Speaker and method of producing the same
A speaker and resin-made technology, applied in the direction of sensors, electrical components, etc., can solve problems such as low sound pressure, magnetic influence, etc., achieve good performance, improve bonding strength, and achieve flattening effects
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Example Embodiment
[0027] (Embodiment 1)
[0028] Hereinafter, the present invention will be described in conjunction with Embodiment 1.
[0029] 1 is a cross-sectional view showing the structure of a speaker manufactured by the speaker manufacturing method according to Embodiment 1 of the present invention. Fig. 2 is a cross-sectional view showing a frame in which a yoke is insert-molded used in the speaker. 3A, 3B, and 3C are respectively a plan view, a front sectional view, and a side sectional view showing a yoke used in the speaker. In FIGS. 1, 2, 3A, 3B, and 3C, the yoke 1 is formed into a rectangular plate shape using a magnetic metal material. In addition, at each corner and long side of the yoke body 1, a tongue-shaped flange portion 1 a is symmetrically provided, and the flange portion 1 a protrudes outward from a position lowered by a predetermined size from the upper end surface of the yoke body 1. By providing the flange at a position lowered by a predetermined size, the yoke body 1 and th
Example Embodiment
[0039] (Embodiment 2)
[0040] Hereinafter, the present invention will be described in conjunction with Embodiment 2.
[0041] In the second embodiment, the structure of the voice coil used in the speaker of the first embodiment is different. Since the structure other than this is the same as that of the first embodiment, the same parts are denoted by the same symbols, and detailed descriptions thereof are omitted. In the following, only the different parts will be described with reference to the drawings.
[0042] 5 is a cross-sectional view showing the structure of a speaker manufactured by the speaker manufacturing method according to Embodiment 2 of the present invention. In FIG. 5, the voice coil 9 is constituted by forming a predetermined pattern of coils in a coiled state on the front and back sides of a resin base material.
[0043]The center of the diaphragm 10 with the edge 10a integrally provided on the outer periphery is coupled to the base material of the voice coil 9 ex
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