A fuse

Abstract

The application provides a fuse, belonging to the field of current protection devices.The fuse comprises a base, two wiring elements are arranged on the base along the length direction, two conductive pieces electrically connected with the two wiring elements respectively are arranged on the base, and the conductive pieces and the corresponding wiring elements are arranged along the width direction or the height direction of the base.The length size of the fuse is reduced by arranging the conductive pieces and the wiring elements along the width direction or the height direction of the base, so that the fuse is convenient to install and use in a narrow space.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of current protection devices, in particular to a fuse. BACKGROUND

[0002] When the current in the circuit exceeds the predetermined value, the fuse core in the fuse will be fused, thereby making the circuit power off to prevent accidents.

[0003] The existing Chinese utility model patent with the authorization announcement number CN218677024U and the authorization announcement date of March 21, 2023 discloses a new type of fuse terminal, which comprises a base and a handle. One side of the handle is provided with a fuse core support matched with an embedded groove. The fuse core support is provided with an integrated circuit board and a fuse tube. The fuse tube has metal contact pieces on both ends of the surface. Two wiring elements and two conductive pieces are arranged in the base. The two conductive pieces are located between the two wiring elements. The conductive piece is in conduction with the wiring element. After the conductive piece contacts the metal contact piece of the fuse tube, the fuse tube is in conduction with the wiring element.

[0004] The two conductive pieces and the wiring elements in the above-mentioned fuse terminal body are arranged in sequence along the length direction of the fuse terminal, which causes the overall length of the fuse terminal to be relatively long, making it difficult to install and use in a narrow space. SUMMARY

[0005] The purpose of the present application is to provide a fuse to solve the technical problem that the conductive pieces and the wiring elements in the fuse of the prior art are arranged in sequence along the length direction of the fuse, resulting in a large length size of the fuse and making it difficult to install and use in a narrow space.

[0006] To achieve the above-mentioned purpose, the technical scheme of the fuse provided by the present application is as follows:

[0007] A fuse comprises a base. Two wiring elements are arranged on the base along the length direction. Two conductive pieces are arranged on the base and are electrically connected to the two wiring elements respectively. The conductive pieces and the corresponding wiring elements are arranged along the width direction or the height direction of the base.

[0008] As a further improvement, the conductive pieces and the corresponding wiring elements are arranged along the height direction of the base. An installation groove is arranged on the base. The depth direction of the installation groove is in the same direction as the height direction of the base. The wiring elements are installed on the bottom wall of the installation groove. The conductive pieces are fixedly installed on the side of the wiring elements away from the bottom wall of the installation groove.

[0009] As a further improvement, a wiring hole is formed in the wiring element for the passage of a wire. A threaded mounting hole is also arranged on the wiring element. A wiring bolt for pressing the wire in the wiring hole is installed in the threaded mounting hole. The threaded mounting hole is located at the edge of the side wall of the wiring element away from the bottom wall of the installation groove and extends obliquely into the wiring hole.

[0010] As a further improvement, the side wall of the installation groove in the length direction is a wiring side wall, the threaded mounting hole is located between the side wall of the wiring element away from the bottom wall of the installation groove and the side wall of the wiring element facing the wiring side wall, and the wiring side wall is provided with an operation hole for the wire to pass through and for mounting the wiring bolt.

[0011] As a further improvement, a slope is provided between the side wall of the wiring element away from the bottom wall of the installation groove and the side wall of the wiring element facing the wiring side wall, and the threaded mounting hole is arranged on the slope.

[0012] As a further improvement, a connecting hole for connecting the conductive part is arranged on the side wall of the wiring element away from the bottom wall of the installation groove, and a fixing hole for fixing the wiring element to the bottom wall of the installation groove is arranged on the side wall of the wiring element close to the bottom wall of the installation groove.

