TWI574490B - Electromagnetic actuated mechanism and its applications - Google Patents

Description

Electromagnetic actuation mechanism and its application

The electromagnetic actuating mechanism of the present invention is a mechanism for electromagnetically actuating and driving a fluid, such as vibration, which can be used for a general fan, an internal cooling fan of an electronic device, an internal air drive of a refrigerating air duct, a water surface or a water downloading device. Propeller, cardiac flow pump, heart rhythm, etc.

The type of electromagnetically actuated slamming fan is the action between the electromagnetic coil and the magnet, and the magnet moves along the axial direction of the coil; as in the prior art: TWI504808 (patent certificate number), a vibration fan, including: a base 100; an electromagnetic actuator 200 disposed on the base, the electromagnetic actuator comprising: a fixed magnetic component 220 (electromagnetic coil); and a movable magnetic component 210 (magnet) The magnetic force between the movable magnetic element 210 and the fixed magnetic element 220 can drive the movable magnetic element to reciprocate relative to the fixed magnetic element; a blade connected to the movable magnetic element; and two limits a spring piece for being deformed by being pressed by the movable magnetic element to limit the movement stroke of the movable magnetic element; the electromagnetic actuator of the case is arranged such that the direction of the magnetic force line generated by the electromagnetic coil and the magnet The two-pole (SN) direction is on the same axis.

In the prior art, the action between the electromagnetic coil and the magnet is to move axially along the magnetic field line of the coil in the north and south poles of the magnet, and form a suction on the north and south poles of the magnet when the direction of the current of the coil changes. The repulsion effect causes the north and south poles of the magnet to reciprocate back and forth along the direction of the magnetic field line (central axis) of the coil, as shown in Fig. 1. Among them, Fig. 1(A) shows the magnet outside the coil, and Fig. 1(B) shows the magnet at the coil. Internally, this is the setting mode of the aforementioned TWI504808, so that the north and south poles of the magnet are coaxially arranged with the magnetic lines of the coil, and the magnetic absorbing force generated by the magnet is not strong enough, so that if a large repulsion force is required, the volume of the entire device becomes large. In addition, in such a mechanism that the magnet is disposed coaxially with the magnetic field line of the coil in the north-south direction of the magnet, if the iron core is accommodated in the electromagnetic coil, the attraction between the magnet and the iron core is increased, but this also causes The coil can't repel the magnet or the motion hysteresis during repelling. In application, the efficiency is low. Generally, the iron core is not in the electromagnetic coil, as shown in Figure 2.

In order to improve the magnetic repulsion strength of the conventional technology, and the phenomenon of being unable to repel or delay the movement, the disadvantages caused by low efficiency or space occupation are caused. The invention proposes two improvement methods: 1. In order to prevent the coil from being unable to repel the magnet or the movement lag during the repulsion, the north and south pole directions of the magnet are placed at a position perpendicular to the magnetic field line (axial direction) of the electromagnetic coil, so that the moving direction of the magnet is The magnetic field lines (axial directions) of the electromagnetic coil are perpendicular to each other; 2. To enhance the magnetic repellent force, the core is accommodated in the electromagnetic coil to enhance the magnetic flux, as shown in FIG. With this setting, the magnetic repulsion force can be increased, the volume of the device can be reduced, and the phenomenon that the electromagnetic coil cannot repel the magnet or the motion lag can be avoided.

The electromagnetic actuating mechanism of the present invention, for example, beats vibration, wherein the magnet, the electromagnetic coil and the iron core are arranged as shown in FIG. 3, when the magnetic line N of the electromagnetic coil is facing downward, the S pole of the magnet is attracted and the magnet N pole is repelled; When the magnetic field line S of the coil is facing downward, the N pole of the magnet is attracted and the magnet S is repelled. Therefore, when the alternating current is passed, the magnet reciprocates as the magnetic line S-N of the electromagnetic coil changes. This reciprocating motion drives the oscillating mechanism to cause the oscillating plate to perform a reciprocating oscillating motion. Because the N and S poles of the magnet compete with each other, the iron core located in the electromagnetic coil does not attract any one of the poles and causes irreversible or motion lag, which not only enhances the magnetic repulsion force, but also makes the slap motion relatively stable.

The electromagnetic actuating mechanism of the present invention comprises: a fixed magnetic element and a movable magnetic element, wherein the moving direction of the movable magnetic element and the direction of the magnetic field line (axial direction) generated by the fixed magnetic element Being perpendicular to each other, the magnetic force between the movable magnetic element and the fixed magnetic element can drive the movable magnetic element to reciprocate relative to the fixed magnetic element when the alternating current is conducted; wherein the fixed magnetic element The movable magnetic component comprises: a fixed rotating shaft, a bracket, a magnet, and a slamming plate, wherein the bracket is disposed with a semi-arc reciprocating centering on the fixed rotating shaft Rotating, the magnet is fixed on the bracket, and the north-north pole moving direction of the magnet is perpendicular to the direction of the magnetic field line (axial direction) of the fixed magnetic element, and a slap plate is disposed on one side of the bracket, when the magnet is fixed The magnetic line of the magnetic element acts, and the north and south poles of the magnet reciprocate according to the action of the magnetic field line, so that the bracket is semi-arc with the fixed rotating shaft as the center. The multi-rotation drives the reciprocating vibration of the clapper on one side of the bracket to drive the fluid.

