JP5334195B2 - Housing structure of portable electronic device and portable electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a casing structure which can excellently protect a display device even when an external force is loaded to a portable electronic device of a two-axis hinge type, and to provide a portable electronic device. <P>SOLUTION: In a casing structure 10 of a portable electronic device, a display portion side case 100 and an operation portion side case are connected mutually through an opening-closing hinge mechanism so as to be freely opened/closed. The display portion side case 100 includes a display case 110 accommodating a display device 112 and a hinge case connected to the display case 110 through a rotation hinge mechanism 130 so as to be rotated. The display case 110 includes a front display case 140 accommodating the display device 112, a rear display case 150, and an interior rear frame 170 so arranged as to face one another. The front display case 140, the rear display case 150, and the interior rear frame 170 are respectively connected to the rotation hinge mechanism 130. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a casing structure of a portable electronic device and a portable electronic device.

  As a portable electronic device represented by a mobile phone, a so-called foldable device is known. The foldable device is configured such that an operation unit side housing in which operation keys are arranged and a display unit side housing including a display device are connected by an open / close hinge mechanism so that both housings overlap each other. It is possible to arbitrarily shift the open state that does not overlap each other.

  In recent years, a portable electronic device having a so-called biaxial hinge structure that can arbitrarily change the orientation of the display device in the open state has been proposed. In this type of biaxial hinge type device, the display unit side housing is divided into a display housing including a display device and a hinge housing that supports the display device, and a rotating hinge having the long side direction of the device as a rotation axis Both are connected by a mechanism. Thereby, the front state in which the display device faces the same side as the operation key arrangement surface and the back state in which the display device faces the opposite side can be arbitrarily shifted, and the convenience for the user is improved.

  Regarding a biaxial hinge-type portable electronic device, Patent Document 1 describes a display unit side body configured by joining a front case, an LCD (Liquid Crystal Display) frame, and a rear case in an overlapped state. Has been. A main LCD, which is a main display device, is mounted inside the LCD frame. In this housing structure, the rotary hinge mechanism is connected to the LCD frame, and the front case and the rear case are fixed to the LCD frame.

  Patent Document 2 describes a display unit side body configured by joining a cover panel, a support frame, and a rear case in an overlapped state. The main display (display device) is sandwiched between the cover panel and the support frame. In this housing structure, the rotary hinge mechanism is connected to the support frame, and the cover panel and the rear case are fixed to the support frame.

JP 2008-180328 A JP 2009-111675 A

  In recent portable electronic devices (hereinafter sometimes abbreviated as “devices”), display devices are becoming larger and casings are becoming thinner. Here, in the case of a biaxial hinge-type device, in addition to the normal drop impact and other destruction, the display device is also affected by the external force applied when the device is used due to the increase in size and thickness of the display unit side housing. It is a problem that damage occurs. Specifically, there is a problem that the display device is deformed by the impact force at the moment when the open / close hinge mechanism is opened from the closed state to the open state, or by the torque load when rotating the rotary hinge mechanism.

  More specifically, at the moment when the display unit side body has been opened from the closed state to the open state, a strong bending impact is applied to the device due to the inertia of the hand that opens the open / close hinge mechanism. As a result, excessive force acts on the connecting part between the display unit side body and the open / close hinge mechanism, and the display device inside the display unit side body may be damaged such as misalignment or mechanical damage. is there.

  In addition, when the display housing is pivoted in an open device, the torque applied to the display housing at the start of rotation of the rotary hinge mechanism or at the end of rotation in a display housing that has been reduced in thickness and has reduced torsional strength. As a result, the display device may be twisted and deformed.

On the other hand, in the case structure of Patent Document 1, the rotary hinge mechanism is connected to the LCD frame to which the display device is fixed, while the front case and the rear case are fixed to the LCD frame, and the rotary hinge mechanism is connected. Not connected to For this reason, the transmission path (load path) of the bending impact and torsional load to the device is the LCD frame on which the display device is fixed.
The housing structure of Patent Document 2 is the same, and the rotation hinge mechanism is connected to the support frame to which the display device is fixed, while the cover panel and the rear case are fixed to the support frame. Not connected. For this reason, the transmission path of the bending impact and torsional load to the device becomes the support frame to which the display device is fixed.
For this reason, in the case structures of Patent Documents 1 and 2, when an external force is applied to the display case, the display device is damaged or deformed, which becomes a problem.

  The present invention has been made in view of the above-described problems, and a housing structure that can satisfactorily protect a display device even when an external force is applied to a biaxial hinge type portable electronic device, And a portable electronic device.

  The case structure of the present invention is a case structure of a portable electronic device in which a display unit side case and an operation unit side case are connected to each other through an open / close hinge mechanism so as to be openable and closable. The housing includes a display housing in which a display device is accommodated, and a hinge housing that is rotatably connected to the display housing via a rotating hinge mechanism, and the rotation axis of the rotating hinge mechanism is the opening / closing hinge Extending in a direction intersecting the opening and closing axis of the mechanism, the display housing is configured to include a plurality of frame members that are arranged to face each other and accommodate the display device, and each of the plurality of frame members, It is connected to the rotating hinge mechanism.

  The portable electronic device of the present invention is a portable electronic device in which a display unit side case and an operation unit side case are connected to each other through an open / close hinge mechanism so as to be openable and closable. The body includes a display housing in which a display device is accommodated, and a hinge housing rotatably connected to the display housing via a rotating hinge mechanism, and the rotation shaft of the rotating hinge mechanism is the opening / closing hinge mechanism The display housing has a plurality of frame members that are arranged to face each other and accommodate the display device, and each of the plurality of frame members is It is connected to a rotary hinge mechanism.

  Note that the various components of the present invention do not have to be individually independent, that a plurality of components are formed as one member, and one component is formed of a plurality of members. It may be that a certain component is a part of another component, a part of a certain component overlaps a part of another component, and the like.

