CN220691956U - Fuse for protecting green energy circuit - Google Patents
Fuse for protecting green energy circuit Download PDFInfo
- Publication number
- CN220691956U CN220691956U CN202322387057.9U CN202322387057U CN220691956U CN 220691956 U CN220691956 U CN 220691956U CN 202322387057 U CN202322387057 U CN 202322387057U CN 220691956 U CN220691956 U CN 220691956U
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- Prior art keywords
- terminal
- fuse
- melt
- connecting hole
- wire pressing
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- 239000000155 melt Substances 0.000 claims abstract description 33
- 239000000126 substance Substances 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- YCKOAAUKSGOOJH-UHFFFAOYSA-N copper silver Chemical compound [Cu].[Ag].[Ag] YCKOAAUKSGOOJH-UHFFFAOYSA-N 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Abstract
The utility model relates to the technical field of fuses, and discloses a fuse for protecting a green energy circuit, which comprises an insulating tube, a first line pressing terminal, a second line pressing terminal, arc extinguishing substances and a melt; the first wire pressing terminal and the second wire pressing terminal are respectively arranged at two ends of the insulating tube; the melt is positioned in the insulating tube, one end of the melt is connected with the first wire pressing terminal, and the other end of the melt is connected with the second wire pressing terminal; the arc extinguishing substance is filled in the insulating tube; the first wire pressing terminal is provided with a first connecting hole, and the second wire pressing terminal is provided with a second connecting hole; the aperture of the first connecting hole is different from the aperture of the second connecting hole. The aperture of the first connecting hole of the first line pressing terminal is designed to be different from the aperture of the second connecting hole on the second line pressing terminal, so that the access of line pressing terminals with different specifications is considered when a customer selects a type, and the requirement of the customer for multi-environment scene application is met.
Description
Technical Field
The utility model relates to the technical field of fuses, in particular to a fuse for protecting a green energy circuit.
Background
With the rapid development of the photovoltaic industry, the safety protection of the photovoltaic power station inverter, the combiner box and various groups of serial lines is particularly important.
A fuse means a circuit protector which fuses a melt by heat generated by itself when a current exceeds a prescribed value for a certain period of time, thereby breaking a circuit.
Photovoltaic fuses are one of many fuse types. At present, the structural design of the fuse body of the photovoltaic fuse in the market generally has the uniform specification of two ends of the line pressing terminal, and the problem of considering the access of the line pressing terminal with various specifications when a customer is inconvenient to select is solved.
Accordingly, improvements in the art are needed.
The above information is presented as background information only to aid in the understanding of the present disclosure and is not intended or admitted to be prior art relative to the present disclosure.
Disclosure of Invention
The utility model provides a fuse for protecting a green energy circuit, which aims to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
a fuse for protecting a green energy circuit comprises an insulating tube, a first line pressing terminal, a second line pressing terminal, an arc extinguishing substance and a melt; wherein,
the first wire pressing terminal and the second wire pressing terminal are respectively arranged at two ends of the insulating tube;
the melt is positioned in the insulating tube, one end of the melt is connected with the first wire pressing terminal, and the other end of the melt is connected with the second wire pressing terminal;
the arc extinguishing substance is filled in the insulating tube;
the first wire pressing terminal is provided with a first connecting hole, and the second wire pressing terminal is provided with a second connecting hole;
the aperture of the first connecting hole is different from the aperture of the second connecting hole.
Further, in the fuse for green energy circuit protection, the first wire pressing terminal includes a first terminal outer cap and a first terminal inner cap;
the second wire pressing terminal comprises a second terminal outer cap and a second terminal inner cap;
the first terminal inner cap and the second terminal inner cap are respectively sleeved at two ends of the insulating tube;
one end of the melt is connected with the first terminal inner cap, and the other end of the melt is connected with the second terminal inner cap;
the first terminal outer cap is sleeved on the first terminal inner cap, and the second terminal outer cap is sleeved on the second terminal inner cap;
the first connecting hole is formed in the first terminal outer cap, and the second connecting hole is formed in the second terminal outer cap.
Further, in the fuse for green energy circuit protection, the first terminal inner cap and the second terminal inner cap are respectively in interference fit with the insulating tube.
Further, in the fuse for protecting a green energy circuit, the first terminal outer cap is in interference fit with the first terminal inner cap;
the second terminal outer cap is in interference fit with the second terminal inner cap.
Further, in the fuse for protecting green energy circuit, the melt is made of copper-silver alloy.
Further, in the fuse for green energy circuit protection, the melt includes a conductive substrate and at least one slit disposed on the conductive substrate;
the conductive matrix is made of copper;
the narrow diameter is made of silver.
Further, in the fuse for green energy circuit protection, the slit is provided in a bent shape.
Further, in the fuse for protecting a green energy circuit, the narrow diameter is bent in a V shape.
Further, in the fuse for green energy circuit protection, the arc extinguishing substance is completely filled or half filled in the insulating tube.
Further, in the fuse for protecting a green energy circuit, the arc extinguishing substance is quartz sand.
Compared with the prior art, the utility model has the following beneficial effects:
the fuse for protecting the green energy circuit comprises the insulating tube, the first wire pressing terminal, the second wire pressing terminal, the arc extinguishing substance and the melt, wherein the first wire pressing terminal and the second wire pressing terminal are designed into different specifications, namely, the aperture of a first connecting hole of the first wire pressing terminal is different from the aperture of a second connecting hole on the second wire pressing terminal, so that the fuse is greatly convenient for customers to consider the access of the wire pressing terminals with different specifications during the type selection, and the requirements of the customers for the application of the environment scene are met.
The utility model has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, taken in conjunction with the accompanying drawings and the detailed description, which illustrate certain principles of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fuse for green energy circuit protection according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a fuse for green energy circuit protection according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of a fuse for green energy circuit protection according to an embodiment of the present utility model.
Reference numerals:
an insulating tube 1, a first line pressing terminal 2, a second line pressing terminal 3, an arc extinguishing substance 4, a melt 5, a first connecting hole 6 and a second connecting hole 7;
a first terminal outer cap 21, a first terminal inner cap 22;
second terminal outer cap 31, second terminal inner cap 32.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. In addition, as one of ordinary skill in the art can appreciate, with technical development and new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
In the description of the present application, it is to be understood that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. Furthermore, any terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In addition, numerous specific details are set forth in the following detailed description in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements, and circuits have not been described in detail as not to unnecessarily obscure the present application.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
In view of the above-mentioned drawbacks of the conventional fuse, the following technical solutions have been proposed.
Referring to fig. 1 to 3, an embodiment of the present utility model provides a fuse for protecting a green energy circuit, which includes an insulating tube 1, a first wire pressing terminal 2, a second wire pressing terminal 3, an arc extinguishing substance 4 and a melt 5; wherein,
the first wire pressing terminal 2 and the second wire pressing terminal 3 are respectively arranged at two ends of the insulating tube 1;
the melt 5 is positioned in the insulating tube 1, one end of the melt is connected with the first wire pressing terminal 2, and the other end of the melt is connected with the second wire pressing terminal 3;
the arc extinguishing substance 4 is filled in the insulating tube 1;
a first connecting hole 6 is formed in the first wire pressing terminal 2, and a second connecting hole 7 is formed in the second wire pressing terminal 3;
the aperture of the first connecting hole 6 is different from the aperture of the second connecting hole 7.
It should be noted that in the prior art, the specifications of the two wire pressing terminals are the same, that is, the apertures of the connecting holes on the two wire pressing terminals are the same, so that when the specifications of the cables facing the two ends are different, the customer can only change the specifications of the original cables, in order to solve the problem, the apertures of the two connecting holes with the same original apertures, that is, the apertures of the first connecting hole 6 and the second connecting hole 7 are designed to be different, for example, the first connecting hole 6 can be designed to be a 10/12AWG American standard cable application aperture, the second connecting hole 7 can be designed to be a 6/8AWG American standard cable aperture, thereby realizing that the two ends can also be used with different cable specifications, facilitating the customer to use a cable with a thicker wire diameter when the input end is a heavy current, and the output end is connected with a protection branch, so as to use a cable with a thinner wire diameter, saving the cost, and facilitating the cable to select the environment under different current environments.
Referring again to fig. 3, in the present embodiment, the first wire pressing terminal 2 includes a first terminal outer cap 21 and a first terminal inner cap 22;
the second wire pressing terminal 3 comprises a second terminal outer cap 31 and a second terminal inner cap 32;
the first terminal inner cap 22 and the second terminal inner cap 32 are respectively sleeved at two ends of the insulating tube 1;
one end of the melt 5 is connected to the first terminal inner cap 22, and the other end is connected to the second terminal inner cap 32;
the first terminal outer cap 21 is sleeved on the first terminal inner cap 22, and the second terminal outer cap 31 is sleeved on the second terminal inner cap 32;
the first connecting hole 6 is formed in the first terminal outer cap 21, and the second connecting hole 7 is formed in the second terminal outer cap 31.
In this embodiment, the first terminal inner cap 22 and the second terminal inner cap 32 are respectively interference fit with the insulating tube 1.
The first terminal outer cap 21 is in interference fit with the first terminal inner cap 22;
the second terminal outer cap 31 is interference fit with the second terminal inner cap 32.
During assembly, the insulating tube 1 is first assembled with the inner caps at both ends, that is, the first inner terminal cap 22 and the second inner terminal cap 32, the melt 5 is welded to the first inner terminal cap 22 and the second inner terminal cap 32, then the first outer terminal cap 21 is assembled with the first inner terminal cap 22 in an interference manner, the filler, that is, the arc extinguishing substance 4 is filled, and finally the outer terminal cap at the other end, that is, the second outer terminal cap 31 is assembled in an interference manner.
In this embodiment, the melt 5 is made of copper-silver alloy.
It should be noted that, unlike the existing fuse adopting pure silver melt, the melt 5 in this embodiment is copper-silver alloy, so that the effect is similar, and the cost is reduced.
In this embodiment, the melt 5 comprises a conductive substrate and at least one throat disposed on the conductive substrate;
the conductive matrix is made of copper;
the narrow diameter is made of silver.
The narrow path has a small cross-sectional area, a large resistance, and a melting point lower than that of the conductive substrate, and can be quickly fused when a short circuit or current overload occurs, so that the semiconductor circuit can be effectively protected.
It will be appreciated that in this embodiment, only the diameter is made of silver and the conductive substrate is made of copper, which results in a significant cost reduction compared to the manner in which both the diameter and the conductive substrate are made of silver.
In this embodiment, the slit is provided in a bent shape.
It should be noted that, by setting at least one narrow diameter on the conductive substrate and bending the narrow diameter, the current limiting characteristic of the melt 5 is significantly improved, when the breaking fault current flows through the bent narrow diameter, the instantaneous current can be rapidly broken even if the instantaneous current does not reach the peak value, thereby improving the breaking capacity of the fuse under low overload current and improving the stability and safety coefficient of the product.
Illustratively, the throat is arranged in a V-shaped bend.
When the breaking fault current flows through the narrow diameter designed in the V-shaped bending way, the magnitude of the thrust from the energy of the current is the same at the left and right parts of the narrow diameter, but the directions are opposite, so that the breaking can be performed to the greatest extent, the electric gap between the two broken parts is enlarged, and the breaking failure can be prevented.
Referring again to fig. 3, in the present embodiment, the arc extinguishing substance 4 is completely filled or semi-filled in the insulating tube 1.
The arc extinguishing substance 4 is illustratively quartz sand.
The quartz sand can prevent the generation of electric arc and avoid fire.
Although the terms insulating tube, first wire-pressing terminal, second wire-pressing terminal, arc extinguishing substance, melt, first connection hole, second connection hole, etc. are used more in this application, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
The fuse for protecting the green energy circuit comprises the insulating tube, the first wire pressing terminal, the second wire pressing terminal, the arc extinguishing substance and the melt, wherein the first wire pressing terminal and the second wire pressing terminal are designed into different specifications, namely, the aperture of a first connecting hole of the first wire pressing terminal is different from the aperture of a second connecting hole on the second wire pressing terminal, so that the fuse is greatly convenient for customers to consider the access of the wire pressing terminals with different specifications during the type selection, and the requirements of the customers for the application of the environment scene are met.
In view of the foregoing, it will be evident to a person skilled in the art that the foregoing detailed disclosure may be presented by way of example only and may not be limiting. Although not explicitly described herein, those skilled in the art will appreciate that the present application is intended to embrace a variety of reasonable alterations, improvements and modifications to the embodiments. Such alterations, improvements, and modifications are intended to be proposed by this application, and are intended to be within the spirit and scope of the exemplary embodiments of this application.
