JP7079356B1 - Electronics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display control component in a place other than a display housing, and appropriately arrange a flexible substrate for connecting the display control component and a display. SOLUTION: In an electronic device 10, a first housing 11 and a second housing 12 rotate with rear end portions 11b and 12b as connecting edge portions. The third housing 13 is adjacent to the connecting edge portion, and the relative angle with the second housing 12 changes. The third housing 13 includes a display controller 20a and a branched flexible FPC 36 that connects the display controller 20a and the display 20 via a connecting edge portion. The branched display FPC 36 has an extra length portion 36a bent to absorb a change in the path length between the display controller 20a and the display 20 as the relative angle between the second housing 12 and the third housing 13 changes. .. The extra length portion 36a is arranged in the space 50 of the third housing 13. [Selection diagram] FIG. 4B

Description

The present invention relates to an electronic device in which a plurality of housings are connected.

In the notebook PC, the main body housing and the display housing are configured to be rotatable via hinges provided at the respective connecting edges. The display housing of the notebook PC is provided with a display and a frame surrounding the display. The display control component of the display is generally provided in a frame body as in Patent Document 1.

Patent Document 2 discloses a configuration including a first housing equipped with a keyboard device and a second housing equipped with a display, and a third housing further equipped with a battery device. Both the first housing and the second housing are rotatably connected to the third housing. That is, the third housing substantially functions as a hinge block between the first housing and the second housing.

Japanese Unexamined Patent Publication No. 2001-075492 Japanese Unexamined Patent Publication No. 2012-173878

Since the display control unit of the display and the display are connected by many signal lines, a flexible substrate may be used.

By the way, in a notebook PC, the frame body is becoming narrower due to the so-called larger screen and narrower screen, and it becomes difficult to store the display control component in the frame body as in Patent Document 1, and the display control unit is displayed. It will be considered to install it in a place other than the housing. However, as described above, a flexible substrate may be used for connecting the display control unit and the display, and the flexible substrate is also bent as the display housing rotates. Although the flexible substrate is flexible, it is necessary to provide an appropriate arrangement route in order to sufficiently cope with a large number of bendings.

It may also be considered to arrange the display control component in the third housing in Patent Document 2. However, since the path length between the display control component and the display changes with the change in the relative angle between the second housing and the third housing, the flexible substrate has an extra length for absorbing the change. Although it is desirable to provide it, in the configuration described in Patent Document 2, the battery device is arranged in the third housing, and there is no space to spare.

The present invention has been made in consideration of the above-mentioned problems of the prior art, and the display control unit is provided in a place other than the display housing, and the flexible substrate connecting the display control unit and the display is appropriately arranged. The purpose is to provide electronic devices that can be used.

In order to solve the above-mentioned problems and achieve the object, in the electronic device according to the aspect of the present invention, the first housing equipped with the keyboard device and the second housing equipped with the display rotate at each connecting edge portion. A second electronic device that is movably connected and is adjacent to the connecting edge portion, and the relative angle between the first housing and the second housing changes due to the rotational movement between the first housing and the second housing. A third housing, a display control component provided in the third housing and controlling the display of the display, and a first flexible substrate for connecting the display control component and the display via the connecting edge portion. The first flexible substrate is bent in order to absorb a change in the path length between the display control component and the display as the relative angle between the second housing and the third housing changes. The extra length portion is provided, and the extra length portion is arranged in the third housing.

In such an electronic device, the disposable control component is arranged in the third housing, and an appropriately wide space for arranging the extra length portion of the first flexible board is provided in the third housing, and the flexible board is provided. Can be placed properly.

The third housing may be box-shaped and may be thicker than the first housing and the second housing. As a result, the space for arranging the extra length portion can be further increased.

