Sealing device for circuit breaker and isolating switch

Abstract

The utility model relates to a sealing device for a circuit breaker and an isolating switch, which comprises an upper isolating switch module, a lower circuit breaker module, a first bottom plate positioned on the rear side of the isolating switch module, a second bottom plate positioned on the rear side of the circuit breaker module, a first cover body, a first sealing element, a second cover body and a second sealing element, the first cover body is detachably installed on the front side of the first bottom plate, the first sealing piece is located between the first cover body and the first bottom plate, the second cover body is detachably installed on the front side of the second bottom plate, the second sealing piece is located between the second cover body and the second bottom plate, and the first cover body and the second cover body are both made of stainless steel materials. By adopting the scheme, the sealing device for the circuit breaker and the isolating switch is provided, wherein the first sealing element is arranged between the first cover body and the first bottom plate, and the second sealing element is arranged between the second cover body and the second bottom plate, so that the waterproof, anti-condensation and anti-corrosion capabilities are improved.

Description

Technical Field

[0001] This utility model relates to a sealing device for circuit breakers and disconnect switches. Background Technology

[0002] An environmental protection cabinet is a device used in power systems, especially in power distribution networks. It is mainly used to protect and control the safe operation of power lines and equipment. The characteristic of the environmental protection cabinet is that its design takes into account the needs of environmental protection and energy conservation, and it is made of environmentally friendly materials to reduce the impact on the environment.

[0003] Because the environmental protection cabinet contains a large number of electronic components, and in environments with large temperature differences, condensation is likely to occur inside the equipment. That is, moisture in the air condenses into water droplets when it cools down. These water droplets may affect the insulation performance of electrical equipment or even cause a short circuit.

[0004] Therefore, how to improve the sealing performance of environmental protection cabinets has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sealing device for circuit breakers and disconnect switches, which improves the ability to prevent water, condensation and corrosion by setting a first sealing element between the first cover and the first base plate and a second sealing element between the second cover and the second base plate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes an upper disconnect switch module, a lower circuit breaker module, a first base plate located behind the disconnect switch module, and a second base plate located behind the circuit breaker module. It also includes a first cover, a first seal, a second cover, and a second seal. The first cover is detachably installed on the front side of the first base plate, and the first seal is located between the first cover and the first base plate. The second cover is detachably installed on the front side of the second base plate, and the second seal is located between the second cover and the second base plate. Both the first cover and the second cover are made of stainless steel.

[0007] The present invention is further configured such that: the first cover includes a first mounting plate, the second cover includes a second mounting plate, the first mounting plate is located on the front side of the first base plate, the second mounting plate is located on the front side of the second base plate, the first sealing member is square and a first through hole is provided on the first mounting plate, the first sealing member is provided with a third through hole corresponding to the first through hole, the second sealing member is square and a second through hole is provided on the second mounting plate, and the second sealing member is provided with a fourth through hole corresponding to the second through hole.

[0008] The present invention is further configured such that: the second base plate includes an upwardly protruding limiting segment and a limiting groove located on the left side of the limiting segment; the first base plate includes a bottom mating segment; the mating segment is inserted into the limiting groove and its right end face abuts against the limiting segment.

[0009] The present invention is further configured such that: the second cover includes an upper cover plate at the top, a lower surrounding seat located below the upper cover plate, and a receiving cavity located between the upper cover plate and the lower surrounding seat, wherein the upper cover plate and the lower surrounding seat are detachably connected; and the first cover includes a lower cover plate located above the upper cover plate and an upper surrounding seat located above the lower cover plate.

[0010] The present invention is further configured to include a sealing module located on a second cover, the second cover having an energy storage knob, the energy storage knob including a rotating shaft, the rotating shaft being rotatably mounted on a lower surrounding seat, and the sealing module including a sealing ring, the sealing ring being located circumferentially on the rotating shaft and abutting against the lower surrounding seat.

[0011] The present invention is further configured to include an aviation socket, the second cover including a mounting position for the aviation socket to be installed, and the lower surround including a first baffle located above the mounting position and a second baffle located to the left of the mounting position.

[0012] The present invention is further configured such that: the lower surrounding seat includes a mounting hole for inserting an aviation socket; the aviation socket includes a working section and a limiting seat located in the receiving cavity; the limiting seat is detachably connected to the working section; the limiting seat includes a limiting plate and an insertion section; the insertion section is located in front of the mounting hole; and the limiting plate is located in the receiving cavity and is detachably connected to the inner wall of the lower surrounding seat.

[0013] The present invention is further configured such that: a screw hole is provided in the working section, and an external thread is provided in the circumferential direction of the insertion section.

