Patent Translate Powered by EPO and Google Notice This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate, complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or financial decisions, should not be based on machine-translation output. DESCRIPTION JP2004312599 The present invention relates to a speaker used for various audio devices, and it is an object of the present invention to provide a speaker with high performance by reducing non-linearity and asymmetry to reduce harmonic distortion. A speaker according to the present invention is provided with a suspension holder 17 for coupling an inner periphery of a voice coil 13 closer to a magnetic circuit 12 than a diaphragm 15 of the voice coil 13. A first edge 15a of the diaphragm 15 and the suspension holder The non-linearity and asymmetry of the entire suspension are eliminated by the 17 second edges 17 a to reduce harmonic distortion and to improve the power linearity to achieve high performance of the speaker, and the suspension holder 17. The gold wire can be held by the groove provided in the to enable a direct lead system, and also the number of assembling steps of the speaker can be reduced. [Selected figure] Figure 1 スピーカ BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker used for various acoustic devices and the like. 2. Description of the Related Art A conventional speaker is configured as shown in FIG. That is, the conventional speaker includes a magnetic circuit 1, a voice coil 4 in which at least a coil portion 3 is movably provided in a magnetic gap 2 of the magnetic circuit 1, and a magnetic gap 2 of the voice coil 4. The outside portion is configured to include the diaphragm 5 whose inner periphery is connected, and the frame 7 whose outer periphery of the diaphragm 5 is connected via the edge 6. That is, when an electric signal output from an audio amplifier or the like is input to the voice coil unit 3 of the voice coil 4, the voice coil 4 is excited, and the exciting force is transmitted to the diaphragm 5 to vibrate. The plate 5 vibrates the air to convert the electric signal into sound. The abovementioned example of the conventional speaker is very general, and is also described in Patent 12-05-2019 1 Document 1 as a prior art. Patent Document 1: Japanese Patent Application Laid-Open No. 200337894 SUMMARY OF THE INVENTION In the above-mentioned prior art, the voice coil portion 3 of the voice coil 4 and the inner periphery fixing portion of the diaphragm 5 And the outer periphery of the damper 8 is fixed to the frame 7. The damper 8 constitutes a suspension together with the edge 6 to prevent the voice coil 4 from rolling when moving. Further, the damper 8 has a configuration in which a plurality of waveforms are combined so as not to be a movable load of the voice coil 4 as much as possible. However, in the performance enhancement of the speaker in recent years, the existence of the damper 8 causes a big problem. That is, the non-linearity and the asymmetry of the movable load of the damper 8 are large in the behavior of the voice coil 4 toward the magnetic circuit 1 and the behavior toward the opposite side of the magnetic circuit 1, and harmonic distortion caused thereby. At the same time, the power linearity was to deteriorate. In order to solve the problems of power linearity deterioration and harmonic distortion characteristics caused by such non-linearity and asymmetry, there have conventionally been various devices for solving the non-linearity and asymmetry of the damper 8. Although attempts have been made, as described above, since the damper 8 is formed by combining a plurality of waveforms so as to reduce the movable load, it is possible to combine the damper 8 and the edge 6 to form a suspension, It is difficult to reduce harmonic distortion by solving nonlinearity and asymmetry, and at present it is not possible to improve the performance of speakers. Therefore, the present invention aims to improve the performance of the speaker. [0011] The invention of the speaker according to claim 1 of the present invention for achieving this object is a magnetic circuit having a magnetic gap, and the magnetic gap of the magnetic circuit. A voice coil in which at least the coil portion is movably provided, a diaphragm in which an inner periphery is connected to an outer portion of the magnetic gap of the voice coil, and an outer periphery of the diaphragm has a first edge The inner periphery of the suspension holder is connected to the magnetic circuit side of the voice coil of the voice coil of the speaker connected via the frame, and the outer periphery of the suspension holder is connected to the frame via the second edge And the first and second edges are suspended by the first edge and the second edge as a substantially symmetrical similar shape bordering the first and second edges. In addition to eliminating the damper that causes the non-linearity and asymmetry of the suspension, the first edge and the second edge can cancel their own asymmetry, and the non-linearity of the suspension can be eliminated. The nature and the asymmetry can be fundamentally solved, which can reduce the harmonic distortion and the power linearity of the loudspeaker and can improve the performance of the