CN111244781B - Switch cabinet and method for assembling switch cabinet - Google Patents

Abstract

The invention relates to a switchgear cabinet and a method for assembling a switchgear cabinet, the switchgear cabinet comprising a first functional compartment and a second functional compartment, said first functional compartment and said second functional compartment being adjacent, further comprising: the first functional compartment has at least one guide plate on a first side, which extends in a direction away from the first side, and which abuts against the second functional compartment.

Description

Switch cabinet and method for assembling switch cabinet

Technical Field

The invention relates to the field of power systems, in particular to a switch cabinet and a method for assembling the switch cabinet.

Background

Along with the progress of the manufacturing process of the power equipment, the power supply quality of the power equipment is more and more stable, the automation degree of the power industry is also higher and more, and a plurality of convenient services can be provided for people. The medium-voltage switch cabinet is taken as one of power equipment and is widely applied to distribution and transformation in industries such as power plants, transformer substations, industrial and mining enterprises, railway transportation, high-rise buildings and the like. The voltage class of the medium-voltage switch cabinet is at least kilovolt.

In the prior art, when the medium-voltage switch cabinet is produced and assembled, the whole cabinet body of the medium-voltage switch cabinet is usually assembled, and various functional components such as a contact system, a cable or a valve are installed in the medium-voltage switch cabinet. In the process, many times, an installer needs to enter the cabinet body, after one part is installed, the installer moves out of the switch cabinet to take another part and then enters the cabinet body for installation, and the process not only enables the working strength of operators to be large, but also is low in efficiency.

The existing solutions are to improve the production efficiency of products and reduce the labor intensity of operators by optimizing the parts of the shell of the medium-voltage switch cabinet and simplifying the lap joint mode or by means of a fixture.

Disclosure of Invention

In view of this, the invention proposes a switchgear cabinet comprising a first functional compartment and a second functional compartment, said first functional compartment and said second functional compartment being adjacent, comprising:

the first functional compartment has at least one guide plate on a first side, which extends in a direction away from the first side, and which abuts against the second functional compartment.

According to the invention, the guide plate is arranged on the first functional chamber, so that the first functional chamber and the second functional chamber can play a role in guiding when being combined and fixed, the combination and the fixation are labor-saving, and the relative position between the first functional chamber and the second functional chamber is accurate.

According to the switch cabinet as described above, optionally, each of the guide plates is located inside the second functional compartment. Therefore, the blocking of the space in the cabinet body can be avoided as much as possible, the protrusions on the outer side of the cabinet body can be reduced, and the whole surface of the cabinet body is kept smooth.

According to the switch cabinet described above, optionally, the guide plates have two, and are distributed on two sides of the first side. This can make the positioning more accurate.

According to the switch cabinet described above, optionally, the first functional compartment has a frame, and the guide plate is located on the frame. Therefore, the guide plate is firm and can be close to the outer side of the cabinet body as much as possible, so that the space inside the cabinet body is prevented from being blocked.

According to the switch cabinet described above, optionally, the guide plate is perpendicular to a plane formed by the frame at the first side.

According to the switch cabinet as described above, optionally, the first functional chamber has a first side plate and a second side plate, the side plates and the second side plate are disposed opposite to each other and are adjacent to the first side plate, the second functional chamber has a third side plate and a fourth side plate, the third side plate and the first side plate are on the same side and flush, the second side plate and the fourth side plate are on the same side and flush, and the two guide plates are respectively located on the inner sides of the third side plate and the fourth side plate. After the first functional chamber and the second functional chamber are combined and fixed, the side part of the whole cabinet body is flush, the shape is regular, and occupied space is saved as much as possible.

According to the switch cabinet as described above, optionally, one end of each of the guide plates extends to the bottom of the first functional chamber, and the other end of the guide plate extends to the top of the first functional chamber. Thus, the fixing member can have enough space to fix the first functional chamber and the second functional chamber, and the first functional chamber and the second functional chamber can be fixed more firmly.

According to the switch cabinet described above, optionally, each of the guide plates includes:

a body secured to the frame;

the bending part is connected to the body, and the bending part forms an obtuse angle with the body and bends inwards.

The bending part can enable the second functional chamber to smoothly move along the body 1 to the first functional chamber when contacting the guide plate.

According to the switch cabinet as described above, optionally, an arc-shaped transition part is provided between the bending part and the body. Thus friction can be reduced, and the installation is more labor-saving.

According to the switch cabinet described above, optionally, the body comprises:

a fixing plate fixed to the frame;

and the extension plate is vertically connected with the fixed plate and extends in a direction away from the first side surface.

According to the switch cabinet as described above, optionally, further comprising:

the fixing pieces penetrate through the guide plate and the second functional chamber, so that the first functional chamber and the second functional chamber are mutually fixed.

According to the switch cabinet as described above, optionally, the first functional chamber and the second functional chamber are each cubes, the first functional chamber includes one bus bar chamber and one cable chamber, and the second functional chamber includes one high voltage chamber.

According to the switch cabinet as described above, optionally, a low-pressure chamber is further included, the low-pressure chamber is located on top of at least a portion of the second functional chamber, and the low-pressure chamber is separated from the first functional chamber by the second functional chamber.

According to the switch cabinet as described above, optionally, the second functional chamber is detachably assembled between the first functional chambers.

According to the switch cabinet as described above, optionally, the first functional chamber, the second functional chamber and the low-pressure chamber are detachably assembled therebetween.

According to the switch cabinet as described above, optionally, before the first functional chamber and the second functional chamber are assembled, at least part of the first functional component is installed in the first functional chamber, and at least part of the second functional component is installed in the second functional chamber.

According to the switch cabinet described above, optionally, the two guide plates have a first interval between the outer sides of the two guide plates, a second interval between the inner sides of one third side plate and one fourth side plate of the second functional chamber, the first interval being equal to the second interval, and the third side plate and the fourth side plate can slide along the two guide plates respectively during the combined installation of the first functional chamber and the second functional chamber, so that the second functional chamber can approach the first functional chamber along the guide plates.

The invention also provides a method of assembling a switchgear comprising:

each first functional component is arranged in the frame of one first functional chamber, and two guide plates are arranged on the frame positioned on one first side surface, distributed on two sides of the first side surface and extend in a direction away from the first side surface;

mounting each second functional component in the frame of one second functional compartment;

and in the process of combining and installing the second functional chamber and the first functional chamber, the second functional chamber is enabled to approach the first functional chamber along the guide plates, and after the combination and installation are completed, each guide plate is positioned at the inner side of the second functional chamber.

The first functional chamber and the second functional chamber are combined and fixed in a pre-installation mode, so that manpower can be saved, and the efficiency of assembling the switch cabinet is improved.

According to the method as described above, optionally, before the second functional compartment is assembled with the first functional compartment, at least one of the following operations is further included:

installing at least one side plate or partition in the first functional compartment;

at least one side plate or partition is installed in the second functional compartment.

According to the method described above, optionally, the first functional chamber includes a bus bar chamber and a cable chamber from top to bottom, and installing each first functional component in the frame of one first functional chamber includes the following steps in order:

mounting a lightning arrester on a bottom plate of the frame of the cable chamber;

a current transformer is arranged at the bottom of the frame of the cable chamber;

a wall bushing is arranged on one side wall of the bus chamber;

installing a contact system in the frame of the bus bar compartment;

a partition plate is respectively installed on the frame of the cable chamber and the frame of the bus bar chamber.

Drawings

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:

fig. 1 is an exploded schematic view of the functional compartments of a switchgear according to an embodiment of the present invention.

Fig. 2 is a combined schematic diagram of the functional compartments of the switchgear of fig. 1.

Fig. 3 is an exploded view of a first functional compartment and a second functional compartment according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a combination of the first functional chamber and the second functional chamber of fig. 3.

Fig. 5 to 7 are schematic views illustrating an installation process of the first functional compartment according to an embodiment of the present invention.

Fig. 8 is an enlarged partial view of another angle of the guide plate according to an embodiment of the present invention.

