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DESCRIPTION JPH1188984

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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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH1188984
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker terminal device for connecting an external input and a lead wire leading to a lead of a
voice coil in a speaker used for various kinds of audio equipment.
[0002]
2. Description of the Related Art Various terminal devices for connecting a lead wire of a voice
coil to an external input have been proposed and put to practical use, but generally, a pair of
terminals are formed on a rectangular substrate. The L-shaped terminal lugs are fixed at a
predetermined interval, and the positive side of the flexible lead wire connected to the lead wire
of the voice coil is soldered to one of the terminal lugs, and the negative side is soldered to the
other terminal lug In addition to the fixing by attachment, insertion pieces in which the tip of the
external input wire is fixed by soldering are inserted and attached to the terminal lugs,
respectively, and the terminal lugs and the insertion pieces are crimped and fixed.
[0003]
The above-described known terminal device has a pair of terminal lugs in terms of parts, a
substrate for fixing the terminal lugs, and an eyelet for fixing the terminal lugs to the substrate.
From the point of view of productivity, it is necessary to fix the terminal lug to the board using
the eyelet, insert the lead wire into the mounting hole formed in the terminal lug and fix it by
soldering, and the user Viewed from the side, it is necessary to insert two positive and negative
plugs into the terminal lugs for use, etc. It has many problems to be practically solved in terms of
parts management, productivity and usability. ing.
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[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a terminal
device for a speaker which has a small number of parts, a very high productivity, and an
extremely simple external input operation.
[0005]
SUMMARY OF THE INVENTION In order to achieve the above object, a terminal device for a
speaker according to the present invention has a mounting portion for a speaker frame and a
pair of lead wires coupled to a lead of a voice coil. A lead wire fixing member made of an
insulator that can be engaged and held, and a connector incorporating a pair of contacts that can
be in contact with a pair of lead wires engaged and held by the lead wire fixing member It is
characterized by
[0006]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The terminal device for a speaker
according to the present invention basically comprises a lead wire fixing member capable of
engaging and holding a pair of lead wires coupled to the lead wire of a voice coil, and for fixing
the lead wire. It is comprised from the connector for making it fit outside a member and
connecting an external input wire and the said lead wire.
[0007]
One of the lead wire fixing members constituting the terminal device of the speaker is formed of
an insulator such as a plastic material, and wound and held a pair of lead wires coupled to the
lead wire of the voice coil. The shape is not particularly limited as long as the shape can be
formed, but preferably, a lead wire made of an insulating block material on a substrate provided
with a mounting portion to a terminal mounting plate formed on the speaker frame on the back
surface It is preferable to use what fixed the fixing member.
[0008]
The lead wire fixing member is basically formed of a rectangular block material, and a U-shaped
concave groove or the like is formed on a required side surface according to the type and shape
of the speaker to be applied to form a holding groove. It is possible to freely change how the lead
wire is wound around the block material by the method of forming the holding groove.
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[0009]
The holding groove provided on the lead wire fixing member is the most desirable means since
the lead wire can be easily and easily engaged and held without using a tool by forming a Ushaped concave groove on the side surface. However, it is possible to form an insertion hole
penetrating from one side surface to the other side surface and to engage and hold the lead wire
also by means for inserting and holding the lead wire in the insertion hole, and in either case the
lead It is important that a part of the wire be exposed on the side surface of the lead wire fixing
member for a required length.
[0010]
There is no particular limitation on the type of the pair of lead wires coupled to the lead wire of
the voice coil, but in consideration of the engagement retention to the lead wire fixing member, it
is preferable to be a flexible lead wire.
[0011]
The connector attached to the lead wire fixing member has a shape that can be fitted into the
lead wire fixing member from above or from the side, and for example, a hollow body with an
upper portion closed as one fitted from above The connector main body is formed, and a pair of
contacts capable of making contact with a pair of lead wires consisting of a plus wire and a
minus wire, which appear on the side surface of the lead wire fixing member in the connector
body are internally provided. A connector can be mentioned by connecting an external input
wire.
