JP4485601B1 - Mobile device - Google Patents

Abstract

An object of the present invention is to prevent erroneous detection of an open / closed state of a mobile terminal.
A portable terminal according to the present invention is a portable terminal including a first casing, a second casing, and a connecting portion that rotatably connects the first casing to the second casing. A magnet is provided in a convex portion formed in the connecting portion, and a concave portion is formed in the second housing at a position corresponding to the connecting portion in a closed state overlapping the first housing. A magnetic detection element for detecting an open state of the mobile terminal by detecting a magnetic change of the magnet is provided on the back surface of the concave portion, and the first casing and the second casing overlap each other. In this case, the convex portion and the concave portion are engaged with each other, and the magnet and the magnetic detection element are positioned to overlap each other in the thickness direction of the casing.
[Selection] Figure 2

Description

  The present invention relates to a foldable portable terminal.

  As a conventional example, in the mobile terminal disclosed in Patent Document 1, a vertical opening detector that detects an open / closed state of the mobile terminal when the mobile terminal is opened vertically from the folded state, and a horizontal side of the mobile terminal that is opened laterally from the folded state. An opening / closing detector for opening is disclosed.

JP 2005-216158 A

  However, in the conventional example, there is no detailed examination as to where the open / close detector (especially for lateral opening) is appropriate. Therefore, for example, the open / close detector may be erroneously detected due to rattling when the upper and lower casings of the mobile terminal are relatively opened and closed.

  The objective of this invention is providing the portable terminal which can prevent the misdetection of the opening / closing state of a portable terminal.

The present invention is a mobile terminal including a first housing, a second housing, and a connecting portion that rotatably connects the first housing and the second housing, and the connecting portion includes A magnet is provided in the formed convex portion, and in the second casing, a concave portion is formed at a position corresponding to the connecting portion in a closed state overlapping the first casing, and on the back surface of the concave portion A magnetic detecting element for detecting an open state of the mobile terminal by detecting a magnetic change of the magnet, and when the first casing and the second casing are in a closed state, Provided is a portable terminal that engages with the recess, and in which the magnet and the magnetic detection element overlap each other in the casing thickness direction.
According to the above configuration, erroneous detection of the open / closed state of the mobile terminal can be prevented.

In the portable terminal, the first rotation axis is an axis along the short direction of the casing, and the second rotation axis is an axis along the longitudinal direction of the casing, and the magnetic axis The open state of the mobile terminal detected by the detection element is that the second housing rotates around the second rotation axis relative to the first housing via the connecting portion. It is in a side-open state.
According to the above configuration, it is possible to prevent erroneous detection of the horizontally open state of the mobile terminal.

In the portable terminal, the magnet is located near the center of the first casing in the short direction, and the magnetic detection element is short in the short direction of the second casing facing the magnet in the thickness direction of the casing. Located near the center of.
According to the above configuration, when the magnetic detection element detects the laterally open state of the mobile phone 1, there is no backlash of the housing, and erroneous detection of the open / closed state of the mobile terminal can be prevented.

In the portable terminal, the first casing has one surface having an operation unit of the portable terminal and another surface opposite to the one surface in the thickness direction of the portable terminal. When the terminal is in a closed state, the terminal opens to the one surface of the operation portion, covers the opening to the opening formed in the convex portion, and the magnet to the outside of the connecting portion. An exterior sheet is provided to cover it.
According to the above configuration, it is possible to prevent erroneous detection of the open / closed state of the mobile terminal without impairing the appearance quality of the mobile terminal.

  The mobile terminal according to the present invention can prevent erroneous detection of the open / closed state of the mobile terminal.

(A) The figure which shows the closed state of the mobile telephone 1 (b) The figure which shows the 1st open state of the mobile telephone 1 (c) The figure which shows the 2nd open state of the mobile telephone 1 Partial enlarged view of the mobile phone 1 in the second open state The figure for demonstrating the shift | offset | difference of the upper housing | casing 2 and the lower housing | casing 3 in the closed state of the mobile telephone 1 The figure which shows the cross section of the IV-IV line shown in FIG. Exploded perspective view of connecting part 4 The figure which shows the holding | maintenance state of the opening / closing detection magnet 70 of the connection part 4. FIG. The figure which looked at the rotating shaft member 50 from the back side

  Embodiments of the present invention will be described below with reference to the drawings. Note that the X axis, the Y axis, and the Z axis shown in each figure are axes indicating orthogonal coordinates perpendicular to each other, and the same axis in each figure indicates the same direction.

  With reference to FIG. 1, the state of the mobile phone 1 of the present embodiment will be described. 1A shows a closed state of the mobile phone 1, FIG. 1B shows a first open state of the mobile phone 1, and FIG. 1C shows a second open state of the mobile phone 1. .

  As shown in FIG. 1, the cellular phone 1 according to the present embodiment is roughly configured to have a substantially box-shaped upper housing 2, a substantially box-shaped lower housing 3, an upper housing 2, and a lower housing 3. And a connecting portion 4 that connects the two to be openable and closable. The mobile phone 1 is connected so as to be openable and closable in the direction of the arrow A and in the direction of the arrow A perpendicular to the direction of the arrow A and in the direction of the arrow B about the axis b by the rotation of the connecting portion 4.

  At the time of carrying, as shown to Fig.1 (a), it uses in the superimposition state (closed state or closed state) with which the upper housing | casing 2 and the lower housing | casing 3 which comprise the mobile telephone 1 mutually overlapped. For example, when inputting characters, numbers, and telephone numbers during a call, as shown in FIG. 1 (b), the cellular phone 1 is closed, and the upper casing 2 is moved to the axis a ( It is used in a first open state (first open state or vertically open state) rotated in the direction of arrow A (or the first direction) about the first rotation axis). For example, when viewing a TV on a horizontally long screen, as shown in FIG. 1C, the mobile phone 1 is in the closed state, and the upper housing 2 is placed on the axis b (second rotation axis) with respect to the lower housing 3. ) In the second open state (second open state or side open state) rotated in the direction of arrow B (or the second direction, which is a direction orthogonal to the first direction). .

Next, the configuration of the mobile phone 1 of the present embodiment will be described with reference to FIG.
The upper housing 2 accommodates a receiver 5, a first display unit 7, and the like. A first display unit 7 is provided on the main surface 2 </ b> A side of the upper housing 2. Although not shown, various circuits for realizing the function of the mobile phone are mounted on the printed circuit board provided in the upper housing 2. In the present embodiment, the upper housing 2 is made of resin, but is not limited thereto.

  The lower housing 3 accommodates a transmitter (microphone) 13 and an operation unit 14. Although not shown, a circuit that realizes the function of a mobile phone is mounted on a printed circuit board provided in the lower housing 3. The main surface 3A of the lower housing 3 is provided with an operation unit 14 that is exposed when the mobile phone 1 is in the first and second open states. In the present embodiment, the lower housing 3 is made of resin, similar to the upper housing 2, but is not limited thereto.

  The microphone 13 is on the main surface 3A of the lower housing 3 and is covered with the upper housing 2 when the mobile phone 1 is closed, and when the mobile phone 1 is in the first open state or the second open state. It is provided so as to be exposed. During a call, the user's voice is transmitted to the communication partner.

  The operation unit 14 is disposed on the main surface 3 </ b> A of the lower housing 3. Numbers, letters and symbols are printed to enter phone numbers and letters. It consists of a plurality of operation buttons that can be used for receiving and ending calls, adjusting the volume output from the receiver 5, etc., switching to the manner mode, and selecting and confirming on the menu screen.

  The connecting portion 4 is provided with a first connecting portion 28 and a second connecting portion (second hinge) 29 and rotatably connects the upper housing 2 and the lower housing 3. Further, although not shown, a wiring member (cable) that electrically connects the printed circuit board of the upper housing 2 and the second printed circuit board of the lower housing 3 is passed through the connecting portion 4.

  The open / close detection magnet 70 and the magnetic detection element 80 will be described with reference to FIG. FIG. 2 is a partially enlarged view of the mobile phone 1 in the second open state. As shown in FIG. 2, a part of the connecting portion 4 forms a convex portion 72 that protrudes in the thickness direction of the housing from the main surface 3 </ b> A of the lower housing 3 provided with the operation portion 14. An opening / closing detection magnet 70 is provided in the convex portion of the connecting portion 4. Although details will be described later, a part of the convex portion 72 of the connecting portion 4 forms an inclined portion 42. The opening / closing detection magnet 70 is located near the center in the lateral direction of the casing (Y-axis direction in the figure).

  On the other hand, as shown in FIG. 2, the end of the main surface 2 </ b> A of the upper housing 2 provided with the first display unit 7 is protruded from the main surface 2 </ b> A of the upper housing 2 as a reference. A concave portion 71 having a concave shape is formed along the protruding shape of a part of the connecting portion 4 (the convex portion 72). Although details will be described later, when the cellular phone 1 is in the closed state (see FIG. 1A), the convex portion 72 engages with the concave portion 71 to suppress the backlash between the upper housing 2 and the lower housing 3. Further, the protrusion 73A, the protrusion 73B, and the protrusion 74 are formed so as to protrude inside the recess 71, and the rattling when the protrusion 72 and the recess 71 are engaged is further suppressed. The protrusion 73A, the protrusion 73B, and the protrusion 74 are made of a material (soft material) having a hardness lower than that of the housing, thereby preventing the surface of the convex portion 72 from being damaged or preventing the paint from peeling off.

  A magnetic detection element 80 is provided on the back surface of the recess 71 of the upper housing 2. When the mobile phone 1 is in the closed state (see FIG. 1A), the magnetic detection element 80 is positioned above the open / close detection magnet 70 and overlaps with the open / close detection magnet 70 in the casing thickness direction. 71 is provided. When the mobile phone 1 is in the closed state (see FIG. 1A), the magnetic detection element 80 is located at a position facing the open / close detection magnet 70, in other words, in the lateral direction of the casing (Y-axis direction in the figure). Located near the center.

  The magnetic detection element 80 detects the magnetic change of the open / close detection magnet 70, and thus the lateral opening angle θ1 when the user opens the upper housing 2 in the arrow B direction with respect to the lower housing 3 is within a predetermined range. In this case, the side-open state of the mobile phone 1 is detected. The magnetic detection element 80 is electrically connected to a printed circuit board provided in the upper housing 2. When the magnetic detection element 80 detects the laterally open state of the mobile phone 1, a signal is transmitted to the printed circuit board, and the mobile phone 1 operates the first display unit 7, for example.

  As described above, according to this embodiment, the configuration in which the opening / closing detection magnet 70 and the magnetic detection element 80 are arranged near the center in the lateral direction of the casing (in the Y-axis direction in the drawing), When the upper casing 2 is opened with respect to the casing 3 in the direction of arrow B, the magnetic detection element 80 has a predetermined lateral opening angle θ1 of the mobile phone 1 that is neither too large nor too small (not erroneously detected). The laterally open state of the mobile phone 1 is detected within the range angle. That is, the horizontal opening state of the mobile phone 1 is detected at an angle smaller than the angle at which the display unit can be seen by the user, and the screen is displayed in the horizontal direction. Depending on the performance of the magnetic detection element 80, the open / close detection magnet 70 and the magnetic detection element 80 do not necessarily have to be positioned near the center, and the horizontal detection state is set at an angle smaller than the angle at which the entire display unit can be seen by the user. Any position that can be detected is acceptable.

  In the present embodiment, as shown in FIG. 3, when the mobile phone 1 is in the closed state (see FIG. 1A), the convex portion 72 in which the open / close detection magnet 70 is provided is provided in the magnetic detection element 80. Engages with the recess 71 of the upper housing 2 provided on the back surface. Therefore, for example, even when a force F indicated by an arrow in FIG. 3 is applied to the upper casing 2, the upper casing 2 (in the figure) with respect to the lower casing 3 in the lateral direction of the casing (Y-axis direction in the figure). The angle θ2 representing the deviation of the broken line) is almost zero. Therefore, when the cellular phone 1 is in the closed state (see FIG. 1A), the rattling of the upper housing 2 and the lower housing 3 can be reduced by engaging the convex portion 72 with the concave portion 71. . At this time, the backlash of θ2 can be further reduced without damaging the surface of the protrusion 72 by the protrusions 73A and 73B provided to protrude from the inside of the recess 71. As shown in FIG. 2, when the protrusion 73A, the protrusion 73B, and the protrusion 74 are all disposed on the side opposite to the second rotation shaft from the center in the short direction of the upper housing 2, θ2 at the time of engagement is set. The play of the direction can be effectively suppressed.

4 is a cross-sectional view taken along line IV-IV shown in FIG. The reference symbol F in FIG. 4 indicates the force F shown in FIG. 4 indicates a straight line connecting the center position of the magnetic detection element 80 and the center position of the open / close detection magnet 70. As shown by the straight line M in FIG. 4, when the mobile phone 1 is in the closed state (see FIG. 1A), even if the force F indicated by the arrow in FIG. And the center position of the opening / closing detection magnet 70 substantially coincide with each other in the casing thickness direction (Z-axis direction in the figure). Therefore, the mobile phone 1 can suppress the backlash of the upper housing 2 and the lower housing 3 even when a force F is applied to the mobile phone 1 from the outside, so that the opening / closing detection magnet 70 and the magnetic detection element 80 Misalignment is unlikely to occur. According to this configuration, due to slight backlash of the upper housing 2 and the lower housing 3, the magnetic detection element 80 does not react to the magnetic force of the open / close detection magnet 70, and the mobile phone 1 is in a closed state. It is also possible to prevent the magnetic detection element 80 from erroneously detecting “horizontal open state” and displaying a horizontal screen. That is, it is possible to reduce wasteful power consumption by configuring the detection to be performed at an appropriate angle while preventing erroneous detection.
Note that the direction in which the force F is applied is not limited to the direction shown in FIG. 3, and even if the force F is applied from the direction shown in FIG. When the detection element 80 detects the laterally open state of the mobile phone 1, it is difficult to make a false detection.

  Next, the structure of the connection part 4 is demonstrated with reference to FIGS. The connecting portion 4 shown in FIG. 5 includes a connecting portion main body 40 and a connecting portion cover 41.

  5 includes an inclined portion 42 having an inclined surface 42A smoothly connected to the inclined surface 41A of the connecting portion cover 41 in the casing thickness direction (Z-axis direction in the drawing), and a second hinge. 29, and a housing portion 44 located below the inclined portion 42.

  The connecting portion cover 41 shown in FIG. 5 rotates along the lateral direction of the casing (the Y-axis direction in FIG. 5), the inclined surface 41A smoothly continuing to the inclined portion 42, and the inclined surface 41A. And a curved surface 41B that covers the diameter portion 51 from above along the shape of the diameter portion 51 of the shaft member 50. The configuration of the rotation shaft member 50 will be described later.

  As shown in FIG. 2, the inclined portion 42 has an inclined surface 42 </ b> A that smoothly continues with the inclined surface 41 </ b> A along the lateral direction of the casing (the Y-axis direction in the drawing). Therefore, the appearance quality of the connecting portion 4 is not impaired. In addition, as shown in FIG. 2, when the mobile phone 1 is in the laterally open state, the inclined portion 42 extends from the main surface 3 </ b> A of the lower housing 3 on which the operation unit 14 is provided in the housing thickness direction (Z in the drawing). Project in the axial direction). That is, the inclined portion 42 forms a part of the convex portion 72 of the connecting portion 4. In the present embodiment, the convex portion 72 is formed by the inclined portion 42, but it is not always necessary to form the inclined portion in the convex portion 72, and it may be formed in a step shape instead of the inclined portion.

  5 is located below the inclined portion 42 along the lateral direction of the casing (the Y-axis direction in the drawing). In order to avoid sink marks, the housing portion 44 is originally formed by removing the thick portion of the connecting portion 4. In addition, a magnet holding unit 45 is provided inside the storage unit 44, and the magnet holding unit 45 stores an opening / closing detection magnet 70 for detecting a lateral opening of the mobile phone 1. Of the side surfaces of the housing portion 44, the side surface on the main surface 3 </ b> A side of the lower housing 3 has an opening 44 </ b> A that is almost entirely open.

  Here, as shown in FIG. 5, the magnet holding part 45 in which the opening / closing detection magnet 70 for detecting the lateral opening is accommodated protrudes from the main surface 3 </ b> A of the lower housing 3 on which the operation part 14 is provided. It is located under the inclined part 42 to be. Further, as shown in FIG. 2, the opening / closing detection magnet 70 accommodated in the magnet holding portion 45 is located near the center in the lateral direction of the casing (Y-axis direction in the figure).

As shown in FIG. 6, when the opening 44 </ b> A is viewed from the longitudinal direction of the casing (X-axis direction in the drawing), the opening / closing detection magnet 70 provided in the magnet holding unit 45 is visible. Further, since a part of the opening 44A protrudes from the main surface 3A of the lower housing 3 where the operation unit 14 is provided in the housing thickness direction (Z-axis direction in the drawing), as shown in FIG. Since the opening 44 </ b> A of the connecting portion 4 is covered with the appearance sheet 47, the cellular phone 1 does not impair the appearance quality.
Note that the first hinge 28 is inserted into the accommodating portion 44 from the opening 44B along the lateral direction of the casing (the Y-axis direction in the drawing).

  As shown in FIG. 5, the hinge accommodating part 43 accommodates the holding part 60 which comprises a part of 2nd hinge 29 from the upper direction opened. Of the side surfaces of the hinge housing portion 43, a screw hole portion 49 is provided on the side surface 43 </ b> A on the main surface 3 </ b> A side of the lower housing 3. And the screw | thread 46 is inserted from the screw hole part 49, and the holding | maintenance part 60 is fixed to the hinge accommodating part 43 by screwing the screw hole part 61 of the holding | maintenance part 60 with the screw 46.

  Further, as shown in FIG. 6, the entire side surface 43 </ b> A on the main surface 3 </ b> A side of the lower housing 3 among the side surfaces of the hinge housing portion 43 is covered with the appearance sheet 48 so as not to deteriorate the appearance quality.

  As shown in FIG. 5, the second hinge 29 accommodated in the connecting portion 4 includes a rotating shaft member 50 and a holding member 60. The second hinge 29 is formed of a metal material because high rigidity is required.

  As shown in FIG. 5, the rotation shaft member 50 is formed on the diameter portion 51, the arm portion 53 formed so as to be orthogonal to the diameter portion 51, and the arm portion 53, and the upper housing 2 is formed by screws. The first screw hole portion 55 is fixed to the first screw hole portion 55.

  As shown in FIG. 5, among the rotary shaft members 50 constituting the second hinge 29, the arm portion 53 includes a base portion 53 </ b> A and a short direction of the upper housing 2 from the base portion 53 </ b> A (Y-axis direction in the drawing). And a second extension portion 53C extending from the base portion 53A in the longitudinal direction of the upper housing 2 (in the X-axis direction in the drawing). Further, as shown in FIG. 7, the arm portion 53 is formed in an approximately L shape when viewed from the thickness direction of the upper housing 2 (Z-axis direction in the drawing). As shown in FIG. 7, ribs 54 that form a substantially L shape are provided on one side surface of the base portion 53A and the first extension portion 53B. The rib 54 extends from the end closer to the diameter 51 of the base 53A to the tip of the first extension 53B in the short direction (Y-axis direction in the drawing) of the upper housing 2. A first screw hole 55 that is fixed to the upper housing 2 by a screw is provided at the tip of the second extending portion 53C.

  The holding member 60 shown in FIG. 5 has a screw hole portion 61 that is fixed to the connecting portion 40 by a screw 46. The holding member 60 is rotatably attached to the holding member 60 by holding and supporting the diameter portion 51 of the rotating shaft member 50 so as to be rotatable.

  As shown in FIG. 4, in the accommodating portion 44 in which the opening / closing detection magnet 70 is accommodated, the thick portion of the resin-made connecting portion 4 is stealed from the side surface on the main surface 3 </ b> A side of the lower housing 3. The opening 44 </ b> A on the side surface on the main surface 3 </ b> A side of the lower housing 3 is covered with an appearance sheet 47. Therefore, even when the mobile phone 1 opens horizontally or vertically, the appearance quality is not impaired.

  As shown in FIG. 4, the opening / closing detection magnet 70 is provided in the connecting portion 4. Therefore, it is possible to prevent an increase in size of the casing as compared with the conventional example in which the upper casing 2 and the lower casing 3 are provided with the open / close detector.

  Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.

  The mobile terminal according to the present invention has an effect of preventing erroneous detection of the open / closed state of the mobile terminal, and is useful as a mobile phone or the like.

DESCRIPTION OF SYMBOLS 1 Cellular phone 2 Upper housing | casing 3 Lower housing | casing 3A Main surface 14 Operation part 42 Inclination part 44 Storage part 44A Opening part 45 Magnet holding part 47 Appearance sheet 70 Opening / closing detection magnet 71 Concave part 72 Convex part 80 Magnetic detection element

Claims (2)

In a mobile terminal comprising a first housing, a second housing, and a connecting portion that rotatably connects the first housing and the second housing,
The connecting portion is connected to the first casing and is connected to the first casing, the first rotating shaft enabling the second casing to rotate in the first direction with respect to the first casing, and the second casing. A second rotation shaft coupled and rotatable in a second direction orthogonal to the first direction;
A convex portion is formed in the connecting portion, and a magnet is provided in the convex portion,
In the second housing, a recess is formed at a position corresponding to the connecting portion in a closed state overlapping the first housing, and a magnetic change of the magnet is detected on the back surface of the recess. A magnetic detection element for detecting an open state of the portable terminal is provided,
A pair of opposing protrusions are provided inside the recess,
When the first casing and the second casing overlap with each other in the closed state, the convex portion and the concave portion are engaged, and the magnet and the magnetic detection element overlap each other in the casing thickness direction. A portable terminal. The mobile terminal according to claim 1,
  The pair of protrusions are provided in the longitudinal direction of the recesses.

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