CN220822205U - Power distribution equipment - Google Patents

Abstract

The application provides power distribution equipment which comprises a main body, a split body and a power transmission line. The main body includes a power distribution module having a first terminal and a second terminal, and a first relay connected to the first terminal and the second terminal. The split comprises a connector which is used for connecting energy storage equipment. One end of the power transmission line is connected with the connector, and the other end of the power transmission line is connected with the first relay. The first relay selectively conducts an electrical connection of the first terminal and the connector or conducts an electrical connection of the second terminal and the connector. In the power distribution equipment, the split body can be detached from the main body, so that the split body can be placed indoors for use, the influence of outdoor factors is reduced, and the first relay can be directly arranged on the first terminal and the second terminal due to the fact that the first relay is placed in the main body, power transmission lines are not needed to be arranged between the first relay and the first terminal and between the first relay and the second terminal, the number of the power transmission lines is reduced, wiring of the power distribution equipment is further reduced, and layout of the power distribution equipment is simplified.

Description

Power distribution equipment

Technical Field

The application relates to the technical field of power distribution, in particular to power distribution equipment.

Background

The related art provides a power distribution device having a receptacle for accessing an energy storage device, and a utility power is supplied to charge the energy storage device after power distribution. When the commercial power fails, for example, when power fails, the energy storage device can supply power, and the power is supplied to the electric equipment after power distribution.

A relay needs to be provided in the power distribution device to switch whether to charge or supply power through the energy storage device. However, the relay is unreasonable in layout, so that the problems of more wiring and increased wiring difficulty exist.

Disclosure of utility model

In view of the above, the present application provides a power distribution apparatus capable of improving use stability and reducing internal wiring.

An embodiment of the present application provides a power distribution apparatus including a main body, a split body, and a power transmission line. The main body includes a power distribution module having a first terminal and a second terminal, and a first relay connected to the first terminal and the second terminal. The split body is detachably connected to the main body, and comprises a connector which is used for connecting energy storage equipment. One end of the power transmission line is positioned in the split body and connected with the connector, and the other end of the power transmission line extends into the main body and is connected with the first relay. The first relay is configured to selectively conduct an electrical connection of the first terminal and the connector or conduct an electrical connection of the second terminal and the connector.

According to the power distribution equipment, the main body and the split bodies are arranged, so that when the power distribution equipment is applied outdoors, the split bodies can be detached from the main body, the split bodies can be placed indoors for use, influences of outdoor factors on the plug connector are reduced, for example, the water inlet risk of the plug connector is reduced, the working stability of the power distribution equipment is improved, and because the first relay is placed in the main body, the first relay can be directly connected to the first terminal and the second terminal, power lines are not required to be configured between the first relay and the first terminal and between the first relay and the second terminal, the number of the power lines is reduced, and the plug connector can be connected with the first relay only by one power line, so that the power distribution equipment is reduced in power line arrangement, wiring of the power distribution equipment is reduced, layout of the power distribution equipment is simplified, and meanwhile, the number of disconnecting and wiring when the split bodies are detached is reduced, and line replacement operation is facilitated.

In some embodiments, the split body comprises a box body, a cover body and a support frame, the box body defines a first chamber with a first opening, the cover body is detachably arranged on the box body to close or open the first opening, the support frame, the connector and part of the power transmission line are arranged in the first chamber, the support frame is arranged on one side of the box body close to the first opening, the split body further comprises a first binding post, the first binding post is connected with the connector and the power transmission line, and the part of the first binding post connected with the power transmission line is exposed on one side of the support frame facing the first opening.

In some embodiments, the main body includes a cabinet body, an insulating housing, and a cabinet door, the cabinet body defining a second chamber having a second opening, the cabinet door rotatably connecting the cabinet body to close or open the second opening, the insulating housing, the power distribution module, and the first relay being located in the second chamber, the first relay being located in the insulating housing, the main body further including a second terminal, one end of the second terminal being connected to the first relay, the other end being exposed at a side of the insulating housing facing the second opening, and being connected to the power transmission line.

