RU2366021C1 - Power switch - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention relates to a power switch with at least one polar device, which contains a movable contact, a pivotally mounted double-arm lever for opening and closing the movable contact, switch-on energy accumulator, as well as a disc cam, which is connected to the switch-on energy accumulator and through a drive link to the first end of the lever, the second end of which is connected to the movable contact of the polar device, and at least one switch-off energy accumulator. The drive link is a pivotally mounted interrupter shaft which interacts with the disc cam and is connected to the first end of the double-arm lever through the switch-off energy accumulator.

EFFECT: simpler and more compact design.

25 cl, 13 dwg

Description

The invention relates to a circuit breaker with at least one pole device, which contains a movable contact, mounted by a rotary two-arm lever for opening and closing a movable contact, including an energy accumulator, as well as with a disk cam, which is connected to an energizing accumulator and through a drive link with the first end of the lever, the second end of the lever connected to the movable contact part of the pole device, and at least one turning off the power accumulator.

A similar circuit breaker is known from DE 4138333 C2. In this switch, the pivotally mounted two-arm lever comprises, at the first end facing the cam element / disc cam, a drive element in the form of a pivotally mounted roller that cooperates with the cam element, the cam element being driven by the energy stored in the spring element in as an energy accumulator. The movable contact relative to the fixed contact is movably located by means of the second end of the pivotally mounted two-shouldered lever between the open state and the closed state of the switch. The device of the spring element and the cam element is located swinging on the movable support device, and a locking device is provided for locking and releasing the movable support device. With a two-arm lever at its first end are connected the means of the switching-off energy accumulator, which during the switching-on process take energy which is used to turn off the circuit-breaker. Such a device has a complex and expensive design, since, for example, to open the movable contact, the support elements mounted for rotation must rotate with the cam elements located on them in order to allow separation of the contacts. Such a construction, in particular, occupies a particularly large volume.

An object of the present invention is to provide a circuit breaker of the kind mentioned at the beginning, which has a simple and compact design.

According to the invention, this problem is solved due to the fact that the drive link is controllable by a disk cam, rotatably mounted by a switching shaft, which is connected to the first end of the two shoulders of the lever through the switching off power accumulator. With this arrangement, the energy of the switching on energy accumulator is transmitted through the switching shaft as a drive link and turning off the energy accumulator to the lever for closing the movable contact, due to which a compact design is possible.

In a preferred embodiment in a multi-pole device, the switching shaft extends through the entire pole device and comprises, for each movable contact, a grip on which the first end of the corresponding switching-off power accumulator is pivotally located. It is preferable in the case of such a switching shaft that due to the corresponding capture in a multi-pole device, for example, a three-pole power switch, the energy of the switching power accumulator is transmitted through the switching shaft to the corresponding movable contact, so that the entire pole device has synchronous operation without complicated mounting for the transverse bar.

In a further embodiment of the invention, the switch-off power accumulator at the second end is pivotally connected to the first end of the two shoulders arm. The hinged arrangement of the power storage switch between the power shaft and the two-arm lever makes it possible that the power storage battery in its charged state is almost in a stretched position relative to the line between the axis of rotation of the power shaft and the second end of the power storage battery. Due to this, only a small torque is provided to the switching shaft, so that it can be fixed in a simple manner, and the torque provided by the switching-off energy accumulator is sufficient to disconnect the contacts when the switching on of the switching shaft is released.

In an expedient form for further development, the switch-off power accumulator comprises a spring element. Such a switch-off power accumulator with the arrangement according to the invention allows a simple tightening of the switch-off power accumulator during the switching process.

In a preferred embodiment, the energizing accumulator comprises a spring element, which at the first end rests on the housing parts and at the second end is connected through a lingering shaft to a disk cam. Such an arrangement, firstly, makes it possible to easily transfer the energy of the energizing accumulator by means of a disk cam to the lever, and secondly, energy can be supplied in a simple manner through a drive unit connected to the protracted shaft.

In a preferred embodiment, the energizing accumulator is fixed at the first end and at the second end is connected to the eccentric of the lingering device with which the reverse flow limiting means interact, and the means comprise a ratchet mechanism located at the first end of the energizing accumulator. Such a device is preferably simple, economical in terms of costs and at the same time has little wear, since the reverse movement of the power accumulator is limited or accordingly prevented solely by a ratchet mechanism located at the first end of the power accumulator.

In an expedient form for further development, the means comprise a guide part releasing the ratchet mechanism, by means of which the first end of the energizing accumulator is movably mounted on the fixed axis by means of an elongated hole made in the guiding part and which is connected to the second end of the energizing accumulator. In this arrangement, it is preferable that due to the second end of the energizing accumulator installed eccentrically and the guide part installed in the elongated hole, the path of the guide part relative to its free end during the start-up process is different from the path after the start-up process, so that with a ratchet mechanism, with one hand, the inclusion of the energy accumulator is tightened, and, on the other hand, the return stroke is limited.

In a preferred embodiment, the ratchet mechanism comprises a latch pivotally movable between the first and second position around the fixed axis, which is acted upon by the spring element. With such a latch, the ratchet mechanism may have a simple structure.

In a preferred embodiment, the fixed axis and the spring element are held on the fastener. With this arrangement, the latch by means of a spring element can easily swing around an axis between its first and second position.

In an expedient form of execution, a stop element is provided on the guide part, which interacts with the latch recess on the latch. By positioning the stop member on the guide part and interacting with the protracted recess, a simple opportunity is realized for deflecting the latch from its first to its second position.

In the following form of further development, the latch has a locking recess. During the reverse stroke of the energizing accumulator after the switching on process, the thrust element enters the recess of the locking device, so that the restriction of the reverse stroke is performed in a simple and effective way.

In a further preferred embodiment, in a tightening device for an energizing accumulator, the rotary shaft rotating by means of a drive wheel for tightening the energizing accumulator is rigidly connected to an eccentric and a disk cam and comprises a trigger, the drive wheel being connected to the protracted shaft through a clutch assembly and the clutch assembly is a ratchet . Due to such a ratchet device, a lingering device is created, which relative to its clutch assembly is preferably made simple and at the same time economical with respect to costs, since the ratchet device costs a relatively small number of structural elements. In this case, it is only due to the ratchet device that it is prevented that due to further action on the drive wheel after the tightening process, an incorrect load of the tightening device takes place.

In a preferred embodiment, the ratchet device comprises a latch rotatably mounted on the drive wheel, and a fixed stop element is provided for controlling the latch. Preferred in such a device is that it is only due to the rotary arrangement of the latch and the fixed stop element that it becomes possible to control the latch and thereby disengage the drive wheel from the clamping shaft.

In a preferred embodiment, the fixed stop element is positioned in such a way that, when the energizing accumulator is turned on, the latch releases the latch shaft. Such an arrangement offers a simple opportunity to disengage the draw shaft from the drive after the draw process with the included power accumulator tightened.

In another preferred embodiment, the ratchet device comprises a grip rigidly connected to the lagging shaft and interacting with the latch. The location of such a gripper is a simple and appropriate opportunity to link the drive wheel and the draw shaft with a latch to carry out the draw process.

The ratchet device relative to its free end can be guided in various ways, for example using a fixed guide. In a preferred form for further development, the ratchet device comprises a spring element. By providing a spring element, it is ensured that the latch is held in a position interacting with the gripper during the pulling process.

In a further preferred embodiment of the invention, a position pin is provided on the drive wheel. The provision of such a positioning pin advantageously limits the rotation of the pivotally mounted latch by the force transmitted by the spring element, thereby preventing the latch from wearing due to sliding movement on the lagging shaft during rotation to prepare the process of tightening the circuit breaker.

In a further preferred embodiment of the invention, a locking mechanism is provided for preventing the discharge of the energizing accumulator having a key switch, which in the unlocking position of the interlocking mechanism is connected via a geometric circuit to the discharge trigger for discharging the energizing accumulator, so that the switching movement acting on the key switch is introduced through the power transfer element into the discharge trigger device for discharging including a power storage element, wherein the force transmission element is connected to geometric locking interruption means which are capable of moving the locking mechanism to the locking position, in which the geometric circuit is eliminated, the key switch and the force transmission element in the unlocking position are movably directed in the general longitudinal direction, that the pushing movement of the key switch through the longitudinal movement of the force transmission element is introduced into the inclusive trigger th device, wherein the force transmission member is mounted oscillating so that in the locking position the direction of motion of the force transmission element is oriented at an angle to the push motion of the pushbutton, the interlocking means associated with interrupt driven shaft breaker and / or auxiliary switch.

Preferably, the force transmission member is not longitudinally guided, but by input of the rotational movement is reliably removed from the geometric circuit between the key switch and the discharge trigger. In addition, large forward movements are avoided, so that the locking mechanism is both reliable and compact.

In a preferred embodiment, the means for breaking the geometrical closure comprise an articulated lever pivotally connected to the fixed axis of rotation, which is connected to the return spring on the return support and, by means of the swinging lever, with a force transmission element on the connection support. According to this expedient form of further development, the movement for swinging the force transmission element is introduced through the crank lever, due to which a multifunctional and at the same time compact locking mechanism is provided.

