Intelligent digitized isolator

Abstract

The utility model discloses an intelligent digitization isolator relates to isolator technical field, including base and symmetrical setting on the insulator of base, be provided with silica gel knife gap between two insulators, two insulators are connected with silica gel knife gap through lock catch and swing support respectively, and one side of two insulators away from silica gel knife gap all is provided with connecting structure, adopts silica rubber to cover knife gap completely, and the problem of traditional isolator live body nakedness has been solved thoroughly, and the sealing property and insulation effect are further promoted in the close coordination of insulating cover and other components, through the high reliability mechanical structure of multi -contact connector, lock nut and lock catch structure construction, reduce maintenance frequency, avoid arc discharge risk, simultaneously, through current transformer real -time monitoring load current, support remote monitoring, realize digitization management.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of disconnecting switch, especially to a kind of intelligent digital disconnecting switch. BACKGROUND

[0002] Traditional insulation switch is the key equipment in power system, mainly undertakes circuit isolation, protection and control function.

[0003] In prior art, early mechanical switch usually adopts simple mechanical structure, realizes on-off by physical contact, but there are problems such as easy wear and short service life, therefore, improved insulation switch introduces ceramic or epoxy resin insulating material, improves voltage resistance and insulation performance, but live parts are still partially exposed, leading to insufficient sealing and unable to completely avoid external pollution.

[0004] Firstly, improved insulation switch is subject to structural design, and opening is still needed to be reserved at live conductor connecting part for operation and maintenance, typical exposed parts include knife switch rotating joint, wiring terminal connecting place and operating mechanism transmission part, breathing effect is generated during knife switch opening and closing, humid air is inhaled, leading to poor overall sealing;Secondly, improved insulation switch has typical mechanical defects, for example, single-point contact design leads to high contact resistance discreteness, gear meshing gap leads to operation torque fluctuation increase, bolt loosening rate is high in vibration environment;Finally, intelligent degree of improved insulation switch is insufficient, state monitoring is missing and fault early warning capability is missing, leading to low operation and maintenance efficiency.

[0005] Therefore, an intelligent digital disconnecting switch is provided to solve the above problems. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing an intelligent digital disconnecting switch, which solves the problem of live body exposure in the atmosphere without changing the traditional operation mode, thereby completely solving the problems of short circuit grounding caused by ice, snow, rain, wind, birds and animals, and corrosion caused by coastal and harsh environment.

[0007] To achieve the above object, the utility model provides an intelligent digital disconnecting switch, which comprises a base and insulators symmetrically arranged on the base, a silica gel knife switch is arranged between the two insulators, the two insulators are connected with the silica gel knife switch through a lock catch and a rotary support respectively, and a connecting structure is arranged on the side of the two insulators away from the silica gel knife switch.

[0008] Preferably, the connection structure includes a connecting post, a connecting contact, a strip conductor, a terminal block, a lock nut, and an insulating cover. The connecting contact is disposed on the connecting post, the strip conductor is fixedly disposed inside the connecting contact by the lock nut, the other end of the strip conductor is fixedly connected to the terminal block, and the terminal block passes through the lock nut and extends into the insulating cover.

[0009] Preferably, the insulating cover is configured as a truncated cone shape with tapered ends, the bottom diameter of the truncated cone is larger than the top diameter of the truncated cone, and a current transformer is provided on the bottom inner wall of the truncated cone, the diameter of the current transformer being larger than the diameter of the strip conductor.

[0010] Preferably, each of the two insulators has a multi-contact connector at its inner top, and the multi-contact connector abuts against the bottom of the silicone knife switch.

[0011] Preferably, the base is provided with multiple mounting holes, and each of the two insulators is provided with a mounting screw at its bottom. The mounting screw passes through the mounting hole and is connected to a mounting nut. The diameter of the mounting nut is larger than the diameter of the mounting hole.

