JP2008166378A - Printed circuit board and electronic equipment with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printed circuit board capable of preventing the damage of the connecting section of a connector part with a plurality of terminals and a printed wiring board. <P>SOLUTION: The printed circuit board mounting an electronic part on the printed wiring board 21 is used as the printed circuit board 20. The printed circuit board 20 has the connector part 22 mounted on the printed wiring board 21 and a reinforcing board 23 joined with the printed wiring board 21 and insulated from the connector part 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a printed circuit board and an electronic apparatus including the printed circuit board.

A printed circuit board in which an electronic component or the like is mounted on a printed wiring board is used for an electronic device. A connector component that functions as an input / output terminal of an electronic device may be mounted on this type of printed circuit board. Such a printed circuit board may be damaged when a load is applied when the external terminal is inserted into or removed from the connector part. In order to prevent such damage, there has been a printed circuit board in which a reinforcing plate is joined to a connector part and a printed wiring board (for example, see Patent Document 1).
JP 2004-363610 A

  However, there is a connector component of a type in which a plurality of terminals are connected to a printed wiring board in order to input / output a plurality of different signals, and this type of connector component is disclosed in Patent Document 1. If the reinforcing plate is joined, a plurality of terminals of the connector component are short-circuited.

  In addition, since this type of connector component has a plurality of terminals, each of the terminals is thin, so that the connection portion between the connector component and the printed wiring board may be damaged when the external terminal is inserted or removed.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a printed circuit board and an electronic device that can prevent damage to a connection portion between a connector part having a plurality of terminals and a printed wiring board.

  The printed circuit board of the present invention is a printed circuit board in which electronic components are mounted on a printed wiring board. The printed circuit board includes a connector component mounted on the printed wiring board, and a reinforcing plate joined to the printed wiring board and insulated from the connector component.

  Another printed circuit board according to the present invention is characterized in that a connector component is mounted and a reinforcing plate insulated from the connector component is embedded inside.

  The electronic device of the present invention includes a printed circuit board in which electronic components are mounted on a printed wiring board. In this electronic apparatus, the printed circuit board has a connector component mounted on the printed wiring board and a reinforcing plate joined to the printed wiring board and insulated from the connector part.

  In another electronic device of the present invention, the printed circuit board is characterized in that a connector component is mounted and a reinforcing plate insulated from the connector component is embedded inside.

  ADVANTAGE OF THE INVENTION According to this invention, the printed circuit board and electronic device which can prevent the failure | damage of the connection part of the connector component which has a some terminal, and a printed wiring board can be obtained.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.
[First Embodiment]

  FIG. 1 is a perspective view illustrating an electronic apparatus according to the first embodiment. An electronic device 10 shown in FIG. 1 is a notebook personal computer, and includes a computer main body 11 and a display unit 12.

  The computer main body 11 has a thin box-shaped housing. On the top surface thereof, a keyboard 13, a power button 14 for turning on / off the electronic device 10, an input operation panel 15, and a touch A pad 16 and a speaker 18 are provided. The computer main body 11 is provided with a display unit 12.

  The display unit 12 incorporates a display device composed of an LCD (Liquid Crystal Display) 17, and the display screen of the LCD 17 is positioned substantially at the center of the display unit 12. The display unit 12 is attached to the computer main body 11 so as to be rotatable between an open position and a closed position.

  Inside the computer main body 11, a printed circuit board that includes electronic components such as a memory and a CPU and that constitutes an electronic circuit for executing various programs stored in the memory and realizing various functions is disposed. .

  In addition, an input / output terminal such as an external display connection terminal, an external keyboard connection terminal, an external mouse connection terminal, a printer connection terminal, and a LAN connection terminal is provided at a rear portion (not shown) of the computer main body 11. As these input / output terminals, connector parts are mounted on a printed circuit board.

  FIG. 2 is a view showing the printed circuit board according to the first embodiment of the present invention, and FIG. 3 is a view of the printed circuit board shown in FIG. 2 as viewed from the side. The printed circuit board 20 shown in FIGS. 2 and 3 includes a printed wiring board 21, a connector component 22, and a reinforcing plate 23.

