JPH06109271A - Air conditioner - Google Patents

Abstract

PURPOSE:To obtain an air conditioner which is capable of removing a fixing plate and fixing at various angles by placing the angle of fins for an upper part heat exchanger to the inside of a lower part heat exchanger and setting the corner of the fins for the lower part heat exchanger to a right angle or an acute angle. CONSTITUTION:A heat exchanger 1 is provided with a notched part and bent with an angle at a position where an upper part heat exchanger 1a and a lower heat exchanger 1b are placed on the lee side at a specified position of fins in the longitudinal direction. More specifically, the corner of the notched part of the upper part heat exchanger 1a is located inside the notched part of the lower part heat exchanger 1b. Furthermore, the corner of the notched part of the lower part heat exchanger 1b is a right angle or an acute angle. This construction makes it possible to prevent the heat exchanger 1 from dropping condensed water to any place but a water receiving pan 3 and carry out favorable water treatment without dispersing water over to a fan 2 and remove a fixing plate sharing various bending angles for common use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an air conditioner,
The present invention relates to water treatment of a finned heat exchanger bent to have an angle at a predetermined position.

Further, the present invention relates to a plate for holding both ends of the heat exchanger.

[0003]

2. Description of the Related Art Conventionally, in a heat exchanger of an indoor unit of a separate type air conditioner, a notch shape of an upper heat exchanger and a lower heat exchanger having a predetermined angle is shown in a detailed view of a bent portion in FIG. The upper and lower heat exchanger cutouts are wedge-shaped so that the corners of the upper heat exchanger cutout are located inside the lower heat exchanger, and the water attached to the heat exchanger is treated during cooling operation. It was

The bent portion of the plate, in which the upper heat exchanger and the lower heat exchanger have a predetermined angle, bends the heat exchanger at a predetermined angle as shown in a detailed view of the bent portion of FIG. A fixing plate fitted to a predetermined angle was fixed to the plate with two screws, and when the bending angle was changed, another fixing plate was used to keep the angle.

Also, a bending plate is provided at both ends of the fin and fixing plates are used, which is described in Japanese Patent Laid-Open No. 3637/1993.

[0006]

However, the notch of the heat exchanger of the conventional air conditioner has a wedge shape, and the notch of the lower heat exchanger has an obtuse angle, and the descending inclination is Attached. Therefore, when water is attached to the heat exchanger, the water is likely to be transmitted to the outside of the heat exchanger, and there is a possibility that the water may splash on the fan due to the wind pressure of the fan. Therefore, an object of the present invention is to further improve the water treatment performance of the heat exchanger.

Further, in the plate of the heat exchanger of the conventional air conditioner, the shape of the fixing plate of the bending portion must be changed according to the bending angle. Moreover, since the fixing plate and the two screws are used, the manufacturing cost is increased. Therefore, an object of the present invention is to provide an inexpensive air conditioner by removing the fixing plate to reduce the number of parts, and to provide a structure that can be fixed at various angles.

[0008]

In order to solve the above-mentioned problems, the present invention has a shape in which the fins of the heat exchanger are notched so that the corners of the fins of the upper heat exchanger are located inside the lower heat exchanger. In addition, the fins of the lower heat exchanger are formed by fins whose corners have a right angle or an acute angle.

Further, according to the present invention, the plate of the heat exchanger is manufactured in such a shape that it is bent in a shape opposite to the bending angle having a predetermined bending angle, and the notch of the plate bending portion can be fixed by overlapping the plates. , It is designed so that various bending angles can be shared.

[0010]

The function of the above means is that when the corners of the notch of the lower heat exchanger are made acute, when water attached to the heat exchanger flows from the upper heat exchanger to the lower heat exchanger during cooling operation. , The water at the cut corners of the lower heat exchanger can be guided along the slope into the heat exchanger and treated in the water tray without being scattered by the fan.

Further, according to the present invention, in the bent portion of the plate of the heat exchanger, the cutout of the upper plate and the cutout of the lower plate can be fixed by superimposing them, and the fixing plate can be removed. Furthermore, since the plate is manufactured in a shape that is bent in a direction opposite to the predetermined bending direction, a large overlapping margin of the cutout of the bending portion can be taken, so that various angles can be set when fixing with a screw or the like, and it can be shared.

[0012]

EXAMPLE An example of the present invention will be described with reference to FIG. The figure is a side sectional view of the indoor unit.

