CN201229880Y - Chamber type automatic duplicate supply converting switch - Google Patents
Chamber type automatic duplicate supply converting switch Download PDFInfo
- Publication number
- CN201229880Y CN201229880Y CNU2008201305204U CN200820130520U CN201229880Y CN 201229880 Y CN201229880 Y CN 201229880Y CN U2008201305204 U CNU2008201305204 U CN U2008201305204U CN 200820130520 U CN200820130520 U CN 200820130520U CN 201229880 Y CN201229880 Y CN 201229880Y
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- connecting rod
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Abstract
The utility model discloses a box-type automatic double-power change-over switch, which comprises a box, three main power soldering terminals, three backup power soldering terminals, three load soldering terminals and a power switching mechanism. The three main power soldering terminals, the three backup power soldering terminals, the three load soldering terminals and the power switching mechanism are arranged on the box body; wherein, the power switching mechanism comprises a main switching spindle and an auxiliary switching shaft; the main switching spindle is provided with three main cut-in contact tools which are used for cutting in the main power soldering terminals; the auxiliary switching shaft is equipped with auxiliary cut-in contact tools which are used for cutting in the backup power soldering terminals; and the main switching spindle and the auxiliary switching shaft are linked to each other through a linkage interaction mechanism. The utility model adopts the double-shaft linkage to realize the double-power change-over, and has the advantages of compact structure and small volume.
Description
Technical field
The utility model belongs to high-voltage electrical apparatus switching technique field, is specifically related to a kind of chamber type automatic duplicate supply converting switch.
Background technology
At present, in order to improve the reliability of power supply, a large amount of dual power supply circuits (two supply line generally is a circuit on power system, and from reserve line) that adopt in the electric power system are when a line power breaks down, by another line powering.Need by control device, indoor will the employing is no less than two high-tension switch cabinets for this reason, and the open air is no less than high-voltage switch gear on two important actors, could realize selecting the requirement of supply line.This control mode has not only increased user's equipment and operating cost, but also the accident of power supply hidden danger that lies dormant.High-voltage switch gear on two and the above high-tension switch cabinet/post is difficult to realize the mechanical chain between the high-voltage switch gear on high-tension switch cabinet/post.It is generally acknowledged that the electrical interlocks that control device is only arranged is insecure,, will lead to major accident in case duplicate supply feed simultaneously all might appear in control device fault or operations staff's misoperation.
Chinese patent application 200610154471.3 discloses a kind of outdoor high voltage double power source vacuum breaker, this kind vacuum circuit-breaker installs the high-voltage dual power conversion equipment that a chain double-throw disconnecting switch is formed additional on vacuum circuit-breaker, though this kind mode has realized high-voltage dual power and has had electrical interlocks and mechanical chain when automaticallying switch, reduced the two-way high pressure possibility of feed simultaneously, it is present more satisfactory high-voltage dual power switching device shifter, but also there is drawback, the isolating switch of its double-throw is directly exposed in the external environment, along with number of times that uses and the increase of time, the continuous oxidation of contact surface meeting, cause contact resistance to increase conductive capability and reduce, contact heating easily such as burns out at shortcoming.
The utility model content
The purpose of this utility model provides a kind of twin shaft interlock carrying out duplicate supply switching, compact conformation, less chamber type automatic duplicate supply converting switch of volume of utilizing.
The technical scheme that realizes the utility model purpose is: a kind of chamber type automatic duplicate supply converting switch, comprise casing, and be arranged on three main power source binding posts on the casing, three stand-by power supply binding posts, three load wiring posts and power supply switching mechanism; Described power supply switching mechanism comprises a main main shaft and the auxiliary switching shaft of switching, the described main main shaft that switches is provided with three main switching contact knifes that are used for main power source binding post switching, described auxiliary switching shaft is provided with three auxiliary switching contact knifes that are used for stand-by power supply binding post switching, and described main main shaft and the described auxiliary switching shaft of switching is by chain interdynamic mechanism interlock.
In the technique scheme, be filled with inert gas in the described casing.
