CN113595213B - power distribution device - Google Patents

Abstract

The invention discloses a power distribution device, which comprises a plug and at least two charging ports, wherein the plug and the at least two charging ports are arranged on a shell; a charging unit and a processing unit are arranged in the shell; the charging unit is electrically connected with the at least two charging ports and the plug, and the processing unit is electrically connected with the charging unit; when the processing unit does not receive a trigger signal, the processing unit controls the output power of the at least two charging ports according to a standard distribution power supply mode; when the processing unit receives the trigger signal, the processing unit controls the charging unit according to a first mode, and the charging unit correspondingly controls the output power of the at least two charging ports, so that the at least two charging ports flexibly adjust the output power, and a plurality of electronic devices electrically connected with the at least two charging ports can be charged more efficiently and rapidly.

Description

power distribution device

Technical field

The present invention relates to a power distribution device, and in particular to a power distribution device capable of controlling the output power of at least two charging ports in a standard distribution power supply mode or a first mode.

Background technique

Any electronic device equipped with a rechargeable battery must be charged regularly, and charging usually requires an adapter to convert AC alternating current into DC current to facilitate charging of the rechargeable battery. With the development of technology, some adapters are equipped with at least two charging ports for charging at least two electronic devices at the same time. Furthermore, today's adapters with at least two charging ports can only charge at least two electronic devices at the same time in a fixed power distribution mode, but cannot flexibly change the power distribution mode.

Among them, the most common power distribution mode is to evenly distribute the charging power to at least two charging ports, so that the charging power given to each electronic device by each charging port will be consistent. However, if one of the at least two electronic devices that need to be charged urgently needs to be charged quickly, the current adapter cannot give the electronic device that urgently needs to be charged a higher charging power than the other electronic device that is being charged. , that is, the electronic device that urgently needs to be charged cannot be charged in a shorter time depending on the situation.

In addition, today's adapters with at least two charging ports have fixed power distribution for each charging port, that is, one charging port can perform fast charging, while the other charging port can only use normal charging power. However, if the number of electronic devices that require fast charging and the number of electronic devices that do not require fast charging are different from the originally designed power distribution plan, the charging power distribution cannot be used flexibly.

For example, assume that the adapter has 3 charging ports and can charge multiple electronic devices with a total wattage of 120 watts. One of the fast charging ports has a charging power of 60 watts, and the two slow charging ports have a charging power of 60 watts. Each is 30 watts. However, among the three electronic devices that need to be charged, two have fast charging needs, while the other has no urgent charging needs. However, the adapter is limited by its fixed charging power distribution scheme. It can only quickly charge one electronic device at 60 watts, and the other two can only charge at a slow speed of 30 watts, which cannot meet the needs of two electronic devices that require fast charging. Therefore, today's adapters cannot flexibly adjust the output power and cannot efficiently charge electronic devices quickly.

Contents of the invention

In view of the above problems, the present invention provides a power distribution device, which includes a housing, a plug, at least two charging ports, a charging unit and a processing unit. The plug and the at least two charging ports are provided on the housing, and the charging unit and the processing unit are provided in the housing. The charging unit is electrically connected to the at least two charging ports and the plug respectively, and the processing unit is electrically connected to the charging unit. Among them, the processing unit determines whether a trigger signal is received.

When the processing unit does not receive the trigger signal, the processing unit controls the charging unit according to a standard distribution power supply mode, and the charging unit correspondingly controls the output power of the at least two charging ports.

When the processing unit receives the trigger signal, the processing unit controls the charging unit according to a first mode, and the charging unit correspondingly controls the output power of the at least two charging ports.

When the power distribution device of the present invention is respectively connected to at least two electronic devices to be charged through its at least two charging ports, the processing unit can charge the at least two electronic devices according to the preset standard distribution power mode. In addition, the output power of the at least two charging ports can also be controlled according to the first mode to charge the at least two electronic devices. And when the processing unit controls the at least two electronic devices to charge according to the first mode, the output power of the at least two charging ports can be adjusted according to the required power of the at least two electronic devices to increase the output power of the at least two charging ports. . In this way, the device can be quickly charged more efficiently.

