Anti-condensation high-voltage vacuum circuit breaker
By installing a drive fan and heating plate inside the dust cover of the high-voltage vacuum circuit breaker, combined with a nozzle and gear mechanism, condensation is prevented, the equipment life is extended, maintenance and repair are simplified, and the problem of carbonization of insulation materials caused by condensation is solved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INTEGRATED ELECTRONICS SYST LAB
- Filing Date
- 2025-07-24
- Publication Date
- 2026-05-29
AI Technical Summary
Existing high-voltage vacuum circuit breakers are prone to condensation due to temperature differences when used outdoors, which leads to carbonization of the insulation material and shortens the equipment's lifespan.
A high-voltage vacuum circuit breaker with anti-condensation function was designed. By installing a drive fan and a heating plate inside the dust cover, the heat blown out by the fan is evenly sprayed out through the connecting pipe and nozzle to prevent condensation. The dust cover is also easy to disassemble and maintain by means of a disassembly mechanism.
It effectively prevents condensation inside the high-voltage vacuum circuit breaker, extends the service life of the equipment, simplifies the maintenance and repair process, and avoids the need to disassemble the bolts.
Smart Images

Figure CN224304603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage vacuum circuit breaker technology, specifically a high-voltage vacuum circuit breaker with anti-condensation function. Background Technology
[0002] High-voltage vacuum circuit breakers are key switching devices used in power systems for high-voltage circuits (usually 3kV and above). Their core function is to connect or disconnect the circuit during normal operation and to quickly cut off short-circuit current or overload current during faults. At the same time, they utilize the insulation and arc-extinguishing characteristics of the vacuum interrupter to ensure operational safety and grid stability.
[0003] When existing high-voltage vacuum circuit breakers are used outdoors for extended periods, dust covers are typically installed on their surfaces to prevent dust accumulation. However, excessively high outdoor temperatures and excessively low internal temperatures can cause condensation to form on the surface, accelerating the carbonization of the insulation material and increasing the risk of short circuits, thus shortening the equipment's lifespan. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-voltage vacuum circuit breaker that prevents condensation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage vacuum circuit breaker with anti-condensation function, comprising a base, a dust cover, and a high-voltage vacuum circuit breaker body.
[0006] As described above, a dust cover is provided at the top of the base, and a high-voltage vacuum circuit breaker body is provided inside the dust cover. An anti-condensation mechanism extending into the dust cover is provided at the top of the dust cover. The anti-condensation mechanism includes a fixing frame provided at the top of the dust cover, a drive fan is installed inside the fixing frame, and a heating plate is provided at one end of the fixing frame near the drive fan.
[0007] As described above, both sides of the fixed frame are provided with connecting pipes extending into the dust cover, and one end of each of the two connecting pipes is provided with a nozzle. The dust cover is provided with an installation frame.
[0008] As described above, a motor is installed at one end of the mounting frame, and the output end of the motor is connected to a rotating rod via a coupling. Gears are provided on the surface of the rotating rod.
[0009] As described above, both ends of the gear are meshed with racks, a connecting plate is provided on one side of the two racks, and a connecting rod extending to the outside of the mounting frame is provided on one side of the connecting plate. The connecting rod is rotatably connected to the nozzle through a hinge seat.
[0010] As described above, the top of the base is provided with installation and disassembly mechanisms at both ends near the dust cover. The installation and disassembly mechanisms include fixed seats at both ends of the dust cover. The top of each of the two fixed seats is provided with a locking block extending into the interior. The locking blocks are welded to the dust cover. The locking blocks are symmetrically distributed at the top of the fixed seats.
[0011] As described above, the fixed base is provided with symmetrically distributed limiting plates inside, one end of the limiting plate is provided with a pull plate extending to the outside of the fixed base, a first spring is welded between the two limiting plates, and a locking rod extending into the inside of the locking block is provided on one side of the limiting plate.
