JPH11307901A - Electronic device and method for manufacturing the electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a terminal part and a connector from solder peeling by firmly securing a terminal member by a supporting part of the terminal member between a printed board and a frame body in a notch part. SOLUTION: A notch part 1a, a pair of corresponding parts 1b made of both side steps, an equipping chip 1c which is adjacent to this and a convex part 1e of an upper side 1d of the notch part 1a are provided at the lower part of a metallic frame body 1 which opens up and down. A conductive pattern 3 is formed on the lower surface of a printed board 2 having a projecting part 2a and a hole 2b and several electric parts which are connected with the conductive pattern 3 are provided on the upper and lower surfaces. A supporting part 4a made of synthetic resin insulating material is provided at a terminal member 4 and an L type metallic terminal part 4b which is buried and is equipped with the supporting part is provided. The supporting part 4a is mounted on the upper surface of the printed board 2, the terminal part 4b is inserted through the hole 2b and the terminal part 4b is soldered with the conductive pattern. The projecting part 2a is made to locate at the notch part 1a of the frame body 1 and an equipping chip 1c is folded by contacting with a pair of corresponding parts 1b from the lower part and is equipped with the frame body 1 which put the printed board 2 between.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electronic apparatus suitable for use in a television tuner or the like.

[0002]

2. Description of the Related Art A conventional electronic device will be described with reference to FIGS. 4 to 6. A rectangular frame 21 made of a metal plate and having an open top and bottom is provided with a notch 21a provided at a lower portion, It has a pair of abutting portions 21b formed of step portions provided on both sides of the notch portion 21a, and a mounting piece 21c provided adjacent to the pair of abutting portions 21b. The printed board 22 has a protrusion 22a and a hole 22b. Further, a conductive pattern 23 is formed on the lower surface of the printed board 22, and the upper and lower surfaces of the printed board 22 are connected to the conductive pattern 23. Various electrical components (not shown) are provided.

[0003] The printed circuit board 22 is
In a state where 2a is positioned in the cutout portion 21a of the frame 21, the lower portion of the frame 21 is stored in the frame 21 from below, and
With the protrusion 22a in contact with the pair of abutting portions 21b of the frame 21, the mounting piece 21c is bent, and the printed board 22 is sandwiched between the abutting portion 21b and the mounting piece 21c, and the printed board 22 is 21.

The terminal member 24 has a support portion 24a made of a synthetic resin insulating material and a metal terminal portion 24b buried and attached to the support portion 24a. The part 24 a is placed on the upper surface of the printed board 22, and the terminal part 24 b is inserted into the hole 22 b of the printed board 22, and the terminal part 24 b is soldered to the conductive pattern 23. When the terminal member 24 is attached to the printed circuit board 22, the support portion 24a is located within the cutout portion 21a, and a gap is provided between the support portion 24a and the upper side 21d of the cutout portion 21a. ing. Such an electronic device is incorporated in a television set, and is used by connecting a connector (not shown) to the terminal portion 24b.

[0005] In such a method of manufacturing an electronic device, first, various electric components (not shown) and a support portion 24 a of the terminal member 24 are placed on the upper surface of the printed circuit board 22. The printed circuit board 22 is transported to a dip soldering apparatus, and the electric component is soldered to the conductive pattern 23 and the terminal portions 24b of the terminal members 24 are soldered to the conductive pattern 23. Next, the frame 21 is combined with the printed circuit board 22 in a state where the notch 21a is aligned with the support portion 24a. Thereafter, the mounting piece 21c is bent, and the printed circuit board 22 and the frame 21 are attached. Manufacturing is completed. In such a manufacturing method, in the step of soldering the terminal member 24 to the printed board 22, the terminal member 24 is moved to the position shown in FIG.
In the above, the state was inclined as shown by the line S.

[0006]

In a conventional electronic device, a support portion 2 of a terminal member 24 mounted on a printed circuit board 22 is provided.
4a and the upper side 21d of the notch 21a of the frame 21, there is a gap, so that the support of the terminal member 24 is weak. Therefore, when the connector is connected to the terminal 24b, the terminal 2
When a strong external force is applied to 4a, there is a problem that the soldered portion is peeled off. In the manufacture, the terminal member 2
In the step of soldering the printed circuit board 4 to the printed circuit board 22, the terminal member 24 is inclined as shown by the line S due to the vibration during the movement of the printed circuit board 22 or the weight of the terminal portion 24b. However, there is a problem that the connection with the connector cannot be performed when the tilting state is not achieved.

[0007]

Means for Solving the Problems As a first means for solving the above problems, a frame made of metal and having a notch, a printed board attached to the frame and having a conductive pattern, are provided. A terminal member attached to the printed circuit board, wherein the terminal member is configured such that a metal terminal portion is attached to a support portion made of an insulating material, and the terminal portion of the terminal member is soldered to the conductive pattern. And the support portion of the terminal member is sandwiched between the printed circuit board and the frame within the cutout portion. Further, as a second solution, the frame body and the supporting body are provided on opposite sides of the frame body,
Or a configuration in which a projection is provided on at least one of the support portions, and the frame and the support are in contact with each other at the projection, and the support is sandwiched between the printed circuit board and the frame. did.

As a third solution, the terminal member is constituted by attaching a metal terminal portion to a support portion of an insulating material, and the support portion is mounted on a printed circuit board having a conductive pattern. The support portion is located in a notch provided in the frame made of metal, and the printed board and the frame are combined, and the support is sandwiched between the printed board and the frame, The terminal portion and the conductive pattern are soldered. Further, as a fourth solution, a convex portion is provided on at least one of the frame and the support portion on a side opposite to the frame and the support portion, and the frame and the support portion are provided at the convex portion. And the terminal portion and the conductive pattern are soldered in a state where the supporting portion is held between the printed circuit board and the frame body.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic device according to the present invention and a method for manufacturing the electronic device will be described with reference to FIGS.
FIG. 2 is a plan view of the electronic device of the present invention, FIG. 2 is an enlarged side view of a main part of the electronic device of the present invention, and FIG.

The structure of an electronic device according to the present invention will be described with reference to FIGS. 1 to 3. A rectangular frame 1 made of a metal plate and having an open top and bottom is provided with a cutout 1a provided at a lower portion. ,
A pair of abutting portions 1b formed of step portions provided on both sides of the notch portion 1a, a mounting piece 1c provided adjacent to the pair of abutting portions 1b, and a protrusion provided on an upper side 1d of the notch portion 1a. 1e. The printed circuit board 2 has a projection 2a and a hole 2b. Further, a conductive pattern 3 is formed on the lower surface of the printed circuit board 2, and the upper and lower surfaces of the printed circuit board 2 are connected to the conductive pattern 3. Various electric components (not shown) are provided.

The terminal member 4 has a support portion 4a made of a synthetic resin insulating material, and a metal L-shaped terminal portion 4b embedded and attached to the support portion 4a. In 4, the support portion 4 a is placed on the upper surface of the printed board 2, and the terminal portion 4 b is inserted into the hole 2 b of the printed board 2, and the terminal portion 4 b is soldered to the conductive pattern 3. Then, the printed circuit board 2 to which the terminal member 4 is attached
Is stored in the frame 1 from the lower part of the frame 1 with the projection 2a positioned at the notch 1a of the frame 1, and the projection 2a is inserted into the pair of contact portions 1b of the frame 1. In the state of contact
The printed circuit board 2 is mounted on the frame 1 by bending the mounting piece 1c and sandwiching the printed circuit board 2 between the contact portion 1b and the mounting piece 1c.

At this time, the projection 1e of the frame 1 contacts the upper surface of the support portion 4a of the terminal member 24, and the support portion 4a
Is in contact with the printed circuit board 2 so that the support portion 4a is sandwiched between the frame 1 and the printed circuit board 2. Then, such an electronic device is incorporated in a television set, and a connector (not shown) is connected to the terminal portion 4b.
To be used.

