CN105742087A - High-current isolation switch - Google Patents
High-current isolation switch Download PDFInfo
- Publication number
- CN105742087A CN105742087A CN201610268314.9A CN201610268314A CN105742087A CN 105742087 A CN105742087 A CN 105742087A CN 201610268314 A CN201610268314 A CN 201610268314A CN 105742087 A CN105742087 A CN 105742087A
- Authority
- CN
- China
- Prior art keywords
- contact
- switch
- head assembly
- knife head
- heavy current
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a high-current isolation switch. The high-current isolation switch comprises a switch frame, a moving contact tool bit assembly and a driving apparatus, wherein the switch frame is provided with a connecting wire assembly; the connecting wire assembly comprises a first contact, a second contact and a grounding contact fixed on the switch frame separately; the moving contact tool bit assembly is rotationally connected to the second contact; the driving apparatus is used for driving the moving contact tool bit assembly to rotate; the driving apparatus comprises a connecting part rotationally connected with the moving contact tool bit assembly, a rotational part rotationally connected with the connecting part, and a rotary shaft used for driving the rotational part to rotate; the moving contact tool bit assembly, the connecting part, the rotational part and the switch frame form a four-bar mechanism; and the moving contact tool bit assembly is electrically connected with the second contact, and drives the rotational part to rotate through the rotary shaft so as to enable the moving contact tool bit assembly to be in contact with or separated from the first contact in order to realize the switch-on and switch off of the isolation switch. Due to the mechanical transmission structure, the switch is stable in switch-on and switch-off, and high in reliability; meanwhile, the appearance dimension of the switch can be reduced; and in addition, the high-current isolation switch is reasonable in design, high in practicability and can be widely popularized and applied to the markets.
Description
Technical field
The present invention relates to a kind of switch, particularly relate to a kind of isolation switch.
Background technology
In prior art, high-voltage isolating switch is mostly air-insulated type, but its volume is big, and profile is heavy.And the electric pressure of existing inflatable isolation switch is low, it is difficult to meet the demand of high voltage, large-capacity user.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, it is an object of the invention to provide a kind of heavy current disconnecting switches.
The technical scheme is that a kind of heavy current disconnecting switches, including:
Switch frame, it is provided with link components, and described link components includes being individually fixed in the first contact of switch frame, the second contact, grounding contact；
It is rotationally connected with the movable touch knife head assembly of the second contact；
For the driving device driving movable touch knife head assembly to rotate, it includes the connector being rotationally connected with movable touch knife head assembly, the tumbler being rotationally connected with connector, and the rotating shaft for driving tumbler to rotate；
Wherein, described movable touch knife head assembly and the second contact are electrically connected；Described axis of rotation is connected to switch frame；Described movable touch knife head assembly, connector, tumbler, switch frame form quadric chain, and described tumbler drives connector, movable touch knife head assembly to rotate so that described movable touch knife head assembly and the first contact or separate.
Its further technical scheme is: described switch frame is provided with several first contacts, the second contact, grounding contact；Corresponding second contact of one the first contact and a grounding contact；Described heavy current disconnecting switches also includes the some insulated columns for fixing the first contact, the second contact, grounding contact；Described insulated column is fixed on switch frame.
Its further technical scheme is: described movable touch knife head assembly includes two contacts and two elastic locking assemblies；Described contact is provided with the turning end being rotationally connected with the second contact, for the contact jaw with the first contact；Described second contact is provided with link；Described link be respectively provided on two sides with inner concave arc surface, and run through the rotation hole of inner concave arc surface；Described turning end is provided with the lower locking hole corresponding with rotation hole, the outer convex globoidal matched with inner concave arc surface；Described contact jaw is provided with locking hole；Said two elastic locking assembly is each passed through two contacts described in locking hole and the locking of lower locking hole.
Its further technical scheme is: described contact jaw is additionally provided with the clamping boss for clamping the first contact；Described clamping boss is provided with transition face；Described upper locking hole is between clamping boss and lower locking hole.
Its further technical scheme is: described elastic locking assembly includes screw rod, the nut matched with screw rod, is located between screw rod and nut and is positioned at the some elastic disc spring outside two contacts；When described screw rod, nut check, disc spring pushes up the outside of two contacts of pressure respectively；Described movable touch knife head assembly also includes the sleeve being sheathed on screw rod；Described sleeve is between two contacts of contact jaw.