[0014] By adopting the above technical solution, 1. the first and second covers are made of stainless steel, which effectively prevents corrosion; 2. the combination of the first cover, the first seal, the second cover, and the second seal forms a fully sealed environment, effectively preventing external pollutants such as dust and moisture from entering and protecting the internal electrical equipment; 3. because the second cover and the second base plate are detachably connected, and the first cover and the first base plate are detachably connected, the circuit breaker module and the disconnect switch module are two independent modules. Disassembling and assembling the first and second covers facilitates the maintenance and inspection of the components inside the circuit breaker module and the disconnect switch module, thereby improving the overall service life of the environmental protection cabinet. Attached Figure Description

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a perspective view of a specific embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of the rear view of this utility model;

[0018] Figure 3 This is an exploded view of the front view of this utility model;

[0019] Figure 4 This is an exploded view of the first base plate, the second base plate, the first sealing element, and the second sealing element in this utility model;

[0020] Figure 5 for Figure 2 Enlarged view of A in the middle;

[0021] Figure 6 for Figure 2 Enlarged view of B in the middle;

[0022] Figure 7 for Figure 3 Enlarged view of C;

[0023] Figure 8 for Figure 3 Enlarged view of D;

[0024] Figure 9 This is a perspective view of the lower surrounding seat in this utility model.

[0025] In the diagram: 1 - Disconnect switch module;

[0026] 2-Circuit breaker module;

[0027] 3-First base plate, 31-Matching section;

[0028] 4-Second base plate, 41-Limiting section, 42-Limiting groove;

[0029] 5-First cover body, 51-Lower cover plate, 52-Upper ring seat, 53-First mounting plate, 531-First perforation;

[0030] 6-First seal, 61-Third perforation;

[0031] 7-Second cover, 71-Upper cover plate, 72-Lower surround seat, 721-First baffle, 722-Second baffle, 73-Mounting hole, 74-Energy storage knob, 741-Rotating shaft, 75-Mounting position, 76-Second mounting plate, 761-Second through hole, 77-Accommodation cavity;

[0032] 8-Second seal, 81-Fourth perforation;

[0033] 9-Sealing module, 91-Sealing ring;

[0034] 10-Aviation socket, 101-Working section, 1011-Screw hole, 102-Limit seat, 1021-Limit plate, 1022-Insertion section, 10221-External thread. Detailed Implementation

[0035] 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.

[0036] like Figures 1-9As shown, this utility model discloses a sealing device for a circuit breaker and a disconnecting switch, including an upper disconnecting switch module 1 for completely isolating live parts from the power supply during equipment maintenance or repair; a lower circuit breaker module 2 for cutting off and connecting the circuit under normal or fault conditions, with arc-extinguishing capability and protection function; a first base plate 3 located behind the disconnecting switch module 1; and a second base plate 4 located behind the circuit breaker module 2 (the working principle and configuration of the disconnecting switch module 1 and the circuit breaker module 2 are prior art and will not be specifically described here). The first base plate 3 and the second base plate 4 are usually fixed on the frame of the environmental protection cabinet, respectively supporting and fixing the disconnecting switch module 1 and the circuit breaker module 2. It also includes a first cover 5, a first sealing element 6, a second cover 7, and a second sealing element 8. The first cover 5 is detachably installed on the front side of the first base plate 3 by bolts or other means, and the first sealing element 6 is located between the first cover 5 and the first base plate 3. The second cover 7 is detachably installed on the front side of the second base plate 4 by means of bolts, etc., and the second sealing element 8 is located between the second cover 7 and the second base plate 4. Both the first cover 5 and the second cover 7 are made of stainless steel. 1. Because the first cover 5 and the second cover 7 are made of stainless steel, they can effectively prevent corrosion. 2. The combination of the first cover 5, the first sealing element 6, the second cover 7 and the second sealing element 8 forms a fully sealed environment, effectively preventing external pollutants such as dust and moisture from entering and protecting the internal electrical equipment. 3. Because the second cover 7 is detachably connected to the second base plate 4 and the first cover 5 is detachably connected to the first base plate 3, the circuit breaker module 2 and the disconnecting switch module 1 are two independent modules. By disassembling and assembling the first cover 5 and the second cover 7, it is convenient to maintain and inspect the components inside the circuit breaker module 2 and the disconnecting switch module 1, thereby improving the overall service life of the environmental protection cabinet.

