JPS6128977Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is an air conditioner in which a condenser is disposed on the windward side of a propeller fan, in which drain water, etc. is sprayed onto the condenser by a slinger ring provided on the outer periphery of the propeller fan. The purpose is to evaporate drain water, improve the heat exchange ability of the condenser, and further reduce noise caused by spraying drain water.

BACKGROUND ART Conventionally, there have been air conditioners shown in FIGS. 1 to 3 in which drain water or the like is sprayed into a condenser using a slinger ring provided on a propeller fan. That is, in the figure, 1 is a cabinet that protects the inside of the air conditioner, and has a box-like shape consisting of four sides, top, bottom, left and right. 2 is the board,
Internal parts of the air conditioner are fixed on this board 2. The fan motor 3 drives the shaft 4,
The propeller fan 5 connected to the shaft 4 is rotated. A condenser 6 forms a part of the refrigeration cycle, and is disposed only on the front surface on the leeward side of the propeller fan 5. Therefore, the condenser 6 receives the forward wind generated by the rotation of the propeller fan 5 and is cooled. A slinger ring 7 has the role of stirring up drain water, and is integrally molded with the propeller fan 5 so as to have a perfect circular shape having the same axis as the propeller fan 5. The slinger ring 7 has an L-shaped cross section as shown in FIG. 3 so that drain water accumulated in a water reservoir 8 formed on the substrate 2 can be easily scooped up.
A top plate 9 is screwed horizontally from the top surface of the condenser 6 to the top surface of the propeller fan 5. 1
0 is a side plate, which is similarly screwed from the side of the condenser 6 to the side of the propeller fan 5.
The top plate 9 and the side plates 10 also fix the condenser 6 at the same time.

The water sprinkling device for the condenser in a conventional air conditioner has the above-mentioned configuration, in which the condenser 6 is placed on the leeward side of the propeller fan 5, and conversely, the condenser is placed on the windward side of the propeller fan 5. Until now, there was no structure in which a slinger ring was provided on the propeller fan.

For this reason, in conventional air conditioners, the wind sent out by the propeller fan 5 directly hits the condenser, and the water stirred up by the slinger ring hits the side wall of the cabinet 1. There was a drawback that noise increased due to noise.

Therefore, the present invention provides a water sprinkling device for a condenser of an air conditioner that eliminates the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to FIGS. 4 and 5.

In the figure, reference numeral 11 denotes an outer box that forms the top surface and the rear portions of the left and right sides of the outdoor unit main body of the air conditioner, and together with a substrate 12 that forms the bottom and rear surfaces, forms the outer shell of the outdoor unit main body. 1
Reference numeral 3 designates the wire meshes provided on the front and left and right side surfaces of the outdoor unit main body, which form air inflow ports. Reference numeral 14 denotes louvers formed on the left and right side walls of the outer box 11, which form air outflow ports. Reference numeral 15 denotes a propeller fan air guider provided approximately in the center of the outdoor unit main body in the longitudinal direction, and thereby partitions the interior of the outdoor unit main body into a windward side and a leeward side. A hole 17 that covers the outer periphery of the propeller fan 16 is formed approximately in the center of the propeller fan air guider 15 . The propeller fan 16 is fixed to a rotating shaft 19 of a fan motor 18 which is fixed to a base plate 12 forming the back wall of the outdoor unit main body with screws or the like, and sucks air from the wire mesh 13 side and blows it out from the louver 14 side. be rotated. 20 is the wire mesh 1
This is a Finch-tube type condenser installed along the inside of the refrigeration cycle, and is used to condense the refrigerant in the refrigeration cycle. This condenser 20 is bent into a substantially U-shape, and the bent portion is bent with an appropriate radius of curvature. Therefore, in this bend, the inner fin pitch is extremely small. This condenser 20 has both ends fixed to the propeller fan air guider 15 so that the base plate 1
It is supported on 2. 21 is propeller fan 1
This is a slinger ring installed near the tip of the air intake side of 6, and its cross-sectional shape is approximately L-shaped.
The tip is shaped to face upwind to effectively scoop up water. 22 is the slinger ring 2 at the bottom of the substrate 12.
This is a water reservoir part 22 formed at a position opposite to the indoor unit 1, and dew water generated in an evaporator of an indoor unit (not shown) is guided and collected into this water reservoir part 22.
Note that the condenser 2 is arranged so that the bent portion of the condenser 20 is located in the centrifugal direction of the slinger ring 21.
0 and the propeller fan 16 are determined. 23 is a compressor.

