WO2017014528A1

WO2017014528A1 - Hair-band type bone conduction acoustic device

Info

Publication number: WO2017014528A1
Application number: PCT/KR2016/007830
Authority: WO
Inventors: 오세례
Original assignee: (주)대만
Priority date: 2015-07-21
Filing date: 2016-07-19
Publication date: 2017-01-26
Also published as: KR101561671B1

Abstract

The present invention relates to a hair-band type bone conduction acoustic device, which: can be worn on the head and used without being restricted according to activities such as sleeping, exercising, and driving; prevents symptoms of hypoacusis due to a long-term use; does not have to be directly worn on the ears, thereby resolving risk factors according to the blocking, of external sounds, caused by the use of conventional acoustic devices (earphones, headphones, and the like); provides more enhanced vibrating power so as to transmit a clear sound to a user; and particularly, is linked with a user's smart terminal such that actions such as making phone calls and listening to music through the smart terminal can be done while both hands are free.

Description

Hair Band Type Bone Conduction Sound System

The present invention relates to an acoustic apparatus using the bone conduction principle of generating vibrations to transfer sound through bones.

More specifically, it is worn on the head and can be used without restrictions due to activities such as sleep, exercise, and driving, and prevents hearing deterioration caused by long-term use, and does not have to be worn directly on the ear. , Headphone, etc.) can solve the risk factors caused by external sound cutoff, and can provide clearer sound quality to users by providing stronger vibration force, especially through the call and the smart terminal connected to the user's smart terminal The present invention relates to a hair band-type bone conduction sound device that allows both hands to perform music listening and the like freely.

In general, in the process of listening to a sound, a sound in the form of a wave vibrates air molecules to vibrate the ear eardrum, and the sound is recognized by the vibration of the eardrum.

However, the hearing impaired, the elderly with the old hearing, and the like, the vibration of the eardrum is not made smoothly, can not hear the correct sound.

In recent years, a lot of techniques have been proposed for the bone conduction sound device to directly vibrate the head bones to stimulate the auditory nerve through the bone conduction to hear the sound.

Conventional technology related to such a bone conduction sound device, Patent No. 10-1069067 (September 23, 2011) [Bone Conduction Speaker] (Prior Art 1), the prior art 1 in contact with the skull sound Bone conduction speaker is proposed that can significantly improve the bone conduction efficiency of the vibration sound by increasing the vibration performance of the massoid to deliver.

Another conventional technique is Patent Registration No. 10-1377418 (March 13, 2014) [Bone conduction headphones] (Prior Art 2), the prior art 2 to reproduce the sound by the bone conduction method, the eardrum Not only can you hear sound stably in noisy or noisy environment, but also the structure of the vibrator inside the speaker housing greatly reduces the tickling effect on the human body even when the volume is increased to minimize the effect on the human body even if worn for a long time In addition, it improves the original sound reproduction of stereo sound that is not realized in the bone conduction speaker, and places the magnet provided inside to be opposite to the body, so that it is less affected by magnetic force, Technology to prevent the deterioration of the user's health by preventing the metallic magnetic material is not adsorbed to the contact with the body It is.

However, the bone conduction acoustic apparatus (or the corresponding configuration) presented in the above-described prior arts 1 and 2 (particularly the prior art 2) blocks the wearer's ear when worn, so that the external sound cannot be heard so that there is no risk of an accident. have. In addition, since it is worn in the form of pressing the side of the face (near the ear), the wearer has a disadvantage of causing discomfort when used for a long time.

The present invention has been made to solve the above problems,

It is worn on the head so that it can be used without restrictions according to activities such as sleep, exercise, driving, etc., but its wearing and releasing is not inconvenient,

In addition, because it does not need to be worn directly on the ear, it aims to solve the risk factors caused by external sound blocking that may occur when using conventional sound devices (earphones, headphones, etc.),

In addition, to provide a stronger vibration force to deliver a clear sound quality to the user,

Furthermore, the purpose of the present invention is to allow the hands to freely perform actions such as calling and listening to music through the smart terminal of the user.

The present invention having the above object

A head having a head wearing part in contact with the wearer's head, the body having two spaced apart ends, an opening provided at an upper side, a mounting part provided therein, and a wall part surrounding the mounting part along the opening circumference; A housing coupled to the spaced end portion adjacent to the wearer, a first magnetic body disposed at the center of the mounting portion, and a second magnetic body spaced apart from the inner surface of the wall portion to form a spaced portion around the first magnetic body; A diaphragm plate disposed between the magnetic unit, the upper vibration plate disposed above the opening to contact the wearer's head, the lower vibration plate disposed below the opening, and the upper vibration plate and the lower vibration plate to cover the opening, and the lower vibration plate. Vibration unit is coupled to the lower portion comprising a vibration coil inserted between the separation portion of the first magnetic body and the second magnetic body And a communication unit having a Bluetooth module for communicating with the wearer's smart terminal.

The magnetic unit may further include a first conductive plate covering an upper portion of the first magnetic body, a second conductive plate covering an upper portion of the second magnetic body, and a support plate supporting lower portions of the first magnetic body and the second magnetic body. It further comprises a battery for supplying power to the magnetic unit and the vibration unit, characterized in that the application of external power is limited when the charging of the battery using the external power is completed.

In addition, further comprising a power supply means for supplying power to the battery, wherein the power supply means is an external power supply circuit for generating a supply power using an external power source, and the internal power source using an external power source when the external power supply is cut off A power supply unit having an internal power supply circuit for generating a supply power using the internal power source, and a switch unit for determining an operation of the external power supply circuit or the internal power supply circuit by determining whether to apply external power; Control unit for controlling the internal power generated through the internal power supply circuit, a transformer connected to the output terminal of the power supply to adjust the voltage of the DC power supply, the noise of the supply power connected to the transformer of the transformer A detector for detecting a component, and a filter for removing noise of the power supply detected by the detector, The external power supply circuit includes a capacitor C1 and a first rectifying diode BD1 connected in series to an external power source, and a charging capacitor C5 connected in parallel thereto, and the internal power supply circuit is connected in parallel to an external power source. A bridge diode BD3, a transformer T1 and a second rectifying diode BD2 connected in parallel thereto, and a charging capacitor C5 connected in parallel thereto, and including an output terminal and a first terminal of the first rectifying diode BD1. The output terminals of the two rectifier diodes BD2 are connected to each other.

Furthermore, the transformer unit is connected to the output terminal of the power supply unit to reduce the voltage of the supply power supply, a protection circuit connected to the voltage divider circuit to protect the overvoltage, and connected to the protection circuit to remove the influence of harmonics A resonant circuit and a transformer circuit for regulating the voltage of the power supply, wherein the detector is connected to an output terminal of the transformer and detects noise components of the transformed power supply; A delay circuit for delaying the delay circuit, and a relay circuit having one end connected to the delay circuit, wherein the filter unit is connected to the relay circuit of the detection unit and is driven by the relay circuit; And a third filtering circuit connected to output terminals of the first filtering circuit and the second filtering circuit, wherein the voltage dividing circuit includes the power supply hole. It consists of a variable resistor (RV2) connected in series to the negative output terminal, the protection circuit is composed of a zener diode (ZD2) and a capacitor (C6) connected in parallel to the output terminal of the voltage divider circuit, the resonant circuit of the protection circuit An inductor L1 connected in parallel to an output terminal, a pair of switching parts alternately switched according to the direction of the organic electromotive force of the transformer circuit, and a capacitor C7 connected to the output terminal of the switching part, wherein the switching part is Npn transistors Q2 and Q3 connected to the primary side of the transformer circuit, zener diodes ZD3 and ZD4 connected in parallel thereto, and a resistor R4 and R5, and the transformer circuit includes a transformer T2. ) And a diode (D1) (D2) connected to the secondary side of the transformer (T2), wherein the detection circuit is composed of a resistor (R6) and a capacitor (C8) connected in series to remove the DC component of the power supply. filter A part, a reference voltage generation part consisting of two resistors R7 (R9) and a capacitor C9 connected in parallel with each other, and a detection resistor R10 connected to an inverting terminal of the OP amplifier OP1 and OP amplifier OP1. The delay circuit is connected to an output terminal of the OP amplifier OP1 of the detection circuit, and includes a reverse diode D3, a resistor R11, and a capacitor C10 connected in parallel to each other. It is characterized by.

The present invention having the above configuration and features

It can be used without being constrained by activities, and its wearing and dismounting are easy, and it can also reduce the risk of accidents caused by external sound blocking, and also enhance the clarity of sound quality. Activities such as calls and listening to music can be conducted freely with both hands, which provides an effect of improving convenience of use.

1 is a perspective view showing the appearance (body and housing) of the present invention.

Figure 2 is a perspective view and a cross-sectional view showing the internal configuration (housing, magnetic unit and vibration unit) of the present invention.

Figure 3 is an embodiment of the present invention (power supply means).

* Description of the symbols for the main parts of the drawings *

1: body 11: head wear

13: spaced end 2: housing

3: magnetic unit 31: first magnetic body

32: Spacer 33: Second Magnetism

35: first conductive plate 36: second conductive plate

37: support plate

4: vibration unit 41: upper vibration plate

42: lower vibration plate 43: diaphragm plate

44: vibration coil

5: power supply

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention may be modified in various ways and have various forms, embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

In addition, in the drawings, the components are exaggerated in size (or thick) in size (or thick) in size (or thin) or simplified in consideration of the convenience of understanding and the like, thereby limiting the scope of protection of the present invention. It should not be.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In the present specification, the first to second and the second to refer to different components are not limited to the order of manufacture, and their names are used in the detailed description and claims of the present invention. It may not match.

The present invention is worn on the head can be used without restrictions due to activities such as sleep, exercise, driving, and the like to prevent hearing loss caused by long-term use, because it does not have to be worn directly on the ear conventional sound device (earphone, It can solve the risk factors caused by external sound blocking by using headphones, etc., and can provide clearer sound quality to users by providing stronger vibration force, and especially through the call and music through the smart terminal in conjunction with the user's smart terminal. The present invention relates to a hair band-type bone conduction sound device that allows both hands to proceed freely.

Hereinafter, a hair band type bone conduction sound device (hereinafter referred to as the sound device) according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the appearance of the present invention.

As shown in FIG. 1, a configuration forming the appearance may be confirmed. As illustrated, the acoustic apparatus includes a body 1 mounted to a wearer's head and a housing 2 coupled thereto.

More specifically, as shown in Figure 1, the body 1 is characterized by having a head wearing portion 11 in contact with the wearer's head, and having two spaced ends 13 spaced apart from each other.

Head wearing portion 11 means the inner surface of the body 1, the two spaced apart ends are configured to be adjustable according to the size of the wearer's head. To this end, the body 1 is preferably made of a material having its own elasticity and restoring force, and through the characteristics of the body 1, by applying an external force to the first spaced end 13A or the second spaced end 13B It can be worn with two separate distances. In addition, after wearing, the separation distance between the first spaced end 13A and the second spaced end 13B is adjusted according to the size of the wearer's head by the self restoring force of the body 1 to provide a comfortable fit.

In addition, the housing 2 is coupled to a position adjacent to the spaced end 13 of the head wearing portion 11 of the body 1, this coupling position is to make the sound transmission through the vibration of the head bone more efficiently In general, the part behind the wearer's ear is known to have the best bone conduction efficiency, and the coupling position of the housing 2 is considered.

In addition, the body 1 and the housing 2 is preferably made of a waterproof material for the wearer's sweat or water washing, etc. For this purpose, a separate waterproof means at the coupling portion between the body 1 and the housing 2 (Not shown) may be provided.

As a result, both hands are free when using the sound device, such as making a call or listening to music through a linked smart terminal in a situation such as exercise or driving through the body 1 having the above-described structure. In addition, the risk of accidents caused by the use of smart terminals can be prevented.

In addition, as can be seen in Figure 1, the body has a coupling portion 15, characterized in that the threaded portion 25 is provided on the outer surface of the housing 2 is inserted into and coupled to the coupling portion 15 . Therefore, since the housing 2 is screwed in a form in which the threaded portion 25 is in contact with the engaging portion 15 and is detachable, the user can easily remove the housing from the body for maintenance, cleaning, maintenance, replacement, and maintenance. Can be separated or combined.

In addition, FIG. 1 shows an implementation of mounting the body in the upper right dashed line region.

In addition, as shown in the left upper dashed line region of FIG. 1, the body 1 has a first corresponding contact point 16 and a second corresponding contact point 17 in the engaging portion 15, and the housing 2 has a first contact point. It is characterized by including a first contact 26 in contact with the corresponding contact 16 and a second contact 26 in contact with the second corresponding contact 17.

The implementation shown in the upper left dashed line region of FIG. 1 is just one embodiment, and substitution of the first contact point 27 and the second contact point 27 is also possible. These two

contacts

26 and 27 are responsible for energizing the body 1 and the housing 2.

2 is a perspective view [A] and a sectional view [B] for illustrating the housing 2 and its internal configuration of the present invention.

As shown in FIG. 2, the sound device further includes a magnetic unit 3 and a vibration unit 4 together with the body 1 and the housing 2 described above. In addition, although not shown in the figure further comprises a communication unit for interworking with the smart terminal.

