Distribution box

Abstract

The invention discloses a power distribution box, belongs to the technical field of power distribution cabinets, and solves the problems of electric connection of different sides and stability of the connected power distribution box, the technical scheme for solving the problems mainly comprises a shell and a panel, the shell is provided with an observation window, the panel is arranged at the observation window in a turnover manner, a cavity is formed in the shell, and the cavity is provided with a through hole. A power distribution system is arranged in the cavity and comprises a main switch circuit breaker and a plurality of branch switch circuit breakers arranged side by side, and the main switch circuit breaker is electrically connected with the adjacent branch switch circuit breaker through a connecting accessory and a power distribution module. One side of the connecting accessory is electrically connected with the main switch circuit breaker on the lower side, the other side of the connecting accessory is electrically connected with the power distribution module on the upper side, and the adjacent branch switch circuit breakers are electrically connected on the same side through the power distribution module. Connection between the lower side of the main switch circuit breaker and the upper side of the branch switch circuit breaker is mainly facilitated, the upper side and the lower side of the connection accessory are connected, the power distribution module is connected to the upper side, and the connection stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to a power distribution box. Background Art

[0002] A distribution box is a power box used to reasonably distribute electric energy, facilitate the opening and closing of circuits, have a high level of safety protection, and can intuitively display the conduction status of circuits. A distribution box is a low-voltage distribution box composed of switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment assembled in a closed or semi-closed cabinet or on a screen according to the wiring requirements of electrical appliances. In normal operation, the circuit can be connected or disconnected with the help of a manual switch or an automatic switch. In case of a fault or abnormal operation, the circuit can be cut off or an alarm can be sounded with the help of protective electrical appliances. With the help of measuring instruments, various parameters in operation can be displayed, and some parameters can also be adjusted to give prompts or send signals for deviations from normal operating conditions.

[0003] The main switch and sub-switch in the existing distribution box are electrically connected by wires and screws. Since the total number of main switch and sub-switch is large, the wires are relatively messy after being directly connected by wires, which is easy to be confused during installation and may be accidentally touched during subsequent maintenance.

[0004] In order to solve the above-mentioned problems caused by direct connection of wires, the prior art CN202320962908.5 discloses a bridge structure and a functional module device, wherein the bridge structure includes: a bridge body, the side of the bridge body electrically connected to the functional module is the bottom surface; a plurality of groups of conductive components, each group of conductive components is respectively embedded in the bridge body, and the two ends of each first conductive component extend from the bridge body to form a first bridge arm and a second bridge arm. The bridge structure increases the stability of the connection, and the whole is used as a modular design, which is more convenient for inserting the functional module. When in use, it only needs to be unplugged and inserted between two functional modules to achieve on-off.

[0005] However, it can be seen from the drawings in the specification of the prior art that when the bridging structure is connected, since the first bridging arm and the second bridging wall are both on the same side of the bridging body, they can only be connected to the plug-in holes on the same side when plugged in, and the bridging structure is located in front of the switch circuit breaker. Under large vibrations, the bridging structure can easily be detached from the plug-in hole and affect the stability of the distribution box. Summary of the invention

[0006] The purpose to be achieved by the present invention is to provide a distribution box to solve the problems of electrical connection on different sides and the stability of the distribution box after connection, to facilitate the connection between the lower side of the main switch and the upper side of the branch switch, to connect the upper and lower sides of the connection accessories, and to connect the distribution module to the upper side, thereby improving the stability of the connection.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a distribution box, comprising a shell and a panel, the shell is provided with an observation window, the panel can be flipped and arranged at the observation window, a cavity is formed in the shell, and a distribution system is arranged in the cavity, the distribution system comprises a main switch breaker and a plurality of branch switches and breakers arranged side by side, the main switch breaker is electrically connected to an adjacent branch switch breaker through a connecting accessory and a distribution module, one side of the connecting accessory is electrically connected to the main switch breaker at the lower side, and the other side is electrically connected to the distribution module at the upper side, and adjacent branch switches and breakers are electrically connected on the same side through the distribution module.

