CN220796637U - Double conductive spring with molten core - Google Patents
Double conductive spring with molten core Download PDFInfo
- Publication number
- CN220796637U CN220796637U CN202322382656.1U CN202322382656U CN220796637U CN 220796637 U CN220796637 U CN 220796637U CN 202322382656 U CN202322382656 U CN 202322382656U CN 220796637 U CN220796637 U CN 220796637U
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- China
- Prior art keywords
- spring
- mounting base
- conductive
- fixedly connected
- fuse
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- 239000000463 material Substances 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910000639 Spring steel Inorganic materials 0.000 claims description 7
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Abstract
The utility model relates to the technical field of fuses, in particular to a fuse core double-conductive spring, which comprises: a conductive mechanism; the conductive mechanism comprises a mounting base, wherein one end of the mounting base is fixedly connected with an inner spring, one end of the mounting base is fixedly connected with an outer spring, and the inner spring is arranged on the inner side of the outer spring; the other end of the outer spring is fixedly connected with a connecting sheet, and one end of the connecting sheet is fixedly connected with the other end of the inner spring; through setting up conductive mechanism, adopt the dual elastic structure design of interior spring and outer spring, compare in the design of current single conductive spring, this has enlarged the flow area of electric current, has reduced the electric current through the spring, and the electric current can be scattered the guide this moment, avoids the electric current to concentrate and passes through, and then has reduced conductive mechanism overheated probability to the life of extension spring guarantees the safe operation of fuse material.
Description
Technical Field
The utility model relates to the technical field of fuses, in particular to a fuse core double-conductive spring.
Background
Fuses, also known as fuses. The IEC127 standard defines it as "fuse-link". The circuit is an electrical element which is arranged in a circuit and ensures the safe operation of the circuit. The fuse is a short-circuit protector, which is widely used in power distribution systems and control systems and mainly used for short-circuit protection or severe overload protection. Currently, there are many methods for controlling the flow of liquid. The special fuse for wind power photovoltaic power generation mostly adopts a replaceable fuse core. At present, the melting core is installed inside the fuse through a conductive spring.
Because the conductive spring and the fuse core inevitably generate heat under the actions of the Joule effect and the resistor when the current passes through the fuse core, when the external wind force is larger, the current passing through the fuse can be increased, the heating value of the conductive spring and the fuse core can be increased, and because the special fuse for wind power photovoltaic power generation is used outdoors, the protection level of the special fuse is IP68, the fuse core and the conductive spring are in a closed environment, the temperature of the conductive spring can be increased, the conductive spring is in a high-temperature state for a long time, the conductive spring can be gradually loosened, the elastic modulus of the conductive spring can be reduced, and the service life of the conductive spring is shortened.
Disclosure of Invention
The utility model aims to solve the problems, and solves the problems that the conductive spring for the fuse core special for wind power photovoltaic power generation is easy to be in a high-temperature state and the service life of the conductive spring is shortened.
A fusible core double conductive spring comprising: a conductive mechanism; the electric conduction mechanism comprises an installation base, one end of the installation base is fixedly connected with an inner spring, one end of the installation base is fixedly connected with an outer spring, the inner spring is arranged on the inner side of the outer spring, the electric conduction mechanism is arranged, the double elastic structure design of the inner spring and the outer spring is adopted, compared with the design of the existing single electric conduction spring, the electric conduction mechanism enlarges the current flow area, reduces the current quantity of the electric conduction mechanism, at the moment, the electric current can be led in a dispersed mode, the current is prevented from passing through in a concentrated mode, the overheat probability of the electric conduction mechanism is further reduced, the service life of the spring is prolonged, and the safe operation of the fuse material is guaranteed.
Preferably, the other end fixedly connected with connection piece of outer spring, the one end of connection piece and the other end fixed connection of inner spring, this can ensure that inner spring and outer spring can effectually establish relation with melting core, avoid because of melting core can't establish relation with inner spring and outer spring simultaneously because of undersize, and then ensured that the electric current can freely flow through inner spring and outer spring.
Preferably, the mounting base, the inner spring, the outer spring and the connecting sheet are all made of stainless steel spring steel materials, so that the whole conductive mechanism is more resistant to high temperature, and the influence of high temperature on the performance of the conductive mechanism is reduced.
Preferably, corners of the mounting base and the connecting sheet are rounded, so that the probability that the mounting base and the connecting sheet are clamped with the inner wall of the fuse during mounting and telescopic operation can be reduced, and the conductive mechanism can normally play a role, so that the use smoothness is higher.
Preferably, one end fixedly connected with guard post of mounting base, the guard post sets up in the inboard of interior spring, through setting up the guard post, after the connection piece is extrudeed to the assigned position, connection piece and guard post contact this moment to the guard post stops the connection piece, avoids the connection piece to continue compression interior spring and outer spring, in order to avoid interior spring and outer spring to damage the probability because of being excessively extruded, and then ensured the intact of interior spring and outer spring.
Preferably, the protective column is a stainless steel spring steel material component, and the mounting base and the protective column are integrally molded, so that the manufacturing process of the conductive mechanism can be simplified, and the manufacturing complexity of the conductive mechanism structure is reduced.
The beneficial effects of the utility model are as follows:
1. by arranging the conductive mechanism and adopting the double elastic structure design of the inner spring and the outer spring, compared with the existing design of a single conductive spring, the current flow area is enlarged, the current quantity passing through the spring is reduced, at the moment, the current can be dispersed and guided, the current is prevented from passing through intensively, the overheating probability of the conductive mechanism is further reduced, the service life of the spring is prolonged, and the safe operation of the fuse is ensured;
2. through setting up the guard post, after the connection piece was extruded to the assigned position, connection piece and guard post contact this moment to the guard post stops the connection piece, avoids connection piece to continue compression inner spring and outer spring, in order to avoid inner spring and outer spring to damage the probability because of being excessively extruded, and then ensured inner spring and outer spring's intact.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is an exploded view of the present utility model;
fig. 4 is a schematic structural view of a connecting sheet in the present utility model.
In the figure: 1. a conductive mechanism; 11. a mounting base; 12. an inner spring; 13. an outer spring; 14. a connecting sheet; 15. and (5) protecting the column.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The specific implementation method comprises the following steps: as shown in fig. 1-4, the fusible core double conductive spring comprises: a conductive mechanism 1; wherein, conductive mechanism 1 includes mounting base 11, and mounting base 11's one end fixedly connected with inner spring 12, mounting base 11's one end fixedly connected with outer spring 13, inner spring 12 sets up in the inboard of outer spring 13.
As shown in fig. 2, 3 and 4, the other end of the outer spring 13 is fixedly connected with a connecting sheet 14, and one end of the connecting sheet 14 is fixedly connected with the other end of the inner spring 12; the mounting base 11, the inner spring 12, the outer spring 13 and the connecting sheet 14 are all stainless steel spring steel material components { stainless steel spring steel is also called martensitic stainless steel, and is stainless steel with adjustable mechanical properties through heat treatment, the hardness after quenching is higher, and different tempering temperatures have different strength and toughness combinations }; corners of the mounting base 11 and the connecting piece 14 are rounded.
As shown in fig. 2 and 3, one end of the mounting base 11 is fixedly connected with a protection column 15, and the protection column 15 is arranged on the inner side of the inner spring 12; the protection post 15 is stainless steel spring steel material component, and mounting base 11 and protection post 15 are integrated into one piece casting { when the installer pushes away the in-process of connection piece 14 through the melt core, connection piece 14 compresses interior spring 12 and outer spring 13 simultaneously, connection piece 14 is constantly close to protection post 15 simultaneously, after connection piece 14 is pressed to the assigned position, connection piece 14 and protection post 15 contact this moment, and protection post 15 stops connection piece 14, avoid connection piece 14 to continue compressing interior spring 12 and outer spring 13, in order to avoid interior spring 12 and outer spring 13 to damage the probability because of being excessively pressed, and then ensured interior spring 12 and outer spring 13's well }.
When the fuse is used, after an installer connects the installation base 11 with the wires inside the fuse, the installer can contact one end of the fuse with the other end of the connecting piece 14 and push the connecting piece 14 through one end of the fuse, the connecting piece 14 is matched with the installation base 11 to simultaneously compress the inner spring 12 and the outer spring 13, and after the fuse is completely installed inside the fuse, the inner spring 12 and the outer spring 13 are matched with each other to tightly abut the other end of the fuse with the other wire connector of the fuse through the connecting piece 14.
During normal operation of the fuse, current is conducted through the wire to the mounting base 11, where it is free to flow through the inner spring 12 and the outer spring 13 to the tab 14, then through the tab 14 to the fuse core, through the fuse core to the other wire connector, and finally out of the fuse through the other wire connector. Compared with the existing design of a single conductive spring, the conductive mechanism 1 adopts the designs of the inner spring 12 and the outer spring 13, so that the flow area of current is enlarged, the current quantity passing through the springs is reduced, the current can be led in a dispersed way, the current is prevented from passing through in a concentrated way, the probability of overheating of the conductive mechanism 1 is further reduced, the service life of the springs is prolonged, and the safe operation of the fuse is ensured.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The double conductive spring of melt core, its characterized in that includes:
a conductive mechanism (1);
the conductive mechanism (1) comprises a mounting base (11), one end of the mounting base (11) is fixedly connected with an inner spring (12), one end of the mounting base (11) is fixedly connected with an outer spring (13), and the inner spring (12) is arranged on the inner side of the outer spring (13).
2. The fusible core double conductive spring of claim 1, wherein: the other end of the outer spring (13) is fixedly connected with a connecting sheet (14), and one end of the connecting sheet (14) is fixedly connected with the other end of the inner spring (12).
3. The fusible core double conductive spring as claimed in claim 2, wherein: the mounting base (11), the inner spring (12), the outer spring (13) and the connecting sheet (14) are all stainless steel spring steel material components.
4. The fusible core double conductive spring as claimed in claim 2, wherein: corners of the mounting base (11) and the connecting sheet (14) are rounded.
5. The fusible core double conductive spring of claim 1, wherein: one end of the mounting base (11) is fixedly connected with a protection column (15), and the protection column (15) is arranged on the inner side of the inner spring (12).
6. The fusible core double conductive spring of claim 5 wherein: the protection column (15) is a stainless steel spring steel material component, and the mounting base (11) and the protection column (15) are integrally molded and cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322382656.1U CN220796637U (en) | 2023-09-04 | 2023-09-04 | Double conductive spring with molten core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322382656.1U CN220796637U (en) | 2023-09-04 | 2023-09-04 | Double conductive spring with molten core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220796637U true CN220796637U (en) | 2024-04-16 |
Family
ID=90666381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322382656.1U Active CN220796637U (en) | 2023-09-04 | 2023-09-04 | Double conductive spring with molten core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220796637U (en) |
-
2023
- 2023-09-04 CN CN202322382656.1U patent/CN220796637U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |