Relay

Abstract

Provided in the present disclosure is a relay. A magnetic circuit part comprises an armature assembly, the armature assembly rotating around a first axis; a contact part comprises a static contact member and a movable contact member, and the contact part further comprises an elastic member. A side of the armature assembly in the width direction is provided with a driving part, the driving part being adapted to swing in a first plane; and by means of driving the elastic member, the driving part drives the movable contact member to swing. The elastic member has a fixed portion and an elastic portion; the fixed portion is fixedly connected to one of the driving part and the movable contact member; and the elastic portion abuts against the other of the driving part and the movable contact member, and is adapted to, when the driving part swings, rotate around a second axis to deform, so as to provide the movable contact member with a contact pressure towards the static contact member. The second axis is parallel to the first plane or forms a preset acute angle with same. In the present disclosure, when the movable contact member and the static contact member are closed, a required drive power of the coil assembly is relatively small, or the required sizes of the coil assembly and the armature assembly are relatively small; and during the process of opening the movable contact member and the static contact member, the coil assembly has a good anti-magnetic interference effect and achieves reliable breaking.

Description

Relay

[0001] The present disclosure claims priority to Chinese Patent Application No. 202422374069.2, filed on September 27, 2024, the entire contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present disclosure relates to a relay. BACKGROUND

[0003] The relay generally comprises a contact part, the contact part comprising a static contact piece and a dynamic contact piece group, the static contact piece being provided with a static contact point, the dynamic contact piece group generally comprising a dynamic contact piece and an elastic piece, one end of the dynamic contact piece being fixed to form a fixed end, the other end being formed into a contact part and being able to swing relative to the fixed end, the contact part being provided with a dynamic contact point. The existing elastic piece is generally integrally formed on or riveted to the contact part of the dynamic contact piece, the extension direction of the elastic piece is consistent with the length direction of the dynamic contact piece, and the armature assembly drives the elastic piece through the swing arm thereon, so as to drive the contact part of the dynamic contact piece to move to make the dynamic contact point and the static contact point close or disconnect. It is found in practice that the relay with such a structure requires a larger driving power of the coil assembly when the dynamic contact point and the static contact point are closed, or requires a larger volume of the coil assembly and the armature assembly; and in the process of disconnecting the dynamic contact point and the static contact point, the coil assembly has a poor anti-magnetic interference effect and the disconnection is unreliable. SUMMARY

[0004] The present disclosure aims to overcome the above-mentioned defects or problems existing in the background art, and to provide a relay, which requires a smaller driving power of the coil assembly when the dynamic contact point and the static contact point are closed, or requires a smaller volume of the coil assembly and the armature assembly; and in the process of disconnecting the dynamic contact point and the static contact point, the coil assembly has a good anti-magnetic interference effect and the disconnection is reliable.

[0005] To achieve the above-mentioned purpose, the present disclosure and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0006] The relay comprises a housing, a magnetic circuit part and a contact part. The magnetic circuit part comprises an armature assembly, which rotates around a first axis. The contact part comprises a static contact and a dynamic contact. The static contact is fixed relative to the housing. The dynamic contact is fixed relative to the housing at one end along its length direction and is adapted to swing to close or disconnect the dynamic contact and the static contact. The contact part further comprises an elastic member. The armature assembly is provided with a driving part, which is adapted to swing in a first plane. The driving part drives the elastic member to swing the dynamic contact. The elastic member has a fixed part and an elastic part. The fixed part is fixed to one of the driving part and the dynamic contact. The elastic part is in abutment with the other of the driving part and the dynamic contact and is adapted to rotate around a second axis to deform when the driving part swings, so as to provide a contact pressure of the dynamic contact towards the static contact. The second axis is parallel to the first plane or forms a preset acute angle with the first plane.

[0007] Based on the first aspect, the second aspect is provided. In the second aspect and the preferred embodiments thereof, the second axis is parallel to the first plane and perpendicular to the first axis.

[0008] Based on the first aspect, the third aspect is provided. In the third aspect and the preferred embodiments thereof, the preset acute angle is not more than 20°.

[0009] Based on the second aspect, the fourth aspect is provided. In the fourth aspect and the preferred embodiments thereof, the second axis is parallel to the length direction of the dynamic contact, and the first axis is parallel to the width direction of the dynamic contact.

[0010] Based on the fourth aspect, the fifth aspect is provided. In the fifth aspect and the preferred embodiments thereof, the fixed part is fixed to the dynamic contact, and the elastic part is in abutment with the driving part. The dynamic contact is provided with a dynamic contact point. The elastic part and the dynamic contact point are located on the same side of the fixed part along the width direction of the dynamic contact.

[0011] Based on the fifth aspect, the sixth aspect is provided. In the sixth aspect and the preferred embodiments thereof, along the width direction of the dynamic contact, the elastic part does not exceed the edge of the dynamic contact.

[0012] Based on the sixth aspect, the seventh aspect is provided. In the seventh aspect and the preferred embodiments thereof, along the length direction of the dynamic contact, the dynamic contact point is located between the elastic part and the fixed end of the dynamic contact.

[0013] Based on the seventh aspect, the eighth aspect is provided. In the eighth aspect and the preferred embodiments thereof, the fixed part extends to one side of the dynamic contact point along the width direction of the dynamic contact.

[0014] Based on technical solution eight, technical solution nine is further provided, and in the technical solution nine and preferred embodiments thereof, the movable contact is provided with a contact portion adapted to swing and provided with the movable contact point, the fixed contact is provided with a fixed contact point, the movable contact point is adapted to be closed or disconnected with the fixed contact point; the fixed portion is fixedly connected with the contact portion; along the length direction of the movable contact, the elastic portion and the contact portion are separated by a circular-arc-shaped gap, and the bending direction of the circular-arc-shaped gap matches the bending direction of the outer peripheral wall of the movable contact point.

[0015] Based on technical solution nine, technical solution ten is further provided, and in the technical solution ten and preferred embodiments thereof, the movable contact comprises at least two stacked movable spring sheets, each movable spring sheet is provided with a swing portion, the swing portion of each movable spring sheet is fixedly connected with the movable contact point and forms the contact portion, and the fixed portion is integrally connected with the swing portion of the movable spring sheet on the side of the movable contact away from the movable contact point.