In some embodiments, the power distribution module includes a first conductive strip and a plurality of branch switches, the branch switches are connected to the first conductive strip and are used for connecting to an electric load, one end of the first conductive strip forms a first terminal, the other end of the first conductive strip is used for connecting to a power supply system, and the first relay is configured to conduct the first conductive strip and the power transmission line when the first conductive strip is connected to the power supply system.

In some embodiments, the power distribution module further includes a second relay connected to an end of the first conductive strip remote from the first terminal and configured to access the power supply system, the second relay configured to turn on or off electrical connection of the power supply system to the first conductive strip.

In some embodiments, the power distribution module further comprises a second conductive strip having one end connected to the second relay and the other end forming a second terminal, the second relay being configured to conduct the first conductive strip with the second conductive strip when the power supply system is disconnected from the first conductive strip, the first relay being configured to conduct the power line with the second conductive strip when the first conductive strip and the second conductive strip are conducted.

In some embodiments, the first conductive strip and the second conductive strip are arranged in parallel, the first terminal and the second terminal are arranged in parallel, the first relay is located between the first conductive strip and the second conductive strip, the first relay comprises a normal connection end, a first selection end and a second selection end, the first selection end is connected to the first terminal, the second selection end is connected to the second terminal, the normal connection end is connected to the power line, and the normal connection end is selectively electrically connected to the first selection end or the second selection end.

In some embodiments, the branch switch includes a branch relay and a branch circuit breaker electrically connected to the first conductive bar through the branch relay, the branch circuit breaker for accessing the electrical load.

In some embodiments, the first conductive bars and the second conductive bars are respectively provided with two first conductive bars, the two first conductive bars are positioned between the two second conductive bars, the plurality of branch switches are positioned between the two second conductive bars, one first relay is arranged at the same end of each adjacent first conductive bar and one second conductive bar, one second relay is arranged at the same end of each adjacent first conductive bar and one second conductive bar, each first relay is electrically connected with a split body through one power transmission line, the split body comprises an adapter plate and a plurality of connectors, and the adapter plate is connected with the plurality of connectors and is connected with the two power transmission lines.

In some embodiments, the body is provided with a through hole, the split has an extension, and when the split is connected to the body, the extension extends into the body through the through hole, the extension is provided with a harness hole, and the power line extends out of the extension through the harness hole.

Drawings

Fig. 1 is a perspective view of a power distribution apparatus in an embodiment of the present application.

Fig. 2 is an exploded view of the power distribution apparatus of fig. 1 after the main body and the split body are exploded.

Fig. 3 is a perspective view of an internal structure of the power distribution apparatus of fig. 1.

Fig. 4 is an exploded view of the internal structure of the power distribution apparatus of fig. 3.

Fig. 5 is a front view of the power distribution apparatus of fig. 4 with the insulating housing removed and the support bracket.

Fig. 6 is a perspective view of a branch switch and power line with portions of the power distribution apparatus of fig. 5 removed.

Fig. 7 is a circuit diagram of a power distribution device charging an energy storage device according to an embodiment of the present application.

Fig. 8 is a circuit diagram of an energy storage device powering a power distribution device in accordance with an embodiment of the present application.

Description of the main reference signs

100-Power distribution device 10-body 11-Power distribution Module

111-First terminal 112-second terminal 113-first conductive strip

114-Branch switch 1141-branch relay 1142-branch circuit breaker

115-Second relay 1151-second common terminal 1152-third selection terminal

116-Second conductor bar 12-first relay 121-first common terminal

122-First selection end 123-second selection end 13-cabinet

131-Second opening 132-second chamber 133-through hole

14-Insulating shell 15-cabinet door 16-second binding post

20-Split 21-plug connector 22-box body

221-First opening 222-first chamber 223-extension

2231-Wire bundle hole 23-cover 24-support frame

25-First binding post 26-turnover plate 27-adapter plate

30-Power line 40-ground line 50-zero line

Detailed Description

The following description of the embodiments of the present application refers to the accompanying drawings, which illustrate some, but not all embodiments of the application.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

The related art provides a power distribution device having a receptacle for accessing an energy storage device, and a utility power is supplied to charge the energy storage device after power distribution. When the commercial power fails, for example, when power fails, the energy storage device can supply power, and the power is supplied to the electric equipment after power distribution. A relay needs to be provided in the power distribution device to switch whether to charge or supply power through the energy storage device. However, the relay is unreasonable in layout, so that the problems of more wiring and increased wiring difficulty exist.

In view of the above, the present application provides a power distribution apparatus capable of improving use stability and reducing internal wiring. The power distribution equipment comprises a main body, a split body and a power transmission line. The main body includes a power distribution module having a first terminal and a second terminal, and a first relay connected to the first terminal and the second terminal. The split body is detachably connected to the main body, and comprises a connector which is used for connecting energy storage equipment. One end of the power transmission line is positioned in the split body and connected with the connector, and the other end of the power transmission line extends into the main body and is connected with the first relay. The first relay is configured to selectively conduct an electrical connection of the first terminal and the connector or conduct an electrical connection of the second terminal and the connector.

According to the power distribution equipment, the main body and the split bodies are arranged, so that when the power distribution equipment is applied outdoors, the split bodies can be detached from the main body, the split bodies can be placed indoors for use, influences of outdoor factors on the plug connector are reduced, for example, the water inlet risk of the plug connector is reduced, the working stability of the power distribution equipment is improved, and because the first relay is placed in the main body, the first relay can be directly connected to the first terminal and the second terminal, power lines are not required to be configured between the first relay and the first terminal and between the first relay and the second terminal, the number of the power lines is reduced, and the plug connector can be connected with the first relay only by one power line, so that the power distribution equipment is reduced in arrangement of the power distribution equipment, the layout of the power distribution equipment is simplified, the number of disconnecting lines and connecting lines during assembly and disassembly of the split bodies is reduced, and line replacement operation is facilitated.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without collision.

Referring to fig. 1 to 3, a power distribution apparatus 100 according to an embodiment of the present application includes a main body 10 and a split body 20. The main body 10 includes a power distribution module 11, and the power distribution module 11 is used for performing power distribution control on electric equipment and providing power-off protection when overload, short circuit or electric leakage occurs in a circuit. The split 20 is detachably mounted to the main body 10, and the split 20 includes a connector 21, the connector 21 for accessing the energy storage device. The power distribution apparatus 100 may be used in a variety of application scenarios, for example:

In an application scenario of power distribution to electric equipment, a main body 10 is used independently, a power distribution module 11 is connected to a municipal power grid to obtain commercial power, and the commercial power is distributed and controlled to supply power to the electric equipment;

In another application scenario of power distribution to electric equipment, the main body 10 and the split body 20 are used together, the plug-in connector 21 is connected to the energy storage equipment, and the power distribution module 11 is not connected to the mains supply and obtains power from the energy storage equipment, so that the energy storage equipment supplies power to the electric equipment;

In an application scenario of charging energy storage devices, the main body 10 and the split body 20 are used together, the power distribution module 11 is connected to the mains supply, the plug-in connector 21 is connected to the energy storage devices, and the power distribution module 11 charges the energy storage devices through the mains supply.

Since the split body 20 is detachable from the main body 10, the limitation of the installation position of the main body 10 to the split body 20 is reduced, and when the main body 10 is installed at a certain position, the split body 20 can be installed on the main body 10, or the split body 20 can be detached from the main body 10 and put at another position to work, so that the influence of the environment where the main body 10 is located on the split body 20 is reduced, and the environmental adaptability and the working stability of the power distribution equipment 100 are improved.

For example, when the main body 10 is located in an outdoor environment, negative environmental factors, such as moisture, may affect the use of the plug connector 21, resulting in a leakage risk of the power distribution device 100, and at this time, the split body 20 may be detached from the main body 10 and placed indoors, and the energy storage device may be connected to the plug connector 21 indoors, thereby reducing the influence of the environmental factors on the plug connector 21 and the energy storage device, reducing the risk of water inflow of the power distribution device 100, and improving the stability of the power distribution device 100.

