JP2011186921A - Electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a connector and a conductive cable from being easily separated from an electric circuit board even in the event of application of impact on an electronic device, while securing the waterproof property of a part where the conductive cable is disposed. <P>SOLUTION: A connector 11 includes a lid body 15 and a cushioning member 16 provided on a side thereof opposite to a printed board 13. Thus, even if an impact is applied to a notebook computer or a first casing 1 from the outside, displacement of the connector 11 in a direction away from the printed board 13 can be restricted, and the connector 11 can be thus prevented from electrically and mechanically separating from the printed board 13. The circumference of a hole part 14a is enclosed by a water stopping member 18 to seal the lid body 15. Accordingly, even if liquid or powder enters into the first casing 1, it can be prevented from intruding to the printed board 13 side through the hole part 14a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic device.

  In recent years, mobile devices such as notebook personal computers have been developed with improved waterproof, drip-proof, and dust-proof performance, assuming that they are used outdoors. Among mobile devices, a mobile device having a plurality of casings such as a notebook computer and a foldable mobile phone needs to electrically connect electrical components incorporated in each of the plurality of casings. For example, in the case of a notebook personal computer, it is necessary to electrically connect a liquid crystal display built in one housing and an electric circuit board built in the other housing. For such electrical connection between electrical components, a conductive wire or a flat conductive cable is often used. In this way, when electrical parts are connected to each other by electrical conduction or the like, since a hole for drawing out a conducting wire must be provided in each of the plurality of housings, waterproof performance and the like are reduced.

  In Patent Document 1, a portable computer has a housing having a bottom wall on which a keyboard is disposed, and a circuit board accommodated in the housing. An opening is formed in the bottom wall of the housing. This opening exposes a part of the circuit board, for example, a connector for connection with a keyboard. A sheet that functions as a waterproof sheet is disposed between the bottom wall and the keyboard. The sheet covers the opening from above. The sheet is formed with a cable insertion portion for passing a cable connected to the connector.

  Patent Document 2 has a housing having an upper wall and a side portion extending from an edge of the upper wall, and a bottom surface provided on the upper wall of the housing, and at least a part of the bottom surface extends to the side portion of the housing. An electronic device including a keyboard placement unit and a keyboard placed on the keyboard placement unit is disclosed.

JP 2006-099550 A JP 2008-027137 A

  However, since the configurations disclosed in Patent Documents 1 and 2 do not have a configuration for mechanically protecting the connector, the connector is detached from the electric circuit board when a strong impact is applied to the notebook computer. There is a possibility.

  An electronic device disclosed in the present application overlaps with a housing, a substrate built in the housing and mounted with electrical components, a connector electrically connected to the substrate, and the connector in the housing. A hole formed at a position, a water stop member arranged so as to surround the hole, a lid fixed to the housing and closing the hole, the lid and the connector And the water stop member is sandwiched between the lid and the housing, and the connector is sandwiched between the substrate, the buffer member, and the lid. ing.

  According to the present invention, it is possible to ensure waterproofness in a portion where a conductive cable is arranged, and to prevent the connector and the conductive cable from being easily detached from the electric circuit board even if an impact is applied to the electronic device. it can.

The perspective view of the notebook computer concerning this Embodiment Plan view of the first housing Plan view of hole vicinity in first housing Top view of the lid Sectional drawing of the principal part of the ZZ part in FIG. Cross-sectional view of the main part showing a modification of the lid

(Embodiment)
[1. (Configuration of electronic equipment)
FIG. 1 is a perspective view showing an appearance of a notebook computer that is an example of the electronic apparatus according to the present embodiment. Note that in this embodiment, a notebook computer is used as an example of an electronic device. However, the electronic device includes at least a plurality of housings and a configuration that allows electrical components built in the housings to be electrically connected to each other. Any device can be used.

  As shown in FIG. 1, the notebook computer includes a first housing 1 and a second housing 2. The first housing 1 contains a circuit board on which various electric elements are mounted, a hard disk drive, and the like. The second housing 2 includes a liquid crystal display 4. The first casing 1 and the second casing 2 are rotatably supported by the hinge portion 3. The hinge unit 3 includes a rotating shaft that rotatably supports the first housing 1 and the second housing 2 in the direction indicated by the arrow A or B. A keyboard 5 and a pointing device 6 are arranged on the upper surface 1 a of the first housing 1.

  FIG. 2 is a plan view of the first housing 1. In FIG. 2, the connector 11 and the conductive cable 12 are simply drawn. As shown in FIG. 2, one end of the conductive cable 12 is electrically connected to the liquid crystal display 4 (the connection state is not shown), and the connector 11 is connected to the other end. The connector 11 is connected to an electric circuit board (described later) through a hole 14 a in the first housing 1.

  FIG. 3A is a plan view of the vicinity of the hole 14 a in the first housing 1. FIG. 3B is a plan view of the lid body 15. 4 is a partial cross-sectional view of the vicinity of the hole 14a of the ZZ portion in FIG.

