CN201311868Y - Isolating switch and switch cabinet provided with isolating switch - Google Patents
Isolating switch and switch cabinet provided with isolating switch Download PDFInfo
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- CN201311868Y CN201311868Y CNU2008201807770U CN200820180777U CN201311868Y CN 201311868 Y CN201311868 Y CN 201311868Y CN U2008201807770 U CNU2008201807770 U CN U2008201807770U CN 200820180777 U CN200820180777 U CN 200820180777U CN 201311868 Y CN201311868 Y CN 201311868Y
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- isolating switch
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Abstract
The utility model relates to an isolating switch which comprises a support, a static contact, a moving contact blade assembly and an insulator, wherein the moving contact blade assembly comprises a clamping part, the clamping part is provided with a clamping space, a clamping mechanism, a driving part and a mechanical position sensing mechanism, the mechanical position sensing mechanism comprises a position sensing end and an action triggering end, the position sensing end is matched with the static contact, and the action triggering end is matched with the driving part. Through the mutual matching and connection of the clamping mechanism, the driving part and the mechanical position sensing mechanism, and after the moving contact blade component is moved to the position where the moving contact blade component is closed with the static contact, the functions of first switching in and then locking the contacts and first unlocking and then switching off the contacts can be completed; in the entire switching off and switching in process, the contacts are not abraded, so that the service life is long; the closing pressure of the contacts is large, the flow capacity is strong, and the blade is not easy to heat. Therefore, the potential safety hazard is reduced. Simultaneously, during the entire process, the operation gears for transformation between switching in and locking are clear and can be switched freely. The operation is very convenient and smooth.
Description
Technical field
The utility model relates to a kind of isolating switch that is applied in the power system device.The utility model also relates to the switch cubicle that this isolating switch is installed.
Background technology
Isolating switch plays insulating power supply, changes system operation mode, carries out important function such as grid switching operation in electric power system.
In the specification requirement of isolating switch, the most important is how isolating switch better solves contact wearing and tearing and contact pressure in closure, when disconnecting a problem, how to prolong the useful life of contact.Need also in addition to consider whether the operation of the isolating switch when closure, disconnection is laborsaving, smooth and easy, convenient.
At present, the clamping mode of isolating switch adopts the organization plan of fastening spring substantially.Such isolating switch is indoor guillotine type three-pole isolator.Every phase current-carrying part mainly is made up of contact knife (moving contact) and fixed contact.Fixed contact is mounted on two supporting insulators that are fixed in above the underframe, and an end of contact knife links with a fixed contact by the bolt pivot pin, and the rotation contact knife can divide with other end fixed contact formation and be connected.In the middle of the contact knife porcelain vase pull bar or insulated tension pole are arranged, two ends are provided with fastening spring, keep the pressure of contact knife to fixed contact.Three parallel installation.The pull bar porcelain vase links to each other with main shaft on being installed in underframe, and main shaft links to each other with operating mechanism with connecting rod by connecting lever.The two ends of main shaft are protuberate basic unit all, and operating mechanism can be contained in any side.Contact knife is made up of two flute profile copper sheets, in flute profile copper sheet both sides, contact knife contact position, the magnetic padlock pressing plate is housed also, when short circuit current passes through, increases contact pressure, has improved moving, the thermal stability of isolating switch.
But there is following shortcoming in this isolating switch: finish the clamping of contact knife and contact in the process of closing a floodgate simultaneously, if the contact knife clamping force is very big, finishing on/off switch by hand-power can be very difficult; In order to operate by hand-power, by reducing the clamping force of contact knife, if clamping force is very little, then isolating switch is resisted the electrodynamic ability variation that certainly will descend, and the contact pressure of isolating switch also can reduce simultaneously, can't guarantee the contact reliability of isolating switch, be in operation and have potential safety hazard (it is unreliable to contact, and will cause the temperature rise of contact point to raise, and causes the thermal breakdown of insulation, destroy the insulation of isolating switch, cause insulation fault).
In addition, the contact knife of such retaining spring also exist a problem be contact knife when on/off switch, there are serious wearing and tearing in contact and contact knife, the long-term use causes the contact serious wear, closure is not tight, when having potential safety hazard, also greatly reduces the useful life of product.