The first housing and the second housing are relative to each other between a 0-degree posture arranged so as to overlap each other in the plane direction and a predetermined angle posture exceeding a 90-degree posture in which the plane directions are orthogonal to each other. The second hinge has a first hinge that is rotatably connected to the third hinge, and a second hinge that rotatably connects the third housing to the first housing. The center of the second hinge axis, which is the rotation axis, is anterior to the center of the first hinge axis, which is the rotation axis of the first hinge, in the front-rear direction of the first housing, and is the first housing. It may be in a position that is downward in the vertical direction of the body. As a result, the second hinge is located at a position farther than the space for arranging the extra length portion, and the space can be further increased.

The third housing rotates about the second hinge axis in conjunction with the rotational operation of the first housing and the second housing, and the first housing and the second housing The amount of change in angle between the second housing and the third housing may be smaller than the amount of change in angle due to rotation with. As a result, it is possible to suppress the amount of change in the angle at which the first flexible substrate bends and extend the service life.

A plurality of the first flexible substrates may be provided along the connecting edge portion. In such an electronic device, a long display control component is housed in a third housing, and a plurality of first flexible boards can be easily connected.

The first housing may be provided with a printed circuit board, and may be provided with a second flexible board that connects the display control component and the printed circuit board via the connecting edge portion. In this way, the display control component arranged in the third housing and the printed circuit board of the first housing can be connected.

The third housing is provided with an electric component, includes a cable for connecting the electric component and the electric component control unit in the first housing via the connecting edge portion, and the cable is the first. It may be arranged in a path passing through the rotation center between the housing and the third housing. As a result, bending of the cable is suppressed.

According to the above aspect of the present invention, the display display control unit can be provided in a place other than the display housing, and the flexible substrate connecting the display control unit and the display can be appropriately arranged.

FIG. 1 is a perspective view of an electronic device according to an embodiment. FIG. 2 is a perspective view showing a state in which the first housing and the second housing are closed and in a 0-degree posture. FIG. 3A is an enlarged schematic side view of the connecting portion of each housing in the 0-degree posture and the peripheral portion thereof. FIG. 3B is an enlarged schematic side view of the connecting portion and the peripheral portion of each housing in the 135 degree posture. FIG. 3C is a schematic side view of a connecting portion of each housing in a 180-degree posture and an enlarged peripheral portion thereof. FIG. 4A is a schematic side sectional view of a connecting portion of each housing in a 0-degree posture and an enlarged peripheral portion thereof. FIG. 4B is a schematic side sectional view of a connecting portion of each housing in a 135-degree posture and an enlarged peripheral portion thereof. FIG. 4C is a schematic side sectional view of a connecting portion of each housing in a 180-degree posture and an enlarged peripheral portion thereof. FIG. 5 is a perspective view of the connecting portion of each housing in the 0-degree posture and the peripheral portion thereof as viewed from below. FIG. 6 is an exploded perspective view of the third housing. FIG. 7 is a block diagram of an electric component of an electronic device. FIG. 8 is a bottom view of the first housing in a state where the cover member constituting the bottom surface side is removed.

Hereinafter, embodiments of the electronic device according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

FIG. 1 is a perspective view of an electronic device 10 according to an embodiment. As shown in FIG. 1, the electronic device 10 includes a first housing 11, a second housing 12, and a third housing 13. The second housing 12 and the third housing 13 are respectively rotatably connected to the first housing 11. In the electronic device 10, the first housing 11 and the second housing 12 form the appearance of a general clamshell notebook PC, and the third housing 13 constitutes a device housing / stand of the notebook PC. Functions as.

FIG. 2 is a perspective view showing a state in which the first housing 11 and the second housing 12 are closed and in a 0-degree posture. Hereinafter, unless otherwise specified, the electronic device 10 will be described with reference to the depth direction of each of the housings 11 to 13 in the 0 degree posture shown in FIG. 2, the width direction as left and right, and the thickness direction as up and down. .. These directions are for convenience of explanation, and the actual direction changes depending on the posture when the electronic device 10 is used or stored, or also changes depending on the viewing direction.

First, the overall configuration of each housing 11 to 13 will be described.