[0037] The first cover 5 includes a first mounting plate 53, and the second cover 7 includes a second mounting plate 76. The first mounting plate 53 is located on the front side of the first base plate 3, and the second mounting plate 76 is located on the front side of the second base plate 4. The first sealing member 6 is square in shape, and the first mounting plate 53 has a first through hole 531. The first sealing member 6 has a third through hole 61 corresponding to the first through hole 531. The second sealing member 8 is square in shape, and the second mounting plate 76 has a second through hole 761. The second sealing member 8 has a fourth through hole 81 corresponding to the second through hole 761. Typically, a connector (such as a bolt) can be inserted into the first through hole 531 to mate with the third through hole 61, and into the second through hole 761 to mate with the fourth through hole 81. The first sealing element 6 is fixed to the first mounting plate 53 by means of perforation 81. Then, the first cover 5 is fixed to the first base plate 3, and the second cover 7 is fixed to the second base plate 4. At this time, the first sealing element 6 can be stably located between the first cover 5 and the first mounting plate 53, and the second sealing element 8 can be stably located between the second cover 7 and the second mounting plate 76. Thus, water droplets condensing from the outside will be blocked by the first sealing element 6 and the second sealing element 8 before entering the space between the first cover 5 and the first base plate 3 and the space between the second cover 7 and the second base plate 4, and thus cannot enter. This achieves a full-range seal between the first cover 5 and the first base plate 3 and the second cover 7 and the second base plate 4 by the first sealing element 6 and the second sealing element 8.

[0038] The second base plate 4 includes an upwardly protruding limiting section 41 and a limiting groove 42 located on the left side of the limiting section 41. The first base plate 3 includes a bottom mating section 31. The mating section 31 is inserted into the limiting groove 42 and its right end face abuts against the limiting section 41. During the installation of the disconnector module 1 and the circuit breaker module 2, the mating section 31 of the first base plate 3 can be located in the limiting groove 42 of the second base plate 4 after it is fixed, thereby determining the relative position of the disconnector module 1 and the circuit breaker module 2, accurately positioning them and facilitating their installation.

[0039] The second cover 7 includes an upper cover plate 71, a lower surround seat 72 located below the upper cover plate 71, and a receiving cavity 77 located between the upper cover plate 71 and the lower surround seat 72. The upper cover plate 71 and the lower surround seat 72 are detachably connected by bolts or other means. The first cover 5 includes a lower cover plate 51 located above the upper cover plate 71 and an upper surround seat 52 located above the lower cover plate 71. Since the upper cover plate 71 and the lower surround seat 72 are detachably connected, the various electronic components inside the circuit breaker module 2 can be inspected by removing the upper cover plate 71. Similarly, the lower cover plate 71 can be removed by removing the lower cover plate 72. The plate 51 can be separated from the upper ring seat 52 to allow for the maintenance of electronic components inside the disconnect switch module 1. At the same time, since the upper cover plate 71 is located below the lower cover plate 51, when it is necessary to maintain the internal components of the disconnect switch module 1 and the circuit breaker module 2, the first base plate 3 or the second base plate 4 must be removed from the environmental protection cabinet before the lower cover plate 51 or the upper cover plate 71 can be disassembled to access the internal components. This allows for separate maintenance of the two independent modules, thus avoiding accidental contact with components in the other module and ensuring that the two modules do not interfere with each other.

[0040] It also includes a sealing module 9 located on the second cover 7. The second cover 7 has an energy storage knob 74, which can achieve fast and reliable opening and closing operations by pre-storing energy in the circuit breaker module 2, improving the response speed and reliability of the circuit breaker module 2, reducing operating force and arc duration, and extending the service life of the equipment. This is existing technology. The linkage structure will not be specifically described here. The energy storage knob 74 includes a rotating shaft 741, which is rotatably mounted on the lower surrounding seat 72. The sealing module 9 includes a sealing ring 91, which is located circumferentially on the rotating shaft 741 and abuts against the lower surrounding seat 72. It is worth noting that the sealing module 9 in this embodiment includes sealing rings 91 set in multiple places such as operation, indication, and buttons, thereby improving the sealing effect and preventing external water droplets from entering the interior of the first cover 5 and the second cover 7.

[0041] In addition, it includes an aviation socket 10 through which electronic component points are led out. The second housing 7 includes a mounting position 75 for the aviation socket 10 to be installed. The lower surround seat 72 includes a first baffle 721 located above the mounting position 75 and a second baffle 722 located to the left of the mounting position 75. The design of the aviation socket 10 provides a reliable electrical connection and facilitates the transmission of signals and power. At the same time, since the first baffle 721 is located above the mounting position 75 and the second baffle 722 is located to the left of the mounting position 75 after the aviation socket 10 is installed in the mounting position 75, the aviation socket 10 can optimize the installation space without protruding from the second housing 7, making the component installation on the second housing 7 more compact.

