CN219350134U - But fast assembly's square fuse - Google Patents
But fast assembly's square fuse Download PDFInfo
- Publication number
- CN219350134U CN219350134U CN202320811331.8U CN202320811331U CN219350134U CN 219350134 U CN219350134 U CN 219350134U CN 202320811331 U CN202320811331 U CN 202320811331U CN 219350134 U CN219350134 U CN 219350134U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- shell
- melt
- square fuse
- square
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000155 melt Substances 0.000 claims abstract description 27
- 238000005452 bending Methods 0.000 claims description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Fuses (AREA)
Abstract
The utility model relates to the field of circuit protection, in particular to a square fuse capable of being assembled quickly, which comprises a shell, a melt and a cover plate component; the cover plate components are arranged on the peripheries of the two ends of the shell in an interference mode; one end of the melt is electrically connected with the cover plate component at one end of the shell, and the other end of the melt is hooked on the end wall at the other end of the shell and is fixed through the cover plate component. The square fuse of the utility model has simple structure and can be assembled quickly.
Description
Technical Field
The utility model relates to the field of circuit protection, in particular to a square fuse which can be assembled conveniently and quickly.
Background
The existing square fuse is formed by fixing screws through complex connection modes such as a shell, a gasket, a cover plate and the like. Because the apron needs to pass through the fix with screw on the shell, consequently restrict shell pipe wall thickness, there is the risk that falls porcelain, porcelain and split when the shell pipe wall is too thin to beat the screw, and simultaneously, the deviation when assembling plus the accumulative shape tolerance of part is difficult to guarantee product flatness, and the uniformity is not good. For example, chinese patent CN208352250U discloses a special square fuse for manual maintenance of switch MSD of electric vehicle, which requires fixing cover plate to housing by screws.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a square fuse which can be assembled quickly, a cover plate is not required to be fixed on a shell by screws, the shell wall of the shell can be thinned as far as possible under the condition of meeting the strength of arc impact, the shell volume of the square fuse is reduced, and meanwhile, the quick assembly can be realized.
In order to solve the technical problems, the technical scheme provided by the utility model is that the square fuse capable of being assembled quickly comprises a shell, a melt and a cover plate component; the cover plate components are arranged on the peripheries of the two ends of the shell in an interference mode; one end of the melt is electrically connected with the cover plate component at one end of the shell, and the other end of the melt is hooked on the end wall at the other end of the shell and is fixed through the cover plate component.
Preferably, one end of the melt, which is hooked on the end wall of the shell, is in a bending structure, and a part of the bending structure is located at the periphery of the shell and between the cover plate assembly and the shell.
Preferably, a tin-melting layer is arranged at the position of the cover plate assembly corresponding to the bending structure of the melt; when the cover plate assembly is assembled on the shell, the tin melting layer is melted to be in contact with the bending structure of the melt.
Preferably, the bending structure is a U-shaped structure.
Preferably, the cover plate assembly comprises an annular member and a cover plate, wherein the cover plate is connected with one end of the annular member in a conductive manner and seals one end of the annular member connected with the cover plate; the ring is in interference fit with the housing end.
Preferably, a filling hole for filling the arc extinguishing medium is formed in the cover plate, and the filling hole is sealed by a plug.
Preferably, the ring member and the cover plate are electrically connected by welding or integrally formed.
Preferably, the cover plate is of an L-shaped structure.
The square fuse has the advantages of simple structure, fewer parts and quick assembly; the cover plate integrally formed with the wiring terminal is assembled on the shell in an interference manner, so that the square fuse can be quickly assembled; because the cover plate is not required to be fixed by using screws, the shell wall of the shell can be as thin as possible, thereby reducing the volume of the shell or the volume of an inner cavity in the shell; the occupied space can be reduced by reducing the volume of the shell, or the filling quantity of the arc extinguishing medium can be increased by increasing the volume of the inner cavity in the shell, so that arc extinguishing is facilitated.
Drawings
Fig. 1 is a schematic view of the explosion structure of a square fuse of the present utility model.
Fig. 2 is a schematic diagram of a cover plate assembly.
Detailed Description
The above technical solution, the preferred embodiments are now described in detail with reference to the drawings.
Referring to fig. 1 and 2, the square fuse of the present utility model includes a housing 1, a melt 2, and a cover plate assembly 3. The outer shell 1 is of a square structure as a whole, and round guide angles are machined at four corners of the square structure. The housing 1 may be made of ceramic or plastic, and is integrally molded by injection molding.
