JP2009158542A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a function expansion device which can make electronic equipment thin by determining the size of a function expansion device storage section formed in the electronic equipment within a range wherein the largest unit among arbitrary units stored in the function expansion device storage section can be stored. <P>SOLUTION: A side wall 13c of a lower housing 7 is formed overlapping opposite to the inside of a side wall 8b of an upper housing 8. An air vent 11 is composed of an upper housing air vent 8f formed at the side wall 8b of the upper housing 8 and a lower housing air vent 13b formed at the side wall 13c of the lower housing 7. A conductive layer 20 is formed at a peripheral edge of the lower housing air vent 13b. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a housing having a conductive layer, and more particularly to an electronic device having a vent in the housing.

  Conventionally, in order to shield electromagnetic waves generated by electronic equipment, metal plating or conductive paint is applied to either the inside or outside of electronic equipment that shields electromagnetic waves using a metal housing or a plastic housing. Electronic devices that shield electromagnetic waves are known.

In the electronic device described in Patent Document 1, a conductive layer is formed by applying metal plating or a conductive paint on the inner surface of a plastic casing, and the signal ground of the printed circuit board inside the electronic device is in contact with the conductive layer. A sufficient area is ensured to shield electromagnetic waves.
Japanese Utility Model Publication No. 3-30490

  In recent years, electronic devices such as notebook computers and mobile phones have become smaller and lighter, and the thickness of the housing has been reduced to accommodate motherboards, flexible disk units (hereinafter FDD units), hard disk drive units (hereinafter HDD units), and the like. There is a tendency to prefer what was made.

  Here, devices such as an auxiliary storage device such as a CPU, a memory, an FDD unit, and an HDD unit that constitute an electronic device generate heat when operated. From the viewpoint of maintaining the lifetime and reliability of the electronic equipment, it is necessary to sufficiently exhaust the heat generated by these devices from the housing, and the housing is provided with a vent hole. However, if a ventilation hole is provided in the housing, electromagnetic waves emitted from the device will leak from the ventilation hole.

  In the case of a non-conductive housing such as plastic, for example, metal plating or conductive paint is applied to the inner surface of the housing to shield electromagnetic waves. If this housing is provided with vent holes, metal plating is provided around the vent holes. If a conductive coating is applied, metal plating or a conductive coating is applied to the outer surface, which is the design surface of the housing, and the aesthetics of the electronic device are impaired.

  An object of the present invention is to propose an electronic device that can easily shield electromagnetic waves around a vent hole provided in a non-conductive housing.

  In order to solve the above problems, in the present invention, a non-conductor housing, a ventilation hole communicating with the inside of the housing and exhausting heat generated inside the housing, and an inner surface of the housing are formed. In the electronic device having a conductive layer, the casing has a multiple wall portion including an inner wall and an outer wall, and the vent includes an inner wall vent formed in the inner wall and an outer wall vent formed in the outer wall. The multiple wall portion of the conductive layer is formed at the periphery of the inner wall vent.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which enables easily the electromagnetic wave shield around the vent hole provided in the non-conductor-made housing can be proposed.

  Embodiments of an electronic apparatus according to the present invention will be described with reference to the accompanying drawings.

[First Embodiment]
1st Embodiment of the electronic device which concerns on this invention is described with reference to FIGS.

  FIG. 1 is a bird's-eye view showing the appearance of a notebook computer showing an example of an electronic apparatus according to the first embodiment of the present invention.

  As shown in FIG. 1, a notebook personal computer 1 showing an example of an electronic device according to the present embodiment includes a flat quadrangular box-shaped housing 2 and a tiltable open / close display unit 3.

  The display unit 3 is rotatably connected to the housing 2 via a hinge part 2c provided on the rear part 2b of the upper surface part 2a. A housing (not shown) including a CPU, a memory, and the like, devices such as the HDD unit 4 and the FDD unit 5 are accommodated in the housing 2. A keyboard 6 is provided on the upper surface of the housing 2. The housing 2 includes a lower housing 7 as a second housing that is open upward, and an upper housing 8 as a first housing that is detachably connected to the open end of the lower housing 7.