[0012]
The pair of contacts embedded in the connector may have a U-shaped or V-shaped metal plate
with a narrow width so that when the connector is fitted into and attached to the lead wire fixing
member, contact between the contact and the lead wire can be made more reliably. It is most
preferable to use one that is bent in a letter shape to give elasticity.
[0013]
In the speaker terminal device of the present invention, a pair of lead wires coupled to the lead
wire of the voice coil to a lead wire fixing member made of an insulator having a mounting
portion attachable to a terminal mounting plate formed on the speaker frame By engaging and
holding the lead wire fixing member, the pair of contacts fitted in the connector and the lead wire
are brought into contact with each other to make the voice coil and the external input simple,
easy and reliable. It can be conducted.
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[0014]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The terminal device for a speaker
according to the present invention will be specifically described with reference to the attached
drawings.
The terminal device 1 for a speaker according to the present invention comprises a lead wire
fixing member 2 for engaging and holding a pair of lead wires 8 and 9 coupled to the lead wire
18 of the voice coil as apparent in FIG. 1; It comprises the connector 10 fitted in the fixing
member 2 from the upper side.
[0015]
The lead wire fixing member 2 is configured by vertically fixing a rectangular block 4 at the
center of the upper surface of the rectangular substrate 3 provided with the notch grooves 3a
and 3b for guiding the lead wires 8 and 9 As is apparent from FIG. 3, the projection 3c is
integrally formed at the center of the back surface for insertion through the mounting hole 17 of
the terminal mounting plate 16 formed in the speaker frame 15, and is made of ABS resin is
there.
[0016]
In order to engage and hold the pair of lead wires 8 (plus side) and 9 (minus side), the block 4
made of this insulator has two concave grooves 5a, 5b, in parallel with the left and right side
surface portions respectively. 6a and 6b are provided, and two concave grooves 7a and 7b are
formed in parallel on the upper surface.
[0017]
When engaging and holding the lead wire to the block member 4, as shown in FIG. 1, the lead
wire 8, 9 whose base end is connected to the lead wire 18 of the voice coil is cut out at its distal
end. The lead wire 8 is drawn from the notch groove 3b onto the substrate 3, and the lead wire 8
is turned from the recess groove 5a to the recess groove 5b through the recess groove 7a and its
tip is stopped by the recess groove 5b. , And the tip of the lead is engaged with the block 4 by
holding the tip with the groove 6b. The leads 8 and 9 are partially exposed parallel to the front of
the block 4 Get out.
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[0018]
One connector 10 has a rectangular solid hollow plastic connector main body 11 closed at the
top having a void portion sufficient for inserting the rectangular solid block material 4 and a
connector main body 11 A pair of contacts 12 and 13 mounted in parallel to the inner
circumferential wall, each contact 12 and 13 bends a narrow metal plate into a U shape to give
elasticity to the whole, and each An external input line 14 is connected to the contacts 12 and
13.
[0019]
The terminal device 1 of the speaker including the lead wire fixing member 2 and the connector
10 having such a configuration has the terminal mounting plate 16 of the speaker frame 15 with
the protrusion 3 c provided on the back surface of the substrate 3 constituting the lead wire
fixing member 2. The substrate 3 is fixed to the terminal mounting plate 16 by heating and
melting the projection 3c projecting from the mounting hole 17 from above or below into the
mounting hole 17 formed in the upper surface of the substrate 3 as shown in FIG. By inserting
the connector 10 from the upper or lower side of the block material 4 provided in and
integrating the both, flexible leads 8 and 9 connected to the lead wire 18 of the voice coil and a
pair of connectors provided in the connector 10 The contacts 12 and 13 are brought into contact
with each other to electrically connect the external input line 14 and the voice coil (not shown).
[0020]
In the lead wire fixing member 1a shown in FIG. 5, two concave grooves are formed in parallel in
the vertical direction on the peripheral surface of the rectangular block 4a vertically provided on
the substrate, and for example, plus in one concave groove The lead wire 8a on the side is
engaged and held by winding the lead wire 9a on the minus side horizontally in the other groove
in the horizontal direction.
