JP2001311531A - Indoor unit of air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the indoor unit of an air-conditioner to improve air volume performance in a compact casing and to reduce the generation of noise. SOLUTION: The indoor unit of the air-conditioner comprises a cross flow fan 15 situated in the casing 10 having air inlet parts 12 and 13 formed in a lower part and a front and an air outlet part 14 formed in a lower front; a rear guider 17 to form a supply air passage 18, communicating with the air outlet part, in cooperation with a stabilizer 16 disposed opposite to the cross flow fan with a crest part situated in the proximity of t cross flow fan; first and second heat exchangers 19 and 20, each consisting of lower and upper parts, positioned on the front side and the rear side of the cross flow fan on the windward side of the cross flow fan; and water pans 21 situated on the undersides of the respective hest exchangers. The heat exchangers can be situated in an organic manner in the spade of the casing decreased in height, whereby the indoor unit can be formed in a compact manner and air volume performance can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of a short-height air conditioner having a cross-flow blower type blower circuit.

[0002]

2. Description of the Related Art In recent years, more and more air conditioners used indoors have been used to improve the performance as well as to reduce the size of equipment.

A conventional air conditioner using this type of cross-flow blower type blower circuit is disclosed in, for example,
As described in Japanese Patent No. 64568, the configuration is as shown in FIG.

That is, in the figure, reference numeral 1 denotes a housing of an indoor unit of an air conditioner, and a cross flow fan (cross flow fan) 2 located at an upper inside and a cross flow fan at the windward side of the cross flow fan 2. 2, a heat exchanger 3 comprising a V-shaped part and a vertical part disposed below the inside and a water receiving tray 4 below the heat exchanger 3.
And a stabilizer 5. When the cross flow fan 2 rotates, a blowing action in the direction of the arrow is generated, whereby the room air is sucked in from the suction port 6 on the lower surface of the housing 1 and heat exchanged by the heat exchanger 3. And a rear guide 7 formed by a blower circuit 8, a blow-out opening 9 directed to a lower front surface of the housing 1.
More blown out. The heat exchanger 3 includes a first heat exchanger 3a, a second heat exchanger 3b, and a second heat exchanger 3b forming a V-shaped portion.
Heat exchanger 3c forming a vertical portion vertically disposed above
Consists of The stabilizer 5 has the peak portion 5 a close to and opposed to the cross flow fan 2.

[0005]

However, in the above-mentioned conventional configuration, the cross-flow fan 2, the heat exchanger 3, and the outlet 9 are not properly configured and arranged. There was a problem that the expected air volume performance could not be obtained. That is, the cross flow fan 2 and the heat exchanger 3 are arranged in the height direction of the housing 1 and the first heat exchanger 3a forming the V-shaped part of the heat exchanger 3
And the second heat exchanger 3b is disposed so as to straddle the front and back under the cross flow fan 2, and the third heat exchanger 3c is disposed vertically behind the cross flow fan 2 and has an outlet. The part 9 faces downward at the front of the housing 1. Accordingly, the casing 1 has a certain size in both height and depth and is not compact, and the first heat exchanger 3a and the second heat exchanger 3b, which form the V-shaped part of the heat exchanger 3, The heat exchange air volume was not obtained as expected for the size of the three heat exchangers 3c with the cross flow fan 2 interposed and straddling the front and rear under the three heat exchangers 3c.

An object of the present invention is to solve such a conventional problem, and a main object of the present invention is to provide an indoor unit of an air conditioner in which the air volume performance is improved and the noise is reduced in a compact housing. And

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a housing having a suction port at a lower portion and a front portion, and a blow-off port at a front portion or a front lower portion, respectively. A cross-flow fan provided inside the body and having a rotation axis in a substantially horizontal direction, a heat exchanger disposed on the windward side of the cross-flow fan, and a ridge portion disposed close to and opposed to the cross-flow fan. A stabilizer provided, and a rear guider provided on the rear side of the cross flow fan, forming a ventilation path communicating with the stabilizer with the blowout port, wherein the heat exchanger is located on the front side of the cross flow fan, A first heat exchanger comprising an upper portion and an upper portion, and a second heat exchanger located on the rear side of the cross flow fan and comprising a lower portion and an upper portion, wherein a water pan is provided below each of the heat exchangers. With That.

[0008] According to the above means, the heat exchanger can be organically disposed in the space of the case having a reduced height, and the indoor unit can be made compact and the air volume performance can be improved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a housing having a suction port at a lower portion and a front portion, and a blowout portion at a front portion or a lower portion of the front portion. , A cross flow fan having a rotation axis in a substantially horizontal direction, a heat exchanger disposed on the windward side of the cross flow fan, and a ridge portion disposed close to and opposed to the cross flow fan. And a rear guider that is provided on the rear side of the cross flow fan and forms an air passage that communicates with the stabilizer with the blowout port.The heat exchanger is located on the front side of the cross flow fan,
A first heat exchanger comprising a lower part and an upper part; and a second heat exchanger located behind the cross flow fan and comprising a lower part and an upper part, wherein a water receiving tray is provided below each of the heat exchangers. It is provided.