In the technique scheme, described chain interdynamic mechanism comprises three connecting rods, the stiff end of its first connecting rod is fixedlyed connected with the main main shaft that switches, the end that the other end also promptly rotates end and second connecting rod is rotationally connected, the rotation end of the other end of described second connecting rod and third connecting rod is rotationally connected, and the other end of described third connecting rod also is that stiff end is fixedlyed connected with auxiliary switching shaft.
In the technique scheme, the stiff end branch of the stiff end of described first connecting rod and third connecting rod occupy the both sides of second connecting rod; Perhaps the stiff end of the stiff end of described first connecting rod and third connecting rod is positioned at the same side of second connecting rod.
In the technique scheme, described each main power source binding post is arranged on the left-hand end of casing, and described each stand-by power supply binding post is arranged on the right-hand end of casing; When the described main top that main shaft is arranged on the main power source binding post of switching, when described auxiliary switching shaft was arranged on the below of stand-by power supply binding post, the stiff end branch of the stiff end of described first connecting rod and third connecting rod occupy the both sides of second connecting rod; When the described main below that main shaft is arranged on the main power source binding post of switching, when described auxiliary switching shaft also is arranged on the below of stand-by power supply binding post; The stiff end of described first connecting rod and the stiff end of third connecting rod are positioned at the same side of second connecting rod.
In the technique scheme, this change over switch also comprises a three-phase vacuum breaker device; Described three-phase vacuum breaker device comprises three vacuum interrupters, three moving contacts, three fixed contacts and corresponding actuating mechanisms; Each moving contact in the described three-phase vacuum breaker device is electrically connected with a main switching contact knife and a corresponding auxiliary switching contact knife in the power supply switching mechanism, and described fixed contact is electrically connected with the load wiring post; Described operating mechanism is included as the driving main shaft and the drive link that is used to be connected driving main shaft and moving contact that moving contact provides power.
In the technique scheme, the operating mechanism of described three-phase vacuum breaker device is arranged in the casing; Described each fixed contact is provided with insulated terminal outward and directly as the load wiring post.
In the technique scheme, described each main power source binding post is provided with the switching tool rest, and described each stand-by power supply binding post also is provided with the switching tool rest; The switching tool rest of described each main power source binding post, the switching tool rest of each stand-by power supply binding post, each main switching contact knife and each auxiliary switching contact knife all are arranged in the casing.
In the technique scheme, described each main switching contact knife and auxiliary switching contact knife are the yi word pattern contact knifes.
In the technique scheme, the described main main shaft that switches rotates by the auxiliary switching shaft of chain interdynamic mechanism drive.
The utlity model has positive effect:
(1) in the utility model, described power supply switching mechanism comprises a main main shaft and the auxiliary switching shaft of switching, the described main main shaft that switches is provided with three main switching contact knifes that are used for main power source binding post switching, described auxiliary switching shaft is provided with three auxiliary switching contact knifes that are used for stand-by power supply binding post switching, described main switching main shaft and described auxiliary switching shaft are by chain interdynamic mechanism interlock, the utility model utilizes twin shaft interlock and carries out duplicate supply and switches, and has compact conformation, less advantage takes up room.
(2) in the utility model, described each main power source binding post is provided with the switching tool rest, and described each stand-by power supply binding post also is provided with the switching tool rest; The switching tool rest of described each main power source binding post, the switching tool rest of each stand-by power supply binding post, each main switching contact knife and each auxiliary switching contact knife all are arranged in the casing; Each switching tool rest and power supply switching mechanism no longer are exposed in the air, no longer are subjected to boisterous influence, thereby avoid the power supply switching mechanism to be exposed to easy the to be oxidized potential safety hazard of effectively eliminating in the air because of power supply switching mechanism and switching tool rest of bringing.
(3) in the utility model, can be filled with indifferent gas in the described casing, sulfur hexafluoride gas for example, being used to increases whole insulation property and arc extinction performance, further switching mechanism and switching tool rest is protected, to prolong its useful life as much as possible.
(4) in the utility model, also comprise a three-phase vacuum breaker device, can carry out overcurrent, overvoltage protection, especially can disconnect the big electric current that short circuit causes, play the better protect effect.
(5) in the utility model, can also be arranged in the casing operating mechanism of described three-phase vacuum breaker device bag; This structure can better protect be arranged on each interior parts of casing, prolongs its electric life and useful life as far as possible.
