JP2011234514A - Charging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charging device capable of preventing heat evolution due to a foreign material such as a metallic coin, and of easily and efficiently charging any model of equipment while it can charge multiple models of equipment.SOLUTION: The charging device 100 includes a power supply coil 130 which generates electromagnetic induction between a power reception coil 510 electrically connected to a rechargeable battery and the power supply coil 130, and a main body part 120 which contains the power supply coil 130 and is provided with a charging surface 120a on which the surface of a portable terminal equipment 500 where the power reception coil 510 is placed is mounted when the battery charger 520 is charged. The charging surface 120a is an inclined or vertical face having an angle with respect to a horizontal face.

Description

  The present invention relates to a charging device that charges a rechargeable battery of a mobile terminal device.

  A mobile terminal device such as a mobile phone is provided with a rechargeable battery, and the mobile terminal device is driven by power supplied from the rechargeable battery. The rechargeable battery is charged by, for example, an AC charging device connected to an AC power source.

  As such a charging device, a device that employs a contactless charging method using electromagnetic induction by a coil has been proposed (for example, Patent Document 1 and Patent Document 2).

Japanese Patent Laid-Open No. 2005-6440 JP 2006-320047 A

  However, in the chargers disclosed in Patent Document 1 and Patent Document 2, a surface including the power feeding coil (hereinafter referred to as a charging surface) is a horizontal surface, or a pocket is formed around the charging surface. In such a form, there exists a possibility that foreign materials, such as metal coins, may remain in proximity to the feeding coil. In such a case, there is a problem that the foreign matter may generate heat due to energy from the power supply coil.

  In addition, the chargers disclosed in Patent Document 1 and Patent Document 2 can charge a plurality of types of devices. However, in the non-contact charging method, if the mobile terminal device is not placed with respect to the charging device so that the relative positional relationship between the feeding coil and the receiving coil is in the correct position, the charging efficiency is extremely reduced, and the charging time There was a problem that it took a very long time or could not be charged. In the chargers disclosed in Patent Document 1 and Patent Document 2 described above, the positions of the portable terminal device and the charging device are not sufficiently determined, and as a result, the relative positional relationship between the feeding coil and the receiving coil is determined. It was not always the correct position.

  The subject of this invention is providing the charging device which can prevent the heat_generation | fever by foreign materials, such as metal coins. A second problem of the present invention is to provide a charging device that can charge a plurality of types of devices easily and efficiently and efficiently charge any type of devices.

  The present invention proposes the following matters in order to solve the above problems. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this.

(1) The present invention is a charging device (100, 200) for charging a rechargeable battery (520) provided in a portable terminal device (500), and a power receiving coil (510) electrically connected to the rechargeable battery. ) And a charging surface on which the power receiving coil of the portable terminal device is placed when charging the rechargeable battery. And a main body (120) provided with (120a), and the charging surface is an inclined surface or a vertical surface having an angle with respect to a horizontal plane.

  According to this invention, the power feeding coil causes electromagnetic induction between the rechargeable battery and the power receiving coil electrically connected. A main-body part is equipped with the charging surface which mounts the surface in which the receiving coil of a portable terminal device is provided, including a feeding coil and charging a rechargeable battery. The charging surface is an inclined surface or a vertical surface having an angle with respect to a horizontal plane. Therefore, even if a foreign object is placed on the charging surface, it can be dropped by the dead weight of the foreign object, and heat generation by a foreign object such as a metal coin can be prevented.

(2) In the charging device (100, 200) according to (1), the present invention provides a regulating unit (140, 150, 200) that regulates the position of the portable terminal device (500) placed on the charging surface (120a). 250), and the restricting means is capable of changing a position for restricting the portable terminal device placed on the charging surface, and proposes a charging device.

  According to this invention, the regulating means can regulate the position of the mobile terminal device placed on the charging surface and change the position for regulating the mobile terminal device placed on the charging surface. Therefore, it becomes possible to charge a plurality of types of devices. Also, in any type of device, the portable terminal device can be moved to a position where it can be easily and efficiently charged.

