Fuse pedestal

Abstract

The utility model provides a fuse pedestal comprising a housing, two ends of which are respectively provided with a wiring frame, and one side of the housing is provided with an opening; the rotating piece is rotationally arranged in the shell, one end of the rotating piece extends out of the opening, the rotating piece is provided with an installation groove used for installing a fuse, the two ends of the installation groove are aligned with the two wiring ends located at the two ends in the shell, and the part, extending out of the opening, of the rotating piece is provided with a pulling part capable of rotating the rotating piece out of the opening; the torsional spring is arranged in the shell, the two ends of the torsional spring are fixed to the inner side of the shell and the rotating piece respectively, and the rotating piece rotates in the shell by means of the torsion of the torsional spring to drive the mounting groove to rotate outwards to the opening or return to the interior of the shell. Therefore, according to the fuse base, the fuse is convenient to disassemble and assemble, and labor can be saved by means of the torsion spring.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, and more particularly to a fuse base. Background Art

[0002] A fuse is an electrical device that generates heat to melt the fuse element when the current exceeds a specified value, disconnecting the circuit and thus protecting the circuit. After the fuse blows, it must be manually replaced with a new one to restore the circuit to normal operation.

[0003] However, in most existing fuse holder installation methods, the fuse is fixed in position. This makes fuse removal and installation inconvenient when replacing the fuse, and can easily damage the fuse and fuse holder, leading to circuit damage. Furthermore, while some fuse holders can be opened and closed by external force and then removed, this still presents complex structural design and inconvenient operation. Utility Model Content

[0004] The purpose of the utility model is to provide a fuse base which can facilitate the disassembly and assembly of the fuse and has a simple structure and labor-saving operation.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A fuse base, comprising:

[0007] The shell has a wiring frame at both ends and an opening on one side of the shell;

[0008] A rotating member is rotatably disposed within the housing, with one end of the rotating member extending out of the opening. The rotating member is provided with a mounting groove for mounting the fuse, with both ends of the mounting groove aligned with two wiring terminals located at both ends of the interior of the housing. A pull portion is provided on the portion of the rotating member extending out of the opening for rotating the rotating member out of the opening;

[0009] The torsion spring is arranged in the shell, and the two ends of the torsion spring are respectively fixed on the inner side of the shell and the rotating part. The rotating part rotates in the shell with the help of the torsion force of the torsion spring, driving the installation slot to rotate outward to the opening or return to the shell.

[0010] Furthermore, a pivot portion is provided near the middle of the rotating member, the pivot portion is pivoted to the inside of the shell and located inside the opening, a pivot hole is provided on the pivot portion, one end of the torsion spring is fixed in the pivot hole, and the other end of the torsion spring is fixed to the inside of the shell, and the rotating member rotates around the pivot portion.

[0011] Furthermore, the torsion spring has torsion arms at both ends, and the ends of the torsion arms are bent at right angles to form fixed ends. The two fixed ends are arranged back to back and parallel to each other, one of the fixed ends is inserted into the pivot hole for fixation, and the other fixed end is inserted into the socket provided on the inner side of the shell for fixation.

[0012] Furthermore, notches are provided at both ends of the installation slot, and one of the notches at both ends of the installation slot rotates to an open position after the rotating member rotates outward.

[0013] Furthermore, the two wiring terminals include a first wiring frame and a second wiring frame respectively provided at both ends of the shell, and a first pipe clamp and a second pipe clamp respectively provided at the two end notches corresponding to the installation slot on the inner side of the shell for electrically connecting to the first wiring frame and the second wiring frame.

[0014] Furthermore, the parts where the first tube clamp and the second tube clamp clamp the fuse are arc-shaped, and a retaining spring is provided on the inner side of the shell corresponding to the parts where the first tube clamp and the second tube clamp clamp the fuse. The retaining spring presses on the first tube clamp and the second tube clamp, and the ends of the first tube clamp and the second tube clamp are respectively integrally formed with contacts connected to the first wiring frame and the second wiring frame.

[0015] Furthermore, a blocking piece is provided at the top of the slot opening that is rotated to open in the installation slot.

[0016] Furthermore, one side of the pull portion forms a pull surface, and the pull surface is provided with anti-slip stripes.

[0017] Furthermore, a hollow structure is formed on the surface of the mounting groove; and heat dissipation holes are provided on the surface of the shell at positions corresponding to the wiring frame and the mounting groove.

[0018] Furthermore, the shell includes an upper shell and a lower shell, the torsion spring is fixed to one end of the inner side of the shell and is fixed to the inner side of the upper shell or the lower shell by plugging, and the upper shell and the lower shell are connected by a snap.

