JP2007328531A - Electronic appliance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a notebook computer capable of achieving sufficient shield effects. <P>SOLUTION: The notebook computer is provided with: a case body main body 3 where a recessed part 32 having a first storage part 34 and second storage part 35 is formed; a shield layer 38 formed on an inner surface of the recessed part 32; a HDD 14 stored in the first storage part 34; a sheet metal main body for storing and holding the HDD 14 in the first storage part 34; an installing sheet metal 60 which has a tongue part 62 that extends from the sheet metal main body and is positioned in the second storage part 35 and is conducted to the HDD 14; a first conductive member 45 interposed between the shield layer 38 on the inner surface of the recessed part 32 and the sheet metal main body and for conducting the HDD 14 and the shield layer 38 on the inner surface of the recessed part 32; and an HDD cover 36 which covers the recessed part 32 and is provided with a shield layer 39 conducted with the tongue part 62 on the inner surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic device equipped with a unit such as a hard disk drive (hereinafter referred to as “HDD”).

  Electronic devices such as portable computers are equipped with units such as HDDs. As a method of attaching the unit, there is a method in which the unit is accommodated in a unit accommodating portion formed on the back of the casing of the electronic device. The unit housing portion is open to the back of the housing, but is closed by a cover after the unit is housed.

  By the way, when a unit is mounted on an electronic device, countermeasures against electromagnetic waves and static electricity are required. Under such circumstances, in current electronic devices, a shield metal plate is disposed around the unit. The shield sheet metal is electrically connected to the ground disposed on the wiring board of the electronic device, and has a function of blocking electromagnetic waves and discharging static electricity.

As an electronic device for which electromagnetic wave / static electricity countermeasures have been taken, an integrated playback device of a DVD unit and a video cassette unit has been disclosed. This integrated reproduction apparatus includes a divided magnetic shielding plate for separating a DVD unit and a video cassette unit, an upper magnetic shielding plate disposed above the DVD unit, and a front magnetic shielding plate disposed in front of the DMD unit. By these, the DVD unit and the video cassette unit are shielded (see, for example, Patent Document 1).
JP 2002-50171

  By the way, in the conventional electronic devices, a shield metal plate is disposed on the inner surface of the cover in order to prevent electromagnetic waves and static electricity. However, when the shield sheet metal is disposed on the cover, not only the weight of the electronic device increases, but also the cost increases. In addition, a sufficient shielding effect has not been obtained.

  The present invention provides an electronic device capable of obtaining a sufficient shielding effect.

  The electronic device according to the present invention is housed in the housing in which the concave portion having the first housing portion and the second housing portion is formed, the conductive layer formed on the inner surface of the concave portion, and the first housing portion. A holding member that is electrically conductive to the unit and has a body that houses and holds the unit in the first housing portion, a tongue that extends from the main body and is positioned in the second housing portion, A first conductive member interposed between the conductive layer on the inner surface of the recess and the main body and conducting the unit and the conductive layer on the inner surface of the recess, and the conductive layer covering the recess and being electrically conductive with the tongue And a cover provided on the inner surface.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device from which sufficient shield effect is acquired can be provided.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a notebook personal computer 1 according to an embodiment of the present invention, FIG. 2 is a perspective view showing a front right portion of a personal computer main body 2 according to the embodiment, and FIG. 1 is a cross-sectional view showing the personal computer main body 2 cut along F3-F3 in FIG. 1, and FIG. 4 is a cross-sectional view showing the personal computer main body 2 cut along F4-F4 in FIG.

  In the following description, the “front side” is the side closer to the user of the notebook computer 1, the “rear side” is the side farther from the user of the notebook computer 1, and the “left side” is the notebook computer 1. The right side as viewed from the user of the notebook computer 1 is the left side as viewed from the user. Also, “upper” and “lower” are defined according to gravity.

  As shown in FIG. 1, a notebook personal computer (electronic device) 1 according to this embodiment includes a personal computer main body 2. The personal computer main body 2 is formed in a box shape by a housing main body (housing) 3 and a top cover 4.

  The top cover 4 is fixed with screws to a base wall 31 to be described later, and a keyboard 7 is disposed at a predetermined portion thereof. A liquid crystal display 12 is disposed at the rear of the top cover 4. The liquid crystal display 12 is rotatably supported by two hinge portions 11 disposed at the left end and the right end of the housing body 3.

  A wiring board 13 is accommodated in the housing body 3. The keyboard 7 and the liquid crystal display 12 are electrically connected to the wiring board 13. Thus, desired information is displayed on the liquid crystal display 12 based on the input from the keyboard 7.

  The wiring board 13 is mounted with an electronic component such as an MPU. Electronic parts generate heat during operation. Therefore, a cooling device for cooling the electronic component 15 is disposed inside the housing body 3. In addition, although what kind of cooling device may be sufficient, what comprises a heat receiving part, a heat exchange part, a heat pipe, and a fan is used in this embodiment.

  As shown in FIG. 2 to FIG. 4, the housing body 3 includes a base wall (wall portion) 31 that faces a desktop or the like when in use, and a later-right portion of the rear surface accommodates an HDD 14 to be described later. The recess 32 is formed. That is, the notebook personal computer 1 according to this embodiment includes the HDD 14 immediately below the right hand of the user.

  The base wall 31 has a flat dish shape, and a shield layer 33 is disposed on the inner surface thereof. The shield layer 33 is electrically connected to the ground of the wiring board 13 described above. The shield layer 33 is formed by aluminum vapor deposition or the like.

  The recess 32 includes a first housing part 34 and a second housing part 35. The first and second accommodating portions 34 and 35 have a rectangular shape when viewed from directly below, and are arranged so that their long sides extend left and right.

  The first accommodating portion 34 is a space for accommodating the HDD 14, and an opening 34 a for accommodating the connector 43 for connecting the HDD 14 is formed on the right side wall thereof. Note that the depth of the first housing portion 34 is larger than the thickness of the HDD 14. The second accommodating portion 35 is a space for accommodating a tongue portion 62 of the mounting sheet metal 60, which will be described later, an edge portion of the HDD cover 36, and the second conductive member 40, and is around the first accommodating portion 34. Placed in. Note that the depth of the second accommodating portion 35 is smaller than that of the first accommodating portion 34. Therefore, the recess 32 has a two-stage structure with a deep center and a shallow periphery.

  The recess 32 is closed by an HDD cover (cover) 36. The HDD cover 36 is attached to the housing body 3 with a plurality of screws 37 (shown only in FIG. 2). The HDD cover 36 is formed of a resin material, and a shield layer (conductive layer) 39 is formed on the inner surface thereof, that is, on a portion facing the recess 32. The shield layer 39 is formed by aluminum vapor deposition or the like.

  A shield layer (conductive layer) 38 is disposed from the first housing portion 34 to the second housing portion 35 on the inner surface of the recess 32, that is, the portion that becomes the outer surface when the base wall 31 is used as a reference. . The shield layer 38 is electrically connected to the shield layer 33 through the above-described opening 34 a formed on the side wall of the first housing portion 34. The shield layer 38 is formed by aluminum vapor deposition or the like. Needless to say, instead of the shield layer 33, the shield layer 38, and the shield layer 39, a metal plate such as conductive copper foil or aluminum foil may be provided.

  A first conductive member 45 for electrically connecting a sheet metal body 61 of a mounting sheet metal 60 (to be described later) and a shield layer 38 formed on the second housing part 35 is disposed in the first housing part 34. ing. The first conductive member 45 includes a sponge (insulating portion) 46 having cushioning properties (elasticity) and a metal thin film (conductive portion) 47 formed around the sponge 46.

  In the second housing portion 35, a second conductive member 40 for electrically connecting a tongue portion 62 of a mounting sheet metal 60 to be described later and a shield layer 39 formed on the HDD cover 36 is disposed. The second conductive member 40 includes a sponge (insulating portion) 41 having cushioning properties (elasticity) and a metal thin film (conductive portion) 42 formed around the sponge 41.

Next, the configuration of the HDD 14 will be described.
The HDD 14 is connected to the above-described connector 43 disposed inside the housing body 3. The connector 43 protrudes from the opening 34 a formed in the side wall of the first housing portion 34 to the inside of the recess 32, and is electrically connected to the connection portion 13 a of the wiring board 13 by the cable 44.

  The HDD 14 includes a magnetic disk, a magnetic head, an arm, a substrate, and the like, and the periphery thereof is covered with a rectangular box-type chassis 50. In the present embodiment, only the chassis 50 is illustrated, and the rest are omitted.

  The chassis 50 includes a rectangular bottom plate 51, a short side plate 52 connected to both ends of the bottom plate 51 in the longitudinal direction, and a long side plate 53 connected to both ends of the bottom plate 51 in the short direction. As a material of the chassis 50, conductive metals such as iron and aluminum are used.

  Such an HDD 14 is accommodated in the first accommodating portion 34 of the recess 32 in such a manner that the bottom plate 51 of the chassis 50 faces the HDD cover 36 by an attachment sheet metal (holding member) 60 described later. As a result, the lower portion of the HDD 14, that is, the portion of the HDD 14 that faces the HDD cover 36 is shielded by the bottom plate 51 of the chassis 50.

