CN116453881A

CN116453881A - Switching device

Info

Publication number: CN116453881A
Application number: CN202310712189.6A
Authority: CN
Inventors: 李俊彦; 邱应平; 曹洋; 范勇刚
Original assignee: Haiying Deep Sea Technology Co ltd
Current assignee: Haiying Deep Sea Technology Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-07-18
Anticipated expiration: 2043-06-15
Also published as: CN117457409A; CN119208033A; CN116453881B

Abstract

The utility model discloses a switch device, which comprises an insulating shell, a driving part and a passage controller, wherein the driving part comprises an eccentric wheel, a push rod and a return spring, the eccentric wheel is rotatably arranged in a containing cavity of the insulating shell, a driven end of the push rod is in driving connection with the eccentric wheel, the return spring is sleeved on the push rod, one end part of the return spring is abutted against the driven end of the push rod, the other end part of the return spring is unchanged relative to the insulating shell, the passage controller comprises two static connectors and one dynamic connector, the two static connectors are adjacently arranged on the insulating shell, one end part of the two static connectors extends to the containing cavity of the insulating shell to form a static contact, the other end part of the static connectors extends to the outside of the insulating shell to form a wiring contact, the middle part of the dynamic connector is in floating connection with the mounting end of the push rod, and the two opposite ends of the dynamic connector are respectively provided with dynamic contacts for respectively contacting with each static contact.

Description

Switching device

Technical Field

The utility model relates to equipment for controlling on-off of a circuit, in particular to a switching device.

Background

The Chinese patent with the publication number of CN203674130U discloses an arc-extinguishing type piston breaker, which comprises a shell, a fixed contact and a movable contact which are arranged in the shell, wherein a driving original judgment and a piston tube are further arranged in the shell, a driving push rod is arranged on the driving original judgment, the fixed contact is arranged in the piston tube, the movable contact is arranged on the driving push rod, the driving push rod is arranged in the piston tube in a telescopic manner, the movable contact is connected with or disconnected from the fixed contact under the telescopic driving of the driving push rod, an arc-extinguishing cavity is arranged in the piston tube, an arc-extinguishing layer is arranged in the arc-extinguishing cavity, the movable contact and the fixed contact are arranged in the arc-extinguishing cavity, and a sealing cushion layer is arranged between the driving push rod and the piston tube. The driving disc is arranged on the eccentric wheel, the driving push rod is movably abutted to the eccentric wheel, a clamping convex ring is arranged in the piston tube, a reset spring is further arranged in the piston tube, one end of the reset spring is abutted to the clamping convex ring, and the other end of the reset spring is abutted to the driving push rod. When the eccentric wheel rotates in one direction, the eccentric wheel pushes the driving push rod to extend so as to push the moving contact from the driving push rod towards the direction close to the fixed contact until the moving contact touches the fixed contact to realize the conduction between the fixed contact and the moving contact, and in the process, the reset spring is compressed and deformed to accumulate elastic potential energy. When the eccentric wheel rotates in the opposite direction, the reset spring pushes the driving push rod to shrink in the process of restoring the initial state, so that the driving push rod moves the moving contact in the direction away from the fixed contact until the moving contact is away from the fixed contact, and the fixed contact and the moving contact are disconnected.

The defects of the arc extinguishing type piston breaker in the prior art are as follows: when the moving contact is pushed towards the direction close to the fixed contact through the driving push rod, the moving contact is in hard contact with the fixed contact, which leads to the fact that the arc extinguishing type piston breaker in the prior art has higher precision requirements on the length dimension of the driving push rod, if the length dimension of the driving push rod is shorter, the moving contact cannot be in contact with the fixed contact, or the virtual connection problem occurs between the moving contact and the fixed contact, and if the length dimension of the driving push rod is longer, larger pressure exists between the moving contact and the fixed contact, so that the moving contact and/or the fixed contact are damaged. More importantly, with the increase of the service time of the arc extinguishing type piston breaker, abrasion and oxidization can occur between the moving contact and/or the fixed contact, and the abrasion and the oxidization can both cause virtual connection between the moving contact and the fixed contact, so that a large potential safety hazard is generated for electricity utilization safety.

Disclosure of Invention

It is an object of the present invention to provide a switching device, wherein the switching device has a good safety and stability, and is particularly suitable for high-power electrical equipment, for example, the switching device can be used for a submersible vehicle, and is beneficial for guaranteeing the stability of a circuit system of the submersible vehicle.

It is an object of the present invention to provide a switching device in which the dynamic connector of the path control part of the switching device is wholly floatable, and a proper pressure can be maintained between the dynamic connector and the static connector of the path control part, so as to avoid a virtual connection problem between the dynamic connector and the static connector, which makes the switching device of the present invention particularly suitable for high-current electric equipment and eliminates a safety hazard caused by the virtual connection.

An object of the present invention is to provide a switching device in which the entirety of the dynamic connector is floatable so that even if abrasion and oxidation of the dynamic contact of the dynamic connector and the static contact of the static connector occur, an appropriate pressure can be maintained between the dynamic connector and the static connector to avoid a problem of a virtual connection between the dynamic connector and the static connector, which makes the switching device of the present invention particularly suitable for use in high-current electric appliances and eliminates a safety hazard due to a virtual connection.

It is an object of the present invention to provide a switching device in which a portion of the dynamic connector is floatable, which is capable of maintaining a proper pressure with a static connector of the path control part, so as to avoid a virtual connection problem between the dynamic connector and the static connector, which makes the switching device of the present invention particularly suitable for high-current electric appliances and eliminates a safety hazard due to the virtual connection.

It is an object of the present invention to provide a switching device in which a portion of the dynamic connector is floatable so that even if a connection float of the dynamic connector and a static contact of the static connector are worn and oxidized, an appropriate pressure can be maintained between the dynamic connector and the static connector to avoid a problem of a virtual connection between the dynamic connector and the static connector, which makes the switching device of the present invention particularly suitable for high-current electric appliances and eliminates a safety hazard due to a virtual connection.

It is an object of the present invention to provide a switching device in which a floating spring is provided between the dynamic connector and a push rod of a driving part, the floating spring allowing the dynamic connector to be floatably mounted to the push rod, so that the floating spring enables a proper pressure to be maintained between the dynamic connector and the static connector.

It is an object of the present invention to provide a switching device wherein the switching device forms a suspension between the dynamic connector and the push rod, the suspension allowing the dynamic connector to be floatably mounted to the push rod, whereby the suspension maintains a proper pressure between the dynamic connector and the static connector.

In order to achieve at least one of the above objects, the present invention provides the following technical solutions: a switching device, comprising:

an insulating housing, wherein the insulating housing has a receiving cavity;

a driving part, wherein the driving part comprises an eccentric wheel, a push rod and a return spring, the eccentric wheel is rotatably installed in the accommodating cavity of the insulating shell, the push rod is provided with a driven end and an installation end corresponding to the driven end, the driven end of the push rod is drivably connected with the eccentric wheel, the return spring is sleeved on the push rod, and one end part of the return spring is abutted against the driven end of the push rod, and the other end part of the return spring is unchanged relative to the insulating shell;

and a path control part, wherein the path control part comprises two static connectors and one dynamic connector, the two static connectors are adjacently arranged on the insulating shell, one end part of each static connector extends to the accommodating cavity of the insulating shell to form a static contact of the static connector, the other end part extends to the outside of the insulating shell to form a wiring contact of the static connector, the middle part of each dynamic connector is floatably arranged at the mounting end of the push rod, and the opposite ends of each dynamic connector are respectively provided with a dynamic contact, wherein when the eccentric wheel pushes the dynamic connector through the push rod, each dynamic contact of each dynamic connector is contacted with the static contact of each static connector.

According to one embodiment of the invention, the dynamic connector has a connector aperture in the middle, the mounting end of the push rod being movably mounted to the connector aperture of the dynamic connector, wherein the switching device further comprises a suspension spring which is nested on the push rod and one end of which abuts against the push rod and the other end of which abuts against the dynamic connector.