loudspeaker. Further, by providing a groove for sandwiching the gold wire connecting the voice coil and the terminal in a direction substantially normal to the suspension holder, the gold wire can be stably arranged and a direct lead system can be realized. is there. According to a second aspect of the present invention, there is provided a speaker according to a second aspect of the present invention, comprising: a magnetic circuit having a magnetic gap; and a voice coil having at least a coil portion movably provided in the magnetic 12-05-2019 2 gap of the magnetic circuit. A diaphragm having an inner periphery thereof connected to a magnetic gap outer portion of the voice coil, and a frame having an outer periphery of the diaphragm connected via a first edge, the vibration of the voice coil The inner periphery of the suspension holder is connected to the magnetic circuit side from the plate, and the outer periphery of the suspension holder is connected to the frame via the second edge, and the first and second edges are the first and second edges. The diaphragm and the suspension holder are joined at their middle portions and have a substantially symmetrical similar shape at the boundary between the two edges, and the first edge and the suspension holder. Configuring the suspension with the second edge eliminates the dampers that cause non-linearity and asymmetry of the suspension, while the first edge and the second edge are arranged to cancel their own asymmetry As a result, the non-linearity and the asymmetry of the suspension can be fundamentally solved, and the harmonic distortion reduction and the power linearity of the loudspeaker resulting therefrom can be improved to improve the loudspeaker performance. Further, by connecting the diaphragm and the suspension holder at their middle portions, the phases of the both can be matched, and the frequency characteristics of the mid-low range can be flattened. Further, by providing a groove for sandwiching the gold wire connecting the voice coil and the terminal in a direction substantially normal to the suspension holder, the gold wire can be stably arranged and a direct lead system can be realized. . According to a third aspect of the present invention, in the speaker according to the first or second aspect, the inner peripheral portion of the suspension holder is provided with a notch so that a gold thread wire and a voice coil bobbin are provided. The direct lead system is easily realized by avoiding the interference with the fixed part. According to a fourth aspect of the present invention, in the speaker according to the first and second aspects, the protrusion is provided on both sides of the groove for sandwiching the gold wire of the suspension holder, thereby facilitating the improvement. It realizes the direct read method. According to a fifth aspect of the present invention, in the loudspeaker of the fourth aspect, the projections provided on both sides of the groove for sandwiching the gold wire of the suspension holder are substantially in the normal direction of the suspension holder. On the other hand, the direct reading method can be easily realized by partially providing them. According to a sixth aspect of the present invention, in the speaker according to the fifth aspect, the projection partially provided with respect to the substantially normal direction of the suspension holder is in an asymmetrical position with respect to the groove on the left and right. By providing them, the direct reading method can be easily realized. According to a seventh aspect of the present invention, in the loudspeaker according to the first or second aspect, the gold wire and the voice coil bobbin are formed by providing a notch in the inner peripheral portion of the diaphragm. It prevents interference with the fixed part and easily realizes a direct lead system. According to an eighth aspect of the present invention, in the loudspeaker according to the seventh aspect, the notch is provided only in the neck portion along the voice coil bobbin of the diaphragm, thereby facilitating direct connection. It realizes the lead system. BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present 12-05-2019 3 invention will be described below with reference to FIGS. 1 to 8. First Embodiment FIG. 1 is a cross-sectional view of a speaker according to a first embodiment of the present invention, and FIG. 2 is a perspective view of a suspension holder which is the main part of the present embodiment. The claim 1 and the claim 2 will be described. According to the drawing, reference numeral 12 denotes a magnetic circuit having a magnetic gap 12 a, and 13 denotes a voice coil in which at least the coil portion 14 is movably provided in the magnetic gap 12 a of the magnetic circuit 12. There is a diaphragm 15 whose inner periphery is connected to the magnetic gap outer part of the voice coil 13, and a frame 16 is the outer periphery of the diaphragm 15 connected via the first edge 15a. A suspension holder 17 is connected to the inner periphery of the voice coil 13 from the diaphragm 15 to the magnetic circuit 12 and the outer periphery is connected to the frame 16 through a second edge 17a. A groove 21 for sandwiching a gold wire 20 connecting