disconnector

Abstract

The application relates to the technical field of electrical equipment, and particularly discloses an isolating switch which comprises an isolating switch body and an electric operating mechanism, wherein the isolating switch body comprises a support and a first rotating shaft for driving the isolating switch body to open and close; the electric operating mechanism comprises a shell and an electric driving module; the shell is installed on one side of the support; the electric driving module is installed in the shell; the electric driving module comprises a driving piece and a transmission shaft; the first end of the transmission shaft is connected with the output end of the driving piece; the second end of the transmission shaft is rotatably and sealingly arranged in the shell and detachably connected with the corresponding first rotating shaft; and the driving piece drives the first rotating shaft to rotate by driving the transmission shaft to rotate. The isolating switch uses the integrated electric operating mechanism, can be remotely controlled, is convenient to disassemble and assemble, and can be used outdoors.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and more particularly to a disconnecting switch. Background Technology

[0002] Circuit breakers and disconnectors serve as electrical isolation devices in the State Grid power system and are essential equipment in the power industry. Pole-mounted circuit breakers are generally used together with disconnectors, installed as a single unit, and are mainly used in outdoor power systems.

[0003] Currently, outdoor disconnect switches paired with circuit breakers generally cannot be remotely controlled and must be manually operated. This manual operation is cumbersome and lacks timeliness. Furthermore, the operating mechanism of the disconnect switch has a complex structure and is distributed across one side of the switch, making disassembly and assembly difficult. Summary of the Invention

[0004] This invention provides a disconnecting switch that uses an integrated electric operating mechanism, which enables remote control, facilitates the disassembly and assembly of the electric operating mechanism, and can be used outdoors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Disconnecting switches, including:

[0007] The disconnector switch body includes a bracket and a first rotating shaft for driving the disconnector switch body to open and close, the first rotating shaft being rotatably disposed on opposite sides of the bracket;

[0008] An electric operating mechanism includes a housing and an electric drive module. The housing is mounted on one side of the bracket, and the electric drive module is mounted inside the housing. The electric drive module includes a drive component and a transmission shaft. The first end of the transmission shaft is connected to the output end of the drive component, and the second end of the transmission shaft is rotatable and sealed through the housing and detachably connected to the corresponding first rotating shaft. The drive component drives the first rotating shaft to rotate by driving the transmission shaft to rotate.

[0009] Optionally, one of the ends of the first rotating shaft and the second end of the transmission shaft is provided with a groove, and the other is provided with a protrusion, the protrusion being inserted into the groove.

[0010] Optionally, a shaft hole is provided on one side wall of the housing, and a shaft seal mounting component is installed in the shaft hole. The shaft seal mounting component has a mounting groove, and a through hole for the second end of the drive shaft to pass through is provided on the bottom wall of the mounting groove. The opening of the mounting groove faces the outside of the housing, and a sealing ring is installed in the mounting groove. The inner wall of the sealing ring slides against the outer peripheral wall of the drive shaft. A limiting groove is provided on the drive shaft, and a retaining ring is installed in the limiting groove. The retaining ring is used to press the sealing ring against the mounting groove.

[0011] Optionally, the housing includes a cover and a cover plate. The cover has a mounting cavity for mounting the electric drive module, and the cover plate is sealed over the opening of the mounting cavity. The cover plate is provided with a transparent observation window.

[0012] Optionally, on the cover, a plurality of first studs are provided circumferentially on the outer edge of the opening, and the cover plate is provided circumferentially with first mounting holes corresponding to the first studs. The first studs pass through the first mounting holes corresponding to them and are connected to the first nuts. A first sealing gasket is provided between the cover plate and the outer edge of the opening.

[0013] And / or, the cover plate is provided with an observation opening, and a plurality of second studs are provided circumferentially on the outer edge of the observation opening. The observation window is provided circumferentially with second mounting holes corresponding to the second studs. The second studs pass through the corresponding second mounting holes and are connected to the second nuts. A second sealing gasket is provided between the observation window and the outer edge of the observation opening.

[0014] Optionally, the electric drive module further includes a mounting frame, which is detachably mounted on an inner sidewall of the housing, and the mounting frame is used to mount the drive component and the transmission shaft.

[0015] Optionally, the side wall of the housing is provided with a plurality of assembly holes for assembly tools to pass through in order to install the mounting frame on an inner side wall of the housing. A locking and sealing assembly is detachably installed in the assembly hole for sealing the assembly hole.