In the above embodiment, since the first heat exchanger and the second heat exchanger each having a lower portion and an upper portion are separately arranged before and after the cross flow fan, a casing having a low height and a small depth is provided. The cross flow fan and the heat exchanger can be organically arranged in the space. In particular, when the outlet is disposed in front of the lower surface of the housing, it is possible to increase the effective area of the first heat exchanger by utilizing a large space formed in front of the crossflow fan in the housing. .

According to a second aspect of the present invention, there is provided a housing having a suction opening at a lower portion and a front portion, and a blowout opening at a front portion or a lower portion of the front portion, and provided inside the housing. A cross-flow fan having a rotation axis in a horizontal direction, a heat exchanger disposed on the windward side of the cross-flow fan, a stabilizer disposed so that a peak portion is closely opposed to the cross-flow fan, and A rear guider is provided on the rear side of the flow fan and forms a ventilation path communicating with the stabilizer with the outlet. The heat exchanger is located on the front side of the cross flow fan and has a substantially inverted first shape. A heat exchanger and a second heat exchanger, which is located on the rear side of the cross flow fan and has a substantially rectangular shape, are provided with water trays below each of the heat exchangers.

In the above embodiment, a substantially inverted first letter is used.
Since the heat exchanger and the second heat exchanger in a substantially rectangular shape are arranged separately in front of and behind the cross flow fan, the cross flow fan and the heat exchanger can be combined in the space of the housing with reduced height and depth. It becomes possible to arrange it. In particular, when the outlet is disposed at the front of the lower surface of the housing, the effective area of the first heat exchanger can be increased by utilizing the wide front space of the cross flow fan in the housing.

According to a third aspect of the present invention, in the first or second aspect, the second heat exchanger is formed in a substantially rectangular shape, and a lower portion thereof is arranged substantially vertically. It is.

In the above embodiment, the lower portion of the second heat exchanger is disposed substantially vertically so that the distance from the rear guider can be secured, and the air sucked by the rotation of the cross flow fan exchanges heat. This facilitates passage between the lower part of the second heat exchanger and the rear guider.

According to a fourth aspect of the present invention, in the first or second aspect, the second heat exchanger is formed in a substantially rectangular shape, and a lower portion thereof is directed rearward in the housing to an upper portion. Are respectively inclined forward in the housing.

In the above embodiment, the second heat exchanger formed in a substantially rectangular shape is located on the rear side of the cross flow fan in the housing, and the lower and upper portions of the inclined heat exchanger are respectively formed by the cross flow fan. It is possible to arrange them so as to straddle in the vertical direction.

The invention described in claim 5 is the first invention.
In any one of the fourth to fourth aspects, the planar shape of the housing having two mounting surfaces to be mounted on the wall of the air-conditioned space so as to face each other is substantially a fan shape or a substantially triangular shape.

In the above embodiment, it is possible to install the housing as an indoor unit along the wall at the corner of the room, and to blow air from the corner (corner) of the indoor wall to the center of the room. Can be blown out.

According to a sixth aspect of the present invention, in the fifth aspect, the housing has a substantially fan-shaped planar shape having two mounting surfaces to be mounted opposite to the wall of the air-conditioned space,
An air passage formed by a stabilizer and a rear guider is arranged in a substantially horizontal direction.

In the above embodiment, when the plane shape is formed in a substantially fan-shaped casing, the blow-out opening communicating with the air passage arranged in a substantially horizontal direction is formed in an arc shape along the front lower edge of the casing. It becomes possible to do. Therefore, when the airflow path is obliquely downward as in the conventional example, the airflow path bottom faces upward as the plane shape approaches the left and right end sides of the arc-shaped front surface of the substantially fan-shaped housing, and This has an effect of preventing the portion from being along the lower edge of the front surface of the housing.

[0021] The invention described in claim 7 is the first invention.
In any one of the sixth to sixth aspects, an upper suction port is provided in an upper portion of the housing located on the upstream side above the second heat exchanger.

In the above embodiment, the rotation of the cross flow fan allows the air guided to the first and second heat exchangers to be supplied to the upper portion of the housing in addition to the suction ports provided at the lower and front portions of the housing. Air can also be guided to the upper part of the second heat exchanger from the suction port provided on the upstream side of the heat exchanger,
The suction air path as a whole becomes large, and the air volume can be increased.

According to an eighth aspect of the present invention, in the fifth aspect, the first heat exchanger located on the front side of the cross flow fan in the housing is located on the rear side of the cross flow fan in the housing. The length of the cross flow fan in the rotation axis direction is longer than that of the second heat exchanger.

In the above-described embodiment, in the case of a housing having a substantially fan shape or a substantially triangular shape in plan view, the housing expands to the left and right as it approaches the front of the housing. The first heat exchanger can be installed with a longer length in the rotation axis direction of the cross flow fan than the second heat exchanger located on the rear side of the cross flow fan. Therefore, the first heat exchanger and the second heat exchanger are arranged before and after the cross flow fan in the housing, and the effective area is further increased in the space of the housing where the height of the housing is lower than the conventional example. Thus, the first heat exchanger can be arranged.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an indoor unit of an air conditioner according to the present invention will be described below with reference to FIGS.

(Embodiment 1) FIG. 1 is an external perspective view showing a state in which an indoor unit of an air conditioner is installed on a wall according to an embodiment corresponding to the first and second aspects of the present invention. FIG. 2 is a cross-sectional view showing the indoor unit.

1 and 2, reference numeral 10 denotes a wall 11 in the room.
A low-height, horizontally long and flat housing that constitutes an indoor unit installed in a lower portion having a front suction opening 12a having a front suction grille 12a on a front surface and a lower suction grille 13a on a lower surface being a lower portion. A suction port 13 is provided, and a blow-out port 14 is provided between the front portion and the lower suction port 13 on the front side of the lower surface and directed downward and forward.
Reference numeral 15 denotes a cross-flow fan having a horizontal rotation axis installed in a lateral direction substantially in the center of the housing 10, and reference numeral 16 denotes a ridge 1.
The stabilizer 6a is positioned close to the cross flow fan 15 and is located on the leeward side of the cross flow fan 15, and 17 is a rear guider.
6 and the rear guider 17, an air passage 18 (also referred to as a diffuser) that descends toward the front of the housing to guide the wind generated by the rotation of the cross flow fan 15 to the outlet 14.
Is formed.

Reference numerals 19 and 20 denote a first portion comprising an upper portion 19a and a lower portion 19b which are located in front of and behind the cross flow fan 15 on the windward side of the cross flow fan 15 and are provided in the housing 10 so as to sandwich the cross flow fan 15. Heat exchanger, a second heat exchanger consisting of an upper part 20a and a lower part 20b. The first heat exchanger 19 has an upper portion 19a inclined toward the cross flow fan 15 and a lower portion 19b arranged vertically in a substantially inverted shape. In addition, the second heat exchanger 20 is arranged in a substantially rectangular shape in which the upper part 20 a is vertical and the lower part 20 b is inclined rearward in the housing 10.

Reference numeral 21 denotes a first heat exchanger 19 and a second heat exchanger 2
A water tray for receiving dew condensation water from 0;
A heat insulating member provided on the back surface of each of the heat exchangers 19 and 20
A filter for purifying dust and dirty air in the air flowing into the air inlet is provided so as to cover the front suction port 12 and the lower suction port 13. Reference numeral 24 denotes a gutter for receiving the condensation water from the second heat exchanger 20.

In the above embodiment, when the cross flow fan 15 is rotated in the direction of the arrow shown in FIG. 2, the air indicated by the arrow flowing from the front suction grill 12 a of the housing 10 receives the first heat from the front suction port 12. Sucked into exchanger 19,
In addition, the air indicated by the arrow that has flowed in from the lower suction grill 13 a of the housing 10 is supplied from the lower suction port 13 to the second heat exchanger 2.
The air which has been sucked in and heat exchanged is blown to the cross flow fan 15,
4 is blown obliquely downward (in the direction of the arrow). At this time, the condensed water generated in the first heat exchanger 19 and the second heat exchanger 20 flows down to the respective water trays 21.

In this embodiment, in particular, the cross flow fan 1
The first heat exchanger 19 on the front side of the cross flow fan 15 is arranged so that the upper portion 19a is inclined toward the cross flow fan 15 and the lower portion 19b is arranged in a substantially inverted V-shape. The exchanger 20 has the upper part 20a vertically and the lower part 20b
Are arranged in a substantially rectangular shape inclined to the rear side in the housing 10 so that the cross flow fan 15 is sandwiched from the front and rear.
0, the inlets 12 and 13 are provided at the front and lower portions, and the outlet 14 is arranged at the front lower surface of the housing 10.
The height of the first heat exchanger 19 can be reduced, and the depth of the first heat exchanger 19 can be reduced.
The effective area of the second heat exchanger 20 can be increased, and the air volume performance can be improved. In particular, since the outlet 14 is arranged at the front of the lower surface of the housing 10, the first space is formed by using a large space formed in the housing 10 in front of the cross flow fan 15.
The effective area of the heat exchanger 19 can be easily increased.

In this embodiment, the upper part 20a of the second heat exchanger 20 stands vertically, and the distance between the upper part 20a and the upper end of the rear guider 17 is increased. The air that has passed around the upper end of the rear guider 17 is likely to flow into the airflow path, and the airflow can be increased due to a reduction in ventilation resistance.

Further, in this embodiment, the upper part 20a of the second heat exchanger 20 is vertically arranged, and the upper part 19a of the first heat exchanger 19, which is the front side of the cross flow fan 15, and the upper part of the second heat exchanger 20. The height of the housing 10 can be reduced because the housings 20a are spaced apart in the horizontal direction. Normally, if a portion without a heat exchanger is widely present above the cross flow fan 15, the inflow of air into the cross flow fan 15 is obstructed, and the cross flow fan 15 becomes unstable.
In this embodiment, the flow that has passed through the lower portion 20b of the second heat exchanger 20 wraps around the upper end of the rear guider 17 and generates a flow at the upper portion of the cross flow fan 15, thereby compensating for the above instability. (Embodiment 2) FIG. 3 is a cross-sectional view showing an indoor unit of an air conditioner according to an embodiment corresponding to the first to third aspects of the present invention. It is. This invention is different from the invention described in the first embodiment in that the lower part of the second heat exchanger is substantially vertical and the upper part is inclined toward the cross flow fan side. The same reference numerals are given to portions having the function and effect, detailed description is omitted, and different points will be mainly described.

