KR101927961B1 - Speaker and speaker manufacturing method - Google Patents

Abstract

The present invention relates to a method of manufacturing a speaker and a speaker, and more particularly, to a method of manufacturing a speaker and a speaker by combining a yoke, a magnet, and a top plate as a magnetic system of a speaker, A speaker is manufactured by assembling a coil (including a bobbin with a voice coil wound thereon) integrally with one side surface and the other side surface of a suspension, which is a spring supporting system, to assemble the respective packages to separate the supporting path of the suspension, The structure is improved so that the +/- alternate signal of the signal providing unit (for example, the amplifier) is conducted through each terminal of the voice coil, and the outer edge portion and the inner edge portion of the suspension have a height difference, And to a method of manufacturing such a speaker and speaker.

Description

TECHNICAL FIELD [0001] The present invention relates to a speaker and speaker manufacturing method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a speaker and a speaker, and more particularly, to a method of manufacturing a speaker and a speaker using a magnet, And a bobbin coupled to the diaphragm and the dust cap in a state in which the voice coil is wound, an outer rim portion fixed to the frame constituting the housing, and an inner rim portion to which the vibration system is fixed, And a suspension (damper) that is connected to the speaker and provides a spring force.

In general, a speaker is an acoustic apparatus that generates sound waves by converting an electrical signal into a vibration of a diaphragm to generate a small-sized wave in the air. That is, the speaker is a conversion device for converting electric energy into acoustic energy, and is largely composed of a vibration system, a supporting system, and a mechanical part.

These loudspeakers can be classified into various types according to the position where the diaphragm, which is a part of the vibration system, is placed, the shape of the diaphragm, the principle and method of converting electric signals into sound waves, and the like. Particularly, a speaker used in a display device such as a TV is a radiation type speaker in which a diaphragm is directly placed in air. When a voice signal current is supplied to a coil located in a magnetic field formed by a permanent magnet, mechanical force is applied to the coil It is common to use the principle of acting and causing movement.

An example of such a general speaker is Korean Patent No. 419915, which discloses a speaker in which a speaker is provided with a diaphragm in which a yoke, a permanent magnet, a plate and a suspension (damper) are integrated, a voice coil, a frame and a protector It is a speaker.

2. Description of the Related Art [0002] In recent years, a display device on a large screen has become widespread due to the development of semiconductor technology. Speakers must be miniaturized and / or slimmed in order to realize a beautiful and simple design of the large screen display device.

As described above, if the speaker is made small and / or slim, the vibration system, the machine, and the supporting system parts constituting the speaker must be downsized. Particularly, in the flat panel display device, the width and the thickness of the loudspeaker are largely limited, and the restriction of the length is relatively small. Therefore, a speaker of a type which does not reduce the effective vibration area of the speaker by extending in the longitudinal direction while reducing the width and thickness of the speaker is mainly used. That is, a rectangular speaker having a large diameter (short axis) to a long diameter (long axis) ratio is applied without reducing the effective vibration area and the like.

Examples of the rectangular speaker include Korean Patent Registration No. 10-1100122 (name: Speaker; filed on Nov. 10, 2009), which includes at least one magnet for forming a magnetic field; At least one voice coil for generating a magnetic field by an externally supplied current and being operated by an interaction with a magnetic field formed at the at least one magnet; A diaphragm that is vibrated by movement of the at least one voice coil to generate sound; And at least one vibration assisting member attached to the diaphragm, for causing vibration due to the interaction of the at least one magnet and one or more voice coils to be evenly distributed throughout the diaphragm; Wherein the vibration assisting member has a surface having a predetermined width extending downward from the diaphragm, and the at least one voice coil is attached to the surface.

The common structure of such a conventional speaker is summarized as follows. As shown in FIG. 1, the speaker 1 includes a yoke 1a, a magnet 1b, and a plate 1c, A dust cap 2b at the center of the diaphragm 2a and a bobbin 2b connected to the diaphragm 2a and the dust cap 2b in a state in which the voice coil 2c is wound A vibration system 2 for outputting sounds while mutually reacting with the magnet machine 1 in response to an alternating signal applied to the voice coil 2c and a suspension for supporting the vibration system 2, (3) which is made up of a plurality of elastic members.

 In the conventional speaker and the rectangular speaker as described above, the laminating elements of the yoke 1a, the magnet 1b, and the plate 1c constituting the magnet 1 are bonded and fixed through an adhesive such as an acrylic bond, The yoke, the magnet and the plate may be combined with each other through the acrylic bond and / or the caulking, or the frame and the plate may be pre-bonded through caulking, Bonded via an acrylic-based bond.

