CN204088184U - Safe double power supply converting switch - Google Patents
Safe double power supply converting switch Download PDFInfo
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- CN204088184U CN204088184U CN201420531330.9U CN201420531330U CN204088184U CN 204088184 U CN204088184 U CN 204088184U CN 201420531330 U CN201420531330 U CN 201420531330U CN 204088184 U CN204088184 U CN 204088184U
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- fixed contact
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- power supply
- moving contact
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Abstract
The utility model discloses a kind of safe double power supply converting switch, aim to provide a kind of safe double power supply converting switch of not easily short circuit, its drip irrigation device is a kind of safe double power supply converting switch, comprise vacuum circuit breaker mechanism and power switching mechanism, described vacuum circuit breaker mechanism comprises shell, seal cover, fixed contact and moving contact, described shell is cylindrical and has cavity, described cavity extends one of them end face of shell and forms opening, described seal cover is disc and radius is identical with shell, described fixed contact comprises main fixed contact, fixed contact for subsequent use and output fixed contact, it is characterized in that: in described cavity pocket of outer cover, be provided with spacing block, described spacing block extends to circumference from the shell center of circle and cavity is divided at least three separate spaces, described fixed contact is all separately set in one of them space, described moving contact is connected with the shell center of circle and extends to the double power supply converting switch that fixed contact the utility model is applicable to high-voltage circuit.
Description
Technical field
The utility model relates to a kind of twin-power switch production technical field, and more particularly, it relates to a kind of safe double power supply converting switch of not easily short circuit.
Background technology
Double power supply converting switch is exactly have a power failure for some reason to automatically switch to the switch of another one power supply.General double power supply converting switch is widely used in the important place that skyscraper, community, hospital, airport, harbour, fire-fighting, metallurgy, chemical industry, weaving etc. do not allow power failure, in order to improve the reliability of power supply, a large amount of employing dual power supply circuit (Liang Tiao supply line in electric power system, it is generally a circuit on power system, article one, from reserve line), when a line power breaks down, by another line powering.For this reason need by control device, indoor will employing is no less than two high-tension switch cabinets, and open air is no less than high-voltage switch gear on two important actors, could realize the requirement selecting supply line.This control mode, not only adds equipment and the operating cost of user, but also the accident of power supply hidden danger that lies dormant.High-voltage switch gear on two and above high-tension switch cabinet/post, is difficult to realize the mechanical chain on high-tension switch cabinet/post between high-voltage switch gear.It is generally acknowledged only have the electrical interlocks of control device to be insecure, once the misoperation of control device fault or operations staff, all likely occur duplicate supply feed simultaneously, will major accident be led to.
At present, application number is that the Chinese patent of CN200820085170.4 discloses a kind of intelligent high-voltage dual power conversion switch, it comprises pressure box, be arranged on three main power source binding posts on pressure box casing, three stand-by power supply binding posts and three load wiring posts, and be arranged on the power switching mechanism in pressure box; Its design feature is: this switch also comprises a three-phase vacuum breaker device, and described three-phase vacuum breaker device comprises three vacuum interrupters, three moving contacts, three fixed contacts and operating mechanisms; Described each moving contact, fixed contact are electrically connected with corresponding main power source binding post, a stand-by power supply binding post by vacuum circuit breaker mechanism, and described each fixed contact, moving contact are electrically connected with corresponding load wiring post.
Although this intelligent high-voltage dual power conversion switch structure is simple, cost is lower, but dynamic/static contact is all arranged in same enclosure space in embodiment three, impurity is adhered to because processing technology and environmental pollution cause in space, contact can puncture the meagre air under vacuum state under extra-high voltage "on" position, produce electric arc thus cause short circuit, the severe safety accident such as electric current pours in down a chimney, there is certain potential safety hazard.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is the safe double power supply converting switch providing a kind of not easily short circuit.
For achieving the above object, the utility model provides following technical scheme: a kind of safe double power supply converting switch, comprise vacuum circuit breaker mechanism and power switching mechanism, described vacuum circuit breaker mechanism comprises shell, seal cover, fixed contact and moving contact, described shell is cylinder type structure and has cavity, described cavity extends one of them end face of shell and forms opening, described seal cover is disc and radius is identical with shell, described fixed contact comprises main fixed contact, fixed contact for subsequent use and output fixed contact, some spacing blocks are provided with in described cavity pocket of outer cover, described each spacing block extends to the periphery of shell and cavity is divided at least three separate spaces from the shell center of circle, described main fixed contact, fixed contact for subsequent use and output fixed contact are all separately set in one of them space, described moving contact is connected with the shell center of circle and extends to fixed contact.