According to a form suitable for this form of further development, the cranked lever is connected via the lever kinematics to the switching shaft of the auxiliary switch so that when the auxiliary switch is in the open position, the cranked lever is turned against the action of the tension of the return spring, and the force transmission element is moved from the unlocked position to the position blocking. Thus, the auxiliary switch can communicate with the locking mechanism so that when the auxiliary switch is in the open position, the discharge of the energizing accumulator and thereby the connection of the switch, which is, for example, a power switch, is made impossible. The connection between the power transmission element and the auxiliary switch occurs through appropriate lever kinematics and through the crank lever already described. In this case, the power transmission element is mechanically connected with the drive axis of the auxiliary switch. Undesired operation of a switch, such as a power switch, when the auxiliary switch is open, i.e. in the open position, which is made, for example, in the form of a disconnector, is thus eliminated.

According to a preferred form for the further development of the invention, the crank lever is connected via the lever kinematics to block the extension of the drawer so that if the switch on the drawer is moved out of the switching position, the crank lever is folded against the action of the tension of the return spring and the force transmission element is moved from the unlocked position to the locked position. According to this form of further development of the invention, lever kinematics is associated with locking of the drawer. The displacement of the switch on the drawer unit, however, has the same effect as in the case of air-insulated switches as a separate auxiliary switch, so that the displacement on the guide of the drawer is equated here to the opening of the contacts of the auxiliary switch and thereby to communication with the auxiliary switch. When the circuit breaker is displaced, for example, the contacts fixed to the switch are separated from the contacts that are mounted motionlessly on the switchgear. In this case, the switch by means of a sliding block is mounted movably in the switchgear.

According to a further expedient form of further development, the cranked lever has a leading finger that extends in the elongated hole of the actuating lever, the actuating lever at its end facing away from the elongated hole being fixed to the cam element of the switching shaft of the power switch, so that the cranked lever is turned in the switching position of the switching shaft elimination of the geometric circuit between the key switch and the discharge trigger device. According to this preferred form of further development, the cranked lever and thus the force transmission element may be associated with the position of the switching shaft of the power switch, so that the discharge of the power accumulator is made impossible if the switch contacts are already in the switching position. In this case, the circuit is switched on at idle, and the energy of the switching on energy accumulator no longer passes into the kinetic energy of switching mechanics. Switching mechanics due to these inclusions at idle, however, is subjected to heavy load. It goes without saying that it is also possible that the crank lever is connected both through the drive lever with the switching shaft of the switch or power switch, and through the appropriate lever kinematics with an auxiliary switch and / or disconnector or, however, with the locking of the drawer block. In this case, the concept of a disconnector also covers a plurality of individual disconnectors connected in series. The elongated hole of the drive lever serves to mechanically disconnect the lock, which is caused by the auxiliary switch, and the lock, which is caused by the contact position of the switching shaft.

In an expedient form of execution, the locking mechanism, which is switchable between the locking position, in which the activation of the switching process when contacting the contacts of the circuit breaker is prevented, and the unlocking position, in which the activation of the switching process is made possible, is associated with the indicator of readiness for switching on, and the indicator of readiness for switching on located on the circuit breaker with the possibility of visual perception. Due to the ready-to-turn-on indicator directly on the power switch, maintenance personnel can read the status of the power switch directly on the power switch. Until now, such an indication of readiness has been carried out on the drawer of the circuit breaker with the drawback that the status of the circuit breaker was only interrogated through the drawer of the circuit breaker. It is also preferable that additional mechanics for the indicator on the drawer unit of the circuit breaker are eliminated.

In a preferred embodiment, the ready-to-turn-on indicator is mechanical. Such a mechanical indicator of readiness for inclusion is easily connected with the locking mechanism.

In a further preferred embodiment, the ready-to-turn-on indicator is implemented optically. The optical indicator of readiness for inclusion is the preferred option for visual perception of the status of the circuit breaker.

The invention is hereinafter described in more detail based on exemplary embodiments with reference to the Figures of the drawing.

At the same time, they show:

Figure 1 is a schematic representation of a circuit breaker according to the invention in a first position;

Figure 2 is a schematic representation of a circuit breaker according to the invention in a second position;

Figure 3 is a schematic representation of a device including an energy accumulator in a first position;

Figure 4 is a schematic representation of a device including an energy accumulator in a second position;

Figure 5 is a schematic representation of a device including an energy accumulator in a third position;

Figure 6 is a schematic representation of a device including an energy accumulator in a fourth position;

Figure 7 is a schematic representation of a device including an energy accumulator in a fifth position;

Figure 8 is a schematic side view of a puffer device;

Figure 9 is a front view of the tightening device of Figure 8 in a first position during the tightening process;

Figure 10 is a front view of a lingering device in a second position;

Figure 11 - shows a schematic representation of an example implementation of the locking mechanism in the unlocked position;

Figure 12 is a locking mechanism according to Figure 11 in the locked position; and

Figure 13 is a locking mechanism according to Figure 11 in the following locking position.

