Knife switch structure

Abstract

The invention relates to the technical field of electric power system disconnecting links, in particular to a disconnecting link structure, which comprises a disconnecting link main body, and is characterized in that the disconnecting link main body comprises a movable contact and a static contact; the driving mechanism is used for driving the movable contact to be close to or away from the static contact; the controller is used for controlling the driving mechanism to drive the movable contact to be wedged with the static contact under the condition that the controller receives a closing instruction; and under the condition that the controller receives the pull-open instruction, the controller controls the driving mechanism to drive the movable contact to leave the static contact. By means of the arrangement, automation of closing and opening operation of the disconnecting link can be achieved, human intervention is reduced, operation and maintenance cost is reduced, workers do not need to operate the disconnecting link body in severe weather such as rainy days, and safety is guaranteed.

Description

Technical Field

[0001] This disclosure relates to the technical field of disconnectors in power systems, and more particularly to a disconnector structure. Background Technology

[0002] In related technologies, disconnectors in power systems usually require manual operation to close or open, resulting in high maintenance costs. Especially in inclement weather such as rain, it is difficult for staff to operate the disconnectors, and the safety is poor.

[0003] Therefore, it is necessary to propose a switch structure to at least partially solve the problems existing in the prior art. Summary of the Invention

[0004] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, this disclosure proposes a knife switch structure.

[0006] In view of this, a knife switch structure is proposed according to an embodiment of the present disclosure, comprising:

[0007] The main body of the disconnect switch includes moving contacts and stationary contacts;

[0008] A driving mechanism is used to drive the moving contact to move closer to or away from the stationary contact.

[0009] When the controller receives a closing command, the controller controls the drive mechanism to drive the moving contact to wedge into the stationary contact; when the controller receives a pulling command, the controller controls the drive mechanism to drive the moving contact to move away from the stationary contact.

[0010] In one feasible implementation, the aforementioned knife switch body further includes:

[0011] The first insulating post, the connecting end of the aforementioned moving contact is rotatably connected to the aforementioned first insulating post;

[0012] The second insulating post, wherein the aforementioned stationary contact is disposed on the aforementioned second insulating post.

[0013] In one feasible implementation, the drive mechanism includes:

[0014] The third insulating post is located between the first insulating post and the second insulating post;

[0015] A telescopic drive mechanism is provided on the third insulating post. The moving contact is connected to the telescopic drive mechanism. When the controller receives a closing command, the controller controls the telescopic drive mechanism to retract, so as to pull the moving contact closer to the stationary contact. When the controller receives a pulling-out command, the controller controls the telescopic drive mechanism to extend, so as to push the moving contact away from the stationary contact.

[0016] In one feasible implementation, the telescopic drive mechanism includes:

[0017] The drive unit is disposed in the aforementioned third insulating post;

[0018] The telescopic part is connected to the drive part, and the drive part provides power to the telescopic part so that the telescopic part can extend or retract.

[0019] In one feasible implementation, the drive unit includes:

[0020] Drive motor;

[0021] The gear transmission box transmits the power of the drive motor to the telescopic part.

[0022] In one feasible implementation, the telescopic portion includes:

[0023] The lead screw is connected to the aforementioned gear transmission box;

[0024] A nut is screwed onto the lead screw, and when the lead screw rotates, the nut moves along the axis of the lead screw.

[0025] The push rod is connected to the aforementioned nut.

[0026] In one feasible implementation, the drive mechanism includes:

[0027] The fourth insulating post is located beside the second insulating post mentioned above;

[0028] A hydraulic drive mechanism is provided on the fourth insulating post. The moving contact is connected to the hydraulic drive mechanism. When the controller receives a closing command, the controller controls the hydraulic drive mechanism to drive the moving contact to swing in a first direction so that the moving contact approaches the stationary contact. When the controller receives a pulling-out command, the controller controls the hydraulic drive mechanism to drive the moving contact to swing in a second direction so that the moving contact moves away from the stationary contact.

[0029] The first direction mentioned above is opposite to the second direction mentioned above.

[0030] In one feasible implementation, the above-mentioned hydraulic drive mechanism includes:

[0031] The hydraulic cylinder is housed within the aforementioned fourth insulating column;

[0032] A connecting rod, one end of which is connected to the hydraulic cylinder and the other end of which is hinged to the moving contact;

[0033] When the hydraulic cylinder extends, the connecting rod causes the moving contact to swing away from the stationary contact; when the hydraulic cylinder retracts, the connecting rod causes the moving contact to swing closer to the stationary contact.

