TW201820744A - Power distribution apparatus and method of controlling the same - Google Patents

Abstract

A power distribution apparatus includes: a power source terminal receiving an input power source, a power distribution module electrically connecting the power source terminal and converting the input power source to an output power source, at least one power distribution module individually including a plurality of output ports, and the at least one power distribution module electrically connecting the power distribution module to receive the output power source to the output ports, an input detection unit electrically connected between the power distribution module and the power source terminal, and detecting the input power source to generate an input information, at least one output detection unit electrically connecting the output ports, and detecting the output power source to generate at least one output information correspondingly, and a management unit for controlling the corresponding output ports to turn on or turn off the output power source to the input information or at least one output information.

Description

Power distribution device and its operation method

The present invention relates to a power distribution device and an operation method thereof, and more particularly to a power distribution device with leakage current detection and an operation method thereof.

The Power Distribution Unit is a power supply with multiple power outlets that provides power to the server and storage system in the frame. With the advancement of computer technology and the rapid development of the Internet, the number of services or functions provided by the Internet is increasing. Therefore, the data center composed of multiple computers or servers is also rapidly increasing. . In order to provide more services or functions on the Internet, the data center must increase the number of computers or servers in the data center, and the power supply, distribution and management of the data center will follow. In order to solve the problems of power supply, distribution and management in the data center, the data center uses the power distribution device to allocate the power required by each computer or server.

The power distribution device is divided into two types: Dump and Intelligent. The power supply is simply distributed to the device as a simple power distribution device. In addition to maintaining the original power distribution function, the current intelligent power distribution device can also pass through the remote end. The network performs power monitoring and measurement, and uses remote control to manage whether each power distribution device is powered to the connected computer or server, so that the overall power efficiency of the data center is optimized.

However, the design of existing power distribution devices often ignores the safety protection mechanism when the power distribution device is installed and turned on, even after a period of use. The ground connection of the product is especially important during installation, as there may be leakage conditions in the equipment or the machine itself. Before the power distribution unit supplies power to the equipment, it must also confirm that the power supply or power distribution is correct to avoid damage to the equipment. In addition, after using for a period of time, the switch on the power distribution unit must be switched according to the power quality or load condition to protect the back-end equipment and the entire data center.

Therefore, how to design a power distribution device and its operation method, use leakage current detection to judge whether the connection of the grounding wire is perfect, and provide a complete protection mechanism through a complete detection process; and protection parameters equipped with customized adjustment Adjusting the use configuration of the back-end equipment with flexibility is a major issue that the creators of the case have to overcome and solve.

In order to solve the above problems, the present invention provides a power distribution device to overcome the problems of the prior art. Therefore, the power distribution device of the present invention comprises: a power terminal that receives an input power source. A power distribution module electrically connects the power terminal and converts the input power source into an output power source. At least one power distribution module includes a plurality of output ports, and is electrically connected to the power distribution module to receive the output power to the output ports. An input detecting unit is electrically connected between the power distribution module and the power terminal, detects the input power and generates an input information. The at least one output detecting unit electrically connects the output ports, detects the output power, and correspondingly generates at least one output information. A management unit controls the output of the corresponding output power according to the input information or the at least one output information to turn the output power on or off.

In an embodiment, the management unit controls to turn on or off all of the output ports in the at least one power distribution module according to the input information, and controls to turn on or off the output ports according to the at least one output information.

In an embodiment, the power distribution device further includes: a leakage detecting unit electrically connected to the power terminal and outputting a leakage information to the management unit. The management unit controls the outputs to be turned off when the leakage information is greater than a first range.

In an embodiment, the at least one power distribution module further includes a first custom unit, the first custom unit is electrically connected to the output detection unit, and generates a second range.

In an embodiment, the management unit determines whether the at least one output information is within the second range, and the management unit is corresponding to the output ports that are closed outside the second range.

In an embodiment, the power distribution device further includes a second custom unit, the second custom unit is electrically connected to the management unit, and generates a third range.

In an embodiment, the management unit determines whether the input information is within the third range, and the management unit closes all of the output ports in the at least one power distribution module outside the third range.

In an embodiment, the management unit determines whether the phase difference information and the total harmonic distortion information of the input information are within the third range.

In an embodiment, the input detecting unit further includes: a detecting unit electrically connected between the power distribution module and the power terminal, and detecting the input power source as a power source information. A computing unit is electrically connected to the detecting unit, and converts the power information into the input information.

In an embodiment, the power distribution device further includes a transmission unit electrically connected to the management unit and externally transmitting information in the management unit.

In order to solve the above problems, the present invention provides a method of operating a power distribution apparatus to overcome the problems of the prior art. Therefore, the power distribution device of the present invention distributes an input power source to a plurality of output ports, each outputting an output power source, and controlling the output ports to turn the output power source on or off by a management unit, the operation method includes: When the power distribution device receives the input power, the management unit performs a first detection process to determine whether the outputs are turned on or off. (b) After the management unit executes the first detection process, if the outputs are closed, the management unit transmits the information in the management unit to the outside. (c) After the management unit executes the first detection process, if the output ports are all enabled, the management unit performs a second detection process to determine whether the outputs are turned on or off. (d) After the management unit executes the second detection process, the management unit transmits the information in the management unit to the outside, and returns to the second detection process.

In an embodiment, the first detecting process includes: (a1) when the management unit determines that the leakage information is greater than a first range, the management unit controls the outputs to be turned off. (a2) When the management unit determines that the input power or the output power is abnormal, the management unit controls the outputs to be turned off.

