JP7058109B2 - Electronics - Google Patents

Description

The present invention relates to an electronic device.

In information devices such as mobile phones and tablets, vibration is used as a means for transmitting information such as incoming calls, emails, and alarm notifications to users. Further, in recent years, vibration is also used as a means for transmitting various information to a user in a touch panel display or the like used in AV equipment, amusement equipment, or the like.

As the vibration generator, for example, there is a vibration motor in which an eccentric weight is fixed to the rotating shaft of the motor (see, for example, Patent Documents 1 to 3). Further, as a vibration generator, there is a device provided with a linear actuator and generating vibration by reciprocating a weight (see, for example, Patent Document 4).

Japanese Unexamined Patent Publication No. 2016-007114 Japanese Patent Publication No. 2008-520180 Japanese Unexamined Patent Publication No. 2015-199008 Japanese Unexamined Patent Publication No. 2015-1120113

By the way, in recent years, in an electronic device provided with a vibration generator, there is a demand to reduce the area occupied by the vibration generator. However, if the vibration generator is miniaturized, the vibration force also decreases, so that the notification performance to the user may decrease.

Therefore, the present invention provides an electronic device having excellent notification performance to a user.

The electronic device of the present invention is a vibration generator that generates vibration by displacing a weight, and a visual recognition unit that is visually recognizable from the outside and has an opening at a position overlapping the weight when viewed from the outside. And a plate-shaped support that supports the vibration generator, and the vibration generator is provided with a stator and a rotation shaft rotatably provided around an axis parallel to the support with respect to the stator. And the weight attached to the rotation shaft, and the support is characterized in that a weight avoidance portion into which the weight enters is formed.

According to the present invention, the weight can be visually recognized from the outside through the opening of the visual recognition portion. As a result, the displacement of the weight when the vibration generator generates vibration can be visually recognized from the outside. Therefore, the electronic device can notify the user visually in addition to the notification by the vibration generated by the vibration generator. Therefore, it is possible to provide an electronic device having excellent notification performance to the user.

Further , vibration can be generated by rotating the weight by the stator and the rotating shaft. Therefore, when the vibration generator generates vibration, the weight rotates in the opening of the visual recognition portion when viewed from the outside. Therefore, the electronic device can be visually notified.

In the above electronic device, the dimension of the vibration generator in the axial direction of the axis is larger than the maximum dimension of the vibration generator in the radial direction orthogonal to the axial direction, and the vibration generator has the radial direction. It is desirable that the openings are arranged along the opening direction of the openings.

According to the present invention, the size of the area occupied by the vibration generator in the opening direction of the opening is reduced as compared with the configuration in which the vibration generator is arranged in a state where the radial direction intersects the opening direction of the opening. be able to. Therefore, the electronic device can be miniaturized in the opening direction of the opening.

In the above electronic device, it is desirable that the maximum dimension of the weight in the radial direction orthogonal to the axial direction of the axis is larger than the maximum dimension of the stator in the radial direction.

According to the present invention, the weight can be set heavier than the configuration in which the maximum dimension of the weight in the radial direction is equal to or less than the maximum dimension of the stator in the radial direction. This makes it possible to increase the vibration force of the vibration generator and improve the notification performance to the user.

In the above electronic device, it is desirable that the weight overlaps with the opening when rotated when viewed from a direction orthogonal to the opening direction of the opening.

According to the present invention, the area occupied by the visual recognition portion and the vibration generator in the opening direction of the opening is compared with the configuration in which the weight does not overlap the opening when rotating when viewed from the direction orthogonal to the opening direction of the opening. Can be made smaller. Therefore, the electronic device can be miniaturized in the opening direction of the opening. In addition, the visibility of the weight is improved because the weight is placed closer to the user compared to the configuration in which the weight does not overlap the opening when rotating when viewed from the direction orthogonal to the opening direction of the opening. do. Therefore, the notification performance to the user can be improved.

In the above electronic device, it is desirable that the weight protrudes outward from the visual recognition portion during rotation.

