Assembly type power distribution cabinet

Abstract

The utility model relates to an assembly type power distribution cabinet, which relates to the field of power distribution cabinets, and comprises a base, a side plate, a top plate, a right-angle connecting piece and a telescopic rod, the lower part of the side plate is connected to the base, the top plate is arranged above the side plate, bending parts are arranged at the edges of the two sides of the side plate, and mounting grooves are formed in the two side edges of the right-angle connecting piece. The mounting groove extends to the bottom of the right-angle connecting piece from the top of the right-angle connecting piece, the bent part is inserted into the mounting groove, and the size of an opening of the mounting groove is smaller than that of the bent part; the telescopic rods abut against the two adjacent right-angle connecting pieces and are used for driving the two right-angle connecting pieces to be away from each other. According to the utility model, the bending parts are arranged at the edges of the side plates, and the mounting grooves formed in the right-angle connecting pieces are used for being matched with the bending parts for mounting, so that the rapid assembly of the power distribution cabinet can be realized, the telescopic rods are used for pre-tightening the bending parts and the mounting grooves of the right-angle connecting pieces and supporting the bending parts and the mounting grooves in the power distribution cabinet, and the firmness degree of the power distribution cabinet can be improved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinets, and in particular to a prefabricated power distribution cabinet. Background Technology

[0002] Distribution cabinets are specialized equipment used in power systems for centralized distribution, control, protection, and monitoring of electrical energy. They are widely used in buildings, factories, infrastructure, and other places. Prefabricated distribution cabinets are a type of distribution cabinet based on modular design and prefabrication. Their core feature is the standardization of structural components, which facilitates transportation and is suitable for rapid on-site assembly.

[0003] Currently, a Chinese patent with announcement number CN222749883U and announcement date of April 11, 2025, proposes a new type of prefabricated power distribution cabinet, including a cabinet base, heat dissipation support frames that are slidably inserted on both sides of the cabinet base, a sealing base plate that is slidably inserted on the top of the cabinet base, a back mounting plate that is slidably inserted on one side of the cabinet base and the heat dissipation support frames, two hinge mounting grooves that fit with movable hinges at the bottom of the back mounting plate, and a top protective cover that is fixedly connected to the top of the cabinet base, the heat dissipation support frames and the back mounting plate by bolts.

[0004] During use, heat dissipation support frames are inserted into both sides of the cabinet base. The assembly of the power distribution cabinet is completed by bolting the back mounting plate and the top protective cover to the cabinet base and the heat dissipation support frames.

[0005] Regarding the aforementioned technologies, when bolts are used to install and fix the various side panels of the distribution cabinet, the bolts are directly exposed to the environment and are prone to oxidation. After the bolts are oxidized or corroded, the connection is prone to loosening, affecting the overall stability of the distribution cabinet. Utility Model Content

[0006] To improve the robustness of assembled power distribution cabinets, this utility model provides an assembled power distribution cabinet.

[0007] This utility model provides a prefabricated power distribution cabinet, which adopts the following technical solution:

[0008] A prefabricated power distribution cabinet includes a base, side panels, and a top panel. The side panels are connected to the base from below, and the top panel is mounted on top of the side panels. It also includes right-angle connectors and a telescopic rod. The side panels have bent portions at their two edges. Each right-angle connector has a mounting groove on both sides, extending from the top to the bottom of the connector. The bent portions are inserted into the mounting grooves, and the opening of the mounting groove is smaller than the size of the bent portions. The telescopic rod abuts between two adjacent right-angle connectors and is used to drive the two right-angle connectors away from each other.

