Power distribution cabinet

Abstract

The utility model discloses a power distribution cabinet. The power distribution cabinet comprises a cabinet, and a UPS module, an STS module, a PLC module, an adapter plate and a shielding member which are installed in the cabinet. The shielding part forms a shielding area in the cabinet, the adapter plate is arranged in the shielding area, a first connecting seat and a second connecting seat which are connected are arranged on the adapter plate, and the PLC module is connected with the first connecting seat and / or the second connecting seat; the UPS module and the STS module are both installed on the cabinet in a sliding mode, the UPS module is provided with a first connecting terminal, the first connecting terminal is connected with or pulled out of the first connecting base through sliding of the UPS module, the STS module is provided with a second connecting terminal, and the second connecting terminal is connected with or pulled out of the second connecting base through sliding of the STS module. In the power distribution cabinet, both the UPS module and the STS module can realize hot plugging, and the interface does not need to be plugged manually in the plugging process, so that the risk of electric shock is avoided. Electromagnetic shielding can be carried out on the adapter plate through the shielding piece, and electromagnetic interference caused in the hot plug process of the module is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of power distribution technology, specifically relating to a power distribution cabinet. Background Technology

[0002] Marine electrical distribution cabinets are often equipped with uninterruptible power supplies (UPS). UPS types are becoming increasingly diverse, and their functions and performance are becoming more sophisticated. Currently, with most parallel-type UPS systems, if any module fails, the entire unit needs to be shut down for replacement. Generally, UPS systems are designed with a maintenance bypass; when a module fails, the bypass power supply is activated, ensuring uninterrupted power output. However, this design leaves some circuitry in the distribution cabinet still energized, increasing the risk of electric shock during maintenance or replacement work.

[0003] In addition, the distribution cabinet itself has high requirements for electromagnetic shielding. For parallel uninterruptible power supplies, the process of powering off and shutting down the system and plugging and unplugging interfaces can easily cause electromagnetic interference to other circuits and modules, so it is even more necessary to improve the electromagnetic shielding capability and effect.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a power distribution cabinet that can safely perform hot-swap operations.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A power distribution cabinet is characterized in that it includes a cabinet and a UPS module, an STS module, a PLC module, an adapter board, and a shielding component installed inside the cabinet; the shielding component forms a shielded area inside the cabinet, the adapter board is disposed within the shielded area, and the adapter board is provided with a first connecting seat and a second connecting seat connected together; the PLC module is connected to the first connecting seat and / or the second connecting seat; the UPS module and the STS module are slidably installed with respect to the cabinet, the UPS module is provided with a first connecting terminal, the first connecting terminal being inserted into or removed from the first connecting seat through the sliding of the UPS module, and the STS module is provided with a second connecting terminal, the second connecting terminal being inserted into or removed from the second connecting seat through the sliding of the STS module.

[0008] In one or more embodiments of this utility model, multiple UPS modules are provided, and multiple first connectors are provided and correspond one-to-one with each UPS module, and the multiple first connectors are interconnected.

[0009] In one or more embodiments of the utility model, the shielding piece includes annular conductive wool, and at least part of the annular conductive wool is arranged between the adapter plate and the cabinet.

[0010] In one or more embodiments of the utility model, the annular conductive wool includes an outer ring part and an inner ring part connected to each other, the thickness of the outer ring part is greater than the thickness of the inner ring part, the inner ring part is arranged between the adapter plate and the cabinet panel, and the outer ring part is arranged at the periphery of the adapter plate.

[0011] In one or more embodiments of the utility model, the shielding piece further includes a conductive support, and the annular conductive wool is fixedly installed with the cabinet through the conductive support.

[0012] In one or more embodiments of the utility model, the adapter plate is provided with a hot plug protection circuit connected to the first connecting seat and the second connecting seat.

[0013] In one or more embodiments of the utility model, the cabinet is provided with a mounting plate arranged between the UPS module, the STS module and the adapter plate, the mounting plate is provided with a plurality of guide holes, and the guide holes are used for guiding the first connecting terminal or the second connecting terminal.

[0014] In one or more embodiments of the utility model, the power distribution cabinet further includes a voltage monitoring relay connected to the PLC module and the input voltage; and / or

[0015] The power distribution cabinet further includes an insulation monitoring relay connected to the PLC module and the first connecting terminal.

[0016] In one or more embodiments of the utility model, the cabinet includes a cabinet door and a cabinet body, the cabinet body is provided with a grounding copper bar and a first grounding stud, and the cabinet door is provided with a second grounding stud connected to the first grounding stud.

[0017] In one or more embodiments of the utility model, the cabinet includes a cabinet door and a cabinet body, and a conductive sealing piece is arranged between the cabinet door and the cabinet body.

[0018] Compared with the prior art, in the power distribution cabinet, the UPS module and the STS module can realize hot plug, and during the plug process, manual plug interface is not required, and only the module is pulled out to complete port plug, without the risk of electric shock. The adapter plate can be electromagnetically shielded by the shielding piece, so that electromagnetic interference during the module hot plug process is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical personnel of the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work should belong to the protection scope of the present application.

[0020] Figure 1 It is an overall structural diagram of the power distribution cabinet in an embodiment of the present application.

[0021] Figure 2 It is an assembly structure diagram of the adapter plate and the shielding member in an embodiment of the present application.

[0022] Figure 3 It is an internal structure diagram of the power distribution cabinet in an embodiment of the present application.

[0023] Figure 4 It is a back structure diagram of the power distribution cabinet in an embodiment of the present application.

[0024] Figure 5 It is a bottom structure diagram of the power distribution cabinet in an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the technical personnel of the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work should belong to the protection scope of the present application.

[0026] In the specification, "coupling" or "connection" or "connection" includes both direct connection and indirect connection. Indirect connection is the connection through an intermediate medium, such as the connection through an electrically conductive medium, which can have a parasitic inductance or a parasitic capacitance; indirect connection can also include the connection through other active devices or passive devices on the basis of achieving the same or similar functional purposes, such as the connection through circuits or components such as switches, follower circuits, etc. In addition, in the specification, words such as "first", "second", etc. are mainly used to distinguish one technical feature from another technical feature, and do not necessarily require or imply a certain actual relationship, quantity or order between the technical features.

[0027] In the detailed description of this specification, reference is made to the accompanying drawings, which form a part thereof, wherein like reference numerals always denote like parts, and wherein exemplary embodiments are shown by way of example that may be implemented. It should be understood that other embodiments may be utilized, and structural or logical changes may be made, without departing from the scope of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0028] The various operations in the specification may be described sequentially as multiple discrete actions or operations in a manner most conducive to understanding the claimed subject matter. However, the order of description should not be construed as implying that these operations must be sequentially related. Specifically, these operations may not be performed in the order presented. The described operations may be performed in a different order than in the described embodiments. Various additional operations may be performed in additional embodiments and / or the described operations may be omitted.

[0029] For the purposes of this disclosure, the phrase “A and / or B” means (A), (B), or (A and B). For the purposes of this disclosure, the phrase “A, B and / or C” means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).

[0030] Various components and devices may be referred to or shown in the singular (e.g., “MOS transistor”, “transistor”, “switch”, etc.) in this document, but only for the convenience of discussion, and any element referred to in the singular may include multiple such elements as taught herein.

[0031] The description uses the phrases "in one embodiment," "in other embodiments," or "in some embodiments," each of which may refer to one or more of the same or different embodiments. Furthermore, the terms "comprising," "including," "having," etc., used with respect to embodiments of this disclosure are synonymous.

[0032] like Figure 1 As shown, in one embodiment of the present invention, the power distribution cabinet includes a cabinet 100 and a UPS module 201, an STS module 202, a PLC module 301, a voltage monitoring relay 302, an insulation monitoring relay 303, an adapter plate (not shown in the figure), and a shielding component (not shown in the figure) installed inside the cabinet 100.

[0033] UPS module 201, or Uninterruptible Power Supply, is a type of uninterruptible power supply containing an energy storage device. It is primarily used to provide uninterrupted power to equipment with high power stability requirements. The circuitry of UPS module 201 can be implemented using existing technologies.

[0034] The STS module 202, i.e. a power static transfer switch, is used for two-way power supply switching, and is a power two-choice automatic switching system. The circuit part of the STS module 202 can be realized by using the prior art.

[0035] In an embodiment, the UPS module 201 is provided with three modules, and in other embodiments, the UPS module 201 can also be provided with other numbers.

[0036] In an embodiment, the cabinet 100 can include a cabinet door 102 and a cabinet body 101, and the cabinet body 101 can include a top plate, a bottom plate, a back plate and two side plates.

[0037] In an embodiment, the power distribution cabinet further includes a plurality of busbars 401, and the busbars 401 include an input busbar and a plurality of output busbars. The input busbar is used to connect an input voltage, and the input voltage can be a 220V mains voltage. The output busbars are used to connect external loads. The input busbar and the output busbars are fixedly installed on the uppermost layer of the cabinet 100. Insulating members are arranged between the input busbar and the output busbar and the cabinet 100.

[0038] In combination Figure 2 As shown, the shielding member forms a shielding area in the cabinet 100, and the adapter plate 203 is arranged in the shielding area.

[0039] The shielding member includes a ring-shaped conductive wool 501 and a conductive bracket 502. The ring-shaped conductive wool 501 is fixedly installed with the cabinet 100 through the conductive bracket 502, and at least part of the ring-shaped conductive wool 501 is arranged between the adapter plate 203 and the cabinet 100. The conductive wool arranged between the adapter plate 203 and the cabinet 100 can play a role of buffering and shock absorption.

[0040] In an embodiment, the adapter plate 203 is installed in parallel with the back plate of the cabinet 100 (for the sake of clear Figure 2 In the cabinet 100 shown in the figure, only the back plate part is shown). The conductive bracket 502 is fixedly installed on the back plate of the cabinet 100, and the ring-shaped conductive wool 501 is fixedly installed with the back plate of the cabinet 100 through the conductive bracket 502. The conductive bracket 502 can be a square frame structure, and the outer contour of the ring-shaped conductive wool 501 is also square. The ring-shaped conductive wool 501 can be embedded in the conductive bracket 502 and fixedly installed with the conductive bracket 502 by means of conductive glue, bolts and the like. The conductive bracket 502 can improve the electrical connection between the ring-shaped conductive wool 501 and the cabinet 100, so that the ring-shaped conductive wool 501 and the cabinet 100 are at the same potential (i.e. ground potential).

[0041] The annular conductive foam 501 includes an outer ring portion 503 and an inner ring portion 504. The outer ring portion 503 is thicker than the inner ring portion 504. The inner ring portion 504 is located between the adapter plate 203 and the back panel of the cabinet 100. This part of the annular conductive foam 501 can play a role in buffering and shock absorption. The outer ring portion 503 is located on the periphery of the adapter plate 203. Because the outer ring portion 503 is thicker, it will protrude from the surface of the adapter plate 203, so that the adapter plate 203 is completely within the shielding area of ​​the annular conductive foam, which can shield electromagnetic interference from outside the adapter plate 203.

[0042] Preferably, the circuits and circuit elements on the adapter board 203 are disposed within the inner ring of the annular conductive foam 501 to avoid contact with the annular conductive foam 501 and thus prevent signal interference.

[0043] like Figure 3 and Figure 4 As shown, the adapter board 203 is provided with a first connector 204 and a second connector 205 connected together, and the PLC module 301 is connected to the first connector 204 and the second connector 205.

[0044] UPS module 201 and STS module 202 are slidably installed with cabinet 100. UPS module 201 is provided with a first connection terminal 206, which is inserted into or removed from first connection socket 204 through the sliding of UPS module 201. STS module 202 is provided with a second connection terminal 207, which is inserted into or removed from second connection socket 205 through the sliding of STS module 202.

[0045] In one embodiment, the cabinet 101 is also equipped with multiple shelves for placing the UPS module 201 and the STS module 202, as well as a mounting plate for installing the PLC module 301, the voltage monitoring relay 302 and the insulation monitoring relay 303. The shelves are perpendicular to the back panel of the cabinet 101, and the mounting plate is parallel to the back panel of the cabinet 101.

