CN218414464U - Novel oblique-pulling internal-welding fuse link - Google Patents
Novel oblique-pulling internal-welding fuse link Download PDFInfo
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- CN218414464U CN218414464U CN202221844010.XU CN202221844010U CN218414464U CN 218414464 U CN218414464 U CN 218414464U CN 202221844010 U CN202221844010 U CN 202221844010U CN 218414464 U CN218414464 U CN 218414464U
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- fuse
- copper cap
- concave station
- welding
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Abstract
The utility model discloses a novel weld fuse-link draws in to one side, include the ceramic tube both ends symmetry is provided with the concave station, is equipped with the slant fuse-element of placing in the ceramic tube, the fuse-element both ends set up the drag hook that is used for clamping at the concave station, the rotatory inner wall of copper cap is provided with the boss one-to-one with the concave station, reserve the soldering tin piece on the concave station, the copper cap cover is in on the ceramic tube, the fuse-element passes through the tin piece and is in the same place with the copper cap welding. In this way, the utility model discloses simple structure, design benefit, the equipment is convenient, can material saving, reduce cost improves the breaking capacity.
Description
Technical Field
The utility model relates to a circuit overcurrent protection technical field especially relates to a novel weld fuse-link in drawing to one side.
Background
At present, the fuse-link mostly adopts an external welding mode, as shown in fig. 1, the external welding double-cap fuse-link is assembled by riveting two inner copper caps 12 on a pipe body 11 in an interference manner, penetrating a variable cross-section melt 13 through the pipe body 11, flattening and attaching parts of two ends of the variable cross-section melt 13, which extend out of the inner copper caps 12, to the outer end face of the inner copper caps 12, and welding the variable cross-section melt 13 together in a spot manner, and then riveting the outer copper caps 14 on the inner copper caps 12 in an interference manner.
There are also some fuses of internal welding in the market, as shown in fig. 2, a single-cap fuse is welded in the central point, two copper caps 22 are pre-buried with tin during assembly, a variable cross-section melt 23 penetrates through the pipe body 21, every two copper caps 22 are sleeved at two ends of the pipe body, the variable cross-section melt 23 is in contact with the pre-buried tin, external heating is performed at the moment, and the pre-buried tin is melted and welded with the variable cross-section melt 23.
The outer double-cap fuse-link that welds adopts the part many, there are inside and outside two-layer copper cap, the cost is relatively higher, the pre-buried tin of the single-cap fuse-link that welds in the central point, adopt perpendicular welding more, so be unlikely to crooked when welding for making the fuse-element, can set up couple 20 in fuse-element one end when the fuse-element design, lead to the fuse-element width widen, this method consumes considerably to the fuse-element, and is with high costs, in addition above-mentioned two kinds of fuse-links are difficult to assemble fire-retardant arc extinguishing material, the electric arc that produces when the inside branch of end cap and porcelain tube divides easily, divide the ability poor, based on above defect and not enough, it is necessary to improve current technique, design a novel oblique pull internal welding fuse-link.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a novel weld fuse-link in drawing to one side, simple structure, design benefit, and the equipment is convenient, can material saving, and reduce cost improves breaking capacity.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a novel weld fuse-link in drawing to one side, this kind of novel weld fuse-link in drawing to one side includes the ceramic cylinder both ends symmetry is provided with the concave station, is equipped with the slant fuse-link of placing in the ceramic cylinder, the fuse-link both ends set up and are used for clamping the drag hook at the concave station, copper cap rotatory inner wall is provided with the boss one-to-one with the concave station, reserve the soldering tin piece on the concave station, the copper cap cover is in on the ceramic cylinder, the fuse-link passes through the tin piece and is in the same place with the copper cap welding.
Preferably, the novel oblique-pulling internal-welding fuse-link further comprises a flame-retardant arc-extinguishing piece, the flame-retardant arc-extinguishing piece is arranged in the copper cap close to the bottom surface, and the flame-retardant arc-extinguishing piece is isolated between the copper cap and the section of melt in the ceramic tube body.
Preferably, the tin sheet is fixed on the concave platform by a small amount of silica gel, and the welding position is located at a boss on the inner side surface of the copper cap.
Preferably, the melt is a variable cross-section melt.
Compared with the prior art, the beneficial effects of the utility model are that:
compared with an externally welded double-cap fuse link, a pair of copper caps is saved;
compared with a single-cap fuse link welded in the central point, the melt material is saved, and the utilization rate of the strip-shaped melt material is higher;
flame-retardant arc-extinguishing materials can be placed in the fuse-link, namely the copper cap, to isolate the copper cap and to weld the electric arc generated when the tin and the porcelain tube are broken, so that breaking capacity is provided.