  As shown in FIGS. 3A and 4, the frame 14 provided integrally with the first housing 1 has a hole portion 14 a. The hole portion 14a has at least an opening area capable of exposing the connector 11.

  A conductive cable 12 is connected to the connector 11. The connector 11 is electrically connected to the printed circuit board 13 and mechanically attached. FIG. 4 shows a state in which the connector 11 is mechanically attached to the printed circuit board 13, and the connector 11 can be detached from the terminal by displacing the connector 11 in the direction indicated by the arrow C from this state. As the connector 11, a connector that can be displaced in a direction substantially orthogonal to the mounting surface of the printed circuit board 13, such as a stack type connector or a flip-up type connector, can be used.

  As shown in FIGS. 3B and 4, the lid 15 is formed of a substantially flat metal plate. The lid 15 is preferably formed of a conductive material such as aluminum. The lid 15 is fixed to the frame 14 with screws or the like. The lid 15 is provided with an EMI gasket 17 on one main surface thereof (EMI: Electromagnetic Interference). The lid 15 is provided with a buffer member 16 and a water stop member 18 on the other main surface (the back side of one main surface).

  The buffer member 16 is fixed to the other main surface of the lid 15 with an adhesive or the like, and is located between the lid 15 and the connector 11. The buffer member 16 is made of an elastic material. The buffer member 16 can be formed of, for example, a silicone foam.

  The EMI gasket 17 is formed of a material having conductivity and elasticity. The EMI gasket 17 is for electrically connecting the lid 15 and the keyboard 5, and is for reducing electromagnetic interference in the first housing 1. The EMI gasket 17 can be formed of, for example, a conductive elastomer. The EMI gasket 17 is preferably fixed to one main surface of the lid 15 with a conductive adhesive or the like. The EMI gasket 17 is in electrical contact with the membrane sheet 51 of the keyboard 5.

  As shown in FIG. 3B, the water stop member 18 is formed in a substantially “B” shape having a hole in the center. The water stop member 18 is formed of a material that has elasticity and can secure waterproofness, and can be formed of, for example, a silicone foam. The water stop member 18 may be configured to be adhered to the other main surface of the lid 15 with an adhesive or the like, but liquid or the like enters at least between the water stop member 18 and the lid 15. In order to prevent this, it is preferable to bond by a waterproof bonding means. The water stop member 18 is disposed so as to surround the hole 14a of the frame 14, and is in close contact with the frame 14 around the hole 14a.

  As shown in FIG. 4, in the connector 11 electrically and mechanically attached to the terminals mounted on the printed circuit board 13, the buffer member 16 is in contact with the surface facing the surface facing the printed circuit board 13 side. The lid 15 is fixed to the frame 14 by forming a gap in which at least the water stop member 18 can be sandwiched between the lid 15 and the frame 14. The water stop member 18 is in contact with the frame 14 and the lid body 15, and is in contact with a region surrounding the hole 14 a in the frame 14. The EMI gasket 17 is in contact with the lid 15 and the membrane sheet 51.

  In such a configuration, for example, when the notebook computer 1 is dropped on the floor or the like with the upper surface 1a facing vertically downward, the connector 11 is moved in the direction indicated by the arrow C due to the inertia generated when the notebook computer collides with the floor. Try to displace. However, since the buffer member 16 and the lid 15 are disposed on the upper portion of the connector 11, displacement in the direction indicated by the arrow C is restricted. Therefore, it is possible to prevent the connector 11 from being detached from the terminal mounted on the printed circuit board 13.

  Further, for example, when the notebook computer 1 is dropped on the floor or the like with the lower surface 1b (the surface facing the upper surface 1a) vertically downward, it occurs at the interface between the lower surface 1b and the floor when the lower surface 1b and the floor collide. The impact energy is generated in the direction indicated by the arrow C shown in FIG. When impact energy in the direction indicated by arrow C shown in FIG. 4 is applied, the connector 11 tends to be displaced in the direction indicated by arrow C. However, since the buffer member 16 and the lid 15 are disposed on the upper portion of the connector 11, displacement in the direction indicated by the arrow C is restricted. Therefore, it is possible to prevent the connector 11 from being detached from the terminal mounted on the printed circuit board 13.

  In addition, since the elastic EMI gasket 17 is disposed between the lid 15 and the membrane sheet 51, the impact applied in the direction indicated by the arrow C is absorbed and is not easily transmitted to the membrane sheet 51. Yes. Since the membrane sheet 51 has a configuration in which two sheets having electrodes are opposed to each other with a minute gap therebetween, when the impact is applied from the outside and the minute gap becomes very small or disappears. The electrodes may always be in contact with each other, and the keyboard 5 may not operate normally. In the present embodiment, the shock applied to the membrane sheet 51 by the EMI gasket 17 can be used to prevent a failure of the keyboard 5 when an impact is applied to the notebook computer.

[2. Effects of the embodiment, etc.]
According to the present embodiment, the cover 15 and the buffer member 16 are provided on the opposite side of the connector 11 to the printed circuit board 13 side, so that an impact is applied to the notebook personal computer or the first housing 1 from the outside. In addition, the displacement of the connector 11 in the direction away from the printed circuit board 13 can be restricted. Therefore, it is possible to prevent the connector 11 from being electrically and mechanically detached from the printed circuit board 13.

  Moreover, even if liquid, dust, etc. enter into the 1st housing | casing 1 by having comprised the periphery of the hole part 14a with the water-stopping member 18 and having sealed the hole part 14a with the cover body 15. , It is possible to prevent entry to the printed circuit board 13 side through the hole 14a. Therefore, it is possible to prevent an electrical short from occurring in the printed circuit board 13 and various electrical components mounted thereon.

  In the present embodiment, the lid 15 is made of a conductive material, and the EMI gasket 17 is sandwiched between the lid 15 and the membrane sheet 51, whereby electromagnetic interference can be reduced.

  In the present embodiment, since the buffer member 16, the EMI gasket 17, and the water stop member 18 are fixed to the lid body 15, the lid body having the above-described configuration is assembled when the first casing 1 is assembled. Since the buffer member 16, the EMI gasket 17, and the water stop member 18 can be arranged at predetermined positions only by fixing 15 to the frame 14, there is an advantage that the assemblability is good.

  The buffer member 16 is not necessarily in contact with the connector 11, and is in contact with the connector 11 when an impact is applied to at least the first housing 1 to reduce the distance between the lid 15 and the connector 11. As long as it is arranged.

  Further, although the buffer member 16 is fixed to the lid 15, the buffer member 16 may be fixed to the connector 11 or may be fixed to both the connector 11 and the lid 15.

  Further, the EMI gasket 17 does not necessarily need to be in contact with the membrane sheet 51. When the impact is applied to at least the first housing 1 and the distance between the lid 15 and the membrane sheet 51 is reduced, the membrane sheet 51. It should just be arranged so that it may touch.

  Further, the EMI gasket 17 is not essential. That is, this embodiment is mainly intended to prevent the connector 11 from being detached from the printed circuit board 13 when an impact is applied to the notebook personal computer or the first housing 1. The EMI gasket 17 may not be provided as long as an arrangement having a gap between the body 15 and the membrane sheet 51 is possible.

  The EMI gasket 17 is fixed to the lid 15, but may be fixed to the membrane sheet 51 of the keyboard 5, or may be fixed to both the lid 15 and the membrane sheet 51.

  Further, the EMI gasket 17 is formed of a conductive material in the present embodiment. However, the EMI gasket 17 is conductive when sufficient measures against EMI are provided by a configuration other than the EMI gasket 17 in the notebook personal computer. It does not have to be. That is, instead of the EMI gasket 17, a buffer member formed of an insulating material may be provided between the lid 15 and the membrane sheet 51.

  Further, although the water stop member 18 is configured to be fixed to the lid 15, the water stop member 18 may be configured to be fixed to the frame 14, or may be configured to be fixed to both the lid 15 and the frame 14.

  In the present embodiment, the lid body 15 has a flat plate shape. However, as shown in FIG. The convex portion 25a protrudes toward the connector 21, and the gap with the connector 21 is made smaller than that in the configuration shown in FIG. The connector 21 is lower than the connector 11 shown in FIG. With such a configuration, even when the low-profile connector 21 is mounted, the displacement of the connector 21 in the detaching direction when an impact is applied can be restricted. Moreover, the waterproofing property with respect to the hole part 14a is securable by the water stop member 16. FIG.

  Further, the first housing 1 in the present embodiment is an example of the housing of the present invention. The printed board 13 in the present embodiment is an example of the board of the present invention. The connector 11 in the present embodiment is an example of the connector of the present invention. The hole 14a in the present embodiment is an example of the hole of the present invention. The water stop member 18 in the present embodiment is an example of the water stop member of the present invention. The lid body 15 in the present embodiment is an example of the lid body of the present invention. The buffer member 16 in the present embodiment is an example of the buffer member of the present invention.

  The present application is useful for an electronic device having waterproof, drip-proof, and dust-proof functions and further having impact resistance.

DESCRIPTION OF SYMBOLS 1 1st housing | casing 11, 21 Connector 15, 25 Cover body 16 Buffer member 17 EMI gasket 18 Water stop member 25a Protrusion

Claims (4)

A housing,
A board that is built in the housing and has electrical components mounted thereon;
A connector electrically connected to the substrate;
A hole formed at a position overlapping the connector in the housing;
A water stop member arranged to surround the hole,
A lid fixed to the housing and closing the hole;
A cushioning member disposed between the lid and the connector;
The water stop member is sandwiched between the lid and the housing,
The connector is an electronic device sandwiched between the substrate, the buffer member, and the lid.   The electronic device according to claim 1, wherein the lid includes a convex portion that protrudes toward the connector at a position overlapping the connector. An input device that accepts an input operation by the user is further provided,
The electronic device according to claim 1, wherein the connector, the hole, the water blocking member, the lid, and the buffer member are arranged on a back side of the operation unit side of the input device. A conductive elastic member is provided between the lid and the input device,
The electronic device according to claim 3, wherein the elastic member is in electrical contact with the lid and the input device.

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