Figure 1 shows a schematic representation of a power switch 1 according to the invention. A power switch 1 comprises a power accumulator 2, which is located on a fastener 3 of a power switch 1. The power accumulator 2 is connected by a swivel on an eccentric 4 through a cam shaft 5 to a disk cam 6. Disk cam 6 is mounted pivotally about the axis of rotation and lies with its outer surface 8 on the cam element 9 of the drive shaft 10. The drive shaft 10 is mounted pivotally around the axis of rotation and contains a second grip 12, which is pivotally connected to the first end 13 of the power switch 14. The second end 15 of the power switch 14 is connected to a two-arm lever 17, at the first end of which 18 the power switch 14 is pivotally connected, and which is mounted movably around the axis of rotation 19. The second end 20 of the two shoulders of the lever 17 is pivotally connected to the pole device 21. The pole device 21 contains a first movable contact 22, which is pivotally connected to the second end 20 of the two shoulders of the lever and 17, as well as the second contact 23, which is stationary.

In Figure 1, the power switch 1 is shown in the off position. The energizing accumulator 2 is in a position in which energy is stored to cause a switching process. In this position of the power accumulator 2, the disk cam 6 is adjacent to the cam element 9 of the drive shaft 10, and the power accumulator 14 is discharged and the two-arm lever 17 is in a position in which the first contact part 22 is separated from the second contact 23.

Figure 2 shows a circuit breaker in a closed switching position in which the first contact 22 and the second contact 23 are in connection with each other. Due to the triggering of an unrepresented trigger, the power accumulator 2 transmits energy through the eccentric 4 and the clamping shaft 5 to the disk cam 6, which rotates counterclockwise around the axis of rotation 7. When the disk 6 is rotated through the cam element 9, the switching shaft 10 is driven to rotation in a counterclockwise direction around its axis of rotation 11. Rotation of the engaging shaft 10 causes the gripper 12 to move counterclockwise, thereby hinging coupled to the energy accumulator 14 disables the double-arm lever 17 is also rotated in a counterclockwise direction around its axis of rotation 19. In this case, the first end 18 of the double-armed lever 17 is shifted downward, while the second end 20 of - up. Due to this movement, the first contact part 22 is pressed against the second contact part 23, the contact of the pole mechanism 21 is closed. In addition, when the capture 12 is turned off, the power accumulator 14 is stressed. Figure 2 shows the position of the turned on power switch 1, in which the kinematic chain of the turning shaft 10 and turning off the power accumulator 14 is fixed almost in the tensile position, that is, the axis from the first end 13 of the turning off the power accumulator 14 to the second end 15 of the turning off the power accumulator 14 is at an angle of almost 180 ° relative to the axis from the capture 12 to the axis of rotation 11 of the including shaft 10.

Due to the location of the kinematic chain from the switching shaft 10 and the turning-off power accumulator 14 almost in the tension position, only the small torque created by the turning-off power accumulator 14 acts on the turning shaft 10, so that the shaft can be fixed using a simple, unrepresented ratchet mechanism in the position shown in the Figure 2.

When the switching shaft 10 is fixed by means of a drive device, which is connected via a transmission to the clamping shaft 5 and thereby to the disk cam 6 and the turning on energy accumulator 2, a repeated tightening process can be carried out for the turning on energy accumulator 2. By means of the drive, the disk cam 6 causes further rotation in counterclockwise, with the outer surface 8 of the disk cam 6 no longer in contact with the cam element 9 of the drive shaft 10. The drive shaft 10, which is fixed by means of a ratchet mechanism, remains in the position of Figure 2, so that the contact parts 22 and 23 remain in contact with each other. The drive through the connection 5 simultaneously causes the tightening of the power accumulator 2.

If the ratchet mechanism for fixing the switching shaft is disengaged, the torque created by the turning-off power accumulator 14 is sufficient to rotate the turning shaft 10, which is not in contact with the disk cam 6, in a clockwise direction around its axis of rotation 11, and due to the tension force the spring of the shutting down energy accumulator causes the rotation of the two shoulders lever 17 in a clockwise direction and the first contact part 22 is separated from the second contact part 23. The power switch 1 again hoditsya in position as shown in Figure 1, with the energy accumulator tightened comprising 2 and open contacts 22, 23.

Figure 3 shows a device including a power accumulator with a spring element 2 as a power accumulator 2, which is connected to the fastener 3 at the first end 24 by means of a ratchet device 25 and pivotally connected to the cam 4 at the second end 27. An eccentric 4 and a disk cam 6 are located rigidly on the tightening shaft 5. A guide part 28 with an elongated hole 29 and a stop element 30 is guided through the first end 24 of the power accumulator 2. The guide part 28 is rigidly connected to the second the core 27 and through the axis 31, which passes through the elongated hole 29, is mounted on the fastener 3. The ratchet device 25 also includes a latch 32 mounted rotatably on the axis 31, as well as a spring 33, which is mounted on its first end 34 on the latch 32, and at its second end 35, on the fastener 3. The shown dashed line 38 corresponds to the path of the second end 27 and the shown dashed line 39 corresponds to the path of the stop element 30 during switching or, accordingly, tightening power accumulator. The trajectory of motion 39 as a result of the kinematic arrangement of the system is characterized by the fact that when the thrust element 30 moves from the top to bottom dead center of the energizing accumulator, a different trajectory is described than in the opposite movement, due to which it becomes possible to engage with the latch 32.

In Figure 3, the energizing accumulator is in a tightened state, wherein the spring element is under compression stress. The second end 27 is located at the top of the return point of its path 38, the stop element 30 is located near the top of the bend of its path 39, and the axis 31 is at the lower stop of the elongated hole 29 of the guide piece 28. The latch 32 is held in the first position due to the spring tension 33.

If the switching process is triggered, the energy accumulated in the switching on accumulator 2 is transmitted through the eccentric 4 and the tightening shaft 5 to the disk cam 6 and thereby to the turning shaft 10. The second end 27 moves along the line 38 in a counterclockwise direction and the stop element 30 on line 39 in a clockwise direction.

Figure 4 shows the inclusion of the energy accumulator 2 with a ratchet mechanism in position immediately after the initiation of the switching process, and including the energy accumulator 2 is partially discharged. The energy of the energizing accumulator 2 leads to the rotation of the disk cam 6 through the lagging shaft 5 and thereby to the movement of the engaging shaft 10. The second end 27 is in the 9-o'clock position on line 38, while the thrust element 30 has shifted downward on line 39. The axis 31 is located relative to the elongated hole 29 due to the movement of the guide piece 28 connected to the second end 27 in a position close to the second end of the elongated hole 29.

Figure 5 shows the energizing accumulator 2 in a fully discharged state, in which the second end 27 and the stop element 30 reach the lower return points of the corresponding lines 38 and 39. In this position, the axis 31 is at the upper end of the elongated hole 29. The stop element 30 is adjacent to the latch 32 in the protracted recess 36. In this position, the stop element 30 begins to move the pivotally located latch 32 against the tension force of the spring 33 from the fastener 3, and the spring 33 is tightened.

Figure 6 shows the position of the energizing accumulator 2 and the ratchet mechanism immediately after the switching process of the power switch. The disk cam 6 is not in contact with the turning shaft 10, including the shaft 10 and thereby the contacts of the power switch are in the locked and on position. By means of energy including an energy accumulator 2, partially converted into kinetic energy during the switching process, the disk cam 6 and the eccentric 4 rotate further beyond their return points, the guide part 28 moving upward and the stop element 30 leaving the protruding recess 36 of the latch 32. At this moment, the latch 32 under the action of the tension force of the spring 33 moves back to its first position. Due to the further rotation of the eccentric 4, the inclusion of the energy accumulator 2 is partially delayed, as a result of which the inclusion of the energy accumulator 2 performs a reverse motion. This reverse motion is limited by the latch 32 returned by the spring 33 to its first position, as explained with reference to Figure 7.

Figure 7 shows the position of the energizing accumulator 2 and the ratchet mechanism after the switching process of the power switch with a fixed stop element 30. The stop element 30 engages in a locking recess 37 of the latch 32 and is fixed. Due to this fixation, a further return stroke of the energizing accumulator 2 is reliably prevented. Thereby, the power switch can be immediately turned off again and a new tightening process is performed for the energizing accumulator.

Figure 8 shows a draw-out device according to the invention for including an energy accumulator 2 in a schematic side view. The device comprises a tightening shaft 5, on the first end 40 of which an eccentric 4 is located. At the second end 41 of the tightening shaft 5, the disk cam 6 is rigidly connected to the tightening shaft 5. On the housing part 42 of the tightening device, which is rotatably mounted using ball bearings 42a, 42b, the tightening shaft 5, the stop element 43 is fixedly mounted. The gripping 44 is fixedly connected to the tightening shaft 5, which interacts through the latch 45 with the drive wheel 46. The latch 45 is rotatably located by means of the spring element 47 I on the drive wheel 46. The drive wheel 46 is the last unrepresented drive wheel transmission, for example a worm gear which is actuated by a manual crank or motor drive. The power accumulator 2 is pivotally located at the eccentric 4. The trigger stop 49 is provided as a stop for the retraction device after the tightening process, and the trigger stop can be disengaged using the mechanism described in Figures 11-13, so that when the closing power accumulator 2 is tightened, the switching process of the power switch .