According to one embodiment of the invention, the dynamic connector has a connector aperture in a middle portion thereof, the mounting end of the push rod being movably mounted to the connector aperture of the dynamic connector, wherein the switching device further comprises a deformable suspension integrally coupled to the mounting end of the push rod and the dynamic connector.

According to one embodiment of the invention, the push rod has at least one push rod perforation, the direction of extension of which is perpendicular to the direction of extension of the push rod, which push rod perforation is provided at the mounting end of the push rod, wherein a part of the suspension is formed in the push rod perforation of the push rod.

According to one embodiment of the invention, the dynamic connector has at least one detent, and a portion of the floating portion is formed in the detent of the dynamic connector.

According to an embodiment of the present invention, the switching device further includes a stab shaft portion having a stab shaft penetration hole, the stab shaft portion is fixedly installed in the receiving cavity of the insulating housing, and a middle portion of the push rod is movably installed in the stab shaft penetration hole of the stab shaft portion to prevent the push rod from being deviated by the stab shaft portion.

According to one embodiment of the invention, one end of the return spring abuts against the stabilizing portion.

According to one embodiment of the invention, the switching device further comprises an insulating pad mounted to the driven end of the push rod and isolating the driven end of the push rod from the eccentric.

According to one embodiment of the invention, the switching device further comprises a spacer which is deformably arranged in the receiving cavity of the insulating housing and the periphery of which is fixed to the insulating housing, wherein the push rod comprises a first rod body which extends between the spacer and the eccentric, and a second rod body which extends between the spacer and the dynamic connector, and the position of the first rod body corresponds to the position of the second rod body.

According to one embodiment of the invention, the partition has a first mounting cavity and a second mounting cavity, the first and second mounting cavities being located on opposite sides of the partition, and the first and second mounting cavities being located in correspondence with each other, wherein one end of the first rod is mounted to the first mounting cavity of the partition and one end of the second rod is mounted to the second mounting cavity of the partition.

According to one embodiment of the invention, the insulating housing comprises a bottom shell and a top cover, the bottom shell is provided with a bottom shell blind hole, the top cover is provided with a top cover perforation, the top cover is mounted on the bottom shell so as to form the containing cavity between the top cover and the bottom shell, the position of the top cover perforation corresponds to the position of the bottom shell blind hole of the bottom shell, a first rotating shaft and a second rotating shaft are respectively arranged on two opposite sides of the eccentric wheel, the first rotating shaft of the eccentric wheel is rotatably mounted on the bottom shell blind hole of the bottom shell, and the second rotating shaft of the eccentric wheel is rotatably and operably mounted on the top cover perforation of the top cover.

According to one embodiment of the invention, the bottom shell has an arcuate runner adjacent to the bottom shell blind hole, and the eccentric has a slider adjacent to the first rotation axis, wherein the slider of the eccentric is slidably mounted to the runner of the bottom shell.

The present invention also provides a switching device comprising:

an insulating housing, wherein the insulating housing has a receiving cavity;

the path control part comprises two static connectors and one dynamic connector, the two static connectors are adjacently arranged on the insulating shell, one end part of each static connector extends to the containing cavity of the insulating shell to form a static contact of the static connector, the other end part of each static connector extends to the outside of the insulating shell to form a wiring contact of the static connector, each static contact of each static connector is respectively provided with an avoidance groove, the dynamic connector comprises a connecting frame, two guide posts and two connecting floating blocks, the middle part of the connecting frame is fixedly arranged at the mounting end of the push rod, each guide post extends outwards from the opposite ends of the connecting frame, each connecting floating block is respectively and floatably arranged at each guide post, and when the eccentric wheel pushes the dynamic connector through the eccentric wheel, each guide post respectively extends into each static contact of the static connector to be further contacted with each static contact of the connecting frame.

According to one embodiment of the invention, the switching device comprises two suspension springs, wherein each suspension spring is sleeved on each guide post, one end of each suspension spring is abutted against the connecting frame, and the other end of each suspension spring is abutted against the connecting floating block.

Compared with the prior art, the switching device has the beneficial effects that:

1, when the switching device is in a passage state, proper pressure can be kept between the dynamic connector and the static connector of the passage control part, so that the problem of virtual connection between the dynamic connector and the static connector is avoided, and the switching device is particularly suitable for high-current electric equipment and eliminates potential safety hazards caused by virtual connection.

2, in some embodiments of the switching device of the present invention, the dynamic connector of the path control part is entirely floatable, which is floatably mounted to the push rod, so that even if the dynamic contact of the dynamic connector and the static contact of the static connector wear and oxidize, an appropriate pressure can be maintained between the dynamic connector and the static connector, avoiding a virtual connection problem between the dynamic connector and the static connector.

3, in some embodiments of the switching device of the present invention, the connection slider of the dynamic connector of the path control section is floatable, which is capable of being guided by the guide post to generate a float with respect to the connection frame, so that even if the dynamic contact of the dynamic connector and the static contact of the static connector are worn and oxidized, an appropriate pressure can be maintained between the dynamic connector and the static connector, avoiding a virtual connection problem between the dynamic connector and the static connector.

Other advantages of the switching device of the present invention will be further disclosed and elucidated in the following description.

Drawings

Fig. 1 is a perspective view of a switching device according to a preferred embodiment of the present invention.

Fig. 2 is a perspective view of another view of the switching device according to the above preferred embodiment of the present invention.

Fig. 3 is an exploded view of the switching device according to the above preferred embodiment of the present invention.

Fig. 4 is an exploded view of another view of the switching device according to the above preferred embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of the switch device according to the above preferred embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view of another direction of the switching device according to the above preferred embodiment of the present invention.

Fig. 7 is an exploded view of a partial structure of the switching device according to the above preferred embodiment of the present invention.

Fig. 8 is an exploded view of still another view of the above-mentioned partial structure of the switching device according to the above-mentioned preferred embodiment of the present invention.

Fig. 9 is an exploded view of another view of the above-mentioned partial structure of the switching device according to the above-mentioned preferred embodiment of the present invention.

Fig. 10 is a perspective view illustrating a further partial structure of the switching device according to the above preferred embodiment of the present invention.

Fig. 11 is a perspective view of another view of the above-mentioned partial structure of the switching device according to the above-mentioned preferred embodiment of the present invention.

Fig. 12 is a schematic top view showing another partial structure of the switching device according to the above preferred embodiment of the present invention.

Fig. 13 is a schematic cross-sectional view of the switching device in a passage state according to the above preferred embodiment of the present invention.

Fig. 14 is a schematic cross-sectional view of the switching device in the open state according to the above preferred embodiment of the present invention.

Fig. 15 is a schematic sectional view of a modified example of the switching device according to the above preferred embodiment of the present invention in a passage state.

Fig. 16 is a schematic perspective view showing a partial position of a push rod of the above-mentioned modified example of the switching device according to the above-mentioned preferred embodiment of the present invention.

Fig. 17 is a schematic sectional view showing a partial position of the push rod according to the above-described modification example of the switching device according to the above-described preferred embodiment of the present invention.

Fig. 18 is a perspective view of a dynamic connector according to the modification example of the switching device according to the preferred embodiment of the present invention.

Fig. 19 is a perspective view of another view of the dynamic connector according to the above-mentioned modification example of the switching device according to the above-mentioned preferred embodiment of the present invention.

Fig. 20 is a schematic sectional view of still another modification example of the switching device according to the above preferred embodiment of the present invention in a passage state.

Fig. 21 is a perspective view of a dynamic connector according to the above modified example of the switching device according to the above preferred embodiment of the present invention.

Fig. 22 is a perspective view of another view of the dynamic connector according to the modification example of the switching device according to the above preferred embodiment of the present invention.

Fig. 23 is a schematic sectional view of another modified example of the switching device according to the above preferred embodiment of the present invention in a passage state.