Description of drawings
Fig. 1 is the structural representation of first kind of structure of the utility model;
Fig. 2 is the structural representation of second kind of structure of the utility model;
Fig. 3 is the structural representation of the third structure of the utility model.
Reference numeral is: casing 1, main power source binding post 2, switching tool rest 21, stand-by power supply binding post 3, switching tool rest 31, power supply switching mechanism 4, the main main shaft 41 that switches, main switching contact knife 411, auxiliary switching shaft 42, auxiliary switching contact knife 421, switching contact knife 411, load wiring post 5, three-phase vacuum breaker device 6, vacuum interrupter 61, moving contact 62, operating mechanism 64, driving main shaft 641, drive link 642, chain interdynamic mechanism 7, first connecting rod 71, stiff end 711, rotate end 712, second connecting rod 72, third connecting rod 73, rotate end 731, stiff end 732, voltage transformer 8 is flexible coupling 9.
Embodiment
(embodiment 1)
Fig. 1 is the structural representation of first kind of structure of the utility model, has shown first kind of embodiment of the present utility model.
Present embodiment is a kind of chamber type automatic duplicate supply converting switch, comprises casing 1, is arranged on three main power source binding posts 2 on the casing 1, three stand-by power supply binding posts 3, three load wiring posts 5 and power supply switching mechanisms 4; Described power supply switching mechanism 4 comprises a main main shaft 41 and the auxiliary switching shaft 42 of switching, the described main main shaft 41 that switches is provided with three main switching contact knifes 411 that are used for main power source binding post 2 switchings, described auxiliary switching shaft 42 is provided with three auxiliary switching contact knifes 421 that are used for stand-by power supply binding post 3 switchings, and described main main shaft 41 and the described auxiliary switching shaft 42 of switching is by chain interdynamic mechanism 7 interlocks.Described each main switching contact knife 411 and auxiliary switching contact knife 421 are yi word pattern contact knifes.
Described each main power source binding post 2 is provided with switching tool rest 21, and described each stand-by power supply binding post 3 also is provided with switching tool rest 31; The switching tool rest 21 of described each main power source binding post 2, the switching tool rest 31 of each stand-by power supply binding post 3, each main switching contact knife 411 and each auxiliary switching contact knife 421 all are arranged in the casing 1.
Described chain interdynamic mechanism 7 comprises three connecting rods, the stiff end 711 of its first connecting rod 71 is fixedlyed connected with the main main shaft 41 that switches, the end that the other end also promptly rotates end 712 and second connecting rod 72 is rotationally connected, the rotation end 731 of the other end of described second connecting rod 72 and third connecting rod 73 is rotationally connected, and the other end of described third connecting rod 73 also is that stiff end 732 is fixedlyed connected with auxiliary switching shaft 42.
Described each main power source binding post 2 is arranged on the left-hand end of casing 1, and described each stand-by power supply binding post 3 is arranged on the right-hand end of casing 1; The described main top that main shaft 41 is arranged on main power source binding post 2 of switching, described auxiliary switching shaft 42 is arranged on the below of stand-by power supply binding post 3, and the stiff end 711 of described first connecting rod 71 and the stiff end of third connecting rod 73 occupy the both sides of second connecting rod 72 in 732 minutes; To guarantee that the described main main shaft 41 that switches rotates by the auxiliary switching shaft 42 of chain interdynamic mechanism 7 drives, realizes the switching of duplicate supply.
Be filled with the sulphur hexafluoride indifferent gas in the described casing.
Present embodiment has the following advantages:
(1) in the present embodiment, described power supply switching mechanism comprises a main main shaft and the auxiliary switching shaft of switching, the described main main shaft that switches is provided with three main switching contact knifes that are used for main power source binding post switching, described auxiliary switching shaft is provided with three auxiliary switching contact knifes that are used for stand-by power supply binding post switching, described main switching main shaft and described auxiliary switching shaft are by chain interdynamic mechanism interlock, present embodiment utilizes twin shaft interlock and carries out duplicate supply and switches, and has compact conformation, less advantage takes up room.
