JP6882883B2 - Flat motor for magnetic therapy - Google Patents

Description

The present invention relates to a coin-type flat motor for magnetic therapy utilizing leakage magnetism from a DC motor.

A coin-type vibration motor is known (Patent Document 1).
As shown in FIG. 7, a shaft 42 is erected in the center of the upper part of the bracket 46, and a donut-shaped magnet 45 that is separated from the shaft 42 and surrounds the outer circumference of the shaft 42 is installed on the upper surface of the bracket 46. .. In the space between the magnets 45, a brush 48 having a bent portion comes into contact with the upper commutator substrate 49.
Further, the commutator substrate 49 is provided on the back surface of the rotor 41, and the rotor 41 is located above the magnet 45, is supported by the bearing 43, rotates about the shaft 42, and is the commutator substrate. A winding coil 44 is separately formed on the upper surface of the rotor 41 where the 49 is located, and a heavy body 50 for applying an eccentric force is installed between them.

Further, in general, a lead wire is used to connect the power supply to the lower printed circuit board 47 formed on the upper surface of the bracket 46 of the coin type vibration motor.
Finally, the upper portion of the bracket 46 is coupled to the case 40 to form a space between them.

The operation of the coin type vibration motor will be described.
When an external power source is applied to the vibration motor, a current flows through the brush 48 and the commutator substrate 49 to the winding coil 44 arranged in the eccentric rotor 41, and the magnet 45 and the case 40 Due to the interaction with the field formed in the above, the rotor 41 eccentric by the heavy body 50 rotates around the shaft 42 with the bearing 43 in between, thereby inducing vibration.

Japanese Unexamined Patent Publication No. 2003-28509

The coin-type vibration motor described in Patent Document 1 is used as a silent motor for mobile terminals and the like. Since this motor is small and generates magnetism, the present inventor has come up with the idea of effectively using this kind of flat coin-shaped motor as a magnetic therapy device.
However, in this coin-type vibration motor, in order to efficiently rotate a heavy body that generates vibration, the case is made of a magnetic material, surrounds the entire circumference of the magnet, and functions as a yoke for concentrating magnetic flux. Therefore, the magnetic flux leaking into the atmosphere is extremely small.
Therefore, this coin-type vibration motor has a problem that it cannot be diverted as it is as a magnetic therapy device.
An object of the present invention is to provide a flat motor for magnetic therapy that can use a coin-type motor having a magnet that functions as a static magnetic field and an armature coil that functions as a dynamic magnetic field as a magnetic therapy device.

The flat motor for magnetic therapy of the present invention
Disk-shaped magnetic case 18 and
A stator 10 composed of a magnet 10a for generating static magnetic flux, which is integrally provided in the magnetic case 18 with an insulating thin plate 22 interposed therebetween.
A shaft body 13 erected on the magnetic body case 18 so as to be at the center position of the stator 10.
A rotary cylinder portion 14 rotatably provided on the outer periphery of the shaft body 13 and having a commutator 15 provided in contact with and detaching from a brush 16 provided in a conductive pattern 19 of the insulating thin plate 22 on the magnetic material case 18.
This rotation barrel 14, and the stator 10 vertically opposed with a gap provided we are in, the armature coils 11a, 11b, and the rotor 11 the dynamic magnetic flux is generated by the rotation consists 11c,
A non-magnetic material case 12 made of a non-magnetic metal, which is attached to the magnetic material case 18 so as to cover the stator 10 and the rotor 11 to form a coin shape as a whole and generate an eddy current due to a change in magnetic flux density.
A DC power supply 29 connected to the armature coils 11a, 11b, 11c via the brush 16 and the commutator 15.
Consists of
The magnet 10a constituting the stator 10 is formed of a flat donut shape having a hole through which the brush 16 escapes on the inner circumference of the magnet 10a which is magnetized and combined to the north and south poles alternately at a predetermined inscribed angle. ,
The dynamic magnetic flux generated in the armature coils 11a, 11b, 11c that rotate due to the action of the magnetic flux of the stator 10, and the dynamic magnetic flux changed from the static magnetic flux of the magnet 10a by being influenced by the dynamic magnetic flux and the eddy current. Is made to penetrate the non-magnetic material case 12 and radiate to the affected area.

The magnetic case 18 projects from a part of the outer peripheral edge to integrally provide a lead wire drawing portion 23, and a fitting groove for fitting the insulating thin plate 22 into the surface on the stator side provided with the lead wire drawing portion 23. 25 is formed from the lead wire lead-out portion 23 to the central portion, a positioning protrusion 30 is formed in the fitting groove 25, a shaft relief hole 32 and a positioning hole 31 are formed in the insulating thin plate 22, and the fitting groove 25 is described. When the insulating thin plate 22 is fitted and the shaft body 13 is fitted into the shaft escape hole 32 and the positioning protrusion 30 is fitted into the positioning hole 31, the conductive pattern 19 is combined with the magnetic material case 18. It is characterized by having the same surface.

The non-magnetic metal forming the non-magnetic body case 12 is characterized in that it is made of aluminum.

An eccentric weight for generating vibration as a massager is connected to the rotor 11.

A coin-type battery 29 as the DC power source having substantially the same shape as the flat motor 9 for magnetic therapy is provided in the horizontal direction or the vertical direction.

According to the invention of claim 1,
A disk-shaped magnetic case and
A stator consisting of a magnet that generates static magnetic flux, which is integrally provided in this magnetic case with an insulating thin plate interposed therebetween.
A shaft body erected on the magnetic body case so as to be at the center position of the stator, and
A rotating cylinder portion rotatably provided on the outer circumference of the shaft body and having a commutator that is provided on the conductive pattern of the insulating thin plate on the magnetic material case and has a commutator that is in contact with and separated from the brush.
This rotation barrel, the stator and opposed been found provided with a gap up and down, a rotor dynamic magnetic flux of the alternating magnetic field is generated by the rotation consists armature coil,
A non-magnetic material case made of a non-magnetic metal that covers the stator and rotor and is attached to the magnetic material case so as to form a coin shape as a whole and generates an eddy current due to a change in magnetic flux density.
A DC power supply connected to the armature coil via the brush and the commutator,
Consists of
The magnet constituting the stator is formed of a flat donut shape having a hole through which the brush escapes on the inner circumference, which is a combination of magnetized north and south poles alternately arranged vertically at a predetermined inscribed angle.
The non-magnetic material case has a dynamic magnetic flux generated in the armature coil that rotates due to the action of the magnetic flux of the stator, and a dynamic magnetic flux that changes from the static magnetic flux of the magnet due to the influence of the dynamic magnetic flux and the eddy current. Since it penetrates and radiates to the affected area, it has the following effects.
(1) The outer shape is coin-shaped and flat, and it can be easily attached to any affected area, which is effective as a magnetic therapy device.
(2) The alternating magnetic field generated in the armature coil affects the static magnetic flux generated by the magnet, and the static magnetic flux is strengthened or weakened as a time-varying dynamic magnetic flux, which is released into the atmosphere. Therefore, this dynamic magnetic flux activates the flow of ions in the blood and improves the flow of blood. Further, since a heavy magnet is fixed and a lightweight armature coil is rotated, the battery consumption is small and it can be used for a long time.
(3) The flat motor for magnetic therapy according to the present invention is a fixed magnet type in which a magnet serves as a stator, and there is a magnetic material near the motor, and the magnetic material may be attracted by the magnet to impair the function as a motor. However, a sufficient effect can be obtained as a magnetic therapy device.
(4) Since the non-magnetic material case is made of a non-magnetic conductive metal, an eddy current is generated and the change in magnetic flux can be made more complicated.

According to the invention of claim 2,
In the magnetic material case, a lead wire lead portion is integrally provided on a part of the outer peripheral edge, and a fitting groove for fitting the insulating thin plate is provided on the surface on the stator side where the lead wire lead portion is provided. It is formed from the drawer portion to the central portion, a positioning protrusion is formed in the fitting groove, a shaft escape hole and a positioning hole are formed in the insulating thin plate, and the insulating thin plate is fitted in the fitting groove to form the shaft escape hole. When the shaft body is fitted and the positioning protrusion is fitted into the positioning hole, it is easy to handle with the conductive pattern on the same surface as the magnetic body case, and a plurality of can be attached to the affected portion.

According to the invention of claim 3,
Since the non-magnetic metal forming the non-magnetic material case is made of aluminum, the amount of magnetic flux emitted to the atmosphere is large, and it is suitable for magnetic therapy. Further, when it is made of a non-magnetic conductive metal, an eddy current is generated, and the change in magnetic flux can be made more complicated.

According to the invention of claim 4,
Since an eccentric weight for generating vibration as a massager is connected to the rotor, it is possible not only to activate the flow of ions in the blood to improve the blood flow but also to add a massage effect by hitting. it can.

According to the invention of claim 5,
Since the coin-type battery as the DC power source having substantially the same shape as the flat motor for magnetic therapy is provided in the horizontal or vertical direction, miniaturization is possible even if the flat motor for magnetic therapy is combined with the coin-type battery having substantially the same shape. ..

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 2 showing Example 1 of the flat motor for magnetic therapy of the present invention. It is a top view of the rotor which comprises the flat motor for magnetic therapy of this invention. It is an exploded perspective view of the stator (magnet) constituting the flat motor for magnetic therapy of this invention, the insulating thin plate which formed the conductive pattern on the surface, and the magnetic material case (yoke). FIG. 5 is a plan view showing an example in which batteries are integrally arranged side by side in the flat motor for magnetic therapy of the present invention. It is sectional drawing which attached the flat motor for magnetic therapy of this invention shown in FIG. 4 to the affected part. FIG. 5 is a plan view showing an example in which batteries are integrally stacked in the vertical direction on a flat motor for magnetic therapy of the present invention and attached to an affected portion. It is sectional drawing of the conventional coin type vibration motor.

The flat motor for magnetic treatment according to the present invention has a stator 10 made of a donut-shaped flat magnet provided on the magnetic case 18 and a shaft body erected on the magnetic case 18 so as to be at the center position of the stator 10. A rotating cylinder portion 14 having a rectifier 15 rotatably provided on the outer periphery of the shaft body 13 and contacting and separating from a brush 16 provided in a conductive pattern of an insulating thin plate 22 on the magnetic material case 18. The magnetic case 18 is covered with a rotor 11 formed of an armature coil provided with a gap between the rotary cylinder portion 14 and the stator 10, and the stator 10 and the rotor 11 so as to form a coin shape as a whole. It is composed of a non-magnetic material case 12 attached.

The magnetic case 18 is covered with the non-magnetic case 12, and the overall shape is a coin mold having a diameter of 5 to 30 mm and a height of 1.5 to 15 mm, more preferably a diameter of 8 to 20 mm and a height of 2 to 8 mm. And.
The non-magnetic material case is made of plastic or a non-magnetic conductive metal.
In the magnetic material case 18, a conductive pattern 19 and a brush 19 are provided on an insulating thin plate 22.

An eccentric weight for generating vibration as a massager may be connected to the rotor 11.
A coin-type battery 29 having substantially the same shape as the flat motor 9 for magnetic therapy can be provided in the horizontal direction or the vertical direction.

Example 1 of the flat motor for magnetic therapy according to the present invention will be described with reference to FIGS. 1 to 3.
Reference numeral 10 denotes a stator. As shown in FIG. 3, a donut-shaped magnet 10a is integrally provided on a magnetic material case (yoke) 18 with an insulating thin plate (flexible plate) 22 interposed therebetween. There is.
The magnetic case 18 has a diameter of about 12.0 mm and a thickness of about 0.25 mm, and has a lead wire lead-out portion 23 integrally provided on a part of the outer peripheral edge, and has a depth of 0.1 mm on the surface. A shallow fitting groove 25 is formed in the center of the lead wire lead-out portion 23. A shaft body 13 is provided by a bearing 17 at the center of the fitting groove 25. The shaft body 13 may or may not rotate.
The insulating thin plate 22 is made of a thin and flexible circular insulating plate having a thickness of about 0.1 mm, and two lead wires 20 and a conductive pattern 19 are formed along both edges of the surface. The lead wires 20 are drawn out from the conductor lead-out portion 33. Each of the two conductive patterns 19 is provided with a conductive brush 16 having a phase angle of 90 degrees as shown in FIG. When the insulating thin plate 22 is fitted into the fitting groove 25, the positioning protrusion 30 of the magnetic material case 18 is fitted into the positioning hole 31, and the bearing 17 is loosely fitted into the shaft relief hole 32, and the conductive pattern 19 is formed. Is flush with the magnetic case 18.
The magnet 10a is a donut shape having a thickness of about 0.9 mm and an outer peripheral diameter of about 10.6 mm and having a hole on the inner circumference for allowing the brush 16 to escape, and has an N pole on one side and an S pole on the other side. In addition, the north and south poles are alternately combined by 90 degrees in the circumferential direction. The degree is not limited to 90 degrees, and may be 180 degrees each.

