CN217036539U

CN217036539U - Plug-in frame

Info

Publication number: CN217036539U
Application number: CN202123447918.5U
Authority: CN
Inventors: 张坤峰; 宁康明
Original assignee: Shenzhen Megmeet Electrical Co Ltd
Current assignee: Shenzhen Megmeet Electrical Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-22
Anticipated expiration: 2031-12-30

Abstract

The embodiment of the utility model relates to the field of communication power supplies and discloses an inserting frame. Should insert the frame and include: the system comprises a case, a plurality of jointing clamps, a plurality of power distribution air switches, a monitoring module, a user interface board and a plurality of photovoltaic modules. The case comprises a plurality of plates which enclose a first storage area, a second storage area, a third storage area and a fourth storage area; the plurality of jointing clamps are arranged into two rows of jointing clamp groups; the plurality of power distribution switchovers are arranged into two rows of power distribution switchovers; two rows of wiring clamp groups and two rows of power distribution space opening groups are distributed in a staggered manner in the first storage area; the monitoring module and the user interface board are arranged in the second storage area; the photovoltaic modules are arranged in the third area; a plurality of photovoltaic input assemblies are arranged in the fourth storage area. The utility model has the beneficial effects that: more power distribution air switches and wiring clamps can be arranged in a limited space, and the height of the inserting frame is reduced.

Description

Plug-in frame

Technical Field

The utility model relates to the field of communication power supplies, in particular to an inserting frame.

Background

In traditional inserting the frame, distribution air switch arranges single (one row), distribution air switch way number is limited, can not satisfy user's normal distribution demand, if need dispose more distribution air switch, can only additionally be equipped with a distribution air switch dilatation unit, this distribution air switch dilatation unit is in order to be connected with former inserting the frame electricity in addition, need reserve the cable and walk the line space for former inserting the frame and the holistic height behind the distribution air switch dilatation unit is too big.

In addition, the air switch and the lightning protection device of the photovoltaic input assembly are independently arranged, the plurality of air switches and the plurality of lightning protection devices are alternately overlapped and slidably assembled on a guide rail of a panel of the inserting frame (as shown in figure 1), the height of the air switch and/or the lightning protection device is usually more than 3U, and the height of the inserting frame is further increased.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need to provide an insert frame that solves the problems of the prior art, such as limited number of insert frame circuits and excessive height.

In order to solve the technical problem, one technical scheme adopted by the embodiment of the utility model is as follows:

an insert frame comprising: the computer case comprises a plurality of plates, and the plates form a storage area in a surrounding mode; the storage areas comprise a first storage area, a second storage area, a third storage area and a fourth storage area; the plurality of jointing clamps are arranged into two rows of jointing clamp groups; the distribution air switches are arranged into two rows of distribution air switch groups; the two rows of wiring clamp groups and the two rows of distribution air switch groups are distributed in the first storage area in a staggered mode; the monitoring module and the user interface board are arranged in the second storage area; a plurality of photovoltaic modules arranged within the third region; and the photovoltaic input assemblies are arranged in the fourth storage area.

As a further improvement of the above scheme, the plate comprises a top plate, a bottom plate and side plates; the top plate and the bottom plate are oppositely arranged, the top plate is fixed at the top ends of the side plates, and the bottom plate is fixed at the bottom ends of the side plates; the side plates comprise a first side plate, a second side plate and a third side plate; the first side plate and the third side plate are arranged oppositely, and the second side plate is connected with the first side plate and the third side plate.

As a further improvement of the above aspect, the terminal holder set includes a first terminal holder set and a second terminal holder set; the first wiring clamp group is fixedly connected to the second wiring clamp group; one end of the second wiring clamp group is fixedly connected to the first side plate, and the other end of the second wiring clamp group is fixedly connected to the third side plate; one end of the distribution air switch group is fixedly connected with the first side plate, and the other end of the distribution air switch group is fixedly connected with the third side plate.

