JPH09145147A - Air supply circuit of separate air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a logical layout of an air conditioner set up in a corner of a living room and eliminate temperature unevenness in indoor air conditioned temperatures and enhance comfortability by providing an air guide, a centrifugal fan and a disk-shaped heat exchanger on the lee side of a front grille one by another in an indoor heat exchanger which is in trapezoidal shape like a fan. SOLUTION: An indoor air conditioner mounted in close contact with a corner between two walls and a ceiling of a living room, is provided with an air inlet in the lower part and an air outlet 6a in an disk-shaped area, thereby forming a quarter-arc and trapezoidal shape like a fan. When a centrifugal fan 2 is feeding air, the fan 2 sucks up the air from a grille 4, which is a lower air inlet, thereby blowing the air conditioned air indoors widely from an arc- shaped air outlet 6a passing by the centrifugal fan 2 enveloped with the air guide 8 and a scroll casing 5 and the arc-shaped heat exchanger 3. An arc- shaped and cross section-substantially oval-shaped wind direction changing device 6 is provided on the arc-shaped air outlet 6a. This construction makes it possible to separate vertically the flow of air blown out from the air outlet 6a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an indoor blower circuit of a separate type air conditioner of a heat pump for cooling and heating.

[0002]

2. Description of the Related Art As shown in FIG. 7, an indoor unit of a conventional separate type air conditioner is attached to a wall in a living room in a protruding manner. The configuration is, in order from the windward side, the front grill 4, the heat exchanger 3, the casing 21, and the stabilizer 2.
It consisted of a cross-flow fan 2 surrounded by 0 and a vertical wind direction changing device 6. By rotating the cross-flow blower 2 with a motor, a blowing action is generated, and air flows through the air in the above-described order as indicated by the arrows to perform cooling / heating and dehumidification.

[0003]

However, since the indoor unit of the separate type air conditioner having the above-described structure is installed in a shape protruding on the wall of the living room, it gives a feeling of pressure to the living room and is integrated with the interior. Is limited. Further, since it is installed on one wall, even if the wind direction changing device is used, the air-conditioning temperature distribution in the living room becomes uneven and there is a problem in terms of comfort.

[0004]

In order to solve the above-mentioned problems, in order to solve the above-mentioned problems, it is attached in close contact with the ceiling of the living room and the corners of the walls on two sides, has a suction port below, and has a blow-out port in the arc portion. It has a quarter-circle fan-shaped trapezoidal indoor side ventilation circuit, and a front grill that is a suction port is provided below.
Provide an indoor air blower circuit for a separate type air conditioner that has an air guider, a centrifugal blower surrounded by a scroll casing, an arc heat exchanger in the radial direction of the centrifugal blower, and an arc blow outlet in the downstream order. To do.

Further, the scroll casing of the centrifugal blower is formed in a basic shape with a spiral having a Zetsu part.

In addition, an air flow direction changing device having an arc shape and a substantially elliptical cross section is provided at the arc-shaped air outlet so as to vertically and horizontally blow the air flow.

Further, an internal connecting pipe from the indoor heat exchanger is provided at one corner between the air guider and the front grill.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
It is attached to the ceiling of the living room and the corners of the two walls, has a suction port in the lower part, and has a fan-shaped trapezoidal indoor side ventilation circuit with a blowout port in the arc part. is there. When the centrifugal blower is rotating and blowing air,
Inhale air from the front grill, which is the suction port,
Air flows to the air guider, a centrifugal blower surrounded by a scroll casing, an arc-shaped heat exchanger in the radial direction of the centrifugal blower, and an arc-shaped blowout port in that order in the downstream. In this way, since it is installed in the corner of the living room, there is no feeling of pressure and the fusion with the interior is better. Also,
Since it blows out at a wide angle from the 1/4 arc-shaped outlet, there is no temperature unevenness in indoor air conditioning, and comfort is better.

Further, the scroll casing of the centrifugal blower is formed in a basic shape with a spiral having a Zetsu part,
It is possible to provide a more efficient indoor blower circuit with less noise.

Further, at the arc-shaped outlet, an air-direction changing device having an arc shape and a substantially elliptical cross section is provided for vertically and horizontally blowing the blowout flow. With this, by simply moving the wind direction changing device up and down, the blowout flow can be controlled to be blown downward, upward and downward, and can be controlled in the horizontal direction, so that the air-conditioning temperature distribution in the living room is uniform and the comfort level is improved.

Further, an internal connection pipe from the indoor heat exchanger is provided at one corner between the air guider and the front grill. As a result, the internal connection piping does not affect the blower circuit, can be efficiently housed, and the indoor unit can be made compact, and is more compatible with the interior of the living room.

[0012]

【Example】

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3.

FIG. 1 is a perspective view of an indoor unit of a separate type air conditioner according to the present invention installed in a living room.

FIG. 2 is a plan view of FIG. 1 viewed from the direction A. FIG. 3 is a BB sectional view thereof.

A quarter-arc fan-shaped trapezoidal room which is attached in close contact with the ceiling of the living room and the corners of the two walls, has a suction port below, and has a discharge port 6a in the arc portion. The inside air conditioner 1. When the centrifugal blower 2 is rotating and blowing air, air is sucked downward from the front grill 4 which is a suction port, and a centrifugal blower surrounded by an air guider 8 and a scroll casing 5 is provided downstream thereof in order.
Air flows in the arc-shaped heat exchanger 3 and the arc-shaped outlet 6a in the radial direction of the centrifugal impeller 2 and acts as a blower. In this way, since it is installed in the corner of the living room, there is no feeling of pressure and the fusion with the interior is better. Since it blows out at a wide angle from the quarter-arc outlet 6a,
There is no temperature unevenness in indoor air conditioning, and comfort is better.

(Second Embodiment) A second embodiment of the present invention will be described with reference to FIG.

Scroll casing 5 of centrifugal impeller 2
By forming the spiral having the zest part 10 into a basic shape, it is possible to provide an indoor air blowing circuit with higher air blowing efficiency and lower noise when rotating in the direction of the arrow of the centrifugal impeller 2 and performing air blowing action. The centrifugal impeller 2 may be composed of a backward fan or a sirocco fan.

(Embodiment 3) In addition, FIG.
This will be described with reference to (a), (b) and (c).

An air flow direction changing device 6 having an arc shape and a substantially elliptical cross section is provided at the arc-shaped air outlet 6a for vertically and horizontally blowing the air flow. With this, when the wind direction changing device is moved up and down, the blowout flow can be blown downward by setting the wind direction changing device 6 to the upper position as shown in FIG. Further, as shown in FIG. 5- (b), if the airflow direction changing device 6 is located at an intermediate position of the air outlet 6a, upper and lower air blow can be performed separately. In addition, horizontal blowing can be performed by setting the wind direction changing device 6 to the lower position. In this way, the blowout flow can be controlled, the air-conditioning temperature distribution in the living room becomes uniform, and the comfort level is improved.

(Fourth Embodiment) A fourth embodiment will be described with reference to FIG.

An internal connecting pipe 9 from the indoor heat exchanger 3 is provided between the air guider 8 and the front grill 4 and is arranged at one corner of the indoor unit. As a result, the internal connection pipe 9 does not affect the air flowing through the blower circuit and is efficiently housed, so that the indoor unit can be made compact, and as a result, it is excellent in fusion with the interior of the living room.

[0022]

As is apparent from the above description, it is attached in close contact with the ceiling of the living room and the corners of the two walls,
It is a fan-shaped indoor side blower circuit having a quarter arc having a suction port below and a blowout port in a circular arc portion. When the centrifugal blower is rotating and blowing air, it inhales air downward from the front grille, which is a suction port, and in the downstream thereof, an air guider, a centrifugal blower surrounded by a scroll casing, and a radial direction of the centrifugal blower. Air flows to the arc-shaped heat exchanger and the arc-shaped outlet. In this way, because it is installed in the corner of the living room, there is no sense of pressure,
The fusion with the interior is better. Further, since the air is blown out at a wide angle from the one-quarter arc-shaped outlet, there is no temperature unevenness in the indoor air conditioning and the comfort is better.

Further, the scroll casing of the centrifugal blower is formed in a basic shape with a spiral having a Zetsu part,
It is possible to provide a low-noise indoor ventilation circuit with higher ventilation efficiency.

Further, the arc-shaped blow-out port is provided with an arc-shaped air-direction changing device having a substantially elliptical cross section, which blows the blow-off flow horizontally and vertically. With this, by simply moving the wind direction changing device up and down, the blowout flow can be controlled to be blown downward, upward and downward, and can be controlled in the horizontal direction, so that the air-conditioning temperature distribution in the living room is uniform and the comfort level is improved.

Further, an internal connection pipe from the indoor heat exchanger is provided at one corner between the air guider and the front grill. As a result, the internal connection piping does not affect the blower circuit, can be efficiently housed, and the indoor unit can be made compact, and is more compatible with the interior of the living room.

[Brief description of the drawings]

FIG. 1 is a perspective view of a separate type air conditioner according to an embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment of the present invention viewed from the direction A.

FIG. 3 is a BB sectional view of the first embodiment of the present invention.

FIG. 4 is an exploded plan view of the second embodiment of the present invention.

5A is a detailed view of a C portion of a third embodiment of the present invention, FIG. 5B is a detailed view thereof, and FIG. 5C is a detailed view thereof.

FIG. 6 is a sectional view of a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a conventional separate type air conditioner.

FIG. 8 is a BB sectional view of a conventional separate type air conditioner.

[Explanation of symbols]

 1 Separate type air conditioner 2 Centrifugal impeller 3 Arc heat exchanger 4 Front grille 5 Scroll casing 6 Wind direction changing device 6a Blowout port 7 Water pan 8 Air guider 9 Motor 10 Zetsu part

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hirosumi Ito 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Yutaka Murakami, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. A quarter-arc fan-shaped trapezoidal shape which is attached in close contact with the ceiling of a living room and the corners of two walls, has a suction port in the lower part, and has a blowout port in a circular arc portion. In the indoor blower circuit, a front grill that is the suction port is provided below, and an air guider, a centrifugal blower surrounded by a scroll casing, and a circular arc shape in the radial direction of the centrifugal blower are provided on the leeward side of the front grill in order. A heat exchanger,
A blower circuit for a separate type air conditioner configured to have the arc-shaped outlet. 2. A blower circuit for a separate type air conditioner according to claim 1, wherein the scroll casing of the centrifugal blower is formed with a spiral having a zeph portion in a basic shape. 3. The air blower for a separate type air conditioner according to claim 1, wherein the arc-shaped blow-out port is provided with an arc-shaped air-direction changing device having a substantially elliptical cross-section for vertically and horizontally blowing the blow-off flow. circuit. 4. A blower circuit for a separate type air conditioner according to claim 1, wherein an internal connection pipe from the indoor heat exchanger is provided at one corner between the air guider and the front grill.