  The lower housing 7 is a first box-shaped member constituting the housing 2 and is formed of a non-conductive material such as synthetic resin. The lower housing 7 has a flat bottom wall 7a, left and right side walls 7b and 7c connected to the bottom wall 7a, and a bottom It has a front wall 7d continuous with the wall 7a and a rear wall 7e continuous with the bottom wall 7a. The side walls 7b, 7c, the front wall 7d, and the rear wall 7e extend upward from the peripheral edge of the bottom wall 7a.

  The upper housing 8 is a second box-shaped member constituting the housing 2 and is formed of a non-conductive material such as synthetic resin. The upper housing 8 has a substantially flat upper wall 8a and left and right side walls 8b and 8c connected to the upper wall 8a. It has a front wall 8d continuous with the upper wall 8a and a rear wall 8e continuous with the upper wall 8a. The side walls 8b, 8c, the front wall 8d, and the rear wall 8e extend downward from the peripheral edge of the upper wall 8a. The upper wall 8 a faces the bottom wall 7 a of the lower housing 7.

  The opening at the lower end of the upper housing 8 formed by the side walls 8b, 8c, the front wall 8d, and the rear wall 8e is formed in substantially the same shape as the outer periphery of the lower housing 7 formed by the side walls 7b, 7c, the front wall 7d, and the rear wall 7e. The upper housing 8 is covered with the lower housing 7.

  FIG. 2 is a left side view showing the appearance of a notebook personal computer showing an example of the electronic apparatus according to the first embodiment of the present invention.

  As shown in FIG. 2, the left side surface 2d of the housing 2 has an electronic device conforming to the 16-bit PC card standard included in the PC Card Standard standard defined by the US Personal Computer Memory Card International Association (PCMCIA) or the CardBus standard. Is accommodated in the function expansion unit 10 and the FDD unit 5. The function expansion unit 10 is disposed in the approximate center of the left side surface portion 2d of the housing 2. The FDD unit 5 is a front end portion 2e of the left side surface portion 2d of the housing 2 and is disposed so as to be offset from the bottom surface portion 2f of the housing 2. The HDD unit 4 is accommodated on the upper surface 2 a side of the front end 2 e of the left side surface 2 d of the housing 2. That is, the HDD unit 4 and the FDD unit 5 are accommodated in the housing 2 so as to overlap in the vertical direction. A vent 11 for exhausting heat from the HDD unit 4 is provided at the front end 2e of the left side surface 2d of the housing 2.

  3 and 4 are views showing a state in which the FDD unit and the HDD unit are removed from the notebook personal computer showing an example of the electronic apparatus according to the first embodiment of the present invention.

  3 and 4 are bird's-eye views of the casing 2 of the notebook personal computer 1 as viewed from the bottom surface 2f side. FIG. 3 shows the removed FDD unit and HDD unit.

  As shown in FIGS. 3 and 4, the lower housing 7 includes an FDD unit housing portion 12 and an HDD unit housing portion 13.

  The FDD unit accommodating portion 12 accommodates the FDD unit 5 in a removable manner, and the HDD unit accommodating portion 13 accommodates the HDD unit 4 in a removable manner.

  The FDD unit accommodating portion 12 and the HDD unit accommodating portion 13 are formed in a concave portion 7 f opened in the bottom wall 7 a of the lower housing 7, and the FDD unit accommodating portion 12 is formed on the bottom surface portion 2 f side of the housing 2. An HDD unit accommodating portion 13 is formed on the 2a side. Each of the FDD unit accommodating portion 12 and the HDD unit accommodating portion 13 is a flat box-shaped space, and the FDD unit accommodating portion 12 is formed in a box shape larger than the HDD unit accommodating portion 13.

  The FDD unit housing portion 12 is formed at the lower left front end of the lower housing 7 and extends in the left-right direction of the lower housing 7. Further, the FDD unit housing portion 12 includes an insertion port 12 a that opens toward the lower side of the lower housing 7 and a notch 12 b that opens toward the left side of the lower housing 7.

  The FDD unit accommodating portion 12 includes a side wall 12c extending in the depth direction of the lower housing 7 continuously from the bottom wall 7a, side walls 12d and 12e extending in the left-right direction of the lower housing 7, and side walls 12c, 12d, and 12e from the HDD. It has a ceiling wall 12f extending continuously from the unit accommodating portion 13. The ceiling wall 12 f is horizontally arranged so as to be parallel to the bottom wall 7 a of the lower housing 7.

