JP2007124347A - Portable electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide portable electronic equipment, wherein efficiency of power generation is improved by detecting the direction of the large light volume emitted to a solar battery panel and providing a rotation control part which rotates the solar battery panel in the direction of the large light volume. <P>SOLUTION: The portable electronic equipment 1 is provided with a main body part 2, a movable part 3 for covering the main body part 2, and an opening and closing rotary shaft 4 connecting the main body part 2 and the movable part 3. On the surface of the outside of the movable part 3, the solar battery panel 6 and a photodetection element 7 are mounted, The solar battery panel 6 photo-electrically converts emitted light to generate electric energy, and stores the electric energy in a charger 12 built-in the main body part 2. The photodetection element 7 detects a direction of increasing the light emitted onto the photodetecting surface of the panel 6, and the rotation control part 5 (motor control part 5c) drive-controls the movable part 3 in the direction of increasing the light emitted to the panel 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable electronic device equipped with a solar cell panel that generates power by irradiated light.

  Mobile phones are widely and rapidly spreading as one of portable electronic devices. Since the mobile phone uses a built-in rechargeable battery as a power source, it is necessary to perform a separate charging operation as the rechargeable battery is consumed. In particular, recently, power consumption of mobile phones tends to increase with the increase in functionality, and the power receiving battery tends to run out frequently.

  Since charging of the rechargeable battery is performed by rectifying a commercial power supply for general households, the charging operation is greatly limited in time and place, and an unusable state may occur due to forgetting to charge.

  In order to solve the charging problem of such a rechargeable battery, a mobile phone equipped with a solar battery has been proposed (see, for example, Patent Document 1).

  The mobile phone disclosed in Patent Document 1 has a solar cell formed on the front or back surface of a display unit. It is possible to perform constant charging by the solar cell formed on the front or back surface of the display unit, but since the attitude of the solar cell cannot be controlled, the power generation efficiency is low and sufficient charging ability is not obtained There's a problem.

In addition, portable solar battery chargers have been proposed in the past, and have recently been used considerably.
JP 2004-140521 A

  The present invention has been made in view of such circumstances, a light detection unit that detects a direction in which the amount of light applied to the solar cell panel is large, and a rotation control unit that rotates the solar cell panel in a direction in which the amount of light is large. It is an object of the present invention to provide a portable electronic device with improved power generation efficiency.

  In addition, the present invention includes a GPS azimuth detecting unit that detects the azimuth of the main body, a solar position calculating unit that calculates the position of the sun, and a rotation control unit that rotates the solar cell panel in the sun direction. Another object is to provide a portable electronic device with improved efficiency.

  Another object of the present invention is to provide a portable electronic device with improved power generation efficiency by including a rotating leg that rotates the main body in a direction parallel to the back surface of the main body.

  The present invention also provides a supporting main leg portion that is provided on the back surface of the main body portion and supports the main body portion in a direction parallel to the back surface, and a supporting auxiliary leg portion that rotates the main body portion around the supporting main leg portion. Another object is to provide a portable electronic device with improved power generation efficiency.

  Note that the portable electronic device referred to in the present application is a concept that includes an electronic device that can be carried and used in different places such as a portable electronic device in addition to a portable electronic device such as a mobile phone. Carrying is a concept that includes mounting on automobiles, bicycles, wheelbarrows, and the like.

  A portable electronic device according to the present invention is a foldable portable electronic device including a main body unit including a functional unit and a movable unit on which the solar cell panel is mounted and covers the main body unit. A light detection unit that detects a direction in which the amount of light to be emitted is large, and a rotation control unit that controls the rotation of the movable unit so that the light receiving surface of the solar cell panel is directed in the direction in which the amount of light is large. To do.

  With this configuration, the solar cell panel can be directed in a direction in which the irradiation light is large, so that the power generation efficiency in the portable electronic device can be improved and the charging function can be effectively utilized.

  In the portable electronic device according to the present invention, the light detection unit detects the amount of light using a light receiving element of a solid-state imaging device provided in the movable unit.

  With this configuration, since the light receiving element included in the solid-state imaging device can be used as it is as the light receiving element of the light detection unit, the configuration of the light detection unit can be simplified.

  In the portable electronic device according to the present invention, when the movable part is closed, a gap for clamping is formed between the main body part and the movable part.

  With this configuration, the main unit can be stored in a pocket or the like separately from the movable part and stably held, and even when a portable electronic device is stored, the solar panel is exposed to face the irradiated light Therefore, charging efficiency can be improved.

  A portable electronic device according to the present invention is a foldable portable electronic device that includes a main body unit that incorporates a functional unit and a movable unit that includes a solar cell panel and covers the main body unit. A GPS azimuth detecting unit for detecting the azimuth in which the main body unit is disposed, a solar position calculating unit for calculating the position of the sun from date information, time information and the azimuth, and a light receiving surface of the solar cell panel in the sun direction. A rotation control unit that controls the rotation of the movable unit so as to be directed.

  With this configuration, the solar cell panel can be directed toward the sun based on the orientation of the portable electronic device and the position of the sun, so the power generation efficiency of the portable electronic device placed in a place where sunlight is present can be reduced. Can be improved.

  In the portable electronic device according to the present invention, the main body portion and the movable portion are connected by a folding opening / closing rotation shaft.

