Modular assembled switchgear

Through modular design and innovative connection structure, the problem of complex switchgear assembly is solved, enabling rapid installation and efficient operation and maintenance, improving the stability and service life of the switchgear, and making it suitable for rapid deployment in power systems.

CN224400975UActive Publication Date: 2026-06-23LU SHANDONG ELECTRIC POWER GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LU SHANDONG ELECTRIC POWER GRP CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing switchgear lacks modularity, resulting in a complex and cumbersome assembly process that consumes a lot of time and is difficult to meet the needs of rapid deployment in power engineering.

Method used

The modular assembly switchgear is designed with a base plate, housing components, and connecting components. It achieves rapid installation and disassembly through the use of T-slots, T-slides, perforated connecting blocks, bolts, and nuts. The connection structure of slots, plates, springs, and slide rods improves installation efficiency and structural stability. The addition of shock-absorbing pads, heat dissipation holes, and dustproof nets enhances equipment performance and service life.

Benefits of technology

It enables rapid assembly and disassembly of switchgear, improves installation efficiency and flexibility, ensures structural stability and reliability, reduces operation and maintenance costs, and meets the power industry's demand for efficient installation and operation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a modularization assembly switch cabinet, including bottom plate, casing assembly and connecting component, casing assembly is located bottom plate top and contains at least two casing, and connecting component realizes the detachable connection of bottom plate and casing. Through setting up T type sliding slot, casing sets up the structure such as the connecting block with hole, cooperation multiple connecting component forms, make switch cabinet each part can quick assembly disassembly, effectively promote installation efficiency and flexibility, reduce operation and maintenance cost, be suitable for multiple electric power distribution scene.
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Description

Technical Field

[0001] This utility model belongs to the field of switch cabinet technology, specifically relating to a modular assembly switch cabinet. Background Technology

[0002] In modern power systems, switchgear serves as the core equipment for electrical control, protection, and power distribution. Its performance directly affects the safety and reliability of the power system. This type of equipment is widely used in low-voltage and high-voltage power distribution scenarios. It integrates key electrical components such as circuit breakers, disconnectors, load switches, and fuses. Through precise operation of the switching devices, it controls the on / off state of circuits and can quickly cut off fault currents, thus building a safety barrier for electrical equipment.

[0003] With the power industry's increasing demands for equipment installation efficiency and flexibility, the ease of switchgear assembly has become a growing focus. Although existing technologies have enabled switchgear assembly, its modularity remains insufficient in practical engineering applications. The lack of standardized and universal interface designs between components leads to a complex and cumbersome assembly process, requiring significant time and severely restricting production and construction efficiency, making it difficult to meet the current demands for rapid deployment in power engineering projects.

[0004] To address the aforementioned technical bottlenecks, this utility model innovatively designs a modular assembly switchgear, aiming to break through the limitations of traditional assembly modes by optimizing structural design and connection methods, and providing a new solution for the efficient installation and operation and maintenance of power equipment. Utility Model Content

[0005] To address the problems and shortcomings of the existing technology, this utility model provides a modular assembly switchgear. Through the ingenious design of the base plate, housing components, and connecting components, modular assembly of the switchgear is achieved, significantly improving installation efficiency. The various connection structures between the components ensure the stability and reliability of the overall structure. At the same time, the design of shock-absorbing pads, heat dissipation holes, dustproof nets, and anti-corrosion coatings further improves the performance and service life of the switchgear, reduces operation and maintenance costs, and can meet the power industry's needs for efficient equipment installation and operation and maintenance.

[0006] This utility model is achieved through the following technical solution:

[0007] A modular assembly switchgear is characterized by comprising a base plate, a housing assembly, and a connecting assembly. The housing assembly is positioned directly above the base plate and includes at least two housings. The connecting assembly enables a detachable connection between the base plate and the two or more housings. This detachable connection allows for rapid assembly of components during installation and convenient disassembly for maintenance or component replacement, significantly improving the efficiency and flexibility of switchgear installation and maintenance.

[0008] Furthermore, the upper surface of the base plate is provided with two sets of T-shaped sliding grooves. Each T-shaped sliding groove has a T-shaped sliding strip slidably installed on its inner wall. The upper surfaces of the two sets of T-shaped sliding strips are fixedly installed to the bottom surfaces of the two housings respectively. Each housing has a set of perforated connecting blocks fixedly installed on its inner wall. The two sets of perforated connecting blocks are fixedly installed using two sets of bolts and nuts. The cooperation between the T-shaped sliding grooves and T-shaped sliding strips provides precise guidance and positioning for the installation of the housings on the base plate, facilitating rapid installation. The bolts and nuts used to fix the perforated connecting blocks ensure a firm and reliable connection, guaranteeing the overall structural stability of the switchgear.

[0009] Furthermore, the connecting assembly includes two sets of support plates installed on the inner walls of the two housings. Each support plate has a slot on its upper surface, and the inner walls of the two sets of slots together engage with two sets of retaining plates. The slots on the support plates cooperate with the retaining plates to further strengthen the connection between the housings. At the same time, the snap-fit ​​method is simple to operate and can be assembled without complicated tools, thus improving assembly efficiency.

[0010] Furthermore, each card has an insertion hole on its front side, and perforated slides are fixedly installed on the side of each of the two sets of support plates that are close to each other. A slide rod is slidably installed on the inner wall of each perforated slide, and a top block is fixedly installed at the rear end of each slide rod. An insertion block is fixedly installed on the back of each top block, with the rear ends of the two insertion blocks inserted into the two sets of insertion holes respectively. This design of inserting the blocks into the insertion holes makes the connection between the card and the support plate more stable, preventing the card from loosening or falling off during use, and enhancing the overall reliability of the switch cabinet structure.

[0011] Furthermore, each slide bar has a spring fitted on its outer surface, with the rear end of each spring fixedly installed to the front of the top block, and the front ends of the two sets of springs fixedly installed to the rear ends of the two perforated slide blocks. The springs provide elastic preload to the insert blocks, allowing them to be inserted more tightly into the sockets and further improving the stability of the connection. At the same time, during disassembly, the spring force can assist the slide bars, top blocks, and insert blocks in resetting, facilitating operation.

[0012] Furthermore, each card plate has two stops at its rear. The ends of the two sets of stops, which are far apart from each other, are fixedly installed on the sides of the two sets of support plates that are close to each other. The stops prevent the card plate from shifting backward within the slot, thus limiting its position and ensuring its stability within the slot, thereby ensuring the reliability of the connection between the housings.

[0013] Furthermore, each housing has a sealed door hinged to its front by two hinges, and each sealed door has a handle fixedly installed on its front. The sealed doors effectively prevent debris from entering the switch cabinet and protect the internal electrical components; the handles make it easy for operators to open and close the sealed doors, improving ease of use.

[0014] Furthermore, vibration damping pads are fixedly installed at all four corners of the bottom surface of the base plate. These damping pads can effectively reduce the vibration generated during the operation of the switchgear, reduce the impact of vibration on internal electrical components, extend the service life of electrical components, and reduce the noise generated by vibration.

[0015] Furthermore, ventilation holes are provided on the side of the housing, and dust filters are installed inside the ventilation holes. The ventilation holes can accelerate the dissipation of heat inside the switchgear and prevent internal electrical components from being damaged due to overheating; the dust filters can prevent dust from entering the switchgear while ensuring ventilation and heat dissipation, thus protecting the normal operation of electrical components.

[0016] Furthermore, the surface of the connection components is coated with an anti-corrosion coating. This coating effectively prevents the connection components from being corroded by the external environment, extends their service life, and ensures the long-term stable operation of the switchgear.

[0017] The beneficial effects of this utility model are:

[0018] The device features a housing, T-shaped groove, and T-shaped slider, allowing for quick installation of the housing onto the base plate. The housing is positioned using a combination of perforated connecting blocks, bolts, and nuts to prevent slippage. Furthermore, the combination of a slot, locking plate, spring, and sliding rod allows the sliding rod to push the top plate and insert block into the socket, thus positioning the locking plate and enabling the installation of electrical equipment inside the switchgear. This allows for rapid assembly, saving installation time and improving efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the orthographic section of this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the base of this utility model.

[0023] List of components and reference numerals:

[0024] 1. Base plate; 2. Housing assembly; 201. Housing; 202. Sealing door; 203. Pull handle; 204. Connecting block with hole; 205. T-shaped slide rail; 206. T-shaped slide bar; 3. Connecting assembly; 301. Support plate; 302. Slot; 303. Card plate; 304. Insertion hole; 305. Slide seat with hole; 306. Slide rod; 307. Stop block; 308. Insertion block; 309. Spring; 310. Top block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the directional terms such as left, right, up, down, front, and back in the embodiments of this utility model are only relative concepts or are based on the normal use state of the product, i.e., the direction of the product's movement, and should not be considered as limiting.

[0027] In addition, it should be noted that the dynamic terms such as "relative motion" mentioned in the embodiments of this utility model not only refer to changes in position, but also include movements such as rotation and rolling in which the position does not change relative to the position, but the state changes.

[0028] Finally, it should be noted that when a component is said to be "located on" or "set on" another component, it can be on the other component or may have an intervening component at the same time. When a component is said to be "connected to" another component, it can be directly connected to the other component or may have an intervening component at the same time.

[0029] Please see Figures 1 to 4 This utility model provides a modular assembly switch cabinet, including a base plate 1, a housing assembly 2 on the top of the base plate 1, and a connecting assembly 3 installed inside the housing assembly 2.

[0030] Please see Figure 1 , Figure 2 and Figure 4 Two housings 201 are provided above the base plate 1. Two sets of T-shaped sliding grooves 205 are provided on the upper surface of the base plate 1. A T-shaped sliding strip 206 is slidably installed on the inner wall of each T-shaped sliding groove 205. The upper surfaces of the two sets of T-shaped sliding strips 206 are fixedly installed to the bottom surfaces of the two housings 201 respectively. A set of perforated connecting blocks 204 is fixedly installed on the inner wall of each housing 201. The two sets of perforated connecting blocks 204 are fixedly installed by two sets of bolts and nuts. Through the cooperation of the T-shaped sliding strips 206 and the T-shaped sliding grooves 205, the base plate 1 and the housings 201 can be connected, and the perforated connecting blocks 204 can facilitate the installation and positioning of the housings 201.

[0031] Please see Figure 3The connecting component 3 includes two sets of support plates 301 installed on the inner walls of the two housings 201. Each support plate 301 has a slot 302 on its upper surface. The inner walls of the two sets of slots 302 are connected to two sets of clamping plates 303. Through the cooperation of the clamping plates 303 and the slots 302, electrical equipment can be installed on the clamping plates 303.

[0032] Please see Figure 3 Each card plate 303 has an insertion hole 304 on its front side. Two sets of support plates 301 are fixedly installed with perforated slide blocks 305 on their adjacent sides. Each perforated slide block 305 has a slide rod 306 slidably installed on its inner wall. Each slide rod 306 has a top block 310 fixedly installed at its rear end. Each top block 310 has an insertion block 308 fixedly installed on its back side. The rear ends of the two insertion blocks 308 are respectively inserted into the two sets of insertion holes 304. Through the cooperation of the slide rod 306 and the perforated slide block 305, the insertion block 308 can be pushed into the insertion hole 304 to position the card plate 303.

[0033] Please see Figure 3 Each slide bar 306 has a spring 309 fitted on its outer surface. The rear end of each spring 309 is fixedly installed on the front of the top block 310. The front ends of the two sets of springs 309 are fixedly installed on the rear ends of the two perforated slide blocks 305. The springs 309 can apply a pushing force to the top block 310, so that the top block 310 can apply a pushing force to the insert block 308, so that the insert block 308 can be inserted into the insertion hole 304.

[0034] Please see Figure 3 Each card plate 303 has two stops 307 at its rear. The ends of the two sets of stops 307 that are far apart from each other are fixedly installed on the sides of the two sets of support plates 301 that are close to each other. By providing the stops 307, the card plate 303 can be limited so that the card plate 303 can remain stable.

[0035] Please see Figure 1 Each housing 201 has a sealing door 202 hinged to its front by two hinges. Each sealing door 202 has a handle 203 fixedly installed on its front. Through the cooperation of the sealing door 202 and the handle 203, the handle 203 can easily open the sealing door 202.

[0036] The implementation principle of a modular assembly switchgear according to an embodiment of this application is as follows: In use, the housing 201 is first moved to the left and right sides of the base plate 1. Then, the T-shaped slide bar 206 is inserted into the T-shaped slide groove 205. Next, the two housings 201 are pushed to make them contact each other. Then, bolts are inserted into the two sets of perforated connecting blocks 204. The perforated connecting blocks 204 are then installed and positioned using nuts to prevent the housings 201 from loosening. The slide bar 306 is pulled, causing it to drive the top block 310 and the insertion block 308, allowing the insertion block 308 to move forward and compress the spring 309. Next, the retaining plate 303 is inserted into the retaining groove 302. Then, the slide bar 306 is released, and the spring 309 pushes the top block 310, causing the top block 310 to push the insertion block 308 to move, allowing the insertion block 308 to be inserted into the socket 304, thus positioning the retaining plate 303 and completing the installation of the switchgear.

