KR101466786B1 - Suspention of speaker - Google Patents

Abstract

More particularly, the present invention relates to a suspension of a speaker that supports a vibrating state while a diaphragm is attached to the upper part and a voice coil is attached to the lower part to provide a power supply line function of the voice coil, The vibration output is controlled by adjusting the rigidity of the vibration driving portion (elastic arm) of the suspension, and the fixing force of the corresponding fixed portion when the suspension is fixed to the parts (case, diaphragm, and coil) Thereby preventing stress from concentrating on both end portions supporting the vibration and preventing polarity erroneous assembly or misuse by making clear the division of the +/- polarity connected to the external terminal. In case of a rectangular speaker, The present invention relates to a suspension of a speaker for preventing both longitudinal ends of the diaphragm from being twisted.
A suspension (10) of a rectangular loudspeaker (100) comprises a split path electrically separated from a main surface of a suspension (100), wherein a +/- alternating signal A case fixing part 11 for conducting; A fixing member 11a provided on one side or both sides of the path of each of the case fixing portions 11 to provide a fixing force while being fitted or guided in the case 20; A vibration fixing part 12 provided at the center of each of the divided case fixing parts 11 so as to be spaced apart from each other and providing a fixing surface of the diaphragm 2 and the coil 1 to the upper and lower parts respectively; The diaphragm 2 or the edge 2 'is provided at a part of the divided path of the vibration fixing part 12 which is in contact with the inner surface of the diaphragm 2 or the edge 2' A support member 12a; A vibration driving unit 13 for connecting the partition fixing paths of the case fixing unit 11 and the vibration fixing unit 12 to provide a vibration driving path; And a stiffness adjusting unit 13b having a width changing section provided on the path of the vibration driving unit 13 to adjust the elastic force of the vibration driving unit 13. [
The present invention can be applied to a case where a width changing section such as a concavoconvex structure is formed on the path of the vibration driving section 13 as an application requiring an expansion of the amplitude of the speaker 20 by increasing the displacement of the suspension 10, By adjusting the width to be narrower or wider than the width of both ends to be used for a speaker, particularly for a speaker requiring a low sound output, a wide sound reproduction band can be ensured and excellent output characteristics can be obtained.

Description

Suspension of Speaker {SUSPENTION OF SPEAKER}

More particularly, the present invention relates to a suspension of a speaker that supports a vibrating state while a diaphragm is attached to the upper part and a voice coil is attached to the lower part to provide a power supply line function of the voice coil, The vibration output is controlled by adjusting the rigidity of the vibration driving portion (elastic arm) of the suspension, and the fixing force of the corresponding fixed portion when the suspension is fixed to the parts (case, diaphragm, and coil) Thereby preventing stress from concentrating on both end portions supporting the vibration and preventing polarity erroneous assembly or misuse by making clear the division of the +/- polarity connected to the external terminal. In case of a rectangular speaker, The present invention relates to a suspension of a speaker for preventing both longitudinal ends of the diaphragm from being twisted.

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 conventional speaker is Korean Patent No. 419915, which discloses a speaker having a very small ultra slim frame, a large input signal and a broadband reproduction And a secondary suspension formed of a material having excellent restoring force to prevent the connection line between the voice coil and the electrode terminal from being disconnected.

The speaker disclosed in Korean Patent No. 419915 is a micro speaker having a diaphragm in which a yoke, a permanent magnet, a plate and a primary suspension (damper) are integrated, a voice coil, a frame and a protector, And a diaphragm disposed between the plate and the diaphragm, the diaphragm being attached to the secondary suspension such that the voice coil is positioned below the secondary suspension, And an edge (outer peripheral portion) of the secondary suspension is fixed to the frame.

Meanwhile, in recent years, a display device on a large screen has been widely used due to the development of semiconductor technology. In order to realize a beautiful and simple design of the large screen display device, flat panel display device, the speaker has to be miniaturized and slimmed.

As described above, when the speaker is miniaturized, the vibration system, the mechanical device, and the supporting system components constituting the speaker must be miniaturized. However, if the speaker is miniaturized, the performance is deteriorated due to the reduction of the acoustic radiation efficiency due to the reduction of the effective vibration area, the reduction of the magnetic flux density due to the reduction of the magnetic circuit, the limitation of the vibration width due to the thickness restriction, It is required to realize equivalent performance or more.