 However, as described above, a speaker in which the connection between the components of the machine 1 and the frame 1 and the frame 4 is made by bonding is very troublesome, and the acrylic bond spreads to the outside of the bonding portion, There is a problem that can not be done.

In addition, the acrylic bond itself has a problem that is not good for the working environment due to the smell. To solve this problem, a separate ventilation device must be operated, electric energy must be consumed for drying, and drying time and space must be secured have.

Further, when the yoke 1a and the magnet 1b are bonded together after the frame 4 and the plate 1c are joined together by caulking, a preliminary operation is required, so that the workability, in particular, There is a problem.

 In addition, even strong bodys have the problem of deteriorating the bonding force due to long-term use or thermal stress or impact.

2 (a) and 2 (b), the vibration plate 2a, the dust cap 2b and the voice coil 2c constitute the vibration system 2, In the state where the other end of the bobbin 2d wound on one end is laminated, the respective components are bonded together by adhesive bonding.

However, in the conventional speaker in which the coupling between the components of the vibration system 2 is made through bonding as described above, the vibration plate 2a, the dust cap 2b, and the voice coil 2c are wound on the bobbin 2d There is a problem that the bonding operation of the other end is very cumbersome and the adhesive spreads to the outside of the bonding portion and the appearance is not good. In particular, when the adhesive is not evenly applied, the vibration output characteristic is deteriorated.

In the conventional speakers, since the elastic support system 3 is made of a sheet material having high deformability due to external pressure or movement, the voice coil 2a is held at the center of the gap of the machine tool 1, A separate jig is required, and after the voice coil 2a is fixed, an operation of pulling out and removing the jig is required, and thus the workability is deteriorated.

In addition, since the conventional speakers are made of a cotton material for the elastic support system, when the vibration is performed for a long period of time, the elastic support system is deformed in shape and the output characteristic is changed.

In addition, since conventional speakers transmit an alternate signal output from an amplifier output terminal through a gold wire soldered to a diaphragm portion, there is a problem in that the voice coil connection structure and the external alternate signal transmission structure are complicated and workability is also lowered .

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art as described above, and it is an object of the present invention to provide a speaker, a magnetic yoke, a magnet and a top plate, A speaker is manufactured by assembling a coil (including a bobbin with a voice coil wound thereon) integrally with one side surface and the other side surface of a suspension, which is a spring supporting system, to assemble the respective packages to separate the supporting path of the suspension, The structure is improved so that the +/- alternate signal of the signal providing unit (for example, the amplifier) is conducted through each terminal of the voice coil, and the outer edge portion and the inner edge portion of the suspension have a height difference, And to provide a method of manufacturing a speaker and a speaker which are configured to be manufactured by the method.

In order to achieve the above object, the present invention provides a loudspeaker (10), wherein a part or all of the outside of the laminated structure of the yoke (11a), the magnet (11b) and the plate (11c) constituting the magnet machine (11) And the dust cap 12b constituting the vibration system 12 is attached to one side of the suspension which is the elastic support system 13 as a voice, The second package is formed by fixing the bobbin 12c on which the coil 12c is wound to the other side and the outer frame of the diaphragm 12a constituting the vibrometer 12 is fixed to the upper opening edge of the frame 14 And the central penetrating portion is fixed to the outer surface of the dust cap 12b.

The present invention is characterized in that the elastic support system 13 has a structure in which the inner frame 13a to which the vibration system 12 is fixed and the outer frame 13b to be fixed to the frame 14 constituting the housing are divided into two And the external connection terminal 13d is provided at one end of the divided outer frame 13b so as to be connected to the inner frame 13a by a plurality of ball- (13a ') and 13a' 'that are isolated and separated from each other at an azimuth angle of 0 to 45 degrees at the center of a two-dimensional orthogonal coordinate system (center of the elastic support system), and the outer rim (13b ') formed by cutting off the first and second outer edges (13b', 13b ') at an angle of 90 degrees with respect to the center of the two-dimensional rectangular coordinate system, A first inner side extending in the middle portion of the outer frame 13b ' And a first inner frame 13a 'extending from one cut-out portion of the first outer frame 13b' and facing the second outer frame 13b ' ) And a third bullet-proof arm (13b ") connected to the middle portion of the second inner frame (13a") extending in the middle of the second outer frame (13b " And a fourth bullet-proof arm extending from one cut-out portion of the outer frame 13b "and connected to one cut-out portion of the second inner frame 13a" positioned opposite to the first outer frame 13b " .

According to the present invention as described above, the present invention provides a vacuum cleaner comprising a first package formed by integrally or integrally joining a magnet 11 and a frame 14, and a dust cap 12b constituting a vibration meter 12, A bobbin 12c on which a voice coil 12c is wound is fixed on the other side of the suspension to form a second package and the outer edge of the diaphragm 12a constituting the vibration system 12 The structure of the loudspeaker 10 is improved so that it is fixed to the upper opening rim of the frame 14 and the central penetrating portion is fixed to the outer surface of the dust cap 12b, It is possible to manufacture the speaker 10 easily by manufacturing the speaker 10 by fixing the diaphragm 12a after positioning the second package.

