JP2011070487A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electronic equipment which is improved in strength and rigidity to impact input concerning a corner part formed where a bottom face crosses a side face. <P>SOLUTION: There is provided a notebook computer provided with a casing 31 which incorporates an electronic circuit mounted with an electronic component for processing a signal, wherein the casing has a side face 31s specifying the thickness of the casing and a bottom face 31b which is almost orthogonal to the side face, and a corner part formed when the bottom face crosses the side face, includes a level difference part 36 formed in parallel with the bottom face by inwardly leveling down the lower part of the side face by prescribed amounts. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic device such as a notebook personal computer (hereinafter, abbreviated as “notebook personal computer” as appropriate), and more particularly to an electronic device with improved housing robustness that incorporates an electronic circuit.

  As is well known, for example, an electronic device such as a notebook personal computer includes a casing in which various electronic circuits are incorporated. For example, Patent Document 1 discloses that an upper corner of an exterior cover is used in an electronic apparatus having an exterior cover that protrudes outward from the main body frame, such as an image forming apparatus such as a copying machine, AV equipment, and other electrical appliances. Inclined parts at the corners and lower corners, and air intakes at the inclined parts at the lower corners, while air outlets are provided at the inclined parts in the upper corners, forcing air into at least one of them After installing the fan for taking in or exhausting the air, circulating the air taken in from the air intake through the electronic device through a predetermined route, and finally exhausting it from the air outlet, the inside of the electronic device The structure which dissipated the heat | fever generate | occur | produced by this to the exterior of an apparatus is disclosed.

  With the configuration inclined at a predetermined angle with respect to the exterior cover, when moving the electronic device, there is an effect of preventing the operator from accidentally raising the hand under the electronic device and damaging the exterior cover. .

JP 2006-059945 A

  By the way, when a foreign object collides with the corner portion formed at a substantially right angle by the bottom and side surfaces of the housing, the corner portion may be deformed by the impact, and this corner is part of the robustness of the housing. The part is also required to increase the strength and rigidity against impact input. However, Patent Document 1 does not disclose anything about the robustness of the corner caused by the collision of the foreign material with the corner as described above.

  Therefore, the present invention has been made with a basic object of improving the strength and rigidity against impact input at the corner formed by the intersection of the bottom surface and the side surface.

  For this reason, the electronic device according to the present invention is an electronic device including a housing containing an electronic circuit in which an electronic component for processing a signal is mounted, and the housing defines a thickness of the housing. A corner portion having a side surface and a bottom surface substantially orthogonal to the side surface, and a step portion formed in parallel with the bottom surface by lowering the lower portion of the side surface by a predetermined amount at a corner portion where the bottom surface and the side surface intersect. It is characterized by being provided.

  According to the present invention, the lower portion of the side surface is stepped inward by a predetermined amount at the corner portion where the bottom surface and the side surface of the housing intersect, that is, the lower portion of the side surface is bent inward and then extended toward the bottom surface. The step part formed by bending is provided. By providing such a stepped portion (that is, a bent portion), it is possible to effectively increase the strength and rigidity against impact input of the corner portion where the bottom surface and the side surface intersect.

The whole perspective view which shows the usable state of the notebook computer concerning an embodiment Overall perspective view showing the notebook PC not in use Top view of the notebook computer when not in use Side view of the notebook computer when not in use Bottom view of the notebook computer when not in use The perspective view of the level | step-difference part containing the fin accommodating part of the 2nd housing | casing of the said notebook personal computer. Sectional view along line Y7-Y7 in FIG.

  The electronic device of the present invention can take the following aspects based on the above-described configuration. That is, in the electronic device having the above-described configuration, the housing is provided with a fin housing portion that houses a heat radiating fin that dissipates heat generated by the electronic component to the outside, and the fin housing portion is provided in the vicinity of the heat radiating fin. The radiation fin may have a curved surface shape corresponding to the step shape of the step portion, and may be attached in the vicinity of the opening portion.

  In this case, since the radiating fin has a bent shape corresponding to the step shape of the stepped portion, it can be attached without hindrance in the vicinity of the opening that opens to the outside of the housing of the fin housing portion, The layout is not impaired.

(Embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, taking a so-called notebook computer as an example.
In the following description, terms meaning a specific direction (for example, “up”, “down”, “left”, “right”, and other terms including them, “clockwise direction”, “counterclockwise” ”) Is used to facilitate understanding of the invention with reference to the drawings, and the present invention should not be construed as being limited by the meaning of these terms. Absent.

