Relay

Abstract

The utility model discloses a relay which comprises an insulating cover, a pair of static contacts, a movable assembly and an anti-rotation structure. The pair of static contacts is connected to the insulating cover; the movable assembly comprises a push rod component and a movable contact assembly, and the push rod component is used for driving the movable contact assembly to move so as to be in contact with or separated from the pair of static contacts; the anti-rotation structure is used for limiting rotation of the push rod component around the axis of the push rod component and limiting rotation of the movable contact assembly around the axis of the push rod component.

Description

Technical Field

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

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. A relay is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] A high-voltage DC relay is a type of relay. A high-voltage DC relay in the prior art includes a pair of static contacts, an insulating cover, a moving assembly, and a magnetic circuit. The moving assembly includes a moving contact piece, a push rod component, and an elastic component. The moving contact piece is mounted on the push rod component through the elastic component. The magnetic circuit includes a static iron core, a moving iron core, and a coil. The static iron core is fixedly arranged in the relay, and the moving iron core is connected to the push rod component. When the coil is energized, the static iron core can generate a magnetic attraction and attract the moving iron core to move, thereby driving the push rod component to move together with the moving contact piece to achieve contact closure.

[0004] In the related art, in order to limit the rotation range of the moving component around the axis of the push rod component, a convex rib is usually provided on the inner wall surface of the insulating cover so that a small gap is formed between the side surface of the moving component and the convex rib.

[0005] However, after the relay is opened and closed many times, the side of the moving component is likely to produce contact friction with the convex rib. On the one hand, as the number of frictions increases, the wear of the moving component increases, which in turn causes the matching clearance between the moving component and the convex rib to increase, causing the amplitude of the rotation of the moving component around the axis of the push rod component to increase, affecting the contact position of the moving contact piece and the static contact, resulting in unstable contact resistance. On the other hand, metal particles are likely to be generated after the moving component rubs against the convex rib. After the metal particles fall on the contact surface of the contact, it is easy to cause the contact resistance to increase or even cause the relay to fail to conduct. Utility Model Content

[0006] The embodiment of the present application provides a relay to improve the problem of unstable contact resistance or even failure of conduction of the relay existing in the related art.

[0007] The relay of the embodiment of the present application includes:

[0008] Insulation cover;

[0009] a pair of static contacts connected to the insulating cover;

[0010] A movable assembly, comprising a push rod component and a movable contact component, wherein the push rod component is used to drive the movable contact component to move so as to contact or separate with a pair of the stationary contacts; and

[0011] The anti-rotation structure is used to limit the push rod member from rotating around the axis of the push rod member, and is used to limit the movable contact assembly from rotating around the axis of the push rod member.

[0012] According to some embodiments of the present application, the anti-rotation structure includes:

[0013] A first anti-rotation assembly, used for generating a first anti-rotation force to limit the push rod member from rotating around the axis of the push rod member;

[0014] The second anti-rotation component is used to generate a second anti-rotation force to limit the movable contact component from rotating around the axis of the push rod component.

[0015] According to some embodiments of the present application, the first anti-rotation force is a first anti-rotation elastic force or a first anti-rotation magnetic force, and the second anti-rotation force is a second anti-rotation elastic force or a second anti-rotation magnetic force.

[0016] According to some embodiments of the present application, the first anti-rotation component is connected to or in contact with the push rod member;

[0017] The second anti-rotation component is connected to or in contact with the movable contact component.

[0018] According to some embodiments of the present application, the insulating cover has a cylindrical side wall;

[0019] The first anti-rotation assembly is disposed between the cylindrical side wall and the push rod member.

[0020] According to some embodiments of the present application, the push rod member includes a contact bracket, and the first anti-rotation component and the contact bracket are separate structures.

[0021] According to some embodiments of the present application, the rigidity of the first anti-rotation component is smaller than the rigidity of the contact support.

[0022] According to some embodiments of the present application, during an over-travel process, the first anti-rotation component contacts the cylindrical side wall.

[0023] According to some embodiments of the present application, the first anti-rotation component is an elastic member;

[0024] When the first anti-rotation component contacts the cylindrical side wall, the first anti-rotation component is squeezed by the cylindrical side wall and deformed.

[0025] According to some embodiments of the present application, the push rod member includes a contact bracket, the contact bracket includes two side plates, the two side plates are arranged in a spaced relationship along a third direction, and the movable contact assembly is located between the two side plates; wherein a pair of the static contacts are arranged in a first direction, the movement direction of the movable assembly is defined as a second direction, and the first direction, the second direction, and the third direction are perpendicular to each other;

[0026] The cylindrical side wall comprises two second side walls arranged opposite to each other along the third direction, and the two side plates correspond to the two second side walls respectively;

[0027] The first anti-rotation assembly includes at least two first anti-rotation parts, and at least one of the first anti-rotation parts is disposed between the corresponding second side wall and the side plate.

[0028] According to some embodiments of the present application, the first anti-rotation component is connected to the side plate and is configured to be deformed by being squeezed by the second side wall.

[0029] According to some embodiments of the present application, the number of the first anti-rotation parts is two, and they are respectively attached to the surface of one side of the two side plates facing away from the movable contact assembly;

[0030] The first anti-rotation component is made of a first elastic material.

[0031] According to some embodiments of the present application, the second anti-rotation assembly includes two second anti-rotation parts, which are respectively attached to the surface of one side of the two side plates facing the movable contact assembly, and are used to be squeezed by the movable contact assembly to generate deformation;

[0032] The second anti-rotation component is made of a second elastic material.

[0033] According to some embodiments of the present application, the first anti-rotation component includes a first connecting portion and a first elastic sheet portion, the first connecting portion is connected to the side plate, the first elastic sheet portion is connected to the first connecting portion, and is squeezed by the cylindrical side wall to generate deformation.

[0034] According to some embodiments of the present application, the contact support further includes a fixing plate, the fixing plate is provided with protrusions at both ends along the third direction, each of the side plates has a mounting hole, and the two protrusions are respectively confined to the two mounting holes; the movable contact assembly is located in a space enclosed by the two side plates and the fixing plate;

[0035] Each of the first connecting parts has a first hook, and at least one of the first hooks is hung on the lower edge of the mounting hole and is pressed by the protruding part.

[0036] According to some embodiments of the present application, each of the side panels is connected to at least two of the first anti-rotation parts, and at least two of the first hooks of at least two of the first anti-rotation parts are simultaneously hung on the lower edge of the same mounting hole and are simultaneously pressed by one of the protrusions of the fixing plate.

[0037] According to some embodiments of the present application, the second anti-rotation assembly includes two second anti-rotation parts.

[0038] Two second anti-rotation parts are respectively connected to one side of the two side plates facing the movable contact component; the second anti-rotation part includes a second connecting portion and a second elastic sheet portion, the second connecting portion is connected to the side plate, the second elastic sheet portion is connected to the second connecting portion, and is squeezed by the movable contact component to produce deformation; each second connecting portion has a second hook, the second hook is hung on the lower edge of the mounting hole, and is pressed by the protrusion; the second hook overlaps with the first hook and is pressed by the protrusion.

[0039] According to some embodiments of the present application, the first connecting portion is riveted or welded to the side panel.

[0040] According to some embodiments of the present application, the contact support further includes a fixing plate, the fixing plate is provided with protrusions at both ends along the third direction, each of the side plates has a mounting hole, and the two protrusions are respectively confined to the two mounting holes; the movable contact assembly is located in a space enclosed by the two side plates and the fixing plate;

[0041] The second anti-rotation assembly includes two second anti-rotation parts, each of which is in contact with the movable contact assembly;

[0042] Two second anti-rotation parts are respectively connected to one side of the two side plates facing the movable contact component; the second anti-rotation part includes a second connecting portion and a second elastic sheet portion, the second connecting portion is connected to the side plate, the second elastic sheet portion is connected to the second connecting portion, and is squeezed by the movable contact component to generate deformation; each second connecting portion has a second hook, the second hook is hung on the lower edge of the mounting hole, and is pressed by the protrusion.

[0043] According to some embodiments of the present application, the second side wall has a side wall body and a convex rib, wherein the convex rib is protruding from the inner surface of the side wall body and extends along the second direction for contacting the first anti-rotation component.

[0044] According to some embodiments of the present application, the convex rib has an abutment surface and a guide slope, the abutment surface is used to abut with the first anti-rotation part, the guide slope is connected to the abutment surface, and extends obliquely from the abutment surface toward the direction close to the side wall body and away from the static contact, for guiding the first anti-rotation part to move to the abutment surface.

[0045] According to some embodiments of the present application, when the coil of the relay is de-energized, the first anti-rotation component does not contact the rib.

[0046] According to some embodiments of the present application, the second anti-rotation assembly includes two second anti-rotation parts, each of which is in contact with the movable contact assembly; two second anti-rotation parts are respectively connected to one side of the two side plates facing the movable contact assembly;

[0047] The first anti-rotation component and the second anti-rotation component located on both sides of each side plate in the thickness direction are connected via a bridge portion, and the bridge portion is suspended on the upper edge of the side plate.

[0048] According to some embodiments of the present application, the first anti-rotation component, the bridging portion and the second anti-rotation component are an integral structure.

[0049] According to some embodiments of the present application, two bridge portions are connected between the first anti-rotation component and the second anti-rotation component, and the two bridge portions are arranged at intervals along the first direction and form a first gap;

[0050] The side plate has an insertion portion, and the insertion portion is inserted into the first notch.

[0051] According to some embodiments of the present application, the contact support further includes a fixing plate, the fixing plate is provided with protrusions at both ends along the third direction, each of the side plates has a mounting hole, and the two protrusions are respectively confined to the two mounting holes; the movable contact assembly is located in a space enclosed by the two side plates and the fixing plate;

[0052] Two pressing portions are also provided at both ends of the fixing plate along the third direction, the two pressing portions are spaced apart along the first direction and form a second notch, the protruding portion is located in the second notch, and the inserting portion is inserted into the second notch;

[0053] The two pressing portions at one end of the fixing plate along the third direction respectively press the two bridging portions between the first anti-rotation component and the second anti-rotation component.

[0054] According to some embodiments of the present application, the second anti-rotation component further includes a middle portion, wherein the middle portion is connected between the two second anti-rotation components.

[0055] According to some embodiments of the present application, the push rod component further includes a mounting seat, the contact support is connected to the mounting seat, and the middle portion is connected to the mounting seat.

[0056] According to some embodiments of the present application, the middle portion and the two second anti-rotation components are an integral structure.

[0057] According to some embodiments of the present application, the first anti-rotation component is connected to the second side wall.

[0058] According to some embodiments of the present application, the second anti-rotation assembly includes at least two pairs of first magnets, one of the first magnets in each pair is connected to the movable contact assembly, and the other first magnet is fixedly arranged relative to the insulating cover or fixedly connected to the push rod member; a first magnetic force is formed between the two first magnets in a pair, and the first magnetic force is used to limit the movable contact assembly from rotating around the axis of the push rod member;

[0059] The first anti-rotation component includes at least two pairs of second magnets, one of the second magnets in each pair is connected to the push rod component, and the other second magnet is fixed relative to the insulating cover, and a second magnetic force is formed between the two pairs of second magnets, and the second magnetic force is used to limit the rotation of the push rod component around the axis of the push rod component.

[0060] According to some embodiments of the present application, the first magnetic force is a repulsive force or an attractive force.

[0061] According to some embodiments of the present application, when the first magnetic force is a repulsive force, another of the first magnets is fixedly connected to the inner wall surface of the insulating cover.

[0062] According to some embodiments of the present application, when the first magnetic force is an attractive force, another of the first magnets is fixedly connected to the outer wall surface of the insulating cover.

[0063] According to some embodiments of the present application, the second magnetic force is a repulsive force or an attractive force.