[0009] By adopting the above technical solution, firstly, four right-angle connectors are placed at the four corners of the base. Then, the bent parts of the side plates are inserted downwards from the top of the right-angle connectors into the mounting grooves of the right-angle connectors, and the four side plates are connected to the four right-angle connectors in sequence. Next, the telescopic rod is abutted between two adjacent right-angle connectors and extended. At this time, the two right-angle connectors connected at both ends of the side plates move away from each other, and the bent parts move towards the opening of the mounting groove in the right-angle connector, gradually locking the bent parts of the side plates in the mounting groove, making the connection between the side plates and the right-angle connectors more secure. At the same time, the telescopic rod can also provide support between the two right-angle connectors. Finally, the base and the top plate are fixedly installed at the bottom and top of the right-angle connectors, respectively. In this way, the installation of the bending section and the right-angle connector in the mounting slot can be used to achieve rapid assembly of the power distribution cabinet. At the same time, the use of the telescopic rod to pre-tighten the mounting slot of the bending section and the right-angle connector can increase the firmness of the connection between the right-angle connector and the side plate. In addition, the telescopic rod can also provide support inside the power distribution cabinet, further improving the firmness of the power distribution cabinet.

[0010] Optionally, both the mounting groove and the bending portion have teardrop-shaped cross-sections.

[0011] By adopting the above technical solution, when the telescopic rod extends, the bent part will move towards the opening of the mounting groove, thereby causing the side wall of the bent part to abut against the side wall of the mounting groove. The teardrop-shaped structure of the bent part and the mounting groove means that as the bent part moves towards the opening of the mounting groove, the side wall of the bent part abuts against the side wall of the mounting groove more and more tightly, which can increase the firmness of the connection between the side plate and the right-angle connector.

[0012] Optionally, the telescopic rod includes a screw and a sleeve, and two sleeves are provided, which are respectively connected to the two ends of the screw through a threaded structure.

[0013] By adopting the above technical solution, with the screw stationary, rotating the sleeve clockwise causes it to move away from the center of the screw under the drive of the threaded structure, thus extending the telescopic rod. Conversely, with the screw stationary, rotating the sleeve in the opposite direction causes it to move closer to the center of the screw under the drive of the threaded structure, thus shortening the telescopic rod. In this way, by using the threaded structure to drive the telescopic rod's extension, when the telescopic rod abuts against the right-angle connector, the self-locking characteristic of the threaded structure reduces the probability of loosening of the connection between the right-angle connector and the side plate due to the telescopic rod shortening under force, thereby improving the stability of the prefabricated distribution cabinet.

[0014] Optionally, the right-angle connector is provided with a sleeve, the axial direction of the sleeve is arranged in the horizontal direction, and the sleeve rod is rotatably disposed in the sleeve.

[0015] By adopting the above technical solution, when the telescopic rod is abutted between two adjacent right-angle connectors, the sleeve of the telescopic rod is installed in the sleeve of the right-angle connector, and then the sleeve is installed at both ends of the screw through a threaded structure. In this way, by setting a sleeve on the right-angle connector, the sleeve installed in the sleeve provides a positioning function for the abutment position of the telescopic rod, improving installation efficiency; at the same time, it also provides a limit for the telescopic rod when adjusting its extension, reducing the probability of the telescopic rod tilting and falling between the two right-angle connectors, thus improving the stability of the telescopic connection.

[0016] Optionally, a support assembly is also included, which includes two support rods and a support plate. The two support rods are respectively connected to the telescopic rods on both sides, and the two ends of the support plate are respectively mounted on the two support rods. The support rods are provided with mounting holes for installing electrical components.

[0017] When electrical components are directly mounted on the cabinet of the distribution cabinet, vibrations from the cabinet are directly transmitted to the components, potentially leading to loose wiring and poor contact. By employing the aforementioned technical solution, support rods are mounted on telescopic rods within the cabinet, support plates are then mounted on these rods, and finally, the electrical components are mounted on the support plates. The support plates provide support for the components, and when the cabinet vibrates, the vibration is absorbed through the support rods, plates, and various connection points, effectively reducing the vibration transmitted to the electrical components. Thus, by using support rods and plates to isolate and absorb vibrations, the vibration transmitted to the electrical components is effectively reduced, improving the stability of the electrical components during operation.

[0018] Optionally, two telescopic rods are provided between every two adjacent right-angle connectors, and the two ends of the support rod are respectively connected to the two telescopic rods.

[0019] By adopting the above technical solution, two adjacent right-angle connectors are connected by two telescopic rods, which allows the two telescopic rods to provide support above and below the two adjacent right-angle connectors respectively, thereby improving the stability of the right-angle connectors when supporting the side plate; the support rod is connected to the telescopic rod at both the top and bottom, so that the support rod can be stably supported at both the top and bottom, thereby improving the stability of the support rod when supporting the support plate.

[0020] Optionally, the support rod is connected to the telescopic rod via a connecting assembly, the connecting assembly including a telescopic member and two fasteners, the two fasteners being respectively connected to both ends of the telescopic member, and the fasteners being slidably mounted on the telescopic rod.

[0021] By adopting the above technical solution, the telescopic component is shortened, which causes the fasteners at both ends to move closer together. This, in turn, pulls the telescopic rod connected to the fasteners closer together, keeping both the telescopic rod and the support rod in a taut state and improving overall stability. The fasteners are slidably set on the telescopic rod, which also allows for flexible adjustment of the position of the support component, facilitating the installation of the support rod and adjusting the installation position of the support component according to the size of the electrical components.

[0022] Optionally, the fastener is further provided with a fastening bolt, which is used to abut against the telescopic rod.

[0023] By adopting the above technical solution, the fastening bolts can fix the fasteners to the telescopic rod, reduce the probability of the support rod shifting position without human control, and improve stability.

[0024] Optionally, it also includes a flat plate connector, wherein both ends of the flat plate connector are provided with mounting grooves, and the bent portion is inserted into the mounting grooves.

[0025] By adopting the above technical solution, the flat panel connector can splice multiple side panels in one plane, thereby increasing the length of the side panels. This allows the size of the power distribution cabinet to be flexibly spliced ​​and adjusted as needed, increasing the convenience of use.

[0026] In summary, this utility model has at least one of the following beneficial technical effects:

[0027] By setting a bend at the edge of the side panel and a mounting groove on the right-angle connector for installation with the bend, the power distribution cabinet can be quickly assembled. At the same time, the use of a telescopic rod to pre-tighten the mounting groove of the bend and the right-angle connector can increase the firmness of the connection between the right-angle connector and the side panel. The telescopic rod can also provide support inside the power distribution cabinet, further improving the cabinet's overall strength.

[0028] Using a threaded structure to drive the extension rod can take advantage of the self-locking property of the threaded structure to reduce the probability of the right-angle connector and side plate becoming loose due to the extension rod shortening under force, thus improving the stability of the assembled distribution cabinet.

[0029] By setting up support components to support electrical components inside the distribution cabinet, the support rods and support plates in the support components can isolate and absorb vibrations, effectively reducing the vibrations transmitted to the electrical components and improving the stability of the electrical components' operation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of the implementation of this application;

[0032] Figure 3 This is a schematic diagram of the internal support framework structure of an embodiment of this application;

[0033] Figure 4 yes Figure 2 Enlarged view of a section at point I;

[0034] Figure 5 yes Figure 3 Enlarged view of section II in the middle.

[0035] Explanation of reference numerals in the attached drawings: 100, base; 200, side plate; 201, bend; 300, top plate; 400, right-angle connector; 401, mounting groove; 410, sleeve; 420, flat plate connector; 500, telescopic rod; 510, screw; 520, sleeve rod; 600, support assembly; 610, support rod; 620, support plate; 700, connecting assembly; 710, telescopic component; 720, fastener; 730, fastening bolt. Detailed Implementation

[0036] The following combination Figures 1 to 5 The present invention will be described in further detail below.

[0037] This utility model discloses a prefabricated power distribution cabinet. (Refer to...) Figures 1 to 3 A prefabricated power distribution cabinet mainly includes a base 100, a top plate 300, side plates 200, right-angle connectors 400 for connecting the side plates 200, and a support assembly 600 for installing electrical components. The bottoms of the four right-angle connectors 400 are respectively fixed at the four corners of the base 100. The side plates 200 are fixed between two adjacent right-angle connectors 400. After the side plates 200 are fixed, they form the side walls of the cabinet. The top plate 300 is fixed to the top of the right-angle connectors 400 for shielding the top of the power distribution cabinet. The power distribution cabinet is formed by assembling the base 100, the top plate 300, and the multiple side plates 200 through the right-angle connectors 400. The support assembly 600 is installed inside the power distribution cabinet for fixing and installing electrical components.

