CN214226819U - Composite fuse structure - Google Patents
Composite fuse structure Download PDFInfo
- Publication number
- CN214226819U CN214226819U CN202120285667.6U CN202120285667U CN214226819U CN 214226819 U CN214226819 U CN 214226819U CN 202120285667 U CN202120285667 U CN 202120285667U CN 214226819 U CN214226819 U CN 214226819U
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- China
- Prior art keywords
- fuse
- connector
- link
- insulator
- composite
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- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000012212 insulator Substances 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000011540 sensing material Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Abstract
The utility model provides a composite fuse structure, current fuse-link and temperature fuse including sharp series connection, be connected and realize switching on through a connector between current fuse-link and the temperature fuse, the inner of current fuse-link and temperature fuse inlays respectively to adorn the location in the connector, the connector middle part is equipped with the partition portion, the outer end of current fuse-link and temperature fuse is connected with the end cap, current fuse-link includes to be equipped with the metal melt in an insulator, the both ends of metal melt are connected with end cap and connector electricity respectively, the temperature fuse includes and is equipped with the fuse-element in an insulation tube body, but the both ends of fuse-element are connected with end cap and connector electricity respectively. The utility model discloses can make the whole assembly of being convenient for of fuse, shorten installation time, improve production efficiency.
Description
Technical Field
The utility model relates to a fuse technical field, concretely relates to composite fuse structure that excess temperature protection and overcurrent protection combine.
Background
Traditional temperature fuse is used mostly in cell-phone charger, power adapter, little household electrical appliances, miniwatt electronic product such as electronic toy, can provide overcurrent and temperature protection for the product, in the use, prevent because of the product that product work is unusual or ambient temperature anomaly leads to overheated, the shell warp, catch fire etc, but this kind of product still has the defect, if pack into the temperature sensing body in the insulating casing, need artificially bend, fix a position, spot welding, the equipment, the assembly is inconvenient, and degree of automation is lower, the cost of labor is higher, thereby influence the production efficiency of product. How to provide a more be convenient for assembly, have the compound fuse structure that excess temperature protection and overcurrent protection combine, be the utility model discloses the problem that solves.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a composite fuse structure, it can make the whole assembly of being convenient for of fuse, shortens installation time, improves production efficiency.
In order to achieve the above purpose, the solution of the present invention is:
the utility model provides a composite fuse structure, current fuse-link and temperature fuse including sharp series connection, be connected and realize switching on through a connector between current fuse-link and the temperature fuse, the inner of current fuse-link and temperature fuse inlays respectively to adorn the location in the connector, the connector middle part is equipped with the partition portion, the outer end of current fuse-link and temperature fuse is connected with the end cap, current fuse-link includes to be equipped with the metal melt in an insulator, the both ends of metal melt are connected with end cap and connector electricity respectively, the temperature fuse includes and is equipped with the fuse-element in an insulation tube body, but the both ends of fuse-element are connected with end cap and connector electricity respectively.
Furthermore, the end caps are respectively connected with a lead wire, and the outer part of the composite fuse is insulated and encapsulated by insulating materials.
Furthermore, the insulator of the current fuse-link is an insulating rod, the metal melt is wound on the outer surface of the insulating rod, and two ends of the metal melt are respectively connected to the end cap and the connector.
Furthermore, the insulator of the current fuse-link is an insulating tube, the metal melt is positioned in the insulating tube, and two ends of the metal melt are respectively connected to the end cap and the spacing part of the connector.
Furthermore, in the temperature fuse, the fusible body is made of low-melting-point alloy or high-molecular temperature sensing material.
Furthermore, the connector is a metal conductor, positioning parts are respectively formed on two sides of the connector, the separating part is positioned between the two positioning parts, the inner ends of the insulator and the insulating tube body are sleeved in the connecting piece, and the inner end of at least one of the insulator and the insulating tube body is abutted to the separating part.
Furthermore, in the thermal fuse, the fusible body is formed in a vertical bar shape, a T shape, an I shape or a columnar shape.
Further, the outer peripheral surfaces of the insulator and the insulating tube body are formed into a cylindrical shape, the connecting body includes a cylindrical connecting piece, and a partition plate formed into a circular or annular shape is provided in an inner wall surface of the connecting piece in a protruding manner as a partition portion.
Further, the outer peripheral surface of the insulator of the current fuse-link is formed in a cylindrical shape, and the connecting body includes a neck section formed downward at a cylindrical connecting piece, and a connecting ring between the connecting piece and the neck section forms the partition.
Furthermore, the outer peripheral surfaces of the insulator and the insulating tube body form a square or other polygon, and the connector and the end cap form a corresponding square or other polygon for the insulator and the insulating tube body to be embedded.
After the structure is adopted, the utility model discloses a combined fuse realizes combined fuse's excess temperature protect function including combined current fuse-link and temperature fuse together. The current fuse link and the temperature fuse are connected and conducted through the connecting body, during installation, the inner ends of the current fuse link and the temperature fuse are directly embedded into the connecting body, the structure is simple, the overall assembling time of the fuse is greatly shortened, the investment of manpower, tool fixtures and equipment is reduced, the cost is reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic cross-sectional view of a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a second embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a first embodiment of the middle connection body according to the present invention;
FIG. 4 is a schematic cross-sectional view of a second embodiment of the connecting body of the present invention;
fig. 5 is a schematic cross-sectional view of a third embodiment of the middle connector according to the present invention.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
As shown in fig. 1, the utility model discloses a composite fuse structure, it includes the electric current fuse-link 1 and the temperature fuse 2 of sharp series connection, is connected and realizes switching on through a connector 3 between electric current fuse-link 1 and the temperature fuse 2, and the inner of electric current fuse-link 1 and temperature fuse 2 inlays respectively to adorn the location in connector 3, and connector 3 middle part still is equipped with can carry out the separated partition portion with electric current fuse-link 1 and temperature fuse 2.
As shown in fig. 1, in the embodiment, the current fuse-link 1 includes a metal melt disposed in an insulator, the insulator in this embodiment is an insulating rod 11, the metal melt 12 may be wound on the outer surface of the insulating rod 11 in the form of a fuse wire, an end cap 13 is connected to the outer end of the current fuse-link 1, the end cap 13 is connected to the outer end of the insulating rod 11, and two ends of the metal melt 12 are electrically connected to the end cap 13 and the connecting body 3, respectively. The temperature fuse 2 comprises a fusible body 22 arranged in an insulating tube body 21, an end cap 23 is connected to the outer end of the temperature fuse 2, and two ends of the fusible body 22 are respectively electrically connected with the end cap 23 and the connector 3. A lead 4 is connected to each end cap 23, 13. The exterior of the composite fuse may also be insulation encapsulated by an insulating material such as epoxy or heat shrink tubing (not shown).
As shown in fig. 2, in this embodiment, the insulator of the current fuse-link 1 is an insulating tube 14, the metal melt 12 can be located in the insulating tube 14, a cylinder 15 can be arranged in the insulating tube 14, and the metal melt 12 is wound on the cylinder 15. The two ends of the molten metal 12 are respectively connected to the end caps 13 and the spacing part of the connector 3.
In the thermal fuse 2, the fusible body 22 may be made of low melting point alloy or polymer temperature sensing material. The fusible body 22 may be formed in a vertical bar shape, a T-shape, an I-shape or a column shape, such as the T-shape in the embodiment of fig. 1 and 2.
For the connector 3, the connector 3 is a metal conductor to form electrical conduction, positioning portions capable of being embedded with the inner ends of the current fuse 1 and the temperature fuse 2 are respectively formed on two sides of the connector 3, the separating portion is located between the two positioning portions, and the inner end of at least one of the insulator of the current fuse 1 and the insulating tube 21 of the temperature fuse 2 abuts against the separating portion. As shown in fig. 3, in this embodiment, the insulator (the insulating rod 11 or the insulating tube 14) and the outer peripheral surface of the insulating tube body 21 are formed in a cylindrical shape, the connecting body 3 includes a connecting piece 31 in a cylindrical shape, a partition plate 32 in a circular shape is formed as a partition portion in a protruding manner in an inner wall surface of the connecting piece 31, and the insulator of the current fuse 1 and the inner end of the insulating tube body 21 of the thermal fuse 2 are fitted into the connecting piece 31 and abut against the partition plate 32, respectively.
As shown in fig. 4, the partition may be a partition 33 formed in a circular ring shape and protruding from an inner wall surface of the cylindrical connecting piece 31, and the inner ends of the insulating body 21 of the insulating body of the current fuse 1 and the temperature fuse 2 are fitted into the connecting piece 31 and abut against the partition 33, respectively. In this embodiment, the fusible body 22 of the thermal fuse 2 may be obliquely disposed in the insulating tube 21 or may be T-shaped, so that the inner end of the fusible body 22 is electrically connected to the connecting piece 31, for example, by welding.
In the embodiment shown in fig. 5, the insulator (the insulating rod 11 or the insulating tube 14) and the outer peripheral surface of the insulating tube body 21 are formed in a cylindrical shape, and the connecting body includes a neck section 35 formed downward at a cylindrical connecting piece 34, and a connecting ring 36 between the connecting piece 34 and the neck section 35 forms a partition. In this embodiment, the insulator of the current fuse 1 may be in the form of the insulator 11, and the fusible body 22 in the thermal fuse 2 may be obliquely disposed in the insulating tube 21, or may be in a T-shape, so that the inner end of the fusible body 22 is electrically connected to the connecting piece 31, for example, by welding.
Of course, in contrast to the embodiments shown in fig. 3 to 5, the outer peripheral surfaces of the insulator (the insulating rod 11 or the insulating tube 14) and the insulating tube body 21 may be square or other polygonal, and the connecting pieces and the end caps of the connecting body 3 may be formed into corresponding square or other polygonal shapes for fitting the insulator and the insulating tube body.
The utility model discloses during the use, wherein the electric current fuse-link 1 of one end is as the electric current fuse, in temperature fuse one end, but when the fuse-element 22 surpassed the melting point of fuse-element 22 at the temperature, the low melting point alloy is heated the fusing, or polymer temperature sensing material is heated can trun into liquid and has lost the connection effect from solid-state rapidly, makes the circuit cut off to realize composite fuse's excess temperature protect function.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (10)
1. A composite fuse structure characterized by: the electric current fuse-link and the temperature fuse including sharp series connection, connect and realize switching on through a connector between electric current fuse-link and the temperature fuse, the inner of electric current fuse-link and temperature fuse inlays respectively to adorn the location in the connector, the connector middle part is equipped with the partition portion, the outer end of electric current fuse-link and temperature fuse is connected with the end cap, the electric current fuse-link includes and is equipped with the metal melt in an insulator, the both ends of metal melt are connected with end cap and connector electricity respectively, the temperature fuse includes and is equipped with the fusible body in an insulation tube body, the both ends of fusible body are connected with end cap and connector electricity respectively.
2. A composite fuse structure according to claim 1, wherein: the end caps are respectively connected with a lead wire, and the outside of the composite fuse is insulated and encapsulated by insulating materials.
3. A composite fuse structure according to claim 1, wherein: the insulator of the current fuse-link is an insulating rod, the metal melt is wound on the outer surface of the insulating rod, and two ends of the metal melt are respectively connected to the end cap and the connector.
4. A composite fuse structure according to claim 1, wherein: the insulator of the current fuse-link is an insulating tube, the metal melt is positioned in the insulating tube, and two ends of the metal melt are respectively connected to the end cap and the spacing part of the connector.
5. A composite fuse structure according to claim 1, wherein: in the temperature fuse, the fusible body is made of low-melting-point alloy or high-molecular temperature sensing material.
6. A composite fuse structure according to claim 1, wherein: the connector is a metal conductor, positioning parts are respectively formed on two sides of the connector, the separating part is positioned between the two positioning parts, the inner ends of the insulator and the insulating tube body are sleeved in the connecting piece, and the inner end of at least one of the insulator and the insulating tube body is abutted to the separating part.
7. A composite fuse structure according to claim 1, wherein: in the thermal fuse, the fusible body is formed in a vertical bar shape, a T shape, an I shape or a columnar shape.
8. A composite fuse structure according to any one of claims 1 to 7, wherein: the outer peripheral surfaces of the insulator and the insulating tube body form a cylinder shape, the connecting body comprises a cylindrical connecting sheet, and a circular or annular separating plate is arranged in the inner wall surface of the connecting sheet in a protruding mode to serve as a separating part.
9. A composite fuse structure according to any one of claims 1 to 7, wherein: the outer peripheral surface of the insulator of the current fuse-link is formed in a cylindrical shape, and the connecting body includes a neck section formed downward at a cylindrical connecting piece, and a connecting ring between the connecting piece and the neck section forms a partition.
10. A composite fuse structure according to any one of claims 1 to 7, wherein: the peripheral surfaces of the insulator and the insulating tube body form a square or other polygon, and the connector and the end cap form a corresponding square or other polygon for the insulator and the insulating tube body to be embedded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120285667.6U CN214226819U (en) | 2021-02-01 | 2021-02-01 | Composite fuse structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120285667.6U CN214226819U (en) | 2021-02-01 | 2021-02-01 | Composite fuse structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214226819U true CN214226819U (en) | 2021-09-17 |
Family
ID=77691907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120285667.6U Active CN214226819U (en) | 2021-02-01 | 2021-02-01 | Composite fuse structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214226819U (en) |
-
2021
- 2021-02-01 CN CN202120285667.6U patent/CN214226819U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240314 Address after: 361000, Area A, 5th Floor, No. 8057 Xiang'an West Road, Xiamen Torch High tech Zone (Xiang'an) Industrial Zone, Xiamen City, Fujian Province Patentee after: Xiamen Dexian Electronic Technology Co.,Ltd. Country or region after: China Address before: 361000 room 2701, No. 24, Jinqiao Road, Siming District, Xiamen City, Fujian Province Patentee before: Yu Rong Country or region before: China |
|
| TR01 | Transfer of patent right |