(3) In the charging device (100, 200) according to (2), the present invention provides a scale (141c, 152a) corresponding to a position where the restricting means (140, 150) restricts the portable terminal device (500). ) Or a charging device characterized in that the regulating means has a display means for performing display in accordance with a position where the portable terminal device is regulated.

  According to the present invention, the charging device includes the scale according to the position where the restricting unit restricts the portable terminal device, or the display unit that performs display according to the position where the restricting unit restricts the portable terminal device. Therefore, it is possible to easily restrict the position of the mobile terminal device to a position where charging can be performed appropriately and efficiently.

(4) According to the present invention, in the charging device (100, 200) according to (2) or (3), the regulating means (140, 150, 250) is the portable device placed on the charging surface (120a). A lower end restricting portion (150, 250) for restricting a lower end position of the terminal device (500), and a side end restricting portion (140) for restricting both end positions of the mobile terminal device placed on the charging surface. The lower end restricting portion is capable of changing a vertical position of the mobile terminal device placed on the charging surface, and the side end restricting portion is located on a side of the mobile terminal device placed on the charging surface. The charging apparatus characterized by being able to change the position of a direction is proposed.

  According to this invention, a lower end control part controls the lower end position of the portable terminal device mounted on the charging surface. The side end regulating unit regulates the positions of both side ends of the mobile terminal device placed on the charging surface. The lower end restricting portion can change the vertical position of the mobile terminal device placed on the charging surface. The side end restricting portion can change the lateral position of the portable terminal device placed on the charging surface. Therefore, the power feeding coil and the power receiving coil can be correctly opposed to each other, and charging can be performed with good charging efficiency.

(5) The present invention provides the charging device (100, 200) according to (4), wherein the lower end restricting portion (150, 250) is at least about a foreign matter having a diameter of 3 cm or less placed on the charging surface (120a). Proposes a charging device that is configured to be dropped from the charging surface without being caught.

  According to this invention, the lower end restricting portion is formed so that at least a foreign matter having a diameter of 3 cm or less placed on the charging surface is dropped from the charging surface without being caught. Therefore, at least the metal coins that are generally distributed can be dropped from the charging surface, and the danger of heat generation and the like can be avoided.

(6) The present invention provides the charging device (100, 200) according to any one of (1) to (5), wherein the charging surface (120a) is formed smoothly. A charging device is proposed.

  According to this invention, the charging surface is formed smoothly. Therefore, even if a foreign object is placed on the charging surface, the foreign object can be naturally dropped.

(7) The present invention provides the charging device (100, 200) according to any one of (1) to (6), including a base portion (110) serving as a base of the charging device, and the main body The portion (120) is supported so as to be rotatable with respect to the base portion and to be able to hold a relative position between the main body portion and the base portion, and the main body portion with respect to the base portion. The charging device can be charged by changing the inclination of the charging surface (120a) by maintaining the relative position of the main body portion with respect to the base portion by relatively rotating the main body portion. is suggesting.

  According to this invention, a base part becomes the foundation of a charging device. The main body is supported so as to be rotatable with respect to the base and to be able to hold a relative position between the main body and the base. Charging can be performed by changing the inclination of the charging surface by rotating the main body portion relative to the base portion to maintain the relative position of the main body portion to the base portion. Therefore, the portable terminal device can be easily attached to and detached from the charging device, and the usability for the user can be improved.

(8) In the charging device (100, 200) according to any one of (1) to (7), the present invention relates to a state of charging the rechargeable battery (520) by the feeding coil (130). Accordingly, a charging device is proposed that includes a notification means (160) that notifies the user accordingly.

  According to this invention, an alerting | reporting means alert | reports to a user according to the charge condition to the rechargeable battery by a feeding coil. Therefore, the user can grasp the charging status and can position the portable terminal device using the regulating means at a position where the charging status is good.

(9) According to the present invention, in the charging device (100, 200) according to (8), the notification unit (160) appropriately charges the rechargeable battery (520) by the feeding coil (130). A charging device has been proposed, which is characterized by notifying the user when not informed.

  According to this invention, a notification means notifies that when the charging to the rechargeable battery by the power feeding coil is not properly performed. Therefore, the user can grasp that charging is not properly performed, and can reposition the mobile terminal device at a position where charging is possible.