[0038] Reference Figure 1 Both the base 100 and the top plate 300 are made of bent steel plates, and the bent portions of the base 100 and the top plate 300 are fixedly connected by rivets; the side plate 200 is a rectangular plate made by bending the two sides of the plate to form teardrop-shaped pleats, and the pleats formed by bending the plate form the bent portion 201 of the plate.

[0039] In this embodiment, the front, back, left and right sides of the cabinet are all formed by splicing side panels 200. The side panel 200 used at the front of the cabinet has a door frame, and the cabinet door is connected to the door frame by hinges to form the cabinet of the power distribution cabinet.

[0040] Reference Figures 3 to 5 The right-angle connector 400 is an L-shaped metal profile. Mounting grooves 401 are formed at both ends of the right-angle connector 400 for mounting the bent portions 201 of the side plate 200. The mounting grooves 401 are set along the length of the right-angle connector 400 and extend from the top to the bottom of the right-angle connector 400. To better accommodate the bent portions 201 of the side plate 200 within the mounting grooves 401 of the right-angle connector 400, the shape of the mounting grooves 401 is machined to match the bent portions 201 of the side plate 200, and the size of the mounting grooves 401 is slightly larger than the size of the bent portions 201. During installation, the bent portions 201 of the side plate 200 are inserted from the top of the right-angle connector 400 into the mounting grooves 401 of the bracket connector.

[0041] Reference Figure 3 and Figure 5 To increase the stability of the power distribution cabinet after assembly, a telescopic rod 500 is provided between two adjacent right-angle connectors 400. The telescopic rod 500 includes a screw 510 and two sleeves 520. The screw 510 has threaded structures at both ends, and the sleeves 520 have threaded structures inside that mate with the screw 510. The two sleeves 520 are connected to the two ends of the screw 510 through the threaded structures. A sleeve 410 is also fixedly installed on the right-angle connector 400. The sleeve 410 is horizontally positioned for installing the telescopic rod 500.

[0042] During installation, first install the sleeve 520 onto the screw 510, and then tighten the sleeve 520 to bring the telescopic rod 500 to its shortest state. Next, align the sleeve 520 with the sleeve 410 on the right-angle connector 400, and insert the sleeve 520 into the sleeve 410. Then, tighten the sleeve 520 to move it outward relative to the screw 510, extending the telescopic rod 500 as a whole. The telescopic rod 500 then abuts against the inside of the sleeve 410 of the two right-angle connectors 400, and the two right-angle connectors 400 are moved in a direction that is relatively far apart.

[0043] After the bent portions 201 at both ends of the side plate 200 are respectively inserted into the two right-angle connectors 400, the telescopic rod 500 is used to abut the two right-angle connectors 400 in a relatively far direction. This allows the two right-angle connectors 400 to pull the side plate 200 from both sides, making the bent portions 201 tighter and tighter in the mounting grooves 401 of the right-angle connectors 400, increasing the stability of the side plate 200 and the right-angle connectors 400. At the same time, the telescopic rod 500 can also provide support between the two right-angle connectors 400, increasing the stability of the distribution cabinet. The sleeve 410 can limit the telescopic rod 500, allowing the telescopic rod 500 to stably abut the right-angle connectors 400 inside the sleeve 410, reducing the probability of the telescopic rod 500 tilting or falling.

[0044] Reference Figure 3 Two telescopic rods 500 are provided between every two adjacent right-angle connectors 400. One telescopic rod 500 is located above the two right-angle connectors 400, and the other telescopic rod 500 is located below the right-angle connectors 400. The two telescopic rods 500 provide support above and below the two adjacent right-angle connectors 400, respectively.

