JP2001041560A - Indoor machine for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor machine for an air conditioner, which is improved in dust collecting property as well as installing and removal properties, by a method wherein a plurality of filters are arranged efficiently. SOLUTION: A fore suction port 18 is formed on a suction grille 6 and an upper suction port 20 is formed on the upper part of a front frame 4 while a pre-filter 28 and an air cleaning filter 30 for purifying air, sucked through the fore suction port 18 and the upper suction port 20, are attached integrally and detachably to the front frame 4. Further, the air cleaning filter 30 is attached detachably to the pre-filter 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for performing a cooling operation or a heating operation, and more particularly, to a structure of an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art In an air conditioner that performs a cooling operation or a heating operation through heat exchange between an indoor unit and an outdoor unit, the size of the air conditioner has been reduced in order to improve the beauty of the indoor or outdoor environment. Especially in the case of indoor units, the current situation is that the main body is made as small as possible to improve the air conditioning capacity.

For this reason, an indoor heat exchanger, an indoor blower, a wind direction changing blade, and the like are disposed by utilizing a limited space inside the indoor unit main body, and the indoor heat exchanger occupying a considerable space inside the main body. As for the exchanger, not only the straight type but also ones folded in two or three have been proposed, and various studies have been made on the internal structure of the indoor unit.

[0004]

However, the layout of the front frame constituting the frame of the indoor unit, the suction grille pivotally mounted on the front frame, or the filter detachably mounted on the front frame is described below. There was still room for consideration.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and provides an air conditioner indoor unit having improved dust absorption and detachability by arranging a plurality of filters efficiently. It is intended to provide.

[0006]

In order to achieve the above object, according to the present invention, a cooling operation or a heating operation is performed through heat exchange between an indoor unit and an outdoor unit. In the air conditioner, the indoor unit includes a frame mounted on a wall surface of a living space, a front frame mounted on the frame, and a suction grill pivotally mounted on the front frame. A filter device for purifying air taken in through a front suction port formed in the suction grille and an upper suction port formed above the front frame; and each of the filter devices is provided with a filter frame. And two filters made of a filter material supported by the filter frame. The two filters are integrally and detachably attached to the front frame, and the other filter is detachably attached to one of the two filters. To And characterized in that the Attach.

According to a second aspect of the present invention, one of the two filters extends rearward of the front suction port and below the upper suction port, and the other of the two filters moves forward of the front filter. It is characterized in that it extends behind the part suction port.

Further, the invention according to claim 3 is characterized in that one mesh of the two filter materials is smaller than the other mesh.

The invention according to claim 4 is characterized in that a deodorizing filter is detachably attached to the front frame at a position where at least a part of the filter overlaps with the two filters.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In the air conditioner, a cooling operation or a heating operation is performed through heat exchange between the outdoor unit and the indoor unit. The outdoor unit includes a compressor for compressing a refrigerant and a four-way valve for switching between the cooling operation and the heating operation. , An outdoor heat exchanger, and an expansion valve, while the indoor unit includes an indoor heat exchanger and an indoor blower.

As shown in FIG. 1, an indoor unit C includes a frame 2 attached to a wall of a living space, a front frame 4 mounted on the frame 2, and a suction grille pivotally mounted on the front frame 4. 6 is provided. At the lower part of the front frame 4, an air outlet 8 for sending out the temperature-controlled air to the living space is formed,
The outlet angle of the temperature-controlled air (wind direction)
, 10 for changing the wind direction are provided.

As shown in FIG. 2, inside the indoor unit C, a main heat exchanger 12, a sub heat exchanger 14, an indoor blower 16
The suction grill 6 has a front suction port 18.
Are formed, and an upper suction port 20 is formed in the upper part of the front frame 4.

The upper edge of the lower portion of the intake grille lower inclined portion 22 formed above the outlet 8 is curved upward, and the front inlet 18 is also curved upward as a whole.

Therefore, as shown in FIGS. 3 and 4, the height (h1) at the center of the suction grille lower inclined portion 22 is set to be larger (h1> h2) than the height (h2) at both ends. On the other hand, the front suction port 18 is set such that the height (H2) at both ends is larger than the height (H1) at the center (H2> H1).

In the above configuration, during cooling or heating operation, the front and upper suction ports 18, 2 are provided by the indoor blower 16.
The room air sucked in through the heat exchanger 0 exchanges heat with the refrigerant passing through the main heat exchanger 12 and the sub heat exchanger 14, and is sent out from the outlet 8 into the room.

Here, the height of the front suction port 18 is fixed (H
When 1 = H2), since the intake air volume at both ends is smaller than that at the center, the blowing speed from the outlet 8 becomes uneven, and the blowing speed at both ends is lower than the blowing speed at the center. Become.

However, if the height (H2) at both ends of the front suction port 18 is set to be larger than the height (H1) at the center, the suction area at both ends increases, and the blowing speed from the outlet 8 increases. Becomes almost uniform.

Since the height (h1) at the center of the lower portion of the intake grille lower portion 22 is set to be larger than the height (h2) at both ends, the wind direction changing blades 10,...
When 10 is set substantially horizontally or slightly upward, there is almost no interference between the air blown out from the center of the outlet 8 and the air sucked into the front inlet 18 which greatly contributes to the upward performance of the wind direction.

As shown in FIG. 2, the main heat exchanger 12 is divided into three parts, the first surface 12a and the second surface 12b are bent in an inverted V-shape, and the second surface 12b and the second The three surfaces 12c are bent in the shape of a "ku", and the sub heat exchanger 1
4 is attached to the front side of the second surface 12b of the main heat exchanger 12.

