JP2015159613A - Portable device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable device in which reduction of the receiver sensitivity of an antenna is inhibited even in a state where first and second housings are overlapped.SOLUTION: A portable device includes: a first housing; and a second housing which is connected with the first housing in such a manner that the second housing may overlap with the first housing. The first housing includes: a first surface on which a display unit is mounted; a second surface facing the first surface; a first insulation part formed in a portion of the first surface excluding a portion on which the display unit is mounted, the first insulation part formed by an insulation member; and an antenna disposed between the first insulation part and the second surface. The second housing includes: a third surface; a fourth surface facing the third surface; and a second insulation part which is formed in a position facing the first insulation part in a state where the first housing overlaps therewith, the second insulation part being formed over the fourth surface passing through a space between the third surface and the fourth surface and formed by an insulation member.

Description

  The present invention relates to a portable device.

  2. Description of the Related Art A portable device including a first housing and a second housing coupled to the first housing so as to be superposed is known. An antenna may be stored in the second housing. The wall portion of the second casing surrounding the antenna is formed of an insulating material in order to suppress the influence of the antenna on the transmission and reception of radio waves.

JP 2002-232220 A Utility Model Registration No. 3027116 JP 2000-17466 A

  In the superimposed state, the antenna housed in the second housing faces the first housing via the wall portion of the second housing. Therefore, depending on the material of the first casing, the first casing may affect the reception sensitivity of the antenna in the superimposed state.

  An object of the present invention is to provide a portable device in which a reduction in antenna reception sensitivity is suppressed even in a state where the first and second casings overlap.

  The mobile device disclosed in the present specification is a mobile device including a first housing and a second housing connected to the first housing so as to be superposed, the first housing including a display unit. A first surface on which the display unit is mounted; a second surface facing the first surface; a first insulating portion made of an insulating member formed on a portion of the first surface other than the portion on which the display unit is mounted; An antenna disposed between the first insulating portion and the second surface, and the second housing includes a third surface, a fourth surface facing the third surface, and the first surface. Insulation formed at a position facing the first insulating portion in a state where one housing is overlapped, from the third surface to the fourth surface through the third surface and the fourth surface And a second insulating part made of a member.

  Even in a state where the first and second casings are overlapped with each other, it is possible to provide a portable device in which a reduction in antenna reception sensitivity is suppressed.

1A to 1C are explanatory diagrams of the notebook computer of this embodiment. FIG. 2 is an exploded perspective view of the housing. FIG. 3 is a perspective view of the notebook computer with the storage member removed. 4A and 4B are perspective views of the storage member. FIG. 5 is a cross-sectional view of the storage member. FIG. 6 is an exploded perspective view of the storage member. FIG. 7 is a partially enlarged view of the storage member in a state where the lock portion is assembled to the lower case. FIG. 8A is a perspective view of a notebook computer with the housing disassembled, and FIG. 8B is a partially enlarged view of FIG. 8A. FIG. 9 shows a state where the antenna and camera unit are removed from the case and cover of the housing. FIG. 10 is a perspective view of the notebook computer in the first superimposed state showing the positions of the antenna and the camera unit. FIG. 11 is a perspective view of the notebook computer in the second superimposed state showing the positions of the antenna and the camera unit. FIG. 12 is a cross-sectional view of the notebook computer in the second superimposed state. FIG. 13 is an explanatory diagram of a storage member that is a first modification. FIG. 14 is a partially enlarged view of the storage member of the first modified example in a state where the lock portion is assembled to the lower case. FIG. 15 is an explanatory diagram of a storage member that is a second modification. FIG. 16 is an exploded perspective view of a storage member according to a second modification.

  A notebook computer will be described as an example of a portable device. 1A to 1C are explanatory diagrams of the notebook computer 1 of this embodiment. The notebook computer 1 has housings 10 and 20. The housing 10 is an example of a second housing. The housing | casing 20 is an example of a 1st housing. The casings 10 and 20 are connected by a biaxial hinge H. The housing 10 has an upper surface 11, a bottom surface facing the upper surface 11, and side surfaces 13 and 15 smaller than the areas of the upper surface 11 and the bottom surface. The side surfaces 13 and 15 connect the upper surface 11 and the bottom surface. The upper surface 11 and the bottom surface of the housing 10 are examples of third and fourth surfaces, respectively. The side surface 13 is an example of a fifth surface. A keyboard K and a cover 30 for operating the notebook computer 1 are provided on the upper surface 11. The side surface 15 is provided with a plurality of ports and connectors. A housing for controlling the overall operation of the notebook computer 1 is housed in the housing 10. The housing 10 houses two detachable storage members B. The two storage members B are provided so as to sandwich the cover 30.

  The housing 20 includes a front surface 21, a rear surface 22 that faces the front surface 21, and side surfaces 23 and 25 that have areas smaller than the front surface 21 and the rear surface 22. The side surfaces 23 and 25 are surfaces that connect the front surface 21 and the back surface 22. The front surface 21 and the back surface 22 of the housing 20 are examples of a first surface and a second surface, respectively. A display unit U is provided on the front surface 21. The display unit U includes a display panel that can display an image and a touch panel that can be operated by touching. The touch panel may employ various types such as a resistive film type, a surface acoustic wave type, and an infrared type. Further, a capacitive touch panel that does not require a touch pen and uses a change in capacitance between the user's fingertip and the conductive film may be employed. Further, instead of the touch panel, an electromagnetic induction type pen tablet using an electronic pen may be employed.

  The biaxial hinge H couples the casings 10 and 20 so as to be rotatable around two different axis centers A1 and A2. The shaft centers A1 and A2 are orthogonal to each other. The axis A1 extends in parallel with the direction in which the upper surface 11 extends. The axis A2 extends in a direction intersecting the upper surface 11. That is, the axis A1 and the axis A2 intersect.

  FIG. 1A shows a first superimposed state in which the front surface 21 of the housing 20 overlaps the upper surface 11 of the housing 10. FIG. 1B shows an open state in which the housings 10 and 20 are opened. FIG. 1C shows a second superimposed state in which the back surface 22 of the housing 20 overlaps the upper surface 11 of the housing 10. The user turns the notebook computer 1 into the open state by rotating the housing 20 around the axis A1 from the first superimposed state. The user rotates the housing 20 around the axis A2 from the open state of FIG. 1B, so that the back surface 22 of the housing 20 and the upper surface 11 of the housing 10 face each other from the state of FIG. 1B. The user can rotate around the axis A <b> 1 so that the housing 20 overlaps the housing 10 in a state where the back surface 22 of the housing 20 and the upper surface 11 of the housing 10 face each other. As a result, the notebook computer 1 is in a second superimposed state in which the upper surface 11 of the housing 10 and the rear surface 22 of the housing 20 face each other.

  FIG. 2 is an exploded perspective view of the housing 10. The housing 10 includes cases 10F and 10R and a cover 30. Cases 10F and 10R are made of metal. The cover 30 is made of an insulating material, specifically, a synthetic resin, but is not limited thereto. For example, the cover 30 may be made of rubber. The cover 30 covers the capacitive touch sensor SN. When the user's finger touches the cover 30, the touch sensor SN disposed inside the cover 30 detects the position of the user's finger. The cover 30 is assembled to the case 10F. The upper surface 11 of the housing 10 is defined by the case 10 </ b> F and the cover 30. The bottom surface 12 of the housing 10 is defined by the case 10R.

  On the case 10R side, a motherboard M, a heat pipe HP that receives heat from the semiconductor chip CP mounted on the motherboard M, a radiator R connected to the heat pipe HP, and a fan F that cools the radiator R are arranged. The case 10R houses a touch pen P for operating the touch panel of the display unit U. Two storage members B are arranged in the case 10R. The two storage members B are stored in the housing 10 and sandwich the cover 30.

  Most of the housing 10 is defined by metal cases 10F and 10R. In general, the density of the metal is higher than the density of the insulating material, and the strength of the metal is higher than the strength of the insulating material. For this reason, when the casing is formed of a thin metal, the weight is reduced while ensuring the strength of the casing as compared with the case where the casing is formed of an insulating material. In this embodiment, most of the housing 10 is made of metal, so that the strength and weight reduction of the housing 10 are ensured.

  FIG. 3 is a perspective view of the notebook computer 1 with the storage member B removed. An insertion port 18 into which the storage member B can be inserted is formed on the side surface 13 of the housing 10. A lock part 19 for locking the storage member B is provided on the side surface 13 of the housing 10. By sliding the lock portion 19 in the longitudinal direction of the side surface 13 of the housing 10, the storage member B stored in the housing 10 is unlocked. The storage member B can be completely removed from the housing 10, but may not be completely removed from the housing 10 as long as it can be pulled out from the housing 10. The storage member B is an example of a storage member stored in the housing 10 so as to be drawable. The insertion port 18 is an example of an opening into which the storage member B can be inserted.

  The storage member B will be described. 4A and 4B are perspective views of the storage member B. FIG. FIG. 5 is a cross-sectional view of the storage member B. FIG. FIG. 6 is an exploded perspective view of the storage member B. FIG. FIG. 7 is a partially enlarged view of the storage member B in a state where the lock portion 70 is assembled to the lower case 40. The storage member B includes a lower case 40, an upper case 50, a lid 60, and a lock part 70. The lower case 40, the upper case 50, the lid 60, and the lock portion 70 are made of an insulating material, specifically, a synthetic resin. The lower case 40 and the upper case 50 are combined with each other to store the battery BT. The battery BT is made of metal. As shown in FIG. 5B, a recess 48 into which a finger is inserted when the user removes the storage member B by hand is formed on the front side of the lower case 40.

  As shown in FIG. 6, through holes 44 and 54 are formed in the lower case 40 and the upper case 50, respectively. A screw hole is formed in the lid 60. The screw N inserted into the through holes 44 and 54 is screwed into the screw hole of the lid 60. Accordingly, the upper case 50 is fixed on the lower case 40 and the lid 60 is fixed on the upper case 50.

  As shown in FIGS. 6 and 7, a projecting engagement portion 49 is formed on the front side surface of the lower case 40. When the storage member B is stored in the housing 10, the engaging portion 49 engages with the lock portion 19 of the housing 10, whereby the storage member B is locked from being removed from the housing 10. The lock portion 19 is an example of a lock portion that is detachably engaged with the storage member.

  As shown in FIGS. 6 and 7, a lock portion 70 is slidably held between the lower case 40 and the upper case 50. The lock part 70 includes an extension part 71, an operation part 72, an engagement part 73, and a pin part 75. The extending part 71 extends in a predetermined direction. The operation part 72 is provided at one end of the extension part 71 and exposed through a notch part 42 formed in the center of the front surface of the lower case 40. The engaging portion 73 has a protruding shape, is provided at the other end of the extending portion 71, and is exposed from a cutout portion 43 formed on the front side of the side surface of the lower case 40. The engaging portion 73 of the lock portion 70 engages with the housing 10 when the storage member B is stored in the housing 10. The pin portion 75 extends from the engaging portion 73 in parallel with the extending portion 71. The pin portion 75 is inserted into the coiled spring S.

  As shown in FIG. 7, the spring S urges the lock portion 70 assembled to the lower case 40 in the urging direction D. Thereby, when the storage member B is stored in the housing 10, the engagement between the engaging portion 73 of the lock portion 70 and the housing 10 is maintained, and the removal of the storage member B is locked. The lock unit 70 is an example of a lock unit that is detachably engaged with the first housing. The user slides the lock portion 19 of the housing 10 to release the lock between the housing 10 and the storage member B, and further slides the operation portion 72 of the lock portion 70 in a direction opposite to the biasing direction D of the spring S. As a result, the lock between the lock unit 70 and the housing 10 is released. Thereby, the storage member B is removed from the housing 10.

  As shown in FIGS. 1A to 1C and FIG. 2, the cover 60 is exposed in the storage member B stored in the housing 10. In other words, the lid 60 closes the insertion port 18 of the housing 10 when the storage member B is stored in the housing 10. The side surface 13 of the housing 10 is defined by a part of the housing 10, the cover 30, and the lid 60 of the storage member B. The lid 60 is an example of an exposed portion made of an insulating member that is exposed from the first housing when stored in the first housing.

