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JPH07222283

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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 JPH07222283
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
connecting wiring structure of a speaker using a conductive part mounting damper provided
with a conductive part along a corrugation, and in particular, the outer end of the conductive part
and the input lead wire. The present invention relates to a wiring structure for connection.
[0002]
2. Description of the Related Art In a speaker using a conductive part mounting damper provided
with a conductive part along a corrugation, various proposals have been made for a wiring
structure for connecting the outer end of the conductive part to the input lead wire. In addition,
we previously proposed another connection wiring structure as shown in FIGS.
[0003]
The connection wiring structure shown in FIGS. 7 to 9 is a speaker using the conductive part
mounting damper 6 in which the conductive part 2 is provided along the corrugation in a
damper provided with a plurality of corrugations concentrically. It is a wiring structure for
enabling reliable and easy connection of the outer end portion 21 of 2 and the input lead wire 5,
and the connector lugs 1a and 1b made of a conductive material are provided at the tip end
portion of the input lead wire 5 The connector lugs 1a and 1b and the conductive portion are
attached by holding the connector lugs 1a and 1b in a housing 3 molded of an insulating
material such as resin and mounting the housing 3 on a mounting portion 41 formed on the
frame 4 It is comprised so that it may fix in the state which made the outer end part 21 of 2
contact, and to carry out connection wiring.
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[0004]
More specifically, the conductive part mounting damper 6 has two conductive parts 2 made of
flat braided tinsel cords mounted in parallel with respect to the center line. In order to bond it,
the conductive part 2 is disposed parallel to the tongue-like attachment part 41 provided on the
center line of the frame 4 and bonded, and the input lead wire 5 is generally used Parallel
insulating vinyl is used, and the insulation coating on the tip is peeled about 5 mm to expose the
copper wire 51, and the copper wire 51 is crimped to the end of the pair of connector lugs 1a
and 1b. Do.
In the figure, reference numeral 12 denotes a contact portion bent on the side of the tip end
portion 11 of the connector lugs 1a and 1b, and in contact with the outer end portion 21 of the
conductive portion 2.
13 is a copper wire crimped portion, and 14 is an insulation film crimped portion.
[0005]
The connector lugs 1a and 1b are held by a resin housing 3 produced by injection molding. In
the housing 3, two square holes 3H for inserting the connector lugs 1a and 1b are formed with
the same pitch size as the outer end 21 of the conductive portion 2, and the connector lugs 3H
are formed. When the front end side of 1a and 1b is attached, the copper wire caulking portion
13 is disposed on the other opening side of the square hole 3H, whereby the housing 3 and the
connector lugs 1a and 1b are provided at the front end portion of the input lead wire 5 The
attached lead wire housing 3L is configured.
[0006]
A groove 31 corresponding to the mounting portion 41 of the frame 4 is provided at the bottom
of the housing 3. By inserting the groove 31 into the mounting portion 41, the lead wire housing
3L is mounted on a speaker and connected and wired. The lower portion of the rectangular hole
3H is opened at the end portion 33 side of the housing 3 so that the contact portion 12 of the
connector lugs 1a and 1b is exposed.
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[0007]
Therefore, when the groove 31 of the lead wire-attached housing 3L is inserted into the
attachment portion 41, the conductive portion 2 of the conductive portion attachment damper 6
is positioned relative to the attachment portion 41, and the connector attached to the housing 3
Since the lugs 1a and 1b are also arranged at the same pitch as the conductive portion 2, the end
portions 11 of the respective connector lugs 1a and 1b contact the outer end portion 21 of the
conductive portion 2 as shown in FIG. When 3 is pushed in, the end portions 11 of the connector
lugs 1a and 1b are bent, so the end portions 11 of the connector lugs 1a and 1b are easily
deformed as shown in the cross-sectional view of FIG. 2 and further pressing the housing 3 to a
predetermined final position, the springback of the tip 11 of the connector lugs 1a and 1b causes
the contact 12 to contact the outer end 21 of the conductive part 2. It is against the connecting
wire.
[0008]
The speaker connection wiring structure shown in FIGS. 7 to 9 previously proposed separately by
us is an application of the conventional wiring connector technology, and it is a connection
wiring using a faston terminal. It is a revolutionary method as a method to significantly improve
the method etc., and is an extremely effective means for reducing the number of man-hours in
wiring work.
[0009]
However, in the subsequent study, it was found that mass productivity, shape, and the like in
producing the lead wire housing 3L require consideration.
