JPH1084649A - Cylindrical micro vibration motor with terminal bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cylindrical micro vibration motor with a terminal bracket which facilitates replacement and repair of the vibration motor very much. SOLUTION: A cylindrical micro vibration motor 4 obtained by fitting an eccentric weight 3 to a rotating shaft 2 of a cylindrical micromotor 1 is equipped with a conductor 8 coming into electrical contact with a conducting terminal 5-2. An elastic-body bracket 10 for holding the vibration motor holds the vibration motor 4 elastically and the bracket 10 and a motor casing 6 are connected electrically. A holder 12 for holding the vibration motor integrates the elastic-body bracket 10 with an elastic conductor, integrating them from each other electrically by an insulator 14 such as resin. By fitting the vibration motor 4 in the elastic-body bracket 10 for holding the vibration motor, the elastic conductor is brought into elastic contact with the conductor 8 provided at the other end of the micromotor 1 and is connected thereto electrically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical micro-vibration motor with a terminal bracket suitable for a board-mounted type used in a pager or a mobile phone to generate a vibration to indicate that a telephone call has been made. About.

[0002]

2. Description of the Related Art It is desirable that a cylindrical micro-vibration motor can be easily mounted on an electronic circuit board in a pager or a mobile phone as well as an electronic component. Here, in the conventional cylindrical micro vibration motor, when mounting on the board, using a double-sided tape for fixing the motor, or using an elastic bracket for holding the cylindrical micro vibration motor, the electronic circuit mounting board After fixing the cylindrical micro-vibration motor, the lead wires of the motor must be soldered to the board, which is difficult to automate.

As another method, there is a method of forming a cylindrical micro vibration motor into a terminal integrated type. According to this method, the above-mentioned disadvantage can be solved, but if the cylindrical micro vibration motor is broken, it is difficult to remove and repair it.

[0004]

An object of the present invention is to facilitate mounting of a cylindrical micro vibration motor on an electronic circuit mounting board by using a cylindrical micro vibration motor holding holder. By simply attaching the micro vibration motor, the electrical connection between the positive and negative power supply terminals of the cylindrical micro vibration motor and the positive and negative electrodes of the cylindrical micro vibration motor holding holder can be easily performed, and the lead wire To make the soldering work unnecessary, assembling work easy, and even if the cylindrical micro vibration motor is broken, it can be very easily removed from the cylindrical micro vibration motor holding holder. It is an object of the present invention to easily repair the motor.

[0005]

SUMMARY OF THE INVENTION A cylindrical micro-vibration motor 4 having an eccentric weight 3 attached to a rotating shaft 2 projecting from one end of a cylindrical micromotor 1 is provided at the outer periphery of the other end of the cylindrical micromotor 1. Conductive cylindrical micromotor casing 6 with conductive terminals 5-1 exposed at its part
Electrically connected to the cylindrical micro vibration motor 4
Has a conductive terminal 5-2 electrically insulated from the conductive terminal 5-1 at the other end of the cylindrical micromotor 1. A brush holder 7 made of an insulator mounted on the other end of the cylindrical micromotor casing 6 includes a conductor 8 that is in electrical contact with the conductive terminal 5-2.

One of the conductive terminals 5-1 and 5-2 is electrically connected to a brush 9-1 for connecting to the positive power supply terminal side of the cylindrical micromotor 1, and the other is connected to the other. It is electrically connected to a brush 9-2 for connection to the negative power supply terminal side of the cylindrical micromotor 1.

The elastic bracket 10 for holding the cylindrical micro-vibration motor has a pair of cylindrical micro-vibration motor side-side holding pieces 11-1 and 11-2 for holding the side surface of the cylindrical micro-vibration motor 4. When the cylindrical micro vibration motor 4 is mounted on the cylindrical micro vibration motor holding elastic bracket 10, the vibration motor 4 is elastically held, and the bracket 10 and the cylindrical shape are connected to each other. The micro motor casing 6 is electrically connected.

[0008] Holder 1 for holding a cylindrical micro vibration motor
2 is a cylindrical micro-vibration motor clamping elastic body bracket 10 and an elastic conductor 13 which are mutually insulated by an insulator 1 such as resin.
4 to be electrically insulated and integrated. Elastic conductor 1
The cylindrical micro-vibration motor 3 is elastically contacted with the conductor 8 provided at the other end of the cylindrical micro-motor 1 by attaching the cylindrical micro-vibration motor 4 to the elastic bracket 8 for clamping the micro-vibration motor, and electrically connected. It is arranged at the position of the cylindrical micro vibration motor holding holder 12 as shown in FIG. The object of the present invention can be achieved by providing the cylindrical micro vibration motor with the terminal bracket configured as described above.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

(Function) A pair of cylindrical micro-vibrations from the upper end opening of the cylindrical micro-vibration motor holding elastic bracket 10 of the cylindrical micro-vibration motor holding holder 12 of a surface-mountable micro-vibration motor holding holder 12 in a reflow furnace mounted on an electronic circuit mounting board, not shown The cylinder side micro-vibration motor 4 is extended by pushing the motor side-side holding pieces 11-1 and 11-2 against its elasticity, and the vibration motor is placed inside the bracket 10 of the bracket 10 with the side face thereof facing. Insert 4. After the insertion, the elasticity of the holding pieces 11-1 and 11-2 returns to the original position, so that the vibration motor 4 is held at that position.

In the insertion, the holding holder 12
Has a vibration motor axial movement restricting piece 16 formed at one end of the bracket 10 and an elastic conductor 13 formed at the other end, so that the vibration motor 4 can be positioned and held in the holder 12. .

When the vibration motor 4 is positioned and held in the holder 12, the bracket 10 and the cylindrical micromotor casing 6 elastically contact and are electrically connected.
Also, the conductor 8 mounted on the brush holder 7 mounted on the other end of the cylindrical micromotor 1 and the elastic conductor 13 are in electrical contact. The motor casing 6 is in electrical contact with the conductive terminal 5-1. The terminal 5-1 is in electrical contact with the brush 9-1. The brush 9-1 is a rectifier mounted on the rotating armature 17 side. Makes electrical contact with the child 18. The conductor 8 that is in electrical contact with the elastic conductor 13
Are in electrical contact with the conductive terminal 5-2, the conductive terminal 5-2 is in electrical contact with the brush 9-2, and the brush 9-2 is mounted on the rotating armature 17 side. Makes electrical contact with the child 18.

Therefore, a positive power supply electrode and a negative power supply electrode are respectively formed on an electronic circuit mounting board (not shown), and the motor casing 6 is electrically connected to the negative power supply electrode. The elastic conductor and the positive power supply electrode are electrically connected to each other, and the positive power supply and the negative power supply are supplied to the positive power supply electrode and the negative power supply electrode, respectively. The vibration motor 4 can be rotated by supplying power to the rotating armature 17, and the rotation causes the eccentric weight 3 to rotate partially eccentrically to generate vibrations due to centrifugal force. And the case of the mobile phone is vibrated, so that a person who is wearing the pager or the mobile phone is notified of the call by the vibration.

[0013]

