Power distribution cabinet preassembled section bar module

The modular design of the low-voltage drawer-type switchgear frame, utilizing the combination of uprights, side beams, and connecting frames, enables efficient assembly, solving the problems of low assembly efficiency and high logistics costs, and meeting the demand for rapid delivery.

CN224153801UActive Publication Date: 2026-04-21SHANDONG CHUNXU ELECTRICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG CHUNXU ELECTRICAL CO LTD
Filing Date
2025-03-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing low-voltage drawer-type switchgear has low frame assembly efficiency, cannot meet customers' needs for rapid delivery, and has high logistics costs.

Method used

The low-voltage drawer-type switch cabinet adopts a modular design, which decomposes the frame into several profile modules, including uprights, side beams, connecting columns, four-sided connecting frames and triangular connecting frames. These modules are fixed and installed with bolts and nuts to achieve the assembly of pre-assembled profile modules.

Benefits of technology

It improved assembly efficiency, shortened delivery time, reduced logistics costs, and met customers' needs for fast delivery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a power distribution cabinet preassembled section bar module which comprises two stand column vertical beams, two side cross beams, a connecting stand column, a four-side connecting frame and a triangular connecting frame, and the stand column vertical beams, the side cross beams, the connecting stand column, the four-side connecting frame and the triangular connecting frame are all provided with a plurality of connecting through holes. The two ends of the side cross beams are fixedly connected with the stand column vertical beams through four-face connecting frames and fixedly installed through bolts and nuts, the four-face connecting frames are located in the side cross beams, one side cross beam is located at the bottom ends of the two stand column vertical beams, and the other side cross beam is close to the top ends of the two stand column vertical beams. The connecting stand column is located between the two stand column vertical beams, and the two ends of the connecting stand column are fixedly connected through a triangular connecting frame and fixedly installed through bolts and nuts. According to the utility model, the section bar can be prepared in advance, the power distribution cabinet preassembled section bar module is firstly assembled, and then the power distribution cabinet preassembled section bar module and other parts are assembled into the low-voltage drawer type switch cabinet, so that the efficiency is improved, the delivery time is greatly shortened, and the cost is saved.
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Description

Technical Field

[0001] This utility model relates to the field of low-voltage power distribution cabinet technology, specifically to a pre-installed profile module for a power distribution cabinet. Background Technology

[0002] With market development, low-voltage drawer-type switchgear has been widely promoted and applied. However, low-voltage drawer-type switchgear is assembled using columns and beams of various specifications.

[0003] The existing assembly method for low-voltage drawer-type switchgear frames requires individual profiles and parts to be assembled one by one for each project. This assembly efficiency is slow, and each order requires a long delivery cycle, which cannot meet customers' needs for rapid delivery, resulting in the loss of some customers. Furthermore, purchasing stocked profiles in multiple batches significantly increases logistics costs.

[0004] To address the problems existing in the above-mentioned technologies, a modular design approach is used to decompose the frame of the low-voltage drawer-type switchgear into several profile modules, and then these profile modules are assembled to improve efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pre-assembled profile module for a power distribution cabinet. The profile can be prepared in advance and assembled into a pre-assembled profile module for the power distribution cabinet. Then, the pre-assembled profile module is assembled with other components to form a low-voltage drawer-type switch cabinet, which improves efficiency, greatly shortens delivery time, and saves costs.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] A pre-assembled profile module for a power distribution cabinet is characterized by comprising two vertical columns, two side beams, a connecting column, a four-sided connecting frame, and a triangular connecting frame. The vertical columns, the side beams, the connecting column, the four-sided connecting frame, and the triangular connecting frame are all provided with several through holes for mounting bolts.

[0008] The two ends of the side crossbeam are fixedly connected to the column vertical beam through a four-sided connecting frame and fixedly installed with bolts and nuts. The four-sided connecting frame is located inside the side crossbeam. One side crossbeam is located at the bottom end of the two column vertical beams, and the other side crossbeam is close to the top end of the two column vertical beams.