Reference numerals:

11-first functional Chamber

111-frame

1111-column

112-first side plate

113-second side plate

114-separator

12-second functional Chamber

121-third side plate

122-fourth side plate

123-upper extension

13-guide plate

131-body

1311-fixed plate

1312-extending plate

132-bending part

14-fastener

15-busbar chamber

151-contact system

152-wall bushing

16-cable chamber

161-lightning arrester

162-current transformer

17-high pressure chamber

171 shutter

18-Low pressure Chamber

S-first side

L1-first interval

L2-second interval

Detailed Description

The present invention will be further described in detail with reference to the following examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.

The inventor considers the problems of high labor intensity and low installation efficiency of operators caused by the installation process in the prior art, and proposes a method for modularly assembling a switch cabinet. The method is characterized in that each functional chamber is firstly installed, and then each functional chamber is assembled. Therefore, the cabinet can be installed outside the operator cabinet, the labor intensity of the operator is reduced, the process operation can be realized, and the efficiency is improved. In order to realize this modular way of assembling the switchgear cabinet, it is necessary to consider not only how to divide, design and arrange the functional compartments, but also how to assemble together the functional compartments for the completion of the installation. It should be noted that, for a medium voltage switchgear, the volumes of the respective functional chambers are large, and for such large functional chambers, it is necessary to perform the combination and fixation and to satisfy the requirements of the switchgear after the combination and fixation are completed. The modular switchgear cabinet is also referred to herein as a "splice cabinet," i.e., a splice of modular functional compartments together.

The invention provides a switch cabinet. The switch cabinet comprises a first functional compartment 11 and a second functional compartment 12, the first functional compartment 11 and the second functional compartment 12 being adjacent, and at least one guide plate 13.

As shown in fig. 1, an exploded view of each functional compartment is shown. As shown in fig. 2, the structure of each functional chamber after being assembled and fixed is schematically shown. Shown in fig. 1 and 2 are 3 functional compartments, and shown in fig. 3 and 4 are two functional compartments. The first functional chambers 11 are already provided with first functional components, the second functional chambers 12 are also already provided with second functional components, and the first functional chambers 11 and the second functional chambers 12 need to be combined and fixed. It should be noted that the above-mentioned first and second functional components may be installed according to actual needs, that is, the above-mentioned expression does not mean that the first and second functional chambers 11 and 12 are to completely complete the installation of the respective functional components, and that some functional components are more convenient to install after being combined, and may not be installed before being combined. As shown in fig. 1 and 2, each functional chamber may be substantially cubic for convenience in subsequent assembly, but may be of other shapes, and may be specifically set according to actual needs. Of course, at least part of the side plates and the partition plates may be pre-installed in the first functional chamber 11 and the second functional chamber 12, so as to avoid the invariance of the installation after the subsequent combination.

The guide plate 13 is located on a first side S of the first functional compartment 11, which first side S refers to the direction. The first side S may have mounted thereon a spacer 114, as shown in fig. 7. The guide plate 13 extends in a direction away from the first side S. The guide plate 13 can perform a guiding function during the assembly of the first functional compartment 11 and the second functional compartment 12. For example, when the second functional chamber 12 and the first functional chamber 11 are close to each other in the process of assembly, the guide plate 13 can be moved, so that the first functional chamber 11 and the second functional chamber 12 can be conveniently attached together and are not easy to shift. Abutment is herein understood to mean close together. As an exemplary illustration, the abutment may be such that there is no gap between the guide plate 13 and the second functional chamber 12, and the two are closely abutted together, i.e., when the first functional chamber 11 and the second functional chamber 12 are close to each other, the second functional chamber 12 is abutted against the guide plate 13 and approaches the first functional chamber 11, so that the moving direction of the moved functional chamber is restricted. As another example, the guide plate 13 may be close to the second functional chamber 12 with a certain gap therebetween, but the gap is particularly small, so that when the first functional chamber 11 and the second functional chamber 12 are close to each other, the friction between the second functional chamber 12 and the guide plate 13 is small, thereby facilitating the movement. The above modes fall within the protection scope of the invention. More specifically, the guide plate 13 abuts against side plates of the second functional chamber 12 in the extending direction of the guide plate 13, such as the third side plate 121 and the fourth side plate 122 shown in fig. 1 and 2.