[0016] Based on any one of technical solutions five to ten, technical solution eleven is further provided, and in the technical solution eleven and preferred embodiments thereof, the driving portion is provided with a pushing groove with an opening facing the elastic portion, the extension direction of the pushing groove is parallel to the length direction of the armature assembly; the fixed portion and the elastic portion are integrally connected, and one end of the elastic portion away from the fixed portion is inserted into the pushing groove.

[0017] Based on technical solution eleven, technical solution twelve is further provided, and in the technical solution twelve and preferred embodiments thereof, the elastic portion is provided with an abutting wall adapted to abut against the groove wall of the pushing groove, and one end of the abutting wall away from the elastic portion is provided with a guide portion gradually inclined towards the direction close to the fixed contact from the groove bottom of the pushing groove.

[0018] Based on technical solution twelve, technical solution thirteen is further provided, and in the technical solution thirteen and preferred embodiments thereof, the width of the two groove walls of the pushing groove at the contact position of the elastic portion is smaller than the width of other positions of the driving portion.

[0019] Based on technical solution one, technical solution fourteen is further provided, and in the technical solution fourteen and preferred embodiments thereof, the magnetic circuit portion further comprises a coil assembly, the coil assembly is provided with a coil winding extending along the Y-axis direction and two magnetic driving ends arranged along the Y-axis direction; the contact portion and the coil winding are respectively located on the two 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.

[0020] From the above description of the present disclosure and its preferred embodiments, relative to the prior art, the technical solutions of the present disclosure and its preferred embodiments have the following beneficial effects due to the use of the following technical means:

[0021] The inventor of the present disclosure knows through continuous observation, experiment and research that in the prior art, the causes of the technical problems of "the driving power required by the coil assembly when the moving contact and the stationary contact are closed is large, or the volume of the coil assembly and the armature assembly required is large; during the process of opening the moving contact and the stationary contact, the coil assembly has poor anti-magnetic interference effect and unreliable breaking" are that the extension direction of the elastic member is consistent with the length direction of the moving contact, and the elastic member deforms by rotating around the shaft extending along the width direction of the moving contact. The swing arm extends from one side of the width direction of the armature assembly, and when the swing arm rotates with the armature assembly, the driving end of the swing arm will not only produce an effective displacement for driving the moving contact to move in the on-off direction, but also produce a large movement component in the length extension direction of the moving contact. Therefore, during the rotation of the armature assembly, the stress point of the elastic member acted on by the driving end of the swing arm will change along the length direction of the moving contact. During the process of closing the moving contact and the stationary contact, the force arm of the elastic member continuously decreases, and the elastic coefficient continuously increases. Since the elastic force of the elastic member is inversely proportional to the cube of the length of the force arm, the elastic force of the elastic member increases greatly, which means that the driving force required by the coil assembly needs to be large, so the input driving voltage needs to be large, the driving power consumption is also larger, or the number of ampere turns required by the coil assembly and the volume of the permanent magnet of the armature assembly are also larger, thereby resulting in a large overall volume of the magnetic circuit part. During the process of opening the moving contact and the stationary contact, since the elastic force of the elastic member is large, the elastic force of the elastic member recovering the deformation is also large, which plays a certain driving role in resetting the moving contact, so the driving force provided by the magnetic circuit part is small, thereby resulting in a weak anti-magnetic interference ability of the magnetic circuit part. In addition, in some other prior arts, a push card is arranged between the armature assembly and the elastic member, and the push card is gap-fitted with the armature assembly. During the process of opening the moving contact and the stationary contact, the idle stroke shaking of the push card and the armature assembly will cause the moving contact to shake during breaking, thereby affecting the arc striking characteristics of the breaking arc, increasing the ablation of the contact and the damage of the uncontrolled arc ablation to other parts, and making the breaking unreliable.

[0022] In the technical solution one and the preferred embodiments, the armature assembly rotates around the first axis, and the driving part is adapted to swing in the first plane. Although the driving part has a moving component along the length direction of the movable contact during rotation, it does not move in the extension direction of the first axis, so the driving part occupies a small space in the extension direction of the first axis. In the elastic member, the fixed part is fixedly connected with one of the driving part and the movable contact, and the elastic part abuts against the other one of the driving part and the movable contact, and is adapted to rotate around the second axis and deform when the driving part rotates, so as to provide a contact pressure of the movable contact towards the static contact. Since the elastic part is adapted to rotate around the second axis and deform, the second axis is parallel to the first plane or forms a preset acute angle, wherein the preset acute angle does not include a right angle. Therefore, during movement of the driving part driving the elastic member, the force arm of the elastic member does not change substantially or changes little, the elastic coefficient of the elastic member remains stable or relatively stable, the elastic force changes linearly without sudden change, so that the magnetic driving force during closing of the movable contact and the static contact and the magnetic driving force during opening of the movable contact and the static contact are both set based on a substantially stable elastic force as a reference. The magnetic driving force during closing of the movable contact and the static contact is not set to be large due to the large final elastic force, 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 opening of the movable contact and the static contact can also be normally set based on the appropriate reaction force of the elastic member, thereby ensuring the opening process and the good magnetic interference resistance of the coil assembly, and the above settings can also facilitate control of the required magnetic driving force and ensure reliable driving of the movable contact to abut against or move away from the static contact. In addition, the driving part is directly arranged on the armature assembly, which is more convenient and cost-saving compared with the traditional split structure, and the direct arrangement also eliminates the need for a push card between the armature assembly and the elastic member, thereby facilitating avoidance of shaking of the movable contact during opening due to the existence of shaking between the push card and the armature assembly, and ensuring reliable opening. Specifically, the driving part is rigidly connected with the armature part without an idle stroke, which eliminates the idle stroke shaking between the push card and the armature part, and reduces the shaking of the opened movable contact in a simple and economical manner.

[0023] In the technical solution two and the preferred embodiments, the second axis is parallel to the first plane and perpendicular to the first axis. On the one hand, it is beneficial to reduce the space required by the elastic member and the movable contact in the length direction of the movable contact, thereby reducing the size of the relay. On the other hand, it is also beneficial to reduce the change of the force arm of the elastic member during driving, so that the elastic coefficient remains stable or relatively stable during closing or opening of the movable contact and the static contact.

[0024] In the third aspect and the preferred embodiments, the preset acute angle is not more than 20°, compared with a large included angle, the elastic member and the movable contact need less space in the length direction of the movable contact, thereby reducing the volume of the relay, and more favorably reducing the change of the force arm of the elastic member in the driving process, thereby reducing the change of the elastic coefficient in the closing or opening process of the movable contact and the static contact.

[0025] In the fourth aspect and the preferred embodiments, the second axis is parallel to the length direction of the movable contact, and the first axis is parallel to the width direction of the movable contact, compared with the second axis and the length direction of the movable contact forming an included angle, and the first axis and the width direction of the movable contact forming an included angle, the elastic force of the elastic member is more easily transmitted to the movable contact, thereby more favorably reducing the magnetic driving force required in the closing process of the movable contact and the static contact.

[0026] In the fifth aspect and the preferred embodiments, the fixed part is fixedly connected with the movable contact, and the elastic part abuts against the driving part; the movable contact is provided with a movable contact point; and the elastic part and the movable contact point are located on the same side of the fixed part along the width direction of the movable contact, so that the space occupied by the elastic member in the width direction of the movable contact is mainly the occupied space of the movable contact, thereby making the occupied space of the movable contact and the elastic member in the width direction of the movable contact smaller.

[0027] In the sixth aspect and the preferred embodiments, along the width direction of the movable contact, the elastic part does not exceed the edge of the width direction of the movable contact, so that the space occupied by the elastic member in the width direction of the movable contact is small, thereby making the occupied space of the movable contact and the elastic member in the width direction of the movable contact smaller, and more favorably reducing the height of the relay in the width direction of the movable contact when the elastic member cooperates with the driving part; in addition, after being thus arranged, the width direction of the elastic member is consistent with or forms an included angle with the length direction of the movable contact, so that increasing the width of the elastic member will not excessively increase the volume of the relay, and the larger width of the elastic member can make the elastic member provide greater contact pressure to the movable contact, thereby improving the connection reliability of the movable contact and the static contact.

[0028] In the seventh aspect and the preferred embodiments, along the length direction of the movable contact, the movable contact point is located between the elastic part and the fixed end of the movable contact, and when being closed, the movable contact point has large contact pressure, and the movable contact point is not easy to separate from the static contact, thereby improving the connection reliability of the movable contact and the static contact.

[0029] In the eighth aspect and the preferred embodiments, the fixed part extends to one side of the movable contact along the width direction of the movable contact, effectively utilizing the space on both sides of the movable contact, and as much as possible extending the length of the fixed part, so that the fixed part and the movable contact have a larger connection area, reducing stress concentration, reducing fatigue damage, and improving the service life.

[0030] In the ninth aspect and preferred embodiments thereof, the fixed part is fixedly connected with the contact part, and the structure is simpler. In the length direction of the movable contact, the elastic part and the contact part are separated by a circular-arc-shaped gap, the bending direction of the circular-arc-shaped gap matches the bending direction of the outer peripheral wall of the movable contact, and the elastic part is more reasonably designed in shape based on the shape of the movable contact, so that the length of the first end of the elastic part is longer, the stress dispersion effect is better, fatigue failure is avoided, and the service life is improved.

[0031] In the tenth aspect and preferred embodiments thereof, the fixed part is integrally connected with the swing part of the movable spring sheet on the side of the movable contact away from the movable contact, the structure is simpler, and the production and processing are easier; and the movable contact includes at least two stacked movable spring sheets, and the current-carrying capacity and elastic deformation capacity are increased.

[0032] In the eleventh aspect and preferred embodiments thereof, 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 pushing groove with an opening facing the elastic part, the extension direction of the pushing groove is parallel to the length direction of the armature assembly; and the end of the elastic part away from the fixed part is inserted into the pushing groove, and in the rotation process of the driving part, the groove wall of the pushing groove drives the elastic part to swing, so that the movable contact and the stationary contact are closed or disconnected, and the installation and production and processing are easier.

[0033] In the twelfth aspect and preferred embodiments thereof, the fixed part and the elastic part are integrally connected, and the elastic part is easy to process; the elastic part is provided with an abutment wall adapted to abut against the groove wall of the pushing groove, and the end of the abutment wall away from the elastic part is provided with a guide part gradually inclined toward the direction of the stationary contact from the groove bottom of the pushing groove, which on the one hand is conducive to guiding the elastic part to be inserted into the pushing groove in a fitting manner, avoiding the generation of burrs on the groove wall of the pushing groove when the elastic part is inserted, and on the other hand is more conducive to the deformation of the elastic part when the movable contact and the stationary contact are closed.

[0034] In the thirteenth aspect and preferred embodiments thereof, when the movable contact and the stationary contact are disconnected, the groove wall of the pushing groove pushes the abutment wall to drive the elastic part to deform, and in the present technical solution, the width of the two groove walls of the pushing groove used for the contact position of the elastic part is smaller than the width of other positions of the driving part, which on the one hand ensures the overall strength of the driving part, and on the other hand reduces the contact area of the pushing groove and the elastic part in the pushing process, so that the friction force is small, and jamming is avoided.

[0035] In the fourteenth aspect and preferred embodiments thereof, the contact part and the coil winding are respectively located on the two sides of the second plane along the X-axis direction, so that the contact part and the coil winding are away from each other in the X-axis direction, the electrical distance between the weak electric terminal of the coil assembly and the strong electric terminal of the contact part is kept in a larger range, the electrical isolation problem is improved, and the isolation of the strong and weak electric terminals is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiment description are briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0037] Fig. 1 is a perspective exploded view of a relay according to an embodiment of the present disclosure;

[0038] Fig. 2 is a schematic view of a magnetic circuit portion and a contact portion in a base according to an embodiment of the present disclosure, in which an armature assembly is rotated to a first position;

[0039] Fig. 3 is a schematic view of a magnetic circuit portion and a contact portion in a base according to an embodiment of the present disclosure, in which an armature assembly is rotated to a second position;

[0040] Fig. 4 is a top view of an armature assembly according to an embodiment of the present disclosure;

[0041] Fig. 5 is a schematic view of a moving spring leaf and a resilient member according to an embodiment of the present disclosure;

[0042] Fig. 6 is a schematic view of a magnetic circuit portion and a contact portion according to an embodiment of the present disclosure;

[0043] Fig. 7 is a front view of Fig. 6, in which an armature assembly is rotated to a first position;

[0044] Fig. 8 is a front view of Fig. 6, in which an armature assembly is rotated to a second position.

