Threaded fuse

Abstract

The utility model relates to the technical field of fuses, and specifically discloses a threaded fuse comprising an insulating tube; the conductive assembly comprises a first connecting terminal which is installed at the position of a pipe opening at one end of the insulating pipe in a threaded mode, a second connecting terminal which is installed at the position of a pipe opening at the other end of the insulating pipe in a threaded mode, and a melt, wherein the two ends of the melt are in threaded connection with the connecting terminals respectively. The threaded fuse provided by the utility model can effectively solve the problems of inconvenient manual assembly and high scrap cost caused by the adoption of a welding fixing structure in the conventional fuse.

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, and in particular to a threaded fuse. Background Technology

[0002] The structure of a fuse mainly includes an insulating tube, a fusible element located inside the insulating tube, and a connecting terminal installed at the end of the insulating tube. The connecting terminal is electrically connected to the connecting tube by welding.

[0003] Existing welded fixing structures have the following problems and disadvantages:

[0004] ① Welding and fixing require welding equipment to achieve assembly, which is difficult to do manually;

[0005] ② Welded parts can only be used once and cannot be reused after disassembly and assembly. They must be scrapped, resulting in high costs.

[0006] Therefore, existing fuses need to be improved to solve the problems of inconvenient manual assembly and high scrap costs caused by their welded fixing structure.

[0007] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0008] One objective of this invention is to provide a threaded fuse that effectively solves the problems of inconvenient manual assembly and high scrap costs caused by the welding fixing structure of existing fuses.

[0009] To achieve the above objectives, this utility model provides a threaded fuse, comprising:

[0010] Insulating tube;

[0011] A conductive component, comprising a first connecting terminal threadedly installed at the opening of one end of the insulating tube, a second connecting terminal threadedly installed at the opening of the other end of the insulating tube, and a molten body threadedly connected to one of the connecting terminals at each end.

[0012] Optionally, the melt has a cylindrical structure, and the cylindrical surface of the melt is provided with external threads for threaded connection with the two connecting terminals.

[0013] Optionally, the melt may be provided with several thinning grooves at its middle position.

[0014] Optionally, each of the thinning grooves has an annular groove structure.

[0015] Optionally, both of the connecting terminals include a conductive portion electrically connected to the melt and an insulating portion threadedly connected to the insulating pipe.

[0016] Optionally, the conductive part is threadedly connected to the insulating part.

[0017] Optionally, the conductive part and the insulating part are connected by in-mold injection molding.

[0018] Optionally, one end face of the conductive part is provided with an internal threaded hole that is threadedly connected to the melt.

[0019] Optionally, the other end face of the conductive part is provided with a hollow connecting tube or a disassembly / reassembly groove for disassembly / reassembly tools to enter.

[0020] Optionally, the disassembly slot can be a slotted slot, a cross slot, or an internal hexagonal slot.

[0021] The beneficial effects of this utility model are as follows: It provides a threaded fuse, in which the connecting terminal and the insulating tube are threadedly connected, and the fusible element and the connecting terminal are threadedly connected. The assembly and disassembly operations are achieved by rotation, without the need for professional welding equipment. This not only improves the convenience of assembly and disassembly, but also allows for multiple assembly and disassembly, improving maintainability and the reusability of the components.

[0022] Therefore, the threaded fuse provided by this utility model effectively solves the problems of inconvenient manual assembly and high scrap cost caused by the welding fixing structure of existing fuses. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of a threaded fuse with a hollow connecting tube in the conductive part provided for an embodiment;

[0025] Figure 2 A schematic diagram of a threaded fuse with a disassembly groove in the conductive part provided in an embodiment.

[0026] In the picture:

[0027] 1. Insulating tube;

[0028] 2. Conductive component; 201a, first connecting terminal; 201b, second connecting terminal; 2011, conductive part; 2011a, disassembly groove; 2012, insulating part; 202, melt; 2021, thinning groove. Detailed Implementation

[0029] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0030] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0031] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0032] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0033] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0034] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0035] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0036] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0037] This utility model provides a threaded fuse, which is suitable for interrupting the current when an overload or short circuit occurs in the circuit to prevent electrical equipment damage and fire and other safety accidents. It can effectively solve the problems of inconvenient manual assembly and high scrap cost caused by the welding and fixing structure of existing fuses.

[0038] See Figure 1 or Figure 2 This embodiment provides a threaded fuse, including an insulating tube 1 and a conductive component 2.

[0039] The conductive component 2 includes a first connecting terminal 201a threadedly installed at the pipe opening position at one end of the insulating tube 1, a second connecting terminal 201b threadedly installed at the pipe opening position at the other end of the insulating tube 1, and a molten metal 202 with one of the connecting terminals threadedly connected to each end.