[0042] The lower surround seat 72 includes a mounting hole 73 for inserting the aviation socket 10. The aviation socket 10 includes a working section 101 and a limiting seat 102 located within a receiving cavity 77. The limiting seat 102 and the working section 101 are detachably connected by threads. The limiting seat 102 includes a limiting plate 1021 and an insertion section 1022. The insertion section 1022 is located in front of the mounting hole 73. The limiting plate 1021 is located within the receiving cavity 77 and is detachably connected to the inner wall of the lower surround seat 72 by bolts or other means. Since the diameter of the limiting plate 1021 is larger than that of the mounting hole 73, therefore... Before installing the aviation socket 10 on the second housing 7, first separate the upper cover plate 71 and the lower ring seat 72. Then, place the limiting plate 1021 in the receiving cavity 77 so that the insertion section 1022 is inserted from back to front. Then, move the working section 101 from front to back to the lower ring seat 72 and detachably connect it with the insertion section 1022. At this time, due to the presence of the limiting plate 1021, the limiting seat 102 can be fixed together with the lower ring seat 72 and cannot move forward. The detachable connection between the working section 101 and the limiting seat 102 allows the aviation socket 10 to be stably installed on the lower ring seat 72.

[0043] The working section 101 is provided with a screw hole 1011, and the insertion section 1022 is provided with an external thread 10221 in the circumferential direction. After the upper cover plate 71 is separated from the lower surrounding seat 72, the limiting seat 102 can be rotated to separate the working section 101 from the limiting seat 102 and remove the aviation socket 10 from the second cover 7. At this time, the working section 101 can be taken out from the front, and the limiting seat 102 can be taken out from the rear. Similarly, during assembly, the limiting seat 102 is placed in the receiving cavity 77 and moved forward so that the limiting plate 1021 abuts against the lower surrounding seat 72. The screw hole 1011 of the working section 101 is aligned with the external thread 10221 of the insertion section 1022 to connect the working section 101 and the limiting seat 102.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 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 the present invention. Therefore, the present invention 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 disclosed herein.

Claims

1. A sealing device for a circuit breaker and a disconnecting switch, comprising an upper disconnecting switch module, a lower circuit breaker module, a first base plate located behind the disconnecting switch module, and a second base plate located behind the circuit breaker module, characterized in that: It also includes a first cover, a first seal, a second cover and a second seal. The first cover is detachably installed on the front side of the first base plate and the first seal is located between the first cover and the first base plate. The second cover is detachably installed on the front side of the second base plate and the second seal is located between the second cover and the second base plate. Both the first cover and the second cover are made of stainless steel.

2. The sealing device for the circuit breaker and disconnector according to claim 1, characterized in that: The first cover includes a first mounting plate, and the second cover includes a second mounting plate. The first mounting plate is located on the front side of the first base plate, and the second mounting plate is located on the front side of the second base plate. The first sealing element is square in shape and has a first through hole on the first mounting plate. The first sealing element has a third through hole corresponding to the first through hole. The second sealing element is square in shape and has a second through hole on the second mounting plate. The second sealing element has a fourth through hole corresponding to the second through hole.

3. The sealing device for circuit breakers and disconnectors according to claim 1 or 2, characterized in that: The second base plate includes an upwardly protruding limiting section and a limiting groove located to the left of the limiting section. The first base plate includes a mating section at the bottom, wherein the mating section is inserted into the limiting groove and its right end face abuts against the limiting section.

4. The sealing device for the circuit breaker and disconnector according to claim 3, characterized in that: The second cover includes an upper cover plate at the top, a lower surround seat located below the upper cover plate, and a receiving cavity located between the upper cover plate and the lower surround seat. The upper cover plate and the lower surround seat are detachably connected. The first cover includes a lower cover plate located above the upper cover plate and an upper surround seat located above the lower cover plate.

5. The sealing device for the circuit breaker and disconnector according to claim 4, characterized in that: It also includes a sealing module located on a second cover, the second cover having an energy storage knob, the energy storage knob including a rotating shaft, the rotating shaft being rotatably mounted on a lower surrounding seat, the sealing module including a sealing ring, the sealing ring being located circumferentially on the rotating shaft and abutting against the lower surrounding seat.

6. The sealing device for the circuit breaker and disconnector according to claim 4, characterized in that: It also includes an aviation socket, the second housing including a mounting position for the aviation socket to be installed, and the lower surround including a first baffle above the mounting position and a second baffle to the left of the mounting position.

7. The sealing device for the circuit breaker and disconnector according to claim 5, characterized in that: The lower surround seat includes a mounting hole for inserting an aviation socket. The aviation socket includes a working section and a limiting seat located within a receiving cavity. The limiting seat is detachably connected to the working section. The limiting seat includes a limiting plate and an insertion section. The insertion section is located in front of the mounting hole. The limiting plate is located within the receiving cavity and is detachably connected to the inner wall of the lower surround seat.

8. The sealing device for the circuit breaker and disconnector according to claim 7, characterized in that: The working section is provided with screw holes, and the insertion section is provided with external threads in the circumferential direction.

Images