TWM496202U - USB electronic apparatus with alert function - Google Patents

Abstract

An universal serial bus(USB) electronic apparatus is provided. The USB electronic apparatus comprises a power terminal, a power protection device, a power storage unit, a switch unit, and an alert unit. The power terminal which is electrically connected to an USB connection slot receives power from the USB connection slot. The power protection device is electrically connected to the power terminal. The power storage unit which is electrically connected to the power protection device receives the power from the power terminal to store electric energy via the power protection device. The switch unit is electrically connected to the power protection device, the power storage unit, and the alert unit. The switch unit switches into conduction when the power terminal ceases to receive the power. The alert unit receives the electric energy from the power storage unit to generate an alert message via the conductive switch unit.

Description

Universal serial bus electronic device with warning function

This creation is about a universal serial bus (USB) electronic device. In more detail, the present invention relates to a USB electronic device that automatically generates an alert message when the power is temporarily received.

With the steady development of technology, it is quite common for people to use various electronic devices, such as computers, to query the information they need or to process information in their lives and work.

When users need to move or copy the information they query or process the data, they can usually use the USB storage medium or the Internet to move or copy the information they query or the data they process. Due to the small size, light weight and portability of USB storage media, which can be quickly inserted and removed between computers and can store a considerable amount of information or data, USB storage media has become a user in addition to the Internet in the digital era. One of the most commonly used devices.

However, the use of USB storage media for quick insertion and removal between computers is extremely convenient, but due to the relatively small size of USB storage media manufactured by today's manufacturers, users often ignore the existence of USB storage media and forget Unplugging the USB storage medium from the computer causes the USB storage medium to be lost and may cause the information or data stored in the USB storage medium to be stolen.

In summary, how to provide a USB storage medium that is low-cost and can automatically alert the user to remember to pull it out of the computer, thereby avoiding the loss of information or data stored in it, is still the industry's efforts to achieve The goal.

The main purpose of this creation is to provide a USB electronic device with a warning function. The USB electronic device includes a first power terminal, a second power terminal, a power protection component, a power storage unit, an alert unit, and a switch unit. The first power terminal is electrically connected to one of the USB ports on the computer, and receives a power source through the USB port. The first power terminal is also electrically connected to the USB port. The power protection component is electrically connected to the first power supply terminal. The power storage unit is electrically connected to the power protection component, and receives the power from the first power terminal through the power protection component, and stores an electrical energy by the power source. The switch unit is electrically connected to the power protection component, the power storage unit, and the alert unit. When the first power terminal temporarily stops receiving the power, the switch unit enters an on state. The warning unit receives the electrical energy from the power storage unit through the switch unit that enters the conductive state, and generates a warning message by the electrical energy.

In summary, the USB device with the warning function of this creation will directly generate a warning message when the USB port on the computer stops supplying power after connecting the USB port. Accordingly, the USB electronic device with the warning function of the present invention can effectively overcome the conventional electronic USB device which is often neglected and causes loss and may cause the information or data stored in the USB electronic device to be stolen. problem.

1‧‧‧USB electronic device

2‧‧‧ computer

11, 13‧‧‧ warning circuit

15‧‧‧Pore

21‧‧‧A type USB port埠

23‧‧‧B type USB port埠

111‧‧‧First power end point

113‧‧‧second power terminal

115‧‧‧Power protection components

115a‧‧‧first endpoint

115b‧‧‧second endpoint

117‧‧‧Power storage unit

117a‧‧‧first endpoint

117b‧‧‧second endpoint

119‧‧‧pressure unit

1191‧‧‧First resistance

1193‧‧‧second resistance

119a‧‧‧first endpoint

119b‧‧‧second endpoint

119c‧‧‧ third endpoint

121‧‧‧Switch unit

1211‧‧‧First transistor

1213‧‧‧Second transistor

121a‧‧‧first endpoint

121b‧‧‧second endpoint

121c‧‧‧ third endpoint

121d‧‧‧ fourth endpoint

121e‧‧‧ fifth endpoint

123, 125‧‧‧ warning unit

123a‧‧‧first endpoint

123b‧‧‧second endpoint

125a‧‧‧first endpoint

125b‧‧‧second endpoint

V _BUS ‧‧‧Power pin

GND‧‧‧ Grounding Pin

B1‧‧‧ base

B2‧‧‧ base

C1‧‧‧ Collector

C2‧‧‧ Collector

E1‧‧ ‧ emitter

E2‧‧‧ emitter

Figure 1 is a schematic diagram of a USB electronic device with a warning function connected to a computer.

