Abstract: A brushless motor, comprising a rotor having a magnet, a coil for generating a magnetic field for drivingly rotating the rotor, and a power supply terminal for supplying a power to the coil from outside, wherein all electrical connection parts ranging from the power supply terminal to the end of the coil are connected to each other through welded parts.

Abstract: A motor includes a motor-base-holder which comprises (a) a base, (b) a bearing supporter vertically protruded from the base for supporting a bearing, (c) a stator supporter concentric with the bearing supporter for being mounted with a stator, (d) a motor base having terminals made of a metal plate and insert-molded around the bearing supporter, and (e) a frame made of the same metal as the terminals and linked to fringe of the motor base. This structure solves difficulties of mini-motors such as difficulties of handling the motor, difficulties of mating those elements each other, and time-consuming bonding action. A method of assembling the same motor achieves high productivity.

Abstract: A motor includes a motor-base-holder having (a) a base, (b) a bearing supporter vertically protruded from the base for supporting a bearing, (c) a stator supporter concentric with the bearing supporter for being mounted with a stator, (d) a motor base having terminals made of a metal plate and insert-molded around the bearing supporter, and (e) a frame made of the same metal as the terminals and linked to fringe of the motor base. This structure solves difficulties of mini-motors such as difficulties of handling the motor, difficulties of mating those elements each other, and time-consuming bonding action. A method of assembling the same motor achieves high productivity.

Abstract: A motor includes a surface mountable motor base having (a) a base, (b) a bearing supporter extending from the base for supporting a bearing, (c) a stator supporter concentric with the bearing supporter for supporting a stator, and (d) a terminal for connection to a winding of the stator, the terminal exposed on a bottom of the motor base and extending substantially parallel to the base. This structure solves difficulties of mini-motors such as difficulties of handling the motor, difficulties of mating those elements with each other, and time-consuming bonding. A method of assembling the same motor achieves high productivity.

Abstract: A bearing supporter and stator supporter concentric with the bearing supporter and for being mounted with a stator assembly are provided on a motor base. Around the bearing supporter, lower faces of metal terminals are exposed from a bottom face of a base section. The stator assembly is fit on and fixed to the stator supporter. Further the motor base has a stator stopper protruded from the base section, and the stator stopper faces closely a lower end face of an outer wall of the stator assembly in axial direction. This structure allows a motor to be reflow-soldered to a board of an apparatus using this motor, and increases impact-resistance against radial load and thrust load applied to a radial and thrust bearings, a coupling section of the bearing supporter and the motor base, a coupling section of a shaft, a coupling section of the motor and the apparatus.

Abstract: A brushless motor, comprising a rotor having a magnet, a coil for generating a magnetic field for drivingly rotating the rotor, and a power supply terminal for supplying a power to the coil from outside, wherein all electrical connection parts ranging from the power supply terminal to the end of the coil are connected to each other through welded parts.

Abstract: A motor includes a stator and a rotor facing the stator. The rotor has a magnet and an eccentric weight. The magnet is magnetized in a rotational direction and produces driving magnetic field. The eccentric weight is made of the material having a greater specific gravity than the magnet. The magnet shapes in a cylinder and a part of the cylinder is cut away to form a space. The eccentric weight is placed in the space. A rotational area of the magnet and that of the eccentric weight overlap each other. In this structure, rotation of the rotor spins the eccentric weight, thereby producing large vibrations. The eccentric weight is accommodated by a motor housing for the safety. The thin and compact motor is thus obtainable.

Abstract: A motor includes a rotor, a stator facing to the rotor, a motor-base-assembly for journaling the rotor and holding the stator. The motor-base-assembly is made of resin and includes a motor-base having openings and terminals made of metal. These terminals are inserted into the openings to be mated with the motor-base, and lower faces of the terminals are exposed from the bottom of the motor-base. This structure allows the terminals to be mated with the motor-base without using an insert-molding method, and permits high productivity of the motor. This advantage appears conspicuously in such a small motor, among others, as can be directly re-flow soldered to a board of a device. The device employing this motor enjoys high productivity and reliability because the motor can be directly re-flow soldered to the board of device.

Abstract: An electromagnetic vibrator includes a vibration generating mechanism; a case for containing at least part of the vibration generating mechanism; a power supply terminal for supplying power to the vibration generating mechanism, protruding from the case; an elastic body covering at least part of the case; and an elastic pressing body deformable under pressure, formed in part of the elastic body. When the electromagnetic vibrator is incorporated into a device, part of the device presses the case. Correspondingly, the elastic pressing body presses the power supply terminal toward a power supply land disposed on the device side, and the power supply terminal contacts the power supply land thereby electrically connecting itself to the power supply land. With this construction is provided a highly reliable electromagnetic vibrator and device incorporating the electromagnetic vibrator with electric connections having high vibration resistance and impact resistance.

Abstract: A motor includes (a) a stator having a stator core wound with a coil, (b) a rotor having a magnet facing the stator core via an annular space and a yoke disposed on an outer wall of the magnet, and (c) an unbalancing weight disposed on an outer wall of the yoke. This structure allows the motor to be small in size, light in weight, thin, flat and to function as a vibrating motor producing maximum vibration at low power consumption. The motor thus contributes to realizing a portable device with a small size, a low weight, and which is operable for many hours.

Abstract: A motor includes a motor-base-holder which comprises (a) a base, (b) a bearing supporter vertically protruded from the base for supporting a bearing, (c) a stator supporter concentric with the bearing supporter for being mounted with a stator, (d) a motor base having terminals made of a metal plate and insert-molded around the bearing supporter, and (e) a frame made of the same metal as the terminals and linked to fringe of the motor base. This structure solves difficulties of mini-motors such as difficulties of handling the motor, difficulties of mating those elements each other, and time-consuming bonding action. A method of assembling the same motor achieves high productivity.

