Operating mechanism of a magnetic switch and magnetic switch

Abstract

The utility model discloses a magnetic control switch's operating mechanism and magnetic control switch, and electromagnetic system drive shaft is connected with moving iron core, and is connected with snap and transmission part transmission respectively, and the traction rod restricts lock catch in the position with snap snap cooperation, forms the similar multi connecting rod structure with non -magnetic control type switch, and through control system control coil assembly electricity, makes drive shaft drive lever type transmission part rotation realizes magnetic control switch remote quick closing, and drive shaft still drives snap rotation and lock catch snap cooperation and realizes operating mechanism self -locking, and through control system trigger tripping device, makes the traction rod rotation and releases the spacing cooperation with lock catch, realizes operating mechanism to release, to release reset spring and drive transmission part rotation and realize remote quick opening, have remote opening and closing function, and opening and closing speed is fast, and the structure of compatible non -magnetic control type switch operating mechanism is again, when needing to set up manual closing mechanism, can adopt swing handle mode, more in line with the user's use habit, improves the experience.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to an operating mechanism and a magnetic control switch. Background Technology

[0002] The operating mechanism is an important component of the switch. The operating mechanism of traditional non-magnetic switches is mainly a multi-link structure. The switch is opened and closed by manually swinging the handle left and right. In the current technology, the switch usually requires manual operation of the handle to open and close the contacts. This is not only slow, but also inconvenient for remote control of the switch in remote areas.

[0003] To achieve remote control of switch opening and closing, magnetic control is used. However, although the operating mechanism of the magnetically controlled switch in the existing technology has the function of remote opening and closing, it cannot be compatible with the structure of the operating mechanism of the non-magnetically controlled switch. For example, due to structural limitations, the handle needs to be changed into a knob or a linear push rod, which does not conform to the user's usage habits. Utility Model Content

[0004] The purpose of this utility model is to overcome at least one defect of the prior art and provide an operating mechanism and a magnetic switch.

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

[0006] The operating mechanism of the magnetic switch includes an electromagnetic system, a trip latch, a latch, a transmission component, a traction rod, and a return spring. The electromagnetic system includes a coil assembly, a moving iron core driven by the coil assembly, and a drive shaft connected to the moving iron core. The drive shaft is driven by the trip latch and the transmission component. The transmission component drives the moving contact. The trip latch, latch, transmission component, and traction rod are rotatably mounted. The traction rod engages with the latch to limit the latch to a position where it can engage with the trip latch. When the coil assembly is energized, it drives the drive shaft through the moving iron core. The drive shaft is then driven by the transmission component. The drive mechanism causes the moving contact and stationary contact to contact, and drives the return spring to store energy. At the same time, the drive shaft also drives the jump buckle to rotate from the unlocked position to the locked position, engaging with the latch. Because the latch engages with the traction rod and the jump buckle simultaneously, the operating mechanism is self-locked. When the traction rod is subjected to external force, it releases its engagement with the latch. As the operating mechanism enters the unlocked state, the return spring releases energy, driving the transmission component to rotate. The transmission component causes the moving contact and stationary contact to separate. The transmission component also drives the drive shaft to rotate the jump buckle from the locked position to the unlocked position, and the jump buckle releases its latch engagement with the latch.

[0007] Optionally, the transmission component is rotatably configured in the middle, with one end of the transmission component hinged to the drive shaft and the other end used to drive the moving contact. The lever arm of the force exerted by the drive shaft on the transmission component is L1, and the lever arm of the force exerted by the moving contact on the transmission component is L2. The lever arm L1 is smaller than the lever arm L2.

[0008] Optionally, the lever arm L2 is 1.5 to 2 times the size of the lever arm L1.

[0009] Optionally, a locking spring is also included. The jump buckle is provided with a jump buckle latching surface, and the lock is provided with a locking latching surface that latches with the jump buckle latching surface. When the traction rod is subjected to external force, it releases the limiting engagement with the lock. As the jump buckle rotates from the locked position to the unlocked position, the lock first overcomes the force of the lock spring under the force of the jump buckle latching surface acting on the locking latching surface and rotates to release the latch from the jump buckle. Then, driven by the release of the lock spring, it rotates to a position where the jump buckle latching surface can latch with the lock latching surface.

[0010] Optionally, the jump buckle is provided with a jump buckle latch portion, the jump buckle latch portion is provided with a connected jump buckle latch surface and a jump buckle driving surface, the lock is provided with a lock buckle latch portion and a lock notch, the lock buckle latch portion is provided with a connected lock buckle latch surface and a lock receiving surface, the jump buckle driving surface and the lock receiving surface drive engagement, the lock notch includes a lock rotating hole rotatably connected to the first rotating shaft, and a lock sliding opening slidably engaged with the first rotating shaft, the axis of the lock rotating hole serves as the lock rotation center;

[0011] When the latch rotates from the unlocked position to the locked position, it first drives the latch driving surface to push the latch receiving surface, causing the latch to overcome the force of the latch spring and slide along the first rotation axis. Then, it causes the latch driving surface to separate from the latch receiving surface, so that the latch sliding surface slides along the first rotation axis until the first rotation axis is located in the latch rotation hole under the drive of the latch spring release energy, so that the latch latching surface engages with the latching surface of the latch in the locked position.

[0012] Optionally, the operating mechanism is located above the moving contact and the stationary contact in the second direction. The moving iron core and the drive shaft of the electromagnetic system of the operating mechanism are linearly movable along the first direction. The jumper, latch, transmission component, rotation center of the moving contact and the axis of the drive shaft of the operating mechanism are respectively arranged along a third direction. The rotation center of the moving contact is arranged along a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0013] Optionally, the latching engagement point of the jump buckle and the lock is located in the second direction between the rotation centers of the jump buckle and the lock, the latching engagement point of the jump buckle and the lock is located on one side of the line connecting the rotation centers of the jump buckle and the lock, and the limiting engagement point of the jump buckle and the traction rod is located on the other side of the line connecting the rotation centers of the jump buckle and the lock.

[0014] Optionally, the rotation center of the jump buckle, the rotation center of the lock buckle, and the axis of the drive shaft are arranged parallel to each other, and the axis of the drive shaft is located on one side of the line connecting the rotation centers of the lock buckle and the jump buckle.

[0015] Optionally, the rotation center of the traction rod is arranged along a third direction and is parallel and spaced apart from the rotation center of the latch, the rotation center of the jump buckle, and the axis of the drive shaft. The rotation center of the traction rod is located on the other side of the line connecting the rotation centers of the latch and the jump buckle.

[0016] Optionally, the rotation centers of the latch and the transmission component are arranged to coincide, and the latch and the transmission component are respectively rotatably connected to the first rotation shaft.

[0017] Optionally, the jump buckle is provided with a jump buckle transmission hole for transmission connection with the drive shaft. The drive shaft is slidably inserted into the jump buckle transmission hole. The jump buckle transmission hole includes a sliding section and a locking section. The sliding section and the locking section are connected at an obtuse angle. The drive shaft slides along the sliding section to engage with the locking section, driving the jump buckle to rotate from the unlocked position to the locked position, so that the jump buckle locks the drive shaft in the locking section.

[0018] Optionally, the snap fastener includes a snap fastener body, which is a quadrilateral plate structure with four sides. These four sides are a first side, a second side, a third side, and a fourth side connected in sequence. The middle part of the snap fastener body is provided with a snap fastener transmission hole for transmission connection with a drive shaft. A first snap fastener protrusion is provided on the first side of the snap fastener body. The first snap fastener protrusion is provided with a rotation center of the snap fastener. A second snap fastener protrusion is provided on the second side of the snap fastener body as a snap fastener hook part. The second snap fastener protrusion is located away from the first side of the snap fastener body and close to the third side of the snap fastener body. A snap fastener notch is formed at the junction of the second snap fastener protrusion and the third side of the snap fastener body.

[0019] Optionally, the latch includes two latch mounting portions spaced apart along a third direction and a latch connecting portion connected between the ends of the two latch mounting portions away from the traction rod. The latch connecting portion extends toward the traction rod and has a boss structure serving as a latch fastener. The middle side of the two latch mounting portions has a rotation center of the latch. The ends of the two latch mounting portions near the traction rod each extend toward the traction rod and have latch limiting portions.