As an exemplary example, the energy storage device includes a battery pack and an inverter module that can convert direct current output by the battery pack into alternating current for use by the power load, and can also convert alternating current of utility power into direct current for charging the battery pack. The energy storage device may be a mobile power supply for use in outdoor settings or a home energy storage system for storing energy for a home.

Referring to fig. 5, 7 and 8 in combination, in some embodiments, the main body 10 further includes a first relay 12, the power distribution module 11 has a first terminal 111 and a second terminal 112, and the first relay 12 is electrically connected to the first terminal 111 and the second terminal 112. The power distribution apparatus 100 further includes a power transmission line 30, one end of the power transmission line 30 is located in the split body 20 and electrically connected to the connector 21, and the other end can extend into the main body 10 and be detachably electrically connected to the first relay 12. The first relay 12 is used to selectively conduct the electrical connection of the first terminal 111 and the connector 21, or conduct the electrical connection of the second terminal 112 and the connector 21.

When the first relay 12 conducts the first terminal 111 and the plug connector 21, the power distribution module 11 is connected to the mains, the plug connector 21 is connected to the energy storage device, and the power distribution module 11 charges the energy storage device through the mains.

When the first relay 12 conducts the second terminal 112 and the plug connector 21, the plug connector 21 is connected to the energy storage device, and the energy storage device discharges to enable the power distribution module 11 to obtain electricity from the energy storage device.

Since the first relay 12 is placed in the main body 10, the first relay 12 can be directly connected to the first terminal 111 and the second terminal 112, i.e., the first relay 12 does not need to connect the first terminal 111 and the second terminal 112 through the additional power lines 30, thereby reducing the number of power lines 30; however, if the first relay 12 is disposed in the split 20, the first relay 12 needs to connect the first terminal 111 and the second terminal 112 with the two power lines 30, so that the present application can at least eliminate the disposition of one power line 30 by placing the first relay 12 in the main body 10, so that the disposition of the power line 30 is reduced by the power distribution device 100, and the wiring of the power distribution device 100 is further reduced, the layout of the power distribution device 100 is simplified, and meanwhile, the number of the disconnecting and connecting wires during the assembly and disassembly of the split 20 can be reduced, thereby facilitating the wire replacement operation.

Referring to fig. 2 to 4, in some embodiments, the split 20 further includes a box 22, a cover 23, and a supporting frame 24. The cartridge 22 defines a first chamber 222 having a first opening 221. The cover 23 is detachably provided to the case 22 to close or open the first opening 221. The supporting frame 24, the connector 21 and part of the power line 30 are located in the first cavity 222, and the supporting frame 24 is used for fixing the connector 21, so that the box 22 and the cover 23 can play a role in protecting the connector 21 and the power line 30. The supporting frame 24 is disposed on a side of the box 22 near the first opening 221, and a portion of the connector 21 for plugging is exposed on a side of the supporting frame 24 facing the first opening 221, so that the connector 21 is more convenient for plugging operation.

In some embodiments, the split 20 further includes a first terminal 25, the first terminal 25 is disposed through the support frame 24, the first terminal 25 is used for electrically connecting the connector 21 and the power line 30, a portion of the first terminal 25 connected with the power line 30 is exposed on a side of the support frame 24 facing the first opening 221, so as to facilitate connection between the power line 30 and the connector 21, and thus facilitate a line replacement operation when the split 20 is detached and used at a different position, for example, when the split 20 is detached from the main body 10, the shorter power line 30 needs to be replaced with the longer power line 30, and the first terminal 25 can facilitate detachment of the shorter power line 30 from the split 20 and connection of the longer power line 30 to the split 20.

In some embodiments, the cover 23 is provided with an exposure hole (not shown) whose position corresponds to that of the connector 21, and the split body 20 further includes a flipping plate 26, where the flipping plate 26 is connected to the cover 23 in a reversible manner, and the flipping plate 26 can cover or expose the exposure hole to cover or expose the connector 21. When the connector 21 is not in use, the turnover plate 26 covers the connector 21 to protect the connector 21; when the connector 21 is used, the connector 21 can be exposed only by opening the turnover plate 26, so that the connector 21 is more convenient to operate in a plugging mode, and other parts in the box body 22 cannot be exposed by opening the turnover plate 26, so that safety is improved.