  The side walls 12d and 12e have inner surfaces that face each other, and guide protrusions 15 are formed on the inner surfaces. The guide protrusion 15 extends in the left-right direction of the lower housing 7. An FDD connector outlet 16 connected to the inside of the lower housing 7 is opened in the side wall 12c.

  The HDD unit housing portion 13 is formed at the upper left front end of the lower housing 7 and extends in the left-right direction of the lower housing 7. The HDD unit accommodating portion 13 is a space formed slightly larger than the HDD unit 4. The HDD unit accommodating portion 13 is opened toward the left side of the lower housing 7 and the insertion port 13 a opened toward the FDD unit accommodating portion 12. And a lower housing vent 13b.

  The HDD unit housing portion 13 includes side walls 13c and 13d extending in the depth direction of the lower housing 7 continuously to the ceiling wall 12f of the FDD unit housing portion 12, and side walls 13e and 13f extending in the left-right direction of the lower housing 7. And a ceiling wall 13g connecting the upper ends of the side walls 13c, 13d, 13e, and 13f. The ceiling wall 13g is arranged horizontally so as to be parallel to the bottom wall 7a of the lower housing 7.

  The side walls 13c and 13d have inner surfaces that face each other, and a lower housing vent 13b is opened in the side wall 13c. An HDD connector outlet 19 that is continuous with the inside of the lower housing 7 is opened in the side wall 13d. The side walls 13e and 13f have inner surfaces that face each other, and an HDD bracket locking recess 18 that is continuous with the ceiling wall 12f of the FDD unit housing portion 12 is formed at a substantially central portion at the lower end thereof. A thinning opening 13h is opened in the ceiling wall 13g. The side wall 13c of the HDD unit housing portion 13 ensures the rigidity of the recess 7f of the lower housing 7 in which the notch 12b of the FDD unit housing portion 12 is formed.

  A conductive layer 20 made of conductive paint or metal plating is formed on the inner wall surface of the lower housing 7, that is, the wall surface that covers the upper housing 8 and becomes the inner wall surface of the housing 2. In particular, in the HDD unit housing portion 13, the conductive layer 20 is formed on the side of the side walls 13 c, 13 d, 13 e, 13 f that constitute part of the inner wall surface of the lower housing 7 and the surface of the ceiling wall 13 g that faces the upper housing 8. On the side wall 13c where the lower housing vent 13b is formed, a conductive layer 20 is formed along the periphery of the lower housing vent 13b.

  An upper housing vent 8 f is formed in the side wall 8 b of the upper housing 8 so as to correspond to the lower housing vent 13 b formed in the side wall 13 c of the lower housing 7. When the upper housing 8 is covered with the lower housing 7, the lower housing vent 13 b and the upper housing vent 8 f are communicated to form the vent 11. A conductive layer 21 made of conductive paint or metal plating is formed on the inner wall surface of the upper housing 8, that is, the wall surface which is covered with the lower housing 7 and becomes the inner wall surface of the housing 2. The conductive layer 21 is electrically connected to the conductive layer 20 of the lower housing 7 by a conductor (not shown) such as a copper foil tape, a metal mesh, or conductive rubber.

  The FDD unit 5 is a flat box-like device having a flexible disk insertion slot 22 in the front surface portion 5a. The FDD unit 5 is screwed into a synthetic resin outer cover 23 that covers the side surface portion 5 b and the bottom surface portion 5 c and is accommodated in the FDD unit accommodating portion 12.

  The outer cover 23 is detachably formed in the FDD unit housing portion 12, and includes a bottom wall 23a and side walls 23b, 23c, and 23d connected to the bottom wall 23a. The side walls 23c and 23d have inner surfaces that face each other. A conductive layer 24 such as conductive paint or metal plating is formed on the inner surface of the outer cover 23.

  The FDD unit 5 is attached by screws 25 to coupling holes (not shown) provided in the side walls 23c and 23d of the outer cover 23. The front surface portion 5a of the FDD unit 5 is disposed substantially flush with the side wall 23b in which the notch 23e is formed.

  When the outer cover 23 is accommodated in the FDD unit accommodating portion 12, the bottom wall 23 a constitutes a part of the bottom wall 7 a of the lower housing 7. Further, the side wall 23 b constitutes a part of the side wall 7 b of the lower housing 7.