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.

At this time, the vibration assisting member is provided with a suspension in the form of a leaf spring. The suspension has an outer circumferential surface fixed to the upper surface of the frame and a third diaphragm portion (a portion for outputting sound due to the substantial vibration) And an oscillating arm for supporting the oscillating state by connecting the inner circumferential surface and the outer circumferential surface and the inner circumferential surface in a planar line form.

However, the above-described suspension of the vibration-assisting member has a limitation in sufficiently meeting the amplitude required for producing the bass output due to the stress concentration phenomenon of the suspension when the suspension is used in a speaker requiring a low sound output.

In addition, the suspension is fixed to the frame and the third diaphragm portion through adhesive by bonding the outer peripheral surface and the inner peripheral surface, respectively. In this case, the suspension is broken due to frequent vibration.

In addition, stresses are concentrated at both ends of the vibration arm (elastic arm), and both ends connected to the outer and inner circumferential surfaces are damaged by frequent vibration, such as tearing or deforming.

In addition, since the vibration assisting member is formed on the long axis, both ends of the vibration assisting member are twisted at the time of vibration, and the vibration assisting member can not vibrate constantly, resulting in distortion of the acoustic output.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a speaker suspension for supporting a vibration state while providing a diaphragm on the upper portion and a voice coil on the lower portion, (Elastic arm) of the suspension to adjust the rigidity of the vibration driving unit so as to control the vibration output, and when the suspension is fixed to the parts (case, diaphragm, and coil) to which the suspension is attached or attached, To prevent the stress from concentrating on both end portions supporting the vibration and to prevent the polarity erroneous assembly or misuse by making clear the division of +/- polarity connected to the external terminal, And a suspension of a speaker that prevents both longitudinal ends of the diaphragm from twisting when vibrating. And there.

According to an aspect of the present invention, there is provided a suspension (10) of a speaker (100), the suspension (10) comprising a plurality of divided paths electrically separated from each other, A case fixing unit 11 for conducting a +/- alternate signal; A fixing member 11a provided on one side or both sides of the path of each of the case fixing portions 11 to provide a fixing force while being fitted or guided in the case 20; A vibration fixing part 12 provided at the center of each of the divided case fixing parts 11 so as to be spaced apart from each other and providing a fixing surface of the diaphragm 2 and the coil 1 to the upper and lower parts respectively; The diaphragm 2 or the edge 2 'is provided at a part of the divided path of the vibration fixing part 12 which is in contact with the inner surface of the diaphragm 2 or the edge 2' A support member 12a; A vibration driving unit 13 for connecting the partition fixing paths of the case fixing unit 11 and the vibration fixing unit 12 to provide a vibration driving path; And a stiffness adjusting unit 13b having a width changing section provided on the path of the vibration driving unit 13 to adjust the elastic force of the vibration driving unit 13. [

Further, the present invention is characterized by further comprising a stress dispersing member (13a) provided in the form of a curved slit at both ends of the vibration driving unit (13) and dispersing the concentration of stress at the time of vibration.

The present invention by the above-mentioned problem solving means is an application for increasing the displacement of the suspension (10) to increase the amplitude of the speaker (20) The width of the middle portion can be narrower or wider than the width of the both ends to provide a speaker, particularly a speaker for use in a demand for a low sound output, so that a wide sound reproduction band can be ensured and excellent output characteristics can be obtained The effect is obtained. In addition, it is possible to control the rigidity of the spring by adjusting the elastic constant, thereby achieving the effect of making it possible to cope with various output characteristics of speakers required.

In addition, in the present invention, a plurality of fixing members 11a are integrally or partly provided on one side or both sides of the case fixing portions 11 so as to bend downward or upward so that the case fixing portions 11 are seated A fixing force to the case 20 is increased and a degree of warpage of the case fixing portion 11 is reinforced by providing a portion to be fitted or fixed to the groove formed in the upper surface of the case 20 Thereby obtaining an effect of improving robustness.

The present invention is characterized in that a plurality of support members 12a are provided at one or both sides of the path of each of the vibration stabilizing parts 12 so as to bend and protrude upward or downward to adhere to the upper surface of the vibration fixing part 12. [ The fixing force to the diaphragm 2 is increased by expanding the portion to be adhered and fixed while being supported in contact with the inner surface of the diaphragm 2 or the edge 2 ' The suspension 10 itself and the diaphragm 2 are prevented from being twisted to thereby prevent the distortion of the sound during vibration.