(10) In the charging device (100, 200) according to (9), the present invention includes a charging efficiency detection unit (171) that detects charging efficiency of the rechargeable battery (520) by the power feeding coil (130). And the notification unit (160) proposes a charging device that notifies at least a state of high charging efficiency in accordance with a detection result by the charging efficiency detection unit.

  According to this invention, the charging efficiency detection means detects charging efficiency of the rechargeable battery by the power feeding coil. The notification means notifies at least the state of high charging efficiency according to the detection result by the charging efficiency detection means. Therefore, the user can easily place the portable terminal device at a position where charging efficiency is high.

  According to the present invention, heat generation due to foreign matters such as metal coins can be prevented. In addition, while it is possible to charge a plurality of types of devices, any type of device can be easily and efficiently charged.

It is a perspective view which shows the charging device 100 of 1st Embodiment. It is a figure which shows the state which inclined the charging surface 120a of the charging device 100. FIG. FIG. 3 is a perspective view showing a state where a mobile terminal device 500 is set on the charging device 100. It is the figure which looked at the state which set portable terminal device 500 to charging device 100 from the side. 3 is a block diagram illustrating functions of the charging device 100. FIG. It is a perspective view which shows the charging device 200 of 2nd Embodiment in the state similar to FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Note that the constituent elements in the present embodiment can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the present embodiment does not limit the contents of the invention described in the claims.

(First embodiment)
FIG. 1 is a perspective view illustrating a charging device 100 according to the first embodiment. In FIG. 1, the charging surface 120a of the charging device 100 is shown in a vertical state.
FIG. 2 is a diagram illustrating a state where the charging surface 120 a of the charging device 100 is inclined.
FIG. 3 is a perspective view illustrating a state where the mobile terminal device 500 is set in the charging device 100.
FIG. 4 is a side view of a state in which the mobile terminal device 500 is set in the charging device 100. In FIG. 4, the side end regulating portion 140 on the near side is not shown, and the positions of the power feeding coil 130 and the power receiving coil 510 inside are shown.
The charging device 100 according to the first embodiment includes a base portion 110, a main body portion 120, a power feeding coil 130, a side end restricting portion 140, a lower end restricting portion 150, and a notification lamp 160. The charging device 100 is a general-purpose charging device that can charge a plurality of types of mobile terminal devices 500.

  The base part 110 is a part that becomes a base of the charging device 100 and has a substantially rectangular parallelepiped shape. The base portion 110 has a protruding base side shaft portion 110a at the end thereof. The base unit 110 has a power supply line (not shown) and is connected to an AC power source.

The main body 120 has a charging surface 120a and a main body side shaft 120b.
The charging surface 120 a is a surface on which a power feeding coil 130 described later is included immediately below and a surface on which the power receiving coil 510 of the mobile terminal device 500 is provided is placed. The charging surface 120a is made of ABS resin, and the surface thereof is smooth. Further, the surface of the charging surface 120a may be subjected to surface treatment such as silicon resin coating or fluororesin coating to reduce the friction coefficient. By forming the charging surface 120a as described above, even if a foreign object other than the mobile terminal device 500, such as a coin, a clip, a staple of a stapler, or the like is erroneously placed on the charging surface 120a, , Fall down.
The main body side shaft portion 120 b is provided at the lower end portion of the main body portion 120. By supporting the main body side shaft portion 120b by the base side shaft portion 110a, the main body portion 120 is rotatable with respect to the base portion 110. In the present embodiment, the main body 120 can rotate within a range in which the charging surface 120a forms an angle of 55 degrees (a state in which the charging surface 120a faces upward) with respect to the lower surface of the base portion 110 to 90 degrees.

  In addition, a latch mechanism (not shown) is provided between the main body side shaft portion 120b and the base side shaft portion 110a so that the relative position between the main body portion 120 and the base portion 110 can be held at every predetermined angle. It has become. Therefore, the main body 120 is maintained in the state shown in FIG. 1 with the charging surface 120a as a vertical surface, or maintained in the state shown in FIG. 2 with the charging surface 120a as an inclined surface having an angle with respect to the horizontal plane. Is possible.