  With this configuration, the main body portion and the movable portion can be coupled with a simple structure, and the movable portion can be easily controlled to rotate.

  In the portable electronic device according to the present invention, the main body portion and the movable portion are connected by a cross rotation shaft that intersects the opening / closing rotation shaft.

  With this configuration, in addition to the rotation control in the opening and closing direction by the movable part, the rotation control by the intersecting rotation axis is performed in the direction intersecting the opening and closing direction, enabling high-accuracy tracking and further improving the power generation efficiency Can be made.

  In the portable electronic device according to the present invention, a rotating leg for rotating the main body in a direction parallel to the back of the main body is engaged with the back of the main body.

  With this configuration, the main body can be rotated with the rotation legs placed on the floor surface, so that in addition to the rotation control, the direction of the main body is controlled to move the solar cell panel in a more appropriate direction. The power generation efficiency can be further improved.

  In the portable electronic device according to the present invention, the main body part is provided on the back surface of the main body part and supports the main body part in a direction parallel to the back surface, and the main body part centering on the main leg part for support It is provided with the auxiliary leg part for support which rotates.

  With this configuration, the direction of the main body can be easily controlled. In addition to the rotation control, the direction of the main body can be controlled to direct the solar cell panel in a more appropriate direction, further improving power generation efficiency. can do.

  In the portable electronic device according to the present invention, an eccentric vibration part is provided corresponding to the supporting sub-leg part.

  According to this configuration, the main body can be easily rotated around the supporting main leg, so that the direction of the main body can be easily controlled.

  The portable electronic device according to the present invention is characterized in that a display section showing the operation content of the functional section is provided on the main body side of the movable section.

  With this configuration, the movable part can be used effectively.

  In the portable electronic device according to the present invention, the function of the functional unit is a telephone function.

  With this configuration, since the power generation efficiency of the mobile phone is improved, the convenience of the mobile phone can be improved.

  The portable electronic device according to the present invention includes a light detection unit that detects a direction in which the amount of light applied to the solar cell panel is large, and a rotation control unit that rotates the solar cell panel in a direction in which the amount of light is large. The solar cell panel can be directed in the direction in which the amount of received light is maximized, and a portable electronic device with improved power generation efficiency can be provided.

  According to the portable electronic device according to the present invention, a GPS azimuth detecting unit that detects the azimuth of the main body, a solar position calculating unit that calculates the position of the sun, and a rotation control unit that rotates the solar cell panel in the direction of the sun. Therefore, the solar cell panel can be directed in the direction in which the amount of light received by sunlight is maximized, and a portable electronic device with improved power generation efficiency can be provided.

  According to the portable electronic device according to the present invention, since the rotation leg portion that rotates the main body portion in a direction parallel to the back surface of the main body portion is provided, the solar cell panel can be directed in the direction in which the amount of received light is maximized. This makes it possible to provide a portable electronic device with improved power generation efficiency.

  According to the portable electronic device according to the present invention, the supporting main leg portion that is provided on the back surface of the main body portion and supports the main body portion in a direction parallel to the back surface, and the main body portion is rotated around the supporting main leg portion. By providing the supporting sub-leg portion, it is possible to direct the solar cell panel in the direction in which the amount of received light is maximized, and it is possible to provide a portable electronic device with improved power generation efficiency.

  According to the portable electronic device according to the present invention, since the power generation efficiency is improved, efficient charging using irradiation light (sunlight) is possible even when there is no charging facility such as a commercial power source. There is an effect that the convenience of the electronic device can be improved.

  Since the portable electronic device according to the present invention can be used as a mobile phone, the convenience of the mobile phone is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Embodiment 1>
FIG. 1 is a perspective view showing an outline of the appearance of a portable electronic device according to Embodiment 1 of the present invention. A part (opening / closing rotation shaft 4, servo motor 5m) is shown in perspective.

  A portable electronic device 1 according to the first embodiment includes a main body 2 that constitutes a main part of the portable electronic device 1 and a movable portion 3 that covers the main body 2. The main body 2 and the movable part 3 are connected by an opening / closing rotation shaft 4 and are configured to be rotatable with respect to each other.

  For example, an operation key 2k is arranged on the surface of the main body unit 2 so that an operation corresponding to the function of the portable electronic device 1 is possible.

  A solar cell panel 6 is mounted on the surface (outer surface) of the movable part 3. The solar cell panel 6 photoelectrically converts the irradiated light to generate electric energy, and stores the electric energy in the charger 12 (see FIG. 2) built in the main body 2.

  On the outer surface of the movable portion 3, a light receiving element 7 is disposed adjacent to the solar cell panel 6. The light receiving element 7 detects light by using, for example, a light receiving function (light quantity detecting function; a light receiving element of the CCD solid state image pickup device) included in the CCD solid state image pickup device (light receiving portion of the camera) built in the portable electronic device 1. The configuration of the unit 25 (see FIG. 2) can be simplified.

  Note that a display unit (not shown) is generally formed on the inner surface (main body unit side) of the movable unit 3, and the operation content of the functional unit 24 (see FIG. 2) of the portable electronic device 1 is described. A display is made.