Description of the drawings

Figure 1 is a schematic diagram of the appearance of a power distribution device according to the present invention.

Figure 2 is a block diagram of the power distribution device of the present invention.

FIG. 3 is a flow chart of the method executed by the power distribution device of the present invention.

FIG. 4 is another flowchart of the method executed by the power distribution device of the present invention.

Figure 5 is another schematic diagram of the appearance of the power distribution device of the present invention.

Figure 6 is another system block diagram of the power distribution device of the present invention.

Detailed ways

The technical means adopted by the present invention to achieve the intended invention purpose will be further described below with reference to the drawings and preferred embodiments of the present invention.

Referring to FIGS. 1 to 3 , a power distribution device of the present invention includes a housing 5 , a plug 10 , at least two charging ports 20 , a charging unit 30 and a processing unit 40 . The plug 10 and the at least two charging ports 20 are provided on the housing 5 , and the charging unit 30 and the processing unit 40 are provided in the housing 5 . The charging unit 30 is electrically connected to the at least two charging ports 20 and the plug 10 respectively, and the processing unit 40 is electrically connected to the charging unit 30 . In a first embodiment, the at least two charging ports 20 are a first charging port 20A and a second charging port 20B.

As shown in FIG. 3 , the processing unit 40 determines whether a trigger signal is received (S1). When the processing unit 40 does not receive the trigger signal, the processing unit 40 controls the charging unit 30 according to a standard distribution power supply mode (S3), and the charging unit 30 correspondingly controls the output power of the at least two charging ports 20, When the processing unit 40 receives the trigger signal, the processing unit 40 controls the charging unit 30 according to a first mode (S2), and the charging unit 30 correspondingly controls the output power of the at least two charging ports 20.

In the first embodiment, the trigger signal comes from electronic devices electrically connected to the first charging port 20A or the second charging port 20B, and these electronic devices can be electrically connected to the first charging port 20A or the second charging port 20B through transmission lines. The second charging port 20B performs charging. For example, the electronic devices can generate the trigger signal by running an application program (APP), and transmit the trigger signal to the at least two charging ports 20 through the transmission line. When the charging unit 30 receives the trigger signal from the at least two charging ports 20 , the charging unit 30 forwards the trigger signal to the processing unit 40 . In other words, the processing unit 40 can receive the trigger signal from the first charging port 20A or the second charging port 20B through the charging unit 30 .

The processing unit 40 of the present invention is built with internal data, and the internal data includes the standard distribution power supply mode control content. The standard distribution power supply mode is a commonly known charging mode, that is, the at least two charging ports 20 charge the electronic devices with a fixed maximum output power. When the processing unit 40 receives the trigger signal to control the charging unit 30 according to the first mode, the processing unit 40 can flexibly adjust the output power of the at least two charging ports 20 to increase the charging rate.

In the first embodiment, the first mode is a forced distribution power supply mode. In the forced distribution power supply mode, the processing unit 40 determines one of the at least two charging ports 20 as a first priority charging port according to the trigger signal, and the processing unit 40 determines a charging port of the first priority charging port according to the trigger signal. The first required power controls the charging unit 30 to supply power to the first priority charging port with the first required power, and the processing unit 40 calculates a value based on a rated total power and the first required power of the first priority charging port. The remaining power is controlled by the charging unit 30 to supply power to the remaining charging ports with the remaining power.

When the processing unit 40 controls the charging unit 30 according to the first mode, the processing unit 40 determines one of the at least two charging ports 20 as the first priority charging port according to the trigger signal, such as the first charging port. Port 20A. And the processing unit 40 receives at least two status signals corresponding to the at least two charging ports 20 through the charging unit 30, and determines the first required power of the first priority charging port according to the at least two status signals, and the processing unit 40 The charging unit 30 controls the power supply to the first charging port 20A according to the first required power. The processing unit 40 further calculates the residual power based on the rated total power and the first required power, for example, subtracting the first required power from the rated total power to obtain the residual power, and then the processing unit 40 calculates the residual power according to the remaining power. The charging unit 30 is controlled to supply power to the second charging port 20B.

For example, the at least two status signals of the at least two charging ports 20, that is, a first status signal of the first charging port 20A, and a second status signal of the second charging port 20B, are generated from the first charging port 20A and the second charging port 20B. Electronic devices connected to a charging port 20A and the second charging port 20B. These electronic devices generate the first status signal according to their own settings, such as the communication protocol of the connection between each charging port and each electronic device. the second status signal. For example, these electronic devices will inform each charging port of the charging power required when connecting. That is to say, the first status signal and the second status signal include the charging power required by each electronic device, and each The electronic device will inform the processing unit 40 of the charging power it requires through the first status signal and the second status signal.

In addition, it stands to reason that the more power-hungry electronic devices are, the higher the charging rate will be. Therefore, in the first embodiment, when these electronic devices are connected to the at least two charging ports 20, among the electronic devices The charging port connected to the electronic device with the lowest remaining power will be correspondingly set as the first priority charging port to meet the charging needs of the electronic device that is short of power.

The processing unit 40 determines one of the at least two charging ports 20 as the first priority charging port according to the at least two status signals. In the first embodiment, the processing unit 40 determines the first priority charging port. One of the at least two charging ports 20 corresponds to the electronic device that is most short of power, that is, the charging port that most needs to meet its required output power.

Please refer to Table 1 below. In the standard distribution power supply mode, the maximum output power of the first charging port 20A is 60 watts (Watt; W), and the maximum output power of the second charging port 20B is is 30W. Moreover, the required power for charging the electronic device connected to the first charging port 20A is 90W, and the required power for charging the electronic device connected to the second charging port 20B is 30W. Assume that the rated total power is 120W, the first charging port 20A is the first priority charging port, the first required power is 90W, and the minimum output power is 10W. Therefore, in the standard distribution power supply mode, the output power of the first charging port 20A is only up to 60W and cannot be adjusted to the first required power of 90W, while the output power of the second charging port 20B is 30W. When the first mode is the forced distribution power supply mode, after receiving the trigger signal to execute the first mode, the processing unit 40 controls the first charging port 20A according to the first mode to connect the first charging port 20A to the forced distribution power supply mode. The output power is increased from 60W to 90W, and the remaining power is calculated based on the rated total power and the first required power, that is, 120W-90W=30W. Therefore, the remaining power is 30W, so the processing unit 40 controls the third The output power of the second charging port 20B remains unchanged at 30W.

Table 1

In a second embodiment, the first mode is an over-allocation power supply mode. In the over-allocation power supply mode, the processing unit 40 determines one of the at least two charging ports 20 as the first priority charging port based on the trigger signal, and the processing unit 40 determines one of the at least two charging ports 20 as the first priority charging port based on the trigger signal. The first required power controls the charging unit 30 to supply power to the first priority charging port with the first required power, and the processing unit 40 controls the charging unit 30 according to a lowest output power of the remaining charging ports to use the lowest output power. Power the remaining charging ports. The minimum output power is set by the power distribution device to ensure that the connected electronic devices can be charged to a minimum level, and the minimum output power is a built-in setting of the power distribution device. The minimum output power is usually 10W under current charging communication protocols.

For example, when the processing unit 40 controls the charging unit 30 according to the first mode, the processing unit 40 determines one of the at least two charging ports 20 as the first priority charging port according to the trigger signal, for example The first charging port 20A. And the processing unit 40 receives the at least two status signals corresponding to the at least two charging ports 20 through the charging unit 30, and determines the first required power of the first priority charging port according to the at least two status signals, and the processing unit 40 controls the charging unit 30 to supply power to the first charging port 20A according to the first required power. The processing unit 40 further determines the lowest output power of the remaining charging ports, such as the second charging port 20B, based on the at least two status signals, and then the processing unit 40 controls the charging unit 30 to charge the second charging port 20B based on the lowest output power. Charging port 20B supplies power.

Please refer to Table 2 below. Assume that the rated total power is 120W, the first charging port 20A is the first priority charging port, and the first required power of the first priority charging port is 120W. The remaining charging ports are The minimum output power is 10W, the maximum output power of the first charging port 20A is 60W, and the maximum output power of the second charging port 20B is 30W. Therefore, in the standard distribution power supply mode, the output power of the first charging port 20A is only up to 60W and cannot be adjusted to the first required power of 120W, while the output power of the second charging port 20B is 30W. When the first mode is the over-allocated power supply mode, after receiving the trigger signal to execute the first mode, the processing unit 40 controls the first charging port 20A according to the first mode to connect the first charging port to the first charging port 20A. The output power of 20A is increased from 60W to 120W, and the second charging port 20B is controlled according to the minimum output power, and the output power of the second charging port 20B is decreased from 30W to 10W.

Table 2

Referring to FIG. 4 , in a third embodiment, when the processing unit 40 determines that one of the at least two charging ports 20 is the first priority charging port according to the trigger signal, the processing unit 40 further The charging unit 30 receives at least two status signals corresponding to the at least two charging ports 20, and the processing unit 40 determines the first required power of the first priority charging port based on the at least two status signals.

The processing unit 40 further determines whether the sum of the first required power and the lowest output power is less than or equal to the rated total power ( S11).

When the sum is less than or equal to the rated total power, the processing unit 40 controls the charging unit 30 according to the first mode (S2). In the third embodiment, the first mode is the forced distribution power supply mode. In the forced distribution power supply mode, the processing unit 40 controls the charging unit 30 to supply power to the first priority charging port with the first required power, and the processing unit 40 controls the charging unit 30 to supply power to the first priority charging port according to the rated total power and the power of the first priority charging port. The first required power calculates the remaining power and controls the charging unit 30 to use the remaining power to supply power to the remaining charging ports. For example, the remaining power is the difference of the rated total power minus the first required power.

When the sum is greater than the rated total power, the processing unit 40 controls the charging unit 30 according to a second mode (S21). In the third embodiment, the second mode is the over-allocation power supply mode, and in the over-allocation power supply mode, the processing unit 40 controls the charging unit 30 to charge the first priority charging port with the first required power. The processing unit 40 controls the charging unit 30 to supply power to the remaining charging ports with the lowest output power.

Please refer to Table 3 and Table 4 below. Assume that the rated total power is 120W, the first charging port 20A is the first priority charging port, and the first required power of the first priority charging port is 90W. The minimum output power of the charging port is 10W, the maximum output power of the first charging port 20A is 60W, and the maximum output power of the second charging port 20B is 30W. Therefore, in the standard distribution power supply mode, the output power of the first charging port 20A is only up to 60W and cannot be adjusted to the first required power of 90W, while the output power of the second charging port 20B is 30W. After the processing unit 40 receives the trigger signal, the processing unit 40 first determines whether the sum of the first required power and the lowest output power is less than or equal to the rated total power. When the sum is less than or equal to the rated total power, the processing unit 40 controls the charging unit 30 according to the first mode, and conversely, the processing unit 40 controls the charging unit 30 according to the second mode.

Assume that as shown in Table 3 below, the total is 90W+10W=100W, which is less than the rated total power of 120W. Therefore, the processing unit 40 executes the first mode, and the first mode is the forced distribution power supply mode. The processing unit 40 increases the output power of the first charging port 20A from 60W to 90W, and calculates the remaining power based on the rated total power and the first required power, that is, 120W-90W=30W. Therefore, the remaining power is 30W, so the processing unit 40 controls the output power of the second charging port 20B to remain unchanged at 30W.

table 3

Assume that as shown in Table 4 below, the total is 120W+10W=130W, which is greater than the rated total power of 90W. Therefore, the processing unit 40 executes the second mode, and the second mode is the over-allocation power supply mode. The processing unit 40 increases the output power of the first charging port 20A from 60W to 120W, and controls the second charging port 20B according to the lowest output power, and decreases the output power of the second charging port 20B from 30W to 120W. 10W.

