CN212784111U - Bus distribution module plugging device, bus system and distribution box - Google Patents

Abstract

The utility model belongs to the power equipment field discloses a generating line distribution module connects and inserts device, generating line system and block terminal. The bus distribution module plugging device comprises a shell, a first connecting module and a second connecting module; the first connecting module is movably arranged in the shell and comprises a first plug-in component and a moving mechanism, the first plug-in component is used for connecting a live wire connecting piece on the bus duct, and the moving mechanism is used for driving the first plug-in component to move; the second connecting module is fixedly arranged on the shell and comprises a second plug assembly, and the second plug assembly is used for connecting a zero line connecting piece and a ground wire connecting piece on the bus duct. According to the scheme, the first movable connecting module is arranged, when the bus power distribution module plugging device is plugged into the bus duct, the first movable connecting module is firstly connected with a zero line and a ground wire on the bus duct, then the moving mechanism drives the first plugging assembly to be connected with a live wire, and a safety is equivalently provided for the connection operation, so that the safety of the use of the bus power distribution module plugging device is guaranteed.

Description

Bus distribution module plugging device, bus system and distribution box

Technical Field

The utility model belongs to the technical field of power equipment, especially, relate to a generating line distribution module grafting device, generating line system and block terminal.

Background

The bus system is mainly applied to a low-voltage power distribution box, a wire inlet and outlet loop adopts a non-porous electrical installation technology, and the bus system has the advantages of series matching, commercial production, compact structure, high current-carrying capacity, high protection level, convenience in electric energy distribution, compact structure, assembly and disassembly schemes, safety, reliability, long service life and the like, and more wires and cables are replaced in indoor low-voltage power transmission main line engineering projects. The bus bar power distribution module plug device is a functional unit of a bus bar system and plays a role in distributing electric energy in the bus bar system.

The existing bus power distribution module plugging device is generally in a direct plugging fixed type when being connected with a bus duct, and the direct plugging connection mode is in direct contact power taking, so that electric leakage accidents are easily caused, and potential safety hazards exist in operation.

Therefore, the prior art fails to provide a bus distribution module plugging device to solve the problem of potential safety hazard in the connection mode of power supply and bus connection slots in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a generating line distribution module connects and inserts device aims at solving prior art and fails to provide a generating line distribution module connects and inserts device to there is the problem of operation potential safety hazard in power supply and the generating line spread groove connected mode among the solution prior art.

The embodiment of the utility model provides a realize like this, generating line distribution module connects and inserts the device and include: the device comprises a shell, a first connecting module and a second connecting module;

the first connecting module is movably arranged in the shell and comprises a first plug-in component and a moving mechanism, the first plug-in component is used for connecting a live wire connecting piece on the bus duct, and the moving mechanism is used for driving the first plug-in component to move;

the second connecting module is fixedly arranged on the shell and comprises a second plug assembly, and the second plug assembly is used for connecting a zero line connecting piece and a ground wire connecting piece on the bus duct.

Another object of the embodiments of the present invention is to provide a bus bar system, which comprises a bus duct and the bus bar power distribution module plugging device of the above mentioned type.

Another object of the embodiment of the present invention is to provide a distribution box, which includes a cabinet body and the above-mentioned bus bar system.

The utility model discloses the scheme is through setting up mobilizable first linking module and fixed second linking module, make second linking module connect ground wire and zero line, first linking module connects the live wire, when inserting the generating line distribution module and inserting the device and insert on the bus duct, earlier with zero line and the ground wire switch-on the bus duct, then make moving mechanism drive first inserting and insert subassembly and live wire switch-on, be equivalent to providing one insurance to the switch-on operation, avoided supplying the distribution module to peg graft the back and directly get the electricity, guarantee generating line distribution module inserts the security that the device used.

Drawings

Fig. 1 is a schematic perspective view of a bus bar power distribution module plugging device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another direction of the bus bar power distribution module plugging device according to the embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a bus bar power distribution module plugging device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of the first plug assembly, the second plug assembly and the second box body according to the embodiment of the present invention;

fig. 5 is an exploded view of the first connector assembly, the limiting locking mechanism and the housing according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first connector assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a zero line plug assembly according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional structure view of a bus bar distribution module plugging device provided in an embodiment of the present invention before being matched with a bus duct;

fig. 9 is a schematic cross-sectional structure view of the bus bar distribution module plugging device provided in the embodiment of the present invention after being engaged with the bus duct;

fig. 10 is a schematic structural view illustrating a driving connecting member and a driving assembly according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a bus duct provided in an embodiment of the present invention;

fig. 12 is a schematic structural view of a limiting locking mechanism in which a locking member is disposed above a locking groove according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a first connector assembly provided with an elastic device according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a housing provided with a mounting groove according to an embodiment of the present invention;

FIG. 15 is an enlarged view of the structure at A in FIG. 14;

fig. 16 is a schematic structural view illustrating a mating of a plug assembly provided with an elastic device and a bus duct according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of another bus duct provided in the embodiment of the present invention;

in the drawings: 11. a first case; 12. a second case; 121. mounting grooves; 13. a circuit breaker cover; 21. a first connector assembly; 211. a live wire bus bar; 212. the live wire is connected with the copper sheet; 213. an elastic device; 22. a moving mechanism; 221. inserting into the trough body; 222. a drive connection; 223. moving the slide rail; 224. moving the slide block; 23. a cable connection structure; 3. a second connector assembly; 31. a zero line connector assembly; 311. a zero line busbar; 312. the zero line is connected with the copper sheet; 32. a ground wire connector assembly; 41. a limiting base; 42. moving the handle; 43. a locking member; 44. a first locking groove; 45. a second locking groove; 51. a first drive gear; 52. a first rotating shaft; 53. a second rotating shaft; 54. a first bevel gear; 55. a second bevel gear; 56. a knob; 6. a circuit breaker; 7. an industrial outlet; 8. a cable; 91. a busway housing; 92. a live wire connection; 93. a zero line connection; 94. a ground wire connecting member; 95. and an insulating support.

Detailed description of the preferred embodiments

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Examples

Example 1

As shown in fig. 1-3, for the embodiment of the present invention provides a structure diagram of a bus bar power distribution module plugging device, the bus bar power distribution module plugging device includes: the device comprises a shell, a first connecting module and a second connecting module;

the first connection module is movably arranged in the shell and comprises a first plug-in assembly 21 and a moving mechanism 22, the first plug-in assembly 21 is used for connecting a live wire connector 92 on the bus duct, and the moving mechanism 22 is used for driving the first plug-in assembly 21 to move;

the second connection module is fixedly arranged on the shell and comprises a second plug assembly 3, and the second plug assembly 3 is used for connecting a zero line connecting piece 93 and a ground wire connecting piece 94 on the bus duct.

In an embodiment of the present invention, the housing is mainly used for loading other components constituting the bus bar power distribution module plugging device, and for protection. The specific structure of the housing is not limited in this embodiment, for example, the housing may be taken as a case structure for illustration, the housing includes a first case 11 and a second case 12, the first case 11 and the second case 12 are detachably connected, so as to be convenient for maintaining and replacing components inside the cases, a through hole is provided on the second case, and the portions of the first plug assembly 21 and the second plug assembly 3 connected to the bus duct can both pass through the through hole to be connected to the bus duct.

