JP2018098956A - Flat motor for magnetic therapy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat motor for magnetic therapy using a small motor having a magnet for generating a static magnetic field and an armature coil for generating a dynamic magnetic field as a magnetic therapy device. SOLUTION: A stator 10 made of a donut-shaped flat magnet provided on a magnetic body case 18, a shaft body 13 erected on the magnetic body case 18 so as to be at the center position of the stator 10, and the shaft body. A rotary cylinder portion 14 having a commutator 15 rotatably provided on the outer periphery of the magnetic material case 18 and provided in contact with and detaching from a brush 16 provided in a conductive pattern of an insulating thin plate 22 on the magnetic material case 18, and a rotary cylinder portion 14 thereof. A non-magnetic material attached to the magnetic material case 18 so as to cover the rotor 11 composed of an armature coil provided with a gap between the stator 10 and the stator 10 and the rotor 11 to form a coin shape as a whole. It is composed of a case 12 and has a coin shape with an overall shape of 12 mm in diameter and 2.8 mm in height. [Selection diagram] Fig. 1

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 at the center of the upper portion of the bracket 46, and a donut-shaped magnet 45 that is spaced apart from the shaft 42 and surrounds the outer periphery 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 contacts the upper commutator substrate 49.
The commutator substrate 49 is provided on the back surface of the rotor 41. The rotor 41 is positioned above the magnet 45, is supported by a bearing 43, rotates around the shaft 42, and the commutator substrate. A winding coil 44 is separately formed on the upper surface of the rotor 41 where 49 is located, and a weight body 50 for applying an eccentric force therebetween is installed.

In general, a lead wire is used to connect a power source to a 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 portion therebetween.

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 winding coil 44 disposed in the eccentric rotor 41 via the brush 48 and the commutator board 49, and the magnet 45 and the case 40. Due to the interaction with the magnetic field generated by the above-described structure, the rotor 41 eccentric by the weight body 50 rotates around the shaft 42 with the bearing 43 interposed therebetween, thereby inducing vibration.

JP 2003-285209 A

The coin type vibration motor described in Patent Document 1 is used as a silent motor for a mobile terminal or 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-type motor as a magnetic therapy device.
However, in this coin-type vibration motor, the case is made of a magnetic body to efficiently rotate the weight body that generates vibration, and surrounds the entire circumference of the magnet and functions as a yoke for concentrating the 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 in which 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 can be used as a magnetic therapy device.

  The flat motor for magnetic therapy according to the present invention includes a stator 10 formed of a donut-like flat magnet provided in a 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. 13 and a rotating cylinder portion 14 having a commutator 15 which is rotatably provided on the outer periphery of the shaft body 13 and which is in contact with and separated from the brush 16 provided on the conductive pattern 19 of the insulating thin plate 22 on the magnetic case 18. The rotating cylinder portion 14 is covered with the rotor 11 formed of an armature coil provided with a gap from the stator 10, and the magnetic case 18 so as to cover the stator 10 and the rotor 11 and to form a coin type as a whole. And a non-magnetic case 12 attached to the base plate.

  A coin shape in which the entire shape of the magnetic case 18 covered with the nonmagnetic case 12 is 5 to 30 mm in diameter and 1.5 to 15 mm in height, more preferably in the range of 8 to 20 mm in diameter and 2 to 8 mm in height. It is characterized by that.

  The nonmagnetic case is made of plastic or nonmagnetic conductive metal.

  The magnetic case 18 is characterized in that an insulating thin plate 22 is provided with a conductive pattern 19 and a brush 19.

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

  A coin battery 29 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, the magnetic therapy motor of the present invention comprises:
A stator made of a donut-like flat magnet provided in a magnetic case;
A shaft body erected on the magnetic case 18 so as to be the center position of the stator;
A rotating cylinder portion having a commutator that is rotatably provided on the outer periphery of the shaft body and has a commutator that contacts and separates a brush provided on a conductive pattern of an insulating thin plate on the magnetic case 18;
In this rotating cylinder part, a rotor made of an armature coil provided with a gap from the stator,
Since it consists of a non-magnetic case that is attached to the magnetic case 18 so as to cover the stator and the rotor so that the whole becomes a coin type, the outer shape is a coin type and is flat, and it can be applied to any affected part. Adhesion is easy and effective as a magnetic therapy device. Further, the alternating magnetic field generated by the armature coil influences the static magnetic flux generated by the magnet, and the static magnetic flux is strengthened or weakened and is released into the atmosphere as time-varying dynamic magnetic flux. Therefore, this dynamic magnetic flux activates the flow of ions in the blood and improves the flow of blood. Furthermore, since a heavy magnet is fixed and a lightweight armature coil is rotated, the battery consumption is small and long-time use is possible.
Furthermore, the flat motor for magnetic therapy according to the present invention is a magnet fixed type in which a magnet serves as a stator, and there is a magnetic body near the motor, and the magnetic body is attracted by the magnet and the function as the motor may be impaired. However, a sufficient effect can be obtained as a magnetic therapy device.

According to invention of Claim 2,
The entire shape of the magnetic case covered with a non-magnetic case is a coin shape 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. Therefore, it is easy to handle and a plurality can be attached to the affected area.

According to invention of Claim 3,
Since the non-magnetic case is made of plastic or non-magnetic conductive metal, the amount of magnetic flux emitted to the atmosphere is increased, which is suitable for magnetic therapy. Moreover, when it consists of a nonmagnetic electroconductive metal, an eddy current arises and the change of magnetic flux can be made more complicated.

According to invention of Claim 4,
Since the magnetic case is provided with a conductive pattern and a brush on an insulating thin plate, the magnetic field lines of the magnet can be efficiently led to the coil and the affected part.

  According to the invention of claim 5, since the eccentric weight for generating vibration as a massager is connected to the rotor, not only the flow of ions in the blood is activated to improve the flow of blood. A massage effect by striking can be added.

  Since the coin-type battery having substantially the same shape as that of the flat motor for magnetic therapy is provided in the horizontal direction or the vertical direction, it is possible to reduce the size even if the coin-type battery having substantially the same shape is combined with the flat motor for magnetic therapy.

It is the sectional view on the AA line of FIG. 2 which shows Example 1 of the flat motor for magnetic therapy of this invention. It is a top view of the rotor which comprises the flat motor for magnetic therapy of this invention. It is a disassembled perspective view of the stator (magnet) which comprises the flat motor for magnetic treatment of this invention, the insulating thin plate which formed the conductive pattern on the surface, and a magnetic body case (yoke). It is a top view which shows the example which arranged the battery side by side in the flat direction for the flat motor for magnetic treatments of this invention. It is sectional drawing which stuck the flat motor for magnetic therapy of this invention shown in FIG. 4 to the affected part. It is a top view which shows the example which has arrange | positioned the battery for the magnetic therapy flat motor of this invention so that it may overlap with the vertical direction integrally, and was stuck to the affected part. It is sectional drawing of the conventional coin type vibration motor.

  A flat motor for magnetic therapy according to the present invention includes a stator 10 made of a donut-like flat magnet provided in a 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. 13 and a rotating cylinder portion 14 having a commutator 15 that is rotatably provided on the outer periphery of the shaft body 13 and that is in contact with and separated from the brush 16 provided on the conductive pattern of the insulating thin plate 22 on the magnetic case 18. A rotor 11 made of an armature coil provided with a gap with respect to the stator 10 and the stator 10 and the rotor 11 are covered with the rotating cylinder portion 14, and the magnetic case 18 is formed so as to have a coin shape as a whole. It is comprised with the nonmagnetic body case 12 attached.

A coin shape in which the entire shape of the magnetic case 18 covered with the nonmagnetic case 12 is 5 to 30 mm in diameter and 1.5 to 15 mm in height, more preferably in the range of 8 to 20 mm in diameter and 2 to 8 mm in height. And
The nonmagnetic case is made of plastic or nonmagnetic conductive metal.
The magnetic case 18 is provided with a conductive pattern 19 and a brush 19 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.

A flat motor for magnetic therapy according to a first embodiment of the present invention will be described with reference to FIGS.
Reference numeral 10 denotes a stator. As shown in FIG. 3, the stator 10 has a donut-shaped magnet 10a integrally provided on a magnetic case (yoke) 18 with an insulating thin plate (flexible plate) 22 interposed therebetween. Yes.
The magnetic case 18 has a diameter of about 12.0 mm and a thickness of about 0.25 mm. The magnetic case 18 protrudes from a part of the outer peripheral edge and is integrally provided with a lead wire lead-out portion 23. The surface has a depth of 0.1 mm. A shallow fitting groove 25 is formed in the center from 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 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 individual lead wires 20 are drawn out from the lead wire drawing portion 33. The two conductive patterns 19 are each provided with a conductive brush 16 with 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 projection 30 of the magnetic case 18 is fitted into the positioning hole 31, the bearing 17 is loosely fitted into the shaft escape hole 32, and the conductive pattern 19. Is flush with the magnetic case 18.
The magnet 10a has a thickness of about 0.9 mm and an outer diameter of about 10.6 mm, and has a donut shape with a hole on the inner periphery that allows the brush 16 to escape. One side has an N pole and the other side has an S pole. In addition, the N pole and the S pole are alternately combined by 90 degrees in the circumferential direction. The angle is not limited to 90 degrees and may be 180 degrees.

Reference numeral 11 denotes a rotor. As shown in FIGS. 1 and 2, the rotor 11 includes three armature coils 11a, 11b, and 11c at a phase angle interval of 120 degrees by a non-magnetic coil support member 21. The resin mold is formed with 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 rotating cylinder portion 14 that fits the shaft body 13 is provided at the center of the circular recess 34. The rotating cylinder portion 14 may rotate on the outer periphery of the shaft body 13, but may rotate integrally with the shaft body 13.
A commutator 15 that is divided into six in the axial direction is provided on the outer periphery of the rotating cylinder portion 14, and the three armature coils 11 a are connected to an upper end portion of the commutator 15 via a wiring board 28. , 11b, 11c, and the lower end of the commutator 15 is slidably in contact with the two brushes 16.

  Reference numeral 12 denotes a nonmagnetic case of plastic, aluminum or the like having a thickness of about 0.25 mm. The nonmagnetic case 12 has a circular cylindrical shape having a closed top surface and an open bottom surface having a diameter of about 12.0 mm. ing.

  When the rotating cylinder portion 14 of the rotor 11 is fitted to the shaft body 13 on the magnetic material case 18, the lower ends of the bearing 17 and the rotating cylinder portion 14 are brought into close contact with each other, and the gap between the stator 10 and the rotor 11 is about 0.25 mm. It becomes. Furthermore, when the non-magnetic case 12 is put on the shaft 13 via the washer 35, the gap between the rotor 11 and the lower surface of the non-magnetic case 12 becomes about 0.25 mm, and the overall height of the flat motor 9 for magnetic therapy is increased. Is about 2.8 mm and the diameter is about 12.0 mm.

As shown in FIG. 4, the flat motor 9 for magnetic therapy configured as described above has coin-type batteries 29 of substantially the same shape as the flat motor 9 arranged in the horizontal direction and connected by lead wires 20. By covering with a thin cover 38 made of a non-magnetic material, a magnetic therapy device of about length × width × height = 15 × 30 × 4 mm is obtained.
Further, as shown in FIG. 6, coin-shaped batteries 29 having substantially the same shape as the flat motor 9 are stacked in the vertical direction and connected by lead wires 20, and the whole is covered with a thin cover 38 made of a nonmagnetic material. Thus, a magnetic therapy device with a length × width × height = 15 × 15 × 10 mm is obtained.