  According to the present invention, the plurality of frame members constituting the display housing are each coupled to the rotary hinge mechanism in a state in which the display device is accommodated. For this reason, the display housing and the rotating hinge mechanism are structurally integrated, and a transmission path for an external force applied to the display housing is continuously configured between the display housing and the rotating hinge mechanism. For this reason, the load of the external force with respect to the display device accommodated in the inside of a display housing | casing is suppressed, and the damage and deformation | transformation of a display device reduce.

It is a perspective view of the open state of the portable electronic device concerning embodiment of this invention. It is a perspective view of the closed state of the portable electronic device concerning the embodiment of the present invention. It is an upper perspective view which shows the decomposition | disassembly state of a display housing | casing. It is a downward perspective view which shows the decomposition | disassembly state of a display housing | casing. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. (A) It is an upper perspective view of a front display housing | casing, (b) It is the lower perspective view. (A) It is an upper perspective view of an interior rear frame, (b) It is the lower perspective view. (A) It is an upper perspective view of a rear display housing | casing, (b) It is the downward perspective view. It is the elements on larger scale of Fig.8 (a). It is an upper perspective view which shows the disassembled state of a front display housing | casing, an interior rear frame, and a rear display housing | casing.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.
FIG. 1 is a perspective view of the portable electronic device 20 of the present embodiment in an open state. FIG. 2 is a perspective view of the portable electronic device 20 according to the present embodiment in a closed state.
3 is an upper perspective view showing an exploded state of the display housing 110, and FIG. 4 is a lower perspective view thereof.
5 is a cross-sectional view taken along the line V-V in FIG. 1, and FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. However, the left side of FIG. 5 and the upper side of FIG. 6 are not shown.

  In the present embodiment, as shown in FIGS. 1, 3, and 4, the longitudinal direction, the width direction, and the front and back side directions are defined and described. However, this is defined for the sake of convenience in order to explain the relative relationship of the constituent elements, and does not limit the direction during the manufacture or use of the product implementing the present invention.

First, the outline | summary of the housing structure 10 of this embodiment and the portable electronic device 20 provided with the same is demonstrated.
As shown in FIG. 1, the housing structure 10 of the portable electronic device 20 according to the present embodiment is configured such that the display unit side body 100 and the operation unit side body 200 are connected to each other via an opening / closing hinge mechanism 30 so as to be freely opened and closed. Has been.
The display unit side body 100 includes a display case 110 in which the display device 112 is accommodated, and a hinge case 120 that is rotatably connected to the display case 110 via a rotary hinge mechanism 130. Yes.
The rotation shaft 132 of the rotary hinge mechanism 130 extends in a direction intersecting with the open / close shaft 32 of the open / close hinge mechanism 30.
As shown in FIGS. 3 to 5, the display housing 110 includes a plurality of frame members (a front display housing 140, a rear display housing 150, and an interior rear frame 170) that are arranged to face each other and accommodate the display device 112. It is configured to include.
As shown in FIG. 6, the plurality of frame members (the front display housing 140, the rear display housing 150, and the interior rear frame 170) are each coupled to the rotary hinge mechanism 130.

  A mobile phone is exemplified as the portable electronic device 20. A portable electronic device 20 of this embodiment shown in FIG. 1 is a so-called biaxial hinge type mobile phone. The display casing 110 and the hinge casing 120 are folded and opened and closed together with the operation unit side casing 200. Further, the display housing 110 is twisted and rotated with respect to the hinge housing 120. As a result, the display housing 110 has a biaxial rotation degree of freedom with respect to the operation unit side housing 200 by the opening / closing shaft 32 extending in the width direction and the rotating shaft 132 extending in the longitudinal direction.

  The open / close shaft 32 of the open / close hinge mechanism 30 rotatably connects the distal end of the operation unit side body 200 and the hinge housing 120 at the base end of the display unit side body 100 to each other. Here, the maximum rotation angle (stroke) of the opening / closing shaft 32 is not particularly limited, but may be, for example, 120 degrees to 180 degrees. In the present invention, rotation and rotation are not distinguished. That is, the case where the stroke of the hinge is less than 360 degrees is also expressed as rotation.

  FIG. 1 shows an open state in which the display unit side body 100 and the operation unit side body 200 do not overlap each other due to the rotation of the opening / closing hinge mechanism 30. In the open state, the main display (main device 116) of the display housing 110 faces the front side in the same manner as the operation key group 210 of the operation unit side body 200. This state may be referred to as a table state.

In the portable electronic device 20 in the open state, the display device 110 is twisted and rotated about the rotation shaft 132 of the rotary hinge mechanism 130, so that the main device 116 and the operation key group 210 face each other. This state may be referred to as a back state.
By folding the display housing 110 in the back state around the open / close hinge mechanism 30, the portable electronic device 20 can be folded while the main device 116 is exposed to the outside as shown in FIG. .

  The opening / closing shaft 32 extends in the width direction of the portable electronic device 20. That is, the display unit side body 100 including the display case 110 and the hinge case 120 is folded in the longitudinal direction with respect to the operation unit side body 200 around the opening / closing axis 32.

  Then, at the moment when the user opens the operation unit side body 200 and the display unit side body 100 to each other and the housing structure 10 reaches the open state, the rotation of the opening / closing shaft 32 of the opening / closing hinge mechanism 30 is restricted, The inertial force of the hand is applied to the display housing 110 as a striking force. Hereinafter, an external force applied to the display housing 110 at the moment when the housing structure 10 reaches the open state may be referred to as a reverse folding force.

  The display unit side body 100 is further divided into a display case 110 and a hinge case 120, and the display case 110 and the hinge case 120 are connected by a rotary hinge mechanism 130 whose longitudinal direction is a rotation axis 132. Yes. When both sides of the display casing 110 in the width direction are gripped by hand and are rotated by torque (lateral rotation) with respect to the hinge casing 120, a torsional force is applied to the display casing 110.

