CN113595213A

CN113595213A - Power distribution device

Info

Publication number: CN113595213A
Application number: CN202111029816.3A
Authority: CN
Inventors: 叶家安
Original assignee: Acbel Polytech Inc
Current assignee: Acbel Polytech Inc
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-02
Anticipated expiration: 2041-09-03
Also published as: CN113595213B

Abstract

The invention discloses a power distribution device, which comprises a plug and at least two charging ports, wherein the 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 rapidly charged more efficiently.

Description

Power distribution device

Technical Field

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

Background

Any electronic device with a rechargeable battery must be charged periodically, and during charging, it is usually necessary to convert AC power into DC power through an adapter in order to charge the rechargeable battery. With the development of science and technology, part of adapters are provided with at least two charging ports for charging at least two electronic devices simultaneously. Furthermore, the current adaptor with at least two charging ports can only charge at least two electronic devices simultaneously in a fixed power distribution mode, but cannot flexibly change the power distribution mode.

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 is consistent. However, if one of the at least two electronic devices requiring charging needs to be rapidly charged in an emergency, the current adapter cannot optionally provide the electronic device requiring charging in an emergency with higher charging power than the other electronic device to be charged, i.e., cannot optionally provide the electronic device requiring charging in an emergency with shorter charging time.

In addition, in the present adapter having at least two charging ports, each charging port has a fixed power distribution, i.e. one charging port can perform fast charging, while the other charging port can only use general charging power. However, if the number of electronic devices requiring fast charging and the number of electronic devices not requiring fast charging are not compatible with the originally designed power distribution scheme, the distribution of charging power cannot be flexibly utilized.

For example, assume that the adapter has 3 charging ports and is capable of charging a plurality of electronic devices with a total wattage of 120 watts, wherein the charging power of one fast charging port is 60 watts and the charging power of two slow charging ports is 30 watts each. However, 2 of the 3 electronic devices requiring charging have a fast charging requirement, while the other has no urgent charging requirement. However, the adapter is limited by its fixed charging power distribution scheme, and only one of the electronic devices can be charged at 60 watts quickly, and the other two electronic devices can be charged at 30 watts slowly, which cannot meet the requirement that two electronic devices need to be charged at a high speed. Therefore, the current adaptor cannot flexibly adjust the output power, and cannot efficiently and quickly charge the electronic device.

Disclosure of 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 arranged on the shell, and the charging unit and the processing unit are arranged in the shell. The charging unit is electrically connected with the at least two charging ports and the plug respectively, and the processing unit is electrically connected with the charging unit. Wherein, the processing unit judges 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 connected to at least two electronic devices to be charged through at least two charging ports of the power distribution device, the processing unit can control the output power of the at least two charging ports according to the first mode to charge the at least two electronic devices in addition to charging the at least two electronic devices according to the preset standard distribution power supply mode. 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, and the output power of the at least two charging ports is increased. Therefore, the equipment can be charged more efficiently and quickly.

Drawings

Fig. 1 is an external view of a power distribution apparatus according to the present invention.

Fig. 2 is a block diagram of the power distribution apparatus of the present invention.

Fig. 3 is a flowchart of a method performed by the power distribution apparatus according to the present invention.

Fig. 4 is another flowchart of the method performed by the power distribution apparatus of the present invention.

Fig. 5 is another schematic external view of the power distribution apparatus of the present invention.

FIG. 6 is a block diagram of another system of the power distribution apparatus according to the present invention.

Detailed Description

The technical means adopted by the invention to achieve the predetermined object of the invention are further described below with reference to the drawings and the preferred embodiments of the invention.