[0016] Optionally, the output shaft of the drive unit is provided with a first gear, and the transmission shaft is fitted with a second gear, the second gear meshing with the first gear, and the diameter of the first gear being smaller than the diameter of the second gear.

[0017] Optionally, the electric drive module also includes:

[0018] Both the closing microswitch and the opening microswitch are arranged on one side of the drive shaft;

[0019] A cam is sleeved on the drive shaft, which can drive the cam to trigger the closing micro switch or the opening micro switch;

[0020] An auxiliary switch, wherein the second rotating shaft of the auxiliary switch is connected to the drive shaft via a transmission assembly, and the drive shaft can drive the second rotating shaft to rotate via the transmission assembly, so that the auxiliary switch outputs a closing signal or a opening signal;

[0021] When the cam triggers the closing micro switch and the auxiliary switch outputs a closing signal, and when the cam triggers the opening micro switch and the auxiliary switch outputs an opening signal, the drive unit stops working.

[0022] Optionally, the transmission assembly includes a transmission rod, one end of which is connected to the second rotating shaft, and the other end is provided with a sliding groove, which is slidably connected to a connecting pin on the second gear;

[0023] Alternatively, the transmission assembly includes a transmission rod and a connecting rod, one end of the transmission rod being rotatably connected to a connecting pin on the second gear, and the other end being connected to one end of the connecting rod, the connecting rod being fixedly connected to the second rotating shaft;

[0024] Alternatively, the transmission assembly may include a first transmission gear disposed on the transmission shaft and a second transmission gear disposed on the second rotating shaft, wherein the second transmission gear meshes with the first transmission gear.

[0025] The beneficial effects of this invention are as follows:

[0026] This invention provides a disconnecting switch, including a disconnecting switch body and an electric operating mechanism. The electric operating mechanism is integrated and can be directly mounted on the bracket of the disconnecting switch body via a housing, facilitating assembly and disassembly. Furthermore, the electric drive module of the electric operating mechanism drives the first shaft of the disconnecting switch body to rotate, realizing the opening and closing of the disconnecting switch body. Compared with the manual operating mechanism in the prior art, this invention enables remote control of the opening and closing of the disconnecting switch body, exhibiting a higher degree of intelligence. This improves the timeliness of the disconnecting switch's opening and closing and saves manpower. In addition, when the electric operating mechanism needs maintenance, it can be disassembled from the disconnecting switch body for repair, reducing maintenance difficulty.

[0027] Integrating the electric drive module into the housing allows the housing to protect the electric drive module, reducing the risk of damage to the electric drive module due to rain or other weather conditions when used outdoors.

[0028] By installing a drive shaft seal through the housing, external rainwater and dust can be prevented from entering the housing through the gap between the drive shaft and the housing, thus affecting the working reliability of the electric drive module inside the housing. This further improves the housing's protection performance for the electric drive module, and the housing can achieve an IP65 protection rating. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the disconnecting switch provided in an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of a portion of the disconnector switch body provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the electric operating mechanism provided in an embodiment of the present invention;

[0032] Figure 4 Cross-sectional view of the electric operating mechanism provided in the embodiment of the present invention. Figure 1 ;

[0033] Figure 5 This is a schematic diagram of the electric operating mechanism provided in an embodiment of the present invention with the cover plate removed.

[0034] Figure 6 A schematic diagram of the structure of the electric drive module provided in an embodiment of the present invention (partial mounting frame is hidden);

[0035] Figure 7 This is a schematic diagram of the structure of the cover provided in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the cover plate from one perspective, provided in an embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of the cover plate from another perspective provided in an embodiment of the present invention;

[0038] Figure 10 Cross-sectional view of the electric operating mechanism provided in the embodiment of the present invention. Figure 2 ;

[0039] Figure 11 A schematic diagram of the structure of the electric drive module is provided for an embodiment of the present invention;

[0040] Figure 12 This is a schematic diagram of the installation frame provided in an embodiment of the present invention;

[0041] Figure 13 An assembly diagram of the drive shaft, the second gear, and the cam provided in an embodiment of the present invention;

[0042] Figure 14A cross-sectional view of the assembly drawing of the transmission shaft and the second gear provided in an embodiment of the present invention;

[0043] Figure 15 This is a top view of an electric drive module provided in an embodiment of the present invention;

[0044] Figure 16 A top view of another electrically driven module provided in an embodiment of the present invention;

[0045] Figure 17 This is a top view of another electric drive module provided in an embodiment of the present invention.