In some embodiments, the main body 10 includes a cabinet 13, an insulating shell 14, and a cabinet door 15, the cabinet 13 defining a second chamber 132 having a second opening 131. The cabinet door 15 is rotatably coupled to the cabinet body 13 to close or open the second opening 131. The insulating housing 14, the power distribution module 11, and the first relay 12 are located in the second chamber 132, and the power distribution module 11 and the first relay 12 are provided in the insulating housing 14 to function to protect the power distribution module 11 and the first relay 12.

In some embodiments, the main body 10 further includes a second binding post 16, one end of the second binding post 16 is electrically connected to the first relay 12, and the other end is exposed at a side of the insulating housing 14 facing the second opening 131 and is used for being connected to the power transmission line 30, so that when the power transmission line 30 is dismounted from the first relay 12, the power transmission line 30 does not need to extend into the insulating housing 14, and only needs to be connected to the second binding post 16 outside the insulating housing 14, thereby improving the operation convenience and facilitating the line replacement operation when the split body 20 is dismounted.

Referring to fig. 5 and 7, in some embodiments, the power distribution module 11 includes a first conductive bar 113 and a plurality of branch switches 114, and the branch switches 114 are connected to the first conductive bar 113 and are used for connecting to an electrical load. One end of the first conductive strip 113 is a first terminal 111, and the other end of the first conductive strip 113 is used for being connected to a power supply system (such as mains supply, energy storage equipment or a generator). When the first conductive strip 113 is connected to the mains, the first relay 12 may conduct the first terminal 111 and the power line 30, and then conduct the first conductive strip 113 and the plug 21, so that the mains passes through the first conductive strip 113, the first terminal 111, the first relay 12, the power line 30 and the plug 21 in sequence, thereby charging the energy storage device by the mains, as shown in fig. 7.

In some embodiments, the power distribution module 11 further includes a second relay 115, where the second relay 115 is connected to an end of the first conductive strip 113 away from the first terminal 111, so that the second relay 115 is connected to a power supply system (such as a mains supply, an energy storage device, or a generator), and the second relay 115 is used to connect or disconnect the power supply system to the first conductive strip 113.

Referring to fig. 5 and 8, in some embodiments, the power distribution module 11 further includes a second conductive bar 116, where one end of the second conductive bar 116 is connected to the second relay 115, and the other end is the second terminal 112. When the mains supply is disconnected from the first conductive strip 113, for example, when the mains supply fails, the second relay 115 conducts the first conductive strip 113 and the second conductive strip 116, and the first relay 12 conducts the power transmission line 30 and the second terminal 112, so that the second conductive strip 116 and the plug 21 are conducted, and the electric energy discharged by the energy storage device sequentially passes through the plug 21, the power transmission line 30, the first relay 12, the second terminal 112, the second conductive strip 116, the second relay 115, the first conductive strip 113 and the plurality of branch switches 114, so that the energy storage device supplies power to the power distribution module 11, as shown in fig. 8.

Referring to fig. 5, in some embodiments, the first conductive bar 113 and the second conductive bar 116 are arranged in parallel, the first terminal 111 and the second terminal 112 are arranged in parallel, and the first relay 12 is located between the first conductive bar 113 and the second conductive bar 116, so that the first relay 12 is connected to the first terminal 111 and the second terminal 112, thereby simplifying the layout.

In some embodiments, the first relay 12 includes a first common terminal 121, a first selection terminal 122, and a second selection terminal 123, the first selection terminal 122 is connected to the first terminal 111, the second selection terminal 123 is connected to the second terminal 112, and the first common terminal 121 is connected to the power line 30 through the second terminal 16. The first common terminal 121 is selectively electrically connected to the first selection terminal 122 or the second selection terminal 123 such that the power line 30 is selectively electrically connected to the first terminal 111 or the second terminal 112. As an exemplary example, the first relay 12 is a three-phase relay.

