Switching device

Abstract

This utility model relates to the field of low-voltage electrical appliances, specifically to a switching device. Its switching unit includes at least two sets of switching modules arranged side-by-side along a second direction d2. Each switching module includes a moving contact mechanism and a stationary contact group. The first and second stationary contacts of the stationary contact group are arranged side-by-side along a third direction d3. Each moving contact mechanism is movable as a whole along a first direction d1. Its electromagnetic system includes a magnetizing component and an armature arranged sequentially with the switching unit along the third direction d3. The magnetizing component includes a yoke and a coil assembly. The armature drives each moving contact mechanism to move as a whole, thereby closing and opening with the corresponding stationary contact group. The first direction d1, the second direction d2, and the third direction d3 are perpendicular to each other. The switching device has a reasonable layout and compact structure.

Description

Technical Field

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

[0002] An existing type of switching device (especially a circuit breaker) includes an electromagnetic system and a switching unit. The switching unit includes a switching module, which in turn includes a contact system. The electromagnetic system drives the moving contact mechanism of the contact system to move as a whole through a transmission structure, thereby closing and opening the contact system. Due to the layout of the electromagnetic system and the contact system, this type of switching device has a large size in all directions, making it inconvenient to use in a small space. In addition, the switching device also includes a reset component for separating the armature and yoke of the electromagnetic system. The reset component often occupies a large space, affecting the compactness of the overall structure of the switching device. Furthermore, the switching device also includes a control system, which is connected to the electromagnetic system to drive its operation. The control system is often implemented externally, resulting in a dispersed and non-compact overall structure. Summary of the Invention

[0003] The purpose of this utility model is to overcome at least one defect of the prior art and provide a switching device with a reasonable layout and compact structure.

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

[0005] A switching device includes an electromagnetic system and a switching unit; the switching unit includes at least two sets of switching modules, each switching module including a moving contact mechanism and a stationary contact group for cooperative use, the stationary contact group including a first stationary contact and a second stationary contact arranged side by side along a third direction d3; the electromagnetic system includes a magnetizing component and an armature for cooperative use, the magnetizing component including a magnetic yoke and a coil assembly, the armature being drively connected to each moving contact mechanism, driving each moving contact mechanism to move as a whole to close and open with the corresponding stationary contact group;

[0006] Each of the switch modules is arranged side by side along the second direction d2, and each moving contact mechanism is moved as a whole along the first direction d1; the magnetizing component and the switch unit are arranged sequentially along the third direction d3; the first direction d1, the second direction d2 and the third direction d3 are perpendicular to each other.

[0007] Furthermore, the axial direction of the coil assembly is the same as that of the third direction d3, and the armature is moved as a whole along the third direction d3.

[0008] Furthermore, the magnetizing component and the switching unit are respectively arranged at both ends of the switching device in the third direction d3; the armature moves between the two ends of the switching device along the third direction d3.

[0009] Furthermore, the switching device also includes at least one set of transmission structures, the armature being connected to each moving contact mechanism via the transmission structures, and the transmission structures and each switching module being arranged side by side along the second direction d2.

[0010] Furthermore, the switching unit includes at least one switching module group, each switching module group including two switching modules arranged side by side along the second direction d2, and a transmission structure is provided between the two switching modules of at least one switching module group.

[0011] Furthermore, the switching device includes two sets of switching modules and a transmission structure, with the transmission structure located between the two sets of switching modules in the second direction d2.

[0012] Furthermore, the transmission structure includes a linkage component, one end of which is connected to the armature and the other end of which is used for direct or indirect transmission connection with each moving contact mechanism; the switching device also includes a reset component for driving the armature to separate from the yoke, the reset component acting on the armature or the linkage component.

[0013] Furthermore, the linkage and armature are synchronously moved along the third direction d3 and remain relatively stationary during the movement.

[0014] Furthermore, the transmission structure also includes a connecting rod, which is rotatably arranged around the first axis o, hinged to the linkage member through the connecting shaft, and connected to the moving contact mechanism through the linkage shaft. Both the first axis o and the linkage shaft are parallel to the second direction d2.

[0015] Furthermore, the reset component acts on the linkage component, driving the armature to separate from the yoke through the linkage component.

[0016] Furthermore, the linkage also includes a linkage cavity disposed in its middle, and a reset member is a compression spring disposed in the linkage cavity. One end of the reset member acts on the side wall of the linkage cavity and the other end acts on the housing structure of the switching device.

[0017] Furthermore, the switching device also includes a control system, and the coil assembly is connected to the control system; the control system and the switching unit are arranged side by side along the first direction d1.

[0018] Furthermore, the magnetizing component is located on the third direction d3, on the side of the switching unit and the control system.

[0019] Furthermore, the switching device also includes a housing, in which the electromagnetic system, the switching unit, and the control system are all arranged. The housing includes a base and a top cover that are joined together relative to each other along the first direction d1.

[0020] Furthermore, in each of the aforementioned switch modules, the stationary contact group includes a first stationary contact and a second stationary contact. The first stationary contact and the moving contact mechanism are arranged side by side at intervals along a third direction d3. The first stationary contact is positioned closer to the electromagnetic system than the second stationary contact.

[0021] Furthermore, each of the aforementioned switch modules also includes two sets of arc-extinguishing chambers. One set of arc-extinguishing chambers is the first arc-extinguishing chamber, which cooperates with one end of the first stationary contact of the stationary contact group and the moving contact of the moving contact mechanism. The other set of arc-extinguishing chambers is the second arc-extinguishing chamber, which cooperates with the other end of the second stationary contact and the moving contact of the stationary contact group. The first arc-extinguishing chamber, the moving contact mechanism, and the second arc-extinguishing chamber are arranged side by side in sequence along the third direction d3.

[0022] Furthermore, the switch module also includes a module housing, which contains a moving contact mechanism, a stationary contact group, and an arc-extinguishing chamber; the module housing also includes a buffer chamber, with two buffer chambers respectively connected to two arc-extinguishing chambers, and each buffer chamber and its corresponding arc-extinguishing chamber are arranged side by side along the first direction d1; the module housing also includes a buffer chamber exhaust window on its side wall, with each buffer chamber connected to the external environment through a set of buffer chamber exhaust windows.

[0023] Furthermore, the two buffer chambers are located on both sides of the moving contact mechanism in the third direction d3; the two sets of buffer chamber exhaust windows are respectively set on the side walls at both ends of the module shell in the third direction d3, and are respectively connected to the two buffer chambers.