[0008] After adopting the above technical scheme, the present invention has the following advantages: an observation window is arranged on the shell, and the panel can be flipped over at the observation window, so that the power distribution system can be installed through the front side of the shell, and when a short circuit or other power consumption situation occurs, it is also convenient to detect the circuit through the observation window; a main switch circuit breaker is installed in the cavity, and a plurality of branch switches circuit breakers are installed side by side, and different circuit distributions in the room are separately controlled by the branch switches circuit breakers, such as separate control of lighting, plug boards, and large electrical appliances, and then the main branch circuit breaker is electrically connected to each branch switch circuit breaker for overall control, so as to avoid the on-off problem of a single control unit affecting the on-off of power consumption in the entire room, and when the main switch circuit breaker and the branch switch circuit breaker are connected, they are connected through a connecting accessory, and the lower side of the connecting accessory is connected to the lower side of the main switch circuit breaker, and the upper side is connected to the branch switch circuit breaker, which is similar to the existing Compared with the existing technology, the setting of the connecting accessories facilitates the connection between the lower side of the main switch circuit breaker and the upper side of the sub-switch circuit breaker, and the upper side of the connecting accessories is connected to the adjacent sub-switch circuit breakers through the distribution module; after the connecting accessories and the distribution module are connected, they remain plugged in with the main switch circuit breaker and the sub-switch circuit breaker, and form mutual obstruction in the front and rear directions, avoiding the connection accessories or the distribution module and the main switch circuit breaker and the sub-switch circuit breaker. Disconnection affects the stability of the distribution box due to large vibration. The connecting accessories and the distribution module connect the main switch circuit breaker and the sub-switch circuit breaker at the upper and lower sides, reducing the gap between the main switch circuit breaker and the sub-switch circuit breaker and the inner side of the shell in the upper and lower directions, further reducing the possibility of the connection accessories or the distribution module and the main switch circuit breaker and the sub-switch circuit breaker Disconnection, further improving the stability of the distribution box.

[0009] Furthermore, the connecting accessory includes an accessory shell, a first conductive connection component, a first plug-in component and a second plug-in component. The accessory shell is arranged between the main switch breaker and the branch switch breaker connected to the main switch breaker. The first conductive connection component is arranged in the accessory shell. The first plug-in component and the second plug-in component are electrically connected to the first conductive connection component and are arranged at both ends of the first conductive connection component. The first plug-in component is plug-connected to the main switch breaker, and the second plug-in component is electrically connected to the branch switch breaker.

[0010] By adopting the above-mentioned technical scheme, when the connecting accessories are connected to the main switch circuit breaker and the sub-switch circuit breaker, the lower side is plugged into the main switch circuit breaker through the first plug-in component, and the upper side is plugged into the distribution module through the second plug-in component; both sides are connected by plugging, which further improves the stability of the connection between the main switch circuit breaker and the sub-switch circuit breaker, and the upper and lower sides are connected by the first conductive connection component, thereby improving the stability of the electrical connection between the connecting accessories.

[0011] Furthermore, the branch switch and the second plug-in assembly are electrically connected via a power distribution module.

[0012] By adopting the above-mentioned technical solution, when the second plug-in assembly is plugged and connected to the branch switch, the plug-in connection is performed through the power distribution module, thereby improving the stability of the connection between the upper side of the connection accessory and the branch switch.

[0013] Furthermore, the power distribution module includes a module housing, a second conductive connection component, a third plug-in component and a fourth plug-in component. The module housing is arranged between the connection accessory and the branch switch, the second conductive connection component is arranged in the module housing, the third plug-in component and the fourth plug-in component are electrically connected to the second conductive connection component and are arranged at both ends of the second conductive connection component, the third plug-in component is plugged into the second plug-in component for electrical connection, and the fourth plug-in component is plugged into the branch switch for electrical connection.