Reference numeral 200 denotes a second heat exchanger in which an upper portion 200a is inclined toward the cross flow fan 15 and a lower portion 200b is vertically arranged in a substantially rectangular shape. The lower portion 200b of the second heat exchanger 200 is vertically arranged so as to keep a space between the second heat exchanger 200 and the rear guider 17.

In the above embodiment, when the cross flow fan 15 is rotated in the direction of the arrow shown in FIG. 3, the air indicated by the arrow which has flowed in from the front suction grill 12a of the housing 10 is supplied from the front suction port 12 by the first heat. Sucked into exchanger 19,
In addition, the air indicated by the arrow that has flowed in from the lower suction grill 13 a of the housing 10 is supplied from the lower suction port 13 to the second heat exchanger 2.
The air that has been sucked into the heat exchanger 00 and is subjected to heat exchange is blown to the cross flow fan 15 and blown obliquely downward (in the direction of the arrow) from the blow-out port 14 through the blowing path 18. At this time, the condensed water generated in the first heat exchanger 19 and the second heat exchanger 200 flows down to the respective water trays 21.

In this embodiment, in particular, the cross flow fan 1
The first heat exchanger 19 on the front side of the cross flow fan 15 is arranged so that the upper portion 19a is inclined toward the cross flow fan 15 and the lower portion 19b is arranged in a substantially inverted V-shape. The exchanger 200 inclines the upper part 200 a toward the front side (the cross flow fan 15 side) in the housing 10, and
0b is arranged in a substantially rectangular shape with the cross flow fan 15 sandwiched from the front and rear, suction ports 12 and 13 are provided at the front and lower portions of the casing 10, and the outlet 14 is connected to the casing 10 Since the housing 10 is arranged at the front lower surface, the height of the housing 10 can be reduced, the depth can be reduced and the housing can be made compact, and the effective area of the first heat exchanger 19 and the second heat exchanger 200 can be increased. And the air volume performance can be improved. In particular, since the outlet 14 is disposed at the front of the lower surface of the housing 10, the effective area of the first heat exchanger 19 can be easily increased by using a large space formed in the housing 10 in front of the cross flow fan 15. Can be increased.

The lower portion 200b of the second heat exchanger 200
And the distance between the lower part 200b and the lower part of the rear guider 17 is increased, so that the lower part
00b passes through the lower part 20 of the second heat exchanger 200.
Ob and the lower part of the rear guider 17 easily pass through to the upper end of the rear guider 17, so that the ventilation resistance can be reduced and the air volume can be increased.

(Embodiment 3) FIG. 4 is a cross sectional view showing an indoor unit of an air conditioner according to an embodiment corresponding to the first, second and fourth aspects of the present invention. This invention is different from the inventions described in the first and second embodiments in that the lower part of the second heat exchanger is located on the rear side in the housing,
The upper part is inclined toward the front side (cross flow fan side) in the housing, and portions having the same configuration and operation and effect as those of the first embodiment are denoted by the same reference numerals, and detailed description is omitted. The explanation will focus on the points.

Reference numeral 201 denotes a second heat exchanger in which an upper portion 201a is arranged in a front side (cross flow fan 15 side) in the housing 10 and a lower portion 201b is arranged in a substantially rectangular shape inclining to the rear side in the housing. Is what it is.

In the above embodiment, when the cross flow fan 15 is rotated in the direction of the arrow shown in FIG. 4, the air indicated by the arrow that has flowed in from the front suction grill 12a of the housing 10 is supplied from the front suction port 12 by the first heat. Sucked into exchanger 19,
In addition, the air indicated by the arrow that has flowed in from the lower suction grill 13 a of the housing 10 is supplied from the lower suction port 13 to the second heat exchanger 2.
The air that has been sucked into the heat exchanger 01 and is subjected to heat exchange is blown to the crossflow fan 15 and blown obliquely downward (in the direction of the arrow) from the blowout port 14 through the blower passage 18. At this time, the condensed water generated in the first heat exchanger 19 and the second heat exchanger 201 flows down to the respective water trays 21.

In this embodiment, in particular, the first heat exchanger 19 on the front side of the cross flow fan 15 is arranged in a substantially inverted V shape in which the upper portion 19a is inclined toward the cross flow fan 15 and the lower portion 19b is made vertical. And cross flow fan 1
5, the second heat exchanger 201 on the rear side
0, the lower part 20
1b is inclined to the rear side in the housing and arranged in a substantially rectangular shape so as to sandwich the cross flow fan 15 from the front and rear, and suction ports 12 and 13 are provided at the front and lower portions of the housing 10 to blow out the air. Since the mouth 14 is disposed at the front of the lower surface of the housing 10, the height of the housing 10 can be reduced, the depth can be reduced, and the housing 10 can be made compact. However, the first heat exchanger 19 and the second heat exchanger can be used. The effective area of 201 can be enlarged, and the air volume performance can be improved.

In particular, the upper part 201a and the lower part 201b
Since the second heat exchangers 201 made of are arranged in a rectangular shape, a heat exchanger having a larger area can be housed in the short housing 10 as compared with the first and second embodiments. The air flow can be increased by reducing the ventilation resistance due to the decrease in the vessel passing wind speed.

Further, since the outlet 14 is disposed at the front of the lower surface of the housing 10, the effective area of the first heat exchanger 19 is utilized by utilizing the wide space formed in the housing 10 in front of the cross flow fan 15. Can be easily increased.

(Embodiment 4) FIGS. 5 (a) and 5 (b) are external views showing a state in which an indoor unit of an air conditioner according to an embodiment corresponding to the fifth aspect of the present invention is installed on a wall. FIG. 6 is a perspective view and a bottom view, and FIG. 6 is a transverse sectional view showing the indoor unit. The present invention differs from the first to third embodiments in that the housing is formed in various shapes, and portions having the same configuration and operation and effect as those of the first embodiment are denoted by the same reference numerals. Therefore, detailed description is omitted, and different points are mainly described.

As shown in FIGS. 5 (a) and 5 (b), reference numeral 100 denotes a housing having a fan-shaped planar shape (planar sectional shape), which is adjacent to a room (space to be air-conditioned) so as to be installed at a ceiling corner. It has two mounting surfaces 100a that are mounted opposite to the wall 11, and the front surface where the front suction port 12 is located has an arc shape. Then, as shown in FIG. 6, the housing 100 has components therein in the same arrangement as in the first embodiment.

The housing 10 shown in FIGS. 7 (a) and 7 (b)
Reference numeral 1 denotes an isosceles triangle of a planar shape (a planar cross-sectional shape), which has two mounting surfaces 101a, and a front surface where the front suction port 12 is located forms a straight plane.

Further, FIGS. 8 (a), (b), (c),
The housing 102 shown in FIG. 5D has a fan-shaped planar shape shown in FIGS. 5A and 5B, and the housings 100 and 101 have a planar shape shown in FIGS. 7A and 7B with an isosceles triangle. Is slightly deformed into a substantially fan shape and a substantially triangular shape. Of course, the housing 102 has two mounting surfaces 102a, and the front surface where the front suction port 12 is located forms a straight plane or an arc.

In the above embodiment, the operation of air conditioning
The operation and effect thereby are the same as those of the first embodiment, and the housings 100, 101, and 102 can be installed at the corners of the room with the mounting surfaces 100a, 101a, and 102a, respectively. Can blow air.

As described above, in the present embodiment, the plane cross-sectional shape having the two mounting surfaces for mounting the housing so as to face the wall surface of the air-conditioned space is substantially fan-shaped or substantially triangular.
In addition to a compact housing, this housing can be installed in a relatively small room in a well-balanced manner by effectively utilizing the corners of the room, and the range of use can be expanded.

(Embodiment 5) FIGS. 9 (a) and 9 (b) are external views showing a state in which an indoor unit of an air conditioner according to an embodiment corresponding to the sixth aspect of the present invention is installed on a wall. FIG. 10 is a perspective view and a bottom view, and FIG. 10 is a cross-sectional view showing the indoor unit. The present invention relates to the first and fourth embodiments.
10 is different from the first embodiment in that an air passage formed by a stabilizer and a rear guider is formed in a substantially horizontal direction as shown in FIG. Are denoted by the same reference numerals, detailed description thereof will be omitted, and different points will be mainly described.

That is, as shown in FIGS. 9 (a) and 9 (b), the housing 100 has two mounting surfaces 100a which are mounted opposite to the corner wall 11 of the room (the space to be air-conditioned) and has a planar shape. Is substantially fan-shaped. The housing 100 has a front surface that forms an arc surface and a front suction port 1 at the top.
2 has an arc-shaped outlet 14a at the lower edge thereof. On the other hand, the arc-shaped outlet portion 14a
Is formed in a substantially horizontal direction by a stabilizer 16b and a rear guider 17b.

In the above embodiment, the operation of air conditioning and
The function and effect thereby are the same as those of the first embodiment, and the housing 100 can be installed at the corner of the room with the mounting surface 100a, so that the air can be blown toward the center of the room. Therefore, not only can a compact housing be used, but also this housing can be installed in a relatively small room in a well-balanced manner by effectively utilizing the corners of the room, and the range of use can be expanded. .

In particular, in the fifth embodiment, the air passage 18a is formed substantially horizontally, and the air outlet 14a is provided along the lower edge of the front surface forming the arc surface of the housing 100.
The air can be smoothly and widely blown, and the indoor unit can be easily manufactured.

That is, in general, when the outlet is formed in an arc shape at the front of the housing, the air passage 18 formed by the stabilizer 16 and the rear guider 17 shown in FIG. It is necessary to gradually reduce the length from the center to the left and right ends in correspondence with the arc-shaped outlet. However, as shown in FIG.
In the case where the air passage 18 formed by the rear guider 17 and the rear guider 17 is directed obliquely downward, the left and right ends are gradually shortened from the center in accordance with the arc shape of the outlet, and the rear guider becomes closer to the left and right ends. Of the air outlet begins to rise, and as a result, the outlet is deformed upward at the left and right ends from the center.

In the present embodiment, however, the stabilizer 16b and the rear guide 17b are provided to prevent the above-mentioned outlet from being deformed upward at the left and right ends from the center.
And the air passage 18a is formed in a substantially horizontal direction.
It is connected to the outlet 14a along the lower edge of the front surface, which is an arc surface of 00. Therefore, the housing 10
The outlet 14a can be easily manufactured along the lower edge of the front surface having an arc-shaped surface of 0, and the outlet 14a has no deformation in the entire region from the center to the left and right ends.
The air can be blown smoothly and widely. (Embodiment 6) FIG. 11 is an external perspective view showing a state where an indoor unit of an air conditioner according to an embodiment of the present invention is installed on a wall, and FIG. FIG. Embodiment 1 of the present invention
The second embodiment differs from the first embodiment in that an upper suction port is additionally provided in the upper part of the second heat exchanger and also on the upper surface of the casing on the upstream side, and the same configuration and operation as in the first embodiment. The same reference numerals are given to the parts having the effect, detailed description is omitted, and different points will be mainly described.

As shown in FIG. 12, the housing 10 has an upper suction opening 120 having an upper suction grill 120a near the upper portion 20a of the second heat exchanger 20 and also on the upper surface of the housing on the upstream side. It is provided. Therefore, the suction port including the upper suction port 120 is provided at three places: a front portion, a lower portion, and an upper portion of the housing 10. And the upper suction port 12
In addition, a filter 23 for purifying dust and dirty air in the air flowing into the second heat exchanger 20 is also provided at 0.

In the above embodiment, when the cross flow fan 15 is rotated in the direction of the arrow shown in FIG. 12, the air indicated by the arrow flowing in from the front suction grill 12a of the casing 10 receives the first heat from the front suction port 12. The air indicated by the arrow drawn into the exchanger 19 and flowing from the lower suction grill 13a of the housing 10 is mainly sucked into the lower portion 20b of the second heat exchanger 20 from the lower suction port 13 and further the housing 1
The air indicated by an arrow flowing from the upper suction grille 120a is mainly sucked into the upper part 20a of the second heat exchanger 20 from the upper suction port 120, and the heat-exchanged air is blown to the cross flow fan 15 to be blown. The air is blown obliquely downward (in the direction of the arrow) from the air outlet 14 through the air outlet 18. At this time, the first heat exchanger 19, the second heat exchanger 20
The dew water generated in step (1) flows down to each water tray 21.

The same operation and effect as those of the first embodiment can be obtained.
Air easily enters the upper part 20a of the heat exchanger 20,
The air volume can be increased by reducing the ventilation resistance.
(Embodiment 7) FIGS. 13A and 13B show an eighth embodiment of the present invention.
15 is an external perspective view and a bottom view showing a state in which an indoor unit of an air conditioner is installed on a wall in one embodiment corresponding to the invention described in FIG. 14, FIG. 14 is a cross-sectional view showing the indoor unit, and FIG. FIG. 2 is an internal arrangement configuration diagram when the indoor unit is viewed from below. The present invention relates to the first and fourth embodiments.
Is different from the first embodiment in that the length of the first heat exchanger in the rotation axis direction of the cross flow fan is longer than that of the second heat exchanger. The same reference numerals are given to portions having the same effects as those of the first embodiment, and the detailed description is omitted, and different points will be mainly described.

As shown in FIGS. 13 (a) and 13 (b), the housing 100 has two mounting surfaces 100a which are mounted so as to face the corner wall 11 of the room (space to be air-conditioned) and have a substantially planar shape. It is a fan shape. The housing 100 has a front suction opening 12 at an upper portion with a front surface forming an arc surface,
An arc-shaped outlet port 14a is formed at the lower edge portion. Since such a casing 100 spreads right and left as it goes to the front, the length of the cross flow fan 15 in the rotation axis direction is longer on the front side than on the rear side with respect to the cross flow fan 15 in FIG. .

Therefore, in the present embodiment, the first heat exchanger 19 located on the front side of the cross flow fan 15 is rotated more than the second heat exchanger 20 located on the rear side of the cross flow fan 15. It is installed in the housing 100 with a longer axial length. Further, the housing 100
As shown in FIG. 14, components are internally provided in the same arrangement as in the first embodiment.

In the above embodiment, the operation of air conditioning and
The operation and effect by this are described in the first and fourth embodiments.
Is the same as

Further, the first heat exchanger 19 uses a space longer in the direction of the cross flow fan rotation axis on the front side of the cross flow fan 15 generated due to the shape of the housing 100, and the cross flow than the second heat exchanger 20 is used. Since the length of the fan 15 in the rotation axis direction is increased, a heat exchanger having a maximum area can be accommodated even in a compact housing, and a reduction in ventilation resistance due to a decrease in wind speed passing through the heat exchanger. Thereby, the air volume can be increased.