[0024] Furthermore, the contact system is disposed in the middle of the module shell in the third direction d3, forming two sub-spaces on both sides of the contact system; the module shell also includes partitions, the two partitions are respectively located in the two sub-spaces, each partition divides the corresponding sub-space into an arc-extinguishing chamber mounting cavity and a buffer chamber arranged side by side along the first direction d1, and each arc-extinguishing chamber is disposed in the corresponding arc-extinguishing chamber mounting cavity.

[0025] The switching device of this utility model has a reasonable and compact layout of its switching module and electromagnetic system, and optimizes the size and specifications of the switching device in all directions, so that it can be used in a small space.

[0026] In addition, the reset component is located inside the linkage cavity of the linkage component, which reduces the space requirement of the reset component and improves the overall compactness of the switching device.

[0027] Furthermore, the switch unit, electromagnetic system, and control system are rationally laid out, occupy little space, and improve the overall integrity of the switch device.

[0028] Furthermore, the transmission structure includes a linkage and a connecting rod, which is simple in structure and has a short and reliable transmission link.

[0029] In addition, the buffer chamber of the switch module plays an effective buffering role, preventing the high temperature and high pressure gas generated when the moving contact mechanism and the stationary contact group break from rupturing the switch module. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the switching device of this utility model;

[0031] Figure 2 This is a three-dimensional structural diagram of the switch device of this utility model without the top cover;

[0032] Figure 3 This is a top projection view of the switch device of this utility model without the top cover;

[0033] Figure 4 This is a three-dimensional structural diagram of the operating device and switch module of this utility model in the assembled state;

[0034] Figure 5 This is a side projection view of the operating device of this utility model;

[0035] Figure 6 This is a schematic diagram of the operating device of this utility model;

[0036] Figure 7 This is a three-dimensional structural diagram of the switch module of this utility model;

[0037] Figure 8 This is a three-dimensional structural diagram of the switch module of this utility model with one module half-shell removed;

[0038] Figure 9 This is a side projection view of the switch module of this utility model with one half-shell removed.

[0039] Explanation of reference numerals in the attached figures

[0040] 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;

[0041] Switch unit s, switch module group t, switch module 2, module shell 2-0, module half shell 2-00, module shell guide hole 2-01, arc extinguishing chamber exhaust window 2-02, buffer chamber exhaust window 2-03, partition 2-04, limit stop 2-05, 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, second transition part 22-3, second bearing part 22-1, second stationary 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, arc-extinguishing chamber 24, magnetic conductor 27, magnetic conductor side plate 27-1, magnetic conductor connecting plate 27-2, gas generating part 28;

[0042] 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.

[0043] 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;

[0044] Reset component 5;

[0045] Eliminate free plate 6;

[0046] Sample 7. Detailed Implementation

[0047] 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.

[0048] like Figure 1-3As shown, 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, which 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.

[0049] 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.

[0050] 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.

[0051] The switching device of this utility model also includes a control system (not shown in the accompanying drawings), which is connected to the electromagnetic system 3 and controls the operation of the electromagnetic system 3. Furthermore, the control system 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 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.

[0052] like Figure 1 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 all housed within the outer shell 1. Furthermore, the control system is also housed within the outer shell 1.

[0053] like Figure 2-4 As shown, the switching device of this utility model also includes an operating system, which 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.

[0054] like Figure 3-6 The image shows an embodiment of the operating system.

[0055] In the operating system of this embodiment, the moving contact mechanism 23 is moved as a whole along the first direction d1. The moving contact mechanism 23 includes a moving contact 23-1, with a moving contact point at each end of the moving contact 23-1. The two moving contacts are arranged side by side along the third direction d3, and the first direction d1 and the third direction d3 are perpendicular to each other. The armature 31 is actuated to drive the moving contact mechanism 23 to reciprocate along the first direction d1, so that it closes and opens with the stationary contact group. Furthermore, the armature 31 is moved as a whole along the axial direction of the coil assembly 33, that is, the armature 31 reciprocates along the axial direction of the coil assembly 33, which drives the moving contact mechanism 23 to reciprocate along the first direction d1, so that it closes and opens with the stationary contact group. Furthermore, the armature 31 moves along the third direction d3 between the moving contact mechanism 23 and the magnetizing component m. That is, the projection of the operating system parallel to the first direction d1 and the third direction d3 (that is, the projection of the operating system perpendicular to the second direction d2—which will be explained later) is the first projection of the operating system. The moving contact mechanism 23 and the magnetizing component m are located at the two ends of the first projection of the operating system, respectively. During the movement of the armature 31, the whole is always between the two boundaries of the first projection of the operating system in the third direction d3.

[0056] Specifically, the axial direction of the coil assembly 33 is the same as the third direction d3, that is, the axial direction of the coil assembly 33 is perpendicular to the first direction d1. Further, the magnetizing assembly m and the moving contact mechanism 23 are arranged side-by-side along the third direction d3, and the axial direction of the coil assembly 33 is the same as the third direction d3; or, the magnetizing assembly m and the moving contact mechanism 23 are arranged side-by-side along the second direction d2, and the axial direction of the coil assembly 33 is the same as the third direction d3. Further, as... Figure 4-5As 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.

[0057] 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.

[0058] 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.

[0059] 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 first projection of the operating system, a part of the transmission structure 4 overlaps with the moving contact mechanism 23.

[0060] like Figure 3-5 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.

[0061] Furthermore, the armature 31 and the linkage 41 are either an integral or separate structure; in the operating system of this embodiment, the armature 31 and the linkage 41 are preferably separate structures, which helps to reduce production difficulty and facilitates assembly operations. Furthermore, the linkage 41 includes a linkage driven part 41-1 for connecting with the armature 31 (which will be described later).