In addition, in the present invention, the carbon footwear 13c constituting the elastic support system 13 is formed as an intermediate portion of the first inner rim 13a 'extending in the middle portion of the first outer rim 13b' and located in the same direction Connected to the connected first carcinogen and one cut-out portion of the first inner rim 13a 'extending from one cut-out portion of the first outer rim 13b' and facing the second outer rim 13b ' A third bullet cancer extending from the middle of the second bullet cancer and the second outer frame 13b "and connected to the middle portion of the second inner frame 13a" located in the same direction and the third bullet cancer extending from one side of the second outer frame 13b " And a fourth bullet-proof arm extending from the cut-out portion and connected to one cut-out portion of the second inner frame 13a "facing the first outer frame 13b", whereby the bullet carcass extending from the first outer frame 13b " Are connected to the first inner frame facing each other and supported by the first outer frame, The cancer is burnt is connected to the second inner frame facing to obtain the effect of preventing the distortion of the sound according to the symmetric distortion generated in the structure for supporting elastic.

1 is a cross-sectional view showing a state in which a frame and a plate of a conventional speaker are caulked (pre-worked).
2 is a cross-sectional view showing a pre-worked portion of a conventional speaker and an adhesive bonding state of a yoke and a magnet.
3 is a perspective view showing the configuration according to the first embodiment of the present invention.
4 is a perspective view showing a configuration according to the first embodiment of the present invention in more detail.
5 is an exploded perspective view showing a configuration according to a first embodiment of the present invention;
6 is a partial sectional view showing a configuration according to the first embodiment of the present invention.
FIG. 7 is an exploded perspective view specifically showing the packaging state of the vibration system and the configuration of the elastic support system in the present invention. FIG.
8 is a perspective view showing a configuration according to a second embodiment of the present invention;
9 is a sectional view showing a configuration according to a second embodiment of the present invention.
10 is a perspective view illustrating a state in which a diaphragm is fixed to a second package of the present invention and is coupled to a second package.
11 is a perspective view illustrating a state in which the diaphragm is fixed in a state where the second package is coupled to the first package of the present invention.
12 and 13 are perspective views showing another example of the elastic support system in the present invention.
FIG. 14 is a sectional view showing the difference in thickness between a machine and a frame when a planar elastic support system, a central upward protruding elastic support system, and a central downward depressed elastic support system are applied.
15 is an exploded perspective view showing a configuration according to a third embodiment of the present invention;
16 is a partial sectional view showing a configuration according to a third embodiment of the present invention.

The present invention will now be described with reference to the accompanying drawings.

First, referring to the first embodiment of the present invention, as shown in FIGS. 3 to 6, a magnet 11 for forming a magnetic flux in a gap; A vibration system (12) for mutually reacting with the electromagnet (11) according to the inputted alternating signal and outputting sound while vibrating; A volar support system 13 for supporting the vibration system 12 elastically; And a frame (14) for maintaining and protecting the arrangement structure of the magnet machine (11), the vibration meter (12) and the elastic support system (13), characterized in that the yoke A part or all of the outside of the laminated structure of the magnet 11a, the magnet 11b and the plate 11c is casing with the engaging means 15 and integrally or in the same manner as the frame 14 to constitute the first package, The dust cap 12b constituting the vibration plate 12 is fixed to the other surface of the bobbin 12c on which the voice coil 12c is wound on one side of the suspension which is the elastic support system 13, 12 may be one in which the outer rim of the diaphragm 12a constituting the diaphragm 12 is fixed to the upper surface (upper opening rim) of the frame 14 and the central penetrating portion is fixed to the outer surface of the dust cap 12b .

The present invention is characterized in that a part or all of the outside of the laminated structure of the yoke 11a, the magnet 11b and the plate 11c constituting the magnet machine 11 is casing by the engaging means 15, And the dust cap 12b constituting the vibration system 12 is connected to one side of the suspension which is the elastic support system 13 and the bobbin 12c on which the voice coil 12c is wound, A second package is formed by fixing a center penetrating portion of the diaphragm 12a to the outer surface of the dust cap 12b and fixing the outer rim of the diaphragm 12a to the upper surface of the frame 14 Or it may be made to be fixed to the surface (upper opening edge).

