Totally enclosed insulated disconnector

Abstract

The full-closed insulation disconnecting switch provided by the disclosure relates to the technical field of power distribution equipment. The full-closed insulation disconnecting switch comprises at least one of an inner conical plug-in interface and an outer conical plug-in connector, a disconnecting switch, a grounding terminal head, a solid insulation material and a connecting disc. The disconnecting switch comprises an insulation sealed gas cavity, an anchor-shaped moving contact, a plurality of static contacts, a moving contact insulation support rod and a disconnecting switch housing. A first static contact and a second static contact in the plurality of static contacts are respectively connected with the outer conical plug-in connector and / or the inner conical plug-in interface through a metal conductor poured in the solid insulation material, and a third static contact is connected with the grounding terminal head through a metal conductor. The connecting disc is arranged between the outer conical plug-in connector and the solid insulation material, and / or the connecting disc is arranged at a plug-in interface of the inner conical plug-in interface. The problem that a multi-station disconnecting switch is large in size and inconvenient to install and disassemble in the related art is solved.

Description

Technical Field

[0001] This disclosure relates to the field of power distribution equipment technology, and in particular to a fully enclosed insulated disconnect switch. Background Technology

[0002] Disconnect switches are crucial equipment in the power supply industry, used in electrical equipment such as switchgear, and play a vital role in the safe operation of electrical equipment. The main uses of disconnect switches are: establishing a reliable insulation gap after tripping to disconnect equipment or lines requiring maintenance from the power supply, ensuring the safety of maintenance personnel and equipment; and controlling the switching of small currents in circuits, such as the charging current of bushings, busbars, connectors, short cables, and the no-load excitation current of transformers of a certain capacity.

[0003] In related technologies, multi-position disconnect switches are usually large in size due to their structural design and are fixed together with electrical equipment, making them inconvenient to install and disassemble. Summary of the Invention

[0004] To address the technical problem of multi-position disconnect switches in switchgear being bulky and inconvenient to install and disassemble when connected to other electrical equipment, this disclosure provides a fully enclosed insulated disconnect switch, comprising:

[0005] At least one of an inner conical connector and an outer conical connector, as well as a disconnecting switch, a grounding terminal head, solid insulating material, and a connecting plate;

[0006] The disconnecting switch is enclosed within the solid insulating material. The disconnecting switch includes: an insulating sealed air cavity, an anchor-shaped moving contact, multiple stationary contacts, an insulating support rod for the moving contact, and a disconnecting switch housing. The insulating sealed air cavity is cylindrical, and the multiple stationary contacts are arranged at equal angular intervals on the same arc within the insulating sealed air cavity. The plane containing the multiple stationary contacts is parallel to the bottom surface of the cylinder. The first and second stationary contacts are respectively connected to the outer conical connector and / or the inner conical connector via metal conductors cast within the solid insulating material. The third stationary contact is connected to the grounding terminal via a metal conductor cast within the solid insulating material.

[0007] The connecting plate is disposed between the outer conical connector and the solid insulating material, and / or the connecting plate is disposed at the connector of the inner conical connector;

[0008] One end of the moving contact insulating support rod is connected to the anchor-shaped moving contact, which is used to drive the anchor-shaped moving contact to rotate. The anchor-shaped moving contact is either anchor-shaped or arc-shaped.

[0009] Optionally, the fully enclosed insulated disconnect switch includes the inner conical connector, and the inner conical connector may be one or more.

[0010] Optionally, the fully enclosed insulated disconnect switch includes the external conical connector, and the external conical connector may be one or more.

[0011] Optionally, the first stationary contact, the second stationary contact, and the third stationary contact respectively contact the anchor-shaped moving contact through sliding friction.

[0012] Optionally, the first stationary contact and the anchor-shaped moving contact are in contact by sliding friction. The second stationary contact and the third stationary contact are both wedge-shaped contacts and are provided with pressure mating surfaces. The second stationary contact and the third stationary contact are in pressure mating contact with the anchor-shaped moving contact through the pressure mating surfaces.

[0013] Optionally, the fully enclosed insulated disconnect switch further includes a fiber optic temperature sensor, the temperature probe of which is cast into the solid insulating material to obtain the temperature of the fully enclosed insulated disconnect switch.

[0014] Optionally, the insulating sealed gas cavity is either a vacuum or filled with insulating gas.

[0015] Optionally, the disconnecting switch may also include a fourth stationary contact.