As shown in FIGS. 2, 5 and 6, on the front frame 4 behind the suction grille 6 and below the upper suction port 20, a first filter 24 is detachable in a curved state. And a second filter 26 is detachably attached to the front frame 4 in front of the sub heat exchanger 14 behind the curved portion of the first filter 24. The two filters 26 constitute a filter device.

The first filter 24 includes a pre-filter 28 for removing dust, dirt, and the like, and an air cleaning filter 30 for removing small dust that cannot be removed by the pre-filter 28. Consists of a deodorizing filter for removing odors.

The rectangular filter frame 28a of the pre-filter 28
, A mesh filter 28b, which is a filter material, is stretched and supported over the entire surface, and a plurality of fasteners 28c,.
28c are integrally formed. This fastener 28c,
, 28c, a rectangular filter frame 30a of the air purifying filter 30 is detachably attached. The filter frame 30a is made of a filter material and has a mesh smaller than the mesh filter 28b of the pre-filter 28. 30b is stretched and supported over the entire surface.
The air purifying filter 30 has a size that is about half the size of the pre-filter 28 and is locked so as to overlap (overlap) with the lower half of the pre-filter 28. The area is provided at a position where the area overlaps with the pre-filter 28 and the air cleaning filter 30.

The first and second filters 24, 24
When the intake grille 26 is attached to the indoor unit C, the lower portion of the intake grille 6 is pulled toward the user, and the second filter 26 is first attached to the front frame 4 in front of the sub heat exchanger 14 with the intake grille 6 opened.
Is attached to the mounting portion 32 formed by sliding upward from obliquely below. Next, in a state where the air cleaning filter 30 is attached to the fasteners 28c,..., 28c formed on the filter frame 28a of the pre-filter 28, the mounting portion 34 formed from the front to the upper portion of the front frame 4 is attached from below. Slide upward to attach.

The removal of the first filter 24 is performed by pulling the convex portion formed at the lower portion of the first filter 24 downward with the suction grill 6 opened, and the second filter 24 is removed.
The removal of the filter 26 is performed by pulling the projection formed at the lower part of the second filter 26 obliquely downward with the first filter 24 removed. Further, the separation of the pre-filter 28 and the air cleaning filter 30 integrally attached is performed by a plurality of fasteners 28c,..., 28c formed on the filter frame 28a of the pre-filter 28.
This can be easily performed by releasing the lock of the filter frame 30a of the air purification filter 30 due to the above.

[0025]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the present invention, two filters for purifying air sucked through the front suction port and the upper suction port are integrally and detachably attached to the front frame, and Since the other filter is detachably attached to one of the two filters together with the filter frame, attachment and detachment is easy, and since each filter is supported by the frame, there is no uneven attachment of the filter material. In addition, dust and dirt in the air can be efficiently removed, and the two filters can be integrally attached to or detached from the front frame, so that dust absorption and detachability are improved.

According to the second aspect of the present invention, one of the two filters extends behind the front suction port and below the upper suction port, and the other filter extends behind the front suction port. , It is possible to efficiently purify air sucked from the front suction port having a large suction air amount.

Further, according to the third aspect of the present invention,
Since the other mesh is smaller than one of the two filter materials, it is possible to efficiently remove dust and dust in the air with one filter and remove small dust that cannot be removed with this filter with the other filter. it can.

According to the fourth aspect of the present invention, since the deodorizing filter is further detachably attached to the front frame, dust in the air and air after the removal of the dust pass therethrough, and an unpleasant odor for a long period of time. Can also be removed.

[Brief description of the drawings]

FIG. 1 is a perspective view of an indoor unit of an air conditioner according to the present invention.

FIG. 2 is a longitudinal sectional view near an end of the indoor unit of FIG.

FIG. 3 is a sectional view of the suction grille taken along line III-III in FIG. 1;

FIG. 4 is a cross-sectional view of the suction grille taken along line IV-IV in FIG.

FIG. 5 is a perspective view of the indoor unit of FIG. 1 with a suction grill removed.

FIG. 6 is a rear view of the pre-filter and the air purification filter integrally attached to the indoor unit of FIG. 1.

[Explanation of symbols]

 2 underframe 4 front frame 6 suction grille 8 air outlet 10 wind direction changing blade 12 main heat exchanger 14 sub-heat exchanger 16 indoor blower 18 front suction port 20 upper suction port 22 suction grille lower inclined part 24 first filter 26 Second filter 28 Pre-filter 30 Air cleaning filter 32, 34 Mounting part C Indoor unit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akemi Kimura 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 3L051 BA02 BB05 BC05

Claims (4)

[Claims] An air conditioner configured to perform a cooling operation or a heating operation through heat exchange between an indoor unit and an outdoor unit, wherein the indoor unit is mounted on a wall surface of a living space; A front frame attached to the underframe; a suction grille pivotally attached to the front frame; a front suction port formed in the suction grille and an upper suction port formed above the front frame. A filter device for purifying air taken in through the filter, the filter device comprising a filter frame and two filters each made of a filter material supported by the filter frame, and integrating the two filters. An indoor unit for an air conditioner, characterized in that the two filters are removably attached to the front frame and the other of the two filters is removably attached. 2. One of the two filters extends behind the front suction port and below the upper suction port, and the other of the two filters extends behind the front suction port. The indoor unit of the air conditioner according to claim 1. 3. The filter material according to claim 1, wherein one mesh of the two filter materials is smaller than the other mesh.
An indoor unit of the air conditioner according to item 1. 4. A filter according to claim 1, wherein a deodorizing filter is detachably mounted on the front frame at a position where at least a part of the filter overlaps the two filters.
Item 6. An indoor unit of the air conditioner according to Item.