TWI622248B - Power Distribution Unit Capable of Automatically Switching Power Source - Google Patents

Abstract

The invention provides a power distribution unit capable of automatically switching a power source, comprising a plurality of input components, a plurality of output components, a power distribution module and a power switching module. A plurality of input components connect a plurality of power sources to input electrical energy. The complex output component outputs power. The power distribution module transmits electrical energy. The power switching module is switched to connect one of the plurality of input components to make the power source connected to the input component and the output component become conductive, and when it is determined that the switching condition is established, switch to another device that connects the other input component to connect the input component The power supply is electrically connected to the output components. The invention integrates the power switching module into the power distribution unit, thereby effectively eliminating the space required for erecting the power switch and improving the convenience of installation.

Description

Power distribution unit that automatically switches power supplies

The present invention relates to a power distribution unit, and more particularly to a power distribution unit that can automatically switch power supplies.

A Power Distribution Unit (PDU) is a device that can distribute the power of a single power source to multiple electronic devices according to user requirements.

Please refer to FIG. 1 , which is a schematic diagram of a conventional power switch and a power distribution unit. In view of the need for multiple power switching, an existing scheme for switching power distribution to the power distribution unit 12 with the power switch 10 as shown in FIG. 1 has been proposed.

As shown in FIG. 1 , in the above conventional solution, the power switch 10 is connected to the plurality of power sources 140 and 142 at one end and to the power distribution unit 12 at the other end. The power distribution unit 12 is coupled to the plurality of electronic devices 160,162.

Under normal circumstances, the administrator can switch the power switch 10 to the power source 140 so that the power S1 of the power source 140 flows to the power distribution unit 12 via the power switch 10, and causes the power distribution unit 12 to provide the power S1 to the plurality of electronic devices 160. 162.

When the administrator finds that the power source 140 is abnormal (such as power failure), the power switch 10 can be manually switched to the power source 142 to cause the power S2 of the power source 142 to flow to the power distribution unit 12 to cause the power distribution unit 12 to provide the power S2 instead. The plurality of electronic devices 160, 162 are provided. Therefore, the above existing solution can be used by the administrator to quickly switch the power supply to reduce the power supply stop time when the power supply is abnormal.

The prior art solution has the above advantages. However, in the prior art, an additional space is required to erect the power switch 10.

The main object of the present invention is to provide a power distribution unit that can automatically switch power supplies, which can simultaneously connect multiple power sources and automatically switch between multiple power sources.

To achieve the above objective, the present invention provides a power distribution unit that can automatically switch power, and includes a plurality of input components, a plurality of output components, a power distribution module, and a power switching module. The plurality of input components are respectively connected to a power source for inputting electrical energy. The complex output component is configured to output electrical energy. The power distribution module is coupled to the plurality of input components and transmits power to the power switching module. The power switching module includes a plurality of switching units and a switching controller. One end of each switching unit is connected to the power distribution module to connect the plurality of input components through the power distribution module, and the other end is respectively connected to at least one of the plurality of output components, and the plurality of switching units are respectively switched to connect the plurality of inputs One of the components causes the power source to which the input component is connected to be conductive to one of the plurality of output components. The switching controller is electrically connected to the plurality of switching units, and when determining that a switching condition of each of the switching units is established, controlling the switching unit to switch to another one of the input components to connect another one of the input components The power source is turned on with one of the plurality of output components.

The invention further provides a power distribution unit capable of automatically switching a power source, comprising a plurality of input components, a plurality of output components, a power distribution module and a power switching module. The plural input group The pieces are respectively connected to a power source to input electric energy. The complex output component is configured to output electrical energy. The power distribution module is coupled to the plurality of output components, processes power of each of the power sources input through each of the input components, and distributes the processed power to the plurality of output components. One end of the power switching module is connected to the plurality of input components, and the other end is connected to the power distribution module, and the power switching module is switched to connect one of the plurality of input components to enable the switched power source to be connected to the input component The power distribution module is turned on, and when it is determined that a switching condition is established, switching to another input component to connect another power source connected to the other connected input component to the power distribution module.

The invention integrates the power switching module into the power distribution unit, thereby effectively eliminating the space required for erecting the power switch and improving the convenience of installation.

