JPH0590215U - Air conditioner - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention encloses a centrifugal blower that blows out air in the centrifugal direction, and a pair of fins in the second row or more in the vicinity of the bent portion of an L-shaped heat exchanger having two or more rows. To provide an air conditioner that does not use special parts to prevent the generation of noise and the reduction of heat exchange rate due to stagnation of wind by smoothing the flow of wind and reducing turbulence. It is intended for. [Structure] Blower 2 in the center of the ceiling surface of the indoor unit body
And the fins 12 in the outer row, which are aligned with the fins 11 in the inner row, are formed by a pair of two or more rows of L-shaped heat exchangers positioned with the number of fins in a fixed length reduced.

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 is a pair of L-shaped heat exchangers surrounding the blower 2, and 4 is an outlet for blowing air from the main body 1. FIG. 5 is a central longitudinal sectional view of the 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. 6 is an enlarged 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, and 8 is a heat exchange pipe that transfers heat to the fin.

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 and has two rows, the positions of the fins in the inner row and the fins in the outer row do not match, and as a result, the fins in the outer row are located in the inner row. By entering between the fins, the fins become dense and the air flow is blocked. Therefore, wind turbulence was generated, which caused noise. In addition, since the stagnation of the wind occurs, the heat exchange rate also deteriorates.

The present invention aims to eliminate wind turbulence and stagnation in an L-shaped heat exchanger having two or more rows.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the air conditioner of the present invention includes a blower located in the central portion of the ceiling surface of the main body and a pair of L-shaped fins of two or more rows enclosing the blower in the inner row. It consists of a heat exchanger with a reduced number of fins in a given length to position the outer rows of fins after the second.

An air conditioner of another invention is configured by a heat exchanger in which the fins on the leeward side of the inner row are deformed so as to match the orientation of the outer row of fins.

[0010]

[Action]

 In the air conditioner of the present invention, the positions of the fins on the outer row are aligned with the fins on the inner row, and the number of fins in a certain length is reduced, so that the air flow of the inner and outer fins is smooth. .. Therefore, it is possible to prevent wind turbulence and prevent a decrease in heat exchange rate due to noise generation and stagnation of wind.

According to another invention, the fins of the inner row are deformed so that the leeward ends are aligned with the orientation of the fins of the outer row, so that the fins of the outer row have a smoother flow of wind, which causes disturbance. The flow can be prevented, and the heat exchange rate can be prevented from lowering due to noise generation and wind stagnation. Moreover, since the number of fins in the outer row is not reduced, the heat exchange rate of the heat exchanger can be maximized.

[0012]

[Embodiment] Hereinafter, a first embodiment of the 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 view of a first embodiment of an air conditioner according to the present invention. 10 is an L-shaped heat exchanger with two rows. FIG. 2 is an enlarged view of the vicinity of the bent portion of the two-row L-shaped heat exchanger 10 of the air conditioner according to the first embodiment. In FIGS. 1 and 2, 11 is a fin in the inner row, and 12 is a fin in the outer row. The number of fins in a given length is reduced in order to position the fins 12 in the outer row in line with the fins 11 in the inner row of the heat exchanger 10.

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 11 in the inner row and the fins 12 in the outer row of the heat exchanger 10. Harmonize.

As described above, in the air conditioner of this embodiment, by arranging the fins 12 in the outer row in accordance with the fins 11 in the inner row of the heat exchanger 10, the wind in the fins 12 in the outer row is reduced. It is possible to prevent what was causing the turbulent flow. 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 designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 3 is an enlarged view of the vicinity of the bent portion of the L-shaped heat exchanger 13 in two rows of the air conditioner in the second embodiment. In FIG. 3, 14 is a fin in the inner row, and 15 is a fin in the outer row. The leeward ends of the fins 14 in the inner row of the heat exchanger 13 are deformed so as to match the orientation of the fins 15 in the outer row.

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 normal direction, and heat is exchanged while passing between the fins 14 in the inner row and the fins 15 in the outer row of the heat exchanger 13. Harmonize.

As described above, in the air conditioner of this embodiment, the leeward ends of the fins 14 in the inner row of the heat exchanger 13 are deformed so as to be aligned with the direction of the fins 15 in the outer row. The flow of wind becomes smooth in the fins 15 in the outer row. 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 in the outer row is not reduced, the heat exchange rate of the heat exchanger can be maximized.

[0020]

[Effect of the device]

 As described above, the air conditioner of the present invention reduces the number of fins in the outer row of fins in the outer row by aligning the fins in the outer row with the fins in the inner row to reduce the number of fins in the outer row. In, the turbulent flow is reduced because the flow of the wind becomes smooth, and it is possible to prevent noise generation and reduction of the heat exchange rate due to stagnation of the wind. In addition, it is not necessary to add parts to reduce noise.

According to another invention, the fins of the inner row are deformed so that the leeward ends are aligned with the orientation of the fins of the outer row, so that the fins of the outer row have a smooth wind flow. As a result, turbulence is reduced, and it is possible to prevent noise and the reduction of heat exchange rate due to stagnation of wind. Moreover, since the number of fins in the outer row is not reduced, the heat exchange rate of the heat exchanger can be maximized.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment 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 main body 2 Blower 6 Ceiling surface 10,13 Heat exchanger 11,14 Inner row fins 12,15 Outer row fins

Claims (2)

[Scope of utility model registration request] 1. An indoor unit body comprising a blower in the central portion of the ceiling surface and a pair of L-shaped heat exchangers surrounding the blower, the heat exchangers having two or more rows and having an inner side. An air conditioner characterized in that the outer fins of the second and subsequent rows are positioned in accordance with the fins of the second row. 2. The indoor unit body comprises a blower located in the central portion of the ceiling surface, and a pair of L-shaped heat exchangers surrounding the blower, said heat exchangers having two or more rows and having an inner side. The air conditioner is characterized in that the leeward side end of the fin is deformed so as to match the direction of the outer fins in the second and subsequent rows.