Auxiliary contact part and swing type magnetic latching relay

Abstract

The utility model discloses an auxiliary contact part and a swing-type magnetic latching relay, the auxiliary contact part is used for the swing-type magnetic latching relay, a magnetic circuit part of the swing-type magnetic latching relay comprises a coil assembly and an armature assembly, the coil assembly is provided with two magnetic driving ends arranged along the Y-axis direction, and the armature assembly is provided with a magnetic coil. The armature assembly swings relative to the coil assembly around a rotating axis extending in the Z-axis direction. The auxiliary contact part comprises an auxiliary movable contact piece and two auxiliary static contact pieces, each auxiliary static contact piece is provided with an auxiliary contact part extending in the direction perpendicular to the X-axis direction, and the two auxiliary contact parts are arranged in the Z-axis direction; the auxiliary moving contact is fixedly connected to the armature assembly and extends in the Z-axis direction, and the auxiliary moving contact is driven by the armature assembly to abut against or be away from the two auxiliary static contacts so that the two auxiliary static contacts can be connected or disconnected. When the auxiliary contact part is installed, the size of the relay is small.

Description

Technical Field

[0001] The utility model relates to the field of relays, in particular to an auxiliary contact part and a swing type magnetic latching relay. Background Art

[0002] The magnetic holding relay in the prior art usually includes a housing and a magnetic circuit part, a contact part and a push card accommodated in the housing. The magnetic circuit part includes a coil assembly and an armature assembly rotating relative to the coil assembly. The contact part includes a moving contact and a static contact group. The moving contact group is provided with a moving contact, and the static contact group is provided with a static contact. The push card is driven by the armature assembly to move and drive the moving contact and the static contact to close or disconnect. The magnetic circuit part has a magnetic holding function, the coil assembly is provided with two magnetic drive ends, the armature assembly includes a permanent magnet, two armatures and an insulating part fixed to the permanent magnet and the two armatures, each armature is provided with two attracting parts suitable for attracting the magnetic drive end, and the magnetic circuit part is in the magnetic holding state, and the two armatures respectively have an attracting part that attracts the corresponding magnetic drive end to form a closed magnetic circuit. The armature assembly of this structure needs to cooperate with the magnetic drive end on both sides of its attracting part, so the push card cannot be installed on these two sides, but can only be installed on both sides of the armature assembly along the direction of the permanent magnet pole. In this way, the armature assembly is generally arranged with coil windings and push cards on both sides along the direction of the permanent magnet pole, and the space is relatively compact. On this basis, when the magnetic holding relay also includes an auxiliary switch, in order to make the auxiliary switch also driven by the armature assembly, it is often necessary to increase the space of the accommodating part, resulting in a larger volume of the relay. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems in the background technology and to provide an auxiliary contact part and a swing type magnetic latching relay. When the auxiliary contact part is installed, the volume of the relay is small.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical solution one and its related embodiments provide an auxiliary contact part, which is used for a swinging magnetic latching relay. The magnetic circuit part of the swinging magnetic latching relay includes a coil assembly and an armature assembly. The coil assembly is provided with two magnetic drive ends arranged along the Y-axis direction, and the armature assembly swings relative to the coil assembly around a rotation axis extending along the Z-axis direction; the auxiliary contact part includes an auxiliary moving contact and two auxiliary static contacts, each auxiliary static contact is provided with an auxiliary contact portion extending perpendicular to the X-axis direction, and the two auxiliary contact portions are arranged along the Z-axis direction; the auxiliary moving contact is fixed to the armature assembly and extends along the Z-axis direction, and is driven by the armature assembly to contact or move away from the two auxiliary static contacts to make the two auxiliary static contacts conductive or disconnected.

[0006] Based on Technical Solution 1, there is also Technical Solution 2. In Technical Solution 2 and its related embodiments, the auxiliary static contact is suitable for deformation along the X-axis direction.

[0007] Based on Technical Solution 2, Technical Solution 3 is also provided. In Technical Solution 3 and its related embodiments, the extension direction of the auxiliary contact portion is parallel to the Y-axis direction; on the projection surface perpendicular to the Z-axis direction, the projection of one auxiliary static contact member covers the projection of another auxiliary static contact member.

[0008] Based on Technical Solution 2, Technical Solution 4 is also provided. In Technical Solution 4 and its related embodiments, the auxiliary dynamic contact is provided with a first contact surface suitable for abutting the auxiliary contact portion, and the first contact surface is arc-shaped; the auxiliary contact portion is provided with a second contact surface perpendicular to the X-axis direction.

[0009] Based on technical solution four, technical solution five is also provided. In technical solution five and its related embodiments, the auxiliary dynamic contact is cylindrical, and is integrally injection molded, screwed or interference-fitted with the armature assembly insert; the second contact surface extends along the Y-axis direction.

[0010] Technical solution six and its related embodiments provide a swing-type magnetic latching relay, comprising the magnetic circuit part and auxiliary contact part described in any one of technical solutions one to five.

[0011] Based on technical solution six, there is also a technical solution seven. Technical solution seven and its related embodiments further include an accommodating part and a contact part; the magnetic circuit part includes a coil assembly and an armature assembly, the coil assembly is fixedly connected to the accommodating part and is provided with a coil winding and two magnetic drive ends arranged along the Y axis, the armature assembly is driven by the two magnetic drive ends to rotate relative to the coil assembly around a rotation axis extending along the Z axis direction, and the armature assembly is provided with a driving part and an auxiliary pushing part; the contact part includes at least one moving contact group and at least one static contact, the moving contact group is provided with a moving contact, the static contact is provided with a static contact, and the moving contact group is suitable for being driven by the driving part to make the moving contact closed or disconnected with the static contact along the X axis direction; the auxiliary moving contact is fixedly connected to the auxiliary pushing part, and the auxiliary static contact is fixedly connected to the accommodating part; the auxiliary moving contact is suitable for being driven by the auxiliary pushing part to resist or move away from the two auxiliary static contacts to make the two auxiliary static contacts conductive or disconnected.

[0012] Based on Technical Solution 7, Technical Solution 8 is also provided. In Technical Solution 8 and its related embodiments, the accommodating part is provided with a limiting part toward the auxiliary contact part, and the limiting part is suitable for abutting the two auxiliary contact parts to limit the distance that the two auxiliary contact parts move toward the direction close to the auxiliary moving contact part.

[0013] Based on Technical Solution Eight, Technical Solution Nine is also provided. In Technical Solution Nine and its related embodiments, the accommodating part is also provided with a first side wall perpendicular to the X-axis direction and close to the auxiliary pushing part and a fixed seat fixed to the first side wall. The auxiliary static contact part is provided with a rigid part inserted into the fixed seat, the rigid part is provided with the lead-out terminal, and the auxiliary contact part is connected to the rigid part as a whole.

[0014] Based on technical solution nine, there is also a technical solution ten. In technical solution ten and its related embodiments, the two rigid parts are connected as one by insert injection molding.

[0015] Based on any one of technical solutions seven to ten, a technical solution eleven is also provided. In technical solution eleven and its related embodiments, the two magnetic drive ends are located between the rotation axis and the axis of the coil winding along the X-axis direction; the auxiliary pushing portion is located on the side of the armature assembly close to the coil winding.

[0016] Based on technical solution eleven, technical solution twelve is also provided. In technical solution twelve and its related embodiments, the axis of the coil winding extends along the Y-axis direction, and the rotation axis of the armature assembly and the axis of the coil winding are arranged along the X-axis direction; the auxiliary pushing portion and the coil group are arranged along the Z-axis direction, and on the projection plane perpendicular to the Z-axis direction, the auxiliary pushing portion and the coil winding at least partially overlap.

[0017] Based on technical solution 12, technical solution 13 is also provided. In technical solution 13 and its related embodiments, the auxiliary pushing portion is arranged away from the center of the armature assembly along the Y-axis direction, and is located in the middle of the armature assembly along the Z-axis direction; the two auxiliary contact portions are suitable for respectively interfering with the auxiliary dynamic contact pieces extending out of the two sides of the auxiliary pushing portion along the Z-axis direction.

[0018] Based on Technical Solution 12, Technical Solution 14 is also provided. In Technical Solution 14 and its related embodiments, the two magnetic drive ends and the coil winding are arranged along the Z-axis direction; on the projection plane perpendicular to the X-axis direction, the projection of the coil winding and the projection of the contact part at least partially overlap; the auxiliary pushing part is close to the magnetic drive end and away from the contact part.

[0019] Based on technical solution fourteen, technical solution fifteen is also provided. In technical solution fifteen and its related embodiments, on the projection plane perpendicular to the Z-axis direction, the coil winding covers the magnetic drive end.

[0020] Based on technical solution fifteen, technical solution sixteen is also provided. In technical solution sixteen and its related embodiments, on a projection plane perpendicular to the Z-axis direction, the projection of the coil winding and the projection of the contact part are arranged along the X-axis direction, and the projection of the armature assembly and the contact part at least partially overlap.

[0021] Based on technical solution sixteen, technical solution seventeen is also provided. In technical solution seventeen and its related embodiments, the accommodating member is provided with a contact chamber, the contact portion is accommodated in the contact chamber, and the coil winding is located outside the contact chamber.

[0022] Based on Technical Solution 17, there is also Technical Solution 18. In Technical Solution 18 and its related embodiments, the accommodating part is provided with a bottom wall perpendicular to the Z-axis direction and close to the contact portion, the coil assembly further includes a signal terminal electrically connected to the coil winding, the contact portion is further provided with a connecting terminal, and the signal terminal, connecting terminal, and lead-out terminal all pass through the bottom wall and extend out of the accommodating part. From the above description of the present invention and its preferred embodiments, it can be seen that, compared with the prior art, the technical solution and its preferred embodiments of the present invention have the following beneficial effects due to the adoption of the following technical means:

[0023] After continuous observation, experimentation and research, the applicant knows that the reason why the technical problem of "the magnetic latching relay including the auxiliary switch is large in size" in the existing technical solution is that the auxiliary switch can only be installed on both sides of the armature assembly along the magnetic pole direction of its permanent magnet. If the auxiliary switch is a standard microswitch component, since the standard microswitch component has a standard size and a relatively large volume, it cannot adapt well to the limited space on both sides of the armature assembly; if the auxiliary switch adopts a matching structure of a moving reed and a static reed, since the closing and opening of the moving reed and the static reed require deformation space, it cannot adapt well to the limited space on both sides of the armature assembly. Therefore, the space of the accommodating component can only be increased to install the auxiliary switch.

[0024] In technical solution 1 and its related embodiments, in the auxiliary contact part (i.e., the auxiliary switch), the auxiliary movable contact extends along the Z-axis direction, and each auxiliary static contact is provided with an auxiliary contact portion extending perpendicular to the X-axis direction. The two auxiliary contact portions are arranged at intervals along the Z-axis direction. The entire auxiliary contact part mainly occupies space in the Z-axis direction and occupies little space in the X-axis direction. In this way, the auxiliary movable contact can be fixed to the armature assembly so that the auxiliary movable contact moves with the armature assembly, and the extension direction of the auxiliary movable contact is set to be parallel to the rotation axis of the armature assembly, so that the entire auxiliary contact part occupies a smaller size on both sides of the armature assembly. The maximum size occupied is only the distance between the auxiliary movable contact and the auxiliary static contact when they are disconnected, and the space occupancy is small. Therefore, as long as the auxiliary contact part can avoid the coil assembly or the push card, the auxiliary contact part can be easily installed in the limited space on both sides of the armature assembly without increasing the volume of the accommodating part. In addition, the auxiliary contact part in this technical solution occupies less space than the standard micro switch part, and the position of the terminal of the auxiliary contact part can be adjusted as needed, and the structural design is simpler.

