relay

Abstract

The application relates to a relay, which comprises a driving mechanism, the driving mechanism comprising a base and two movable contact assemblies, the two movable contact assemblies being arranged on the base respectively, and each movable contact assembly being capable of being connected to an external load circuit; a cover mechanism, the cover mechanism comprising two ceramic covers, the two ceramic covers being arranged on the two movable contact assemblies respectively; wherein the driving mechanism can drive the base and the two movable contact assemblies to move along a preset path synchronously, so as to realize the on-off control of the two movable contact assemblies on the two external load circuits. The two movable contact assemblies are independently arranged in the two corresponding ceramic covers, so that each ceramic cover can provide good high-low voltage insulation protection for the movable contact assembly arranged in the ceramic cover, the two ceramic covers can effectively isolate the two movable contact assemblies, and the voltage insulation performance of the relay is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of electrical control devices, and in particular to a relay. Background Technology

[0002] A relay is an electronically controlled device that uses the magnetic field generated by the energized coil assembly to drive the push rod assembly, causing the moving and stationary contacts to close, thereby controlling the circuit. It plays a role in automatic adjustment, safety protection, and circuit switching in the circuit.

[0003] Typically, high-voltage relays use ceramic insulating covers to isolate the moving and stationary contacts. In related technologies, some high-voltage relays can connect to multiple (two or more) loads. These relays often have multiple sets of moving and stationary contacts, which presents significant challenges to the high and low voltage withstand insulation. Either the withstand insulation performance fails to meet requirements, or the structure becomes overly complex. Utility Model Content

[0004] Therefore, it is necessary to provide a relay to address the problems of high processing difficulty and cost of traditional technologies, which affect operational reliability and the protective effectiveness of protective gases.

[0005] This application discloses a relay comprising:

[0006] The driving mechanism includes a base and two moving contact components, the two moving contact components are respectively disposed on the base, and each moving contact component can be connected to an external load circuit.

[0007] The cover mechanism includes two ceramic covers, which are respectively and correspondingly cover the two moving contact components;

[0008] The driving mechanism can drive the base and cause the two moving contact components to reciprocate synchronously along a preset path, thereby enabling the two moving contact components to control the on / off state of the two external load circuits.

[0009] In this relay design, two moving contact components are mounted on the base of the drive mechanism, and each moving contact component can be connected to an external load circuit. Therefore, the relay can simultaneously connect to multiple (at least two) external load circuits. Furthermore, by designing the housing mechanism to include two ceramic covers, each ceramic cover can be placed over a corresponding moving contact component. Thus, when the relay is operating, the drive mechanism can drive the base to synchronously reciprocate the two moving contact components along a preset path, thereby achieving on / off control of two external load circuits using the two moving contact components. Compared to traditional relays, firstly, this application employs two independently mounted moving contact components within corresponding ceramic housings. This allows each ceramic housing to provide excellent high and low voltage withstand voltage insulation protection for its internally mounted moving contact component. The two ceramic housings effectively isolate the two moving contact components, significantly improving the relay's withstand voltage insulation performance. Secondly, related technologies use only one large-sized ceramic housing, which suffers from difficulties in molding, low molding precision, and poor precision controllability. This solution, however, utilizes a dual-cavity structure design with two smaller ceramic housings, allowing for a smaller individual ceramic housing size. The smaller size helps reduce the processing and molding difficulty and manufacturing cost of the ceramic cover, and improves the dimensional accuracy of the product. Since the dimensional accuracy of each ceramic cover is improved, the consistency of individual dimensions of multiple ceramic covers in the same batch can be ensured. Furthermore, the two moving contact components are isolated by two ceramic covers, which improves safety performance and significantly reduces the use of plastic parts inside the cover. For example, there is no need to use plastic partitions to increase the creepage distance, which helps to reduce dielectric loss and increase dielectric strength. It can also reduce the gas released from the plastic, ensure the purity of the protective gas in the cavity of the ceramic cover, and avoid affecting the protective performance of the protective gas.

[0010] The technical solution of this application will be further described below:

[0011] In one embodiment, the relay further includes a frame and a yoke plate. The frame is mounted on the yoke plate and is located above the yoke plate and between the ceramic cover and the yoke plate. The frame has two through holes, which correspond one-to-one with the ceramic covers. Each ceramic cover is sealed to the frame in a manner corresponding to the mounting holes. Each ceramic cover, together with the frame and the yoke plate, forms a pressure-resistant cavity.

[0012] In one embodiment, each of the ceramic covers has a contact cavity inside, which communicates with the mounting hole to form the pressure-resistant cavity, and the two pressure-resistant cavities are connected in the area between the frame and the yoke plate.

[0013] In one embodiment, the base is located between the frame and the yoke plate, the movable contact component extends into the ceramic cover through the mounting hole, and the movable contact component is capable of longitudinal reciprocating motion within the contact cavity of the ceramic cover under the drive of the base.

[0014] In one embodiment, the wall of the mounting hole protrudes in a direction away from the yoke plate to form an annular mounting portion, the ceramic cover is welded to the annular mounting portion, and the annular mounting portion is deformable to absorb the welding stress of the ceramic cover.

[0015] In one embodiment, the two mounting holes are symmetrically arranged on the frame piece.

[0016] In one embodiment, the relay further includes an auxiliary contact mechanism, which includes an auxiliary contact assembly and an auxiliary moving spring. The auxiliary contact assembly is mounted on the frame, and the auxiliary moving spring is mounted on the base. Under the drive of the base, the auxiliary moving spring can contact or separate from the auxiliary contact assembly.

[0017] In one embodiment, the frame is provided with an outwardly extending first mounting portion, and the auxiliary contact assembly is mounted on the first mounting portion.

[0018] In one embodiment, the first mounting part is a mounting arm protruding from the frame piece, the mounting arm having a connection hole, and the auxiliary contact assembly being mounted in the connection hole.

[0019] In one embodiment, the auxiliary contact assembly includes an auxiliary contact and an insulator, the auxiliary contact being hermetically inserted into the insulator, and the insulator being hermetically welded to the connection hole.

[0020] In one embodiment, the wall of the connecting hole extends away from the yoke plate to form an annular protrusion, the insulator is welded to the upper end face of the annular protrusion, and the annular protrusion is deformable to absorb the welding stress of the insulator and the annular protrusion.

[0021] In one embodiment, the frame includes a main body and an annular mating part, the annular mating part surrounding the outer periphery of the main body, and the main body protruding outwardly is provided with the first mounting part.

[0022] In one embodiment, the frame piece includes a main body and an annular mating part, the annular mating part surrounds the outer periphery of the main body, the main body has the mounting hole, the first mounting part is a partition, the frame piece has a through hole extending vertically, the partition divides the through hole into two mounting holes, and the connecting hole is disposed on the partition.

[0023] The wall of the mounting hole protrudes in a direction away from the yoke plate to form an annular mounting portion.

[0024] In one embodiment, the surface of the partition facing the yoke plate is recessed in a direction away from the yoke plate to form an avoidance groove, which is used to increase the movement space of the base.

[0025] In one embodiment, the auxiliary contact mechanism further includes an auxiliary component having an embedded portion disposed inside the base. The auxiliary moving spring includes a second mounting portion and a contact portion connected to each other. The second mounting portion is embedded inside the base, and the contact portion extends outside the base for contacting or separating from the auxiliary contact.

[0026] In one embodiment, the base, the auxiliary component, and the auxiliary moving spring are integrally formed;

[0027] The embedded part and the second mounting part are in direct contact inside the base and are stacked on top of each other, and the embedded part is arranged along the direction of the second mounting part.

[0028] In one embodiment, the auxiliary component is made of metal, and the strength of the auxiliary component is greater than the strength of the auxiliary moving spring.

[0029] In one embodiment, two contact portions are provided and are respectively connected to opposite sides of the second mounting portion. The second mounting portion is integrally formed with the base, and the two contact portions extend to the outside of opposite sides of the base.

[0030] In one embodiment, the auxiliary component further has a functional portion connected to the embedded portion, the functional portion extending to the outside of the base and overlapping with the contact portion.

[0031] In one embodiment, the functional part is stacked above the contact portion; or, the functional part is stacked below the contact portion.

[0032] In one embodiment, the end face of the functional part away from the base and facing the contact part is provided with a rounded corner transition or a curved surface transition.

[0033] In one embodiment, the contact portion includes a contact piece and a bent piece connected together, the contact piece being disposed further away from the base than the bent piece, and the side of the bent piece away from the contact piece being connected to the second mounting portion.

[0034] In one embodiment, the bent piece is configured to form an arched protrusion with a uniform transition between the second mounting portion and the contact piece.

[0035] In one embodiment, the contact portion further includes an auxiliary contact piece, which is disposed on the surface of the contact piece facing the auxiliary contact point, and is used to contact or separate from the auxiliary contact point;

[0036] Wherein, the thickness of the auxiliary contact piece is greater than the thickness of the contact piece; and / or, the structural strength of the auxiliary contact piece is greater than the structural strength of the contact piece.

[0037] In one embodiment, the drive mechanism further includes a mounting member mounted on the base, the mounting member having a loading portion extending outside the base, and the auxiliary moving spring being riveted to the loading portion.

[0038] In one embodiment, the mounting member is configured as a riveting member, the loading part is provided with a rivet, the auxiliary moving spring is provided with a riveting hole, and the rivet passes through the riveting hole to be riveted and fixed with the auxiliary moving spring;

[0039] And / or, the mounting component is configured as a riveting component, the loading part has a riveting hole, the auxiliary moving spring is provided with a rivet, and the rivet passes through the riveting hole to be riveted and fixed to the loading part.

[0040] In one embodiment, the auxiliary moving spring and the loading part are provided with two riveting positions, which are symmetrically arranged on both sides of the loading part;

[0041] And / or, the mounting component is made of metal, the base is made of plastic, and the mounting component and the base are integrally formed;

[0042] And / or, both the auxiliary moving spring and the mounting component are made of metal, the thickness of the mounting component is greater than the thickness of the auxiliary moving spring, or the structural stiffness of the mounting component is greater than the structural stiffness of the auxiliary moving spring.

[0043] In one embodiment, the auxiliary moving spring includes a connecting portion and a contact portion, the connecting portion being connected to the contact portion and the connecting portion being connected to the loading portion, and the contact portion being used to contact or separate from the auxiliary contact.

[0044] In one embodiment, the loading portion is stacked on top of the connecting portion;

[0045] The end face of the loading part away from the base and facing the connecting part is provided with a curved transition structure.

[0046] In one embodiment, two of each of the loading part, the connecting part, and the contact part are provided and assembled in a one-to-one correspondence. One set of the loading part, the connecting part, and the contact part protrudes and is provided on one side of the base, and the other set of the loading part, the connecting part, and the contact part protrudes and is provided on the other side of the base.

[0047] The auxiliary moving spring also includes a connecting part, which is connected between the two connecting parts and attached to the base, and the connecting part has an assembly through hole;

[0048] The drive mechanism also includes a push rod, which passes through the mounting through hole, with one end of the push rod mounted on the base and the other end of the push rod extending outward toward the base.

[0049] In one embodiment, two of the moving contact components are symmetrically arranged on the base.

[0050] In one embodiment, the drive mechanism further includes a push rod assembly that is throttle connected to the base, a contact cavity is formed inside the ceramic cover, and an extension groove is recessed in the yoke plate that communicates with the contact cavity and is configured to expand the longitudinal spatial dimension of the contact cavity.

[0051] The base can be supported on the bottom wall of the extension groove, and the push rod assembly can drive the base to reciprocate longitudinally within the contact cavity and the extension groove.

[0052] In one embodiment, the base and the sidewall of the extension groove are fitted with a clearance, such that the orthographic projection of the base along its direction of movement falls completely into the cavity of the extension groove.

[0053] In one embodiment, the auxiliary contact mechanism includes an auxiliary moving spring mounted on the base, and the push rod assembly is capable of driving the base to move the auxiliary moving spring in a longitudinal reciprocating motion without interference within the extension groove and / or the contact cavity.

[0054] In one embodiment, the auxiliary moving spring includes a first contact portion and a second contact portion extending from opposite sides of the base. The sidewall of the extension groove is provided with a first clearance recess and a second clearance recess, and the first clearance recess is correspondingly provided with the first contact portion and the second clearance recess is correspondingly provided with the second contact portion.

[0055] In one embodiment, the yoke plate includes an annular plate portion and an extension portion. The annular plate portion is a plate-shaped member with a through opening in the middle, and the extension portion is a concave member with the extension groove. The extension portion is connected to the annular plate portion in such a way that the extension groove corresponds to and communicates with the through opening.

[0056] In one embodiment, the annular plate portion and the extension portion are an integral structure; or, the annular plate portion is sealed and welded to the extension portion.

[0057] In one embodiment, the extension portion includes a carrier plate portion and a surrounding plate portion, the carrier plate portion and the annular plate portion being spaced apart, the surrounding plate portion being connected between the carrier plate portion and the annular plate portion, and the annular plate portion surrounding the outer periphery of the surrounding plate portion; wherein, the carrier plate portion and the surrounding plate portion cooperate to form the extension groove.

[0058] In one embodiment, the carrier plate portion has a mounting through hole, and the push rod assembly includes a push rod connected to the base, the push rod being movably inserted into the mounting through hole.

[0059] In one embodiment, the carrier plate portion and the surrounding plate portion and / or the surrounding plate portion and the annular plate portion are an integral structure.

[0060] In one embodiment, the relay further includes two pairs of main contacts, one pair of which is mounted on one of the ceramic covers and is correspondingly configured to contact or separate from one of the moving contact components; the other pair of main contacts is mounted on the other ceramic cover and is correspondingly configured to contact or separate from the other moving contact component.

[0061] In one embodiment, the relay further includes a housing and an adapter, the main contact being housed within the housing, one end of the adapter being connected to the main contact, and the other end of the adapter extending outside the housing for soldering to an external load circuit.

[0062] In one embodiment, the housing has an interior cavity, and the housing also has a first extension hole that communicates with the mounting cavity;

[0063] The main contact is built into the mounting cavity, and the other end of the adapter extends to the outside of the housing via the first extension hole.

[0064] In one embodiment, the adapter includes a first adapter piece and a second adapter piece, the first adapter piece and the second adapter piece being connected at an angle, the first adapter piece being welded to the main contact, and the second adapter piece passing through the first protrusion hole and at least partially protruding from the outside of the housing.

[0065] In one embodiment, the portion of the second adapter plate extending outside the housing can be soldered to an external PCB board via through-hole soldering.

[0066] In one embodiment, the housing has a cover, the first protruding hole is formed in the cover, and the portion of the second adapter piece extending outside the housing is perpendicular to the cover.

[0067] In one embodiment, the cover has a first connection area, which is rectangular in shape, and four main contacts are arranged in a rectangular shape, with the four main contacts corresponding to the first connection area.

[0068] The adapter is provided with four parts, which are assembled one-to-one with the main contact. There are four first protruding holes, which are respectively arranged at the four apex corners of the first connection area. The second adapter pieces of the four adapters pass through the first protruding holes one-to-one.

[0069] In one embodiment, all four adapters are high-voltage connectors, the relay also includes a low-voltage connector, the housing cover also has a second connection area connected to the first connection area, the second connection area has a second protrusion hole, a portion of the low-voltage connector is installed in the mounting cavity, the remaining portion of the low-voltage connector passes through the second protrusion hole and extends to the outside of the housing, and the high-voltage connector and the low-voltage connector can be soldered together to the external PCB board by through-hole soldering.

[0070] In one embodiment, the low-pressure connector and the high-pressure connector are arranged on the same side of the housing.

[0071] In one embodiment, the same side is the side of the housing facing the main contact.

[0072] In one embodiment, the cover further has an insulating partition connecting the first connection area and the second connection area and protruding outwards from the outer casing. The high-voltage connector and the low-voltage connector are respectively arranged on opposite sides of the insulating partition.

[0073] In one embodiment, each of the moving contact components includes a moving contact piece, the opposite ends of which are used to contact a corresponding pair of main contacts to achieve an electrical connection. Attached Figure Description

[0074] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0075] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0076] Figure 1 This is an isometric structural diagram of a relay according to one embodiment.

[0077] Figure 2 for Figure 1 A schematic diagram of the internal structure of a relay.

[0078] Figure 3 for Figure 2 The diagram shows a simplified representation of the structure.

[0079] Figure 4 This is a schematic diagram of the assembly structure of the drive mechanism and part of the auxiliary contact mechanism in one embodiment.

[0080] Figure 5 for Figure 3 A schematic diagram of the main structure.

[0081] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure at point AA.

[0082] Figure 7 for Figure 5 A schematic diagram of the cross-sectional structure at point BB.

[0083] Figure 8 for Figure 7 A schematic diagram of the local structure at point C.

[0084] Figure 9 This is an assembly structure diagram of the cover mechanism and frame piece according to one embodiment.

[0085] Figure 10 for Figure 9 A structural diagram viewed from below.

[0086] Figure 11 This is a schematic diagram of the frame structure of one embodiment.

[0087] Figure 12 This is a schematic diagram of the structure of the yoke plate in one embodiment.

[0088] Figure 13 This is a schematic diagram of the structure of the auxiliary moving spring and the mounting component being riveted together in one embodiment.

[0089] Figure 14 for Figure 13 A top-view structural diagram.

[0090] Figure 15 for Figure 14 A schematic diagram of the cross-sectional structure at point DD.

[0091] Figure 16 for Figure 14 A schematic diagram of the cross-sectional structure at the EE section.

[0092] Figure 17 for Figure 13 A schematic diagram of the structure from another perspective after the yoke plate is removed from the central section.

[0093] Figure 18 This is a schematic diagram of the structure of an auxiliary moving spring according to one embodiment.

[0094] Explanation of reference numerals in the attached figures:

[0095] 100. Relay; 10. Drive mechanism; 11. Base; 12. Moving contact assembly; 13. Mounting part; 131. Loading part; 132. Rivet; 14. Push rod assembly; 141. Push rod; 20. Cover mechanism; 21. Ceramic cover; 211. Contact cavity; 30. Frame plate; 30a. Through hole; 31. Mounting hole; 31a. Annular mounting part; 32. Connecting hole; 321. Annular protrusion; 33. Main body; 34. Annular mating part; 35a. First mounting part; 35. Partition plate; 351. Clearance groove; 40. Yoke plate; 41. Extension groove; 411. First clearance recess; 412. Second clearance recess; 42. Annular plate part; 43. Carrier plate part; 431. Mounting through hole; 44. Enclosure part; 50. Auxiliary contact mechanism; 51. Auxiliary contact group Components; 511, Auxiliary contact; 512, Insulator; 52, Auxiliary moving spring; 521, Second mounting part; 522, Contact part; 5221, Contact piece; 5222, Bending piece; 5223, Auxiliary contact piece; 523, Connecting part; 5231, Riveting hole; 524, Connecting part; 5241, Assembly through hole; 525, First contact piece part; 526, Second contact piece part; 53, Auxiliary component; 531, Embedded part; 532, Functional part; 5321, Rounded corner transition or curved surface transition; 60, Main contact; 70, Housing; 71, First protruding hole; 72, Housing cover; 721, First connection area; 722, Second connection area; 73, Second protruding hole; 74, Insulating partition; 80, Adapter; 81, First adapter piece; 82, Second adapter piece; 90, Low-voltage connector. Detailed Implementation

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] See Figure 1 The relay 100 described in one embodiment of this application can be any of the following: a high-voltage DC relay, a high-voltage AC relay, etc., and can be flexibly selected according to actual needs.

[0103] Please continue reading. Figure 3 , Figure 4 and Figure 6 For example, the relay 100 includes a drive mechanism 10 and a housing mechanism 20. The drive mechanism 10 is a power output component of the relay 100, used to output reciprocating power along a preset direction of the relay 100.

[0104] For example, the preset direction can refer to the longitudinal direction of relay 100, that is, the height direction of relay 100. Specifically... Figure 1 and Figure 6 The direction of arrow S in the diagram.

[0105] Please continue reading. Figure 4 , Figure 6 and Figure 13 Specifically, in this application, the drive mechanism 10 includes a base 11 and two moving contact components 12. The two moving contact components 12 are respectively disposed on the base 11, and each moving contact component 12 can be connected to an external load circuit.

[0106] Please continue reading. Figure 2 , Figure 3 , Figure 5 and Figure 9 The cover mechanism 20 includes two ceramic covers 21, which are respectively covered on the two moving contact components 12.

[0107] Among them, the drive mechanism 10 can drive the base 11 and drive the two moving contact components 12 to reciprocate synchronously along a preset path, so as to realize the on and off control of the two external load circuits by the two moving contact components 12.

[0108] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: In the relay 100 of this solution, by installing two moving contact components 12 on the base 11 of the drive mechanism 10 respectively, and each moving contact component 12 can be connected to one external load circuit, the use requirement of the relay 100 to connect multiple (at least two) external load circuits simultaneously can be met. Furthermore, by designing the cover mechanism 20 to include two ceramic covers 21, the two ceramic covers 21 can be respectively covered to the outside of a corresponding moving contact component 12. Therefore, when the relay 100 is working, the drive mechanism 10 can drive the base 11 to drive the two moving contact components 12 to reciprocate synchronously along a preset path, thereby realizing the on / off control of two external load circuits by means of the two moving contact components 12.

[0109] Compared to a traditional relay 100, firstly, this application employs two independently mounted moving contact components 12 within corresponding ceramic covers 21. This allows each ceramic cover 21 to provide excellent high and low voltage withstand voltage insulation protection for its internally mounted moving contact component 12. The two ceramic covers 21 effectively isolate the two moving contact components 12, significantly improving the withstand voltage insulation performance of the relay 100. Secondly, related technologies use only one large-sized ceramic cover 21, which suffers from difficulties in molding, low molding precision, and poor precision controllability. This solution, however, uses a dual-cavity structure design with two smaller ceramic covers 21, enabling the single ceramic cover 21 to... The size can be made smaller, which helps to reduce the processing and molding difficulty and manufacturing cost of the ceramic cover 21, and improve the product dimensional accuracy. Since the dimensional accuracy of each ceramic cover 21 is improved, the consistency of individual dimensions of multiple ceramic covers 21 in the same batch can be ensured. Furthermore, the two moving contact components 12 are isolated by two ceramic covers 21 respectively, which improves the safety performance and significantly reduces the use of plastic parts inside the cover. For example, it is not necessary to use plastic partitions to increase the creepage distance, which helps to reduce dielectric loss and increase dielectric strength. It can also reduce the gas released from the plastic, ensure the purity of the protective gas in the cavity of the ceramic cover 21, and avoid affecting the protective performance of the protective gas.

[0110] In this application, the ceramic cover 21 made of ceramic material has both sufficient structural strength and excellent pressure resistance and insulation protection performance.