[0012] Preferably, the latch includes a hook and a pull ring, the hook is fixedly mounted on the insulator, the pull ring is fixedly mounted on the silicone knife switch, and the hook and the pull ring are connected by a rolling bearing.

[0013] Therefore, the intelligent digital disconnect switch of this utility model with the above-described structure has the following beneficial effects: (1) This solution uses silicone rubber to completely cover the knife switch, which completely solves the problem of exposed live parts of traditional disconnect switches. The insulating cover adopts a frustum-shaped structure with reduced ends, which can be closely matched with other components to further improve the sealing and insulation effect. (2) The insulators in this scheme use 304 stainless steel spring multi-contact joints to increase the contact area and ensure conductivity stability. The strip conductor is fixed by anti-loosening nuts to avoid loosening due to vibration. The hook and pull ring are connected by rolling bearings to ensure smooth opening and closing and prevent short-circuit electrodynamics from causing tripping. Through multi-faceted optimization, a highly reliable mechanical structure is constructed to reduce maintenance frequency and avoid the risk of arc discharge. (3) This solution monitors the load current in real time, optimizes the communication strategy in energy-saving mode, reduces energy consumption, and automatically sends alarm information to maintenance personnel when an abnormality is detected. It supports remote monitoring on mobile or PC.

[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Fig. 1 This is a structural diagram of an intelligent digital disconnector according to the present invention; Fig. 2 This is a structural diagram of the base of an intelligent digital disconnect switch according to this utility model; Fig. 3 This is a structural diagram of the connection structure of an intelligent digital disconnect switch according to this utility model.

[0016] The components include: 1. Base; 2. Insulator; 3. Silicone knife switch; 4. Lock; 5. Slewing support; 6. Hook; 7. Pull ring; 8. Rolling bearing; 9. Connection structure; 10. Mounting hole; 11. Mounting screw; 12. Mounting nut; 13. Multi-contact connector; 14. Connecting post; 15. Connecting contact; 16. Strip conductor; 17. Terminal block; 18. Anti-loosening nut; 19. Insulating cover; 20. Current transformer. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship will also change accordingly.

[0019] Example like Figs. 1-3 As shown, this utility model provides an intelligent digital disconnect switch, including a base 1 and insulators 2 symmetrically arranged on the base 1. The insulators 2 are alicyclic epoxy resin insulators produced by APG process, which have outdoor properties such as waterproof, self-cleaning, UV resistance and atmospheric oxidation resistance. Its compact structure makes the fit between the insulators 2 and the silicone knife switch 3 tighter, and the contact part is in a relatively closed state when the switch is closed.

[0020] The base 1 has multiple mounting holes 10, and the bottom of each of the two insulators 2 is provided with mounting screws 11. The mounting screws 11 pass through the mounting holes 10 and are connected to the mounting nuts 12. The diameter of the mounting nuts 12 is larger than the diameter of the mounting holes 10.

[0021] A silicone knife switch 3 is provided between two insulators 2. The two insulators 2 are connected to the silicone knife switch 3 through a locking buckle 4 and a slewing support 5, respectively. A multi-contact connector 13 is provided at the top of the inside of each of the two insulators 2. The multi-contact connector 13 abuts against the bottom of the silicone knife switch 3. The multi-contact connector 13 can increase the effective contact area and ensure excellent conductivity. In this embodiment, the multi-contact connector 13 is made of 304 stainless steel spring sheet, which can maintain sufficient elasticity and ensure tight contact of the contacts. The silicone knife switch 3 is completely covered with silicone rubber, which truly realizes the fully enclosed design of dynamic equipment and ensures that there is no exposed live part of the product.

