Fuse fixing structure in electric cabinet

Abstract

The utility model belongs to the technical field of fuse fixing components, and particularly relates to a fuse fixing structure in an electric cabinet, which comprises a mounting piece, a fuse body and a locking piece, the mounting piece comprises a mounting rack, a plurality of locking studs are horizontally fixed on the vertical end face of the rear side of the mounting rack and are used for fixing the mounting rack in the electric cabinet, and the locking piece is used for locking the fuse body. Sliding frames are horizontally fixed to the two ends of the top face of the mounting frame, a sliding strip plate is horizontally fixed to the front side of the middle of the mounting frame, assembling frames are vertically fixed to the two ends of the fuse body, sliding strips are horizontally fixed to the top faces of the assembling frames and horizontally assembled in the sliding frames in a sliding mode, and locking pieces are horizontally assembled to the two sides of the sliding strip plate in a sliding mode. And the locking piece is used for locking the assembled fuse body on the mounting piece. According to the utility model, the fuse body is slidably mounted on the mounting rack, so that the mounting steps are reduced, and the mounting flexibility is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of fuse fixing components, specifically relating to a fuse fixing structure inside an electrical cabinet. Background Technology

[0002] A fuse is an electrical device used for circuit protection, primarily to prevent damage caused by overloads and short circuits. It protects electrical equipment and lines by automatically disconnecting the circuit when the current exceeds a safe value. Fuses are widely used in various power equipment and control systems to ensure circuit safety and stability. However, the installation and fixing methods of fuses directly affect their ease of use and maintenance efficiency.

[0003] The existing announcement number CN203536748U, entitled "A Fuse Mounting Structure for a Distribution Cabinet," includes an insulating mounting plate and a fuse. The insulating mounting plate has at least two through holes, through which terminals are inserted. The ends of the terminals are threaded. The fuse includes a fuse body and copper busbars fixed to both ends of the fuse body. Mounting holes are formed on the copper busbars, through which the fuse is connected to the terminals and secured with nuts. This structure, by leading out the terminals through the insulating mounting plate and connecting the copper busbars to both ends of the fuse body, and securing the fuse to the terminals with nuts, is not only simple in structure and space-saving, but also provides reliable contact, with no exposed terminals, thus offering high safety.

[0004] However, this installation structure still has certain limitations in practical applications. First, fuse fixing typically relies on pre-locked mounting brackets, with bolts used to secure the fuse to the brackets. Each time a fuse is installed or replaced, the bolts need to be removed and reinstalled, making the installation process cumbersome and affecting efficiency. Furthermore, bolt fixing requires tools, increasing installation complexity and potentially causing inconvenience during maintenance, especially in applications requiring frequent fuse replacements, where the traditional fixing method is particularly inefficient. On the other hand, because bolt fixing places certain requirements on the size and structure of the fuse, different fuse specifications may not be interchangeable, reducing system compatibility. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a fuse fixing structure in the electrical cabinet, which can reduce the installation steps, improve the installation flexibility, and ensure the stability and compatibility of the fuse in the electrical cabinet.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fuse fixing structure inside an electrical cabinet includes a mounting component, a fuse body, and locking components. The mounting component includes a mounting bracket, with multiple locking studs horizontally fixed on the vertical end face of the rear side of the mounting bracket. The multiple locking studs are used to fix the mounting bracket inside the electrical cabinet. Sliding frames are horizontally fixed at both ends of the top surface of the mounting bracket, and a sliding strip is horizontally fixed on the front side of the middle part of the mounting bracket. Assembly frames are vertically fixed at both ends of the fuse body, and a sliding strip is horizontally fixed on the top surface of the assembly frame. The sliding strip is horizontally slidably assembled in the sliding frame. Locking components are horizontally slidably assembled on both sides of the sliding strip, and the locking components are used to lock the assembled fuse body on the mounting component.

[0008] Furthermore, the locking component includes a sliding frame, a screw hole plate, and a push rod. The sliding frame is horizontally slidably assembled on the slide plate, and a screw hole plate is fixed on the front end face of the sliding frame. A push rod is horizontally arranged on one side of the screw hole plate.

[0009] Furthermore, a screw is installed through a horizontal thread in the screw hole plate, and the end of the screw is rotatably connected to the end of the push rod.

