Buckle for connecting melts in parallel
By using a snap-fit structure that connects the molten metal in parallel, the problem of uneven arc caused by welding errors is solved, thus improving the service life of the fuse.
Patent Information
- Application Number
- CN202520520492.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing welding connections between molten metal and metal parts have errors and poor weld quality, making it difficult for the molten metal to melt simultaneously under overload or short circuit conditions. The uneven arc increases the difficulty of extinguishing the arc, and the difference in neck size leads to a reduction in service life.
The system employs a snap-fit structure that connects the molten elements in parallel. This is achieved through components such as a fixing plate, guide rod, rivets, rotating handle, clamping plate, spring, adjusting threaded rod, and wing nut. This ensures that the break potentials are the same, balances the arc, and prevents the smaller, narrower molten element from breaking off first.
This allows the fuse to melt simultaneously in case of overload or short circuit, reducing uneven arcing and extending the service life of the fuse.
Smart Images
Figure CN223927345U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of melt assembly, concretely relates to a buckle that melts are connected in parallel. BACKGROUND
[0002] The fuse is a kind of overcurrent protection device, is composed of insulating shell, melt and arc extinguishing medium etc., its core function is through the fusing action of melt, when the overload or short circuit of circuit occurs, quickly cut off current, protect electrical equipment and line from damage, melt is the core component of fuse, usually by low melting point, high electric conductivity metal material is made, is designed into specific shape, its cross section and thermal characteristics determine the action characteristic of fuse, under normal operating conditions, melt needs to stably bear rated current, keeps low resistance and low heat, when overload or short circuit, melt is cut off by itself fusing, the arc produced when melt fusing is cooled and divided by arc extinguishing medium, accelerates to extinguish, prevents arc reignition.
[0003] Generally, melt is connected together by welding with metal piece, in the melt manufacturing process, there is certain error in each narrow neck, simultaneously, it is difficult to guarantee the quality of weld in welding process, and the connection between melt and metal piece is prone to have larger resistance difference due to the poor quality of narrow neck manufacturing error and weld, when passing through overload current or short circuit current, melt is difficult to melt simultaneously, and the time difference exists in arc generation, which is prone to cause potential difference at the fracture between each melt, lead to unbalanced arc, increase arc burning time, increase arc extinguishing difficulty, simultaneously, the melt with smaller narrow neck size is prone to be disconnected first in use, the passing current of remaining melt increases, and the service life of fuse is reduced, in view of the above problems, the buckle that melts are connected in parallel is provided to solve the problems. UTILITARIAN CONTENT
[0004] To solve the above technical problems, a buckle that melts are connected in parallel is provided, which solves the above problems that generally, melt is connected together by welding with metal piece, in the melt manufacturing process, there is certain error in each narrow neck, simultaneously, it is difficult to guarantee the quality of weld in welding process, and the connection between melt and metal piece is prone to have larger resistance difference due to the poor quality of narrow neck manufacturing error and weld, when passing through overload current or short circuit current, melt is difficult to melt simultaneously, and the time difference exists in arc generation, which is prone to cause potential difference at the fracture between each melt, lead to unbalanced arc, increase arc burning time, increase arc extinguishing difficulty, simultaneously, the melt with smaller narrow neck size is prone to be disconnected first in use, the passing current of remaining melt increases, and the service life of fuse is reduced.
[0005] In order to achieve the above object, the utility model discloses the technical scheme that a buckle is parallelly connected to the melt, comprising the fuse metal piece, the inside upper and lower ends of fuse metal piece are all fixedly connected with the melt, the downside of the melt of lower end is slidably connected with the fixed plate, the upside front end of fixed plate is fixedly connected with the guide rod, the left and right sides of guide rod are all fixedly connected with the rivet, the surface of two rivets is all rotatably connected with the rotating handle, the rear side of two rotating handles is all fixedly connected with the clamping plate, the inside center position of two clamping plates is fixedly connected with the spring, the upside of guide rod is fixedly connected with the adjusting screw rod, the surface lower end of adjusting screw rod is slidably connected with the sliding plate, and the surface upper end of adjusting screw rod is threadedly connected with the butterfly nut.
[0006] Preferably, the two clamping plates are symmetrically arranged along the up-down direction.
[0007] Preferably, the downside of the lower clamping plate abuts against the upside of the lower melt, and the upside of the upper clamping plate abuts against the downside of the upper melt.
[0008] Preferably, the outside of the fuse metal piece is fixedly connected with a connecting plate.
[0009] Preferably, a plurality of fuse holes are formed through the upside of the melt.
[0010] Preferably, the rear end of the side of the clamping plate away from the spring is provided with an anti-skid groove.
[0011] Preferably, the rear end of the side of the fixed plate and the sliding plate close to the rivet is provided with an anti-skid groove.
[0012] Compared with the prior art, the utility model has the advantages that the fixed plate, the guide rod, the rivet, the rotating handle, the clamping plate, the spring, the adjusting screw rod, the sliding plate and the butterfly nut can effectively parallelly connect adjacent melts, if the melts cannot be simultaneously fused due to neck error and welding error, the parallel melt ensures that the potentials of the melt breaking points are the same, prevents potential difference, effectively balances the electric arc, reduces the arc burning time, reduces the arc extinguishing difficulty, effectively balances the passing current of the melt through parallel connection, prevents the melt with small neck size from being disconnected first during use, avoids the increase of the passing current of the remaining melt, and effectively improves the service life of the fuse. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 is Figure 1 a local enlarged schematic diagram of position A.
