JPH0590213U - Air conditioner indoor unit - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the heat exchange performance of the indoor unit of an air conditioner. [Structure] FIG. 1 is a side view showing the inside of an indoor unit. An air passage 6, which connects the upper suction ports 4a and 4b and the lower air outlet 5, has an air filter 7, a heat exchanger 8, and a blower 9 for sending out heat-exchanged air. The heat exchanger 8 is bent in three in order to make the housing (indoor unit) 1 smaller. A part of the air entering from the upper suction port 4b passes through the upper bent portion of the heat exchanger 8, but heat cannot be exchanged at this bent portion, so the heat exchange rate of the heat exchanger 8 decreases. In order to prevent this decrease in the heat exchange rate, a wind shield plate 13 is attached to the lower part of the bent portion of the inverted V-shaped heat exchanger 8 so that the air flow entering from the suction port 4b is divided into two parts, a front and a rear part. Distribute to heat exchanger. By doing so, useless air flow is eliminated, and the heat exchange rate is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an indoor unit of an air conditioner, and more particularly, to a means for improving heat exchange performance of the indoor unit.

[0002]

[Prior Art]

 The indoor unit of the air conditioner is as shown in FIGS. 1 and 5, and the casing 1 is composed of a main body 2 and a front cover 3 that is detachably attached to the main body 2. Suction ports 4a and 4b for taking in indoor air are provided in the upper part of the housing 1, and a blowout port 5 for sending the heat-exchanged air into the room is formed in the lower part of the front surface. In the air passage 6 connecting the suction ports 4a, 4b and the air outlet 5, an air filter 7 detachably provided near the suction ports 4a, 4b, and facing the main body 2 side and the front cover 3, respectively. There is an inverted V-shaped heat exchanger 8 bent in the direction of, and a blower (cross flow fan) 9 arranged at the lower part of this heat exchanger 8 and the like. The air exchanged by the heat exchanger 8 is blown by the blower 9. It is designed to be delivered indoors. The air outlet 5 is provided with a wind direction plate 10 for adjusting the direction of the wind. By the way, when the heat exchanger 8 is bent in an inverted V shape as described above, the upper portion of the bent portion is in an open state, so that the flow of air that is not heat-exchanged increases and the heat exchange rate decreases. Therefore, in the past, a wind shield plate 15 was put on the upper part of the bent portion which is in an open state so as to eliminate the unnecessary air flow.

[0003]

[Problems to be solved by the device]

 However, if the wind shield 15 as described above is covered on the upper portion of the bent portion of the heat exchanger 8, the air flow through the bent portion disappears, but the shaded portion of the lower portion of the wind shield 15 shown in the figure. However, there was a problem that turbulent flow occurred and the air flow deteriorated, and the heat exchange rate was not improved as planned. Further, since the above-mentioned wind shield plate 15 needs to be provided with a plurality of locking pieces for locking the heat exchanger 8 side, it has a complicated shape and requires a lot of materials. , Was also disadvantageous in terms of cost. Therefore, it is an object of the present invention to provide an indoor unit for an air conditioner that solves these problems.

[0004]

[Means for Solving the Problems]

 The present invention has been made in order to solve the above-mentioned problems, and at least an attachable / detachable air filter is provided in an air passage that connects a suction port at the upper part of the housing and an air outlet at the lower part of the same housing. In an indoor unit of an air conditioner, which is provided with an inverted V-shaped heat exchanger bent so as to face the front surface and a back surface of the air conditioner, respectively, and a blower for sending out the heat-exchanged air. An inverted V-shaped wind shield was installed at the bottom of the bent part.

[0005]

[Action]

 With the above configuration, the inverted V-shaped heat shield is provided at the bottom of the bent portion of the inverted V-shaped heat exchanger so that the heat exchanger can be bent from the suction port at the top of the housing. It is possible to distribute the air flow toward the section to the front and back along the wind shield and pass it through the front and rear heat exchangers. Therefore, the air from the suction port can be thoroughly used for heat exchange.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing the external appearance of the indoor unit, and FIG. 2 is a side sectional view showing the inside of the indoor unit. The housing 1 is composed of a main body 2 and a front cover 3 detachably attached to the main body 2. The front panel 3a of the front cover 3 is rotatably supported at the upper portion so as to be openable and closable. Suction ports 4a, 4b for indoor air are provided in the upper part of the front cover 3, and an outlet port 5 is formed in the lower part of the front face. An air passage 6 is formed between the suction ports 4a, 4b and the air outlet 5, and the air passage 6 can be moved along the inner surface of the front cover 3 toward the main body 2 side. A detachable air filter 7, a heat exchanger 8 bent in three, and a blower (cross flow fan) 9 are arranged, and the air that has been heat-exchanged by the heat exchanger 8 is blown by the blower 9 into an outlet 5 The wind direction into the room is adjusted by the wind direction plate 10.