  Guide grooves 26 are formed in the side walls 12d and 12e. When the outer cover 23 is accommodated in the FDD unit accommodating portion 12, the guide groove portions 26 of the side walls 23c and 23d are locked to the guide convex portions 15 formed on the side walls 12d and 12e of the FDD unit accommodating portion 12, and the outer cover 23 is FDD. Supported by the unit accommodating portion 12.

  The bottom wall 23 a has a coupling hole 28 in a convex piece portion 23 f extending toward the right of the lower housing 7, and is screwed to the lower housing 7 through the coupling hole 28.

  The HDD unit 4 is a flat box-like device. The HDD unit 4 is screwed with a metal HDD bracket 31 that covers the side surface portion 4a.

  The HDD bracket 31 has a base portion 31 a that covers the side surface portion 4 a of the HDD unit 4, and a locking convex portion 31 b that extends from the center of the lower end of the base portion 31 a to the side of the HDD unit 4.

  When the HDD unit 4 is accommodated in the HDD unit accommodating portion 13, the base portion 31 a of the HDD bracket 31 is disposed between the side surface portion 4 a of the HDD unit 4 and the side walls 13 e and 13 f of the HDD unit accommodating portion 13. The stop protrusion 31b is fitted into the HDD bracket locking recess 18. The HDD unit 4 is screwed into a screw insertion hole 18a provided in the HDD bracket locking recess 18 through a coupling hole 31c formed in the locking projection 31b.

  FIG. 5 is a partial perspective view of the inner surface of the upper housing of the notebook computer showing an example of the electronic apparatus according to the first embodiment of the present invention.

  As shown in FIG. 5, the upper housing 8 is formed with an upper housing vent 8 f as a hole communicating with the outer surface serving as the design surface of the housing 2. A partition projection 32 is provided around the upper housing vent 8f. When the upper housing 8 is covered with the lower housing 7, the partition protrusion 32 is brought into contact with the peripheral edge of the lower housing vent 13 b formed in the side wall 13 c of the HDD unit housing portion 13 of the lower housing 7, so that the lower housing 7 and the gap between the upper housing 8 and the vent 11 are sealed.

  In general, the conductive layer is not formed at the periphery of the hole communicating with the outer surface serving as the design surface of the casing 2 so as not to impair the beauty of the notebook personal computer 1 when the conductive layer is formed.

  In the notebook type personal computer 1, a broken line area A where the conductive layer 21 is not formed is provided in the vicinity of a hole communicating with the outer surface of the housing 2, particularly an upper housing vent 8 f formed in the side wall 8 b of the upper housing 8. .

  FIG. 6 is a partial longitudinal sectional view of a notebook personal computer showing an example of an electronic apparatus according to the first embodiment of the present invention.

  As shown in FIG. 6, the housing 2 is configured by covering the lower housing 7 with the upper housing 8. In the recess 7 f formed in the lower housing 7, an FDD unit housing portion 12 is formed below, and an HDD unit housing portion 13 is formed above. The FDD unit accommodating portion 12 accommodates the FDD unit 5, and the HDD unit accommodating portion 13 accommodates the HDD unit 4. Since the insertion opening 13 a of the HDD unit housing portion 13 is blocked by the FDD unit 5, the bottom surface 4 b of the HDD unit 4 faces the FDD unit 5. In other words, the HDD unit 4 is supported in a space formed by the FDD unit 5 and the HDD unit housing portion 13.

  The FDD unit 5 and the HDD unit 4 generate electromagnetic waves and heat during their operation. In particular, when the notebook computer 1 is used, the HDD unit 4 that operates always generates high heat. Therefore, the heat generated by the HDD unit 4 is exhausted by the inflow and outflow of air through the vent hole 11 and the HDD connector outlet 19 formed in the HDD unit housing portion 13, thereby cooling the HDD unit 4. Is called.

  On the other hand, the electromagnetic waves generated by the HDD unit 4 are shielded by the conductive layer 20 formed on the lower housing 7, the conductive layer 21 formed on the upper housing 8, and the conductive layer 24 formed on the outer cover 23. Here, particularly at the periphery of the vent hole 11, there is a broken line area A where the conductive layer 21 is not formed at the periphery of the upper housing vent hole 8 f of the upper housing 8, but the side wall 13 c constituting the HDD unit housing portion 13 of the lower housing 7. A conductive layer 20 is formed on the periphery of the lower housing vent 13 b formed on the side facing the inner side of the side wall 8 b of the upper housing 8.

  That is, the side wall 13 c as the second side wall of the lower housing 7 is provided so as to be opposed to the inner side of the side wall 8 b as the first side wall of the upper housing 8.

  The upper housing vent 8f as the first opening formed in the side wall 8b of the upper housing 8 and the lower housing vent 13b as the second opening formed in the side wall 13c of the lower housing 7 through the vent. 11 is configured.

  A plurality of upper housing vents 8 f are provided in a slit shape in the vertical direction of the housing 2. The lower housing vent 13b envelops a plurality of slit-like vents constituting the upper housing vent 8f. That is, the opening area of the lower housing vent 13b is configured to be larger than the opening area of the upper housing vent 8f. The opening area of the upper housing vent 8f and the lower housing vent 13b may be the same.

  The conductive layer 21 is not formed on the periphery of the upper housing vent 8f, while the conductive layer 20 is formed on the periphery of the lower housing vent 13b. The vent 11 shields electromagnetic waves generated by the HDD unit 4 by the conductive layer 20 formed at the periphery of the lower housing vent 13b.

  Therefore, according to the notebook computer 1 according to the present embodiment, the HDD unit of the lower housing 7 can be formed without forming the conductive layer 21 on the peripheral edge of the upper housing vent 8f so as not to impair the beauty of the notebook computer 1. The conductive layer 20 formed on the side wall 13c constituting the housing portion 13 can sufficiently block electromagnetic waves generated by the HDD unit 4 in the vent hole 11 corresponding to the hole communicating with the outer surface of the housing 2.

  In addition, the conductive layer 20 is formed on the side wall 13c of the HDD unit housing portion 13 of the lower housing 7 that does not constitute the design surface of the notebook personal computer 1 so as to block the electromagnetic waves at the periphery of the vent hole 11, so that the conductive layer 20 is formed. It is not necessary to perform a masking process around the lower housing vent 13b at the time of construction, the work can be simplified, and work mistakes can be avoided and costs can be reduced.

  Furthermore, since the side wall of the housing 2 has a double structure by the side wall 13c of the HDD unit housing portion 13 of the lower housing 7, the strength of the housing 2 is improved. In particular, the resistance to external force acting on the HDD unit 4 accommodated in the HDD unit accommodating portion 13 is improved. By improving the rigidity of the lower housing 7, it is possible to avoid molding defects and work errors in the assembly process.

  Therefore, according to the notebook personal computer 1 according to the present embodiment, it is possible to easily shield the electromagnetic wave around the vent hole provided in the non-conductive casing.

[Second Embodiment]
A second embodiment of the electronic apparatus according to the invention will be described with reference to FIG.

  FIG. 7 is a partial cross-sectional view of a notebook personal computer showing an example of an electronic apparatus according to the second embodiment of the present invention.

  In this notebook type personal computer 1A, the same components as those of the notebook type personal computer 1 of the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 7, the housing 2 of the notebook personal computer 1 </ b> A showing an example of an electronic device includes a lower housing 7 and an upper housing 8.

  A conductive member 35 is sandwiched between the side wall 13 c of the HDD unit housing portion 13 formed in the lower housing 7 and the side wall 8 b of the upper housing 8. As the conductive member 35, an elastic conductor such as an elastic body around which a metal mesh is wound or a conductive rubber is used.

  The conductive member 35 has a communication hole 35a that allows the lower housing vent 13b and the upper housing vent 8f to communicate with each other. The conductive member 35 establishes conduction between the conductive layer 20 formed on the inner surface of the lower housing 7 and the conductive layer 21 formed on the inner surface of the upper housing 8. In addition, the conductive member 35 seals the vent 11 formed by the lower housing vent 13b and the upper housing vent 8f and the gap formed by the inner surface of the lower housing 7 and the inner surface of the upper housing 8. Is made. Therefore, the air that cools the HDD unit 4 efficiently flows into and out of the HDD unit housing portion 13.

  That is, according to the notebook personal computer 1A according to the present embodiment, the HDD unit of the lower housing 7 can be formed without forming the conductive layer 21 on the periphery of the upper housing vent 8f so as not to impair the beauty of the notebook personal computer 1A. The conductive layer 20 formed on the side wall 13c constituting the housing portion 13 can sufficiently block electromagnetic waves generated by the HDD unit 4 in the vent hole 11 corresponding to the hole communicating with the outer surface of the housing 2.

