KR101759970B1 - Bone conduction vibrator and the ring type communication device using the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bone conduction transducer and a ring type communication device using the same, and more particularly, to a bone conduction transducer that includes a vibrator for converting an electrical acoustic signal into a vibration and delivering the same in a bone conduction manner, Type communication device in which a user can make a call while inserting a fingertip into one of his / her ears without taking out the mobile phone.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bone conduction transducer and a ring-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bone conduction vibrator and a ring type communication apparatus using the same, and more particularly, to a bone conduction vibrator that includes a vibrator for converting an electrical voice signal into vibration and delivering it in a bone conduction manner, Type communication device in which a user can make a call while inserting a fingertip into one of his / her ears without taking out the mobile phone.

 Generally speaking, if you get a phone call while using a cell phone, you have to take the cell phone out of your pocket and make a call, or connect a separate earphone or headset. In a noisy environment, when a call is made directly to a mobile phone, the voice of the other party does not sound well during a call. If the earphone is used, it is troublesome to connect the earphone to the mobile phone. If the earphone is inserted in both ears, There is a problem in that it is not possible to cope with the danger such as a case where the vehicle does not flow and the vehicle rushes.

As a means for solving such a problem, Korean Patent Laid-Open No. 10-2016-0059222 discloses a bracelet-type communication device. The bracelet-type communication device includes a bone conduction type vibrator inside a bracelet type body, Which is a product that can be inserted into the telephone. The above-mentioned patent has an advantage that it is possible to make a call with a simple operation without having to take out a mobile phone and to be able to hear outside ambient sounds, thereby preventing the risk of a safety accident. However, when a bone conduction transducer is embedded in a bracelet type product, since the distance between the position of the vibrator and the ear of the user is relatively long, a problem that the voice is not heard well due to attenuation or loss of vibration in the bone conduction process occurs, In the case of a general bone conduction oscillator, since the sound of the low sound is mainly outputted, the voice is not clearly distinguished and the sound device of the high frequency band over 3KHz can not be transmitted properly.

Korean Patent Publication No. 2002-0079027 Korean Patent Publication No. 10-2016-0015050 Korean Patent Publication No. 10-2016-0059222

The present invention relates to a smart ring, and is developed to solve the disadvantages of the conventional mobile phone communication system as described above. The present invention provides a smart ring which enables a phone conversation by a simple operation without taking out a mobile phone from a pocket, The object of the present invention is to provide an advanced mobile communication system capable of listening to the voice of the other party regardless of whether or not there is noise around the mobile phone, and to listen to external noises with one ear to cope with the danger.

According to an aspect of the present invention, there is provided a bone conduction vibrator comprising: a yoke having an open upper side and a receiving space formed therein; A core disposed at the center of the yoke; A coil arranged to surround the outer side of the core and adapted to receive a voice signal current; A diaphragm spring coupled to an upper portion of the yoke and vibrated according to a change in a magnetic field according to a change in current applied to the coil; And a magnet disposed on the upper side of the vibration plate spring.

Preferably, the core is formed so as to be movable up and down in the yoke. In particular, an axial tube having a thread is formed on the inner bottom surface of the yoke so as to protrude from the inner bottom surface of the yoke, It is preferable that a thread is formed so that the core can move up and down by a screw action in the shaft tube.

It is preferable that a weight plate is provided on the outer periphery of the coil to generate resonance at a low sound level to output a vibration of a low frequency at a maximum value.

In addition, it is preferable that a plate is further provided between the diaphragm spring and the magnet, the lower part of the plate is coupled to the diaphragm spring, and the magnet is mounted on the upper part of the diaphragm spring. Preferably, the diaphragm spring has a center hole formed therethrough, and a convex portion of the plate is fitted into a center hole of the diaphragm spring.

Meanwhile, a ring communication device according to the present invention includes: a ring-shaped main body that can be fitted to a finger; A bone conduction oscillator provided in the main body and adapted to receive an electrical voice signal and convert it into vibration; And a microphone provided at one side of the main body for converting a voice of the user into an electrical voice signal.

