CN220963220U - Novel fuse tube structure - Google Patents
Novel fuse tube structure Download PDFInfo
- Publication number
- CN220963220U CN220963220U CN202322583432.7U CN202322583432U CN220963220U CN 220963220 U CN220963220 U CN 220963220U CN 202322583432 U CN202322583432 U CN 202322583432U CN 220963220 U CN220963220 U CN 220963220U
- Authority
- CN
- China
- Prior art keywords
- wall
- convex
- end cap
- fusible
- melt
- 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.)
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Links
- 238000005476 soldering Methods 0.000 claims abstract description 37
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 230000004907 flux Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
The utility model provides a novel fuse tube body structure, the fuse includes and puts up one in a hollow body and can melt, but the both ends cover of body is equipped with the end cap, but the both ends of melt are fixed in on the end cap through the soldering tin on the inner wall of end cap bottom, the opening part inner wall of body both ends epirelief is equipped with at least one lug or in the whole inner wall face of body opening part epirelief establish a bulge loop, but the tip of melt is put up in bulge loop inside or put up in the other location of lug, the soldering tin on the inner wall of end cap bottom is located the other or inboard of bulge loop of lug after melting. The utility model can ensure that the fusible body is well contacted with the soldering tin, avoid the occurrence of false soldering and false soldering, reduce the consumption of the soldering tin and realize the reduction of the material cost.
Description
Technical Field
The utility model relates to a fuse, in particular to a novel fuse tube structure.
Background
In the current production of small-sized fuses, as shown in fig. 1, the fuse structure generally comprises a fusible body 2' arranged in an insulated tube body 1', a middle through hole of the tube body 1', copper caps 3' sleeved at two ends of the tube body 1', soldering tin 4' added in the copper caps, and then the copper caps 3 are heated to melt the soldering tin 4', the tube body 1' placed with the fusible body is inserted into the copper caps 3', the soldering tin 4' is filled in the inner wall of the copper caps 3' and the outer wall of the end part of the tube body 1' and the port holes of the tube body 1', and then the soldering tin 4' is melted by heating the copper caps 3' so as to be wrapped at the end parts of the fusible body 2' and then fixed on the copper caps 3 '.
The fusible body 2 'is vertically arranged in the pipe body as shown in fig. 1, and the fusible body 2' is diagonally arranged in the pipe body as shown in fig. 2. Since the pipe body is generally a smooth round hole pipe or a square hole pipe, it is hollow and has two open ends, such as a cylindrical porcelain pipe. For the fusible body which is vertically arranged, the swinging space of the fusible body in the pipe body is larger, the requirements of the welding process on the size of the porcelain pipe, the fusible body size and the matching length are very high, the fusible body is easily bent and attached in the production process, the fusible body end part cannot be effectively wrapped by soldering tin, and the fusible body false welding and false welding are easily caused. When the flux is welded diagonally, the flux is more, so that the flux is reliably welded on the outer wall of the porcelain tube and the hole, the copper cap and the tube body are firmly welded, the flux is easily formed by cold welding in actual production for reducing the cost, and the copper cap is easily welded and falls off, so that the product quality is influenced.
Disclosure of utility model
The utility model aims to provide a novel fuse tube structure which can ensure that a fusible body is well contacted with soldering tin, avoid the occurrence of cold joint and false joint, reduce the consumption of the soldering tin and realize the reduction of material cost.
In order to achieve the above object, the solution of the present utility model is:
A fuse is composed of a hollow tube body with two end caps, a molten tin fixed to said end caps via the inner walls of said end caps, and at least one convex block on the inner wall of said opening at two ends of said tube body.
Further, the oblique diagonal frame of the melt is arranged in the pipe body, at least two convex blocks which are arranged at intervals are arranged on the inner wall of the opening at the end part of the pipe body, and the end part of the melt is arranged at a position without the convex blocks in the inner wall of the end part of the pipe body.
A fuse is composed of a hollow tube body, a fused end cap sleeved at both ends of said tube body, a convex ring with a convex end in its inner surface, and a molten tin on the inner surface of bottom of said end cap.
Further, the fusible body is vertically arranged in the middle of the pipe body, and two ends of the fusible body are respectively positioned at the center positions in the convex rings.
Further, the cross section of the convex block or the convex ring is semicircular or square.
Further, the projections or the collars form projections which gradually thicken from the inside of the tube body toward the opening prescription, and the inclined surfaces or the arc-shaped curved surfaces of the projections or the collars face the outer side surfaces in the tube body.
Further, both ends of the fusible body are welded to the end caps at both ends of the insulating tube, and the fusible body is fixed to the end caps by heating the end caps to melt the solder so as to cover the fusible body ends and then fixing the fusible body to the end caps or by butt welding.
