JPH1026399A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost by reducing the number of parts and the assembly man-hour. SOLUTION: Since an upper part of a wind shielding plate 11 is extended, and an upper corner folding part 8b of an inverse V-shaped upper heat exchanger 8a opposite to the wind shielding plate is covered by an extended part 11a, an air filter is prevented from being caught in the upper corner folded part of the upper heat exchanger and a filter net of the air filter is prevented from being damaged by guiding the air filter by the extended part when an air filter 7 is attached/detached. Further, since a conventional filter guide is integrated with the air shielding plate, an indoor unit of an air conditioner wherein the number of parts and he assembly man-hour can be reduced, and the cost is also reduced can be provided.

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 an air conditioner, and more particularly, to an indoor unit having a structure that can be used for both heat exchangers, to easily attach and detach an air filter and to reduce the number of parts. About what you did.

[0002]

2. Description of the Related Art As shown in FIG. 1, a housing 1 of an indoor unit of an air conditioner conventionally comprises a main body 2 and a front cover 3 detachably attached to the main body 2. The front panel 3a of the front cover 3 is pivotally supported at the upper part so as to be freely opened and closed. Suction ports 4a and 4b for taking in room air are provided in an upper portion of the front cover 3, and an outlet 5 for sending out the heat-exchanged conditioned air into the room is formed in a lower portion of the front surface. . Further, as shown in FIG. 5, an air filter 6 provided detachably near the suction ports 4a and 4b in an air passage 6 connecting the suction ports 4a and 4b and the air outlet 5, and the front cover 3 V-shaped heat exchanger 80 divided and formed so as to face each other and the main body 2 side
And a blower (cross flow fan) 9 and the like arranged below the heat exchanger 80. Further, the air outlet 5 is provided with a wind direction plate 10 for adjusting the wind direction. The heat-exchanged conditioned air is blown by a blower 9, the direction of the wind is adjusted by a wind direction plate 10, and the conditioned air is sent indoors. In the indoor unit of the air conditioner having such a configuration, the upper corner of the heat exchanger 80 divided into the inverted V-shape is cut so that a gap with the air filter 7 is increased, and the air filter 7 is formed.
At the time of attachment and detachment, the filter net of the air filter 7 is prevented from hitting the upper corner of the heat exchanger 80 and being damaged. However, in the current trend of miniaturization and cost competition, cutting the upper corner of the heat exchanger 80 requires a special type of mold, which causes an increase in cost. In addition, there is a problem that the gap between the heat exchanger 80 and the air filter 7 must be large, so that the size of the heat exchanger 80 is increased, and the flow reverses to the flow of miniaturization. Therefore, the upper corner of the heat exchanger 80 is bent to achieve downsizing. Further, a filter guide 17 for guiding the air filter 7 is provided in the divided portion 81 of the heat exchanger 80. 1
7 is fixed to the heat transfer tube 82 of the heat exchanger 80 so that the air filter 7 does not hit the upper corner bent portion 83 of the heat exchanger 80 and is damaged, so that the heat exchanger 80
The one in which the gap between the filter and the air filter 7 is shortened has been put to practical use. Now, the capacity of an air conditioner is mainly determined by the size of the heat exchanger and the air volume of the blower, and the air volume of the blower is changed by the number of rotations of the motor, and the size of the heat exchanger is determined by the size of the housing. It is determined. However, in order to prepare housings large and small according to their capabilities, separate molds are required, and the cost of each component is high, so that it is not possible to reduce the cost. Therefore, as shown in FIG.
The heat exchanger 80b shown in FIG. 4 arranged on the main body 2 side is replaced with a wind shield plate 11 to reduce the capacity of the heat exchanger, and the heat exchanger 80b shown in FIG. I have.
However, in this manner, even in the indoor unit of the low-cost air conditioner in which the capacity is reduced by replacing the heat exchanger 80b with the wind shield plate 11, the filter guide 17 for guiding the air filter 7 and the wind shield The plate 11 is made up of separate parts, and there is a problem that the cost is squeezed due to the number of parts, the number of assembly steps, and the like.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide an air conditioner indoor unit in which the number of parts and the number of assembling steps are reduced to reduce the cost.

[0004]

According to the present invention, at least a detachable air filter is provided in an air passage connecting an inlet at an upper portion of a housing and an outlet at a lower portion of the housing. A heat exchanger comprising a first heat exchange part of a first heat exchange part and a second heat exchange part arranged in a substantially inverted V-shape with the upper part facing the front surface and the rear surface of the air passage, respectively, A windshield plate exchanged and arranged also as the second heat exchange unit, a filter guide arranged above the heat exchanger and guiding the air filter, and a blower that sends out the heat-exchanged conditioned air. In the indoor unit of the provided air conditioner, an extension is provided to extend above the wind shield plate, and the extension has the function of the filter guide. Further, the extension of the wind shield plate is bent so as to correspond to the corner shape of the heat exchanger. In addition, an arc-shaped rib is provided on the upper surface of the extending portion of the wind shield plate so as to guide the air filter reliably. In addition, a locking claw that locks to the refrigerant pipe of the heat exchanger is provided at the end of the extending portion of the wind shield plate to prevent the extending portion from lifting up to the air filter side.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS With the above construction, in the indoor unit of the air conditioner of the present invention, the upper part of the windshield is extended, and the extended portion is opposed to the windshield so as to have an inverted V. The filter guide covers the upper corners of the heat exchangers that are arranged and formed in the shape of a letter, so that the air filter can be prevented from hitting the bent part and damaged, and the filter guide is formed integrally with the wind shield to reduce the number of parts. Can be reduced.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an indoor unit of an air conditioner according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing the appearance of an indoor unit of an air conditioner, FIG. 2 is a sectional side view of a main part showing an embodiment of the indoor unit of an air conditioner according to the present invention, and FIG. It is. As shown in the figure, a housing 1 includes a main body 2 and a front cover 3 detachably mounted on the main body 2, and a front panel 3a of the front cover 3 is pivotally supported at an upper portion so as to be openable and closable. In addition, suction ports 4a and 4b for room air are provided in an upper portion of the front cover 3, and an outlet 5 is formed in a lower portion of the front surface. An air passage 6 is formed between the inlets 4a, 4b and the outlet 5, and is detachable in the air passage 6 so that the air passage 6 can be moved toward the main body 2 along the inner surface of the front cover 3. An air filter 7 and a heat exchanger 8 and a blower (cross flow fan) 9 which are divided into upper and lower portions in a U-shape are arranged, and the heat-exchanged air is sent to the outlet 5 by the blower 9 to enter the room. Is adjusted by a wind direction plate 10.

The upper heat exchanger 8 of the heat exchanger 8
a is formed by bending the upper corner thereof to form a bent portion 8b. The upper heat exchanger 8a is opposed to the upper heat exchanger 8a at the rear body 2 side by facing the upper heat exchanger 8a and inverting the upper portion. A V-shaped wind shield 11 is arranged. Further, the housing 1 and the like can be used for an indoor unit of an air conditioner having a larger capacity by replacing the wind shield plate 11 with a heat exchanger.

An extension 11a is formed above the wind shield plate 11 so as to cover the upper corner bent portion 8b of the upper heat exchanger 8a. 7 is prevented from being damaged by hitting the bent portion 8b. Further, a plurality of arc-shaped ribs 11b are formed on the upper surface of the wind shield plate 11, and have a function as a reliable guide when the air filter 7 is attached and detached. Further, a locking claw 11c is formed at the end of the extending portion 11a of the wind shield plate 11, and the locking claw 11c is locked to the heat transfer tube 8c of the upper heat exchanger 8a. Of the air filter 7 is securely fixed to the upper heat exchanger 8a so as not to hinder the attachment and detachment of the air filter 7.

[0009]

As described above, according to the indoor unit of the air conditioner according to the present invention, the heat exchanger extends upward from the windshield and faces the windshield to form an inverted V-shape. Since the upper corner bent portion is covered, the air filter is hooked on the upper corner bent portion of the heat exchanger by the extension portion guiding the air filter when the air filter is attached or detached. Since the filter net is prevented from being damaged and the conventional filter guide is formed integrally with the wind shield plate, it is possible to provide an indoor unit of an air conditioner in which the number of parts and the number of assembling steps are reduced to reduce costs. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of an air conditioner.

FIG. 2 is a side sectional view showing a main part of one embodiment of the indoor unit of the air conditioner according to the present invention.

FIG. 3 is an enlarged side sectional view showing a main part of an embodiment of the indoor unit of the air conditioner according to the present invention.

FIG. 4 is a side sectional view showing a main part of an indoor unit of a conventional air conditioner.

FIG. 5 is a side sectional view showing a main part of another example of the indoor unit of the conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Main body 3 Front panel 3a Front panel 4a, 4b Inlet 5 Outlet 6 Air passage 7 Air filter 8 Heat exchanger 8a Upper heat exchanger 8b Bend part 8c Heat transfer tube 9 Blower (cross flow fan) 10 Wind direction Plate 11 Wind shield 11a Extension 11b Arc-shaped rib 11c Locking claw

Claims (4)

[Claims] At least a detachable air filter is fitted to an air passage connecting an intake port at an upper portion of a housing and an air outlet at a lower portion of the housing, and the upper portion is opposed to a front surface and a back surface of the air passage, respectively. The first is arranged in a substantially inverted V-shape.
A heat exchanger consisting of a first heat exchange part of the heat exchange part and the second heat exchange part, a wind shield plate exchanged and arranged also as the second heat exchange part, and arranged above the heat exchanger In an indoor unit of an air conditioner comprising a filter guide for guiding the air filter, and a blower for delivering heat-exchanged conditioned air, an extending portion extending to an upper portion of the wind shield plate is provided. An indoor unit for an air conditioner, wherein the extension portion has the function of the filter guide. 2. The indoor unit for an air conditioner according to claim 1, wherein the extension is bent in accordance with a corner shape of the heat exchanger. 3. The indoor unit of an air conditioner according to claim 1, wherein an arc-shaped rib for guiding the air filter is provided on an upper surface of the extension. 4. The indoor unit for an air conditioner according to claim 1, wherein a locking claw for locking to a heat transfer tube of the heat exchanger is provided at a tip of the extension.