JPH0585192U - Electromagnetic induction converter - Google Patents

Abstract

(57) [Summary] [Purpose] An integrated transducer capable of double resonance between a high-range sounding body and a low-range vibrating body. [Structure] The voice coil 9 is fixed to the center of the diaphragm 6, and the magnet 10 is fixed to the center of the spring body 11.
The diaphragm 6 and the spring body 11 are vertically opposed to the voice coil 9 at a position where the magnet 10 is inserted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of an electromagnetic induction type converter including a high-range sounding body and a low-range vibrating body.

[0002]

[Prior Art]

 As shown in FIG. 2, the structure of the conventional electrodynamic speaker is such that the magnet 1 is fixed to the bottom plate of the case 2, the voice coil 3 is bonded to the diaphragm 4, and the voice coil 3 is placed in the magnetic gap 5 generated by the magnet 1. It is widely used as a sounding body with a broadband reproduction characteristic that enables reproduction of 20 to 20 KHz by positioning it.

[0003]

[Problems to be solved by the device]

 However, it cannot be used as a vibrating body because the required sound pressure cannot be obtained for low-frequency reproduction. Only the reproduction characteristic was obtained, and it could not be realized as a low-range vibrating body. It is an object of the present invention to provide an integrated converter that enables double resonance between a high-range sounding body and a low-range vibrating body.

[0004]

[Means for Solving the Problems]

 In the present invention, the voice coil is fixed to the center of the diaphragm with low compliance, the magnet is fixed to the center of the spring body with high compliance, and the magnet is inserted into the voice coil. By placing the spring body vertically and placing the magnet so that the end surface of one pole of the magnet is located in the center of the voice coil and storing it in the case, apply a low-frequency signal or high-frequency signal to the voice coil. By vibrating the spring body in the direction of the magnet pole, this is an electromagnetic induction type transducer that can selectively use a buzzer sound with a high frequency characteristic of 2 to 4 KHz and a vibration with a low frequency characteristic of 50 to 100 KHz.

[0005]

【Example】

 FIG. 1 shows an embodiment of the present invention, in which a diaphragm 6 supports a yoke 8 and a voice coil 9 by a supporter 7. The magnet 10 is held at the center of the spring body 11, and the diaphragm 6 and the spring body 11 are arranged vertically in the case 12 so that the magnet 10 is inserted in the voice coil 9. Maximum efficiency can be obtained by positioning one end of the magnet in the center of the voice coil. Buzzer sound was obtained when 2.1 and 2.7 KHz were applied to voice coil 9, and vibration was obtained when 50 Hz was applied next. By appropriately setting the difference in compliance between the diaphragm 6 and the spring body 11, the buzzer sound and frequency can be changed.

[0006]

[Effect of the device]

 With the present invention, it is possible to realize a converter that integrally generates a buzzer sound and a vibration as a vibrator, and by incorporating it into a pager, a signal receiver for the hearing impaired, etc., an alarm can be given to a person carrying it. It can be applied to a device that informs a part of the body by vibration instead of buzzer sound.

[Submission date] January 14, 1992

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Added

[Correction content]

According to the present invention, the voice coil is fixed to the center of the diaphragm having low compliance, the magnet is fixed to the center of the spring body having high compliance, and the magnet is inserted in the voice coil. vibration da diaphragm and and the spring member is vertically opposed end faces of the pole of the magnet is arranged so as to be located to the voice coil central portion housed in a case, and against the low frequency input signal, and arranged magnet the resonant frequency of the system, Ku if match the input frequency is a frequency of an integral multiple thereof, by applying a low-frequency signal or the high frequency signal to the voice coil, by oscillating the spring body to the magnet pole direction, 2 - Electromagnetic that can use buzzer sound with 4KHz high frequency characteristic and vibration with 50 ~ 100KHz low frequency characteristic It is an inductive converter.

[Brief description of drawings]

FIG. 1 is a sectional view of an electromagnetic induction type converter of the present invention.

FIG. 2 is a sectional view of a conventional electrodynamic speaker.

[Explanation of symbols]

 1 magnet 2 case 3 voice coil 4 diaphragm 5 magnetic gap 6 diaphragm 7 supporter 8 yoke 9 voice coil 10 magnet 11 spring body 12 case

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[Procedure amendment]

[Submission date] January 14, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Item name to be amended] Scope of utility model registration request

[Correction method] Added

[Correction content]

[Scope of utility model registration request]

Claims (1)

[Scope of utility model registration request] 1. A voice coil is fixed to a central portion of a diaphragm, a magnet is fixed to a central portion of a spring body, and the diaphragm and the spring body are vertically opposed to each other at a position where the magnet is inserted into the voice coil.
The spring body is arranged in the magnet pole direction by applying a low-frequency signal or a high-frequency signal to the voice coil by arranging the magnet so that the end surface of one pole of the magnet is located in the center of the voice coil and storing it in the case. An electromagnetic induction converter characterized by vibrating.