CN204349232U - A kind of switch cubicle fuse unit and use the solid insulation switch cabinet of this fuse unit - Google Patents
A kind of switch cubicle fuse unit and use the solid insulation switch cabinet of this fuse unit Download PDFInfo
- Publication number
- CN204349232U CN204349232U CN201420642881.2U CN201420642881U CN204349232U CN 204349232 U CN204349232 U CN 204349232U CN 201420642881 U CN201420642881 U CN 201420642881U CN 204349232 U CN204349232 U CN 204349232U
- Authority
- CN
- China
- Prior art keywords
- fuse
- cannelure
- cylindrical shell
- annular wall
- cover
- 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.)
- Withdrawn - After Issue
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 239000007787 solid Substances 0.000 title claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 31
- 229910052802 copper Inorganic materials 0.000 claims description 31
- 239000010949 copper Substances 0.000 claims description 31
- 230000005611 electricity Effects 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 11
- 239000006185 dispersion Substances 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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- Fuses (AREA)
Abstract
The utility model relates to a kind of switch cubicle fuse unit and uses the solid insulation switch cabinet of this fuse unit.Wherein a kind of switch cubicle fuse cylindrical shell of fuse unit is provided with end of incoming cables for being connected with on-load switch, also be provided with the leading-out terminal for being connected with cable termination and auxiliary earth switch, one of them of fuse cylindrical shell and fuse cover is provided with cannelure and/or annular wall, both another is provided with for coordinating with cannelure and/or annular wall sleeve and forms annular wall and/or the cannelure of maze-type structure, has radial clearance between the annular wall that the cannelure on fuse cylindrical shell and/or annular wall and fuse unit cover and/or cannelure.During above-mentioned switch cubicle fuse unit assembling, centering is good, easy for installation, and gap defines non-tight connection, can ensure good heat dispersion, meanwhile, the maze-type structure that annular wall and cannelure are formed can prevent creeping discharge, form surface insulation, ensure insulation property.
Description
Technical field
The utility model relates to a kind of switch cubicle fuse unit and uses the solid insulation switch cabinet of this fuse unit.
Background technology
Fuse unit is one of indispensable vitals in switch cubicle; circuit can be cut off when electric current is excessive and make dropout thimble action wherein and realize threading off; safeguard protection effect is played to switch cubicle, therefore, the fail safe of the direct influencer's high-tension switch cabinet operation of performance of fuse unit.
The fuse unit that existing a kind of solid insulation switch cabinet such as, use, comprise fuse cylindrical shell and fuse cover, described fuse cylindrical shell is provided with the end of incoming cables for being connected with on-load switch, also be provided with the leading-out terminal for being connected with cable termination and auxiliary earth switch, fuse inner barrel is provided with fuse installation cavity; Fuse cover is in-built to be furnished with the dropout thimble along the axial movable setting of fuse unit and to be provided with the thimble perforation of stretching out for dropout thimble, and dropout thimble drives corresponding tripping mechanism action for outwards extending when fuse blows.The fuse cover of existing fuse unit needs shutoff to be fixed on fuse cylindrical shell when using, and the junction of fuse cylindrical shell and fuse cover adopts silicone rubber sleeve seal and realize interfacial insulator.Owing to adopting silicon rubber interfacial insulator, complex operation when installing fuse cover in installation process, need larger operating physical force and stricter operating environment, labour intensity is large, and centering is poor, easily occur that the problems such as not in place or interfacial insulator inefficacy installed by fuse, be not easy to installation, inspection and maintenance; Further, due to interfacial insulator employing is sealed construction, is therefore unfavorable for that fuse unit dispels the heat, easily causes the temperature rise of switch cubicle too high, affect the reliability and stability of switch cubicle.In addition, fuse cylindrical shell in existing switch cubicle fuse unit is primarily of metal support and insulating cylinder two parts composition, size is relative with insulation property fixing, and fuse cylindrical shell size needed for different electric pressure is different with insulation property, therefore existing fuse unit is difficult to the requirement of satisfied different electric pressure, poor universality.
Utility model content
The purpose of this utility model is to provide a kind of switch cubicle fuse unit being convenient to install, and meanwhile, the utility model additionally provides a kind of solid insulation switch cabinet using this switch cubicle fuse unit.
The technical scheme that in the utility model, a kind of switch cubicle fuse unit adopts is: switch cubicle fuse unit, comprise fuse cylindrical shell and fuse cover, described fuse cylindrical shell is provided with the end of incoming cables for being connected with on-load switch, also be provided with the leading-out terminal for being connected with cable termination and auxiliary earth switch, one of them of described fuse cylindrical shell and fuse cover is provided with cannelure and/or annular wall, both another is provided with for coordinating with described cannelure and/or annular wall sleeve and forms annular wall and/or the cannelure of maze-type structure, between the annular wall that cannelure on fuse cylindrical shell and/or annular wall and fuse unit cover and/or cannelure, there is radial clearance.
Described fuse cylindrical shell is provided with one cylindrical shell cannelure, cylindrical shell annular wall together with described cylindrical shell cannelure is formed between the inner chamber of fuse cylindrical shell; Described fuse unit covers the cover cannelure being provided with and inserting for described cylindrical shell annular wall for one, and the radial outside of described cover cannelure is provided with together for inserting the cover annular wall in described cylindrical shell cannelure.
Described fuse unit has dropout thimble, described fuse unit covers and is provided with for the axially movable thimble container cavity that arrange of described dropout thimble along fuse cover, be provided with the maze-type structure formed by the thimble annular wall coordinated along the mutual sleeve of described axis and thimble cannelure between described fuse cover and described dropout thimble, between the thimble annular wall that mutual sleeve coordinates and thimble cannelure, there is radial clearance.
Described fuse cylindrical shell is moulding by casting, and described end of incoming cables and leading-out terminal are formed by the inlet wire copper rod be cast in fuse cylindrical shell and outlet copper rod respectively, and described auxiliary earth switch is formed by the auxiliary earth copper rod be cast in fuse cylindrical shell.
Described fuse unit covers the corresponding end be provided with for fuse and fixes and conduct electricity the connector of connection, and described fuse cylindrical shell is provided with for conducting electricity with described connector the conductive contact finger be connected, and described leading-out terminal and auxiliary earth switch conduct electricity with described conductive contact finger and be connected.
Described connector is be provided with the conduction copper sheathing supplying the corresponding end of described fuse coaxially to plug fixing interstitial hole.
The technical scheme that in the utility model, a kind of solid insulation switch cabinet adopts is: a kind of solid insulation switch cabinet, comprise cabinet and fuse unit, described fuse unit comprises fuse cylindrical shell and fuse cover, described fuse cylindrical shell is provided with the end of incoming cables for being connected with on-load switch, also be provided with the leading-out terminal for being connected with cable termination and auxiliary earth switch, one of them of described fuse cylindrical shell and fuse cover is provided with cannelure and/or annular wall, both another is provided with for coordinating with described cannelure and/or annular wall sleeve and forms annular wall and/or the cannelure of maze-type structure, between the annular wall that cannelure on fuse cylindrical shell and/or annular wall and fuse unit cover and/or cannelure, there is radial clearance.
Described fuse cylindrical shell is provided with one cylindrical shell cannelure, cylindrical shell annular wall together with described cylindrical shell cannelure is formed between the inner chamber of fuse cylindrical shell; Described fuse unit covers the cover cannelure being provided with and inserting for described cylindrical shell annular wall for one, and the radial outside of described cover cannelure is provided with together for inserting the cover annular wall in described cylindrical shell cannelure.
Described fuse unit has dropout thimble, described fuse unit covers and is provided with for the axially movable thimble container cavity that arrange of described dropout thimble along fuse cover, be provided with the maze-type structure formed by the thimble annular wall coordinated along the mutual sleeve of described axis and thimble cannelure between described fuse cover and described dropout thimble, between the thimble annular wall that mutual sleeve coordinates and thimble cannelure, there is radial clearance.
Described fuse unit covers the corresponding end be provided with for fuse and fixes and conduct electricity the connector of connection, described connector is be provided with the conduction copper sheathing supplying the corresponding end of described fuse coaxially to plug fixing interstitial hole, described fuse cylindrical shell is provided with for conducting electricity with described connector the conductive contact finger be connected, and described leading-out terminal and auxiliary earth switch conduct electricity with described conductive contact finger and be connected.
The utility model adopts technique scheme, the switch cubicle fuse cylindrical shell of fuse unit is provided with the end of incoming cables for being connected with on-load switch, also be provided with the leading-out terminal for being connected with cable termination and auxiliary earth switch, one of them of fuse cylindrical shell and fuse cover is provided with cannelure and/or annular wall, both another is provided with for coordinating with described cannelure and/or annular wall sleeve and forms annular wall and/or the cannelure of maze-type structure, between the annular wall that cannelure on fuse cylindrical shell and/or annular wall and fuse unit cover and/or cannelure, there is radial clearance, by the above-mentioned annular wall that arranges between fuse cylindrical shell and fuse cover and cannelure, annular wall and cannelure sleeve is relied on to coordinate fuse cylindrical shell and fuse cover during installation, centering is good, labour intensity is low, easy for installation, and gap defines non-tight to be connected, good heat dispersion can be ensured, simultaneously, the maze-type structure that annular wall and cannelure are formed can prevent creeping discharge, form surface insulation, ensure insulation property.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of an embodiment of a kind of switch cubicle fuse unit in the utility model;
Fig. 2 is the structural representation of fuse cylindrical shell in Fig. 1;
Fig. 3 is that the fuse unit in Fig. 1 mounts cover and mixes the later structural representation of fuse.