[0046] The two sides of the UPS module 201 and the two sides of the STS module 202 are also provided with guide rail brackets that are fixedly installed with the shelf. The two sides of the UPS module 201 and the two sides of the STS module 202 are slidably installed with the guide rails and guide rail brackets.

[0047] The voltage monitoring relay 302 is connected with the PLC module 301 and the input bus. The model of the voltage monitoring relay 302 is preferably XY-GDUJ-DC24V. The voltage monitoring relay 302 can sample and monitor the input voltage on the input bus and output a voltage monitoring signal to the PLC module 301. The insulation monitoring relay 303 is connected with the PLC module 301 and the first connection terminal 206. The insulation monitoring relay 303 is connected with the UPS module 201 through the first connection terminal 206 and monitors the insulation of the UPS module 201 and outputs an insulation monitoring signal to the PLC module 301. The PLC module 301 can alarm based on the above monitoring results.

[0048] In an embodiment, the first connection seat 204 is provided with three first connection seats corresponding to the UPS module 201, and the three first connection seats are connected with each other.

[0049] In an embodiment, the first connection terminal 206 and the second connection terminal 207 are designed as long and short pins, which can play a protective role in the hot plug process.

[0050] The UPS module 201 and the STS module 202 are connected with the PLC module 301 through the first connection seat 204 and the second connection seat 205. The PLC module 301 can communicate with the UPS module 201 and the STS module 202 to control and query the working state thereof.

[0051] In other embodiments, the PLC module 301 can also be connected with only the first connection seat 204 or the second connection seat 205, and the PLC can directly communicate with only the UPS module 201 or the STS module 202.

[0052] The three UPS modules 201 are interconnected through the three first connection seats 204, so that the UPS modules 201 can work in parallel to ensure that power supply can be provided in time in the case of unexpected power failure to realize uninterrupted power supply.

[0053] The UPS module 201 and the STS module 202 are connected through the first connection seat 204 and the second connection seat 205, so that the UPS module 201 and the STS module 202 can communicate with each other.

[0054] In an embodiment, the first connecting seat 204 and the second connecting seat 205 are also connected with the input bus bar and the output bus bar, and the UPS module 201 can be connected with the input bus bar and the output bus bar through the first connecting seat 204, so as to obtain the power supply voltage and provide power supply for the load. The STS module 202 is connected with the input bus bar and the output bus bar through the first connecting seat 204, so as to control the on-off between the input bus bar and the output bus bar and control whether the load is directly supplied by the input voltage. In other embodiments, the connection relationship between the first connecting seat 204, the second connecting seat 205 and the input bus bar and the output bus bar can also be configured according to actual needs.

[0055] Preferably, the adapter board 203 is provided with a hot plug protection circuit connected with the first connecting seat 204 and the second connecting seat 205. The hot plug protection circuit can include a current limiting circuit, a filter circuit, a hot plug management chip and the like, and is connected with the pins of the first connecting seat 204 and the second connecting seat 205 according to actual needs.

[0056] In combination with FIGS. 1-3, Figure 1 and Figure 3 In an embodiment, the power distribution cabinet further includes a contactor 304, a relay 305, a fuse 306 and an air switch 307, which can be connected with one or more of the input bus bar, the output bus bar, the first connecting seat 204, the second connecting seat 205 and the PLC module 301 according to actual needs, so as to realize the switch control in the line.

[0057] In the layout in the cabinet 100, the three UPS modules 201 and the STS module 202 can be separated by a hanging plate, so as to facilitate heat dissipation, and the PLC module 301, the voltage monitoring relay 302, the insulation monitoring relay 303, the contactor 304, the relay 305 and the air switch 307 are all installed on the hanging plate, or the air switch 307, the contactor 304 and the relay 305 can also be installed on the cabinet door 102, so that the space utilization is more efficient.

[0058] As shown in FIG. 4, Figure 4 The cabinet 100 is provided with a mounting plate 103, which is arranged between the UPS module 201, the STS module 202 and the adapter board 203. The mounting plate 103 is provided with a plurality of guide holes 104 for guiding the first connecting terminal 206 or the second connecting terminal 207, so as to ensure that when the UPS module 201 and the STS module 202 are pushed into the cabinet 100, the first connecting terminal 206 and the second connecting terminal 207 can be accurately connected with the first connecting seat 204 and the second connecting seat 205.

