KR20000017735A - A power supply unit and a portable electronic instrument to be operated by this power supply unit - Google Patents

Abstract

PURPOSE: A portable power supply unit is provided to use natural vibration energy as charge energy source of a secondary cell and supply a storage battery pack capable of compensating minimal telephone call although the secondary cell is completely discharged. CONSTITUTION: A portable power supply unit comprises a case; an induced power generator including a magnetic flux generator, a coil electrically connected to the magnetic flux generator, and a movement unit for making the magnetic flux generator and the coil relatively move each other by the external movement applied to the case; and a charge control circuit for converting induced power generated by the induced ower generator into a state fitted for supply of the included power to an external circuit.

Description

A POWER SUPPLY UNIT AND A PORTABLE ELECTRONIC INSTRUMENT TO BE OPERATED BY THIS POWER SUPPLY UNIT}

The present invention relates to a power supply device for a portable electronic device and a portable electronic device incorporating the power supply device.

More specifically, the present invention relates to an induced charging unit for inducing electrical energy by using natural or artificial vibration energy and supplying the induced energy to a secondary battery.

The present invention also relates to a power supply unit for forming a single power module by forming the inductive charging device and the secondary battery as one unit, and connecting the electronic device to a stable power supply.

The invention also relates to a por table electronic instrument operated using such a power supply.

In particular, the power supply device of the present invention is useful for power supply of portable communication terminal devices (for example, cellular phones, PCS phones, etc.), but is not necessarily limited thereto.

In general, electronic instruments can be divided into two categories as follows.

The first is to be fixed and used in one place, and the second is to be freely used while the user moves around without being fixed in any place.

For example, the former includes home television sets and audio sets. Examples of the latter include portable communication terminal equipment such as cellular phones, portable computers such as notebook-sized personal computers, portable cassettes, portable CD players, and the like.

In recent years, the use of such portable electronic devices is increasing. In these portable electronic devices, a power source for operating them is essential.

In the case of electronic equipment fixedly used in one place such as home TV, the electrical equipment (outlet) connected to the power distribution system of the power plant is installed at the place of use, and if necessary, the user can connect the plug of the electronic product to the outlet. It is powered by.

On the other hand, in the case of portable electronic devices, the battery (battery) is used as the main power source. Of course, when the user stays in a particular place, the fixed electrical equipment may be used for a limited time.

However, as a user's desire to use freely in a mobile area irrespective of a specific place increases, a battery is recognized as a main power source of a portable electronic device.

Such batteries include one-time use and disposal (for example, dry cells), and secondary cells (storage batteries) that can be charged and discharged and reused through recharging after use. There is).

Recently, the demand for secondary batteries has increased significantly. By the way, in the case of the secondary battery, a separate charging device is required, and when the user runs out of the secondary battery, the user must recharge it through the charging device.

Common charging devices known to date are to receive power from an electrical installation, such as a fixed outlet is supplied to the secondary battery.

However, in this case, since the secondary battery should be charged only at a specific place, the secondary battery cannot be used in a portable electronic device unless it is charged in advance. Therefore, the user should always check the capacity of the secondary battery and predict the replacement time in advance.

If the capacity check of the secondary battery and the prediction of the replacement time deviate, there is a problem that the portable electronic device cannot be used.

Particularly, in the case of a portable communication terminal such as a cellular phone, the capacity of the secondary battery suddenly drops during a call, and thus the call is cut off or the case where the previous day is not charged, the use of the same day is impossible.

Accordingly, a power supply apparatus capable of constantly charging the secondary battery even while the user is moving by providing a power generation facility in itself is desired.

In accordance with such a request, Korean Patent Application No. 98-12939 discloses a power supply device that attaches a solar panel to a battery pack used in a cellular phone and stores electrical energy generated from the solar panel on a secondary battery inside the battery pack. have.

However, the above-described invention has a problem in that power cannot be supplied to secondary batteries in an environment (for example, cloudy weather) or a place (for example, indoor) where solar energy cannot be efficiently used.

Accordingly, a power supply device that obtains electrical energy from natural kinetic kinetic energy such as vibration energy or rotational kinetic energy generated as the user moves, and utilizes the electrical energy as a charging power source for a secondary battery It is requested.

The present invention has been developed in accordance with the above technical request.

It is a first object of the present invention to provide a power supply device that can use natural vibration energy generated according to a user's movement as a charging energy source of a secondary battery.

A second object of the present invention is to provide a portable electronic device which is operated using such a power supply.

A third object of the present invention is to provide a storage battery pack (storage battery pack) that can guarantee at least a phone call in an emergency even when the secondary battery of the portable communication terminal device is completely discharged.

A fourth object of the present invention is to provide a portable communication terminal device which is operated using such a battery pack.

A fifth object of the present invention is to provide a power supply device that can use artificial rotational kinetic energy by a user as a charging energy source of a secondary battery.

A sixth object of the present invention is to provide a charge adjustment circuit capable of appropriately changing the level of the voltage so that the induced electromotive force generated by using natural or artificial vibration energy can be used for charging the secondary battery.

Portable power supply device of the present invention and the case; It is built in the case, the magnetic flux generating means, a coil coupled electromagnetically with the magnetic flux generating means, and the magnetic flux generating means and the coil relative to each other by the external movement applied to the case Induced electromotive force generating means comprising a movement means.

In addition, the portable power supply of the present invention is built into the case, and includes a charge adjustment circuit for converting the induced electromotive force generated by the induction electromotive force generating means to a state suitable for supplying to the external circuit by boosting or rectifying.

In this case, the case includes a first accommodating chamber for accommodating the induction electromotive force generating means and the charge adjusting circuit, and a second accommodating chamber for accommodating the secondary battery.

In addition, the movement means is composed of an elastic member for converting and continuing the external movement to vibration, and a movement member accommodated in the first storage chamber to be free to move by the elastic member.

