TWM646532U - Power switch - Google Patents

Abstract

A power switch is provided. The power switch includes an input part, a processing part and an output part. The input part receives at least one input power. The processing unit is connected to the input unit. The processing part includes a voltage protection element. The output part is connected with the processing part and is used for outputting at least one output power. When the input voltage of the input power is greater than a first voltage, the voltage protection element of the processing part is in a closed state, so that the input power of the input part cannot be transmitted to the output part.

Description

power switch

The invention relates to a power switch, in particular to a multifunctional voltage switch.

Although general power switches are equipped with some conventional protection circuits, they cannot effectively handle extreme states in areas with poor infrastructure, such as instability of mains voltage and power supply time, and frequent high-voltage surges in areas with multiple lightning strikes. , There is not a power supply with enough power, or there are multiple loads but only one power supply, or there is not enough power supply. In the above situation, traditional power switches cannot provide an effective solution.

The technical problem to be solved by this invention is to provide a power switch in view of the shortcomings of the existing technology, including: an input part to receive at least one input power supply; a processing part to be connected to the input part, and the processing part includes a voltage protection element ; An output part, connected to the processing part, outputs at least one output power supply; wherein, when an input voltage of the input power supply is greater than a first voltage, the voltage protection element of the processing part is in a closed state , so that the input power of the input part cannot be transmitted to the output part.

One of the beneficial effects of this invention is that the power switch provided by this invention can receive one or more input power supplies to superimpose electric energy, and distribute the electric energy according to the load. Furthermore, the power switch of the present invention can prevent high-voltage surges, such as lightning strikes, sudden rises and falls of mains voltage, from damaging the power switch and back-end electronic devices. In addition, the power switch of this invention can also set the turn-on time of the power switch to remind the user of the power consumption time.

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and diagrams about this creation. However, the diagrams provided are only for reference and illustration and are not used to limit this creation.

The following is a specific embodiment to illustrate the implementation of the "power switch" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this description can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. In addition, the accompanying drawings of this creation are only simple illustrations and are not depictions based on actual size, as stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention. In addition, the term "or" used in this article shall include any one or combination of more of the associated listed items depending on the actual situation.

[First Embodiment]

Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of a power switch, an input power supply, and a load according to an embodiment of the present invention. FIG. 2 is a functional block diagram of the power switch according to the embodiment of the present invention.

In this embodiment, a power switch 1 is provided, including an input part 11 , a processing part 12 and an output part 13 . The processing unit 12 is connected to the input unit 11 . The processing unit 12 is connected to the output unit 13 .

In this embodiment, the input part 11 can receive at least one input power supply VIN1.

The processing part 12 at least includes a voltage protection element 121 . In this embodiment, the voltage protection element 121 is a protection element that can protect against high voltages of at least 1KV or above. For example, it can protect voltage protection components above 6KV.

That is, when an input voltage of the input power VIN1 is greater than a first voltage, the voltage protection element 121 of the processing part 12 is in a closed state, so that the input power of the input part 11 cannot be transmitted to the output part 13 . In addition, the voltage protection component 121 may be a voltage protection component that can be used repeatedly, such as a high voltage relay. The voltage protection element 121 is used to prevent the problem of frequent high voltage surges.

In this embodiment, the output unit 13 outputs at least one output power supply VOUT when the power switch 1 operates normally. The output power supply VOUT is connected to one or more loads L1-L3.

The processing part 12 also includes a controller 120, a timer 122, a load distribution circuit 123 and a power superposition circuit 124.

The controller 120 is electrically connected to the timer 122, the load distribution circuit 123 and the power superposition circuit 124. The voltage protection element 121 is connected to the power superposition circuit 124 . The power superposition circuit 124 is electrically connected to the load distribution circuit 123 . The voltage protection element 121 is also electrically connected to the controller 120 .

The timer 122 is used to set a time interval. When the timer 122 sets a first predetermined time interval, and a usage time of the power switch 1 is equal to the first predetermined time interval, the processing part is in a closed state, so that the input power VIN1-VIN2 of the input part 11 cannot transmitted to the output unit 13.

The load distribution circuit 123 and the power superposition circuit 124 are provided between the input part 11 and the output part 13, that is, between the power transmission paths.

Referring to FIG. 3 , when the controller 120 detects that the output part 13 is connected to multiple loads, the load distribution circuit 123 is activated to distribute the electric energy (first power) of one or more input power sources received by the input part 11 The input power supply VIN1 and the second input power supply VIN2) are distributed to multiple loads. In this embodiment, the multiple loads are two or more loads, such as two loads or three loads (load L1 and load L2).

That is, when one of the plurality of input units 111 of the input unit 11 receives a first input power supply VIN1, and the plurality of output units 121 are connected to two loads, such as the load L1 and the load L2, the load of the processing unit 12 The distribution circuit will distribute the first input power VIN1 to the two loads (load L1 and load L2).

Referring to FIG. 4 , for example, when two of the plurality of input units 111 receive a first input power VIN1 and a second input power VIN2 respectively, and one of the plurality of output units 131 is connected to a load L1 , the process The controller 120 of the unit 12 will control the power superposition circuit 124 to superimpose the first input power VIN1 and the second input power VIN2, so as to provide the superimposed first input power VIN1 and the second input power VIN2 to the output unit 13 for connection. load L1. At this time, the superimposed first input power VIN1 and second input power VIN2 will pass through the load distribution circuit 123 and the output part 13 before being transmitted to the load L1.

The usage scenario in Figure 4 is to superimpose the electric energy from multiple low-power power supplies into high-power electric energy before transmitting it to an electronic device (load L1) that requires high-power input power.