[0064] According to some embodiments of the present application, when the second magnetic force is a repulsive force, another of the second magnets is fixedly connected to the inner wall surface of the insulating cover.

[0065] According to some embodiments of the present application, when the second magnetic force is an attractive force, another second magnet is fixedly connected to the outer wall surface of the insulating cover.

[0066] According to some embodiments of the present application, the orthographic projections of the two first magnets in a pair on a target plane have overlapping first projections, and the orthographic projections of the two second magnets in a pair on the target plane have overlapping second projections;

[0067] The arrangement direction of the pair of static contacts is defined as a first direction, the movement direction of the dynamic component is defined as a second direction, and a third direction is defined, wherein the first direction, the second direction and the third direction are perpendicular to each other;

[0068] The target plane is perpendicular to the third direction.

[0069] According to some embodiments of the present application, when the coil of the relay is powered on or off, the orthographic projections of the two first magnets in a pair on the target plane each have overlapping first projections, and the orthographic projections of the two second magnets in a pair on the target plane each have overlapping second projections.

[0070] According to some embodiments of the present application, the at least two pairs of the first magnets included in the second anti-rotation component are symmetrically arranged about the axis of the push rod component; and / or the at least two pairs of the second magnets included in the first anti-rotation component are symmetrically arranged about the axis of the push rod component.

[0071] According to some embodiments of the present application, the push rod member includes a contact support, the contact support includes two side plates, the two side plates are arranged at an interval, the movable contact assembly is located between the two side plates, and the movable contact assembly has side surfaces facing the two side plates respectively;

[0072] At least one pair of first magnets is provided between the corresponding side plate and the side surface, and the two first magnets in a pair are respectively connected to a side surface of the side plate facing the movable contact component and the side surface.

[0073] According to some embodiments of the present application, the movable contact assembly includes a movable contact piece and a lower magnetic conductor, the movable contact piece is used to contact or separate with a pair of the stationary contacts, and the lower magnetic conductor is fixedly connected to a side of the movable contact piece facing away from the stationary contacts;

[0074] The relay further includes an upper magnetic conductor, which is located on the side of the moving contact piece facing the static contact, and the upper magnetic conductor and the lower magnetic conductor are used to form a magnetic conductive circuit;

[0075] The two outer sides of the lower magnetic conductor are respectively the two side surfaces, and both are connected with the first magnet.

[0076] According to some embodiments of the present application, the insulating cover includes two second side walls arranged at intervals, the arrangement direction of the two second side walls is the same as the arrangement direction of the two side plates, and the two side plates are located between the two second side walls;

[0077] At least one pair of the second magnets is provided between the corresponding second side wall and the side plate, and the two second magnets in a pair are respectively connected to the inner wall surface of the corresponding second side wall and the outer side surface of the side plate.

[0078] According to some embodiments of the present application, the second anti-rotation assembly includes six pairs of the first magnets, a pair of the first magnets is provided between the corresponding side plate and the side surface, two pairs of the first magnets are provided between the corresponding second side wall and the side surface, one of the first magnets in each of the two pairs of the first magnets is connected to the end of the movable contact assembly extending from the contact bracket, and the other first magnet in each pair is connected to the inner wall surface of the second side wall;

[0079] The two first magnets located on the same side surface are symmetrically arranged with the second magnet on the side plate corresponding to the side surface as the center.

[0080] According to some embodiments of the present application, the first magnet and the second magnet are both permanent magnets.

[0081] According to some embodiments of the present application, the insulating cover includes:

[0082] A top wall connected to a pair of static contacts; and

[0083] The cylindrical side wall is connected to the outer periphery of the top wall, and the anti-rotation structure is located in the space surrounded by the cylindrical side wall.

[0084] According to some embodiments of the present application, the cylindrical side wall also includes two first side walls and two second side walls, the two first side walls are arranged at intervals along a first direction, the two second side walls are arranged at intervals along a third direction, and the two first side walls and the two second side walls are connected end to end in sequence to form an annular structure; wherein, the first direction is the arrangement direction of a pair of static contacts, the movement direction of the moving component is defined as a second direction, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0085] According to some embodiments of the present application, the push rod component includes a push rod, a mounting seat and a contact bracket, the mounting seat is connected to one axial end of the push rod, the contact bracket is connected to the mounting seat, and the movable contact assembly is disposed in a space surrounded by the contact bracket;

[0086] The movable assembly further includes a first elastic member, which is located between the mounting seat and the movable contact assembly and is used to provide an elastic force for the movable contact assembly to move toward the stationary contact.

[0087] One embodiment of the above application has at least the following advantages or beneficial effects:

[0088] The relay of the embodiment of the present application includes an anti-rotation structure, which can limit the rotation of the push rod member relative to the insulating cover around the axis of the push rod member, and can also limit the rotation of the movable contact assembly relative to the push rod member around the axis of the push rod member. On the one hand, it can reduce or even avoid the problem of metal particles and / or ceramic powder generated due to frictional contact between the push rod member and / or the movable contact assembly and the insulating cover, and falling on the contact surface of the contact point, resulting in increased contact resistance or even non-conduction, thereby ensuring the reliability of the relay operation; on the other hand, it avoids the influence of the rotation of the movable contact assembly on the contact position with the static contact, ensures the consistency of the contact position between the movable contact assembly and the static contact, and improves the stability of the contact resistance.

[0089] Furthermore, the push rod component includes a contact support, and the first anti-rotation component is correspondingly arranged between the side wall of the insulating cover and the side plate of the contact support, and can limit the contact support relative to the insulating cover to rotate around the axis of the push rod component; the second anti-rotation component is correspondingly arranged between the side plate of the contact support and the movable contact component, and can limit the movable contact component relative to the contact support to rotate around the axis of the push rod component. By reducing the rotation amplitude of the contact support and / or the movable contact component, the contact friction between the contact support and the side wall of the insulating cover and / or the movable contact component is reduced, and the noise generated by the friction between the contact support and the side wall of the insulating cover and / or the movable contact component can also be reduced.

[0090] Furthermore, the first anti-rotation component is connected to the mounting hole of the side panel through a first hook, and the mounting hole is used to limit the protrusion of the fixing plate. On the one hand, the first anti-rotation component can be firmly connected to the side panel and is not prone to accidental falling off; on the other hand, the first anti-rotation component and the side panel can be connected without adding other connecting structures or connecting parts, which is convenient for assembly and saves costs.

[0091] Furthermore, the first hook of the first anti-rotation component and the second hook of the second anti-rotation component are connected to the same mounting hole on the side panel, and the first hook and the second hook are overlapped. On the one hand, the compactness of the structure after the side panel, the first anti-rotation component and the second anti-rotation component are assembled is improved; on the other hand, the existing mounting holes on the side panel are fully utilized without the need for additional connecting structures, which facilitates assembly and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] Figure 1 Shown is a schematic diagram of an exploded view of a relay according to an embodiment of the present application.

[0093] Figure 2 What is shown is a top view schematic diagram of the relay according to the embodiment of the present application, in which the housing, coil frame, coil, U-shaped yoke and arc extinguishing part are omitted.

[0094] Figure 3Shown is the Figure 2 Section view along the AA cutting line.

[0095] Figure 4 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after being assembled in the first embodiment of the present application.

[0096] Figure 5 Shown is a side view schematic diagram of the anti-rotation structure and the moving component after being assembled in the first embodiment of the present application.

[0097] Figure 6 Shown is a schematic diagram of the exploded view of the anti-rotation structure and the moving assembly of the first embodiment of the present application.

[0098] Figure 7 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after being assembled in the second embodiment of the present application.

[0099] Figure 8 Shown is a schematic diagram of an exploded view of the anti-rotation structure and the moving assembly of the second embodiment of the present application.

[0100] Fig. 9 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after being assembled in the third embodiment of the present application.

[0101] Fig.10 Shown is a schematic diagram of an exploded view of the anti-rotation structure and the moving assembly of the third embodiment of the present application.

[0102] Fig.11 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after being assembled in the fourth embodiment of the present application.

[0103] Fig.12 Shown is a schematic diagram of the decomposition of the anti-rotation structure and the moving assembly of the fourth embodiment of the present application.

[0104] Fig.13 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after being assembled in the fifth embodiment of the present application.

[0105] Fig.14 Shown is a schematic diagram of the exploded view of the anti-rotation structure and the moving assembly of the fifth embodiment of the present application.

[0106] Fig.15 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after being assembled in the sixth embodiment of the present application.

[0107] Fig.16 Shown is a schematic diagram of the decomposition of the anti-rotation structure and the moving assembly of the sixth embodiment of the present application.

[0108] Fig.17 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after being assembled in the seventh embodiment of the present application.

[0109] Fig.18 Shown is a schematic diagram of the exploded view of the anti-rotation structure and the moving assembly of the seventh embodiment of the present application.

[0110] Fig.19 Shown is a schematic diagram of the decomposition of the anti-rotation structure and the moving components of the eighth embodiment of the present application.

[0111] Fig. 20 Shown is a schematic diagram of the anti-rotation structure and the moving component after being assembled in the ninth embodiment of the present application.

[0112] Fig.21 Shown is the Figure 2 The cross-sectional view is taken along the BB section line, and the cross-sectional view shows the anti-rotation structure, the moving assembly and the insulating cover of the tenth embodiment of the present application, wherein the first anti-rotation component is not in contact with the convex rib.

[0113] Fig. 22 Shown is the Figure 2 The cross-sectional view is taken along the BB section line, and the cross-sectional view shows the anti-rotation structure, the moving assembly and the insulating cover of the tenth embodiment of the present application, wherein the first anti-rotation component is in contact with the convex rib.

[0114] Fig.23 Shown is the Figure 2 The cross-sectional view is taken along the BB section line, and the cross-sectional view shows the anti-rotation structure, moving assembly and insulating cover of the eleventh embodiment of the present application.

[0115] Fig.24 Shown is the Figure 2 The cross-sectional view is taken along the BB section line, and the cross-sectional view shows the anti-rotation structure, moving assembly and insulating cover of the twelfth embodiment of the present application.

[0116] Fig.25 Shown is a schematic diagram of the decomposition of the anti-rotation structure, moving components, and insulating cover of the twelfth embodiment of the present application.

[0117] Fig.26 Shown is a three-dimensional schematic diagram of the anti-rotation structure and the moving component after assembly according to the thirteenth embodiment of the present application.

[0118] Fig. 27 Shown is a schematic diagram of the decomposition of the anti-rotation structure, moving components, and insulating cover of the thirteenth embodiment of the present application. DETAILED DESCRIPTION

[0119] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0120] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, 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 may optionally include steps or units that are not listed, or may optionally include other steps or components that are inherent to these processes, methods, products, or devices.

[0121] like Figures 1 to 3 As shown, the relay of the embodiment of the present application includes a housing 10, an insulating cover 21, a yoke iron plate 25, a pair of stationary contacts 22, an arc extinguishing part 26, a moving component 30 and a magnetic circuit part 40. The insulating cover 21, the yoke iron plate 25, a pair of stationary contacts 22, the arc extinguishing part 26, the moving component 30 and the magnetic circuit part 40 are arranged in the housing 10.

[0122] Among them, the housing 10 includes an upper shell 11 and a bottom shell 12, which are connected to form a chamber for accommodating an insulating cover 21, a yoke iron plate 25, a pair of static contacts 22, an arc extinguishing part 26, a moving component 30 and a magnetic circuit part 40.

[0123] like Figure 3 As shown, the insulating cover 21 has an inner cavity 212, a pair of static contacts 22 are installed on the top of the insulating cover 21, at least part of each static contact 22 extends into the inner cavity 212 of the insulating cover 21, and a static contact point is also provided at the bottom of each static contact 22, and the static contact point can be integrally or separately provided at the bottom of the static contact 22. One static contact 22 serves as a terminal for current to flow in, and the other static contact 22 serves as a terminal for current to flow out.