According to the present invention, it is possible to reduce the area occupied by the visual recognition portion and the vibration generator in the opening direction of the opening as compared with the configuration in which the weight does not project outward from the visual recognition portion when rotating. Therefore, the electronic device can be miniaturized in the opening direction of the opening. Further, since the weight is arranged closer to the user, the visibility of the weight is improved. Therefore, the notification performance to the user can be improved.

According to the present invention, it is possible to provide an electronic device having excellent notification performance to a user.

It is a top view of the clock of 1st Embodiment. It is sectional drawing which shows the internal structure of the timepiece of 1st Embodiment. It is a perspective view of the vibration generator of 1st Embodiment. It is sectional drawing which shows the internal structure of the timepiece of the modification of 1st Embodiment. It is a V arrow view of FIG. It is a top view of the clock 101 of the 2nd Embodiment. It is a perspective view which shows typically the vibration generator of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, a wristwatch-type analog electronic clock will be described as an example of an electronic device including a vibration generator. In the following description, the same reference numerals are given to configurations having the same or similar functions. Then, the duplicate description of those configurations may be omitted.

(First Embodiment)
FIG. 1 is a plan view of the clock 1 of the first embodiment.
As shown in FIG. 1, the timepiece 1 of the first embodiment includes a timepiece body 2 and a band 3 attached to the timepiece body 2.

The watch body 2 includes a watch case 5, a dial 10 (visual part) provided in the watch case 5, a movement (not shown), a vibration generator 20, and a support 40 (see FIG. 2). There is. The watch case 5 includes a body 6, a glass 7, and a back cover (not shown). In this embodiment, the side where the glass 7 is located with respect to the back cover is defined as the front side, and the opposite side thereof is defined as the back side.

The dial 10 is formed in a disk shape. The dial 10 is arranged on the back side of the glass 7. The dial 10 is arranged so that its thickness direction coincides with the front and back directions of the timepiece 1. The surface of the dial 10 is visible from the outside through the glass 7. On the surface of the dial 10, numbers and the like for displaying the time are clearly indicated. The dial 10 is arranged so as to cover the vibration generator 20 and the movement (not shown). A plurality of hands 8 (hour hand, minute hand, and second hand) are rotatably arranged between the dial 10 and the glass 7.
The movement includes a drive unit, a battery, and the like, and controls the drive of a plurality of hands 8.

FIG. 2 is a cross-sectional view showing the internal structure of the clock 1 of the first embodiment.
As shown in FIG. 2, the support 40 supports the vibration generator 20. The support 40 is, for example, a circuit board or the like. The support 40 is arranged on the back side of the dial 10. The support 40 is arranged in parallel with the dial 10. The support 40 is formed with a weight avoiding portion 41 into which the weight 29 described later of the vibration generator 20 enters. The weight avoiding portion 41 may be a through hole that penetrates the support 40 in the front-back direction, or may be a recess that is recessed from the front side to the back side.

FIG. 3 is a perspective view of the vibration generator 20 of the first embodiment.
As shown in FIG. 3, the vibration generator 20 is a cylindrical brushed DC motor, and includes a stator 21, a rotor 26, and a weight 29.
The stator 21 has a stator housing 22. The stator housing 22 is formed in a cylindrical shape. A magnet, a commutator, and a brush (not shown) are provided inside the stator housing 22. A pair of lead wires 23 for supplying electric power extend from the stator 21.

The rotor 26 is rotatably provided around the rotation axis O (predetermined axis) with respect to the stator 21. The rotor 26 has a coil (not shown), a coil holder (not shown) around which the coil is wound, and a rotating shaft 27 attached to the coil holder. The coil and coil holder are arranged inside the stator housing 22. One end of the rotating shaft 27 is arranged inside the stator housing 22, and the other end protrudes to the outside of the stator housing 22. A coil holder is fixed to one end of the rotating shaft 27. In the following description, the rotation axis O direction is referred to as an axial direction, the direction orthogonal to the axial direction and extending radially from the rotation axis O is referred to as a radial direction, and the circumferential direction around the rotation axis O is simply referred to as a circumferential direction. ..

