CN113748476A - Spring system for a drive system having a coupling, spring system having a coupling, drive system having a coupling and a spring system, and switching installation having such a drive system - Google Patents
Spring system for a drive system having a coupling, spring system having a coupling, drive system having a coupling and a spring system, and switching installation having such a drive system Download PDFInfo
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- CN113748476A CN113748476A CN202080032198.5A CN202080032198A CN113748476A CN 113748476 A CN113748476 A CN 113748476A CN 202080032198 A CN202080032198 A CN 202080032198A CN 113748476 A CN113748476 A CN 113748476A
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- 230000008878 coupling Effects 0.000 title claims abstract description 114
- 238000010168 coupling process Methods 0.000 title claims abstract description 114
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 114
- 238000009434 installation Methods 0.000 title claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 29
- 238000007906 compression Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 21
- 210000002105 tongue Anatomy 0.000 description 41
- 230000001419 dependent effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A spring system for a drive system having a coupling, a spring system having a coupling, a drive system having a coupling and a spring system, and a switching installation having such a drive system. The invention relates to a spring system for a drive system having a coupling, to a spring system having a coupling, to a drive system having a coupling and a spring system, and to a switching installation having such a drive system.
Description
The invention relates to a spring system for a drive system having a coupling, to a spring system having a coupling, to a drive system having a coupling and a spring system, and to a switching installation having such a drive system. A switching installation is understood here to be a switching installation for low and medium voltages, in particular medium voltages of 1kV to 52kV (inclusive).
Drive systems or drives are known in particular from the prior art, which drive the two-position or multi-position switch by means of different drives having different drive parameters and additional latching devices; the driver completes all switching operations with a preset set of driver parameters and is therefore not optimally designed for the individual switching operations. The spring system in conventional drive systems for two-position or multi-position switches is usually realized by a helical torsion spring which has two contact points on each side. Alternatively, it is known to use a tension or compression spring, and to use it via a lever, in order to pull or compress the spring beyond its dead center during switching and thus to reverse the direction. Furthermore, the load disconnector has to be switched to three different switching states "off", "on" or "grounded". For this purpose, a drive is required which switches the switching device into one of the three switching states at a specific switching speed and holds the switching device there. It switches back and forth between the switching states off and on or off and ground, for which it is necessary to reverse the drive direction.
These systems are therefore more expensive due to the fixed parameter presets and more complex in their design.
The technical problem to be solved by the invention is to avoid the disadvantages of the prior art.
The object is solved by the independent claims and their dependent claims.
Embodiments relate to a spring system having a compression spring which, by means of its mounting and support conditions, operates as a pressure accumulator or tension accumulator. This is achieved by using compression springs which are directly compressed, i.e. prestressed or pretensioned, in one switching direction and indirectly compressed, i.e. pretensioned or pretensioned, in the opposite switching direction by means of the first spring tongue and the second spring tongue. The pretensioning results in the storage of mechanical energy for the respective switching process.
This structure is simpler since the pressure spring is more simply supported than the torsion coil spring. Furthermore, the pressure spring does not have too much friction loss, and therefore a weaker spring can be installed. The spring force is converted into torque by the drive rod. This provides the possibility of varying the torque curve and of optimally using the energy. The spring system may be used for a two-position drive (spring set for splitter and ground split) or a three-position drive (spring set common for splitter and ground).
Preferably, the spring system is formed by a clamping lever, a first spring tongue, a second spring tongue, a compression spring, an actuating lever, a first spring leaf and a second spring leaf.
Furthermore, it is preferred that the spring system has a first spring plate and/or a second spring plate.
It is also preferred that the spring system is designed for a step drive or a storage drive of a load disconnector of a medium-voltage installation, which has three switch positions "on", "off" and "earth" or two switch positions "off", "on" or "off", "earth".
The spring system is also preferred, wherein the spring system has a drive rod and a first, second, third and fourth pawl, i.e. a combined plurality of pawls, wherein the pawls are designed for controlling and positioning the switch positions by arranging them such that they act differently on the drive rod in different switch positions.