The isolating switch of this class formation such as State Intellectual Property Office in the patent No. of Granted publication on the 14th December in 1994 are: 9324633.9, name is called in the utility model patent of " isolating switch with can divide contact ", this patent disclosure the newest structure of isolation switch contact in a kind of high voltage switchgear.This contact is made up of contact base 1, fingertip 6, cylindrical contact 7, spring 5.This structure utilizes the unsteadiness of fastening bolt 3 on on-plane surface that contact base 1 is designed to the cambered surface state with contacting of fingertip 6, and adds an edge of a knife packing ring 2 in spiral shell inspection 3 and 6 of fingertips.Thereby make this structure contact can improve contact reliability, can satisfy contact system purpose easy to adjust again.
And for example State Intellectual Property Office in July in 2008 Granted publication on the 9th the patent No. be: ZL200720139027.4, name are called the utility model patent of " a kind of high-voltage switch gear barrier assembly ", this patent disclosure a kind of high voltage isolation switch contact assembly, belong to the electric equipment current-carrying part.Be provided with the be in tilted layout conductive base of conductive contact surfaces of a bilateral symmetry; Be provided with the spring member with U-shaped plate and built-in a plurality of extension springs, at U-shaped plate both wings, the end of the U-shaped plate both wings of fixedlying connected with conductive base extends in the discount of fingertip with the fingertip flexible fastening in extension spring, and the fingertip location is squeezed on the contact-making surface of conductive base.
The structure of above-mentioned two patent schemes is the scheme that spring clamps, and can cause the heavy wear of fingertip and contact after long-term the use, also can cause elastic force to descend, and contact closure pressure is descended, and closure is not tight.Cause the temperature rise at contact place to be mentioned, spring is aging, brings potential safety hazard for the use of switch cubicle.
The utility model content
In order to overcome above-mentioned the problems of the prior art, the utility model provides a kind of isolating switch.Contact knife and contact locking again and the first release function of separating brake again that realizes closing a floodgate earlier.Contact does not have wearing and tearing, increases the service life.Contact closure is tightr simultaneously, contact closure pressure is big, through-current capability is strong, guarantees the safe handling of isolating switch, reduces potential safety hazard.
In addition, the utility model also provides the switch cubicle that uses this isolating switch.
The main technical schemes that a kind of isolating switch that the utility model provides adopts is: a kind of isolating switch, comprise support, fixed contact, the movable touch knife assembly that matches with fixed contact, described movable touch knife assembly and fixed contact are connected with an insulator respectively, described insulator is installed on the described support, it is characterized in that:
Described movable touch knife assembly comprises clamping part, and described clamping part has the clamping space that matches with described fixed contact;
Described movable touch knife assembly also comprises by the clamp system of the described clamping space size of self action change and drives the driver part that described clamp system moves;
Described movable touch knife assembly comprises that also working as described fixed contact enters the mechanical type position sensing mechanism that described clamping space precalculated position rear drive parts can move, described mechanical type position sensing mechanism comprises position sensing end and action triggers end, and described position sensing end matches with the fixed contact that enters described clamping space precalculated position, the action triggers end matches with described driver part;
Described fixed contact matches with the zone at described clamping space two ends.
A kind of isolating switch that the utility model provides also adopts following attached technical scheme: described fixed contact comprises first fixed contact, second fixed contact, and described clamping part comprises moving contact first clamping plate and moving contact second clamping plate; The corresponding described clamping space that is formed with ccontaining described first fixed contact, second fixed contact is respectively equipped with described clamp system on the body of described moving contact first clamping plate and moving contact second clamping plate between described moving contact first clamping plate and moving contact second clamping plate;
Described clamp system comprises first pressing plate and second pressing plate, and first pressing plate and second pressing plate two ends and clamping plate body separately flexibly connects by bearing pin;
First pressing plate on described moving contact first clamping plate and an end of second pressing plate act on the body of moving contact first clamping plate; First pressing plate on moving contact second clamping plate and an end of second pressing plate act on the body of moving contact second clamping plate;
Driver part comprises a control operating rod that can move radially, matching to merge with described control operating rod with described control operating rod moves radially and first push rod and second push rod that laterally move, described first push rod acts on first pressing plate on moving contact first clamping plate and the other end of second pressing plate, and second push rod acts on first pressing plate and other end of second pressing plate on moving contact second clamping plate;
Described driver part comprises that also one matches with described control operating rod controlling the keeper that described control operating rod moves radially, and described keeper matches with the action triggers end of described mechanical type position sensing mechanism;
Described driver part also comprises a housing, described control operating rod and described housing sliding connection; One end hinge of the lower end of described control operating rod and described first push rod and second push rod connects, and has first groove and second groove that first push rod and second push rod are moved on the described housing; The other end of described first push rod acts on first pressing plate on moving contact first clamping plate and the other end of second pressing plate, and the other end of second push rod acts on first pressing plate on moving contact second clamping plate and the other end of second pressing plate; Described control operating rod is provided with location hole, and a ccontaining alignment pin movable in the described location hole reaches the spring that cooperates with alignment pin, and the location hole that described keeper passes on housing and the operation pull bar is corresponding, and corresponding with the alignment pin in the location hole; Described control operating rod is connected with described insulator;
Described mechanical type position sensing mechanism comprises a rotating kinematic link and the reset components that matches with kinematic link, and an end of described kinematic link is the described action triggers end that matches with keeper on the driver part for described position sensing end, the other end that matches with first fixed contact and/or second fixed contact;
Described kinematic link is connected in the described clamping space by described bearing pin, the zone line of described kinematic link is rotating to be placed on one of them bearing pin, the stiff end of described reset components is resisted against on another bearing pin, reset terminal acts on the kinematic link, and described kinematic link its action triggers end under reset mode is resisted against on another bearing pin;
Described first fixed contact is provided with and the corresponding projection of described position sensing end;
The internal diameter of described clamping space is greater than the thickness of first fixed contact, second fixed contact, and the inner surface of described moving contact first clamping plate and moving contact second clamping plate contacts with the surface of described first fixed contact, second fixed contact;
Described isolating switch is two-phase isolating switch or three-phase isolation switch.
The main technical schemes that the switch cubicle of this isolating switch of installation that the utility model provides adopts is: the isolator operating mechanism that comprises cabinet, is positioned at the circuit breaker of cabinet, the main bus bar that is connected with circuit breaker and isolating switch and is connected with circuit breaker, isolating switch, described isolating switch comprises support, fixed contact, the movable touch knife assembly that matches with fixed contact, described movable touch knife assembly and fixed contact are connected with an insulator respectively, described insulator is installed on the described support, it is characterized in that:
Described movable touch knife assembly comprises the clamping part that matches with described fixed contact, and described clamping part has the clamping space that matches with described fixed contact;
Described movable touch knife assembly also comprises by the clamp system of the described clamping space size of self action change and drives the driver part that described clamp system moves;
Described movable touch knife assembly comprises that also working as described fixed contact enters the mechanical type position sensing mechanism that described clamping space precalculated position rear drive parts can move, described mechanical type position sensing mechanism comprises position sensing end and action triggers end, and described position sensing end matches with the fixed contact that enters described clamping space precalculated position, the action triggers end matches with described driver part;
Described isolator operating mechanism and driver part are connected.
The switch cubicle of this isolating switch of installation that the utility model provides also adopts following attached technical scheme: described isolating switch is divided into isolating switch and following isolating switch, the described isolating switch of going up comprises the disrance sleeve of being located on the described support, be with copper bar in the described disrance sleeve, the described fixed contact of going up isolating switch is connected with the copper bar straight line, and described copper bar and described disrance sleeve are formed with louvre.
The beneficial effect that the isolating switch that adopts the utility model to provide brings is: (1) the utility model cooperatively interacts with mechanical type position sensing mechanism by clamp system, driver part and is connected, after contact knife moves to position with contact closure, by the component triggers mechanical type position sensing mechanism action of being located on the contact, trigger the driver part action by mechanical type position sensing mechanism then and make the clamp system clamp contact.Finish contact locking again and the first release function of separating brake again of closing a floodgate earlier, in the whole divide-shut brake process, contact does not have wearing and tearing, prolongs the useful life of isolating switch greatly.Big, the tight close of pressure after contact closes a floodgate simultaneously, through-current capability is strong, and disconnecting link is difficult for heating.Reduce potential safety hazard, prolonged the useful life of isolating switch.(2) clamp system, driver part and the mechanical type position sensing mechanism action that cooperatively interacts, after making contact enter the clamping space precalculated position is the trigger action clamp contact, before entering the precalculated position, then can not lock by trigger action, it is clear with locking conversion operations gear to close a floodgate in the whole process, and conversion freely.Easy to operate smooth and easy.(3) in the clamp system that the utility model provides, the clamping space that forms between first clamping plate and second clamping plate, its internal diameter is slightly larger than the thickness of fixed contact, when closure, the inner surface of first clamping plate and second clamping plate contacts with contact surface, pasting the surface of contact and sliding, the dust that contact can be shown in the process of sliding is disposed, and plays the effect of self-cleaning.Avoid contact surface contact dust to produce loose contact, surface corrosion or oxidation reaction, further prolong the useful life of contact.