10‧‧‧Power switch

12‧‧‧Power distribution unit

140, 142‧‧‧ power supply

160, 162‧‧‧ Electronic equipment

S1, S2‧‧‧ electric energy

2,6,8‧‧‧Power distribution unit

200-204, 600-604, 800-804‧‧‧ input components

22, 62, 82‧‧‧ power switching module

220, 620-622, 820-822‧‧‧Switch unit

222, 624, 824‧‧‧ switch controller

24, 64, 84‧‧‧ power distribution module

240, 640, 840‧‧‧ distribution unit

242, 642, 842‧‧‧ distribution controller

244-248‧‧‧Disconnection unit

260-264, 660-670, 860-862‧‧‧ output components

280, 680, 880‧‧‧ power measurement module

282, 682, 882‧‧‧ management modules

284, 684, 884‧‧‧ indicating modules

286, 686, 886‧‧‧ data output module

288, 688, 888‧‧‧ memory modules

300-304, 700-704, 900-904‧‧‧ power supply

320-324, 720-730, 920-922‧‧‧ Electronic equipment

34, 74, 94‧‧‧ Remote management device

400, 402, 404‧‧‧ disconnecting unit

420, 422, 424, 440‧‧‧ contacts

50‧‧‧Measurement controller

52‧‧‧Measurement module

54‧‧‧Communication interface

FIG. 1 is a schematic diagram of a conventional power switch and a power distribution unit.

2 is a structural diagram of a power distribution unit according to a first embodiment of the present invention.

FIG. 3 is a structural diagram of a switching unit of the present invention.

4 is a structural diagram of a power supply measurement module of the present invention.

FIG. 5 is a structural diagram of a power distribution unit according to a second embodiment of the present invention.

FIG. 6 is a structural diagram of a power distribution unit according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the present invention will be described in detail with reference to the drawings.

Referring first to FIG. 2, a power distribution unit architecture diagram of a first embodiment of the present invention is shown. The invention discloses a power distribution unit (PDU) 2, which can automatically switch between multiple power sources, and can provide power of different power sources to the connected plurality of electronic devices.

As shown in FIG. 2, the power distribution unit 2 mainly includes a plurality of input components (FIG. 2 takes three sets of input components 200-204 as an example), a power switching module 22, a power distribution module 24, and a plurality of output components (FIG. 2 to FIG. Group output components 260-264 are examples).

The plurality of input components 200-204 can be various electrical connectors, such as a mains plug or a USB connector, for respectively connecting a plurality of power sources 300-304 (such as a mains or a battery), and inputting the power of the connected power sources 300-304. .

The plurality of output components 260-264 can be various electrical ports, such as a commercial power socket or a USB port, for connecting the plurality of electronic devices 320-324 (such as a server), and outputting the power input by the plurality of power sources 300-304 to Connected plurality of electronic devices 320-324.

The power switching module 22 is disposed between the plurality of input components 200-204 and the power distribution module 24. Specifically, the power switching module 22 is connected to the plurality of input components 200-204 at one end and to the power distribution module 24 at the other end. The power switching module 22 is selectively switchable to one of the plurality of input components 200-204 (taking the input component 204 as an example) to electrically connect the power source 304 to which the switched input component 204 is connected to the power distribution module 24. The power of the power source 304 is caused to flow into the power distribution module 24.

Preferably, the power switching module 22 has an automatic switching function. Specifically, the administrator may preset one or more sets of switching conditions, and may further set the input components 200-204 to be switched when each switching condition is established, and store the same in the power switching module 22.

Then, after the power distribution unit 2 starts operating (the power switching module 22 initially switches to the connection input component 200 as an example), the power switching module 22 can continuously determine whether the stored switching conditions are true, and determine either When the switching condition is established, the automatic switching to another input component (for example, switching to the input component 204) is performed, so that another power source 304 connected to the switched input component 204 can be turned on with the power distribution module 24, and The power of the power source 304 replaces the power of the power source 300 to continue providing power to the power distribution module 24.

Preferably, the power switching module 22 includes a switching unit 220 and a switching controller 222 electrically connected to the switching unit 220 via a data control line (shown in phantom in FIG. 2). The switching unit 220 is controlled to change the conduction relationship between the input components 200-204 and the power distribution module 24. The switching controller 222 is configured to control the switching unit 220 to change the aforementioned conduction relationship, and can determine whether the switching condition is established. Further, the switching controller 222 includes a memory (not shown), and the switching conditions are stored in the memory of the switching controller 222.

Preferably, the foregoing switching condition may be that the timing preset time or the time value is established, the state of the input or outputted electrical energy conforms to the preset state or a combination thereof.

When the switching condition is the timing preset time or the time value is established, the switching controller 222 may include a timer (not shown), and the switching controller 222 may control the switching unit 220 when the preset time is established via the timer. Switching to one of the input components 200-204 to switch to one of the connected power sources 300-304.

For example, if the power source 300 is a mains power supply and the power source 302 is a power storage device (such as a solar power storage device), the switching unit 220 presets to switch to the connection input component 200 to connect the power source 300, and the switching condition is switched from one to four o'clock every afternoon to The power source 302, the switching controller 222 can be switched to the connection input component 200 to receive the input of the mains, and automatically switches to the connection input component 202 every day from 1 to 4 pm to obtain power from the power storage device. Thereby, the invention can effectively reduce the power consumption of the utility power during the power spike period, thereby reducing the power consumption cost.

In another example, if the switching condition is to switch the power every 24 hours, the switching controller 222 may first switch to the connection input component 200 to receive the power input by the power source 300, and automatically switch to the first time after 24 hours elapsed. The input component 202 is connected to receive the power input by the power source 302, and is automatically switched to the connection input component 204 to receive the input of the power source 304 after the second timeout of 24 hours, and automatically switches to the connection input after the second timeout of 24 hours. The component 200 receives the power input from the power source 300 again. Yes, and so on. Thereby, the present invention can effectively average the load and power consumption of each power source 300-304, thereby prolonging the life of the power supply device.

The power distribution unit 2 may further include a power measurement module 280 when the switching condition is that the information of the input or outputted electrical energy conforms to the preset information. The power measurement module 280 connects the plurality of input components 200-204 and the plurality of output components 260-264, and is electrically connected to the switching controller 222 for measuring the electrical energy received via the plurality of input components 200-204 or via the complex output component 260. -264 outputs power to the electronic devices 320-324. Moreover, the switching controller 222 can compare the information of the electrical energy measured by the power measurement module 280 with the preset information to determine whether the switching condition is established.

Preferably, the power measurement module 280 measures the voltage value, the frequency value, the current value or the power factor of the input power or the output power (Power Factor, PF, that is, the real power of the power distribution unit 2 (effective) The ratio between power) and virtual power (invalid power)). Moreover, the switching condition is that the measured voltage value is higher than the upper voltage limit (ie, the voltage is too high), the measured voltage value is lower than the lower voltage limit (ie, the voltage is too low), and the measured frequency value is higher than the upper frequency limit ( That is, the frequency is too high), the measured frequency value is lower than the lower frequency limit (ie, the frequency is too low), the ratio of the measured current value to the rated current of the corresponding power source is greater than the current threshold (ie, the current is too high) or the amount The measured power factor is less than the power factor threshold (ie, power supply 300-304 or power distribution unit 2 is abnormal).

Preferably, the power measurement module 280 measures the voltage group number or the total harmonic distortion (THD) of the currently turned on power source 300-304. Moreover, the switching condition is that the number of voltage groups does not match the preset phase number (ie, the input energy is out of phase, for example, three-phase alternating current should be able to measure three sets of voltages under normal conditions, if the measured voltage is less than three groups, It can be determined that the phase is out of phase or the total harmonic distortion value is greater than the waveform distortion threshold (ie, the power distribution unit 2 is abnormal).

The power distribution module 24 is coupled to the plurality of output components 260-264 for distributing power to the respective output components 260-264.

Preferably, the power distribution module 24 can first process the input electrical energy (such as phase inversion processing, rectification processing, buck processing or other power processing), and then distribute the processed power to each output component 260-264. .

Preferably, the power distribution module 24 includes a distribution unit 240 and a distribution controller 242 electrically connected to the distribution unit 240. The distribution unit 240 is configured to distribute the electrical energy input via each of the input components 200-204 and the power switching module 22 to the complex output components 260-264. The distribution controller 222 is used to control the power distribution module 24.

Preferably, the memory (not shown) of the distribution controller 222 can store energy processing allocation rules, wherein the power processing distribution rules record the specifications of the electrical energy output to each of the output components 260-264. The power distribution module 24 performs corresponding processing on the input power according to the power processing allocation rule, and outputs the processed power to the corresponding power output components 260-264.

For example, if the power processing distribution rule is that the output component 260 outputs 220 volts and 50 Hz of AC power, the output component 262 outputs 110 volts and 50 Hz of AC power, and the output component 264 outputs 100 volts and 60 Hz of AC power. The distribution controller 222 can control the distribution unit 240 to convert the input electrical energy into 220 volts and 50 Hz AC power and output it to the output component 260, convert the input electrical energy to 110 volts and 50 Hz AC power and output to the output component 262. The input electrical energy is converted to 100 volts and 60 Hz AC power and output to the output component 264.

In another example, if the input electrical energy is three-phase electrical energy, and the electrical energy processing distribution rule output component 260 outputs three-phase electrical energy, and the output components 262, 264 output single-phase electrical energy, the distribution controller 222 can control the distribution unit. The three-phase power is output to the output component 260, and the input electrical energy is converted to single-phase power and output to the output components 262, 264.

The present invention is applicable to more different kinds of electronic devices 320-324 by simultaneously providing different specifications of electrical energy.

In another embodiment of the present invention, the power distribution module 24 further includes a plurality of breaking units 244-248. One ends of the plurality of breaking units 244-248 are electrically connected to at least one of the distributing unit 240 and the output units 260-264, respectively. (FIG. 2 is an example in which the disconnecting units 244-248 are connected one-to-one with the output components 260-264). Moreover, the plurality of breaking units 244-248 are electrically connected to the distribution controller 242 with a data control line (shown in phantom in FIG. 2) for being controlled by the distribution controller 242 to control the distribution unit 240 and the connected output assembly 260. -264 clutches. Preferably, each of the breaking units 244-248 is a relay or a breaker.

In particular, each of the breaking units 244-248 can open an interface between the distribution unit 240 and the connected output components 260-264 when the circuit is open, and can not be energized, and the distribution unit 240 and the connected output component 260 can be connected during the passage. The -264 is electrically connected.

Still further, the distribution controller 242 can control each of the disconnect units 244-248 to open or path in accordance with the power processing allocation rules. Thereby, the present invention can output/stop outputting power to any of the output components 260-264 according to the power processing allocation rules set by the administrator.

In another embodiment of the present invention, the power distribution unit 2 further includes a data output module 286, a memory module 288, and a management module 282. The data output module 286 is used to connect to the remote management device 34 and perform communication. The memory module 288 is used to store data. The management module 282 is electrically connected to the power measurement module 280, the data output module 286, the memory module 288, the switching controller 222, and the distribution controller 242.

Preferably, the data output module 286 is a serial communication interface (such as a controller area network bus (CAN bus) interface, an RS-232 interface or an RS-485 interface) or an Ethernet interface. . When the data output module 286 is a serial communication interface, the remote management device 34 is connected via a serial communication transmission line. When the data output module 286 is an Ethernet interface, the data is connected via a regional network or the Internet. Remote management device 34.

Preferably, the management module 282 can receive the switching condition from the remote management device 34 via the data output module 286 and transmit it to the switching controller 222, or receive the power processing allocation rule and transmit it to the distribution. Controller 242. Moreover, the management module 282 can collect the information of the electrical energy measured by the power measurement module 280 from the power measurement module 280, and transmit the information of the electrical energy to the remote management device 34 via the data output module 286. Thereby, the administrator can operate the remote management device 34 to remotely monitor the power distribution unit 2.