In an embodiment, the step (d) further includes: (d01) when the management unit executes the second detection process, if the management unit determines that the leakage information is greater than the first range, the management unit closes the These outputs are output and the information in the management unit is transmitted externally.

In an embodiment, the step (b) further comprises: (b1) the management unit continuously detecting that the outputs need to remain in a closed state.

In an embodiment, the second detection process includes: (c1) the management unit detects an input information. (c2) The management unit detects at least one output information.

In an embodiment, the step (c1) further includes: (c11) the management unit determining whether the input information is in the third range, and the management unit is configured to close the at least one power distribution module outside the third range All of these outputs are inside.

In an embodiment, the step (c1) further includes: (c12) the management unit determines whether the input information is in the third range, and the management unit is configured to open the at least one power distribution module in the third range. All of these outputs are inside.

In an embodiment, the step (c2) further includes: (c21) the management unit determines whether the at least one output information is in a second range, and the management unit is correspondingly closed outside the second range. The output of the 埠.

In an embodiment, the step (c2) further includes: (c22) the management unit determines whether the at least one output information is in a second range, and the management unit is correspondingly opened in the second range. The output of the 埠.

In order to further understand the technology, the means and the effect of the present invention in order to achieve the intended purpose, refer to the following detailed description of the invention and the accompanying drawings. The detailed description is to be understood as illustrative and not restrictive.

The technical content and detailed description of the present invention are as follows:

Please refer to FIG. 1 , which is a block diagram of a power distribution device according to the present invention. The power distribution device 100 is electrically connected to an external power line (not shown), and includes a power terminal 10, a power distribution module 20, at least one power distribution module 30, an input detection unit 40, and a management unit 60. The power terminal 10 is electrically connected to the power distribution module 20, and the power distribution module 20 receives an input power pin by the power terminal 10. The power distribution modules 30 each include a plurality of output ports 31 electrically connected to the power distribution module 20, and the power distribution module 20 distributes the input power source Pin to an output power source Po. And outputting the output power Po by each of the output ports 31. The input power source Pin includes an input voltage and an input current, and the output power source Po includes an output voltage and an output current. Taking FIG. 1 as an example, the power distribution device 100 includes two power distribution modules 30, and each power distribution module 30 includes eight output ports 31. Therefore, the power distribution module 20 is electrically connected to the two power distribution modules 30, and the input power source Pin is allocated to the output power source Po, and the output power source Po is output to a total of 16 outputs in the two power distribution modules 30. 31. It is worth mentioning that the input power source Pin can be a three-phase AC input or a single-phase AC input. Therefore, when the input power source Pin is a three-phase AC input, there are three sets of the input detection unit 40 to detect different phase input power sources Pin. . In addition, the power distribution module 20 can convert the three-phase input power Pin into a single-phase output power Po, or the single-phase input power Pin into a single-phase output power Po. Moreover, the number of the power distribution module 30 and the output port 31 shown in FIG. 1 is only a schematic example, but is not limited thereto, and is merely an example for convenience of description. Therefore, the power distribution module 20 can be electrically connected to one power distribution module 30, and the power distribution module 30 includes 10 output ports 31; or the power distribution module 20 can be electrically connected to the three power distribution modules 30, Each power distribution module 30 includes one output port 31.

Referring to FIG. 1 , the power distribution device 100 further includes an input detecting unit 40 and a leakage detecting unit 50. The input detecting unit 40 is electrically connected between the power distribution module 20 and the power terminal 10, and detects the input power Pin and generates an input information Iic. The leakage detecting unit 50 is electrically connected between the power terminal 10 and a grounding point of the power distribution device 100, and outputs a leakage information Ilc to the management unit 60. The management unit 60 receives and determines at least one output information Ioc output by the power distribution modules 30, the leakage information Ilc, and the input information Iic output by the input detecting unit 40 to control the output 埠31 output. Or the output power Po is not output. The at least one output information Ioc is the output information Ioc outputted by each power distribution module 30. Therefore, taking FIG. 1 as an example, the power distribution apparatus 100 includes two power distribution modules 30, and accordingly outputs two output information Ioc. In other words, the number of the at least one output information Ioc is determined by the number of the power distribution modules 30. It is worth mentioning that the input detecting unit 40 is intended to detect the input power source Pin input by the power terminal 10 and generate the input information Iic. Therefore, the input detecting unit 40 is not limited to be disposed between the power distribution module 20 and the power terminal 10 . For example, the input detecting unit 40 can be disposed in the power terminal 10 or the power distribution module 20 according to design requirements. Similarly, the leakage detecting unit 50 can be disposed between the power terminal 10 and the power distribution module 20 or integrated in the input detecting unit 40 according to design requirements. It is worth mentioning that in Fig. 1, the input power source Pin and the output power source Po are power supply signals, so the direction is indicated by solid arrows. The input information Iic, the leakage information Ilc, and the at least one output information Ioc are detection/report signals, so the direction is indicated by a dashed arrow.

As shown in FIG. 1 , the input detecting unit 40 further includes a detecting unit 41 and a calculating unit 42. The detecting unit 41 is electrically connected between the power distribution module 20 and the power terminal 10, and detects the input power Pin on the path of the power terminal 10 to the power distribution module 20, and outputs a power information Ii. The computing unit 42 is electrically connected to the detecting unit 41, and converts the power information Ii to the input information Iic. The detecting unit 41 detects voltage (phase voltage) information, current (phase current) information, apparent power information, effective power information, virtual power information, frequency information, and phase information of the input power source Pin of the power terminal 10 as The power information Ii is output to the computing unit 42. The calculating unit 42 calculates the phase difference information, the power factor (PF) information, and the total harmonic distortion (THD) information of the input power source Pin by using the power information, and then outputs the input information Iic to the management unit. Therefore, the input information Iic includes voltage (phase voltage) information, current (phase current) information, apparent power information, effective power information, virtual power information, frequency information, phase information, phase difference information, power of the input power source Pin. Factor (PF) information and total harmonic distortion (THD) information. The leakage detecting unit 50 detects the magnitude of the grounding impedance and the magnitude of the leakage current on the power supply terminal 10 as the leakage information Ilc, and outputs the leakage information Ilc to the management unit 60.

Referring to FIG. 1 , the power distribution device 100 further includes a second custom unit 70. The second custom unit 70 is electrically connected to the management unit 60. The second custom unit 70 can store each power distribution module. a third range Ric of 30, and outputting the third range Ric to the management unit 60, the management unit 60 determining whether each power distribution module outputs the output power by comparing the third range Ric with the input information Iic Po. The second custom unit 70 is configured to customize the third range Ric according to requirements, and the third range Ric must meet the original factory setting range of the power distribution device 100. If the user does not set the third range Ric in the second custom unit 70, the third range Ric is the original setting range. If the user has set the third range Ric, the third range Ric is mainly set by the user, but still needs to meet the original factory setting range. It is worth mentioning that the calculation unit 42 is not limited to only detecting and calculating the input information Iic, and the management unit 60 is not limited to only determine whether the input information Iic meets the third range Ric. For example, but not limited to, the calculating unit 42 can further detect the fluctuation range of the voltage or current of the input power source Pin within a predetermined period of time to the management unit 60. For example, the third range Ric can determine that the voltage of the input power source Pin of the power terminal 10 needs to be less than 30V or the current fluctuation range is less than 5A in a predetermined period of time, and is determined by the management unit 60.

As shown in FIG. 1, the power distribution device 100 further includes a transmission unit 80. The transmission unit 80 is electrically connected to the management unit 60, and the management unit 60 transmits information in the management unit to the transmission unit 80. An external interface (not shown) through which the external interface can remotely control the management unit 60. The transmission unit 80 can communicate with the external interface in a wired or wireless manner through serial communication or the Internet. The external interface can be a human interface, a computer or a handheld device. Moreover, the transmission mode can be one-way data transmission, and the user can only know the condition of the power distribution device 100, but cannot control the power distribution device 100. Or for interactive data transmission, the user can remotely control the power distribution device 100 after knowing the status of the power distribution device 100.

As shown in FIG. 1 , the power distribution device 100 further includes at least one disconnecting unit 90 . Each of the power disconnecting devices 90 is electrically connected between the power distribution module 20 and each power distribution module 30 . Turning off the disconnecting units 90 controls the output ports 31 to stop outputting the output power Po. In the example of FIG. 1 , the power distribution device 100 includes two power distribution modules 30 . The power distribution module 20 and the two power distribution modules 30 each have a disconnecting unit 90 . And the open or closed state of the disconnecting unit 90 can be transmitted to the external interface through the transmission unit 80. The disconnecting unit 90 can be a one-time breaking device, such as a fuse or a manual switch. Alternatively, the control unit 60 or the external interface controls the opening or closing of the breaking unit 90, such as a relay or a transistor switch.

Please refer to FIG. 2 , which is a schematic diagram of a circuit block of the power distribution module of the present invention. Each of the power distribution modules 30 further includes an output detecting unit 33 electrically connected between the management unit 60 and the output ports 31. The output detecting unit 33 detects the output power Po on each output port 31, and converts the output power Po on each output port 31 to the output information Ioc, and outputs the output information Ioc to the management unit 60. The output detecting unit 33 is electrically connected to each output port 31, and detects voltage information, current information, apparent power information, effective power information, and frequency information of the output power Po on each output port 31, and according to the detected The obtained information calculates the power factor (PF) information and the total harmonic distortion (THD) information of the output power Po of each output port 31, and then outputs the detected and outputted output information Ioc to the management unit 60. . Therefore, the at least one output information Ioc includes voltage information, current information, apparent power information, effective power information, frequency information, power factor (PF) information, and total harmonic distortion (THD) of the output power Po of each output port 31. )News. As shown in FIG. 2 , the power distribution module 30 includes eight output ports 31. Therefore, the output detection unit 33 correspondingly detects the output power Po on the eight output ports 31 and correspondingly converts the output power Po on the eight output ports 31. The information is 1 output information Ioc; therefore, the output information Ioc contains information of the output power Po on the 8 output ports 31. It is to be noted that, in this embodiment, the management unit 60 and the output detection units 33 are used as the communication of the at least one output information Ioc by using a regional area controller (CAN) bus. The optical coupling unit ISO is used as an isolation for the danger signal (for example, the signal is abnormal and the voltage exceeds the critical value), but is not limited thereto. In other words, the at least one output information Ioc can be transmitted by means of a wired entity connection or wireless transmission, and can also be isolated as a dangerous signal by means of a transformer or a switch in this embodiment.