  Next, the antenna housed in the housing 20 will be described. 8A is a perspective view of the notebook computer 1 with the housing 20 disassembled, and FIG. 8B is a partially enlarged view of FIG. 8A. The housing 20 includes a case 20F on the front side, a case 20R on the back side, and a cover 20R1. The case 20F defines a front surface 21. The case 20R and the cover 20R1 define a back surface 22. The case 20F and the cover 20R1 are made of an insulating material, specifically, a synthetic resin. The case 20F and the cover 20R1 are an example of a wall portion made of an insulating material. Note that at least one of the case 20F and the cover 20R1 may be made of rubber, for example. The case 20R is made of metal. The cover 20R1 is located on the upper part of the case 20R. The case 20F and the cover 20R1 define the side surface 23 of the housing 20. Inside the cover 20R1, antennas AT1 to AT4 and a camera unit CM are arranged.

  FIG. 9 shows a state where the antennas AT1 to AT4 and the camera unit CM are removed from the case 20R and the cover 20R1 of the housing 20. Ground portions AT11, AT21, and AT41 are provided below the antennas AT1, AT2, and AT4, respectively. The ground portions AT11, AT21, AT41 are conductively connected to a metal plate fixed to the back surface of the display unit U. Radiating portions AT13, AT23, and AT43 are formed above the antennas AT1, AT2, and AT4, respectively. The radiating portions AT13, AT23, and AT43 are not connected to the metal plate to which the ground portions AT11, AT21, and AT41 are connected. As shown in FIG. 8B, the radiation portions AT13, AT23, AT43 and the antenna AT2 of the antennas AT1, AT2, AT4 are surrounded by a synthetic resin case 20F and a cover 20R1.

  Therefore, each of the antennas AT1 to AT4 is an example of an antenna in which at least a part is housed in the second casing and surrounded by the wall portion. Generally, when a metal member is present near the antenna, the receiving sensitivity of the antenna is reduced. Since at least a part of the antennas AT1 to AT4 of the present embodiment is surrounded by the case 20F and the cover 20R1 made of synthetic resin, a reduction in reception sensitivity of the antennas AT1 to AT4 in the deployed state is suppressed.

  As described above, the density of the metal is higher than the density of the insulating material, and the strength of the metal is higher than the strength of the insulating material. For this reason, when the casing is formed of a thin metal, the weight is reduced while ensuring the strength of the casing as compared with the case where the casing is formed of an insulating material. In this embodiment, the case 20R which is a part of the housing 20 is made of metal, so that the strength and weight reduction of the housing 20 are ensured. Further, since the case 20F and the cover 20R1 which are a part of the housing 20 are made of an insulating material, a reduction in reception sensitivity of the antennas AT1 to AT4 is suppressed. As shown in FIG. 8A, the case 20F has an opening CMO that exposes the lens of the camera unit CM.

  FIG. 10 is a perspective view of the notebook computer 1 in the first superimposed state showing the positions of the antennas AT1 to AT4 and the camera unit CM. FIG. 10 shows the antennas AT1 to AT4 and the camera unit CM. In the first superimposed state, the antennas AT2 and AT4 face the lid 60 of the synthetic resin storage member B through the synthetic resin case 20F. In other words, in the first superimposed state, the antennas AT2 and AT4 do not face the metal battery BT and the case 10F through the case 20F.

  When the antennas AT2 and AT4 face the metal member through the case 20F, the reception sensitivity of the antennas AT2 and AT4 is reduced. However, actually, the antennas AT2 and AT4 do not oppose the metal battery BT and the case 10F. Therefore, even in the first superposition state, the reduction in reception sensitivity of the antennas AT2 and AT4 is suppressed. In the first superimposed state, the antenna AT3 faces the cover 30. As described above, the cover 30 is made of synthetic resin. Thereby, even in the first superimposed state, the antenna AT3 is suppressed from reducing the reception sensitivity. As described above, the antennas AT1 to AT3 are prevented from being reduced in reception sensitivity in the first superimposed state. In the first superimposed state, the opening CMO is covered with the housing 10, and the camera unit CM cannot be used.

