Fuse holder with waterproof function

Abstract

This utility model relates to a waterproof fuse holder, characterized by comprising a primary molded body, a connecting terminal, a secondary molded body, and a connecting wire. The connecting terminal includes a plug-in end and a connecting end electrically connected to each other; the connecting end is disposed inside the primary molded body; the plug-in end protrudes from the upper surface of the primary molded body. The secondary molded body includes a molded main body and a molded protective cover. The molded main body covers the primary molded body and the plug-in end of the connecting terminal, and forms a plug-in opening near the plug-in end to expose the plug-in end; the molded protective cover detachably seals the plug-in opening; one end of the connecting wire is inserted into the secondary molded body and the primary molded body and connected to the connecting terminal, and the other end extends out from the secondary molded body.

Description

Technical Field

[0001] This utility model relates to the field of circuit protection devices, and in particular to a fuse holder with waterproof function. Background Technology

[0002] A fuse, also known as a circuit breaker, is a key component that provides overload protection in a circuit. Its working principle is as follows: when the current in the circuit abnormally increases, and the heat generated exceeds the fuse's heat dissipation capacity, the fuse will melt, thus cutting off the current and protecting the circuit's safe operation. With rapid societal development and advancements in scientific research, power sources are gradually shifting from traditional natural energy to electrical energy. This shift leads to a continuous increase in the total power of batteries, consequently requiring frequent fuse replacements under high current conditions.

[0003] However, most existing fuse holders use bolt-fastened or fully enclosed snap-fit ​​structures, which have several problems. First, disassembly is inconvenient, making fuse replacement time-consuming and laborious. Second, heat dissipation is poor, affecting the normal operation of the fuse. Furthermore, in humid environments, the waterproof and moisture-proof performance of the fuse is crucial, a requirement that traditional fuse holders often fail to meet.

[0004] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a new type of fuse holder that is easy to replace the fuse blade and has good waterproof performance.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fuse holder with waterproof function.

[0007] The waterproof fuse holder of this utility model is characterized by comprising:

[0008] One-piece molded body;

[0009] A connecting terminal, comprising a connecting end and a plug-in end that are electrically connected to each other; the connecting end is disposed inside the one-piece molded body, and the plug-in end protrudes from the upper surface of the one-piece molded body;

[0010] A secondary molded body includes a molding body and a molding protective cover. The molding body covers the primary molded body and the plug-in end of the connecting terminal, and forms a plug-in opening near the plug-in end to expose the plug-in end. The molding protective cover is detachably sealed to the plug-in opening.

[0011] A connecting wire, one end of which is an internal connection, is inserted sequentially into the secondary molding body and the primary molding body, and connected to the connecting end of the connecting terminal; the other end is an external connection, extending out of the secondary molding body;

[0012] Furthermore, in the fuse holder described above, the connecting end of the connecting terminal is provided with a snap fastener for crimping the connecting wire.

[0013] Furthermore, in the fuse holder as described above, a sealing ring strip is provided at the edge of the molded body near the insertion opening, and the sealing ring strip and the molded protective cover are pressed against each other to prevent water leakage.

[0014] Furthermore, in the fuse holder as described above, the molding body of the secondary molding body is provided with a connecting wire covering sleeve, the connecting wire covering sleeve covers the connecting wire, and the outer surface of the connecting covering sleeve is provided with a plurality of drainage grooves.

[0015] Furthermore, in the fuse holder described above, the outer wall of the molded body is provided with a body protrusion, and the outer wall of the molded protective cover is provided with a protective cover protrusion.

[0016] The waterproof fuse holder of this utility model has the following beneficial effects:

[0017] 1. It can quickly disassemble and replace fuses, greatly improving maintenance efficiency.

[0018] 2. It has excellent waterproof performance, with a waterproof rating of IP69K, which can effectively prevent water from entering and ensure the safe operation of the circuit.

[0019] 3. It has a simple structure, low cost, and is easy to produce and promote. Attached Figure Description

[0020] Figure 1 This is a perspective reference diagram of a waterproof fuse holder structure in one embodiment of the present invention;

[0021] Figure 2 This is a front view reference diagram of the waterproof fuse holder structure in one embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional reference view of the waterproof fuse holder structure in one embodiment of the present invention;

[0023] Figure 4 This is an exploded reference diagram of a waterproof fuse holder component in one embodiment of the present invention;

[0024] Figure 5 This is a perspective view of a secondary molded body in one embodiment of the present invention;

[0025] Figure 6 This is a perspective view of the secondary molded body from another angle in one embodiment of this utility model. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "one side," "one end," and "one side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0032] like Figure 1 As shown, the waterproof fuse holder of this utility model can be inserted into commonly available fuse blades 100.

[0033] like Figures 1 to 6 As shown, the waterproof fuse holder of this utility model includes, from top to bottom, a connecting terminal 200, a connecting wire 300, a primary molded body 400, and a secondary molded body 500. The connecting terminal 200 is embedded within the primary molded body 400 and is inserted into the fuse piece 100. The secondary molded body 500 encloses the primary molded body 400, and the connecting wire 300 is inserted into both the secondary molded body 500 and the primary molded body 400, and connected to the connecting terminal 200. In a preferred embodiment of this utility model, to facilitate the insertion of the fuse piece 100, there are two connecting terminals 200 and two connecting wires 300.

[0034] The connecting terminal 200 includes a connecting end 201 and a plug-in end 202 that are electrically connected to each other. The connecting end 202 is disposed inside the one-piece molded body 400 and has a riveting structure, thereby fixing it to the connecting wire 300 by riveting. The plug-in end 202 protrudes from the upper surface of the one-piece molded body 400 and is inserted into the fuse piece 100. This design not only improves the reliability of the connection but also enhances the waterproof performance.

[0035] The secondary molded body 500 includes a molded body 510 and a molded protective cover 520. The molded body 510 of the secondary molded body 500 covers the primary molded body 400 and the insertion end 202 of the connecting terminal 200. The molded body 510 forms an insertion opening 511 near the insertion end 202 to expose the insertion end 202. The molded protective cover 520 detachably covers the insertion opening 201. In a preferred embodiment of the present invention, the molded protective cover 520 has an accommodating space inside, which is used to accommodate the fuse piece 100 when the fuse piece 100 and the connecting terminal 200 are inserted into each other and the molded protective cover 520 covers the insertion opening 201.

[0036] Preferably, the molded body 510 is provided with a sealing strip (not shown in the figure) near the edge of the insertion opening. The sealing strip and the molded protective cover 520 are pressed against each other to increase the waterproof effect.

[0037] like Figure 5 and Figure 6 As shown, preferably, the molded body 510 is provided with a connecting wire covering sleeve 512, which covers the connecting wire. The surface of the connecting wire covering sleeve 512 is provided with multiple drainage grooves 513. This structural design can further enhance the waterproof effect and ensure the reliability of the fuse holder in a high humidity environment. In a preferred embodiment of the present invention, the connecting wire covering sleeve 512 is cylindrical and is disposed on both sides of the molded body 510.

[0038] Preferably, the outer wall of the molding body 510 is provided with a main body protrusion 514, and the outer wall of the molded protective cover 520 is provided with a protective cover protrusion 521. This design facilitates the detachment or engagement of the molded protective cover 520 with the molding body 510, optimizes the user's operating experience, and makes replacing the fuse 100 more convenient. In a preferred embodiment of this utility model, there are two main body protrusions 514, respectively disposed on the front and rear sides of the molding body 510; there are two protective cover protrusions 521, respectively disposed on the front and rear sides of the molded protective cover 520.

[0039] In a preferred embodiment of this utility model, the molding body 510 and the molding protective cover 520 are connected by a connecting rope 522 to prevent the molding protective cover 520 from being lost.

[0040] One end of the connecting wire 300 is an internal terminal 301, and the other end is an external terminal 302. The internal terminal 301 is inserted into both the secondary molded body and the primary molded body, and is connected to the connecting terminal 201 of the connecting terminal 200. The external terminal 302 extends out of the secondary molded body and is used to connect the waterproof fuse holder to the circuit.

[0041] This utility model presents a waterproof fuse holder with a simple structure, excellent waterproof performance, and facilitates quick installation and replacement of fuse elements. Through the above design, this utility model not only solves the waterproofing problem of existing fuse holders in humid environments, achieving a waterproof rating of IP69K, but also optimizes the convenience of fuse replacement, making it particularly suitable for circuit protection in high humidity and high current environments.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A fuse holder having a waterproof function, characterized by comprising: include One-piece molded body; A connecting terminal, comprising a connecting end and a plug-in end that are electrically connected to each other; the connecting end is disposed inside the one-piece molded body, and the plug-in end protrudes from the upper surface of the one-piece molded body; A secondary molded body includes a molding body and a molding protective cover. The molding body covers the primary molded body and the plug-in end of the connecting terminal, and forms a plug-in opening near the plug-in end to expose the plug-in end. The molding protective cover is detachably sealed to the plug-in opening. The connecting wire has one end as an inner end, which is inserted into the secondary molding body and the primary molding body in sequence, and connected to the connecting end of the connecting terminal; the other end is an outer end, which extends out of the secondary molding body.

2. The fuse holder with a waterproof function according to claim 1, wherein The connecting end of the connecting terminal is provided with a rivet buckle for riveting the connecting wire.

3. The fuse holder with a water-proof function according to claim 1, wherein, A sealing strip is provided on the edge of the molded body near the insertion opening, and the sealing strip is pressed against the molded protective cover.

4. The fuse holder with a water-proof function according to claim 1, wherein, The molding body of the secondary molding body is provided with a connecting line covering sleeve, the connecting line covering sleeve covers the connecting line, and the outer surface of the connecting line covering sleeve is provided with multiple drainage grooves.

5. The fuse holder with a water-proof function according to claim 1, wherein The outer wall of the molded main body is provided with a main body protrusion, and the outer wall of the molded protective cover is provided with a protective cover protrusion.

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