Both inner walls of the first storage chamber are provided with support plates for fixing and attaching a plurality of magnetic flux generating means. The coil is wound around a plurality of bobbins attached to the moving member with a predetermined number of coils, and the bobbin and the magnetic flux generating means are disposed to face each other, and the relative movement is performed to move closer and further away from the vibration of the moving member.

In addition, in the portable power supply device according to another aspect of the present invention, a subcase for separately accommodating the induction electromotive force generating means may be stored in the inner groove of the first storage chamber. At this time, the magnetic flux generating means is a magnet, the movement means is a coil spring which is installed on both ends of the magnet to freely fix the magnet in the inner groove of the sub-case. The coil is wound around a bobbin that receives a portion of the magnet in the longitudinal direction. This causes the magnet to reciprocate with respect to the bobbin due to the elasticity of the coil spring due to external movement.

In addition, a plurality of induction electromotive force generating means consisting of a magnet, a coil spring and a bobbin may be arranged in series in the inner groove of the sub-case.

In addition, in a portable power supply device according to another aspect of the present invention, the case is provided with a storage chamber for accommodating the magnetic flux generating means, the coil and the movement means, the movement means converts the external movement into vibration to sustain It is made of an elastic member and a movement member accommodated in the storage chamber so as to be able to move freely by the elastic member, wherein the secondary battery and the charge adjustment circuit is embedded in the movement member to be electrically connected to each other. You may.

At this time, both inner walls of the storage chamber is provided with a support plate for fixing and attaching a plurality of bobbin coiled coil, a plurality of magnetic flux generating means is attached to the movement member; The bobbin and the magnetic flux generating means are respectively disposed to face each other, and the relative movement so as to move closer to each other and away from each other according to the vibration of the movement member.

As another aspect of the present invention, a portable power supply device includes a case; It is built in the case, the magnetic flux generating means, a coil coupled electromagnetically with the magnetic flux generating means, and the magnetic flux generating means and the coil relative to each other by the external movement applied to the case Induction electromotive force generating means comprising a movement means; A charge adjustment circuit built in the case and configured to boost or rectify the induced electromotive force generated by the induction electromotive force generating means into a state suitable for supply to an external circuit; And electrical connection means drawn from the outside of the case to supply the charging voltage from the charging adjustment circuit to an external storage battery.

The charge adjustment circuit applied to the portable power supply of the present invention includes a rectifying circuit for converting the induced AC voltage from the induction electromotive force generating means into a DC voltage, and boosting the level of the rectified DC voltage to a level suitable for supplying an external circuit. And a storage supercapacitor for temporarily storing the boosted voltage and supplying the boosted voltage to a secondary battery or an external circuit. The charging control circuit may further include a compensation supercapacitor connected in parallel with the secondary battery in order to prevent the life of the battery from being shortened due to sudden discharge of the secondary battery.

Portable power supply device of the present invention is also applied to the battery pack is coupled to enable the disassembly and coupling to the body of the portable communication terminal device as follows.

In the application to the battery pack, a rectangular space is formed on one side of the outer surface of the battery pack, the space is an elastic member for sustaining the naturally occurring vibration energy; Permanent magnets for generating a constant magnetic flux; A coil coupled electromagnetically with the permanent magnet is accommodated. As a result, as the battery pack vibrates, micro vibration is generated in the elastic member, and the induced magnetism is generated at both ends of the coil by the reciprocating motion of the permanent magnet connected to the elastic member relative to the coil by the micro vibration. . The induced electromotive force generated in this way is boosted and rectified by a charge control circuit built in the battery pack to charge the battery.

In this case, a plurality of rectangular spaces for accommodating the elastic member, the coil, and the permanent magnet may be formed on the outer surface of the battery pack in the vertical and horizontal directions.

Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the appended claims.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate the presently preferred embodiments of the invention and, together with the description of the following preferred embodiments, serve to explain the principles of the invention.

1 is a view for explaining the external configuration of a typical cellular phone. 1A is a front view of the cellular phone, FIG. 1B is a rear view of the cellular phone, and FIG. 1C is a side view of the cellular phone.

2 is a view for explaining a power supply device of a first embodiment according to the present invention.

3 is an enlarged configuration diagram of induction electromotive force generating means applied to the power supply apparatus of the first embodiment.

Fig. 4 is a detailed circuit diagram of the power supply apparatus of the first embodiment.

5 is a block diagram of a charge adjustment circuit applied to the power supply apparatus of the present invention.

6 is an exploded perspective view of a power supply device of a second embodiment according to the present invention.

7 is a detailed configuration diagram of a bobbin applied to the power supply apparatus of the second embodiment.

8 is a plan view for showing a state in which the power supply device of the second embodiment is assembled in the upper storage chamber.

FIG. 9 is a view showing the power supply device of the second embodiment when viewed from below, showing a structure in which a storage battery is incorporated.

Fig. 10 is a side sectional view of the power supply device of the second embodiment.

11 and 12 are exploded perspective views for explaining a power supply device of a third embodiment according to the present invention.

13 is an exploded perspective view for explaining a power supply device of a fourth embodiment according to the present invention.

14 is a cross-sectional view taken along line A-A of a moving member applied to the power supply device of FIG. 13.

15 is a view showing that the portable unit is attached to the power supply device of the present invention.

16 is a view for explaining a power supply device of a fifth embodiment according to the present invention.

FIG. 17 is a view for explaining a power supply device of a sixth embodiment according to the present invention, FIG. 17A is an overall configuration diagram, and FIG. 17B shows a structure inside the case.

18 is a view for explaining a seventh embodiment of the present invention in which the power supply device of the present invention is used as a battery pack.

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

310: case 330: movement member

351, 352, 353, 351 ', 352', 353 ': bobbin

354, 355, 356, 354 ', 355', 356 ': Magnet

357, 358, 357 ', 358': elastic member

The power supply of the present invention is largely composed of a mechanical generator portion and an electronic rectifier portion.

