Relay

Abstract

The utility model discloses a relay, a magnetic circuit part comprises an armature assembly, and the armature assembly rotates around a first axis; the contact part comprises a static contact piece and a movable contact piece, and further comprises an elastic piece; a driving part is arranged on one side of the armature assembly in the width direction, and the driving part is suitable for swinging in a first plane; the driving part drives the elastic part to drive the movable contact part to swing, and the elastic part is provided with a fixed part and an elastic part. The fixed part is fixedly connected with one of the driving part and the movable contact piece, the elastic part abuts against the other one of the driving part and the movable contact piece and is suitable for rotating around a second axis to deform when the driving part rotates so as to provide contact counter force towards the static contact piece for the movable contact piece, and the second axis is parallel to the first plane or forms a preset included angle with the first plane. According to the invention, when the moving contact and the static contact are closed, the required driving power of the coil assembly is relatively low, or the required coil assembly and the armature assembly are relatively small in size; and when the movable contact piece and the static contact piece are arranged, the coil assembly is good in anti-magnetic interference effect and reliable in breaking.

Description

Technical Field

[0001] The utility model relates to the field of relays, in particular to a relay. Background Art

[0002] A relay typically includes a contact portion, which includes a static contact and a moving contact assembly. The static contact is provided with a static contact point, and the moving contact assembly generally includes a moving contact and an elastic member. One end of the moving contact is fixed to form a fixed end, and the other end forms a contact portion that can swing relative to the fixed end. The contact portion is provided with a moving contact point. Existing elastic members are generally integrally formed or riveted to the contact portion of the moving contact. The extension direction of the elastic member is consistent with the length direction of the moving contact. The armature assembly drives the elastic member through its upper swing arm, thereby driving the contact portion of the moving contact to move, causing the moving contact and the static contact to close or open. In practice, it has been found that in relays with such a structure, the driving power of the coil assembly required when the moving and static contacts are closed is relatively large, or the required coil assembly and armature assembly are relatively large in size. During the disconnection process between the moving and static contacts, the coil assembly has poor anti-magnetic interference effect and unreliable disconnection. Utility Model Content

[0003] The purpose of the present utility model is to overcome the above-mentioned defects or problems existing in the background technology and to provide a relay in which the driving power of the coil assembly required when the moving contact and the static contact are closed is relatively small, or the volume of the required coil assembly and the armature assembly is relatively small; and in the process of disconnection between the moving contact and the static contact, the coil assembly has good anti-magnetic interference effect and reliable disconnection.

[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] 20. The repairing kit for automotive dents, according to claim 19, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole comprises a first end, and a second end, of the foot stand, wherein the bosses comprise a through-hole, a second end, and a second end. The two foot pieces comprise a first end, and a second end, of the foot stand.

[0006] Based on technical solution one, there is also provided technical solution two. In technical solution two and its preferred embodiment, the second axis is parallel to the first plane and perpendicular to the first axis.

[0007] Based on technical solution one, there is also a technical solution three. In technical solution three and its preferred embodiment, the preset angle does not exceed 20°.

[0008] Based on Technical Solution 2, Technical Solution 4 is also provided. In Technical Solution 4 and its preferred embodiment, the second axis is parallel to the length direction of the moving contact, and the first axis is parallel to the width direction of the moving contact.

[0009] Based on technical solution four, technical solution five is also provided. In technical solution five and its preferred embodiment, the fixed portion is fixedly connected to the moving contact, and the elastic portion abuts against the driving portion; the moving contact is provided with a moving contact point; the elastic portion and the moving contact point are located on the same side of the fixed portion along the width direction of the moving contact.

[0010] Based on technical solution five, technical solution six is also provided. In technical solution six and its preferred embodiment, along the width direction of the movable contact, the elastic portion does not exceed the edge of the movable contact.

[0011] Based on Technical Solution 6, Technical Solution 7 is also provided. In Technical Solution 7 and its preferred embodiment, along the length direction of the moving contact, the moving contact point is located between the elastic part and the fixed end of the moving contact.

[0012] Based on Technical Solution 7, Technical Solution 8 is also provided. In Technical Solution 8 and its preferred embodiment, the fixing portion extends to one side of the moving contact along the width direction of the moving contact.

[0013] Based on Technical Solution Eight, Technical Solution Nine is also provided. In Technical Solution Nine and its preferred embodiment, the moving contact is provided with a contact portion, the contact portion is suitable for swinging and is provided with the moving contact, the static contact is provided with a static contact, and the moving contact is suitable for closing or disconnecting with the static contact; the fixed portion is fixedly connected to the contact portion; along the length direction of the moving contact, the elastic portion and the contact portion are separated by a circular arc gap, and the bending direction of the circular arc gap matches the bending direction of the outer peripheral wall of the moving contact.

[0014] Based on Technical Solution Nine, Technical Solution Ten is also provided. In Technical Solution Ten and its preferred embodiments, the moving contact comprises at least two superimposed moving springs, each moving spring is provided with a swinging portion, the swinging portion of each moving spring is fixedly connected to the moving contact point and forms the contact portion, and the fixed portion is connected as one piece with the swinging portion of the moving spring piece on the side of the moving contact point away from the moving contact point.

[0015] Based on any one of technical solutions five to ten, a technical solution eleven is also provided. In technical solution eleven and its preferred embodiment, the driving part is provided with a push groove opening toward the elastic part, and the extension direction of the push groove is parallel to the length direction of the armature assembly; the fixed part and the elastic part are connected as one, and the end of the elastic part away from the fixed part is inserted into the push groove.

[0016] Based on technical solution eleven, technical solution twelve is also provided. In technical solution twelve and its preferred embodiment, the elastic part is provided with an abutting wall suitable for abutting against the groove wall of the push groove, and the end of the abutting wall away from the elastic part is provided with a guide part that is gradually inclined toward the bottom of the push groove and approaches the static contact part.

[0017] Based on Technical Solution 12, Technical Solution 13 is also provided. In Technical Solution 13 and its preferred embodiment, the width of the two groove walls of the pushing groove at the contact position with the elastic part is smaller than the width of other positions of the driving part.