3A, 3B, and 3C are schematic side views of the connecting portions and their peripheral portions of the housings 11 to 13 in the 0-degree posture, the 135-degree posture, and the 180-degree posture, respectively.

The first housing 11 and the second housing 12 have a 0-degree posture (see FIGS. 2 and 3A) arranged so as to overlap each other in the plane direction, and exceed a 90-degree posture in which the plane directions are orthogonal to each other. , It is relatively rotatable up to a 180-degree posture (see FIG. 3C) arranged in a flat plate shape side by side in a direction perpendicular to the plane direction. The third housing 13 is pushed or pulled by the second housing 12 that rotates with respect to the first housing 11, so that the third housing 13 rotates relative to the first housing 11. 1 and 3B show a state in which the first housing 11 and the second housing 12 are in a 135-degree posture. In this case, the distance between the second housing 12 and the third housing 13 is, for example, 95 degrees, and the distance between the first housing 11 and the third housing 13 is, for example, 130 degrees.

The first housing 11 is a thin box-shaped housing. Inside the first housing 11, a motherboard (printed circuit board) 17 (see FIG. 4A) on which a CPU and a memory are mounted, a battery device 46 (see FIG. 8), and the like are housed. The keyboard device 14 and the touch pad 16 are exposed on the surface 11a (upper surface when the posture is 0 degrees) of the first housing 11. The first housing 11 may have a touch panel type display installed on the surface 11a, and a software type keyboard device may be displayed on the touch panel type display.

The second housing 12 is a box-shaped housing that is thinner than the first housing 11. The display 20 is exposed on the surface 12a (lower surface when the posture is 0 degrees) of the second housing 12. The display 20 is, for example, a liquid crystal display or an organic EL display. The display 20 is surrounded by a frame-shaped bezel 21. Subdevices 22 such as a camera 22a, a microphone 22b, a ToF sensor 22c, and a lid sensor 22d are installed on a portion (upper bezel 21a) located on the upper side of the four sides of the bezel 21 in the angular posture shown in FIG. .. For example, four microphones 22b are provided at substantially equal intervals, and microphone holes are opened at the edge of the second housing 12. The lid sensor 22d is, for example, a hall sensor and reacts to a magnet at a corresponding position in the first housing 11. The display 20 is a touch panel type. The bezel 21 may also be used as a cover glass that covers the surface 12a of the second housing 12.

The third housing 13 is a box-shaped housing that is thicker than the housings 11 and 12 and has short dimensions in the front-rear direction. The plate thickness of the third housing 13 is substantially the same as, for example, the total plate thickness of the housings 11 and 12 (see FIG. 3A). The third housing 13 is in a posture that protrudes rearward from the rear end portions 11b, 12b of the housings 11, 12 when the posture is 0 degrees. The third housing 13 mainly has two functions. The first function is a function as a device accommodating unit for accommodating a display controller 20a (display control component, see FIG. 4A) that controls the display of the display 20, a speaker module 23, and the like. The electrical components housed in the third housing 13 will be further described later. The second function is a function as a stand when the second housing 12 is opened from the first housing 11 and the electronic device 10 is used.

Next, a specific configuration of the connecting portion of each housing 11 to 13 will be described.

4A, 4B, and 4C are schematic side sectional views of the connecting portions and their peripheral portions of the housings 11 to 13 in the 0-degree posture, the 135-degree posture, and the 180-degree posture, respectively. .. FIG. 5 is a perspective view of the connecting portion of each of the housings 11 to 13 in the 0-degree posture and the peripheral portion thereof as viewed from below, and the first housing with the cover member constituting the lower surface of the first housing 11 removed. The internal structure of the body 11 is schematically illustrated.

As shown in FIGS. 4A to 5, in the first housing 11 and the second housing 12, the rear end portions (connecting edge portions) 11b and 12b of each other rotate relative to each other using the first hinge 24. It is connected as possible. In the first housing 11 and the third housing 13, the rear end portion 11b and the front end portion 13a of each other are relatively rotatably connected to each other by using the second hinge 25. The second housing 12 and the third housing 13 are not directly connected by a hinge, but wiring, a traction member 26, and the like extend between them.

As shown in FIGS. 4A to 5, the first hinge 24 has a first hinge shaft 24a, a first bracket 24b, and a torque mechanism portion 24c. The first hinges 24 of the present embodiment are installed in pairs on the left and right, and have a symmetrical structure with each other.

The first hinge shaft 24a is a metal shaft that serves as a rotation shaft between the housings 11 and 12. The first bracket 24b is a metal plate for attaching the first hinge 24 to the first housing 11, and is fixed to the first housing 11. The torque mechanism unit 24c is a mechanism that applies a predetermined rotational torque to the rotation between the housings 11 and 12 by the first hinge 24.

As shown in FIGS. 4A-5, the second hinge 25 has a second hinge shaft 25a and a second bracket 25b. The second hinge 25 is installed in pairs on the left and right, and has a symmetrical structure to each other.

The second hinge shaft 25a is a metal shaft that serves as a rotation shaft between the housings 11 and 13. The second bracket 25b is a metal plate for attaching the second hinge 25 to the first housing 11, and is fixed to the first housing 11.

In the second hinge 25, the second hinge shaft 25a and the second bracket 25b are integrally formed. One end of the second hinge shaft 25a is inserted into the bearing 13b of the third housing 13 so as to be relatively rotatable (see FIG. 5). The other end of the second hinge shaft 25a is integrated with the second bracket 25b.

Like the first hinge 24, the second hinge 25 is an intentional torque mechanism portion for generating rotational torque in rotation between the housings 11 and 13, that is, for mechanical or structural torque generation. It does not have a mechanism. Therefore, the second hinge shaft 25a and the bearing 13b of the third housing 13 rotate relative to each other in a state where there is substantially no rotational torque. Therefore, as is clear from FIG. 5, the structure of the second hinge 25 is simplified and downsized as compared with the first hinge 24 having the torque mechanism portion 24c.

However, when the second housing 12 is opened and the traction member 26 bends as described later (see FIGS. 4B and 4C), the third housing 13 may cause rattling only by this bending amount. Therefore, when the electronic device 10 is lifted with the second housing 12 opened to a certain extent or more, the third housing 13 moves by the amount of rattling. In this regard, in an actual product, a rotational torque due to sliding resistance between the members can naturally occur between the second hinge shaft 25a and the bearing 13b. The rotational torque due to this sliding resistance is smaller than the torque generated by the torque mechanism portion 24c of the first hinge 24. However, there are also effects such as rotational torque due to this sliding resistance and resistance due to the wiring passed between the third housing 13 and the housings 11 and 12, and the third housing 13 impairs the product quality. It is suppressed that such free rattling occurs. Further, a lubricant such as damper grease may be applied to the outer peripheral surface of the second hinge shaft 25a to apply a minute rotational torque to the rotation of the second hinge shaft 25a. Then, the rattling of the third housing 13 can be further suppressed. Of course, the grease does not adversely affect the simplification and miniaturization of the structure of the second hinge 25.

As shown in FIG. 4A, the axis center of the second hinge shaft 25a is anterior to the axis center of the first hinge shaft 24a in the front-rear direction of the first housing 11, and the axis of the first housing 11 It is located at the lower position in the vertical direction.

By the way, as described above, the second hinge 25 does not have a torque mechanism portion. Therefore, the third housing 13 rotates relative to the first housing 11 without rotational torque and relative to the second housing 12 so as to rotate without rotational torque. Therefore, the electronic device 10 includes a traction member 26 and a lock portion 28 between the second housing 12 and the third housing 13.

As shown in FIGS. 4A to 4C, the traction member 26 is a sheet-shaped or wire-shaped member extending between the second housing 12 and the third housing 13. The traction member 26 of the present embodiment is a thin and flexible sheet-like member made of a metal such as stainless steel. The traction member 26 is a member that is substantially non-stretchable. The traction member 26 may be a member having elasticity. However, when the second housing 12 is rotated in the direction from the 135 degree posture to the 0 degree posture with respect to the first housing 11, such a traction member 26 has an angle (for example, a 40 degree posture). ), It is preferable that the state is fully extended. As a result, even with the towing member 26 having elasticity, the third housing 13 can be smoothly towed by the second housing 12. Further, the elastic traction member 26 is in a state of being fully extended at an angle larger than 0 degrees (for example, the above-mentioned 40-degree posture), so that the traction member 26 passes through 40 degrees and heads for 0 degrees. The contracting reaction force acts between the housings 12 and 13. Therefore, after passing 40 degrees, the rotation of the third housing 13 up to 0 degrees becomes smoother. Further, the effect of pulling the third housing 13 toward the second housing 12 when the towing member 26 is in the 0 degree posture is also obtained, and the posture of the third housing 13 is stabilized.

One end of the traction member 26 is inserted into the second housing 12 through a rearward opening formed in the rear end portion 12b of the second housing 12, and is fixed to, for example, the back cover member of the second housing 12. ing. The other end of the traction member 26 is inserted into the third housing 13 through the forward-facing opening 13d formed in the front end portion 13a of the third housing 13, and is fixed to, for example, the speaker module 23. The wiring from the display 20 to the display controller 20a and the traction member 26 pass through the opening 13d and extend between the housings 12 and 13. Further, the wiring from the display controller 20a and the speaker module 23 to the motherboard 17 also passes through the opening 13d and extends between the housings 11 and 13.

In the 0-degree posture shown in FIG. 4A, the traction member 26 is stretched between the housings 12 and 13 and is in a tension state without slack. In the 135 degree posture shown in FIG. 4B, the traction member 26 is in a loosened and bent state between the housings 12 and 13. In the 180-degree posture shown in FIG. 4C, the traction member 26 is bent between the housings 12 and 13 to the same extent as in the 135-degree posture, or is pulled slightly more than in the 135-degree posture, but to some extent. It becomes a bent state. As a result, the traction member 26 can pull the third housing 13 toward the second housing 12 when the housings 11 and 12 close from the 180-degree posture to the 0-degree posture.

Next, the electric components housed in the third housing 13 and the electric wires connecting these electric components to the first housing 11 and the second housing 12 will be described. FIG. 6 is an exploded perspective view of the third housing 13. FIG. 7 is a block diagram of the electrical component of the electronic device 10. As described above, the display controller 20a and the speaker module 23 are provided in the third housing 13.

As shown in FIG. 6, the third housing 13 further includes three antenna modules 30, an audio board 31, a touch panel board 32, and a camera board 33. The antenna module 30 includes a total of five antennas. The audio board 31 includes an audio jack.

The display controller 20a is a component that controls at least a part of the display 20. The display controller 20a is, for example, a timing controller for displaying the display 20. The graphics function unit, display memory, and the like necessary for display control may be provided on the motherboard 17 of the first housing 11, or may be provided on the display controller 20a. The display controller 20a is a long and thin component along the left-right direction.

The touch panel board 32 is a board that controls the touch panel provided on the display 20. In the electronic device 10, at least the display controller 20a and the touch panel substrate 32 are not arranged on the bezel 21 portion, so that the bezel 21 can be made thinner.

In the electronic device 10, the five antennas in the antenna module 30 are distributed in the left-right direction to suppress mutual radio wave interference, and a good communication environment can be obtained. When the antenna module 30 is provided in the third housing 13, the distance to the motherboard of the first housing 11 is shorter than in the case where the antenna module 30 is provided in the second housing 12, and the arrangement can be shortened. Further, another antenna may be provided in the first housing 11. The antenna provided in the first housing 11 is considerably separated from the antenna provided in the third housing 13, and radio wave interference can be further suppressed. The camera board 33 is a board that controls the camera 22a.