The mechanical generator part of the present invention is a part for converting a user's movement or artificial kinetic kinetic energy (including both up, down, left and right vibration energy and rotational kinetic energy) into induced electric energy through an electromagnetic induction phenomenon.

This mechanical generator part can be designed integrally with the secondary battery or separately separated.

The electronic rectifier portion of the present invention stores the induced electrical energy generated from the mechanical generator portion, and in order to appropriately adjust the voltage level so that the stored electrical energy can be utilized as a power supply for the rechargeable battery of the secondary battery or operation of electronic products. Specially designed circuit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First embodiment

1 to 4 are attached to illustrate a power supply device according to a first embodiment of the present invention.

This embodiment is an embodiment in which the mechanical generator portion for generating the induced electromotive force using natural or artificial vibration energy is fixed and mounted in the portable communication terminal device.

Hereinafter, a description will be given of a cellular phone (cellular phone) which is most widely used among portable communication terminal devices.

Before describing this embodiment, a general configuration of a cellular phone will be described.

1 is a front view (FIG. 1A), a back view (FIG. 1B) and a side view (FIG. 1C) of a cellular phone.

As shown in FIG. 1A, a cellular phone includes a device case 1 having a radio frequency circuit, an antenna 2, a speaker 3, a display unit 4, an alphanumeric key unit ( 5) and a microphone 6.

1B and 1C, the cellular phone is provided with a receiving portion for accommodating the secondary battery 8 on the back of the case 1, and the secondary battery is located in the cellular phone. (8) is detachably combined.

A detachable part 7 for attaching and detaching the secondary battery 8 is formed at an accommodating part of the cellular phone, and a plurality of charging contacts 9 are formed at the lower end of the secondary battery 8.

Figure 2a shows a rear view of a cellular phone in which the power supply of the present invention is fixed and mounted.

An antenna 11 is disposed on an upper end of the device case 10 of the cellular phone, and the secondary battery 13 is mounted through the detachable part 15. Induction electromotive force generating means 17 is formed on the outer surface of the secondary battery 13 (a part which contacts the user when the user grips the cellular phone).

Accordingly, when the user moves in a state of carrying a cellular phone, fine vibrations of the upper and lower sides are generated, and the induced electromotive force generating means generates electric energy to charge the storage battery by the minute vibration.

In addition, when the battery is completely discharged and the cellular phone cannot be used, the user may artificially shake the cellular phone in the direction of arrow B of FIG. 2A to generate dynamic kinetic energy.

An electromagnetic mechanism for producing electrical energy using natural or artificial kinetic kinetic energy and an electrical mechanism for using the generated electrical energy for charging the battery will be described with reference to FIGS. 3 to 5.

First, FIG. 3 shows an enlarged configuration diagram of the induction electromotive force generating means 17 mounted on the outer surface of the secondary battery 13.

As can be seen from Figures 2a to 3, the induced electromotive force generating means 17 is accommodated in the storage space 21 formed on the outer surface of the battery pack in which the secondary battery 13 is built.

The storage space 21 is preferably a rectangular slot, but is not necessarily limited thereto.

The accommodating space 21 protects the induction electromotive force generating means 17 from external shock and protects the internal electronic components of the cellular phone from electromagnetic disturbance caused by electromagnetic induction. It is to play a role.

Therefore, the storage space 21 is preferably electromagnetically protective coating.

The induction electromotive force generating means 17 accommodated in the accommodation space 21 is composed of an electromagnetic induction unit 24 and an elastic member 23 connected to both ends of the electromagnetic induction device 24.

The electromagnetic induction device 24 is a part that generates induced electromotive force using natural vibration energy generated by a user's movement or artificial kinetic energy of the user. As shown in FIG. 4, the electromagnetic induction device 24 is composed of a permanent magnet 25 and a bobbin 27.

The permanent magnet 25 and the bobbin 27 are mechanically connected to the elastic member 23, respectively.

Therefore, when the user carrying the cellular phone with the electromagnetic induction device 24 of the present embodiment moves, fine vibrations of the upper and lower sides are generated, and the fine vibration is transmitted to the elastic member 23. Accordingly, the elastic member 23 continues this micro vibration to relatively rock the permanent magnet 25 and the bobbin 27.

When the permanent magnet 25 having a constant magnetic flux approaches or moves away from the bobbin 27 on which a certain number of coils are wound, a change of magnetic flux is generated and induced electromotive force (faraday) is formed at both ends of the coil wound on the bobbin 27. Induced electromotive force according to the law.

In addition, if a user having a cellular phone equipped with the electromagnetic induction device 24 of the present embodiment shakes the cellular phone in the direction of arrow B of FIG. 2A in an emergency, the induced electromotive force is generated at both ends of the coil through the same process as described above. do.

Elements such as the magnetic force of the permanent magnet 25 and the number of times the coil is wound are appropriately designed in consideration of the capacity of the secondary battery or the weight of the cellular phone.

The elastic member 23 is preferably a coil spring having an elastic modulus large enough to respond to minute vibrations and to sustain the vibrations, but the substitution of the elastic member 23 by the equal means which achieves the same result through the same method and function may be performed by those skilled in the art. It will be possible enough at the technical level.

As can be seen from FIG. 4, the induced electromotive force generated at both ends of the coil wound around the bobbin 27 of the electromagnetic induction device 24 charges the storage battery 29 of the mobile phone via the charge adjusting circuit 30.

The charge adjustment circuit 30 includes a voltage adjustment circuit for boosting the minute induced electromotive force generated in the electromagnetic induction device to a voltage level suitable for charging the secondary battery.

In addition, the charge adjustment circuit 30 includes a rectifier circuit for converting the AC voltage generated in the electromagnetic induction device into a DC voltage.

A specific embodiment of the charge adjustment circuit is shown in FIG.

