KR200379930Y1 - A portable feeder of multi-DC voltage - Google Patents

Abstract

The present invention relates to a portable multiple DC voltage supply device, and in particular, an input port to which the output connector of the external rectifier is coupled; A rechargeable battery charged by an external rectifier; A power switch for controlling a voltage supply of the rechargeable battery; First and second DC / DC converters for respectively converting DC voltages of the rechargeable battery into different DC voltages; Third and fourth DC / DC converters for converting the DC voltages outputted through the first DC / DC converter into lower DC voltages; A controller which is driven by an output voltage of the fourth DC / DC converter and determines an output voltage state of the rechargeable battery; A residual voltage display unit displaying a residual voltage of the rechargeable battery; In order to transfer the output voltage of the first to third DC / DC converter to an external device, it is composed of at least one output connection means connected to each output terminal.

Therefore, the portability, usability, and compatibility of the device of the present invention can be greatly improved, and the DC voltage required by the device can be supplied regardless of the place, anytime, anywhere, or any device using any DC voltage. The drive and battery can be charged, which greatly improves the reliability of the product.

Description

A portable feeder of multi-DC voltage

The present invention relates to a portable multi-DC voltage supply device, and more particularly, to charge the battery through the output voltage of the external rectifier that rectifies the AC voltage to DC voltage, and then converts the various types of ports into different DC voltages. It supplies the DC voltage required for heating devices such as heat vests, including various electronic devices such as mobile phones, digital cameras, PDAs, MP3s, PMPs, pocket PCs, hard disks, etc. It is designed to be supplied at a charging voltage.

In general, various electronic devices are required to supply a power supply voltage to drive electronic circuits and the like provided therein.

To this end, most electronic devices are used by connecting a power plug to a power outlet provided at a predetermined position. Therefore, the electronic device can be used only in a limited space at a predetermined position, thereby limiting the space for movement.

Therefore, in recent years, various types of portable devices have been provided so that a user can carry and use various electronic devices.

Looking specifically at these portable devices, you can listen to music while moving, audio equipment such as cassette players, CD players, MP3 players, digital cameras that capture images, digital cameras, digital camcorders, digital cameras, etc. There are wireless phones that can make phone calls and mobile phones that can make phone calls from anywhere without limiting the range of movement.

In addition, recently installed a hot plate inside the vest to develop a so-called thermal vest to keep warm the upper body of the human body.

As described above, a disposable battery or a rechargeable battery is used as a power source for driving an electronic circuit or a hot plate provided inside a portable device, a pocket PC or a heat vest which can be carried and used by a user. Most portable devices, such as hot vests, are constantly used, so after using the rechargeable battery for some time, the battery can be recharged and used again.

In other words, in the case of an audio device such as a cassette player, a CD player, or an MP3 player, or a digital camera, a pocket PC, or a cordless phone, an adapter or a charger is used to charge using an AC power supply of 220V supplied to a home or office. .

However, most conventional battery chargers or adapters rectify the AC voltage into a single DC voltage suitable for charging the battery of the device, or converts the DC voltage output from the battery of the vehicle to a single DC voltage suitable for charging the battery of the device. It is configured to charge only the battery of the device or to supply the device with the driving voltage.

However, the conventional battery charger or adapter having such a configuration is not easy to carry due to its large volume, and is inconvenient to use, and can be used only in a home, office, or car where AC power is supplied. There is a problem that is subject to constraints.

In particular, since most of the conventional battery chargers or adapters output only a single DC voltage suitable for the battery charging or using voltage of the device, the battery charger or adapter for each device is lacking in compatibility and usability. There is a problem that the need to buy separately to use a lot of unnecessarily economically.

Recently, a portable charger with a built-in rechargeable battery has been developed and used to temporarily charge a battery of a portable phone in a place where power is not supplied or to temporarily supply power when the battery is over discharged. There is a problem that can be used only for the corresponding device (ie, a mobile phone), but cannot be used to drive other devices or to charge a battery built in the device.

