CN216871885U

CN216871885U - Fuse element fixing assembly and fuse

Info

Publication number: CN216871885U
Application number: CN202220029511.6U
Authority: CN
Inventors: 郑翠红; 李伟; 杨佳明; 李晓峰
Original assignee: Beijing Dynamic Power Co Ltd
Current assignee: Beijing Dynamic Power Co Ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-07-01
Anticipated expiration: 2032-01-06

Abstract

Embodiments of the present application provide a fuse and a fuse holder assembly, the fuse holder assembly comprising: a sheet-like body; the two fixing parts are detachably arranged on one side surface of the sheet-shaped body, and an installation gap for fixing the melt is formed between the two fixing parts. This application can be when needs increase heat radiating area, connect many with wire or major diameter wire, change the slice body of bigger area, and then increase heat radiating area, or make the slice body can support to connect many with wire or major diameter wire.

Description

Fuse element fixing assembly and fuse

Technical Field

The embodiment of the application relates to the technical field of fuses, in particular to a fuse-element fixing assembly and a fuse.

Background

The fuse is a common device of a base station communication power supply and plays a short-circuit protection role in a circuit. The fuse mainly comprises fuse-element and fuse-element base (the insulator pad of installation fuse-element), and during the use, the fuse-element concatenates in the circuit of being protected, and when the short circuit trouble took place for the circuit, the fuse-element was by instantaneous fusing and the disjunction circuit plays the guard action. For the melt with the capacity of 800A and above, a plurality of leads or large-diameter leads need to be connected, and because the contact area of the copper bar is fixed, the connection of the plurality of leads or the large-diameter leads is not supported, and the heat dissipation area cannot be increased.

SUMMERY OF THE UTILITY MODEL

In order to increase heat dissipation area, support the access of many wires or major diameter wire, the embodiment of this application provides a fuse and fuse.

In a first aspect of the present application, there is provided a melt securing assembly comprising:

a sheet-like body;

the two fixing parts are detachably arranged on one side surface of the sheet-shaped body, and an installation gap for fixing the melt is formed between the two fixing parts.

In one possible implementation manner, the fixing portion includes a vertical portion and a bent portion, the bent portion is disposed on one side surface of the sheet-shaped body, and the mounting gap is formed between the two vertical portions; the vertical part and the fixing part are fixedly connected or integrally formed.

In one possible implementation manner, the bent portion and one side surface of the sheet-shaped body are connected by a bolt.

In a possible implementation manner, fixing through holes are formed in the two vertical portions, the fixing through holes penetrate through the vertical portions in the thickness direction of the vertical portions, and the axes of the two fixing through holes are overlapped.

In a possible implementation manner, at least one connecting hole is arranged on the sheet-shaped body, and the connecting hole penetrates through the sheet-shaped body in the thickness direction of the sheet-shaped body.

In one possible implementation, two insulating mounting posts are provided on the other side of the sheet-like body.

In one possible implementation, the sheet-like body and the fixing portion are both made of copper.

In a second aspect of the present application, there is provided a fuse including:

two melt securing assemblies as described in any one of the first aspect;

the melt fixing component is arranged on one side of the melt, and the other melt fixing component is arranged on the other side of the melt.

In a possible implementation manner, one side of the melt and the other side of the melt are both provided with a connection lug, and the connection lug is arranged at a mounting gap in the melt fixing component and connected with the fixing part.

In the fixed subassembly of fuse-element and fuse that this application embodiment provided, set up two fixed parts through symmetry and detachably on a side at the lamellar body, the installation clearance that is used for installing the fuse-element has between two fixed parts, because the fixed part setting is on a side of lamellar body and can dismantle with the lamellar body and be connected, thereby when needs increase heat radiating area, connect many with wire or major diameter wire, can change the lamellar body of bigger area, and then increase heat radiating area, or make the lamellar body can support to connect many with wire or major diameter wire, and when changing the bigger lamellar body of area, because two fixed parts are all installed on one of them side, the fixed part can not restrict the installation of lamellar body.

It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the application, nor is it intended to limit the scope of the application. Other features of the present application will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of various embodiments of the present application will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:

FIG. 1 shows a schematic structural view of a melt securing assembly according to an embodiment of the present application.

Fig. 2 shows a schematic structural diagram of a fuse according to an embodiment of the present application.

Wherein the content of the first and second substances,

10. a sheet-like body;

11. a wiring hole;

12. an insulated terminal;

20. fixing part

21. A mounting gap;

22. a vertical portion;

23. a bending section;

30. melting the materials;

31. and (5) connecting the lugs.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

Embodiments of the present application provide a melt fixing assembly, see fig. 1, comprising: the fuse element comprises a sheet body 10 and two fixing parts 20, wherein the two fixing parts 20 are detachably arranged on one side surface of the sheet body 10, and a mounting gap 21 is arranged between the two fixing parts 20, and the mounting gap 21 is used for mounting a fuse element.

For the embodiment of the application, when the melt fixing component is used for connecting a melt with a capacity of 800A or above, because the current passing through the melt is large, a plurality of wires or a large-diameter wire need to be connected to the sheet body 10, but because the contact area of the sheet body 10 is fixed, the connection of the plurality of wires or the large-diameter wire is not supported, and the heat dissipation area cannot be increased. In this regard, in the present embodiment, two fixing portions 20 are detachably provided on the sheet body 10. That is, when the contact area of the sheet-shaped body 10 needs to be increased, the sheet-shaped body 10 with a larger contact area can be replaced, so as to increase the heat dissipation area, or enable the sheet-shaped body 10 to support connection of multiple wires or large-diameter wires.

When the sheet-shaped body 10 is replaced, the sheet-shaped body 10 with different shapes can be selected according to the installation space or the actual requirement. For example, due to the limitation of the installation space, the sheet body 10 may be configured in a special shape (e.g., an oval shape, a diamond shape, or an irregular shape) that meets the installation space requirement, or the sheet body 10 may be configured in a rectangular shape. It should be noted that the sheet-like body 10 and the fixing portion 20 are made of conductive materials. In a possible embodiment, both the sheet-like body 10 and the fixing portion 20 are made of copper.

In order to facilitate the installation of the melt in the installation gap 21 when fixing the melt, coaxial through holes are formed in the two fixing portions 20 to facilitate the fixation of the melt by bolts. In a possible embodiment, the two fixing portions 20 may be symmetrically disposed on one side of the sheet body 10 for aesthetic reasons.

With continued reference to fig. 1, the fixing portion 20 may include an upright portion 22 and a bent portion 23, as can be seen from fig. 1, in the present embodiment, the fixing portion 20 is substantially "L" shaped, and is fixedly connected to one side surface of the sheet-like body 10 through the bent portion 23, and the two upright portions 22 jointly define the above-mentioned installation gap 21.

The bent portion 23 may be fixedly connected to the sheet body 10 by a bolt. The vertical portion 22 and the bent portion 23 may be connected by welding or may be formed by integral molding.

Further, all seted up coaxial fixed orifices on two vertical portions 22 and fixed the fuse-element, and the fixed orifices runs through vertical portion 22 on the array direction of fixed part 10, owing to adopt the mode of bolt fastening when fixed fuse-element, for the convenience of wearing to establish of bolt, can be so that the axis coincidence of two fixed orificess.

Since the leads connected to the sheet-shaped body 10 are connected by the terminals, at least one wiring hole 11 may be formed in the sheet-shaped body 10 in order to allow the sheet-shaped body 10 to connect multiple leads, and the wiring hole 11 penetrates the sheet-shaped body 10 in the thickness direction of the sheet-shaped body 10. It should be noted that the number of the wiring holes 11 can be selected according to actual needs, or a plurality of wiring holes 11 are formed in advance, and when necessary, a lead can be connected to the corresponding wiring hole 11.

When the fuse is composed of the fuse fixing component, an insulating base needs to be mounted on the fuse fixing component, so that two insulating terminals 12 may be disposed on the other side surface of the chip body 10 for connecting the insulating base, and of course, the number of the insulating terminals 12 may be one or more, which is not limited in this embodiment of the present application.

The fuse device of the present embodiment further includes two of the above-described fuse element fixing assemblies and a fuse element 30, one of the fuse element fixing assemblies is disposed on one side of the fuse element 30, and the other fuse element fixing assembly is disposed on the other side of the fuse element 30, as shown in fig. 2.

Further, an engaging lug 31 is provided at each of one side of the melt 30 and the other side of the melt 30, and the engaging lug 31 is provided at the mounting gap 21 of the melt fixing assembly and is connected with the fixing portion 20 of the melt fixing assembly by a bolt to form the fuse.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A melt securing assembly, comprising:

a sheet-like body;

2. The melt-securing assembly of claim 1, wherein the securing portion includes a vertical portion and a bent portion, the bent portion being disposed on one side of the sheet-like body and the mounting gap being formed between the two vertical portions; the vertical part and the fixing part are fixedly connected or integrally formed.

3. The melt-securing assembly of claim 2, wherein the bent portion and one side of the sheet-like body are connected by a bolt.

4. The melt fixing assembly according to claim 2, wherein fixing through holes are formed in both of the vertical portions, the fixing through holes penetrate through the vertical portions in the thickness direction of the vertical portions, and the axes of the fixing through holes coincide.

5. The melt-holding assembly of claim 1, wherein said plate-like body is provided with at least one attachment hole extending therethrough in a thickness direction of said plate-like body.

6. The melt-holding assembly of claim 1, wherein two insulative mounting posts are provided on the other side of the wafer body.

7. The melt holder assembly of claim 1, wherein the plate body and the holder portion are each made of copper.

8. A fuse, comprising:

two melt securing assemblies according to any one of claims 1 to 7;

9. The fuse of claim 8, wherein one side of the fuse body and the other side of the fuse body are each provided with an engaging lug disposed at a mounting gap in the fuse body fixing assembly and connected with the fixing portion.