JPH08140301A - Power-supply device for flat motor - Google Patents

Abstract

PURPOSE: To provide a thin solderless contact system as the power-supply device for a flat vibrating motor which is mounted on a portable apparatus, especially on a pager or the like. CONSTITUTION: A flat boardlike power-supply terminal part 3 is derived from the side part of a flat motor M. One pair of coil spring contacts 4a, 4b which have been plated with a noble metal are brought, from the axial direction, into contact with a power supply terminal for the power supply terminal part 3. Preferably, an insulator is installed between the motor and the spring contacts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat motor power supply device mounted on a portable device such as a pager, and can contribute to the thinning of the device.

[0002]

2. Description of the Related Art Many electronic components mounted on recent portable devices are of chip type and are wired on a printed wiring board by reflow soldering. For parts that cannot be reflowed, they are wired by hand or by a connector. The hand soldering method is often used as a connector method or a solderless contact method because it requires a lot of work and poor after-maintenance.

A motor-type vibrating body utilizing centrifugal force is used as a silent source for a pager and a mobile phone.
Conventionally, as a contact type power supply device for these vibration motors, there is one as shown in FIG. That is, the flat motor M is placed on the holder H via the rubber cushion C, and the electrode pattern E1 plated with a noble metal on the upper surface of the flat motor M,
The printed wiring board P1 on which E2 is formed is fixed, and the rubber holder G is covered from above. One end of a pair of noble metal plated coil spring contacts S1 and S2 is inserted into the rubber holder G so as to press the electrode patterns E1 and E2 with appropriate pressure. In the figure, P2 is a main board for arranging electronic parts, and the coil spring contacts S1, S
Electrode patterns E3 and E4 for supplying power to the other end of 2 are formed. K1 and K2 are a case and a lid constituting the pager housing. In this way, the flat motor M is adapted to be supplied with electric power in a solderless manner only by fitting it to the holder H via the cushion C and covering the housing K1 with the lid K2.

[0004]

However, since the flat motor configuration is such that the coil spring contacts S1 and S2 are supplied to the upper surface of M in this manner, a flat motor with a bent angle can be obtained, as can be judged from the drawings. While adopting, there is a drawback that the entire device becomes thick.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to reduce the thickness of a power feeding device for a flat vibration motor mounted on a portable device, particularly a pager, etc., while using a solderless contact method, thereby reducing the thickness of the entire portable device.

[0006]

According to the invention as set forth in claim 1, the flat motor-shaped feed terminal portion is led to the side of the flat motor body, and the flat motor is moved horizontally. This can be achieved by fitting it in a holder to prevent it, and contacting a power supply terminal arranged in the power supply terminal portion with a spring contact having at least a noble metal on its surface, and supplying power by this spring contact. Specifically, as in the invention as set forth in claim 2, the spring contact is made of a coil spring and can be achieved by slidingly contacting the power supply terminal in the axial direction. More specifically, it can be achieved by interposing an insulator between the motor case and the spring contact as in the invention described in claim 3.

[0007]

According to the means for achieving the above-mentioned object, since the space on the side of the flat motor is used,
Since the power feeding device itself is stored laterally, it can be made thin.
According to the task achieving means described in claim 2, since the contact is made from the axial direction, the side right of the motor case can be used, and the space occupancy rate on the side of the power supply device can be reduced. According to the problem achievement means described in claim 3, fixing of the motor and insulation of the motor case can be solved at once.

[0008]

[First Embodiment] FIG. 1 is a cross-sectional view of a main portion of a first embodiment of the present invention. A flat motor M is a bracket 1 as shown in a perspective view of FIG. Is provided, and the power supply terminal portion 3 made of a flexible substrate is provided on the protruding portion 2.
Is formed, and a pair of gold-plated power supply terminals 3a, 3b are formed on the pair of printed and printed surfaces. Such a flat motor is installed in a portable device as shown in FIG.
As shown in FIG. 3, the holder K is fitted in a synthetic resin holder H integrated with the case K1, and a rubber holder G is covered and fixed from above.

To energize the power feeding terminal portion 3, one free end of the spring contacts 4a and 4b, which are coil springs plated with a noble metal through the rubber holder G, come into contact with each other when assembled to the power feeding terminals 3a and 3b. The other free ends of the spring contacts 4a and 4b are brought into contact with the electrodes 5a and 5b of the printed wiring board 5 for another circuit. In the figure, K2 is a lid of a portable device, and 6 is an insulator integrated with a holder H that serves to ensure insulation between the spring contacts 4a and 4b and the motor M. In this case, the flat motor M is fitted into the holder H, the pair of spring contacts 4a and 4b is passed through the rubber holder, and the lid K2 is simply covered to function as a power supply device.

[0010]

[Other Embodiments] In the first embodiment, the protruding portion 2 is provided on the outside of the bracket 1. However, as long as it has a flat plate shape, it may be used as a power supply terminal portion of a flexible substrate only, or a printed wiring iron. The insulator 6 may be formed of a substrate so as to be the same body as the bracket, and the insulator 6 may be a holder different from the holder H and made of, for example, polyester tape and attached to the side periphery of the flat motor M. Furthermore, from the axial direction, the spring contact 4
Instead of contacting a and 4b, a connector system may be adopted in the radial direction.

[0011]

As described above, according to the present invention, since the side of the flat motor is used as the power feeding device, a thin solderless connection (contact) type power feeding device can be provided. Therefore,
It can contribute to making mobile devices thinner.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of an embodiment of a flat motor power supply device according to the present invention.

FIG. 2 is an assembled perspective view of a power feeding device of the motor.

FIG. 3 is a cross-sectional view of a main part of a conventional flat motor power feeding device.

[Explanation of symbols]

 M flat motor 1 bracket 3 power supply terminal part 3a, 3b power supply terminal H holder K1 case G rubber holder 4a, 4b spring contact

Claims (3)

[Claims] 1. A flat plate-shaped power supply terminal portion is led out to the side of the flat motor, and the flat motor M is fitted into a holder for preventing horizontal movement, and at least a noble metal is attached to the power supply terminal arranged in the power supply terminal portion. A flat motor power supply device in which a spring contact provided on the surface is brought into contact with and power is supplied by the spring contact. 2. The power supply device for a flat motor according to claim 1, wherein the spring contact is made of a coil spring and is brought into contact with the power supply terminal in the axial direction. 3. The power supply device for a flat motor according to claim 1, wherein an insulator is interposed between the motor and the spring contact.