  The opening / closing rotation shaft 4 is composed of a fixed bearing 4s fixed to the main body 2 and a rotation shaft 4r connected to the movable portion 3 and rotatable relative to the fixed bearing 4s. Therefore, the opening / closing rotation shaft 4 is configured to engage the main body portion 2 and the movable portion 3. The movable part 3 can be opened and closed between 0 degrees and 180 degrees in a lid shape around the rotation axis Axa with respect to the main body part 2, and the portable electronic device 1 constitutes a so-called foldable form.

  The fixed bearing 4s is provided with a servo motor 5m (shown in perspective) for driving and rotating the rotation shaft 4r, and the rotation shaft according to a control signal from the motor control unit 5c (see FIG. 2). 4r is driven to rotate in the direction indicated by the arrow Aa. The movable part 3 opens and closes with respect to the main body part 2 in the direction indicated by the arrow Ab in accordance with the rotation of the rotation shaft 4r indicated by the arrow Aa.

  As a solar cell applied to the solar battery panel 6, from the viewpoints of high efficiency, reduction in thickness and weight, securing of mechanical strength, securing of design, etc., compound semiconductor crystal thin film solar A battery, a single crystal solar battery, a polycrystalline silicon solar battery, or the like can be used.

  Since the portable electronic device 1 is exposed to the irradiation light, it is preferable that the portable electronic device 1 has a structure that is excellent in heat resistance and light resistance and can ensure mechanical strength. Moreover, since it may be arrange | positioned outdoors, it is preferable to give a waterproof function.

  Specifically, the portable electronic device 1 is more preferably applied to a mobile phone from the viewpoint of further improving the convenience of the mobile phone. When applied to a mobile phone, an antenna unit (not shown) or the like is further provided using a known technique.

  The portable electronic device 1 can be a portable information device such as an electronic dictionary, a portable solar battery charger, or a portable information device in addition to a mobile phone.

  FIG. 2 is a block diagram showing an outline of the configuration blocks of the portable electronic device according to Embodiment 1 of the present invention.

  The building blocks of the portable electronic device 1 are divided into, for example, a main body 2 and a movable portion 3. The main body 2 is, for example, a rotation control unit 5, a charging circuit 21, a charger 22, a central processing unit (CPU: Central). Processing Unit) 23, function unit 24, photodetection unit 25, program memory 26, and the like.

  Moreover, the movable part 3 is comprised by the solar cell panel 6, the light receiving element 7, etc., for example. Note that the charging circuit 21 can also be formed in the movable portion 3. Moreover, since the charger 22 occupies a certain volume, the charger 22 is preferably provided in the main body 2.

  The charging circuit 21 efficiently transmits the electric energy generated by the solar cell panel 6 to the charger 22 and charges the charger 22 that operates as a power source. Specifically, for example, a voltage adjustment circuit, a backflow prevention circuit, an overcharge prevention circuit, and the like are included.

  The charger 22 is constituted by a rechargeable battery, serves as a power circuit for the portable electronic device 1, appropriately supplies power to the CPU 23 and other components, and performs various functions of the portable electronic device 1.

  The CPU 23 controls the basic operation of the portable electronic device 1. That is, necessary processing is performed so that the function unit 24 connected via the bus Bus can exhibit the function of the portable electronic device 1.

  The function unit 24 constitutes a main part for exhibiting the original function of the portable electronic device 1. For example, in the case of a mobile phone, a transmission / reception function, a transmission / reception data processing function, a transmission / reception data storage function, and the like are executed. Further, it is configured with functional blocks necessary for functioning as a mobile phone such as an input unit (operation key 2k), a display unit, a transmission / reception unit, a data processing unit, a telephone number storage unit, and a telephone number calling unit.

  The CPU 23 operates in the light detection unit 25, the program memory 26, and the rotation control unit 5 connected via the bus Bus so that the portable electronic device 1 (charger 22) can realize high power generation efficiency. To do. The operation at this time is executed and controlled by a control program (light quantity detection program and tracking program) installed in advance in the program memory 26 (see FIG. 3).

  Specifically, the CPU 23 supplies a control signal to the motor control unit 5c of the rotation control unit 5 and drives the servo motor 5m by the motor control unit 5c. The servo motor 5m rotates the movable part 3 by the opening / closing rotation shaft 4 to change the direction of the light receiving element 7 (solar cell panel 6). The light detection unit 25 detects the amount of light received by the light receiving element 7 in accordance with the position of the movable unit 3 and obtains the relationship between the position (direction) of the movable unit 3 and the amount of received light.

  That is, the light detection unit 25 can detect the direction in which the light applied to the light receiving surface of the solar cell panel 6 increases. In addition, it is preferable to detect the direction where the maximum light amount is detected as the direction in which the irradiated light increases. As described above, the light detection unit 25 uses the light receiving element 7 of the solid-state imaging device (camera) provided in the movable unit 3 to detect the amount of irradiation light, thereby simplifying the configuration of the light detection unit 25. be able to. The light detection unit 25 is not configured only by hardware but is configured to function in cooperation with the light amount detection program installed in the program memory 26 and the CPU 23.

  As the servo motor 5m, a stepping motor or the like can be used. However, the servo motor 5m is small, has high torque, has quick response, can be finely fed, has stop torque when not energized, etc. In consideration of various characteristics, an ultrasonic motor is preferable. In the case of a portable electronic device that is larger than a small portable electronic device, a general servo motor may be used instead of an ultrasonic motor.