  The power feeding coil 130 causes electromagnetic induction with the power receiving coil 510 of the mobile terminal device 500. Energy is transmitted from the power supply coil 130 to the power reception coil 510 by electromagnetic induction generated between the power supply coil 130 and the power reception coil 510, and the rechargeable battery 520 of the portable terminal device 500 is charged.

The side end regulating unit 140 is a regulating unit that regulates the position in the left-right direction of the mobile terminal device 500 placed on the charging surface 120a and the position in the direction orthogonal to the charging surface 120a. The side end regulating part 140 includes a pair of left and right movable arm parts 141 and left and right support parts 142 on the left and right sides of the main body part 120.
The left and right movable arm portion 141 has a rail 141a, and is a substantially L-shaped member that is movable in the left-right direction when the rail 141a is guided by a guide (not shown) provided in the main body portion 120. . An uneven portion 141b is provided at a portion of the left and right movable arm portion 141 that extends in a direction orthogonal to the charging surface 120a. The uneven portion 141b has a shape for holding positions at regular intervals when the left and right support portions 142 are moved in a direction orthogonal to the charging surface 120a. Further, a scale 141c is formed in a portion of the left and right movable arm portion 141 that extends in a direction parallel to the charging surface 120a. This scale 141c may be a simple scale with equal intervals, or may be a scale with improper intervals in which the model name is displayed for each corresponding model. The user can adjust an appropriate amount of protrusion of the left and right movable arm portions 141 with respect to the mobile terminal device 500 using the scale 141c as a guide.

  The left-right support part 142 contacts the mobile terminal device 500 in the left-right direction of the mobile terminal device 500 placed on the charging surface 120a and the direction orthogonal to the charging surface 120a, and regulates the position thereof. The left and right support portions 142 are provided so as to be movable in a direction perpendicular to the charging surface 120a with respect to the left and right movable arm portions 141. The left and right support part 142 has a latch mechanism (not shown) that engages with the concave and convex part 141b and holds the position of the left and right support part 142 with respect to the left and right movable arm part 141 therein.

The lower end regulating unit 150 is a regulating unit that regulates the vertical position of the mobile terminal device 500 placed on the charging surface 120a. The lower end regulating portion 150 includes a support member 151 and a guide portion 152, one set on each of the left and right sides below the charging surface 120a.
The support member 151 is a columnar member protruding in a direction orthogonal to the charging surface 120a. The two left and right support members 151 are connected inside the main body 120, and are provided so as to be integrally movable in the vertical direction parallel to the charging surface 120a.
The guide part 152 guides the movement of the support member 151. The guide portion 152 is provided with a scale 152a. The scale 152a may be a simple equal scale, or may be an improperly spaced scale displaying model names for each corresponding model. The user can adjust the vertical position of the appropriate support member 151 with respect to the mobile terminal device 500 using the scale 152a as a guide.
Note that the lower end restricting portion 150 has a latch mechanism (not shown) that holds the position of the support member 151.

  Further, the lower end restricting portion 150 is set such that the dimension of the gap formed between the two support members 151 (dimension d1 shown in FIG. 1) exceeds 3 cm. In general, coins in circulation have a diameter of 3 cm or less. Therefore, even when a coin is placed on the charging surface 120a as a foreign object, it can be reliably dropped from the charging surface 120a. In addition, since the support member 151 has a cylindrical shape, it is possible to prevent foreign matter from remaining on the support member 151.

  The notification lamp 160 is notification means for performing various notifications to the user according to the charging status of the rechargeable battery 520 of the mobile terminal device 500 by the power supply coil 130.

FIG. 5 is a block diagram illustrating functions of the charging device 100.
The charging device 100 is provided with a charging control unit 170. In addition, the mobile terminal device 500 is provided with a power receiving coil 510 and a rechargeable battery 520.
The charging control unit 170 controls charging of the rechargeable battery 520 of the mobile terminal device 500 by the charging device 100. The charging control unit 170 includes a charging efficiency detection unit 171 to which a current line from an AC power source, a power feeding coil 130, and a notification lamp 160 are connected.