the voice coil 13 and the terminal 19 in a direction substantially normal to 17 is provided. The suspension holder 17 is mainly made of pulp and resin, which have both high rigidity and internal loss. Also, although the second edge 17 a couples the outer periphery of the suspension holder 17 to the frame 16, the movable load of the suspension holder 17 is the same as the first edge 15 a reduces the movable load of the diaphragm 15. Materials such as urethane and rubber, cloth are used to reduce the Furthermore, the first edge 15 a protrudes in the direction of the magnetic circuit 12, and the second edge 17 a protrudes in the opposite direction of the magnetic circuit 12, and the first and second edges 15 a and 17 a border the middle thereof The shape is approximately symmetrical and similar. Further, since the suspension by the suspension holder 17 and the second edge 17 a is provided between the voice coil 13 and the frame 16 instead of the conventional damper, the suspension holder 17 and the second edge 17 a A suspension is constituted by the edge 15a of 1 and the rolling at the time of movement of the voice coil 13 is suppressed. By configuring the suspension as described above, it is possible to eliminate the damper which causes the non-linearity and asymmetry of the suspension, and the first edge 15 a and the second edge 17 a Since they have a substantially symmetrical similar shape so as to cancel their asymmetry, specifically, the first edge 15a and the second edge 17a are disposed opposite to each other so that the projecting directions are opposite to each other. It is possible to solve the non-linearity and asymmetry of the suspension. Furthermore, since the suspension holder 17 has a groove 21 for sandwiching the gold wire 20 connecting the voice coil 13 and the terminal 19 in the substantially normal direction, the gold wire 20 as described above. Is embedded in and fixed to the groove 21 of the suspension holder 17 so that it is fixed to the suspension holder 17 when assembled in the manufacturing process or even before the diaphragm 15 is fixed, and the position is stable and easy It becomes possible to assemble in the lead system. Further, since the gold wire 20 is mechanically held, the direct lead system can be realized stably in terms of quality. Further, in the present embodiment, although the diaphragm 15 and the 12-05-2019 4 suspension holder 17 are coupled to each other at their middle portions, this allows the phases of both to be matched, and the mid-low range due to this. Can flatten the frequency characteristics of H. It is possible to provide a higher performance speaker. Needless to say, when the diaphragm 15 and the suspension holder 17 are not coupled at the intermediate portion as described above, the above-described effects can be obtained except for the phase matching and the effects thereof. Second Embodiment Another embodiment of the present invention will be described with reference to FIG. The same parts as in the first embodiment will be assigned the same reference numerals, and the description thereof will be omitted to mainly describe claim 3. FIG. 3 is a perspective view of a suspension holder which is an essential part of another embodiment of the present invention. The difference between the present embodiment and the first embodiment is only the suspension holder, and the configuration will be described with reference to FIG. 3. 22 is a suspension holder, and the gold wire 20 of the inner peripheral portion and the voice A notch 22b is provided to avoid interference with the fixing portion A (shown in FIG. 1) with the coil 13, and a dust avoiding net and the like are arranged, so that the suspension holder 17 from above the voice coil 13 in the manufacturing process. Even if the construction can not be made without inserting, the direct lead system can be easily realized by passing the notch. Reference numeral 22 a denotes a groove for sandwiching a gold wire 20 connecting the voice coil 13 and the terminal 19 provided in the direction substantially normal to the suspension holder 22. As shown, the groove 22a is provided on the inner peripheral side to the notch 22b, and the gold wire 20 is drawn downward without being interfered by the suspension holder 22 by the coil portion 14. Third Embodiment Another embodiment of the present invention will be described with reference to a perspective view of a suspension holder which is a main part of FIG. The same parts as in the first embodiment will be assigned the same reference numerals, and the description thereof will be omitted to mainly describe claim 4. The difference between the present embodiment and the second embodiment is only the suspension holder, and the configuration thereof will be described with reference to FIG. 4. The suspension holder 23 is a groove provided in the substantially normal direction. By providing projections 23c on both sides of 23a, the gold wire 20 can be held more stably. As shown, the groove 23a is provided on the inner peripheral side up to the notch 23b, and the gold wire 20 is pulled downward without being interfered by the coil portion 14 by the suspension holder 23. Fourth Embodiment Another embodiment of the present invention will be described