[0020] Optionally, the moving contact is mounted on a rotating shaft, the rotating shaft is rotatable, and the rotation center of the rotating shaft is located along a third direction; the rotation center of the transmission component is located in the middle of the transmission component, one end of the transmission component is connected to the drive shaft, and the other end of the transmission component is connected to the rotating shaft via a connecting rod. One end of the connecting rod and the transmission component are hinged to the same transmission shaft, and the other end of the connecting rod is hinged to the rotating shaft. The hinge between the connecting rod and the rotating shaft is eccentrically located relative to the rotation center of the rotating shaft.

[0021] Optionally, it also includes a mechanism support, which includes a first support and a second support connected together. The jumper, lock, and transmission component are rotatably disposed in the first support. The traction rod is rotatably disposed on the side of the first support away from the second support. The electromagnetic system is installed in the second support.

[0022] Optionally, a handle assembly is also included, which includes a connected closing handle and a rocker arm. The rocker arm is rotatably configured, and the center of rotation of the rocker arm is set along a third direction. The rocker arm is connected to a transmission component, and by driving the transmission component to rotate, the moving contact and the stationary contact are brought into contact.

[0023] Optionally, the rotation centers of the rocker arm and the transmission component are coincidentally arranged, and the rocker arm and the transmission component are respectively rotatably connected to the first rotation shaft and respectively hinged to the same transmission shaft used to drive the moving contact.

[0024] Optionally, it also includes a trip button. The traction rod is provided with a traction rod trigger part corresponding to the trip button. When the trip button is applied to the traction rod trigger part, it drives the traction rod to rotate and engage with the lock to release the limit.

[0025] A magnetically controlled switch includes a control system, a contact system, a conductive system, and a trip unit. The contact system includes at least one moving contact, and the conductive system includes a stationary contact disposed opposite to the moving contact. The magnetically controlled switch also includes an operating mechanism as described in any one of the above-mentioned magnetically controlled switches. When the control system sends a closing signal, the coil assembly of the operating mechanism is energized; when the control system sends an opening signal, the trip unit is triggered to act on the traction rod of the operating mechanism.

[0026] This utility model discloses an operating mechanism and a magnetically controlled switch. The drive shaft of the electromagnetic system is connected to the moving iron core driven by the coil assembly, and is also connected to the trip latch and the transmission component. The traction rod restricts the latch to the position where it engages with the trip latch, forming a multi-link structure similar to the operating mechanism of a non-magnetically controlled switch. The control system controls the coil assembly to be energized, causing the drive shaft to drive the lever-type transmission component to rotate, achieving remote and rapid closing of the magnetically controlled switch. At the same time, the drive shaft also drives the trip latch to rotate and engage with the latch to achieve self-locking of the operating mechanism. Furthermore, the control system triggers the trip unit, causing the traction rod to rotate and release the limiting engagement with the latch, thus releasing the operating mechanism. This releases the reset spring to drive the transmission component to rotate, achieving remote and rapid opening of the magnetically controlled switch. The operating mechanism has both remote opening and closing functions, and the control system controls the electromagnetic system to be energized to drive the drive shaft to achieve self-locking when closing. The trip unit triggers the traction rod to achieve opening when releasing the latch. The opening and closing speed is fast, and it is compatible with the structure of non-magnetically controlled switch operating mechanisms. When a manual closing mechanism is required, a swing handle can be used, which is more in line with user habits and improves the user experience.

[0027] In addition, the handle assembly can be used for manual closing of magnetic switches. By manually operating the closing handle, the operating mechanism self-locks, closing the magnetic switch. The rotation center of the rocker arm of the handle assembly is also parallel and spaced apart from the rotation center of the moving contact. This allows the lever-type transmission component to be connected between the drive shaft and the moving contact while also being compatible with the transmission connection between the rocker arm and the moving contact. This allows for the use of a traditional left-right swing handle, which is more in line with user habits.

[0028] In addition, the lever arm L1 of the driving shaft force of the electromagnetic system is smaller than the lever arm L2 of the rotating shaft force, making the transmission component similar to an amplification mechanism connected between the driving shaft and the rotating shaft of the electromagnetic system. Thus, the driving shaft of the electromagnetic system can control a larger contact gap with a smaller stroke. Since the driving shaft stroke of the electromagnetic system is small, the size of the coil can be reduced, which is beneficial to reduce the size of the electromagnetic system and reduce the cost.

[0029] In addition, the jumper transmission hole is formed by connecting the sliding section and the locking section at an obtuse angle, which matches the trajectory of the drive shaft relative to the jumper movement, making the transmission between the drive shaft and the jumper more flexible and reliable, and avoiding jamming. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the magnetic control switch of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the magnetic control switch of this utility model, which removes the middle cover and the top cover;

[0032] Figure 3 This is a cross-sectional view of the magnetically controlled switch in the closed state of this utility model;

[0033] Figure 4 This is a cross-sectional view of the magnetic control switch with the top cover removed in the open state of this utility model;

[0034] Figure 5 This is a schematic diagram of the operating mechanism of this utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the operating mechanism of this utility model, which removes the electromagnetic system and the trip button;

[0036] Figure 7 This is a structural schematic diagram of the moving iron core, linkage bracket, and drive shaft of this utility model;

[0037] Figure 8 This is a schematic diagram of the structure of the jump buckle of this utility model;

[0038] Figure 9 This is a schematic diagram of the structure of the latch of this utility model;

[0039] Figure 10 This is a structural schematic diagram of the transmission component of this utility model;

[0040] Figure 11 This is a schematic diagram of the rocker arm of this utility model;

[0041] Figure 12 This is a schematic diagram of the structure of the traction rod of this utility model.

[0042] 1. Outer shell; 11. Base; 12. Middle cover; 13. Top cover; 2. Rotating shaft; 3. Moving contact; 4. Stationary contact; 5. Trip unit; 6. Arc extinguishing system; 7. Operating mechanism;

[0043] Electromagnetic system 100; moving iron core 110; linkage bracket 120; drive shaft 130; stationary iron core 140; coil 150;

[0044] 200; 201; 210; 211; 212; 213; 214; 215; 220; 221; 230; 240; 241; 242; 242; 243; 25; 220; 221; 230; 240; 241; 242; 243;

[0045] 300; 301; 310; 311; 312; 313; 320; 330; 331; 332; 340; 350;

[0046] Transmission component 400; return spring 401; transmission shaft 402; connecting rod 403; transmission part of transmission component 410; transmission hole of transmission component 411; rotation hole of transmission component 412; hinge hole of transmission component 413; clearance notch 414; connecting part of transmission component 420.

[0047] 500; 501; 502; 510; 511; 512; 520; 530; 540.

[0048] Mechanism bracket 600; fixing protrusion 601; through hole 602; first bracket 610; first rotating shaft 611; jump buckle rotating shaft 612; traction rod rotating shaft 613; locking positioning part 614; traction rod positioning part 615; second bracket 620;

[0049] Handle assembly 700; closing handle 710; rocker arm 720; rocker arm rotation hole 721; rocker arm hinge hole 722;

[0050] 800 trip button. Detailed Implementation

[0051] The following description, in conjunction with the accompanying drawings, further illustrates the operating mechanism and specific implementation of the magnetic control switch of this invention. The operating mechanism and magnetic control switch of this invention are not limited to the description in the following embodiments.

[0052] like Figure 1-4As shown, the magnetic switch of this embodiment includes a housing 1, an operating mechanism 7 installed inside the housing 1, a contact system, a conductive system, a control system, a trip unit 5, and an arc extinguishing system 6. The housing 1 includes a base 11, a middle cover 12, and an upper cover 13 that are sequentially connected and covered. The contact system includes a rotating shaft 2 and at least one moving contact 3 disposed on the rotating shaft 2. The number of phases of the conductive system is the same as the number of moving contacts 3. Each phase of the conductive system includes a first terminal and a second terminal located on both sides of the housing 1. Both the first terminal and the second terminal are terminal block structures. One end of the first terminal extends out of the housing 1 for wiring, and the other end serves as a stationary contact 4 disposed opposite to the moving contact 3. One end of the second terminal extends out of the housing 1 for wiring, and the other end is electrically connected to the moving contact 3. The working principle of the magnetic switch is the existing technology. The operating mechanism 7 is equipped with an electromagnetic system for driving the rotating shaft 2 to rotate. When the control system sends a closing signal, the electromagnetic system is energized and drives the rotating shaft 2 to rotate, so that the rotating shaft 2 drives the moving contact 3 to rotate until it contacts the stationary contact 4. At the same time, the operating mechanism 7 enters a self-locking state and remains in the closed state where the moving contact 3 contacts the stationary contact 4. The electromagnetic system is de-energized. When the control system sends a trip signal, it triggers the trip unit 5 to act, so that the operating mechanism 7 is released. At the same time, the operating mechanism 7 drives the rotating shaft 2 to rotate and reset, so that the rotating shaft 2 drives the moving contact 3 to rotate until it separates from the stationary contact 4.