[0034] In one feasible implementation, the above-mentioned knife switch structure further includes:

[0035] An insulating component is fitted onto the middle of the aforementioned connecting rod.

[0036] In one feasible embodiment, both the moving contact and the stationary contact are copper-tungsten alloy contacts, and the surface of the copper-tungsten alloy contacts is silver-plated, with the thickness of the silver plating coating being greater than or equal to 5 μm.

[0037] Compared to existing technologies, this disclosure offers at least the following advantages: The knife gate structure provided in this embodiment includes a knife gate body, a drive structure, and a controller. The knife gate body has a moving contact and a stationary contact. When the moving contact is engaged with the stationary contact, the knife gate is in a closed state; when the moving and stationary contacts are separated, the knife gate is in an open state. The moving contact can be driven by a drive mechanism to move closer to or further away from the stationary contact. The drive mechanism is electrically connected to the controller. When the controller receives a closing signal, it can control the drive mechanism to move the moving contact closer to the stationary contact until the moving contact is engaged with the stationary contact, thus closing the knife gate body. When the controller receives an opening signal, it can control the drive mechanism to move the moving contact further away from the stationary contact until the moving contact is completely separated from the stationary contact, thus opening the knife gate body. This configuration automates the closing and opening operations of the knife gate, reducing human intervention and maintenance costs. Furthermore, in inclement weather such as rain, no personnel are required to operate the knife gate body, ensuring safety. Attached Figure Description

[0038] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0039] Figure 1 This is a schematic structural diagram of a knife switch structure according to an embodiment of the present disclosure;

[0040] Figure 2 This is a schematic structural diagram of another knife switch structure provided in one embodiment of the present disclosure.

[0041] in, Figure 1 and Figure 2 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0042] 100 Knife switch structure, 110 Knife switch body, 111 First insulating post, 112 Second insulating post, 113 Moving contact, 114 Stationary contact, 120 Telescopic drive mechanism, 121 Third insulating post, 122 Push rod, 130 Hydraulic drive mechanism, 131 Fourth insulating post, 132 Hydraulic cylinder, 133 Connecting rod, 140 Insulating component. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0044] like Figure 1 and Figure 2 As shown, according to an embodiment of this disclosure, a knife switch structure 100 is provided, comprising: a knife switch body 110, the knife switch body 110 including a moving contact 113 and a stationary contact 114; a drive mechanism for driving the moving contact 113 to move closer to or away from the stationary contact 114; and a controller, which, when the controller receives a closing command, controls the drive mechanism to drive the moving contact 113 to engage with the stationary contact 114; and when the controller receives an opening command, the controller controls the drive mechanism to drive the moving contact 113 to move away from the stationary contact 114.

[0045] It is understood that the knife gate structure 100 provided in this embodiment includes a knife gate body 110, a drive structure, and a controller. The knife gate body 110 includes a moving contact 113 and a stationary contact 114. When the moving contact 113 is engaged with the stationary contact 114, the knife gate is in a closed state; when the moving contact 113 and the stationary contact 114 are separated, the knife gate is in an open state. The moving contact 113 can be driven to move by the drive mechanism, causing it to move closer to or further away from the stationary contact 114. The drive mechanism is electrically connected to the controller. When the controller receives a closing signal, it can control the drive mechanism to move the moving contact 113 towards the stationary contact 114 until the moving contact 113 is engaged with the stationary contact 114, thus closing the gate body. When the controller receives an opening signal, it can control the drive mechanism to move the moving contact 113 away from the stationary contact 114 until the moving contact 113 is completely separated from the stationary contact 114, thus opening the gate body. This setup automates the closing and opening of the knife switch, reducing human intervention and maintenance costs. Furthermore, it eliminates the need for staff to operate the knife switch body 110 during inclement weather such as rain, ensuring safety.

[0046] In some examples, such as Figure 1 and Figure 2 As shown, the main body 110 of the knife switch also includes: a first insulating post 111, the connecting end of the moving contact 113 being rotatably connected to the first insulating post 111; and a second insulating post 112, the stationary contact 114 being disposed on the second insulating post 112.

[0047] It is understood that the switch body 110 may also be provided with a first insulating post 111 and a second insulating post 112. Specifically, the connection end of the moving contact 113 is rotatably disposed on the first insulating post 111, and the moving contact 113 is supported by the first insulating post 111. The stationary contact 114 may be disposed on the second insulating post 112, and the stationary contact 114 is supported by the second insulating post 112. By providing the first insulating post 111 and the second insulating post 112, live lines can be effectively isolated, electric shock accidents can be avoided, reliable protection can be provided for maintenance personnel, and safety can be improved. For example, ceramic insulating posts may be selected as insulating posts.

[0048] In some examples, such as Figure 1As shown, the drive mechanism includes: a third insulating post 121 located between the first insulating post 111 and the second insulating post 112; a telescopic drive mechanism 120 disposed on the third insulating post 121; the moving contact 113 connected to the telescopic drive mechanism 120; when the controller receives a closing command, the controller controls the telescopic drive mechanism 120 to retract, so as to pull the moving contact 113 closer to the stationary contact 114; when the controller receives a pulling command, the controller controls the telescopic drive mechanism 120 to extend, so as to push the moving contact 113 away from the stationary contact 114.

[0049] It is understood that the drive mechanism may include a third insulating post 121 and a telescopic drive mechanism 120. Specifically, the third insulating post 121 may be located between the first insulating post 111 and the second insulating post 112, and the telescopic drive mechanism 120 may be disposed on the third insulating post 121 to support the telescopic drive mechanism 120. By providing the third insulating post 121, the live line can be effectively isolated, electric shock accidents can be avoided, reliable protection can be provided for maintenance personnel, and safety can be improved.

[0050] The moving contact 113 is connected to the telescopic drive mechanism 120. The telescopic drive mechanism 120 is electrically connected to the controller. With this configuration, when the controller receives a closing command, it can control the telescopic mechanism to retract, thereby pulling the moving contact 113 towards the stationary contact 114 until the moving contact 113 wedges onto the stationary contact 114, closing the switch body 110. The controller then controls the telescopic drive mechanism 120 to remain in its current position to ensure the switch body 110 remains closed, improving stability. When the controller receives an opening command, it can control the telescopic mechanism to extend, thereby pushing the contact 113 away from the stationary contact 114 until the moving contact 113 completely separates from the stationary contact 114, opening the switch body 110. The controller then controls the telescopic drive mechanism 120 to remain in its current position to ensure the switch body 110 remains open, improving stability.

[0051] In some examples, the telescopic drive mechanism 120 includes: a drive unit disposed in the third insulating post 121; and a telescopic part connected to the drive unit, which provides power to the telescopic part to extend or retract the telescopic part.

[0052] It is understood that the telescopic drive mechanism 120 may include a drive unit and a telescopic unit. The drive unit may be housed within a third insulating post 121, which protects the drive unit. The telescopic unit is connected to the drive unit, and the drive unit is point-connected to a controller, thereby controlling the drive unit to drive the telescopic unit to perform telescopic movement.

[0053] In some examples, the drive unit includes: a drive motor; and a gearbox that transmits power from the drive motor to the telescopic unit.

[0054] It is understood that the drive unit may be equipped with a drive motor and a gear transmission box. The gear transmission box may be connected to the output shaft of the drive motor and the telescopic part. The gear transmission box adjusts the speed of the output shaft of the drive motor to a suitable speed and then transmits it to the telescopic part so that the telescopic part can extend and retract at a suitable speed. For example, the telescopic part can drive the moving contact 113 to move at a speed of 0.8m / s to 1.5m / s to achieve a fast response to the controller's commands.

[0055] In some examples, the telescopic part includes: a lead screw connected to the gear transmission box; a nut screwed to the lead screw, which moves along the axis of the lead screw when the lead screw rotates; and a push rod 122 connected to the nut.

[0056] Understandably, the telescopic part may be equipped with a lead screw, a nut, and a push rod 122. The lead screw is connected to the output end of the gear transmission box, which transmits the power output from the drive motor's output shaft to the lead screw after adjustment, allowing the lead screw to rotate at a suitable speed. The nut is screwed onto the lead screw, and the push rod 122 is connected to the nut. The central axis of the lead screw may coincide with the central axis of the third insulating post 121, and the third insulating post 121, the first insulating post 111, and the second insulating post 112 are parallel to each other. When the lead screw rotates, it can drive the nut to move along the axis of the lead screw, thereby driving the push rod 122 to move along the axis of the lead screw. With this configuration, when the controller receives a closing command, it can control the drive motor to rotate forward, thereby driving the lead screw to rotate forward. The nut moves downward along the axis of the lead screw, thereby driving the push rod 122 to move downward. The push rod 122 can pull the moving contact 113 to swing towards the stationary contact 114 until the moving contact 113 wedges into the stationary contact 114, causing the knife switch body 110 to close. The controller then controls the drive motor to stop rotating so that the push rod 122 remains in its current position, ensuring that the knife switch body 110 can maintain the closed state and improving stability. When the controller receives a pull-open command, it can control the drive motor to reverse, thereby causing the lead screw to reverse. The nut moves upward along the axis of the lead screw, thereby causing the push rod 122 to move upward. The push rod 122 can push the moving contact 113 to swing away from the stationary contact 114 until the moving contact 113 completely leaves the stationary contact 114, causing the knife switch body 110 to open. The controller controls the drive motor to stop rotating so that the push rod 122 can maintain its current position, ensuring that the knife switch body 110 can maintain the open state and improving stability.