[0014] By adopting the above-mentioned technical scheme, when the distribution module is specifically connected, the third plug-in component is plug-connected with the second plug-in component to improve the stability of the connection between the connection accessory and the distribution module. The distribution module and the branch switch are connected through the fourth plug-in component to improve the stability of the connection between the distribution module and the branch switch, thereby improving the stability of the connection between the connection accessory and the branch switch as a whole. The third plug-in component and the fourth plug-in component are connected through the second conductive connection component to ensure the stability of the internal electrical connection of the distribution module.

[0015] Furthermore, the module housing is provided with a fifth plug-in component, the fifth plug-in component is electrically connected to the second conductive connection component, and the fifth plug-in component is plugged with a third plug-in component of another adjacent power distribution module to be electrically connected.

[0016] By adopting the above-mentioned technical solution, a fifth plug-in component is provided on the module housing, and the fifth plug-in component is electrically connected to the second conductive connection component to ensure the stability of the electrical connection. The fifth plug-in component is then plugged into the third plug-in component on another distribution module to achieve electrical connection, thereby improving the stability of the electrical connection between adjacent disconnectors and ensuring the stability of the electrical connection between the main switch disconnector and each disconnector.

[0017] Furthermore, the module housing is provided with a sliding paddle, which slides along the plug-in direction of the fourth plug-in component to drive the plug-in portion of the fourth plug-in component to extend out of the module housing for plug-in connection or retract into the module housing, and the sliding paddle is connected to the fourth plug-in component by a clamping connector.

[0018] By adopting the above-mentioned technical solution, for the power distribution module, a sliding paddle is provided on the module housing, and the sliding paddle is used to drive the plug-in part of the first plug-in component to slide, so as to facilitate extension when plugging is required and contraction when plugging is not required, so as to avoid the plug-in part of the fourth plug-in component being extended and squeezed and deformed when plugging is not required, thereby affecting the plug-in effect. The sliding paddle is connected to the second conductive connection component by means of a clamping connector, so as to avoid the fourth plug-in component sliding and affecting the electrical connection between the fourth plug-in component and the second conductive connection component.

[0019] Furthermore, a mounting frame is provided on the rear side wall of the shell, and a convex rib protrudes from the rear side of the mounting frame, and the convex rib and the rear side of the mounting frame form a clamping platform. The rear sides of the main switch circuit breaker and the sub-switch circuit breaker are provided with clamping parts. The main switch circuit breaker and the sub-switch circuit breaker are arranged on the mounting frame along the front-to-back direction, and are clamped by the clamping parts and abut against the clamping platform to stabilize the main switch circuit breaker and the sub-switch circuit breaker.

[0020] By adopting the above-mentioned technical solution, when the power distribution system is installed in the cavity of the shell, it is installed through the mounting frame, which is convenient for determining the position of the main switch circuit breaker and the separate circuit breakers, and avoiding the main switch circuit breaker and the separate circuit breakers from deviating in the up and down directions and affecting the electrical connection between the connection accessories and the power distribution module; in specific installation, the main switch circuit breaker and the separate circuit breakers are connected to the mounting frame through the clamping platform and the clamping parts, which simplifies the installation process and ensures the stability after installation.

[0021] Furthermore, a cover plate is provided on the front side of the shell, the panel is provided on the cover plate, and the end of the mounting frame forms a first folded edge and a second folded edge parallel to each other, the first folded edge is fixed to the front side of the shell, and the second folded edge is fixed to the cover plate.

[0022] By adopting the above-mentioned technical solution, when the mounting frame is installed, the first folded edge is fixed to the front side of the shell, thereby stabilizing the mounting frame; after the cover plate is installed, the cover plate is fixed to the second folded edge to improve the stability of the connection between the shell, the mounting frame and the cover plate.

[0023] Furthermore, it also includes a junction module for connecting the neutral line or the ground line, the junction module of the ground line is connected to the main switch breaker through a distribution module, and the junction module of the neutral line is electrically connected to the branch switch breaker through a distribution module.