As shown in Figure 2, the complex fit is shown in Figure 1. Each of the power distribution modules 30 further includes a first custom unit 34. The first custom unit 34 is electrically connected to the output detecting unit 33. The first custom unit 34 can store each output unit 31. Outputting a second range Roc of the output power Po, the second range Roc is output to the management unit 60 by the output detecting unit 33, by comparing the second range Roc with the At least one output information Ioc is used to determine whether the output ports 31 output the output power Po. The first custom unit 34 is configured to allow the user to customize the second range Roc according to requirements, and the second range Roc must meet the original factory setting range of the power distribution device 100. If the user does not set the second range Roc in the first custom unit 34, the second range Roc is the factory setting range. If the user has set the second range Roc, the second range Roc is mainly set by the user, but still needs to meet the original factory setting range. It should be noted that the output detecting unit 33 is not limited to only detecting and calculating the output information Ioc, and the management unit 60 is not limited to only determine whether the output information Ioc meets the second range Ric. For example, but not limited to, the output detecting unit 33 can further detect the fluctuation range of the voltage or current of the output power Po in a predetermined period of time to the management unit 60. For example, the second range Roc can customize the voltage of the output power Po of the output ports 31 to be less than 30V or the current fluctuation range is less than 5A for a predetermined period of time, and is determined by the management unit 60. In addition, in the embodiment, the output detecting unit 33 is configured to detect and convert the output power Po on each output port 31 as the output information Ioc, and provide the second range Roc by the first custom unit 34. Therefore, in the embodiment, the output detecting unit 33 and the first custom unit 34 can operate independently of the power distribution modules 30. The output detecting unit 33 is connected between the first custom unit 34, the management unit 60 and the power distribution modules 30, and converts the output power Po on each output port 31 into an output information Ioc, and by using the The first custom unit 34 provides a second range Roc.

As shown in FIG. 2, each of the output ports 31 includes a switch unit 311, and the management unit stops the output of the output power source Po by controlling the switch unit 311 to be turned off. . As shown in FIG. 2 , the power distribution module 30 includes eight output ports 31 , and each of the output ports 31 includes one switch unit 311 , but is not limited thereto. In other words, the number of the switching units 311 is determined by the output ports 31. The management unit 60 transmits information of turning on or off the switch unit 311 to the output detecting unit 33 after being judged or set via an external interface, and the output detecting unit 33 correspondingly turns the switch on or off by receiving the information. The unit 311 is configured to enable the output ports 31 to turn the output power Po on or off.

As shown in Figure 2, the complex fit is shown in Figure 1. Each output port 31 includes a display unit 312, each of which displays each of the output ports 31 for outputting the output power source Po or not outputting the output power source Po. When the output detecting unit 33 turns on or off the information by receiving the output ports 31 transmitted by the management unit 60, and correspondingly turns the switch unit 311 on or off, the display unit 312 displays the switch unit 311. Is on or off. Taking FIG. 2 as an example, if the first to fourth display units 312 are turned on from the top to the bottom, the output 埠 31 of the 1 to 4 can be directly visually observed. Output power Po. It should be noted that in the present invention, a light-emitting diode (LED) lamp is used as the display unit 312, but is not limited thereto. Therefore, as long as the display unit 312 which outputs the output power Po can be visually observed by the visual observation, it should be included in the embodiment.

As shown in FIGS. 1 and 2, the management unit 60 receives the leakage information Ilc, which includes the magnitude of the ground impedance and the magnitude of the leakage current. The management unit 60 determines whether the grounding of the power supply terminal 10 and the grounding of the external power supply line are perfect by determining whether the leakage information Ilc is greater than a first range Rt. In general, the lower the ground impedance and leakage current, the better the grounding condition of the device and the external power supply line. However, since the measurement of the signal is susceptible to slight errors, in order to prevent the power distribution device 100 from being too sensitive and malfunctioning, the first range Rt is preferably a ground impedance of less than 10 Ω, or a leakage current of less than 3 mA. Therefore, in this embodiment, if the grounding impedance of the leakage information Ilc is greater than 10 Ω or the leakage current is greater than 3 mA, it indicates that the ground of the power supply terminal 10 is not connected to the ground of the external power supply line. At this time, the management unit 60 turns off the switch unit 311 by controlling the output detecting units 33 to control the output ports 31 to stop outputting the output power Po. It should be noted that the leakage detecting unit 50 does not limit the leakage information Ilc that can only detect and output the input power source Pin to the management unit 60 for determination. Therefore, as long as it can be judged whether the grounding of the power supply terminal 10 and the grounding of the external power supply line are well connected, the leakage information Ilc is included in the scope of the present embodiment. For example, but not limited to, the leakage detecting unit 50 can detect and output the insulation resistance information of the input power source Pin to the management unit 60. The management unit 60 determines whether to control the insulation resistance information of the input power source Pin. The output 埠 31 turns off the output power Po.

