Contact system

Abstract

This utility model relates to the field of low-voltage electrical appliances, specifically to a contact system in which a first stationary contact and a second stationary contact are arranged around the moving contact mechanism along the rotation direction of the moving contact mechanism; the second stationary contact has a second bearing portion, a second transition portion, a second connecting portion, a sampling portion, and a second wiring portion connected in sequence, the second bearing portion having a second stationary contact point, and the second bearing portion, the second transition portion, and the second connecting portion forming a U-shaped structure; the planes of the first wiring portion and the second wiring portion of the first stationary contact are parallel to the rotation axis of the moving contact mechanism and are parallel to each other, and the sides of the first and second stationary contacts used for contacting external wires face the same direction; the contact system also includes a sampling element disposed on the sampling portion, the sampling element being a Hall sensor or a shunt; the contact system is easy to wire and facilitates real-time monitoring of the current carried by the contact system.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a contact system. Background Technology

[0002] An existing contact system includes a moving contact mechanism and a stationary contact assembly that work together. The moving contact mechanism is rotatably mounted, and the stationary contact assembly includes two stationary contacts arranged around the moving contact mechanism along its rotation direction. In this type of contact system, the sides of the terminal blocks of the two stationary contacts that are used to contact external wires often face different directions, which is not conducive to wiring operations; moreover, it lacks a structure for monitoring the current flowing through the contact system. In addition, one of the two stationary contacts often has a complex shape due to manufacturing and layout requirements, resulting in a larger assembly space required for the contact system. Summary of the Invention

[0003] The purpose of this invention is to overcome at least one defect of the prior art and provide a contact system that is easy to wire and facilitates real-time monitoring of the current carried by the contact system.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A contact system includes a moving contact mechanism and a first stationary contact and a second stationary contact disposed around the moving contact mechanism along the rotation direction of the moving contact mechanism; the first stationary contact includes a first wiring portion;

[0006] The second stationary contact includes a second bearing portion, a second transition portion, a second connecting portion, a sampling portion, and a second wiring portion connected in sequence. The second bearing portion is provided with a second stationary contact point. The second bearing portion, the second transition portion, and the second connecting portion are in a U-shaped structure. The planes of the first wiring portion and the second wiring portion are parallel to the rotation axis of the moving contact mechanism and are parallel to each other. The sides of the first wiring portion and the second wiring portion used to contact the external wire face the same direction. The contact system also includes a sampling element disposed on the sampling portion. The sampling element is a Hall sensor or a shunt.

[0007] Furthermore, the first stationary contact has an overall U-shaped structure and also includes a first bearing portion and a first transition portion that are spaced apart from the first wiring portion. The first bearing portion, the first transition portion and the first wiring portion are connected in sequence, and the first bearing portion is provided with a first stationary contact.

[0008] Furthermore, the second connecting part, the sampling part, and the second wiring part are generally in the form of a straight plate structure; the second bearing part, the second transition part, and the second connecting part form a U-shaped part, and the sampling part and the second wiring part protrude on one side of the U-shaped part in the opening direction of the U-shaped part.

[0009] Furthermore, the planes containing the first and second bearing portions are both parallel to the rotation axis of the moving contact mechanism and are parallel to each other.

[0010] Furthermore, the end of the first bearing portion away from the first transition portion is inclined away from the end of the first bearing portion connected to the first transition portion relative to the end of the first bearing portion connected to the first transition portion; the end of the second bearing portion away from the second transition portion is inclined away from the end of the second bearing portion connected to the second transition portion relative to the end of the second bearing portion connected to the second transition portion.

[0011] Furthermore, the first stationary contact and the second stationary contact are arranged side by side at intervals along the first direction d1, and the first stationary contact is offset towards the second stationary contact on the third direction d3. The first direction d1 and the third direction d3 are perpendicular to each other and both are perpendicular to the rotation axis of the moving contact mechanism.

[0012] Furthermore, the sampling section and the second wiring section are located on one side of the second bearing section in the third direction d3, and the first stationary contact is located on the other side of the second bearing section in the third direction d3.

[0013] Furthermore, the first wiring portion, the first bearing portion, the second bearing portion, and the second connecting portion are arranged sequentially along the first direction d1.

[0014] Furthermore, the contact system also includes a first stationary arc-inducing plate, a second stationary arc-inducing plate, and a moving arc-inducing part. One end of the first stationary arc-inducing plate is disposed on the first bearing part and the other end is used to extend into the first arc-extinguishing chamber. One end of the second stationary arc-inducing plate is disposed on the second bearing part and the other end is used to extend into the second arc-extinguishing chamber. Each of the two moving contacts of the moving contact mechanism is provided with a moving arc-inducing part, and the two moving arc-inducing parts cooperate with the first stationary arc-inducing plate and the second stationary arc-inducing plate, respectively.

[0015] Furthermore, one end of the first static arc-inducing plate disposed on the first bearing portion is in contact with and connected to the first static contact, and the end of the first static arc-inducing plate extending toward the first arc-extinguishing chamber is located on one side of the first arc-extinguishing chamber and is arranged side by side with the arc-extinguishing grid plate of the first arc-extinguishing chamber; one end of the second static arc-inducing plate disposed on the second bearing portion is in contact with and connected to the second static contact, and the end of the second static arc-inducing plate extending toward the second arc-extinguishing chamber is located on one side of the second arc-extinguishing chamber and is arranged side by side with the arc-extinguishing grid plate of the second arc-extinguishing chamber.

[0016] In the contact system of this utility model, the first wiring portion of the first stationary contact and the second wiring portion of the second stationary contact have the sides for contacting external wires facing the same direction, which facilitates wiring by the operator; moreover, the sampling portion of the second stationary contact is provided with a sampling element, which facilitates sampling of the current carried by the contact system and realizes real-time monitoring.

[0017] Furthermore, the second bearing portion, the second transition portion, and the second connecting portion of the second stationary contact form a U-shaped portion, and the second connecting portion, the sampling portion, and the second wiring portion are all in a straight plate structure, which is beneficial for controlling the installation space required for the second stationary contact and for facilitating the placement of the sampling component on the sampling portion; furthermore, the first stationary contact is in a U-shaped structure, which makes the overall structure of the stationary contact group simple and occupies little space. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the switching device of this utility model;

[0019] Figure 2 This is a first cross-sectional view of the switching device of this utility model;

[0020] Figure 3 This is a top projection view of the switch device of this utility model without the top cover;

[0021] Figure 4 This is a second cross-sectional view of the switching device of this utility model;

[0022] Figure 5 This is a side projection view of the operating device and switch module of this utility model in the assembled state;

[0023] Figure 6 This is a three-dimensional structural diagram of the operating device of this utility model, showing the connection relationship between the electromagnetic system and the linkage components of the transmission structure;

[0024] Figure 7 This is a three-dimensional structural diagram of the switch module of this utility model;

[0025] Figure 8 This is a side projection view of the switch module of this utility model with one half-shell removed.

[0026] Explanation of reference numerals in the attached figures

[0027] Outer shell 1, first space 1-31, second space 1-32, transmission space 1-320, third space 1-33, base 11, mounting foot 11-1, top cover 12, outer shell first exhaust window 12-1, outer shell second exhaust window 12-2, outer shell mating part 12-3;

[0028] Switching unit s, switching module group t, switching module 2, module shell 2-0, module half shell 2-00, module shell guide hole 2-01, arc extinguishing chamber exhaust window 2-02, connecting rod shaft insertion hole 2-06, buffer chamber 2-1, first stationary contact 21, first stationary contact point 21c, first wiring part 21-2, first transition part 21-3, first bearing part 21-1, first stationary arc ignition plate 21i, second stationary contact 22, second stationary contact point 22c, second wiring part 22-0, sampling part 22-4, Second connecting part 22-2, Second transition part 22-3, Second bearing part 22-1, Second static arc-inducing plate 22i, Moving contact mechanism 23, Moving contact 23-1, Moving contact bridge 23-10, Moving arc-inducing part 23-11, Contact support 23-2, Contact moving hole 23-20, Contact spring 23-3, Arc extinguishing chamber 24, Buffer blocking part 25, Permanent magnet 26, Magnetic conductor 27, Magnetic conductor side plate 27-1, Magnetic conductor connecting plate 27-2, Gas generating part 28;

[0029] Electromagnetic system 3, armature 31, armature horizontal arm 31-1, armature vertical arm 31-0, armature connecting hole 310, magnetizing component m, magnetic yoke 32, magnetic yoke back plate 32-0, magnetic yoke arm 32-1, magnetic yoke hand 32-2, coil assembly 33.