[0024] By adopting the above-mentioned technical scheme, the junction module of the ground wire is connected to the main switch circuit breaker through the distribution module to ensure that the main switch circuit breaker and the sub-switch circuit breaker are grounded, and the junction module of the neutral wire is electrically connected to the sub-switch circuit breaker through the distribution module to ensure that the main switch circuit breaker and the sub-switch circuit breaker are zeroed, so that the main switch circuit breaker and the sub-switch circuit breaker, the neutral wire and the ground wire are connected.

[0025] Furthermore, the side wall of the junction module is provided with an expansion window, a sixth plug-in component is provided in the expansion window, the sixth plug-in component is plugged with the expansion component to be electrically connected, and a cover is detachably provided on the expansion window.

[0026] By adopting the above technical solution, an expansion window is provided on the side wall of the junction module, and a sixth plug-in component is provided in the expansion window to facilitate installation of the expansion module. The cover body is detachably provided on the expansion window to facilitate closing the expansion window when expansion is not required. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings:

[0028] Figure 1 A schematic diagram of a distribution box of the present invention;

[0029] Figure 2 It is a schematic diagram of the installation of the housing and the power distribution system in the present invention;

[0030] Figure 3 It is a structural exploded diagram of the connecting attachment in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the first plug-in assembly in the present invention;

[0032] Figure 5 is a schematic structural diagram of the second plug-in assembly in the present invention;

[0033] Figure 6 It is a structural exploded diagram of the power distribution module in the present invention;

[0034] Figure 7 It is a connection diagram of the connection accessories and the power distribution module in the present invention;

[0035] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0036] Fig. 9 is a schematic diagram of the fifth plug-in component and the second conductive connection component in the present invention;

[0037] Fig.10 It is a schematic diagram of the clamping connection between the sliding paddle and the clamping portion in the present invention;

[0038] Fig.11A schematic diagram of the second plug-in board in the present invention being retracted into the module housing;

[0039] Fig.12 It is a schematic diagram of the clamping connection between the mounting frame and the branch switch in the present invention;

[0040] Fig.13 For the present invention Figure 2 Enlarged view of point A in the middle;

[0041] Fig.14 It is a schematic diagram of the tandem module in the present invention. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] The terms "first", "second", etc. (if any) in the specification and claims of the present invention are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that "first" is present. It should be understood that in the present invention, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present invention, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "Containing X, Y and Z", "Containing X, Y, Z" means that X, Y, and Z are all included, "Containing X, Y or Z" means that one of X, Y, and Z is included, and "Containing X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0044] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0045] like Figure 1As shown, the present invention provides a distribution box, including a shell 1 and a panel 2, the shell 1 is provided with an observation window 21, the panel 2 can be flipped and arranged at the observation window 21, a cavity is formed in the shell 1, and a distribution system 3 is arranged in the cavity; the flippable arrangement of the panel 2 is convenient for the distribution system 3 to be shielded at the front side of the shell 1 after the overall installation, so as to prevent dust and the like from entering the shell 1, and when it is necessary to check the circuit, the panel 2 is flipped and exposed in the observation window 21, so that it is convenient for maintenance personnel to check the situation in the shell 1 through the observation window 21; specifically, as Figure 2 As shown, the power distribution system 3 includes a main switch breaker 31 and a plurality of branch switches 32 arranged side by side. The main switch breaker 31 is electrically connected to an adjacent branch switch breaker 32 via a connecting accessory 4 and a distribution module 5. One side of the connecting accessory 4 is electrically connected to the main switch breaker 31 at the bottom, and the other side is electrically connected to the distribution module 5 at the top. Adjacent branch switches 32 are electrically connected on the same side via the distribution module 5.