  FIG. 11 is a perspective view of the notebook computer 1 in the second superimposed state showing the positions of the antennas AT1 to AT4 and the camera unit CM. FIG. 12 is a cross-sectional view of the notebook computer 1 in the second superimposed state. Even in the second superimposed state, the antennas AT1 to AT4 face the synthetic resin storage member B or the cover 30 via the synthetic resin cover 20R1. Therefore, the antennas AT1 to AT4 are prevented from being reduced in reception sensitivity in the second superimposed state. As described above, with respect to the antennas AT2 to AT4, reduction in reception sensitivity is suppressed in any state. In the second superimposed state, since the opening CMO faces the outside of the housing 10, the camera unit CM can be used.

  FIG. 13 is an explanatory diagram of a storage member Ba which is a first modification. The upper case 50 and the lid 60 are not shown for the storage member Ba. FIG. 14 is a partially enlarged view of the storage member Ba of the first modified example in a state where the lock portion 70a is assembled to the lower case 40a. The operation unit 80a is provided with two guide pins 87a protruding in the vertical direction. A plate-like connecting portion 76a parallel to the horizontal direction is formed at one end of the extending portion 71a of the lock portion 70a. Two guide grooves 77a that are slidably engaged with the guide pins 87a are formed in the connecting portion 76a. The guide groove 77a extends obliquely with respect to the biasing direction D of the spring Sa. When the user pushes the operation unit 80a in a direction D1 orthogonal to the biasing direction D of the spring Sa, the guide pin 87a of the operation unit 80a moves in the guide groove 77a. As a result, the lock portion 70a moves in the direction opposite to the biasing direction D of the spring Sa, and the lock between the housing 10 and the lock portion 70a is released.

  FIG. 15 is an explanatory diagram of a storage member Bb which is a second modification. FIG. 16 is an exploded perspective view of a storage member Bb which is a second modification. The operation unit 80b has two guide pins 87b that protrude in the horizontal direction and toward the front side of the storage member Bb. The upper case 50b and the lid 60b are formed with notches 52b and 62b for allowing the operating portion 80b to escape. A connecting portion 76b is formed at one end of the extending portion 71b of the lock portion 70b. Two guide grooves 77b that are slidably engaged with the guide pins 87b are formed in the connecting portion 76b. The guide groove 77b extends obliquely with respect to the vertical direction. The user pushes the operation unit 80b in the vertical downward direction D2 orthogonal to the biasing direction D of the spring Sb, whereby the guide pin 87b of the operation unit 80b moves in the guide groove 77b. Thereby, the lock part 70b moves in the direction opposite to the urging direction D of the spring Sb, and the lock between the housing 10 and the lock part 70b is released.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

  In the above embodiment, a notebook computer has been described as an example of a portable device, but the portable device may be other than that. For example, a mobile phone, a mobile TV, an electronic dictionary, a PDA, a game machine, a camera, a music player, a navigation device, and the like.

  In the said Example, although the storage member B holding the battery BT was demonstrated to the example, the storage member B is not limited to this. For example, the storage member B may be a tray that can hold at least one of a flash memory, a hard disk, and a storage medium.

  In the above embodiment, at least one of the antennas AT1 to AT4 may face both the cover 60 and the cover 30 of the storage member B via the case 20F in the first superimposed state.

DESCRIPTION OF SYMBOLS 1 Notebook computer 10, 20 Case 13 Side surface 18 Insertion slot 19 Lock part 20F, 20R Case 30R1 Cover 30 Cover 40 Lower case 50 Upper case 60 Lid 70 Lock part AT1-AT4 Antenna B Storage member U Display unit

Claims (1)

A portable device comprising a first housing and a second housing coupled to the first housing so as to be superposed,
The first housing is
A first surface on which a display unit is mounted;
A second surface facing the first surface;
A first insulating portion made of an insulating member formed in a portion other than a portion on which the display unit is mounted on the first surface;
An antenna disposed between the first insulating portion and the second surface;
The second housing is
The third side,
A fourth surface facing the third surface;
Formed from the third surface to the fourth surface through the third surface and the fourth surface at a position facing the first insulating portion with the first housing superimposed. And a second insulating part made of an insulating member.

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