KR100781683B1 - Macro speaker unit and a macro speaker using thereof - Google Patents

Abstract

A small speaker unit and a small speaker using the same are disclosed. The speaker unit is formed in an arc-shaped concentric with the installation groove so that one side of the installation groove inlet is in close contact with the lower portion of the inlet of the ear canal of the user, and the other side of the installation groove inlet is asymmetrical with the arc so as to be seated on the top of the inlet of the ear canal of the user Yoke formed of semi-ellipse forming; A permanent magnet inserted into the installation groove; Magnetic plates and diaphragms to ensure the magnetic force of the permanent magnet; A fixing ring for fixing the edge of the diaphragm to the yoke; A voice coil disposed on the rear surface of the diaphragm; Rivets for coupling each part to the yoke; And a cover member disposed at the inlet side of the installation groove of the yoke, and the housing having the arc-shaped portion and the semi-elliptical portion is coupled to the small speaker unit. Such a speaker is formed in the shape of an egg so as to match the shape of the inlet of the ear canal, so that a stable fit can be expected, and the ear can not be pressed against the inlet of the ear canal so that it can be worn for a long time, and the sound quality can be improved compared to the speaker unit of the same size. Effect is provided.

Ultra-Small, Speaker, Unit, Asymmetric

Description

Small speaker unit and small speaker using the same {MACRO SPEAKER UNIT AND A MACRO SPEAKER USING THEREOF}

1 is an exploded perspective view showing a small speaker unit according to a first embodiment of the present invention.

2 is a plan sectional view showing the small speaker unit shown in FIG.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a perspective view of a small speaker having the speaker unit shown in FIG. 1;

5 is a use state showing the wearing state of the small speaker shown in FIG.

6 is a plan view showing a small speaker unit according to a second embodiment of the present invention.

7 is a cross-sectional view showing a compact speaker unit according to the prior art.

8 is a use state diagram of the small speaker unit shown in FIG.

<Description of the symbols for the main parts of the drawings>

10: yoke 12: mounting groove

12-1: entrance 20: permanent magnet

30: magnetic plate 40: vibration plate

50: retaining ring 60: voice coil

70: PC 80: Rivet

90A, 90B: Cover member 100: Arc type

120: half oval 200: housing

210: arc portion 220: half elliptical portion

230: handle portion

The present invention relates to a small speaker unit and a small speaker using the same, and in particular, the shape of the user's external auditory meatus can be expected to be stable, and can provide improved sound quality compared to the speaker unit of the same size. It relates to a speaker unit.

In general, a micro speaker unit mounted on an audio device or a communication device such as an audio, earphone, headphone, and a mobile phone has a yoke 1 having one side open and an installation groove 1-1 formed therein, as shown in FIG. 7. In addition, the permanent magnet (2) disposed inside the installation groove (1-1) of the yoke (1), the magnetic plate (3) to ensure the magnetic force of the permanent magnet (2), the permanent magnet (2) and The diaphragm 4 which is attached to the yoke 1 while covering the magnet plate 3, the fixing ring 5 for fixing the edge of the diaphragm 4 to the yoke, and the rear surface of the diaphragm 4 And a rivet 8 for coupling the voice coil 6 to be coupled to the permanent magnet 2, the magnet plate 3, and the PCB 7 disposed on the rear surface of the yoke 1, and the inside of the yoke 1 It consists of a cover member (9) installed on the inlet side of the installation groove (1-1) of the yoke (1) to protect the diaphragm (4) installed in.

The speaker unit having such a configuration is inserted into the external auditory canal entrance E of the user as shown in FIG. 8 after being combined with an injection molding (not shown).

However, the speaker unit according to the prior art having such a structure has the following problems.