The melt 2, one end of which is a bending structure 21, the bending structure is a U-shaped structure, the bottom of the U-shaped structure at one end of the melt is positioned at the end face of the end wall of the shell, and one side of the U-shaped structure is positioned outside the shell.
The cover plate component 3 comprises a ring-shaped piece 31 and a cover plate 32, and the materials are all conductive materials. The inner wall of the ring member 31 is the same shape as the outer peripheral ends of the housing, and the ring member 31 can be fitted on the outer periphery of the housing by interference fit at the time of fitting. The cover plate 32 has an L-shaped structure, and the cover plate 32 is located at one end of the ring member 31 to close one end of the ring member 31. A filling hole 321 penetrating the cover plate 32 is formed at one end of the cover plate 32 closing the ring member 31, and a plug 322 is plugged into the filling hole 321 to seal the filling hole 321. The ring 31 and the cover plate 32 are integrally connected by welding or integrally formed by machining. The cover plate assembly 3 can be manufactured in batches in advance for standby.
During assembly, one end of a melt 2 is welded on a cover plate 32 of one end cover plate assembly 3, one end of a bending structure 21 of the melt 2 penetrates through a shell 1, the cover plate assembly 3 welded with the melt 2 is assembled on the periphery of one end of the shell 1 in an interference fit mode, the bending structure 21 of the melt 2 is hooked on the end wall of the other end of the shell 1, and a layer of soldering tin is coated at the position, corresponding to the bending end of the melt 2, of the cover plate 32 of the other cover plate assembly 3 in advance; then the cover plate component is assembled at the other end of the shell 1 in an interference fit mode, the part of the bending structure 21 of the melt 2, which is positioned at the periphery of the shell, is positioned between the annular piece 31 of the cover plate component 1 and the periphery of the shell 1, meanwhile, the bottom of the bending structure of the melt 2 is contacted with a tin melting layer on the inner surface of the cover plate component, then high-frequency tin melting treatment is carried out, the cover plate component 3 and the melt 2 are firmly in conductive contact, and the gap between the cover plate component and the melt bending structural part is closed through tin melting. Finally, the arc extinguishing medium is filled into the shell 1 through the filling holes 321 on the cover plate assemblies 3 at the two ends, and then the filling holes 321 are sealed by plugs 322, so that the assembly is completed.
The square fuse has few parts, simple structure and quick assembly.
Claims (8)
1. A square fuse capable of being assembled quickly is characterized by comprising a shell, a melt and a cover plate component; the cover plate components are arranged on the peripheries of the two ends of the shell in an interference mode; one end of the melt is electrically connected with the cover plate component at one end of the shell, and the other end of the melt is hooked on the end wall at the other end of the shell and is fixed through the cover plate component.
2. The square fuse of claim 1, wherein the melt is hooked at an end of the housing end wall in a bent configuration, a portion of the bent configuration being located at the housing periphery and between the cover assembly and the housing.
3. The square fuse according to claim 2, wherein a tin layer is provided at a cover plate position of the cover plate assembly corresponding to the bending structure of the melt; when the cover plate component is assembled on the shell, the tin melting layer is melted to be in contact with the bending structure of the melt.
4. The square fuse according to claim 2, wherein the bent structure is a U-shaped structure.
5. The square fuse of claim 1, wherein the cover plate assembly comprises a ring member and a cover plate, the cover plate being conductively connected to one end of the ring member and closing one end of the ring member connected to the cover plate; the ring is in interference fit with the housing end.
6. The square fuse according to claim 5, wherein a filling hole for filling an arc extinguishing medium is opened in the cover plate, and the filling hole is sealed by a plug.
7. The square fuse according to claim 5, wherein the ring member and the cover plate are electrically connected by welding or integrally formed.
8. The square fuse according to claim 5, wherein the cover plate has an L-shaped configuration.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320048614 | 2023-01-09 | ||
| CN2023200486141 | 2023-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219350134U true CN219350134U (en) | 2023-07-14 |
Family
ID=87104528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320811331.8U Active CN219350134U (en) | 2023-01-09 | 2023-04-13 | But fast assembly's square fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219350134U (en) |
-
2023
- 2023-04-13 CN CN202320811331.8U patent/CN219350134U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |