JPH0590214U - Air conditioner - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention encloses a centrifugal blower that blows air in the centrifugal direction, smooths the flow of wind near the bends of a pair of L-shaped heat exchangers, and creates turbulence. By reducing
It is an object of the present invention to provide an air conditioner capable of preventing a decrease in heat exchange rate due to noise generation and stagnation of wind without using special parts. [Structure] A pair of L-shaped heat exchangers 11 and 1 surrounding a blower 2 in the center of a ceiling surface 6 of an indoor unit body 1
The number of fins 7 is reduced at the bending start portion of 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air conditioner.

[0002]

[Prior Art]

 As a conventional air conditioner, there is one disclosed in JP-A-63-231123.

Hereinafter, the conventional air conditioner will be described with reference to the drawings. FIG. 4 is a plan layout view of a conventional air conditioner. In FIG. 4, 1 is an indoor unit main body, and 2 is a blower located at the center of the main body 1. Reference numeral 3 denotes a pair of L-shaped heat exchangers surrounding the blower 2, and reference numeral 4 denotes an outlet for blowing air from the main body 1. Further, FIG. 5 is a central longitudinal sectional view of a conventional air conditioner.

In FIG. 5, reference numeral 5 is a suction port through which the blower 2 sucks air. Reference numeral 6 denotes a ceiling surface of the main body 1 on which the blower 2, the heat exchanger 3 and the like are fixed and arranged. FIG. 5 is a detailed view of the bent portion of the L-shaped heat exchanger 3 shown in FIG. Reference numeral 7 is a fin that constitutes the heat exchanger 3.

The operation of the air conditioner configured as described above will be described below. First, the blower 2 rotates and sucks the air in the room to be air-conditioned through the suction port 5, creates an air flow in the rotational radial direction of the blower 2, and passes through between the fins 7 of the heat exchanger 3. Heat is exchanged and the heat-exchanged air is blown out from the air outlet 4 of the main body 1 to condition the air in the room.

[0006]

[Problems to be solved by the device]

 However, in the above conventional configuration, since the heat exchanger is L-shaped, the flow of air in the centrifugal direction (parabolic direction) by the blower causes the windward wind on the processing windward side near the L-shaped bent portion. Since the fins were dense, wind turbulence was generated, causing noise. In addition, the stagnation of the wind causes the heat exchange rate to deteriorate.

An object of the present invention is to eliminate wind turbulence and stagnation near an L-shaped bent portion.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the air conditioner of the present invention is provided with a fan located at a central portion of a ceiling surface of a main body, and a number of fins in a constant length of an L-shape which surrounds the fan and is a distance from the fan. It consists of a heat exchanger with a reduced number of fins at the beginning of bending.

An air conditioner of another invention is composed of a heat exchanger in which the shape of the fins is deformed at the windward end of the fins at the beginning of bending depending on the distance from the blower in the same direction as the wind. ing.

[0010]

[Action]

 Since the air conditioner of the present invention is an L-shaped heat exchanger, the angle at which the flow of air emitted from the blower hits the fins of the heat exchanger varies depending on the distance from the blower. Also, since fins are stacked and bent to form an L-shape, the fins on the windward side become dense at the bent part of the heat exchanger, and therefore the angle of contact with the fins is sharp and turbulent flow occurs near the bent part of the heat exchanger. By reducing the number of fins in a certain length at the beginning of bending that tends to occur, the flow of wind becomes smoother, which reduces turbulence and prevents the generation of noise and the reduction of heat exchange rate due to stagnation of wind. it can. Also, no additional parts are required to reduce noise.

According to another invention, by deforming the windward end of the fin near the bending portion in the windward direction in the same direction as the direction of the wind, the flow of the wind becomes smooth and turbulence is reduced. It is possible to prevent a decrease in heat exchange rate due to noise generation and stagnation of wind. Also, since the number of fins can be made dense, the heat exchange rate of the heat exchanger can be maximized.

[0012]

【Example】

 Hereinafter, a first embodiment of an air conditioner of the present invention will be described with reference to the drawings. The same components as those of the related art will be designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 1 is a plan layout view of first and second embodiments of an air conditioner according to the present invention. FIG. 2 is an enlarged view of the vicinity of the bent portion of the L-shaped heat exchanger 11 of the air conditioner according to the first embodiment. 1 and 2, 11 is a heat exchanger, and 12 is a heat exchange pipe that transfers heat to the fins. The number of fins in a certain length is reduced at the bending start portion near the bent portion of the fin 7 of the heat exchanger 11.