In the embodiment of the present invention, taking the setting directions of the zero line connecting piece 93 and the ground line connecting piece 94 on the bus duct and the setting direction of the live line connecting piece 92 perpendicular to each other as an example, as shown in fig. 8 to 9, correspondingly, the second connecting module is fixedly disposed on one side wall of the second box 12, and the first connecting module is movably disposed on another side wall adjacent to and perpendicular to the first connecting module. As shown in fig. 6, the first connector assembly 21 may include a live line bus bar 211 and a live line connecting copper sheet 212 disposed on the live line bus bar 211; the second connector assembly 3 includes: the ground wire patch assembly 32 and the zero wire patch assembly 31, the ground wire patch assembly 32 comprises a ground wire bus bar copper strip and a ground wire connecting copper sheet arranged on the ground wire bus bar copper strip, the zero wire patch assembly 31 comprises a zero wire bus bar copper strip 311 and a zero wire connecting copper sheet 312 arranged on the zero wire bus bar copper strip 311, and the structure of the zero wire patch assembly is shown in fig. 7. The live wire connecting copper sheet 212, the ground wire connecting copper sheet and the zero line connecting copper sheet 312 can be respectively welded on bus copper bars corresponding to the live wire connecting copper sheet, the ground wire connecting copper sheet and the zero line connecting copper sheet, the structural shapes of the live wire connecting copper sheets, the ground wire connecting copper sheets and the zero line connecting copper sheets can be completely the same, the connecting copper sheets can be elastic copper sheets bent into clamping grooves, and a connecting piece on the bus duct is inserted between the clamping grooves of the elastic copper sheets, so that the bus power distribution module plugging device is in contact connection with a connecting piece on the bus duct, the specific bending shape of the elastic copper sheets is not limited in the embodiment, and the connecting piece on the. Preferably, elastic devices 213 may be further disposed on the live wire connection copper sheet, the ground wire connection copper sheet, and the neutral wire connection copper sheet, where the elastic devices 213 are used to provide a clamping force, as shown in fig. 13, the structural schematic diagram of the first wiring assembly 21 provided with the elastic devices 213 is shown, the elastic devices 213 may be springs, the springs are disposed on opposite sides of one side of the elastic copper sheet contacting with the live wire connection member, correspondingly, a mounting groove structure 121 matched with the springs is further disposed on the distribution box housing, the structural schematic diagram of the housing provided with the mounting groove structure 121 is shown in fig. 14, the structure of the connection copper sheet, the springs, and the mounting groove structure is shown in fig. 15, and the structural schematic diagram of the first plug assembly provided with the elastic devices and the bus duct is shown. The bus bar copper bar may be provided with a mounting hole, the live wire bus bar copper bar 211 may be fixed on the moving mechanism 22 by passing through the mounting hole with a screw, and the ground wire bus bar copper bar and the zero wire bus bar copper bar 311 may also be fixed on the second casing 12 by passing through the mounting hole with a screw. Still be provided with cable junction structure 23 on the busbar, cable junction structure 23 is used for connecting cable 8, and circuit breaker 6 or industrial socket 7 etc. can be connected to cable 8, still is provided with the circuit breaker cover 13 that corresponds with the circuit breaker on the first box, and this embodiment does not do the restriction to the concrete structure of circuit breaker, and air switch can be chooseed for use to the circuit breaker for example.

In the embodiment of the present invention, as shown in fig. 5, the moving mechanism 22 in the first connection module may include an insertion slot body 221 and a driving connection piece 222, the driving connection piece 222 and the insertion slot body 221 are fixedly connected, the insertion slot body 221 is used for installing the first insertion assembly 21, the first live wire bus bar 211 in the insertion assembly 21 is fixed on the insertion slot body 221 through a screw, so as to realize the installation of the first insertion assembly 21 on the insertion slot body 221. One of the inserting slot body 221 and the housing may be provided with a movable sliding rail 223, and the other may be provided with a movable sliding block 224 matched with the movable sliding rail 223, in this embodiment, the movable sliding block 224 is provided on the inserting slot body 221, and the movable sliding rail 223 is provided on the housing as an example, but not limited thereto, when the driving connecting piece 222 drives the inserting slot body 221 to move, the movable sliding block 224 moves along the movable sliding rail 223, and the movable sliding rail 223 may play a role in limiting the movement of the inserting slot body 221, so as to ensure the stability of the movement of the inserting slot body 221. The driving connection member 222 may be in a zigzag shape, but is not limited thereto, one end of the driving connection member 222 may be further provided with a moving handle 42, and an operator drives the first connector assembly 21 on the connector slot body 221 to be connected or disconnected with the live wire connection member 92 on the bus slot by moving the moving handle 42.

