KR100876441B1 - Portable Electric Device Charging System - Google Patents

Abstract

The present invention relates to a portable electric device charging system which performs charging by randomly arranging the portable electric device on a charging device;

Portable electric device charging comprising a portable electric device having a pair of charging terminals connected to the positive and negative terminals of the rechargeable battery, and a power supply terminal for applying charging power to the charging terminal of the portable electric device. In the system;

A power supply unit for supplying power to each of the power terminals, and the positive terminal, the negative terminal, and the insulated terminal unit cells of the respective power terminals are arranged in a row to form terminal terminals, respectively, between the positive terminal string and the negative terminal string. A power scanning unit for switching the supply of power to each terminal column such that the columns are arranged, and a control unit controlling to stop scanning and to start charging when the charging terminal of the portable electric device is energized by the positive terminal and the negative terminal. Become;

Wherein the power scanning unit scans the supply of power so that each terminal string is shifted across the neighboring terminal strings, but repeats scanning by changing the shift orientation when charging is not started;

The components of the charging device are simplified, and portable electric devices can be configured in a compact size, and the short circuit between power terminals of the charging device can be prevented.

Description

Charging system for portable electric device

1 is a conceptual diagram showing an example of a conventional portable electric device charging system

FIG. 2 is a block diagram illustrating additional components in each unit cell of FIG. 1. FIG.

3 is a block diagram showing another example of a conventional portable electric device charging system

4 is a block diagram illustrating a portable electric device charging system according to the present invention.

5 is a power terminal plan view showing a power scanning process according to an embodiment of the present invention

6 is a plan view showing an example of the specification of the charging terminal in the embodiment of FIG.

7 is a plan view showing an example of the contact of the charging terminal in the embodiment of FIG.

8 is a power terminal plan view showing a power scanning process according to another embodiment of the present invention

9 is a plan view showing an example of the specification of the charging terminal in the embodiment of FIG.

<Explanation of symbols for main parts of the drawings>

100: charging device 110: power terminal

111: positive electrode terminal 112: negative electrode terminal

113: insulated terminal 116: anode terminal string

117: cathode terminal string 118: insulated terminal string

120: power supply unit 125: power scanning unit

130: control unit 200: portable electric device

210: charging terminal 215: rechargeable battery

220: rectifier element

The present invention relates to a charging system for a portable electric device, and the charging is performed even if the charging terminals of the portable electric device are arranged on the charging device, and the components of the charging device are simplified and the portable electric device can be configured in a compact size. The present invention relates to a portable electric device charging system having a structure capable of preventing a short circuit between power supply terminals of a charging device.

In general, a portable electric device such as a mobile terminal, a notebook computer, or the like is equipped with a rechargeable battery as a power supply device. The rechargeable battery is charged using an exclusive charger such as a cradle or an adapter, which is a commercial charger. However, such a conventional charging system has a problem in that it is cumbersome to contact the former terminal of the charging device and the charging terminal of the portable electric device, and frequent contact is repeated, thereby increasing the contact resistance between the terminals, thereby preventing charging smoothly.

In order to solve this problem, development of a charging system in which charging is performed even if the charging terminal of a portable electric device is arranged on the charging device has been attempted.

As an example, a charging system of a charging terminal random arrangement method as shown in FIG. 1 is disclosed. Referring to FIG. 1, in the charging system of the present example, the unit cells of the power supply terminal 10 of the charging device are arranged in a matrix form, and the charging terminal 14 of the portable electric device 12 is disposed on the power supply terminal 10. If arranged arbitrarily, each power supply terminal 10 is configured to sense the load 16 in the unit cell and selectively apply power to the unit cell to which the load 16 is in contact. However, in such a charging system, as illustrated in FIG. 2, each unit cell of the power supply terminal 10 detects contact and power characteristics of the load 16 side and a power supply unit in each unit cell. It is accompanied by a switch device 22 for selectively connecting 20). Therefore, since the sensing unit 18 and the switch device 22 having a relatively complicated circuit configuration are required for each unit cell independently, there is a problem in that the device is complicated and it is difficult to put to practical use.

