Submerged motor

Abstract

A submerged motor includes a housing, a barrel-like axle holder, which is affixed to the inside of the housing and holds a winding around a tubular axle thereof, and a vane holder, which is pivotally capped on the barrel-like axle holder, having a shaft extending from one side and pivotally supported in the tubular axle of the barrel-like holder, magnets equiangularly arranged outside the barrel-like axle holder corresponding to the winding, and a vane disposed outside the housing for moving water to produce air bubbles upon connection of electricity to the winding.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a submerged motor and more particularly, to a power-saving, high-speed, high output, low-noise, compact-size submerged motor.

2. Description of the Related Art

A conventional submerged motor for use in an aquarium, as shown in FIG. 1, comprises a housing 11, which defines therein a chamber 11 that accommodates a shaft 12. The shaft 12 has a vane 13 provided at the front end thereof. A winding 14 is mounted in the housing 11 around the chamber 11. A cylindrical magnet 15 is fixedly connected to the rear end of the shaft 12 and accommodated in the chamber 11. By means of induction between the winding 14 and the cylindrical magnet 15, the shaft 12 is caused to rotate the vane 13 in moving water in the aquarium to produce air bubbles. This design of submerged motor is functional, however it consumes much electric energy and causes vibration and noise during operation. Further, this design of submerged motor has a huge size. The low revolving speed of this design of submerged motor does not satisfy the demand.

SUMMARY OF THE INVENTION

The present invention has been accomplished under the circumstances in view. It is therefore the main object of the present invention to provide a power-saving, high-speed, high output, low-noise, compact-size submerged motor.

To achieve this and other objects of the present invention, the submerged motor comprises a housing, the housing defining an accommodation chamber; a barrel-like axle holder fixedly mounted inside the accommodation chamber of the housing, the barrel-like axle holder having an axially extending tubular axle; a winding sleeved onto the tubular axle and fixedly positioned inside the barrel-like axle holder; and a vane holder capped on one end of the barrel-like axle holder, the vane holder having a shaft rotatably inserted into the tubular axle of the barrel-like axle holder, a plurality of magnets equiangularly provided at a first side thereof and adapted to act with the winding for causing the vane holder to rotate relative to the barrel-like axle holder, and a vane fixedly provided at a second side thereof and disposed outside the barrel-like axle holder and the housing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of a submerged motor according to the prior art.

FIG. 2 is an exploded view of a submerged motor according to the present invention.

FIG. 3 is an exploded view in an enlarged scale of a part of FIG. 2.

FIG. 4 is a sectional assembly view of the submerged motor according to the present invention.

FIG. 5 is a schematic drawing showing the submerged motor in operation according to the present invention.

FIG. 6 is an exploded view of an alternate form of the submerged motor according to the present invention.

FIG. 7 is an exploded view of another alternate form of the submerged motor according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 2˜4, a submerged motor in accordance with the present invention is shown comprising a housing 2. The housing 2 has an accommodation chamber 21, and a water outlet pipe 22 in communication with the accommodation chamber 21 at the top side. A barrel-like axle holder 23 and a vane holder 24 are pivotally mounted in the accommodation chamber 21. The barrel-like axle holder 23 has a tubular axle 25 axially suspending on the inside. A winding 26 is sleeved onto the tubular axle 25 and affixed to the inside of the barrel-like axle holder 23.

The vane holder 24 is shaped like a round cap, having an endless groove 241 disposed at one side, a plurality of magnets 27 equiangularly and fixedly mounted in the endless groove 241, a shaft 28 axially extending from the other side thereof, and a vane 29 fixedly provided at the other side.

The shaft 28 of the vane holder 24 is inserted into the tubular axle 25 of the barrel-like axle holder 23 and locked thereto with a fastening member 30, keeping the vane holder 24 capped on the barrel-like axle holder 23. Thereafter, the barrel-like axle holder 23 is affixed to the inside of the accommodation chamber 21 of the housing 2, and then a water guide 31 and a front cap 32 are fastened to the front open side of the accommodation chamber 21 of the housing 2. By means of induction between the winding 26 and the magnets 27 upon transmission of electricity to the winding 26, the vane holder 24 is rotated, causing the vane 29 to move water in producing air bubbles.

Referring to FIG. 5, after installation, the vane holder 24 is capped on the barrel-like axle holder 23, holding the magnets 27 around the winding 26. By means of induction between the winding 26 and the magnets 27, the vane 29 is rotated with the vane holder 24 at a high speed.

FIGS. 6 and 7 show two different alternate forms of the submerged motor according to the present invention. These two alternate forms are substantially similar to the aforesaid first embodiment with the exception that the embodiment of FIG. 6 uses a radial fan blade assembly 33 to substitute for the aforesaid vane 29; the vane 34 used in the embodiment of FIG. 7 has the blades smoothly arched in axial direction.

Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention.

Claims

1. A submerged motor comprising: a housing, said housing defining an accommodation chamber; a barrel-like axle holder fixedly mounted inside said accommodation chamber of said housing, said barrel-like axle holder having an axially extending tubular axle; a winding sleeved onto said tubular axle and fixedly positioned inside said barrel-like axle holder; and a vane holder capped on one end of said barrel-like axle holder, said vane holder having a shaft rotatably inserted into said tubular axle of said barrel-like axle holder, a plurality of magnets equiangularly provided at a first side thereof and adapted to act with said winding for causing said vane holder to rotate relative to said barrel-like axle holder, and a vane fixedly provided at a second side thereof and disposed outside said barrel-like axle holder and said housing.

2. The submerged motor as claimed in claim 1, further comprising connector means to secure said shaft to said tubular axle for allowing rotation of said shaft in said tubular axle.