For example, since the conventional connector is adopted in the structure, that is, the connector
lugs 1a and 1b are inserted and attached to the mounting square holes 3H provided in the
housing 3, the square holes 3H and the connector lugs 1a, The mounting pitch of the housing 3,
that is, the arrangement pitch of the square holes 3 H is restricted to the mounting pitch of the
conductive portion 2 provided on the conductive portion mounting damper 6.
[0010]
When manufacturing the housing 3L with lead wire, in order to attach the connector lugs 1a and
1b and the input lead wire 5, as described above, the insulating film on the tip portion of the
input lead wire 5 consisting of parallel vinyl wires is peeled off. The wire 51 is exposed and the
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copper wire 51 is attached to the end of the connector lugs 1a and 1b by caulking, but since it is
a parallel wire, the connector lugs 1a and 1b and the copper wire are in a state immediately after
the copper wire 51 is exposed. When 51 is crimped, the end portions 5a and 5b of the two input
lead wires 5 are disposed adjacent to each other. In this state, the connector lugs that are
crimped first when the connector lugs 1a and 1b are crimped Can be crimped normally but the
second connector lug can not crimp due to interference with the previously attached connector
lugs.
[0011]
Therefore, in order to crimp the connector lugs 1a and 1b to the ends 5a and 5b of the respective
copper wires, as shown in FIG. 7, at least the width between the connector lugs 1a and 1b or the
attachment of the connector lugs 1a and 1b The insulation coating on the tip of the input lead
wire 5 is split according to the pitch, and the connector lugs 1a and 1b are crimped so that they
do not interfere with each other. The split portion, that is, the vicinity of the tip portion of the
input lead wire 5 is more easily moved, and the positioning of the ends 5a and 5b of the two
respective copper wires and the connector lugs 1a and 1b becomes difficult.
Accordingly, it has been found that it is difficult to automate the swaging of the input lead wire 5
and the connector lugs 1a and 1b.
[0012]
In addition, in the case of automating attachment (caulking) of the connector lugs 1a and 1b and
the input lead wire 5, it is possible to automate the caulking by using a single wire without using
parallel lines, but with this method, two wires can be used. The input lead wire 5 is attached to
the housing 3, and there is a problem that the wiring at the time of connection wiring to the
network substrate and connection wiring to the speaker becomes complicated.
Furthermore, it is difficult to locate the connector lugs 1a and 1b with the input lead wire 5
regardless of whether the input lead wire 5 is a parallel wire or a single wire, so it is possible to
use a predetermined square hole 3H of the housing 3 When the connector lugs 1a and 1b are
inserted and attached, there is a problem that automatic insertion is difficult and it is necessary
to rely on manual operation.
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[0013]
As for the connector lugs 1a and 1b, as shown in FIGS. 8A and 8B, since the shape is linear,
naturally the shape of the housing 3 also corresponds to the shape of the connector lugs 1a and
1b. As shown in the plan view of FIG. 9, it has a substantially rectangular shape, and the state in
which the lead wire housing 3L is attached to the frame 4 is as shown in FIG. 7 (A).
However, in such a shape, when the speaker is attached to the speaker attachment hole provided
in the baffle of the cabinet, the corner 3c of the housing 3 and the like easily come into contact
with the opening of the attachment hole. At present, since it is used for a speaker with a large
aperture, it is possible to secure an extra space even with such a shape, but when used for a
speaker with a smaller aperture, the corner 3c is completely baffled. As a result of contact with a
part, a phenomenon such as increase in complexity of the installation operation or inability of
installation occurs.
[0014]
Furthermore, in the contact wiring connection as described above, in order to ensure the
reliability of the connection, it is preferable to make the width of the contact portion 12 of the
connector lugs 1a and 1b wider than the width of the conductive portion 2 In the conventional
connector structure, however, the shape of the connector lugs 1a and 1b is linear, and if the
width of the contact portion is increased, the size of the square hole 3H to be inserted must be
increased according to the width. There is a problem to be solved, such as the external shape of 3
becoming unnecessarily large.
[0015]
Therefore, an object of the present invention is to provide a speaker connection wiring structure
that solves the problems as described above, is more suitable for mass production, and can
further expand the application range.
[0016]
SUMMARY OF THE INVENTION In order to solve this problem, the present invention relates to a
speaker using a conductive part mounting damper in which a conductive part is provided along a
corrugation in a damper provided with a plurality of corrugations concentrically. A connector lug
made of a conductive material such as metal is attached to the tip of each of the input lead wires
and the connector lug is held by a housing made of an insulating material such as resin; and the
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connector lug and the outer end of the conductive portion And connecting the input lead wires to
the respective connector lugs, wherein the mounting pitch dimension is smaller than the
arrangement pitch dimension of the conductive portions of the conductive portion mounting
damper, and It is configured to be equal to or larger than the line width of the input lead line
arranged in parallel in two.
