Electromagnetic relay

Abstract

The utility model relates to an electromagnetic relay. The electromagnetic relay comprises a static spring assembly, a static spring, a static contact, a movable spring and a movable contact, the static contact is arranged on one side of the static spring along the first direction, the movable spring is arranged on one side of the static contact deviating from the static spring at intervals, and the movable contact is arranged on one side of the movable spring facing the static contact; the magnetic circuit assembly is at least partially arranged on the side, away from the static spring, of the movable spring. The movable spring comprises a first extension section, a second extension section, a third extension section and a fourth extension section which are sequentially arranged in the second direction and connected, the movable contact is arranged on the first extension section, and the fourth extension section extends in the direction away from the static spring; and in the first state, the distance between the second extension section and the static spring in the first direction is a first distance, the distance between the third extension section and the static spring in the first direction is a second distance, the first distance is gradually reduced in the direction from the second extension section to the third extension section, and the second distance is gradually increased in the direction from the second extension section to the third extension section. Therefore, the electromagnetic relay provided by the utility model is beneficial to increasing the contact gap of the electromagnetic relay.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electromagnetic relays, in particular to an electromagnetic relay. BACKGROUND

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

[0003] In the related art, an electromagnetic relay can include a moving spring, a moving contact, a stationary spring and a stationary contact. The moving spring and the stationary spring are oppositely arranged. The moving contact is arranged on a side of the moving spring facing the stationary spring. The stationary contact is arranged on a side of the stationary spring facing the moving spring. When the stationary contact and the moving contact are in a separated state, the stationary contact and the moving contact have a contact gap therebetween. However, the contact gap of the above-mentioned electromagnetic relay needs to be increased. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide an electromagnetic relay, which is beneficial to increase the contact gap of the electromagnetic relay.

[0005] In a first aspect, an embodiment of the present application provides an electromagnetic relay, comprising:

[0006] a stationary spring assembly comprising a stationary spring and a stationary contact connected to each other, the stationary contact being arranged on a side of the stationary spring along a first direction;

[0007] a moving spring assembly comprising a moving spring and a moving contact connected to each other, the moving spring being arranged at a side of the stationary contact away from the stationary spring, and the moving contact being arranged on a side of the moving spring facing the stationary contact;

[0008] a magnetic circuit assembly arranged at least partially on a side of the moving spring away from the stationary spring;

[0009] in a first state, the stationary contact and the moving contact are arranged at a distance from each other; and in a second state, the stationary contact and the moving contact are in contact with each other;

[0010] wherein the moving spring comprises a first extension segment, a second extension segment, a third extension segment and a fourth extension segment arranged in sequence and connected to each other along a second direction, the moving contact is arranged on the first extension segment, and the fourth extension segment extends away from the stationary spring; in the first state, a distance between the second extension segment and the stationary spring along the first direction is a first distance, a distance between the third extension segment and the stationary spring along the first direction is a second distance, the first distance gradually decreases and the second distance gradually increases along a direction from the second extension segment to the third extension segment, and the first direction and the second direction intersect.

[0011] The electromagnetic relay provided by the embodiments of the present application can make the distance between the end of the second extending section close to the third extending section and the static spring along the first direction be relatively short, which is beneficial to reducing the total volume occupied by the static spring and the moving spring, and further beneficial to reducing the volume of the electromagnetic relay, thereby meeting the demand of the electromagnetic relay for small volume. In addition, the distance between the end of the second extending section close to the first extending section and the static spring is relatively long, so that the distance between the first extending section and the static spring is relatively long, which can make the contact gap of the electromagnetic relay be relatively large, is beneficial to cutting off the electric spark between the static contact and the moving contact, can prevent the arc from breaking the contact due to the excessively high voltage, and ensures the normal work of the electromagnetic relay.

[0012] In one of the embodiments, in the first state, the second extending section is obliquely intersected with the second direction, and the end of the second extending section close to the first extending section is obliquely arranged in the direction away from the static spring relative to the end away from the first extending section; and / or,

[0013] In the first state, the third extending section is obliquely intersected with the second direction, and the end of the third extending section away from the second extending section is obliquely arranged in the direction away from the static spring relative to the end close to the second extending section.

