KR20040032492A - Power connected apparatus having charger for USB port - Google Patents

Abstract

PURPOSE: A power connection device having a USB port for an electric charging is provided to charge a battery of portable equipment with the electricity at any where by carrying out a cable for an electric charging. CONSTITUTION: A voltage transmission(110) drops a common alternating current of a high voltage. A rectifying circuit(120) converts the alternating voltage into a direct voltage. A filter circuit(130) smoothly filters the voltage rectified by the rectifying circuit. A constant voltage circuit(140) provides the filtered alternating voltage as a stabilized charging voltage. A USB(Universal Serial Bus) port(150) provides the stabilized charging voltage output from the constant voltage circuit to an external USB terminal(212).

Description

Power connected apparatus having charger for USB port

The present invention relates to a power connection device having a USB port for charging, and more particularly, to a USB player in an adapter and a power plug, and to a cassette player, a CD player, an MP3 player, a digital camera, a digital camcorder, a mobile phone, a wireless telephone. The present invention relates to a power connection device having a charging USB port for charging various types of portable devices such as a charging terminal having a USB terminal.

In general, when using an electronic device, a power source is required to drive an electronic circuit provided in the electronic device. 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. That is, the constraint of the space that can be moved.

Therefore, in recent years, various kinds of portable devices have been provided so that a user can carry and use various electronic devices. Looking specifically at these portable devices, audio devices such as cassette players, CD players, MP3 players, recording devices such as digital cameras and digital camcorders to record images, mobile phones, etc. There are wireless phones and mobile phones that can make phone calls from anywhere without limiting the range of movement.

As described above, a portable device that can be carried and used by a user uses a battery or a battery as a power source for driving an electronic circuit provided therein. Since most of these portable devices are continuously used, after using the rechargeable battery or the rechargeable battery to some extent, the portable battery or the battery can be recharged and used again.

That is, in the case of a digital camera, a cordless telephone, or an audio device such as a cassette player, a CD player, or an MP3 player, an adapter is used to charge using an AC power supply of 220V supplied to a home or office.

1 is a perspective view showing a charging device for a conventional acoustic device, Figure 2 is a perspective view showing a charging device for a conventional mobile phone, Figure 3 is a block diagram showing the configuration of a charging circuit of a conventional AC charging device.

As shown in FIG. 1, the adapter 10 generally includes an adapter main body 12 forming an appearance, a power plug 14 provided at one side of the adapter main body 12, and electrically connected to a power outlet. 12) a charging circuit configured to convert the input AC power into a power source capable of charging a portable device (see FIG. 3), a charging terminal connecting line 16 extending from the adapter body 12 to a predetermined length, and charging It is provided at the other end of the terminal connection line 16 is electrically connected to the portable device, while the charging terminal 18 for supplying the converted power through the charging circuit to charge the battery inside the portable device.

Meanwhile, in the case of a mobile phone, a charging device 20 is basically provided at the time of purchase as shown in FIG. 2. The charging device 20 is a mobile phone holder (26) with a built-in charging circuit (see Fig. 3) 220V AC power through the power connection line 24 by electrically connecting the power plug 22 to a power outlet of a home or office. The charging circuit converts the input 220V AC voltage into 20V DC voltage first, and then converts it into 4.1V or 4.2V for charging the mobile phone through the battery charging terminal 28. Will be supplied.

Most of the AC charging device for charging using the 220V AC power of Figs. 1 and 2 as described above, the AC power input 30 as shown in Fig. 3 through the AC / DC conversion means 32a It is configured to be converted to DC power, and converted to DC power suitable for the portable device to be charged through the DC / DC conversion means 32b to be provided to the portable device to be charged, such as mobile phone 34.

However, the conventional portable device charging device as described above has a problem that it is inconvenient in use because it has a problem that the overall volume is not easy to carry. Therefore, the above-described conventional portable device charging apparatus of FIGS. 1 and 2 may be referred to as an office or home only.

On the other hand, in recent years, there has been provided a charging device for charging a portable device by using the battery power of the vehicle, such a vehicle charging device has a problem that can be used only in cars. In addition, such a charging device for a vehicle has a problem that the overall size is large and very difficult to carry and always ride and use in a car.

Accordingly, the present applicant is a "portable device charging device using a computer" in order to solve the problem of inconvenience in use because it is not easy to carry, which was presented as a problem of the charging device as shown in Figs. Application No. 2000-63910 was filed on October 30, 2000.

However, as described above, the "portable device charging device using a computer" (Patent Application No. 2000-63910) is made of a cable with a small volume, so it is easy to carry, but it cannot be used without a computer. there is a problem.