[0019] After adopting the above solution, the fuse base of the present invention is installed in the installation slot of the rotating part. When the fuse needs to be replaced, it is only necessary to rotate the rotating part to the opening of the shell, remove the fuse from the installation slot, and then replace it. There is no need to perform any disassembly operation on the main structure of the fuse base, and it is not easy to cause damage to the fuse base itself. Therefore, the fuse base of the present invention is convenient and fast for disassembling and assembling the fuse, and it is safe. Furthermore, by providing a torsion spring, it is convenient to open the rotating part. After the fuse is replaced, the rotating part will automatically return to its original position in the shell under the action of the elastic potential energy of the torsion spring. The two ends of the fuse are connected to the terminal ends inside the shell. The overall structure of the rotating part is simple, the rotation is smooth, and the operation is labor-saving (the force of returning to the position is omitted) and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the fuse base of the utility model;

[0021] Figure 2 This is an exploded view of the fuse base of the utility model;

[0022] Figure 3This is an exploded view of the fuse base of the present invention from another perspective;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure with half of the shell hidden;

[0024] Figure 5 Figure 1 is the rotation state diagram of the rotating part;

[0025] Figure 6 for Figure 5 Figure 1: Rotational state of the rotating part with half of the shell hidden;

[0026] Figure 7 Figure 2 is the rotating state diagram of the rotating part;

[0027] Figure 8 for Figure 7 Figure 2: Rotational state of the rotating part with half of the shell hidden;

[0028] Figure 9 This is a structural schematic diagram of the fuse base of the present invention with half of the housing hidden and no fuse installed.

[0029] Description of Figure Numbers:

[0030] 1 housing; 11 upper housing; 12 lower housing; 13 first wiring frame; 131 first pipe clamp; 14 second wiring frame; 141 second pipe clamp; 15 opening; 151 arc-shaped guide piece; 16 retaining spring; 17 contact piece; 18 heat dissipation hole; 19 buckle; 2 rotating part; 21 mounting groove; 211 blocking piece; 22 pivoting part; 221 pivoting hole; 23 pulling part; 231 anti-slip stripe; 24 side blocking surface 24; 25 side blocking surface; 3 torsion spring; 31 torsion arm; 311 fixed end; 4 fuse DETAILED DESCRIPTION

[0031] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0032] The utility model discloses a fuse base, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 9 As shown, Figure 1-Figure 3 For the fuse base after installing fuse 4, Figure 9 This is a fuse base without fuse 4 installed. The fuse base includes:

[0033] The housing 1 has a wiring frame at each end and an opening 15 at one side of the housing 1;

[0034] Rotating member 2 is rotatably disposed within housing 1, with one end of rotating member 2 extending out of opening 15. Rotating member 2 is provided with a mounting groove 21 for mounting fuse 4. The ends of mounting groove 21 are aligned with two wiring terminals located at two ends of the interior of housing 1. The two ends of rotating member 2 can be electrically connected to the two wiring frames on housing 1;

[0035] The torsion spring 3 is provided in the housing 1 at one end away from the opening 15 and is located on the side of the rotating member 2 facing the opening 15. The two ends of the torsion spring 3 are respectively fixed to the inner side of the housing 1 and the rotating member 2. The rotating member 2 can rotate in the housing 1 around the torsion spring 3, so that the rotating member 2 rotates in the housing 1 with the help of the torsion force of the torsion spring 3, thereby driving the mounting slot 21 to rotate outward to the opening or return to the housing 1.

[0036] Specifically, see Figures 4 to 8 In this embodiment, the rotating member 2 is provided with a pivot portion 22 near the middle of the rotating member 2 at the end away from the opening 15. The pivot portion 22 is pivotally connected to the inside of the housing 1 and is located inside the opening 15 (the pivot portion can be pivoted by a pivot shaft, or in the form of a protruding column whose ends can be inserted into the rotating groove on the inner wall of the housing). A pivot hole 221 is provided on the pivot portion 22. One end of the torsion spring 3 can be fixed in the pivot hole 221, and the other end of the torsion spring 3 is fixed to the inside of the housing 1. The rotating member 2 can rotate about the pivot portion 22. In addition, notches are provided at both ends of the mounting groove 21. After the rotating member 2 rotates, one of the notches at the ends of the mounting groove 21 can be rotated to the position of the opening 15, thereby facilitating the removal or removal of the fuse 4 located in the mounting groove 21.

[0037] In this embodiment, the torsion spring 3 has torsion arms 31 at both ends. The ends of the torsion arms 31 are bent at right angles to form fixed ends 311. The two fixed ends 311 are arranged opposite each other and parallel to each other. One fixed end 311 is inserted into the pivot hole 221 for fixation, while the other fixed end 311 is inserted into a socket (not shown) provided inside the housing for fixation. By fixing one end of the torsion spring 3 to the inside of the housing 1 and the other end to the pivot hole 221, when the rotating member 2 is rotated, only the angle relative to the housing 1 changes, and the pivot hole 221 also changes angle accordingly, generating elastic potential energy between the two ends of the torsion spring 3. In other words, the torsion spring 3 generates resistance to the rotation of the rotating member 2. This, firstly, prevents the rotating member 2 from being misaligned due to accidental contact or other unintentional factors, which could damage the circuit connections within the fuse base. Secondly, it provides assistance for the subsequent resetting of the torsion spring 3 and the rotating member 2.

[0038] In this embodiment, when the rotating member 2 rotates toward the opening 15, the upper and lower ends of the mounting slot 21 are simultaneously electrically disconnected. When the rotating member 2 reaches its extreme position, one of the notches of the mounting slot 21 and the upper half of the rotating member 2 can both extend outside the opening 15. By designing the rotating member 2 to be rotatable within the housing 1, when the fuse 4 needs to be replaced, the rotating member 2 is simply rotated to move the fuse 4 to a position and state that facilitates disassembly and installation. This makes the entire process convenient and efficient, and there is no need to disassemble the housing 1. This ensures that the entire fuse base and fuse 4 will not be damaged due to disassembly and installation, which could affect the safety of the circuit.

[0039] The above structure is only the structure of this embodiment. In specific implementation, the connection structure between the torsion spring 3 and the rotating member 2 and the housing 1 is not limited to this, and the degree of rotation of the rotating member 2 relative to the housing 1 is also not limited to this. It only needs to be able to remove and replace the fuse 4 in the installation slot 21 through the opening 15 after rotation.

[0040] In this embodiment, the two terminal blocks include a first terminal frame 13 and a second terminal frame 14, respectively, located at opposite ends of the housing 1. A first tube clamp 131 and a second tube clamp 141 are provided on the inner side of the housing 1, corresponding to the slots 21 at either end. The openings of the first and second tube clamps 131 and 141 face opposite directions to secure the fuse 4. The first terminal frame 13 and the first tube clamp 131 correspond to the positive terminal, while the second terminal frame 14 and the second tube clamp 141 correspond to the negative terminal. When the rotating member 2 rotates toward the opening 15, the upper and lower ends of the slot 21 simultaneously move away from the first and second tube clamps 131 and 141, disconnecting the circuit. In order to prevent poor contact of the fuse 4 in the circuit and increase the contact area, the parts where the first tube clamp 131 and the second tube clamp 141 clamp the fuse 4 are arc-shaped and can fit the outer surface shape of the fuse 4; and a retaining spring 16 is provided on the inner side of the housing 1 corresponding to the parts where the first tube clamp 131 and the second tube clamp 141 clamp the fuse 4. The retaining spring 16 presses on the first tube clamp 131 and the second tube clamp 141 to ensure a stable electrical connection between the fuse 4 and the first tube clamp 131 and the second tube clamp 141, thereby avoiding poor contact due to shaking; the ends of the first tube clamp 131 and the second tube clamp 141 are respectively integrally formed with contacts 17 connected to the first wiring frame 13 and the second wiring frame 14. With this integrally formed structure, the contact resistance can be reduced and the overall efficiency can be improved.

[0041] Since the fuse 4 can be dislodged from the first and second tube clamps 131, 141 at both ends when the rotating member 2 rotates, there is a risk that the fuse 4 may be dislodged from the notches at both ends of the mounting slot 21 before fully rotating in the mounting slot 21. Therefore, in this embodiment, a stopper 211 is provided at the top of the notch that rotates to the opening 15 in the mounting slot 21 after rotation. In this embodiment, the stopper 211 is located on the side of the upper notch to prevent the fuse 4 from being dislodged during the rotation process. Because the stopper 211 is relatively small, it only blocks the edge of the fuse 4 and only prevents the fuse 4 from being dislodged when the rotating member 2 rotates horizontally within the housing 1. When the rotating member 2 is fully rotated, the notch of the mounting slot 21 aligns with the opening 15 and extends outside of the opening 15. There is sufficient space around the notch of the mounting slot 21 to allow for removal of the fuse 4, and the stopper 211 does not affect the ease of removal of the fuse 4.

[0042] In this embodiment, Figure 6 or Figure 8 As shown, an arc-shaped guide piece 151 is provided above the opening 15 on the inner side of the housing 1 so as not to interfere with the rotating member 2. When the outer end of the blocking piece 211 rotates with the rotating member 2, it almost abuts against the arc-shaped guide piece 151 and rotates along the arc of the bottom surface of the arc-shaped guide piece 151. The arc-shaped guide piece 151 can provide a limit and guide for the rotation of the rotating member 2. In addition, as shown in FIG. Figure 4 or Figure 8 As shown, in the rotating member 2, a side blocking surface 24 is formed at one end of the opening 15 to close the opening 15, and an arc-shaped avoidance groove 25 is formed inside the side blocking surface 24 to avoid interference at the lower end of the opening when the rotating member 2 rotates.

[0043] In this embodiment, to facilitate external force application to rotate the rotating member 2, the portion of one end of the rotating member 2 that extends outside the opening 15 forms a lever portion 23. One side of the lever portion 23 forms a lever surface, which in this embodiment is the side facing the opening 15. The lever surface is provided with anti-slip stripes 231. Specifically, the shape of the lever portion 23 is not limited, as long as it is easily movable. The provision of the anti-slip stripes 231 on the lever portion 23 enhances friction, facilitating the opening and closing of the lever portion 23 under force.

[0044] In this embodiment, the surface of the mounting groove 21 can be formed with a hollow structure, and the surface of the housing 1 is provided with heat dissipation holes 18 at positions corresponding to the wiring frame and the mounting groove 21. The above structures facilitate heat dissipation of the fuse 4 when working in the circuit, thereby improving circuit safety.

[0045] In this embodiment, the shell 1 includes a corresponding upper shell 11 and a lower shell 12. The torsion spring 3 is fixed at one end of the inner side of the shell 1 and is fixed to the inner side of the upper shell 11 or the lower shell 12 by plugging. The upper shell 11 and the lower shell 12 can be connected by a snap 19.

[0046] The above is only an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fuse base, characterized in that: include: The shell has a wiring frame at both ends and an opening on one side of the shell; A rotating member is rotatably disposed within the housing, with one end of the rotating member extending out of the opening. The rotating member is provided with a mounting groove for mounting the fuse, with both ends of the mounting groove aligned with two wiring terminals located at both ends of the interior of the housing. A pull portion is provided on the portion of the rotating member extending out of the opening for rotating the rotating member out of the opening; The torsion spring is arranged in the shell, and the two ends of the torsion spring are respectively fixed on the inner side of the shell and the rotating part. The rotating part rotates in the shell with the help of the torsion force of the torsion spring, driving the installation slot to rotate outward to the opening or return to the shell.

2. A fuse base according to claim 1, characterized in that: A pivot portion is provided near the middle of the rotating member, which is pivotally connected to the inner side of the shell and located inside the opening. A pivot hole is provided on the pivot portion. One end of the torsion spring is fixed in the pivot hole, and the other end of the torsion spring is fixed to the inner side of the shell. The rotating member rotates around the pivot portion.

3. A fuse base according to claim 2, characterized in that: There are torsion arms at both ends of the torsion spring, and the ends of the torsion arms are bent at right angles to form fixed ends. The two fixed ends are arranged back to back and parallel to each other. One of the fixed ends is inserted into the pivot hole for fixation, and the other fixed end is inserted into the socket provided on the inner side of the shell for fixation.

4. A fuse base according to claim 1 or 2, characterized in that: Both ends of the installation groove are provided with notches, and one of the notches at both ends of the installation groove is rotated to an open position after the rotating member rotates outwards.

5. A fuse base according to claim 4, characterized in that: The two wiring terminals include a first wiring frame and a second wiring frame respectively provided at both ends of the shell, and a first pipe clamp and a second pipe clamp respectively provided at the two end notches corresponding to the installation slot on the inner side of the shell for electrically connecting to the first wiring frame and the second wiring frame.

6. A fuse base according to claim 5, characterized in that: The parts where the first pipe clamp and the second pipe clamp clamp the fuse are arc-shaped, and a retaining spring is provided on the inner side of the shell corresponding to the parts where the first pipe clamp and the second pipe clamp clamp the fuse. The retaining spring presses on the first pipe clamp and the second pipe clamp, and the ends of the first pipe clamp and the second pipe clamp are respectively integrally formed with contacts connected to the first wiring frame and the second wiring frame.

7. The fuse base according to claim 4, characterized in that: A blocking piece is provided at the top of the slot opening which is rotated to be open in the installation slot.

8. The fuse base according to claim 1, characterized in that: One side of the pull portion forms a pull surface, and the pull surface is provided with anti-slip stripes.

9. The fuse base according to claim 1, characterized in that: A hollow structure is formed on the surface of the mounting groove; and heat dissipation holes are provided on the surface of the shell at positions corresponding to the wiring frame and the mounting groove.

10. A fuse base according to claim 1 or 3, characterized in that: The shell includes an upper shell and a lower shell. The torsion spring is fixed to one end of the inner side of the shell and is fixed to the inner side of the upper shell or the lower shell by plugging. The upper shell and the lower shell are connected by a snap buckle.

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