JP3141663B2 - Indoor unit of 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 a crossflow type blower circuit and a structure used in an air conditioner or the like.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Laid-Open No. 4-68921, a conventional cross-flow blower type air conditioner is shown in FIG.
It is configured as follows. An air passage 3 is formed between the inlet 1 and the outlet 2, and the air passage 3 can be moved along the inner surface of the front cover 4 to the ceiling of the underframe 5 in the air passage 3. A detachable air filter 6, a heat exchanger 7 bent into three, and a fan 8 are disposed inside the air filter 6, and the heat-exchanged air is sent to the outlet 2 by the fan 8, and the wind direction to the room is The wind speed is adjusted by the blade 9. Reference numeral 10 denotes a drain pan for receiving dehumidified water falling from each heat exchanger 7 and also a wall constituting a part of the air passage 3.

[0003]

However, in the crossflow blower having the above-mentioned structure, the space between the heat exchanger and the fan is small, and there is no room for installing accessories such as a heater.

[0004] Further, folding the heat exchanger in three becomes complicated in processing, and further requires new equipment for assembling and mounting, which leads to an increase in cost.

[0005] In addition, simply disposing a fan inside a heat exchanger bent into three causes a drift, resulting in a non-uniform flow velocity distribution, leading to a deterioration in flow performance.

[0006] A first technical means of the present invention for solving the above-mentioned problem comprises two independent heat exchangers and a long plate connecting the two heat exchangers, which are separated from each other. Distribute
Space formed from the provided heat exchanger and the long plate
Insert the accessories into the rear guide and the stabilizer.
In the section of the point of closest approach with each of the crossflow fans
The cross flow fan is disposed so as to surround the entire area in the suction direction as viewed from the center of the cross flow fan with the two heat exchangers.
It is an air conditioner .

[0007] The second technical means is that a single folded heat exchanger, a flat heat exchanger, and a long plate connecting each heat exchanger are provided from the center of the crossflow fan. It is an air conditioner arranged to surround the whole area in the suction direction.

[0008] A third technical means is that the lower part of the folded heat exchanger is inclined to the front side to form a "-" shape or an inverted "-" shape, and two heat exchangers are formed. The air conditioner is arranged so as to surround the whole area in the suction direction when viewed from the center of the cross flow fan by long plates connecting the respective components.

A fourth technical means is that the long plate connecting the two heat exchangers is bent at the center to form a "H" shape, so that the dehumidified water is supplied to the front heat exchanger and the rear heat exchanger. Allow it to flow to both heat exchangers. The air conditioner is arranged so as to surround the whole area in the suction direction when viewed from the center of the cross flow fan by the long plate and two heat exchangers.

[0010]

[0011]

According to the above configuration, the space between the two independent heat exchangers and the fan is widened, so that there is room for installing accessories such as a heater. The space between the heat exchanger and the fan can be widened at the center by the fourth technical means.

In addition, since a two-fold heat exchanger and a flat heat exchanger are used, conventional equipment can be used for processing, and assembly and installation are relatively simple, so that cost increase does not occur.

[0013] By surrounding the entire region in the suction direction viewed from the center of the fan of the cross flow blower with a heat exchanger, the suction flow can be made smooth and a flow field with small turbulence can be formed to reduce noise. Further, the inflow velocity distribution at the fan outer peripheral portion is made uniform, and the flow rate performance is improved. According to the third technical means, the heat exchanger can be arranged almost perpendicularly to the radial direction of the fan, and the distribution of the inflow velocity at the outer periphery of the fan is made more uniform, so that the flow performance is improved.

[0014]

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a first embodiment of the present invention. A general flow and configuration will be described. When the room air is sucked from the suction port 1 provided in the front cover 4 and the underframe 5, the removable air filter 6 provided along the inner surface of the front cover 4 is removed. Then, the air passes through the folded heat exchanger 7a installed on the front side and the folded heat exchanger 7b installed on the back side, and is sucked into the fan 8. The air is discharged from the outlet 2 through the air passage 3 formed around the fan 8 by the guider 11 and the stabilizer 12. The suction direction (160 ° to 200 °) as viewed from the center of the fan 8 is determined by two independent folded heat exchangers 7 on the front side and the rear side and a long plate 13a connecting the two heat exchangers. ) To surround the whole area. The long plate 13a is inclined to the front side so that the dehumidified water flows to the front side heat exchanger. The space between the heat exchanger 7 and the fan 8 is expanded, and the heater 14 for dehumidification can be easily installed.

FIG. 2 is a cross-sectional view of a second embodiment of the present invention. The general flow and configuration will be described. When the room air is sucked from the suction port 1 provided in the front cover 4 and the underframe 5, the removable air filter 6 provided along the inner surface of the front cover 4 is removed. Then, the heat is passed through the folded heat exchanger 7a provided on the front side and the flat heat exchanger 7c provided on the back side, and is sucked into the fan 8. The air is discharged from the outlet 2 through the air passage 3 formed around the fan 8 by the guider 11 and the stabilizer 12. By two independent folded and flat heat exchangers 7 on the front side and the rear side and a long plate 13a connecting the two heat exchangers, the suction direction (160 °- (200 °). The long plate 13a is inclined to the front side so that the dehumidified water flows to the front side heat exchanger. Heat exchanger 7
And the space between the fan 8 and the heater 8 for dehumidification can be easily installed.