[0025] In technical solution two and its preferred embodiment, the auxiliary static contact is suitable for deformation along the X-axis direction, and the tangential component of the force along the X-axis transmitted to the auxiliary moving contact by the armature assembly is large, which can give the auxiliary moving contact and the auxiliary contact part a certain contact pressure. In other words, by designing the position of the auxiliary static contact, when the armature assembly is rotated into place, the auxiliary moving contact abuts against the auxiliary contact part, causing the auxiliary static contact to form an appropriate deformation, which is conducive to obtaining a more stable contact relationship after conduction and higher connection reliability.

[0026] In technical solution three and its preferred embodiment, the auxiliary contact portion extends in a direction parallel to the Y-axis. Compared to a solution in which the auxiliary contact portion extends in the Z-axis direction, this avoids occupying too much space in the Z-axis direction and prevents the auxiliary static contact from forming an angle with the auxiliary moving contact when the auxiliary moving contact abuts against two auxiliary contact portions, thereby preventing reliable connection. In addition, when the auxiliary contact portion extends in the Y-axis direction, it is perpendicular to the extension direction of the auxiliary moving contact. Therefore, even if the auxiliary contact portion deforms during the rotation of the auxiliary moving contact, the auxiliary contact portion and the auxiliary moving contact can have the same contact area, thereby not affecting the contact reliability between the auxiliary moving contact and the auxiliary contact portion. On a projection plane perpendicular to the Z-axis direction, the projection of one auxiliary static contact overlaps the projection of the other auxiliary static contact, that is, the two auxiliary static contacts are not offset from each other along the X-axis direction, thereby further saving space and facilitating miniaturization of the relay.

[0027] In technical solution four and its preferred embodiments, each auxiliary dynamic contact is provided with a first contact surface suitable for abutting the auxiliary contact portion, the first contact surface is arc-shaped, and the auxiliary contact portion is provided with a second contact surface parallel to the Z-axis direction. When the first contact surface and the second contact surface are in contact, it is line contact, the contact area is larger than that of point contact, and the contact stability is reliable.

[0028] In Technical Solution 5 and its preferred embodiment, the auxiliary movable contact is cylindrical, offering a simple structure, occupying minimal space in a plane perpendicular to the Z-axis, and facilitating secure connection with the armature assembly. The second contact surface extends along the Y-axis, perpendicular to the extension direction of the auxiliary movable contact. Therefore, even if the auxiliary contact portion deforms during rotation, the auxiliary movable contact maintains the same contact area with the auxiliary movable contact, thus preserving contact reliability between the auxiliary movable contact and the auxiliary contact portion.

[0029] Technical solutions six and seven and their preferred embodiments have the technical advantages of any one of technical solutions one to five.

[0030] In technical solution eight and its preferred embodiment, the limiting portion is suitable for abutting against the two auxiliary contact pieces to limit the distance that the two auxiliary contact pieces move toward the auxiliary moving contact piece, which can avoid excessive deformation and fatigue damage of the auxiliary contact piece due to adhesion when the auxiliary moving contact piece is disconnected from the auxiliary contact piece, avoid disconnection failure between the auxiliary contact piece and the auxiliary moving contact piece, and improve the disconnection stability.

[0031] In technical solution nine and its preferred embodiment, the fixing seat is fixed to the first side wall, which is easy to process and has a stable structure; the rigid part is provided with a lead terminal, and the auxiliary contact part is connected to the rigid part as an integral whole, which is conducive to ensuring that the two auxiliary contact parts are located on the same plane, thereby improving the connection reliability.

[0032] In technical solution ten and its preferred embodiment, the two rigid parts are connected as one by insert injection molding, and the two rigid parts can be installed synchronously, which is conducive to reducing the installation error caused by independent installation of each other, improving the accuracy of the relative position of the two rigid parts, and further ensuring that the two auxiliary contact parts are located on the same plane, thereby further improving the connection reliability between the auxiliary moving contact and the two auxiliary static contacts.

[0033] In technical solution eleven and its preferred embodiment, the two magnetic drive ends are both located between the axis of rotation and the axis of the coil winding along the X-axis direction, and the auxiliary push part is located on the side of the armature assembly close to the coil winding. Compared with the solution in which the axis of rotation is centered between the two magnetic drive ends along the X-axis direction, the tangential component of force along the X-axis transmitted to the auxiliary push part by the armature assembly is larger, which can give the auxiliary dynamic contact and the auxiliary contact part a greater contact pressure, higher stability after conduction, and higher connection reliability.

[0034] In technical solution 12 and its preferred embodiment, the axis of the coil winding extends along the Y-axis direction, and the rotation axis of the armature assembly and the axis of the coil winding are arranged along the X-axis direction, so that the coil winding occupies less space along the X-axis direction and the Z-axis direction, which can further save space; the auxiliary pushing portion and the coil assembly are arranged along the Z-axis direction, and on the projection surface perpendicular to the Z-axis direction, the auxiliary pushing portion and the coil winding at least partially overlap, making full use of the space of the coil winding on one side of the Z-axis direction, improving space utilization, and compared with the solution in which the coil winding and the auxiliary pushing portion are respectively located on both sides of the armature assembly along the X-axis direction, the relay occupies less space in the X-axis direction.

[0035] In technical solution thirteen and its preferred embodiment, the auxiliary push portion is arranged offset from the center of the armature assembly along the Y-axis direction. Thus, compared to the solution in which the auxiliary push portion is arranged at the center of the armature assembly along the Y-axis direction, when the armature assembly rotates, the movement stroke of the auxiliary push portion and the auxiliary movable contact is greater, thereby facilitating the reliable disconnection of the auxiliary movable contact and the auxiliary static contact. The auxiliary push portion is located in the middle of the armature assembly along the Z-axis direction, and the space occupied in the Z-axis direction is covered within the armature assembly without occupying any other excess space, thus saving space and facilitating further miniaturization of the relay. The two auxiliary contact portions are adapted to respectively interfere with the two sides of the auxiliary movable contact extending out of the auxiliary push portion along the Z-axis direction. The two are relatively far apart, and the possibility of interference with each other is small.

[0036] In technical solution fourteen and its preferred embodiment, the two magnetic drive ends and the coil winding are arranged along the Z-axis direction. On the projection plane perpendicular to the X-axis direction, the projection of the coil winding and the projection of the contact part at least partially overlap. On the one hand, space is left on the side of the coil winding close to the magnetic drive end along the Z-axis direction for installing the above-mentioned auxiliary pushing part, thereby improving space utilization; on the other hand, the two magnetic drive ends are moved away from the contact part along the Z-axis direction, so that the strong and weak current parts are separated farther in space, making it easier to meet the electrical isolation and creepage distance requirements.

[0037] In technical solution fifteen and its preferred embodiment, on the projection plane perpendicular to the Z-axis direction, the coil winding covers the magnetic drive end, and the coil assembly occupies a small space in the X-axis direction, further reducing the length of the accommodating part along the X-axis direction. In addition, the magnetic drive end is further away from the contact part, improving the electrical isolation problem.

[0038] Technical solution sixteen and its preferred embodiment, on the projection surface perpendicular to the Z-axis direction, the projection of the coil winding and the projection of the contact part are arranged along the X-axis direction, the projection of the armature assembly and the contact part at least partially overlap, and the auxiliary pushing part is close to the magnetic driving part and away from the contact part, so that the relay as a whole has a small occupied area on the projection surface perpendicular to the Z-axis direction, that is, the relay has a small occupied area in the X-axis direction and the Y-axis direction, and the relay also has a small occupied area on the projection surface perpendicular to the X-axis direction, that is, the relay has a small occupied area in the Y-axis direction and the Z-axis direction. Therefore, it can effectively solve the problem of the relay being connected to the P along the Z-axis direction. The problem of large board area occupied when the relay is mounted on the CB board is solved. At the same time, the height along the Z-axis direction is small, and the projection of the coil winding and the projection of the contact part are arranged along the X-axis direction, which increases the creepage distance between the coil winding and the contact part. The electrical distance between the weak current contact terminal of the magnetic circuit part and the strong current contact terminal of the contact part can be maintained within a large range through reasonable layout, improving the electrical isolation problem. As a result, when the relay and PCB are matched along the Z-axis direction, the PCB board area is small, the height is small, and the electrical isolation distance between the strong and weak current contact terminals is large; thus, the relay does not need to be connected to the PCB board along the X-axis or Y-axis direction.

[0039] In technical solution seventeen and its preferred embodiment, the contact part is accommodated in the contact chamber, and the coil winding is located outside the contact chamber, which further increases the creepage distance between the coil winding and the contact part and improves the electrical isolation problem.

[0040] In Technical Solution 18 and its preferred embodiment, the signal terminals, connecting terminals, and lead terminals all extend through the bottom wall and out of the accommodating member, facilitating the coordinated use of the bottom wall of the relay with the PCB. Furthermore, the signal terminals and lead terminals do not need to be bent to avoid the armature assembly, making them less susceptible to damage. Since the coil windings and contact portions are arranged along the X-axis, the signal terminals and connecting terminals are staggered along the X-axis on the bottom wall. Since the signal terminals are located on one or both sides of the coil windings along the Y-axis, the signal terminals and lead terminals are staggered along the Y-axis. Consequently, the staggered arrangement of the signal terminals, connecting terminals, and lead terminals on the bottom wall further meets electrical isolation and creepage distance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 This is a three-dimensional exploded view of the swing-type magnetic latching relay of Example 1 of the present application;

[0043] Figure 2 Schematic diagram of a swing-type magnetic latching relay according to Example 1 of the present application;

[0044] Figure 3 This is a three-dimensional schematic diagram of the housing of Example 1 of the present application viewed from the first end;

[0045] Figure 4 A top view of the housing of Example 1 of the present application;

[0046] Figure 5 This is a perspective schematic diagram of the housing of Example 1 of the present application viewed from the second end;

[0047] Figure 6 A bottom view of the housing of Example 2 of the present application;

[0048] Figure 7 A bottom view of Example 1 of the present application;

[0049] Figure 8 A schematic diagram showing a first cover hidden in the swing-type magnetic latching relay according to Example 1 of the present application;

[0050] Figure 9 This is a three-dimensional schematic diagram of the coil assembly of Example 1 of the present application;

[0051] Figure 10 A top view of the coil assembly according to Example 1 of the present application;

[0052] Figure 11 A three-dimensional diagram of the armature assembly of Example 1 of the present application, which is assembled with an elastic member group and an auxiliary movable contact member Figure 1 :

[0053] Figure 12 A three-dimensional diagram of the armature assembly of Example 1 of the present application, which is assembled with an elastic member group and an auxiliary movable contact member Figure 2 ;

[0054] Figure 13 Based Figure 11 3D exploded view of

[0055] Figure 14 for Figure 11 A top view of

[0056] Figure 15 for Figure 14 Cross-sectional view in the AA direction;

[0057] Figure 16 for Figure 14 Cross-sectional view in the BB direction;

[0058] Figure 17 for Figure 14 Cross-sectional view in CC direction;

[0059] Figure 18 A schematic diagram showing the second cover of the swing-type magnetic latching relay according to Example 1 of the present application;

[0060] Figure 19 This is a three-dimensional schematic diagram of a contact portion of Example 1 of the present application hiding one of the static contacts;

[0061] Figure 20 This is an exploded schematic diagram of the armature assembly and the elastic member group of Example 1 of the present application;

[0062] Figure 21 A top view of the swing-type magnetic latching relay according to Example 1 of the present application, with the first cover and the fixing frame hidden;

[0063] Figure 22 for Figure 21 A cross-sectional view taken along the AA direction when the first cover and the fixing frame are provided;

[0064] Figure 23 for Figure 21 A cross-sectional view in the BB direction with the first cover and the fixing frame;

[0065] Figure 24 for Figure 22 Cross-sectional view in CC direction;

[0066] Figure 25 Schematic diagram of the armature assembly in the first position of Example 1 of the present application Figure 1 :

[0067] Figure 26 Schematic diagram of the armature assembly in the first position of Example 1 of the present application Figure 2 :

[0068] Figure 27 Schematic diagram of the armature assembly in the second position of Example 1 of the present application Figure 1 :

[0069] Figure 28 Schematic diagram of the armature assembly in the second position of Example 1 of the present application Figure 2 :

[0070] Figure 29 This is a schematic diagram of the auxiliary static contact and the fixing seat of Example 2 of the present application.