[0046] Specifically, Figure 2 and Figure 3 As shown, the connection accessory 4 includes an accessory housing 41, a first conductive connection component 42, a first plug-in component 43 and a second plug-in component 44. The accessory housing 41 is disposed between the main switch breaker 31 and the branch switch breaker 32 connected to the main switch breaker 31. An installation cavity 411 is formed in the accessory housing 41. The first conductive connection component 42 is disposed in the installation cavity 411 in the accessory housing 41. The first plug-in component 43 and the second plug-in component 44 are electrically connected to the first conductive connection component 42 and are disposed at both ends of the first conductive connection component 42. The first plug-in component 43 is plug-connected to the main switch breaker 31, and the second plug-in component 44 is electrically connected to the branch switch breaker 32 through the power distribution module 5. Specifically, as shown in FIG. Figure 2 As shown, the first conductive connection component 42 extends in the up-down direction. Figure 3 and Figure 4 As shown, the first plug-in assembly 43 includes a first connecting plate 431 and a first plug-in plate 432. The first connecting plate 431 is on the lower side of the first conductive connecting assembly 42 and extends in the left-right direction to the lower side of the main switch breaker 31. The first plug-in plate 432 is arranged at the tail end of the first connecting plate 431. The first plug-in plate 432 extends upward and is plugged into the connecting hole of the main switch breaker 31 from the lower side upward, thereby completing the plug-in connection between the lower side of the connecting accessory 4 and the lower side of the main switch breaker 31. The second plug-in assembly 44 is on the upper side of the first conductive connecting assembly 42, as shown in FIG. Figure 3 and Figure 5 As shown, the second plug-in component 44 includes a first plug socket 441 and a first plug hole 442 provided on the first plug socket 441 . The length direction of the first plug hole 442 is the same as the length direction of the first conductive connection component 42 . The first plug hole 442 is plugged into the power distribution module 5 for electrical connection.

[0047] like Figure 2 and Figure 6 As shown, the power distribution module 5 includes a module housing 51, a second conductive connection component 52, a third plug component 53 and a fourth plug component 54. A receiving cavity for receiving the second conductive connection component 52 is formed in the module housing 51. The second conductive connection component 52 is arranged in the module housing 51 and is located in the receiving cavity. The third plug component 53 and the fourth plug component 54 are electrically connected to the second conductive connection component 52 and are respectively arranged at both ends of the second conductive connection component 52. Specifically, as Figure 6 As shown, the third plug-in assembly 53 includes a plug-in sealing plate 531 and a plug-in pin 532 arranged on the plug-in sealing plate 531. The plug-in sealing plate 531 and the plug-in pin 532 are arranged on one side of the second conductive connection assembly 52 close to the first plug-in hole 442. The extension direction of the plug-in pin 532 is consistent with the length direction of the first plug-in hole 442. When the connection accessory 4 is electrically connected to the power distribution module 5, the plug-in pin 532 extends into the first plug-in hole 442 to achieve plug-in electrical connection; Figure 6 As shown, the fourth plug-in component 54 includes a connector 541 and a second plug-in board 542. The second plug-in board 542 is the plug-in portion of the fourth plug-in component 54. The number of second plug-in boards 542 can be set to one or more according to the plug-in holes of the branch switch 32. The multiple settings are helpful for the stability of the plug-in connection. The connector 541 is fixed to the second conductive connection component 52 for electrical connection. The second plug-in board 542 is arranged at one end of the connector 541 away from the second conductive connection component 52 and extends out of the module housing 51 to be plug-in connected with the branch switch 32. The main switch 31 and the branch switch 32 are plug-in electrically connected in sequence through the first plug-in board 432, the first connecting board 431, the first conductive connection component 42, the first socket 441, the plug pin 532, the second conductive connection component 52, the connector 541 and the second plug-in board 542. Figure 7 and Figure 8 As shown, when the power distribution module 5 is connected to the connection accessory 4, one side of the connection accessory 4 is connected to the lower side of the main switch breaker 31, and the other side extends upward to the upper side of the main switch breaker 31 and is connected to the plug pin 532, so as to facilitate the connection between different sides in the upper and lower directions; and after the plug connection, in the front and rear directions of the housing 1, the main switch breaker 31 and the sub-switch breaker 32 and the first plug board 432 and the second plug board 542 are mutually limited in the front and rear directions of the housing 1 to avoid the connection accessory 4 and the power distribution module 5 from being disconnected from the main switch breaker 31 and the sub-switch breaker 32 under large vibrations, thereby affecting the stability of the distribution box connection. In addition, as Figure 2As shown, by arranging the distribution module 5 on the upper side of the main switch 31 and the sub-switch 32, the gap between the upper side of the main switch 31 and the sub-switch 32 and the inner wall of the upper side of the casing 1 is reduced, thereby reducing the possibility of separation between the distribution module 5 and the connecting accessories 4 and the sub-switch 32, thereby improving the stability of the plug-in connection of the distribution module 5.