[0111] Please continue reading. Figure 3 , Figure 5 ,as well as Figures 9 to 11 Based on the above embodiments, the relay 100 further includes a frame plate 30 and a yoke plate 40. The frame plate 30 is mounted on the yoke plate 40 and is located above the yoke plate 40 and between the ceramic cover 21 and the yoke plate 40. The frame plate 30 has two mounting holes 31 arranged in a through structure. The mounting holes 31 are arranged one-to-one with the ceramic cover 21. Each ceramic cover 21 is sealed and connected to the frame plate 30 in a manner corresponding to the mounting holes 31. Each ceramic cover 21 is formed by surrounding the frame plate 30 and the yoke plate 40 to form a pressure-resistant cavity.

[0112] Therefore, after the components are installed, the yoke plate 40 serves to support the integrated ceramic cover 21 and the frame plate 30, so that the three components are arranged in a compact manner. The mounting holes 31 formed on the frame plate 30 facilitate the moving contact assembly 12 to extend into the pressure-resistant cavity through the mounting holes 31, and ensure that the moving contact assembly 12 always moves longitudinally back and forth inside the ceramic cover 21, ensuring that the ceramic cover 21 always provides it with pressure-resistant insulation protection.

[0113] The ceramic cover 21 is sealed to the frame plate 30 so that the pressure-resistant cavity formed by the ceramic cover 21, the frame plate 30 and the yoke plate 40 is a sealed cavity structure, thereby ensuring that the protective medium in the pressure-resistant cavity does not leak and affect the pressure-resistant insulation performance.

[0114] It should be noted that the ceramic cover 21 in this application is a semi-enclosed box structure with an opening on the side facing the frame 30, so that the contact cavity 211 inside the ceramic cover 21 can communicate with the mounting hole 31 through the opening.

[0115] To avoid affecting the installation and movement of the moving contact component 12, the shape and size of the opening are designed to match the shape and size of the mounting hole 31. For example, in this application, both the opening and the mounting hole 31 are rectangular structures.

[0116] Please continue reading. Figure 6 Furthermore, based on the above embodiments, each ceramic cover 21 is provided with a contact cavity 211 inside. It can be understood that the contact cavity 211 is the place where the moving contact assembly 12 and the main contact 60 come into contact or separate.

[0117] The contact cavity 211 communicates with the mounting hole 31 to form a pressure-resistant cavity, and the two pressure-resistant cavities are connected in the area between the frame plate 30 and the yoke plate 40. Therefore, the moving contact assembly 12 can reciprocate longitudinally within the pressure-resistant cavity formed by the communication between the contact cavity 211 and the mounting hole 31, thus gaining a larger movement space. The two pressure-resistant cavities are connected through the area between the frame plate 30 and the yoke plate 40, making them non-isolated independent cavities. This simplifies the structure; for example, only one vent pipe is needed for filling and discharging the protective medium. Also, because this structure allows the base 11 to be located in the connecting area of ​​the two pressure-resistant cavities, there is no need to consider the impact of the base 11's vertical movement on the sealing of the two isolated pressure-resistant cavities. Furthermore, it helps the protective medium to be better and more evenly distributed within the two pressure-resistant cavities, resulting in a more reliable pressure-resistant insulation protection effect.

[0118] Please continue reading. Figure 6 and Figure 7 Furthermore, in one embodiment, the base 11 is located between the frame 30 and the yoke plate 40. Driven by the base 11, the moving contact assembly 12 can reciprocate longitudinally within the contact cavity 211 of the ceramic cover 21. This allows the base 11 to fully utilize the space between the frame 30 and the yoke plate 40 for installation, making the assembly structure of the base 11, frame 30, and yoke plate 40 more compact, reducing the installation space occupied by the base 11, and facilitating the miniaturization design of the relay 100. When the relay 100 is in use, the drive mechanism 10 drives the base 11 to move, and the base 11 in turn drives the moving contact assembly 12 to reciprocate longitudinally within the contact cavity 211, thereby achieving contact or separation with the main contact 60.

[0119] Please continue reading. Figure 3 , Figure 5 , Figure 9 and Figure 11 Furthermore, based on any of the above embodiments, the wall of the mounting hole 31 protrudes in a direction away from the yoke plate 40 to form an annular mounting portion 31a, and the ceramic cover 21 is welded to the annular mounting portion 31a. The annular mounting portion 31a can deform to absorb the welding stress of the ceramic cover 21.

[0120] The ceramic cover 21 is welded onto the annular mounting portion 31a, which better ensures connection strength and sealing performance, thereby improving the durability and reliability of the relay 100. During welding, the annular mounting portion 31a deforms itself, absorbing the welding stress between itself and the ceramic cover 21. By eliminating residual stress, the crack resistance and toughness of the weld metal are improved, reducing the risk of brittle fracture. At the same time, it enhances resistance to stress corrosion. In addition, it reduces the risk of deformation or cracking caused by stress concentration, improving the reliability of the welding process.

[0121] Optionally, in order to reduce the processing difficulty of the mounting holes 31 and facilitate the installation of the two ceramic covers 21 on the frame plate 30, in an optional embodiment of this application, the two mounting holes 31 are symmetrically arranged on the frame plate 30. For example, the two mounting holes 31 are evenly and symmetrically arranged along the length direction of the frame plate 30.

[0122] Please continue reading. Figures 3 to 8 Due to factors such as possible machining dimensional errors, installation dimensional errors, and structural deformation of the moving contact assembly 12 and the main contact 60, the moving contact assembly 12 may fail to make effective contact with the main contact 60 after moving a preset stroke, thus affecting the normal operation of the relay 100. To address this, in one embodiment, the relay 100 further includes an auxiliary contact mechanism 50, which includes an auxiliary contact assembly 51 and an auxiliary moving spring 52. The auxiliary contact assembly 51 is mounted on the frame 30, and the auxiliary moving spring 52 is mounted on the base 11. Under the drive of the base 11, the auxiliary moving spring 52 can contact or separate from the auxiliary contact assembly 51.

[0123] By setting up a paired auxiliary moving spring 52 and an auxiliary contact assembly 51, the base 11 drives the auxiliary moving spring 52 to move, so that the moving contact assembly 12 moves at the same time as the auxiliary moving spring 52 moves synchronously. In this way, by means of the on-off cooperation of the auxiliary moving spring 52 and the auxiliary contact assembly 51 contacting or separating, the contact status between the moving contact assembly 12 and the main contact 60 can be detected and fed back, thereby improving the reliability of the relay 100.

[0124] Please continue reading. Figures 9 to 11In one optional embodiment, the frame 30 is provided with an outwardly extending first mounting portion 35a, and the auxiliary contact assembly 51 is mounted on the first mounting portion 35a. Therefore, the auxiliary contact assembly 51 can be loaded and fixed through the first mounting portion 35a without affecting the assembly of the frame 30 with the ceramic cover 21 and the yoke plate 40.

[0125] More specifically, the first mounting part 35a is a mounting arm protruding from the frame 30, and the mounting arm has a connection hole 32, in which the auxiliary contact assembly 51 is mounted. The structure of the mounting arm protruding is simple, easy to process and form, and the size of the mounting arm is controllable, avoiding occupying too much installation space inside the relay 100.

[0126] Instead of mounting it onto the yoke plate 40, the auxiliary contact assembly 51 is mounted onto the mounting arm of the frame plate 30. Since the space above the frame plate 30, away from the yoke plate 40, is spacious and ample, the installation of the auxiliary contact assembly 51 and the selection of the opening position for the connecting hole 32 are much easier, reducing the likelihood of installation interference with surrounding components. This significantly reduces the structural layout difficulty and cost of the auxiliary contact assembly 51. Furthermore, mounting the auxiliary contact assembly 51 into the connecting hole 32 of the frame plate 30 avoids drilling holes in the yoke plate 40, ensuring the structural integrity of the yoke plate 40 and guaranteeing its protection of the medium. The reliable sealing effectively eliminates the safety hazard of leakage of the protective medium due to poor sealing. Furthermore, in related technologies, when the auxiliary contact assembly 51 is installed on the yoke plate 40 and led outward, the lead-out structure needs to consider safety distances and part forming issues, which will occupy a large winding space, resulting in insufficient winding space or requiring an increase in the height of the relay 100 to meet the coil layout requirements. However, in this solution, the auxiliary contact assembly 51 is installed on the frame plate 30, which can obtain more ample winding space for arranging the coil, thus eliminating the need to increase the height of the relay 100 and facilitating the miniaturization design of the relay 100.

[0127] Please continue reading. Figure 3 , Figure 5 and Figure 8 Furthermore, based on the above embodiments, the auxiliary contact assembly 51 includes an auxiliary contact 511 and an insulator 512. The auxiliary contact 511 is hermetically inserted into the insulator 512, and the insulator 512 is hermetically welded to the connection hole 32.

[0128] In this application, to achieve sufficient structural strength and facilitate welding installation, both the yoke plate 40 and the frame plate 30 are made of metal. However, the auxiliary contact 511 is energized during operation, posing a risk of electric shock and damage to other components by conducting electricity from it to the frame plate 30 and yoke plate 40. To address this, the insulator 512 is first sealed and installed into the connection hole 32, and then the auxiliary contact 511 is sealed and inserted into the insulator 512. This ensures that the insulator 512 provides insulation and protection between the auxiliary contact 511 and the frame plate 30, preventing dangerous accidents such as electric shock. It also ensures a reliable seal between the auxiliary contact 511 and the frame plate 30, preventing the mounting hole 31 from becoming a potential leakage point for the protective medium.

[0129] The welding method is used to assemble and fix the insulator 512 to the frame 30. Compared with threaded connection, snap-fit, and adhesive connection, the welding method not only has high connection strength, allowing the insulator 512 to provide more reliable and stable support for the auxiliary contact 511, but also achieves better sealing performance and more effectively eliminates the hidden danger of potential leakage of the protective medium.

[0130] For example, in this application, the connecting hole 32 is a circular hole, so the insulator 512 adopts a cylindrical structure that matches the shape and size of the circular hole. Of course, in other optional embodiments, the connecting hole 32 can also be square, triangular, or other shapes. In this case, the insulator 512 can adopt a structural design that matches the shape of the connecting hole 32.

[0131] Optionally, the insulator 512 can be any material and type, including but not limited to ceramics and glass. The specific choice can be made flexibly according to actual needs, and no specific limitation is made here.

[0132] Please continue reading. Figure 7 Furthermore, based on the above embodiment, the hole wall of the connecting hole 32 extends away from the yoke plate 40 to form an annular protrusion 321. The insulator 512 is welded to the upper end face of the annular protrusion 321, and the annular protrusion 321 can deform to absorb the welding stress of the insulator 512 and the annular protrusion 321.

[0133] Thus, because the annular protrusion 321 has a certain protrusion height, its outer peripheral wall provides a larger welding area for welding and fixing the annular protrusion 321 to the insulator 512, thereby helping to improve the welding strength between the insulator 512 and the frame 30. Furthermore, compared to welding the insulator 512 on the flat surface of the frame 30, the welding torch head has more space for welding operations, significantly reducing welding difficulty and enhancing the machinability of the insulator 512 and the frame 30. In addition, the annular protrusion 321 can absorb the welding stress during the welding process between the insulator 512 and the annular protrusion 321 through its own deformation, thereby improving welding quality and eliminating quality defects such as welding cracks.

[0134] In this application, the thickness of the frame plate 30 is less than the thickness of the yoke plate 40. Therefore, since the thickness of the frame plate 30 is designed to be less than the thickness of the yoke plate 40, the welding time between the frame plate 30 and the insulator 512 can be shorter, and the welding intensity can be lower, thereby effectively protecting the insulator 512 from cracking and damage due to excessive welding temperature and excessive welding stress.

[0135] Furthermore, to facilitate the installation and positioning of the auxiliary contact 511 on the insulator 512 during installation, in one embodiment, a positioning protrusion is formed on the outer peripheral wall of the auxiliary contact 511. The positioning protrusion is located on the side of the insulator 512 away from the frame 30, and overlaps with the insulator 512. Therefore, during installation, the lower end of the auxiliary contact 511 is aligned and inserted into the mounting hole 31 of the insulator 512, and then the auxiliary contact 511 is continuously pressed downwards. The auxiliary contact 511 slides along the protrusion until the lower surface of the positioning protrusion abuts against the upper surface of the insulator 512 away from the frame 30. This achieves the installation and positioning of the auxiliary contact 511, ensuring that the auxiliary contact 511 stops precisely in the preset installation position, and ensuring that the auxiliary contact 511 can effectively contact or separate from the auxiliary moving spring 52 subsequently.

[0136] Optionally, the mounting hole 31 on the insulator 512 is a circular hole, and the corresponding auxiliary contact 511 is a round rod. This eliminates the need for a specific posture and angle for the auxiliary contact 511 to be inserted into the hole during installation, reducing the installation difficulty of the auxiliary contact 511. However, it should be noted that in other optional embodiments, the mounting hole 31 can also be any of the following: a square hole, an elliptical hole, etc. In this case, the auxiliary contact 511 can adopt a structural design that matches the shape of the mounting hole 31. The specific design can be flexibly selected according to actual needs, and will not be elaborated further here.

[0137] Please continue reading. Figure 9 and Figure 11Furthermore, in one embodiment, the frame piece 30 includes a main body portion 33 and an annular mating portion 34. The annular mating portion 34 surrounds the outer periphery of the main body portion 33, and the main body portion 33 has a first mounting portion 35a protruding outward. The main body portion 33 provides ample space for mounting the first mounting portion 35a to meet the needs of setting the first mounting portion 35a and mounting the ceramic cover 21. The annular mating portion 34 can meet the installation needs of assembling with the yoke plate 40.

[0138] Please continue reading. Figures 9 to 11 In one embodiment, the frame piece 30 includes a main body 33 and an annular mating part 34. The annular mating part 34 surrounds the outer periphery of the main body 33. The main body 33 has a mounting hole 31. The first mounting part 35a is a partition plate 35. The frame piece 30 has a through hole 30a that extends vertically. The partition plate 35 divides the through hole 30a into two mounting holes 31. A connecting hole 32 is provided on the partition plate 35. On the one hand, the mounting hole 31 and the extension groove 41 are aligned in the longitudinal direction of the relay 100, so the partition 35 can be spaced apart from the bottom wall of the extension groove 41 to define the travel space; on the other hand, by using the partition 35 to span between the first hole wall and the second hole wall of the through hole 30a, the through hole 30a can be divided into two mounting holes 31 with smaller diameters. At this time, the two mounting holes 31 can be assembled with the smaller ceramic cover 21 respectively. Compared with the use of a single ceramic cover 21 with a larger size, the smaller ceramic cover 21 has the advantages of easy molding, lower processing cost and higher precision. In addition, the contact cavities 211 of the two ceramic covers 21 are isolated from each other and can work independently, so that the moving contact components 12 installed in the two ceramic covers 21 have less mutual influence, further improving the insulation capability of the ceramic cover 21.

[0139] Please continue reading. Figure 11 In this application, the connection hole 32 is provided on the partition plate 35. This allows the connection hole 32 to be used to install the auxiliary contact assembly 51, while avoiding interference with the normal assembly of the frame plate 30 and the ceramic cover 21.

[0140] Furthermore, the wall of the mounting hole 31 protrudes in a direction away from the yoke plate 40 to form an annular mounting portion 31a. The annular mounting portion 31a provides a larger welding area required for welding with the ceramic cover 21, which helps to improve the welding strength with the ceramic cover 21 and reduce the difficulty of welding processing.

[0141] Please continue reading. Figure 7 and Figure 11Furthermore, in another embodiment, the surface of the partition 35 facing the yoke plate 40 is recessed in a direction away from the yoke plate 40 to form a relief groove 351, which is used to increase the movement space of the base 11. The relief groove 351, which is set as a concave structure, can further increase the distance between the partition 35 and the bottom wall of the extension groove 41, so as to provide the base 11 with a larger longitudinal travel space.

[0142] It should be noted that when the base 11 rises to the upper limit position, the base 11 is close to the partition 35. At this time, the base 11 can be partially inserted into the clearance groove 351 or completely inserted into the clearance groove 351. The specific choice can be made flexibly according to actual needs, and no specific limitation is made here.

[0143] Please continue reading. Figures 7 to 8 In addition, based on any of the above embodiments, the auxiliary contact mechanism 50 also includes an auxiliary member 53, which has an embedded portion 531 disposed inside the base 11. The auxiliary moving spring 52 includes a second mounting portion 521 and a contact portion 522 connected to each other. The second mounting portion 521 is embedded inside the base 11, and the contact portion 522 extends out of the base 11 for contacting or separating from the auxiliary contact 511.

[0144] During manufacturing, the second mounting portion 521 of the auxiliary moving spring 52 is embedded inside the base 11, while the contact portion 522 is left outside the base 11 to facilitate cooperation with the auxiliary contact 511. Simultaneously, an auxiliary component 53 is configured, and its embedded portion 531 is installed inside the base 11. In this way, the base 11, auxiliary component 53, and auxiliary moving spring 52 can be constructed as a single integral structure. On one hand, the portions of the second mounting portion 521 and the auxiliary component 53 installed inside the base 11 work together to act as a framework, thereby effectively... To improve the structural strength of the base 11, the base 11 is protected from deformation due to insufficient structural strength caused by long-term high-frequency stress. This ensures the accuracy of the movement stroke of the auxiliary moving spring 52, thereby ensuring that the contact part 522 of the auxiliary moving spring 52 can reliably contact or separate from the auxiliary contact 511. On the other hand, during injection molding, the auxiliary component 53 also plays an auxiliary positioning role for the auxiliary moving spring 52, preventing the auxiliary moving spring 52 from shifting position under molding pressure, liquid flow force, etc., which would affect the final molding position accuracy and cause product defects.

[0145] The base 11, auxiliary component 53, and auxiliary moving spring 52 are integrally molded structures. More specifically, the base 11, auxiliary component 53, and auxiliary moving spring 52 adopt an integral injection molding structure; that is, the base 11 is a plastic part, and during processing, the base 11, auxiliary component 53, and auxiliary moving spring 52 are integrally injection molded using an injection mold, which simplifies the production process and results in excellent overall structural performance.

[0146] Please continue reading. Figure 8 Based on the above embodiments, in one embodiment, the embedded part 531 and the second mounting part 521 are in direct contact and stacked inside the base 11, and the embedded part 531 is arranged along the direction of the second mounting part 521.

[0147] Therefore, during production, the embedded part 531 is embedded inside the base 11 to achieve integral molding of the auxiliary part 53 and the base 11, resulting in high connection strength and good firmness. Furthermore, the embedded part 531 and the second mounting part 521 are in direct contact and stacked inside the base 11, allowing the second mounting part 521 to limit the deformation or offset of the embedded part 531 during injection molding, thereby positioning the auxiliary moving spring 52 and preventing excessive positional displacement of the auxiliary moving spring 52 during injection molding, which could affect the finished product quality and normal use of the relay 100.

[0148] It should be noted that in this application, the embedded part 531 is arranged along the direction of the second mounting part 521. This is to ensure that the two have a more sufficient overlapping contact area, thereby ensuring that the auxiliary part 53 provides better positioning and reinforcement for the auxiliary moving spring 52.

[0149] Furthermore, in one embodiment, the auxiliary component 53 is made of metal, and the strength of the auxiliary component 53 is greater than the strength of the auxiliary moving spring 52. This design allows the auxiliary component 53 to reduce the degree of deformation and positional displacement of the auxiliary moving spring 52 during injection molding. Specifically, during injection molding, the flowing molten plastic will impact the auxiliary moving spring 52, which can easily cause bending deformation and positional displacement. Using a higher-strength auxiliary component 53 in layered contact with the auxiliary moving spring 52 can reinforce and position the auxiliary moving spring 52.

[0150] For example, in this application, the auxiliary moving spring 52 is a thin metal sheet, such as a copper sheet, to obtain good elastic force. In contrast, the auxiliary component 53 can be a thicker metal plate, which can provide sufficient structural strength to the base 11 and provide better auxiliary positioning effect for the auxiliary moving spring 52.

[0151] Please continue reading. Figures 7 to 8In one embodiment, two contact portions 522 are provided and are respectively connected to opposite sides of the second mounting portion 521. The second mounting portion 521 is integrally formed with the base 11, and the two contact portions 522 extend to the outside of opposite sides of the base 11. On the one hand, the second mounting portion 521 is integrally formed with the base 11 to obtain better bonding strength and structural performance between the auxiliary moving spring 52 and the base 11; on the other hand, by using one contact portion 522 extending to opposite sides of the base 11, the two contact portions 522 can simultaneously contact or separate from the corresponding auxiliary contacts 511, thereby constructing a two-auxiliary-contact-511 structure to improve the reliability of detection.

[0152] Please continue reading. Figure 8 In addition, based on any of the above embodiments, the auxiliary member 53 also has a functional part 532 connected to the embedded part 531, the functional part 532 extending to the outside of the base 11 and overlapping with the contact part 522.

[0153] Optionally, the functional part 532 and the embedded part 531 can be an integral structure or they can be detachably assembled, depending on the actual needs. For example, in this application, the functional part 532 and the embedded part 531 are integrated into one structure, which can ensure the overall structural performance and strength of the auxiliary component 53, while reducing the number of parts, reducing the number of production and assembly steps, and improving the production efficiency of the relay 100.

[0154] The functional part 532 extends to the outside of the base 11 and abuts against the contact part 522. The functional part 532 can provide support and positioning for the contact part 522, shorten the cantilever length of the contact part 522, and improve the reliability of the contact part 522 and the auxiliary contact 511 in contact for a long time and at high frequency.

[0155] Alternatively, the functional part 532 may be stacked above the contact part 522; or, the functional part 532 may be stacked below the contact part 522. Therefore, this allows for flexible selection based on specific product structure and performance requirements, enhancing the production flexibility of the relay 100.

[0156] For example, in the embodiment of this application where the functional part 532 is stacked on top of the contact part 522, when the contact part 522 contacts the auxiliary contact 511 and generates a pressing force, the deformation of the contact part 522 is not constrained by the functional part 532, allowing the contact part 522 to have a longer deformation length, making it easier for it to deform, so that the contact part 522 is not prone to irreversible deformation due to repeated deformation, thereby improving the reliability and durability of the auxiliary moving spring 52.

[0157] Furthermore, when the contact portion 522 moves away from the auxiliary contact 511, the contact portion 522 will swing back. At this time, the functional unit 532 can suppress the amplitude of the swing back of the contact portion 522, so that the contact portion 522 can stop swinging up and down as soon as possible, in order to prepare for the next contact between the contact portion 522 and the auxiliary contact 511.

[0158] Please continue reading. Figure 8 Furthermore, in one embodiment, the end face of the functional part 532 away from the base 11 and facing the contact part 522 is provided with a rounded corner transition or a curved surface transition 5321. On the one hand, the rounded corner transition or curved surface transition 5321 is easy to process and form, which helps to reduce processing difficulty and cost; on the other hand, the arc-shaped contour of the rounded corner transition or curved surface transition 5321 can better adapt to the bending deformation of the contact part 522, thereby always obtaining a small contact stress on the contact part 522 and ensuring the structural safety of the contact part 522.