[0071] Description of main reference numerals:

[0072] Container 10; housing 11; first side wall 111; second side wall 112; first partition 113; communicating hole 1131; first isolation plate 114; mounting base 115; first opening 1151; reinforcing wall 116; avoidance opening 1161; second opening 1162; matching groove 117; clearance opening 118; fixing base 119; first cover 12; second cover 13; bottom wall 131; supporting surface 1311; second isolation plate 132; fixing bracket 14; limit portion 141; abutting portion 142; contact chamber 001; magnetic circuit portion 100; coil assembly 20; coil frame 21; coil winding 22; iron core 23; yoke 24; connecting section 241; magnetic drive end 242; first magnetic drive end 243; second magnetic drive end 244; signal terminal 01; armature assembly 30; permanent magnet 31; armature 32; first engaging portion 321; second engaging portion 322; insulating member 33; rotating hole 331; rotating shaft 332; driving portion 34; body 341; first through hole 3411; first opening 3412; second opening 3413; first supporting wall 3414; second supporting wall 3415; third opening 3416; pressing plate 342; auxiliary pushing portion 35; contact portion 200; static contact 40; static contact point 41; first static contact point 42; second static contact point 43; third static contact point 44; fourth static contact point 45; connecting terminal 02; movable contact 50; movable spring 51; movable contact point 52; first bending portion 53; second bending portion 54; first moving contact 55; second moving contact 56; elastic member group 60; elastic arm 61; connecting portion 62; first elastic member 63; third connecting wall 631; second elastic member 64; fourth connecting wall 641; fifth connecting wall 642; first connecting wall 65; second connecting wall 66; auxiliary contact portion 300; auxiliary moving contact 70; auxiliary static contact 80; rigid portion 81; rigid section 811; auxiliary contact portion 82; lead-out terminal 03. DETAILED DESCRIPTION

[0073] In the claims and the specification, except in the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" simply refer to the fact that features having one of these directions are perpendicular to features having another direction, and do not require that they be implemented in accordance with the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. The X-axis direction can be divided into left and right, the Y-axis direction can be divided into front and back, and the Z-axis direction can be divided into up and down.

[0074] In the claims and the description, unless otherwise defined, the terms "first", "second" or "third", etc. are intended to distinguish different objects rather than to describe a specific order.

[0075] In the claims and the specification, unless otherwise specified, the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are based on the directions and positional relationships shown in the accompanying drawings and are only for the convenience of simplifying the description, and do not imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction.

[0076] In the claims and description, unless otherwise specified, the term "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two parties, that is, including non-detachable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements.

[0077] In the claims and the description, unless otherwise defined, the terms "include", "have" and their variations mean "including but not limited to".

[0078] In the claims and the description, unless otherwise defined, the term "provided with" means that the technical feature thereafter is part of the technical feature therefor.

[0079] In the claims and the specification, unless otherwise defined, the term "support" means that the weight of an object will act on another object.

[0080] In the claims and the specification, unless otherwise defined, the term “connected as one body” means that two parts are directly connected without any other parts between them.

[0081] In the claims and the specification, unless otherwise defined, the term "extension direction" refers to the length direction of the object, including portions of the object that are bent or inclined in the length direction.

[0082] The technical solutions in the embodiments will be described clearly and completely below with reference to the accompanying drawings.

[0083] Example 1

[0084] See also Figure 1-2 , Figure 1-2 A swing type magnetic latching relay is shown, which includes an accommodating member 10 , a magnetic circuit portion 100 , a contact portion 200 and an auxiliary contact portion 300 .

[0085] A relay is used to receive electrical signals to control the on / off switching of an external circuit. Specifically, the relay in this embodiment is a swing-type magnetic latching relay, which controls the on / off switching of an external circuit by receiving pulsed electrical signals. In this embodiment, the pulsed electrical signals can be divided into a first pulsed electrical signal and a second pulsed electrical signal. The first pulsed electrical signal and the second pulsed electrical signal are used to control the switching or on / off switching of the external circuit, respectively.

[0086] See also Figure 1-2 , Figure 1-2 The structure of the swing type magnetic latching relay in this embodiment is shown in FIG. Figure 1 As shown, the relay includes an accommodating member 10 , a magnetic circuit portion 100 , a contact portion 200 and an auxiliary contact portion 300 .

[0087] The accommodating member 10 includes a housing 11 , a first cover 12 , a second cover 13 and a fixing frame 14 .

[0088] Figure 3-6 The structure of the housing 11 in this embodiment is shown in FIG. Figure 3-6 The first end and the second end of the shell 11 along the Z-axis direction are both open, wherein the first end is the upper end of the shell 11, and the second end is the lower end of the shell 11. The shell 11 is provided with a first side wall 111 and a second side wall 112 parallel to and opposite to each other along the X-axis direction, wherein a first partition plate 113 perpendicular to the Z-axis direction and a first isolation plate 114 perpendicular to the X-axis direction are provided therein, the first isolation plate 114 and the first partition plate 113 cooperate with the second side wall 112 to form a first groove opening toward the second end, and a connecting hole 1131 is respectively provided at both ends of the first partition plate 113 along the Y-axis direction; the inner cavity of the first groove is a rectangular parallelepiped structure, and four matching grooves 117 extending along the Z-axis direction are respectively formed at its four vertex corners. Two mating grooves 117, which are arranged in opposite directions along the X-axis, are provided with mutually opposing clearance openings 118. Two communication holes 1131 are located between the four mating grooves 117 along the X-axis. Two mounting seats 115, spaced apart along the Y-axis, and a reinforcing wall 116, perpendicular to the Z-axis, are provided within the housing 11, near the first sidewall 111. The mounting seats 115 are provided with mounting grooves opening toward the second end. A first opening 1151 is provided on the opposing side of the two mounting seats 115. The reinforcing wall 116 is provided with clearance openings 1161, which are respectively connected to the two first openings 1151. The reinforcing wall 116 is also provided with a second opening 1162, which is located near the first sidewall 111. The housing 11 also includes a fixing seat 119, which is integrally connected to the reinforcing wall 116 and the first sidewall 111.

[0089] See also Figure 1-2 The first cover 12 is fixedly connected to the outer wall of the first end of the shell 11. In this embodiment, the first cover 12 is first clamped to the outer ends of the first side wall 111 and the second side wall 112 and then fixed by glue.

[0090] The second cover 13 is fixedly connected to the second end of the housing 11. In this embodiment, the second cover 13 and the second end of the housing 11 are first clamped and then fixed by glue. Figure 1 The second cover 13 includes a bottom wall 131 perpendicular to the Z-axis direction and a second isolation plate 132 protruding from the inner surface of the bottom wall 131 along the Z-axis direction. Figure 7 , Figure 7 The bottom view of the swing type magnetic latching relay is shown. The bottom wall 131 is provided with a plurality of through holes for the connection terminal 02, the signal terminal 01 and the lead terminal 03 described below to pass through and extend out. Figure 7 Holes 1, 2, 3, and 4 are for signal terminals 01 of coil assembly 20 to pass through, holes 5, 6, 7, and 8 are for connection terminals 02 of contact portion 200 to pass through, and holes 9 and 10 are for lead terminals 03 of auxiliary contact portion 300 to pass through. Bottom wall 131 cooperates with the first groove of housing 11 to form contact chamber 001 for accommodating contact portion 200 and cooperates with housing 11 to limit displacement of coil assembly 20 along the Z-axis. A support surface 1311 is protruded from the bottom wall 131, and the support surface 1311 is suitable for abutting against the end surface of the second end of the shell 11 or the step surface perpendicular to the Z-axis direction formed in the shell 11. The second isolation plate 132 protrudes from the support surface 1311 and forms a second groove on the first side wall 111 of the opening. When the second cover body 13 is fixed to the shell 11, the second isolation plate 132 abuts against the first isolation plate 114 along the X-axis direction and against the inner surfaces of the two side walls opposite to the shell 11 along the Y-axis, so that the second isolation plate 132 abuts against the inner wall of the shell 11 along the X-axis direction and the Y-axis direction.

[0091] See also Figure 1 The fixing bracket 14 is fixedly attached to the housing 11. Specifically, it is supported within the housing 11 by being positionally connected to the housing 11 along the X-axis and Y-axis directions. Subsequently, when the first cover 12 is fixedly attached to the outer wall of the first end of the housing 11, it is positionally engaged with the housing 11 and the first cover 12 along the Z-axis direction. The fixing bracket 14 and the first partition 113 are opposed to each other and extend toward each other to form a protruding shaft that rotatably engages with the rotation hole 331 of the armature assembly 30 described below. The fixing bracket 14 is further provided with a position-limiting portion 141 and an abutting portion 142 on a side near the first sidewall 111.

[0092] See also Figure 8 , Figure 8 The magnetic circuit portion 100 is shown as a schematic diagram of the magnetic circuit portion 100 installed in the container 10, and the magnetic circuit portion 100 includes a coil assembly 20 (refer to Figure 9 ) and armature assembly 30.

[0093] See also Figure 9-10 , Figure 9-10The schematic diagram of the coil assembly 20 is shown. The coil assembly 20 includes a coil frame 21, a coil winding 22, an iron core 23 and two yokes 24. The coil frame 21 extends along the Y-axis direction and is provided with a center hole extending along the Y-axis direction. The coil frame 21 is provided with retaining walls at both ends along the Y-axis direction. The coil winding 22 is wound on the coil frame 21 and is located between the two retaining walls. Therefore, the axis of the coil winding 22 also extends along the Y-axis direction. The coil winding 22 is connected to the signal terminal 01. The signal terminal 01 is fixed to the retaining wall of the coil frame 21 and passes through the bottom wall 131 along the Z-axis direction and extends out from the bottom wall 131 (see Figure 2 and Figure 7 ). The iron core 23 extends along the Y-axis direction and is inserted into the center hole of the coil frame 21. The two yokes 24 are respectively fixed to the two ends of the iron core 23, and the ends of the two yokes 24 away from the iron core 23 respectively form magnetic drive ends 242. The two magnetic drive ends 242 are arranged along the Y-axis direction, and the two magnetic drive ends 242 are respectively a first magnetic drive end 243 and a second magnetic drive end 244. In this embodiment, each yoke 24 is provided with a connecting section 241 extending along the Z-axis direction and perpendicular to the Y-axis direction and a magnetic drive end 242 perpendicular to the X-axis direction. The two connecting sections 241 are tightly fitted with the retaining walls at both ends of the coil frame 21, and the magnetic drive end 242 is connected to one side of the connecting section 241 along the X-axis direction and the length along the Z-axis direction is less than the length of the connecting section 241 along the Z-axis direction, so that the two magnetic drive ends 242 and the coil winding 22 are arranged along the Z-axis direction. Figure 10 In the projection plane perpendicular to the Z-axis direction, the projection of the coil winding 22 covers the projection of the magnetic drive end 242. The end of the connecting section 241 close to the magnetic drive end 242 is suitable for being inserted into the mounting groove described above, and the magnetic drive end 242 is suitable for extending from the first opening 3412, so that the two mounting seats 115 of the shell 11 can limit the yoke 24 in the X-axis direction and the Y-axis direction. Of course, in this embodiment, in addition to the mounting seat 115, the coil frame 21 and the yoke 24 are also provided with other limiting structures that are tightly plugged into the accommodating part 10 along the Z-axis direction. The limiting structure is preferably also connected to the accommodating part 10 in the form of glue, so that the coil assembly 20 is fixed to the accommodating part 10.