[0062] like Figure 4-5 As shown, the transmission structure 4 also includes a connecting rod 42. One end of the linkage 41 of the transmission structure 4 is connected to the armature 31 and the other end is hinged to the connecting rod 42 of the transmission structure 4. The connecting rod 42 is rotatably arranged around the first axis o, which is parallel to the second direction d2. The connecting rod 42 is also connected to the moving contact mechanism 23 through the linkage shaft 44. The axis of the linkage shaft 44 is perpendicular to the moving direction of the moving contact mechanism 23. During operation, the armature 31 drives the linkage 41 to reciprocate along the third direction d3. The linkage 41 drives the connecting rod 42 to reciprocate around the first axis o. The connecting rod 42 drives the moving contact mechanism 23 to move up and down along the first direction d1 to close and open with the stationary contact group. Furthermore, the hinge point between the linkage 41 and the connecting rod 42, the first axis o, and the connection point between the connecting rod 42 and the linkage shaft 44, on the projection of the operating system parallel to the first direction d1 and the third direction d2 (that is, the projection of the operating system perpendicular to the second direction d2), are respectively located at the three vertices of a triangle, which is the first triangle. Further, the first triangle is an acute triangle, preferably an approximately equilateral triangle. Further, the linkage 41 is hinged to the connecting rod 42 via the connecting shaft 43, and the connecting rod 42 is rotatably mounted around the first axis o via the connecting rod pivot 45. The connecting rod pivot 45 is preferably mounted on the outer shell 1 or module shell 2-0 of the housing structure of the switching device. The connecting rod 42 is drively connected to the moving contact mechanism 23 via the linkage shaft 44. Further, the linkage 41 also includes a linkage drive part 41-3 for hinged to the connecting rod 42 (described later).

[0063] 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.

[0064] Specifically, such as Figure 5-6As shown, the connecting rod 42 includes a connecting rod connecting hole 42-10, a connecting rod driving hole 41-11, and a connecting rod shaft hole 42-12. These three holes are respectively located at the three vertices of the first triangle. Both the connecting rod connecting hole 42-10 and the connecting rod driving hole 42-11 are oblong holes. The connecting rod shaft hole 42-12 is a round hole adapted to the connecting rod shaft 45. The connecting shaft 43 is inserted into the connecting rod connecting hole 42-10, the linkage shaft 44 is inserted into the connecting rod driving hole 42-11, and the connecting rod shaft 45 is inserted into the connecting rod shaft hole 42-12. Within 2-12; the drive unit connecting hole 413 (described later) of the linkage member drive part 41-3 of the linkage member 41 is a round hole adapted to the connecting shaft 43; during operation, the linkage member 41 drives the connecting rod 42 to rotate around the connecting rod shaft 45 through the connecting shaft 43, and the connecting rod 42 drives the moving contact mechanism 23 to move along the first direction d1 through the linkage shaft 44. During the rotation of the connecting rod 42, the connecting shaft 43 and the linkage member 41 remain relatively stationary, the connecting rod connecting hole 42-10 moves relatively with the connecting shaft 43, and the connecting rod drive hole 42-11 moves relatively with the linkage shaft 44. Furthermore, the connecting rod shaft 45 and the connecting rod 42 are either an integral or separate structure.

[0065] In another embodiment, the drive connection hole 413 of the linkage drive part 41-3 of the linkage 41 is an oblong hole, and the connecting rod connection hole 42-10 of the connecting rod 42 is a round hole adapted to the connecting shaft 43; when the connecting rod 42 rotates, the connecting shaft 43 rotates with the connecting rod 42 around the connecting rod pivot 45 and moves relative to the linkage connection hole 413.

[0066] In another embodiment, the transmission structure 4 does not have a connecting rod 42, and the drive part connection hole 413 of the linkage 41 is an oblong hole with two driving sides arranged opposite to each other (a closing driving side and a opening driving side, the two driving sides being inclined relative to the third direction d3). During operation, the armature 31 drives the linkage 41 to move along the third direction d3. The closing driving side drives the linkage shaft 44 to move along the first direction d1, causing it to drive the moving contact mechanism 23 to move along the first direction d1 and close with the stationary contact group. The opening driving side drives the linkage shaft 44 to move along the first direction d1, causing it to drive the moving contact mechanism 23 to move and disconnect from the stationary contact group.

[0067] In another embodiment, the linkage 41 is rotatably arranged relative to the armature 31 around the fixed shaft 40, and the linkage 41 and the connecting rod 42 can only rotate relative to each other around the connecting shaft 43. During operation, the armature 31 drives the linkage 41 to move along the third direction d3. While the linkage 41 drives the connecting rod 42 to rotate, it also rotates relative to the armature 31 around the fixed shaft 40. The connecting rod 42 drives the moving contact mechanism 23 to move along the first direction d1.

[0068] In another embodiment, the transmission structure 4 may omit the linkage 41 and instead only have a connecting rod 42. The armature 31 of the electromagnetic system 3 is directly connected to the connecting rod 42 via the connecting shaft 43 to drive its rotation. Further, the connecting shaft 43 and the armature 31 are synchronously movable; or, the connecting shaft 43 and the connecting rod 42 are synchronously rotated around the first axis o, and the armature 31 has a waist-shaped hole that mates with the connecting shaft 43. The connecting shaft 43 is movably inserted into this waist-shaped hole, and when the armature 31 drives the connecting rod 42 to rotate, the connecting shaft 43 and the waist-shaped hole rotate and move relative to each other. When the transmission structure 4 adopts the above implementation, the magnetizing component m and the moving contact mechanism 23 can be arranged side-by-side along a third direction d3 or along a second direction d2. The axial direction of the coil component 33 of the magnetizing component m is the same as that of the third direction d3 or the second direction d2.

[0069] It should be noted that in the operating system of this embodiment, the axial direction of the coil assembly 33 of the electromagnetic system 3 only needs to be perpendicular to the rotation axis (first axis o) of the connecting rod 42. That is, the moving direction of the armature 31 is perpendicular to the rotation axis (first axis o) of the connecting rod 42. Therefore, according to actual needs, the angle between the axial direction of the coil assembly 33 and the third direction d3 can be any value from 0 to 360°.

