KR200326739Y1 - USB data-cable having electric charging function of a portable telephone battery - Google Patents

Abstract

The present invention makes it possible to be compatible with the type of mobile phone battery, to make the charging more stable, to sense the low temperature and high temperature during charging, to charge in a stable environment, and to the power supply means other than the computer connected to the mobile phone The present invention relates to a USB data cable having a mobile phone charging function, which enables charging and greatly expands its function.

To this end, the present invention is connected between the USB port of the computer and the mobile phone, the charging cradle of the mobile phone, and the mobile phone charging function that outputs the charging power to the mobile phone while maintaining a constant voltage by boosting / depressing the power input through the USB port In the USB cable having a charge, the voltage and current of the power source is checked according to the type of battery of the mobile phone, and the checked information is compared with the required power source according to the type of the input battery to determine the boost / step-down rate. It provides a USB data cable having a mobile phone charging function comprising a control unit.

Description

USB data-cable having electric charging function of a portable telephone battery}

The present invention relates to a USB data cable having a mobile phone charging function, and in particular, it is possible to control the charging current according to the type of mobile phone battery, the charging is performed more stably according to the environmental temperature, and the naked eye through the lamp It is possible to check the state of charge and whether there is an abnormality, it is connected to the power supply means other than the computer to enable the charging of the mobile phone is to greatly expand its function.

The computer's USB port is applied to the device bay, along with its internal IEEE 1394, allowing personal computers to have CD and DVD drives, smart card readers, satellite TV decoders, high-speed digital modems, network cards, hard drives, audio, and more. It is well-known that it is used as an expansion slot when adding a device.

Recently, with the rapid spread of computers, as computers have been applied to almost all tasks, a device for charging a personal mobile phone terminal (hereinafter referred to as a mobile phone) through the USB port has been proposed to expand its function.

Utility Model Registration No. 246489 (Mobile Phone USB Charger) (hereinafter, referred to as a registration plan) shows a device for charging a mobile phone through a USB port.

These registration proposals include a USB connection for supplying power to a USB port, a USB cable connected to a USB connection, a mobile phone connection for supplying power to a mobile phone by connecting with a USB cable and a mobile phone connection. It is provided on one side and consists of a charge indicator lamp to check whether the mobile phone battery is charged.

According to the above configuration, the registration proposal connects the USB connection to the USB port of the computer and connects the mobile phone to the mobile phone connection of the other side to enable the charging of the mobile phone, and the charging of the mobile phone is simply performed by a voltage source provided from the computer. The current is limited to the small current and can be checked by the lighting of the charging indicator lamp.

In other words, the above-mentioned registration proposal is to allow the mobile phone to be charged through the computer power in various places due to the ease of carrying, and only the charging of the mobile phone is visually confirmed.

While the registration proposal has the above-mentioned convenience of use, many problems are pointed out to apply the above-described configuration to the actual product as it is.

This is limited to the charging power supply of the computer, the charging current is small during charging, it takes a lot of charging time and there is no part to check the safety is a problem related to other use and safety caused by.

Therefore, in order to solve the limited power supply of the above problems, it has been proposed to include an output power conversion unit for boosting / stepping down DC power input through the side of the USB port.

While the conventional charger is capable of charging the same type of rechargeable battery, it is impossible to charge a different battery for each type or specification according to the manufacturer of the mobile phone battery, so that a separate charging cable for each battery type and specification There is a problem of low compatibility that must be provided.

In addition, the charger is not compatible with other vehicle power plugs, home AC adapters, battery packs, and other power supply means in addition to a computer having a USB port, a problem arises that its function is limited.

In addition, although the configuration for maintaining a constant voltage in the output conversion conversion unit is essentially provided in the charging process, due to the low charging efficiency according to the noise of the input power and the temperature generated by the battery and charger being charged There is a problem of greatly shortening the service life and safety problems.

The present invention was devised to solve the above problems, and outputs the desired charging power for each battery that is different for each type and specification, and is used interchangeably for various power supply means for which the input power is initially supplied. The object is to provide a USB cable with a mobile phone charging function.

Another object of the present invention is to provide a USB cable having a mobile phone charging function to switch the charging to solve the noise of the input power, the charging efficiency of the charger and the heat of high temperature, easy to carry and provided a means for safety have.

1 is a perspective view of a USB data cable according to the present invention.

Figure 2 is a circuit block diagram of a USB data cable according to the present invention.

Figure 3 is a state of use of the USB data cable according to the present invention.

Figure 4 is an extended use state of the function of the USB data cable according to the present invention.

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

10: circuit configuration 30: charge control unit

34: thermistor 40: switching unit

43: noise filter

The present invention has the following features to achieve the above object.

The present invention is connected between the USB port of the computer and the charging cradle of the mobile phone, mobile phone, USB cable having a mobile phone charging function to output the charging power to the mobile phone to maintain a constant voltage by boosting / depressing the power input through the USB port The charging control unit may include: a charging control unit configured to check a voltage and a current of a power input according to a battery type of a mobile phone, and determine a rising / lowering rate by comparing the checked information with a required power according to a type of a previously input battery. Characterized in that.

The charging control unit checks the temperature of the heat generated from the battery as the power is applied to the battery, and determines the voltage and current of the power required by the temperature of the heat, and determines whether the charging control unit itself is charged or not. It characterized in that it comprises a switching unit for intermittent on / off.