The embodiment of the utility model provides an in, preferably, bus bar distribution module connects and inserts device can also include spacing locking mechanism, spacing locking mechanism is used for the restriction to move the mechanism 22's of removal travel, and prevent moving mechanism 22's free movement, moving mechanism 22's free movement indicates moving mechanism 22 drives under the effect of self gravity or other external forces under the condition of non-human operation and connects subassembly 21 to remove, when moving mechanism 22 drives first connect and connects subassembly 21 to move to the state with live wire connecting piece 92 switch-on or disconnection, spacing locking mechanism can make first connect and connect subassembly 21 to keep the state of switch-on or keep the disconnection, bus bar distribution module connects and inserts the safety and stability that the device used. The specific structure of the limit locking mechanism is not limited in this embodiment, for example, the limit locking mechanism may include a limit base 41, the above-mentioned movable handle 42 and a locking member 43, wherein the limit base 41 is fixed on the first box of the housing, the movable handle 42 is fixed on the end of the driving connecting member 22 away from the plug-in slot 221, and the specific structure of the limit base 41 is not limited in this embodiment, for example, the limit base 41 may be a rectangular sleeve structure, the movable handle 42 is embedded in the limit base 41, and one of the limit base 41 and the movable handle 42 may be provided with a limit slide rail, and the other may be provided with a limit slide block matching with the limit slide rail, in this embodiment, the limit slide rail is provided on the limit base 41, the limit slide block is provided on the movable handle 42 for illustration, and the end of the limit slide rail away from the first plug-in assembly 21 is provided with a blocking structure, the situation that the force is too large when the moving handle 42 is pulled to disconnect the first connector assembly 21 from the live wire connector 92, which causes the moving slider 224 on the connector slot body 221 to be separated from the moving slide rail 223, can be avoided, and a blocking structure may be provided on the moving slide rail 223, which does not limit the stroke limiting structure of the moving mechanism 22 in this embodiment. The movable handle 42 is further provided with a locking groove matched with the locking piece 43, when the movable handle 42 is pushed to make the first plug-in module 21 extend out of the housing to be connected with the live wire connector 92 or the movable handle 42 is pulled to make the first plug-in module 21 retract into the housing to be disconnected with the live wire connector 92, the locking piece 43 can be inserted into the locking groove, two locking grooves can be arranged along the moving direction of the moving mechanism 22, namely a first locking groove 44 and a second locking groove 45 respectively, the specific structure and arrangement mode of the locking piece 43 are not limited in the embodiment, for example, the locking piece 43 can be inserted into the locking groove from the upper side, the lower side, the left side and the right side of the locking groove, as shown in the structural schematic diagram of the limiting locking mechanism shown in fig. 12, the locking piece can be inserted into the locking groove from the upper side of the locking groove, the locking piece 43 can be inserted into the locking groove in a rotating mode or in a moving mode, in the embodiment, the locking piece 43 is arranged below the movable The slot is for example, but not limited to, a locking member 43 is disposed on the housing through a screw, and the locking member 43 can be adjusted to move up and down by rotating the locking member 43.

The embodiment of the utility model provides a pair of generating line distribution module connects and inserts device, through setting up mobilizable first linking module and fixed second linking module, make second linking module connect ground wire and zero line, the live wire is connected to first linking module, when inserting the generating line distribution module and inserting the device and insert on the bus duct, earlier with zero line and the ground wire switch-on the bus duct, then make moving mechanism 22 drive first inserting and insert subassembly 21 and live wire switch-on, it is equivalent to providing one insurance to the switch-on operation, avoided generating line distribution module to insert and directly get the electricity after the device is pegged graft, the generating line guarantee distribution module connects the security that the device used. And through setting up spacing locking mechanism, when pulling removal handle 42 makes first connecing connect and insert subassembly 21 and live wire connecting piece 92 disconnection, avoid connecing and insert the removal slider 224 on the socket body 221 and break away from removal slide rail 223, and can make first connecing and insert the state that can keep switch-on or disconnection after subassembly 21 and the live wire connecting piece 92 switch-on or disconnection, avoid first connecing to insert subassembly 21 and take place to remove, ensure that the generating line distribution module connects the safety and stability who connects the device and use.