  In addition, since the conductive layer 20 is formed on the side wall 13c of the HDD unit housing portion 13 of the lower housing 7 that does not constitute the design surface of the notebook computer 1A, and the electromagnetic waves around the periphery of the vent hole 11 are blocked, the conductive layer 20 is formed. It is not necessary to perform a masking process around the lower housing vent 13b at the time of construction, the work can be simplified, and work mistakes can be avoided and costs can be reduced.

  Furthermore, since the side wall of the housing 2 has a double structure by the side wall 13c of the HDD unit housing portion 13 of the lower housing 7, the strength of the housing 2 is improved. In particular, the resistance to external force acting on the HDD unit 4 accommodated in the HDD unit accommodating portion 13 is improved. By improving the rigidity of the lower housing 7, it is possible to avoid molding defects and work errors in the assembly process.

  Furthermore, a conductive member 35 having elasticity is sandwiched between the lower housing vent 13 b of the lower housing 7 and the upper housing vent 8 f of the upper housing 8, and the HDD unit 4 is generated at the vent 11. The electromagnetic wave can be sufficiently blocked, and the air that cools the HDD unit 4 can efficiently flow into and out of the HDD unit housing portion 13.

  Therefore, according to the notebook type personal computer 1A according to the present embodiment, it is possible to easily shield the electromagnetic waves around the vent hole provided in the non-conductive casing.

[Third Embodiment]
A third embodiment of the electronic apparatus according to the invention will be described with reference to FIG.

  FIG. 8 is a partial perspective view of the inner surface of the upper housing of the notebook computer showing an example of the electronic apparatus according to the third embodiment of the present invention.

  In this notebook type personal computer 1B, the same components as those of the notebook type personal computer 1 of the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 8, an upper housing vent 8 f serving as a hole communicating with an outer surface serving as a design surface of the casing 2 is provided in the upper housing 8 constituting the casing 2 of the notebook computer 1 </ b> B showing an example of an electronic device. It is formed. A conductive member 35A is provided around the upper housing vent 8f.

  The conductive member 35A is sandwiched between the side wall 13c of the HDD unit housing portion 13 formed in the lower housing 7 and the side wall 8b of the upper housing 8, and communicates the lower housing vent 13b and the upper housing vent 8f. Let

  As the conductive member 35A, an elastic body such as an elastic body around which a metal mesh is wound or a conductive rubber is used. The conductive member 35 </ b> A establishes conduction between the conductive layer 20 formed on the inner surface of the lower housing 7 and the conductive layer 21 formed on the inner surface of the upper housing 8. Further, the conductive member 35A seals the vent 11 formed by the lower housing vent 13b and the upper housing vent 8f and the gap formed by the inner surface of the lower housing 7 and the inner surface of the upper housing 8. Is made. Therefore, the air that cools the HDD unit 4 efficiently flows into and out of the HDD unit housing portion 13.

  That is, according to the notebook personal computer 1B according to the present embodiment, the HDD unit of the lower housing 7 can be formed without forming the conductive layer 21 on the periphery of the upper housing vent 8f so as not to impair the beauty of the notebook personal computer 1B. The conductive layer 20 formed on the side wall 13c constituting the housing portion 13 can sufficiently block electromagnetic waves generated by the HDD unit 4 in the vent hole 11 corresponding to the hole communicating with the outer surface of the housing 2.

  In addition, since the conductive layer 20 is formed on the side wall 13c of the HDD unit housing portion 13 of the lower housing 7 that does not constitute the design surface of the notebook computer 1B, the conductive layer 20 is formed in order to block electromagnetic waves around the periphery of the vent hole 11. It is not necessary to perform a masking process around the lower housing vent 13b at the time of construction, the work can be simplified, and work mistakes can be avoided and costs can be reduced.

  Furthermore, since the side wall of the housing 2 has a double structure by the side wall 13c of the HDD unit housing portion 13 of the lower housing 7, the strength of the housing 2 is improved. In particular, the resistance to external force acting on the HDD unit 4 accommodated in the HDD unit accommodating portion 13 is improved. By improving the rigidity of the lower housing 7, it is possible to avoid molding defects and work errors in the assembly process.

