Corrosion-resistant outdoor high-voltage alternating-current isolating switch

Abstract

The utility model relates to the technical field of isolating switches, and discloses an anti-corrosion outdoor high-voltage alternating-current isolating switch, which comprises a base, two insulators are fixed on the base, shoulders are fixed on the insulators, a power supply wire board and a load wire board are respectively fixed on the shoulders at the tops of the two insulators through bolts, and the load wire board is fixed on the power supply wire board. A power supply contact is fixed on the power supply wire board, a load contact is fixed on the load wire board, a knife switch is rotatably arranged on the load contact, two semicircular lantern rings are fixed at the bottom of the convex shoulder through bolts, a case is fixed on the semicircular lantern rings, a case cover is rotatably arranged on the case, a handle is fixed on the case cover, and a handle is fixed on the handle. The side face of the machine box is provided with a shutter opening. According to the anti-corrosion outdoor high-voltage alternating-current isolating switch, closing and electrification can be achieved by rotating the knife switch, the isolating switch can be prevented from being exposed outside through the case, and meanwhile waterproof and dustproof treatment can be conducted on the isolating switch so that the isolating switch can be prevented from being corroded by rainwater or dust.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, specifically a corrosion-resistant outdoor high-voltage AC disconnecting switch. Background Technology

[0002] Outdoor high-voltage AC disconnect switches are important electrical devices used in power systems. They are mainly used to isolate and switch circuits in high-voltage transmission lines and substations. They can reliably disconnect and close circuits under high-voltage conditions and are widely used in various fields of power systems to ensure the safe operation and maintenance of power systems and protect the safety of operators.

[0003] Most existing outdoor high-voltage AC disconnect switches are exposed to the elements during use. Over time, wind, sun, and dust will accelerate the corrosion and aging of the disconnect switches, thereby reducing their service life. However, the existing anti-corrosion measures are mostly to coat the surface of the disconnect switches with anti-corrosion coatings, which are not effective enough. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a corrosion-resistant outdoor high-voltage AC disconnect switch, solving the problem of poor corrosion resistance of outdoor high-voltage AC disconnect switches during use.

[0006] (II) Technical Solution

[0007] To achieve the goal of good corrosion resistance for the aforementioned outdoor high-voltage AC disconnect switch during use, this utility model provides the following technical solution: A corrosion-resistant outdoor high-voltage AC disconnect switch, comprising a base, two insulators fixed on the base, shoulders fixed on the insulators, a power line plate and a load line plate respectively fixed on the shoulders at the top of the two insulators by bolts, a power contact fixed on the power line plate, a load contact fixed on the load line plate, a knife switch rotatably mounted on the load contact, two semi-circular collars fixed to the bottom of the shoulders by bolts, a chassis fixed on the semi-circular collars, a cover rotatably mounted on the chassis, a handle fixed on the cover, and louvered windows provided on the side of the chassis;

[0008] The inner side of the semi-circular collar is fixed with a base plate by bolts. A fan is fixed at the bottom of the base plate. An inner air outlet valve is fixed in the middle of the base plate. A power outlet valve and a load outlet valve are fixed on both sides respectively. A connecting rod is rotatably connected to the switch via a pivot pin. The other end of the connecting rod is rotatably connected to a transition block via a pivot pin, and the transition block is fixedly connected to the box cover.

[0009] Preferably, the side of the cover near the load line plate is rotatably connected to the chassis via a hinge, and a sealing strip is provided between the cover and the chassis.

[0010] Preferably, the cover is rotatably connected to the switch via an adapter block and a connecting rod.

[0011] Preferably, the internal air outlet valve, the power supply air outlet valve, and the load air outlet valve are connected to the fan via ducts installed inside the base plate.

[0012] Preferably, the internal air outlet valve is located below the switch, the power supply air outlet valve is located inside the power supply contact, and the load air outlet valve is located inside the load contact.

[0013] Preferably, the power supply board is electrically connected to the power supply contacts, and the load board is electrically connected to the load contacts.

[0014] Preferably, the switch is movably connected to the power contact.

[0015] Compared with the prior art, this utility model provides a corrosion-resistant outdoor high-voltage AC disconnect switch, which has the following advantages:

[0016] 1. This corrosion-resistant outdoor high-voltage AC disconnect switch, through the enclosure composed of a chassis and cover, can cover the power contacts, load contacts, and the disconnect switch formed by the knife switch, avoiding exposure to sun and rain. Furthermore, the louvered windows can dissipate the heat generated by the components, thereby preventing the disconnect switch from being corroded by sun and rain.