Here, the vibrator may include: a yoke having an upper side opened and a receiving space formed therein; A core disposed at the center of the yoke; A coil arranged to surround the outer side of the core and adapted to receive a voice signal current; A diaphragm spring coupled to an upper portion of the yoke and vibrated according to a change in a magnetic field according to a change in current applied to the coil; And a magnet disposed on the upper side of the vibration plate spring.

Preferably, the core is formed so as to be movable up and down in the yoke. In particular, an axial tube having a thread is formed on the inner bottom surface of the yoke so as to protrude from the inner bottom surface of the yoke, It is preferable that a thread is formed so that the core can move up and down by a screw action in the shaft tube.

It is preferable that a weight plate is provided on the outer periphery of the coil to generate resonance at a low sound level to output a vibration of a low frequency at a maximum value.

Further, it is preferable that a plate is further provided between the diaphragm spring and the magnet, and the plate is coupled to the diaphragm spring at the lower portion and the magnet is mounted at the upper portion. Preferably, a protrusion is formed on a lower portion of the plate, a center hole is formed in the diaphragm spring, and a convex portion of the plate is fitted into a center hole of the diaphragm spring.

Preferably, the magnet is exposed to the outside of the inner circumferential surface of the main body so that one side of the magnet is in contact with the user's finger.

In addition, a horizontal extending portion may protrude from one side of the upper portion of the main body in an outer tangential direction, and a display may be provided on an upper surface of the horizontal extending portion.

Since the present invention as described above can make a call with a finger by using bone conduction, it is possible to solve the troublesomeness of taking out a mobile phone or connecting a separate earphone or the like, and by controlling the position of a core in a coil, This makes it possible to hear high frequency sounds smoothly. In addition, because bone conduction is used, conversation is possible regardless of external noise, and since one ear is open, external danger can be recognized, which is excellent in stability.

1 is a perspective view of a ring communication apparatus according to the present invention,
FIG. 2 is a side view of a ring communication apparatus according to the present invention;
3 is a perspective view of a vibrator incorporated in a ring communication apparatus according to the present invention,
FIG. 4 is an exploded view of a vibrator incorporated in a ring communication apparatus according to the present invention, FIG.
FIG. 5 is a cross-sectional view of a vibrator incorporated in a ring communication apparatus according to the present invention,
Fig. 6 is a diagram showing a state in which the resonator tuning band is adjusted,
FIG. 7 is a view illustrating a use state of the ring-back talk apparatus according to the present invention.

Hereinafter, the configuration and operation of the ring communication device and the bone conduction oscillator 100 according to the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

According to an aspect of the present invention, there is provided a ring-type communication apparatus, which is configured in a ring form, and which is capable of placing a finger inserted into one ear while a user is put on the finger, It receives the voice signal of the other party, converts the transmitted voice signal into vibration and transmits it by bone conduction method, so that it can hear the voice regardless of external noise. Since one ear is open at all times, Safety is guaranteed. To this end, the ring communication apparatus according to the present invention includes a main body 10, a display 13, a microphone 14, and a vibrator 100.

As shown in FIGS. 1 and 2, the main body 10 is formed in a ring-like shape such as a ring so as to be fitted on a finger, and includes a vibrator 100 to be described later, a wireless transmitting / (Not shown), a control circuit (not shown) for controlling the entire operation, and a battery (not shown).

A horizontal extending portion 12 is protruded in an outer tangential direction on one side of the upper portion of the main body 10 and a display 13 is provided on an upper surface of the horizontal extending portion 12. The display 13 displays various operating states such as whether a call is received, a busy state or a call terminated state, a volume, and a power state. The lower surface of the horizontal extending portion 12 is preferably concavely curved in correspondence with the curvature of the adjacent fingers of the finger fitted with the main body 10 for comfort.

A microphone (14) is provided on one side of the main body (10). When the user inserts the fingertip into the ear of the user while holding the main body 10 with the finger inserted, the microphone 14 detects the voice of the user at the time of a call and converts the voice into an electrical voice signal to be transmitted to the vibrator 100 described later.

In addition, a function switch 16 for controlling functions such as power on / off and volume control, and a charging terminal 18 for power supply charging are provided on one side of the main body 10, respectively.

On the other hand, the user's voice sensed by the microphone 14 is converted into an electrical voice signal, and then transmitted in a vibration mode along the user's finger in a bone conduction manner. To this end, the body 10 is provided with a bone conduction oscillator 100. The vibrator 100 is installed inside the main body 10, more preferably, inside the upper portion of the main body 10 as shown in FIG. 2, and a portion of the magnet 170, which will be described later, And is configured to transmit vibrations effectively when it is exposed to the outside of the inner circumferential surface and comes into contact with the user's finger when worn.

Fig. 3 is a perspective view of the vibrator, Fig. 4 is an exploded view of the vibrator, and Fig. 5 is a cross-sectional view of the vibrator. 3 to 5, the vibrator 100 includes a yoke 110, a core 120, a coil 130, a weight plate 140, a diaphragm spring 150, a plate 160, (170).

The yoke 110 is an outer casing of which the upper portion is opened and a receiving space is provided therein to enclose the core 120, the coil 130 and the weight plate 140 to be described later, But it is preferable that it is formed as a hollow cylindrical shape having an open top, as shown in Fig. A through hole 112 is formed in the bottom of the yoke 110 and an axial tube 114 is protruded inside the yoke 110 having the through hole 112 formed therein. A thread 120 is formed on the inner circumferential surface of the shaft tube 114 so that the core 120 can be moved up and down by a screw action. A plurality of stepped portions 116 are formed on the upper circumferential surface of the yoke 110 to seat a wing portion 152 of a diaphragm spring 150 to be described later.

As described above, the core 120 is inserted into the shaft tube 114 of the yoke 110. As shown in FIGS. 4 and 5, the core 120 is an iron core for generating a magnetic field in response to a current flowing through the coil 130, and is formed in a bar shape having a circular section, So as to have a shape similar to that of a bolt. Accordingly, the core 120 is inserted and coupled from above the shaft tube 114.

Meanwhile, as mentioned above, the core 120 is configured to be movable up and down within the shaft tube 114 by a screw action. For this, a thread corresponding to the thread formed on the inner circumferential surface of the shaft tube 114 is formed on the outer circumferential surface of the core 120. The bottom surface of the core 120 is preferably formed with a straight or criss-shaped concave groove 122 so as to be rotated using a coin or a driver.

A coil 130 is disposed outside the core 120. The coil 130 is electrically connected to a PCB (not shown) provided outside the vibrator 100 to flow a current for generating a magnetic field. As shown in FIG. 4, the coil 130 is wound a plurality of times, And is inserted and coupled to the outside of the core 120 and the shaft tube 114 in a state in which the core 120 is inserted into the shaft tube 114. As the polarity or intensity of the current flowing through the coil 130 changes, the direction or intensity of the magnetic field around the core 120 is changed. Accordingly, due to interaction with the magnetic field of the magnet 170 described below, The spring 150 vibrates.

A weight plate 140 is disposed outside the coil 130. As the weight plate 140 has a low frequency natural frequency (FO) of 50 to 100 Hz, it resonates when a voice signal having a low frequency is applied, thereby outputting the vibration of the low frequency at a maximum value. The weight plate 140 is made of a metal material having a specific gravity of 7.1 to (Cr) to 19.29 (Au). The weight plate 140 is formed in a circular ring shape having a through hole 112 at the center thereof and inserted into the outer side of the coil 130 It is particularly preferable that the metal material is made of tungsten having a specific gravity of 8.73.

A diaphragm spring 150 is covered at an upper opening of the yoke 110 where the core 120, the coil 130, and the weight plate 140 are disposed. The diaphragm spring 150 is vibrated by the change of the magnetic field according to the change of the current flowing through the coil 130 as described above, and transmits the generated vibration to the yoke 110. As shown in FIG. 4, the diaphragm spring 150 is formed in a generally circular plate shape, and has a plurality of incisions formed on its surface so as to be vertically vibrated. The wing portion 152 5, the wing portion 152 is coupled to the yoke 110 by spot welding in a state of being seated on the step portion 116 formed at the upper end of the yoke 110, . A central hole 154 for coupling the plate 160 to be described later is formed at the center of the diaphragm spring 150.

A metal plate 160 is coupled to an upper portion of the diaphragm spring 150 and a magnet 170 is coupled to an upper center of the plate 160. Generally, since the magnetic force of the magnet 170 spreads out from the center and spreads out, the intensity of the both ends is generally large. The plate 160 induces the magnetic force to converge to the center, that is, do.

The convex portion 162 is formed at the center of the lower surface of the plate 160 to fit into the center hole 154 of the diaphragm spring 150 and the concave portion 164 is formed at the center of the upper surface of the plate 160, . Preferably, the magnet 170 is fitted to the concave portion 164 of the plate 160 or fixed thereto by an adhesive or other coupling means.

The vibrator 100 described above is preferably installed inside the main body 10 of the ring-type communication apparatus as shown in Fig. 2, and arranged so that the user's finger and the magnet 170 come into contact with each other from above, Do. If necessary, a separate cover that contacts the user's finger may be placed on the upper side of the magnet.

FIG. 6 is a view illustrating a state in which the bone conduction band vibrator 100 according to the present invention is in operation. As already mentioned above, since the general bone conduction oscillator (100) outputs the sound of the low frequency mainly, there is a problem that the voice is not distinguished and there is a problem that the sound of the high frequency band over 3KHz can not be properly transmitted There has been a limit to the use in devices. In order to solve this problem, in the present invention, the position of the core 120 is vertically adjustable so that the high frequency band sound can be smoothly output and transmitted by adjusting the frequency band.

That is, as described in detail above, the core 120 of the vibrator 100 is screwed to the shaft tube 114 of the yoke 110, and when the core 120 is rotated, So that it is possible to adjust the range of the band. More specifically, as shown in FIG. 6 (a), the core 120 is initially screwed deeply into the shaft tube 114 of the yoke 110. At this time, the gap between the core 120 and the plate (or magnet) is referred to as G1. When the screwdriver is inserted into the recessed groove 122 formed in the lower surface of the core 120 in the present state, the thread of the outer circumferential surface of the core 120 and the threaded surface of the inner circumferential surface of the shaft tube 114 interact, , The core 120 is moved upward. In this case, the gap between the core 120 and the plate (or magnet) is reduced to G2. When the gap between the core 120 and the plate (or magnet) becomes narrow as the core 120 moves up, the intensity of the magnetic force applied to the diaphragm spring 150 becomes relatively large, so that the vibrations become heavy, The output of which is possible. When the core 120 is rotated in the opposite direction, the gap between the core 120 and the plate 160 becomes large, so that the intensity of the magnetic force applied to the diaphragm spring 150 is relatively small to reduce the vibration, The previous sound is output. Since the range of the core 120 can be adjusted by adjusting the position of the core 120, voice transmission in a high frequency range can be smoothly performed when used in a communication device.

The position of the core 120 may be set in advance in accordance with the voice band for voice communication at the time of product launch, or may be set in advance so as to form a hole or a control knob (not shown) So that it is possible to adjust the frequency band according to need during use.

FIG. 7 shows a state in which a ring-type communication apparatus according to the present invention equipped with such a vibrator 100 is worn on a finger. As shown in the figure, the user places the fingertip on a finger while the main body 10 is inserted into any one of the fingers. A ring type communication device connected to a mobile phone by radio such as Bluetooth receives a voice signal from the mobile phone and the voice signal is applied to the coil 130 to generate a magnetic field around the core 120. In accordance with the change of the voice signal The polarity and intensity of the magnetic field are changed. Since the magnet 170 disposed on the upper side always has a direction and intensity of a constant magnetic field, the diaphragm spring 150 is vibrated according to the direction and intensity of the magnetic field generated from the core 120. The vibration of the diaphragm spring 150 is transmitted to the yoke 110 so that the vibrator 100 vibrates as a whole and the vibrations are transmitted through the skull and the finger bones of the user in contact with the magnet 170 and are transmitted to the cochlea of the user You can hear the other party's voice. Then, after the user's voice is detected through the microphone 14 provided in the main body 10 of the ring-type communication apparatus, it is converted into an electrical signal and transmitted.