By adopting technique scheme, spacing block is by main fixed contact, fixed contact for subsequent use and export fixed contact separation in respective independently enclosure space, the insulation property between contact are increased substantially, avoid contact and connect the situation producing electric arc after high voltage and cause the accidents such as short circuit, have higher fail safe, relative atmospheric insulate, and adopts autonomous closure insulation stronger to environmental suitability, also can normally work when humidity is higher the threat that is not short-circuited, and improves practicality.
The utility model is set to further: described main fixed contact comprises a pair contact, described fixed contact for subsequent use and export fixed contact and main fixed contact same structure, described moving contact is circular arc and is arranged between two panels contact, described movable contact spring is that rotating shaft is articulated with in shell with housing axis, described spacing block is provided with breach, described breach to be arranged in moving contact rotary motion trace and breach size and moving contact suitable.
By adopting technique scheme, breach on spacing block facilitates the rotation of moving contact, improve moving contact reaction speed, reduce the shortest time needed for electrical source exchange, improve the combination property of safe double power supply converting switch, simultaneously contact the contact area that can improve fixed contact and moving contact is set, strengthened electrical efficiency, reduce the loss in circuit connection, improve the performance of switch, oxide layer on the effectively clean moving contact of friction energy simultaneously between moving contact and fixed contact and fixed contact and granule foreign etc., ensure the contact grade between contact directly, improve the anti-oxidant and contamination resistance of product.
The utility model is set to further: described moving contact is also fixedly connected with dead ring, and described dead ring is concentric with moving contact and radius, thickness are all identical, and described dead ring and moving contact form complete circle jointly.
By adopting technique scheme, dead ring rotates with moving contact simultaneously, fill up the gap of the breach in moving contact motion locus, further raising fixed contact insulation property each other, improve circuit anti-short circuit capability, eliminate electric current and the safety hazards such as to pour in down a chimney, dead ring contacts with the fixed contact do not used and reduces contact position aerial open-assembly time simultaneously, improve antioxygenic property, dead ring equally also can play the effect keeping contact surface to clean non-oxidation, improves useful life and the fail safe of safe double power supply converting switch.
The utility model is set to further: described contact edge and moving contact arc surface are equipped with chamfering.
By adopting technique scheme, facilitating the clamping each other of moving contact and dead ring and fixed contact, reducing the resistance of motion of moving contact during Switching power, improve the electrical source exchange speed of switch, improve product service efficiency.
The utility model is set to further: described shell and seal cover circle centre position are provided with through hole, are provided with insulation rotating shaft in described through hole, and described moving contact is fixedly connected with rotating shaft.
By adopting technique scheme, moving contact seals to housing axis segment space by rotating shaft, improve the independence of enclosure space, facilitate power transmission to moving contact simultaneously, improve the specified switching times of safe double power supply converting switch, reinforce the connection status of moving contact, prevent the contingency that contact comes off, improve product safety performance.
Accompanying drawing explanation
Fig. 1 is vacuum circuit breaker mechanism structure schematic diagram;
Fig. 2 is the in-house schematic diagram of vacuum circuit breaker;
Fig. 3 is moving contact, dead ring and pivot structure schematic diagram;
Fig. 4 is shell mechanism schematic diagram;
Fig. 5 is the structural representation of the safe double power supply converting switch embodiment of the utility model.
Reference numeral: 1, seal cover; 2, shell; 22, through hole; 3, rotating shaft; 41, main fixed contact; 42, fixed contact is exported; 43, fixed contact for subsequent use; 411, contact; 5, spacing block; 51, breach; 6, cavity; 7, moving contact; 8, dead ring; 9, vacuum circuit breaker mechanism; 10, power switching mechanism.
Embodiment
Referring to figs. 1 through Fig. 5, the safe double power supply converting switch embodiment of the utility model is described further.