[0159] Please continue reading. Figures 7 to 8 For example, in an optional embodiment, the contact portion 522 includes a contact piece 5221 and a bent piece 5222 connected to each other. The contact piece 5221 is disposed further away from the base 11 than the bent piece 5222. The side of the bent piece 5222 away from the contact piece 5221 is connected to the second mounting portion 521. The bent piece 5222 connects the second mounting portion 521 and the contact piece 5221 to provide excellent elasticity to the contact piece 5221, thereby ensuring reliable contact between the contact piece 5221 and the auxiliary contact 511 during long-term, high-frequency contact, and preventing deformation of the contact piece 5221, which would prevent the contact piece 5221 from making normal and effective contact with the auxiliary contact 511.

[0160] For example, the bending piece 5222 is configured to form an arched protrusion that forms a uniform transition between the second mounting part 521 and the contact piece 5221, and the number can be more than one; and when two or more bending pieces 5222 are provided, the protrusion direction of different bending pieces 5222 can be along the same direction of the thickness of the auxiliary moving spring 52, or they can be along different directions of the thickness of the auxiliary moving spring 52, and can be flexibly selected according to actual needs.

[0161] Please continue reading. Figures 7 to 8 In one embodiment, the contact portion 522 further includes an auxiliary contact piece 5223, which is mounted on the surface of the contact piece 5221 facing the auxiliary contact 511 and is used to contact or separate from the auxiliary contact 511.

[0162] The thickness of the auxiliary contact 5223 is greater than the thickness of the contact 5221; and / or the structural strength of the auxiliary contact 5223 is greater than the structural strength of the contact 5221.

[0163] Therefore, an auxiliary contact piece 5223 with greater thickness and higher structural strength is installed on the contact piece 5221 for contact and engagement with the auxiliary contact 511, which helps to improve the durability of the auxiliary moving spring 52.

[0164] Please continue reading. Figure 13 ,as well as Figures 15 to 17 In another embodiment, the drive mechanism 10 further includes a mounting member 13, which is mounted on the base 11 and has a loading portion 131 extending out of the base 11. An auxiliary moving spring 52 is riveted to the loading portion 131.

[0165] The base 11 is a basic component used to mount the integrated mounting component 13. After the mounting component 13 is installed on the base 11, the loading part 131 of the mounting component 13 extends out and remains outside the base 11. In this way, the auxiliary moving spring 52 can be connected with the loading part 131, thereby achieving assembly and fixation onto the base 11. This solution, by configuring the mounting component 13 on the base 11, realizes that the auxiliary moving spring 52 is assembled onto the base 11 by connecting with the mounting component 13. This installation method effectively replaces the traditional injection molding method, eliminating the inconvenience of integral molding of the auxiliary moving spring 52 and the base 11 caused by the use of injection molds, injection plastic, and other materials. Not only is the installation structure and method simple and easy to operate and implement, but the processing difficulty and cost are also greatly reduced, significantly improving manufacturability.

[0166] Please continue reading. Figure 13 , Figures 15 to 17 The auxiliary moving spring 52 is riveted and fixed to the loading part 131. This simplifies the installation method and structure of the auxiliary moving spring 52 and the loading part 131, and facilitates the installation and fixing of the auxiliary moving spring 52 to the base 11 during processing.

[0167] Furthermore, based on the above embodiments, the mounting component 13 is configured as a riveting component, the loading part 131 is provided with a rivet 132, the auxiliary moving spring 52 is provided with a riveting hole 5231, and the rivet 132 passes through the riveting hole 5231 to be riveted and fixed with the auxiliary moving spring 52.

[0168] Therefore, during installation, the rivet 132 can be inserted into the riveting hole 5231 and then riveted and fixed to the auxiliary moving spring 52, thereby completing the riveting and fixing of the auxiliary moving spring 52 to the mounting part 13, and realizing the assembly of the auxiliary moving spring 52 onto the base 11. The riveting process is simple, easy to implement, and has high connection strength.

[0169] Please continue reading. Figures 15 to 18As an alternative to the above embodiments, in another embodiment, the mounting member 13 is configured as a riveting member, the loading part 131 has a riveting hole 5231, and the auxiliary moving spring 52 is provided with a rivet 132, which passes through the riveting hole 5231 to be riveted and fixed with the loading part 131.

[0170] This embodiment achieves essentially the same technical effect as the above embodiment. The only difference lies in the arrangement of the rivet 132 and the rivet hole 5231. Therefore, it will not be described in detail here. Please refer to the above embodiment for understanding.

[0171] It should be noted that the loading part 131 and the connecting part 523 may not be provided with rivets 132 or rivet holes 5231 alone. In other words, the loading part 131 may be provided with rivets 132 and rivet holes 5231 at the same time, and the connecting part 523 may also be provided with rivets 132 and rivet holes 5231 at the same time, as long as the loading part 131 and the connecting part 523 can be riveted together by the rivets 132 and rivet holes 5231 arranged in alignment.

[0172] It should be noted that, in order to replace the traditional injection molding method, in addition to the riveting method mentioned above, the following embodiments can also be used.

[0173] Furthermore, the auxiliary moving spring 52 and the loading part 131 are provided with two riveting positions, which are symmetrically arranged on both sides of the loading part 131. That is, the auxiliary moving spring 52 and the loading part 131 are riveted and fixed by two sets of rivets 132 and rivet holes 5231.

[0174] This arrangement not only facilitates the installation of two rivets 132 on the loading part 131, but also forms two symmetrical riveting structures with the auxiliary moving spring 52, so that the auxiliary moving spring 52 is subjected to uniform force, and significantly improves the strength and firmness of the riveting between the auxiliary moving spring 52 and the loading part 131.

[0175] In one embodiment, the mounting component 13 is made of metal, and the base 11 is made of plastic. The mounting component 13 and the base 11 are integrally formed. This facilitates the manufacturing of the mounting component 13 and the base 11, and the resulting integral structure has high strength, ensuring a reliable connection between the mounting component 13 and the base 11.

[0176] In another embodiment, both the auxiliary moving spring 52 and the mounting member 13 are made of metal, and the thickness of the mounting member 13 is greater than the thickness of the auxiliary moving spring 52, or the structural stiffness of the mounting member 13 is greater than the structural stiffness of the auxiliary moving spring 52. This arrangement ensures that the mounting member 13 provides more reliable loading support for the auxiliary moving spring 52, guaranteeing the structural performance of the auxiliary moving spring 52, so that the auxiliary moving spring 52 is less likely to undergo irreversible deformation when it comes into contact with the auxiliary contact 511.

[0177] Please continue reading. Figures 15 to 18 In one embodiment, the auxiliary moving spring 52 includes a connecting portion 523 and a contact portion 522. The connecting portion 523 is connected to the contact portion 522 and is also connected to the loading portion 131. The contact portion 522 is used to contact or separate from the auxiliary contact 511. The connecting portion 523 and the contact portion 522 can be integrally formed or detachably assembled, depending on actual needs. For example, in this embodiment, the connecting portion 523 and the contact portion 522 are an integral structure, which ensures excellent structural performance of the auxiliary moving spring 52 while reducing the number of parts and improving the production and assembly efficiency of the relay 100.

[0178] The auxiliary moving spring 52 is a metal sheet, such as, but not limited to, a copper sheet. By connecting the connecting part 523 to the loading part 131, the auxiliary moving spring 52 is connected to the mounting part 13 and then assembled onto the base 11. The contact part 522 connected to the connecting part 523 is specifically used to make contact with the auxiliary contact 511 to realize the detection function of the auxiliary contact 511.

[0179] Furthermore, in another embodiment, along the height direction of the relay 100, the loading portion 131 is stacked above the connecting portion 523. By stacking the loading portion 131 above the connecting portion 523 and having it in contact with the connecting portion 523, the loading portion 131 can install and fix the connecting portion 523 and provide support and reinforcement for the contact portion 522, reducing the suspension length of the contact portion 522 and thus improving the structural strength and resistance to compression and deformation of the contact portion 522.

[0180] Furthermore, a curved transition structure is provided on the end face of the loading part 131 away from the base 11 and facing the connecting part 523. The curved transition structure can effectively reduce the local concentrated stress of the loading part 131 on the connecting part 523, avoid fatigue damage to the connecting part 523, and at the same time, the curved transition structure provides a clearance effect for the contact piece 5221, which is beneficial to the up and down swing of the contact piece 5221.

[0181] Optionally, the curved surface transition structure may adopt, but is not limited to, a rounded corner structure.

[0182] In one embodiment, two of each of the loading portion 131, connecting portion 523, and contact portion 522 are provided and assembled in a one-to-one correspondence. One set of loading portions 131, connecting portions 523, and contact portions 522 protrudes from one side of the base 11, and the other set protrudes from the other side of the base 11. By providing a set of loading portions 131, connecting portions 523, and contact portions 522 protruding towards opposite sides of the base 11, and by assembling the two sets of connecting portions 523 with the loading portions 131 respectively, the auxiliary moving spring 52 is installed and fixed at two points on both sides, greatly improving the stability and reliability of the installation of the auxiliary moving spring 52. In addition, two contact portions 522 can be simultaneously connected to two auxiliary contacts 511 in a one-to-one correspondence, and the detection reliability and accuracy of the constructed dual auxiliary contact 511 detection structure can be significantly improved.

[0183] Please continue reading. Figure 17 and Figure 18 The auxiliary moving spring 52 also includes a connecting part 524, which is connected between the two connecting parts 523 and attached to the base 11. The connecting part 524 has a mounting through hole 5241. The drive mechanism 10 also includes a push rod 141, which passes through the mounting through hole 5241. One end of the push rod 141 is mounted on the base 11, and the other end of the push rod 141 extends outward toward the base 11.

[0184] Connecting part 524 connects the two connecting parts 523, thereby connecting the two sets of connecting parts 523 and the loading part 131 into one unit, improving the overall structural performance of the auxiliary moving spring 52. By machining an assembly through hole 5241 on the connecting part 524, the push rod 141 mounted on the base 11 can pass through the assembly through hole 5241, thereby achieving non-interference assembly with the connecting part 524. At the same time, it allows the connecting part 524 to be attached to the bottom surface of the base 11, making the installation structure more compact and saving installation space. In addition, the contact between the connecting part 524 and the base 11 increases the contact support area between the auxiliary moving spring 52 and the base 11, which helps to improve the assembly stability and firmness of the auxiliary moving spring 52 and the base 11.

[0185] Please continue reading. Figure 4 , Figure 10 , Figure 11 and Figure 13 In this application, in order to accommodate installation with two symmetrically arranged mounting holes 31, in one embodiment, two moving contact components 12 are symmetrically disposed on the base 11. This ensures that the moving contact components 12 maintain a one-to-one correspondence with the mounting holes 31 and the contact cavities 211, and thus, driven by the base 11, the two moving contact components 12 can reciprocate longitudinally within their respective contact cavities 211 to contact or separate from the corresponding mounted main contacts 60.

[0186] Please continue reading. Figure 3 , Figure 5 , Figure 6 and Figure 12 In addition, in one embodiment, the drive mechanism 10 further includes a push rod assembly 14, which is connected to the base 11 in a transmission manner. A contact cavity 211 is formed inside the ceramic cover 21. An extension groove 41 is recessed in the yoke plate 40, which communicates with the contact cavity 211. The extension groove 41 is configured to expand the longitudinal spatial dimension of the contact cavity 211.

[0187] The base 11 can be supported on the bottom wall of the extension groove 41, and the push rod assembly 14 can drive the base 11 to reciprocate longitudinally within the contact cavity 211 and the extension groove 41.

[0188] The longitudinal direction of relay 100 refers to the height direction of relay 100, and it is also consistent with the movement direction of push rod assembly 14 and base 11.

[0189] The extension groove 41 communicates with the contact cavity 211, thereby expanding the longitudinal space of the contact cavity 211. Based on this, the push rod assembly 14 is assembled with the ceramic cover 21, allowing the base 11 to be supported on the bottom wall of the extension groove 41. In other words, driven by the push rod assembly 14, the base 11 can reciprocate within the longitudinal travel space constructed by the contact cavity 211 and the extension groove 41, and the base 11 can move into the interior of the extension groove 41 and contact its bottom wall. Compared to traditional technologies, because the extension groove 41 expands the longitudinal space of the contact cavity 211, the increased depth of the extension groove 41 provides a longer travel space for the longitudinal reciprocating motion of the base 11, providing a larger travel space for the base 11's movement. This eliminates the need to make the ceramic cover 21 larger to provide a greater height space for the contact cavity 211, reducing the processing difficulty and cost of the ceramic cover 21. Simultaneously, the smaller size of the ceramic cover 21 also helps improve its processing and forming dimensional accuracy.

[0190] It is necessary to explain that, in order to ensure that the base 11 can make full use of the groove depth of the extension groove 41 to obtain sufficient travel space, in one embodiment, the base 11 and the groove sidewall of the extension groove 41 are in clearance fit, so that the orthographic projection of the base 11 along its movement direction falls completely into the groove of the extension groove 41.

[0191] The orthographic projection of the base 11 in its direction of movement (i.e., the longitudinal direction of the relay 100) falls completely into the cavity of the extension groove 41. This means that the base 11 can completely enter the cavity of the extension groove 41, thereby avoiding interference between the base 11 and the side wall of the extension groove 41, which would prevent only part of the base 11 from entering the cavity and thus fail to fully utilize the depth of the cavity.

[0192] More specifically, based on the above embodiments, in an optional embodiment, the extension groove 41 is a rectangular groove, and the base 11 and the sidewall of the extension groove 41 are in clearance fit. Therefore, when the base 11 enters or exits the cavity of the extension groove 41, it can avoid contact and interference with its sidewall.

[0193] Please continue reading. Figure 6 and Figure 7 In one embodiment, the auxiliary contact mechanism 50 includes an auxiliary movable spring 52, which is mounted on the base 11. The push rod assembly 14 can drive the base 11 to move the auxiliary movable spring 52 in a longitudinal reciprocating motion without interference within the extension groove 41 and / or the contact cavity 211. Thus, when the base 11 moves the auxiliary movable spring 52 in a longitudinal reciprocating motion, the auxiliary movable spring 52 can contact or separate from the auxiliary contact 511, avoiding the auxiliary movable spring 52 from being unable to work properly due to the resistance and interference of the sidewall of the extension groove 41 and / or the sidewall of the contact cavity 211.

[0194] Please continue reading. Figure 14 In one embodiment, the auxiliary movable spring 52 includes a first contact portion 525 and a second contact portion 526 extending from opposite sides of the base 11. The sidewall of the extension groove 41 is provided with a first clearance recess 411 and a second clearance recess 412, with the first clearance recess 411 corresponding to the first contact portion 525 and the second clearance recess 412 corresponding to the second contact portion 526. Therefore, the recessed structure of the first clearance recess 411 and the second clearance recess 412 can make the space size of the first receiving cavity and the second receiving cavity larger, thereby better accommodating the first contact portion 525 and the second contact portion 526, ensuring that the size design of the first contact portion 525 and the second contact portion 526 is not limited by the size of the first receiving cavity and the second receiving cavity, and reducing the design and selection difficulty of the auxiliary movable spring 52.

[0195] In one embodiment, the yoke plate 40 includes an annular plate portion 42 and an extension portion. The annular plate portion 42 is a plate-shaped member with a through opening in the middle, and the extension portion is a concave member with an extension groove 41. The extension portion is connected to the annular plate portion 42 in such a way that the extension groove 41 corresponds to and communicates with the through opening. Therefore, after the extension portion is connected to the annular plate portion 42, the cavity of the concave extension portion can be formed into the extension groove 41, which simplifies the forming method of the extension groove 41. Furthermore, at this time, the extension groove 41 can automatically communicate with the contact cavity 211 through the through opening of the annular plate portion 42, so as to provide the base 11 with more ample longitudinal movement space.

[0196] Optionally, the annular plate portion 42 and the extension portion are integrally formed; or, the annular plate portion 42 is sealed and welded to the extension portion. This ensures the connection strength and sealing reliability between the annular plate portion 42 and the extension portion.

[0197] Please continue reading. Figure 6 and Figure 12 For example, in one embodiment, the extension portion includes a carrier plate portion 43 and a surrounding plate portion 44. The carrier plate portion 43 and the annular plate portion 42 are spaced apart. The surrounding plate portion 44 is connected between the carrier plate portion 43 and the annular plate portion 42, and the annular plate portion 42 surrounds the outer periphery of the surrounding plate portion 44. The carrier plate portion 43 and the surrounding plate portion 44 cooperate to form an extension groove 41.

[0198] For example, the surrounding plate part 44 is a rectangular ring plate. After being installed on the carrier plate part 43, it can cooperate with the carrier plate part 43 to form an extension groove 41, which makes the forming method and structure of the extension groove 41 simple.

[0199] That is, it can be understood that one side opening of the enclosure plate portion 44 is covered by the carrier plate portion 43, while the other side opening forms the slot of the extension groove 41, which is used for the base 11 to enter and exit the cavity of the extension groove 41.

[0200] Please continue reading. Figure 7 and Figure 12 In one embodiment, the carrier plate portion 43 has a mounting through hole 431, and the push rod assembly 14 includes a push rod 141 connected to the base 11. The push rod 141 is movably inserted into the mounting through hole 431. The mounting through hole 431 provided in the carrier plate portion 43 allows the push rod 141 to be inserted and installed, thus realizing the assembly and connection of the push rod 141 and the yoke plate 40. When the push rod 141 slides back and forth, it can be guided and limited by the hole wall of the mounting through hole 431, thereby improving the movement stability of the base 11 in the stroke space and improving the contact reliability between the moving contact assembly 12 and the main contact 60, and between the auxiliary moving spring 52 and the auxiliary contact 511.

[0201] Optionally, the carrier plate portion 43 and the surrounding plate portion 44, and / or the surrounding plate portion 44 and the annular plate portion 42, are integral structures. Therefore, the connection method of the carrier plate portion 43, the surrounding plate portion 44, and the annular plate portion 42 can be selected according to the specific product design scheme and performance requirements, and the integral structure can ensure the connection strength and overall structural performance between the carrier plate portion 43 and the surrounding plate portion 44, and / or between the surrounding plate portion 44 and the annular plate portion 42.

[0202] For example, in this application, the carrier plate portion 43, the surrounding plate portion 44, and the annular plate portion 42 are designed as an integrated structure to enable the yoke plate 40 to obtain better overall structural performance, while reducing the number of parts, reducing processing difficulty and cost.

[0203] Please continue reading. Figure 2 , Figure 3 , Figure 5 , Figure 6and Figure 9 It should be noted that, in one embodiment of this application, the relay 100 further includes two pairs of main contacts 60, one pair of main contacts 60 being mounted on one of the ceramic covers 21 and correspondingly configured with one of the moving contact components 12 so as to be able to contact or separate; the other pair of main contacts 60 being mounted on another ceramic cover 21 and correspondingly configured with another moving contact component 12 so as to be able to contact or separate.

[0204] Please continue reading. Figure 1 and Figure 2 In addition, based on any of the above embodiments, the relay 100 also includes a housing 70 and an adapter 80. The main contact 60 is built into the housing 70, one end of the adapter 80 is connected to the main contact 60, and the other end of the adapter 80 extends to the outside of the housing 70 for soldering to an external load circuit.

[0205] In the relay 100 of this application, the main contact 60 is completely installed in the mounting cavity formed inside the housing 70, and the main contact 60 is assembled with the ceramic cover 21 provided inside the housing 70. In order to realize the welding of the main contact 60 to the external load circuit, this solution adopts to open a first protrusion hole 71 on the housing 70, and at the same time add an adapter 80 and connect one end of the adapter 80 to the main contact 60, while extending the other end of the adapter 80 to the outside of the housing 70 through the first protrusion hole 71. In this way, the part of the adapter 80 extending to the outside of the housing 70 can meet the need to form a direct connection with the external load circuit (such as PCB board, etc.), thereby realizing the connection of the main contact 60 to the external load circuit through the adapter 80.

[0206] Therefore, compared with traditional technology, the adapter 80 meets the need for the main contacts 60 of the relay 100 to be directly welded and assembled with the external load circuit through the adapter 80, while eliminating the need for traditional copper busbars, simplifying the installation process, and helping to improve the production and assembly efficiency of the relay 100.

[0207] Please continue reading. Figure 1 and Figure 2 More specifically, based on the above embodiments, the housing 70 has an internal mounting cavity, and the housing 70 also has a first extension hole 71, which communicates with the mounting cavity; the main contact 60 is built into the mounting cavity, and the other end of the adapter 80 extends to the outside of the housing 70 through the first extension hole 71.

[0208] Therefore, the mounting cavity inside the housing 70 can be used to accommodate the main contact 60. Since the first protrusion hole 71 is connected to the mounting cavity, the other end of the adapter 80 can be inserted through the first protrusion hole 71 and protrude to the outside of the housing 70, reducing the difficulty of installing the adapter 80.

[0209] It is worth noting that other components of the relay 100, such as the ceramic cover 21, the base 11, and the push rod assembly 14, are also arranged inside the mounting cavity of the housing 70, so that the housing 70 can provide protection and concealed installation for these components, making the appearance of the relay 100 more concise.

[0210] Please continue reading. Figure 1 and Figure 2 In one optional embodiment, the adapter 80 includes a first adapter piece 81 and a second adapter piece 82, which are connected at an angle. Depending on actual needs, the first adapter piece 81 and the second adapter piece 82 can be an integral structure or detachably assembled. For example, in this application, the first adapter piece 81 and the second adapter piece 82 are used as an integral structure to give the adapter 80 better overall structural performance and facilitate processing and molding.

[0211] For example, the adapter 80 can be a flat metal sheet, and the material can be, but is not limited to, copper; then, by bending, the first adapter piece 81 and the second adapter piece 82 connected at an angle can be obtained.

[0212] The first adapter piece 81 is welded to the main contact 60, and the second adapter piece 82 passes through the first protrusion hole 71 and at least partially protrudes from the outside of the housing 70. Therefore, during installation, the first adapter piece 81 can be dedicated to connecting with the main contact 60 to achieve an electrical connection between the adapter 80 and the main contact 60. The second adapter piece 82, bent towards the first protrusion hole 71, can easily pass into the first protrusion hole 71 and then protrude from the first protrusion hole 71 to the outside of the housing 70 for electrical connection with an external load circuit. It is evident that the structure and function of the first adapter piece 81 and the second adapter piece 82 are clearly defined, which helps improve the reliability and connection effect of the adapter 80.

[0213] For example, in one embodiment, the first adapter piece 81 is welded to the main contact 60. The welding method not only ensures the connection strength between the first adapter piece 81 and the main contact 60, but also ensures the connection quality and the stability of current transmission.

[0214] More specifically, the first adapter piece 81 is fixed to the main contact 60 by laser welding. Laser welding has good processing efficiency and welding quality.

[0215] In one embodiment, the portion of the second adapter piece 82 extending outside the housing 70 can be soldered to the external PCB board via through-hole soldering. Thus, by first inserting the portion of the second adapter piece 82 extending outside the housing 70 into the solder holes of the external PCB board, pre-positioning of the assembly can be achieved. Soldering is then performed on this basis, minimizing the risk of positional shift in the second adapter piece 82 and ensuring connection accuracy and soldering quality.