[0053] like Figure 3-6 As shown, the operating mechanism 7 of the magnetic switch in this embodiment includes an electromagnetic system 100, a trip latch 200, a latch 300, a latch spring 301, a transmission component 400, a traction rod 500, and a return spring 401. The electromagnetic system 100 includes a coil assembly, a moving iron core 110 driven by the coil assembly, and a drive shaft 130 connected to the moving iron core 110. The drive shaft 130 is connected to the trip latch 200 and the transmission component 400 respectively. The transmission component 400 is connected to the rotating shaft 2 of the magnetic switch and is used to drive the moving contact 3. The trip latch 200, latch 300, transmission component 400, and traction rod 500 are rotatably arranged. The traction rod 500 is in a limiting cooperation with the latch 300 to limit the latch 300 to a position where it can engage with the trip latch 200. Figure 3As shown, when the coil assembly is energized, it drives the drive shaft 130 through the moving iron core 110. The drive shaft 130 drives the rotating shaft 2 through the transmission component 400, causing the moving contact 3 and the stationary contact 4 to contact each other, and drives the return spring 401 to store energy. At the same time, the drive shaft 130 also drives the jump buckle 200 to rotate from the unlocked position to the locked position, and engages with the latch 300. Since the latch 300 engages with the traction rod 500 at the same time as engaging with the jump buckle 200, the operating mechanism 7 is self-locked. At this time, the magnetic switch is closed, the operating mechanism 7 is in the self-locked state, the latch 300 locks the jump buckle 200 in the locked position, thereby locking the drive shaft 130, and then locking the transmission component 400. The return spring 401 remains in the stored energy state. In this embodiment, the reset spring 401 is connected to the transmission component 400. The transmission component 400 drives the rotating shaft 2 to make the moving contact 3 and the stationary contact 4 in contact, while also driving the reset spring 401 to store energy. When the reset spring 401 releases energy, it drives the transmission component 400 and the drive shaft 130 to reset. In other embodiments, the reset spring 401 can also be connected to the drive shaft 130, the moving iron core 110, or other components.

[0054] like Figure 4 As shown, when the traction rod 500 is subjected to external force, it releases its limiting engagement with the latch 300. As the operating mechanism 7 enters the unlocked state, the reset spring 401 releases energy to drive the transmission component 400 to rotate. The transmission component 400 drives the rotating shaft 2 to separate the moving contact 3 and the stationary contact 4. The transmission component 400 also drives the drive shaft 130 to rotate the jump buckle 200 from the locked position to the unlocked position, and the jump buckle 200 releases its latch engagement with the latch 300.

[0055] It should be noted that the coil assembly of the control system and electromagnetic system 100 is prior art. The coil assembly typically includes a stationary iron core 140 and a coil 150, with the moving iron core 110 and the stationary iron core 140 arranged opposite to each other, and the coil 150 located within the space enclosed by the moving iron core 110 and the stationary iron core 140; Figure 3 As shown, when the control system sends a closing signal, the control coil 150 is energized, magnetizing the stationary iron core 140, causing the moving iron core 110 to move towards the stationary iron core 140 until it is attracted to the stationary iron core 140. The electromagnetic system 100 is in an instantaneous working state. After the closing is completed, the coil 150 is immediately de-energized. Because the operating mechanism 7 can achieve self-locking through the interlocking action of the moving contact 3 and the return spring 401 by the action of ...

[0056] like Figure 4As shown, when the control system sends a trip signal, it triggers the trip unit 5, causing the push rod of the trip unit 5 to move to the right, pushing the traction rod 500 to rotate clockwise against the force of the traction rod spring 501 until it releases the limiting engagement with the latch 300, thus releasing the operating mechanism 7 and realizing the tripping of the magnetic switch. Driven by the latch spring 301, the latch 300 rotates clockwise to a position where it can engage with the trip latch 200. After the trip unit 5 completes the tripping signal, it automatically resets, that is, the push rod of the trip unit 5 moves to the left and separates from the traction rod 500, causing the traction rod 500 to rotate counterclockwise under the drive of the traction rod spring 501 until it re-engages with the latch 300. The trip unit 5 is existing technology and is typically an electromagnetic trip unit.

[0057] In this embodiment, the operating mechanism 7 and the magnetic switch of the magnetic control switch are connected. The drive shaft 130 of the electromagnetic system 100 is connected to the moving iron core 110 driven by the coil assembly, and is also connected to the trip latch 200 and the transmission component 400 respectively. The traction rod 500 restricts the latch 300 to the position where it engages with the trip latch 200, forming a multi-link structure similar to the operating mechanism of a non-magnetic control switch. By controlling the coil assembly to be energized through the control system, the drive shaft 130 drives the lever-type transmission component 400 to rotate, realizing the remote and rapid closing of the magnetic control switch. At the same time, the drive shaft 130 also drives the trip latch 200 to rotate and engage with the latch 300 to achieve self-locking of the operating mechanism 7. Furthermore, by triggering the trip unit 5 through the control system, the traction rod 500 rotates to release the limiting engagement with the latch 300, thereby releasing the operating mechanism 7. This releases the reset spring 401 to drive the transmission component 400 to rotate, achieving remote and rapid opening of the magnetic switch. The operating mechanism 7 has both remote opening and closing functions. The control system controls the electromagnetic system 100 to drive the drive shaft 130 to achieve closing self-locking, triggering the trip unit 5 to drive the traction rod 500 to achieve opening. The opening and closing speed is fast, and it is also compatible with the structure of non-magnetic switch operating mechanisms. When manual closing is required, a swing handle can be used, which is more in line with user habits and improves the user experience.

[0058] like Figure 3-6 As shown, the snap fastener 200 has a snap fastener hook surface 241, and the lock fastener 300 has a lock fastener hook surface 331 that engages with the snap fastener hook surface 241. Figure 4 As shown, when the traction rod 500 is subjected to external force, it releases the limiting engagement with the latch 300. At the same time, the jump buckle 200 rotates from the locked position to the unlocked position. The latch 300 first overcomes the force of the latch spring 301 under the force of the jump buckle latch surface 241 acting on the latch latch surface 331 and rotates to release the latch from the jump buckle 200. Then, under the energy release drive of the latch spring 301, it rotates to the position where the jump buckle latch surface 241 can engage with the latch latch surface 331.

[0059] Furthermore, such as Figure 8-9As shown, the snap 200 is provided with a snap hook portion 240, which has a snap hook surface 241 and a snap driving surface 242 connected together. The lock 300 is provided with a lock hook portion 330 and a lock notch 311, which has a snap hook surface 331 and a lock receiving surface 332 connected together. The snap driving surface 242 and the lock receiving surface 332 drive each other. The lock notch 311 includes a lock rotating hole 312 rotatably connected to the first rotating shaft 611 and a lock sliding opening 313 slidably engaged with the first rotating shaft 611. The axis of the lock rotating hole 312 serves as the rotation center of the lock 300.

[0060] like Figure 3 As shown, when the snap fastener 200 rotates from the unlocked position to the locked position, it first drives the snap fastener driving surface 242 to push the latch receiving surface 332, causing the latch 300 to overcome the force of the latch spring 301 and drive the latch sliding opening 313 to slide along the first rotation axis 611. Then, it drives the snap fastener driving surface 242 to separate from the latch receiving surface 332, causing the latch 300 to slide along the first rotation axis 611 under the energy release drive of the latch spring 301 until the first rotation axis 611 is located in the latch rotation hole 312, so that the latch latching surface 331 and the snap fastener surface 241 located in the locked position latch fastener engage.