Furthermore, certain terms in the present application have been used to describe embodiments of the present application. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. Thus, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.
It should be appreciated that in the foregoing description of embodiments of the present application, various features are grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the application. However, this is not to say that a combination of these features is necessary, and it is entirely possible for a person skilled in the art to extract some of them as separate embodiments to understand them at the time of reading this application. That is, embodiments in this application may also be understood as an integration of multiple secondary embodiments. While each secondary embodiment is satisfied by less than all of the features of a single foregoing disclosed embodiment.
Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the embodiments disclosed herein are by way of example only and not limitation. Those skilled in the art can adopt alternative configurations to implement the applications herein according to embodiments herein. Accordingly, embodiments of the present application are not limited to the embodiments precisely described in the application.
Claims (10)
1. The fuse for protecting the green energy circuit is characterized by comprising an insulating tube (1), a first line pressing terminal (2), a second line pressing terminal (3), an arc extinguishing substance (4) and a melt (5); wherein,
the first wire pressing terminal (2) and the second wire pressing terminal (3) are respectively arranged at two ends of the insulating tube (1);
the melt (5) is positioned in the insulating tube (1), one end of the melt is connected with the first wire pressing terminal (2), and the other end of the melt is connected with the second wire pressing terminal (3);
the arc extinguishing substance (4) is filled in the insulating tube (1);
a first connecting hole (6) is formed in the first wire pressing terminal (2), and a second connecting hole (7) is formed in the second wire pressing terminal (3);
the aperture of the first connecting hole (6) is different from the aperture of the second connecting hole (7).
2. The fuse for green energy circuit protection according to claim 1, wherein the first line-pressing terminal (2) includes a first terminal outer cap (21) and a first terminal inner cap (22);
the second wire pressing terminal (3) comprises a second terminal outer cap (31) and a second terminal inner cap (32);
the first terminal inner cap (22) and the second terminal inner cap (32) are respectively sleeved at two ends of the insulating tube (1);
one end of the melt (5) is connected with the first terminal inner cap (22), and the other end is connected with the second terminal inner cap (32);
the first terminal outer cap (21) is sleeved on the first terminal inner cap (22), and the second terminal outer cap (31) is sleeved on the second terminal inner cap (32);
the first connecting hole (6) is formed in the first terminal outer cap (21), and the second connecting hole (7) is formed in the second terminal outer cap (31).
3. The fuse for green energy circuit protection according to claim 2, wherein the first terminal inner cap (22) and the second terminal inner cap (32) are respectively interference fit with the insulating tube (1).
4. The fuse for green energy circuit protection according to claim 2, wherein the first terminal outer cap (21) is interference fit with the first terminal inner cap (22);
the second terminal outer cap (31) is in interference fit with the second terminal inner cap (32).
5. Fuse for green energy circuit protection according to claim 1, characterized in that the melt (5) is made of copper-silver alloy.
6. The fuse for green energy circuit protection of claim 5, wherein the melt (5) comprises a conductive substrate and at least one throat disposed on the conductive substrate;
the conductive matrix is made of copper;
the narrow diameter is made of silver.
7. The fuse for green energy circuit protection of claim 6, wherein said slit is provided in a bent configuration.
8. The fuse for green energy circuit protection according to claim 7, wherein the slit is bent in a V-shape.
9. The fuse for green energy circuit protection according to claim 1, characterized in that the arc extinguishing substance (4) is completely filled or half-filled inside the insulating tube (1).
10. The fuse for green energy circuit protection according to claim 9, characterized in that the arc extinguishing substance (4) is quartz sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322387057.9U CN220691956U (en) | 2023-09-04 | 2023-09-04 | Fuse for protecting green energy circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322387057.9U CN220691956U (en) | 2023-09-04 | 2023-09-04 | Fuse for protecting green energy circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220691956U true CN220691956U (en) | 2024-03-29 |
Family
ID=90409332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322387057.9U Active CN220691956U (en) | 2023-09-04 | 2023-09-04 | Fuse for protecting green energy circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220691956U (en) |
-
2023
- 2023-09-04 CN CN202322387057.9U patent/CN220691956U/en active Active
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