[0094] See also Figure 11-17 , Figure 11-17 The structure of the armature assembly 30 is shown. The armature assembly 30 is driven by the coil assembly 20 to rotate about a rotation axis extending along the Z-axis. In this embodiment, the armature assembly 30 rotates between a first position and a second position. The rotation axis of the armature assembly 30 and the axis of the coil winding 22 are arranged along the X-axis.

[0095] like Figure 11-17 As shown, in this embodiment, the armature assembly 30 includes a permanent magnet 31 ( Figure 22), two armatures 32 and an insulating member 33, the permanent magnet member 31 is formed of magnetized magnetic steel. In other embodiments, the permanent magnet member 31 can also be made of other permanent magnetic materials, such as neodymium iron boron permanent magnets. The permanent magnet member 31 has two magnetic poles with fixed polarity, and the polarities of the two magnetic poles are opposite. The two armatures 32 are respectively fixed to the two magnetic poles of the permanent magnet member 31, and each armature 32 is respectively provided with two suction parts suitable for being attracted to the magnetic drive end 242. When the magnetic circuit part 100 is in the magnetic holding state, the two armatures 32 respectively have a suction part that attracts the corresponding magnetic drive end 242 to form a closed magnetic circuit passing through the two magnetic drive ends 242. In this embodiment, the two armatures 32 are respectively a first armature 32 and a second armature 32. The two ends of the first armature 32 in the length direction are respectively provided with two first suction parts 321; the two ends of the second armature 32 in the length direction are respectively provided with two second suction parts 322.

[0096] The insulating part 33 is fixedly connected to the permanent magnet part 31 and the two armatures 32. For example, the insulating part 33 can be an injection molded part. The insulating part 33 wraps the two armatures 32 and the permanent magnet part 31 to form a whole. Both ends of the first armature 32 and the second armature 32 are located outside the insulating part 33.

[0097] A rotation hole 331 extending along the Z-axis is provided on the side of the insulating member 33 away from the magnetic drive end 242. This rotation hole 331 can rotatably engage with the protruding shafts on the fixing frame 14 and the first partition 113, enabling the armature assembly 30 to rotatably engage with the first partition 113 and the fixing frame 14. Driving portions 34 extending along the Z-axis and adapted to extend through the two connecting holes 1131 are also provided at both ends of the insulating member 33 along the length. The two driving portions 34 are also located at opposite ends of the armature assembly 30 along the Y-axis. An auxiliary driving portion 35 is provided on the side of the insulating member 33 away from the rotation axis. The auxiliary driving portion 35 is offset from the center of the armature assembly 30 along the Y-axis and located in the middle of the armature assembly 30 along the Z-axis. The driving portion 34 and the rotation axis of the armature assembly 30 are arranged perpendicular to the polarity of the permanent magnet 31. Figure 11 In the embodiment, the armature 32 closer to the rotating hole 331 along the X-axis direction is the first armature 32 , and the armature 32 farther from the rotating hole 331 is the second armature 32 .

[0098] See also Figure 13-17In this embodiment, the driving portion 34 includes a main body 341 and a pressure plate 342. The main body 341 is provided with a first through hole 3411 passing through along the Z-axis direction. The two ends of the first through hole 3411 are respectively provided with a first opening 3412 facing the bottom wall 131 and a second opening 3413 away from the bottom wall 131, that is, the first opening 3412 and the second opening 3413 are respectively provided at the lower end and the upper end of the first through hole 3411. The area of the second opening 3413 is larger than that of the first opening 3412. Two first supporting walls 3414 and a second supporting wall 3415 are provided in the first through hole 3411 near the second opening 3413, which are arranged at intervals along the Y-axis direction and perpendicular to the Z-axis direction. Gaps are formed between the first supporting wall 3414 and the second supporting wall 3415 and the hole wall of the first through hole 3411 on both sides along the X-axis direction. The pressing plate 342 is fixedly connected to the body 341, for example, it can extend from the second opening 3413 into the first through hole 3411 and be fixedly engaged with the inner wall of the first through hole 3411. Figure 12 The two driving parts 34 are further provided with a third opening 3416 at one end thereof, adjacent to the first opening 3412, facing each other and communicating with the first through hole 3411. It should be understood that in other embodiments, the pressure plate 342 may not be provided, but a buckle may be provided. The buckle may be an elastic buckle, with one end of the buckle head spaced apart from the first supporting wall 3414 and the second supporting wall 3415.

[0099] See also Figure 18 , Figure 18 A schematic diagram shows the contact portion 200 accommodated in the housing 11. The contact portion 200 is accommodated in the contact chamber 001. The contact portion 200 includes at least one moving contact group and at least one static contact 40. The moving contact group is provided with a moving contact 52, and the static contact 40 is provided with a static contact 41. The moving contact group extends along the Y-axis direction or forms an angle relative to the Y-axis direction, and is suitable for being directly driven by the driving part 34 to close or disconnect the moving contact 52 with the static contact 41 along the X-axis direction.

[0100] Specifically, the contact portion 200 includes four static contacts 40 and two groups of dynamic contacts. Each static contact 40 is provided with two static contacts 41 arranged along the Z-axis and a connection terminal 02 extending through the bottom wall 131 and out of the accommodating member 10. The four static contacts 40 are respectively engaged with and fixed by adhesive in four mating grooves 117 within the contact chamber 001, and the static contacts 41 extend out of the mating grooves 117 through the clearance opening 118. The projections of the static contacts 41 of each static contact 40 on a projection plane perpendicular to the Z-axis completely overlap. Of course, the number of static contacts 41 can be increased. Therefore, the static contacts 41 of the four static contacts 40 are located at the four vertices of a rectangle, the sides of which extend along the X-axis and the Y-axis, respectively. The four stationary contacts 41 on the stationary contact members 40 are respectively a first stationary contact 42, a second stationary contact 43, a third stationary contact 44, and a fourth stationary contact 45. The first stationary contact 42 and the second stationary contact 43 are arranged along the Y-axis and located on the same side of the rectangle. The third stationary contact 44 and the fourth stationary contact 45 are arranged along the Y-axis and located on the same side of the rectangle. The second stationary contact 43 and the fourth stationary contact 45 are located on the diagonals of the rectangle. Of course, in other embodiments, when the four mating slots 117 are arranged in a common quadrilateral or parallelogram shape, the four stationary contacts 41 are also located at the four corners of the quadrilateral or parallelogram.

[0101] See also Figure 19 , Figure 19 A schematic diagram of the contact portion 200 is shown. Each moving contact group includes a moving contact 50 and an elastic member group 60. The extension direction of the moving contact 50 intersects with the Z-axis direction. In this embodiment, the extension direction of the moving contact 50 is perpendicular to the Z-axis direction. Each moving contact 50 is provided with a fixed end and a swinging end. In this embodiment, each moving contact 50 is provided with two moving springs 51 arranged along the Z-axis direction, the number of which is equal to the number of static contacts 41 on each static contact 40. In this embodiment, specifically, in the example provided by this embodiment, each moving contact 50 is provided with two moving springs 51, each moving spring 51 is provided with a fixed end and a swinging end, the fixed ends of each moving spring 51 are connected as a whole and form the fixed end of the moving contact 50, the swinging end of each moving spring 51 forms the swinging end of the moving contact 50, and two moving contacts 52 are provided on both sides of the swinging end of each moving spring 51 facing away from each other. See also Figure 18The fixed ends of the two moving contacts 50 are located at two vertices on the diagonal of the rectangle and are fixedly connected to the corresponding static contacts 40. The moving contact points 52 on both sides of the swinging ends of the two moving contacts 50 are respectively adapted to abut or move away from the static contact points 41 on the corresponding static contacts 40. In other words, the fixed ends of the two moving contacts 50 are respectively fixedly connected to two static contacts 40 located on the diagonals of the quadrilateral formed by the four static contacts 40. The swinging ends of the two moving contacts 50 are both located between the two groups of static contacts 40 along the X-axis. In actual application, the swinging ends of the two moving contacts 50 are adapted to be driven by the two driving units 34 to move in opposite directions.

[0102] In this embodiment, still refer to Figure 18 , the two moving contacts 50 are respectively a first moving contact 55 and a second moving contact 56, the fixed end and the swing end of the first moving contact 55 are respectively a first fixed end and a first swing end, the fixed end and the swing end of the second moving contact 56 are respectively a second fixed end and a second swing end; the first fixed end is fixedly connected to the second static contact 43, and the second fixed end is fixedly connected to the fourth static contact 45; the moving contacts 52 on both sides of the first swing end are respectively adapted to abut or move away from the first static contact 42 and the fourth static contact 45, and the moving contacts 52 on both sides of the second swing end are respectively adapted to abut or move away from the second static contact 43 and the third static contact 44; the armature assembly 30 is adapted to rotate between the first position and the second position, see Figure 26 In the first position, the movable contact 52 at the first swing end is closed with the fourth static contact 45, and the movable contact 52 at the second swing end is closed with the second static contact 43. At this time, the connection terminal 02 corresponding to the second static contact 43 and the connection terminal 02 corresponding to the fourth static contact 45 are connected in series through the first movable contact 55 and the second movable contact 56 and serve as one of the current input end and the current output end respectively. The first movable contact 55 and the second movable contact 56 are connected in parallel; see Figure 28 In the second position, the moving contact 52 at the first swing end is closed with the first moving contact 52, and the moving contact 52 at the second swing end is closed with the third static contact 44. At this time, the connection terminal 02 corresponding to the first static contact 42 is connected in series with the connection terminal 02 corresponding to the second static contact 43 through the first moving contact 55, and the connection terminal 02 corresponding to the third static contact 44 is connected in series with the connection terminal 02 corresponding to the fourth static contact 45. The connection terminal 02 corresponding to the first static contact 42 and the connection terminal 02 corresponding to the fourth static contact 45 are connected and together constitute one of the current input end or the current output end, and the connection terminal 02 corresponding to the second static contact 43 and the connection terminal 02 corresponding to the third static contact 44 are connected and together constitute the other of the current input end or the current output end.

[0103] Still see Figure 18 The movable contact 50 is provided with a bending portion protruding relative to the extending direction of the movable contact 50 , and the bending portion includes at least two first bending portions 53 and a second bending portion 54 with opposite bending directions.

[0104] See also Figure 19-20 , Figure 19 shows a schematic diagram of the contact portion 200, Figure 20 An exploded schematic diagram of the elastic member assembly 60 and the armature assembly 30 is shown. The elastic member assembly 60 is disposed between the movable contact 50 and the drive portion 34 and is adapted to deform perpendicularly to the Z-axis to provide an elastic force to the movable contact 50 toward the stationary contact 40 when the movable contact 52 and the stationary contact 41 contact. The elastic member assembly 60 includes an elastic portion extending along the Z-axis on each side of the movable contact 50, facing away from each other. The elastic member assembly 60 also includes a fixing portion connecting the two elastic portions. The first end of each elastic portion is housed within the drive portion 34, and the second end abuts the movable contact 50. The two elastic portions are configured to apply opposite elastic forces to the movable contact 50. Specifically, the contact reaction force between the movable contact 52 on one side of the movable contact 50 and the corresponding stationary contact 41 is provided by the elastic portion located on the opposite side of the movable contact 52. The fixing portion is integrally connected to the first ends of the two elastic portions and is fixedly connected to the drive portion 34. In this embodiment, the two elastic portions are symmetrically arranged about the swinging end along their elastic deformation direction. The position where the second end of the elastic portion contacts the swing end of the movable contact 50 is farther away from the fixed end than the contact position between the movable contact 50 and the stationary contact 40 .