The name that in figure, each Reference numeral is corresponding is called: 10-fuse cylindrical shell, 20-plum blossom deck, 21-end of incoming cables, 22-inlet wire copper rod, 23-leading-out terminal, 24-outlet copper rod, 25-conductive contact finger, 26-auxiliary earth switch, 27-auxiliary earth copper rod, 30-cylindrical shell cannelure, 31-cylindrical shell annular wall, 40-fuse cover, 41-cover cannelure, 42-cover annular wall, 43-conducts electricity copper sheathing, 44-interstitial hole, 45-thimble through hole, 50-dropout thimble, 51-thimble annular wall, 52-thimble cannelure, 60-fuse, 70-handle.
Embodiment
In the utility model, an a kind of embodiment of switch cubicle fuse unit is as shown in Fig. 1 ~ Fig. 3, is a kind of fuse unit for solid insulation switch cabinet, forms primarily of fuse cylindrical shell 10 and fuse cover 40.
Fuse cylindrical shell 10 is moulding by casting, inner cast is fixed with inlet wire copper rod 22, outlet copper rod 24 and auxiliary earth copper rod 27, the outer end of inlet wire copper rod 22 forms the end of incoming cables 21 being used for being connected with on-load switch, the outer end of outlet copper rod 24 forms the leading-out terminal 23 being used for being connected with cable termination, and auxiliary earth copper rod 27 is connected with auxiliary earth switch 26.Wherein auxiliary earth switch 26 adopts horizontal direct acting plug-in structure of the prior art, and motion cavity adopts sealed construction, compact conformation, good reliability.
Fuse cover 40 shutoff is plugged in the front opening of fuse cylindrical shell 10 and coaxially arranges with fuse cylindrical shell 10, the front end surface of fuse cylindrical shell 10 is provided with one cylindrical shell cannelure 30, cylindrical shell annular wall 31 together with described cylindrical shell cannelure 30 is formed between the inner chamber of fuse cylindrical shell 10; The rear end end face of fuse cover is provided with the cover cannelure 41 inserted for described cylindrical shell annular wall 31 for one, the radial outside of described cover cannelure 41 is provided with together for inserting the cover annular wall 42 in described cylindrical shell cannelure 30, by above-mentioned annular wall and the cannelure of setting between fuse cylindrical shell 10 and fuse cover 40, annular wall and cannelure sleeve is relied on to coordinate fuse cylindrical shell 10 and fuse cover 40 during installation, centering is good, labour intensity is low, easy for installation, and gap defines non-tight to be connected, and can ensure good heat dispersion.
Fuse cover 40 rear end is coaxially fixed with conduction copper sheathing 43, and the corresponding end that conduction copper sheathing 43 is provided with for fuse 60 coaxially plugs fixing interstitial hole 44, forms and fix for fuse 60 and to conduct electricity the connector of connection.Accordingly, the inwall of fuse cylindrical shell 10 is fixed with conductive contact finger 25, this conductive contact finger 25 is formed by power spring contact, can be connected, ensure good through-current capability when fuse cover 40 plugs and puts in place with the outer peripheral face reliable contacts conducting electricity of conduction copper sheathing 43.The inner of outlet copper rod 24 is conducted electricity with conductive contact finger 25 with the inner of auxiliary earth copper rod 27 simultaneously and is connected; The inwall of fuse cylindrical shell 10 rear end is provided with plum blossom deck 20, and the inner of inlet wire copper rod 22 is conducted electricity with plum blossom deck 20 and is connected, easy-to-connect.
Fuse cover 40 is provided with thimble container cavity in the front of conduction copper sheathing 43, corresponding dropout thimble 50 is movably arranged in thimble container cavity along the axis of fuse cover 40 in advance, the external diameter of dropout thimble 50 is greater than the internal diameter of conduction copper sheathing 43, can avoid deviating from thimble container cavity.Fuse cover 40 front end is provided with the thimble through hole 45 passed for dropout thimble 50, dropout thimble 50 can be stretched out when fault and drive corresponding tripping mechanism.Twice thimble annular wall 51 and thimble cannelure 52 is provided with between fuse cover 40 and described dropout thimble 50, thimble annular wall corresponding between fuse cover 40 and dropout thimble 50 and thimble cannelure vertically mutual sleeve coordinate and have radial clearance between the two, form maze-type structure, form surface insulation, the regular event of dropout thimble 50 can be ensured while ensureing insulation effect.Further, dropout thimble 50 is a simple revolving parts, and process simple and be convenient to assembling, in dropout process, energy loss is few, and Interruption is stablized, and reliability is high.
For the ease of using, the front end of fuse cover 40 is also fixed with handle 70, is conducive to extracting of fuse cover 40, rapid operation.In order to guarantor palp position reliable ground, ensure maintainer's personal safety, the outer surface of fuse unit is coated with conduction or semiconductive shielding layer, can pass through screen reliable ground during use.
During installation, the fuse 60 in advance fastening conduction copper sheathing 43 being arranged on fuse cover 40 will make its front end and conduction copper sheathing 43 reliable contacts, then make to be provided with cover cannelure 41 on the fuse cover 40 of fuse 60 and cover annular wall 42 and aim at cylindrical shell annular wall 31 on fuse cylindrical shell 10 respectively and cylindrical shell cannelure 30 inwardly pushes, make corresponding cannelure form sleeve with annular wall to coordinate, form maze-type structure, form surface insulation.After fuse cover 40 is in place, conduction plum blossom deck 20 reliable contacts on fuse 60 rear end and fuse cylindrical shell 10, conducts electricity copper sheathing 43 and the power spring contact reliable contacts on fuse cylindrical shell 10 inwall simultaneously, realizes being communicated with of fuse 60 and circuit.Because the gap in maze-type structure between annular wall and cannelure is less, do not need to carry out radial location to fuse cover 40 in addition, certainly, in order to improve installation accuracy, also can arrange corresponding supporting construction and carry out radial location to fuse cover 40, this is that those skilled in the art do not need to pay creative work and attainable.Finally, rely on the corresponding top laminated structure arranged on switch cubicle fuse cover 40 to be compressed vertically the installation namely completing fuse unit, assembling, easy for installation, be convenient to install at use spot replace, thermal diffusivity is good.
In the utility model, an a kind of embodiment of solid insulation switch cabinet comprises cabinet and fuse unit, and the structure of cabinet is same as the prior art, and the fuse unit in fuse unit and above-described embodiment, no longer describes in detail herein.
In the above-described embodiments, fuse cylindrical shell 10 is together with on fuse cover 40, the quantity of cannelure/annular wall is, and the cannelure/annular wall of threading off between thimble 50 and fuse cover 40 is twice.In other embodiments of the present utility model, on fuse cylindrical shell 10 and fuse cover 40 cannelure/annular wall quantity and between dropout thimble 50 and fuse cover 40 quantity of upper cannelure/annular wall also can increase and decrease.
Claims (10)
1. a switch cubicle fuse unit, comprise fuse cylindrical shell and fuse cover, described fuse cylindrical shell is provided with the end of incoming cables for being connected with on-load switch, also be provided with the leading-out terminal for being connected with cable termination and auxiliary earth switch, it is characterized in that: one of them of described fuse cylindrical shell and fuse cover is provided with cannelure and/or annular wall, both another is provided with for coordinating with described cannelure and/or annular wall sleeve and forms annular wall and/or the cannelure of maze-type structure, between the annular wall that cannelure on fuse cylindrical shell and/or annular wall and fuse unit cover and/or cannelure, there is radial clearance.
2. a kind of switch cubicle fuse unit according to claim 1, is characterized in that: described fuse cylindrical shell is provided with one cylindrical shell cannelure, cylindrical shell annular wall together with described cylindrical shell cannelure is formed between the inner chamber of fuse cylindrical shell; Described fuse unit covers the cover cannelure being provided with and inserting for described cylindrical shell annular wall for one, and the radial outside of described cover cannelure is provided with together for inserting the cover annular wall in described cylindrical shell cannelure.
3. a kind of switch cubicle fuse unit according to claim 1 and 2, it is characterized in that: described fuse unit has dropout thimble, described fuse unit covers and is provided with for the axially movable thimble container cavity that arrange of described dropout thimble along fuse cover, be provided with the maze-type structure formed by the thimble annular wall coordinated along the mutual sleeve of described axis and thimble cannelure between described fuse cover and described dropout thimble, between the thimble annular wall that mutual sleeve coordinates and thimble cannelure, there is radial clearance.
