TWM483600U - Multi-functional power output protection device - Google Patents

Description

Multi-function power output protection device

The present invention relates to a multifunctional power output protection device, in particular, a circuit board whose opening and closing components and detection components are available for the user to externally charge the external power supply device, and can be prevented by the opening and closing component. The effect of reverse current recharging can also achieve the effect of overload disconnection and current limiting protection by the detecting component, thereby achieving the purpose of multifunctional power output protection.

According to the present invention, when the external load or the battery 92 is to be charged on the market, please refer to the first figure, that is, the power supply device 90 or the charger is electrically connected to the load or the battery 92 by the charging line 91. After the connection, the effect of immediate charging is achieved, thereby achieving the purpose of charging or charging the battery 92; the conventional power output device 90 can achieve the effect of immediate charging, but because of the power output device 90 and the load, or When the battery 92 is electrically connected, the power output device 90 immediately generates a large amount of current for charging or charging the battery 92, so that the current output device 90 has an excessive current output current. Further, the load or the battery 92 has a temperature that is too high to cause an explosion hazard. Further, because the power output device 90 and the load or the battery 92 are charged, it is easy to generate a reverse current to the power output device 90. However, the power output device 90 is damaged or burnt; therefore, how to eliminate the above-mentioned missing, that is, the creator of the case wants to solve the problem The difficulty of surgery.

In view of the existing power output device, the current output device is extremely likely to cause the current output device to have an excessive output current, thereby causing a danger that the load or the battery has a high temperature and an explosion hazard. The purpose of this creation is to provide a multi-function power output protection device, wherein the opening and closing component and the detecting component of the circuit board are available for the user to charge the external power supply device for external load charging. The function of preventing reverse current recharging is achieved by the opening and closing component, and the effect of overload disconnection and current limiting protection is achieved by the detecting component, thereby achieving the purpose of multifunctional power output protection.

In order to achieve the above objective, the present invention provides a multifunctional power output protection device, comprising: a protection device, the protection device is provided with an upper cover and a lower cover, and the protection device is provided with an accommodation space; the circuit board, the circuit The board is disposed in the accommodating space of the protection device, and the circuit board is provided with an input port, an output port, an opening and closing element, a detecting component, and a manual forcing device, and the manual forcing device is electrically connected to the detecting component. Further, one end of the opening and closing element can be electrically connected to the input port, and the other end of the opening and closing element can be electrically connected to the output port, and one end of the detecting element can be electrically connected to the input port, and the detecting element is further connected. One end can be electrically connected to the output ; phase; the multi-functional power output protection device provided by the creation device can be borrowed by the circuit board, and the opening and closing component and the detecting component can be used by the user to charge the external power supply device for external load charging. The opening and closing element achieves the function of preventing reverse current recharging, and the detection element can achieve the effects of overload disconnection and current limiting protection, thereby achieving the purpose of multifunctional power output protection.

90‧‧‧Power output device

91‧‧‧Charging cable

92‧‧‧Battery

10‧‧‧protection device

101‧‧‧ accommodating space

11‧‧‧Upper cover

12‧‧‧Under the cover

13‧‧‧through hole

20‧‧‧ boards

21‧‧‧ Input埠

22‧‧‧ Output埠

30‧‧‧Starting and closing components

40‧‧‧Detection components

50‧‧‧Manual force device

51‧‧‧Warning components

60‧‧‧Power supply unit

61‧‧‧Power transmission line

70‧‧‧ load

71‧‧‧Charging line

The first figure is a three-dimensional combination diagram of the conventional use.

The second figure is a three-dimensional exploded view of the creation.

The third picture is a three-dimensional combination diagram of the creation.

The fourth picture is a schematic diagram of the state of the power supply device and the load used in the present creation.

The fifth picture is a block diagram of the creation.

The sixth figure is a block diagram of the creation of its opening and closing elements.

The seventh figure is a block diagram of the creation of the manual forcing device.