[0216] It should be noted that through-hole soldering specifically refers to a process in which component leads are inserted into through-holes in a PCB and then soldered. Understandably, component leads refer to the portion of the second adapter plate 82 that extends outside the housing 70, and PCB through-holes refer to solder holes on the external PCB board.

[0217] Please continue reading. Figure 1 and Figure 2 Optionally, in one embodiment, the housing 70 has a cover 72. Furthermore, the housing 70 also has a housing with an access opening, and the cover 72 is mounted at the access opening to mate with the housing and form a mounting cavity. The access opening is designed to facilitate the installation or removal of the relay 100 body into the mounting cavity.

[0218] The first protruding hole 71 is formed in the cover 72, and the portion of the second adapter piece 82 extending outside the outer casing 70 is perpendicular to the cover 72. Therefore, during installation, the main contact 60 can be first installed into the mounting cavity along with the relay 100 body, then the adapter piece 80 can be connected to the main contact 60, and finally the cover 72 can be installed at the inlet / outlet opening. During installation, the first protruding hole 71 and the first adapter piece 81 are aligned, allowing the first adapter piece 81 to automatically insert into the first protruding hole 71 and at least partially extend outside the outer casing 70. This installation method is simple and efficient, improving production efficiency and subsequent maintenance efficiency.

[0219] Please continue reading. Figure 1 and Figure 2 In an optional embodiment, the cover 72 has a first connection area 721, which is rectangular in shape. Four main contacts 60 are arranged in a rectangular shape, and the four main contacts 60 are arranged corresponding to the first connection area 721.

[0220] Four adapter pieces 80 are provided and are assembled one-to-one with the main contacts 60. Four first protrusion holes 71 are provided, and the four first protrusion holes 71 are respectively arranged at the four apex corners of the first connection area 721. The second adapter pieces 82 of the four adapter pieces 80 pass through the first protrusion holes 71 one-to-one.

[0221] Therefore, the four second adapter pieces 82 that extend to the outside of the housing 72 can be connected to the external load circuit at the same time, thereby improving the reliability of the welding between the relay 100 and the external load circuit.

[0222] Of course, it should be noted that the actual number of main contacts 60 and adapters 80 can be flexibly selected according to actual needs, and the specific embodiments of the four main contacts 60 and adapters 80 described above should not be regarded as a limitation on the scope of protection of this application.

[0223] Please continue reading. Figure 1 and Figure 2In one embodiment, all four adapters 80 are high-voltage connectors, the relay 100 also includes a low-voltage connector 90, and the housing 72 also has a second connection area 722 connected to the first connection area 721. The second connection area 722 has a second protrusion hole 73. A portion of the low-voltage connector 90 is installed in the mounting cavity, and the remaining portion of the low-voltage connector 90 passes through the second protrusion hole 73 and extends to the outside of the housing 70. The high-voltage connector and the low-voltage connector 90 can be soldered together to the external PCB board by through-hole soldering.

[0224] On the one hand, the high-voltage connector and low-voltage connector 90 adopt through-hole welding, which can be conveniently and effectively assembled and fixed together with the external PCB board, reducing the difficulty of processing and improving the connection strength and reliability. On the other hand, the part of the low-voltage connector 90 that extends into the outer shell 70 through the second protrusion hole 73 can be welded together with the second adapter piece 82 of the adapter 80 to the external PCB board, ensuring that the high voltage and low voltage of the relay 100 are connected normally to the external PCB board, and ensuring that the relay 100 can effectively control the external PCB board.

[0225] For example, the low-pressure connector 90 has a connector body and four metal connecting pieces. The connector body is built into the mounting cavity, and the four metal connecting pieces are arranged side by side at intervals and extend at least partially through the second extension hole 73 to the outside of the housing 70.

[0226] It should be noted that the main differences between the high-voltage connector and the low-voltage connector 90 in this application lie in their operating voltage and structural design. For example, high-voltage connectors are typically used for external load circuits with voltages ranging from several hundred volts to several thousand volts (such as the 400V / 800V system of new energy vehicles), while low-voltage connector 90 is generally used for external load circuits with voltages below several hundred volts (such as the 12V / 24V system of traditional fuel vehicles). Furthermore, high-voltage connectors require special insulating materials (such as high-temperature resistant ceramics) and sealing designs to prevent arcing and leakage. Low-voltage connector 90, on the other hand, has a relatively simple structure and lower insulation requirements. Specifically, in this application, the connector connected to the main contact 60 is defined as the high-voltage connector, while the connector used for electrical connection to the coil, auxiliary contact 511, etc., is defined as the low-voltage connector 90.

[0227] Optionally, the low-voltage connector 90 and the high-voltage connector are arranged on the same side of the housing 70. Since the low-voltage connector 90 and the high-voltage connector are arranged on the same side, it is convenient to directly connect to the external load circuit. During installation, there is no need to reverse the spatial orientation of the relay 100, which improves the convenience and efficiency of installation.

[0228] More specifically, the aforementioned same side is the side of the housing 70 that faces the main contact 60. That is to say, both the high-voltage connector and the low-voltage connector 90 are installed through the housing cover 72, so the housing cover 72 is directly opposite the main contact 60, which helps to simplify the structure of the adapter 80 and the low-voltage connector 90, while reducing their size.

[0229] Please continue reading. Figure 1 Furthermore, in another embodiment, the cover 72 also has an insulating partition 74, which connects the first connection area 721 and the second connection area 722 and protrudes outward from the outer casing 70. The high-voltage connector and the low-voltage connector 90 are respectively arranged on opposite sides of the insulating partition 74. The use of the insulating partition 74 to separate the low-voltage connector 90 and the high-voltage connector significantly increases the creepage distance between them, thereby improving the stability and safety of electrical performance.

[0230] Preferably, at least two insulating partitions 74 are provided, and the at least two insulating partitions 74 are arranged side by side and spaced apart between the high-voltage connector and the low-voltage connector 90. This can further increase the creepage distance between the low-voltage connector 90 and the high-voltage connector, and improve the protection effect.

[0231] For example, the insulating partition 74 can be made of materials such as plastic or resin.

[0232] In this application, each moving contact assembly 12 includes a moving contact piece, the opposite ends of which are used to contact a pair of corresponding main contacts 60 to achieve electrical connection. More specifically, two main contacts 60 (i.e., a pair of main contacts 60) are respectively mounted on each of the two ceramic covers 21, and the two main contacts 60 are evenly spaced on the top surface of the corresponding ceramic cover 21 away from the frame 30. Accordingly, the moving contact piece has two contact ends. After the base 11 drives the moving contact assembly 12 to move closer to the main contacts 60, the two contact ends of the moving contact piece simultaneously contact the two main contacts 60 to improve connection reliability.

[0233] 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.

[0234] 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 (100), characterized in that, include: The driving mechanism (10) includes a base (11) and two moving contact components (12). The two moving contact components (12) are respectively disposed on the base (11), and each moving contact component (12) can be connected to an external load circuit. The cover mechanism (20) includes two ceramic covers (21), which are respectively covered on the two moving contact components (12). The driving mechanism (10) can drive the base (11) and drive the two moving contact components (12) to move synchronously along a preset path, so as to realize the on / off control of the two external load circuits by the two moving contact components (12).

2. The relay (100) according to claim 1, characterized in that, The relay (100) further includes a frame plate (30) and a yoke plate (40). The frame plate (30) is mounted on the yoke plate (40) and is located above the yoke plate (40) and between the ceramic cover (21) and the yoke plate (40). The frame plate (30) has two mounting holes (31) arranged in a through structure. The mounting holes (31) correspond one-to-one with the ceramic cover (21). Each ceramic cover (21) is sealed and connected to the frame plate (30) in a manner corresponding to the mounting holes (31). Each ceramic cover (21) is formed by surrounding the frame plate (30) and the yoke plate (40) to form a pressure-resistant cavity.

3. The relay (100) according to claim 2, characterized in that, Each of the ceramic covers (21) has a contact cavity (211) inside, which is connected to the mounting hole (31) to form the pressure-resistant cavity. The two pressure-resistant cavities are connected in the area between the frame plate (30) and the yoke plate (40).

4. The relay (100) according to claim 2, characterized in that, The base (11) is located between the frame (30) and the yoke plate (40). The movable contact component (12) extends into the ceramic cover (21) through the mounting hole (31), and the movable contact component (12) can reciprocate longitudinally in the contact cavity (211) of the ceramic cover (21) under the drive of the base (11).

5. The relay (100) according to claim 2, characterized in that, The mounting hole (31) has a hole wall that protrudes away from the yoke plate (40) to form an annular mounting portion (31a). The ceramic cover (21) is welded to the annular mounting portion (31a). The annular mounting portion (31a) can deform to absorb the welding stress of the ceramic cover (21).

6. The relay (100) according to claim 2, characterized in that, The two mounting holes (31) are symmetrically arranged on the frame piece (30).

7. The relay (100) according to claim 2, characterized in that, The relay (100) also includes an auxiliary contact mechanism (50), which includes an auxiliary contact assembly (51) and an auxiliary moving spring (52). The auxiliary contact assembly (51) is mounted on the frame (30), and the auxiliary moving spring (52) is mounted on the base (11). Under the drive of the base (11), the auxiliary moving spring (52) can contact or separate from the auxiliary contact assembly (51).

8. The relay (100) according to claim 7, characterized in that, The frame piece (30) is provided with an outwardly extending first mounting portion (35a), and the auxiliary contact assembly (51) is mounted on the first mounting portion (35a).

9. The relay (100) according to claim 8, characterized in that, The first mounting part (35a) is a mounting arm that protrudes from the frame piece (30), and the mounting arm has a connection hole (32). The auxiliary contact assembly (51) is mounted in the connection hole (32).

10. The relay (100) according to claim 9, characterized in that, The auxiliary contact assembly (51) includes an auxiliary contact (511) and an insulator (512), wherein the auxiliary contact (511) is hermetically inserted into the insulator (512), and the insulator (512) is hermetically welded to the connection hole (32).

11. The relay (100) according to claim 10, characterized in that, The hole wall of the connecting hole (32) extends away from the yoke plate (40) to form an annular protrusion (321). The insulator (512) is welded to the upper end face of the annular protrusion (321), and the annular protrusion (321) can deform to absorb the welding stress of the insulator (512) and the annular protrusion (321).

12. The relay (100) according to claim 9, characterized in that, The frame piece (30) includes a main body (33) and an annular mating part (34). The annular mating part (34) surrounds the outer periphery of the main body (33), and the main body (33) is provided with the first mounting part (35a) protruding outward.

13. The relay (100) according to claim 9, characterized in that, The frame piece (30) includes a main body (33) and an annular mating part (34). The annular mating part (34) surrounds the outer periphery of the main body (33). The main body (33) has the mounting hole (31). The first mounting part (35a) is a partition (35). The frame piece (30) has a through hole (30a) that runs vertically through the frame. The partition (35) divides the through hole (30a) into two mounting holes (31). The connecting hole (32) is provided on the partition (35). The wall of the mounting hole (31) protrudes in a direction away from the yoke plate (40) to form an annular mounting portion (31a).

14. The relay (100) according to claim 13, characterized in that, The partition (35) has a recessed relief groove (351) on the surface facing the yoke plate (40) in a direction away from the yoke plate (40), and the relief groove (351) is used to increase the movement space of the base (11).

15. The relay (100) according to claim 11, characterized in that, The auxiliary contact mechanism (50) further includes an auxiliary component (53), which has an embedded portion (531) disposed inside the base (11). The auxiliary moving spring (52) includes a second mounting portion (521) and a contact portion (522) connected to each other. The second mounting portion (521) is embedded inside the base (11), and the contact portion (522) extends outside the base (11) for contacting or separating from the auxiliary contact (511).