[0017]
The shape of the connector lug or housing is formed along the outer periphery of the conductive
part mounting damper or the outer periphery of the damper seat formed on the frame, and the
tip of the input lead is the input lead To be attached to the connector lug in a state of being bent
at an angle to the linear direction of the connector.
[0018]
The housing is constituted by a divided housing body, and the connector lugs are held by both
housing bodies, and the arrangement width of the contact portion with the conductive portion in
the pair of connector lugs is wider than the maximum installation width of the conductive portion
Configure to
[0019]
With the above construction, the width of the connector lug can be greatly expanded, and the
attachment pitch of the connector lug and the lead wire for input is narrower than the
attachment pitch of the conductive portion 2 to the damper. And since it is constituted so that it
may become more than the line width of the lead wire for two arranged in parallel, the insulation
part of the tip part of the lead wire for input is simultaneously crimped by two pieces with the
minimum peeling and tearing dimension. It is possible to
[0020]
Furthermore, the housing is divided into two, and basically, the connector lug is held by the
housing, and the connector lug or the housing has a conductive portion mounting damper or an
arc shape along the outer peripheral portion of the frame. Due to the shape, it is possible to
produce a leaded housing suitable for mass production by automation, to make the connection
between the conductive part of the damper and the connector lug more reliable, and applicable
to a speaker with a smaller diameter. It becomes the connection wiring structure of the speaker.
[0021]
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiment of the
speaker connection wiring structure according to the present invention will be described with
reference to FIGS. 1 to 6. The parts in common with the parts described in FIGS. Description is
omitted.
Further, when the positional relationships of the connector lugs 1a and 1b, the conductive
portion 2, the housing 3 and the like are displayed in detail, it becomes complicated and difficult
to distinguish. Therefore, in the explanatory view, each is illustrated using different line types.
[0022]
The connector lugs 1a and 1b are shown by dotted lines in the plan views of FIGS. 1 and 2 and
by solid lines in the local enlarged view of FIG. 3 and pressing a thin plate made of a metal
having good conductivity such as copper alloy As shown in FIGS. 1 and 2, mounting portions for
mounting positive and negative input lead wires 5 are arranged symmetrically on the connector
lugs 1a and 1b, respectively.
[0023]
The attachment pitch dimension 5P of the pair of connector lugs 1a and 1b to the input lead wire
5 is the minimum necessary pitch dimension for attaching the input lead wire 5, and it goes
without saying that the conductive portion 2 of the conductive portion attachment damper 6 is
Conducting portion 2 disposed so as to be narrower than the mounting pitch dimension 2P and
greatly widening the width 1L of the contact portion 12 of the connector lugs 1a and 1b so that
the maximum arrangement width 1S of both the contact portions 12 and 12 is attached to the
damper To be wider than the maximum installation width 2S of.
That is, the dimension is made larger than the sum of the attachment pitch dimension 2P of the
conductive portion 2 and the width 2L of the conductive portion 2.
[0024]
The housing 3 is shown by a solid line in FIGS. 1 and 2 and by a thick solid line of a two-dot
chain line in the local enlarged view of FIG. 3, considering the shape of the leaded housing 3L
01-05-2019
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after attachment. The shape of the inner edge 3i and the outer edge 3o is formed in an arc shape
along the outer shape of the damper seat 42 of the frame 4, and the contact portion 12 of the
connector lugs 1a and 1b and the shape in the vicinity of the contact portion It has an arc shape
in accordance with.
In addition, in the case of the present Example, although formed in circular arc shape, it is
needless to say that combination of a straight line, a curve, etc. may be sufficient.
[0025]
The lead wire 5 for input is generally called a vinyl parallel wire generally used, and the
conductor is a metal wire made of ordinary copper or the like, and the conductor diameter is
about 0.18 mm and the number of conductors is 20. The conductor is covered with an insulating
film, in the case of this embodiment, a vinyl chloride resin, and two conductors finished to an
outer diameter of about 2.6 mm are combined to form a parallel line.
