KR101870608B1

KR101870608B1 - Slim type speaker

Info

Publication number: KR101870608B1
Application number: KR1020170088365A
Authority: KR
Inventors: 노유현
Original assignee: 범진시엔엘 주식회사
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2018-06-25

Abstract

The present invention relates to a slim type speaker having a damper on an upper portion of a voice coil so that the damper can be assembled and installed easily, while the voice coil has a size relatively larger than a size of a frame, thereby increasing an acoustic output. The slim type speaker includes: a frame having upper and lower portions to be opened; a yoke attached to a lower surface of the frame and having an upper portion being opened; a magnet installed inside the yoke; a plate attached to an upper surface of the magnet; a voice coil disposed inside the frame to surround the plate and an upper portion of the magnet; an upper attachment member attached to an upper surface of the voice coil; a damper having an inner end attached along an outer surface of the upper attachment member and an outer end attached to an inner surface of the frame; a vibration plate having a lower end attached to the upper attachment member so as to close the opened upper portion of the frame; and an edge attached along the upper surface of the frame and an upper end of the vibration plate.

Description

SLIM TYPE SPEAKER

The present invention relates to a slim type speaker, and more particularly, to a slim type speaker, which includes a damper on an upper portion of a voice coil so as to simplify assembly and installation of a damper and increase a voice coil The present invention relates to a slim type speaker.

In general, a speaker is a sound apparatus that emits a sound wave by converting an electric signal into vibration of a diaphragm to generate a small-sized wave in the air.

Recently, a large-scale display device such as an LCD TV, a PDP TV, and an LCD monitor has been slimmed down. A slim type speaker is required to output a high quality sound signal without adversely affecting the appearance of the display device due to the thinness of the display device due to the enlargement and slimness of the display device.

Such a slim type speaker for a display device is produced in large quantities in accordance with mass production of a display device. Thus, in the field of the art, there is a demand for shortening the production time of the speaker, and improving the assemblability and the productivity.

9 to 11 are schematic views of a conventional speaker, and a configuration of a conventional slim type speaker will be described as follows. The conventional slim speaker includes a body frame 10, a plate 20 attached to a lower surface of the body frame 10, a magnet 30 attached to a lower surface of the plate 20, A yoke 40 attached to the lower surface of the magnet 30, a damper 50 attached to the inside of the body frame 10, a voice coil 60 attached to the damper 50, An edge 70 attached to an upper end of the main body frame 10 and a cone paper 80 attached to the edge 70 and the voice coil 60.

The damper 50 has an outer end attached to an inner bottom surface of the main body frame 10 around the upper end of the coupling hole 11 so that the voice coil 60 is vertically So that the voice coil 60 can be vertically moved from the inside of the main body frame 10 to the main body frame 10.

The voice coil 60 is formed in an elliptical shape and is attached to the inner end of the damper 50 so as to surround the upper portion of the protrusion 41 through the plate 20 and the upper portion of the magnet 30, And serves to generate an up-down vibration power by interacting with the magnet (30) while forming a magnetic field by being electromagnet by supply of a +/- power supply.

However, the above-described conventional techniques have the following problems.

In the conventional slim type speaker, the upper end of the damper is attached to the outer surface of the voice coil, and the lower end of the damper is attached to the inner bottom surface of the frame, and a pair of dampers are provided on the inner lower surface of the frame. Is relatively complicated, inconvenient, and requires a lot of time and manpower.

In addition, since the damper is provided on the outer surface of the voice coil as described above, the size of the voice coil is relatively limited, thereby limiting the size of the acoustic output.

Registered Patent No. 1318235 "Slim type speaker and its assembling method" (October 20, 2013).

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

SUMMARY OF THE INVENTION It is an object of the present invention to provide a slim type speaker in which a damper is provided on an upper portion of a voice coil so that a damper can be easily assembled and installed and a voice coil is relatively increased compared to a size of a frame,

In order to achieve the above object, a "slim speaker" according to the present invention includes: a frame having upper and lower openings; A yoke attached to the lower surface of the frame and having an open top; A magnet disposed inside the yoke; A plate attached to an upper surface of the magnet; A voice coil disposed inside the frame so as to surround the plate and an upper portion of the magnet; A top surface attachment member attached to an upper surface of the voice coil; A damper to which an inner end is attached along an outer periphery of the top surface attachment member and an outer end is attached to an inner surface of the frame; A diaphragm whose lower end is attached to the upper surface attachment member so as to close the open top of the frame; An edge attached along the top of the frame and the top of the diaphragm; .