16. The relay (100) according to claim 15, characterized in that, The base (11), the auxiliary component (53), and the auxiliary moving spring (52) are integrally formed; The embedded part (531) and the second mounting part (521) are in direct contact and stacked inside the base (11), and the embedded part (531) is arranged along the direction of the second mounting part (521).

17. The relay (100) according to claim 16, characterized in that, The auxiliary component (53) is made of metal, and the strength of the auxiliary component (53) is greater than the strength of the auxiliary moving spring (52).

18. The relay (100) according to claim 15, characterized in that, Two contact portions (522) are provided and are respectively connected to the opposite sides of the second mounting portion (521). The second mounting portion (521) is integrally formed with the base (11), and the two contact portions (522) extend to the outside of the opposite sides of the base (11).

19. The relay (100) according to claim 15, characterized in that, The auxiliary component (53) also has a functional part (532) connected to the embedded part (531), the functional part (532) extending to the outside of the base (11) and overlapping with the contact part (522).

20. The relay (100) according to claim 19, characterized in that, The functional part (532) is stacked on top of the contact part (522); or, the functional part (532) is stacked on the bottom of the contact part (522).

21. The relay (100) according to claim 19, characterized in that, The end face of the functional part (532) away from the base (11) and facing the contact part (522) is provided with a rounded corner transition or a curved surface transition (5321).

22. The relay (100) according to claim 15, characterized in that, The contact portion (522) includes a contact piece (5221) and a bent piece (5222) connected to each other. The contact piece (5221) is disposed further away from the base (11) than the bent piece (5222). The side of the bent piece (5222) away from the contact piece (5221) is connected to the second mounting portion (521).

23. The relay (100) according to claim 22, characterized in that, The bent piece (5222) is configured to form an arched protrusion with a uniform transition between the second mounting portion (521) and the contact piece (5221).

24. The relay (100) according to claim 22, characterized in that, The contact portion (522) further includes an auxiliary contact piece (5223), which is used to be mounted on the surface of the contact piece (5221) facing the auxiliary contact (511), and the auxiliary contact piece (5223) is used to contact or separate from the auxiliary contact (511); Wherein, the thickness of the auxiliary contact (5223) is greater than the thickness of the contact (5221); and / or, the structural strength of the auxiliary contact (5223) is greater than the structural strength of the contact (5221).

25. The relay (100) according to claim 7, characterized in that, The drive mechanism (10) further includes a mounting member (13), which is mounted on the base (11) and has a loading portion (131) extending out of the base (11). The auxiliary moving spring (52) is riveted to the loading portion (131).

26. The relay (100) according to claim 25, characterized in that, The mounting component (13) is configured as a riveting component, and the loading part (131) is provided with a rivet (132). The auxiliary moving spring (52) is provided with a riveting hole (5231). The rivet (132) passes through the riveting hole (5231) to be riveted and fixed with the auxiliary moving spring (52). And / or, the mounting part (13) is configured as a riveting part, the loading part (131) is provided with a riveting hole (5231), the auxiliary moving spring (52) is provided with a rivet (132), and the rivet (132) passes through the riveting hole (5231) to be riveted and fixed with the loading part (131).

27. The relay (100) according to claim 25, characterized in that, The auxiliary moving spring (52) and the loading part (131) are provided with two riveting positions, which are symmetrically arranged on both sides of the loading part (131); And / or, the mounting component (13) is made of metal, the base (11) is made of plastic, and the mounting component (13) and the base (11) are integrally formed; And / or, the auxiliary moving spring (52) and the mounting member (13) are both made of metal, the thickness of the mounting member (13) is greater than the thickness of the auxiliary moving spring (52), or the structural stiffness of the mounting member (13) is greater than the structural stiffness of the auxiliary moving spring (52).

28. The relay (100) according to claim 25, characterized in that, The auxiliary moving spring (52) includes a connecting part (523) and a contact part (522). The connecting part (523) is connected to the contact part (522) and the connecting part (523) is connected to the loading part (131). The contact part (522) is used to contact or separate from the auxiliary contact (511).

29. The relay (100) according to claim 28, characterized in that, The loading part (131) is stacked on top of the connecting part (523); The loading part (131) has a curved transition structure on the end face away from the base (11) and facing the connecting part (523).

30. The relay (100) according to claim 28, characterized in that, The loading part (131), the connecting part (523), and the contact part (522) are each provided in pairs and are assembled one-to-one. One set of the loading part (131), the connecting part (523), and the contact part (522) protrudes and is provided on one side of the base (11), and the other set of the loading part (131), the connecting part (523), and the contact part (522) protrudes and is provided on the other side of the base (11). The auxiliary moving spring (52) also includes a connecting part (524), which is connected between the two connecting parts (523) and attached to the base (11), and the connecting part (524) has an assembly through hole (5241). The drive mechanism (10) further includes a push rod (141), which passes through the mounting through hole (5241), and one end of the push rod (141) is mounted on the base (11), while the other end of the push rod (141) extends toward the outside of the base (11).

31. The relay (100) according to claim 1, characterized in that, Two of the moving contact components (12) are symmetrically arranged on the base (11).

32. The relay (100) according to claim 7, characterized in that, The drive mechanism (10) further includes a push rod assembly (14), which is connected to the base (11) in a transmission manner. A contact cavity (211) is formed inside the ceramic cover (21), and an extension groove (41) is formed in the yoke plate (40). The extension groove (41) communicates with the contact cavity (211), and the extension groove (41) is configured to expand the longitudinal space dimension of the contact cavity (211). The base (11) can be supported on the bottom wall of the extension groove (41), and the push rod assembly (14) can drive the base (11) to reciprocate longitudinally within the contact cavity (211) and the extension groove (41).

33. The relay (100) according to claim 32, characterized in that, The base (11) and the sidewall of the extension groove (41) are in clearance fit, so that the orthographic projection of the base (11) along its direction of movement falls completely into the cavity of the extension groove (41).

34. The relay (100) according to claim 32, characterized in that, The auxiliary contact mechanism (50) includes an auxiliary moving spring (52), which is mounted on the base (11). The push rod assembly (14) can drive the base (11) to drive the auxiliary moving spring (52) to move longitudinally reciprocally without interference within the extension groove (41) and / or the contact cavity (211).

35. The relay (100) according to claim 34, characterized in that, The auxiliary moving spring (52) includes a first contact portion (525) and a second contact portion (526) extending from opposite sides of the base (11). The sidewall of the extension groove (41) is provided with a first clearance recess (411) and a second clearance recess (412), and the first clearance recess (411) is correspondingly provided with the first contact portion (525), and the second clearance recess (412) is correspondingly provided with the second contact portion (526).

36. The relay (100) according to claim 34, characterized in that, The yoke plate (40) includes an annular plate portion (42) and an extension portion. The annular plate portion (42) is a plate-shaped member with a through opening in the middle. The extension portion is a concave member with the extension groove (41). The extension portion is connected to the annular plate portion (42) in such a way that the extension groove (41) corresponds to and communicates with the through opening.

37. The relay (100) according to claim 36, characterized in that, The annular plate portion (42) and the extension portion are integral structures; or, the annular plate portion (42) is sealed and welded to the extension portion.

38. The relay (100) according to claim 36, characterized in that, The extension portion includes a carrier plate portion (43) and a surrounding plate portion (44). The carrier plate portion (43) and the annular plate portion (42) are spaced apart. The surrounding plate portion (44) is connected between the carrier plate portion (43) and the annular plate portion (42), and the annular plate portion (42) surrounds the outer periphery of the surrounding plate portion (44). The carrier plate portion (43) and the surrounding plate portion (44) cooperate to form the extension groove (41).

39. The relay (100) according to claim 38, characterized in that, The carrier plate portion (43) has an installation through hole (431), and the push rod assembly (14) includes a push rod (141) connected to the base (11), and the push rod (141) is movably inserted into the installation through hole (431).

40. The relay (100) according to claim 38, characterized in that, The carrier plate portion (43) and the surrounding plate portion (44) and / or the surrounding plate portion (44) and the annular plate portion (42) are an integral structure.

41. The relay (100) according to claim 1, characterized in that, The relay (100) further includes two pairs of main contacts (60), one pair of main contacts (60) being mounted on one of the ceramic covers (21) and correspondingly configured with one of the moving contact components (12) to be able to contact or separate; the other pair of main contacts (60) being mounted on the other ceramic cover (21) and correspondingly configured with the other moving contact component (12) to be able to contact or separate.

42. The relay (100) according to claim 41, characterized in that, The relay (100) also includes a housing (70) and an adapter (80), the main contact (60) is built into the housing (70), one end of the adapter (80) is connected to the main contact (60), and the other end of the adapter (80) extends to the outside of the housing (70) for soldering to an external load circuit.

43. The relay (100) according to claim 42, characterized in that, The housing (70) has an internal mounting cavity, and the housing (70) also has a first protrusion hole (71) that communicates with the mounting cavity; The main contact (60) is built into the mounting cavity, and the other end of the adapter (80) extends to the outside of the housing (70) via the first protrusion hole (71).

44. The relay (100) according to claim 43, characterized in that, The adapter (80) includes a first adapter piece (81) and a second adapter piece (82). The first adapter piece (81) and the second adapter piece (82) are connected at an angle. The first adapter piece (81) is welded to the main contact (60). The second adapter piece (82) passes through the first protrusion hole (71) and at least partially protrudes from the outside of the housing (70).

45. The relay (100) according to claim 44, characterized in that, The portion of the second adapter piece (82) extending outside the outer casing (70) can be soldered to the outer PCB board via through-hole soldering.

46. ​​The relay (100) according to claim 44, characterized in that, The outer casing (70) has a cover (72), the first protruding hole (71) is formed on the cover (72), and the portion of the second adapter piece (82) extending out of the outer casing (70) is perpendicular to the cover (72).

47. The relay (100) according to claim 46, characterized in that, The shell cover (72) has a first connection area (721), which is rectangular in shape. The main contacts (60) are arranged in a rectangular shape, and the four main contacts (60) are arranged corresponding to the first connection area (721). The adapter (80) is provided with four parts and is assembled one-to-one with the main contact (60). The first protrusion hole (71) is provided with four parts. The four first protrusion holes (71) are respectively arranged at the four apex corners of the first connection area (721). The second adapter pieces (82) of the four adapters (80) pass through the first protrusion holes (71) one-to-one.

48. The relay (100) according to claim 47, characterized in that, All four adapters (80) are high-voltage connectors. The relay (100) also includes a low-voltage connector (90). The housing (72) also has a second connection area (722) connected to the first connection area (721). The second connection area (722) has a second protrusion hole (73). A portion of the low-voltage connector (90) is installed in the mounting cavity. The remaining portion of the low-voltage connector (90) passes through the second protrusion hole (73) and extends to the outside of the housing (70). The high-voltage connector and the low-voltage connector (90) can be soldered together to the external PCB board by through-hole soldering.

49. The relay (100) according to claim 48, characterized in that, The low-pressure connector (90) and the high-pressure connector are located on the same side of the housing (70).

50. The relay (100) according to claim 49, characterized in that, The same side is one side of the housing (70) facing the main contact (60).

51. The relay (100) according to claim 48, characterized in that, The cover (72) also has an insulating partition (74), which is connected between the first connection area (721) and the second connection area (722) and protrudes outward from the outer shell (70). The high-voltage connector and the low-voltage connector (90) are respectively arranged on opposite sides of the insulating partition (74).

52. The relay (100) according to claim 41, characterized in that, Each of the moving contact components (12) includes a moving contact piece, the opposite ends of which are used to contact a pair of corresponding main contacts (60) to achieve electrical connection.

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