Ac / DC pdu

Abstract

The invention provides an AC / DC PDU, and the PDU comprises a power supply line which is disposed in a housing, and comprises a DC line and an AC line. The load connector is arranged on the shell, when the load connector is in a direct-current working state, the load connector is communicated with the output end of the direct-current line and disconnected with the output end of the alternating-current line, and when the load connector is in an alternating-current working state, the load connector is communicated with the output end of the alternating-current line and disconnected with the output end of the alternating-current line. The load joint is disconnected with the output end of the direct current line; the switching piece is movably arranged on the shell, when the switching piece is located at the first position, the load connector is in a direct-current working state, and when the switching piece is located at the second position, the load connector is in an alternating-current working state. Through the technical scheme provided by the invention, the problem that other plugs are loosened and the server runs unstably due to the fact that the power plug of the server needs to be frequently plugged relative to the PDU in the related technology can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of PDU, and in particular to an AC / DC PDU. Background Art

[0002] As market demand picks up and the country accelerates the construction of new infrastructure in seven major areas, including 5G, big data centers, industrial Internet, and artificial intelligence, emerging technologies such as cloud computing, artificial intelligence, edge computing, and 5G are deeply applied in the industry. The Chinese server market has a strong demand and server shipments are growing. At present, Internet operators have a large number of devices running on the network. PDU plays the role of power distribution in the computer room of the data center. There are currently a variety of power distribution modes for equipment in the computer room, mainly dual AC mains, UPS+mains, UPS+high-voltage DC, mains+high-voltage DC, etc. Among them, mains+high-voltage DC is the most economical and reliable, and it is also the most commonly used combination.

[0003] In the related art, the power distribution mode of AC power + high voltage DC generally adopts two PDUs (Power Distribution Units), and the two PDUs are connected to the AC power and the high voltage DC power supply respectively.

[0004] However, due to server updates, physical migrations, or manual adjustment of the load balance of the two PDUs, the server's power plug needs to be frequently plugged in and out relative to the PDU. During the plugging and unplugging process, other servers that are working normally may be touched, causing other plugs to loosen, which may easily cause downtime and shut down the server, resulting in greater losses. Summary of the invention

[0005] The present invention provides an AC / DC PDU to solve the problem in the related art that a power plug of a server needs to be frequently plugged in and out relative to the PDU, causing other plugs to become loose, thereby making the server run unstable.

[0006] The present invention provides an AC / DC PDU, which comprises: a shell having a DC power supply interface and an AC power supply interface; a power supply line arranged in the shell, the power supply line comprising a DC line and an AC line, the input end of the DC line being electrically connected to the DC power supply interface, and the input end of the AC line being electrically connected to the AC power supply interface; a load connector arranged on the shell, the load connector having a DC working state and an AC working state, when the load connector is in the DC working state, the load connector is connected to the output end of the DC line, and the load connector is disconnected from the output end of the AC line, when the load connector is in the AC working state, the load connector is connected to the output end of the AC line, and the load connector is disconnected from the output end of the DC line; a switching element movably arranged on the shell, the switching element having a first position and a second position, when the switching element is in the first position, the load connector is in the DC working state, and when the switching element is in the second position, the load connector is in the AC working state.

[0007] Furthermore, the load connector also has an idle state. When the load connector is in the idle state, the load connector is disconnected from the output end of the DC line and the output end of the AC line respectively. The switching element also has a third position. When the switching element is in the third position, the load connector is in the idle state.

[0008] Further, the third position is located between the first position and the second position, a positioning portion is provided on the shell, and when the switching member is in the third position, the switching member cooperates with the positioning portion.

[0009] Furthermore, the switching element includes a rocker switch, and the rocker switch is provided with a DC mark corresponding to the first position, an AC mark corresponding to the second position, and a vacant mark corresponding to the third position.

[0010] Further, a shielding interval is provided between the DC line and the AC line; and / or, the AC line includes an AC cable and a shielding layer wrapped around the outside of the AC cable.

[0011] Furthermore, the AC / DC PDU also includes a DC indicator light and an AC indicator light arranged on the load connector. When the load connector is in a DC working state, the DC indicator light is powered on and the AC indicator light is powered off. When the load connector is in an AC working state, the AC indicator light is powered on and the DC indicator light is powered off.

[0012] Furthermore, the load connector includes: a fixed circuit, which is arranged on the shell, and the fixed circuit includes a DC line and an AC line. When the load connector is in a DC working state, the output end of the DC circuit is connected to the input end of the DC line, and the output end of the AC line is disconnected from the input end of the AC line. When the load connector is in an AC working state, the output end of the AC line is connected to the input end of the AC line, and the output end of the DC line is disconnected from the input end of the DC line; a detachable socket, which is detachably arranged on the shell, and the detachable socket has a power connection part, which can be electrically connected to the output end of the DC line and the output end of the AC line.

[0013] Furthermore, a slot is provided on the shell, and the output end of the DC line and the output end of the AC line both extend into the slot. The detachable socket has a plugging platform, which is pluggable in the slot, and the power connection part is arranged on the plugging platform.

[0014] Furthermore, the AC / DC PDU also includes a display screen, which is arranged on the shell. The display screen has a signal receiving part connected to the power distribution cabinet signal, and the display screen can display real-time load data received by the signal receiving part.

[0015] Furthermore, the AC / DC PDU also includes a grounding circuit, the shell is grounded, the grounding circuit is electrically connected to the shell, and the load connector also has a grounding contact, which is electrically connected to the grounding circuit.

[0016] By applying the technical solution of the present invention, the AC / DC PDU includes a housing, a power supply line, a load connector and a switching element. The DC power supply interface is connected to a high-voltage DC power supply (e.g., 240VDC), the AC power supply interface is connected to the mains (250VAC), and the power plug of the server is connected to the load connector. The server room only needs one AC / DC PDU, and there is no need to distinguish between the AC PDU and the DC PDU. The switching element is manually operated to switch between the first position and the second position. When the switching element is in the first position, the load connector is in a DC working state, the load connector is connected to the output end of the DC line, and the load connector is disconnected from the output end of the AC line. When the switching element is in the second position, the load connector is connected to the output end of the AC line, and the load connector is disconnected from the output end of the DC line, and the load connector is in an AC working state. Therefore, when temporary load adjustment is required, there is no need to plug in and out the power plug of the server. Only by manually operating the switching element to switch between the first position and the second position, the server can switch between DC power supply and AC power supply. It is convenient and fast, avoiding loosening of plugs of other devices connected to the AC / DC PDU, and avoiding losses caused by misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of an AC / DC PDU provided according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic structural diagram of an AC / DC PDU provided according to an embodiment of the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Shell; 11. DC power supply interface; 12. AC power supply interface;

[0022] 20. Power supply line; 21. DC line; 22. AC line;

[0023] 30. Load connector;

[0024] 40. Switching element; 41. Rocker switch; 411. DC mark; 412. AC mark; 413. Vacant mark;

[0025] 51. DC indicator light; 52. AC indicator light;

[0026] 60. Display screen. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides an AC / DC PDU, which includes a housing 10, a power supply line 20, a load connector 30, and a switching element 40. The housing 10 has a DC power supply interface 11 and an AC power supply interface 12. The power supply line 20 is arranged in the housing 10. The power supply line 20 includes a DC line 21 and an AC line 22. The input end of the DC line 21 is electrically connected to the DC power supply interface 11, and the input end of the AC line 22 is electrically connected to the AC power supply interface 12. The load connector 30 is arranged on the housing 10. The load connector 30 has a DC working state and an AC working state. When the load connector 30 is switched on, the load connector 30 is switched off. 0 is in a DC working state, the load connector 30 is connected to the output end of the DC line 21, and the load connector 30 is disconnected from the output end of the AC line 22. When the load connector 30 is in an AC working state, the load connector 30 is connected to the output end of the AC line 22, and the load connector 30 is disconnected from the output end of the DC line 21. The switching element 40 is movably arranged on the housing 10. The switching element 40 has a first position and a second position. When the switching element 40 is in the first position, the load connector 30 is in a DC working state. When the switching element 40 is in the second position, the load connector 30 is in an AC working state.

[0029] The AC / DC PDU provided in this embodiment is applied, and the AC / DC PDU includes a shell 10, a power supply line 20, a load connector 30 and a switching element 40. The DC power supply interface 11 is connected to a high-voltage DC power supply (for example, 240VDC), the AC power supply interface 12 is connected to the mains (250VAC), and the power plug of the server is connected to the load connector 30. The server room only needs one AC / DC PDU, and there is no need to distinguish between AC PDU and DC PDU. The switching element 40 is switched between a first position and a second position by manual operation. When the switching element 40 is in the first position, the load connector 30 is in a DC working state, the load connector 30 is connected to the output end of the DC line 21, and the load connector 30 is disconnected from the output end of the AC line 22. When the switching element 40 is in the second position, the load connector 30 is connected to the output end of the AC line 22, the load connector 30 is disconnected from the output end of the DC line 21, and the load connector 30 is in an AC working state. Therefore, when temporary load adjustment is required, there is no need to plug in or unplug the power plug of the server. The load connector 30 can be switched between DC power supply and AC power supply by manually switching the switch 40 between the first position and the second position. This is convenient and quick, and avoids loosening of plugs of other devices connected to the AC / DC PDU, thereby avoiding losses caused by misoperation.

[0030] Furthermore, by using the AC / DC PDU provided in this embodiment, the server can select the nearest load connector 30 and switch the load connector 30 to the DC working state or AC working state required by the server by operating the switch 40 .

[0031] In this embodiment, the load connector 30 also has an idle state. When the load connector 30 is in the idle state, the load connector 30 is disconnected from the output end of the DC line 21 and the output end of the AC line 22, respectively. The switch 40 also has a third position. When the switch 40 is in the third position, the load connector 30 is in the idle state. Compared with additionally setting a switch to control the load connector 30 to be disconnected from the output end of the DC line 21 and the output end of the AC line 22, respectively, so as to switch to the idle state, the number of components of the AC / DC PDU can be reduced and the structure can be simplified.

[0032] Specifically, the AC power plug of the server is connected to one load connector 30, and the DC power plug of the server is connected to another load connector 30. When the server needs DC power supply, the load connector 30 connected to the AC power plug is switched to an idle state, and the load connector 30 connected to the DC power plug is switched to a DC state. When the server needs AC power supply, the load connector 30 connected to the AC power plug is switched to an AC state, and the load connector 30 connected to the DC power plug is switched to an idle state.

[0033] Among them, when there is a load imbalance due to the load switch at the upper end of the power supply output, it is necessary to temporarily adjust the output load to ensure the smooth operation of the power supply. The operator can manually adjust the working status of the two load connectors 30 connected to the AC power plug and DC power plug of the server respectively, that is, the input power type of the server can be changed, which is convenient for temporary load adjustment.

[0034] In this embodiment, the third position is located between the first position and the second position, and a positioning portion is provided on the housing 10. When the switching member 40 is in the third position, the switching member 40 cooperates with the positioning portion. With the above structure, when the switching member 40 switches from the first position to the second position or from the second position to the first position, the switching member 40 will pass through the third position. By utilizing the cooperation between the switching member 40 and the positioning portion when the switching member 40 is in the third position, the switching resistance of the switching member 40 is increased, thereby extending the time taken for the switching member 40 to switch from the first position to the second position or from the second position to the first position.

[0035] Specifically, there is a delay interval of more than 2 seconds when the switching member 40 switches from the first position to the second position or from the second position to the first position.

[0036] In this embodiment, the positioning portion includes a first positioning portion, a second positioning portion and a third positioning portion. When the switching member 40 is in the first position, the switching member 40 cooperates with the first positioning portion. When the switching member 40 is in the second position, the switching member 40 cooperates with the second positioning portion. When the switching member 40 is in the third position, the switching member 40 cooperates with the third positioning portion.

[0037] like Figure 1 and Figure 2 As shown, the switch 40 includes a rocker switch 41, on which a DC mark 411 corresponding to the first position, an AC mark 412 corresponding to the second position, and a vacant mark 413 corresponding to the third position are provided. By observing the DC mark 411, the AC mark 412, and the vacant mark 413, it is convenient to operate the switch 40 to switch the state of the load connector 30, thereby avoiding misoperation.

[0038] Specifically, the alternating current mark 412 is a laser-engraved character of “AC”, and the direct current mark 411 is a laser-engraved character of “DC”.

[0039] Specifically, the switching element also includes a double-pole double-throw switch.

[0040] In this embodiment, a shielding interval is provided between the DC line 21 and the AC line 22. In view of the magnetic field interference that the AC line 22 may bring to the DC line 21, the shielding interval is provided to prevent AC and DC from being simultaneously powered and affecting the load in one PDU.

[0041] Specifically, the size of the shielding interval is 2 mm.

[0042] In this embodiment, the AC line 22 includes an AC cable and a shielding layer wrapped around the outside of the AC cable. In order to prevent the AC line 22 from causing magnetic field interference to the DC line 21, the shielding layer is wrapped around the outside of the AC cable to prevent AC and DC from being powered at the same time and affecting the load in one PDU.