  In the housing structure 10 of the present embodiment, a plurality of frame members that house the display device 112 are individually connected to the rotary hinge mechanism 130, so that a reverse folding force or a twisting force is applied to the display housing 110. Even when loaded, the display device 112 is not deformed or damaged.

  In the housing structure 10 of the present embodiment, that the plurality of frame members accommodate the display device 112 means that a gap for accommodating the display device 112 is formed between the plurality of frame members. To do. Further, the state in which the display device 112 is accommodated in the gap portion includes a state in which the entire display device 112 is accommodated in the gap portion and a part of the display device 112 exposed to the outside from the gap portion. Including

  The frame member is a structural member that constitutes the display housing 110. The frame member of the present embodiment includes a front display housing 140, a rear display housing 150, and an interior rear frame 170 that is incorporated in the display housing 110 and sandwiches the display device 112 with the front display housing 140. And. The front display housing 140, the rear display housing 150, and the interior rear frame 170 are all connected to the rotary hinge mechanism 130.

  Here, that the frame member is connected to the rotary hinge mechanism 130 means that one frame member is connected to the rotary hinge mechanism 130 without interposing another frame member. Specifically, it includes the case where the frame member and the rotary hinge mechanism 130 are directly engaged with each other, and the case where the frame member and the rotary hinge mechanism 130 are indirectly connected via another member.

  Further, the rotary hinge mechanism 130 of the present embodiment includes a rotary shaft 132, a holding plate 136 fixed to the distal end thereof, a fastener, and a spacer (not shown).

  As shown in FIG. 6, the front display housing 140, the rear display housing 150, and the interior rear frame 170 of the present embodiment are attached to the base end portion (downward in the drawing) of the display housing 110 by a male screw 134. Both are fastened to the holding plate 136 of the rotary hinge mechanism 130.

  In other words, the front display housing 140, the rear display housing 150, and the interior rear frame 170 are fastened to the rotary hinge mechanism 130 by a common fastener (male screw 134) provided in parallel with the rotary shaft 132. .

  As shown in FIGS. 3 and 4, the portable electronic device 20 includes a protective screen 148 (front display housing 140), a main device 116, an interior display frame 160, and a printed circuit board in order from the front side (main device 116 side). 180 (subdevice 118), an interior rear frame 170, and a rear display housing 150 are stacked.

  Accordingly, the rigid structure of the display housing 110 is a three-layer structure including the front display housing 140, the interior rear frame 170, and the rear display housing 150, and high rigidity can be obtained in the entire display housing 110. .

  The three-layer structure that forms the rigid main component of the display housing 110 is screwed to the rotary hinge mechanism 130 by a male screw 134. Therefore, the coupling rigidity between the display housing 110 and the rotary hinge mechanism 130 is strong, and a region having high rigidity is continuously formed from the base end portion of the display housing 110 to the hinge housing 120.

  Further, since the interior rear frame 170, which is one of the structural members, is sandwiched between the interior display frame 160 and the rear display housing 150, the distance between the interior display frame 160 and the rear display housing 150 is the housing. The reduction by the external force applied to the body structure 10 is suppressed. For this reason, mechanical destruction of the printed circuit board 180 and its mounted components is prevented.

  The tightening tool (the male screw 134) fastens the side surface of the display housing 110 and the rotary hinge mechanism 130. That is, the screwing direction of the male screw 134 is the in-plane direction of the display housing 110. More specifically, it is the longitudinal direction of the display housing 110. Therefore, compared with the case where the male screw 134 is screwed in the thickness direction of the display housing 110, the overall thickness of the housing structure 10 is reduced.

  As shown in FIGS. 3 to 6, the housing structure 10 of the present embodiment is a bathtub-shaped interior display that is incorporated in the display housing 110 and accommodates the display device 112 between the front display housing 140. A frame 160 is included. As shown in FIG. 6, the interior display frame 160 is separated from the rotary hinge mechanism 130.

  The interior display frame 160 is not fixed to the rotary hinge mechanism 130, and prevents the load stress generated in the interior display frame 160 from being transmitted to the display device 112 accommodated therein.

  As a result, the housing structure 10 of the present embodiment includes a frame member (a front display housing 140, a rear display housing 150, an interior rear frame 170) and a rotating hinge mechanism 130 that are sufficiently rigid. As a result, a load path is formed. Since the display device 112 and the interior display frame 160 are not positioned on the transmission path of the reverse folding force or torsional force, even when these loads are applied to the display housing 110, the display device 112 There is no deformation or damage. For this reason, even if the casing structure 10 and the display unit side casing 100 are thinned as a whole and the stress load environment due to the reverse folding force or torsional force becomes severe, the display device 112 can be suitably protected.

  Hereinafter, the housing structure 10 of this embodiment and the portable electronic device 20 including the same will be described in more detail.

  As shown in FIGS. 3 and 5, the display device 112 according to the present embodiment includes a main device 116 provided on the front display housing 140 side and a sub device 118 provided on the rear display housing 150 side. ,including. In general, a circular frame portion 117 is provided around the main device 116.

  The main device 116 and the sub device 118 are display devices such as a liquid crystal display element and an organic EL (Electro Luminescence) element, and may be the same type or different types. In general, the main device 116 has a larger number of pixels than the sub device 118, but in this embodiment, the magnitude relationship between the main device 116 and the sub device 118 is arbitrary.

  The main device 116 is accommodated in the front display housing 140 and the interior display frame 160, and the sub device 118 is sandwiched between the interior display frame 160 and the interior rear frame 170.

  More specifically, the main device 116 is sandwiched between the front display housing 140 and the interior rear frame 170. The main device 116 may be directly sandwiched between the front display housing 140 and the interior rear frame 170, or indirectly sandwiched between the front display housing 140 and the interior rear frame 170 via another member. May be.