In some embodiments, the second relay 115 includes a second common terminal 1151, a third selection terminal 1152, and a fourth selection terminal (not shown), wherein the second common terminal 1151 is connected to the first conductive bar 113, the third selection terminal 1152 is connected to the second conductive bar 116, and the fourth selection terminal is connected to the mains. The second common terminal 1151 is selectively electrically connected to the third selecting terminal 1152 and the fourth selecting terminal, such that the first conductive strip 113 is selectively electrically connected to the second conductive strip 116 or the electric supply. As an exemplary example, the second relay 115 is a three-phase relay.

Referring to fig. 6, in some embodiments, the branch switch 114 includes a branch relay 1141 and a branch breaker 1142, the branch breaker 1142 is electrically connected to the first conductive bar 113 through the branch relay 1141, the branch breaker 1142 is used for switching in an electric load to control the power on and off of a branch where the electric load is located, to protect the branch from damage caused by overload or short circuit, and the branch relay 1141 is used for controlling the power on and off between the branch breaker 1142 and the first conductive bar 113.

Referring to fig. 5, 7 and 8, in some embodiments, the first conductive rows 113 and the second conductive rows 116 have two each, two first conductive rows 113 are located between two second conductive rows 116, and the plurality of branch switches 114 are located between two second conductive rows 116. The same end of the adjacent first conductive row 113 and second conductive row 116 is provided with a first relay 12, and the other same end is provided with a second relay 115. Each first relay 12 is electrically connected to a connector 21 in the sub-body 20 via a power line 30. The two sets of the first conductive bars 113 and the second conductive bars 116 arranged in parallel can shorten the total length of the main body 10, optimize the layout of the plurality of branch switches 114, and facilitate the operation of personnel.

Alternatively, the split 20 includes an adapter plate 27 and a plurality of connectors 21, where the connectors 21 are electrically connected to the adapter plate 27, the adapter plate 27 is provided with two first terminals 25, two power lines 30 are electrically connected to the two first terminals 25 in a one-to-one correspondence, the adapter plate 27 is used to establish an electrical connection between the connectors 21 and the two power lines 30, for example, the connectors 21 have three connectors, the connectors 27 may be configured to connect the three connectors 21 in parallel, and when any one of the connectors 21 is connected to an energy storage device, the energy storage device may transmit electric energy to the two second conductive bars 116 through the two power lines 30 to supply power to the power distribution module 11, or the two first conductive bars 113 transmit electric power to the energy storage device through the two power lines 30 to charge the energy storage device. As an exemplary example, the interposer 27 is a circuit board.

Referring to fig. 2, 3 and 5, in some embodiments, the power distribution apparatus 100 further includes a ground wire 40 and a neutral wire 50, wherein one ends of the ground wire 40 and the neutral wire 50 are electrically connected to the patch panel 27, and the other ends extend out of the split body 20 and are used for connecting the main body 10.

Referring to fig. 2 and 3, in some embodiments, the main body 10 is provided with a through hole 133 at the bottom of the cabinet 13, the split body 20 is provided with an extension 223 at the top of the box 22, and when the split body 20 is mounted on the main body 10, the extension 223 extends into the second chamber 132 of the cabinet 13 through the through hole 133 to perform a positioning function. The extension portion 223 is provided with a wire harness hole 2231, the wire harness hole 2231 is communicated with the first cavity 222, the power transmission line 30, the ground wire 40 and the zero line 50 extend out of the extension portion 223 through the wire harness hole 2231, so that the extension portion 223 plays a limiting role on the power transmission line 30, the ground wire 40 and the zero line 50, wiring of the power distribution equipment 100 is optimized, and layout of the power distribution equipment 100 is simplified.

In addition, those skilled in the art will recognize that the foregoing embodiments are merely illustrative of the present application and are not intended to be limiting, as appropriate modifications and variations of the foregoing embodiments are within the scope of the disclosure of the application.