More specifically, each guide plate 13 is located at the inner side of the second functional chamber 12, so that not only blocking of the space in the cabinet body can be avoided as much as possible, but also protrusions on the outer side of the cabinet body can be reduced, and the whole surface of the cabinet body is kept smooth. As can be seen from fig. 2 and 4, the guide plate 13 is not visible on the outside of the cabinet after the first functional compartment 11 and the second functional compartment 12 have been combined. In addition, the guide plate 13 not only can play a guiding role, but also can penetrate the guide plate 13 and the second functional chamber 12 by adopting a plurality of fixing pieces 14 after the assembly positions of the first functional chamber 11 and the second functional chamber 12 are fixed, so that the first functional chamber 11 and the second functional chamber 12 can be mutually fixed, and the assembly is completed. The fixing member 14 is, for example, a Blind rivet (Blind Rivets), and can be fixed by a hand riveter, so that the efficiency is high.

The above only describes the case where the guide plates 13 are provided on the first functional compartments 11, and specifically, the guide plates 13 may be provided on the corresponding functional compartments according to actual needs.

According to the invention, the guide plate 13 is arranged on the first functional chamber 11, so that the first functional chamber 11 and the second functional chamber 12 can play a role in guiding when being combined and fixed, the combination and the fixation can be more labor-saving, and the relative position between the first functional chamber 11 and the second functional chamber 12 can be more accurate.

As shown in fig. 1, 3 and 5 to 7, the guide plates 13 may be two, and are disposed on both sides of the first side S. This can make the positioning more accurate. As an exemplary illustration, the first functional compartment 11 has a frame 111, and the guide plate 13 is located on the frame 111 of the first side S, in particular perpendicularly to the plane formed by the frame 111 on the first side S. As shown in fig. 1, the frame 111 is a cubic frame having two posts 1111 on a first side S, and a plane formed by the two posts 1111 can be regarded as a plane formed by the frame 111 on the first side S. One of the uprights 1111 is identified in fig. 3, the other upright 1111 being on the other side of the first side S of the upright 1111. The guide plate 13 is fixed on the frame 111, so that the guide plate 13 is firm and can be close to the outer side of the cabinet body as much as possible, and the space inside the cabinet body is prevented from being blocked. Of course, if the partition 114 is already installed on the frame 111, the guide plate 13 may be fixed to the partition 114, and the specific implementation is not limited as long as the guide plate 13 is provided on the first side S.

The first functional chamber 11 has a first side plate 112 and a second side plate 113, the first side plate 112 and the second side plate 113 are disposed opposite to each other and are adjacent to the first side surface S, the second functional chamber 12 has a third side plate 121 and a fourth side plate 122, the third side plate 121 and the first side plate 112 are on the same side and flush, the second side plate 113 and the fourth side plate 122 are on the same side and flush, and the two guide plates 13 are respectively located on the inner sides of the third side plate 121 and the fourth side plate 122. After the first functional compartment 11 and the second functional compartment 12 are assembled and fixed, the first side plate 112 and the second side plate 113 are flush, and the second side plate 113 and the fourth side plate 122 are flush. The first side plate 112 is at least partially located on the outer side of the adjacent guide plate 13, and correspondingly, the second side plate 113 is at least partially located on the outer side of the adjacent guide plate 13, so that after the first functional chamber 11 and the second functional chamber 12 are combined and fixed, the side part of the whole cabinet body is flush, the shape is regular, and occupied space is saved as much as possible. A plurality of fixing members 14 may be provided to penetrate the third side plate 121 and the corresponding guide plate 13, and the fourth side plate 122 and the corresponding guide plate 13, so that the first functional compartment 11 and the second functional compartment 12 are fixed together.

As a schematic illustration, in the case where there are two guide plates 13, the distance between the outer sides of the two guide plates 13 is a first interval L1, the distance between the inner sides of one third side plate 121 and one fourth side plate 122 of the second functional chamber 12 is a second interval L2, the first interval is equal to the second interval, and during the combined installation of the first functional chamber 11 and the second functional chamber 12, the third side plate 121 and the fourth side plate 122 can slide along the two guide plates 13, respectively, so that the second functional chamber 12 can approach the first functional chamber 11 along the guide plates 13. In this way, the guide plate 13 can be made to abut against the third side plate 121 and the fourth side plate 122 as much as possible to avoid the space in the cabinet.

