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JPS58162197

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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
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DESCRIPTION JPS58162197
[0001]
The present invention relates to a method of assembling a speaker. FIG. 1 shows an exploded
perspective view of a conventional speaker, and FIG. 2 shows an assembled sectional view
thereof. In these figures, (1) is a dome-shaped front cover provided with a large number of sound
emission holes ?11 C1 ииии, (2) has a dome portion (company) in the center, and an edge portion
on the outer periphery thereof The diaphragm is an integrally formed diaphragm, and has an
outer periphery that matches the outer peripheral inner wall opening of the front cover (1). (3) is
a voice coil adhesively bonded to the annular end of the back surface of the dome portion
(company) of the diaphragm (2). (4) is a magnetic yoke (431) which is a magnetic yoke
composed of two magnetic plates f411 ll and a magnet (a four-point magnetic yoke) and the
voice call (3). (5) is an annular resin yoke fitted to the outer periphery of the magnetic yoke (4). A
plurality of vent holes f511, t511,... A protrusion @ is formed which matches the outer peripheral
inner wall a21 of (1). In the conventional method of manufacturing a new speaker, as shown in
FIG. 2, the voice coil (3) is coupled to the diaphragm (2), and the voice coil (3) is magnetically
coupled. However, according to the conventional method to pray, the position of the voice yo-yo
coil (3) is the resin of the periphery (c) of the diaphragm (2)! The attachment to the yuadazu (5)
depends on the accuracy, and if this accuracy is low, there is a drawback that the contact
accident between the voice coil (3) and the magnetic material plate 1411 f4 of the magnetic yoke
(4) may be embrittled The In addition, since it is necessary to bond the periphery (3) of the
diaphragm (2) directly to the protrusion @ of the resin yoke (5) using an adhesive, the adhesive
flows out to the inside of the diaphragm (2) Therefore, there is a fear that the magnetic yoke 41
(the magnetic gap 41 may enter into the magnetic gap 43). The present invention has been made
in view of the point of prayer and will be described in detail below. FIG. 6 shows an exploded
perspective view of the loudspeaker according to the present invention, and FIG. 4 shows its
assembled sectional view. In these figures, fi +, +21, +31.141, +51 show the front cover,
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diaphragm, voice coil, magnetic yoke, resin yoke as in the conventional speakers shown in FIGS.
1 and 2, respectively. The front cover (1) and the resin yoke (51 are obtained, for example, by
molding an ABS resin, and the diaphragm (2) is obtained, for example, by hot pressing a
polyester film. On the other hand, the voice coil (3) is a porous type and is obtained by adhesively
bonding the voice coils themselves.
The magnetic yoke +41 has a configuration in which a ferrite magnet (company) is sandwichbonded between two magnetic plates +411 +411, and is fitted and adhered in the annular resin
yoke (5). Where the loudspeakers shown in these figures are different from the conventional
loudspeaker, the five projections (?) are formed on the outer peripheral portion of the resin
yoke (5) at substantially equal distances. (There is a point that a through hole (goods) @ (goods)
is provided in each of 531-. Further, six projections 03 Q: 1 Ql are formed on the outer periphery
of the front cover (1) at an equal distance, and the projections of the resin yoke (5) are formed on
each of these projections ? openings 31a3. 6 wooden pin members 04 (14114 are planted in
height) which conforms to the respective through holes (goods) (goods) (goods) of the coffin and
has a height greater than the height of the voice coil (3) is there. Next, the method of assembling
the speaker of the present invention having the above-mentioned configuration will be described
in detail. First, as shown in FIG. 4, the outer periphery ??? of the diaphragm (2) is inserted
into the outer peripheral inner wall a2 of the dome-shaped front cover fi + and is bonded with an
adhesive. Therefore, the adhesive does not flow to the yoke +41 +51. Subsequently, with the
outer surface of the cylindrical jig in contact with the outer peripheral inner wall O2 of the front
cover and in contact with the inner surface of the jig, the upper end of the voice coil (3) is
vibrated by the adhesive. Glue to the annular end of the back of the dome (2) of the plate (2).
Thus, the voice coil (3) is coupled to the diaphragm (2) concentrically with the outer
circumferential inner wall @ with reference to the outer circumferential inner wall (2) of the front
cover (2). Next, pin members Q41 ua?O implanted from the respective projections a313 Ql of
the front cover (1) are inserted into resin yokes (in the through holes 61164 ??? provided at
the respective projections 53 of 51). At this time, the height of these pin members ? 404) 0 ? is
larger than the height of the voice coil (3), and the lower end portion of the pin member a4a 41
aa is positioned below the lower end portion of the voice coil (3), The voice coil (3) contacts each
yoke + 41 + 51 until the lower end of the pin member ah a m a 4) of the front cover reaches the
entrance of the through hole of the resin yoke (5). There is no accident of deformation. In
addition, since the pin member ? rolo 4 of the front cover is first inserted into the through hole
of the resin yoke (5), these pin members 04, ..., through holes (f) ... Acts as a jig, and at the same
time the outer peripheral inner wall ?2 of the front cover (1) is fitted to the outer surface of the
annular ridge-of the resin yoke (5), the magnetic stripe concentric with the ridge ??? Gap
(within the outer periphery of the front cover (1) in 43?
A voice coil (3) concentric with Q3 is placed. Heat the lower end of each pin member ?41041
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Q41 of the front cover (1) that protrudes from the through hole of the resin yoke (5) to the back
side using a soldering iron etc. Although the front cover (1) and the resin yoke (5) are integrally
joined by fusion, the resin yoke (5) acting as a frame is shown in the above description. If the
magnetic yoke (4) doubles as this frame, a praying resin yoke (5) is not necessary. As apparent
from the above description, in the method of assembling the speaker according to the present
invention, after the diaphragm is adhered to the outer peripheral wall of the front cover, the
voice coil is adhered and fixed to a predetermined position of the diaphragm based on the outer
peripheral wall. Due to the dimensional accuracy of the periphery of the diaphragm and its
attachment by fitting the outer peripheral part of the right and left, the voice coil can be
accurately disposed within the magnetic gap without contacting the yoke member. It becomes
possible 1. Also, since it is not necessary to adhere the periphery of the diaphragm yoke and the
wedge member to the main member by means of an adhesive, the adhesive flows into the air hole
or magnetic gap provided in the yoke member, It is possible to prevent an accident that blocks
the pores and the magnetic gap.
[0002]
Brief description of the drawings
[0003]
1 and 2 are an exploded perspective view of a conventional speaker, and an assembled sectional
view thereof, and FIGS. 6 and 4 are an exploded perspective view of a loudspeaker according to a
method of manufacturing a loudspeaker of the present invention, and an assembled sectional
view thereof It is.
(Old и и и и и и и и Front cover, I и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и voice coil, (4) и и и и
и и Magnetic yoke, (43 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и hole. Figure 1 Figure
3
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