Referring to fig. 1 to 3, a power distribution apparatus 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 disposed on the housing 5, and the charging unit 30 and the processing unit 40 are disposed 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, and 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 is from the electronic device electrically connected to the first charging port 20A or the second charging port 20B, and the electronic device can be electrically connected to the first charging port 20A or the second charging port 20B through a transmission line for charging. For example, the electronic devices may 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 transfers 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 has an internal data embedded therein, which includes the contents of the standard distributed power mode control. The standard distributed power supply mode is a conventional charging mode, i.e. the at least two charging ports 20 charge the electronic devices with a constant 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 a charging port of the at least two charging ports 20 as a first priority charging port according to the trigger signal, and the processing unit 40 controls the charging unit 30 according to a first required power of the first priority charging port to supply power to the first priority charging port with the first required power, and the processing unit 40 calculates a remaining power according to a rated total power and the first required power of the first priority charging port, and controls 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 a charging port of the at least two charging ports 20 as the first priority charging port, such as the first charging port 20A, according to the trigger signal. The processing unit 40 receives at least two status signals corresponding to the at least two charging ports 20 through the charging unit 30, 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 calculates the remaining power according to the rated total power and the first required power, for example, subtracting the first required power from the rated total power to obtain the remaining power, and then the processing unit 40 controls the charging unit 30 to supply power to the second charging port 20B according to the remaining power.

For example, the at least two status signals of the at least two charging ports 20, i.e. a first status signal of the first charging port 20A and a second status signal of the second charging port 20B, are from the electronic devices connected to the first charging port 20A and the second charging port 20B, and the electronic devices generate the first status signal and the second status signal according to their own settings, such as the communication protocol of the connection between each charging port and each electronic device. For example, the electronic devices inform the charging ports of the required charging power when they are connected, that is, the first status signal and the second status signal include the required charging power of each electronic device, and each electronic device informs the processing unit 40 of the required charging power through the first status signal and the second status signal.

In addition, as a matter of course, the electronic device that is more short of power will require a higher charging rate, and therefore, in the first embodiment, when the electronic devices are connected to the at least two charging ports 20, the charging port connected to the electronic device with the lowest remaining power among the electronic devices will be correspondingly set as the first priority charging port to meet the charging requirement 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, and in the first embodiment, the processing unit 40 determines the first priority charging port as a charging port of the at least two charging ports 20 corresponding to the most power-deficient electronic device, that is, the charging port most needing to satisfy the required output power.

Referring to table 1 below, in the standard distributed power mode, the maximum value of the output power of the first charging port 20A is 60 watts (Watt; W), and the maximum value of the output power of the second charging port 20B is 30W. 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. Assuming 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 normal distributed power mode, the output power of the first charging port 20A can only be 60W at most, and cannot be adjusted to the first required power 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, adjusts the output power of the first charging port 20A from 60W to 90W, and calculates the remaining power according to the rated total power and the first required power, i.e., 120W-90W is 30W, so that the processing unit 40 controls the output power of the second charging port 20B to maintain 30W.

TABLE 1

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

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, such as the first charging port 20A, according to the trigger signal. 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, 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, according to the at least two status signals, and then the processing unit 40 controls the charging unit 30 to supply power to the second charging port 20B according to the lowest output power.

Referring to table 2 below, assuming that the rated total power is 120W, the first charging port 20A is the first priority charging port, the first required power of the first priority charging port is 120W, the minimum output power of the remaining charging ports is 10W, the maximum value of the output power of the first charging port 20A is 60W, and the maximum value of the output power of the second charging port 20B is 30W. Therefore, in the normal distributed power mode, the output power of the first charging port 20A can only be 60W at most, and cannot be adjusted to the first required power 120W, while the output power of the second charging port 20B is 30W. When the first mode is the over-rated power 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, 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 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 receives at least two status signals corresponding to the at least two charging ports 20 through the charging unit 30, and the processing unit 40 determines the first required power of the first priority charging port according to the at least two status signals.

And the processing unit 40 further determines whether the sum of the first required power and the lowest output power of the remaining charging ports is less than or equal to the rated total power, based on the first required power of the first priority charging port and the lowest output power of the remaining charging ports (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 allocation 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 calculates the remaining power according to the rated total power and the first required power of the first priority charging port, and controls the charging unit 30 to supply power to the remaining charging ports with the remaining power. 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-allocated power mode, and in the over-allocated power 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 remaining charging ports with the lowest output power.

Referring to tables 3 and 4 below, assuming that the rated total power is 120W, the first charging port 20A is the first priority charging port, the first required power of the first priority charging port is 90W, the lowest output power of the remaining charging ports is 10W, the maximum value of the output power of the first charging port 20A is 60W, and the maximum value of the output power of the second charging port 20B is 30W. Therefore, in the normal distributed power mode, the output power of the first charging port 20A can only be 60W at most, and cannot be adjusted to the first required power 90W, while the output power of the second charging port 20B is 30W. When the processing unit 40 receives the trigger signal, the processing unit 40 first determines whether the sum of the first required power and the minimum 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, otherwise, the processing unit 40 controls the charging unit 30 according to the second mode.

Assume that the sum is 90W +10W to 100W, which is less than the rated total power of 120W, as shown in table 3 below. 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 according to the rated total power and the first required power, i.e., 120W-90W is 30W, so that the remaining power is 30W, and the processing unit 40 controls the output power of the second charging port 20B to maintain 30W.

TABLE 3

Assume that the sum is 120W + 10W-130W, which is greater than the rated total power of 90W, as shown in table 4 below. Therefore, the processing unit 40 executes the second mode, and the second mode is the over-allocated power 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 to decrease the output power of the second charging port 20B from 30W to 10W.

TABLE 4

Referring to fig. 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 unit 30. For example, the processing unit 40 determines 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 according to the trigger signal. 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 third status signal corresponding to the third charging port 20C via the charging unit 30. The processing unit 40 further determines the first required power of the first priority charging port according to the first status signal, determines a second lowest output power of the second priority charging port according to the second status signal, and determines a third lowest output power of the third priority charging port according to the third status signal. The processing unit 40 determines whether the sum of the first required power, the second minimum output power, and the third minimum output power is less than or equal to the rated total power according to the first required power, the second minimum output power, and the third minimum output power.

When the sum is less than or equal to the nominal 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 at the first required power, the processing unit 40 controls the charging unit 30 to supply power to the third priority charging port at the third minimum output power, and the processing unit 40 calculates a remaining power according to the rated total power, the first required power, and the third minimum output power, and controls the charging unit 30 to supply power to the second priority charging port at the remaining power.

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-allocated power supply mode, and in the over-allocated 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, the processing unit 40 controls the charging unit 30 to supply 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, as shown in table 5 and table 6 below, in the standard distributed power 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 powers are all 10W.

It is assumed that the first required power of the first charging port 20A is 90W, the second required power of the second charging port 20B is 60W, the third required power of the third charging port 20C is 30W, and the total rated power is 120W, as shown in table 5 below. The sum of the first required power, the second minimum output power, and the third minimum output power is 90W +10W, which is 110W, and is less than the rated total power 120W. The processing unit 40 executes the first mode, and the first mode is the forced distribution power supply mode. The processing unit 40 adjusts the output power of the first charging port 20A from 60W to 90W according to the first required power, and adjusts the output power of the third charging port 20C from 30W to 10W according to the third minimum output power. And the processing unit 40 calculates the remaining power, i.e. 120W-90W-10W is 20W, according to the rated total power, the first required power calculation and the third minimum output power, so that the remaining power is 20W, and the processing unit 40 controls the output power of the second charging port 20B to be adjusted from 30W to 20W.

TABLE 5

It is assumed that the first required power of the first charging port 20A is 110W, the second required power of the second charging port 20B is 60W, the third required power of the third charging port 20C is 30W, and the total rated power is 120W, as shown in table 6 below. The sum of the first required power, the second minimum output power, and the third minimum output power is 110W + 10W-130W, which is greater than the rated total power 120W. The processing unit 40 executes the second mode, and the second mode is the over-allocated power mode. The processing unit 40 adjusts the output power of the first charging port 20A from 60W to 110W according to the first required power, adjusts the output power of the second charging port 20B from 30W to 10W according to the second minimum output power, and adjusts the output power of the third charging port 20C from 30W to 10W according to the third minimum output power.

TABLE 6

Referring to table 7 below, in a fifth embodiment, in the over-allocated power mode, the processing unit 40 determines a charging port of the at least two charging ports 20 as the first priority charging port according to the trigger signal, and the processing unit 40 controls the charging unit 30 according to the first required power of the first priority charging port 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 standard required power of the remaining charging ports to supply power to the remaining charging ports 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 lowest output power of the first to the third priority charging ports is 10W. The maximum value of the output power of the first charging port 20A is 60W, the maximum value of the output power of the second charging port 20B is 30W, and the maximum value of the output power of the third charging port 20C is 30W. Therefore, in the normal distributed power mode, the output power of the first charging port 20A can only be 60W at most, and cannot be adjusted to the first required power 90W, while the output powers of the second charging port 20B and the third charging port 20C are 30W and 10W, respectively. When the first mode is the over-rated 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, adjusts the output power of the first charging port 20A from 60W to 90W, controls the second charging port 20B and the third charging port 20C according to the standard power demand, and maintains the output power of the second charging port 20B and the third charging port at 30W and 10W respectively.

TABLE 7

The first required power is a charging power required by the electronic device connected to the first priority charging port, for example, if the electronic device connected to the first priority charging port is a notebook computer device, the required charging power may be 90W, and if the electronic device connected to the first priority charging port is a smart phone, the required charging power may be 30W. In addition, the rated total power is an output power threshold value conservatively set by the power distribution device for safety, so that the power distribution device does not have to worry about overheating when outputting and charging within the rated total power. When the power distribution apparatus charges the electronic devices beyond the rated total power, it is noted that the power distribution apparatus may gradually increase in temperature as the usage time lengthens. Therefore, when the power distribution device exceeds the rated total power to charge the electronic devices, the charging power needs to be reduced periodically to ensure that the power distribution device can sufficiently dissipate heat, so as to maintain the normal operation of the power distribution device.

The power distribution device is fully cooled, a timing unit is disposed in the processing unit 40, and when the first mode is the excess distribution power supply mode, the timing unit of the processing unit 40 further limits the execution time of the excess distribution power supply mode, that is, the timing unit of the processing unit 40 controls the charging unit 30 to execute in the excess distribution power supply mode in a manner that the maximum time does not exceed a safe time. And when the time for executing the over-allocated power supply mode continuously exceeds the safety 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 allocated power supply mode. Thereby ensuring that the power distribution apparatus can comply with safety regulations. For example, assuming that the rated total power is 100W, when the over-distribution power supply mode is executed, the power is over-distributed to 120W, and after about 1 hour, the housing 5 is heated up to the temperature condition of safety regulation limit, so that the over-distribution power supply mode is designed to be over-distributed for less than 50 minutes to ensure that the safety regulation limit is met.

In addition, the processing unit 40 further has an upper limit of total absolute power. 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 the outputs of the at least two charging ports 20 in the over-allocated power supply mode to be less than or equal to the absolute total power upper limit. If the remaining charging ports other than the first priority charging port have used the lowest output power to charge the electronic devices in the over-allocated power mode, the first priority charging port makes the output power of the first priority charging port less than or equal to (the absolute total power upper limit-the sum of the lowest output powers of the remaining charging ports) on the premise that the sum of all the outputs is less than or equal to the absolute total power upper limit. The absolute total power upper limit is an absolute threshold value of the output power of the power distribution device, namely when the absolute total power is exceeded for charging, the output of the power distribution device risks excessive power utilization. In order to avoid risks, the power distribution device must in any case be used within the absolute total power ceiling.

Referring to fig. 5 and 6, the power distribution apparatus further includes a switch 60. The switch 60 is disposed on the housing 5 and electrically connected to the processing unit 40. In addition, the trigger signal is generated by the switch 60. When the switch 60 is pressed and activated by a user of the power distribution apparatus of the present invention on the housing 5, the switch 60 generates the trigger signal correspondingly 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. In detail, the switch 60 has the largest decision authority, so when the switch 60 decides that the first priority charging port is one of the at least two charging ports 20, the first priority charging port is the charging port designated by the switch 60, and only one of the at least two charging ports 20 is the first priority charging port at the same time.

When the processing unit 40 receives the trigger signal, and when the processing unit 40 receives another trigger signal again, the processing unit 40 switches another charging port of the at least two charging ports 20 to be the first priority charging port. In other words, the user can change the first priority charging port from the first charging port 20A to the second charging port 20B to the third charging port 20C by simply pressing the switch 60A plurality of times, and can make a round trip between the charging ports to select the first priority charging port.