As another example, a charging device has been developed that performs charging without sensing a contact of a load on the power terminal side of the charging device. In the charging system of the present example, as shown in FIG. 3, the power terminals 32 of the charging device 30 are arranged in a matrix form with a predetermined gap, and the negative electrode and the positive electrode are mixed with each power terminal 32. And a charging terminal group formed of a plurality of charging terminals 42 in contact with the power supply terminal 32 on the portable electric machine 40 side, and the respective charging terminals 42 are connected to each other of the rechargeable battery 44. The positive electrode is connected to the rectifier 46 in the forward direction, and the negative electrode of the rechargeable battery 44 is connected to the negative electrode in the reverse direction. In such a charging system, by providing a plurality of charging terminals 42 on the portable electric device 40 side, there is an advantage that does not need to have a device for detecting a load for each power terminal 32 of the charging device 30 side, As the portable electric device 40 includes a plurality of charging terminals 42, the aesthetics are not good, and the volume of the rechargeable battery side is increased by using a large number of rectifying elements 46. In addition, according to the arrangement of the negative electrode and the positive electrode of the power supply terminal 32, there is a problem in that charging does not occur when the charging terminal 42 contacts only the power supply terminal 32 of one pole.

On the other hand, the charging system as described above, according to the volumetric limitation of the charging device, the gap between the power supply terminal on the charging device side is fine, it is likely that a short is generated in the charging device side even a small conductor.

The present invention has been proposed in order to solve the above problems, and a plurality of charging terminals are provided on the charging device side, but it is not necessary to include a sensing unit for detecting contact and power characteristics of the load side at each charging terminal. It can be simplified, and it is not necessary to have a large number of charging terminals of portable electric devices, so it can be configured compactly without harming aesthetics, and any charging terminal with a new structure that can prevent short between power terminals on the charging device side An object of the present invention is to provide a charging system for portable electric devices in an array method.

Portable electric device charging device of the present invention for achieving the above object is a portable electric device having a pair of charging terminals connected to the positive and negative electrodes of the rechargeable battery, respectively, and charging power to the charging terminal of the portable electric device A portable electric device charging system comprising a charging device having a power supply terminal for applying; A power supply unit for supplying power to each of the power terminals, and the positive terminal, the negative terminal, and the insulated terminal unit cells of the respective power terminals are arranged in a row to form terminal terminals, respectively, between the positive terminal string and the negative terminal string. A power scanning unit for switching the supply of power to each terminal column such that the columns are arranged, and a control unit controlling to stop scanning and to start charging when the charging terminal of the portable electric device is energized by the positive terminal and the negative terminal. Become; The power scanning unit scans a supply of power so that each terminal string is shifted across a neighboring terminal string, but if charging is not started, the scanning is changed by changing the shift orientation.

At this time, each of the pair of charging terminals may be connected to the rectifier in the forward direction to the positive terminal of the rechargeable battery, the rectifier is connected to the negative terminal of the rechargeable battery in the reverse direction.

In one embodiment, each unit cell of the power supply terminal is formed in a quadrangle, each power supply unit cell is arranged in a matrix form, the power scanning unit in the longitudinal direction or the anode terminal string, cathode terminal string, insulation terminal string It is configured to shift by shifting the orientation in the transverse direction.

In the present embodiment, the pair of charging terminals has a standard in which a portion of each charging terminal is in contact with at least the power terminal unit cell of the compartment.

In addition, each unit cell of the power terminal is a square, the charging terminal is formed in a disk shape, and the distance between the pair of charging terminals in the diagonal length of the square circumscribed to the charging terminal minus the diameter of the charging terminal and The sum of the diameters of each charging terminal is greater than or equal to the sum of the diagonal lengths of two power terminal unit cells and the diagonal length of three squares with the gap side, and the distance between the charging terminals is the length and gap of the two sides of the power terminal unit cells. Is less than or equal to the sum of one length.