As a further improvement of the above, the distribution air switch group includes a first distribution air switch group and a second distribution air switch group; the first wiring clamp group, the second wiring clamp group, the first distribution air switch group and the second distribution air switch group are arranged in parallel.

As a further improvement of the above solution, a distance from the second side plate to the first terminal block group is smaller than a distance from the second side plate to the second terminal block group; the distance from the second side plate to the second terminal clamp group is smaller than the distance from the second side plate to the first distribution air switch group; the distance from the second side plate to the first distribution air switch group is smaller than the distance from the second side plate to the second distribution air switch group; the distance from the top plate to the first wiring clamp group is smaller than the distance from the top plate to the second wiring clamp group; the distance from the top plate to the second terminal block group is smaller than the distance from the top plate to the second distribution air switch group; the distance from the top plate to the second distribution air switch group is smaller than the distance from the top plate to the first distribution air switch group.

As a further improvement of the above scheme, the top plate is provided with a first slot-shaped hole, a second slot-shaped hole, a third slot-shaped hole and a fourth slot-shaped hole for the in and out of the cable; the first slotted hole is used for passing in and out a first cable; the second groove-shaped hole is used for entering and exiting a second wiring; the third groove-shaped hole is used for passing in and out a third cable; the fourth slotted hole is used for passing in and out a fourth cable; the first cable is a cable connected with the first terminal block group; the second cable is a cable connected to the second set of terminal blocks; the third cable is a cable connected to the first distribution air switch group; the fourth cable is a cable connected to the second distribution air switch group.

As a further improvement of the above scheme, the photovoltaic input assembly includes a photovoltaic incoming line terminal, an air switch, a lightning protection device, and a fixing member; the photovoltaic incoming line terminal, the air switch and the lightning protector are integrally arranged on the fixing piece; the air switch and the lightning protection device are horizontally arranged on the fixing piece.

As a further improvement of the above scheme, the fixing member includes a fixing member body, and the fixing member body is a rectangular plate; a side edge extends from one of the short edges of the fixing piece body in a direction perpendicular to the fixing piece body, and the side edge is provided with a pulling hole; the photovoltaic input assembly is installed in the fourth storage area in a dragging mode through the fixing piece.

As a further improvement of the above solution, the first storage area is provided with a panel, and the panel is arranged opposite to the second side plate; the first side edge of the panel is hinged to the side edge of the first side plate; and a screw capable of being screwed is fixed on a second side edge opposite to the first side edge of the panel, and the screw is used for being fixedly connected with the case.

As a further improvement of the scheme, the panel is further provided with an observation window, and the observation window is used for observing the state of the distribution air switch.

The beneficial effects of the insertion frame provided by the utility model are as follows: the distribution air switch group and the jointing clamp group are in staggered layout, so that the operability and maintainability are improved, and more distribution air switches and jointing clamps can be arranged in a limited space; the photovoltaic input assembly after modularization is lower in height, and the height of the inserting frame is reduced.

Drawings

One or more embodiments are illustrated in corresponding drawings which are not intended to be limiting, in which elements having the same reference number designation may be referred to as similar elements throughout the drawings, unless otherwise specified, and in which the drawings are not to scale.

Fig. 1 is a schematic structural view of a conventional insert frame;

fig. 2 is a schematic structural diagram of an insert frame according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a first storage area of an insertion frame according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a photovoltaic input module according to an embodiment of the present invention.

Detailed Description

The utility model is described in detail below with reference to specific embodiments, it should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the utility model.

It is to be understood that, unless otherwise expressly specified or limited, the terms "central," "longitudinal," "lateral," "upper," "lower," "vertical," "horizontal," "inner," "outer," and the like as used herein are intended to refer to those orientations and positional relationships illustrated in the drawings, and are intended to facilitate the description of the utility model and to simplify the description. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more; "and/or" includes any and all combinations of one or more of the associated listed items. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to better understand the technical scheme of the utility model, a brief description is first made on the structure of a conventional power supply plug frame.