[0030] Transmission structure 4, fixed shaft 40, linkage component 41, linkage component driven part 41-1, driven part connecting arm 41-11, driven part connecting hole 411, linkage component transmission part 41-2, linkage component cavity 412, linkage component drive part 41-3, drive part connecting hole 413, positioning table 414, connecting rod 42, connecting rod side plate 42-1, connecting rod connecting hole 42-10, connecting rod drive hole 42-11, connecting rod shaft hole 42-12, connecting rod bridge 42-2, connecting shaft 43, linkage shaft 44, connecting rod rotating shaft 45;

[0031] Reset component 5;

[0032] Eliminate free plate 6;

[0033] Sample 7;

[0034] Control system 8. Detailed Implementation

[0035] The specific embodiments of the switching device of this utility model are further described below with reference to the accompanying drawings. The switching device of this utility model is not limited to the description of the following embodiments.

[0036] like Figure 2-6As shown in Figure 8, the height, width, and length directions of the switching device of this utility model are the same as the first direction d1, the second direction d2, and the third direction d3, respectively, and it includes an electromagnetic system 3 and a switching unit s. The first direction d1, the second direction d2, and the third direction d3 are perpendicular to each other in three-dimensional space. The electromagnetic system 3 includes a magnetizing component m and an armature 31 used in conjunction. The magnetizing component m includes a magnetic yoke 32 and a coil assembly 33 used in conjunction and fixedly assembled. The switching unit s includes at least one set of switching modules 2. The switching module 2 includes a contact system. The contact system includes a moving contact mechanism 23 and a stationary contact group used in conjunction. The moving contact mechanism 23 is movable (e.g., moved as a whole or rotated). The armature 31 is connected to the moving contact mechanism 23 in a transmission manner, driving the moving contact mechanism 23 to move and close and open with the stationary contact group (that is, to make the switching device close and open). The coil assembly 33 usually includes a coil frame and an electromagnetic coil wound on the coil frame. This is prior art in this field and will not be described in detail here.

[0037] Furthermore, the switching device of this utility model also includes a reset member 5; when the magnetizing component m is energized, it generates a magnetic field, and the armature 31 is attracted by the magnetic yoke 32, and the armature 31 moves to be attracted together with it; when the magnetizing component is de-energized, the magnetic field disappears, and the reset member 5 drives the armature 31 to separate from the magnetic yoke 32.

[0038] In another embodiment, the switching device of this utility model does not provide a reset member 5, but instead provides two sets of magnetic generating components m, namely a first magnetic generating component and a second magnetic generating component. When the first magnetic generating component m is energized and the second magnetic generating component is de-energized, the first magnetic generating component generates a magnetic field, and the magnetic yoke 32 of the first magnetic generating component attracts the armature 31, causing the armature 31 to move and engage with the magnetic yoke 32 of the first magnetic generating component. When the first magnetic generating component m is de-energized and the second magnetic generating component is energized, the second magnetic generating component generates a magnetic field, and the magnetic yoke 32 of the second magnetic generating component attracts the armature 31, causing the armature 31 to move and engage with the second magnetic generating component 32. One of the first and second magnetic generating components is always energized while the other is de-energized, thereby enabling the armature 31 to drive the moving contact mechanism 23 to close and open with the stationary contact group. Furthermore, the two sets of magnetic generating components m are arranged opposite to each other, and the armature 31 is oscillating or moving as a whole between the two sets of magnetic generating components m.

[0039] like Figure 2As shown, the switching device of this utility model also includes a control system 8, which is connected to the electromagnetic system 3 and controls the operation of the electromagnetic system 3. Furthermore, the control system 8 is also connected to a host computer (which can be a computer or other intelligent device for remote control—such as a mobile phone, tablet computer, etc.). Specifically, the control system 8 includes a control circuit board disposed within the housing 1; the coil terminals of the coil assembly 33 of the electromagnetic system 3 are connected to the control system 8.

[0040] like Figure 1-4 As shown, the switching device of this utility model also includes a housing structure, which includes an outer shell 1, and the electromagnetic system 3 and the switching unit s are both housed within the outer shell 1. Furthermore, the control system 8 is also housed within the outer shell 1.

[0041] like Figure 2-6 As shown in Figure 8, the switching device of this utility model also includes an operating system. The operating system includes an operating device and at least one set of moving contact mechanisms 23 of the switching module 2. The operating device includes an electromagnetic system 3, and the armature 31 of the electromagnetic system 3 is pulsatorically connected to the moving contact mechanism 23. Furthermore, the operating device also includes a transmission structure 4, through which the armature 31 is pulsatorically connected to the moving contact mechanism 23 and driven to move.

[0042] like Figure 2-6 The image shows a first embodiment of the operating system.

[0043] In the operating system of the first embodiment, the moving contact mechanism 23 is rotatably configured with its rotation axis parallel to the second direction d2. The moving contact mechanism 23 is driven by the armature 31 to rotate so as to close and open with the stationary contact group.

[0044] like Figure 3-6 As shown, the armature 31 is moved as a whole along the axial direction of the coil assembly 33. The direction of movement of the armature 31 is perpendicular to the second direction d2 and the same as the axial direction of the coil assembly 33. The armature 31 moves back and forth as a whole, driving the moving contact mechanism 23 to rotate back and forth, thereby closing and opening with the stationary contact group. The first embodiment of the operating system includes an electromagnetic system 3, a transmission structure 4, and a moving contact mechanism 23. The structure is simple, and the moving contact mechanism 23 is driven to rotate by the armature 31, which is moved as a whole. The operation is simple and reliable, which helps to simplify the transmission structure between the electromagnetic system 3 and the moving contact mechanism 23.

[0045] In the operating system of the first embodiment, the armature 31 is preferably moved as a whole along the third direction d3, that is, the axial direction of the coil assembly 33 is the same as the third direction d3, and the second direction d2 is perpendicular to the third direction d3. Further, the moving contact mechanism 23 and the magnetizing assembly m are arranged side by side along the third direction d3; the armature 31 moves between the moving contact mechanism 23 and the magnetizing assembly m along the third direction d3, that is, the projection of the operating system perpendicular to the second direction d2 and parallel to the third direction d3 is the first projection of the operating system, the moving contact mechanism 23 and the magnetizing assembly m are respectively located at the two ends of the first projection of the operating system, and during the movement of the armature 31, the whole is always between the two boundaries of the first projection of the operating system on the third direction d3.

[0046] In other embodiments, the axial direction of the electromagnetic coil 33 is the same as that of the first direction d1, and the armature 31 is moved as a whole along the first direction d1; the magnetizing component m can be arranged side by side with the moving contact mechanism 23 along the second direction d2, or it can be arranged side by side with the first direction d1.

[0047] It should be noted that the axial direction of the coil assembly 33 is perpendicular to the second direction d2. That is, on the projection of the operating system of the first embodiment perpendicular to the second direction d2, the angle between the axial direction of the coil assembly 33 and the third direction d3 can be any angle (0-360°).

[0048] The relative positional relationship between the electromagnetic system 3 and the moving contact mechanism 23 of the operating system of the first embodiment can be adjusted according to actual needs, so that the operating system of the first embodiment can be applied to different application environments.

[0049] Specifically, such as Figure 5-6As shown, the armature 31 has a T-shaped structure and includes an armature vertical arm 31-0 and an armature horizontal arm 31-1. One end of the armature vertical arm 31-0 is connected to the middle of the armature horizontal arm 31-1, and the other end is used to be movably inserted into the middle of the coil assembly 33 along the axial direction (i.e., the third direction d3). The armature horizontal arm 31-1 is located between the moving contact mechanism 23 and the magnetic yoke 32 in the third direction d3. The magnetic yoke 32 includes magnetic yoke hands 32-2, and the two magnetic yoke hands 32-2 are respectively connected to the two ends of the armature horizontal arm 31-1. The two magnetic yokes 32-2 are positioned relative to each other along a third direction d3 (i.e., the armature horizontal arm 31-1 moves along the third direction d3 to engage and disengage with the magnetic yoke 32-2). The two magnetic yokes 32-2 are arranged on one axial side of the coil assembly 33 and are spaced apart to form a first channel. The free end of the armature vertical arm 31-0 (i.e., the end of the armature vertical arm 31-0 away from the armature horizontal arm 31-1) passes through the first channel and is inserted into the middle of the coil assembly 33. The armature horizontal arm 31-1 and the moving contact mechanism 23 are located on the same axial side of the coil assembly 33. Furthermore, the two magnetic yokes 32-2 are arranged relative to each other along a first direction d1, and the armature horizontal arm 31-1 extends along the first direction d1. The first direction d1, the second direction d2, and the third direction d3 are perpendicular to each other in three-dimensional space. Furthermore, the magnetic yoke 32 also includes a magnetic yoke back plate 32-0 and magnetic yoke arms 32-1. Each end of the magnetic yoke back plate 32-0 is bent and connected to one end of a magnetic yoke arm 32-1. The other ends of the two magnetic yoke arms 31-1 are bent and connected to one end of a magnetic yoke hand 32-2. The other ends of the two magnetic yoke hands 32-2 are arranged relatively apart (relatively apart along the first direction d1) to form a first channel. The two magnetic yoke hands 32-2 and the magnetic yoke back plate 32-0 are respectively located on both sides of the axial direction of the coil assembly 33, and the two magnetic yoke arms 32-1 are respectively located on both sides of the radial direction of the coil assembly 33. The magnetic yoke 32 has a square frame structure and is arranged around the coil assembly 33. The yoke 32 can also be selectively equipped with a yoke intermediate arm (i.e., the yoke 32 may or may not have a yoke intermediate arm). One end of the yoke intermediate arm is connected to the middle of the yoke back plate 32-0, and the other end is inserted into the middle of the coil assembly 33 for relative engagement with the free end of the armature vertical arm 31-0. This improves the reliability of the engagement between the armature 31 and the yoke 32 when they are attracted together. When the yoke 32 is not equipped with a yoke intermediate arm, when the armature horizontal arm 31-1 is attracted to the two yoke hands 32-2, the free end of the armature vertical arm 31-0 can also be attracted to the yoke back plate 32-0 simultaneously, thereby improving the reliability of the engagement between the armature 31 and the yoke 32.

[0050] It should be noted that the layout of the armature 31, the magnetizing component m, and the moving contact mechanism 23 is not limited to the above-described manner. For example, the two yoke arms 32-2 of the yoke 32 can also be arranged side by side along the second direction d2, and the extension direction of the armature cross arm 31-1 of the armature 31 can be adjusted accordingly; or, the armature cross arm 31-1 of the armature 31 and the moving contact mechanism 23 can also be arranged on both sides of the axial direction of the magnetizing component m, and the yoke back plate 32-0 and the moving contact mechanism 23 are located on the same side of the axial direction of the coil assembly 33.

[0051] In other embodiments, both the yoke 32 and the armature 31 are E-shaped structures. The yoke 32 includes a yoke cross plate, a yoke middle leg, and yoke side legs. Two yoke side legs are located on both sides of the yoke middle leg. One end of the yoke side legs and the yoke middle leg is connected to the yoke cross plate. The armature 31 includes an armature cross plate, an armature middle leg, and armature side legs. Two armature side legs are located on both sides of the yoke middle leg. One end of the armature side legs and the armature middle leg is connected to the armature cross plate. The yoke cross plate and the armature cross plate are located on both axial sides of the coil assembly 33. The yoke middle leg and the armature middle leg are inserted into the coil assembly 33 from both axial sides and along the axial direction of the coil assembly 33. The free ends of the yoke middle leg and the armature middle leg are matched relative to each other. Two yoke side legs are located on both radial sides of the coil assembly 33. Two armature side legs are located on both radial sides of the coil assembly 33. The free ends of the armature side legs are matched relative to the corresponding yoke side legs.

[0052] Furthermore, such as Figure 3-4 As shown, the transmission structure 4 and the moving contact mechanism 23 are arranged side by side along the second direction d2. That is, the entire transmission structure 4 is arranged side by side with the switch module 2 along the second direction d2, or at least a part of the transmission structure 4 is arranged side by side with the switch module 2 along the second direction d2. In this embodiment, a part of the transmission structure 4 is arranged side by side with the moving contact mechanism 23 along the second direction d2. That is, on the projection of the operating system of the first embodiment perpendicular to the second direction d2, a part of the transmission structure 4 overlaps with the moving contact mechanism 23.

[0053] like Figure 3-6 As shown, the transmission structure 4 includes a linkage 41, one end of which is connected to the armature 31 and the other end is directly or indirectly connected to the moving contact mechanism 23. Furthermore, the linkage 41 and the armature 31 are synchronously moved and remain relatively stationary during movement. That is, during movement, the linkage 41 will not move (or rotate) relative to the armature 31, or the linkage 41 will only move (or rotate) slightly relative to the armature 31 within the allowable assembly tolerances. This slight movement (or rotation) is negligible in the overall operation of the linkage 41.

[0054] Furthermore, the transmission structure 4 also includes a connecting rod 42, one end of which is hinged to the linkage member 41 and the other end is connected to the moving contact mechanism 23 via a linkage shaft 44. The linkage shaft 44 is inserted into the moving contact mechanism 23 and is arranged parallel to and spaced apart from the rotation axis of the moving contact mechanism 23. The end of the connecting rod 42 that is hinged to the linkage member 41 is the first end of the connecting rod, and the end that is connected to the moving contact mechanism 23 via the linkage shaft 44 is the second end of the connecting rod. During operation, as the electromagnetic system 3 drives the moving contact mechanism 23 to rotate, the first end of the connecting rod moves synchronously with the linkage member 41, and the second end of the connecting rod swings around the first end of the connecting rod and drives the moving contact mechanism 23 to rotate via the linkage shaft 44. Furthermore, the connecting rod 42 is a straight connecting rod, with a connecting rod connection hole 42-10 and a connecting rod drive hole 42-11 at each end. The connecting rod connection hole 42-10 mates with the linkage shaft 44, and the connecting rod drive hole 42-11 is used to hinge with the linkage member 41 (specifically, the linkage member drive part 41-3 of the linkage member 41, which will be described below) via the connecting shaft 43. Furthermore, one end of the connecting rod 42 has a tuning fork-shaped structure, and the linkage member drive part 41-3 of the linkage member 41 is inserted into the middle of the tuning fork-shaped structure and hinged thereto. This helps to reduce the installation space required after the linkage member 41 and the connecting rod 42 are connected, ensuring a reliable connection between the two.

[0055] The transmission structure 4 includes a linkage 41 and a connecting rod 42, which has a simple structure and a short and reliable transmission link.

[0056] In another embodiment, the transmission structure 4 does not have a connecting rod 42. The linkage 41 and the armature 31 are still synchronously moved and remain relatively stationary during the movement. Instead, the linkage 41 is directly connected to the moving contact mechanism 23 through the linkage shaft 44. Specifically, one end of the linkage 41 connected to the armature 31 is the first end of the linkage, and the other end is the second end of the linkage. The second end of the linkage is connected to the moving contact mechanism 23 through the linkage shaft 44. The second end of the linkage has an oblong hole, and the linkage shaft 44 is inserted into the oblong hole. The oblong hole has two opposing driving sides, namely a closing driving side and a disengaging driving side. During operation, when the electromagnetic system 3 drives the moving contact mechanism 23 to rotate: the closing driving side of the oblong hole presses against the linkage shaft 44, causing the moving contact mechanism 23 to rotate and close with the stationary contact group, while the linkage shaft 44 slides relative to the closing driving side; the disengaging driving side of the oblong hole presses against the linkage shaft 44, causing the moving contact mechanism 23 to rotate and disengage from the stationary contact group, while the linkage shaft 44 slides relative to the disengaging driving side. Furthermore, the armature 31 and the linkage 41 are an integral structure.

[0057] In another embodiment, the transmission structure 4 does not have a connecting rod 42. The linkage 41 is directly connected to the moving contact mechanism 23 via the linkage shaft 44 and is rotatably arranged relative to the armature 31. Specifically, one end of the linkage 41 is hinged to the armature 31 and this end is the first end of the linkage. The other end of the linkage 41 is connected to the moving contact mechanism 23 via the linkage shaft 44 and this end is the second end of the linkage. During the process of the electromagnetic system 3 driving the moving contact mechanism 23 to rotate, the first end of the linkage moves synchronously with the armature 31, and the second end of the linkage rotates around the first end of the linkage and drives the moving contact mechanism 23 to rotate via the linkage shaft 44. That is, the linkage 41 swings relative to the armature 31 while moving with the armature 31.

[0058] like Figure 3-4 As shown in Figure 6, the operating device further includes a reset member 5, which acts on the armature 31 or the linkage member 41 to drive the armature 31 to separate from the yoke 32. That is, when the magnetizing component m is energized, it generates a magnetic field, causing the armature 31 to attract the yoke 32. When the magnetizing component m is de-energized, the magnetic field disappears, and the reset member 5 is used to drive the armature 31 to separate from the yoke 32, thereby realizing the overall reciprocating movement of the armature 31 along the third direction d3. Furthermore, the linkage member 41 moves synchronously with the armature 31 and remains relatively stationary during the movement. The reset member 5 is a compression spring, one end of which is fixedly installed (for example, this end can be fixedly installed on the outer shell 1 or module shell 2-0 of the housing structure of the switching device) and the other end acts on the linkage member 41. Furthermore, the linkage 41 has a linkage cavity 412 in the middle, and the reset member 5 is disposed in the linkage cavity 412, with one end acting on the side wall of the linkage cavity 412 and the other end fixedly disposed; the reset member 5 is realized by a compression spring and disposed in the linkage cavity 412, which reduces the space requirement of the reset member 5, helps to save assembly space, improves the structural compactness of the operating system, and reduces the space required by the operating system. Furthermore, the linkage 41 also includes a positioning platform 414 (which will be described later) disposed on the side wall of the linkage cavity 412; of course, the positioning platform 414 can also be replaced by a positioning groove, with one end of the reset member 5 inserted into the positioning groove. The end of the reset member 5 that acts on the side wall of the linkage cavity 412 is sleeved on the positioning platform 414. The housing structure includes an outer shell mating part 12-3 extending into the linkage cavity 412. One end of the reset member 5 is fixedly disposed on the outer shell mating part 12-3. Specifically, the outer shell mating part 12-3 can be a protruding rib or baffle disposed in the outer shell 1. The outer shell mating part 12-3 can be disposed on the outer shell 1 or on the module shell 2-0. In this embodiment, the outer shell mating part 12-3 is preferably disposed on the outer shell 1 and is an integral structure therewith.

[0059] Furthermore, the linkage cavity 412 is disposed between the armature 31 and the drive part 41-3. Specifically, the linkage cavity 412 is disposed between the linkage driven part 41-1 and the linkage drive part 41-3 of the linkage 41, which will be described in detail later.

[0060] It should be noted that the reset element 5 is not limited to the above-mentioned compression spring. For example, the reset element 5 is a tension spring, one end of which is connected to the linkage 41 or the armature 31, and the other end is fixedly connected to the housing structure of the switching device; or, the reset element 5 is a torsion spring, with its helical part fixedly arranged, one spring arm fixedly arranged, and the other spring arm acting on the linkage 41 or the armature 31; the reset element 5 can also be implemented using other existing technologies, as long as it can reliably reset the armature 31, which will not be listed here.

[0061] like Figure 3-6 As shown, one implementation of the linkage 41 is as follows: the linkage 41 includes a linkage driven part 41-1, a linkage transmission part 41-2, and a linkage driving part 41-3 connected in sequence; the linkage driven part 41-1 is used to be connected to the armature 31 for transmission, and the linkage driving part 41-3 is used to be directly or indirectly connected to the moving contact mechanism 23 for transmission (for example, the linkage driving part 41-3 can be connected to the moving contact mechanism 23 through the connecting rod 42, specifically, the linkage driving part 41-3 and one end of the connecting rod 42 are hinged through the connecting shaft 43 and the other end of the connecting rod 42 is connected to the moving contact mechanism 23 through the linkage shaft 44; or, the linkage driving part 41-3 is directly connected to the moving contact mechanism 23 through the linkage shaft 44). The linkage transmission part 412 is provided with a linkage cavity 412 in the middle for accommodating the reset part 5. Furthermore, the driven part 41 of the linkage includes two driven part connecting arms 41-11, which are arranged at intervals and one end is connected to the transmission part 41-2 of the linkage. The two driven part connecting arms 41-11 are respectively locked on both sides of the armature 31. The fixed shaft 40 of the transmission structure 4 passes through the driven part connecting arms 41-11 and the armature 31 to connect the driven part connecting arms 41-11 and the armature 31 together. Furthermore, the driven part 41-1, the transmission part 41-2, and the driving part 41-3 of the linkage are connected end to end in sequence along the moving direction of the linkage 41 (that is, the moving direction of the armature 31 and the third direction d3), which has a simple structure and requires little space during operation.

[0062] Furthermore, the driven part connecting arm 41-11 is provided with a driven part connecting hole 411, and the armature 31 is provided with an armature connecting hole 310. The driven part connecting hole 411 and the armature connecting hole 310 allow the fixed shaft 40 to pass through, thereby connecting the driven part connecting part 41-11 and the armature 31 together. To achieve synchronous movement of the armature 31 and the linkage 41 while maintaining relative stillness during movement: the driven part connecting arm 41-11 and the armature 31 can be connected by multiple parallel fixed shafts 40 to restrict the rotation of the linkage 41 relative to the armature 31; or, the fixed shaft 40 is a polygonal shaft, and the driven part connecting hole 411 of the driven part connecting arm 4-11 and the armature connecting hole 310 of the armature 31 are both polygonal holes that cooperate with the polygonal shaft to restrict the rotation of the linkage 41 relative to the armature 31; or, the armature cross arm 31-1 of the armature 31 is provided with an armature positioning surface, and the linkage transmission part 41-2 includes a linkage positioning surface located between the two driven part connecting arms 41-11, with the armature positioning surface and the linkage positioning surface abutting against each other to prevent the linkage 41 from rotating relative to the armature 31.

[0063] Furthermore, the linkage transmission part 41-2 has a frame-shaped structure, with its pair of sidewalls connected to the linkage driven part 41-1 and the linkage receiving part 41-3, respectively. A positioning platform 414 is provided on the inner side of the sidewall of the linkage transmission part 41-2 connected to the linkage driving part 41-3; that is, the linkage driving part 41-3 and the positioning platform 414 are located on opposite sides of one sidewall of the linkage cavity 412. Furthermore, the free end of the driven part connecting arm 41-11 is also used for movably inserting into the middle of the coil assembly 33; preferably, the two driven part connecting arms 41-11 completely cover the armature vertical arm 31-0 of the armature 31 from both sides. Furthermore, the linkage transmission part 41-2 has a square frame-shaped structure.

[0064] Furthermore, the linkage drive part 41-3 is provided with a drive part connection hole 413, which is used to hinge with the connecting rod 42 through the connecting shaft 43.

[0065] like Figure 2 and 8As shown, the moving contact mechanism 23 includes a moving contact 23-1 and a rotatably mounted contact support 23-2. The axial direction of the rotation axis of the contact support 23-2 is the same as the second direction d2, and the moving contact 23-1 is mounted on the contact support 23-2. Further, the contact support 23-2 is provided with a contact driven hole 23-20, which is located radially on one side of the rotation axis of the contact support 23-2. The linkage shaft 44 is inserted into the contact driven hole 23-20 to drive its rotation. Furthermore, the moving contact mechanism 23 also includes a contact spring 23-3, with its two ends connected to the moving contact 23-1 and the contact support 23-2, respectively. The contact spring 23-3 enables the moving contact 23-1 to establish a first limiting engagement with the contact support 23-2, thereby driving the moving contact 23-2 to rotate synchronously with the contact support 23-2 during its rotation, thus closing and opening with the stationary contact group. When the moving contact 23-1 and the stationary contact group are in the closed state and a short-circuit current flows through the contact system, the moving contact 23-1 will rotate relative to the contact support 23-2 and disconnect from the stationary contact group. The contact spring 23-3 will lock the moving contact 23-1 in a temporary disconnected position to prevent the moving contact 23-1 from closing with the stationary contact group again. Furthermore, when the moving contact 23-1 is in the temporary disconnected position, the contact spring 23-3 causes the moving contact 23-1 to establish a second limiting engagement with the stopping structure. The stopping structure is either provided by the contact support 23-2 or by the housing structure of the switching device. In this embodiment, the stopping structure is preferably implemented by the buffer stop 25 (described later). Specifically, to achieve the above-mentioned function of the contact spring 23-3, the connection relationship between the moving contact 23-1, the contact support 23-2, and the contact spring 23-3 can be achieved using existing technology. For example, one end of the contact spring 23-3 is connected to the moving contact 23-1, and the other end is connected to the contact support 23-2. In a plane perpendicular to the rotation axis of the moving contact 23-1 and coinciding with the axis of the contact spring 23-3: when the moving contact 23-1 and the contact support 23-2 are in the first limiting engagement state, the contact spring 23-3... The axis of the contact spring 23-3 is located on one side of the rotation axis of the moving contact 23-1, and the contact spring 23-3 causes the moving contact 23-1 to tend to rotate relative to the contact support 23-2 in the first rotation direction; when the moving contact 23-1 is in the temporary disconnected position, the axis of the contact spring 23-3 is located on the other side of the rotation axis of the moving contact 23-1, and the force of the contact spring 23-3 causes the moving contact 23-1 to tend to rotate relative to the contact support 23-2 in the second rotation direction, which is opposite to the first rotation direction.

[0066] Furthermore, the contact support 23-2 is also provided with a contact connecting hole. The contact driven hole 23-20 and the contact connecting hole are arranged around the rotation axis of the contact support 23-2 along the rotation direction of the contact support 23-2. When the operating system includes multiple moving contact mechanisms 23, a connecting shaft passes through the contact connecting holes of each moving contact mechanism 23 in sequence, thereby ensuring the synchronicity of the rotation of each moving contact mechanism 23. Furthermore, the axis of the contact driven hole 23-20, the axis of the contact connecting hole, and the rotation axis of the contact support 23-2 are coplanar, and within this plane, the axis of the contact driven hole 23-20 and the axis of the contact connecting hole are respectively located on both sides of the rotation axis of the contact support 23-2.

[0067] like Figure 2 , 5 As shown in Figures 7-8, this is a first embodiment of the switch module 2, which is used in conjunction with the operating system of the first embodiment.

[0068] In the first embodiment of the switch module 2: the stationary contact group includes a first stationary contact 21 and a second stationary contact 22 arranged around the moving contact mechanism 23 along the rotation direction of the moving contact mechanism 23; in the moving contact mechanism 23, the moving contact 23-1 includes a moving contact bridge 23-10 and two moving contacts arranged at both ends of the moving contact bridge 23-10. The moving contact mechanism 23 rotates so that the two moving contacts close and open with the first stationary contact 21 and the second stationary contact 22 respectively (specifically, the moving contact mechanism 23 rotates so that the two moving contacts close and open with the first stationary contact 21c of the first stationary contact 21 and the second stationary contact 22c of the second stationary contact 22 respectively).

[0069] like Figure 2 and 8As shown, the first stationary contact 21 includes a first wiring portion 21-2; the second stationary contact 22 includes a second bearing portion 22-1, a second transition portion 22-3, a second connecting portion 22-2, a sampling portion 22-4, and a second wiring portion 22-0 connected in sequence. The second bearing portion 22-1 is provided with a second stationary contact point 22c. The second bearing portion 22-1, the second transition portion 22-3, and the second connecting portion 22-2 are in a U-shaped structure. The first wiring portion 21-2 and the second wiring portion 22-0 are respectively used to electrically connect to two sets of external wires (one set of external wires is used to carry the current flowing into the switch module 2, and the other set of external wires is used to carry the current flowing out of the switch module 2). The sides of both that are used to contact the external wires face the same direction, which is convenient for operators to wire and facilitates the installation layout of the switch module 2. Furthermore, the first stationary contact 21 has an overall U-shaped structure and also includes a first supporting portion 21-1 and a first transition portion 21-3. The first supporting portion 21-1, the first transition portion 21-3, and the first wiring portion 21-2 are connected in sequence, and the first supporting portion 21-1 and the first wiring portion 21-2 are arranged at intervals relative to each other. Furthermore, the planes where the first wiring portion 21-2 and the second connecting portion 22-1 are located are parallel to the rotation axis of the moving contact mechanism 23 and are parallel to each other; the planes where the first supporting portion 21-1 and the second supporting portion 22-1 are located are parallel to the rotation axis of the moving contact mechanism 23 and are parallel to each other. Furthermore, the end of the first support portion 21-1 that is away from the first transition portion 21-3 is inclined away from the end of the first support portion 21-1 that is connected to the first transition portion 21-3, and the end of the second support portion 22-1 that is away from the second transition portion 22-3 is inclined away from the end of the second support portion 22-1 that is connected to the second transition portion 22-3, and the end of the second support portion 22-1 that is connected to the second transition portion 22-3 is inclined away from the second connecting portion 22-2.

[0070] like Figure 2 and 8 As shown, the first stationary contact 21 and the second stationary contact 22 are arranged side by side at intervals along the first direction d1, and the first stationary contact 21 is offset towards the second stationary contact 22 in the third direction d3. That is, a first plane and a second plane are defined, the first plane is parallel to the first direction d1, the second plane is parallel to the third direction d3, and the intersection line of the first plane and the second plane coincides with the rotation axis of the moving contact mechanism 23. The first stationary contact 21 and the second stationary contact 22 are located on both sides of the first plane and on both sides of the second plane.

[0071] like Figure 2As shown, the contact system of the switch module 2 also includes a sampling element 7 disposed on the sampling section 24. The sampling element 7 is a Hall sensor or a shunt, which facilitates sampling of the current flowing through the contact system of the switch module 2 to achieve real-time monitoring. Furthermore, the sampling element 7 is connected to the control system 8. The control system 8 can directly control the electromagnetic system 3 based on the current signal collected by the sampling element 7, or the control system 8 can transmit the current signal collected by the sampling element 7 to the host computer, and the host computer can control the electromagnetic system 3 based on the current signal.

[0072] In another embodiment, the sampling element 7 is not connected to the control system 8, the switching device is provided with a signal interface, and the sampling element 7 is connected to an external device (e.g., a host computer) through the signal interface.

[0073] Furthermore, the sampling part 22-4 and the second wiring part 22-0 are located on one side of the second bearing part 22-1 in the third direction d3, and the first stationary contact 21 is located on the other side of the second bearing part 22-1 in the third direction d3, which facilitates the installation of the sampling component 7.

[0074] Furthermore, the second connecting part 22-2, the sampling part 22-4, and the second wiring part 22-0 are generally in the form of a straight plate structure; the second bearing part 22-1, the second transition part 22-3, and the second connecting part 22-3 form a U-shaped part, and the sampling part 22-4 and the second wiring part 22-0 protrude from one side of the U-shaped part in the opening direction of the U-shaped part, which is beneficial for controlling the installation space required for the second stationary contact 22 and for facilitating the placement of the sampling component 7 on the sampling part 22-4; furthermore, the first stationary contact 21 is generally in the form of a U-shaped structure, which makes the overall structure of the stationary contact group simple and occupies less space.

[0075] Furthermore, the first wiring portion 21-2, the first bearing portion 21-1, the second bearing portion 22-1, and the second connecting portion 22-2 are arranged sequentially along the first direction d1.

[0076] like Figure 2 and 8As shown, the switch module 2 also includes two sets of arc extinguishing systems. The arc extinguishing systems are used to extinguish the arc generated when the moving contact mechanism 23 and the stationary contact group are disconnected and closed. Each set of arc extinguishing systems includes an arc extinguishing chamber 24. The arc extinguishing chamber 24 includes multiple arc extinguishing grid plates arranged side by side at intervals. The arc inlet and exhaust outlet of the arc extinguishing chamber 24 are arranged opposite each other along the third direction d3. Both ends of each arc extinguishing grid plate extend into the arc inlet and exhaust outlet of the arc extinguishing chamber 24, respectively. The two sets of arc extinguishing chambers 24 are respectively arranged on the radial sides of the moving contact mechanism 23 and are respectively the first arc extinguishing chamber and the second arc extinguishing chamber. The first stationary contact 21, the first arc extinguishing chamber, the second stationary contact 22 and the second arc extinguishing chamber are arranged around the moving contact mechanism 23 along the rotation direction of the moving contact mechanism 23. The first arc extinguishing chamber is used in conjunction with one end of the first stationary contact 21 and the moving contact 23-1, and the second arc extinguishing chamber is used in conjunction with the other end of the second stationary contact 22 and the moving contact 23-1. Furthermore, in the arc-extinguishing chamber 24, each arc-extinguishing grid plate is arranged side by side at intervals along the first direction d1.

[0077] Furthermore, each group of the arc-extinguishing system also includes a contact arc-initiating structure. This structure guides the arc generated by the opening and closing of the moving contact mechanism 23 and the stationary contact group into the arc-extinguishing chamber 24. The contact arc-initiating structure is paired one-to-one with the arc-extinguishing chamber 24. It includes a stationary arc-initiating element that mates with the stationary contact group and a moving arc-initiating portion 23-11 that mates with the moving contact 23-1. The stationary arc-initiating element and the moving arc-initiating portion 23-11 are opposite each other to form an arc-initiating channel. One end of the arc-initiating channel mates with the stationary contact group and the moving contact 23-1, and the other end mates with the arc inlet of the arc-extinguishing chamber 24. Furthermore, the arc-initiating channel is a trumpet-shaped channel, with the smaller end mates with the stationary contact group and the moving contact 23-1, and the larger end mates with the arc inlet of the arc-extinguishing chamber 24.