In such a method of manufacturing an electronic device, first, various electric components (not shown) and a supporting portion 4 a of the terminal member 4 are mounted on the upper surface of the printed circuit board 2.
Next, the frame 1 is combined with the printed circuit board 2 with the notch 1a of the frame 1 positioned on the protrusion 2a of the printed circuit board 2 and the support 4a of the terminal member 4. At this time,
The projection 1e of the frame 1 comes into contact with the upper surface of the support 4a of the terminal member 4. Next, the mounting piece 1c of the frame 1 is bent, and the frame 1 and the printed circuit board 2 are joined. At this time,
The support portion 4a of the terminal member 4 is sandwiched between the protrusion 1e of the frame 1 and the printed circuit board 2. Next, in this state,
The printed circuit board 2 and the frame 1 are conveyed to a dip soldering apparatus, and the electric components are soldered to the conductive pattern 3 and the terminal portions 4b of the terminal members 4 are soldered to the conductive pattern 3, whereby the manufacture is completed. I do. In such a manufacturing method, the terminal member 4 is soldered in a state of being sandwiched between the frame 1 and the printed board 2. Can be taken in state.

The projection 1e provided on the frame 1 has
Alternatively, a plurality of protrusions may be provided, and instead of providing the protrusion 1e on the frame, a protrusion of a ridge is provided on the support portion 4a of the terminal member 4, and this protrusion is applied to the upper side 1d of the frame 1. You may make it contact.

[0015]

According to the electronic apparatus of the present invention, the support portion 4a of the terminal member 4 is positioned within the cutout portion 1a of the frame 1, and the support portion 4a is sandwiched between the frame 1 and the printed circuit board 2. Therefore, the attachment of the terminal member 4 becomes strong, and the soldering does not come off even when the connector is attached to or detached from the terminal portion 4b, and a long-life electronic device can be provided. In addition, since the protrusion 1e is provided and the frame 1 and the terminal member 4 are brought into contact with each other by the protrusion 1e, a reliable contact can be obtained with a simple configuration, and the holding of the terminal member 4 can be achieved. A more reliable electronic device can be provided.

In a state where the support portion 4a of the terminal member 4 is sandwiched between the frame 1 and the printed board 2, the terminal portion 4b is soldered to the conductive pattern 3. Thus, an electronic device that can be securely connected to the terminal portion 4b can be provided. Further, in a state where the protrusion 1e is provided and the frame 1 and the terminal member 4 are in contact with each other by the protrusion 1e,
Since the terminal portion 4b is soldered to the conductive pattern 3, it is possible to provide an electronic device in which the terminal member 4 is more reliably held.

[Brief description of the drawings]

FIG. 1 is a plan view of an electronic device of the invention.

FIG. 2 is an enlarged side view of a main part of the electronic device of the present invention.

FIG. 3 is an enlarged cross-sectional view of a main part of the electronic device of the present invention.

FIG. 4 is a plan view of a conventional electronic device.

FIG. 5 is an enlarged side view of a main part of a conventional electronic device.

FIG. 6 is an enlarged sectional view of a main part of a conventional electronic device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 1a Notch 1b Contact part 1c Mounting piece 1d Upper side 1e Convex part 2 Printed circuit board 2a Projection 2b Hole 3 Conductive pattern 4 Terminal member 4a Support part 4b Terminal part

Claims (4)

[Claims] 1. A frame made of metal and having a notch, a printed board attached to the frame and having a conductive pattern, and a terminal member attached to the printed board, the terminal member comprising: A terminal portion of a metal is attached to a support portion made of an insulating material, the terminal portion of the terminal member is soldered to the conductive pattern, and the support portion of the terminal member is in the cutout portion. An electronic device sandwiched between the printed circuit board and the frame. 2. A projecting portion is provided on at least one of the frame and the supporting portion on a side opposite to the frame and the supporting portion, and the frame and the supporting portion abut on the projecting portion. The electronic device according to claim 1, wherein the support portion is sandwiched between the printed board and the frame. 3. The terminal member is configured by attaching a metal terminal portion to a support portion of an insulating material, and the support portion is mounted on a printed circuit board having a conductive pattern, and the support portion is formed of a metal frame. The terminal portion and the conductive pattern in a state where the printed circuit board and the frame are coupled to each other and the support portion is sandwiched between the printed circuit board and the frame while being positioned in a notch provided in the body. And a method of manufacturing an electronic device, comprising: 4. A projection is provided on at least one of the frame and the support on the side opposite to the frame and the support, and the frame and the support abut on the projection. 4. The method for manufacturing an electronic device according to claim 3, wherein the terminal portion and the conductive pattern are soldered in a state where the support portion is sandwiched between the printed board and the frame. .