In another embodiment, each unit cell of the power terminal is formed in a hexagon, each power terminal unit cells are arranged in a honeycomb shape, the power scanning unit is a cathode terminal string, a cathode terminal string, an insulation terminal string 120 It is configured to shift by shifting the orientation in a selected one of the three diagonal directions having an orientation difference of °.

In the present embodiment, the pair of charging terminals has a standard in which a portion of each charging terminal is in contact with at least the power terminal unit cell of the compartment.

In addition, each unit cell of the power terminal is a regular hexagon, the charging terminal is formed in a disk shape, the sum of the distance between the pair of charging terminals and the diameter of each of the charging terminal and the two power terminal unit cells facing the side and It is equal to or greater than the longest diagonal length of the area including the gap around two power terminal unit cells, and the distance between the charging terminals is the shortest length and the length of one gap from one side to the other side of the two power terminal unit cells facing the side. Is less than or equal to the sum of.

Preferably, when the scanning of the power is stopped by the controller and charging is started, the control unit is configured to electrically insulate the power terminal unit cell in contact with the charging terminal from the other power terminal unit cells.

In addition, the power scanning unit performs power scanning on unit cells other than the unit cell of the power terminal in which the charging terminal contacts the charging terminal.

In this case, the electronic device may further include a magnet switch, a load sensor, or an optical sensor for detecting the power terminal unit cell in contact with the charging terminal.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and embodiments. Figure 4 is a block diagram illustrating a portable electric device charging system according to the present invention, Figure 5 is a plan view of the power terminal showing a power scanning process according to an embodiment of the present invention, Figure 6 is a charge in the embodiment of Figure 5 7 is a plan view illustrating an example of a specification of a terminal, FIG. 7 is a plan view illustrating an example of contact of a charging terminal in the embodiment of FIG. 5, and FIG. 8 is a plan view of a power terminal showing a power scanning process according to another embodiment of the present invention. 9 is a plan view showing an example of the specification of the charging terminal in the embodiment of FIG.

First, referring to FIG. 4, the portable electric device charging system of the present invention includes a charging device 100 and a portable electric device 200. The portable electric device 200 includes a conventional electric device having a rechargeable battery 215, for example, a mobile terminal such as a mobile phone or a PDA, a notebook, an electric shaver, and the like. A pair of charging terminals 210 are respectively connected to the positive electrode and the negative electrode of the rechargeable battery 215 of the portable electric device 200. At this time, in order to perform the charging without considering the polarity of the charging terminal 210, as shown in Figure 4, each of the pair of charging terminals 210, the rectifier element 220 in the forward direction to the positive electrode of the rechargeable battery 215 May be connected, and the rectifier 220 may be connected to the negative electrode of the rechargeable battery 215 in a reverse direction to be connected to the rechargeable battery 215. On the other hand, in order to help a clear understanding of the present invention, the following embodiments will be described for the essential configuration for the charging of the components of the charging device 100 and the portable electric device 200, rectification circuit, smoothing circuit, frequency converter, etc. Additional components apparent to those skilled in the art will be omitted.

The charging device 100 has a power terminal group having a structure in which a plurality of power terminal 110 unit cells are arranged. The power supply terminal 110 may be arranged in a matrix form as described below, or may be arranged in a honeycomb form. Of course, it can also have a variety of arrangements. The power supply terminal 110 includes a positive electrode terminal 111, a negative electrode terminal 112, and an insulating terminal 113. In addition, each power terminal 110 is spaced apart by a predetermined gap. Referring to the exemplary embodiment shown in FIG. 5, the positive electrode terminal 111, the negative electrode terminal 112, and the insulating terminal 113 are arranged in a horizontal, vertical, or diagonal direction in the power supply terminal group, respectively, to form a positive electrode terminal ( 116, the cathode terminal string 117, and the insulating terminal string 118 are formed. In addition, each power terminal sequence is arranged such that the insulation terminal sequence 118 is positioned between the anode terminal sequence 116 and the cathode terminal sequence 117 as shown. Therefore, the positive electrode terminal 111 and the negative electrode terminal 112 are spaced apart by the width of the insulating terminal 113 or more, and prevents the power terminal 110 of the charging device 100 from being shorted by a fine metal piece or the like.

In the present invention, each power terminal sequence is dynamically moved by the power scanning unit 125. The power scanning unit 125 uses the DC charging power supplied from the power supply unit 120 as shown in FIG. 5A, between the positive terminal 116 and the negative terminal 117. 118 is switched so as to be disposed. The insulating terminal string 118 cuts off both the positive electrode and the negative electrode power so that the positive electrode terminal string 116 and the negative electrode terminal string 117 are clearly insulated from each other. At this time, the control unit 130 controlling the power scanning unit 125 determines whether the closed circuit is configured by the rechargeable battery 215 of the portable electric device 200, and if both charging terminals 210 of the portable electric device 200 ) Does not come into contact with the anode terminal string 116 and the cathode terminal string 117, respectively, so that the closed circuit is not configured, as shown in FIG. 5B, each power terminal string is shifted to a neighboring column. For example, if charging is not started even after the shift in the horizontal direction is completed, such as shift shifting from (a) to (b) of FIG. 5, the control unit 130 determines that the power scanning unit 125 of FIG. As shown in (d) and (d), control is performed to perform vertical scanning. As illustrated, when a closed circuit is configured by the rechargeable battery 215 of the portable electric device 200 while performing power scanning, the controller 130 stops scanning power and starts charging. Preferably, the power scanning is performed by applying a weak current enough to detect the closed circuit configuration, and when the closed circuit configuration is detected during the power scanning, the power supply scanning is configured so that charging is attempted by supplying a normal charging current.

In this embodiment, the charging terminal 210 of the portable electric device 200 has a standard as shown in FIG. In one embodiment of the present invention, each power terminal 110 unit cell is formed in a square and arranged in a matrix form spaced apart from a predetermined gap. In addition, the charging terminal 210 is formed in a disk shape. In this case, the pair of charging terminals 210 has a standard in which a portion of each charging terminal 210 contacts at least a unit cell of a power terminal 110 of a compartment. In more detail, as shown in FIG. 6A, the distance between the pair of charging terminals 210 is obtained by subtracting the diameter of the charging terminal from the virtual square diagonal length circumscribed to the charging terminal 210. The sum of the diameters of each of the two charging terminals 210 is equal to or greater than the sum of the diagonal lengths of the two unit cells of the power supply terminal 110 and the diagonal lengths of the three squares having the gaps. If this is expressed as an expression, it is as follows. (In the following formula, the distance between the charging terminals = d, the diameter of one charging terminal = r, the length of the side of the power terminal unit cell = B, the gap between the power terminal unit cell = C)

In addition, the distance between the two charging terminal 210 is less than or equal to the sum of the length of the two sides of the unit cell of the power supply terminal 110 and the length of one gap. If this is expressed as an expression, it is as follows.

As shown in FIG. 7, the charging terminal 210 having the standard satisfying the formulas (1) and (2), when the charging terminal 210 is arbitrarily positioned on the power terminal matrix array, has both charging terminals 210 at least spaced apart. It is in contact with the unit cell.

On the other hand, in the above embodiment, the charging terminal 210 in direct contact with the power supply terminal 110 has been described as an example that the charge is made, the present invention, the power terminal 110 and the charging terminal 210 at a predetermined interval. Of course, the charge may be configured to be spaced apart by the capacitive coupling non-contact charging method.

8 illustrates a power scanning process according to another embodiment of the present invention. Referring to this, each unit cell of the power supply terminal 110 is formed in a regular hexagon, the power supply terminal group is configured such that each unit cell is arranged in a honeycomb form. In the honeycomb array, the positive electrode terminal 111, the negative electrode terminal 112, and the insulating terminal 113 are arranged in a line, and the insulating terminal string 118 is disposed between the positive electrode terminal string 116 and the negative electrode terminal string 117. This configuration is the same as the above embodiment. At this time, as shown in (a) to (f) of FIG. 8, the power scanning unit 125 shifts each power terminal string in any one of three diagonal directions having an alignment difference of 120 °. If not initiated it operates to shift the orientation by 120 °. As in the above embodiment, the controller 130 determines whether the closed circuit is configured by the rechargeable battery 215 of the portable electric device 200 at each step in which the shift operation is performed by the power scanning unit 125, and the closed circuit. If configured, stop scanning and perform charging.

In the present embodiment, the charging terminal 210 of the portable electric device 200 has a standard as shown in FIG. Each power terminal 110 is formed in a regular hexagon and arranged in a honeycomb form spaced apart from a predetermined gap. In addition, the charging terminal 210 is formed in a disk shape. In this case, the pair of charging terminals 210 has a standard in which a portion of each charging terminal 210 contacts at least a unit cell of a power terminal 110 of a compartment. More specifically, as shown in (a) of FIG. 9, the sum of the distance between the charging terminals 210 and the diameter of each of the charging terminals 210 is equal to two unit cells of the power supply terminal 110 facing the sides. This is greater than or equal to the longest diagonal length of the area including the gap around two unit cells. In addition, the distance between the two charging terminal 210 is as shown in (b) of FIG. 9, the length of the shortest length and one gap from one side to the other side of the two unit cells 110 facing the side Less than or equal to sum When the charging terminal 210 having a standard satisfying such a relationship is arbitrarily positioned on the power terminal honeycomb array, both charging terminals 210 are in contact with at least one unit cell.

When the portable electric device charging system of the present invention is used as a dedicated charging device for a specific device such as a cradle, the operation of the power scanning unit 125 stops when charging is performed, and the portable electric device 200 is on the charging device. When disconnected, the power scanning unit 125 may be configured to detect and reactivate it. However, the portable electronic device 200 may be operated to simultaneously charge various portable electric devices 200. To this end, when charging is started, the controller 130 controls the unit cells of the power terminal 110 in contact with the charging terminal 210 of the portable electric device 200 to be electrically insulated from the other unit cells. As an example, the electric power may be cut off from the unit cells positioned around the power terminal 110 in which charging is started, and may be insulated from the other unit cells. In addition, the power terminal 110 in contact with the charging terminal 210 allows normal charging to be performed, and the other power terminal 110 electrically partitioned is continuously scanned by the power scanning unit 125. In this case, the magnet switch may be used to detect the power terminal unit cell in contact with the charging terminal. For example, the charging terminal 210 is in contact with the power supply terminal 110 by magnetic force, and is configured to continuously perform power scanning on the power supply terminals 110 to which no magnetic force is applied. Also, in place of the magnet switch, when the charging terminal 210 is in contact with the power supply terminal 110, the load or pressure of the charging terminal 210 may be detected by a load sensor to insulate the charging terminals. Alternatively, the photo sensor may detect the contact or connection between the charging terminal 210 and the power terminal 110 to insulate the charging terminals and terminals to perform power scanning.

On the other hand, the present invention is not limited to the above-described embodiment, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention, having ordinary knowledge in the technical field to which the present invention belongs. It will be obvious to him.

As described above, in the portable electric device charging system according to the present invention, the positive electrode terminal and the negative electrode terminal are arranged in a line in a power terminal group in which a plurality of power terminal unit cells are arranged, and an insulating terminal string is arranged between the positive electrode terminal string and the negative electrode terminal string. It is arranged to be located. Then, the power scanning unit performs charging by determining whether the charging terminal of the portable electric device is in contact with each power terminal string being shifted in a horizontal, vertical, or diagonal direction. Therefore, charging can be performed in a simplified configuration without adding a complicated configuration to the charging device, and even if only one pair of charging terminals on the side of the portable electric device is configured, the portable electric device can be randomly arranged on the charging device to perform charging. It can be effective.