[0009] The connecting column is located between the two column beams, and the two ends of the connecting column are fixedly connected by a triangular connecting bracket and fixedly installed with bolts and nuts.

[0010] Preferably, the four-sided connecting frame includes a main upright plate, a top plate fixed to the upper end of the main upright plate, a bottom plate fixed to the lower end of the main upright plate, and side upright plates fixed to the side ends of the main upright plate. The top plate, the bottom plate, and the side upright plates are all perpendicularly connected to the main upright plate and extend protruding from the same side of the main upright plate.

[0011] The main upright plate, the top plate, the bottom plate, and the side upright plates are all provided with a plurality of the aforementioned connecting through holes.

[0012] Preferably, the triangular connecting frame is also fixedly installed between the two ends of the upper side beam and the vertical beam of the column, and the triangular connecting frame is located below the upper side beam.

[0013] Preferably, the side crossbeam includes a back plate, a first side plate and a second side plate fixedly connected to both sides of the back plate, a first front plate and a second front plate opposite to the back plate, the first front plate and the second front plate are coplanar and have a gap between them, the first front plate is connected to the first side plate, the second front plate is connected to the second side plate, and a plurality of connection holes are provided on the first side plate, the second side plate, the first front plate and the second front plate.

[0014] Preferably, the column vertical beam includes a first vertical plate, a first side vertical plate and a second side vertical plate fixedly connected to both sides of the first vertical plate, a second vertical plate and a third vertical plate opposite to the first vertical plate, wherein the second vertical plate and the third vertical plate are coplanar and spaced apart, the second vertical plate is connected to the first side vertical plate, and the third vertical plate is connected to the second side vertical plate.

[0015] The first upright plate, the first side upright plate, the second upright plate, and the third upright plate are all provided with a plurality of the aforementioned connecting holes.

[0016] Preferably, the first upright plate has a recessed area in the middle, and the connecting hole on the first upright plate is disposed in the recessed area.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Compared to low-voltage drawer-type switchgear assembled from pre-assembled profile modules of the distribution cabinet, this utility model only adds four connecting frames, minimizing the cost of additional parts. The four connecting frames do not interfere with the assembly of the low-voltage drawer-type switchgear, and there is no need to disassemble them during assembly. This greatly improves assembly efficiency, significantly shortens delivery time, and saves logistics costs, resulting in overall cost savings for the low-voltage drawer-type switchgear.

[0019] In summary, the pre-assembled profile modules of this utility model can be pre-assembled and shipped. After receiving an order, these modules can be assembled into a low-voltage drawer-type switch cabinet, which greatly improves efficiency, shortens delivery time, and meets customers' needs for fast delivery. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the pre-installed profile module of the power distribution cabinet of this utility model;

[0021] Figure 2 yes Figure 1 Enlarged structural diagram at point B;

[0022] Figure 3 yes Figure 2 Schematic diagram of the cross section at the middle FF point;

[0023] Figure 4 yes Figure 1 A structural schematic diagram of the first side beam is omitted.

[0024] Figure 5 This is an enlarged structural diagram of the four-sided connecting frame;

[0025] Figure 6 This is a structural diagram of a distribution cabinet with pre-installed profile modules applied to a low-voltage drawer-type switchgear.

[0026] In the diagram: 11. First upright plate; 111. Recessed area; 12. First side upright plate; 13. Second side upright plate; 14. Second upright plate; 15. Third upright plate; 101. First column vertical beam; 102. Second column vertical beam; 21. Back plate; 22. First side plate; 23. Second side plate; 24. First front plate; 25. Second front plate; 201. First side crossbeam; 202. Second side crossbeam; A. Pre-installed profile module for distribution cabinet; 3. Connecting column; 4. Four-sided connecting frame; 401. Main upright plate; 402. Top plate; 403. Bottom plate; 404. Side upright plate; 5. Triangular connecting frame; 501. Horizontal plate; 502. Vertical plate; 503. Connecting side rib plate; 6. Middle bottom plate; 7. First bottom mounting plate; 8. Second bottom mounting plate; K. Connecting through hole; J. Spacing. Detailed Implementation

[0027] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of this utility model, but it is not intended to limit the scope of protection of the appended claims of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0029] Furthermore, although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used in this document do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0030] like Figure 1 The pre-assembled profile module A of the distribution cabinet shown includes two vertical columns, two side beams, a connecting column 3, a four-sided connecting frame 4, and a triangular connecting frame 5. The two vertical columns are the first vertical column 101 and the second vertical column 102, and the two side beams are the first side beam 201 and the second side beam 202. The vertical columns, side beams, connecting column 3, four-sided connecting frame 4, and triangular connecting frame 5 are all provided with several through holes K for mounting bolts.

[0031] The two ends of the side crossbeam are fixedly connected to the column vertical beams through the four-sided connecting frame 4 and are fixedly installed with bolts and nuts. The four-sided connecting frame 4 is located inside the side crossbeam. One side crossbeam is located at the bottom end of the two column vertical beams, and the other side crossbeam is close to the top end of the two column vertical beams. The connecting column 3 is located between the two column vertical beams, and the two ends of the connecting column are fixedly connected through the triangular connecting frame 5 and are fixedly installed with bolts and nuts.

[0032] The left end of the first side beam 201 and the first column beam 101 are fixedly connected by a four-sided connecting bracket 4 and are fixedly installed by bolts passing through the corresponding connecting through holes. The right end of the first side beam 201 and the second column beam 102 are fixedly connected by a four-sided connecting bracket 4 and are fixedly installed by bolts passing through the corresponding connecting through holes.

[0033] Triangular connecting brackets 5 are fixedly installed between the two ends of the upper side crossbeam and the vertical column beam. Specifically, a triangular connecting bracket 5 is fixed between the left end of the first side crossbeam 201 and the first vertical column beam 101, and a triangular connecting bracket 5 is fixed between the right end of the first side crossbeam 201 and the second vertical column beam 102. The triangular connecting brackets 5 are located below the first side crossbeam 201.

[0034] The left end of the second side beam 202 and the bottom end of the first column beam 101 are fixedly connected by a four-sided connecting bracket 4, and are fixedly installed by bolts passing through the corresponding connecting through holes. The right end of the second side beam 202 and the bottom end of the second column beam 102 are fixedly connected by a four-sided connecting bracket 4, and are fixedly installed by bolts passing through the corresponding connecting through holes.

[0035] The connecting column 3 is located between the first column vertical beam 101 and the second column vertical beam 102. The top end of the connecting column 3 is fixedly connected to the first side crossbeam 201 by two triangular connecting brackets 5, and is fixedly installed by bolts passing through the corresponding connecting through holes. At the same time, the bottom end of the connecting column 3 is fixedly connected to the second side crossbeam 202 by two triangular connecting brackets 5, and is fixedly installed by bolts passing through the corresponding connecting through holes.

[0036] like Figure 5 As shown, the four-sided connecting frame 4 includes a main upright plate 401, a top plate 402 fixed to the upper end of the main upright plate 401, a bottom plate 403 fixed to the lower end of the main upright plate 401, and a side upright plate 404 fixed to the side end of the main upright plate 401. The top plate 402, bottom plate 403, and side upright plate 404 are all vertically connected to the main upright plate 401 and extend protruding to the same side of the main upright plate 401. Several connecting through holes K are provided on the main upright plate 401, top plate 402, bottom plate 403, and side upright plate 404.