  The charging efficiency detection unit 171 detects charging efficiency of the rechargeable battery 520 of the mobile terminal device 500 by the power feeding coil 130. Here, as a method for detecting the charging efficiency performed by the charging efficiency detector 171, it is preferable to detect the change in the current value during charging. In addition, the ID of the mobile terminal device 500 is separately read, the position information of the side end regulating unit 140, the lower end regulating unit 150, etc. is read by a sensor (not shown), and the side end is positioned at a position corresponding to the model of the mobile terminal device 500. The charging efficiency may be obtained indirectly depending on whether the restriction unit 140 or the lower end restriction unit 150 is set.

  The notification lamp 160 blinks the lamp in red, for example, when it is determined from the charging efficiency detected by the charging efficiency detection unit 171 that charging of the rechargeable battery 520 by the feeding coil 130 is not properly performed. Etc., to that effect. Further, when it is determined from the charging efficiency detected by the charging efficiency detection unit 171 that the charging lamp 160 is in a state of high charging efficiency, the notification lamp 160 notifies the fact, for example, by lighting the lamp in green. I do. Note that the charging control unit 170 controls the operation of the notification lamp 160.

  As described above, according to the charging device 100 of the first embodiment, since the charging surface 120a is a vertical surface or an inclined surface, foreign matter can be easily dropped. In addition, since the charging surface 120a is a smooth surface, foreign objects are more likely to fall. Further, the lower end restricting portion 150 is set so that the size of the gap formed between the two support members 151 exceeds 3 cm, and the support member 151 has a cylindrical shape, so that the coin is charged as a foreign object. Even if it has been placed on the surface 120a, it can be reliably dropped from the charging surface 120a, and foreign matter can be prevented from staying on top of the support member 151.

  Furthermore, since the side end regulating unit 140 and the lower end regulating unit 150 have a movable unit that can move a position that regulates the mobile terminal device 500, any type of device can be charged while being able to charge a plurality of types of devices. Can be easily and efficiently charged. In addition, since the charging efficiency detector 171 and the notification lamp 160 are provided, a state in which the charging efficiency is good can be easily realized.

(Second Embodiment)
FIG. 6 is a perspective view showing the charging device 200 of the second embodiment in the same state as in FIG.
The charging device 200 of the second embodiment is the same as that of the first embodiment, except that the lower end restricting portion 150 is changed in place of the lower end restricting portion 150 in the first embodiment. Therefore, the same reference numerals are given to the portions that perform the same functions as those in the first embodiment described above, and repeated descriptions are omitted as appropriate.

  The lower end regulating unit 250 is a regulating unit that regulates the vertical position of the mobile terminal device 500 placed on the charging surface 120a. The lower end restricting portion 250 includes a pair of left and right support members 251 below the charging surface 120a. The support member 251 has a rotating shaft part 251a and an arm part 251b. The support member 251 is attached to the main body 120 so as to be rotatable about the rotation shaft portion 251a. The two left and right support members 251 are provided so as to be interlocked with each other via a gear, a link mechanism, or the like inside the main body 120, and rotate so that their rotational positions are axisymmetric on the left and right. Further, the lower end restricting portion 250 has a latch mechanism (not shown) that holds the position of the support member 251.

  Further, the lower end restricting portion 250 is set so that the dimension of the gap formed between the two support members 251 (dimension d2 shown in FIG. 6) exceeds 3 cm. Thereby, even when a coin is placed on the charging surface 120a as a foreign object, it can be reliably dropped from the charging surface 120a. Here, the dimension d2 shown in FIG. 6 is a dimension when the gap formed between the two support members 251 is the narrowest. Moreover, the upper part of the rotating shaft part 251a has a cylindrical surface shape, and it is possible to prevent foreign matter from remaining on the upper part of the support member 251.

  The support member 251 can change the position where the arm portion 251b supports the mobile terminal device 500 by rotating around the rotation shaft portion 251a. In 2nd Embodiment, the downward position of the portable terminal device 500 is controlled by the arm part 251b. Therefore, the vertical position of the mobile terminal device 500 can be easily changed by rotating the support member 251.

  As described above, according to the second embodiment, there is no need to provide a portion like the guide portion 152 in the first embodiment on the charging surface 120a. Therefore, the foreign matter can be more reliably dropped without being caught by the guide portion 152 and staying without dropping.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes designs and the like that do not depart from the gist of the present invention.