Preferably, the management module 282 can also transmit a switching power notification to the remote management device 34 when detecting that the switching controller 222 controls the switching unit 220 to automatically switch to one of the connection complex input components 200-204. Alternatively, the management module 282 can also transmit a path/disconnection notification to the remote management device 34 upon detecting that the distribution controller 242 controls any of the disconnect units 244-248 to open or open.

In another embodiment of the present invention, the power distribution unit 22 further includes an indication module 284 (such as an LED indicator or a buzzer) electrically connected to the power measurement module 280 for issuing an alert. Specifically, the power measurement module 280 can issue an alert via the indication module 284 when determining that the power is abnormal.

In another embodiment of the present invention, the power distribution unit 2 further includes a housing (not shown). The housing completely encloses the power switching module 22, the power distribution module 24, the power measurement module 280, and the management. The module 282 and the memory module 288 partially cover the input components 200-204, the output components 260-264, the indication module 284, and the data output module 286 to provide protection.

Please refer to FIG. 3 as a diagram of the switching unit architecture of the present invention. As shown in the figure, in another embodiment of the present invention, the switching unit 220 of the power switching module 22 may include a plurality of breaking units 400-404 electrically connected to the switching controller 222, respectively. The operation principle of each of the breaking units 400-404 is the same as or similar to the breaking units 244-248 of the power distribution module 24, and will not be described herein. Preferably, the plurality of breaking units 400-404 are electrically coupled to the switching controller 222 with a data control line (shown in phantom in FIG. 3).

In this embodiment, one end of each of the breaking units 400-404 (ie, the contacts 420-424) is connected to each of the input components 200-204, and the other end (ie, the contact 440) is commonly connected to the distributing unit 240 of the power distribution module 24. . The switching controller 222 can control each of the disconnecting units 400-404 via or open circuit via a data control line to control the clutching between the contacts 420-424 and the contacts 440. Preferably, the trip units 400-404 are relays or circuit breakers.

Please refer to FIG. 4 as a structural diagram of the power measurement module of the present invention. As shown in the figure, in another embodiment of the present invention, the power measurement module 280 includes a measurement module 52, a communication interface 54, and a measurement controller 50 electrically connected to the components.

The measurement module 52 connects the plurality of input components 200-204 and the plurality of output components 260-264 to measure the electrical energy input by the plurality of input components 200-204 and/or the electrical energy output by the complex output components 260-264, respectively, and generate Information on the measured electrical energy.

The communication interface 54 is connected to the management module 282 via a transmission line for communication. Preferably, the communication interface 54 is a serial communication interface (such as a CAN bus interface, an RS-232 interface or an RS-485 interface). Preferably, the measurement module 52 is an integrated circuit chip (IC chip).

The measurement controller 50 is electrically connected to the indication module 284, and can obtain the information of the electric energy from the measurement module 52, and determine that the information of the electric energy is abnormal (such as the voltage is too high or too low, the frequency is too high or too low, the current is excessive The control indication module 284 issues an alert when the power supply 300-304 or the power distribution unit 2 is abnormal or the input power is out of phase.

Preferably, the measurement controller 50 is an integrated circuit chip (IC chip), and is connected to the indication module 284 via a general-purpose input/output (GPIO) pin, and via a universal asynchronous transceiver. The (Universal Asynchronous Receiver/Transmitter, UART) pin is connected to the measurement module 52 and the communication interface 54.

Preferably, the measurement controller 50 and the measurement module 52 both include a clock generator, and the clock generator is used to assist in operations such as control, timing, adjustment processing speed, data access, communication, and the like.

Referring to FIG. 5, it is a structural diagram of a power distribution unit according to a second embodiment of the present invention. This embodiment discloses another power distribution unit 6, wherein the input components 600-604 of the power distribution unit 6, the power distribution module 64, the distribution unit 640, the distribution controller 642, the power switching module 62, and the switching unit 620-622 , switching controller 624, output components 660-670, power measurement module 680, management module 682, indicating module 684. The data output module 686, the memory module 688, and the power supplies 700-704, the electronic devices 720-730, and the remote management device 74 shown in FIG. 5 are connected to the input component 200 of the power distribution unit 2 shown in FIG. 204, power distribution module 24, distribution unit 240, distribution controller 242, power switching module 22, switching unit 220, switching controller 222, output components 260-264, power measurement module 280, management module 282, The indicator module 284, the data output module 286, the memory module 288, and the power sources 300-304, the electronic devices 320-324, and the remote management device 34 shown in FIG. 2 are the same or similar, and are not described herein again. The differences between the two embodiments will be explained.