Here, the speaker 10 according to the present invention is an acoustic output means for outputting an acoustic signal by vibrating a diaphragm while interacting with an alternating signal (+ signal, - signal) applied to a coil and a magnetic field of the magnet 11, Or a rectangular (track-type) speaker having a major axis and a minor axis. Accordingly, it is preferable that the magnet 11, the vibration system 12, the elastic support system 13, and the frame 14 are circular or rectangular.

In the present invention, the magnet machine 11 includes a yoke 11a, a magnet 11b, and a plate 11c. The yoke 11a, which constitutes the magnet machine 11, shaped plate made of pure iron (for example, Fe: 99.4%, Si: 0.3%, Mn: 0.2%) which supplies the magnetic flux from the magnet 11b to the magnetic pole while forming an air gap Lt; / RTI > At this time, it is preferable that the thickness of the yoke 11a is thick so that the leakage magnetic flux is minimized.

The magnet 11b constituting the magnet machine 11 may be a central penetrating member for supplying a continuous DC magnetic flux to an air gap of a magnetic circuit to which the coil is to be moved.

The plate 11c constituting the magnet machine 11 is made of pure iron (for example, Fe: 99.4%, Si: 0.3%) which concentrates the magnetic flux from the magnet 11b while forming an air gap through which the coil flows, 0.0 > Mn: 0.2%). ≪ / RTI >

The vibration system 12 in the present invention includes a diaphragm 12a, a dust cap 12b at the center of the diaphragm, and a bobbin 12d coupled to the diaphragm and the dust cap in a state where the voice coil 12c is wound The diaphragm 12a constituting the vibration system 12 may be a cone paper or a synthetic resin vibration plate in which an outer rim is fixed to one end of a frame (speaker main body) by an edge.

In addition, the voice coil 12c constituting the vibration system 12 may be one in which the coil itself is wound, cured and bonded after chemical treatment, or wound on the bobbin 12d.

In the present invention, the elastic support system 13 is fixed to a frame 14 constituting the housing and a portion of the inner frame 13a to which the vibration system 12 is fixed, as shown in FIG. 7 The outer frame 13b is connected by a plurality of charging arms 13c in the form of a rod in a state of asymmetrically bisecting to provide the elastic supporting force and the outer connecting frame 13b is connected to both ends of one end of the divided outer frame 13b, (13d), and may be a conductor, particularly a conductive metal plate spring.

The inner rim 13a is divided into first and second inner rim portions 13a 'and 13a' separated from each other at an azimuth angle of 0 to 45 degrees at the center of the two-dimensional rectangular coordinate system (center of the elastic support system) ).

In addition, the outer frame 13b may be composed of first and second outer frames 13b 'and 13b' 'that are cut out and separated from each other at an azimuth angle of 90 degrees from the center of the two-dimensional rectangular coordinate system.

In this case, the two-dimensional Cartesian coordinate system may be a coordinate system in which the upper, lower, left, and right orientations above the center of the elastic support system 13 are viewed from a plane, and the upward direction is interpreted as zero degrees.

The bullet-shaped arm 13c may include a first bullet-proof arm extending from a middle portion of the first outer frame 13b 'and connected to a middle portion of the first inner frame 13a' A second bullet-proof arm 13b 'extending from one side of the cut-out portion and connected to one side of the first inner frame 13a' facing the second outer frame 13b ' ) Extending from the cut-out portion of the third bullet-proof arm and the second outer frame 13b "connected to the middle portion of the second inner frame 13a" located in the same direction and extending from the middle portion of the first outer frame 13b " 13b "of the second inner frame 13a ").

The external connection terminal 13d is connected to a pair of external connection terminals 13b extending from the one end of each of the first and second outer frames 13b 'and 13b' constituting the outer frame 13b to the free space And may be a terminal such as a connecting piece or a connecting terminal including a socket coupled to a pair of connecting pieces provided at an end of the extended path.

A dome type dust cap 12b made of a synthetic resin material is insert injection molded on the inner edge 13a of the elastic support system 13. The dome type dust cap 12b is inserted into the outer edge 13b of the elastic support system 13, And the voice coil 12c or the voice coil 12c is wound on the inner rim 13a of the bobbin 12d so that the bobbin 12d is wound on the inner rim 13a 13f may be formed integrally or integrally with the dust cap 12b through insert injection molding or adhesion so as to constitute a second package.

At this time, terminals of the voice coil 12c are connected to each of the inner edges 13a of the elastic support system 13, and the outer connection terminals 13d provided on the divided outer frame 13b extend outward It can be an external alternate signal input terminal (amplifier side).

On the other hand, in the present invention, the frame 14 is a track-shaped speaker housing having a circular shape or a major axis and a minor axis, and may be a thermoplastic resin or a thermosetting resin synthetic resin material to be injection molded, or a metal material to be pressed or forged.

6), the yoke 11a, the magnet 11b, and the plate 11c, which are the above-mentioned magnet machine 11, and the plate 11c ) Can be injection-molded in the same manner as the engaging means (15) for giving a restraining force to the frame (14), and then the first package can be cured while the frame (14) is pressed or forged The engaging means 15 is injection-molded on one end of the frame 14 and then cured to form a yoke 11, which is a magnet machine 11, The stacked structure of the first plate 11a, the magnet 11b, and the plate 11c can be constrained to constitute the first package.

At this time, a protrusion for firm connection with the coupling means 15 is formed at one end outer edge of the frame 14 to which the engaging means 15 is injection-molded (insert injection molding), and can be engaged in the curing process .

The frame 14 and the engaging means 15 are supplied in a liquid or powder form into a mold having the laminated structure of the yoke 11a, the magnet 11b, the plate 11c and the frame 14, Or may be compression hardening and heat curing.

10, the dust cap 12b constituting the vibration system 12 is attached to one side of the suspension, which is the elastic support system 13, and the voice coil 12c And the diaphragm 12a is fixed to the outer periphery of the upper end of the dust cap 12b in the second package formed by fixing the bobbin 12c wound on the other side of the yoke 12c, The frame 14 of the first package, which is formed by combining the outer surface of the laminated structure of the first package 11a, the magnet 11b and the plate 11c by the coupling means 15 in the same manner as the frame 14, The outer edge 13b of the elastic support system 13 constituting the second package is fixed (adhered) to the fixing jaw 14a formed on the surface (the upper edge of the frame on which the ruler 11 is located) , The upper surface of the frame 14 (the surface of the upper opening which is opened and opened) It is possible to manufacture the speaker 10 by fixing the outer rim portion (by fitting or fixing the fitting through a separate fitting press-fit rim member).

10, the dust cap 12b constituting the vibration system 12 is mounted on one side of the suspension, which is the elastic support system 13, and on the side of the bobbin (not shown) wound with the voice coil 12c The second package may be fixed to the first package by fixing the diaphragm 12a to the upper outer portion of the dust cap 12b after fixing the second package 12c to the other side. May be produced.

11, the dust cap 12b constituting the vibration system 12 is attached to one side of the suspension, which is the elastic support system 13, and the voice coil 12c Of the second package formed by fixing the bobbin 12c wound on the other side of the bobbin 12c to the outer surface of the yoke 11a and the magnet 11b and the plate 11b constituting the magnet machine 11, A portion of the outer side of the laminated structure of the first package 11c is bonded to the frame 14 by the coupling means 15 in the same manner as the frame 14, (Adheres) the inner rim portion of the diaphragm 12a to the upper outer rim portion of the dust cap 12b, and fixes (adheres) the inner rim portion of the diaphragm 12a to the upper rim portion of the dust cap 12b, The outer rim portion of the diaphragm 12a is connected to the upper surface of the frame 14 By a fixed (fitted with an adhesive or a separate snap-fit the frame member fixed) to the surface of the upper rim) may also be prepared with a speaker (10).

Hereinafter, the operation of the present invention will be described.

3 to 7), a part or all of the outside of the laminated structure of the yoke 11a, the magnet 11b, and the plate 11c constituting the magnet machine 11 is combined with the coupling means And the dust cap 12b constituting the vibration system 12 is attached to one side of the suspension which is the elastic support system 13 by the voice coil 15, The outer frame of the diaphragm 12a constituting the vibrometer 12 is fixed to the upper opening edge of the frame 14 by fixing the bobbin 12c wound on the frame 12c to the other side, And the central penetrating portion is fixed to the outer surface of the dust cap 12b.

As described above, in the present invention in which the diaphragm 12a is coupled to the first and second packages, the dust cap 12b constituting the vibration meter 12 is shaved The diaphragm 12a is fixed to the outer periphery of the upper part of the dust cap 12b in the second package formed by fixing the bobbin 12c wound on the voice coil 12c to the other surface on one side of the suspension which is the supporting system 13 A part or the entire outside of the laminated structure of the yoke 11a constituting the magnet 11 and the magnet 11b and the plate 11c is subjected to casing treatment by the engaging means 15 to form the frame 14, (13) constituting a second package on a fixing jaw (14a) formed on the inner bottom surface of the frame (14) of the first package, And the outer frame 13b of the frame 14 is fixed (adhered) The outer edge portions of a surface of the open top rim) vibration plate (12a) by a fixed (fitted with an adhesive or a separate snap-fit the frame member fixed) to produce a speaker 10.