Fig. 1 shows a conventional insertion frame 100, in which distribution air switches 10 (hereinafter, referred to as distribution air switches 10) are arranged in rows on a first panel 110 of the insertion frame 100, the number of the distribution air switches 10 is limited, and in order to meet the distribution requirement, an additional distribution air switch capacity expansion unit 200 needs to be provided, and when the distribution air switch capacity expansion unit 200 is electrically connected to the insertion frame 100 well, cables and a routing space 210 for arranging the cables need to be reserved, so that the assembled distribution air switch capacity expansion unit 200 plus the insertion frame 100 is too large in size and size.

The pv input modules 20 include an air switch 21 and a lightning arrester 22, in the conventional socket 100, the air switch 21 and the lightning arrester 22 are disposed independently of each other, and a plurality of pv input modules 20 are arranged in rows on a sliding rail (not labeled) fixed on the second panel 120, the conventional socket 100 generally has two rows of pv input modules 20, each row can be arranged with at most 6 pv input modules 20, and each row of pv input modules 20 occupies at least 3 unit heights (hereinafter referred to as 3U).

In addition, the operator needs to remove the panels (the first panel 110 and the second panel 120) before the maintenance of the electrical equipment installed inside the insertion frame 100 can be performed.

Referring to fig. 2, in view of the problems of the conventional insertion frame 100, the present invention provides another insertion frame 300, wherein the insertion frame 300 includes a plurality of power distribution openings 10, a plurality of photovoltaic input assemblies 20, a plurality of jointing clamps 30, a plurality of photovoltaic modules 40, and a chassis 50.

The cabinet 50 includes a top plate 51, a bottom plate 52, a first side plate 53, a second side plate 54, a third side plate 55, and a plurality of cross bars 56, wherein the top plate 51, the bottom plate 52, the first side plate 53, the second side plate 54, and the third side plate 55 enclose a rectangular parallelepiped space in which some electrical devices can be installed.

The top plate 51 and the bottom plate 52 are oppositely arranged, the top plate 51 is fixed on the top end surfaces of the side plates (the first side plate 53, the second side plate 54 and the third side plate 55), the bottom plate 52 is fixed on the bottom end surfaces of the side plates, the first side plate 53 and the third side plate 55 are oppositely arranged, and the second side plate 54 is connected between the first side plate 53 and the third side plate 55.

In order to provide sufficient rigidity to the plates (the top plate 51, the bottom plate 52, the first side plate 53, the second side plate 54, and the third side plate 55) constituting the enclosure 50, a fixing rod 56 may be fixedly connected to the surface of the plate.

At least three partition plates parallel to the top plate 51 and/or the bottom plate 52 are fixed inside the enclosure 50, the three partition plates partition the internal space of the enclosure 50 into four storage areas, and the inside of the enclosure 50 is sequentially partitioned into a first storage area, a second storage area, a third storage area and a fourth storage area by the partition plates in the direction from the top plate 51 to the top plate 52.

In the first storage region, located opposite the second side panel 54, there is a panel 57, one side of the panel 57 being hinged to the side of the side panel adjacent thereto, in this embodiment the first side of the panel 57 being hinged to the side of the first side panel 53.

A second side of panel 57 opposite to the first side is connected to a screw 571 that can be screwed, and a maintenance person can open panel 57 from enclosure 50 by loosening screw 571, or close panel 57 and then screw 571 tightly, so that panel 57 and enclosure 50 are locked.

The first side edge is a side edge of the panel 57 close to the first side panel 53, and the second side edge is a side edge of the panel 57 opposite to the first side edge.

As shown in fig. 2 and 3(a), a plurality of power distribution switches 10 and a plurality of terminal clamps 30 are installed in the first storage area.

The plurality of air distribution switches 10 are slidably mounted on two slide rail assemblies 60 to form a first air distribution switch group 11 and a second air distribution switch group 12, each slide rail assembly 60 comprises a slide rail 61 and a bracket 62 for fixing the slide rail 61, one end of the bracket 61 is detachably and fixedly connected to the first side plate 53, and the other end of the bracket 61 is detachably and fixedly connected to the third side plate 55.

The panel 57 is provided with an observation window 572 so that the state of the power distribution opening 10 in the cabinet 50 can be observed.

The plurality of wire clamps 30 are fixedly mounted on the two copper bars 70 to form a first wire clamp group 31 and a second wire clamp group 32. The copper bar 70 comprises a first copper bar 71 and a second copper bar 72, and two ends of the first copper bar 71 are detachably and fixedly connected with the second copper bar 72 through a folded plate 73; one end of the second copper bar 72 is detachably and fixedly connected to the first side plate 53, and the other end is detachably and fixedly connected to the third side plate 55.

The surface of the copper bar 70 may be covered with an insulating sheet (not labeled) for shielding the copper bar 70, so as to avoid the danger of electric shock caused by the maintenance personnel touching the copper bar 70 by mistake.

The first power distribution air switch group 11, the second power distribution air switch group 12, the first terminal block group 31, and the second terminal block group 32 are parallel to each other in the first storage region.

As shown in fig. 3(b), in the X direction, specifically, the distance D1 from the second side plate 54 to the first terminal group 31 is smaller than the distance D2 from the second side plate 54 to the second terminal group 32, the distance D2 from the second side plate 54 to the second terminal group 32 is smaller than the distance D3 from the second side plate 54 to the first power distribution group 11, and the distance D3 from the second side plate 54 to the first power distribution group 11 is smaller than the distance D4 from the second side plate 54 to the second power distribution group 12.

In the Z direction, a distance H1 from the top plate 51 to the first terminal group 31 is smaller than a distance H2 from the top plate 51 to the second terminal group 32, a distance H2 from the top plate 51 to the second terminal group 32 is smaller than a distance H3 from the top plate 51 to the second distribution space group 12, and a distance H3 from the top plate 51 to the second distribution space group 12 is smaller than a distance H4 from the top plate 51 to the first distribution space group 11.

Because the upper and lower rows of power distribution air switch groups (the first power distribution air switch group 11, the second power distribution air switch group 12) and the upper and lower rows of wiring clamp groups (the first wiring clamp group 31, the second wiring clamp group 32) are distributed in a staggered manner in the first storage region, more power distribution air switches 10 and wiring clamps 30 can be arranged in a limited space, under the condition that the overall size of the insertion frame 300 is not increased greatly, the power distribution requirements of more users are met, and when the screwdriver is used for operating the first wiring clamp group 31, such as wiring, dismounting and the like, the second wiring clamp group 32 does not influence the operation, and the operability and the maintainability are improved.

It should be noted that "up and down" refers to the direction of the Z coordinate axis, where "up" refers to the direction of the Z axis; the front and back are the directions of the X coordinate axes, wherein the front is the direction of the X axis.

Referring to fig. 2 (c), a first slot-shaped hole 511, a second slot-shaped hole 512, a third slot-shaped hole 513 and a fourth slot-shaped hole 514 are formed in the top plate 51, the first slot-shaped hole 511 is used for passing in and out a first cable connected to the first terminal clamp group 31, the second slot-shaped hole 512 is used for passing in and out a second cable connected to the second terminal clamp group 32, the third slot-shaped hole 513 is used for passing in and out a third cable connected to the first distribution switch group 11, and the fourth slot-shaped hole 514 is used for passing in and out a fourth cable connected to the second distribution switch group 12.

Flame-retardant brushes (not marked) are adhered to the edges of the groove-shaped holes (the first groove-shaped hole 511, the second groove-shaped hole 512, the third groove-shaped hole 513 and the fourth groove-shaped hole 514), and the flame-retardant brushes can play a role in combing cables and preventing foreign matters from falling into the first storage area.

In some embodiments, a binding wire hole 516 can be further formed in the top plate, and the binding wire hole 516 is arranged around the groove-shaped hole and used for binding and fixing the cables (the first cable, the second cable, the third cable and the fourth cable).

