relay

Abstract

The application relates to a relay. The relay comprises a base, a magnetic circuit system, a static contact assembly and a contact system, the base comprises a shell body and a first partition, the first partition separates the shell body to form a magnetic circuit cavity and a contact cavity which are independent of each other in a first direction, and the first partition is provided with a linkage channel which communicates the magnetic circuit cavity and the contact cavity and is arranged to extend along a second direction; and the static contact assembly and the contact system are assembled in the contact cavity. The magnetic circuit system comprises an electromagnet core assembly and a transmission assembly, the electromagnet core assembly is configured to drive the transmission assembly to move along the second direction in response to an input signal; the contact system comprises a moving piece and a dynamic contact assembly, the moving piece is movably assembled in a dynamic spring assembly part along the second direction, the dynamic contact assembly is assembled in the moving piece, and the moving piece is configured to be driven by the transmission assembly. Thus, the relay has excellent performances of high safety, low temperature rise and high-speed movement while realizing compact structure.

Description

Technical Field

[0001] This application relates to the field of relay technology, and in particular to a relay. Background Technology

[0002] Relays are automatic switching elements with isolation functions, widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronic equipment, and are one of the most important control elements.

[0003] With the rapid development of AI, computing power has increased significantly, leading to a substantial increase in power density, from the original 3.2kW to 8kW or even 12kW. The stored electrical energy is primarily used for continuous power supply during grid outages. While the time required for switching to energy storage devices during power outages in buildings or residences may not be critical, and the voltage and current are typically low, the power supply for data center servers requires uninterruptible power supply. Therefore, during grid outages, a rapid and seamless switch to backup power (energy storage devices) is necessary to ensure the integrity and security of stored data.

[0004] Server power supplies may be AC ​​or DC depending on requirements. Traditional relays used in the server power industry (such as UPS and ATS) are mostly only suitable for switching AC loads. These types of relays typically have the following characteristics: the contact system mostly uses rigid static springs and flexible moving springs, with the moving spring and push block connected in a movable manner. The moving spring's swing amplitude is limited by material properties, resulting in a typically small contact gap and no forced guiding function. Therefore, in practical applications, multiple relays of this type are often connected in series to achieve a larger contact gap. However, due to poor synchronization and long operating times after series connection, the server may experience a momentary power outage during the switching process between the two power supplies, leading to data loss. Furthermore, the lack of forced guiding function poses a risk of short circuit between the main and backup power supplies in the event of a fault, potentially causing the power supply to burn out, resulting in insufficient safety. Utility Model Content

[0005] Therefore, it is necessary to provide a relay to address the aforementioned problems.

[0006] A relay includes:

[0007] The base includes a shell and a first partition. The first partition is disposed inside the shell to divide the shell into a magnetic circuit cavity and a contact cavity that are independent of each other in a first direction. The first partition is provided with a linkage channel that connects the magnetic circuit cavity and the contact cavity and extends along a second direction. The contact cavity is provided with a static spring fixing part and a dynamic spring assembly part.

[0008] The magnetic circuit system is assembled in the magnetic circuit cavity;

[0009] A static contact assembly is assembled on the static spring fixing part;

[0010] A contact system is movably mounted on the movable spring assembly in the second direction;

[0011] The magnetic circuit system is connected to the contact system via a linkage channel. The magnetic circuit system is configured to drive the contact system to move in a second direction in response to an input signal, so that the contact system selectively switches contact with the stationary contact component.

[0012] The first direction is set perpendicular to the second direction.

[0013] In one embodiment, the magnetic circuit system includes an electromagnet core assembly and a transmission assembly. The electromagnet core assembly is assembled in the magnetic circuit cavity, and the transmission assembly is movably assembled in the electromagnet core assembly. The transmission assembly is connected to the contact system via a linkage channel. The electromagnet core assembly is configured to drive the transmission assembly to move in a second direction in response to an input signal.

[0014] In one embodiment, the electromagnet core assembly includes:

[0015] The yoke has a magnetic circuit space inside it.

[0016] Two permanent magnets are arranged at intervals along a second direction on the yoke and fixed to the yoke. The permanent magnets have a first magnetic pole surface and a second magnetic pole surface arranged opposite to each other. The two second magnetic pole surfaces are arranged opposite each other and have the same polarity.

[0017] Two coil assemblies are disposed in a magnetic circuit space and spaced apart along a second direction. Each coil assembly includes a wire frame, a coil unit, and a wiring unit. The coil unit is disposed on the wire frame cylinder wall of the wire frame and has a coil space inside. The wiring unit is disposed on the wire frame end plate of the wire frame. The coil unit is connected to the wiring unit, and the wiring units of the two coil assemblies are electrically connected. One of the wiring units is used to be electrically connected to a first power source to receive an input signal.

[0018] The transmission assembly is movably mounted in the space between two adjacent coils, and the coil assembly is configured to drive the transmission assembly to move between the two permanent magnets in response to an input signal.

[0019] In one embodiment, the base further includes a second partition disposed within the magnetic circuit cavity to divide the magnetic circuit cavity into a first sub-magnetic circuit cavity and a second sub-magnetic circuit cavity that are independent of each other in a second direction. The yoke is assembled within the first sub-magnetic circuit cavity, and the outer peripheral surface of the yoke abuts against the inner peripheral wall of the first sub-magnetic circuit cavity. The electromagnet core assembly further includes a lead-out unit, a wiring unit disposed on the base and extending along the first direction, and the wiring unit is electrically connected to the wiring unit extending into the second sub-magnetic circuit cavity and to the first power supply.

[0020] In one embodiment, the electromagnet core assembly further includes two striker structures, each permanent magnet being fixedly mounted to the yoke via one striker structure; wherein the striker structure includes:

[0021] The connecting section connects the permanent magnet to the yoke.

[0022] The impact section protrudes from the side of the permanent magnet opposite to the connecting section and can collide with the transmission component, thus preventing the transmission component from colliding with the permanent magnet.

[0023] In one embodiment, the permanent magnet has a first pinhole through which the connecting section passes, and the diameter of the impact section is larger than the diameter of the first pinhole.

[0024] In one embodiment, the yoke has a second pinhole opposite to the first pinhole;

[0025] The connecting section includes a first through part, a second through part, and a riveting part connected in sequence. The first through part passes through the first pin hole, the second through part passes through the second pin hole, and the riveting part is located on the side of the yoke away from the permanent magnet and can be deformed to form an upsetting head. The upsetting head cooperates with the impact section to connect the permanent magnet and the yoke together.

[0026] In one embodiment, each wiring unit includes at least two wiring conductors, a plurality of wiring conductors are spaced apart along a third direction, and each wiring conductor extends along a second direction. In the two wiring conductors connected in the second direction, one end of one of the wiring conductors is provided with a connector, the connector being connected to the other wiring conductor. The connector includes:

[0027] The components include a mating section and a misaligned section. The mating section is arranged parallel to a wiring conductor, and the misaligned section is connected between the wiring conductor and the mating section. The mating section is also mated to the side surface of another wiring conductor.

[0028] In one embodiment, the transmission assembly includes:

[0029] Iron core;

[0030] A contact sleeve having a sleeve cavity extending in a second direction, the contact sleeve being sleeved and fitted onto the outside of an iron core based on the sleeve cavity; wherein the contact sleeve is configured to be movably fitted into a coil assembly; at least one of the outer wall of the contact sleeve and the inner wall of the coil assembly is provided with a plurality of contact protrusions.

[0031] The push arm is connected to the contact sleeve and is configured to be connected to the contact system drive.

[0032] In one embodiment, the contact system includes a movable member and a movable contact assembly. The movable member is movably mounted to a movable spring assembly in a second direction, and the movable contact assembly is mounted to the movable member. The movable member is drively connected to a magnetic circuit system and is configured to be driven by the magnetic circuit system.

[0033] In one embodiment, an inner cover plate fixing part is further provided in the contact cavity; and

[0034] The relay also includes: an inner cover plate, which is mounted on an inner cover plate fixing part and makes limiting contact with the moving part. The inner cover plate is configured to limit the movement of the moving part in a direction away from the contact cavity.

[0035] In one embodiment, the relay further includes:

[0036] The outer cover plate is installed in the outer cover plate fixing part in the contact cavity.

[0037] In one embodiment, the outer cover plate makes limiting contact with the movable member, and the outer cover plate is configured to restrict movement of the movable member in a direction away from the contact cavity; and / or,

[0038] The outer cover plate has several holes for the static spring to extend out.

[0039] In one embodiment, the movable element has a mounting hole; and

[0040] The moving contact assembly is mounted on the moving part by a locking member. The locking member includes a pressure cover and multiple elastic arms. The pressure cover is located outside the moving part and abuts against the moving part. The elastic arms pass through the mounting holes and can hold the moving part tightly by their own rebound force to lock it, so that the pressure cover can press the moving contact assembly onto the moving part.

[0041] In one embodiment, the moving contact assembly includes a connected moving spring and a receiving member, with a plurality of moving contacts provided on the side of the moving spring facing away from the receiving member.

[0042] The movable part has a moving spring mounting cavity, which includes a through hole and a groove. The through hole is used for the moving spring to pass through, and the cover can press the receiving part into the groove through the slot of the groove.

[0043] In one embodiment, the relay further includes: a monitoring static contact assembly, wherein a monitoring fixing part is disposed in the contact cavity, and the monitoring static contact assembly is assembled in the monitoring fixing part; wherein the monitoring static contact assembly includes a first monitoring element and a second monitoring element, and the first monitoring element and the second monitoring element overlap and contact in a second direction;

[0044] When the contact system moves in the second direction, the contact system is configured to drive the first monitoring element to move to separate from the second monitoring element.

[0045] In one embodiment, the relay further includes: an outer housing, an encapsulation space provided inside the outer housing, the encapsulation space completely accommodating the base, and when the base is disposed within the encapsulation space, the outer housing covers the magnetic circuit cavity.

[0046] The relay described above, through the base's partition structure (i.e., the first partition), the precise design of the linkage channel, the coordinated operation of the magnetic circuit system and the contact system, and the reasonable layout in all directions, enables the relay to achieve a compact structure while possessing excellent performance in terms of high safety, low temperature rise, and high-speed movement, thus adapting to application scenarios with strict requirements on relay size, safety, and response speed. Attached Figure Description

[0047] Figure 1 This is an exploded view of a relay according to an embodiment of this application from one perspective.

[0048] Figure 2 This is an exploded view of a relay according to an embodiment of this application from another perspective.

[0049] Figure 3 This is a cross-sectional view of a relay according to an embodiment of this application.

[0050] Figure 4 This is a perspective view of a base according to an embodiment of the present application from one angle.

[0051] Figure 5 This is a perspective view of the base according to an embodiment of the present application from another angle.

[0052] Figure 6 This is a schematic diagram of the assembly of the yoke and wire frame according to an embodiment of this application.

[0053] Figure 7 This is an assembly diagram of the wiring unit, lead-out unit, and wire frame according to an embodiment of this application.

[0054] Figure 8 This is a schematic diagram of the structure of the first yoke body according to an embodiment of this application.

[0055] Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0056] Figure 10 This is a schematic diagram of the structure of the second yoke body according to an embodiment of this application.

[0057] Figure 11 This is a schematic diagram of a wireframe structure according to an embodiment of this application.

[0058] Figure 12 This is a schematic diagram of the structure of a connector according to an embodiment of this application.

[0059] Figure 13 This is a cross-sectional view of a magnetic circuit system according to an embodiment of this application.

[0060] Figure 14 This is a schematic diagram of the assembly of a permanent magnet and a yoke according to an embodiment of this application.

[0061] Figure 15 This is a perspective view of a firing pin structure according to an embodiment of this application.

[0062] Figure 16 This is a perspective view of a permanent magnet according to an embodiment of this application.

[0063] Figure 17 This is an assembly diagram of a transmission component and a moving part according to an embodiment of this application.

[0064] Figure 18 This is a perspective view of a transmission assembly according to an embodiment of this application.

[0065] Figure 19 This is a side view of a transmission assembly according to an embodiment of this application.

[0066] Figure 20 This is a front view of a transmission assembly according to an embodiment of this application.

[0067] Figure 21 This is a schematic diagram of the assembly of a movable member and a dynamic contact assembly according to an embodiment of this application.

[0068] Figure 22 for Figure 21 Enlarged view of section B in the middle.

[0069] Figure 23 This is an assembly diagram of a moving member, a moving contact assembly, and a locking member according to an embodiment of this application.

[0070] Figure 24 This is a perspective view of a movable component according to an embodiment of this application.

[0071] Figure 25 This is a perspective view of a moving contact assembly according to an embodiment of this application.

[0072] Figure 26 This is a perspective view of a compression spring sheet according to an embodiment of this application.

[0073] Figure 27 This is a perspective view of an inner cover plate according to an embodiment of this application.

[0074] Figure 28 This is a perspective view of an outer cover plate according to an embodiment of this application.

[0075] Figure label:

[0076] 1000. Relay; 1. Base; 101. Magnetic circuit cavity; 101a. First sub-magnetic circuit cavity; 101b. Second sub-magnetic circuit cavity; 102. Contact cavity; 11. Housing; 12. First partition; 120. Linkage channel; 13. Static spring fixing part; 14. Dynamic spring assembly part; 15. Second partition; 16. Inner cover plate fixing part; 17. Sliding rail; 171. First rail groove; 172. First rail wall; 18. Outer cover plate fixing part; 19. Monitoring fixing part; 2. Magnetic circuit system; 21. Electromagnetic core assembly; 211. Yoke; 2110. Magnetic circuit space; 2111. First yoke body; 21111. Riveting hole; 2111a. Inner hole; 2111b. Embedded structure; 21112. Recessed area Domain; 21113, Abutting foot; 21114, First plug-in structure; 2112, Second yoke body; 21121, Rivet joint; 21122, Second pin hole; 212, Permanent magnet; 2120, First pin hole; 213, Coil assembly; 2130, Interval limiting distance; 2131, Wire frame; 21311, Wire frame end plate; 21312, Wire frame cylinder wall; 21313, Second plug-in structure; 2132, Coil unit; 214, Wiring unit; 2141, Wiring guide; 2142, Connector; 2142a, Fitting section; 2142b, Misalignment section; 215, Lead-out unit; 216, Striking pin structure; 2161, Connecting section; 21611, First through-hole; 21612, Second through-hole; 21613, Riveting part; 2162, Impact section; 22, Transmission assembly; 221, Iron core; 2210, Groove; 222, Contact sleeve; 2221, Contact protrusion; 2221a, First constant protrusion section; 2221b, Second constant protrusion section; 2221c, First gradual protrusion section; 2221d, Second gradual protrusion section; 223, Push arm; 224, Structural reinforcement part; 225, Fixing ring; 3, Static contact assembly; 4, Contact system; 41, Moving part; 411, Main body section; 4111, Lateral protrusion; 412, Mounting section; 4121, Dynamic spring mounting cavity; 4121a, Through hole; 4121b, Groove; 4122, Stop; 4123, Mounting hole; 413, Limiting protrusion ; 414, Second limiting part; 415, Separating arm; 42, Moving contact assembly; 421, Moving spring; 422, Receiving part; 423, Compression spring; 4231, Compression spring center part; 42310, Compression spring shaft hole; 4232, Compression spring extension part; 4233, Bending abutment part; 424, Mandrel; 43, Locking part; 431, Pressure cover; 4311, First limiting part; 432, Elastic arm; 4321, Claw; 5, Inner cover plate; 51, Center plate area; 52, Extension plate area; 53, Inner cover plate fixing post; 531, First guide section; 6, Outer cover plate; 61, Static spring lead-out hole; 62, Limiting rail; 621, Second rail groove; 622, Second rail wall; 63, Outer cover plate fixing post; 631, Second guide section;7. Monitoring static contact assembly; 71. First monitoring component; 72. Second monitoring component; 8. Outer housing. Detailed Implementation

[0077] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0078] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0079] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0081] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0082] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0083] It should be noted that, in order to make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the first direction of this application can be understood as the height direction of the relay (as shown in the figure, direction Z); the second direction of this application can be understood as the length direction of the relay (as shown in the figure, direction X); and the third direction of this application can be understood as the width direction of the relay (as shown in the figure, direction Y). Furthermore, in the following description, the height direction will be used to represent the first direction, the length direction will be used to represent the second direction, and the width direction will be used to represent the third direction.

[0084] Combination Figures 1 to 3 As shown, the relay 1000 according to this application includes a base 1, a magnetic circuit system 2, a static contact assembly 3, and a contact system 4. (In conjunction with...) Figures 3 to 5As shown, the base 1 includes a housing 11 and a first partition 12. The housing 11 is annular in shape, and the first partition 12 is disposed inside the housing 11 to divide the space inside the housing 11 into two independent magnetic circuit cavities 101 and contact cavities 102 in the axial direction of the housing 11 (i.e., the height direction of the relay 1000). The first partition 12 also includes a linkage channel 120, which is constructed as a strip-shaped hole. The central axis of the linkage channel 120 is parallel to the height direction of the relay 1000, and the major axis of the linkage channel 120 is parallel to the length direction of the relay 1000 (i.e., the length direction of the linkage channel 120 is consistent with the length direction of the relay 1000). The minor axis of the linkage channel 120 is parallel to the length direction of the relay 1000 (i.e., the width direction of the linkage channel 120 is consistent with the width direction of the relay 1000).

[0085] The contact cavity 102 is provided with a stationary spring fixing part 13 and a movable spring assembly part 14. The stationary spring fixing part 13 is mainly used to fix and assemble the stationary contact assembly 3 in the contact cavity 102 of the base 1, while the movable spring assembly part 14 is mainly used to movably assemble the movable contact assembly 42 in the contact cavity 102 of the base 1. For example, the stationary spring fixing part 13 can be configured as a fixing groove in the contact cavity 102, and the number of stationary spring fixing parts 13 can be configured to be several, with each stationary spring fixing part 13 configured to install one stationary contact assembly 3. The movable spring assembly part 14 can be configured as a sliding groove in the contact cavity 102, and the moving member 41 is slidably assembled in the sliding groove.

[0086] Regarding contact system 4, see [link / reference]. Figures 21 to 25 As shown, the contact system 4 includes a movable component 41 and a moving contact assembly 42. When the movable component 41 is assembled to the moving spring assembly 14, it can move along the length of the relay 1000 within the contact cavity 102. The moving contact assembly 42 is assembled to the movable component 41. When the movable component 41 moves along the length of the relay 1000, the moving contact assembly 42 moves along the length of the relay 1000 under the drive of the movable component 41. During the movement, the moving contact assembly 42 can engage and disengage with the stationary contacts of the corresponding stationary contact assembly 3, enabling rapid switching of the relay 1000 contacts. This allows the relay 1000 to be used in electrical appliances requiring high computing power, such as AI servers.

[0087] The magnetic circuit system 2 includes an electromagnet core assembly 21 and a transmission assembly 22. The transmission assembly 22 is movably mounted on the electromagnet core assembly 21, which is mounted in the magnetic circuit cavity 101. The electromagnet core assembly 21 is configured to drive the transmission assembly 22 to move along the length of the relay 1000 in response to an input signal. It should be noted that a portion of the structure of the transmission assembly 22 is adapted to extend into the contact cavity 102 via a linkage channel 120 to connect with the moving member 41. When the electromagnet core assembly 21 is configured to drive the transmission assembly 22 to move along the length of the relay 1000 in response to an input signal, the moving member 41 moves along the length of the relay 1000 under the driving action of the transmission assembly 22. Specifically, when the electromagnet core assembly 21 drives the transmission assembly 22 to move forward or backward along the length of the relay 1000 in response to an input signal, the moving member 41 will drive the contact assembly 42 to move forward or backward along the length of the relay 1000.

[0088] Regarding the relay 1000 of this application, from the structure of the base 1, the first partition 12 inside the housing 11 divides the internal space along the height direction into independent magnetic circuit cavity 101 and contact cavity 102. This layered layout achieves physical isolation between the magnetic circuit system 2 and the contact system 4. Since the magnetic circuit system 2 generates magnetic field interference during operation, and the contact system 4, as the core part of the conductive circuit, has extremely high requirements for insulation performance, the independent cavity design of the two can avoid magnetic field interference on the contact signal, and at the same time reduce the transfer of heat generated by the current in the contact system 4 to the magnetic circuit system 2. In addition, this separation method does not require additional isolation components, and significantly reduces the overall volume while ensuring the isolation effect, making the relay 1000 structure more compact.

[0089] The linkage channel 120, located in the first separator 12, is crucial for power transmission between the magnetic circuit system 2 and the contact system 4. The strip-shaped perforation structure of the linkage channel 120, extending along its length, perfectly matches the moving direction of the transmission assembly 22 along its length. This directional consistency ensures that the transmission assembly 22 does not experience additional frictional resistance or stress due to an angle between the channel direction and the moving direction during movement, significantly reducing energy loss during power transmission. Simultaneously, the inner wall of the linkage channel 120 precisely fits the outer wall of the transmission assembly 22. As the transmission assembly 22 moves along its length, the inner wall of the channel provides bidirectional lateral constraint, effectively guiding the transmission assembly 22. This guiding effect strictly limits the movement trajectory of the transmission assembly 22, preventing it from shifting left or right or swaying due to inertia or external vibration during high-speed movement, significantly improving the stability of the transmission process.

[0090] The movable assembly of the electromagnet core assembly 21 and the transmission assembly 22 in the magnetic circuit system 2, combined with the design of driving the transmission assembly 22 to move along the length direction with the input signal, enables the magnetic circuit system 2 to respond quickly to control signals. When the input signal is triggered, the electromagnet core assembly 21 can quickly drive the transmission assembly 22 to move, and the direct connection between the transmission assembly 22 and the moving part 41 further shortens the power transmission path and reduces response delay.

[0091] The design of the movable component 41 in the contact system 4, which is movably mounted on the moving spring assembly 14 along its length, provides a stable motion track for the moving contact assembly 42. As the moving contact assembly 42 moves along its length with the movable component 41, its motion trajectory is strictly limited, ensuring precise and controllable contact position with the stationary contact assembly 3 and avoiding poor contact due to motion deviation. Simultaneously, the stationary contact assembly 3 is mounted on the stationary spring fixing part 13, corresponding to the motion trajectory of the moving contact assembly 42, further improving the reliability of the contact.

[0092] In summary, this application, through the partition structure of the base 1, the precise design of the linkage channel 120, the coordinated cooperation of the magnetic circuit system 2 and the contact system 4, and the reasonable layout in all directions, enables the relay 1000 to achieve a compact structure while possessing excellent performance in terms of high safety, low temperature rise, and high-speed movement, thus adapting to application scenarios with strict requirements on the size, safety, and response speed of the relay 1000.

[0093] Combination Figure 3 , Figure 6 and Figure 13 As shown, in some embodiments of this application, the electromagnet core assembly 21 includes a yoke 211, two permanent magnets 212, and two coil assemblies 213. A magnetic circuit space 2110 is provided within the yoke 211, and both coil assemblies 213 are disposed within the magnetic circuit space 2110 and spaced apart along the length of the relay 1000. Wherein, combined with Figure 7 and Figure 13As shown, each coil assembly 213 includes a wire frame 2131, a coil unit 2132, and a wiring unit 214. The coil unit 2132 is disposed on the wire frame cylinder wall 21312 of the wire frame 2131, and has a coil space inside. The wiring unit 214 is disposed on the wire frame end plate 21311 of the wire frame 2131. The coil unit 2132 is connected to the wiring unit 214, and the wiring units 214 of the two coil assemblies 213 are electrically connected. One of the wiring units 214 is used to be electrically connected to a first power source to receive an input signal. The transmission assembly 22 is movably mounted in two adjacent coil spaces, and the coil assembly 213 is configured to drive the transmission assembly 22 to move between the two permanent magnets 212 in response to the input signal. It should also be noted that: two permanent magnets 212 are arranged on the yoke 211 along the length direction of the yoke 211 (i.e. the length direction of the relay 1000), and the two permanent magnets 212 are fixed to the yoke 211. The permanent magnets 212 have a first magnetic pole surface and a second magnetic pole surface arranged opposite to each other. The two second magnetic pole surfaces are arranged opposite each other, and the polarities of the two second magnetic pole surfaces are the same.

