KR100888197B1 - Portable charging apparatus - Google Patents

Abstract

Portable charging device according to the present invention rotates about an axis, the rotor including a permanent magnet and magnetic induction means; And a stator including a coil disposed between the permanent magnet of the rotor and the magnetic induction means, wherein the rotor is eccentric and rotates according to the vibration of the portable charging device. It is characterized by charging the battery by the induced electromotive force.

Charging device

Description

Portable Charging Device {PORTABLE CHARGING APPARATUS}

1 is a front view showing the appearance of a portable charging device according to the present invention.

2 is a cross-sectional view showing the inside of the portable charging device according to the present invention.

3 is a front view showing the coil and the support means of the portable charging device according to the present invention.

Figure 4 is a side view showing a gap maintaining member of the portable charging device according to the present invention.

5 is a sectional view showing a rotor of the portable charging device according to the present invention.

6 is a front view of the rotor of the portable charging device according to the present invention along the line A-A of FIG.

7 is a front view showing a permanent magnet array of the portable charging device according to the present invention.

8 is a front view and a side view showing a magnetic induction means of the portable charging device according to the present invention.

9 is a circuit diagram showing a circuit connection of the portable charging device according to the present invention.

10 is a conceptual view showing a magnetic path formed by the portable charging device according to the present invention.

11 is a conceptual diagram showing a magnetic path formed by the embodiment in contrast to the present invention.

 * Description of the symbols for the main parts of the drawings *

1: permanent magnet, 4: coil

8: shaft, 10: mass member

15: charging contact, 18: battery groove

The present invention relates to a charging device for a mobile phone battery, and more particularly, to drive a small generator using the kinetic force of the pendulum generated when walking and to charge the battery using the current generated at this time It relates to an invention which can be used for a long time.

Generally, a battery refers to a storage battery that is used as a general energy source in modern society. It is mainly composed of positive and negative electrode plates and electrolytes, and is a direct current electromotive force. As it is to be used as a power source to generate a battery for a mobile phone is a good performance for a long time use a lot of lithium-ion or nickel-cadmium alkaline batteries.

However, even if the cell phone battery is a high-performance battery that can be used for a long time by charging once, the battery repeats the charging and discharging reactions. There was an inconvenience, such as the need to charge the battery.

In particular, if the user of the mobile phone is very active due to the sales activity or a lot of work outside, the battery cannot be used by a single battery because the battery cannot be used. When it was discharged, there was a closed end such that it should be replaced and used.

Therefore, even if the user of the mobile phone usage is very high, there is an urgent need for a proposal for a mobile phone battery that can be used sufficiently with one battery during business hours.

The present invention is to solve the above problems, the object is to drive a small generator using the kinetic force of the eccentric rotor generated during walking or other vibration and to charge the battery using the current generated at this time It is to provide a charging device for a mobile phone battery that can be used for a long time.

Portable charging device according to the present invention rotates about an axis, the rotor comprising a permanent magnet and magnetic induction means; And a stator including a coil disposed between the permanent magnet of the rotor and the magnetic induction means, wherein the rotor is eccentric and rotates according to the vibration of the portable charging device. It is characterized in that for charging the battery by the induced electromotive force generated in the coil.

In addition, two coils are disposed on both side surfaces of the permanent magnet, and magnetic induction means are disposed outside the two coils, respectively.

In addition, the rotor further comprises a cylindrical rotor base for rotating around the axis, the permanent magnet and the magnetic induction means is characterized in that it is installed on the outer peripheral surface of the rotor base.

In addition, the lower portion of the rotor is characterized in that the mass member is installed to eccentric the center of gravity of the rotor.

In addition, the rotor and the stator is characterized in that it further comprises a housing installed therein.

In addition, the housing is formed with a battery groove in which the battery is detachably mounted, characterized in that the charging contact or connector electrically connected to the battery is installed.

The housing may include an onion rectifier rectifying the induced current generated in the coil, a constant voltage regulator for uniformly supplying voltage, and an electric charge chamber in which an overcharge prevention circuit is installed.

In addition, the coil is formed of a plurality arranged in series, the permanent magnet is characterized in that all 16 poles are alternately arranged.

Specific embodiments of the present invention are as follows.

As shown in FIGS. 1 and 2, the battery grooves 18 are formed at the center of the outer surface of the housings 14 and 19 that form the exterior of the portable charging device according to the present invention. This is a removable engaging member 17 is installed on the top so that the battery to be charged is inserted therein, the charging contact 15 is formed on the lower side. Therefore, a battery, which is generally formed in a flat form used for a mobile phone, is inserted into the battery groove 18 so that it can be charged. In addition to the charging method by inserting a battery into the charging contact 15, a connector 19a is formed at the bottom of the housing 19 so that the portable charging device can be directly connected to the portable device using a cable. The sizes of the housings 14 and 19 are 65 mm wide, 75 mm long and 28 mm thick. In addition, the battery uses a battery used in the main battery, secondary battery, digital camera, digital video camera, MP3, etc. of the mobile phone.

Therefore, when the user inserts the battery into the battery groove 18 and the charging is completed, the user may attach the battery to the portable device or connect the connector 19a and the portable device directly with a cable to charge the battery mounted in the portable device. You can choose one.

Various components for power generation are installed in the housings 14 and 19, and the housings 14 and 19 include a front housing 19 in which the battery groove 18 is formed and a rear housing 14 coupled thereto. A shaft 8 is provided behind the central portion inside the housings 14 and 19. This shaft 8 is a general cylindrical shaft 8 and the rear side inside the housings 14 and 19 is fixed and extends forward.

The shaft 8 is provided with a rotor as shown in FIGS. 5 and 6. The rotor comprises a rotor base 2, a permanent magnet 1, a magnetic induction means 6, and a bearing 7. The cylindrical rotor base 2 is a basic component in which other components constituting the rotor are installed, and a hollow in which a bearing 7 is installed is formed in the center thereof. The bearing 7 is in contact with the shaft 8 to minimize friction when the rotor base 2 rotates about the shaft 8.

The permanent magnet 1 is radially installed at the center of the outer side of the rotor base 2. And the lower side of the permanent magnet (1) is provided with a mass member 10 so that the center of gravity of the rotor is formed on the lower side from the shaft (8) without being located on the shaft (8). Since the center of gravity is thus eccentric, when the user walks with the portable charger, the vibration is applied to the portable charger and the rotor swings accordingly. It is a feature of the portable charging device according to the present invention to charge the battery by converting the kinetic energy of the rotor into electrical energy.

As shown in FIG. 7, the permanent magnet 1 is radially formed by crossing the N pole and the S pole, and has two faces, and the material is NdFeB. It is a high Gaussian magnet, which helps to reduce the size and weight of the product. Detailed description of the structure of the permanent magnet 1 will be described later.

As shown in Figs. 5 and 6, the rotor base 2 can be divided into two pieces, and they are joined by the fastening member 3, and these grooves are formed at the outer circumferential portion of the joint surface and are permanent in the grooves. The magnet is clamped and secured by an adhesive.

As shown in FIG. 2, magnetic induction means 6 are provided at both ends of the outer side of the rotor base 2. The magnetic induction means 6 is formed in a disk shape as shown in Fig. 8, and the bearing hole 6a is formed at the center thereof. A cylindrical bent portion 6b vertically bent is formed on the outer circumference of the bearing hole 6a, and a plurality of fastening holes 6c disposed radially are formed outside the bearing hole 6a. The magnetic induction means 6 is fixed to the rotor base 2 by the fastening members 3, 9 and FIG. 2 through this fastening hole 6c. And the bent part 6b is assembled more firmly by being fitted to the hollow part of the rotor base 2. The operation of the magnetic induction means 6 will be described later with reference to FIGS. 10 and 11.

In addition, as shown in Figure 2, the portable charging device according to the present invention includes a stator fixed to the housing (14, 19), the stator is a support means (5), the space holding members (13, 16) and the coil It includes (4).

The support means 5 is made of a plate having a substantially rectangular face as shown in FIG. 3, and a through hole 5b is formed slightly above the center of the support means 5 so that the rotor is formed through the through hole 5b. Is installed. In addition, a plurality of coupling holes (5a) are formed in the edge portion of the support means (5). The spacing member 16 shown in FIG. 4 is provided in this coupling hole 5a. The space keeping member 16 is formed in a hollow cylindrical shape to support the two holding means 5 to have a constant distance. The two support means 5 are each provided with a coil 4, and the side on which the coil 4 is installed is disposed to face each other.

As shown in FIG. 2, the support means 5 and the coil 4 are arranged between the permanent magnet 1 and the magnetic induction means 6.

An electrical equipment chamber 11 is formed at the lowermost part of the housings 14 and 19. The electric chamber 11 includes a plurality of circuit elements for converting the electrical energy generated from the mechanical components into energy that can be used in the battery. The configuration of these circuit elements is shown in detail in FIG.

Hereinafter, referring to FIGS. 7 to 11, a process of processing and charging mechanical energy of a rotor by electric energy in a portable charging device according to the present invention will be described.

As described above, the permanent magnet 1 has two sides and is disposed radially. Referring to FIG. 7, several permanent magnets 1 have N poles and S poles arranged alternately, and the second permanent magnet surfaces 1b corresponding to the first permanent magnet surfaces 1a correspond to each other permanently. The polarity of the magnet 1 has the opposite polarity. That is, the polarity of the second permanent magnet surface 1b formed on the rear surface of the N pole in the first permanent magnet surface 1a has the S pole. Accordingly, the permanent magnets 1 all have 16 poles.

As shown in FIG. 9, the permanent magnets are alternately arranged with opposite polarities. The coils 4 are arranged so that the individual coils 4 are all in series. In the state shown in FIG. 9, it follows that the wiring connected to the coil 4 from the upper side of the onion rectifier is connected to the coils 4 in series along the coil 4 corresponding to the N pole. In addition, after passing through all the coils 4 corresponding to the N pole, it can be seen that they are connected in series only along the coils 4 corresponding to the S pole again. By the coil 4 configuration, it is possible to raise the voltage generated from the generator connection circuit to the maximum. As the permanent magnet 1 rotates, all the coils 4 corresponding to the N poles correspond to the S poles, and the coils 4 corresponding to the S poles correspond to the N poles. Induction electromotive force occurs as the polarity of (1) crosses.

Meanwhile, FIG. 10 shows a magnetic path formed by the permanent magnet 1, the coil 4, and the magnetic induction means 6. In addition, a magnetic path is also shown in FIG. 11 as a comparative example for comparison with the embodiment according to the present invention. The core 4 is not provided inside the coil 4 according to the present invention, whereas the core 24 is provided in the coil 22 according to the comparative example. In the case of the core 24, as in the comparative example, the rotor rotates only when a large force is applied, while in the case of the core according to the present invention, the rotor can rotate without applying a large force. . Therefore, according to the embodiment of the present invention, since the rotor can be made smaller than the comparative example, power generation is possible while achieving miniaturization and light weight.

The magnetic induction means 6 allows the magnetic force from the permanent magnet 1 to be smoothly guided through the coil 4. In addition, since the magnetic flux that has passed through the magnetic induction means 6 is all returned to the permanent magnet 1, the magnetic induction means 6 also serves to prevent the magnetic path from flowing out to the outside. Since the portable charging device according to the present invention is configured for the purpose of carrying by the user, the user may place the portable charging device in a pocket or a bag, for example, a magnetic field or other items vulnerable to magnetic fields, such as a magnetic card or other portable electronic device. Can be. In this case, if the magnetic field leaks out of the portable charging device, damage to an object vulnerable to the magnetic field may occur. Thus, the magnetic induction means 6 acts as a magnetic shielding means to ensure portability and safety.

Referring back to FIG. 9, when the eccentric rotor rotates in a predetermined angle range due to vibration, induced electromotive force is generated in the coil 4 so that an induced current flows. Since these currents are generated by alternating current, they are rectified in an onion rectifier and converted into direct current. Since the current converted into direct current is irregularly formed due to the vibration applied to the portable charging device, the voltage is adjusted through the constant voltage regulator, and finally, the overcharge protection circuit is passed to prevent excessive charging. The charging contact 15 is supplied to the battery.

As described in detail above, according to the portable charging device according to the present invention, since the kinetic energy when walking or exercising can be converted into electrical energy and stored in the portable charging device, the battery is discharged during outdoor activities. This can prevent trouble.

In addition, the permanent magnet and the coil can be compactly assembled in the housing, thereby reducing the size and weight, thereby improving portability.

In addition, by preventing the magnetic field from leaking to the outside of the portable charging device, there is an effect that can ensure the stability and portability.

Claims (8)

delete delete A rotor rotating about an axis, the rotor including permanent magnets and magnetic induction means; A portable charging device comprising: a stator including a coil disposed between the permanent magnet of the rotor and the magnetic induction means, The rotor is eccentric to rotate in accordance with the vibration of the portable charging device to charge the battery by the induced electromotive force generated in the coil by the rotational movement, Two coils are disposed on both sides of the permanent magnet, Magnetic induction means are disposed on the outside of the two coils, The rotor further comprises a cylindrical rotor base that rotates about the axis, The permanent magnet and the magnetic induction means is a portable charging device, characterized in that installed on the outer peripheral surface of the rotor base. 4. The portable charging device according to claim 3, wherein a mass member is installed under the rotor to eccentric the center of gravity of the rotor. The method of claim 3, wherein Portable charging device, characterized in that the rotor and the stator further comprises a housing installed therein. The method of claim 5, wherein the housing A battery groove is formed in which the battery is detachably mounted, Portable charging device, characterized in that the charging contact or connector is electrically connected to the battery is installed. The method of claim 5, wherein the housing Portable rectifier is characterized in that the electric field chamber is installed, the rectifier for rectifying the induced current generated in the coil, the constant voltage regulator for supplying the voltage uniformly and the overcharge protection circuit is installed. The method of claim 3, wherein The coil is formed of a plurality of arranged in series, The permanent magnet is a portable charging device, characterized in that all 16 poles are alternately arranged.

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