That is, in the speaker unit according to the related art, various components installed in the installation groove 1-1 of the yoke 1, including the yoke 1, are all formed in a circular shape as shown in FIG. When the upper part is narrow and the lower part is inserted into the outer ear canal inlet E, the lower part of the speaker unit is in close contact with the lower ear canal inlet E, but the upper part of the speaker unit is narrow in the upper ear canal inlet E. While being in close contact with the cartilage area (E-3) in the upper part of the entrance to the ear canal (E) there was a problem that the user feels pain.

That is, since the speaker unit formed in a circular shape is inserted into the outer ear canal inlet E of a narrow upper part and the lower part of the ear canal, the shape of the speaker unit does not match the shape of the ear canal inlet E, and thus the upper part of the speaker unit is the ear canal. There was a problem that the pain caused by pressing the upper side cartilage protrusion (E-3) of the inlet (E).

On the other hand, since the shape of the speaker unit and the shape of the external auditory meatus (E) do not match, there is a problem that the speaker unit may not be stably worn at the external auditory meatus (E) and may be detached from the external auditory meatus (E).

In view of this problem, the diameter of the yoke 1 could be formed small so that the speaker unit could be easily inserted into the ear canal inlet E. However, in this case, the yoke 1 having a small influence on the sound quality is formed so that There was a problem that the sound quality is degraded.

The present invention has been made in order to solve the problems of the prior art as described above, the technical problem of the present invention is to provide a speaker unit formed in a shape that matches the shape of the external auditory canal inlet.

Another technical problem of the present invention is to expect a stable fit, to minimize the pain of the user, to maintain the sound quality of the speaker speaker unit formed in a shape that matches the shape of the entrance to the ear canal or the shape of the entrance to the ear canal. To provide a compact speaker consisting of.

In order to solve the above technical problem, the present invention,

A yoke having a portion protruding in a central axis direction and having a circular installation groove formed therein;

A permanent magnet inserted into the installation groove of the yoke;

Magnetic plates and diaphragm to ensure the magnetic force of the permanent magnet;

A fixing ring for fixing an edge of the diaphragm to the yoke;

A voice coil disposed on the rear surface of the diaphragm;

A PCB disposed on the rear surface of the permanent magnet, the magnetic plate, and the yoke and coupled to the rear surface of the yoke by rivets; And

A compact speaker unit comprising; a cover member disposed at an inlet side of an installation groove of the yoke to protect the diaphragm installed in the installation groove of the yoke.

One side of the installation groove inlet of the yoke is formed in an arc shape concentric with the installation groove so as to be in close contact with the lower portion of the inlet of the ear canal of the user, and the other side of the installation groove inlet is asymmetrical with the arc shape so as to be seated on the upper side of the inlet of the ear canal. Formed into a half oval,

The diaphragm, the fixing ring and the cover member are provided in a circular arc shape so as to match the inlet shape of the installation groove, the other side is provided with a small speaker unit characterized in that it is formed in a semi-elliptical form asymmetrical with the arc. .

In addition, the present invention,

A yoke having a portion protruding in a central axis direction and having an installation groove formed therein;

A permanent magnet inserted into the installation groove of the yoke;

Magnetic plates and diaphragm to ensure the magnetic force of the permanent magnet;

A fixing ring for fixing an edge of the diaphragm to the yoke;

A voice coil disposed on the rear surface of the diaphragm;

Rivets for coupling the PCs disposed on the rear surfaces of the permanent magnets, the magnetic plates, and the yokes; And

As a small speaker unit to be worn at the inlet of the ear canal including a; a cover member disposed on the installation groove inlet side of the yoke to protect the diaphragm installed in the installation groove of the yoke,

One side of the installation groove of the yoke is formed in an arc shape so as to be in close contact with the lower part of the inlet of the ear canal of the user, and the other side of the installation groove is formed in a semi-elliptical shape which is asymmetrical with the arc shape so as to be seated on the upper side of the inlet of the ear canal.

The diaphragm, the voice coil, the fixing ring and the cover member are formed to have an arc-shaped one side so as to match the shape of the installation groove, the other side is provided with a small speaker unit characterized in that it is formed in a semi-elliptical form asymmetrical with the arc. do.