[0061] like Figure 3-7 As shown, the operating mechanism 7 is positioned above the rotating shaft 2, moving contact 3, and stationary contact 4 in the second direction. The moving iron core 110 of the electromagnetic system 100 of the operating mechanism 7 and the drive shaft 130 are synchronously moved and linearly along the first direction. The rotation centers of the jump latch 200, lock latch 300, transmission component 400, and traction rod 500 of the operating mechanism 7, and the axis of the drive shaft 130, are respectively arranged along a third direction. The moving contact 3 is coaxial with the rotating shaft 2, and its rotation center coincides with the rotation center of the rotating shaft 2. It is also arranged along a third direction and parallel to and spaced apart from the rotation centers of the jump latch 200, lock latch 300, transmission component 400, traction rod 500, and drive shaft 130 of the operating mechanism 7. The first direction, the second direction, and the third direction are perpendicular to each other. Figure 2-3 As shown, the first direction is the X direction in the figure, which is the length direction of the magnetic switch; the second direction is the Y direction in the figure, which is the height direction of the magnetic switch; and the third direction is the Z direction in the figure, which is the width direction of the magnetic switch. In this embodiment, the rotation centers of the rotating latch 200, latch 300, transmission component 400, and traction rod 500 of the magnetic switch operating mechanism 7, as well as the axis of the linearly moving drive shaft 130, are all parallel and spaced apart from the rotation center of the moving contact 3. This facilitates the formation of a multi-link structure, is more compatible with the structure of non-magnetically controlled switch operating mechanisms, and has a compact and reasonable layout, saving space.

[0062] In this embodiment, the drive shaft 130 is connected to the moving iron core 110 via a linkage bracket 120. The linkage bracket 120 is disposed on one side of the moving iron core 110 in a first direction and above the rotating shaft 2 in a second direction. The drive shaft 130 is disposed inside the linkage bracket 120. The transmission member 400 and the jump buckle 200 extend at least partially into the linkage bracket 120 and are connected to the drive shaft 130 in a transmission manner. The lock buckle 300 is located between the linkage bracket 120 and the rotating shaft 2 in the second direction.

[0063] Preferably, the latching engagement point of the jump buckle 200 and the locking buckle 300 is located between the rotation centers of the jump buckle 200 and the locking buckle 300 in the second direction, that is, the latching engagement point of the jump buckle 200 and the locking buckle 300 is located below the rotation center of the jump buckle 200 and above the rotation center of the locking buckle 300 in the second direction. The latching engagement point of the jump buckle 200 and the locking buckle 300 is located on one side of the line connecting the rotation centers of the jump buckle 200 and the locking buckle 300, and the limiting engagement point of the jump buckle 200 and the traction rod 500 is located on the other side of the line connecting the rotation centers of the jump buckle 200 and the locking buckle 300. The latching surface 331 and the snap-on surface 241 engage to form the latching point between the snap-on buckle 200 and the latch 300. The latch 300 has a latch limiting part 340, and the traction rod 500 has a limiting rod 502 that engages with the latch limiting part 340. The limiting rod 502 and the latch limiting part 340 engage to form the limiting point between the snap-on buckle 200 and the traction rod 500. The relative positions of the snap-on buckle 200, the latch 300, and the traction rod 500 are more reasonable, the force is more balanced, and the self-locking of the operating mechanism 7 is more reliable.

[0064] Preferably, the rotation centers of the jump latch 200, the latch 300, and the drive shaft 130 are arranged parallel to each other, with the drive shaft 130's axis located on one side of the line connecting the rotation centers of the latch 300 and the jump latch 200. The jump latch 200, drive shaft 130, and latch 300 are rationally arranged and reliably cooperate with each other. During magnetic closing, the drive shaft 130 moves on one side of the line connecting the rotation centers of the latch 300 and the jump latch 200. This reliably provides torque to drive the jump latch 200 to rotate and engage with the latch 300, thus achieving reliable self-locking of the operating mechanism 7, without interfering with the rotation of the latch 300 and the jump latch 200.

[0065] Furthermore, the rotation center of the traction rod 500 is parallel and spaced apart from the rotation centers of the latch 300, the jump buckle 200, and the axis of the drive shaft 130. The rotation center of the traction rod 500 is located on the other side of the line connecting the rotation centers of the latch 300 and the jump buckle 200. The axis of the drive shaft 130, the latch engagement point of the jump buckle 200 and the latch 300 are located on the same side of the line connecting the rotation centers of the latch 300 and the jump buckle 200; the rotation center of the traction rod 500, the limiting engagement point of the jump buckle 200 and the traction rod 500 are located on the same side of the line connecting the rotation centers of the latch 300 and the jump buckle 200. In this embodiment, the traction rod 500 is located on the same side of the latch 300, the linkage bracket 120, and the rotating shaft 2 in the first direction, and is located between the linkage bracket 120 and the rotating shaft 2 in the second direction. The traction rod 500 and the latch 300 are reasonably arranged and reliably cooperate with each other. They do not interfere with the drive shaft 130 and the trip latch 200. This allows the traction rod 500 to rotate and release the latch 300 from its limit. In turn, the latch 300 rotates and releases its latching engagement with the trip latch 200, enabling the operating mechanism 7 to reliably open and release the circuit breaker. It also better accommodates the structure of non-magnetically controlled switch operating mechanisms.

[0066] like Figure 3 , 5 As shown in Figure 6, the operating mechanism 7 of the magnetic switch in this embodiment further includes a handle assembly 700. The handle assembly 700 includes a connected closing handle 710 and a rocker arm 720. The rocker arm 720 is rotatably configured, and its rotation center is set along a third direction. The rocker arm 720 is connected to the transmission component 400. By driving the transmission component 400 to rotate, the drive shaft 2 drives the moving contact 3 and the stationary contact 4 to contact. The handle assembly 700 can be used for manual closing of the magnetic switch. By manually operating the closing handle 710, the operating mechanism 7 is self-locked, causing the magnetic switch to close. The rotation center of the rocker arm 720 of the handle assembly is also parallel and spaced apart from the rotation center of the moving contact 3. This allows the lever-type transmission component 400 to be connected to the drive shaft 130 and the moving contact 3 while also being compatible with the rocker arm 720 and the moving contact 3. This achieves the use of a traditional left-right swing handle, which is more in line with user habits.

[0067] like Figure 2 , 5As shown in Figure 6, the operating mechanism 7 of the magnetic switch also includes a mechanism bracket 600. The mechanism bracket 600 includes a first bracket 610 and a second bracket 620 connected together. The jump buckle 200, the locking buckle 300, and the transmission component 400 are rotatably disposed within the first bracket 610. The traction rod 500 is rotatably disposed on the side of the first bracket 610 away from the second bracket 620. The electromagnetic system 100 is installed within the second bracket 620. The handle assembly 700 is located within the first bracket 610 of the mechanism bracket 600, and the rocker arm 720 of the handle assembly 700 is rotatably disposed within the first bracket 610. All components of the operating mechanism 7 are integrated on the mechanism bracket 600, making the operating mechanism 7 modular and easy to install.

[0068] Specifically, both the first bracket 610 and the second bracket 620 are inverted U-shaped structures. The two sides of the first bracket 610 are spaced apart in a third direction, and the top edge of the first bracket 610 is connected to the upper sides of its two sides. Similarly, the two sides of the second bracket 620 are spaced apart in a third direction, and the top edge of the second bracket 620 is connected to the upper sides of its two sides. The first bracket 610 and the second bracket 620 are arranged side-by-side along a first direction, and their top edges are integrally connected. The distance between the two sides of the first bracket 610 is less than the distance between the two sides of the second bracket 620. Fixing protrusions 601 protrude outwards from the lower sides of the two sides of the first bracket 610 and the lower sides of the two sides of the second bracket 620, respectively. These fixing protrusions 601 can be fixed to the middle cover 12 of the outer casing 1 by means of screws, riveting, or other methods. The upper side of the mechanism bracket 600, namely the top edge of the first bracket 610 and the second bracket 620, is provided with a through hole 602. The portion of the through hole 602 on the top edge of the second bracket 620 is used for heat dissipation of the coil 150 of the electromagnetic system 100. The portion of the through hole 602 on the top edge of the first bracket 610 is used for the closing handle 710 to pass through. One end of the closing handle 710 of the handle assembly 700 passes through the through hole 602 and extends out of the upper cover 13 of the outer casing 1 for manual operation. A first rotating shaft 611, a tripping buckle rotating shaft 612, and a traction rod rotating shaft 613 are connected between the two sides of the first bracket 610. The first rotating shaft 611, the tripping buckle rotating shaft 612, and the traction rod rotating shaft 613 are arranged in parallel and spaced apart. The axes of the first rotating shaft 611, the tripping buckle rotating shaft 612, and the traction rod rotating shaft 613 are respectively arranged along a third direction.

[0069] Preferably, the inner sides of both sides of the first bracket 610 are provided with a locking positioning part 614, and the locking buckle 300 is provided with a locking protrusion 350 corresponding to the locking positioning part 614. The locking positioning part 614 and the locking protrusion 350 stop and cooperate to position the locking buckle 300 in a position that can be fastened with the snap buckle 200.

[0070] Preferably, the first bracket 610 has a downwardly protruding traction rod positioning part 615 on at least one side, and the traction rod 500 has a traction rod limiting surface 512 that cooperates with the traction rod positioning part 615. After the latch 300 rotates clockwise under the drive of the latch spring 301 to a position that can cooperate with the trip latch 200, the trip unit 5 automatically resets after completing the trip signal, that is, the push rod of the trip unit 5 moves to the left and separates from the traction rod 500, so that the traction rod 500 rotates counterclockwise under the drive of the traction rod spring 501 until the traction rod limiting surface 512 abuts against the traction rod positioning part 615.

[0071] Preferably, the rotation centers of the latch 300 and the transmission component 400 coincide, and the latch 300 and the transmission component 400 are rotatably connected to the first rotation shaft 611. The latch 300 and the transmission component 400 share the same rotation shaft, reducing the number of parts and making the structure simpler, more compact, and easier to install. Of course, the latch 300 and the transmission component 400 can also be located on different rotation shafts.

[0072] like Figure 3-4 As shown in Figure 8, the jump buckle 200 is provided with a jump buckle transmission hole 211 for transmission connection with the drive shaft 130. The drive shaft 130 is slidably inserted into the jump buckle transmission hole 211, and the length of the jump buckle transmission hole 211 is greater than the outer diameter of the drive shaft 130. The jump buckle transmission hole 211 includes a sliding section 214 and a locking section 215, which are connected at an obtuse angle. The drive shaft 130 slides along the sliding section 214 to engage with the locking section 215. When the jump buckle 200 rotates from the unlocked position to the locked position, the jump buckle 200 locks the drive shaft 130 in the locking section 215. The end of the locking section 215 of the jump buckle transmission hole 211 is provided with a first arc-shaped sidewall 212, and the end of the sliding section 214 of the jump buckle transmission hole 211 is provided with a second arc-shaped sidewall 213, as shown in Figure 8. Figure 3 As shown, when the snap fastener 200 is in the locked position, the drive shaft 130 is located within the locking section 215 and is limited by the first arc-shaped sidewall 212. Furthermore, because the snap fastener 200 and the latch 300 are engaged, the snap fastener 200 locks the drive shaft 130 within the locking section 215 via the first arc-shaped sidewall 212. Figure 4 As shown, when the snap fastener 200 is in the unlocked position, the drive shaft 130 is located within the sliding section 214 and is spaced apart from or abuts against the second arc-shaped sidewall 213, thus releasing the snap fastener 200 from the latch 300. The snap fastener transmission hole 211 is formed by the sliding section 214 and the locking section 215 connected at an obtuse angle, matching the trajectory of the drive shaft 130 relative to the snap fastener 200, making the transmission between the drive shaft 130 and the snap fastener 200 more flexible and reliable, and avoiding jamming.

[0073] like Figure 8-9As shown, the snap fastener 200 is provided with a snap fastener hook portion 240, and the locking buckle 300 is provided with a locking buckle hook portion 330, as... Figure 3 As shown, when the traction rod 500 and the latch 300 are in a limiting engagement and the jump buckle 200 is in the locked position, the latch part 330 latches onto the jump buckle part 240 and blocks the trajectory of the jump buckle part 240 as it rotates towards the unlocked position; Figure 4 As shown, when the traction rod 500 is released from its limiting engagement with the latch 300, the latch latch 330 separates from the snap latch 240.

[0074] Preferably, the buckle 200 and the latch 300 are engaged at the buckle, and the rotation center of the buckle 200 is located on both sides of the buckle 200 and the drive shaft 130 transmission connection point, that is, the buckle buckle 240 and the rotation center of the buckle 200 are located on both sides of the buckle transmission hole 211.

[0075] Specifically, such as Figure 3 , 8 As shown, the snap fastener 200 of this embodiment includes a snap fastener body 210, which is a quadrilateral plate structure with four sides. These four sides are a first side, a second side, a third side, and a fourth side connected in sequence. The first side, the second side, and the third side of the snap fastener body 210 are preferably straight sides, and the fourth side is preferably an arc side. A snap fastener transmission hole 211 is provided in the middle of the snap fastener body 210. A first snap fastener protrusion 220 is provided on the first side of the snap fastener body 210. The first snap fastener protrusion 220 is preferably an arc-shaped structure and is provided with a snap fastener rotating mechanism. The movable hole 221 connects the snap fastener 200 to the snap fastener rotating shaft 612 on the first bracket 610. The axis of the snap fastener rotating hole 221 coincides with the axis of the snap fastener rotating shaft 612, serving as the rotation center of the snap fastener 200. A second snap fastener protrusion, serving as the snap fastener latch 240, protrudes from the second side of the snap fastener body 210. This second snap fastener protrusion is located away from the first side of the snap fastener body 210 and close to the third side of the snap fastener body 210. A snap fastener notch 230 is formed at the junction of the second snap fastener protrusion and the third side of the snap fastener body 210. The side of the snap fastener latch 240 facing the snap fastener notch 230 serves as the snap fastener latch surface 241, and the other side serves as the snap fastener driving surface 242.

[0076] like Figure 5 As shown, the operating mechanism 7 of the magnetic switch in this embodiment also includes a trip spring 201 connected to the trip spring 200, such as... Figure 4 As shown, when the latch 200 rotates clockwise from the locked position to the unlocked position, the latch spring 201 stores energy, thus the latch spring 201 always provides a torque to make the latch 200 rotate counterclockwise; as Figure 3As shown, when the drive shaft 130 drives the latch 200 to rotate counterclockwise from the unlocked position to the locked position, the latch spring 201 always provides the torque that causes the latch 200 to rotate counterclockwise, keeping the side of the latch transmission hole 211 in contact with the drive shaft 130. In this embodiment, the latch spring 201 is a torsion spring, which is sleeved on the latch rotation shaft 612. Of course, the latch spring 201 can also be a tension spring, compression spring, etc.

[0077] like Figure 3 , 9 As shown, the latch 300 and the jump buckle 200 latching engagement point, and the latch 300 and the traction rod 500 limiting engagement point are located on both sides of the rotation center of the latch 300. The latch 300 and the jump buckle 200 latching engagement point refers to the latching engagement surface 331 of the latching engagement part 330, and the latch 300 and the traction rod 500 limiting engagement point refers to the latch limiting part 340.

[0078] Specifically, such as Figure 5 , 9 As shown, the latch 300 of this embodiment includes two latch mounting portions 310 spaced apart along a third direction and a latch connecting portion 320 connecting the ends of the two latch mounting portions 310 away from the traction rod 500. The latch connecting portion 320 extends toward the traction rod 500 and has a boss structure serving as a latch buckle portion 330. The latch mounting portions 310 are plate-shaped structures perpendicular to the third direction. The middle side of the two latch mounting portions 310 is provided with a latch notch 311, and the latch 300 passes through the latch rotation hole 3 of the latch notch 311. 12 is rotatably connected to the first rotating shaft 611 on the first bracket 610. That is, when the first rotating shaft 611 is located in the locking rotating hole 312, the axis of the locking rotating hole 312 of the locking notch 311 coincides with the axis of the first rotating shaft 611, which is the rotation center of the locking 300. The two locking mounting parts 310 are provided with locking limiting parts 340 extending towards the traction rod 500 at the end near the traction rod 500, and the two locking mounting parts 310 are provided with locking protrusions 350 extending outward at the end near the traction rod 500.

[0079] like Figure 5 As shown, in this embodiment, the locking spring 301 is a torsion spring, and two springs are provided. The two locking springs 301 are respectively sleeved on both ends of the first rotating shaft 611, located on the outside of the two locking mounting portions 310. One end of each locking spring 301 abuts against the locking protrusion 350 on the two locking mounting portions 310, and the other end of each locking spring 301 is connected to the first bracket 610. Of course, one, three, or more locking springs 301 can also be provided; the locking spring 301 can also be a tension spring, compression spring, etc.