As shown in Figures 1 to 5, a kind of safe twin-power switch, comprise vacuum circuit-breaker 9 mechanism and power switching mechanism 10, described vacuum circuit-breaker 9 mechanism comprises shell 2, seal cover 1, fixed contact and moving contact 7, described shell 2 is cylindrical and has cavity 6, described cavity 6 extends one of them end face of shell 2 and forms opening, described seal cover 1 is disc and radius is identical with shell 2, described fixed contact comprises main fixed contact 41, fixed contact 43 for subsequent use and output fixed contact 42, spacing block 5 is provided with in described shell 2 cavity 6, described spacing block 5 extends to circumference from shell 2 center of circle and cavity 6 is divided at least three separate spaces, described fixed contact is all separately set in one of them space, described moving contact 7 is connected with shell 2 center of circle and extends to fixed contact.
Main fixed contact 41, fixed contact for subsequent use 43 and output fixed contact 42 are separated in respective independently enclosure space by spacing block 5, the insulation property between contact are increased substantially, avoid contact and connect the situation producing electric arc after high voltage and cause the accidents such as short circuit, there is higher fail safe, relative atmospheric insulate, adopt autonomous closure insulation stronger to environmental suitability, also can normally work when humidity is higher the threat that is not short-circuited, and improves practicality.
Described main fixed contact 41 comprises a pair contact 411, described fixed contact for subsequent use 43 and output fixed contact 42 have same structure with main fixed contact 41, described moving contact 7 is circular arc and is arranged between two panels contact 411, described movable contact spring 411 with shell 2 axis for rotating shaft 3 is articulated with in shell 2, described spacing block 5 is provided with breach 51, described breach 51 to be arranged in moving contact 7 rotary motion trace and breach 51 size and moving contact 7 suitable, described contact 411 edge and moving contact 7 arc surface are equipped with chamfering, described shell 2 and seal cover 1 circle centre position are provided with through hole 22, insulation rotating shaft 3 is provided with in described through hole 22, described moving contact 7 is fixedly connected with rotating shaft 3, described moving contact 7 is also fixedly connected with dead ring 8, described dead ring 8 is concentric and radius with moving contact 7, thickness is all identical, described dead ring 8 forms complete circle jointly with moving contact 7.
Breach 51 on spacing block 5 facilitates the rotation of moving contact 7, improve moving contact 7 reaction speed, reduce the shortest time needed for electrical source exchange, improve the combination property of safe double power supply converting switch, simultaneously contact 411 the contact area that can improve fixed contact and moving contact 7 is set, strengthened electrical efficiency, reduce the loss in circuit connection, improve the performance of switch, oxide layer on the effectively clean moving contact 7 of friction energy simultaneously between moving contact 7 and fixed contact and fixed contact and granule foreign etc., ensure the contact grade between contact directly, improve the anti-oxidant and contamination resistance of product.
Dead ring 8 rotates with moving contact 7 simultaneously, fill up the gap of the breach 51 in moving contact 7 movement locus, further raising fixed contact insulation property each other, improve circuit anti-short circuit capability, eliminate electric current and the safety hazards such as to pour in down a chimney, dead ring 8 contacts with the fixed contact do not used and reduces contact position aerial open-assembly time simultaneously, improve antioxygenic property, dead ring 8 equally also can play the effect keeping contact surface to clean non-oxidation, improves useful life and the fail safe of safe double power supply converting switch.
Chamfering facilitates moving contact 7 and dead ring 8 and fixed contact clamping each other, reduce the resistance of motion of moving contact 7 during Switching power, improve the electrical source exchange speed of switch, improve product service efficiency, moving contact 7 seals to shell 2 axis portion space by rotating shaft 3, improve the independence of enclosure space, facilitate power transmission to moving contact 7 simultaneously, improve the specified switching times of safe double power supply converting switch, reinforce the connection status of moving contact 7, prevent the contingency that contact comes off, improve product safety performance.
Described contact 411 is set to elastic piece structure, increase the pressure between moving contact 7, improve contact grade, main fixed contact 41, fixed contact 43 for subsequent use and the angle exported between fixed contact 42 are 120 degree, maximize the safe distance of contact members, reduce arcing, main fixed contact 41 is connected with main power source, fixed contact 43 for subsequent use is connected with stand-by power supply, export fixed contact 42 to be connected with load circuit, moving contact 7 can rotate in cavity 6, connect main fixed contact 41 and export fixed contact 42 or connect fixed contact 43 for subsequent use and export fixed contact 42, reach electrical source exchange object, described dead ring 8 simultaneously spacing moving contact 7 prevents the moving contact 7 motion excess of stroke, moving contact 7 also can turn to and exports fixed contact 42 centre position, make the equal open circuit of output circuit and main power source and stand-by power supply, increase switching function.
The above makes preferred implementation of the present utility model, and under not departing from the prerequisite of the utility model principle for the person of ordinary skill of the art, can also make some modification and improvement, these also should be considered as protection range of the present utility model.
Claims (5)
1. a safe double power supply converting switch, comprise vacuum circuit breaker mechanism and power switching mechanism, described vacuum circuit breaker mechanism comprises shell, seal cover, fixed contact and moving contact, described shell is cylinder type structure and has cavity, described cavity extends one of them end face of shell and forms opening, described seal cover is disc and radius is identical with shell, described fixed contact comprises main fixed contact, fixed contact for subsequent use and output fixed contact, it is characterized in that: in described cavity pocket of outer cover, be provided with some spacing blocks, described each spacing block extends to the periphery of shell and cavity is divided at least three separate spaces from the shell center of circle, described main fixed contact, fixed contact for subsequent use and output fixed contact are all separately set in one of them space, described moving contact is connected with the shell center of circle and extends to fixed contact.
2. the safe double power supply converting switch of one according to claim 1, it is characterized in that: described main fixed contact comprises a pair contact, described fixed contact for subsequent use and export fixed contact and main fixed contact same structure, described moving contact is circular arc and is arranged between two panels contact, described movable contact spring is that rotating shaft is articulated with in shell with housing axis, described spacing block is provided with breach, described breach to be arranged in moving contact rotary motion trace and breach size and moving contact suitable.
3. the safe double power supply converting switch of one according to claim 2, it is characterized in that: described moving contact is also fixedly connected with dead ring, described dead ring is concentric with moving contact and radius, thickness are all identical, and described dead ring and moving contact form complete circle jointly.
4. the safe double power supply converting switch of one according to claim 3, is characterized in that: described contact edge and moving contact arc surface are equipped with chamfering.
5. the safe double power supply converting switch of one according to claim 4, is characterized in that: described shell and seal cover circle centre position are provided with through hole, are provided with insulation rotating shaft in described through hole, and described moving contact is fixedly connected with rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531330.9U CN204088184U (en) | 2014-09-16 | 2014-09-16 | Safe double power supply converting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531330.9U CN204088184U (en) | 2014-09-16 | 2014-09-16 | Safe double power supply converting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204088184U true CN204088184U (en) | 2015-01-07 |
Family
ID=52180866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420531330.9U Expired - Fee Related CN204088184U (en) | 2014-09-16 | 2014-09-16 | Safe double power supply converting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204088184U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026596A (en) * | 2017-03-16 | 2017-08-08 | 上海电机集团梅山电机有限公司 | A kind of electrical machine energy-saving double speed converter |
| CN110459412A (en) * | 2019-07-23 | 2019-11-15 | 杭州之江开关股份有限公司 | A kind of twin-power switch power supply electricity getting device and its operating method |
| CN112117138A (en) * | 2019-06-20 | 2020-12-22 | Abb瑞士股份有限公司 | Electrical switch |
-
2014
- 2014-09-16 CN CN201420531330.9U patent/CN204088184U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026596A (en) * | 2017-03-16 | 2017-08-08 | 上海电机集团梅山电机有限公司 | A kind of electrical machine energy-saving double speed converter |
| CN107026596B (en) * | 2017-03-16 | 2024-02-09 | 上海电机集团梅山电机有限公司 | Energy-saving double-speed converter for motor |
| CN112117138A (en) * | 2019-06-20 | 2020-12-22 | Abb瑞士股份有限公司 | Electrical switch |
| CN112117138B (en) * | 2019-06-20 | 2023-06-09 | Abb瑞士股份有限公司 | Electrical switch |
| CN110459412A (en) * | 2019-07-23 | 2019-11-15 | 杭州之江开关股份有限公司 | A kind of twin-power switch power supply electricity getting device and its operating method |
| CN110459412B (en) * | 2019-07-23 | 2024-03-19 | 杭州之江开关股份有限公司 | Dual-power switching power supply electricity taking device and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |