CN1206214A - Contact mechanism of switch device - Google Patents
Contact mechanism of switch device Download PDFInfo
- Publication number
- CN1206214A CN1206214A CN 98115453 CN98115453A CN1206214A CN 1206214 A CN1206214 A CN 1206214A CN 98115453 CN98115453 CN 98115453 CN 98115453 A CN98115453 A CN 98115453A CN 1206214 A CN1206214 A CN 1206214A
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- China
- Prior art keywords
- connecting rod
- carriage
- swing arm
- contact
- contact mechanism
- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
- H01H2033/426—Details concerning the connection of the isolating driving rod to a metallic part
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The bending torque of the connecting rod when connected to the active contact device and shaking rod to complete the open circuit function of the switching device is reduced, and the minimized whole structure in accordance with the reduced size of the connecting rod is realized. At the bottom port of lower rod of the connecting rod, a connecting pin parallel to the shaft of the shaking arm is formed. A long hole is formed at the connecting frame where it is connected to the ending port of the shaking arm. The connecting rod and the connecting frame are connected together by inserting the connecting pin into the long hole. The pressure-contacting spring is setup in between the spring plate of the connecting frame 6 upper port and the insulating plate of the connecting rod. As the open circuit function is activated, the potential of the pressure-contacting spring is released through the connecting pin and the upper edge of the long hole.
Description
The present invention relates on the electric power switch units such as circuit breaker, switch for when main contact is connected, keep and fixed contact between contact pressure and contact mechanism that travelling contact is exerted pressure.
On switching devices such as circuit breaker, switch, when travelling contact being contacted make main contact to be connected with fixed contact, to push travelling contact to fixed contact, and make the contact pressure that keeps certain between the two, such as the contact mechanism shown in the open 1988-55737 communique of Japanese patent of invention, be when making ON Action, will be installed in to press the spring pressure accumulation in the actuating mechanism of travelling contact, try hard to recommend the pressure travelling contact by this pressure accumulation, to obtain contact pressure for fixed contact.
Fig. 5 and the sectional view that Figure 6 shows that structure and the similar conventional circuit breaker of aforementioned 1988-55737 communique, Fig. 5 represents on-state, Fig. 6 represents off state.
The inside that this circuit breaker ties up to vacuum switch tube 1 has the vacuum circuit-breaker of fixed contact 10 and travelling contact 11.The end of the fixed contact 10 that stretches out on the top of vacuum switch tube 1 and insulation supporter are connected in the main circuit conductor 20 on insulation frame 2 tops, and the extension of the travelling contact 11 that stretches out to vacuum switch tube 1 bottom then is connected through pliability bonding conductor 22 and with the main circuit conductor 21 of insulation supporter at frame 2 pars intermedias that insulate.
Inside at the support 3 of the bottom of supporting insulation frame 2 is provided with the swing arm 4 that the middle part is subjected to fulcrum 40 supportings of approximate horizontal.The end of this swing arm 4 through connecting rod 50 and with is connected with inside that insulation frame 2 is bearing in the drive unit 5 on the support 3 side by side, swing arm 4 is subjected to aforementioned connecting rod 50 push-and-pulls according to the action of drive unit 5, and swings around fulcrum 40.
On the other hand, the other end of the swing arm 4 of arrival insulation frame 2 bottoms is connected with the bottom of aforementioned travelling contact 11 through contact mechanism.Fig. 7 is the amplification view of contact mechanism, and is as shown in the drawing, and contact mechanism has the connecting rod 70, the connection carriage 71 that is connected with the other end of swing arm 4 that are connected with the bottom of travelling contact 11, be installed in and press spring 7 between them.
Connecting rod 70 is connected upper bar 72 with lower pole 73 coaxially through connecting plate 74 made of insulating material, and screws togather the end of upper bar 72 and the lower end of travelling contact 11 fixing.Connecting carriage 71 is the sheet material that bends to the L font, it is connected with the end of swing arm 4 through connecting pin 75 on one side, the through hole that connects on carriage 71 another sides is passed in the bottom of aforementioned lower pole 73, and prevents that by the baffle plate 77 that is fixed on its end with bolt 76 it from deviating from.
Pressing spring 7 is the helical springs that are enclosed within lower pole 73 outsides, its lower end and the another side Elastic Contact that is connected carriage 71, and on it and in outwardly directed push plate 78 Elastic Contact of the middle part of lower pole 73, afterburning round about by its elastic force to the two.
Have on the conventional circuit breaker of said structure, when being in on-state shown in Figure 5, fully stretch out to the below of the carriage 71 of being pushed to the top by swing arm 4 bottom of lower pole 73, pressing spring 7 is compressed between approaching mutually connection carriage 71 and push plate 78, be in the pressure accumulation state, on the inside of vacuum switch tube 1 and travelling contact 11 that fixed contact 10 contacts, pressing spring 7 upwards imposes on the elastic force of push plate 78 through connecting rod 70 and work, with enough contact pressure pushing fixed contacts 10, realize reliable on-state.
Under such on-state, in case aforementioned drive unit 5 does to open circuit action, swing arm 4 just draws the clockwise direction in figure to swing on the connecting portion because of aforementioned connecting rod 50, because this swing, connect carriage 71 and pulled down, with baffle plate 77 butts of lower pole 73 lower ends, and the further swing of swing arm 4 just pulls down connecting rod 70, the travelling contact 11 that is connected with the upper end of this connecting rod 70 just draws back from fixed contact 10, forms off state shown in Figure 6.
And under such off state, in case aforementioned drive unit 5 carries out ON Action, swing arm 4 just presses down counter clockwise direction swing in figure because of the connecting portion of aforementioned connecting rod 50, because this swing, connecting carriage 71 is upwards pushed away, pressing spring 73 compresses connecting carriage 71 and be located between the push plate on the lower pole 73, the result, because the swing of this compression reaction force and swing arm 4, connecting rod 70 is upwards pushed away, and the travelling contact 11 that is connected with the upper end of this connecting rod 70 just contacts with fixed contact 10.After producing this contact, moving of connecting rod 70 promptly stops, and connect carriage 71 on push away and still continuing, near aforementioned push plate 78, as a result, press spring 7 and compressed and pressure accumulation by brute force, because this presses the elastic force of spring 7 at the two, as previously mentioned, between travelling contact 11 and fixed contact 10, can obtain sufficient contact pressure.
In addition, above-mentioned circuit breaker is as three-phase alternating current usefulness, can be through same contact mechanism at three-phase and the travelling contact 11,11 of the main contact that is provided with respectively ... with along the axial length direction of aforementioned fulcrum 40 and the swing arm separately 4,4 that is arranged side by side ... connect.
Yet, have on the circuit breaker of above-mentioned contact mechanism, as previously mentioned, when becoming off state from on-state, because will connect carriage 71 along with the swing of swing arm 4 pulls down, make the aforementioned elastic force that presses spring 7 that is in the pressure accumulation state under on-state obtain discharging, the aforementioned connection carriage 71 of result can be with the said baffle 77 of high velocity impact lower pole 73 lower ends.
Fig. 7 represents this collision state constantly, at this moment, connection carriage 71 that causes because of the effect of the elastic force F that presses spring 7 and the collision between the baffle plate 77 are except the occasion of the accurate quadrature of direction of the direction of the swing arm 4 that connects carriage 71 and connected and aforementioned elastic force F, generally shown in A point among the figure, it is place generation at the circumferencial direction of baffle plate 77, in the occasion that this class collision takes place, on the point of impingement A of L, concentrating the effect of the aforementioned elastic force F that applies can make connecting rod 70 integral body that comprise lower pole 73 that moment of flexure all takes place with the axle center of lower pole 73, therefore must on each member that constitutes this connecting rod 70, all guarantee to tolerate the intensity of aforementioned moment of flexure, will cause the maximization of contact mechanism integral body like this, simultaneously because the weight of movable link increases, make to connect/usefulness that opens circuit the operating energy of drive unit 5 increase.
In addition, three-phase alternating current with circuit breaker on, also must regulate operation, that is, the reduced size that presses spring 7 when connecting at three-phase contact mechanism and increasing and decreasing separately makes the connection of each phase and opens circuit regularly consistent.In shown in Figure 7 traditional pressure accumulation mechanism, this adjusting operation is following to be carried out: unclamp and be located at lower pole 73 adjusting midway with nut 79, be adjusted in the length that is screwed on the Lower Half that forms push plate 78, and screw once again and regulate with nut 79, increase and decrease the length of lower pole 73 therefrom, and as shown in Figure 5 and Figure 6, the correspondence position at aforementioned dielectric frame 2 back sides offers the fenestra 23 of regulating usefulness, operates aforementioned adjusting nut 79 through this fenestra 23.