One end of each guide plate 13 extends to the bottom of the first functional compartment 11, and the other end of the guide plate 13 extends to the top of the first functional compartment 11. As shown in fig. 1, 3 and 5 to 7, the length of the guide plate 13 is equal to the length of the first functional chamber 11. In this way, the fixing member 14 can be made to have a sufficient space to fix the first functional compartment 11 and the second functional compartment 12, and can be made to fix between the first functional compartment 11 and the second functional compartment 12 more firmly.

Alternatively, each guide plate 13 includes a body 131 and a bending portion 132, where the body 131 is fixed to the frame 111 of the first functional chamber 11, and the bending portion 132 is connected to the body 131, and both may be integrally formed. As shown in fig. 8, the bending portion 132 is bent inward at an obtuse angle α to the main body 131, for example, in the direction of the other guide plate 13. Fig. 8 is an enlarged schematic view of the portion a of fig. 5, which is adjusted in direction for the portion a of fig. 5 to be rotated counterclockwise by about 90 degrees in order to more clearly show the bent portion. The bending part 132 bends inwards, so that the second functional chamber 12 can smoothly move along the main body 131 to the first functional chamber 11 when contacting the guide plate 13. A smooth transition part can be arranged between the bending part 132 and the body 131, so that friction can be reduced, and the installation is more labor-saving.

Alternatively, the body 131 includes a fixing plate 1311 and an extension plate 1312, the fixing plate 1311 is fixed to the frame 111, and the extension plate 1312 is vertically connected to the fixing plate 1311 and extends in a direction away from the first side S. I.e., the body 131 is in an "L" shape, which facilitates the fixation of the guide plate 13 to the frame 111. The fixing plate 1311 and the extension plate 1312 may be integrally formed therebetween.

In the present invention, the first functional compartment 11 and the second functional compartment 12 may each be a cube, the first functional compartment 11 including a bus bar compartment 15 and a cable compartment 16, and the second functional compartment 12 including a high-voltage compartment 17. The first functional compartment 11 and the second functional compartment 12 need to be assembled and fixed, e.g. detachably assembled, with each other. In this way, the pre-installation of the first functional compartment 11 and the second functional compartment 12 can be completed. As shown in fig. 3, the first functional compartment 11 may have the contact system 151 pre-installed therein, and as can be seen in fig. 3, the installation of the contact system 151 may be accomplished without the worker having to bend down into the cabinet. The second functional compartment 12 may be previously installed with the shutter 171, and as can also be seen in fig. 3, a worker can complete the installation of the shutter 171 outside the cabinet. The mode of the operation outside the cabinet can reduce the labor intensity of operators and improve the working efficiency of the operators. Of course, the switch cabinet may also include a low pressure chamber 18, the low pressure chamber 18 also being removably assembled with the second functional chamber 12. As shown in fig. 1 and 2, the low pressure chamber 18 is located on top of at least a portion of the second functional chamber 12, and the low pressure chamber 18 is separated from the first functional chamber 11 by the second functional chamber 12. Specifically, the top of the second functional compartment 12 has an upper extension 123, which upper extension 123 isolates the low pressure chamber 18 from the first functional compartment 11.

Based on the above description of each example, the invention also provides a method for assembling the switch cabinet, which comprises the steps of pre-assembling each functional chamber, and then combining and fixing the pre-assembled functional chambers together.

As an exemplary illustration, the method of assembling a switchgear cabinet comprises the steps of:

in step 601, each first functional component is mounted in the frame 111 of one first functional compartment 11, and the frame 111 located on one first side surface S has at least one guide plate 13, and the guide plate 13 extends in a direction away from the first side surface S.

In step 602, each second functional component is mounted in the frame 111 of one second functional compartment 12.

In step 603, during the combined installation of the second functional chamber 12 and the first functional chamber 11, the second functional chamber 12 is moved closer to the first functional chamber 11 along the guide plates 13, and each guide plate 13 is located inside the second functional chamber 12.

There is no sequence between step 601 and step 602, and the operations may be performed simultaneously. In step 603, the second functional chamber 12 may be moved toward the first functional chamber 11, the second functional chamber 12 may be moved to approach the first functional chamber 11, or the first functional chamber 11 may be moved toward the second functional chamber 12 to approach the second functional chamber 12, which is not particularly limited.