  As shown in FIG. 4, the sub device 118 is provided on the front end side of the back side of a printed circuit board (PWB: Printed Wire Board) 180. The printed circuit board 180 is a drive circuit board for the main device 116. The printed circuit board 180 is mounted with electronic circuits for the main device 116 and the sub device 118 and various mounting components.

  The printed circuit board 180 mounted on the housing structure 10 and the main device 116 are connected by a flexible cable 182 (see FIGS. 4 and 6).

  Further, the interior rear frame 170 and the rear display housing 150 are optically opened at positions corresponding to the sub devices 118. As a result, the user can view the sub device 118 from the back side of the display unit side body 100 (the rear display case 150 side).

  The main device 116 of the present embodiment is sandwiched between the front display housing 140 and the interior rear frame 170 with the interior display frame 160 interposed as described above. In other words, sandwiching the display device 112 between the front display housing 140 and the interior rear frame 170 means that the display device 112 is supported in a non-contact manner on one or both of the front display housing 140 and the interior rear frame 170. Including the case.

  As shown in FIGS. 3 and 5, the interior display frame 160 has a substantially rectangular shape in plan view, and has a bathtub shape in which a concave portion 162 is formed on the front side. The material of the interior display frame 160 is not particularly limited, but high rigidity can be obtained by using a stainless alloy plate material. Therefore, the internal main device 116 is mechanically protected against the external folding force and torsional force of the front display housing 140 and the interior rear frame 170 and the external force such as the drop impact of the portable electronic device 20. .

  The main device 116 and the frame unit 117 may be bonded and fixed to the interior display frame 160 with a double-sided tape or the like, or may not be bonded. The main device 116 is sandwiched between the front display housing 140 and the interior rear frame 170 in a non-fixed manner.

FIG. 7A is an upper perspective view of the front display housing 140, and FIG. 7B is a lower perspective view thereof. 8A is an upper perspective view of the interior rear frame 170, and FIG. 8B is a lower perspective view thereof. 9A is an upper perspective view of the rear display housing 150, and FIG. 9B is a lower perspective view thereof.
7 to 9 corresponds to the distal end side of each member, and the upper right portion corresponds to the proximal end side of each member.

  The front display housing 140 has a substantially rectangular frame shape and is made of a resin material such as hard plastic. A plurality of receiving portions 142 and 143 are formed so as to protrude along the longitudinal direction on the inner sides of the long sides facing the both sides in the width direction of the front display housing 140.

  As a result, as shown in FIGS. 3 and 4, a substantially rectangular bathtub-shaped interior display frame 160 is fitted into the front display housing 140 from the back side, so that the long side of the interior display frame 160 is connected to the receiving portion 143. It is hooked. When the interior display frame 160 is incorporated into the front display housing 140, the interior display frame 160 is restrained from the inner wall of the front display housing 140 and is held and fixed.

  That is, the interior display frame 160 is detachably held with respect to the front display housing 140. That is, the interior display frame 160 is held non-fixed to the front display housing 140 or the interior rear frame 170.

  The interior display frame 160 is separated from the frame members (the front display housing 140, the rear display housing 150, and the interior rear frame 170). Thereby, when the display housing 110 is deformed, it is possible to cause a relative shift between the frame member and the interior display frame 160. For this reason, it is relieved that the interior display frame 160 is deformed following the display housing 110, and an effect of reducing the load applied to the display device 112 accommodated in the interior display frame 160 can be obtained.

  The main device 116 accommodated in the interior display frame 160 can be easily removed from the display housing 110 by making the interior display frame 160 non-fixed to the front display housing 140 or the interior rear frame 170. It is.

  Furthermore, the drive circuit board (printed circuit board 180) of the display device 112 is sandwiched between the interior display frame 160 and the interior rear frame 170 in a non-fixed manner. Therefore, not only the main device 116 but also the sub device 118 (printed circuit board 180) can be easily detached from the frame member and the interior display frame 160.

  More specifically, the front display housing 140 includes a substantially rectangular frame 146 and a protective screen 148 attached to the frame 146.

As an example, the protective screen 148 may be a tempered glass plate.
The protective screen 148 is affixed to the outer surface of the front display housing 140. As a result, the front display housing 140 has a rectangular box shape opened on the back surface side, and the main device 116 and the interior display frame 160 can be housed inside and protected.

  The interior display frame 160 is not fixed to the front display housing 140 or the rear display housing 150. Therefore, the replacement work of the display device 112 (the main device 116 and the sub device 118) can be performed only by disassembling the front display housing 140 and the rear display housing 150. In other words, the main device 116 and the printed circuit board 180 can be taken out from the display housing 110 without destroying the adhesive bonding portion inside the display housing 110, and it is not necessary to remove the protective screen 148 from the frame body 146. Absent. Accordingly, when the protective screen 148 is made of tempered glass or a high-cost component such as an integrated contact sensor, the display device 112 can be replaced without removing the protective screen 148, which is advantageous in terms of work cost.

  Thereby, in addition to the failure / replacement of the display device 112, the display device 112 can be easily removed from the display housing 110 without peeling off the protective screen 148 even when the discarded / collected portable electronic device 20 is recycled. The benefits that can be taken out are enjoyed.

  As shown in FIGS. 4 and 6, a female nut 145 is embedded in the side surface 144 on the proximal end side of the front display housing 140.

The rotary hinge mechanism 130 includes a holding plate 136 that is fixed to the distal end side of the rotary shaft 132 and has higher bending rigidity than the interior rear frame 170.
The holding plate 136 is formed in a T shape at the tip of the rotation shaft 132 and rotates around the rotation shaft 132.
The holding plate 136 has a screw hole 137 through which the male screw 134 (tightening tool) passes, and constitutes screw fastening between the display housing 110 and the rotary hinge mechanism 130.

  As shown in FIG. 8, the interior rear frame 170 is formed by bending a metal plate.

The interior rear frame 170 includes a back plate portion 172 made of a metal plate material, and a folded portion 174 formed by bending at least one side in the width direction of the back plate portion 172.
Here, one side in the width direction means a side extending in the width direction. The folded portion 174 is sandwiched between the front display housing 140 and the rear display housing 150 and fastened to the rotary hinge mechanism 130.
In the housing structure 10, the folded portion 174 of the interior rear frame 170 is fastened to the holding plate 136.

  The rear display housing 150 shown in FIG. 9 has a substantially rectangular plate shape made of a resin material such as hard plastic. The rear display housing 150 is a member that constitutes the outermost shell of the display housing 110 together with the front display housing 140.

  The rear display housing 150 is formed with an upright surface 152 standing on one side of a base end portion of a substantially flat back plate portion 156. A through hole 151 for inserting the male screw 134 is formed in the vertical surface 152.

A screw hole 175 is provided in the folded portion 174 of the interior rear frame 170 corresponding to the fastener (male screw 134) with the rotary hinge mechanism 130.
As shown in FIG. 6, the folded portion 174 that is the side surface on the base end side of the interior rear frame 170 is sandwiched between the side surface 144 of the front display housing 140 and the holding plate 136 of the rotary hinge mechanism 130.
Further, an upright surface 152 (see FIG. 9) that is a side surface on the proximal end side of the rear display housing 150 overlaps with a further proximal end side of the holding plate 136. Accordingly, the side surface 144 of the front display housing 140, the folded portion 174 of the interior rear frame 170, the holding plate 136, and the elevation surface 152 of the rear display housing 150 are arranged in this order from the front surface side to the back surface side of the display housing 110. . These are screwed together by a male screw 134.

  On the front end side of the display housing 110, the front display housing 140, the rear display housing 150, and the interior rear frame 170 are fastened by a fastening tool (male screw 192) that is screwed in a direction perpendicular to the surface (thickness direction). (See FIGS. 3 and 4). That is, the interior rear frame 170, which is a separate component from the interior display frame 160, has both a base end corresponding to the end on the hinge housing 120 side and a front end corresponding to the end on the opposite side of the hinge housing 120. The body 140 and the rear display housing 150 are fastened together.

  The male screw 192 is shorter than the male screw 134. Thus, even if the male screw 192 is screwed in the thickness direction of the display housing 110, the display housing 110 is not hindered from being thinned. Here, the front end portion of the display housing 110 receives a main external force in a direction in which the front display housing 140 and the rear display housing 150 are separated from each other in a perpendicular direction due to a twisting force. Therefore, it is preferable to screw the male screw 192 in the direction perpendicular to the surface (the peeling direction).

  As shown in FIGS. 7 and 9, the front display housing 140 and the rear display housing 150 are fastened to the front end side of the display housing 110 with male screws 192, so that the front display housing 140 has a female nut boss. 147, a screw hole 154 is provided in the rear display housing 150. A through hole 177 to be fastened with the male screw 192 is provided on the front end side of the interior rear frame 170 (see FIG. 8).

  Thereby, the interior rear frame 170 is screwed to the front display housing 140 and the rear display housing 150 on both the base end side and the front end side.

The interior rear frame 170 of this embodiment will be further described with reference to FIGS.
The interior rear frame 170 is a structural member formed by stamping and bending a metal plate material such as a stainless alloy.

  A plurality of openings 1721 are formed in the back plate portion 172 of the interior rear frame 170 to escape the mounted components on the back surface side of the printed circuit board 180.

In the back plate portion 172, reinforcing step portions 176 extending in the length direction are formed by bending on both sides of the folded portion 174.
The bending direction of the reinforcing step 176 is the same side (front surface side) as the bending direction of the folded portion 174. The folded portion 174 and the reinforcing step portion 176 are connected by an L-shaped reinforcing metal fitting (L-shaped metal fitting 178: see FIG. 10).

The reinforcing stepped portion 176 is formed in a pair of strips along the long sides facing the both sides in the width direction of the back plate portion 172.
Further, since the reinforcing step portion 176 is bent so as to rise from the back plate portion 172 in a direction perpendicular to the back plate portion 172, the bending rigidity with respect to the reverse folding force of the interior rear frame 170 is dramatically improved. Further, a flat portion 1722 is formed in a strip shape along the long side of the back plate portion 172 on the outside of the reinforcing step portion 176.

The printed circuit board 180 is accommodated inside the pair of reinforcing step portions 176 in the interior rear frame 170 and is sandwiched between the back plate portion 172 and the interior display frame 160.
Then, the flat portions 1722 on both sides of the interior rear frame 170 are in contact with both outer sides in the width direction along the long side of the back surface of the corresponding interior display frame 160.

  Accordingly, even if the flat portion 1722 of the interior rear frame 170 applies a force that pushes the interior display frame 160 in a direction perpendicular to the interior display frame 160, no external force is applied to the center of the interior display frame 160. This is because the push-up force only pushes up both outer sides in the width direction of the interior display frame 160 and does not act on the center of the interior display frame 160.

  On the other hand, as shown in FIG. 5, the peripheral edge of the main device 116 is reinforced by the frame portion 117. For this reason, even if the pushing force from the interior rear frame 170 acts on the interior display frame 160, the frame portion 117 is only pressed against the front display housing 140, and the main device 116 is bent or damaged by the pushing force. There is nothing to do.

  Further, the reinforcing step 176 rises in an oblique direction with respect to the back plate 172. As a result, the interior rear frame 170 has high rigidity against not only reverse folding force but also external force applied obliquely to the back plate portion 172. For this reason, compared with the case where the reinforcement step part 176 is bent upright from the back plate part 172, the rigidity of the display housing 110 can be improved in a balanced manner against the reverse folding force and the twisting force.

As shown in FIG. 3, notches 149, 159, and 179 are provided at positions on both outer sides of the folded portion 174 on the back plate portion 172 of the front display housing 140, the rear display housing 150, and the interior rear frame 170. A pad member 190 is provided (not shown in FIG. 4).
The reinforcing step 176 is formed inside a notch 179 provided in the back plate 172.

  The pad member 190 is made of a resin material formed in a substantially block shape, and is a member that physically protects the corners of the display housing 110. As spaces for mounting the pad member 190 to the display housing 110, notches 149, 159, and 179 are formed.

  A notch 179 in the interior rear frame 170 is outside the folded portion 174 and the reinforcing step 176. That is, the notch 149 is formed in the back plate part 172 at a position away from the load path of the external force from the reinforcing step part 176 via the folded part 174 to the holding plate 136.

FIG. 10 is an enlarged view of a region surrounded by a circle X in FIG.
And as shown in FIG. 10, the reinforcement step part 176 and the folding | returning part 174 are connected with the L-shaped metal fitting 178. As shown in FIG. The L-shaped metal fitting 178 is formed by bending a metal plate that is thicker than the back plate portion 172, and is welded to the reinforcing step portion 176 and the folded portion 174.

As a result, the load path in the interior rear frame 170 is reinforced more firmly.
Here, as shown in FIG. 8, a cutout portion 1741 is formed in the center of the folded portion 174 of the interior rear frame 170. The notch 1741 serves as a path for inserting the wiring extending from the printed circuit board 180 toward the hinge casing 120 and the operation section side casing 200.
However, in the housing structure 10 of the present embodiment, the folded portion 174 is sandwiched between the thick L-shaped metal fitting 178 and the holding plate 136 that have higher bending rigidity than the folded portion 174. For this reason, the external force transmitted between the rotary hinge mechanism 130 and the display housing 110 does not substantially reach the notch portion 1741, and the holding plate 136, the L-shaped bracket 178, and It flows between the reinforcing step portions 176. Thereby, the housing structure 10 of the present embodiment can increase the rigidity of the interior rear frame 170 and the display housing 110 without impairing the handleability of the wiring extending from the printed circuit board 180.

  FIG. 11 is an upper perspective view showing an exploded state of the front display housing 140, the interior rear frame 170, and the rear display housing 150. FIG. For the sake of explanation, the interior rear frame 170 is shown with diagonal lines.

  As shown in the figure, on both sides in the width direction of the interior rear frame 170 and the rear display housing 150, hooking portions 173 and 153 standing up toward the front side in the thickness direction are formed alternately. Has been. And the front display housing | casing 140 is individually provided with the receiving part 142 engaged with the latching part 173 of the interior rear frame 170, and the receiving part 143 latched with the latching part 153 of the rear display housing | casing 150. FIG.

  The latching portions 173 and 153 and the receiving portions 142 and 143 are each composed of a protruding portion and a recessed portion that are engaged with each other. Which is the projection and the other is the recess is arbitrary.

  As in this embodiment, in the interior rear frame 170 and the rear display housing 150, at least some of the latching portions 173 and 153 are alternately arranged, so that the display housing 110 is stably assembled along the long side. It is done.

Hereinafter, a method for mounting the portable electronic device 20 will be briefly described.
First, the main device 116 is stored in the bathtub-shaped recess 162 of the interior display frame 160. At this time, the flexible cable 182 of the main device 116 is taken out of the interior display frame 160 from a notch 166 (see FIG. 4) provided on the side surface on the proximal end side of the interior display frame 160.

  An interior display frame 160 containing the main device 116 is incorporated inside the front display housing 140. Specifically, the outer periphery of the interior display frame 160 is restrained by the inner wall of the front display housing 140.

  The printed circuit board 180 is mounted on the back side (rear side) of the interior display frame 160. The flexible cable 182 is connected from the base end side to the printed circuit board 180.

  The interior rear frame 170 is incorporated inside the front display housing 140 in which the main device 116, the interior display frame 160, and the printed circuit board 180 are incorporated. At this time, the folded-back portion 174 of the interior rear frame 170 is in contact with the outer surface of the side surface 144 of the front display housing 140, and the female nut 145 of the front display housing 140 and the screw hole 175 of the interior rear frame 170 match.

  Also on the tip side, which is the opposite side of the hinge housing 120, the through hole 177 of the interior rear frame 170 is in contact with the female nut boss 147 of the front display housing 140 and matches each other.

  The holding plate 136 of the rotary hinge mechanism 130 is incorporated inside the side surface 144 of the front display housing 140 so as to contact the folded portion 174 of the interior rear frame 170, and the rear display housing 150 is fitted to the front display housing 140. .

  The vertical surface 152 on the base end side of the rear display housing 150 is positioned further on the base end side (outside) of the holding plate 136 of the rotary hinge mechanism 130. At this time, the pad member 190 is attached to the corner on the proximal end side of the display housing 110.

  A male screw 134 is screwed into the female nut 145 of the front display housing 140 from the outside of the vertical surface 152 of the rear display housing 150. As a result, the side surface 144 of the front display housing 140, the folded portion 174 of the interior rear frame 170, the holding plate 136 of the rotary hinge mechanism 130, and the vertical surface 152 of the rear display housing 150 are fastened together.

  The front display housing 140, the interior rear frame 170, and the rear display housing 150 are also fastened with male screws 192 on the front end side of the display housing 110. The male screw 192 is loosely inserted into the interior rear frame 170. As a result, the external force applied to the front display housing 140 and the rear display housing 150 is prevented from being transmitted to the interior rear frame 170.

  The present invention is not limited to the above-described embodiment, and includes various modifications and improvements as long as the object of the present invention is achieved.