[0105] In this embodiment, each elastic member group 60 includes an equal number of elastic members as the number of movable springs 51, and each elastic member has two elastic arms 61 that abut the corresponding movable spring 51 on opposite sides thereof, and a connecting portion 62 connecting the two elastic arms 61. The elastic arms 61 on the same side of the movable contact 50 form an elastic portion, and the connecting portions 62 form a fixed portion. The connecting portions 62 are spaced apart along the extension direction of the movable contact 50. In each elastic portion, the elastic arms 61 at least partially overlap in a projection perpendicular to the direction of elastic deformation.

[0106] The movable spring piece 51 of each movable contact 50 that is closest to the armature assembly 30 along the Z-axis direction is defined as the first movable spring piece 51, and the movable spring piece 51 that is farthest from the armature assembly 30 is defined as the second movable spring piece 51; the elastic member corresponding to the first movable spring piece 51 in the elastic member is defined as the first elastic member 63, and the elastic member corresponding to the second movable spring piece 51 is defined as the second elastic member 64, see Figure 20 The connecting portion 62 of the first elastic member 63 is provided with a third connecting wall 631 extending along the X-axis direction; the connecting portion 62 of the second elastic member 64 includes a fourth connecting wall 641 extending along the X-axis direction and fifth connecting walls 642 extending obliquely from both sides of the fourth connecting wall 641 along the X-axis direction relative to the Z-axis and Y-axis directions. The elastic arm 61 of the second elastic member 64 is integrally connected to the fifth connecting wall 642 on the same side. Figure 15-17The first elastic member 63 is adapted to be inserted into the first through-hole 3411 from the second opening 3413 until the third connecting wall 631 abuts the first supporting wall 3414 and the two elastic arms 61 are respectively inserted into the gap between the first supporting wall 3414 and the wall of the first through-hole 3411. The second elastic member 64 is adapted to be inserted into the first through-hole 3411 from the second opening 3413 until the fourth connecting wall 641 abuts the second supporting wall 3415 and the two fifth connecting walls 642 and the two elastic arms 61 are respectively inserted into the gap between the second supporting wall 3415 and the wall of the first through-hole 3411. The two elastic arms 61 of the first elastic member 63 are located between the two elastic arms 61 of the second elastic member 64 along the X-axis direction. The portion of the pressure plate 342 extending into the first through-hole 3411 is adapted to press against the third connecting wall 631 and the fourth connecting wall 641. It should be understood that when the pressure plate 342 is replaced by a clip, the clip is arranged in the first through hole 3411 and there are two clips. The two clips are respectively arranged corresponding to the third connecting wall 631 and the fourth connecting wall 641. The two clips are suitable for allowing the third connecting wall 631 and the fourth connecting wall 641 to pass through their clip heads through elastic deformation, and after the first connecting wall 631 and the fourth connecting wall 641 respectively abut against the first supporting wall 3414 and the second supporting wall 3415, the deformation is restored, and the side of the third connecting wall 631 away from the first supporting wall 3414 and the side of the fourth connecting wall 641 away from the second supporting wall 3415 are respectively pressed by their clip heads.

[0107] It should be understood that when there are four static contacts 40 and two moving contact groups, the swinging ends of the two moving contacts 50, when swinging in opposite directions, essentially switch the static contacts 41 between series and parallel. In this case, the swing-type magnetic latching relay is a series-parallel switching device. When there is only one static contact 40 and one moving contact group, there is only one elastic portion. In this case, the swing-type magnetic latching relay, like a conventional relay, is used to switch an external circuit. When there is only one moving contact group and two static contacts 40, there can be two elastic portions. In this case, the swing-type magnetic latching relay is used to switch an external circuit.

[0108] See also Figure 1 The auxiliary contact portion 300 includes an auxiliary moving contact 70 and two auxiliary static contacts 80. The auxiliary moving contact 70 is fixedly connected to the auxiliary push portion 35 and extends along the Z-axis direction. In this embodiment, the auxiliary moving contact 70 is a metal part. The auxiliary moving contact 70 is cylindrical and is integrally molded with the armature assembly 30 by insert injection molding, screw connection, or interference fit. It has an arc-shaped first contact surface. In this embodiment, the first contact surface is composed of the side surface of the auxiliary moving contact 70. Each auxiliary static contact 80 is provided with a rigid portion 81 inserted into the fixed seat 119 along the Z-axis direction and an auxiliary contact portion 82 connected to the rigid portion 81 and extending perpendicular to the X-axis direction. See Figure 8The two auxiliary contact portions 82 are arranged along the Z-axis. In this embodiment, the auxiliary contact portions 82 extend along the Y-axis and are adapted to deform along the X-axis. The auxiliary contact portions 82 are provided with a second contact surface perpendicular to the X-axis. In this embodiment, the second contact surface extends along the Y-axis. On a projection plane perpendicular to the Z-axis, the projection of one auxiliary static contact 80 overlaps the projection of the other auxiliary static contact 80. The auxiliary movable contact 70 is driven by the auxiliary push portion 35 to contact or move away from the two auxiliary static contacts 80, thereby connecting or disconnecting the two auxiliary static contacts 80. The two auxiliary contact portions 82 are adapted to contact the two sides of the auxiliary movable contact 70 that extend out of the auxiliary push portion 35 along the Z-axis.

[0109] In practice, the rigid portion 81 is formed from two rigid sheets that fit together and are integrally formed. The auxiliary contact portion 82 is integrally connected to one of the rigid sheets. One of the rigid portions 81 is further provided with a rigid segment 811 extending along the Y-axis. This segment 811 opposes the abutment portion 142 of the fixing frame 14. The arrangement of this segment 811 ensures that the lengths of the flexible deformable portions of the two auxiliary static contacts 80 are consistent, thereby ensuring that the flexible deformable portions of the two auxiliary static contacts 80 have similar elastic deformation capabilities.

[0110] The auxiliary contact portion 82 is also opposite to the limiting portion 141 of the fixing frame 14 . The limiting portion 141 is adapted to abut against the two auxiliary static contacts 80 to limit the distance that the two auxiliary contact portions 82 can move toward the auxiliary movable contact 70 .

[0111] The assembly process of this embodiment is as follows:

[0112] The coil assembly 20 is placed in the housing 11 from the second end thereof, and the connecting section 241 of the yoke 24 is inserted into the mounting groove, and the magnetic drive end 242 extends out of the first opening 3412. After insertion, the coil assembly 20 and the housing 11 are limited in position along the X-axis and Y-axis directions, and the upward movement is limited by the bottom of the mounting groove, as can be seen in FIG. Figure 8 ;

[0113] Insert the rigid portions 81 of the two auxiliary static contacts 80 into the fixing seat 119. The two auxiliary contact portions 82 are spaced apart along the Z-axis and extend along the Y-axis. The rigid segments 811 also extend along the Y-axis.

[0114] Two elastic member groups 60 are respectively installed in the bodies 341 of the two driving parts 34 of the armature assembly 30. Specifically, the first elastic member 63 is first inserted into the first through hole 3411 from the second opening 3413 until the third connecting wall 631 abuts the first supporting wall 3414 and the two elastic arms 61 are respectively inserted into the gap between the first supporting wall 3414 and the hole wall of the first through hole 3411. Then, the second elastic member 64 is inserted into the first through hole 3411 from the second opening 3413 until the fourth connecting wall 641 abuts the second supporting wall 3415 and the two fifth connecting walls 642 and the two elastic arms 61 are respectively inserted into the gap between the second supporting wall 3415 and the hole wall of the first through hole 3411. The two elastic arms 61 of the first elastic member 63 are located between the two elastic arms 61 of the second elastic member 64 along the X-axis direction; in each elastic portion, the second end of each elastic arm 61 is arranged along the Z-axis direction and each elastic arm 61 at least partially overlaps on the projection surface perpendicular to the elastic deformation direction; the pressing plate 342 is then snapped into place with the body 341, so that the portion of the pressing plate 342 extending into the first through hole 3411 abuts against the third connecting wall 631 and the fourth connecting wall 641, thereby limiting the position of the first elastic member 63 and the second elastic member 64 and the driving portion 34 in the X-axis direction, the Y-axis direction and the Z-axis direction, and the elastic member group 60 is relatively fixed to the armature assembly 30, as can be seen from the diagram. Figure 11-17 ;

[0115] The armature assembly 30 equipped with the elastic member group 60 is placed into the housing 11 from the first end of the housing 11, and the two driving parts 34 are respectively inserted into the two communicating holes 1131 of the first partition 113, and the rotation hole 331 of the armature assembly 30 is inserted into the protruding shaft of the first partition 113; each magnetic driving end 242 is respectively located between the first attraction part 321 and the second attraction part 322; the two magnetic driving ends 242 are located between the rotation axis of the armature assembly 30 and the axis of the coil winding 22 along the X-axis direction, as shown in FIG. Figure 8 ;

[0116] The fixing frame 14 is placed into the housing 11 from the first end of the housing 11 and is limitedly matched with the housing 11 along the X-axis direction and the Y-axis direction. The fixing frame 14 is supported in the housing 11, and the convex shaft of the fixing frame 14 is inserted into the rotating hole 331 of the armature assembly 30. The fixing frame 14 is also limitedly matched with the yoke 24 along the X-axis direction and the Y-axis direction and abuts against the yoke 24. The limiting portion 141 of the fixing frame 14 faces the auxiliary contact portion 82, and the abutting portion 142 of the fixing frame 14 abuts against the rigid section 811 so that the rigid portion 81 of the auxiliary static contact 80 is fixed relative to the housing 11. Figure 22 and Figure 24 ;

[0117] The first cover 12 is clamped to the outer wall of the first end of the shell 11 and fixed by glue, and the fixing frame 14 is fixed in the shell 11. Figure 22 ;

[0118] Insert the four static contacts 40 into the four matching grooves 117 in the first groove from the second end of the housing 11 and make the static contacts 41 extend out of the clearance opening 118. The dynamic contact 50 fixed to the static contacts 40 is also located in the first groove. Figure 1 8 The swing ends of the two movable contacts 50 are respectively inserted between the corresponding elastic member groups 60, and at the same time, the first movable reed 51 is inserted into the driving portion 34 through the third opening 3416 of the two driving portions 34;

[0119] The second cover body 13 is clamped to the outer wall of the second end of the shell 11 and fixed by glue, and the connecting terminal 02, the lead terminal 03 and the signal terminal 01 all pass through the bottom wall 131 and extend out of the accommodating part 10. The support surface 1311 is abutted against the step surface perpendicular to the Z-axis direction formed in the shell 11, and the second isolation plate 132 is abutted against the inner wall of the shell 11 along the X-axis and Y-axis directions. The second isolation plate 132 is located between the coil winding 22 and the contact part 200 along the X-axis direction, and cooperates with the shell 11 to form a contact chamber 001 and cooperates with the shell 11 to limit the displacement of the coil assembly 20 along the Z-axis direction; the installation is completed.

[0120] After installation is complete, see Figures 21-24 , Figures 21-24 The top view and cross-sectional view of the swinging magnetic latching relay are shown. The moving contact group and the armature assembly 30 have at least partial overlap along the Z-axis direction. The coil winding 22 is located outside the contact chamber 001. On the projection plane perpendicular to the X-axis direction, the projection of the coil winding 22 at least partially overlaps with the projection of the contact part 200. The rotation axis of the armature assembly 30 and the axis of the coil winding 22 are arranged along the X-axis direction. The two magnetic drive ends 242 are located between the rotation axis of the armature assembly 30 and the axis of the coil winding 22 along the X-axis direction. The auxiliary pushing portion 35 and the coil winding 22 are arranged along the Z-axis direction. In this embodiment, the auxiliary pushing portion 35 is located above the coil winding 22. The first end of the elastic portion is fixed to the driving portion 34 and is accommodated in the driving portion 34. The signal terminal 01, the connecting terminal 02 and the lead-out terminal 03 all pass through the bottom wall 131 and extend out of the accommodating portion 10.