The present invention was devised to solve the above-mentioned problems, and the battery built in the self is charged by using an external rectifier for rectifying the AC voltage to the DC voltage as usual. It converts the voltage of DC into different DC voltages and outputs them through various types of ports, and various electronic devices such as mobile phones, digital cameras, PDAs, MP3s, PMPs, pocket PCs, hard disks, and electronic devices such as digital cameras and mobile phones. In addition, by supplying the DC voltage required for heating equipment such as a heating vest, or to charge the batteries built in each device, it can greatly improve the usability and compatibility of the portable DC voltage supply device, regardless of location Anywhere, any DC voltage To provide a portable multi-voltage direct current supply with a DC voltage can be supplied independently of that required by the device between a group or it is an object.

An aspect of the present invention for achieving the above object is an input port to which the output connector of the external rectifier is selectively coupled; A rechargeable battery charged by an output voltage of an external rectifier supplied through the input port; A power switch configured to determine whether to supply the voltage charged in the rechargeable battery to each part; First and second DC / DC converters for converting DC voltages of the rechargeable battery output through the power switch into DC voltages differently set; Third and fourth DC / DC converters for converting the DC voltages outputted through the first DC / DC converter into lower DC voltages; A controller which is driven by a DC voltage output from the fourth DC / DC converter and determines a state of the DC voltage output from the rechargeable battery; Residual voltage display unit for displaying the residual voltage of the rechargeable battery under the control of the controller in the form of light or bar graph of various colors; In order to transfer the output voltage of the first to third DC / DC conversion unit to an external device is composed of at least one or more output connection means connected to each output terminal.

The output connection means is composed of three output ports for connecting the output terminals of the first to third DC / DC converters individually to each output port, or for connecting the output terminals of the first and third DC / DC converters The output connection means is set to a USB port having four contacts and connected to each contact point, and the output terminal of the second DC / DC converter is connected to the input port so that the input port can also be used as an output connection means. When the external rectifier is connected to the input port by installing a reverse diode between the output terminal and the output terminal of the second DC / DC converter, the output voltage of the external rectifier is supplied to the inside through the output terminal of the second DC / DC converter. Or the output terminals of the first to third DC / DC converters are respectively connected to fixed terminals of the three-row switch, and the movable terminals of the three-row switch are output connection means. And that was connected to the output port in my additional features.

In addition, a device use status display lamp is installed at a rear end of the power switch to use a rechargeable battery to drive various devices or display a state of charging a battery built in each device, or the first to third devices. First to third DC / which displays the state of driving various devices or charging the battery built in each device by using the voltage output through each part between the output terminal and the output connection means of the DC / DC converter. It is characterized in that the additionally installed the use state display lamp of the DC converter.

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

1 shows a block diagram according to an embodiment of the present invention, Figure 2 shows a block diagram according to another embodiment of the present invention, Figure 3 is another embodiment of the device of the present invention Figure 4 shows a block configuration according to, Figure 4 shows an external perspective view of the device of the present invention.

According to the present invention, there is provided an apparatus comprising: an input port 2 to which an output connector 1a of the external rectifier 1 is selectively coupled;

A rechargeable battery 3 charged by a DC output voltage of the external rectifier 1 supplied through the input port 2;

A power switch (4) for determining whether to supply the voltage charged in the rechargeable battery (3) to each part;

First and second DC / DC converters (5) (6) for converting DC voltages of the rechargeable battery 3 output through the power switch 4 into different DC voltages, respectively;

Third and fourth DC / DC converters (7) (8) for converting the DC voltages outputted through the first DC / DC converter (5) into lower DC voltages;

A controller 10 driven by a DC voltage output from the fourth DC / DC converter 8 and determining a state of the DC voltage output from the rechargeable battery 3;

A residual voltage display unit 11 displaying the residual voltage of the rechargeable battery 3 under the control of the controller 10 in the form of light or bar graphs of various colors;

Basic feature is composed of at least one output connecting means (9) connected to each output terminal in order to transfer the output voltage of the first to third DC / DC converter (5)-(7) to an external device It is done.

At this time, the output connecting means (9) is composed of three output ports 91-93 as shown in FIG. 1 to connect the output terminals of the first to third DC / DC converters (5)-(7). It is characterized in that it is connected to each output port (91) -93 individually.