Drawings
Fig. 1 is a schematic view of an expansion structure of an outer welding double-cap fuse-link.
Fig. 2 is a schematic view of the expanded structure of a single-cap fuse-link welded in the center point.
Fig. 3 is a schematic view of an expanded structure of a novel diagonal internal welding fuse-link.
Fig. 4 is an assembled cross-sectional view of a novel diagonal draw inner weld fuse link.
Wherein, referring to fig. 1, 11-tube body, 12-inner copper cap, 13-variable cross section melt and 14-outer copper cap;
for fig. 2, 21-tube, 22-copper cap and 23-variable cross-section melt;
referring to fig. 3 and 4, 1-porcelain tube, 11-concave table, 2-copper cap, 21-convex table, 3-melt, 31-drag hook and 4-flame-retardant arc extinguishing piece.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.
Referring to fig. 1 to 4, an embodiment of the present invention includes:
the utility model provides a novel weld fuse-link in drawing to one side, this kind of novel weld fuse-link in drawing to one side includes ceramic tube 1, copper cap 2, fuse-element 3 and fire-retardant arc extinguishing piece 4,1 both ends symmetry of ceramic tube is provided with concave station 11, is equipped with the fuse-element 3 that the slant was placed in the ceramic tube 1, 3 both ends of fuse-element set up the drag hook 31 that is used for clamping at concave station 11, 2 rotatory inner walls of copper cap are provided with the boss 21 with concave station 11 one-to-one, reserve the soldering tin piece on concave station 11, on the tin piece can adopt a small amount of silica gel to be fixed in concave station 11, the welding position is located the boss department of copper cap medial surface, be close to bottom surface department and be equipped with fire-retardant arc extinguishing piece 4 in copper cap 2, fire-retardant arc extinguishing piece 4 has been done the isolation between this section fuse-element 3 in copper cap 2 and ceramic tube 1, keeps apart the electric arc that produces when copper cap 2 and 1 is inside to provide the branch's ability, copper cap 2 covers on ceramic tube 1, fuse-element 3 passes through the tin piece and copper cap 2 welds together, fuse-element 3 adopts and becomes the cross-section.
The utility model relates to a novel when welding fuse-link assembles in drawing to one side, at first clamp the formula of drawing to one side with variable cross section fuse-link 3 on the ceramic tube 1, drag hook 31 card is in the concave station 11 department at 1 both ends of ceramic tube, arranges 2 bottoms of copper cap in with fire-retardant arc extinguishing piece 4, and on the tin piece can adopt a small amount of silica gel to be fixed in concave station 11, with 2 suit of copper cap on ceramic tube 1, guarantee boss 21 and concave station 11 one-to-one, at 2 boss 21 external heating of copper cap, the tin piece of reservation melts and then switches on fuse-link 3 with 2 welding of copper cap.
The utility model relates to a novel weld fuse-link in drawing to one side, simple structure, design benefit, the equipment is convenient, can material saving, and reduce cost improves the breaking capacity.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. The utility model provides a novel weld fuse-link in drawing to one side, includes ceramic tube, copper cap and fuse-element, its characterized in that: the ceramic tube both ends symmetry is provided with the concave station, is equipped with the slant fuse-element of placing in the ceramic tube, the fuse-element both ends set up the drag hook that is used for clamping at the concave station, copper cap rotatory inner wall is provided with the boss with the concave station one-to-one, reserve the soldering on the concave station and use the tin piece, the copper cap cover is in on the ceramic tube, the fuse-element passes through the tin piece and is in the same place with the copper cap welding.
2. The novel oblique-pulling inner-welding fuse link as claimed in claim 1, characterized in that: the copper cap is characterized by further comprising a flame-retardant arc-extinguishing sheet, wherein the flame-retardant arc-extinguishing sheet is arranged in the copper cap and close to the bottom surface.
3. The novel oblique-pulling inner-welding fuse link as claimed in claim 1, characterized in that: the tin sheet is fixed on the concave table by a small amount of silica gel, and the welding position is positioned at the boss on the inner side surface of the copper cap.
4. The novel oblique-pulling internal-welding fuse link of claim 1, characterized in that: the melt adopts a variable cross section melt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221844010.XU CN218414464U (en) | 2022-07-18 | 2022-07-18 | Novel oblique-pulling internal-welding fuse link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221844010.XU CN218414464U (en) | 2022-07-18 | 2022-07-18 | Novel oblique-pulling internal-welding fuse link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218414464U true CN218414464U (en) | 2023-01-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221844010.XU Active CN218414464U (en) | 2022-07-18 | 2022-07-18 | Novel oblique-pulling internal-welding fuse link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218414464U (en) |
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2022
- 2022-07-18 CN CN202221844010.XU patent/CN218414464U/en active Active
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