In this case, the dust cap 12b constituting the vibration system 12 is fixed on one side of the suspension as the elastic support system 13 and on the other side of the bobbin 12c on which the voice coil 12c is wound The diaphragm 12a may be fixed to the upper end of the dust cap 12b to form a second package. The second package is fixed to the first package to manufacture the speaker 10. [

The present invention in which the diaphragm 12a is composed of the first package and the second package is configured such that the dust cap 12b constituting the vibration system 12 is inserted into the suspension support 13, And the bobbin 12c on which the voice coil 12c is wound is fixed on the other side of the yoke support system 13, A part of or the entire outer side of the laminated structure of the first package 11a, the magnet 11b and the plate 11c is combined with the frame 14 by the coupling means 15 in the same manner as the frame 14, (Adhered) to the fixing jaw 14a formed on the upper edge of the dust cap 12b at the upper edge of the upper end of the dust cap 12b (Adhesive) the outer edge portion of the diaphragm 12a, And the speaker 10 is manufactured by fixing (fitting or fixing the fitting through a separate fitting press-fit frame member) to the upper surface (the face of the upper opening of the extended opening) of the frame 14.

In the present invention as described above, the first package is formed by integrally or integrally joining the magnet machine 11 and the frame 14, and the dust cap 12b constituting the vibration system 12 is supported by the elastic support system 13 And a bobbin 12c on which a voice coil 12c is wound is fixed to the other side of the suspension so that the outer rim of the diaphragm 12a constituting the vibration system 12 is fixed to the frame 14), and the structure of the speaker (10) is improved so that the central penetrating portion can be fixed to the outer surface of the dust cap (12b), that is, And the speaker 10 can be manufactured by fixing the diaphragm 12a after the speaker 10 is positioned.

In addition, in the present invention, the carbon footwear 13c constituting the elastic support system 13 is extended from the middle portion of the first outer frame 13b 'to the middle portion of the first inner frame 13a' And a first inner carcass 13a 'extending from one cut-out portion of the first outer frame 13b' and being opposed to the second outer frame 13b ' The third bullet canal extending from the middle portion of the second carcinogen and the second outer rim 13b "to the middle portion of the second inner rim 13a" located in the same direction, and the third bullet cancer 13b " And a fourth bullet-proof arm extending from the one cut-out portion and connected to one cut-out portion of the second inner frame 13a " located opposite to the first outer frame 13b ". Thus, The carcass is connected to the first inner frame facing each other and supported elastically, and the second outer frame To prevent distortion of a sound according to a symmetric warp the burnt extended cancer generated in which the support is connected to the second inner frame facing elastic structure.

Further, in the present invention, a damper constituting the elastic support system 13, that is, a suspension, is applied to a plate spring such as a metallic material which is not easily deformed by external pressure, The voice coil 12c can be easily and accurately inserted into the center of the gap of the magnetic machine 11 without requiring a separate jig for mounting the voice coil 12c in the correct position, Uniformity and accuracy.

In the present invention, the suspension, which is the elastic support system 13, is made of a conductive material so as to divide the connecting portion of each of the terminals of the voice coil 12c and the connecting portion between the alternate signal providing unit (for example, an amplifier) It is possible to provide a path through which the alternate signal of +/- is communicated to the voice coil 12c at the same time as the voice coil 12c is connected to the output terminal of the voice coil 12c through the gold wire soldered to the diaphragm 12a, It is possible to simplify the connection structure of the voice coil 12c and the alternate signal transmission structure to the outside.

Further, the present invention combines the lamination structure of the yoke 11a, the magnet 11b, the plate 11c, and the supporting frame 14 constituting the electromagnet 11 of the speaker 10 by the curing of the thermoplastic resin , A part of or all of the outer side portion of the laminated structure formed by the magnet machine 11 is not caged but the outer side portion of the laminated structure is cured so that the cased portion is hardened and the binding operation is performed by providing the binding force. Thereby providing a coupling structure of a speaker which is excellent in bonding workability of a laminated structure and minimizes contamination in a natural environment or a working environment.

In addition, the present invention provides a loudspeaker having improved bonding force and retaining force by providing a bonding operation by partially or entirely casing the outer portion of the laminated structure by providing a constraining force while the casing-treated portion is cured Thereby providing a bonding structure.

Further, according to the present invention, it is possible to protect the magnetic circuit portion of the speaker, and the joint portion between the magnetic circuit and the frame from external impacts, by combining and sealing the laminated structure.

In the present invention as described above, the yoke 11a, the magnet 11b, the plate 11c, and the frame 14 are sequentially stacked in the lower mold, and the outer shape of the frame 14 The lower end made of a cylindrical or elliptic shape of an upper mold for molding the yoke 11a is drawn by the gap between the yoke 11a and the magnet 11b / plate 11c, 11b and the center of the through hole of the plate 11c and then fixed to the mold 1 by means of the coupling means 15 which is injected into the mold 1 and hardened.