[0043] In this embodiment, an AC clamp and a DC clamp are provided inside the housing. When assembling the AC / DC PDU, the operator clamps the AC line 22 with the AC clamp and clamps the DC line 21 with the DC clamp, so as to fix the routing paths of the AC line 22 and the DC line 21 and improve the shielding reliability. In addition, an AC indicator corresponding to the AC clamp and a DC indicator corresponding to the DC clamp are provided inside the housing, so as to facilitate the operator to correctly arrange the AC line 22 and the DC line 21.

[0044] The applicant used a professional instrument oscilloscope to perform waveform interference tests on the AC / DC PDU in three scenarios: when only DC power is input to the DC power supply interface 11, when only AC power is input to the AC power supply interface 12, and when DC power is input to the DC power supply interface 11 and AC power is input to the AC power supply interface 12. At present, the load connector 30 has been tested both with load and without load. The load connector 30 of the AC / DC PDU, in which at least two load connectors 30 have both a load connector 30 outputting AC 220V and a load connector 30 outputting DC 240V, has also been tested. The oscilloscope test waveform has no interference, and the load devices connected to the load connector 30 are all operating normally. Long-term loading is also in progress, and no equipment abnormalities have occurred so far.

[0045] like Figure 2 As shown, the AC / DC PDU also includes a DC indicator light 51 and an AC indicator light 52 arranged on the load connector 30. When the load connector 30 is in the DC working state, the DC indicator light 51 is powered on and the AC indicator light 52 is powered off. When the load connector 30 is in the AC working state, the AC indicator light 52 is powered on and the DC indicator light 51 is powered off. By observing the DC indicator light 51 and the AC indicator light 52, it is easy to clearly distinguish whether the corresponding load connector 30 is in the DC working state or the AC working state.

[0046] Specifically, the DC indicator light 51 and the AC indicator light 52 are indicator lights of different colors for easy intuitive observation.

[0047] In this embodiment, the load connector 30 includes a fixed circuit and a detachable socket. The fixed circuit is arranged on the shell 10. The fixed circuit includes a DC line and an AC line. When the load connector 30 is in a DC working state, the output end of the DC circuit 21 is connected to the input end of the DC line, and the output end of the AC line 22 is disconnected from the input end of the AC line. When the load connector 30 is in an AC working state, the output end of the AC line 22 is connected to the input end of the AC line, and the output end of the DC line 21 is disconnected from the input end of the DC line. The detachable socket is detachably arranged on the shell 10. The detachable socket has a power connection part, which can be electrically connected to the output end of the DC line and the output end of the AC line.

[0048] In actual use, different servers have power plugs with different specifications (10A power cable plug or 16A power cable plug).

[0049] In this embodiment, by changing the specifications of the detachable socket to match the specification requirements of the power plug of the server, the server can be installed in time when it is relocated and installed to avoid delays in the construction period.

[0050] In this embodiment, a slot is provided on the housing 10, and the output ends of the DC line and the AC line extend into the slot. The detachable socket has a plugging platform, which is pluggable in the slot, and the power connection part is arranged on the plugging platform.

[0051] Specifically, a DC card slot and an AC card slot are provided on the inner wall of the slot, the output end of the DC wiring extends into the DC card slot, and the output end of the AC wiring extends into the AC card slot. The power connection portion includes a DC terminal and an AC terminal provided on the docking station. When the docking station is plugged into the slot, the AC terminal is inserted into the AC card slot and connected with the AC card slot, and the AC terminal contacts the output end of the AC wiring, and the DC terminal is inserted into the DC card slot and connected with the DC card slot, and the DC terminal contacts the output end of the DC wiring.

[0052] like Figure 1 and Figure 2 As shown, the AC / DC PDU further includes a display screen 60, which is disposed on the housing 10. The display screen 60 has a signal receiving unit connected to the power distribution cabinet signal, and the display screen 60 can display the real-time load data received by the signal receiving unit. The display screen 60 is used to display the real-time load current of the AC / DC PDU, so that the operator can directly understand the load status in the machine room without having to check at the power distribution cabinet, which is convenient for the maintenance personnel to timely understand the load and energy consumption status.

[0053] In this embodiment, the AC / DC PDU further includes a grounding circuit, the housing 10 is grounded, the grounding circuit is electrically connected to the housing 10 , and the load connector 30 further includes a grounding contact, which is electrically connected to the grounding circuit.

[0054] In this embodiment, the detachable socket of the load connector 30 adopts a three-hole socket, which has a grounding contact, a left hole contact and a right hole contact. The grounding contact, the left hole contact and the right hole contact extend into the three sockets of the three-hole socket one by one. When the load connector 30 is in the DC working state, the left hole contact is connected to the output end of the DC line 21, and the right hole contact is disconnected from the output end of the AC line 22. When the load connector 30 is in the AC working state, the right hole contact is connected to the output end of the AC line 22, and the left hole contact is disconnected from the output end of the DC line 21.