[0124] In the embodiment of the present application, two openings 211 are formed on the top of the insulating cover 21, and each opening 211 is connected to the inner cavity 212. A pair of static contacts 22 are respectively disposed in the two openings 211. Moreover, each static contact 22 and the insulating cover 21 can be connected by welding, but the present invention is not limited thereto.

[0125] It is understandable that the insulating cover 21 may be made of ceramic material, that is, the insulating cover 21 is a ceramic cover, but it is not limited thereto. For example, in other embodiments, the insulating cover 21 may also be made of plastic material.

[0126] In an embodiment of the present application, the insulating cover 21 is made of ceramic material, and the insulating cover 21 is connected to the yoke iron plate 25 through a frame sheet 24. The frame sheet 24 can be a metal piece with an annular structure, such as an iron-nickel alloy. One end of the frame sheet 24 is connected to the opening edge of the insulating cover 21, for example, by laser welding, brazing, resistance welding, gluing, etc. The other end of the frame sheet 24 is connected to the yoke iron plate 25, which can also be done by laser welding, brazing, resistance welding, gluing, etc. A frame sheet 24 is arranged between the insulating cover 21 and the yoke iron plate 25 to facilitate the connection between the insulating cover 21 and the yoke iron plate 25.

[0127] The insulating cover 21 includes a top wall 213 and a cylindrical side wall 214 , one axial end of the cylindrical side wall 214 is connected to the outer periphery of the top wall 213 , and the other axial end of the cylindrical side wall 214 is connected to the frame 24 . The top wall 213 and the cylindrical side wall 214 together form an inner cavity 212 .

[0128] The top wall 213 is provided with two openings 211 , and a pair of static contacts 22 are respectively disposed in the two openings 211 . Each static contact 22 and the top wall 213 may be connected by welding, but the present invention is not limited thereto.

[0129] Please continue reading Figure 3 The movable assembly 30 includes a movable contact assembly 30a, a first elastic member 32 and a push rod member 33. The movable contact assembly 30a is movable between a first position contacting with a pair of stationary contacts 22 and a second position away from the pair of stationary contacts 22, and the push rod member 33 is used to drive the movable contact assembly 30a to move.

[0130] For the convenience of explanation, the arrangement direction of the pair of stationary contacts 22 is defined as the first direction D1, and the movement direction of the moving assembly 30 is defined as the second direction D2, wherein the first direction D1 is perpendicular to the second direction D2. The direction perpendicular to both the first direction D1 and the second direction D2 is defined as the third direction D3.

[0131] The movable contact assembly 30 a is disposed in the insulating cover 21 and includes a movable contact piece 31 . Two ends of the movable contact piece 31 along the first direction D1 are respectively used to contact or separate from the bottom of a pair of stationary contacts 22 .

[0132] The push rod member 33 is movably disposed in the first through hole 251 of the yoke plate 25 , and part of the push rod member 33 extends out of the side surface of the yoke plate 25 facing the stationary contact 22 , and part of the push rod member 33 extends out of the side surface of the yoke plate 25 facing away from the stationary contact 22 .

[0133] The movable contact piece 31 is movably mounted on the portion of the push rod member 33 extending from the side surface of the yoke iron plate 25 toward the stationary contact 22. The first elastic member 32 is connected to the push rod member 33 and the movable contact piece 31, and is used to apply an elastic force toward the stationary contact 22 to the movable contact piece 31 to provide contact pressure.

[0134] As an example, the first elastic member 32 is a spring or a leaf spring, but is not limited thereto. In addition, the number of the first elastic member 32 may be one or more. When the number of the first elastic member 32 is multiple, the multiple first elastic members 32 may all be springs, or all be leaf springs, or may be a combination of leaf springs and springs, and the present application does not make any special limitation on this.

[0135] The side surface of the yoke iron plate 25 facing away from the static contact 22 is also covered with a metal cover 27, and the metal cover 27 covers the first through hole 251 of the yoke iron plate 25. The push rod member 33 extending from the side surface of the yoke iron plate 25 facing away from the static contact 22 is inserted into the metal cover 27.

[0136] Please continue reading Figure 1 and Figure 3 The magnetic circuit part 40 includes a moving iron core 41, a stationary iron core 42, a coil frame 43 and a coil 44. The coil frame 43 is in a hollow cylindrical shape and is made of insulating material. The coil frame 43 is located on the side of the yoke iron plate 25 facing away from the stationary contact 22 and surrounds the outer periphery of the metal cover 27. The coil 44 is wound around the outer periphery of the coil frame 43.

[0137] The static iron core 42 is fixedly disposed in the metal cover 27, and part of the static iron core 42 is inserted into the first through hole 251. The static iron core 42 has a second through hole 421, and the second through hole 421 corresponds to the position of the first through hole 251, so that the push rod member 33 can be movably penetrated in the first through hole 251 and the second through hole 421. The moving iron core 41 is movably disposed in the metal cover 27, and is arranged relative to the static iron core 42 in the second direction D2. The moving iron core 41 is connected to the push rod member 33, and is used to be attracted by the static iron core 42 when the coil 44 is energized. The moving iron core 41 and the push rod member 33 can be connected by screwing, riveting, welding or other methods.

[0138] like Figure 3 As shown, the magnetic circuit portion 40 further includes a second elastic member 46, which is located in the metal cover 27 and disposed between the static iron core 42 and the moving iron core 41, and is used to reset the moving iron core 41 when the coil 44 is de-energized.

[0139] In one embodiment, the second elastic member 46 is a spring and is sleeved on the outer circumference of the push rod member 33 , but the present invention is not limited thereto.

[0140] It should be noted that when the coil 44 is energized, the stationary iron core 42 attracts the moving iron core 41 to move upward, and the moving iron core 41 can drive the push rod member 33 to move upward. When the moving contact piece 31 contacts the stationary contact 22, the moving contact piece 31 is stopped by the stationary contact 22, and the push rod member 33 will continue to move upward until the overtravel is completed.

[0141] During the overtravel process, the first elastic member 32 is squeezed by the push rod member 33 and can provide elastic force to the movable contact piece 31 to provide contact point pressure.

[0142] like Figure 1 and Figure 3 As shown, the magnetic circuit part 40 also includes a U-shaped yoke 47. The U-shaped yoke 47 includes a bottom yoke plate 471 and two side yoke plates 472, the two side yoke plates 472 are respectively connected to the two ends of the bottom yoke plate 471 along the first direction D1, and the two side yoke plates 472 are arranged opposite to each other along the first direction D1. The bottom yoke plate 471 is arranged on the side of the coil frame 43 facing away from the static contact 22, and the ends of the two side yoke plates 472 away from the bottom yoke plate 471 are respectively connected to the two ends of the yoke plate 25 along the first direction D1. The coil 44, the coil frame 43, the metal cover 27 and the moving iron core 41 are accommodated in the space surrounded by the yoke plate 25 and the bottom yoke plate 471 and the two side yoke plates 472 of the U-shaped yoke 47.

[0143] like Figure 1 As shown, the arc extinguishing part 26 includes a permanent magnet 262, and the permanent magnet 262 is arranged on the outer side of the insulating cover 21. By arranging the permanent magnet 262 on the outer periphery of the insulating cover 21, a magnetic field can be formed around the stationary contact 22 and the moving contact piece 31. Therefore, through the effect of the magnetic field, the arc generated between the stationary contact 22 and the moving contact 31 will be stretched in a direction away from each other, thereby achieving arc extinguishing.

[0144] The arc extinguishing part 26 further includes a yoke clamp 261, and a permanent magnet 262 is disposed between a side surface of the yoke clamp 261 facing the insulating cover 21 and an outer peripheral surface of the insulating cover 21. By designing that the yoke clamp 261 surrounds the permanent magnet 262, it is possible to prevent the magnetic field generated by the permanent magnet 262 from spreading outward and affecting the arc extinguishing effect.

[0145] In one embodiment, the yoke clip 261 is made of a soft magnetic material, which may include but is not limited to iron, cobalt, nickel, and alloys thereof.

[0146] It is understandable that the number of the yoke clips 261 can be one or two. When the number of the yoke clips 261 is one, the yoke clip 261 forms an annular structure surrounding the outer periphery of the insulating cover 21. When the number of the yoke clips 261 is two, each yoke clip 261 can be U-shaped and arranged opposite to each other along the first direction D1, and the two yoke clips 261 respectively surround the two ends of the insulating cover 21 along the first direction D1.

[0147] Please return to Figure 2The cylindrical side wall 214 includes two first side walls 2141 and two second side walls 2142. The two first side walls 2141 are arranged opposite to each other along the first direction D1, and the two second side walls 2142 are arranged opposite to each other along the third direction D3. The two first side walls 2141 and the two second side walls 2142 are connected end to end in sequence to form an annular structure. The two second side walls 2142 are located around the first position and the second position.

[0148] It is understandable that the present application does not specifically limit the shape of the cylindrical side wall 214 . For example, the annular structure formed by the cylindrical side wall 214 may be rectangular, circular, elliptical, etc.

[0149] like Figures 4 to 6 As shown, the push rod member 33 includes a push rod 333, a mounting seat 332 and a contact bracket 331. The mounting seat 332 is connected to one axial end of the push rod 333, and the contact bracket 331 is connected to the mounting seat 332. The push rod 333 is movably arranged in the first through hole 251 along the second direction D2. At least part of the movable contact assembly 30a is arranged in the space surrounded by the contact bracket 331, and the first elastic member 32 is arranged between the movable contact assembly 30a and the mounting seat 332.

[0150] like Figure 4 As shown, the contact support 331 includes two side plates 3311, one end of the two side plates 3311 along the second direction D2 is connected to the mounting seat 332, and the two side plates 3311 are arranged at intervals along the third direction D3, and the movable contact piece 31 and the first elastic member 32 are located between the two side plates 3311. Each side plate 3311 has an inner side surface 3311a and an outer side surface 3311b arranged opposite to each other along the third direction D3, the inner side surface 3311a of each side plate 3311 faces the movable contact assembly 30a, and the outer side surface 3311b and the inner side surface 3311a are arranged opposite to each other in the thickness direction (third direction D3) of the side plate 3311. The two inner side surfaces 3311a are arranged face to face along the third direction D3, and the two outer side surfaces 3311b are arranged opposite to each other along the third direction D3. In the third direction D3, the two side plates 3311 are located between the two second side walls 2142, and are arranged face to face with the two second side walls 2142 respectively.

[0151] The mounting seat 332 may be made of plastic material, and the two side panels 3311 , the push rod 333 and the mounting seat 332 may be integrally formed by injection molding, but the present invention is not limited thereto.

[0152] Optionally, a connecting plate 3314 ( Fig. 20), the two ends of the connecting plate 3314 along the third direction D3 are respectively connected to one end of the two side plates 3311 along the second direction D2, and the mounting seat 332 is covered on the outer periphery of the connecting plate 3314 and the connection position between the connecting plate 3314 and the side plates 3311. In the embodiment of the present application, the two side plates 3311 and the connecting plate 3314 form a U shape.

[0153] The contact support 331 further includes a fixing plate 3312, the two ends of which along the third direction D3 are respectively connected to one end of the two side plates 3311 away from the connecting plate 3314. The movable contact assembly 30a and the first elastic member 32 are located in a space surrounded by the fixing plate 3312, the two side plates 3311 and the mounting seat 332.

[0154] In one embodiment, the fixing plate 3312 is provided with protrusions 3312a at both ends along the third direction D3, each side plate 3311 has a mounting hole 3313 penetrating the inner side surface 3311a and the outer side surface 3311b, and the two protrusions 3312a are respectively confined in the two mounting holes 3313.