  Further, the CPU 23 supplies a control signal to the rotation control unit 5 (motor control unit 5c) so that the movable unit 3 is directed in a direction in which the light applied to the solar cell panel 6 is increased, thereby changing the direction of the movable unit 3. Control.

  FIG. 3 is a flowchart illustrating a control flow of the movable unit and the light detection unit of the portable electronic device according to the first embodiment of the present invention.

Step S1:
Start the control program. The start of the control program can be started, for example, when the light detection unit 25 detects that the portable electronic device 1 has been taken out of the pocket (stored in the dark part) and received by the light receiving element 7. Since the light receiving element 7 is connected to the light detection unit 25, it can be easily determined. In addition, it becomes possible to perform computer processing by CPU23 easily by setting it as the structure which converts the analog signal from the light receiving element 7 into a digital signal by AD conversion part (not shown).

  In addition, when an appropriate mechanical switch (not shown) is pressed, a specific electronic device (detector) is detected by a detector that detects that the device is placed on a plane. The control program may be configured to start when the position is taken (for example, as shown in FIG. 9).

  In addition, the control program starts such that the charger 22 is not fully charged, that there is a light amount that can be generated, and that the light amount does not change for a certain period of time (that is, the portable electronic device 1 is stationary in the room). It can be a condition. It is also possible to adopt a configuration that does not respond to an instantaneous change in the amount of light in a short time.

Step S2:
Start the light intensity detection program. That is, the movable portion 3 is rotated, and detection of the amount of light received by the light receiving element 7 is started in accordance with the position of the movable portion 3 (direction, that is, the opening angle formed by the movable portion 3 with respect to the main body portion 2). . Note that the direction of the light receiving surface of the light receiving element 7 and the direction of the light receiving surface of the solar cell panel 6 do not necessarily have to be the same direction as long as the mutual relationship is fixed or the relative relationship is clear. .

  The light received is not limited to a light source that moves like sunlight, but may be a light source that is fixed like an indoor lighting lamp.

Step S3:
An appropriate signal is output from the CPU 23 to the motor control unit 5c, and the movable unit 3 is gradually opened to detect the amount of light received by the light receiving element 7 at that time. That is, the amount of received light is detected by changing the light receiving direction of the light receiving element 7 (solar cell panel 6) (the direction of the light receiving surface: the opening angle of the movable portion 3), and the relationship between the amount of received light and the opening angle of the movable portion 3 is determined. Extract.

  At this time, the opening angle of the movable portion 3 is normally in a range from 0 degrees to 180 degrees. In consideration of the continuity of the light quantity distribution, the point that becomes the first peak (the maximum value of the light quantity) with the light quantity characteristic in an appropriate range may be obtained.

  In addition, it is also possible to obtain a direction in which the amount of received light increases as a configuration in which the light receiving element 7 itself can be rotated without changing the opening angle of the movable portion 3.

Step S4:
A direction (movable part 3) in which the light receiving amount of the solar cell panel 6 (the amount of light applied to the solar cell panel 6) is increased by the light detection unit 25 from the received light amount of the light receiving element 7 and the opening angle of the movable part 3 (step S3). Is detected (calculated).

  When the direction of the light receiving surface of the solar cell panel 6 and the light receiving surface of the light receiving element 7 coincide with each other, the opening angle of the movable part 3 detected as the amount of light received by the light receiving element 7 is large. The direction of increasing the amount of received light may be used.

  Further, when there is a certain angle between the light receiving surface of the solar cell panel 6 and the light receiving surface of the light receiving element 7, an appropriate calculation process is performed to calculate the direction in which the amount of light received by the solar cell panel 6 increases. That is, when the light reception amount of the light receiving element 7 is increased by setting the relative relationship between the light reception amount of the light receiving element 7 and the light reception amount of the solar cell panel 6 with respect to the opening angle of the movable portion 3 as an arithmetic expression (or comparison table). (The opening angle of the movable part 3) can be converted into an angle (the opening angle of the movable part 3) that increases the amount of light received by the solar cell panel 6.

  From the viewpoint of reliably improving the power generation efficiency, it is preferable that the direction in which the amount of received light is increased is defined by the direction in which the amount of received light is maximized.

Step S5:
Start the tracking program. That is, the adjustment of the opening angle of the movable part 3 is started.

Step S6:
The control signal is input to the motor control unit 5c of the rotation control unit 5 to control the rotation of the servo motor 5m, and by adjusting the opening angle of the movable unit 3, the solar cell panel 6 can move in the direction in which the amount of received light is large. It drives so that the part 3 (light-receiving surface of the solar cell panel 6) may face, and tracks irradiation light. Thereby, the movable part 3 is fixed at a position where the received light amount of the solar cell panel 6 is large (preferably a position where the received light amount is maximum), and can reliably charge the charger 22 with high power generation efficiency. .

Step S7:
It is determined whether or not a predetermined time has elapsed. If the predetermined time has elapsed (step S7: YES), the process returns to step S2 and the light amount detection program is started again. When the predetermined time has not elapsed (step S7: NO), the process proceeds to step S8. In other words, in the present embodiment, from the viewpoint of reducing power consumption, sensing is not always performed, but determination is performed every predetermined time. The method of detecting the amount of light every predetermined time is a very effective determination method when the irradiation light changes with time.

Step S8:
It is determined whether a condition for terminating the control program is satisfied. If the termination condition is satisfied (step S8: YES), the control program is terminated. If the end condition is not satisfied (step S8: NO), the process returns to step S7.

  As the termination condition, it is possible to apply a case where the portable electronic device 1 is stored in a pocket or the like, the amount of light is not detected, a termination instruction is given, or the battery is fully charged.

  When the portable electronic device according to the present embodiment is applied to a mobile phone, the tracking according to the present embodiment is performed when an incoming call or mail is received or when a timer or alarm is set. The mechanism can be used (reused). For example, it is easy to hold the movable part 3 by getting up, and the incoming call can be clearly seen by the movement of the mobile phone even in the manner mode. It can also be easy to understand for those who cannot hear sound.

<Embodiment 2>
In the present embodiment, the position of the portable electronic device 1 (azimuth: portable electronic device 1) is determined by using a GPS (Global Positioning System) without using the light receiving element 7 and the light detection unit 25. Direction), calculating the solar position (the direction of the sun) from the time (date and time) and direction, and directing the light-receiving surface of the solar cell panel 6 toward the sun, enabling higher power generation efficiency To do.

  FIG. 4 is a block diagram showing an outline of the configuration blocks of the portable electronic device according to the second embodiment of the present invention.

  The basic configuration of the present embodiment is the same as that of the first embodiment. However, the light receiving element 7 and the light detection unit 25 used in the first embodiment are omitted, and a GPS azimuth detection unit 27 and a solar position calculation unit 28 are used instead. The difference is that it is provided. Along with this, the control program installed in the program memory 26 is composed of a position verification program (azimuth detection program, sun position calculation program) and a tracking program. Since other configurations are the same as those of the first embodiment, detailed description thereof is omitted.

  The GPS azimuth detecting unit 27 and the sun position calculating unit 28 are not configured only by hardware, but function in cooperation with the azimuth detecting program, the sun position calculating program, and the CPU 23 that are installed in advance in the program memory 26. Configured to do.

  The GPS azimuth detecting unit 27 includes a GPS (not shown) in the main body 2 and can detect the azimuth (direction in which the main body 2 faces) where the main body 2 is arranged with high accuracy by GPS. That is, the azimuth | direction of the main-body part 2 is detected by running the azimuth | direction detection program which detects an azimuth | direction based on the data from GPS.

  The sun position calculation unit 28 is configured to calculate the position (azimuth and altitude) of the sun from the date and time. That is, the calculation of the sun position is performed by executing a sun position calculation program that calculates the date and time and the position of the sun.

  The servo motor 5m is driven using the tracking program so that the light receiving surface of the solar battery panel 6 is directed to the obtained sun position, as in the first embodiment. With this configuration, high power generation efficiency can be realized. In addition, it is also possible to use together with the light quantity detection program using the light receiving element 7 and the light detection part 25 of Embodiment 1, and it can be set as a more convenient charge function by using together.

  FIG. 5 is a flowchart for explaining the flow of control of the azimuth detection and movable part of the portable electronic device according to the second embodiment of the present invention.

Step S11:
Start the control program. Except for the point that the light receiving element 7 and the light detection unit 25 are not used, the configuration can be the same as that in step S1 of the first embodiment, and the details are omitted.

Step S12:
Start the position verification program. That is, a direction detection program for receiving a signal from a GPS satellite by a GPS (GPS receiver) is started, and the position of the sun is calculated from the date and time information that the portable electronic device 1 has as data. Start the solar position calculation program.

Step S13:
The orientation of the main body 2 is detected by GPS. By applying data from the GPS to the azimuth detection program, the azimuth of the main body 2 can be detected with extremely high accuracy.

Step S14:
The position of the sun is calculated by applying the calendar (year / month / day) and time data of the portable electronic device 1 to the solar position calculation program. The sun position calculation program is configured to be executed by the sun position calculation unit 28. For the sake of convenience, the sun position calculation program and the azimuth detection program are set as position collation programs. However, they can be executed as individual programs, and therefore can be executed in parallel.

Step S15:
Start the tracking program. That is, the adjustment of the opening angle of the movable part 3 is started.

Step S16:
By inputting a control signal to the motor control unit 5c of the rotation control unit 5 to control the rotation of the servo motor 5m and adjusting the opening angle of the movable unit 3, the solar cell panel 6 faces the sun. The solar cell panel 6 is driven. That is, the solar cell panel 6 is driven so as to direct the movable part 3 (light receiving surface of the solar cell panel 6) in a direction in which the amount of received light of the solar cell panel 6 is large (preferably the direction in which the amount of received light is maximum), and sunlight is tracked. Thereby, the movable part 3 is fixed at a position where the received light amount of the solar cell panel 6 is large (preferably a position where the received light amount is maximum), and can reliably charge the charger 22 with high power generation efficiency.

Step S17:
It is determined whether or not a predetermined time has elapsed. Since it can be configured in the same manner as step S7 of the first embodiment, the details are omitted.

Step S18:
It is determined whether a condition for terminating the control program is satisfied. Since it can be configured in the same manner as step S8 of the first embodiment, the details are omitted.

