JPH0570163U - DC solenoid vibrator - Google Patents

Abstract

(57) [Abstract] [Purpose] A DC solenoid that oscillates with a low-noise, simple-configuration, inexpensive DC single power source as the vibration source of a device that notifies the operation of a signal receiver for blind persons and portable callers by the occurrence of vibration. To provide a vibrator. [Structure] A movable member having a weight 9 having a leaf spring moving contact 8 provided at both ends and made of an electrically conductive material at the center of a permanent magnet 10 magnetized to have N poles and S poles at both ends and having a movable member attached to the outer circumferences of both ends. The movable coil 2 having the plate fixed contact 7 attached to the surface opposite to the plate spring moving contact 9 is wound around the outer periphery of the cylindrical body, and the spring 4 is arranged between the cap yoke 3 and the permanent magnet 10 provided at both ends. Sliding plate contact 2 mounted on the surface of the cylinder facing the weight
1, the leaf spring moving contact 8, the plate fixed contact 7, and the moving coil 2 are connected in series with a DC power source, and the magnetic poles of the permanent magnets facing the moving coil are repulsed from the magnetic field created by the moving coil. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a DC solenoid vibrator used as a vibration source of a device for informing the operation of a signal receiver for blind persons and a portable calling machine by generating vibration.

[0002]

[Prior Art]

 In the past, most of this type of equipment was annoying, which caused discomfort depending on the surrounding environment at the time of operation, because the operation was notified by reporting an alarm. In addition, there was a vibration caller that partly vibrated, but the vibration source used was a small cylinder with an eccentric weight 16 as shown in Fig. 4, or a flat coreless motor 17, etc. However, there is a drawback that it is large and expensive.

[0003]

[Problems to be solved by the device]

 In order to eliminate the drawbacks of the present invention, the present invention detects the reception of the signal by vibration without being detected by the people in the surroundings. Furthermore, since the moving parts are not exposed, the noise is low and the configuration is simple and inexpensive. To provide a simple DC solenoid vibrator.

[0004]

[Means for Solving the Problems]

 The present invention relates to a movable member composed of a magnetic body and a weight incorporating a permanent magnet, a cylindrical body for slidably accommodating the movable member, and a permanent magnet arranged on the outer peripheral portion of the cylindrical body. A direct current solenoid vibrator comprising a drive coil that acts on a permanent magnet by acting on a magnetic field created by the above, and a damper member that reduces the impact of the movable member.

That is, the present invention is as follows. A movable member composed of a permanent magnet whose both ends are magnetized in the major axis direction to have N poles and S poles, and a weight which is a good conductor in the center of the permanent magnet and has leaf spring moving contacts attached to both end faces thereof. A cylindrical body in which a member is slidably housed and a sliding plate contact with which the outer peripheral surface of the weight makes sliding contact is attached to the inner surface, and the plate of the weight wound around both ends of the outer peripheral portion of the cylindrical body. It consists of a drive coil that has a fixed plate contact that contacts the spring moving contact, a spring that is placed between the cap yokes at both ends of the cylinder and the movable member, and a DC power supply, and is connected to the drive coil that is wound around both ends of the cylinder. The fixed plate contact, the leaf spring moving contact of the weight, and the sliding plate contact of the weight and the cylindrical body are connected to the DC power supply so that the magnetic fields created by the drive coils at both ends of the cylinder and the magnetic field of the permanent magnet repel each other. It is a DC solenoid vibrator characterized by being configured . 2. It is characterized in that a rubber-like elastic body fixed to the cap yoke is provided between a movable member composed of a weight having an electrically conductive film formed around an insulator and a permanent magnet and the cap yokes at both ends of the cylindrical body. It is the DC solenoid vibrator according to claim 1. 3. 2. The DC solenoid vibrator according to claim 1, wherein an iron piece is attached to a surface of one of the cap yokes of the cylindrical body facing the permanent magnet, and a spring fixed contact is attached instead of the plate fixed contact.

[0006]

[Action]

 A weight with a good electrically conductive material or a good conductor film formed on the surface of an electrically insulating material is provided in the center of the permanent magnet magnetized in the long axis direction into the N pole and S pole, and the magnetic poles of the permanent magnets on both sides of the weight are Attach the drive coil wound in the direction of repulsion to the magnetic field to be created to the outer circumference of the cylinder at both ends of the permanent magnet on both sides of the weight, and support the pole faces of the permanent magnet with the cap yokes attached to both ends of the cylinder by springs. A fixed plate contact is provided on the surface of the drive coil that contacts the weight, and a plate spring moving contact that contacts the plate fixed contact is provided on the surface of the weight.The drive coil, plate fixed contact, and plate spring moving contact on both sides are provided. By directly connecting the sliding plate contact that is in contact with the DC power supply, the movable member with the weight and the permanent magnet integrated so that the magnetic field created by the drive coil and the magnetic field created by the permanent magnet repel each other. Is configured in The movable member is caused to move to the right and left vibration.

[0007]

【Example】

FIG. 1 shows an embodiment of a DC solenoid vibrator according to the present invention. In FIG. 1, a movable member having a weight 9 at the center and having a permanent magnet 10 penetrating the weight 9 is housed in a tubular body 1 having a cylindrical outer shape, and springs 4 are attached to both end surfaces of the permanent magnet. It is fixed to the cap yoke 3 made of a soft magnetic material via. A drive coil 2 for generating a magnetic field is arranged on the outer peripheral portion of the cylindrical body in the same direction as the long axis direction of the permanent magnet corresponding to the length of the permanent magnet protruding from the weight. At the position facing the weight 9, plate fixed contacts 7 that are electrically connected to both ends of the weight 9 of an electric conductor are attached, and consist of an electric conductor that is connected to the plate fixed contacts 7 of the two drive coils at both ends. Leaf spring moving contacts 8 are attached to both ends of the weight 9, and are connected in series to a DC power source via a sliding plate contact 21 attached to the weight and the inner surface of the cylindrical body 1. Further, when the power is off, the position of the permanent magnet of the movable member consisting of the weight 9 and the permanent magnet 10 is located at the position inserted into either the left or right drive coil by the rod 4, and the power supply is connected to the drive coil 2. The magnetic field created by the drive coil and the drive coil is configured to generate a magnetic field in the direction opposite to the polarity of the permanent magnet. Moves in the direction of the other drive coil, the leaf spring moving contact of the other weight is connected to the plate fixed contact of the drive coil, and a current flows through the other drive coil. The magnetic field of the permanent magnet and the drive coil repels each other, the movable member moves to the initial position, and the DC vibrator of the present application repeats this operation while being connected to the DC power supply. Therefore, since the movable member in which the permanent magnet 10 and the weight 9 are integrated is only one DC power source, reciprocating vibration is repeated. FIG. 2 shows an example in which the spring 4 of FIG. 1 is used instead of the rubber-like elastic body 5, and when the weight 9 is a non-magnetic material, a good electrical conductor film 12 is attached around the weight 9. In Fig. 3, the iron piece 6 is attached to the tip of the non-magnetic cap yoke, and the permanent magnet of the movable member is attracted and fixed to the iron piece 6 at the tip of the cap yoke when the power is off. It will be possible. In FIG. 4, the leaf spring fixed contact 11 on the side of the drive coil 2 is used as the spring fixed contact 13, and the movement of the weight 9 makes contact with the position of the leaf spring moving contact provided on the weight to make conduction.

[0008]

[Effect of the device]

 The present invention is ideal for the purpose for which it is originally used because the movable member is not exposed unlike the conventional vibration source in this type of device. Moreover, it has the advantage that it can be manufactured at low cost because there are few components. Furthermore, by adjusting the spring constant of the contact part and the spring constant of the movable part damper, the vibration immediately after the power is turned on feels small and then gradually increases. It can also be generated. As a field to which these configurations can be applied, it is natural that the DC solenoid vibrator of the present invention can be applied to other applications requiring vibration such as a portable massage machine and an automatic sieving machine. As described above, according to the present invention, it is possible to provide a low-noise and inexpensive DC solenoid vibrator.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a first embodiment of a DC solenoid vibrator according to the present invention.

FIG. 2 is a vertical sectional view of a second embodiment of a DC solenoid vibrator according to the present invention.

FIG. 3 is a vertical sectional view of a third embodiment of a DC solenoid vibrator according to the present invention.

FIG. 4 is a view showing a conventional vibration device, FIG. 4A is a perspective view showing an example in which an eccentric weight is attached to a coreless motor,
FIG. 4B is a perspective view in which an eccentric weight is attached to the flat motor.

[Explanation of symbols]

 1 tube 2 drive coil 3 cap yoke 4 spring 5 rubber-like elastic body 6 iron piece 7 plate fixed contact 8 plate spring moving contact 9 weight 10 permanent magnet 11 leaf spring fixed contact 12 good electrical conductor film 13 spring fixed contact 14 iron foil 15 spring Contact point 16 Eccentric weight 17 Coreless motor 20 Power source 21 Sliding plate contact point

Claims (3)

[Scope of utility model registration request] 1. A movable member composed of a permanent magnet whose both ends are magnetized to have N poles and S poles in the long axis direction, and a weight which has a good electrical conductor in the center of the permanent magnet and has leaf spring moving contacts attached to both end faces. A cylindrical body in which the movable member is slidably housed and a sliding plate contact with which the outer peripheral surface of the weight is in sliding contact is attached to the inner surface,
A drive coil having a plate fixed contact that is in contact with a plate spring moving contact of the weight, which is wound around both ends of the outer periphery of the tubular body;
A spring arranged between the cap yokes at both ends of the cylinder and the movable member, a DC power source, a plate fixed contact connected to the drive coil wound at both ends of the cylinder, and a leaf spring moving contact of the weight, A direct current solenoid vibrator comprising a weight and a sliding plate contact of a tubular body connected to a direct current power source so that a magnetic field generated by drive coils at both ends of the tubular body and a magnetic field of a permanent magnet repel each other. 2. A rubber-like elastic body fixed to the cap yoke is provided between a movable member composed of a weight having an electrically conductive film formed around an insulator and a permanent magnet and cap yokes at both ends of the cylinder. The DC solenoid vibrator according to claim 1, wherein. 3. The DC solenoid vibrator according to claim 1, wherein an iron piece is attached to a surface of the one cap yoke of the cylindrical body facing the permanent magnet, and a spring fixed contact is attached instead of the plate fixed contact.