JPH06241501A - Outdoor unit for air conditioner - Google Patents

Abstract

PURPOSE:To prevent stop of operation of an air conditioner due to lowering of capacity of an outdoor unit or abnormal rising of high pressure within a refrigerant circuit by bending an end of a heat exchanger forwardly and providing an air suction port on an upper surface of a device box. CONSTITUTION:By forming a bending part 9a by bending an end of a heat exchanger 9 forwardly, a heat exchanging area of the heat exchanger 9 can be increased without increasing the width of a device box 1. On an upper surface 1e of the device box 1, an air suction port 41 is provided which opens on the upstream side of an airstream which flows into the bending part 9a. Thus the outdoor unit can be installed very closely to a wall. Even when a gap between the heat exchanger 9 and a rear surface la of the device box 1 is very small, external air is suctioned through an air intake port 11 in the rear surface 1a of the device box 1 and the air suction port 41 into the device box 1, whereby wind amount can be prevented from being decreased. By this, the air conditioner can be prevented from stopping because of a lowering of capacity of the outdoor unit or an abnormal rising of high pressure within a refrigerant circuit.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art An example of a conventional outdoor unit for an 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 vertical compressor 5, a controller 6, an accumulator 7, a muffler 8 and the like are arranged in the compressor chamber 3.
In the heat exchanger chamber 4, a plate-shaped heat exchanger 9, a blower 10 and the like are arranged.

The heat exchanger 9 is erected so as to face an air intake 11 formed on the rear surface 1a of the housing 1, and the blower 10 has an exhaust port 13 formed on the front surface 1c of the housing 10. It is installed to face.

When the 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 heat is exchanged with the refrigerant in the process of passing through the heat exchanger 9 to raise the temperature or After the temperature is lowered, it is urged by the blower 10 and discharged from the exhaust port 13. In addition, 15 is a unit installation leg,
It is fixed to the bottom four corners of the bottom plate 1d of the housing 1.

[0006]

When a plurality of the above-mentioned conventional outdoor units are installed in close contact with each other in parallel with the space L in front of the wall 40 as shown in FIG. When N is narrow, the ventilation resistance of the outside air passing through the interval L increases, so that the amount of air sucked into the outdoor unit from the air intake 11 decreases, the capacity of the outdoor unit decreases, and in extreme cases, the refrigerant. There was a risk that the high voltage in the circuit would rise abnormally and the air conditioner would stop due to the operation of the high voltage switch.

[0007]

SUMMARY OF THE INVENTION The present invention has been invented to solve the above problems, and its gist is to provide a plate facing an air intake formed on the back surface of an equipment casing. In an outdoor unit of an air conditioner in which a heat exchanger in the shape of a tube is erected and a blower is installed in an exhaust port formed in the front surface of the casing, the left and right ends or one end of the heat exchanger are bent forward. At the same time, the outdoor unit of the air conditioner is characterized in that an air inlet opening to the upstream side of the air flow flowing into the bent portion of the heat exchanger is provided on the upper surface of the device casing.

[0008]

In the present invention, since the above-mentioned configuration is provided, the outside air is sucked into the device casing not only through the air intake port formed on the back surface of the device casing but also through the air suction port formed on the upper surface of the device casing. After passing through the heat exchanger, it is urged by the blower and discharged to the outside through the exhaust port.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIG. By bending the left end of the heat exchanger 9 toward the front to form the bent portion 9a, the heat exchange area of the heat exchanger 9 is increased without increasing the width of the device casing 1.

A bent portion 9a of the heat exchanger 9 is provided on the upper surface 1e of the casing 1.
An air suction port 41 that is open on the upstream side of the air flow that flows in is formed. Other configurations are similar to those of the conventional one shown in FIG.

However, even when the outdoor unit is installed close to the wall and the distance L between the back surface 1a of the housing 1 and the wall is small, the outside air is taken in by the air intake formed on the back surface 1a of the housing 1. An air inlet formed not only on the inlet 11 but also on the upper surface 1e of the housing 1
Since the air is sucked into the casing 1 through 41, it is possible to suppress a decrease in the air volume.

As shown in FIG. 2, the left and right ends of the heat exchanger 9 can be bent forward to form bent portions 9a and 9b. In this case, each bent portion of the heat exchanger 9 can be bent. Part 9
Air inlets 41, 42 opening upstream of a and 9b are provided on the upper surface 1e of the casing 1.

Another embodiment of the present invention is shown in FIG. The inside of the device casing 20 is vertically divided by a partition plate 21,
A compressor chamber 22 is formed below the partition plate 21, and a heat exchanger chamber 23 is formed above the partition plate 21.

A transverse compressor 24, a controller 25, a muffler 31, an accumulator 32, an oil tank 33, etc. are arranged in the compressor chamber 22, and a heat exchanger 26, a blower 27, etc. are arranged in the heat exchanger chamber 23. Is provided.

The heat exchanger 26 is erected so as to be opposed to an air intake port 28 provided on the back surface 20a of the housing 20 and has both ends 26a thereof.
, 26b is bent forward. Then, on the upper surface 20e of the casing 20, bent portions 26a at both left and right ends of the heat exchanger 26 are
, 26b are provided with air inlets 43, 44 opening upstream. The blower 27 is installed so as to face an exhaust port 29 provided on the front surface 20d of the casing 20.

However, when the blower 27 is driven to rotate by the motor 30, the outside air is sucked into the heat exchanger chamber 23 through the air intake port 28 and the air suction ports 43 and 44 and flows through the heat exchanger 26. After raising or lowering the temperature by exchanging heat with the refrigerant at
It is urged by the blower 27 and discharged from the exhaust port 29 to the outside.

[0017]

According to the present invention, since the left and right ends or one end of the heat exchanger are bent forward, the heat exchange area of the heat exchanger can be increased without increasing the width dimension of the container. Further, since the air suction port that is opened on the upstream side of the air flow that flows into the bent portion of the heat exchanger is provided on the upper surface of the device casing, the outside air is not limited to the air intake formed on the back surface of the device casing and the outside of the device casing. It is sucked into the housing through the air suction port formed on the upper surface and flows through the heat exchanger. Therefore, even when the distance between the back surface of the housing and the wall is small, it is possible to suppress a decrease in the amount of air flowing through the heat exchanger, which reduces the capacity of the outdoor unit and abnormally increases high pressure in the refrigerant circuit. The operation stop of the air conditioner based on it can be prevented in advance.

[Brief description of drawings]

FIG. 1 is a top view of an outdoor unit showing a first embodiment of the present invention.

FIG. 2 is a top view of an outdoor unit showing a second embodiment of the present invention.

FIG. 3 shows a schematic configuration of a third embodiment of the present invention,
(A) is a front view, (B) is a side view, and (C) is a top view.

FIG. 4 shows a schematic configuration of a conventional outdoor unit, (A)
Is a front view, (B) is a side view, and (C) is a plan view.

FIG. 5 is a plan view showing the installation procedure of a conventional outdoor unit.

[Explanation of symbols]

 1 Cabinet 1a Rear 1c Front 11 Air inlet 9 Heat exchanger 9a, 9b Bend 10 Blower 41 Air inlet

Claims (1)

[Claims] 1. Air comprising a plate-shaped heat exchanger installed upright to face an air intake formed on the back surface of the housing, and a blower installed on an exhaust opening formed on the front surface of the housing. In the outdoor unit of the air conditioner, both left and right ends or one end of the heat exchanger are bent forward, and an air inlet opening to the upstream side of the air flow flowing into the bent portion of the heat exchanger is provided on the upper surface of the device casing. An outdoor unit of an air conditioner characterized by being provided.