[0121] See also Figures 25-28 , Figures 25-28 Schematic diagram showing the armature assembly in the first position and the second position. The working process of the relay of this embodiment is as follows:

[0122] When the signal terminal 01 receives the first pulse signal, the armature assembly 30 rotates from the second position to the first position, see Figure 25 The first attracting portion 321 attracts the first magnetic drive end 243, and the second attracting portion 322 attracts the second magnetic drive end 244; see Figure 26, one driving part 34 drives the movable contact 52 at the first swing end to close with the fourth static contact 45 through the elastic member group 60, and the other driving part 34 drives the movable contact 52 at the second swing end to close with the second static contact 43 through the elastic member group 60, and the connecting terminal 02 corresponding to the second static contact 43 and the connecting terminal 02 corresponding to the fourth static contact 45 are connected in series through the first movable contact 55 and the second movable contact 56 and serve as one of the current input end and the current output end respectively, and the first movable contact 55 and the second movable contact 56 are connected in parallel; see Figure 25 , the auxiliary moving contact 70 moves away from the two auxiliary static contacts 80 and causes the two auxiliary static contacts 84 to be disconnected;

[0123] When the signal terminal 01 receives the second pulse signal, the armature assembly 30 rotates from the first position to the second position. Figure 27 , the first attracting portion 321 attracts the second magnetic drive end 244, and the second attracting portion 322 attracts the second magnetic drive end 244; see Figure 28 , one of the driving parts 34 drives the movable contact 52 at the first swing end to close with the first static contact 42 through the elastic member group 60, and the other driving part 34 drives the movable contact 52 at the second swing end to close with the third static contact 44 through the elastic member group 60, the connecting terminal 02 corresponding to the first static contact 42 is connected in series with the connecting terminal 02 corresponding to the second static contact 43 through the first movable contact 55, the connecting terminal 02 corresponding to the third static contact 44 is connected in series with the connecting terminal 02 corresponding to the fourth static contact 45, the connecting terminal 02 corresponding to the first static contact 42 is connected to the connecting terminal 02 corresponding to the fourth static contact 45 and together constitutes one of the current input end or the current output end, the connecting terminal 02 corresponding to the second static contact 43 is connected to the connecting terminal 02 corresponding to the third static contact 44 and together constitutes the other of the current input end or the current output end; see Figure 27 , the auxiliary moving contact 70 abuts against the two auxiliary static contacts 80 and causes the two auxiliary static contacts 80 to be conductive.

[0124] In this embodiment, the contact portion 200 and the armature assembly 30 are arranged overlappingly along the Z-axis direction, and the coil winding 22 and the contact portion 200 are arranged overlappingly along the X-axis direction. Therefore, the relay as a whole occupies a small area on the projection plane perpendicular to the Z-axis direction, that is, the relay occupies a small area in the X-axis direction and the Y-axis direction. The relay also occupies a small area on the projection plane perpendicular to the X-axis direction, that is, the relay occupies a small area in the Y-axis direction and the Z-axis direction. Therefore, it can effectively solve the problem of the relay occupying a large board area when connected to the PCB board along the Z-axis direction, and at the same time, the relay occupies a small area along the Z-axis direction. The height is relatively small, and the projection of the coil winding 22 and the projection of the contact portion 200 are arranged along the X-axis direction, which increases the creepage distance between the coil winding 22 and the contact portion 200, so that the electrical distance between the weak-current contact terminal of the magnetic circuit portion 100 and the strong-current contact terminal of the contact portion 200 is maintained within a relatively large range, improving the electrical isolation problem. As a result, when the relay and the PCB are matched along the Z-axis direction, the PCB board area is small, the height occupancy is small, and the electrical isolation distance between the strong and weak-current contact terminals is large; thereby, the relay does not need to be connected to the PCB board along the X-axis direction or the Y-axis direction.

[0125] In this embodiment, the armature assembly 30 is provided with a drive portion 34 extending along the Z-axis. The movable contact assembly is adapted to be directly driven by the drive portion 34 to close or open the movable contact 52 with the stationary contact 41 along the X-axis. Compared to a scheme in which a push card is provided between the drive portion 34 and the movable contact assembly, the relay is shorter in the Z-axis direction and shorter in the X-axis direction, and the problem of jamming during operation of the push card is avoided, making the overall operation of the relay more stable. In addition, the movable contact assembly and the armature assembly 30 are ensured to have at least partial overlap along the Z-axis. By extending the movable contact assembly along the Y-axis or arranging it at an angle relative to the Y-axis, the movable contact assembly further occupies less space along the X-axis, which facilitates product miniaturization.

[0126] In this embodiment, the coil assembly 20 also includes two magnetic drive ends 242 arranged along the Y-axis direction. The axis of the coil winding 22 extends along the Y-axis direction, so that the coil winding 22 occupies less space along the X-axis direction and the Z-axis direction, which can further save space.

[0127] In this embodiment, the armature assembly 30 rotates about a rotation axis extending along the Z-axis. The rotation axis of the armature assembly 30 and the coil winding 22 are arranged along the X-axis, facilitating the layout of the armature assembly 30 and coil assembly 20. The drive unit 34 is mounted on the insulating member 33, making it easier to manufacture. The armature assembly 30 is configured for rotation, which saves space along the X-axis compared to linear motion. The closed magnetic circuit formed when engaged eliminates magnetic gaps, resulting in higher magnetic efficiency and greater attraction force, further improving contact stability between the moving contact assembly and the stationary contact.

[0128] In this embodiment, the contact portion 200 is accommodated in the contact chamber 001 , and the coil winding 22 is located outside the contact chamber 001 , which further increases the creepage distance between the coil winding 22 and the contact portion 200 and improves the electrical isolation problem.

[0129] In this embodiment, the two magnetic drive ends 242 and the coil winding 22 are arranged along the Z-axis direction. On the projection plane perpendicular to the X-axis direction, the projection of the coil winding 22 and the projection of the contact part 200 at least partially overlap, so that the two magnetic drive ends 242 are away from the contact part 200 along the Z-axis direction, so that the strong and weak current parts are separated farther in space, making it easier to meet the electrical isolation and creepage distance requirements. In addition, space is left on the side of the coil winding 22 close to the magnetic drive end 242 along the Z direction, which facilitates the subsequent installation of the auxiliary contact part 300 and improves space utilization.

[0130] In this embodiment, since the two magnetic drive ends 242 and the coil winding 22 are arranged along the Z-axis, there are two solutions to ensure the installation of the armature assembly 30. One solution is to place the two magnetic drive ends 242 away from the coil winding 22 in the X-axis direction. This solution will cause the coil assembly 20 to occupy a larger space in the X-axis direction and bring the contact portion 200 and the magnetic drive ends 242 closer to each other, which is not conducive to electrical isolation. The other solution is the solution of this embodiment, in which the two magnetic drive ends 242 are located between the rotation axis of the armature assembly 30 and the axis of the coil winding 22 along the X-axis direction. This allows the two magnetic drive ends 242 to be away from the contact portion 200, improving the electrical isolation problem. On the projection plane perpendicular to the Z-axis direction, the coil winding 22 covers the magnetic drive ends 242, and the coil assembly 20 occupies less space in the X-axis direction, further reducing the length of the accommodating part 10 along the X-axis direction. In addition, it also allows the magnetic drive ends 242 to be further away from the contact portion 200, improving the electrical isolation problem. In addition, in this structure, the rotation axis of the armature assembly 30 is close to the side where the contact part 200 is located. When the armature assembly 30 drives the moving contact group to rotate, the relative movement between it and the moving contact group in the radial direction is smaller, which can not only ensure that the moving contact 52 and the static contact 41 are in reliable contact, but also reduce friction resistance, so that the driving force required by the coil assembly 20 is smaller, and it is also more conducive to reducing the volume and space occupancy of the coil assembly 20.

[0131] In this embodiment, the arrangement direction of the rotation axis of the driving portion 34 and the armature assembly 30 is perpendicular to the polarity direction of the permanent magnet 31, so that the distance between the driving portion 34 and the rotation axis is the shortest, and the length of the accommodating portion 10 along the Y-axis direction that needs to be provided for the driving portion 34 is smaller, thereby reducing the length of the accommodating portion 10 along the Y-axis direction; in addition, compared with the solution in which the arrangement direction of the rotation axis of the driving portion 34 and the armature assembly 30 is obliquely intersected with the polarity direction of the permanent magnet 31, the contact portion 200 can also be moved away from the magnetic drive end 242 along the X-axis direction while reducing the occupied space in the X-axis direction.

[0132] In this embodiment, the coil assembly 20 is inserted into the accommodating part 10 from the second end opening of the accommodating part 10. The setting of the mounting groove can limit the coil assembly 20 along the X-axis direction, the Y-axis direction and the Z-axis direction by limiting the connecting section 241 of the yoke 24, thereby ensuring the limited cooperation between the coil assembly 20 and the accommodating part 10 after the second cover 13 and the shell 11 are fixed; the setting of the reinforcing wall 116 further improves the strength of the mounting seat 115 and ensures the structural stability; and when welding is required, only the second cover 13 is made of high-temperature resistant material, and the overall cost is lower. The setting of the support surface 1311 and the isolation plate ensures a close fit between the second cover 13 and the shell 11. In particular, the isolation plate increases the creepage distance between the contact portion 200 and the coil winding 22, thereby further improving the electrical isolation effect between the strong and weak current terminals.

[0133] In this embodiment, the extension direction of the moving contact 50 intersects with the Z-axis direction. Therefore, the elastic part intersects with the extension direction of the moving contact 50, effectively utilizing the space of the accommodating part 10 in the Z-axis direction and reducing the length of the accommodating part 10 along the X-axis direction. In this way, the width of the elastic part can be widened and the length of the elastic part can be extended as much as possible without changing the size of the moving contact 52, the width of the moving contact 50, and the overall length of the moving contact group. Widening the width of the elastic part can enable the elastic part group 60 to provide greater contact pressure to the moving contact 50, and extending the length of the elastic part can eliminate the need to set an excessively large inclination angle of the elastic part, thereby reducing the stress on the elastic part, avoiding fatigue failure, and improving the service life. Based on this, this embodiment can enable the moving contact 50 to obtain greater contact pressure when space is limited, thereby improving the service life of the elastic part, thereby improving the connection reliability of the moving contact 52 and the static contact 41. In addition, in this embodiment, during the driving process of the armature assembly 30, the contact position between it and the elastic part will not change or change slightly along the Z-axis direction, the elastic coefficient of the elastic part remains stable or relatively stable, and the elastic force changes linearly without sudden changes. The final contact pressure range is controllable, so that the required magnetic driving force can be easily controlled and ensured that the dynamic contact 50 can be reliably driven to contact or move away from the static contact 40.

[0134] In this embodiment, the dynamic contact 50 extends in a direction perpendicular to the Z-axis direction, further reducing the space occupied by the dynamic contact 50 in the Z-axis direction, and reducing the influence of the elastic member group 60 on the size of the dynamic contact 52 and the size occupied along the extension direction of the dynamic contact 50, and making the elastic force provided by the elastic member group 60 toward the static contact 40 greater.