The connection ports of the power distribution opening 10 and the connection ports of the terminal clamps 30 are upward, so that cables electrically connected with the connection ports can be better led in or led out through the groove-shaped holes in the top plate 51.

It can be understood by those skilled in the art that the number of the power distribution switch 10 and the wiring clamp 30 can be increased or decreased according to the power distribution requirement, for example, when the power distribution requirement is smaller, there may be only one row of the power distribution switch 10 and one row of the wiring clamp 30, and when the power distribution requirement is larger, the number of the power distribution switch 10 and the wiring clamp 30 can be increased to form two rows of the power distribution switch 10 and two rows of the wiring clamp 30.

Referring to fig. 2 (c), the second storage area is installed with a monitor module 80 and a user interface board 90. The monitoring module 80 is used for controlling the photovoltaic module 40 to work and collecting the working state of the plug-in frame 300, and a network cable interface (not marked) is arranged on the monitoring module 80 and can transmit the working state of the plug-in frame 300 to a background remote monitor (not marked); the user interface board 90 is used as a signal interface, and a user can add a signal sensor, such as a door sensor, a smoke sensor, etc., to the user interface board 90.

A plurality of photovoltaic modules 40 are installed in the third storage area, eight photovoltaic modules 40 are provided in this embodiment, and eight photovoltaic modules 40 are arranged in two rows and four columns in the third storage area.

In the fourth storage area, a plurality of partition plates are criss-cross to divide the fourth storage area into a plurality of panes, and the photovoltaic input assembly 20 is installed in the panes in a dragging mode. In this embodiment, the fourth storage area has eight panes, the eight panes are arranged in two rows and four columns, and one photovoltaic input module 20 is installed in each pane.

Referring to fig. 4, the photovoltaic input module 20 includes an air switch 21, a lightning arrester 22, a photovoltaic inlet terminal 23, and a fixing member 24, wherein the air switch 21, the lightning arrester 22, and the photovoltaic inlet terminal 23 are integrally disposed on the fixing member 24.

The fixing member 24 includes a fixing member body 241, the fixing member body 241 is a rectangular plate, a pair of long sides and a short side of the rectangular plate extend from the surface of the fixing member body 241 to a direction perpendicular to the fixing member body 241 to form a side edge 242, and the side edge 242 on the short side (hereinafter referred to as short side edge) is provided with a pulling hole 243 and a plurality of mounting holes (not shown).

The air switch 21 and the lightning protector 22 are horizontally arranged on the fixing body 241 to reduce the height of the photovoltaic input assembly 20, and the horizontal arrangement means that the shortest side of the length, the width and the height of the air switch 21 and/or the lightning protector 22 is perpendicular to the fixing body 241.

The photovoltaic input terminal 23 and the indicator lamp 25 are fitted on the short side edge through the mounting hole. The photovoltaic input terminal 23 and the air switch 21 (and/or the lightning protection device 22) are respectively arranged at two sides of the short side edge and are electrically connected with the air switch 21 through the mounting hole, so that the photovoltaic input terminal 23 is exposed on the surface of the inserting frame 300, and a cable can be conveniently connected into the photovoltaic input terminal 23; the indicator light 25 is used to display the status of the lightning protector 22.

In the embodiment, the air switch 21, the lightning arrester 22 and the photovoltaic incoming line terminal 23 are integrally installed on the fixing member 24, so that the photovoltaic input assembly 20 is modularized, and the height of the modularized photovoltaic input assembly 20 is 1U, so that the height of the photovoltaic input assembly 20 is reduced and the installation space is saved without increasing the overall length and width of the insertion frame 300; the eight modularized photovoltaic input components 20 are assembled in the fourth storage area in a matrix distribution mode in a dragging mode, and the storage area of the inserting frame 300 is reasonably utilized; maintenance personnel can pull the photovoltaic input assembly 20 through the pulling holes 243 in the short-side edge, pull the photovoltaic input assembly 20 out, and then overhaul the photovoltaic input assembly 20, so that the assembly and disassembly are simplified.