The operation of the air conditioner configured as above will be described below. The blower 2 rotates to create a flow of air in the rotational radial direction, and heat is exchanged while passing between the fins 7 of the heat exchanger 11, thereby performing air conditioning.

As described above, in the air conditioner of the present embodiment, the heat exchanger 11 is processed by reducing the number of fins within a certain length at the bending start portion near the bending portion of the heat exchanger 11. The upper side and the windward side are dense, and it is possible to prevent the things that were generating wind turbulence. By preventing turbulence, it is possible to prevent noise generation and reduction of heat exchange rate due to stagnation of wind.

Next, an air conditioner according to a second embodiment will be described with reference to the drawings. The same components as those of the related art will be denoted by the same reference numerals and detailed description thereof will be omitted. 13 is a fin of the heat exchanger 11.

FIG. 3 is an enlarged view of the vicinity of the bent portion of the L-shaped heat exchanger 11 of the air conditioner according to the second embodiment. In FIG. 3, the windward ends of the fins 13 of the heat exchanger 11 near the bend are deformed in the same direction as the wind.

The operation of the air conditioner configured as above will be described below. The blower 2 rotates to create a flow of air in the rotational radial direction, and heat is exchanged while passing between the fins 13 of the heat exchanger 11 to perform air conditioning.

As described above, in the air conditioner of the present embodiment, by deforming the windward ends of the fins 7 of the heat exchanger 3 in the vicinity of the bent portion in the same direction as the wind direction, the flow of wind becomes smooth. Become . Therefore, by preventing the turbulence of the wind, it is possible to prevent the generation of noise and the reduction of the heat exchange rate due to the stagnation of the wind. Moreover, since the number of fins can be made dense, the heat exchange rate of the heat exchanger can be maximized.

[0020]

[Effect of the device]

 As described above, according to the present invention, the air conditioner of the present invention reduces the number of fins in a certain length in a portion where turbulence is likely to occur, because the angle of contact with the fins is sharp near the bent portion of the heat exchanger. As a result, the flow of the wind becomes smooth and turbulence is reduced, which can prevent noise from being generated and lowering of the heat exchange rate due to stagnation of the wind. Also, no additional parts are required to reduce noise.

In another invention, the windward end of the fin near the bent portion is deformed in the same direction as the direction of the wind, so that the flow of the wind becomes smooth and turbulent flow is reduced to generate noise. It is possible to prevent a decrease in heat exchange rate due to stagnation of air and wind. Moreover, since the number of fins can be made dense, the heat exchange rate of the heat exchanger can be maximized.

[Brief description of drawings]

FIG. 1 is a plan layout view of first and second embodiments of an air conditioner according to the present invention.

FIG. 2 is an enlarged view of a bent portion of the L-shaped heat exchanger of the air conditioner of the first embodiment according to the present invention.

FIG. 3 is an enlarged view of a bent portion of an L-shaped heat exchanger of an air conditioner according to a second embodiment of the present invention.

FIG. 4 is a plan view of a conventional air conditioner.

FIG. 5 is a central longitudinal sectional view of a conventional air conditioner

FIG. 6 is an enlarged view of a bent portion of an L-shaped heat exchanger of a conventional air conditioner.

[Explanation of symbols]

 1 Indoor unit body 2 Blower 6 Ceiling surface 7 Fins 11 Heat exchanger 13 Fins

Claims (2)

[Scope of utility model registration request] 1. The number of fins in a certain length of the heat exchanger, which comprises a blower in the center of the ceiling surface of the indoor unit body and a pair of L-shaped heat exchangers surrounding the blower. An air conditioner characterized by reducing the number of fins at the beginning of bending depending on the distance from the blower. 2. An indoor unit main body comprising a blower in the central portion of the ceiling surface and a pair of L-shaped heat exchangers surrounding the blower, the fin shape of the heat exchanger depending on the distance from the blower. An air conditioner characterized in that the windward end of the fin at the beginning of bending is deformed in the same direction as the wind.