Yet, owing to offered aforementioned fenestra 23, in order to remedy owing to this offers the intensity reduction that causes, must increase the thickness of insulation frame 2, the result causes installation weight to increase, and the position of aforementioned fenestra 23 is near the position that is provided with of charging part such as the bonding conductor 22 of insulation frame 2 inside and fixed-use bolt thereof, must guarantee they and the air insulation distance that is located at the conductor parts such as grounded metal at the circuit breaker back side, be restricted with regard to the shortening that makes circuit breaker depth size like this, become a factor that hinders the circuit breaker miniaturization.
In view of above-mentioned truth, the object of the present invention is to provide contact mechanism, this contact mechanism can reduce to follow the moment of flexure that opens circuit action and take place on connecting rod, small-sized by connecting rod realizes the total miniaturization, can on position, regulate simultaneously, can dwindle the depth size of switching device pressing spring away from the charging part of insulation frame inboard.
The contact mechanism of the switching device of the present invention's the 1st scheme is that the boat nail in connecting rod that is connected with travelling contact and the connection carriage that is connected with swing arm is gone into the connecting pin with the fulcrum almost parallel of swing arm, and this connecting pin is passed in the slotted hole that the opposing party forms, with connecting rod be connected the carriage connection.
In this scheme, be in the sliding length scope of connecting pin in slotted hole, will press the spring pressure accumulation, make because of the action of opening circuit the time presses spring release pressure connecting rod that causes and the collision that is connected carriage and be created on the roughly axle center of connecting rod the moment of flexure that on connecting rod, takes place to reduce to follow this collision to the collision of slotted hole end face as connecting pin.
The contact mechanism of the switching device of the present invention's the 2nd scheme is to be provided with connecting portion between swing arm and to regulate the device that is connected the extension elongation of carriage on swing arm connecting carriage.
In this scheme,, can regulate the reduction length that presses spring by at swing arm and the connecting portion that is connected carriage, promptly regulate at the enterprising line length in position away from the charging part of insulation frame inboard.
The contact mechanism of the switching device of the present invention's the 3rd scheme is the recess that one side relative with push plate on latch plate is provided as the spring base that presses spring.
In this scheme, recess is set connecting on the latch plate of carriage, and makes and press spring and this recess Elastic Contact, to prevent that pressing spring departs from latch plate.
The contact mechanism of the switching device of the present invention's the 4th scheme be the connecting rod of realizing with connecting pin and the link position that is connected carriage be set in from the oscillation center of swing arm hang down into connecting rod axle center line vertical line near.
In this programme, the movement locus of the connecting portion between swing arm when swing and the connecting rod can be away from the axle center of connecting rod, and follows the swing of swing arm and the amplitude of oscillation when connecting rod that takes place and travelling contact action is less.
It below is simple declaration to accompanying drawing.
Fig. 1 is the sectional view that expression has the closing of power circuit breaker state of contact mechanism of the present invention.
Fig. 2 is the sectional view that expression has the circuit breaker off state of contact mechanism of the present invention.
Fig. 3 is the amplification view of contact mechanism of the present invention.
Fig. 4 is the view of the IV-IV line direction along Fig. 3.
Fig. 5 is the sectional view that expression has the closing of power circuit breaker state of traditional contact mechanism.
Fig. 6 is the sectional view that expression has the circuit breaker off state of traditional contact mechanism.
Fig. 7 is the amplification view of traditional contact mechanism.
Below in conjunction with description of drawings example of the present invention.Fig. 1 and Fig. 2 are the sectional views with circuit breaker of contact mechanism of the present invention, and Fig. 1 represents on-state, and Fig. 2 represents off state.
This circuit breaker and Fig. 5 and circuit breaker shown in Figure 6 are identical, are to be provided with the vacuum circuit-breaker of opposed fixed contact 10 and travelling contact 11 up and down in vacuum switch tube 1 inside that keeps vacuum.Vacuum switch tube 1 is subjected to sagging supporting to fixed contact 10 as supporting mass in the inside of insulation frame 2, and the end of the fixed contact 10 that stretches out on the top of vacuum switch tube 1 is connected with the main circuit conductor 20 of insulation supporter on insulation frame 2 tops.