The heat exchanger 8 is horizontally bent in three, and two adjacent ones are formed in an inverted V shape, one of which faces the main body 2 side and the other of which faces the front cover 3 side. It is arranged. The blower 9 is provided in the center of the lower part of the heat exchanger 8 formed in an inverted V shape. With such an arrangement, the distance difference between the blower 9 and each of the three bent heat exchangers is reduced, and the distribution of air passing through the heat exchanger 8 (wind speed distribution) can be improved, and at the same time, This is because the housing 1 can be downsized. Note that 11 and 12 in the figure are dew receiving grooves for receiving the dew condensation water flowing down from the heat exchanger 8. The dew condensation water collected in the rear dew receiving groove 12 is a front dew receiving channel by a water channel (not shown). It is designed to be guided to the groove 11.

By the way, in the heat exchanger 8 as shown in the figure, if the bent portion is left open, the air that has not been heat-exchanged passes therethrough, and the heat exchange rate decreases. Therefore, in this embodiment, the wind shield plate 13 is provided below the bent portion of the heat exchanger 8 formed in the inverted V shape. The wind shield plate 13 is an inverted V-shaped molded product as shown in FIG. 3, and has a length corresponding to the heat exchanger 8. On the other hand, the fins of the heat exchanger 8 are provided with notches 14 as shown in FIG. 4, which are necessary for mounting the wind shield plate 13. The notch 14 is punched out when the fin is manufactured.

The arrow indicates the flow of air flowing in from the upper suction port 4 a. When the heat shield 8 is equipped with the wind shield plate 13, the air flow toward the bent portion of the heat exchanger 8 is shown. Is distributed to the front and back by the wind shield plate 13 and flows in the two front and rear heat exchangers formed by bending. Although the wind shield 13 is a resin molded product, it is not limited to this, and it may be processed into a predetermined shape using, for example, an aluminum material. Instead of being formed in a shape, the heat exchanger 8 may be attached to the notch 14 as a flat plate before being bent into a predetermined shape, and may be formed into a predetermined shape at the same time as the heat exchanger 8.

[0010]

[Effect of the device]

 In the case of an air conditioner in which the wind shield plate as described above is attached to an inverted V-shaped heat exchanger, the air taken in from the suction port flows through the heat exchanger without waste, so the heat exchange rate is high. As well as improving, there is no fear of turbulence, which reduces noise.However, the windshield that produces these effects does not have a complicated structure as in the past, but is simple in shape and inexpensive. it can.

[Brief description of drawings]

FIG. 1 is an external perspective view of an indoor unit for explaining the present invention and a conventional example.

FIG. 2 is a side sectional view of an essential part of an indoor unit showing an embodiment of the present invention.

FIG. 3 is an enlarged perspective view of a wind shield plate according to an embodiment of the present invention.

FIG. 4 is an enlarged side sectional view of an essential part of an indoor unit showing an embodiment of the present invention.

FIG. 5 is a side sectional view of an essential part of an indoor unit showing a conventional example.

[Explanation of symbols]

 1 Case 2 Main Body 3 Front Cover 4a Suction Port 4b Suction Port 5 Blowout Port 6 Air Passage 7 Air Filter 8 Heat Exchanger 9 Blower 13 Windshield 14 Notch

Claims (2)

[Scope of utility model registration request] 1. An air passage connecting an inlet of an upper part of the casing and an outlet of a lower part of the casing, at least a detachable air filter, and a front and a back of the air passage. In an indoor unit of an air conditioner including an inverted V-shaped heat exchanger and a blower that sends out the heat-exchanged air, an inverted V-shaped wind shield plate is provided below a bent portion of the heat exchanger. An indoor unit of an air conditioner characterized by being provided. 2. The indoor unit of an air conditioner according to claim 1, wherein the fin members facing each other at the lower portion of the bent portion of the heat exchanger are provided with cutout portions for locking the wind shields.