CN104091737A - High-voltage fuse sealing base for underground transformers - Google Patents
High-voltage fuse sealing base for underground transformers Download PDFInfo
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- CN104091737A CN104091737A CN201410243327.1A CN201410243327A CN104091737A CN 104091737 A CN104091737 A CN 104091737A CN 201410243327 A CN201410243327 A CN 201410243327A CN 104091737 A CN104091737 A CN 104091737A
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- insulator foot
- conductor contact
- metallic conductor
- inner chamber
- contact base
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Abstract
A high-voltage fuse sealing base for underground transformers comprises an insulating base. A lower metal conductor contact seat is arranged in the lower end face of the insulating base. An upper metal conductor contact seat is arranged in the upper part of an inner cavity of the insulating base. The upper end of the insulating base is connected with a sealing hoop through external threads. A sealing cover is arranged in the sealing hoop. The sealing cover is arranged on the upper end face of the insulating base. The outer side of the sealing cover and the inner side of the sealing hoop are pressed by a conical surface so as to realize sealing. A core of a high-voltage fuse is placed in the insulating base, and the upper metal conductor contact seat and the lower metal conductor contact seat are respectively in contact with and clamped to the upper and lower ends of the core. Guarantee on safe operation of underground transformers in harsh environments is improved, the IP68 protective requirement required by GB/T10544-2006 is satisfied, installation is convenient, and the sealing performance and the reliability of electrical connection are not damaged.
Description
Technical field:
The present invention relates to electricity field, relate in particular to underground transformer, particularly a kind of high-tension fuse sealed base for underground transformer.
Background technology:
Underground transformer is provided with high-tension fuse.In prior art, high-tension fuse all adopts seal box to seal on base, and fuse core body is identical with the fuse that oil-filled transformer or box type transformer adopt, it installs inconvenience, when fuse breaks down, easily destroy the reliability of sealing and electrical connection, and cost is higher
Summary of the invention:
The object of the present invention is to provide a kind of high-tension fuse sealed base for underground transformer, the described this high-tension fuse sealed base for underground transformer will solve the technical problem that prior art fuse is installed inconvenience, easily destroyed sealing and reliability of electrical connection while breaking down.
This high-tension fuse sealed base for underground transformer of the present invention comprises an insulator foot and a seal cover, wherein, in described insulator foot, be provided with an inner chamber, the upper end of insulator foot is open, the lower end closed of insulator foot, in the lower surface of insulator foot, be provided with a lower metallic conductor contact base, the top of insulator foot inner chamber is provided with a upper metallic conductor contact base, on the upper end excircle of insulator foot, be provided with external screw thread, described seal cover includes a cylindrical drum, the upper surface sealing of described cylindrical drum and be circular cone shape, the middle part of seal cover is provided with a ring-type along its excircle and protrudes step, described ring-type is protruded step and is seated on the upper surface of insulator foot, cylindrical drum below ring-type protrusion step extends to the top of insulator foot inner chamber, the upper end of insulator foot has been threaded connection a seal closure, the upper surface sealing of described seal closure, the top of seal closure is provided with a coniform inner chamber, seal cover is positioned at the inner side of seal closure.
Further, the inner chamber in insulator foot is cylindric, and the upper diameter of inner chamber is greater than the lower diameter of inner chamber, is provided with a step surface between the top of inner chamber and the bottom of inner chamber.
Further, in described lower metallic conductor contact base, include a circular cylindrical cavity, the upper end open of lower metallic conductor contact base, the lower end sealing of lower metallic conductor contact base is also connected with a cylindrical I-shaped saddle, described cylindrical I-shaped saddle extends to below the lower surface of insulator foot, and cylindrical I-shaped saddle is electric conductor.
Further, the medium central angle of circumferential side wall of lower metallic conductor contact base is provided with the crack of more than two number, the bearing of trend in the crack described in any one is all parallel to the axial of lower metallic conductor contact base, is arranged with reinforcement jump ring on the outer wall of lower metallic conductor contact base.
Further, described upper metallic conductor contact base is circular, upper metallic conductor contact base is embedded in the internal chamber wall of insulator foot, the inwall of upper metallic conductor contact base is exposed in the inner chamber of insulator foot, what in the outer wall of insulator foot, be parallel to insulator foot is axially provided with a lug boss, what in described lug boss, be parallel to insulator foot is axially provided with a metal connecting rod, in the periphery of upper metallic conductor contact base, be provided with a projection, described projection is through extending to after the sidewall of insulator foot in lug boss and being connected with the upper end of described metal connecting rod, in the lower surface of metal connecting rod, be provided with an axial internal thread hole.
Further, the surface of upper metallic conductor contact base and lower metallic conductor contact base is all silver coated.
Further, between seal cover and insulator foot, be provided with sealing ring.
Further, ring-type is protruded between step and the upper surface of insulator foot and is provided with sealing ring.
Further, the minimum diameter of described coniform inner chamber is less than the minimum outer diameter of the upper surface of the circular cone shape of seal cover
The course of work of the present invention is: the one end with striker on the core body of high-tension fuse is first connected with fuse connecting seat closely, then insert in the inner chamber of insulator foot, upper metallic conductor contact base in the inner chamber of insulator foot contacts and clamps with the termination up and down of high-tension fuse core body respectively with lower metallic conductor contact base, the upper port of seal cap sealing insulator foot, seal closure utilizes spanner and insulator foot to tighten, the upper end outer conical surface of the inner chamber taper seat press seal lid of seal closure, makes the upper end outer conical surface distortion of seal cover and forms seal closely.
The present invention and prior art are compared, and its effect is actively with obvious.The present invention utilizes the insulator foot of an end opening to place the core body of high-tension fuse, utilize the upper port of seal cap sealing insulator foot, utilize the upper end outer conical surface of the inner chamber taper seat press seal lid of seal closure, make the upper end outer conical surface distortion of seal cover and form seal closely, make insulator foot obtain closely sealing reliably, improve the safe operation guarantee of underground transformer under adverse circumstances, also meet the requirement of shelter of the IP68 of the requirement of GB/T10544-2006, easy for installation, the reliability of sealing and electrical connection can be not destroyed.
Brief description of the drawings:
Fig. 1 is the structural representation of a kind of high-tension fuse sealed base for underground transformer in the present invention.
Embodiment:
Embodiment 1:
As shown in Figure 1, a kind of high-tension fuse sealed base for underground transformer of the present invention, comprise an insulator foot 4 and a seal cover 2, wherein, in described insulator foot 4, be provided with an inner chamber, the upper end of insulator foot 4 is open, the lower end closed of insulator foot 4, in the lower surface of insulator foot 4, be provided with a lower metallic conductor contact base 8, the top of insulator foot 4 inner chambers is provided with a upper metallic conductor contact base 5, on the upper end excircle of insulator foot 4, be provided with external screw thread, described seal cover 2 includes a cylindrical drum, the upper surface sealing of described cylindrical drum and be circular cone shape, the middle part of seal cover 2 is provided with a ring-type along its excircle and protrudes step, described ring-type is protruded step and is seated on the upper surface of insulator foot 4, cylindrical drum below ring-type protrusion step extends to the top of insulator foot 4 inner chambers, the upper end of insulator foot 4 has been threaded connection a seal closure 1, the upper surface sealing of described seal closure 1, the top of seal closure 1 is provided with a coniform inner chamber, seal cover 2 is positioned at the inner side of seal closure 1.
Further, the inner chamber in insulator foot 4 is cylindric, and the upper diameter of inner chamber is greater than the lower diameter of inner chamber, is provided with a step surface between the top of inner chamber and the bottom of inner chamber.
Further, in described lower metallic conductor contact base 8, include a circular cylindrical cavity, the upper end open of lower metallic conductor contact base 8, the lower end sealing of lower metallic conductor contact base 8 is also connected with a cylindrical I-shaped saddle, described cylindrical I-shaped saddle extends to below the lower surface of insulator foot 4, and cylindrical I-shaped saddle is electric conductor.
Further, the medium central angle of circumferential side wall of lower metallic conductor contact base 8 is provided with the crack of more than two number, the bearing of trend in the crack described in any one is all parallel to the axial of lower metallic conductor contact base 8, is arranged with reinforcement jump ring on the outer wall of lower metallic conductor contact base 8.
Further, described upper metallic conductor contact base 5 is circular, upper metallic conductor contact base 5 is embedded in the internal chamber wall of insulator foot 4, the inwall of upper metallic conductor contact base 5 is exposed in the inner chamber of insulator foot 4, what in the outer wall of insulator foot 4, be parallel to insulator foot 4 is axially provided with a lug boss, what in described lug boss, be parallel to insulator foot 4 is axially provided with a metal connecting rod 6, in the periphery of upper metallic conductor contact base 5, be provided with a projection, described projection is through extending to after the sidewall of insulator foot 4 in lug boss and being connected with the upper end of described metal connecting rod 6, in the lower surface of metal connecting rod 6, be provided with an axial internal thread hole.
Further, the surface of upper metallic conductor contact base 5 and lower metallic conductor contact base 8 is all silver coated.
Further, between seal cover 2 and insulator foot 4, be provided with sealing ring.
Further, the minimum diameter of described coniform inner chamber is less than the minimum outer diameter of the upper surface of the circular cone shape of seal cover 2.
Further, ring-type is protruded between step and the upper surface of insulator foot 4 and is provided with sealing ring.
The course of work of the present embodiment is: the one end with striker 9 on the core body 7 of high-tension fuse is first connected with fuse connecting seat 3 closely, then insert in the inner chamber of insulator foot 4, upper metallic conductor contact base 5 in the inner chamber of insulator foot 4 contacts and clamps with the termination up and down of high-tension fuse core body 7 respectively with lower metallic conductor contact base 8, the upper port of seal cover 2 sealed insulation bases 4, seal closure 1 utilizes spanner and insulator foot 4 to tighten, the upper end outer conical surface of the inner chamber taper seat press seal lid 2 of seal closure 1, make the upper end outer conical surface distortion of seal cover 2 and form seal closely.
Claims (9)
1. the high-tension fuse sealed base for underground transformer, comprise an insulator foot and a seal cover, it is characterized in that: in described insulator foot, be provided with an inner chamber, the upper end of insulator foot is open, the lower end closed of insulator foot, in the lower surface of insulator foot, be provided with a lower metallic conductor contact base, the top of insulator foot inner chamber is provided with a upper metallic conductor contact base, on the upper end excircle of insulator foot, be provided with external screw thread, described seal cover includes a cylindrical drum, the upper surface sealing of described cylindrical drum and be circular cone shape, the middle part of seal cover is provided with a ring-type along its excircle and protrudes step, described ring-type is protruded step and is seated on the upper surface of insulator foot, cylindrical drum below ring-type protrusion step extends to the top of insulator foot inner chamber, the upper end of insulator foot has been threaded connection a seal closure, the upper surface sealing of described seal closure, the top of seal closure is provided with a coniform inner chamber, seal cover is positioned at the inner side of seal closure.
2. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 1, it is characterized in that: the inner chamber in insulator foot is cylindric, the upper diameter of inner chamber is greater than the lower diameter of inner chamber, is provided with a step surface between the top of inner chamber and the bottom of inner chamber.
3. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 1, it is characterized in that: in described lower metallic conductor contact base, include a circular cylindrical cavity, the upper end open of lower metallic conductor contact base, the lower end sealing of lower metallic conductor contact base is also connected with a cylindrical I-shaped saddle, described cylindrical I-shaped saddle extends to below the lower surface of insulator foot, and cylindrical I-shaped saddle is electric conductor.
4. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 3, it is characterized in that: the medium central angle of circumferential side wall of lower metallic conductor contact base is provided with the crack of more than two number, the bearing of trend in the crack described in any one is all parallel to the axial of lower metallic conductor contact base, is arranged with reinforcement jump ring on the outer wall of lower metallic conductor contact base.
5. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 1, it is characterized in that: described upper metallic conductor contact base is circular, upper metallic conductor contact base is embedded in the internal chamber wall of insulator foot, the inwall of upper metallic conductor contact base is exposed in the inner chamber of insulator foot, what in the outer wall of insulator foot, be parallel to insulator foot is axially provided with a lug boss, what in described lug boss, be parallel to insulator foot is axially provided with a metal connecting rod, in the periphery of upper metallic conductor contact base, be provided with a projection, described projection is through extending to after the sidewall of insulator foot in lug boss and being connected with the upper end of described metal connecting rod, in the lower surface of metal connecting rod, be provided with an axial internal thread hole.
6. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 1, is characterized in that: the surface of upper metallic conductor contact base and lower metallic conductor contact base is all silver coated.
7. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 1, is characterized in that: between seal cover and insulator foot, be provided with sealing ring.
8. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 1, is characterized in that: ring-type is protruded between step and the upper surface of insulator foot and is provided with sealing ring.
9. a kind of high-tension fuse sealed base for underground transformer as claimed in claim 1, is characterized in that: the minimum diameter of described coniform inner chamber is less than the minimum outer diameter of the upper surface of the circular cone shape of seal cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243327.1A CN104091737A (en) | 2014-06-03 | 2014-06-03 | High-voltage fuse sealing base for underground transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243327.1A CN104091737A (en) | 2014-06-03 | 2014-06-03 | High-voltage fuse sealing base for underground transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104091737A true CN104091737A (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410243327.1A Pending CN104091737A (en) | 2014-06-03 | 2014-06-03 | High-voltage fuse sealing base for underground transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104091737A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065326A (en) * | 2018-08-21 | 2018-12-21 | 李涵 | A kind of transformer maintenance process |
| CN110085404A (en) * | 2018-01-26 | 2019-08-02 | 上海瑞奇电气设备股份有限公司 | Underground transformer is connected with high-tension cable and high-tension fuse protects integrated sealing pedestal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005197182A (en) * | 2004-01-09 | 2005-07-21 | Mitsubishi Electric Corp | Insulating support structure of fuse |
| CN201075367Y (en) * | 2007-08-30 | 2008-06-18 | 谭迪 | High voltage fuse for ground-embedded type voltage transformer |
| CN102376506A (en) * | 2011-06-22 | 2012-03-14 | 麦朗辉 | Full-insulated fuse for buried combined transformer |
| CN203931992U (en) * | 2014-06-03 | 2014-11-05 | 上海瑞奇电气设备股份有限公司 | High-tension fuse sealed base for underground transformer |
-
2014
- 2014-06-03 CN CN201410243327.1A patent/CN104091737A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005197182A (en) * | 2004-01-09 | 2005-07-21 | Mitsubishi Electric Corp | Insulating support structure of fuse |
| CN201075367Y (en) * | 2007-08-30 | 2008-06-18 | 谭迪 | High voltage fuse for ground-embedded type voltage transformer |
| CN102376506A (en) * | 2011-06-22 | 2012-03-14 | 麦朗辉 | Full-insulated fuse for buried combined transformer |
| CN203931992U (en) * | 2014-06-03 | 2014-11-05 | 上海瑞奇电气设备股份有限公司 | High-tension fuse sealed base for underground transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085404A (en) * | 2018-01-26 | 2019-08-02 | 上海瑞奇电气设备股份有限公司 | Underground transformer is connected with high-tension cable and high-tension fuse protects integrated sealing pedestal |
| CN109065326A (en) * | 2018-08-21 | 2018-12-21 | 李涵 | A kind of transformer maintenance process |
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Application publication date: 20141008 |
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| RJ01 | Rejection of invention patent application after publication |