The bone conduction oscillator according to the present invention and the ring type communication apparatus using the bone conduction oscillator according to the present invention have been described above. However, the present invention is not limited to the above description, but can be applied by those skilled in the art It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: main body 12: horizontal extension part
13: Display 14: Microphone
16: Function switch 18: Charging terminal
100: Oscillator 110: York
112: Through hole 114: Shaft
116: step 120: core
122: concave groove 130: coil
140: weight plate 150: diaphragm spring
152: wing portion 154: center hole
160: plate 162: convex portion
164: recess 170: magnet

Claims (15)

A yoke having an upper side opened and a receiving space formed therein;
A core disposed at the center of the yoke;
A coil arranged to surround the outer side of the core and adapted to receive a voice signal current;
A diaphragm spring coupled to an upper portion of the yoke and vibrated according to a change in a magnetic field according to a change in current applied to the coil;
And a magnet disposed above the vibration plate spring,
Wherein the core is configured so as to be movable up and down in the yoke so as to adjust the magnetic force generated by the coil according to the position of movement of the core. delete The method according to claim 1,
An axial tube having a thread formed on an inner circumferential surface thereof is formed on an inner bottom surface of the yoke and a thread corresponding to the thread of the axial tube is formed on an outer circumferential surface of the core so that the core can be moved up and down by a screw action in the axial tube. Bone conduction oscillator. The method according to claim 1,
Wherein a weight plate is provided at an outer periphery of the coil to generate resonance at a low sound level to output a vibration of a low frequency at a maximum value. The method according to claim 1,
Wherein a plate is further provided between the diaphragm spring and the magnet, and a lower portion of the plate is coupled to the diaphragm spring, and a magnet is attached to the upper portion of the diaphragm spring. 6. The method of claim 5,
Wherein a convex portion is protruded from a bottom of the plate, a center hole is formed in the diaphragm spring, and a convex portion of the plate is fitted into a center hole of the diaphragm spring. A ring-shaped main body which can be fitted to a finger;
A bone conduction oscillator provided in the main body and adapted to receive an electrical voice signal and convert it into vibration;
And a microphone provided at one side of the main body for converting a voice of the user into an electrical voice signal,
The bone conduction oscillator includes:
A yoke having an upper side opened and a receiving space formed therein;
A core disposed at the center of the yoke;
A coil arranged to surround the outer side of the core and adapted to receive a voice signal current;
A diaphragm spring coupled to an upper portion of the yoke and vibrated according to a change in a magnetic field according to a change in current applied to the coil;
And a magnet disposed above the vibration plate spring,
Wherein the core is configured to be vertically movable within a yoke, and adjusts a magnetic force generated by the coil according to a position where the core is moved. delete delete 8. The method of claim 7,
An axial tube having a thread formed on an inner circumferential surface thereof is formed on an inner bottom surface of the yoke and a thread corresponding to the thread of the axial tube is formed on an outer circumferential surface of the core so that the core can be moved up and down by a screw action in the axial tube. Ring type communication device. 8. The method of claim 7,
Wherein a weight plate is provided at an outer periphery of the coil to generate a resonance at a low sound level to output a vibration of a low frequency at a maximum value. 8. The method of claim 7,
Wherein a plate is further provided between the diaphragm spring and the magnet, wherein a lower portion of the plate is coupled to the diaphragm spring, and a magnet is attached to the upper portion of the plate. 13. The method of claim 12,
Wherein a convex portion is formed at a lower portion of the plate, a center hole is formed in the diaphragm spring, and a convex portion of the plate is fitted into a center hole of the diaphragm spring. 8. The method of claim 7,
Wherein the magnet is exposed to the outside of the inner circumferential surface of the main body so that one side of the magnet is in contact with the user's finger. 8. The method of claim 7,
Wherein a horizontal extending portion is protruded in an outer tangential direction on one side of an upper portion of the main body, and a display is provided on an upper surface of the horizontal extending portion.

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