The electromagnetic actuating mechanism of the present invention, wherein the fixed magnetic component further comprises an iron core accommodated in or extending from the coil to enhance the magnetic force and guide the magnetic field line to the magnet The north and south poles are perpendicular to each other.

The electromagnetic actuating mechanism of the present invention, wherein the vibration oscillating plate can be integrally formed with the bracket, or can be designed to be detachable, and is convenient for replacing the oscillating plates of different sizes or shapes, wherein the oscillating plate The board surface can be expanded as needed to increase the effect of driving the fluid.

In the electromagnetic actuating mechanism of the present invention, the fixed rotating shaft passes through a position of the bracket, so that the bracket can reciprocally rotate in a half arc centering on the fixed rotating shaft.

The electromagnetic actuating mechanism of the present invention, wherein the size of the magnet, the coil, the iron core, the current flux, the vibration plate, etc. can be adjusted as needed to generate an appropriate driving force, so that the power is easy to control, and can be applied to various needs of large power, Small power, or micro-power products, increase industrial utilization.

The electromagnetic actuating mechanism of the invention has the advantages of strong magnetic force, high efficiency, easy control of power, stable operation, small volume, and the like, and can be used for internal fan, electronic device internal cooling fan, refrigerating air conditioning duct internal air drive, water surface Or the water downloader, the blood flow pump, the heart rhythm, etc., are quite industrially useful.

1‧‧‧Electromagnetic coil

2‧‧‧ iron core

3‧‧‧ bracket

4‧‧‧ magnet

5‧‧‧Pat board

6‧‧‧Fixed rotating shaft

Figure 1. In the case of conventional vibration, the magnet moves in the direction of the magnetic field of the coil (axial direction), (A) the magnet is located outside the electromagnetic coil; (B) the magnet is located inside the electromagnetic coil.

Figure 2, the conventional beat vibration, the magnet moves along the direction of the magnetic line of the coil (axial direction), if the coil accommodates the iron core.

In the electromagnetic actuating mechanism of the present invention, the north-south direction of movement of the magnet is perpendicular to the direction of the magnetic field line (axial direction) of the electromagnetic coil, wherein the coil is provided with the iron core disposed.

Figure 4 is a schematic view of an embodiment of the electromagnetic actuating mechanism of the present invention in which the core is housed in a coil.

Figure 5 is a schematic view of an embodiment of an electromagnetic actuating mechanism of the present invention in which an iron core extends from the coil to the outside to guide the direction of magnetic lines of force.

The electromagnetic actuating mechanism of the present invention, which is actuated by the electromagnetic principle shown in FIG. 3, is applied to the reciprocating motion of the vibrating plate.

The electromagnetic actuating mechanism of the present invention is as shown in FIG. 4, wherein the electromagnetic coil 1 of the fixed magnetic component houses the iron core 2; the magnet 4 of the movable magnetic component is fixed on the bracket 3, and the magnet 4 and the bracket 3 is disposed at an appropriate distance directly below the direction of the magnetic field line (axial direction) generated by the electromagnetic coil 1, so that the north and north pole moving direction of the magnet is perpendicular to the direction of the magnetic field line (axial direction) generated by the electromagnetic coil; The rotating shaft 6 is disposed at a certain portion of the bracket 3, so that the bracket 3 can be rotated by a half rotation of the fixed rotating shaft 6 as a center of rotation, and the oscillating plate 5 is fixed to one side of the bracket 3 and moves with the bracket 3.

When the electromagnetic coil 1 is turned on by alternating current, the generated magnetic force causes suction to one pole of the magnet 4, and the other pole causes a repulsive force. The force of the repulsion is exchanged with the positive and negative half cycles of the alternating current, so that the two poles of the magnet 4 are alternately moved to the magnetic line (axial direction) generated by the electromagnetic coil 1 to form a reciprocating motion.

With the reciprocating motion of the two poles of the magnet 4, the driving bracket 3 reciprocates in a semi-arc rotation centering on the fixed rotating shaft 6. At this time, the oscillating plate 5 on the bracket 3 also rotates along the reciprocating half-arc to form a slap-up effect and illuminate the fluid. .

The electromagnetic vibration of the present invention, wherein the surface of the oscillating plate 5 can be expanded as needed to increase the effect of driving the fluid.