[0037] The side crossbeam includes a back plate 21, a first side plate 22 and a second side plate 23 fixedly connected to both sides of the back plate 21, and a first front plate 24 and a second front plate 25 opposite to the back plate 21. The first front plate 24 and the second front plate 25 are coplanar and have a gap J between them. The first front plate 24 is connected to the first side plate 22, and the second front plate 25 is connected to the second side plate 23. That is, the back plate 21, the first side plate 22, the second side plate 23, the first front plate 24 and the second front plate 25 form an open square tube. Several connecting holes K are provided on the first side plate 22, the second side plate 23, the first front plate 24 and the second front plate 25.

[0038] The column vertical beam includes a first vertical plate 11, a first side vertical plate 12 and a second side vertical plate 13 fixedly connected to both sides of the first vertical plate 11, a second vertical plate 14 and a third vertical plate 15 opposite to the first vertical plate 11. The second vertical plate 14 and the third vertical plate 15 are coplanar and have a gap J between them. The second vertical plate 14 is connected to the first side vertical plate 12, and the third vertical plate 15 is connected to the second side vertical plate 13. That is, the first vertical plate 11, the first side vertical plate 12, the second side vertical plate 13, the second vertical plate 14 and the third vertical plate 15 form an open square tube. The first vertical plate 11, the first side vertical plate 12, the second vertical plate 14 and the third vertical plate 15 are all provided with several connecting holes K.

[0039] In some embodiments, a recessed region 111 is provided in the middle of the first upright plate 11, and a connecting hole K on the first upright plate 11 is provided in the recessed region 111.

[0040] The triangular connecting frame 5 includes a horizontal plate 501, a vertical plate 502, and a connecting side rib plate 503, which connects the horizontal plate 501 and the vertical plate 502 on the same side.

[0041] like Figure 3 As shown, after the pre-assembled profile module A of the power distribution cabinet is assembled, the four-sided connecting frame 4 is located inside the side crossbeam. The side upright plate 404 of the four-sided connecting frame 4 is attached to the first side upright plate 12 of the column vertical beam. Several connecting through holes K on the side upright plate 404 correspond to several connecting through holes K on the first side upright plate 12 so as to install bolts and nuts.

[0042] The base plate 403 of the four-sided connecting frame 4 is attached to the first side plate 22 of the side crossbeam, with several connecting through holes K on both corresponding to each other. The main upright plate 401 of the four-sided connecting frame 4 is attached to the first front plate 24 and the second front plate 25 of the side crossbeam, with several connecting through holes K on the main upright plate 401 corresponding to the connecting through holes K on the first front plate 24 and the second front plate 25, respectively. The top plate 402 of the four-sided connecting frame 4 is attached to the second side plate 23 of the side crossbeam. The horizontal plate 501 of the triangular connecting frame 5 is attached to the second side plate 23, with several connecting through holes K on the top plate 402, the second side plate 23, and the horizontal plate 501 corresponding to each other. The vertical plate 502 of the triangular connecting frame 5 is attached to the first side upright plate 12 of the column vertical beam. Several connecting through holes K on the vertical plate 502 correspond to several connecting through holes K on the first side upright plate 12. The connecting through holes K on the above-mentioned different components correspond to each other for fixing and installation with bolts and nuts.

[0043] In the process of modular design, it is necessary to add some components to connect the various parts within the module. However, the number of components should be increased as little as possible to avoid increasing costs. Furthermore, the added components should not interfere with the assembly of the low-voltage drawer-type switchgear. At the same time, these components should not need to be disassembled during the assembly process to improve assembly efficiency.

[0044] Compared to low-voltage drawer-type switchgear assembled from pre-assembled profile modules A of the distribution cabinet, the low-voltage drawer-type switchgear assembled from pre-assembled profile modules A only adds four connecting frames 4, thus minimizing the cost of additional parts. The four connecting frames 4 do not interfere with or hinder the assembly of the low-voltage drawer-type switchgear, and there is no need to remove the four connecting frames 4 when assembling the low-voltage drawer-type switchgear. At the same time, it greatly improves assembly efficiency, significantly shortens delivery time, and saves logistics costs, thus saving the overall cost of the low-voltage drawer-type switchgear.