The power distribution device further includes at least two light emitting units 50, and the at least two light emitting units 50 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 lamp number.

In detail, 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 lamp number changes as follows:

the state is 0 before being pressed, namely the standard distribution power supply mode is obtained, and no lamp signal is lighted;

pressing once to be in the state 1, that is, starting the first mode, so that all the at least two light-emitting units 50 display green signals, wherein the first priority charging port is the charging port with the highest required power in the at least two charging ports 20, and the charging port corresponding to the first priority charging port is changed from the green signal to the red signal by the corresponding light-emitting unit; in this embodiment, the first priority charging port is the first charging port 20A, so the first lighting unit 50A displays a red light signal;

pressing the state to 2 again, changing the next charging port to 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 signal, and the second light-emitting unit 50B changes from the green light signal to a red light signal;

pressing again to state 0, i.e. going back to the standard distribution power mode, no light is lit up and the state is gone around on the next press.

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 lamp number changes as follows:

pressing the state to 3 again, changing the next charging port to 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 signal, and the third light-emitting unit 50C changes from the green light signal to a red light signal;

The at least two charging ports 20 defined in the present invention are usb (universal Serial bus) -C type charging ports in one embodiment, and the power distribution device is a pd (power delivery) charger. The at least two charging ports 20 are USB-a type charging ports in another embodiment. The at least two charging ports 20 are, in another embodiment, USB-C and USB-a different types of hybrid charging ports.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

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 respectively and electrically connected with the at least two charging ports and the plug;

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

wherein, the processing unit judges 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;

2. The power distribution apparatus of claim 1 wherein the first mode is a forced distribution power mode;

in the forced distribution power supply mode, the processing unit determines a charging port of the at least two charging ports as a first priority charging port according to the trigger signal, controls the charging unit according to a first required power of the first priority charging port, supplies power to the first priority charging port with the first required power, calculates a residual power according to a rated total power and the first required power of the first priority charging port, and controls the charging unit to supply power to the rest charging ports with the residual power.

3. The power distribution apparatus of claim 1 wherein the first mode is an over-allocated power mode;

in the over-allocated power supply mode, the processing unit determines a charging port of the at least two charging ports as a first priority charging port according to the trigger signal, controls the charging unit according to a first required power of the first priority charging port to supply power to the first priority charging port with the first required power, and controls the charging unit according to a lowest output power of the rest of the charging ports to supply power to the rest of the charging ports with the lowest output power.

4. The power distribution apparatus of claim 1,

the processing unit determines a charging port of the at least two charging ports as 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 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 less than or equal to a rated total power or not 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 less 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 at 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 rest charging ports at 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 over-allocation power supply mode, and in the over-allocation 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 controls the charging unit to supply power to the rest of the charging ports with the lowest output power.

5. The power distribution apparatus of any of claims 1-4, further comprising:

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

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

6. The power distribution apparatus of claim 5,

when the processing unit receives the trigger signal and then 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.

7. The power distribution apparatus of any of claims 1-4, 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.

8. The power distribution apparatus of any of claims 1 to 4, further comprising:

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

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

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

the first charging port is electrically connected with the charging unit;

the second charging port is electrically connected with the charging unit;

a third charging port electrically connected to the charging unit;

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

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 a 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 minimum output power and the third minimum output power is less than or equal to a rated total power or not according to the first required power, the second minimum output power and the third minimum output power;

when the sum is less 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 by the first required power, controls the charging unit to supply power to the third priority charging port by the third lowest output power, calculates a 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 by 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 over-allocated power supply mode, and in the over-allocated power supply mode, the processing unit controls the charging unit to supply power to the first priority charging port with the first required power, controls the charging unit to supply power to the second priority charging port with the second lowest output power, and controls the charging unit to supply power to the third priority charging port with the third lowest output power.

10. The power distribution apparatus of claim 1 wherein the first mode is an over-allocated power mode;

in the over-allocated power supply mode, the processing unit determines a charging port of the at least two charging ports as a first priority charging port according to the trigger signal, controls the charging unit according to a first required power of the first priority charging port to supply power to the first priority charging port with the first required power, and controls the charging unit according to a standard required power of the other charging ports to supply power to the other charging ports with the standard required power.