[0094] For the relay 1000 of this application, a closed magnetic circuit space 2110 is formed inside the yoke 211, providing a low magnetic resistance path for stable magnetic field conduction. Two permanent magnets 212 are fixed inside the yoke 211 along the length of the relay 1000. Their opposing first magnetic pole surfaces are in close contact with the inner ring surface of the yoke 211, ensuring that the magnetic field generated by the permanent magnets 212 can form a complete loop through the yoke 211. The opposing second magnetic pole surfaces have the same polarity (e.g., both are N poles or both are S poles), forming a symmetrical magnetic field distribution between the two permanent magnets 212. This magnetic pole configuration creates a repulsive magnetic field environment in the area between the permanent magnets 212, providing a basis for the bidirectional movement of the transmission component 22.

[0095] Two coil assemblies 213 are arranged at intervals along the length of the magnetic circuit space 2110, forming a nested layout with the permanent magnet 212. The wire frame 2131 of each coil assembly 213 provides a stable winding carrier for the coil unit 2132 through an integrated structure of the wire frame cylindrical wall 21312 and the wire frame end plate 21311 (specifically, each wire frame 2131 includes two wire frame end plates 21311 and one wire frame cylindrical wall 21312; the two wire frame end plates 21311 are respectively located at both ends of the wire frame cylindrical wall 21312, and the coil is sleeved on the wire frame cylindrical wall 21312). The coil unit 2132 is wound around the wire frame cylindrical wall 21312, forming an internal coil space. The moving part of the transmission assembly 22 passes through the two adjacent coil spaces, allowing the magnetic field generated by the coil to directly act on the transmission assembly 22. The wiring units 214 of the two coil assemblies 213 form a parallel circuit through electrical connection. One of the wiring units 214 is connected to the first power supply to receive the input signal. This circuit design ensures that the two coil units 2132 can respond to the input signal synchronously and generate magnetic fields with the same direction.

[0096] During operation, when an input signal (such as current) is transmitted to the coil assembly 213 through the wiring unit 214, the coil unit 2132 immediately generates an electromagnetic field. The direction of its magnetic field interacts specifically with the direction of the magnetic field of the permanent magnet 212: for the coil unit 2132 near one end of the transmission assembly 22, the magnetic field it generates is opposite to the direction of the magnetic field of the corresponding permanent magnet 212, thereby weakening the attraction of the permanent magnet 212 on that side to the transmission assembly 22; while the magnetic field generated by the coil unit 2132 on the other side is in the same direction as the magnetic field of the corresponding permanent magnet 212, further enhancing the attraction of the permanent magnet 212 on that side to the transmission assembly 22. This "one decreasing and one increasing" magnetic field resultant force enables the transmission assembly 22 to obtain a driving force along the length direction between the two permanent magnets 212, realizing rapid movement from one side to the other.

[0097] It is worth noting that the movable assembly method of the transmission component 22 within the space of the two coils ensures that the magnetic field energy generated by the coils is concentrated on the effective force-bearing area of ​​the transmission component 22, reducing energy loss caused by magnetic field leakage. At the same time, the precise matching of the spacing between the two coil components 213 and the length parameter of the permanent magnet 212 ensures that the transmission component 22 is always in the optimal range of magnetic field strength change during movement, guaranteeing the continuous stability of the driving force.

[0098] The advantages of this structural design are reflected in three aspects: First, the synergistic magnetic field effect of the permanent magnet 212 and the coil assembly 213 significantly increases the moving speed of the transmission assembly 22 as the input signal strength increases, achieving high-speed response; Second, the symmetrically distributed permanent magnet 212 and coil layout ensure that the transmission assembly 22 is subjected to balanced force during reciprocating motion, avoiding jamming or deviation caused by excessively strong magnetic field on one side; Third, the closed magnetic circuit space 2110 formed by the yoke 211 reduces external magnetic field interference, improves the anti-interference capability of the magnetic circuit system 2, and provides a stable environment for the precise movement of the transmission assembly 22.

[0099] In summary, the electromagnet core assembly 21, through its ingenious magnetic circuit design and circuit layout, efficiently converts the input signal into the mechanical motion of the transmission assembly 22. This not only achieves rapid driving along the length direction but also ensures the stability and reliability of the motion process, providing core support for the high-speed switching and long-life operation of the relay 1000.

[0100] See Figure 6 , Figures 8 to 10 As shown, in some embodiments of this application, the yoke 211 includes two first yoke 211 bodies and two second yoke 211 bodies. The two first yoke 211 bodies are spaced apart in the width direction of the relay 1000 (i.e., the width direction of the yoke 211 and the electromagnet core assembly 21). The two second yoke 211 bodies are connected between the two first yoke 211 bodies and are spaced apart in the length direction of the relay 1000, thus defining a magnetic circuit space 2110 within the yoke 211. Each first yoke 211 body has two riveting holes, which are spaced apart in the length direction of the relay 1000 (i.e., the length direction of the first yoke 211 bodies), and each riveting hole includes at least one riveting hole 21111. The second yoke 211 body has two rivet heads, which are located at both ends of the second yoke 211 body in the width direction (i.e. the length direction of the second yoke 211 body) of the relay 1000, and each rivet head includes at least one rivet joint 21121. The number of rivet holes 21111 and rivet joints 21121 are configured to be equal, so that the rivet holes 21111 and rivet joints 21121 correspond one-to-one for riveting.

[0101] Furthermore, the first yoke 211 also has two first plug-in portions. Along the length of the relay 1000, the two first plug-in portions are located between two rivet holes, and are arranged sequentially along the length of the relay 1000. The wire frame 2131 also has two second plug-in portions. Along the width of the relay 1000 (i.e., the width of the wire frame 2131), the two second plug-in portions are located on the left and right sides of the wire frame 2131, respectively, and the first plug-in portions and second plug-in portions are correspondingly plugged in and engaged. Specifically, in conjunction with... Figure 7 and Figure 11 As shown, in the width direction of the relay 1000 (i.e., in the length direction of the wire frame end plate 21311), at least one second plug-in structure 21313 is provided on each side of the wire frame end plate 21311. Thus, in each wire frame 2131, all the second plug-in structures 21313 located on the same side in the width direction form a group of second plug-in portions. And combined with... Figure 8 As shown, each first yoke 211 body is further provided with two sets of first insertion portions, and each set of first insertion portions includes at least one first insertion structure 21114, the first insertion structure 21114 and the second insertion structure 21313 are inserted and engaged in a one-to-one correspondence. For example, see Figure 7 and Figure 8 As shown, the first insertion structure 21114 is configured as an insertion hole, and the second insertion structure 21313 is configured as an insertion post, so that the first insertion structure 21114 is suitable for insertion and mating with the second insertion structure 21313.

[0102] For the electromagnet core assembly 21 of this application, during the assembly process, the operator only needs to move the two first yokes 211 towards each other in the width direction to simultaneously achieve the following key actions: all second yokes 211 are riveted and fixed to the first yokes 211 through rivet heads arranged in the width direction; at the same time, all wire frames 2131 are precisely inserted into the first insertion parts of the two first yokes 211 through second insertion parts symmetrically arranged in the width direction. This design completes the assembly of the electromagnet core assembly 21 in one go through synchronous assembly in a single direction, significantly shortening the assembly time of the electromagnet core assembly 21 and avoiding the cumbersome nature of traditional multi-step, multi-directional operations.

[0103] It should also be noted that during the pre-assembly of the first yoke 211 and the second yoke 211, the operator can achieve the positioning and assembly of the first yoke 211 and the second yoke 211 through the corresponding riveting holes 21111 and riveting heads 21121. This eliminates the need for the operator to calibrate the assembly positions of the first and second yokes 211 during the assembly process, thus facilitating rapid assembly of the yokes 211 and improving the assembly efficiency of the electromagnet core assembly 21. The first yoke 211 is provided with riveting holes, and the second yoke 211 is provided with riveting heads, allowing the first and second yokes 211 to be riveted together. This results in high stability for the yokes 211, thereby improving their reliability in use. Furthermore, since the wire frame 2131 is placed within the magnetic circuit space 2110, when the first yoke 211 body and the second yoke 211 body are fixed by riveting, the wire frame 2131 can resist the lateral compression deformation tendency of the second yoke 211 body on the first yoke 211 body during riveting, and at the same time provide a two-way reinforcement mechanism for the wire frame 2131. While improving assembly efficiency, it greatly enhances the rigidity and stability of the structure of the electromagnet core assembly 21.

[0104] In summary, the electromagnet core assembly 21 of this application achieves significant efficient assembly and structural reinforcement through the ingenious cooperation between the yoke 211 (which defines the magnetic circuit space 2110 by two spaced-apart first yoke 211 bodies and two connected second yoke 211 bodies) and the two wire frames 2131 placed in the magnetic circuit space 2110.

[0105] Combination Figure 6 ,as well as Figures 8 to 11 As shown, in some embodiments of this application, the number of riveting holes 21111 in each riveting portion is configured to be multiple, and the multiple riveting holes 21111 are arranged sequentially along a first direction; and the number of riveting joints 21121 in each riveting head is configured to be multiple, and the multiple riveting joints 21121 are arranged sequentially along the first direction. For example, combined with Figure 6 ,as well as Figures 8 to 11As shown, the number of riveting holes 21111 in each riveting section is configured to be two, and the number of riveting joints 21121 in each riveting head is correspondingly configured to be two. Thus, after the first yoke 211 body and the second yoke 211 body are assembled, two connection points are formed between them (one riveting joint 21121 and one riveting hole 21111 form one connection point). Based on this, the number of riveting holes 21111 in the riveting section is configured to be multiple, and the number of riveting joints 21121 in the riveting head is configured to be multiple, resulting in multiple connection points between the first yoke 211 body and the second yoke 211 body. This ensures high connection reliability between the connected first yoke 211 body and the second yoke 211 body, thereby improving the overall structural stability of the yoke 211.

[0106] Of course, this application is not limited to this. For example, the number of rivet holes 21111 in each rivet hole can be configured to one, three, four or five, and the number of rivet joints 21121 in each rivet head can also be configured to one, three, four or five, respectively.

[0107] It is important to understand that during the assembly of the first yoke 211 and the second yoke 211, the operator needs to insert the rivet head 21121 into the corresponding rivet hole 21111 to achieve pre-assembly of the first yoke 211 and the second yoke 211. Thus, during the pre-assembly of the first yoke 211 and the second yoke 211, the operator can achieve the positioning and assembly of the first yoke 211 and the second yoke 211 through the corresponding matching rivet holes 21111 and rivet head 21121. This eliminates the need for the operator to calibrate the assembly position of the first yoke 211 and the second yoke 211 during the assembly process, thereby facilitating rapid assembly of the yoke 211 and improving the assembly efficiency of the electromagnet core assembly 21.

[0108] Furthermore, after the corresponding riveting holes 21111 and riveting heads 21121 are riveted together, the riveting head 21121 is located inside the riveting hole 21111, and the outer peripheral wall of the riveting head 21121 is in contact with the inner peripheral wall of the riveting hole 21111, thus limiting the mutual positioning of the first yoke 211 body and the second yoke 211 body. In other words, after the first yoke 211 body and the second yoke 211 body are riveted together, the riveting head 21121 cannot move within the riveting hole 21111, thereby achieving the effect of limiting the mutual positioning of the first yoke 211 body and the second yoke 211 body. Specifically, the connected first yoke 211 body and second yoke 211 body mutually limit each other in three dimensions: length, width, and height, giving the connected first yoke 211 body and second yoke 211 body high connection reliability, which in turn helps to improve the overall structural stability of the yoke 211.

[0109] Combination Figure 6 ,as well as Figures 8 to 11 As shown, in some embodiments of this application, when the number of riveting holes 21111 in the riveting portion is configured to be multiple, the multiple riveting holes 21111 are arranged sequentially in the height direction of the first yoke 211 body, and adjacent two riveting holes 21111 are spaced apart. When the number of riveting joints 21121 in the riveting head is configured to be multiple, the multiple riveting joints 21121 are arranged sequentially in the height direction of the second yoke 211 body, and adjacent two riveting joints 21121 are spaced apart. In this way, relative torsion of the connected first yoke 211 body and second yoke 211 body is avoided to a certain extent, thereby improving the connection stability between the connected first yoke 211 body and second yoke 211 body, and thus helping to improve the overall structural stability of the yoke 211.