The stress dispersing member 13a is provided at both ends of the vibration driving unit 13 in the form of a curved slit so that stresses are exerted at both ends connected to the case fixing unit 11 and the vibration weight fixing unit 12, It is possible to prevent the connecting portion of the vibration driving portion 13 or the vibration driving portion 13 itself from being damaged such as being torn or deformed during the vibration (driving) process, thereby improving the reliability and durability of the suspension .

1 is an exploded perspective view showing a configuration and an application example according to an embodiment of the present invention;
2 is a perspective view showing a configuration according to an embodiment of the present invention;
3 is a plan view showing a configuration according to an embodiment of the present invention;
4 is a plan view showing another configuration according to an embodiment of the present invention;
5 is a cross-sectional view showing a configuration and an operation state according to an embodiment of the present invention;
6 is a partial plan view showing an operating state according to an embodiment of the present invention;
7 is a plan view showing a configuration according to the second embodiment of the present invention;
8 is a plan view showing a configuration according to two embodiments of the present invention;
9 is a plan view showing an operating state according to two embodiments of the present invention.
10 is a plan view showing a configuration according to the third embodiment of the present invention;
11 is a plan view showing a configuration according to four embodiments of the present invention.
12 is a perspective view showing a configuration according to a fifth embodiment of the present invention;
13 is a plan view showing a configuration according to the sixth embodiment of the present invention.
14 is a partial perspective view showing a configuration according to a seventh embodiment of the present invention;
15 is a partial perspective view showing the configuration according to the eighth embodiment of the present invention;

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

As shown in FIGS. 1 to 3, a suspension 10 of a speaker 100 is divided into a plurality of divided paths electrically separated from each other, A case fixing part 11 fixed to the upper surface of the case 20 to conduct a +/- alternate signal applied from the outside; A fixing member 11a provided on one side or both sides of the path of each of the case fixing portions 11 to provide a fixing force while being fitted or guided in the case 20; A vibration fixing part 12 provided at the center of each of the divided case fixing parts 11 so as to be spaced apart from each other and providing a fixing surface of the diaphragm 2 and the coil 1 to the upper and lower parts respectively; The diaphragm 2 or the edge 2 'is provided at a part of the divided path of the vibration fixing part 12 which is in contact with the inner surface of the diaphragm 2 or the edge 2' A support member 12a; A vibration driving unit 13 for connecting the partition fixing paths of the case fixing unit 11 and the vibration fixing unit 12 to provide a vibration driving path; And a stiffness adjusting section 13b having a width changing section provided on the path of the vibration driving section 13 and capable of adjusting the elastic force of the vibration driving section 13. [

In addition, the present invention may further include a stress dispersing member (13a) provided at both ends of the vibration driving unit (13) in the form of curved slits to disperse the concentration of stress at the time of vibration.

For reference, the adjustment of the elastic force refers to a modification of the shape to adjust the amplitude of the vibration driver 13, which means that the elastic modulus of the suspension is changed.

In addition, when the vibration occurs, the stress acts on the both ends of the vibration driving part 13 to deform the shape of the mold while the both ends of the vibration driving part 13 are connected to each other (the part where the vibration driving part starts) The force for maintaining the fixed state and the planar state is applied to the vibrating body 11 and the vibrating body 12, and the stress is the force.

The speaker 100 according to the present invention vibrates the diaphragm 2 while interacting with the alternating signal (+ signal, - signal) applied to the coil 1 and the magnetic field of the magnetic circuit 3, For example.

The speaker may be circular or a rectangular (track-type) speaker having a major axis and a minor axis.

In the above, the coil 1 may be a circular coil, a track coil (oval coil), or a square winding coil having a terminal of two or four strands (four coil).

In this case, when the coil 1 is a track type, a single coil is provided to correspond to a central portion of the rectangular vibration plate 2 (substantially, in the center of the vibration fixing part 12 to which the vibration plate 2 is fixed) A plurality of, for example, two or more coils are provided correspondingly to the rectangular vibration plate 2 at intervals (practically, a space is provided in the vibration fixing part 12 to which the vibration plate is fixed, To be fixed). In the present invention, a circular coil having two spaced apart coils is shown and described by way of example.