[0013] As a further improvement, the wiring element is fixed to the bottom wall of the installation groove by a fixing bolt, the fixing hole is a through hole for the fixing bolt to pass through, a threaded hole corresponding to the fixing hole is arranged on the bottom wall of the installation groove, the connecting hole and the fixing hole are in communication with the wiring hole, and the connecting hole is coaxial with the fixing hole.

[0014] As a further improvement, the fuse further comprises a mounting cover for being buckled to the base, an inside of the mounting cover is provided with a fuse core mounting structure for mounting the fuse core, a connecting rod is arranged between the mounting cover and the base, one end of the connecting rod is hinged to the base, and the other end of the connecting rod is hinged to the mounting cover.

[0015] As a further improvement, the hinged position of the connecting rod and the mounting cover is located in the middle of the mounting cover.

[0016] As a further improvement, the side of the mounting cover provided with the connecting rod is provided with a avoiding slot to avoid the connecting rod when the mounting cover is buckled to the base.

[0017] The fuse provided by the present application has the following advantages: the fuse in the present application is an improvement on the prior art. The fuse is arranged along the width direction or the height direction of the base by the conductive part and the wiring element, thereby reducing the length size of the fuse and facilitating the installation and use of the fuse in a narrow space. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic structural diagram of the fuse in the present application;

[0019] Figure 2 FIG. 2 is a schematic structural diagram of the fuse in the present application without the mounting cover;

[0020] Figure 3 FIG. 3 is a schematic structural diagram of the base in the present application;

[0021] Figure 4 Fig. 1 is a structural schematic diagram of a wiring element in the present application;

[0022] Figure 5 Fig. 2 is a structural schematic diagram of a conductive element in the present application;

[0023] Figure 6 Fig. 3 is a structural schematic diagram of a mounting cover in the present application;

[0024] Figure 7 Fig. 4 is a structural schematic diagram of a connecting rod in the present application;

[0025] Figure 8 Fig. 5 is a structural schematic diagram of a clamping element in the present application.

[0026] Explanation of reference signs:

[0027] 1, base; 2, clamping groove; 3, clamping element; 4, bolt hole; 5, mounting groove; 6, wiring element; 7, wiring hole; 8, fixing hole; 9, connecting hole; 10, conductive element; 11, through hole; 12, operating hole; 13, inclined surface; 14, threaded mounting hole; 15, wiring bolt; 16, mounting ring; 17, stop block; 17, fitting groove; 18, connecting rod; 19, hinged column; 20, "cross" groove; 21, first hinged hole; 22, second hinged hole; 23, mounting cover; 24, handle; 25, fuse core; 26, avoiding groove. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below in combination with embodiments.

[0029] The present application aims at the problem that the existing fuse has a large length size and is difficult to be installed and used in a narrow space. The main idea is to arrange the conductive element and the wiring element along the width direction or the height direction of the base, so as to reduce the length size of the fuse, and facilitate the installation and use of the fuse in a narrow space.

[0030] Specific embodiment 1 of the fuse provided by the present application:

[0031] A fuse, comprising a base 1 and a mounting cover 23.

[0032] Referring to Figs. 1 to 5, Figure 1 and Figs. 6 to 8, Figure 2 and in combination with Figs. 1 to 5, Figure 3 the bottom of the base 1 is provided with a clamping groove 2 for mounting the base 1 to a guide rail and a clamping element 3 for clamping the guide rail, the structure of the clamping element 3 is shown in Fig. 5. Figure 8 The clamping element 3 is a prior art, and will not be described here in detail. In addition, in order to facilitate the installation of the fuse at a position without a guide rail, bolt holes 4 for mounting bolts are also provided at the four corners of the base 1.

[0033] The base 1 is provided with a mounting groove 5, and two wiring elements 6 are arranged along the length direction of the base 1 on the bottom wall of the mounting groove 5. A wiring hole 7 is formed through the wiring element 6 for the wire to pass in, and the extension direction of the wiring hole 7 is the same as the length direction of the mounting seat. A fixing hole 8 is formed in the side wall of the wiring element 6 close to the bottom wall of the mounting groove 5 and communicates with the wiring hole 7, the fixing hole 8 is a light hole, and a threaded hole is formed in the corresponding position of the bottom wall of the mounting groove 5, a fixing bolt is arranged in the fixing hole 8, the fixing bolt passes through the fixing hole 8 and is screwed with the threaded hole on the bottom wall of the mounting groove 5, so that the wiring element 6 can be fixedly installed on the bottom wall of the mounting groove 5.

[0034] Referring to the accompanying drawings Figure 4 A connecting hole 9 is formed in the side wall of the wiring element 6 away from the bottom wall of the mounting groove 5, the connecting hole 9 is a threaded hole, and the connecting hole 9 is coaxially arranged with the fixing hole 8 to facilitate the installation of the fixing bolt. A conductive part 10 is arranged on the side of the wiring element 6 away from the bottom wall of the mounting groove 5, referring to the accompanying drawings Figure 5 The conductive part 10 is in a U-shaped structure as a whole, a through hole 11 is formed in the middle of the conductive part 10, a connecting bolt is arranged in the through hole 11, the connecting bolt passes through the through hole 11 and is screwed with the connecting hole 9, so that the conductive part 10 can be fixedly installed on the wiring element 6, and at the same time, the conductive part 10 is electrically connected with the wiring element 6.

[0035] The two side walls in the length direction of the base 1 are wiring side walls, and an operation hole 12 is formed in each of the wiring side walls, the operation hole 12 corresponds to the wiring hole 7, and the wire can pass through the operation hole 12 from the outside of the base 1 and enter the wiring hole 7. An inclined surface 13 is arranged between the side wall of the wiring element 6 facing the wiring side wall and the side wall of the wiring element 6 away from the bottom wall of the mounting groove 5, a threaded mounting hole 14 is vertically formed on the inclined surface 13, and the threaded mounting hole 14 extends obliquely from the inclined surface 13 to the wiring hole 7. A wiring bolt 15 is arranged in the threaded mounting hole 14, the height of the operation hole 12 meets the requirement that the wiring bolt 15 is installed in the threaded mounting hole 14 from the operation hole 12, and a screwdriver can be inserted into the operation hole 12 to rotate the wiring bolt 15. The wiring bolt 15 can enter the wiring hole 7 and press the wire, and the oblique arrangement of the wiring bolt 15 can avoid the conductive part 10 installed on the wiring element 6, which is convenient for operation and can also improve the anti-withdrawal ability of the wiring bolt 15 to the wire. The inclined surface 13 is arranged to facilitate the machining of the inclined threaded mounting hole 14, so in other embodiments, the inclined surface 13 can not be arranged.

[0036] Referring to the accompanying drawings Figure 6The inner side of the mounting cover 23 is provided with a core mounting structure for mounting the core 25, which includes two mounting rings 16, the core 25 is arranged in the mounting rings 16, and the inner side of the mounting cover 23 is further provided with a stop block 17 for axially limiting the core 25. After the mounting cover 23 is buckled to the base 1, the core 25 can be mounted into the mounting groove 5, and the metal parts at both ends of the core 25 are in contact with and conductive to the two conductive parts 10, respectively. The two side walls of the base 1 in the length direction are both provided with an embedded groove 17 for embedding the two ends of the mounting cover 13 in the length direction, so that the mounting cover 23 will not protrude from the base 1 after being buckled to the base 1, and the bottom wall of the embedded groove 17 can also play a positioning role on the mounting cover 13. In other embodiments, the embedded groove 17 can also not be provided, and in this embodiment, the mounting cover 23 is buckled to the base 1 and directly embedded into the mounting groove 5.

[0037] The two sides of the mounting cover 23 in the width direction are both provided with a connecting rod 18, as shown in the accompanying drawings Figure 7 The two ends of the connecting rod 18 are both provided with a hinge column 19, one of which is located on the side of the connecting rod 18 facing the mounting cover 23, and the other is located on the side of the connecting rod 18 away from the mounting cover 23. The middle part of the mounting cover 23 is provided with a first hinge hole 21 for hinge cooperation with one of the hinge columns 19 on the connecting rod 18, and the side wall of the mounting groove 5 in the width direction is provided with two second hinge holes 22 arranged along the length direction of the base 1, which are located close to the end of the base 1. In use, the hinge column 19 at the end of the connecting rod 18 away from the mounting cover 23 is hingedly connected with one of the second hinge holes 22 on the corresponding side. Two second hinge holes 22 on each side are provided to facilitate the installation of the mounting cover 23 in the front and back directions. The hinge column 19 and the first hinge hole 21 or the second hinge hole 22 are in interference fit, and the hinge column 19 is provided with a "cross" groove 20 along its axial direction, so that the hinge column 19 has good radial elasticity, thereby ensuring that the hinge column 19 can rotate relative to the first hinge hole 21 or the second hinge hole 22, and can also remain stable after rotating by a certain angle.

[0038] The mounting cover 23 has a buckling position buckled on the mounting seat and an open position after being opened. During the process from the buckling position to the open position of the mounting cover 23, the mounting cover 23 will rotate relative to the connecting rod 18, and at the same time the connecting rod 18 will rotate relative to the base 1, so that the distance between the mounting cover 23 and the base 1 is larger at the open position, which is convenient for dismounting or mounting the core 25. The two sides of the mounting cover 23 in the width direction are provided with a concave avoiding groove 26, the first hinge hole 21 is arranged at the avoiding groove 26, and the size of the connecting rod in the width direction of the mounting cover 23 is equal to the groove depth of the avoiding groove 26. When the mounting cover 23 is in the buckling position, the connecting rod 18 enters the avoiding groove 26.

[0039] When the fuse is installed with the mouth of the installation slot 5 facing upwards, if the installation cover 23 is in the open position, one end of the installation cover 23 in the length direction will be inclined downwards, so in order to prevent the fuse core 25 from falling off, the stopper 17 is arranged at the lower end of the installation cover 23 when it is in the open position.

[0040] A handle 24 is fixedly arranged on the outer side of the installation cover 23, which facilitates the operator to fasten or open the installation cover 23.

[0041] In the fuse, since the conducting member 10 and the wiring element 6 are not arranged in sequence along the length direction of the base 1, but the conducting member 10 is fixedly installed on the side of the wiring element 6 away from the bottom wall of the installation slot 5, the length dimension of the base 1 can be reduced, which facilitates installation and use in an environment with limited space.

[0042] In other embodiments, the connecting rod can also have other installation forms. For example, in one embodiment, the first hinge hole can also be arranged at a position close to the end of the installation cover, and the second hinge hole is arranged on one side wall of the base in the width direction and is located at a middle position of the side wall. In another embodiment, the two ends of the connecting rod are provided with pin holes, and the installation cover and the base are provided with pin columns for hinge cooperation with the pin holes.

[0043] In the present embodiment, the connecting rod is arranged in order to facilitate the opening and closing of the installation cover when the fuse is installed in a limited space, and also to facilitate the installation and removal of the fuse core. In other embodiments, the connecting rod can also not be arranged, in which case the installation cover can be directly hinged to the base; or the installation cover and the base are separated, and the installation cover is fastened on the base by plugging.

[0044] In other embodiments, the wiring element can also have other forms. In one embodiment, the wiring element can not be provided with a connecting hole, and the conducting member is directly welded and fixed to the wiring element. In order to facilitate the fixing of the wiring element on the base, the fixing hole in this embodiment is a threaded hole, and the base is provided with a light hole at the corresponding position. A bolt is passed through the light hole from the outside of the base and is screwed into the fixing hole, thereby completing the fixing of the wiring element. In another embodiment, the threaded installation hole can also be arranged on the side of the wiring element away from the bottom wall of the installation slot and vertically arranged. In this embodiment, the conducting member can be arranged side by side with the wiring element in the width direction of the base. This embodiment will make the width dimension of the fuse larger, but the length dimension of the fuse will be smaller.

[0045] In other embodiments, the wiring element can also be a plug-in type terminal, in which case the conducting wire can not be fixed by a wiring bolt, so the wiring bolt can not be arranged.

[0046] In this embodiment, the plurality of fuses can be used jointly in parallel along the width direction thereof. When one fuse is used alone, a threaded mounting hole for mounting a wiring bolt can be provided on a side wall of the base in the width direction of the base, and in this embodiment, a hole is also required to be opened in the side wall of the base in the width direction to facilitate mounting and rotation of the wiring bolt.

[0047] Finally, it should be noted that the above description is only for the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will still be able to modify the technical solutions described in the foregoing embodiments without creative labor, or make equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fuse, comprising a base, two wiring elements disposed on the base along its length, and two conductive elements respectively electrically connected to the two wiring elements, characterized in that, The conductive components and corresponding wiring elements are arranged along the height direction of the base. The base is provided with a mounting groove, the depth direction of which is in the same direction as the height direction of the base. The wiring elements are installed on the bottom wall of the mounting groove, and the conductive components are fixedly installed on the side of the wiring elements away from the bottom wall of the mounting groove.

2. The fuse according to claim 1, characterized in that, The wiring element has a wiring hole for wires to pass through, and a threaded mounting hole is also provided on the wiring element. A wiring bolt for pressing the wire in the wiring hole is installed in the threaded mounting hole. The threaded mounting hole is located at the edge of the side wall of the wiring element away from the bottom wall of the mounting groove, and extends obliquely into the wiring hole.

3. The fuse according to claim 2, characterized in that, The side wall along the length of the mounting groove is the wiring side wall. The threaded mounting hole is located between the side wall of the wiring element away from the bottom wall of the mounting groove and the side wall of the wiring element facing the wiring side wall. The wiring side wall has an operating hole for the wire to pass through and for installing the wiring bolt.

4. The fuse according to claim 3, characterized in that, An inclined surface is provided between the side wall of the wiring element away from the bottom wall of the mounting groove and the side wall of the wiring element facing the wiring side wall, and the threaded mounting hole is provided on the inclined surface.

5. The fuse according to any one of claims 2-4, characterized in that, A connection hole for connecting conductive parts is provided on the side wall of the wiring element away from the bottom wall of the mounting groove, and a fixing hole for fixing the wiring element to the bottom wall of the mounting groove is provided on the side wall of the wiring element close to the bottom wall of the mounting groove.

6. The fuse according to claim 5, characterized in that, The wiring element is fixed to the bottom wall of the mounting groove by fixing bolts. The fixing hole is a smooth hole for the fixing bolt to pass through. The bottom wall of the mounting groove is provided with threaded holes corresponding to the fixing holes. Both the connecting hole and the fixing hole are connected to the wiring hole, and the connecting hole and the fixing hole are coaxial.

7. The fuse according to any one of claims 1-4, characterized in that, The fuse also includes a mounting cover for fastening onto the base. The inner side of the mounting cover is provided with a fuse element mounting structure for mounting the fuse element. A connecting rod is provided between the mounting cover and the base. One end of the connecting rod is hinged to the base, and the other end of the connecting rod is hinged to the mounting cover.

8. The fuse according to claim 7, characterized in that, The hinge point between the connecting rod and the mounting cover is located in the middle of the mounting cover.

9. The fuse according to claim 7, characterized in that, The mounting cover has a clearance groove on the side with the connecting rod to allow the connecting rod to pass when the mounting cover is fastened to the base.

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