[0012] As described above, the top of the locking rod is provided with a connecting seat, the interior of the connecting seat is provided with a T-shaped rod extending to the outside, a second spring is welded between the T-shaped rod and the connecting seat, and the top of the T-shaped rod is rotatably connected with a crossbar extending into the inside of the locking block.
[0013] Compared with existing technologies, this anti-condensation high-voltage vacuum circuit breaker has the following advantages:
[0014] I. This utility model enables the drive fan to expel the heat generated by the heating plate from the connecting pipes on both sides. The heat is then discharged into the nozzle through the connecting pipes, and the output of the motor drives the rack to move left and right. At the same time, the rack moves the connecting plate and the connecting rod, which in turn causes the nozzle to swing left and right. This allows the heat to be evenly sprayed out inside the dust cover, thus preventing condensation from forming on the high-voltage vacuum circuit breaker body inside the dust cover.
[0015] II. This utility model allows the T-shaped rod to be pressed against the second spring when the crossbar is pulled upwards, thus separating the crossbar from the locking block. Then, the two pull plates are pinched together, causing the pull plates to press against the first spring with the limiting plate. The limiting plate also causes the locking rod to move, separating the locking rod from the locking block. This allows the dust cover to be removed along with the locking block, facilitating the maintenance and repair of the internal high-voltage vacuum circuit breaker body. As a result, the bolts can be removed during the internal maintenance and repair of the high-voltage vacuum circuit breaker, and the dust cover can be quickly removed for convenient internal maintenance and repair.
[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the base of this utility model;
[0018] Figure 2 This is a three-dimensional cross-sectional structural diagram of the dust cover of this utility model;
[0019] Figure 3 This is a three-dimensional sectional view of the connector of this utility model;
[0020] Figure 4 This is a three-dimensional sectional view of the fixing frame of this utility model;
[0021] Figure 5 This is a three-dimensional sectional view of the fixing base of this utility model.
[0022] In the diagram: 1. Base; 2. Dust cover; 3. High-voltage vacuum circuit breaker body; 4. Anti-condensation mechanism; 401. Fixing frame; 402. Drive fan; 403. Heating plate; 404. Connecting pipe; 405. Nozzle; 406. Mounting frame; 407. Motor; 408. Rotating rod; 409. Gear; 410. Rack; 411. Connecting plate; 412. Connecting rod; 5. Installation and disassembly mechanism; 501. Fixing seat; 502. Locking block; 503. Limiting plate; 504. Pull plate; 505. First spring; 506. Locking rod; 507. Connecting seat; 508. T-shaped rod; 509. Second spring; 510. Crossbar. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figure 1 , Figure 2 and Figure 4 As shown, this utility model provides a technical solution: a high-voltage vacuum circuit breaker with anti-condensation, including a base 1, a dust cover 2 and a high-voltage vacuum circuit breaker body 3.
[0025] like Figure 1 As shown, a dust cover 2 is provided at the top of the base 1. The high-voltage vacuum circuit breaker body 3 is evenly distributed inside the dust cover 2. An anti-condensation mechanism 4 extending into the dust cover 2 is provided at the top of the dust cover 2. The anti-condensation mechanism 4 includes a fixing frame 401 provided at the top of the dust cover 2. A drive fan 402 is installed inside the fixing frame 401. An air inlet is provided on the side wall of the fixing frame 401. A heating plate 403 is provided at the end of the fixing frame 401 near the drive fan 402.
[0026] The dust cover 2 is used to block dust, and the heating plate 403 is powered on so that it can generate heat. Then, the fan 402 driven inside the fixed frame 401 blows out the heat from the heating plate 403.
[0027] like Figure 2 As shown, both sides of the fixed frame 401 are provided with connecting pipes 404 extending into the dust cover 2. One end of each connecting pipe 404 is provided with a nozzle 405. The dust cover 2 is provided with a mounting frame 406. One end of the mounting frame 406 is equipped with a motor 407. The output end of the motor 407 is connected to a rotating rod 408 through a coupling. The surface of the rotating rod 408 is provided with a gear 409.