[0015] Reference numerals in the drawing are:
[0016] 1, fuse metal piece; 2, fuse; 3, fuse hole; 4, fixed plate; 5, guide rod; 6, rivet; 7, rotating handle; 8, clamping plate; 9, spring; 10, adjusting threaded rod; 11, sliding plate; 12, butterfly nut. DETAILED DESCRIPTION
[0017] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art.
[0018] Referring to Figures 1-2 As shown in the figure, a buckle for parallel connection of fuses includes a fuse metal piece 1, a connecting plate is fixedly connected to the outer side of the fuse metal piece 1, a fuse 2 is fixedly connected to the inner side of the fuse metal piece 1 at the upper and lower ends, a plurality of fuse holes 3 are formed through the upper side of the fuse 2, a fixed plate 4 is slidably connected to the lower side of the lower end fuse 2, a guide rod 5 is fixedly connected to the upper side front end of the fixed plate 4, a rivet 6 is fixedly connected to the left and right sides of the guide rod 5, and a rotating handle 7 is rotatably connected to the surface of the two rivets 6.
[0019] The rear side of the two rotating handles 7 is fixedly connected to a clamping plate 8, the two clamping plates 8 are symmetrically arranged along the up-down direction, the lower side of the lower end clamping plate 8 abuts against the upper side of the lower end fuse 2, the upper side of the upper end clamping plate 8 abuts against the lower side of the upper end fuse 2, a spring 9 is fixedly connected to the inner side center position of the two clamping plates 8, an anti-slip groove is arranged at the side rear end of the clamping plate 8 away from the spring 9, the friction between the clamping plate 8 and the fuse 2 is improved, the clamping plate 8 can clamp the fuse 2, the parallel connection of the fuse 2 is ensured, the upper side of the guide rod 5 is fixedly connected to an adjusting threaded rod 10, the surface of the lower end of the adjusting threaded rod 10 is slidably connected to a sliding plate 11, an anti-slip groove is arranged at the side rear end of the fixed plate 4 and the sliding plate 11 close to the rivet 6, the friction between the fixed plate 4, the sliding plate 11 and the fuse 2 is improved, a butterfly nut 12 is threadedly connected to the surface of the upper end of the adjusting threaded rod 10, for limiting the position of the sliding plate 11, the clamping plate 8 and the sliding plate 11 can clamp the upper end fuse 2, and the parallel connection of the fuse 2 is completed.
[0020] Working principle: after the melt 2 and the fuse metal piece 1 are welded and fixed, press two rotating handles 7, and pull the sliding plate 11 upwards at the same time, so that the upper side of the fixed plate 4 and the lower side of the melt 2 at the lower end abut, the lower side of the sliding plate 11 and the upper side of the melt 2 at the upper end abut, then release the rotating handle 7, under the elastic force of the spring 9, the two clamping plates 8 abut with the melt 2 respectively, the parallel connection of the two melts 2 is completed, when the fuse is broken, the connection between the melts 2 is realized through the fixed plate 4, the guide rod 5 and the sliding plate 11, the potential at the breaking point is ensured to be the same, and the potential difference is prevented from being generated, meanwhile, through the parallel connection, when the current of the melt 2 with a smaller narrow neck is larger, the current is shunted to another melt 2, the melt 2 with a smaller narrow neck is prevented from being overloaded and disconnected, and the service life of the fuse is effectively improved.
[0021] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only the principles of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed for protection. The protection scope required by the utility model is defined by the appended claims and equivalents thereof.
Claims
1. A parallel connection of fuses comprising a fuse metal piece (1), characterized in that: The inner side of the fuse metal piece (1) is fixedly connected with a fuse body (2) at the upper and lower ends, the lower end of the fuse body (2) is slidably connected with a fixed plate (4), the upper side of the fixed plate (4) is fixedly connected with a guide rod (5), the left and right sides of the guide rod (5) are fixedly connected with rivets (6), the surfaces of the two rivets (6) are rotatably connected with rotating handles (7), the rear sides of the two rotating handles (7) are fixedly connected with clamping plates (8), the inner sides of the two clamping plates (8) are fixedly connected with springs (9) at the central positions, the upper side of the guide rod (5) is fixedly connected with an adjusting threaded rod (10), the surface of the adjusting threaded rod (10) is slidably connected with a sliding plate (11), and the surface of the adjusting threaded rod (10) is threadedly connected with a butterfly nut (12).
2. The snap of claim 1, wherein: The two clamping plates (8) are symmetrically arranged in the up-down direction.
3. The snap of claim 1, wherein: The lower side of the lower end of the clamping plate (8) abuts against the upper side of the lower end of the fuse body (2), and the upper side of the upper end of the clamping plate (8) abuts against the lower side of the upper end of the fuse body (2).
4. The melt-parallel snap of claim 1, wherein: The outer side of the fuse metal piece (1) is fixedly connected with a connecting plate.
5. The melt-parallel snap of claim 1, wherein: The upper side of the fuse body (2) is provided with a plurality of fuse holes (3).
6. The melt-parallel snap of claim 1, wherein: The side, away from the spring (9), of the clamping plate (8) is provided with an anti-skid groove at the rear end.
7. The melt-parallel snap according to claim 1, wherein: The rear end of the side, close to the rivet (6), of the fixed plate (4) and the sliding plate (11) is provided with an anti-skid groove.