JP2003236468A - Method for generating oscillation and device therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for generating an oscillation by which a human being can sufficiently feel the oscillation although a vibrating motor is not turned on/off, and provide a device therefor. <P>SOLUTION: Since two or more kinds of oscillation frequencies are synthesized to generate a complicated oscillation frequency by simultaneously and continuously rotating two or more vibrating motors 3A, 3B which generate different oscillation frequencies, for example, on a substrate 5 in a device which is bodily sensed in the oscillation generating device 1, irregular, complicated and different oscillations are generated although a voltage is continuously applied to the motors 3A, 3B, and a human body can sufficiently feel these oscillations, thereby allowing the device to dispense with the functions such as circuits to turn on/off the motors. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration generating method and device having an improved mechanism for generating vibrations found in an incoming call function of a mobile phone or the like using a vibration motor, such as a small radio telephone calling device or a mobile phone. The present invention relates to a vibration generation method and device of a vibration motor used as an incoming call function used for a PDA, a calling function in a PDA or a medical device, or a vibration sensation function of a game machine or the like.

[0002]

2. Description of the Related Art Conventionally, as a vibration generating method and a device therefor, for example, in the case of a mobile phone, when a call is received from the other party, a voltage is intermittently applied to a built-in vibration motor to generate a vibration motor Is set to 0 N / 0 FF, vibration is intermittently generated, and a human being receives a sensation of being beaten, making it easy to notice an incoming call. In order to intermittently move (0N / 0FF) such a vibration motor, an electric circuit for generating some 0N / 0FF function when receiving a call from the other party to the mobile phone is built into the device. The vibration motor was intermittently operated by the pulse signal output from the electric circuit.

[0003]

By the way, in the conventional vibration generating method and apparatus, in order to move the vibration motor intermittently (0N / 0FF), some 0N / 0 is generated.
There is a problem that an electric circuit for generating the FF must be built in the device.

When the equipment is not provided with such a function, the voltage is continuously applied to the vibration motor,
The vibration motor only vibrates in a constant cycle. When vibrations occur in a constant cycle as described above, the vibrations are periodic, and thus it becomes difficult for a person to feel the vibrations. Therefore, the vibration motor as described above has a problem in that the original function of making a person feel a vibration cannot be sufficiently exerted.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to intermittently (0N / N) a vibration motor.
The object of the present invention is to provide a vibration generating method and a device for allowing a person to fully feel the vibration without performing 0FF).

[0006]

In order to achieve the above object, the vibration generating method of the present invention according to claim 1 is such that two or more vibration motors for generating different vibration frequencies are continuously connected at the same time in a device to be experienced. It is characterized in that a complex vibration frequency is generated by combining two or more kinds of vibration frequencies by rotating them by rotating them.

Therefore, even if a voltage is continuously applied to the vibration motor, a rugged and complicated vibration occurs, so that it is possible to omit a function such as a circuit for making the device 0N / 0FF.

Further, since different vibrations are complicatedly mixed in the vibrations synthesized by two or more kinds of vibration frequencies,
Since a variety of vibrations are generated, which is different from the conventional function of intermittently turning the vibration motor to 0N / 0FF, a person feels the vibration sufficiently.

According to a second aspect of the present invention, in the vibration generating method according to the first aspect, the two or more vibration motors are arranged so that the two or more kinds of vibration frequencies influence each other. It is a feature.

Therefore, the two or more vibration motors only have to be located at positions where their vibration frequencies influence each other, and can be appropriately arranged in the equipment to be experienced.

According to a third aspect of the present invention, there is provided a vibration generator of the present invention, which generates different vibration frequencies in a device that the user experiences.
It is characterized in that at least one vibration motor is provided.

Therefore, the operation is the same as that of claim 1, and even if a voltage is continuously applied to the vibration motor, a rugged and complicated vibration occurs, so that the function of a circuit or the like for causing the device to perform 0N / 0FF. Can be omitted.

Further, since different vibrations are complicatedly mixed in the vibrations synthesized by two or more kinds of vibration frequencies,
Since a variety of vibrations are generated, which is different from the conventional function of intermittently turning the vibration motor to 0N / 0FF, a person feels the vibration sufficiently.

According to a fourth aspect of the present invention, there is provided the vibration generating device according to the third aspect, wherein the two or more vibration motors are provided at positions where they influence each other's vibration frequency. It is a feature.

Therefore, the operation is the same as that of the second aspect, and it is only necessary that the two or more vibration motors are at positions where their vibration frequencies influence each other, so that they can be appropriately arranged in the device to be experienced. .