The photovoltaic input assembly 20 is used as an input port of alternating current and is connected with power supply equipment through a cable; the photovoltaic module 40 is used for converting alternating current input by the photovoltaic input assembly 20 into stable-48V voltage; the power distribution switch 10 and the terminal clamp 30 are used as output ports of direct current power distribution to supply power to different user devices.

The power distribution operation process of the power supply plug frame 300 provided by the embodiment is as follows:

s1, the screw 571 on the panel 57 is unscrewed, and the panel 57 is opened.

And S2, before wiring, the distribution air switch 10 is confirmed to be in a disconnected state, and wiring operation is performed in a sequence of firstly 'after' and then 'before', namely, the first wiring clamp group 31, the second wiring clamp group 32, the first distribution air switch group 11 and the second distribution air switch group 12 are sequentially wired according to the distance from the second side plate 54 from small to large.

S3, when the first wiring clamp group 31 is connected, firstly, a cable used for being connected with the first wiring clamp group 31 passes through the first groove-shaped hole 511, then a screw of the wiring clamp 30 needing to be connected is loosened by using a screwdriver, then a cable terminal is inserted into a corresponding wiring opening of the wiring clamp 30, and finally the screw of the wiring clamp 30 is screwed; when the wire connecting clip 30 of the second wire connecting clip group 32 is connected, the wire for connecting with the second wire connecting clip group 32 is firstly passed through the second slot-shaped hole 512, and the rest steps are similar to the wire connecting operation of the first wire connecting clip group 31.

Because the upper and lower two rows of wiring clamp groups (the first wiring clamp group 31 and the second wiring clamp group 32) are staggered from front to back, the maintenance personnel can conveniently use the screwdriver to loosen and tighten the screws of the wiring ports, and the front operation of the wiring clamp 30 is ensured.

S4, when the first power distribution air switch group 11 is connected, firstly, a cable used for being connected with the first power distribution air switch group 11 penetrates through the third groove-shaped hole 513, then a screw of the power distribution air switch 10 needing to be connected is loosened by using a screwdriver, then a cable terminal is inserted into a corresponding connecting port of the power distribution air switch 10, and finally the screw of the power distribution air switch 10 is screwed; when the second distribution air switch group 12 is connected, the cable for connecting with the second distribution air switch group 12 is firstly passed through the fourth slotted hole 514, and the rest steps are similar to the connection operation of the first distribution air switch group 11.

Because the upper row of distribution air switch groups (the first distribution air switch group 11 and the second distribution air switch group 12) and the lower row of distribution air switch groups are staggered from front to back, the connection of the first distribution air switch group 11 and the connection of the second distribution air switch group 12 are not interfered with each other, and cables are led out from the top plate through the slot-shaped holes, so that the distribution orderliness and neatness of the cables are improved, and the operation of wiring and disconnecting the target cables by maintenance personnel can be completed quickly; the cables for connecting the first distribution switch group 11 directly pass through the rear of the second distribution switch group 12, and the length of the cables is shortened.

Compared with other wiring sequences, the wiring sequence of the plug-in frame 300 provided by the embodiment has the beneficial effects that: after the previous step is completed, the next step has larger operation space, which is favorable for better completing the wiring; the wires are connected and bound in sequence from back to front, so that the wires are convenient to manage, and the cables of the subsequent single branch circuit are convenient to disassemble, assemble and replace.

The foregoing is a further detailed description of the utility model in connection with specific/preferred embodiments and is not intended to limit the utility model to the specific embodiments described. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. An insert frame, comprising:

the computer case comprises a plurality of plates which enclose a storage area;

the storage areas comprise a first storage area, a second storage area, a third storage area and a fourth storage area;

the plurality of jointing clamps are arranged into two rows of jointing clamp groups;

the plurality of distribution air switches are arranged into two rows of distribution air switch groups;

the two rows of wiring clamp groups and the two rows of distribution air switch groups are distributed in the first storage area in a staggered mode;

the monitoring module and the user interface board are arranged in the second storage area;

a plurality of photovoltaic modules arranged within the third storage area;

and the photovoltaic input assemblies are arranged in the fourth storage area.

