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 JPS5494232 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 are top views of diaphragms used in planar drive type electroacoustic transducers, and FIGS. 6 is a cross-sectional view showing an embodiment of the electroacoustic transducer of the present invention, FIG. 7 is an exploded perspective view of the main part, and FIG. 8 is a cross-sectional view of the main part FIGS. 9A and 9B are explanatory views of a bayonet part. 3 · · · · · · · Terminal part, 10. 11 · · · · · · · · · · · · · · · · · plate-like Magneat, 15 · · · · · · · · · · · · · · · rivet 17 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · elastic Body, 22 ······· Disk portion, 23 · · · · · · · ························································································ · · · · body · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · body · · · · · · · · · · · · · · · · · · · · body · · · · · · · · · · · · · · · · body · · · · · · · · · · · · · · · · body, 22 · · · · · · · · · · ... The present invention relates to an electroacoustic transducer in which the feeding structure is improved to simplify assembly and confectionery and maintain stable quality. The diaphragm of the recent flat drive type electroacoustic transducer; C41 is configured as shown in FIG. 1 and FIG. Flいる。 That is, a voice coil 2 of a predetermined pattern is formed by a method such as photo etching on gold mW laminated by adhesion or distillation on a diaphragm substrate 1 made of a film of polyester, polyimide or the like with a thickness of several μs to several tens of μm. It is configured. In addition, a terminal portion 3 having a larger area than the voice coil 2 is provided as an external feed 'A' and used as an all connection terminal. In FIG. 1, the terminal portion 3 is provided at the center and the peripheral portion of the diaphragm substrate 1, and in FIG. 2, the terminal portion 3 is formed at the peripheral portion. A conventional electroacoustic transducer using such a diaphragm will be described with reference to FIGS. First, the one shown in FIG. 3 resiliently press-fits the spring member 7 coupled to the case 4 by the screw 6 to the terminal portion 3 of the diaphragm 6 as described above held by the two cases 4. It is made to feed and let it do. J) In this configuration, the spring material 7 needs to use metal made of the same material as the diaphragm 63, the voice coil 2 of the -port and the terminal 12-05-2019 1 portion 3. This is for the prevention of electric corrosion applied to the contact point, but 4j! ! In the case of using an aluminum metal foil that is effective to measure the improvement of the sonotropy characteristics by using it, it can not be used as the spring material 7, and it becomes difficult to select an appropriate material and to perform surface treatment. Further, FIG. 4 shows an electric supply concentrated acid to the terminal portion 3 provided at the center of the diaphragm shown in FIG. The terminal portion 3 of the diaphragm 6 is held by a rivet 8 formed of a metal of the same material as the foil to obtain conduction. In the case of this configuration, there is a risk that the contact surface is difficult to be uniform and uniform even at one o'clock because the state of pressing is metal to metal. 6 shows a configuration in which power is supplied to the terminal portion of the peripheral portion, and the external lead terminal 9) is disposed on the terminal portion 3 of the diaphragm 6 held between the housings 4, The outer periphery of the metal ring 91 is enclosed by a metal ring 91, which is composed of 47,. According to this configuration, since the terminal portion 3 is pressed by the hard external lead terminal 9, the contact surface is unstable, and as a result, the reliability in the pneumatic connection is poor. For this reason, it is necessary to solder the terminal portion 3 and the external lead terminal 9, and it is therefore necessary to use an identifiable metal foil and the external connection terminal 9, and aluminum and the like can not be used. You will receive Thus, the conventional nausea acoustic transducers each have n drawbacks and have not been fully satisfactory. The present invention eliminates the above-mentioned conventional drawbacks. Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 10.11 is a frame-like housing holding a flat magnet 12 provided with a large number of sound emission holes in the center, and this housing 10.11 is tightened with a screw 13 and a nut 14 at several places of the peripheral part. This is connected between the C-port housing 10.11. The @ -moving plate 16 shown in FIG. A rivet 16 made of aluminum of the same material as the metal foil of the diaphragm 16 is coupled to a portion corresponding to the terminal portion 3 & 'c of the diaphragm 15 of the housing 11 disposed on the lower side. The lower end is connected to an external lead-out terminal 17 which can be soldered. 1え、よ、1. Yu 0, 1. , Sue. A hole 18 is formed in a portion corresponding to the portion 7- and a) 41): J-hole portion 41. The upper end of the through-hole 18 is a shape that passes through the center of the through-hole 18 A long hole 19 is formed, and a broken locking portion 20 is formed in the lower part by a crystal that is continuous with the long hole 19. That is, the long hole 19 and the locking portion 20 constitute a bayonet. An elastic material 21 such as a foam material such as urethane foam, neovinyl rubber, silicone rubber, butyl rubber, etc. is inserted into the through hole 18, and a projecting piece is formed on the opposing circumferential portion of the disc portion 22 on the elastic body 21. A presser plate 24 is disposed with a protrusion 23-1 and -1 projected, the presser plate 24 is fitted into the long hole 19 with the projection 23 fitted, and the presser plate 24 is pressed into the through hole 18. Then, the pressure plate 24 is rotated to fit the protrusion 23 to the retaining portion 2o, and the first elastic body 21 is pressed and deformed to be in 12-05-2019 2 pressure contact with the back surface of the terminal portion 3 of the diaphragm 15. The terminal portion 3 is uniformly pressed against the rivet 16 to ensure the morbid conductivity. As described above, since the electroacoustic transducer according to the present invention is configured, the contact between the terminal portion of the transmission plate and the vent becomes reliable and stable, and the voice coil formed on the diaphragm and the metal of the terminal portion It is also possible to use sacrificial aluminum as a foil, and it is possible to use aluminum as a rebate, and there is no restriction on these materials, and furthermore, since an elastic body is used, it is possible to use an external body. The vibrational force from the material is absorbed, and furthermore, the surrounding corrosive atmosphere, moisture and other adverse effects on the contact area can be cut off to provide a reliable one, which is of practical value) It is big. 7 12-05-2019 3
© Copyright 2021 DropDoc