The beneficial effect that the switch that this isolating switch is installed that provides according to the utility model brings is: (1) is because the isolating switch that has adopted the utility model to provide, make switch cubicle more smooth and easy when carrying out operation such as power-off service, coefficient of safety is higher simultaneously, longer service life.(2) the contact knife assembly of going up in the isolating switch is connected with the disrance sleeve straight line, is positioned on same the rectilinear direction, and making current direction is a straight line, has reduced destructive electric power.(3) be with the disrance sleeve of copper bar, be provided with louvre, it can solve the heat dissipation problem that is embedded in the copper bar in the sleeve pipe better, the heat of isolating switch lower end and circuit breaker junction can be passed by this louvre simultaneously, helps hot transmission more.Conventional design just is embedded in copper bar in the epoxy resin of sleeve pipe, is unfavorable for heat radiation.
Description of drawings
The overall structure schematic diagram of the following isolating switch that Fig. 1 provides for the utility model;
Fig. 2 is the structural representation that is connected between mechanical location sensing mechanism among Fig. 1 and the driver part;
Fig. 3 is the structural representation under the switch touching knife assembly gate-dividing state;
The structural representation of the last isolating switch that Fig. 4 provides for the utility model;
Fig. 5 overlooks structure perspective view under the direction for the movable touch knife assembly;
Fig. 6 is the side structure schematic diagram of Fig. 5;
Fig. 7 is the overall structure figure of driver part;
Fig. 8 is the internal structure schematic diagram of driver part;
Fig. 9 is that the parts of driver part split schematic diagram;
Go up the structure chart that the contact of isolating switch is connected with main bus bar copper bar straight line in the switch cubicle that Figure 10 provides for the utility model;
Figure 11 is the structure chart of isolating switch on the three-phase that adopts in the utility model switch cubicle;
Figure 12 is the mechanism map of isolating switch under the three-phase that adopts in the utility model switch cubicle;
Figure 13 is the structure chart that forms louvre in the utility model switch cubicle between wall bushing and the copper bar;
Figure 14 is the side-looking structure chart of Figure 13;
Figure 15 is the Facad structure figure of the utility model switch cubicle;
Figure 16 is the right side structure chart of Figure 15.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description:
Extremely shown in Figure 9 as Fig. 1, a kind of isolating switch that provides for the utility model, comprise support 1, fixed contact, the movable touch knife assembly 3 that matches with fixed contact respectively, movable touch knife assembly 3 and fixed contact are connected with an insulator 4 respectively, insulator 4 is installed on the support 1, movable touch knife assembly 3 comprises clamping part, and clamping part has the clamping space 5 that matches with fixed contact; Movable touch knife assembly 3 also comprises by the clamp system of self action change clamping space 5 size and drives the driver part 6 that clamp system moves; Movable touch knife assembly 3 comprises that also working as fixed contact enters the mechanical type position sensing mechanism that clamping space 5 precalculated position rear drive parts 6 can move, mechanical type position sensing mechanism comprises position sensing end 71 and action triggers end 72, position sensing end 71 matches with the fixed contact that enters clamping space 5 precalculated positions, action triggers end 72 matches with driver part 6, and fixed contact matches with the zone at clamping space 5 two ends.