As shown, the charge adjustment circuit 30 of the present invention includes an AC-DC converter 32, a first DC-DC converter 33, a second DC-DC converter 35, a first supercapacitor. 36, the second supercapacitor 37.

The first and second supercapacitors 36 and 37 and the storage battery 36 are connected in parallel to each other with respect to the second DC-DC transformer 35. In addition, the AC-DC converter 32 is electrically connected to the induction electromotive force generating means (generator) 31, and the second DC-DC converter 35 is connected to an external circuit. Hereinafter, the detailed structure of each part of the charge adjustment circuit 30 is demonstrated.

The AC-DC converter 32 converts an induced AC voltage of about 200 mV generated from the induction electromotive force generating means 31 into a DC voltage of about 1.8V.

That is, the AC-DC converter 32 is composed of a booster for boosting the voltage and a rectifier for rectifying the AC current. The reason for boosting the voltage is to increase the voltage generated at the bobbin of the induction electromotive force generating means so low that it is constant. Therefore, if the voltage generated in the bobbin exceeds about 2V or more, such booster is not necessary. This booster uses a transformer to boost the AC power.

The rectifier is a diode bridge rectifier circuit for converting AC power generated in the bobbin into DC power used in the electronic circuit.

The first DC-DC converter 33 is used to increase a DC voltage of about 1.8V supplied from the AC-DC converter 32 to about 3.6V, which is a potential of the storage battery 36.

The first supercapacitor 34 is for temporarily storing the voltage supplied from the first DC-DC converter 33. The first supercapacitor 34 temporarily stores the power generated from the bobbin, and supplies the stored electric energy to the circuit unit of the electronic device for the operation of the electronic device (circuit of the cellular phone) or the secondary battery (especially, lithium). The battery 36 is supplied to the storage battery 36 for charging the ion battery.

If the power supply of the present embodiment is applied to the cellular phone, the power used during call waiting is supplied from the first supercapacitor 34 and the power used during the actual call is supplied from the battery 36. This regulation of power supply is achieved by an internal microprocessor (not shown in the figure) of the second DC-DC transformer 35. As such, the use efficiency of the storage battery may be further improved by the first supercapacitor 34.

The second supercapacitor 37 is installed to compensate for the battery 36, and when the external circuit requires a momentarily high voltage (pulse voltage), the second supercapacitor 37 stores the stored power of the external circuit. Is supplied. Therefore, the battery 36 can be prevented from excessive discharge generated instantaneously. As a result, the service life of the storage battery 36 is extended by 1.5 to 2 times as compared with the normal case.

The electrical energy accumulated in the second supercapacitor 37 is supplied from the storage battery 36 and an external circuit, which is controlled by the second DC-DC converter 35.

The supercapacitors 34 and 37 are not significantly different from conventional general capacitors. However, since the supercapacitors 34 and 37 use an electric doule layer capacitor (EDLC), the chargeable capacity is about 1,000 to 100,000 times larger than that of a conventional capacitor.

That is, a typical capacitor has a capacity of several to several hundreds of microwatts, whereas a supercapacitor has a capacity of several hundred mF to several Fs.

The second DC-DC converter 35 is used to increase the voltage of 3.6V supplied from the first supercapacitor 34 to 4.0 to 4.2V, the level at which the circuit operates. In addition, the second DC-DC converter 35 adjusts the voltage supplied from the first supercapacitor 34 to be supplied to an external circuit or used as a power source for accumulating the battery 36.

As described above, the weak AC voltage generated in the bobbin is primarily converted into the DC voltage by passing through the charge adjusting circuit 30 and then boosted to the charging potential of the secondary battery or the operating potential of the circuit.

Of course, the charge adjustment circuit 30 of this embodiment is not necessarily limited to the circuit configuration example shown in FIG. That is, various modifications may be made in the technical level of those skilled in the art if the same function and result are shown.

In addition, it may be more desirable to implement the charging control circuit 30 by IC chip in accordance with the trend of light weight of the cellular phone.

The above-described embodiment has described the case where one induction electromotive force generating means 17 is accommodated in the receiving space 21 formed in the longitudinal shape on the outer surface of the secondary battery 13.

However, the induction electromotive force generating means 17 of the present invention may be embedded in the cellular phone, or may be installed by connecting a plurality of induction electromotive force generating devices in parallel as shown in FIG. 2B. In addition, as shown in Figure 2c it will be possible to arrange longitudinally and laterally connected in parallel.

As such, when a plurality of induction electromotive force generating means is connected in parallel, there is an advantage of reducing the need for a separate power supply by increasing the charging capacity, but there is a disadvantage in that the weight of the cellular phone is increased.

The first embodiment of the present invention described above shows a case where the induction electromotive force generating means is fixedly installed on the back of the battery pack attached to the mobile phone.

However, in this embodiment, it is difficult to effectively cope with the requirement of lightening the cellular phone because it is necessary to add a permanent magnet, a part having a non-negligible weight such as bobbins and springs to the cellular phone.

Therefore, hereinafter, new embodiments in which kinetic energy can be used as a charging energy source of a secondary battery without increasing the weight of a portable electronic device such as a cellular phone will be described.

Second embodiment

6 to 10 show a second embodiment of the portable power supply device 100 of the present invention.

Here, FIG. 6 is an exploded perspective view of the portable power supply device 100, FIG. 10 is a side cross-sectional view thereof, and FIG. 9 is a view showing a structure in which the storage battery 170 is built in the power supply device 100 from the lower surface thereof.

The portable power supply device 100 according to the present embodiment has a case 110. The case 110 has an upper storage chamber 113 and a lower storage chamber 115. The upper storage chamber 113 is sealed by an upper cover 112 having a detachable protrusion 121. In addition, the lower storage chamber 115 is also sealed by a lower cover 114 having a detachable protrusion 141. The case 110 has detachable parts 122 and 142 that receive the protrusions 121 and 141, respectively.