Table 4

Please refer to FIGS. 5 and 6 . In a fourth embodiment, the at least two charging ports 20 include the first charging port 20A, the second charging port 20B and a third charging port 20C, which are respectively connected to the charging port 20C. Unit 30. For example, the processing unit 40 determines according to the trigger signal that the first charging port 20A is the first priority charging port, the second charging port 20B is a second priority charging port, and the third charging port 20C is a Third priority charging port. And the processing unit 40 receives the first status signal corresponding to the first charging port 20A, the second status signal corresponding to the second charging port 20B, and a first status signal corresponding to the third charging port 20C through the charging unit 30 . Three status signals. The processing unit 40 further determines the first required power of the first priority charging port based on the first status signal, determines a second lowest output power of the second priority charging port based on the second status signal, and based on the The third status signal determines a third lowest output power of the third priority charging port. The processing unit 40 then determines whether the sum of the first required power, the second lowest output power, and the third lowest output power is based on the first required power, the second lowest output power, and the third lowest output power. Less than or equal to the rated total power.

When the sum is less than or equal to the rated total power, the processing unit 40 controls the charging unit 30 according to the first mode. In the fourth embodiment, the first mode is the forced distribution power supply mode, and in the forced distribution power supply mode, the processing unit 40 controls the charging unit 30 to supply power to the first priority charging port with the first required power. , and the processing unit 40 controls the charging unit 30 to supply power to the third priority charging port with the third lowest output power, and the processing unit 40 controls the charging unit 30 to supply power to the third priority charging port according to the rated total power, the first required power, and the third lowest output. The power calculates a residual power and controls the charging unit 30 to use the residual power to supply power to the second priority charging port.

When the sum is greater than the rated total power, the processing unit 40 controls the charging unit 30 according to the second mode. The second mode is the over-allocation power supply mode, and in the over-allocation power supply mode, the processing unit 40 controls the charging unit 30 to power the first priority charging port with the first required power, and the processing unit 40 controls The charging unit 30 supplies power to the second priority charging port with the second lowest output power, and the processing unit 40 controls the charging unit 30 to supply power to the third priority charging port with the third lowest output power.

For example, please refer to Table 5 and Table 6 below. In the standard distribution power supply mode, the maximum output power of the first charging port 20A is 60W, the maximum output power of the second charging port 20B is 30W, and The maximum output power of the third charging port 20C is 30W. The first charging port 20A is the first priority charging port, the second charging port 20B is the second priority charging port, and the third charging port 20C is the third priority charging port. The first to the third lowest output power are all 10W.

Assume that as shown in Table 5 below, the first required power of the first charging port 20A is 90W, the second required power of the second charging port 20B is 60W, and the third required power of the third charging port 20C is 30W, the total power rating is 120W. The sum of the first required power, the second minimum output power, and the third minimum output power is 90W+10W+10W=110W, which is less than the rated total power of 120W. The processing unit 40 executes the first mode, and the first mode is the forced distribution power supply mode. The processing unit 40 increases the output power of the first charging port 20A from 60W to 90W according to the first required power, and decreases the output power of the third charging port 20C from 30W to 90W according to the third lowest output power. 10W. And the processing unit 40 calculates the remaining power based on the rated total power, the first required power calculation, and the third minimum output power, that is, 120W-90W-10W=20W. Therefore, the remaining power is 20W, so the processing unit 40 controls the output power of the second charging port 20B to be reduced from 30W to 20W.

table 5

Assume that as shown in Table 6 below, the first required power of the first charging port 20A is 110W, the second required power of the second charging port 20B is 60W, and the third required power of the third charging port 20C is 30W, the total power rating is 120W. The sum of the first required power, the second minimum output power, and the third minimum output power is 110W+10W+10W=130W, which is greater than the rated total power of 120W. The processing unit 40 executes the second mode, and the second mode is the over-allocation power supply mode. The processing unit 40 increases the output power of the first charging port 20A from 60W to 110W according to the first required power, and decreases the output power of the second charging port 20B from 30W to 110W according to the second minimum output power. 10W, and the output power of the third charging port 20C is reduced from 30W to 10W according to the third lowest output power.

Table 6

Please refer to Table 7 below. In a fifth embodiment, in the over-allocation power supply mode, the processing unit 40 determines one of the at least two charging ports 20 as the first priority charging according to the trigger signal. port, and the processing unit 40 controls the charging unit 30 according to the first required power of the first priority charging port, and supplies power to the first priority charging port with the first required power, and the processing unit 40 controls the charging unit 30 according to the first required power of the remaining charging ports. A standard required power is used to control the charging unit 30, and the remaining charging ports are powered with the standard required power.