[0016] Compared with the prior art, this disclosure has the following beneficial effects:

[0017] The fully enclosed insulated disconnect switch disclosed herein includes at least one of an inner conical connector and an outer conical connector, as well as a disconnect switch, a grounding terminal head, solid insulating material, and a connecting plate; the disconnect switch is enclosed within the solid insulating material, and the disconnect switch includes: an insulating sealed air cavity, an anchor-shaped moving contact, multiple stationary contacts, an insulating support rod for the moving contact, and a disconnect switch housing; wherein, the insulating sealed air cavity is cylindrical, and the multiple stationary contacts are arranged at equal angular intervals on the same arc within the insulating sealed air cavity, and the plane containing the multiple stationary contacts is perpendicular to the cylindrical shape. The bottom surfaces are parallel; the first and second stationary contacts of the plurality of stationary contacts are respectively connected to the outer conical connector and / or the inner conical connector via metal conductors cast within the solid insulating material; the third stationary contact is connected to the grounding terminal via a metal conductor cast within the solid insulating material; the connecting plate is disposed between the outer conical connector and the solid insulating material, and / or the connecting plate is disposed at the connector of the inner conical connector; one end of the moving contact insulating support rod is connected to the anchor-shaped moving contact, for driving the anchor-shaped moving contact to rotate. In the fully enclosed insulating disconnect switch provided in the embodiments of this disclosure, when two adjacent stationary contacts are both connected to the anchor-shaped moving contact, a circuit is formed between the two adjacent stationary contacts; or when two adjacent stationary contacts are not connected to the anchor-shaped moving contact, an open circuit is formed between the two adjacent stationary contacts. The inner conical connector can be used to connect to electrical equipment, cables, or conduits; the outer conical connector can be used to connect to electrical equipment. Multiple stationary contacts are arranged on the same arc, which maximizes the utilization of the internal structure of the insulating sealed air cavity. This allows for a smaller insulating sealed air cavity to be designed under the same insulation strength requirements, thereby reducing the size of the fully enclosed insulated disconnect switch. Furthermore, the fully enclosed insulated disconnect switch provided in this embodiment includes an inner conical connector and / or an outer conical connector. The inner conical connector allows connection to electrical equipment, cables, or conduits, while the outer conical connector allows connection to electrical equipment (e.g., switchgear). This improves the operability of installing and disassembling the fully enclosed insulated disconnect switch, facilitating user installation and removal. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of a fully enclosed insulated disconnector provided in one embodiment of the present disclosure;

[0021] Figure 2 This is a schematic diagram showing the positions of the moving and stationary contacts when the disconnecting switch is open, according to an embodiment of this disclosure.

[0022] Figure 3 A cross-sectional view of a fully enclosed insulated disconnector provided in another embodiment of this disclosure;

[0023] Figure 4 This is a cross-sectional view of a fully enclosed insulated disconnector provided in yet another embodiment of this disclosure.

[0024] In the diagram, 11-disconnecting switch; 12-inner conical connector; 13-outer conical connector; 14-grounding terminal; 15-solid insulating material; 16-connecting disc; 17-metal conductor; 18-temperature probe; 111-insulating sealed air chamber; 112-anchor-shaped moving contact; 1131-first stationary contact; 1132-second stationary contact; 1133-third stationary contact; 114-moving contact insulating support rod; 115-disconnecting switch housing. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0026] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0027] In this disclosure, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0028] The fully enclosed insulated disconnect switch provided in this disclosure can be applied in high-voltage fields to realize the connection, disconnection, and equipment grounding of high-voltage circuits, for example, it can be applied to high-voltage switchgear. The fully enclosed insulated disconnect switch provided in this disclosure is independent of the electrical equipment using it. For example, when applied to switchgear, it can be directly replaced or repaired without disassembling or repairing the connected switches.

[0029] The following examples illustrate the fully enclosed insulated disconnect switch provided in this disclosure through several specific embodiments.

[0030] The fully enclosed insulated disconnect switch provided in this application includes at least one of an inner conical plug and an outer conical plug, as well as a disconnect switch, a grounding terminal head, solid insulating material, and a connecting plate.

[0031] That is, the fully enclosed insulated disconnect switch provided in this application embodiment includes: an inner conical plug, an outer conical plug, a disconnect switch, a grounding terminal, solid insulating material, and a connecting plate; or, the fully enclosed insulated disconnect switch includes: an inner conical plug, a disconnect switch, a grounding terminal, solid insulating material, and a connecting plate; or, the fully enclosed insulated disconnect switch includes: an outer conical plug, a disconnect switch, a grounding terminal, solid insulating material, and a connecting plate.