[0018] Based on Technical Solution 1, there is also Technical Solution 14. In Technical Solution 14 and its preferred embodiment, the magnetic circuit portion further includes a coil assembly, which includes a coil winding extending along the Y-axis direction and two magnetic drive ends arranged along the Y-axis direction; the contact portion and the coil winding are respectively located on both sides of the second plane in the X-axis direction, and the second plane is perpendicular to the X-axis direction and passes through the first axis. From the above description of the present invention and its preferred embodiment, it can be seen that compared with the prior art, the technical solution and its preferred embodiment of the present invention have the following beneficial effects due to the adoption of the following technical means:

[0019] The applicant has learned through continuous observation, experimentation and research that the reason why the technical problems in the existing technical solutions that "the driving power of the coil assembly required when the moving contact and the static contact are closed is large, or the volume of the coil assembly and the armature assembly required is large; in the process of disconnecting the moving contact and the static contact, the anti-magnetic interference effect of the coil assembly is poor and the disconnection is unreliable" is that the extension direction of the elastic part is consistent with the length direction of the moving contact, and the elastic part is deformed by rotating around the axis extending along the width direction of the moving contact. When the armature assembly rotates, the swing arm extends from one side of the armature assembly in the width direction. As the armature assembly rotates, the driving end generates a force for driving the moving contact to be on and off. In addition to the radial displacement of the directional movement, a large movement component will also be generated in the rotation direction, causing the force point of the elastic member to be displaced along the length direction of the moving contact. During the closing process of the moving contact and the static contact, the force arm of the elastic member continues to decrease, and the elastic coefficient continues to increase. Since the elastic force of the elastic member is inversely proportional to the cube of the force arm length, the elastic force of the elastic member is greatly increased, which also means that the driving force required to be provided by the coil assembly needs to be large, so the input driving voltage is large, the driving power consumption is also greater, or the number of ampere-turns required for the coil assembly and the volume of the permanent magnet of the armature assembly are also larger, resulting in a larger overall volume of the magnetic circuit part. In the process of disconnecting the moving contact and the static contact, due to the large elastic force of the elastic member, the elastic force of the elastic member to restore the deformation is also large, which plays a certain driving role in the resetting of the moving contact. Therefore, the driving force required to be provided by the magnetic circuit part is small, resulting in a weaker ability of the magnetic circuit part to resist magnetic interference. During the disconnection process between the moving contact and the static contact, since a push card is set between the armature assembly and the elastic part, the idle jitter of the push card and the armature assembly will cause the moving contact to produce disconnection jitter, thereby affecting the arc burning characteristics of the disconnecting arc, and increasing the risk of contact erosion and uncontrolled arc erosion of other components, making disconnection unreliable.

[0020] In technical solution one and its preferred embodiment, the width direction of the armature assembly is the layout direction of the two armatures in the armature assembly; the second axis is at a preset angle to the first plane, wherein the preset angle does not include a right angle; since the armature assembly rotates around the first axis based on the polarity change of the coil assembly, a driving part is provided on one side of the width direction of the armature assembly. Therefore, although the driving part has a large movement component in the length direction of the armature assembly during rotation, it will not move in the extension direction of the first axis, and the driving part occupies a small space in the extension direction of the first axis and the extension direction of the moving contact; the fixed part is fixedly connected to one of the driving part and the moving contact, and the elastic part is in contact with the other of the driving part and the moving contact, and is suitable for rotating around the second axis and deforming when the driving part rotates, so as to provide the moving contact with a contact reaction force toward the static contact. The second axis is parallel to the first plane or at a preset angle. Therefore, the driving part drives the elastic part to move During the movement, the force arm of the elastic part basically does not change or changes very little, the elastic coefficient of the elastic part remains stable or relatively stable, and the elastic force changes linearly without sudden changes. Therefore, the magnetic driving force during the closing process of the moving contact and the static contact, as well as the magnetic driving force during the disconnection process of the moving contact and the static contact, are both set with a basically stable elastic force as a reference. The magnetic driving force during the closing process of the moving contact and the static contact will not be set to a large value due to the large elastic force finally formed, so that the driving power consumption of the coil assembly and the permanent magnet of the armature assembly can be smaller, and the driving force during the disconnection process of the moving contact and the static contact can also be set normally based on the appropriate reaction force of the elastic part, thereby ensuring the disconnection process. The coil assembly has good anti-magnetic interference strength. The above setting can also easily control the required magnetic driving force and ensure that the moving contact can be reliably driven to resist or move away from the static contact. The drive part of the armature assembly is directly formed. Compared with the traditional split structure, direct forming is more convenient and cost-effective. At the same time, direct forming also makes it unnecessary to set a push card between the armature assembly and the elastic part, which is conducive to avoiding the vibration between the push card and the armature assembly, which causes the dynamic contact to shake when it is disconnected, resulting in unreliable disconnection. Specifically, this solution realizes the characteristic of rigid connection between the drive part and the armature part without idle travel, eliminates the idle travel jitter of the push card and the armature part, and reduces the jitter of the disconnecting dynamic contact in an extremely simple and economical way.

[0021] In technical solution two and its preferred embodiment, the second axis is parallel to the first plane and perpendicular to the first axis. Compared with the second axis forming a preset angle with the first plane, on the one hand, it is easier to reduce the space required by the elastic part and the moving contact in the length direction of the moving contact, thereby reducing the volume of the relay. On the other hand, it is more conducive to reducing the change in the force arm of the elastic part during the driving process, so that the elastic coefficient remains stable or relatively stable during the closing or opening of the moving contact and the static contact.

[0022] In technical solution three and its preferred embodiment, the preset angle does not exceed 20°. Compared with a large angle, it is easier to reduce the space required by the elastic part and the moving contact in the length direction of the moving contact, thereby reducing the volume of the relay. It is also more conducive to reducing the change in the force arm of the elastic part during the driving process, so that the elastic coefficient changes less during the closing or disconnection of the moving contact and the static contact.

[0023] In technical solution four and its preferred embodiment, the second axis is parallel to the length direction of the moving contact, and the first axis is parallel to the width direction of the moving contact. Compared with the second axis forming an angle with the length direction of the moving contact, and the first axis forming an angle with the width direction of the moving contact, the elastic force of the elastic member is easier to transmit to the moving contact, which is more conducive to reducing the magnetic driving force required during the closing process of the moving contact and the static contact.

