edge is continuously formed on the partition plate. Air conditioner. 12. The cross-flow fan, wherein the plurality of partition plates are provided with through holes at their respective centers except for the one that forms the boundary position of the cross-flow fan. The air conditioner according to claim 8, 9 or 11.