Travelling contact 11 is supported on the vacuum switch tube 1, can move freely in the direction of contact and disengaging fixed contact 10.The extension that travelling contact 11 stretches out to vacuum switch tube 1 bottom is connected through flexual bonding conductor 22 and with the main circuit conductor 21 of insulation supporter in insulation frame 2 pars intermedias, by between fixed contact 10 and the travelling contact 11 contact and disengaging realizes on-state and the cut off state that main circuit conductor 20 and main circuit conductor 21 are electrically connected.
In the inside of the support 3 that supports insulation frame 2 bottoms, be provided with midway by the swing arm 4 of fulcrum 40 supportings of approximate horizontal.One end of this swing arm 4 through connecting rod 50 and with is connected with inside that insulation frame 2 is located at the drive unit 5 on support 3 tops side by side, swing arm 4 is swung around fulcrum 40 by aforementioned 50 push-and-pulls according to the action of drive unit 5.
In addition, the other end of the swing arm 4 of arrival insulation frame 2 bottoms is connected with the bottom of the travelling contact 11 that stretches out below vacuum switch tube 1 through contact mechanism of the present invention.Fig. 3 is the amplification view of contact mechanism of the present invention, and Fig. 4 is the view of the IV-IV line direction along Fig. 3.This contact mechanism has connecting rod 60, the connection carriage 61 that is connected with the other end of swing arm 4 that is connected with the bottom of travelling contact 11 and is installed in and presses spring 6 between them.
Connecting rod 60 is through umbrella shape insulation boards 64 and upper bar 62 and 63 coaxial linking to each other of lower pole, as depicted in figs. 1 and 2, the bottom of the upper end of upper bar 62 and travelling contact 11 screws togather fixing.Upper bar 62 is connected its first half 62a by the connecting pin 62c parallel with the fulcrum 40 of aforementioned swing arm 4 with Lower Half 62b.
Connect carriage 61 and have the thread spindle 61a that protrusion is arranged on the one side.Swing arm 4 is connected in order to ensure its bending strength and with connecting portion 61, as shown in Figure 4, its cross section is " コ " font that lower limb has horizontal component, connecting carriage 61 is that aforementioned threads axle 61a is passed the horizontal component of swing arm 4, and uses the adjusting nut 61b, the 61c that screw togather with thread spindle 61a that this is passed part to screw togather fastening up and down.Use this syndeton, can regulate nut 61b, 61c by unclamping, increase and decrease thread spindle 61a passes and will regulate nut 61b, 61c once again after the length of part and screw, and is transferred to suitable length and will connect the extension elongation of carriage 61 on swing arm 4.
Form the recess 61d that its size can be inserted for lower pole 63 in addition on the top that connects carriage 61, the axial length direction that is formed on aforementioned threads axle 61a in the two side of this recess 61d relative with the direction of the fulcrum 40 of swing arm 4 has the slotted hole 65,65 of certain-length.On the other hand, near the bottom of lower pole 63, with fulcrum 40 almost parallels of swing arm 4 hammer into connecting pin 66, connecting rod 60 be connected carriage 61 by the recess 61d of connection carriage 61 is inserted in the lower end of lower pole 63, and make the two ends of aforementioned connecting pin 66 pass aforementioned slotted hole 65,65 and connect.
As shown in Figure 3, the top edge in connection carriage 61 two sides that form slotted hole 65,65 forms the chevron protuberance 61e that there is the top in central authorities.This protuberance 61e supports the circular plate type latch plate 67 that runs through lower pole 63 by the butt from the below.
The aforementioned spring 6 that presses is the helical springs that are enclosed within lower pole 63 outsides, its lower end be bearing in latch plate 67 Elastic Contact that are connected on the carriage 61 as described above like that, its upper end and opposed insulation board 64 Elastic Contact above latch plate 67, afterburning round about with its elastic force to the two.Form the recess 67a of edge chamfer at the upper side of latch plate 67, the aforementioned lower end that presses spring 6 embeds aforementioned recess 67a, to prevent that depart from the Elastic Contact position on latch plate 67 when carrying out pressure accumulation described later and release pressure.
