JP2527293Y2 - Drain pump mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain pump mounting structure suitable for pumping drain collected in a drain pan of a ceiling-mounted air conditioner.

[0002]

2. Description of the Related Art An example of a conventional structure is shown in FIG. In FIG. 2, 1 is a drain pump and 2 is a motor. A rotor 8 is fixed to an output shaft 3 of the motor 2, and the output shaft 3 is supported by an upper case 4 and a lower case 5 above and below the rotor 8. The output shaft 3 penetrates through the lower case 5 and protrudes downward, and a protruding end thereof is connected to a rotation shaft 6 of the drain pump 1 via a coupling 7. An iron core 9 constituting a stator disposed around the rotor 8 is sandwiched from above and below by an upper case 4 and a lower case 5. It is fastened by a plurality of bolts 12 together with a stay 11 arranged below. This bracket 10 is attached to the bracket
14 is fastened by bolts 15. And stay
An upper housing 16 and a lower housing 17 of the drain pump 1 are fastened to the lower end of the drain pump 11 by bolts 18. A housing 19 composed of an upper housing 16 and a lower housing 17 has a suction port 20 at its lower part,
A discharge port 21 is provided at the upper part. And this housing
Inside 19, an impeller 22 connected to the rotating shaft 6 is rotatably supported.

When the motor 2 is driven, the impeller 22 is driven through the output shaft 3 and the rotating shaft 6 of the drain pump 1.
Rotates. Then, the drain flows from the suction port 20 to the housing.
After being sucked into 19 and urged by the impeller 22, it is discharged from the discharge port 21 and discharged through a drain pipe (not shown).

[0004]

In the above-mentioned conventional structure, a nonmagnetic material is provided between the iron core 9 and the vibration isolating rubber 13 in order to prevent magnetic leakage from the iron core 9 of the motor 2. Metal fittings
There were 10 intervening. Therefore, there is a problem that the cost increases because the metal fitting 10 and parts such as the bolts 12 and 15 for mounting the metal fitting 10 and the man-hour for mounting the same are required.

[0005]

SUMMARY OF THE INVENTION The present invention has been devised to solve the above-mentioned problems, and the gist of the invention is that a vibration-proof rubber made of a plurality of non-magnetic materials is provided on a bracket for mounting a drain pump. The stepped bolt is installed through the through hole of the vibration-proof rubber, the stator of the motor that drives the drain pump is mounted below the stepped bolt, and the stepped bolt that passes through the stator is mounted. A drain pump mounting structure characterized in that a stay is attached to a lower end, and the drain pump is mounted to the stay.

[0006]

In the present invention, the motor is elastically supported by the bracket via the vibration isolating rubber, and magnetic leakage from the iron core constituting the stator is made of a non-magnetic material. Blocked by rubber dampers.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIG. An anti-vibration rubber 31 made of a non-magnetic material is installed on the upper case 4 of the motor 2. And the tip thread portion 30a is screwed and fastened to the upper portion of the stay 11. The anti-vibration rubber 31 is fixed by engaging with the bracket 14. The stepped portion 30b of the stepped bolt 30 comes into contact with the upper surface of the upper case 4, so that the upper case 4, the iron core 9 and the lower case 5 are firmly tightened. The other configuration is the same as that of the conventional one shown in FIG. 2, and corresponding members are denoted by the same reference numerals.

[0008] The stator of the motor 2 is made of a vibration-proof rubber.
It is elastically supported by the bracket 14 via 31 and magnetic leakage from the iron core 9 is prevented by the vibration-proof rubber 31 made of non-magnetic material. Therefore, the conventional metal fitting 10 is not required, and the anti-vibration rubber 31, the upper case 4, the iron core 9,
Since the lower case 5 and the stay 11 are fastened, the conventional bolts 12 and 15 become unnecessary.

[0009]

According to the present invention, the motor and the drain pump can be positioned by one stepped bolt, and these can be attached to the bracket via a vibration-proof rubber made of a non-magnetic material. Since the anti-vibration rubber made of a non-magnetic material is interposed between the stator of the motor and the bracket, the motor can be elastically supported on the bracket via the anti-vibration rubber, and magnetic leakage from the iron core constituting the stator can be achieved. Can be prevented by an anti-vibration rubber made of a non-magnetic material. Thus, the conventional metal fittings made of non-magnetic material are not required, and the fixtures and man-hours for the fittings can be omitted. Therefore, not only can the cost be reduced, but also the structure is simplified, and the size and size are reduced.
Can be lightweight.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a conventional structure.

[Explanation of symbols]

 1 Drain pump 2 Motor 9 Stator 14 Bracket 31 Anti-vibration rubber

Claims (1)

(57) [Scope of request for utility model registration] An anti-vibration rubber made of a plurality of non-magnetic materials is mounted on a bracket for mounting a drain pump, and a stepped bolt is installed through a through hole of the anti-vibration rubber, and the drain pump is provided below the stepped bolt. A stator for a motor that drives the motor, a stud is attached to a lower end of the stepped bolt that penetrates the stator, and the drain pump is attached to the stay.