[0110] Combination Figure 6 ,as well as Figures 8 to 11 As shown, in some embodiments of this application, a plurality of riveting holes 21111 are arranged sequentially in the height direction of the first yoke 211 body, and all the riveting holes 21111 are arranged in a straight line; correspondingly, a plurality of riveting joints 21121 are arranged sequentially in the height direction of the second yoke 211 body, and all the riveting joints 21121 are arranged in a straight line, thus making the thickness of the second yoke 211 body smaller. Of course, this application is not limited to this; for example, for the plurality of riveting joints 21121 arranged sequentially in the height direction of the second yoke 211 body, adjacent two riveting joints 21121 are staggered in the thickness direction of the second yoke 211 body. Correspondingly, for the plurality of riveting joints 21121 arranged sequentially in the height direction of the first yoke 211 body, adjacent two riveting holes 21111 are staggered in the length direction of the first yoke 211 body.

[0111] Combination Figure 6 ,as well as Figures 8 to 11 As shown, in some embodiments of this application, the riveting hole 21111 includes an inner hole 2111a and at least one embedded structure 2111b. The embedded structure 2111b protrudes outward from the edge of the inner hole 2111a and communicates with the inner hole 2111a. It should be understood that, referring to... Figure 9 As shown, in one embodiment, the inner hole 2111a is constructed as a through hole, and the embedded structure 2111b is constructed as a through hole, so that the riveting hole 21111 as a whole is constructed as a through hole. Alternatively, in another embodiment, the inner hole 2111a is constructed as a through hole, and the embedded structure 2111b is constructed as a groove, so that the riveting hole 21111 as a whole is constructed as a countersunk hole.

[0112] When the rivet joint 21121 is riveted into the rivet hole 21111, for the deformed rivet hole 21111, part of the structure of the rivet hole 21111 is embedded into the inner structure 2111b through deformation, which increases the difficulty of the rivet joint 21121 rotating relative to the first yoke 211 body in the direction about the axis of the rivet hole 21111. In this way, relative torsion of the connected first yoke 211 body and second yoke 211 body is avoided to a certain extent, thereby improving the connection stability of the connected first yoke 211 body and second yoke 211 body, and thus helping to improve the overall structural stability of the yoke 211.

[0113] Combination Figures 3 to 6 As shown, in some embodiments of this application, the base 1 further includes a second separator 15, which is disposed within the magnetic circuit cavity 101 to divide the magnetic circuit cavity 101 into two independent sub-magnetic circuit cavities 101a and 101b, which are arranged sequentially along the length of the relay 1000. A yoke 211 is assembled within the first sub-magnetic circuit cavity 101a, and the outer peripheral surface of the yoke 211 abuts against the inner peripheral wall of the first sub-magnetic circuit cavity 101a. The electromagnet core assembly 21 also includes a lead-out unit 215, and a wiring unit 214 is disposed on the base 1 and extends along the height direction of the relay 1000. The wiring unit 214 connects to the first power supply and extends into the second sub-magnetic circuit cavity 101b.

[0114] Combination Figures 3 to 6 As shown, the design of the second partition 15 of the base 1 further optimizes the space utilization and functional zoning of the magnetic circuit cavity 101. Through structured separation, it achieves physical isolation between the core components of the magnetic circuit and the electrical connection components, providing multiple guarantees for the high safety and structural stability of the relay 1000. The second partition 15 divides the magnetic circuit cavity 101 into a first sub-magnetic circuit cavity 101a and a second sub-magnetic circuit cavity 101b, arranged sequentially along the length of the relay 1000. This zoning design allows for the orderly arrangement of the functional components and electrical connection components of the magnetic circuit system 2: the first sub-magnetic circuit cavity 101a, as the core area of ​​the magnetic circuit, is specifically used to accommodate the yoke 211. The tight contact between the inner peripheral wall of the first sub-magnetic circuit cavity 101a and the outer peripheral surface of the yoke 211 limits the yoke 211 to prevent movement. The second sub-magnetic circuit cavity 101b, as the electrical connection area, provides independent space for the arrangement of the lead-out unit 215 and the wiring unit 214. The columnar structure design of the wiring unit 214 extending along the height direction of the relay 1000 shortens the connection path with the first power supply and reduces redundant wiring. On the other hand, the vertically extending shape avoids the strong magnetic field region generated by the yoke 211 in the first sub-magnetic circuit cavity 101a, reducing electromagnetic induction interference to the power supply signal.

[0115] It is worth noting that the synergistic effect of the second separator 15 and the first separator 12 further enhances the safety of the overall structure. The first separator 12 achieves high and low voltage isolation between the magnetic circuit system 2 and the contact system 4, while the second separator 15 achieves isolation between the strong magnetic components and the electrical connection components within the magnetic circuit system 2. This "double isolation" design significantly improves the insulation performance of the relay 1000.

[0116] In summary, the second separator 15, through multiple functions such as functional zoning optimization, structural constraint enhancement, and electromagnetic isolation improvement, enables the relay 1000 to maintain a compact design while further improving its operational stability, safety, and assembly efficiency, laying a solid foundation for its application in the field of high-precision control.

[0117] Combination Figure 7 and Figure 12 As shown, in some embodiments of this application, each wiring unit 214 includes at least two wiring conductors 2141. Multiple wiring conductors 2141 are spaced apart along the width direction of the relay 1000, and each wiring conductor 2141 extends along the length direction of the relay 1000. In the two wiring conductors 2141 connected along the length direction of the relay 1000, one of the wiring conductors 2141 has a connector 2142 at its end, and the connector 2142 is connected to the other wiring conductor 2141. See also... Figure 12 As shown, the connector 2142 includes a mating section 2142a and a misaligned section 2142b. The mating section 2142a is arranged parallel to the wiring conductor 2141 to which the connector 2142 is connected, and the misaligned section 2142b is connected between the wiring conductor 2141 and the mating section 2142a. Furthermore, the mating section 2142a is also mated to the side surface of another wiring conductor 2141. This achieves the effect of connecting two adjacent wiring conductors 2141 along the length of the relay 1000. This significantly increases the effective contact area and welding area between the two adjacent wiring conductors 2141. This not only greatly improves the mechanical strength and reliability of the welded connection and reduces the risk of incomplete soldering or desoldering, but also provides a larger conductive cross-sectional area, ensuring the stability and low impedance of current conduction between adjacent wiring conductors 2141, thereby ultimately improving the electrical performance and long-term operational reliability of the relay 1000.

[0118] Combination Figure 7 and Figure 12As shown, all wiring conductors 2141 in the wiring unit 214 have a connector 2142 at the same end. Among the multiple connectors 2142 connected to the same wiring unit 214, the mating sections 2142a of two adjacent connectors 2142 are located on opposite sides of the wiring conductor 2141 to which they are connected, or the mating sections 2142a of two adjacent connectors 2142 are located on the same side of the wiring conductor 2141 to which they are connected. Exemplarily, in some embodiments of this application, such as... Figure 12 As shown, in the width direction, the mating section 2142a of the connector body 2142 of the wiring guide 2141 connected to the left side is located on the right side of the wiring guide 2141, and the mating section 2142a of the connector body 2142 of the wiring guide 2141 connected to the right side is located on the left side of the wiring guide 2141 (that is, the mating sections 2142a of two adjacent connector bodies 2142 are located on both sides of the wiring guide 2141 to which they are connected). In this way, the mating sections 2142a of the two adjacent wiring guides 2141 form a "plug", and the tail ends of the two mating wiring guides 2141 form a "socket", which makes the mating of the wiring units 214 respectively set on the two wire frames 2131 more accurate.

[0119] In some embodiments of this application, the misaligned segment 2142b is vertically connected between the wiring guide 2141 and the mating segment 2142a, and the end of the other wiring guide 2141 abuts against the misaligned segment 2142b for limitation. When the two wire frames 2131 are assembled in place along the length direction of the relay 1000, the end of the other wiring guide 2141 abuts against the outer surface of the misaligned segment 2142b. Specifically, the connector 2142 is connected to the front end of the rear wiring guide 2141. During the assembly of the two wire frames 2131, the mating segment 2142a of the rear wiring guide 2141 is set to abut against the side surface of the front wiring guide 2141. At the same time, the rear end face of the front wiring guide 2141 abuts against the front side face of the misaligned segment 2142b. This abutment relationship prevents the two wiring guides 2141 from continuing to move relative to each other along the length direction of the wire frame 2131 assembly. Excessive displacement is limited by end contact, providing a stable physical positioning reference for subsequent welding operations.

[0120] In some embodiments of this application, the wiring conductor 2141 and the connector 2142 are integrally formed. For example, the wiring conductor 2141 and the connector 2142 are integrally formed by processes such as metal stamping or bending, or by casting. Integral forming eliminates the physical interface between the wiring conductor 2141 and the connector 2142, while ensuring the overall structural reliability of the wiring conductor 2141 and the connector 2142 and eliminating the risk of breakage at the connection point.

[0121] Combination Figure 6 and Figure 13 As shown, in some embodiments of this application, in the height direction of the relay 1000, the boundary of the second yoke 211 and the boundary of the coil assembly 213 are both located inside the boundary on the same side of the first yoke 211. In other words, in the height direction of the relay 1000, the upper end face of the second yoke 211 and the upper end face of the coil assembly 213 are both located below the upper end face of the first yoke 211, that is, neither the second yoke 211 nor the coil assembly 213 protrudes from the upper end face of the first yoke 211; the lower end face of the second yoke 211 and the lower end face of the coil assembly 213 are both located above the lower end face of the first yoke 211, that is, neither the second yoke 211 nor the coil assembly 213 protrudes from the lower end face of the first yoke 211. Based on this, for the electromagnet core assembly 21, the upper end face of the first yoke 211 body is the upper end face of the electromagnet core assembly 21, and the lower end face of the first yoke 211 body is the lower end face of the electromagnet core assembly 21. Furthermore, the lower end of the first yoke 211 body is also provided with a concave region 21112, which is recessed upwards, so that the first yoke 211 body forms an abutment foot 21113, which abuts against the first separator 12.

[0122] In this way, not only is the contact area between the lower end of the first yoke 211 and the first separator 12 reduced, but the mass of the first yoke 211 is also reduced (i.e., the concave region 21112 reduces the weight of the first yoke 211). It should be understood that when the electromagnet core assembly 21 is assembled in the magnetic circuit cavity 101 (specifically the first sub-magnetic circuit cavity 101a), the lower end of the electromagnet core assembly 21 only contacts the first separator 12 through the abutment foot 21113 of the first yoke 211, resulting in a small contact area between the electromagnet core assembly 21 and the first separator 12. Furthermore, because the contact area between the electromagnet core assembly 21 and the first separator 12 is small, the risk of the yoke 211 tilting relative to the horizontal plane due to the uneven surface of the first separator 12 can be reduced. In other words, this design allows the electromagnet core assembly 21 to be placed horizontally when it is assembled inside the magnetic circuit cavity 101.

[0123] Combination Figures 13 to 16As shown, in some embodiments of this application, the electromagnet core assembly 21 further includes two striking pin structures 216. Each permanent magnet 212 is fixedly assembled to the second yoke 211 body via a striking pin structure 216. The striking pin structure 216 includes a connecting section 2161 and an impact section 2162. The connecting section 2161 connects the permanent magnet 212 to the second yoke 211 body. The impact section 2162 protrudes from the side of the permanent magnet 212 opposite to the connecting section 2161 and can collide with the transmission assembly 22, preventing the transmission assembly 22 from impacting the permanent magnet 212. The striking pin structure 216 can absorb the impact force applied by the transmission assembly 22, dispersing most of the impact force onto the yoke 211, greatly reducing the impact impact of the transmission assembly 22 on the permanent magnet 212, avoiding magnetic circuit failure caused by the brittle fracture of the permanent magnet 212, and improving the reliability of the magnetic circuit operation.