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

Referring to FIGS. 1 and 2, a vibration generator 1 according to this embodiment has two or more vibration generators that generate different vibration frequencies in a device such as a mobile phone or a medical device that a person should experience. By simultaneously and continuously rotating the vibration motor, the two or more kinds of vibration frequencies are combined to generate a complicated vibration frequency. As a result, even if the vibration motor is not intermittently subjected to 0N / 0FF as in the conventional case, the above-mentioned complicated vibration gives a person a bumpy sensation and makes it easier to feel the vibration more reliably.

The above two or more vibration motors have two
Since it is sufficient that the vibration frequencies of more than one kind are arranged at the positions where they affect each other, the vibration frequencies can be appropriately arranged in the device to be experienced.

As an example, in FIG. 1, for example, flat type vibration motors 3A and 3B as two vibration motors which generate different vibration frequencies are attached in parallel to, for example, a substrate 5 in the apparatus, and in FIG. , The two flat vibration motors 3A and 3B are back-to-back with each other and fixed by, for example, an adhesive, and then one flat vibration motor 3
Although the bottom of A (or 3B) is attached in series to, for example, the substrate 5 in the device, two or more vibration motors may be attached to the device in other forms.

Referring also to FIG. 3, since the above flat vibration motors 3A and 3B have the same structure, the flat vibration motor 3A will be described in detail.

The flat vibration motor 3A includes a stator 7, a rotor 9 rotatably mounted on the stator 7, and a cylindrical housing cover 11 for sealing the rotor 9.
It consists of

The stator 7 is a disk-shaped plate 13
The four permanent magnets 15 arranged in an annular shape and magnetized in the axial direction so that the S poles and the N poles are alternately arranged on the plate 13, and the rotor 9 rising from the center of the plate 13. It is composed of a support shaft 17 for support and two brushes 19A, 19B arranged with a spatial phase of 90 degrees extending from the gap between the permanent magnets 15 adjacent in the circumferential direction toward the center of the plate 13. ing. In addition,
The periphery of the plate 13 is connected to the brush 19A +
A terminal 21 and a negative terminal 23 connected to the brush 19B are provided.

The rotor 9 has a rotary shaft 25 which is rotatably supported by the support shaft 17 and extends in the vertical direction.
An armature 27 fixed in a state of being eccentric to a part of the rotating shaft 25 in the circumferential direction, and a commutator 29 (commutator) arranged on the outer peripheral surface of the rotating shaft 25 and divided into four in the circumferential direction. It is configured with. The commutator 29 constitutes a current path forming means together with the brushes 19A and 19B. The armature 27 has a coil 31 coaxially wound around it.
And a resin frame 3 that integrally supports this coil 31.
3 and.

When a current is supplied to the coil 31 through the commutator 29, the rotation direction of the rotor 9 is determined by the Fleming's left-hand rule according to the direction of the current and the direction of the magnetic force line from the permanent magnet 15. To be done.

The coil 31 is wired as shown in FIG. The commutators 29 facing each other are connected to each other. The two pairs of commutators 29 are 29A and 2 for convenience.
9B, one pair of the commutators 29A is connected to one end of the coil 31, and the other pair of the commutators 29B is connected to the other end of the coil 31. Current flows from the brushes 19A and 19B arranged with a spatial phase difference of 90 degrees with respect to the commutators 29A and 29B.
The brushes 19A and 19B are sequentially connected to the above-mentioned two pairs of commutators 29A and 29B as the rotor 9 rotates.

As a result, the rotor 9 rotates and the brush 1
When one of the brushes 9A and 19B, for example, the brush 19A comes into contact with the commutator 29B as shown in FIG. 4, current flows from the power source to the + terminal 21 → brush 19A → commutator 29B → coil 31 → commutator 29A → Brush 19B → -terminal 23 →
It flows on the ground path. When the rotor 9 rotates and the brush 19A comes into contact with the commutator 29A, current flows from the power source to the + terminal 21 → brush 19A → commutator 29A → coil 3
1 → Commutator 29B → Brush 19B → −Terminal 23 → Grounding path flows in the opposite direction to the above case. That is, coil 3
In No. 1, the polarity of the magnetic field changes alternately between the N pole and the S pole.

Therefore, since the torque generated by the magnetic force generated in the coil 31 is generated, the motor can be started.
However, since the above flat vibration motor 3 is a one-coil motor, it may not be able to start because there is a non-energized point where it is not energized. That is, the center of the coil 31 is 1
When a current flows when it is located just above the center of one of the permanent magnets 15, the starting torque becomes 0 at the position where the current flowing to the coil 31 is switched. Since the rotation direction is not determined only at this point, the magnetic material of the iron pin 35 is attached as shown in FIG. 3 in order to determine the rotation direction.

From the above, the eccentric rotor 9 serves as the armature 27, and the + terminal 21 and the brush 19A are provided.
-The eccentric armature 27 rotates with the function of the weight by the voltage applied to the terminal 23 and the brush 19B, so that continuous periodic vibration is generated as shown in FIG. 5 (A). Occur. The vibration frequency at this time is the speed at which the armature 27 rotates, that is, the flat vibration motor 3
Proportional to the rotation speed of.