The spring system (9) is also preferably designed to be clamped or clampable in a pressing manner by means of the clamping lever (100) of the first spring tongue (200), the second spring tongue (500), the first spring plate (300) and the second spring plate (500) of the compression spring (400), and the drive lever (600) for a three-position operating mode.
The spring system is also preferably designed such that, for a three-position operating mode, the spring system is tensioned in tension by means of the clamping lever of the first spring tongue, the second spring tongue, the first and second spring tongues of the compression spring and the drive lever, wherein the compression spring is compressed or can be compressed between the first and second spring tongues.
A further exemplary embodiment relates to a coupling for a drive system of a three-position switch, in particular for a medium-voltage installation, having the aforementioned two spring systems, which coupling can be controlled by means of a control device in such a way that a respective one of two different drive units acts on a drive shaft and can therefore carry out a predetermined switching process, wherein the two different drive units are formed by the two spring systems, namely a first spring system and a second spring system, wherein the coupling is formed by a first coupling part which is fixedly coupled or can be fixedly coupled to the drive shaft and a second coupling part which is movably connected to the first coupling part, wherein the second coupling part can be coupled to the respective one of the drive units. Wherein only one drive unit is connected to the second coupling part and the other drive unit is locked.
Preferably, these spring systems comprise or consist of compression springs and/or tension springs.
Furthermore, it is preferred that the coupling is designed such that it holds the respective switch position securely and fixedly.
It is also preferred that each switch position comprises: an on position, an off position, i.e. a disconnected position and a grounded position.
It is also preferred that the control means is a control lever.
Furthermore, a drive system is preferably provided, having a coupling according to the exemplary embodiment described above, which has a first coupling part and a second coupling part, and having two spring systems according to the exemplary embodiments described above, wherein the drive system further has:
-a control device for controlling the operation of the electronic device,
two different drive units acting on the drive shaft, wherein the drive units comprise a first spring system and a second spring system,
a first clamping lever connected with the first spring system and a second clamping lever connected with the second spring system,
-a first drive pin and a second drive pin,
a first pawl for the first spring system, a second pawl for the first spring system, a third pawl for the second spring system and a fourth pawl for the second spring system, wherein the first pawl and the second pawl are designed for fixing the first drive pin in the switching position and the third pawl and the fourth pawl are designed for fixing the second drive pin in the switching position.
Also preferred is a drive system, wherein the first spring system is connected at a coupling point to a first clamping lever for clamping the first spring system and the first clamping lever is pivotable about a pivot axis, and the second spring system is connected at a coupling point to a second clamping lever for clamping the second spring system and the second clamping lever is pivotable about a pivot axis and thereby forms a jump drive or a storage drive.
It is also preferred that the drive system is designed as a three-position switch for medium voltage installations, and that the drive shaft of the drive system is held during the clamping process by a pawl system consisting of a first pawl, a second pawl, a third pawl and a fourth pawl and can be released at the end of the clamping process.
It also preferably relates to a medium voltage switchgear having one or more drive systems for one or more three-position switches according to the above-described embodiments, wherein the drive system has at least one spring system according to the above-described embodiments and a coupling according to the above-described embodiments.
The embodiments are described below with reference to the accompanying drawings.
FIG. 1 shows a schematic view of a drive system having a spring system and a coupling according to the present invention;
FIG. 2 shows a schematic view of a coupling according to the present invention;
fig. 3 shows a schematic view of a coupling according to the invention in a position in which the grounding device is clamped;
fig. 4 shows a schematic illustration of a coupling according to the invention in a position in which the grounding device is switched on;
FIG. 5 shows a schematic view of a coupling according to the present invention in a position in which the decoupler is clamped;
fig. 6 shows a schematic illustration of a coupling according to the invention in the position in which the separator is switched on;
FIG. 7 shows a schematic view of a spring system according to the present invention;
FIG. 8 shows a schematic view of a spring system clamped by a clamping lever and a drive lever according to the invention;
fig. 9 shows a schematic view of a spring system according to the invention, clamped by a first spring tongue and a second spring tongue;
FIG. 10 shows a schematic view of a drive system according to the present invention with a spring system in the "off" position for a three-position mode of operation;
FIG. 11 shows a schematic view of a drive system according to the present invention with a spring system in the "on" or "ground" position for a three-position mode of operation;
FIG. 12 shows a schematic view of a drive system according to the invention with a spring system clamped under pressure for a three-position mode of operation;
fig. 13 shows a schematic representation of a drive system according to the invention with a spring system clamped in tension for three-position operation.
