JP2007048085A - Electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an electronic device that attains improved waterproofness. <P>SOLUTION: The electronic device 1 is provided with a casing 8 having a housing part 6 that can house a drive unit 8 and a plurality of wirings 48a, 48b and 48c provided in the casing. A wiring holder 40 is provided in the casing. The wiring holder has a plate-like main body 42, wherein a portion of the housing part is regulated, and a holding part 44 provided in the main body to hold at least a portion of the wirings. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic device including a storage unit in which a drive unit can be loaded.

  For example, an electronic device such as a portable computer includes a housing. In the housing, a storage unit capable of storing a drive unit such as a CD drive, a hard disk drive, or a DVD drive is formed. In addition, a circuit board on which a large number of electronic components are mounted and a plurality of wirings (harnesses) that electrically connect the components are provided in the housing.

  The wiring as described above needs to be routed along a desired position in the housing. In particular, in a small electronic device, an installation space for electronic components including wiring is small, and there is a possibility that the wiring may interfere with other electronic components or a storage unit. Further, the wiring operation is troublesome, which causes a decrease in assembling ability.

In order to facilitate the handling of such wiring, a cable housing duct has been proposed (see, for example, Patent Document 1). According to Patent Literature 1, by storing a plurality of wires in a cable storage duct, the plurality of wires are constrained to one bundle and held at a desired position.
Japanese Utility Model Publication No. 5-23581

  The cable storage duct is configured to cover and store a plurality of wires over almost the entire length. Therefore, the storage duct itself is formed to be relatively thick, and both end portions thereof are fixed at desired positions. Therefore, such a cable storage duct can be provided in a relatively large device, for example, an automatic teller machine as disclosed in Patent Document 1, but in a relatively small electronic device. This makes it difficult to secure an installation space for the storage duct inside the housing. In addition, the cable storage duct and other electronic components may interfere with each other in the housing, and the electronic components may be damaged.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an electronic device capable of facilitating wiring and improving assembly.

  In order to achieve the above object, an electronic device according to an embodiment of the present invention is provided in a housing having a housing portion capable of housing a drive unit, a plurality of wires provided in the housing, and the housing. And a wiring holder having a plate-like main body defining a part of the storage part and a holding part provided in the main body and holding at least a part of the wiring.

  According to this configuration, it is possible to provide an electronic apparatus that can easily route a plurality of wires by the wiring holder and can improve the assemblability.

  Hereinafter, embodiments in which an electronic apparatus according to the present invention is applied to a portable computer will be described in detail with reference to the drawings.

  1 to 3 show a portable computer 1 according to a first embodiment of the present invention. As shown in FIG. 1, the portable computer 1 includes a device main body 2 and a display unit 3.

  As shown in FIG. 1, the portable computer 1 includes a device main body 2 and a display unit 3 supported by the device main body 2. The device body 2 includes a housing 4 made of, for example, a synthetic resin. The housing 4 has a base 5 and a top cover 4a and has a flat rectangular box shape. A housing 6 is formed in the housing 4, and an optical disk drive (hereinafter referred to as ODD) 8, for example, can be detachably loaded as a drive unit in the housing. The storage unit 6 can be selectively loaded with other drive units such as a hard disk drive (HDD) and a magnetic disk drive (FDD) (not shown) instead of ODD.

  As shown in FIGS. 1 and 2, in the housing 4, a keyboard placing part 10 is provided at the center of the top cover 4 a, and a keyboard 12 is placed on the keyboard placing part. Speakers 14 are respectively exposed on the left and right of the rear end portion of the top cover 4a. The top front end of the top cover 4a constitutes a palm rest portion 16, and a touch pad 15 and a click button 17 are provided at the approximate center of the palm rest portion.

  As shown in FIG. 1, the display unit 3 includes a flat rectangular box-shaped housing 18 and a liquid crystal display panel 20 accommodated in the housing. The display surface 20 a of the liquid crystal display panel 20 is exposed to the outside through a display window 21 formed in the housing 18. The housing 18 has a pair of leg portions 22 projecting from one end thereof. These leg portions 22 are rotatably supported on the rear end portion of the housing 4 via a hinge portion (not shown). As a result, the display unit 3 can rotate between a closed position where the keyboard 12 is tilted so as to cover the keyboard 12 from above and an open position where the keyboard 12 stands up behind the keyboard 12.

