CN220085913U

CN220085913U - DC isolating switch

Info

Publication number: CN220085913U
Application number: CN202321578648.8U
Authority: CN
Inventors: 季雪峰; 庄秧秧; 吴凯佳
Original assignee: Schneider Electric Industries SAS
Current assignee: Schneider Electric Industries SAS
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-11-24
Anticipated expiration: 2033-06-19

Abstract

Embodiments of the present disclosure provide a direct current isolation switch. The direct current isolating switch comprises an operating mechanism, wherein the operating mechanism comprises an operating handle and a first rotating shaft, and the operating handle is arranged on the first rotating shaft and rotates around the first rotating shaft; and a cam including a main body portion and a second rotation shaft, the main body portion being provided on the second rotation shaft and being rotatable about the second rotation shaft, a side of the main body portion facing the operating mechanism being provided with an arc-shaped groove, a portion of the first rotation shaft being provided in the arc-shaped groove, and a different portion of a groove wall of the arc-shaped groove contacting the first rotation shaft with the main body portion rotating about the second rotation shaft.

Description

DC isolating switch

Technical Field

Embodiments of the present disclosure relate generally to the field of electrical equipment technology, and more particularly, to a direct current isolation switch.

Background

The current market has high demands for small-volume, high-voltage direct current isolating switches. When the dc disconnecting switch is switched from the closed state to the open state, an arc is generated in the gap between the contacts. The conventional direct current isolating switch drives the moving contact and the fixed contact to separate by the energy released by the elastic piece, so that the arc is transferred to be extinguished. Therefore, in order to meet the requirement of rapidly extinguishing the arc, the elasticity of the elastic member is generally set to be large. But the cam can be driven to collide with the main body mechanism by larger impact force due to larger elasticity, and the phenomenon of deflection caused by uneven stress of the cam can be caused by the reverse impact force of the main body mechanism on the cam, so that the cam shaft is easy to break, and the service life of the direct current isolating switch is influenced.

Disclosure of Invention

It is an object of the present disclosure to provide a dc disconnector to at least partially solve the above-mentioned problems.

The present disclosure provides a direct current isolating switch including an operating mechanism including an operating handle and a first rotation shaft, the operating handle being disposed on the first rotation shaft and rotating around the first rotation shaft; and a cam including a main body portion and a second rotation shaft, the main body portion being provided on the second rotation shaft and being rotatable about the second rotation shaft, a side of the main body portion facing the operating mechanism being provided with an arc-shaped groove, a portion of the first rotation shaft being provided in the arc-shaped groove, and a different portion of a groove wall of the arc-shaped groove contacting the first rotation shaft with the main body portion rotating about the second rotation shaft.

For the direct current isolating switch, under the condition that an arc needs to be extinguished quickly, the main body mechanism can generate reverse impact force on the cam, and the phenomenon that the cam is unevenly stressed and offset occurs can be caused. In the embodiment according to the present disclosure, since different portions of the groove wall of the arc-shaped groove contact the first rotation shaft in the case where the main body portion rotates around the second rotation shaft, the first rotation shaft shares a part of the back impact force received by the cam, and the back impact force borne on the second rotation shaft is reduced, thereby preventing the second rotation shaft from being broken, and increasing the service life of the dc isolating switch. Therefore, the direct current isolating switch can solve the problem that the second rotating shaft is easy to break due to the fact that an arc needs to be extinguished quickly.

In some embodiments, the operating mechanism further comprises an actuating shaft provided on the operating handle and capable of rotating together with the operating handle, and an actuating groove is further provided on a side of the main body facing the operating mechanism, the actuating shaft being capable of moving in the actuating groove and contacting a groove wall of the actuating groove to push the main body to rotate around the second rotation axis.

In some embodiments, the arcuate slot includes a first end, a second end, and a flag position between the first end and the second end, wherein the dc isolating switch switches from a closed state to an open state upon rotation of the body portion about the second axis of rotation to switch the first axis of rotation from adjacent the first end to adjacent the flag position.

In some embodiments, the direct current isolating switch further comprises a moving contact and a driving piece connected with the moving contact, a driving groove matched with the driving piece is formed in one side, away from the operating mechanism, of the cam, and the driving piece is arranged in the driving groove.

