Fusing indicating device of fuse

Abstract

The utility model relates to a fusing indicating device of a fuse, which belongs to the technical field of fuses, and comprises a fuse shell and a fuse wire positioned in the fuse shell, an indicating spring is fixedly arranged on the inner side wall of the fuse shell, an indicating pull plate is fixedly arranged at one end of the indicating spring, and the other end of the indicating spring is fixedly connected with the fuse wire. A metal base plate is fixedly installed on one side of the indicating pull plate and makes contact with one side of the fuse wire, and an indicating rod is arranged on one side of the fuse shell in a penetrating mode. According to the fusing indicating device of the fuse, the indicating spring is arranged on the inner side wall of the fuse shell, the indicating pull plate is arranged at one end of the indicating spring, and the metal base plate is arranged on one side of the indicating pull plate, so that after the fuse wire is fused, the indicating spring pulls the indicating pull plate towards the indicating end plate, and the indicating rod is pushed out of the fuse shell; a user can conveniently observe whether the indicating rod extends out of the fuse shell or not from the fuse shell and distinguish whether the fuse is fused or not.

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, specifically to a fuse failure indicator device. Background Technology

[0002] A fuse is a critical electrical safety device. A fuse uses a metal conductor as a fusible element connected in series in a circuit. When an overload or short-circuit current passes through the fusible element, the element heats up and melts, thus breaking the circuit.

[0003] In the event of an overload or short circuit, a fuse can quickly cut off the circuit, preventing the fault from escalating, avoiding damage to electrical equipment connected to the circuit, reducing the risk of fires and other dangerous situations caused by electrical faults, and lowering the risk of injury to people. For example, in household electricity use, if a short circuit occurs in the wiring, the fuse will melt in time, preventing electric shock and fire accidents.

[0004] Common fuses need to be installed inside an insulating casing for use. After they blow, the internal fuse can be replaced and the fuse can be used again. However, before replacing the fuse, the fuse core needs to be checked with a multimeter to ensure that the fuse is in a normal condition. This checking process increases the replacement time and reduces the replacement efficiency. In view of this, this application proposes a fuse blowout indication device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a fuse failure indicator device, which has the advantages of displaying whether the replacement fuse core has blown. This solves the problem that before replacing the fuse core, a multimeter needs to be used to check to ensure that the fuse is in normal condition, which increases replacement time and reduces replacement efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fuse indicating device, comprising a fuse housing and a fuse wire located inside the fuse housing, an indicating spring fixedly installed on the inner side wall of the fuse housing, an indicating pull plate fixedly installed at one end of the indicating spring, a metal pad fixedly installed on one side of the indicating pull plate, the metal pad contacting one side of the fuse wire, an indicating rod passing through one side of the fuse housing, an indicating end plate fixedly installed at one end of the indicating rod, the indicating end plate being located on the side of the fuse wire away from the metal pad.

[0007] Furthermore, the number of indicator springs is four, and the four indicator springs are evenly distributed at the four corners of the indicator pull plate, and the four indicator springs are staggered from the fuse.

[0008] Furthermore, a limiting spring is fitted onto the surface of the indicator rod. One end of the limiting spring is fixedly installed on the inner wall of the fuse housing, and the other end of the limiting spring is in contact with one side of the indicator end plate.

[0009] Furthermore, a mounting base is fixedly installed on the inner bottom wall of the fuse housing, and a connecting bottom rod is fixedly installed on the top of the mounting base.

[0010] Furthermore, a bottom conductive terminal is fixedly installed at the bottom of the fuse housing, and the bottom conductive terminal is connected to the mounting base.

[0011] Furthermore, a mounting bracket is fixedly installed on the inner top wall of the fuse housing, and a connecting rod is fixedly installed on the bottom of the mounting bracket.

[0012] Furthermore, a top conductive terminal is fixedly installed on the top of the fuse housing, and the top conductive terminal is connected to the mounting base.

[0013] Furthermore, each of the connecting bottom rod and the connecting top rod has an installation groove at one end, and an installation shaft is fixedly installed on the inner side wall of the installation groove. The two ends of the fuse are rotatably connected to the two installation shafts respectively.

[0014] Compared with the prior art, the present invention provides a fuse failure indicator device, which has the following advantages:

[0015] The fuse indication device of this device uses an indicator spring installed on the inner wall of the fuse housing, an indicator pull plate at one end of the indicator spring, and a metal pad on one side of the indicator pull plate. When the fuse wire melts, the indicator spring pulls the indicator pull plate towards the indicator end plate, pushing the indicator rod outward from the fuse housing. This allows the user to easily observe whether the indicator rod extends out of the fuse housing and identify whether the fuse has melted. This solves the problem that replacing the fuse requires checking with a multimeter before replacement to ensure that the fuse is in normal condition, which increases replacement time and reduces replacement efficiency. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0017] Fig. 2 This is a schematic diagram of the structure of this utility model in the state of fusion fracture;

[0018] Fig. 3 This is a top sectional view of the structure of this utility model;

[0019] Fig. 4 This is a three-dimensional diagram showing the installation of the fuse wire of this utility model.

[0020] In the diagram: 1. Fuse housing; 2. Fuse wire; 3. Indicator spring; 4. Indicator pull plate; 5. Metal pad; 6. Indicator rod; 7. Indicator end plate; 8. Limit spring; 9. Mounting base; 10. Connecting bottom rod; 11. Bottom conductive terminal; 12. Mounting top seat; 13. Connecting top rod; 14. Top conductive terminal; 15. Mounting groove; 16. Mounting shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figs. 1 to 4 A fuse indicating device includes a fuse housing 1 and a fuse wire 2 located inside the fuse housing 1. An indicating spring 3 is fixedly installed on the inner side wall of the fuse housing 1. An indicating pull plate 4 is fixedly installed on one end of the indicating spring 3. A metal pad 5 is fixedly installed on one side of the indicating pull plate 4. The metal pad 5 is in contact with one side of the fuse wire 2. An indicating rod 6 is passed through one side of the fuse housing 1. An indicating end plate 7 is fixedly installed on one end of the indicating rod 6. The indicating end plate 7 is located on the side of the fuse wire 2 away from the metal pad 5.

[0023] The metal pad 5 contacts one side of the fuse 2 to prevent the high temperature of the fuse 2 from affecting the indicator pull plate 4. When the fuse 2 melts, the indicator pull plate 4 loses its obstruction, and the indicator spring 3 pulls the indicator pull plate 4 towards the indicator rod 6. The indicator pull plate 4 pushes the indicator end plate 7 and pushes the indicator rod 6 out of the fuse housing 1, making it convenient to observe whether the fuse has melted.

[0024] There are four indicator springs 3, which are evenly distributed at the four corners of the indicator pull plate 4 and are staggered from the fuse 2.

[0025] Secondly, a limiting spring 8 is fitted onto the surface of the indicator rod 6. One end of the limiting spring 8 is fixedly installed on the inner wall of the fuse housing 1, and the other end of the limiting spring 8 is in contact with one side of the indicator end plate 7. The limiting spring 8 supports the indicator end plate 7, preventing the indicator rod 6 from extending out of the fuse housing 1 when the fuse wire 2 has not melted.

[0026] Meanwhile, a mounting base 9 is fixedly installed on the inner bottom wall of the fuse housing 1, and a connecting bottom rod 10 is fixedly installed on the top of the mounting base 9. A bottom conductive terminal 11 is fixedly installed on the bottom of the fuse housing 1, and the bottom conductive terminal 11 is connected to the mounting base 9.

[0027] The fuse housing 1 has a mounting base 12 fixedly installed on its inner top wall, and a connecting rod 13 fixedly installed on the bottom of the mounting base 12. A top conductive terminal 14 is fixedly installed on the top of the fuse housing 1, and the top conductive terminal 14 is connected to the mounting base 12.

[0028] Example 2: Please refer to Figs. 1 to 4 Based on Embodiment 1, mounting grooves 15 are provided at opposite ends of the connecting bottom rod 10 and the connecting top rod 13. Mounting shafts 16 are fixedly mounted on the inner sidewalls of the mounting grooves 15, and the two ends of the fuse 2 are rotatably connected to the two mounting shafts 16 respectively. The fuse 2 is connected to the circuit through the bottom conductive terminal 11 and the top conductive terminal 14. When the fuse 2 melts, the metal pad 5 pushes the two melted ends to rotate around the mounting shafts 16 to prevent the fuse 2 from obstructing the movement of the indicator pull plate 4.

[0029] In this embodiment, the fuse 2 is connected to the circuit through the bottom conductive terminal 11 and the top conductive terminal 14. When the fuse 2 melts, the metal pad 5 pushes the two melted sections to rotate around the mounting shaft 16. The indicator pull plate 4 loses its obstruction, and the indicator spring 3 pulls the indicator pull plate 4 towards the indicator rod 6. The indicator pull plate 4 pushes the indicator end plate 7 and pushes the indicator rod 6 out of the fuse housing 1, making it convenient to observe whether the fuse has melted.

[0030] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0031] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fuse indicating device, comprising a fuse housing (1) and a fuse wire (2) located inside the fuse housing (1), characterized in that: An indicator spring (3) is fixedly installed on the inner wall of the fuse housing (1). An indicator pull plate (4) is fixedly installed on one end of the indicator spring (3). A metal pad (5) is fixedly installed on one side of the indicator pull plate (4). The metal pad (5) is in contact with one side of the fuse wire (2). An indicator rod (6) is passed through one side of the fuse housing (1). An indicator end plate (7) is fixedly installed on one end of the indicator rod (6). The indicator end plate (7) is located on the side of the fuse wire (2) away from the metal pad (5).

2. The fuse indication device according to claim 1, characterized in that: The number of indicator springs (3) is four, and the four indicator springs (3) are evenly distributed at the four corners of the indicator pull plate (4). The four indicator springs (3) are staggered from the fuse (2).

3. The fuse indication device according to claim 1, characterized in that: A limiting spring (8) is fitted on the surface of the indicator rod (6). One end of the limiting spring (8) is fixedly installed on the inner side wall of the fuse housing (1), and the other end of the limiting spring (8) is in contact with one side of the indicator end plate (7).

4. The fuse indication device according to claim 1, characterized in that: The inner bottom wall of the fuse housing (1) is fixedly installed with a mounting base (9), and a connecting bottom rod (10) is fixedly installed on the top of the mounting base (9).

5. A fuse indication device according to claim 4, characterized in that: The bottom of the fuse housing (1) is fixedly installed with a bottom conductive terminal (11), which is connected to the mounting base (9).

6. The fuse indication device according to claim 5, characterized in that: A mounting top seat (12) is fixedly installed on the inner top wall of the fuse housing (1), and a connecting rod (13) is fixedly installed on the bottom of the mounting top seat (12).

7. A fuse indication device according to claim 6, characterized in that: A top conductive terminal (14) is fixedly installed on the top of the fuse housing (1), and the top conductive terminal (14) is connected to the mounting base (12).

8. A fuse indication device according to claim 7, characterized in that: The connecting bottom rod (10) and the connecting top rod (13) are each provided with an installation groove (15) at one end. An installation shaft (16) is fixedly installed on the inner side wall of the installation groove (15). The two ends of the fuse (2) are rotatably connected to the two installation shafts (16) respectively.

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