[0028] Heat can be introduced into the nozzle 405 through the connecting pipe 404, and then the output end of the motor 407 can drive the rotating rod 408 and the gear 409 to rotate.
[0029] like Figure 4 As shown, both ends of the gear 409 are meshed with racks 410. A connecting plate 411 is provided on one side of the two racks 410. A connecting rod 412 extending to the outside of the mounting frame 406 is provided on one side of the connecting plate 411. The connecting rod 412 is rotatably connected to the nozzle 405 through a hinge seat.
[0030] The rotation of gear 409 enables rack 410 to move left and right. At the same time, the movement of rack 410 drives the connecting plate 411 and connecting rod 412 to move, thereby enabling nozzle 405 to swing left and right.
[0031] like Figure 1 , Figure 2 and Figure 4 As shown, by starting the drive fan 402, the heat generated by the heating plate 403 is discharged from the connecting pipes 404 on both sides. The heat is then discharged into the nozzle 405 through the connecting pipes 404. Then, the motor 407 is started, so that the output end of the motor 407 can drive the rotating rod 408 to rotate. At the same time, when the rotating rod 408 rotates, it can drive the gear 409 to rotate. When the gear 409 rotates, it can drive the racks 410 at both ends to move left and right. When the racks 410 move, they can drive the connecting plate 411 to move. When the connecting plate 411 moves, it can drive the connecting rod 412 on one side to move. When the connecting rod 412 moves, it can drive the nozzle 405 to swing left and right. This allows the heat to be evenly sprayed out inside the dust cover 2 through the nozzle 405, thereby preventing condensation from forming on the high-voltage vacuum circuit breaker body 3 inside the dust cover 2.
[0032] like Figure 5As shown, the top of the base 1 is provided with installation and disassembly mechanisms 5 at both ends near the dust cover 2. The installation and disassembly mechanism 5 includes a fixing seat 501 at both ends of the dust cover 2. The top of each fixing seat 501 is provided with a locking block 502 extending into the interior. The locking block 502 is welded to the dust cover 2. The locking blocks 502 are symmetrically distributed at the top of the fixing seat 501.
[0033] The dust cover 2 can drive the card block 502 to be inserted into the reserved slot inside the fixed base 501.
[0034] like Figure 5 As shown, the fixed base 501 is provided with symmetrically distributed limiting plates 503. One end of the limiting plate 503 is provided with a pull plate 504 extending to the outside of the fixed base 501. A first spring 505 is welded between the two limiting plates 503. A locking rod 506 extending into the inside of the locking block 502 is provided on one side of the limiting plate 503.
[0035] By pinching the two pull plates 504 together, the pull plates 504 can drive the limiting plate 503 to squeeze the first spring 505, and the limiting plate 503 can drive the locking rod 506 to move when it moves.
[0036] like Figure 3 As shown, a connecting seat 507 is provided at the top of the locking rod 506, and a T-shaped rod 508 extending to the outside is provided inside the connecting seat 507. A second spring 509 is welded between the T-shaped rod 508 and the connecting seat 507. A crossbar 510 extending into the inside of the locking block 502 is rotatably connected to the top of the T-shaped rod 508.
[0037] By pulling the crossbar 510, the T-shaped bar 508 can be moved, and the T-shaped bar 508 can compress the second spring 509 when it moves.
[0038] like Figure 1 , Figure 3 and Figure 5As shown, by pulling the horizontal bar 510 upward, the horizontal bar 510 can move the T-shaped bar 508, which in turn can compress the second spring 509. This allows the horizontal bar 510 to separate from the slot inside the locking block 502. Then, the two pull plates 504 are pinched together, causing the pull plates 504 to move the limiting plate 503. This allows the limiting plate 503 to compress the first spring 505, and the limiting plate 503 to move the locking rod 506. This allows the locking rod 506 to separate from the locking block 502, and the dust cover 2 can be removed along with the locking block 502. After the dust cover 2 is removed, it is convenient to maintain and repair the internal high-voltage vacuum circuit breaker body 3. This avoids the need to disassemble the bolts during internal maintenance and repair of the high-voltage vacuum circuit breaker, and the quick removal of the dust cover 2 facilitates internal maintenance and repair.