  1 and 2 are perspective views showing a usable state (open state) and a non-use state (closed state) of the notebook computer according to the present embodiment, respectively. FIGS. 3, 4 and 5 are a plan view, a side view and a bottom view of the notebook personal computer when not in use.

  As shown in these drawings, a notebook personal computer W as an electronic apparatus according to the present embodiment generates a display unit 10 having a display screen 12 that is, for example, a liquid crystal display, and a display signal input to the display unit 10. The operation control part 30 which can do is provided. The operation control unit 30 includes an input device 32 such as a keyboard, a signal processing circuit that generates a display signal to be output to the display unit based on an input operation by the input device 32, a central processing unit (so-called CPU), These peripheral parts (all not shown) are included. Further, a touch pad 33 is provided on the front side of the keyboard 32 when viewed from the user when the user (user) operates the notebook computer W, and the user traces the touch pad 33 in the vertical and horizontal directions. Only the cursor can be moved, the display screen 12 can be scrolled, and the like.

The display unit 10 is housed in a display unit side housing 11 (first housing), and the periphery and back surface thereof are covered, while the control operation unit 30 includes an operation control unit side housing 31 (first housing). The two housings 10 and 30 are connected to each other by a hinge mechanism 20 so as to be opened and closed.
More specifically, both the first housing 11 and the second housing 31 are formed in a substantially rectangular shape as a whole in plan view, and the sides 11r and 31r side (that is, the user takes note The two casings are relatively centered about the hinge shaft 21 (refer to FIG. 4) by connecting the notebook PC W in the operating state in which the personal computer W is operated as viewed from the user) via the hinge mechanism 20. Can be opened and closed. In the present specification, the “rectangular shape” includes a case of “square” as one form thereof.

The notebook personal computer W can be driven, for example, by power feeding from a rechargeable battery (battery), and as shown in FIG. A battery pack 50 that is unitized is detachably mounted.
The second casing 31 includes a side surface 31s that defines the thickness (height) of the casing 31, and the bottom surface 31b that intersects the side surface 31s at a substantially right angle. Conventionally, the bottom surface 31b and the side surface 31s intersect to form a substantially right-angled corner, but in the present embodiment, as a part of the robustness of the second housing 31, this corner against the impact input. In order to increase the strength and rigidity, a stepped portion 36 including a stepped-down portion 36c formed in parallel with the bottom surface 31b is provided at the corner portion by lowering the lower portion of the side face by a predetermined amount.

6 is a perspective view showing a lower portion of one side surface (the left side surface in FIGS. 3 and 5) of the second casing 31 of the notebook computer W, and FIG. 7 is a longitudinal section taken along line Y7-Y7 in FIG. FIG.
As can be clearly understood from FIG. 6, a lower portion of the side surface 31 s is stepped inward by a predetermined amount at a substantially right-angled corner formed by the bottom surface 31 b and the side surface 31 s of the second housing 31. A stepped portion 36 constituted by a stepped-down portion 36c inward and a vertical wall portion 36d extending downward is formed by bending the lower portion of the side surface 31s inward and then bending it so as to extend toward the bottom surface 31b. Is provided. By providing such a stepped portion 36 (that is, a bent portion), it is possible to effectively increase the strength and rigidity against impact input at the corner portion where the bottom surface 31b and the side surface 31s intersect.

  The second casing 31 of the notebook personal computer W incorporates various electronic circuits including the signal processing circuit and the central processing unit (so-called CPU). Is driven to raise temperature and generate heat. The heat generated by the electronic circuit incorporated in the second casing 31 of the notebook personal computer W is required to be dissipated to the outside of the casing 31 as quickly as possible.

  In this embodiment, in order to dissipate the heat generated by the electronic circuit built in the notebook personal computer W to the outside of the housing 31 as efficiently and promptly as possible, as will be described later, a so-called radiating fin 41 is used. (See FIG. 7) is used. And when providing this radiation fin 41 in the 2nd housing | casing 31, in order to improve heat radiation efficiency more, the opening part 40H to the exterior of the housing | casing of the radiation fin accommodating part 40 provided in the 2nd housing | casing 31 is 2nd. The heat dissipating fins 41 are arranged on the side surface 31s of the housing 31 and as close to the opening 40H as possible.

  Hereinafter, the radiation fin 41 and its arrangement structure will be described. In the present embodiment, at least some of the various electronic circuits (more preferably those that generate a large amount of heat) are as close as possible to them, for example, a rod-shaped or pipe-shaped heat transfer member having a predetermined thickness and width. 39 (so-called heat pipe) is extended and, as shown in FIG. 7, the end portion of the heat transfer member 39 is attached to the heat radiating fin 41 so as to promote heat dissipation to the outside of the second housing 31. I have to.

  The heat transfer member 39 is made of a metal material having a high thermal conductivity, such as copper, and is formed in a winding shape according to the arrangement structure of the target electronic circuit group. The heat radiation fin 41 is composed of a number of fins using a metal material having high thermal conductivity.

  As can be clearly understood from FIG. 7, a fin housing portion 40 that houses the heat radiation fin 41 is provided on one side portion (left side portion in FIGS. 3 and 5) of the second housing 31 of the notebook computer W. The fin housing part 40 includes an opening 40 </ b> H that opens the side surface 31 s of the second housing 31. For example, a resin-made grid-like member 42 (heat dissipating grill) covering the outer side of the heat dissipating fins 41 is attached to the opening 40H. In addition, a cooling fan 43 is disposed inside the radiation fin 41 in order to cool the radiation fin 41 and promote the dissipation of the heat transmitted by the heat transfer member 39. More preferably, the outer periphery of the radiating fin 41 is covered with a heat insulating layer 45 formed of, for example, a foam material having low thermal conductivity.

  The heat dissipating fins 41 are arranged as close as possible to the openings 40H to the outside of the housing of the fin housing portions 40 in order to dissipate the heat transmitted by the heat transfer member 39 to the outside of the second housing 31 as quickly as possible. However, as described above, in the present embodiment, in order to increase the strength and rigidity against the impact input at the substantially right-angled corner formed by the bottom surface 31b and the side surface 31s of the second housing 31 intersecting each other. Further, at the corner portion, the lower portion of the side surface 31s is stepped inward by a predetermined amount, that is, the lower portion of the side surface 31s is bent inward and bent so as to extend toward the bottom surface 31b. (That is, a bent portion) is provided.

  Therefore, the radiating fin 41 is provided with a bent portion 41k having a bent shape corresponding to the stepped shape of the stepped portion 36 at the lower portion of the fin housing portion 40 on the side facing the opening 40H. Therefore, even if the stepped portion 36 (that is, the bent portion) is provided at a substantially right-angled corner formed by the bottom surface 31b and the side surface 31s of the second housing 31 intersecting each other, the heat radiation fin 41 is not hindered (the fin It can be attached in the vicinity of the opening 40H of the fin housing portion 40 without protruding from the housing portion 40). Further, the area of the heat radiation fin 41 can be increased by the amount of the bent portion 41k, and the heat radiation efficiency can be improved.

  As described above, according to the present embodiment, the lower portion of the side surface 31s is stepped inward by a predetermined amount at the corner portion where the bottom surface 31b and the side surface 31s of the second housing 31 intersect, that is, the side surface A step portion 36 is provided which is formed by bending the lower portion of 31s inward and bending the lower portion toward the bottom surface 31b. By providing such a stepped portion 36 (that is, a bent portion), it is possible to effectively increase the strength and rigidity against impact input at the corner portion where the bottom surface 31b and the side surface 31s intersect. In this case, since the radiating fin 41 has a bent shape corresponding to the step shape of the step portion 36, there is no problem in the vicinity of the opening 30 </ b> H that opens to the outside of the housing of the fin housing portion 40. It can be attached and its layout is not impaired.

  Although the above description has been made with a notebook computer as an example, the present invention is not limited to such a case, and the present invention is effectively applied to various other electronic devices having heat radiation fins. be able to.

  Thus, it goes without saying that the present invention is not limited to the above-described embodiments and modifications, and various changes and design improvements can be made without departing from the scope of the invention. Yes.

  The present invention can be effectively used as a structure of a housing and a heat radiation fin in an electronic device such as a notebook computer.

31 Second housing 31b Bottom portion of second housing 31s Side portion of second housing 36 Stepped portion 40 Fin housing portion 40H Opening portion of fin housing portion 41 Radiation fin 41k Bending portion of heat radiation fin W Notebook computer

Claims (2)

An electronic device having a housing containing an electronic circuit mounted with an electronic component for processing a signal,
The housing has a side surface that defines the thickness of the housing and a bottom surface that is substantially orthogonal to the side surface, and a corner portion where the bottom surface and the side surface intersect each other with a predetermined amount of the lower side surface inward. A stepped portion formed in parallel with the bottom surface is provided.
An electronic device characterized by that. The housing includes a fin housing portion that houses a heat radiation fin that dissipates heat generated by the electronic component to the outside, and an opening that is connected to the fin housing portion in the vicinity of the heat radiation fin,
The radiating fin has a curved surface shape corresponding to the step shape of the stepped portion and is attached in the vicinity of the opening.
The electronic device according to claim 1.

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