  The printed wiring board 21 is formed by alternately laminating wiring layers and dielectric layers, and a plurality of electronic components (not shown) are mounted on the surface 21 s of the printed wiring board 21. In the present embodiment, a cutout portion 21 a that is cut into a substantially rectangular shape is provided at the center of the edge of the printed wiring board 21. The connector part 22 is inserted into the notch 21 a and the connector part 22 is mounted on the printed wiring board 21.

  Further, a U-shaped dummy pad 21 b insulated from other wiring patterns in the printed wiring board 21 is formed in a peripheral region surrounding the notch 21 a on the surface 21 s of the printed wiring board 21. A reinforcing plate 23 is mounted on the dummy pad 21b.

  In the present embodiment, the connector component 22 has a receiving portion 22r for inserting and removing an external terminal on the end surface 22a on the side along the end surface 21c having the cutout portion 21a in the printed wiring board 21, and this receiving portion 22r. It is possible to input / output a plurality of different signals. A plurality of terminals (for example, lead pins) 22p for propagating a plurality of signals input / output at the receiving portion 22r to the printed wiring board 21 are provided on the side surfaces 22b and 22c intersecting the end surface 22a of the connector component 22. It has been. These terminals 22p are connected to the wiring electrodes on the surface 21s of the printed wiring board 21 by, for example, solder.

  In the present embodiment, the connector component 22 is an offset type component in which the end of the terminal 22p is positioned higher than the bottom surface 22d. The offset type component can keep the height in the direction intersecting the surface 21s of the printed circuit board 20 low, and as a result, the electronic device 10 can be mounted and mounted in a small size. The reinforcing plate 23 is mounted on the surrounding area surrounding the connector component 22, that is, on the dummy pad 21 b of the printed wiring board 21 as described above.

  In this embodiment, the reinforcing plate 23 is a U-shaped flat plate, and is provided on the dummy pad 21 b on the surface 21 s of the printed wiring board 21 so as to surround the connector component 22 and to be separated from the connector component 22. . The reinforcing plate 23 is attached to the dummy pad 21b of the printed wiring board 21 with an adhesive such as solder. That is, the reinforcing plate 23 is insulated from the connector component 22 and coupled to the printed wiring board 21. In the present embodiment, the reinforcing plate 23 has a size that covers only a part of the surface 21 s of the printed wiring board 21. In the present embodiment, a metal is used as the material of the reinforcing plate 23.

  Next, the main procedure according to the present invention in the manufacturing procedure of the printed circuit board 20, that is, the mounting procedure of the connector component 22 and the reinforcing plate 23 on the printed wiring board 21 will be described.

  First, a solder paste is printed on wiring electrodes (not shown) and dummy pads 21b on the surface 21s of the printed wiring board 21. Next, a surface mount component (not shown) is mounted on the wiring electrode of the printed wiring board 21 and a connector component 22 is mounted using a surface mount component mounter. Further, the reinforcing plate 23 is mounted on the dummy pad 21b of the printed wiring board 21 so as to be separated from the connector component 22 by using a surface mount component mounter. Thereafter, the printed wiring board 21 is reflow heated to join the connector part 22 and the reinforcing plate 23 to the printed wiring board 21.

  As described above, according to the printed circuit board 20 of the first embodiment, since the reinforcing plate 23 is coupled to the printed wiring board 21, even if a load is applied to the connector component 22 when the external terminal is inserted or removed. The deflection of the printed wiring board 21 can be suppressed, and the printed wiring board 21 can be prevented from being damaged. For example, it is conceivable to increase the thickness of the printed wiring board in order to increase the rigidity of the printed wiring board. However, according to the printed circuit board 20 of the first embodiment, the thin printed wiring board 21 is used to reduce the weight. While being planned, the printed wiring board 21 can be prevented from being damaged.