[0022] The latch 4 includes a hook 6 and a pull ring 7. The hook 6 is fixedly mounted on the insulator 2, and the pull ring 7 is fixedly mounted on the silicone knife switch 3. The hook 6 and the pull ring 7 are connected by a rolling bearing 8. The unique latch design ensures that the knife switch will not be disengaged from the closed position due to short-circuit electrodynamics, allowing for smooth and unimpeded opening. At the same time, both the hook 6 and the pull ring 7 are made of high-strength, environmentally friendly, and thermoplastic plastic alloy, which can effectively resist aging and ensure that the disconnecting switch can be used stably for a long time.

[0023] Both insulators 2 are provided with a connection structure 9 on the side away from the silicone knife switch 3. The connection structure 9 includes a connecting post 14, a connecting contact 15, a strip conductor 16, a terminal block 17, a lock nut 18, and an insulating cover 19. The connecting contact 15 is provided on the connecting post 14. The strip conductor 16 is fixedly provided inside the connecting contact 15 by the lock nut 18. The other end of the strip conductor 16 is fixedly connected to the terminal block 17. The terminal block 17 passes through the lock nut 18 and extends into the insulating cover 19.

[0024] The insulating cover 19 is designed as a truncated cone shape with tapered ends. The bottom diameter of the truncated cone is larger than the top diameter. A current transformer 20 is installed on the inner wall of the bottom of the truncated cone. The diameter of the current transformer 20 is larger than the diameter of the strip conductor 16. The current transformer 20 monitors the operating status of the disconnecting switch online. When a fault is detected in the fully enclosed disconnecting switch, an alarm notification can be automatically sent to the operation and maintenance personnel. The operation and maintenance personnel can view the operating parameters and monitoring data of the switchgear in real time through mobile terminals or computers, thereby significantly improving the stability of power supply and the safety of operation and maintenance work, and promoting the digital management process of disconnecting switchgear.

[0025] Therefore, this utility model adopts an intelligent digital disconnect switch with the above-mentioned structure. The knife switch is completely covered with silicone rubber, which completely solves the problem of exposed live parts in traditional disconnect switches. The insulating cover is closely integrated with other components to further improve the sealing and insulation effect. A highly reliable mechanical structure is constructed through multi-contact joints, anti-loosening nuts and locking structures to reduce maintenance frequency and avoid the risk of arc discharge. At the same time, the load current is monitored in real time through a current transformer, supporting remote monitoring and realizing digital management.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. An intelligent digital disconnect switch, characterized in that, It includes a base and insulators symmetrically arranged on the base. A silicone knife switch is provided between the two insulators. The two insulators are respectively connected to the silicone knife switch by a latch and a slewing support. A connection structure is provided on the side of the two insulators away from the silicone knife switch. The connection structure includes a connecting post, a connecting contact, a strip conductor, a terminal block, a lock nut, and an insulating cover. The connecting contact is disposed on the connecting post. The strip conductor is fixedly disposed inside the connecting contact by the lock nut. The other end of the strip conductor is fixedly connected to the terminal block. The terminal block passes through the lock nut and extends into the insulating cover.

2. The intelligent digital disconnect switch according to claim 1, characterized in that, The insulating cover is configured as a truncated cone shape with tapered ends. The bottom diameter of the truncated cone is larger than the top diameter. A current transformer is provided on the inner wall of the bottom of the truncated cone. The diameter of the current transformer is larger than the diameter of the strip conductor.

3. The intelligent digital disconnect switch according to claim 1, characterized in that, Both insulators have multi-contact connectors at their inner top ends, which abut against the bottom of the silicone knife switch.

4. The intelligent digital disconnect switch according to claim 1, characterized in that, The base is provided with multiple mounting holes, and each of the two insulators is provided with a mounting screw at its bottom. The mounting screw passes through the mounting hole and is connected to a mounting nut. The diameter of the mounting nut is larger than the diameter of the mounting hole.

5. The intelligent digital disconnect switch according to claim 1, characterized in that, The latch includes a hook and a pull ring. The hook is fixedly mounted on the insulator, and the pull ring is fixedly mounted on the silicone knife switch. The hook and the pull ring are connected by a rolling bearing.

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