[0010] Furthermore, a baffle is vertically fixed to the center of the front end face of the slide plate, and springs are horizontally fixed to both sides of the baffle, with the ends of the springs on both sides of the baffle respectively fixed to adjacent screw hole plates.

[0011] Furthermore, a torsion plate is horizontally provided on the other end face of the push rod, and a rotating column is horizontally fixed at one end of the torsion plate, and the rotating column is rotatably connected to the end of the push rod.

[0012] Furthermore, a socket plate is horizontally fixed in the middle of the assembly frame, and a socket hole is horizontally opened through the middle of the socket plate.

[0013] Furthermore, the torsion plate penetrates the socket setting of the socket plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, traditional fuse fixing methods in existing technologies rely on bolts, resulting in cumbersome installation steps, especially during replacement or maintenance, which requires repeated bolt removal and disassembly, leading to low installation efficiency. This invention, however, innovatively simplifies the installation and disassembly of the fuse body into a sliding assembly by employing a mounting bracket and sliding plate design, significantly reducing installation time. The fuse body can be quickly installed by the horizontal sliding of the sliding plate within the frame, and the locking elements on both sides of the sliding plate precisely lock the fuse position, ensuring its stability. This improves the flexibility and efficiency of the installation process, reducing the complexity of tool use and manual operation.

[0016] Secondly, existing bolt-fixing methods may cause the fuse body to loosen during long-term use, affecting the stability of the electrical connection. This invention, by introducing a sliding plate and locking element in conjunction with the restoring force provided by a spring, ensures that the fuse body is firmly locked during installation, preventing loosening or displacement during long-term operation. The structural design of the screw hole plate and push rod of the locking element makes the locking process more reliable, avoiding the poor contact problems caused by loose bolts in traditional bolt-fixing methods.

[0017] Furthermore, while the fuse mounting structure for distribution cabinets mentioned in the background art saves space and ensures reliable contact, its reliance on bolted connections limits the convenience and flexibility of installation and disassembly. This invention, by introducing a torsion plate and rotating post design, further improves the precision of the locking process, ensuring that the fuse body is securely fixed to the mounting bracket after installation. Moreover, replacement does not require disassembling the complex bolted structure, facilitating quick maintenance and replacement.

[0018] Furthermore, the structural design of this utility model takes into account the compatibility requirements of different fuse models. The design of the mounting bracket and locking components makes the installation of the fuse more universal and compatible with fuse bodies of different specifications, solving the problem of poor compatibility in traditional designs. The combination of the assembly frame and the socket plate makes the installation and removal of the fuse easier, providing greater flexibility and adaptability, and further improving the overall application range of the system. 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 schematic diagram of the overall structure of this utility model in an disassembled state;

[0021] Figure 3 This is a structural schematic diagram of the mounting component of this utility model in an disassembled state;

[0022] Figure 4 This is a schematic diagram of the locking component of this utility model in an disassembled state;

[0023] Figure 5 This is a schematic diagram of the fuse body of this utility model in its disassembled state.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Mounting component; 11. Mounting bracket; 111. Locking stud; 12. Slide frame; 13. Slide bar plate; 131. Baffle; 14. Spring; 2. Fuse body; 21. Assembly frame; 22. Slide bar; 23. Insertion plate; 3. Locking component; 31. Slide groove frame; 32. Screw hole plate; 33. Screw; 34. Push rod; 35. Torsion plate; 351. Rotary column. Detailed Implementation

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0027] refer to Figures 1-5 As shown, a fuse fixing structure inside an electrical cabinet includes a mounting component 1, a fuse body 2, and a locking component 3. The mounting component 1 includes a mounting bracket 11, with multiple locking studs 111 horizontally fixed on the vertical end face of the rear side of the mounting bracket 11. These locking studs 111 are used to fix the mounting bracket 11 inside the electrical cabinet. The mounting bracket 11 is made of high-quality steel (e.g., Q235), possessing high strength and stability to ensure secure fixing inside the electrical cabinet. Its design height adapts to most common electrical cabinet sizes, accommodating the installation requirements of different electrical equipment. Sliding frames 12 are horizontally fixed at both ends of the top surface of the mounting bracket 11. The sliding frames 12 are made of aluminum alloy (e.g., 6063 aluminum alloy), exhibiting good corrosion resistance and processing performance. The design of the sliding frames 12 allows the fuse body 2 to slide stably and connect precisely.