Next, the operation of the above configuration will be explained.

When the air conditioner is operated, dew water generated in the outdoor unit is led onto the substrate 12 of the outdoor unit as drain water and is stored in the water reservoir 22. The water collected in this water reservoir 22 is collected by the slinger ring 2.
Water is stirred up and sprinkled by 1. That is, water is scattered in the centrifugal direction of the slinger ring 21 due to the centrifugal force of the slinger ring 21;
Since the condenser 20 is disposed in the centrifugal direction of the slinger ring 21, water is sprinkled onto the condenser 20.

As a result, the heat exchange capacity of the condenser 20 increases, and the refrigeration capacity also increases.

Furthermore, even when drain water is sprinkled onto the condenser 20 by the slinger ring 21,
A bent part of the condenser 20 is located in the centrifugal direction of the slinger ring 21, where drain water is sprayed, and the inside of this bent part has dense fins, so that the drain water is sprayed vigorously. Even if it is, the outer box 1
No water will leak out of the 1.

In addition, since the slinger ring 21 provided on the propeller fan 16 is provided near the tip of the propeller fan 16 on the wind inlet side, even if the slinger ring 21 is brought close to the condenser 20, the wind inlet of the propeller fan 16 is closed. The side tip is the condenser 20
Stay away from.

The experimental results confirmed that the farther the wind inlet end of the propeller fan 16 is from the condenser 20, the lower the noise, so the air conditioner of this embodiment can achieve low noise.

As is clear from the description of the embodiments above, the water sprinkling device for the condenser of an air conditioner of the present invention includes a propeller fan within the main body of the air conditioner, and a water spray device located on the windward side of the propeller fan. A fin-pipe condenser bent into a substantially U-shape so as to face the front and side faces is disposed, and a substantially L-shaped cross section with the tip facing upwind is provided near the tip on the wind inlet side of the propeller fan. A slinger ring is provided, and the propeller fan and condenser are arranged such that the bent part of the condenser is located in the centrifugal direction of the slinger ring. Even though the slinger ring is installed, water can be sprinkled on the condenser and the heat exchange efficiency of the condenser can be improved. This is a bend, but since the density of the fins on the inner surface of this bend is high, water
It does not jump out of the outer box. In addition, the water does not hit the side of the outer box, and the condenser allows the intake air from the propeller fan to pass through the condenser, so noise can be kept low.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main parts of a conventional air conditioner, Figure 2 is a partially cutaway rear view of the same air conditioner, Figure 3 is a sectional view of the slinger ring, and Figure 4 is an implementation of the present invention. FIG. 5 is a horizontal cross-sectional view of an air conditioner equipped with a water sprinkling device for a condenser in an example, and FIG. 5 is a vertical cross-sectional view of the same air conditioner. 16...Propeller fan, 20...Condenser, 2
1...Slinger ring.

Claims (1)

[Scope of utility model registration request] A propeller fan and a fin-pipe condenser bent into a substantially U-shape are arranged on the windward side of the propeller fan and face the front and side surfaces of the propeller fan. , a slinger ring having a substantially L-shaped cross section with the tip facing upwind is provided near the tip of the propeller fan on the wind inlet side, and the propeller is arranged so that the bent part of the condenser is located in the centrifugal direction of the slinger ring. A water sprinkling device for the condenser of an air conditioner equipped with a fan and a condenser.