For example, assuming that the rated total power is 120W, the first charging port 20A is the first priority charging port, the second charging port 20B is the second priority charging port, and the third charging port 20C is the third Priority charging port. And the first required power of the first priority charging port is 90W, the second required power of the second priority charging port is 60W, and the third required power of the third priority charging port is 10W. The minimum output power of the first to third priority charging ports is 10W. The maximum output power of the first charging port 20A is 60W, the maximum output power of the second charging port 20B is 30W, and the maximum output power of the third charging port 20C is 30W. Therefore, in the standard distributed power supply mode, the maximum output power of the first charging port 20A is only 60W and cannot be adjusted to the first required power of 90W. The output power of the second charging port 20B and the third charging port 20C is The output power is 30W and 10W respectively. When the first mode is the over-allocated power supply mode, after receiving the trigger signal to execute the first mode, the processing unit 40 controls the first charging port 20A according to the first mode to connect the first charging port 20A to The output power is increased from 60W to 90W, and the second charging port 20B and the third charging port 20C are controlled according to the standard power demand to maintain the output power of the second charging port 20B and the third charging port respectively. 30W and 10W remain unchanged.

Table 7

The above-mentioned first required power is the charging power required by the electronic device connected to the first priority charging port. For example, assuming that the electronic device connected to the first priority charging port is a laptop computer device, its required charging power may be 90W. For another example, assuming that the electronic device connected to the first priority charging port is a smartphone, its required charging power may be 30W. As the electronic device connected to the first priority charging port changes, the first required power will also change. Make a difference. In addition, the rated total power is a conservatively set output power threshold of the power distribution device for safety reasons, so that the power distribution device does not need to worry about overheating when charging within the rated total power. When the power distribution device charges these electronic devices beyond the rated total power, it should be noted that the power distribution device may gradually increase in temperature over time. Therefore, when the power distribution device charges the electronic devices beyond the rated total power, the charging power needs to be periodically reduced to allow the power distribution device to fully dissipate heat to maintain normal operation of the power distribution device.

To fully dissipate heat of the power distribution device, the processing unit 40 is equipped with a timing unit, and when the first mode is the over-allocation power supply mode, the timing unit of the processing unit 40 further limits the execution time of the over-allocation power supply mode. , that is, the timing unit of the processing unit 40 controls the charging unit 30 to execute in a manner that does not exceed a safe time at most in the over-allocation power supply mode. And when the execution time of the over-allocation power supply mode continues to exceed the safe time, the timing unit will generate a time-out signal, so that the processing unit 40 will return to control the charging unit 30 according to the standard allocation power supply mode. This ensures that the power distribution device complies with safety regulations. For example, assuming that the rated total power is 100W, when the over-allocation power supply mode is executed, it will be used in excess of 120W. After about an hour, the housing 5 will heat up to reach the temperature limit of the safety regulations, so the design will set Excess usage can only be used for less than 50 minutes to ensure compliance with safety regulations.

In addition, the processing unit 40 is also equipped with an absolute total power upper limit. The processing unit 40 controls the charging unit 30 according to the absolute total power upper limit, so that the charging unit 30 controls the sum of all outputs of the at least two charging ports 20 in the over-allocation power supply mode to be less than or equal to the absolute total power upper limit. If in the over-allocation power supply mode, the remaining charging ports except the first priority charging port have used the lowest output power to charge the electronic devices, then the first priority charging port will use the absolute total power when the sum of all outputs is less than or equal to the absolute total power. Under the premise of the upper limit, the output power of the first priority charging port is less than or equal to (the absolute total power upper limit - the sum of the lowest output powers of the remaining charging ports). The upper limit of the absolute total power is the absolute threshold of the output power of the power distribution device. That is, when charging exceeds the absolute total power, the output of the power distribution device may be in danger of excessive power consumption. In order to avoid danger, the power distribution device must be used within the absolute total power limit under any circumstances.

Please refer to FIG. 5 and FIG. 6 . The power distribution device further includes a switch 60 . The switch 60 is disposed on the housing 5 and is electrically connected to the processing unit 40 . In addition, the trigger signal is generated by the switch 60 . When the switch 60 is pressed by a user of the power distribution device of the present invention on the housing 5 and is activated, the switch 60 correspondingly generates the trigger signal and sends the trigger signal to the processing unit 40 .

The switch 60 is used to determine which charging port of the at least two charging ports 20 the first priority charging port is. Specifically, the switch 60 has the greatest decision-making power, so when the switch 60 determines that the first priority charging port is one of the at least two charging ports 20 , the first priority charging port is affected by the switch 60 The designated charging port shall prevail, and only one of the at least two charging ports 20 can be the first priority charging port at the same time.

After the processing unit 40 receives the trigger signal, when the processing unit 40 receives another trigger signal again, the processing unit 40 switches the other charging port of the at least two charging ports 20 to the first priority charging. mouth. In other words, the user only needs to press the switch 60 multiple times, and the first priority charging port can be changed from the first charging port 20A to the second charging port 20B and then to the third charging port 20C. And it circulates between charging ports to select the first priority charging port.

The power distribution device further includes at least two light-emitting units 50 , which are disposed on the housing 5 and electrically connected to the processing unit 40 . When the processing unit 40 receives the trigger signal, the processing unit 40 changes the light signal of at least one of the at least two light-emitting units 50 . Further, when the switch 60 is pressed to change the first priority charging port, at least one of the at least two light-emitting units 50 also changes the light signal.

Specifically, when the at least two light-emitting units 50 only include a first light-emitting unit 50A and a second light-emitting unit 50B, as shown in FIG. 1 , the light signal changes as follows:

The state is 0 before being pressed, which means the power supply mode is assigned to this standard, and no light is on;

Press once to enter state 1, that is, start the first mode, causing all of the at least two light-emitting units 50 to display green lights, wherein the first priority charging port is the charging port with the highest power demand among the at least two charging ports 20, and the A corresponding light-emitting unit of the charging port corresponding to the first priority charging port changes from a green light signal to a red light signal; in this embodiment, the first priority charging port is the first charging port 20A, so the first priority charging port is the first charging port 20A. A light-emitting unit 50A displays a red light signal;

Press it again to enter state 2, change the next charging port to be the first priority charging port, that is, the second charging port 20B is the first priority charging port, so that the first light-emitting unit 50A displays a green light, and Turn the second light-emitting unit 50B from a green light signal to a red light signal;

Press it again and it will be in state 0, which means it returns to the standard distribution power supply mode, no light will light up, and it will tour the state the next time you press it.

When the at least two light-emitting units 50 include the first light-emitting unit 50A, the second light-emitting unit 50B and a third light-emitting unit 50C, as shown in FIG. 5 , the light signal changes as follows:

The state is 0 before being pressed, which means the power supply mode is assigned to this standard, and no light is on;

Press once to enter state 1, that is, start the first mode, causing all of the at least two light-emitting units 50 to display green lights, wherein the first priority charging port is the charging port with the highest power demand among the at least two charging ports 20, and the A corresponding light-emitting unit of the charging port corresponding to the first priority charging port changes from a green light signal to a red light signal; in this embodiment, the first priority charging port is the first charging port 20A, so the first priority charging port is the first charging port 20A. A light-emitting unit 50A displays a red light signal;

Press it again to enter state 2, change the next charging port to be the first priority charging port, that is, the second charging port 20B is the first priority charging port, so that the first light-emitting unit 50A displays a green light, and Turn the second light-emitting unit 50B from a green light signal to a red light signal;

Press it again to enter state 3, change the next charging port to be the first priority charging port, that is, the third charging port 20C is the first priority charging port, so that the second light-emitting unit 50B displays a green light, and Turn the third light-emitting unit 50C from a green light signal to a red light signal;

Press it again and it will be in state 0, which means it returns to the standard distribution power supply mode, no light will light up, and it will tour the state the next time you press it.