[0057] In some examples, such as Figure 2As shown, the aforementioned driving mechanism includes: a fourth insulating post 131 located beside the second insulating post 112; a hydraulic driving mechanism 130 disposed on the fourth insulating post 131; the moving contact 113 connected to the hydraulic driving mechanism 130; when the controller receives a closing command, the controller controls the hydraulic driving mechanism 130 to drive the moving contact 113 to swing in a first direction, so that the moving contact 113 approaches the stationary contact 114; when the controller receives a pulling command, the controller controls the hydraulic driving mechanism 130 to drive the moving contact 113 to swing in a second direction, so that the moving contact 113 moves away from the stationary contact 114; wherein the first direction and the second direction are opposite.

[0058] It is understood that the drive mechanism may be equipped with a fourth insulating post 131 and a hydraulic drive mechanism 130. The fourth insulating post 131 may be located beside the second insulating post 112, and the hydraulic drive mechanism 130 may be located on the fourth insulating post 131. The fourth insulating post 131 protects the hydraulic drive mechanism 130. The moving contact 113 may be connected to the hydraulic drive mechanism 130. With this configuration, when the controller receives a closing command, the controller controls the hydraulic drive mechanism 130 to drive the moving contact 113 to swing in a first direction, so that the moving contact 113 approaches the stationary contact 114, until the moving contact 113 wedges into the stationary contact 114, closing the switch body 110. The controller then controls the hydraulic drive mechanism 130 to maintain its current position, ensuring that the switch body 110 remains closed and improving stability. When the controller receives the opening command, the controller controls the hydraulic drive mechanism 130 to drive the moving contact 113 to swing in the second direction, so that the moving contact 113 moves away from the stationary contact 114, until the moving contact 113 completely leaves the stationary contact 114, so that the knife switch body 110 is opened. The controller controls the hydraulic drive mechanism 130 to maintain the current position, so as to ensure that the knife switch body 110 can maintain the opened state and improve stability.

[0059] In some examples, such as Figure 2 As shown, the hydraulic drive mechanism 130 includes: a hydraulic cylinder 132 disposed within the fourth insulating post 131; and a connecting rod 133, one end of which is connected to the hydraulic cylinder 132, and the other end of which is hinged to the moving contact; wherein, when the hydraulic cylinder 132 is extended, the connecting rod 133 drives the moving contact to swing away from the stationary contact; and when the hydraulic cylinder 132 is retracted, the connecting rod 133 drives the moving contact to swing closer to the stationary contact.

[0060] It is understood that the hydraulic drive mechanism 130 may be equipped with a hydraulic cylinder 132 and a connecting rod 133. The hydraulic cylinder 132 may be housed within the fourth insulating post 131, and one end of the connecting rod 133 may be connected to the piston rod of the hydraulic cylinder 132, while the other end may be hinged to the moving contact. With this configuration, when the controller receives a closing command, the controller controls the piston of the hydraulic cylinder 132 to retract, causing the connecting rod 133 to move downwards. This, in turn, causes the moving contact 113 to swing in the first direction, bringing it closer to the stationary contact 114 until the moving contact 113 wedges into the stationary contact 114, thus closing the knife switch body 110. The controller then controls the piston rod of the hydraulic cylinder 132 to maintain its current position, ensuring that the knife switch body 110 remains closed and improving stability. When the controller receives the opening command, the controller controls the piston of the hydraulic cylinder 132 to extend, thereby driving the connecting rod 133 to move upward. This causes the moving contact 113 to swing in the second direction through the connecting rod 133, so that the moving contact 113 moves away from the stationary contact 114 until the moving contact 113 completely leaves the stationary contact 114, thus opening the knife switch body 110. The controller controls the piston rod of the hydraulic cylinder 132 to maintain the current position, ensuring that the knife switch body 110 can maintain the opened state and improving stability.

[0061] In some examples, such as Figure 2 As shown, the aforementioned knife switch structure 100 further includes an insulating component 140, which is sleeved on the middle part of the aforementioned connecting rod 133.

[0062] Understandably, the disconnector structure 100 may also be equipped with an insulating component 140. Specifically, the insulating component 140 is sleeved in the middle of the connecting rod 133 to ensure the safety of the connecting rod 133 during maintenance.

[0063] In some examples, both the moving contact and the stationary contact are copper-tungsten alloy contacts, and the surface of the copper-tungsten alloy contacts is silver-plated, with the thickness of the silver plating being greater than or equal to 5 μm.

[0064] Understandably, both the moving and stationary contacts can be made of copper-tungsten alloy to provide flexibility and high conductivity. Furthermore, the surface of the copper-tungsten alloy contacts is plated with silver to improve conductivity and corrosion resistance. The silver plating thickness is greater than or equal to 5 μm to ensure its effectiveness.

[0065] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of the invention.

[0066] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0067] It should be understood that in the description of this invention, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship as commonly placed when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0069] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0070] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0071] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0072] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A knife switch structure, characterized in that, include: The disconnect switch body includes a moving contact and a stationary contact; A driving mechanism is used to drive the moving contact closer to or further away from the stationary contact; The controller, upon receiving a closing command, controls the drive mechanism to drive the moving contact to wedge into the stationary contact; When the controller receives a pull-out command, the controller controls the drive mechanism to drive the moving contact away from the stationary contact.

2. The disconnector structure according to claim 1, characterized in that, The main body of the disconnect switch also includes: The first insulating post, and the connecting end of the moving contact is rotatably connected to the first insulating post; The second insulating post, wherein the stationary contact is disposed on the second insulating post.

3. The disconnector structure according to claim 1, characterized in that, The drive mechanism includes: The third insulating post is located between the first insulating post and the second insulating post; A telescopic drive mechanism is disposed on the third insulating post. The moving contact is connected to the telescopic drive mechanism. When the controller receives a closing command, the controller controls the telescopic drive mechanism to retract, so as to pull the moving contact closer to the stationary contact. When the controller receives a pulling-out command, the controller controls the telescopic drive mechanism to extend, so as to push the moving contact away from the stationary contact.

4. The disconnector structure according to claim 3, characterized in that, The telescopic drive mechanism includes: The driving unit is disposed in the third insulating post; A telescopic part is connected to the drive part, and the drive part provides power to the telescopic part to extend or retract it.

5. The disconnector structure according to claim 4, characterized in that, The drive unit includes: Drive motor; The gear transmission box transmits the power of the drive motor to the telescopic part.

6. The disconnector structure according to claim 5, characterized in that, The telescopic part includes: The lead screw is connected to the gear transmission box; A nut, screwed onto the lead screw, moves along the axis of the lead screw as the lead screw rotates; A push rod is connected to the nut.

7. The disconnector structure according to claim 1, characterized in that, The drive mechanism includes: The fourth insulating post is located next to the second insulating post; A hydraulic drive mechanism is disposed on the fourth insulating post. The moving contact is connected to the hydraulic drive mechanism. When the controller receives a closing command, the controller controls the hydraulic drive mechanism to drive the moving contact to swing in a first direction so that the moving contact moves closer to the stationary contact. When the controller receives a pulling-out command, the controller controls the hydraulic drive mechanism to drive the moving contact to swing in a second direction so that the moving contact moves away from the stationary contact. The first direction and the second direction are opposite.

8. The disconnector structure according to claim 7, characterized in that, The hydraulic drive mechanism includes: A hydraulic cylinder is disposed within the fourth insulating column; A connecting rod, one end of which is connected to the hydraulic cylinder and the other end of which is hinged to the moving contact; Specifically, when the hydraulic cylinder extends, the connecting rod causes the moving contact to swing away from the stationary contact; when the hydraulic cylinder retracts, the connecting rod causes the moving contact to swing closer to the stationary contact.

9. The disconnector structure according to claim 8, characterized in that, Also includes: An insulating component is fitted onto the middle part of the connecting rod.

10. The disconnector structure according to claim 1, characterized in that, Both the moving contact and the stationary contact are copper-tungsten alloy contacts, and the surface of the copper-tungsten alloy contact is silver-plated, with the thickness of the silver plating coating being greater than or equal to 5 μm.

Images