(2) in the present embodiment, described each main power source binding post is provided with the switching tool rest, and described each stand-by power supply binding post also is provided with the switching tool rest; The switching tool rest of described each main power source binding post, the switching tool rest of each stand-by power supply binding post, each main switching contact knife and each auxiliary switching contact knife all are arranged in the casing; Each switching tool rest and power supply switching mechanism no longer are exposed in the air, no longer are subjected to boisterous influence, thereby avoid the power supply switching mechanism to be exposed to easy the to be oxidized potential safety hazard of effectively eliminating in the air because of power supply switching mechanism and switching tool rest of bringing.
(4) in the present embodiment, can be filled with the indifferent gas sulphur hexafluoride in described casing, being used to increases whole insulation property and arc extinction performance, further switching mechanism and switching tool rest is protected, to prolong its useful life as much as possible.
(embodiment 2)
Fig. 2 is the structural representation of second kind of structure of the utility model, has shown second kind of embodiment of the present utility model.
Present embodiment is substantially the same manner as Example 1, and difference is: this change over switch also comprises a three-phase vacuum breaker device 6; Described three-phase vacuum breaker device 6 comprises three vacuum interrupters 61, three moving contacts 62, three fixed contacts, voltage transformer 9 and corresponding actuating mechanisms 64; A main switching contact knife 411 in each moving contact 62 in the described three-phase vacuum breaker device 6 and the power supply switching mechanism 4 and a corresponding auxiliary switching contact knife 421 adopt to be flexible coupling and 9 are electrically connected, and described fixed contact is electrically connected with load wiring post 5; Described operating mechanism 64 is included as the driving main shaft 641 and the drive link 642 that is used to be connected driving main shaft 641 and moving contact 62 that moving contact 62 provides power.The operating mechanism 64 of described three-phase vacuum breaker device 6 is arranged in the casing 1; Described each fixed contact is provided with insulated terminal outward and directly as load wiring post 5.
Present embodiment has the following advantages:
(1) in the present embodiment, also comprises a three-phase vacuum breaker device, can carry out overcurrent, overvoltage protection, especially can disconnect the big electric current that short circuit causes, play the better protect effect.
(2) in the present embodiment, can also be arranged in the casing operating mechanism of described three-phase vacuum breaker device bag; This structure can better protect be arranged on each interior parts of casing, prolongs its electric life and useful life as far as possible.
(embodiment 3)
Fig. 3 is the structural representation of the third structure of the utility model, has shown the third embodiment of the present utility model.
Present embodiment is substantially the same manner as Example 2, and difference is: the described main below that main shaft 41 is arranged on main power source binding post 2 of switching, and described auxiliary switching shaft 42 also is arranged on the below of stand-by power supply binding post 3; The stiff end 711 of described first connecting rod 71 and the stiff end 732 of third connecting rod 73 are positioned at the same side of second connecting rod 72.
Present embodiment has compact conformation, less advantage takes up room.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.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 spirit of the present utility model extended out and still are among the protection range of the present utility model.
Claims (10)
1, a kind of chamber type automatic duplicate supply converting switch comprises casing (1), is arranged on three main power source binding posts (2), three stand-by power supply binding posts (3), three load wiring posts (5) and power supply switching mechanism (4) on the casing (1); It is characterized in that: described power supply switching mechanism (4) comprises a main main shaft (41) and an auxiliary switching shaft (42) of switching, the described main main shaft (41) that switches is provided with three main switching contact knifes (411) that are used for main power source binding post (2) switching, described auxiliary switching shaft (42) is provided with three auxiliary switching contact knifes (421) that are used for stand-by power supply binding post (3) switching, describedly mainly switches main shaft (41) and described auxiliary switching shaft (42) links by chain interdynamic mechanism (7).
2, chamber type automatic duplicate supply converting switch according to claim 1 is characterized in that: described casing is filled with inert gas in (1).
3, chamber type automatic duplicate supply converting switch according to claim 1, it is characterized in that: described chain interdynamic mechanism (7) comprises three connecting rods, the stiff end (711) of its first connecting rod (71) is fixedlyed connected with the main main shaft (41) that switches, the end that the other end also promptly rotates end (712) and second connecting rod (72) is rotationally connected, the rotation end (731) of the other end of described second connecting rod (72) and third connecting rod (73) is rotationally connected, and the other end of described third connecting rod (73) also is that stiff end (732) is fixedlyed connected with auxiliary switching shaft (42).
