JP2009198012A - Indoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a shield plate of a heat exchanger from coming off by means of a rib disposed on the shield plate even if a strong impact shock is added to a product in a packing state during transportation and the like in a distribution stage. <P>SOLUTION: In this indoor unit of an air conditioner in which a plurality of detachable air filters 10, an inverted V-shaped heat exchanger 4 divisionally formed to be opposed to a front face and a back face of the air distribution pathway, and an air distribution fan 5 and the like for sending heat-exchanged air are disposed in an air distribution pathway 13 connecting a suction opening 7 at an upper portion of a housing and a supply opening 8 at a lower portion of the housing, and furthermore, the shield plate 18 is disposed to close a clearance between a front heat exchanger and a rear heat exchanger of the divided face of the heat exchanger, the rib 21 for preventing the shield plate from coming off is formed substantially at the center in the transverse direction of the shield plate kept into contact with the air filter. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an indoor unit of a home-use separate type air conditioner.

The casing of the indoor unit of the air conditioner is composed of a main body and a front cover that is detachably put on the main body, and an upper portion of the casing is provided with a suction port for taking in indoor air. A blower outlet is formed in the lower part of the front surface for sending heat-exchanged air into the room. In the air passage connecting the suction port and the air outlet, there is an air filter detachably provided near the suction port, and an inverted V-shaped heat formed so as to be opposed to the main body side and the front cover, respectively. There are an exchanger and a blower (cross flow fan) disposed at the lower portion of the heat exchanger, and the air heat-exchanged by the heat exchanger is sent out indoors by the blower. In addition, a shield plate with a filter guide that guides the air filter is provided on the split surface of the heat exchanger to prevent the air filter from touching the fins of the heat exchanger, so that the air filter can be easily attached and detached. In addition, the passage of air that is not useful for heat exchange is prevented. (For example, see Patent Document 1)
Utility Model Registration No. 2532441

By the way, this conventional one has no problem in normal use, but when a strong impact is applied to the packaged product during transportation in the distribution stage, the shield that connects the front heat exchanger and the rear heat exchanger When the plate is detached, there is a problem in that the amount of air that does not pass through the heat exchanger increases and the heat exchange efficiency decreases.
In addition, since a layer of air that does not exchange heat is formed in the ventilation path, there has been a problem that a water leak complaint occurs in which condensation is partially generated in the air blowing path and the air flows out from the outlet.

  This invention pays attention to this point, and in order to solve the above-mentioned drawbacks, in particular, the structure is provided with a plurality of detachable air filters in the air passage connecting the suction port in the upper part of the casing and the outlet in the lower part of the casing. In addition, an inverted V-shaped heat exchanger that is divided and formed so as to face the front surface and the back surface of the air passage, a blower fan that sends out the heat-exchanged air, and the like are arranged, and a divided surface of the heat exchanger In addition, in an indoor unit of an air conditioner provided with a shield plate that closes between the front heat exchanger and the rear heat exchanger, a shield is provided at a substantially horizontal center of the shield plate in contact with the air filter. A rib for preventing plate detachment is formed.

  According to the present invention, even when a strong impact is applied to a packaged product during transportation in the distribution stage, the shield plate is not removed by the rib provided on the shield plate, thereby reducing the heat exchange efficiency. Condensed water is prevented from jumping out from the air outlet.

Next, an air conditioner according to the present invention will be described with reference to an embodiment shown in the drawings. Reference numeral 1 denotes an indoor unit of a separate type air conditioner, which includes a main body base 2 and a front panel 3 on the front side, and a heat exchanger 4 and a blower fan 5 provided in the case.
The front surface of the front panel 3 is covered with a detachable open panel 6.

Further, the front panel 3 has an upper suction port 7 on the upper surface, a blower outlet 8 on the bottom surface, and a front suction port 9 on the upper front surface of the open panel 6.
A pair of left and right air filters 10 that are detachable in a mesh shape are provided inside the suction ports 7 and 9 to remove dust contained in the suction air.
The heat exchanger 4 includes a front heat exchanger 11 that faces the open panel 6 and a rear heat exchanger 12 that is inclined from the upper suction port 7 toward the main body base 2.

The front heat exchanger 11 has fins formed by passing a copper pipe 11d through a number of aluminum thin plates 11c between a left end plate 11a and a right end plate 11b, and then expanding the copper pipe and welding the end of the copper pipe. A tube-type heat exchanger is used, which is low in temperature as an evaporator during cooling operation and high in temperature as a condenser during heating operation.
The rear heat exchanger 12 is also formed by penetrating a copper pipe 12d through a large number of aluminum thin plates 12c between the left end plate 12a and the right end plate 12b, and then expanding the copper pipe and welding the end of the copper pipe. A fin tube type heat exchanger is used.