[0046] In the picture:

[0047] 100. Disconnector switch body; 110. Bracket; 111. First connecting plate; 120. First rotating shaft; 121. Groove; 130. Connector;

[0048] 200. Electric operating mechanism;

[0049] 210. Housing; 211. Cover; 2111. Mounting cavity; 2112. Second connecting plate; 2113. Second connecting hole; 2114. First stud; 2115. First nut; 2116. Assembly hole; 2117. Third nut; 2118. Bolt; 212. Cover plate; 2121. Observation window; 2122. First mounting hole; 2123. Observation opening; 2124. Second stud; 2125. Second nut; 2126. Electrical connector;

[0050] 220. Electric drive module; 221. Drive component; 2211. First gear; 222. Drive shaft; 2221. Protrusion; 223. Mounting frame; 2231. First clamping plate; 22311. Third mounting hole; 2232. Second clamping plate; 22321. Wire groove; 2233. Support column; 224. Second gear; 2241. Flat key; 2242. Bushing; 2243. Connecting pin; 225. Closing micro switch; 226. Opening micro switch; 227. Cam; 228. Auxiliary switch; 2281. Second rotating shaft; 229. Transmission assembly; 2291. Transmission rod; 22911. Slide groove; 2292. Connecting rod; 2293. First transmission gear; 2294. Second transmission gear;

[0051] 230. Shaft seal mounting component; 240. Sealing ring; 250. Retaining ring; 260. First sealing gasket; 270. Second sealing gasket; 280. Locking sealing assembly; 281. Sealing bolt; 282. Sealing nut; 283. Gasket; 284. Third sealing gasket. Detailed Implementation

[0052] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0056] Example 1

[0057] This embodiment provides a disconnecting switch that uses an integrated electric operating mechanism, which can achieve remote control, facilitate the disassembly and assembly of the electric operating mechanism, and can be used outdoors.

[0058] Specifically, such as Figures 1-9As shown, the disconnecting switch includes a disconnecting switch body 100 and an electric operating mechanism 200. The disconnecting switch body 100 includes a bracket 110 and a first rotating shaft 120 for driving the disconnecting switch body 100 to open and close. The first rotating shaft 120 rotatably passes through opposite sides of the bracket 110. The electric operating mechanism 200 includes a housing 210 and an electric drive module 220. The housing 210 is mounted on one side of the bracket 110, and the electric drive module 220 is mounted inside the housing 210. The electric drive module 220 includes a drive element 221 and a transmission shaft 222. The first end of the transmission shaft 222 is connected to the output end of the drive element 221, and the second end of the transmission shaft 222 rotatably and sealed through the housing 210 and detachably connected to the corresponding first rotating shaft 120. The drive element 221 drives the first rotating shaft 120 to rotate by driving the transmission shaft 222.

[0059] The electric operating mechanism 200 provided in this embodiment is integrated and can be directly mounted on the bracket 110 of the disconnector switch body 100 via the housing 210, facilitating disassembly and assembly. Furthermore, the electric drive module 220 can drive the first rotating shaft 120 of the disconnector switch body 100 to rotate, realizing the opening and closing of the disconnector switch body 100. Compared with the manual operating mechanism in the prior art, it enables remote control of the opening and closing of the disconnector switch body 100, exhibiting a higher level of intelligence. This improves the timeliness of the disconnector switch opening and closing and saves manpower. In addition, when the electric operating mechanism needs maintenance, it can be disassembled from the disconnector switch body for repair, reducing maintenance difficulty. Integrating the electric drive module 220 within the housing 210 provides protection for the electric drive module 220, reducing the risk of damage to the electric drive module 220 due to rain or other weather conditions during outdoor use. The drive shaft 222 is sealed through the housing 210, which can prevent external rainwater, dust and other substances from entering the housing 210 through the gap between the drive shaft 222 and the housing 210 and affecting the working reliability of the electric drive module 220 inside the housing 210, and further improve the protection performance of the housing 210 for the electric drive module 220.

[0060] Optionally, see [link to relevant documentation] Figures 2-4 One end of the first rotating shaft 120 and the second end of the transmission shaft 222 are provided with a groove 121, and the other end is provided with a protrusion 2221, which is inserted into the groove 121. The detachable connection between the first rotating shaft 120 and the transmission shaft 222 is achieved by the cooperation of the protrusion 2221 and the groove 121. The structure is simple, which facilitates the disassembly and assembly with the electric operating mechanism 200 and is also easy to process.