[0048] In order to facilitate the connection between adjacent branch circuit breakers 32, as shown in FIG. Fig. 9 As shown, the module housing 51 is provided with a fifth plug-in component 55, wherein the third plug-in component 53 and the fifth plug-in component 55 are respectively arranged on the left and right sides of the module housing 51, and the fourth plug-in component 54 is located on the lower side of the module housing 51. The fifth plug-in component 55 includes a second plug-in socket 551 and a second plug-in hole 552 arranged on the second plug-in socket 551. When adjacent branch switches and circuit breakers 32 are connected, the plug-in pin 532 of the right distribution module 5 extends into the second plug-in hole 552 of the left distribution module 5 to be plug-in electrically connected; adjacent branch switch protectors are plug-in electrically connected through the fourth plug-in component 54, the fifth plug-in component 55 and the third plug-in component 53 of the two adjacent distribution modules 5.

[0049] In order to prevent the second plug board 542 from being squeezed and bent during transportation or unplugged installation, Fig. 9 , Fig.10 and Fig.11 As shown, the module housing 1 is provided with a sliding paddle 56, which is installed to slide along the plugging direction of the second plug-in board 542, and during the sliding process, drives the second plug-in board 542 to extend out of the module housing 51 for plug-in connection, or drives the second plug-in board 542 to retract into the module housing 51 to avoid being squeezed and bent during transportation or storage, thereby preventing the second plug-in board 542 from being bent and affecting the plugging of the second plug-in board 542. Fig. 9 As shown, the sliding paddle 56 is connected to the fourth plug-in assembly 54 through a clamping connector 57. Specifically, the clamping connector 57 is arranged between the sliding paddle 56 and the second plug-in board 542. The clamping connector 57 includes a second connecting plate 571 and a clamping portion 572. One end of the second connecting plate 571 is fixedly connected to the second conductive connecting assembly 52, and the other end is connected to the second plug-in board 542 through the clamping portion 572. The front side of the clamping portion 572 is clamped and fixedly connected to the sliding paddle 56, the rear side is integrally connected to the second plug-in board 542, and the middle part clamps the second connecting plate 571 away from one end of the second conductive connecting assembly 52. ​​When clamping, as shown in FIG. Fig.10As shown, there is a connecting block 573 between the clamping portion 572 and the sliding paddle 56, a first hook 5731 is provided on the outer side of the connecting block 573, a second hook 561 is provided on the rear side of the sliding paddle 56, and a blocking rib 562 distributed on both sides of the second hook 561 along the up-down direction is also provided on the rear side of the sliding paddle 56. The first hook 5731 is engaged with the second hook 561 in the front-to-back direction, so that the front side of the clamping portion 572 is engaged and fixedly connected with the sliding paddle 56; more specifically, the clamping portion 572 includes a first clamping rod 5721 and a second clamping rod 5722 distributed on the left and right sides, A clamping gap 5723 for clamping the second connecting plate 571 is formed between the first clamping rod 5721 and the second clamping rod 5722. The second connecting plate 571 is located in the clamping gap 5723 and is electrically conductive with the first clamping rod 5721 and the second clamping rod 5722 through surface contact. When the sliding paddle 56 slides, the first clamping rod 5721 and the second clamping rod 5722 drive the second plug-in board 542 to extend downward. When the second plug-in board 542 extends to the outermost end, the first clamping rod 5721 and the second clamping rod 5722 still maintain surface contact with the second connecting plate 571 to be electrically conductive. During transportation or storage, if Fig.11 As shown, the sliding paddle 56 is pushed to retract the second plug-in board 542 into the module housing 51, thereby preventing the second plug-in board 542 from being squeezed and bent.