[0045] The pre-installed profile module A of the power distribution cabinet of this utility model is used for assembly such as Figure 5 The low-voltage drawer-type switchgear frame shown includes left and right side panels. The left and right side panels are fixedly connected at the bottom via a central base plate 6, a first bottom mounting plate 7, and a second bottom mounting plate 8. The top is fixedly connected via side rails and a top cover. When the first bottom mounting plate 7 is fixedly installed with the pre-installed profile module A, the four-sided connecting frame 4 does not interfere with or hinder the assembly of the low-voltage drawer-type switchgear. The pre-installed profile module A is also applicable when the size of the switchgear increases along the Y direction. Therefore, the pre-installed profile module A can be used with various specifications of low-voltage drawer-type switchgear.

[0046] The pre-assembled profile module A of this utility model can be pre-assembled and shipped. After receiving an order, these modules can be assembled into a low-voltage drawer-type switch cabinet, which greatly improves efficiency, shortens delivery time, and meets the needs of customers for fast delivery.

[0047] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A pre-assembled profile module for an electrical switchgear cabinet, characterized in that: It includes two vertical columns, two side beams, a connecting column, a four-sided connecting frame, and a triangular connecting frame. Each of the vertical columns, the side beams, the connecting column, the four-sided connecting frame, and the triangular connecting frame has several through holes for installing bolts. The two ends of the side crossbeam are fixedly connected to the column vertical beam through a four-sided connecting frame and fixedly installed with bolts and nuts. The four-sided connecting frame is located inside the side crossbeam. One side crossbeam is located at the bottom end of the two column vertical beams, and the other side crossbeam is close to the top end of the two column vertical beams. The connecting column is located between the two column beams, and the two ends of the connecting column are fixedly connected by a triangular connecting bracket and fixedly installed with bolts and nuts.

2. The switchgear prepack module of claim 1, wherein: The four-sided connecting frame includes a main upright plate, a top plate fixed to the upper end of the main upright plate, a bottom plate fixed to the lower end of the main upright plate, and side upright plates fixed to the side ends of the main upright plate. The top plate, the bottom plate, and the side upright plates are all perpendicularly connected to the main upright plate and extend protruding from the same side of the main upright plate. The main upright plate, the top plate, the bottom plate, and the side upright plates are all provided with a plurality of the aforementioned connecting through holes.

3. The switchgear prepack module of claim 2, wherein: The triangular connecting frame is also fixedly installed between the two ends of the upper side beam and the vertical beam of the column, and the triangular connecting frame is located below the upper side beam.

4. The switchgear prepack module of claim 3, wherein: The side crossbeam includes a back plate, a first side plate and a second side plate fixedly connected to both sides of the back plate, a first front plate and a second front plate opposite to the back plate, the first front plate and the second front plate are coplanar and have a gap between them, the first front plate is connected to the first side plate, the second front plate is connected to the second side plate, and a plurality of connection holes are provided on the first side plate, the second side plate, the first front plate and the second front plate.

5. The switchgear prepack module of claim 4, wherein: The column vertical beam includes a first vertical plate, a first side vertical plate and a second side vertical plate fixedly connected to both sides of the first vertical plate, a second vertical plate and a third vertical plate opposite to the first vertical plate, the second vertical plate and the third vertical plate being coplanar and spaced apart, the second vertical plate being connected to the first side vertical plate, and the third vertical plate being connected to the second side vertical plate. The first upright plate, the first side upright plate, the second upright plate, and the third upright plate are all provided with a plurality of the aforementioned connecting holes.

6. The switchgear prepack module of claim 5, wherein: The first upright plate has a recessed area in the middle, and the connecting hole on the first upright plate is located in the recessed area.