[0061] In this embodiment, the end of the first rotating shaft 120 is provided with a groove 121, and the end of the second end of the transmission shaft 222 is provided with a protrusion 2221.

[0062] Furthermore, in order to improve the synchronization of rotation between the drive shaft 222 and the first rotating shaft 120, the groove 121 can be set as a polygonal groove, and correspondingly, the protrusion 2221 is a polygon that matches the shape of the groove 121.

[0063] In this embodiment, the groove 121 is a rectangular groove, and the cross-sectional shape of the protrusion 2221 is also rectangular.

[0064] Further, see also Figure 3 and Figure 4 In one possible embodiment, a shaft hole is provided on one side wall of the housing 210, and a shaft seal mounting component 230 is installed in the shaft hole. The shaft seal mounting component 230 has a mounting groove, and a through hole for the second end of the drive shaft 222 to pass through is provided on the bottom wall of the mounting groove. The opening of the mounting groove faces the outside of the housing 210. A sealing ring 240 is installed in the mounting groove, and the inner wall of the sealing ring 240 slides against the outer peripheral wall of the drive shaft 222. A limiting groove is provided on the drive shaft 222, and a retaining ring 250 is installed in the limiting groove. The retaining ring 250 is used to press the sealing ring 240 against the mounting groove. The sealing between the drive shaft 222 and the housing 210 is achieved by the shaft seal mounting component 230 and the sealing ring 240. The structure is simple, easy to install, and the shaft seal mounting component 230 and the sealing ring 240 of appropriate size can be selected according to the size of the drive shaft 222, which has high versatility. Installing the sealing ring 240 on the outside of the housing 210, compared to arranging it on the inside of the housing 210, avoids operations in the confined space inside the housing 210, thus reducing the difficulty of installing the sealing ring 240. The retaining ring 250 stops the sealing ring 240, improving the installation reliability of the sealing ring 240, and consequently improving the reliability of the seal between the housing 210 and the drive shaft 222.

[0065] Further, see also Figure 2 and Figure 3 The bracket 110 is provided with a first connecting plate 111, which has a plurality of first connecting holes. The side wall of the housing 210 extending from the drive shaft 222 is provided with a second connecting plate 2112, which has a plurality of second connecting holes 2113. The second connecting holes 2113 are arranged one-to-one with the first connecting holes. A connector 130 passes through each corresponding first connecting hole and second connecting hole 2113. The connector 130 is used to connect the first connecting plate 111 and the second connecting plate 2112 together so as to install the housing 210 on the bracket 110.

[0066] The housing 210 is mounted on the bracket 110 via the first connecting plate 111, the second connecting plate 2112, and the connector 130. The structure is simple and the installation and disassembly are relatively convenient. Optionally, the connector 130 can be a bolt and nut assembly.

[0067] Furthermore, both the first connecting plate 111 and the second connecting plate 2112 can be L-shaped. With this arrangement, the connection strength between the first connecting plate 111 and the second connecting plate 2112 is higher, which is beneficial to improving the installation reliability of the housing 210 on the bracket 110.

[0068] In this embodiment, there are five of each of the first connecting hole and the second connecting hole 2113.

[0069] Further, see also Figure 3 , Figure 5 , Figure 8 and Figure 9 The housing 210 includes a cover 211 and a cover plate 212. The cover 211 has a mounting cavity 2111 for installing the electric drive module 220. The cover plate 212 is provided to seal the opening of the mounting cavity 2111, and a transparent observation window 2121 is provided on the cover plate 212. The housing 210 has a simple structure, which facilitates the installation and maintenance of the electric drive module 220. Furthermore, by providing a transparent observation window 2121 on the cover plate 212, it is convenient for operators to obtain the working status of the electric drive module 220 through the observation window 2121.

[0070] Optionally, see [link to relevant documentation] Figure 3 , Figure 7 , Figure 8 and Figure 9 In one possible embodiment, multiple first studs 2114 are circumferentially provided on the outer edge of the opening on the cover 211. The cover plate 212 has first mounting holes 2122 corresponding to the first studs 2114 circumferentially. The first studs 2114 pass through their corresponding first mounting holes 2122 and are connected to first nuts 2115. A first sealing gasket 260 is provided between the cover plate 212 and the outer edge of the opening. The assembly between the cover plate 212 and the cover 211 is achieved through the cooperation of the first studs 2114, the first mounting holes 2122, and the first nuts 2115. The structure is simple, installation and disassembly are convenient, and the connection strength is high. Furthermore, the first sealing gasket 260 achieves a seal between the cover plate 212 and the cover 211. The structure is simple, the sealing performance is good, and it can achieve an IP65 protection level. The material of the first sealing gasket 260 can be an elastic material, which is beneficial to further improve the sealing performance between the cover plate 212 and the cover 211.