[0135] In this embodiment, two drive units 34 are provided, one at each end of the armature assembly 30 along the Y-axis, each driving a respective spring assembly 60. This results in a simple and practical structure. The swinging ends of the two movable contacts 50 are adapted to be driven in opposite directions by the two drive units 34. Therefore, by closing the two movable contacts 52 at the swinging ends with different stationary contacts 41, switching between series and parallel connections of the different stationary contacts 41 can be achieved.

[0136] In this embodiment, the four static contacts 40 are located at the four corners of the rectangle. Compared with a parallelogram or other quadrilateral structures, the contact portion 200 occupies a smaller space along the Y-axis direction.

[0137] In this embodiment, the movable contact 50 is provided with a bent portion that protrudes relative to the direction in which the movable contact 50 extends. This bent portion absorbs the movement of the movable contact 50 in the Y-axis direction when the movable contact 52 and the stationary contact 41 close or open along the X-axis, preventing the movable contact 52 and the stationary contact 41 from staggering along the Y-axis. The bent portion includes at least two first and second bent portions 53 and 54, each bending in opposite directions. This increases the flexibility of the movable contact 50, further preventing the movable contact 52 and the stationary contact 41 from staggering along the Y-axis, and also prevents interference between the movable contact 50 and the housing 11 during movement. Placing one of the bent portions near the fixed end of the movable contact 50 also facilitates determining the deformation fulcrum.

[0138] In this embodiment, each static contact 40 is provided with at least two static contacts 41 arranged along the Z-axis. Correspondingly, the swinging end of the movable contact 50 is divided into multiple, one-to-one correspondences with each static contact 41, each with a movable contact 52. When the movable contact 50 contacts the corresponding static contact 40, the current flowing through the movable contact 50 is split into multiple paths, thereby reducing the resistance of the movable contact 50 and improving its overall current-carrying capacity. The projections of the static contacts 41 on a plane perpendicular to the Z-axis completely overlap. Compared to a case where the static contacts 41 of each static contact 40 are staggered along the Y-axis, this results in a smaller space occupied by the contact portion 200 in the Y-axis.

[0139] In this embodiment, the elastic member group 60 is arranged between the moving contact 50 and the driving part 34 and is suitable for deforming in a direction perpendicular to the Z-axis to provide an elastic force to the moving contact 50 toward the static contact 40 when the moving contact 52 and the static contact 41 are in contact. Therefore, the driving part 34 can drive the moving contact 50 to move through the elastic member group 60 so that the moving contact 52 and the static contact 41 are closed along the X-axis direction. The elastic member group 60 can apply contact pressure to the moving contact 52 to close with the static contact 41, thereby ensuring stable contact between the moving contact 52 and the static contact 41.

[0140] In this embodiment, the elastic member group 60 is provided with an elastic portion extending along the Z-axis direction. The first end of the elastic portion is accommodated in the driving portion 34, and the second end is abutted or fixed to the dynamic contact member 50. Compared with the solution in which the elastic portion is outside the driving portion 34, the connection between the elastic portion and the driving portion 34 is more stable and occupies less space in the X-axis direction.

[0141] In this embodiment, the position where the second end of the elastic part contacts the swinging end of the moving contact 50 is farther away from the fixed end than the contact position between the moving contact 50 and the static contact 40, so that the torque exerted by the elastic part on the moving contact 50 is greater. When the elastic part is pressurized by the armature assembly 30, the contact stability between the moving contact 52 and the static contact 41 is higher.

[0142] In this embodiment, there are two elastic parts, which are respectively arranged on two sides of the swinging end of the moving contact 50, away from each other, and are respectively used to provide contact reaction force to the moving contacts 52 on both sides of the moving contact 50. Compared with the fixed connection or abutment between the elastic part and other positions of the moving contact 50, the elastic part group 60 applies a greater contact pressure to the moving contact 52 and the static contact 41 to close the moving contact 50. In addition, the above arrangement enables the moving contacts 52 on both sides of the swinging end to be subjected to the contact pressure of the elastic part, ensuring the stable closure of the moving contacts 52 on both sides and the corresponding static contacts 41.

[0143] In this embodiment, the two elastic parts are symmetrically arranged about the swing end along their elastic deformation direction. Compared with the two elastic parts being staggered along the extension direction of the dynamic contact 50, the driving forces applied by the two elastic parts to the dynamic contact 50 are closer in magnitude, thereby ensuring that the dynamic contact 52 on each side of the dynamic contact 50 has a larger contact pressure.

[0144] In this embodiment, the elastic member group 60 is also provided with a fixing portion; the fixing portion is connected to the first ends of the two elastic portions as a whole, and is used to be fixedly connected to the driving portion 34; the second end of the elastic portion abuts against the moving contact 50, which is beneficial to the assembly of the elastic portion and the moving contact 50, especially when the moving contact 50 is composed of multiple elastic sheets stacked together, the two elastic portions only need to abut against the two sides of the moving contact 50 that are away from each other.

[0145] In this embodiment, the arrangement of multiple elastic members enables each movable spring 51 of each movable contact member 50 to be driven by an elastic member, and the two elastic arms 61 of the elastic member clamp the two sides of the movable spring 51, which is simple to assemble and ensures that each movable contact point 52 of each movable contact member 50 has a higher contact pressure; the connecting parts 62 are arranged at intervals along the extension direction of the movable contact member 50, thereby avoiding interference between the elastic members.

[0146] In this embodiment, in each elastic portion, the elastic arms 61 at least partially overlap on the projection surface perpendicular to the elastic deformation direction. Compared with the solution in which the elastic arms 61 are arranged along the extension direction of the dynamic spring piece 51, this is beneficial for the elastic members to apply a greater contact pressure to the corresponding dynamic spring piece 51.

[0147] In this embodiment, the connecting portion 62 of the second elastic member 64 includes a fourth connecting wall 641 extending along the X-axis direction and a fifth connecting wall 642 extending obliquely from the fourth connecting wall 641 on both sides along the X-axis direction relative to the Z-axis direction and the Y-axis direction. The elastic arm 61 of the second elastic member 64 is connected as a whole with the fifth connecting wall 642 on the same side, which is beneficial to avoid interference between the elastic members.

[0148] In this embodiment, the swing end of the first movable spring 51 is also located in the driving portion 34, which is beneficial to reducing the length of the elastic member along the Z-axis direction, reducing the length of the relay in the Z-axis direction, and ensuring that the driving portion 34 abuts against the first elastic member 63 to elastically deform the elastic arm 61.

[0149] In this embodiment, the setting of the auxiliary contact part 300 is conducive to monitoring the operation of the relay. The auxiliary contact part 300 is away from the rotation axis along the X-axis direction, which is conducive to making the terminals of the auxiliary contact part 300 away from the terminals of the contact part 200 in the X-axis direction, thereby increasing the distance between the auxiliary contact part 300 and the contact part 200 and improving the electrical isolation problem.

[0150] In this embodiment, an auxiliary pushing portion 35 is further provided on the side of the insulating member 33 away from the rotation axis. The auxiliary pushing portion 35 and the coil winding 22 are arranged along the Z-axis direction, and the auxiliary moving contact 70 extends along the Z-axis direction. Each auxiliary static contact 80 is provided with an auxiliary contact portion 82 extending perpendicular to the X-axis direction, and the two auxiliary contact portions 82 are arranged at intervals along the Z-axis direction; the auxiliary moving contact 70 is driven by the auxiliary pushing portion 35 to contact or move away from the two auxiliary static contacts 80 to make the two auxiliary static contacts 80 conductive or disconnected, making full use of the space on the side of the coil winding 22 close to the magnetic drive end 242 along the Z-axis direction, thereby improving space utilization, and the setting of the auxiliary contact portion 300 makes it mainly occupy space in the Z-axis direction and occupies little space in the X-axis direction. In this way, the auxiliary moving contact 70 can be fixed to the armature assembly 3 0 so that the auxiliary moving contact 70 moves with the armature assembly 30, and the extension direction of the auxiliary moving contact 70 is set to be parallel to the rotation axis of the armature assembly 30, so that the entire auxiliary contact portion occupies a smaller size on both sides of the armature assembly 30. The maximum size occupied is only the distance between the auxiliary moving contact 70 and the auxiliary static contact 80 when they are disconnected, and the space occupied is small. Therefore, as long as the auxiliary contact portion can avoid the coil assembly 20, the auxiliary contact portion can be easily installed in the limited space on both sides of the armature assembly 30 without increasing the volume of the accommodating part 10. The auxiliary contact portion 300 in this embodiment occupies less space than the standard micro switch part, and the position of the terminal of the auxiliary contact portion 300 can be adjusted as needed, and the structural design is simpler. In addition, after such a design, the lead terminal 03 of the auxiliary contact portion 300 and the terminal (weak current) of the coil winding 22 are both away from the terminal (strong current) of the contact portion 200 along the X-axis direction, which is conducive to the isolation of strong and weak current terminals.

[0151] In this embodiment, the auxiliary static contact 80 is suitable for deformation along the X-axis direction. Since the two magnetic drive ends 242 are located between the rotation axis of the armature assembly 30 and the axis of the coil winding 22 along the X-axis direction, the tangential component of the force along the X-axis transmitted to the auxiliary push portion 35 by the armature assembly 30 is relatively large, which can give the auxiliary moving contact 70 and the auxiliary contact portion 82 a certain contact pressure. In other words, by designing the position of the auxiliary static contact 80, when the armature assembly 30 is rotated into place, the abutment of the auxiliary moving contact 70 against the auxiliary contact portion 82 causes the auxiliary static contact 80 to form appropriate deformation, which is conducive to obtaining a more stable contact relationship after conduction. The auxiliary contact portion 82 extends parallel to the Y-axis. Compared to a solution in which the auxiliary contact portion 82 extends along the Z-axis, this avoids occupying too much space in the Z-axis direction and prevents the auxiliary static contact 80 from forming an angle with the auxiliary movable contact 70 when the auxiliary movable contact 70 abuts against two auxiliary contact portions 82, thereby preventing reliable contact. Furthermore, when the auxiliary contact portion 82 extends along the Y-axis, it is perpendicular to the extension direction of the auxiliary movable contact 70. Therefore, even if the auxiliary contact portion 82 deforms during the rotation of the auxiliary movable contact 70, the auxiliary contact portion 82 and the auxiliary movable contact 70 maintain the same contact area, thereby not affecting the contact reliability between the auxiliary movable contact 70 and the auxiliary contact portion 82. On a projection plane perpendicular to the Z-axis, the projection of one auxiliary static contact 80 overlaps the projection of the other auxiliary static contact 80. That is, the two auxiliary static contacts 80 are not offset from each other along the X-axis, thereby further saving space and facilitating relay miniaturization.

[0152] In this embodiment, the fixed seat 119 is fixed to the first side wall 111, which is easy to process and has a stable structure; the auxiliary static contact 80 is provided with a rigid part 81 inserted into the fixed seat 119, and the rigid part 81 is provided with a lead terminal 03. The auxiliary contact part 82 is connected to the rigid part 81 as a whole, which is conducive to ensuring that the two auxiliary contact parts 82 are located on the same plane, thereby improving the connection reliability.

[0153] In this embodiment, the two rigid parts 81 are connected as one by insert injection molding, and the two rigid parts 81 can be installed synchronously, which is beneficial to reducing the installation error caused by independent installation of each other, improving the accuracy of the relative position of the two rigid parts 81, and further ensuring that the two auxiliary contact parts 82 are located on the same plane, thereby further improving the connection reliability between the auxiliary dynamic contact 70 and the two auxiliary static contacts 80.

[0154] In this embodiment, the auxiliary movable contact 70 is cylindrical, which has a simple structure, occupies a small space in a plane perpendicular to the Z-axis, and facilitates secure connection with the armature assembly 30. The second contact surface extends along the Y-axis, perpendicular to the extension direction of the auxiliary movable contact 70. Therefore, even if the auxiliary contact portion 82 deforms during the rotation of the auxiliary movable contact 70, the auxiliary contact portion 82 and the auxiliary movable contact 70 maintain the same contact area, thereby maintaining the contact reliability between the auxiliary movable contact 70 and the auxiliary contact portion 82.