[0028] A sliding plate 13 is horizontally fixed to the front middle section of the mounting bracket 11. The sliding plate 13 is made of high-strength engineering plastic (such as PA66), which has good compressive strength and wear resistance, and ensures that it is not subject to electrical interference during use. Both ends of the fuse body 2 are vertically fixed with assembly frames 21. The assembly frames 21 are made of high-quality steel plates (such as SPCC cold-rolled steel plates) and have a sprayed coating to improve corrosion resistance and ensure long-term structural stability and reliability. A sliding strip 22 is horizontally fixed to the top surface of the assembly frame 21. The sliding strip 22 is made of high-hardness aluminum alloy (such as 6061 aluminum alloy) to ensure that it is not easily worn during sliding. The sliding strip 22 is horizontally slidably assembled in the sliding frame 12. The mating surfaces of the sliding frame 12 and the sliding strip 22 are precision machined to reduce friction and improve the smoothness of installation and disassembly.

[0029] Locking elements 3 are horizontally slidably assembled on both sides of the slide plate 13. The locking elements 3 are used to lock the fuse body 2 onto the mounting component 1. The locking elements 3 ensure that the fuse body 2 will not shift or fall off during installation, thereby guaranteeing the stability and safety of the electrical system. (Reference) Figure 4As shown, the locking component 3 includes a sliding frame 31, a screw hole plate 32, and a push rod 34. The sliding frame 31 is horizontally slidably assembled on the slide plate 13, and the screw hole plate 32 is fixed on the front end face of the sliding frame 31. The screw hole plate 32 is made of high-strength engineering plastic (such as PA66), which has good wear resistance and aging resistance, ensuring its stability in long-term use. A push rod 34 is horizontally arranged on one side of the screw hole plate 32. The push rod 34 is usually made of stainless steel (such as 304 stainless steel) to increase corrosion resistance and pressure resistance.

[0030] refer to Figure 4 As shown, a screw 33 is installed through a horizontal thread in the screw hole plate 32, and the end of the screw 33 is rotatably connected to the end of the push rod 34. The screw 33 is made of alloy steel (such as 42CrMo) and has been heat-treated to enhance its hardness and wear resistance. The connection between the end of the screw 33 and the push rod 34 is a precision mechanical connection to ensure that there is no loosening during transmission. The screw 33 drives the push rod 34 to move back and forth by rotating, thereby adjusting the position of the locking element 3 and ensuring that the fuse body 2 is stably locked during installation.

[0031] refer to Figure 4 As shown, a baffle 131 is vertically fixed to the center of the front end face of the slide plate 13. The baffle 131 is made of aluminum alloy (such as 6063 aluminum alloy) and has undergone anodizing treatment, giving it strong corrosion resistance. Springs 14 are horizontally fixed to both sides of the baffle 131. The springs 14 are made of high-quality stainless steel (such as 302 stainless steel), providing good elasticity and durability. The ends of the springs 14 on both sides of the baffle 131 are respectively fixed to adjacent screw hole plates 32. During use, the springs 14 provide sufficient restoring force to ensure that the locking member 3 can stably push the push rod 34 and effectively lock the fuse body 2.

[0032] refer to Figure 4 As shown, a torsion plate 35 is horizontally arranged on the other end face of the push rod 34. The torsion plate 35 is made of high-strength alloy material (such as A3 steel) and is precision machined to ensure its stability during long-term use. A rotating column 351 is horizontally fixed to one end of the torsion plate 35. The rotating column 351 and the torsion plate 35 are fixed by a mechanical connection to ensure that there is no loosening or instability during rotation. The rotating column 351 is rotatably connected to the end of the push rod 34. The rotation of the rotating column 351 drives the push rod 34 to move horizontally, thereby pushing the locking member 3 to accurately align and fix the fuse body 2.

[0033] refer to Figure 4As shown, a socket plate 23 is horizontally fixed in the middle of the assembly frame 21. The socket plate 23 is made of stainless steel (such as 304 stainless steel), which has good corrosion resistance and strong load-bearing capacity. A socket hole is horizontally opened through the middle of the socket plate 23. The design size of the socket hole matches the twist plate 35 to ensure that the twist plate 35 can be smoothly inserted and the locking operation is accurately completed by rotating the rotating column 351. The structural design of the socket plate 23 fully considers the fixing and disassembly requirements of the fuse body 2, so that the fuse can be installed stably and replaced more easily.