The diaphragm 2 is a rectangular diaphragm having a circular shape or a major axis and a minor axis. The diaphragm 2 has an outer peripheral surface adhered and fixed to the upper surface of the vibrating body fixing portion 12, (Edge) 2 ', which induces smooth vibration of components (cone paper, diaphragm, etc.) that directly cause the flow of air, and restores the original state after vibration, may be further coupled to the outer periphery.

The magnetic circuit 3 includes a hollow yoke 3a having one side opened and a magnet stacked body 3b composed of a magnet and a top plate fixed to the inner center of the yoke 3a with an inner diameter of the yoke at an interval, ≪ / RTI > At this time, the magnet stacked body 3b may be a stacked top plate for concentrating magnetic force on the magnet top surface generating magnetic force.

At this time, the magnetic circuit (3) is satisfied if it has a structure in which a gap is formed between the yoke (3a) and the magnet stacked body (3b).

Meanwhile, in the present invention, the case fixing part 11 is a divided path made of a conductor electrically separated on one main surface, and a + terminal surface 11b, which is an external terminal for providing an alternating signal, Terminal surface 11b and the terminal surface 11c may be formed to have different shapes (shapes and sizes) in order to prevent cross-talk.

In the above, crosstalk refers to crosstalk during assembly and crosstalk due to electrical connection when the finished product is applied.

When the case fixing part 11 is circular, it can be divided into two to four, and when the case fixing part 11 is rectangular, it can be divided into two in parallel along the major axis direction.

At this time, when the case fixing part 11 is circular and divided into two, one of the divided paths is provided with a + terminal surface 11b which is an external terminal for providing an alternate signal, and the other is provided with a terminal surface 11c, Can be provided.

When the case fixing part 11 is circular and divided into two parts, two of the divided paths are provided with a + terminal surface in an electrically connected state and a terminal surface 11c is provided in the remaining one divided path .

In the case where the case fixing part 11 is circular and divided into four parts, the adjacent two of the divided paths are provided with a + terminal surface in an electrically connected state, and the remaining two divided paths are also electrically connected, (11c) may be provided.

When the case fixing portion 11 is a rectangular shape, a dividing path is provided parallel to the major axis direction, and both ends of the dividing paths are changed in the direction of the divided paths corresponding to each other at the maximum right angle or obtuse angle, The + terminal face 11b and the - terminal face 11c may be separately provided in the extended state.

In the present invention, the case fixing part 11 is illustrated and described by applying a rectangular shape as an embodiment.

On the other hand, in the present invention, the fixing member 11a is provided on one side or both sides of each of the split paths of the case fixing portion 11 (any one of the inward side and the outward side of the divided path of the case fixing portion 11) One or both of the inner side side and the outer side side of the divided path of the case fixing portion 11) The entire body may be bent downward or upward. In the present invention, a part of one side (outward direction) of each of the divided paths of the case fixing part 11 is bent and downwardly formed at intervals with an interval.

At this time, when the case fixing portions 11 are provided in parallel with the case fixing portions 11 being arranged in parallel, the fixing members 11a are positioned on the case fixing portions 11 so as not to be located on the same parallel lines of the respective divided paths of the case fixing portions 11, The fixing surface of the vibration plate 20 and the coil 1 and the fixing surface of the diaphragm 2 may not be reversed and may be guided to be always positioned in a constant direction while the polarity is not reversed have.

The distal end of the fixing member 11a may be inclined and narrowed (trapezoidal) so as to be smoothly inserted into the groove 21 formed in the case 20. The distal end of the fixing member 11a may be provided with a stopper bent in a " V "shape so as to be inserted into the groove 21 formed in the case 20 and then fastened.

The vibration fixing unit 12 of the present invention includes a coil fixing surface 12 'having a divided circular conductor path to which the coil 1 is fixed, and a coil fixing surface 12' having the same diameter as the coil fixing surface 12 ' And a split path electrically connected to each of the divided coil fixing surfaces 12 'having a diameter larger than that of the coil fixing surface 12', wherein each split path includes a positive polarity path portion of the case fixing portion 11 - the diaphragm fixing surface 12 "separated by the vibration driving portion 13 and connected to each of the polar path portions.