Referring to FIG. 1 to FIG. 2, the management unit 60 receives the at least one output information Ioc and the input information Iic, and determines whether the voltage difference between the voltage of the at least one output information Ioc and the input information Iic is compared. Controlling whether the output ports 31 stop outputting the output power source Po. When the voltage difference ΔV between the input power source Pin of the power terminal 10 and the output power source Po of one of the output ports 31 is greater than a voltage error value Vd, the management unit 60 controls the output ports 31. Stop outputting the power. Generally, in a state where the power distribution apparatus 100 is in a normal operation, the input power source Pin of the power source terminal 10 and the output power source Po of the output ports 31 should be the same. However, due to the internal circuit damage of the power distribution device 100, the poor internal wiring, or the poor external wiring, the voltage difference ΔV between the input power pin Pin of the power terminal 10 and the output power Po of the output ports 31 is caused. Moreover, since the measurement of the signal is susceptible to slight errors, in order to prevent the power distribution device 100 from being too sensitive and malfunctioning, the power supply device 100 is idling, the input power pin of the power terminal 10 and the output of the output ports 31. It is preferable that the voltage error value Vd between the power sources Po is 10V. Therefore, in the present embodiment, if the voltage difference ΔV is greater than 10 V, it means that the power distribution apparatus 100 is affected by internal line damage, poor internal wiring, or poor external wiring. At this time, the management unit 60 turns off the switch unit 311 by controlling the output detecting units 33 to control the output ports 31 to stop outputting the output power Po.

As shown in FIG. 1 to FIG. 2, the management unit 60 receives the input information Iic and determines whether the input information Iic is within the third range Ric set by the second customization unit 70. The second custom unit 70 can customize the upper and lower limits of the phase voltage, the upper and lower limits of the phase current, the upper and lower limits of the frequency, the power factor threshold, and the total harmonic distortion threshold acceptable to each of the power distribution modules. Ric, and outputting the third range Ric for the management unit 60 to judge. When the input information Iic is outside the third range Ric of the at least one power distribution module 30, the management unit 60 is configured to close all of the outputs in the at least one power distribution module 30 beyond the third range Ric.埠31. Taking FIG. 1 as an example, it is assumed that the power factor threshold of one of the power distribution modules 30 is set to 0.7 and the power factor threshold of the other power distribution module 30 is set to 0.8 due to different load requirements. When the input detecting unit 40 measures that the power factor of the Pin input power source Pin is 0.75, the management unit 60 controls the eight output ports 31 in the power distribution module 30 whose power factor threshold is set to 0.8 to be off. It should be noted that, in this embodiment, the manner in which the management unit 60 turns off all the output ports 31 in the at least one power distribution module 30 is not limited. The management unit 60 can control the shutdown of the disconnecting unit 90 or the closing of the switching units 311 through the output detecting units 33 to achieve the effect of turning off the output power Po by the output port 31.

Referring to FIG. 1 to FIG. 2, the management unit 60 receives the at least one output information Ioc outputted by the one power distribution module 30, and determines whether each of the at least one output information Ioc is in the first custom unit. 34 is set within the second range Roc. The first custom unit 34 can customize the respective current upper limit, power factor threshold, and total harmonic distortion threshold of the output power Po of each output port 31. When the at least one output information Ioc is outside the second range Roc, the management unit 60 correspondingly closes the at least one output port 31 outside the second range Roc. Taking FIG. 1 as an example, assume that the total harmonic distortion threshold of four of the output ports 31 in the at least one power distribution module 30 is set to less than 10%, and the total harmonic distortion threshold of the other four output ports 31 is set. It is less than 5%. When the output detection unit 33 in the power distribution module 30 measures the total harmonic distortion of the output power Po to 8%, the management unit 60 controls the total harmonic distortion threshold setting to be less than 5% of the four outputs.埠31 is off.

As shown in FIG. 1 to FIG. 2, the user can control the output ports 31 through the external interface or the management unit 60 to output the output power Po or selectively control the output of the output ports 31. Po. Taking FIG. 1 as an example, the management unit 60 can control an odd output 埠 31 of one of the power distribution modules 30 to output the output power Po, and an even output 埠 31 of the other power distribution module 30 outputs the output power Po. And the display unit 312 next to the output port 31 of the output power source Po is turned on. It is to be noted that the display unit 312 can display the status of the output ports 31 to output the output power Po, the user actively turns off the output power Po, or the management unit 60 detects that the third range Ric is exceeded. The second range Roc stops the output of the state of the output power Po. For example, but not limited to, when the output ports 31 output the output power Po, the display unit 312 displays a green light. When the user actively turns off the outputs 31 to output the output power Po, the display unit 312 displays a yellow light. When the management unit 60 detects that the output 埠 31 stops outputting the output power Po beyond the third range Ric or the second range Roc, the display unit 312 displays a red light to achieve easy visual judgment. Outputs the effect of the 埠31 state.

It is worth mentioning that the management unit 60 is not limited to only determine whether the information is within the third range Ric and the second range Roc. For example, but not limited to, the management unit 60 can record the voltage, current, frequency, power factor (PF), and total harmonic distortion (THD) of the input power source Pin during a day or a period of time, Or during which time period, the voltage, current, frequency, power factor (PF), and total harmonic distortion (THD) are poor; so that the user can configure the load that needs better power quality to connect the outputs during the preferred period of the input power pin.埠31, or actively turning off the output ports 31 that require better power quality during the time period when the input power source Pin is in a poor time. For example, but not limited to, the management unit 60 can transmit information of the input power source Pin, information of the output power source Po, a state in which each output port 31 is turned on or off, and the third range Ric to the external interface.