One embodiment of the present invention

(First Embodiment) FIG. 1 is a side view of a cylindrical micro-vibration motor 4 having an eccentric weight 3 attached to a rotating shaft 2 projecting from one end of a cylindrical micromotor 1 and a brush holder 7 attached to the other end. FIG. 2 is a vertical cross-sectional view of the vibration motor 4 as viewed from the side. FIG. 2 is an explanatory view showing a case where a conductor 8 is mounted on the outer end of the brush holder 7. FIG. 8 is a longitudinal sectional view of the vibration motor 4 as viewed from the side, FIG. 4 is a drawing of the cylindrical micro vibration motor 4 as viewed from the eccentric weight 3, and FIG. 5 is a cylindrical micro vibration motor holding holder. FIG. 6 is a view when the cylindrical micro vibration motor holding holder 12 is viewed from the other end direction. FIG. 7 is a view when the cylindrical micro vibration motor holding holder 12 is viewed from the other end direction. 4
FIG. 8 is a drawing of a cylindrical micro vibration motor with a terminal bracket attached with a terminal bracket viewed from one end, FIG. 8 is a drawing of the cylindrical micro vibration motor with the terminal bracket viewed from the other end, and FIG. 9 is a cylindrical micro vibration motor. Holding holder 12
10 is a side view of the cylindrical micro-vibration motor holding holder 12, FIG. 11 is a bottom view of the cylindrical micro-vibration motor holding holder 12, and FIG. Micro vibration motor 4
FIG. 4 is a side view of a cylindrical micro vibration motor with a terminal bracket on which a motor is mounted. Hereinafter, with reference to FIGS. 1 to 12,
A description will be given of a cylindrical micro vibration motor with a terminal bracket according to a first embodiment of the present invention.

First, a cylindrical micro vibration motor 4 shown in FIGS. 1 to 3 is used as an example of a cylindrical micro vibration motor suitable for the present invention. Mainly Figure 1
Referring to FIG. 3 to FIG. 3, the cylindrical micro vibration motor 4 has a configuration in which an eccentric weight 3 is attached to a rotating shaft 2 protruding from one end of the cylindrical micro motor 1. As shown in FIG. 4, the eccentric weight 3 has a semicircular shape as viewed from the axial direction, and is made of a high specific heavy metal such as a tungsten alloy.
This is to increase the centrifugal force generated by the eccentric weight 3 rotating eccentrically while performing a partial circular motion, so that a large vibration can be obtained.

As an example of the cylindrical micro motor 1 constituting the cylindrical micro vibration motor 4, one having the structure shown in FIGS. 2 and 3 is used. In this cylindrical micromotor 1, a cylindrical bearing house 19 formed of a magnetic material concentric with the rotating shaft 2 is fixed to one end of a cylindrical micromotor casing 6 made of a magnetic material. , Bearings 20 and 21 are provided to support the rotating shaft 2. The motor casing 6 may be coated with a conductor or formed of a conductor in order to electrically connect all or an appropriate portion thereof to a later-described conductive terminal 5-2.

A cylindrical field magnet 24 is fixed to the outer periphery of the bearing house 19. As the field magnet 24, a cylindrical magnet having two poles having N and S poles along the circumferential direction is used.

A boss 22 is provided at the other end of the rotating shaft 2, and a rotating armature support 23 is fixed to the boss 22, and a rotating armature 17 made of a cylindrical coreless armature is provided around the support 23. The inner periphery of the end is fixed by an appropriate means such as an adhesive. The rotating armature 17 rotates around the outer periphery of the field magnet 24 via a radial gap with the field magnet 24.

A commutator 18 comprising a plurality of commutator pieces is provided concentrically with the rotating shaft 2 around the rotating shaft of the rotating armature support 23.

At the other end of the motor casing 6, a hollow brush holder 7 made of an electrically insulating resin is mounted. The brush holder 7 includes brushes 9-1 and 9 formed of a pair of conductive materials connected to the positive power supply and the negative power supply, respectively.
2 is mounted and slidably contacted with the commutator 18 so as to energize the rotating armature 17. In the figure, only the brush 9-1 is drawn for convenience of the drawing.

The brush 9-1 includes a motor casing 6
Is electrically connected to one end of the conductive terminal 5-1 configured to partially expose the outer periphery of the conductive terminal 5-1. The other end of the conductive terminal 5-1 is electrically connected to a conductor formed on the inner peripheral portion of the motor casing 6.