Fig. 1 shows a schematic representation of a drive system 10 according to the invention with a spring system 8, 9 and a coupling which is formed by a first coupling part 7 and a second coupling part 4. The first coupling part 7 is fixedly connected to a drive shaft 15 for the three-position switch. The second coupling part 4 is arranged movably about a rotational axis 40 of the second coupling part 4 and has a contour which mechanically couples the first drive pin 5 or the second drive pin 6 with the first coupling part 7, so that a switching operation is transmitted from the first spring group 8 or the second spring group 9 to the rotational axis 15. A first spring system 8 is connected with the first drive pin 6 and a second spring system 9 is connected with the second drive pin 5.
The first clamping lever 1 is connected to a first spring system 8 and the second clamping lever 2 is connected to a second spring system 9. The clamping levers 1, 2 serve to clamp the spring systems 8, 9, i.e. to introduce mechanical energy into the spring systems. The first pawl 25 and the second pawl 26 serve to fix the first drive pin 6 in the switching position. The third pawl 23 and the fourth pawl 24 serve to fix the second drive pin 5 in the switching position.
The control device 3 can be pivoted about the control device axis of rotation 30 and the control device 3 thus determines whether the second coupling part 4 couples the second drive pin 5 or the first drive pin 6 to the first coupling part 7. The control means 3 is moved by the first clamping lever 1 and/or the second clamping lever 2.
The first spring system 8 is connected at a coupling point 12 to a first clamping lever 1 for clamping the first spring system 8. The first clamping lever 1 can pivot about a pivot axis 11.
The second spring system 9 is connected at a coupling point 22 to a second clamping lever 2 for clamping the second spring system 9. The second clamping lever 2 can pivot about the book spindle 21.
In other words, the drive system 10 is here a typical step-change or storage drive, for example for a load disconnector of a medium-voltage installation with three switch positions "on", "off" and "grounded". The drive shaft 15 of the drive system is held during the clamping process by the pawl system formed by the first pawl 25, the second pawl 26, the third pawl 23 and the fourth pawl 24 and is released at the end either directly or by an additional trigger (not shown here). One component of the drive system is a coupling, which is formed by the second coupling part 4 (also a pivot lever) and the first coupling part 7 (also a coupling lever). The control of the coupling is effected by means of a control device 3 (here a control rod) and clamping rods, namely a first clamping rod 1 and a second clamping rod 2. In order to carry out the switching-on process, the first spring system 8 is clamped by the first clamping lever 1, or the second spring system 9 is clamped by the second clamping lever 2, during which the first drive pin 6 or the second drive pin 5 is held by the second pawl 26 or the third pawl 23. The control means 3 is actuated by the first clamping lever 1 or the second clamping lever 2, which then moves the second coupling part 4 in the coupling and surrounds the respective drive pin, i.e. the first drive pin 6 or the second drive pin 5. The corresponding spring system is therefore connected via the second coupling part 4 and the first coupling part 7 to the drive shaft 15 of the switching device, for example a three-position switch. When the first drive pin 6 or the second drive pin 5 is moved, the entire coupling, i.e. the second coupling part 4 and the first coupling part 7, moves together and is transmitted to the drive shaft 15 and thus to the switching device. During the switching process and in the "on" disconnector or "on" grounding device position, the second coupling part 4 is fixed by means of the respective further drive pin 5 or 6. If the spring system, i.e. the drive, is switched on, the respective further drive is locked by the control device 3.