[0026]
The insulating film on the tip of the input lead wire 5 is peeled off by about 5 mm to expose the
copper wire 51, and the insulating portion is further cut off by about 7 mm, as shown in FIG. 3 of
the connector lugs 1a and 1b. Place the copper wire crimping part 13 in contact with the copper
wire 51 and the insulating coating crimping part 14 in contact with the insulating coating on the
tip of the lead wire, and crimp the copper wire crimping part 13 and the insulating coating
crimping part 14 to input Attach the tip of lead wire 5
Further, as shown in FIG. 4, the copper wire crimped portion 13 or the insulating film crimped
portion 14 or both are arranged obliquely.
In this case, the diagonally oriented caulking portion may be provided on only one of the
connector lugs 1a and 1b, or may be provided on both of the connector lugs 1a and 1b.
[0027]
The housing 3 is composed of an upper housing body 31 and a lower housing body 32 as an
upper and lower divided structure as shown in the side view of FIG. 5B, and the connector lugs
1a and 1b are the upper and lower housing bodies. The lead-wire attached housing 3 </ b> L is
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configured to be held by the members 31 and 32.
[0028]
In the case of this embodiment, a cylindrical convex portion 31p is provided at a predetermined
position on the left upper housing body 31 shown in FIG. 5B, and a hole 32h corresponding to
the convex portion 31p is provided in the lower housing body 32. When the two housing bodies
31 and 32 are overlapped, the convex portion 31p and the hole 32h are closely fitted.
Therefore, an adhesive is applied to the convex portion 31p and the vicinity thereof, and the
connector lugs 1a and 1b are disposed at predetermined positions on either of the upper and
lower housing bodies 31 and 32 and held by the both housing bodies 31 and 32. The upper and
lower housing bodies 31, 32 are integrated by this.
[0029]
The molding form and the method of integration of the upper and lower housing bodies 31 and
32 may be variously considered according to the performance and purpose of use other than the
above-mentioned method.
For example, as shown in FIG. 6, the upper and lower housings 31 and 32 are integrally formed
in a thin hinge portion 3b by the generally adopted molding method, or ultrasonic melting is
performed when integrating the both. It is also possible to carry out integration processing using
a coating process, a screw, an eyelet for caulking, a pin or the like.
[0030]
As shown in FIGS. 5 and 6, the bottom portion of the lower housing 32 has an insertion groove
32s for insertion corresponding to the mounting portion 41 projecting from the frame 4
similarly to the housing structure described with reference to FIGS. The housing 3 is pushed in
and attached such that the groove 32s is inserted into the attachment portion 41.
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At this time, as shown in FIG. 3, when the contact portions 12 of the connector lugs 1a and 1b
respectively contact the outer end portion 21 of the conductive portion 2 and push the housing 3
further, The contact portion 12 is brought into pressure contact with the outer end portion 21 of
the conductive portion 2 which extends over the damper sticking margin portion 62 by spring
back, and the connection wiring is completed.
Note that although the explanatory view of FIG. 3 mainly draws the connection portion 12 and
the other parts are omitted, in order to lock the housing 3 and the attachment portion 41, FIGS.
Of course, a locking mechanism similar to that shown in C) can be provided.
[0031]
According to the speaker connection wiring structure of the present invention, the mounting
pitch dimension of the connector lug on the input lead wire is narrower than the mounting pitch
dimension of the damper, and the insulating portion at the tip of the parallel input lead wire Is a
pitch size that allows simultaneous caulking of two with minimum peeling and tearing
dimensions, which makes it extremely easy to automate when producing a housing with a lead
wire, and to greatly expand the contact area of the connector lug Can.
[0032]
In addition, the structure in which the housing is divided into two simplifies the assembly process
of the lead wire-equipped housing, facilitates the above-mentioned automation, and exerts a very
large effect on labor saving.
[0033]
In addition, since the tip of the input lead wire is attached to the connector lug in a state of being
bent obliquely to the line direction of the input lead wire, positioning of the tip of the input lead
wire becomes easy, and Since the arrangement and the like of the caulking jig of the caulking
machine is easy, the quality can be improved also in terms of the stability of the caulking state
and the like.
[0034]
Since the connector lug or housing is shaped along the outer periphery of the conductive part
mounting damper or the outer periphery of the damper seat formed on the frame, the corners of
the housing may be used even for small diameter speakers Since there is no possibility of contact
with the opening of the speaker mounting hole of the baffle, the mounting operation is
facilitated, and the range of usable speakers of the leaded housing is expanded.
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[0035]
Since the width of the contact part of the connector lug is much wider than the width of the
conductive part, even if the installation position of the conductive part mounting damper or the
conductive part is slightly misaligned, a normal contact state can be secured and a stable
connection state is maintained. The wiring structure is extremely effective in improving the
quality of connection wiring.
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