Reference numeral 11 denotes a rotor. As shown in FIGS. 1 and 2, the rotor 11 has three armature coils 11a, 11b, and 11c at intervals of a phase angle of 120 degrees with a non-magnetic coil support member 21. It is formed by a resin mold to have a thickness of about 0.9 mm and a diameter of about 11.2 mm. A circular recess 34 is provided on the lower surface of the central portion of the coil support member 21, and a rotary cylinder portion 14 that fits into the shaft body 13 is provided at the center of the circular recess 34. The rotary cylinder portion 14 may be one that rotates on the outer circumference of the shaft body 13, but may be one that rotates integrally with the shaft body 13.
A commutator 15 divided into six in the axial direction is provided on the outer periphery of the rotary cylinder portion 14, and the three armature coils 11a are provided at the upper end of the commutator 15 via a wiring plate 28. , 11b, 11c, and at the lower end of the commutator 15, the two brushes 16 are slidably in contact with each other.

Reference numeral 12 denotes a plastic, aluminum or other non-magnetic material case having a thickness of about 0.25 mm. The non-magnetic material case 12 has a circular tubular shape with a closed upper surface and an open lower surface having a diameter of about 12.0 mm. ing.

When the rotary cylinder portion 14 of the rotor 11 is fitted to the shaft body 13 on the magnetic body case 18, the lower end of the rotary cylinder portion 14 and the bearing 17 are in close contact with each other, and the gap between the stator 10 and the rotor 11 is about 0.25 mm. It becomes. Further, when the shaft body 13 is covered with the non-magnetic material case 12 via the washer 35, the gap between the rotor 11 and the lower surface of the non-magnetic material case 12 becomes about 0.25 mm, and the total height of the flat motor 9 for magnetic therapy 9 becomes. Is about 2.8 mm and has a diameter of about 12.0 mm.

As shown in FIG. 4, the flat motor 9 for magnetic therapy configured as described above is formed by arranging coin-shaped batteries 29 having substantially the same shape as the flat motor 9 in the horizontal direction and connecting them with lead wires 20. By covering with a thin cover 38 made of a non-magnetic material, a magnetic therapy device having a length × width × height = 15 × 30 × 4 mm can be obtained.
Further, as shown in FIG. 6, a coin-shaped battery 29 having substantially the same shape as the flat motor 9 is vertically stacked and connected by a lead wire 20, and the whole is covered with a thin non-magnetic cover 38. , A magnetic therapy device having a length × width × height = 15 × 15 × 10 mm can be obtained.

The flat motor for magnetic therapy is brought into contact with the affected area 24 and attached. For sticking, a double-sided adhesive sheet 36 can be used, or a single-sided adhesive tape 37 such as an adhesive plaster can be used on the flat motor for magnetic therapy.
Even if these flat motors 9 for magnetic treatment are attached to the affected area 24, no current flows through the armature coil 14 when power is not yet supplied from the lead wire 20, so that the static magnetic flux from the stator 10 made of magnets. Only occurs, and magnetism is applied to the stiff part of the affected area 24 to promote blood circulation and soften the stiff part.
Here, when the switch is closed and a current is passed through the rotor 11 including the armature coils 11a, 11b, 11c, the stator 10 and the rotor 11 have different phase angles, so that the rotor 11 rotates.

Here, unlike the vibration motor, the rotor 11 does not need to rotate a heavy body such as an eccentric weight, so that the rotor 11 rotates with a small torque. When an electric current flows through the rotor 11, a dynamic magnetic flux is generated in the armature coils 11a, 11b, and 11c of the rotor 11. Since the currents of the armature coils 11a, 11b, and 11c are reversed forward and reverse by the rotation of the rotor 11 to become an alternating current, the direction of the dynamic magnetic flux also becomes an alternating magnetic field. The alternating magnetic field generated by the rotor 11 affects the static magnetic flux, and the static magnetic flux is strengthened or weakened as a time-varying magnetic flux, which is released into the atmosphere. By the way, as a home magnetic therapy device, it is desirable that the magnetic field is about 120 to 150 millitesla.
Therefore, this magnetic flux activates the flow of ions in the blood and improves the flow of blood. Further, since the coin-type vibration motor of the present invention is coin-shaped and flat, the magnetism of the flat motor for magnetic treatment is effective by adhering the affected portion 24 to the affected portion 24 with a double-sided adhesive sheet 36, a single-sided adhesive tape 37, or the like. Can be used for. Further, it can be used in close contact with a plurality of places as needed.

In the above embodiment, the number of armature coils is set to 3, but the number is not limited to this, and may be 1, 2, 4, or more.
In the above embodiment, the overall shape has a diameter of about 12.0 mm and a height of about 2.8 mm, but the present invention is not limited to this, and the diameter is about 8 to 30 mm and the height is about 2 to 2. It may be in the range of 5 mm or other, and can be set as appropriate.