[0078] Specifically, the stationary arc-drawing component that cooperates with the first stationary contact 21 is the first stationary arc-drawing plate 21i, and the stationary arc-drawing component that cooperates with the second stationary contact 22 is the second stationary arc-drawing plate 22i. One end of the first stationary arc-drawing plate 21i is disposed on the first bearing portion 21-1 and the other end extends toward the first arc-extinguishing chamber. One end of the second stationary arc-drawing plate 22i is disposed on the second bearing portion 22-1 and the other end extends toward the second arc-extinguishing chamber. Each end of the moving contact 23-1 is provided with a moving arc-drawing portion 23-11. The free ends of the two moving arc-drawing portions 23-11 extend toward the first arc-extinguishing chamber and the second arc-extinguishing chamber respectively and cooperate with the first stationary arc-drawing plate 21i and the second stationary arc-drawing plate 22i respectively. Furthermore, the first static arc-starting plate 21i has a first inner end and a first outer end at its two ends. The first inner end is disposed on the first bearing portion 21-1 and contacts the side edge of the first static contact 21c. The first outer end extends to one side of the first arc-extinguishing chamber and is arranged side by side with the arc-extinguishing grid plate of the first arc-extinguishing chamber. The second static arc-starting plate 22i has a second inner end and a second outer end at its two ends. The second inner end is disposed on the second bearing portion 22-1 and contacts the side edge of the second static contact 22c. The second outer end extends to one side of the second arc-extinguishing chamber. The moving contact 23-1 is arranged sideways and parallel to the arc-extinguishing grid of the second arc-extinguishing chamber; the moving contact 23-1 includes a moving contact bridge 23-10, and a moving arc-inducing part 23-11 is provided at each end of the moving contact bridge 23-10. The moving contact 23-1 and the moving arc-inducing part 23-11 are preferably an integral structure. The moving contact 23-1 and the moving arc-inducing part 23-11 are moved synchronously. The two moving contacts of the moving contact bridge 23-10 are used in conjunction with the first stationary contact 21c of the first stationary contact 21 and the second stationary contact 22c of the second stationary contact 22. Furthermore, the moving arc-inducing part 23-11 is horn-shaped, and the two moving arc-inducing parts 23-11 are respectively the first arc-inducing part that cooperates with the first stationary arc-inducing plate 21i and the second arc-inducing part that cooperates with the second stationary arc-inducing plate 22i; when the moving contact 23-1 is in the open position, a trumpet-shaped first arc-inducing channel is formed between the first arc-inducing part and the first stationary arc-inducing plate 21i, and the large end of the first arc-inducing channel is opposite to the arc inlet of the first arc-extinguishing chamber; a trumpet-shaped second arc-inducing channel is formed between the second arc-inducing part and the second stationary arc-inducing plate 22i, and the large end of the second arc-inducing channel is opposite to the arc inlet of the second arc-extinguishing chamber.

[0079] In other embodiments, the moving arc-initiating part 23-11 can also be fixedly installed, for example, fixedly installed on the module shell 2-0. After the moving contact 23-1 is disconnected from the stationary contact group, one end of the moving arc-initiating part 23-11 is opposite to the moving contact 23-1 along the third direction d3 to initiate an arc.

[0080] Furthermore, the first arc-extinguishing chamber, the moving contact mechanism 23, and the second arc-extinguishing chamber are arranged sequentially along the third direction d3.

[0081] In other embodiments, the stationary contact group may include only one stationary contact, and one end of the moving contact 23-1 of the moving contact mechanism 23 is closed and opened with the stationary contact. Correspondingly, the switch module 2 is only provided with one arc extinguishing system to work with the stationary contact and the moving contact 23-1.

[0082] like Figure 5 , 7 As shown in Figure -8, the switch module 2 also includes a module housing 2-0, in which the contact system and the arc extinguishing system are both arranged. Further, the module housing 2-0 includes two module half-shells 2-00 that are joined together axially along the rotating shaft of the moving contact mechanism 23; that is, two module half-shells 2-00 are joined together axially along the second direction d2.

[0083] Furthermore, the module shell 2-0 also includes a module shell guide hole 2-01 disposed on its side wall. The linkage shaft 44 of the transmission structure 4 passes through the module shell guide hole 2-01 and is connected to the moving contact mechanism 23 for transmission. Furthermore, the shape of the module shell guide hole 2-01 is adapted to the moving trajectory of the linkage shaft 44. The module shell guide hole 2-01 is preferably an arc-shaped hole with its center located on the rotation axis of the moving contact mechanism 23, thereby improving the transmission reliability between the linkage shaft 44 and the moving contact mechanism 23.

[0084] Furthermore, the module shell 2-0 also includes arc-extinguishing chamber exhaust windows 2-02 disposed on its side walls. Two sets of arc-extinguishing chamber exhaust windows 2-02 are respectively disposed on a pair of side walls of the module shell 2-0, respectively cooperating with the exhaust ports of the first and second arc-extinguishing chambers (the exhaust port of the arc-extinguishing chamber 24 is disposed opposite to the arc inlet), respectively connecting the first and second arc-extinguishing chambers to the external environment. Specifically, in the module shell 2-0, the arc-extinguishing chamber exhaust window 2-02 cooperating with the first arc-extinguishing chamber is the first arc-extinguishing chamber exhaust window, and the arc-extinguishing chamber exhaust window 2-02 cooperating with the second arc-extinguishing chamber is the second arc-extinguishing chamber exhaust window.

[0085] Furthermore, the switch module 2 also includes a magnetic arc guiding structure, which includes permanent magnets 26 and magnetic conductive elements 27. The two sets of magnetic arc guiding structures are respectively matched with two sets of arc-extinguishing chambers 24. In each set of magnetic arc guiding structures, two permanent magnets 26 are arranged opposite to each other on both sides of the corresponding arc-extinguishing chamber 24 along the axial direction of the rotating shaft of the moving contact mechanism 23 (that is, the second direction d), and the polarities of the two poles of the two permanent magnets 26 are opposite. The magnetic conductive elements 27 include two magnetic conductive side plates 27-1 arranged opposite to each other and a magnetic conductive connecting plate 27-2 connecting the two magnetic conductive side plates 27-1. The two magnetic conductive side plates 27-1 are respectively arranged on both sides of the two permanent magnets 26, that is, in the second direction d2, the two permanent magnets 26 are located between the two magnetic conductive side plates 27-1. The magnetic arc guiding structure is beneficial to improving the efficiency of the electric arc entering the arc-extinguishing chamber 24, thereby improving the arc-extinguishing capability and breaking performance of the switch module 2. Furthermore, both the permanent magnet 26 and the magnetic conductive element 27 are disposed on the outside of the module shell 2-0, that is, a side wall of the module shell 2-0 is provided between the permanent magnet 26 and the corresponding arc-extinguishing chamber 24. Furthermore, the outer surface of the module shell 2-0 is provided with a recessed structure for accommodating the permanent magnet 26 and the magnetic conductive side plate 27-1, which improves the structural compactness of the switch module 2 and reduces its required installation space.

[0086] Furthermore, the switch module 2 also includes a buffer blocking part 25; when a short-circuit current flows through the contact system, the moving contact 23-1 is repelled and rotates relative to the contact support 23-2 until the moving contact 23-1 hits the buffer blocking part 25 and abuts against it, so that the moving contact 23-1 is in a temporary open position; in the subsequent process, when the contact support 23-2 (operated by an operator or automatically) rotates to the open position, the moving contact 23-1 is blocked by the buffer blocking part 25 and reset relative to the contact support 23-2. Furthermore, the switch module 2 includes two buffer blocking parts 25, which respectively cooperate with both ends of the moving contact 23-1; the buffer blocking part 25 and the module shell 2-0 are an integral structure; or, the buffer blocking part 25 and the module shell 2-0 are separate structures, with the buffer blocking part 25 fixedly mounted on the module shell 2-0.

[0087] like Figure 3-5As shown, in the first embodiment, when the operating device of the operating system and the switch module 2 are assembled, the magnetizing component m of the electromagnetic system 3 and the switch module 2 are preferably arranged side-by-side along a third direction d3. The axial direction of the coil component 33 of the magnetizing component m is the same as that of the third direction d3. The transmission structure 4 and the switch module 2 are arranged side-by-side along a second direction d2. The armature 31 is moved as a whole along the third direction d3. In other embodiments, the magnetizing component m and the switch module 2 are arranged side-by-side along a first direction d1; or, the electromagnetic system 3 and the switch module 2 are arranged side-by-side along a second direction d2. The layout of the switch module 2, the electromagnetic system 3, and the transmission structure 4 can be adjusted as needed, making it reasonable and compact. The dimensions of the switching device in various directions can be selectively optimized, allowing it to be used in a smaller space and meet the requirements of different installation spaces.

[0088] Furthermore, the armature 31 and the transmission structure 4 are located on the third direction d3 between the two ends where the distance between the magnetizing component m and the switch module 2 is the greatest. "The two ends where the distance between the magnetizing component m and the switch module 2 is the greatest" refers to the end of the magnetizing component m away from the switch module 2 on the third direction d3 and the end of the switch module 2 away from the magnetizing component m on the third direction d3. In other words, on the projection of the operating device and the switch module 2 perpendicular to the second direction d2 (that is, the axis of rotation of the moving contact mechanism 23), the switch module 2 and the magnetizing component m are located at the two ends of the projection, and when the armature 31 moves, it will not exceed the two boundaries of the projection on the third direction d3.