The vibration fixing unit 12 includes a coil fixing surface 12 'having a divided circular or rectangular conductor path to which the coil 1 is fixed and a plurality of coil fixing surfaces 12' And the diaphragm (2) is extended, and the diaphragm (2) is fixed. Each of the divided paths is divided into a positive polarity portion and a negative polarity portion path of the case fixing portion (11) through a vibration driving portion And a diaphragm fixing surface 12 "connected thereto.

The coil fixing surface 12 'of the vibration fixing part 12 may be located on the same horizontal surface as the vibration plate fixing surface 12' 'or may be positioned with a step to facilitate the adhesion, and the coil fixing surface 12' The diaphragm fixing surface 12 "

The vibration fixing unit 12 may have a rectangular shape, and may have a pair of left and right sides. For example, the pair of left and right coil fixing surfaces 12 'are spaced apart from each other , The diaphragm fixing surface 12 '' may have a center axis at a position longer than the center axis distance of the coil fixing surface 12 '.

As described above, according to the present invention, the vibrating and stabilizing part 12 will be described with reference to a rectangle as one embodiment.

The support member 12a of the present invention is partly raised upward at a portion of each of the vibrating body fixing portions 12 that is in contact with the bottom edge of the diaphragm 2 or the edge 2 ' Or may be formed such that the entire portion thereof is bent upwardly along a portion contacting with the lower edge.

In an embodiment of the present invention, the upper portion of the diaphragm 2 is partially bent upwardly along a portion contacting the inner surface thereof.

The vibration driving unit 13 of the present invention is connected to the middle portion of the vibration fixing unit 12 by a path extending between the vibration fixing unit 12 and each of the divided paths of the case fixing unit 11, It may be a conductor.

1 to 3, the stiffness adjusting unit 13b may be provided on both sides of the path of the vibration driving unit 13 so that the grooves intersect with each other in a staggered manner with an interval therebetween have.

As shown in Fig. 4A, the rigidity adjusting portion 13b may be provided on both sides of the path of the vibration driving portion 13 in the form of grooves spaced on the same line, As shown in Fig. 4 (B) and Fig. 4 (C), grooves may be provided only at one side or the other side of the path of the vibration driving unit 13.

The stress dispersing member 13a in the present invention is provided at the connection end portion of each of the vibration driving portions 13 connecting the case fixing portion 11 and the vibration weight fixing portion 12, Or may be formed by drilling a connecting end corner portion of the vibration driving portion 13 in the form of a groove (triangle, rectangle (inclusive of trapezoid), etc.) of the vibration driving portion 13 to form a stress dispersing portion or a central portion of the connecting end is perforated to disperse stress .

Hereinafter, the operation according to one embodiment of the present invention will be described.

5, the electric alternating signals applied to the coil 1, that is, the + signal and the - signal, vibrate the diaphragm 2 while the magnetic field of the magnetic circuit 3 interacts with each other , A sound signal is output.

That is to say, the case fixing part 11 and the vibration fixing part 12 are made to be the same body in a state where the vibrating body composed of the coil 1 and the diaphragm 2 is fixed to the lower surface and the upper surface of the vibrating body fixing part 12 And vibrates due to the elastic support of the vibration driving unit 13 to be connected.

At this time, the diaphragm 2 or the edge portion of the diaphragm 2 ', which is adhered and fixed to the upper surface of the vibrating body fixing portion 12, is securely fixed while being supported by the supporting member 12a, So that it is firmly fixed and prevented from being twisted during vibration.

A supporting member 12a is provided at one side or both sides of the dividing path of each of the vibration stabilization parts 12 so as to be bent and projected upward to be adhered and fixed to the upper surface of the vibration fixing part 12. [ The fixing force to the diaphragm 2 is increased by expanding the portion where the diaphragm 2 is adhered and fixed while being supported on the inner surface of the diaphragm 2 or the edge 2 ' Thereby preventing distortion of the sound during vibration.

At this time, the fixing member 11a provided in the case fixing part 11 is formed by a side wall of the case fixing part 11, (Or any one or both of the inner side and the outer side of the path of the case fixing portion 11) and is provided with a groove formed in the upper surface of the case 20 on which the case fixing portion 11 is seated and fixed Thereby increasing the fixing force to the case 20 and reinforcing the degree of warpage of the case fixing portion 11 to improve the robustness.

At this time as well, the fixing member 11a is provided at one side of the partitioning path of each case fixing portion 11 (the side in the outward direction of the path of the case fixing portion 11) And a portion where the case fixing portion 11 is fitted and fixed to the inner diameter of the step portion of the long shaft formed on the upper surface of the case 20 on which the case fixing portion 11 is seated and fixed is provided.