During the disconnection process, the respective spring system 8 or 9 is clamped and the respective drive pin 5 or 6 is held by the fourth pawl 24 or the first pawl 25. If the respective drive pin 5 or 6 is released, it moves the first coupling part 7 and thus the drive shaft 15 and thus the switching device. If the drive is in the open position, the first coupling part 7 is held and fixed by the two drive pins 5 and 6, and therefore the drive shaft 15 and thus the switching device.
Fig. 2 shows a schematic illustration of a coupling according to the invention, which is formed from a first coupling part 7 and a second coupling part 4 and from drive pins 5, 6, a control device 3, a first clamping bar 1 and a second clamping bar 2. The first clamping lever 1 can be pivoted about a pivot axis 11 and, as a result, the first spring system 8, which is not shown here, can be clamped by means of a coupling point 12. The second clamping lever 2 can be pivoted about a pivot axis 21 and, as a result, the second spring system 9, which is not shown here, can be clamped by means of a coupling point 22. The control device 3 can be pivoted or rotated about a control device axis of rotation 30. The second coupling part 4 is mounted on the rotary shaft 40 so as to be pivotable relative to the first coupling part 7, wherein the movement of the second coupling part 4 is limited by an opening in the region of the drive shaft 15. In the illustration shown, the first drive pin 6 is connected to the first coupling part 7 and thus to the drive shaft 15 via the second coupling part 4.
Fig. 3 shows a schematic illustration of a coupling according to the invention in the position in which the grounding device is clamped, which coupling is formed by a first coupling part 7 and a second coupling part 4 as well as by the drive pins 5, 6, the control means 3, the first clamping bar 1 and the second clamping bar 2.
Fig. 4 shows a schematic illustration of the coupling according to the invention in the position in which the grounding device is switched on, which coupling is formed by the first coupling part 7 and the second coupling part 4 and the drive pins 5, 6, the control means 3, the first clamping bar 1 and the second clamping bar 2.
Fig. 5 shows a schematic illustration of the coupling according to the invention in the position in which the release element is clamped, which coupling is formed by the first coupling part 7 and the second coupling part 4 and the drive pins 5, 6, the control means 3, the first clamping bar 1 and the second clamping bar 2.
Fig. 6 shows a schematic illustration of the coupling according to the invention in the switched-on position of the disconnector, which coupling is formed by the first coupling part 7 and the second coupling part 4 as well as the drive pins 5, 6, the control means 3, the first clamping bar 1 and the second clamping bar 2.
Fig. 7 shows a schematic view of a spring system 9 according to the invention. The spring system 9 is used, for example, for a typical jump drive or a storage drive for a load disconnector of a medium-voltage installation with three switch positions "on", "off" and "earth" or 2 switch positions "off", "on" or "off", "earth". The drive shaft of the drive is held during the clamping process by a detent system, not shown here, and is released directly at the end or by an additional trigger. The components of the drive are a spring system which is formed by the clamping lever 100 of the first spring tongue 200, the second spring tongue 500, the optional first spring plate 300 and the optional second spring plate 500 of the compression spring 400, and the drive lever 600. The control and positioning of the switch position is effected by means of a pawl, not shown here, see fig. 10 to 13.
To carry out the switching-on process, the compression spring 400 is clamped by the clamping lever 100. During the clamping process, the drive lever 600 is held by a "break pawl" not shown here. The first spring tongue 200 and the second spring tongue 500 serve only as spring guides in this switching direction. If the switching process is ended, the "off-pawl" is released or can be released, the drive lever 600 is then free and is pressed into the switch end position by the pressure spring 400. If the drive lever 600 reaches the on position, the "on-pawl" is engaged and the switching process is ended.
During the disconnection process, the clamping lever 700 is pulled onto the first spring tongue 200, and the second spring tongue 500 is held by the drive lever 600, which is in turn blocked by the "on-pawl" not shown. Since the first spring tongue 200 and the second spring tongue 500 act on opposite sides of the respective clamping lever 100 and the drive lever 600 acts on the compression spring 400, the compression spring 400 is compressed despite the movement apart of the clamping lever 100 and the drive lever 600. If the clamping process is ended, the "on-pawl" is released or can be released, the drive rod 600 is then free and is pulled into the switch end position by the second spring tongue 500 and the compression spring 400. If the drive lever 600 reaches the "off position", the "off-pawl" is engaged and the switching process is ended.
