JP2002118892A - Connector for vibration parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration parts connector to be surely connected to a printed wiring board (120) without using a soldering connection process even when the vibration parts themselves are vibrated. SOLUTION: A conductive terminal chip (3) for electrically connecting between the terminal of the vibration parts and the conductive pattern of the printed wiring board (120) is inserted and molded in an elastic housing (2) for storing the vibration parts. Since the housing (2) is held between a casing (131) and the printed wiring board (120), the terminal chip (3) is elastically brought into contact with the terminal and the conductive pattern without using the soldering connection process. Even when the vibration parts are vibrated, the terminal chip (3) is excited by the housing (2) and follows the vibration of the terminal, so that the chip (3) maintains elastic contact without being instantaneously interrupted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating component connector for accommodating a vibrating component such as a microphone, a speaker, a buzzer and the like, and for electrically connecting to a printed wiring board.

[0002]

2. Description of the Related Art In a communication device such as a mobile phone, a vibrating component such as a microphone or a speaker is used for transmitting an incoming call or talking. These vibrating components are mounted in the housing of the device, and are electrically connected to the conductive pattern of the printed wiring board on the communication device side to supply power to the vibrating components and output a sound collection signal. There is a need.

However, since the vibrating component itself vibrates, its terminals cannot be electrically connected to the conductive pattern directly by soldering or the like, and both ends are connected by using lead wires that are soldered to the terminal and the conductive pattern. I was The connection operation using the lead wire requires a solder connection operation, which is extremely troublesome and may cause an erroneous connection. In addition, the use of solder has been a cause of environmental destruction.

In view of the above, there has been proposed a vibrating component connector 100 that connects a vibrating component and a printed wiring board by using a conductive clip spring that makes elastic contact with the printed wiring board without using solder.

FIGS. 7 to 9 show this conventional connector 100 for a vibration component. The connector 100 for a vibration component will be described in more detail with reference to these drawings. Insulating case 101 made of resin
, A conductive clip spring piece 102, and an elastic cover 103 formed of synthetic rubber.

[0006] The insulating case 101 includes a disc-shaped support plate 10.
1a and a cylindrical frame 101b vertically suspended from the periphery thereof. The inside surrounded by the cylindrical frame 101b is a housing chamber 106 for housing the columnar vibration component 110.

The clip spring piece 102 is formed by folding a strip-shaped metal piece into a substantially U-shape.
2a leaves the terminal contact portion 104 at the tip,
It is integrally formed and fixed in a support plate 101b forming the top surface of the storage chamber 106.

[0008] As shown in FIG.
With the one side 102a fixed, the terminal contact portion 104 is provided on the inner top surface of the accommodation room 106 with the accommodation room 106a.
And the other side 102b of the U-shape is cantilevered at one side 102a, passes through the notch 101c of the support plate 101a, and the substrate contact portion 105 formed at its free end is
It protrudes above the support plate 101a.

The elastic cover 103 is, as shown in FIG.
A vibration component 110 is provided in the accommodation chamber 106 of the insulating case 101.
Is formed in a cylindrical shape with a bottom so as to cover the entirety of the housing, and while extending and covering the vibration component 110 and the insulating case 101, the ring-shaped flange 103a at the inner edge of the opening is covered around the support plate 101a. Cover and attach. The accommodated vibration component 110 is urged toward the support plate 101a by the elasticity of the stretched elastic cover 103, and the vibration component 110
(Not shown) makes elastic contact with the terminal contact portion 104 facing the support plate 101a.

The vibration component connector 100 containing the vibration component 110 in this manner is further fixed by being sandwiched between the housing 131 of the communication device and the printed wiring board 120, as shown in FIG. When the other side 102b of the clip spring piece 102 is bent, the board contact portion 105 at its free end elastically contacts a conductive pattern (not shown) of the printed wiring board 120, and the clip spring piece 102
The vibration component 110 and the printed wiring board 120 are electrically connected via the.