Wherein, each first functional part and second functional part can be installed according to actual need to reach laborsaving and improve efficient purpose. That is, the first functional components to be mounted in the first functional chamber 11 are not necessarily all functional components, and the second functional components to be mounted in the second functional chamber 12 are not necessarily all functional components. The functional components can be installed in one production line. The structure of the guide plate 13 may be the same as that described above, and will not be described again.

The second functional chamber 12 and the first functional chamber 11 can be pushed by operators or driven or pushed by tools, so that the second functional chamber 12 can be close to the first functional chamber 11 along the guide plate 13, the second functional chamber 12 can be smoothly attached to the first functional chamber 11, and due to the guide plate 13, the combined position is accurate, and dislocation is not easy to occur in the process of installing the fixing piece 14.

The first functional chamber 11 and the second functional chamber 12 are combined and fixed in a pre-installation mode, so that manpower can be saved, and the efficiency of assembling the switch cabinet is improved.

Optionally, before pushing the second functional compartment 12 towards the first functional compartment 11, at least one of the following operations is included:

operation one: at least one side plate or partition 114 is installed in the first functional compartment 11;

and (2) operation II: at least one side plate or partition 114 is mounted in the second functional compartment 12.

The installation operation of some side plates or partition plates 114 is finished before the combination, so that the installation operation is convenient, and the labor intensity of operators can be reduced. As shown in fig. 7, the first side S is provided with the partition 114.

Alternatively, the frame 111 of the first functional chamber 11 includes a bus bar chamber 15 frame 111 and a cable chamber 16 frame 111 from top to bottom, and the mounting of each first functional component in the frame 111 of one first functional chamber 11 may specifically include the following steps:

as shown in fig. 5, a lightning arrester 161 is mounted on the bottom plate of the frame 111 of the cable chamber 16;

as shown in fig. 6, a current transformer 162 is installed on top of the frame 111 of the cable chamber 16;

as shown in fig. 6, a wall bushing 152 is installed on the side wall of the bus bar compartment 15;

as shown in fig. 1 and 3, a contact system 151 is installed in the frame 111 of the bus bar compartment 15;

as shown in fig. 7, a partition 114 is attached to the frame 111 of the cable chamber 16 and the frame 111 of the bus bar chamber 15, respectively.

The cable chamber 16 and the bus bar chamber 15 may be separated by a spacer on which the current transformer 162 is mounted. The above mounting sequence is adopted to facilitate the mounting of each functional component and improve the efficiency. Of course, the order of mounting the above devices may be selected according to actual needs, and is not limited herein. As can be seen in fig. 7, two spacers 114 sandwich a mounting plate of a contact system 151.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (17)

1. Switch cabinet comprising a first functional compartment (11) and a second functional compartment (12), said first functional compartment (11) and said second functional compartment (12) being adjacent, characterized in that it comprises:

-one first side (S) of the first functional chamber (11) has at least one guide plate (13), the guide plate (13) extending away from the first side (S), the guide plate (13) being in abutment with the second functional chamber (12);

each guide plate (13) is positioned on the inner side of the second functional chamber (12);

the guide plates (13) are two and distributed on two sides of the first side surface (S);

the first functional chamber (11) is provided with a first side plate (112) and a second side plate (113), the first side plate (112) and the second side plate (113) are oppositely arranged and are adjacent to the first side surface (S), the second functional chamber (12) is provided with a third side plate (121) and a fourth side plate (122), the third side plate (121) and the first side plate (112) are on the same side and are flush, the second side plate (113) and the fourth side plate (122) are on the same side and are flush, and the two guide plates (13) are respectively positioned on the inner sides of the third side plate (121) and the fourth side plate (122).

2. The switchgear according to claim 1, characterized in that the first functional compartment (11) has a frame (111), the guide plate (13) being located on the frame (111).

3. The switchgear according to claim 2, characterized in that the said guide plate (13) is perpendicular to the plane constituted by the said frame (111) at the said first side (S).

4. The switchgear according to claim 1, characterized in that one end of each of the said guide plates (13) extends to the bottom of the said first functional compartment (11), the other end of the said guide plate (13) extending to the top of the said first functional compartment (11).