Figure 9 shows a front view of a draw-off device according to the invention in position during a draw-in process involving an energy accumulator. The latch 45 at its end 50 through the contact surface 51 is in contact with the grip 44. At the end 50 of the latch 45 an emphasis 52 is made, which abuts the position pin 53 on the drive wheel 46. Due to the drive wheel 46 being rotated through the drive, the gripper 44, the latch 45, the tightening shaft 5, and thereby the eccentric 4, are rotated in a clockwise direction. Due to this, the closing power accumulator 2, mounted on the eccentric 4, is tightened. In the image of Figure 9, the eccentric 4 is in the position in which the turning power accumulator 2 is at its maximum compression spring voltage. To create the torque necessary to cause the switching process, the eccentric 4 must turn further to a position deviating from this maximum tensile position by several degrees.

The figure 10 shows the position of the latch 45 after a fully completed tightening process of the power accumulator 2. When the drive wheel 46 is rotated clockwise, the latch 45 is brought into contact with the stop element 43, thereby causing the rotation of the latch 45 around the axis 48 in a counterclockwise direction arrows, so that the contact surface 51 is no longer adjacent to the grip 44, and the latch is retracted from the grip 44. The draw shaft 5 in this position is disengaged from the drive wheel 46 and thereby from drive. Due to the further rotation of the drive wheel 46, there is no longer any force on the disk cam or cam.

In the process of switching on, the trigger stop 49 is released, so that the energy stored in the switching on power accumulator 2 is used to rotate the disk cam 6 connected to the long shaft 5 and thereby to close the movable contact of the power switch. At the same time, the tightening shaft 5 and the parts connected to it rotate in the direction of the arrow 54 of Figure 10, until the power accumulator 2 is completely relaxed. In this case, the drive wheel 46 with the latch 45 remains in the position of Figure 10. Due to this, during the switching process, no energy is transferred to the drive wheel and the drive. If, after the switching process, a new clamping process is performed, the drive wheel 46 through the drive moves in the same direction in the direction of the arrow 54. The latch deviates further on the stop element 43 and moves along it until the latch 45 is again due to the rotation of the drive wheel 46 in contact with the stop element 46 and will rotate due to the force exerted by the spring element 47 in the direction of the pressure shaft 5 until the latch 45 is adjacent to the position pin 53. Due to the position pin 53 is prevented that the latch 45 during a further rotation movement of the drive wheel 46 is adjacent to the draw shaft 5. Due to the further movement of rotation, the latch 45 comes into contact with the grip 44, so that the drive wheel 46 and the draw shaft 5 are again connected, and the power accumulator 2 is again tightened.

Figure 11 shows an example implementation of the locking mechanism 55 in a schematic representation. The locking mechanism 55 includes a key switch 56, which with its pin extension 57 is adjacent to the energy transfer element 58. The energy transfer element 58 has a guide frame 59, in which the biasing element 60 is movably directed in the linear direction of motion. The guide frame 59 is mounted movably around a fixed rotary support 61 and is connected to a support 62 with a swing arm 63.

The force transfer member 58 lies in the unlocking position shown in FIG. 11 with its longitudinally movable biasing element on the discharge trigger device 64, which when actuated, that is, when pushing movement in the direction shown by the arrow in the discharge trigger device 64, releases the lock not shown the figures comprising the energy accumulator 2, thereby releasing the trigger stop 49 described with reference to Figure 8, so including the energy accumulator 2 is discharged.

The closing power accumulator 2 in the shown embodiment is mechanically connected to the drive shaft 10 of the circuit breaker from Figure 1. Entering rotational motion into the turning shaft 10 translates the contacts of the circuit breaker from the switching position, in which the switching contacts of the circuit breaker are adjacent to each other, in the open position, in which the contacts of the switch are separated from each other, or from the open position to the contact position, as already described with reference to Figures 1 and 2.

The drive shaft 10 is pivotally connected on the cam element 9 on the support 66 to the drive swing arm 67. The drive swing lever 67 has at its end facing away from the support 66 an elongated hole 68 into which the driving pin 69 of the crank lever 70 which is movable around stationary rotary support 71. The crank lever 70 is pivotally connected on its support 72 to the swing arm 63. On the support 73 of the return spring, the crank lever 70 is further connected to the return spring 74, which in the shown position holds the leading pin 69 olenchatogo lever 70 at the upper end of the elongated hole 68. The upper limit of the oblong hole 68 thus forms some sort of abutment.

Figure 12 shows the interlock mechanism according to Figure 11 in the interlock position, in which the circuit breaker is shifted on the drawer when disconnecting the contacts of the disconnector. In contrast, the crank arm 70 is coupled to a drive shaft of a separate disconnector or auxiliary switch not shown. It goes without saying that also both options are together implemented within the framework of the invention.

Introduced, for example, to move the switch on the guide of the drawer, the necessary movement is introduced through the lever mechanics not shown in Figure 12 into the crank lever 70, which then moves in the direction shown by arrow 75. The lever mechanics is connected, for example, to the support 76 of the crank lever 70 Due to the connection of the cranked lever 70 with the force transmission element 58 through the swinging lever 63, the force transmission element 58 rotates in the direction shown by arrow 77. The direction of movement of the shifting element 60 the power transmission element 58 is thereby oriented at an angle to the direction of movement of the key switch 56, in which the pin extension 57 of the key switch 56 is held. Thus, the movement of the key switch 56 can no longer be transmitted to the discharge trigger device 64, so that the discharge of the power accumulator 2 is impossible.