[0070] like Figure 4-6 The diagram illustrates one implementation of the connecting rod 42: the connecting rod 42 includes a connecting rod side plate 42-1 and a connecting rod bridge 42-2, with the two connecting rod side plates 42-1 positioned opposite each other and connected by the connecting rod bridge 42-2; each connecting rod side plate 42-1 includes a connecting rod connection hole 42-10, a connecting rod drive hole 42-11, and a connecting rod shaft hole 42-12 disposed thereon, the connecting rod connection hole 42-10, the connecting rod drive hole 42-11, and the connecting rod shaft hole 42-12 respectively arranged at the three vertices of a triangle (a first triangle), the connecting rod connection hole 42-10 and the connecting rod drive hole 42-11 are both oblong holes, and the connecting rod shaft hole 42-12 is a circular hole. Further, the connecting rod side plate 42-1 is generally a triangular plate structure (however, the connecting side plate 42-1 is not limited to the aforementioned shape, and can also be a circular plate, a square plate, or other irregular shapes). In this embodiment, when the connecting rod 42 and the linkage 41 are assembled, the linkage drive part 41-3 of the linkage 41 is inserted between the two connecting rod side plates 42-1. The connecting shaft 43 passes through the connecting rod connecting hole 42-10 and the drive part connecting hole 413 to hinge the connecting rod 42 and the linkage 41 together. This helps to reduce the overall thickness of the linkage 41 and the connecting rod 42 in the assembled state and reduce the required installation space.

[0071] In another embodiment, the connecting rod 42 can also be a flat plate structure with a certain thickness, the thickness of which is similar to the distance between the outer surfaces of the two connecting rod side plates 42-1 in this embodiment.

[0072] like Figure 3-4 As shown, the operating device also 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.

[0073] Furthermore, the linkage cavity 412 is disposed between the armature 31 and the driving part 41-3 of the linkage 41. Specifically, the linkage cavity 412 is disposed between the linkage driven part 41-1 and the linkage driving part 41-3 of the linkage 41, which will be described in detail later.

[0074] 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.

[0075] like Figure 4-6 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 41-2 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] like Figure 8-9 As shown, the moving contact mechanism 23 includes a moving contact 23-1 and a contact support 23-2. The moving contact bridge 23-1 is disposed on the contact support 23-2. The contact support 23-2 is driven to cause the moving contact 23-1 to reciprocate along the first direction d1. Further, the contact support 23-2 is provided with a contact receiving hole 23-20, and the linkage shaft 44 is inserted in the contact receiving hole 23-20 to drive the moving contact mechanism 23-2 to move.

[0080] Furthermore, the moving contact mechanism 23 also includes a contact spring (not shown in the accompanying drawings). The contact spring is a compression spring with its axial direction being the same as the first direction d1. Both ends of the contact spring are respectively engaged with the moving contact 23-1 and the contact support 23-2 (the specific engagement structure of the contact spring with the moving contact 23-1 and the contact support 23-2 can be implemented by existing technology and will not be described in detail here). When the moving contact mechanism 23 and the stationary contact group are in the closed state, the contact spring is compressed to ensure reliable contact between the moving contact 23-1 and the stationary contact group.

[0081] In another embodiment, the moving contact mechanism 23 includes two symmetrically arranged sets of contact springs. One end of each set of contact springs is directly or indirectly rotatably connected to the contact support 23-2, and this end is the outer end of the spring. The other end of each set of contact springs is directly or indirectly rotatably connected to the middle of the moving contact 23-1, and this end is the inner end of the spring. Under normal conditions, the two sets of contact springs are in the first working state and act on the moving contact 23-1 to establish a third limiting engagement with the contact support 23-2. The contact support 23-2 moves as a whole, thereby causing the moving contact 23-1 to close and open 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 be repelled and move to a temporary disconnection position relative to the contact support 23-2. At the same time, the contact spring swings around the outer end of the spring to the second working state under the drive of the moving contact 23-1. When the moving contact 23-1 is in the temporary disconnection position, it establishes a second limiting cooperation with the docking structure. The docking structure is provided by the contact support 23-2 or the housing structure of the switching device. The above technical solution can be implemented by existing technology, and its detailed structure and principle will not be described in detail here.

[0082] like Figure 4 , 7 As shown in Figure 9, this is one embodiment of the switch module 2, which is used in conjunction with the operating device.

[0083] In the switch module 2 of this embodiment, the stationary contact group includes a first stationary contact 21 and a second stationary contact 22 arranged side by side at intervals. The side-by-side direction of the first stationary contact 21 and the second stationary contact 22 is perpendicular to the moving direction of the moving contact mechanism 23. The moving contact mechanism 23 reciprocates to close and open with the first stationary contact 21 and the second stationary contact 22. Specifically, the contact system is located in the middle of the module shell 2-0 of the switch module 2 in the third direction d3. The first stationary contact 21 and the second stationary contact 22 are arranged side by side along the third direction d3. The moving contact mechanism 23 is moved as a whole along the first direction d1. The stationary contact group and the moving contact mechanism 23 are arranged side by side along the first direction d1. The first direction d1 is perpendicular to the third direction d3. The moving contact 23-1 of the moving contact mechanism 23 includes a moving contact bridge 23-10 and two moving contacts arranged at both ends of the moving contact bridge 23-10. The two moving contacts are used to close and open the first stationary contact 21c of the first stationary contact 21 and the second stationary contact 22c of the second stationary contact 22, respectively.

[0084] Furthermore, the first stationary contact 21 includes a first wiring portion 21-2 for wiring, and the second stationary contact 22 includes a second wiring portion 22-0 for wiring. The planes containing the first wiring portion 21-2 and the second wiring portion 22-0 are parallel to each other and both perpendicular to the first direction d1 (that is, the moving direction of the moving contact mechanism 23). The sides of the first wiring portion 21-2 and the second wiring portion 22-0 that are used to contact the external wire face the same side, which facilitates the installation layout of the switch module 2 and makes it easier for operators to wire the switch module 2. Furthermore, both the first stationary contact 21 and the second stationary contact 22 have a U-shaped structure. The first stationary contact 21 also includes a first support portion 21-1, a first transition portion 21-3, and a first stationary contact 21c. The first support portion 21-1, the first transition portion 21-3, and the first wiring portion 21-2 are connected in sequence, and the first support portion 21-1 and the first wiring portion 21-2 are arranged at intervals relative to each other. The first stationary contact 21c is disposed on the first support portion 21-1. The second stationary contact 22 also includes a second support portion 22-1, a second transition portion 22-3, and a second stationary contact 22c. The second support portion 22-1, the second transition portion 22-3, and the second wiring portion 22-0 are connected in sequence, and the second support portion 22-1 and the second wiring portion 22-0 are arranged at intervals relative to each other. The second stationary contact 22c is disposed on the second support portion 22-1. Furthermore, the first stationary contact 21 and the second stationary contact 22 have the same structure, which helps to reduce the number of components in the switch module 2, and there is no need to distinguish between the first stationary contact 21 and the second stationary contact 22 during assembly.

[0085] like Figure 8-9As shown, the switch module 2 includes two sets of arc-extinguishing systems. These systems extinguish the arc generated when the moving contact mechanism 23 and the stationary contact group open and close. Each arc-extinguishing system includes an arc-extinguishing chamber 24, which comprises multiple arc-extinguishing grid plates arranged side-by-side at intervals. The arc inlet and outlet of the arc-extinguishing chamber 24 are positioned opposite each other along a third direction d3. Both ends of each arc-extinguishing grid plate extend into the arc inlet and outlet of the arc-extinguishing chamber 24, respectively. The two sets of arc-extinguishing chambers 24 are respectively located on both sides of the moving contact mechanism 23 along the third direction d3 and are designated as the first and second arc-extinguishing chambers. The first arc-extinguishing chamber is used in conjunction with one end of the first stationary contact 21 and the moving contact 23-1, while 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 a first direction d1.

[0086] 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 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.

[0087] 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 stationary arc-inducing plate 21i has a first inner end and a first outer end at its two ends, respectively. The first inner end is disposed on the first bearing part 21-1 and contacts the side edge of the first stationary 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 of the first arc-extinguishing chamber. The second stationary arc-inducing plate 22i has a second inner end and a second outer end at its two ends, respectively. The second inner end is disposed on the second bearing part 22-1 and contacts the side edge of the second stationary contact 22c. The second outer end extends to 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. The moving contact 23-1 includes a moving contact bridge 23-10. Each end of the moving contact bridge 23-10 is provided with a moving arc-inducing part 23-11. One end of each moving arc-inducing part 23-11 is disposed on the end corresponding to the moving contact bridge 23-10 and contacts the side edge of the corresponding moving contact. The moving arc-inducing part 23-11 and the moving contact 23-1 are moved synchronously. Furthermore, the two moving arc-initiating parts 23-11 are respectively the first arc-initiating part that cooperates with the first stationary arc-initiating plate 21i and the second arc-initiating part that cooperates with the second stationary arc-initiating plate 22i; when the moving contact 23-1 is in the open position, a trumpet-shaped first arc-initiating channel is formed between the first arc-initiating part and the first stationary arc-initiating plate 21i, and the larger end of the first arc-initiating channel is aligned with the arc inlet of the first arc-extinguishing chamber; a trumpet-shaped second arc-initiating channel is formed between the second arc-initiating part and the second stationary arc-initiating plate 22i, and the larger end of the second arc-initiating channel is aligned with the arc inlet of the second arc-extinguishing chamber.

[0088] 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.

[0089] 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.

[0090] like Figure 4 , 7As shown in Figure -8, the switch module 2 also includes a module shell 2-0, in which the contact system and the arc extinguishing system are both arranged. Further, the module shell 2-0 includes two module half-shells 2-00 that are joined together, with the direction in which the two module half-shells 2-00 are joined perpendicular to the first direction d1 and the third direction d3, that is, the two module half-shells 2-00 are joined together along the second direction d2.

[0091] 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.

[0092] Furthermore, the arc-extinguishing system also includes buffer chambers 2-1 disposed within the module shell 2-0. Buffer chambers 2-1 are paired one-to-one with arc-extinguishing chambers 24. The two sets of buffer chambers 2-1 are respectively connected to the arc inlets of the two arc-extinguishing chambers 24. Each arc-extinguishing chamber 2-1 and its corresponding arc-extinguishing chamber 24 are arranged side-by-side along the first direction d1. That is, the two buffer chambers 2-1 are respectively the first buffer chamber and the second buffer chamber. The first buffer chamber is connected to the first arc-extinguishing chamber and arranged side-by-side along the first direction d1, and the second buffer chamber is connected to the second arc-extinguishing chamber and arranged side-by-side along the first direction d1. The module shell 2-0 also includes buffer chamber exhaust windows 2-03 disposed on its side wall. Each buffer chamber 2-1 is connected to the external environment through a set of buffer chamber exhaust windows 2-03. The connection between the buffer chamber and the corresponding arc-extinguishing chamber effectively buffers the high-temperature, high-pressure gas within the arc-extinguishing chamber, preventing the switch module from exploding and improving safety. Furthermore, the two buffer chambers 2-1 are located on both sides of the moving contact mechanism 23 in the third direction d3; the two sets of buffer chamber exhaust windows 2-03 are respectively set on the side walls at both ends of the module shell 2-0 in the third direction d3, and are respectively connected to the two buffer chambers 2-1; the buffer chamber exhaust windows 2-03 can appropriately discharge the gas in the buffer chamber 2-1, further improving the buffering capacity of the buffer chamber 2-1, thereby further improving the breaking capacity of the arc extinguishing system. Furthermore, in the switch module 2, the arc extinguishing chamber exhaust window 2-02 and the buffer chamber exhaust window 2-03, which cooperate with the same arc extinguishing system, are set on the same side wall of the module shell 2-0 and are arranged side by side at intervals along the first direction d1.

[0093] In another embodiment, the two sets of buffer chamber exhaust windows 2-03 are arranged on the same side wall of the module shell 2-0, which is arranged opposite to the moving contact mechanism 23 along the first direction d1.

[0094] In another embodiment, the module housing 2-0 does not have a buffer chamber exhaust window 2-03. The buffer chamber 2-1 can still buffer the high-temperature and high-pressure gas in the arc extinguishing chamber, preventing the switch module from exploding and improving safety.

[0095] Furthermore, after the moving contact mechanism 23 is disconnected from the stationary contact group, one end of the partition 2-04 and the corresponding moving arc-inducing part 23-11 are opposite each other along the third direction d3 to form a second channel. The arc inlet of the arc-extinguishing chamber 24 is connected to the corresponding buffer chamber 2-1 through the corresponding second channel. Specifically, the opposite ends of the two sets of partitions 2-04 are respectively matched with the two moving arc-inducing parts 23-11 along the third direction d3 to form two second channels. The arc inlets of the two arc-extinguishing chambers 24 are respectively connected to the two buffer chambers 2-1 through the two second channels. The two second channels are located on both sides of the moving contact mechanism 23 along the third direction d3. It should be noted that when the moving arc-inducing part 23-11 is fixedly installed, one end of the partition 2-04 is always positioned opposite the corresponding moving arc-inducing part 23-11 along the third direction d3 to form a second channel.

[0096] Furthermore, the module shell 2-0 includes two sets of subspaces and two sets of partitions 2-04. The two sets of subspaces are located on both sides of the contact system along the third direction d3, and the two sets of partitions 2-04 are located within the two sets of subspaces. In other words, the contact system is located in the middle of the module shell 2-0 along the third direction d3, forming two sets of subspaces on both sides of the contact system. Each partition 2-04 divides the corresponding subspace into an arc-extinguishing chamber mounting cavity 2-06 and a buffer chamber 2-1 arranged side by side along the first direction d1. Each arc-extinguishing chamber 24 is located within the corresponding arc-extinguishing chamber mounting cavity 2-06. The partition 2-04 divides the subspace into two spaces, which helps to ensure that the arc-extinguishing chamber 24 is reliably installed in the arc-extinguishing chamber mounting cavity 2-06, and also controls the rate at which gas from the arc-extinguishing chamber 24 enters the buffer chamber 2-1. Furthermore, one end of the partition 2-04 and the moving contact mechanism 23 are spaced apart along a third direction d3 to form a second channel, and the arc-extinguishing chamber 24 is connected to the corresponding buffer chamber 2-1 through the corresponding second channel. Specifically, the partition 2-04 and the module shell 2-0 are an integral structure, including half-partitions respectively disposed on the two module half-shells 2-00, and the two half-partitions are joined together to form the partition 2-04. As another embodiment, the partition 2-04 and the module shell 2-0 are a separate structure, and the inner surface of the module shell 2-0 is provided with a structure for installing 2-04, such as a slot or a baffle.

[0097] In another embodiment, the switch module 2 includes only one stationary contact group, and one end of the moving contact 23-1 of the moving contact mechanism 23 is closed and opened with the stationary contact. A set of arc extinguishing systems is provided to work in conjunction with the stationary contact and the moving contact 23-1. The corresponding module shell 2-0 is provided with a subspace for accommodating the arc extinguishing system and a partition 2-04 for dividing the subspace into an arc extinguishing chamber mounting cavity 2-06 and a buffer chamber 2-1.

[0098] It should be noted that the buffer chamber 2-1 can also be applied to a switch module 2 with a rotating moving contact mechanism 23. The rotation axis of the moving contact mechanism 23 is parallel to the second direction. The first stationary contact 21 and the second stationary contact 22 are arranged around the moving contact mechanism 23 along its rotation direction. The layout of the buffer chamber 2-1, the arc extinguishing chamber 24 and the contact system are then adapted accordingly.

[0099] Furthermore, the module housing 2-0 also includes limit stops 2-05. Two sets of limit stops 2-05 are respectively disposed on both sides of the moving contact mechanism 23 in the third direction d3. The two sets of limit stops 2-05 are slidably engaged with both sides of the moving contact mechanism 23 to limit the movement path of the moving contact mechanism 23. The limit stops reliably limit the moving contact mechanism 23, allowing it to move along a preset path and ensuring stable and reliable movement. Furthermore, the end of the partition plate 2-04 near the contact system is opposite to the middle of the corresponding limit stop 2-05. That is, after the moving contact mechanism 23 is disconnected from the stationary contact group, the limit stop 2-05 is located between the buffer chamber 2-1 and the moving contact mechanism 23, thereby preventing the arc gas in the buffer chamber 2-1 from entering the interior of the moving contact mechanism 23 and causing ablation of the internal metal components.

[0100] Furthermore, the module housing 2-0 also includes a module housing guide hole 2-01 disposed on its side wall. The linkage shaft 44 of the transmission structure 4 passes through the module housing guide hole 2-01 and is connected to the moving contact mechanism 23 for transmission. Furthermore, the shape of the module housing guide hole 2-01 is adapted to the moving trajectory of the linkage shaft 44. The module housing guide hole 2-01 is preferably an oblong hole. On the projection of the switch module 2 perpendicular to the second direction d2, the length direction of the oblong hole is the same as that of the first direction d1.

[0101] Furthermore, the module housing 2-0 also includes a connecting rod shaft insertion hole 2-06 provided on its side wall, and the connecting rod shaft 45 of the transmission structure 4 is inserted into the connecting rod shaft insertion hole 2-06.

[0102] Furthermore, the switch module 2 also includes a magnetic arc guiding structure, which includes permanent magnets and magnetic conductive elements 27. The two sets of magnetic arc guiding structures are respectively matched with the two sets of arc-extinguishing chambers 24. In each set of magnetic arc guiding structures, two permanent magnets are arranged opposite each other on both sides of the corresponding arc-extinguishing chamber 24 along the direction of relative splicing of the two module half shells 2-00 of the module shell 2-0 (that is, the second direction d), and the polarities of the two permanent magnets 26 are opposite. The magnetic conductive elements 27 include two magnetic conductive side plates 27-1 arranged opposite 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, that is, in the second direction d2, the two permanent magnets 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 and the magnetic conductive component 27 are disposed outside the module housing 2-0, that is, a side wall of the module housing 2-0 is provided between the permanent magnet and the corresponding arc-extinguishing chamber 24. Furthermore, the outer surface of the module housing 2-0 is provided with a recessed structure for accommodating the permanent magnet and the magnetic conductive side plate 27-1, which improves the structural compactness of the switch module 2 and reduces its required installation space.

[0103] like Figure 4 , 8 As shown, in the assembled state, the operating device of the operating system and the switch module 2 are arranged side by side with the magnetizing component m of the electromagnetic system 3 and the switch module 2 along the 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 the second direction d2. The armature 31 is moved as a whole along the third direction d3. It should be noted that the magnetizing component m and the switch module 2 can also be arranged side by side along the second direction d2 or along the first direction d1.

[0104] In another embodiment, the axial direction of the coil assembly 33 is the same as that of the first direction d1. The armature 31 is integrally arranged along the first direction d1. The armature 31 is connected to the moving contact mechanism 23 via a transmission lever. The transmission lever is rotatably arranged in the middle and has a first lever end and a second lever end at its two ends, respectively. The first lever end is hinged to the armature 31 and the second lever end is hinged to the moving contact mechanism 23. The first lever end is provided with an oblong hole for hinged to the armature 31, and the second lever end is provided with an oblong hole for hinged to the moving contact mechanism 23. During operation, the armature 31 drives the transmission lever to rotate, and the transmission lever simultaneously drives the moving contact mechanism 23 to move linearly. During the rotation of the transmission lever, the oblong hole at the first lever end moves relative to the armature 31, and the oblong hole at the second lever end moves relative to the moving contact mechanism 23.

