JP2003032954A - Battery-driven apparatus with electromagnetic vibrator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery-driven apparatus, having high electrical and mechanical reliability by completely retaining an electromagnetic vibrator on the housing of the apparatus and improving ease of incorporating it into the apparatus. SOLUTION: This apparatus includes a feeding terminal 13, electrically connected to a feeding land of the apparatus by being protruded from the case 12 of a vibrating motor 10, and an elastic body 20 covering at least part of the case 12. By ensuring pressure allowances of the elastic body 20 and the housing 14 storing it, so that they become more than 0.1 mm in any of X, Y and Z directions, the battery-driven apparatus with high electrical and mechanical reliability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery-driven device mainly used for portable electronic devices, and more particularly to a holding structure for the device.

[0002]

2. Description of the Related Art Some portable information devices such as battery-powered devices (hereinafter referred to as devices), especially mobile phones and PIM (personal information management) devices have a function of transmitting information by vibrating sensation. When attaching an electromagnetic vibrating body to a device, a method of attaching via an elastic body is often used. The present invention relates to a method for holding an electromagnetic vibrating body in a device having a structure in which an electromagnetic vibrating body is attached via an elastic body. As one example thereof, the one disclosed in Japanese Patent Laid-Open No. 2000-78790 is cited and shown in FIG. In the figure, the electromagnetic vibrating body projects from the case 83 and the power feeding land 93 of the device.
A power supply terminal 84 that is electrically connected to the case and an elastic body 85 that covers the case 83 are provided, and an elastic pressing body 86 that is compressively deformable is formed on a part of the elastic body. When assembled in a device, the elastic pressing body 86 presses the power feeding terminal 84 against the power feeding land 93 by pressing the case, so that the elastic force of the power feeding terminal 84 and the pressing force of the elastic pressing body 86 are combined. In this way, both the holding of the electromagnetic vibrating body and the electrical connection are made compatible.

Recently, there has been an increasing demand for miniaturization and thinning of equipment, and for electromagnetic vibrating bodies, there is a growing demand for smaller and thinner electromagnetic vibrating bodies. In addition, the same amount of vibration as in the past is required. Retention methods have become very important. That is, if the housing of the device and the electromagnetic vibrator covered with the elastic body are set loosely, not only the electromagnetic vibrator dances in the housing to generate noise, but also the reliability of the electrical connection deteriorates. Because you will come.

[0004]

The present invention solves such a problem. That is, when the electromagnetic vibrating body is incorporated into the housing of the device, the workability of incorporating the device is improved and the device is reliably held to improve the reliability of the device.
It is an object of the present invention to provide a battery-operated device having excellent mechanical reliability.

[0005]

In order to achieve the above object, a battery-operated device according to claim 1 of the present invention comprises a rotating shaft, an eccentric weight attached to the rotating shaft, a substantially cylindrical case, and a case. An electromagnetic vibrating body having a power feeding terminal protruding from the case and electrically connected to a power feeding land of a device, at least a part of the case being covered with an elastic body, a housing for housing and fixing the electromagnetic vibrating body, and the power feeding. A substrate having a land, the electromagnetic vibrating body covered with the elastic body is press-fitted into the casing at both axial end faces and both side faces of the electromagnetic vibrating body, and the bottom face of the casing and the substrate. A battery-operated device which is sandwiched between and fixed by, and has a press-fitting margin of 0.1 m on both axial end surfaces and both lateral surfaces of the electromagnetic vibrating body.
It is a battery-driven device having a thickness of m or more and a clearance between the bottom surface of the housing and the substrate set to 0.1 mm or more.

According to this, the electromagnetic vibrating body is securely held in the housing without play. Therefore, the problem that the electromagnetic vibrating body dances in the housing does not occur, and the reliability of the device is improved.

Further, the power feeding terminal of the electromagnetic vibrating body and the power feeding land can be stably contacted in the housing. Therefore, the electromagnetic vibrating body is held in the housing without play, and the electrical contact is stable.

The electromagnetic vibrator according to claim 2 of the present invention is
A rib for press-fitting and holding the electromagnetic vibrating body at a position corresponding to both axial end surfaces or both side surfaces of the electromagnetic vibrating body in a portion of the housing for accommodating and fixing the electromagnetic vibrating body or at least a part of a bottom surface of the casing. 1. Formed at one or more locations.
It is the battery-powered device described. According to this, since the electromagnetic vibrating body is held by the ribs, the electromagnetic vibrating body can be easily press-fitted into the housing, and the assembling workability can be improved while exhibiting the above-described effects.