Resin from the right side is attached to the lower tongue portion 11f provided on the right end plate 11b at the lower rear side of the front heat exchanger 11 and the mounting hole provided on the lower tongue portion 12f provided on the lower front side of the rear heat exchanger 12. A right mounting plate (not shown) made of metal is fixed with screws.
The blower fan 5 is a cross-flow fan, and is disposed inside the heat exchangers 11 and 12, and communicates the suction ports 7, 8, the air filter 10, the heat exchanger 4, and the blower fan 5 to send a blower path 13. Is forming.

Below the rear heat exchanger 12 of the main body base 2, a rear drain pan 14 that collects and drains condensed water, and a casing 15 that smoothly guides the air from the rear drain pan 14 and the blower fan 5 to the outlet 8 are integrally provided. ing.
Reference numeral 16 denotes a front drain pan provided below the front heat exchanger 11, which is formed in a U-shaped cross section for collecting condensed water. In order to receive the condensed water from the rear drain pan 14, left and right ends are rear drain pans. 14 is extended. An air guider 17 of the blower fan 5 is integrally provided on the bottom surface of the front drain pan 22 so as to face the casing 15, and the blower path 13 is formed between the front drain pan 22 and the casing 15.

  Reference numeral 18 denotes a shield plate arranged in an inverted V shape that closes the upper portions of the front heat exchanger 11 and the rear heat exchanger 12, and the air between the two heat exchangers is opened so that air that is not heat exchanged passes therethrough. In order to reduce the heat exchange rate, a shield plate 18 is provided for preventing the passage of this useless air. The shield plate 18 is a resin molded product. The upper portion guides the air filter 10 at the upper portion, and the lower portion is a plurality of pieces for locking the copper pipes 11d and 12d inserted through the aluminum thin plates 11c and 12c of the heat exchanger 4 The locking pieces 20 are provided on both sides at a predetermined interval. Since these locking pieces 20 are inserted into the gaps between the aluminum thin plates, the thickness is limited and is about 1 mm.

  As shown in FIG. 4, the gap b between the rib 21 and the inner surface of the front panel 3 is made smaller than the copper tube locking dimension a of the locking piece 20 corresponding to the rib 21, thereby removing the shield plate 18. It is to prevent.

Further, a rib 21 is provided at the approximate center in the horizontal direction of the shield plate 18, and the rib 21 is formed at a position that does not hinder the attachment and detachment of the air filter 10 that is slidably mounted to the left and right. Since the gap between the upper portion of the front panel 3 and the heat exchanger 4 and the height of the rib 21 are substantially the same, even when a strong impact is applied to the packaged product during transportation in the distribution stage, the shield The locking piece 20 of the plate 18 is released, and a gap is formed between the front and rear heat exchangers 11 and 12, so that air that does not pass through the heat exchanger 4 increases and heat exchange efficiency decreases, By forming a layer of air that does not perform heat exchange, it is possible to prevent the occurrence of a water leak claim that causes partial condensation in the air blowing path 13 and jumps out of the air outlet 8.
Further, if the ribs 21 are provided not only at the center but also at the left and right ends of the shield plate 18, the shield plate 18 is further prevented from coming off.

Further, by fixing the front and rear heat exchangers 11 and 12 with the plurality of locking pieces 20, the distortion in the thickness direction of the heat exchanger generated during the manufacture of the heat exchanger is corrected, thereby managing the assembly dimensions. Is easier.
22 is an up-and-down air direction board which adjusts the up-and-down air blowing direction, and closes the blower outlet 8 automatically by a louver motor (not shown) at the time of operation stop.

  In this way, even when a strong impact is applied to the packaged product during transportation at the distribution stage, the shield plate will not be removed by the ribs provided on the shield plate, thereby reducing the heat exchange efficiency and blowing. Condensed water is prevented from jumping out from the outlet.

1 is a side sectional view of an embodiment of the present invention. The perspective view of the state which attached the shield board to the same heat exchanger. The perspective view showing the shield plate and an air filter. The fragmentary sectional view of the principal part.

Explanation of symbols

2 Body Base 3 Front Panel 10 Air Filter 11 Front Heat Exchanger 12 Rear Heat Exchanger 18 Shield Plate 20 Locking Piece 21 Rib

Claims (2)

  A plurality of detachable air filters and a reverse V formed so as to face the front surface and the back surface of the air passage in the air passage connecting the suction port at the top of the housing and the air outlet at the bottom of the housing. A shield plate that closes the space between the front heat exchanger and the rear heat exchanger is disposed on the divided surface of the heat exchanger, and a heat exchanger having a letter shape and a blower fan that sends out heat-exchanged air are disposed. An indoor unit for an air conditioner, wherein a rib for preventing the shield plate from coming off is formed at substantially the center in the lateral direction of the shield plate to which the air filter contacts. .   An indoor unit of an air conditioner, wherein a gap dimension between the upper part of the housing and the heat exchanger and a height of the rib are substantially the same.

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