The embodiment of the utility model provides a bus bar distribution module connects and inserts device is when using, connects the second earlier and inserts ground wire connecting piece 94, zero line connecting piece 93 switch-on subassembly 3 and the bus duct, then twists lock 43 and make lock 43 break away from first locking groove 44, promotes again to remove handle 42 and makes driving connecting piece 222 drive connect insert first on the groove body 221 and insert subassembly 21 and live wire connecting piece 92 switch-on, twists lock 43 again at last, makes lock 43 inject second locking groove 45. When disconnection is desired, the first connector module 21 is disconnected from the live wire connector 92 by pulling the movable handle after disengaging the lock member 43 from the second lock groove 45. And the elastic device is arranged on the connecting copper sheet, so that clamping force can be provided for the contact connection of the connecting copper sheet and the connecting piece on the bus duct, and the reliability of the matching of the bus distribution module plugging device and the bus duct is further ensured.

Example 2

In another embodiment of the present invention, as shown in fig. 10, the driving connection member 222 may further be provided with a gear; the moving mechanism 22 further comprises a driving component for driving the driving connecting piece 222 to move through the transmission teeth,

in the embodiment of the present invention, the specific structure of the driving connection member 222 is not limited, and the driving assembly may include a first driving gear 51 and a first rotating shaft 52, and rotating the first rotating shaft 52 causes the first driving gear 51 to engage with the transmission gear (not shown in the figure), so as to drive the first plug-in assembly 21 to move along the movable sliding rail 223 (the first driving gear 51 and the transmission gear constitute a rack-and-pinion mechanism). Preferably, a first bevel gear 54 is further provided on the first rotating shaft 52, a second bevel gear 55 engaged with the first bevel gear 54 and a second rotating shaft 53 connected to the second bevel gear 55 are further provided, a knob 56 is provided at an end of the second rotating shaft 53 extending out of the housing, and the knob 56 can be directly operated to adjust the connection or disconnection of the first connector assembly 21 and the live wire connector 92.

The embodiment of the utility model provides a pair of generating line distribution module connects and inserts device, through set up the driving gear on drive connection spare 222, and the setting can with driving gear meshing driven first drive gear 51, can realize first removal of inserting subassembly 21 through first drive gear 51 rotary motion, it is limited to avoid generating line distribution module to connect the installation space who inserts the device, it is not enough to insert subassembly 21 removal operating space through push-and-pull removal handle 42 drive first, and insert subassembly 21 removal through knob 56 drive first, the outside moving direction who inserts subassembly 21 along first of inserting of casing can not need too big operating space, the flexibility that the device installation was used is inserted to generating line distribution module has been improved.

Example 3

In another embodiment of the present invention, as shown in fig. 11, a bus bar system is provided, which includes a bus duct and a bus bar power distribution module connector device as described above.

The embodiment of the utility model provides an in, the bus duct can include bus duct casing 91, live wire connecting piece 92, zero line connecting piece 93 and ground wire connecting piece 94, wherein live wire connecting piece 92 can with zero line connecting piece 93, ground wire connecting piece 94 set up the direction mutually perpendicular on bus duct casing 91. For example, the busway housing 91 may be an L-shaped structure, the busway housing 91 is further provided with insulating supports 95, the insulating supports 95 are distributed on two adjacent side surfaces of the busway housing 91, and the insulating supports 95 are respectively used for fixing the live wire connecting piece 92, the ground wire connecting piece 94, and the zero line connecting piece 93. As shown in fig. 17, preferably, chamfers may be further disposed at intersections of two adjacent side surfaces of the bus duct case 91, so that an installation space of the bus duct case 91 may be reduced, and the installation adaptability of the bus duct may be improved.

The embodiment of the utility model provides a pair of bus system, through the direction that sets up direction and ground wire connecting piece 94 and the direction mutually perpendicular that sets up of live wire connecting piece 92 on the bus duct, and make the generating line distribution module connect and connect the first portable setting of inserting subassembly 21 of inserting of being connected with the live wire in the cartridge, when generating line distribution module connects the plug-in mounting and is connected with the bus duct, can make the second insert subassembly 3 and ground wire connecting piece 94 and zero line connecting piece 93 and be connected earlier, then promote first inserting subassembly 21 and be connected with live wire connecting piece 92 of inserting again, it is equivalent to providing one insurance to the switch-on operation, avoided supplying the distribution module directly to get the electricity after pegging graft, the security that ensures bus system used.