[0089] Furthermore, the first stationary contact 21 is positioned on the third direction d3 closer to the magnetizing component m relative to the second stationary contact 22.

[0090] Furthermore, the second arc-extinguishing chamber, the moving contact mechanism 23, the first arc-extinguishing chamber, and the magnetizing component m are arranged sequentially along the third direction d3.

[0091] like Figure 1-4 As shown, this is the first embodiment of the switching device of the present invention. The switching device of the first embodiment includes the operating system of the first embodiment and the switching module 2 of the first embodiment.

[0092] In the switching device of the first embodiment, the switching unit s includes at least two (i.e., two or more) switching modules 2, each of which is arranged side by side along the second direction d2. The moving contact mechanism 23 of each switching module 2 is coaxially rotatable with its rotation axis parallel to the second direction d2. The axial direction of the coil assembly 33 of the electromagnetic system 3 is perpendicular to the second direction d2, and the armature 31 is moved as a whole along the axial direction of the coil assembly 33. In the switching device of the first embodiment, the electromagnetic system drives the moving contact mechanism to rotate through the moving armature, making the operation simple and reliable.

[0093] In the switching device of the first embodiment, the electromagnetic system 3 and the switching unit s are preferably arranged sequentially along the third direction d3, the magnetizing component m and the switching unit s are arranged side by side along the third direction d3, the axial direction of the coil component 33 of the electromagnetic system 3 is the same as that of the third direction d3, and the armature 31 is preferably moved as a whole along the third direction d3. The switching device of the first embodiment can adjust the layout of its switching module and electromagnetic system as needed, making it reasonable and compact. The size and specifications of the switching device in various directions can be selectively optimized, enabling it to be used in a small space and meet the requirements of different installation spaces.

[0094] Furthermore, the magnetizing component m and the switching unit s are respectively arranged at both ends of the switching device in the third direction d3; the armature 31 moves between the two ends of the switching device along the third direction d3, that is, when the armature 31 moves, any part of the armature 31 will not exceed the magnetizing component m and the switching unit s in the third direction d3; in other words, in the projection of the switching device of the first embodiment perpendicular to the second direction d2, the magnetizing component m and the switching unit s are respectively located at both ends of the projection, and the armature 31 will not exceed the two boundaries of the projection in the third direction d3 when it moves.

[0095] In another embodiment, the magnetizing component m and the switching unit s are arranged side by side along the first direction d1.

[0096] In another embodiment, the electromagnetic system 3 and the switch module 2 are arranged side by side along the second direction d2.

[0097] like Figure 3 and 4 As shown, the switching device of the first embodiment includes at least one set of transmission structures 4, which are arranged side by side with each switching module 2 along the second direction d2.

[0098] Furthermore, the switching device of the first embodiment includes at least one switching module group t, each switching module group t including two switching modules 2 arranged side by side along the second direction d2, and a transmission structure 4 is provided between the two switching modules 2 of the at least one switching module group t. It should be noted that in the switching device of the first embodiment, any two adjacent switching modules 2 can form a switching module group t, and the number of switching module groups t = the number of switching modules 2 - 1. For example, the switching device has two switching modules 2 and thus has one switching module group t, the switching device has three switching modules 2 and thus has two switching module groups t, and so on. Of course, in the switching device of the first embodiment, it is also permissible to provide a transmission structure 4 between the two switching modules 2 of each switching module group t, but this will increase the structural complexity and production cost of the switching device. Furthermore, a transmission space 1-320 is provided between the two switching modules 2 of at least one of the switching module groups t, and the transmission structure 4 is disposed within the corresponding transmission space 1-320.

[0099] Specifically, in the first embodiment of the switching device, the switching unit s includes two sets of switching modules 2 and a set of transmission structures 4. The transmission structure 4 is located between the two sets of switching modules 2 in the second direction d2; that is, a transmission space 1-320 is provided between the two sets of switching modules 2, and the transmission structure 4 is accommodated in the transmission space 1-320.

[0100] like Figure 2 As shown, the control system 8 is located on the side of the electromagnetic system 3 and the switching unit s in the first direction d1; that is, in the projection of the switching device of the first embodiment perpendicular to the second direction d2, the switching unit s and the electromagnetic system 3 are arranged sequentially along the third direction d3, and the switching unit s and the magnetizing component m are arranged side by side along the third direction d3. The switching unit s and the electromagnetic system 3 are located at one end of the projection, and the control system 8 is located at the other end of the projection. The above-described layout of the control system 8, the electromagnetic system 3, and the switching unit s makes the wiring layout of the control system 8, the electromagnetic system 3, and the switching unit s simpler and more convenient; the layout of the switching unit, the electromagnetic system, and the control system is reasonable, occupies little space, and improves the overall integrity of the switching device, making it easy to install and use.

[0101] In another embodiment, the control system 8 and the switching unit s are arranged side by side along the first direction d1. Furthermore, the magnetizing component m is located on one side of the switching unit s and the control system 8 in the third direction d3; in other words, in the projection of the switching device of the first embodiment perpendicular to the first direction d1, the switching unit s and the control system 8 overlap and are located at one end of the projection, while the magnetizing component m is located at the other end of the projection.

[0102] like Figure 1-2 As shown, the operating device, switch unit s, and control system 8 are all arranged inside the housing 1. Further, the housing 1 includes a base 11 and a top cover 12 that are joined together along a first direction d1. Further, the base 11 includes mounting feet 11-1, with two sets of mounting feet 11-1 disposed at both ends of the base 11 along a third direction d3.

[0103] Furthermore, the housing structure of the switching device in the first embodiment also includes the module housing 2-0 of each switching module 2.

[0104] In another embodiment, each switch module 2 may not have a module shell 2-0, but instead has a partition plate inside the outer shell 1 to separate each switch module 2. Each partition plate and the outer shell 1 are either an integral structure or a separate structure.

[0105] Furthermore, the outer casing 1 also includes an outer casing exhaust window disposed on its side wall. The outer casing exhaust window includes a first outer casing exhaust window 12-1 and a second outer casing exhaust window 12-2. The first outer casing exhaust window 12-1 cooperates with the first exhaust window of the arc-extinguishing chamber of the switch module 2, that is, the first exhaust window of the arc-extinguishing chamber is connected to the external environment through the first outer casing exhaust window 12-1. The second outer casing exhaust window 12-2 cooperates with the second exhaust window of the arc-extinguishing chamber of the switch module 2, that is, the second exhaust window of the arc-extinguishing chamber is connected to the external environment through the second outer casing exhaust window 12-2.

[0106] Furthermore, the first exhaust window 12-1 of the outer casing is disposed on the side wall of the outer casing 1 along the third direction d3, opposite to the switch module 2 and away from the electromagnetic system 3; the second exhaust window 12-2 of the outer casing is disposed on the side wall of the outer casing 1 along the first direction d1, opposite to the switch module 2 and away from the control system 8; the layout of the first exhaust window and the second exhaust window of the outer casing facilitates the layout of the electromagnetic system and the switch module of the switching device.

[0107] In another embodiment, the first exhaust window 12-1 and the second exhaust window 12-2 of the outer casing are respectively disposed on a pair of side walls of the outer casing 1 along the third direction d3; that is, the first exhaust window 12-1 is disposed on the side wall of the outer casing 1 opposite to the switch module 2 and away from the electromagnetic system 3 along the third direction d3, and the second exhaust window 12-2 is disposed on the side wall of the outer casing 1 opposite to the electromagnetic system 3 and away from the switch module 2 along the third direction d3. It should be noted that the positions of the first exhaust window 12-1 and the second exhaust window 12-2 of the outer casing are adjusted according to the layout of the electromagnetic system 3 and the switch module 2.

[0108] Furthermore, the switching device in the first embodiment also includes a de-ionization plate 6. Gases discharged from the first and second exhaust windows of the arc-extinguishing chamber of the switching module 2 pass through the corresponding de-ionization plates 6 and then exit the switching device via the first exhaust window 12-1 and the second exhaust window 12-2 of the outer casing. Further, the de-ionization plate 6 is disposed between the corresponding outer casing exhaust window and the arc-extinguishing chamber exhaust window 2-02; or, the de-ionization plate 6 is disposed within the corresponding arc-extinguishing chamber exhaust window 2-02; or, the de-ionization plate 6 is disposed within the corresponding outer casing exhaust window.