Fig. 24 is a schematic sectional view of still another modified example of the switching device according to the above preferred embodiment of the present invention in a passage state.

Fig. 25 is a schematic cross-sectional view of the above-mentioned modified example of the switching device according to the above-mentioned preferred embodiment of the present invention in the open state.

Fig. 26 is an exploded view of a switching device according to another preferred embodiment of the present invention.

Fig. 27 is an exploded view showing a view of a partial structure of the switching device according to the above preferred embodiment of the present invention.

Fig. 28 is an exploded view showing another view of the above-mentioned partial structure of the switching device according to the above preferred embodiment of the present invention.

Fig. 29 is a schematic cross-sectional view of the switching device according to the above preferred embodiment of the present invention.

Fig. 30 is an enlarged schematic view of the partial position of fig. 29.

In the figure:

10. an insulating housing; 101. a housing chamber; 1011. a first end cavity; 1012. a second end cavity; 11. a bottom case; 111. blind holes of the bottom shell; 112. a bottom plate; 1121. an annular groove; 113. a first end plate; 1131. perforating an end plate; 114. a second end plate; 1141. a first slot; 1142. a second slot; 115. a first side plate; 116. a second side plate; 117. a partition plate; 1171. a partition plate groove; 1172. an embedding groove; 1173. a leaning groove; 1174. a leaning platform; 1175. a mounting groove; 1176. an assembly groove; 1177. an assembly table; 118. a top plate; 1181. a groove of the top plate; 1182. a plate body portion; 1183. a fitting portion; 11831. an assembly arm; 119. a communication passage; 1110. a chute; 12. a top cover; 121. perforating the top cover; 13. locking a screw; 14. a smooth portion; 15. a cover plate; 16. cover plate screws;

20. A driving section; 21. an eccentric wheel; 211. a first rotating shaft; 212. a second rotating shaft; 213. an operating position; 214. a slide block; 22. a push rod; 221. a driven end; 222. a mounting end; 223. an abutment table; 224. a plug-in hole; 225. punching a push rod; 226. a first rod body; 227. a second rod body; 23. a return spring; 24. assembling a cap;

30. a passage control unit; 31. a static connector; 31a, a first static connector; 31b, a second static connector; 311. a static contact; 3111. an avoidance groove; 312. a wiring contact; 313. a first assembly plate; 314. a second assembly plate; 315. a gasket; 316. a compression nut; 32. a dynamic connector; 321. a dynamic contact; 322. a connector perforation; 323. a positioning groove; 324. a holding hole; 325. a connecting frame; 326. a guide post; 327. connecting a floating block;

40. a suspension spring;

50. an insulating pad; 51. a cushion body; 52. a cartridge;

60. a stabilizing shaft portion; 61. perforating a stable shaft; 62. a convex ring; 63. a leaning portion; 631. a leaning arm; 64. a main body portion;

70. a suspension section;

80. an isolation part; 81. a first mounting cavity; 82. a second mounting cavity;

90. an arc extinguishing part; 91. arc extinguishing rack; 911. a rack groove; 912. a magnet accommodating groove; 913. a magnetic conductive member accommodating groove; 92. a magnet; 93. a magnetic conductive member;

100. Assembling a screw;

200. a fixing screw;

300. and locking the screw.

Detailed Description

Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including" or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Furthermore, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

Also, in the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms should not be construed as limiting the present disclosure; in a second aspect, the terms "a" and "an" should be understood as "at least one" or "one or more", i.e. in one embodiment the number of one element may be one, while in another embodiment the number of the element may be plural, the term "a" should not be construed as limiting the number.

A switching device according to a preferred embodiment of the present invention, which has improved safety and stability, is particularly suitable for use with high power consumers, such as a submersible vehicle, and is advantageous for ensuring stability of the submersible vehicle circuitry, will be disclosed and described in the following description with reference to fig. 1-14 of the drawings accompanying the specification. The switching device comprises an insulating housing 10, a driving part 20 and a passage control part 30 respectively arranged on the insulating housing 10, and has a passage state and a disconnection state, and the switching device is arranged to be switchable between the passage state and the disconnection state for controlling the on-off of a circuit. It will be appreciated that the switching device allows current to pass when in the on state and, correspondingly, prevents current from passing when in the off state.

Specifically, the insulating housing 10 has a receiving cavity 101. The driving part 20 comprises an eccentric wheel 21, a push rod 22 and a return spring 23, wherein the eccentric wheel 21 is rotatably mounted in the accommodating cavity 101 of the insulating housing 10, wherein the push rod 22 has a driven end 221 and a mounting end 222 corresponding to the driven end 221, the driven end 221 of the push rod 22 is drivably connected to the eccentric wheel 21, wherein the return spring 23 is sleeved on the push rod 22, and the return spring 23 is configured such that one end of the return spring 23 abuts against the driven end 221 of the push rod 22, and the other end remains unchanged relative to the insulating housing 10. The path control part 30 includes two static connectors 31 and one dynamic connector 32, wherein the two static connectors 31 are adjacently disposed at the insulating housing 10, and one end of each of the two static connectors 31 extends to the receiving cavity 101 of the insulating housing 10 to form a static contact 311 of the static connector 31, and the other end extends to the outside of the insulating housing 10 to form a wiring contact 312 of the static connector 31 for connection to a power source or an electric device, wherein a middle part of the dynamic connector 32 is floatably mounted at the mounting end 222 of the push rod 22, and opposite ends of the dynamic connector 32 have a dynamic contact 321, respectively, and a position of each of the dynamic contacts 321 of the dynamic connector 32 corresponds to a position of the static contact 311 of each of the static connectors 31.

Upon rotating the eccentric 21 in one direction (referring to fig. 12 and 13, the eccentric 21 may be rotated in a clockwise direction), the eccentric 21 pushes the dynamic connector 32 toward the direction approaching the static connector 31 by the push rod 22 until each of the dynamic contacts 321 of the dynamic connector 32 contacts the static contact 311 of each of the static connectors 31, at which time the switching device is switched from the off state to the on state to allow current to pass. It will be appreciated that during the pushing of the dynamic coupling 32 by the eccentric 21 through the push rod 22 in a direction approaching the static coupling 31, the return spring 23 is compressed to deform to accumulate elastic potential energy. Upon rotating the eccentric 21 in the opposite direction (referring to fig. 12 and 14, the eccentric 21 may be rotated in the counterclockwise direction), the return spring 23 pushes the dynamic connector 32 through the push rod 22 in a direction away from the static connector 31 during the restoration of the initial state until each of the dynamic contacts 321 of the dynamic connector 32 is away from the static contact 311 of each of the static connectors 31, at which time the switching device is switched from the on state to the off state to prevent the passage of current.

In the switching device of the present invention, the middle portion of the dynamic connector 32 of the path control part 30 is floatably mounted to the mounting end 222 of the push rod 22 so that the dynamic connector 32 as a whole is floatable, by which, on the one hand, after the switching device is switched from the open state to the path state, an appropriate pressure can be maintained between each of the dynamic contacts 321 of the dynamic connector 32 and the static contact 311 of each of the static connectors 31 to avoid a virtual connection problem between the static connector 31 and the dynamic connector 32, which makes the switching device of the present invention particularly suitable for high-current electric appliances and eliminates a safety hazard due to the virtual connection, and, on the other hand, even if the static contacts 311 of the static connector 31 and the dynamic contacts 321 of the dynamic connector 32 are subject to abrasion and oxidation, an appropriate pressure can be maintained between the static connector 31 and the dynamic connector 32 to avoid a virtual connection problem between the static connector 31 and the dynamic connector 32.