[0124] Combination Figures 13 to 16 As shown, in some embodiments of this application, the permanent magnet 212 has a first pinhole 2120 through which the connecting section 2161 passes, and the diameter of the impact section 2162 is larger than the diameter of the first pinhole 2120. This arrangement of the diameters of the impact section 2162 and the first pinhole 2120 prevents the impact section 2162 from entering the first pinhole 2120 of the permanent magnet 212. The impact section 2162 can axially limit the impact pin structure 216, so even if the impact force applied by the transmission assembly 22 to the impact pin structure 216 is too large, the impact section 2162 of the impact pin structure 216 cannot enter the first pinhole 2120, thus preventing the impact pin structure 216 from detaching from the permanent magnet 212 and the yoke 211.

[0125] Regarding the axial thickness of the impact segment 2162, this application does not impose any limitations, as long as it can effectively withstand the impact force applied by the transmission component 22. The cross-sectional shape of the impact segment 2162 can be circular, polygonal, or other regularly or irregularly shaped, and this application does not impose any limitations on this.

[0126] Further, see Figure 13 In some embodiments of this application, the second yoke 211 body has a second pinhole 21122 opposite to the first pinhole 2120; such as Figure 14 and Figure 15As shown, the connecting section 2161 includes a first through-hole 21611, a second through-hole 21612, and a riveting part 21613 connected in sequence. The first through-hole 21611 passes through a first pinhole 2120, and the second through-hole 21612 passes through a second pinhole 21122. The riveting part 21613 is located on the side of the yoke 211 away from the permanent magnet 212 and can be deformed to form an upsetting head. The upsetting head cooperates with the impact section 2162 to connect the permanent magnet 212 and the yoke 211 together. With this configuration, the permanent magnet 212 and the yoke 211 can be firmly connected together by the clamping of the riveting part 21613 and the impact section 2162.

[0127] The radial dimensions of the first through-hole 21611, the second through-hole 21612, and the riveting part 21613 can be designed to match the dimensions of the first pinhole 2120 and the second pinhole 21122. In one embodiment, the diameter of the first through-hole 21611 is larger than the diameter of the second through-hole 21612, and the diameter of the second through-hole 21612 is equal to the diameter of the riveting part 21613.

[0128] In one embodiment, the second yoke 211 has multiple reinforcing grooves on the side opposite to the magnetic conductor. These grooves are arranged circumferentially around the second pin hole 21122 and communicate with it. When pressure is applied to the riveting part 21613 to deform it into an upsetting head, the edge of the riveting part 21613 is flattened and embedded into the reinforcing groove, thus achieving a connection with the yoke 211 and improving the connection strength between the yoke 211 and the permanent magnet 212. The reinforcing grooves can be regularly shaped grooves such as circular or square grooves, or irregularly shaped grooves. Their number can be set according to requirements, for example, two, three, four, or five grooves can be evenly arranged along the axial direction.

[0129] In one embodiment, the first pinhole 2120, the second pinhole 21122, and the impact pin structure 216 are coaxially arranged. This arrangement allows the impact pin structure 216 to evenly distribute the impact force received to the area around the second pinhole 21122 of the yoke 211, preventing the area around the second pinhole 21122 from cracking due to stress concentration.

[0130] In some embodiments of this application, a force buffer (not shown in the figures) is provided on the side of the impact section 2162 facing the transmission assembly 22. The force buffer can buffer the impact of the transmission assembly 22, prevent the yoke 211 from deforming due to excessive impact force, and ensure that the position of the permanent magnet 212 relative to the transmission assembly 22 remains unchanged.

[0131] The force buffer can be a rubber layer. In one embodiment, the side of the impact section 2162 facing the transmission component 22 has a groove, and the rubber layer is embedded in the groove. In another embodiment, a fixing rod protrudes from the side of the impact section 2162 facing the transmission component 22, and a blind hole is provided on the side of the rubber layer facing the impact section 2162, and the fixing rod is embedded in the blind hole.

[0132] In some embodiments of this application, the number of striking pin structures 216 is set to two, with each striking pin structure 216 located at the center of the corresponding permanent magnet 212.

[0133] Combination Figure 13 and Figures 17 to 20 As shown, in some embodiments of this application, the transmission assembly 22 may include components such as an iron core 221, a contact sleeve 222, and a push arm 223. The contact sleeve 222 has an axially penetrating inner cavity. Therefore, the contact sleeve 222 can be fitted onto the outside of the iron core 221 based on the inner cavity, forming a relatively fixed assembly state with the iron core 221. In this case, if the iron core 221 is movably assembled with the coil assembly 213, the iron core 221 may not directly contact the coil assembly 213, but can indirectly make assembly contact with the coil assembly 213 through the contact sleeve 222.

[0134] The outer wall of the contact sleeve 222 is provided with a number of contact protrusions 2221. Therefore, the iron core 221 can not only indirectly make assembly contact with the coil assembly 213 through the contact sleeve 222, but also be movably assembled with the coil assembly 213 through the number of contact protrusions 2221 on the contact sleeve 222, so that the number of contact protrusions 2221 directly make assembly contact with the coil assembly 213.

[0135] Compared to the assembly contact between the iron core 221 or the contact sleeve 222 and the coil assembly 213, if the contact protrusions 2221 make assembly contact with the coil assembly 213, the contact method changes to point contact or line contact. In one embodiment, the contact protrusions 2221 can be configured as linear protrusions arranged along the axial direction of the contact sleeve 222. Therefore, the contact protrusions 2221 can be configured for line contact with the coil assembly 213 along the axial direction of the contact sleeve 222. Furthermore, the contact protrusions 2221 can be designed to be all parallel to each other, partially parallel to each other, or not parallel to each other. The contact protrusions 2221 can be distributed along the circumferential direction of the contact sleeve 222 on the outer wall of the contact sleeve 222. For example, the circumferential spacing between adjacent contact protrusions 2221 may be the same, or they may be distributed in other ways on the outer wall of the contact sleeve 222; this is not limited here.

[0136] Therefore, the above design allows for point or line contact between the contact protrusions 2221 and the coil assembly 213, rather than surface contact between the core 221 or the contact sleeve 222 and the coil assembly 213. Changing from surface contact to point or line contact significantly reduces the contact area, decreases frictional resistance during movement, and thus increases the operating speed of the magnetic circuit mechanism under long strokes, meeting the requirement for rapid response.

[0137] It should be noted that the arrangement of the plurality of contact protrusions 2221 is not limited to the above embodiments. In other embodiments, those skilled in the art can provide a plurality of contact protrusions 2221 on at least one of the outer wall of the contact sleeve 222 and the inner wall of the coil assembly 213 as needed, for example, see [reference needed]. Figure 18 As shown, a plurality of contact protrusions 2221 may also be provided in the inner wall of the coil assembly 213, so that the plurality of contact protrusions 2221 in the inner wall of the coil assembly 213 form a point contact engagement or a line contact engagement with the outer wall of the contact sleeve 222. Alternatively, a plurality of contact protrusions 2221 may be provided in both the outer wall of the contact sleeve 222 and the inner wall of the coil assembly 213, and they may be staggered relative to each other, thereby enabling the outer wall of the contact sleeve 222 and the inner wall of the coil assembly 213 to have a point contact engagement or a line contact engagement with each other through the plurality of contact protrusions 2221.

[0138] The surface of the contact protrusion 2221 can be configured as a curved surface. This curved design makes the contact protrusion 2221 smoother, which helps reduce friction. For example... Figure 19 As shown, each contact protrusion 2221 may include a first constant protrusion segment 2221a, a second constant protrusion segment 2221b, a first gradient protrusion segment 2221c, and a second gradient protrusion segment 2221d. The protrusion height of the first constant protrusion segment 2221a and the second constant protrusion segment 2221b is constant and is mainly used to stably slide in contact with the inner wall of the coil assembly 213. The protrusion height of the first gradient protrusion segment 2221c and the second gradient protrusion segment 2221d is variable and is mainly used to facilitate insertion into the inner wall of the coil assembly 213 through the gradient structure.

[0139] Continue reading Figure 19 As shown, the fixing ring 225 is sleeved at the center of the contact sleeve 222, the first gradually changing protrusion 2221c and the second gradually changing protrusion 2221d are located at the two ends of the contact sleeve 222 respectively, the first constant protrusion 2221a is located between the fixing ring 225 and the first gradually changing protrusion 2221c, and the second constant protrusion 2221b is located between the fixing ring 225 and the second gradually changing protrusion 2221d.

[0140] Furthermore, the first constant protrusion 2221a and the second constant protrusion 2221b are connected to both ends of the fixing ring 225, forming an integrally molded structure. In the direction from the center position of the contact sleeve 222 to both ends, at least one of the first gradual protrusion 2221c and the second gradual protrusion 2221d has a gradually decreasing protrusion height on the surface of the contact sleeve 222. This gradually decreasing protrusion height can form a guiding structure at both ends of the contact sleeve 222, facilitating the insertion and assembly of the two ends of the contact sleeve 222 into the inner wall of the coil assembly 213.

[0141] The first gradually increasing raised section 2221c is connected to the end of the first constant raised section 2221a away from the fixing ring 225, and the second gradually increasing raised section 2221d is connected to the end of the second constant raised section 2221b away from the fixing ring 225. Since the raised height of the first constant raised section 2221a and the second constant raised section 2221b is constant and mainly used to stably slide in contact with the inner wall of the coil assembly 213, the lengths of the first constant raised section 2221a and the second constant raised section 2221b should be significantly longer than the lengths of the first gradually increasing raised section 2221c and the second gradually increasing raised section 2221d. For example, the length of the first constant raised section 2221a is at least three times greater than the length of the first gradually increasing raised section 2221c, and the length of the second constant raised section 2221b is at least three times greater than the length of the second gradually increasing raised section 2221d.

[0142] The width of the fixing ring 225 is greater than the width of the push arm 223, and the width of the structural reinforcement 224 gradually increases from the fixing ring 225 to the push arm 223. Therefore, the gradual width design of the structural reinforcement 224 can match the width of the fixing ring 225 and the width of the push arm 223, so that the structural reinforcement 224 forms a stable connection between the fixing ring 225 and the push arm 223 and improves the strength of the connection. Specifically, the maximum width of the structural reinforcement 224 is less than or equal to the width of the fixing ring 225, and the minimum width of the structural reinforcement 224 is less than or equal to the width of the push arm 223.

[0143] In one embodiment, the thickness of the structural reinforcement 224 can be defined to gradually increase in the direction from the retaining ring 225 to the push arm 223, and the minimum thickness of the structural reinforcement 224 is less than or equal to the thickness of the push arm 223. Furthermore, the contact sleeve 222, the contact protrusion 2221, the push arm 223, the structural reinforcement 224, and the retaining ring 225 are configured as an integrally formed structure.

[0144] Continue reading Figures 17 to 18As shown, the push arm 223 can be connected to the contact sleeve 222. In this case, the push arm 223 can be configured to be driven by the contact system 4. The push arm 223 can be designed as a regular or irregular structure, such as a plate-like structure, column-like structure, or cylindrical structure, depending on the requirements. Those skilled in the art can design it according to actual needs, and no limitation is made here. Moreover, the push arm 223 is indirectly assembled to the contact sleeve 222 through a structural reinforcement 224. The structural reinforcement 224 can be designed as a regular or irregular structure, such as a plate-like structure, column-like structure, or cylindrical structure, depending on the requirements. Those skilled in the art can design it according to actual needs, and no limitation is made here.

[0145] A retaining ring 225 is fitted around the outside of the contact sleeve 222, and the structural reinforcement 224 is indirectly assembled to the contact sleeve 222 through the retaining ring 225. The axial length of the retaining ring 225 can be designed according to actual needs. While ensuring the fixed connection requirements, the axial length is shortened as much as possible, thereby exposing several contact protrusions 2221 of the contact sleeve 222 for movable assembly with the coil assembly 213, thus achieving the design purpose of the contact protrusions 2221 in this application. The axial length of the contact sleeve 222 can be less than the axial length of the iron core 221, thereby exposing one or both ends of the iron core 221 outside the contact sleeve 222.

[0146] Continue to combine Figure 13 and Figure 17 As shown, in one embodiment, the coil assembly 213 includes components such as two wire frames 2131 and two coil units 2132. The two wire frames 2131 are respectively a first wire frame and a second wire frame, and the two coil units 2132 are respectively a first coil unit and a second coil unit. The first coil unit is disposed on the wire frame cylinder wall 21312 of the first wire frame, so that the interior of the first coil unit has a first coil space; the second coil unit is disposed on the wire frame cylinder wall 21312 of the second wire frame, so that the interior of the second coil unit has a second coil space. When the transmission assembly 22 is assembled with the coil assembly 213, for the transmission assembly 22, one end of the iron core 221 and the contact sleeve 222 is movably assembled in the first coil space of the first coil unit, and the other end of the iron core 221 and the contact sleeve 222 is movably assembled in the second coil space of the second coil unit.

[0147] Therefore, when the outer wall of the contact sleeve 222 is provided with a plurality of contact protrusions 2221, the plurality of contact protrusions 2221 make point contact or line contact with the inner wall of at least one of the first coil space and the second coil space. For example, the portion of the contact protrusion 2221 in the contact sleeve 222 that extends into the first coil space makes point contact or line contact with the inner wall of the first coil space. Similarly, the portion of the contact protrusion 2221 in the contact sleeve 222 that extends into the second coil space makes point contact or line contact with the inner wall of the second coil space.

[0148] At least one of the first coil space and the second coil space has a guide arc surface at its spatial port, which is configured to guide the movement of the contact sleeve 222. Therefore, the guide arc surface can also be used to enable the two ends of the contact sleeve 222 to quickly and accurately extend into the first coil space or the second coil space.

[0149] For further reference Figure 13 and Figure 17 As shown, there is a gap 2130 between the first coil unit and the second coil unit. Therefore, the push arm 223 is configured to move within the gap 2130 and cannot move out of the gap 2130. So when the contact sleeve 222 reciprocates, the push arm 223, which is connected to or integrally formed with the contact sleeve 222, will also reciprocate with the contact sleeve 222.

[0150] At this point, the push arm 223 can be confined within the interval limiting distance 2130, thereby also confining the contact sleeve 222 to move within the corresponding path range and preventing it from leaving that path range. Therefore, since the contact sleeve 222 is fitted with a fixing ring 225, the push arm 223 is connected to the fixing ring 225 through the structural reinforcement 224, and the fixing ring 225 is configured to be confined within the interval limiting distance 2130.

[0151] Furthermore, the maximum diameter of the retaining ring 225 can be designed to be larger than the inner diameter in the first coil space and the second coil space, thereby enabling the retaining ring 225 to be configured to make limiting contact with the first coil unit and the second coil unit, thereby further restricting the movement of the push arm 223, the structural reinforcement 224, the retaining ring 225 and the contact sleeve 222 as a whole within a preset path range.

[0152] Regarding the structural design of the coil assembly 213, those skilled in the art can design it according to actual needs, thereby enabling the transmission assembly 22 provided in this application to have a suitable assembly structure with the coil assembly 213, and then using the contact protrusion 2221 of this application to realize the design change from surface contact to point contact or line contact, solving the technical problems mentioned in this application, which will not be limited or elaborated here.

[0153] Combining 2, Figure 5 and Figure 27As shown, in some embodiments of this application, an inner cover plate fixing part 16 is provided in the contact cavity 102, so the inner cover plate 5 can be installed in the inner cover plate fixing part 16. In one embodiment, the inner cover plate fixing part 16 can be configured as an inner cover plate 5 fixing hole provided in the contact cavity 102, and the inner cover plate 5 is provided with an inner cover plate fixing post 53, which is inserted into the inner cover plate 5 fixing hole. In addition, the inner cover plate 5 and the inner cover plate fixing part 16 can also be assembled with each other by snap-fit, adhesive or other methods, which are not limited here.

[0154] After the inner cover plate 5 is fixedly assembled relative to the base 1 via the inner cover plate fixing part 16, the inner cover plate 5 can make limited contact with the moving part 41, so that the inner cover plate 5 can be configured to restrict the moving part 41 from moving in a direction away from the contact cavity 102, thereby restricting the moving contact assembly 42 from moving in a direction away from the contact cavity 102. This ensures that the moving contact of the moving contact assembly 42 does not move unexpectedly, so that the relative positional relationship between the moving contact of the moving contact assembly 42 and the stationary contact of the stationary contact assembly 3 is always in the preset design state.

[0155] Furthermore, in order to detect the distance between the moving contact of the moving contact assembly 42 and the stationary contact of the stationary contact assembly 3, it is necessary to expose the moving contact of the moving contact assembly 42 and the stationary contact of the stationary contact assembly 3 during the test, so as not to affect the parameter detection. Therefore, this application designs a structure in the assembly of the relay 1000 that can expose the moving contact of the moving contact assembly 42 and the stationary contact of the stationary contact assembly 3 without affecting the parameter detection, while ensuring that the moving contact of the moving contact assembly 42 does not move unexpectedly. That is, an inner cover plate 5 is added to the relay 1000, and the inner cover plate 5 is used to restrict the movement of the moving member 41 in a direction away from the contact cavity 102.

[0156] See Figure 27 As shown, in one embodiment, the inner cover plate 5 may include a connected central plate area 51 and two extension plate areas 52, the two extension plate areas 52 being disposed at both ends of the central plate area 51 in the length direction.

[0157] At this point, the width of the extension plate area 52 can be limited to be less than the width of the center plate area 51. In one embodiment, the width of the extension plate area 52 is L1, the width of the center plate area 51 is L2, and the width of the sliding groove is L3. Therefore, the width of the center plate area 51 can be limited to be greater than the width of the sliding groove, so that the center plate area 51 can span the width of the sliding groove in the width direction, and thus be fixed to the inner cover plate fixing part 16 of the base 1 on both sides of the width of the sliding groove. The wider design that can span the width of the sliding groove improves the fixing reliability of the center plate area 51.

[0158] Accordingly, the inner cover plate 5 is provided with two inner cover plate fixing posts 53, and the number of inner cover plate fixing parts 16 is configured to be two and matched with the two inner cover plate fixing posts 53. The two inner cover plate fixing posts 53 are located at both ends in the width direction of the central plate area 51 of the inner cover plate 5, and the straight-line distance between the two inner cover plate fixing posts 53 is greater than the width of the sliding groove and also spans the width of the sliding groove. The end of the inner cover plate fixing post 53 is provided with a first guide section 531, which can be configured as a conical head structure, thereby facilitating the guiding insertion.

[0159] Meanwhile, the width of the extension plate area 52 is smaller than the width of the sliding groove, so that the extension plate area 52 can move within the width of the sliding groove, avoiding at least one of the stationary spring fixing part 13 and the moving spring assembly part 14, which facilitates the detection of the distance between the moving contact of the moving contact component 42 and the stationary contact of the stationary contact component 3 in the stationary spring fixing part 13 and the moving spring assembly part 14, or other parameters regarding the moving contact of the moving contact of the moving contact component 42 and the stationary contact of the stationary contact component 3.

[0160] Therefore, the inner cover plate 5 can make limiting contact with the main body section 411 of the moving member 41. Since the main body section 411 does not have a moving contact component 42 and does not interfere with the static contact component 3 in the height direction, when the inner cover plate 5 makes limiting contact with the main body section 411 of the moving member 41, the inner cover plate 5 can avoid the static spring fixing part 13 and the moving spring assembly part 14, exposing the moving contact point of the moving contact component 42 and the static contact point of the static contact component 3.

[0161] To ensure that the moving member 41 drives the moving contact assembly 42 to move relative to the stationary contact assembly 3 in the base 1 along a predetermined trajectory, in one embodiment, a sliding track 17 may be provided in the contact cavity 102, and the moving member 41 is slidably assembled in the sliding groove along the sliding track 17. In this case, the moving member 41 may be provided with a sliding protrusion, and the moving member 41 is slidably assembled with the sliding track 17 through the sliding protrusion.

[0162] The sliding track 17 includes a first track groove 171 formed on the bottom surface of the contact cavity 102 of the base 1 and two first track walls 172 disposed on both sides of the first track groove 171. The first track groove 171 is configured as a straight groove and the first track walls 172 are configured as straight walls. The inner surfaces of the two first track walls 172 are in the same plane as the inner groove walls on both sides of the first track groove 171.

[0163] Therefore, by setting two first track walls 172 on both sides of the first track groove 171, the space for sliding assembly of the sliding protrusion can be defined by the two first track walls 172. Due to the design of the two first track walls 172, the groove depth of the first track groove 171 is further increased, which is equivalent to providing a deeper sliding space for the sliding protrusion. This not only improves the sliding stability of the sliding protrusion, but also allows the two first track walls 172 on both sides to serve as a stop structure to prevent the sliding protrusion from tilting to both sides.

[0164] Continue to combine Figure 2 , Figure 5 and Figure 28 As shown, in some embodiments of this application, the relay 1000 may further include an outer cover plate 6, and an outer cover plate fixing part 18 is provided in the contact cavity 102, with the outer cover plate 6 mounted on the outer cover plate fixing part 18. In one embodiment, the outer cover plate fixing part 18 may be configured as an outer cover plate 6 fixing hole provided in the contact cavity 102, and the outer cover plate 6 is provided with an outer cover plate fixing post 63, which is inserted into the outer cover plate 6 fixing hole.

[0165] The number of outer cover plate fixing parts 18 is configured in even numbers and they form a group of two. Two outer cover plate fixing parts 18 in one group are aligned with two inner cover plate fixing posts 53 in the same vertical direction. Therefore, when the outer cover plate 6 is fixed to the base 1 by two of the outer cover plate fixing parts 18 in one group, the area where the outer cover plate 6 connects to the base 1 is a relatively secure area. This securely fixed area also corresponds to the area where the inner cover plate 5 is fixed to the base 1 by the inner cover plate fixing posts 53. Therefore, the inner cover plate 5 can be pressed down by this securely fixed area, improving the stability of the inner cover plate 5. A second guide section 631 is provided at the end of the outer cover plate fixing post 63. The second guide section 631 can be configured as a tapered head structure, thereby facilitating guiding and insertion.

[0166] In addition, the outer cover plate 6 and the outer cover plate fixing part 18 can be assembled with each other by various methods such as snap-fit ​​and adhesive, which are not limited here.

[0167] At this time, the outer cover plate 6 can make limiting contact with the movable member 41. In addition to the inner cover plate 5, the outer cover plate 6 can also be configured to restrict the movement of the movable member 41 in a direction away from the contact cavity 102, such as restricting the movement of the movable member 41 in the height direction, thereby restricting the movement of the moving contact assembly 42 in the height direction. The outer cover plate 6 has a plurality of stationary spring lead-out holes 61, which can be used to lead out part of the structure of the stationary contact assembly 3, facilitating the connection of other structures.

[0168] To ensure that the moving component 41 drives the moving contact assembly 42 to move relative to the stationary contact assembly 3 within the base 1 along the expected trajectory, in one embodiment, the outer cover plate 6 may also be provided with a limiting track 62, along which the moving component 41 is slidably assembled. In this case, the limiting track 62 can cooperate with the sliding track 17 to correct the movement trajectory of the moving component 41. Simultaneously, the moving component 41 may also be provided with a limiting protrusion 413, allowing the moving component 41 to slide along the limiting track 62 via the limiting protrusion 413.

[0169] The limiting track 62 includes a second track groove 621 formed on the surface of the outer cover plate 6 and two second track walls 622 disposed on both sides of the second track groove 621. The second track groove 621 is configured as a straight groove, and the second track walls 622 are configured as straight walls. The inner sides of the two second track walls 622 are in the same plane as the inner groove walls on both sides of the second track groove 621.

[0170] Therefore, by setting two second track walls 622 on both sides of the second track groove 621, the space for sliding assembly of the limiting protrusion 413 can be defined by the two second track walls 622. Due to the design of the two second track walls 622, the groove depth of the second track groove 621 is further increased, which in turn provides a deeper sliding space for the limiting protrusion 413. This not only improves the sliding stability of the limiting protrusion 413, but also allows the two second track walls 622 on both sides to serve as a stop structure to prevent the limiting protrusion 413 from tilting to both sides.

[0171] In one embodiment, the height of the limiting protrusion 413 protruding from the movable member 41 is greater than the height of the sliding protrusion protruding from the movable member 41, and the sum of the depth of the second track groove 621 and the height of the second track wall 622 is greater than the sum of the depth of the first track groove 171 and the height of the first track wall 172.