In the figure, 1 is a heat exchanger, 2 is a fan, 3 is a water pan, 4 is a discharge grill, 5 is a main body, and 6 is a decorative grill. Here, the heat exchanger 1 is the upper heat exchanger 1
A and the lower heat exchanger 1b are bent at a predetermined position in the longitudinal direction of the fin 1c so as to have a notch at an leeward position and are bent to have an angle. 1d is a plate that holds both ends of the heat exchanger. FIG. 2 is an enlarged view of the bent portion of the heat exchanger 1.

From this figure, the corners of the notch of the upper heat exchanger 1a are inside the notch of the lower heat exchanger 1b. Further, the corner portion of the cutout portion of the lower heat exchanger 1b has an acute angle.

FIG. 4 is a diagram showing how condensed water flows during the cooling operation. From this figure, even if water droplets flow from the upper part, the lower cutout shape allows the water to be processed, and the water can be processed in the heat exchanger and flowed to the water pan. In addition, water droplets flowing along the notches can be stopped at the corners having an acute angle to prevent them from flowing out.

Therefore, as shown in the figure showing the flow of condensed water during the conventional cooling operation of FIG. 5, when the water droplets flow from the upper part, the water droplets sprung at the notch by the force of the wind pressure by the fan. Therefore, there is no possibility of being scattered, and good water treatment is possible without water droplets flowing along the notch collecting at the tip of the notch.

FIG. 6 shows a plate which holds both ends of a conventional heat exchanger. FIG. 7 shows plates holding both ends of the heat exchanger. FIG. 7A is a state diagram of a pressing process for manufacturing a plate. From this figure, it can be seen that the material of the plate bending portion can be used because the material is bent in the direction opposite to the predetermined bending direction. Then, FIG. 6B and FIG.
As shown in the enlarged view of the bent portion when fixing the plate in FIG. 9, by making one of the notches oblong even when bent by α degrees and β degrees as shown in the figure, the structure can be fixed with one screw for common use. be able to. Further, the fixing plate which has been used conventionally can be removed, and an inexpensive air conditioner can be provided.

[0018]

As is clear from the above description, in the heat exchanger of the present invention, condensed water at the time of cooling can be dropped to a place other than the water receiving tray,
Good water treatment is possible without scattering to the fan.

Further, in the plate of the heat exchanger having a predetermined bending angle, the fixing plate can be removed, and further various bending angles can be shared.

[Brief description of drawings]

FIG. 1 is a side sectional view of an indoor unit showing an embodiment of the present invention.

FIG. 2 is an enlarged view of a bent portion of the heat exchanger 1.

FIG. 3 is an enlarged view of a bent portion of a heat exchanger showing a conventional example.

FIG. 4 is a diagram showing how condensed water flows during a cooling operation.

FIG. 5 is a diagram showing how condensed water flows during a conventional cooling operation.

FIG. 6 is a view showing a plate that holds both ends of a conventional heat exchanger.

FIG. 7 is a view showing plates that hold both ends of the heat exchanger according to the embodiment of the present invention.

FIG. 8 is an enlarged view of a plate that holds both ends of a conventional heat exchanger.

FIG. 9 is an enlarged view of a plate holding both ends of the heat exchanger according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Heat exchanger, 1a ... Upper heat exchanger, 1b ... Lower heat exchanger, 1c ... Fins, 2 ... Fan, 3 ... Water saucer, 4 ... Discharge grill, 5 ... Main body, 6 ... Makeup grill, 7 ... Water drop , 8 ... fixing hole, 9 ... elongated hole, 10 ... screw, 11 ... fixing plate.

Front Page Continuation (72) Inventor Tomoko Kaneko 800 Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Prefecture Hitachi Co., Ltd. Tochigi Plant

Claims (2)

[Claims] 1. A fin, which is arranged in parallel at a constant interval, has a fin between which an air flow flows and a heat transfer tube which is inserted at a right angle to the fin and through which a refrigerant flows, and which is located at a predetermined position in the longitudinal direction of the fin. Make a notch at the leeward side,
In a heat exchanger having a predetermined angle, the cutout shape of the fins is such that the corners of the fins of the upper heat exchanger are located inside the lower heat exchanger, and the corners of the fins of the lower heat exchanger are An air conditioner provided with a heat exchanger configured by fins having a notched shape that is a right angle or an acute angle. 2. A plate for holding both ends of a bending heat exchanger having a predetermined angle, wherein the bending notches of the plate are superposed and fixed, and the plate has a shape capable of sharing various bending angles. An air conditioner characterized by being provided with an improved heat exchanger.