Claims (10)

1. A power distribution apparatus, comprising:

A body including a power distribution module having a first terminal and a second terminal, and a first relay connected to the first terminal and the second terminal;

The split body is detachably connected to the main body and comprises a connector, and the connector is used for connecting energy storage equipment;

One end of the power transmission line is positioned in the split body and connected with the plug connector, and the other end of the power transmission line extends into the main body and is connected with the first relay;

The first relay is configured to selectively conduct an electrical connection of the first terminal and the connector or conduct an electrical connection of the second terminal and the connector.

2. The electrical distribution device of claim 1, wherein: the split type power transmission device comprises a box body, a cover body and a support frame, wherein the box body is limited to form a first cavity with a first opening, the cover body is detachably arranged on the box body to close or open the first opening, the support frame, the connector and part of power transmission lines are arranged in the first cavity, the support frame is arranged on one side, close to the first opening, of the box body, the split type power transmission device further comprises a first binding post, the first binding post is connected with the connector and the power transmission lines, and the part, connected with the power transmission lines, of the first binding post is exposed out of one side, facing the first opening, of the support frame.

3. The electrical distribution device of claim 1, wherein: the main part includes the cabinet body, insulating shell and cabinet door, the cabinet body is limited to form the second cavity that has the second opening, the cabinet door rotationally connects the cabinet body is in order to close or open the second opening, insulating shell the distribution module with first relay is located in the second cavity, first relay is located in the insulating shell, the main part still includes the second terminal, the one end of second terminal with first relay is connected, the other end expose in the insulating shell orientation second open-ended one side, and with the power transmission line is connected.

4. The electrical distribution device of claim 1, wherein: the power distribution module comprises a first conducting bar and a plurality of branch switches, wherein the branch switches are connected to the first conducting bar and are used for being connected with an electricity utilization load, one end of the first conducting bar forms the first terminal, the other end of the first conducting bar is used for being connected with a power supply system, and the first relay is configured to conduct the first conducting bar and the power transmission line when the first conducting bar is connected with the power supply system.

5. The electrical distribution device of claim 4, wherein: the power distribution module further includes a second relay connected to an end of the first conductive strip remote from the first terminal and configured to be connected to the power supply system, the second relay being configured to turn on or off electrical connection of the power supply system to the first conductive strip.

6. The electrical distribution device of claim 5, wherein: the power distribution module further comprises a second conductive bar, one end of the second conductive bar is connected with the second relay, the other end of the second conductive bar forms the second terminal, the second relay is configured to conduct the first conductive bar and the second conductive bar when the power supply system is disconnected from the first conductive bar, and the first relay is configured to conduct the power transmission line and the second conductive bar when the first conductive bar and the second conductive bar are conducted.

7. The electrical distribution device of claim 6, wherein: the first conducting bar and the second conducting bar are arranged in parallel, the first terminal and the second terminal are arranged in parallel, the first relay is located between the first conducting bar and the second conducting bar, the first relay comprises a normally-connected end, a first selection end and a second selection end, the first selection end is connected with the first terminal, the second selection end is connected with the second terminal, the normally-connected end is connected with the power transmission line, and the normally-connected end is selectively and electrically connected with the first selection end or the second selection end.

8. The electrical distribution device of claim 6, wherein: the branch switch comprises a branch relay and a branch breaker, wherein the branch breaker is electrically connected with the first conductive bar through the branch relay, and the branch breaker is used for being connected with an electric load.

9. The electrical distribution device of claim 8, wherein: the first conductive bars and the second conductive bars are respectively provided with two, the two first conductive bars are positioned between the two second conductive bars, the plurality of branch switches are positioned between the two second conductive bars, one first relay is arranged at the same end of each adjacent first conductive bar and one second conductive bar, one second relay is arranged at the same end of each adjacent first conductive bar and one second conductive bar, each first relay is electrically connected with the split body through one power transmission line, the split body comprises an adapter plate and a plurality of connectors, and the adapter plate is connected with the connectors and is connected with the two power transmission lines.

10. The power distribution apparatus according to any one of claims 1 to 9, wherein: the main body is provided with a through hole, the split body is provided with an extension part, when the split body is connected with the main body, the extension part extends into the main body through the through hole, the extension part is provided with a wire harness hole, and the power transmission line extends out of the extension part through the wire harness hole.