In addition, in this example, be to make upper end and insulation board 64 Elastic Contact that press spring 6, and when carrying out described later the action, this insulation board 64 is also used as the push plate that pushing presses spring 6, can certainly be same with the push plate 78 on traditional contact mechanism shown in Figure 7, at the middle part of lower pole 63 special-purpose push plate is set.
On the circuit breaker of contact mechanism with said structure, when being in on-state shown in Figure 1, the lower end of lower pole 63 enters in the recess 61d of the connection carriage 61 that is pushed upward by swing arm 4, and nail slides and becomes state near this slotted hole 65 lower limbs along connecting the slotted hole 65 that forms on the carriage 61 at the connecting pin on the lower pole 63 66.At this moment pressing spring 6 is compressed and pressure accumulation being supported between the latch plate 67 that connects on the carriage 61 and the insulation board 64 as push plate, pressing elastic force that spring 6 upwards imposes on insulation board 64 acts on through upper bar 62 on the inside of vacuum switch tube 1 and travelling contact 11 that fixed contact 10 contacts, with enough contact pressure pushing fixed contacts 10, to realize reliable on-state.
Under this on-state, in case aforementioned drive unit 5 is carried out the action of opening circuit, swing arm 4 just draws along the swing of the clockwise direction among the figure on the connecting portion because of aforementioned connecting rod 50, and it is drop-down that this swing will connect carriage 61.Because connecting pin 66 slides along connecting the slotted hole 65 that forms on the carriage 61, this drop-down action is not transmitted to lower pole 63 in the length range of aforementioned slotted hole 65, but behind the top edge butt of connecting pin 66 and slotted hole 65, the further swing of swing arm 4 will act on lower pulling force on lower pole 63, the travelling contact 11 that passes through insulation board 64 and upper bar 62 and connect is drawn back from fixed contact 10, obtain off state shown in Figure 2.
Under such off state, in case aforementioned drive unit 5 is made ON Action, swing arm 4 is just because following the pushing away of the connection end of aforementioned connecting rod 50 and swing counterclockwise in figure upwards pushes away the connection carriage 61 that is connected with the other end.Because this press-out, be bearing in the latch plate 67 that connects on the carriage 61 near aforementioned dielectric plate 64, pressing spring 6 is compressed between the two, passing through insulation board 64 by the effect of this compression counter-force upwards pushes away upper bar 62, the travelling contact 11 that is connected with these upper bar 62 upper ends moves up and contacts with fixed contact 10
After this contact took place, because the restriction of travelling contact 11, connecting rod 60 stopped to move, and then 66 along its gone up the slotted hole 65 that forms and slide by connecting pin to connect carriage 61, while make the lower end of lower pole 63 deeper enter recess 61d interior by on push away.Like this, be bearing in the latch plate 67 that connects on the carriage 61 just by on push away and near insulation board 64, press spring 6 and be subjected to powerful compression and pressure accumulation at the two, this elastic force that presses spring 6 is through connecting rod 60 and impose on travelling contact 11, and fixed contact 10 between obtain enough contact pressures.
From the on-state of as above carrying out when off state changes, contact mechanism of the present invention is that the drop-down elastic force F that presses spring 6 that is in the pressure accumulation state under the on-state that makes of the connection carriage 61 that takes place by the swing of following swing arm 4 obtains discharging, the result, aforementioned connection carriage 61 is by the powerful downwards pushing of the aforementioned elastic force F that works through latch plate 67, the connecting pin 66 that connects carriage 61 and lower pole 63 slides along slotted hole 65, and collides the top edge of this slotted hole 63.
Fig. 3 and Fig. 4 represent this collision state constantly.In contact mechanism of the present invention, follow the collision that presses spring 6 release pressures and take place as previously mentioned, be to occur in to be formed to connect the slotted hole 65 on the carriage 61 and follow closely between the connecting pin on the lower pole 63 66, because fulcrum 40 almost parallels of this connecting pin 66 and swing arm 4, so the point of impingement A that aforementioned spring F concentrates as shown in Figure 3, roughly is on the axial line of lower pole 63.
Thereby, follow this collision and comprising that the moment of flexure that takes place on the whole connecting rod 60 of lower pole 63 is less, when designing the intensity of each member that constitutes connecting rod 60, the influence of aforementioned moment of flexure needn't be considered,, the volume of whole contact mechanism can be dwindled significantly by dwindling the size of connecting rod 60, and alleviated the weight of the movable link that comprises connecting rod 60, its result can make drive unit 5 miniaturizations of connecting/opening circuit usefulness, and makes whole circuit breaker miniaturization.
In above example, be to connect formation slotted hole 65 on the carriage 61, and on lower pole 63, hammer into connecting pin 66, can certainly be opposite, that is, on lower pole 63, form slotted hole, and on connection carriage 61, hammer into connecting pin 66, constitute connection status by making the latter run through the former.
In addition, in contact mechanism of the present invention, as previously mentioned, connecting the extension elongation of carriage 61 on swing arm 4 can pass through regulating nut 61b, the operation of 61c and regulating, can increase and decrease the length of the contact mechanism that comprises connecting rod 60 by this adjusting, so connect and open circuit regularly and increase and decrease presses the adjusting operation of the reduced size of spring 6 and can carry out on swing arm 4 and the link position that is connected between the carriage 61 in order to regulate, as depicted in figs. 1 and 2, the fenestra 24 that aforementioned adjusting operation is used can be located at the below of insulation frame 2, promptly away from the position of the charging part of insulation frame 2 inboards.So just be easy to guarantee to be located at necessary air insulation distance between the conductor part at the circuit breaker back side and the aforementioned charging part, and the depth size that can reduce circuit breaker significantly, thereby miniaturization more.
Also have, connection carriage of realizing by connecting pin 66 61 and the link position between the lower pole 63 as shown in Figure 3, be set in oscillation center from swing arm 4, be fulcrum 40 mind-set comprise vertical line that the axial line of connecting rod 60 of lower pole 63 is sagging near.Therefore, follow the swing of swing arm 4 and the movement locus of the aforementioned coupling part that takes place can be away from the axle center of connecting rod 60, can with connect and open circuit action the time amplitude of oscillation amount of connecting rod 60 remain on low-levelly, can stably move.
As mentioned above, in the contact mechanism of the switching device of the present invention's the 1st scheme, to connecting with travelling contact The connecting rod that connects and the connection carriage that is connected with swing arm are by propping up the side in them and swing arm The connecting pin that hammers into is applied in slotted hole that the opposing party forms and the two connection, so it is moving to open circuit the axle almost parallel When doing because of press spring the release pressure connecting rod that causes and the collision that is connected carriage by connecting pin to length The collision of nose end and occurring on the roughly axle center of connecting rod can reduce to follow this collision and on connecting rod The moment of flexure that takes place realizes miniaturization by the size of dwindling the movable link that comprises connecting rod.
In the contact mechanism of the switching device of the present invention's the 2nd scheme, connecting between carriage and the swing arm Connecting portion is provided with the adjusting device that regulate to connect carriage extension elongation on swing arm, so can be away from insulation The position adjusted of the charging part of frame inboard presses the reduction length of spring, guarantees and be located at easily the back side one side Conductor part between the air insulation distance, the depth size that can reduce switching device.
In the contact mechanism of the switching device of the present invention's the 3rd scheme, relative with push plate on latch plate One side arranges recess, and this recess is used as the spring base that presses spring, so reach pressing spring pressure-accumulating When the release pressure, can prevent from pressing spring departing from latch plate, can stably move.
In the contact mechanism of the switching device of the present invention's the 4th scheme, the connecting rod of realizing by connecting pin Be connected link position between the carriage and be set in oscillation center from swing arm under the axial line of connecting rod Near the vertical line that hangs down, the motion track of the connecting portion that takes place so follow the swing of swing arm can be away from connecting The axle center of extension bar, the amplitude of oscillation in the time of can reducing the action of connecting rod and travelling contact realizes stable action.
Claims (4)
1. the contact mechanism of a switching device is characterized in that, has: the connecting rod that an end is connected with the travelling contact of switching device; Center on the swing arm that axle is swung according to connection or open-circuit operation; The connection carriage that one end is connected with this swing arm; The connecting pin that hammers into described connecting rod or described the other end that is connected carriage with the axle almost parallel ground of described swing arm, is applied in the slotted hole of the other end formation of described connection carriage or described connecting rod, this connection carriage is connected and can moves along the axial length direction in the length range of described slotted hole with described connecting rod; Be fixed on the push plate of the middle part of described connecting rod; Opposed with this push plate and be bearing in the described latch plate that is connected carriage the other end; And be installed in the spring that presses between them.