The brush 9-2 (not shown) is formed in an L-shape with the other end extending to the other end opening 26 of the brush holder 7, and is electrically connected to one end of the conductive terminal 5-1. . The conductive terminal 5-2 is electrically insulated from the conductive terminal 5-1 by the brush holder 7.

On the other end surface of the brush holder 7, there is formed a conductive terminal insertion recess 25 for inserting the conductor 8 for electrically connecting to the conductive terminal 5-2. The conductor 8 has a retaining piece 8A that is inserted into the other end opening 26 of the brush holder 7 separately from the portion that is inserted and accommodated in the recess 25, and a retaining projection 8B is formed on the retaining piece 8A. ing. Therefore, by inserting the conductor 8 with the retaining piece 8A facing the other end opening 26 side, the conductor 8 can be mounted on the other end surface of the brush holder 7 as shown in FIG. The retaining projection 8B engages with a fixed-side portion (not shown) to prevent the conductor 8 from falling off.

The above is the portion of the cylindrical micro vibration motor 4. Next, the cylindrical vibration motor 27 with a terminal bracket will be described with reference to FIGS.

FIGS. 5 to 1 show an elastic bracket 10 for holding a cylindrical micro vibration motor serving as a terminal bracket.
2, the bracket 10 is provided with an upper end opening 2 for holding the side surface of the cylindrical micro vibration motor 4.
7 has a pair of cylindrical micro vibration motor holding pieces 11-1 and 11-2 formed of a pair of conductive materials having elastic force (see FIGS. 5 to 8).

This elastic bracket 10 for holding the motor is
The pair of holding pieces 11-1 and 11-2 are pushed open, and the motor 4 is elastically inserted into the bracket 10 with the motor 4 facing the side face as shown in FIG. In the bracket 10, and the bracket 10 and the motor casing 6 are electrically connected. When the motor 4 is mounted as described above (FIGS. 7 and 8)
The vibration motor axial direction movement restricting pieces 16 are formed integrally with the holding pieces 11-1 and 11-2 at both ends so that the motor 4 does not move in the axial direction.

[0026] Cylindrical micro vibration motor holding holder 12
Referring to FIGS. 5 to 12, the bracket 10 and the elastic conductor 13 are electrically insulated and integrated with each other by molding an insulator, for example, a resin 14, at a lower portion thereof. The elastic conductor 13 is molded and fixed at the other end of the resin 14. This elastic conductor 1
Reference numeral 3 denotes a part 13A that is in electrical contact with the conductor 8 mounted on the other end of the motor 4 when the motor 4 is mounted in the bracket 10, and the holding holder 12 is mounted on the electronic circuit board 1.
5 has an extended portion 13B that extends to a position where it contacts the printed pattern surface formed on the substrate 15 when it is mounted on the substrate 5 and makes electrical conduction. As described above, the cylindrical micro-vibration motor holding elastic bracket 10 is configured.

A pair of cylindrical micro-vibration motor side holding members 11-1, 11 are opened from the upper end opening of the cylindrical micro-vibration motor holding elastic bracket 10 of the cylindrical micro-vibration motor holding holder 12 mounted on the electronic circuit mounting board. -2 is pushed out against its elasticity, and the cylindrical micro-vibration motor 4 is placed on the bracket 1 with its side facing.
Then, the vibration motor 4 is inserted into the bracket 10. After the insertion, the elasticity of the holding pieces 11-1 and 11-2 returns to the original position, so that the vibration motor 4 is held at that position.

Therefore, first, since the vibration motor axial movement restricting piece 16 is formed on the bracket 10, when the vibration motor 4 is positioned and held in the holder 12, the bracket 10 and the cylindrical micromotor casing 6 are connected. It is elastically contacted and electrically connected. Also, the conductor 8 mounted on the brush holder 7 mounted on the other end of the cylindrical micromotor 1 and the elastic conductor 13 are in electrical contact. The motor casing 6 is in electrical contact with the conductive terminal 5-1. The terminal 5-1 is in electrical contact with the brush 9-1. The brush 9-1 is a rectifier mounted on the rotating armature 17 side. Makes electrical contact with the child 18. Elastic conductor 13
The conductor 8 that is in electrical contact with the conductive terminal 5-2
The conductive terminal 5-2 is in electrical contact with the brush 9-2, and the brush 9-2 is in electrical contact with the commutator 18 mounted on the rotating armature 17. I do.

For this purpose, a cylindrical micro vibration motor with a terminal bracket is provided at a predetermined position on an electronic circuit mounting board, and a positive power supply electrode and a negative power supply electrode are formed on the electronic circuit mounting board, respectively. For example,
The motor casing 6 is electrically connected to the negative power supply electrode, and the positive power supply electrode in contact with the extension portion 13B of the elastic conductor 13 is electrically connected to the positive power supply electrode. By supplying a positive power supply and a negative power supply to each of the negative power supply electrodes, power can be supplied to the rotating armature 17 to rotate the vibration motor 4, and the rotation causes the eccentric weight 3 to partially rotate. Since the eccentric rotation causes vibration due to centrifugal force to vibrate the housing of the pager or mobile phone via the electronic circuit mounting board 15, the vibration of the pager or mobile phone is caused by the vibration. Tell them you have a phone call.

(Second Embodiment) A second embodiment of the present invention will be described with reference to FIGS. Note that the description of the parts common to the first embodiment is redundant, and will be omitted with reference to the above description.

Referring to FIG. 13, in the second embodiment, a U-shaped elastic conductor 13 'is used as a cylindrical micro vibration motor holding holder 12'. In order to enhance the contact with the conductor 8, the elastic conductor 13 'has a U-shaped portion 13'A in contact with the conductor 8, which is further extended and bent. 'B can be brought into contact with an unillustrated power supply electrode portion formed on the electronic circuit mounting board 15 to which the cylindrical micro vibration motor holding holder 12' is attached.

FIG. 14 is a side view of the cylindrical micro vibration motor with the terminal bracket formed by being attached to the electronic circuit mounting board 15, and is a view as seen from the end direction of the cylindrical micro vibration motor with the terminal bracket. As shown in FIG. The operation and effect are the same as those of the first embodiment, so that the details are omitted.

(Effect) Therefore, according to the cylindrical micro-vibration motor with the terminal bracket of the present invention, it can be mounted on the electronic circuit mounting board very easily. Since the cylindrical micro vibration motor itself can be easily removed from the holding holder, replacement and repair of the cylindrical micro vibration motor become extremely easy.

[Brief description of the drawings]

FIG. 1 is a side view of a cylindrical microvibration motor in which an eccentric weight is attached to a rotation shaft protruding from one end of a cylindrical micromotor and a brush holder is attached to the other end.

FIG. 2 is a vertical cross-sectional view as viewed from a side of the vibration motor, and is an explanatory diagram when a conductor is mounted on an outer end of a brush holder.

FIG. 3 is a vertical cross-sectional view of the vibration motor when a conductor is attached to an outer end of the brush holder, as viewed from a side surface.

FIG. 4 is a drawing when the cylindrical micro vibration motor is viewed from an eccentric weight side.

FIG. 5 is a drawing when the cylindrical micro vibration motor holding holder is viewed from one end direction.

FIG. 6 is a drawing when the cylindrical micro vibration motor holding holder is viewed from the other end direction.

FIG. 7 is a drawing of a cylindrical micro vibration motor with a terminal bracket in which a cylindrical micro vibration motor is mounted on a cylindrical micro vibration motor holding holder when viewed from one end.

FIG. 8 is a drawing of the cylindrical micro vibration motor with the terminal bracket viewed from the other end direction.

FIG. 9 is a top view of a cylindrical micro vibration motor holding holder.