Abstract: A motor includes a motor-base-holder which comprises (a) a base, (b) a bearing supporter vertically protruded from the base for supporting a bearing, (c) a stator supporter concentric with the bearing supporter for being mounted with a stator, (d) a motor base having terminals made of a metal plate and insert-molded around the bearing supporter, and (e) a frame made of the same metal as the terminals and linked to fringe of the motor base. This structure solves difficulties of mini-motors such as difficulties of handling the motor, difficulties of mating those elements each other, and time-consuming bonding action. A method of assembling the same motor achieves high productivity.

Abstract: A motor includes a stator and a rotor facing the stator. The rotor has a magnet and an eccentric weight. The magnet is magnetized in a rotational direction and produces driving magnetic field. The eccentric weight is made of the material having a greater specific gravity than the magnet. The magnet shapes in a cylinder and a part of the cylinder is cut away to form a space. The eccentric weight is placed in the space. A rotational area of the magnet and that of the eccentric weight overlap each other. In this structure, rotation of the rotor spins the eccentric weight, thereby producing large vibrations. The eccentric weight is accommodated by a motor housing for the safety. The thin and compact motor is thus obtainable.

Abstract: A bearing supporter and stator supporter concentric with the bearing supporter and for being mounted with a stator assembly are provided on a motor base. Around the bearing supporter, lower faces of metal terminals are exposed from a bottom face of a base section. The stator assembly is fit on and fixed to the stator supporter. Further the motor base has a stator stopper protruded from the base section, and the stator stopper faces closely a lower end face of an outer wall of the stator assembly in axial direction. This structure allows a motor to be reflow-soldered to a board of an apparatus using this motor, and increases impact-resistance against radial load and thrust load applied to a radial and thrust bearings, a coupling section of the bearing supporter and the motor base, a coupling section of a shaft, a coupling section of the motor and the apparatus.

Abstract: An electromagnetic vibrator includes a vibration generating mechanism; a case for containing at least part of the vibration generating mechanism; a power supply terminal for supplying power to the vibration generating mechanism, protruding from the case; an elastic body covering at least part of the case; and an elastic pressing body deformable under pressure, formed in part of the elastic body. When the electromagnetic vibrator is incorporated into a device, part of the device presses the case. Correspondingly, the elastic pressing body presses the power supply terminal toward a power supply land disposed on the device side, and the power supply terminal contacts the power supply land thereby electrically connecting itself to the power supply land. With this construction is provided a highly reliable electromagnetic vibrator and device incorporating the electromagnetic vibrator with electric connections having high vibration resistance and impact resistance.

Abstract: An electromagnetic vibrator includes a vibration generating mechanism; a case for containing at least part of the vibration generating mechanism; a power supply terminal for supplying power to the vibration generating mechanism, protruding from the case; an elastic body covering at least part of the case; and an elastic pressing body deformable under pressure, formed in part of the elastic body. When the electromagnetic vibrator is incorporated into a device, part of the device presses the case. Correspondingly, the elastic pressing body presses the power supply terminal toward a power supply land disposed on the device side, and the power supply terminal contacts the power supply land thereby electrically connecting itself to the power supply land. With this construction is provided a highly reliable electromagnetic vibrator and device incorporating the electromagnetic vibrator with electric connections having high vibration resistance and impact resistance.

Abstract: In a motor mounting mechanism, a cylindrical motor includes a frame (6) serving as a stator and an electric power supply terminal (2) attached to a bottom surface of a bracket (1). When the motor is mounted to a motor attachment device, a first external electrode (10) is mechanically and electrically connected to a cylindrical side surface of the frame (6) while a second external electrode (11) is mechanically and electrically connected to the power supply terminal (2). The first and second external electrodes are both located outside the motor, and thus, the process of providing lead wires for connecting the external electrodes to the printed board can be omitted, allowing the total size of the motor mounting mechanism to be reduced.

Abstract: According to the present invention, a coreless motor is provided, which comprises: a stator having a circular slot therein, magnets on a wall of the slot, two brushes attached thereto, and metals, which are arranged concentrically; and a rotor having a shaft rotatably supported by the metals, a coil assembly, and a commutator arranged around the shaft, the coil assembly having successive 1st to Nth coils in the slot confronting the magnets and (N+1) taps and a commutator including segments respectively connected to the (N+1) taps, the first to Nth coils connected to the segments through the (N+1) taps respectively, the two brushes selectively contacting with two of the segments successively. The 1st-Nth coils have a sleeve form and each has a rectangular winding pattern, the 1st-Nth coils and the (N+1) taps form a continuous wire, and a coil opening angle is substantially 180.degree. and a coil pitch is 180.degree./(N+1) to 360.degree./(N+1).

Abstract: A coreless motor has a cylindrical shell of magnetic material, a column-like magnet securely and coaxially positioned in the shell to form a cylindrical clearance therebetween, and a rotor. The rotor includes a cylindrical winding of a coil, arranged coaxially in the clearance, a commutator mechanically supporting one end of the winding and electrically connected with the coil, and a shaft for supporting the commutator. The motor further includes a pair of brushes arranged in contact with the commutator,such that an electric current is supplied via the commutator to the coil. A first bearing is mounted at an end portion of the magnet adjacent the commutator to rotatably support a first portion of the shaft, and a second bearing is mounted adjacent one end of the shell to rotatably support a second portion of said shaft.

Abstract: In a coreless motor, a shaft of the coreless motor does not pass through a magnet but is arranged in series with a columnar magnet on the same axis. The magnet is inserted in a tubular frame made of magnetic material and a coil which is mounted on the shaft is inserted in the gap between the outer surface of the magnet and the inner surface of the frame.