JP3985386B2 - Speaker terminal and speaker using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a speaker terminal used for various audio equipment and a speaker using the same.
[0002]
[Prior art]
The speaker terminal is fixed to the speaker frame for relaying the connection between the audio signal amplifier and the voice coil of the speaker. However, in recent years, the connection terminal from the audio signal amplifier is a connector. The end connected to the voice coil has a hole at the tip, and a flexible wire such as a tinsel wire connected to the end of the voice coil is inserted and soldered to the end. The structure to be used was used.
[0003]
The conventional speaker terminal will be described with reference to FIGS. 4, 5, 6, and 7. FIG.
[0004]
4 is a cross-sectional view of a conventional speaker, FIG. 5 is a perspective view thereof, FIG. 6 is a top view of a main part before the diaphragm is coupled, and FIG. 7 is a perspective view of a speaker terminal which is the main part.
[0005]
According to the figure, 1 is a magnetic circuit comprising an upper plate, a magnet and a lower plate and having a magnetic gap 1a, 2 is a resin frame coupled to the magnetic circuit 1, and 3 is an outer periphery via an edge portion 3a. The diaphragm is coupled to the frame 2 and has an inner periphery coupled to a voice coil 4 fitted into the magnetic gap 1a. Reference numeral 5 denotes one end connected to a wire ring (not shown) of the voice coil 4, and the like. A flexible wire, such as a tinsel wire, having an end connected to the speaker terminal 6 attached to the frame 2.
[0006]
The speaker terminal 6 integrates a pair of terminal boards 6a into a wall surface of a resin casing 6b having one opening by planting or insert molding.
[0007]
A hole 6c for insertion of the flexible wire 5 is provided in the vicinity of the tip of the terminal plate 6a outside the housing portion 6b.
[0008]
The flexible wire 5 has the tip of the flexible wire 5 inserted into the hole 6c of the terminal plate 6a of the speaker terminal 6 when the voice coil 4 prior to coupling the diaphragm 3 to the voice coil 4 is fitted in the magnetic gap 1a. It is inserted and fixed by soldering.
[0009]
A connector (not shown) is inserted into the opening of the housing portion 6b and connected to the terminal plate 6a, and an electric signal from an external sound source is supplied to the wire ring of the voice coil 4 via the speaker terminal 6, and the speaker generates sound. Will do.
[0010]
[Problems to be solved by the invention]
However, in the above-described speaker terminal, since only the hole 6c for inserting the flexible wire 5 is provided on the terminal plate 6a on the voice coil 4 side, there is a variation in soldering work between the voice coil 4 and the speaker terminal 6. It is difficult to make the setting of the length of the flexible wire 5 constant and the work becomes complicated, and the length between the speaker terminal 6 of the flexible wire 5 connected to the voice coil 4 and the voice coil 4 is long. There are problems such as suppression of the movement of the voice coil 4 due to the variation in size, and generation of abnormal noise by collision with the diaphragm 3 while the speaker is driven.
[0011]
SUMMARY OF THE INVENTION The present invention solves the above-described problem, and it is possible to easily provide a speaker terminal and a speaker that can stably regulate the soldering position of the flexible wire on the voice coil side and stabilize the quality of the speaker. .
[0012]
[Means for Solving the Problems]
In order to solve the above problems, a speaker terminal according to the present invention has a housing portion having an opening, and an end projecting inward from the housing portion to become a terminal portion for introducing an electric signal from an external sound source. The other end projecting outwardly sandwiches and temporarily fixes a flexible wire formed by cutting out the tip in the vertical direction, and goes toward the cut- and-raised part for soldering and fixing the flexible wire and the casing on the extension line. Since the flexible wire provided in the direction is composed of an upright wall portion with which the tip of the flexible wire abuts, a terminal plate formed by cutting from the side wall provided between the upright wall portion and the raised portion , the flexible wire is The length required for soldering can be regulated to a certain amount by making the tip part abut against the upright wall part easily and temporarily fixed to the cut-and-raised part. The required length between the speaker terminal for the flexible wire connected to the voice coil and the voice coil can be stably secured, and variations in the quality of the speaker due to the required length of the flexible wire can be suppressed. In addition, the length of the heat transfer path to the casing (terminal base) when the flexible wire is soldered and fixed at the cut-and-raised portion is increased by cutting from the side end, and the casing is a plastic molded body. This prevents thermal deformation and prevents problems when the connector that transmits an electrical signal from an external sound source is inserted into the casing.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, a housing portion having an opening, and one end projecting inward of the housing portion to become a terminal portion for introducing an electric signal from an external sound source, outward from the housing. The protruding other end is sandwiched and temporarily fixed with a flexible wire formed by cutting the tip in the vertical direction, and is provided in a direction toward the housing portion on the extension line and the cut portion for soldering and fixing the flexible wire. Soldered to this speaker terminal because it is composed of an upright wall portion that comes into contact with the tip of the flexible wire, and a terminal plate formed by cutting from the side wall provided between the upright wall portion and the upright portion. The flexible wire to be connected is easily temporarily fixed to the cut-and-raised part with a part cut away, and the required length for soldering is made constant by bringing the tip part into contact with the standing wall part. The required length between the speaker terminal of the flexible wire connected to the voice coil and the voice coil can be stably secured, and variation in the quality of the speaker due to the required length can be suppressed. It can be done.
[0014]
Furthermore, by providing a notch from the side end between the standing wall and the cut-and-raised part of the terminal plate, the heat transfer path to the housing (terminal base) when the flexible wire is soldered and fixed is lengthened, and the plastic It suppresses thermal deformation of the casing, which is a molded body, and prevents problems during insertion of a connector that transmits an electrical signal from an external sound source into the casing.
[0015]
According to the second aspect of the present invention, a housing portion having an opening, and one end projecting inward of the housing portion to become a terminal portion for introducing an electric signal from an external sound source, outward from the housing. The other end that protrudes the other end between the cut- and-raised part that solders and fixes the flexible wire and the housing part on the extension line. A flexible part that is composed of a wall part provided on the terminal board side, a pair of terminal boards made of notches from the side edges provided between the casing and the housing, and soldered to the speaker terminal. The required length for soldering can be regulated to a certain amount by bringing the tip of the wire into contact with the housing, and the required length between the speaker terminal of the flexible wire connected to the voice coil and the voice coil Can be ensured stably, and variation in speaker quality due to the required length can be suppressed, and the wall portion can further reduce the quality of the flexible wire. It also has the effect of preventing contact with the other terminal plate due to bending of the tip of the flexible wire due to heat at the time of soldering to the speaker terminal, and preventing short circuit.
[0016]
Furthermore, by providing a notch from the side edge between the cut and raised portion of the terminal plate and the housing, the notch heats the housing (terminal base) when the flexible wire is soldered and fixed at the raised portion. This lengthens the transmission path, suppresses thermal deformation of the casing, which is a plastic molded body, and prevents problems when the connector that transmits an electrical signal from an external sound source is inserted into the casing.
[0017]
According to a third aspect of the present invention, there is provided a vibration in which a magnetic circuit, a frame coupled to the magnetic circuit, and a voice coil fitted into a magnetic gap of the magnetic circuit are coupled to the inner periphery and the outer periphery is coupled to the frame. plate and one end is fixed to the frame of the claims 1 to any crab according to claim 2 in which a terminal board to which the other end is connected to the voice coil is the input portion of the external audio signal via a flexible wire It is composed of a speaker terminal, the soldering position of the flexible wire to the speaker terminal is specified, and the required length of the flexible wire between the voice coil and the speaker terminal is stably secured, Prevents the occurrence of abnormal noise by eliminating contact with other parts of the flexible wire while driving the speaker. And it makes it possible to provide quality stable speaker prevents a harmful factor.
[0018]
Hereinafter, an embodiment of a speaker terminal according to the present invention will be described with reference to FIGS.
[0019]
The same parts as those in the prior art are denoted by the same reference numerals and description thereof is omitted, and the overall configuration of the speaker is also the same as that in the prior art, and thus description thereof is omitted.
[0020]
(Embodiment 1)
FIG. 1 is a perspective view of a speaker terminal according to an embodiment of the present invention.
[0021]
According to the figure, 10 is a speaker terminal, 10b is a casing made of plastic and has an opening on one side, and 10a is a terminal protruding into the opening by outsert molding or press-fitting into the casing 10b. Reference numeral 10c denotes a terminal part for introducing an electric signal on one end side protruding into the housing part 10b of the terminal board 10a, to which a connector for supplying an external signal (not shown) is connected.
[0022]
10d is a cut-and-raised portions which are provided have missing off the tip flexible wire 5 tinsel cords or the like provided on the other end side of the outer casing portion 10b of the terminal plate 10a is sandwiched in the vertical direction, 10e this It is an upright wall formed by cutting and bending a part of the terminal board 10a so as to face the cut and raised portion 10d on a straight line toward the housing portion 10b of the cut and raised portion 10d.
[0023]
The connection of the flexible wire 5 to the speaker terminal 10 is performed by soldering the flexible wire 5 with the upright wall 10e in contact with the tip of the flexible wire 5 and slightly deforming and temporarily fixing it. The cut-and-raised part 10d is soldered to connect the flexible wire 5 to the speaker terminal 10.
[0024]
As described above, since the flexible wire 5 is temporarily fixed and soldered in a state where the tip is in contact with the upright wall 10e, the length of the tip of the flexible wire 5 for connecting to the speaker terminal 10 is stable with little variation. As a result, the required length of the flexible wire 5 between the voice coil 4 and the speaker terminal 10 can be stably secured, and contact with other parts of the flexible wire 5 during driving of the speaker can be eliminated to generate abnormal noise. In addition, it is possible to prevent the voice coil drive from being an obstacle.
[0025]
Further, the terminal plate 10a is cut and bent to provide an upstanding wall 10e, and heat conduction between the cut and raised portion 10d and the housing portion 10b soldered by the cut 10f from the side end of the terminal plate 10a formed thereby. The road can be narrowed, and the standing wall 10e functions as a heat sink, suppressing the influence of heat on the housing 10b and preventing deformation in the opening of the housing 10b, thereby stably inserting the connector. It can be done.
