KR20060107144A - Battery for wireless charge & universal wireless charger capable of charging it - Google Patents

Abstract

The present invention relates to a wireless rechargeable battery, comprising: a secondary battery cell installed inside a body; A secondary coil installed inside the body to receive a magnetic field generated from the primary coil of the wireless charger; And an electrical circuit for charging the secondary battery cell with an induced current received from the secondary coil or protecting the secondary battery cell.

Wireless, Charger, Universal, Secondary Battery, Primary Coil, Secondary Coil, Shielding, Induction Current

Description

Wireless rechargeable battery and universal wireless charger that can charge it {Battery for wireless charge & universal wireless charger capable of charging it}

1 is a perspective view schematically showing the configuration of a wireless rechargeable battery according to a preferred embodiment of the present invention.

Figure 2 is a schematic diagram showing a universal wireless charger according to a preferred embodiment of the present invention.

3 is a view showing a state of use of the universal wireless charger of FIG.

4 is a view showing another use state of the universal wireless charger of FIG.

5 is a perspective view schematically showing a universal wireless charger according to another preferred embodiment of the present invention.

Figure 6 is a schematic diagram showing a universal wireless charger according to another preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100.Wireless rechargeable battery 110 ... Body 120 ... Secondary battery cell

130 ... primary coil 140 ... electrical circuit 150 ... shield

160 ... core member 200 ... charger 210 ... secondary coil

220 ... case 230 ... electrical circuit 240 ... cover

250 ... shielding member

The present invention relates to a wireless rechargeable battery and a universal wireless charger capable of charging the same, and more particularly, the same size as that of a conventional standard square or cylindrical battery whose structure is improved to enable wireless charging using an electromagnetic induction phenomenon. It relates to a wireless rechargeable battery and a wireless charger capable of charging the same.

In general, a device such as a mobile phone, a notebook, etc. has a storage battery therein is configured to be used while the user moves. However, such a portable mobile device includes a separate power storage device for power storage of a storage battery, and the power storage device is connected to a general use power source to provide a storage current to the storage battery of the portable mobile device. On the other hand, in order for the power storage device to provide the storage current to the storage battery of the portable mobile device, the charging matrix constituting the power storage device and the storage battery in the mobile mobile device must be electrically connected. In order to selectively connect the battery in the charging matrix and the portable mobile device as necessary, separate contact terminals have been configured in the charging matrix and the portable mobile device, respectively. Therefore, when charging the storage battery in the portable mobile device, the contact terminal of the portable mobile device and the contact terminal of the charging mother must be interconnected.

However, the conventional method of configuring the contact terminals in the portable mobile device and the charging mother as described above, in addition to the problem that the contact terminals protrude to the outside and look aesthetically unsightly, the contact terminals may be contaminated with this foreign material and thus the contact state is poor. There are many concerns, and in some cases, a short circuit may occur due to user's carelessness and the battery may be completely discharged.

In order to solve this problem, a method has been developed in which a rechargeable battery of a mobile mobile device can be electrically contacted with a charging mother to charge energy of the charging mother.

In the non-contact charging method, a primary circuit of a transformer operating at a high frequency is formed in a charging matrix, and a secondary circuit is configured in a battery side, that is, in a portable mobile device, whereby the current of the charging matrix, that is, energy is stored in the mobile battery by magnetic coupling. In the way it is provided. Contactless charging with magnetic coupling is already widely used in some applications (eg electric toothbrushes, electric shavers, etc.). However, if you want to apply it to portable mobile devices such as mobile phones, MP3 players, MD players, Walkmans, and notebook computers, the volume and weight added to the mobile mobile device must be specially small, and the battery of the battery in the mobile mobile device in the contactless state is required. It should be possible to know the discharge state.

However, according to the conventional wireless charging principle, since the secondary coil must be embedded inside the battery, it is necessary to change the shape and structure of the battery, which has been used until now, so that the conventional battery can no longer be used. Since the shape and structure of the device suitable for the shape and structure of the need to be changed, the loss was too big problem.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems, and a wireless storage battery and a battery and a battery thereof, which can maintain the same shape without changing the shape and appearance of a conventional standard square, cylindrical, or disc secondary battery, The purpose is to provide a charger that can wirelessly charge the installed device.

Wireless charging battery according to a preferred embodiment of the present invention for achieving the above object, the secondary battery cell installed inside the body; A secondary coil installed inside the body to receive a magnetic field generated from the primary coil of the wireless charger; And an electrical circuit for charging the secondary battery cell with an induced current received from the secondary coil or protecting the secondary battery cell.

Preferably, the wireless rechargeable battery according to the present invention further includes a shielding member located between the secondary battery cell and the secondary coil.

Preferably, the wireless rechargeable battery according to the present invention further includes a core member located at the center of the secondary coil.