At this time, as shown in Fig. 5C, the fixing member 11a is provided at one side of the partitioning path of each case fixing portion 11 (the side of the path of the case fixing portion 11 in the outward direction) A bending protrusion is provided downward to provide a portion to be fitted and fixed by being adhered to the upper edge inner diameter of the vibration space (deep groove in the major axis) formed at the center of the upper surface of the case 20 to which the case fixing portion 11 is seated and fixed .

As described above, when the vibration driving unit 13 vibrates up and down, the stiffness adjusting unit 13b is provided on the path of the vibration driving unit 13 according to the present invention. As shown in FIG. 6, The elastic strength of the vibration driving portion 13 is controlled by adjusting the width and the total area by forming grooves in the vibration driving portion 13 of a spring shape (adjusting the elastic constants of the springs by adjusting the intervals and the number of the grooves) .

In this case, a width changing section such as a concave-convex structure may be formed on the path of the vibration driving section 13 as an application requiring an increase in the amplitude of the speaker 20 by increasing the displacement of the suspension 10, The width of the speaker can be narrowed or wider than the width of the both ends to be used for a speaker, particularly for a speaker requiring a low sound output, whereby a wide sound reproduction band can be ensured and excellent output characteristics can be obtained. In addition, by controlling the elastic constant of the spring to control the stiffness, it is possible to cope with various output characteristics of a speaker required.

The stress dispersing member 13a is provided in the form of a curved slit when the vibration driving unit 13 vibrates and moves up and down as described above and is connected to the case fixing unit 11 and the vibration fixing unit 12 during vibration By dispersing the concentration of stress on both ends, it is prevented that the connecting portion is torn or deformed by frequent vibration.

Hereinafter, other embodiments of the present invention will be described.

As shown in FIGS. 7 to 9, the second embodiment of the present invention may be such that the path of the vibration driving unit 13 gradually becomes narrower or wider as it goes to the central portion, It may gradually become narrower.

This makes it possible to increase the displacement of the suspension 10 and to apply it to a speaker 20 which is used as an application requiring an expansion of amplitude, A reproduction band can be ensured, and excellent output characteristics can be obtained.

As described above, by selectively processing the width of the intermediate portion of the path of the vibration driving portion 13 as narrower or wider than the width of both ends as necessary, the elastic constant of the spring is controlled to control the rigidity, Thereby making it possible to cope with the output characteristics of the speaker.

10, a case fixing part (not shown) having a main surface divided in the horizontal direction and parallel to the major axis in a state in which the divided paths are electrically separated from each other 11 are cut off from each other in the vertical direction and are separated from each other on the basis of the horizontal direction and are separated from each other in a horizontal direction, ) May be formed by electrically connecting a pair of left and right sides.

As a result, the supporting force of the diaphragm 2 can be further increased, and the diaphragm 2 can be prevented from being warped.

In the fourth embodiment of the present invention, as shown in FIG. 11, one end of the vibration driving portion 13 is connected to one side portion of the case fixing portion 11 in the parallel long axis direction, May be connected to the curved end portion of the vibrating body fixing portion 12 to which the front end in the longitudinal direction of the diaphragm 2 is adhered and fixed.

Unlike the embodiment of the present invention in which the vibration driving part 13 elastically supports the vibrating body part at both ends in the longitudinal direction of the case fixing part 11 at the time of vibration, The both ends of the vibrating body are elastically supported on both sides of the case fixing part 11, so that the vertical vibration width (vibration range) can be maximally provided without being restricted by the vibration.

12, the vibration driving unit 13 includes a portion that is offset from one of the parallel case fixing portions 11 in the major axis direction, (13 ') for connecting one end of the casing fixing part (11) and the other end part of the casing fixing part (11) 12), and the structure may be made symmetrical in the left-right direction.

The bullet carcinoma 1 (13 ') may be a single or a plurality depending on the space.

In this case, in supporting the vibration of the diaphragm 2 of the long axis, the long axis direction can be stably supported and the diagonal force of the diaphragm 2 can be increased.