In the above embodiment, the non-magnetic material case 12 is made of plastic or aluminum, but if it is a non-magnetic material through which magnetic flux passes, it may be a non-magnetic metal such as copper, nickel, stainless steel, or ceramics. Good. By using a non-magnetic metal among them, an eddy current is generated, and the change in magnetic flux can be made more complicated.

In the above embodiment, the magnetic case 18 functions as a yoke, but the non-magnetic case 12 does not have a function as a yoke, so that the torque as a motor is reduced, but the rotor 11 rotates. Anything that has a function of changing the magnetic field may be used.
In the above embodiment, the rotor 11 has a structure that does not have a heavy body such as an eccentric weight, but the non-magnetic body case 12 has a light eccentricity provided in the rotor 11 even if the torque as a motor is reduced. By providing a weight so as to have a function of generating vibration, it is possible to add an effect as a massager to relieve stiffness caused by vibration in addition to magnetic treatment.

The flat motor 9 for magnetic therapy according to the present invention is a fixed magnet type in which a magnet serves as a stator, and even if there is a magnetic material near the motor and the magnetic material is attracted by the magnet, the function as a motor may be impaired. Sufficient effect can be obtained as a magnetic therapy device.

10 ... Stator, 11 ... Rotor, 12 ... Non-magnetic case, 13 ... Shaft, 14 ... Rotating cylinder, 15 ... Commutator, 16 ... Brush, 17 ... Bearing, 18 ... Yoke, 19 ... Conductive pattern, 20 ... Lead wire, 21 ... Coil support member, 22 ... Insulated thin plate, 23 ... Lead wire lead-out part, 24 ... Affected part, 25 ... Fitting groove, 29 ... Battery, 30 ... Positioning protrusion, 31 ... Positioning hole, 32 ... Shaft escape hole, 33 ... Conductor lead-out part, 34 ... Circular recess.

Claims (5)

A disk-shaped magnetic case and
A stator consisting of a magnet that generates static magnetic flux, which is integrally provided in this magnetic case with an insulating thin plate interposed therebetween.
A shaft body erected on the magnetic body case so as to be at the center position of the stator, and
A rotating cylinder portion rotatably provided on the outer circumference of the shaft body and having a commutator that is provided on the conductive pattern of the insulating thin plate on the magnetic material case and has a commutator that is in contact with and separated from the brush.
This rotation barrel, the stator and opposed been found provided with a gap up and down, a rotor dynamic magnetic flux of the alternating magnetic field is generated by the rotation consists armature coil,
A non-magnetic material case made of a non-magnetic metal that covers the stator and rotor and is attached to the magnetic material case so as to form a coin shape as a whole and generates an eddy current due to a change in magnetic flux density.
A DC power supply connected to the armature coil via the brush and the commutator,
Consists of
The magnet constituting the stator is formed of a flat donut shape having a hole through which the brush escapes on the inner circumference, which is a combination of magnetized north and south poles alternately arranged vertically at a predetermined inscribed angle.
The non-magnetic material case has a dynamic magnetic flux generated in the armature coil that rotates due to the action of the magnetic flux of the stator, and a dynamic magnetic flux that is changed from the static magnetic flux of the magnet by being influenced by the dynamic magnetic flux and the eddy current. A flat motor for magnetic treatment, which is characterized by being transmitted and radiated to the affected area. The magnetic material case protrudes from a part of the outer peripheral edge and is integrally provided with a lead wire lead-out portion, and a fitting groove for fitting the insulating thin plate into the stator-side surface provided with the lead wire lead-out portion is the lead wire. It is formed from the drawer portion to the central portion, a positioning protrusion is formed in the fitting groove, a shaft escape hole and a positioning hole are formed in the insulating thin plate, and the insulating thin plate is fitted in the fitting groove to form the shaft escape hole. The flat motor for magnetic treatment according to claim 1, wherein when the shaft body is fitted and the positioning protrusion is fitted into the positioning hole, the conductive pattern is flush with the magnetic body case. .. The flat motor for magnetic therapy according to claim 1 or 2, wherein the non-magnetic metal forming the non-magnetic material case is made of aluminum. The flat motor for magnetic therapy according to claim 1, 2 or 3, wherein an eccentric weight for generating vibration as a massager is connected to the rotor. The flat motor for magnetic therapy according to claim 1, 2, 3 or 4, wherein a coin-type battery as the DC power source having substantially the same shape as the flat motor for magnetic therapy is provided in the horizontal direction or the vertical direction.

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