[0109] Furthermore, the first exhaust window 12-1 of the outer casing is disposed on the first side wall of the outer casing 1. The first side wall of the outer casing is disposed opposite to the switching unit s along a third direction d3 and is disposed away from the electromagnetic system 3 relative to the switching unit s. That is, the first side wall of the outer casing, the switching unit s, and the electromagnetic system 3 are disposed sequentially along the third direction d3. The second exhaust window 12-2 of the outer casing is disposed on the second side wall of the outer casing 1. The second side wall of the outer casing is disposed opposite to the switching unit s along a first direction d2 and is disposed away from the control system 8 relative to the switching unit s. That is, the second side wall of the outer casing, the switching unit s, and the control system 8 are disposed sequentially along the first direction d1. The first side wall and the second side wall of the outer casing are bent and connected at one end.

[0110] like Figure 2 As shown, the housing 1 includes a first space 1-31 for accommodating the magnetizing component m of the electromagnetic system 3, a second space 1-32 for accommodating the switch module 2 that is closed and opened by the electromagnetic system 3, and a third space 1-33 for accommodating the control system 8 that is at least connected to the electromagnetic system 3; the "control system 8 that is at least connected to the electromagnetic system 3" means that the control system 8 is only connected to the electromagnetic system 3, or the control system 8 is connected to the electromagnetic system 3 and also connected to other structures of the switching device (e.g., the sampling component 7); the first space 1-31 and the second space 1-32 are arranged side by side along the third direction d3, and the second space 1-32 and the third space 1-33 are arranged side by side along the first direction d1.

[0111] Furthermore, the first space 1-31, the second space 1-32, and the third space 1-33 are arranged side by side along the first direction d1; that is, on the projection of the outer shell 1 perpendicular to the second direction d2, the first space 1-31 and the second space 1-32 are located at one end of the projection, and the third space 1-33 is located at the other end of the projection. The layout of the first, second, and third spaces is reasonable and compact, which is beneficial to reducing the overall size of the switching device. Specifically, the first space 1-31 and the second space 1-32 are completely or partially disposed within the upper cover 12, and the third space 1-33 is completely disposed within the base 11; on the projection of the outer shell 1 perpendicular to the first direction d1, the first space 1-31 and the third space 1-33 overlap at one end, and the second space 1-32 and the third space 1-33 overlap at the other end.

[0112] In other embodiments, the first space 1-31 and the third space 1-33 are arranged side by side with the first space 1-31 along the third direction d3; that is, on the projection of the outer shell 1 perpendicular to the first direction d1, the second space 1-32 and the third space 1-33 overlap and are located at one end of the projection, while the first space 1-31 is located at the other end of the projection; on the projection of the outer shell 1 perpendicular to the second direction d2, the second space 1-32 and the third space 1-33 are arranged side by side along the first direction d1 and are located at one end of the projection, while the first space 1-31 is located at the other end of the projection. Specifically, the first space 1-31 extends into the base 11 and the upper cover 12 at both ends in the first direction d1, respectively; the second space 1-32 is partially or completely disposed in the upper cover 12; the third space 1-33 is disposed in the base 11; on the projection of the outer shell 1 perpendicular to the second direction d2, one end of the first space 1-31 is opposite to the second space 1-32 along the third direction d3 and the other end is opposite to the third space 1-33 along the third direction d3.

[0113] Furthermore, each of the module shells 2-0 is arranged side by side along the second direction d2 within the second space 1-32.

[0114] Furthermore, the second space 1-32 also includes at least one transmission space 1-320, which is disposed between two adjacent module shells 2-0 and is used to accommodate the transmission structure 4 which is connected to the moving contact mechanism 23 of the electromagnetic system 3 and the switch module 2 respectively.

[0115] Furthermore, the module housing 2-0 and the base 11 are fitted together along the first direction d1 to form a third space 1-33, which ensures the insulation between the phases in the switching device and achieves effective isolation between high and low voltage. Furthermore, the housing structure also includes an isolation plate, which is disposed between the second space 1-32 and the third space 1-33 to separate the switch module 2 disposed in the second space 1-32 and the control system 8 disposed in the third space 1-33. The isolation plate further improves the insulation performance within the switching device. Furthermore, the isolation plate and the base 11 are detachably assembled together.

[0116] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0117] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A contact system comprising a moving contact mechanism (23) and a first stationary contact (21) and a second stationary contact (22) disposed around the moving contact mechanism (23) in the rotation direction of the moving contact mechanism (23); the first stationary contact (21) includes a first wiring portion (21-2). characterized in that The second stationary contact (22) includes a second bearing part (22-1), a second transition part (22-3), a second connecting part (22-2), a sampling part (22-4), and a second wiring part (22-0) connected in sequence. The second bearing part (22-1) is provided with a second stationary contact (22c). The second bearing part (22-1), the second transition part (22-3), and the second connecting part (22-2) are in a U-shaped structure. The planes where the first wiring part (21-2) and the second wiring part (22-0) are located are parallel to the rotation axis of the moving contact mechanism (23) and are parallel to each other. The sides of the first wiring part (21-2) and the second wiring part (22-0) used to contact the external wires face the same direction. The contact system also includes a sampling element (7) provided on the sampling part (22-4). The sampling element (7) is a Hall sensor or a shunt.

2. The contact system of claim 1, characterized in that: The first stationary contact (21) has a U-shaped structure and also includes a first bearing part (21-1) and a first transition part (21-3) that are spaced apart from the first wiring part (21-2). The first bearing part (21-1), the first transition part (21-3) and the first wiring part (21-2) are connected in sequence. The first bearing part (21-1) is provided with a first stationary contact (21c).

3. The contact system of claim 1, characterized in that: The second connecting part (22-2), the sampling part (22-4), and the second wiring part (22-0) are generally in the form of a straight plate structure; the second bearing part (22-1), the second transition part (22-3), and the second connecting part (22-2) form a U-shaped part, and the sampling part (22-4) and the second wiring part (22-0) protrude on one side of the U-shaped part in the opening direction of the U-shaped part.

4. The contact system of claim 2, characterized in that: The planes containing the first bearing part (21-1) and the second bearing part (22-1) are both parallel to the rotation axis of the moving contact mechanism (23) and are parallel to each other.

5. The contact system of claim 4, characterized in that: The end of the first support portion (21-1) away from the first transition portion (21-3) is inclined away from the first wiring portion (21-2) relative to the end of the first support portion (21-1) connected to the first transition portion (21-3); the end of the second support portion (22-1) away from the second transition portion (22-3) is inclined away from the second connecting portion (22-2) relative to the end of the second support portion (22-1) connected to the second transition portion (22-3).

6. The contact system of claim 1, wherein: The first stationary contact (21) and the second stationary contact (22) are arranged side by side at intervals along the first direction d1, and the first stationary contact (21) is offset towards the second stationary contact (22) on the third direction d3. The first direction d1 and the third direction d3 are perpendicular to each other and both are perpendicular to the rotation axis of the moving contact mechanism (23).

7. The contact system according to claim 6, characterized in that: The sampling part (22-4) and the second wiring part (22-0) are located on one side of the second bearing part (22-1) on the third direction d3, and the first stationary contact (21) is located on the other side of the second bearing part (22-1) on the third direction d3.

8. The contact system of claim 6, characterized in that: The first wiring part (21-2), the first bearing part (21-1), the second bearing part (22-1), and the second connecting part (22-2) are arranged sequentially along the first direction d1.

9. The contact system of claim 1, wherein: The contact system further includes a first stationary arc-inducing plate (21i), a second stationary arc-inducing plate (22i), and a moving arc-inducing part (23-11). One end of the first stationary arc-inducing plate (21i) is disposed on the first bearing part (21-1), and the other end is used to extend into the first arc-extinguishing chamber. One end of the second stationary arc-inducing plate (22i) is disposed on the second bearing part (22-1), and the other end is used to extend into the second arc-extinguishing chamber. The moving contact mechanism (23) has two moving contacts (23-1), each of which is provided with a moving arc-inducing part (23-11). The two moving arc-inducing parts (23-11) cooperate with the first stationary arc-inducing plate (21i) and the second stationary arc-inducing plate (22i), respectively.

10. The contact system of claim 9, characterized in that: One end of the first stationary arc-starting plate (21i) disposed on the first bearing part (21-1) is in contact with the first stationary contact (21c). The end of the first stationary arc-starting plate (21i) extending toward the first arc-extinguishing chamber is located on one side of the first arc-extinguishing chamber and is arranged side by side with the arc-extinguishing grid of the first arc-extinguishing chamber. One end of the second stationary arc-starting plate (22i) disposed on the second bearing part (22-1) is in contact with the second stationary contact (22c). The end of the second stationary arc-starting plate (22i) extending toward the second arc-extinguishing chamber is located on one side of the second arc-extinguishing chamber and is arranged side by side with the arc-extinguishing grid of the second arc-extinguishing chamber.

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