This mode of action can also be changed so that the first spring tongue 200 and the second spring tongue 500 are pulled on when switched on and the clamping lever 100 and the drive lever 600 are pressed directly against the compression spring 400 when switched off. The switching from off to ground/from ground to off is done in the same order.
Fig. 8 shows a schematic view of a spring system clamped by the clamping lever 100 and the drive lever 600 according to the invention. The clamp lever 100 presses the drive lever 600 via the first disc spring 300, the pressure spring 400, and the second disc spring 301.
Fig. 9 shows a schematic illustration of a spring system 9 according to the invention, clamped by a first spring tongue 200 and a second spring tongue 500. The clamping lever 100 and the drive lever 600 move in opposite directions and now clamp the compression spring 400 between the first spring tongue 200 and the second spring tongue 500 via the first belleville spring 300 and the second belleville spring 301.
Fig. 10 shows a schematic view of the drive system according to the invention with the spring system 9 in the position "off" for the three-position operating mode.
The spring system 9 is used here, for example, for a typical jump drive or a storage drive for a load disconnector of a medium-voltage installation with three switch positions "on", "off" and "grounded". The drive shaft of the drive is held during the clamping process by the detent systems 701, 702, 703, 704 and is released at the end, either directly or by additional triggering. The component of the drive is a spring system 9, which is formed by the clamping lever 100 of the first spring tongue 200, the second spring tongue 500, the optional first spring leaf 300 and the optional second spring leaf 500 of the compression spring 400, and the drive lever 600 and/or a shaft passing through the drive lever 600. Subsequently, a shaft passing through the drive lever 600 is also disclosed along with the drive lever 600.
The control and positioning of the switch positions is achieved by the pawl systems 701, 702, 703, 704, in the position shown, the second 702 and fourth 704 spring pawls block the drive rod 600.
To carry out the switching-on process, the compression spring 400 is clamped by means of the clamping lever 100.
Fig. 11 shows a schematic illustration of the drive system according to the invention with the spring system 9 in the position "on" or "ground" for the three-position operating mode, with the clamping lever 100 of the first spring tongue 200, the second spring tongue 500, the optional first spring leaf 300 and the optional second spring leaf 500 of the compression spring 400, and the drive lever 600. The drive lever is thereby locked by the third spring pawl 703, and the clamping lever 100 is optionally locked by the first spring pawl 701.
Fig. 12 shows a schematic illustration of a drive system according to the invention with a spring system 9 for three-position operation with a clamping lever 100 of a first spring tongue 200, a second spring tongue 500, an optional first spring leaf 300 and an optional second spring leaf 500 of a compression spring 400, and a drive lever 600. The drive rod is thereby locked by the fourth spring pawl 704, and the compression spring 400 is compressed between the first spring tongue 200 and the second spring tongue 500.
Fig. 13 shows a schematic illustration of a drive system according to the invention with a spring system 9 clamped in tension for three-position operation, which has a clamping lever 100 of a first spring tongue 200, a second spring tongue 500, an optional first spring leaf 300 and an optional second spring leaf 500 of a compression spring 400, and an actuating lever 600. The drive rod is thereby locked by the third spring pawl 703, and the compression spring 400 is compressed between the first spring tongue 200 and the second spring tongue 500.
List of reference numerals
1 first clamping lever for a first spring system 8
2 second clamping lever for a second spring system 9
3 control device, control lever
4 second coupling part, pivoting lever
5 second drive pin
6 first driving pin
7 first coupling part, coupling rod
8 first spring system, spring group
9 second spring system, spring group
10 drive system
11 pivot axis of the first clamping lever 1
12 coupling point of the first clamping lever 1 to the first spring system 8
15 drive shaft for three-position switch
21 pivot axis of the second clamping lever 2
22 coupling point of the second clamping lever 2 to the second spring system 9
23 third pawl for the second spring system 9
24 fourth pawl for the second spring system 9
25 first pawl for the first spring system 8
26 second pawl for the first spring system 8
30 control device spindle of control device 3
40 shaft of the second coupling part 4
100 clamping bar
200 first spring tongue
300 first spring leaf
301 second spring plate
400 pressure spring
500 second spring tongue
600 drive rod or shaft passing through drive rod
701 first spring pawl
702 second spring pawl
703 third spring pawl
704 fourth spring pawl
Claims (14)
1. A spring system (9) having a compression spring (400), characterized in that the compression spring (400) operates as a pressure accumulator or tension accumulator by means of its installation and support, wherein the compression spring (400) is directly compressed, i.e. pretensioned, in one switching direction and is indirectly compressed, i.e. pretensioned, in the opposite switching direction by means of a first spring tongue (200) and a second spring tongue (500).
2. The spring system (9) according to claim 1, characterized in that the spring system (9) is composed of a clamping lever (100), a first spring tongue (200), a second spring tongue (500), a compression spring (400), a drive lever (600), a first spring leaf (300) and a second spring leaf (301).
3. Spring system (9) according to claim 2, characterized in that the spring system (9) is designed for a step drive or a stored energy drive of a load disconnector of a medium voltage installation, which has three switch positions "on", "off" and "earth" or two switch positions "off", "on" or "off", "earth".
4. Spring system (9) according to claim 2 or 3, characterised in that the spring system (9) has a drive rod (600) and a first, a second, a third and a fourth pawl (25, 26, 23, 24), namely a combined plurality of pawls (23, 24, 25, 26), wherein the pawls (23, 24, 25, 26) are designed for controlling and positioning switch positions by arranging the pawls (23, 24, 25, 26) such that they act differently on the drive rod (600) in different switch positions.
5. The spring system (9) according to claim 4, characterized in that the spring system (9) is designed to be clamped in a pressing manner for a three-position mode of operation by means of the clamping lever (100) of the first spring tongue (200), the second spring tongue (500), the first spring leaf (300) and the second spring leaf (500) of the compression spring (400) and the drive lever (600).
6. The spring system (9) according to claim 4 or 5, characterized in that the spring system (9) is designed to be tensioned in a tensile manner for a three-position mode of operation by means of the clamping lever (100) of the first spring tongue (200), the second spring tongue (500), the first spring leaf (300) and the second spring leaf (500) of the compression spring (400) and the drive lever (600), wherein the compression spring (400) is compressed or can be compressed between the first spring tongue (200) and the second spring tongue (500).
7. Coupling for a drive system (10) of a three-position switch, which coupling has a spring system (9) according to one of the preceding claims, characterized in that the coupling can be controlled by means of a control device (3) such that a respective one of two different drive units (8, 9) acts on a drive shaft (15) and can thus carry out a predetermined switching process, wherein the two different drive units (8, 9) are formed by two spring systems (8, 9), wherein the coupling is formed by a first coupling part (7) which is fixedly coupled or fixedly couplable to the drive shaft (15) and a second coupling part (4) which is movably connected to the first coupling part (7), wherein, the second coupling part (4) can be coupled to a respective one of the drive units (8, 9), i.e. one of the spring systems (8, 9), and only one drive unit (8, 9), i.e. one spring system (8, 9), is connected to the second coupling part (4) and the respective other drive unit (8, 9) is locked.
8. The coupling of claim 7, wherein the coupling is designed such that the coupling reliably holds the respective switch position.
9. The coupling of claim 7 or 8, wherein each switch position comprises: an on position, an off position, i.e. a disconnected position and a grounded position.
10. A coupling according to any one of claims 7 to 9, characterised in that the control means (3) is a control rod (3).
11. A drive system (10) having a coupling according to one of claims 7 to 9, having a first coupling part (7) and a second coupling part (4), characterized in that the drive system further has:
-a control device (3),
-two different drive units (8, 9) acting on a drive shaft (15), wherein the drive units (8, 9) comprise a first spring system (8) and a second spring system (9),
-a first clamping lever (1) connected to a first spring system (8) and a second clamping lever (2) connected to a second spring system (9),
-a first drive pin (6) and a second drive pin (5),
-a first pawl (25) for the first spring system (8), a second pawl (26) for the first spring system (8), a third pawl (23) for the second spring system (9) and a fourth pawl (24) for the second spring system (9),
wherein the first (25) and second (26) pawls are designed to fix the first drive pin (6) in a switched position, and the third (23) and fourth (24) pawls are designed to fix the second drive pin (5) in a switched position.
12. The drive system (10) according to claim 11, characterized in that the first spring system (8) is connected at a coupling point (12) with a first clamping lever (1) for clamping the first spring system (8), and the first clamping lever (1) is pivotable about a pivot axis (11), and the second spring system (9) is connected at a coupling point (22) with a second clamping lever (2) for clamping the second spring system (9), and the second clamping lever (2) is pivotable about a pivot axis (21), and thereby forms a jump drive or a stored energy drive.
13. The drive system (10) according to claim 12, characterised in that the drive system (10) is designed as a three-position switch for medium voltage installations, and in that the drive shaft (15) of the drive system (10) is held during the clamping process by a pawl system consisting of a first pawl (25), a second pawl (26), a third pawl (23) and a fourth pawl (24) and can be released at the end of the clamping process.
14. Medium voltage switchgear arrangement, characterized in that it has one or more drive systems (10) for one or more three-position switches according to any one of claims 11 to 13, wherein the drive system has at least one spring system (8, 9) according to any one of claims 1 to 6 and a coupling according to any one of claims 7 to 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019204465.4 | 2019-03-29 | ||
| DE102019204465 | 2019-03-29 | ||
| PCT/EP2020/058339 WO2020200951A1 (en) | 2019-03-29 | 2020-03-25 | Spring system for a drive system comprising a coupling, spring system comprising a coupling, drive system comprising a coupling and a spring system and switchgear comprising such a drive system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113748476A true CN113748476A (en) | 2021-12-03 |
| CN113748476B CN113748476B (en) | 2024-09-27 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080032198.5A Active CN113748476B (en) | 2019-03-29 | 2020-03-25 | Spring system, coupler, drive system and medium voltage switchgear |
| CN202080034972.6A Active CN113811970B (en) | 2019-03-29 | 2020-03-26 | Coupling, spring system, drive system and medium voltage device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080034972.6A Active CN113811970B (en) | 2019-03-29 | 2020-03-26 | Coupling, spring system, drive system and medium voltage device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3928340A1 (en) |
| CN (2) | CN113748476B (en) |
| WO (2) | WO2020200951A1 (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507641A (en) * | 1982-10-27 | 1985-03-26 | Siemens Aktiengesellschaft | Driving mechanism for a three-position electrical switch |
| EP0212427A1 (en) * | 1985-08-19 | 1987-03-04 | Siemens Aktiengesellschaft | Operating mechanism for an electric switch with three positions |
| EP0277851A1 (en) * | 1987-01-21 | 1988-08-10 | Merlin Gerin | Control mechanism with a latching device for a three-position circuit breaker |