[0039] Working principle: By starting the drive fan 402, the heat generated by the heating plate 403 is blown out through the connecting pipes 404 on both sides. Then, the heat is discharged into the nozzle 405 through the connecting pipes 404. Starting the motor 407 can drive the rotating rod 408 and the gear 409 to rotate. When the gear 409 rotates, it can drive the racks 410 at both ends to move left and right. At the same time, when the racks 410 move, they can drive the connecting plate 411 and the connecting rod 412 to move. When the connecting rod 412 moves, it can drive the nozzle 405 to swing left and right. This allows the heat to be sprayed evenly inside the dust cover 2 through the nozzle 405, thereby preventing condensation from forming on the high-voltage vacuum circuit breaker body 3 inside the dust cover 2.
[0040] 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 high-voltage vacuum circuit breaker with anti-condensation capability, comprising a base (1), a dust cover (2), and a high-voltage vacuum circuit breaker body (3), characterized in that: The top of the base (1) is provided with a dust cover (2), and the dust cover (2) is provided with a uniformly distributed high-voltage vacuum circuit breaker body (3). The top of the dust cover (2) is provided with an anti-condensation mechanism (4) extending into the interior. The anti-condensation mechanism (4) includes a fixing frame (401) provided at the top of the dust cover (2). A drive fan (402) is installed inside the fixing frame (401). A heating plate (403) is provided at one end of the fixing frame (401) near the drive fan (402).
2. The high-voltage vacuum circuit breaker with anti-condensation according to claim 1, characterized in that: Both sides of the fixed frame (401) are provided with connecting pipes (404) extending into the dust cover (2), and one end of each of the two connecting pipes (404) is provided with a nozzle (405). The dust cover (2) is provided with an installation frame (406).
3. A high-voltage vacuum circuit breaker with anti-condensation as described in claim 2, characterized in that: A motor (407) is mounted on one end of the mounting frame (406), and the output end of the motor (407) is connected to a rotating rod (408) via a coupling. A gear (409) is provided on the surface of the rotating rod (408).
4. A high-voltage vacuum circuit breaker with anti-condensation as described in claim 3, characterized in that: Both ends of the gear (409) are meshed with racks (410), and a connecting plate (411) is provided on one side of the two racks (410). A connecting rod (412) extending to the outside of the mounting frame (406) is provided on one side of the connecting plate (411). The connecting rod (412) is rotatably connected to the nozzle (405) through a hinge seat.
5. A high-voltage vacuum circuit breaker with anti-condensation as described in claim 1, characterized in that: The base (1) is provided with an installation and disassembly mechanism (5) at both ends near the dust cover (2). The installation and disassembly mechanism (5) includes a fixing seat (501) at both ends of the dust cover (2). The top of each fixing seat (501) is provided with a locking block (502) extending into the interior. The locking block (502) is welded to the dust cover (2). The locking blocks (502) are symmetrically distributed at the top of the fixing seat (501).
6. A high-voltage vacuum circuit breaker with anti-condensation as described in claim 5, characterized in that: The fixed base (501) is provided with symmetrically distributed limiting plates (503). One end of the limiting plate (503) is provided with a pull plate (504) extending to the outside of the fixed base (501). A first spring (505) is welded between the two limiting plates (503). A locking rod (506) extending into the inside of the locking block (502) is provided on one side of the limiting plate (503).
7. A high-voltage vacuum circuit breaker with anti-condensation as described in claim 6, characterized in that: The locking rod (506) has a connecting seat (507) at its top end. The connecting seat (507) has a T-shaped rod (508) extending to the outside. A second spring (509) is welded between the T-shaped rod (508) and the connecting seat (507). The top end of the T-shaped rod (508) is rotatably connected to a crossbar (510) extending into the inside of the locking block (502).