A person feels the vibration at the maximum value of the amplitude of the vibration wave, that is, the peak position of the wave. When the number of revolutions of the flat vibration motor 3 is constant, the vibration cycle is constant, so the cycle of the peak value of the vibration wave is constant. At such a peak of a vibration wave having a constant cycle, it becomes difficult for a person to perceive vibrations because the vibrations they experience become chronic.

However, in the vibration generator 1 according to the embodiment of the present invention, as shown in FIGS. 1 and 2, the two flat type vibration motors 3A and 3B mounted on the substrate 5 of the device are used.
Are simultaneously and continuously rotated at different speeds, different vibration frequencies are generated as shown in FIGS. 5 (A) and 5 (B).

Therefore, the flat vibration motors 3A, 3B
In this case, since the peaks of the vibration waves of different cycles are generated at the same time, the above two vibration frequencies are combined on the substrate 5 of the device, and a plurality of vibrations are mixed as shown in FIG. 5 (C). Vibration occurs in the closed state. Since the peaks of the synthesized vibration waves are in an aperiodic state, a person will always feel a bumpy vibration without the feeling vibration becoming chronic.

Therefore, 0N /
Even if the function of generating 0FF is not installed in the device, only two or more vibration motors are continuously rotated to generate vibrations that are easily felt by humans.

A vibration generator 1 according to another embodiment of the present invention is, as shown in FIGS. 6 and 7, two or more vibration motors that generate different vibration frequencies.
A cylindrical vibrating motor 41 is used which rotates the externally eccentric weight 37 attached to a motor shaft 39.

As an example, in FIG. 6, two vibration motors, for example, cylindrical vibration motors 41A and 41B, which generate different vibration frequencies, are attached in parallel to, for example, the substrate 5 in the apparatus, and in FIG. Although the above two cylindrical vibration motors 41A and 41B are mounted in series on the substrate 5 so as to face each other, two or more vibration motors may be mounted in the device in other forms. Absent.

Referring also to FIGS. 8 and 9A and 9B, since the cylindrical vibration motors 41A and 41B have the same structure, the cylindrical vibration motor 41A will be described in detail. The cylindrical vibration motor 41A includes a cylindrical housing 43, a flange portion 45 that covers the front end of the housing 43, and, for example, an N pole and an S pole fixed to the flange portion 45 via a metal bearing portion 47. Of the two permanent magnets, and the metal bearing portion 47 rotatably supported by the metal bearing portion 47 and the housing 4
3, a rotor 51 housed in the housing 3, and a brush base 53 that covers the rear end of the housing 43.

A shaft hole 55 is formed through the metal bearing portion 47 of the magnet portion 49.

The rotor 51 includes a commutator hub (not shown) and a rear portion of the commutator hub, for example, two in the circumferential direction.
A commutator 57 (commutator) formed in a divided manner, a motor shaft 39 for fixing the rear end to the commutator hub and allowing the front end side to penetrate into the shaft hole 55 of the metal bearing portion 47, and the commutator hub. The cylindrical coreless armature 59 is fixed to the rear end portion, and the front end side is rotated outside the outer peripheral surface of the magnet portion 49 with a gap therebetween. The cylindrical coreless armature 59 is composed of a coil 61 wound around a cylindrical portion.

The brush stand 53 is provided with two brushes 63 extending toward the center of the brush stand 53 and arranged with a spatial phase of 180 degrees. The two brushes 63, together with the commutator 57, serve as a current path. It constitutes the forming means.

The front end side of the motor shaft 39 of the rotor 51 projects outside the flange portion 45, and the eccentric weight 37 is attached to the front end of the motor shaft 39 as described above.

Therefore, the commutator 5 is added to the coil 61.
When a current is supplied via 7, the rotation direction of the rotor 51 is determined by Fleming's left-hand rule, depending on the direction of the current and the direction of the magnetic force line from the permanent magnet of the magnet section 49. In this way, the rotor 51 rotates and the eccentric weight 37 rotates, so that vibration of a periodic vibration frequency occurs. The vibration frequency at this time is proportional to the speed at which the cylindrical coreless armature 59 rotates, that is, the rotation speed of the cylindrical vibration motor 41.

From the above, the vibration generating state in the other embodiment of the present invention is the same as that of the vibration generating apparatus 1 in the embodiment of FIGS. 1 and 2 described above. That is, FIG.
And as shown in FIG. 7, the two cylindrical vibration motors 41A and 41B mounted on the substrate 5 of the device are simultaneously and continuously rotated at different speeds.
As shown in (A) and (B), peaks of vibration waves having different periods are simultaneously generated.

Therefore, the above-mentioned two frequencies are combined on the substrate 5 of the device, and the vibration occurs in a state where a plurality of vibrations are mixed as shown in FIG. You will always feel bumpy vibrations without becoming chronic.