Its further technical scheme is: described movable touch knife head assembly also includes being fixed on the insulating fixing piece of contact；Described insulating fixing piece and connector are rotationally connected.
Its further technical scheme is: described rotating shaft is provided with square shaft section and circular shaft section；Described tumbler is provided with the square hole matched with square shaft section；Described rotating shaft drives tumbler to rotate by square shaft section, and its material is ambroin.
Its further technical scheme is: described heavy current disconnecting switches also includes the power set rotated for drive shaft, and is fixed on the sealing member of switch frame；Described power set include fixing the fixed mount being connected with switch frame, the powered axle assemblies being connected with rotating shaft transmission；Described sealing member is provided with for the shaft hole through rotating shaft, and movable sealing between the two coordinates；Described fixed mount is provided with the installing hole for being rotationally connected powered axle assemblies.
Its further technical scheme is: described powered axle assemblies includes the output shaft coupled with rotating shaft transmission, with the line shaft of output shaft driving coupling；Described line shaft is provided with rotation section away from one end of output shaft.
Its further technical scheme is: described power set also include pretension assembly；Described fixed mount is provided around the arc chute of installing hole；Described powered axle assemblies is provided with connecting portion；Described pretension assembly includes being slidably connected the slide block in arc chute, is rotationally connected with the revolving part of fixed mount, is located at the spring between slide block and revolving part；Described slide block and connecting portion are rotationally connected；When described powered axle assemblies rotates, described spring is in compressive state all the time.
The present invention compared with prior art have the technical effect that a kind of heavy current disconnecting switches, quadric chain is formed by movable touch knife head assembly, connector, tumbler, switch frame, movable touch knife head assembly and the second contact are electrically connected, and drive tumbler to rotate by rotating shaft, so that movable touch knife head assembly and the first contact or separate, thus realize the switching of isolation switch.Mechanical drive mechanism so that the opening and closing lock of switch is more stable, highly reliable, also reduces the overall dimensions of switch simultaneously.
Further, being matched by outer convex globoidal, inner concave arc surface between contact and the second contact, when contact rotates, the comparison of the contact surface laminating of both is tight, improves the current capacity of switch.
Further, the contact jaw of contact is provided with clamping boss, and clamping boss is provided with transition face, it is simple to the first contact enters between two contacts, simultaneously by clamping boss clamping the first contact so that both close contacts.
Further, by screw rod, nut, two contacts of disc spring elastic locking, owing to contact top is pressed by disc spring all the time, it is ensured that closely cooperate between contact and the first contact, the second contact, thus ensure that the reliability of switch opening and closing lock.
Further, rotating shaft, fixture are all insulating parts, thus avoiding switch frame because of charged.
Further, power set are additionally provided with pretension assembly, are pressed by the top of pretension assembly so that movable touch knife head assembly is in contact the first contact and during away from the first contact position, powered axle assemblies is in all the time by top pressure condition, decreases the mistake by external force and opens a sluice gate and close lock event.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the installation diagram of a kind of heavy current disconnecting switches specific embodiment of the present invention.
Fig. 2 is the partial view that Fig. 1 embodiment breaker in middle is in the state of opening a sluice gate.
Fig. 3 is that Fig. 1 embodiment breaker in middle is in the partial view closing lock state.
Fig. 4 is the explosive view of movable touch knife head assembly in Fig. 1 embodiment.
Fig. 5 is the assembled view of movable touch knife head assembly and the first contact, the second contact in Fig. 1 embodiment.
Fig. 6 is the explosive view of Fig. 1 embodiment medium power device.
Accompanying drawing labelling
10 isolation switch 1 switch frames
11 first contact 12 second contacts
121 link 121A inner concave arc surfaces
121B rotation hole 13 grounding contact
14 insulated columns 15 connect row
2 movable touch knife head assembly 21 contacts
Locking hole under 211 turning end 211A
Outer convex globoidal 212 contact jaw of 211B
212A upper locking hole 212B clamping boss
221 screw rod 222 nuts
223 disc spring 22 latch assemblies
23 sleeve 24 insulating fixing piece
3 driving device 31 connectors
32 tumbler 33 rotating shafts
331 square shaft section 332 circular shaft sections
4 power set 41 fixed mounts
411 arc chute 42 powered axle assemblies
421 output shaft 422 line shafts
422A rotation section 423 connecting portion
43 pretension assembly 431 slide blocks
432 revolving part 433 springs
5 sealing members
Detailed description of the invention
In order to more fully understand the technology contents of the present invention, below in conjunction with schematic diagram technical scheme it is further described and illustrates, but being not limited to this.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of heavy current disconnecting switches 10, including: switch frame 1, movable touch knife head assembly 2, for the driving device 3 driving movable touch knife head assembly 2 to rotate, power set 4, and be fixed on the sealing member 5 of switch frame 1.