In some embodiments, a first limiting member is disposed on an outer sidewall of the driving member, the dc isolating switch further includes a second limiting member, wherein a gap exists between the first limiting member and the second limiting member in a case where the first rotation shaft is adjacent to the identification position, the first limiting member moves toward the second limiting member during a process of switching the first rotation shaft from adjacent to the identification position to adjacent to the second end, and the first limiting member contacts the second limiting member in a case where the first rotation shaft is adjacent to the second end.

In some embodiments, a protrusion is disposed within the actuation slot, wherein the protrusion moves toward the actuation shaft during rotation of the body portion about the second rotational axis to switch the first rotational axis from adjacent the identification position to adjacent the second end, and wherein the actuation shaft contacts the protrusion with the first rotational axis adjacent the second end.

In some embodiments, the dc isolating switch further includes a mounting member having a pair of arc-shaped holes provided thereon, and the actuating shaft passes through one of the pair of arc-shaped holes, and is movable along the corresponding arc-shaped hole upon rotation of the operating handle.

In some embodiments, the operating mechanism further includes a third rotation shaft and a pair of elastic members, one end of one elastic member of the pair of elastic members is connected to the mounting member, the other end is connected to the actuating shaft, one end of the other elastic member of the pair of elastic members is connected to the mounting member, the other end is connected to the third rotation shaft, the third rotation shaft passes through the other arc-shaped hole of the pair of arc-shaped holes, and the third rotation shaft moves along the corresponding arc-shaped hole in case the operating handle rotates.

It should be understood that what is described in this section is not intended to limit the key features or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, wherein like or similar reference numerals denote like or similar elements, in which:

fig. 1 illustrates a partial schematic structure of a dc isolating switch according to some embodiments of the present disclosure, wherein an operating handle is not shown;

fig. 2 illustrates a partial schematic structure of a dc isolating switch according to some embodiments of the present disclosure, wherein the dc isolating switch is in a closed state and the operating handle, the elastic member, and the mounting member are not shown;

fig. 3 shows a partial schematic diagram of the dc disconnector according to fig. 2, wherein the dc disconnector is in a switched-off state;

FIG. 4 shows a schematic view of a portion of the structure of the DC isolating switch according to FIG. 2, wherein the first rotational axis is adjacent to the second end;

FIG. 5 illustrates a partial schematic view of a cam according to some embodiments of the present disclosure, wherein the second rotational axis is not shown;

fig. 6 shows a schematic view of the cam according to fig. 5 from another perspective.

Reference numerals illustrate:

10 is a direct current isolating switch;

1 is an operating mechanism, 11 is a first rotating shaft, 12 is an elastic piece, 13 is an actuating shaft, and 14 is a third rotating shaft;

2 is a cam, 21 is a main body, 211 is an arc groove, 2111 is a first end, 2112 is a second end, 2113 is a marking position, 212 is an actuating groove, 213 is a rotating hole, 214 is a driving groove, 22 is a second rotating shaft, and 23 is a protruding member;

3 is a mounting piece, 31 is an arc hole;

4 is a static contact; 5 is a moving contact; 6 is a driving piece, 61 is a first limiting piece; and 7 is a second limiting piece.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are illustrated in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The term "comprising" and variations thereof as used herein means open ended, i.e., "including but not limited to. The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment. The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like, may refer to different or the same object.

As described above, the back impact force of the main body mechanism on the cam may cause the cam to be unevenly stressed and offset, so that the cam shaft is easily broken to affect the service life of the dc isolating switch. The embodiment of the disclosure provides a direct current isolating switch to solve the problem that a second rotating shaft is easy to break due to the fact that an arc needs to be extinguished quickly. Hereinafter, the principles of the present disclosure will be described with reference to fig. 1 to 6.

Fig. 1 illustrates a partial schematic diagram of a dc isolating switch 10, in which an operating handle is not shown, according to some embodiments of the present disclosure. Fig. 2 illustrates a partial schematic structure of the dc isolating switch 10 according to some embodiments of the present disclosure, wherein the dc isolating switch 10 is in a closed state and the operating handle, the elastic member 12, and the mounting member 3 are not illustrated. As shown in fig. 1 to 2, the direct current disconnecting switch 10 described herein generally includes an operating mechanism 1, a cam 2, a mounting member 3, a fixed contact 4, a moving contact 5, a driving member 6, and a second limiting member 7.

As shown in fig. 1, the mount 3 serves as a mounting carrier for the setting of the operating mechanism 1. The mounting member 3 is provided with a pair of arcuate holes 31. The operating mechanism 1 includes an operating handle (not shown in the drawings), a first rotating shaft 11, a pair of elastic members 12, an actuating shaft 13, and a third rotating shaft 14.

As further shown in fig. 1, the first rotation shaft 11 is provided on the mount 3, and the first rotation shaft 11 is limited by the mount 3. The operating handle is provided on the first rotation shaft 11. The operating handle is driven, which is rotatable relative to the mounting 3 about a first rotation axis 11.

As further shown in fig. 1, in some embodiments one spring 12 of the pair of springs 12 is connected at one end to the mounting 3 and at the other end to the actuation shaft 13. One end of the other elastic member 12 of the pair of elastic members 12 is connected to the mounting member 3, and the other end is connected to the third rotation shaft 14. The actuation shaft 13 passes through one of the pair of arcuate holes 31. The third rotation shaft 14 passes through the other arc-shaped hole 31 of the pair of arc-shaped holes 31. The actuation shaft 13 and the third rotation shaft 14 are both provided on the operation handle. The actuating shaft 13 and the third rotary shaft 14 can thus move simultaneously along the respective arcuate holes 31 during movement of the operating handle about the first rotary shaft 11. It should be noted that the movement paths of the actuating shaft 13 and the third rotating shaft 14 in the corresponding arc-shaped holes 31 are opposite. That is, as shown in fig. 1, in the case where the actuating shaft 13 rotates counterclockwise along the corresponding arc hole 31, the third rotating shaft 14 rotates clockwise within the corresponding arc hole 31. And in the case where the actuating shaft 13 rotates clockwise along the corresponding arc hole 31, the third rotation shaft 14 rotates counterclockwise within the corresponding arc hole 31.

With the above-described configuration, as shown in fig. 1, in the case where the operation handle is turned, the actuation shaft 13 and the third turning shaft 14 can be moved along the corresponding arc-shaped holes 31, respectively, and the movement paths of the actuation shaft 13 and the third turning shaft 14 are reversed. In the case of a movement of the operating handle into a certain position, the actuating shaft 13 and the third rotary shaft 14 can then bring the respective elastic elements 12 into a dead-center position, i.e. approximately form a straight line between the pairs of elastic elements 12. The paired elastic members 12 are unstable at the dead point position, and both the paired elastic members 12 are forced to be compressed. The elastic member 12 can release energy under the condition of a compressed state and can drive the actuating shaft 13 and the third rotating shaft 14 to continuously move in the corresponding arc-shaped holes 31, so as to drive the operating handle to move, and the direct current isolating switch 10 is switched between a closing state and a separating state. In the case where the paired elastic members 12 are in the dead point positions, the moving contact 5 and the fixed contact 4 are in a critical state between the separated state and the connected state. I.e. the moving contact 5 and the stationary contact 4 will be separated or about to be connected.

It will be appreciated that during the transition of the pair of resilient members 12 from the rest position to the dead-centre position, the operator is required to rotate the operating handle to move the resilient members 12. And in the case where the paired elastic members 12 are switched to the dead point positions, the elastic members 12 are compressed to store energy. The elastic member 12 can release energy and drive the actuating shaft 13 and the third rotating shaft 14 to move under the condition of being in a compressed state, so that the operating handle is driven to move, and an operator does not need to apply force to rotate the operating handle.

An exemplary structure of the dc-isolating switch 10 is described further below in conjunction with fig. 3 and 4. Fig. 3 shows a partial schematic diagram of the dc isolating switch 10 according to fig. 2, wherein the dc isolating switch 10 is in the off-state. Fig. 4 shows a schematic view of a part of the structure of the dc disconnector 10 according to fig. 2, in which the first rotational shaft 11 is adjacent to the second end 2112. Fig. 5 illustrates a partial schematic structure of the cam 2 according to some embodiments of the present disclosure, in which the second rotation shaft 22 is not illustrated. As shown in fig. 2 to 5, the cam 2 includes a main body portion 21 and a second rotation shaft 22. The main body 21 is provided with a rotation hole 213, and the main body 21 is provided on the second rotation shaft 22 through the rotation hole 213. The main body 21 is rotatable about a second rotation axis 22. The side of the main body portion 21 facing the operating mechanism 1 is provided with an arc-shaped groove 211 and an actuation groove 212. A part of the actuation shaft 13 is disposed in the actuation groove 212, while the third rotation shaft 14 is not in contact with the cam 2. Since the actuation shaft 13 can rotate together with the operation handle, in the case of rotation of the operation handle, the actuation shaft 13 can move within the actuation groove 212 and contact the groove wall of the actuation groove 212 to push the main body portion 21 to rotate about the second rotation shaft 22. A portion of the first rotation shaft 11 is disposed within the arcuate slot 211. In the case where the actuation shaft 13 pushes the body portion 21 to rotate about the second rotation shaft 22, different portions of the groove wall of the arc-shaped groove 211 contact the first rotation shaft 11. It will be appreciated that the first rotation shaft 11 is not movable since the first rotation shaft 11 is fixed to the mounting 3. But since the body portion 21 can rotate about the second rotation axis 22, the first rotation axis 11 can be in contact with different portions of the groove wall of the arc-shaped groove 211.

A space exists between a portion of the first rotation shaft 11 located in the arc-shaped groove 211 and the bottom of the arc-shaped groove 211. There is also a space between a portion of the actuation shaft 13 located within the actuation slot 212 and the slot bottom of the actuation slot 212.

As further shown in fig. 2-5, in some embodiments, the arcuate slot 211 includes a first end 2111, a second end 2112, and an identified location 2113 between the first end 2111 and the second end 2112. The actuation shaft 13 is movable along the arcuate aperture 31 in the event of rotation of the operating handle. A portion of the actuation shaft 13 moves within the actuation slot 212 and contacts the slot wall of the actuation slot 212 to urge the body portion 21 to rotate about the second rotational axis 22, thereby switching the first rotational axis 11 from adjacent the first end 2111 to adjacent the identification position 2113 and the dc isolating switch 10 from the on state to the off state.

An exemplary structure of the cam 2 is described further below in conjunction with fig. 6. Fig. 6 shows a schematic view of the cam 2 according to fig. 5 from another perspective. As shown in fig. 2 to 4 and 6, the side of the body portion 21 of the cam 2 facing away from the operating mechanism 1 is provided with a drive slot 214 which cooperates with the driver 6. The driving member 6 is disposed in the driving groove 214. The moving contact 5 is connected with the driving piece 6 and is arranged corresponding to the fixed contact 4. With the above configuration, the moving contact 5 and the driving piece 6 can move together with the cam 2. As shown in fig. 2, when the cam 2 drives the moving contact 5 to move and connects the moving contact 5 with the fixed contact 4, the dc isolating switch 10 is in a closed state. As shown in fig. 3, when the cam 2 drives the moving contact 5 to move and separates the moving contact 5 from the fixed contact 4, the dc isolating switch 10 is in the open state.

With the above configuration, the main body 21 can move the driver 6 together with the main body 21 rotating about the second rotation shaft 22. The driving piece 6 drives the moving contact 5 to move towards or away from the fixed contact 4 so as to realize the switching of the direct current isolating switch 10 between the opening state and the closing state.

Returning to fig. 2, when the first rotating shaft 11 is adjacent to the first end 2111, the moving contact 5 is connected to the fixed contact 4, and the dc isolating switch 10 is in the closed state. Returning to fig. 3, in the case of rotation of the operating handle, the actuating shaft 13 can move synchronously. The actuating shaft 13 moves within the actuating groove 212 and contacts the groove wall of the actuating groove 212 to push the main body portion 21 to rotate about the second rotation shaft 22. During this movement, the first rotation shaft 11 is switched from adjacent the first end 2111 to adjacent the marking position 2113, and the main body 21 moves the movable contact 5 away from the stationary contact 4. When the first rotation shaft 11 is adjacent to the identification position 2113, the moving contact 5 and the fixed contact 4 are separated, and the dc isolating switch 10 is in the open state. Returning to fig. 4, the outer side wall of the driver 6 is provided with a first stopper 61. In the case where the first rotation shaft 11 is adjacent to the index position 2113, the first stopper 61 is provided corresponding to the second stopper 7 with a space therebetween to the second stopper 7. This gap facilitates lengthening the arc leg of the arc to increase the arc voltage and thus facilitate arc extinction. And the first stop 61 moves toward the second stop 7 during the switching of the first rotation shaft 11 from the adjacent identification position 2113 to the adjacent second end 2112. With the first rotational shaft 11 adjacent the second end 2112, the first stop 61 contacts and impacts the second stop 7.