Figure 2A is a schematic diagram of the USB connection of the computer.

Figure 2B is another schematic diagram of the USB port of the computer.

Figure 3A is a circuit diagram of one of the warning circuits of the USB electronic device with the warning function.

Figure 3B is another circuit architecture diagram of the warning circuit of the USB electronic device with the warning function.

The following will explain the content of this creation through the examples. The examples are not intended to limit the present invention to be implemented in any particular environment, application or special manner as described in the embodiments. Therefore, the description of the embodiments is for illustrative purposes only and is not intended to limit the present invention. It should be noted that in the following embodiments and drawings, components that are not directly related to the present invention have been omitted and are not shown; and the dimensional relationships between the components in the drawings are merely for ease of understanding and are not intended to limit the actual ratio.

FIG. 1 is a schematic diagram showing a USB device 1 with a warning function connected to a USB port (not shown) on a computer 2. The USB electronic device 1 includes a warning circuit 11, 13 and at least one fine hole 15. The 2A diagram shows the USB port 21 of the Type A, and the 2B diagram shows the USB port 23 of the Type B. The USB ports 21 and 23 can be used to connect the USB electronic device 1, which respectively includes a power pin V _BUS and a ground pin GND. When the USB ports 21 and 23 are connected to the USB electronic device 1, the power pins V _BUS and the ground pins GND of the USB ports 21 and 23 are electrically connected to the warning circuit 11 of the USB electronic device 1, respectively. In this embodiment, the power pin V _{BUS of the} USB port 21, 23 provides a power supply of 5 volts or 12 volts to the warning circuit 11 of the USB electronic device 1; the ground pin GND of the USB ports 21, 23 provides The ground voltage is 0 volts to the warning circuit 11 of the USB electronic device 1.

As shown in FIG. 3A, the warning circuit 11 of the USB electronic device 1 includes a first power supply terminal 111, a second power supply terminal 113, a power protection component 115, a power storage unit 117, and a voltage dividing unit 119. A switch unit 121 and an alert unit 123. The first power terminal 111 is electrically connected to the power pin V _{BUS of the} aforementioned USB ports 21 and 23, and receives a power of 5 volts or 12 volts through the USB ports 21, 23. The second power terminal 113 is electrically connected to the ground pin GND of the aforementioned USB ports 21, 23, that is, the second power terminal 113 is a ground terminal.

The power protection component 115 includes a first endpoint 115a and a second endpoint 115b. The power storage unit 117 includes a first endpoint 117a and a second endpoint 117b. The voltage dividing unit 119 includes a first end point 119a, a second end point 119b, and a third end point 119c. The switch unit 121 includes a first end point 121a, a second end point 121b, a third end point 121c, a fourth end point 121d, and a fifth end point 121e. The alert unit 123 includes a first endpoint 123a and a second endpoint 123b.

The first terminal 115a of the power protection component 115 is electrically connected to the first power terminal 111. The first end point 117a of the power storage unit 117, the first end point 119a of the voltage dividing unit 119, the second end point 121b of the switch unit 121, and the fourth end point 121d are electrically connected to the second end point 115b of the power protection element 115. . The first end point 121a of the switching unit 121 is electrically connected to the third end point 119c of the voltage dividing unit 119. The first end point 123a of the warning unit 123 is electrically connected to the fifth end point 121e of the switch unit 121. The second end point 117b of the power storage unit 117, the second end point 119b of the voltage dividing unit 119, the third end point 121c of the switch unit 121, and the second end point 123b of the warning unit 123 are electrically connected to the second power source end point 113. .

In the present embodiment, the power protection element 115 has an anode + a cathode and a cathode. However, in other embodiments, the power protection component 115 can be a different type of power protection component according to different configurations, and is not limited to the diode described in this embodiment. In detail, the first terminal 115a of the power protection component 115 is the anode of the diode, and the second terminal 115b of the power protection component 115 is the cathode of the diode.