[0024] In technical solution five and its preferred embodiment, the fixed part is fixedly connected to the moving contact, and the elastic part is in contact with the driving part; the moving contact is provided with a moving contact point; the elastic part and the moving contact point are located on the same side of the fixed part along the width direction of the moving contact, so the space occupied by the elastic part in the width direction of the moving contact is mainly the space occupied by the moving contact, so that the space occupied by the moving contact and the elastic part in the width direction of the moving contact of this application can be set to be smaller.

[0025] In technical solution six and its preferred embodiment, the elastic part does not exceed the edge of the moving contact along the width direction of the moving contact, so the space occupied by the elastic part in the width direction of the moving contact is small, so that the space occupied by the moving contact and the elastic part in the width direction of the moving contact of the present application can be set to be smaller, and when the elastic part cooperates with the driving part, it is easier to reduce the height of the relay in the width direction of the moving contact; in addition, after such arrangement, the width direction of the elastic part is consistent with or at an angle to the length direction of the moving contact, so increasing the width of the elastic part will not increase the volume of the relay too much, and a larger width of the elastic part can enable the elastic part to provide greater contact pressure to the moving contact, thereby improving the connection reliability of the moving contact and the static contact.

[0026] In technical solution seven and its preferred embodiment, along the length direction of the moving contact, the moving contact is located between the elastic part and the fixed end of the moving contact. Compared with the moving contact being located between the contact part and the fixed end of the moving contact, when closed, the contact pressure of the moving contact is greater and the moving contact is less likely to separate from the static contact, thereby improving the connection reliability between the moving contact and the static contact.

[0027] In Technical Solution 8 and its preferred embodiment, the fixed portion extends to one side of the moving contact along the width direction of the moving contact, effectively utilizing the space on both sides of the moving contact and extending the length of the fixed portion as much as possible so that the fixed portion and the moving contact have a larger connection area, reducing stress concentration, reducing fatigue damage, and improving service life.

[0028] In Technical Solution 9 and its preferred embodiment, the fixed portion is fixedly connected to the contact portion, resulting in a simpler structure. Along the length of the movable contact, the elastic portion and the contact portion are separated by an arc-shaped gap. The curvature of the arc-shaped gap matches the curvature of the outer peripheral wall of the movable contact. The elastic portion, based on the shape of the movable contact, more rationally utilizes space to design its shape. This results in a longer first end of the elastic portion, better dispersing stress, preventing fatigue failure, and extending service life.

[0029] In technical solution ten and its preferred embodiment, the fixed part is connected to the swinging part of the moving spring on the side of the moving contact away from the moving contact point, the structure is simpler, and it is easy to produce and process; the moving contact includes at least two superimposed moving springs, which increases the current carrying capacity and elastic deformation capacity.

[0030] In technical solution eleven and its preferred embodiment, the length direction of the armature assembly is the length direction of the armature in the armature assembly; the driving part is provided with a push groove with an opening toward the elastic part, and the extension direction of the push groove is parallel to the length direction of the armature assembly; the end of the elastic part away from the fixed part is inserted into the push groove, and during the rotation of the driving part, the groove wall of the push groove drives the elastic part to swing, thereby closing or disconnecting the dynamic contact and the static contact, which is easy to install and produce.

[0031] In technical solution 12 and its preferred embodiment, the fixed part and the elastic part are connected as one, and the elastic part is easy to process; the elastic part is provided with an abutment wall suitable for abutting against the groove wall of the push groove, and the end of the abutment wall away from the elastic part is provided with a guide part that is gradually inclined toward the bottom of the push groove toward the static contact part. On the one hand, it is conducive to guiding the elastic part to plug and match with the push groove, avoiding the elastic part from being inserted into the groove wall of the push groove to generate scrapes, and the structure is simple and easy to assemble. On the other hand, it is more conducive to the deformation of the elastic part when the dynamic contact and the static contact are closed.

[0032] In technical solution thirteen and its preferred embodiment, when the moving contact is disconnected from the static contact, the groove wall of the push groove pushes the abutment wall to drive the elastic part to deform. In this technical solution, the width of the two groove walls of the push groove used for the contact position with the elastic part is smaller than the width of other positions of the driving part. On the one hand, the overall strength of the driving part is guaranteed, and on the other hand, the contact width and contact area between the push groove and the elastic part are reduced, the gap friction is small, and jamming is avoided.

[0033] In technical solution fourteen and its preferred embodiment, the contact part and the coil winding are respectively located on both sides of the second plane along the X-axis direction, so that the contact part and the coil winding are far away from each other in the X-axis direction, so that the electrical distance between the weak-current terminal of the coil assembly and the strong-current terminal of the contact part is maintained in a larger range, thereby improving the electrical isolation problem and facilitating the isolation of strong and weak-current terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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.

[0035] Figure 1 This is a three-dimensional exploded view of the relay according to an embodiment of the present application;

[0036] Figure 2 Schematic diagram of the magnetic circuit part and the contact part in the base of the embodiment of the present application Figure 1 , wherein the armature assembly rotates to a first position;

[0037] Figure 3 Schematic diagram of the magnetic circuit part and the contact part in the base of the embodiment of the present application Figure 2 , wherein the armature assembly rotates to a second position;

[0038] Figure 4 A top view of the armature assembly according to an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of a movable reed and an elastic member according to an embodiment of the present application;

[0040] Figure 6 Schematic diagram of the magnetic circuit part and the contact part of an embodiment of the present application;

[0041] Figure 7 for Figure 6 a front view of the armature assembly with the armature assembly rotated to a first position;

[0042] Figure 8 for Figure 6 , wherein the armature assembly is rotated to the second position.

[0043] Description of main reference numerals:

[0044] Container 10; base 11; bottom wall 111; first insertion hole 1111; first side wall 112; partition wall 113; through opening 1131; first slot 114; first positioning slot 1141; matching slot 1142; second slot 115; second positioning slot 1151; limiting strip 1152; support base 116; outer cover 12; fixing frame 13; second insertion hole 131; magnetic circuit portion 100; coil assembly 20; coil frame 21; retaining wall 211; coil winding 22; yoke 23; magnetic drive end 231; first magnetic drive end 232; second magnetic drive end 233; 33; signal terminal 01; armature assembly 30; armature 31; first armature 32; first attraction portion 321; second armature 33; second attraction portion 331; insulating member 34; plug shaft 341; driving portion 35; pushing groove 351; contact portion 200; moving contact member 40; moving spring 41; swinging portion 411; contact portion 42; moving contact point 43; static contact member 50; static contact point 51; elastic member 60; fixing portion 61; elastic portion 62; abutting wall 621; guide portion 622; second axis 03; fixing member 70; avoidance groove 71; connecting terminal 02. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] In the claims and the description, unless otherwise defined, the terms "include", "have" and their variations mean "including but not limited to".