The electromagnetic actuating mechanism of the present invention is as shown in FIG. 5, wherein the electromagnetic coil 1 of the fixed magnetic component houses the iron core 2; the magnet 4 of the movable magnetic component is fixed on the bracket 3, The iron core 2 extends from the coil 1 to the outside and guides the magnetic force generated by the electromagnetic coil The direction of the line (axial direction) is perpendicular to the direction of movement of the north and south poles of the magnet, and the magnet 4 and the bracket 3 are disposed at an appropriate distance directly below the direction of the magnetic field line (axial direction) guided by the iron core 2 in the electromagnetic coil 1, so that the magnet The direction of the north and south poles is perpendicular to the direction of the magnetic field lines (axial directions) generated by the electromagnetic coil; wherein the fixed rotating shaft 6 is disposed at a certain portion of the bracket 3, so that the bracket 3 can be used as the center of rotation of the fixed rotating shaft 6 The semi-arc is rotated, and the vibrating plate 5 is fixed to one side of the bracket 3, and moves with the bracket 3.

When the electromagnetic coil 1 is turned on by alternating current, the generated magnetic force causes suction to one pole of the magnet 4, and the other pole causes a repulsive force. The force of the repulsion is exchanged with the positive and negative half cycles of the alternating current, so that the two poles of the magnet 4 are alternately moved to the direction of the magnetic field line (axial direction) generated by the electromagnetic coil 1 to form a reciprocating motion.

With the reciprocating motion of the two poles of the magnet 4, the driving bracket 3 reciprocates in a semi-arc rotation centering on the fixed rotating shaft 6. At this time, the oscillating plate 5 on the bracket 3 also rotates along the reciprocating half-arc to form a slap-up effect and illuminate the fluid. .

As described above, in the electromagnetic actuating mechanism of the present invention, the size of the magnet, the coil, the iron core, the current flux, the oscillating plate, etc. can be adjusted as needed to generate an appropriate driving force, so that the power can be easily adjusted and can be applied to various types. Products that require great power, small power, or micro-power. Moreover, the electromagnetic actuating mechanism of the invention has the advantages of strong magnetic force, high efficiency, easy control of power, stable operation, small volume, and the like, and is obviously superior to the prior art. The electromagnetic actuating mechanism of the invention can be used for a general fan, an internal cooling fan of an electronic device, an internal air drive of a refrigerating air-conditioning duct, a propeller for a water surface or a water downloading device, a cardiac blood flow pump, a heart rhythm device, etc. Industrial utilization.

1‧‧‧Electromagnetic coil

2‧‧‧ iron core

3‧‧‧ bracket

4‧‧‧ magnet

5‧‧‧Pat board

6‧‧‧Fixed rotating shaft

Claims (8)

An electromagnetic actuating mechanism comprising: a fixed magnetic element and a movable magnetic element, wherein the fixed magnetic element comprises an electromagnetic coil; the movable magnetic element comprises: a fixed rotating shaft, a bracket a magnet, and a oscillating plate; wherein the moving direction of the movable magnetic element is perpendicular to the direction of the magnetic field line (axial direction) generated by the fixed magnetic element, and when the alternating current is conducting, the movable magnetic The magnetic force between the component and the fixed magnetic component can drive the movable magnetic component to reciprocate relative to the fixed magnetic component; wherein the bracket is disposed to rotate half-arc around the fixed rotating shaft, The magnet is fixed on the bracket, and the north-north pole moving direction of the magnet is perpendicular to the direction of the magnetic field line (axial direction) of the fixed magnetic element; the oscillating plate is disposed on one side of the bracket, and when the magnet is subjected to the magnetic force of the fixed magnetic component Function, the north and south poles of the magnet reciprocate according to the action of the magnetic force, so that the bracket rotates half-arc with the fixed rotating shaft as the center, which drives The oscillating plate on one side of the bracket reciprocates. The electromagnetic actuating mechanism of claim 1, wherein the fixed magnetic component further comprises an iron core disposed in the coil for enhancing the magnetic force. The electromagnetic actuating mechanism of claim 1, wherein the fixed magnetic component further comprises an iron core, the iron core being received in the coil and extending from the coil to the outside, guiding the magnetic field line to make the magnetic field The north poles move in a direction perpendicular to each other. The electromagnetic actuating mechanism of claim 1, wherein the vibrating plate is integrally formed with the bracket. The electromagnetic actuating mechanism of claim 1, wherein the oscillating plate and the bracket are combined and fixed and/or detached to facilitate replacement of the sway plates of different sizes or shapes. For example, the electromagnetic actuating mechanism of claim 1 of the patent scope, wherein the size of the magnet, the coil, the iron core, the current flux, and the oscillating plate can be adjusted as needed to generate an appropriate driving force, and respectively applied to require a large power and small Power, or micro-powered products. The electromagnetic actuating mechanism of claim 1, wherein the fixed rotating shaft passes through a position of the bracket, so that the bracket can rotate half-arc around the fixed rotating shaft. An electromagnetic actuating mechanism, comprising the electromagnetic actuating mechanism according to any one of claims 1 to 7, which is applied to a fan, an internal cooling fan of an electronic device, an air drive inside the refrigerating air duct, Propellers for water or water downloads, cardiac flow pumps, heart rhythms.