It should be noted that, in the case where the actuation shaft 13 moves along the corresponding arc-shaped hole 31 and moves the actuation shaft 13 to the end of the arc-shaped hole 31, although the actuation shaft 13 is restrained by the end of the arc-shaped hole 31 from continuing movement, the cam 2 can continue movement due to inertia to cause the first stopper 61 to strike the second stopper 7 and switch the first rotation shaft 11 from the adjacent index position 2113 to the adjacent second end 2112. The elasticity of the elastic member 12 is generally set to be large because of the need for rapid extinguishing of the arc. The force released by the elastic member 12 can thus cause the first stopper 61 to rapidly strike the second stopper 7.

On the one hand, the first limiting member 61 quickly impacts the second limiting member 7, which is very easy to cause the cam 2 to be unevenly stressed and offset, and further causes the second rotating shaft 22 of the cam 2 to be stressed and broken. To solve the above-described problem, as shown in fig. 2 to 4, in some embodiments, a portion of the first rotation shaft 11 is disposed within the arc-shaped groove 211. In the case where the main body portion 21 rotates about the second rotation axis 22, different portions of the groove wall of the arc-shaped groove 211 contact the first rotation axis 11. With the above configuration, since the first rotating shaft 11 is always in contact with the groove wall of the arc-shaped groove 211, in the case that the first limiting member 61 rapidly impacts the second limiting member 7, the first rotating shaft 11 shares part of the back impact force received by the cam 2, and reduces the back impact force borne by the second rotating shaft 22, thereby effectively preventing the second rotating shaft 22 from breaking and prolonging the service life of the dc isolating switch 10.

On the other hand, the first stopper 61 rapidly hits the second stopper 7, which is also extremely liable to cause damage to the first stopper 61 and/or the second stopper 7. To solve the above-described problem, as shown in fig. 2 to 4, in some embodiments, a protrusion 23 is provided in the actuation groove 212. During the continued rotation of the body portion 21 about the second rotation axis 22 due to inertia and the switching of the first rotation axis 11 from the adjacent index position 2113 to the adjacent second end 2112, the boss 23 moves toward the actuation axis 13, and in the case where the first rotation axis 61 is adjacent to the second end 2112, the actuation axis 13 contacts the boss 23. With the above configuration, the acting force applied by the actuating shaft 13 to the protruding member 23 can also prevent the main body 21 from continuing to rotate, so that the acting force of the first limiting member 61 striking the second limiting member 7 is reduced, and the first limiting member 61 and/or the second limiting member 7 are not easy to damage, which is beneficial to prolonging the service life of the dc isolating switch 10. It will be appreciated that the force applied by the actuating shaft 13 to the boss 23, as shown in figure 4, tends to rotate the body 21 clockwise, thereby tending to move the first stop 61 away from the second stop 7, advantageously reducing the force with which the first stop 61 impacts the second stop 7.

As shown in fig. 3 to 4, in some embodiments, in a case where the actuation shaft 13 contacts the groove wall of the actuation groove 212, the actuation shaft 13, the first rotation shaft 11, and the second rotation shaft 22 can each contact the main body portion 21. With the above arrangement, the parts of the actuation shaft 13, the first rotation shaft 11, and the second rotation shaft 22 that are in contact with the main body portion 21 form a triangle. That is, the three-axis positioning is beneficial to ensuring the stability of the cam 2 in the moving process, and the cam 2 cannot deviate, so that the second rotating shaft 22 cannot be acted on, thereby preventing the second rotating shaft 22 from being broken and prolonging the service life of the direct current isolating switch 10.