[0050] 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.

[0051] In the claims and the specification, unless otherwise defined, the term "support" means that the weight of an object will act on another object.

[0052] 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.

[0053] 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.

[0054] See also Figure 1 , Figure 1 The structure of a relay is shown. The relay includes an accommodating part 10 , a magnetic circuit part 100 and a contact part 200 .

[0055] A relay is used to receive electrical signals to control the on / off state of an external circuit. Specifically, the relay in this embodiment is a magnetic latching relay, which controls the on / off state 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 state of the external circuit, respectively.

[0056] The container 10 includes a base 11, an outer cover 12 and a fixing frame 13. Figure 11 and 12. The structure of the base 11 and the outer cover 12 in this embodiment is shown in FIG. The base 11 is a box-shaped structure with one end open. The length direction of the base 11 is the X-axis direction, the width direction is the Y-axis direction, and the height direction is the Z-axis direction. In this embodiment, one end of the base 11 along the Z-axis direction is open, and the outer cover 12 is arranged outside the base 11 and is fixedly connected to the base 11. In this embodiment, the opening is located at the upper end of the base 11. The base 11 is provided with a bottom wall 111 perpendicular to the Z-axis direction and a first side wall 112 perpendicular to the Y-axis direction; a partition wall 113 is provided inside the base 11, and the partition wall 113 divides the base 11 into a first groove 114 and a second groove 115 along the X-axis direction. The partition wall 113 is close to the first groove 114. The side wall 112 is provided with a through opening 1131, and the bottom wall 111 forms the bottom of the first groove 114 and the second groove 115, wherein the width of the second groove 115 along the X-axis direction is greater than the width of the first groove 114 along the X-axis direction. The inner cavities of the first groove 114 and the second groove 115 are both rectangular structures. The first groove 114 is provided with a first positioning groove 1141 and a matching groove 1142. The first positioning groove 1141 is located at one end of the first groove 114 along the Y-axis direction, and the matching groove 1142 is located at the other end of the first groove 114 along the Y-axis direction; the bottom of the second groove 115 is provided with a protruding shaft near the partition wall 113, and a first socket 1111 extending along the Z-axis direction is formed in the protruding shaft. Two L-shaped second positioning grooves 1151 are also arranged in the second groove 115 along the Y-axis direction. The second positioning groove 1151 can limit the yoke 23 described below along the X-axis and Y-axis directions. The second groove 115 is away from the side of the first groove 114. Figure 1 On the center right side, a plurality of limit bars 1152 are provided, extending along the X-axis and arranged along the Y-axis. Limit bars 1152 have arc-shaped surfaces and are adapted to abut against coil windings 22, described below, to limit rightward sliding of coil windings 22. Base 11 also has a support seat 116 positioned in second slot 115, near bulkhead 113.

[0057] The outer cover 12 is a rectangular parallelepiped structure, which is similar in length, width and height to the base 11 but slightly larger than the base 11. One end along the Y-axis is open. The outer cover 12 can be inserted into the outside of the base 11 along the Y-axis and sealed and fixed to the base 11 to block the opening of the base 11.

[0058] The fixing frame 13 is supported on the support base 116 and fixed to the support base 116. The fixing frame 13 is provided with a second socket 131 coaxial with the first socket 1111. After the outer cover 12 is fixed to the base 11, the fixing frame 13 is also limited by the outer cover 12 in the Z-axis direction.

[0059] See also Figure 2-3 , Figure 2-3A schematic diagram shows the magnetic circuit portion 100 installed in the accommodating member 10 . The magnetic circuit portion 100 (except for the signal terminal 01 and the driving portion 35 described below) is basically accommodated in the second slot 115 . The magnetic circuit portion 100 includes a coil assembly 20 and an armature assembly 30 .

[0060] Figure 1 FIG. 2 shows a schematic diagram of the three-dimensional structure of the coil assembly 20. Figure 2-3 In the figure, the coil assembly 20 is placed in the second slot 115 and supported on the bottom of the second slot 115, that is, supported on the bottom wall 111. The coil assembly 20 includes a coil frame 21, a coil winding 22, an iron core (not shown in the figure), and two yokes 23. The coil frame 21 is fixed in the second slot 115. The coil frame 21 extends along the Y-axis and has a center hole (not shown in the figure) extending along the Y-axis. The coil frame 21 has retaining walls 211 at both ends along the Y-axis. The coil winding 22 is wound on the coil frame 21 and is located between the two retaining walls 211. Therefore, the coil winding 22 also extends along the Y-axis. The coil winding 22 is connected to the signal terminal 01, which is fixed to the retaining wall 211 of the coil frame 21 and passes through the first side wall 112 along the Y-axis. The iron core extends along the Y-axis and is inserted into the center hole of the coil frame 21. The two yokes 23 are respectively fixed to the two ends of the iron core, and the ends of the two yokes 23 away from the iron core respectively form magnetic drive ends 231 perpendicular to the X-axis direction. The two magnetic drive ends 231 are arranged along the Y-axis direction, and the two magnetic drive ends 231 are respectively a first magnetic drive end 232 and a second magnetic drive end 233. When the signal terminal 01 receives a pulse electrical signal, the polarities of the first magnetic drive end 232 and the second magnetic drive end 233 are opposite, and when the signal terminal 01 switches to receive the first pulse electrical signal and the second pulse electrical signal, the first magnetic drive end 232 and the second magnetic drive end 233 change between the S pole and the N pole respectively.

[0061] See also Figure 1-4 , Figure 4 The structure of the armature assembly 30 is specifically shown in FIG. The armature assembly 30 rotates along the first axis in response to the polarity change of the magnetic drive end 231. Figure 1-3 In this embodiment, the armature assembly 30 rotates between the first position and the second position. The first axis of the armature assembly 30 and the axis of the coil winding 22 are spaced apart along the X-axis.