2. The frame of claim 1, wherein the sheet material comprises a top sheet, a bottom sheet, side sheets;

the top plate and the bottom plate are oppositely arranged, the top plate is fixed at the top end of the side plate, and the bottom plate is fixed at the bottom end of the side plate;

the side plates comprise a first side plate, a second side plate and a third side plate;

the first side plate and the third side plate are arranged oppositely, and the second side plate is connected with the first side plate and the third side plate.

3. The frame of claim 2, wherein the set of terminal clips includes a first set of terminal clips and a second set of terminal clips;

the first wiring clamp group is fixedly connected to the second wiring clamp group;

one end of the second wiring clamp group is fixedly connected to the first side plate, and the other end of the second wiring clamp group is fixedly connected to the third side plate;

one end of the distribution air switch group is fixedly connected to the first side plate, and the other end of the distribution air switch group is fixedly connected to the third side plate.

4. The bezel of claim 3, wherein the set of distribution air switches comprises a first set of distribution air switches and a second set of distribution air switches;

the first wiring clamp group, the second wiring clamp group, the first distribution air switch group and the second distribution air switch group are arranged in parallel.

5. The insert frame of claim 4,

the distance from the second side plate to the first wiring clamp group is smaller than the distance from the second side plate to the second wiring clamp group;

the distance from the second side plate to the second terminal clamp group is smaller than the distance from the second side plate to the first distribution air switch group;

the distance from the second side plate to the first distribution air switch group is smaller than the distance from the second side plate to the second distribution air switch group;

the distance from the top plate to the first wiring clamp group is smaller than the distance from the top plate to the second wiring clamp group;

the distance from the top plate to the second terminal clamp group is smaller than the distance from the top plate to the second distribution air switch group;

the distance from the top plate to the second distribution air switch group is smaller than the distance from the top plate to the first distribution air switch group.

6. The insert frame of claim 4, wherein the top plate is provided with a first slot-shaped hole, a second slot-shaped hole, a third slot-shaped hole and a fourth slot-shaped hole for the entry and exit of cables;

the first slotted hole is used for passing in and out a first cable; the second slotted hole is used for passing in and out a second cable; the third groove-shaped hole is used for passing in and out a third cable; the fourth slotted hole is used for passing in and out a fourth cable;

the first cable is a cable connected to the first set of terminal blocks; the second cable is a cable connected to the second set of terminal blocks; the third cable is a cable connected to the first distribution air switch group; the fourth cable is a cable connected to the second distribution air switch group.

7. The bezel of any one of claims 1 to 6, wherein the photovoltaic input assembly comprises a photovoltaic inlet terminal, an air switch, a lightning protector, and a fixture;

the photovoltaic incoming line terminal, the air switch and the lightning protector are integrally arranged on the fixing piece;

the air switch and the lightning protection device are horizontally arranged on the fixing piece.

8. The frame of claim 7, wherein the fastener includes a fastener body, the fastener body being a rectangular plate;

a side edge extends from one of the short edges of the fixing piece body in a direction perpendicular to the fixing piece body, and the side edge is provided with a pulling hole;

the photovoltaic input assembly is installed in the fourth storage area in a dragging mode through the fixing piece.

9. The bezel of claim 2, wherein the first storage area is provided with a panel disposed opposite the second side panel;

the first side edge of the panel is hinged to the side edge of the first side plate;

and a screw capable of being screwed is fixed on a second side edge opposite to the first side edge of the panel, and the screw is used for being fixedly connected with the case.

10. The frame of claim 9, wherein the faceplate further defines a viewing window for viewing the status of the distribution air switch.