<Embodiment 3>
FIG. 6 is a perspective view showing an outline of the appearance of a portable electronic device according to Embodiment 3 of the present invention. A part (cross rotation shaft 8) is shown in perspective.

  The basic configuration of the present embodiment is the same as that of the first embodiment. In the first embodiment, the rotation direction of the movable portion 3 is only the arrow Aa direction around the rotation axis Axa of the opening / closing rotation shaft 4. On the other hand, since the cross rotation shaft 8 that intersects in the vertical direction is further provided and the main body 2 and the movable portion 3 are connected, the rotation of the cross rotation shaft 8 in the direction of the arrow Ac about the rotation axis Axb. Is possible.

  Therefore, since the movable range (movable direction) of the movable part 3 can be further expanded, the light receiving surface of the solar cell panel 6 can be directed (tracked) in the direction of irradiation light (sunlight) with higher accuracy. That is, in the first embodiment and the second embodiment, it may be difficult to set the light receiving surface of the solar cell panel 6 in a direction perpendicular to the direction of irradiation light. It is possible to make the light receiving surface of the panel 6 perpendicular to the direction of the irradiation light. Note that the process for obtaining the direction in which the amount of received light increases is the same as that in the first embodiment, and a description thereof will be omitted.

  The cross rotation shaft 8 can be configured similarly to the opening / closing rotation shaft 4. That is, since it can be constituted by a fixed bearing, a rotating shaft, and a cross-rotating servomotor that drives and rotates the rotating shaft, detailed description thereof is omitted. As the cross rotation servomotor, an ultrasonic motor is preferable as in the first embodiment.

  The configuration of the cross rotation shaft 8 in the present embodiment can be applied to the first embodiment and the second embodiment, and is higher than that in the first embodiment and the second embodiment. Power generation efficiency can be achieved.

<Embodiment 4>
7A and 7B are explanatory diagrams for explaining the operation of the portable electronic device according to the fourth embodiment of the present invention. FIG. 7A is a perspective view showing an outline of the appearance, and FIG. FIG. 4C is a bottom view.

  The basic configuration of the present embodiment is the same as that of the first embodiment. In the present embodiment, in addition to the configuration of the first embodiment, a rotation leg 9 that rotates the main body 2 in a direction parallel to the rear surface of the main body 2 is engaged with the rear surface of the main body 2. Yes. Note that the process for obtaining the direction in which the amount of received light increases is the same as that in the first embodiment, and a description thereof will be omitted.

  When the leg rotating servomotor 9m is rotated in a state where the rotating leg 9 is placed on the floor (mounting plane), the rotating leg 9 is placed (adsorbed and fixed) on the placing plane. Therefore, a reaction acts on the main body 2. Therefore, the main body 2 is rotated in the arrow Ad direction (the direction opposite to the rotation direction of the leg rotation servomotor 9m) about the rotation axis Axc with respect to the mounting plane parallel to the back surface of the main body 2. Can do. In other words, in addition to the rotation control (arrow Ab direction) of the opening / closing rotation shaft 4, the solar cell can be directed in a more appropriate direction (arrow Ad direction), so that it is possible to achieve higher power generation efficiency. Become.

  As the leg rotation servomotor 9m, an ultrasonic motor is preferable as in the first embodiment. Moreover, since it is necessary to rotate both the main-body part 2 and the movable part 3, it is set as the structure which generate | occur | produces a rotational torque larger than the total weight of the main-body part 2 and the movable part 3. FIG.

  The rotation leg 9 is preferably arranged at the center of gravity of the portable electronic device 1 in order to smoothly rotate the mounting plane parallel to the back surface of the main body 2. Further, the rotation leg 9 is configured to have an adsorptivity with respect to the flat surface, a fine unevenness is provided to increase the frictional force on the mounting plane, and the mounting plane of the rotating leg 9 is provided. The main body 2 and the movable part 3 can be stably rotated by, for example, denting the central part of the contacting surface.

  In other words, since the weight of the main body 2 is applied to the rotating leg 9, it is possible to stably rotate even if the weight is light as long as the friction between the rotating leg 9 and the mounting plane is sufficient. . Here, the reason why the central portion of the rotation leg 9 in contact with the mounting plane is recessed is that if there are slight protrusions on the mounting plane, the leg is supported by points and the frictional force is reduced. This is to prevent this.

<Embodiment 5>
FIG. 8 is an explanatory diagram for explaining the outline of the portable electronic device according to the fifth embodiment of the present invention. FIG. 8A shows the portable electronic device in a closed state as viewed from the side opposite to the opening / closing rotation shaft. (B) is a right side view, (C) is a bottom view, and (D) is a bottom view showing an internal mechanism. Note that, in (A), (B), and (D), the main part is shown in perspective.

  The basic configuration of the present embodiment is the same as that of the first embodiment. In the present embodiment, a supporting main leg portion 12, a supporting auxiliary leg portion 13, and an eccentric vibration portion 14 are provided as means for rotating the main body portion 2 in a direction parallel to the back surface of the main body portion 2. Note that there may be a plurality of supporting auxiliary leg portions 13.

  The horizontal position of the center of gravity (the position of the center of gravity of the portable electronic device 1 in the horizontal direction, including the horizontal position of the center of gravity when the movable unit 3 is opened) is the main supporting leg 12. The supporting main leg 12 supports the main body 2 in a direction parallel to the back surface.

  The supporting sub-leg portion 13 is disposed at a position away from the supporting main leg portion 12, and acts to rotate the main body 2 around the supporting main leg portion 12. Note that the process for obtaining the direction in which the amount of received light increases is the same as in the first embodiment, and thus the description thereof is omitted.

  In order to rotate the main body part 2 by the action of the supporting sub-leg part 13, an eccentric vibration part 14 is provided inside the main body part 2 so as to correspond to the supporting sub-leg part 13. The eccentric vibration part 14 includes an eccentric motor 14m and an eccentric weight 14w, converts the rotation of the eccentric motor 14m into vibration, and vibrates the supporting sub-leg part 13 by this vibration.

  When the eccentric motor 14m is rotated, for example, clockwise when viewed from the eccentric weight 14w, a counterclockwise reaction occurs in the main body 2 and the main body 2 moves in the left direction in the figure. That is, when viewed from the plane direction, the portable electronic device 1 is rotated clockwise around the supporting main leg 12.

  Since the main body 2 can be efficiently rotated around the supporting main leg 12, the direction of the main body 2 itself can be easily controlled. In addition, the rotation direction of the main-body part 2 can be changed suitably by changing the rotation direction of the eccentric motor 14m.

  As the eccentric motor 14m, a small rotary motor may be used, but a motor capable of controlling the rotation direction is applied. Note that a vibrator built in a cellular phone or the like can be used as the eccentric vibration unit 14.

  According to the present embodiment, it is possible to control the direction of the main body 2 on a plane, and the solar cell panel 6 can be directed in a more appropriate direction, so that higher power generation efficiency can be achieved. It becomes.

<Embodiment 6>
FIG. 9 is an explanatory diagram for explaining an outline of an external appearance and a usage example of a portable electronic device according to Embodiment 6 of the present invention, (A) is a side view in a closed state, and (B) is a usage diagram. It is a perspective view which shows an example.

  The basic configuration of the present embodiment is the same as that of the first embodiment. In the present embodiment, when the movable part 3 is closed, a sandwiching gap Gap is formed between the main body part 2 and the movable part 3. With this configuration, when the main body 2 is housed and held in a pocket PKT or the like, unnecessary external force is not applied to the open / close type moving shaft 4, so that the movable portion 3 is stably exposed to the outside of the PKT. Since the solar cell panel 6 can be irradiated with irradiation light, more efficient power generation is possible.

  The present embodiment can be similarly applied to the portable electronic device 1 of the first to fifth embodiments.

<Embodiment 7>
FIG. 10 is a perspective view showing an outline of the appearance of a portable electronic device according to Embodiment 7 of the present invention.

  The basic configuration of the present embodiment is the same as that of the first embodiment. In the present embodiment, the mounting structure of the solar cell panel 6 is different from that of the first embodiment. Specifically, the movable part 3 on which the solar cell panel 6 is mounted is configured as a separate body separated from the display part 3d.

  With such a configuration, the direction of the light receiving surface of the solar cell panel 6 can be controlled regardless of the use state of the display body 3d, and desired charging can be performed even while the portable electronic device 1 is in use. As a result, the power generation efficiency can be further improved.

  Moreover, the assembly with respect to the movable part 3 of the solar cell panel 6 becomes easy, and the low-cost portable electronic device 1 can be realized.

  The present embodiment can be similarly applied to the portable electronic device 1 of the first to sixth embodiments.

<Eighth embodiment>
FIG. 11 is a partially exploded perspective view showing an outline of the appearance of a portable electronic device according to Embodiment 8 of the present invention.

  The basic configuration of the present embodiment is the same as that of the first embodiment. In the present embodiment, the mounting structure of the solar cell panel 6 is different from that of the first embodiment. Specifically, the panel plate 6p on which the solar cell panel 6 is mounted is prepared as a separate body separated from the movable portion 3 on which the display surface is formed, and the panel plate 6p is fixed to the movable portion 3 by screwing. Thus, the movable part 3 having the solar battery panel 6 mounted thereon is provided.

  In order to screw the panel plate 6p to the movable portion 3, screw holes 3h are formed in the movable portion 3 and screw holes 6h are formed in the panel plate 6p so as to correspond to each other. The screw part 3h and the screw hole 6h are fastened to each other by a fastening screw to constitute the movable part 3 on which the solar cell panel 6 is mounted. In addition, it is possible to take various assembly structures, such as adhesion | attachment, a hook_and_loop | surface fastener, a magnet, a button, and a fitting, without using screwing.

  The movable portion 3 is appropriately provided with a connection terminal 6e for connecting an electrode terminal (not shown) of the solar cell panel 6. The structure of the connection terminal 6e can take various connection configurations such as a connector method and a lead wire direct attachment method.

  The present embodiment can be similarly applied to the portable electronic device 1 of the first to sixth embodiments.

<Embodiment 9>
FIG. 12 is a partially exploded perspective view showing an outline of the appearance of a portable electronic device according to Embodiment 9 of the present invention.

  The basic configuration of the present embodiment is the same as that of the first embodiment. In the present embodiment, the mounting structure of the solar cell panel 6 is different from that of the first embodiment. Specifically, a panel plate 6p on which the solar cell panel 6 is mounted is prepared as a separate body separated from the movable portion 3 having a display surface, and the movable portion is formed by elastic frame portions 6f provided at both ends of the panel plate 6p. By sandwiching and fixing 3, the movable portion 3 is provided with the solar cell panel 6.