[0017] 2. This corrosion-resistant outdoor high-voltage AC disconnect switch can blow air to the knife switch through the internal air outlet valve, to the power contact through the power outlet valve, and to the load contact through the load outlet valve. Therefore, when the power contact, load contact, and knife switch surfaces are wet, they can be quickly dried, keeping the power contact, load contact, and knife switch surfaces dry and preventing corrosion of the disconnect switch formed by the power contact, load contact, and knife switch. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the closing of the switch of this utility model;

[0021] Figure 4 This is a partial sectional view of the structural chassis of this utility model;

[0022] Figure 5This utility model Figure 4 A magnified view of the structure at point A in the middle.

[0023] The components are: 1. Base; 2. Insulator; 3. Shoulder; 4. Power line board; 5. Load line board; 6. Power contact; 7. Load contact; 8. Knife switch; 9. Circular collar; 10. Chassis; 11. Box cover; 12. Handle; 13. Louvered window; 14. Base plate; 15. Fan; 16. Internal air outlet valve; 17. Source air outlet valve; 18. Load air outlet valve; 19. Connecting rod; 20. Adapter block. Detailed Implementation

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please see Figure 1-5 This utility model provides a corrosion-resistant outdoor high-voltage AC disconnect switch, including a base 1, two insulators 2 fixed on the base 1, a shoulder 3 fixed on the insulator 2, a power line plate 4 and a load line plate 5 respectively fixed on the shoulder 3 at the top of the two insulators 2 by bolts, a power contact 6 fixed on the power line plate 4, a load contact 7 fixed on the load line plate 5, a switch 8 rotatably mounted on the load contact 7, two semi-circular collars 9 fixed on the bottom of the shoulder 3 by bolts, a housing 10 fixed on the semi-circular collars 9, a cover 11 rotatably mounted on the housing 10, a handle 12 fixed on the cover 11, and a louvered window 13 provided on the side of the housing 10;

[0026] A base plate 14 is fixed to the inner side of the semi-circular collar 9 by bolts. A fan 15 is fixed to the bottom of the base plate 14. An internal air outlet valve 16 is fixed to the middle of the base plate 14. A power outlet valve 17 and a load outlet valve 18 are fixed to the two sides respectively. A connecting rod 19 is rotated on the switch 8 by a pivot pin. The other end of the connecting rod 19 is rotated by a pivot pin to a transition block 20. The transition block 20 is fixedly connected to the cover 11. When a person holds the handle 12 and rotates the cover 11 downwards, the cover 11 can drive the switch 8 to rotate downwards through the connecting rod 19. When the switch 8 contacts the power contact 6, the circuit is closed and energized. At the same time, the cover 11 rotates onto the chassis 10 and seals from the top.

[0027] Furthermore, the side of the cover 11 closest to the load line plate 5 is rotatably connected to the chassis 10 via a hinge. A sealing strip is provided between the cover 11 and the chassis 10. The chassis 10 is composed of two half-boxes and is fixedly connected to the semi-circular collar 9. The semi-circular collar 9 is fixed to the shoulder 3 by bolts. When the cover 11 is rotated, the connecting rod 19 can drive the switch 8 to rotate as well, so that the switch 8 can be closed or disconnected.

[0028] Furthermore, the cover 11 is rotatably connected to the switch 8 via the adapter block 20 and the connecting rod 19. When the cover 11 is opened outward, the switch 8 can be rotated outward and disconnected via the adapter block 20 and the connecting rod 19. When the cover 11 is rotated inward, the switch 8 can be moved inward and closed via the adapter block 20 and the connecting rod 19.

[0029] Furthermore, the internal air outlet valve 16, the power outlet valve 17, and the load outlet valve 18 are connected to the fan 15 through ducts installed inside the base plate 14, so that the fan 15 can deliver air volume to the internal air outlet valve 16, the power outlet valve 17, and the load outlet valve 18 through the ducts installed inside the base plate 14.

[0030] Furthermore, the internal air outlet valve 16 is located below the switch 8, the power supply air outlet valve 17 is located inside the power supply contact 6, and the load air outlet valve 18 is located inside the load contact 7, so that the switch 8 can be dried by air blowing through the internal air outlet valve 16, the power supply contact 6 can be dried by air blowing through the power supply air outlet valve 17, and the load contact 7 can be dried by air blowing through the load air outlet valve 18.