Example 4

In another embodiment of the present invention, there is also provided a distribution box, which includes a cabinet body and the bus bar system.

The embodiment of the utility model provides an in, the restriction is not done to the concrete structure of block terminal, for example the cabinet body can rectangle box structure, is provided with the cabinet door on the cabinet body, and bus-bar system sets up at the internal of cabinet.

The embodiment of the utility model provides a pair of block terminal, through setting up foretell generating line system, when supplying distribution module and bus duct switch-on, can avoid supplying distribution module to peg graft the back and directly get the electricity, ensured the security that the block terminal used.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (11)

1. A bus bar power distribution module connector device, comprising: the device comprises a shell, a first connecting module and a second connecting module;

the first connecting module is movably arranged in the shell and comprises a first plug-in component and a moving mechanism, the first plug-in component is used for connecting a live wire connecting piece on the bus duct, and the moving mechanism is used for driving the first plug-in component to move;

the second connecting module is fixedly arranged on the shell and comprises a second plug assembly, and the second plug assembly is used for connecting a zero line connecting piece and a ground wire connecting piece on the bus duct.

2. The busbar distribution module connector assembly of claim 1, wherein said movement mechanism includes a connector housing and a drive connection;

the plug-in slot body is used for mounting the first plug-in assembly, one of the plug-in slot body and the shell is provided with a movable slide rail, and the other one of the plug-in slot body and the shell is provided with a movable slide block matched with the movable slide rail;

the driving connecting piece is fixedly arranged on the inserting groove body and used for driving the inserting groove body to move.

3. The busbar distribution module connector assembly of claim 1 further comprising a limit lock mechanism for limiting the travel of said moving mechanism and preventing said moving mechanism from moving freely.

4. The busbar distribution module connector assembly of claim 3, wherein said limit locking mechanism includes a limit base, a movable handle and a locking member;

the moving handle is fixedly connected with the moving mechanism;

the limiting base is fixed on the shell, one of the limiting base and the moving handle is provided with a limiting slide rail, and the other one of the limiting base and the moving handle is provided with a limiting slide block matched with the limiting slide rail;

the locking piece is arranged on the shell, and the movable handle is further provided with a locking groove matched with the locking piece.

5. The bus bar power distribution module connector assembly of claim 2,

the driving connecting piece is provided with a transmission gear;

the moving mechanism further comprises a driving assembly, and the driving assembly is used for driving the driving connecting piece to move through the transmission teeth.

6. The busbar power distribution module connector of claim 1,

the first connector assembly comprises: the live wire bus copper bar and the live wire connecting copper sheet are arranged on the live wire bus copper bar;

the second connector assembly comprises: the ground wire plug assembly and the zero line plug assembly; the ground wire plug-in assembly comprises a ground wire bus copper bar and a ground wire connecting copper sheet arranged on the ground wire bus copper bar; the zero line plug assembly comprises a zero line bus copper bar and a zero line connecting copper sheet arranged on the zero line bus copper bar.

7. The busbar distribution module connector of claim 6, wherein said live, ground and neutral connection copper strips are provided with resilient means for providing a clamping force.

8. The bus bar distribution module connector assembly of claim 1, further comprising a circuit breaker, said circuit breaker being connected to said first connector assembly and said second connector assembly, respectively.

9. A bus bar system, comprising: a bus duct and a bus bar power distribution module connector device as claimed in any one of claims 1 to 8.

10. The bus bar system of claim 9, wherein the bus bar slot comprises: the bus duct comprises a bus duct shell, a live wire connecting piece, a zero line connecting piece and a ground wire connecting piece;

the arrangement direction of the live wire connecting piece on the bus duct shell is mutually perpendicular to the arrangement direction of the zero line connecting piece and the ground wire connecting piece on the bus duct shell.

11. An electrical box, characterized in that the electrical box comprises: a cabinet and a bus bar system as claimed in any one of claims 9 to 10.

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