The cam 2 according to the embodiment of the present disclosure may be applied to various direct current disconnectors 10 in order to solve the problem that the second rotating shaft 22 is easily broken due to the need to rapidly extinguish the arc. It should be understood that cams according to embodiments of the present disclosure may also be applied to other components, as well, embodiments of the present disclosure are not limited in this respect.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A direct current disconnector (10), characterized in that the direct current disconnector (10) comprises:

an operating mechanism (1), the operating mechanism (1) comprising an operating handle and a first rotation axis (11), the operating handle being arranged on the first rotation axis (11) and rotating around the first rotation axis (11); and

cam (2), cam (2) include main part (21) and second axis of rotation (22), main part (21) set up on second axis of rotation (22) and can rotate round second axis of rotation (22), the one side of main part (21) towards operating device (1) is provided with arc wall (211), a portion of first axis of rotation (11) sets up in arc wall (211), and in the condition that main part (21) rotate round second axis of rotation (22), the different part of the cell wall of arc wall (211) contacts first axis of rotation (11).

2. The direct current disconnector (10) according to claim 1, characterized in that the operating mechanism (1) further comprises an actuating shaft (13), the actuating shaft (13) being arranged on the operating handle and being rotatable therewith, the side of the main body part (21) facing the operating mechanism (1) being further provided with an actuating groove (212), the actuating shaft (13) being movable in the actuating groove (212) and contacting the groove wall of the actuating groove (212) for pushing the main body part (21) to rotate around the second rotation axis (22).

3. The direct current disconnector (10) according to claim 2, characterized in that the arc-shaped slot (211) comprises a first end (2111), a second end (2112) and a marking position (2113) between the first end (2111) and the second end (2112), wherein the direct current disconnector (10) switches from a closed state to an open state in case the main body part (21) rotates around the second rotation axis (22) such that the first rotation axis (11) switches from adjacent the first end (2111) to adjacent the marking position (2113).

4. A direct current disconnector (10) according to claim 3, characterized in that the direct current disconnector (10) further comprises a moving contact (5) and a driving member (6) connected to the moving contact (5), a side of the cam (2) facing away from the operating member (1) being provided with a driving slot (214) cooperating with the driving member (6), the driving member (6) being arranged in the driving slot (214).

5. The direct current disconnector (10) according to claim 4, characterized in that a first stop (61) is provided on the outer side wall of the drive member (6), the direct current disconnector (10) further comprising a second stop (7), wherein a gap is present between the first stop (61) and the second stop (7) in case the first rotation axis (11) is adjacent to the identification position (2113), the first stop (61) moves towards the second stop (7) during switching of the first rotation axis (11) from adjacent to the identification position (2113) to adjacent to the second end (2112), and the first stop (61) contacts the second stop (7) in case the first rotation axis (11) is adjacent to the second end (2112).

6. The direct current disconnector (10) according to claim 5, characterized in that a protruding member (23) is provided in the actuation groove (212), wherein the protruding member (23) moves towards the actuation shaft (13) during rotation of the body part (21) about the second rotation axis (22) to switch the first rotation axis (11) from adjacent the identification position (2113) to adjacent the second end (2112), and wherein the actuation shaft (13) contacts the protruding member (23) with the first rotation axis (11) adjacent the second end (2112).

7. The direct current disconnector (10) according to claim 2, characterized in that the direct current disconnector (10) further comprises a mounting member (3), wherein a pair of arc-shaped holes (31) is provided in the mounting member (3), wherein the actuating shaft (13) passes through one arc-shaped hole (31) of the pair of arc-shaped holes (31), and wherein the actuating shaft (13) is movable along the respective arc-shaped hole (31) upon rotation of the operating handle.

8. The direct current disconnector (10) according to claim 7, characterized in that the operating mechanism (1) further comprises a third rotation shaft (14) and a pair of elastic members (12), one end of one elastic member (12) of the pair of elastic members (12) being connected to the mounting member (3) and the other end being connected to the actuation shaft (13), one end of the other elastic member (12) of the pair of elastic members (12) being connected to the mounting member (3) and the other end being connected to the third rotation shaft (14), the third rotation shaft (14) passing through the other arc-shaped hole (31) of the pair of arc-shaped holes (31), and the third rotation shaft (14) being movable along the corresponding arc-shaped hole (31) upon rotation of the operating handle.