Figure 13 shows the locking mechanism according to Figure 11 in the next unlocking position, and the unlocking position was achieved by the movement of the drive shaft 10. The rotation of the drive shaft 10 causes the disk cam 9 to rotate in the direction shown by arrow 78, and thereby shift the drive swing arm 67 down . The driving finger 69 of the crank arm 70, which enters the elongated hole 68 of the drive swing arm 67, also moves downward, so that the crank arm 70 rotates in the direction shown by arrow 79. Due to the lever connection 63 between the guide frame 59 and the crank lever 70 the power transmission 58 is also rotated in the direction of arrow 77. By rotating the drive shaft 10, not only have the switching contacts of the switch poles been achieved, but also, in addition, the locking position of the mechanism Lock, in which discharge not illustrated comprising energy storage 2 is prevented by the action of the pushbutton 56.

The turn-on indicator not shown in the Figures can be located on the locking mechanism 55, for example, on the guide frame 58. By connecting such an indicator unit to the guide frame 58, due to the different positions of the guide frame 58, the state of the circuit breaker can be directly indicated.

Reference List

1 power switch

2 switching on accumulator

3 fastener

4 cam

5 tightening shaft

6 disc cam

7 axis of rotation

8 outer surface

9 cam element

10 switching shaft

11 axis of rotation

12 capture

13 first end

14 shutdown power accumulator

15 second end

16 control mechanism

17 two shoulders lever

18 first end

19 axis of rotation

20 second end

21 pole gear

22 first contact

23 second contact

24 first end of the power accumulator

25 ratchet device

27 second end

28 guide piece

29 elongated hole

30 thrust element

31 axis

32 latch

33 spring

34 first end of spring

35 second end of spring

36 long notch

37 seizure recess

38 trajectory of the second end

39 path of the thrust element

40 first end

41 second end

42 case detail

43 fixed stop element

44 capture

45 latch

46 drive wheel

47 spring element

48 axis

49 trigger

50 end latch

51 contact surface

52 emphasis

53 position pin

54 arrow

55 locking mechanism

56 key switch

57 pin extension

58 power transmission element

59 guide frame

60 shift element

61 pivot bearing

62 pylon

63 rocker arm

64 discharge descent

66 pillar

67 drive swing arm

68 elongated hole

69 leading finger

70 crank

71 swivel bearing

72 support

73 spring support

74 return spring

75 arrow

76 prop

77 arrow

78 arrow

79 arrow

Claims (25)