Further, in the electronic device 10, since the speaker module 23, the antenna module 30, and the like are provided not in the first housing 11 but in the third housing 13, there is a margin in the layout space of the first housing 11 and the battery. The size of the device 46 (see FIG. 8), the fan 49 (see FIG. 8), and the like can be increased.

As shown in FIG. 7, the first housing 11 and the third housing 13 are connected by the first wiring group 34, and the second housing 12 and the third housing 13 are connected by the second wiring group 35. It is connected. The first wiring group 34 passes between the rear end portion 11b of the first housing 11 and the front end portion 13a of the third housing 13. The second wiring group 35 passes between the rear end portion 12b of the second housing 12 and the front end portion 13a of the third housing 13. The second wiring group 35 is provided at a position where the traction member 26 does not interfere with each other. The first wiring group 34 and the second wiring group 35 are names for convenience, and the wirings constituting them are not actually "groups" but independent ones, and are arranged separately in the left-right direction, for example. ..

As shown in FIG. 6, the second wiring group 35 includes three branch display FPCs (first flexible substrates) 36, one second touch sensor FPC37, and one sensor FPC38.

The branch display FPC 36 connects the display controller 20a and the display 20, and is provided dispersedly in a portion near both ends in the left-right direction and a substantially central portion. As described above, by providing a plurality of branch display FPCs along the rear end portion 12b and the front end portion 13a, the display 20 can be displayed in a well-balanced manner at both ends and the center portion in the left-right direction. Further, as described above, the display controller 20a is a long component along the left-right direction, and three dispersed branch displays FPC36 can be easily connected.

FIG. 8 is a bottom view of the first housing 11 with the cover member constituting the bottom surface side removed. As shown in FIG. 8, in the first wiring group 34, one main display FPC (second flexible substrate) 40, one first touch sensor FPC 41, one camera FPC 42, and a plurality of cables. 43, 44, 45, 51 and the like are included. Reference numeral 46 in FIG. 8 is a battery device, reference numeral 48 is an SSD (Solid State Drive), and reference numeral 47 is an antenna unit. The antenna unit 47 conforms to, for example, a so-called 5G communication system.

The main display FPC 40 connects the motherboard 17 and the display controller 20a. The first touch sensor FPC 41 connects the motherboard 17 and the touch panel board 32. The first touch sensor FPC 41 may include, for example, the signal of the microphone 22b. The camera FPC 42 connects the motherboard 17 and the camera board 33. The camera FPC 42 may include, for example, a signal from the ToF sensor 22c or the lid sensor 22d. The main display FPC40, the first touch sensor FPC41, and the camera FPC42 are thin flexible substrates, and are arranged along the left-right direction so as not to substantially overlap each other.

The cable 43 is four cables arranged in a substantially central portion, and is, for example, a speaker cable or a mmWAVE antenna cable. The cable 44 is two cables arranged on the left side portion, for example, a P sensor coaxial cable or a MIMO antenna cable. The cable 45 is arranged on the left side portion, for example, an audio harness. The cable 51 is three cables arranged on the right side portion, and is, for example, a Wifi or MIMO antenna cable. These cables connect a predetermined electric component control unit of the first housing 11 to the antenna module 30, the speaker module 23, the audio board 31, and the like.

The axis C in FIG. 8 is an extension of the second hinge shaft 25a in the second hinge 25, in other words, the center of rotation between the first housing 11 and the third housing 13. Therefore, in FIG. 8, the axis C is the boundary between the first housing 11 and the third housing 13.

The cables 43, 44, 45, 51 are arranged in a path including the rotation center path portions 43a, 44a, 45a, and 51a passing through the axis C (see also FIGS. 4A to 4C). The rotation center path portions 43a, 44a, 45a, 51a have an appropriate length along the axis C. The cables 43, 44, 45, 51 are twisted to some extent at the rotation center path portions 43a, 44a, 45a, 51a with the rotation of the first housing 11 and the third housing 13, but are bent. However, the service life is extended.

Since the number of the first wiring group 34 is large to some extent, a width in the left-right direction is required for arrangement, but as described above, it is a rotation axis between the first housing 11 and the third housing 13. Since the two hinges 25 do not have a torque mechanism portion, they are small in size, and a path space for the first wiring group 34 is secured.

Returning to FIGS. 4A to 4C, the branch display FPC36 has an extra length portion 36a. The extra length portion 36a is a portion bent to absorb the change in the path length between the display controller 20a and the display 20 due to the change in the relative angle between the second housing 12 and the third housing 13. The extra length portion 36a is arranged in the space 50 in the front portion of the third housing 13. Space 50 is conceptually shown by a broken line in FIGS. 4A to 4C. The space 50 is not a fixed area, but may change slightly depending on the relative angle between the first housing 11 and the third housing 13.

In the 0 degree posture (see FIG. 4A), the extra length portion 36a is moderately long, and the plurality of bent portions are formed so as to be folded back in the space 50. In the 135 degree posture (see FIG. 4B), the extra length portion 36a is relatively short, and the bending portion in the space 50 is also reduced. In the 180-degree posture (see FIG. 4C), the extra length portion 36a is further shortened, but a certain length is secured and tension is not applied.

The third housing 13 is connected to the first housing 11 by a second hinge 25, but is connected to the second housing 12 only by a thin traction member 26, so that the space 50 is connected. Is easy to secure. Further, since the second hinge 25 does not have an intentional torque mechanism portion, it is small enough and a large space 50 can be secured. Further, since the thickness of the third housing 13 is thicker than that of the first housing 11 and the second housing 12, it is possible to secure a larger space 50. Furthermore, since the second hinge shaft 25a is located at a position forward and downward with respect to the first hinge shaft 24a and slightly separated from the space 50, the space 50 is secured. It's easy to do. As described above, in the electronic device 10, a large space 50 can be secured in the third housing 13 from a space margin, and an appropriately long extra length portion 36a can be appropriately stored. As a result, the branched display FPC36 can handle a large number of bendings.

The third housing 13 can easily accommodate the speaker module 23, particularly a large-volume component such as a woofer, together with the display controller 20a by utilizing the thickness larger than that of the other housings 11 and 12. As a result, the first housing 11 does not need to accommodate the speaker module 23 or the like, or at least does not require the installation space for thick parts such as a woofer, and can be made thinner by that amount. In particular, among speaker parts, it is difficult to make the woofer thinner, and it can be a bottleneck that determines the thickness of the first housing 11. Therefore, by mounting it on the third housing 13, the thickness of the first housing 11 can be reduced. It becomes easier to do. In addition, the second housing 12 does not require the display controller 20a, which was conventionally arranged on the back side of the display 20, and can be made thinner by that amount.

As described above, the third housing 13 rotates about the second hinge shaft 25a in conjunction with the rotational operation of the first housing 11 and the second housing 12. At this time, the amount of angle change between the second housing 12 and the third housing 13 is smaller than the amount of angle change due to the rotation of the first housing 11 and the second housing 12.

Specifically, when the relative angle between the first housing 11 and the second housing 12 is θ1 and the relative angle between the second housing 12 and the third housing 13 is θ2, the posture is 0 degrees (FIG. (See 3A), θ1 = 0 degrees and θ2 = 180 degrees. On the other hand, in the 135 degree posture (see FIG. 3B), θ1 = 135 degrees, so the amount of change in angle from the 0 degree posture is also 135 degrees. Further, in the 135 degree posture, θ2 = 95 degrees. Therefore, the amount of change in the angle of θ2 from the 0 degree posture is 180-95 = 85 degrees, which is smaller than the amount of change in the angle of θ1.

Similarly, in the 180-degree posture (see FIG. 3C), θ1 = 180 degrees, so the amount of change in angle from the 0-degree posture is also 180 degrees. Further, in the 180-degree posture, θ2 = 65 degrees. Therefore, the amount of change in the angle of θ2 from the 0-degree posture is 180-65 = 115 degrees, which is smaller than the amount of change in the angle of θ1.

Then, if the display controller 20a is arranged in the first housing 11, the dynamic bending angle change (that is, the amount of the angle change of θ1) of the branched display FPC 36 becomes considerably large, and there is a concern that the life may be shortened. On the other hand, in the present embodiment, since the display controller 20a is arranged in the third housing 13, the dynamic bending angle change of the branch display FPC36 is compared with the case where the display controller 20a is arranged in the one housing 12. That is, the amount of change in the angle of θ2) becomes moderately small, and the service life can be extended.

As described above, in the electronic device 10 according to the present embodiment, the bezel 21 of the second housing 12 can be made thinner by arranging the display controller 20a in the third housing 13, and the remainder of the branch display FPC 36 can be made thinner. An appropriately wide space 50 for arranging the long portion 36a can be provided in the third housing 13.

The present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be freely changed without departing from the gist of the present invention.

10 Electronic device 11 1st housing 12 2nd housing 13 3rd housing 11b, 12b Rear end (connecting edge)
17 Motherboard (printed circuit board)
20 Display 20a Display controller 21 Bezel 23 Speaker module 24 1st hinge 25 2nd hinge 30 Antenna module 34 1st wiring group 35 2nd wiring group 36 Branch display FPC (1st flexible board)
36a Extra length 40 Main display FPC (second flexible substrate)
43a, 44a, 45a, 51a Rotation center path portion 50 space

Claims (7)

An electronic device in which a first housing equipped with a keyboard device and a second housing equipped with a display are rotatably connected at each connecting edge portion.
A third housing that is adjacent to the connecting edge portion and whose relative angle to the second housing changes due to a rotational operation between the first housing and the second housing.
A display control component provided in the third housing and controlling the display of the display,
A first flexible substrate that connects the display control component and the display via the connecting edge portion,
Equipped with
The first flexible substrate has an extra length portion bent in order to absorb a change in the path length between the display control component and the display due to a change in the relative angle between the second housing and the third housing. Have,
An electronic device characterized in that the extra length portion is arranged in the third housing. In the electronic device according to claim 1,
An electronic device having a box shape and having a thickness thicker than that of the first housing and the second housing. The electronic device according to claim 1 or 2.
The first housing and the second housing are relative to each other between a 0-degree posture arranged so as to overlap each other in the plane direction and a predetermined angle posture exceeding a 90-degree posture in which the plane directions are orthogonal to each other. The first hinge, which is rotatably connected,
A second hinge that rotatably connects the third housing to the first housing,
Have,
The center of the second hinge axis, which is the axis of rotation of the second hinge, is anterior to the center of the first hinge axis, which is the axis of rotation of the first hinge, in the front-rear direction of the first housing. Moreover, the electronic device is characterized in that it is located at a position downward in the vertical direction of the first housing. In the electronic device according to claim 3,
The third housing rotates about the second hinge shaft in conjunction with the rotational movement between the first housing and the second housing.
An electronic device characterized in that the amount of angle change between the second housing and the third housing is smaller than the amount of angle change due to rotation between the first housing and the second housing. In the electronic device according to any one of claims 1 to 4.
The first flexible substrate is an electronic device characterized in that a plurality of the first flexible substrates are provided along the connecting edge portion. In the electronic device according to any one of claims 1 to 5.
A printed circuit board is provided in the first housing, and the printed circuit board is provided.
An electronic device comprising a second flexible board for connecting the display control component and the printed circuit board via the connecting edge portion. In the electronic device according to any one of claims 1 to 6.
An electric component is provided in the third housing, and the third housing is provided with an electric component.
A cable for connecting the electric component and the electric component control unit in the first housing via the connecting edge portion is provided.
The electronic device is characterized in that the cable is arranged in a path passing through a rotation center between the first housing and the third housing.

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