The power storage unit 117 has a positive electrode + and a negative electrode - a capacitor. However, in other embodiments, the power storage unit 117 can be a different type of power storage unit according to different configurations, and is not limited to the capacitance described in this embodiment. In detail, the first end point 117a of the power storage unit 117 is the positive pole of the capacitor +, and the second end point 117b of the power storage unit 117 is the cathode of the capacitor.

The voltage dividing unit includes a first resistor 1191 and a second resistor 1193. The first resistor 1191 has a first end (not shown) and a second end (not shown); the second resistor 1193 also has a first end (not shown) and a second end (Fig. Not shown). In detail, the second end of the first resistor 1191 is electrically connected to the first end of the second resistor 1193. The first end 119a of the voltage dividing unit 119 is the first end of the first resistor 1191; the second end 119b of the voltage dividing unit 119 is the second end of the second resistor 1193; and the third end 119c of the voltage dividing unit 119 The second end of the first resistor 1191 and the first end of the second resistor 1193 are electrically connected.

The switch unit 121 includes a first transistor 1211 (BJT) and a second transistor 1213. First transistor 1211 There is a base B1 (Base), a collector C1 (Collector) and an emitter E1 (Emitter); the second transistor 1213 also has a base B2, a collector C2 and an emitter E2. However, in other embodiments, the switch unit 121 may include different types of switches according to different configurations, and is not limited to the first transistor 1211 and the second transistor 1213 described in this embodiment. In detail, the collector C1 of the first transistor 1211 is electrically connected to the base B2 of the second transistor 1213. The first end 121a of the switch unit 121 is the base B1 of the first transistor 1211; the second end 121b of the switch unit 121 is the collector C1 and the second transistor 1213 of the first transistor 1211 that are electrically connected. a base B2; a third end 121c of the switch unit 121 is an emitter E1 of the first transistor 1211; a fourth end 121d of the switch unit 121 is a collector C2 of the second transistor 1213; The five end points 121e are the emitters E2 of the second transistor 1213.

The warning unit 123 has a first end + and a second end - one buzzer, the first end 123a of the warning unit 123 is the first end of the buzzer +, and the second end 123b of the warning unit 123 The second end of the buzzer -.

When the USB electronic device 1 is connected to the USB port on the computer 2, the first terminal 117a of the power storage unit 117 is transmitted through the power protection component 115, and the power pin V _{BUS is} received from the first power terminal 111. Power (5 volts or 12 volts) and store an electrical energy from the aforementioned power source. Similarly, the first end point 119a of the voltage dividing unit 119 and the second end point 121b and the fourth end point 121d of the switch unit 121 also pass through the power protection element 115, and receive the power connection of the USB port from the first power source end point 111. The power supplied by the foot V _BUS . When the first terminal 119a of the voltage dividing unit 119 receives the power provided by the power pin V _{BUS of the} USB port, a first voltage division (not shown) is generated at the third terminal 119c.

In this embodiment, when the first terminal 119a of the voltage dividing unit 119 receives the power supply provided by the power pin V _{BUS of the} USB port, the resistance of the first resistor 1191 of the voltage dividing unit 119 is 16,000 ohms. (Ω), and the second resistor 1193 of the voltage dividing unit 119 has a resistance value of 3,300 ohms. On the other hand, when the first terminal 119a of the voltage dividing unit 119 receives the power supply provided by the power pin V _{BUS of the} USB port 12 volts, the resistance of the first resistor 1191 of the voltage dividing unit 119 is 43,000 ohms (Ω). And the second resistor 1193 of the voltage dividing unit 119 has a resistance value of 3,300 ohms. However, in other embodiments, according to different configurations, the first resistor 1191 and the second resistor 1193 of the voltage dividing unit 119 may be resistors having different resistance values, and are not limited by the resistance value described in this embodiment. .

Subsequently, the first end point 121a of the switching unit 121 receives the first partial pressure generated by the voltage dividing unit 119 from the third end point 119c of the voltage dividing unit 119. The first transistor 1211 of the switching unit 121 turns on the collector C1 and the emitter E1 (that is, the first transistor 1211 enters a conducting state) according to the first partial pressure generated by the voltage dividing unit 119. The second transistor 1213 of the switching unit 121 turns off the collector C2 and the emitter E2 in response to the conduction of the collector C1 and the emitter E1 of the first transistor 1211. At this time, since the collector C2 and the emitter E2 of the second transistor 1213 of the switching unit 121 are turned off, the warning unit 123 will not be enabled.