with reference to a perspective view of a suspension holder which is an essential part of FIG. The same parts as in the third embodiment will be assigned the same reference numerals, and the description thereof will be omitted to mainly describe claim 5. The difference between the present embodiment and the third embodiment is only in the suspension holder 24, and the projections 24 c provided on both sides of the groove 24 a through which the gold wire 20 of the suspension holder 24 passes are partially provided. is there. According to this configuration, even when the shapes of the suspension holder and the diaphragm have various shapes, it is possible to realize the direct lead system while maintaining the holding effect of the gold wire. As shown, 12-05-2019 5 the groove 24a is provided on the inner peripheral side up to the notch 24b, and the gold wire 20 is pulled downward without being interfered by the suspension holder 24 by the coil portion 14. Fifth Embodiment Another embodiment of the present invention will be described with reference to a perspective view of a suspension holder which is an essential part of FIG. The same parts as in the fourth embodiment will be assigned the same reference numerals, and the description thereof will be omitted. The difference between the present embodiment and the fourth embodiment is only in the suspension holder 25, and projections 25 c partially provided on both sides of the groove 25 a through which the gold wire 20 of the suspension holder 25 passes are made with respect to the groove 25 a. It was installed in a place that is not symmetrical. According to the present invention, even if the size of the protrusion 25c is the same as that of the fourth embodiment, since the protrusion 25c is disposed at a position not symmetrical with respect to the groove 25a, the gold wire 20 is detached from the groove 25a. Since the protrusion can be efficiently prevented, more stable speaker assembly can be realized directly by the lead system. As shown, the groove 25a is provided on the inner peripheral side up to the notch 25b, and the gold wire 20 is pulled downward without being interfered by the coil holder 14 with the suspension holder 25. Sixth Embodiment Another embodiment of the present invention will be described with reference to a perspective view of a diaphragm which is a main part of FIG. According to the figure, reference numeral 26 denotes a diaphragm, which is similar to the notches 22 b to 25 b provided on the suspension holders 22 to 25 described in the second to fifth embodiments. A notch 26 a corresponding to the inner circumference of the cylinder 26 is provided. According to this method, since interference with the diaphragm 26 of the fixed portion on the voice coil 13 side of the gold wire 20 can be prevented, the attachment position of the diaphragm 26 can be set low close to the gold wire 20 to directly lead. While realizing the method, it is possible to make the speaker thinner. The diaphragm 26 of this embodiment can be applied to any of the loudspeakers of the second to fifth embodiments described above. Seventh Embodiment The eighth embodiment of the present invention will be described mainly with reference to a perspective view of a diaphragm which is a main part of FIG. The difference between the loudspeakers according to the present embodiment and the sixth embodiment is only the diaphragm, so to describe only the differences, the diaphragm 27 is partially disposed in the vertical portion along the voice coil 13. By providing the notches 27a, it is possible to easily realize the direct lead system and the thinning of the speaker while securing the adhesive strength between the diaphragm and the voice coil and improving the sound quality. According to the speaker of the present invention configured as described above, harmonic distortion of the speaker can be reduced, power linearity can be improved, and the performance of the speaker can be enhanced. Since the direct lead system in which the voice coil and the gold wire are directly joined can be adopted, the number of assembling steps of the speaker can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view of an embodiment of a speaker according to the present invention. FIG. 2 is a perspective view of a suspension holder 12-05-2019 6 which is an essential part of the present invention. 4 is a perspective view of the suspension holder which is the main part of the other embodiment. FIG. 5 is a perspective view of the suspension holder which is the main part of the other embodiment. 6 is a perspective view of a suspension holder which is a main part of the other embodiment. FIG. 7 is a perspective view of a diaphragm which is a main part of the other embodiment. FIG. 8 is a main part of the other embodiment. Fig. 9 is a sectional view of a conventional loudspeaker [Fig. 9] 12 magnetic circuit 12a magnetic gap 13 voice coil 14 coil section 15, 26 and 27 diaphragm 15a first edge 16 frame 17 , 22, 23, 24, Reference Signs List 25 suspension holder 17a second edge 19 terminal 20 gold wire 21, 22a, 23a, 24a, 25a groove 22b, 23b, 24b, 25b notch 23c, 24c, 25c protrusion 26a, 27a notch A fixing portion 12-05-2019 7
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