2. the contact mechanism of switching device according to claim 1 is characterized in that, is provided with at the connection carriage and the connecting portion of swing arm and regulates the described device that is connected the extension elongation of carriage on this swing arm.
3. the contact mechanism of switching device according to claim 1 and 2 is characterized in that, latch plate is provided as the recess of the spring base that presses spring in the one side relative with push plate.
4. the contact mechanism of switching device according to claim 1 and 2 is characterized in that, the connecting rod of realizing with connecting pin and the link position that is connected carriage be set in from the oscillation center of swing arm hang down into connecting rod axle center line vertical line near.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19290297A JP3536168B2 (en) | 1997-07-17 | 1997-07-17 | Switch contact pressure mechanism |
| JP192902/97 | 1997-07-17 | ||
| JP192902/1997 | 1997-07-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1206214A true CN1206214A (en) | 1999-01-27 |
| CN1190813C CN1190813C (en) | 2005-02-23 |
Family
ID=16298888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981154530A Expired - Lifetime CN1190813C (en) | 1997-07-17 | 1998-07-06 | Contact mechanism of switch device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3536168B2 (en) |
| CN (1) | CN1190813C (en) |
| TW (1) | TW389920B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908434A (en) * | 2009-06-08 | 2010-12-08 | 施耐德电器工业公司 | Method for regulating overtravel |
| CN102479643A (en) * | 2010-11-29 | 2012-05-30 | 江苏省电力公司吴江市供电公司 | Linkage operating mechanism for load disconnecting switch |
| CN101388301B (en) * | 2007-09-13 | 2013-06-19 | 伊顿电气公司 | Operating mechanism with adjustment of contact force |
| CN103515142A (en) * | 2012-06-18 | 2014-01-15 | 株式会社日立制作所 | Electromagnetic operation type switching device |
| CN107234179A (en) * | 2017-07-28 | 2017-10-10 | 福州大学 | Detect that guide-pin type sheet material transmits bad detection device and its method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002124163A (en) * | 2000-10-16 | 2002-04-26 | Mitsubishi Electric Corp | Switchgear |
| JP4566216B2 (en) * | 2007-05-22 | 2010-10-20 | 三菱電機株式会社 | Insulation frame of vacuum switchgear |
| US7863534B2 (en) | 2008-04-15 | 2011-01-04 | General Electric Company | Spring discharge mechanism for circuit breaker |
| JP6282522B2 (en) * | 2014-04-25 | 2018-02-21 | 株式会社日立産機システム | Electromagnetic operating switchgear and wipe amount adjustment method thereof |
| US20240212957A1 (en) * | 2022-12-22 | 2024-06-27 | Eaton Intelligent Power Limited | Multi-part moving shaft assembly for ultra high speed actuator used in a hybrid circuit breaker |
-
1997
- 1997-07-17 JP JP19290297A patent/JP3536168B2/en not_active Expired - Fee Related
-
1998
- 1998-06-18 TW TW87109744A patent/TW389920B/en not_active IP Right Cessation
- 1998-07-06 CN CNB981154530A patent/CN1190813C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388301B (en) * | 2007-09-13 | 2013-06-19 | 伊顿电气公司 | Operating mechanism with adjustment of contact force |
| CN101908434A (en) * | 2009-06-08 | 2010-12-08 | 施耐德电器工业公司 | Method for regulating overtravel |
| CN101908434B (en) * | 2009-06-08 | 2013-09-11 | 施耐德电器工业公司 | Method for regulating overtravel |
| CN102479643A (en) * | 2010-11-29 | 2012-05-30 | 江苏省电力公司吴江市供电公司 | Linkage operating mechanism for load disconnecting switch |
| CN103515142A (en) * | 2012-06-18 | 2014-01-15 | 株式会社日立制作所 | Electromagnetic operation type switching device |
| CN107234179A (en) * | 2017-07-28 | 2017-10-10 | 福州大学 | Detect that guide-pin type sheet material transmits bad detection device and its method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1140013A (en) | 1999-02-12 |
| TW389920B (en) | 2000-05-11 |
| JP3536168B2 (en) | 2004-06-07 |
| CN1190813C (en) | 2005-02-23 |
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