CN2313328Y

CN2313328Y - Vibration motor

Info

Publication number: CN2313328Y
Application number: CN 97224607
Authority: CN
Inventors: 李效韩; 李岳; 李彬
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-17
Filing date: 1997-08-17
Publication date: 1999-04-07
Anticipated expiration: 2007-08-17

Abstract

The utility model is a vibration motor which converts AC electric energy into vibration mechanical energy. The utility model belongs to a moving magnet vibration motor. A rare earth permanent magnet is installed on the drive shaft of the mover, and a three-phase winding coil is inlaid on the stator of the silicon steel sheet. When the three-phase alternating current is input into the stator coil, the drive shaft will generate exciting vibration. Force, the vibration frequency of the drive shaft is equal to the frequency of the input three-phase alternating current. The three-phase stator coil of the vibrating motor can use the frequency converter as the power supply and controller or directly use the three-phase power supply as the power supply, so it has high efficiency, low cost, convenient control, low frequency up to 0.2Hz, and exciting force Large, it can be made into a high-power vibration motor above 10KW.

Description

Vibrating motor

The utility model is a kind of vibrating motor that AC energy is converted to vibration mechanical energy.

This vibrating motor belongs to the moving-magnetic type vibrating motor, fixed permanent magnet on driving shaft, alternating current by certain frequency in the coil of stator winding, produce alternating magnetic fields, alternating magnetic fields and permanent magnet interact, on driving shaft, produce the actuating force of alternation, make the driving shaft double vibrations.In " oscillating motor " book of Beijing Publishing House's publication in 1991, chapter 5 has been introduced the moving-magnetic type vibrating motor.Fix a permanent magnet on the driving shaft of vibrating motor, stator winding is one group of single phase winding, provides single-phase alternating current as power supply by power amplifier.This power supply cost is higher, and this single-phase winding can not directly connect the three-phase electrical source of power and constitutes powerful 50Hz vibrating motor.For single-phase bobbing machine is controlled, must connect controller in addition.

The purpose of this utility model is that a kind of moving-magnetic type vibrating motor with three-phase winding coil will be provided, and it can use variable-frequency governor as power supply and controller, or directly with three-phase power electricity as power supply, can manufacture powerful vibrating motor.

The purpose of this utility model is achieved in that installs rare-earth permanent magnet as mover on driving shaft, in the stator that constitutes by silicon sheet core, each damascene wiring of the upper and lower of its inner chamber, per three coils are one group, the coil in the centre of every group of coil and other two coils are anti-phase, the upper coil of stator silicon sheet core inner chamber is connected in series respectively with lower coil, constitute the three-phase winding coil, when they connect three-phase alternating current, in the inner chamber of stator core, produce the sinusoidal alternating electromagnetic field, interact with the rare-earth permanent magnet of mover, on driving shaft, produce the actuating force of sinusoidal alternating, make the driving shaft double vibrations.

The utility model is because adopted the threephase stator winding coil, so it can be connected with three-phase output end of variable-frequency governor, make it accept the electric current of variable-frequency governor output, vibration frequency can change between 0.2Hz to 400Hz, can also pass through variable-frequency governor, the peak swing of vibrating motor and the size of exciting force are controlled.The price of variable-frequency governor is 1/3rd of an amplifier only, and microprocessor is housed in the frequency converter, can programme vibrating motor is controlled.

The utility model is because adopted the mover of rare-earth permanent magnet, and the volume and weight that has therefore alleviated it has improved its efficient.The utility model can also directly be connected with the three-phase electrical source of power, constitutes the vibrating motor of 50Hz, can make the above high-power vibrating motor of 10KW.

The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.

Accompanying drawing is the profile according to the vibrating motor that the utility model proposes.

Illustrate according to concrete structure system and the operation principle that the utility model proposes below in conjunction with the accompanying drawing detail.

This structural system is dimeric, i.e. the mover of vibrating motor and stator.Mover comprises driving shaft (12), top board (7), rare-earth permanent magnet (6), lower platen (5).Stator pack vinculum circle (2) (3) (4) (8) (9) (10) (14) (15) (16) (19) (20) (21), silicon sheet core (18).Between mover and the stator is to be connected with upper spring (11) by lower spring (1).

Stator coil (8) (10) (14) (16) is homophase mutually, and coil (9) (15) is anti-phase with coil (8), and coil (2) (4) (19) (21) is anti-phase with coil (8), coil (3) (20) and coil (8) homophase.(8) (4) coil series connection, the series connection of (9) (3) coil, the series connection of (10) (2) coil, the series connection of (14) (21) coil, the series connection of (15) (20) coil, the series connection of (16) (20) coil, stator coil and binding post (17) are linked to be three-phase circuit.When at three-phase terminal (17) input three-phase alternating current, in the inner chamber of stator silicon sheet core (18), form the blow-up varying magnetic field, unidirectional alternating magnetic field in the stator and mover rare-earth permanent magnet interact, on driving shaft (12), the actuating force of alternation will be produced, make the direction upper and lower vibration of driving shaft (12) along (13), the frequency of driving shaft (12) up-down vibration equates with the frequency of the three-phase alternating current of being imported by binding post (17).

Claims

1. The vibration motor that converts electrical energy into vibration mechanical energy is composed of a mover and a stator. It is characterized in that the mover is composed of a drive shaft (12) and an upper pressing plate (7) fixed on it, a rare earth permanent magnet (6) and The lower platen (5) is formed, the stator is formed by the three-phase coil inlaid in the upper and lower parts of the silicon steel sheet iron core (18) and its inner cavity, and the mover and the stator are connected by springs (1) (11).

2. According to claim 1, the vibration motor is characterized in that in the stator coil, the upper coil and the lower coil of the inner cavity are formed into a group of three coils, and one coil in each group of coils is in antiphase with the other two coils , in (8)(9)(10) coil, coil (9) and coil (8)(10) are out of phase.

3. According to claim 1, the vibration motor is characterized in that in the inner cavity of the stator silicon steel sheet core (18), the coil inlaid in the upper part is in the same phase as the coil inlaid in the lower part, and the coils (8) (4) are in the same phase, (9) (3) in phase, (10)(2) in phase, (14)(21) in phase, (15)(20) in phase, (16)(19) in phase.

4. According to claim 1, 2 or 3, the vibration motor is characterized in that in the inner cavity of the stator silicon steel sheet iron core (18), the coil inlaid in the upper part and the coil inlaid in the lower part are connected in series with the terminal (17) Three-phase circuit, coils (8)(4) in series, (9)(3) in series, (10)(2) in series, (14)(21) in series, (15)(20) in series, (16)(19) ) in series, coils (2)(3)(4) are connected to each other, (19)(20)(21) are connected to each other, coils (8)(9)(10) and (14)(15)(16) are connected to wiring The terminals (17) are connected, and all the stator coils form a three-phase circuit.