CN201000856Y - Ceramic vacuum switch tube - Google Patents
Ceramic vacuum switch tube Download PDFInfo
- Publication number
- CN201000856Y CN201000856Y CNU2007201061402U CN200720106140U CN201000856Y CN 201000856 Y CN201000856 Y CN 201000856Y CN U2007201061402 U CNU2007201061402 U CN U2007201061402U CN 200720106140 U CN200720106140 U CN 200720106140U CN 201000856 Y CN201000856 Y CN 201000856Y
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- ceramic
- contact
- end component
- utility
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- 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.)
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Abstract
The utility model relates to a ceramic vacuum switch tube, which comprises a guide sleeve, a ceramic insulated casing, a movable end component, and a static end component. The utility model is characterized in that one end of the ceramic insulated casing is connected with a corrugated tube through a kovar component, the other end of the ceramic insulated casing is connected with the static conducting rod of the static end component through a kovar end cover, one movable conducting end of the movable end component is threaded through the middle hole of the guide sleeve, the contact of the movable end component is corresponding to the contact of the static end component, and a middle shield barrel is directly connected with the inner wall of the ceramic insulated casing. The casing of the ceramic tube of the utility model has longer creepage distance, the contact is made of Cu-Cr material, the voltage withstand strength, the withstanding current capability, the breaking short-circuit current capability and the making current capability are all strong, the electric life is long, the loop resistance is low, the contact structure is designed the function of absorbing switch-on mechanical energy, to make the bounce value of the contact greatly reduced.
Description
Technical field
The utility model relates to a kind of vacuum switch tube, especially relates to a kind of to the improved ceramic vacuum switching tube of structure of contact terminal.
Background technology
Vacuum switch tube belongs to the passive electrical vacuum device, and is supporting with all kinds of different switching mechanisms and form the high, medium and low voltage vaccum electric apparatus, as vacuum circuit-breaker, vacuum load switch, vacuum contactor, vacuum recloser, vacuum sectionalizer.It is widely used in each industrial circle such as metallurgy, electric power, oil, electric railway.
Because it is little that vacuum switch has a volume, function admirable, pollution-free, the life-span long, safe and reliablely be suitable for series of advantages such as frequent operation and developed rapidly.And vacuum switch tube is used for vacuum circuit-breaker, and its core technology parameter is to cut-off the road current capacity.And the ability of cut-offfing short circuit current depends primarily on the structural design of contact material and contact.The selection of contact material is most important; because it directly influences vacuum tube contact gap proof voltage level, short circuit current connecting-disconnecting function; simultaneously again can property with vacuum tube electrocorrosion-resisting performance, anti-melting welding and rated current admittance ability, Chopping Current closely related; product is because the problem on contact material and the structural design usually can cause shortcomings such as connecting-disconnecting function is low, the contact closing rebound is big at present.
The utility model content
In order to overcome above-mentioned defective, the purpose of this utility model provides a kind of ceramic vacuum switching tube of structure of contact terminal of new contact material.
To achieve these goals, the utility model adopts following technical scheme:
The ceramic vacuum switching tube, it comprises fairlead, ceramic insulation shell, moved end assembly, quiet end assembly, it is characterized in that: an end of ceramic insulation shell is connected with bellows by cutting down part, the other end of ceramic insulation shell is connected with the static conductive rod of quiet end assembly by cutting down end cap, moving conductive rod one end of moved end assembly passes the mesopore of fairlead, the contact of moved end assembly is corresponding with the contact of quiet end assembly, and the intershield tube directly is connected with the ceramic insulation outer casing inner wall.
The shell of earthenware is set to the full skirt shape, and contact adopts copper chromium material.
Structure of contact terminal is set to cup-like structure.
Therefore, the shell of earthenware of the present utility model has big creepage distance, contact adopts copper chromium material, compressive resistance, withstanding current capability, cut-off the short circuit current ability, the making current ability is all stronger, electric life is long, and have the little performance of loop resistance, structure of contact terminal design that the effect of the combined floodgate of absorption mechanical energy is arranged, the contact bounce value is declined to a great extent.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a structure of contact terminal schematic diagram of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
The ceramic vacuum switching tube, it comprise fairlead 1, ceramic insulation shell 2, moved end assembly 4, quiet end assembly 5,, it is characterized in that: an end of ceramic insulation shell 2 is connected with bellows by cutting down part 7, the other end of ceramic insulation shell is connected with the static conductive rod of quiet end assembly 5 by cutting down end cap, moving conductive rod one end of moved end assembly 4 passes the mesopore of fairlead 1, the contact 6 of moved end assembly 4 is corresponding with the contact of quiet end assembly 5, and intershield tube 3 directly is connected with ceramic insulation shell 2 inwalls.The shell of ceramic insulation shell 2 is set to the full skirt shape, and contact 6 adopts copper chromium material.
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the technical solution of the utility model is not limited to the foregoing description, and many distortion can also be arranged.All should think protection range of the present utility model.
Claims (4)
1, ceramic vacuum switching tube, it comprises fairlead, ceramic insulation shell, moved end assembly, quiet end assembly, it is characterized in that: an end of ceramic insulation shell is connected with bellows by cutting down part, the other end of ceramic insulation shell is connected with the static conductive rod of quiet end assembly by cutting down end cap, moving conductive one end of moved end assembly passes the mesopore of fairlead, the contact of moved end assembly is corresponding with the contact of quiet end assembly, and the intershield tube directly is connected with the ceramic insulation outer casing inner wall.
2, ceramic vacuum switching tube according to claim 1, it is characterized in that: the shell of ceramic insulation shell is set to the full skirt shape.
3, ceramic vacuum switching tube according to claim 1 and 2, it is characterized in that: structure of contact terminal is set to cup-like structure.
4, ceramic vacuum switching tube according to claim 1 is characterized in that: contact adopts copper chromium material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201061402U CN201000856Y (en) | 2007-01-31 | 2007-01-31 | Ceramic vacuum switch tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201061402U CN201000856Y (en) | 2007-01-31 | 2007-01-31 | Ceramic vacuum switch tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000856Y true CN201000856Y (en) | 2008-01-02 |
Family
ID=39015260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201061402U Expired - Fee Related CN201000856Y (en) | 2007-01-31 | 2007-01-31 | Ceramic vacuum switch tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000856Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465212A (en) * | 2014-12-22 | 2015-03-25 | 中电博瑞技术（北京）有限公司 | Quick energy-storage type vacuum switch |
-
2007
- 2007-01-31 CN CNU2007201061402U patent/CN201000856Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465212A (en) * | 2014-12-22 | 2015-03-25 | 中电博瑞技术（北京）有限公司 | Quick energy-storage type vacuum switch |
| CN104465212B (en) * | 2014-12-22 | 2017-02-01 | 中电博瑞技术（北京）有限公司 | Quick energy-storage type vacuum switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Xinanjiang Swithgear Manufacturing Co., Ltd. Assignor: Wang Ping Contract record no.: 2010330000335 Denomination of utility model: Formula for high-strength metallization of ceramic vacuum switch tube and application method thereof Granted publication date: 20080102 License type: Exclusive License Record date: 20100329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20130131 |