Compared with the first embodiment shown in FIG. 2, in the embodiment, the power switching module 62 of the power distribution unit 6 is disposed in the power distribution module 64 and the plurality of output components (FIG. 5 is six sets of output components 660). -670 for example). Moreover, the power switching module 62 includes a plurality of switching units (FIG. 5 takes the two groups of switching units 620-622 as an example). Each of the switching units 620-622 is coupled to at least one of the plurality of output components 660-670 (FIG. 5 is coupled to the first group of the plurality of output components 660-664 by the switching unit 620, and the switching unit 622 is coupled to the plurality of output components 666- The second group of 670 is an example). Moreover, each of the switching units 620-622 is electrically coupled to the switching controller 624 via a data control line (shown in phantom in FIG. 5). The distribution unit 640 is electrically coupled to the distribution controller 642 via a data control line (shown in phantom in FIG. 5).

In addition, each of the switching units 620-622 is the same as or similar to the switching unit 220 shown in FIG. 3. The power measurement module 680 is the same as or similar to the power measurement module 280 shown in FIG. .

Specifically, the power distribution module 64 is connected to the input components 600-604 at one end and to the power switching module 62 via a plurality of wires at the other end. The power distribution module 64 receives power from all of the power supplies 700-704 via the input components 600-604 and transmits the power of all of the power supplies 700-704 to the various switching units 620-622 of the power switching module 62, respectively, with different wires.

One end of each switching unit 620-622 of the power distribution unit 6 is connected to the power distribution module 64 to connect the plurality of input components 600-604 through the power distribution module 64, and the other end is connected to the first group or the first The two groups can be switched to connect one of the plurality of input components 600-604 to cause the power supplies 700-704 to which the switched input components 600-604 are connected to be conductive with the connected first or second group.

It is worth mentioning that when all the disconnecting units of any of the switching units 620-622 are disconnected, the output power can be stopped to the connected first group or the second group to be powered off; when any switching unit 620 When any of the disconnecting unit paths of the -622, the power can be output to the connected first group or the second group for power supply. Therefore, in the embodiment, the power distribution module 64 does not need to provide a disconnecting unit, and the power distribution unit 6 can also control the power-off/power supply of the first group or the second group. Therefore, the present invention can further reduce the volume of the power distribution unit 6 and effectively reduce the manufacturing cost.

In an embodiment, the administrator may preset one or more sets of switching conditions of each switching unit 620-622, and further set the input components 600-604 to be switched by the corresponding switching unit when each switching condition is established, and store The memory of the controller 624 is switched (not shown). Moreover, the switching conditions of the power switching modules 620-622 may be identical, partially identical, or completely different.

The switching controller 624 can determine whether any switching condition of each of the switching units 620-622 is established, and when determining that any of the switching conditions is established, automatically control the corresponding switching unit 620-622 to switch to another input component 600 corresponding to the connection. 604.

For example, if the switching units 620-622 are both connected to the input component 600 and are in conduction with the power source 700, the switching conditions of the switching units 620-622 are the same as "power phase loss", but the switching unit 620 is set to preferentially switch to the connection. Input component 602, switching unit 622 is set to preferentially switch to connection input component 604. In this example, when the switching controller 624 determines that the received power is out of phase (ie, the switching condition is established), the switching unit 620 is controlled to switch to the connection input component 602, and the switching unit 622 is controlled to switch to the connection input component 604.

In another example, if the switching units 620-622 are both connected to the input component 600 and are in conduction with the power source 700, the switching conditions of the switching unit 620 are "power phase loss" and "voltage too low", and the switching condition of the switching unit 622 It is "power phase loss" and "total harmonic distortion value is greater than the waveform distortion threshold".

