CN101807489A - Three-station switching tube - Google Patents
Three-station switching tube Download PDFInfo
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- CN101807489A CN101807489A CN 201010158263 CN201010158263A CN101807489A CN 101807489 A CN101807489 A CN 101807489A CN 201010158263 CN201010158263 CN 201010158263 CN 201010158263 A CN201010158263 A CN 201010158263A CN 101807489 A CN101807489 A CN 101807489A
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- contact
- fixed contact
- switching tube
- station switching
- head
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a three-station switching tube, which comprises an arc extinguish chamber with a sealed cavity, a moving contact arranged in the sealed cavity and a first fixed contact. The moving contact comprises a conductive arm and a contact head electrically connected with the conductive arm; the contact head is driven by the conductive arm to do reciprocating motion; a second fixed contact is also arranged in the sealed cavity; and the contact head of the moving contact is arranged between the first fixed contact and the second fixed contact and is electrically connected with the first fixed contact or the second fixed contact when doing the reciprocating motion. The three-station switching tube of the invention is a structure which is suitable for manufacturing a high-voltage electrical appliance, effectively simplifies the high-voltage electrical appliance, reduces the volume of the high-voltage electrical appliance and decreases the manufacturing cost of the high-voltage electrical appliance.
Description
Technical field
The invention belongs to high pressure arc extinguishing technical field, be specifically related to a kind of high pressure three-station switching tube.
Background technology
The present three-station switching tube that is used for the vacuum high-pressure circuit breaker (being also referred to as arc control device or vacuum tube), in establish a moving contact and a fixed contact, be a kind of arc-control device of two stations.Being used for conventional products is to satisfy fully, but still can not adapt to the needs of some special occasions.
Summary of the invention
The three-station switching tube that the purpose of this invention is to provide a kind of three stations.The technical scheme that realizes the object of the invention is: a kind of three-station switching tube comprises arc control device with seal chamber, is arranged on the moving contact and first fixed contact in the seal chamber; The contact head that described moving contact comprises conductive arm and is used for being electrically connected with first fixed contact; Described contact head moves reciprocatingly under the drive of conductive arm; Also be provided with second fixed contact in the described seal chamber; The contact head of described moving contact is between described first fixed contact and second fixed contact, and described contact head is electrically connected with described first fixed contact or with second fixed contact in the process that moves reciprocatingly.
In the technique scheme, described moving contact and described first fixed contact are separately positioned on the two ends of described seal chamber, and described contact head is done straight reciprocating motion.
In the technique scheme, described second fixed contact is positioned at the seal chamber middle part, and described arc control device are provided with the electric connection terminal that is electrically connected with second fixed contact outward.
In the technique scheme, the central authorities of described second fixed contact are provided with open-work, and the external diameter of the contact head of described moving contact is greater than the external diameter of conductive arm, and the conductive arm of described moving contact is arranged in the open-work of this second fixed contact and leaves the gap with described second fixed contact.
In the technique scheme, described moving contact is when moving near first fixed contact, and the one side near first fixed contact of its contact head contacts with first fixed contact and realizes being electrically connected; Described moving contact is when moving away from second fixed contact, and the another side away from first fixed contact of its contact head contacts with second fixed contact and realizes being electrically connected.
In the technique scheme, the seal chamber of described arc control device is the vacuum chambers that vacuumize.
In the technique scheme, in the described arc control device, be arranged with bellows on the conductive arm of described moving contact.
In the technique scheme, the seal chamber of described arc control device is inflatable chamber or the inert gas filled inflatable chambers that are filled with sulfur hexafluoride gas.
The present invention has positive effect: (1) the present invention is by being provided with second fixed contact in the seal chamber of traditional arc control device, and allows moving contact in reciprocating process, is electrically connected with described first fixed contact or with second fixed contact; This structure can be so that the present invention has the function of three stations; So the High-Voltage Electrical Appliances that adopt the present invention to make are compared with adopting traditional double three-station switching tube, effectively simplified structure, reduce volume and reduce cost.
