JPS6082038A - Outdoor unit motor - Google Patents

Abstract

PURPOSE:To reliably form a waterproofness in a motor of an outdoor unit by forming recesses on flanges of housings of the fan motor to be matched from the right and left sides, inserting a vibrationproof rubber into the recesses, integrally forming a vibrationproof rubber and a waterproof covering, and clamping them with the housings of the right and left sides. CONSTITUTION:The housing 9' of a fan motor is divided into right and left sides 9a', 9b', which are matched with screws at the flanges. Vibrationproof rubbers 12a are inserted into several screw portions of the flanges, annular waterproof covering 12 integrated with the rubbers 12a is interposed between the housings 9a', 9b' of the right and left sides, the screws 11 are inserted into holes 12b, clamped and secured. A drain hole 12c is formed at the lower portion, the housing 9b side projected from a rotational shaft 10 is curled outward, and covered on the curling portion with a waterproof ring 9f' rotating integrally with the shaft. Thus, the waterproof is reliably performed to prevent waterdroplets from entering the motor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a waterproof structure for a fan motor of a separate room air conditioner, and particularly to a waterproof structure suitable for a fan motor of an outdoor unit.

[Background of the invention]

Figures 1 to 6 about conventional fan motor waterproof structure
This will be explained using figures.

1 is the base, 2 is the upside-down outer box, and 3 is the right side plate.

4 is the left side plate, and these four parts are each screwed and fixed to form a box body. Furthermore, on the base 1 are the compressors 5 and 6.
7 cycle pipes for heat exchange and connecting these;
There are also 8 electrical items on display. Further, on the vertical surface of the outer box 2, a shutter 2a, a shutter 2C, a ring 2b connecting these shutters 2a and 2C, and a motor mounting leg 2d protruding inward are integrally formed. .

9 is the motor for the blower, the right housing of 9a, 9
The stator, rotor, bearings, etc. are housed inside the left housing 9b, and a hole 9C that protrudes outward is provided in the center of the left housing 9b.
The shaft that is fixed to Rogue protrudes from the top. 9
d is a sealing material sandwiched between the outer periphery flanges of the right housing 9a and the left housing 9b to prevent water from entering the inside of the motor 9. 9e is a vibration-proof rubber, and 9d is a waterproof ring that fits tightly to the shaft and rotates at the same time as the shaft. 10 is a fan for the blower; 11 is a vibration-proof rubber 90 attached to the motor 9;
This screw is used to screw the part into the motor mounting leg 2d part. Also, A in FIG. 5 represents rain water droplets, and the arrows indicate the direction of flow.

Due to the above structure, when it rains and falls on the motor 9, water droplets A enter the inside of the motor 9 through the hole 90 in the left housing, rusting the bearings and deteriorating the insulation. In addition, if the sealing material 9d of the 7th run part of the right housing 9a and left housing 9b is not applied uniformly during work, water droplets may enter, and the sealing material 9d is close to the stator and the temperature is high, and since it is crimped, the material deteriorates and takes a long time. During the period, there were defects such as water droplets entering.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a blower motor structure suitable for an outdoor unit of a Roux-French air conditioner, which has a long life and is free from water droplet infiltration.

[Summary of the invention]

For the blower motor of an outdoor unit for a room air conditioner, the hole in the housing from which the shaft protrudes is formed into a curling ring that curves outward, and the anti-vibration rubber and waterproof cover are made into an integral shape to match the 7-run part of the motor housing. The design uses an inverted structure to prevent water droplets from entering from the outside and to provide a long-life motor.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 7 to 9.

9aL is the right housing, 9b' is the left housing.

The right housing 9al and the left housing are matched with each other and house a stator, rotor, bearings, etc. therein. A hole for the shaft to protrude from the center of the left housing is provided, and the circumference of this hole is 9 c.
A curling part that curves outward is formed to prevent water droplets from entering. 9f' is a waterproof ring that is tightly attached to the shaft and rotates at the same time as the shaft.

12 is a waterproof cover for the right housing 9 aL of the motor 9
and the left housing 9b'.

Reference numeral 12a is made of anti-vibration rubber that matches the flange portion of the motor 9, and is formed integrally with the waterproof cover 12. Numeral 12b is a hole for screwing the motor 9 onto the motor mounting leg 2d with a screw 11, and is located at the center of the vibration isolating rubber 12a. 12C is a hole for draining water.

As explained above, the shaft penetration hole of the left housing 9b' is formed with a curled hole 9c' whose outer periphery is curved outward.
Since its outer part is covered with a waterproof ring that rotates at the same time as the shaft, water droplets will not enter the motor 9. Further, since the flanges of the right housing 9a' and the left housing 9b' are covered with a waterproof cover 12, no water droplets can enter. Furthermore, since a gap is provided between the waterproof cover 12 and the motor 9', there is little deterioration of the material due to heat and a long life can be maintained. Another good point is that since it is integrated with the vibration isolating rubber 12a or the waterproof cover 12, when the vibration isolating rubber 12 is attached, the waterproof cuff is also attached, making the work easier. Since the waterproof cover 12 is made of rubber, it can be formed directly and attached to the motor 9' by wrapping it around the motor 9', so the mold is inexpensive.

Furthermore, there are four drain holes 12C, two each on the left and right ends, so there is no need to worry about making a mistake in the work since the same condition will be obtained even if the drain holes are installed in the opposite direction.

〔Effect of the invention〕

According to the present invention, the waterproof cover of the blower motor of the room air conditioner outdoor unit and the anti-vibration rubber are integrally formed.
In addition, since a gap is provided between the waterproof cover and the motor, it is easy to install, can be reliably waterproofed, and has a long service life.

[Brief explanation of the drawing]

Figure 1 is an external view of the room air conditioner outdoor unit. Figure 2 is an exploded view of Figure 1. Figure 3 is a vertical sectional view of Figure 1. Figure 4 is a partial sectional view of a conventional motor. Figure 5 is an exploded view of Figure 1. 4 is an enlarged view of the waterproof portion of FIG. 4, FIG. 6 is an enlarged view of the flange connection portion of FIG. 4, FIG. 7 is a partial sectional view of the motor of the present invention, and FIG. 8 is a partially enlarged view of FIG. 7. 9 is a partially sectional right side view of FIG. 7. FIG. 1...Base, 2...Outer box, 2d...Motor mounting leg, 9...Motor, 9b'...Left housing,
90'... Curling hole, 12... Waterproof cover, 12
a... Anti-vibration rubber. 12b...hole, 12C...drain hole. Figure 1 Figure 2 Figure 3121 Figure 4 Figure 5121 Hayabusa Figure 6

Claims (1)

[Claims] 1. In a fan motor for a blower of a room air conditioner, etc., a flange portion is provided on the outer periphery of the housing so as to match from the left and right sides, several recesses are provided in a part of this flange portion, and the recesses are A motor for an outdoor unit, characterized in that vibration isolating rubber is fitted to cover the motor, and a portion of a waterproof cover connecting these vibration isolating rubbers is integrally formed with the vibration isolating rubber. 2. The motor for an outdoor unit according to claim 1, wherein a hole for draining water is provided in a lower portion of the waterproof cover. 3. The motor for an outdoor unit according to claim 2, wherein the hole provided in the housing of the protruding portion of the shaft is curled to the outside, and the curled portion is formed as a wide mouth portion.