| EP0448481A1 (en) * | 1990-03-22 | 1991-09-25 | Schneider Electric Sa | Operating mechanism for a switch with three positions |
| EP0593371A1 (en) * | 1992-10-13 | 1994-04-20 | Schneider Electric Sa | Operating mechanism for a switch with three positions |
| US20050150754A1 (en) * | 2004-01-12 | 2005-07-14 | Bahrudeen Sirajtheen | Method and apparatus for achieving three positions |
| WO2007016880A1 (en) * | 2005-08-10 | 2007-02-15 | Siemens Aktiengesellschaft | Circuit breaker |
| EP1993115A1 (en) * | 2007-05-15 | 2008-11-19 | Schneider Electric Industries SAS | Device for controlling the connection and disconnection of two parts and electrical appliance comprising such a device |
| CN101681731A (en) * | 2007-04-09 | 2010-03-24 | 阿斯科动力科技公司 | Three-position apparatus capable of positioning an electrical transfer switch |
| KR20110022967A (en) * | 2009-08-28 | 2011-03-08 | 주식회사 효성 | Operating device for switch |
| EP3182433A1 (en) * | 2015-12-18 | 2017-06-21 | Schneider Electric Industries SAS | Device for guiding a spring in a control mechanism and electrical protection apparatus including it |
| CN108766802A (en) * | 2018-07-27 | 2018-11-06 | 中骏电气（厦门）有限公司 | A kind of three station operating mechanisms |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3036670C2 (en) * | 1980-09-29 | 1982-07-01 | Siemens AG, 1000 Berlin und 8000 München | Drive for a medium voltage switch |
| DE4445081C1 (en) * | 1994-12-05 | 1996-04-11 | Siemens Ag | Three setting switch drive for medium voltage switchgear |
| DE102008026798B3 (en) * | 2008-06-02 | 2009-07-30 | Siemens Aktiengesellschaft | Drive system for electrical switching devices |
| CN106449318B (en) * | 2015-08-04 | 2019-05-24 | 浙江正泰电器股份有限公司 | Breaker tripping mechanism |
-
2020
- 2020-03-25 EP EP20718184.3A patent/EP3928340A1/en active Pending
- 2020-03-25 CN CN202080032198.5A patent/CN113748476B/en active Active
- 2020-03-25 WO PCT/EP2020/058339 patent/WO2020200951A1/en unknown
- 2020-03-26 CN CN202080034972.6A patent/CN113811970B/en active Active
- 2020-03-26 WO PCT/EP2020/058523 patent/WO2020201000A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507641A (en) * | 1982-10-27 | 1985-03-26 | Siemens Aktiengesellschaft | Driving mechanism for a three-position electrical switch |
| EP0212427A1 (en) * | 1985-08-19 | 1987-03-04 | Siemens Aktiengesellschaft | Operating mechanism for an electric switch with three positions |
| EP0277851A1 (en) * | 1987-01-21 | 1988-08-10 | Merlin Gerin | Control mechanism with a latching device for a three-position circuit breaker |
| EP0448481A1 (en) * | 1990-03-22 | 1991-09-25 | Schneider Electric Sa | Operating mechanism for a switch with three positions |
| EP0593371A1 (en) * | 1992-10-13 | 1994-04-20 | Schneider Electric Sa | Operating mechanism for a switch with three positions |
| US20050150754A1 (en) * | 2004-01-12 | 2005-07-14 | Bahrudeen Sirajtheen | Method and apparatus for achieving three positions |
| WO2007016880A1 (en) * | 2005-08-10 | 2007-02-15 | Siemens Aktiengesellschaft | Circuit breaker |
| CN101681731A (en) * | 2007-04-09 | 2010-03-24 | 阿斯科动力科技公司 | Three-position apparatus capable of positioning an electrical transfer switch |
| EP1993115A1 (en) * | 2007-05-15 | 2008-11-19 | Schneider Electric Industries SAS | Device for controlling the connection and disconnection of two parts and electrical appliance comprising such a device |
| KR20110022967A (en) * | 2009-08-28 | 2011-03-08 | 주식회사 효성 | Operating device for switch |
| EP3182433A1 (en) * | 2015-12-18 | 2017-06-21 | Schneider Electric Industries SAS | Device for guiding a spring in a control mechanism and electrical protection apparatus including it |
| CN108766802A (en) * | 2018-07-27 | 2018-11-06 | 中骏电气（厦门）有限公司 | A kind of three station operating mechanisms |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113811970B (en) | 2024-10-08 |
| EP3928340A1 (en) | 2021-12-29 |
| CN113748476B (en) | 2024-09-27 |
| WO2020200951A1 (en) | 2020-10-08 |
| CN113811970A (en) | 2021-12-17 |
| WO2020201000A1 (en) | 2020-10-08 |
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