[0080] like Figure 3As shown, the transmission component 400 is rotatably mounted in the middle. One end of the transmission component 400 is hinged to the drive shaft 130, and the other end is connected to the rotating shaft 2 via a connecting rod 403, for driving the moving contact 3, which is mounted on the rotating shaft 2. The lever arm of the force exerted by the drive shaft 130 on the transmission component 400 is L1, and the lever arm of the force exerted by the moving contact 3 on the transmission component 400 is L2, where the lever arm L1 is smaller than the lever arm L2. Since the moving contact 3 is mounted on the rotating shaft 2, the transmission component 400 and the rotating shaft 2 are connected in a transmission manner, meaning that the moving contact 3 interacts with the transmission component 400 through the rotating shaft 2, and the lever arm L2 is also the lever arm of the force exerted by the rotating shaft 2 on the transmission component 400. The lever arm L1 of the driving shaft 130 of the electromagnetic system 100 is smaller than the lever arm L2 of the rotating shaft 2, making the transmission component 400 similar to an amplification mechanism connecting the driving shaft 130 and the rotating shaft 2 of the electromagnetic system 100. This allows the driving shaft 130 of the electromagnetic system 100 to control a larger contact gap with a smaller stroke. Because the stroke of the driving shaft 130 of the electromagnetic system 100 is smaller, the size of the coil 150 can be reduced, which helps to reduce the size of the electromagnetic system 100 and lower costs. Preferably, the lever arm L2 is 1.5 to 2 times the size of the lever arm L1.

[0081] like Figure 3 , 10 As shown, the transmission component 400 is provided with a transmission hole 411 for transmission connection with the drive shaft 130. The drive shaft 130 is slidably inserted into the transmission hole 411, and the length of the transmission hole 411 is greater than the outer diameter of the drive shaft 130, making the transmission between the drive shaft 130 and the transmission component 400 more flexible and reliable, and avoiding jamming. The transmission hole 411 is preferably an oblong hole.

[0082] like Figure 3 , 10 As shown, the middle part of the transmission component 400 is rotatably connected to the first rotating shaft 611. One end of the transmission component 400 extends into the linkage bracket 120 and is connected to the drive shaft 130 through the transmission hole 411. The other end of the transmission component 400 is located between the linkage bracket 120 and the rotating shaft 2 in the second direction, and is connected to the rotating shaft 2 through the connecting rod 403. One end of the connecting rod 403 and the transmission component 400 are hinged to the same transmission shaft 402, and the other end of the connecting rod 403 is hinged to the rotating shaft 2. The hinge between the connecting rod 403 and the rotating shaft 2 is eccentrically set with respect to the rotation center of the rotating shaft 2.

[0083] In this embodiment, the transmission component 400 is connected to the rotating shaft 2 via two connecting rods 403. Of course, one, three or more connecting rods 403 can also be provided.

[0084] In this embodiment, the transmission component 400 is indirectly connected to the rotating shaft 2 via a connecting rod 403. The rotating shaft 2 acts on the transmission component 400 in sequence via the connecting rod 403 and the transmission shaft 402. That is, the transmission component 400 and the transmission shaft 402 interact directly. The lever arm L2 refers to the lever arm of the force exerted by the transmission shaft 402 on the transmission component 400. Of course, the transmission component 400 can also be directly connected to the rotating shaft 2.

[0085] Specifically, such as Figure 5 , 10 As shown, the transmission component 400 in this embodiment includes two transmission parts 410 spaced apart along a third direction and a transmission connecting part 420 connecting the two transmission parts 410. The transmission component 400 is located between two locking mounting parts 310 in a third direction, and the jump buckle 200 is located between the two transmission parts 410 in a third direction. The transmission part 410 has a transmission rotation hole 412 in the middle. The transmission component 400 is rotatably connected to a first rotating shaft 611 on a first bracket 610 through the transmission rotation hole 412. That is, the axis of the transmission rotation hole 412 and the axis of the first rotating shaft 611 coincide, which is the rotation center of the transmission component 400. One end of the transmission part 410 has a transmission hole 411. The other end of the transmission part 410 of the transmission component is provided with a transmission component hinge hole 413 hinged to the transmission shaft 402. The transmission part 410 of the transmission component is a plate-shaped structure perpendicular to the third direction, and a clearance notch 414 for avoiding the lock connection part 320 is provided on the side facing the lock connection part 320, so that the transmission part 410 of the transmission component is a bent rod structure as a whole. The transmission component connection part 420 is connected between the opposite sides of the clearance notches 414 of the two transmission parts 410. The transmission hole 411 and the rotation hole 412 of the transmission component are located on one side of the clearance notch 414, and the hinge hole 413 of the transmission component is located on the other side of the clearance notch 414. The centers of the transmission hole 411, the rotation hole 412 and the hinge hole 413 of the transmission component are located at the three vertices of a triangle.

[0086] like Figure 5 As shown, in this embodiment, the return spring 401 is a tension spring, and two springs are provided. The two return springs 401 are located on both sides of the first bracket 610 in the third direction. One end of each return spring 401 is hung on both ends of the drive shaft 402, and the other end of each return spring 401 is connected to the two sides of the first bracket 610. Of course, one, three, or more return springs 401 can also be provided; the return spring 401 can also be a torsion spring, compression spring, etc.

[0087] like Figure 3 , 5As shown in Figure 6, the rotation centers of the rocker arm 720 and the transmission component 400 coincide. The rocker arm 720 and the transmission component 400 are rotatably connected to the first rotating shaft 611 and hinged to the same transmission shaft 402 for driving the moving contact 3. The rocker arm 720 and the transmission component 400 share both the same rotating shaft and the same transmission shaft 402 for driving the moving contact 3, reducing the number of parts and making the structure simpler, more compact, and easier to install.

[0088] like Figure 3 , 11 As shown, the rocker arm 720 in this embodiment is an inverted U-shaped structure. The top edge of the rocker arm 720 is fixedly connected to the closing handle 710 by means of screw connection, riveting, snap-fit, etc. The two sides of the rocker arm 720 are spaced apart along the third direction. The linkage bracket 120 is located between the two sides of the rocker arm 720 in the third direction. Both sides of the rocker arm 720 are similar to triangular plate structures. The top corners of the two sides of the rocker arm 720 are integrally connected to the two ends of the top edge of the rocker arm 720. One bottom corner of each side of the rocker arm 720 is provided with a rocker arm rotation hole 721 that is rotatably connected to the first rotation shaft 611. The other bottom corner of each side of the rocker arm 720 is provided with a rocker arm hinge hole 722 that is hinged to the transmission shaft 402.

[0089] like Figure 5 As shown, the operating mechanism 7 of the magnetic switch in this embodiment also includes a trip button 800. The traction rod 500 is provided with a traction rod trigger part 520 corresponding to the trip button 800. When the trip button 800 acts on the traction rod trigger part 520, it drives the traction rod 500 to rotate and release the locking latch 300 from its limit engagement. The trip button 800 can be used to manually trip the magnetic switch during debugging. By manually operating the trip button 800, the operating mechanism 7 is released, causing the magnetic switch to trip. Specifically, the trip button 800 is linearly movable along the second direction and is mounted on the upper cover 13 of the outer casing 1.

[0090] like Figure 5 , 12As shown, the traction rod 500 in this embodiment includes a traction rod body 510, which is a long rod structure arranged along a third direction in the length direction. The traction rod body 510 is provided with a traction rod rotation hole 511. The traction rod 500 is rotatably connected to the traction rod rotation shaft 613 on the first bracket 610 through the traction rod rotation hole 511. That is, the axis of the traction rod rotation hole 511 and the axis of the traction rod rotation shaft 613 coincide, which is the rotation center of the traction rod 500. The upper side of the traction rod body 510 is a plane that serves as the traction rod limiting surface 512. Two traction rod protrusions 530 are respectively provided on the upper side of the traction rod body 510, which are spaced apart along a third direction. A limiting rod 502 is connected between the two traction rod protrusions 530. The locking limiting part 340 extends between the two traction rod protrusions 530 and is limited and engaged with the limiting rod 502. When the magnetic switch is closed, the traction rod 500 rests on the locking limit part 340 via the limit rod 502 on the traction rod 500, thereby limiting the locking latch 300 to the position where it engages with the trip latch 200. When the magnetic switch is open, the traction rod 500 rotates clockwise, causing the limit rod 502 to separate from the locking limit part 340, thereby releasing the limiting engagement between the limit rod 502 on the traction rod 500 and the locking latch 300.