Referring to the second and third figures, the present invention provides a multifunctional power output protection device, comprising: a protection device 10, the protection device 10 is provided with an upper cover 11 and a lower cover 12, and the protection device 10 is also provided. The accommodating device 101 is provided with a through hole 13; a circuit board 20 disposed in the accommodating space 101 of the protection device 10, and the circuit board 20 is provided with an input port 21 and an output.手动22, the opening and closing device 30, the detecting component 40, and the manual forcing device 50, the manual forcing device 50 can be electrically connected to the detecting component 40, and the manual forcing device 50 can correspond to the position of the through hole 13 One end of the opening and closing element 30 can be electrically connected to the input port 21, and the other end of the opening and closing element 30 can be electrically connected to the output port 22, and one end of the detecting element 40 can be electrically connected to the input port 21, The other end of the detecting component 40 can be electrically connected to the output port 22, and the starting state of the opening and closing element 30 is an OFF state, that is, an open circuit is not turned on, and as shown in FIG. 5, the opening and closing device 30 can be a semiconductor. a component of the process, or an electromechanical component, which in turn can be an FET Or the MOSFET, or the JFET, or the relay, the detecting component 40 can be an MCU, or a comparator, or an amplifier, and the circuit board 20 is provided with a warning component, and the warning component 51 can be electrically connected to the detecting component 40. The warning component 51 can be a buzzer, or a light-emitting component, or a liquid crystal display device. Referring to the fourth and fifth figures, the power supply device 60 can further be connected to the input port 21 by the power transmission line 61. Electrically connected, the output 22 of the present invention can be electrically connected to the load 70 by the charging line 71, and the initial state of the opening and closing element 30 of the circuit board 20 is OFF open and non-conducting, and can be achieved. When the positive terminal and the negative terminal of the charging wire 71 are touched together, a large current is generated instantaneously, and the short circuit protection of the power supply device 60 can be achieved. Further, please refer to the sixth figure. When the V _o terminal is connected to the external load 70 voltage, the detecting component 40 of the circuit board 20 immediately detects that the voltage of the V _o terminal is greater than 0V, that is, immediately transmits a control signal to the opening and closing component 30, so that the opening and closing is performed. Element 30 changes from OFF to ON, ie short The circuit is turned on, and then the power supply device 60 can transmit power to the V _o terminal from the terminal V _i to achieve the function of charging the load 70; refer to the fifth and sixth figures, the detecting component of the circuit board 20 40 can detect and record the voltage change between the V _i terminal and the V _o terminal, or the voltage change of the V _o terminal itself, and the voltage change value between the V _i terminal and the V _o terminal, or V _o The voltage change value of the terminal itself can determine whether the load 70 has left the V _o terminal. Therefore, when the load 70 has left the V _o terminal, the detecting component 40 immediately transmits a control signal to the opening and closing. The component 30 is turned into an OFF state, that is, the open circuit is not turned on, thereby achieving the effect that the power supply device 60 cannot transmit power from the V _i terminal to the V _o terminal, thereby achieving the effect of circuit protection. When the detecting component 40 detects that the voltage of the V _o terminal is greater than the voltage of the terminal V _i , the detecting component 40 immediately transmits a control signal to the opening and closing component 30 , so that the opening and closing component 30 is turned from ON to OFF. state to form a unidirectional current output terminal V _o and to prevent current flow back to have the reverse side of the case of V _i, and if Detecting element 40 detects that the terminal voltage V _i V _o is greater than the terminal voltage, and reaches the preset value, i.e., V _i indicates the current flowing through the terminal end of V _o has reached the predetermined current value, the case The detecting component 40 transmits a control signal to the opening and closing component 30, so that the switching component 30 is turned from the ON state to the OFF state, thereby achieving the effects of output current overload or current limiting protection; As shown in FIG. 5, when the detecting component 40 is electrically connected to the output port 22, when the output voltage 22 is detected to have a negative voltage, the detecting component 40 reaches the output. The connected load 70 or the external battery device is connected to the positive and negative terminals, so that the detecting element 40 does not send a signal to the opening and closing element 30, so that the opening and closing element 30 is still in an OFF state, that is, an open circuit is not turned on. At the same time, the detecting component 40 immediately transmits a signal to the warning component 51, so that the warning component 51 can alert the sound or the light to display, thereby reaching the user to have the positive and negative poles connected to the opposite situation, thereby improving the circuit safety; See the seventh figure, by this A manual forcing device 50 is provided. If the user has to forcibly turn the opening and closing element 30 from OFF to ON, the manual forcing device 50 can be activated by transmitting the signal to the Detector. The detecting component 40, when the detecting component 40 receives the signal, immediately transmits a control signal to the opening and closing component 30, so that the opening and closing component 30 is turned from OFF to ON, and by the manual forcing device 50 The preset time can be set. When the preset time passes the setting, the opening and closing component 30 will automatically change from ON to OFF to achieve the purpose of circuit protection. Furthermore, when the user wants to start the manual forcing In the case of the device 50, the detecting component 40 first detects whether the output voltage 22 generates a negative voltage. If a negative voltage is generated, the control signal is stopped to be transmitted to the opening and closing device 30, so that the opening and closing device 30 remains The above is only the preferred embodiment of the present invention. When it is not possible to limit the scope of the creation of the creation, it is obvious that the changes and modifications that can be made by those skilled in the art should be considered. In order not to deviate from the essence of this creation Rong.

10‧‧‧protection device

101‧‧‧ accommodating space

11‧‧‧Upper cover

12‧‧‧Under the cover

13‧‧‧through hole

20‧‧‧ boards

21‧‧‧ Input埠

22‧‧‧ Output埠

30‧‧‧Starting and closing components

40‧‧‧Detection components

50‧‧‧Manual force device

51‧‧‧Warning components

Claims (7)

A multi-functional power output protection device comprising: a protection device, the protection device is provided with an upper cover and a lower cover, and the protection device is provided with an accommodation space; the circuit board is disposed in the accommodation space of the protection device The circuit board is provided with an input port, an output port, an opening and closing element, a detecting element, and a manual forcing device. The manual forcing device is electrically connected to one end of the detecting element, and one end of the opening and closing element is connected to the input port. The other end of the detecting component is electrically connected to the output port, and the other end of the detecting component is electrically connected to the output port. The multi-function power output protection device of claim 1, wherein the start-up element is in an OFF state. The multi-function power output protection device of claim 1, wherein the opening and closing element is a component of a semiconductor process or an electromechanical component. The multi-function power output protection device of claim 1, wherein the opening and closing element is a FET, or a MOSFET, or a JFET, or a relay. The multi-function power output protection device of claim 1, wherein the detecting component is an MCU, or a comparator, or an amplifier. The multi-function power output protection device of claim 1, wherein the circuit board is provided with a warning component. The multi-function power output protection device of claim 6, wherein the warning component is a buzzer, or a light-emitting component, or a liquid crystal display device.