KR20160118671A

KR20160118671A - The Speaker unit is equipped with a slimmer the box

Info

Publication number: KR20160118671A
Application number: KR1020150047109A
Authority: KR
Inventors: 염강문
Original assignee: 주식회사 한국토프톤
Priority date: 2015-04-02
Filing date: 2015-04-02
Publication date: 2016-10-12
Also published as: KR101682699B1

Abstract

The present invention relates to a box with a speaker unit which is slimmed to be installed in a slimmed TV or the like. Especially, the present invention is to stably maintain output characteristics (sound pressure) not to reduce an area of a magnet while promoting a box with a speaker unit to be slimmed according to TV slimming.

Description

[0001] The present invention relates to a speaker unit having a slimmer box,

The present invention relates to a box equipped with a speaker unit that is slim and can be mounted on a slim TV or the like. More particularly, the present invention relates to a box having a speaker unit that is slim, So that the output characteristic (sound pressure) is maintained.

Currently, the slimmer speaker mounted on a TV is one of the phenomena according to the trend of slimming down the appliances. In this case, the biggest problem is that the size of the magnet is reduced and the performance of the speaker is deteriorated.

In recent years, in order to maintain the output characteristics (the concept of preventing the sound pressure decrease) while reducing the size of the speaker unit, the magnet is tried to be exposed in the frame of the speaker unit. In this case, The space is minimized according to the slimness, thereby causing a problem due to close contact between the box and the magnet.

In addition, securing the minimum space has a problem in that it is in close contact with the box as described above, as well as a problem in that various components constituting the speaker unit are damaged due to such heat because the magnet is tightly adhered to the box, The change in output characteristics will, of course, cause failure.

In this patent application, a magnet is exposed at the lower end of the frame of the speaker unit, and the magnet is exposed to the recess, so that the heat dissipation can be made smooth and slim, and the size of the magnet can not be reduced It is possible to do.

However, a problem with this configuration is that the assembly structure of such a magnet is such that a top plate and a bottom plate are positioned above and below a magnet, and a voice coil is vibrated between the top plate and the magnet It is difficult to assemble the magnet or the like in a predetermined shape in such a depression, and it is difficult to provide a uniformly assembled product at all times.

In addition, due to the exposure of the magnet or the like, foreign substances are caught in the state of being mounted on the bath, causing another problem.

In addition, due to the thickness of the plastic case constituting the box to be slimmed when the box is inserted into the box due to the exposure of the magnet or the like, the magnet of the exposed speaker unit is closely contacted with the plastic case constituting the box Since the output characteristic of the speaker is not changed due to the vibration noise during the operation, the outer surface of the magnet is exposed to a certain distance from the inner surface of the plastic case. The size of the magnet is reduced and the box becomes slim.

Therefore, when the box is made to have a slim structure having a constant width due to the slimming of electric appliances and the like, it is impossible to maintain the output characteristics due to the reduction of the magnets, and also causes many problems due to foreign substances due to the exposed magnets. It causes many problems in maintaining the uniformity in the assembling process when assembling to the depressed portion.

Published Patent Publication No. 10-2014-0014638 Patent Registration No. 10-1394905

Therefore, in the present invention, it is required that the magnet is not required to secure space when engaging with the case constituting the box, the magnet is assembled easily, the uniform product is always provided, and the heat radiation function is also excellent.

For this purpose, a magnet unit composed of a top plate and a bottom plate is formed by injection-molding a frame of a speaker unit at the top and bottom of a magnet to form and cover the cover surface. The box in which the speaker unit is inserted and formed is formed with an opening so that the cover surface is exposed at the opening of the box so that the area of the magnet can be maintained as it is,

In addition, the magnet unit is insert injection-molded integrally with a frame of a speaker unit by an insert injection molding technique to have a cover surface and to eliminate a separate assembly process.

In addition, it is required to implement a fixing means for preventing unintentional departure of the insert during injection molding.

In addition, when the magnet portion is covered by the cover surface, a through hole is formed in the cover surface for heat dissipation.