[0071] Optionally, see [link to relevant documentation] Figure 3 , Figure 7 , Figure 8 and Figure 9In one possible embodiment, the cover plate 212 has an observation opening 2123, and multiple second studs 2124 are circumferentially arranged around the outer edge of the observation opening 2123. The observation window 2121 has second mounting holes corresponding to the second studs 2124 circumferentially. The second studs 2124 pass through their corresponding second mounting holes and are connected to second nuts 2125. A second sealing gasket 270 is provided between the outer edge of the observation window 2121 and the observation opening 2123. The assembly between the cover plate 212 and the observation window 2121 is achieved through the cooperation of the second studs 2124, the second mounting holes, and the second nuts 2125. The structure is simple, installation and disassembly are convenient, and the connection strength is high. Furthermore, the second sealing gasket 270 achieves a seal between the cover plate 212 and the observation window 2121, resulting in a simple structure, good sealing performance, and an IP65 protection rating. The material of the second sealing gasket 270 can be an elastic material, which further improves the sealing performance between the cover plate 212 and the observation window 2121.

[0072] Further, see also Figure 3 and Figure 9 The cover plate 212 is also provided with an electrical connector 2126, which is used to connect to the drive unit 221 to supply power to the drive unit 221 through an external power source. Optionally, the drive unit 221 can be a motor.

[0073] Optionally, the connection structure between the electrical connector 2126 and the cover plate 212 can be the same as the connection structure between the observation window 2121 and the cover plate 212.

[0074] Furthermore, such as Figure 5 , Figure 6 , Figure 11 and Figure 12 As shown, the electric drive module 220 also includes a mounting frame 223, on which the drive component 221 and the first rotating shaft 120 are mounted. Integrating the components of the electric drive module 220 onto the mounting frame 223 allows the components to be assembled onto the mounting frame 223 outside the housing 210 before being assembled together inside the housing 210. This facilitates the installation and removal of the electric drive module 220 from the housing 210. Furthermore, during maintenance, the mounting frame 223 can be removed from inside the housing 210 to locate the problem point, avoiding work within the confined space of the housing 210 and improving maintenance efficiency.

[0075] Optionally, see [link to relevant documentation] Figure 5 , Figure 6 , Figure 11 and Figure 12In this embodiment, the mounting frame 223 includes a first clamping plate 2231 and a second clamping plate 2232 spaced apart. The first clamping plate 2231 and the second clamping plate 2232 are connected by a support column 2233, and the support column 2233 is detachably connected to both the first clamping plate 2231 and the second clamping plate 2232. The first clamping plate 2231 is detachably mounted on an inner side wall of the housing 210. The driving component 221 is mounted on the first clamping plate 2231, and both ends of the transmission shaft 222 are rotatably passed through the first clamping plate 2231 and the second clamping plate 2232, respectively. This mounting frame 223 has a simple structure, facilitates the installation of the driving component 221 and the transmission shaft 222, and has high structural stability.

[0076] Further, see also Figure 5 , Figure 7 and Figure 12 In this embodiment, a plurality of third nuts 2117 are provided on an inner sidewall of the housing 210, and a third mounting hole 22311 corresponding to each of the third nuts 2117 is provided on the first clamping plate 2231. A bolt 2118 is provided for each third mounting hole 22311, and the bolt 2118 passes through the third mounting hole 22311 and is connected to the third nut 2117 corresponding to the third mounting hole 22311. The first clamping plate 2231 is fixed to the inner sidewall of the housing 210 by bolt connection, which has a simple structure and is convenient for installation and disassembly.

[0077] Optionally, in this embodiment, a plurality of third mounting holes 22311 are arranged along the circumference of the first clamping plate 2231 to improve the uniformity of force on the first clamping plate 2231.

[0078] Optionally, the support column 2233 and the first clamping plate 2231, as well as the support column 2233 and the second clamping plate 2232, can be connected by bolts. The bolt connection structure is simple, easy to install and disassemble, and has high connection strength.

[0079] Further, see also Figure 11 and Figure 12 The second clamping plate 2232 is provided with a wire groove 22321 for internal wiring of the electric drive module 220 to improve the neatness of the wiring layout.