[0059] As shown in FIG. 4, Figure 5As shown, the cabinet 100 is provided with a shock absorber 601.

[0060] The cabinet body 101 is provided with a grounding copper bar 602 and a first grounding stud 603, and the cabinet door 102 is provided with a second grounding stud 604 connected with the first grounding stud 603.

[0061] The cabinet door 102 and the cabinet body 101 are provided with a conductive sealing piece 605.

[0062] In actual use, the UPS module 201 and the STS module 202 can be hot-plugged by directly pulling, and no manual plugging interface is needed in the hot-plugging process, and there is no risk of electric shock. The shielding piece arranged around the adapter plate 203 can shield electromagnetic interference from around the adapter plate 203. By using conductive sponge as the shielding piece, electromagnetic isolation is achieved while the adapter plate 203 is buffered and isolated, so that the adapter plate 203 can be more stable during the plugging of the UPS module 201 and the STS module 202, and in particular, the problem of misalignment of the terminal and the connecting seat caused by stress deformation of the adapter plate 203 during insertion and the failure of the long-short pin protection function are avoided.

[0063] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0064] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An electrical distribution cabinet, characterized in that, The power distribution cabinet comprises a cabinet and a UPS module, a STS module, a PLC module, a transition plate and a shielding member which are installed in the cabinet; The shielding member forms a shielding area in the cabinet, the transition plate is arranged in the shielding area, the transition plate is provided with a first connecting seat and a second connecting seat which are connected, and the PLC module is connected with the first connecting seat and / or the second connecting seat; The UPS module and the STS module are slidably installed in the cabinet, the UPS module is provided with a first connecting terminal, the first connecting terminal is inserted into or pulled out of the first connecting seat through the sliding of the UPS module, the STS module is provided with a second connecting terminal, and the second connecting terminal is inserted into or pulled out of the second connecting seat through the sliding of the STS module.

2. The power distribution cabinet of claim 1, wherein, The UPS module is provided with a plurality of first connecting seats which are connected with the UPS module one by one.

3. The power distribution cabinet of claim 1, wherein, The shielding member comprises a ring-shaped conductive cloth, and at least part of the ring-shaped conductive cloth is arranged between the transition plate and the cabinet.

4. The power distribution cabinet of claim 3, wherein, The ring-shaped conductive cloth comprises an outer ring part and an inner ring part which are connected, the thickness of the outer ring part is greater than that of the inner ring part, the inner ring part is arranged between the transition plate and a cabinet plate of the cabinet, and the outer ring part is arranged at the periphery of the transition plate.

5. The power distribution cabinet of claim 3, wherein, The shielding member further comprises a conductive support, and the ring-shaped conductive cloth is fixedly installed on the cabinet through the conductive support.

6. The power distribution cabinet of claim 1, wherein, The transition plate is provided with a hot plug protection circuit which is connected with the first connecting seat and the second connecting seat.

7. The power distribution cabinet of claim 1, wherein, The cabinet is provided with a mounting plate which is arranged between the UPS module, the STS module and the transition plate, the mounting plate is provided with a plurality of guide holes which are used for guiding the first connecting terminal or the second connecting terminal.

8. The power distribution cabinet of claim 1, wherein, The power distribution cabinet further comprises a voltage monitoring relay which is connected with the PLC module and an input voltage; and / or The power distribution cabinet further comprises an insulation monitoring relay which is connected with the PLC module and the first connecting terminal.

9. The power distribution cabinet of claim 1, wherein, The cabinet comprises a cabinet door and a cabinet body, the cabinet body is provided with a grounding copper bar and a first grounding stud, and the cabinet door is provided with a second grounding stud which is connected with the first grounding stud.

10. The power distribution cabinet of claim 1, wherein, The cabinet comprises a cabinet door and a cabinet body, and a conductive sealing member is arranged between the cabinet door and the cabinet body.

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