Next, the structure of the attachment sheet metal 60 will be described.
FIG. 5 is a perspective view showing a lower right portion of the personal computer main body 2 with the HDD cover 36 according to the embodiment removed, and FIG. FIG. 7 is a perspective view showing the mounting sheet metal 60 according to the embodiment from above.

  As shown in FIG. 5 to FIG. 7, the attachment sheet metal 60 includes a sheet metal main body (main body) 61 that holds the HDD 14 and two tongue portions 62 that support the sheet metal main body 61. The sheet metal main body 61 and the tongue 62 are parts manufactured by pressing from a single flat plate. As a material for the mounting sheet metal 60, a conductive metal such as iron or aluminum is used.

  The sheet metal body 61 has a lower sheet metal piece 63 that faces the bottom plate 51 of the chassis 50, a side sheet metal piece 64 that faces the long side plate 53 of the chassis 50, and an end of the long side plate 53 of the chassis 50 opposite to the bottom plate 51. The upper sheet metal piece 65 which opposes, and the fixed sheet metal piece 66 extended toward the HDD14 from the side sheet metal piece 64 are provided.

  The lower sheet metal piece 63 has a frame shape corresponding to the outer edge of the bottom plate 51 of the chassis 50. The side sheet metal pieces 64 are connected to both ends of the lower sheet metal piece 63 in the short direction, and openings 64a are formed at respective predetermined positions. The upper sheet metal piece 65 is connected to an end portion of the side sheet metal piece 64 positioned opposite to the lower sheet metal piece 63. The fixed sheet metal pieces 66 are disposed inside the openings 64 a formed in the side sheet metal pieces 64, respectively, and are fixed to the long side plates 53 of the chassis 50 of the HDD 14 with screws 67 at their tips. Thus, the attachment sheet metal 60 is firmly fixed to the HDD 14.

  The tongue portion 62 is connected to both ends of the lower sheet metal piece 63 in the longitudinal direction, and extends in a direction away from the lower sheet metal piece 63. That is, the tongue 62 extends away from the HDD 14.

  As shown in FIG. 3, the tongue portion 62 is accommodated in the first accommodating portion 34 of the recess 32, and the shield layer 38 formed on the inner surface of the second accommodating portion 35 and the first portion are formed by the edge portion of the HDD cover 36. Between the two conductive members 40. That is, the chassis 50 of the HDD 14 mounted on the notebook computer 1 is electrically connected to the shield layer 33 and the shield layer 39 through the sheet metal body 61 and the tongue portion 62. In the gap between the mounting sheet metal 60 and the inner surface of the recess 32, a cushioning material 70 for reducing the impact on the HDD 14 is disposed. These cushioning materials 70 are attached to the inner surface of the HDD cover 36 and the inner surface of the recess 32 in advance.

  Next, the mounting operation of the HDD 16 will be briefly described.

  First, the opening portion of the chassis 50 is set at the head, and the HDD 16 is inserted into the first housing portion 34 of the recess 32 formed in the housing body 3. When the upper sheet metal piece 65 of the sheet metal main body 61 of the attachment sheet metal 60 is brought into close contact with the first conductive member 45 attached to the first accommodating portion 34 of the recess 32, the HDD 14 is slid to the right side, and the connection portion is Connected to the connector 43. In this way, the HDD 14 is electrically connected to the wiring board 13 disposed inside the housing body 3.

  Next, the HDD cover 36 is disposed on the recess 32 and is fixed to the housing body 3 with screws 37. Then, the tongue portion 62 of the attachment metal plate 60 is sandwiched between the shield layer 38 formed in the second housing portion 35 and the second conductive member 40 by the edge portion of the HDD cover 36.

  Through the above steps, the HDD 14 is positioned at a specified position in the first housing portion 34, and at the same time, the chassis 50 of the HDD 14 is placed on the shield layer 38 formed on the inner surface of the recess 32 and the inner surface of the HDD cover 36. It is electrically connected to the formed shield layer 39.

(Operation by this embodiment)
In the present embodiment, the attachment sheet metal 60 includes two tongue portions 62 that extend away from the HDD 14. These tongue portions 62 are formed by the shield layer 38 formed in the second housing portion 35 and the second conductive member 40 fixed to the HDD cover 36 by the pressure from the edge portion of the HDD cover 36. It is pinched.

  Thus, the attachment sheet metal 60 is electrically connected to the shield layer 38 and the shield layer 39 disposed so as to surround the HDD 14 through the two tongue portions 62. Therefore, in this embodiment, it is possible to realize a very good countermeasure against electromagnetic waves and static electricity as compared with the conventional case.

  In addition, the tongue portion 62 has a function of positioning the HDD 14 at a specified position in the first housing portion 34 of the recess 32 and a function of conducting the chassis 50 of the HDD 14 to the shield layer 33 of the housing body 3. As described above, the casing body 3 can be downsized by providing the tongue 62 with two functions.

  Further, the chassis 50 of the HDD 14 includes a bottom plate 51 formed of a metal such as iron or aluminum at a portion facing the HDD cover 36. Therefore, the countermeasure against electromagnetic waves and static electricity on the HDD cover 36 side of the HDD 14 is further improved.

  In the present embodiment, the first conductive member 45 includes a sponge 46 having cushioning properties and a metal thin film 47 formed around the sponge 46. Therefore, even if the dimensional accuracy of the HDD cover 36, the recess 32, and the attachment sheet metal 60 is low, the sheet metal body 61 and the shield layer 38 of the attachment sheet metal 60 can be reliably secured only by attaching the HDD cover 36 to the housing body 3. Conducted to.

  In the present embodiment, the second conductive member 40 includes a sponge 41 having cushioning properties and a metal thin film 42 formed around the sponge 41. Therefore, even if the dimensional accuracy of the HDD cover 36, the recess 32, and the attachment sheet metal 60 is low, the tongue 62, the shield layer 38, and the shield layer of the attachment sheet metal 60 can be obtained only by attaching the HDD cover 36 to the housing body 3. 39 is reliably conducted.

  In the present embodiment, the mounting sheet metal 60 includes two tongue portions 62. However, the present invention is not limited to this. That is, the number of tongues 62 may be one or three or more. When there is one tongue portion 62, the tongue portion 62 is disposed on the opposite side of the connector 43 with the HDD 14 interposed therebetween.

  In the present embodiment, countermeasures against electromagnetic waves and static electricity of the HDD 14 are described. However, the present invention is not limited to this, and can also be applied to countermeasures against electromagnetic waves and static electricity of other units.

  The present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment.

1 is a perspective view of a notebook computer according to an embodiment of the present invention. The perspective view which shows the part which becomes the front right side of the personal computer main body concerning the embodiment from the lower side. Sectional drawing which cut | disconnects and shows the personal computer main body concerning the same embodiment by F3-F3 in FIG. Sectional drawing which cut | disconnects and shows the personal computer main body concerning the embodiment by F4-F4 in FIG. The perspective view which shows the part which becomes the front right side of a personal computer main body in the state from which the HDD cover concerning the embodiment was removed. The perspective view which shows HDD from which the attachment sheet metal concerning the embodiment was fixed from the upper side. The perspective view which shows the attachment sheet metal concerning the embodiment from the upper side.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Notebook-type personal computer (electronic device), 3 ... Housing | casing main body (casing), 14 ... HDD (unit), 32 ... Recessed part, 34 ... 1st accommodating part, 35 ... 2nd accommodating part, 36 ... HDD Cover (cover) 37 ... Screw 38 ... Shield layer (conductive layer) 39 ... Shield layer (conductive layer) 40 ... Second conductive member 41 ... Sponge (insulating part) 42 ... Metal thin film (conductive part) ), 43 ... Connector, 45 ... First conductive member, 46 ... Sponge (insulating part), 47 ... Metal thin film (conductive part), 61 ... Sheet metal body (main body), 62 ... Tongue part, 60 ... Mounting sheet metal (holding) Member), 70 ... cushioning material.

Claims (7)

A housing formed with a recess having a first housing portion and a second housing portion;
A conductive layer formed on the inner surface of the recess;
A unit housed in the first housing portion;
A holding member having a main body for receiving and holding the unit in the first receiving portion, a tongue extending from the main body and positioned in the second receiving portion and electrically conductive with the unit;
A first conductive member interposed between the conductive layer on the inner surface of the recess and the main body, and conducting the unit and the conductive layer on the inner surface of the recess;
A cover provided on the inner surface with a conductive layer that covers the recess and is electrically conductive with the tongue,
An electronic device comprising:   The electronic apparatus according to claim 1, further comprising a second conductive member that is interposed between the tongue and the conductive layer on the inner surface of the cover and that conducts them.   The electronic device according to claim 1, wherein at least a portion of the unit facing the cover is made of a conductive material.   The electronic device according to claim 1, wherein the cover is fixed to the housing with a screw.   The electronic apparatus according to claim 2, wherein the first and second conductive members include an insulating part having elasticity and a conductive part formed on a surface of the insulating part.   The electronic device according to claim 1, wherein the unit is a hard disk drive.   The electronic device according to claim 1, further comprising a cushioning material disposed in a gap between the unit and the inner surface of the recess.

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