JP3866673B2 - Open / close detection mechanism of foldable mobile terminal equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to opening / closing detection of a folding portable terminal device such as a mobile phone, and more particularly to an opening / closing detection mechanism of a folding portable terminal device that can detect a folded opening / closing angle.
[0002]
[Prior art]
Conventionally, with this type of foldable mobile terminal device, the current consumption is reduced by turning off the LCD (liquid crystal) panel and the backlight when the mobile terminal device is folded in order to extend the life of the secondary battery. Is reduced. In addition, when a folded state is detected, various functions can be invalidated.
[0003]
One such prior art is disclosed in Patent Document 1 below.
[0004]
[Patent Document 1]
JP 2002-125025 A (paragraphs [0013 to 0016], FIG. 1 and FIG. 2)
[0005]
According to Patent Document 1, a magnet and a magnetic sensor element are provided in the first case and the second case, which overlap each other when folded, and the magnet and the magnetic sensor element face each other in the folded state so that the magnetic force of the magnet is increased. Open / close detection is performed by the recognition of the magnetic sensor element.
[0006]
However, with this prior art, it is only possible to detect whether or not the folding portable terminal device is in a folded state, and it is impossible to detect the opening / closing angle.
[0007]
Other conventional techniques for detecting only whether such a folded state is disclosed in Japanese Patent Application Laid-Open No. 2001-320474, Japanese Patent Application Laid-Open No. 11-027352, and the like.
[0008]
Further, when viewed from another point of view, the following Patent Document 2 discloses a conventional technique for locking an opening / closing operation of a foldable portable terminal device at an arbitrary angle.
[0009]
[Patent Document 2]
Japanese Patent Laid-Open No. 11-252223 (paragraphs [0010 to 0013], FIGS. 2 to 4)
[0010]
According to Patent Document 2, the first case and the second case can be opened and closed via a hinge portion, and magnets are provided at arbitrary angles in the hinge portions of the first case and the second case, respectively. Opening and closing can be locked at an arbitrary angle by the magnetic force attracted by the magnetic poles of the magnets facing each other during operation.
[0011]
[Problems to be solved by the invention]
In the two types of conventional technologies described above, the first conventional technology such as Patent Document 1 only detects whether or not the folding portable terminal device is in a folded state. Has the problem that it is impossible to detect.
[0012]
In the second prior art of Patent Document 2, the opening / closing can be locked at an arbitrary opening / closing angle, but it is impossible to detect the opening / closing angle and to control any other operation from the angle information. There is a problem that.
[0013]
An object of the present invention is to provide an open / close detection mechanism for a folding portable terminal device that can solve the above-described conventional problems, can detect an open / close angle, and can control various operations in accordance with the open / close angle. It is to provide.
[0014]
[Means for Solving the Problems]
An open / close detection mechanism for a foldable portable terminal device of the present invention includes a first case and a second case connected to the first case, and the first and second cases are connected to each other via a rotation connecting portion. In a foldable portable terminal device having a folding opening / closing detection means, the folding opening / closing detection means is installed in the rotary connecting portion and is one of the first and second cases. A substantially cylindrical magnet that rotates in conjunction with the opening / closing operation of the case and subdivides the angle of the magnetic pole property and sets a plurality of angles at a desired angle in the circumferential direction; and the other of the first and second cases The magnetic sensor element is configured to detect opening / closing by recognizing the magnetic force of the magnet installed in the case and rotating. Further, the open / close detection mechanism of the foldable portable terminal device includes a control means for controlling various operations of the foldable portable terminal device based on the detection result of the magnetic sensor element corresponding to the angle of the magnetic pole property of the magnet. Is preferred.
[0015]
According to the present invention as described above, the folding opening / closing detection means including the magnet and the magnetic sensor element is provided in the rotary connecting portion that allows the first case and the second case to be folded open / closed at a position where they overlap each other. When the magnet rotates in conjunction with the folding operation, the magnetic sensor element recognizes the magnetic force of the magnet, performs switch control, and can detect the open / close angle. In addition, it is possible to detect the open / close angle arbitrarily by setting or subdividing the magnet's magnetic pole angle according to the angle that the magnetic sensor element wants to detect. Various operations related to the opening / closing operation of the portable mobile terminal device can be controlled.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail with reference to the drawings. It will be described first embodiment of the foldable portable terminal device of the opening and closing detecting mechanism of the present invention.
[0017]
FIG. 1 is a perspective view showing a schematic configuration when a folding portable terminal device according to an embodiment of the present invention is opened from a folded state, and FIG. 2 is a folding view of the folding portable terminal device shown in FIG. FIG. 3 is a perspective view showing the configuration of the magnet in this embodiment .