FIG. 10 is a side view of the cylindrical micro-vibration motor holding holder.

FIG. 11 is a bottom view of the cylindrical micro vibration motor holding holder.

FIG. 12 is a side view of a cylindrical micro vibration motor with a terminal bracket in which a cylindrical micro vibration motor is mounted on a cylindrical micro vibration motor holding holder.

FIG. 13 is a side view of a cylindrical micro vibration motor holding holder according to a second embodiment of the present invention.

FIG. 14 is a side view of a cylindrical micro-vibration motor with a terminal bracket in which the cylindrical micro-vibration motor is mounted on the cylindrical micro-vibration motor holding holder.

FIG. 15 is a drawing of a cylindrical micro vibration motor with a terminal bracket, in which the cylindrical micro vibration motor is mounted on the cylindrical micro vibration motor holding holder, as viewed from the other end surface direction. (Description of Signs) 1 Cylindrical Micromotor 2 Rotary Shaft 3 Eccentric Weight 4 Cylindrical Micro Vibration Motor 5-1, 5-2 Conductive Terminal 6 Cylindrical Micromotor Casing 7 Brush Holder 8 Conductor 8A Retainer 8B Retainer Projection 9-1, 9-2 Brush 10 Elastic bracket for holding cylindrical micro-vibration motor 11-1, 11-2 Side holding piece for cylindrical micro-vibration motor 12, 12 'Holder for holding cylindrical micro-vibration motor 13, 13' Elastic conductor 14 Insulator 15 Electronic circuit board 16 Vibration motor axial movement restricting piece 17 Rotating armature 18 Commutator 19 Bearing house 20, 21 Bearing 22 Boss 23 Rotating armature support 24 Field magnet 25 Insertion of conductive terminal Recess 26 Opening at the other end 27 Opening at the upper end

Claims (1)

[Claims] 1. A cylindrical micro-vibration motor with a terminal bracket, comprising: A cylindrical micro-vibration motor (4) having an eccentric weight (3) attached to a rotating shaft (2) protruding at one end of a cylindrical micromotor (1) is a cylindrical micromotor (1).
Electrically connected to a conductive cylindrical micromotor casing (6) having a conductive terminal (5-1) exposed at the outer periphery of the other end of the motor. The cylindrical micro-vibration motor (4) includes a conductive terminal (5-2) electrically insulated from the conductive terminal (5-1) at the other end of the cylindrical micro-motor (1). A brush holder (7) made of an insulator attached to the other end of the cylindrical micromotor casing (6) is a conductor (8) that is in electrical contact with the conductive terminal (5-2).
That you have. One of the conductive terminal (5-1) and the conductive terminal (5-2) is electrically connected to a brush (9-1) for connecting to the positive power supply terminal side of the cylindrical micromotor (1). And the other is electrically connected to a brush (9-2) for connecting to the negative power supply terminal side of the cylindrical micromotor (1). The cylindrical micro-vibration motor holding elastic bracket (10) includes a pair of cylindrical micro-vibration motor side holding members (11-1, 11-2) for holding the side surface of the cylindrical micro-vibration motor (4). The vibration motor (4) is elastically mounted by attaching the cylindrical micro vibration motor (4) to the cylindrical micro vibration motor holding elastic bracket (10). The bracket (10) is electrically connected to the cylindrical micromotor casing (6). Holder for holding a cylindrical micro vibration motor (12)
Is that the elastic bracket (10) for holding the cylindrical micro vibration motor and the elastic conductor (13) are electrically insulated and integrated with each other by an insulator (14) such as a resin. The elastic conductor (13) is provided on the other end of the cylindrical micromotor (1) by mounting the cylindrical microvibration motor (4) on the cylindrical microvibration motor clamping elastic bracket (8). It is arranged at the position of the cylindrical micro vibration motor holding holder (12) which makes elastic contact with the body (8) and is electrically connected.