KR102181415B1 - High performance slim speaker - Google Patents

Abstract

According to the present invention, disclosed is a high performance slim speaker in which a plate and an external magnetic body are divided into n pieces (n is a natural number of 2 or more), and a support part is supported by an outer surface of a voice coil and extended to the outside of a side surface between the external magnetic body and the plate divided into n pieces. The high performance slim speaker comprises: a vibration pate mounted to be able to vibrate vertically by including a body part coupled to an external end part of the support part, an inner edge part extended to the inside of the body part to be coupled to a guide, and an external edge part extended to the outside of the body part to be coupled to an upper frame part; and a damper part coupling the support part and the upper frame part.

Description

High performance slim speaker {HIGH PERFORMANCE SLIM SPEAKER}

The present invention relates to a high-performance slim speaker, and more particularly, a plate and an external magnetic body are divided into n (where n is a natural number of 2 or more), and a supporter part is supported on the outer surface of the voice coil and divided into n external magnetic bodies and A body portion extending outward to the side of the plate and coupled to an outer end of the supporter portion, an inner edge portion extending inward of the body portion and coupled to the guide, and an outer edge extending outward of the body portion and coupled to the upper frame portion Including the part, the vibration plate mounted so as to be vibrated up and down, and the damper part coupling between the supporter part and the upper frame part are all moved to the outside of the magnetic field part, thereby maximizing the range of motion of the vertical amplitude of the voice coil within a slim structure. It is possible to use a magnetic material thicker than the conventional one because it is possible to have a slim structure, even though it is slim, the performance is further improved to obtain a high output, and to a high performance slim speaker capable of improving sound quality.

1 is a side cross-sectional view showing the configuration of a speaker according to the prior art.

As shown in FIG. 1, a conventional speaker includes a frame 10, a magnet 111 provided inside the frame 10 and formed of a ring, and an upper plate 112 above and below the magnet 111, respectively. , The lower plate 113 was installed to configure a magnetic circuit together with the pole piece 114.

Here, the coil provided in the vicinity of the magnet 111 is wound around the outer circumferential surface of the bobbin 120, and the bobbin 120 has an approximately central portion supported by the frame 10 by the damper 121 to move up and down. It is configured to enable vibration. In addition, a vibration plate 130 is coupled to an upper end of the bobbin 120, and the vibration plate 130 is connected to the frame 10 by an edge 140 made of an elastically deformable material.

Meanwhile, between the upper plate 112 and the pole piece 114, a magnetic force is formed by a magnet, and when a current is applied to the coil 122, the vibration plate 130 vibrates in the vertical direction by the force of Lorentz to the outside. Try to convey sound.

Since the speaker according to the prior art must have a thickness of about the height of the diaphragm 130 plus the thickness of the upper plate 112, the lower plate 113, and the magnet 111, the overall thickness is increased. There was an inevitable problem. In addition, there have been attempts to thin the thickness of the upper plate 112, the lower plate 113, and the magnet 111 in order to reduce the overall thickness, but when the thickness is reduced in this way, the strength of the magnetic force is weakened and the output There is a problem that this decreases and the sound quality deteriorates.

Moreover, when the vibration plate 130 is vibrated with a large amplitude, there is an effect of obtaining a high output, but as shown in the drawing, the damper 121 is installed between the bobbin 120 and the frame 10 and the upper plate 112 Since it is placed horizontally at the top, the range of motion of the upper and lower amplitudes of the voice coil wound on the bobbin 120 due to interference with the upper plate 112 is inevitably narrowed, and due to this, the amplitude of the diaphragm 130 is also narrowed. There is a problem that it is limited to increase the output beyond the size.

In relation, according to the Korean Utility Model Registration No. 20-0371619 (registered on Dec. 21, 2004, title of invention: thin speaker installed with a damper), a conventional patent document, "This design is a thin speaker equipped with a damper. ), as for a base body including a storage hole opened upward; an electromagnetic assembly installed in the storage hole and including at least a yoke, a magnet, an electrode plate, and a voice coil; an edge of the storage hole of the base body And a vibration membrane connected to surround the vibration membrane; a damper having a wave-shaped cross section is installed at the center of the vibration membrane; the voice coil of the electromagnetic assembly is installed on a side surface of the vibration membrane opposite the receiving hole and attached to the outer edge of the damper And the damper center is fixed to the electromagnetic assembly".

However, the range of motion of the upper and lower amplitudes of the voice coil is inevitably narrowed, and as a result, the amplitude of the diaphragm 130 is also narrowed, thereby limiting the increase in output beyond a certain size.

Registered Utility Model Publication No. 20-0371619 (2004.12.21), thin speaker with damper installed

The present invention was created to solve the above-described problem, and an object of the present invention is that the plate and the external magnetic body are divided into n (where n is a natural number of 2 or more), and the supporter part is supported on the outer surface of the voice coil and The body part extends outward to the side by the space between the divided external magnetic body and the plate, and the body part that is connected to the outer end of the supporter part, the inner edge part that is extended to the inside of the body part and connected to the guide, and the upper frame that extends outward of the body part Including the outer edge portion to be imposed and coupled, the vibration plate mounted so as to be vibrated vertically and the damper portion coupling between the supporter portion and the upper frame portion are all moved to the outside of the magnetic field portion, so that the upper and lower amplitude of the voice coil is It is possible to maximize the range of motion and use a thicker magnetic material with a slim structure, so that even though it is slim, its performance is further improved to obtain high output and to provide a high-performance slim speaker that can improve sound quality.

In the high-performance slim speaker according to the present invention for achieving the above object, the plate and the external magnetic body are divided into n (where n is a natural number of 2 or more), and the supporter is supported on the outer surface of the voice coil and divided into n. A body portion extending outward to the side into a space between the outer magnetic body and the plate, coupled to an outer end of the supporter portion, an inner edge portion extending inwardly and coupled to a guide, and extending outward of the body portion A vibration plate mounted to be vibrated vertically, including an outer edge portion coupled to the upper frame portion; And a damper part coupling between the supporter part and the upper frame part.

Here, the speaker includes a lower assembly unit and the upper assembly, and the lower assembly unit includes: a lower frame unit covering a lower portion of the speaker and having an opening in a vertical direction; A yoke positioned on the lower frame portion and covering an opening of the lower frame portion; An internal magnetic body positioned on the yoke; A pole piece positioned on the inner magnetic body; An external magnetic body positioned on the yoke and disposed adjacently along a lateral circumference of the internal magnetic body, but divided into n pieces; And a plate positioned on the outer magnetic body, but disposed adjacently along the lateral circumference of the pole piece and divided into n pieces.

In addition, the upper assembly portion, an upper frame portion covering an upper portion of the speaker and having an opening in a vertical direction; A cover covering the upper frame portion; A guide coupled to the lower portion of the cover; A bobbin surrounding the inner magnetic body and inserted between the inner magnetic body and the external magnetic body; A voice coil wound on the bobbin and vibrating the bobbin up and down according to an electric signal applied; A supporter part supporting the voice coil on an outer surface and extending to the outside side by a space between the external magnetic body divided into n pieces and the plate; Including a body portion coupled to the outer end of the supporter portion, an inner edge portion extending inwardly of the body portion and coupled to the guide, and an outer edge portion extending outside the body portion and coupled to the upper frame portion, A vibration plate mounted so as to be vibrated; And a damper part coupling between the supporter part and the upper frame part.

In addition, when the plate and the external magnetic body are divided into n pieces, it is preferable that the plate and the external magnetic material are uniformly divided at the same angle in the outer peripheral direction.

In addition, the supporter unit includes the n number of inner extensions extending to the outside of the side surface for each space between the plate and the external magnetic body divided into n, but supporting the outer surface of the voice coil at an inner end thereof; And a circular portion having a circular shape and connecting the n internal extension portions to each other.

In addition, in order to stably support the outer surface of the voice coil, the supporter part preferably has an inner end of the inner extension having a relatively larger area than that of the extended portion of the inner extension.

In addition, it is preferable that the damper part is made of the n dampers coupling between the supporter part and the upper frame part, and is formed in an outer circumferential direction between the extension directions of the n inner extension parts of the supporter part.

Here, it is preferable that n is 2 or 3 or 4.

According to the high-performance slim speaker according to the present invention,

First, the plate and the external magnetic body are divided into n (where n is a natural number of 2 or more), and the supporter part is supported on the outer surface of the voice coil, and the supporter extends outside the side by the space between the external magnetic body and the plate divided by n. Including a body portion coupled to the outer end of the portion, an inner edge portion extending inward of the body portion and coupled to the guide, and an outer edge portion extending outward of the body portion and coupled to the upper frame portion, which is mounted so as to be vibrated vertically. By moving all of the vibration plate and the damper unit coupling between the supporter unit and the upper frame unit to the outside of the magnetic field unit, a slimmer structure can be implemented.

Second, it is possible to maximize the range of motion of the upper and lower amplitudes of the voice coil within a slim structure, and because a slim structure is possible, it is possible to use a magnetic material thicker than the conventional one. And it is possible to improve the sound quality.

Third, in recent years, a slim speaker is often required in a display having a slim configuration. According to the present invention, even when implemented in a slim flat-screen TV, performance is not degraded.

1 is a side cross-sectional view showing the configuration of a speaker according to the prior art.
2 is an exploded perspective view showing the configuration of a high-performance slim speaker according to a preferred embodiment of the present invention.
3 is a perspective view as viewed from the upper side of a high-performance slim speaker according to a preferred embodiment of the present invention.
4 is a perspective view as viewed from a lower side of a high-performance slim speaker according to a preferred embodiment of the present invention.
5 is a view showing in detail the configuration in which the vibration plate and the damper part are both moved to the outside of the magnetic field part to be slimmed in the high-performance slim speaker according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

Figure 2 is an exploded perspective view showing the configuration of a high-performance slim speaker according to a preferred embodiment of the present invention, Figure 3 is a perspective view as viewed from the upper side of the high-performance slim speaker according to a preferred embodiment of the present invention, Figure 4 is of the present invention A perspective view as viewed from the lower side of a high-performance slim speaker according to a preferred embodiment, and FIG. 5 is a detailed diagram showing a configuration in which both the vibration plate and the damper part are moved to the outside of the magnetic field part in the high-performance slim speaker according to the preferred embodiment of the present invention. to be.

2 to 5, the high-performance slim speaker 200 according to a preferred embodiment of the present invention is configured to include an upper assembly unit 300 and a lower assembly unit 400, in an external amplifier It receives the output electrical signal and converts it into an acoustic signal through physical vibration.

First, the lower assembly part 400 includes a pole piece 410, an internal magnetic body 420, a plate 430, an external magnetic body 440, a yoke 450, and a lower frame part 460. do.

As shown in FIG. 2, the lower frame portion 460 covers the lower portion of the high-performance slim speaker 200 but has a circular opening in the vertical direction. The lower frame part 460 together with the upper frame part 320 forms a space for accommodating various components of the high-performance slim speaker 200 therein. The yoke 450 is located on the lower frame part 460 and covers the opening of the lower frame part 460, and together with the inner magnetic body 420 and the external magnetic body 44, a magnetic path that draws a magnetic flux from a magnetic circuit ( It plays a role.

The inner magnetic body 420 is positioned on the above-described yoke 450 and has a cylindrical shape, and the pole piece 410 is positioned on the inner magnetic body 420. Here, the circular shape is an example, and may be various shapes such as a square, a track shape, or an oval. The outer magnetic body 440 is located on the yoke 450 and is disposed adjacently along the lateral circumference of the inner magnetic body 420 and is divided into n pieces. When the external magnetic body 440 is divided into n pieces, it is preferable that the external magnetic body 440 be uniformly divided at the same angle in the outer circumferential direction. The shape of the external magnetic body 440 may also have various shapes such as a circular shape, a square shape, a track shape, or an oval shape, like the shape of the internal magnetic body 420.

Next, the plate 430 is located above the external magnetic body 440 but is disposed close along the lateral circumference of the pole piece 410 and is divided into n pieces like the external magnetic body 440. When the plate is divided into n pieces, it is preferable that the plates are uniformly divided at the same angle in the outer circumferential direction. For example, n divisions may be divided into two, three, and four at a uniform angle in the outer circumferential direction. It can be divided into several as needed.

In the above description, of course, when the plate 430 and the external magnetic body 440 are divided into n pieces, design changes or modifications may be made if they can have the necessary optimum magnetic flux density even if they are not uniform or at the same angle.

The above-described internal magnetic body 420 and external magnetic body 440 are members that supply DC magnetic flux necessary for vertically vibrating the bobbin 350 to be described later.

Next, the upper assembly part 300, the cover 310, the upper frame part 320, the guide 330, the vibration plate 340, the bobbin 350, the voice coil 360, the supporter part 370, And a damper part 380.

Here, the upper frame part 320 covers the upper part of the high-performance slim speaker 200 but has a circular opening in the vertical direction. The circular opening is an example, and the shape of the circular opening of the upper frame part 320 may be a rectangular opening, a track-shaped opening, or an elliptical opening. The cover 320 has a structure that covers the upper frame part 320 to protect the internal structure.

In addition, the bobbin 350 surrounds the internal magnetic body 420 and is inserted between the internal magnetic body 420 and the external magnetic body 440, and the voice coil 360 is wound around the above-described bobbin 350 to It is a configuration in which the bobbin 350 vibrates up and down according to an electric signal applied from. When an electric signal representing an audio signal is passed to the coil wound in the magnetic gap, a driving force is generated, which acts as a vibration source for the speaker. The material of the winding may be a natural copper wire or aluminum wire.

Next, the supporter unit 370 is a configuration that supports the voice coil 360 from the outer surface and extends to the outer side (outer peripheral direction) in the space between the external magnetic body 440 and the plate 430 divided into n. . The supporter unit 370 extends to the outside of the side for each space between the plate 430 and the external magnetic body 440 divided into n, but at the inner end, n internal extensions supporting the outer surface of the voice coil 360 and n It is preferable to include a circular portion having a circular shape and connecting the internal extensions of the dogs to each other.

In addition, in order to stably support the outer surface of the voice coil 360, the supporter unit 370 has an inner end of the inner extension having a relatively larger area (for example, a larger diameter than the extending portion of the inner extension). And the like). Here, the supporter unit 370 may be processed by injection molding or the like.

In addition, the diaphragm (or cone paper, cone paper) 340 is a diaphragm having a configuration in which the up-and-down vibrations of the voice coil 360 and the bobbin 350 are transmitted through the supporter unit 370 and are mounted so as to be vibrated up and down. The diaphragm 340 is formed of paper or a special material, so that it is possible to further improve the reproduction sound quality.

The vibration plate 340 includes a body portion, an inner edge portion, and an outer edge portion. Here, the body portion is coupled to the outer end of the supporter portion 370, the inner edge portion is coupled to the guide 330 coupled to the lower portion of the cover 310 extending into the body portion, the outer edge portion to the outside of the body portion It is extended and combined with the upper frame part 320.

In addition, the damper unit 380 is configured to couple between the supporter unit 370 and the upper frame unit 320. The damper part 380 is preferably made of n dampers that couple between the supporter part 370 and the upper frame part 320. It does not coincide with the extension direction of the n internal extensions of the supporter unit 370, and is preferably formed in the outer circumferential direction for each interval therebetween.

In addition, the damper 380 may have a structure in which a groove shape curved vertically while going from the outside to the inside is repeated, and may be formed in a flat plate shape depending on the material. In addition, rubbers, urethanes, plastics, etc. may be used in addition to the damper materials used for ordinary speakers, and other metal materials may be used.

In addition, when the damper 380 is formed of a metal material such as copper or aluminum, it can provide conductivity as well, so that the outer end of the damper 380 is exposed to the outside of the frame unit and has a terminal function to receive electrical signals from the outside. I can.

Here, it is preferable that n is 2 or 3 or 4. As described above, the number of n can be modified or changed as necessary.

Through the above-described configuration, that is, in the present invention, the vibration plate that is mounted so as to be vibrated vertically and the damper part coupling between the supporter part and the upper frame part are all moved to the outside of the magnetic field part, that is, a large space represented by A in FIG. Even though it has a single structure, it can maximize the range of motion of the upper and lower amplitudes of the voice coil.

Through this configuration, a slim structure is possible, and it is possible to use a magnetic material thicker than the conventional one. Despite being slim, performance is further improved to obtain high output, and a high-performance slim speaker capable of improving sound quality is provided. Can provide.

As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit and the following by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equal range of the claims to be described.

200... high performance slim speaker
300... upper assembly part
310...cover
320... upper frame part
330...guide
340... diaphragm
350...bobbin
360...voice coil
370...Supporter
380...damper part
400... lower assembly
410...pole piece
420...internal magnetic body
430...plate
440... external magnetism
450... York
460... lower frame part

Claims (8)

In a high-performance slim speaker,
The plate and the external magnetic body are divided into n (where n is a natural number of 2 or more), and a supporter part is supported on the outer surface of the voice coil and extends outside the side by the space between the external magnetic body and the plate divided into n,
Vibrating up and down, including a body portion coupled to an outer end of the supporter portion, an inner edge portion extending inwardly and coupled with a guide, and an outer edge portion extending outwardly and coupled to the upper frame portion of the body portion A diaphragm mounted to be possible; And a damper part coupling between the supporter part and the upper frame part,
The high-performance slim speaker includes a lower assembly unit and an upper assembly unit,
The lower assembly portion may include a lower frame portion covering a lower portion of the speaker and having an opening in a vertical direction; A yoke positioned on the lower frame portion and covering an opening of the lower frame portion; An internal magnetic body positioned on the yoke; A pole piece positioned on the inner magnetic body; An external magnetic body positioned on the yoke and disposed adjacently along a lateral circumference of the internal magnetic body, but divided into n pieces; And a plate positioned above the external magnetic body and disposed adjacently along the lateral circumference of the pole piece and divided into the n pieces,
The upper assembly portion may include an upper frame portion covering an upper portion of the speaker and having an opening in a vertical direction; A cover covering the upper frame portion; A guide coupled to the lower portion of the cover; A bobbin surrounding the inner magnetic body and inserted between the inner magnetic body and the outer magnetic body; A voice coil wound on the bobbin and vibrating the bobbin up and down according to an electric signal applied; A supporter part supporting the voice coil on an outer surface and extending to the outside side by a space between the outer magnetic body divided into n pieces and the plate; Including a body portion coupled to the outer end of the supporter portion, an inner edge portion extending inwardly of the body portion and coupled to the guide, and an outer edge portion extending outside the body portion and coupled to the upper frame portion, A vibration plate mounted so as to be vibrated; And a damper part coupling between the supporter part and the upper frame part,
When the plate and the external magnetic body are divided into the n pieces, they are uniformly divided in the outer circumferential direction,
The supporter may include: the n internal extensions extending to the outside of the side surface for each space between the plate and the external magnetic body divided into n portions, and supporting an outer surface of the voice coil at an inner end thereof; And a circular portion connecting the n internal extension portions to each other and having a circular shape;
The supporter part, in order to stably support the outer surface of the voice coil, the inner end of the inner extension is formed to have a relatively larger area than the extending portion of the inner extension,
The damper part, consisting of the n dampers coupling between the supporter part and the upper frame part, characterized in that formed in the outer circumferential direction between the extension directions of the n inner extensions of the supporter part,
High performance slim speaker.
delete delete delete delete delete delete The method of claim 1,
Wherein n is 2 or 3 or 4,
High performance slim speaker.

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