[0031] Furthermore, the power supply board 4 is electrically connected to the power contact 6, and the load board 5 is electrically connected to the load contact 7, so that the power supply board 4 and the power contact 6 can be energized with the load board 5 and the load contact 7 through the switch 8.

[0032] Furthermore, the switch 8 is movably connected to the power contact 6. When the switch 8 contacts the power contact 6, the circuit is closed. At this time, the power contact 6, the switch 8, and the load contact 7 can be energized and power can be transmitted.

[0033] In use, the enclosure 10 and cover 11 cover the power contact 6, load contact 7, and knife switch 8 to prevent them from being exposed to sunlight and rain. The louvers 13 dissipate heat generated by the components, preventing corrosion from sun and rain. Furthermore, the fan 15, through ducts inside the base plate 14, delivers air to the internal air outlet valve 16, power outlet valve 17, and load outlet valve 18. This serves two purposes: firstly, to cool the disconnect switch during operation, and secondly, to allow the internal air outlet valve 16 to dissipate heat. Air is blown onto the switch 8, and through the power outlet valve 17, air can be blown onto the power contact 6, and through the load outlet valve 18, air can be blown onto the load contact 7. Therefore, when the surfaces of the power contact 6, load contact 7, and switch 8 are wet, they can be quickly dried. This not only avoids short circuits that may occur due to a humid environment, but also keeps the surfaces of the power contact 6, load contact 7, and switch 8 dry, preventing corrosion of the disconnecting switch formed by the power contact 6, load contact 7, and switch 8, thereby improving the service life of the disconnecting switch.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant outdoor high-voltage AC disconnect switch, comprising a base (1), characterized in that: Two insulators (2) are fixed on the base (1). A shoulder (3) is fixed on the insulator (2). A power line plate (4) and a load line plate (5) are fixed on the shoulder (3) at the top of the two insulators (2) respectively by bolts. A power contact (6) is fixed on the power line plate (4). A load contact (7) is fixed on the load line plate (5). A switch (8) is rotatably mounted on the load contact (7). Two semi-circular collars (9) are fixed to the bottom of the shoulder (3) by bolts. A chassis (10) is fixed on the semi-circular collars (9). A cover (11) is rotatably mounted on the chassis (10). A handle (12) is fixed on the cover (11). A louvered window (13) is provided on the side of the chassis (10). The inner side of the semi-circular collar (9) is fixed with a base plate (14) by bolts. A fan (15) is fixed at the bottom of the base plate (14). An inner air outlet valve (16) is fixed in the middle of the base plate (14). A power outlet valve (17) and a load outlet valve (18) are fixed on both sides respectively. A connecting rod (19) is rotated on the switch (8) by a pivot pin. The other end of the connecting rod (19) is rotated with a transition block (20) by a pivot pin. The transition block (20) is fixedly connected to the box cover (11).

2. The corrosion-resistant outdoor high-voltage AC disconnector according to claim 1, characterized in that: The cover (11) is rotatably connected to the chassis (10) via a hinge on the side near the load line plate (5), and a sealing strip is provided between the cover (11) and the chassis (10).

3. The corrosion-resistant outdoor high-voltage AC disconnector according to claim 1, characterized in that: The cover (11) is rotatably connected to the knife gate (8) via a transition block (20) and a connecting rod (19).

4. The corrosion-resistant outdoor high-voltage AC disconnector according to claim 1, characterized in that: The internal air outlet valve (16), the power outlet valve (17), and the load outlet valve (18) are connected to the fan (15) through ducts installed inside the base plate (14).

5. The corrosion-resistant outdoor high-voltage AC disconnector according to claim 1, characterized in that: The internal air outlet valve (16) is located below the switch (8), the power outlet valve (17) is located inside the power contact (6), and the load outlet valve (18) is located inside the load contact (7).

6. The corrosion-resistant outdoor high-voltage AC disconnector according to claim 1, characterized in that: The power supply board (4) is electrically connected to the power contact (6), and the load board (5) is electrically connected to the load contact (7).

7. The corrosion-resistant outdoor high-voltage AC disconnector according to claim 1, characterized in that: The switch (8) is movably connected to the power contact (6).

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