JP2000164303A - Fitting device of jack to printed circuit of portable telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately position and fit a jack to the printed circuit of a base and to ground the circuit of the jack within a small occupied space. SOLUTION: This fitting device is made of a U-shaped member 3 cut out from a metal sheet and bent into a U-shape, and it is coupled with a groove 4 extending over the upper face and two side faces of the insulator of the base of a jack. Two leg sections 7 have tab sections 8 bent perpendicularly outward at the tips to be fitted to a printing circuit, and a base section 9 has a strip 10 to be kept in elastic contact with the contact piece portion 2 of the jack.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention allows, on the one hand, the positioning and mounting of a base for an audio-stereo jack on a printed circuit of a mobile phone, and, on the other hand,
The present invention relates to a device that enables electrical contact with a contact portion of the jack.

[0002]

BACKGROUND OF THE INVENTION With the demand for ever smaller mobile phones, one of the technical problems frequently encountered at present is that of separate functions, typically where separate devices are used. The difficulty of accommodating each of these devices in an increasingly smaller space.

A problem of this kind arises, for example, when trying to connect an audio-stereo jack to the printed circuit of a mobile phone. In practice, this connection requires the attachment of the jack base to the printed circuit and accurate positioning, while the grounding of the jack to the circuit is required.

[0004]

In a known portable telephone,
The functions described above have been implemented by separate means, each occupying space in the mobile phone. This limits the possibility of downsizing the mobile phone, and also increases the number of parts to be mounted, resulting in a higher price. The present invention provides an apparatus that can simultaneously guarantee both of the above functions.

[0005]

In order to achieve this object, an apparatus according to the present invention comprises a member cut out of a metal plate and bent in a U-shape.
The jacks are respectively engaged in grooves extending to the upper surface of the insulator of the base of the jack and two side surfaces of the insulator,
The two legs of the U-shaped member have tabs at their ends bent outwardly at right angles and designed to be attached to a printed circuit, the base of the U-shaped member being the jack. And a strip that elastically contacts a part of the contact.

Accordingly, the cut-out and U-shaped member has the function of positioning the jack base on the printed circuit and accurately mounting the same, and the function of contacting the contact portion, for example, the ground of the jack. Guaranteed at the same time. The size can be reduced by engaging the U-shaped bent member with the groove of the insulator of the jack.

[0007] Other features and advantages of the invention will become apparent from the following description, given by way of non-limiting example, with reference to the accompanying drawings, which show perspective views of the device according to the invention.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a printed circuit of a mobile phone,
FIG. 3 is an exploded perspective view showing a device that allows the base for the audio-stereo jack to be positioned and mounted, while allowing electrical contact with the contact portion 2 of the jack.

According to the present invention, the apparatus includes the member 3 cut out from the metal plate and bent in a U-shape. The U-shaped member 3 is provided on the upper surface 5 of the insulator of the jack 1.
And engages in a groove 4 extending on each of the two sides of the insulator. The two legs 7 of this U-shaped member 3 have at their ends a tab 8 which is bent at right angles outwardly and which is designed to be attached to a printed circuit by soldering or screwing. Have. The base 9 of the U-shaped member 3 has a strip 10 which resiliently contacts the contact part 2 of the jack.

The depth of the groove 4 is substantially equal to the thickness of the metal plate from which the U-shaped member 3 is cut. As a result, the outer surface of the U-shaped member 3 is substantially flush with the outer surface of the insulator of the base of the jack 1.

Furthermore, each leg 7 of the U-shaped member 3 has a hole 11 on two sides of the insulator of the jack, which is click-stopped by an engaging projection 12 projecting into the groove 4.

FIG. 1 shows, on the other hand, the base 9 of the U-shaped member 3.
1 shows a strip 10 extending from one side 13 perpendicular to the base 9. Furthermore, the strip 10 is bent downward and forms an angle α with the plane P of the base 9 of the U-shaped member 3. In addition, this strip 10
Are engaged in grooves 14 formed on the upper surface of the insulator of the jack 1.

Also, as shown in FIG. 1, the end of the strip 10 is provided with a curved region 15 designed to resiliently contact the ground contact portion 2 of the jack. I have.

The main advantages of the above-described device are as follows. The U-shaped member 3 is accurately positioned in the printed circuit of the mobile phone by engagement with the groove 4 and its tab portion 8;
And attached. An elastic strip 10 integrally formed with the U-shaped member 3 can be brought into contact with the contact part 2 of the jack; The size of the assembly can be reduced to a few mm by the engagement of the U-shaped member 3 including the strip 10 in the groove 4 (the jack itself is 2.5 mm in diameter).

Of course, the present invention is not limited to the above-described embodiment, and various other changes can be made without departing from the scope of the present invention.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Jack 2 Contact part 3 U-shaped member 4 Groove 7 Leg 8 Tab part 9 Base 10 Elastic strip 11 Hole 12 Engagement projection 13 One side of base 14 Groove 15 Curved area α Angle

Claims (8)

[Claims] 1. A device for positioning and mounting a base for an audio-stereo jack (1) on a printed circuit of a mobile phone, while allowing electrical contact with a contact portion of the jack, comprising: Cut out from a board and bent into a U-shape, base (9)
And a U-shaped member (3) composed of a groove (4) extending over the upper surface and two side surfaces of the insulator of the base of the jack. ), The two legs (7) of the U-shaped member (3)
A tab (8) bent outwardly at a right angle at the tip and configured to be attached to the printed circuit, wherein the base (9) of the U-shaped member (3) is a contact of the jack; Device comprising an elastic strip (10) brought into resilient contact with the part (2). 2. The depth of said groove (4) is equal to the thickness of the metal plate from which said U-shaped member (3) is cut, so that the outer surface of said U-shaped member (3) is 2. The insulator according to claim 1, wherein the insulator is flush with an outer surface of the insulator.
The described device. 3. Each leg (7) of said U-shaped member (3).
Are engaging projections (12) protruding from each side of the insulator.
Device according to claim 1, characterized in that it has a hole (11) that is engaged with the hole. 4. The elastic strip (10) includes
Device according to claim 1, characterized in that it extends from one side (13) of the base (9) of the figure-shaped member (3) perpendicular to the base (9). 5. The elastic strip (10) is bent downward and forms an angle (α) with the plane of the base (9) of the U-shaped member (3). 5. The device of claim 4, wherein 6. The device according to claim 4, wherein said elastic strip is engaged in a groove formed in a top surface of said insulator. 7. One end of said elastic strip (10)
Device according to claim 4, characterized in that it has a curved area (15) which is brought into resilient contact with the contact part (2) of the jack. 8. The device according to claim 7, wherein the contact part is a ground contact.