(Deformation)
(1) In the first embodiment, the scales 141c and 152a are provided and described as an example of assisting the position adjustment of the mobile terminal device 500. Not limited to this, for example, a sensor that detects the position of the mobile terminal device 500 is provided, and a liquid crystal display that displays a model name corresponding to the position of the side end regulating unit 140, the lower end regulating unit 150, and the like obtained by this sensor Display means using a display device or the like may be provided.

(2) In each embodiment, the charging device has been described with an example in which charging is performed using electric power obtained from an AC power source. For example, the charging device may be one that performs charging using another power source such as a fuel cell.

(3) In each embodiment, the side edge regulating part 140 and the lower edge regulating parts 150 and 250 have been described with an example of manually adjusting the position. For example, the position of the portable terminal device 500 is automatically adjusted to an optimum position by motor driving or the like, for example, by specifying a use model or using information obtained from the charging efficiency detection unit 171. You may do it.

  Each embodiment and modification may be used in appropriate combination, but detailed description is omitted.

DESCRIPTION OF SYMBOLS 100 Charging apparatus 110 Base part 110a Base side axial part 120 Main body part 120a Charging surface 120b Main body side axial part 130 Feeding coil 140 Side end regulating part 141 Left and right movable arm part 141a Rail 141b Concavity and convexity 141c Scale 142 Left and right support part 150 Lower end regulating part 151 Support Member 152 Guide Unit 152a Scale 160 Notification Lamp 170 Charge Control Unit 171 Charging Efficiency Detection Unit 200 Charging Device 250 Lower Limit Restriction Unit 251 Support Member 251a Rotating Shaft Unit 251b Arm Unit 500 Portable Terminal Device 510 Power Receiving Coil 520 Rechargeable Battery

Claims (10)

A charging device for charging a rechargeable battery provided in a mobile terminal device,
A power feeding coil for generating electromagnetic induction between the rechargeable battery and a power receiving coil electrically connected;
A main body including a charging surface that encloses the power feeding coil and places a surface on which the power receiving coil of the portable terminal device is provided when charging the rechargeable battery;
With
The charging surface is an inclined surface or a vertical surface having an angle with respect to a horizontal plane;
A charging device. The charging device according to claim 1,
Comprising regulation means for regulating the position of the mobile terminal device placed on the charging surface;
The restricting means is capable of changing a position for restricting the portable terminal device placed on the charging surface;
A charging device. The charging device according to claim 2,
A scale according to a position where the restriction means restricts the portable terminal device, or a display means for performing display according to a position where the restriction means restricts the portable terminal device;
A charging device. In the charging device according to claim 2 or 3,
The restricting means is a lower end restricting portion that restricts a lower end position of the portable terminal device placed on the charging surface;
A side end regulating portion that regulates both side end positions of the mobile terminal device placed on the charging surface;
Have
The lower end restricting portion is capable of changing the vertical position of the mobile terminal device placed on the charging surface,
The side end regulating portion is capable of changing a lateral position of the portable terminal device placed on the charging surface;
A charging device. The charging device according to claim 4,
The lower end restricting portion is formed so that at least a foreign matter having a diameter of 3 cm or less placed on the charging surface is dropped from the charging surface without being caught;
A charging device. In the charging device according to any one of claims 1 to 5,
The charging surface is formed smoothly;
A charging device. In the charging device according to any one of claims 1 to 6,
It has a base part that becomes the base of the charging device,
The main body is supported so as to be rotatable with respect to the base and to be able to hold a relative position between the main body and the base.
The main body portion is rotated relative to the base portion to maintain the relative position of the main body portion with respect to the base portion, thereby changing the inclination of the charging surface and charging can be performed.
A charging device. In the charging device according to any one of claims 1 to 7,
Comprising notifying means for notifying a user according to the charging status of the rechargeable battery by the power supply coil,
A charging device. The charging device according to claim 8, wherein
The notification means performs notification to that effect when charging of the rechargeable battery by the power supply coil is not properly performed,
A charging device. The charging device according to claim 9, wherein
Charging efficiency detecting means for detecting charging efficiency to the rechargeable battery by the power feeding coil;
The notification means notifies at least a state of high charging efficiency according to a detection result by the charging efficiency detection means;
A charging device.

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