In addition, the power supply terminals on the charging device side to be charged are electrically partitioned from other power terminals, and the other power terminals can be continuously charged by performing power scanning, thereby simultaneously charging a large number of various electric devices. There is an effect that can be carried out.

Claims (13)

Portable electric device charging comprising a portable electric device having a pair of charging terminals connected to the positive and negative terminals of the rechargeable battery, and a power supply terminal for applying charging power to the charging terminal of the portable electric device. In the system; A power supply unit for supplying power to each of the power terminals, and the positive terminal, the negative terminal, and the insulated terminal unit cells of the respective power terminals are arranged in a row to form terminal terminals, respectively, between the positive terminal string and the negative terminal string. A power scanning unit for switching the supply of power to each terminal column such that the columns are arranged, and a control unit controlling to stop scanning and to start charging when the charging terminal of the portable electric device is energized by the positive terminal and the negative terminal. Become; And the power scanning unit scans the supply of power so that each terminal string is shifted across a neighboring terminal string, but repeats scanning by changing the shift orientation when charging is not started. The method of claim 1, Each of the pair of charging terminals, the rectifier device is connected to the positive terminal of the rechargeable battery in the forward direction, the rectifier device is connected to the negative terminal of the rechargeable battery in the reverse direction is connected to the rechargeable battery. The method of claim 1, Each unit cell of the power supply terminal is formed in a quadrangle, and each power supply unit cell is arranged in a matrix form, and the power scanning unit aligns the anode terminal string, the cathode terminal string, and the insulation terminal string in the longitudinal or transverse direction. Portable electrical device charging system, characterized in that configured to shift. The method of claim 3, wherein The pair of charging terminals is a portable electric device charging system, characterized in that a part of each charging terminal has a specification in contact with at least the power terminal unit cell of the compartment. The method of claim 3, wherein Each unit cell of the power supply terminal is square, and the charging terminal is formed in a disk shape, and the distance between each pair of charging terminals and each charge is obtained by subtracting the diameter of the charging terminal from the diagonal length of the square circumscribed to the charging terminal. The sum of the diameters of the terminals is greater than or equal to the sum of the diagonal lengths of two power supply unit cells and the diagonal length of three squares with side gaps, and the distance between the charging terminals is the length and the clearance of two sides of the power supply unit cells. Portable electric device charging system, characterized in that less than or equal to the sum of the lengths. The method of claim 1, Each unit cell of the power terminal is formed in a hexagon, each power terminal unit cells are arranged in a honeycomb shape, and the power scanning unit has an orientation difference of 120 ° in each of the anode terminal string, the cathode terminal string, and the insulation terminal string. The charging system of a portable electric device, characterized in that configured to shift by shifting the orientation in the selected one of the three directions having a diagonal. The method of claim 6, The pair of charging terminals is a portable electric device charging system, characterized in that a part of each charging terminal has a specification in contact with at least the power terminal unit cell of the compartment. The method of claim 6, Each unit cell of the power terminal is a regular hexagon, and the charging terminal is formed in a disk shape, the sum of the distance between the pair of charging terminals and the diameter of each charging terminal is two power terminal unit cells facing the side and the It is equal to or greater than the longest diagonal length of the area including the gap around two power terminal unit cells, and the distance between charging terminals is the shortest length and one gap length from one side to the other side of two power terminal unit cells facing the side. Portable electric device charging system, characterized in that less than or equal to the sum. The method of claim 1, When the power scanning is stopped by the control unit and charging is started, the portable electric device charging system is configured to electrically insulate the power terminal unit cell in contact with the charging terminal from other power terminal unit cells. The method of claim 9, The power scanning unit is a portable electric device charging system, characterized in that for performing the power scanning for the unit cells other than the power terminal unit cell is charged in contact with the charging terminal. The method of claim 9, And a magnet switch detecting a power supply unit cell in contact with the charging terminal. The method of claim 9, And a load sensor for detecting the power supply unit cell in contact with the charging terminal. The method of claim 9, And a light sensor for detecting a power supply unit cell in contact with the charging terminal.

Images