[0032] The following sections will describe the different scenarios mentioned above:

[0033] In the first scenario, the fully enclosed insulated disconnect switch comprises: an inner conical connector, an outer conical connector, a disconnect switch, a grounding terminal, solid insulating material, and a connecting plate. The inner conical connector and the outer conical connector can each be one or more. Figure 1 An example is shown using a fully enclosed insulated disconnect switch, which includes two inner conical sockets and one outer conical connector.

[0034] Reference Figure 1 As shown, the fully enclosed insulated disconnect switch includes a disconnect switch 11, an inner conical plug 12, an outer conical plug 13, a grounding terminal head 14, solid insulating material 15, and a connecting plate 16.

[0035] The disconnector switch 11 is enclosed within a solid insulating material 15. The disconnector switch 11 includes an insulating and sealed air chamber 111, an anchor-shaped moving contact 112, multiple stationary contacts (a first stationary contact 1131, a second stationary contact 1132, and a third stationary contact 1133), a moving contact insulating support rod 114, and a disconnector switch housing 115. The insulating and sealed air chamber is cylindrical, and the multiple stationary contacts are arranged at equal angular intervals on the same arc within the insulating and sealed air chamber 111. The plane containing the multiple stationary contacts is parallel to the bottom surface of the cylinder. The first stationary contact 1131, the second stationary contact 1132, and the third stationary contact 1133 are respectively connected to the outer conical connector 13, the inner conical connector 12, and the grounding terminal 14 through a metal conductor 17 within the solid insulating filling chamber.

[0036] Specifically, the first stationary contact 1131 is used to connect with the outer conical connector 13, the second stationary contact 1132 is used to connect with the inner conical connector 12, and the third stationary contact 1133 is used to connect with the grounding terminal 14.

[0037] The angle interval can be understood as the angle between the straight lines containing the center lines of two adjacent stationary contacts. In the case of a fully enclosed insulated disconnector switch being a three-position disconnector switch, the angle interval is 120°.

[0038] The solid insulating material 15 is a single unit and may be epoxy resin. This embodiment does not limit the type or variety of solid insulating material.

[0039] Optionally, the insulating and sealed gas cavity 111 can be vacuum-insulated or filled with insulating gas. The insulating gas can be SF6, nitrogen, dry air, or a mixture of multiple insulating gases such as SF6, nitrogen, and dry air in a preset proportion. This embodiment does not impose specific limitations.

[0040] It should be noted that, Figure 1 This is a schematic diagram of a fully enclosed insulated disconnector with a three-position configuration as an example. However, the disconnector provided in this embodiment is not limited to a three-position disconnector. When the required functions of the disconnector increase, more stationary contacts can be set to form a multi-position disconnector, such as a four-position disconnector. Similarly, the interval between two adjacent stationary contacts should be equal.

[0041] Specifically, when the fully enclosed insulated disconnect switch provided in this embodiment is a three-position disconnect switch, refer to... Figure 1 As shown, the first stationary contact 1131, the second stationary contact 1132, and the third stationary contact 1133 are arranged at equal angular intervals on their respective arcs. Specifically, the angle between the straight line containing the center line of the first stationary contact 1131 and the straight line containing the center line of the second stationary contact 1132 is 120°, the angle between the straight line containing the center line of the second stationary contact 1132 and the straight line containing the center line of the third stationary contact 1133 is 120°, and the corresponding central angle of the arc containing the anchor-shaped moving contact 112 is also 120°.

[0042] Optionally, the stationary contact may include three or more stationary contacts, such as four stationary contacts. For example, if the number of stationary contacts is four, the disconnecting switch also includes a fourth stationary contact, and the fully enclosed insulated disconnecting switch is a four-position disconnecting switch.

[0043] When the number of stationary contacts is n, the angle between the straight lines containing the center lines of two adjacent stationary contacts is 360° / n, the central angle corresponding to the arc of the anchor-shaped moving contact is also 360° / n, and the unit angle of rotation of the moving contact is 360° / (2*n).

[0044] Compared with other sealed, fully insulated multi-position disconnect switches in related technologies, by arranging multiple stationary contacts at equal angular intervals on the same arc, the cavity structure of the insulating sealed air chamber can be utilized to the maximum extent, increasing the distance between different electrodes and achieving greater insulation performance with a smaller insulating sealed air chamber. The insulation performance of the moving contact insulating support rod also ensures good insulation performance with a smaller insulating sealed air chamber. In summary, under the same insulation strength requirements, the fully enclosed insulated disconnect switch provided in this disclosure embodiment has a smaller size.

[0045] The inner conical connector 12 is embedded in one end of the solid insulating material and is used to connect with cables, conduits, or electrical equipment. The outer conical connector 13 is positioned opposite to the inner conical connector at the other end of the solid insulating material and is used to connect the fully enclosed insulating disconnect switch to the inner conical connector of electrical equipment, such as for connecting to the inner conical connector of switch cabinets or other electrical equipment.

[0046] The connecting plate 16 is circular and is disposed between the outer conical connector and the solid insulating material, and at the connector of the inner conical connector, for fixing to the connected electrical equipment.

[0047] One end of the moving contact insulating support rod 114 is connected to the anchor-shaped moving contact 112, and is used to drive the anchor-shaped moving contact to rotate. The anchor-shaped moving contact is anchor-shaped or arc-shaped. The moving contact insulating support rod drives the anchor-shaped moving contact to rotate so that the anchor-shaped moving contact can connect to two adjacent stationary contacts to achieve a state of mutual conduction between the two stationary contacts, or not connect to any two adjacent stationary contacts to achieve a state of disconnection.

[0048] The fully enclosed insulated disconnect switch provided in this embodiment includes at least one of an inner conical connector and an outer conical connector, as well as a disconnect switch, a grounding terminal head, solid insulating material, and a connecting plate; the disconnect switch is enclosed within the solid insulating material, and the disconnect switch includes: an insulating sealed air cavity, an anchor-shaped moving contact, multiple stationary contacts, a moving contact insulating support rod, and a disconnect switch housing; wherein, the insulating sealed air cavity is cylindrical, and the multiple stationary contacts are arranged at equal angular intervals on the same arc within the insulating sealed air cavity, and the plane containing the multiple stationary contacts is parallel to the cylindrical shape. The bottom surfaces are parallel; the first and second stationary contacts of the plurality of stationary contacts are respectively connected to the outer conical connector and / or the inner conical connector through metal conductors cast in the solid insulating material; the third stationary contact is connected to the grounding terminal head through metal conductors cast in the solid insulating material; the connecting plate is disposed between the outer conical connector and the solid insulating material, and / or the connecting plate is disposed at the connector of the inner conical connector; one end of the moving contact insulating support rod is connected to the anchor-shaped moving contact, for driving the anchor-shaped moving contact to rotate. In the fully enclosed insulating disconnect switch provided in the embodiments of this disclosure, when two adjacent stationary contacts are both connected to the anchor-shaped moving contact, a circuit is formed between the two adjacent stationary contacts; or when two adjacent stationary contacts are not simultaneously connected to the anchor-shaped moving contact, an open circuit is formed between the two adjacent stationary contacts. The inner conical connector can be used to connect to electrical equipment, cables, or conduits; the outer conical connector can be used to connect to electrical equipment. Multiple stationary contacts are arranged on the same arc, which maximizes the utilization of the internal structure of the insulating sealed air cavity. This allows for a smaller insulating sealed air cavity to be designed under the same insulation strength requirements, thereby reducing the size of the fully enclosed insulated disconnect switch. Furthermore, the fully enclosed insulated disconnect switch provided in this embodiment includes an inner conical connector and / or an outer conical connector. The inner conical connector allows connection to electrical equipment, cables, or conduits, while the outer conical connector allows connection to electrical equipment (e.g., switchgear). This improves the operability of installing and disassembling the fully enclosed insulated disconnect switch, facilitating user installation and removal.

[0049] Optionally, the fully enclosed insulated disconnect switch provided in this embodiment may further include a fiber optic temperature sensor, wherein the temperature probe 18 of the fiber optic temperature sensor is cast into the solid insulating material and is used to obtain the temperature of the fully enclosed insulated disconnect switch.

[0050] The fiber optic temperature sensor is connected to the display device via a fiber optic port, allowing users to read the temperature of the fully enclosed insulated disconnect switch through the display device.