FIG. 3 is a cross-sectional view of a third embodiment of the present invention. The general flow and configuration will be described. When the room air is sucked from the suction port 1 provided in the front cover 4 and the underframe 5, the removable air filter 6 provided along the inner surface of the front cover 4 is removed. Then, the heat is passed through the folded heat exchanger 7a provided on the front side and the flat heat exchanger 7c provided on the back side, and is sucked into the fan 8. The lower part of the folded heat exchanger 7d on the front side is inclined toward the front side to form a "<" shape to promote the suction flow from below. The air is discharged from the outlet 2 through the air passage 3 formed around the fan 8 by the guider 11 and the stabilizer 12. The front and back sides of the fan 8 are viewed from the center of the fan 8 by two independent folded "U" -shaped and flat heat exchangers 7 and a long plate 13a connecting the two heat exchangers. Suction direction (160 °
２００200 °). Long plate 13a
Is inclined to the front side so that the dehumidified water flows to the front side heat exchanger. The space between the heat exchanger 7 and the fan 8 expands,
The heater 14 for dehumidification can be easily installed.

FIG. 4 is a cross-sectional view of a fourth embodiment of the present invention. A general flow and configuration will be described. When the room air is sucked from the suction port 1 provided in the front cover 4 and the underframe 5, the removable air filter 6 provided along the inner surface of the front cover 4 is removed. Then, the heat is passed through the folded heat exchanger 7a provided on the front side and the flat heat exchanger 7c provided on the back side, and is sucked into the fan 8. The air is discharged from the outlet 2 through the air passage 3 formed around the fan 8 by the guider 11 and the stabilizer 12. By two independent folded and flat heat exchangers 7 on the front side and the rear side and a long plate 13b connecting the two heat exchangers, the suction direction (160 °- (200 °). The long plate 13b is bent at the center so as to form a "H" shape so that the dehumidifying water flows to both the front heat exchanger and the rear heat exchanger. The space between the heat exchanger 7 and the fan 8 is more widened at the center, and the heater 14 for dehumidification can be easily installed.

FIG. 5 is a cross-sectional view of a fifth embodiment of the present invention. A general flow and configuration will be described. When the room air is sucked from the suction port 1 provided in the front cover 4 and the underframe 5, the removable air filter 6 provided along the inner surface of the front cover 4 is removed. Then, the air passes through a folded heat exchanger 7a installed on the front side and a flat heat exchanger 7c installed on the back side, and is sucked into the fan 8. The air is discharged from the outlet 2 through the air passage 3 formed around the fan 8 by the guider 11 and the stabilizer 12. The rear-side heat exchanger 7c is placed on and connected to the front-side heat exchanger 7a, and the gap is filled with an impermeable spacer 15. As a result, the suction flow from above can be made smoother, a flow field with less disturbance can be formed, and noise can be reduced. 2 independent 2 on the front side and the back side
The folded and flat heat exchanger 7 is disposed so as to surround the entire area in the suction direction (160 ° to 200 °) when viewed from the center of the fan 8.

[0021]

According to the first embodiment, two folded heat exchangers are used, and in the other examples, a folded heat exchanger and a flat heat exchanger are used. However, since assembly and installation are relatively easy, the cost does not increase.

Further, the space between the two independent heat exchangers and the fan is widened, so that there is room for installing accessories such as a heater. According to the second and fourth embodiments, the space between the heat exchanger and the fan can be expanded to the rear side and the center. That is, the space can be appropriately changed depending on the shape and size of the accessory to be installed.

By enclosing the entire area in the suction direction as viewed from the center of the fan of the cross flow blower with a heat exchanger, the suction flow can be made smooth and a flow field with small turbulence can be formed to reduce noise. Further, the inflow velocity distribution at the fan outer peripheral portion is made uniform, and the flow rate performance is improved. According to the third embodiment, by disposing the lower heat exchanger on the front side substantially perpendicularly to the radial direction of the fan, the lower suction flow is promoted, and the inflow velocity distribution at the outer periphery of the fan is improved. Uniform and flow performance is improved.

[0024]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a second embodiment of the present invention.

FIG. 3 is a cross-sectional view of a third embodiment of the present invention.

FIG. 4 is a cross-sectional view of a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view of a fifth embodiment of the present invention.

FIG. 6 is a cross-sectional view of the prior art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction port 2 Blow-off port 3 Blow path 4 Front cover 5 Underframe 6 Air filter 7 Heat exchanger 8 Fan 9 Wind speed blade 10 Dray pan 11 Rear guider 12 Stabilizer 13 Long plate 14 Heater 15 Spacer

Continuation of the front page (72) Inventor Toshiyuki Imasaka 1006 Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References Japanese Utility Model H5-90213 (JP, U) Japanese Utility Model H4-103512 (JP) , U) Japanese Utility Model 2-13923 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 13/30 F24F 1/00 311

Claims (4)

(57) [Claims] 1. A cross-flow fan comprising a plurality of blades each having a predetermined length arranged in a columnar shape and arranged in a rotational axis direction, a cross flow fan, a stabilizer positioned close to and opposed to the impeller, and a flow path. Rear guide, air filter, suction grille, and two independent
Heat exchanger, and a long plate connecting the two heat exchangers, the heat exchanger and the heat exchanger being separated from each other.
Insert the accessory into the space formed by the
And the cross flow fan of each of the stabilizers
An indoor unit of an air conditioner, wherein the entire area in the suction direction as viewed from the center of the cross flow fan, which is the section of the point of closest approach, is surrounded by the two heat exchangers. Wherein one of the two heat exchangers of the less the
An indoor unit of an even front side folded heat exchanger, the back side that was characterized by being composed of a flat heat exchanger according to claim 1 air conditioner according. 3. The heat exchanger according to claim 1, wherein a lower portion of the folded heat exchanger is inclined forward to form a "U" shape or an inverted "U" shape. Indoor unit of air conditioner. 4. A long plate connecting the two heat exchangers is bent at a central portion to form a "H" shape. Indoor unit of air conditioner.