[0026]
Further, the notch 10f portion of the upright wall 10e can function as a window portion for silently viewing the soldered state from the lower surface side.
[0027]
(Embodiment 2)
Another embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a perspective view of the speaker terminal, and FIG. 3 is a perspective view of the speaker terminal with a flexible wire attached. In addition, the same part as Embodiment 1 attaches | subjects the same number, description is abbreviate | omitted, and only the structure of the terminal board 11 which is a difference is demonstrated.
[0028]
Reference numeral 10d denotes a cut- and-raised portion provided at the front-end portion of the terminal board 11 by cutting out the same front-end as in the first embodiment. A wall portion formed by bending a terminal plate 11 provided on the other terminal plate 11 side by side on an extension line to the housing portion 10b side, and the housing portion 10b on the opposite side of the wall portion 11a. A cut 10f from the side end of the terminal board 11 having the same effect as that of the first embodiment is provided between the cut and raised portions 10d.
[0029]
As described above, in the present embodiment, the flexible wire 5 is temporarily fixed by the cut and raised portion 10d in a state where the flexible wire 5 is in contact with the housing portion 10b, whereby the flexible wire 5 is connected to the speaker terminal 10. The required length of time is stably secured, and the same effect as in the first embodiment is obtained.
[0030]
In addition, heat conduction to the housing portion 10b is suppressed by the heat radiation and the cut 10f by the wall portion 11a to prevent the housing portion 10b from being deformed due to heat and the failure of the connector insertion / extraction due to this, and the flexible wire 5 is further cut. When temporarily fixed to the raised portion 10d and soldered, the tip of the flexible wire 5 is bent by the heat of the solder to prevent contact with the other terminal plate 11 arranged in parallel to prevent contact with the wall portion 11a. Is something that can be done.
[0031]
In addition, in each said embodiment, although the terminal for speakers was demonstrated, the required length of the flexible wire between the voice coil 4 and the terminal 10 for speakers was stably ensured by using for the speaker demonstrated by the prior art, It is possible to provide a speaker with stable quality that prevents the generation of abnormal noise by eliminating contact with other parts of the flexible wire during driving of the speaker, and prevents the voice coil from being disturbed. Is.
[0032]
【The invention's effect】
As described above, the speaker terminal according to the present invention is capable of regulating the required length for soldering to a certain amount by bringing the tip portion into contact with the standing wall portion or the housing portion, and is flexible to be connected to the voice coil. The required length between the wire speaker terminal and the voice coil can be stably secured, and the variation in the quality of the speaker due to the required length of the flexible wire can be suppressed. Extends the heat transfer path to the casing (terminal base) when the flexible wire is soldered and fixed at the starting part, suppresses thermal deformation of the casing, which is a plastic molded body, and provides an electrical signal from an external sound source This also has the effect of preventing problems during insertion of the connector for transmitting the signal into the housing.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embodiment of a speaker terminal according to the present invention. FIG. 2 is a perspective view of a speaker terminal according to another embodiment. FIG. FIG. 4 is a cross-sectional view of a conventional speaker. FIG. 5 is a perspective view of the conventional speaker. FIG. 6 is an enlarged view of the vicinity of the speaker terminal before the diaphragm is coupled to the frame. Partial top view [Fig. 7] Perspective view of a conventional speaker terminal [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Magnetic circuit 2 Frame 3 Diaphragm 4 Voice coil 5 Flexible wire 10 Speaker terminal 10a, 11 Terminal board 10b Case part 10d Cut-and-raise part 10e Standing wall 10f Cut 11a Wall part

Claims (3)

A housing portion having an opening, and one end projecting inward of the housing portion to serve as a terminal portion for introducing an electric signal from an external sound source , and the other end projecting outward from the housing has a front end vertically cut away. An upright wall between the cut-and-raised part for soldering and fixing the flexible wire and the tip of the flexible wire provided in a direction toward the housing part on the extension line And a pair of terminal plates formed by cutting from side edges provided between the upright wall portion and the raised portion . A housing portion having an opening, and one end projecting inward of the housing portion to serve as a terminal portion for introducing an electric signal from an external sound source , and the other end projecting outward from the housing has a front end vertically cut away. The wall formed on the other terminal plate side between the cut-and- raised part for soldering and fixing the flexible wire and the housing part on the extension line, and the cut A speaker terminal comprising a pair of terminal plates each formed by a notch from a side end provided between a raised portion and the casing . A magnetic circuit; a frame coupled to the magnetic circuit; a diaphragm in which a voice coil fitted into the magnetic gap of the magnetic circuit is coupled to the inner periphery and the outer periphery is coupled to the frame; and one end fixed to the frame and a flexible wire A speaker comprising the speaker terminal according to claim 1 or 2, wherein a terminal plate is connected to the voice coil through the other end and the other end serves as an input portion for an external audio signal.

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