[0051] For example, refer to Figure 1As shown, the anchor-shaped moving contact 112 is in contact with the first stationary contact 1131, and there is no electrical path between the three stationary contacts, meaning that the fully enclosed insulated disconnector is in the open state at this time; when the anchor-shaped moving contact 112... Figure 1 The current position shown is the starting position. When rotated 60° clockwise, the anchor-shaped moving contact 112 simultaneously contacts the first stationary contact 1131 and the second stationary contact 1132. At this time, the first stationary contact 1131 and the second stationary contact 1132 form an electrical path, meaning the fully enclosed insulated disconnector is in a conducting state. When the anchor-shaped moving contact 112... Figure 1 The current position shown is the starting position. When rotated 60° counterclockwise, the anchor-shaped moving contact 112 simultaneously contacts the first stationary contact 1131 and the third stationary contact 1133. At this time, the first stationary contact 1131 and the third stationary contact 1133 form an electrical path, that is, the fully enclosed insulated disconnect switch is in a grounded state.

[0052] exist Figure 1 In the fully enclosed insulated disconnect switch shown, the first stationary contact, the second stationary contact, and the third stationary contact are in contact with the anchor-shaped moving contact by means of sliding friction.

[0053] Optional, refer to Figure 2 As shown, the first stationary contact and the anchor-shaped moving contact are in contact by sliding friction. The second stationary contact and the third stationary contact are both wedge-shaped contacts and are provided with pressure mating surfaces. The second stationary contact and the third stationary contact are in pressure mating contact with the anchor-shaped moving contact through the pressure mating surfaces.

[0054] The end face 21 of the first stationary contact 1131 contacts the curved surface 31 of the anchor-shaped moving contact 112, allowing it to slide. The second stationary contact 1132 is provided with a pressure mating surface 22, and the third stationary contact 1133 is provided with a pressure mating surface 23, which are used to form pressure mating contacts with the anchor-shaped moving contact respectively through the pressure mating surfaces.

[0055] When the anchor-shaped moving contact 112 is in Figure 2In the indicated position, there is no electrical path between the three stationary contacts (first stationary contact, second stationary contact, and third stationary contact), and the fully enclosed insulated disconnector is in the open state. When the anchor-shaped moving contact 112 rotates 60° clockwise from its current position, the cross-section 32 at one end of the anchor-shaped moving contact 112 forms a pressure contact with the pressure contact surface 22 of the second stationary contact 1132, and the curved surface at the other end of the anchor-shaped moving contact 112 forms a sliding contact with the first stationary contact 1131. At this time, the first stationary contact 1131 and the second stationary contact 1132... Contact 1132 forms an electrical path, meaning the fully enclosed insulated disconnector is in a conducting state. When the anchor-shaped moving contact 112 rotates 60° counterclockwise from its current position, the cross-section 33 at one end of the anchor-shaped moving contact 112 forms a pressure contact with the pressure contact surface 23 of the third stationary contact 1133, and the curved surface at the other end of the anchor-shaped moving contact 112 slides into contact with the first stationary contact 1131. At this time, the first stationary contact 1131 and the third stationary contact 1133 form an electrical path, meaning the fully enclosed insulated disconnector is in a grounded state.

[0056] In the fully enclosed insulated disconnect switch provided in this embodiment, by setting the contact method between the second stationary contact and the third stationary contact and the anchor-shaped moving contact to pressure contact, the sliding friction between the second stationary contact and the anchor-shaped moving contact, and between the third stationary contact and the anchor-shaped moving contact, can be reduced, thereby reducing the generation of metal debris in the insulating sealing air cavity and reducing the probability of failure of the fully enclosed insulated disconnect switch.

[0057] In the second scenario, the fully enclosed insulated disconnector includes: an inner conical connector, a disconnector, a grounding terminal, solid insulating material, and a connecting plate. There can be one or more inner conical connectors. When the fully enclosed insulated disconnector includes multiple inner conical connectors, the location of the inner conical connectors is not specifically limited.

[0058] For example, refer to Figure 3 As shown, Figure 3 Taking the fully enclosed insulated disconnect switch including four inner conical plugs as an example, two of the inner conical plugs 12 are the first group, which are embedded in one end of the solid insulating material 111, and the other two inner conical plugs are the second group, which are arranged in a relative position to the first group of inner conical plugs at the other end of the solid insulating material 111.

[0059] The first and second stationary contacts of the plurality of stationary contacts are respectively connected to the first and second sets of inner conical connectors via metal conductors cast in the solid insulating material. The third stationary contact is connected to the grounding terminal 14 via a metal conductor cast in the solid insulating material. The connecting plate 16 is disposed at the connector of the inner conical connector and is used to fix electrical equipment connected to the fully enclosed insulated disconnect switch through the connector of the inner conical connector.

[0060] By setting multiple internal conical plug interfaces, the fully enclosed insulated disconnect switch can simultaneously connect multiple electrical devices, cables, or conduits.

[0061] In this embodiment, the shape and number of stationary contacts are not limited. For specific explanations and descriptions, please refer to the foregoing embodiments. They will not be repeated here.

[0062] In the third scenario, the fully enclosed insulated disconnector includes: an external tapered connector, a disconnector, a grounding terminal, solid insulating material, and a connecting plate. There can be one or more external tapered connectors. When the fully enclosed insulated disconnector includes multiple external tapered connectors, the location of the external tapered connectors is not specifically limited.

[0063] For example, refer to Figure 4 As shown, Figure 4 Taking the fully enclosed insulated disconnect switch including two external conical connectors 13 as an example, the two external conical connectors are arranged at opposite positions at both ends of the solid insulating material.

[0064] The first and second stationary contacts of the plurality of stationary contacts are respectively connected to two external conical connectors through metal conductors cast in the solid insulating material, and the third stationary contact is connected to the grounding terminal 14 through a metal conductor cast in the solid insulating material; the connecting plate 16 is disposed between the external conical connector and the solid insulating material, and is used to fix electrical equipment connected to the fully enclosed insulated disconnect switch through the external conical connector.

[0065] In this embodiment, the shape and number of stationary contacts are not limited. For specific explanations and descriptions, please refer to the foregoing embodiments. They will not be repeated here.

[0066] By setting multiple external conical connectors, the fully enclosed insulated disconnect switch can connect multiple electrical devices simultaneously.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A fully enclosed insulated disconnect switch, characterized in that, include: At least one of an inner conical connector and an outer conical connector, as well as a disconnecting switch, a grounding terminal head, solid insulating material, and a connecting plate; The disconnecting switch is enclosed within the solid insulating material. The disconnecting switch includes: an insulating sealed air cavity, an anchor-shaped moving contact, multiple stationary contacts, an insulating support rod for the moving contact, and a disconnecting switch housing. The insulating sealed air cavity is cylindrical. The multiple stationary contacts are arranged at equal angular intervals on the same arc within the insulating sealed air cavity, and the plane containing the multiple stationary contacts is parallel to the bottom surface of the cylinder. The first and second stationary contacts are respectively connected to the outer conical connector and the inner conical connector via metal conductors cast within the solid insulating material. The third stationary contact is connected to the grounding terminal via a metal conductor cast within the solid insulating material. The first stationary contact and the anchor-shaped moving contact are in contact via sliding friction. The second and third stationary contacts are both wedge-shaped contacts and have pressure mating surfaces. These pressure mating surfaces all face the first stationary contact, and both the second and third stationary contacts form pressure mating contact with the anchor-shaped moving contact through these pressure mating surfaces. The connecting plate is disposed between the outer conical connector and the solid insulating material, and / or the connecting plate is disposed at the connector of the inner conical connector; One end of the moving contact insulating support rod is connected to the anchor-shaped moving contact, which is used to drive the anchor-shaped moving contact to rotate. The anchor-shaped moving contact is anchor-shaped or arc-shaped, and the central angle corresponding to the arc of the anchor-shaped moving contact is equal to the angle between the straight line containing the center line of the adjacent stationary contact among the plurality of stationary contacts.

2. The fully enclosed insulated disconnect switch according to claim 1, characterized in that, The fully enclosed insulated disconnect switch includes the inner conical connector, and the inner conical connector may be one or more.

3. The fully enclosed insulated disconnect switch according to claim 1, characterized in that, The fully enclosed insulated disconnect switch includes the external tapered connector, and the external tapered connector may be one or more.

4. The fully enclosed insulated disconnect switch according to claim 1, characterized in that, The first stationary contact, the second stationary contact, and the third stationary contact respectively come into contact with the anchor-shaped moving contact through sliding friction.

5. The fully enclosed insulated disconnector according to any one of claims 1 to 4, characterized in that, The fully enclosed insulated disconnect switch also includes a fiber optic temperature sensor. The temperature probe of the fiber optic temperature sensor is cast into the solid insulating material to obtain the temperature of the fully enclosed insulated disconnect switch.

6. The fully enclosed insulated disconnect switch according to claim 1, characterized in that, The insulating and sealed gas cavity is either a vacuum or filled with insulating gas.

7. The fully enclosed insulated disconnect switch according to claim 1, characterized in that, The disconnecting switch also includes a fourth stationary contact.

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