[0062] like Figure 4 As shown, in this embodiment, the armature assembly 30 includes a permanent magnet ( Figure 4(not shown), two armatures 31 and an insulating member 34, the permanent magnet is formed of magnetized magnetic steel. In other embodiments, the permanent magnet can also be made of other permanent magnetic materials, such as neodymium iron boron permanent magnets. The permanent magnet has two magnetic poles with fixed polarity, and the polarity of the two magnetic poles is opposite. The two armatures 31 are respectively fixed to the two magnetic poles of the permanent magnet. Each armature 31 is provided with two attracting parts suitable for attracting the magnetic drive end 231. When the magnetic circuit part 100 is in the magnetic holding state, the coil winding 22 is not energized, and the two armatures 31 each have an attracting part that attracts the corresponding magnetic drive end 231 to form a closed magnetic circuit passing through the two magnetic drive ends 231. In this embodiment, the two armatures 31 are respectively a first armature 32 and a second armature 33. The two ends of the first armature 32 in the length direction are respectively provided with two first attracting parts 321; the two ends of the second armature 33 in the length direction are respectively provided with two second attracting parts 331. The length of the first armature 32 is longer than the length of the second armature 33.

[0063] The insulating member 34 is fixedly connected to the permanent magnet and the two armatures 31. Exemplarily, the insulating member 34 may be an injection-molded part. The insulating member 34 encapsulates the two armatures 31 and the permanent magnet to form a single unit. Both ends of the first armature 32 and the second armature 33 are located outside the insulating member 34. Protruding from both sides of the insulating member 34 along the Z-axis, near the first armature 32, are inserted shafts 341 extending along the Z-axis. The two inserted shafts 341 are coaxial and form the first axis of the armature assembly 30. Therefore, the first axis is closer to the side where the first armature 32 is located along the width of the armature assembly 30. The first axis is centered along the length of the armature assembly 30. In other possible examples, the first axis may also be centered between the first armature 32 and the second armature 33 along the width of the armature assembly.

[0064] A drive portion 35 is provided on the side of the insulating member 34 proximal to the first armature 32. That is, the drive portion 35 is provided on one side of the armature assembly 30 in the width direction. The width direction of the armature assembly 30 corresponds to the arrangement direction of the two armatures 31 in the armature assembly 30. The drive portion 35 is adapted to swing within the first plane. The drive portion 35 is provided with a push slot 351 opening upward. The push slot 351 extends parallel to the length direction of the armature assembly 30. The length direction of the armature assembly 30 corresponds to the length direction of the armature 31 in the armature assembly 30. Figure 4 In the embodiment, the width of the two groove walls of the pushing groove 351 at the position for contacting the elastic portion 62 described below is smaller than the width of other positions of the driving portion 35 .

[0065] Referring to 1-3, the contact portion 200, except for the connection terminal 02 described below, is accommodated in the first groove 114. The contact portion 200 includes a movable contact 40, a fixed member 70, a static contact 50, and an elastic member 60. One end of the movable contact 40 along its length direction is fixed to the first positioning groove 1141, and the other end is suitable for swinging and is provided with a movable contact 43. The movable contact 43 is suitable for closing or opening with the static contact 50. In this embodiment, the movable contact 40 includes at least two superimposed movable springs 41, see Figure 5-6 , Figure 5 The structure of the movable reed 41 is shown in FIG. Figure 6 The specific structure of the moving contact 40 is shown in the figure, each moving reed 41 is provided with a swinging portion 411, and each swinging portion 411 is provided with a rivet hole 412 for riveting the moving contact 43. The moving contact 43 is riveted to the rivet hole 412 of the swinging portion 411 of each moving reed 41, and the swinging portion 411 of each moving reed 41 is fixedly connected to the moving contact 43 and forms the contact portion 42 of the moving contact 40, wherein the swinging portion 411 of the moving reed 41 on the side of the moving contact 40 facing away from the moving contact 43 is connected to the elastic member 60 described below, therefore, the moving contact 40 is provided with a contact portion 42, and the contact portion 42 of the moving contact 40 is suitable for swinging and is provided with a moving contact 43. Figure 2-3 In the embodiment, the fixing member 70 avoids the moving contact 43 and is fixedly connected to the moving contact 40 and penetrates the first side wall 112 to form the connecting terminal 02. The fixing member 70 is provided with a downward-opening avoidance groove 71 near the moving contact 43, and the avoidance groove 71 allows the driving portion 35 to pass through. In this embodiment, the fixing member 70 is fixedly connected to the fixed end of the moving contact 40 and cooperates with the first positioning groove 1141 of the base 11 to be fixed within the accommodating member 10. It is located on the side of the moving contact 40 away from the static contact 50. When current is passed, the current direction of the fixing member 70 is opposite to that of the moving contact 40. The Ampere force generated by the fixing member 70 on the moving contact 40 helps to increase the contact pressure between the moving contact 40 and the static contact 50, thereby preventing the moving contact 43 and the static contact 51 (hereinafter referred to as "51") from disconnecting and exploding due to electrostatic repulsion when a large fault current occurs. It should be understood that in other embodiments, the movable contact 40 may also include only one movable spring 41 . In this case, the swinging portion 411 of the movable spring 41 is fixedly connected to the movable contact point 43 to form the contact portion 42 of the movable contact 40 .

[0066] The static contact 50 extends along the Y-axis direction and is fixed in the matching groove 1142. The static contact 50 is provided with a static contact 51 and another connecting terminal 02 passing through the first side wall 112; the moving contact 43 and the static contact 51 are suitable for closing or opening along the X-axis direction.

[0067] In this embodiment, the driving part 35 drives the movable contact member 40 to swing by driving the elastic member 60. Figure 5 , Figure 5The structure of the elastic member 60 is shown. The elastic member 60 has a fixed portion 61 and an elastic portion 62 connected as one body; see Figure 6 , Figure 6 A schematic diagram of the magnetic circuit portion 100 and the contact portion 200 is shown. The fixed portion 61 is fixedly connected to the movable contact 40. In this embodiment, the fixed portion 61 is fixedly connected to the contact portion 41. The elastic portion 62 is used to abut against the driving portion 35 and is adapted to rotate and deform about the second axis O3 when the driving portion 35 rotates, thereby providing a contact reaction force to the movable contact 40 toward the static contact 50. The second axis O3 is parallel to the first plane or at a predetermined angle. In this embodiment, the second axis O3 is parallel to the first plane and perpendicular to the first axis. Figure 2-3 In the embodiment, the second axis O3 is parallel to the length of the movable contact 40, and the first axis is parallel to the width of the movable contact 40. It should be understood that in other embodiments, when the second axis O3 forms a predetermined angle with the first plane, the predetermined angle does not include a right angle and does not exceed 20°. In other embodiments, the fixing portion 61 may be fixedly connected to the driving portion 35, while the elastic portion 62 abuts against the movable contact 40.

[0068] In this embodiment, the fixed portion 61 is connected to the swinging portion 411 of the moving spring 41 on the side of the moving contact 40 away from the moving contact 43, and the fixed portion 61 extends to the side of the moving contact 43 along the width direction of the moving contact 40; the elastic portion 62 and the moving contact 43 are located on the same side of the fixed portion 61 along the width direction of the moving contact 40, and along the width direction of the moving contact 40, the elastic portion 62 does not exceed the edge of the moving contact 40; along the length direction of the moving contact 40, the moving contact 43 is located between the elastic portion 62 and the fixed end of the moving contact 40, and the elastic portion 62 and the contact portion 42 are separated by a circular arc gap, and the bending direction of the circular arc gap matches the bending direction of the outer peripheral wall of the moving contact 43. The end of the elastic portion 62 away from the fixed portion 61 is suitable for inserting into the pushing groove 351, and the elastic portion 62 is provided with an abutment wall 621 suitable for abutting against the groove wall of the pushing groove 351, and the end of the abutment wall 621 away from the elastic portion 62 is provided with a guide portion 622 gradually inclined toward the bottom of the pushing groove 351 and approaching the static contact member 50.

[0069] The assembly process of the relay of this embodiment is as follows:

[0070] Insert the static contact 50 into the matching groove 1142 from the opening and have one end pass through the first side wall 112 to form one of the connection terminals 02;

[0071] Place the armature assembly 30 into the base 11 through the opening. Insert the insertion shaft 341 of the armature assembly 30 into the first insertion hole 1111. The driving portion 35 of the armature assembly 30 passes through the through-opening 1131 of the partition wall 113 and extends into the first groove 114.

[0072] Insert the fixed end of the movable contact 40 into the first positioning groove 1141 from the opening. The fixing member 70 penetrates the first side wall 112 to form another connecting terminal 02. The bottom end of the elastic portion 62 of the elastic member 60 is inserted into the pushing groove 351 of the driving portion 35.

[0073] Place the coil assembly 20 into the second slot 115 through the opening, with the signal terminal 01 of the coil assembly 20 passing through the first side wall 112 . The coil winding 22 abuts against the limiting bar 1152 , and the two yokes 23 are respectively inserted into the two second positioning slots 1151 .

[0074] Then, the base 11 is inserted into the outer cover 12 along the Y-axis direction and fixed to the outer cover 12 ; it should be understood that in actual operation, the installation sequence of the static contact 50 , the coil assembly 20 and the armature assembly 30 can be adjusted as needed.

[0075] After installation, the contact portion 200 and the coil winding 22 are respectively located on both sides of the second plane in the X-axis direction, and the second plane is perpendicular to the X-axis direction and passes through the first axis.

[0076] The working process of this embodiment is as follows:

[0077] When the signal terminal 01 receives the first pulse signal, the coil assembly 20 drives the armature assembly 30 to rotate from the second position to the first position. Figure 2 and Figure 7 , Figure 7 FIG. 3 shows a schematic diagram of the contact portion 200 when the armature assembly 30 rotates to the first position, wherein one of the first attracting portions 321 attracts the first magnetic drive end 232 , and one of the second attracting portions 331 attracts the second magnetic drive end 233 , and the driving portion 35 drives the movable contact 43 and the static contact 51 to close;

[0078] When the signal terminal 01 receives the second pulse signal, the polarity of the two yokes 23 in the coil assembly 20 changes, and drives the armature assembly 30 to rotate from the first position to the second position, see Figure 2 and Figure 8 , Figure 8 , a schematic diagram of the contact portion 200 is shown when the armature assembly 30 rotates to the second position, another second attraction portion 331 attracts the first magnetic drive end 232, another first attraction portion 321 attracts the second magnetic drive end 233, and the drive portion 35 drives the moving contact 43 to disconnect from the static contact 51.

[0079] In this embodiment, the contact portion 200 and the coil winding 22 are respectively located on both sides of the second plane along the X-axis direction, so that the contact portion 200 and the coil winding 22 are far away from each other in the X-axis direction, so that the electrical distance between the weak-current terminal of the coil assembly 20 and the strong-current terminal of the contact portion 200 is maintained in a larger range, thereby improving the electrical isolation problem and facilitating the isolation of strong and weak-current terminals.

[0080] In this embodiment, the second axis 03 is at a preset angle to the first plane, wherein the preset angle does not include a right angle; since the armature assembly 30 rotates around the first axis based on the polarity change of the coil assembly 20, a driving portion 35 is provided on one side of the width direction of the armature assembly 30. Therefore, although the driving portion 35 has a large movement component in the length direction of the armature assembly 30 during rotation, it will not move in the extension direction of the first axis, and the driving portion 35 occupies a small space in the extension direction of the first axis and the extension direction of the moving contact 40; the fixed portion 61 is fixedly connected to one of the driving member and the moving contact 40, and the elastic portion 62 is in contact with the other of the driving member and the moving contact 40, and is suitable for rotating around the second axis 03 and deforming when the driving portion 35 rotates, so as to provide the moving contact 40 with a contact reaction force toward the static contact 50. The second axis 03 is parallel to the first plane or at a preset angle. Therefore, in the process of the driving portion 35 driving the elastic member 60 to move, the elastic member 60 is subjected to The force arm basically does not change or changes very little, the elastic coefficient of the elastic member 60 remains stable or relatively stable, and the elastic force changes linearly without sudden changes. Therefore, the magnetic driving force during the closing process of the moving contact 40 and the static contact 50 and the magnetic driving force during the disconnection process of the moving contact 40 and the static contact 50 are both set with a basically stable elastic force as a reference, wherein the magnetic driving force during the closing process of the moving contact 40 and the static contact 50 will not be set larger due to the large elastic force finally formed, so that the driving power consumption of the coil assembly 20 and the permanent magnet of the armature assembly 30 can be smaller, and the driving force during the disconnection process of the moving contact 40 and the static contact 50 can also be normally set based on the appropriate reaction force of the elastic member 60, thereby ensuring the disconnection process, the coil assembly 20 has good anti-magnetic interference strength, and the above-mentioned setting can also easily control the required magnetic driving force and ensure that the moving contact 40 can be reliably driven to resist or move away from the static contact 50. The armature assembly 30 directly forms the drive part 35. Compared with the traditional split structure, direct molding is more convenient and cost-effective. At the same time, direct molding also makes it unnecessary to set a push card between the armature assembly 30 and the elastic part 60, which is beneficial to avoid the vibration between the push card and the armature assembly 30, which causes the dynamic contact 40 to shake when it is disconnected, resulting in unreliable disconnection. Specifically, this solution realizes the feature of a rigid connection without idle travel between the drive part 35 and the armature 31, eliminates the idle travel jitter of the push card and the armature 31, and reduces the jitter of the disconnecting dynamic contact 40 in an extremely simple and economical way.

