A depth adjustable circuit breaker mounting plate assembly

Abstract

An adjustable-depth circuit breaker mounting plate assembly includes symmetrically arranged side beams for mounting on a bracket. Each side beam has multiple first mounting holes along its length, and each first mounting hole corresponds to at least two sliders. The sliders are connected to support beams for mounting the circuit breaker. This application standardizes two side beams, two switch support beams, and four movable sliders to form an adjustable-depth circuit breaker mounting plate assembly. This allows for standardized, mass-produced prefabrication, eliminating redundant design, improving efficiency, shortening production cycles, saving management and installation costs, and enhancing the competitiveness of complete power distribution products.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker installation in electrical equipment, and in particular to a circuit breaker mounting plate assembly with adjustable depth. Background Technology

[0002] Traditionally, circuit breakers in the industry are fixed by mounting plates on a cabinet frame, such as... Figure 1 The circuit breaker mounting plate is directly secured to the front and side center columns on both sides with self-tapping screws, and then the circuit breaker is installed on this mounting plate. The depth of the circuit breaker mounting plate is limited by the front and side center columns, resulting in poor support strength and easy deformation when the circuit breaker body is large. This invention addresses the problems of the fixed depth of the circuit breaker mounting plate, poor support strength, and restricted copper busbar routing within the cabinet. Utility Model Content

[0003] To address the aforementioned issues, this technical solution provides a circuit breaker mounting plate assembly with adjustable depth, which solves problems such as the fixed depth of the circuit breaker mounting plate, poor support strength, and restricted copper busbar routing within the cabinet.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] An adjustable-depth circuit breaker mounting plate assembly includes side beams symmetrically arranged for mounting on a bracket. The side beams have a plurality of first mounting holes along their length, and at least two sliders are provided corresponding to the first mounting holes. The sliders are connected to a support beam for mounting the circuit breaker.

[0006] In some embodiments, the surface of the support beam is provided with a plurality of second mounting holes for installing circuit breakers at different locations.

[0007] In some embodiments, the inner side of the side beam is provided with a surrounding portion for limiting the slider.

[0008] In some embodiments, the side beam is bent outwards and provided with a mounting portion for fixing to the bracket.

[0009] In some embodiments, the side beam is made of 2.0mm galvanized steel sheet.

[0010] In some embodiments, the first mounting hole and the second mounting hole are oblong holes.

[0011] In some embodiments, the support beam is fixed to the side beam by bolts and nuts.

[0012] The beneficial effects of this application are:

[0013] This application standardizes two side beams, two switch support beams, and four movable sliders to form a circuit breaker mounting plate assembly with controllable depth. This assembly can be prefabricated in a standardized and mass production manner, eliminating redundant design, improving efficiency, shortening the production cycle, saving management and installation costs, and enhancing the competitiveness of complete power distribution products. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 This is a structural diagram of existing technology. Figure 1 ;

[0016] Figure 2 This is a structural diagram of existing technology. Figure 2 ;

[0017] Figure 3 This is a structural diagram of existing technology. Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0019] Figure 5 This is a schematic diagram of the application structure of this utility model. Detailed Implementation

[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Please refer to Figure 1-3 As shown, traditional low-voltage circuit breaker installation involves mounting and fixing the circuit breaker using a mounting plate. When the circuit breaker's dimensions are small, the mounting plate becomes too deep, occupying a large amount of space; when the circuit breaker's dimensions are large, the support strength is insufficient, and the mounting plate tends to slightly indent towards the center, causing errors in subsequent copper busbar installation. Currently, the closest solution to this problem is to design a mounting plate with a depth matching the circuit breaker's dimensions, such as... Figure 2 The depth of the circuit breaker mounting plate has been shortened to make room for the design and routing of the copper busbars inside the cabinet.

[0022] Currently, the industry standard for circuit breaker mounting plates involves securing them with self-tapping screws via front and side uprights. The mounting plate depth is a fixed dimension. When double frames are placed vertically within the cabinet, the copper busbars must avoid the circuit breaker mounting plates to ensure adequate insulation clearance. Figure 3(Left side view). A typical solution involves connecting the front and side columns using two end cap beams. Then, depending on the specific size of the circuit breaker, an adjustable mounting plate of the appropriate depth is used. A reinforcing beam is installed at the bottom of the mounting plate to increase strength and prevent deformation. Figure 3 (Right side of the view). This design frees up more space for branch copper busbars within the cabinet, and the cabinet depth is reduced from 1000mm to 800mm, significantly reducing the amount of sheet metal and copper busbars used and saving costs. However, due to factors such as circuit breaker brand, frame rating, and current rating, the depth of the circuit breaker mounting plate needs to be specifically designed according to the size of the circuit breaker for the same project to maximize the utilization of the cabinet space. This design is cumbersome, cannot be standardized, and is time-consuming, making it impossible to meet tight delivery schedules.