5. The switchgear according to claim 2, characterized in that each of said guide plates (13) comprises:

-a body (131), said body (131) being fixed to said frame (111);

the bending part (132), the bending part (132) is connected to the body (131), and the bending part (132) forms an obtuse angle with the body (131) and bends inwards.

6. The switchgear according to claim 5, characterized in that between the bending part (132) and the body (131) there is an arc-shaped transition.

7. The switchgear according to claim 5, characterized in that said body (131) comprises:

-a fixing plate (1311), said fixing plate (1311) being fixed to said frame (111);

an extension plate (1312), the extension plate (1312) is vertically connected to the fixed plate (1311) and extends in a direction away from the first side (S).

8. The switchgear as claimed in claim 1, further comprising:

the fixing pieces (14) penetrate through the guide plate (13) and the second functional chamber (12) so that the first functional chamber (11) and the second functional chamber (12) are mutually fixed.

9. The switchgear according to claim 1, characterized in that the first functional compartment (11) and the second functional compartment (12) are cubes, the first functional compartment (11) comprising one busbar compartment (15) and one cable compartment (16), the second functional compartment (12) comprising one high-voltage compartment (17).

10. The switchgear according to claim 9, characterized in that it further comprises a low-pressure chamber (18), said low-pressure chamber (18) being located on top of at least a portion of said second functional chamber (12), and said low-pressure chamber (18) being separated from said first functional chamber (11) by said second functional chamber (12).

11. The switchgear according to claim 9, characterized in that the first functional compartment (11) and the second functional compartment (12) are detachably assembled.

12. The switchgear according to claim 10, characterized in that the first functional compartment (11), the second functional compartment (12) and the low-pressure compartment (18) are detachably assembled between them.

13. Switch cabinet according to claim 11, characterized in that before the first functional compartment (11) and the second functional compartment (12) are assembled, at least part of the first functional component is installed in the first functional compartment (11) and at least part of the second functional component is installed in the second functional compartment (12).

14. The switch cabinet according to any one of claims 1-13, characterized in that the guide plates (13) are two, the distance between the outer sides of the two guide plates (13) is a first spacing (L1), the distance between the inner sides of one third side plate (121) and one fourth side plate (122) of the second functional chamber (12) is a second spacing (L2), the first spacing (L1) is equal to the second spacing (L2), and the third side plate (121) and the fourth side plate (122) are respectively slidable along the two guide plates (13) during the combined installation of the first functional chamber (11) and the second functional chamber (12) so that the second functional chamber (12) can be moved closer to the first functional chamber (11) along the guide plates (13).

15. A method of assembling a switchgear comprising:

-mounting first functional components in a frame (111) of a first functional compartment (11), said frame (111) being located on a first side (S) with two guide plates (13), said guide plates (13) being distributed on both sides of the first side (S) and extending in a direction away from said first side (S);

-mounting second functional components in a frame (111) of a second functional compartment (12);

in the process of combining and installing the second functional chamber (12) and the first functional chamber (11), the second functional chamber (12) is made to approach the first functional chamber (11) along the guide plates (13), and after the combination and installation are completed, each guide plate (13) is positioned on the inner side of the second functional chamber (12).

16. The method according to claim 15, characterized in that before the second functional compartment (12) is assembled with the first functional compartment (11), it further comprises at least one of the following operations:

-installing at least one side plate or partition (114) in said first functional compartment (11);

at least one side plate or partition is installed in the second functional compartment (12).

17. The method according to claim 15, wherein the first functional compartment (11) comprises a busbar compartment (15) and a cable compartment (16) from top to bottom, and wherein the mounting of the first functional components in the frame (111) of one first functional compartment (11) comprises the following steps in sequence:

-mounting a lightning arrester (161) on a floor of a frame (111) of said cable chamber (16);

a current transformer (162) is arranged at the bottom of the frame (111) of the cable chamber (16);

a wall bushing (152) is arranged on one side wall of the bus bar chamber (15);

-mounting a contact system (151) in a frame (111) of the busbar chamber (15);

a partition plate (114) is respectively mounted on the frame (111) of the cable chamber (16) and the frame (111) of the bus bar chamber (15).