In the sixth embodiment of the present invention, as shown in FIG. 13, the left and right sides of the vibrating body fixing portion 12 are connected to each other, and in a state of having one main surface (both ends electrically separated) (13 ') for connecting the portion of the parallel case fixing portion (11), which is positioned on one side of the longitudinal direction of each of the parallel case fixing portions (11), and the intermediate portion of the vibration fixing portion (12), and a case fixing portion One pair of bullet-shaped arms 2 " (13 ") connecting the respective distal end portions of the direction-reversing direction of the opposite case fixing portions 11 and the other side portion of the vibration- The structure may be made symmetrical.

At this time, since the bullet car 1 (13 ') is symmetrical in the left and right direction, one end is integrally connected to the middle part of the vibration stabilization part 12.

In this case, in supporting the vibration of the diaphragm 2 of the long axis, the long axis direction can be stably supported and the diagonal force of the diaphragm 2 can be increased.

In the seventh embodiment of the present invention, as shown in FIG. 14, the case fixing portion 11 and the vibration fixing portion 12 are formed in circular or elliptic Track-shaped or rectangular-shaped through-hole 11d may be formed. In the present invention, a circular through hole shape is applied and illustrated and described in one embodiment.

If the coil 1 and the diaphragm 2 are brought into close contact with each other while the adhesive is applied to the upper surface of the vibrating body fixing part 12, the adhesive penetrates into the through hole 11d, And is cured in a state of overflowing in the other direction of the adhesive layer 12, so that the adhesive bonding is firmly performed.

When the case fixing part 11 is seated with the adhesive applied to the upper surface of the case 20, the adhesive penetrates into the through hole 11d, And is hardened in a flowed state, so that a firm adhesion fixation is achieved.

15, an eighth embodiment of the present invention is characterized in that either one of the both ends connecting the case fixing part 11 of the vibration driving part 13 and the vibrating weight fixing part 12, It is also possible to provide a buffer 14 for delaying the vibration while preventing the vibration force from being directly transmitted to one portion.

The buffer 14 may be formed of wrinkles such as a wavy shape or a saw tooth shape.

In this case, since the operation of directly transmitting the vibration power to either the end portion or the both end portions connecting the case fixing portion 11 and the vibrating body fixing portion 12 is repeated, the corresponding portion is staggered or deformed .

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: Suspension 11: Case fixing part
11a: Fixing member 11b: + terminal
11c: - terminal 11d: through hole
12: Vibrating body 12a: Support member
12 ': coil fixing surface 12'': diaphragm fixing surface
13: Vibration drive unit 13a: Stress distribution means
13 ': Elastic 1 13 ": Elastic 2
14: buffer 1: coil
2: diaphragm 3: magnetic circuit
3a: yoke 3b: magnet
20: Case 21: Home
100: Speaker

Claims (11)