The upper surface attachment member of the "slim type speaker" according to the present invention further includes a fitting protrusion protruded downward from an outer periphery of the upper surface attachment member such that an upper end of the voice coil is fitted inside .

The upper surface attachment member of the "slim-type speaker" according to the present invention has a stepped portion formed to be flat and attached to the damper with its width becoming narrower toward the upper portion, Wherein the diaphragm further comprises an insertion hole formed at the center of the lower surface of the diaphragm so that the center protrusion is inserted.

The upper surface attachment member of the "slim-type speaker" according to the present invention has a step formed to be flat so that the damper becomes narrower as its width becomes narrower toward the upper part, And a curved surface closing portion formed in the center of the lower surface of the diaphragm so that the diaphragm is closed while the protruding aperture is inserted.

The top surface attachment member of the "slim type speaker" according to the present invention further includes a flat surface portion that is attached to the top surface of the voice coil and is formed flat to adhere the damper.

The upper surface attachment member of the "slim type speaker" according to the present invention is formed by projecting the upper surface of the voice coil with a lower end while being convexly inclined to the upper side, The diaphragm further includes an insertion hole formed at the center of the lower surface of the diaphragm so that the upper end of the diagonal projection is inserted.

According to the present invention as described above, since the damper is provided on the voice coil, the damper can be easily assembled and installed, the voice coil is relatively larger than the size of the frame, the acoustic output is increased, So that the slimness of the speaker itself is improved.

1 is a schematic perspective view of a slim type speaker according to a first embodiment of the present invention,
2 is a schematic exploded perspective view of a slim type speaker according to a first embodiment of the present invention,
Fig. 3 is an enlarged view of the main part of Fig. 2,
4 is a schematic front sectional view of a slim type speaker according to a first embodiment of the present invention,
5 is a schematic vertical sectional view of a slim type speaker according to the first embodiment of the present invention,
6 is a schematic vertical cross-sectional view of a slim type speaker according to a second embodiment of the present invention,
7 is a schematic vertical cross-sectional view of a slim type speaker according to a third embodiment of the present invention,
8 is a schematic vertical cross-sectional view of a slim type speaker according to a fourth embodiment of the present invention,
9 is a schematic exploded perspective view of a conventional speaker,
10 is a schematic perspective view of a conventional speaker,
11 is a schematic front cross-sectional view of a conventional speaker.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 to 5 are schematic views of a slim type speaker according to a first embodiment of the present invention. As shown, the slim speaker according to the first embodiment of the present invention includes a frame 100, a yoke 200 attached to the inside of the frame 100, A magnet 300 and a plate 400 attached to the upper surface of the magnet 300. The voice coil 500 is provided around the magnet 300 and the voice coil 500 is attached to the upper surface of the voice coil 500. [ A damper 700 attached between the upper surface attachment member 600 and the frame 100; an edge 900 attached to the upper end of the frame 100; And a diaphragm 800 attached between the top surface attachment member 900 and the top surface attachment member 600.

The frame 100 is formed in the shape of a hollow cube in which upper and lower portions are opened. The edge 900 is attached to the upper surface of the frame 100 to provide a space in which the diaphragm 800 is installed, The voice coil 500, the damper 700, and the like can be easily installed.

The yoke 200 is attached to a lower surface of the frame 100 and is open at an upper portion thereof and functions to receive the magnet 300 and the plate 400.

The magnet 300 is installed inside the yoke 200 and generates magnetic force such as attractive force or repulsive force corresponding to the magnetic field generated in the voice coil 500 so that the voice coil 500 vibrates up and down To be able to do so.

The plate 400 is attached to the upper surface of the magnet 300 and collects the magnetic force of the magnet 300 in a vertical direction. The plate 400 may be formed by stacking two plates as shown in FIG.

The voice coil 500 is provided inside the frame 100 so as to surround the plate 400 and the upper portion of the magnet 300 and has a coil wound around a cylindrical bobbin. And generates a magnetic force by interacting with the magnet 300 while generating a magnetic force.

The top surface attachment member 600 is attached to the top surface of the voice coil 500 and serves to provide a place where the damper 700 and the diaphragm 800 are attached. Since the damper 700 is attached to the upper portion of the voice coil 500 by the top surface attachment member 600 as described above, the size limitation of the voice coil 500 by the damper 700 is originally prevented The voice coil 500 having a relatively large size can be installed inside the frame 100, thereby significantly improving the output of the speaker.

The top surface attachment member 600 further includes a fitting protrusion 601 formed to protrude downward from an outer periphery thereof. The fitting jaw 601 is formed by assembling the upper surface attachment member 600 with respect to the voice coil 500 so that the outer periphery of the upper surface attachment member 600 is easily fitted to the inner side of the upper end of the voice coil 500 And the installation is simple and stable.

The top surface attachment member 600 has a step 602 that is formed to be flat and attached to the damper 700 with a width becoming narrower toward the upper part and a center 602 which protrudes toward the upper side in the center toward the inside of the step 602, And further includes a protrusion 603.

The damper 700 can be easily attached to the upper portion of the voice coil 500 while the width of the damper 700 can be maximized. The center protrusion 603 is inserted into the diaphragm 800 and is integrally formed with the step 602 while supporting the step 602 so that the diaphragm 800 can be easily attached.

The damper 700 has an inner end attached to the outer surface of the upper surface attachment member 600 and an outer end attached to the inner surface of the frame 100 to support the voice coil 500 in a vertical direction .

The damper 700 is provided on the upper portion of the voice coil 500 to support the voice coil 500 so that the damper 700 is not provided on the outer surface of the voice coil 500 The horizontal width of the voice coil 500 becomes relatively large, so that the acoustic output can be increased.

The diaphragm 800 is attached to the lower end of the edge 900 so as to close the opened upper portion of the frame 100 and has a lower end attached to the upper surface attachment member 600, And is connected to the voice coil 500 to vibrate according to the up-and-down vibration of the voice coil 500 to output sound to the outside.

The diaphragm 800 may further include an insertion hole 801 formed at the center of the lower surface of the diaphragm 800 to insert the middle protrusion 603. The insertion hole 801 serves to provide a place where the central protrusion 603 is inserted into the upper side.

The edge 900 is attached along the upper surface of the frame 100 and supports the diaphragm 800 corresponding to the frame 100.

6 is a schematic vertical sectional view of a slim type speaker according to a second embodiment of the present invention. As shown in the figure, the top surface attachment member 600 of the slim type speaker according to the second embodiment of the present invention has a step 602 formed to be flat and attached with the damper 700 as its width becomes narrower toward the upper part, And a protruding hole 604 protruding upward from the center of the step 602 so as to be vertically penetrated.

The damper 700 can be easily attached to the upper portion of the voice coil 500 while the width of the damper 700 can be maximized. The projecting through hole 604 can be easily attached to the inside of the diaphragm 800 in a state where the upper end is fitted.

The diaphragm 800 further includes a curved surface closing part 802 formed at a bottom center of the diaphragm 800 to be rounded. The curved surface closing portion 802 closes the protrusion hole 604 while providing a place where the protrusion hole 604 is inserted and attached.

7 is a schematic longitudinal sectional view of a slim type speaker according to a third embodiment of the present invention. As shown in the figure, the top surface attachment member 600 of the slim speaker according to the third embodiment of the present invention is mounted on the top surface of the voice coil 500, 605 < / RTI >

The flat portion 605 is formed flat on the upper surface of the voice coil 500 and serves to provide a place where the damper 700 and the lower end of the diaphragm 800 are stacked and attached. That is, the flat portion 605 allows the damper 700 and the diaphragm 800 to be attached more easily.

8 is a schematic vertical sectional view of a slim type speaker according to a fourth embodiment of the present invention. As shown in the figure, the top surface attachment member 600 of the slim type speaker according to the fourth embodiment of the present invention is formed such that the lower end thereof is attached to the upper surface of the voice coil 500, And an inclined protrusion 606 to which the damper 700 is attached on the outer surface.

The damper 700 can be easily attached to the upper portion of the voice coil 500 while the slope protrusion 606 can be easily attached to the upper portion of the voice coil 500 so that the width of the damper 700 can be maximized And a protruding portion at the center is inserted into the diaphragm 800 so that the diaphragm 800 can be easily attached.