[0034] refer to Figure 4 As shown, the torsion plate 35 penetrates the socket of the socket plate 23. This design allows the torsion plate 35 to provide the necessary mechanical power during locking, resulting in a tighter connection between the socket plate 23 and the locking element 3, thereby further improving the installation stability of the fuse body 2.

[0035] The working principle of this utility model is as follows: When in use, firstly, assemble the mounting component 1 at the installation position of the fuse body 2 inside the electrical cabinet. Then, the locking bolt 111 on the mounting bracket 11 of the mounting component 1 passes through the electrical cabinet. Then, the locking bolt 111 on the mounting bracket 11 is fixed to the electrical cabinet with nuts. When installing the fuse body 2, the screw hole plates 32 on the locking components 3 on both sides of the sliding plate 13 are pulled to slide on the sliding plate 13, compressing the spring 14 to deform. This causes the sliding strips 22 on the top surface of the assembly frame 21 at both ends of the fuse body 2 to slide into the sliding frame 12. Then, the locking components 3 are released. Under the deformation force of the spring 14, the sliding frame 31 pushes the screw hole plates 32 to slide horizontally, causing the torsion plate 35 at the end of the push rod 34 to insert into the insertion plate 23 of the assembly frame 21. The locking ensures that the fuse body 2 remains stable on the mounting component 1, thereby sliding the fuse body 2 on the mounting bracket 11, reducing the installation steps and improving the installation flexibility.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A fuse fixing structure inside an electrical cabinet, characterized in that, The device includes a mounting component (1), a fuse body (2), and a locking component (3). The mounting component (1) includes a mounting bracket (11). Multiple locking studs (111) are horizontally fixed on the vertical end face of the rear side of the mounting bracket (11), and the multiple locking studs (111) are used to fix the mounting bracket (11) inside the electrical cabinet. Sliding frames (12) are horizontally fixed at both ends of the top surface of the mounting bracket (11), and the front side of the middle part of the mounting bracket (11) is horizontally fixed. A sliding plate (13) is fixed. Both ends of the fuse body (2) are vertically fixed with an assembly frame (21), and a sliding strip (22) is horizontally fixed on the top surface of the assembly frame (21). The sliding strip (22) is horizontally slidably assembled in the sliding frame (12). Both sides of the sliding plate (13) are horizontally slidably assembled with the locking member (3), and the locking member (3) is used to lock the fuse body (2) on the mounting member (1).

2. The fuse fixing structure in an electrical cabinet according to claim 1, characterized in that: The locking component (3) includes a sliding frame (31), a screw hole plate (32) and a push rod (34). The sliding frame (31) is horizontally slidably assembled on the slide plate (13), and the screw hole plate (32) is fixed on the front end face of the sliding frame (31). The push rod (34) is horizontally arranged on one side of the screw hole plate (32).

3. The fuse fixing structure in an electrical cabinet according to claim 2, characterized in that: A screw (33) is installed through the horizontal thread in the screw hole plate (32), and the end of the screw (33) is rotatably connected to the end of the push rod (34).

4. The fuse fixing structure in an electrical cabinet according to claim 3, characterized in that: A baffle (131) is vertically fixed in the middle of the front end face of the slide plate (13), and springs (14) are horizontally fixed on both sides of the baffle (131), and the ends of the springs (14) on both sides of the baffle (131) are respectively fixed on adjacent screw hole plates (32).

5. The fuse fixing structure in an electrical cabinet according to claim 3, characterized in that: A torsion plate (35) is horizontally arranged on the other end face of the push rod (34), and a rotating column (351) is horizontally fixed at one end of the torsion plate (35), and the rotating column (351) is rotatably connected to the end of the push rod (34).

6. The fuse fixing structure in an electrical cabinet according to claim 5, characterized in that: The assembly frame (21) is horizontally fixed with a socket plate (23) in the middle, and the socket plate (23) has a horizontal through hole in the middle.

7. The fuse fixing structure in an electrical cabinet according to claim 6, characterized in that: The torsion plate (35) passes through the insertion hole of the insertion plate (23).

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