[0037] In one embodiment, the base plate 1 is made of high-strength metal, and the two sets of T-shaped grooves 205 on the upper surface are sized to match the T-shaped slide bars 206. The housing assembly 2 includes two housings 201, also made of metal, and the perforated connecting blocks 204 fixedly installed on the inner wall of each housing 201 are of standard specifications. The support plate 301, clamping plate 303, perforated slide block 305, slide rod 306, top block 310, and insert block 308 in the connecting assembly 3 are all made of high-quality steel. During assembly, the T-shaped slide bar 206 is aligned with the T-shaped groove 205 and slid in, so that the two housings 201 are initially positioned on the base plate 1. Then, the perforated connecting blocks 204 are fixed with bolts and nuts. Next, the clamping plate 303 is inserted into the clamping groove 302 of the support plate 301, and the slide rod 306 is pushed to insert the insert block 308 into the insertion hole 304 of the clamping plate 303. The spring 309 provides preload force, completing the assembly of the entire switch cabinet. This embodiment is applicable to general low-voltage power distribution scenarios.

[0038] In one embodiment, the base plate 1 and the housing 201 are made of aluminum alloy, which is lighter than metal and easier to handle and install. The shock-absorbing pads are made of rubber, providing good shock absorption. The number and size of the heat dissipation holes on the side of the housing 201 are optimized according to the heat generation of the internal electrical components, and the dustproof mesh is made of fine metal wire mesh to ensure good dustproof and heat dissipation performance. During installation, the assembly is carried out following steps similar to those in Embodiment 1. Due to the characteristics of the materials, the switch cabinet of this embodiment is more suitable for indoor power distribution environments where weight is a constraint.

[0039] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A modularly assembled switchgear, characterized in that, It includes a base plate, a housing assembly, and a connecting assembly. The housing assembly is located directly above the base plate and includes at least two housings. The connecting assembly enables a detachable connection between the base plate and the two or more housings.

2. The modular assembly switchgear according to claim 1, characterized in that: The upper surface of the base plate is provided with two sets of T-shaped sliding grooves. Each T-shaped sliding groove has a T-shaped sliding strip slidably installed on its inner wall. The upper surfaces of the two sets of T-shaped sliding strips are fixedly installed to the bottom surfaces of the two shells respectively. Each shell has a set of perforated connecting blocks fixedly installed on its inner wall. The two sets of perforated connecting blocks are fixedly installed by two sets of bolts and nuts.

3. A modular assembly switchgear according to claim 2, characterized in that: The connecting assembly includes two sets of support plates installed on the inner walls of the two housings. Each support plate has a slot on its upper surface, and the inner walls of the two sets of slots are engaged with two sets of locking plates.

4. A modular assembly switchgear according to claim 3, characterized in that: Each of the card plates has an insertion hole on its front side. The two sets of support plates are fixedly installed with a perforated slide on their side side that is close to each other. A slide rod is slidably installed on the inner wall of each perforated slide. A top block is fixedly installed at the rear end of each slide rod. An insertion block is fixedly installed on the back side of each top block. The rear ends of the two insertion blocks are respectively inserted into the two sets of insertion holes.

5. A modular assembly switchgear according to claim 4, characterized in that: Each of the slide rods is fitted with a spring on its outer surface. The rear end of each spring is fixedly installed to the front end of the top block. The front ends of the two sets of springs are fixedly installed to the rear ends of the two perforated slide blocks.

6. A modular assembly switchgear according to claim 3, characterized in that: Each of the card plates has two blocks at the rear, and the ends of the two sets of blocks that are far apart from each other are fixedly installed on the sides of the two sets of support plates that are close to each other.

7. A modularly assembled switchgear according to claim 2, characterized in that: Each of the housings has a sealing door hinged to its front by two hinges, and each sealing door has a handle fixedly installed on its front.

8. A modular assembly switchgear according to claim 1, characterized in that, Shock-absorbing pads are fixedly installed at all four corners of the bottom surface of the base plate.

9. A modular assembly switchgear according to claim 1, characterized in that, The side of the housing has heat dissipation holes, and a dustproof mesh is installed inside the heat dissipation holes.

10. A modularly assembled switchgear according to claim 1, characterized in that, The surface of the connecting component is coated with an anti-corrosion coating.