[0080] Furthermore, such as Figure 5 , Figure 7 and Figure 10As shown, the side wall of the housing 210 is provided with a plurality of assembly holes 2116, which are used for assembly tools to pass through in order to install the mounting frame 223 onto one side wall of the housing 210. Optionally, in this embodiment, the assembly hole 2116 is used for a screwdriver bit to pass through in order to tighten the bolt 2118 onto the third nut 2117. Furthermore, a locking and sealing assembly 280 is detachably installed in the assembly hole 2116. The locking and sealing assembly 280 is used to seal the assembly hole 2116 after the mounting frame 223 is assembled, so as to ensure the sealing performance of the housing 210 to the electric operating mechanism 200.

[0081] Optionally, see [link to relevant documentation] Figure 10 In this embodiment, the locking and sealing assembly 280 includes a sealing bolt 281, a sealing nut 282, a gasket 283, and a third sealing gasket 284. The sealing bolt 281 passes through the mounting hole 2116 and is connected to the locking nut. A third sealing gasket 284 is provided between the head of the sealing bolt 281 and the outer wall of the housing 210, and between the sealing nut 282 and the inner wall of the housing 210. A gasket 283 is provided between one third sealing gasket 284 and the head of the sealing bolt 281, and between the other third sealing gasket 284 and the sealing nut 282. This locking and sealing assembly 280 has a simple structure, is easy to install, and provides a good sealing effect by providing a third sealing gasket 284 and a gasket 283 on both sides of the mounting hole 2116.

[0082] Furthermore, such as Figure 6 , Figure 13 and Figure 14 As shown, a first gear 2211 is provided on the output shaft of the drive component 221, and a second gear 224 is sleeved on the transmission shaft 222. The second gear 224 meshes with the first gear 2211, and the diameter of the first gear 2211 is smaller than the diameter of the second gear 224. The drive component 221 drives the transmission shaft 222 to rotate by driving the second gear 224 through the first gear 2211, which can realize a large torque ratio transmission, stable output ratio, and high transmission efficiency.

[0083] Optionally, see [link to relevant documentation] Figure 14 The second gear 224 is connected to the drive shaft 222 by a flat key 2241 to ensure synchronous movement between the second gear 224 and the drive shaft 222.

[0084] Optionally, see [link to relevant documentation] Figure 14 A bushing 2242 is also fitted on the drive shaft 222. One end of the bushing 2242 abuts against the second gear 224, and the other end abuts against the first clamping plate 2231 to axially limit the drive shaft 222.

[0085] Furthermore, such as Figure 6 , Figures 15-17As shown, the electric drive module 220 also includes a closing micro switch 225, a opening micro switch 226, a cam 227, and an auxiliary switch 228. The closing micro switch 225 and the opening micro switch 226 are both arranged on one side of the drive shaft 222. Optionally, the closing micro switch 225 and the opening micro switch 226 can both be mounted on the second clamping plate 2232. The cam 227 is sleeved on the drive shaft 222, and the drive shaft 222 can drive the cam 227 to trigger either the closing micro switch 225 or the opening micro switch 226. The second rotating shaft 2281 of the auxiliary switch 228 is connected to the drive shaft 222 via a transmission assembly 229. The drive shaft 222 can drive the second rotating shaft 2281 to rotate via the transmission assembly 229, so that the auxiliary switch 228 outputs a closing signal or an opening signal.

[0086] If it is necessary to remotely control the electric drive module 220 to drive the isolating switch body 100 to close, the control drive component 221 is started, causing the drive component 221 to drive the transmission shaft 222 to rotate. When the cam 227 triggers the closing micro switch 225, and at the same time, the auxiliary switch 228 outputs a closing signal through the transmission component 229, the control drive component 221 stops working, and the isolating switch body 100 is closed in place.

[0087] If it is necessary to remotely control the electric drive module 220 to drive the disconnector switch body 100 to open, the control drive component 221 is started, causing the drive component 221 to drive the transmission shaft 222 to rotate. When the cam 227 triggers the opening micro switch 226, and at the same time, the auxiliary switch 228 outputs an opening signal through the transmission component 229, the control drive component 221 stops working, and the disconnector switch body 100 is opened to the correct position.

[0088] By using the closing microswitch 225, the opening microswitch 226, and the auxiliary switch 228 together to detect the position (open or closed) of the isolating switch, the reliability of position detection is improved, which helps to reduce the failure rate.

[0089] Optionally, the cam 227 can be a separate unit or an integrated unit, depending on the number of contacts of the opening micro switch 226 or the closing micro switch 225.

[0090] Optionally, in this embodiment, the auxiliary switch 228 is also disposed on the first clamping plate 2231.

[0091] Optionally, see [link to relevant documentation] Figure 15In this embodiment, the transmission assembly 229 includes a transmission rod 2291. One end of the transmission rod 2291 is connected to the second rotating shaft 2281, and the other end is provided with a sliding groove 22911. The sliding groove 22911 is slidably connected to the connecting pin 2243 on the second gear 224. That is, the second gear 224, the connecting pin 2243, the transmission rod 2291, and the second rotating shaft 2281 form a crank-slider mechanism. The transmission between the transmission shaft 222 and the second rotating shaft 2281 is realized through the crank-slider mechanism. The structure is simple and the force transmission is reliable.

[0092] Example 2

[0093] This embodiment provides a disconnecting switch, which has a largely the same structure as Embodiment 1, with improvements only. Therefore, only the differences between the two are described here; structures identical to those in Embodiment 1 will not be repeated. In this embodiment, technical features identical or corresponding to those in Embodiment 1 are referred to by the same reference numerals.

[0094] Specifically, see [link to relevant documentation] Figure 16 In this embodiment, the transmission assembly 229 includes a transmission rod 2291 and a connecting rod 2292. One end of the transmission rod 2291 is rotatably connected to the connecting pin 2243 on the second gear 224, and the other end is connected to one end of the connecting rod 2292. The connecting rod 2292 is fixedly connected to the second rotating shaft 2281. The transmission between the transmission shaft 222 and the second rotating shaft 2281 is realized through the transmission rod 2291 and the connecting rod 2292. The structure is simple, the force transmission is reliable, and the installation is convenient.

[0095] Example 3

[0096] This embodiment provides a disconnecting switch, which has a largely the same structure as Embodiment 1, with improvements only. Therefore, only the differences between the two are described here; structures identical to those in Embodiment 1 will not be repeated. In this embodiment, technical features identical or corresponding to those in Embodiment 1 are referred to by the same reference numerals.

[0097] Specifically, see [link to relevant documentation] Figure 17 In this embodiment, the transmission assembly 229 includes a first transmission gear 2293 disposed on the transmission shaft 222 and a second transmission gear 2294 disposed on the second rotating shaft 2281, wherein the second transmission gear 2294 meshes with the first transmission gear 2293. The transmission between the transmission shaft 222 and the second rotating shaft 2281 is achieved through gear meshing, resulting in better transmission smoothness and reliability, and a simple structure.

[0098] Example 4

[0099] This embodiment provides a circuit breaker, including a pole, a fuse, and a disconnecting switch as provided in Embodiment 1, Embodiment 2, or Embodiment 3. Optionally, this circuit breaker is used outdoors.

[0100] Because this circuit breaker uses the aforementioned disconnecting switch, it can remotely open and close the disconnecting switch, and the maintenance of the disconnecting switch is also relatively convenient.

[0101] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A disconnecting switch, characterized in that, include: The disconnector switch body (100) includes a bracket (110) and a first rotating shaft (120) for driving the disconnector switch body (100) to open and close. The first rotating shaft (120) is rotatably disposed on opposite sides of the bracket (110). An electric operating mechanism (200) includes a housing (210) and an electric drive module (220). The housing (210) is mounted on one side of the bracket (110), and the electric drive module (220) is mounted inside the housing (210). The electric drive module (220) includes a drive element (221) and a transmission shaft (222). The first end of the transmission shaft (222) is connected to the output end of the drive element (221), and the second end of the transmission shaft (222) is rotatable and sealed through the housing (210) and detachably connected to the corresponding first rotating shaft (120). The drive element (221) drives the first rotating shaft (120) to rotate by driving the transmission shaft (222) to rotate. A shaft hole is provided on one side wall of the housing (210), and a shaft seal mounting component (230) is installed in the shaft hole. The shaft seal mounting component (230) is provided with a mounting groove. A through hole for the second end of the drive shaft (222) to pass through is provided on the bottom wall of the mounting groove. The opening of the mounting groove faces the outside of the housing (210). A sealing ring (240) is installed in the mounting groove. The inner wall of the sealing ring (240) slides against the outer peripheral wall of the drive shaft (222). A limiting groove is provided on the drive shaft (222). A retaining ring (250) is installed in the limiting groove. The retaining ring (250) is used to press the sealing ring (240) against the mounting groove. The electric drive module (220) further includes a mounting frame (223), which includes a first clamping plate (2231) and a second clamping plate (2232) spaced apart. The first clamping plate (2231) and the second clamping plate (2232) are connected by a support column (2233). The support column (2233) is detachably connected to both the first clamping plate (2231) and the second clamping plate (2232). The first clamping plate (2231) is detachably mounted on an inner side wall of the housing (210). The drive component (221) is mounted on the first clamping plate (2231). The two ends of the drive shaft (222) are rotatably inserted through the first clamping plate (2231) and the second clamping plate (2232), respectively.