In this example, switching controller 624 will simultaneously control switching unit 620-622 to switch to another input component 602-604 when determining that the received power is out of phase. If the switching controller 624 determines that the voltage of the received electrical energy is too low, only the control switching unit 620 switches to connect to another input component 602-604. If the switching controller 624 determines that the total harmonic distortion value of the received power is greater than the waveform distortion threshold, only the control switching unit 622 switches to connect the other input component 602-604.

Continuing to refer to FIG. 6, FIG. 6 is a structural diagram of a power distribution unit according to a third embodiment of the present invention. This embodiment discloses a further power distribution unit 8, wherein the input components 800-804 of the power distribution unit 8, the power distribution module 84, the distribution unit 840, the distribution controller 842, the power switching module 82, and the switching unit 820-822 The switching controller 824, the output component 860-862, the power measurement module 880, the management module 882, the indication module 884, the data output module 886, the memory module 888, and the power supply 900-904 shown in FIG. The electronic device 920-922 and the remote management device 94 are the input components 600-604, the power distribution module 64, the distribution unit 640, the distribution controller 642, and the power switching module 62 of the power distribution unit 6 shown in FIG. The switching unit 620-622, the switching controller 624, the output component 660-670, the power measurement module 680, the management module 682, the indication module 684, the data output module 686, the memory module 688, and the The power supplies 700-704, the electronic devices 720-730, and the remote management device 74 are the same or similar, and are not described herein again, but only the differences between the two embodiments are described.

Compared with the second embodiment shown in FIG. 5, in the embodiment, each switching unit 820-822 is connected to only a single output component 860-862 (FIG. 6 is connected to the output component 860 by the switching unit 820, and the switching unit 822 is connected to the output. Component 862 is an example, rather than a group of complex output components connected as shown in FIG. The switching unit 820-822 is the same as or similar to the switching unit 220 shown in FIG. 3, and the power measuring module 880 is the same as or similar to the power measuring module 280 shown in FIG. 4, and details are not described herein again.

When all of the disconnecting units of any of the switching units 820-822 are open, the output of electrical energy can be stopped to the connected single output components 860-862 for powering down; when any of the switching units 820-822 are disconnected Power can be output to the connected single output components 860-862 for powering. because Therefore, in the embodiment, the power distribution module 64 does not need to provide a disconnecting unit, and the power distribution unit 6 can also control the power off/power supply of each of the output components 860-862.

The invention integrates the power switching module into the power distribution unit, thereby effectively eliminating the space required for erecting the power switch and improving the convenience of installation.

By installing the power switching module between the input component and the power distribution module, the invention can conveniently switch the power source shared by all the output components when the power source is abnormal.

By setting the power switching module between the power distribution module and the output component, the invention can separately control the power used by each (group) of output components according to requirements, and can provide better flexibility of use. When the power switching module is disposed between the power distribution module and the output component, the power distribution module of the power distribution unit of the present invention can be configured without a disconnecting unit, thereby reducing manufacturing costs.

The invention provides a power switching module between the power distribution module and the output component, and can respectively control the power used by each (group) of output components according to requirements, and can be based on each (group) output component or The connected electronic device needs the power supply to accurately allocate the most appropriate power supply to the corresponding output component (that is, the different (group) output components can be respectively connected to different power sources), and can effectively improve each group (group ) Output component power quality.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent changes to the scope of the present invention are included in the scope of the present invention. Bright.

Claims (20)