When the computer 2 is turned off or the USB electronic device 1 is unplugged from the computer 2, the first power source terminal 111 temporarily suspends the power supply provided by the power pin V _{BUS of the} USB port. At this point, the power storage unit 117 will release the previously stored electrical energy by its first endpoint 117a. The first end point 119a of the voltage dividing unit 119 and the second end point 121b and the fourth end point 121d of the switching unit 121 pass through the first end point 117a of the power storage unit 117 to receive electrical energy from the power storage unit 117. When the first terminal 119a of the voltage dividing unit 119 receives the power provided by the power storage unit 117, a second voltage divider (not shown) is generated at the third terminal 119c.

As the power of the power storage unit 117 is released, the second partial pressure generated by the voltage dividing unit 119 will decrease accordingly. When the second partial pressure generated by the voltage dividing unit 119 is reduced to be lower than the cutoff voltage of the first transistor 1211, the first transistor 1211 of the switching unit 121 is cut off by the second partial voltage generated by the voltage dividing unit 119. C1 and emitter E1. The second transistor 1213 of the switching unit 121 turns on the collector C2 and the emitter E2 (ie, the second transistor 1213 enters a conducting state) in response to the cutoff of the collector C1 and the emitter E1 of the first transistor 1211. At this time, since the collector C2 and the emitter E2 of the second transistor 1213 of the switching unit 121 are turned on, the warning unit 123 receives the electric energy from the power storage unit 117 through the second transistor 1213 that is in the on state, and is powered by the power. The power released by the storage unit 117 generates a warning message. Since the warning unit 123 is a buzzer, the aforementioned warning message is an audible alarm. Users will be available via USB The fine hole 15 of the electronic device 1 remembers to pull the USB electronic device 1 out of the computer 2 through an audible alarm.

As shown in FIG. 3B, the warning circuit 13 of the USB electronic device 1 is substantially the same as the warning circuit 11 described in the preceding paragraph, and includes a first power supply terminal 111, a second power supply terminal 113, and a power protection device. The component 115, a power storage unit 117, a voltage dividing unit 119, and a switching unit 121. Different from the warning circuit 11, the warning unit 125 of the warning circuit 13 has an anode + and a cathode - a light-emitting diode (LED), and the first terminal 125a of the warning unit 125 is an LED. The anode +, the second terminal 125b of the warning unit 125 is the cathode of the LED.

When the warning unit 125 receives the second transistor 1213 in the on state, it receives power from the power storage unit 117, and generates an alert message by the power released by the power storage unit 117. Since the warning unit 125 is an LED, the aforementioned warning message is a lighting warning. The user will remember to pull the USB electronic device 1 out of the computer 2 through the light hole 15 of the USB electronic device 1 through the light-emitting warning.

Except for the above structure, all the operations described in the warning circuit 13 and the warning circuit 11 and all the corresponding structures and functions are the same, and those skilled in the art can directly understand how the warning circuit 13 is based on the disclosure of the warning circuit 11. The content performs such operations and has such structures and functions, and therefore will not be described herein.

In summary, the USB device with the warning function of this creation will directly generate a warning message after the USB port is connected, when the USB port on the computer stops supplying power or the USB port on the computer is unplugged. Accordingly, the USB electronic device with the warning function of the present invention can effectively overcome the conventional electronic USB device which is often neglected and causes loss and may cause the information or data stored in the USB electronic device to be stolen. problem.

The above embodiments are only used to exemplify the implementation of the present invention, and to explain the technical features of the present invention, and are not intended to limit the scope of protection of the present invention. Any changes or equivalences that can be easily accomplished by those skilled in the art are within the scope of this creation. The scope of protection of this creation shall be subject to the scope of the patent application.