In one embodiment, the at least two charging ports 20 defined in the present invention are USB (Universal Serial Bus)-C type charging ports, and the power distribution device is a PD (Power Delivery) charger. In another embodiment, the at least two charging ports 20 are USB-A charging ports. In another embodiment, the at least two charging ports 20 are different types of USB-C and USB-A mixed charging ports.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above in preferred embodiments, they are not intended to limit the present invention. Any person familiar with the art, Without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make some changes or modifications to equivalent embodiments with equivalent changes. In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (6)

1. A power distribution apparatus, comprising:

a housing;

a plug arranged on the shell;

at least two charging ports arranged on the shell;

the charging unit is arranged in the shell and is electrically connected with the at least two charging ports and the plug respectively;

the processing unit is arranged in the shell and is electrically connected with the charging unit;

the processing unit judges whether a trigger signal is received or not;

when the processing unit does not receive the trigger signal, the processing unit controls the charging unit according to a standard distribution power supply mode, and the charging unit correspondingly controls the output power of the at least two charging ports;

when the processing unit receives the trigger signal, the processing unit controls the charging unit according to a first mode, and the charging unit correspondingly controls the output power of the at least two charging ports;

the processing unit determines one charging port of the at least two charging ports to be a first priority charging port according to the trigger signal;

the processing unit receives at least two state signals corresponding to the at least two charging ports through the charging unit, and the processing unit determines a first required power of the first priority charging port according to the at least two state signals;

the processing unit judges whether the sum of the first required power and the lowest output power is smaller than or equal to a rated total power according to the first required power of the first priority charging port and the lowest output power of the rest charging ports;

when the sum is smaller than or equal to the rated total power, the processing unit controls the charging unit according to the first mode; the first mode is a forced distribution power supply mode, and in the forced distribution power supply mode, the processing unit controls the charging unit to supply power to the first priority charging port with the first required power, calculates a residual power according to the rated total power and the first required power of the first priority charging port, and controls the charging unit to supply power to the other charging ports with the residual power;

when the sum is larger than the rated total power, the processing unit controls the charging unit according to a second mode; the second mode is an overdriving power supply mode, and in the overdriving power supply mode, the processing unit controls the charging unit to supply power to the first priority charging port with the first required power, and the processing unit controls the charging unit to supply power to the rest charging ports with the lowest output power.

2. The power distribution apparatus of claim 1, further comprising:

the switch is arranged on the shell and is electrically connected with the processing unit;

when the switch is started, the switch generates the trigger signal to the processing unit.

3. The power distribution apparatus as recited in claim 1, wherein,

when the processing unit receives the trigger signal and receives another trigger signal again, the processing unit switches another charging port of the at least two charging ports to be the first priority charging port.

4. The power distribution apparatus according to claim 1, wherein the charging unit forwards the trigger signal to the processing unit when the charging unit receives the trigger signal from the at least two charging ports.

5. The power distribution apparatus of claim 1, further comprising:

at least two light-emitting units, which are arranged on the shell and are electrically connected with the processing unit;

when the processing unit receives the trigger signal, the processing unit changes the lamp signal of at least one of the at least two light-emitting units.

6. The power distribution apparatus of claim 1 wherein the at least two charging ports comprise:

a first charging port electrically connected to the charging unit;

a second charging port electrically connected to the charging unit;

a third charging port electrically connected to the charging unit;

the processing unit determines that the first charging port is the first priority charging port according to the trigger signal, the second charging port is a second priority charging port, and the third charging port is a third priority charging port;

the processing unit receives a first state signal corresponding to the first charging port, a second state signal corresponding to the second charging port and a third state signal corresponding to the third charging port through the charging unit;

the processing unit determines the first required power of the first priority charging port according to the first state signal, determines a second lowest output power of the second priority charging port according to the second state signal, and determines a third lowest output power of the third priority charging port according to the third state signal;

the processing unit judges whether the sum of the first required power, the second lowest output power and the third lowest output power is smaller than or equal to the rated total power according to the first required power, the second lowest output power and the third lowest output power;

in the forced distribution power supply mode, the processing unit controls the charging unit to supply power to the third priority charging port with the third lowest output power, calculates the residual power according to the rated total power, the first required power and the third lowest output power, and controls the charging unit to supply power to the second priority charging port with the residual power;

in the over-distribution power supply mode, the processing unit controls the charging unit to supply power to the second priority charging port with the second lowest output power, and the processing unit controls the charging unit to supply power to the third priority charging port with the third lowest output power.