Please refer to FIG. 3 , which is a flow chart of the detection of the power distribution device of the present invention. Refer to FIGS. 1 and 2 for the complex cooperation. The power distribution device 100 is electrically connected to an external power supply line (not shown), and an input power source Pin is allocated to the plurality of output ports 31 in the at least one power distribution module 30, and the outputs are controlled by a management unit 60. The operation unit 16 outputs or closes the input power source Pin. The operation method includes: first, when the power distribution device receives the input power source Pin from the external power supply line, the management unit 60 performs a first detection process to determine the The output 埠 31 is turned on or off (S100). The management unit 60 can control the off of the switch units 311 to turn off the output ports 31 through the output detecting units 33, so that the output ports 31 output or stop outputting the output power Po. Then, after the management unit executes the first detection process (S100), if the output ports 31 are closed, the management unit 60 transmits the information in the management unit to the outside (S200), and returns to the fault after waiting for the fault to be eliminated. The first detection process (S100). The management unit 60 reports the information in the management unit to the external interface through the serial communication or the Internet. The information in the management unit is, for example, but not limited to, the information of the input power pin, the information of the output power Po, The output 埠 31 is turned on or off, the input information Iic, the leakage information Ilc, the at least one output information Ioc, the first range Rt, the second range Roc, the third range Ric, and the inside of the management unit 60 Other information. The user can set the second range Roc, the third range Ric, and the custom output port 31 to be turned on or off through the external interface or the management unit 60. Then, after the management unit 60 executes the first detection process (S100), if the output ports 31 output the output power Po, the management unit 60 performs a second detection process to determine the outputs. 31 is turned on or off (S300). When the power distribution device 100 receives the input power source Pin from the external power line, the management unit 60 needs to perform the first detection process (S100) once to provide basic protection for the power distribution device 100 and the back-end load. Finally, after the management unit 60 executes the second detection process (S300), the management unit transmits the information in the management unit (S400~S600), and returns to the second detection process (S300). When the management unit 60 executes the first detection process (S100), and the output ports 31 output the output power Po, the management unit 60 continuously performs the second detection process (S300). At this time, if the management unit 60 determines that at least the output port 31 needs to be turned off and stops outputting the output power source Po, the management unit 60 controls the switch units 311 to close the switch unit 311 through the output detection units 33. Output 埠31. Until the management unit 60 determines that the at least ㄧ output 埠 31 can be turned on again and provides the output power Po, the management unit 60 controls the switch units 311 to turn on the at least ㄧ output 埠 31 through the output detecting units 33.

Please refer to FIG. 4, which is a flow chart of the normal operation of the power distribution device of the present invention. Referring to FIG. 1 to FIG. 3, the normal operation process includes: first, determining whether the leakage information is smaller than a first range (S110). When the management unit 60 determines that the leakage information Ilc is less than a first range Rt, the grounding resistance representing the leakage information Ilc is less than 10 Ω and the leakage current is less than 3 mA. Then, the input line voltage and the output voltage are detected (S120). The management unit 60 detects whether an input line voltage between the power terminal 10 and the power distribution module 20 and an output voltage between the power distribution module 20 and the output ports 31 are abnormal, when the input line voltage Or when the output voltage is normal, the first detection process is ended (S100). It is worth mentioning that the management unit 60 determines that one of the input line voltage and the output voltage is abnormal, when the management unit 60 determines the input power Pin between the power terminal 10 and the power distribution module 20 and the When the voltage difference ΔV of the power distribution module 20 to the output power Po of one of the output ports 31 is less than a voltage error value Vd, the internal wiring of the power distribution device 100 is complete and can operate normally, but Not limited to this. As long as it can judge the abnormality of the wiring of the power distribution device, it should be included in this embodiment. Then, all of the output ports are controlled to output the output power (S150). After the first detection process (S100), the management unit 60 controls the output ports 31 to output the output power Po. It is worth mentioning that the output ports 31 can output the output power source Po or selectively output the output power source Po through the external interface or the management unit 60 to effectively and flexibly manage the power distribution device 100 and connect the same. The load of the power distribution device 100.

After the above detection process, and it is judged that the power distribution apparatus 100 can operate normally, the second detection process is entered (S300). Then, the management unit detects an input information (S310). The input information Iic includes voltage (phase voltage) information, current (phase current) information, apparent power information, effective power information, virtual power information, frequency information, phase information, and phase difference information of the power source Pin of the power terminal 10. , power factor (PF) information and total harmonic distortion (THD) information. Then, the management unit detects an output information (S320). The output information Ioc includes voltage information, current information, apparent power information, effective power information, frequency information, power factor (PF) information, and total harmonic distortion (THD) information of the output power Po of the output ports 31. Then, it is judged whether or not the leakage information is smaller than a first range (S330). The management unit 60 is in the second detection process (S300), and continuously detects whether the leakage information Ilc is smaller than the first range Rt to ensure the grounding of the power distribution device 100. Finally, the information in the management unit is transmitted externally, and the second detection process is returned (S600). When the management unit 60 executes the above process (S110-S330), the management unit 60 transmits the information in the management unit to the external interface, and returns to the second detection process (S300), so that the user can know The power usage of the power distribution device 100 and the back end load.

Please refer to FIG. 5 , which is a flowchart of abnormal protection of the power distribution device of the present invention. And with reference to Figure 1~4. The abnormal protection process includes: first, ensuring that the output ports are kept in the off state (S130). When the steps (S110), (S330) determine that the leakage information Ilc is greater than the first range Rt, or the step (S120) determines that the internal line has an abnormality, the management unit 60 controls the output 埠 31 to be turned off and stops outputting the output. Power Po. The management unit 60 determines that the grounding impedance of the leakage information Ilc is greater than 10 Ω or the leakage current is greater than 3 mA, indicating that the ground of the power terminal 10 is not connected to the ground of the external power line. At this time, the management unit 60 controls the output detection units 33 to turn off the switch units 311, or control to turn off the disconnect units 90 to control all of the output ports 31 to be turned off and stop outputting the output power. Po. In the step (S120), when the management unit 60 determines the input power Pin between the power terminal 10 and the power distribution module 20 and the power distribution module 20 to one of the output ports 31, the output 31 When the voltage difference ΔV of the output power source Po is greater than a voltage error value Vd, the management unit 60 controls the output ports 31 to turn off the output power source Po. When the voltage error value Vd is greater than 10 V, it means that the power distribution apparatus 100 is affected by internal circuit damage, poor internal wiring, or poor external wiring. At this time, the management unit 60 controls the output detection unit 33 to turn off the switch unit 311, or control to turn off the disconnection units 90 to control the output ports 31 to be turned off and stop outputting the output power Po. Then, the information in the management unit is transmitted externally (S200), and after waiting for the troubleshooting, the first detection flow is returned (S100).

When the management unit 60 performs the first detection process (S100) and the output ports 31 are turned off and the output power source Po is stopped, the grounding of the power terminal 10 and the ground of the external power line are not connected or the power distribution is completed. The device 100 is affected by internal wiring damage, poor internal wiring, or poor external wiring. If the input power source Pin is delivered under this condition, the power distribution device 100 or the rear end load is liable to be damaged. Therefore, the management unit 60 continuously detects that the output ports 31 need to remain in the off state to protect the power distribution device 100 or the back end load.

Refer to Figure 5 and refer to Figures 1~4. In the second detection flow (S300), it is continuously determined whether the power source Pin input by the power distribution apparatus 100 is abnormal. Then, it is judged whether the input information is within a third range (S311). The management unit determines whether the input information Iic is within the third range Ric and serves as a basis for turning on or off the output ports 31. Finally, all the output ports (S400) in the power distribution module are turned off or on. When the input information Iic is outside the third range Ric of the at least one power distribution module 30, the management unit 60 is configured to close all of the outputs of the at least one power distribution module 30 beyond the third range Ric. 31. For example, but not limited to, the third range Ric includes a frequency between 47 Hz and 63 Hz, a voltage between 180 and 264 VAC, a power factor (PF) greater than 0.7, a total harmonic distortion (THD) of less than 10%, and a low duration. In 36 hours. When the management unit 60 determines whether the input information Iic is within the third range Ric, when the input information Iic falls within the third range Ric of the at least one power distribution module 30, the management unit 60 controls All of the output ports 31 of the at least one power distribution module 30 in the third range Ric are turned on and output the output power Po. When the input information Iic is not in the third range Ric of the at least one power distribution module 30, the management unit 60 correspondingly closes all of the output ports 31 in the power distribution module 30 not in the third range Ric until the management The unit 60 determines that the input information Iic not in the third range Ric is further in the third range Ric, and then turns on all of the output ports 31 in the power distribution module 30 in the third range Ric.

Refer to Figure 5 and refer to Figures 1~4. In the second detection flow (S300), it is continuously determined whether the output power Po of the power distribution apparatus 100 is abnormal. Then, it is determined whether the at least one output information is within a second range (S321). The management unit 60 determines whether the at least one output information Ioc is within a second range Roc and serves as a basis for turning on or off the output ports 31. Finally, the output port (S500) is turned off or on. When at least one of the output information Ioc is outside the second range Roc, the management unit 60 corresponds to the at least one output port 31 that is closed outside the second range Roc. For example, but not limited to, the second range Roc includes frequencies between 47 Hz and 63 Hz, a power factor (PF) greater than 0.7, and a total harmonic distortion (THD) of less than 30%. The management unit 60 determines whether the output information Ioc is in a second range Roc. When the at least one output information Ioc is in the second range Roc, the management unit 60 is correspondingly controlled in the second range. The at least ㄧ output 埠 31 in the Roc is turned on and outputs the output power Po. When the at least ㄧ output information Ioc is not in the second range Roc, the management unit 60 correspondingly closes the output 埠 31 not in the second range Roc until the management unit 60 determines the output information Ioc that is not in the second range Roc. When in the second range Roc, the output turns 31 in the second range Roc are turned on again.

In summary, the present invention has the following advantages:

1. The power distribution device 100 is provided with an input power source Pin and an output power source Po. When the power distribution device 100 detects that the input power source Pin or the output power source Po is abnormal, the management unit 60 and the external interface are notified to achieve a stable input power source. Pin and output power Po quality.

2. The power distribution device 100 is provided with leakage current detection: when the grounding line of the power distribution device 100 is not connected or even connected to the grounding wire, the management unit 60 and the external interface are notified to avoid the danger of causing human body electrical danger;

3. The power distribution device 100 has a detection before power transmission and continuous detection during operation: a complete detection process is designed for the power distribution device 100 to provide a complete protection mechanism;

4. The power distribution device 100 is equipped with a customized adjustment protection parameter: the user can customize the protection parameters of each power distribution module 30 to adjust the effectiveness of the back end load configuration.

However, the above description is only for the detailed description and the drawings of the preferred embodiments of the present invention, and the present invention is not limited thereto, and is not intended to limit the present invention. The scope of the patent application is intended to be included in the scope of the present invention, and any one skilled in the art can readily appreciate it in the field of the present invention. Variations or modifications may be covered by the patents in this case below.