[0081] In this embodiment, the second axis 03 is parallel to the first plane and perpendicular to the first axis. Compared with the second axis 03 forming a preset angle with the first plane, on the one hand, it is easier to reduce the space required by the elastic member 60 and the moving contact 40 in the length direction of the moving contact 40, thereby reducing the volume of the relay. On the other hand, it is more conducive to reducing the change in the force arm of the elastic member 60 during the driving process, so that the elastic coefficient remains stable or relatively stable during the closing or opening process of the moving contact 43 and the static contact 50.

[0082] In this embodiment, the preset angle does not exceed 20°. Compared with a large angle, it is easier to reduce the space required by the elastic member 60 and the moving contact 40 in the length direction of the moving contact 40, thereby reducing the volume of the relay. It is also more conducive to reducing the change in the force arm of the elastic member 60 during the driving process, so that the elastic coefficient changes less during the closing or opening process of the moving contact 43 and the static contact 50.

[0083] In this embodiment, the second axis 03 is parallel to the length direction of the moving contact 40, and the first axis is parallel to the width direction of the moving contact 40. Compared with the second axis 03 being at an angle to the length direction of the moving contact 40 and the first axis being at an angle to the width direction of the moving contact 40, the elastic force of the elastic member 60 is easier to be transmitted to the moving contact 40, which is more conducive to reducing the magnetic driving force required during the closing process of the moving contact 40 and the static contact 50.

[0084] In this embodiment, the fixed portion 61 is fixedly connected to the dynamic contact 40, and the elastic portion 62 abuts against the driving portion 35; the dynamic contact 40 is provided with a dynamic contact point 43; the elastic portion 62 and the dynamic contact point 43 are located on the same side of the fixed portion 61 along the width direction of the dynamic contact 40, so that the space occupied by the elastic portion 60 in the width direction of the dynamic contact 40 is mainly the space occupied by the dynamic contact 40, so that the space occupied by the dynamic contact 40 and the elastic portion 60 in the width direction of the dynamic contact 40 of this application can be set to be smaller.

[0085] In this embodiment, along the width direction of the moving contact 40, the elastic part 62 does not exceed the edge of the moving contact 40, so the space occupied by the elastic part 60 in the width direction of the moving contact 40 is small, so that the space occupied by the moving contact 40 and the elastic part 60 in the width direction of the moving contact 40 of the present application can be set to be smaller, and when the elastic part 60 cooperates with the driving part 35, it is easier to reduce the height of the relay in the width direction of the moving contact 40; in addition, after such arrangement, the width direction of the elastic part 60 is consistent with or at an angle to the length direction of the moving contact 40, so increasing the width of the elastic part 60 will not increase the volume of the relay too much, and a larger width of the elastic part 60 can enable the elastic part 60 to provide a greater contact pressure to the moving contact 40, thereby improving the connection reliability of the moving contact 43 and the static contact 51.

[0086] In this embodiment, the fixed portion 61 is fixedly connected to the contact portion 42, and the structure is simpler; the fixed portion 61 is connected as a whole with the swinging portion 411 of the movable spring piece 41 on the side of the movable contact 40 facing away from the movable contact point 43, and the structure is simpler and easy to produce and process; the movable contact 40 is composed of at least two movable spring pieces 41 stacked together, which increases the current carrying capacity and elastic deformation capacity.

[0087] In this embodiment, along the length direction of the moving contact 40, the moving contact 43 is located between the elastic portion 62 and the fixed end of the moving contact 40. Compared with the case where the moving contact 43 is located between the contact portion 42 and the fixed end of the moving contact 40, when closed, the contact pressure of the moving contact 43 is greater, and the moving contact 43 is less likely to separate from the static contact 51, thereby improving the connection reliability between the moving contact 43 and the static contact 50.

[0088] In this embodiment, the fixing portion 61 extends to one side of the moving contact 43 along the width direction of the moving contact 40, effectively utilizing the space on both sides of the moving contact 43 and extending the length of the fixing portion 61 as much as possible so that the fixing portion 61 and the moving contact 40 have a larger connection area, reducing stress concentration, reducing fatigue damage, and improving service life.

[0089] In this embodiment, along the length direction of the moving contact 40, the elastic portion 62 and the contact portion 42 are separated by an arc-shaped gap, and the bending direction of the arc-shaped gap matches the bending direction of the outer wall of the moving contact 43. The elastic portion 62 makes more reasonable use of space to design its shape based on the shape of the moving contact, so that the length of the first end of the elastic portion 62 is longer, the effect of dispersing stress is better, fatigue failure is avoided, and the service life is improved.

[0090] In this embodiment, the driving part 35 is provided with a pushing groove 351 with an opening toward the elastic part 62, and the extension direction of the pushing groove 351 is parallel to the extension direction of the dynamic contact 40; the end of the elastic part 62 away from the fixed part 61 is inserted into the pushing groove 351. During the rotation of the driving part 35, the groove wall of the pushing groove 351 drives the elastic part 62 to swing, thereby closing or disconnecting the dynamic contact 40 and the static contact 50, which is easy to install and produce.

