Intelligent fuse temperature measurement protection device

Abstract

The utility model belongs to the technical field of fuses, and particularly relates to an intelligent fuse temperature measurement protection device, which comprises a fusing auxiliary assembly, a fusing assembly is transversely and movably arranged in the fusing auxiliary assembly, and an alarm sealing assembly is arranged at the top of the fusing auxiliary assembly; the fusing assembly comprises two circuit connecting plates, a resistance reducing block is arranged between the two circuit connecting plates, and fusing bodies are fixedly connected between the two sides of the resistance reducing block and the two circuit connecting plates; the fusing auxiliary assembly comprises a shell, and spring blocks are fixedly connected to the two sides of the middle of the interior of the shell. According to the utility model, two breaking sections are formed through the arrangement of the breaking body, the two breaking sections are isolated through the insulating arc breaking cap II and the insulating arc breaking cap I and are prevented from being damaged at the same time, and the insulating arc breaking cap II and the insulating arc breaking cap I are arranged, so that when the breaking body is melted due to high temperature, an isolation effect can be achieved, and the occurrence of electric arcs can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of fuse technology, specifically relating to an intelligent fuse temperature measurement and protection device. Background Technology

[0002] A fuse temperature monitoring and protection device is a device that protects circuits or equipment through temperature monitoring and intelligent control. It is commonly used in electrical systems to prevent equipment damage or fire hazards caused by abnormal conditions such as overload, short circuit, or high temperature. This device combines traditional fuses with modern temperature sensing technology, enabling more precise protection and early warning, thus improving the safety and reliability of electrical systems.

[0003] Problems with existing technology:

[0004] Existing fuse temperature protection devices generally use a single fuse for short-circuit and high-temperature protection of the circuit. When the fuse fails for some reason, the entire circuit will be damaged. Using two fuses for protection would increase the cost, and the lack of a necessary alarm device after the fuse blows would make it difficult to detect. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent fuse temperature measurement and protection device, which can form two fuse-breaking sections by setting the fuse body, and isolate them by insulating arc-breaking cap two and insulating arc-breaking cap one to prevent simultaneous damage. Moreover, the setting of insulating arc-breaking cap two and insulating arc-breaking cap one can play an isolation role when the fuse body melts due to high temperature, thus preventing the occurrence of electric arc.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A smart fuse temperature measurement and protection device includes: a fuse auxiliary component, wherein a fuse component is laterally movably disposed inside the fuse auxiliary component, and an alarm sealing component is disposed on the top of the fuse auxiliary component;

[0008] The fuse assembly includes two circuit connection plates, a drag-reducing block is disposed between the two circuit connection plates, and a fuse element is fixedly connected to both sides of the drag-reducing block and the two circuit connection plates.

[0009] The fuse-breaking auxiliary component includes a housing, with spring blocks fixedly connected to both sides of the middle of the housing. On the side of the two spring blocks that are close to each other, there is an insulating arc-breaking cap 2 and an insulating arc-breaking cap 1, which are attached to the corresponding fuse breaking body.

[0010] An arc-breaking spring is transversely arranged inside the spring block. The end of the arc-breaking spring is fixedly connected to an insulating arc-breaking cap one and an insulating arc-breaking cap two. The insulating arc-breaking cap one and the insulating arc-breaking cap two are in movable contact.

[0011] The insulating arc-breaking cap one and the insulating arc-breaking cap two have guide grooves at their ends near the fusion break body.

[0012] The alarm sealing assembly includes a snap-fit ​​sealing cover, the bottom of which is fixedly connected to two limiting conductive legs. The circuit connection plate has a limiting groove at the position corresponding to the limiting conductive legs, and the limiting conductive legs are positioned and matched with the limiting groove.

[0013] An alarm light is provided on the top of the snap-fit ​​sealing cover, and the two limiting conductive legs are electrically connected to the positive and negative terminals of the alarm light, respectively.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention forms two fusion-breaking sections by setting up a fusion-breaking body. The two insulating arc-breaking caps are isolated from each other to prevent simultaneous damage. Moreover, the two insulating arc-breaking caps can isolate the fusion-breaking body when it melts due to high temperature, thus preventing the occurrence of electric arc.

[0016] This invention, through the positioning and cooperation of the limiting conductive leg and the limiting groove, can limit the circuit connection board while also enabling two circuit connection boards to be connected in parallel with alarm lights, so that an alarm is triggered when the molten metal breaks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a disassembly diagram of the overall structure of this utility model;

[0019] Figure 3 This is a top view of the structure of the fuse auxiliary component in this utility model;

[0020] Figure 4 This is a cross-sectional view of the structure of the fuse auxiliary component in this utility model;

[0021] Figure 5 This utility model Figure 3 A schematic diagram of the structure of point A;

[0022] Figure 6 This is a magnified view of a portion of the structure of the fuse assembly in this utility model;

[0023] Figure 7 This is a schematic diagram of the alarm sealing assembly in this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Fusible auxiliary component; 2. Fusible component; 3. Alarm sealing component; 101. Housing; 102. Insulating arc breaking cap one; 103. Insulating arc breaking cap two; 104. Spring block; 105. Arc breaking spring; 106. Guide groove; 201. Circuit connection plate; 202. Limiting groove; 203. Drag reduction block; 204. Fusible element; 301. Snap-on sealing cover; 302. Alarm light; 303. Limiting conductive leg. Detailed Implementation

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0027] like Figures 1-6 As shown, an intelligent fuse temperature measurement and protection device includes: a fuse auxiliary component 1, a fuse component 2 is laterally movably arranged inside the fuse auxiliary component 1, and an alarm sealing component 3 is arranged on the top of the fuse auxiliary component 1; the fuse component 2 includes two circuit connection plates 201, a drag-reducing block 203 is arranged between the two circuit connection plates 201, and a fusion breaking element 204 is fixedly connected between the two sides of the drag-reducing block 203 and the two circuit connection plates 201; the fuse auxiliary component 1 includes a shell 101, and spring blocks 104 are fixedly connected to the middle two sides inside the shell 101. Insulating arc breaking cap 203 and insulating arc breaking cap 102 are arranged on the side of the two spring blocks 104 that are close to each other, and the insulating arc breaking cap 203 and insulating arc breaking cap 102 are in contact with the corresponding fusion breaking element 204.

[0028] In this circuit, the fuse is connected in series. Since all components of the fuse assembly 2 are made of the same material, the fused element 204 has the smallest cross-sectional area and the largest resistance. When a short circuit occurs, according to Ohm's law U=I²*R, the current in the series circuit is equal, which means that the temperature at the fused element 204 is the highest. Therefore, one of the fused elements 204 will melt first. At this time, the corresponding insulating arc-breaking caps 102 or 103 on both sides will replace the melted fused element 204, thus separating the circuit connection plate 201 on the positive side from the rest, achieving circuit breaking and protecting the circuit safety.

[0029] See attached document Figures 3-5An arc-breaking spring 105 is horizontally arranged inside the spring block 104. The end of the arc-breaking spring 105 is fixedly connected to the first insulating arc-breaking cap 102 and the second insulating arc-breaking cap 103. The first insulating arc-breaking cap 102 and the second insulating arc-breaking cap 103 are in movable contact. A guide groove 106 is provided at the end of the first insulating arc-breaking cap 102 and the second insulating arc-breaking cap 103 near the fusion body 204.

[0030] According to the above structure, when installing the fuse assembly 2, the fuse assembly 2 is inserted into the housing 101 from above the fuse auxiliary assembly 1. At this time, the insulating arc breaking cap 102 and insulating arc breaking cap 103 on both sides move to both sides under the pressure of the molten body 204 because the top of their contact surfaces are arc-shaped. At this time, the arc breaking spring 105 is compressed and accumulates elastic potential energy. When the molten body 204 is melted, the arc breaking spring 105 releases potential energy to push the insulating arc breaking cap 102 or insulating arc breaking cap 103 to the position of the molten body 204, which plays the role of isolating the electric arc. The guide groove 106 is used to guide the melted molten body 204 to flow out.

[0031] See attached document Figures 6-7 The alarm sealing assembly 3 includes a snap-fit ​​sealing cover 301. Two limiting conductive legs 303 are fixedly connected to the bottom of the snap-fit ​​sealing cover 301. A limiting groove 202 is formed on the circuit connection plate 201 corresponding to the position of the limiting conductive legs 303. The limiting conductive legs 303 are positioned and matched with the limiting groove 202. An alarm light 302 is provided on the top of the snap-fit ​​sealing cover 301. The two limiting conductive legs 303 are electrically connected to the positive and negative terminals of the alarm light 302, respectively.

[0032] According to the above structure, when the molten metal 204 melts to form an open circuit, the resistance of the NTC thermistor installed inside the alarm sealing assembly 3 decreases under high temperature. At this time, the limit conductive legs 303 at both ends form a circuit with the limit groove 202 and the alarm light 302, and the alarm light 302 will sound an alarm.

[0033] The working principle of this utility model is as follows: When in use, the fuse is connected in series into the circuit. Among them, all components of the fuse assembly 2 are made of the same material. The cross-sectional area of ​​the fused element 204 is the smallest and the resistance is the largest. When a short circuit occurs, according to Ohm's law U=I²*R, the current in the series circuit is equal, which means that the temperature at the fused element 204 is the highest. Therefore, one of the fused elements 204 will melt first. At this time, the corresponding insulating arc breaking caps 102 or 103 on both sides will replace the melted fused element 204, so that the circuit connection plate 201 connected to the positive electrode side is separated from the rest to achieve circuit breaking and protect the circuit safety.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A smart fuse temperature measurement and protection device, characterized in that, include: A fuse auxiliary assembly (1) is provided with a fuse assembly (2) inside the fuse auxiliary assembly (1) and an alarm sealing assembly (3) is provided on the top of the fuse auxiliary assembly (1). The fuse assembly (2) includes two circuit connection plates (201), a drag-reducing block (203) is provided between the two circuit connection plates (201), and a fuse element (204) is fixedly connected between the two sides of the drag-reducing block (203) and the two circuit connection plates (201). The fuse-breaking auxiliary component (1) includes a housing (101). Spring blocks (104) are fixedly connected to both sides of the inner middle of the housing (101). Insulating arc-breaking cap two (103) and insulating arc-breaking cap one (102) are provided on the side of the two spring blocks (104) that are close to each other. The insulating arc-breaking cap two (103) and insulating arc-breaking cap one (102) are attached to the corresponding fuse-breaking body (204).

2. The intelligent fuse temperature measurement and protection device according to claim 1, characterized in that: The spring block (104) has a transverse arc-breaking spring (105) inside. The end of the arc-breaking spring (105) is fixedly connected to the first insulating arc-breaking cap (102) and the second insulating arc-breaking cap (103). The first insulating arc-breaking cap (102) and the second insulating arc-breaking cap (103) are in contact with each other.

3. The intelligent fuse temperature measurement and protection device according to claim 1, characterized in that: The insulating arc-breaking cap one (102) and the insulating arc-breaking cap two (103) have guide grooves (106) at their ends near the fusion body (204).

4. The intelligent fuse temperature measurement and protection device according to claim 1, characterized in that: The alarm sealing assembly (3) includes a snap-fit ​​sealing cover (301), and two limiting conductive legs (303) are fixedly connected to the bottom of the snap-fit ​​sealing cover (301). The circuit connection plate (201) has a limiting groove (202) corresponding to the position of the limiting conductive legs (303). The limiting conductive legs (303) and the limiting groove (202) are positioned and matched.

5. The intelligent fuse temperature measurement and protection device according to claim 4, characterized in that: An alarm light (302) is provided on the top of the snap-fit ​​sealing cover (301), and the two limiting conductive legs (303) are electrically connected to the positive and negative poles of the alarm light (302) respectively.

Images