[0021]
The lead wire fixing member 1b shown in FIG. 6 fixes the block material 4b in which a part on
the lower surface side is cut away on the substrate so that the substrate upper surface and the
cutout surface face each other, and the required upper and lower surfaces of the block material
4b. A total of four concave grooves are formed at intervals, for example, the positive lead wire 8b
is wound from the upper concave groove to the lower concave groove, and the negative lead wire
9b is wound from the upper concave groove to the lower concave groove A connector (not
shown) is engaged with and held by turning, and a connector (not shown) is fitted in each lead
wire fixing member to make a terminal device of the speaker.
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[0022]
In the above embodiment, the lead wire fixing member is fixed on a rectangular substrate, a
protrusion is formed on the back surface of the substrate, and the protrusion is penetrated into
the mounting hole provided on the terminal mounting plate of the speaker frame. Although it
was disclosed that the tips of the protrusions were heated to fuse them together, there is no
particular limitation on the means for attaching the substrate to the terminal attachment plate,
and the lead wire fixing member is directly fixed to the terminal attachment plate It is also good.
[0023]
Further, engagement and holding of the lead wire to the lead wire fixing member form a plurality
of concave grooves in the block material, and wind the lead wire between the concave grooves
and a part thereof is revealed on the surface of the block material However, if at least two
shallow grooves are formed in the block material and lead wires are engaged and held in a state
where a part of the lead wire appears on the surface in each groove, the lead is not necessarily
required. It is not necessary to wind the wire, and it is essential that the lead wire can be reliably
engaged and held without using a means such as soldering on the lead wire fixing member.
[0024]
The terminal device for a speaker according to the present invention comprises a lead wire fixing
member made of an insulator for engaging and holding a pair of lead wires coupled to a lead
wire of a voice coil, and the lead wire fixing member. Since the connector is built with a pair of
contacts that can come into contact with a pair of engaged and held lead wires, when connecting
the voice coil and the external input wire, the connector is fitted into the lead wire fixing
member. The voice coil and the external input line can be connected easily and easily by means.
[0025]
In particular, the terminal device of the speaker according to the present invention does not
require any soldering operation as in the prior art, only by engaging and holding the lead wire
coupled with the lead wire of the voice coil to the lead wire fixing member. Work efficiency for
engaging and holding the lead wire can be further improved by forming a groove for engaging
and holding the lead wire in the lead wire fixing member without requiring parts such as an
eyelet and a plug. The cost can be reduced by raising the productivity of the entire speaker.
[0026]
In addition, since the connection of the external input line to the speaker can be performed by a
simple means of fitting the connector into the lead wire fixing member, the operation is easy, and
the connector appropriately selects the shape according to the appearance of the lead wire fixing
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member. This has many advantages in speaker manufacture, such as not having to provide male
and female connectors as in conventional connectors.
[0027]
Brief description of the drawings
[0028]
1 is a partially cutaway perspective view showing an example of the terminal device of the
speaker of the present invention.
[0029]
2 is a front view in FIG.
[0030]
3 is a perspective view of the main part showing an example of attachment of the lead wire fixing
member constituting the terminal device of the speaker of the present invention to the terminal
mounting plate.
[0031]
4 is a partially cutaway front view showing an example of a speaker attached with the terminal
device of the speaker of the present invention.
[0032]
5 is a perspective view showing another example of a lead wire fixing member constituting the
terminal device of the speaker of the present invention.
[0033]
6 is a perspective view showing still another example of the lead wire fixing member constituting
the terminal device of the speaker of the present invention.
[0034]
Explanation of sign
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[0035]
DESCRIPTION OF REFERENCE NUMERALS 1 speaker terminal device 2 lead wire fixing member
3 substrate 4 block member 5 a, 5 b recessed groove 6 a, 6 b recessed groove 7 a, 7 b recessed
groove 8, 9 lead wire 10 connector 11 connector body 12, 13 contactor 14 external input wire
15 Speaker frame 16 Terminal mounting plate
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