Relay

Abstract

To provide a relay that includes a pair of fixed contact lead-out ends, a movable contact point assembly, a push rod assembly, and a rotation prevention structure.SOLUTION: The movable contact point assembly includes a movable contact point. Both ends of the movable contact point are contacted or separated from a pair of fixed contact lead-out ends. The movable contact point assembly has a first side face and a second side face. The push rod assembly includes a contact point bracket. The contact point bracket has a first side wall and a second side wall. The first side wall corresponds to the first side face, and the second side wall corresponds to the second side face. The rotation prevention structure includes a first rotation prevention member and a second rotation prevention member. The first rotation prevention member is disposed between the first side wall and the first side face. The second rotation prevention member is disposed between the second side wall and the second side face.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present application relates to the technical field of electronic control devices, and in particular to relays. [Background technology]

[0002] A relay is an electronic control device, which has a control system (also called input circuit) and a controlled system (also called output circuit), and is usually applied in automatic control circuits. A relay is actually an "automatic switch" that controls a large current with a small current. Therefore, in the circuit, it plays the role of automatic adjustment, safety protection, conversion circuit, etc.

[0003] A high voltage DC relay is a type of relay, and a high voltage DC relay in the prior art includes a pair of fixed contact leads, a movable assembly, a coil unit, and a magnetic circuit unit. The movable assembly includes a movable contactor assembly, a push rod assembly, and an elastic assembly, and the movable contactor assembly is attached to the push rod assembly via the elastic assembly. The magnetic circuit unit includes a fixed iron core and a movable iron core, and the fixed iron core is fixedly provided in the relay, and the movable iron core is connected to the push rod assembly. When the coil unit is energized, the fixed iron core generates a magnetic attraction force and attracts and moves the movable iron core, thereby moving the push rod assembly together with the movable contactor assembly, thereby realizing the closing of the contacts.

[0004] However, during the operation of the relay, the movable contact assembly is easy to rotate around the axis of the push rod relative to the push rod, so the contact friction between the movable contact assembly and the contact bracket of the push rod assembly will generate larger metallic noise. In addition, with the friction loss between the movable contact assembly and the contact bracket, the deflection angle of the movable contact assembly will become larger and larger, which will further affect the contact position between the movable contact assembly and the fixed contact lead end, making the contact resistance unstable. In addition, the friction between the movable contact assembly and the contact bracket is easy to generate metal particles, which will fall onto the contact surface of the contact, increasing the contact resistance, and even making the relay unable to conduct. Summary of the Invention

[0005] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present embodiments provide a relay that overcomes the problem of movable contact assemblies existing in the prior art being prone to rotation.

[0006] The relay according to the embodiment of the present application is A pair of fixed contact lead ends; a movable contact assembly including a movable contact; a push rod assembly including a contact bracket; an anti-rotation structure including a first anti-rotation member and a second anti-rotation member; Both ends of the movable contact along a first direction are in contact with or separated from the pair of fixed contact pull-out ends, the first direction is a direction in which the pair of fixed contact pull-out ends are arranged, the movable contact assembly has a first side surface and a second side surface opposed to each other along a third direction, a moving direction of the movable contact is defined as a second direction, and the first direction, the second direction, and the third direction are perpendicular to each other, the contact bracket has a first side wall and a second side wall provided opposite to each other along the third direction, the first side wall corresponding to the first side surface, and the second side wall corresponding to the second side surface; The first anti-rotation member is provided between the first sidewall and the first side surface, and the second anti-rotation member is provided between the second sidewall and the second side surface.

[0007] According to some embodiments of the present application, the first anti-rotation member and the second anti-rotation member are both sheet structures made of a flexible material; The first side wall has a first inner surface facing the movable contact assembly, and the first anti-rotation member is attached to the first inner surface or the first side, and the second side wall has a second inner surface facing the movable contact assembly, and the second anti-rotation member is attached to the second inner surface or the second side.

[0008] According to some embodiments of the present application, the first anti-rotation member and the second anti-rotation member are both elastic sheets, the first anti-rotation member is pressed between the first side wall and the first side of the movable contact assembly to provide a first elastic force to the movable contact assembly, and the second anti-rotation member is pressed between the second side wall and the second side of the movable contact assembly to provide a second elastic force to the movable contact assembly; The directions of the first elastic force and the second elastic force are opposite to each other.

[0009] According to some embodiments of the present application, each of the first anti-rotation member and the second anti-rotation member includes a connection portion and an elastic sheet portion, The two connection portions are respectively connected to the first side wall and the second side wall, the two elastic sheet portions extend from the two connection portions in a direction away from the fixed contact pull-out end, and the two elastic sheet portions respectively provide the first elastic force and the second elastic force to the movable contact assembly.

[0010] According to some embodiments of the present application, the connection portion of the first anti-rotation member is crimped to a first inner surface of the first side wall facing the movable contact assembly, and the connection portion of the second anti-rotation member is crimped to a second inner surface of the second side wall facing the movable contact assembly.

[0011] According to some embodiments of the present application, the first side wall is provided with a first opening, and the second side wall is provided with a second opening; Each of the connection portions includes a hook, and the hooks of the two connection portions are hooked onto a lower edge of the first opening and a lower edge of the second opening, respectively.

[0012] According to some embodiments of the present application, the first side wall is provided with a first opening, and the second side wall is provided with a second opening; Each of the connection portions includes an engagement structure, and the engagement structures of the two connection portions are engaged in the first opening and the second opening, respectively.

[0013] According to some embodiments of the present application, the first side wall is further provided with a first connection hole, and the second side wall is further provided with a second connection hole; Each of the connection portions further includes a protrusion, and the protrusions of the two connection portions extend into the first connection hole and the second connection hole, respectively, and are press-fitted into the first connection hole and the second connection hole, respectively.

[0014] According to some embodiments of the present application, the first side wall and the second side wall are both provided with protruding claws, Each of the connection portions includes a collar, and the collars of the two connection portions are fitted onto the outer periphery of the convex claw of the first side wall and the outer periphery of the convex claw of the second side wall, respectively.

[0015] According to some embodiments of the present application, the anti-rotation structure further includes a transition piece, One end of the first anti-rotation member and one end of the second anti-rotation member are integrally connected to both ends of the transition piece along the third direction, respectively.

[0016] According to some embodiments of the present application, the transition piece has a central bore; The relay further includes a resilient assembly, the resilient assembly being connected to the movable contact assembly and the push rod assembly, the resilient assembly providing a contact pressure to the movable contact assembly; The elastic assembly is disposed in the central hole.

[0017] According to some embodiments of the present application, the anti-rotation structure further includes a transition piece, one end of the first anti-rotation member and one end of the second anti-rotation member are integrally connected to both ends of the transition member along the third direction, The transition piece is fixedly connected to the movable contact assembly.

[0018] According to some embodiments of the present application, the movable contact assembly further includes a second magnetic body, the second magnetic body being fixedly connected to a side of the movable contact facing away from the fixed contact lead end; The transition piece is fixedly connected to the second conductive body.

[0019] According to some embodiments of the present application, the anti-rotation structure further includes a transition piece, one end of the first anti-rotation member and one end of the second anti-rotation member are integrally connected to both ends of the transition member along the third direction, the push rod assembly further includes a stopper wall, both ends of the stopper wall along the third direction being connected to the first side wall and the second side wall, respectively; The transition piece is fixedly connected to the stop wall.

[0020] According to some embodiments of the present application, the relay further includes a first magnetic conductive body, the first magnetic conductive body being provided on a side of the movable contact assembly facing the fixed contact lead-out end, The transition member is provided between the stopper wall and the first magnetic conductive body, and is fixedly connected to the stopper wall and the first magnetic conductive body.

[0021] According to some embodiments of the present application, the first anti-rotation member is integrally connected to the first side wall and the second anti-rotation member is integrally connected to the second side wall.

[0022] According to some embodiments of the present application, the push rod assembly further includes a rod portion and a base connected to one axial end of the rod portion, the contact bracket further includes a bottom wall, both ends of the bottom wall along the third direction are integrally connected to one ends of the first side wall and the second side wall, respectively; the contact bracket, the rod portion and the base are connected by an injection molding method, and the base covers the bottom wall and one ends of the first side wall and the second side wall; The push rod assembly further includes a stopper wall connected to the other ends of the first side wall and the second side wall, and the stopper wall is provided on a side toward the fixed contact pull-out end of the movable contact assembly.

[0023] According to some embodiments of the present application, the push rod assembly further includes a rod portion and a base connected to one axial end of the rod portion, the contact bracket further includes a top wall, both ends of the top wall along the third direction being integrally connected to one ends of the first side wall and the second side wall, respectively; The other ends of the first side wall and the second side wall are respectively engaged with the base.

[0024] According to some embodiments of the present application, the relay further includes a first magnetic conductive body, the first magnetic conductive body being provided on a side of the movable contact assembly facing the fixed contact lead-out end, the movable contact assembly includes a plurality of movable contacts and a plurality of second conductive bodies, the plurality of movable contacts are arranged side by side along the third direction, the plurality of second conductive bodies are fixedly connected in a one-to-one relationship to the sides of the plurality of movable contacts facing away from the fixed contact pull-out ends, and each of the second conductive bodies forms a conductive circuit with the first conductive body; Here, the two second magnetic conductive bodies located on the outermost sides among the plurality of second magnetic conductive bodies each have the first side surface and the second side surface.

[0025] According to some embodiments of the present application, throughout the entire course of movement of the push rod assembly, the first anti-rotation member always abuts between the first side wall and the first side surface, and the second anti-rotation member always abuts between the second side wall and the second side surface.

[0026] According to some embodiments of the present application, the first anti-rotation member and / or the second anti-rotation member are provided with a slot.

[0027] One embodiment of the present application described above has at least the following advantages or beneficial effects.

[0028] According to the relay of the embodiment of the present application, the first anti-rotation member is provided between the first side wall and the first side surface, and the second anti-rotation member is provided between the second side wall and the second side surface, so that when the movable contact assembly rotates about the axis of the push rod, the first anti-rotation member and / or the second anti-rotation member can abut against the movable contact assembly along the third direction, whereby the movable contact assembly is sandwiched between the first anti-rotation member and the second anti-rotation member, which avoids metallic noise caused by contact friction between the movable contact assembly and the first side wall and the second side wall, significantly reduces the risk of metal particles being generated due to friction between the movable contact assembly and the contact bracket, ensures the reliability of the operation of the relay product, and further reduces the width of rotation of the movable contact assembly around the axis of the push rod relative to the push rod, and further ensures the consistency of the contact position between the movable contact assembly and the fixed contact pull-out end, guaranteeing the stability of the contact resistance. [Brief description of the drawings]

[0029] [Figure 1] FIG. 2 is an exploded schematic diagram of a relay according to an exemplary embodiment. [Diagram 2] FIG. 2 is a schematic plan view of a seal unit according to an exemplary embodiment; [Diagram 3] 3 is a cross-sectional view taken along line AA in FIG. 2, where the movable contact assembly and the fixed contact lead-out end are not in contact with each other. [Figure 4] 3 is a cross-sectional view taken along line BB in FIG. 2, where the movable contact assembly and the fixed contact lead-out end are not in contact with each other. [Diagram 5] 3 is a cross-sectional view taken along line AA in FIG. 2, where the movable contact assembly and the fixed contact lead end are in contact. [Figure 6] 3 is a cross-sectional view taken along line BB in FIG. 2, where the movable contact assembly and the fixed contact lead-out end are in contact. [Figure 7] FIG. 2 is a schematic side view of a movable assembly according to the first exemplary embodiment; [Figure 8]8 is a cross-sectional view taken along line CC in FIG. 7. [Figure 9] FIG. 13 is a schematic side view of a moveable assembly according to a second exemplary embodiment; [Figure 10] 10 is a cross-sectional view taken along line DD in FIG. 9. [Figure 11] FIG. 13 is a schematic side view of a moveable assembly according to a third exemplary embodiment; [Figure 12] 12 is a cross-sectional view taken along line EE in FIG. 11. [Figure 13] 12 is a schematic perspective view of a first anti-rotation member in FIG. 11. FIG. [Figure 14] FIG. 13 is a partial enlarged view of the X1 portion in FIG. [Figure 15] FIG. 13 is a schematic side view of a moveable assembly according to a fourth exemplary embodiment; [Figure 16] 16 is a cross-sectional view taken along the line FF in FIG. 15. [Figure 17] FIG. 16 is a schematic perspective view of the anti-rotation structure in FIG. [Figure 18] FIG. 13 is a schematic perspective view of an anti-rotation structure of another example of a movable assembly according to the fourth exemplary embodiment. [Figure 19] FIG. 13 is a schematic perspective view of an anti-rotation structure of another example of a movable assembly according to the fourth exemplary embodiment; [Figure 20] FIG. 13 is a schematic side view of a movable assembly according to a fifth exemplary embodiment. [Figure 21] 21 is a cross-sectional view taken along line GG in FIG. 20. [Figure 22] FIG. 21 is a schematic perspective view of the anti-rotation structure in FIG. 20. [Figure 23] FIG. 13 is a schematic perspective view of an anti-rotation structure of another example of a movable assembly according to the fifth exemplary embodiment. [Figure 24] FIG. 13 is a schematic perspective view of an anti-rotation structure of another example of a movable assembly according to the fifth exemplary embodiment; [Diagram 25] FIG. 13 is a schematic side view of a movable assembly according to a sixth exemplary embodiment; [Figure 26] 26 is a cross-sectional view taken along the line HH in FIG. 25. [Figure 27] FIG. 26 is a schematic perspective view of the anti-rotation structure in FIG. 25. [Figure 28] FIG. 27 is a partial enlarged view of the X2 portion in FIG. [Figure 29] FIG. 13 is a schematic perspective view of an anti-rotation structure of another example of a movable assembly according to the sixth exemplary embodiment. [Diagram 30] FIG. 13 is a schematic side view of a movable assembly according to a seventh exemplary embodiment; [Diagram 31] FIG. 13 is a schematic perspective view of a movable assembly according to a seventh exemplary embodiment; [Diagram 32] 31 is a schematic perspective view of the anti-rotation structure in FIG. 30. FIG. [Diagram 33] FIG. 13 is a schematic side view of a movable assembly according to an eighth exemplary embodiment. [Diagram 34] 34 is a cross-sectional view taken along line II in FIG. 33. [Diagram 35] FIG. 34 is a schematic perspective view of the anti-rotation structure in FIG. 33. [Diagram 36] FIG. 13 is a schematic side view of a movable assembly according to a ninth exemplary embodiment. [Figure 37] 37 is a cross-sectional view taken along line JJ in FIG. 36. [Figure 38] FIG. 37 is a schematic perspective view of the anti-rotation structure in FIG. 36. [Figure 39] FIG. 19 is a schematic side view of a movable assembly according to a tenth exemplary embodiment. [Diagram 40] 40 is a cross-sectional view taken along line KK in FIG. 39. [Diagram 41] FIG. 40 is a schematic perspective view of the anti-rotation structure in FIG. 39. [Diagram 42] FIG. 19 is a schematic perspective view of a contact bracket in a movable assembly according to an eleventh exemplary embodiment, which is integrally connected to an anti-rotation structure. [Diagram 43] FIG. 23 is a schematic perspective view of a contact bracket in a movable assembly according to a twelfth exemplary embodiment, integrally connected to an anti-rotation structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Next, exemplary embodiments will be described in more detail with reference to the drawings. However, exemplary embodiments can be implemented in various forms and should not be understood to be limited to the embodiments described herein. On the contrary, these embodiments are provided so that this application will be comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. Since the same reference numerals in the drawings represent the same or similar structures, detailed descriptions will be omitted.

[0031] 1, a relay 1 according to an embodiment of the present application includes a housing 10, a coil unit 20, an arc-extinguishing unit 30, and a seal unit 40. The seal unit 40 is provided within the housing 10, and a top portion of a fixed contact lead-out end of the seal unit 40 is exposed to the outer surface of the housing 10 through an exposure hole 11a of the housing 10. The coil unit 20 and the arc-extinguishing unit 30 are both provided within the housing 10.

[0032] It is understood that the terms "comprises," "having," and any variations thereof in the embodiments herein are intended to cover a non-exclusive inclusion, e.g., a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units not listed, or optionally includes other steps or components inherent to those processes, methods, products, or devices.

[0033] As an example, the housing 10 includes a first case 11 and a second case 12, and the first case 11 is connected to the second case 12 to form a chamber for accommodating the coil unit 20, the arc-extinguishing unit 30, and the seal unit 40. In the embodiment of the present application, the exposure hole 11a is provided in the first case 11.

[0034] The arc-extinguishing unit 30 serves to extinguish an arc that occurs between the fixed contact drawn-out end of the seal unit 40 and the movable contact.

[0035] As an example, the arc-extinguishing unit 30 includes two arc-extinguishing magnets 31. The arc-extinguishing magnets 31 may be permanent magnets, and each of the arc-extinguishing magnets 31 may be substantially rectangular. The two arc-extinguishing magnets 31 are provided on both sides of the seal unit 40, respectively, and are provided facing each other along the longitudinal direction of the movable contact.

[0036] By providing two opposing arc-extinguishing magnets 31, a magnetic field can be formed around the fixed contact pull-out end and the movable contact. Therefore, the arc generated between the fixed contact pull-out end and the movable contact is stretched in a direction away from each other by the action of the magnetic field, thereby realizing arc extinction.

[0037] The arc-extinguishing unit 30 further includes two yoke clamps 32 provided corresponding to the positions of the two arc-extinguishing magnets 31. The two yoke clamps 32 surround the seal unit 40 and the two arc-extinguishing magnets 31. The design of the yoke clamps 32 surrounding the arc-extinguishing magnets 31 can prevent the magnetic field generated by the arc-extinguishing magnets 31 from diffusing to the outside and affecting the arc-extinguishing effect. The yoke clamps 32 are made of a soft magnetic material. Examples of the soft magnetic material include, but are not limited to, iron, cobalt, nickel, and alloys thereof.

[0038] As shown in FIGS. 2 to 6, the seal unit 40 includes a contact receptacle 1000, a pair of fixed contact pull-out ends 2000, a movable assembly 3000, and a magnetic circuit portion 4000. The contact receptacle 1000 includes a contact holder 1000a.

[0039] The contact container 1000 is a stationary member for housing the contact assembly, and is a device having a chamber with a case as a main component. The contact container 1000 may be a device in which a plurality of members are connected by a predetermined assembly method.

[0040] The contact container 1000 has a contact chamber 1001 inside. The contact container 1000 may include an insulating cover 1100 and a yoke plate 1200, where the insulating cover 1100 covers one side of the yoke plate 1200, and the insulating cover 1100 and the yoke plate 1200 together form the contact chamber 1001.

[0041] The insulating cover 1100 includes a ceramic cover 1110 and a flange member 1120. The ceramic cover 1110 is connected to the yoke plate 1200 via the flange member 1120. The flange member 1120 may be a metal part having an annular structure, such as an iron-nickel alloy, and one end of the flange member 1120 is connected to an opening edge of the ceramic cover 1110 by laser welding, brazing, resistance welding, adhesion, or the like. The other end of the flange member 1120 may be connected to the yoke plate 1200 by laser welding, brazing, resistance welding, adhesion, or the like. The flange member 1120 is provided between the ceramic cover 1110 and the yoke plate 1200, which can facilitate the connection between the ceramic cover 1110 and the yoke plate 1200.

[0042] The contact container 1000 further has a pair of first through holes 1002, which communicate with the contact chamber 1001. The first through holes 1002 are used to drill the fixed contact lead ends 2000. In this embodiment, the first through holes 1002 are opened in the ceramic cover 1110.

[0043] The pair of fixed contact lead ends 2000 are connected to the ceramic cover 1110 of the contact container 1000, and at least a portion of each fixed contact lead end 2000 is located within the contact chamber 1001. One of the pair of fixed contact lead ends 2000 functions as a terminal through which current flows in, and the other functions as a terminal through which current flows out.

[0044] The pair of fixed contact lead-out ends 2000 are drilled in a pair of first through-holes 1002 in a one-to-one correspondence, and are connected to the ceramic cover 1110 by, for example, welding.

[0045] The bottom of the fixed contact lead-out end 2000 serves as a fixed contact, and the fixed contact may be provided integrally with or separately from the bottom of the fixed contact lead-out end 2000 .

[0046] 3 to 6, the movable assembly 3000 includes a movable contact assembly 3100, a push rod assembly 3200, and an elastic assembly 3300. The movable contact assembly 3100 is provided in the insulating cover 1100, and is attached to the push rod assembly 3200 via the elastic assembly 3300. Both ends of the movable contact assembly 3100 along a first direction D1 are in contact with or separated from the pair of fixed contact lead ends 2000, respectively. Here, the first direction D1 is the arrangement direction of the pair of fixed contact lead ends 2000.

[0047] In addition, if a pair of fixed contact lead-out ends 2000 and one movable contactor assembly 3100 are considered as one combination, the relay according to the embodiment of the present application may include a plurality of combinations.

[0048] The movable contact assembly 3100 may include a movable contact 3110, and both ends of the movable contact 3110 along the first direction D1 are in contact with or spaced apart from a pair of fixed contact pull-out ends 2000, respectively.

[0049] The number of the movable contacts 3110 may be one or more.

[0050] Each movable contactor 3110 may include a movable contactor body and a movable contact provided at both ends of the movable contactor body. The movable contacts may be a separate part and connected to the movable contactor body. Of course, the movable contacts may be integrally molded with the movable contactor body.

[0051] In the embodiment of the present application, the movable contactor assembly 3100 includes two movable contactors 3110 arranged side by side. One end of each of the two movable contactors 3110 is in contact with or spaced apart from the fixed contacts of one of the fixed contact pull-out ends 2000, and the other end of each of the two movable contactors 3110 is in contact with or spaced apart from the fixed contacts of the other fixed contact pull-out end 2000. Furthermore, one end of each of the two movable contactors 3110 forms two contact points with one of the fixed contact pull-out ends 2000, and the other end of each of the two movable contactors 3110 forms two contact points with the other fixed contact pull-out end 2000.

[0052] In other embodiments, the number of movable contacts 3110 may be one, three, four, five, etc.

[0053] In addition, the movable contactor assembly 3100 includes a plurality of movable contactors 3110, and both ends of the plurality of movable contactors 3110 along the first direction D1 are respectively in contact with or separated from a pair of fixed contact lead ends. Since the plurality of movable contactors 3110 are not restricted by each other, when both ends of the plurality of movable contactors 3110 along the first direction D1 are respectively in contact with a pair of fixed contact lead ends 2000, a reliable parallel circuit is formed. The number of contacts formed by the plurality of movable contactors 3110 and one fixed contact lead end 2000 is two or more, which realizes the effect of current division. In addition, based on the principle that the magnitude of the electromotive repulsive force is proportional to the square of the current, the magnitude of the electromotive repulsive force of each contact is significantly reduced, which is favorable to improving the short-circuit resistance capability and improving the reliability of the relay.

[0054] Furthermore, the movable contact assembly 3100 may further include a second magnetic conductive body 6200, which is fixedly connected to the side of the movable contact 3110 facing away from the fixed contact lead end 2000. The function of the second magnetic conductive body 6200 will be described below.

[0055] Here, the numbers of the movable contactors 3110 and the second magnetic conductive bodies 6200 included in the movable contactor assembly 3100 correspond to each other. Specifically, when the number of the movable contactor 3110 is one, the number of the second magnetic conductive bodies 6200 is also one. When the number of the movable contactors 3110 is multiple (including two), the number of the second magnetic conductive bodies 6200 is also multiple. The multiple second magnetic conductive bodies 6200 are fixedly connected in a one-to-one relationship to the sides of the multiple movable contactors 3110 facing away from the fixed contact lead-out ends 2000.

[0056] 3 to 6, the moving direction of the movable contact 3110 is defined as a second direction D2, and a direction perpendicular to the first direction D1 and the second direction D2 is defined as a third direction D3. The push rod assembly 3200 includes a push rod 3210, a contact bracket 3220, and a stopper wall 3230. The push rod 3210 includes a base 3211 and a rod portion 3212, and the base 3211 is connected to one end of the rod portion 3212 in the axial direction. The contact bracket 3220 includes a bottom wall 3221, a first side wall 3222a, and a second side wall 3222b, and the first side wall 3222a and the second side wall 3222b are provided opposite to each other along the third direction D3. One ends of the first side wall 3222a and the second side wall 3222b are integrally connected to both sides of the bottom wall 3221 along the third direction D3, respectively, and the other ends of the first side wall 3222a and the second side wall 3222b are connected to a stopper wall 3230. The stopper wall 3230 is provided on the side facing the fixed contact pull-out end 2000 of the movable contact assembly 3100. The movable contact assembly 3100 is attached within a space surrounded by the contact bracket 3220 and the base 3211 via an elastic assembly 3300.

[0057] The first side wall 3222a has a first opening 3228, and the second side wall 3222b has a second opening 3229. Both ends of the stopper wall 3230 along the third direction D3 are engaged in the first opening 3228 and the second opening 3229, respectively.

[0058] Here, the contact bracket 3220, the rod portion 3212 and the base 3211 are connected by injection molding, and the base 3211 covers the bottom wall 3221, one end of the first side wall 3222a and one end of the second side wall 3222b.

[0059] In another embodiment, both ends of the stopper wall 3230 may also be integrally connected to the first side wall 3222a and the second side wall 3222b, respectively.

[0060] The elastic assembly 3300 is provided between the movable contact assembly 3100 and the base 3211, and applies an elastic force to the movable contact assembly 3100 to move it toward the stopper wall 3230, thereby providing a contact pressure.

[0061] It will be appreciated that the elastic assembly 3300 can flexibly support the movable contact assembly 3100 to provide contact pressure.

[0062] Here, when the number of the movable contacts 3110 is plural, the multiple movable contacts 3110 are arranged side by side along the third direction D3.

[0063] 3 to 6, the yoke plate 1200 has a second through hole 1210, which penetrates two opposing side surfaces of the yoke plate 1200 along the thickness direction of the yoke plate 1200, and the second through hole 1210 communicates with the contact chamber 1001 of the contact container 1000. The rod portion 3212 is drilled in the second through hole 1210 so as to be movable along the axial direction. A base 3211 at one axial end of the rod portion 3212 is provided within the contact chamber 1001.

[0064] The seal unit 40 further includes a metal cover 5000, which is connected to the side of the yoke plate 1200 facing away from the insulating cover 1100, and the metal cover 5000 covers the second through hole 1210 of the yoke plate 1200. The metal cover 5000 and the yoke plate 1200 are surrounded as a chamber for accommodating the fixed iron core 4300 and the movable iron core 4400 of the magnetic circuit section 4000.

[0065] 1, the coil unit 20 includes a coil bobbin 21 and a coil 22. The coil bobbin 21 is hollow and made of an insulating material. The metal cover 5000 is provided inside the coil bobbin 21. The coil 22 surrounds the coil bobbin 21.

[0066] As shown in Figs. 3 to 6, the magnetic circuit section 4000 includes a fixed core 4300, a movable core 4400, and a reset member 4500. The fixed core 4300 is fixedly provided in the metal cover 5000, and a part of the fixed core 4300 enters the second through hole 1210. The fixed core 4300 has a through hole 4310, which is provided corresponding to the position of the second through hole 1210 and is used to drill the rod section 3212. The movable core 4400 is movably provided in the metal cover 5000, and is provided facing the fixed core 4300 along the axial direction of the rod section 3212. The movable core 4400 is connected to the rod section 3212, and is attracted to the fixed core 4300 when the coil 22 is energized. The movable core 4400 and the rod portion 3212 can be connected by screwing, caulking, welding, or other methods.

[0067] The reset member 4500 is located inside the metal cover 5000 and is provided between the fixed core 4300 and the movable core 4400, and is used to reset the movable core 4400 when the power supply to the coil 22 is cut off. The reset member 4500 may be a spring, and may be fitted onto the outside of the rod portion 3212.

[0068] When the coil 22 is energized, the fixed core 4300 attracts the movable core 4400 and moves it upward, and the movable core 4400 can drive the push rod assembly 3200 to move upward via the rod portion 3212. When the movable contactor 3110 comes into contact with the fixed contact pull-out end 2000, the movable contactor 3110 is butted against the fixed contact pull-out end 2000, but the rod portion 3212 and the base 3211 continue to move upward until the overtravel is completed.

[0069] In the process of overtravel, the base 3211 presses the elastic assembly 3300, and after being pressed, the elastic assembly 3300 can provide an elastic force to the movable contact assembly 3100 to provide contact pressure.

[0070] Continuing with reference to Figures 4 and 6, the relay 1 further includes a first magnetic body 6100, which is fixedly connected to one side of the stopper wall 3230 facing the movable contact assembly 3100, and the first magnetic body 6100 is located on the side facing the fixed contact pull-out end 2000 of the movable contact assembly 3100.

[0071] When electricity is applied to the movable contactor 3110, the first magnetic conductive body 6100 is magnetized, thereby generating an attractive force on the movable contactor 3110 in the direction of closing the contacts. This attractive force resists the electromotive repulsive force caused by the short-circuit current between the movable contactor 3110 and the fixed contact pull-out end 2000, preventing the movable contactor 3110 and the fixed contact pull-out end 2000 from bouncing off each other, thereby preventing a short circuit.

[0072] Here, when the movable contactor assembly 3100 includes multiple movable contactors 3110 arranged in a line, the number of first magnetic bodies 6100 may be multiple, and the number of first magnetic bodies 6100 corresponds to the number of movable contactors 3110, and the multiple first magnetic bodies 6100 are each located on the side facing the fixed contact pull-out end 2000 of the multiple movable contactors 3110.

[0073] Of course, in other embodiments, when the movable contact assembly 3100 includes multiple movable contacts 3110 arranged side by side, the number of first magnetic bodies 6100 may be one, and this first magnetic body 6100 is arranged across the multiple movable contacts 3110 in the third direction D3.

[0074] Furthermore, when the movable contact assembly 3100 includes the movable contact 3110 and the second magnetic conductive body 6200, the second magnetic conductive body 6200 is fixedly connected to the side of the movable contact 3110 facing away from the fixed contact lead end 2000. The second magnetic conductive body 6200 forms a magnetic circuit with the first magnetic conductive body 6100.

[0075] Here, the number of the second magnetic conductive bodies 6200 corresponds to the number of the movable contacts 3110. In the embodiment of the present application, the number of the second magnetic conductive bodies 6200 is two, but is not limited thereto. The two second magnetic conductive bodies 6200 are fixedly connected to the sides facing away from the fixed contact lead ends 2000 of the two movable contacts 3110, respectively.

[0076] When both ends of the movable contactor 3110 contact the pair of fixed contact lead ends 2000, a current flows through the movable contactor 3110, forming a magnetic circuit surrounding the movable contactor 3110 between the first magnetic conductive body 6100 and the second magnetic conductive body 6200. When a short-circuit current passes through the movable contactor 3110, an attractive force along the pressure direction of the contacts is generated between the first magnetic conductive body 6100 and the second magnetic conductive body 6200. This attractive force resists the electric repulsive force caused by the short-circuit current between the movable contactor 3110 and the fixed contact lead end 2000, and the popping of the movable contactor 3110 and the fixed contact lead end 2000 can be prevented.

[0077] In addition, the first magnetic conductive body 6100 and the second magnetic conductive body 6200 may have a straight or U-shaped structure. The first magnetic conductive body 6100 and the second magnetic conductive body 6200 may be made of soft magnetic materials such as iron, cobalt, nickel, and alloys thereof.

[0078] In another embodiment, the first magnetic conductive body 6100 may be fixedly provided with respect to the contact can 1000 without being attached to the stopper wall 3230 of the push rod assembly 3200. In this way, the attractive force resisting a short circuit is transmitted to the contact can 1000, and since the contact can 1000 is a stationary member, excessive coil holding force is not required, further reducing the power consumption of the coil of the relay 1 and the volume of the relay 1, and improving the short circuit resistance.

[0079] In a specific embodiment, the first magnetic conductive body 6100 may be fixedly connected to the ceramic cover 1110 of the contact vessel 1000 .

[0080] In another specific embodiment, the first magnetic conductive body 6100 is also fixedly mounted in the contact receptacle 1000 by a fixed bracket (not shown). Specifically, the fixed bracket is mounted in the contact receptacle 1000 and fixedly connected to the yoke plate 1200, and the first magnetic conductive body 6100 is fixedly connected to the fixed bracket.

[0081] In yet another embodiment, the distance between the first magnetic conductive body 6100 and the second magnetic conductive body 6200 can be designed to be variable. Specifically, the distance between the first magnetic conductive body 6100 and the second magnetic conductive body 6200 can be adjusted according to the magnitude of the current value, and the magnitude of the magnetic attraction force generated between the first magnetic conductive body 6100 and the second magnetic conductive body 6200 can be changed to meet not only the short circuit resistance requirement but also the overload interruption requirement.

[0082] Optionally, the first magnetic conductive body 6100 may include a plurality of laminated magnetic conductive pieces. By increasing the number of thin magnetic conductive pieces, the overall thickness of the first magnetic conductive body 6100 can be increased. Since the thickness of the magnetic conductive pieces is relatively thin and they can be made of a thin strip-shaped material, the material cost is low and the operation is easy. Meanwhile, the number of magnetic conductive pieces can be flexibly adjusted according to the magnitude of the short-circuit current.

[0083] 4 and 6, the movable contact assembly 3100 has a first side 3100a and a second side 3100b that are provided opposite to each other along a third direction D3. The first side 3100a corresponds to a first side wall 3222a of the contact bracket 3220, and the second side 3100b corresponds to a second side wall 3222b of the contact bracket 3220.

[0084] When the movable contact assembly 3100 includes a plurality of movable contacts 3110 and a plurality of second conductive bodies 6200, the two second conductive bodies 6200 located outermost in the plurality of second conductive bodies 6200 each have a first side 3100a and a second side 3100b.

[0085] In another embodiment, when the movable contact assembly 3100 includes only a plurality of movable contacts 3110, the two movable contacts 3110 located outermost in the plurality of movable contacts 3110 each have a first side 3100a and a second side 3100b.

[0086] As shown in Figures 7 and 8, the relay 1 of the embodiment of the present application further includes an anti-rotation structure 300, which includes a first anti-rotation member 310 and a second anti-rotation member 320, where the first anti-rotation member 310 is provided between the first side wall 3222a and the first side surface 3100a, and the second anti-rotation member 320 is provided between the second side wall 3222b and the second side surface 3100b.

[0087] According to the relay 1 of the embodiment of the present application, the first anti-rotation member 310 is provided between the first side wall 3222a and the first side surface 3100a, and the second anti-rotation member 320 is provided between the second side wall 3222b and the second side surface 3100b. Therefore, when the movable contact assembly 3100 rotates with respect to the axis of the push rod, the first anti-rotation member 310 and / or the second anti-rotation member 320 can abut against the movable contact assembly 3100 along the third direction D3. As a result, the movable contact assembly 3100 can rotate with respect to the axis of the push rod. The movable contact assembly 3100 is sandwiched between the anti-rotation member 320, thereby avoiding metallic noise caused by contact friction between the movable contact assembly 3100 and the first side wall 3222a and the second side wall 3222b, significantly reducing the risk of metal particles being generated due to friction between the movable contact assembly 3100 and the contact bracket 3220, ensuring the reliability of the operation of the relay 1 product, reducing the amount of rotation of the movable contact assembly 3100 around the axis of the push rod relative to the push rod, and further ensuring the consistency of the contact position between the movable contact assembly 3100 and the fixed contact pull-out end 2000, thereby guaranteeing stable contact resistance.

[0088] 8, in the first embodiment of the present application, the first anti-rotation member 310 and the second anti-rotation member 320 are both sheet structures made of flexible materials. The first side wall 3222a has a first inner surface 3223 facing the movable contact assembly 3100, and the first anti-rotation member 310 is attached to the first inner surface 3223 or the first side surface 3100a. The second side wall 3222b has a second inner surface 3225 facing the movable contact assembly 3100, and the second anti-rotation member 320 is attached to the second inner surface 3225 or the second side surface 3100b.

[0089] In one embodiment, the flexible material may be a non-metallic material such as, but not limited to, rubber or a wear-resistant plastic.

[0090] Here, the first anti-rotation member 310 may be attached to the first inner surface 3223 or the first side surface 3100a by a connection method such as welding or adhesive, and the second anti-rotation member 320 may be attached to the second inner surface 3225 or the second side surface 3100b by a connection method such as welding or adhesive.

[0091] In the embodiment of the present application, the first anti-rotation member 310 and the second anti-rotation member 320 are both made of a flexible material, which can reduce the wear of the first anti-rotation member 310 and the second anti-rotation member 320 against the movable contact assembly 3100, and can also reduce the frictional force between the first anti-rotation member 310 and the first side surface 3100a and between the second anti-rotation member 320 and the second side surface 3100b, thereby avoiding the influence on the overtravel process. In addition, the flexible material can reduce the deflection force of the movable contact assembly 3100 against the contact bracket 3220, thereby reducing the rotation width of the movable contact assembly 3100 and reducing the frictional resistance and noise caused by mutual friction between the movable contact assembly 3100 and the contact bracket 3220.

[0092] Of course, in other embodiments, the first anti-rotation member 310 may be connected to the first side 3100a and the second anti-rotation member 320 may be connected to the second side 3100b.

[0093] Furthermore, during the entire movement of the push rod assembly 3200, the first anti-rotation member 310 always abuts between the first side wall 3222a and the first side surface 3100a, and the second anti-rotation member 320 always abuts between the second side wall 3222b and the second side surface 3100b. Specifically, before the movable contact 3110 contacts the fixed contact pull-out end 2000, the first anti-rotation member 310 abuts between the first side wall 3222a and the first side surface 3100a, and the second anti-rotation member 320 abuts between the second side wall 3222b and the second side surface 3100b. In the initial stage of over-travel (i.e., immediately after the movable contact 3110 contacts the fixed contact pull-out end 2000), the first anti-rotation member 310 abuts between the first side wall 3222a and the first side surface 3100a, and the second anti-rotation member 320 abuts between the second side wall 3222b and the second side surface 3100b. In the final stage of over-travel (i.e., when the movable core 4400 contacts the fixed core 4300), the first anti-rotation member 310 still abuts between the first side wall 3222a and the first side surface 3100a, and the second anti-rotation member 320 still abuts between the second side wall 3222b and the second side surface 3100b. Moreover, at any position between the initial stage of the overtravel and the final stage of the overtravel, the first anti-rotation member 310 abuts between the first side wall 3222a and the first side surface 3100a, and the second anti-rotation member 320 abuts between the second side wall 3222b and the second side surface 3100b. In this way, the movable contactor assembly 3100 can maintain stability throughout the entire movement of the movable assembly 3000, and the width of rotation of the movable contactor assembly 3100 around the axis of the push rod relative to the push rod can be reduced.

[0094] As shown in Figures 9 and 10, the movable assembly 3000 according to the second embodiment of the present invention is similar to the movable assembly 3000 according to the first embodiment, so a description thereof will be omitted, but the differences are as follows.

[0095] The contact bracket 3220 of the push rod assembly 3200 is inverted U-shaped and includes a top wall 3227 and two side walls (the two side walls respectively correspond to the first side wall 3222a and the second side wall 3222b in the first embodiment described above), one end of each of the two side walls being integrally connected to both sides of the top wall 3227 along the third direction D3, and the other ends of each of the two side walls being engaged with the base 3211.

[0096] As shown in FIGS. 11 to 14, a movable assembly 3000 according to the third embodiment of the present invention and the movable assembly 3000 according to the first embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0097] The first anti-rotation member 310 and the second anti-rotation member 320 are both elastic sheets. The first anti-rotation member 310 is pressed between the first side wall 3222a and the first side surface 3100a of the movable contact assembly 3100, and provides a first elastic force to the movable contact assembly 3100. The second anti-rotation member 320 is pressed between the second side wall 3222b and the second side surface 3100b of the movable contact assembly 3100, and provides a second elastic force to the movable contact assembly 3100. The directions of the first elastic force and the second elastic force are opposite to each other.

[0098] In an embodiment of the present application, the first anti-rotation member 310 and the second anti-rotation member 320 are both elastic sheets, and the elastic force of the elastic sheets can absorb the deflection amount of the movable contact assembly 3100, reduce the deflection force between the movable contact assembly 3100 and the first side wall 3222a and the second side wall 3222b of the contact bracket 3220, and reduce the frictional resistance and frictional noise between the movable contact assembly 3100 and the contact bracket 3220.

[0099] 12 to 14, the first anti-rotation member 310 and the second anti-rotation member 320 each include a connection portion 330 and an elastic sheet portion 340. The two connection portions 330 are connected to the first side wall 3222a and the second side wall 3222b, respectively, and the two elastic sheet portions 340 extend from the two connection portions 330 in a direction away from the fixed contact pull-out end 2000, respectively, and the two elastic sheet portions 340 provide the movable contact assembly 3100 with a first elastic force and a second elastic force, respectively.

[0100] The connection portion 330 includes two hanging hooks 331, and the two hanging hooks 331 are hung on the lower edges of the first opening 3228 and the second opening 3229, respectively.

[0101] As shown in FIGS. 15 to 17, a movable assembly 3000 according to the fourth embodiment of the present invention and a movable assembly 3000 according to the third embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0102] The anti-rotation structure 300 further includes a transition member 360, where one end of the first anti-rotation member 310 and one end of the second anti-rotation member 320 are integrally connected to both ends of the transition member 360 along the third direction D3. The transition member 360 has a central hole 361, and the elastic assembly 3300 is drilled in the central hole 361.

[0103] In the embodiment of the present application, the anti-rotation structure 300 further includes a transition piece 360, which is integrally connected to the first anti-rotation member 310 and the second anti-rotation member 320 via the transition piece 360, thereby improving the structural strength of the anti-rotation structure 300 and preventing the first anti-rotation member 310 and the second anti-rotation member 320 from rocking.

[0104] 18, in another embodiment, the first anti-rotation member 310 and the second anti-rotation member 320 of the anti-rotation structure 300 are both provided with a slot 350. Here, the extending direction of the slot 350 is substantially parallel to the second direction D2.

[0105] 19, in yet another embodiment, the first anti-rotation member 310 and the second anti-rotation member 320 of the anti-rotation structure 300 are both provided with slots 350. Here, the extending direction of the slots 350 is inclined with respect to the second direction D2.

[0106] In the embodiment of the present application, the slots 350 are provided in the first anti-rotation member 310 and the second anti-rotation member 320, thereby improving the flexibility of the first anti-rotation member 310 and the second anti-rotation member 320 and reducing the elastic force of the first anti-rotation member 310 and the second anti-rotation member 320, thereby better absorbing the deflection force of the movable contact assembly 3100. Meanwhile, wear on the movable contact assembly 3100 due to the high rigidity of the first anti-rotation member 310 and the second anti-rotation member 320 can be avoided.

[0107] As shown in FIGS. 20 to 22, a movable assembly 3000 according to the fifth embodiment of the present invention and a movable assembly 3000 according to the fourth embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0108] Each of the connecting portions 330 includes an engagement structure 332, and the engagement structures 332 of the two connecting portions 330 are engaged in the first opening 3228 and the second opening 3229, respectively.

[0109] 22, the engagement structure 332 includes two connection sheets 332b, which are connected to the elastic sheet portion 340. One of the connection sheets 332b is provided with a locking hook 332a.

[0110] 23, the engagement structure 332 includes three connection sheets 332b arranged in sequence along the third direction D3, with a slit between two adjacent connection sheets 332b. Here, each of the two outermost connection sheets 332b is provided with one locking hook 332a.

[0111] As shown in FIG. 24, the engagement structure 332 includes one connection sheet 332b, and one end of the connection sheet 332b along the third direction D3 is provided with a locking hook 332a.

[0112] As shown in FIGS. 25 to 28, a movable assembly 3000 according to the sixth embodiment of the present invention and a movable assembly 3000 according to the fifth embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0113] The engagement structures 332 are seat structures, and the two engagement structures 332 are engaged in the first opening 3228 and the second opening 3229, respectively.

[0114] The first side wall 3222a is further provided with a first connection hole 410, and the second side wall 3222b is further provided with a second connection hole 420. Each connection portion 330 further includes a protrusion 333, and the protrusions 333 of the two connection portions 330 enter the first connection hole 410 and the second connection hole 420, respectively, and are press-fitted into the first connection hole 410 and the second connection hole 420, respectively.

[0115] As shown in FIG. 27, the cross-sectional shape of the protrusion 333 is circular.

[0116] In other embodiments, the cross-sectional shape of the protrusion 333 may be elliptical, as shown in Figure 29. Of course, in other embodiments, the cross-sectional shape of the protrusion 333 may be other shapes, such as rectangular, triangular, etc.

[0117] As shown in FIGS. 30 to 32, a movable assembly 3000 according to the seventh embodiment of the present invention and a movable assembly 3000 according to the fifth embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0118] Both the first side wall 3222a and the second side wall 3222b are provided with a protruding claw 600. Each connecting portion 330 includes a collar 334, and the collars 334 of the two connecting portions 330 are fitted onto the outer periphery of the protruding claw 600 of the first side wall 3222a and the outer periphery of the protruding claw 600 of the second side wall 3222b, respectively.

[0119] In the embodiment of the present application, one end of the first side wall 3222a away from the base 3211 is provided with two convex claws 600 spaced apart along the third direction D3, and the first anti-rotation member 310 is provided with two collars 334, and the two collars 334 of the first anti-rotation member 310 are respectively fitted onto the outer periphery of the two convex claws 600 of the first side wall 3222a.

[0120] One end of the second side wall 3222b away from the base 3211 is provided with two convex claws 600 spaced apart along the third direction D3, and the second anti-rotation member 320 is provided with two collars 334, which are respectively fitted onto the outer periphery of the two convex claws 600 of the second side wall 3222b.

[0121] In addition, in an embodiment of the present application, the movable contact assembly 3100 includes one movable contact 3110 and two second conductive bodies 6200, and the movable contact 3110 is provided with a via hole, and each second conductive body 6200 has a U-shaped structure, and two adjacent sides of the two U-shaped structures are inserted into the same via hole.

[0122] As shown in FIGS. 33 to 35, a movable assembly 3000 according to an eighth embodiment of the present invention and a movable assembly 3000 according to the third embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0123] The connection portion 330 of the first anti-rotation member 310 is crimped to a first inner surface 3223 of the first side wall 3222a facing the movable contact assembly 3100, and the connection portion 330 of the second anti-rotation member 320 is crimped to a second inner surface 3225 of the second side wall 3222b facing the movable contact assembly 3100.

[0124] In another embodiment, the connection portion 330 of the first anti-rotation member 310 is welded to a first inner surface 3223 of the first side wall 3222a facing the movable contact assembly 3100, and the connection portion 330 of the second anti-rotation member 320 is welded to a second inner surface 3225 of the second side wall 3222b facing the movable contact assembly 3100.

[0125] In addition, in the embodiment of the present application, the anti-rotation structure 300 further includes a transition member 360, and one end of the first anti-rotation member 310 and one end of the second anti-rotation member 320 are integrally connected to both ends of the transition member 360 along the third direction D3, respectively.

[0126] As shown in FIGS. 36 to 38, a movable assembly 3000 according to the ninth embodiment of the present invention and the movable assembly 3000 according to the first embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0127] The anti-rotation structure 300 further includes a transition member 360, and one end of the first anti-rotation member 310 and one end of the second anti-rotation member 320 are integrally connected to both ends of the transition member 360 along the third direction D3, respectively. The transition member 360 is fixedly connected to the movable contact assembly 3100. One end of the elastic assembly 3300 abuts the base 3211, and the other end abuts the transition member 360.

[0128] As an example, transition member 360 is fixedly connected to second conductive body 6200. Furthermore, transition member 360 and second conductive body 6200 are connected by methods such as, but not limited to, crimping, welding, and the like.

[0129] As shown in FIGS. 39 to 41, a movable assembly 3000 according to the tenth embodiment of the present invention and the movable assembly 3000 according to the ninth embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0130] The transition member 360 is provided between the stopper wall 3230 and the first magnetic conductive body 6100, and is fixedly connected to the stopper wall 3230 and the first magnetic conductive body 6100. That is, when assembling the push rod assembly 3200, the stopper wall 3230, the first magnetic conductive body 6100, and the anti-rotation structure 300 can first be fixedly connected as an integral member, and then this integral member and the contact bracket 3220 can be connected.

[0131] Furthermore, the stopper wall 3230, the first magnetic conductive body 6100, and the transition piece 360 ​​of the anti-rotation structure 300 may be connected by a method such as crimping or welding, but is not limited to these.

[0132] As shown in FIG. 42, a movable assembly 3000 according to an eleventh embodiment of the present invention and the movable assembly 3000 according to the first embodiment will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0133] The first anti-rotation member 310 and the second anti-rotation member 320 are both elastic sheets. The first anti-rotation member 310 is integrally connected to the first side wall 3222a, and the second anti-rotation member 320 is integrally connected to the second side wall 3222b. The first anti-rotation member 310 provides a first elastic force to the movable contact assembly 3100, and the second anti-rotation member 320 provides a second elastic force to the movable contact assembly 3100.

[0134] Furthermore, the first side wall 3222a further has a third opening 510, and the second side wall 3222b further has a fourth opening 520. The first anti-rotation member 310 is integrally connected to an upper edge of the third opening 510, and the second anti-rotation member 320 is integrally connected to an upper edge of the fourth opening 520.

[0135] As shown in FIG. 43, a movable assembly 3000 according to the twelfth embodiment of the present invention and a movable assembly 3000 according to the eleventh embodiment of the present invention will not be described in terms of the similarities therebetween, but the differences therebetween are as follows.

[0136] The first anti-rotation member 310 is integrally connected to a lower edge of the third opening 510 , and the second anti-rotation member 320 is integrally connected to a lower edge of the fourth opening 520 .

[0137] In the above third to twelfth embodiments, both the first rotation prevention member 310 and the second rotation prevention member 320 may be provided with a slot 350.

[0138] In addition, various examples / embodiments provided in the present application can be combined with each other without causing any contradiction, and therefore, description thereof will be omitted here.

[0139] In the embodiments of the present application, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood to indicate or imply relative importance. The term "plurality" means two or more unless otherwise limited. Terms such as "attach", "contact", "connect", and "fixed" should be understood broadly. For example, "connection" may be a fixed connection, a removable connection, or an integral connection. "Contact" may be a direct connection or an indirect connection via an intermediate medium. The specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art according to the specific circumstances.

[0140] In describing the embodiments of the present application, the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "front," "rear," and the like are orientations or positional relationships based on the drawings and are intended merely to facilitate the explanation and simplification of the description of the embodiments of the present application, and are not to be understood as limitations on the embodiments of the present application, rather than indicating or implying that the indicated device or unit is required to have a particular orientation in order to be configured and operate in a particular orientation.

[0141] In the description herein, the terms "one embodiment," "some embodiments," "particular embodiments," and the like mean that the particular feature, structure, material, or characteristic described in connection with this embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In the present specification, general expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0142] The above are only preferred embodiments of the present application, and are not used to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are intended to be included in the protection scope of the present application.

Claims

1. A pair of fixed contact lead ends; a movable contact assembly including a movable contact; a push rod assembly including a contact bracket; an anti-rotation structure including a first anti-rotation member and a second anti-rotation member; Both ends of the movable contact along a first direction are in contact with or separated from the pair of fixed contact pull-out ends, the first direction is a direction in which the pair of fixed contact pull-out ends are arranged, the movable contact assembly has a first side surface and a second side surface opposed to each other along a third direction, a moving direction of the movable contact is defined as a second direction, and the first direction, the second direction, and the third direction are perpendicular to each other, the contact bracket has a first side wall and a second side wall provided opposite to each other along the third direction, the first side wall corresponding to the first side surface, and the second side wall corresponding to the second side surface; The first anti-rotation member is provided between the first side wall and the first side surface, and the second anti-rotation member is provided between the second side wall and the second side surface. A relay characterized by:

2. the first anti-rotation member and the second anti-rotation member are both sheet structures made of a flexible material; The first side wall has a first inner surface facing the movable contact assembly, and the first anti-rotation member is attached to the first inner surface or the first side surface, and the second side wall has a second inner surface facing the movable contact assembly, and the second anti-rotation member is attached to the second inner surface or the second side surface.

2. A relay as claimed in claim 1.

3. the first anti-rotation member and the second anti-rotation member are both elastic sheets; the first anti-rotation member is pressed between the first side wall and the first side of the movable contact assembly to provide a first elastic force to the movable contact assembly, and the second anti-rotation member is pressed between the second side wall and the second side of the movable contact assembly to provide a second elastic force to the movable contact assembly; The directions of the first elastic force and the second elastic force are opposite to each other.

2. A relay as claimed in claim 1.

4. each of the first anti-rotation member and the second anti-rotation member includes a connection portion and an elastic sheet portion; The two connection portions are connected to the first side wall and the second side wall, respectively, and the two elastic sheet portions extend from the two connection portions in a direction away from the fixed contact pull-out end, respectively, and the two elastic sheet portions provide the first elastic force and the second elastic force to the movable contact assembly, respectively.

4. A relay as claimed in claim 3.

5. The connection portion of the first anti-rotation member is crimped to a first inner surface of the first side wall facing the movable contact assembly, and the connection portion of the second anti-rotation member is crimped to a second inner surface of the second side wall facing the movable contact assembly.

5. A relay as claimed in claim 4.

6. The first sidewall has a first opening, and the second sidewall has a second opening; Each of the connection parts includes a hook, and the hooks of the two connection parts are hooked on the lower edge of the first opening and the lower edge of the second opening, respectively.

5. A relay as claimed in claim 4.

7. The first sidewall has a first opening, and the second sidewall has a second opening; Each of the connection portions includes an engagement structure, and the engagement structures of the two connection portions are engaged in the first opening and the second opening, respectively.

5. A relay as claimed in claim 4.

8. a first connection hole is further provided in the first side wall, and a second connection hole is further provided in the second side wall; Each of the connection parts further includes a protrusion, and the protrusions of the two connection parts enter into the first connection hole and the second connection hole, respectively, and are press-fitted into the first connection hole and the second connection hole, respectively.

8. A relay as claimed in claim 7.

9. The first side wall and the second side wall are both provided with protruding claws, Each of the connection parts includes a collar, and the collars of the two connection parts are fitted onto the outer periphery of the protruding claw of the first side wall and the outer periphery of the protruding claw of the second side wall, respectively.

5. A relay as claimed in claim 4.

10. The anti-rotation structure further includes a transition piece; One end of the first anti-rotation member and one end of the second anti-rotation member are integrally connected to both ends of the transition member along the third direction, respectively.

10. A relay according to claim 3, wherein the relay is a conductor.

11. the transition piece having a central bore; The relay further includes a resilient assembly, the resilient assembly being connected to the movable contact assembly and the push rod assembly, the resilient assembly providing a contact pressure to the movable contact assembly; The elastic assembly is drilled into the central hole.

11. A relay as claimed in claim 10.

12. The anti-rotation structure further includes a transition piece; one end of the first anti-rotation member and one end of the second anti-rotation member are integrally connected to both ends of the transition member along the third direction, The transition piece is fixedly connected to the movable contact assembly.

4. A relay as claimed in claim 3.

13. The movable contact assembly further includes a second magnetic body, the second magnetic body being fixedly connected to a side of the movable contact facing away from the fixed contact lead-out end; The transition piece is fixedly connected to the second conductive body.

13. A relay as claimed in claim 12.

14. The anti-rotation structure further includes a transition piece; one end of the first anti-rotation member and one end of the second anti-rotation member are integrally connected to both ends of the transition member along the third direction, the push rod assembly further includes a stopper wall, both ends of the stopper wall along the third direction being connected to the first side wall and the second side wall, respectively; The transition piece is fixedly connected to the stop wall.

4. A relay as claimed in claim 3.

15. The relay further includes a first magnetic conductive body, the first magnetic conductive body being provided on a side of the movable contact assembly facing the fixed contact lead-out end, The transition member is provided between the stopper wall and the first magnetic conductive body, and is fixedly connected to the stopper wall and the first magnetic conductive body.

15. A relay as claimed in claim 14.

16. The first anti-rotation member is integrally connected to the first side wall, and the second anti-rotation member is integrally connected to the second side wall.

2. A relay as claimed in claim 1.

17. The push rod assembly further includes a rod portion and a base connected to one axial end of the rod portion, the contact bracket further includes a bottom wall, both ends of the bottom wall along the third direction are integrally connected to one ends of the first side wall and the second side wall, respectively; the contact bracket, the rod portion and the base are connected by an injection molding method, and the base covers the bottom wall and one ends of the first side wall and the second side wall; The push rod assembly further includes a stopper wall, the stopper wall being connected to the other end of the first side wall and the other end of the second side wall, and the stopper wall being provided on a side facing the fixed contact lead-out end of the movable contact assembly.

2. A relay as claimed in claim 1.

18. The push rod assembly further includes a rod portion and a base connected to one axial end of the rod portion, the contact bracket further includes a top wall, both ends of the top wall along the third direction being integrally connected to one ends of the first side wall and the second side wall, respectively; The other ends of the first side wall and the second side wall are engaged with the base.

2. A relay as claimed in claim 1.

19. The relay further includes a first magnetic conductive body, the first magnetic conductive body being provided on a side of the movable contact assembly facing the fixed contact lead-out end, the movable contactor assembly includes a plurality of movable contactors and a plurality of second conductive bodies, the plurality of movable contactors are arranged side by side along the third direction, the plurality of second conductive bodies are fixedly connected in a one-to-one relationship to the sides of the plurality of movable contactors facing away from the fixed contact lead-out ends, and each of the second conductive bodies forms a conductive circuit with the first conductive body; The two second magnetic conductive bodies located on the outermost sides of the plurality of second magnetic conductive bodies each have the first side surface and the second side surface.

2. A relay as claimed in claim 1.

20. During the entire movement of the push rod assembly, the first anti-rotation member always abuts between the first side wall and the first side surface, and the second anti-rotation member always abuts between the second side wall and the second side surface.

2. A relay as claimed in claim 1.

21. The first anti-rotation member and / or the second anti-rotation member are provided with a slot.

21. The relay according to claim 1, 3 to 9, or 12 to 20.

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