The electromagnetic vibrator according to claim 3 of the present invention is
The battery-driven device according to claim 1, wherein a rib is formed in a part of a portion of the elastic body that is press-fitted into the housing. According to this, since the electromagnetic vibrating body is held by the ribs, the electrical and mechanical reliability is excellent as in the case where the ribs are formed on the housing, and the assembling workability can be improved.

The electromagnetic vibrating body according to claim 4 of the present invention is
The battery driven device according to any one of claims 1 to 3, wherein the elastic body is synthetic rubber. by this,
A terminal pressing structure having an insulating property and a vibration damping property can be easily obtained, and at the same time, the elastic body becomes rich in extensional deformability.

[0011]

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

(Embodiment 1) FIG. 1 is an external view of an electromagnetic vibrator incorporated in a housing according to Embodiment 1 of the present invention. (A) is a top view of an electromagnetic vibrating body, (b) is a top view of a housing, (c) is a top view of the assembled state, (d) is a side view of the assembled state.

In FIG. 1, an eccentric weight 11 is attached to the shaft of the vibration motor 10. A motor mechanism for rotationally driving the shaft is housed in the case 12. A leaf spring-shaped power supply terminal 13 projects from one end of the case 12. A boot 20 (elastic body) made of synthetic rubber is attached to the case 12.

The electromagnetic vibrating body assembled in this manner is incorporated in the device in the same manner as shown in the conventional example. The device has a housing 14 for accommodating and fixing the electromagnetic vibrating body, and after the electromagnetic vibrating body is press-fitted and fixed in the housing 14, the housing 1
The electromagnetic vibrating body is fixed by being sandwiched between the bottom surface of 4 and the substrate 15. A power supply land (not shown) is provided on the substrate 15 and is crimped to the power supply terminal 13 to supply power. When the vibration motor 10 rotates, the vibration is transmitted to the device via the boot 20 and the housing 14 to notify the vibration.

When the boot 20 is press-fitted, the inner diameter of the housing 14 is set so that the press-fitting margin in the axial direction (X direction) and the press-fitting margin in both side surface directions (Y direction) are 0.1 mm or more. I am doing it.

Further, the press-fitting margin for sandwiching the bottom surface of the housing 14 and the substrate 15 (Z direction) is set to be 0.1 mm or more. That is, if the size of the boot 20 in the X direction is Pm
m, the X-direction dimension of the housing 14 is (P-0.1) m.
Set to m or less. Similarly, assuming that the Y-direction dimension of the boot 20 is Q mm, the Y-direction dimension of the housing 14 is (Q-0.
1) If the size of the boot 20 in the Z direction is Rmm or less,
Then, the Z-direction gap dimension between the housing 14 and the substrate 15 is set to (R-0.1) mm or less.

As described above, in this embodiment, the press-fitting margins of the electromagnetic vibrating body and the housing 14 are set to be 0.1 mm or more in each of the X, Y, and Z directions. According to this, the electromagnetic vibrating body is provided in the housing 14 and the substrate 1.
By means of 5, it can be securely fixed. Therefore,
The electromagnetic vibrating body is firmly fixed without any play in the housing 14, and the problem such as the electromagnetic vibrating body dancing in the device does not occur, and the reliability of the device is improved. Further, since the electromagnetic vibrating body is firmly and securely fixed to the housing 14,
It is possible to obtain a great effect against the drop impact resistance required for battery-powered equipment.

Further, in this embodiment, two or more ribs 16 are formed in one of the X direction, the Y direction, and the Z direction, or in two or three directions inside the housing 14 for housing the boot 20. There is. According to this, since the rib 16 holds the electromagnetic vibrating body, the casing 1 of the electromagnetic vibrating body is held.
Since the contact area is reduced at the time of press-fitting into No. 4, the friction coefficient is reduced, and the workability in assembling can be improved.

Further, in this embodiment, ribs are formed on a part of the boot 20 instead of forming inside the housing 14. According to this, since the electromagnetic vibrating body is held by the ribs 16, the contact area is reduced when the electromagnetic vibrating body is press-fitted into the housing 14, so that the friction coefficient is lowered, and the assembling workability can be improved.