  In order to hold the movable portion 3 between the panel plates 6p, the elastic frame portion 6f is made of a metal plate having an appropriate elasticity or a synthetic resin having elasticity.

  The movable portion 3 is appropriately provided with a connection terminal 6e for connecting an electrode (not shown) of the solar cell panel 6. The configuration of the connection terminal 6e can be the same as that in the eighth embodiment.

  The present embodiment can be similarly applied to the portable electronic device 1 of the first to sixth embodiments.

It is a perspective view which shows the external appearance outline | summary of the portable electronic device which concerns on Embodiment 1 of this invention. It is a block diagram which shows the outline | summary of the structural block of the portable electronic device which concerns on Embodiment 1 of this invention. It is a flowchart explaining the control flow of the movable part of the portable electronic device which concerns on Embodiment 1 of this invention, and a photon detection part. It is a block diagram which shows the outline | summary of the structural block of the portable electronic device which concerns on Embodiment 2 of this invention. It is a flowchart explaining the azimuth | direction detection of the portable electronic device which concerns on Embodiment 2 of this invention, and the control flow of a movable part. It is a perspective view which shows the external appearance outline | summary of the portable electronic device which concerns on Embodiment 3 of this invention. It is explanatory drawing explaining operation | movement of the portable electronic device which concerns on Embodiment 4 of this invention, (A) is a perspective view which shows an external appearance outline, (B) is a side view which shows a principal part transparently, (C ) Is a bottom view. It is explanatory drawing explaining the outline | summary of the portable electronic device which concerns on Embodiment 5 of this invention, (A) is the front view which looked at the portable electronic device of the closed state from the opposite side to the opening / closing rotation axis | shaft, (B) is a right side view, (C) is a bottom view, and (D) is a bottom view showing an internal mechanism. It is explanatory drawing explaining the external appearance outline | summary and usage example of the portable electronic device which concerns on Embodiment 6 of this invention, (A) is a side view in the closed state, (B) is the perspective view which shows a usage example FIG. It is a perspective view which shows the external appearance outline | summary of the portable electronic device which concerns on Embodiment 7 of this invention. It is a partially exploded perspective view which shows the external appearance outline | summary of the portable electronic device which concerns on Embodiment 8 of this invention. It is a partially exploded perspective view which shows the external appearance outline | summary of the portable electronic device which concerns on Embodiment 9 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable electronic device 2 Main-body part 3 Movable part 4 Opening / closing rotation axis 4s Fixed bearing 4r Rotation axis 5 Rotation control part 5m Servo motor 6 Solar cell panel 7 Light receiving element 8 Cross rotation axis 9 Rotating leg 9m Servo motor for rotating part 12 Supporting main leg part 13 Supporting auxiliary leg part 14 Eccentric vibration part 21 Charging circuit 22 Charger 23 Central processing unit (CPU)
24 function unit 25 light detection unit 26 program memory 27 GPS azimuth detection unit 28 solar position calculation unit Axa, Axb, Axc rotation axis

Claims (11)

In a foldable portable electronic device comprising a main body part incorporating a functional part and a movable part on which a solar cell panel is mounted and covers the main body part,
A light detection unit for detecting a direction in which the amount of light applied to the solar cell panel is large;
A portable electronic device, comprising: a rotation control unit configured to rotate the movable unit so that a light receiving surface of the solar cell panel is directed in a direction in which the light amount is large.   The portable electronic device according to claim 1, wherein the light detection unit detects the light amount using a light receiving element of a solid-state imaging device provided in the movable unit.   The portable electronic device according to claim 1, wherein when the movable part is closed, a gap for clamping is formed between the main body part and the movable part. In a foldable portable electronic device comprising a main body part incorporating a functional part and a movable part on which a solar cell panel is mounted and covers the main body part,
A GPS azimuth detection unit that detects the azimuth in which the main body unit is disposed and provided in the main body unit;
A solar position calculator that calculates the position of the sun from date information, time information, and the orientation;
A portable electronic device comprising: a rotation control unit configured to control rotation of the movable unit so that a light receiving surface of the solar cell panel is directed toward the sun.   The portable electronic device according to any one of claims 1 to 4, wherein the main body portion and the movable portion are connected by a folding opening / closing rotation shaft.   The portable electronic device according to claim 5, wherein the main body portion and the movable portion are connected by a cross rotation shaft that intersects the opening / closing rotation shaft.   The rotating leg for rotating the main body in a direction parallel to the back of the main body is provided to engage with the back of the main body. The portable electronic device described.   A main supporting leg provided on the back surface of the main body for supporting the main body in a direction parallel to the back; and a supporting sub leg for rotating the main body around the main supporting leg. The portable electronic device according to any one of claims 1 to 7, wherein the electronic device is portable.   The portable electronic device according to claim 8, further comprising an eccentric vibration portion corresponding to the supporting sub-leg portion.   The portable electronic device according to any one of claims 1 to 9, wherein a display unit that indicates an operation content of the functional unit is provided on the main body side of the movable unit.   The portable electronic device according to any one of claims 1 to 10, wherein the function of the functional unit is a telephone function.

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