The weight 29 is arranged on the outside of the stator housing 22. The weight 29 is attached to the other end of the rotating shaft 27. The weight 29 is formed in a non-uniform shape in the circumferential direction. The weight 29 is formed in a semi-cylindrical shape. The maximum dimension of the weight 29 in the radial direction is larger than the maximum dimension of the stator 21 in the radial direction (that is, the diameter of the stator housing). The center of gravity of the weight 29 is eccentric in the radial direction with respect to the rotation axis O.

The dimension of the vibration generator 20 in the axial direction is larger than the maximum dimension of the vibration generator 20 in the radial direction. The rotor 26 and the weight 29 rotate integrally with the stator 21. The rotating body 25 including the rotor 26 and the weight 29 has a center of gravity at a position deviated from the rotation axis O. As a result, the vibration generator 20 generates vibration by rotating the rotor 26 to rotate (displace) the weight 29.

As shown in FIG. 2, the vibration generator 20 is arranged so that the rotation axis O is orthogonal to the front and back directions of the clock 1. That is, the vibration generator 20 is arranged so that one direction in the radial direction is along the front and back directions of the clock 1. The stator 21 is directly fixed to the front surface of the support 40 and is arranged so as to be close to the back surface of the dial 10. The weight 29 is arranged at a position overlapping the weight avoiding portion 41 of the support 40 when viewed from the front and back directions. As a result, the weight 29 is prevented from coming into contact with the support 40 during rotation.

As shown in FIGS. 1 and 2, the dial 10 is formed with an opening 11. The opening direction of the opening 11 coincides with the front and back directions of the clock 1. The opening 11 is formed at a position overlapping with the weight 29 of the vibration generator 20 when viewed from the front and back directions. A part of the weight 29 is arranged inside the opening 11 when the weight 29 rotates. That is, the opening 11 overlaps with a part of the rotating weight 29 when viewed from a direction orthogonal to the front and back directions. As a result, the weight 29 is prevented from coming into contact with the dial 10 during rotation, and is visible through the glass 7. The weight 29 is provided so as to project from the dial 10 to the front side during rotation. The opening 11 is formed in a rectangular shape extending in both the axial direction and the radial direction of the vibration generator 20 when viewed from the front and back directions.

As described above, according to the present embodiment, the dial 10 is provided with the opening 11 at a position overlapping the weight 29 when viewed from the outside, so that the weight 29 can be passed through the opening 11 of the dial 10. It becomes visible from the outside. As a result, the displacement of the weight 29 when the vibration generator 20 generates vibration can be visually recognized from the outside. Therefore, the clock 1 can notify the user visually in addition to the notification by the vibration generated by the vibration generator 20. Therefore, it is possible to provide the clock 1 having excellent notification performance to the user.

Further, since the vibration generator 20 includes a stator 21, a rotary shaft 27 rotatably provided with respect to the stator 21, and a weight 29 attached to the rotary shaft 27, the stator 21 and the rotary shaft 27 are provided. Vibration can be generated by rotating the weight 29. Therefore, when the vibration generator 20 generates vibration, the weight 29 rotates in the opening 11 of the dial 10 when viewed from the outside. Therefore, the clock 1 can be visually notified.

Further, the dimension of the vibration generator 20 in the axial direction is larger than the maximum dimension of the vibration generator 20 in the radial direction, and the vibration generator 20 is arranged so that the radial direction is along the front and back directions of the clock 1. According to this configuration, the size of the area occupied by the vibration generator 20 in the front and back directions of the clock 1 is determined as compared with the configuration in which the vibration generator 20 is arranged in a state where the radial directions intersect the front and back directions of the clock 1. It can be made smaller. Therefore, the clock 1 can be miniaturized in the front and back directions of the clock 1.

Further, the maximum dimension of the weight 29 in the radial direction is larger than the maximum dimension of the stator 21 in the radial direction. According to this configuration, the weight 29 can be set heavier than the configuration in which the maximum dimension of the weight in the radial direction is equal to or smaller than the maximum dimension of the stator in the radial direction. As a result, the vibration force of the vibration generator 20 can be increased, and the notification performance to the user can be improved.