Further, the middle part of the pipe body is communicated, two ends of the pipe body are open, the pipe body is an insulating pipe body, and the pipe body is made of glass, ceramic or plastic.
Further, the meltable member is a single wire, a single sheet of metal, or a wound-type meltable member around which the wire is wound.
After the structure is adopted, the convex blocks or the convex rings are convexly arranged in the inner walls of the pipe orifices at the two ends of the pipe body, the end parts of the fusible bodies can be arranged in the convex rings or beside the convex blocks for positioning, and the soldering tin can be extruded to the end parts of the fusible bodies, so that the end parts of the fusible bodies can be fully contacted with the soldering tin, the occurrence of the condition of cold welding or false welding is avoided, the connection of the end caps is firmer, the yield of the fuse is improved, the use amount of the soldering tin can be reduced, and the material cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a conventional fuse;
FIG. 2 is a schematic diagram of another conventional fuse;
Fig. 3 is a schematic perspective view (exploded state) of a first embodiment of the present utility model;
FIGS. 4 and 5 are cross-sectional views of a first embodiment of the present utility model;
Fig. 6 is a schematic perspective view (exploded state) of a second embodiment of the present utility model;
Fig. 7 is a cross-sectional view of a second embodiment of the present utility model.
Detailed Description
In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.
As shown in fig. 3 and 4, the utility model discloses a novel fuse tube structure, the fuse comprises a fusible body 2 which is arranged in a hollow tube body 1, end caps 3 are sleeved at two ends of the tube body 1, the end caps 3 are generally copper caps, and two ends of the fusible body 2 are fixed on the end caps 3 through soldering tin 4 on the inner wall of the bottom of the end caps 3. Specifically, the middle part of the pipe body 1 is communicated, two ends of the pipe body are open, the pipe body 1 is an insulating pipe body, and the pipe body can be made of glass, ceramic or plastic. The fusible body 2 may be a single wire or a single sheet of metal, or a wound fusible body in which a wire is wound may be used. The two ends of the fusible body 2 are welded on the end caps 3 at the two ends of the insulating tube, and the fusible body 2 can be fixed on the end caps 3 after being coated on the end parts of the fusible body 2 by heating the end caps 3 to melt soldering tin (the soldering tin 4 is firstly dotted in the end caps), or the fusible body 2 is fixed on the end caps 3 by butt welding.
The improvement of the utility model is that in the embodiment shown in fig. 3 to 5, in this embodiment, the diagonal frame of the fusible body 2 is placed in the tube body 1, in order to ensure that the soldering tin 4 on the end cap 3 is fully contacted with the fusible body 2, at least one protruding block 12 is convexly arranged on the inner wall 11 at the opening of the two ends of the tube body 1, in this embodiment, two protruding blocks 12 are arranged, and the two protruding blocks 12 can be oppositely arranged, or of course, only one protruding block or a plurality of protruding blocks can be arranged at intervals. When the end of the fusible body 2 is placed in the pipe body, the end 21 of the fusible body is placed beside the protruding block 12, and the end 21 of the fusible body 2 is placed in a place without protruding blocks in the inner wall of the end of the pipe body, or the end 21 of the fusible body 2 can be placed between the two protruding blocks 12. The bump 12 can limit the inner limit of the fusible body 2 at one side when being placed, and the fusible body 2 can be better wrapped due to the fact that the soldering tin 4 on the inner wall of the bottom of the end cap 3 is extruded beside the bump 12 after being melted, the end 21 of the fusible body 2 can be fully contacted with the soldering tin, and the end cap can be better prevented from falling off. Of course, for a fuse in which the fusible body 2 is vertically supported in the tube body 1, the tube body 1 in this embodiment may be used so that the thickness of the bump 12 is smaller than half of the inner diameter of the tube body.
Referring to fig. 6 and 7, in another embodiment of the present utility model, a square tube body 5 is provided, end caps 7 corresponding to the square tube body are sleeved at two ends of the tube body 5, in this embodiment, the fusible body 6 is vertically supported in the middle of the tube body 5, in this embodiment, a convex ring 51 is convexly provided in the whole inner wall surface of the opening of two end portions of the tube body 5, the end portions 61 of the fusible body 6 are supported in the convex ring 51, two ends of the fusible body 6 can be respectively located at the center position in the convex ring, after the soldering tin 4 on the inner wall of the bottom of the end cap 7 is melted, the soldering tin 4 can be extruded towards the middle of the tube orifice, the end portions of the fusible body 6 can be better wrapped, the fusible body end portions are fully contacted with the soldering tin, meanwhile, the fusible body 6 has less swinging space, the fusible body 6 can be centrally fixed, the criterion degree of the fusible body 6 is ensured, and under the condition that the soldering tin amount is not increased, the occurrence of false soldering or false soldering can be greatly avoided, and the yield of the fuse is improved.