Magnetic support plates 105 and 105 ′ are disposed in the upper storage chamber 113 on both inner surfaces of the upper storage chamber 113, and a magnetic support plate (bottom) is provided on the bottom surface of the upper storage chamber 113. A plurality of fixing jaw (101, 102) (101 ', 102') for fixing the 105, 105 'so as not to be separated to the center is formed. A plurality of magnets 156, 157, 158, 156 ′, 157 ′, and 158 ′ are attached to a front surface of each of the magnet support plates 105 and 105 ′.

The movement member 130 is disposed at substantially the center of the upper storage chamber 113. The moving member 130 is a rectangular plate and has a plurality of convex portions 131, 132, 131 ′, 132 ′ and a concave portion at both ends thereof. Bobbins 151, 152, 153, 151 ′, 152 ′ with coils 107 wound in recesses formed by the convex portions 131, 132, 131 ′, and 132 ′ of the moving member. 153 ') are fixed and attached.

7 shows a specific configuration of this bobbin 151.

As shown, the coil 107 is wound on the outside of the bobbin 151, and the hollow 108 for accommodating the magnet is formed therein.

As will be described later, the bobbin 151, 152, 153 (151 ', 152', 153 ') fixed to the movement member also vibrates simultaneously when the movement member 130 vibrates in the longitudinal direction thereof. This causes the magnets 156, 157, 158 (156 ′, 157 ′, 158 ′) to oscillate relative to or away from the hollow of the bobbin. At this time, a change in the magnetic flux is generated, the induced electromotive force is generated at both ends of the coil 107 of the bobbin.

Between the convex portions 131, 132, 131 ′, 132 ′ of the moving member 130 and the magnetic support plates 105, 105 ′, springs, which are elastic members, are respectively 161, 162, 161 ′, 162 ′. ) Is interposed. Grooves are formed in the front of the convex portions 131, 132, 131 ′, and 132 ′ and the front of the magnetic support plate, respectively, and both ends of the springs 131, 132, 131 ′, and 132 ′ are buried therein. In the present embodiment, the coil spring is used as the elastic member, but is not necessarily limited thereto.

6 to 10, the mechanism in which the induced electromotive force is generated in the coil 107 in the portable power supply device 100 according to the present invention will be described.

8 is a plan view of this embodiment 100 with the top cover 112 removed and viewed.

The movement member 130 is disposed to have a gap with both walls of the upper storage chamber 113 in the upper storage chamber 113, and springs 161, 162, 161, 162 'which are elastic members are disposed in the gap. Intervened. Therefore, if the case 110 is vibrated by the external movement, the movement member 130 along the longitudinal direction in the gap by the elasticity (relaxation and expansion) of the spring (161, 162) (161, 162 '). Vibrate Then, the bobbins 151, 152, 153 (151 ′, 152 ′, 153 ′) fixed to the recesses of the movement member 130 have magnets 156, 157, 158, 156 ′, 157 in front of them. ', 158' relative vibration.

As a result, induction electromotive force is generated in the coils 107 wound around the respective bobbins 151, 152, and 153 (151 ', 152', and 153 ') (Faraday's law of electromagnetic induction).

Here, the external movement refers to an exercise applied externally to the power supply device when the user carries the power supply device according to the present invention. For example, vibrations that are artificially shaken by the user by the power supply device or vibrations that are naturally generated by the user carrying and moving the power supply device to the body are included. Another example of external movement is when the portable power supply device according to the present invention is placed in a car. In this case, the portable power supply is shaken according to the vibration of the car and this acts as an external motion.

The induced voltage generated in this way is sent to the charge adjusting circuit 30 of FIG. 5 and converted into a state suitable for charging the storage battery. The charge adjustment circuit 30 of FIG. 5 is mounted in the circuit board 120 of FIG. 6.

The induced electromotive force induced in the coils 107 of the bobbins 151, 152 and 153 and 151 ', 152' and 153 'is an AC voltage. Therefore, the charge adjustment circuit 30 converts the AC voltage into a DC voltage, and then boosts the converted DC voltage to a constant voltage level and stores the converted DC voltage in the supercapacitor 34. The supercapacitor 34 stores a weak induction voltage and supplies a portion of the supercapacitor to a circuit part of a portable electronic device and a portion of the supercapacitor to charge a secondary battery.

9 shows a contact for connection 142 for supplying the storage battery 170 with the DC voltage from the charge regulation circuit 30 embedded in the circuit board 120. The connection contact 142 is disposed in the lower storage chamber 115. Accordingly, the user opens the lower cover 141 as shown in FIG. 9 and inserts the storage battery 170 into the lower storage chamber 115, and then connects the charging terminal (not shown) of the storage battery to the contact 142 for connection. As a result, the induced voltage generated in the coil 107 of the bobbin can be utilized as a power source for charging.

The portable power supply device 100 according to the present embodiment may have a portable unit 180 as shown in FIG. 14. For example, when the portable unit 180 bent by the letter “a” is formed on the upper cover 112, the portable power supply unit 100 according to the present embodiment is placed on the user's belt by hanging the portable unit 180. It is possible to carry and move.

Then, as the user walks or climbs the stairs, the portable power supply device 100 according to the present embodiment naturally moves together with the user's body, so that external movement is naturally applied to the power supply device 100 and the battery 170 ) Is charged.

Third embodiment

In the above-described second embodiment, a structure in which the moving member is essentially included in the case of the power supply device has been described.

However, the technical idea of the present invention can be realized even if there is no movement member. An example of this is shown in FIGS. 11 and 12.

In FIG. 11, the subcase 200 having the inner groove 210 is shown. As shown, the magnet 220 and the bobbin 230 are installed in the inner groove 210. Inside the bobbin 230, a hollow 232 having a size sufficient to allow the magnet 220 to pass therethrough is formed, and a coil 231 is wound around the outside of the bobbin 230.

The length of the magnet 220 is smaller than the longitudinal direction of the inner groove 210. Therefore, a spring 240 that is an elastic member is interposed in the gap between the magnet 220 and the inner groove 210. At this time, protrusions 211 and 221 are formed at both ends of the magnet 220 and both inner surfaces of the inner groove 210 to stably support the spring 240.

A contact 201 is formed on one surface of the subcase 200 to be connected to both ends of the coil 231 of the bobbin 230. These contacts 201 are connected to the charge adjusting circuit having the configuration as shown in FIG. 5 by an external conductor.

When the subcase 200 receives an external movement, the external fine vibration vibrates the spring 240, and the magnet 220 reciprocates back and forth inside the hollow 232 of the bobbin according to the vibration of the spring. Done. Accordingly, a change in magnetic flux is generated in the bobbin 230, and induced electromotive force is generated at both ends of the coil 231.

12 shows another example. In this case, a plurality of magnets (220, 240, 260) and a plurality of bobbins (230, 250, 270) are installed in the inner groove 210, the elastic means between each of the magnets (220, 240, 260) The in-spring 240 is interposed. The spring 240 is fixed by the projection 211.

In the case of FIG. 12, since the currents induced in the respective bobbins 230, 250, and 270 are added up, the vibration displacement of the subcase 200 does not need to be large. In other words, the desired induced electromotive force can be obtained even with a small displacement of the subcase 200.

The sub-case 200 of FIGS. 11 and 12 described above is accommodated in the upper storage chamber of FIG. 6 together with the circuit board including the charge control circuit of FIG. 5 and then sealed by the upper cover to be packaged in one case to provide a single power source. Modules can be formed.

Fourth embodiment

In the above-described embodiments has been described a case where a separate storage compartment for storing the battery in the case of the power supply device is provided. However, this embodiment is an example in which there is no separate lower compartment for storing a battery.

13 and 14 are views for explaining a fourth embodiment according to the portable power supply apparatus of the present invention.

The basic configuration in this embodiment is the same as in the second embodiment.

However, in the present embodiment, the same circuit board, lower storage chamber, and consequent lower cover as in the second embodiment do not exist. The storage battery 370 and the charge adjustment circuit 360 are embedded in the movement member 330 as shown in FIG. 14.

It will be described in detail below.

FIG. 13 is an exploded perspective view illustrating the portable power supply device 300 according to the present embodiment, and FIG. 14 is a side cross-sectional view of the moving member 330 of FIG. 13 taken along line A-A.

The storage compartment 320 is formed in the case 310 having a size (a size of a business card) that can be easily gripped by the user. The storage chamber 320 is sealed by a cover 340 having a detachable protrusion 341. In addition, a detachable portion 342 for accommodating the protrusion 341 of the cover is formed to correspond to the case 310. Bobbin support plates 350 and 350 'are provided on both sides of the storage chamber 320, and the bobbin support plates 350 and 350' are fixed by a plurality of fixing jaws 321 and 322.

Bobbins 351, 352, and 353 (351 ', 352', and 353 ') having a shape as shown in FIG. 7 are fixed and attached to front surfaces of the bobbin support plates 350 and 350'.

The movement member 330 is disposed at an approximately center portion of the storage chamber 320, and unlike the FIG. 6, the movement member 330 is a flat rectangular plate having no convex portion and a concave portion. On both ends of the moving member 330, a plurality of magnets 354, 355, 356 correspond to bobbins 351, 352, 353 (351 ', 352', 353 ') fixed to the bobbin support plates 350, 350'. 354 ', 355', and 356 'are attached. That is, the magnets 354, 355, 356 (354 ′, 355 ′, 356 ′) attached to the movement member 330 are provided with bobbins 351, 352, 353 (351 ′, 352 ′, 353) opposite to each other. Its size and position should be adjusted so that it can be easily reciprocated in the hollow of ').

A plurality of coil springs 357, 358, 357 ′, 358 ′ of high elastic modulus, which are sensitive to minute vibrations, are interposed between the bobbin support plates 350, 350 ′ and the movement member 330.

The bobbins 351, 352, and 353 (351 ′, 352 ′, and 353 ′) are made of duralumin alloy and have greater strength than polymers of the same thickness. The coil wound around the outer surface of the bobbin was used an enamel wire having a diameter of about 0.05 ~ 0.14mm. Of course, it is also possible to use a coil whose diameter is 1/1000 mm. As such, the diameter of the coil is preferably as small as possible. The magnets 354, 355, 356 and 354 ′, 355 ′, and 356 ′ are permanent magnets having a surface of about 3000 Gauss.

Inside the movement member 330 is a storage battery 370 and the charge adjustment circuit 360 as shown in FIG. These batteries 370 and the charge adjustment circuit 360 are cased by molding.

The storage battery 370 preferably uses a small lithium ion battery, and the charge control circuit 360 is a circuit board having the configuration as shown in FIG. 5.

Although not shown in the drawing, one side of the movement member 330 has a connection terminal for providing a power source discharged from the storage battery 360 to the portable electronic device.

Like the second embodiment, the portable power supply device 300 according to the present embodiment may also have a portable unit 180 as shown in FIG. 15.

In the present embodiment, unlike the second embodiment, the bobbin in which the coil is wound is fixed, and the magnet attached to the moving member vibrates relatively, causing a change in magnetic flux to generate induced electromotive force in the coil of the bobbin.

In addition, since a storage battery is built in the movement member without providing a separate storage space for storing the storage battery, an efficient volume ratio can be ensured as compared with the second embodiment.

Fifth Embodiment

In the above-described embodiments, a portable power supply device in which an induction electromotive force generating means (moving member, bobbin, magnet, spring) and a storage battery are simultaneously stored in one case has been described. However, in this case, there may be a disadvantage that the total weight of the case is increased.

Therefore, in the following embodiment, only one storage chamber is formed in the case, and the power supply apparatus in which only the induction electromotive force generating means (moving member, bobbin, magnet, spring, etc.) and the charging adjustment circuit are disposed in the housing chamber is provided. Explain.

The portable power supply apparatus of this embodiment has the same internal structure as any one of the first to fourth embodiments, but does not have a storage battery in the case. That is, when the internal configuration of this embodiment is the same as the first to third embodiments, there is no separate lower storage chamber for accommodating the storage battery, and in the same case as the fourth embodiment, the storage battery does not exist in the moving member. If it is.

Therefore, as shown in FIG. 16, the charging voltage converted through the charging adjustment circuit is supplied to the storage battery by the connecting means drawn out of the case.

Hereinafter, a fifth embodiment of the present invention will be described with reference to FIG.

The portable power supply unit 400 of the present embodiment includes an induction electromotive force generating means such as a spring, a bobbin, a magnet, and a charge adjusting circuit in the case 410. Therefore, the battery does not exist inside the portable power supply, but is embedded in the portable electronic device. Therefore, in the present embodiment, a new electrical connecting means 480 is additionally required for electrically connecting the output terminal of the charge adjusting circuit and the storage battery of the portable electronic device.

This electrical connection means 480 consists of a flexible cable 482 and the connection jack 481. Accordingly, a charging socket for accommodating the connection jack 481 is formed at the lower end of the battery of the portable electronic device corresponding to the portable charging device 400.

Therefore, the user who wants to charge the secondary battery of the portable electronic device through the portable power supply of the present embodiment can simply insert the connection jack 481 of the electrical connection means 480 into the charging socket of the storage battery.

In the present embodiment, compared with the above-described embodiments, since the battery does not exist inside the case constituting the power supply device, the weight and volume of the entire power supply device can be reduced. Therefore, it is possible to meet the development trend of portable electronic devices that are becoming lighter.

Sixth embodiment

The fifth embodiment described above shows a structure in which the bobbin and the magnet move relative to each other by the vibration of the spring. However, the portable power supply device of the present invention is not only limited to this, but also other movement than vibration is possible.

Such an example is shown in FIG. 17.

The present embodiment is an embodiment in which the electrical connection means 580 for connection with the battery is drawn out of the spherical case 510 and can be connected to the battery built in the portable electronic device. .

In the spherical case 510, as shown in FIG. 17B, a coil 591 in which a coil is wound is disposed at the center of the case, and an N pole and a S pole of the permanent magnet 592 are disposed at one end of the outer periphery of the rotor 591. The poles are arranged at regular intervals. In addition, a coil is wound around the outer circumferential surface of the rotor 591. The rotor 591 rotates in the same direction as the case (eg, the yo-yo) 510 rotates in a specific direction.

Therefore, the user can generate the induced electromotive force for charging the battery by rotating the spherical case 510 in the direction of the arrow.

Seventh embodiment

18 shows an example in which the portable power supply of the present invention is used as a storage battery pack of a portable communication terminal device such as a cellular phone. Here, the battery pack refers to a packaged case in which the battery and the charging device are built into one unit and electrically connected to the cellular phone. The battery pack is detachably coupled to the cellular phone.

18 illustrates a battery pack 610 and a cellular phone 600 to which the battery pack 610 is coupled. The battery pack 610 and the cellular phone 600 are coupled to each other by the removable portion 620 shown. That is, the battery pack 610 may be accommodated in the storage space 630 formed on the rear surface of the cellular phone 600, and may be freely separated from and coupled to the cellular phone 600 by the detachable part 620.

In addition, the electrical connection between the battery pack 610 and the cellular phone 600 is achieved by electrical contact between the connection terminal 611 of the battery pack 610 and the connection terminal 631 of the cellular phone.

The internal structure of the battery pack 610 has any one of the above-described second to fourth embodiments. More preferably, it is preferable to have the structure of 4th Example. A detailed description of the internal structure of the battery pack is omitted by referring to the above-described embodiments.

In this embodiment, the battery pack 610 is configured to be freely separated and coupled from the body of the cellular phone. However, the battery pack 610 and the cellular phone 600 may be fixedly coupled to form an integrated body.

The portable power supply devices of the first to seventh embodiments of the present invention described above can be used for all portable electronic devices (portable communication terminal devices, portable computers, portable cassettes, portable CD players, etc.) currently produced and sold. In addition, the power supply device of the present invention is applicable to all electronic devices that are not currently produced and sold but can be carried by humans.

That is, the power supply device of the present invention can be applied to all portable electronic devices that operate using electric energy as a power source.

The present invention is not limited to the above-described embodiments, and various modifications and variations are made by those skilled in the art to which the present invention pertains without departing from the spirit and scope of the appended claims. Of course it is possible.

The present invention has a great industrial significance in that it has developed a meaningless vibration generated by a user's movement as an energy source of a portable electronic device.

In particular, the present invention further increases the stable power supply and portability of portable communication terminal devices and portable computers, which are the core communication means of the future society.

Therefore, the user of the portable electronic device can receive the power required for the operation of the electronic device by simply attaching and moving the power supply of the present invention to the body.

In addition, the portable power supply of the present invention can be easily utilized as a battery pack for a cellular phone, thereby maximizing the portability and convenience of the cellular phone.