[0045] Reference Figure 4 The support assembly 600 includes two support rods 610 and a support plate 620. The two support rods 610 are respectively connected to the telescopic rods 500 on both sides. The upper part of the support rod 610 is connected to the telescopic rod 500 above the right-angle connector 400 through a connecting assembly 700, and the lower part of the support rod 610 is connected to the telescopic rod 500 below the right-angle connector 400 through the connecting assembly 700, so that the support rod 610 can be vertically fixed. After fixing both support rods 610 in the vertical direction, the support plate 620 is installed between the two support rods 610. The support plate 620 is made of sheet metal. The two sides of the support plate 620 are bent to form circular pleats. During installation, the circular pleats on both sides of the support plate 620 are fitted onto the support rod 610 to complete the connection between the support rod 610 and the support plate 620. As the telescopic member 710 presses the right-angle connector 400 against both sides, the two support rods 610 will move away from each other, thereby causing the support rods 610 to be tensioned inside the circular pleats on both sides of the support plate 620, thus completing the connection and fixation between the support rod 610 and the support plate 620.

[0046] Reference Figure 4 The connecting assembly 700 includes a telescopic member 710, two fasteners 720, and two fastening bolts 730 respectively disposed on the two fasteners 720. The fastener 720 is a circular collar with a stud on its outer circumference. The telescopic member 710 is a threaded cylinder. The telescopic member 710 and the fastener 720 can be connected by installing the stud on the fastener 720 at the end of the telescopic member 710 through a threaded structure. At the same time, by rotating the telescopic member 710, the telescopic member 710 and the fastener 720 can be moved away from or closer to each other with the help of the threaded structure, thereby realizing the telescopic function. The circular collar of the fastener 720 is provided with a through threaded hole, and the fastening bolt 730 is installed in the threaded hole of the fastener 720. By tightening the fastening bolt 730, the end of the fastening bolt 730 can protrude from the inner circumference of the fastener 720.

[0047] During installation, first install the two fasteners 720 of the connecting component 700 at both ends of the telescopic component 710. Then, fit the two fasteners 720 onto the corresponding upper and lower telescopic rods 500. At this time, the fasteners 720 can slide interactively on the telescopic rods 500, thereby driving the support rod 610 to slide on the telescopic rods 500. After sliding the telescopic rods 500 to the appropriate position, rotate the telescopic component 710. With the cooperation of the threaded structure at both ends of the telescopic component 710, the two fasteners 720 will be pulled closer together, thereby tightening the fasteners 720 onto the telescopic rods 500. At the same time, tighten the fastening bolts 730 on the fasteners 720 to fix the position of the fasteners 720 and the telescopic rods 500.

[0048] Reference Figure 2 and Figure 3 To enable flexible assembly of the power distribution cabinet and expand its application scenarios, the two side panels 200 can be assembled using a flat plate connector 420 to increase the width of the side panels 200. The flat plate connector 420 has mounting slots 401 on both sides that are identical in shape to those on the right-angle connector 400. During installation, the flat plate connector 420 and the side panels 200 can be assembled by inserting the bent parts 201 on both sides of the side panels 200 into the mounting slots 401 of the flat plate connector 420. Then, the other end of the side panels 200 is connected to the right-angle connectors 400 on both sides, and finally, the two right-angle connectors 400 are tightened using a telescopic rod 500 to complete the fixation.

[0049] The implementation principle of a prefabricated power distribution cabinet according to this utility model embodiment is as follows:

[0050] During installation, firstly, four right-angle connectors 400 are fixed to the four corners of the base 100 with screws; secondly, the side panels 200 are assembled using flat connectors 420, and then the side panels 200 are installed on the right-angle connectors 400 to form the cabinet of the distribution cabinet; finally, the top panel 300 is installed on top of the cabinet and fixed to the right-angle connectors 400 with screws to complete the overall assembly of the distribution cabinet.

[0051] When installing the cabinet, firstly, fasteners 720 of the support rod 610 are fitted onto the screw 510 of the telescopic rod 500, and sleeves 520 of the telescopic rod 500 are installed on the screw 510 to complete the connection of the telescopic rod 500; secondly, the telescopic rod 500 is installed in the sleeve 410 of the right-angle connector 400; thirdly, the support rod 610 is inserted into the circular pleats on both sides of the support plate 620, and the telescopic component 710 of the support rod 610 is connected to the fasteners 720. After adjusting the position of the support rod 610, the telescopic component 710 is rotated to tighten the upper and lower telescopic rods 500, and the support rod 610 is fixed with fastening bolts 730. Finally, the sleeves 520 on the telescopic rod 500 are tightened in sequence to control the extension of the telescopic rod 500 to press against the right-angle connector 400, so that the right-angle connector 400 and the side plate 200 are tensioned together, and the telescopic rod 500 is supported inside the distribution cabinet.

[0052] In summary, this application enables rapid assembly of the distribution cabinet by providing a bent portion 201 at the edge of the side plate 200 and an installation groove 401 on the right-angle connector 400 for installation with the bent portion. Simultaneously, using a telescopic rod 500 to pre-tighten the bent portion 201 and the installation groove 401 of the right-angle connector 400 increases the firmness of the connection between the right-angle connector 400 and the side plate 200. The telescopic rod 500 also provides internal support for the distribution cabinet, further enhancing its robustness. Furthermore, using a threaded structure to drive the extension of the telescopic rod 500 utilizes the self-locking characteristic of the threaded structure to reduce the probability of loosening of the connection between the right-angle connector 400 and the side plate 200 due to the telescopic rod 500 shortening under stress, thus improving the stability of the assembled distribution cabinet.

[0053] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made according to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A prefabricated power distribution cabinet, comprising a base (100), side panels (200), and a top plate (300), wherein the side panels (200) are connected below to the base (100), and the top plate (300) is mounted above the side panels (200), characterized in that: It also includes a right-angle connector (400) and a telescopic rod (500). The side plate (200) has a bent portion (201) at both edges. The right-angle connector (400) has a mounting groove (401) on both sides. The mounting groove (401) extends from the top of the right-angle connector (400) to the bottom of the right-angle connector (400). The bent portion (201) is inserted into the mounting groove (401). The size of the opening of the mounting groove (401) is smaller than the size of the bent portion (201). The telescopic rod (500) abuts between two adjacent right-angle connectors (400), and the telescopic rod (500) is used to drive the two right-angle connectors (400) away from each other.

2. The prefabricated power distribution cabinet according to claim 1, characterized in that: Both the mounting groove (401) and the bending portion (201) have teardrop-shaped cross-sections.

3. The prefabricated power distribution cabinet according to claim 1, characterized in that: The telescopic rod (500) includes a screw (510) and a sleeve (520). There are two sleeves (520), and the two sleeves (520) are respectively connected to the two ends of the screw (510) by a threaded structure.

4. A prefabricated power distribution cabinet according to claim 3, characterized in that: The right-angle connector (400) is provided with a sleeve (410), the sleeve (410) is arranged axially in the horizontal direction, and the sleeve rod (520) is rotatably arranged in the sleeve (410).

5. A prefabricated power distribution cabinet according to any one of claims 1-4, characterized in that: It also includes a support assembly (600), which includes two support rods (610) and a support plate (620). The two support rods (610) are respectively connected to the telescopic rods (500) on both sides. The two ends of the support plate (620) are respectively installed on the two support rods (610). The support rods (610) are provided with mounting holes for installing electrical components.

6. A prefabricated power distribution cabinet according to claim 5, characterized in that: Two telescopic rods (500) are provided between every two adjacent right-angle connectors (400). The support rod (610) is vertically arranged, and both ends of the support rod (610) are respectively connected to the two telescopic rods (500).

7. A prefabricated power distribution cabinet according to claim 5, characterized in that: The support rod (610) is connected to the telescopic rod (500) via a connecting assembly (700). The connecting assembly (700) includes a telescopic member (710) and two fasteners (720). The two fasteners (720) are respectively connected to both ends of the telescopic member (710) and are slidably mounted on the telescopic rod (500).

8. A prefabricated power distribution cabinet according to claim 7, characterized in that: The fastener (720) is also provided with a fastening bolt (730), which is used to abut against the telescopic rod (500).

9. A prefabricated power distribution cabinet according to any one of claims 1-4, characterized in that: It also includes a flat plate connector (420), both ends of which are provided with mounting grooves (401), and the bent part (201) is inserted into the mounting grooves (401).

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