100‧‧‧Power distribution unit

10‧‧‧Power terminal

20‧‧‧Power distribution module

30‧‧‧Power distribution module

31‧‧‧ Output埠

311‧‧‧Switch unit

312‧‧‧Display unit

33‧‧‧Output detection unit

34‧‧‧First custom unit

40‧‧‧Input detection unit

41‧‧‧Detection unit

42‧‧‧Computation unit

50‧‧‧Leakage detection unit

60‧‧‧Management unit

70‧‧‧Self Custom Unit

80‧‧‧Transmission unit

90‧‧‧Disconnection unit

Pin‧‧‧ input power

Po‧‧‧Output power supply

ΔV‧‧‧voltage difference

Vd‧‧‧ voltage error value

Ii‧‧‧Power Information

Iic‧‧‧Enter information

Ilc‧‧‧Leakage Information

Ioc‧‧‧ output information

Ric‧‧‧ third range

Roc‧‧‧ second range

Rt‧‧‧ first range

(S100)~ (S600) ‧ ‧ steps

1 is a block diagram of a circuit of a power distribution device of the present invention;

2 is a schematic block diagram of a circuit of the power distribution module of the present invention;

3 is a flow chart of detecting a power distribution device of the present invention;

Figure 4 is a flow chart showing the normal operation of the power distribution device of the present invention;

FIG. 5 is a flow chart of abnormal protection of the power distribution device of the present invention.

Claims (18)

A power distribution device includes: a power terminal receiving an input power; a power distribution module electrically connected to the power terminal, and receiving the input power and outputting an output power; at least one power distribution module Each of the system includes a plurality of output ports, and is electrically connected to the power distribution module to receive the output power to the output ports. An input detection unit is electrically connected to the power distribution module and the power terminal. Between the detection of the input power and generate an input information; at least one output detection unit is electrically connected to the output ports, detecting the output power and correspondingly generating at least one output information; a management unit is based on the input information The at least one output information controls the corresponding outputs to turn the output power on or off. The power distribution device of claim 1, wherein the management unit controls to turn on or off all of the output ports in the at least one power distribution module according to the input information, and controls whether to turn on or off according to the at least one output information. The output is 埠. The power distribution device of claim 1, wherein the power distribution device further comprises: a leakage detecting unit electrically connected to the power terminal and outputting a leakage information to the management unit; wherein the management unit is When the leakage information is greater than a first range, the outputs are controlled to be turned off. The power distribution device of claim 1, wherein each of the at least one power distribution module further includes a first custom unit, the first custom unit is electrically connected to the output detection unit, and generates a first Two ranges. The power distribution device of claim 4, wherein the management unit determines whether the at least one output information is within the second range, and the management unit is corresponding to the outputs that are closed outside the second range. port. The power distribution device of claim 1, wherein the power distribution device further comprises a second custom unit, the second custom unit is electrically connected to the management unit, and generates a third range. The power distribution device of claim 6, wherein the management unit determines whether the input information is within the third range, and the management unit is closed in the at least one power distribution module outside the third range. All of these outputs are 埠. The power distribution device of claim 7, wherein the management unit determines whether the phase difference information and the total harmonic distortion information of the input information are within the third range. The power distribution device of claim 1, wherein the input detecting unit further comprises: a detecting unit electrically connected between the power distribution module and the power terminal, and detecting the input power, and outputting a Power information; a computing unit electrically connected to the detecting unit and converting the power information into the input information. The power distribution device of claim 1, wherein the power distribution device further comprises a transmission unit electrically connected to the management unit and externally transmitting information in the management unit. A power distribution device operating method, the power distribution device is configured to allocate an input power to a plurality of outputs, each outputting an output power, and controlling the outputs to be turned on or off by a management unit, the operation method includes: (a) when the power distribution device receives the input power, the management unit performs a first detection process to determine whether the outputs are turned on or off; (b) after the management unit performs the first detection process, If the output is closed, the management unit transmits the information in the management unit to the outside; (c) after the management unit executes the first detection process, if the output ports are all enabled, the management unit performs a second detection process to determine whether the outputs are turned on or off; (d) after the management unit executes the second detection process, the management unit transmits the information in the management unit and returns to the second detection process. . The method for operating a power distribution device according to claim 11, wherein the first detection process comprises: (a1) when the management unit determines that a leakage information is greater than a first range, the management unit controls the outputs. shut down; The method of operating a power distribution device according to claim 11, wherein the step (b) further comprises: (b1) the management unit continuously detecting that the outputs need to remain in a closed state. The method for operating a power distribution device according to claim 11, wherein the second detection process comprises: (c1) the management unit detects an input information; (c2) the management unit detects at least one output information. The method for operating a power distribution device according to claim 14, wherein the step (c1) further comprises: (c11) the management unit determining whether the input information is within the third range and closing outside the third range All of the output ports in the at least one power distribution module. The method for operating a power distribution device according to claim 14, wherein the step (c1) further comprises: (c12) the management unit determining whether the input information is within the third range and opening in the third range All of the output ports in the at least one power distribution module. The method for operating a power distribution device according to claim 14, wherein the step (c2) further comprises: (c21) determining, by the management unit, whether the at least one output information is in a second range, and correspondingly closing The output ports outside the second range. The method for operating a power distribution device according to claim 14, wherein the step (c2) further comprises: (c22) the management unit determines whether the at least one output information is in a second range, and the corresponding opening is The output 埠 in the second range.