[0091] The upper side of the pull rod body 510 has a protruding pull rod trigger part 520, which is bent downwards towards the trip button 800. The upper side of the pull rod body 510 also has a protruding pull rod hook 540.

[0092] like Figure 5 As shown, in this embodiment, the traction rod spring 501 is a tension spring. One end of the traction rod spring 501 is hung on the traction rod hook 540, and the other end is connected to the first bracket 610. Of course, the traction rod spring 501 can also be a torsion spring, compression spring, etc.

[0093] The magnetic switch in this embodiment has automatic closing, automatic opening, manual closing, and manual opening functions.

[0094] The automatic closing process of the magnetically controlled switch in this embodiment is as follows: Figure 3As shown, when the control system sends a closing signal, the control coil 150 is energized, magnetizing the stationary iron core 140, causing the moving iron core 110 to move left and engage with the stationary iron core 140. The moving iron core 110 drives the drive shaft 130 to move left synchronously to the drive shaft closing position. The drive shaft 130 drives the transmission component 400 to rotate counterclockwise around the first rotation shaft 611 through the transmission component rotation hole 412. The transmission component 400 drives the rotating shaft 2 and the moving contact 3 to rotate counterclockwise through the connecting rod 403, causing the moving contact 3 and the stationary contact 4 to contact. The transmission component 400 also drives the reset spring 401 to store energy. At the same time, the drive shaft 130 slides from the sliding section 214 to the locking section 21 in the trip transmission hole 211 of the trip latch 200. 5. Drive the jump buckle 200 to rotate counterclockwise around the jump buckle rotation shaft 612 from the unlock position to the locked position, so that the jump buckle latch surface 241 and the latch latch surface 331 of the lock buckle 300 latch together. The lock buckle 300 is then limited by the limit rod 502 on the traction rod 500. At this time, the magnetic control switch is closed, the operating mechanism 7 is in the self-locking state, and the lock buckle 300 locks the jump buckle 200 in the locked position. Thus, the jump buckle 200 locks the drive shaft 130 in the locking section 215 through the first arc-shaped side wall 212. In turn, the drive shaft 130 locks the transmission component 400, so that the transmission component 400 can overcome the force of the return spring 401 and remain stationary. The return spring 401 remains in the stored energy state.

[0095] The automatic tripping process of the magnetically controlled switch in this embodiment is as follows: Figure 2 , 4 As shown, when the control system issues a trip signal, it triggers the trip unit 5, causing the push rod of the trip unit 5 to move to the right and push the traction rod 500. The traction rod 500 overcomes the force of the traction rod spring 501 and rotates clockwise around the traction rod rotation shaft 613, causing the limit rod 502 to release its limit engagement with the latch 300, so that the operating mechanism 7 enters the unlocked state. This releases the energy of the reset spring 401, driving the transmission component 400 to rotate clockwise around the first rotation shaft 611. The transmission component 400 drives the rotating shaft 2 and the moving contact 3 to rotate clockwise through the connecting rod 403, causing the moving contact 3 and the stationary contact 4 to separate. The transmission component 400 also drives the drive shaft 130 to move to the right and reset through the transmission hole 411, that is, the drive shaft 130 slides from the locking section 215 to the sliding section 21. 4. The drive shaft 130 moves to the right to the open position. Driven by the rightward movement of the drive shaft 130 and the release of energy from the trip spring 201, the trip spring 200 rotates clockwise around the trip spring rotation axis 612 from the locked position to the unlocked position. While the trip spring 200 rotates clockwise from the locked position to the unlocked position, the latch 300 first overcomes the force of the latch spring 301 under the force of the trip spring latch surface 241 acting on the latch latch surface 331 and rotates counterclockwise to disengage from the trip spring 200. Then, driven by the release of energy from the latch spring 301, it rotates clockwise until the latch protrusion 350 is blocked by the latch positioning part 614 of the first bracket 610. That is, the latch 300 is located at the position where the latch latch surface 331 can engage with the trip spring latch surface 241.

[0096] The manual closing process of the magnetically controlled switch in this embodiment is as follows: Figure 3 As shown, pushing the handle assembly 700 to swing the closing handle 710 to the left causes the rocker arm 720 to rotate counterclockwise around the first rotating shaft 611. The rocker arm 720 drives the transmission component 400 to rotate counterclockwise around the first rotating shaft 611 via the transmission shaft 402. The rotation of the transmission component 400 drives the rotating shaft 2 through two connecting rods 403, causing the moving contact 3 and the stationary contact 4 to contact, thus closing the magnetic switch. At the same time, the transmission component 400 also drives the drive shaft 130 to move to the left to the drive shaft closing position through the transmission hole 411, causing the trip latch 200 to engage with the latch 300, and the operating mechanism 7 to self-lock. The specific action process is the same as the automatic closing process, and will not be described again here.

[0097] The manual tripping process of the magnetic switch in this embodiment is as follows: Figure 4-5 As shown, pressing the trip button 800 causes the trip button 800 to drive the traction rod 500 to rotate clockwise around the traction rod rotation shaft 613 through the traction rod trigger part 520, overcoming the force of the traction rod spring 501. This releases the operating mechanism 7 and trips the circuit breaker. The specific action process is the same as the automatic tripping process, and will not be described again here.

[0098] 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.

[0099] 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. The operating mechanism (7) of a magnetically controlled switch, characterized in that: The device includes an electromagnetic system (100), a jumper (200), a latch (300), a transmission component (400), a traction rod (500), and a return spring (401). The electromagnetic system (100) includes a coil assembly, a moving iron core (110) driven by the coil assembly, and a drive shaft (130) connected to the moving iron core (110). The drive shaft (130) is connected to the jumper (200) and the transmission component (400) respectively. The transmission component (400) is used to drive the moving contact (3). The jumper (200), latch (300), transmission component (400), and traction rod (500) are rotatably arranged. The traction rod (500) is in a limiting cooperation with the latch (300) to limit the latch (300) to a position that can be fastened with the jumper (200). When the coil assembly is energized, it drives the drive shaft (130) through the moving iron core (110). The transmission component (400) drives the moving contact (3) and the stationary contact (4) to contact, and drives the return spring (401) to store energy. At the same time, the drive shaft (130) also drives the jump buckle (200) to rotate from the unlocked position to the locked position, and engages with the latch (300). Since the latch (300) engages with the traction rod (500) at the same time as engaging with the jump buckle (200), the operating mechanism (7) is self-locked; the traction rod (500) is subjected to external force. When activated, the locking mechanism (300) is released from its limiting engagement. As the operating mechanism (7) enters the unlocked state, the return spring (401) releases energy to drive the transmission component (400) to rotate. The transmission component (400) causes the moving contact (3) and the stationary contact (4) to separate. The transmission component (400) also drives the drive shaft (130) to rotate the jump buckle (200) from the locked position to the unlocked position, and the jump buckle (200) and the locking mechanism (300) are released from their latching engagement.

2. The operating mechanism (7) of the magnetic switch according to claim 1, characterized in that: The transmission component (400) is rotatably disposed in the middle. One end of the transmission component (400) is hinged to the drive shaft (130), and the other end is used to drive the moving contact (3). The lever arm of the force exerted by the drive shaft (130) on the transmission component (400) is L1, and the lever arm of the force exerted by the moving contact (3) on the transmission component (400) is L2. The lever arm L1 is smaller than the lever arm L2.

3. The operating mechanism (7) of the magnetically controlled switch according to claim 2, characterized in that: The lever arm L2 is 1.5 to 2 times the size of the lever arm L1.

4. The operating mechanism (7) of the magnetically controlled switch according to claim 1, characterized in that: It also includes a locking spring (301), the jump buckle (200) is provided with a jump buckle hook surface (241), and the lock buckle (300) is provided with a lock buckle hook surface (331) that hooks and engages with the jump buckle hook surface (241); when the traction rod (500) is subjected to external force, it releases the limiting engagement with the lock buckle (300). At the same time as the jump buckle (200) rotates from the locked position to the unlocked position, the lock buckle (300) first overcomes the force of the lock buckle spring (301) under the force of the jump buckle hook surface (241) acting on the lock buckle hook surface (331) and rotates to release the hook from the jump buckle (200). Then, under the energy release drive of the lock buckle spring (301), it rotates to the position where the jump buckle hook surface (241) can hook and engage with the lock buckle hook surface (331).