Claims (20)

A case; It is built in the case, the magnetic flux generating means, a coil coupled electromagnetically with the magnetic flux generating means, and the magnetic flux generating means and the coil relative to each other by the external movement applied to the case Induction electromotive force generating means comprising a movement means; And a charge adjusting circuit which is built in the case and converts the induced electromotive force generated by the induction electromotive force generating means into a state suitable for supplying to an external circuit by boosting or rectifying. The method of claim 1, The case includes a first accommodating chamber for accommodating the induction electromotive force generating means and the charge adjusting circuit, and a second accommodating chamber for accommodating the secondary battery; And the charge control circuit and the secondary battery are electrically connected to each other. The method of claim 2, And said movement means comprises an elastic member for converting the external movement into vibration and continuing the movement, and a movement member accommodated in said first storage chamber so as to be able to move freely by said elastic member. The method of claim 3, wherein Both inner walls of the first storage chamber are provided with support plates for fixing and attaching a plurality of magnetic flux generating means, and the coils are wound with a predetermined number of coils on a plurality of bobbins attached to the moving member. The bobbin and the magnetic flux generating means are respectively disposed to face each other, the portable power supply, characterized in that the relative movement to move closer and away from the vibration of the movement member. The method of claim 2, A sub case for accommodating the induction electromotive force generating means in the inner groove is accommodated in the first storage chamber, The magnetic flux generating means is a magnet, the movement means is a coil spring installed on both ends of the magnet to freely fix the magnet in the inner groove, The coil is wound around a bobbin which receives a portion of the magnet in the longitudinal direction, This causes the magnet to reciprocate with respect to the bobbin by the elasticity of the coil spring caused by external movement. The method of claim 5, And a set of induction electromotive force generating means comprising a magnet, a coil spring, and a bobbin in series in the inner groove of the sub-case. The method of claim 1, The case includes a storage chamber for receiving the magnetic flux generating means, the coil and the movement means; The movement means is composed of an elastic member for converting the external movement into a vibration to continue, and the movement member accommodated in the storage chamber to be free to move by the elastic member, A portable power supply, characterized in that the secondary battery and the charge control circuit is built in the movement member to be electrically connected to each other. The method of claim 7, wherein Support plates for fixing and attaching a plurality of bobbins in which coils are wound on both inner walls of the storage chamber, and a plurality of magnetic flux generating means are attached to the moving member; The bobbin and the magnetic flux generating means are respectively disposed to face each other, the portable power supply characterized in that the relative movement to move closer to each other and away from each other according to the vibration of the movement member. A case; It is built in the case, the magnetic flux generating means, a coil coupled electromagnetically with the magnetic flux generating means, and the magnetic flux generating means and the coil relative to each other by the external movement applied to the case Induction electromotive force generating means comprising a movement means; A charge adjustment circuit built in the case and configured to boost or rectify the induced electromotive force generated by the induction electromotive force generating means into a state suitable for supply to an external circuit; And Electrical connection means drawn from the outside of the case for supplying a charging voltage from the charging adjustment circuit to an external storage battery; Thus, the portable power supply device can be charged from the outside by the electrical connection means in a state where the battery is embedded in the portable electronic device. The method according to any one of claims 1 to 9, The charge adjustment circuit A rectifier circuit for converting the induced AC voltage from the induced electromotive force generating means into a DC voltage; A boosting circuit for boosting the level of the rectified DC voltage to a level suitable for supplying an external circuit; And a storage supercapacitor for temporarily storing the boosted voltage and supplying the boosted voltage to a secondary battery or an external circuit. The method of claim 10, The charge control circuit further comprises a compensation supercapacitor connected in parallel with the secondary battery in order to prevent the life of the battery is shortened due to the sudden discharge of the secondary battery. A portable electronic device having a built-in portable power supply selected from any one of claims 1 to 11 and supplied with operating power therefrom. The method of claim 12, And the portable power supply is detachably coupled to the portable electronic device. A case detachable from the portable communication terminal device; Induction electromotive force generating means which is installed inside the case and generates induction electromotive force by an external motion applied to the case; A charge adjusting circuit for converting the induced electromotive force generated by the induction electromotive force generating means installed in the case into a state suitable for supplying the storage battery; A storage battery electrically connected to the charge adjustment circuit installed in the case; And A battery pack capable of portable charging, the battery pack being electrically connected to the charging control circuit and comprising electrical connection means with a portable communication terminal device exposed on an outer surface of the case. The method of claim 14, The case has an inner groove, The induced electromotive force generating means A magnet installed on an inner wall surface of the inner groove of the case; A movement member having a length smaller than a longitudinal direction of the inner groove of the case disposed in the inner groove of the case; A bobbin wound around at least one surface of the moving member, the coil being installed at a position facing the magnet disposed on the wall of the inner groove; Portable charging battery pack, characterized in that it comprises an elastic means disposed in the gap between the movement member and the inner groove. The method of claim 15, A plurality of magnets are attached to the wall of the inner groove of the case along the wall, The bobbin wound coil formed on the front surface of the movement member is a plurality of portable battery packs, characterized in that arranged in a plurality corresponding to the position of the magnet. The method of claim 14, The case has an inner groove, The induced electromotive force generating means A bobbin having a hollow wound around a coil seated in the inner groove; A magnet disposed in the hollow of the bobbin; Portable battery packs, characterized in that coupled to the magnet comprises an elastic means supported in the inner groove. The method of claim 17, The bobbin is installed in a plurality in a row in the inner groove of the case, the magnet is installed in a plurality in a row in a row in the hollow of the respective bobbin, portable charging, characterized in that the elastic means is disposed between the magnets Battery pack available. As a battery pack coupled to the body of the portable communication terminal device to be disassembled and coupled, A plurality of rectangular spaces are formed on one side of the outer surface of the battery pack, An elastic member for maintaining the vibration energy generated naturally or artificially in the space; Permanent magnets for generating a constant magnetic flux; A coil coupled electromagnetically with the permanent magnet is accommodated; The elastic member is installed at both ends of the permanent magnet to freely fix the permanent magnet in the space; The coil is arranged to surround the permanent magnet so that the permanent magnet can freely reciprocate inside the coil; As a result, induction electromotive force is generated at both ends of the coil by the permanent magnet reciprocating relative to the coil in response to the vibration of the battery pack; The induction electromotive force is boosted and rectified by a charge control circuit built in the battery pack, the battery pack of a portable terminal device, characterized in that to charge the battery. The method of claim 19, A battery pack of a portable terminal device, characterized in that a plurality of rectangular spaces are formed on the outer surface of the battery pack in longitudinal and transverse directions.