CN213304050U - Oil-immersed high-voltage fuse for full-range protection - Google Patents
Oil-immersed high-voltage fuse for full-range protection Download PDFInfo
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- CN213304050U CN213304050U CN202022230487.6U CN202022230487U CN213304050U CN 213304050 U CN213304050 U CN 213304050U CN 202022230487 U CN202022230487 U CN 202022230487U CN 213304050 U CN213304050 U CN 213304050U
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- voltage fuse
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Abstract
The utility model discloses an oil-immersed high-voltage fuse for all-range protection belongs to high-voltage fuse technical field, can effectively solve the problem that current high-voltage fuse that adopts the contact knife to conduct appears the sealing washer ageing easily, the oil leak of outer tube, including glass fiber epoxy tube, handle and high-voltage fuse fusible core, handle bottom fixedly connected with high-voltage fuse fusible core, the equal fixed electrically conductive spring that is provided with in high-voltage fuse fusible core both ends, the well upper portion of glass fiber epoxy tube sets up electrically conductive bolt, and electrically conductive bolt's head contacts with electrically conductive spring, and its beneficial effect lies in: through the electrically conductive mode that adopts conducting ring and electrically conductive spring to combine closely, can effectively increase area of contact, produced electrically conductive contact resistance when reducing the circular telegram is difficult for producing the magnetic field and the phenomenon of generating heat, has effectively avoided causing the ablation of outer tube because of generating heat, and the sealing rubber spare leads to the outer tube oil leak to influence the problem of fuse normal use because of deformation, ageing that high temperature arouses.
Description
Technical Field
The utility model provides an oily formula high-voltage fuse for full range protection, is applicable to in the oil tank of American box transformer, as transformer overload and short-circuit protection's device, belongs to high-voltage fuse technical field, concretely relates to oily formula full range protection high-voltage fuse.
Background
At present, the high-voltage fuse for oil-immersed full-range protection used in China adopts a structure that a contact knife is conductive, and the specific operation is as follows: the fuse core is spirally connected onto the guide rod, then the melting cylinder is pushed (pushed in place), the fuse is contacted with a conductive contact knife embedded in the epoxy tube through a conductive spring, and the contact knife is electrically connected with the outside through a conductive screw. The structure adopting the contact knife for conducting electricity has the following defects: firstly, the contact area of the contact knife is small, when the current is too large, the contact knife generates heat, the sealing ring is easy to age along with the time, and the leakage phenomenon exists in the using process; and secondly, the contact of the conductive area is small, the contact resistance is large, a magnetic field and heating phenomena are easily generated, and further the normal use is influenced by the oil leakage of the outer pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, to current adoption contact sword electrically conductive high-voltage fuse appear the sealing washer ageing easily, the problem of outer tube oil leak, a high-voltage fuse is used in oil-immersed full scope protection is provided, through the electrically conductive mode that adopts metal conducting ring and conductive spring to combine closely, simple installation, the electric conductivity is high, area of contact is big, the electrically conductive contact resistance that produces during the circular telegram is little, be difficult for producing magnetic field and the phenomenon of generating heat, effectively avoided causing the ablation of glass fiber epoxy pipe because of generating heat, and the deformation that the sealing rubber spare arouses because of high temperature, ageing and lead to glass fiber epoxy pipe oil leak to influence the problem of fuse normal use.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides an oil-immersed high-voltage fuse for all-range protection, includes glass fiber epoxy pipe 1, handle 2 and high-voltage fuse fusible core 8, 2 bottom fixedly connected with high-voltage fuse fusible cores 8 of handle, high-voltage fuse fusible core 8 both ends are all fixed and are provided with conductive spring 4, the well upper portion of glass fiber epoxy pipe 1 is provided with the screw hole, and threaded connection has conductive bolt 6 on the screw hole, and conductive bolt 6's head contacts with conductive spring 4.
And a conducting ring 3 is fixedly arranged on the inner side wall of the glass fiber epoxy pipe 1, and the conducting ring 3 corresponds to the positions of the threaded hole and the conducting bolt 6.
And the conductive bolt 6 is provided with a sealing rubber ring 5 and a nut.
And an external wiring terminal 7 is fixedly arranged between the conductive bolt 6 and the nut.
The top end of the glass fiber epoxy tube 1 is fixedly connected with a handle cover 10, and the bottom end of the glass fiber epoxy tube 1 is provided with a terminal conducting device 9.
The fixed electrically conductive cap that is provided with in top of high-pressure fuse fusible core 8, the bottom mounting of high-pressure fuse fusible core 8 is provided with down electrically conductive cap, go up electrically conductive cap and electrically conductive cap down and all be used for electrically conductive spring 4's rigidity, just it contacts with conducting ring 3 through electrically conductive spring 4 to go up electrically conductive cap, electrically conductive cap contacts with terminal electrically conductive device 9 through electrically conductive spring 4 down.
Compared with the prior art, the utility model discloses following beneficial effect has:
through the electrically conductive mode that adopts metal conducting ring and electrically conductive spring to combine closely, simple installation, the electric conductivity is high, can effectively increase area of contact, reduces produced electrically conductive contact resistance when circular telegram, is difficult for producing magnetic field and the phenomenon of generating heat, has effectively avoided causing glass fiber epoxy pipe to ablate because of generating heat and has leaded to glass fiber epoxy pipe oil leak to influence the problem of fuse normal use because of deformation, ageing that high temperature arouses with the sealing rubber spare.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a side view and a cross-sectional view of the conductive finger ring according to the embodiment of the present invention.
Fig. 3 is a front sectional view of the conductive finger ring according to the embodiment of the present invention.
Figure number and name: the high-voltage fuse comprises a glass fiber epoxy tube 1, a handle 2, a conducting ring 3, a conducting spring 4, a sealing rubber ring 5, a conducting bolt 6, an external connection terminal 7, a high-voltage fuse fusible core 8, a tail end conducting device 9 and a handle cover 10.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-3, an oil-immersed high-voltage fuse for all scope protection, including glass fiber epoxy pipe 1, handle 2 and high-voltage fuse fusible core 8, the bottom threaded connection of handle 2 has high-voltage fuse fusible core 8, set up inside glass fiber epoxy pipe 1 after handle 2 and the 8 threaded connection of high-voltage fuse fusible core.
The fixed electrically conductive cap that is provided with in top of high-voltage fuse fusible core 8, the bottom mounting of high-voltage fuse fusible core 8 is provided with down electrically conductive cap, the upper and lower both ends of high-voltage fuse fusible core 8 are respectively through last electrically conductive cap and electrically conductive cap block fixedly connected with conductive spring 4 down, because go up electrically conductive cap and electrically conductive cap down and all adopt current electrically conductive cap, and then this place no longer gives redundant details to the concrete structure and the mounting structure of electrically conductive cap, go up electrically conductive cap and electrically conductive cap down and all be used for conductive spring 4's rigidity, just it contacts with conducting ring 3 through conductive spring 4 to go up electrically conductive cap, electrically conductive cap contacts with terminal conductive device 9 through conductive spring 4 down.
The middle upper part of the glass fiber epoxy pipe 1 is provided with a threaded hole, a conductive bolt 6 is connected to the threaded hole in a threaded mode, and the head of the conductive bolt 6 is in contact with a conductive spring 4 through an upper conductive cap and a conductive ring 3.
The fixed conducting ring 3 that is provided with on glass fiber epoxy pipe 1's the inside wall, conducting ring 3 is corresponding with screw hole and conductive bolt 6's position, conducting ring 3 adopts the electrically conductive ring of metal, through the inseparable combination of electrically conductive ring realization and conductive spring 4, can effectively increase area of contact, produced electrically conductive contact resistance when reducing the circular telegram, be difficult for producing magnetic field and the phenomenon of generating heat, effectively avoided because of generating heat causing the ablation of glass fiber epoxy pipe 1, and the deformation that the sealing rubber spare arouses because of high temperature, ageing and lead to glass fiber epoxy pipe 1 to leak oily problem that influences the fuse and normally use.
The cover is equipped with sealing rubber circle 5 on the conductive bolt 6, and conductive bolt 6's afterbody threaded connection has the nut, fixedly between conductive bolt 6 and the nut being provided with external terminal 7 of acting as go-between, handle lid bolt fixedly connected with handle lid 10 is passed through on the top of glass fiber epoxy pipe 1, and the bottom of glass fiber epoxy pipe 1 is provided with terminal electrically conductive device 9, external terminal 7 and terminal wire device 9 are in the same place with outside transformer electrical connection.
The utility model discloses before using, need earlier fix a position 3 windings of conducting ring in the glass fiber epoxy pipe 1 with the solidification, seal rubber circle 5 is sheathe in for conductive bolt 6, install with specialized tool, then outside compresses tightly external connection terminal 7 with the nut, install conductive spring 4 with the both ends that are used for transshipping and short-circuit protection's high-voltage fuse fusible core 8 afterwards, then with 8 top screwed connection of high-voltage fuse fusible core on handle 2, and push into glass fiber epoxy pipe 1 with high-voltage fuse fusible core 8 and handle 2 that fixed connection is in the same place, then cover handle lid 10 and screw up handle cover bolt. When the high-voltage fuse fusible core 8 needs to be replaced, the handle cover 10 is opened, and the handle 2 and the high-voltage fuse fusible core 8 are pulled out.
The above is to the technical scheme that the embodiment of the utility model provides introduces in detail, and it is right to have used specific individual example herein the utility model discloses the principle and the implementation of embodiment have been explained, and the description of above embodiment only is applicable to help understanding the utility model discloses the principle of embodiment.
Claims (6)
1. The utility model provides an oily formula high-voltage fuse for full range protection, includes glass fiber epoxy pipe (1), handle (2) and high-voltage fuse fusible core (8), its characterized in that: the bottom fixedly connected with high-voltage fuse fusible core (8) of handle (2), high-voltage fuse fusible core (8) both ends are all fixed and are provided with conductive spring (4), the well upper portion of glass fiber epoxy pipe (1) is provided with the screw hole, and threaded connection has conductive bolt (6) on the screw hole, and the head and the conductive spring (4) of conductive bolt (6) contact.
2. The oil-immersed high-voltage fuse for full-range protection according to claim 1, characterized in that: and a conducting ring (3) is fixedly arranged on the inner side wall of the glass fiber epoxy pipe (1), and the conducting ring (3) corresponds to the threaded hole and the conducting bolt (6).
3. The oil-immersed high-voltage fuse for full-range protection according to claim 2, characterized in that: and the conductive bolt (6) is provided with a sealing rubber ring (5) and a nut.
4. The oil-immersed high-voltage fuse for full-range protection according to claim 3, characterized in that: an external wiring terminal (7) is fixedly arranged between the conductive bolt (6) and the nut.
5. The oil-immersed high-voltage fuse for full-range protection according to claim 1, characterized in that: the top end of the glass fiber epoxy tube (1) is fixedly connected with a handle cover (10), and the bottom end of the glass fiber epoxy tube (1) is provided with a terminal conducting device (9).
6. The oil-immersed high-voltage fuse for full-range protection according to claim 5, characterized in that: the fixed electrically conductive cap that is provided with in top of high-pressure fuse fusible core (8), the bottom mounting of high-pressure fuse fusible core (8) is provided with down electrically conductive cap, go up electrically conductive cap and electrically conductive cap down and all be used for the rigidity of electrically conductive spring (4), just it contacts with conducting ring (3) through electrically conductive spring (4) to go up electrically conductive cap, electrically conductive cap contacts through electrically conductive spring (4) and terminal electrically conductive device (9) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022230487.6U CN213304050U (en) | 2020-09-30 | 2020-09-30 | Oil-immersed high-voltage fuse for full-range protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022230487.6U CN213304050U (en) | 2020-09-30 | 2020-09-30 | Oil-immersed high-voltage fuse for full-range protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213304050U true CN213304050U (en) | 2021-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022230487.6U Active CN213304050U (en) | 2020-09-30 | 2020-09-30 | Oil-immersed high-voltage fuse for full-range protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213304050U (en) |
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2020
- 2020-09-30 CN CN202022230487.6U patent/CN213304050U/en active Active
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