The diaphragm 800 further includes an insertion hole 801 formed at the bottom center of the diaphragm 800 so that the upper end of the diagonal projection 606 is inserted. The insertion hole 801 serves to provide a place where the slant projection 606 is inserted in the upper side.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

100: frame
200: York
300: Magnet
400: plate
500: Voice coil
600: upper surface attachment member
601: Insertion chin 602:
603: central protrusion 604: protrusion hole
605: flat portion 606: inclined projection
700: damper
800: diaphragm
801: insertion hole 802: curved surface closing part
900: Edge

Claims

A frame 100 having upper and lower openings;
A yoke 200 attached to a lower surface of the frame 100 and having an open top;
A magnet 300 installed inside the yoke 200;
A plate 400 attached to an upper surface of the magnet 300;
A voice coil 500 disposed inside the frame 100 to surround the plate 400 and the upper portion of the magnet 300;
A top surface attachment member 600 attached to an upper surface of the voice coil 500;
A damper 700 having an inner end attached to an outer surface of the top surface attachment member 600 and an outer end attached to an inner surface of the frame 100;
A vibration plate 800 having a lower end attached to the upper surface attachment member 600 to close an opened upper portion of the frame 100;
An edge 900 attached along an upper surface of the frame 100 and an upper end of the diaphragm 800; Including,
The top surface attachment member (600)
A step 602 formed to be flat and attached to the damper 700 with its width becoming narrower toward the upper part,
Further comprising a central protrusion (603) protruding from the center of the step (602) toward the upper side,
The diaphragm (800)
Further comprising an insertion hole (801) formed at the center of a lower surface of the diaphragm (800) to insert the center protrusion (603).

The method according to claim 1,
The top surface attachment member (600)
A fitting jaw 601 protruding downward from an outer periphery of the top surface attachment member 600 so that an upper end of the voice coil 500 is fitted inside,
Wherein the speaker further comprises a speaker.

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A frame 100 having upper and lower openings;
A yoke 200 attached to a lower surface of the frame 100 and having an open top;
A magnet 300 installed inside the yoke 200;
A plate 400 attached to an upper surface of the magnet 300;
A voice coil 500 disposed inside the frame 100 to surround the plate 400 and the upper portion of the magnet 300;
A top surface attachment member 600 attached to an upper surface of the voice coil 500;
A damper 700 having an inner end attached to an outer surface of the top surface attachment member 600 and an outer end attached to an inner surface of the frame 100;
A vibration plate 800 having a lower end attached to the upper surface attachment member 600 to close an opened upper portion of the frame 100;
An edge 900 attached along an upper surface of the frame 100 and an upper end of the diaphragm 800; Including,
The top surface attachment member (600)
A step 602 formed to be flat and attached to the damper 700 with its width becoming narrower toward the upper part,
And a protruding through hole (604) protruding upwardly from the center in the step (602) so as to penetrate up and down,
The diaphragm (800)
Further comprising a curved surface closing portion (802) formed to be rounded at a bottom center of the diaphragm (800) so that the protruding through hole (604) is inserted and closed.

5. The method of claim 4,
The top surface attachment member (600)
A planar portion 605, which is attached to the upper surface of the voice coil 500 and is formed so as to be attached to the damper 700,
Wherein the speaker further comprises a speaker.

A frame 100 having upper and lower openings;
A yoke 200 attached to a lower surface of the frame 100 and having an open top;
A magnet 300 installed inside the yoke 200;
A plate 400 attached to an upper surface of the magnet 300;
A voice coil 500 disposed inside the frame 100 to surround the plate 400 and the upper portion of the magnet 300;
A top surface attachment member 600 attached to an upper surface of the voice coil 500;
A damper 700 having an inner end attached to an outer surface of the top surface attachment member 600 and an outer end attached to an inner surface of the frame 100;
A vibration plate 800 having a lower end attached to the upper surface attachment member 600 to close an opened upper portion of the frame 100;
An edge 900 attached along an upper surface of the frame 100 and an upper end of the diaphragm 800; Including,
The top surface attachment member (600)
And a slant projection 606 formed on the upper surface of the voice coil 500 so as to protrude from the upper side in a convexly inclined state and to attach the damper 700 to an outer surface thereof,
The diaphragm (800)
Further comprising an insertion hole (801) formed at the center of the lower surface of the diaphragm (800) so that an upper end of the inclined projection (606) is inserted.