Turning now to fig. 10, 11, and 13 and 14, the center portion of the dynamic connector 32 has a connector aperture 322, the mounting end 222 of the push rod 22 is movably mounted to the connector aperture 322 of the dynamic connector 32, wherein the switching device further includes a suspension spring 40, the suspension spring 40 is sleeved on the push rod 22, and one end portion of the suspension spring 40 abuts against the push rod 22 and the other end portion abuts against the dynamic connector 32, such that the center portion of the dynamic connector 32 is floatably mounted to the mounting end 222 of the push rod 22. Referring to fig. 12 and 13, in a first stage of rotating the eccentric 21 in a clockwise direction, the eccentric 21 pushes the dynamic connector 32 by the push rod 22 toward a direction approaching the static connector 31 so that each of the dynamic contacts 321 of the dynamic connector 32 can contact the static contact 311 of each of the static connectors 31, and in a second stage of rotating the eccentric 21 in a clockwise direction, the eccentric 21 continues to apply force to the dynamic connector 32 by the push rod 22 and the suspension spring 40 so that the dynamic connector 32 has a tendency to continue forward movement to increase the pressure between each of the dynamic contacts 321 of the dynamic connector 32 and the static contact 311 of each of the static connectors 31, so that an appropriate pressure can be maintained between each of the dynamic contacts 321 of the dynamic connector 32 and the static contact 311 of each of the static connectors 31 to avoid a virtual connection problem between the dynamic connector 31 and the dynamic connector 32.

Further, the driving part 20 includes a fitting cap 24, the outer diameter of the fitting cap 24 is larger than the inner diameter of the connector through hole 322 of the dynamic connector 32, and after the mounting end 222 of the push rod 22 penetrates into the connector through hole 322 of the dynamic connector 32, the fitting cap 24 is fitted to a portion of the mounting end 222 of the push rod 22 exposing the dynamic connector 32, so as to prevent the dynamic connector 32 from falling off from the mounting end 222 of the push rod 22. Preferably, the assembly cap 24 is assembled to the mounting end 222 of the push rod 22 by screwing, that is, the assembly cap 24 is provided with an internal thread structure, and accordingly, the mounting end 222 of the push rod 22 is provided with an external thread structure, and the internal thread structure of the assembly cap 24 and the external thread structure of the mounting end 222 of the push rod 22 are matched with each other for assembling the assembly cap 24 to the mounting end 222 of the push rod 22.

Further, the push rod 22 has an abutment 223, the abutment 223 is formed at the mounting end 222, and the abutment 223 is parallel to the end surface of the dynamic connector 32, and after the mounting end 222 of the push rod 22 is mounted at the connector through hole 322 of the dynamic connector 32 and the mounting cap 24 is mounted at the mounting end 222 of the push rod 22, one end of the suspension spring 40 fitted around the mounting end 222 of the push rod 22 abuts against the abutment 223 of the push rod 22, and the other end abuts against the end surface of the dynamic connector 32, so that the middle part of the dynamic connector 32 is floatably mounted at the mounting end 222 of the push rod 22.

With continued reference to fig. 3-14, the switching device further includes an insulating pad 50, the insulating pad 50 being disposed at the driven end 221 of the push rod 22, and the insulating pad 50 isolating the driven end 221 of the push rod 22 from the eccentric 21, in such a way that the eccentric 21 is not charged when the switching device is in the on-state, to improve safety in operating the switching device.

In this particular example of the switching device of the present invention shown in fig. 1 to 14, the insulating pad 50 is mounted to the driven end 221 of the push rod 22 to position the insulating pad 50 at the driven end 221 of the push rod 22. Specifically, the insulating mat 50 includes a mat body 51 and a mounting member 52 integrally extending outwardly from the mat body 51, the push rod 22 has a mounting hole 224, the mounting hole 224 extends from the end of the driven end 221 toward the mounting end 222, wherein the mounting member 52 of the insulating mat 50 is mounted in the mounting hole 224 of the push rod 22 to mount the insulating mat 50 on the driven end 221 of the push rod 22. Preferably, the size of the pad body 51 of the insulation pad 50 is larger than the size of the driven end 221 of the push rod 22, so that the insulation pad 50 can reliably isolate the driven end 221 of the push rod 22 from the eccentric 21. Preferably, the material of the insulating pad 50 may be rubber to secure the insulating ability of the insulating pad 50 and to improve the wear resistance of the insulating pad 50.

In this specific example of the switching device of the present invention, the shape and size of the insert 52 of the insulating mat 50 are matched to those of the insert hole 224 of the push rod 22, so that after the insert 52 of the insulating mat 50 is inserted into the insert hole 224 of the push rod 22, the insulating mat 50 is reliably mounted to the driven end 221 of the push rod 22 based on friction generated between the outer wall of the insert 52 of the insulating mat 50 and the inner wall of the push rod 22 for forming the insert hole 224. And, whether the switching device is in the on state, the off state, or the switching between the on state and the off state, the return spring 23 can press the pad body 51 of the insulating pad 50 against the eccentric wheel 21, that is, the return spring 23 makes the end surface of the pad body 51 of the insulating pad 50 always abut against the eccentric wheel 21, so that the insulating pad 50 is prevented from falling from the driven end 221 of the push rod 22 to ensure the reliability of the switching device. That is, in this specific example of the switching device of the present invention, referring to fig. 12 to 14, one end portion of the return spring 23 directly abuts against the pad body 51 of the insulating pad 50, that is, one end portion of the return spring 23 indirectly abuts against the driven end 221 of the push rod 22 by abutting against the pad body 51 of the insulating pad 50. Alternatively, in other examples of the switching device of the present invention, one end of the return spring 23 may also directly abut against the driven end 221 of the push rod 22.

With continued reference to fig. 3 to 14, the switching device further includes a stab shaft portion 60, the stab shaft portion 60 having a stab shaft through hole 61, the stab shaft portion 60 being fixedly mounted to the receiving cavity 101 of the insulating housing 10, a middle portion of the push rod 22 being movably mounted to the stab shaft through hole 61 of the stab shaft portion 60, wherein when the eccentric 21 pushes the dynamic connector 32 through the push rod 22 toward a direction approaching the static connector 31, the stab shaft portion 60 can avoid the push rod 22 from being offset, so that each of the dynamic contacts 321 of the dynamic connector 32 can be aligned with and fitted to the static contact 311 of each of the static connectors 31, and thus, a contact area of the dynamic contact 321 of the dynamic connector 32 and the static contact 311 of the static connector 31 can be ensured to ensure an energizing ability of the switching device in the passage state.

Preferably, one end of the return spring 23 abuts against the stabilizing portion 60 such that the return spring 23 is configured such that one end of the return spring 23 is kept unchanged with respect to the insulating housing 10, so that when the eccentric 21 is driven to rotate in a clockwise direction to push the dynamic connector 32 by the push rod 22 toward the direction approaching the static connector 31, the pad body 51 of the insulating pad 50 can compress the return spring 23 toward the direction approaching the stabilizing portion 60 to cause the return spring 23 to be compressed to deform, and when the eccentric 21 is driven to rotate in a counterclockwise direction, the return spring 23 pushes the insulating pad 50 toward a direction away from the stabilizing portion 60 during the return to the initial state to allow the insulating pad 50 to drive the push rod 22 and the dynamic connector 32 to move so that each of the dynamic contacts 321 of the dynamic connectors 32 is away from the static contact 311 of each of the static connectors 31.

Preferably, the stabilizer 60 has a collar 62, the collar 62 surrounds the stabilizer through hole 61, and the collar 62 protrudes toward the insulating pad 50, wherein an end of the return spring 23 abutting against the stabilizer 60 is sleeved on the collar 62 of the stabilizer 60, so that the end of the return spring 23 abutting against the stabilizer 60 is prevented from sliding relative to the stabilizer 60 to prevent the return spring 23 from being displaced, thereby preventing the push rod 22 from rubbing against the return spring 23, thus not only reducing noise, but also ensuring the return ability of the return spring 23.