[0091] In this embodiment, the fixed portion 61 and the elastic portion 62 are connected as one body, and the elastic member 60 is easy to process; the elastic portion 62 is provided with an abutting wall 621 suitable for abutting against the groove wall of the pushing groove 351, and the abutting wall 621 is provided with an end away from the elastic portion 62. The guide portion 622 is gradually inclined toward the bottom of the pushing groove 351 toward the static contact 50. On the one hand, it is conducive to guiding the elastic portion 62 to plug and match with the pushing groove 351, avoiding the elastic portion 62 from being inserted into the groove wall of the pushing groove 351 to generate scraping, and the structure is simple and easy to assemble. On the other hand, it is more conducive to the deformation of the elastic portion 62 when the dynamic contact 40 and the static contact 50 are closed.

[0092] In this embodiment, when the moving contact 43 is disconnected from the static contact 50, the groove wall of the pushing groove 351 pushes the abutting wall 621 to drive the elastic part 62 to deform. In this technical solution, the width of the two groove walls of the pushing groove 351 used for the contact position with the elastic part 62 is smaller than the width of other positions of the driving part 35. On the one hand, the overall strength of the driving part 35 is guaranteed, and on the other hand, the contact width and contact area between the pushing groove 351 and the elastic part 62 are reduced, the gap friction is small, and jamming is avoided.

[0093] 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. A relay comprising a housing (10), a magnetic circuit portion (100), and a contact portion (200), wherein the magnetic circuit portion (100) comprises an armature assembly (30), the armature assembly (30) rotating about a first axis; the contact portion (200) comprises a stationary contact (50) and a movable contact (40), the stationary contact (50) being fixed relative to the housing (10), and the movable contact (40) having one end along its length fixed relative to the housing (10) and the other end adapted to swing so as to close or open the movable contact (40) and the stationary contact (50), wherein: The contact portion (200) further includes an elastic member (60); A driving portion (35) is provided on one side of the armature assembly (30) in the width direction, and the driving portion (35) is suitable for swinging in a first plane; The driving part (35) drives the elastic part (60) to swing the movable contact part (40), and the elastic part (60) has a fixed part (61) and an elastic part (62); the fixed part (61) is fixedly connected to one of the driving part (35) and the movable contact part (40), and the elastic part (62) is in contact with the other of the driving part (35) and the movable contact part (40), and is suitable for rotating around a second axis (03) and deforming when the driving part (35) rotates, so as to provide a contact reaction force toward the static contact part (50) to the movable contact part (40), and the second axis (03) is parallel to the first plane or forms a preset angle with the first plane.

2. A relay as claimed in claim 1, characterized in that: The second axis (03) is parallel to the first plane and perpendicular to the first axis.

3. A relay as claimed in claim 1, characterized in that: The preset angle does not exceed 20°.

4. A relay as claimed in claim 2, characterized in that: The second axis (03) is parallel to the length direction of the moving contact (40), and the first axis is parallel to the width direction of the moving contact (40).

5. A relay as claimed in claim 4, characterized in that: The fixed portion (61) is fixedly connected to the movable contact (40), and the elastic portion (62) abuts against the driving portion (35); the movable contact (40) is provided with a movable contact point (43); the elastic portion (62) and the movable contact point (43) are located on the same side of the fixed portion (61) along the width direction of the movable contact (40).

6. A relay as claimed in claim 5, characterized in that: Along the width direction of the movable contact (40), the elastic portion (62) does not exceed the edge of the movable contact (40).

7. A relay as claimed in claim 6, characterized in that: Along the length direction of the moving contact (40), the moving contact point (43) is located between the elastic portion (62) and the fixed end of the moving contact (40).

8. A relay as claimed in claim 7, characterized in that: The fixing portion (61) extends to one side of the movable contact (43) along the width direction of the movable contact member (40).

9. A relay as claimed in claim 8, characterized in that: The movable contact (40) is provided with a contact portion (42), the contact portion (42) is suitable for swinging and is provided with the movable contact (43), the static contact (50) is provided with a static contact (51), the movable contact (43) is suitable for closing or disconnecting with the static contact (51); the fixed portion (61) is fixedly connected to the contact portion (42); along the length direction of the movable contact (40), the elastic portion (62) and the contact portion (42) are separated by an arc-shaped gap, and the bending direction of the arc-shaped gap matches the bending direction of the outer peripheral wall of the movable contact (43).

10. A relay as claimed in claim 9, characterized in that: The movable contact (40) comprises at least two superimposed movable springs (41), each movable spring (41) being provided with a swinging portion (411), the swinging portion (411) of each movable spring (41) being fixedly connected to the movable contact (43) and forming the contact portion (42), and the fixed portion (61) being integrally connected to the swinging portion (411) of the movable spring (41) on the side of the movable contact (40) facing away from the movable contact (43).

11. A relay according to any one of claims 5 to 10, characterized in that: The driving portion (35) is provided with a pushing groove (351) opening toward the elastic portion (62), and the extending direction of the pushing groove (351) is parallel to the length direction of the armature assembly (30); the fixing portion (61) and the elastic portion (62) are connected as a whole, and the end of the elastic portion (62) away from the fixing portion (61) is inserted into the pushing groove (351).

12. A relay as claimed in claim 11, characterized in that: The elastic portion (62) is provided with an abutting wall (621) suitable for abutting against the groove wall of the pushing groove (351), and one end of the abutting wall (621) away from the fixed portion (61) is provided with a guide portion (622) that is gradually inclined toward the groove bottom of the pushing groove (351) and close to the static contact member (50).

13. A relay as claimed in claim 12, characterized in that: The width of the two groove walls of the pushing groove (351) at the position where they are in contact with the elastic portion (62) is smaller than the width of other positions of the driving portion (35).

14. A relay as claimed in claim 1, characterized in that: The magnetic circuit portion (100) further includes a coil assembly (20), wherein the coil assembly (20) is provided with a coil winding (22) extending along the Y-axis direction and two magnetic drive ends (231) arranged along the Y-axis direction; the contact portion (200) and the coil winding (22) are respectively located on both sides of a second plane in the X-axis direction, and the second plane is perpendicular to the X-axis direction and passes through the first axis.

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