As shown in Figure 3, fixed contact comprises the first fixed contact 2a, the second fixed contact 2b, and clamping part comprises moving contact first clamping plate 81 and moving contact second clamping plate 82; The corresponding clamping space 5 that is formed with the ccontaining first fixed contact 2a, the second fixed contact 2b is respectively equipped with clamp system on the body of moving contact first clamping plate 81 and moving contact second clamping plate 82 between moving contact first clamping plate 81 and moving contact second clamping plate 82.Clamp system comprises that first pressing plate 91 and second pressing plate, 92, the first pressing plates 91 and second pressing plate 92 two ends and clamping plate body (moving contact first clamping plate 81, moving contact second clamping plate 82) separately flexibly connects by bearing pin 93.On the body of moving contact first clamping plate 81 and moving contact second clamping plate 82, first pressing plate 91 and second pressing plate 92 are installed all.
First pressing plate 91 on moving contact first clamping plate 81 and an end of second pressing plate 92 act on the body of moving contact first clamping plate 81; First pressing plate 91 on moving contact second clamping plate 82 and an end of second pressing plate 92 act on the body of moving contact second clamping plate 82.
As Fig. 7, Fig. 8, shown in Figure 9, driver part 6 comprises a control operating rod that can move radially 61, matching to merge with control operating rod 61 with control operating rod 61 moves radially and first push rod 62 and second push rod 63 that laterally move, first push rod 62 acts on first pressing plate 91 on moving contact first clamping plate 81 and the other end of second pressing plate 92, and second push rod 63 acts on first pressing plate 91 on moving contact second clamping plate 82 and the other end of second pressing plate 92.
In addition, driver part 6 also comprises a housing 65, control operating rod 61 and housing 65 sliding connections.Be slidingly matched and realize by the slide block that is provided with on the chute offered in the housing 65 and the control operating rod 61.Certainly, in addition, can realize that the structure that is slidingly matched is also a lot, here narration no longer one by one.One end hinge of the lower end of control operating rod 61 and first push rod 62 and second push rod 63 connects, and has first groove 651 and second groove 652 that first push rod 62 and second push rod 63 are moved on the housing 65; The other end of first push rod 62 acts on first pressing plate 91 on moving contact first clamping plate 81 and the other end of second pressing plate 92, and the other end of second push rod 63 acts on first pressing plate 91 on moving contact second clamping plate 82 and the other end of second pressing plate 92; Control operating rod 61 is provided with location hole 611, a ccontaining alignment pin 66 movable in the location hole 611 reaches the spring 67 that cooperates with alignment pin 66, it is corresponding with the location hole 611 on the operation pull bar 61 that keeper 64 passes housing 65, and corresponding with the alignment pin 66 in the location hole 611; Control operating rod 61 is connected with insulator 4.
The clamp system that present embodiment provides, its structural principle is similar to the lever structure for amplifying.First pressing plate 91 and second pressing plate 92 can be considered lever, are connected with moving contact second clamping plate 82 with moving contact first clamping plate 81 respectively.When first push rod 62 and second push rod 63 protruding and when leaning an end of first pressing plate 91 and second pressing plate 92 under the driving of control operating rod 61, stressed moving contact first clamping plate 81 and moving contact second clamping plate 82 of inwardly compressing of other end meeting of first pressing plate 91 and second pressing plate 92, the clamping space 5 that forms between moving contact first clamping plate 81 and moving contact second clamping plate 82 is dwindled, and then will enter the fixed contact clamping of clamping space.When control operating rod 61 can drive protruding first pressing plate 91 and second pressing plate 92 of leaning of first push rod 62 and second push rod 63 then is to respond to the precalculated position that fixed contact enters clamping space 5 by mechanical type position sensing mechanism 7 to control afterwards.
As Fig. 5, shown in Figure 6, mechanical type position sensing mechanism comprises a rotating kinematic link 7 and the reset components 10 that matches with kinematic link 7, and an end of kinematic link 7 is the action triggers end 72 that matches with keeper 64 on the driver part 6 for position sensing end 71, the other end that matches with the first fixed contact 2a and/or the second fixed contact 2b.
In the present embodiment, position sensing end 71 matches with the first fixed contact 2a.As shown in Figure 3, on the first fixed contact 2a, be provided with and position sensing end 71 corresponding protruding 21.
In the present embodiment that provides based on such scheme, an end of movable touch knife assembly 3 contact that connects of hinge with it is the second fixed contact 2b, and the other end is the first fixed contact 2a by rotating contact closed with it, that throw off.Therefore, projection 21 is located on the described first fixed contact 2a, after the first fixed contact 2a enters the precalculated position of clamping space 5, projection 21 depressed position sensor ends 71 are rotated kinematic link 7, and then drive action triggers end 72 moves the keeper 64 that leans on the driver part 6, trigger that control operating rod 61 moves and drive first push rod 62 and second push rod 63 is protruding leans first pressing plate 91 and second pressing plate 92, make moving contact first clamping plate 81 and moving contact second clamping plate 82 clamp the first fixed contact 2a thereby make moving contact first clamping plate 81 and 82 flexural deformations of moving contact second clamping plate dwindle clamping space 5.
The process of whole closure is divided into the locking two-step action that closes a floodgate, and gear is clear, conversion operations is smooth and easy.And in the whole closure, disconnection process, moving contact first clamping plate 81 of the first fixed contact 2a and movable touch knife assembly 3 and moving contact second clamping plate 82 do not have wearing and tearing, have prolonged useful life greatly.
In addition, among the embodiment that the utility model provides, the internal diameter of clamping space 5 is greater than the thickness of the first fixed contact 2a and the second fixed contact 2b, and the inner surface of moving contact first clamping plate 81 and moving contact second clamping plate 82 contacts with the surface of the first fixed contact 2a and the second fixed contact 2b.This structure makes movable touch knife assembly 3 in the process of closure, it is mobile that the inner surface of moving contact first clamping plate 81 and moving contact second clamping plate 82 is pasting showing of the first fixed contact 2a and the second fixed contact 2b, in the process that moves the dust on the first fixed contact 2a and the second fixed contact 2b surface disposed.In whole closing course, realized, avoided the first fixed contact 2a to contact dust and produce loose contact, surface corrosion or oxidation reaction, further prolonged the useful life of contact with second fixed contact 2b surface from cleaning function.
Based on the embodiment that the utility model provides, as Figure 11, shown in Figure 12, isolating switch can be two-phase isolating switch or three-phase isolation switch.
Extremely shown in Figure 16 as Figure 10, the switch cubicle that the isolating switch that provides in the foregoing description is installed that provides for the utility model, comprise cabinet 18, be positioned at the circuit breaker 11 of cabinet 18, the main bus bar and the isolating switch that are connected with circuit breaker 11, and with circuit breaker 11, the isolator operating mechanism 12 that isolating switch is connected, isolating switch comprises support 1, fixed contact, the movable touch knife assembly 3 that matches with fixed contact, movable touch knife assembly 3 and fixed contact are connected with an insulator 4 respectively, insulator 4 is installed on the support 1, movable touch knife assembly 3 comprises clamping part, and clamping part has the clamping space 5 that matches with fixed contact.Movable touch knife assembly 3 also comprises by the clamp system of self action change clamping space 5 size and drives the driver part 6 that clamp system moves.Movable touch knife assembly 3 also comprises when fixed contact enters is scheduled to the mechanical type position sensing mechanism 7 that clamping space 5 precalculated position rear drive parts 6 can move, mechanical type position sensing mechanism comprises position sensing end 71 and action triggers end 72, and position sensing end 71 matches with the fixed contact that enters clamping space 5 precalculated positions, action triggers end 72 matches with driver part 6.Isolator operating mechanism 12 is connected with driver part 6.
In the present embodiment, fixed contact comprises the first fixed contact 2a and the second fixed contact 2b.Structure among the embodiment of its structure and the isolating switch that provides above is identical, repeats no more here.
As shown in figure 10, isolating switch is divided into isolating switch 14 and following isolating switch 1, and last isolating switch comprises the disrance sleeve of being located on the support 1 13, is with copper bar 16 in the disrance sleeve 13, and the fixed contact of last isolating switch 14 is connected with copper bar 16 straight lines.Movable touch knife assembly 3 in the last isolating switch is connected with disrance sleeve 13 straight lines, is positioned on same the rectilinear direction, and making current direction is a straight line, has reduced destructive electric power.As Figure 13, shown in Figure 14, be with copper bar 16 and be formed with louvre 17 with disrance sleeve 13.It can solve the heat dissipation problem of the copper bar 16 that is embedded in the wall bushing 13 better, the heat of isolating switch lower end and circuit breaker junction can be passed by this louvre 17 simultaneously, helps the transmission of heat more.Conventional design just is embedded in copper bar in the epoxy resin of sleeve pipe, is unfavorable for heat radiation.
Claims (14)
1, a kind of isolating switch, comprise support (1), fixed contact, the movable touch knife assembly (3) that matches with fixed contact, described movable touch knife assembly (3) and fixed contact are connected with an insulator (4) respectively, and described insulator (4) is installed on the described support (1), it is characterized in that:
Described movable touch knife assembly (3) comprises clamping part, and described clamping part has the clamping space (5) that matches with described fixed contact;
Described movable touch knife assembly (3) also comprises by the clamp system of self the action described clamping space of change (5) size and drives the driver part (6) that described clamp system moves;
Described movable touch knife assembly (3) comprises that also working as described fixed contact enters the mechanical type position sensing mechanism that described clamping space (5) precalculated position rear drive parts (6) can move, described mechanical type position sensing mechanism comprises position sensing end (71) and action triggers end (72), and described position sensing end (71) matches with the fixed contact that enters described clamping space (5) precalculated position, action triggers end (72) matches with described driver part (6);
Described fixed contact matches with the zone at described clamping space (5) two ends.
2, a kind of isolating switch according to claim 1 is characterized in that: described fixed contact comprises first fixed contact (2a), second fixed contact (2b), and described clamping part comprises moving contact first clamping plate (81) and moving contact second clamping plate (82); Correspondence is formed with the described clamping space (5) of ccontaining described first fixed contact (2a), second fixed contact (2b) between described moving contact first clamping plate (81) and moving contact second clamping plate (82), is respectively equipped with described clamp system on the body of described moving contact first clamping plate (81) and moving contact second clamping plate (82).
3, a kind of isolating switch according to claim 2, it is characterized in that: described clamp system comprises first pressing plate (91) and second pressing plate (92), and first pressing plate (91) and second pressing plate (92) two ends and clamping plate body separately flexibly connects by bearing pin (93).
4, a kind of isolating switch according to claim 3 is characterized in that: first pressing plate (91) on described moving contact first clamping plate (81) and an end of second pressing plate (92) act on the body of moving contact first clamping plate (81); First pressing plate (91) on moving contact second clamping plate (82) and an end of second pressing plate (92) act on the body of moving contact second clamping plate (82).
5, a kind of isolating switch according to claim 4, it is characterized in that: driver part (6) comprises a control operating rod that can move radially (61), match to merge with described control operating rod (61) and move radially and first push rod (62) and second push rod (63) that laterally move with described control operating rod (61), described first push rod (62) acts on first pressing plate (91) on moving contact first clamping plate (81) and the other end of second pressing plate (92), and second push rod (63) acts on first pressing plate (91) and other end of second pressing plate (92) on moving contact second clamping plate (82).
6, a kind of isolating switch according to claim 5, it is characterized in that: described driver part (6) comprises that also one matches with described control operating rod (61) controlling the keeper (64) that described control operating rod (61) moves radially, and described keeper (64) matches with the action triggers end (72) of described mechanical type position sensing mechanism.
7, a kind of isolating switch according to claim 6 is characterized in that: described driver part (6) also comprises a housing (65), described control operating rod (61) and described housing (65) sliding connection; One end hinge of the lower end of described control operating rod (61) and described first push rod (62) and second push rod (63) connects, and has first groove (651) and second groove (652) that first push rod (62) and second push rod (63) are moved on the described housing (65); The other end of described first push rod (62) acts on first pressing plate (91) on moving contact first clamping plate (81) and the other end of second pressing plate (92), and the other end of second push rod (63) acts on first pressing plate (91) on moving contact second clamping plate (82) and the other end of second pressing plate (92); Described control operating rod (61) is provided with location hole (611), a ccontaining alignment pin (66) movable in the described location hole (611) reaches the spring (67) that cooperates with alignment pin (66), it is corresponding with the location hole (611) on the operation pull bar (61) that described keeper (64) passes housing (65), and corresponding with the alignment pin (66) in the location hole (611); Described control operating rod (61) is connected with described insulator (4).
8, a kind of isolating switch according to claim 6, it is characterized in that: described mechanical type position sensing mechanism comprises a rotating kinematic link (7) and the reset components (10) that matches with kinematic link (7), and an end of described kinematic link (7) is the described action triggers end (72) that matches with keeper (64) on the driver part for described position sensing end (71), the other end that matches with first fixed contact (2a) and/or second fixed contact (2b).
9, a kind of isolating switch according to claim 8, it is characterized in that: described kinematic link (7) is connected in the described clamping space (5) by described bearing pin (93), the zone line of described kinematic link (7) is rotating to be placed on one of them bearing pin (93), the stiff end of described reset components (10) is resisted against on another bearing pin (93), reset terminal acts on the kinematic link (7), and described kinematic link (7) its action triggers end (72) under reset mode is resisted against on another bearing pin (93).
10, isolating switch according to claim 9 is characterized in that: described first fixed contact (2a) is provided with and the corresponding projection of described position sensing end (71) (21).
11, isolating switch according to claim 2, it is characterized in that: the internal diameter of described clamping space (5) is greater than the thickness of first fixed contact (2a), second fixed contact (2b), and the inner surface of described moving contact first clamping plate (81) and moving contact second clamping plate (82) contacts with the surface of described first fixed contact (2a), second fixed contact (2b).
12, isolating switch according to claim 1 is characterized in that: described isolating switch is two-phase isolating switch or three-phase isolation switch.
13, a kind of switch cubicle that aforesaid right requirement 1 to 12 arbitrary described isolating switch is installed, comprise cabinet (18), be positioned at the circuit breaker (11) of cabinet (18), the main bus bar and the isolating switch that are connected with circuit breaker (11), and with circuit breaker (11), the isolator operating mechanism that isolating switch is connected (12), described isolating switch comprises support (1), fixed contact, the movable touch knife assembly (3) that matches with fixed contact, described movable touch knife assembly (3) and fixed contact are connected with an insulator (4) respectively, described insulator (4) is installed on the described support (1), it is characterized in that:
Described movable touch knife assembly (3) comprises the clamping part that matches with described fixed contact, and described clamping part has the clamping space (5) that matches with described fixed contact;
Described movable touch knife assembly (3) also comprises by the clamp system of self the action described clamping space of change (5) size and drives the driver part (6) that described clamp system moves;
Described movable touch knife assembly (3) comprises that also working as described fixed contact enters the mechanical type position sensing mechanism that described clamping space (5) precalculated position rear drive parts (6) can move, described mechanical type position sensing mechanism comprises position sensing end (71) and action triggers end (72), and described position sensing end (71) matches with the fixed contact that enters described clamping space (5) precalculated position, action triggers end (72) matches with described driver part (6);
Described isolator operating mechanism (12) is connected with driver part (6).
14, switch cubicle according to claim 13, it is characterized in that: described isolating switch is divided into isolating switch (14) and following isolating switch (15), the described isolating switch (14) of going up comprises the disrance sleeve of being located on the described support (1) (13), be with copper bar (16) in the described disrance sleeve (13), the described fixed contact of going up isolating switch (14) is connected with copper bar (16) straight line, and described copper bar (16) is formed with louvre (17) with described disrance sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201807770U CN201311868Y (en) | 2008-12-05 | 2008-12-05 | Isolating switch and switch cabinet provided with isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201807770U CN201311868Y (en) | 2008-12-05 | 2008-12-05 | Isolating switch and switch cabinet provided with isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311868Y true CN201311868Y (en) | 2009-09-16 |
Family
ID=41109125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201807770U Expired - Lifetime CN201311868Y (en) | 2008-12-05 | 2008-12-05 | Isolating switch and switch cabinet provided with isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201311868Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679590A (en) * | 2016-03-30 | 2016-06-15 | 东电电气科技（杭州）股份有限公司 | High-voltage circuit breaker |
| CN107171613A (en) * | 2017-05-17 | 2017-09-15 | 中信重工机械股份有限公司 | A kind of automatic switching control equipment and automatic switching method of motor winding |
-
2008
- 2008-12-05 CN CNU2008201807770U patent/CN201311868Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679590A (en) * | 2016-03-30 | 2016-06-15 | 东电电气科技（杭州）股份有限公司 | High-voltage circuit breaker |
| CN107171613A (en) * | 2017-05-17 | 2017-09-15 | 中信重工机械股份有限公司 | A kind of automatic switching control equipment and automatic switching method of motor winding |
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