[0045] Explanation of main reference numerals: 10. housing; 11. base; 111. bottom wall; 1111. first insertion hole; 112. first side wall; 113. partition wall; 1131. through hole; 114. first groove; 1141. first positioning groove; 1142. fitting groove; 115. second groove; 1151. second positioning groove; 1152. limiting strip; 116. support seat; 12. cover; 13. fixing frame; 131. second insertion hole; 100. magnetic circuit part; 20. coil assembly; 21. coil frame; 211. baffle; 22. coil winding; 23. yoke; 231. magnetic driving end; 232. first magnetic driving end; 233. second magnetic driving end; 01. signal terminal; 30. armature assembly; 31. armature; 32. first armature; 321. first attraction part; 33. second armature; 331. second attraction part; 34. insulating piece; 341. insertion shaft; 35. driving part; 351. pushing groove; 200. contact part; 40. movable contact; 41. movable contact piece; 411. swing part; 42. contact part; 43. movable contact point; 50. stationary contact; 51. stationary contact point; 60. elastic piece; 61. fixed part; 62. elastic part; 621. abutting wall; 622. guide part; 03. second axis; 70. fixing piece; 71. avoiding groove; 02. connection terminal. DETAILED DESCRIPTION

[0046] In the claims and specification, the terms "X-axis direction", "Y-axis direction" and "Z-axis direction" only refer to the features having one of the above directions being perpendicular to the features having another direction, and do not require them to be implemented according to the "X-axis direction", "Y-axis direction" and "Z-axis direction" introduced in the embodiments. In the embodiments, the X-axis direction is perpendicular to the Y-axis direction and also perpendicular to the Z-axis direction. Among them, 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.

[0047] In the claims and specification, the terms "first", "second" or "third" and the like are used only to distinguish different objects, and are not used to describe a specific order.

[0048] In the claims and specification, the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation and position relationship shown in the drawings, and are only used for the convenience of simplifying the description, and do not imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation.

[0049] In the claims and specification, unless otherwise defined, the term "fixedly connected" or "fixed connection" shall be construed broadly to include any connection that does not allow movement between the two elements and does not allow relative rotation between the two elements, that is, it includes fixedly connected, detachably fixedly connected, integrated, and fixedly connected through other means or elements.

[0050] In the claims and specification, unless otherwise defined, the terms "comprising", "having", and their variations, mean "including but not limited to".

[0051] In the claims and specification, unless otherwise defined, the term "provided with" means that the technical feature located after it is part of the technical feature located before it.

[0052] In the claims and specification, unless otherwise defined, the term "supported" means that the gravity of an object will act on another object.

[0053] In the claims and specification, unless otherwise defined, the term "integrated" means that the two are directly connected without other parts.

[0054] In the claims and specification, unless otherwise defined, the term "extension direction" refers to the length direction of the object, including the part of the object that is curved or inclined in the length direction.

[0055] Referring to FIG. 1, FIG. 1 shows a structure of a relay, which includes a housing 10, a magnetic circuit portion 100, and a contact portion 200.

[0056] The relay is used to receive an electrical signal to control the on-off of an external circuit. Specifically, the relay in the present embodiment is a magnetic latching relay, which controls the on-off of an external circuit by receiving a pulse electrical signal. In the present embodiment, the pulse electrical signal can be divided into a first pulse electrical signal and a second pulse electrical signal. The first pulse electrical signal and the second pulse electrical signal are used to control the switching or on-off of the external circuit, respectively.

[0057] The accommodating member 10 comprises a base 11, an outer cover 12 and a fixing frame 13. The structure of the base 11 and the outer cover 12 in the embodiment is shown in FIG. 1. 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 the embodiment, the base 11 is open at one end along the Z-axis direction. The outer cover 12 covers the outside of the base 11 and is fixedly connected with the base 11. In the 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. The base 11 is provided with a partition wall 113. 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 provided with a through opening 1131 close to the first side wall 112. The bottom wall 111 forms the groove bottom of the first groove 114 and the second groove 115. 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 cuboid 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. The matching groove 1142 is located at the other end of the first groove 114 along the Y-axis direction. The groove bottom of the second groove 115 is provided with a convex shaft close to the partition wall 113. The convex shaft forms a first insertion hole 1111 extending along the Z-axis direction. The second groove 115 is also provided with two L-shaped second positioning grooves 1151 along the Y-axis direction. The second positioning grooves 1151 can limit the yoke 23 along the X-axis direction and the Y-axis direction. The second groove 115 is further provided with a plurality of limiting strips 1152 extending along the X-axis direction and arranged along the Y-axis direction on the side away from the first groove 114, as shown on the right side in FIG. 1. The limiting strips 1152 have arc-shaped arc surfaces and are suitable for abutting against the coil winding 22 to limit the sliding of the coil winding 22 to the right side. The base 11 is also provided with a support seat 116 located in the second groove 115 close to the partition wall 113.

[0058] The outer cover 12 is a cuboid structure. The length, width and height of the outer cover 12 are similar to those of the base 11 but slightly larger than those of the base 11. The outer cover 12 is open at one end along the Y-axis direction. The outer cover 12 can be sleeved outside the base 11 along the Y-axis direction and is fixedly connected with the base 11 to seal and connect the opening of the base 11.

[0059] The fixing frame 13 is supported on and fixedly connected with the support seat 116. The fixing frame 13 is provided with a second insertion hole 131 coaxial with the first insertion hole 1111. After the outer cover 12 is fixedly connected with the base 11, the fixing frame 13 is also limited in the Z-axis direction by the outer cover 12.

[0060] Referring to Figs. 2-3, the magnetic circuit portion 100 (except the portion of the signal terminal 01 and the driving portion 35 described below) is substantially accommodated in the second slot 115, and the magnetic circuit portion 100 includes the coil assembly 20 and the armature assembly 30.

[0061] Fig. 1 shows a perspective view of the coil assembly 20, and Figs. 2-3 show that the coil assembly 20 is accommodated in the second slot 115 and supported on the bottom of the second slot 115, i.e., on the bottom wall 111. The coil assembly 20 includes a coil frame 21, a coil winding 22, a core (not shown in the figures), and two yokes 23. The coil frame 21 is fixedly connected in the second slot 115 and extends along the Y-axis direction and is provided with a central hole (not shown in the figures) extending along the Y-axis direction. The two ends of the coil frame 21 along the Y-axis direction are respectively provided with a retaining wall 211. The coil winding 22 is wound on the coil frame 21 and located between the two retaining walls 211, and thus also extends along the Y-axis direction. The coil winding 22 is connected to the signal terminal 01, which is fixedly connected to the retaining wall 211 of the coil frame 21 and penetrates the first side wall 112 along the Y-axis direction. The core extends along the Y-axis direction and is inserted into the central hole of the coil frame 21. The two yokes 23 are respectively fixedly connected to the two ends of the core, and the ends of the two yokes 23 away from the core respectively form a magnetic driving end 231 perpendicular to the X-axis direction. The two magnetic driving ends 231 are arranged along the Y-axis direction, and the two magnetic driving ends 231 are respectively a first magnetic driving end 232 and a second magnetic driving end 233. When the signal terminal 01 receives a pulse electrical signal, the polarities of the first magnetic driving end 232 and the second magnetic driving end 233 are opposite, and when the signal terminal 01 switches to receive a first pulse electrical signal and a second pulse electrical signal, the first magnetic driving end 232 and the second magnetic driving end 233 change between the S pole and the N pole, respectively.

[0062] Referring to Figs. 1-4, Fig. 4 specifically shows the structure of the armature assembly 30. The armature assembly 30 rotates about a first axis in response to the polarity change of the magnetic driving end 231, and the first axis extends along the Z-axis direction in Figs. 1-3. In this embodiment, the armature assembly 30 rotates between a first position and a second position. The first axis of the armature assembly 30 and the axis of the coil winding 22 are arranged along the X-axis direction.

[0063] As shown in FIG. 4, in the embodiment, the armature assembly 30 includes a permanent magnet (not shown in FIG. 4), two armatures 31 and an insulation member 34. The permanent magnet is formed of a magnetized magnetic steel. In other embodiments, the permanent magnet can also be formed of other permanent magnetic materials, such as a neodymium-iron-boron permanent magnet. The permanent magnet has two magnetic poles with fixed polarities, and the polarities of the two magnetic poles are opposite. The two armatures 31 are respectively fixed to the two magnetic poles of the permanent magnet, and each armature 31 is provided with two attracting portions adapted to attract the magnetic driving end 231. In the magnetic holding state, the coil winding 22 is not powered, and the two armatures 31 respectively have one attracting portion attracting the corresponding magnetic driving end 231 to form a closed magnetic circuit passing through the two magnetic driving ends 231. In the embodiment, the two armatures 31 are respectively a first armature 32 and a second armature 33. The first armature 32 is provided with two first attracting portions 321 at two ends in the length direction, and the second armature 33 is provided with two second attracting portions 331 at two ends in the length direction. The length of the first armature 32 is longer than the length of the second armature 33.

[0064] The insulation member 34 is fixed to the permanent magnet and the two armatures 31. Exemplarily, the insulation member 34 can be an injection molded member. The insulation member 34 wraps the two armatures 31 and the permanent magnet to form an integral whole, and the two ends of the first armature 32 and the second armature 33 are located outside the insulation member 34. The two sides of the insulation member 34 along the Z-axis direction close to the first armature 32 are respectively provided with an insertion shaft 341 extending along the Z-axis direction. The two insertion shafts 341 are coaxial and form a 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 direction of the armature assembly 30. The first axis is centrally arranged along the length direction of the armature assembly 30. In other possible examples, the first axis can also be centrally arranged along the width direction of the armature assembly 30 between the first armature 32 and the second armature 33.

[0065] The side of the insulation member 34 close to the first armature 32 is provided with a driving portion 35, that is, one side of the armature assembly 30 in the width direction is provided with the driving portion 35. The width direction of the armature assembly 30 is the arrangement direction of the two armatures 31 in the armature assembly 30. The driving portion 35 is adapted to swing in the first plane. The driving portion 35 is provided with a pushing groove 351 with an opening upward. The extension direction of the pushing groove 351 is parallel to the length direction of the armature assembly 30. The length direction of the armature assembly 30 is the length direction of the armature 31 in the armature assembly 30. In FIG. 4, the width of the two groove walls of the pushing groove 351 at the contact position with the elastic portion 62 below is smaller than the width of the driving portion 35 at other positions.

[0066] Referring to 1-3, the contact portion 200, except for the connection terminal 02 hereinafter, is accommodated in the first slot 114, and the contact portion 200 comprises the movable contact 40, the fixing member 70, the fixed contact 50 and the elastic member 60, the movable contact 40 is fixed to the first positioning slot 1141 at one end along the length direction thereof, and the other end is adapted to swing and is provided with the movable contact point 43, the movable contact point 43 is adapted to close or disconnect with the fixed contact 50, in the embodiment, the movable contact 40 comprises at least two stacked movable spring sheets 41, referring to 5-6, the structure of the movable spring sheet 41 is shown in 5, and the specific structure of the movable contact 40 is shown in 6, each movable spring sheet 41 is provided with a swing portion 411, and each swing portion 411 is provided with a riveting hole 412 for riveting the movable contact point 43, the movable contact point 43 is riveted with the riveting hole 412 of the swing portion 411 of each movable spring sheet 41, and the swing portion 411 of each movable spring sheet 41 is fixed with the movable contact point 43 and forms the contact portion 42 of the movable contact 40, wherein the swing portion 411 of the movable spring sheet 41 on the side of the movable contact 40 away from the movable contact point 43 is connected with the elastic member 60 hereinafter, therefore, the movable contact 40 is provided with the contact portion 42, and the contact portion 42 of the movable contact 40 is adapted to swing and is provided with the movable contact point 43. In 2-3, the fixing member 70 is fixed with the movable contact 40 and penetrates the first side wall 112 to form the connection terminal 02 therefrom, the fixing member 70 is provided with an avoiding slot 71 opening downward near the movable contact point 43, and the avoiding slot 71 can be passed through by the driving portion 35. In the embodiment, the fixing member 70 is fixed with the fixed end of the movable contact 40 and cooperates with the first positioning slot 1141 of the base 11 to be fixed in the accommodating member 10, and is located on the side of the movable contact 40 away from the fixed contact 50, when the current flows, the current direction of the fixing member 70 is opposite to the current direction of the movable contact 40, and the ampere force formed by the fixing member 70 to the movable contact 40 helps to improve the contact pressure of the movable contact 40 to the fixed contact 50, thereby being beneficial to avoid the movable contact point 43 and the fixed contact point 51 hereinafter from being disconnected and exploded due to the electrodynamic repulsion when the fault current occurs. It should be understood that, in other embodiments, the movable contact 40 can also only comprise one movable spring sheet 41, and at this time, the swing portion 411 of the movable spring sheet 41 is fixed with the movable contact point 43 and forms the contact portion 42 of the movable contact 40.

[0067] The fixed contact 50 extends along the Y-axis direction and is fixed in the cooperating slot 1142, and the fixed contact 50 is provided with the fixed contact point 51 and the other connection terminal 02 penetrating the first side wall 112; the movable contact point 43 and the fixed contact point 51 are adapted to close or disconnect along the X-axis direction.

[0068] In the embodiment, the driving portion 35 drives the elastic member 60 to drive the movable contact 40 to swing. As shown in FIG. 5, the elastic member 60 has a fixed portion 61 and an elastic portion 62. As shown in FIG. 6, the fixed portion 61 is fixed to the movable contact 40, and in the embodiment, the fixed portion 61 is fixed to the contact portion 42. The elastic portion 62 is adapted to abut against the driving portion 35 and deform around the second axis 03 when the driving portion 35 rotates to provide a contact pressure of the movable contact 40 to the fixed contact 50. The second axis 03 is parallel to the first plane or forms a preset acute angle with the first plane. In the embodiment, the second axis 03 is parallel to the first plane and perpendicular to the first axis. In FIGS. 2-3, the second axis 03 is parallel to the length direction of the movable contact 40, and the first axis is parallel to the width direction of the movable contact 40. It should be understood that in other embodiments, when the second axis 03 forms a preset acute angle with the first plane, the preset acute angle does not include a right angle, and the preset acute angle is not more than 20°. In other embodiments, the fixed portion 61 can also be fixed to the driving portion 35, and the elastic portion 62 abuts against the movable contact 40.

[0069] In the embodiment, the fixed portion 61 is integrated with the swing portion 411 of the movable spring sheet 41 on the side of the movable contact 40 away from the movable contact point 43, and the fixed portion 61 extends to the side of the movable contact point 43 along the width direction of the movable contact 40. The elastic portion 62 is on the same side of the fixed portion 61 along the width direction of the movable contact 40 as the movable contact point 43, and along the width direction of the movable contact 40, the elastic portion 62 does not exceed the edge of the movable contact 40. Along the length direction of the movable contact 40, the movable contact point 43 is between the elastic portion 62 and the fixed end of the movable contact 40, and the elastic portion 62 and the contact portion 42 are separated by a circular-arc-shaped gap, and the bending direction of the circular-arc-shaped gap matches the bending direction of the outer peripheral wall of the movable contact point 43. The end of the elastic portion 62 away from the fixed portion 61 is adapted to be inserted into the pushing groove 351, and the elastic portion 62 is provided with an abutment wall 621 adapted to abut 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 direction of the fixed contact 50 toward the groove bottom of the pushing groove 351.

[0070] The assembly process of the relay of the embodiment is as follows:

[0071] The fixed contact 50 is inserted into the fitting groove 1142 from the opening and penetrates the first side wall 112 to form one of the connection terminals 02;

[0072] The armature assembly 30 is placed into the base 11 from the opening, the insertion shaft 341 of the armature assembly 30 is inserted into the first insertion hole 1111, and the driving portion 35 of the armature assembly 30 extends into the first groove 114 through the through opening 1131 of the partition wall 113;

[0073] The fixed end of the moving contact 40 is inserted into the first positioning groove 1141 from the opening, the fixed part 70 penetrates the first side wall 112 to form another connecting terminal 02, and the bottom end of the elastic part 62 of the elastic part 60 is inserted into the pushing groove 351 of the driving part 35;

[0074] The coil assembly 20 is placed into the second groove 115 from the opening and the signal terminal 01 of the coil assembly 20 penetrates the first side wall 112, the coil winding 22 abuts against the limiting strip 1152, and the two yokes 23 are respectively inserted into the two second positioning grooves 1151.

[0075] Subsequently, the base 11 is sleeved into the cover 12 along the Y-axis direction and is fixedly connected with the cover 12; it should be understood that in actual operation, the installation sequence of the fixed contact 50, the coil assembly 20 and the armature assembly 30 can be adjusted as needed.

[0076] After installation, the contact part 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.

[0077] The working process of the embodiment is as follows:

[0078] 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, as shown in FIGS. 2 and 7, and FIG. 7 shows a schematic view of the contact part 200 when the armature assembly 30 rotates to the first position, wherein one first attraction part 321 attracts the first magnetic driving end 232, one second attraction part 331 attracts the second magnetic driving end 233, and the driving part 35 drives the moving contact 43 to close with the fixed contact 51.

[0079] When the signal terminal 01 receives the second pulse signal, the polarity of the two yokes 23 in the coil assembly 20 changes, and the armature assembly 30 is driven to rotate from the first position to the second position, as shown in FIGS. 2 and 8, and FIG. 8 shows a schematic view of the contact part 200 when the armature assembly 30 rotates to the second position, wherein the other second attraction part 331 attracts the first magnetic driving end 232, and the other first attraction part 321 attracts the second magnetic driving end 233, and the driving part 35 drives the moving contact 43 to be disconnected with the fixed contact 51.

[0080] In the embodiment, the contact part 200 and the coil winding 22 are respectively located on both sides of the second plane in the X-axis direction, so that the contact part 200 and the coil winding 22 are away from each other in the X-axis direction, so that the electrical distance between the weak electrical terminal of the coil assembly 20 and the strong electrical terminal of the contact part 200 is kept in a larger range, the electrical isolation problem is improved, and the isolation of the strong and weak electrical terminals is facilitated.

[0081] In the embodiment, the second axis 03 forms a preset acute angle with the first plane, wherein the preset acute angle does not include a right angle; the armature assembly 30 rotates around the first axis based on the polarity change of the coil assembly 20, one side of the armature assembly 30 in the width direction is provided with the driving part 35, since the driving part 35 has a large movement component along the length direction of the movable contact 40 in the rotating process, but will not move in the extension direction of the first axis, therefore, the driving part 35 occupies a small space in the extension direction of the first axis; in the elastic member 60, the fixed part 61 is fixedly connected with one of the driving part and the movable contact 40, the elastic part 62 abuts against the other one of the driving part and the movable contact 40, and is adapted to rotate around the second axis 03 and deform when the driving part 35 rotates, so as to provide the contact pressure of the movable contact 40 towards the static contact 50, since the elastic member 60 is adapted to rotate around the second axis 03 and deform, the second axis 03 is parallel to the first plane or forms a preset acute angle with the first plane, wherein the preset acute angle does not include a right angle, therefore, in the process of driving the elastic member 60 to move, the force arm of the elastic member 60 will not change or change very little, the elastic coefficient of the elastic member 60 remains stable or relatively stable, the elastic force changes linearly and will not change suddenly, therefore, the magnetic driving force in the process of closing the movable contact 40 and the static contact 50 and the magnetic driving force in the process of disconnecting the movable contact 40 and the static contact 50 are set based on a basically stable elastic force as a reference, wherein the magnetic driving force in the process of closing the movable contact 40 and the static contact 50 will not be set to be large because the finally formed elastic force is large, so that the driving power consumption of the coil assembly 20 and the permanent magnet of the armature assembly 30 can be smaller, the driving force in the process of disconnecting the movable contact 40 and the static contact 50 can also be normally set based on the appropriate reaction force of the elastic member 60, so as to ensure the disconnecting process, the coil assembly 20 has good magnetic interference resistance, the above setting can also easily control the required magnetic driving force and ensure that the movable contact 40 can reliably abut against or move away from the static contact 50. In addition, the driving part 35 is directly arranged on the armature assembly 30, compared with the traditional split structure, the direct arrangement is more convenient and cost-saving, and the direct arrangement also eliminates the need to arrange a push card between the armature assembly 30 and the elastic member 60, so as to facilitate avoiding the shaking of the movable contact 40 when disconnecting due to the existence of the shaking between the push card and the armature assembly 30, so as to avoid the unreliable disconnection, specifically, the scheme realizes the feature that the driving part 35 is partially rigidly connected with the armature 31 without a dead space, eliminates the shaking of the push card and the armature 31, and reduces the shaking of the disconnected movable contact 40 in a very simple and economical way.

[0082] In the embodiment, the second axis 03 is parallel to the first plane and perpendicular to the first axis, compared to the second axis 03 being at a preset acute angle with the first plane, on the one hand, it is beneficial 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 also beneficial to reduce the change of the force arm of the elastic member 60 during driving, thereby keeping the elastic coefficient stable or relatively stable during the closing or opening process of the moving contact 43 and the static contact 50.

[0083] In the embodiment, the preset acute angle is not more than 20°, compared to a large included 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, and it is also more beneficial to reduce the change of the force arm of the elastic member 60 during driving, thereby reducing the change of the elastic coefficient during the closing or opening process of the moving contact 43 and the static contact 50.

[0084] In the 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 to the second axis 03 being at an included angle with the length direction of the moving contact 40 and the first axis being at an included angle with the width direction of the moving contact 40, the elastic force of the elastic member 60 is more easily transmitted to the moving contact 40, thereby more beneficially reducing the magnetic driving force required during the closing process of the moving contact 40 and the static contact 50.

[0085] In the embodiment, the fixed part 61 is fixedly connected with the moving contact 40, and the elastic part 62 abuts against the driving part 35; the moving contact 40 is provided with a moving contact 43; the elastic part 62 and the moving contact 43 are located on the same side of the fixed part 61 along the width direction of the moving contact 40, so that the space occupied by the elastic member 60 in the width direction of the moving contact 40 is mainly the occupied space of the moving contact 40, thereby making the occupied space of the moving contact 40 and the elastic member 60 in the width direction of the moving contact 40 of the disclosure can be set smaller.

[0086] In the embodiment, along the width direction of the moving contact 40, the elastic part 62 does not exceed the edge of the width direction of the moving contact 40, so that the space occupied by the elastic member 60 in the width direction of the moving contact 40 is small, thereby making the occupied space of the moving contact 40 and the elastic member 60 in the width direction of the moving contact 40 of the disclosure can be set smaller, and the elastic member 60 is more easily reduced in height in the width direction of the moving contact 40 when cooperating with the driving part 35; in addition, after being thus set, the width direction of the elastic member 60 is consistent with or at an included angle with the length direction of the moving contact 40, so that increasing the width of the elastic member 60 will not excessively increase the volume of the relay, and the larger width of the elastic member 60 can enable the elastic member 60 to provide greater contact pressure to the moving contact 40, thereby improving the connection reliability of the moving contact 43 and the static contact 51.

[0087] In the embodiment, the fixed part 61 is fixedly connected with the contact part 42, and the structure is simpler; the fixed part 61 is integrally connected with the swing part 411 of the movable spring sheet 41 on the side of the movable contact 40 away from the movable contact 43, and the structure is simpler and easy to produce and process; the movable contact 40 is composed of at least two stacked movable spring sheets 41, and the current carrying capacity and elastic deformation capacity are increased.

[0088] In the embodiment, along the length direction of the movable contact 40, the movable contact 43 is located between the elastic part 62 and the fixed end of the movable contact 40, and when closed, the contact pressure of the movable contact 43 is large, and the movable contact 43 is not easy to separate from the static contact 51, thereby improving the connection reliability of the movable contact 43 and the static contact 50.

[0089] In the embodiment, the fixed part 61 extends to one side of the movable contact 43 along the width direction of the movable contact 40, effectively utilizes the space on both sides of the movable contact 43, and as much as possible, the length of the fixed part 61 is extended to make the fixed part 61 have a larger connection area with the movable contact 40, reduce stress concentration, reduce fatigue damage, and improve service life.

[0090] In the embodiment, along the length direction of the movable contact 40, the elastic part 62 and the contact part 42 are separated by a circular arc gap, the bending direction of the circular arc gap matches the bending direction of the outer peripheral wall of the movable contact 43, the elastic part 62 more reasonably utilizes the space based on the shape of the movable contact 43 to design the shape, the length of the first end of the elastic part 62 is longer, the stress dispersion effect is better, fatigue failure is avoided, and service life is improved.

[0091] In the embodiment, the driving part 35 is provided with a pushing groove 351 with an opening facing the elastic part 62, the extension direction of the pushing groove 351 is parallel to the extension direction of the movable contact 40; one end of the elastic part 62 away from the fixed part 61 is inserted into the pushing groove 351, and in the rotation process of the driving part 35, the groove wall of the pushing groove 351 drives the elastic part 62 to swing, so that the movable contact 40 and the static contact 50 are closed or disconnected, and easy to install and produce and process.

[0092] In the embodiment, the fixed part 61 and the elastic part 62 are integrally connected, and the elastic member 60 is easy to process; the elastic part 62 is provided with an abutting wall 621 adapted to abut against the groove wall of the pushing groove 351, one end of the abutting wall 621 away from the elastic part 62 is provided with a guide part 622 gradually inclined towards the static contact 50 from the groove bottom of the pushing groove 351, on the one hand, it is beneficial to guide the elastic part 62 and the pushing groove 351 to be inserted and matched, avoid the elastic part 62 to produce scrapes when inserted into the groove wall of the pushing groove 351, and the structure is simple and easy to assemble, on the other hand, it is more beneficial to the deformation of the elastic part 62 when the movable contact 40 and the static contact 50 are closed.

[0093] In this embodiment, when the movable contact 43 is disconnected from the fixed contact 50, the slot wall of the pushing slot 351 pushes the abutting wall 621 to drive the elastic part 62 to deform. In this technical solution, the width of the two slot walls of the pushing slot 351 at the position for contacting the elastic part 62 is smaller than the width of the driving part 35 at other positions. On the one hand, the overall strength of the driving part 35 is ensured, and on the other hand, the contact area of the pushing slot 351 and the elastic part 62 during the pushing process is reduced, the friction force generated is small, and jamming is avoided.

[0094] The above description and embodiment are used to explain the protection scope of the present disclosure, but do not constitute a limitation on the protection scope of the present disclosure. Through the inspiration of the present disclosure or the above embodiment, the modification, equivalent replacement or other improvement of the present disclosure embodiment or one part of the technical features can be obtained by the ordinary skill in the art combined with the common knowledge, the ordinary skill in the art and / or the prior art through logical analysis, reasoning or limited test, which should be included in the protection scope of the present disclosure.

Claims

1. A relay comprising a housing (10), a magnetic circuit portion (100) and a contact portion (200), the magnetic circuit portion (100) comprising an armature assembly (30) which is rotatable about a first axis, the contact portion (200) comprising a stationary contact (50) and a movable contact (40), the stationary contact (50) being fixed relative to the housing (10), the movable contact (40) being fixed relative to the housing (10) at one end thereof in the length direction thereof and being adapted to oscillate at the other end thereof in order to close or open the movable contact (40) to the stationary contact (50), characterized in that: The contact portion (200) further comprises an elastic member (60); ​ The armature assembly (30) is provided with a driving portion (35) adapted to swing in a first plane; The driving portion (35) drives the elastic member (60) to swing, the elastic member (60) has a fixed portion (61) and an elastic portion (62); the fixed portion (61) is fixedly connected with one of the driving portion (35) and the movable contact (40), the elastic portion (62) is in abutment with the other one of the driving portion (35) and the movable contact (40), and is adapted to rotate around a second axis (03) to deform when the driving portion (35) swings, so as to provide a contact pressure of the movable contact (40) towards the fixed contact (50), the second axis (03) is parallel to the first plane or forms a preset acute angle with the first plane.

2. The relay of claim 1, wherein The second axis (03) is parallel to the first plane and perpendicular to the first axis.

3. The relay of claim 1, wherein the relay is configured to: The preset acute angle is not more than 20°.

4. The relay of claim 2, wherein the relay is a solid state relay. The second axis (03) is parallel to the length direction of the movable contact (40), and the first axis is parallel to the width direction of the movable contact (40).

5. The relay of claim 4 wherein, The fixed portion (61) is fixedly connected with the movable contact (40), and the elastic portion (62) is in abutment with 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. The relay of claim 5 wherein, In the width direction of the movable contact (40), the elastic portion (62) does not exceed the edge of the movable contact (40) in the width direction.

7. The relay of claim 6 wherein, In the length direction of the movable contact (40), the movable contact point (43) is located between the elastic portion (62) and the fixed end of the movable contact (40).

8. The relay of claim 7 wherein, The fixed portion (61) extends to one side of the movable contact point (43) along the width direction of the movable contact (40).

9. The relay of claim 8 wherein, The movable contact (40) is provided with a contact portion (42) adapted to swing and provided with the movable contact point (43), the fixed contact (50) is provided with a fixed contact point (51), the movable contact point (43) is adapted to close or open with the fixed contact point (51); the fixed portion (61) is fixedly connected with the contact portion (42); in the length direction of the movable contact (40), the elastic portion (62) and the contact portion (42) are separated by a circular-arc-shaped gap, the bending direction of the circular-arc-shaped gap matches the bending direction of the outer peripheral wall of the movable contact point (43).

10. The relay of claim 9, wherein the relay is configured to: The movable contact (40) comprises at least two stacked movable spring sheets (41), each movable spring sheet (41) is provided with a swing portion (411), the swing portion (411) of each movable spring sheet (41) is fixedly connected with the movable contact point (43) and forms the contact portion (42), and the fixed portion (61) is integrated with the swing portion (411) of the movable spring sheet (41) on the side of the movable contact (40) away from the movable contact point (43).

11. A relay according to any one of claims 5 to 10, characterised in that, The driving part (35) is provided with a push groove (351) which is open to the elastic part (62), the extension direction of the push groove (351) is parallel to the length direction of the armature assembly (30); the fixed part (61) and the elastic part (62) are integrated, and the end of the elastic part (62) away from the fixed part (61) is inserted into the push groove (351).

12. The relay of claim 11, wherein the relay is configured to: The elastic part (62) is provided with an abutting wall (621) which is suitable for abutting with the groove wall of the push groove (351), and the end of the abutting wall (621) away from the fixed part (61) is provided with a guide part (622) which is gradually inclined to the direction of approaching the static contact (50) towards the groove bottom of the push groove (351).

13. The relay of claim 12, wherein the relay is configured to: The width of the two groove walls of the push groove (351) for the contact position of the elastic part (62) is less than the width of other positions of the driving part (35).

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

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