Switch frame 1 is provided with link components, link components includes 3 first contact the 11, second contacts 12, grounding contacts 13 being individually fixed in switch frame 1, wherein, first contact 11 is fixed on the top of switch frame 1, grounding contact 13 is fixed on the bottom of switch frame 1, second contact 12 is located between the first contact 11 and grounding contact 13, adopts connection row 15 connection of insulation, corresponding second contact 12 of the first contact 11 and a grounding contact 13 between grounding contact 13 and the second contact 12.Be galvanically isolated some insulated columns 14 that switch 10 also includes for fixing first contact the 11, second contact 12, grounding contact 13, insulated column 14 is fixed on switch frame 1, it is to avoid switch frame 1 is charged and security incident occurs.
Driving device 3 includes the connector 31 being rotationally connected with movable touch knife head assembly 2, the tumbler 32 being rotationally connected with connector 31, and the rotating shaft 33 for driving tumbler 32 to rotate.
Movable touch knife head assembly 2 is rotationally connected with the second contact 12, and is electrically connected between the two.Rotating shaft 33 is rotationally connected with switch frame 1, and it is provided with square shaft section 331 and circular shaft section 332.
Tumbler 32 is provided with the square hole matched with square shaft section 331, and rotating shaft 33 drives tumbler 32 to rotate by square shaft section 331, and the material of rotating shaft 33 is ambroin.
Movable touch knife head assembly 2 also includes the insulating fixing piece 24 being fixed on contact 21, and insulating fixing piece 24 and connector 31 are rotationally connected.Movable touch knife head assembly 2, connector 31, tumbler 32, switch frame 1 form quadric chain.Tumbler 32 drives connector 31, movable touch knife head assembly 2 to rotate, tactile cutter head assembly and the first contact 11 is made to contact or separate, so that the first contact 11 and the second contact 12 are electrically connected, realization is opened a sluice gate or closes lock, wherein, movable touch knife head assembly 2, tumbler 32 are equivalent to rocking bar, and tumbler 32 is equivalent to connecting rod.
As shown in Figure 4, Figure 5, movable touch knife head assembly 2 includes two contacts 21 and two elastic locking assemblies 22.Contact 21 sets the turning end 211 being rotationally connected with the second contact 12, for the contact jaw 212 contacted with the first contact 11.
Second contact 12 is provided with link 121, link 121 be respectively provided on two sides with inner concave arc surface 121A, and run through the rotation hole 121B of inner concave arc surface 121A.
Turning end 211 is provided with the lower locking hole 211A corresponding with rotation hole 121B, the outer convex globoidal 211B matched with inner concave arc surface 121A.
Contact jaw 212 is provided with locking hole 212A, and for the clamping boss 212B of clamping the first contact 11, upper locking hole 212A between clamping boss 212B and lower locking hole 211A, clamping boss 212B is provided with transition face.Being matched by outer convex globoidal 211B, inner concave arc surface 121A between contact 21 with the second contact 12, when contact 21 rotates, the comparison of the contact surface laminating of both is tight, improves the current capacity of switch.
Elastic locking assembly 22 includes screw rod 221, the nut 222 matched with screw rod 221, is located between screw rod 221 and nut 222 and is positioned at the some elastic disc spring 223 outside two contacts 21.When screw rod 221, nut 222 are locked, disc spring 223 pushes up the outside of two contacts 21 of pressure respectively.Movable touch knife head assembly 2 also includes the sleeve 23 being sheathed on screw rod 221, and sleeve 23 is between two contacts 21 of contact jaw 212, and two elastic locking assemblies 22 are each passed through two contacts 21 that locking hole 212A and lower locking hole 211A locking is described.During movable touch knife head assembly 2 clamping the first contact 11, first contact 11 slides between two clamping boss 212B of two contacts 21 by transition face, by screw rod 221, nut 222, two contacts 21 of disc spring 223 elastic locking, disc spring 223 is all the time to contact 21 top pressure, and by the clamping effect of clamping boss 212B, ensure that and closely cooperate between contact 21 and first contact the 11, second contact 12, improve current capacity and ensure that the reliability of opening and closing lock.
As shown in Figure 6, power set 4 rotate for drive shaft 33, and it includes the fixed mount 41 that be connected fixing with switch frame 1, the powered axle assemblies 42 being in transmission connection with rotating shaft 33, and pretension assembly 43.Sealing member 5 is provided with for the shaft hole (not indicating in figure) through rotating shaft 33, and movable sealing between the two coordinates.
Fixed mount 41 is provided with the installing hole (not indicating in figure) for being rotationally connected powered axle assemblies 42, and powered axle assemblies 42 includes and the output shaft 421 of rotating shaft 33 driving coupling, with the line shaft 422 of output shaft 421 driving coupling.Line shaft 422 is provided with rotation section 422A away from one end of output shaft 421, and the cross section of rotation section 422A is regular hexagon, it is possible to sheathed spanner rotates so that power set 4 drive shaft 33 rotates.
Fixed mount 41 is additionally provided with the arc chute 411 being fitted around hole, and powered axle assemblies 42 is additionally provided with connecting portion 423.Pretension assembly 43 includes being slidably connected the slide block 431 in arc chute 411, is rotationally connected with the revolving part 432 of fixed mount 41, is located at the spring 433 between slide block 431 and revolving part 432.Slide block 431 and connecting portion 423 are rotationally connected, and when powered axle assemblies 42 rotates, spring 433 is in compressive state all the time.Being pressed by the top of pretension assembly 43 so that movable touch knife head assembly 2 is in contact the first contact 11 and during away from the first contact 11 position, powered axle assemblies 42 is in all the time by top pressure condition, decreases the mistake by external force and opens a sluice gate and close lock event.
The above-mentioned technology contents only further illustrating the present invention with embodiment, in order to reader is easier to understand, but do not represent embodiments of the present invention and be only limitted to this, any technology done according to the present invention extends or recreation, all by the protection of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. a heavy current disconnecting switches, it is characterised in that including:
Switch frame, it is provided with link components, and described link components includes being individually fixed in the first contact of switch frame, the second contact, grounding contact；
It is rotationally connected with the movable touch knife head assembly of the second contact；
For the driving device driving movable touch knife head assembly to rotate, it includes the connector being rotationally connected with movable touch knife head assembly, the tumbler being rotationally connected with connector, and the rotating shaft for driving tumbler to rotate；
Wherein, described movable touch knife head assembly and the second contact are electrically connected；Described axis of rotation is connected to switch frame；Described movable touch knife head assembly, connector, tumbler, switch frame form quadric chain, and described tumbler drives connector, movable touch knife head assembly to rotate so that described movable touch knife head assembly and the first contact or separate.
2. heavy current disconnecting switches according to claim 1, it is characterised in that described switch frame is provided with several first contacts, the second contact, grounding contact；Corresponding second contact of one the first contact and a grounding contact；Described heavy current disconnecting switches also includes the some insulated columns for fixing the first contact, the second contact, grounding contact；Described insulated column is fixed on switch frame.
3. heavy current disconnecting switches according to claim 1, it is characterised in that described movable touch knife head assembly includes two contacts and two elastic locking assemblies；Described contact is provided with the turning end being rotationally connected with the second contact, for the contact jaw with the first contact；Described second contact is provided with link；Described link be respectively provided on two sides with inner concave arc surface, and run through the rotation hole of inner concave arc surface；Described turning end is provided with the lower locking hole corresponding with rotation hole, the outer convex globoidal matched with inner concave arc surface；Described contact jaw is provided with locking hole；Said two elastic locking assembly is each passed through two contacts described in locking hole and the locking of lower locking hole.
4. heavy current disconnecting switches according to claim 3, it is characterised in that described contact jaw is additionally provided with the clamping boss for clamping the first contact；Described clamping boss is provided with transition face；Described upper locking hole is between clamping boss and lower locking hole.
5. heavy current disconnecting switches according to claim 3, it is characterised in that described elastic locking assembly includes screw rod, the nut matched with screw rod, is located between screw rod and nut and is positioned at the some elastic disc spring outside two contacts；When described screw rod, nut check, disc spring pushes up the outside of two contacts of pressure respectively；Described movable touch knife head assembly also includes the sleeve being sheathed on screw rod；Described sleeve is between two contacts of contact jaw.