4, chamber type automatic duplicate supply converting switch according to claim 3 is characterized in that: the stiff end (711) of described first connecting rod (71) and the stiff end (732) of third connecting rod (73) divide the both sides that occupy second connecting rod (72); The stiff end (711) of perhaps described first connecting rod (71) and the stiff end (732) of third connecting rod (73) are positioned at the same side of second connecting rod (72).
5, chamber type automatic duplicate supply converting switch according to claim 3 is characterized in that: described each main power source binding post (2) is arranged on the left-hand end of casing (1), and described each stand-by power supply binding post (3) is arranged on the right-hand end of casing (1);
When the described main top that main shaft (41) is arranged on main power source binding post (2) of switching, when described auxiliary switching shaft (42) was arranged on the below of stand-by power supply binding post (3), the stiff end (711) of described first connecting rod (71) and the stiff end (732) of third connecting rod (73) divided the both sides that occupy second connecting rod (72);
When the described main below that main shaft (41) is arranged on main power source binding post (2) of switching, when described auxiliary switching shaft (42) also is arranged on the below of stand-by power supply binding post (3); The stiff end (711) of described first connecting rod (71) and the stiff end (732) of third connecting rod (73) are positioned at the same side of second connecting rod (72).
6, chamber type automatic duplicate supply converting switch according to claim 1 is characterized in that: this change over switch also comprises a three-phase vacuum breaker device (6); Described three-phase vacuum breaker device (6) comprises three vacuum interrupters (61), three moving contacts (62), three fixed contacts and corresponding actuating mechanisms (64); Each moving contact (62) in the described three-phase vacuum breaker device (6) is electrically connected with a main switching contact knife (411) and a corresponding auxiliary switching contact knife (421) in the power supply switching mechanism (4), and described fixed contact is electrically connected with load wiring post (5); Described operating mechanism (64) is included as the driving main shaft (641) and the drive link (642) that is used to be connected driving main shaft (641) and moving contact (62) that moving contact (62) provides power.
7, chamber type automatic duplicate supply converting switch according to claim 6 is characterized in that: the operating mechanism (64) of described three-phase vacuum breaker device (6) is arranged in the casing (1); Described each fixed contact is provided with insulated terminal outward and directly as load wiring post (5).
8, chamber type automatic duplicate supply converting switch according to claim 1 is characterized in that: described each main power source binding post (2) is provided with switching tool rest (21), and described each stand-by power supply binding post (3) also is provided with switching tool rest (31); The switching tool rest (21) of described each main power source binding post (2), the switching tool rest (31) of each stand-by power supply binding post (3), each main switching contact knife (411) and each auxiliary switching contact knife (421) all are arranged in the casing (1).
9, chamber type automatic duplicate supply converting switch according to claim 1 is characterized in that: described each main switching contact knife (411) and auxiliary switching contact knife (421) are the yi word pattern contact knifes.
10, chamber type automatic duplicate supply converting switch according to claim 1 is characterized in that: the described main main shaft (41) that switches rotates by the auxiliary switching shaft (42) of chain interdynamic mechanism (7) drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201305204U CN201229880Y (en) | 2008-06-26 | 2008-06-26 | Chamber type automatic duplicate supply converting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201305204U CN201229880Y (en) | 2008-06-26 | 2008-06-26 | Chamber type automatic duplicate supply converting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229880Y true CN201229880Y (en) | 2009-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201305204U Expired - Fee Related CN201229880Y (en) | 2008-06-26 | 2008-06-26 | Chamber type automatic duplicate supply converting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229880Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146717A (en) * | 2017-07-13 | 2017-09-08 | 成都鑫富达电气制造有限公司 | Multistage many power transfer devices |
-
2008
- 2008-06-26 CN CNU2008201305204U patent/CN201229880Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146717A (en) * | 2017-07-13 | 2017-09-08 | 成都鑫富达电气制造有限公司 | Multistage many power transfer devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20110626 |