[0155] Of course, in other embodiments, the connecting plate 3314 and the two side plates 331 of the contact bracket 331 can also form an inverted U shape. For example, the two ends of the connecting plate 3314 along the third direction D3 are respectively connected to the ends of the two side plates 3311 away from the mounting seat 332, and the two side plates 3311 and the connecting plate 3314 form an inverted U shape. The fixing plate 3312 is connected to the mounting seat 332. For example, the push rod 333, the fixing plate 3312 and the mounting seat 332 are integrally formed by injection molding. The two ends of the fixing plate 3312 along the third direction D3 extend out of the outer surface of the mounting seat 332, so that the two ends of the fixing plate 3312 are respectively connected to the ends of the two side plates 3311 away from the connecting plate 3314.

[0156] Please continue reading Figures 4 to 6 The moving assembly 30 further includes an upper magnetic conductor 34a, which is fixedly connected to a surface of the fixing plate 3314 facing the mounting seat 332, such as by riveting, but not limited thereto.

[0157] The movable contact assembly 30a further includes a lower magnet 35a, which is fixedly connected to the side of the movable contact piece 31 facing away from the stationary contact 22. When both ends of the movable contact piece 31 are in contact with a pair of stationary contacts 22, the lower magnet 35a moving together with the movable contact piece 31 approaches or contacts the upper magnet 34a, thereby forming a magnetic conductive loop around the movable contact piece 31 between the upper magnet 34a and the lower magnet 35a. When a short-circuit current passes through the movable contact piece 31, an attractive force is generated between the upper magnet 34a and the lower magnet 35a in the direction of contact pressure, and the attractive force can resist the electromotive repulsion between the movable contact piece 31 and the stationary contact 22 due to the short-circuit current, ensuring that the movable contact piece 31 and the stationary contact 22 do not bounce apart, thereby playing an anti-short-circuit role.

[0158] The upper magnetic conductor 34a may include one or more first magnetic conductors 34, and the lower magnetic conductor 35 may include one or more second magnetic conductors 35. The number of the first magnetic conductors 34 and the number of the second magnetic conductors 35 may be the same or different.

[0159] For example, in an embodiment of the present application, the number of the first magnetic conductors 34 and the number of the second magnetic conductors 35 are both two; in another embodiment, the number of the first magnetic conductors 34 can be one, the number of the second magnetic conductors 35 can be multiple, and a magnetic circuit can be formed between each second magnetic conductor 35 and the first magnetic conductor 34.

[0160] It is understandable that the first magnetic conductor 34 and the second magnetic conductor 35 can both be straight, U, L or E shaped, and can be made of magnetic materials such as iron, cobalt, nickel, and alloys thereof.

[0161] In another embodiment, the first magnetic conductor 34 can also be fixed relative to the insulating cover 21, for example, the first magnetic conductor 34 is connected to the insulating cover 21, or connected to the yoke iron plate 25 through a fixed bracket. In this way, the suction force to resist short circuit is transferred to the stationary part, so there is no need for excessive coil holding force, thereby reducing the power consumption of the coil of the relay and the volume of the relay, and improving the short circuit resistance.

[0162] In another embodiment, the distance between the first magnetizer 34 and the second magnetizer 35 can be designed to be variable. Specifically, the distance between the first magnetizer 34 and the second magnetizer 35 can be adjusted according to the current value, thereby changing the suction force generated between the first magnetizer 34 and the second magnetizer 35, while meeting the requirements of short circuit resistance and overload disconnection.

[0163] like Figures 4 to 6As shown, the relay of the embodiment of the present application further includes an anti-rotation structure 60, and the cylindrical side wall 214 surrounds the anti-rotation structure 60. The anti-rotation structure 60 is used to limit the push rod member 33 from rotating around the axis of the push rod member 33, and to limit the movable contact assembly 30a from rotating around the axis of the push rod member 33.

[0164] The relay of the embodiment of the present application includes an anti-rotation structure 60. The anti-rotation structure 60 can not only limit the rotation of the push rod member 33 relative to the insulating cover 21 around the axis of the push rod member 33, but also limit the rotation of the movable contact assembly 30a relative to the push rod member 33 around the axis of the push rod member 33. On the one hand, it can reduce or even avoid the problem that metal particles and / or ceramic powder are generated and fall on the contact surface of the contact due to frictional contact between the push rod member 33 and / or the movable contact assembly 30a and the insulating cover 21, resulting in increased contact resistance or even non-conduction, thereby ensuring the reliability of the relay operation; on the other hand, it avoids the influence of the rotation of the movable contact assembly 30a on the contact position with the static contact 22, ensures the consistency of the contact position of the movable contact assembly 30a and the static contact 22, and improves the stability of the contact resistance.

[0165] like Figures 4 to 6 As shown, the anti-rotation structure 60 includes a first anti-rotation component 610 and a second anti-rotation component 620. The first anti-rotation component 610 is used to generate a first anti-rotation force to limit the push rod member 33 from rotating around the axis of the push rod member 33. The second anti-rotation component 620 is used to generate a second anti-rotation force to limit the movable contact component 30a from rotating around the axis of the push rod member 33.

[0166] In one embodiment, the first anti-rotation force is a first anti-rotation elastic force or a first anti-rotation magnetic force, and the second anti-rotation force is a second anti-rotation elastic force or a second anti-rotation magnetic force. Of course, in other embodiments, the first anti-rotation force and the second anti-rotation force can also be other forces that can play an anti-rotation role in addition to elastic force and magnetic force.

[0167] The first anti-rotation component 610 is connected to the push rod member 33 and contacts the inner wall surface of the insulating cover 21, and is used to generate a first anti-rotation elastic force to limit the push rod member 33 from rotating around the axis of the push rod member 33; the second anti-rotation component 620 is connected to the push rod member 33 and contacts the movable contact component 30a, and is used to generate a second anti-rotation elastic force to limit the movable contact component 30a from rotating around the axis of the push rod member 33. It can be understood that the first anti-rotation elastic force refers to the rebound force after the first anti-rotation component 610 is compressed and deformed; the second anti-rotation elastic force refers to the rebound force after the second anti-rotation component 620 is compressed and deformed.

[0168] The first anti-rotation assembly 610 includes at least two first anti-rotation parts 611, each of which contacts the inner wall surface of the second side wall 2142 of the insulating cover 21, and at least one first anti-rotation part 611 is connected to the side where the outer side surface 3311b of each side plate 3311 is located.

[0169] In the embodiment of the present application, the first anti-rotation assembly 610 includes two first anti-rotation parts 611 , which are respectively connected to the two side plates 3311 and are respectively located on one side where the outer side surfaces 3311 b of the two side plates 3311 are located.

[0170] As an example, the first anti-rotation member 611 is disposed between the corresponding side plate 3311 and the second side wall 2142. The first anti-rotation member 611 is connected to the side plate 3311, and during the overtravel process, the first anti-rotation member 611 contacts the second side wall 2142. It can be understood that after the first anti-rotation member 611 contacts the second side wall 2142, the first anti-rotation member 611 can effectively limit the contact bracket 331 from rotating.

[0171] In addition, the side plate 3311 of the contact support 331 is located in the middle and upper position of the moving assembly 30, and the first anti-rotation member 611 is connected to the side plate 3311, which can further ensure the balance of the contact support 331 along the third direction D3. At the same time, the first anti-rotation member 6110 is connected to the side plate 3311, so that the side plate 3311 can absorb the vibration transmitted by the first anti-rotation member 611, thereby avoiding affecting the stability of the position of the moving contact piece 31.

[0172] It should be noted that, during the overtravel process, the "contact" between the first anti-rotation member 611 and the second side wall 2142 should be understood as active contact, that is, when the moving assembly 30 is not deflected and in a normal motion state, the first anti-rotation member 611 is in contact with the second side wall 2142, rather than when the moving assembly 30 is deflected, the first anti-rotation member 611 contacts the second side wall 2142. The first anti-rotation member 611 of the present application and the second side wall 2142 adopt an active contact design, which can effectively inhibit the deflection of the moving assembly 30 and reduce the amplitude of the deflection of the moving assembly 30.

[0173] Among them, the contact between the first anti-rotation component 611 and the second side wall 2142 can include two situations: the first is that the first anti-rotation component 611 is always in contact with the second side wall 2142 during the entire movement of the moving component 30; the second is that when the coil of the relay is powered off, the first anti-rotation component 611 is not in contact with the second side wall 2142, and when the coil of the relay is powered on, the moving component 30 moves a certain distance before the first anti-rotation component 611 contacts the second side wall 2142 and maintains contact until the moving iron core 41 contacts the static iron core 42.

[0174] The first anti-rotation member 611 is an elastic member, and when the first anti-rotation member 611 contacts the second side wall 2142, the first anti-rotation member 611 is squeezed by the second side wall 2142 and deforms. After the first anti-rotation member 611 is deformed, it can generate a rebound force to further limit the deflection of the contact bracket 331.

[0175] As an example, the rigidity of the first anti-rotation member 611 is smaller than the rigidity of the contact bracket 331. The first anti-rotation member 611 and the contact bracket 331 are split structures, which facilitates the differentiation of the rigidity of the first anti-rotation member 611 and the contact bracket 331. The first anti-rotation member 611 and the contact bracket 331 are split structures, so that the rigidity of the first anti-rotation member 611 and the contact bracket 331 can be designed to be different, for example, the rigidity of the first anti-rotation member 611 is smaller, while the rigidity of the contact bracket 331 is larger, so that the contact bracket 331 with larger rigidity is not easy to deform, which can ensure that the position of the moving contact piece 31 is not offset by the deformation of the contact bracket 331, thereby ensuring the consistency and stability of the contact between the moving contact piece 31 and the static contact 22, and does not affect the effective operation of the relay; the first anti-rotation member 611 with smaller rigidity has better resilience, and on the basis of providing anti-rotation force, it can also avoid scratching the inner wall surface of the cylindrical side wall 214.

[0176] For example, the contact support 331 is made of a metal material, and the first anti-rotation member 611 is made of a non-metallic elastic material. In one embodiment, the first anti-rotation member 611 can be made of rubber or plastic, wherein the plastic can be a wear-resistant flexible plastic. The first anti-rotation member 611 is made of an elastic material, which can reduce the contact friction between the first anti-rotation member 611 and the second side wall 2142 and the noise generated by the friction between the first anti-rotation member 611 and the inner wall surface of the second side wall 2142 during the reciprocating motion of the moving component 30.

[0177] It is understandable that the rigidity of the first anti-rotation member 611 is smaller than that of the contact bracket 331 , which can take into account the stable supporting function of the contact bracket 331 and the function of the first anti-rotation member 611 being squeezed and deformed to provide resilience.

[0178] It should be noted that designing the stiffness of the first anti-rotation component 611 to be smaller than the stiffness of the contact bracket 331 is not limited to setting the materials of the first anti-rotation component 611 and the contact bracket 331 to be different. For example, in other embodiments, it can also be designed that: under the premise of the same material, the thickness of the first anti-rotation component 611 is smaller than the thickness of the side plate 3311 of the contact bracket 331, or the first anti-rotation component 611 and the contact bracket 331 have different shapes.

[0179] The first anti-rotation member 611 includes a first connection portion 6111 and a first elastic sheet portion 6112. The first connection portion 6111 is connected to the side plate 3311. The first elastic sheet portion 6112 is connected to the first connection portion 6111 and is deformed by being squeezed by the inner wall surface of the insulating cover 21. The first elastic sheet portion 6112 is used to provide elastic force. Each first connection portion 6111 has a first hook 6113. At least one first hook 6113 is hung on the lower edge of the mounting hole 3313 and is pressed by the protrusion 3312a.

[0180] In the embodiment of the present application, the first anti-rotation component 611 is connected to the mounting hole 3313 of the side panel 3311 through the first hook 6113. The mounting hole 3313 is used to limit the protrusion 3312a of the fixing plate 3312. On the one hand, the first anti-rotation component 611 can be firmly connected to the side panel 3311 and is not prone to accidental falling off. On the other hand, the first anti-rotation component 611 and the side panel 3311 can be connected without adding other connecting structures or connecting components, which is convenient for assembly and saves costs.

[0181] In one embodiment, a plurality of first elastic pieces 6112 are connected to one side of the first connection portion 6111 along the second direction D2 , and the plurality of first elastic pieces 6112 of the first anti-rotation component 611 are arranged at intervals along the first direction D1 .

[0182] Of course, in other embodiments, the first anti-rotation component 611 may also have a first elastic sheet portion 6112 .

[0183] As an example, the first elastic sheet portion 6112 has an arc surface in contact with the second side wall 2142. The design of the arc surface can make the first elastic sheet portion 6112 and the second side wall 2142 in line contact, which not only plays an anti-rotation role, but also reduces the friction resistance between the first elastic sheet portion 6112 and the second side wall 2142 when the moving assembly 30 reciprocates along the second direction D2.

[0184] Continue reading Figures 4 to 6 The second anti-rotation assembly 620 includes two second anti-rotation parts 621, each of which contacts the movable contact assembly 30a. Two second anti-rotation parts 621 are connected to the inner side surfaces 3311a of the two side plates 3311, respectively.

[0185] Each second anti-rotation member 621 includes a second connection portion 6211 and a second elastic sheet portion 6212. The second connection portion 6211 is connected to the side plate 3311. The second elastic sheet portion 6212 is connected to the second connection portion 6211 and is squeezed by the movable contact assembly 30a to generate deformation. The second elastic sheet portion 6212 is used to provide elastic force. Each second connection portion 6211 has a second hook 6213. The second hook 6213 is hung on the lower edge of the mounting hole 3313 and is pressed by the protrusion 3312a. The second hook 6213 overlaps the first hook 6113.

[0186] That is to say, the first hook 6113 of the first anti-rotation component 611 and the second hook 6213 of the second anti-rotation component 621 are connected to the same mounting hole 3313 on the side panel 3311, and the first hook 6113 and the second hook 6213 are overlapped. On the one hand, the compactness of the assembled structure of the side panel 3311, the first anti-rotation component 611 and the second anti-rotation component 621 is improved; on the other hand, the existing mounting hole 3313 on the side panel 3311 is fully utilized without the need for additional connecting structure, which is convenient for assembly and saves costs.

[0187] The second elastic sheet portion 6212 has an arc surface in contact with the movable contact component 30a. The design of the arc surface allows the second elastic sheet portion 6212 and the movable contact component 30a to be in line contact, which not only plays an anti-rotation role, but also reduces the friction resistance between the second elastic sheet portion 6212 and the movable contact component 30a when the movable component 30 reciprocates along the second direction D2.

[0188] The second anti-rotation assembly 620 further includes a middle portion 622, which is connected to the mounting seat 332 and is connected between the two second anti-rotation members 621. The middle portion 622 can improve the firmness of the connection between the two second anti-rotation members 621. The middle portion 622 has a central hole 6221, and the first elastic member 32 is inserted into the central hole 6221.

[0189] In one embodiment, the middle portion 622 and the two second anti-rotation components 621 are an integral structure.

[0190] Of course, in other embodiments, the second anti-rotation component 621 and the side plate 3311 may also be connected by riveting, welding, or the like.

[0191] like Figure 7 and Figure 8 As shown, the similarities between the second embodiment of the present application and the first embodiment are not repeated here, and the difference lies in that the first connecting portion 6111 is riveted to the side plate 3311 .

[0192] Specifically, one of the first connection portion 6111 and the side plate 3311 is provided with a rivet column, and the other is provided with a rivet hole, and the rivet column is riveted into the rivet hole.

[0193] For example, a plurality of rivet columns are protruded from the outer side surface 3311 b of the side plate 3311 , and the first connecting portion 6111 has a plurality of rivet holes. The number of the rivet columns is the same as the number of the rivet holes, and the plurality of rivet columns are correspondingly riveted into the plurality of rivet holes.

[0194] Of course, in another embodiment, the riveting column can be protruded from a side surface of the first connecting portion 6111 facing the side plate 3311 , and the riveting hole is provided on the side plate 3311 .

[0195] It is understandable that the second anti-rotation component 621 and the side plate 3311 may also be connected by riveting.

[0196] like Fig. 9 and Fig.10 As shown, the similarities between the third embodiment of the present application and the first embodiment are not repeated here, and the differences are as follows:

[0197] The first connection portion 6111 is welded to the side plate 3311 .

[0198] It is understandable that the second anti-rotation component 621 and the side plate 3311 may also be connected by welding.

[0199] like Fig.11 and Fig.12 As shown, the similarities between the fourth embodiment of the present application and the first embodiment are not repeated here, and the difference lies in that:

[0200] Each side plate 3311 is connected to at least two first anti-rotation parts 611, and at least two first hooks 6113 of at least two first anti-rotation parts 611 and the second hook 6213 of the second anti-rotation part 621 are simultaneously suspended on the lower edge of the same mounting hole 3313, and are simultaneously pressed by a protrusion 3312a of the fixing plate 3312.

[0201] As an example, each side plate 3311 is connected to two first anti-rotation members 611, and the two first hooks 6113 of the two first anti-rotation members 611 are located in the same mounting hole 3313, and the two first hooks 6113 are arranged along the first direction D1. The second hook 6213 of the second anti-rotation member 621 is also located in the mounting hole 3313 and covers the two first hooks 6113 at the same time.

[0202] Of course, in other embodiments, the two first hooks 6113 may also cover the second hook 6213 at the same time.

[0203] like Fig.13 and Fig.14 As shown, the similarities between the fifth embodiment of the present application and the fourth embodiment are not repeated here, and the difference lies in that the first connecting portion 6111 of the first anti-rotation component 611 is riveted to the side plate 3311 .

[0204] Specifically, one of the first connection portion 6111 and the side plate 3311 is provided with a rivet column, and the other is provided with a rivet hole, and the rivet column is riveted into the rivet hole.

[0205] For example, a plurality of rivet columns are protruded from the outer side surface 3311 b of the side plate 3311 , and the first connecting portion 6111 has a plurality of rivet holes. The number of the rivet columns is the same as the number of the rivet holes, and the plurality of rivet columns are correspondingly riveted into the plurality of rivet holes.

[0206] like Fig.15 and Fig.16 As shown, the similarities between the sixth embodiment of the present application and the fourth embodiment are not repeated here, and the difference lies in that:

[0207] The first connection portion 6111 is welded to the side plate 3311 .

[0208] like Fig.17 and Fig.18 As shown, the same points as the first embodiment of the seventh embodiment of the present application will not be repeated, and the difference lies in that:

[0209] The first anti-rotation component 611 located on the outer side 3311b of each side plate 3311 is connected to the second anti-rotation component 621 located on the inner side 3311a of the side plate 3311 via a bridge portion 612 , and the bridge portion 612 is suspended on the upper edge of the side plate 3311 .

[0210] As an example, two bridging portions 612 are connected between the first anti-rotation component 611 and the second anti-rotation component 621 . The two bridging portions 612 are arranged at intervals along the first direction D1 and form a first notch 6121 . The side plate 3311 has an insertion portion 3311c , which is inserted into the first notch 6121 .

[0211] Two pressing portions 3312b are further provided at both ends of the fixed plate 3312 along the third direction D3. The two pressing portions 3312b are arranged at intervals along the first direction D1 and form a second notch 3312c. The protruding portion 3312a is located in the second notch 3312c, and the inserting portion 3311c is passed through the second notch 3312c. The two pressing portions 3312b at one end of the fixed plate 3312 along the third direction D3 respectively press the two bridging portions 612 between the first anti-rotation component 611 and the second anti-rotation component 621.

[0212] In the embodiment of the present application, the insertion portion 3311c is inserted into the first notch 6121 and the second notch 3312c, and the pressing portion 3312b presses the bridging portion 612, thereby improving the firmness of the connection between the anti-rotation structure 60 and the side plate 3311 and the fixing plate 3312.

[0213] In one embodiment, the first anti-rotation component 611 , the bridging portion 612 , and the second anti-rotation component 621 are an integrated structure.

[0214] In the embodiment of the present application, no middle portion 622 is disposed between the two second anti-rotation components 621 .

[0215] like Fig.19 As shown, the similarities between the eighth embodiment of the present application and the seventh embodiment are not repeated here, and the difference lies in that:

[0216] An intermediate portion 622 is further provided between the two second anti-rotation members 621, and the intermediate portion 622 is connected to the mounting seat 332. The intermediate portion 622 can improve the firmness of the connection between the two second anti-rotation members 621. The intermediate portion 622 has a central hole 6221, and the first elastic member 32 is inserted into the central hole 6221.

[0217] In one embodiment, the middle portion 622 , the first anti-rotation component 611 , the second anti-rotation component 621 and the bridge portion 612 are an integrated structure.

[0218] like Fig. 20 As shown, the same points as the above-mentioned embodiments in the ninth embodiment of the present application will not be repeated, and the difference lies in that:

[0219] At least one first anti-rotation component 611 is disposed on the side where the outer side surface 3311b of each side plate 3311 is located, and at least one second anti-rotation component 621 is disposed on the inner side surface 3311a of each side plate 3311. Fig. 20 As shown, the number of the first anti-rotation component 611 and the second anti-rotation component 621 are both two, and both are in the shape of a flat plate. The two first anti-rotation components 611 are respectively attached to the two outer side surfaces 3311b, and the two second anti-rotation components 621 are respectively attached to the two inner side surfaces 3311a. The first anti-rotation component 611, the second anti-rotation component 621 and the side plate 3311 can be connected by bonding, clamping, or integral injection molding, but the present invention is not limited thereto.

[0220] Of course, the first anti-rotation component 611 and the second anti-rotation component 621 are not limited to being in a flat plate shape. For example, in other embodiments, the first anti-rotation component 611 and the second anti-rotation component 621 may also be in a block shape, a hemispherical shape, etc.

[0221] In one embodiment, the first anti-rotation member 611 is made of a first elastic material, and the second anti-rotation member 621 is made of a second elastic material. The first elastic material and the second elastic material can be rubber or plastic, wherein the plastic can be wear-resistant flexible plastic. During the reciprocating motion of the movable component 30, the contact friction between the first anti-rotation member 611 and the second side wall 2142, and the second anti-rotation member 621 and the movable contact component 30a can be reduced, and the noise generated by the friction can be reduced.

[0222] The first elastic material and the second elastic material may be the same or different.

[0223] Of course, in other embodiments, the first anti-rotation component 611 is connected to the inner wall surface of the second side wall 2142 and contacts the outer side surface 3311b of the side plate 3311; the second anti-rotation component 621 is connected to the movable contact assembly 30a and contacts the inner side surface 3311a of the side plate 3311.

[0224] Alternatively, the first anti-rotation component 611 is connected to the inner wall surface of the second side wall 2142 , and the second anti-rotation component 621 is connected to the inner side surface 3311 a of the side plate 3311 .

[0225] Alternatively, the first anti-rotation component 611 is connected to the outer side surface 3311 b of the side plate 3311 , and the second anti-rotation component 621 is connected to the movable contact assembly 30 a .

[0226] like Fig.21 and Fig. 22 As shown, the similarities between the tenth embodiment of the present application and the above embodiments are not repeated here, and the difference lies in that:

[0227] The second side wall 2142 has a side wall body 21421 and a convex rib 21422. The convex rib 21422 is convexly disposed on the inner surface of the side wall body 21421 and extends along the second direction D2 for contacting the first anti-rotation member 611. The inner surface of the side wall body 21421 refers to a side surface of the side wall body 21421 facing the contact support 331.

[0228] In the embodiment of the present application, the first anti-rotation component 611 is connected to the side plate 3311 and is able to contact the rib 21422 instead of the side wall body 21421. On the one hand, the provision of the rib 21422 can improve the structural strength of the insulating cover 21 and reduce the deformation of the insulating cover 21; on the other hand, the processing accuracy of the rib 21422 is easier to control, thereby improving the dimensional accuracy of the contact between the rib 21422 and the first anti-rotation component 611.

[0229] It is understandable that the first anti-rotation member 611 and the second anti-rotation member 621 of the tenth embodiment can adopt the structure of any of the above embodiments, which will not be repeated here. In addition, the present application does not specifically limit the shape of the rib 21422, for example, the rib 21422 can be a long strip protrusion, a hemispherical protrusion, a block protrusion, etc., and the surface of the rib 21422 in contact with the first anti-rotation member 611 can be a plane or an arc surface.

[0230] Continue reading Fig.21 and Fig. 22The convex rib 21422 has a contact surface 21422a and a guide slope 21422b, wherein the contact surface 21422a is used to contact the first anti-rotation member 611, and the guide slope 21422b is connected to the contact surface 21422a and extends obliquely from the contact surface 21422a toward the direction close to the side wall body 21421 and away from the static contact 22, and is used to guide the first anti-rotation member 611 to move to the contact surface 21422a. When the coil of the relay is powered off, the first anti-rotation member 611 does not contact the convex rib 21422.

[0231] In detail, when the coil of the relay is powered off, the first anti-rotation member 611 does not contact the convex rib 21422. When the coil of the relay is powered on, the moving assembly 30 begins to move. In the initial stage of the moving assembly 30 starting to move, the first anti-rotation member 611 still does not contact the convex rib 21422, so as to prevent the normal movement of the moving assembly 30 from being affected by the contact friction between the first anti-rotation member 611 and the convex rib 21422. As the moving assembly 30 continues to move, the guide slope 21422b first contacts the first anti-rotation member 611 to guide the first anti-rotation member 611 to move toward the abutting surface 21422a. As the moving assembly 30 moves further, the first anti-rotation member 611 moves from the guide slope 21422b to the abutting surface 21422a. The first anti-rotation member 611 is deformed under the pressure of the abutting surface 21422a to form a rebound force, thereby preventing the contact bracket 331 from deflecting.

[0232] It is worth mentioning that the movable component 30 drives the first anti-rotation component 611 to start moving. Before the first anti-rotation component 611 contacts the rib 21422, if the contact bracket 331 is deflected, the contact bracket 331 can be returned to the original position through the action of the guiding slope 21422b and the abutting surface 21422a.

[0233] It can be seen that the rib 21422 is designed with a contact surface 21422a and a guide slope 21422b. On the one hand, the inclination of the guide slope 21422b can play a correction role during the assembly process of the movable component 30 and the insulating cover 21; on the other hand, under the synergistic action of the abutment surface 21422a and the guide slope 21422b, the contact bracket 331 can be returned to the center and play an anti-deflection role.

[0234] like Fig.23 As shown, the similarities between the eleventh embodiment of the present application and the above embodiments are not repeated here, and the difference lies in that:

[0235] The first anti-rotation component 611 is connected to the inner wall surface of the second side wall 2142 and contacts the side plate 3311 .

[0236] For example, the first anti-rotation component 611 and the second side wall 2142 may be connected by welding, bonding, etc., which will not be listed one by one in this application.

[0237] like Fig.24 and Fig.25 As shown, the similarities between the eleventh embodiment of the present application and the above embodiments are not repeated here, and the difference is that the first anti-rotation component 610 is used to generate a first anti-rotation magnetic force, and the second anti-rotation component 620 is used to generate a second anti-rotation magnetic force. Specifically:

[0238] The second anti-rotation assembly 620 includes at least two pairs of first magnets 631, one first magnet 631 in each pair is connected to the movable contact assembly 30a, and the other first magnet 631 can be fixedly arranged relative to the insulating cover 21, or fixedly connected to the side plate 3311. A first magnetic force is formed between the two pairs of first magnets 631, and at least two first magnetic forces form a second anti-rotation magnetic force for limiting the movable contact assembly 30a from rotating around the axis of the push rod member.

[0239] The first anti-rotation assembly 610 includes at least two second magnets 641, one second magnet 641 in each pair is connected to the push rod member 33, and the other second magnet 641 is fixedly arranged relative to the insulating cover 21. A second magnetic force is formed between the two second magnets 641 in a pair, and at least two second magnetic forces form a first anti-rotation magnetic force for limiting the push rod member 33 from rotating around the axis of the push rod member.

[0240] It should be noted that the other first magnet 631 is fixedly arranged relative to the insulating cover 21 and includes multiple embodiments. For example, the first magnet 631 is fixedly connected to the inner wall surface of one of the second side walls 2142; or, the first magnet 631 is fixedly connected to the outer wall surface of the second side wall 2142; or, the first magnet 631 is fixedly connected to a bracket, which can be fixedly connected to the insulating cover 21 or to the yoke iron plate 25, and the bracket can be located inside the insulating cover 21 or outside the insulating cover 21.

[0241] Similarly, another second magnet 641 is fixedly arranged relative to the insulating cover 21 and includes multiple embodiments. For example, the second magnet 641 is fixedly connected to the inner wall surface of the second side wall 2142; or, the second magnet 641 is fixedly connected to the outer wall surface of the second side wall 2142; or, the second magnet 641 is fixedly connected to a bracket, which can be fixedly connected to the insulating cover 21 or fixedly connected to the yoke iron plate 25, and the bracket can be located inside the insulating cover 21 or outside the insulating cover 21.

[0242] When the first magnet 631 and the second magnet 641 are connected to the bracket, the first magnet 631 and the second magnet 641 can be connected to the same bracket, or respectively connected to two different brackets.

[0243] It should also be noted that the first magnetic force is a repulsive force or an attractive force, and the second magnetic force is a repulsive force or an attractive force. When it is a repulsive force, the polarities of the magnetic poles facing the two paired magnets are the same; when it is an attractive force, the polarities of the magnetic poles facing the two paired magnets are opposite.

[0244] As an example, when the first magnetic force is a repulsive force, another first magnet 631 is fixedly connected to the inner wall surface of the second side wall 2142. In this way, under the action of the repulsive force, the first magnet 631 can fit more closely with the inner wall surface of the corresponding second side wall 2142.

[0245] When the first magnetic force is an attractive force, another first magnet 631 is fixedly connected to the outer wall surface of the second side wall 2142. In this way, under the action of the repulsive force, the first magnet 631 can fit more closely with the outer wall surface of the corresponding second side wall 2142.

[0246] When the second magnetic force is a repulsive force, another second magnet 641 is connected to the inner wall surface of the second side wall 2142 , so that under the action of the repulsive force, the second magnet 641 can fit more closely with the inner wall surface of the corresponding second side wall 2142 .

[0247] When the second magnetic force is an attractive force, another second magnet 641 is connected to the outer wall surface of the second side wall 2142 , so that under the action of the repulsive force, the second magnet 641 can fit more closely with the outer wall surface of the corresponding second side wall 2142 .

[0248] Next, an example is used in which another first magnet 631 is fixedly connected to the inner side surface 3311a of the side plate 3311, another second magnet 641 is connected to the inner wall surface of the second side wall 2142, and both the first magnetic force and the second magnetic force are repulsive forces.

[0249] The second anti-rotation component 620 is connected to the push rod member 33 and the movable contact component 30a, and is used to generate a repulsive force between the push rod member 33 and the movable contact component 30a to limit the rotation of the movable contact component 30a around the axis of the push rod member 33; the first anti-rotation component 610 is connected to the push rod member 33 and the inner wall surface of the insulating cover 21, and is used to generate a repulsive force between the push rod member 33 and the insulating cover 21 to limit the rotation of the push rod member 33 around the axis of the push rod member 33.

[0250] In the embodiment of the present application, under the action of the repulsive force, the anti-rotation structure 60 can not only inhibit the push rod member 33 from rotating relative to the insulating cover 21 , but also inhibit the movable contact element 30 a from rotating relative to the push rod member 33 .

[0251] The orthographic projections of the two paired first magnets 631 on a target plane each have overlapping first projections, and the orthographic projections of the two paired second magnets 641 on the target plane each have overlapping second projections; wherein the target plane is perpendicular to the third direction D3. When the coil of the relay is powered on or off, the orthographic projections of the two paired first magnets 631 on the target plane each have overlapping first projections, and the orthographic projections of the two paired second magnets 641 on the target plane each have overlapping second projections. That is to say, during the entire process of the movement of the moving component 30, the orthographic projections of the two paired first magnets 631 on a target plane each have overlapping first projections, and the orthographic projections of the two paired second magnets 641 on the target plane each have overlapping second projections. In this way, the moving component 30 is subjected to the magnetic force during the entire process of the movement, so that the moving component 30 has an anti-rotation effect during the entire process of the movement.

[0252] As an example, the orthographic projection areas of the two paired first magnets 631 on the target plane are different. For example, the orthographic projection area of ​​the first magnet 631 connected to the side plate 3311 is larger, and the orthographic projection area of ​​the first magnet 631 connected to the movable contact component 30a is smaller. In addition, during the entire process of the movement of the movable component 30, the orthographic projection of the first magnet 631 connected to the movable contact component 30a is always located within the orthographic projection of the first magnet 631 connected to the side plate 3311.

[0253] Similarly, the orthographic projection areas of the two second magnets 641 in a pair on the target plane are different. For example, the orthographic projection area of ​​the second magnet 641 connected to the insulating cover 21 is larger, and the orthographic projection area of ​​the second magnet 641 connected to the push rod member 33 is smaller. In addition, during the entire process of the movement of the moving assembly 30, the orthographic projection of the second magnet 641 connected to the push rod member 33 is always located within the orthographic projection of the second magnet 641 connected to the insulating cover 21.

[0254] Of course, the sizes of the two pairs of first magnets 631 and the two pairs of second magnets 641 can also be reversed, that is, the orthographic projection area of ​​the first magnet 631 connected to the side plate 3311 is smaller, the orthographic projection area of ​​the first magnet 631 connected to the movable contact assembly 30a is larger, the orthographic projection area of ​​the second magnet 641 connected to the insulating cover 21 is smaller, and the orthographic projection area of ​​the second magnet 641 connected to the push rod member 33 is larger.

[0255] like Fig.24 As shown, the first anti-rotation component 610 includes at least two pairs of second magnets 641 symmetrically arranged about the axis of the push rod member 33; and / or the second anti-rotation component 620 includes at least two pairs of first magnets 631 symmetrically arranged about the axis of the push rod member 33.

[0256] like Fig.24 and Fig.25 As shown, the movable contact component 30a has a side surface 30d facing the two side plates 3311 respectively. Among them, the movable contact piece 31 and / or the second magnet 35 have a side surface 30d. For example, in one embodiment, the movable contact piece 31 has a side surface 30d. In detail, when there is one movable contact piece 31, the surfaces of the movable contact piece 31 facing away from each other along the third direction D3 are the side surfaces 30d; when there are multiple movable contact pieces 31, the multiple movable contact pieces 31 are arranged side by side along the third direction D3, and the surfaces of the two outermost movable contact pieces 31 in the multiple movable contact pieces 31 facing away from each other along the third direction D3 are the side surfaces 30d. In another embodiment, the second magnet 35 has a side surface 30d. In detail, when there are multiple second magnets 35, the multiple second magnets 35 are arranged along the third direction D3, and the surfaces of the two outermost second magnets 35 in the multiple second magnets 35 facing away from each other along the third direction D3 are the side surfaces 30d.

[0257] The second anti-rotation assembly 620 includes at least two pairs of first magnets 631. The two first magnets 631 in each pair have the same polarity of the magnetic poles facing each other. At least one pair of first magnets 631 is provided between the corresponding side plate 3311 and the side surface 30d. The two pairs of first magnets 631 are respectively connected to the inner side surface 3311a and the side surface 30d of the corresponding side plate 3311.

[0258] It can be seen that along the third direction D3, both sides of the movable contact component 30a are subjected to repulsive force, and the movable contact component 30a is equivalent to being suspended between the two side plates 3311. When the movable contact component 30a deflects toward a direction close to a side plate 3311, the distance between the two first magnets 631 becomes smaller, and then the repulsive force increases, and the repulsive force can prevent the movable contact component 30a from continuing to rotate toward the direction close to the side plate 3311, thereby inhibiting the rotation of the movable contact component 30a.

[0259] In addition, since the side plate 3311 is a flat plate structure, the first magnet 631 can also be designed as a flat plate structure and fit onto the surface of the side plate 3311, so that the surface area of ​​the magnet is larger, thereby increasing the repulsive force between the two pairs of first magnets 631 and improving the anti-deflection capability.

[0260] As an example, the two first magnets 631 in a pair are arranged face to face and spaced apart along the third direction D3.

[0261] In the embodiment of the present application, the two first magnets 631 are arranged at intervals, that is, there is a gap between the two first magnets 631 and they are not in direct contact. In this way, the two first magnets 631 can not only play an anti-rotation role, but also avoid friction noise caused by direct contact between the two first magnets 631.

[0262] The first anti-rotation component 610 includes at least two pairs of second magnets 641, and the polarities of the magnetic poles facing each other of the two second magnets 641 in each pair are the same. At least one pair of second magnets 641 is provided between the corresponding second side wall 2142 and the side plate 3311, and the two pairs of second magnets 641 are respectively connected to the inner wall surface of the corresponding second side wall 2142 and the outer side surface 3311b of the side plate 3311.

[0263] Of course, it is understandable that the second magnet 641 connected to the push rod member 33 may not be installed on the side plate 3311 of the contact bracket 331. In other embodiments, the second magnet 641 may also be connected to both sides of the mounting seat 332 along the third direction D3, or connected to both sides of the fixing plate 3312 along the third direction D3; or connected to both sides of the upper magnetic conductor 34a along the third direction D3. When the second magnet 641 is connected to both sides of the upper magnetic conductor 34a along the third direction D3, if the upper magnetic conductor 34a has only one first magnetic conductor 34, the second magnet 641 can be directly connected to both sides of the first magnetic conductor 34 along the third direction D3; if the upper magnetic conductor 34a includes a plurality of first magnetic conductors 34 arranged side by side along the third direction D3, the second magnet 641 is connected to the outermost sides of the two outermost first magnetic conductors 34 among the plurality of first magnetic conductors 34.

[0264] In addition, it is worth mentioning that the first magnet 631 connected to the movable contact assembly 30a can also be connected to the lower magnetic conductor 35a.

[0265] For example, two outer sides of the lower magnetic conductor 35a along the third direction D3 are respectively two side surfaces 30d of the movable contact assembly 30a.

[0266] It should be noted that if the lower magnetic conductor 35a has only one second magnetic conductor 35, the first magnet 631 can be directly connected to both sides of the second magnetic conductor 35 along the third direction D3; if the lower magnetic conductor 35a includes multiple second magnetic conductors 35 arranged side by side along the third direction D3, the first magnet 631 is connected to the outermost sides of the two outermost second magnetic conductors 35 among the multiple second magnetic conductors 35.

[0267] As an example, the first magnet 631 and the second magnet 641 are both permanent magnets.

[0268] like Fig.26 and Fig. 27 As shown, the similarities between the thirteenth embodiment of the present application and the twelfth embodiment are not repeated here, and the difference lies in that:

[0269] The second anti-rotation component 620 includes six pairs of first magnets 631, which are arranged between the corresponding side plates 3311 and the side surfaces 30d and between the corresponding side plates 3311 and the second side walls 2142 according to the twelfth embodiment, and the remaining four pairs of first magnets 631 are arranged between the corresponding second side walls 2142 and the side surfaces 30d.

[0270] In the embodiment of the present application, for the movable contact component 30a, not only a pair of first magnets 631 are provided between the movable contact component 30a and the side plate 3311, but also a pair of first magnets 631 are provided between the movable contact component 30a and the second side wall 2142, that is, a repulsive force can be generated between the movable contact component 30a and the side plate 3311, and a repulsive force can also be generated between the movable contact component 30a and the second side wall 2142. In this way, the ability of the anti-rotation structure 60 to suppress the deflection of the movable contact component 30a is improved, the consistency of the contact position between the movable contact component 30a and the static contact 22 is ensured, and the stability of the contact resistance is improved.

[0271] like Fig.26 As shown, except for the two pairs of first magnets 631 located between the corresponding side plates 3311 and the side surface 30d, the other four pairs of first magnets 631 are located outside the contact support 331. One first magnet 631 in each pair is connected to the end of the movable contact assembly 30a extending from the contact support 331, and the other first magnet 631 is connected to the inner wall surface of the second side wall 2142; the two first magnets 631 located on the same side surface 30d are symmetrically arranged with the second magnet 641 on the side plate 3311 corresponding to the side surface 30d as the center.

[0272] In one embodiment, the first magnet 631 is connected to the movable contact piece 31. Specifically, two first magnets 631 are connected to both ends of the movable contact piece 31 extending from the contact support 331, that is, four first magnets 631 are connected to the movable contact piece 31. The surface of the movable contact piece 31 along the third direction D3 is the side surface 30d.

[0273] Of course, in other embodiments, the first magnet 631 may also be connected to the second magnetic conductor 35 of the movable contact assembly 30a.

[0274] It is understandable that the first anti-rotation component 610 and the second anti-rotation component 620 may not all generate anti-rotation elastic force or anti-rotation magnetic force. For example, the first anti-rotation component 610 is designed to generate anti-rotation elastic force, while the second anti-rotation component 620 is designed to generate anti-rotation magnetic force; or, the first anti-rotation component 610 is designed to generate anti-rotation magnetic force, while the second anti-rotation component 620 is designed to generate anti-rotation elastic force.

[0275] In summary, the relay of the embodiment of the present application has at least the following advantages and beneficial effects:

[0276] The relay of the embodiment of the present application includes an anti-rotation structure 60. The anti-rotation structure 60 can not only limit the rotation of the push rod member 33 relative to the insulating cover 21 around the axis of the push rod member 33, but also limit the rotation of the movable contact assembly 30a relative to the push rod member 33 around the axis of the push rod member 33. On the one hand, it can reduce or even avoid the problem that metal particles and / or ceramic powder are generated and fall on the contact surface of the contact due to frictional contact between the push rod member 33 and / or the movable contact assembly 30a and the insulating cover 21, resulting in increased contact resistance or even non-conduction, thereby ensuring the reliability of the relay operation; on the other hand, it avoids the influence of the rotation of the movable contact assembly 30a on the contact position with the static contact 22, ensures the consistency of the contact position of the movable contact assembly 30a and the static contact 22, and improves the stability of the contact resistance.

[0277] Further, the push rod member 33 includes a contact support 331, and the first anti-rotation component 610 is correspondingly arranged between the side wall of the insulating cover 21 and the side plate 3311 of the contact support 331, which can limit the contact support 331 from rotating relative to the insulating cover 21 around the axis of the push rod member 33; the second anti-rotation component 620 is correspondingly arranged between the side plate 3311 of the contact support 331 and the movable contact component 30a, which can limit the movable contact component 30a from rotating relative to the contact support 331 around the axis of the push rod member 33. By reducing the rotation amplitude of the contact support 331 and / or the movable contact component 30a, the contact friction between the contact support 331 and the side wall of the insulating cover 21 and / or the movable contact component 30a is reduced, and the noise generated by the friction between the contact support 331 and the side wall of the insulating cover 21 and / or the movable contact component 30a can also be reduced.

[0278] Furthermore, the first anti-rotation component 611 is connected to the mounting hole 3313 of the side panel 3311 through the first hook 6113. The mounting hole 3313 is used to limit the protrusion 3312a of the fixing plate 3312. On the one hand, the first anti-rotation component 611 can be firmly connected to the side panel 3311 and is not prone to accidental falling off. On the other hand, the first anti-rotation component 611 and the side panel 3311 can be connected without adding other connecting structures or connecting components, which is convenient for assembly and saves costs.

[0279] Furthermore, the first hook 6113 of the first anti-rotation component 611 and the second hook 6213 of the second anti-rotation component 621 are connected to the same mounting hole 3313 on the side panel 3311, and the first hook 6113 and the second hook 6213 are stacked. On the one hand, the compactness of the assembled structure of the side panel 3311, the first anti-rotation component 611 and the second anti-rotation component 621 is improved; on the other hand, the existing mounting hole 3313 on the side panel 3311 is fully utilized without the need for additional connecting structure, which facilitates assembly and saves costs.

[0280] It is understandable that the various embodiments / implementations provided in the present application can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0281] In the application embodiments, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the application embodiments can be understood according to the specific circumstances.

[0282] In the description of the application embodiments, it should be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application embodiments and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the application embodiments.

[0283] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0284] The above are only preferred embodiments of the application embodiments and are not intended to limit the application embodiments. For those skilled in the art, the application embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application embodiments shall be included in the protection scope of the application embodiments.

Claims

1. A relay, characterized in that: include: Insulation cover; a pair of static contacts connected to the insulating cover; A movable assembly, comprising a push rod component and a movable contact component, wherein the push rod component is used to drive the movable contact component to move so as to contact or separate with a pair of the stationary contacts; as well as The anti-rotation structure is used to limit the push rod member from rotating around the axis of the push rod member, and is used to limit the movable contact assembly from rotating around the axis of the push rod member.

2. The relay according to claim 1, characterized in that: The anti-rotation structure comprises: A first anti-rotation assembly, used for generating a first anti-rotation force to limit the push rod member from rotating around the axis of the push rod member; The second anti-rotation component is used to generate a second anti-rotation force to limit the movable contact component from rotating around the axis of the push rod component.

3. The relay according to claim 2, characterized in that: The first anti-rotation force is a first anti-rotation elastic force or a first anti-rotation magnetic force, and the second anti-rotation force is a second anti-rotation elastic force or a second anti-rotation magnetic force.

4. The relay according to claim 2, characterized in that: The first anti-rotation component is connected to or in contact with the push rod member; The second anti-rotation component is connected to or in contact with the movable contact component.

5. The relay according to claim 4, characterized in that: The insulating cover has a cylindrical side wall; The first anti-rotation assembly is disposed between the cylindrical side wall and the push rod member.

6. The relay according to claim 5, characterized in that: The push rod component includes a contact bracket, and the first anti-rotation component and the contact bracket are separate structures.

7. The relay according to claim 6, characterized in that: The rigidity of the first anti-rotation component is smaller than the rigidity of the contact support.

8. The relay according to claim 5, characterized in that: During overtravel, the first anti-rotation component contacts the cylindrical side wall.

9. The relay according to claim 8, characterized in that: The first anti-rotation component is an elastic member; When the first anti-rotation component contacts the cylindrical side wall, the first anti-rotation component is squeezed by the cylindrical side wall and deformed.

10. The relay according to any one of claims 5 to 9, characterized in that: The push rod component includes a contact support, and the contact support includes two side plates, the two side plates are arranged in a spaced relationship along a third direction, and the movable contact assembly is located between the two side plates; wherein a pair of the static contacts are arranged in a first direction, and the moving direction of the movable assembly is defined as a second direction, and the first direction, the second direction, and the third direction are mutually perpendicular in pairs; The cylindrical side wall comprises two second side walls arranged opposite to each other along the third direction, and the two side plates correspond to the two second side walls respectively; The first anti-rotation assembly includes at least two first anti-rotation parts, and at least one of the first anti-rotation parts is disposed between the corresponding second side wall and the side plate.

11. The relay according to claim 10, characterized in that: The first anti-rotation component is connected to the side plate and is used for being deformed by being squeezed by the second side wall.

12. The relay according to claim 11, characterized in that: There are two first anti-rotation parts, which are respectively attached to the surfaces of the two side plates facing away from the movable contact assembly; The first anti-rotation component is made of a first elastic material.

13. The relay according to claim 12, characterized in that: The second anti-rotation assembly includes two second anti-rotation parts, which are respectively attached to the surfaces of the two side plates facing the movable contact assembly and are used to be deformed by being squeezed by the movable contact assembly; The second anti-rotation component is made of a second elastic material.

14. The relay according to claim 11, characterized in that: The first anti-rotation component includes a first connecting portion and a first elastic sheet portion, wherein the first connecting portion is connected to the side plate, and the first elastic sheet portion is connected to the first connecting portion and is squeezed by the cylindrical side wall to generate deformation.

15. The relay according to claim 14, characterized in that: The contact support further comprises a fixing plate, wherein the fixing plate is provided with protrusions at both ends along the third direction, each of the side plates has a mounting hole, and the two protrusions are respectively confined in the two mounting holes; the movable contact assembly is located in a space enclosed by the two side plates and the fixing plate; Each of the first connecting parts has a first hook, and at least one of the first hooks is hung on the lower edge of the mounting hole and is pressed by the protruding part.

16. The relay according to claim 15, characterized in that Each of the side plates is connected to at least two of the first anti-rotation parts, and at least two of the first hooks of at least two of the first anti-rotation parts are simultaneously hung on the lower edge of the same mounting hole and are simultaneously pressed by one of the protrusions of the fixing plate.

17. The relay according to claim 15 or 16, characterized in that: The second anti-rotation assembly includes two second anti-rotation parts. Two second anti-rotation parts are respectively connected to one side of the two side plates facing the movable contact component; the second anti-rotation part includes a second connecting portion and a second elastic sheet portion, the second connecting portion is connected to the side plate, the second elastic sheet portion is connected to the second connecting portion, and is squeezed by the movable contact component to produce deformation; each second connecting portion has a second hook, the second hook is hung on the lower edge of the mounting hole, and is pressed by the protrusion; the second hook overlaps with the first hook and is pressed by the protrusion.

18. The relay according to claim 14, characterized in that The first connection portion is riveted or welded to the side plate.

19. The relay according to claim 18, characterized in that The contact support further comprises a fixing plate, wherein the fixing plate is provided with protrusions at both ends along the third direction, each of the side plates has a mounting hole, and the two protrusions are respectively confined in the two mounting holes; the movable contact assembly is located in a space enclosed by the two side plates and the fixing plate; The second anti-rotation assembly includes two second anti-rotation parts, each of which is in contact with the movable contact assembly; Two second anti-rotation parts are respectively connected to one side of the two side plates facing the movable contact component; the second anti-rotation part includes a second connecting portion and a second elastic sheet portion, the second connecting portion is connected to the side plate, the second elastic sheet portion is connected to the second connecting portion, and is squeezed by the movable contact component to generate deformation; each second connecting portion has a second hook, the second hook is hung on the lower edge of the mounting hole, and is pressed by the protrusion.

20. The relay according to claim 11, characterized in that The second side wall has a side wall body and a convex rib. The convex rib is convexly arranged on the inner surface of the side wall body and extends along the second direction for contacting the first anti-rotation component.

21. The relay according to claim 20, characterized in that The convex rib has an abutment surface and a guide slope, the abutment surface is used to abut against the first anti-rotation part, the guide slope is connected to the abutment surface, and extends obliquely from the abutment surface toward the direction close to the side wall body and away from the static contact, for guiding the first anti-rotation part to move to the abutment surface.

22. The relay according to claim 21, characterized in that When the coil of the relay is de-energized, the first anti-rotation component does not contact the convex rib.

23. The relay according to claim 10, characterized in that The second anti-rotation assembly comprises two second anti-rotation parts, each of which is in contact with the movable contact assembly; two second anti-rotation parts are respectively connected to one side of the two side plates facing the movable contact assembly; The first anti-rotation component and the second anti-rotation component located on both sides of each side plate in the thickness direction are connected via a bridge portion, and the bridge portion is suspended on the upper edge of the side plate.

24. The relay according to claim 23, characterized in that The first anti-rotation component, the bridging portion and the second anti-rotation component are an integrated structure.

25. The relay according to claim 23, characterized in that Two bridge portions are connected between the first anti-rotation component and the second anti-rotation component, and the two bridge portions are arranged at intervals along the first direction and form a first gap; The side plate has an insertion portion, and the insertion portion is inserted into the first notch.

26. The relay according to claim 25, characterized in that The contact support further comprises a fixing plate, wherein the fixing plate is provided with protrusions at both ends along the third direction, each of the side plates has a mounting hole, and the two protrusions are respectively confined in the two mounting holes; the movable contact assembly is located in a space enclosed by the two side plates and the fixing plate; Two pressing portions are also provided at both ends of the fixing plate along the third direction, the two pressing portions are spaced apart along the first direction and form a second notch, the protruding portion is located in the second notch, and the inserting portion is inserted into the second notch; The two pressing portions at one end of the fixing plate along the third direction respectively press the two bridging portions between the first anti-rotation component and the second anti-rotation component.

27. The relay according to any one of claims 23 to 26, characterized in that: The second anti-rotation component also includes a middle portion connected between the two second anti-rotation parts.

28. The relay according to claim 27, characterized in that The push rod component also includes a mounting seat, the contact support is connected to the mounting seat, and the middle portion is connected to the mounting seat.

29. The relay according to claim 27, characterized in that The middle portion and the two second anti-rotation components are an integral structure.

30. The relay according to claim 10, characterized in that The first anti-rotation component is connected to the second side wall.

31. The relay according to claim 4, characterized in that The second anti-rotation assembly includes at least two pairs of first magnets, one of the first magnets in each pair is connected to the movable contact assembly, and the other first magnet is fixedly arranged relative to the insulating cover or fixedly connected to the push rod member; A first magnetic force is formed between the two first magnets in a pair, and the first magnetic force is used to limit the movable contact assembly from rotating around the axis of the push rod member; The first anti-rotation component includes at least two pairs of second magnets, one of the second magnets in each pair is connected to the push rod component, and the other second magnet is fixed relative to the insulating cover, and a second magnetic force is formed between the two pairs of second magnets, and the second magnetic force is used to limit the rotation of the push rod component around the axis of the push rod component.

32. The relay according to claim 31, characterized in that The first magnetic force is a repulsive force or an attractive force.

33. The relay according to claim 32, characterized in that When the first magnetic force is a repulsive force, another of the first magnets is fixedly connected to the inner wall surface of the insulating cover.

34. The relay according to claim 32, characterized in that When the first magnetic force is an attractive force, another of the first magnets is fixedly connected to the outer wall surface of the insulating cover.

35. The relay according to claim 31, characterized in that The second magnetic force is a repulsive force or an attractive force.

36. The relay according to claim 35, characterized in that When the second magnetic force is a repulsive force, another of the second magnets is fixedly connected to the inner wall surface of the insulating cover.

37. The relay according to claim 35, characterized in that When the second magnetic force is an attractive force, another of the second magnets is fixedly connected to the outer wall surface of the insulating cover.

38. The relay according to claim 31, characterized in that The orthographic projections of the two first magnets in a pair on a target plane have overlapping first projections, and the orthographic projections of the two second magnets in a pair on the target plane have overlapping second projections; The arrangement direction of the pair of static contacts is defined as a first direction, the movement direction of the dynamic component is defined as a second direction, and a third direction is defined, wherein the first direction, the second direction and the third direction are perpendicular to each other; The target plane is perpendicular to the third direction.

39. The relay according to claim 38, characterized in that When the coil of the relay is powered off or on, the orthographic projections of the two first magnets in a pair on the target plane both have overlapping first projections, and the orthographic projections of the two second magnets in a pair on the target plane both have overlapping second projections.

40. The relay according to claim 31, characterized in that The at least two pairs of the first magnets included in the second anti-rotation component are symmetrically arranged about the axis of the push rod member; and / or the at least two pairs of the second magnets included in the first anti-rotation component are symmetrically arranged about the axis of the push rod member.

41. The relay according to claim 31, characterized in that The push rod member includes a contact support, the contact support includes two side plates, the two side plates are arranged at an interval, the movable contact assembly is located between the two side plates, and the movable contact assembly has side surfaces facing the two side plates respectively; At least one pair of first magnets is disposed between the corresponding side plate and the side surface, and the two first magnets in a pair are respectively connected to a side surface of the side plate facing the movable contact component and the side surface.

42. The relay according to claim 41, characterized in that The movable contact assembly comprises a movable contact piece and a lower magnetic conductor, wherein the movable contact piece is used to contact or separate with a pair of the stationary contacts, and the lower magnetic conductor is fixedly connected to a side of the movable contact piece facing away from the stationary contacts; The relay further includes an upper magnetic conductor, which is located on the side of the moving contact piece facing the static contact, and the upper magnetic conductor and the lower magnetic conductor are used to form a magnetic conductive circuit; The two outer sides of the lower magnetic conductor are respectively the two side surfaces, and both are connected with the first magnet.

43. The relay according to claim 41 or 42, characterized in that: The insulating cover comprises two second side walls arranged at intervals, the arrangement direction of the two second side walls is the same as the arrangement direction of the two side plates, and the two side plates are located between the two second side walls; At least one pair of the second magnets is provided between the corresponding second side wall and the side plate, and the two second magnets in a pair are respectively connected to the inner wall surface of the corresponding second side wall and the outer side surface of the side plate.

44. The relay according to claim 43, characterized in that The second anti-rotation assembly includes six pairs of the first magnets, one pair of the first magnets is provided between the corresponding side plate and the side surface, two pairs of the first magnets are provided between the corresponding second side wall and the side surface, one of the first magnets in each of the two pairs of the first magnets is connected to the end of the movable contact assembly extending from the contact bracket, and the other first magnet in each pair is connected to the inner wall surface of the second side wall; The two first magnets located on the same side surface are symmetrically arranged with the second magnet on the side plate corresponding to the side surface as the center.

45. The relay according to claim 31, characterized in that The first magnet and the second magnet are both permanent magnets.

46. ​​The relay according to claim 1, characterized in that The insulating cover comprises: A top wall connected to a pair of static contacts; and The cylindrical side wall is connected to the outer periphery of the top wall, and the anti-rotation structure is located in the space surrounded by the cylindrical side wall.

47. The relay according to claim 46, characterized in that The cylindrical side wall also includes two first side walls and two second side walls, the two first side walls are arranged at intervals along the first direction, the two second side walls are arranged at intervals along the third direction, and the two first side walls and the two second side walls are connected end to end in sequence to form an annular structure; wherein the first direction is the arrangement direction of a pair of static contacts, the movement direction of the moving component is defined as the second direction, and the first direction, the second direction, and the third direction are perpendicular to each other.

48. The relay according to claim 1, characterized in that The push rod component comprises a push rod, a mounting seat and a contact bracket, wherein the mounting seat is connected to one axial end of the push rod, the contact bracket is connected to the mounting seat, and the movable contact assembly is arranged in a space surrounded by the contact bracket; The movable assembly further includes a first elastic member, which is located between the mounting seat and the movable contact assembly and is used to provide an elastic force for the movable contact assembly to move toward the stationary contact.

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