[0023] Please refer to Figure 4-5 An adjustable-depth circuit breaker mounting plate assembly includes side beams 1 symmetrically arranged for mounting on a bracket. The side beams 1 are provided with a plurality of first mounting holes 2 along their length. At least two sliders 3 are provided corresponding to the first mounting holes 2. The sliders 3 are connected to a support beam 4 for mounting the circuit breaker.

[0024] This application standardizes two side beams, two switch support beams, and four movable sliders to form a circuit breaker mounting plate assembly with controllable depth. This assembly can be prefabricated in a standardized and mass production manner, eliminating redundant design, improving efficiency, shortening the production cycle, saving management and installation costs, and enhancing the competitiveness of complete power distribution products.

[0025] In this embodiment, the surface of the support beam 4 is provided with a plurality of second mounting holes 5 for installing circuit breakers at different locations.

[0026] In this embodiment, the inner side of the side beam 1 is provided with a surrounding portion 6 for limiting the slider 3.

[0027] In this embodiment, the side beam 1 is bent on the outside and has a mounting part 7 for fixing to the bracket.

[0028] In this embodiment, the side beam 1 is made of 2.0mm galvanized steel sheet.

[0029] In this embodiment, the first mounting hole 2 and the second mounting hole 5 are oblong holes.

[0030] In this embodiment, the support beam 4 is fixed to the side beam 1 by bolts and nuts.

[0031] This application mainly consists of three parts: First, two 75mm wide side beams with end caps, made of 2.0mm galvanized steel sheets, with a 20mm folded edge and 7.2mm self-tapping screw holes at both ends, to connect the front upright and the side center upright. The flat surface of these beams has two rows of 9mm large and 70mm long slotted holes. Second, two switch support beams, each 50mm wide and 50mm high, with a length specified according to the cabinet width, have four 9mm large and small holes at both ends, spaced 25mm apart, and a 7.2mm self-tapping screw hole in the middle. Third, four movable sliders, each 10mm thick, 70mm long and 50mm wide, with four 9mm through holes at the flat surface, also spaced 25mm apart, and a 5.2mm through hole in the middle.

[0032] Installation and Usage: Fix the two side beams with end caps between the front and side center columns. Match the four sliders and two switch support beams, and tighten them with self-tapping screws into the self-tapping holes in the middle of the switch support beams. This creates two sets of movable switch support beams. Slide them into the folded edges of the two side beams one after the other. Adjust the depth of the switch support plate and the distance between the two plates according to the position of the fixing holes on the bottom edge of the circuit breaker. Finally, use M8*25 bolts, passing through the two rows of waist holes in the side beams, the four 9mm through holes in the sliders, and the 9mm openings at both ends of the switch support plate, and tighten with nuts. The installation of this depth-adjustable circuit breaker mounting plate assembly is now complete. Secure it to the circuit breaker through the waist holes on the switch support beams.

[0033] The standard parts used in the mass-producible mounting plate assembly of this application are kept in stock, reducing the production cycle and improving installation efficiency. Furthermore, with the circuit breaker installed securely and reliably, the entire assembly allows for more installation space for the copper busbars within the cabinet when the cabinet size is limited, thus saving on copper busbar usage and resulting in significant cost reduction and efficiency improvement.

[0034] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A depth-adjustable circuit breaker mounting plate assembly, characterized in that, It includes side beams (1) for mounting on a bracket and arranged symmetrically. The side beams (1) are provided with a plurality of first mounting holes (2) along the length direction. At least two sliders (3) are provided for each first mounting hole (2). The sliders (3) are connected to a support beam (4) for mounting a circuit breaker.

2. The depth-adjustable circuit breaker mounting plate assembly according to claim 1, characterized in that: The surface of the support beam (4) is provided with a plurality of second mounting holes (5) for installing circuit breakers in different positions.

3. The depth-adjustable circuit breaker mounting plate assembly according to claim 2, characterized in that: The inner side of the side beam (1) is provided with a surrounding part (6) for limiting the slider (3).

4. The depth-adjustable circuit breaker mounting plate assembly according to claim 1, characterized in that: The side beam (1) is bent on the outside and has a mounting part (7) for fixing to the bracket.

5. The depth-adjustable circuit breaker mounting plate assembly according to claim 1, characterized in that: The side beam (1) is made of 2.0 galvanized steel plate.

6. The depth-adjustable circuit breaker mounting plate assembly according to claim 2, characterized in that: The first mounting hole (2) and the second mounting hole (5) are elongated holes.

7. The depth-adjustable circuit breaker mounting plate assembly according to claim 6, characterized in that: The support beam (4) is fixed to the side beam (1) by bolts and nuts.

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