Please refer to FIG. 5 . When the controller 120 detects that the multiple input units 111 of the input unit 11 receive more than two input power supplies (the first input power supply VIN1 and the second input power supply VIN2 ), the controller 120 will enable power superposition. The circuit 124 superimposes the received multiple input power supplies, and then transmits the superimposed electric energy to one or more output units 131 of the output part 13 .

In addition, when the multiple input units 111 of the input part 11 are connected to multiple input power supplies, and the multiple output units 131 of the output part 13 are connected to multiple loads, the controller 120 will turn on the power superposition circuit 124 to combine the multiple input power supplies. Superposition, and the controller 120 will also turn on the load distribution circuit 123 to distribute the superposed electric energy to multiple loads (load L1 and load L2). The usage scenario in Figure 5 is that when multiple loads L1-L2 (electronic devices) need to operate at the same time, the requirement of providing sufficient power can be achieved by superimposing the power of multiple low-power power supplies.

In this embodiment, the power superposition circuit 124 includes at least one supercapacitor (not shown) for receiving power from multiple input power sources and integrating the power. Then, it is supplied to the load distribution circuit 123 through a voltage conversion circuit to be output to the output part. In this way, the problem of insufficient power of the power supply can be effectively solved. When the power required by the electronic device is much greater than the multiple power supplies owned by the user, the user can connect multiple power supplies with smaller power to the power switch 1 of this embodiment. That is, the electric energy output by multiple smaller power power supplies can be superimposed through the electric energy superposition circuit 124 of the power switch 1, and then output to one or more loads L1-L3 by the load distribution circuit 123.

In this embodiment, the plurality of input units 111 of the input unit 11 are also DC input units, used for receiving DC power. The plurality of output units 131 of the output unit 13 are DC output units for outputting DC voltages. The plurality of output units 131 includes a type-C USB connector, a type-A USB connector, a micro USB connector or a DC power connector.

In addition, in this embodiment, one or more loads is an electronic device, including, for example, a notebook computer, a tablet computer, a smart phone, etc.

[Beneficial effects of the embodiment]

One of the beneficial effects of this invention is that the power switch provided by this invention can receive one or more input power supplies to superimpose electric energy, and distribute the electric energy according to the load. Furthermore, the power switch of the present invention can prevent high-voltage surges, such as lightning strikes, sudden rises and falls of mains voltage, from damaging the power switch and back-end electronic devices. In addition, the power switch of this invention can also set the turn-on time of the power switch to remind the user of the power consumption time.

The contents disclosed above are only preferred and feasible embodiments of this invention, and do not limit the scope of the patent application for this invention. Therefore, all equivalent technical changes made by using the description and drawings of this invention are included in the application for this invention. within the scope of the patent.

1:Power switch 11:Input part 12:Processing Department 13:Output department L1-L3: load VOUT: output power VIN1: first input power supply VIN2: Second input power supply 120:Controller 121: Voltage protection components 122: timer 123:Load distribution circuit 124: Electric energy superposition circuit 111:Input unit 131:Output unit

FIG. 1 is a schematic diagram of a power switch, an input power supply, and a load according to an embodiment of the present invention.

FIG. 2 is a functional block diagram of the power switch according to the embodiment of the present invention.

FIG. 3 is a schematic diagram of the use of the power switch according to the embodiment of the present invention.

FIG. 4 is another schematic diagram of the use of the power switch according to the embodiment of the present invention.

Figure 5 is another schematic diagram of the use of the power switch according to the embodiment of this invention.

1:Power switch

11:Input part

12:Processing Department

13:Output department

L1-L3: load

VOUT: output power

VIN1: first input power supply

VIN2: Second input power supply

Claims (9)

A power switch including: An input part receives at least one input power supply; A processing part connected to the input part, the processing part including a voltage protection element; An output part is connected to the processing part and outputs at least one output power supply; Wherein, when an input voltage of the input power supply is greater than a first voltage, the voltage protection element of the processing part is in a closed state, so that the input power of the input part cannot be transmitted to the Output department. The power switch of claim 1, wherein the input part includes a plurality of input units to receive one or more DC voltages. The power switch of claim 2, wherein the plurality of input units include a type-C USB connector, a type-A USB connector, a micro USB connector or a power connector. The power switch of claim 3, wherein the output part includes a plurality of output units to output one or more DC voltages. The power switch of claim 4, wherein the plurality of output units include a type-C USB connector, a type-A USB connector, a micro USB connector or a power connector. The power switch of claim 5, wherein the processing unit further includes at least one timer for setting a time interval, and when the at least one timer sets a first predetermined time interval, and the power switch When a usage time is equal to the first predetermined time interval, the processing part is in a closed state, so that the input power of the input part cannot be transmitted to the output part. The power switch of claim 6, wherein the processing part further includes a load distribution unit, when one of the plurality of input units receives a first input power, and the plurality of output units are connected to at least When there are two loads, the processing part distributes the first input power to the at least two loads, and the at least two loads are each an electronic device. The power switch according to claim 6, wherein the processing part further includes a load distribution circuit and a power superposition circuit. When two of the plurality of input units receive a first input power supply and a second input power supply respectively, When power is input and one of the plurality of output units is connected to a load, the processing unit provides the first input power and the second input power to the load connected to the output unit, so The load is an electronic device. The power switch of claim 6, wherein the processing unit further includes a load distribution circuit and a power superposition circuit. When two of the plurality of input units receive a first input power supply and a second input power supply respectively, When power is input and two of the plurality of output units are connected to two loads, the processing unit distributes the first input power and the second input power to the two connected to the output unit. There are two loads, and the two loads are each an electronic device.

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