In addition, the output connection means 9 is composed of a USB port 94 and the input port 2 having four contacts 94a-94d as shown in FIG. The output terminals of the first and third DC / DC converters 5 and 7 of the DC converters 5 and 7 are each contacts of the USB port 94 having four contacts 94a and 94d. (94a)-(94d), and the output terminal of the second DC / DC converter (6) is connected to the input port (2) so that the input port (2) itself can be used as the output connection means (9) When the external rectifier 1 is connected to the input port 2 by installing a reverse diode D1 between the input port 2 and the output terminal of the second DC / DC converter 6, the external rectifier ( Another feature is that the output voltage of 1) can be blocked from being supplied with the reverse voltage through the output terminal of the second DC / DC converter 6.

In addition, the output connecting means 9 is composed of one output port 95 as shown in Figure 3, the output port of the 95 and the first to third DC / DC converter (5)-(7) A three-row switch 13 is provided between the output terminals so that each output terminal is connected to the fixed terminals a and c, and the movable terminal d of the three-row switch 13 has one output port. 95) is another feature.

In addition, according to the present invention, a device use status display lamp displaying a state of driving various devices or charging a battery built in each device by using the rechargeable battery 3 at the rear end of the power switch 4. (14) or a DC / DC converter using state display lamp (15) between the output terminals of the first to third DC / DC converters (5)-(7) and the output connecting means (9), respectively. Another feature is that -17 is installed to drive various devices using the voltage output through each unit or to display a state of charging the battery built in each device.

Here, reference numeral 12 is a main body having a rectangular box shape.

Referring to the operation and effect of the device of the present invention configured as described above are as follows.

First, the device of the present invention basically charges a direct current voltage to the rechargeable battery 3 by using an external rectifier 1, and then converts the high direct current voltage charged in the rechargeable battery 3 into the first to fourth. The DC / DC converters 5 and 8 convert the DC voltages required for driving and charging the respective devices or the controller 10 to supply DC devices selectively required to each device. It is made up.

At this time, the external rectifier 1 is used to have an output voltage of approximately 10.8V-12.6V to sufficiently charge the several rechargeable batteries 3 built in the main body 12 of the device of the present invention. .

On the other hand, in the device of the present invention, since the power switch 4 is installed between the output terminal of the rechargeable battery 3 and the input terminal of each part, the external rectifier 1 of the above-mentioned When the output connector 1a is connected to charge the rechargeable battery 3, the power switch 4 is turned off to block the output voltage of the rechargeable battery 3 from being supplied to each part.

Of course, in the above it is also possible to drive or charge other devices using the device of the present invention in addition to the charging of the rechargeable battery (3), in this case the charging time becomes longer, and the external rectifier (1) Since the present device and the specific device have a configuration connected to each other, there is a problem that the specific device cannot be carried.

Therefore, in the device of the present invention, when the rechargeable battery 3 is charged using the external rectifier 1 by installing the power switch 4 as described above, the power switch 4 is "off" for charging. The output voltage of the battery 3 can be prevented from being supplied to each part, thereby reducing the charging time and improving the usability of the device.

Of course, when the rechargeable battery 3 is fully charged in the form as described above, the device is disconnected from the external rectifier 1, and then the devices are selectively added to the output connection means 9 of the device as required. And supply the required DC voltage to the equipment by "on" the power switch (4).

In the present invention, the first and second DC / DC converters 5 and 6 are provided in parallel at the rear end of the power switch 4, and the first DC / DC converter 5 is provided. The third and fourth DC / DC converters 7 and 8 are provided at the output of the first and second DC / DC converters 5 and 6 so that the rechargeable battery 3 The output DC voltage is converted into different DC voltages (for example, 5V and 8.4V), respectively, and in the third and fourth DC / DC converters 7 and 8, the first DC / DC converter It converts the DC voltage (for example, 5V) output through (5) into lower DC voltages (for example, 4.2V and 3.3V).

In this case, the first DC / DC converter 5 may drive a PDA, a PMP, an MP3 player, a digital camera, a hard disk, or the like with a DC voltage of 10.8V-12.6V output from the rechargeable battery 3. Converts a DC voltage of about 5V, and the second DC / DC converter 6 converts a DC voltage of 10.8V-12.6V output from the rechargeable battery 3 into a digital camera equipped with a flash. It converts the DC voltage of about 8.4V, which is a voltage capable of driving electrons, organs, vests, and the like, wherein the third DC / DC converter 7 is output from the first DC / DC converter 5. The DC voltage of 5V is converted into a DC voltage of about 4.2V, which is a voltage capable of driving a mobile phone, an MP3 player, a digital camera, or the like. The third DC / DC converter 7 converts the first DC / DC. A DC voltage of about 5V output from the unit 5 is converted into a DC voltage of about 3.3V required for driving the controller 10. It was constructed to help.

Of course, the output voltages of the first to fourth DC / DC converters 5 to 8 illustrated above are merely illustrated as numbers and are not intended to limit the value thereof. It can be changed by changing the driving voltage of various devices.

In addition, by installing the residual voltage display unit 11 at the output terminal of the controller 10, the fourth DC / DC converter is used to drive various devices or charge the battery built in each device by using the device of the present invention. The control unit 10 driven by the DC voltage output from (8) determines the state of the DC voltage output from the rechargeable battery 3 and displays it through the residual voltage display unit 11 so that the user can use the rechargeable battery. The residual voltage of (3) can be recognized correctly.

At this time, the residual voltage display unit 11 is composed of light-emitting diodes of three colors (for example, green / yellow / red) to display a fully charged state in green, a medium state of charge in yellow, The almost complete discharge state may be displayed in red, or the residual voltage of the rechargeable battery 3 may be displayed in the form of a bar graph by using several light emitting diodes and a bar graph window.

Meanwhile, in the above, the output terminals of the first to third DC / DC converters 5 to 7 are connected to at least one or more output connection means 9, and the output connection means of the DC voltages output from each part. The DC voltage required by the external equipment connected to (9) can be transmitted accurately.

At this time, the output connecting means 9 can present output ports having various shapes and shapes. FIG. 1 shows three output ports 91-93 as the output connecting means 9. It is.

In this case, when the output connecting means 9 is configured with three output ports 91-93, the output terminals of the first to third DC / DC converters 5-7 are respectively output ports. Each device is connected to an output port that outputs a DC voltage corresponding to the voltage required by the device when connecting the device to be driven and charged using the device of the present invention by individually connecting to (91)-(93). Just connect

2 shows that the output connecting means 9 can be used in parallel with the USB port 94 having four contacts 94a and 94d and the input port 2 as output means.

In this case, the output terminals of the first and third DC / DC converters 5 and 7 of the first to third DC / DC converters 5 and 7 described above have four contacts 94a and 94d. Is connected to each of the contacts 94a and 94d of the USB port 94, and the output terminal of the second DC / DC converter 6 is connected to the input port 2 so that the input port 2 itself Can also be used as an output connection means (9), but a reverse diode (D1) is installed between the input port (2) and the output terminal of the second DC / DC converter (6) to the input port (2) When the external rectifier 1 is connected, the output voltage of the external rectifier 1 may be prevented from being supplied with a reverse voltage to the inside through the output terminal of the second DC / DC converter 6.

Of course, when the USB port 94 is to be used as the output connecting means 9 of the first and third DC / DC converters 5 and 7, as described above, the first DC / DC converter 5 or It requires a separate USB port for connecting a separate USB port 94 that can be connected to only the output terminal of the third DC / DC converter (7).

3 shows that the output connecting means 9 is composed of one output port 95 and a three-row switch 13, and the first to third DC / DC converters 5 to 7 of FIG. The output terminals are connected to the fixed terminals (a)-(c) of the three-row switch 13, respectively, and the movable terminal d of the three-row switch 13 is connected to one output port 95.

In this case, the first to third DC / DC conversion unit (1) by appropriately switching the movable terminal (d) of the three-row switch 13 in response to the operating voltage of the device to be driven or charged by the user using the device of the present invention ( 5)-(7) can be selected and supplied to the equipment.

On the other hand, whether the device of the present invention is running when the device of the present invention is connected to a specific device to charge a battery inside the device or to drive the device itself, and the first to third DC / DC converters 5-( 7) Since it is not possible to know whether the DC voltage output from the DC / DC converter is supplied to the device, in the present invention, the device use status indicator lamp 14 is additionally installed at the rear end of the power switch 4. Alternatively, a DC / DC converter using state display lamp (15)-(17) is provided between the output terminals of the first to third DC / DC converters (5)-(7) and the output connecting means (9), respectively. It was.

Therefore, the device use status display lamp 14 can be used to know the overall state of driving various devices or charging the battery built in each device using the rechargeable battery 3 in the device of the present invention, Through the DC / DC converter using state display lamps 15 and 17, the corresponding device may be driven using any one of the first to third DC / DC converters 5 and 7 through the DC / DC converter. Or charging the built-in battery of each device.

The above-described embodiment is described with respect to the most preferred example of the present invention, but is not limited to the above embodiment, it will be apparent to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention.

As described above, according to the present invention portable multi-DC voltage supply device, the internal battery is charged through an external rectifier for rectifying the AC voltage to the DC voltage normally, and then the voltages of the batteries are mutually adjusted as necessary. It is converted to other DC voltage and output through various types of output connection means, including various sound devices such as mobile phones, digital cameras, PDAs, MP3s, PMPs, pocket PCs, hard disks, and electronic devices such as digital cameras and portable telephones. By supplying the DC voltage required for heating equipment such as a hot vest, or charging the batteries built in each device, the portability, usability and compatibility of the portable multi-DC power supply itself can be greatly improved. Anywhere, anytime It was independent of the DC voltage supply required by the device or dc voltage across any device that can be used to charge the battery and the drive will be very useful designed such that you can greatly improve the reliability of its products.

1 is a block diagram according to an embodiment of the present invention device.

Figure 2 is a block diagram according to another embodiment of the present invention device.

Figure 3 is a block diagram according to another embodiment of the present invention device.

4 is an external perspective view of the device of the present invention.

Explanation of symbols on the main parts of the drawings

1: external rectifier 2: input port

3: rechargeable battery 4: power switch

5-8: first to fourth DC / DC converters

9: output connection means 10: control unit

11 residual voltage display 12 body

13: 3-row switch 14: Device status indicator

15-17: Status display lamp of DC / DC converter

91-93,95: Output port 94: USB port

D1: reverse diode

Claims (8)

An input port to which the output connector of the external rectifier is selectively coupled; A rechargeable battery charged with a DC output voltage of an external rectifier supplied through the input port; A power switch configured to determine whether to supply the voltage charged in the rechargeable battery to each part; First and second DC / DC converters for converting DC voltages of the rechargeable battery output through the power switch into different DC voltages, respectively; Third and fourth DC / DC converters for converting the DC voltages outputted through the first DC / DC converter into lower DC voltages; A controller which is driven by a DC voltage output from the fourth DC / DC converter and determines a state of the DC voltage output from the rechargeable battery; A residual voltage display unit displaying a residual voltage of the rechargeable battery under control of the controller; And at least one output connection means connected to each output terminal to transfer output voltages of the first to third DC / DC converters to an external device. The method according to claim 1, The residual voltage display unit is composed of light-emitting diodes of three colors to display a fully charged state in green, to display a medium state of charge in yellow, and to display a complete discharge state in red. Multiple DC voltage supply. The method according to claim 1, The residual voltage display unit is a portable multi-DC voltage supply device, characterized in that to display the residual voltage of the rechargeable battery in the form of a bar graph using several light emitting diodes and a bar graph window. The method according to claim 1, The output connecting means is composed of three output ports portable multiple DC voltage supply device, characterized in that for connecting the output terminals of the first to third DC / DC conversion unit to each output port individually. The method according to claim 1, The output connecting means comprises a USB port having four contacts and the input port, and output terminals of the first and third DC / DC converters of the first to third DC / DC converters are connected to respective contacts of the USB port. The output terminal of the second DC / DC converter is connected to the input port so that the input port itself can be used as an output connection means, but a reverse voltage prevention diode is connected between the input port and the output terminal of the second DC / DC converter. Portable multi DC voltage supply, characterized in that installed. The method according to claim 1, The output connection means is composed of one output port and a three-row switch, the output terminals of the first to third DC / DC converter is connected to the fixed terminal of the three-row switch, respectively, the movable terminal of the three-row switch Portable multiple DC voltage supply, characterized in that connected to one output port. The method according to claim 1, The rear end of the power switch is a portable multi-DC voltage, characterized in that a device using a state of use lamp to display the state of driving a variety of devices using a rechargeable battery or the battery built in each device is installed Feeder. The method according to claim 1, Between the output terminal and the output connection means of the first to third DC / DC converter, a DC / DC converter using state display lamp is installed, and through any one of the first to third DC / DC converters. A portable multi-DC voltage supply device, characterized in that for driving the various devices using the output voltage or to indicate whether or not the battery built in each device is being charged.