Photovoltaic fuse
By designing exposed welding positions and threaded connections in photovoltaic fuses, the problem of difficult welding of existing fuses is solved, achieving more efficient welding operations and firmer pad fixation.
Patent Information
- Application Number
- CN202420018393.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-01-04
AI Technical Summary
The welding position of the existing fuse pad and the fuse pipe is on the inside, which makes it difficult to weld and the welding rod needs to be tilted at a high angle, making it inconvenient to operate.
The design has hollow grooves and recesses at both ends of the fuse pipe, and the circular plate and the pads are installed. The pads can be welded to the circular plates, and the welding position is exposed to the outside. The pads and conductive plates are threaded to simplify the welding process.
It reduces welding difficulty and improves welding efficiency. The welding rod does not require a large angle inclination, which makes the operation more convenient and enhances the fixation of the pad.
Smart Images
Figure CN222338216U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuses, in particular to a photovoltaic fuse. Background Art
[0002] A fuse is an electrical device that uses a metal conductor as a melt and is connected in series in a circuit. When an overload or short-circuit current passes through the fuse, it heats up and melts, thereby disconnecting the circuit. It is widely used as a protective device in power systems, various electrical equipment and household appliances. The fuse includes a fuse tube, a melt, a conductive plate and a gasket. The gasket is arranged between the fuse tube and the conductor to facilitate heat conduction of the conductor.
[0003] The existing fuse liner is generally directly welded to the melting tube. Since the welding position between the liner and the melting tube is on the inside, the welding rod needs to be tilted at a large angle for welding, and it is difficult to observe the welding position, resulting in great difficulty and inconvenience in welding. Utility Model Content
[0004] The purpose of the utility model is to provide a photovoltaic fuse to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic fuse, including a fuse tube, both ends of the fuse tube are provided with empty grooves, the edges of the two empty grooves are provided with recessed portions, and circular plates are installed inside the two empty grooves, and a gasket is provided on the side of the circular plate away from the fuse tube, and a through hole is penetrated through the gasket.
[0006] As a preferred solution of the utility model, the diameter of the circular plate is larger than the diameter of the through hole.
[0007] As a preferred solution of the utility model, an L-shaped conductive plate is fixedly mounted on one side of the gasket away from the circular plate.
[0008] As a preferred solution of the utility model, a plurality of second threaded holes are provided on the L-shaped conductive plate, the gasket and the melting tube, and the internal threads of the plurality of second threaded holes are connected with second screws.
[0009] As a preferred solution of the utility model, the L-shaped conductive plate and the circular plate are both provided with a first threaded hole, and the internal thread of the first threaded hole is connected with a first screw.
[0010] As a preferred solution of the utility model, a connecting groove is provided on the L-shaped conductive plate.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model, through the provision of a circular plate, enables the gasket to be welded to the circular plate without being welded to the melting tube, thereby exposing the welding position to the outside, and the welding rod can be welded without being tilted at a large angle, which makes it convenient for the staff to weld the gasket and improves the welding efficiency, and the provision of a recessed portion facilitates the welding of the circular plate to the melting tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the utility model after the liner is welded;
[0014] Figure 3 This is a schematic diagram of the structure of the utility model after the circular plate is welded;
[0015] Figure 4 It is an exploded view of the utility model.
[0016] In the figure: 1, melting tube; 2, L-shaped conductive plate; 3, connecting groove; 4, first screw; 5, second screw; 6, round plate; 7, gasket; 8, first threaded hole; 9, second threaded hole; 10, recessed portion; 11, empty groove; 12, through hole. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figures 1 to 4 The utility model provides a technical solution: a photovoltaic fuse, including a fuse tube 1, both ends of the fuse tube 1 are provided with empty grooves 11, the edges of the two empty grooves 11 are provided with recessed portions 10, the recessed portions 10 are convenient for workers to weld the circular plate 6 to the fuse tube 1, and the circular plate 6 is installed inside the two empty grooves 11, and a gasket 7 is provided on the side of the circular plate 6 away from the fuse tube 1, the gasket 7 can be welded to the circular plate 6, so that the welding position is exposed to the outside, the welding rod can be welded without tilting at a large angle, reducing the difficulty of welding, and facilitating the workers to weld the gasket 7, and a through hole 12 is penetrated by the gasket 7, and the through hole 12 is convenient for workers to weld the gasket 7 to the circular plate 6.
[0019] The diameter of the circular plate 6 is greater than the diameter of the through hole 12 .
[0020] An L-shaped conductive plate 2 is fixedly mounted on one side of the gasket 7 away from the circular plate 6 .
[0021] Among them, multiple second threaded holes 9 are provided on the L-shaped conductive plate 2, the gasket 7 and the melting tube 1, and the internal threads of the multiple second threaded holes 9 are connected with second screws 5. The second screws 5 are used to fix the L-shaped conductive plate 2 on the melting tube 1, and at the same time, the gasket 7 can be reinforced to make the gasket 7 more firmly fixed.
[0022] Among them, the L-shaped conductive plate 2 and the circular plate 6 are both provided with a first threaded hole 8, and the internal thread of the first threaded hole 8 is connected with a first screw 4, which is used to connect the L-shaped conductive plate 2 and the circular plate 6 to make the L-shaped conductive plate 2 more firmly installed.
[0023] The L-shaped conductive plate 2 is provided with a connection groove 3, and the connection groove 3 facilitates the connection between the L-shaped conductive plate 2 and an external device.
[0024] Specifically, during assembly, the circular plate 6 is placed into the empty groove 11, and the circular plate 6 and the melting tube 1 are welded at the recessed portion 10. After the circular plate 6 is welded, the gasket 7 is taken out, and the second threaded hole 9 on the gasket 7 is aligned with the second threaded hole 9 on the melting tube 1. The second screw 5 can be screwed into part of the second threaded hole 9 to pre-fix the gasket 7 for easy welding, so that the gasket 7 is close to the circular plate 6, and the gasket 7 and the circular plate 6 are welded at the through hole 12. After the gasket 7 is welded, the L-shaped conductive plate 2 is taken out, and the L-shaped conductive plate 2 is fixed to the melting tube 1 by the second screw 5, and the L-shaped conductive plate 2 is fixed to the circular plate 6 by the first screw 4, thereby reinforcing the L-shaped conductive plate 2.
[0025] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.
[0027] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A photovoltaic fuse, comprising a fuse tube (1), characterized in that: Both ends of the melting tube (1) are provided with hollow grooves (11), the edges of the two hollow grooves (11) are provided with recessed portions (10), and circular plates (6) are installed inside the two hollow grooves (11), a liner (7) is provided on the side of the circular plate (6) away from the melting tube (1), and a through hole (12) is penetrated through the liner (7).
2. A photovoltaic fuse according to claim 1, characterized in that: The diameter of the circular plate (6) is greater than the diameter of the through hole (12).
3. A photovoltaic fuse according to claim 2, characterized in that: An L-shaped conductive plate (2) is fixedly mounted on the side of the gasket (7) away from the circular plate (6).
4. A photovoltaic fuse according to claim 3, characterized in that: The L-shaped conductive plate (2), the gasket (7) and the melting tube (1) are all provided with a plurality of second threaded holes (9), and the internal threads of the plurality of second threaded holes (9) are connected with second screws (5).
5. A photovoltaic fuse according to claim 3, characterized in that: The L-shaped conductive plate (2) and the circular plate (6) are both provided with a first threaded hole (8), and the first screw (4) is connected to the inner thread of the first threaded hole (8).
6. A photovoltaic fuse according to claim 3, characterized in that: The L-shaped conductive plate (2) is provided with a connecting groove (3).