In the present embodiment, the boot 20 is made of synthetic rubber. As a result, a terminal pressing structure having an insulating property and a vibration damping property can be easily obtained, and at the same time, the boot 20 becomes rich in extensional deformability. Further, when it is feared that the holding accuracy is lowered due to the deformable shape, the hardness can be easily changed.

(Embodiment 2) FIGS. 2 and 3 show various application modifications of the shape (mainly the shape of the power supply terminal) of the vibration motor according to the present invention. The motor shape of FIG. 2 is a shape in which the power supply terminal 33 extends in the direction opposite to the case direction of the motor body. According to this, the rib position can be freely set, and the assembling workability can be easily performed while realizing the reliable fixing.

The motor shape of FIG. 3 is a shape in which the power supply terminal 53 is formed on the bracket and an elastic body is not used for the electric connection portion. According to this, the shape of the elastic body can be simply configured, the dimensional accuracy of the elastic body can be easily set, and the press-fitting margin can be set accurately.

Although some embodiments of the present invention have been described above, needless to say, the present invention is not limited to the above-mentioned embodiments, and various applications and developments are possible within the scope of the gist of the present invention. .

[0024]

As is apparent from the above description, according to the present invention, when the electromagnetic vibrating body is incorporated in the housing of the equipment, the workability of incorporating the equipment is improved and reliably held to improve the reliability of the equipment. By increasing it, it is possible to provide a battery-driven device having excellent electrical and mechanical reliability.

[Brief description of drawings]

FIG. 1 is an external view of an electromagnetic vibrating body and a casing according to a first embodiment of the present invention (a) a top view of the electromagnetic vibrating body (b) a top view of the casing (c) a top view of the assembled state (D) Side view of the assembled state

FIG. 2 is an external view of an electromagnetic vibrating body and a housing according to Embodiment 2 of the present invention (a) a top view of the assembled state (b) a side view of the assembled state

FIG. 3 is an external view of an electromagnetic vibrating body and a casing according to the second embodiment of the present invention (a) a top view of the assembled state (b) a side view of the assembled state

FIG. 4A is an explanatory view of a mounting structure of an electromagnetic vibrating body according to a conventional example. FIG. 4B is an explanatory view of a mounting structure of an electromagnetic vibrating body according to a conventional example.

[Explanation of symbols]

10, 40, 60 Vibration motor 11, 31, 51 Eccentric weight 12, 32, 52 cases 13, 33, 53 power supply terminals 14, 34, 54 housing 15, 35, 55 substrate 16 ribs 20, 30, 50, 85 Boots (elastic body) 86 Elastic pressing body

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuaki Sato             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F term (reference) 5D107 AA11 AA13 BB08 CC08 CD10                       DD09                 5H605 BB05 CC06 CC10 DD09 EA11                       EC07 EC20                 5K023 AA07 BB04 HH05 LL01 NN07                       QQ04 RR08

Claims (4)

[Claims] 1. A rotary shaft, an eccentric weight attached to the rotary shaft, a substantially cylindrical case, and a power supply terminal projecting from the case and electrically connected to a power supply land of a device,
An electromagnetic vibrating body that includes an electromagnetic vibrating body in which at least a part of the case is covered with an elastic body, a housing that houses and fixes the electromagnetic vibrating body, and a substrate having the power feeding land, and is covered with the elastic body. Is a battery-driven device in which both ends and both side faces in the axial direction of the electromagnetic vibrating body are press-fitted into the casing and sandwiched between the bottom surface of the casing and the substrate and fixed. A battery-operated device in which the press-fitting margin on both axial end surfaces and both lateral surfaces is 0.1 mm or more, and the clamping margin between the bottom surface of the housing and the substrate is 0.1 mm or more. 2. A position corresponding to both axial end surfaces or both side surfaces of the electromagnetic vibrating body in a portion of the housing for housing and fixing the electromagnetic vibrating body, or at least a part of a bottom surface of the casing,
The battery-driven device according to claim 1, wherein at least one rib for press-fitting and holding the electromagnetic vibrator is formed. 3. The battery-driven device according to claim 1, wherein a rib is formed on a part of a portion of the elastic body that is press-fitted into the housing. 4. The battery-driven device according to claim 1, wherein the elastic body is synthetic rubber.