Disposable fusing fuse

Abstract

Semicircular concave surfaces are arranged on two end surfaces of the fuse, a fuse wire is arranged in the fuse, two ends of the fuse wire penetrate through the two semicircular concave surfaces and form a first protruding connecting part, and a second protruding connecting part is arranged on one side, close to the first protruding connecting part, of each semicircular concave surface. The second protruding connecting part is used for serving as a mechanical supporting point of the fuse, the connecting and fixing stability of the fuse and the external PCB is enhanced, the loosening or falling risk caused by vibration or impact is reduced, meanwhile, the third protruding connecting part is arranged, the connecting and fixing stability of the fuse and the external PCB is enhanced in an auxiliary mode, and the reliability of the fuse is improved. And the loosening or falling risk caused by vibration or impact is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuse technology field, more specifically, relate to a disposable fuse. BACKGROUND

[0002] The surface mount fuse is mainly applied to the overcurrent protection of printed circuit board and other circuits, and mainly plays an overload protection role. When the fuse is correctly arranged in the circuit, the fuse will be fused to cut off the current when the current abnormally rises to a certain height and heat, thereby protecting the safe operation of the circuit. When the circuit fails or abnormally, the current continuously rises, and the rising current can damage some important devices in the circuit or burn the circuit and even cause a fire. If the fuse is correctly arranged in the circuit, the fuse will be fused to cut off the current when the current abnormally rises to a certain height and heat, thereby playing a role in protecting the safe operation of the circuit.

[0003] The existing fuse is mostly single connection point, and single-point connection is easy to cause loosening and falling off under impact.

[0004] Therefore, the utility model provides a multi-point connected, durable, simple structure disposable fuse. INVENTION CONTENTS

[0005] The utility model provides a multi-point connected, durable, simple structure disposable fuse.

[0006] The disposable fuse includes a fuse 1, characterized in that: both end faces of the fuse 1 are provided with semicircular concave surfaces 2, a fuse link is arranged in the fuse 1, both ends of the fuse link pass through the two semicircular concave surfaces 2 and form a first protruding connecting part 3, one side of the two semicircular concave surfaces 2 close to the first protruding connecting part 3 is also provided with a second protruding connecting part 4, the second protruding connecting part 4 is used as a mechanical supporting point of the fuse 1, enhances the connection and fixation stability of the fuse 1 and an external PCB, and reduces the loosening or falling off risk caused by vibration or impact.

[0007] Further, the other side of the two semicircular concave surfaces 2 close to the first protruding connecting part 3 is also provided with a third protruding connecting part 5, which assists in enhancing the connection and fixation stability of the fuse 1 and the external PCB and reducing the loosening or falling off risk caused by vibration or impact.

[0008] Further, the third protruding connecting part 5 and the second protruding connecting part 4 are symmetrically arranged.

[0009] Further, the second protruding connecting part 4 and the third protruding connecting part 5 are one of spherical surfaces or planes at the top, so as to increase the contact area with the welding material and facilitate heat dissipation.

[0010] Further, the second protruding connecting part 4 and the third protruding connecting part 5 are made of silver-plated copper or nickel alloy, so that good electrical conductivity and corrosion resistance are achieved, the contact resistance is effectively reduced, and the service life and reliability of the fuse are improved.

[0011] Further, the second protruding connecting part 4 and the third protruding connecting part 5 are made of self-healing material, and the self-healing material is a conductive material containing microcapsules. When the fuse is short-circuited or overloaded, if the temperature exceeds the standard or cracks are generated due to mechanical damage, the material can automatically repair the cracks through the self-healing agent in the microcapsules, restore the contact performance, prolong the service life of the fuse 1, reduce the frequent replacement caused by accidental failure, and improve the reliability of the equipment.

[0012] Further, the top of the second protruding connecting part 4 and the third protruding connecting part 5 is different in shape. When the second protruding connecting part 4 is a spherical surface, the third protruding connecting part 5 is a flat surface, thereby playing a foolproof role.

[0013] Further, the second protruding connecting part 4 and the third protruding connecting part 5 are further provided with a reinforcing rib structure, which effectively disperses stress, reduces the risk of loosening or falling of the fuse 1, and enhances the stability of installation.

[0014] The beneficial effects of the present application are as follows: the disposable fuse of the present application is provided with a semicircular concave surface 2 at both ends of the fuse 1, a fuse wire is arranged in the fuse 1, the two ends of the fuse wire pass through the two semicircular concave surfaces 2 and form a first protruding connecting part 3, and a second protruding connecting part 4 is further arranged on one side of the first protruding connecting part 3, which is used as a mechanical support point of the fuse 1, enhances the stability of connection and fixation of the fuse 1 and an external PCB board, reduces the risk of loosening or falling caused by vibration or impact, and a third protruding connecting part 5 is further arranged, which assists in enhancing the stability of connection and fixation of the fuse 1 and the external PCB board, and reduces the risk of loosening or falling caused by vibration or impact. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure diagram of the disposable fuse of the present application.

[0016] Explanation of main element symbols

[0017] Fuse 1, semicircular concave surface 2, first protruding connecting part 3, second protruding connecting part 4, and third protruding connecting part 5.

[0018] The following specific embodiments will further illustrate the present application in combination with the above drawings. SPECIFIC EMBODIMENTS

[0019] Example 1:

[0020] As Figure 1 shown, it is the overall structure diagram of the disposable fuse.

[0021] The disposable fuse, comprising a fuse 1, characterized in that: both ends of the fuse 1 are provided with semicircular concave surfaces 2, a fuse wire is arranged in the fuse 1, both ends of the fuse wire pass through the two semicircular concave surfaces 2 and form a first protruding connecting part 3, one side of the two semicircular concave surfaces 2 close to the first protruding connecting part 3 is also provided with a second protruding connecting part 4, the second protruding connecting part 4 is used as a mechanical support point of the fuse 1, enhances the stability of the connection and fixation of the fuse 1 with an external PCB board, and reduces the risk of loosening or falling off caused by vibration or impact.

[0022] The other side of the two semicircular concave surfaces 2 close to the first protruding connecting part 3 is also provided with a third protruding connecting part 5, which assists in enhancing the stability of the connection and fixation of the fuse 1 with the external PCB board, and reducing the risk of loosening or falling off caused by vibration or impact.

[0023] The third protruding connecting part 5 is symmetrically arranged with the second protruding connecting part 4.

[0024] The top of the second protruding connecting part 4 and the third protruding connecting part 5 is one of a spherical surface or a plane, so as to increase the contact area with the welding material and facilitate heat dissipation.

[0025] The material of the second protruding connecting part 4 and the third protruding connecting part 5 is silver-plated copper or nickel alloy, so as to have good electrical conductivity and corrosion resistance, effectively reduce the contact resistance, and improve the service life and reliability of the fuse.

[0026] The material of the second protruding connecting part 4 and the third protruding connecting part 5 is a self-healing material, the self-healing material is a conductive material containing microcapsules, when the fuse has a short circuit or overload, if the temperature exceeds the standard or mechanical damage produces cracks, the material can automatically repair the cracks through the self-healing agent in the microcapsules, restore the contact performance, prolong the service life of the fuse 1, reduce the frequent replacement caused by accidental failure, and improve the reliability of the equipment.

[0027] The top shapes of the second protruding connecting part 4 and the third protruding connecting part 5 are different, when the second protruding connecting part 4 is a spherical surface, the third protruding connecting part 5 is a plane, which plays a foolproof role.

[0028] The second protruding connecting part 4 and the third protruding connecting part 5 are also provided with a reinforcing rib structure, which plays a role of effectively dispersing stress, reducing the loosening or falling off risk of the fuse 1 and enhancing the stability of installation.

[0029] The utility model discloses a disposable fuse link, both end faces of fuse link 1 are equipped with semicircle concave surface 2, fuse link 1 is equipped with fuse, and the both ends of fuse pass through two semicircle concave surface 2 and form first convex connecting part 3, one side of two semicircle concave surface 2 near first convex connecting part 3 is also equipped with second convex connecting part 4, and second convex connecting part 4 is used as mechanical support point of fuse link 1, enhances the stability of fuse link 1 and external PCB board connection fixed, reduces the risk of loosening or falling off due to vibration or impact, and third convex connecting part 5 is arranged simultaneously, which assists in enhancing the stability of fuse link 1 and external PCB board connection fixed, and reduces the risk of loosening or falling off due to vibration or impact.

[0030] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, several deformations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be according to the appended claims.

Claims

1. A one-time fusing fuse comprising a fuse (1), characterized in that: Both end faces of the fuse (1) are provided with semicircular concave surfaces (2), the fuse (1) is provided with a fuse, the two ends of the fuse pass through the two semicircular concave surfaces (2) and form a first protruding connecting part (3), and one side of the two semicircular concave surfaces (2) near the first protruding connecting part (3) is also provided with a second protruding connecting part (4), the second protruding connecting part (4) is used as a mechanical support point of the fuse (1), enhances the stability of the connection and fixation of the fuse (1) and the external PCB board, and reduces the risk of loosening or falling off caused by vibration or impact.

2. The one-time fusing fuse of claim 1, wherein: The other side of the two semicircular concave surfaces (2) near the first protruding connecting part (3) is also provided with a third protruding connecting part (5), which assists in enhancing the stability of the connection and fixation of the fuse (1) and the external PCB board, and reducing the risk of loosening or falling off caused by vibration or impact.

3. The one-time fusing fuse of claim 2, wherein: The third protruding connecting part (5) is symmetrically arranged with the second protruding connecting part (4).

4. The one-time fusing fuse of claim 2, wherein: The top of the second protruding connecting part (4) and the third protruding connecting part (5) is one of a spherical surface or a plane, which increases the contact area with the welding material and facilitates heat dissipation.

5. The one-time fusing fuse of claim 2, wherein: The second protruding connecting part (4) and the third protruding connecting part (5) are made of silver-plated copper or nickel alloy.

6. The one-time fusing fuse of claim 2, wherein: The second protruding connecting part (4) and the third protruding connecting part (5) are made of self-healing material, and the self-healing material is a conductive material containing microcapsules.

7. The one-time fusing fuse of claim 2, wherein: The top shapes of the second protruding connecting part (4) and the third protruding connecting part (5) are different, when the second protruding connecting part (4) is a spherical surface, the third protruding connecting part (5) is a plane, which plays a role of preventing mistakes.

8. The one-time fusing fuse of claim 2, wherein: The second protruding connecting part (4) and the third protruding connecting part (5) are also provided with a reinforcing rib structure, which plays a role of effectively dispersing stress, reducing the risk of loosening or falling off of the fuse (1) and enhancing the stability of installation.

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