The flat motor for magnetic therapy is attached in contact with the affected part 24. For sticking, a double-sided pressure-sensitive adhesive sheet 36 can be used, or it can be stopped with a single-sided pressure-sensitive adhesive tape 37 such as a bandage from the flat motor for magnetic therapy.
Even if these flat motors 9 for magnetic therapy are attached to the affected part 24 and no power is supplied from the lead wire 20, no current flows through the armature coil 14, so that the static magnetic flux from the stator 10 made of magnets. Only occurs, magnetizes the stiff part of the affected part 24, promotes blood circulation, and softens the stiff.
Here, when the switch is closed and a current is passed through the rotor 11 composed of the armature coils 11a, 11b, and 11c, the rotor 10 rotates because the stator 10 and the rotor 11 have different phase angles.

Here, unlike the vibration motor, the rotor 11 does not need to rotate a weight body such as an eccentric weight, so the rotor 11 rotates with a small torque. When a current flows through the rotor 11, 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 in the forward and reverse directions 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 influences the static magnetic flux and is released into the atmosphere as a time-varying magnetic flux that is strengthened or weakened. Incidentally, it is desirable that the magnetic therapy device for home use has a magnetic field of 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 a coin type and flat, the magnetic force of the flat motor for magnetic therapy is effectively obtained by contacting the affected part 24 with the double-sided adhesive sheet 36, single-sided adhesive tape 37, etc. Available to: Moreover, it can also be used in close contact with a plurality of places as required.

In the above-described embodiment, the number of armature coils is three. However, the number of armature coils is not limited to this, and may be one, two, four, or more.
In the embodiment, the overall shape is about 12.0 mm in diameter and about 2.8 mm in height. However, 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 mm. It may be in the range of 5 mm or other, and can be set as appropriate.

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

In the above embodiment, the magnetic case 18 functions as a yoke. However, since the nonmagnetic case 12 does not function as a yoke, the torque as a motor decreases, 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 does not have a weight body such as an eccentric weight, but the non-magnetic case 12 has a light eccentricity provided in the rotor 11 even if the torque as a motor is reduced. By providing a weight and having a function of generating vibrations, it is possible to add an effect as a massage device that relieves stiffness due to vibrations in addition to magnetic therapy.

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

  DESCRIPTION OF SYMBOLS 10 ... Stator, 11 ... Rotor, 12 ... Non-magnetic material case, 13 ... Shaft body, 14 ... Rotating cylinder part, 15 ... Commutator, 16 ... Brush, 17 ... Bearing, 18 ... Yoke, 19 ... Conductive pattern, 20 ... Lead wire 21 ... Coil supporting member 22 ... Insulating thin plate 23 ... Lead wire lead-out part 24 ... Affected part 25 ... Insertion groove 29 ... Battery 30 ... Positioning protrusion 31 ... Positioning hole 32 ... Shaft relief hole 33: Conductor lead-out portion, 34: Circular recess.

Claims (6)

A stator made of a donut-like flat magnet provided in a magnetic case;
A shaft body erected on the magnetic case so as to be the center position of the stator;
A rotating cylinder portion having a commutator that is rotatably provided on the outer periphery of the shaft body and has a commutator that contacts and separates a brush provided on a conductive pattern of an insulating thin plate on the magnetic case;
In this rotating cylinder part, a rotor made of an armature coil provided with a gap from the stator,
A flat motor for magnetic therapy, comprising: a non-magnetic case attached to the magnetic case so as to cover the stator and the rotor so as to be entirely coin-shaped.   The entire shape of the magnetic case covered with a non-magnetic case is a coin shape 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. The flat motor for magnetic therapy according to claim 1.   The flat motor for magnetic therapy according to claim 1, wherein the nonmagnetic case is made of plastic or a nonmagnetic conductive metal.   4. The flat motor for magnetic therapy according to claim 1, wherein the magnetic case is provided with a conductive pattern and a brush on an insulating thin plate.   The flat motor for magnetic therapy according to claim 1, 2, 3, or 4, wherein an eccentric weight for generating vibration as a massager is connected to the rotor.   6. The flat motor for magnetic therapy according to claim 1, further comprising a coin-type battery having substantially the same shape as the flat motor for magnetic therapy in the horizontal direction or the vertical direction.

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