Preferably, the body is a rectangular or cylindrical or disc shaped structure with known battery specifications.

Universal wireless charger according to a preferred embodiment of the present invention for achieving the above object, has a known battery standard, provided with a wireless charging battery provided with a secondary coil or an accommodating part for accommodating the device equipped with the battery. case; A primary coil installed in the housing to transfer induced electromotive force to the secondary coil; And an electrical circuit installed in the case to supply power to the primary coil.

Preferably, the universal wireless charger according to the present invention further includes a cover installed on the case to selectively open and close the open end of the housing.

Preferably, the universal wireless charger according to the present invention further comprises a shielding member provided on the wall of the case.

Universal wireless charger according to another embodiment of the present invention for achieving the above object, in the universal wireless charger for charging a wireless rechargeable battery provided with a secondary coil, so as to transfer the induced electromotive force to the secondary coil A pad provided with a primary coil; And an electrical circuit for supplying power to the primary coil.

Preferably, the universal wireless charger according to the present invention further comprises a core member provided in the center of the primary coil.

Hereinafter, a wireless rechargeable battery according to a preferred embodiment of the present invention and a universal wireless charger for charging the same will be described in detail with reference to the accompanying drawings.

Various embodiments of the present invention, their advantages and features will be apparent from the following detailed description, some of which are apparent to those skilled in the art by reference to the following detailed description of the invention and by reference to the drawings or by the practice of the invention. Will lose. The advantages and features of the invention are realized and attained by means, procedures and combinations particularly pointed out in the appended claims and their equivalents.

In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and is shown by way of illustration of specific embodiments in which the invention may be practiced. The following examples are described in sufficient detail to enable those skilled in the art to practice the invention, and other embodiments may be used. In addition, it should be understood that various structural changes may be made without departing from the scope of the present invention. Therefore, this detailed description is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims and their equivalents. In the description of the present invention, "vertical", "horizontal", "side", "up", "bottom", "rising", "falling", etc., refer to the position of the wireless charger in the context of the drawings and description. It should be regarded in a relative sense, not in its absolute sense.

1 is a perspective view schematically showing the configuration of a wireless rechargeable battery according to a preferred embodiment of the present invention.

Referring to FIG. 1, the wireless rechargeable battery 100 according to the present embodiment may include a secondary battery cell 120 installed inside the body 110 and a primary coil of a predetermined charger 200 (see FIG. 2). The secondary coil 130 installed in the body 110 and the induced current received from the secondary coil 130 are charged in the secondary battery cell 120 so as to receive the induced electromotive force from the magnetic field generated by the 210. An electrical circuit 140 is provided to protect the primary battery cell 120 itself.

In the wireless rechargeable battery 100 according to the present exemplary embodiment, a shielding member 150 may be selectively provided between the secondary battery cell 120 and the secondary coil 130. The core member 160 is preferably located at the center.

The body 110 preferably has the same size as a known battery standard, the electrical function and characteristics are configured the same as that of the conventional. Thus, the body 110 should be interpreted as including any shape that is compatible with conventional ones, such as square or cylindrical, disk-shaped.

The secondary battery cell 120 may be, for example, inside a body 110 such as a nickel-cadmium secondary battery, a nickel ion secondary battery, a nickel polymer secondary battery, a lithium ion secondary battery, or a lithium polymer secondary battery. It should be interpreted as including all secondary battery cells having a predetermined size and capacity that can be installed. In addition, the secondary battery cell 120 also includes a source that can be used as a power supply, such as a coffee sheet (capacitor).

The secondary coil 130 is a structure that can receive the induced electromotive force from the primary coil 210. The secondary coil 130 has a winding structure suitable for the capacity of the secondary battery cell 120 and the primary coil 210, of course.

The electrical circuit 140 includes a circuit for charging the secondary battery cell 120 with an induced current received from the secondary coil 130, and a circuit for protecting the secondary battery cell 120 itself. And other circuitry for displaying and controlling the state of charge of the battery itself.

In the shielding member 150, the induced electromotive force received from the secondary coil 130 adversely affects the secondary battery cell 120 or the electric circuit 140, or conversely, the secondary battery cell 120 or the electric circuit 140. Electromagnetic field generated from) is to prevent Electro Magnetic Interferece (EMI) such as adversely affecting the secondary coil 130, and includes all possible materials capable of exerting such a function.

The core member 160 reinforces the reception of the induced electromotive force of the secondary coil 130, and may employ a core material used for general electromagnetic induction.

Figure 2 is a schematic diagram showing a universal wireless charger according to a preferred embodiment of the present invention.

Referring to FIG. 2, the universal wireless charger 200 according to the present exemplary embodiment has a hollow cylindrical structure in which an accommodating part 222 capable of storing a wireless rechargeable battery 100 provided with a secondary coil 130 is formed. To supply power to the case 220 and the primary coil 210 and the primary coil 210 installed in a predetermined form in the accommodating part 222 so as to transfer the induced electromotive force to the secondary coil 130. In order to provide an electrical circuit 230 installed in the case 220.

The universal wireless charger 200 is preferably provided with a cover 240 on the case 220 to selectively open and close the open end of the housing 220, the shielding member 250 on the wall surface of the case 220 Is preferably installed.

The case 220 accommodates a predetermined number of batteries 100 that can be wirelessly charged, or as shown in FIG. 3, a device itself such as a flashlight 260 equipped with a wireless rechargeable battery 100 is mounted thereon. Alternatively, as shown in FIG. 4, the mobile phone 270 equipped with the wireless rechargeable battery 100 may be mounted. In the present embodiment, the case 220 has a cylindrical structure, but may be modified into various cylindrical structures having the housing 222. As described above, it is preferable that the accommodating part 222 forms a cylindrical shape in which the conventional wireless rechargeable battery, such as the wireless rechargeable battery 100 of FIG. 1, can be accommodated.

The primary coil 210 is installed inside or on the wall of the case 220 to wrap the battery 100 in a state where the wireless charging battery 100 is accommodated in the accommodating part 222. The primary coil 210 may be adjusted to match the capacity of the batteries to be charged by lengthening their lengths or by connecting a plurality of unit coils in parallel. Meanwhile, as shown in FIG. 5 schematically illustrating a universal wireless charger according to another embodiment of the present invention, the primary coil 210 may be located under the battery 100.

The electric circuit 230 includes a configuration in which the primary coil 210 generates induced electromotive force by receiving power from the outside.

The cover 240 is hinged to the open end of the case 220 for storing the wireless rechargeable battery 100 in the housing 222, and seals the housing 222 of the case 220 in the charging operation. Has the function of

The shielding member 250 is for protecting the universal wireless charger from electromagnetic interference or electromagnetic interference.

Figure 6 is a schematic diagram showing a universal wireless charger according to another embodiment of the present invention.

Referring to FIG. 6, the universal wireless charger 300 according to the present embodiment is a so-called pad type charger, and the two of the wireless rechargeable batteries 100 for charging the wireless rechargeable battery 100 described in FIG. A pad 320 provided with a primary coil 310 for generating an electromagnetic field so as to transfer induced electromotive force to the primary coil 130, an electrical circuit 330 for supplying power to the primary coil 310, and a primary A core member 340 provided at the center of the coil 310 is provided.

When the wireless charging battery 100 is located in the pad type wireless charger 300, the magnetic line is moved in the direction of the arrow of FIG. 5, and the charging of the battery 100 is completed.

As described above, the wireless rechargeable battery and the universal wireless charger for charging the same according to the present invention have the following effects.

First, by adopting a wireless rechargeable battery of the same type as the size of a conventional battery has the effect that can be used interchangeably without changing the structure of the mounting portion to be mounted.

Second, since the universal wireless charger according to the present invention can charge not only the wireless rechargeable battery but also the electronic device equipped with the battery, the charging operation becomes easy.

The above detailed description is for illustrative purposes only and is not intended to limit the scope of the invention. Many other embodiments will be apparent to those skilled in the art upon reading or understanding the above detailed description. It should be noted that the embodiments discussed in other parts of the detailed description and discussed with reference to other figures may be combined to form additional embodiments of the present invention. Accordingly, the scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

Claims (9)

A secondary battery cell installed inside the body; A secondary coil installed inside the body to receive a magnetic field generated from the primary coil of the wireless charger; And And an electrical circuit for charging the secondary battery cell with an induced current received from the secondary coil or protecting the secondary battery cell. The method of claim 1, And a shielding member positioned between the secondary battery cell and the secondary coil. The method according to claim 1 or 2, And a core member positioned at the center of the secondary coil. A case having a known battery standard and provided with a wireless rechargeable battery provided with a secondary coil or an accommodating part for accommodating a device equipped with the battery; A primary coil installed in the housing to transfer induced electromotive force to the secondary coil; And And an electrical circuit installed in the case to supply power to the primary coil. The method of claim 4, wherein And a cover installed in the case so as to selectively open and close the open end of the accommodating part. The method according to claim 4 or 5, The universal wireless charger further comprises a shielding member provided on the wall of the case. The method according to claim 1 or 2, The body is a universal wireless charger, characterized in that the rectangular or cylindrical or disk with a known battery standard. In the universal wireless charger for charging a wireless rechargeable battery provided with a secondary coil, A pad provided with a primary coil to transmit induced electromotive force to the secondary coil; And And an electrical circuit for supplying power to the primary coil. The method of claim 8, The universal wireless charger further comprises a core member provided in the center of the primary coil.

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