Further, the weight 29 overlaps with the opening 11 when rotating when viewed from a direction orthogonal to the front and back directions of the clock 1. According to this configuration, the dial 10 and the vibration generator 20 occupy in the front and back directions of the timepiece 1 as compared with the configuration in which the weight 29 does not overlap with the opening 11 when rotating when viewed from the direction orthogonal to the front and back directions. The area can be made smaller. Therefore, the clock 1 can be miniaturized in the front and back directions of the clock 1. Further, as compared with the configuration in which the weight 29 does not overlap with the opening 11 when rotated when viewed from the direction orthogonal to the front and back directions, the weight 29 is arranged at a position closer to the user, so that the visibility of the weight 29 is improved. improves. Therefore, the notification performance to the user can be improved.

Moreover, the weight 29 protrudes from the dial 10 toward the front side during rotation. According to this configuration, the area occupied by the dial 10 and the vibration generator 20 in the front and back directions of the timepiece 1 is reduced as compared with the configuration in which the weight 29 does not protrude outward from the dial 10 when rotating. Can be done. Therefore, the clock 1 can be miniaturized in the front and back directions of the clock 1. Further, since the weight 29 is arranged at a position closer to the user, the visibility of the weight 29 is improved. Therefore, the notification performance to the user can be improved.

(Variation example of the first embodiment)
FIG. 4 is a cross-sectional view showing the internal structure of the clock 1 of the modified example of the first embodiment. FIG. 5 is a view taken along the line V of FIG. 4.
In the first embodiment shown in FIG. 2, the stator 21 of the vibration generator 20 is directly fixed to the support 40. On the other hand, in the modification of the first embodiment shown in FIGS. 4 and 5, the stator 21 of the vibration generator 20 is fixed to the support 40 via the spacer 42, that is, the first embodiment. Is different. The spacer 42 is formed of, for example, an elastomer, a hard resin material, or the like. The spacer 42 is formed so that the distance from the rotation axis O of the vibration generator 20 to the surface of the support 40 is larger than the maximum radius of the weight 29. As a result, since the vibration generator 20 is arranged in a state where the bottom is raised with respect to the support 40, it is not necessary to form the weight avoidance portion 41 (see FIG. 2) on the support 40. However, the weight avoidance portion 41 is formed on the support 40 as in the first embodiment shown in FIG. 2 in that the area occupied by the vibration generator 20 and the support 40 can be reduced in the front and back directions of the clock 1. The configuration is effective.

(Second Embodiment)
FIG. 6 is a plan view of the clock 101 of the second embodiment.
As shown in FIG. 6, the clock body 102 of the clock 101 includes a dial 110 and a vibration generator 120.

FIG. 7 is a perspective view schematically showing the vibration generator 120 of the second embodiment.
As shown in FIG. 7, the vibration generator 120 is a linear actuator, and is a pair of weights 121 provided so as to be able to reciprocate linearly in a predetermined direction, and a drive for driving the weights 121. A unit 123 and a case 125 for accommodating the weight 121 and the drive unit 123 are provided. The vibration generator 120 generates vibration by displacing the weight 121.

Each of the pair of weights 121 is formed, for example, in a rectangular parallelepiped shape. The pair of weights 121 are arranged apart from each other in a predetermined direction. For example, a pair of weights 121 are movably supported along a predetermined direction by a shaft 128 extending along a predetermined direction.

The drive unit 123 is formed of, for example, a coil and a pair of magnets, and is configured to vibrate the pair of magnets with respect to the coil in a predetermined direction. The coil is arranged between the pair of weights 121. A weight 121 is fixed to each magnet. As a result, the drive unit 123 can displace the pair of weights 121 along a predetermined direction.

The case 125 is formed in a rectangular parallelepiped shape. The case 125 is provided with a case opening 126 that exposes the weight 121. A pair of case openings 126 are formed, and at least a part of the weight 121 is exposed to the outside of the case 125. The case opening 126 opens in a direction that intersects (orthogonally in this embodiment) with respect to the displacement direction of the weight 121. The linear actuator may be of a type in which the weight is displaced along the opening direction of the case opening. Further, in the linear actuator, the weight may be provided so as to overlap with the case opening in the opening direction or to protrude from the case opening. Further, in the linear actuator, the magnet of the drive unit may be a weight.