Therefore, the yokes 11a are coupled with the gap between the magnet 11b and the plate 11c with a predetermined gap, so that the coil inserted into the gap and the magnetic circuit are uniformly and accurately electromagnetically reacted So that accurate speaker output characteristics can be obtained.

As another example of the elastic support system 13 of the present invention, as shown in FIGS. 12 and 13, the inner edge 13a and the outer edge 13b may be located at an altitude difference have.

For example, the inner rim 13a may be connected to the outer rim 13b in a state where the inner rim 13a is positioned higher than the outer rim 13b with respect to a plane, and the inner rim 13a may be connected to the outer rim 13b, And may be connected by the bullet cancer 13c in a state of being located lower.

14, the thickness (height) of the lower portion of the frame 14 or the upper portion of the frame 14, which surrounds the outside of the machine tool 11 to the machine tool 11, It is possible to design it.

That is, as shown in the first and second embodiments of the present invention, when the elastic support system 13 is formed in a planar shape, as shown in FIG. 14 (a) The upper end portion 12c of the frame 14 is vibrated in a range of a space s secured up and down in a state where the lower end portion of the frame 14 is positioned at the middle portion of the magnetic flux of the magnet 11. In this structure, The inner edge 13a of the elastic support system 13 is positioned higher than the outer edge 13b of the elastic support system 13 as shown in Figure 14 (b) The lower end portion of the voice coil 12c of the vibrometer 12 can be vibrated downward in a state where it is positioned above the magnetic flux of the magnet 11 by reducing the thickness mt ' ), It is possible to design the machine by reducing the thickness of the machine 11 When the inner edge 13a of the elastic support system 13 is positioned lower than the outer edge 13b, the voice coil 12c of the vibration system 12, as shown in Fig. 14 (c) The height of the diaphragm 12a can be reduced by positioning the lower end portion under the magnetic flux of the magnet 11 so that the upper thickness ht 'of the frame 14 can be reduced.

Therefore, the thickness of the frame 14 or the thickness of the electromagnet 11 can be reduced, so that a slimmer speaker 10 can be manufactured.

As shown in FIGS. 15 and 16, the frame 14 and the engaging means 15 are provided independently of each other, and the frame 14 is provided on the lower surface of the frame 14 A coupling protrusion 14b is provided at the position of the coupling means 15 corresponding thereto and the coupling protrusion 14b penetrating the coupling hole 15a is thermally fused to the frame 14 And the coupling means 15 may be combined.

At this time, after the dust cap 12b constituting the vibration system 12 is fixed to one side of the suspension as the elastic support system 13 and the other side of the bobbin 12c wound with the voice coil 12c, 12a is fixed to the upper outer surface of the dust cap 12b to fix the outer frame of the diaphragm 12a to the upper surface of the frame 14, The second package 15 may be coupled to the first package as described above.

In the above, the engaging means 15 may be included in the frame 14, but is preferably interpreted as being handled in a separate form.

At this time, the engaging projection 14b formed on the frame 14 may be formed on the lower surface of the step 14c so that a space is formed between the frame 14 and the engaging means 15.

A space is formed between the frame 14 and the engaging means 15 so that heat generated by the voice coil 12c vibrating up and down in the magnetic flux formed in the magnet 11 will flow in accordance with the flow of air It is possible to maintain the balance of the pressure between the inside and the outside of the magnet machine 11 while ensuring smooth discharge.

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.

In addition, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

10: Speaker 11: Keyboard
11a: yoke 11b: magnet
11c: plate 12: vibration meter
12a: diaphragm 12b: dust cap
12c: voice coil 12d: bobbin
13: elastic support system 13a: inner rim
13a ', 13a'': 1st and 2nd inner rims 13b: outer rim
13b ', 13b'': first and second outer rims 13c:
14: frame 14a: fixed jaw
14b: engaging projection 14c: step
15: engaging means 15a: engaging means

Claims (20)