[0050] In another embodiment, if Figure 2 Shown and Fig.12 As described above, a mounting frame 6 is provided on the rear side wall of the housing 1, and a convex rib 61 protrudes rearward from the middle part of the mounting frame 6. The convex rib 61 is in the middle part of the mounting frame 6, so that the convex rib 61 and the upper and lower sides of the rear side wall of the mounting frame 6 form a clamping platform 62. The rear sides of the main switch breaker 31 and the sub-switch breaker 32 are both provided with a clamping piece 321, and the clamping piece 321 is elastically arranged on the lower side of the main switch breaker 31 and the sub-switch breaker 32. When the main switch breaker 31 and the sub-switch breaker 32 are installed, the main switch breaker 31 and the sub-switch breaker 32 are abutted against the rear side, and the clamping piece 321 slides downward under the action of the inclined surface. After being installed in place, the clamping piece 321 is reset and clamped with the clamping platform 62 in the front-to-back direction, thereby stabilizing the main switch breaker 31 and the sub-switch breaker 32 in the front-to-back direction.

[0051] In order to improve the stability of the installation of the mounting frame 6, as Figure 1 , Figure 2 and Fig.13As shown, a cover plate 7 is provided on the front side of the housing 1, and the cover plate 7 is provided with a mounting opening 71 which penetrates the front and rear side walls of the cover plate 7, and an extension 72 is protruded from the inner wall of the mounting opening 71 toward the center of the mounting opening 71, and a step is formed between the front side wall of the extension 72 and the front side wall of the cover plate 7, and an observation window 21 is formed on the inner wall of the extension 72, and the upper side of the panel 2 is turned over and arranged on the top wall of the mounting opening 71; both ends of the mounting frame 6 form a first folded edge 63 and a second folded edge 64 which are parallel to each other, and the first folded edge 63 is located on the front side of the second folded edge 64, and the first folded edge 63 is fixed to the front side of the housing 1, so as to preliminarily fix the mounting frame 6 on the housing 1, and connect the main switch breaker 31 and the sub-switch 31 to the sub-switch 31. After the power distribution system 3 assembled with the switch breaker 32, the connecting accessories 4 and the power distribution module 5 is snapped onto the mounting frame 6, the cover plate 7 is placed on the front side of the housing 1 and fixed to the second folded edge 64 through the edge extension 72. The formation of the step facilitates the fixation of the second folded edge 64 and avoids affecting the covering of the panel 2 at the observation window 21; the edge extension 72 and the second folded edge 64 fix the mounting frame 6 for a second time to improve the stability of the mounting frame 6. After the cover plate 7 is installed, the cover plate 7 blocks the main switch breaker 31, the branch switch breaker 32, the connecting accessories 4 and the power distribution module 5 from detaching from the housing 1 in the front-to-back direction, thereby improving the stability of the distribution box after installation.

[0052] In another embodiment, if Figure 2 and Fig.14 As shown, the power distribution system 3 also includes a junction module 33 for a neutral line or a ground line, the junction module 33 for the ground line is connected to the main switch 31 through the distribution module 5, and the junction module 33 for the neutral line is electrically connected to the branch switch 32 through the distribution module 5, thereby improving the stability of the connection between the ground line and the junction module 33 corresponding to the ground line and the main switch 31 and the branch switch 32, and ensuring the stability of the connection between the ground line and the neutral line. In another embodiment, the side wall of the junction module 33 is provided with an expansion window 331, and the expansion window 331 is provided with a sixth plug-in component 332. When it is necessary to add an expansion component to the junction module 33, the expansion component is plugged into the sixth plug-in component 332 to be electrically connected, which facilitates the plug-in and stability of the expansion component. The sixth plug-in component 332 is generally configured to be a plug-in hole, so that a cover 333 can be detachably provided at the expansion window 331. When there is no need to add expansion components, the cover 333 closes the expansion window 331 to prevent the sixth plug-in component 332 from being exposed and dusty. When it is necessary to add expansion components, the cover 333 can be removed from the expansion window 331.