11‧‧‧Warning circuit

111‧‧‧First power end point

113‧‧‧second power terminal

115‧‧‧Power protection components

115a‧‧‧first endpoint

115b‧‧‧second endpoint

117‧‧‧Power storage unit

117a‧‧‧first endpoint

117b‧‧‧second endpoint

119‧‧‧pressure unit

1191‧‧‧First resistance

1193‧‧‧second resistance

119a‧‧‧first endpoint

119b‧‧‧second endpoint

119c‧‧‧ third endpoint

121‧‧‧Switch unit

1211‧‧‧First transistor

1213‧‧‧Second transistor

121a‧‧‧first endpoint

121b‧‧‧second endpoint

121c‧‧‧ third endpoint

121d‧‧‧ fourth endpoint

121e‧‧‧ fifth endpoint

123‧‧‧Warning unit

123a‧‧‧first endpoint

123b‧‧‧second endpoint

V _BUS ‧‧‧Power pin

GND‧‧‧ Grounding Pin

B1‧‧‧ base

B2‧‧‧ base

C1‧‧‧ Collector

C2‧‧‧ Collector

E1‧‧ ‧ emitter

E2‧‧‧ emitter

Claims (10)

A universal serial bus (USB) electronic device with a warning function, comprising: a first power terminal, electrically connected to a USB port, for receiving a power source through the USB port; a power supply terminal electrically connected to the USB port; a power protection component electrically connected to the first power terminal; a power storage unit electrically connected to the power protection component for transmitting the power protection component The first power terminal receives the power and stores an electric energy by the power source; an alert unit; and a switch unit electrically connected to the power protection component, the power storage unit, and the alert unit; wherein, when A power supply terminal temporarily receives the power supply, and the switch unit enters a conduction state because the first power supply terminal temporarily stops receiving the power, and the warning unit receives the power from the power storage unit through the switch unit that enters the conductive state. The electrical energy generates a warning message by the electrical energy. The USB electronic device of claim 1, further comprising a voltage dividing unit electrically connected to the power storage unit and the switching unit, wherein the switching unit is transmitted through the voltage dividing unit, so that the first power terminal is temporarily The power supply is received and the conduction state is entered. The USB electronic device of claim 2, wherein: the power protection component has a first end point and a second end point, and the first end of the power protection element is electrically connected to the first power end point; The power storage unit has a first end point and a second end point; the voltage dividing unit has a first end point, a second end point, and a third end point; the switch unit has a first end point, and a a second end point, a third end point, a fourth end point, and a fifth end point, wherein the first end of the switch unit is electrically connected to the third end point of the voltage dividing unit; and the warning unit has a a first endpoint and a second endpoint, the first of the alert units An end point is electrically connected to the fifth end of the switch unit; wherein the first end of the power storage unit, the first end of the voltage dividing unit, the second end of the switch unit, and the fourth end point a second end of the power protection component, a second endpoint of the power storage unit, a second endpoint of the voltage divider unit, a third endpoint of the switch unit, and a second endpoint of the alert unit Electrically connecting the second power supply terminal. The USB electronic device of claim 3, wherein the power protection component has an anode and a cathode, and the first end of the power protection component is the diode The anode of the anode, the second end of the power protection component is the cathode of the diode. The USB electronic device of claim 3, wherein the power storage unit has a positive pole and a negative capacitor, the first end of the power storage unit being the positive pole of the capacitor, and the second of the power storage unit The end point is the negative pole of the capacitor. The USB electronic device of claim 3, wherein the voltage dividing unit comprises: a first resistor having a first end and a second end; and a second resistor having a first end and a second end; The second end of the first resistor is electrically connected to the first end of the second resistor, the first end of the voltage dividing unit is the first end of the first resistor, and the second end of the voltage dividing unit The second end of the second resistor is electrically connected to the second end of the first resistor and the first end of the second resistor. The USB electronic device of claim 3, the switch unit comprising: a first transistor having a base, a collector, and an emitter; and a second transistor Having a base, a collector, and an emitter; wherein the collector of the first transistor is electrically connected to the base of the second transistor, and the first end of the switch unit is the first transistor a second end of the switch unit electrically connected to the collector of the first transistor and the base of the second transistor, the third end of the switch unit being the first transistor An emitter, a fourth end of the switching unit is a collector of the second transistor, and a fifth end of the switching unit is an emitter of the second transistor. The USB electronic device of claim 3, wherein the warning unit has a first end and a second end of the buzzer, and the first end of the warning unit is the first end of the buzzer The second end of the warning unit is the second end of the buzzer, and the warning message is an audible alarm. The USB electronic device of claim 3, wherein the warning unit has an anode and a cathode light-emitting diode (LED), and the first end of the warning unit is the light-emitting diode The anode of the polar body, the second end of the warning unit is the cathode of the light-emitting diode, and the warning message is a light-emitting warning. The USB electronic device of claim 1, wherein the second power supply terminal is a ground terminal.