Description of drawings
Fig. 1 is a kind of structural representation of first kind of structure of the present invention;
Fig. 2 is a kind of structural representation of second kind of structure of the present invention.
Reference numeral is: arc control device 1, limit wall 11, electric connection terminal 12, seal chamber 13, moving contact 2, conductive arm 21, contact head 22, the one side 221 of contact head, another side 222, bellows 23, first fixed contact 3, conductive arm 31 and contact head 32, the second fixed contacts 4, open-work 41.
Embodiment
(embodiment 1)
Fig. 1 has shown a kind of embodiment of the present invention for a kind of structural representation of first kind of structure of the present invention.
Present embodiment is a kind of high pressure three-station switching tube, sees Fig. 1, comprises the arc control device 1 that possess ceramic shell, is arranged on the moving contact 2 and first fixed contact 3 in the arc control device 1; The contact head 22 that described moving contact 2 comprises conductive arm 21 and is used for being electrically connected with first fixed contact 3; Described contact head 22 moves reciprocatingly under the drive of conductive arm 21; Also be provided with second fixed contact 4 in the described arc control device 1; The contact head 22 of described moving contact 2 is between described first fixed contact 3 and second fixed contact 4, and described contact head 22 is electrically connected with described first fixed contact 3 or with second fixed contact 4 in the process that moves reciprocatingly.
In the present embodiment, the seal chamber 13 of described arc control device 1 is the vacuum chamber that vacuumizes, and is arranged with bellows 23 on the conductive arm 21 of described moving contact 2.
Described first fixed contact 3 comprises conductive arm 31 and contact head 32.
Described moving contact 2 and described first fixed contact 3 are separately positioned on the two ends of described arc control device 1 and insulated from each other, and described contact head 22 is done straight reciprocating motion.
Described second fixed contact 4 is positioned at arc control device 1 middle part, is provided with the electric connection terminal 12 that is electrically connected with second fixed contact 4 outside the described arc control device 1, and this electric connection terminal 12 and first fixed contact 3 are insulated from each other.Described arc control device 1 comprise ceramic limit wall 11, and described electric connection terminal 12 is fixed on the limit wall 11 by welding manner.
The central authorities of described second fixed contact are provided with open-work 41, and the external diameter of the contact head 22 of described moving contact 2 is greater than the external diameter of conductive arm 21, and the conductive arm 21 of described moving contact 2 is arranged in the open-work 41 of this second fixed contact and leaves the gap with described second fixed contact.
Described moving contact 2 is when moving near first fixed contact 3, the one side 221 near first fixed contact 3 of its contact head 22 contact with first fixed contact 3 and realize being electrically connected; Described moving contact 2 is when moving away from second fixed contact 4, and the another side 222 away from first fixed contact 3 of described contact head 22 contacts with second fixed contact 4 and realizes being electrically connected.
(embodiment 2)
Fig. 2 is a kind of structural representation of second kind of structure of the present invention, has shown second kind of embodiment of the present invention.
Present embodiment is substantially the same manner as Example 1, and difference is: the seal chamber 13 of described arc control device 1 is the inflatable chamber that is filled with sulfur hexafluoride gas, in concrete practice, also can adopt the inert gas that can increase insulation property; In addition, because adopting, present embodiment charges into sulfur hexafluoride gas increase insulation property, so no longer need sheathed bellows 23 on the conductive arm 21 of moving contact 2.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present invention extends out and still belong to protection scope of the present invention.
Claims (8)
1. three-station switching tube, comprise have seal chamber (13) arc control device (1), be arranged on moving contact (2) and first fixed contact (3) in the seal chamber (13); The contact head (22) that described moving contact (2) comprises conductive arm (21) and is used for being electrically connected with first fixed contact (3); Described contact head (22) moves reciprocatingly under the drive of conductive arm (21); It is characterized in that: also be provided with second fixed contact (4) in the described seal chamber (13); The contact head (22) of described moving contact (2) is positioned between described first fixed contact (3) and second fixed contact (4), and described contact head (22) is electrically connected with described first fixed contact (3) or with second fixed contact (4) in the process that moves reciprocatingly.
2. three-station switching tube according to claim 1 is characterized in that: described moving contact (2) and described first fixed contact (3) are separately positioned on the two ends of described seal chamber (13), and described contact head (22) is done straight reciprocating motion.
3. three-station switching tube according to claim 2 is characterized in that: described second fixed contact (4) is positioned at seal chamber (13) middle part, the outer electric connection terminal that is electrically connected with second fixed contact (4) that is provided with of described arc control device (1).
4. three-station switching tube according to claim 3, it is characterized in that: the central authorities of described second fixed contact are provided with open-work (41), the external diameter of the contact head (22) of described moving contact (2) is greater than the external diameter of conductive arm (21), and the conductive arm (21) of described moving contact (2) is arranged in the open-work (41) of this second fixed contact and leaves the gap with described second fixed contact.
5. three-station switching tube according to claim 4, it is characterized in that: described moving contact (2) is towards near first fixed contact (3) when mobile, and the one side near first fixed contact (3) of its contact head (22) (221) contacts with first fixed contact (3) and realizes being electrically connected; Described moving contact (2) is towards away from second fixed contact (4) when mobile, and the another side away from first fixed contact (3) of its contact head (22) (222) contacts with second fixed contact (4) and realizes being electrically connected.
6. three-station switching tube according to claim 4 is characterized in that: the seal chamber (13) of described arc control device (1) is the vacuum chamber that vacuumizes.
7. three-station switching tube according to claim 6 is characterized in that: in the described arc control device (1), be arranged with bellows (23) on the conductive arm (21) of described moving contact (2).
8. three-station switching tube according to claim 4 is characterized in that: the seal chamber (13) of described arc control device (1) is inflatable chamber or the inert gas filled inflatable chamber that is filled with sulfur hexafluoride gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158263 CN101807489A (en) | 2010-03-21 | 2010-03-21 | Three-station switching tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158263 CN101807489A (en) | 2010-03-21 | 2010-03-21 | Three-station switching tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101807489A true CN101807489A (en) | 2010-08-18 |
Family
ID=42609233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010158263 Pending CN101807489A (en) | 2010-03-21 | 2010-03-21 | Three-station switching tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101807489A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157297A (en) * | 2011-03-09 | 2011-08-17 | 西安森源开关技术研究所有限公司 | Three-station vacuum switch tube |
| CN103367025A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Vacuum arc extinguishing chamber |
| CN112951645A (en) * | 2021-01-28 | 2021-06-11 | 中国人民解放军海军工程大学 | Inflatable direct current arc-extinguishing chamber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416586A (en) * | 2000-06-23 | 2003-05-07 | 西门子公司 | Vacuum interrupter with two contact sysems |
| CN1547229A (en) * | 1999-01-25 | 2004-11-17 | 株式会社日立制作所 | Vacuum switching apparatus |
| CN200990482Y (en) * | 2006-09-29 | 2007-12-12 | 希捷爱斯（上海）电气有限公司 | Direct acting three-station switch |
-
2010
- 2010-03-21 CN CN 201010158263 patent/CN101807489A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1547229A (en) * | 1999-01-25 | 2004-11-17 | 株式会社日立制作所 | Vacuum switching apparatus |
| CN1416586A (en) * | 2000-06-23 | 2003-05-07 | 西门子公司 | Vacuum interrupter with two contact sysems |
| CN200990482Y (en) * | 2006-09-29 | 2007-12-12 | 希捷爱斯（上海）电气有限公司 | Direct acting three-station switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157297A (en) * | 2011-03-09 | 2011-08-17 | 西安森源开关技术研究所有限公司 | Three-station vacuum switch tube |
| CN102157297B (en) * | 2011-03-09 | 2013-12-18 | 西安森源开关技术研究所有限公司 | Three-station vacuum switch tube |
| CN103367025A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Vacuum arc extinguishing chamber |
| CN112951645A (en) * | 2021-01-28 | 2021-06-11 | 中国人民解放军海军工程大学 | Inflatable direct current arc-extinguishing chamber |
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Application publication date: 20100818 |