6. heavy current disconnecting switches according to claim 3, it is characterised in that described movable touch knife head assembly also includes the insulating fixing piece being fixed on contact；Described insulating fixing piece and connector are rotationally connected.
7. heavy current disconnecting switches according to claim 1, it is characterised in that described rotating shaft is provided with square shaft section and circular shaft section；Described tumbler is provided with the square hole matched with square shaft section；Described rotating shaft drives tumbler to rotate by square shaft section, and its material is ambroin.
8. heavy current disconnecting switches according to claim 1, it is characterised in that described heavy current disconnecting switches also includes the power set rotated for drive shaft, and is fixed on the sealing member of switch frame；Described power set include fixing the fixed mount being connected with switch frame, the powered axle assemblies being connected with rotating shaft transmission；Described sealing member is provided with for the shaft hole through rotating shaft, and movable sealing between the two coordinates；Described fixed mount is provided with the installing hole for being rotationally connected powered axle assemblies.
9. heavy current disconnecting switches according to claim 8, it is characterised in that described powered axle assemblies includes the output shaft coupled with rotating shaft transmission, with the line shaft of output shaft driving coupling；Described line shaft is provided with rotation section away from one end of output shaft.
10. heavy current disconnecting switches according to claim 8, it is characterised in that described power set also include pretension assembly；Described fixed mount is provided around the arc chute of installing hole；Described powered axle assemblies is provided with connecting portion；Described pretension assembly includes being slidably connected the slide block in arc chute, is rotationally connected with the revolving part of fixed mount, is located at the spring between slide block and revolving part；Described slide block and connecting portion are rotationally connected；When described powered axle assemblies rotates, described spring is in compressive state all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268314.9A CN105742087A (en) | 2016-04-26 | 2016-04-26 | High-current isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268314.9A CN105742087A (en) | 2016-04-26 | 2016-04-26 | High-current isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105742087A true CN105742087A (en) | 2016-07-06 |
Family
ID=56285710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610268314.9A Pending CN105742087A (en) | 2016-04-26 | 2016-04-26 | High-current isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105742087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252142A (en) * | 2016-08-11 | 2016-12-21 | 珠海市可利电气有限公司 | Compact air insulation cabinet disconnecting switch structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1117111A1 (en) * | 2000-01-10 | 2001-07-18 | Schneider Electric Industries SA | Actuating mechanism of a contact element of an electrical switch with an articulated parallelogram |
| CN203118802U (en) * | 2013-04-01 | 2013-08-07 | 石家庄科林电气设备有限公司 | Three-position spring operation mechanism |
| CN203882865U (en) * | 2014-04-16 | 2014-10-15 | 泰豪科技(深圳)电力技术有限公司 | High-voltage vacuum circuit breaker and isolating switch thereof |
| CN204088161U (en) * | 2014-07-30 | 2015-01-07 | 保定华森电力设备制造有限公司 | A kind of outdoor fuse type disconnector |
| CN204857552U (en) * | 2015-07-27 | 2015-12-09 | 温州盛川机电制造有限公司 | High voltage isolation earthing switch |
-
2016
- 2016-04-26 CN CN201610268314.9A patent/CN105742087A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1117111A1 (en) * | 2000-01-10 | 2001-07-18 | Schneider Electric Industries SA | Actuating mechanism of a contact element of an electrical switch with an articulated parallelogram |
| CN203118802U (en) * | 2013-04-01 | 2013-08-07 | 石家庄科林电气设备有限公司 | Three-position spring operation mechanism |
| CN203882865U (en) * | 2014-04-16 | 2014-10-15 | 泰豪科技(深圳)电力技术有限公司 | High-voltage vacuum circuit breaker and isolating switch thereof |
| CN204088161U (en) * | 2014-07-30 | 2015-01-07 | 保定华森电力设备制造有限公司 | A kind of outdoor fuse type disconnector |
| CN204857552U (en) * | 2015-07-27 | 2015-12-09 | 温州盛川机电制造有限公司 | High voltage isolation earthing switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252142A (en) * | 2016-08-11 | 2016-12-21 | 珠海市可利电气有限公司 | Compact air insulation cabinet disconnecting switch structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Application publication date: 20160706 |