  Moreover, according to the printed circuit board 20 of 1st Embodiment, the bending of the printed wiring board 21 resulting from insertion / extraction of an external terminal is suppressed by the reinforcement board 23, and the connector component 22 and the printed wiring board 21 are prevented. It is possible to prevent the connection portion from being damaged.

  Thereby, in particular, according to the printed circuit board 20 of the first embodiment, the offset-type connector component 22 that has a plurality of terminals 22p that require insulation and supports external loads mainly by these terminals 22p. When used, it has a great effect. Specifically, according to the printed circuit board 20 of the first embodiment, since the reinforcing plate 23 is insulated from the connector component 22, even if the connector component 22 has a plurality of terminals 22p, these terminals are provided. Since 22p is not short-circuited and the reinforcing plate 23 suppresses the deflection of the printed wiring board 21, the breakage of the joint between the printed wiring board 21 and the offset type connector component 22 can be prevented.

Further, according to the printed circuit board 20 of the first embodiment, since the reinforcing plate 23 is sized to cover a part of the surface 21s of the printed wiring board 21, while suppressing an increase in the weight of the printed circuit board 20, The printed wiring board 21 can be reinforced and the bonding strength between the connector component 22 and the printed wiring board 21 can be reinforced. Further, the reinforcing plate 23 can be mounted on the surface 21 s of the printed wiring board 21 by a surface mount component mounter. Thereby, it is possible to reinforce the printed wiring board 21 and reinforce the bonding strength between the connector component 22 and the printed wiring board 21 while suppressing an increase in manufacturing process and cost.
[Second Embodiment]

  FIG. 4 is a side view of a printed circuit board according to the second embodiment of the present invention. A printed circuit board 20A shown in FIG. 4 includes a printed wiring board 21A instead of the printed wiring board 21 in the printed circuit board 20, and a reinforcing plate 23 is attached to the back surface 21t of the printed wiring board 21A. This is different from the first embodiment. Other configurations of the printed circuit board 20A are the same as those of the printed circuit board 20.

  In the peripheral region surrounding the notch 21a on the back surface 21t of the printed wiring board 21A, the same dummy pad 21b as that in the first embodiment, which is insulated from other wiring patterns in the printed wiring board 21, is formed. A reinforcing plate 23 is coupled to the dummy pad 21b so as to surround the connector part 22 so as to surround the connector part 22.

The printed circuit board 20A according to the second embodiment can obtain the same advantages as those of the printed circuit board 20 according to the first embodiment.
[Third Embodiment]

  FIG. 5 is a side view of a printed circuit board according to the third embodiment of the present invention. A printed circuit board 20B shown in FIG. 5 is different from the first embodiment in that the printed circuit board 20 includes a printed wiring board 21B instead of the printed wiring board 21 and the reinforcing board 23. Other configurations of the printed circuit board 20B are the same as those of the printed circuit board 20.

  The printed wiring board 21B is a configuration that does not include the dummy pad 21b in the printed wiring board 21, and is different from the first embodiment in that a reinforcing plate 23A is embedded therein. Other configurations of the printed wiring board 21B are the same as those of the printed wiring board 21.

  In the cutout portion 21a of the printed wiring board 21B, the connector component 22 is mounted on the surface 21s as in the first embodiment.

  In this embodiment, the reinforcing plate 23A in the printed wiring board 21B is formed as a wiring layer between the dielectric layers of the printed wiring board 21B. Like the reinforcing plate 23, the reinforcing plate 23 </ b> A is a U-shaped flat plate and is formed inside the printed wiring board 21 so as to be separated from the connector component 22 so as to surround the connector component 22. That is, the reinforcing plate 23A is insulated from the connector component 22 and embedded in the printed wiring board 21B.

  The printed circuit board 20B according to the third embodiment can provide the same advantages as the printed circuit board 20 according to the first embodiment.

  Furthermore, according to the printed circuit board 20B of the third embodiment, since the reinforcing plate 23A is embedded in the printed wiring board 21B, the component mounting area on the front surface 21s and the back surface 21t of the printed wiring board 21B is reduced. While suppressing, it is possible to reinforce the printed wiring board 21B and reinforce the joint between the connector component 22 and the printed wiring board 21B.

  The present invention is not limited to the above-described embodiment, and various modifications can be made.

  In this embodiment, the reinforcing plate 23 is provided on the front surface 21s or the back surface 21t of the printed wiring boards 21 and 21A. However, the reinforcing plate 23 may be provided on both the front surface 21s and the back surface 21t.

  In the present embodiment, metal is exemplified as the material of the reinforcing plate 23, but various materials may be used for the reinforcing plate 23. For example, a printed wiring board similar to the printed wiring board 21 may be used for the reinforcing plate 23, or a resin flat plate may be used.

  In the present embodiment, the U-shaped shape is exemplified as the reinforcing plates 23 and 23A, but various shapes can be applied to the reinforcing plates 23 and 23A. For example, it may be L-shaped or I-shaped. The U-shaped reinforcing plate 23 in this embodiment surrounds the three side surfaces of the connector part. However, the L-shaped reinforcing plate can surround the two side surfaces of the connector part, and the I-shaped reinforcing plate has a connector. It is possible to reinforce the printed wiring board and the joint between the connector part and the printed wiring board on one side of the component. Further, an L-shaped reinforcing plate and an I-shaped reinforcing plate may be combined to surround two or three side surfaces of the connector component.

  In the present embodiment, the surface mount component (SMD) is exemplified as the connector component. However, the present invention can also be applied when a lead pin type component (IMD) is used.

It is a perspective view which shows the electronic device which concerns on 1st Embodiment. It is a figure which shows the printed circuit board which concerns on the 1st Embodiment of this invention. It is the figure which looked at the printed circuit board shown in FIG. 2 from the side. It is the figure which looked at the printed circuit board which concerns on the 2nd Embodiment of this invention from the side surface. It is the figure which looked at the printed circuit board concerning the 3rd Embodiment of this invention from the side.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Electronic device, 11 ... Computer main body, 12 ... Display unit, 13 ... Keyboard, 14 ... Power button, 15 ... Input operation panel, 16 ... Touch pad, 17 ... LCD, 18 ... Speaker, 20, 20A, 20B ... Print Circuit board, 21, 21A, 21B ... printed wiring board, 21a ... notch, 21b ... dummy pad, 22 ... connector part, 22p ... terminal, 22r ... receiving part, 23, 23A ... reinforcing plate.

Claims (10)

In printed circuit boards with electronic components mounted on printed wiring boards,
A connector component mounted on the printed wiring board;
A reinforcing plate joined to the printed wiring board and insulated from the connector component;
A printed circuit board comprising: In printed circuit boards with electronic components mounted on printed wiring boards,
In the printed wiring board, a connector part is mounted, and a reinforcing plate that is insulated from the connector part is embedded inside,
A circuit board characterized by that. The reinforcing plate is joined to the peripheral area surrounding the connector part of the printed wiring board, spaced apart from the connector part,
The printed circuit board according to claim 1. The reinforcing plate is joined to at least one of the front surface and the back surface of the printed wiring board,
The printed circuit board according to claim 3. The reinforcing plate is bonded only to the peripheral region that is a part of the printed wiring board.
The printed circuit board according to claim 3 or 4. The reinforcing plate is embedded in a peripheral region surrounding the connector component of the printed wiring board, spaced apart from the connector component.
The printed circuit board according to claim 2. The reinforcing plate is embedded only in the peripheral region that is a part of the printed wiring board.
The printed circuit board according to claim 6. The material of the reinforcing plate is metal.
The printed circuit board of any one of Claims 1-7. Equipped with a printed circuit board with electronic components mounted on a printed wiring board,
The printed circuit board is:
A connector component mounted on the printed wiring board;
A reinforcing plate joined to the printed wiring board and insulated from the connector component;
An electronic device comprising: Equipped with a printed circuit board with electronic components mounted on a printed wiring board,
In the printed wiring board, a connector part is mounted, and a reinforcing plate that is insulated from the connector part is embedded inside,
An electronic device characterized by that.

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