  For example, instead of the above embodiment, the interior display frame 160 may be fastened with the front display housing 140, the interior rear frame 170, the rear display housing 150, and the male screw 134. Thereby, the rigidity of the entire display housing 110 can be further increased. In the case of this modification, since external force is transmitted to the interior display frame 160, the interior display frame 160 and the main device 116 are preferably not fixed. That is, the main device 116 is preferably sandwiched between the interior display frame 160 and the protective screen 148 in an unfixed manner.

  Further, the screwing direction of the male screw 134 that fastens the frame members at the base end portion of the display housing 110 may be the thickness direction of the display housing 110. Thereby, the screwing direction of the male screw 134 substantially coincides with the rotation direction of the holding plate 136. For this reason, the strength is improved against the twisting force applied to the display housing 110.

In addition, the interior rear frame 170 and the rear display housing 150 of the present embodiment can be separated, but instead of these, the two may be integrated with each other by insert molding or adhesive bonding.
Hereinafter, examples of the reference form will be added.
1.
A housing structure of a portable electronic device in which a display unit side body and an operation unit side body are connected to each other via an opening / closing hinge mechanism so as to be freely opened and closed,
The display unit side housing includes a display housing in which a display device is accommodated, and a hinge housing rotatably connected to the display housing via a rotating hinge mechanism,
The rotation axis of the rotary hinge mechanism extends in a direction intersecting with the open / close axis of the open / close hinge mechanism,
The display housing includes a plurality of frame members that are arranged to face each other and accommodate the display device,
The housing structure, wherein the plurality of frame members are respectively connected to the rotary hinge mechanism.
2.
The frame member includes a front display housing, a rear display housing, and an interior rear frame that is incorporated inside the display housing and sandwiches the display device between the front display housing,
The front display housing, the rear display housing, and the interior rear frame are all connected to the rotary hinge mechanism. The housing structure described in 1.
3.
The front display housing, the rear display housing, and the interior rear frame are fastened to the rotary hinge mechanism by a common fastener provided in parallel with the rotation shaft. The housing structure described in 1.
4).
The interior rear frame includes a back plate portion made of a metal plate material, and a folded portion formed by bending at least one side in the width direction of the back plate portion,
2. The folded portion is sandwiched between the front display housing and the rear display housing and fastened to the rotary hinge mechanism. The housing structure described in 1.
5).
The rotary hinge mechanism includes a holding plate that is fixed to the distal end side of the rotary shaft and has higher bending rigidity than the interior rear frame,
3. The folded portion of the interior rear frame is fastened to the holding plate. The housing structure described in 1.
6).
In the back plate portion, a reinforcing step portion extending in the length direction is formed by bending on both sides of the folded portion,
The bending direction of the reinforcing step is the same side as the bending direction of the folded portion, and
3. The folded portion and the reinforcing stepped portion are connected by an L-shaped reinforcing metal fitting. Or 5. The housing structure described in 1.
7).
5. The reinforcing step portion rises in an oblique direction with respect to the back plate portion. The housing structure described in 1.
8).
The back display portion of the front display housing, the rear display housing, and the interior rear frame is provided with a pad member provided with cutout portions at positions on both outer sides of the folded portion,
The reinforcing step is formed inside the notch provided in the back plate. Or 7. The housing structure described in 1.
9.
On both sides in the width direction of the interior rear frame and the rear display housing, hooking portions that are erected toward the front side in the thickness direction are formed alternately and arranged, respectively.
The front display housing individually includes a receiving portion that engages with the engaging portion of the interior rear frame and a receiving portion that engages with the engaging portion of the rear display housing. To 8. The housing structure according to any one of the above.
10.
A bathtub-shaped interior display frame that is incorporated in the display housing and accommodates the display device between the front display housing,
1. The interior display frame is separated from the rotary hinge mechanism. The housing structure according to any one of 9 to 9.
11.
9. The interior display frame is held non-fixed to the front display housing or the interior rear frame. The housing structure described in 1.
12
The front display housing includes a substantially rectangular frame and a protective screen attached to the frame. To 11. The housing structure according to any one of the above.
13.
A portable electronic device in which a display unit side body and an operation unit side body are connected to each other through an open / close hinge mechanism so as to be freely opened and closed,
The display unit side housing includes a display housing in which a display device is accommodated, and a hinge housing that is rotatably connected to the display housing via a rotating hinge mechanism.
The rotation axis of the rotary hinge mechanism extends in a direction intersecting with the open / close axis of the open / close hinge mechanism,
The display housing includes a plurality of frame members that are arranged to face each other and accommodate the display device,
The plurality of frame members are respectively connected to the rotary hinge mechanism.
14
The frame member includes a front display housing, a rear display housing, and an interior rear frame that is incorporated inside the display housing and houses the display device between the front display housing. ,
The front display housing, the rear display housing, and the interior rear frame are all connected to the rotary hinge mechanism,
12. The display device is sandwiched between the front display housing and the interior rear frame in a non-fixed manner. The portable electronic device described in 1.
15.
A bathtub-shaped interior display frame that is incorporated in the display housing and accommodates the display device between the front display housing,
The drive circuit board of the display device is sandwiched between the interior display frame and the interior rear frame in a non-fixed manner.14. The portable electronic device described in 1.
16.
The display device includes a main device provided on the front display housing side, and a sub device provided on the rear display housing side,
15. The main device is housed in the front display housing and the interior display frame, and the sub device is sandwiched between the interior display frame and the interior rear frame. The portable electronic device described in 1.