2. The disconnecting switch according to claim 1, characterized in that, One of the ends of the first rotating shaft (120) and the second end of the transmission shaft (222) is provided with a groove (121), and the other is provided with a protrusion (2221), the protrusion (2221) being inserted into the groove (121).

3. The disconnecting switch according to claim 1, characterized in that, The housing (210) includes a cover (211) and a cover plate (212). The cover (211) has a mounting cavity (2111) for mounting the electric drive module (220). The cover plate (212) is sealed over the opening of the mounting cavity (2111). The cover plate (212) is provided with a transparent observation window (2121).

4. The disconnecting switch according to claim 3, characterized in that, On the cover (211), a plurality of first studs (2114) are provided circumferentially on the outer edge of the opening. The cover plate (212) is provided circumferentially with first mounting holes (2122) corresponding to the first studs (2114). The first studs (2114) pass through the corresponding first mounting holes (2122) and are connected to the first nuts (2115). A first sealing gasket (260) is provided between the cover plate (212) and the outer edge of the opening. And / or, the cover plate (212) is provided with an observation opening (2123), and a plurality of second studs (2124) are provided circumferentially on the outer edge of the observation opening (2123). The observation window (2121) is provided circumferentially with second mounting holes corresponding one-to-one with the second studs (2124). The second studs (2124) pass through the corresponding second mounting holes and are connected to the second nuts (2125). A second sealing gasket (270) is provided between the observation window (2121) and the outer edge of the observation opening (2123).

5. The disconnecting switch according to claim 1, characterized in that, The housing (210) has a plurality of assembly holes (2116) on its side wall. The assembly holes (2116) are for assembly tools to pass through to install the mounting frame (223) on an inner side wall of the housing (210). A locking and sealing assembly (280) is detachably installed in the assembly hole (2116) and is used to seal the assembly hole (2116).

6. The disconnecting switch according to any one of claims 1-5, characterized in that, The output shaft of the drive unit (221) is provided with a first gear (2211), and the transmission shaft (222) is fitted with a second gear (224). The second gear (224) meshes with the first gear (2211), and the diameter of the first gear (2211) is smaller than the diameter of the second gear (224).

7. The disconnecting switch according to claim 6, characterized in that, The electric drive module (220) also includes: Both the closing microswitch (225) and the opening microswitch (226) are arranged on one side of the drive shaft (222); A cam (227) is sleeved on the drive shaft (222), and the drive shaft (222) can drive the cam (227) to trigger the closing micro switch (225) or the opening micro switch (226); An auxiliary switch (228) is provided, wherein the second rotating shaft (2281) of the auxiliary switch (228) is connected to the transmission shaft (222) via a transmission assembly (229). The transmission shaft (222) can drive the second rotating shaft (2281) to rotate via the transmission assembly (229), so that the auxiliary switch (228) outputs a closing signal or a opening signal. When the cam (227) triggers the closing micro switch (225) and the auxiliary switch (228) outputs a closing signal, and when the cam (227) triggers the opening micro switch (226) and the auxiliary switch (228) outputs an opening signal, the drive unit (221) stops working.

8. The disconnecting switch according to claim 7, characterized in that, The transmission assembly (229) includes a transmission rod (2291), one end of which is connected to the second rotating shaft (2281), and the other end is provided with a sliding groove (22911), which is slidably connected to the connecting pin (2243) on the second gear (224); Alternatively, the transmission assembly (229) includes a transmission rod (2291) and a connecting rod (2292), one end of the transmission rod (2291) is rotatably connected to the connecting pin (2243) on the second gear (224), and the other end is connected to one end of the connecting rod (2292), and the connecting rod (2292) is fixedly connected to the second rotating shaft (2281); Alternatively, the transmission assembly (229) includes a first transmission gear (2293) disposed on the transmission shaft (222) and a second transmission gear (2294) disposed on the second rotating shaft (2281), wherein the second transmission gear (2294) meshes with the first transmission gear (2293).

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