CN104103468A - Line connector provided with spring arc extinguishing device - Google Patents
Line connector provided with spring arc extinguishing device Download PDFInfo
- Publication number
- CN104103468A CN104103468A CN201410313861.5A CN201410313861A CN104103468A CN 104103468 A CN104103468 A CN 104103468A CN 201410313861 A CN201410313861 A CN 201410313861A CN 104103468 A CN104103468 A CN 104103468A
- Authority
- CN
- China
- Prior art keywords
- fuse
- spring
- arc
- extinguishing tube
- arc extinguishing
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/38—Means for extinguishing or suppressing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a line connector provided with a spring arc extinguishing device. The line connector comprises an arc extinguishing tube, a pressure relief cap and a fuse, wherein the upper end of the arc extinguishing tube is connected with an upper contact; the pressure relief cap is connected with the upper end of the upper contact; the lower end of the arc extinguishing tube is connected with a spring seat; through holes communicated with the arc extinguishing tube are formed in the spring seat and the upper contact respectively; a spring and a sliding contact are sleeved on an outer wall of the arc extinguishing tube; the spring is located between the spring seat and the sliding contact; a fuse fixing device is arranged on the sliding contact; the upper end of the fuse is laminated and fixed with the upper end of the upper contact by the pressure relief cap; the lower end of the fuse downwards and sequentially penetrates through the upper contact, the arc extinguishing tube and the spring seat, and then is folded back upwards to be connected with the fuse fixing device; and the length of the fuse allows the spring to be in a compression state. When the fuse is fused into two sections, the spring allows a distance between the two sections to be rapidly increased to achieve arc extinguishing; and the line connector is high in reliability, simple in structure, convenience to maintain, low in cost and high in practicability.
Description
Technical field
The present invention relates to circuit overload and short-circuit protection technical field, be specifically related to a kind of crane that is provided with spring arc-control device.
Background technology
Drop type crane is a kind of rated voltage 10kV that is applicable to, rated current 200A and following, the distribution line of frequency 50HZ and the overload of distribution transformer and short-circuit protection, mainly comprise insulated leg, moving contact, fixed contact, arc-extinguishing tube and fuse, when normal operation, arc-extinguishing tube forms make position after by fuse tensioning, when system breaks down, fault current makes fuse quick-break, walk abreast into electric arc, arc-extinguishing tube is subject to electric arc scorching hot, decomposite a large amount of gas, make to manage the very high pressure of interior formation, and strongly indulge and blow along arc-extinguishing tube, electric arc is elongated rapidly and extinguishes, after fuse blows, bottom fixed contact lose tension force and under turn over, make to tighten mechanism and discharge arc-extinguishing tube, arc-extinguishing tube falls formation and significantly cut-offs position.
Drop type crane has the following disadvantages: one, for guarantee arc-extinguishing tube can be smoothly, fall rapidly, its setting angle must be controlled between 15 degree to 30 degree, and require rotating part flexible, under environment, after long-term use will inevitably there is corrosion to a certain degree in rotating part in the open, flexibility ratio reduces, as do not changed in time, easily there is security incident; Two, there is sometimes Slow-disconnecting and slow-connecting or do not reach a phenomenon in drop type crane, when the operation of on-load or no-load transformer with certain electric current, operating personnel's Slow-disconnecting and slow-connecting forms electric arc, cause the injury of contact electric arc, affect the electric conductivity of contact, and then affect the normal use of crane, make operation of power networks have potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of crane that is provided with spring arc-control device, can solve existing drop type crane and when rotating part flexibility ratio reduces, easily occur security incident, an and Slow-disconnecting and slow-connecting or produce electric arc influence contact electric conductivity, the normal problem of using of impact while not reaching.
The present invention is achieved through the following technical solutions:
A kind of crane that is provided with spring arc-control device, comprise arc-extinguishing tube, pressure releasing cap and fuse, described arc-extinguishing tube upper end is connected with upper contact head, described pressure releasing cap is connected in upper contact head upper end, described arc-extinguishing tube lower end is connected with spring base, is respectively equipped with the through hole that is communicated with arc-extinguishing tube on described spring base and upper contact head, and described arc-extinguishing tube outer wall also overlaps spring and sliding contact, described spring is between spring base and sliding contact, and described sliding contact is provided with fuse fixture; Upper contact head upper end is fixed on by pressure releasing cap pressing in described fuse upper end, described fuse lower end is downwards successively through after upper contact head, arc-extinguishing tube and spring base, turn back and be upwards connected in fuse fixture, the length of described fuse makes spring in compressive state.
Described spring base is provided with the gathering sill that extends to sidewall from its bottom, and fuse is through gathering sill.
Described fuse fixture comprises the screw rod that is connected in sliding contact outer wall, on described screw rod, is connected with nut, and fuse lower end is wrapped on screw rod and compresses by nut.
Between described upper contact head and arc-extinguishing tube, pressure releasing cap and upper contact head, spring base and arc-extinguishing tube, be threaded connection respectively.
The present invention's advantage is compared with prior art:
One, fuse two ends are connected to upper contact head and sliding contact, by spring, apply tensile force, when fuse blows becomes two-section, the distance that spring makes to connect respectively between the two-section fuse of upper contact head and sliding contact is elongated and is realized arc extinguishing rapidly, there is not the possibility that occurs security incident because of the reduction of rotating part flexibility ratio, also there will not be Slow-disconnecting and slow-connecting or do not reach position phenomenon, reliability is high;
Two, simple in structure, easy to maintenance, low cost, practical.
Accompanying drawing explanation
Fig. 1 is crane "on" position schematic diagram of the present invention.
Fig. 2 is crane gate-dividing state schematic diagram of the present invention.
Embodiment
A kind of crane that is provided with spring arc-control device as shown in Figure 1, comprise arc-extinguishing tube 1, pressure releasing cap 3 and fuse 7, the described arc-extinguishing tube 1 upper end upper contact head 2 that has been threaded, described pressure releasing cap 3 is threadedly connected to upper contact head 2 upper ends, the described arc-extinguishing tube 1 lower end spring base 6 that has been threaded, on described spring base 6 and upper contact head 2, be respectively equipped with the through hole that is communicated with arc-extinguishing tube 1, described spring base 6 is provided with the gathering sill that extends to sidewall from its bottom, described arc-extinguishing tube 1 outer wall also overlaps spring 5 and sliding contact 4, described spring 5 is between spring base 6 and sliding contact 4, described sliding contact 4 is provided with fuse fixture 8, described fuse fixture 8 comprises the screw rod that is connected in sliding contact 4 outer walls, on described screw rod, be connected with nut, upper contact head 2 upper ends are fixed on by pressure releasing cap 3 pressings in described fuse 7 upper ends, described fuse 7 lower ends are downwards successively through after upper contact head 2, arc-extinguishing tube 1 and spring base 6, through the gathering sill on spring base 6, turn back and be upwards wrapped on screw rod and compress by nut, the length of described fuse 7 makes spring 5 in compressive state.
When crane is during in closing position, sliding contact is compressed tightening up under the effect of spring and fuse, with guarantee arc-extinguishing tube when the closing position from contracting; When circuit overload or short circuit, fuse blows, by means of the effect of spring, from arc-extinguishing tube, produce a large amount of arc extinguishing gases rapidly, electric arc is extinguished rapidly, to reduce the loss of arcing time and arc extinguishing material, after arc extinction, sliding contact is by spring jack-up, the visible obviously fracture of arc-extinguishing tube.
Claims (4)
1. a crane that is provided with spring arc-control device, comprise arc-extinguishing tube (1), pressure releasing cap (3) and fuse (7), it is characterized in that: described arc-extinguishing tube (1) upper end is connected with upper contact head (2), described pressure releasing cap (3) is connected in upper contact head (2) upper end, described arc-extinguishing tube (1) lower end is connected with spring base (6), on described spring base (6) and upper contact head (2), be respectively equipped with the through hole that is communicated with arc-extinguishing tube (1), described arc-extinguishing tube (1) outer wall also overlaps spring (5) and sliding contact (4), described spring (5) is positioned between spring base (6) and sliding contact (4), described sliding contact (4) is provided with fuse fixture (8), upper contact head (2) upper end is fixed on by pressure releasing cap (3) pressing in described fuse (7) upper end, described fuse (7) lower end is downwards successively through after upper contact head (2), arc-extinguishing tube (1) and spring base (6), turn back and be upwards connected in fuse fixture (8), the length of described fuse (7) makes spring (5) in compressive state.
2. a kind of crane that is provided with spring arc-control device as claimed in claim 1, is characterized in that: described spring base (6) is provided with the gathering sill that extends to sidewall from its bottom, and fuse (7) is through gathering sill.
3. a kind of crane that is provided with spring arc-control device as claimed in claim 1, it is characterized in that: described fuse fixture (8) comprises the screw rod that is connected in sliding contact (4) outer wall, on described screw rod, be connected with nut, fuse (7) lower end is wrapped on screw rod and compresses by nut.
4. a kind of crane that is provided with spring arc-control device as claimed in claim 1, is characterized in that: between described upper contact head (2) and arc-extinguishing tube (1), pressure releasing cap (3) and upper contact head (2), spring base (6) and arc-extinguishing tube (1), be threaded connection respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313861.5A CN104103468A (en) | 2014-07-03 | 2014-07-03 | Line connector provided with spring arc extinguishing device |
| PCT/CN2014/092791 WO2016000396A1 (en) | 2014-07-03 | 2014-12-02 | Line connector with spring arc-extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313861.5A CN104103468A (en) | 2014-07-03 | 2014-07-03 | Line connector provided with spring arc extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104103468A true CN104103468A (en) | 2014-10-15 |
Family
ID=51671514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410313861.5A Pending CN104103468A (en) | 2014-07-03 | 2014-07-03 | Line connector provided with spring arc extinguishing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104103468A (en) |
| WO (1) | WO2016000396A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016000396A1 (en) * | 2014-07-03 | 2016-01-07 | 江苏省电力公司洪泽县供电公司 | Line connector with spring arc-extinguishing device |
| CN108899242A (en) * | 2018-09-06 | 2018-11-27 | 湖南长高高压开关有限公司 | A kind of disconnecting switch with built-in bus switching current device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203496A (en) * | 2021-12-07 | 2022-03-18 | 广西电网有限责任公司玉林陆川供电局 | Drop-out fusing device of multiple type of fuse |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321576A (en) * | 1980-03-28 | 1982-03-23 | Rte Corporation | Fuse holder-under oil drywell loadbreak device |
| CN2687827Y (en) * | 2003-11-14 | 2005-03-23 | 河北光远电力实业有限公司 | Spray type fuse |
| CN201112314Y (en) * | 2007-05-09 | 2008-09-10 | 日本能源服务株式会社 | High voltage fuse |
| CN201196941Y (en) * | 2008-05-08 | 2009-02-18 | 日本能源服务株式会社 | Fuse barrel for high voltage fuse |
| CN201936829U (en) * | 2010-11-26 | 2011-08-17 | 日本能源服务株式会社 | Fuse drum for high-voltage fuse |
| CN202013858U (en) * | 2011-05-16 | 2011-10-19 | 曲秀均 | Built-in drop-out fuse for fully insulated melt pipe |
| CN203931994U (en) * | 2014-07-03 | 2014-11-05 | 江苏省电力公司洪泽县供电公司 | A kind of crane that is provided with spring arc-control device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737976A (en) * | 2005-08-08 | 2006-02-22 | 绍兴电力局 | Vacuum fuse for protecting single high-voltage parallel capacitor |
| CN202957212U (en) * | 2012-12-04 | 2013-05-29 | 周海兵 | High-voltage drop type fuse with arch-quenching quick-break structure |
| CN103367070B (en) * | 2013-07-08 | 2016-03-23 | 国家电网公司 | A kind of arc extinguishing structure of fuse |
| CN104103468A (en) * | 2014-07-03 | 2014-10-15 | 江苏省电力公司洪泽县供电公司 | Line connector provided with spring arc extinguishing device |
-
2014
- 2014-07-03 CN CN201410313861.5A patent/CN104103468A/en active Pending
- 2014-12-02 WO PCT/CN2014/092791 patent/WO2016000396A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321576A (en) * | 1980-03-28 | 1982-03-23 | Rte Corporation | Fuse holder-under oil drywell loadbreak device |
| CN2687827Y (en) * | 2003-11-14 | 2005-03-23 | 河北光远电力实业有限公司 | Spray type fuse |
| CN201112314Y (en) * | 2007-05-09 | 2008-09-10 | 日本能源服务株式会社 | High voltage fuse |
| CN201196941Y (en) * | 2008-05-08 | 2009-02-18 | 日本能源服务株式会社 | Fuse barrel for high voltage fuse |
| CN201936829U (en) * | 2010-11-26 | 2011-08-17 | 日本能源服务株式会社 | Fuse drum for high-voltage fuse |
| CN202013858U (en) * | 2011-05-16 | 2011-10-19 | 曲秀均 | Built-in drop-out fuse for fully insulated melt pipe |
| CN203931994U (en) * | 2014-07-03 | 2014-11-05 | 江苏省电力公司洪泽县供电公司 | A kind of crane that is provided with spring arc-control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016000396A1 (en) * | 2014-07-03 | 2016-01-07 | 江苏省电力公司洪泽县供电公司 | Line connector with spring arc-extinguishing device |
| CN108899242A (en) * | 2018-09-06 | 2018-11-27 | 湖南长高高压开关有限公司 | A kind of disconnecting switch with built-in bus switching current device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016000396A1 (en) | 2016-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Aihua Inventor after: Huang Yong Inventor after: Yang Wenhao Inventor after: Jiang Jianming Inventor after: Yao Jincheng Inventor after: Yu Yuean Inventor after: Yang Baohu Inventor before: Huang Yong Inventor before: Yang Aihua Inventor before: Jiang Jianming Inventor before: Yu Yuean Inventor before: Yang Wenhao Inventor before: Ji Yongkui |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUANG YONG YANG AIHUA JIANG JIANMING YU YUEAN YANG WENHAO JI YONGKUI TO: YANG AIHUA HUANG YONG YANG WENHAO JIANG JIANMING YAO JINCHENG YU YUEAN YANG BAOHU |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141015 |