For the convex shape formed by the convex blocks or the convex rings, the cross section of the convex blocks or the convex rings can be semicircular or square. As shown in fig. 7, the collar 51 is formed in a semicircular shape with a convex center portion, so that the solder 4 can be more preferably pressed toward the center portion. The convex block or convex ring can also form a convex table which gradually thickens from the inner part of the tube body to the prescription of the opening, namely, the convex ring or convex block faces the outer side surface in the tube body to form an inclined surface or an arc-shaped curved surface. As shown in fig. 3 and 4, the bump 12 forms a chamfer on the inner wall of the opening of the tube body, so that the solder flows to the fusible end of one side and the connection between the end cap and the tube body, and the end cap is prevented from falling off.
After the structure is adopted, the convex blocks or the convex rings are convexly arranged in the inner walls of the pipe orifices at the two ends of the pipe body, the end parts of the fusible bodies can be arranged in the convex rings or arranged beside the convex blocks to be positioned, so that the swinging space of the fusible bodies is reduced, the soldering tin on the inner wall of the bottom of the end cap is positioned beside the convex blocks or at the inner sides of the convex rings after being melted, the soldering tin can be extruded towards the end parts of the fusible bodies, the end parts of the fusible bodies can be fully contacted with the soldering tin, the occurrence of the condition of cold welding or false welding is avoided, the end cap connection is firmer, the yield of the fuse is improved, the soldering tin consumption can be reduced, and the material cost is reduced.
The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.
Claims (9)
1. Novel fuse tube body structure, fuse include one in a hollow body put up one can melt, the both ends cover of body is equipped with the end cap, can melt both ends be fixed in on the end cap through the soldering tin on the inner wall of end cap bottom, its characterized in that: at least one lug is arranged on the inner wall of the opening at the two ends of the tube body in a protruding way, the end part of the fusible body is arranged beside the lug for positioning, and the soldering tin on the inner wall at the bottom of the end cap is positioned beside the lug after being fused.
2. A novel fuse tube structure in accordance with claim 1 wherein: the melt inclined diagonal frame is arranged in the pipe body, at least two convex blocks which are arranged at intervals are arranged on the inner wall of the opening at the end part of the pipe body, and the melt end part is arranged at a position without the convex blocks in the inner wall of the end part of the pipe body.
3. Novel fuse tube body structure, fuse include one in a hollow body put up one can melt, the both ends cover of body is equipped with the end cap, can melt both ends be fixed in on the end cap through the soldering tin on the inner wall of end cap bottom, its characterized in that: a convex ring is convexly arranged in the whole inner wall surface of the opening at the two ends of the tube body, the end part of the fusable body is arranged inside the convex ring, and the soldering tin on the inner wall of the bottom of the end cap is positioned at the inner side of the convex ring after being melted.
4. A novel fuse tube structure in accordance with claim 3 wherein: the fusible body is vertically arranged in the middle of the pipe body, and the two ends of the fusible body are respectively positioned at the center positions in the convex rings.
5. A novel cartridge fuse tube structure as claimed in claim 1 or 3, wherein: the cross section of the convex block or the convex ring is semicircular or square.
6. A novel cartridge fuse tube structure as claimed in claim 1 or 3, wherein: the convex blocks or convex rings form a convex table which gradually thickens from the inside of the tube body to the opening prescription direction, and the convex rings or convex blocks face the outer side surface in the tube body to form an inclined surface or an arc-shaped curved surface.
7. A novel cartridge fuse tube structure as claimed in claim 1 or 3, wherein: the two ends of the fusible body are welded on the end caps at the two ends of the insulating tube, and the fusible body is fixed on the end caps in a mode of cladding the end portions of the fusible body on the end caps by heating the end caps to melt the soldering tin or in a butt-welding mode.
8. A novel cartridge fuse tube structure as claimed in claim 1 or 3, wherein: the middle part of the tube body is communicated, two ends of the tube body are open, the tube body is an insulating tube body, and the tube body is made of glass, ceramic or plastic.
9. A novel cartridge fuse tube structure as claimed in claim 1 or 3, wherein: the meltable material is a single wire, a single sheet of metal, or a wound-type meltable material with a wound wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322583432.7U CN220963220U (en) | 2023-09-22 | 2023-09-22 | Novel fuse tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322583432.7U CN220963220U (en) | 2023-09-22 | 2023-09-22 | Novel fuse tube structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220963220U true CN220963220U (en) | 2024-05-14 |
Family
ID=91025819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322583432.7U Active CN220963220U (en) | 2023-09-22 | 2023-09-22 | Novel fuse tube structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220963220U (en) |
-
2023
- 2023-09-22 CN CN202322583432.7U patent/CN220963220U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |