Novel melt for fuse

Abstract

The utility model relates to a melt, in particular to a novel melt for a fuse, which comprises a melt body, the melt body is composed of a stem body and connecting parts which are arranged at two ends of the stem body and integrally formed with the stem body, the stem body is formed by enclosing a plurality of stem pieces, two ends of each stem piece are respectively connected with the connecting parts, and the stem pieces are connected with the connecting parts. A gap is formed between every two adjacent stem pieces, each stem piece comprises a plurality of conducting strips, the conducting strips are connected end to end to form a linear shape, every two adjacent conducting strips are connected through a narrow neck, grooves are formed in the two sides of the narrow neck, and the grooves are communicated with the gaps. The fuse is simple in structure and reasonable in design, can effectively save space, facilitates reduction of the cross section size of the fuse, and facilitates development of small-size and large-current fuse products.

Description

Technical Field

[0001] The utility model relates to a melt, in particular to a novel melt for a fuse. Background Technique

[0002] A low-voltage fuse is a circuit element that melts the melt by the heat generated by itself to disconnect the circuit when the current exceeds the specified value. Fuses are widely used in high- and low-voltage power distribution systems, control systems, and electrical equipment. As short-circuit and over-current protectors, they are one of the most commonly used protection components. The melt is an important part of the low-voltage fuse. It usually uses copper tape, silver tape, or silver-copper composite tape as the base material, and is stamped into the required shape through a mold, and various variable cross-sections are designed to meet the requirements of different voltage and current ratings.

[0003] At present, the melts on the market are basically stamped into a flat shape, and their structure is as Figure 1 shown. When it is installed in the fuse housing, as Figure 2 shown, there are relatively large gaps formed on both sides of the melt. When the rated current of the melt is relatively high, the wider the melt, the larger the gap, and the larger the volume of the corresponding fuse, which completely does not meet the development requirements of miniaturization of electronic products. Therefore, the inventor has improved the structure of the existing melt. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel melt for a fuse, which has the advantages of simple structure, reasonable design, can effectively save space, is beneficial to reducing the cross-sectional size of the fuse, and is convenient for developing fuse products with small size and large current, and solves the problems raised in the above technical background.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a novel melt for a fuse, the novel melt includes a melt body, the melt body is composed of a stem body and connecting parts arranged at both ends of the stem body and integrally formed with the stem body. The stem body is surrounded by a plurality of stem pieces, and both ends of each stem piece are respectively connected to the connecting parts. A gap is formed between two adjacent stem pieces. Each stem piece includes a plurality of conductive pieces, and the plurality of conductive pieces are connected end to end in a straight line. Two adjacent conductive pieces are connected by a narrow neck, and grooves are formed on both sides of the narrow neck, and the grooves are communicated with the gap.

[0006] Preferably, the melt body is a hollow tubular structure, and the cross-section of the melt body is circular, square or polygonal.

[0007] Preferably, the width value of the narrow neck is between 0.1 mm and 5 mm.

[0008] Preferably, the gaps are distributed along the length direction of the melt body, and the width value of the gaps is between 0.1 mm and 5 mm.

[0009] Preferably, a plurality of clamping grooves are provided at one end of the connecting portion away from the narrow neck, and the plurality of clamping grooves are distributed along the circumferential direction of the connecting portion.

[0010] Preferably, the clamping groove is U-shaped.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model provides a novel melt for a fuse. The novel melt includes a melt body, which is composed of a stem body and connecting portions provided at both ends of the stem body and integrally formed with the stem body. The overall structure is simple and reasonable. The stem body is surrounded by a plurality of stem pieces, so that the cross-section of the melt body is circular, square or polygonal. When the melt body is installed in the fuse housing, the gap with the fuse housing can be reduced, thereby effectively saving space, being beneficial to reducing the cross-sectional size of the fuse, facilitating the development of small-size and high-current fuse products, and having strong practicability, which is worthy of being vigorously promoted and applied. Description of the Drawings

[0013] Figure 1 is a structural diagram of the melt in the prior art of the present utility model;

[0014] Figure 2 is a cross-sectional view of the melt installed in the fuse housing in the prior art of the present utility model;

[0015] Figure 3 is a structural diagram of the melt body of the present utility model;

[0016] Figure 4 is a structural diagram of the stem body of the present utility model;

[0017] Figure 5 is a cross-sectional view of the melt body of the present utility model;

[0018] Figure 6 is a structural diagram of the stem piece of the present utility model;

[0019] Figure 7 is a cross-sectional view of the melt installed in the fuse housing of the present utility model;

[0020] Figure 8 is a cross-sectional view of the melt body in another embodiment of the present utility model.

[0021] The reference numerals and names in the drawings are as follows:

[0022] 1. Melt body; 11. Stem body; 111. Stem piece; 1111. Conductive piece; 1112. Narrow neck; 1113. Groove; 112. Gap; 12. Connecting part; 121. Clamping groove. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0025] In the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0026] Embodiment 1:

[0027] Please refer to Figures 3 to 7, the first embodiment provided by the present utility model: a novel fuse element for a fuse, the novel fuse element includes a fuse element body 1, the fuse element body 1 is a tubular structure with a hollow interior, and the cross-section of the fuse element body 1 is circular. In this embodiment, the fuse element body 1 is composed of a stem body 11 and connecting portions 12 provided at both ends of the stem body 11 and integrally formed with the stem body 11. The stem body 11 is formed by enclosing a plurality of stem pieces 111. Both ends of each stem piece 111 are respectively connected to the connecting portion 12, and a gap 112 is formed between two adjacent stem pieces 111. Each stem piece 111 includes a plurality of conductive pieces 1111, and the plurality of conductive pieces 1111 are connected end to end in a straight line. Each conductive piece 1111 is in an arc-shaped sheet structure. Two adjacent conductive pieces 1111 are connected by a narrow neck 1112, and grooves 1113 are formed on both sides of the narrow neck 1112. The grooves 1113 communicate with the gap 112. A plurality of clamping grooves 121 are provided at one end of the connecting portion 12 away from the narrow neck 1112, and the plurality of clamping grooves 121 are distributed along the circumferential direction of the connecting portion 12. In this embodiment, the clamping grooves 121 are in a U shape.

[0028] Specifically, the width value of the narrow neck 1112 is between 0.1 mm and 5 mm. In this embodiment, the width value of the narrow neck 1112 is 0.15 mm.

[0029] Specifically, the gap 112 is distributed along the length direction of the fuse element body 1, and the width value of the gap 112 is between 0.1 mm and 5 mm.

[0030] Please refer to again Figures 3 to 7 , by designing the fuse element body 1 in the present utility model into a tubular structure with a hollow interior and the stem body 11 being formed by enclosing a plurality of stem pieces 111, when the fuse element body 1 is installed in the fuse housing, the gap with the fuse housing can be reduced, thereby effectively saving space, being beneficial to reducing the cross-sectional size of the fuse, and facilitating the development of small-size and high-current fuse products.

[0031] Embodiment Two:

[0032] Please refer to Figure 8 , the second embodiment provided by the present utility model: a novel fuse element for a fuse. The structure of this embodiment is the same as that of Embodiment One, and the difference lies in that: the fuse element body 1 is square. It should be noted that in some other embodiments, the fuse element body 1 is polygonal or of other shapes, which will not be elaborated here.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A new type of fuse for a fuse, characterized in that: The invention comprises a melt body (1), wherein the melt body (1) is composed of a stem body (11) and a connecting portion (12) arranged at both ends of the stem body (11) and formed integrally with the stem body (11), wherein the stem body (11) is surrounded by a plurality of stem pieces (111), the two ends of each stem piece (111) are respectively connected to the connecting portion (12), a gap (112) is formed between two adjacent stem pieces (111), each stem piece (111) comprises a plurality of conductive pieces (1111), the plurality of conductive pieces (1111) are connected end to end in a straight line, the two adjacent conductive pieces (1111) are connected via a narrow neck (1112), and grooves (1113) are formed on both sides of the narrow neck (1112), and the grooves (1113) are connected to the gap (112).

2. A new type of fuse for fuse according to claim 1, characterized in that: The melt body (1) is a tubular structure with a hollow interior, and the cross section of the melt body (1) is circular, square or polygonal.

3. A new type of fuse for fuse according to claim 1, characterized in that: The width of the narrow neck (1112) is between 0.1 mm and 5 mm.

4. A new type of fuse for fuse according to claim 1, characterized in that: The gap (112) is distributed along the length direction of the melt body (1), and the width of the gap (112) is between 0.1 mm and 5 mm.

5. A new type of fuse for fuse according to claim 1, characterized in that: A plurality of clamping grooves (121) are provided at one end of the connecting portion (12) away from the narrow neck (1112), and the plurality of clamping grooves (121) are distributed along the circumferential direction of the connecting portion (12).

6. A new type of fuse for fuse according to claim 5, characterized in that: The clamping groove (121) is in a U shape.

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