[0040] The threaded fuse provided in this embodiment has a threaded connection between the connecting terminal and the insulating tube 1, and a threaded connection between the fusible element 202 and the connecting terminal. The assembly and disassembly operations are achieved by rotation, without the need for professional welding equipment. This not only improves the convenience of assembly and disassembly, but also allows for multiple assembly and disassembly, improving maintainability and the reusability of the components.

[0041] Therefore, the threaded fuse provided by this utility model effectively solves the problems of inconvenient manual assembly and high scrap cost caused by the welding fixing structure of existing fuses.

[0042] In this embodiment, the melt 202 has a cylindrical structure, and the cylindrical surface of the melt 202 is provided with external threads for threaded connection with the two connecting terminals. The melt 202 is machined into a screw shape, which can be adapted to connecting terminals with various thread hole depths, further improving the versatility of the melt 202.

[0043] Optionally, a plurality of thinning grooves 2021 are provided at the middle position of the melt 202, and the position of the thinning grooves 2021 is the preset melting point. Furthermore, each of the thinning grooves 2021 has an annular groove structure, which is beneficial to improve the uniformity of force at various points when the melt 202 melts.

[0044] In this embodiment, both connecting terminals include a conductive portion 2011 electrically connected to the molten metal 202 and an insulating portion 2012 threadedly connected to the insulating tube 1. Optionally, the conductive portion 2011 and the insulating portion 2012 are threadedly connected to each other, further improving the flexibility of assembly and disassembly.

[0045] Of course, in some other embodiments, the conductive part 2011 and the insulating part 2012 may also be an in-mold injection molding connection structure, and this embodiment does not limit this.

[0046] In this embodiment, one end face of the conductive part 2011 is provided with an internal threaded hole for threaded connection with the melt 202, and the other end face of the conductive part 2011 is provided with a hollow connecting pipe (such as...). Figure 1 (as shown) or a disassembly / removal slot 2011a for disassembly / removal tools to enter (as shown) Figure 2 (As shown).

[0047] Optionally, the disassembly groove 2011a is a flathead groove, a Phillips head groove, or an internal hexagonal groove, so that flathead screwdrivers, Phillips head screwdrivers, and hexagonal wrenches can enter the disassembly groove 2011a and then twist the conductive part 2011.

[0048] In summary, the threaded fuse provided by this utility model has the following advantages:

[0049] ① Easy to assemble and maintain: The threaded connection makes it easy to connect and disconnect the connecting terminal and the insulating tube 1, and the molten element 202 and the connecting terminal, thus improving the ease of assembly and disassembly;

[0050] ② Reusability: Since the threaded connection allows for multiple disassembly and assembly, the connection terminal and fuse 202 can be reused after maintenance or replacement, reducing waste and lowering costs.

[0051] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A threaded fuse, characterized in that, include: Insulating tube (1); The conductive component (2) includes a first connecting terminal (201a) threadedly installed at the pipe opening position at one end of the insulating tube (1), a second connecting terminal (201b) threadedly installed at the pipe opening position at the other end of the insulating tube (1), and a molten body (202) with one of the connecting terminals threadedly connected to each end.

2. The threaded fuse according to claim 1, characterized in that, The melt (202) has a cylindrical structure, and the cylindrical surface of the melt (202) is provided with external threads for threaded connection with the two connecting terminals.

3. The threaded fuse according to claim 2, characterized in that, The melt (202) has several thinning grooves (2021) in the middle position.

4. The threaded fuse according to claim 3, characterized in that, Each of the aforementioned thinning grooves (2021) has an annular groove structure.

5. The threaded fuse according to claim 1, characterized in that, Both of the aforementioned connection terminals include a conductive part (2011) electrically connected to the melt (202) and an insulating part (2012) threadedly connected to the insulating tube (1).

6. The threaded fuse according to claim 5, characterized in that, The conductive part (2011) is threadedly connected to the insulating part (2012).

7. The threaded fuse according to claim 5, characterized in that, The conductive part (2011) and the insulating part (2012) are connected by in-mold injection molding.

8. The threaded fuse according to claim 5, characterized in that, The end face of one end of the conductive part (2011) is provided with an internal thread hole that is threadedly connected to the melt (202).

9. The threaded fuse according to claim 8, characterized in that, The other end face of the conductive part (2011) is provided with a hollow connector or a disassembly / reassembly groove (2011a) for disassembly / reassembly tools to enter.

10. The threaded fuse according to claim 9, characterized in that, The disassembly / reassembly slot (2011a) is a slotted slot, a cross slot, or an internal hexagonal slot.

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