Although the invention of the above embodiment has been described with reference to the case of the case 100 having a fan-shaped plane, the case 101 shown in FIG. 7 has an isosceles triangular shape, and FIGS.
The same operation and effect can be expected even if the present invention is applied to the other substantially fan-shaped casing 102 shown in FIG. Further, in FIG. 15, the length of the first heat exchanger 19 in the cross flow fan rotation axis direction is shorter than that of the cross flow fan 15, but the first heat exchanger 19 may be longer. .

[0064]

As is apparent from the above description, the invention according to the first aspect of the indoor unit of the air conditioner of the present invention has a suction opening at the lower part and the front part, and a front part or a downward blowing part. A housing having an opening, a cross flow fan provided inside the housing and having a rotation axis in a substantially horizontal direction, a heat exchanger arranged on the windward side of the cross flow fan, and the cross flow fan. The heat exchanger includes a stabilizer provided so as to oppose the ridge portion in close proximity, and a rear guider provided on the rear side of the cross flow fan and forming an air passage communicating with the stabilizer with the outlet portion. A first heat exchanger located on the front side of the cross flow fan and comprising a lower portion and an upper portion, and a second heat exchanger located on the rear side of the cross flow fan and comprising a lower portion and an upper portion; A cross-flow fan and a heat exchanger are organically arranged in a reduced height and depth housing with a water tray below the exchanger to reduce the size of indoor units and improve airflow performance. be able to.

According to a second aspect of the present invention, there is provided a housing having a suction opening at a lower portion and a front portion, and a blowout opening at a front portion or a lower portion of the front portion, and a housing provided inside the housing. A cross-flow fan having a rotation axis in a horizontal direction, a heat exchanger disposed on the windward side of the cross-flow fan, a stabilizer disposed so that a peak portion is closely opposed to the cross-flow fan, and A rear guider is provided on the rear side of the flow fan and forms a ventilation path communicating with the stabilizer with the blowout port. The heat exchanger is located on the front side of the cross flow fan, and has a substantially inverted configuration including a lower portion and an upper portion. A first heat exchanger having a U-shape and a second heat exchanger, which is located at a rear side of the cross flow fan and has a substantially rectangular shape including a lower portion and an upper portion, and a lower portion of each heat exchanger. With a water tray The first heat exchanger and the second heat exchanger are arranged separately before and after the cross flow fan, and the first heat exchanger is substantially inverted and the second heat exchanger is substantially rectangular. Since they are arranged, the housing can be made compact and the air flow performance can be improved by increasing the area of the heat exchanger.

According to a third aspect of the present invention, in the first or second aspect, the second heat exchanger is formed in a substantially rectangular shape, and a lower portion thereof is disposed substantially vertically. Thus, the intake air passes between the lower part of the second heat exchanger and the rear guider and easily flows to the upper end of the rear guider, so that the airflow can be increased due to a decrease in ventilation resistance.

According to a fourth aspect of the present invention, in the first or second aspect, the second heat exchanger is formed in a substantially rectangular shape, and a lower portion thereof is directed rearward in the housing. Are inclined to the front side in the housing, respectively, so that the second heat exchanger having a larger area can be accommodated in the housing having a shorter height, and a reduction in the ventilation resistance due to a decrease in the wind speed passing through the heat exchanger reduces the airflow. Increase can be achieved.

The invention described in claim 5 is the first invention.
5. The compact casing according to claim 4, wherein the casing has two mounting surfaces that are opposed to a wall surface of the air-conditioned space and has a substantially fan-shaped or substantially triangular planar shape. In addition, the housing can be effectively used in the corners of the room, and can be installed in a small room in a well-balanced manner.

According to a sixth aspect of the present invention, in the fifth aspect, the housing has a substantially fan-shaped planar shape having two mounting surfaces that are mounted to face the wall surface of the air-conditioned space. Since the air passage formed by the rear guide is arranged in a substantially horizontal direction, the outlet at the front of the housing can be easily manufactured, and the air can be blown more smoothly and widely over the outlet.

Further, the invention described in claim 7 is the first invention.
7. The air conditioner according to claim 6, wherein an upper suction port is provided at an upper portion of the housing located on the upstream side above the second heat exchanger, and air is exchanged from the suction port of the entire housing. The intake air path leading to the vessel becomes large, and the air volume performance and the heat exchange efficiency can be improved by reducing the ventilation resistance.

According to an eighth aspect of the present invention, in the fifth aspect, the first heat exchanger located on the front side in the housing with respect to the cross flow fan is located on the rear side in the housing with respect to the cross flow fan. The length of the cross flow fan in the rotation axis direction is longer than that of the second heat exchanger, and the housing is compact due to the arrangement of the first heat exchanger and the second heat exchanger before and after the cross flow fan in the housing. In addition, the area of the first heat exchanger can be increased by effectively utilizing the space of the casing having a substantially fan-shaped or substantially triangular planar shape, and the air volume performance can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a state where an indoor unit of an air conditioner according to a first embodiment of the present invention is installed on an indoor wall.

FIG. 2 is a cross-sectional view showing the indoor unit.

FIG. 3 is a cross-sectional view showing an indoor unit of the air conditioner according to the second embodiment.

FIG. 4 is a cross-sectional view showing an indoor unit of the air conditioner according to the third embodiment.