As shown in FIG. 6, the vibration generator 120 is arranged on the back side of the dial 110. The vibration generator 120 is arranged so that a predetermined direction, which is the operating direction of the weight 121, is orthogonal to the front and back directions of the timepiece 101, and the case opening 126 faces the dial 110 side.

The dial 110 is formed with a pair of openings 111. The openings 111 are separately formed at positions overlapping with the weight 121 of the vibration generator 120 when viewed from the front and back directions. Since the case opening 126 for exposing the weight 121 is formed in the case 125 (see FIG. 7) of the vibration generator 120 so as to face the dial 110 side, the weight 121 is viewed from the outside of the watch 101. Is exposed through the opening 111. For example, each opening 111 is formed in a shape that matches the case opening 126 of the vibration generator 120 when viewed from the front and back. In addition, only one opening of the dial may be formed so as to overlap with the pair of case openings 126.

As described above, according to the present embodiment, the dial 110 is provided with the opening 111 at a position overlapping with the weight 121 when viewed from the outside, so that the operation and effect are the same as those of the clock 1 of the first embodiment. Play.

Further, since the case 125 of the vibration generator 120 is provided with a case opening 126 that exposes the weight 121 through the opening 111 of the dial 110 when viewed from the outside, when the vibration generator 120 generates vibration. In addition, the weight 121 reciprocates within the opening 111 of the dial 110 when viewed from the outside. Therefore, the clock 101 can be visually notified.

The present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope thereof.
For example, in the above embodiment, a clock has been described as an example of an electronic device provided with a vibration generator, but the electronic device is not limited to this, and the electronic device may be a device having a vibration notification function such as a smartphone or a tablet PC. Just do it.

Further, in the first embodiment, the weight 29 is formed in a semi-cylindrical shape, but the weight 29 is not limited to this, and the center of gravity of the rotating body including the weight and the rotor 26 is shifted with respect to the rotation axis O. It suffices if it is formed in.

Further, in the first embodiment, the maximum dimension of the weight 29 in the radial direction is larger than the maximum dimension of the stator 21 in the radial direction, but the maximum dimension is not limited to this. The maximum dimension of the weight in the radial direction may be equal to or less than the maximum dimension of the stator 21 in the radial direction.
Further, in the first embodiment, the weight 29 is provided so as to protrude from the dial 10 to the front side during rotation, but the weight 29 is not limited to this and does not protrude from the dial 10 to the front side during rotation. It may be provided.

In addition, it is possible to replace the components in the above-described embodiment with well-known components as appropriate without departing from the spirit of the present invention.

1,101 ... Clock (electronic equipment) 10,110 ... Dial (visual part) 11,111 ... Opening 20,120 ... Vibration generator 21 ... Stator 27 ... Rotating shaft 29, 121 ... Weight 123 ... Drive unit 125 ... Case 126 ... Case opening O ... Rotation axis (predetermined axis)

Claims (5)

A vibration generator that generates vibration by displacing the weight,
A visual recognition part that is formed so as to be visible from the outside and has an opening at a position overlapping the weight when viewed from the outside.
A plate-shaped support that supports the vibration generator and
Equipped with
The vibration generator is
With the stator,
A rotating shaft provided so as to be rotatable around an axis parallel to the support with respect to the stator, and
With the weight attached to the rotating shaft,
Equipped with
The support is formed with a weight avoidance portion into which the weight enters.
An electronic device characterized by that. The dimension of the vibration generator in the axial direction of the axis is larger than the maximum dimension of the vibration generator in the radial direction orthogonal to the axial direction.
The vibration generator is arranged so that the radial direction is along the opening direction of the opening.
The electronic device according to claim 1. The maximum dimension of the weight in the radial direction orthogonal to the axial direction of the axis is larger than the maximum dimension of the stator in the radial direction.
The electronic device according to claim 1 or 2, wherein the electronic device is characterized in that. The weight overlaps with the opening during rotation when viewed from a direction orthogonal to the opening direction of the opening.
The electronic device according to any one of claims 1 to 3, wherein the electronic device is characterized by the above. The weight protrudes outward from the visual recognition portion during rotation.
The electronic device according to claim 4, wherein the electronic device is characterized by the above.

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