  As shown in FIGS. 2 and 3, the base 5 of the housing 4 includes a substantially rectangular bottom wall 4b facing the top cover 4a, left and right side walls 4c erected around the bottom wall, a front wall 4d, and The rear wall 4e is integrally formed. A printed circuit board 24 is provided on the bottom wall 4b. On the printed circuit board 24, a plurality of semiconductor elements 25 including a CPU 25a, a modem board 26, a modem connector 27, a USB board 28, and other various electronic components are mounted.

  The base 5 is provided with a cooling fan 30 for cooling the semiconductor element 25 including the CPU 25a, a card slot 32 for loading a card-like electronic device such as a PC card, and an RGB substrate 31. The RGB substrate 31 is connected to the liquid crystal display panel 20 of the display unit 3 via the cable 9.

  As described above, the housing 4, here the base 5, is formed with a flat, substantially rectangular box-shaped storage portion 6. The storage unit 6 has an insertion port 6 a that is opened in the side wall 4 c of the base 5. The ODD 8 can be loaded into and removed from the storage unit 6 through the insertion port 6a. A modem connection terminal 34 is provided in the base 5, and this modem connection terminal faces an opening formed in the side wall 4 c of the base 5. A plurality of, for example, two USB connectors 35 are provided on the USB board 28. These USB connectors 35 are opposed to the openings formed in the side wall 4c.

  As shown in FIG. 3, a wiring holder 40 holding a plurality of wirings (harnesses) is provided on the base 5 in the housing 4. As shown in FIGS. 3 and 4, the wiring holder 40 includes a main body 42 formed in a substantially L-shaped plate shape, and a holding portion 44 provided on the main body and holding at least a part of the wiring. . The main body 42 integrally includes a substantially rectangular plate-shaped cover portion 42a and a guide portion 42b extending substantially at a right angle from one end of the cover portion. A large number of through holes are formed in the main body 42 in order to reduce the weight.

  The holding part 44 has a plurality of, for example, three ribs 45 a, 45 b, 45 c formed on the main body 42. The three ribs 45a, 45b, 45c extend in parallel with a gap therebetween, and extend substantially over the entire length in the width direction of the cover portion 42a. Between the ribs 45a, 45b, 45c, elongated recesses 46a, 46b capable of accommodating wiring are defined. The recesses 46a and 46b extend over substantially the entire length in the width direction of the cover portion 42a, and both end portions thereof are opened to the outside to form wiring outlets. One rib 45c is formed in an L shape along the main body 42, and extends to the vicinity of the extending end portion 42c of the guide portion 42b. The main body 42 is provided with a plurality of engaging protrusions 47 that face the ribs 45c. The engaging projection 47 cooperates with the rib 45c to form a recess 46c that can store and position the wiring. The recess 46c extends in a direction orthogonal to the recesses 46a and 46b. The wiring holder 40 is integrally formed of synthetic resin, for example, polycarbonate.

  As shown in FIGS. 3 to 9, the holding portion 44 of the wiring holder 40 holds a plurality of, for example, three wires 48a, 48b, and 48c. That is, the wirings 48 a and 48 b are held by the wiring holder 40 in a state in which intermediate portions thereof are fitted in the recesses 46 b of the holding unit 44. One end of each of the wirings 48a and 48b is drawn out of the wiring holder 40 from one outlet of the recess 46b, and the other end is drawn out of the wiring holder 40 from the other outlet of the recess 46b. Yes. The wiring 48 c is held by the wiring holder 40 in a state where most of the wiring 48 c is fitted in the recesses 46 a and 46 cb of the holding portion 44. One end of the wiring 48c is drawn out of the wiring holder 40 from the outlet of the recess 46a.

  As shown in FIGS. 5 and 8, the holding tape 50 is affixed to the main body 42 of the wiring holder 40 to cover at least a part of the recesses 46 a and 46 b. The wirings 48a, 48b, 48c are prevented from coming out of the recesses 46a, 46b by the holding tape 50, and are securely held in the recesses. As a configuration for holding the wiring in the recess, a retaining claw may be provided on the ribs 45a, 45b, and 45c in addition to the holding tape. In addition, by matching the width of the recesses 46a and 46b with the diameter of the wiring that accommodates the wiring, the wiring can be sufficiently held without using a holding tape or a nail.

