JP3812103B2 - Speaker manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a speaker used in various acoustic devices.
[0002]
[Prior art]
A conventional speaker will be described with reference to a speaker with a baffle plate in FIG.
[0003]
According to the figure, reference numeral 1 denotes a magnetic circuit, which is composed of an upper plate 2, a ring-shaped magnet 3 and a lower plate 4. Reference numeral 5 denotes a frame coupled to the magnetic circuit 1, and the outer periphery of the edge portion 7 of the cone-shaped diaphragm 6 is coupled to the periphery of the frame 5.
[0004]
8 is a voice coil whose lower part is fitted in the magnetic gap 1 a of the magnetic circuit 1 and is coupled to the inner periphery of the diaphragm 6 and the outer periphery is also coupled to the inner periphery of the damper 9 coupled to the frame 5. The voice coil 8 is held by the damper 9.
[0005]
Reference numeral 10 denotes a dust cap, which is affixed above the voice coil 8.
Reference numeral 11 denotes a baffle plate in which a gasket and a grill are integrally provided, and a gasket portion 11 a on the outer periphery of the baffle plate 11 is coupled to the outer edge of the edge portion 7 on the frame 5.
[0006]
[Problems to be solved by the invention]
Since the conventional speaker uses the baffle plate 11 in which the gasket and the grill are integrated, a separate process for coupling the diaphragm 6 to the frame 5 is naturally necessary. Like a general speaker like a gasket alone. In addition, the diaphragm 6 cannot be coupled to the frame 5 at the same time as the gasket, and it takes time. Even if the gasket and the grill are integrated, the number of parts is reduced, so that the extra number of assembly steps is required, resulting in extra benefits. It was impossible.
[0007]
The present invention is intended to solve the above problems and to obtain the merit of reducing the number of parts without increasing the number of assembly steps.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, a speaker manufacturing method of the present invention includes a magnetic circuit, a frame coupled to the magnetic circuit, a voice coil having an outer periphery coupled to the frame and an inner periphery fitted into a magnetic gap of the magnetic circuit. A grill portion is integrally provided on a baffle plate having a gasket portion that is coupled to a diaphragm portion coupled to the frame and a portion of the outer periphery of the edge portion of the diaphragm that is coupled to the frame, and an opening portion is provided at the center of the baffle plate. In the manufacturing method of the speaker having the structure provided , at least the baffle plate and the diaphragm are coupled to the frame, and then the voice coil is coupled to the diaphragm through the opening provided in the baffle plate. There, through the opening of the baffle plate after mounting the baffle plate can bond the diaphragm and the voice coil, use a gasket alone Grill function in a similar assembly steps and conventional general speaker that also the added speaker is one that can provide no increase in the number of parts.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, there is provided a magnetic circuit, a frame coupled to the magnetic circuit, and a vibration coupled to a voice coil having an outer circumference coupled to the frame and an inner circumference fitted into the magnetic gap of the magnetic circuit. Of a speaker comprising a plate and a baffle plate having a gasket portion that is coupled to a portion of the outer periphery of the edge portion of the diaphragm that is coupled to the frame, a grill portion, and an opening in the center . In the manufacturing method, at least the baffle plate and the diaphragm are coupled to the frame, and then the voice coil is coupled to the diaphragm through the opening provided in the baffle plate. The voice coil and the diaphragm can be coupled through the opening of the baffle plate after the diaphragm is mounted on the frame, and a conventional gasket is used. Grill features in common loudspeaker the same assembly steps are also those which can be added.
[0012]
An embodiment of the speaker of the present invention will be described below with reference to FIGS. In addition, the same part as a prior art gives the same number, and it abbreviate | omits description and demonstrates.
[0013]
(Embodiment 1)
FIG. 1A is a cross-sectional view of the speaker of the present invention, and FIG. 1B is a top view thereof.
[0014]
According to the figure, reference numeral 12 denotes a baffle plate having a gasket portion 12a at the periphery and having an opening portion 12c having a diameter larger than at least the voice coil 8 in the center. Reference numeral 12b denotes a grill portion of the baffle plate 12.
[0015]
In the speaker configured as described above, after the diaphragm 6 and the baffle plate 12 are coupled to the frame, the voice coil 8 is fitted into the magnetic gap 1a of the magnetic circuit 1, and the voice coil 8 and the inner periphery of the diaphragm 6 are coupled. Therefore, the speaker can be assembled in the same manner as a conventional speaker with a gasket alone, and the speaker having the grill portion 12b as in the present invention can be provided without increasing the number of parts and the number of assembly steps.
[0016]
(Embodiment 2)
Another embodiment of the speaker of the present invention will be described with reference to FIGS. FIG. 2A is a cross-sectional view of another embodiment of the speaker of the present invention, and FIG. 2B is a top view thereof. The difference from the embodiment is that a rib 12d is provided on the periphery of the opening 12c of the baffle plate 12. By providing the rib 12d, the strength in the vicinity of the opening 12c of the baffle plate 12 is improved.
[0017]
【The invention's effect】
Speaker manufacturing method of the present invention as described above, only setting the central opening of the baffle plate provided integrally with the gasket portion and the grill portion, a magnetic voice coil after combining the diaphragm and the baffle plate to the frame until it clicks into the magnetic gap of the circuit, by subsequently combining the inner periphery of the voice coil and the diaphragm, the assembly of speakers as if carried out in the same manner as conventional speaker gasket alone, the number of parts of the speaker having the grill This can be provided without an increase in assembly man-hours.
[Brief description of the drawings]
1A is a cross-sectional view of a speaker according to an embodiment of the present invention; FIG. 2B is a top view thereof; FIG. 2A is a cross-sectional view of another embodiment; (A) Cross-sectional view of a conventional speaker (b) Top view of the same [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Magnetic circuit 1a Magnetic gap 5 Frame 6 Diaphragm 7 Edge part 8 Voice coil 9 Damper 12 Baffle board 12a Gasket part 12b Grill part 12c Opening part 12d Rib

Claims (1)

A magnetic circuit, a frame coupled to the magnetic circuit, a diaphragm coupled to a voice coil having an outer periphery coupled to the frame and an inner circumference fitted into the magnetic gap of the magnetic circuit, and an outer periphery of an edge portion of the diaphragm the grill unit is provided integrally with and has a gasket portion that binds to the binding portion between the frame, a further loudspeaker manufacturing method of the constituted by the baffle plate provided with openings at the center, at least the baffle after the plate and the diaphragm coupled to the frame, the manufacturing method Luz speaker be coupled with the diaphragm through the openings of the voice coil is provided in the baffle plate.

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