4. a kind of switch cubicle fuse unit according to claim 1 and 2, it is characterized in that: described fuse cylindrical shell is moulding by casting, described end of incoming cables and leading-out terminal are formed by the inlet wire copper rod be cast in fuse cylindrical shell and outlet copper rod respectively, and described auxiliary earth switch is formed by the auxiliary earth copper rod be cast in fuse cylindrical shell.
5. a kind of switch cubicle fuse unit according to claim 1 and 2, it is characterized in that: described fuse unit covers the corresponding end be provided with for fuse and fixes and conduct electricity the connector of connection, described fuse cylindrical shell is provided with for conducting electricity with described connector the conductive contact finger be connected, and described leading-out terminal and auxiliary earth switch conduct electricity with described conductive contact finger and be connected.
6. a kind of switch cubicle fuse unit according to claim 5, is characterized in that: described connector is be provided with the conduction copper sheathing supplying the corresponding end of described fuse coaxially to plug fixing interstitial hole.
7. a solid insulation switch cabinet, comprise cabinet and fuse unit, described fuse unit comprises fuse cylindrical shell and fuse cover, described fuse cylindrical shell is provided with the end of incoming cables for being connected with on-load switch, also be provided with the leading-out terminal for being connected with cable termination and auxiliary earth switch, it is characterized in that: one of them of described fuse cylindrical shell and fuse cover is provided with cannelure and/or annular wall, both another is provided with for coordinating with described cannelure and/or annular wall sleeve and forms annular wall and/or the cannelure of maze-type structure, between the annular wall that cannelure on fuse cylindrical shell and/or annular wall and fuse unit cover and/or cannelure, there is radial clearance.
8. a kind of solid insulation switch cabinet according to claim 7, is characterized in that: described fuse cylindrical shell is provided with one cylindrical shell cannelure, cylindrical shell annular wall together with described cylindrical shell cannelure is formed between the inner chamber of fuse cylindrical shell; Described fuse unit covers the cover cannelure being provided with and inserting for described cylindrical shell annular wall for one, and the radial outside of described cover cannelure is provided with together for inserting the cover annular wall in described cylindrical shell cannelure.
9. a kind of solid insulation switch cabinet according to claim 7 or 8, it is characterized in that: described fuse unit has dropout thimble, described fuse unit covers and is provided with for the axially movable thimble container cavity that arrange of described dropout thimble along fuse cover, be provided with the maze-type structure formed by the thimble annular wall coordinated along the mutual sleeve of described axis and thimble cannelure between described fuse cover and described dropout thimble, between the thimble annular wall that mutual sleeve coordinates and thimble cannelure, there is radial clearance.
10. a kind of solid insulation switch cabinet according to claim 7 or 8, it is characterized in that: described fuse unit covers the corresponding end be provided with for fuse and fixes and conduct electricity the connector of connection, described connector is be provided with the conduction copper sheathing supplying the corresponding end of described fuse coaxially to plug fixing interstitial hole, described fuse cylindrical shell is provided with for conducting electricity with described connector the conductive contact finger be connected, and described leading-out terminal and auxiliary earth switch conduct electricity with described conductive contact finger and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642881.2U CN204349232U (en) | 2014-10-31 | 2014-10-31 | A kind of switch cubicle fuse unit and use the solid insulation switch cabinet of this fuse unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642881.2U CN204349232U (en) | 2014-10-31 | 2014-10-31 | A kind of switch cubicle fuse unit and use the solid insulation switch cabinet of this fuse unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204349232U true CN204349232U (en) | 2015-05-20 |
Family
ID=53232475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642881.2U Withdrawn - After Issue CN204349232U (en) | 2014-10-31 | 2014-10-31 | A kind of switch cubicle fuse unit and use the solid insulation switch cabinet of this fuse unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204349232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987211A (en) * | 2018-08-24 | 2018-12-11 | 深圳市南锐电气技术有限公司 | The surface 12KV sprays the fuse unit and the fuse unit spraying process of conductive spray coating |
-
2014
- 2014-10-31 CN CN201420642881.2U patent/CN204349232U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987211A (en) * | 2018-08-24 | 2018-12-11 | 深圳市南锐电气技术有限公司 | The surface 12KV sprays the fuse unit and the fuse unit spraying process of conductive spray coating |
| CN108987211B (en) * | 2018-08-24 | 2020-08-18 | 深圳市南锐电气技术有限公司 | Fuse cylinder with 12KV surface sprayed with conductive spraying layer and spraying process of fuse cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150520 Effective date of abandoning: 20171124 |
|
| AV01 | Patent right actively abandoned |