[0011]

According to the conventional vibration component connector 100, the vibration component 110 can be electrically connected to the printed wiring board 120 without a solder connection step, and the whole is covered with the elastic rubber 103. In addition, since the clip spring piece 102 and the conductive pattern of the printed wiring board 120 are in elastic contact with each other, even if the communication device receives an impact due to a drop or the like, the vibration component 110 and the printed wiring board 120 are not affected.
Is difficult to be disconnected.

However, since the terminals of the vibrating component 110 have a structure in which the elastic rubber 103 elastically contacts the terminal contact portion 104 fixed to the rigid support plate 101a, the terminal of the vibrating component 110 itself vibrates. There was a risk that contact would be interrupted momentarily.

Also, the other side 102 of the clip spring piece 102
b acts as an elastic spring piece to cause the board contact portion 105 to elastically contact the printed wiring board 120. In order to allow the board to act as a spring, a certain length (spring span) is provided on the other side 102b and an insulating case is provided. It is necessary to secure a certain bending space for elastically deforming 101. For example, in the vibration component connector 100, a relief groove 107 for preventing interference with the bent clip spring piece 102 is formed in the support plate 101a.

For this reason, the support plate 101a and the elastic cover 1
The ring-shaped flange 103a of 03 needs to have a predetermined thickness, and the height of the vibrating component connector 100 increases, which limits the miniaturization required for a communication device containing the vibrating component 110. I was

Further, the insulating case 101 and the elastic cover 10
In the case where the vibrating parts are microphones or the like having directivity, because not only extra work is required but also a gap is generated between the two parts to manufacture and integrate the components 3 individually, and the gap is generated between the two components. In addition, sound leaks and ambient noise enter, which affects sound collection characteristics.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a connector for a vibrating component which does not have a solder connection step and can be securely connected to a printed wiring board even if the vibrating component itself vibrates. I do.

It is another object of the present invention to provide a vibrating component connector capable of reducing the overall height.

It is another object of the present invention to provide a vibrating component connector that reduces the number of components, increases the hermeticity of the vibrating component, and improves the operating characteristics of the vibrating component to be housed.

[0019]

In view of the above-mentioned object, a vibration component connector according to a first aspect of the present invention is disposed between a housing and a printed wiring board, and has a housing chamber for surrounding and housing the vibration component. An elastic housing, and a conductive terminal piece fixed by integral molding to a peripheral wall portion around the accommodation room of the elastic housing and having a first contact portion facing the accommodation room and a second contact portion facing the printed wiring board, The first contact portion of the conductive terminal piece is brought into elastic contact with the terminal of the vibrating component housed in the housing chamber by attaching and attaching the elastic housing accommodating the vibrating component between the housing and the printed wiring board, The second contact portion is brought into elastic contact with the conductive pattern of the printed wiring board, and the vibrating component is electrically connected to the printed wiring board.

When the elastic housing is sandwiched between the housing and the printed wiring board, the entire elastic housing is compressed,
It is positioned and fixed on the printed wiring board. At the same time, the peripheral wall portion on which the conductive terminal piece is integrally formed is also compressed, and the first contact portion and the second contact portion elastically contact the terminal of the vibration component and the conductive pattern of the printed wiring board.

Since the first and second contact portions are brought into elastic contact with each other by the elasticity of the peripheral wall portion itself for fixing the conductive terminal pieces, there is no need to provide a bending space for the spring, and the overall height is reduced. be able to.

Since the vibrating component is surrounded by the accommodating chamber of the elastic housing, the vibrating component freely vibrates as the accommodating chamber expands and contracts. The terminals make elastic contact and do not break instantaneously.

Further, since the conductive terminal piece is integrally formed with the elastic housing for housing the vibration component, the number of components is reduced, and the hermeticity of the vibration component is improved.

According to a second aspect of the present invention, there is provided a connector for a vibration component, wherein the strip-shaped metal piece is folded back in a substantially U-shape along the longitudinal direction to form conductive terminal pieces, and the first contact formed on both sides of the substantially U-shape. The first contact portion and the second contact portion are exposed on both surfaces of the peripheral wall portion by insert molding the peripheral wall portion while leaving the portion and the second contact portion.

Since the conductive terminal piece folded in a substantially U-shape is insert-molded on the peripheral wall, the first contact portion and the second contact portion are accurately positioned with the peripheral wall interposed therebetween, and are exposed on both surfaces thereof. I do. The first contact portion and the second contact portion elastically contact the terminal of the vibrating component and the conductive pattern of the printed wiring board, respectively, by expanding and contracting the peripheral wall portion.

According to a third aspect of the present invention, at least one of the first contact portion and the second contact portion is formed so as to be curved outwardly of the peripheral wall portion on one side of a substantially U-shape. And

Since at least one of the first contact portion and the second contact portion is curved outward of the peripheral wall portion, the terminal portion of the vibrating component or the conductive pattern of the printed wiring board is securely contacted without surface contact. .

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vibration component connector 1 according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a longitudinal sectional view showing the vibrating component connector 1 and the vibrating component 110, FIG. 2 is a longitudinal sectional view showing a state in which the vibrating component connector 1 is attached, and FIGS. Plan view, side view, bottom view,
FIG. 6 is a perspective view of the terminal strip 3.

The vibrating component 110 exemplified in the present embodiment
Is a microphone having directivity for sound collection in the lower part of FIG. 1, and is surrounded by a cylindrical insulating cover having a circular opening on the plane side, and one terminal serving as an input / output terminal has a circular center in the circular opening. Meanwhile, the other terminal faces in a ring shape insulated from the terminal (both are not shown).

The vibrating component connector 1 is
And an elastic housing 2 accommodating the elastic housing 2.
And a pair of terminal pieces 3 and 3 integrally attached to the terminal piece.

The elastic housing 2 is formed of an insulating elastomer such as silicon rubber, and has a cylindrical portion 6 extending integrally from a peripheral edge of a disk-shaped top plate portion 5. The top plate portion 5 and the cylindrical portion 6 form a hollow cylindrical accommodation chamber 4 that surrounds and accommodates the vibration component 110. The lower end of the cylindrical portion 6 is a flange 6a inclined toward the center thereof, and the inner diameter thereof is slightly smaller than the outer diameter of the columnar vibration component 110. Therefore, the vibration component 110
The collar 6a is accommodated in the hollow accommodation chamber 4 while expanding the diameter of the flange 6a. After the collar 6a is accommodated, the collar 6a does not come off due to the elasticity of the cylindrical portion 6.

The terminal pieces 3, 3 are formed by punching a conductive metal plate such as bronze or the like into a strip shape and folding it in a substantially U-shape along its longitudinal direction as shown in FIG. The internal contact portion 3b and the external contact portion 3c are connected to both ends of the character-like connecting portion 3a.

The internal contact portion 3b serves as a first contact portion which makes elastic contact with the terminal of the vibrating component 110 as described later, and the external contact portion 3c serves as a second contact portion which makes elastic contact with the conductive pattern of the printed wiring board 120. Work. In order to further secure the electrical connection by these elastic contacts, the inner contact portion 3b and the outer contact portion 3c
Are curved outwardly in an arc shape, and contact ribs 9 are formed by stamping from the back side along the center of the arc shape. In order to further maintain contact reliability on these contact surfaces,
Surface treatment such as gold plating may be performed.

In order to position the terminal strip 3 during insert molding described later, a circular relief hole 3d is formed in the connecting portion 3a on the side of the external contact portion 3c.
A positioning plate 3e is continuously provided on the front end side of the (see FIG. 6).

The pair of terminal pieces 3, 3 are formed in the same shape, and as shown in FIGS.
Then, insert molding is performed on the top plate 5 serving as a peripheral wall around the accommodation chamber 4 except for the external contact portion 3c.

That is, when the elastic housing 2 is formed, the pair of terminal pieces 3, 3 are positioned and supported at a position where the top plate 5 is formed in the mold, and the insulating elastomer to be melted is caused to flow. Insert molding. The positioning of the terminal piece 3 at the time of molding is performed by sandwiching the connecting portion 3a on the inner contact portion 3b side between the core pin of the mold inserted into the escape hole 3d and the cavity, and positioning between the other core pin and the cavity. The plate portion 3e is clamped and fixed in a mold.