DESCRIPTION OF SYMBOLS 10 Case structure 20 Portable electronic device 30 Opening and closing hinge mechanism 32 Opening and closing axis 100 Display part side case 110 Display case 112 Display device 116 Main device 117 Frame part 118 Subdevice 120 Hinge case 130 Rotating hinge mechanism 132 Rotating axis 134 Male screw 136 Holding plate 137 Screw hole 140 Front display housing 142 Receiving portion 143 Receiving portion 144 Side surface 145 Female nut 146 Frame body 147 Female nut boss 148 Protective screen 149 Notch 150 Rear display housing 151 Through hole 152 Elevating surface 153 Hook Portion 154 screw hole 156 back plate portion 159 notch portion 160 interior display frame 162 recess 166 notch portion 170 interior rear frame 172 back plate portion 1721 opening 1722 flat portion 173 latching portion 174 folding portion 1741 notch portion 175 screw hole 176 reinforcing step 177 through hole 178 L-shaped brackets 179 notch 180 PCB 182 flexible cable 190 pad member 192 male thread 200 operation unit side body 210 operation keys

Claims (16)

A housing structure of a portable electronic device in which a display unit side body and an operation unit side body are connected to each other via an opening / closing hinge mechanism so as to be freely opened and closed,
The display unit side housing includes a display housing in which a display device is accommodated, and a hinge housing rotatably connected to the display housing via a rotating hinge mechanism,
The rotation axis of the rotary hinge mechanism extends in a direction intersecting with the open / close axis of the open / close hinge mechanism,
The display housing includes a plurality of frame members that are arranged to face each other and accommodate the display device,
The plurality of frame members are each coupled to the rotary hinge mechanism ,
The frame member includes a front display housing, a rear display housing, and an interior rear frame that is incorporated inside the display housing and sandwiches the display device between the front display housing,
The front display housing, the rear display housing, and the interior rear frame are all connected to the rotary hinge mechanism,
The front display housing, the rear display housing and the interior rear frame are fastened to the rotary hinge mechanism by a common fastener provided in parallel with the rotation shaft,
The case fastener is a male screw, and the screwing direction of the male screw is an in-plane direction of the display case . The interior rear frame includes a back plate portion made of a metal plate material, and a folded portion formed by bending at least one side in the width direction of the back plate portion,
The folded portion, the housing structure of claim 1 which is fastened before Symbol rotating hinge mechanism. The housing structure according to claim 2, wherein the folded portion is sandwiched between the front display housing and the rear display housing . The rotary hinge mechanism includes a holding plate that is fixed to the distal end side of the rotary shaft and has higher bending rigidity than the interior rear frame,
The housing structure according to claim 3 , wherein the folded portion of the interior rear frame is fastened to the holding plate. In the back plate portion, a reinforcing step portion extending in the length direction is formed by bending on both sides of the folded portion,
The bending direction of the reinforcing step is the same side as the bending direction of the folded portion, and
The housing structure according to claim 3 or 4 , wherein the folded portion and the reinforcing stepped portion are connected by an L-shaped reinforcing metal fitting. The housing structure according to claim 5 , wherein the reinforcing step portion rises in an oblique direction with respect to the back plate portion. The back display portion of the front display housing, the rear display housing, and the interior rear frame is provided with a pad member provided with cutout portions at positions on both outer sides of the folded portion,
The casing structure according to claim 5 or 6 , wherein the reinforcing step portion is formed inside the notch portion provided in the back plate portion. On both sides in the width direction of the interior rear frame and the rear display housing, hooking portions that are erected toward the front side in the thickness direction are formed alternately and arranged, respectively.
The front display housing, a receiving portion for engaging the engagement portion of the interior rear frame, said a receiving portion for engaging with the hook portion of the rear display housing, from claim 1, further comprising separately 7 The housing structure according to any one of the above. A bathtub-shaped interior display frame that is incorporated in the display housing and accommodates the display device between the front display housing,
The housing structure according to claim 1, wherein the interior display frame is separated from the rotary hinge mechanism. The housing structure according to claim 9 , wherein the interior display frame is held non-fixed to the front display housing or the interior rear frame. 11. The housing structure according to claim 1, wherein the front display housing includes a substantially rectangular frame and a protective screen attached to the frame. A portable electronic device in which a display unit side body and an operation unit side body are connected to each other through an open / close hinge mechanism so as to be freely opened and closed,
The display unit side housing includes a display housing in which a display device is accommodated, and a hinge housing that is rotatably connected to the display housing via a rotating hinge mechanism.
The rotation axis of the rotary hinge mechanism extends in a direction intersecting with the open / close axis of the open / close hinge mechanism,
The display housing includes a plurality of frame members that are arranged to face each other and accommodate the display device,
The plurality of frame members are each coupled to the rotary hinge mechanism ,
The frame member includes a front display housing, a rear display housing, and an interior rear frame that is incorporated inside the display housing and houses the display device between the front display housing. ,
The front display housing, the rear display housing, and the interior rear frame are all connected to the rotary hinge mechanism,
The display device is sandwiched between the front display housing and the interior rear frame in a non-fixed manner;
The front display housing, the rear display housing and the interior rear frame are fastened to the rotary hinge mechanism by a common fastener provided in parallel with the rotation shaft,
The portable electronic device according to claim 1, wherein the fastener is a male screw, and a screwing direction of the male screw is an in-plane direction of the display housing . The interior rear frame includes a back plate portion made of a metal plate material, and a folded portion formed by bending at least one side in the width direction of the back plate portion,
The portable electronic device according to claim 12 , wherein the folded portion is fastened to the rotary hinge mechanism . The portable electronic device according to claim 13 , wherein the folded portion is sandwiched between the front display housing and the rear display housing . A bathtub-shaped interior display frame that is incorporated in the display housing and accommodates the display device between the front display housing,
The portable electronic device according to claim 14, wherein a drive circuit board of the display device is sandwiched between the interior display frame and the interior rear frame in a non-fixed manner. The display device includes a main device provided on the front display housing side, and a sub device provided on the rear display housing side,
The portable electronic device according to claim 15, wherein the main device is accommodated in the front display housing and the interior display frame, and the sub device is sandwiched between the interior display frame and the interior rear frame.

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