[0172] Therefore, when the moving part 41 reciprocates along the preset trajectory, the sliding protrusion can mainly guide the direction of movement within the space formed by the second track groove 621 and the two second track walls 622. At the same time, the combined depth of the first track groove 171 and the height of the first track wall 172 are designed to be larger, mainly to provide a more stable limiting space for the limiting protrusion 413, so that the limiting protrusion 413 is stably restricted to reciprocating in the preset direction within the space formed by the second track groove 621 and the two second track walls 622, thereby improving the stability of the movement.

[0173] Combination Figures 21 to 25As shown, in some embodiments of this application, the movable member 41 has a mounting hole 4123, and the moving contact assembly 42 is mounted on the movable member 41 via a locking member 43. The locking member 43 includes a pressure cap 431 and a plurality of elastic arms 432. The pressure cap 431 is located outside the movable member 41 and abuts against the movable member 41. The elastic arms 432 pass through the mounting hole 4123 and can lock the movable member 41 by their own rebound force, thereby allowing the pressure cap 431 to press the moving contact assembly 42 onto the movable member 41.

[0174] The elastic arm 432 of the locking member 43 has a certain elasticity, which allows the elastic arm 432 to be smoothly inserted into the mounting hole 4123 of the moving member 41 after being squeezed and deformed. Finally, it relies on its own rebound force to hold the moving member 41 and lock it. This allows the cover 431 to press the moving contact component 42 onto the moving member 41. This eliminates the need to apply a large installation force to the moving contact component 42 to achieve an interference fit with the moving member 41. It can effectively prevent the moving contact component 42 from contaminating the static and moving contacts due to the generation of plastic shavings during the assembly process, improve the reliability of the static and moving contact, and effectively fasten and limit the moving contact component 42.

[0175] like Figure 23 As shown, in this embodiment, there are two elastic arms 432, which are tilted towards each other so that they can rebound in the same direction. Tiltping the elastic arms 432 facilitates their rebound and effectively grips the moving member 41.

[0176] Of course, in some other embodiments, the number of elastic arms 432 may be greater than two, and all elastic arms 432 are arranged around the central axis of the pressure cover 431, and all elastic arms 432 spring back toward the central axis of the pressure cover 431.

[0177] Regarding the tilt angle of the elastic arm 432, that is, the angle between the elastic arm 432 and the central axis of the locking member 43, this embodiment does not impose specific restrictions. As long as the elastic arm 432 can be smoothly inserted into the mounting hole 4123 of the moving member 41 without failing to spring back due to excessive deformation, and also has sufficient spring force to clamp the moving member 41, it can be set to 10°, 15°, 20°, etc.

[0178] In order for the two elastic arms 432 to spring back and grip the moving member 41 in a direction close to each other, the following combination is required. Figure 23 and Figure 24 As shown, there are two mounting holes 4123, each corresponding to one of the elastic arms 432. The distance between the two mounting holes 4123 is less than the minimum distance between the two elastic arms 432 in their natural state. It should be noted that the natural state of the elastic arm 432 refers to the state in which the elastic arm 432 is not under force.

[0179] Among them, such as Figure 4 As shown, the diameter of the mounting hole 4123 can be slightly larger than the thickness of the corresponding elastic arm 432. This design allows the elastic arm 432 to pass smoothly through the mounting hole 4123, preventing excessive compression of the inner wall of the mounting hole 4123 during the process, thereby further reducing the probability of plastic debris generation.

[0180] In this embodiment, such as Figure 4 , Figure 7 and Figure 8 As shown, the end of the elastic arm 432 away from the pressure cap 431 is provided with a claw 4321. The claw 4321 extends along the springback direction of the elastic arm 432 and abuts against the outer wall of the moving member 41. The claw 4321 can limit the elastic arm 432 in the insertion direction of the elastic arm 432 by cooperating with the pressure cap 431, so as to prevent the elastic arm 432 from shaking (or even falling out of the mounting hole 4123 of the moving member 41).

[0181] Among them, the claws 4321 of the two elastic arms 432 extend in a direction close to each other.

[0182] In this embodiment, such as Figure 22 As shown, the pressure cap 431 has a first limiting part 4311 on the side facing the moving member 41, and the moving member 41 has a second limiting part 414 on the side facing the pressure cap 431. The first limiting part 4311 and the second limiting part 414 cooperate to limit the pressure cap 431 in a direction perpendicular to the springback direction of the elastic arm 432. Through the cooperation of the first limiting part 4311 and the second limiting part 414, the elastic arm 432 can be limited in a direction perpendicular to the insertion direction and the springback direction of the elastic arm 432, preventing the elastic arm 432 from shaking, thereby enabling the moving contact assembly 42 to be firmly installed on the moving member 41.

[0183] As an example, the second limiting portion 414 is a groove 2210, and the first limiting portion 4311 is a protrusion inserted into the groove 2210. In this example, as... Figure 7 As shown, the elastic arm 432 extends from the second limiting portion 414 in a direction away from the pressure cover 431. This arrangement allows the elastic arm 432 to connect to the second limiting portion 414 without connecting to the pressure cover 431, giving the pressure cover 431 a larger area to press the moving contact assembly 42, and also reducing the size of the pressure cover 431, making its structure more compact. See also... Figure 7 The second limiting part 414 can extend from one end of the pressure cover 431 to the other end along the springback direction of the elastic arm 432.

[0184] As another example, the first limiting part 4311 is a groove 2210, and the second limiting part 414 is a protrusion inserted into the groove 2210. Figure 4 As shown, in this example, the elastic arm 432 is aligned with the first limiting part 4311 in the rebound direction. This arrangement does not affect the cooperation between the first limiting part 4311 and the second limiting part 414, and also allows the pressure cap 431 to have a larger area in the direction perpendicular to the insertion direction and the rebound direction of the elastic arm 432 to press the movable contact assembly 42.

[0185] In this embodiment, such as Figure 21 As shown, multiple moving contact components 42 are provided, and these multiple moving contact components 42 are spaced apart along the length direction of the moving member 41. Providing multiple moving contact components 42 increases the current-carrying area, making the relay 1000 suitable for high-current electrical appliances, such as high-computing-power AI servers. Optionally, as... Figure 21 As shown, the moving contact assembly 42 has a moving contact at each end along the width direction of the moving member 41.

[0186] See also Figure 21 , 24 and Figure 25 As shown, at least one locking element 43 is provided, and each locking element 43 is disposed between two adjacent moving contact components 42, pressing the two adjacent moving contact components 42 onto the moving component 41. During installation, the two adjacent moving contact components 42 are first inserted into the moving component 41, and then the locking element 43 is inserted into the corresponding mounting hole 4123 on the moving component 41. This achieves locking of the two adjacent moving contact components 42, which simplifies the disassembly and assembly steps of the moving contact components 42 and reduces the number of locking elements 43. In addition, this arrangement of locking elements 43 and moving contact components 42, i.e., one locking element 43 corresponds to two moving contact components 42, facilitates switching and can also meet the requirements for large gaps.

[0187] Optionally, the two moving contact components 42 share a single locking element 43. For example, as shown... Figure 21 As shown, there are four moving contact assemblies 42 along the length of the moving member 41. The two moving contact assemblies 42 on the left share a locking member 43, and the two moving contact assemblies 42 on the right share a locking member 43.

[0188] Optionally, the first limiting part 4311 is provided in the middle of the pressure cover 431, and the two ends of the pressure cover 431 along the length direction of the moving member 41 are press-fitted with two adjacent moving contact components 42.

[0189] In this embodiment, the length direction of the movable member 41 is perpendicular to the rebound direction of the elastic arm 432, that is, the two elastic arms 432 are arranged at intervals along the width direction of the movable member 41. This arrangement not only allows the two elastic arms 432 to be spaced apart at the middle of the pressure cover 431 along the width direction of the movable member 41, so that both ends of the pressure cover 431 along the length direction of the movable member 41 have sufficient area to press the moving contact assembly 42, but also allows the elastic arms 432 to have a large rebound space, which can effectively hold the movable member 41.

[0190] Of course, in some other embodiments, the length direction of the moving member 41 may also be parallel to the rebound direction of the elastic arm 432, that is, the two elastic arms 432 are arranged at intervals along the length direction of the moving member 41.

[0191] In this embodiment, such as Figure 25 As shown, the moving contact assembly 42 includes a connected moving spring 421 and a receiving member 422. Multiple moving contacts are provided on the side of the moving spring 421 facing away from the receiving member 422; see also... Figure 5 and Figure 6 The movable member 41 has a movable spring mounting cavity 4121, which includes a through hole 4121a and a groove 4121b. The through hole 4121a is used for the movable spring 421 to pass through, and the pressure cap 431 is used to press the receiving member 422 into the groove 4121b through the groove opening. During installation, the movable spring 421 and the receiving member 422 of the movable contact assembly 42 can be inserted into the through hole 4121a and the groove 4121b respectively on the groove opening side of the groove 4121b. After the pressure cap 431 abuts against the bottom of the groove 4121b, the pressure cap 431 is then fastened onto the movable member 41, thereby pressing the movable contact assembly 42 onto the movable member 41.

[0192] In this embodiment, such as Figure 25 As shown, the moving contact assembly 42 further includes a compression spring 423 and at least two spindles 424. The spindles 424 protrude from the receiving member 422. A moving spring 421 is disposed on the spindle 424 and is capable of moving axially along the spindle 424. The compression spring 423 connects the moving spring 421 and the receiving member 422 and is capable of providing a force to the moving spring 421 that moves away from the receiving member 422. As an example, two spindles 424 are provided along the width direction of the moving spring 421, or two spindles are provided along the length direction of the moving spring 421.

[0193] With the above configuration, firstly, there are at least two spindles 424, instead of using only one spindle 424 to assemble the pressure spring 423 and the moving spring 421 relative to each other. Therefore, the two or more spindles 424 between the moving spring 421 and the pressure spring 423 prevent the moving contact assembly 42 from rotating on a fixed axis based on the fixed axis of rotation provided by one spindle 424. Instead, two or more spindles 424 are used to resist the circumferential rotation of the moving contact assembly 42, thereby ensuring that the moving contact of the contact assembly and the stationary contact of the stationary contact assembly 3 can form a precise alignment contact, improving the stability of the contact. Secondly, when the moving contact assembly 42 moves closer to or further away from the stationary contact assembly 3, and when the moving contact assembly 42 makes contact or separates from the stationary contact assembly 3, both the moving spring 421 and the pressure spring 423 can slide relative to the spindle 424 in the axial direction after being subjected to force, thereby forming a buffer and adaptive adjustment, improving motion stability and safety.

[0194] In one embodiment, combined Figure 25 and Figure 26 As shown, the compression spring 423 may include a compression spring center portion 4231 and two compression spring extension portions 4232 located on both sides of the compression spring center portion 4231. The compression spring center portion 4231 has a compression spring shaft hole 42310 for the mandrel 424 to pass through. The receiving member 422 elastically abuts against the compression spring center portion 4231 of the compression spring 423. The compression spring center portion 4231 may be designed as a quadrilateral region, and the compression spring extension portions 4232 may be configured as a long strip structure, and the width of the compression spring extension portions 4232 may gradually decrease along the direction away from the compression spring center portion 4231. At the same time, the outer end of the compression spring extension portion 4232 is provided with a bent abutment portion 4233, which elastically abuts against the moving spring 421.

[0195] In one embodiment, the mandrel 424 includes a first shaft segment, a second shaft segment, and a limiting shaft end connected in sequence, with the diameters of the first and second shaft segments being different. Therefore, the diameters of both the first and second shaft segments can be designed to match the dimensions of the compression spring shaft hole 42310 and the moving spring shaft hole (i.e., the through hole on the moving spring 421 for the mandrel 424 to pass through), for example, with an appropriate clearance fit. In one embodiment, the diameter of the first shaft segment is smaller than the diameter of the second shaft segment.

[0196] At this time, the first shaft segment can be movably inserted through the spring shaft hole 42310 of the spring plate 423, and the first shaft segment is fixedly connected to the receiving member 422. The second shaft segment can be movably inserted through the spring shaft hole of the movable spring plate 421. The limiting shaft end has a larger structural size, so that the limiting shaft end can make limiting contact with the movable spring plate 421 on the side of the movable spring plate 421 away from the spring plate 423, preventing the movable spring plate 421 and the spring plate 423 from detaching from the spindle 424 and ensuring the assembly stability of the component.

[0197] The first shaft section extends out of the receiving member 422 and is riveted to it. Optionally, as shown... Figure 24 As shown, the groove wall of the recess 4121b facing the through hole 4121a has at least two receiving grooves, which are used to receive the free end of the corresponding first shaft segment (i.e., the end of the first shaft segment away from the limiting shaft end). The recess 4121b can avoid the free end of the first shaft segment, so that the receiving member 422 can abut against the groove wall of the recess 4121b, which can prevent the moving contact assembly 42 from shaking in the length direction of the moving member 41 and ensure the secure installation of the moving contact assembly 42 on the moving member 41.

[0198] See also Figure 24 The moving spring mounting cavity 4121 is provided with a stop portion 4122, which is located at the junction between the through hole portion 4121a and the groove portion 4121b and abuts against the receiving member 422. The stop portion 4122 can limit the receiving member 422 of the moving contact assembly 42 to be located in the groove portion 4121b, preventing the moving contact assembly 42 from shaking in the length direction of the moving member 41.

[0199] Combination Figure 2 , Figure 3 , Figure 5 and Figure 17 As shown, in some embodiments of this application, the relay 1000 may further include a monitoring static contact assembly 73. A monitoring fixing part 19 is provided in the contact cavity 102, and the monitoring static contact assembly 73 is assembled in the monitoring fixing part 19 so that the monitoring static contact assembly 73 is assembled in the contact cavity 102. The monitoring static contact assembly 73 includes a first monitoring element 71 and a second monitoring element 72. When the monitoring static contact assembly 73 is assembled in the contact cavity 102, the first monitoring element 71 and the second monitoring element 72 overlap and contact in the length direction of the relay 1000. The moving member 41 is also provided with a separating arm 415. When the transmission assembly 22 drives the moving member 41 to move along the length direction of the relay 1000, the separating arm 415 is configured to drive the first monitoring element 71 to move, ultimately causing the first monitoring element 71 and the second monitoring element 72 to switch from an overlapping state to a separated state. It is important to understand that when the first monitoring element 71 and the second monitoring element 72 are in an overlapping state, a closed circuit is formed between them; when they are in a separated state, an open circuit is formed. Thus, by controlling the opening or closing of the connection between the first monitoring element 71 and the second monitoring element 72, it is possible to determine whether the electromagnet core assembly 21 responds to the input signal and drives the transmission assembly 22.

[0200] See Figure 1As shown, in some embodiments of this application, the relay 1000 further includes an outer housing 8, which has an encapsulation space. The encapsulation space is adapted to completely accommodate the base 1, and when the base 1 is disposed in the encapsulation space, the outer housing 8 covers the magnetic circuit cavity 101.

[0201] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0202] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay (1000), characterized in that, include: The base (1) includes a shell (11) and a first partition (12). The first partition (12) is disposed inside the shell (11) to divide the shell (11) into a magnetic circuit cavity (101) and a contact cavity (102) that are independent of each other in a first direction. The first partition (12) is provided with a linkage channel (120) that connects the magnetic circuit cavity (101) and the contact cavity (102) and extends along a second direction. The contact cavity (102) is provided with a stationary spring fixing part (13) and a moving spring assembly part (14). A magnetic circuit system (2) is assembled in the magnetic circuit cavity (101); A static contact assembly (3) is assembled on the static spring fixing part (13); Contact system (4), which is movably mounted to the spring assembly (14) along the second direction; The magnetic circuit system (2) is connected to the contact system (4) via the linkage channel (120). The magnetic circuit system (2) is configured to drive the contact system (4) to move along the second direction in response to an input signal, so that the contact system (4) selectively switches contact with the static contact component (3). The first direction is perpendicular to the second direction.

2. The relay (1000) according to claim 1, characterized in that, The magnetic circuit system (2) includes an electromagnet core assembly (21) and a transmission assembly (22). The electromagnet core assembly (21) is assembled in the magnetic circuit cavity (101), and the transmission assembly (22) is movably assembled in the electromagnet core assembly (21). The transmission assembly (22) is connected to the contact system (4) through the linkage channel (120). The electromagnet core assembly (21) is configured to drive the transmission assembly (22) to move along the second direction in response to an input signal.

3. The relay (1000) according to claim 2, characterized in that, The electromagnet core assembly (21) includes: A yoke (211) is provided with a magnetic circuit space (2110) inside the yoke (211); Two permanent magnets (212) are arranged at intervals along the second direction on the yoke (211) and fixed to the yoke (211). Each permanent magnet (212) has a first magnetic pole surface and a second magnetic pole surface arranged opposite to each other. The two second magnetic pole surfaces are arranged opposite to each other and have the same polarity. Two coil assemblies (213) are provided in the magnetic circuit space (2110) and spaced apart along the second direction. Each coil assembly (213) includes a wire frame (2131), a coil unit (2132), and a wiring unit (214). The coil unit (2132) is disposed on the wall of the wire frame (2131) and has a coil space (21320) inside. The wiring unit (214) is disposed on the wire frame end plate of the wire frame (2131). The coil unit (2132) is connected to the wiring unit (214), and the wiring units (214) of the two coil assemblies (213) are electrically connected. One of the wiring units (214) is used to be electrically connected to a first power source to receive the input signal. The transmission assembly (22) is movably mounted in two adjacent coil spaces (21320), and the coil assembly (213) is configured to drive the transmission assembly (22) to move between the two permanent magnets (212) in response to the input signal.

4. The relay (1000) according to claim 3, characterized in that, The base (1) further includes a second separator (15), which is disposed within the magnetic circuit cavity (101) to divide the magnetic circuit cavity (101) into a first sub-magnetic circuit cavity (101a) and a second sub-magnetic circuit cavity (101b) that are independent of each other in the second direction. The yoke (211) is assembled in the first sub-magnetic circuit cavity (101a), and the outer peripheral surface of the yoke (211) abuts against the inner peripheral wall of the first sub-magnetic circuit cavity (101a). The electromagnet core assembly (21) further includes a lead-out unit (215), and the wiring unit (214) is disposed on the base (1) and extends along the first direction. The wiring unit (214) is electrically connected to the wiring unit (214) extending into the second sub-magnetic circuit cavity (101b).

5. The relay (1000) according to claim 3, characterized in that, The electromagnet core assembly (21) further includes two striker structures (216), each of the permanent magnets (212) being fixedly assembled to the yoke (211) via one of the striker structures (216); wherein, the striker structure (216) includes: A connecting segment (2161) connects the permanent magnet (212) to the yoke (211); The impact section (2162) protrudes from the side of the permanent magnet (212) away from the connecting section (2161) and can collide with the transmission assembly (22) so that the transmission assembly (22) does not collide with the permanent magnet (212).

6. The relay (1000) according to claim 5, characterized in that, The permanent magnet (212) has a first pinhole (2120) through which the connecting section (2161) passes, and the diameter of the impact section (2162) is larger than the diameter of the first pinhole (2120).

7. The relay (1000) according to claim 6, characterized in that, The yoke (211) has a second pinhole (21122) opposite to the first pinhole (2120); The connecting section (2161) includes a first through part (21611), a second through part (21612), and a riveting part (21613) connected in sequence. The first through part (21611) passes through the first pin hole (2120), the second through part (21612) passes through the second pin hole (21122), and the riveting part (21613) is located on the side of the yoke (211) away from the permanent magnet (212) and can be deformed to form an upsetting head. The upsetting head cooperates with the impact section (2162) to connect the permanent magnet (212) and the yoke (211) together.

8. The relay (1000) according to claim 3, characterized in that, Each wiring unit (214) includes at least two wiring conductors (2141), a plurality of wiring conductors (2141) are arranged at intervals along the third direction, and each wiring conductor (2141) extends along the second direction. In the two wiring conductors (2141) connected in the second direction, one of the wiring conductors (2141) has a connector (2142) at its end, and the connector (2142) is connected to the other wiring conductor (2141). The connector (2142) includes: The device comprises a mating section (2142a) and a misaligned section (2142b), wherein the mating section (2142a) is arranged parallel to one of the wiring conductors (2141), and the misaligned section (2142b) is connected between the wiring conductor (2141) and the mating section (2142a), and the mating section (2142a) is also mated to the side surface of the other wiring conductor (2141).

9. The relay (1000) according to claim 3, characterized in that, The transmission assembly (22) includes: Iron core (221); A contact sleeve (222) having a sleeve cavity extending along the second direction, the contact sleeve (222) being sleeved and fitted onto the outside of the iron core (221) based on the sleeve cavity; wherein the contact sleeve (222) is configured to be movably fitted into the coil assembly (213); at least one of the outer wall of the contact sleeve (222) and the inner wall of the coil assembly (213) is provided with a plurality of contact protrusions (2221); A push arm (223) is connected to the contact sleeve (222) and is configured to be driven to the contact system (4).

10. The relay (1000) according to claim 1, characterized in that, The contact system (4) includes a movable member (41) and a moving contact assembly (42). The movable member (41) is movably mounted on the moving spring assembly (14) along the second direction. The moving contact assembly (42) is mounted on the movable member (41). The movable member (41) is connected to the magnetic circuit system (2) and is configured to be driven by the magnetic circuit system (2).

11. The relay (1000) according to claim 10, characterized in that, The contact cavity (102) is also provided with an inner cover plate fixing part (16); and The relay (1000) further includes: an inner cover plate (5), which is mounted on the inner cover plate fixing part (16), and the inner cover plate (5) makes limiting contact with the moving member (41). The inner cover plate (5) is configured to restrict the moving member (41) from moving in a direction away from the contact cavity (102).

12. The relay (1000) according to claim 10, characterized in that, The relay (1000) also includes: The outer cover plate (6) is provided in the contact cavity (102) and the outer cover plate fixing part (18) is installed on the outer cover plate fixing part (18).

13. The relay (1000) according to claim 12, characterized in that, The outer cover plate (6) makes limiting contact with the movable member (41), and the outer cover plate (6) is configured to restrict the movement of the movable member (41) in a direction away from the contact cavity (102); and / or, The outer cover plate (6) has several static spring lead-out holes (61).

14. The relay (1000) according to claim 10, characterized in that, The movable part (41) has a mounting hole (4123); and The moving contact assembly (42) is mounted on the moving member (41) via a locking member (43). The locking member (43) includes a pressure cap (431) and a plurality of elastic arms (432). The pressure cap (431) is located outside the moving member (41) and abuts against the moving member (41). The elastic arms (432) pass through the mounting hole (4123) and can hold the moving member (41) tightly by their own rebound force to lock it, so that the pressure cap (431) can press the moving contact assembly (42) onto the moving member (41).

15. The relay (1000) according to claim 14, characterized in that, The moving contact assembly (42) includes a moving spring (421) and a receiving member (422) connected together. The moving spring (421) has a plurality of moving contacts on the side opposite to the receiving member (422). The movable member (41) has a movable spring mounting cavity (4121), which includes a through hole (4121a) and a groove (4121b) that communicate with each other. The through hole (4121a) is used for the movable spring (421) to pass through. The pressure cap (431) can press the receiving member (422) into the groove (4121b) through the slot of the groove (4121b).

16. The relay (1000) according to claim 1, characterized in that, The relay (1000) further includes: a monitoring static contact assembly (7), wherein a monitoring fixing part (19) is provided in the contact cavity (102), and the monitoring static contact assembly (7) is assembled in the monitoring fixing part (19); wherein the monitoring static contact assembly (7) includes a first monitoring element (71) and a second monitoring element (72), and the first monitoring element (71) and the second monitoring element (72) are in contact with each other in the second direction; When the contact system (4) moves along the second direction, the contact system (4) is configured to drive the first monitoring element (71) to move to separate from the second monitoring element (72).

17. The relay (1000) according to any one of claims 1 to 16, characterized in that, The relay (1000) further includes: an outer housing (8), the outer housing (8) having an encapsulation space inside, the encapsulation space completely accommodating the base (1), and when the base (1) is disposed in the encapsulation space, the outer housing (8) covers the magnetic circuit cavity (101).

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