  In the wiring holder 40, a ground terminal 52 is fixed to the extended end portion 42c of the guide portion 42b as a contact terminal that contacts the drive unit 8.

  As shown in FIG. 3, the wiring holder 40 to which the wiring is attached is fixed to the bottom wall 4 b of the base 5 in the housing 4. Here, for example, the base 5 is screwed with a plurality of screws 54. At this time, the ground terminal 52 fixed to the wiring holder 40 is fastened together with a screw 54 and is electrically connected to the ground of the base 5.

  One end of each of the wirings 48 a and 48 b held by the wiring holder 40 is connected to the modem connector 27. The other end of the wiring 48 a is connected to the modem connection terminal 34. The other end of the wiring 48 b is connected to the modem board 29. Also, one end of the wiring 48 c is connected to the RGB substrate 31, and the other end is connected to the printed circuit board 24 in the vicinity of the wiring holder 40.

  As shown in FIG. 3 and FIGS. 6 to 9, the cover portion 42 a of the wiring holder 40 covers at least a part of the storage portion 6 of the base 5, here the end located on the side opposite to the insertion port 6 a. And a part of the storage section 6 is defined. The cover portion 42a of the wiring holder 40 is located between the storage portion 6 and the top cover 4a, and further overlaps with the keyboard placement portion 10 of the top cover. Further, the plurality of ribs 45a and 45b formed on the wiring holder 40 extend so as to overlap the storage portion 6, project from the main body 42 of the wiring holder 40 to the top cover 4a side, and are adjacent to and opposed to the inner surface of the top cover. ing. The recesses 46a and 46b of the holding portion 44 are closed by the top cover 4a. As a result, the wires 48 a, 48 b and 48 c are more reliably held by the holding portion 44 of the wire holder 40.

  The guide part 42b of the wiring holder 40 is arranged along the loading direction of the drive unit 8 with respect to the storage part 6, forms a side edge of the storage part 6, and constitutes a guide for guiding the drive unit.

  The wirings 48a, 48b, and 48c are held by the wiring holder 40 at a desired position, here, around the storage unit 6 and routed without interfering with the storage unit and other electronic components.

  As shown in FIGS. 6 to 8, a plurality of ribs 56 project from the inner surface of the top cover 4a, and a recess 56a is formed between these ribs. The other wiring 58 is accommodated in the recess 56a, and is held and positioned. The rib 56 on the top cover 4a side is positioned side by side with the rib 45a of the wiring holder 40, and is adjacent to and opposed to the main body 42 of the wiring holder 40. Thereby, the recess 58a is closed by the wiring holder 40, and the wiring 58 is securely held in the recess 58a.

  On the other hand, the outer surface of the ODD 8 loaded in the storage unit 6 contacts the ground terminal 52 and is connected to the ground of the housing 4. As shown in FIG. 7, the connector 8 a provided at the front end of the ODD 8 is connected to the connector 24 a mounted on the printed circuit board 24. Thereby, the ODD 8 is connected to a control unit (not shown) via the printed circuit board 24.

  According to the portable computer 1 configured as described above, the wiring holder 40 holds and positions at least a part of the plurality of wirings, whereby the plurality of wirings are routed to a desired position, and the storage unit 6 or other Interference with electronic components can be prevented. The wiring holder 40 has a simple and thin structure including a plate-like main body 42 and a plurality of ribs, and can be arranged in the housing 4 without requiring a large installation space. At this time, the wiring holder 40 constitutes a part of the storage unit 6, so that the installation space in the housing 4 can be used more effectively.

  By providing the wiring holder 40 below the keyboard mounting portion 10 between the storage unit 6 and the top cover 4a, the top cover 4a can be supported and reinforced by the wiring holder 40. Normally, when the key of the keyboard 12 is pressed strongly during the operation of the portable computer 1, the keyboard 12 and the keyboard mounting portion 10 of the top cover 4 a are pressed and deformed, and vibrate in the thickness direction of the housing 4. The so-called top cover trampoline phenomenon occurs. In this case, the drive unit 8 loaded in the storage unit 6 or the electronic component provided in the housing 4 may interfere with the top cover 4a, and the drive unit or the electronic component may be damaged. However, according to the present embodiment, the trampoline phenomenon of the top cover 4a can be suppressed by the wiring holder 40.

  At this time, the plurality of ribs 45a, 45b, 45c of the wiring holder 40 extend over almost the entire length of the wiring holder 40 in the width direction, and increases the mechanical strength of the wiring holder itself. Therefore, the trampoline phenomenon of the top cover 4a can be more reliably suppressed by the wiring holder. By providing the rib 56 on the inner surface of the top cover 4a, the strength of the top cover itself can be increased. Further, since the rib 56 is adjacent to and opposed to the main body 42 of the wiring holder 40, the rib 56 and the wiring holder 40 can jointly prevent the top cover 4a from being deformed or vibrated.

  When the portable computer 1 is assembled, a plurality of wires can be mounted in advance on the wiring holder 40 and routed, and the wiring holder and the plurality of wires can be prepared as one unit. By attaching this unit to the base of the housing, it is possible to disperse the work concentration in the assembly process and reduce assembly failures such as wiring routing mistakes.

  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. In addition, 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. Furthermore, constituent elements over different embodiments may be appropriately combined.

  In the wiring holder, the number of recesses for holding the wiring is not limited to two, and may be one or three or more. Similarly, the number of wires held by the wiring holder and the number of ribs can be increased or decreased as necessary.

The wiring holder is not limited to synthetic resin, and may be formed of metal. In this case, the strength of the wiring holder can be improved. Further, a part of the wiring holder can be brought into contact with the drive unit, and the drive unit can be connected to the ground of the housing via the wiring holder.
The present invention is not limited to a portable computer but can be applied to other electronic devices such as a PDA (Personal Digital Assistant), a portable terminal, and an electronic notebook.

FIG. 1 is a perspective view of a portable computer according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a device main body and a keyboard of the portable computer. FIG. 3 is a perspective view showing an internal structure of the device main body. FIG. 4 is a perspective view showing a wiring holder of the portable computer. FIG. 5 is a perspective view showing a wiring holder to which wiring is mounted. FIG. 6 is a cross-sectional view of the device main body taken along line AA in FIG. 7 is a cross-sectional view of the device main body taken along line BB in FIG. FIG. 8 is an enlarged cross-sectional view showing a holding portion of the wiring holder shown in FIG. 9 is a cross-sectional view of the device main body taken along line CC in FIG.

Explanation of symbols

1 ... portable computer, 2 ... device body, 3 ... display unit,
4 ... Case, 4a ... Top cover, 5 ... Base, 6 ... Storage section, 8 ... ODD,
10 ... Keyboard placement part, 12 ... Keyboard, 40 ... Wiring holder,
42 ... main body, 44 ... holding part, 45a, 45b, 45c ... rib,
46a, 46b ... recess, 48a, 48b, 48c ... wiring, 50 ... holding tape

Claims (8)

A housing having a storage section capable of storing the drive unit;
A plurality of wires provided in the housing;
A wiring holder having a plate-like main body provided in the housing and defining a part of the storage part; and a holding part provided in the main body and holding at least a part of the wiring;
With electronic equipment.   The electronic device according to claim 1, wherein the holding portion of the wiring holder includes a plurality of ribs that are formed in the main body and that define a recess that accommodates the wiring.   The plurality of ribs extend in parallel to each other and are positioned so as to overlap the storage portion, and the recess extends along the rib and has both end portions for drawing the wiring to the outside. 2. The electronic device according to 2.   The casing includes a top cover provided to face the storage portion and a keyboard placed on the top cover, and the wiring holder is disposed between the storage portion and the top cover. The electronic device according to claim 3 provided.   The electronic device according to claim 4, wherein the rib protrudes from a main body of the wiring holder toward the top cover.   2. The electronic apparatus according to claim 1, wherein the housing includes a rib formed on an inner surface thereof and facing the wiring holder, and the rib of the housing is provided along with the rib of the wiring holder.   The electronic apparatus according to claim 1, wherein the wiring holder has a contact terminal that contacts a drive unit loaded in the storage unit, and the contact terminal is connected to a ground of the housing.   The main body of the wiring holder includes a plate-like cover portion provided to cover at least a part of the storage portion, a guide portion that extends from the cover portion and guides the movement of the drive unit in the storage portion. The electronic apparatus according to claim 1, further comprising:

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