CN112104135A - Outward-rotating efficient motor and fan applying same - Google Patents

Abstract

The invention discloses an external rotation efficient motor, which comprises an aluminum integrally-formed motor fixing base, a motor fixing base and a motor rotating mechanism, wherein the motor fixing base comprises a disc-shaped base body and a protruding inner shaft column; the motor also comprises an iron motor outer rotating shell, a motor shaft and an annular permanent magnet ring which are fixed on the iron motor outer rotating shell; the soft iron core with the copper coil winding is fixed on the inner shaft column, the motor fixing base is fixed to enable the motor outer rotating shell to rotate, the self-innovation outer rotor motor is ingenious and reasonable in overall structure, the problems that the traditional motor is low in energy efficiency ratio and poor in matching degree are solved, and the energy efficiency of a fan using the motor is improved by 2-3 times compared with that of a conventional fan. The product can make up the defects of the existing product and can generate better economic benefit.

Description

External rotation high-efficiency motor and fan using the motor

technical field

The invention relates to a novel motor structure, belongs to the field of electrical appliances, and more particularly relates to an externally rotating high-efficiency motor and a fan applying the motor.

Background technique

The traditional motor, due to structural design problems, has an unreasonable structure, and it is difficult to guarantee the radial and axial fit of the shaft. Therefore, the overall performance and energy consumption ratio of the fan using the motor are also reduced. Therefore, the above problems existing in the existing motor and fan need to be improved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide an externally rotating high-efficiency motor and a fan using the same. , to ensure the performance of the motor, the fan using this motor, its energy efficiency is 2-3 times higher than that of conventional fans, and under the premise of the same input power, the fan speed is increased by 2-3 times, which greatly meets the current needs of environmental protection and energy saving.

The technical solution adopted by the present invention to solve the technical problem is: externally rotating a high-efficiency motor, including a motor fixing base and a motor outer rotating casing movably connected with the motor fixing base, wherein:

——The motor fixing base is integrally formed of aluminum, including a dish-shaped base base, an inner shaft column with a hollow hole is erected in the center of the dish-shaped base base, and a concave ring groove-shaped upper part is arranged at the top of the inner shaft column. The bearing groove corresponds to the projection of the upper bearing groove on the outside of the base body, and there is a concave ring groove-shaped lower bearing groove. The base body is also provided with a motor fixing screw hole with an internal thread through hole for connecting the motor fixing bolt. The base body is also provided with a through hole for passing through the wire hole of the motor wire;

——The outer rotating shell of the motor is an inverted cup-shaped iron shell, and a circular concave inner convex plate is punched inward from the middle of the top surface of the iron shell, and the middle of the bottom plane of the inner convex plate is outward. A cylindrical shaft fixing ring protruding outward is punched out, and a motor shaft is fixed on the shaft fixing ring. Of course, the upper end of the motor shaft can be flush with the upper end surface of the shaft fixing ring, and a plurality of belts are arranged on the top surface of the iron shell. The fan blade fixing hole with internal thread, so that the fan blade with the inverted bowl-shaped mounting head can be installed or the fan blade can be directly fixed to the fan blade fixing hole; the motor shaft can also pass through the iron shell, and the fan blade can be installed on the motor shaft Protruding top, so it can be applied to the traditional fan blade installation. A plurality of permanent magnet rings are arranged around the inner wall of the iron shell to form a circular permanent magnet coil; a soft iron core with a plurality of coil winding slots is arranged in the middle of the permanent magnet coil, and the soft iron core has a cylindrical hollow hole. The soft iron core is wound with copper coil windings corresponding to the number of coil winding slots, and the outer rotating shell of the motor with the iron casing with permanent magnet coils is used as the rotating part. The rotation is smoother, and with the reasonable adjustment of the power electronic control program, the advantages of inertial kinetic energy can be better utilized, and the energy efficiency ratio of the whole machine can be greatly improved.

——The soft iron core with copper coil winding is fixedly fitted to the inner shaft column of the motor fixed base through the hollow hole, the upper bearing is fixedly installed in the upper bearing slot, and the lower bearing is fixedly installed in the lower bearing slot,

——A washer is sleeved on the motor shaft, the washer fits the bottom surface of the inner convex plate of the outer rotating shell of the motor, the bottom end of the motor shaft has a slot with an annular pit, and the lower end of the motor shaft passes through the inner shaft column of the motor fixing base. The hollow hole extends out of the lower bearing, and the bottom of the lower bearing is provided with a shaft snap ring for engaging the motor shaft snap groove.

Further, the upper periphery of the inner shaft column of the motor fixing base is provided with hob grooves, so that the soft iron core can be more stably and firmly combined with the motor fixing base, and the stability of the whole product can be improved.

The invention relates to a fan using the above-mentioned motor. The fan blade is fixedly mounted on an inverted bowl-shaped mounting head, the upper end of the motor shaft is flush with the upper end face of the shaft fixing ring, and a plurality of internal threads are arranged on the top surface of the iron shell. Fan blade fixing hole, the inverted bowl-shaped mounting head is sleeved on the iron casing, and there is a corresponding fan blade fixing hole to fix the inverted bowl-shaped mounting head to the fan blade fixing screw of the iron casing, so tighten the fan blade fixing screw. The fan blade can be installed and fixed on the motor.

In addition, the motor shaft can also pass through the iron casing, and the top of the passing shaft is provided with a fan blade fixing groove. The blade fixing groove is provided with a lateral through hole, and the fan blade installation screw is screwed into the lateral through hole and the fan blade is fixed to the motor shaft, which can be applied to the traditional fan blade installation method.

To sum up, the externally rotating high-efficiency motor and the fan applying the motor of the present invention adopt the independent innovative external rotor structure, solve the problems of low energy efficiency ratio and poor coordination of traditional motors, ensure the performance of the motor, and compare the energy efficiency of the motor Conventional motors are 2-3 times higher. This product can make up for the insufficiency of the existing products, and will definitely produce better economic benefits.

Description of drawings

Shown in FIG. 1 is the overall schematic diagram of the external rotation high-efficiency motor of the present invention and the fan applying the motor;

Fig. 2 is the exploded schematic diagram of the external rotation high-efficiency motor of the present invention and the fan applying the motor;

Fig. 3 is the sectional schematic diagram of the outer rotating shell of the motor;

Fig. 4 is the assembly schematic diagram of the external rotation high-efficiency motor of the present invention and the fan applying the motor;

FIG. 5 is an exploded schematic view of Embodiment 2 of an externally rotating high-efficiency motor and a fan using the motor according to the present invention.

Detailed ways

Example 1

The externally rotating high-efficiency motor described in this embodiment 1, as shown in Figures 1-4, includes a motor fixing base 1 and a motor outer rotating casing 2 movably connected to the motor fixing base, wherein:

——The motor fixing base is integrally formed of aluminum, including a dish-shaped base base 16, an inner shaft column 11 with a hollow hole is erected in the center of the dish-shaped base base, and a concave ring groove is arranged at the top of the inner shaft column. The upper bearing groove 14 corresponding to the projection of the upper bearing groove on the outside of the base base is provided with a concave ring groove-shaped lower bearing groove 15, and a motor fixing screw with an internal thread through hole for connecting the motor fixing bolt is also provided on the base base. Hole 13, a through hole is also provided on the base body for threading hole 12 for passing the motor wire;

——The outer rotating shell of the motor is an inverted cup-shaped iron shell, and a circular concave inner convex plate 21 is punched inward from the middle of the top surface of the iron shell, and faces the middle of the bottom plane of the inner convex plate. A cylindrical shaft fixing ring 22 protruding outward is punched out, and a motor shaft 3 is fixed on the shaft fixing ring. The upper end of the motor shaft is flush with the upper end surface of the shaft fixing ring, and a plurality of belts are arranged on the top surface of the iron shell. The fan blade fixing hole 23 with internal thread, so that the fan blade with the inverted bowl-shaped mounting head can be installed or the fan blade can be directly installed and fixed in the fan blade fixing hole; a plurality of permanent magnet rings 4 are arranged around the inner wall of the iron shell to form a circle Ring-shaped permanent magnet coil; a soft iron core 5 with a plurality of coil winding slots is arranged in the middle of the permanent magnet coil, the soft iron core has a cylindrical hollow hole, and a copper coil corresponding to the number of coil winding slots is wound on the soft iron core winding 6;

——The soft iron core with copper coil winding is fixedly fitted to the inner shaft column of the motor fixed base through the hollow hole, the upper bearing 7 is fixedly installed in the upper bearing groove, and the lower bearing 8 is fixedly installed in the lower bearing groove,

——The washer 9 is sleeved on the motor shaft, the washer fits the bottom surface of the inner convex plate of the outer rotating shell of the motor, the bottom end of the motor shaft has a slot 31 with an annular pit, and the lower end of the motor shaft passes through the inner shaft of the motor fixing base The hollow hole of the column extends out of the lower bearing, and the bottom of the lower bearing is provided with a shaft snap ring 10 for engaging the motor shaft snap groove.

Example 2:

This embodiment is modified on the basis of Embodiment 1, as shown in Figure 5, wherein the motor shaft 3 passes through the iron casing, and the top of the passing shaft is provided with a fan blade fixing groove 25 for the convenience of fan blade installation On the protruding top of the motor shaft, it is suitable for the traditional motor installation method; in addition, the upper periphery of the inner shaft column of the motor fixing base is provided with a hob groove pattern 17, so that the soft iron core can be more stably and firmly connected to the motor. The fixed base is fixedly combined to improve the stability of the overall product.

Example 3:

This embodiment is combined with the motor-mounted fan blade of the first embodiment to form the fan of the present invention. As shown in FIG. 2 , the fan blade 28 is fixedly mounted on an inverted bowl-shaped mounting head 29, and the upper end of the motor shaft and the upper end surface of the shaft fixing ring It is flat, and there are multiple fan blade fixing holes with internal threads on the top surface of the iron casing. The inverted bowl-shaped installation head is sleeved on the iron casing, and there are corresponding fan blade fixing holes to fix the inverted bowl-shaped installation head. The fan blade fixing screw 24 on the iron casing, the fan blade can be installed and fixed on the motor by tightening the fan blade fixing screw into the fan blade fixing hole 23 in this way.

Example 4:

This embodiment combines the motor-mounted fan blades of the second embodiment to form the fan of the present invention. As shown in FIG. 5 , the motor shaft passes through the iron casing, and the top of the shaft is provided with a fan blade fixing groove 25, and the fan blade is fixed On the fan blade installation cylinder seat with the corresponding sleeve into the motor shaft, the fan blade installation cylinder base is provided with a transverse through hole 26 corresponding to the fan blade fixing groove, and the fan blade installation screw 27 is screwed into the transverse through hole and the fan blade is fixed to the motor. shaft, so it can be applied to the traditional fan blade installation method.

The above descriptions are only preferred embodiments of the present invention, and do not limit the structure of the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (6)

1. The high-efficiency motor of external rotation and the fan applying the motor, including the motor fixing base and the motor outer rotating casing movably connected with the motor fixing base, are characterized in that: The motor fixing base is integrally formed of aluminum, including a dish-shaped base base, an inner shaft column with a hollow hole is erected in the center of the dish-shaped base base, and a concave ring groove-shaped upper bearing groove is arranged at the top of the inner shaft column. , corresponding to the projection of the upper bearing groove on the outside of the base base, there is a concave ring groove-shaped lower bearing groove, and the base base is also provided with a motor fixing screw hole with an internal thread through hole for connecting the motor fixing bolt, on the base base There is also a through hole for passing out the wire hole of the motor wire; The outer rotating casing of the motor is an inverted cup-shaped iron casing. A circular concave inner convex plate is punched inward from the middle of the top surface of the iron casing, and is punched out from the middle of the bottom plane of the inner convex plate. A cylindrical shaft fixing ring protruding outward is fixed on the shaft fixing ring and a motor shaft is arranged; a plurality of permanent magnet rings are arranged around the inner wall of the iron shell to form an annular permanent magnet ring; a belt is arranged in the middle of the permanent magnet ring A soft iron core with a plurality of coil winding slots, the soft iron core has a cylindrical hollow hole, and copper coil windings corresponding to the number of coil winding slots are wound on the soft iron core; The soft iron core with copper coil winding is fixedly fitted to the inner shaft column of the motor fixed base through the hollow hole, the upper bearing is fixedly installed in the upper bearing slot, and the lower bearing is fixedly installed in the lower bearing slot; A washer is sleeved on the motor shaft, the washer fits the bottom surface of the inner convex plate of the outer rotating shell of the motor, the bottom end of the motor shaft is provided with a groove of an annular concave, and the lower end of the motor shaft passes through the hollow hole of the inner shaft column of the motor fixing base The lower bearing extends out, and a shaft snap ring for engaging the motor shaft snap groove is arranged at the bottom of the lower bearing. 2. The externally rotating high-efficiency motor and the fan using the same according to claim 1, wherein the upper end of the motor shaft is flush with the upper end face of the shaft fixing ring, and a plurality of internal threads are arranged on the top surface of the iron casing The fan blades are fixed. 3. The externally rotating high-efficiency motor and the fan using the same according to claim 1, wherein the motor shaft passes through the iron casing. 4 . The high-efficiency motor for external rotation and the fan using the motor according to claim 1 , wherein the upper peripheral part of the inner shaft column of the motor fixing base is provided with hob grooves. 5 . 5. A fan using the motor described in claim 1, 2 or 4, wherein the fan blade is fixedly mounted on an inverted bowl-shaped mounting head, the upper end of the motor shaft is flush with the upper end face of the shaft fixing ring, and is fixed on the iron The top surface of the shell is provided with a plurality of fan blade fixing holes with internal threads, the inverted bowl-shaped mounting head is sleeved on the iron shell, and there are corresponding fan blade fixing holes to fix the inverted bowl-shaped mounting head on the iron shell fan blade fixing screws. 6. A fan applying the motor described in claim 1, 3 or 4, characterized in that: the motor shaft passes through the iron casing, and the top of the shaft is provided with a fan blade fixing groove, and the fan blade is fixed on the belt corresponding sleeve. On the fan blade installation cylinder seat which is inserted into the motor shaft, the fan blade installation cylinder base is provided with a lateral through hole corresponding to the fan blade fixing groove, and the fan blade installation screw is screwed into the lateral through hole and the fan blade is fixed to the motor shaft.

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