[0018]
The configuration of this embodiment will be described. Note that the foldable mobile terminal device described here is a foldable mobile phone.
[0019]
In this foldable portable terminal device, the rotary connecting portion 3 such as a hinge structure connected at one end is provided so that the surfaces of the first case 1 and the second case 6 can be folded and opened by being overlapped with each other. is there. In the first case 1, a receiver 7 and a display unit 2 including an LCD (liquid crystal display) panel and a backlight are mounted on the upper portion on the inner surface side.
[0020]
In addition, in the second case 6, a magnetic sensor element 5 as a folding open / close detection means is mounted on a substrate such as a printed circuit board. As the magnetic sensor element 5, it is preferable to use a Hall element. In addition, the second case 6 is mounted with a battery pack, operation key portions for inputting various operations, and necessary electronic components.
[0021]
In this foldable portable terminal device, a magnet 4 is disposed on the rotary connecting portion 3.
The As shown in FIG. 3, the magnet 4 having a cylindrical shape is provided with two magnetized portions 41 and 42 having a magnetization angle of a circumferential angle θ1, and two magnetizations having a magnetization angle θ1. The parts 41 and 42 are provided symmetrically and are subdivided.
[0022]
As the magnet 4 rotates in conjunction with the opening and closing operations of the first case 1 and the second case 6, the magnetic sensor element 5 recognizes the magnetic force of the magnetized portions 41 and 42 of the magnet 4, and the magnetic force is magnetic. The switch is turned on when the operating magnetic flux density of the sensor 5 is reached, and the switch is turned off when the so-called magnetic force disappears when the return magnetic flux density is reached. The open / close angle of the mobile terminal device is detected. When the opening / closing operation is performed, the magnetic sensor element 5 recognizes the magnetic polarities of the magnetized portions 41 and 42 and performs switch control twice.
[0023]
Next, the operation of the foldable portable terminal device according to the embodiment having such a configuration will be described.
[0024]
As shown in FIG. 1, normally, when the foldable portable terminal device is opened, the display unit 2 including an LCD panel and a backlight is in a lit state in which it is always in operation, and various functions of the portable terminal device are provided. It is in a valid state.
[0025]
Here, as illustrated in FIG. 2, when the mobile terminal device is folded so that the first case 1 and the second case 6 overlap each other, the mobile terminal device is arranged in the rotary connecting portion 3 and rotates in conjunction with the first case 1 and the second case 6. The magnetic sensor element 5 mounted on the second case 6 with respect to the magnet 4 recognizes the magnetic polarity of one magnetized portion 41 of the magnet 4 and turns on the switch of the magnetic sensor element 5, so that the mobile terminal device Is detected, the display unit 2 functions such as LCD display and backlight are turned off, and the various functions of the mobile terminal device are disabled.
[0026]
Next, when the portable terminal device is operated from the folded state to the opened state of the foldable portable terminal device as shown in FIG. 1, the magnet 4 mounted on the rotational connecting portion 3 is connected to the rotational connecting portion. 3, the magnetic sensor element 5 mounted on the second case 6 reacts by recognizing the polarity of the magnetic force, and repeats the on-off operation of the switch. It is possible to detect the magnetization angle θ1 of the magnetic parts 41 and 42 and the number of times the switch-on → off operation of the magnetic sensor element 5 is repeated, calculate the opening / closing angle of the mobile terminal device, and control the automatic opening / closing operation, etc. Accordingly, it is possible to perform control for stopping the automatic opening / closing operation of the mobile terminal device, control for extending / retracting the antenna, control for turning on / off the display unit, and the like at an arbitrary opening / closing angle.
[0027]
FIG. 4 is a circuit block diagram of the control means for performing the opening / closing detection operation in this embodiment .
[0028]
When the foldable portable terminal device is folded as shown in FIG. 2, the open / close detection circuit 9 including the magnetic sensor element 5 is turned on by the recognition of the magnetic polarity of the magnetized portion 41 of the magnet 4 as shown in FIG. The control circuit 8 outputs a signal indicating the folded state to the LCD display control 11. The LCD display control 11 receives this signal and performs LCD display control so that the display of the LCD 12 is turned off and the backlight 13 is turned off. To control.
[0029]
On the contrary, the first case 1 and the second case 6 in the folded state are completely opened as shown in FIG. 1, so that the magnetic sensor element 5 has the magnetized portions 41 and 42 of the magnet 4 disposed on the rotary connecting portion 3 . Both magnetic polarities are not recognized, and the magnetic sensor element 5 switches off. When the magnetic sensor element 5 is switched off, the open / close detection circuit 9 and the control circuit 8 control the LCD display control 11 to turn on the display of the LCD 12, turn on the backlight 13, and operate the portable terminal device with the operation key 10 or the like. You can do it.
[0030]
In addition, the magnetic sensor element 5 recognizes the magnetic polarity of the other magnetized portion 42 of the magnet 4 during the operation from the folded state of the foldable portable terminal device to the fully opened state. Via the control circuit 8, for example, it is possible to control the extension operation and the storage operation of the antenna.
[0031]
The magnetic sensor element 5 mounted on the second case 6 performs switch control by recognizing only the magnetic polarities of the magnetized portions 41 and 42 of the magnet 4 disposed in the rotary connecting portion 3. By setting the magnetizing angle θ1 shown in FIG. 3 to an arbitrary angle in the magnetizing angle of the magnet 4 arranged in the rotary connecting portion 3, the opening / closing angle of the folded portable terminal device is set to an arbitrary angle θ1. It becomes possible to detect.
[0032]
Thus, the resolution of the opening / closing detection can be improved by subdividing and detecting the angle of the opening / closing detection position. Thereby, when performing the opening and closing operation automatically, for example, when performing the opening and closing operation automatically using the power of the motor or the like, when the mobile terminal device reaches a predetermined opening and closing angle, the power control of the motor or the like is performed, Control such as stopping the automatic opening / closing operation of the portable terminal device at an arbitrary opening / closing angle can be performed. Similarly, when a predetermined opening / closing angle is reached, power control for extending the antenna is performed to control the antenna extending operation of the mobile terminal device at an arbitrary opening / closing angle, It is possible to control the antenna storing operation stored inside by the opening / closing angle.
[0033]
It should be noted that the subdivision of the magnetizing angle of the magnet 4 is not limited to the two magnetized portions shown in FIG. 3, and it goes without saying that three or more magnetized portions can be formed. Further, it is possible to control various operations in detail.
[0034]
【The invention's effect】
The first effect is that it is possible to arbitrarily set an angle for detecting opening and closing of the folded portable terminal device.
[0035]
The reason is that the opening / closing detection angle is detected at an arbitrary angle by disposing the magnet at the rotation connecting portion and setting the magnetizing angle of the magnet at an arbitrary angle.
[0036]
The second effect is that it is possible to increase the resolution of the angle for detecting opening and closing.
[0037]
The reason for this is to increase the resolution of the open / close detection angle by disposing the magnet in the rotary connecting portion and subdividing the magnetized angle of the magnet.
[0038]
A third effect is to enable control of various operations related to the opening / closing operation of the folding portable terminal device.
[0039]
The reason for this is that the magnetized angle of the magnet arranged at the rotary connecting part is set variously such as a predetermined set angle, an arbitrary angle and a plurality of subdivided angles, and various operations are performed via the control means based on the detected opening / closing angle. This is because it can be controlled.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic configuration when a foldable portable terminal device according to an embodiment of the present invention is opened from a folded state.
FIG. 2 is a perspective view showing a schematic configuration in a state where the foldable portable terminal device shown in FIG . 1 is folded.
FIG. 3 is a perspective view showing a configuration of a magnet in this embodiment .
FIG. 4 is a circuit block diagram of control means for performing an open / close detection operation in this embodiment .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st case 2 Display part 3 Rotary connection part 4 Magnet 5 Magnetic sensor element 6 2nd case 7 Receiver 8 Control circuit 9 Opening / closing detection circuit 10 Operation key 11 LCD display control 12 LCD
13 Backlight
41, 42 Magnetized part

Claims (5)

Folding opening / closing detection means including a first case and a second case connected to the first case, wherein the first and second cases can be folded open / closed at overlapping positions via a rotary connecting portion. In a foldable portable terminal device having
The folding opening / closing detection means is installed in the rotation connecting portion and rotates in conjunction with the opening / closing operation of one of the first and second cases, and further subdivides the angle of the magnetic pole property in the circumferential direction. A substantially cylindrical magnet set to a plurality of arbitrary angles, and a magnetic sensor element that is installed in the other case of the first and second cases and recognizes the magnetic force of the rotating magnet to detect opening and closing. An open / close detection mechanism for a foldable portable terminal device. The foldable portable terminal device according to claim 1, further comprising control means for controlling various operations of the foldable portable terminal device based on a detection result of the magnetic sensor element corresponding to an angle of the magnetic pole polarity of the magnet. Open / close detection mechanism. The open / close detection mechanism for a foldable portable terminal device according to claim 1, wherein the magnetic sensor element is a Hall element. The open / close detection mechanism for a foldable portable terminal device according to any one of claims 1 to 3, wherein the rotation connecting portion has a hinge structure. 5. The open / close detection mechanism for a foldable mobile terminal device according to any one of claims 1 to 4, wherein the foldable mobile terminal device is a foldable mobile phone.

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