JPH06272904A - Outdoor device of air conditioner - Google Patents

Abstract

PURPOSE:To prevent an amount of air passing through a heat exchanger from being decreased by a method wherein an air discharging port is formed from a front surface of a device easing toward an upper surface and a bell mouth for an axial flow blower is formed into a shape assisting a flow of air directed toward the upper surface. CONSTITUTION:An air discharging port 20 is formed from a front surface 1c to an upper surface 1e of a device easing 1. The air discharging port 20 is provided with an air blowing grill 21. The air blowing grill 21 is formed to be curved from its front surface toward the upper surface. A bell mouth 22 for an axial flow blower 10 is formed to have a shape for assisting a flow of air flowing upwardly, i.e., an upper part of the bell mouth 22 is expanded at a large angle and a clearance is formed between its extremity end and the blowing grill 21. With such an arrangement as above, even if there is an obstacle such as wall placed near and in front of the outdoor device, air passed through the heat exchanger 9 is guided into the bell mouth 22 and further blown from the air discharging port 20 not only forwardly but also upwardly, resulting in that a reduction in capacity of an air condition can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit for an air conditioner.

[0002]

2. Description of the Related Art An example of an outdoor unit of a conventional air conditioner is shown in FIG. The inside of the housing 1 of the outdoor unit is partitioned into a left side and a right side by a partition plate 2, and a compressor room 3 is formed on one side and a heat exchanger room 4 is formed on the other side.

A compressor 5, a controller 6, an accumulator 7, a muffler 8 and the like are arranged in the compressor chamber 3, and a flat plate heat exchanger 9, an axial blower 10 and the like are arranged in the heat exchanger chamber 4. It is arranged.

The heat exchanger 9 is erected so as to face an air intake 11 formed on the back surface 1a of the housing 1, and the axial blower 10 is an exhaust formed on the front surface 1c of the housing 1. It is installed so that it faces the mouth 13.

When the axial blower 10 is rotationally driven by the motor 14, the outside air is drawn into the heat exchanger chamber 4 from the air intake 11 and is heated by exchanging heat with the refrigerant in the process of passing through the heat exchanger 9. After being heated or cooled, it is urged by the axial blower 10 and blown forward from the exhaust port 13. A unit mounting leg 15 is fixed to the four corners of the bottom surface of the bottom plate 1d of the housing 1.

[0006]

In the above-mentioned conventional outdoor unit, since the air that has passed through the heat exchanger 9 is blown out forward from the exhaust port 13, the wall is placed in front of the outdoor unit and close to it. When there is such an obstacle, the air resistance increases, so that the amount of air flowing through the heat exchanger 9 decreases and the capacity of the air conditioner decreases.

[0007]

The present invention has been invented in order to solve the above-mentioned problems, and its gist is that a heat exchanger installed on the rear side of the inside of a casing is passed through. In the outdoor unit of the air conditioner in which the air is urged by the axial blower and blows out from the exhaust port, the exhaust port is formed from the front surface to the upper surface of the device casing, and the bell mouth for the axial blower is described above. The outdoor unit of the air conditioner is characterized in that it is formed in a shape that promotes the flow of air toward the upper surface.

A blowout grill having a large number of blowout louvers horizontally extending vertically at a predetermined interval is installed at the exhaust port, and the blowout louver is formed into a curved surface from the front surface to the upper surface thereof, and the blowout louver is formed into the curved surface. It can be provided so as to be oriented in a direction orthogonal to the above.

[0009]

In the present invention, since it has the above-mentioned structure, the air flowing through the heat exchanger is urged by the axial blower and guided by the bell mouth, not only in the front direction but also in the upper direction from the exhaust port. Blown out.

An air outlet grill having a large number of air outlet louvers horizontally extending vertically at a predetermined interval is installed at the exhaust port. The air outlet grill is formed into a curved surface from the front surface to the upper surface, and the air outlet louver is formed into the curved surface. If it is provided so as to be oriented in a direction orthogonal to the air, the air blown from the exhaust port is guided not only by the blowing louver of the blowing grill but also by the blowing louver of the forward direction.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIG. An exhaust port 20 is formed from the front surface 1c to the upper surface 1e of the device casing 1. A blowout grill 21 is installed at the exhaust port 20, and the blowout grill 21 is formed into a curved surface from the front surface to the top surface thereof. The blowout grill 21 has a large number of blowout louvers 21a extending vertically at predetermined intervals, and the plurality of blowout louvers 21a are formed so as to be oriented in a direction orthogonal to a curved surface.

The bell mouth 22 for the axial blower 10 has a shape that promotes the air flow toward the upper surface, that is, the upper portion of the bell mouth 22 widens at a large angle θ, and its tip and the blowing grill 21.
A gap δ is formed between and. Other configurations are similar to those of the conventional one shown in FIG. 2, and corresponding members are designated by the same reference numerals.

However, when there is a wall 30 in front of and close to the outdoor unit, the air whose temperature has been raised or lowered by passing through the heat exchanger 9 is urged by the axial blower 10 to be exhausted. It is blown out from 20, but part of it passes through the gap δ between the upper tip of the bell mouth 22 and the blowout grill 21,
The blowout louver 21a of the blowout grill 21 guides and blows out upward.

[0014]

In the present invention, since the exhaust port is formed from the front surface to the upper surface of the casing and the bell mouth for the axial blower is formed in a shape that promotes the air flow toward the upper surface, it is provided in front of the outdoor unit. Even if there is an obstacle such as a wall in the vicinity, the air that has passed through the heat exchanger is guided by the bell mouth and blown not only forward but also upward from the exhaust port. Therefore, it is possible to suppress an increase in the air flow resistance, so that it is possible to prevent a decrease in the amount of air flowing through the heat exchanger and prevent a decrease in the performance of the air conditioner.

A blowout grill having a large number of blowout louvers horizontally extending vertically at a predetermined interval is installed in the exhaust port, and the blowout louver is formed into a curved surface from the front surface to the upper surface thereof, and the blowout louver with respect to the curved surface. If they are provided so as to be oriented in a direction orthogonal to each other, the air can be smoothly blown not only forward but also upward by being guided by the blowing louver of the blowing grill.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, (A) is an external perspective view,
(B) is a sectional view taken along the line BB of (A).

FIG. 2 shows a schematic configuration of a conventional outdoor unit, where (A) is a partially cutaway front view, (B) is a vertical sectional elevation view, and (C).
Is a cross-sectional plan view.

[Explanation of symbols]

 1 Cabinet 9 Heat exchanger 10 Axial blower 20 Exhaust port 22 Bell mouth 21 Blowout grill

Continuation of the front page (72) Inventor Takashi Goto 3-1, Asahimachi, Nishibiwajima-cho, Nishikasugai-gun, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Air Conditioning Factory

Claims (2)

[Claims] 1. An outdoor unit of an air conditioner in which air flowing through a heat exchanger installed on the inner rear side of an equipment casing is urged by an axial blower and blown out from the exhaust port, An outdoor unit for an air conditioner, characterized in that the bell mouth for the axial blower is formed in a shape that promotes a flow of air toward the upper surface while being formed from the front surface to the upper surface of the device casing. 2. An outlet grill having a plurality of outlet louvers horizontally extending vertically at a predetermined interval is installed at the exhaust port, the outlet grill is formed into a curved surface from the front surface to the upper surface, and the outlet louver is formed as described above. An outdoor unit for an air conditioner, which is provided so as to be oriented in a direction orthogonal to a curved surface.