[0053] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A distribution box, comprising a shell and a panel, wherein the shell is provided with an observation window, the panel is flippably arranged at the observation window, a cavity is formed in the shell, a distribution system is arranged in the cavity, the distribution system comprises a main switch and a plurality of branch switches arranged side by side, characterized in that: The main switch breaker is electrically connected to an adjacent branch switch breaker through a connecting accessory and a distribution module. One side of the connecting accessory is electrically connected to the main switch breaker at the bottom, and the other side is electrically connected to the distribution module at the top. Adjacent branch switches are electrically connected on the same side through the distribution module.

2. The distribution box according to claim 1, characterized in that: The connecting accessory includes an accessory housing, a first conductive connection component, a first plug-in component and a second plug-in component. The accessory housing is arranged between a main switch breaker and a branch switch breaker connected to the main switch breaker. The first conductive connection component is arranged in the accessory housing. The first plug-in component and the second plug-in component are electrically connected to the first conductive connection component and are arranged at both ends of the first conductive connection component. The first plug-in component is plug-connected to the main switch breaker, and the second plug-in component is electrically connected to the branch switch breaker.

3. The distribution box according to claim 2, characterized in that: The branch switch and the second plug-in assembly are electrically connected via a power distribution module.

4. The distribution box according to claim 1, characterized in that: The power distribution module includes a module housing, a second conductive connection component, a third plug-in component and a fourth plug-in component. The module housing is arranged between the connection accessory and the branch switch. The second conductive connection component is arranged in the module housing. The third plug-in component and the fourth plug-in component are electrically connected to the second conductive connection component and are arranged at both ends of the second conductive connection component. The third plug-in component is plugged into the second plug-in component for electrical connection, and the fourth plug-in component is plugged into the branch switch for electrical connection.

5. The distribution box according to claim 4, characterized in that: The module housing is provided with a fifth plug-in component, the fifth plug-in component is electrically connected to the second conductive connection component, and the fifth plug-in component is plugged with the third plug-in component of another adjacent power distribution module to be electrically connected.

6. The distribution box according to claim 4, characterized in that: The module housing is provided with a sliding paddle, which slides along the plugging direction of the fourth plug-in component to drive the plug-in part of the fourth plug-in component to extend out of the module housing for plug-in connection or retract into the module housing, and the sliding paddle is connected to the fourth plug-in component through a clamping connector.

7. The distribution box according to claim 1, characterized in that: A mounting frame is provided on the rear side wall of the shell, and a convex rib protrudes from the rear side of the mounting frame. The convex rib and the rear side of the mounting frame form a clamping platform. The rear sides of the main switch circuit breaker and the sub-switch circuit breaker are both provided with clamping parts. The main switch circuit breaker and the sub-switch circuit breaker are arranged on the mounting frame along the front-to-back direction, and are clamped by the clamping parts and abut against the clamping platform to stabilize the main switch circuit breaker and the sub-switch circuit breaker.

8. The distribution box according to claim 1, characterized in that: The front side of the shell is provided with a cover plate, the panel is arranged on the cover plate, the end of the mounting frame forms a first folded edge and a second folded edge parallel to each other, the first folded edge is fixed to the front side of the shell, and the second folded edge is fixed to the cover plate.

9. The distribution box according to claim 1, characterized in that: It also includes a junction module for connecting the neutral line or the ground line. The junction module for the ground line is connected to the main switch breaker through a power distribution module, and the junction module for the neutral line is electrically connected to the branch switch breaker through a power distribution module.

10. The distribution box according to claim 9, characterized in that: The side wall of the junction module is provided with an expansion window, in which a sixth plug-in component is provided, the sixth plug-in component is plugged with the expansion piece to be electrically connected, and a cover body is detachably provided on the expansion window.

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