TW201933727A - A symmetrical brushless with flat panel DC motor - Google Patents

Abstract

The symmetrical brushless with flat panel DC motor of the invention comprises a magnet part, a left and right magnet part fixed iron plates which are located on both sides of the magnet part, a left and right magnet rotary disc which is in the form of a disc The left and right magnet parts are fixed on the outer side of the iron plate, the center of the magnet part is provided with a bearing or a bearing and the outer circumference of the magnet part is provided with a plurality of coil protrusions on which the coil can be wound; a fixing seat used for fixing and carrying around A magnet rotating disk bearing, and an intelligent current supply device which supplies a current of a number of high-frequency discontinuities to the coil, whereby eddy-current loss can be avoided due to its coreless design and at the same time, through the smart current supply device To supply digital high-frequency discontinuities to generate the torque required to achieve both high-efficiency, high-torque and precise torque output and speed control, while at the same time significantly reducing manufacturing costs and saving energy.

Description

Symmetric brushless flat plate DC motor

The present invention relates to a DC motor, and in particular, to a method that can avoid eddy current loss and simultaneously supply digital high-frequency discontinuous current through an intelligent current supply device to generate the required torque, thereby achieving both Symmetric brushless flat-plate DC motor with high efficiency, high torque and precise control of torque output.

Electric motors (ie motors) are a major revolution in industrial technology, ranging from small watches and air-conditioning to cars and plant equipment. All of them see the existence of electric motors. Among the losses of the motor, eddy current loss is the most important, and it is unavoidable. The iron core is a conductor. Because of electromagnetic induction, the change of the magnetic field will induce the current circulating in the conductor, which is called eddy current. The eddy current is perpendicular to the magnetic field. The energy of the eddy current will be dissipated due to the resistance of the core material. The eddy current loss is proportional to the size of the current circulation area. Modern electric motors mainly use coils to increase their inductance and obtain large torque through large currents, but at the same time, they also increase eddy current loss and accelerate the loss of battery life, resulting in shortening their battery life. If they can have both torque, efficiency and life, it is extremely desirable Problem solved.

In view of the imperfections of the conventional electric motor, the inventor finally developed such a method that can avoid eddy current loss and supply digital high-frequency discontinuous current through an intelligent current supply device through continuous research and development for a long time. A symmetrical brushless flat-plate DC motor capable of achieving the required torque and capable of achieving both high efficiency, high torque and precise control of the torque output. The symmetrical brushless flat-plate DC motor of the present invention includes: a magnet portion ; A left and right magnet part fixed iron plate, which is located on both sides of the magnet part; a left and right magnet rotating disc, which is in the shape of a disk, is located outside the left and right magnet part fixed iron plate, and has a bearing in the center or connected with the bearing A plurality of coil protrusions are provided on the outer circumference of the coil, and the coil can be wound thereon; a fixed seat for fixing and carrying the bearings of the rotating disks of the left and right magnets; and an intelligent current supply device for supplying the coils Discontinuous current with digital high frequency. The main purpose of the symmetrical brushless flat-plate DC motor of the present invention is to avoid generating eddy current loss, and at the same time, to supply digital high-frequency discontinuous current through an intelligent current supply device to generate the required torque, so as to achieve both high Efficiency, high torque and precise control of torque output and speed, which can both reduce manufacturing costs and save energy. In order to make it easier for the examiner to understand the features of the present invention, please refer to the description of the embodiments of the present invention.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic diagram of the structure of the symmetrical brushless flat-plate DC motor of the present invention, and FIG. 2 is a schematic diagram of the left and right magnet rotating disks of the symmetrical brushless flat-plate DC motor of the present invention. A magnet part 10; a left and right magnet part fixed iron plate 11, which is located on both sides of the magnet part 10; a left and right magnet rotating disc 20, which is in the shape of a disc, is located outside the left and right magnet part fixed iron plate 11, and The center has a bearing 21 or is connected to the bearing 21, and a plurality of coil protrusions 22 are arranged on the outer circumference thereof, and the coil can be wound thereon; a fixing seat 30 is used for fixing and carrying the left and right magnet rotating disks 20 Bearing 21; and an intelligent current supply device, which supplies the coil with digital high-frequency discontinuous current; thereby, due to its coreless design, eddy current loss can be avoided, and at the same time, digital is supplied through the intelligent current supply device High-frequency discontinuous current to generate the required torque, which can achieve both high efficiency, high torque, and precise control of torque output and speed, and can greatly reduce manufacturing costs and save costs. Purpose. The inductive electromagnetic field generated by the digital high-frequency discontinuous current can drive the left and right magnet rotating discs to rotate, can accurately control the torque and speed, which can greatly reduce the manufacturing cost and achieve the purpose of energy saving. Its advantages are described as follows: 1. It can generate a left-right symmetrical closed rotary strong magnetic field. 2. The coreless coil generates a magnetic field to connect the left and right magnetic fields to form a strong magnetic field. 3. Improve the coil production method and greatly reduce production costs. 4. Discontinuous current is fed by digital high frequency, and large torque is generated by using the above power saving structure. The coreless coil is used to avoid eddy current loss. It is worth mentioning that the symmetrical brushless flat-plate DC motor of the present invention may further include a coil connection plate 40 which is arranged on the magnet rotating disk 20 to connect the coil. The coil on the protrusion 22. There are many implementation circuit structures of the intelligent current supply device. Generally, a digital pulse wave or a digital square wave is used to supply current, which is not described in detail here or in another drawing. The above is only a detailed description of the present invention through a preferred embodiment, but any modifications and changes made to the embodiment, such as the structure and material of the fixed seat, the circuit structure of the intelligent current supply device, etc. The spirit and scope of the present invention. From the above detailed description, those skilled in the art can understand that the present invention can indeed achieve the aforementioned purpose, and it has indeed complied with the provisions of the Patent Law, and filed an application for an invention patent in accordance with the law.

10‧‧‧Magnet

11‧‧‧ fixed iron plate on the left and right magnets

20‧‧‧ Left and right magnet rotating disk

21‧‧‧bearing

22‧‧‧ coil protrusion

30‧‧‧Fixed

40‧‧‧coil connection plate

Figure 1 is a schematic diagram of the structure of the symmetrical brushless flat-plate DC motor of the present invention. Figure 2 is a schematic diagram of the structure of the left and right magnet rotating disks of the symmetrical brushless flat-plate DC motor of the present invention.

Claims (2)

A symmetrical brushless flat-plate DC motor includes: a magnet portion; a fixed iron plate on the left and right magnet portions, which are located on both sides of the magnet portion; a left and right magnet rotating disk, which is in the shape of a disc and is located on the left and right sides. The magnet part is fixed on the outer side of the iron plate, and the center has a bearing or is connected to the bearing. A plurality of coil protrusions are arranged on the outer circumference of the coil, and the coil can be wound thereon. A fixing seat is used for fixing and carrying the left and right magnets. Bearings for rotating discs; and an intelligent current supply device that supplies digital high-frequency discontinuous current to the coil; thereby, due to its coreless design, eddy current losses can be avoided, and at the same time through the intelligent current supply device Supply digital high-frequency non-continuous current to generate the required torque, which can achieve both high efficiency, high torque and precise control of torque output and speed, and can both reduce manufacturing costs and save energy. The symmetrical brushless flat-plate DC motor according to item 1 of the scope of the patent application, which may further include a coil connection plate, which is arranged on the magnet rotating disk and is used to connect the coil on the coil protrusion.