JPS6230659Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a separate air conditioner, and particularly to an air leakage prevention device for an outdoor unit thereof.

In recent years, as the prevalence of room air conditioners has increased, the locations where outdoor units can be installed have become more diverse, and it has become necessary to diversify the installation methods. In response to such demands, many outdoor units have been constructed as shown in FIG.

In FIG. 1, reference numeral 1 denotes an outdoor unit body which is divided into a compressor chamber 2 and a heat exchanger chamber 3. 4
5 is a blower, and 5 is an air suction port provided on the left side of the main body 1, which is also provided on the rear surface 7 and the upper and lower surfaces. Reference numeral 8 denotes a plate-fin heat exchanger, which is arranged on the rear surface of the heat exchanger chamber 3 of the main body 1. A heat exchanger 9 is formed by winding a plurality of spine fins having a large number of needle fins into a cylindrical shape, and is arranged to surround the blower 4 and cover its outer periphery.

In the outdoor unit 1 configured in this manner, the spine-fin heat exchanger 9 wound into a cylindrical shape has a step at the end of the winding due to its structure, and the spine-fin heat exchanger 9 is directly attached to the plate-fin heat exchanger 8. In this case, a triangular gap 10 was created and suction air entered through the gap 10, which made it necessary to cover it with an inclusion to reduce the efficiency of the heat exchanger. Furthermore, when attaching the electric blower 11 to the motor mounting plate 6, it was necessary to pass the lead wire 12 of the motor through the triangular gap 10 due to the structure of the unit. Therefore, as a countermeasure to the above-mentioned problem, a wind leakage prevention device as shown in FIG. 2 has been conventionally provided. In the figure, 13 is a windbreak wall formed in a triangular shape according to the stepped shape of the spine-fin heat exchanger 9 so as to close the triangular gap 10, 14 is a reinforcing rib, and 15 is a lead wire 1 of the electric motor.
It has a semicircular shape at the second entrance. Reference numeral 16 denotes a mounting foot that locks the windbreak wall so as to grip the hairpin 17 of the plate fin heat exchanger 8.

In the conventional air leakage prevention device configured as described above, when inserting the mounting foot toward the hairpin from between the fins of the plate-fin heat exchanger, the distance between the fins is narrow, and the position of the mounting foot and hairpin is Because it was difficult to understand, it was difficult to properly engage the mounting feet, and there was also a lateral positional shift, making it impossible to properly close the triangular gap in the spine-fin heat exchanger, resulting in poor workability. Also, when passing the lead wire of the blower motor through the passageway provided in the air leakage prevention device, the operator must hold the lead wire with one hand and use the other hand to confirm that the lead wire is stuck in the passageway before installation. The work was very inefficient as it was difficult to insert the foot into the hairpin.

This invention was made in order to eliminate the above-mentioned drawbacks, and aims to provide a wind leakage prevention device in which the mounting position of the wind leakage prevention device is easy to understand and the installation work is easy.

One embodiment of this invention will be explained with reference to the drawings. Figures 3 and 4 show the wind leakage prevention device 24 of the invention.
Reference numeral 18 denotes a windbreak wall, which is shaped to close the triangular gap 10 created by the step at the end of the winding of the spine-fin heat exchanger 9. Numeral 19 is a reinforcing rib, and 20 is a passageway for the lead wire 12 of the motor, and a plurality of ribs 21 whose directions are alternately changed are provided to prevent the lead wire 12 from coming off. Reference numeral 22 denotes a mounting foot, which is formed by a pair of an upper mounting foot 22a and a lower mounting foot 22b, each of which has a semicircular shape facing each other so as to grasp the upper and lower hairpins 17, and the lower mounting foot 22b
It has a feed guide rib 23 to facilitate fitting into the hairpin 17. Further, the pair of mounting legs 22 are formed to engage with the neck portion 17a of the hairpin 17 exposed from the end surface of the plate-fin heat exchanger 8.

In the wind leak prevention device configured in this way, first the upper mounting leg 22a is hooked between the end face of the plate fin heat exchanger 8 and the neck 17a of the hairpin 17, and then the lower mounting leg 22b is pressed down from above. Feed guide rib 23 on hairpin 17
The lower mounting foot 22b is connected to the hairpin 1.
7, the installation of the wind leakage prevention device 24 is completed. Next, the lead wire 12 of the electric motor is passed through the rib 21 provided in the passageway 20, and then the spine fin heat exchanger 9 is attached to complete the work.

As explained above, according to this invention, the upper mounting leg 22a is easily attached by simply hooking it onto the hairpin 17 and pressing it down from above, and the left and right positioning is also exposed from the end surface of the plate fin heat exchanger 8. Since the mounting foot 22 is inserted into the neck portion 17a of the hairpin 17, the position is automatically determined.
In addition, after installing the wind leak prevention device 24 first, in order to pass the lead wire 12 of the electric motor through the passageway 20, confirm that the lead wire 12 is fitted into the passageway 15 as in the conventional method, and then insert the mounting foot. The work efficiency is greatly improved since the above-mentioned work is eliminated. Also, since the position is definitely determined, the triangular gap 10
It is also possible to prevent wind leakage due to insufficient protection, which has a great practical effect.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a wind leakage prevention device for an air conditioner, Fig. 2 is an exploded perspective view showing a conventional wind leakage prevention device, and Fig. 3 is a diagram showing a wind leakage prevention device for an air conditioner according to the present invention. The front view and FIG. 4 are side views of FIG. 3. 8 is a plate fin heat exchanger, 9 is a spine fin heat exchanger, 10 is a triangular gap, 12 is a lead wire, 17 is a hairpin, 17a is the neck of the hairpin, 18 is a windbreak wall, 19 is a reinforcing rib, 20 is a passage 21 is a rib, 22 is a mounting foot, 22a is an upper mounting foot, 22b is a lower mounting foot, 23 is a feed guide rib, and 24 is a wind leak prevention device. The same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] (1) In the air leak prevention device 24 of an outdoor unit that combines the plate-fin heat exchanger 8 and the spine-fin heat exchanger 9, the hairpin exposed from the end face of the plate-fin heat exchanger 8 is neck 17
A pair of upper and lower semicircular mounting feet 2 that fit into a.
2, and the lower mounting foot 22b includes a feeding guide rib that serves as a guide when inserting the hairpin 17, and a windbreak wall formed in a triangular shape corresponding to the triangular gap 10 of the winding end step of the spine fin heat exchanger 9. A wind leakage prevention device for an air conditioner, which is characterized by: (2) A passage opening 15 is provided perpendicularly to the windbreak wall so that the lead wire 12 of the blower motor 11 can be inserted therethrough, and a plurality of ribs 21 are provided in this passage opening in alternating directions facing each other. A wind leakage prevention device for an air conditioner as set forth in claim 1 of the utility model registration claim.