1. Power switch (1) with at least one pole device (21), which contains a movable contact (22), a rotary mounted two-arm lever (17) for opening and closing the movable contact (22), including an energy accumulator (2), and also with a disk cam (6), which is connected to a power accumulator (2) and through a drive link (10) to the first end (18) of the lever (17), the second end (20) of the lever (17) connected to the movable contact part (22) of a pole device (21), and at least one switching-off power accumulator (14), exl. characterized in that the drive link is controllable by a disk cam (6), rotatably mounted by a switching shaft (10), which is connected to the first end (18) of the two shoulders of the lever (17) through an off energy accumulator (14). 2. The power switch according to claim 1, characterized in that in the multipolar pole device, the switching shaft (10) extends through the entire pole device (21) and for each movable contact contains a grip (12) on which the first end (13) is pivotally located corresponding shut-down power accumulator (14). 3. The power switch according to claim 2, characterized in that the switch-off power accumulator (14) at the second end (15) is pivotally connected to the first end (13) of the two-shouldered lever (17). 4. The power switch according to claim 3, characterized in that the switch-off power accumulator (14) comprises a spring element. 5. A power switch according to any one of claims 1 to 4, characterized in that the power accumulator (2) includes a spring element, which at the first end rests on the housing parts (3) and at the second end is connected to a disk through a lingering shaft (5) cam (6). 6. The power switch according to claim 1, characterized in that the power accumulator (2) is fixed at the first end (24) and at the second end is connected to the eccentric (4) of the lingering device, with which means restricting the return stroke and means (25) , 28, 31, 32, 33) contain a ratchet mechanism (25) located at the first end (24) of the energizing accumulator (2). 7. The power switch according to claim 6, characterized in that the means (25, 28, 31, 32, 33) comprise a guide part (28) that releases the ratchet mechanism (25), of which the first end (24) of the power accumulator (2) is movable mounted on a fixed axis (31) by means of an elongated hole (29) made in the guide part (28), and which is connected to the second end (27) of the power accumulator (2). 8. The power switch according to claim 7, characterized in that the ratchet mechanism (25) comprises a latch (32) pivotally movable around a fixed axis (31) between the first and second position, which is acted upon by a spring element (33). 9. The power switch according to claim 8, characterized in that the fixed axis (31) and the spring element (33) are held on the fastening element (3). 10. The power switch according to claim 9, characterized in that on the guide part (28) there is a stop element (30) that interacts with the protruding recess (36) on the latch (32). 11. The power switch according to claim 10, characterized in that the latch (32) has a locking recess (37). 12. The power switch according to claim 6, characterized in that in the tightening device for including the energy accumulator (2), the tightening shaft (5) rotated by means of the drive wheel (46) for tightening the closing energy accumulator (2) is respectively rigidly connected to the eccentric (4) and with a disk cam (6), which contains a trigger stop (49), and in which the drive wheel (46) is connected through a clutch assembly (43, 44, 45, 47, 48, 53) with a latching shaft (5), and the assembly the clutch (43, 44, 45, 47, 48, 53) is a ratchet device (43, 44, 45, 47, 48, 53). 13. The power switch according to claim 12, characterized in that the ratchet device (43, 44, 45, 47, 48, 53) comprises a latch (45) arranged to rotate on the water wheel (46) and for controlling the latch (45) ) a fixed stop element (43) is provided. 14. The power switch according to claim 13, characterized in that the stationary stop element (43) is located in such a way that when the closing power accumulator (2) is tightened, the latch (45) releases the clamping shaft (5). 15. A power switch according to claim 14, characterized in that the ratchet device (43, 44, 45, 47, 48, 53) comprises a grip (44) rigidly connected to the lagging shaft (5) and interacting with the latch (45). 16. The power switch according to claim 15, characterized in that the ratchet device (43, 44, 45, 47, 48, 53) comprises a spring element (47). 17. A power switch according to claim 16, characterized in that a position pin (53) is provided on the drive wheel (46). 18. A power switch according to claim 12, characterized in that a locking mechanism (55) is provided for preventing the discharge of the energizing accumulator with a key switch (56), which in the unlocking position of the locking mechanism (55) is connected through a geometric transmission element (58) a circuit with a discharge trigger (64) for discharging a power accumulator (2), so that the movement acting on the key switch (56) is inputted through a force transfer member (58) into the discharge trigger a (64) for discharging the energizing accumulator (2), wherein the force transmission element (58) is connected to means for interrupting the geometric circuit (63, 70), which are arranged to translate the locking mechanism (55) into the locking position in which the geometric circuit is removed moreover, the key switch (56) and the power transmission element (58) in the unlocked position are movably directed in the general longitudinal direction, so that the pushing movement of the key switch (56) through the longitudinal movement of the force transmission element (58) is inserted into the trigger (64), and the force transmission element (58) is set to swing so that in the locked position the direction of movement of the force transmission element (58) is oriented at an angle to the pushing movement of the key switch (56), and the means of interrupting the geometric circuit (63, 70) are connected to the switching shaft (10) of the power switch and / or to the auxiliary switch. 19. A power switch according to claim 18, characterized in that the means for breaking the geometric circuit comprise an articulated lever (70) pivotally mounted on a fixed axis of rotation, which is connected to the return spring (74) on the support of the return spring (73) and by means of the swing lever ( 63) with a power transmission element on the connecting support (72). 20. A power switch according to claim 19, characterized in that the crank lever (70) is connected by means of lever kinematics to the switching shaft of the auxiliary switch so that when the auxiliary switch is in the open position, the crank lever (70) is turned against the action of the tension of the return springs (74), and the force transmission member (4) is moved from the unlocked position to the locked position. 21. A power switch according to claim 19, characterized in that the crank lever (70) is connected via the lever kinematics to the extension lock of the drawer so that when the switch is shifted on the drawer, the crank lever is turned against the action of the tension of the return spring (74) and the force transfer member (58) is moved from the unlocked position to the locked position. 22. The power switch according to claim 19, characterized in that the cranked lever (70) has a driving finger (69), which extends in the elongated hole (68) of the drive lever (67), and the drive lever (67) is facing away from the extended the hole (68) end is fixed to the cam element (9) of the drive shaft (10), so that in the switch-on position of the drive shaft (10), the crank lever (70) is rotated while removing the geometric circuit between the key switch (56) and the discharge trigger (64) ) 23. The power switch according to claim 18, characterized in that the interlock mechanism, which is switchable between the interlock position, in which the activation of the switching process by contacting the contacts of the power switch is prevented, and the unlocking position, in which the activation of the switching process is possibly connected with the ready indicator to turn on and that the indicator of readiness for turning on is located on the switch with the possibility of visual perception. 24. The switch according to item 23, wherein the indicator of readiness for inclusion is mechanical. 25. The switch according to item 23, wherein the indicator of readiness for inclusion is implemented optical.

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