The switching unit may include a noise filter for cutting off power in a range not required for actual charging among power input through the battery.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention to which the feature is applied will be described in detail.

1 is an external perspective view of a USB cable according to the present invention, Figure 2 is a cross-sectional view showing the circuit configuration of the USB cable according to the present invention, Figure 3 is a perspective view of a state in which the USB cable according to the present invention is used.

Referring to the drawings, the USB cable according to the present invention is connected to the both ends of the connection wire (1) and the built-in connection wire (1) is divided into a power supply for charging a mobile phone battery and conducting various data communication It has a basic configuration consisting of input and output connectors (2, 3) coupled to the USB port 5 and the mobile phone 6 and the mobile phone charging cradle 7 of the computer (4).

Here, the division of the conductive wires and the conductive wires for performing data communication is specifically distinguished by a pin number coupled to a port, so that the power supply and data transmission can be performed simultaneously. do.

The circuit component 10 is installed in the output connector 3 coupled to the mobile phone 6 and the charging cradle 7.

The circuit configuration unit 10 is applied to the constant voltage unit 20 to maintain the input power to the constant voltage, the charge control unit 30 receives the constant voltage, the power of the charge control unit 30 and the battery 8 It is composed of a switching unit 40 for intermittent by turning on / off the input power.

The charging control unit 30 is composed of a CPU 31, the boost / step-down unit 32, the memory 33.

Here, the memory 33 is previously inputted with information for each type of battery that is different for each type and standard by giving an ID for each battery, and the specific information is input to the voltage, current and battery required for charging for each battery. Limit voltage, current, etc., and various factors that are directly related to the service life of the battery, and the limit temperature due to safety.

The CPU 31 compares the voltage and current of the power input to the battery 8 with the information of the general matters previously input to the memory 33 to determine the power of the power performed in the boost / step-down unit 32. The step-down step 32 is to apply a conventional electronic device composed of an electronic device such as a capacitor in order to step up / step down the direct current to the state of direct current.

The switching unit 40 is a power switching unit 41 for controlling the power for driving the charge control unit 30 itself, and a charge for turning on / off (ON / OFF) the power applied to the battery 8 It consists of the switching part 42.

In addition, the switching unit 40 is a thermistor which is a temperature sensing means for detecting a high temperature heat generated in the battery 8 and the charger when the battery 8 is charged or after charging, due to the environment and other causes. In connection with 34, when the temperature above the limit temperature is generated in the battery, the charge control unit 30 is turned off and the charging power is cut off.

Here, the switching unit 40 and thermistor 34 are connected through the charge control unit 30, and for convenience of understanding, the switching unit 40 and thermistor 34 are regarded as a configuration included in the charge control unit 30.

The switching unit 40 is accompanied with a noise filter 43 to block noise that is not required for charging among the power input to the battery 8, each component is likely to cause a malfunction due to excessive noise generation If so, shut off the charging power.

In the drawing, reference numeral 50 denotes an LED lamp that allows the user to visually check the execution of the charging, the completion of the charging, and the abnormality of the charger. The lamp is configured to emit at least two colors of light in order to have various display forms. Select and configure it.

Figure 4 is a perspective view showing an expanded state of the function of the USB data cable according to the present invention. Referring to these drawings, the above-described USB data cable is a home AC adapter 61 in addition to the USB port 5 of the computer (4). In addition, the vehicle power plug 62, the battery pack 63 and the like as a power supply means, by connecting them with the mobile phone 6 and the mobile phone charging cradle 7 to expand the compatibility function for the power supply means.

The expansion of such a function is possible by checking the voltage, current, type of battery, etc. of the power supplied from the charge control unit 30 to the battery 8, and the AC adapter 61, the vehicle power plug 62, Naturally, the battery pack 63 has a connector corresponding to the input connector 2.

As described above, the present invention has the convenience of use and the elimination of various types of charging cables by ensuring that the output of charging power is matched for each battery that differs according to specifications and types. The effect of resolving economic losses is obtained.

The present invention controls the input power supplied by the power supply means in connection with the function that each battery is compatible, thereby improving the compatibility of various devices applied as the power supply means, greatly expanding the function and improving the convenience of use. You will get the effect.

The present invention is to solve the noise of the input voltage, by intermittently changing the output power and charging whether or not for the temperature, voltage, current generated by the charger and battery to maintain a more stable state of charge, Higher charging efficiency and longer lifespan of the battery improve user reliability.

Claims (3)

In the USB cable that is connected between the USB port of the computer and the charging cradle of the mobile phone, the mobile phone, the mobile phone charging function to output the charging power to the mobile phone by maintaining the constant voltage by boosting / depressing the power input through the USB port, Charge to check the voltage and current of the power input according to the type of battery 8 of the mobile phone, and determine the increase / decrease rate by comparing the checked information with the required power according to the type of the input battery 8. USB data cable having a mobile phone charging function, characterized in that it comprises a control unit (30). The method of claim 1, wherein the charging control unit 30 checks the temperature of the heat generated from the battery 8 in the temperature sensing unit 34 as the power is applied to the battery 8, and is required by the temperature of this heat USB data cable having a mobile phone charging function, characterized in that it comprises a switching unit 40 to determine the voltage, current of the power supply, the on / off of the power supply and charging of the charging control unit 30 itself. 3. The mobile phone charging according to claim 2, wherein the switching unit 40 includes a noise filter 43 for cutting off power in a range not required for actual charging among power inputted through the battery 8. USB data cable with function.