In addition, it is designed to improve the assembly structure of the box and the speaker unit due to the tightness of the appearance and the slimness of the mounted TV.

Therefore, it is possible to form the cover portion on the frame of the speaker unit through which the magnet portion is injection-molded so that the magnet portion can be retained roundly by the opening portion formed in the box when assembled to the box. It is possible to improve the uniformity and the productivity by eliminating the separate assembly process of the magnet part by performing insert injection molding.

In addition, even when the magnet portion is sealed by inserting injection molding due to the cover surface, the through hole is formed for heat dissipation, so that the heat dissipation is excellent, and insert injection molding is also excellent by the through hole.

In addition, it is possible to prevent the deformation of other magnets due to the temperature change by implementing fixing means in order to secure the possibility of separation from the shrinking expansion of the plastic during insert injection molding.

1 is an assembled perspective view of a speaker unit assembled in a slim box of the present invention.
2 is a sectional view of the speaker unit assembled in the slim box of the present invention.
3 is a cross-sectional view of the assembled state of FIG. 2;
Fig. 4 is a sectional view showing an assembled state in the assembled state of Fig. 2; Fig.
Figure 5 is a cross-sectional view of the assembled state of Figure 4
6 is an exploded cross-sectional view of the speaker unit of the present invention
6A is a sectional view of the speaker unit of the present invention assembled;
7 is a perspective view of the insert injection state of the present invention.
8 is a cross-sectional view of Fig.
9 and 10 are assembled state views of a speaker unit according to the present invention.
11 is a perspective view of still another insert injection state of the present invention.
12 is a cross-sectional view of a state in which a conventional speaker unit with a magnet portion in an exposed state is built in a box.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, the structure of the present invention includes a diaphragm 130 positioned above the frame 110 of the speaker unit 10 and connected to the edge 120, A damper 140 which is located on the lower side and is connected to the normal frame and to which the bobbin 160 on which the voice coil 150 is wound is fixed and a voice coil 150 is located on the lower side of the damper 140, And a bottom plate 174 provided with a top plate 172 and a pole piece 173 at the top and bottom of a magnet 171 to be secured to the magnet 171, The speaker unit 10 including the speaker unit 170 and the box 20 accommodated while the speaker unit 10 is exposed only the diaphragm 130 may include a magnet unit 170 of the speaker unit 10, When the frame 110 is formed by plastic, The magnet unit 170 is formed on the cover surface 11 so that the magnet unit 170 can be covered and the magnet unit 170 is formed on the portion where the cover surface 11 is formed. The opening 20 is formed in the box 20 so that the cover surface 11 is exposed when the cover 10 is assembled to the box 20.

Therefore, when the speaker unit 10 is inserted into the inner space of the box 20 as shown in FIG. 1A, an unnecessary space is not formed, so that the volume of the magnet 171 is not reduced.

6, 9 and 10 illustrate a structure in which a magnet portion and a diaphragm are assembled in a state that a cover surface is formed on a frame of the speaker unit of the present invention, and a speaker unit 10 is configured to have a cover surface 11 A portion where the damper is placed and a portion where the edge of the vibration plate is placed and a portion where the input terminal is joined are formed by one frame 110 when the frame 110 is formed, So that the surface 11 can be formed integrally with the frame 110 by injection molding.

At this time, a receiving frame 111 is formed at a portion where the damper of the frame 110 is placed, so that the damper is laid on the rear surface of the frame 110, 112), the fixing of the position of the top plate and the assembling process of the magnet are sufficient

In addition, since the engaging jaws 113 are formed to fix the magnets, the accuracy and uniformity of assembling can be maintained.

7 and 8 show a structure in which the magnet portion is integrally injection-molded by the cover surface formed on the frame of the speaker unit, and the cover surface is structured to completely cover the bottom plate forming the magnet portion.

Therefore, in order to dissipate the heat generated from the magnet in such a case, a through hole for ventilation is formed on the cover surface for covering the magnet portion, and a plurality of such holes can be realized.

FIG. 11 is a perspective view of the bottom plate of FIG. 11 in order to prevent the bottom plate from being disengaged by an impact or the like in a state in which the cover plate is formed on the frame constituting the speaker unit, So that it is possible to prevent any deviation.

Such a connection support portion is extended from the inner wall in consideration of the fact that the connection support portion is mounted on the opening portion of the box.

The connection support part is formed to be spaced apart by a predetermined distance so as to have excellent air permeability.

At this time, the through hole is formed in the cover surface, so that heat dissipation of heat generated from the magnet of the magnet portion is excellent.

Molded integrally with the frame 110 of the speaker unit by insert injection molding so that the cover surface 11 is formed and exposed to the outside.

Therefore, the overall width of the case constituting the box 20 is equal to the overall width of the speaker unit 10 having the cover surface 11. The speaker unit 10 having the cover surface 11 does not protrude more than the outer wall surface 22 of the box 20 when the speaker unit 10 is mounted on the opening 21 formed in the box 20.

Even if the thickness of the cover surface 11 of the speaker unit is made equal to the thickness of the outer wall surface 22 of the box 20 formed with the opening 21, So that it is possible to use the magnet for forming the magnet part 170 with the maximum capacity, and the sound generated due to the close contact with the conventional case 21, In addition, since the capacity of the magnet is larger than that of the conventional magnet, the sound pressure is also excellent.

In addition, when the magnet portion is integrally formed by injection molding so that the magnet portion is assembled to the frame having the cover surface or the cover portion is formed in the frame as shown in FIG. 2, the outer end portion 12 is protruded And when the outer end stop is engaged with the opening portion 21 constituting the box, the outer end stop is engaged with the inner end stop 23 forming the opening portion, so that the outer end stop can be firmly engaged, It can be done.

3 and 4 illustrate another insert injection pattern of the magnet unit constituting the speaker unit. The insert plate 174 extends from the cover surface 11 to the lower end of the bottom plate 174 constituting the magnet unit, 13). In addition, since the connection plate 13 is formed to expose a part of the bottom plate 174, even if the plastic plate is expanded or contracted due to the temperature change, any dislocation of the magnet portion And the heat dissipation is also excellent.

FIG. 5 illustrates another embodiment of the present invention, in which a plurality of through holes are formed in the cover surface to dissipate heat generated in the magnet portion when the cover surface is formed in the magnet portion.

Therefore, it is advantageous to provide ease of insert injection molding by the through hole, and it is also advantageous in terms of heat dissipation. Further, by virtue of the through hole, it is possible to exhibit a strong adhesion characteristic during insert injection molding with the magnet part 170 of the cover face .

10: speaker unit 11: cover surface
20: box 21: opening

Claims

A magnet unit having a constant width is formed in a frame of a speaker unit formed of plastic,
A box forming an opening for mounting the speaker unit having the cover surface;
Wherein the width of the box is the same as the width of the speaker unit having the cover surface so that the sound pressure is directed by the enlargement of the magnet, as well as the ease of assembly of the magnet unit.

The method according to claim 1,
Wherein the cover unit of the speaker unit is molded at the same time as the magnet unit by insert injection molding.

3. The method of claim 2,
And the cover surface to be injection-molded by the insert is extended to the bottom surface of the trough plate to form an extended surface to be wrapped.

The method according to claim 2 or 3,
And a speaker unit on which a through hole is formed in the cover surface.

The method according to claim 1,
Wherein the speaker unit has an outer end step formed on the cover surface and an inner end step formed on the opening part of the box so that the speaker unit is engaged with each other so that the cover surface does not protrude beyond the outer wall surface of the box.

The method according to claim 1,
The support frame 111 is formed at a portion where the damper of the frame 110 is placed when the speaker unit is assembled and the left and right partition walls 112 are formed at the back surface of the frame 110 And a speaker unit for forming a locking protrusion 113 for fixing the magnet.