A power distribution unit capable of automatically switching power supplies, comprising: a plurality of input components respectively connected to a plurality of power sources for inputting electrical energy from the plurality of power sources; a plurality of output components for outputting electrical energy; and a power distribution module connecting the plurality of input components, And transmitting the power to a power switching module; and the power switching module includes: a plurality of switching units, one end of each switching unit is connected to the power distribution module to switchably connect the plurality of input components through the power distribution module And the other end is respectively connected to at least one of the plurality of output components, and each of the switching units is respectively switched to connect the one of the plurality of input components to connect the power source connected to the input component to the output component connected to the switching unit And forming a switch; and a switching controller electrically connected to the plurality of switching units, and when determining that a switching condition of each of the switching units is established, controlling the switching unit to switch to connecting another input component to make the other input component Another connected power source is electrically connected to the output component connected to the switching unit, After switching to the other input of the other power module is connected in place of the input power before the switching component connected to the power supply to continue to provide power. The power distribution unit capable of automatically switching power according to claim 1, further comprising a power measurement module, connecting the plurality of input components and the plurality of output components, and measuring the input electrical energy or the output electrical energy. The power distribution unit capable of automatically switching power according to claim 2, wherein the power measurement module measures a voltage value, a frequency value, a current value or a power of the input power or the outputted power. Factor. The power distribution unit capable of automatically switching power according to claim 2, wherein the power measurement module measures a voltage group number or a total harmonic distortion value of the power source that is currently turned on. The power distribution unit capable of automatically switching power according to claim 4, wherein the switching condition is that the number of voltage groups does not match a preset phase number or the total harmonic distortion value is greater than a waveform distortion threshold. The power distribution unit for automatically switching power according to claim 2, further comprising: a data output module connected to a remote management device; and a management module electrically connected to the power measurement module and the The data output module collects information of the input power or the outputted power from the power measurement module, and transmits information of the collected power to the remote management device via the data output module. The power distribution unit capable of automatically switching power according to claim 6, wherein the management module is electrically connected to the power switching module, and is configured to transmit when the power switching module is switched to connect to one of the plurality of input components. A switching power notification is sent to the remote management device. The power distribution unit capable of automatically switching power according to claim 6, wherein the data output module is a serial communication interface or an Ethernet interface. The power distribution unit capable of automatically switching power supplies according to claim 1, wherein each of the switching units includes a plurality of circuit breaking units, one end of each of the circuit breaking units is respectively connected to each of the input components via the power distribution module, and the other end is connected to the same At least one of the plurality of output components, and each of the disconnecting units controls a clutch between the connected output component and the connected input component. The power distribution unit capable of automatically switching power according to claim 9, wherein the disconnecting unit is a relay or a circuit breaker. The power distribution unit of claim 1, wherein each of the switching units is connected to the single output component. The power distribution unit of claim 1, wherein each of the switching units is connected to the plurality of output components. The power distribution unit capable of automatically switching power according to claim 1, wherein the switching condition of one of the plurality of switching units is different from the switching condition of the other switching unit. A power distribution unit capable of automatically switching power supplies, comprising: a plurality of input components respectively connected to a plurality of power sources for inputting electrical energy from the plurality of power sources; a plurality of output components for outputting electrical energy; and a power distribution module connecting the plurality of output components, Allocating electrical energy to the plurality of output components; and a power switching module, one end of which is switchably connected to the plurality of input components, and the other end of which is connected to the power distribution module, the power switching module is switched to connect one of the plurality of input components to enable The power source connected to the input component is electrically connected to the power distribution module, and when it is determined that a switching condition is established, switching to another power source connected to the other input component to connect another input component to the The power distribution module is formed to be turned on, thereby continuing to supply power by replacing the power of the power source connected to the input component before the switching by another power of the power source connected to the other input component after the switching. The power distribution unit for automatically switching power according to claim 14, further comprising a power measurement module, connecting the plurality of input components and the plurality of output components, and measuring the input electrical energy or the output electrical energy. The power distribution unit capable of automatically switching power according to claim 15, wherein the power measurement module measures a voltage value, a frequency value, a current value or a power of the input power or the outputted power. Factor. The power distribution unit capable of automatically switching power according to claim 15, wherein the power measurement module measures a voltage group number or a total harmonic distortion value of the power source that is currently turned on. The power distribution unit capable of automatically switching power according to claim 17, wherein the switching condition is that the number of voltage groups does not match a preset phase number or the total harmonic distortion value is greater than a waveform distortion threshold. The power distribution unit capable of automatically switching power according to claim 15, further comprising: a data output module connected to a remote management device; and a management module electrically connected to the power measurement module and the The data output module collects information of the input power or the outputted power from the power measurement module, and transmits information of the collected power to the remote management device via the data output module. The power distribution unit for automatically switching power according to claim 14, wherein the power switching module comprises a plurality of disconnecting units, one end of each of the disconnecting units is connected to each of the input components, and the other end is connected to the power distribution module, and Each of the breaking units respectively controls a clutch between the connected input component and the power distribution module.