  Furthermore, an elastic conductive member 35A is sandwiched between the lower housing vent 13b of the lower housing 7 and the upper housing vent 8f of the upper housing 8, and the HDD unit 4 is generated at the vent 11. The electromagnetic wave can be sufficiently blocked, and the air that cools the HDD unit 4 can efficiently flow into and out of the HDD unit housing portion 13.

  Therefore, according to the notebook personal computer 1 </ b> B according to the present embodiment, it is possible to easily shield the electromagnetic waves around the vent hole provided in the non-conductive casing.

  A device that can be cooled by the vent 11 provided in the housing 2 of the notebook personal computer 1, 1A, 1B according to the present invention is not limited to the HDD unit 4, but a CPU, GPU, SSD (Solid State Drive). Etc.), and can be applied to devices that generate heat and electromagnetic waves.

  The electronic device according to the present invention is not limited to a notebook personal computer, but may be a mobile phone, a personal computer, a digital camera, a PDA (Personal Digital Assistance), an electronic notebook, a portable wireless device, and other electronic devices. May be.

The bird's-eye view which showed the external appearance of the notebook-type personal computer which shows an example of the electronic device which concerns on 1st Embodiment of this invention. The left view which showed the external appearance of the notebook type personal computer which shows an example of the electronic device which concerns on 1st Embodiment of this invention. The figure which shows the state which removed the FDD unit and HDD unit from the notebook personal computer which shows an example of the electronic device which concerns on 1st Embodiment of this invention. The figure which shows the state which removed the FDD unit and HDD unit from the notebook personal computer which shows an example of the electronic device which concerns on 1st Embodiment of this invention. 1 is a partial perspective view of an inner surface of an upper housing of a notebook computer showing an example of an electronic apparatus according to a first embodiment of the present invention. 1 is a partial longitudinal sectional view of a notebook computer showing an example of an electronic apparatus according to a first embodiment of the present invention. The partial cross-sectional view of the notebook-type personal computer which shows an example of the electronic device which concerns on 2nd Embodiment of this invention. The partial perspective view of the upper housing inner surface of the notebook type personal computer which shows an example of the electronic device which concerns on 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A, 1B Notebook-type personal computer 2 Case 2a Upper surface part 2b Back part 2c Hinge part 2d Left side part 2e Front end part 2f Bottom part 3 Display part 4 HDD unit 4a Side part 4b Bottom face 5 FDD unit 5a Front part 5b Side part 5c Bottom Part 5d Back 6 Keyboard 7 Lower housing 7a Bottom wall 7b, 7c Side wall 7d Front wall 7e Rear wall 7f Recess 8 Upper housing 8a Upper wall 8b, 8c Side wall 8d Front wall 8e Rear wall 8f Upper housing vent 10 Function expansion part 11 Vent 12 FDD unit housing 12a Insert 12b Notch 12c, 12d, 12e Side wall 12f Ceiling wall 13 HDD unit housing 13a Insert 13b Lower housing vent 13c, 13d, 13e, 13f Side wall 13g Ceiling wall 13h 15 Guide convex portion 16 FDD connector outlet 18 HDD block Racket locking recess 18a Screw insertion hole 19 HDD connector lead-out port 20, 21 Conductive layer 22 Flexible disk insertion port 23 Outer cover 23a Bottom wall 23b, 23c, 23d Side wall 23e Notch 23f Convex piece 24 Conductive layer 25 Screw 26 Guide groove 28 Coupling hole 31 HDD bracket 31a Base 31b Locking convex part 31c Coupling hole 32 Partition convex part 35 Conductive member 35a Communication hole

Claims (3)

A non-conductive first housing having a first sidewall;
A non-conductive second housing having a second side wall provided so as to face and overlap the inside of the first side wall, wherein the first housing has a first area. A first opening penetrating the first side wall;
The second housing has a second opening that has an area larger than the area of the first opening and penetrates the second side wall to face the first opening. ,
The electronic device according to claim 1, wherein a conductive layer is provided on at least a region surrounding the second opening on a surface of the second side wall on the first side wall side. The electronic device according to claim 1, wherein a conductive layer is not formed on a peripheral edge of the first opening. Sandwiched between the first side wall and the second side wall, between the first opening and the second opening, and between the first opening and the first opening. The electronic apparatus according to claim 2, further comprising a conductive member that seals the space.

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