[0055] In this embodiment, the AC / DC PDU can meet the normal 5KW cabinet load demand. The AC / DC PDU can replace the two single-function PDUs commonly used in the current server room, thereby reducing costs.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0058] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0059] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0060] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An AC / DC PDU, characterized in that: The AC / DC PDU comprises: A housing (10) having a DC power supply interface (11) and an AC power supply interface (12); A power supply circuit (20) is arranged in the housing (10), the power supply circuit (20) comprising a DC circuit (21) and an AC circuit (22), the input end of the DC circuit (21) being electrically connected to the DC power supply interface (11), and the input end of the AC circuit (22) being electrically connected to the AC power supply interface (12); A load connector (30) is arranged on the housing (10), and the load connector (30) has a DC working state and an AC working state. When the load connector (30) is in the DC working state, the load connector (30) is connected to the output end of the DC line (21), and the load connector (30) is disconnected from the output end of the AC line (22). When the load connector (30) is in the AC working state, the load connector (30) is connected to the output end of the AC line (22), and the load connector (30) is disconnected from the output end of the DC line (21); A switching member (40) is movably arranged on the housing (10), and the switching member (40) has a first position and a second position. When the switching member (40) is in the first position, the load connector (30) is in the DC working state, and when the switching member (40) is in the second position, the load connector (30) is in the AC working state.

2. The AC / DC PDU according to claim 1, characterized in that: The load connector (30) also has an idle state. When the load connector (30) is in the idle state, the load connector (30) is disconnected from the output end of the DC line (21) and the output end of the AC line (22), respectively. The switching element (40) also has a third position. When the switching element (40) is in the third position, the load connector (30) is in the idle state.

3. The AC / DC PDU according to claim 2, characterized in that: The third position is located between the first position and the second position, and a positioning portion is provided on the housing (10). When the switching member (40) is in the third position, the switching member (40) cooperates with the positioning portion.

4. The AC / DC PDU according to claim 2, characterized in that: The switching element (40) comprises a rocker switch (41), on which a DC mark (411) corresponding to the first position, an AC mark (412) corresponding to the second position, and a vacant mark (413) corresponding to the third position are arranged.

5. The AC / DC PDU according to claim 1, characterized in that: A shielding interval is provided between the DC line (21) and the AC line (22); and / or the AC line (22) comprises an AC cable and a shielding layer wrapped around the outside of the AC cable.

6. The AC / DC PDU according to claim 1, characterized in that: The AC / DC PDU further comprises a DC indicator light (51) and an AC indicator light (52) arranged on the load connector (30); when the load connector (30) is in the DC working state, the DC indicator light (51) is powered on and the AC indicator light (52) is powered off; and when the load connector (30) is in the AC working state, the AC indicator light (52) is powered on and the DC indicator light (51) is powered off.

7. The AC / DC PDU according to claim 1, characterized in that: The load connector (30) comprises: A fixed circuit is arranged on the housing (10), the fixed circuit comprising a DC line and an AC line, when the load connector (30) is in the DC working state, the output end of the DC line (21) is connected to the input end of the DC line, and the output end of the AC line (22) is disconnected from the input end of the AC line; when the load connector (30) is in the AC working state, the output end of the AC line (22) is connected to the input end of the AC line, and the output end of the DC line (21) is disconnected from the input end of the DC line; A detachable socket is detachably arranged on the housing (10), and the detachable socket has an electrical connection portion, and the electrical connection portion can be electrically connected to the output end of the DC line and the output end of the AC line.

8. The AC / DC PDU according to claim 7, characterized in that: The housing (10) is provided with a slot, the output end of the DC line and the output end of the AC line both extend into the slot, the detachable socket has a plugging platform, the plugging platform is pluggably arranged in the slot, and the power connection part is arranged on the plugging platform.

9. The AC / DC PDU according to claim 1, characterized in that: The AC / DC PDU further comprises a display screen (60), wherein the display screen (60) is arranged on the housing (10), and the display screen (60) has a signal receiving unit connected to the power distribution cabinet signal, and the display screen (60) can display real-time load data received by the signal receiving unit.

10. The AC / DC PDU according to claim 1, characterized in that: The AC / DC PDU also includes a grounding circuit, the housing (10) is grounded, the grounding circuit is electrically connected to the housing (10), and the load connector (30) also has a grounding contact, which is electrically connected to the grounding circuit.

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