In the suspension 10 of the speaker 100,
(11) fixed along the longitudinal direction of the upper surface of the case (20) while being electrically separated from and parallel to each other and conducting a +/- alternate signal applied from the outside; A vibration fixing unit 12 provided with a path diverged with the gap between the case fixing units 11 and provided with a vibration plate 2 and a fixing surface of the coil 1 on the upper and lower sides respectively; A vibration driving unit 13 for providing a vibration driving path while connecting the divided case fixing unit 11 and the vibrating body fixing unit 12; And a stiffness adjusting section (13b) provided on the path of the vibration driving section (13) and adapted to adjust the elastic force of the vibration driving section (13). In the suspension 10 of the speaker 100,
(11) fixed along the longitudinal direction of the upper surface of the case (20) while being electrically separated from and parallel to each other and conducting a +/- alternate signal applied from the outside; A fixing member 11a provided at one side or both sides of the path of each of the case fixing portions 11 to provide an adhesive fixing portion to be fitted into the case 20; A vibration fixing unit 12 provided with a path diverged with the gap between the case fixing units 11 and provided with a vibration plate 2 and a fixing surface of the coil 1 on the upper and lower sides respectively; A support member provided at a portion of the path of each of the vibration stabilizing portions 12 that is in contact with the inner surface of the projected edge 2 'of the diaphragm 2 and which provides an adhesive fixing portion while supporting the edge 2'12a); A vibration driving unit 13 for providing a vibration driving path while connecting the divided case fixing unit 11 and the vibrating body fixing unit 12; And a stiffness adjusting section (13b) provided on the path of the vibration driving section (13) and adapted to adjust the elastic force of the vibration driving section (13). In the suspension 10 of the speaker 100,
(11) fixed along the longitudinal direction of the upper surface of the case (20) while being electrically separated from and parallel to each other and conducting a +/- alternate signal applied from the outside; A fixing member 11a provided at one side or both sides of the path of each of the case fixing portions 11 to provide an adhesive fixing portion to be fitted into the case 20; A vibration fixing unit 12 provided with a path diverged with the gap between the case fixing units 11 and provided with a vibration plate 2 and a fixing surface of the coil 1 on the upper and lower sides respectively; A support member provided at a portion of the path of each of the vibration stabilizing portions 12 that is in contact with the inner surface of the projected edge 2 'of the diaphragm 2 and which provides an adhesive fixing portion while supporting the edge 2'12a); A vibration driving unit 13 for providing a vibration driving path while connecting the divided case fixing unit 11 and the vibrating body fixing unit 12; A stiffness adjusting section 13b provided on the path of the vibration driving section 13 and having a width changing section to adjust the elastic force of the vibration driving section 13; And a stress dispersing member (13a) provided in the form of a curved slit at both ends of the vibration driving unit (13) and dispersing the concentration of stress at the time of vibration. The method according to claim 1 or 2 or 3,
The case fixing part 11 is a divided path made of a conductor electrically separated on one main surface, and a + terminal surface 11b serving as an external terminal for providing an alternating signal is provided in any one of the divided paths, - terminal surface (11c) is provided, and the + terminal surface (11b) and the - terminal surface (11c) are formed in different shapes to prevent confusion. 3. The method according to claim 2 or 3,
The fixing member 11a is bent and protruded downward at one side or both sides of the path of each of the case fixing parts 11 so that the case fixing part 11 is bent and protruded downwardly in the groove formed in the upper surface of the case 20 Or the case fixing part 11 is bent and projected upwardly at one side of the partitioning path of each of the case fixing parts 11 so that the case fixing part 11 is fixed to the case 20, And the case fixing portion 11 is fixed to the case fixing portion 11 so that the case fixing portion 11 is seated on the upper surface side of the case 20 in which the case fixing portion 11 is seated and fixed, Is fitted and adhered to the upper edge inner diameter of the vibrating space formed on the upper surface of the housing. The method according to claim 1 or 2 or 3,
The vibration stabilizing part 12 includes a coil fixing surface 12 'having a divided circular conductor path to which the coil 1 is fixed and a coil fixing surface 12' having the same diameter or coil fixing surface 12 ' , And each divided path is electrically connected to each of the positive polarity path portion and the negative polarity path portion of the case fixing portion 11, And a diaphragm fixing surface (12 ") divided and connected through a vibration driving unit (13). 3. The method according to claim 2 or 3,
The support member 12a may be partly upwardly bent or protruded at a portion of each of the paths of the vibrating body fixing unit 12 that is in contact with the lower edge of the diaphragm 2 or the edge 2 ' Is bent upwardly. The method according to claim 1 or 2 or 3,
The vibration driving unit 13 is a conductive member extending from the vibration fixing unit 12 to each of the divided paths of the case fixing unit 11 and connected to the middle portion of the vibration fixing unit 12. [ Suspension of the speaker. The method according to claim 1 or 2 or 3,
The rigidity adjusting part 13b is provided on both sides of the path of the vibration driving part 13 in a manner that the grooves are provided on the same line with an interval therebetween or the groove is provided only on one side or the other side of the path of the vibration driving part 13 Or one in which the path of the vibration driving part 13 gradually becomes narrower or wider as it goes to the center part or the path of the vibration driving part 13 becomes gradually narrower from one side to the other side Features a suspension of speakers. The method of claim 3,
The stress dispersing member 13a is provided at a connecting end portion of each of the vibration driving portions 13 connecting the case fixing portion 11 and the vibration fixing portion 12, Wherein a stress dispersing portion is formed by digging the connecting end corner portion of the driving portion (13), or a central portion of the connecting end is perforated to disperse the stress. The method according to claim 1 or 2 or 3,
A through hole 11d formed in each path of the case fixing part 11 and the vibrating body fixing part 12 so as to penetrate the adhesive with an interval therebetween in a circular or rectangular shape (track type) or a square shape, Characterized by further comprising a buffer (14) for delaying the transmission of vibrational force to either the end portion or both ends of the case fixing portion (11) and the oscillating weight fixing portion (12) .

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