FIG. 5A is an external perspective view illustrating a state where an indoor unit of the air conditioner according to the fourth embodiment is installed on a wall. FIG. 5B is a bottom view illustrating the indoor unit.

FIG. 6 is a cross-sectional view showing an indoor unit of the air conditioner according to the fourth embodiment.

7A is an external perspective view showing a state where an indoor unit of an air conditioner of another example according to Embodiment 4 is installed on a wall. FIG. 7B is a bottom view showing the indoor unit.

8A to 8D are plan outline views showing other indoor units of the air conditioner according to the fourth embodiment.

9A is an external perspective view showing a state where an indoor unit of the air conditioner according to Embodiment 5 is installed on a wall. FIG. 9B is a bottom view showing the indoor unit.

FIG. 10 is a transverse sectional view showing the indoor unit of the air conditioner according to the fifth embodiment.

FIG. 11 is an external perspective view showing a state where the indoor unit of the air conditioner according to the sixth embodiment is installed on a wall.

FIG. 12 is a cross-sectional view showing the indoor unit.

13A is an external perspective view showing a state where an indoor unit of the air conditioner according to the seventh embodiment is installed on a wall. FIG. 13B is a bottom view showing the indoor unit.

FIG. 14 is a cross-sectional view showing the indoor unit.

FIG. 15 is a diagram showing the internal arrangement of the indoor unit when viewed from below.

FIG. 16 is a cross-sectional view of an indoor unit of a conventional air conditioner.

[Explanation of symbols]

 10, 100, 101, 102 housing 100a, 101a, 102a mounting surface 11 wall 12 front suction port 13 lower suction port 120 upper suction port 14, 14a outlet port 15 cross flow fan 16, 16b stabilizer 17, 17b Rear guider 18, 18a Blow path 19 First heat exchanger (heat exchanger) 19a Upper part 19b Lower part 20, 200, 201 Second heat exchanger (heat exchanger) 20a, 200a, 201a Upper part 20b, 200b, 201b Lower part 21 Water tray

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshiki Izumi 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 3L050 BA01 BA05 3L051 BE04 BE05 BE07

Claims (8)

[Claims] 1. A housing provided with a suction opening at a lower portion and a front portion, and a front opening portion or a blow-down opening portion at a front lower portion, and a cross provided inside the housing and having a rotation axis in a substantially horizontal direction. A flow fan, a heat exchanger disposed on the windward side of the cross flow fan, a stabilizer disposed so as to face the cross flow fan close to the peak, and a stabilizer provided on the rear side of the cross flow fan, A rear guider that forms an air passage that communicates with the stabilizer with the outlet, the heat exchanger is located in front of the cross flow fan, a first heat exchanger including a lower portion and an upper portion, and the cross flow fan An indoor unit for an air conditioner, comprising: a second heat exchanger comprising a lower portion and an upper portion, which is located on the rear side, and a water receiving tray provided below each of the heat exchangers. 2. A housing having a suction port at a lower portion and a front portion, and a front portion or an outlet at a lower portion of the front portion, and a cross provided inside the housing and having a rotation axis in a substantially horizontal direction. A flow fan, a heat exchanger disposed on the windward side of the cross flow fan, a stabilizer disposed so as to face the cross flow fan close to the peak, and a stabilizer provided on the rear side of the cross flow fan, A rear guider for forming an air passage communicating with the stabilizer with the blow-out port, wherein the heat exchanger is located on a front side of the cross flow fan, and has a substantially inverted V-shaped first heat exchanger including a lower portion and an upper portion; A second heat exchanger having a substantially rectangular shape including a lower portion and an upper portion, which is located on the rear side of the cross flow fan, and a water receiving tray is provided below each of the heat exchangers. Indoor unit of an air conditioner Tsu door. 3. The heat exchanger according to claim 1, wherein the second heat exchanger is formed in a substantially rectangular shape, and a lower portion thereof is disposed substantially vertically.
An indoor unit for an air conditioner according to item 1. 4. The method according to claim 1, wherein the second heat exchanger is formed in a substantially rectangular shape, and a lower portion thereof is inclined rearward in the housing and an upper portion thereof is inclined forward in the housing. The indoor unit of the air conditioner as described. 5. The housing according to claim 1, wherein a plane shape having two mounting surfaces to be mounted facing the wall of the air-conditioned space is substantially fan-shaped or substantially triangular.
An indoor unit for an air conditioner according to any one of the above. 6. The housing has a substantially fan-shaped planar shape having two mounting surfaces that are mounted to face the wall of the air-conditioned space.
The indoor unit for an air conditioner according to claim 5, wherein the air passage formed by the stabilizer and the rear guider is arranged in a substantially horizontal direction. 7. The air conditioner according to claim 1, wherein an upper suction port is provided at an upper portion of the housing located on the upstream side above the second heat exchanger. Indoor unit. 8. The first heat exchanger located on the front side of the cross flow fan in the housing is closer to the rotation axis direction of the cross flow fan than the second heat exchanger located on the rear side of the cross flow fan in the housing. The indoor unit of an air conditioner according to claim 5, wherein the length is increased.