Accordingly, holes 7 are formed in the top plate 5 after the insert molding by these dies. The terminal piece 3 insert-molded on the top plate portion 5 has an inner contact portion 3b and an outer contact portion 3c which are curved outward, both surfaces of the top plate portion 5, that is, an inner top surface facing the accommodation chamber 4,
It is exposed on a plane facing the printed wiring board 120.

At this time, as shown in FIGS. 3 and 5, the internal contact portion 3b and the external contact portion 3c of one terminal piece 3 are exposed at the inner top surface and the center of the plane, and the other terminal piece 3 is exposed. The internal contact portion 3b and the external contact portion 3c are exposed at positions off the center. The space between the inner contact portion 3b and the outer contact portion 3c is filled with an insulating elastomer.

When the cylindrical part 6 of the vibrating component connector 1 thus configured is opened and the vibrating part 110 is inserted into the housing chamber 4 with the exposed surface of the terminal facing upward, the flange 6a vibrates as described above. By covering the periphery of the bottom surface of the component 110 and sandwiching it between the top plate portions 5, the vibration component 1
10 is positioned and accommodated in the accommodation room 4.

The vibration component 110 housed in the housing chamber 4
Since the pair of terminals are arranged concentrically, they face the internal contact portions 3b, 3b of the pair of terminal pieces 3, 3, respectively, regardless of the rotational position.

As shown in FIG. 2, the vibration component connector 1 containing the vibration component 110 is disposed on a housing 131 of an electronic device in which the vibration component 110 is used, and is sandwiched and fixed between the printed wiring board 120 and the electronic component. Is done.

Vibration component 110 of printed wiring board 120
On the surface facing the same as the terminal of the vibration component 10,
Around one of the circular conductive patterns, the other conductive pattern faces concentrically (not shown).

The vibrating component 110 is sandwiched between the housing 131 and the printed wiring board 120 such that the external contact portion 3c exposed at the center of the outer surface of the top plate portion 5 faces the circular conductive pattern. The external contact portions 3c, 3c of the pair of terminal pieces 3, 3 face the pair of conductive patterns of the printed wiring board 120, respectively.

The relative positioning between the printed circuit board 120 and the printed circuit board 120 is determined by the elastic housing 2 and the printed circuit board 12.
This may be done by forming irregularities between zeros and engaging each other.

By sandwiching the vibrating component connector 1 between the housing 131 and the printed wiring board 120, the entire elastic housing 2 and the housing chamber 4 are compressed. As a result, the terminals of the vibrating component 110 are connected to the ribs 9 of the internal contact portions 3b facing each other and to the ribs 9 of the external contact portions 3c and 3c.
Each of the opposing conductive patterns of the printed wiring board 120 elastically contacts with a predetermined contact pressure, and a pair of terminals of the vibrating component 110 is connected via a pair of terminal pieces 3 to a pair of conductive patterns of the corresponding printed wiring board 120. Electrical connection without solder connection.

The vibrating component 110 has an elastic housing 2 except for the lower part of the microphone which has directivity for sound collection.
Therefore, the microphone is completely surrounded, so that sound leakage and noise from outside do not enter, and the operational characteristics of the microphone are improved.

Further, since the vibration component 110 is entirely covered with the elastic housing even if the vibration component 110 is positioned and fixed,
The vibration is not restricted and vibrates freely.

Further, since the terminal piece 3 is filled with the elastic housing 2 made of an insulating elastomer while being substantially U-shaped, the terminal piece 3 does not have a predetermined spring span but has a predetermined contact pressure. Vibrating component 110 and printed wiring board 120
Elastic contact. In addition to this,
Although the terminal also vibrates due to the vibration of the vibrating component 110, the internal contact portion 3b of the terminal strip 3 is urged by the insulating elastomer on the back side and follows the vibration of the terminal, so that the elastic contact is not interrupted.

The present invention is not limited to the above-described embodiment. For example, even if the elastic housing 2 is open on the side and the vibration component 110 is housed in the housing chamber 4 from the side. Good.

Further, the terminal piece 3 does not necessarily have to be formed by folding back into a substantially U-shape, and may be formed integrally with the cylindrical portion 6 which is another peripheral wall portion. In this case, the cylindrical portion 6 is sandwiched between the vibration component 110 and the printed wiring board 120.

Although the elastic housing 2 is pressed by the housing 131, the vibrating component 110 housed in the housing chamber 4 is directly pressed by the housing 131 to connect the vibrating component connector 1 with the printed wiring board 120. It may be sandwiched between.

[0052]

As described above, according to the present invention, the terminal of the vibrating component is connected to the conductive pattern of the printed wiring board while the vibrating component is freely vibrated using only two types of components without a solder connection process. Can be electrically connected.

Further, since the terminal piece is attached by integral molding when the elastic housing is molded, it can be attached without assembling.

Further, since the vibrating component is surrounded by the integral elastic housing, there is no noise or sound leakage from the outside, and the operating characteristics of the accommodated vibrating component can be improved.

Further, since the first contact portion is urged by the elastic housing and follows the vibration of the vibrating component, even if the vibrating component itself vibrates, the terminal and the first contact portion are momentarily disconnected. There is no.

According to the second aspect of the present invention, the peripheral wall of the elastic housing is interposed between the first contact portion and the second contact portion of the attached terminal piece. There is no need to provide a predetermined spring span on the conductive terminal strips to be urged or to secure a flexing space therefor, and the height of the vibration component connector can be reduced.

According to the third aspect of the present invention, in addition, since the first contact portion or the second contact portion is curved outward, the contact reliability is improved without surface contact with the other party. I do.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view showing a vibration component connector 1 and a vibration component 110 according to the present invention.

FIG. 2 is a longitudinal sectional view showing a state where the vibration component connector 1 is attached.

FIG. 3 is a plan view of the vibration component connector 1. FIG.

4 is a side view of the vibration component connector 1. FIG.

FIG. 5 is a bottom view of the vibration component connector 1. FIG.

FIG. 6 is a perspective view of a terminal piece 3;

FIG. 7 is a longitudinal sectional view showing a state in which a vibration component 110 is housed in an insulating case 101 of a conventional vibration component connector 100.

8 is a longitudinal sectional view of the vibration component connector 100 showing a state of being covered with an elastic cover 103. FIG.

FIG. 9 is a longitudinal sectional view showing a state where a conventional vibration component connector 100 is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector for vibration parts 2 Elastic housing 3 Terminal piece 3b Internal contact part (first contact part) 3c External contact part (second contact part) 4 Housing room 5 Peripheral wall part 110 Vibration part 120 Printed wiring board 131 Electronic device housing

Claims (3)

[Claims] An enclosure (131) and a printed wiring board (1) are provided.
20), an elastic housing (2) in which a housing chamber (4) for surrounding and housing the vibrating component (110) is formed; and a peripheral wall around the housing chamber (4) of the elastic housing (2). The conductive terminal piece (3) fixed to the (5) by integral molding and having a first contact part (3b) facing the accommodation chamber (4) and a second contact part (3c) facing the printed wiring board (120). ), And an elastic housing (2) accommodating the vibration component (110).
Is mounted between the housing (131) and the printed wiring board (120) so that the first contact portion (3b) of the conductive terminal strip (3) is accommodated in the accommodation chamber (4). Elastic contact is made with the terminal of (110), and the second contact part (3c) is brought into elastic contact with the conductive pattern of the printed wiring board (120), and the vibrating component (110) is electrically connected to the printed wiring board (120). A connector for a vibrating component, comprising: 2. A conductive terminal strip (3) formed by folding a strip-shaped metal piece in a substantially U-shape along a longitudinal direction, and a first contact portion (3b) formed on both sides of the substantially U-shape. The second contact portion (3
The first contact portion (3b) and the second contact portion (3c) are exposed on both surfaces of the peripheral wall portion (5) by insert-molding the peripheral wall portion (5) while leaving c). 4. The connector for a vibration component according to item 1. 3. A first contact part (3b) and a second contact part (3).
The vibrating component connector according to claim 2, wherein at least one of c) is formed so as to be curved outward of the peripheral wall portion on one side of a substantially U-shape.