In more detail with respect to each configuration, the housing 2 includes an opening provided on the upper side, a mounting portion provided therein, and a wall portion surrounding the mounting portion along the opening circumference.

The housing 2 is preferably made of a material having high strength, heat resistance, and low heat shrinkage, and typically includes ABS (Acrylonitrile Butadiene Styrene).

Next, the magnetic unit 3 contacts the first magnetic body 31 disposed at the center of the mounting unit, and the second magnetic body disposed to be spaced apart from each other so as to contact the inner surface of the wall and to form a spacer 33 around the first magnetic body 31. 32).

In addition, the vibration unit 4 is disposed above the opening of the housing 2, the upper vibration plate 4 in contact with the wearer's head, the lower vibration plate 42 disposed below the opening of the housing 2, the upper vibration plate 4 Between the diaphragm plate 43 interposed between the lower vibration plate 42 and the opening of the housing 2, the lower vibration plate 42 coupled to the lower portion of the first magnetic body 31, and the second magnetic body 32. And a vibration coil 44 inserted between the 33.

First, the generation of vibration due to the interaction between the magnetic unit 3 and the vibration unit 4 will be described briefly. The magnetic unit 3 is an electromagnetic field formed by the interaction between the vibration coils 44 of the vibration unit 4 described later. The upper vibration plate 4 and the lower vibration plate 42 are vibrated by the generated electromagnetic field. At this time, the diaphragm 43 makes the vibration intensity harder, so that more efficient vibration can be generated.

A key feature of the present invention is that the magnetic unit 3 is composed of a first magnetic body 31 and a second magnetic body 32 formed to form a mutually spaced portion 33, the first magnetic body 31 and The separation structure of the second magnetic body 32 generates an electromagnetic field having a stronger intensity than when a single magnetic body is introduced, and thus the vibration force transmitted to the upper vibration plate 4 and the lower vibration plate 42 can be enhanced. Can provide clearer sound quality. In particular, it is obvious that external sounds through the wearer's ears are introduced together in the process of using the acoustic device, and thus the clarity of the sound quality must be guaranteed so that the sound quality is not degraded by the external sound.

In addition, it is preferable that the diaphragm plate 43 of the vibration unit 4 has elasticity itself so that deformation and restoration of the shape can be performed. The diaphragm plate 43 further enhances the vibration transmitted from the lower vibration plate 42 to the upper vibration plate 4, thereby providing improved clarity of sound quality.

In addition, in FIG. 2 [A], the through hole 430 formed in the diaphragm plate 43 can be confirmed. The vibration force transmitted from the lower vibration plate 42 to the upper vibration plate 4 is provided through the through hole 430. The function of the diaphragm 43 to strengthen can be further enhanced.

Next, as another core feature of the present invention, the communication unit of the sound device is characterized by communicating with a wearer's smart terminal equipped with a Bluetooth module.

Accordingly, as described above, the wearer's smart terminal (ex. Smartphone) can be operated to listen to music or to make a call, and since both hands are free, driving, talking on the phone, listening to music, etc. are possible. Has the advantage.

Next, as a further feature of the present invention, as shown in FIG. 2, the magnetic unit 3 of the acoustic device includes a first conductive plate 35 and a second magnetic body 32 covering an upper portion of the first magnetic material 31. It further comprises a second conductive plate 36 covering the upper portion of, and the support plate 37 for supporting the lower portion of the first magnetic material 31 and the second magnetic material (32).

This structure is caused by the structures of the first magnetic material 31 and the second magnetic material 32, which are spaced apart from each other, and in particular, the first conductive plate 35 and the second conductive plate 36 are also provided to be spaced apart from each other. It is desirable to further enhance the strength of the electromagnetic field generated by.

On the other hand, the sound device further comprises a battery (b) for supplying power to the magnetic unit (3) and the vibration unit (4), the application of external power when the charging of the battery (b) using an external power source is completed 3, there is shown an embodiment of a power supply means for implementing such a feature.

In particular, after charging is completed, in order to reduce power loss, it is preferable to block the application of external power supplied to the battery b, but in the case of blocking the application of external power supplied to the battery b during charging (battery ( b) the charging terminal is connected to an external power source), when the power is remotely turned on / off through a smart terminal connected to a communication module, or an operation such as listening to music or a call is cut off, Since the power supply through the battery (b) must be made again, the capacity consumption of the battery (b) results in a decrease in charging efficiency.

In order to solve this problem, the present invention can supply the power supply to the internal component circuits when external power is applied to the battery (b) during charging or when external power is not applied to the battery (b) when the charging is completed. And a power supply means.

Hereinafter, with reference to the accompanying drawings will be described for the implementation of the power supply means 5 which is an embodiment of the present invention.

As shown in the figure, the power supply means 5 is an external power supply circuit 511 for generating a supply power supply (Vcc) using an external power source (s) and the external power source when the application of the external power source (s) is cut off. a power supply unit 51, an external power supply circuit 511, or an internal power supply unit having an internal power supply circuit 513 for generating an internal power source using (s) and generating a supply power source (Vcc) using the internal power source; It comprises a switch unit 52 for selecting the operation of the power supply circuit 513, and a control unit 53 for controlling the internal power.

In particular, the power supply unit 51 operates the external power supply circuit 511 when the switch unit 52 is turned on to generate the supply power Vcc by using the external power source s, and the switch unit 52 is turned off. In operation, the internal power supply circuit 513 is operated to generate internal power from the external power source s, and the supply power source Vcc is generated using the internal power source.

Here, the supply power source Vcc is a power source generated through an external power source s or an internal power source and applied for the operation of each component.

More specifically, the external power supply circuit 511 of the power supply unit 51 has a capacitor C1 and a first rectifying diode BD1 connected in series with an external power source s, and a charging capacitor C5 connected in parallel thereto. It includes.

In addition, the internal power supply circuit 513 may include a bridge diode BD3 connected in parallel to an external power source s, a transformer T1 and a second rectifying diode BD2 connected in parallel thereto, and a charging capacitor connected in parallel thereto. C5).

In the above description, the charging capacitor C5 has the same configuration, and is configured to be charged by the current rectified by the first and second rectifying diodes BD1 and BD2 to store and output the supply power Vcc. Configuration.

In addition, the output terminals of the external power supply circuit 511 and the internal power supply circuit 513 are connected to each other, that is, the output terminal of the first rectifying diode BD1 and the output terminal of the second rectifying diode BD2 are connected to each other.

Next, the switch unit 52 is configured to select an operation of the external power supply circuit 511 or the internal power supply circuit 513, and includes a switching element Q1 (Triac) connected in series with the bridge diode BD3. . The on / off determination signal of the switch unit 52 may be transmitted anywhere outside or inside the apparatus, and the signal generation circuit of the switch unit 52 is omitted, but those skilled in the art If you have it, you can understand and reason.

In addition, one end of the control unit 53 is connected to the bridge diode (BD3) or transformer (T1) connected in parallel with each other, the other end is composed of a resistor (R1) (R2) and a capacitor (C2) (C3) connected to the ground. The control unit 53 may be connected to both the transformer T1 and the bridge diode BD1.

In addition, as shown in the figure, the external power supply circuit 511 is connected to the first rectifying diode BD1 at one end thereof to ground and the supply power Vcc generated from the external power source s is dropped. It further includes a resistor (R3). Due to the drop resistance R3, the first rectifier diode BD1 may be prevented from being destroyed by the high voltage of the external power source s.

In addition, the power supply unit 51 further includes a stabilization circuit provided at the output terminals of the first rectifying diode BD1 and the second rectifying diode BD2, and the stabilizing circuit includes a first rectifying diode BD1 and a second rectifying diode. Zener diode ZD1 connected in parallel to the output of BD2, a capacitor C4 connected in parallel with the zener diode ZD1, and an inductor L1 connected to the charging capacitor C5 and the zener diode ZD1 at both ends. It is made, including.

The circuit operation of the power supply means 5 will be briefly described with reference to the drawings. First, when a switch-on signal is input to the switch unit 52 (the external power supply s is stopped), the switch unit 52 is provided. When the bridge diode (BD3) -switching element (Q1) is turned on and the switch-off signal is input (external power supply (s) is started), the switch unit 52 is turned off and the bridge diode (BD3) is turned on. ) -Switching element Q1 'is mutually open. Therefore, as mentioned above, the power supply unit 51 provides the supply power (Vcc) divided into two cases when the switch unit 52 is on and off.

First, when the operation of the circuit in which the switch section 52 is turned on, in this case, the switching element Q1 is short-circuited and a current flows through the bridge diode BD3-switching element Q1 'line to obtain a voltage drop. . The voltage applied to the bridge diode BD3 is transformed by the transformer T1, rectified by direct current through the second rectifying diode BD2, and then charged in the charging capacitor C5.

Therefore, when the supply of the external power source s is cut off, the generation of the internal voltage uses the voltage drop in the bridge diode BD3, but the role of the original bridge diode is for rectification (the first and second rectifier diodes ( BD1) (BD2)) and two non-adjacent rectifier terminals of the bridge diode (bridge diodes are composed of four rectifying terminals connected in a cycle) can also be shorted to induce a voltage drop. Such internal power generation has the same performance as the method of configuring a bridge circuit using four separate diodes, but has the effect of reducing the number of components, mounting size, cost, and reducing the probability of failure.

Next, the operation of the circuit in the case where the switch unit 52 is turned off will be described. The switching element Q1 is opened, and the 'trans (T1) -resistance (R2) -capacitor' (the primary side of the transformer T1) is explained. (C3)) 'Capacitor (C1)-First rectifier diode (BD1)-Drop resistance due to the impedance difference between the line' and 'Capacitor (C1)-First rectifier diode (BD1)-Drop resistor (R3)' The current flows only to the (R3) 'line. Therefore, the AC current generated by the external power source s flows through the capacitor C1 to the first rectifying diode BD1, rectified by DC in the first rectifying diode BD1, and charged in the charging capacitor C5.

At this time, the zener diode ZD1 connected in parallel to the output terminals of the first rectifying diode BD1 and the second rectifying diode BD2, which are stabilization circuits, prevents overvoltage, and the inductor L1 and the capacitor C4 are rectified DCs. Remove the noise component included in the.

The supply power Vcc generated through the power supply means 5 may be applied to each component and used, but there is a need for supplying more refined power for stable supply of power to each component. Accordingly, the present invention further includes several configurations for refining the power supply.

The structure for purifying the supply power includes a transformer 54 for transforming a supply power that is a DC power source, a detector 55 for detecting a noise component of the transformed supply power, and a filter unit 56 for removing noise of the detected supply power. There is).

Hereinafter, the configuration and operation of the transformer 54, the detector 55, and the filter 56 will be described in more detail with reference to the accompanying drawings.

First, as shown in the figure, the power supply means 5 further comprises a transformer 54 which is connected to the output terminal of the power supply 51 to adjust the voltage of the supply power (Vcc).

More specifically, as shown in the figure, the voltage transformer 54 is connected to the output terminal of the power supply unit 51 to the voltage dividing circuit 541 for dropping the voltage of the power supply Vcc, to the voltage dividing circuit 541. A protection circuit 543 connected to protect the overvoltage, a resonance circuit 545 connected to the protection circuit 543 to remove the influence of harmonics, and a transformer circuit 547 to adjust the voltage of the supply power supply Vcc. It is made to include.

Referring to the drawing, the voltage dividing circuit 541 is formed of a variable resistor RV2 connected in series to the output terminal of the power supply unit 51, and is applied to the transformer unit 54 through a voltage drop in the variable resistor RV2. The voltage can be adjusted so as not to be excessive.

In addition, as shown in the figure, the protection circuit 543 includes a zener diode ZD2 and a capacitor C6 connected in parallel to the output terminal of the voltage divider circuit 541. The zener diode ZD2 includes a voltage divider circuit 541. Remove the surge that may be included in the supply power (Vcc) passing through to the ground side, and the capacitor (C6) is the supply power (Vcc) passed through the voltage divider circuit 541 is directly to the resonant circuit (545) It acts as a buffer so that it is not authorized.

In addition, as shown in the figure, the resonant circuit 545 includes an inductor L1 connected in parallel to the output terminal of the protection circuit 543, and additionally, as long as they are alternately switched according to the direction of the organic electromotive force of the transformer circuit 547. And a pair of switching parts and a capacitor C7 connected to the output of the switching parts.

Here, the switching part includes npn transistors Q2 and Q3 connected to the primary side of the transformer circuit 547, a zener diode ZD3 and ZD4 and a resistor R4 and R5 connected in parallel thereto. In particular, the switching part is characterized in that it is provided symmetrically on both ends of the transformer of the transformer circuit (547).

As shown in the figure, the transformer circuit 547 includes a transformer T2 and a diode D1 D2 connected to the secondary side of the transformer T2. Diodes D1 and D2 provide stability by delaying the output of power supply Vcc through transformer circuit 547.

Next, as shown in the figure, the power supply means 5 is connected to the output terminal of the transformer 54, the detection unit 55 for detecting the noise component of the supply power (Vcc) transformed to the supply power (Vcc) It further comprises.

The detection unit 55 is largely connected to the output terminal of the transformer unit 54 to detect a noise component of the transformed power supply (Vcc), the detection circuit 551 is connected to the detection circuit 551 is connected to the detection circuit 551 The delay circuit 553 to delay the operation of the delay circuit 553 and one end and the relay circuit 555 connected to the filter unit 56 is formed. The detector 55 receives the power supply Vcc separately and uses the power supply Vcc to read whether the noise is detected without affecting the output voltage.

Referring to the drawings, the detection circuit 551 comprises a resistor R6 and a capacitor C8 connected in series to remove a DC component of the power supply Vcc, two resistors R7 and R9 connected in parallel to each other. And a detection part including a reference voltage generation part including a capacitor C9, an OP amplifier OP1, and a detection resistor R10 connected to an inverting terminal of the OP amplifier OP1. The detection circuit 551 detects the noise by comparing the reference voltage generated in the reference voltage generation part with the amount of noise across the detection resistance of the detection part.

In addition, the delay circuit 553 is connected to the output terminal of the OP amplifier OP1 of the detection circuit 551, and includes a reverse diode D3, a resistor R11, and a capacitor C10 connected in parallel with each other. In the description of the provision of such a delay circuit 553, in general, noise is not generated continuously but is intermittently generated. Thus, if there is no delay circuit 553, the relay circuit 555 repeats the on / off quickly and in a short period of time. To prevent this, the delay circuit 553 does not turn off the relay circuit 555 for a certain time after the operation of the relay circuit 555 once. Reset

In addition, the relay circuit 555 includes a reverse diode D4, a relay RL1, a transistor Q4, an OP amplifier OP2, OP3, a resistor R, R13, R14, R15, R16, and a capacitor. (C) (C12), but such a relay circuit 555 is a generally known circuit, so that a detailed description thereof may be understood and inferred by those skilled in the art.

When the filter unit 56 for removing noise through the detection unit 55 does not always operate and noise does not occur, the operation is blocked by the relay circuit 555, so that the capacitor used in the filter unit 56 is used. The life of (C13) (C14) (C15) (C16) can be extended.

Next, as shown in the figure, the power supply means 5 further comprises a filter unit 56 for removing noise of the supply power (Vcc) detected by the detection unit 55.

According to the present invention, the filter unit 56 includes a first filtering circuit 561, a second filtering circuit 562, and a third filtering circuit 563 to completely remove the generated noise. It can be characterized by.

As shown in the figure, the first filtering circuit 561 and the second filtering circuit 562 are connected to the relay circuit 555 and driven by the relay circuit 555.

In addition, the first filtering circuit 561 includes an npn transistor Q5, a first diode D5 having a cathode connected to the collector of the npn transistor Q5, and a resistor R17 connected in parallel thereto. The positive signal of the noise signal included in Vcc) is bypassed to ground.

The second filtering circuit 562 includes a pnp transistor Q6, a second diode D6 connected to an anode of the collector of the pnp transistor Q6, and a resistor R18 connected in parallel thereto. The negative signal among the noise signals included in Vcc) is bypassed to ground.

Meanwhile, the emitters of the transistors Q5 and Q6 of the first filtering circuit 561 and the second filtering circuit 562 are connected to the variable resistors RV3 and RV4 and the capacitor C13 and C14 connected in parallel to each other. A correction part is provided, and this correction part removes minute residual noise and contributes to power quality improvement.

In addition, the third filtering circuit 563 is connected to the output terminals of the first filtering circuit 561 and the second filtering circuit 562, and the resistor R19 and the capacitor C15 connected in parallel, the capacitor C16 connected in series thereto, and Forward diode D8.

Referring to the operation process, the forward diode D8 blocks the flow of current in one direction, flows to one side (up and down on the drawing), and the resistor R19 and the capacitor C15 connected in parallel to each other act as a filter. The noise component remaining in the power supply Vcc passed through the first and

second filtering circuits

561 and 562 is completely removed.

The filter unit 56 having the triple noise elimination function and the additional noise elimination function can be used to obtain a DC power source from which noise is completely removed, and use this as a final supply power supply (Vps) to provide operation of each component. can do.

In the above description with reference to the accompanying drawings, the present invention has been described with reference to specific shapes and directions, but the present invention may be variously modified and changed by those skilled in the art, and such modifications and changes are included in the scope of the present invention. Should be interpreted as

Claims

A body having a head wearing part in contact with the wearer's head and having two spaced ends spaced apart from each other;

A housing including an opening provided in an upper side, a mounting part provided in the inside, and a wall part surrounding the mounting part along an opening circumference, and coupled to a position adjacent to the spaced end of the head wearing part;

A magnetic unit including a first magnetic body disposed at the center of the mounting portion, and a second magnetic body disposed in contact with an inner surface of the wall portion and spaced apart from each other to form a space around the first magnetic body;

An upper vibration plate disposed above the opening and contacting the wearer's head, a lower vibration plate disposed below the opening, interposed between the upper vibration plate and the lower vibration plate to cover the opening, and coupled to a lower portion of the lower vibration plate. A vibration unit including a vibration coil inserted between the spaced portions of the first magnetic body and the second magnetic body; And

A communication unit having a Bluetooth module for communicating with a wearer's smart terminal;

Including,

The magnetic unit is

A first conductive plate covering an upper portion of the first magnetic body, a second conductive plate covering an upper portion of the second magnetic body, and a support plate supporting the lower portions of the first magnetic body and the second magnetic body,

It further comprises a battery for supplying power to the magnetic unit and the vibration unit, when the charging of the battery using the external power is completed to limit the application of external power,

And a power supply means for supplying power to the battery.

The power supply means includes an external power supply circuit that generates supply power using an external power source, and an internal power source that generates an internal power source using an external power source when the external power supply is blocked, and generates a supply power source using the internal power source. A power supply having a supply circuit,

Switch unit for determining the operation of the external power supply to select the operation of the external power supply circuit or internal power supply circuit,

Control unit for controlling the internal power generated through the internal power supply circuit,

A transformer unit connected to an output terminal of the power supply unit to adjust a voltage of the DC power supply;

A detection unit connected to an output terminal of the transformer unit and detecting a noise component of the transformed power supply;

It includes a filter for removing the noise of the power supply detected by the detection unit,

The external power supply circuit includes a capacitor C1 and a first rectifying diode BD1 connected in series to an external power source, and a charging capacitor C5 connected in parallel thereto.

The internal power supply circuit includes a bridge diode BD3 connected in parallel to an external power source, a transformer T1 and a second rectifying diode BD2 connected in parallel thereto, and a charging capacitor C5 connected in parallel thereto.

Hair band type bone conduction sound device, characterized in that the output terminal of the first rectifying diode (BD1) and the output terminal of the second rectifying diode (BD2) is connected to each other.
The method according to claim 1,

The transformer unit is connected to the output terminal of the power supply unit to reduce the voltage of the supply power supply, a protection circuit connected to the voltage divider circuit to protect the overvoltage, and a resonance circuit connected to the protection circuit to remove the influence of harmonics And a transformer circuit for regulating the voltage of the power supply,

The detection unit includes a detection circuit connected to an output terminal of the transformer unit to detect a noise component of the transformed power supply, a delay circuit connected to the detection circuit to delay the operation of the detection circuit, and a relay circuit one end connected to the delay circuit. and,

The filter unit includes a symmetric first filtering circuit and a second filtering circuit connected to the relay circuit of the detection unit and driven by the relay circuit, and a third filtering circuit connected to an output terminal of the first filtering circuit and the second filtering circuit. and,

The voltage divider circuit includes a variable resistor RV2 connected in series to the output terminal of the power supply unit.

The protection circuit is composed of a zener diode (ZD2) and a capacitor (C6) connected in parallel to the output terminal of the voltage divider circuit,

The resonant circuit includes an inductor L1 connected in parallel to an output terminal of the protection circuit, a pair of switching parts alternately switched according to the direction of the organic electromotive force of the transformer circuit, and a capacitor C7 connected to the output terminal of the switching part. The switching part may include npn transistors Q2 and Q3 connected to the primary side of the transformer circuit, a zener diode ZD3 and ZD4 connected in parallel thereto, and a resistor R4 and R5. ,

The transformer circuit comprises a transformer (T2) and a diode (D1) (D2) connected to the secondary side of the transformer (T2),

The detection circuit is composed of a series of resistors (R6) and a capacitor (C8) connected in series to remove the DC component of the power supply, and a reference voltage generation consisting of two resistors (R7) (R9) and capacitor (C9) connected in parallel to each other A part, and a detection part including an OP amplifier OP1 and a detection resistor R10 connected to an inverting terminal of the OP amplifier OP1,

The delay circuit is connected to the output terminal of the OP amplifier (OP1) of the detection circuit, the hairband type bone conduction, characterized in that it comprises a reverse diode (D3), a resistor (R11) and a capacitor (C10) connected in parallel with each other Sound system.