JP2004023515A - Speaker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker equipped with a terminal device in which a metal terminal is easily inserted to and pulled out of a connector housing and the metal terminal is not pulled out even in an abnormal vibration mode when conveying a speaker unit with respect to the terminal device related to a signal input from the outside, particularly, in the speaker used for acoustic equipment or the like. <P>SOLUTION: After a metal terminal is inserted into a groove on a connector housing 11, at least a part of the groove is covered with a diaphragm 3 so that the metal terminal 6 is prevented from being dropped out even in the unexpected vibration mode when conveying the speaker unit. In such a case, the groove is covered by sticking the diaphragm so that special assembly work is not required, and a man-hour for manufacturing becomes equal to a conventional speaker. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a loudspeaker used mainly for an in-vehicle audio device, and more particularly to a structure of a metal terminal for external signal input and a connector housing for mounting the metal terminal.
[0002]
[Prior art]
A conventional technique will be described with reference to FIGS. 2, 3A, 3B, and 3C.
[0003]
FIG. 2 is a perspective view of the speaker viewed from the back, FIG. 3A is a perspective view of a pair of metal terminals of the speaker as a main part, and FIG. 3B is a perspective view of a connector housing. FIG. 3C is a perspective view for explaining a state where the metal terminal is mounted on the connector housing.
[0004]
According to FIG. 1, reference numeral 1 denotes a magnetic circuit, which is formed by a yoke, a magnet, and an upper plate; 2, a resin speaker frame connected to the magnetic circuit; and 3, an outer periphery bonded to the speaker frame 2. A diaphragm is bonded and has an inner periphery adhesively bonded to a voice coil (not shown) fitted into a magnetic gap (not shown) of the magnetic circuit 1, and 4 is integrally formed with the speaker frame 2. A terminal device formed from a connector housing 5 and a pair of metal terminals 6. Reference numeral 7 denotes a bridge unit connecting the terminal device 4 and the resin speaker frame 2, whereby the terminal device 4 can be attached without wobbling, so that a connector (not shown) can be stably inserted and removed from the outside. Become.
[0005]
Reference numeral 6 denotes an L-shaped metal terminal provided with a bent portion 6a bent at approximately 90 ° in the middle, and 6b denotes a connector terminal portion provided at one end to which a connector (not shown) is mounted. In the vicinity of the other end, there is provided a notch 6c to be joined to a tinsel wire connected to a voice coil of a speaker (not shown).
[0006]
The connector housing 5 is provided with a groove 5a into which the bent portion 6a of the metal terminal 6 is inserted.
[0007]
The connection between the metal terminal 6 and the connector housing 5 is performed by inserting the metal terminal 6 into the groove 5a of the connector housing 5 as shown in FIG.
[0008]
As described above, the metal terminals 6 are mounted on the connector housing 5 simply by being inserted into the groove portions 5a of the connector housing 5, and the metal terminals 6 are provided between the bent portions 6a on the inner walls of the corresponding groove portions 5a of the connector housing 5. Even if a force is applied to only one end of the metal terminal 6 in a direction to remove the metal terminal 6 from the groove 5a of the connector housing 5, the bent portion 6a is caught and the metal terminal 6 is removed from the groove 5a of the connector housing 5. Does not fall off easily, and when a mating connector (not shown) is inserted into the terminal device 4 of the speaker in order to input an electric signal to the speaker in use, the connector terminal portion 6b is fixed by the mating connector, so that the metal terminal 6 does not fall off the connector housing 5.
[0009]
However, when it is necessary to remove the metal terminal 6 from the connector housing 5, a notch for attaching a tinsel wire and a connector terminal at one end of the metal terminal are provided in a direction in which the metal terminal 6 is removed from the groove 5 a of the connector housing 5. If a uniform force is simultaneously applied to the other end, the inner wall of the groove of the connector housing between the bent portions 6a of the metal terminal does not hinder the removal, and can be easily removed.
[0010]
[Problems to be solved by the invention]
However, as described above, the metal terminal 6 is easily inserted into the connector housing 5 and hardly detached as described above. However, the metal terminal 6 is detached at a very low frequency due to an unexpected vibration mode when the speaker is transported. The possibility cannot be denied, and a structure that does not cause the metal terminal 6 to come off more reliably is desired.
[0011]
An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a speaker having a speaker terminal device in which metal terminals are not easily detached from a speaker connector housing.
[0012]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a speaker according to the present invention, wherein a connector housing is integrally provided near an outer periphery of a speaker frame on which a metal terminal is mounted, and a bent portion is provided at an intermediate portion of the metal terminal. A groove for inserting the metal terminal including the bent portion is provided in the connector housing, and an outer periphery of the diaphragm is attached to the speaker frame so as to cover a part or all of the groove. It is said that it is easy to insert and remove the metal terminal of the prior art, and it is difficult to remove the metal terminal unless an even force is applied to both ends. By retaining at least a part of the groove with the diaphragm while maintaining the features, the metal terminal can be prevented from falling off even in an unexpected vibration mode when the speaker alone is transported. Than it is.
[0013]
Since the groove is covered by attaching the diaphragm, no special assembling work is required, and the number of manufacturing steps can be performed in the same manner as in the related art.
[0014]
The invention of the speaker according to claim 2 of the present invention is to prevent the metal terminal from falling off when the speaker unit is transported by covering part or all of the groove of the connector housing with an adhesive used when attaching the diaphragm. Since the metal terminals can be replaced after the speaker is completed without damaging the diaphragm, the adhesive can be applied to the groove at the same time as the adhesive is applied to the diaphragm. The number of manufacturing steps can be performed in the same manner as in the related art.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the speaker terminal device of the present invention will be described below with reference to FIG. The same parts as in the prior art are denoted by the same reference numerals, and description thereof will be omitted.
[0016]
(Embodiment 1)
FIG. 1 is a side sectional view of a speaker according to an embodiment of the present invention. According to the drawing, reference numeral 2a denotes a resin speaker frame, and reference numeral 10 denotes a terminal device including a connector housing 11 formed integrally with the resin speaker frame 2a and a metal terminal 6 mounted on the connector housing 11.
[0017]
Although not shown, the connector housing 11 has a groove 5a similar to that of the prior art, and is mounted by being sandwiched between the bent portions 6a of the metal terminal 6 by the inner wall of the corresponding groove 5a of the connector housing 11. ing. With this configuration, the metal terminal can be easily inserted and removed as in the related art and is difficult to remove without applying an equal force to both ends. After the mating connector is inserted, the metal terminal is fixed by the mating connector. The feature that metal terminals can be prevented from falling off is maintained.
[0018]
Further, as is apparent from the figure, the outer peripheral bonding portion 3a of the diaphragm 3 having the outer peripheral edge portion is formed on the same plane on the same circumference as the attaching portion 2b of the speaker frame 2a to which the attaching portion 3a is attached. Is provided with an attachment portion 11a of the connector housing 11.
[0019]
Accordingly, the metal terminal 6 inserted and mounted in the groove 5a of the diaphragm 3 is simultaneously attached to the attaching portion 3a of the diaphragm 3 having an outer periphery as an edge when attaching the attaching portion 3a to the attaching portion 2b of the speaker frame 2a. 3 is also attached to the attaching portion 11a of the connector housing 11, so that a part or all of the groove 5a is covered with the diaphragm 3, thereby preventing an abnormal vibration mode during the speaker conveyance. Even if it is received, the metal terminal 6 is prevented from coming off.
[0020]
In the above embodiment, the attachment portion 11a of the connector housing 11 is described as being provided on the same plane on the same circumference as the attachment portion 2b of the speaker frame 2a. Even if it is provided in the vicinity, the sticking portion 3a of the diaphragm 3 is extended so that the sticking portion 11a of the connector housing 11 can be stuck together with the sticking portion 2b of the speaker frame 2a. This is one embodiment. In this case, even if it is necessary to remove the metal terminal 6 for repair or the like after the speaker is mounted on the device, damage to the state of the adhesive connection between the speaker frame 2a and the diaphragm 3 which affects the acoustic characteristics of the speaker may occur. It is possible to insert and remove the metal terminal 6 without giving it.
[0021]
In any of the above embodiments, the attachment can be performed simultaneously in the attachment step of the diaphragm 3 and the speaker frame 2a, so that an increase in cost due to an increase in man-hours can be prevented.
[0022]
Further, after the metal terminal 6 is inserted into the groove 5a, an adhesive is applied to prevent the metal terminal 6 from being detached by the adhesive. In this case, since the adhesive is applied simultaneously in the adhesive application step when attaching the diaphragm 3 and the speaker frame 2a, cost increase due to an increase in man-hours can be prevented. When this adhesive is applied, as long as it is near the outer periphery of the speaker frame 2a, there may be a slight height difference between the adhesive portion 2b and the speaker frame 2a.
[0023]
【The invention's effect】
As described above, according to the present invention, the metal terminal is inserted into the groove of the connector housing, and covers a part or all of the groove, so that the metal terminal is easily mounted on the connector housing, and is difficult to be easily removed. An object of the present invention is to provide an excellent speaker having a terminal device that does not come out even in an abnormal vibration mode during conveyance as a speaker alone.
[Brief description of the drawings]
FIG. 1 is a side cross-sectional view of a speaker according to an embodiment of the present invention. FIG. 2 is a perspective view of a conventional speaker viewed from the back. FIG. 3A shows a main part of a pair of metal terminals of the speaker. Perspective view (b) Perspective view of connector housing (c) Perspective view for explaining a state in which the metal terminal is mounted on the connector housing.
DESCRIPTION OF SYMBOLS 1 Magnetic circuit 2a Speaker frame 2b Sticking part (of speaker frame) 3 Diaphragm 5a Groove part 6 Metal terminal 6a Bending part 9 Voice coil 10 Terminal device 11 Connector housing 11a Sticking part (of connector housing)

Claims (2)

At least a magnetic circuit, a resin speaker frame coupled to the magnetic circuit, and a diaphragm whose outer periphery is coupled to the speaker frame and whose inner periphery is adhesively coupled to a voice coil fitted into a magnetic gap of the magnetic circuit. A metal terminal having one end joined to the other end of the tinsel wire joined to the coil end wound around the voice coil, and the other end serving as a connector terminal for receiving an external electric signal; A speaker housing formed integrally with the resin-made speaker frame on which the speaker frame is mounted, and a connector housing formed near the outer periphery of the speaker frame, wherein a bent portion is provided at an intermediate portion of the metal terminal, A groove for inserting the metal terminal is provided in the connector housing, and an outer periphery of the diaphragm is covered so as to cover a part or all of the groove. Speaker was attached to the speaker frame. At least a magnetic circuit, a resin speaker frame coupled to the magnetic circuit, and a diaphragm whose outer periphery is coupled to the speaker frame and whose inner periphery is adhesively coupled to a voice coil fitted into a magnetic gap of the magnetic circuit. A metal terminal having one end joined to the other end of the tinsel wire joined to the coil end wound around the voice coil, and the other end serving as a connector terminal for receiving an external electric signal; A speaker housing formed integrally with the resin-made speaker frame on which the speaker frame is mounted, and a connector housing formed near the outer periphery of the speaker frame, wherein a bent portion is provided at an intermediate portion of the metal terminal, A groove for inserting the metal terminal is provided in the connector housing, and after the metal terminal is inserted, a part or all of the groove is vibrated. Speaker to be covered with an adhesive which is used at the time of paste.

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