In addition, a charging cable equipped with a USB terminal provided with the purchase of various portable devices (especially a data communication cable provided for image editing on a digital camcorder or a digital camera) charges a mobile phone with a 5V power supplied from a USB port. Cables that have a converter function) can also be used in the absence of a computer.

The present invention has been made to solve the above-mentioned problems, the charge is configured by the USB terminal by configuring a USB port to a power connection device such as an adapter or a power plug to electrically connect the charging cable configured with a USB terminal It is an object of the present invention to provide a power connection device having a USB port for charging to carry a battery only and charge a battery of various portable devices anywhere.

Another object of the present invention is to provide a convenience to the user by configuring a USB port in a power connection device such as an adapter or a power plug so that the use of a charging cable configured with a USB terminal can be made anywhere.

1 is a perspective view showing a conventional charging device for acoustic equipment.

Figure 2 is a perspective view of a conventional mobile phone charging device.

3 is a block diagram showing a configuration of a charging circuit of a conventional AC charging device.

Figure 4 is a block diagram showing a power connection device equipped with a USB port for charging in accordance with the present invention.

5 is a perspective view showing a power connection device equipped with a USB port for charging according to the present invention.

Figure 6 is a perspective view showing another example of a power connection device with a USB port for charging according to FIG.

Figure 7 is a perspective view showing another example of a power connection device with a USB port for charging according to the present invention.

8 is a perspective view showing another example of a power connection device with a charging USB port according to FIG.

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

100. Power connection device 110. Voltage transformer

112. Primary winding 114. Secondary winding

120. Rectifier Circuit 130. Filter Circuit

140. Constant Voltage Circuit 150. USB Port

200. Portable device 210. Charging cable

212.USB terminal 214. Charging connection terminal

216. Power Cord 300. Adapter

310, 410. Charging cable 312, 412. Connection cable

314, 414. Charging terminal 400. Power plug

402. Plug wire

The present invention configured to achieve the above object is as follows. That is, the power connection device with a USB port for charging according to the present invention includes a voltage transformer for dropping the voltage of commercial AC power of high voltage; A rectifier circuit for converting an AC voltage dropped by the voltage transformer into a DC voltage; A filter circuit for smoothly filtering the voltage rectified by the rectifier circuit; A constant voltage circuit for providing a DC voltage filtered by the filter circuit with a stable charging voltage; And a USB port for providing a stable charging voltage output through the constant voltage circuit to an external USB terminal.

In the configuration as described above, the power connection device may be configured in the adapter to supply power to the various portable devices through the electrical connection with the power outlet. At this time, the USB port is configured on one side of the adapter body forming the external appearance of the adapter.

The above-mentioned adapter is provided at the end of the connection line and the thermal connection line which is formed to extend a certain length apart from the USB port and is electrically connected to various portable devices, while supplying the converted power through the charging circuit. A charging cable consisting of a charging terminal for charging the battery may be provided.

In addition, the above-described power connection device may be configured in a power plug that can supply power to the various power devices through electrical connection with the power outlet. At this time, the USB port is configured on one side of the plug body forming the external shape of the power plug.

The above-mentioned power plug is provided at the end of the connection line and the thermal connection line which extends to a predetermined length from the power plug separately from the USB port and is electrically connected to various portable devices, and supplies the converted power through the charging circuit. A charging cable made of a charging terminal for charging an internal battery may be further provided.

Hereinafter, a power connection device equipped with a USB port for charging according to a preferred embodiment of the present invention will be described in detail.

Figure 4 is a block diagram showing a power connection device equipped with a USB port for charging according to the present invention.

The power connection device with a USB port for charging according to the present invention is connected to a USB port to charge a battery of various portable devices such as a cassette player, a CD player, an MP3 player, a digital camera, a digital camcorder, a mobile phone, a cordless phone, and the like. This is to make it easy to use a charging cable equipped with a USB terminal. In other words, the power connection device with a USB port for charging according to the present invention is a device for allowing the charging cable to be used anywhere by moving the charging cable. The configuration of the power connection device provided with such a charging USB port is as follows.

As shown in FIG. 4, the power connection device 100 equipped with the USB port for charging according to the present invention includes a voltage transformer 110 for lowering a voltage of commercial AC power, and rectifying for converting a voltage drop AC voltage into a DC voltage. The circuit 120, the filter circuit 130 for smoothly filtering the rectified voltage, the constant voltage circuit 140 for providing a filtered DC voltage as a stable charging voltage and a stable charging voltage output through the constant voltage circuit 140 It consists of a USB port 150 provided to the USB terminal 212.

The power connection device 100 having the charging USB port configured as described above drops the input high-voltage commercial AC power through the voltage transformer 110, and then converts the voltage drop AC voltage into the rectifier circuit 120. To DC voltage through the filter, filter the DC voltage converted by the rectifier circuit 120 through the filter circuit 130, stabilize the filtered DC voltage through the constant voltage circuit 140 to the USB port 150 Through the stable charging voltage is output to the external connection terminal.

At this time, the external connection terminal connected to the USB port 150 is a USB terminal 212 electrically connected to the USB port 150 of the power connection device 100 according to the present invention, the charging of the various portable devices 200 The charging cable 210 is composed of a charging connection terminal 214 electrically connected to a connection port (not shown) and a power connection line 216 connecting the USB terminal 121 and the charging connection terminal 214. do.

The USB terminal 212 of the charging cable 210 as described above is typically formed to interface with the USB port of any device whose standard is unified. However, in the case of a mobile phone, the size and signal arrangement of the data port are not yet unified, but this is also a situation where a unification plan is left behind.

Therefore, when the power connection device 100 equipped with a USB port for charging according to the present invention carries only a charging cable 210 including a USB terminal 212, a charging connection terminal 214, and a power connection line 216. The battery of the various portable devices 200 can be charged anywhere.

Description of the charging circuit in the power connection device 100 is provided with a charging USB port of the present invention as shown in FIG. At this time, the configuration of the charging circuit of FIG. 4 (it may be referred to as a charging circuit because the configuration of the circuit for charging the battery of each portable device) is just one example, there may be another configuration, of FIG. The circuit configuration does not limit the present invention.

First, when a commercial AC voltage of 220V is input, a voltage drop is performed according to the turns ratio of the primary winding 112 and the secondary winding 114 of the voltage transformer 110. In this case, it is assumed that the input commercial AC voltage of 220V drops to the AC voltage of 10V.

After the high voltage commercial AC voltage of 220V is dropped to a low voltage of 10V by the voltage transformer 110, the dropped AC voltage of the lowered voltage is rectified by the rectifier circuit 120 and converted from AC voltage to DC voltage. At this time, the converted DC voltage is maintained at 10V.

After the rectification circuit 120 converts the AC voltage to the DC voltage by rectification, the DC voltage is smoothly filtered by the filter circuit 130. At this time, when the DC voltage filtered through the filter circuit 130 is filtered to a voltage of 8V, a slight voltage drop occurs.

The DC voltage filtered by the filter circuit 130 is stabilized to the charging voltage corresponding to the corresponding portable device by the constant voltage circuit 140 and is provided to the USB port 150.

As described above, a configuration of a charging circuit for converting a commercial AC voltage of high voltage into a stabilized charging voltage of DC corresponding to the portable device to be charged may be referred to as a general configuration.

However, the present invention, in addition to the configuration of the voltage transformer 110, rectifier circuit 120, filter circuit 130 and constant voltage circuit 140 as described above to output the converted DC voltage to the external connection terminal USB port The configuration of 150 is different from the conventional configuration.

As described above, the power connection device with the charging USB port of the present invention consisting of the voltage transformer 110, the rectifier circuit 120, the filter circuit 130, the constant voltage circuit 140 and the USB port 150. As described above, the battery of each of the portable devices 200 may be carried out anywhere if only the charging cable 210 including the USB terminal 212, the charging connection terminal 214, and the power connection line 216 is carried. It can be said that the invention is very useful because it can be charged. The following shows an example of a power connection device 100 provided with a USB port for charging according to the present invention.

5 is a perspective view showing a power connection device with a charging USB port according to the present invention, Figure 6 is a perspective view showing another example of the power connection device with a charging USB port according to FIG.

5 shows an example in which a power connection device 100 equipped with a USB port for charging according to the present invention is applied, and includes a voltage transformer 110, a rectifier circuit 120, a filter circuit 130, and a constant voltage circuit 140. And the configuration of the power connection device 100 consisting of a USB port 150 is configured in the adapter 300 to supply power to the various portable devices 200 through the electrical connection with a power outlet (not shown) do.

In general, the adapter may be divided into a charging adapter for charging a battery of various portable devices or electronic devices and a power supply adapter for supplying power to various portable devices or electronic devices. ), The rectifier circuit 120, the filter circuit 130, the constant voltage circuit 140 and the USB port 150, the adapter 300 may be configured in both the charging adapter and the power supply adapter.

Meanwhile, as shown in FIG. 6, the adapter 300 including the voltage transformer 110, the rectifier circuit 120, the filter circuit 130, the constant voltage circuit 140, and the USB port 150 is separately from the USB port 150. It is provided at the ends of the connection line 312 and the thermal connection line 312 extending from the adapter 300 to a predetermined length and electrically connected to the various portable devices 200 while supplying the converted power through the charging circuit and portable A charging cable 310 including a charging terminal 314 for charging a battery inside the device 200 may be further provided.

As described above, the charging cable 310 is only a general configuration, but the voltage transformer 110, the rectifier circuit 120, the filter circuit 130, the constant voltage circuit 140, and the USB port 150 as in the present invention. By configuring the charging cable 310 in the adapter 300 is configured to use the portable device 200 of the structure to charge using the charging cable 210 provided with a USB terminal and otherwise use a general charging cable 310 The adapter 300 of the present invention can be applied to all portable devices having a structure.

7 is a perspective view showing another example of a power connection device with a charging USB port according to the present invention, Figure 8 is a perspective view showing another example of a power connection device provided with a charging USB port according to FIG.

7 shows another example in which the power connection device 100 equipped with the charging USB port of the present invention is applied, the voltage transformer 110, the rectifier circuit 120, the filter circuit 130, and the constant voltage circuit 140. And the configuration of the power connection device 100 consisting of a USB port 150 is configured in the power plug 400 to supply power to the various electronic devices through an electrical connection with a power outlet (not shown).

In general, the power plug is essential to supply power to all electrical appliances, and the voltage plug 110, rectifier circuit 120, filter circuit 130, constant voltage circuit 140 and the USB port to the power plug If it is assumed that the power connection device (100) consisting of 150 is spread in the home, as well as offices and various facilities in the configured state, the ripple effect can be said to be explosive.

Meanwhile, as shown in FIG. 8, the power plug 400 including the voltage transformer 110, the rectifier circuit 120, the filter circuit 130, the constant voltage circuit 140, and the USB port 150 is different from the USB port 150. Separately provided at the ends of the connection line 412 and the thermal connection 412 extending to a predetermined length from the power plug 400 is electrically connected to the various portable devices 200 while supplying the converted power through the charging circuit The charging cable 410 made of a charging terminal 414 to charge the battery inside the portable device 200 may be further provided.

As described above, the power plug 400 configured with the power connection device 100 composed of the voltage transformer 110, the rectifier circuit 120, the filter circuit 130, the constant voltage circuit 140, and the USB port 150 may be formed. Although the voltage transformer 110, rectifier circuit 120, filter circuit 130, constant voltage circuit 140 and the USB port 150, etc. are configured therein, it is bulkier than the conventional, but carrying around No problem because it is not.

In the configuration of FIGS. 7 and 8, reference numeral 402 denotes a plug line.

As described above, the power connection device 100 including the voltage transformer 110, the rectifier circuit 120, the filter circuit 130, the constant voltage circuit 140, and the USB port 150 may be connected to an adapter 300 or a power plug ( By configuring the inside of the 400 to use the charging cable 210 with the USB terminal 212 to carry only the charging cable 210 with the USB terminal 212 anywhere, various portable devices Can be charged.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

As described above, according to the present invention, the USB port is configured to a power connection device such as an adapter or a power plug so as to electrically connect the charging cable configured with the USB terminal. There is an effect that can charge the battery of the portable device.

In addition, according to the present invention by configuring a USB port in a power connection device such as an adapter or a power plug, the use of a charging cable configured with a USB terminal can be made anywhere, thereby providing convenience to the user. .

Claims (5)

A voltage transformer for dropping a high voltage commercial AC power supply; A rectifier circuit for converting an AC voltage dropped by the voltage transformer into a DC voltage; A filter circuit for smoothly filtering the voltage rectified by the rectifier circuit; A constant voltage circuit for providing the AC voltage filtered by the filter circuit to a stable charging voltage; And And a USB port for charging comprising a USB port for providing a stable charging voltage output through the constant voltage circuit to an external USB terminal. The power connector of claim 1, wherein the power connector is configured in an adapter to supply power to various portable devices through an electrical connection with a power outlet. According to claim 2, wherein the adapter is provided at the end of the connection line extending to a predetermined length from the adapter separately from the USB port and the thermal connection is electrically connected to various portable devices while being converted through a charging circuit The power connection device with a charging USB port, characterized in that the charging cable further comprises a charging terminal for supplying power to charge the battery inside the portable device. The power connection device with a charging USB port of claim 1, wherein the power connection device is configured in a power plug to supply power to various power devices through an electrical connection with a power outlet. According to claim 4, The power plug is provided at the end of the connection line and the thermal connection line extending from the power plug to a predetermined length apart from the USB port is electrically connected to the various portable devices while charging via a charging circuit And a charging cable comprising a charging terminal configured to supply the converted power to charge the battery inside the portable device.