The vibration generating method and the vibration generating apparatus 1 according to the present invention can be applied to the vibration receiving function of a mobile phone, the alarm function of the vibration of a clock, the vibration function used for PDAs, the vibration function of toys, medical equipment. It can be used for a wide range of purposes, such as the function that uses vibration to notify you.

The present invention is not limited to the above-described embodiment, but can be implemented in other modes by making appropriate changes. In this embodiment, the flat vibration motor 3 and the cylindrical vibration motor 41 have been described as examples of the vibration motor, but other types of flat vibration motors, cylindrical vibration motors, and other vibration motors may be used. Absent.

[0045]

As can be understood from the above description of the embodiments of the invention, according to the invention of claim 1, even if a voltage is continuously applied to the vibration motor, a complicated vibration with unevenness is generated. Therefore, it is possible to omit a function such as a circuit for causing the device to perform 0N / 0FF.

Further, since different vibrations are mixed intricately in the vibrations synthesized by two or more kinds of vibration frequencies, there is a variety of vibrations different from the conventional function of intermittently making the vibration motor 0N / 0FF. Can be generated so that the person can fully feel the vibration.

According to the second aspect of the present invention, the two or more vibration motors only have to be located at positions where their vibration frequencies influence each other, so that they can be appropriately arranged in the device to be experienced.

According to the invention of claim 3, the effect is the same as that of claim 1, and even if a voltage is continuously applied to the vibration motor, irregular vibrations can be generated, so that 0N / 0FF can be generated in the device. It is possible to omit the function of a circuit or the like for performing the operation.

Further, since different vibrations are mixed in a complicated manner by the vibrations of two or more kinds of vibration frequencies, there are various vibrations different from the conventional function of intermittently making the vibration motor 0N / 0FF. Can be generated so that the person can fully feel the vibration.

According to the invention of claim 4, it is the same as the effect of claim 2, and since two or more vibration motors only have to be at positions where their vibration frequencies influence each other, the inside of the equipment to be experienced. Can be arranged appropriately.

[Brief description of drawings]

FIG. 1 is a perspective view of a vibration generator according to an embodiment of the present invention.

FIG. 2 is a perspective view of a vibration generator according to another embodiment of the present invention.

FIG. 3 is an exploded perspective view of the flat vibration motor according to the embodiment of the present invention.

FIG. 4 is an internal plan view of the flat vibration motor according to the embodiment of the present invention.

FIG. 5 is a diagram showing the relationship between the torque generated by this flat type vibration motor and time, (A) is a curve diagram of the vibration frequency of one flat type vibration motor, and (B) is another flat type vibration motor. In the curve diagram of the vibration frequency of the mold vibration motor, (C) is (A) and (B)
It is a curve diagram of the vibration frequency which combined the vibration frequency of.

FIG. 6 is a perspective view of a vibration generator according to another embodiment of the present invention.

FIG. 7 is a perspective view of a vibration generator according to another embodiment of the present invention.

FIG. 8 is an exploded perspective view of a cylindrical vibration motor according to another embodiment of the present invention.

FIG. 9A is a side view of a cylindrical vibration motor, and FIG.
FIG. 6A is a front view of the arrow IX-IX in (A).

[Explanation of symbols]

1 Vibration generator 3A, 3B Flat type vibration motor 5 substrates 7 Stator 9 rotor 11 Housing cover 15 Permanent magnet 17 Support shaft 19A, 19B brush 21 + terminal 23-terminal 25 rotation axis 27 Armature (with weight function) 29, 29A, 29B commutator 31 coils 33 resin frame 35 Iron Pin (Magnetic Material) 37 weights 39 motor shaft 41A, 41B Cylindrical vibration motor 43 housing 45 Flange 49 Magnet section 51 rotor 53 brush stand 57 Commutator 59 Cylindrical coreless armature 61 coils

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5D107 AA05 BB08 CC09 CC10 CC12                       CD03 DD09 FF05 FF08                 5H607 AA00 BB01 BB04 CC03 CC09                       DD02 DD03 DD16 DD18 EE39                       EE40                 5K027 AA11 FF03 FF21

Claims (4)

[Claims] 1. A complex vibration frequency is generated by synthesizing two or more kinds of vibration frequencies by simultaneously and continuously rotating two or more vibration motors that generate different vibration frequencies in a device to be sensed. A vibration generation method characterized by the above. 2. The vibration generating method according to claim 1, wherein the two or more vibration motors are arranged so that the two or more kinds of vibration frequencies influence each other. 3. A vibration generator, characterized in that two or more vibration motors for generating different vibration frequencies are provided in a device to be experienced. 4. The vibration generator according to claim 3, wherein the two or more vibration motors are provided at positions that influence each other's vibration frequency.