In addition, the present invention is a portion of the yoke of the above-mentioned small speaker unit is wrapped in a housing, one side of the housing in contact with the opposite side of the installation groove inlet of the yoke is formed an arc-shaped portion to surround the arc-shaped, the other side the elliptical A semi-elliptic portion is formed to surround the inside of the handle portion, and provides a compact speaker characterized in that an electric wire is electrically connected to the PCB.

As described above, the shape of the speaker unit and the shape of the speaker including the housing are formed (matched) to the inlet shape of the ear canal, so that a small speaker (earphone) can be easily and stably worn at the inlet of the ear canal, and the speaker can be easily Do not press abnormally on one part of the pain can be eliminated due to long time wearing of earphones.

When described in detail with reference to the accompanying drawings, each preferred embodiment of the present invention having such features as follows.

1 is an exploded perspective view showing a small speaker unit according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing the small speaker unit shown in FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2, and FIG. 4 is a perspective view showing a small speaker having the speaker unit shown in FIG.

The asymmetry found in the claims and the detailed description of the present invention means that both sides are not symmetrical with respect to the center of the installation groove 12 of the yoke 10. In other words, it means that both sides are not symmetric with respect to the reference line C in the accompanying drawings.

As shown in FIGS. 1 to 3, the small speaker unit has a portion protruding in the direction of the central axis, and a circular installation groove 12 is formed therein, and one side is formed in an arc shape 100, and the other side is half. The yoke 10 is formed of an elliptical 120 and asymmetrical both sides, the circular permanent magnet 20 is installed seated on the inner bottom of the installation groove 12 of the yoke 10, and ensures the magnetic force of the permanent magnet Asymmetrical, such as the shape of the yoke 10 to be disposed on the inlet 12-1 side of the mounting groove 12 to surround the circular magnet plate 30, the permanent magnet 20 and the magnet plate 30 for The diaphragm 40, the fixing ring 50 asymmetrical like the shape of the yoke 10 so as to fix the edge of the diaphragm 40 to the installation groove 12 of the yoke 10, and the rear surface of the diaphragm 40 The voice coil 60 arranged in the body, the permanent magnet 20, the magnet plate 30 and the PC 70 is disposed on the rear surface of the yoke 20 are combined To the rivet 80 and the diaphragm 40 installed in the mounting groove 12 of the yoke 10 to be disposed at the inlet 12-1 side of the mounting groove 12 of the yoke 10 and to the yoke 10. It is composed of cover members 90A and 90B which are asymmetrical as shown in FIG.

Looking at this in more detail as follows.

As shown in FIGS. 1 to 3, the yoke 10 has a portion protruding toward one side (in the direction of the center axis of the installation groove 12), and a circular installation groove 12 is formed therein, and the installation groove is provided. One side of the inlet 12-1 of 12 is formed as an arc-shaped 100 concentric with the installation groove 12. And, the other side of the inlet 12-1 of the installation groove 12 is formed as a semi-ellipse 120, not concentric with the installation groove 12 to form an asymmetry with respect to the center point of the installation groove 12. That is, the inlet 12-1 of the installation groove 12 is the circular arc 100 and the half elliptical 120 is combined to form a rounded one side and the other egg-shaped or water droplets protruding.

The shape of the installation groove 12 inlet 12-1 side of the yoke 10 as described above is composed of an arc shape 100 and a semi-ellipse 120 to form an asymmetry in shape of the inlet of the ear canal (E). To fit with each other) to improve the wearability of the speaker unit. That is, the arc shape 100 of the yoke 10 is in close contact with the lower side of the ear canal entrance E and the semi-elliptic 120 is in close contact with the upper one side of the ear canal entrance E to improve wearability.

A plurality of through holes may be formed in the yoke 10.

On the other hand, the permanent magnet 20, the magnetic plate 30, etc. inserted into the installation groove 12 to be coupled to the yoke 10 by the rivet 80 has a circular shape.

However, the diaphragm 40, the fixing ring 50, and the like to be installed in the installation groove 12 inlet 12-1 of the yoke 10 are formed on both sides of the yoke 10, like the inlet side of the installation groove 12. The curvature is formed in an egg shape with different (asymmetrical) shapes and is installed at the inlet side of the installation groove 12. That is, after the diaphragm 40 is seated at the inlet 12-1 of the installation groove 12, the edge of the diaphragm 40 is inserted by inserting the fixing ring 50 into the inlet 12-1 of the installation groove 12. It is fixed.

In addition, the cover members 90A and 90B for protecting the components installed in the installation groove 12 are also formed in the same shape as the inlet 12-1 of the installation groove 12 of the yoke 10. At this time, the cover member (90A, 90B) is made of a metal material or synthetic resin material is installed on the inlet 12-1 side of the installation groove 12, the inner cover member 90A for protecting the internal parts and the fabric, It is composed of ash, etc. can be divided into an outer cover member (90B) for blocking the inflow of foreign matter.

 Since the coupling process of each component of the speaker unit according to the present invention configured as described above is a general one, detailed description thereof will be omitted.

On the other hand, the small speaker having a speaker unit configured as described above is a housing 200 formed to surround a portion (opposite side of the inlet 12-1 of the installation groove 12) the yoke 10 in the yoke 10 of the speaker unit. ) Has a combined structure.

The housing 200 covers a portion of the yoke 10 to which the cover members 90A and 90B are not coupled, as shown in FIG. 4, to protect the wires connected to the PC 70, and to easily attach the speaker. For the purpose, the arc-shaped portion 210 is formed on one side of the installation groove 12 of the inlet 12-1 of the yoke 10, the half-elliptical portion 220 is formed on the other side, the handle The portion 230 protrudes. The arc-shaped portion 210 and the half-elliptic portion 220 are a portion of the yoke 10, that is, the arc portion 100 and the semi-ellipse 120 of the portion where the installation portion 12 protrudes opposite the inlet 12-1. It is coupled to the yoke 10 to surround it. The housing 200 is firmly coupled to the yoke 10 by a coupling member such as a rubber ring in a state in which the yoke 10 is wrapped. The housing 200 is preferably made of a synthetic resin material.

 The wires electrically connected to the PCB 70 coupled to the protruding portions of the installation part 12 are connected to the outside through the interior of the housing 200.

Referring to the operation of the small speaker to which the speaker unit configured as described above is described as follows.

The arc-shaped portion 210 and the semi-elliptical portion 220 are formed outside the yoke 10 of the speaker unit in which the various signals for converting the electrical signal into the sound have the same shape as the yoke. The small speaker formed by coupling the housing 200 surrounding the yoke 10 is described on the basis of being worn at the entrance to the ear canal.

As shown in FIG. 5, the lower side of the ear canal entrance E forms a relatively round and wide arc between the two movements E-1 and I-2, the upper portion of which is a cartilage protrusion E-3 and cartilage. It has a shape gradually narrowed by the inner wall E-4 of the auricle. That is, the upper part has an oval shape and the lower part has an oval shape which is asymmetrical with the upper part.

Therefore, a small speaker including a housing 200 surrounding the yoke 10 having the same shape as the yoke 10 having an egg shape consisting of an arc shape 100 and a semi-ellipse 120 is provided at the inlet of the ear canal E. In order to be worn, the handle unit 230 of the small speaker combined with the speaker unit and the housing 200 is inserted into the external auditory canal entrance E, but the housing 200 surrounding the arc shape 100 of the yoke 10. The arcuate portion 210 of the) is located on the lower side of the inlet of the ear canal, and the semi-elliptical portion 220 surrounding the half oval 120 of the yoke 10 is the upper one side of the inlet of the ear canal (E). Between the protrusion (E-3) and the inner wall (E-4) of the wheel. That is, as shown in FIG. 5, the semi-elliptic part 220 is inserted inclined so as to be positioned between the cartilage protrusion E-3 and the inner wall E-4 of the auricle.

When the small speaker is inserted into the ear canal inlet E in this manner, the outer peripheral surface of the arc 210 of the housing 200 is in close contact with the lower side of the ear canal inlet E, and the outer circumferential surface of the semi-elliptic part 220 is the ear canal. It is in close contact with the upper one side of the inlet (E) to complete the wearing.

At this time, the arc-shaped portion 210 of the housing 200 surrounding the arc-shaped 100 formed on the yoke 10 of the speaker unit is the same (or similar) as the lower side shape of the outer ear canal entrance E formed in an arc shape. It is formed so as to, the semi-elliptical portion 220 of the housing 200 surrounding the semi-elliptic 120 of the yoke 10 is lower than the lower portion by the cartilage protrusion (E-3) and the inner wall (E-4) of the auricle. Since a narrow speaker is formed in the same (or similar) shape as the upper one side of the ear canal entrance E, the small speaker can be worn in the ear canal entrance E stably.

Then, one side of the small speaker located on the upper one side of the outer ear canal entrance E having a shape narrowed by the cartilage protrusion E-3 and the inner wall E-4 of the auricle is the upper side of the ear canal entrance E. As it is formed in a semi-elliptic shape that gradually narrows, even if the speaker unit is worn for a long time, the pain caused by the speaker unit pressing the cartilage protrusion E-3 of the ear canal entrance E and the inner wall E-4 of the auricle wheel may Minimized or not generated.

In other words, since the cartilage protrusion (E-3) of the ear canal entrance (E) and the inner wall (E-4) of the auricle are formed in a narrowing structure, the shape similar to the upper shape of such an ear canal entrance (E) The semi-elliptic 120 and semi-elliptical portion 220 of the cartilage protrusion (E-) is located at the upper one side (between the cartilage protrusion (E-3) and the inner wall (E-4) of the auricle) of the ear canal entrance (E). 3) and the inner wall of the auricle (E-4) will not be pressed and thus no pain will occur.

On the other hand, in the small speaker according to the present embodiment, the arc-shaped portion 210 of the housing 200 is caught between the migration E-1 and the completion E-2 to provide a stable wearing feeling.

In addition, since the small groove according to the present invention is formed such that the installation groove 12 of the speaker unit is protruded to the other side of the semi-ellipse 120, the sound quality is improved compared to the sound quality of the compact speaker according to the prior art of the same size. can do.

6 of the accompanying drawings is shown a second preferred embodiment according to the present invention.

The second embodiment of the present invention shown in FIG. 6 is the same as the first embodiment except that all parts of the speaker unit are formed in the arc shape 100 and the semi-ellipse 120. That is, one side of the installation groove 12 of the yoke 10 is formed as an arc-shaped 100 so as to be in close contact with the lower part of the user's external ear canal entrance E, and the other side of the installation groove 12 is the user's upper ear canal entrance E. It is formed as a half oval 120 to form an asymmetrical with the arc-shaped 100 to be seated on one side, the diaphragm 40, the fixing ring 50, the voice coil 60 and the cover member (installed in the installation groove 12) ( 90A and 90B are formed in a shape that matches the shape of the installation groove 12. In addition, the housing 200 surrounding the speaker unit yoke 10 also has an arc-shaped portion 210 and a semi-elliptical portion 220 that are joined to the arc-shaped 100 and the half-ellipse 120 of the yoke 10. will be. Accordingly, in the small speaker to which the speaker unit according to the second embodiment is applied, not only the yoke 10 but also various shapes installed in the installation groove 12 are formed in the same shape as the yoke 10, and the housing ( 200 is also formed in the same shape as the yoke 10 unless the cartilage protrusion E-3 of the external auditory meatus entrance E and the inner wall E-4 of the auricle wheel are pressed as in the first embodiment of the present invention. It can be worn stably.

In addition, the overall size of the speaker unit is not changed, but the permanent magnet 20, the diaphragm 40, the magnetic plate 30, etc., the arc shape 100 and the semi-ellipse 120 are combined, like the shape of the yoke 10 Since it is formed in a shape to increase the area, it provides an improved sound quality compared to the speaker unit of the same size.

The miniature speaker unit and the small speaker using the same according to the present invention are formed in an arc-shaped concentric with the installation groove so that one side of the installation groove inlet of the yoke is in close contact with the lower part of the external ear canal inlet of the user, and the other side of the installation groove inlet is the upper part of the inlet of the ear canal of the user It is formed in a semi-elliptical shape that is asymmetrical with the arc so as to be seated on the diaphragm, the diaphragm, the fixing ring and the cover member is formed in a shape that is matched with the inlet shape of the installation groove, the housing having an arc-shaped portion and an elliptical portion surrounds a part of the yoke. It is combined so that the shape of the small speaker is wide in one side and narrow in the other side, so that it can be matched or similar to the shape of the inlet of the ear canal, so that a stable fit of the speaker can be expected, and the speaker presses both lower sides of the inlet of the ear canal. This can minimize the pain of the user can be prevented It is possible to wear for a long time, the sound quality is improved compared to the speaker of the same size is provided.

Claims (3)

A yoke having a portion protruding in a central axis direction and having a circular installation groove formed therein; A permanent magnet inserted into the installation groove of the yoke; Magnetic plates and diaphragm to ensure the magnetic force of the permanent magnet; A fixing ring for fixing an edge of the diaphragm to the yoke; A voice coil disposed on the rear surface of the diaphragm; A PCB disposed on the rear surface of the permanent magnet, the magnetic plate, and the yoke and coupled to the rear surface of the yoke by rivets; And A compact speaker unit comprising; a cover member disposed at an inlet side of an installation groove of the yoke to protect the diaphragm installed in the installation groove of the yoke. One side of the installation groove inlet of the yoke is formed in an arc shape concentric with the installation groove so as to be in close contact with the lower portion of the inlet of the ear canal of the user, and the other side of the installation groove inlet is asymmetrical with the arc shape so as to be seated on the upper side of the inlet of the ear canal. Formed into a half oval, The diaphragm, the fixing ring and the cover member is one side is formed in an arc-shaped so as to match the inlet shape of the installation groove, the other side is a compact speaker unit, characterized in that formed in a semi-elliptical form asymmetrical with the arc. A yoke having a portion protruding in a central axis direction and having an installation groove formed therein; A permanent magnet inserted into the installation groove of the yoke; Magnetic plates and diaphragm to ensure the magnetic force of the permanent magnet; A fixing ring for fixing an edge of the diaphragm to the yoke; A voice coil disposed on the rear surface of the diaphragm; Rivets for coupling the PCs disposed on the rear surfaces of the permanent magnets, the magnetic plates, and the yokes; And As a small speaker unit to be worn at the inlet of the ear canal including a; a cover member disposed on the installation groove inlet side of the yoke to protect the diaphragm installed in the installation groove of the yoke, One side of the installation groove of the yoke is formed in an arc shape so as to be in close contact with the lower part of the inlet of the ear canal of the user, and the other side of the installation groove is formed in a semi-elliptical shape which is asymmetrical with the arc shape so as to be seated on the upper side of the inlet of the ear canal. The diaphragm, voice coil, the fixing ring and the cover member is formed in an arc-shaped one side so as to match the shape of the installation groove, the other side is a small speaker unit, characterized in that it is formed in a semi-elliptical form asymmetrical with the arc. A part of the yoke of the small speaker unit according to claim 1 or 2 is wrapped in a housing, and an arc-shaped portion is formed on one side of the housing which is opposite to the installation groove inlet of the yoke so as to surround the arc-shaped, and the other side is the half-ellipse. A semi-elliptical portion is formed to surround the compact speaker, characterized in that the wire is electrically connected to the PCB in the interior of the handle portion.

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