[0105] 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.

[0106] Furthermore, the first stationary contact 21 is positioned relative to the second stationary contact 22 and close to the magnetizing component m on the third direction d3, that is, the second stationary contact 22, the first stationary contact 21 and the magnetizing component m are arranged sequentially along the third direction d3.

[0107] 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; the first buffer chamber, the moving contact mechanism 23, the second buffer chamber, and the magnetizing component m are arranged sequentially along the third direction d3.

[0108] Furthermore, the switching module 2 also includes gas generating components 28. The first arc-starting channel and the second arc-starting channel are respectively coupled with at least one set of gas generating components 28. The gas generating components 28 generate gas through arc ablation, accelerating the arc into the arc-extinguishing chamber 24. Furthermore, the first arc-starting channel and the corresponding gas generating component 28 are arranged side by side along the second direction d2, and the second arc-starting channel and the corresponding gas generating component 28 are also arranged side by side along the second direction d2. Furthermore, the first arc-starting channel has one set of gas generating components 28 on each side along the second direction d2; the second arc-starting channel also has one set of gas generating components 28 on each side along the second direction d2.

[0109] like Figure 1-4 As shown, this is an embodiment of the switching device of the present invention. The switching device includes an operating system and a switching module 2.

[0110] In this embodiment of the switching device, the switching unit s includes at least two (i.e., two or more) switching modules 2. Each switching module 2 is arranged side by side along the second direction d2. The moving contact mechanism 23 of each switching module 2 is arranged side by side along the second direction d2 and is movable as a whole along the first direction d1. The first stationary contact 21 and the second stationary contact 22 of each switching module 2 are arranged side by side at intervals along the third direction d3. The electromagnetic system 3 and the switching unit s are arranged sequentially along the third direction d3. The first direction d1, the second direction d2, and the third direction d3 are perpendicular to each other in three-dimensional space. Further, the axial direction of the coil assembly 33 of the electromagnetic system 3 is perpendicular to the rotation axis of the connecting rod 42, that is, the axial direction of the coil assembly 33 of the electromagnetic system 3 is perpendicular to the second direction d2. The armature 31 is movable as a whole along the axial direction of the coil assembly 33. In this embodiment of the switching device, the layout of the switching module 2 and the electromagnetic system 3 can be adjusted as needed, making it reasonable and compact. The dimensions of each direction of the switching device can be selectively optimized, so that it can be used in a small space and meet the needs of different installation spaces. Furthermore, the axial direction of the coil assembly 33 of the electromagnetic system 3 is the same as that of the third direction d3, and the armature 31 is moved as a whole along the third direction d3.

[0111] In another embodiment, the electromagnetic system 3 and the switch module 2 are arranged side by side along the second direction d2.

[0112] 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 perpendicular to the second direction d2 in this embodiment, 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.

[0113] like Figure 3 As shown, the switching device in this embodiment also 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.

[0114] Furthermore, the switching device of this 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 at least one switching module group t. It should be noted that in the switching device of this 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 this 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.

[0115] Specifically, in the switching device of this embodiment, the switching unit s includes two sets of switching modules 2 and a set of transmission structure 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.

[0116] Furthermore, the two ends of the connecting rod shaft 45 of the transmission structure 4 are respectively inserted into the connecting rod shaft insertion holes 2-06 of the two switch modules 2 adjacent to the transmission structure 4.

[0117] Furthermore, the control system 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 in this 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 is located at the other end of the projection. The above-described layout of the control system, the electromagnetic system 3, and the switching unit s makes the wiring layout of the control system, 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. Furthermore, the stationary contact group of each switching module 2, the moving contact mechanism 23 of each switching module 2, and the control system are arranged sequentially along the first direction d1.

[0118] In another embodiment, the control system and the switching unit s are arranged side by side along the first direction d1. Furthermore, the magnetizing component m is located on the same side as the switching unit s and the control system in the third direction d3; in other words, in the projection of the switching device perpendicular to the first direction d1 in this embodiment, the switching unit s overlaps with the control system and is located at one end of the projection, while the magnetizing component m is located at the other end of the projection.

[0119] like Figure 1-2 As shown, the operating device, switch unit s, and control system 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.

[0120] Furthermore, the housing structure of the switching device in this embodiment also includes the module housing 2-0 of each switching module 2.

[0121] 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.

[0122] 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.

[0123] 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; 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.

[0124] 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.

[0125] Furthermore, the switching device in this embodiment also includes an ion-eliminating plate 6. The gas discharged from the first exhaust window and the second exhaust window of the arc-extinguishing chamber of the switching module 2 passes through the corresponding ion-eliminating plates 6 and then exits the switching device through the first exhaust window 12-1 and the second exhaust window 12-2 of the outer casing. Further, the ion-eliminating plate 6 is disposed between the corresponding outer casing exhaust window and the arc-extinguishing chamber exhaust window 2-02; or, the ion-eliminating plate 6 is disposed within the corresponding arc-extinguishing chamber exhaust window 2-02; or, the ion-eliminating plate 6 is disposed within the corresponding outer casing exhaust window.

[0126] 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 relative to the switching unit s. That is, the second side wall of the outer casing, the switching unit s, and the control system 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.

[0127] like Figure 2As shown, the outer casing 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 a control system at least connected to the electromagnetic system 3. The "control system at least connected to the electromagnetic system 3" refers to a control system that is only connected to the electromagnetic system 3, or a control system that is connected to the electromagnetic system 3 and also connected to other structures of the switching device (e.g., structures for acquiring current and / or voltage signals from the contact system). The first space 1-31 and the second space 1-32 are arranged side-by-side along a third direction d3, and the second space 1-32 and the third space 1-33 are arranged side-by-side along a first direction d1. Specifically, the first space 1-31, the second space 1-32, and the third space 1-33 are arranged in a... Figure 2 The space is illustrated by the dashed lines.

[0128] 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.

[0129] 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.

[0130] Furthermore, each of the module shells 2-0 is arranged side by side along the second direction d2 within the second space 1-32.

[0131] 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.

[0132] 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 currents. Furthermore, the housing structure also includes an isolation plate, which is disposed between the second space 1-32 and the third space 1-33, separating the switch module 2 disposed in the second space 1-32 from the control system 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.

[0133] 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.

[0134] 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 switching device comprising an electromagnetic system (3) and a switching unit (s); the switching unit (s) comprises at least two sets of switching modules (2), each switching module (2) comprising a moving contact mechanism (23) and a stationary contact group for use, the stationary contact group comprising a first stationary contact (21) and a second stationary contact (22) arranged side by side along a third direction d3; the electromagnetic system (3) comprises a magnetizing component (m) and an armature (31) for use, the magnetizing component (m) comprising a yoke (32) and a coil component (33), the armature (31) being connected to each moving contact mechanism (23) in a transmission manner, driving each moving contact mechanism (23) to move as a whole to close and open with the corresponding stationary contact group; Its features are: Each of the switch modules (2) is arranged side by side along the second direction d2, and each moving contact mechanism (23) is moved as a whole along the first direction d1; the magnetizing component (m) and the switch unit (s) are arranged sequentially along the third direction d3; the first direction d1, the second direction d2 and the third direction d3 are perpendicular to each other.

2. The switching device according to claim 1, characterized in that: The axial direction of the coil assembly (33) is the same as that of the third direction d3, and the armature (31) is moved as a whole along the third direction d3.

3. The switching device according to claim 2, characterized in that: 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.

4. The switching device according to claim 2, characterized in that: The switching device also includes at least one set of transmission structures (4), the armature (31) is connected to each moving contact mechanism (23) through the transmission structure (4), and the transmission structure (4) and each switching module (2) are arranged side by side along the second direction d2.

5. The switching device according to claim 4, characterized in that: The switching unit (s) includes at least one switching module group (t), each switching module group (t) includes 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 at least one switching module group (t).

6. The switching device according to claim 5, characterized in that: The switching device includes two sets of switching modules (2) and a set of transmission structures (4), with the transmission structure (4) located between the two sets of switching modules (2) in the second direction d2.

7. The switching device according to claim 4, characterized in that: The transmission structure (4) includes a linkage (41), one end of which is connected to the armature (31) and the other end is used to be directly or indirectly connected to each moving contact mechanism (23); the switching device also includes a reset member (5) for driving the armature (31) to separate from the yoke (32), and the reset member (5) acts on the armature (31) or the linkage (41).

8. The switching device according to claim 7, characterized in that: The linkage (41) and armature (31) are moved synchronously along the third direction d3 and remain relatively stationary during the movement.

9. The switching device according to claim 8, characterized in that: The transmission structure (4) further includes a connecting rod (42), which is rotatably arranged around the first axis o, hinged to the linkage member (41) through the connecting shaft (43), and connected to the moving contact mechanism (23) through the linkage shaft (44). The first axis o and the linkage shaft (44) are both parallel to the second direction d2.

10. The switching device according to claim 7, characterized in that: The reset component (5) acts on the linkage component (41), and the linkage component (41) drives the armature (31) to separate from the yoke (32).

11. The switching device according to claim 10, characterized in that: The linkage (41) also includes a linkage cavity (412) disposed in the middle of the linkage, and a reset member (5) is a compression spring disposed in the linkage cavity (412). One end of the reset member (5) acts on the side wall of the linkage cavity (412) and the other end acts on the housing structure of the switching device.

12. The switching device according to claim 1, characterized in that: The switching device also includes a control system, and the coil assembly (33) is connected to the control system; the control system and the switching unit (s) are arranged side by side along the first direction d1.

13. The switching device according to claim 12, characterized in that: The magnetizing component (m) is located on the third direction d3, on the side of the switching unit (s) and the control system.

14. The switching device according to claim 12, characterized in that: The switching device also includes a housing (1), an electromagnetic system (3), a switching unit (s) and a control system, all arranged inside the housing (1). The housing (1) includes a base (11) and a top cover (12) that are joined together along a first direction d1.

15. The switching device according to claim 1, characterized in that: In each of the switch modules (2), the stationary contact group includes a first stationary contact (21) and a second stationary contact (22). The first stationary contact (21) and the moving contact mechanism (23) are arranged side by side at intervals along the third direction d3. The first stationary contact (21) is arranged closer to the electromagnetic system (3) relative to the second stationary contact (22).

16. The switching device according to claim 15, characterized in that: Each of the switch modules (2) further includes two sets of arc-extinguishing chambers (24). One set of arc-extinguishing chambers (24) is the first arc-extinguishing chamber, which cooperates with one end of the first stationary contact (21) of the stationary contact group and the moving contact (23-1) of the moving contact mechanism (23). The other set of arc-extinguishing chambers (24) is the second arc-extinguishing chamber, which cooperates with the other end of the second stationary contact (22) of the stationary contact group and the moving contact (23-1). The first arc-extinguishing chamber, the moving contact mechanism (23) and the second arc-extinguishing chamber are arranged side by side along the third direction d3.

17. The switching device according to claim 16, characterized in that: The switch module (2) also includes a module shell (2-0), which is equipped with a contact system and an arc-extinguishing chamber (24). The contact system includes a moving contact mechanism (23) and a stationary contact group. The module shell (2-0) also includes a buffer chamber (2-1), which is connected to the two arc-extinguishing chambers (24) respectively. Each buffer chamber (2-1) and the corresponding arc-extinguishing chamber (24) are arranged side by side along the first direction d1. The module shell (2-0) also includes a buffer chamber exhaust window (2-03) on its side wall. Each buffer chamber (2-1) is connected to the external environment through a set of buffer chamber exhaust windows (2-03).

18. The switching device according to claim 17, characterized in that: The two buffer chambers (2-1) are located on both sides of the moving contact mechanism (23) in the third direction d3; the two sets of buffer chamber exhaust windows (2-03) are respectively set on the side walls at both ends of the module shell (2-0) in the third direction d3, and are respectively connected to the two buffer chambers (2-1).

19. The switching device according to claim 17, characterized in that: The contact system is located in the middle of the module shell (2-0) on the third direction d3, forming two sub-spaces on both sides of the contact system; the module shell (2-0) also includes partitions (2-04), the two partitions (2-04) are located in the two sub-spaces respectively, and each partition (2-04) divides the corresponding sub-space into an arc-extinguishing chamber mounting cavity (2-06) and a buffer chamber (2-1) arranged side by side along the first direction d1, and each arc-extinguishing chamber (24) is located in the corresponding arc-extinguishing chamber mounting cavity (2-06).

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