Turning now to fig. 1-6, the insulating housing 10 includes a bottom shell 11 and a top shell 12, the bottom shell 11 has a bottom shell blind hole 111, the top shell 12 has a top shell through hole 121, the top shell 12 is mounted on the bottom shell 11 to form the accommodating cavity 101 of the insulating housing 10 between the top shell 12 and the bottom shell 11, the bottom shell blind hole 111 of the bottom shell 11 and the top shell through hole 121 of the top shell 12 are both communicated with the accommodating cavity 101 of the insulating housing 10, and the position of the bottom shell blind hole 111 of the bottom shell 11 corresponds to the position of the top shell through hole 121 of the top shell 12. The eccentric wheel 21 has a first rotating shaft 211 and a second rotating shaft 212 on opposite sides thereof, the first rotating shaft 211 of the eccentric wheel 21 is rotatably mounted in the blind hole 111 of the bottom shell 11, and the second rotating shaft 212 of the eccentric wheel 21 is rotatably and operatively mounted in the through hole 121 of the top cover 12, so that the eccentric wheel 21 is rotatably received in the receiving cavity 101 of the insulating housing 10.

It will be appreciated that since the second shaft 212 of the eccentric 21 is rotatably mounted to the cap penetration 121 of the cap 12, the end of the second shaft 212 of the eccentric 21 is visually visible, i.e., the second shaft 212 of the eccentric 21 is visible from the outside of the switching device, so that the switching device can provide an operating position 213 at the end of the second shaft 212 of the eccentric 21 for a user to operate the eccentric 21. For example, in this particular example of the switching device of the present invention, the operating position 213 of the eccentric 21 is a recess with a hexagonal cross-section, which allows the end of an allen wrench to be inserted, so that the user can apply a force to the eccentric 21 by the allen wrench to drive the eccentric 21 to rotate in a clockwise direction or a counterclockwise direction in the receiving cavity 101 of the insulating housing 10.

It should be noted that the manner in which the top cover 12 is mounted to the bottom case 11 is not limited in the switching device of the present invention, for example, in this specific example of the switching device of the present invention, referring to fig. 1, 3 and 4, the insulating housing 10 further includes a series of locking screws 13, which lock the top cover 12 and the bottom case 11 at different positions, respectively, so that the top cover 12 and the bottom case 11 are reliably mounted.

Further, with continued reference to fig. 1-14, the bottom shell 11 of the insulating housing 10 includes a bottom plate 112, a first end plate 113, a second end plate 114, a first side plate 115, a second side plate 116, a partition plate 117 and a top plate 118, and has a communication channel 119. The first and second end plates 113 and 114 integrally extend upward from opposite ends of the bottom plate 112, respectively, the first and second side plates 115 and 116 integrally extend upward from opposite sides of the bottom plate 112, respectively, and opposite ends of the first side plate 115 are connected to one side of the first end plate 113 and one side of the second end plate 114, respectively, and opposite ends of the second side plate 116 are connected to the other side of the first end plate 113 and the other side of the second end plate 114, respectively, to form the receiving cavity 101 of the insulating case 10 between the bottom plate 112, the first end plate 113, the second end plate 114, the first side plate 115, and the second side plate 116. The bottom side and opposite ends of the partition plate 117 are connected to the bottom plate 112, the first side plate 115 and the second side plate 116, respectively, and the partition plate 117 is parallel to the first end plate 113 and the second end plate 114, so that the housing cavity 101 of the insulating housing 10 is partitioned into a first end cavity 1011 and a second end cavity 1012 by the partition plate 117. The partition plate 117 has a partition plate groove 1171, the top plate 118 has a top plate groove 1181, the top plate 118 is mounted on the partition plate 117, the top plate groove 1181 and the partition plate groove 1171 correspond to each other to form the communication channel 119 of the bottom shell 11 by the partition plate groove 1171 of the partition plate 117 and the top plate groove 1181 of the top plate 118, and the communication channel 119 of the bottom shell 11 communicates with the first end cavity 1011 and the second end cavity 1012 of the insulating housing 10. For example, the top plate 118 and the divider plate 117 may be locked by a set of locking screws 300. After the top cover 12 is mounted to the bottom case 11, edges of the top cover 12 are supported by the first end plate 113, the second end plate 114, the first side plate 115, and the second side plate 116, respectively, and middle portions of the top cover 12 are supported by the partition plate 117 and the top plate 118, respectively, to close the cavity of the first end cavity 1011 of the insulating housing 10 and to close the cavity of the second end cavity 1012 of the insulating housing 10 by the top cover 12.

Specifically, the partition plate 117 further has a mounting groove 1175 and a fitting groove 1176, the partition plate groove 1171 is formed at the bottom of the mounting groove 1175, the fitting groove 1176 is located at the upper portion of the mounting groove 1175, and the width dimension of the fitting groove 1176 is larger than the width dimension of the mounting groove 1175, so that the partition plate 117 forms a fitting table 1177 on opposite sides of the mounting groove 1175, respectively. The top plate 118 includes a plate body portion 1182 and a mounting portion 1183, wherein the width of the mounting portion 1183 is larger than that of the plate body portion 1182, so that mounting arms 11831 are respectively formed on two opposite sides of the plate body portion 1182 by the mounting portion 1183, and the top plate recess 1181 is formed at the bottom of the plate body portion 1182. The plate body portion 1182 of the top plate 118 is mounted to the mounting groove 1175 of the partition plate 117, the fitting portion 1183 is fitted to the fitting groove 1176 of the partition plate 117, and each of the fitting arms 11831 of the fitting portion 1183 is respectively snapped against each of the fitting stages 1177 of the partition plate 117, so that each of the fitting arms 11831 of the fitting portion 1183 and each of the fitting stages 1177 of the partition plate 117 can be locked by the locking screw 300 and the top of the top plate 118 is prevented from protruding from the top of the partition plate 117.

The bottom case blind hole 111 of the bottom case 11 is formed in the bottom plate 112, and the bottom case blind hole 111 of the bottom case 11 is in communication with the first end cavity 1011 of the insulating housing 10, that is, the eccentric 21 is rotatably received in the first end cavity 1011 of the insulating housing 10. The middle portion of each of the static connectors 31 is fixedly mounted to the second end plate 114 of the bottom case 11, respectively, such that one end portion of each of the static connectors 31 extends to the second end cavity 1012 of the insulating housing 10 to form the static contact 311, and the other end portion of each of the static connectors 31 extends to the outside of the insulating housing 10 to form the wire contact 312. The middle part of the push rod 22 is movably held in the communication passage 119 of the bottom case 11, and one end part of the push rod 22 is located in the first end cavity 1011 of the insulating housing 10 to be drivably connected to the eccentric 21, and the other end part of the push rod 22 is located in the second end cavity 1012 of the insulating housing 10 to floatably mount the dynamic connector 32, that is, the dynamic connector 32 is movably disposed in the second end cavity 1012 of the insulating housing 10.

Preferably, referring to fig. 3, 6 and 11, the insulation housing 10 further includes a smooth portion 14, the smooth portion 14 is a rubber ring having a circular cross-section, which is fixedly installed to the bottom plate 112 and surrounds the bottom plate blind hole 111 of the bottom plate 11, the smooth portion 14 is used for supporting the eccentric 21 to isolate the bottom plate 112 of the bottom plate 11 from the eccentric 21, and since the smooth portion 14 and the eccentric 21 have a small contact area, not only friction force between the eccentric 21 and the smooth portion 14 can be reduced during driving the eccentric 21 to rotate so that the eccentric 21 can smoothly rotate, but also abrasion caused to the eccentric 21 can be reduced. Further, the bottom plate 112 of the bottom case 11 has an annular groove 1121, and a portion of the smooth portion 14 is fitted into the annular groove 1121 of the bottom plate 112 to fixedly mount the smooth portion 14 to the bottom plate 112. Alternatively, in other examples of the switching device of the present invention, the smooth portion 14 of the insulating housing 10 is a set of balls, a portion of which is received in the annular groove 1121 of the bottom plate 112 and rollably held between the bottom plate 112 and the eccentric 21.

Preferably, referring to fig. 3 and 11, the bottom case 11 has an arc-shaped sliding groove 1110, the sliding groove 1110 is adjacent to the bottom case blind hole 111, the eccentric 21 has a sliding block 214 adjacent to the first rotation shaft 211, wherein the sliding block 214 of the eccentric 21 is slidably mounted to the sliding groove 1110 of the bottom case 11, and the sliding block 214 of the eccentric 21 and the sliding groove 1110 of the bottom case 11 cooperate with each other for limiting a rotation angle of the eccentric 21.

With continued reference to fig. 3-11, the partition 117 of the bottom shell 11 has an insertion groove 1172 and a abutment groove 1173, the insertion groove 1172 is located at a side portion of the partition groove 1171 and is connected to the second end cavity 1012, the abutment groove 1173 is located above the insertion groove 1172, and a width dimension of the abutment groove 1173 is larger than a width dimension of the insertion groove 1172, so that the partition 117 forms an abutment table 1174 on opposite sides of the insertion groove 1172. The stabilizer portion 60 includes a catching portion 63 and a body portion 64 integrally extending downward from the catching portion 63, the catching portion 63 having a width greater than that of the body portion 64 such that a catching arm 631 is formed by the catching portion 63 on opposite sides of the body portion 64, respectively, and the stabilizer through hole 61 and the collar 62 are formed on the body portion 64, respectively. The main body portion 64 of the stabilizing portion 60 is fitted into the fitting groove 1172 of the partition plate 117, the abutment portion 63 of the stabilizing portion 60 is fitted into the abutment groove 1173 of the partition plate 117, and each abutment arm 631 of the abutment portion 63 is abutted against each abutment table 1174 of the partition plate 117, respectively, so that each abutment arm 631 of the abutment portion 63 and each abutment table 1174 of the partition plate 117 can be locked by the fixing screw 200 to reliably mount the stabilizing portion 60 to the bottom case 11 and to prevent the top of the stabilizing portion 60 from protruding from the top of the partition plate 117. Referring to FIG. 6, the position of the top plate 118 and the position of the stabilizing section 60 are side by side.

Further, with continued reference to fig. 3, 4, 7 and 8, the second end plate 114 of the bottom shell 11 has a first slot 1141 and a second slot 1142, the first slot 1141 and the second slot 1142 are spaced apart from each other and each communicate with the second end cavity 1012 of the insulating housing 10, a middle portion of one of the static connectors 31 is mounted to the first slot 1141 of the second end plate 114 such that the middle portion of the one of the static connectors 31 is fixedly mounted to the second end plate 114, and a middle portion of the other of the static connectors 31 is fixedly mounted to the second slot 1142 of the second end plate 114 such that the middle portion of the one of the static connectors 31 is fixedly mounted to the second end plate 114.

For ease of illustration and understanding, one of the two static connectors 31 is defined as a first static connector 31a and the other is defined as a second static connector 31b. The middle portion of the first static connector 31a is fixedly mounted to the first slot 1141 of the second end plate 114 of the bottom housing 11, one end portion of the first static connector 31a extends to the second end cavity 1012 of the insulating housing 10 to form the static contact 311, and the other end portion extends to the outside of the insulating housing 10 to form the wire connection contact 312 for connection to a live wire or an anode. The middle portion of the second static connector 31b is fixedly mounted to the second slot 1142 of the second end plate 114 of the bottom shell 11, one end portion of the second static connector 31b extends to the second end cavity 1012 of the insulating housing 10 to form the static contact 311, and the other end portion extends to the outside of the insulating housing 10 to form the wire connection contact 312 for connecting a neutral wire or a negative electrode.

Fig. 2 to 4, 7 and 8 show specific structures of the first slot 1141 fixedly mounting the middle portion of the first static connector 31a to the second end plate 114 of the bottom chassis 11 and the second slot 1142 fixedly mounting the middle portion of the second static connector 31b to the second end plate 114 of the bottom chassis 11. Specifically, the middle portion of the first static connector 31a has a first fitting plate 313, after the middle portion of the first static connector 31a is held in the first slot 1141 of the second end plate 114 of the bottom shell 11, the first fitting plate 313 is fitted to the second end plate 114, and the first fitting plate 313 is attached to the outer wall of the second end plate 114 of the bottom shell 11, for example, the first fitting plate 313 and the second end plate 114 may be fitted by a set of fitting screws 100 to fixedly mount the middle portion of the first static connector 31a in the first slot 1141 of the second end plate 114 of the bottom shell 11. The middle portion of the second static connector 31b has a second mounting plate 314, after the middle portion of the second static connector 31b is held in the second slot 1142 of the second end plate 114 of the bottom shell 11, the second mounting plate 314 is mounted on the second end plate 114, and the second mounting plate 314 is attached to the outer wall of the second end plate 114 of the bottom shell 11, for example, the second mounting plate 314 and the second end plate 114 may be mounted by a set of mounting screws 100 to fixedly mount the middle portion of the second static connector 31b in the second slot 1142 of the second end plate 114 of the bottom shell 11.

In addition, referring to fig. 1 to 4 and 12 to 14, the wire connection contact 312 of the first static connector 31a and the wire connection contact 312 of the second static connector 31b are respectively provided with a spacer 315 and a pressing nut 316 for wire connection.

In some embodiments of the switching device according to the invention, the bottom shell 11 of the insulating housing 10 is produced by an injection molding process, and in this particular example of the switching device according to the invention shown in fig. 1 to 14, the bottom shell 11 of the insulating housing 10 is produced by a milling process. To facilitate milling of the partition plate groove 1171 of the partition plate 117 of the bottom case 11, the first end plate 113 of the bottom case 11 is provided with an end plate perforation 1131, and the position of the end plate perforation 1131 of the first end plate 113 corresponds to the position of the partition plate groove 1171 of the partition plate 117, wherein the partition plate groove 1171 of the partition plate 117 is formed by milling a middle portion of the partition plate 117 by a milling cutter extending into the receiving cavity 101 of the insulating housing 10 through the end plate perforation 1131 of the first end plate 113. After the eccentric 21 is mounted to the receiving cavity 101 of the insulating housing 10, the position of the end plate penetration 1131 of the first end plate 113 of the bottom case 11 corresponds to the eccentric 21 so that a user can observe the state of the eccentric 21 through the end plate penetration 1131 of the first end plate 113, i.e., the end plate penetration 1131 of the first end plate 113 is an observation window. In other words, one of the end plate perforations 1131 of the first end plate 113 of the bottom shell 11 serves to facilitate machining of the bottom shell 11 with a milling process, in particular to facilitate milling of the partition plate grooves 1171 of the partition plates 117 of the bottom shell 11, and the other of the first end plate 113 serves to facilitate viewing of the state of the eccentric 21.

Preferably, referring to fig. 1, 3, 7 to 9, and 12 to 14, the insulation housing 10 further includes a cover plate 15, the cover plate 15 is detachably mounted to the first end plate 113 of the bottom case 11, and the cover plate 15 is capable of closing the end plate through hole 1131 of the first end plate 113, wherein when it is required to view the state of the eccentric 21 in the receiving cavity 101 of the insulation housing 10, the cover plate 15 is detached from the first end plate 113 of the bottom case 11 to expose the end plate through hole 1131 of the first end plate 113, and at this time, a user is allowed to view the state of the eccentric 21 in the receiving cavity 101 of the insulation housing 10 through the end plate through hole 1131 of the first end plate 113. It will be appreciated that depending on the state of the eccentric 21, the user can determine whether the switching device is in the on state or the off state.

The insulating housing 10 further comprises at least one cover screw 16, the cover screw 16 being used to securely mount the cover 15 to the first end plate 113 of the bottom shell 11.

Fig. 15 to 19 show a modified example of the switching device of the above preferred embodiment of the present invention, unlike the switching device shown in fig. 1 to 14, in this specific example of the switching device of the present invention shown in fig. 15 to 19, the switching device includes a deformable suspension 70 instead of the suspension spring 40 of the switching device shown in fig. 1 to 14, the suspension 70 being integrally coupled to the mounting end 222 of the push rod 22 and the dynamic connector 32 such that a middle portion of the dynamic connector 32 is floatably mounted to the mounting end 222 of the push rod 22.

It will be appreciated that in this particular example of the switching device of the invention shown in fig. 15 to 19, the dynamic connector 32 as a whole is floatable, in such a way that, on the one hand, after switching the switching device from the open state to the closed state, a suitable pressure can be maintained between each of the dynamic contacts 321 and 311 of each of the static connectors 31, 32, to avoid the occurrence of a virtual connection problem between the static connectors 31 and 32, which makes the switching device of the invention particularly suitable for high-current consumers and eliminates the potential safety hazards due to virtual connection, and on the other hand, even if the static contacts 311 of the static connectors 31 and the dynamic contacts 321 of the dynamic connectors 32 are worn and oxidized, a suitable pressure can be maintained between the static connectors 31 and 32 to avoid the occurrence of a virtual connection problem between the static connectors 31 and 32.

In addition, unlike the switching device shown in fig. 1 to 14, in this specific example of the switching device of the present invention shown in fig. 15 to 19, since the levitation part 70 may be integrally coupled to the mounting end 222 of the push rod 22 and the dynamic connector 32, the levitation part 70 may not only make the middle part of the dynamic connector 32 floatably mounted to the mounting end 222 of the push rod 22, but also the driving part 20 may not need to configure the fitting cap 24 to reduce the fitting cost and the fitting cost of the switching device.

In this specific example of the switching device of the present invention shown in fig. 15 to 19, the levitation part 70 may be formed between the mounting end 222 of the push rod 22 and the dynamic connector 32 by an injection molding process such that the levitation part 70 is integrally coupled to the mounting end 222 of the push rod 22 and the dynamic connector 32. For example, first, the mounting end 222 of the push rod 22 is held at the position of the connector penetration 322 of the dynamic connector 32 by a mold with a gap between the outer wall of the mounting end 222 of the push rod 22 and the inner wall of the dynamic connector 32 for forming the connector penetration 322, and second, injection molding material (e.g., rubber) is injected into the mold, which contacts the outer wall of the mounting end 222 of the push rod 22 and the inner wall of the dynamic connector 32 for forming the connector penetration 322 after filling the gap, and third, the suspension 70 is released after the injection molding material is cured to form the suspension 70, and at this time the suspension 70 is integrally bonded to the mounting end 222 of the push rod 22 and the dynamic connector 32, and the suspension 70 has deformability.

In this particular example of the switching device of the invention illustrated in fig. 15 to 19, the suspension 70 is integrally joined between the mounting end 222 of the push rod 22 and the dynamic connector 32 by an injection molding process, the rubber material imparting to the suspension 70 a deformability such that, in a first phase of rotation of the eccentric 21 in a clockwise direction, the eccentric 21 pushes the dynamic connector 32 by the push rod 22 in a direction approaching the static connector 31 so that each of the dynamic contacts 321 of the dynamic connector 32 can contact the static contact 311 of each of the static connectors 31, in a second phase of rotation of the eccentric 21 in a clockwise direction, the eccentric 21 continues to exert a force on the dynamic connector 32 by the push rod 22 so that the dynamic connector 32 has a tendency to continue to move forward increasing the pressure between each of the dynamic contacts 321 and 311 of the dynamic connector 32, so that, in a second phase of rotation of the eccentric 21 continues to the dynamic connector 32, the pressure between each of the dynamic contacts 311 of the dynamic connector 32 can be maintained and the dynamic connector 32, and a proper deformation between the dynamic connector 31 can occur. It should be noted that the deformability of the suspension 70 is related to the thickness dimension and material of the suspension 70.

With continued reference to fig. 15 to 19, the push rod 22 has at least one push rod through hole 225, the push rod through hole 225 extends in a direction perpendicular to the extending direction of the push rod 22, the push rod through hole 225 is provided at the mounting end 222 of the push rod 22, wherein a portion of the suspending portion 70 is formed at the push rod through hole 225 of the push rod 22, so that the suspending portion 70 can be prevented from falling off from the mounting end 222 of the push rod 22. It will be appreciated that it is possible that a portion of the suspension 70 is formed in the pushrod perforations 225 of the pushrod 22 because the suspension 70 is integrally bonded between the mounting end 222 of the pushrod 22 and the dynamic connector 32 from the injection molded material.

With continued reference to fig. 15 to 19, the dynamic connector 32 has at least one positioning groove 323, and a portion of the suspending portion 70 is formed in the positioning groove 323 of the dynamic connector 32, so that the suspending portion 70 can be prevented from falling off from the dynamic connector 32. It will be appreciated that since the suspension 70 is integrally bonded between the mounting end 222 of the push rod 22 and the dynamic connector 32 by the injection molding material, it is possible that a portion of the suspension 70 is formed in the positioning groove 323 of the dynamic connector 32.

Preferably, the dynamic coupling 32 has one positioning groove 323 on opposite sides thereof, the push rod 22 has two push rod through holes 225, the position of the push rod through hole 225 on the left side of the push rod 22 corresponds to the position of the positioning groove 323 on the left side of the dynamic coupling 32, and the position of the push rod through hole 225 on the right side of the push rod 22 corresponds to the position of the positioning groove 323 on the right side of the dynamic coupling 32, in such a way that the levitation part 70 can be reliably held between the mounting end 222 of the push rod 22 and the dynamic coupling 32.

Fig. 20 to 22 show a modified example of the switching device of the above preferred embodiment of the present invention, unlike the switching device shown in fig. 15 to 19, in this specific example of the switching device of the present invention shown in fig. 20 to 22, the dynamic connector 32 further has at least one holding hole 324 penetrating opposite sides of the dynamic connector 32 to communicate with two positioning grooves 323, wherein a portion of the levitation portion 70 is formed at the holding hole 324 of the dynamic connector 32, such that the levitation portion 70 can be prevented from falling off from the mounting end 222 of the push rod 22.

Fig. 23 shows a modified example of the switching device of the above preferred embodiment of the present invention, unlike the switching device shown in fig. 1 to 14, in this specific example of the switching device of the present invention shown in fig. 23, the switching device further includes a partition 80, the partition 80 is deformably provided to the receiving cavity 101 of the insulating housing 10, and the periphery of the partition 80 is fixed to the insulating housing 10. For example, the partition 80 may be made of rubber, and a periphery thereof may be locked to the partition 117 of the bottom case 11 of the insulating case 10, and a middle portion of the partition 80 may correspond to the partition groove 1171 of the partition 117 of the bottom case 11 so that the middle portion of the partition 80 may be deformed. The push rod 22 includes a first rod 226 and a second rod 227, the first rod 226 extends between the isolating portion 80 and the eccentric 21, the second rod 227 extends between the isolating portion 80 and the dynamic connector 32, and the position of the first rod 226 corresponds to the position of the second rod 227.

That is, in this specific example of the switching device of the present invention shown in fig. 23, the isolating part 80 physically isolates the first rod body 226 and the second rod body 227 in such a manner that the eccentric 21 and the first rod body 226 are not electrified when the switching device is in the passage state, to improve safety in operating the switching device. And, the switching device may not dispose the insulation pad 50 any more by the way that the first rod body 226 and the second rod body 227 are separated by the separation portion 80.

Further, with continued reference to fig. 23, the spacer 80 has a first mounting cavity 81 and a second mounting cavity 82 on opposite sides thereof, respectively, the first mounting cavity 81 and the second mounting cavity 82 being positioned to correspond to each other, wherein one end of the first rod 226 is mounted to the first mounting cavity 81 of the spacer 80 such that the first rod 226 can be securely held between the spacer 80 and the eccentric 21, and wherein one end of the second rod 227 is mounted to the second mounting cavity 82 of the spacer 80 such that the second rod 227 can be securely held between the spacer 80 and the dynamic connector 32. Alternatively, in other examples of the switching device of the present invention, the isolating part 80 may be integrally coupled to the first rod 226 and the second rod 227 such that the first rod 226, the isolating part 80, and the second rod 227 form one body.

Preferably, in this specific example of the switching device of the present invention shown in fig. 23, the isolating part 80 may separate the receiving cavity 101 of the insulating housing 10 into two separate first end cavities 1011 and second end cavities 1012, that is, the first end cavities 1011 and the second end cavities 1012 of the insulating housing 10, in addition to being capable of physically isolating the first rod body 226 and the second rod body 227, so that the second end cavities 1012 of the insulating housing 10 may be a sealed space, and external moisture is prevented from entering the second end cavities 1012 of the insulating housing 10, thereby greatly slowing down the oxidation speed of the static contacts 311 of the static connector 31 and the dynamic contacts 321 of the dynamic connector 32, to improve the reliability of the switching device and extend the service life of the switching device.

Fig. 24 and 25 show a modified example of the switching device of the above preferred embodiment of the present invention, unlike the switching device shown in fig. 1 to 14, in this specific example of the switching device of the present invention shown in fig. 24 and 25, a portion of the dynamic connector 32 is floatable.

Specifically, the static contacts 311 of each static connector 31 have a corresponding escape slot 3111, the dynamic connector 32 includes a connecting frame 325, two guide posts 326 and two connecting floating blocks 327, the middle portion of the connecting frame 325 is fixedly mounted to the mounting end 222 of the push rod 22, each guide post 326 extends outwardly from opposite ends of the connecting frame 325, and each connecting floating block 327 is floatably mounted to each guide post 326, so that the dynamic connector 32 is floatable. When the eccentric wheel 21 pushes the dynamic connector 32 through the push rod 22, each guide post 326 of the dynamic connector 32 extends into the corresponding avoiding groove 3111 of each static connector 31, and each connecting floating block 327 is pushed to further contact the opposite ends of the connecting frame 325 after contacting the static contact 311 of each static connector 31, so as to avoid the virtual connection problem of the dynamic connector 32 and the static connector 31, which makes the switching device of the present invention particularly suitable for high-current electric equipment and eliminates the potential safety hazard caused by virtual connection.

Preferably, with continued reference to fig. 24 and 25, the switch device includes two suspension springs 40, each suspension spring 40 being respectively sleeved on each guide post 326, and one end of the suspension spring 40 being abutted against the connection frame 325, and the other end being abutted against the connection slider 327, such that the suspension springs 40 make the connection slider 327 floatable with respect to the connection frame 325.

Fig. 26 to 30 show a modified example of the switching device of the above preferred embodiment of the present invention, unlike the switching device shown in fig. 1 to 14, in this specific example of the switching device of the present invention shown in fig. 26 to 30, the switching device further includes an arc extinguishing portion 90 for extinguishing an arc generated between the static connector 31 and the dynamic connector 32. Specifically, the arc extinguishing part 90 includes an arc extinguishing frame 91 and a pair of magnets 92 disposed on the arc extinguishing frame 91, wherein each of the magnets 92 is disposed on opposite ends of the arc extinguishing frame 91 and has a frame groove 911, and each of the magnets 92 is disposed above each of the frame grooves 911 of the arc extinguishing frame 91, wherein the arc extinguishing frame 91 is disposed at a middle portion of two of the static connectors 31, and a position of each of the static connectors 31 adjacent to the static contact 311 is held at each of the frame grooves 911 of the arc extinguishing frame 91, such that each of the magnets 92 is disposed at a position of each of the static connectors 31 adjacent to the static contact 311. When the switching device is switched from the on state to the off state to generate an arc between the static connector 31 and the dynamic connector 32, each of the magnets 92 of the arc extinguishing portion 90 serves to extinguish the arc to secure safety.

It should be noted that the manner in which the magnet 92 is provided to the arc extinguishing frame 91 is not limited to the switching device of the present invention. For example, referring to fig. 29 and 30, the arc extinguishing frame 91 has two magnet receiving grooves 912, and each of the magnets 92 is respectively received in each of the magnet receiving grooves 912 of the arc extinguishing frame 91 to dispose the magnets 92 in the arc extinguishing frame 91. Preferably, the arc extinguishing frame 91 further has a magnetic conductive member receiving groove 913, each of the magnet receiving grooves 912 integrally extends downward from the magnetic conductive member receiving groove 913, wherein the arc extinguishing portion 90 further includes a magnetic conductive member 93, the magnetic conductive member 93 is disposed on the arc extinguishing frame 91 in such a manner that the magnetic conductive member 93 is received in the magnetic conductive member receiving groove 913, wherein the magnetic conductive member 93 is used to enhance a magnetic field strength of the magnet 92 in the direction of the static connector 31, so as to enhance an arc extinguishing capability of the arc extinguishing portion 90.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A switching device, comprising:

an insulating housing, wherein the insulating housing has a receiving cavity;

2. The switching device of claim 1, wherein the dynamic connector has a connector aperture in a middle portion thereof, the mounting end of the pushrod being movably mounted to the connector aperture of the dynamic connector, wherein the switching device further comprises a suspension spring that is nested against the pushrod with one end of the suspension spring abutting against the pushrod and the other end abutting against the dynamic connector.

3. The switching device of claim 1, wherein the dynamic connector has a connector aperture in a middle portion thereof, the mounting end of the pushrod being movably mounted to the connector aperture of the dynamic connector, wherein the switching device further comprises a deformable suspension integrally coupled to the mounting end of the pushrod and the dynamic connector.

4. A switching device according to claim 3, wherein the push rod has at least one push rod perforation, the perforation extending in a direction perpendicular to the direction of extension of the push rod, the push rod perforation being provided at the mounting end of the push rod, wherein a portion of the suspension is formed in the push rod perforation of the push rod.

5. The switching device of claim 4, wherein the dynamic connector has at least one detent, and a portion of the floating portion is formed in the detent of the dynamic connector.

6. The switching device according to any one of claims 1 to 5, further comprising a stab shaft portion having a stab shaft penetration hole, the stab shaft portion being fixedly mounted to the receiving cavity of the insulating housing, a middle portion of the push rod being movably mounted to the stab shaft penetration hole of the stab shaft portion to prevent the push rod from being deviated by the stab shaft portion.

7. The switching device of claim 6, wherein one end of the return spring abuts the stabile shaft portion.

8. The switching device of any one of claims 1 to 5, further comprising an insulating pad mounted to the driven end of the pushrod and isolating the driven end of the pushrod from the eccentric.

9. The switching device of any one of claims 1 to 5, further comprising a spacer deformably disposed in the receiving cavity of the insulating housing and a periphery of the spacer being secured to the insulating housing, wherein the pushrod comprises a first rod extending between the spacer and the eccentric and a second rod extending between the spacer and the dynamic connector and a position of the first rod corresponding to a position of the second rod.

10. The switchgear as claimed in claim 9, wherein the said partition has a first and a second mounting cavity, the said first and second mounting cavities being located on opposite sides of the said partition and the location of the said first and second mounting cavities corresponding, wherein one end of the said first rod is mounted to the said first mounting cavity of the said partition and one end of the said second rod is mounted to the said second mounting cavity of the said partition.

11. The switchgear device according to any one of claims 1 to 5, wherein the insulating housing comprises a bottom shell and a top cover, the bottom shell having a bottom shell blind hole, the top cover having a top cover perforation, the top cover being mounted to the bottom shell to form the receiving cavity between the top cover and the bottom shell, and a position of the top cover perforation of the top cover corresponds to a position of the bottom shell blind hole of the bottom shell, wherein opposite sides of the eccentric have a first rotation axis and a second rotation axis, respectively, the first rotation axis of the eccentric being rotatably mounted to the bottom shell blind hole of the bottom shell, the second rotation axis of the eccentric being rotatably and operatively mounted to the top cover perforation of the top cover.