A magnet machine (11) for forming a magnetic flux in the gap; A vibration system (12) for mutually reacting with the electromagnet (11) according to the inputted alternating signal and outputting sound while vibrating; A volar support system 13 for supporting the vibration system 12 elastically; And a frame (14) for maintaining and protecting the arrangement structure of the magnet machine (11), the vibration meter (12), and the elastic support system (13)
A part or all of the outside of the laminated structure of the yoke 11a constituting the magnet 11 and the magnet 11b and the plate 11c may be integrally or integrally formed with the frame 14, Thereby forming a first package,
The dust cap 12b constituting the vibrometer 12 is inserted into the inner edge 13a of the elastic support system 13 having an altitude difference with the inner edge 13a being lower than the outer edge 13b, The bobbin 12c having the voice coil 12c wound thereon is fixed to the other surface of the first package 13a,
Characterized in that an outer frame of the diaphragm 12a constituting the vibrometer 12 is fixed to an upper opening rim of the frame 14 and a central penetrating portion is fixed to the outer surface of the dust cap 12b speaker.
A magnet machine (11) for forming a magnetic flux in the gap; A vibration system (12) for mutually reacting with the electromagnet (11) according to the inputted alternating signal and outputting sound while vibrating; A volar support system 13 for supporting the vibration system 12 elastically; And a frame (14) for maintaining and protecting the arrangement structure of the magnet machine (11), the vibration meter (12), and the elastic support system (13)
A part or all of the outer side of the laminated structure of the yoke 11a constituting the magnet 11 and the magnet 11b and the plate 11c may be subjected to a casing treatment with the engaging means 15 to integrally or integrally engage with the frame 14. [ Thereby forming a first package,
The dust cap 12b constituting the vibrometer 12 is inserted into the inner edge 13a of the elastic support system 13 having an altitude difference with the inner edge 13a being lower than the outer edge 13b, A dust cap 12b constituting the vibration system 12 is fixed on one side of the diaphragm 12a and a bobbin 12c on which the voice coil 12c is wound is fixed on the other side, Is fixed to the outer surface of the dust cap (12b) to constitute the second package,
And an outer rim of the diaphragm (12a) is fixed to an upper surface of the frame (14).
The method according to claim 1,
The elastic support system 13 is formed in a rod shape in a state where a portion of the inner frame 13a to which the vibration system 12 is fixed and a portion of the outer frame 13b fixed to the frame 14 constituting the housing are asymmetrically divided Is a conductive suspension which is connected by a plurality of carbon footprints (13c) to provide elastic support and an external connection terminal (13d) is provided at one end of one side of the divided outer frame (13b).
The method of claim 2,
The elastic support system 13 is formed in a rod shape in a state where a portion of the inner frame 13a to which the vibration system 12 is fixed and a portion of the outer frame 13b fixed to the frame 14 constituting the housing are asymmetrically divided Is a conductive suspension which is connected by a plurality of carbon footprints (13c) to provide elastic support and an external connection terminal (13d) is provided at one end of one side of the divided outer frame (13b).
The method according to claim 3 or 4,
The inner rim 13a is divided into first and second inner rim portions 13a 'and 13a "separated from each other at an azimuth angle of 0 to 45 degrees at the center of the two-dimensional rectangular coordinate system ≪ / RTI >
The method according to claim 3 or 4,
Wherein the outer frame (13b) comprises first and second outer frames (13b ') and (13b'') which are cut out and separated from each other at an azimuth angle of 90 degrees from the center of the two-dimensional rectangular coordinate system.
The method according to claim 3 or 4,
The bullet-shaped arm 13c includes a first bullet-proof arm 13b 'extending from a middle portion of the first outer frame 13b' and connected to a middle portion of a first inner frame 13a ' ) Of the second bullet-proof arm 13 and the second bullet-proof arm 13b "extending from the one-side cutout portion of the second outer bulb 13b" and connected to the one cut-out portion of the first inner frame 13a 'facing the second outer- And extends from the one cut-out portion of the third bullet-proof arm and the second outline frame 13b " connected to the middle portion of the second inner frame 13a "extending in the middle portion to form the first outer frame 13b" And a fourth bullet-proof arm connected to a cut-away portion of the second inner rim 13a "
The method according to claim 3 or 4,
A dome type dust cap 12b made of a synthetic resin material is insert injection molded on the inner edge 13a of the elastic support system 13. The outer edge 13e for expanding the vibration space is formed in the outer edge 13b, And an inner rim 13f for fixedly engaging or expanding a vibration space of the bobbin 12d on which the voice coil 12c or the voice coil 12c is wound is provided on the inner rim 13a, Is formed integrally or integrally with the dust cap (12b) through insert injection molding or adhesion.
delete delete The method according to claim 1 or 2,
The laminated structure of the yoke 11a, the magnet 11b and the plate 11c, which are the magnet machines 11, is combined with the frame 14 to provide a binding force to the frame 14, (15) and then cured to form a first package.
The method according to claim 1 or 2,
When the frame 14 is a metal material to be pressed or forged, the engaging means 15 is injection-molded onto one end of the frame 14 and then cured to form a yoke 11a and a magnet 11b) and the plate (11c) are constrained to form a first package.
delete delete The method according to claim 1 or 2,
The frame 14 and the engaging means 15 are provided independently and the engaging protrusion 14b is provided on the lower surface of the frame 14 and the engaging means 15 is provided at the position of the engaging means 15 corresponding thereto. (15a) is provided, and an engaging projection (14b) penetrating through the engaging hole (15a) is thermally fused.
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