5. The operating mechanism (7) of the magnetically controlled switch according to claim 4, characterized in that: The jump buckle (200) is provided with a jump buckle latch part (240), the jump buckle latch part (240) is provided with a connected jump buckle latch surface (241) and a jump buckle driving surface (242), the lock buckle (300) is provided with a lock buckle latch part (330) and a lock buckle notch 311, the lock buckle latch part (330) is provided with a connected lock buckle latch surface (331) and a lock buckle driven surface (332), the jump buckle driving surface (242) and the lock buckle driven surface (332) drive to cooperate, the lock buckle notch (311) includes a lock buckle rotating hole (312) rotatably connected to the first rotating shaft (611) and a lock buckle sliding opening (313) slidably cooperated with the first rotating shaft (611), the axis of the lock buckle rotating hole (312) serves as the rotation center of the lock buckle (300); When the snap fastener (200) rotates from the unlocked position to the locked position, it first drives the snap fastener driving surface (242) to push the latch receiving surface (332), causing the latch (300) to overcome the force of the latch spring (301) and drive the latch sliding port (313) to slide along the first rotating shaft (611). Then, it drives the snap fastener driving surface (242) to separate from the latch receiving surface (332), causing the latch (300) to slide along the first rotating shaft (611) under the energy release drive of the latch spring (301) until the first rotating shaft (611) is located in the latch rotating hole (312), so that the latch latching surface (331) and the snap fastenering surface (241) located in the locked position can latch together.

6. The operating mechanism (7) of the magnetically controlled switch according to claim 1, characterized in that: The operating mechanism (7) is located above the moving contact (3) and the stationary contact (4) in the second direction. The moving iron core (110) and the drive shaft (130) of the electromagnetic system (100) of the operating mechanism (7) are linearly moved along the first direction. The jumper (200), latch (300), transmission component (400), rotation center of the moving contact (3) and axis of the drive shaft (130) of the operating mechanism (7) are respectively arranged along the third direction. The rotation center of the moving contact (3) is arranged along the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

7. The operating mechanism (7) of the magnetically controlled switch according to claim 6, characterized in that: The latching engagement point of the jump buckle (200) and the lock buckle (300) is located in the second direction between the rotation centers of the jump buckle (200) and the lock buckle (300). The latching engagement point of the jump buckle (200) and the lock buckle (300) is located on one side of the line connecting the rotation centers of the jump buckle (200) and the lock buckle (300). The limiting engagement point of the jump buckle (200) and the traction rod (500) is located on the other side of the line connecting the rotation centers of the jump buckle (200) and the lock buckle (300).

8. The operating mechanism (7) of the magnetically controlled switch according to claim 6, characterized in that: The rotation center of the jump buckle (200), the rotation center of the latch (300), and the axis of the drive shaft (130) are arranged parallel to each other, and the axis of the drive shaft (130) is located on one side of the line connecting the rotation centers of the latch (300) and the jump buckle (200).

9. The operating mechanism (7) of the magnetically controlled switch according to claim 8, characterized in that: The rotation center of the traction rod (500) is set along a third direction and is parallel and spaced apart from the rotation center of the latch (300), the rotation center of the jump buckle (200) and the axis of the drive shaft (130). The rotation center of the traction rod (500) is located on the other side of the line connecting the rotation centers of the latch (300) and the jump buckle (200).

10. The operating mechanism (7) of the magnetically controlled switch according to claim 6, characterized in that: The rotation centers of the latch (300) and the transmission component (400) are coincidentally arranged, and the latch (300) and the transmission component (400) are respectively rotatably connected to the first rotating shaft (611).

11. The operating mechanism (7) of the magnetically controlled switch according to any one of claims 4-6, characterized in that: The jump buckle (200) is provided with a jump buckle transmission hole (211) for transmission connection with the drive shaft (130). The drive shaft (130) is slidably inserted into the jump buckle transmission hole (211). The jump buckle transmission hole (211) includes a sliding section (214) and a locking section (215). The sliding section (214) and the locking section (215) are connected at an obtuse angle. The drive shaft (130) slides along the sliding section (214) to be in a limited engagement with the locking section (215), driving the jump buckle (200) to rotate from the unlocked position to the locked position, so that the jump buckle (200) locks the drive shaft (130) in the locking section (215).

12. The operating mechanism (7) of the magnetically controlled switch according to any one of claims 4-9, characterized in that: The snap fastener (200) includes a snap fastener body (210), which is a quadrilateral plate structure with four sides. The four sides are a first side, a second side, a third side, and a fourth side connected in sequence. The middle part of the snap fastener body (210) is provided with a snap fastener transmission hole (211) for transmission connection with the drive shaft (130). The first side of the snap fastener body (210) has a first snap fastener protrusion (220) which is located at the rotation center of the snap fastener (200). The second side of the snap fastener body (210) has a second snap fastener protrusion that serves as a snap fastener latch (240). The second snap fastener protrusion is located away from the first side of the snap fastener body (210) and close to the third side of the snap fastener body (210). A snap fastener notch (230) is formed at the junction of the second snap fastener protrusion and the third side of the snap fastener body (210).

13. The operating mechanism (7) of the magnetically controlled switch according to any one of claims 4-9, characterized in that: The latch (300) includes two latch mounting portions (310) spaced apart along a third direction and a latch connecting portion (320) connected between the ends of the two latch mounting portions (310) away from the traction rod (500). The latch connecting portion (320) extends toward the traction rod (500) and has a boss structure serving as a latch buckle portion (330). The middle side of the two latch mounting portions (310) is provided with the rotation center of the latch (300). The ends of the two latch mounting portions (310) near the traction rod (500) respectively extend toward the traction rod (500) and have latch limiting portions (340).

14. The operating mechanism (7) of the magnetically controlled switch according to claim 6 or 10, characterized in that: The moving contact (3) is set on the rotating shaft (2), the rotating shaft (2) is rotatably set, and the rotation center of the rotating shaft (2) is set along a third direction; the center of rotation of the transmission component (400) is provided in the middle of the transmission component (400), one end of the transmission component (400) is connected to the drive shaft (130), and the other end of the transmission component (400) is connected to the rotating shaft (2) through the connecting rod (403). One end of the connecting rod (403) and the transmission component (400) are hinged on the same transmission shaft (402), and the other end of the connecting rod (403) is hinged to the rotating shaft (2). The hinge between the connecting rod (403) and the rotating shaft (2) is eccentrically set with respect to the rotation center of the rotating shaft (2).

15. The operating mechanism (7) of the magnetically controlled switch according to claim 1, characterized in that: It also includes a mechanism bracket (600), which includes a first bracket (610) and a second bracket (620) connected together. The jump buckle (200), the lock buckle (300), and the transmission component (400) are rotatably disposed in the first bracket (610). The traction rod (500) is rotatably disposed on the side of the first bracket (610) away from the second bracket (620). The electromagnetic system (100) is installed in the second bracket (620).

16. The operating mechanism (7) of the magnetically controlled switch according to claim 6, characterized in that: It also includes a handle assembly (700), which includes a connected closing handle (710) and a rocker arm (720). The rocker arm (720) is rotatably configured, and the rotation center of the rocker arm (720) is set along a third direction. The rocker arm (720) is connected to the transmission component (400) for transmission. By driving the transmission component (400) to rotate, the moving contact (3) and the stationary contact (4) are driven to contact.

17. The operating mechanism (7) of the magnetically controlled switch according to claim 16, characterized in that: The rotation centers of the rocker arm (720) and the transmission component (400) are coincident. The rocker arm (720) and the transmission component (400) are rotatably connected to the first rotating shaft (611) and are respectively hinged to the same transmission shaft (402) for driving the moving contact (3).

18. The operating mechanism (7) of the magnetically controlled switch according to claim 1, characterized in that: It also includes a trip button (800), and the traction rod (500) is provided with a traction rod trigger part (520) corresponding to the trip button (800). When the trip button (800) acts on the traction rod trigger part (520), it drives the traction rod (500) to rotate and release the locking latch (300) from the limit.

19. A magnetically controlled switch, comprising a control system, a contact system, a conductive system, and a trip unit (5), wherein the contact system includes at least one moving contact (3), and the conductive system includes a stationary contact (4) disposed opposite to the moving contact (3), characterized in that: The magnetic switch also includes an operating mechanism (7) of the magnetic switch as described in any one of claims 1-18. When the control system sends a closing signal, the coil assembly of the operating mechanism (7) is energized; when the control system sends a trip signal, the trip unit (5) is triggered to act on the traction rod (500) of the operating mechanism (7).

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