[0155] In this embodiment, the auxiliary push portion 35 is positioned offset from the center of the armature assembly 30 along the Y-axis. Thus, compared to a solution in which the auxiliary push portion 35 is positioned at the center of the armature assembly 30 along the Y-axis, the auxiliary push portion 35 and the auxiliary movable contact 70 have a greater travel range when the armature assembly 30 rotates, thereby facilitating reliable disconnection between the auxiliary movable contact 70 and the auxiliary static contact 80. The auxiliary push portion 35 is located in the middle of the armature assembly 30 along the Z-axis, and the space it occupies along the Z-axis encompasses the interior of the armature assembly 30, without occupying any additional space. This saves space and facilitates further miniaturization of the relay. The two auxiliary contact portions 82 are adapted to respectively contact the two sides of the auxiliary movable contact 70 that extend out of the auxiliary push portion 35 along the Z-axis. The two auxiliary contact portions 82 are relatively far apart, minimizing the likelihood of interference.

[0156] In this embodiment, the limiting portion 141 is suitable for abutting the two auxiliary static contacts 80 to limit the distance that the two auxiliary contact portions 82 move toward the auxiliary moving contact 70, which can prevent the auxiliary contact portion 82 from being excessively deformed due to adhesion when the auxiliary moving contact 70 is disconnected from the auxiliary contact portion 82, thereby avoiding disconnection failure between the auxiliary contact portion 82 and the auxiliary moving contact 70 and improving the disconnection stability.

[0157] In this embodiment, each auxiliary dynamic contact 70 is provided with a first contact surface suitable for abutting the auxiliary contact portion 82, the first contact surface is arc-shaped, and the auxiliary contact portion 82 is provided with a second contact surface parallel to the Z-axis direction. When the first contact surface and the second contact surface are in contact, it is line contact, the contact area is larger than that of point contact, and the contact stability is reliable.

[0158] In this embodiment, the connection terminal 02 and the signal terminal 01 both extend out of the same side of the accommodation component 10 along the Z-axis direction, which facilitates the connection of the relay to the PCB board along the Z-axis direction.

[0159] In this embodiment, the connecting terminal 02 and the signal terminal 01 extend out of the accommodating part 10 along the Z-axis direction close to the side of the contact portion 200, so that the connecting terminal 02 and the signal terminal 01 do not need to be bent to avoid the armature assembly 30 when extending out of the accommodating part 10 along the Z-axis direction. They are not easily damaged, and the assembly is simple and material costs are saved.

[0160] In this embodiment, the signal terminal 01, the connecting terminal 02 and the lead-out terminal 03 all pass through the bottom wall 131 and extend out of the accommodating component 10. Since the coil winding 22 and the contact portion 200 are arranged along the X-axis direction, the signal terminal 01 and the connecting terminal 02 are staggered from each other along the X-axis direction on the bottom wall 131, and the signal terminal 01 is located on or on both sides of the coil winding 22 along the Y-axis direction. Therefore, the signal terminal 01, the connecting terminal 02 and the lead-out terminal 03 are staggered from each other along the Y-axis direction. Therefore, the signal terminal 01, the connecting terminal 02 and the lead-out terminal 03 are staggered from each other on the bottom wall 131, further meeting the electrical isolation and creepage distance requirements.

[0161] In this embodiment, the accommodating member 10 includes a shell 11, a first cover body 12, a second cover body 13 and a fixing frame 14, so that the armature assembly 30 can be placed in the shell 11 at the first end of the shell 11 and rotatably connected to the shell 11 and the fixing frame 14. The first cover body 12 is fixed to the outer wall of the first end of the shell 11, and the fixing frame 14 is accommodated in the shell 11 and fixed relative to the shell 11. The separate setting of the first cover body 12 and the fixing frame 14 is more conducive to installation and avoids the uneven force inside and outside the shell 11 caused by the integral molding of the first cover body 12 and the fixing frame 14, as well as the resulting installation effort and assembly difficulties.

[0162] Example 2

[0163] The structure of Example 2 is basically the same as that of Example 1, except that Figure 29 In this embodiment, the two rigid parts 81 are connected as one by insert injection molding, which is beneficial to reducing the amount of movement between the two rigid parts 81, further ensuring that the two auxiliary contact parts 82 are located on the same plane, thereby further improving the connection reliability between the auxiliary moving contact 70 and the two auxiliary static contacts 80.

[0164] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. An auxiliary contact portion (300) for a swing-type magnetic latching relay, wherein the magnetic circuit portion (100) of the swing-type magnetic latching relay comprises a coil assembly (20) and an armature assembly (30), wherein the coil assembly (20) is provided with two magnetic drive ends (242) arranged along the Y-axis direction, and the armature assembly (30) swings relative to the coil assembly (20) around a rotation axis extending along the Z-axis direction; wherein the auxiliary contact portion (300) is characterized in that: The auxiliary contact portion (300) includes an auxiliary moving contact (70) and two auxiliary static contacts (80), each auxiliary static contact (80) is provided with an auxiliary contact portion (82) extending perpendicularly to the X-axis direction, and the two auxiliary contact portions (82) are arranged along the Z-axis direction; the auxiliary moving contact (70) is fixed to the armature assembly (30) and extends along the Z-axis direction, and is driven by the armature assembly (30) to contact or move away from the two auxiliary static contacts (80) to make the two auxiliary static contacts (80) conductive or disconnected.

2. An auxiliary contact portion (300) according to claim 1, characterized in that: The auxiliary static contact member (80) is suitable for deformation along the X-axis direction.

3. An auxiliary contact portion (300) according to claim 2, characterized in that: The extension direction of the auxiliary contact portion (82) is parallel to the Y-axis direction; on a projection surface perpendicular to the Z-axis direction, the projection of one of the auxiliary static contact pieces (80) covers the projection of another auxiliary static contact piece (80).

4. An auxiliary contact portion (300) according to claim 2, characterized in that: The auxiliary movable contact (70) is provided with a first contact surface suitable for abutting against the auxiliary contact portion (82), and the first contact surface is arc-shaped; the auxiliary contact portion (82) is provided with a second contact surface perpendicular to the X-axis direction.

5. An auxiliary contact portion (300) according to claim 4, characterized in that: The auxiliary moving contact (70) is cylindrical and is integrally formed with the armature assembly (30) by insert injection molding, screw connection or interference fit; the second contact surface extends along the Y-axis direction.

6. A swing type magnetic latching relay, characterized in that: The invention comprises a magnetic circuit portion (100) and an auxiliary contact portion (300) according to any one of claims 1 to 5.

7. A swing type magnetic latching relay as claimed in claim 6, characterized in that: The invention also includes an accommodating part (10) and a contact part (200); the magnetic circuit part (100) includes a coil assembly (20) and an armature assembly (30); the coil assembly (20) is fixed to the accommodating part (10) and is provided with a coil winding (22) and two magnetic drive ends (242) arranged along the Y axis; the armature assembly (30) is driven by the two magnetic drive ends (242) to rotate relative to the coil assembly (20) around a rotation axis extending along the Z axis; the armature assembly (30) is provided with a driving part (34) and an auxiliary pushing part (35); The contact portion (200) includes at least one moving contact group and at least one stationary contact (40), the moving contact group is provided with a moving contact (52), the stationary contact (40) is provided with a stationary contact (41), and the moving contact group is suitable for being driven by the driving portion (34) so that the moving contact (52) is closed or opened with the stationary contact (41) along the X-axis direction; The auxiliary moving contact (70) is fixedly connected to the auxiliary pushing portion (35), and the auxiliary static contact (80) is fixedly connected to the accommodating portion (10); the auxiliary moving contact (70) is suitable for being driven by the auxiliary pushing portion (35) to contact or move away from the two auxiliary static contacts (80) so as to connect or disconnect the two auxiliary static contacts (80).

8. A swing type magnetic latching relay as claimed in claim 7, characterized in that: The accommodating member (10) is provided with a limiting portion (141) toward the auxiliary contact portion (82), and the limiting portion (141) is suitable for abutting against the two auxiliary contact members to limit the distance that the two auxiliary contact members (82) move toward the auxiliary movable contact member (70).

9. A swing type magnetic latching relay as claimed in claim 8, characterized in that: The accommodating member (10) is further provided with a first side wall (111) perpendicular to the X-axis direction and close to the auxiliary pushing portion (35), and a fixing seat (119) fixed to the first side wall (111); the auxiliary static contact member (80) is provided with a rigid portion (81) inserted into the fixing seat (119); the rigid portion (81) is provided with the lead terminal (03); and the auxiliary contact portion (82) is integrally connected to the rigid portion (81).

10. A swing type magnetic latching relay as claimed in claim 9, characterized in that: The two rigid parts (81) are connected as one body through insert injection molding.

11. A swing type magnetic latching relay according to any one of claims 7 to 10, characterized in that: The two magnetic drive ends (242) are both located between the rotation axis and the axis of the coil winding (22) along the X-axis direction; the auxiliary pushing portion (35) is located on a side of the armature assembly (30) close to the coil winding (22).

12. A swing type magnetic latching relay as claimed in claim 11, characterized in that: The axis of the coil winding (22) extends along the Y-axis direction, and the rotation axis of the armature assembly (30) and the axis of the coil winding (22) are arranged along the X-axis direction; the auxiliary pushing portion (35) and the coil assembly are arranged along the Z-axis direction, and on a projection plane perpendicular to the Z-axis direction, the auxiliary pushing portion (35) and the coil winding (22) at least partially overlap.

13. A swing type magnetic latching relay as claimed in claim 12, characterized in that: The auxiliary pushing portion (35) is arranged to deviate from the center of the armature assembly (30) along the Y-axis direction and is located in the middle of the armature assembly (30) along the Z-axis direction; the two auxiliary contact portions (82) are suitable for respectively contacting with the two sides of the auxiliary movable contact (70) extending out of the auxiliary pushing portion (35) along the Z-axis direction.

14. The swing type magnetic latching relay according to claim 12, wherein: The two magnetic drive ends (242) and the coil winding (22) are arranged along the Z-axis direction; on a projection plane perpendicular to the X-axis direction, the projection of the coil winding (22) and the projection of the contact portion (200) at least partially overlap; and the auxiliary pushing portion (35) is close to the magnetic drive end (242) and away from the contact portion (200).

15. A swing type magnetic latching relay as claimed in claim 14, characterized in that: On a projection plane perpendicular to the Z-axis direction, the coil winding (22) covers the magnetic drive end (242).

16. A swing type magnetic latching relay as claimed in claim 15, characterized in that: On a projection plane perpendicular to the Z-axis direction, the projection of the coil winding (22) and the projection of the contact portion (200) are arranged along the X-axis direction, and the projections of the armature assembly (30) and the contact portion (200) at least partially overlap.

17. A swing type magnetic latching relay as claimed in claim 16, characterized in that: The accommodating member (10) is provided with a contact chamber (001), the contact portion (200) is accommodated in the contact chamber (001), and the coil winding (22) is located outside the contact chamber (001).

18. A swing type magnetic latching relay as claimed in claim 17, characterized in that: The accommodating part (10) is provided with a bottom wall (131) perpendicular to the Z-axis direction and close to the contact portion (200); the coil assembly (20) further includes a signal terminal (01) electrically connected to the coil winding (22); the contact portion (200) is further provided with a connecting terminal (02); the signal terminal (01), the connecting terminal (02) and the lead-out terminal (03) all pass through the bottom wall (131) and extend out of the accommodating part (10).

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