[0014] In one of the embodiments, in the first state, the angle range between the first extending section and the second extending section is 165°-175°; and / or,

[0015] In the first state, the angle range between the second extending section and the third extending section is 147°-163°; and / or,

[0016] In the first state, the angle range between the third extending section and the fourth extending section is 95°-115°.

[0017] In one of the embodiments, the electromagnetic relay comprises a push spring, the magnetic circuit assembly comprises an armature, the armature is arranged on the side of the moving spring away from the static spring, and the push spring is arranged between the armature and the moving spring;

[0018] The push spring comprises a fifth extending section, a sixth extending section and a seventh extending section arranged in sequence and connected along the second direction, and the fifth extending section is connected with the armature;

[0019] In the first state, the seventh extending section is arranged apart from the armature, and the distance between the seventh extending section and the armature is a third distance; in the second state, the distance between the seventh extending section and the armature is a fourth distance; and the fourth distance is less than or equal to the third distance.

[0020] In one of the embodiments, in the first state, the end of the sixth extending section away from the fifth extending section is obliquely arranged in the direction away from the armature relative to the end close to the fifth extending section.

[0021] In one of the embodiments, the electromagnetic relay comprises a pushing piece, the second extension section is provided with a first through hole penetrating the moving spring in the first direction, and the pushing piece is provided with a first penetrating part penetrating in the first through hole.

[0022] In one of the embodiments, the seventh extension section is provided with a second through hole penetrating the pushing spring in the first direction, the armature is provided with a third through hole penetrating the armature in the first direction, and the pushing piece is provided with a second penetrating part penetrating in the second through hole and the third through hole.

[0023] In one of the embodiments, the first penetrating parts on the static spring assembly, the moving spring assembly and the pushing piece are multiple, the multiple moving spring assemblies and the multiple static spring assemblies are correspondingly arranged, in the first state, the moving contact of the moving spring assembly is arranged in the static contact of the corresponding static spring assembly; in the second state, the moving contact of the moving spring assembly is in contact with the static contact of the corresponding static spring assembly.

[0024] The multiple first penetrating parts and the multiple moving spring assemblies are correspondingly arranged, and the first penetrating part penetrates in the first through hole of the corresponding moving spring assembly.

[0025] In one of the embodiments, the moving spring assembly comprises a leading piece, the leading piece comprises an eighth extension section, a ninth extension section and a tenth extension section connected in sequence, and the eighth extension section and the tenth extension section are oppositely arranged in the first direction.

[0026] The moving spring is arranged on one side of the ninth extension section in the second direction, and the eighth extension section and the tenth extension section are arranged on the other side of the ninth extension section in the second direction.

[0027] The electromagnetic relay comprises a base, and the eighth extension section and the tenth extension section are connected to the base through insertion.

[0028] In one of the embodiments, the eighth extension section comprises a first surface and a second surface oppositely arranged in a third direction, the distance between the first surface and the second surface in the third direction is a fifth distance, and the fifth distance gradually decreases in the direction from the moving spring to the leading piece.

[0029] The base is provided with a insertion hole, the eighth extension section is inserted in the insertion hole and is in interference fit with the insertion hole, and the third direction intersects the first direction and the second direction.

[0030] The electromagnetic relay provided by the embodiment of the present application has a small total volume occupied by the static spring and the moving spring, which is beneficial to reducing the volume of the electromagnetic relay, meeting the demand of the electromagnetic relay for small volume, in addition, the electromagnetic relay has a large contact gap, which is beneficial to cutting off the electric spark between the static contact and the moving contact, preventing the arc from breaking the contact due to high voltage, and ensuring the normal work of the electromagnetic relay. The moving spring has small stress and counterforce during the deformation process, and the moving spring is not easy to break during the deformation process, which improves the working stability of the electromagnetic relay and prolongs the service life of the electromagnetic relay. The setting position of the moving contact has high precision, the assembly precision between the lead-out piece and the base is high, and the connection stability is high. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A structural schematic diagram of the electromagnetic relay provided by the embodiment of the present application.

[0032] Figure 2 A structural schematic diagram of the moving spring provided by the embodiment of the present application.

[0033] Figure 3 A structural schematic diagram of the push spring provided by the embodiment of the present application.

[0034] Figure 4 A structural schematic diagram of the push member provided by the embodiment of the present application.

[0035] Figure 5 A structural schematic diagram of the lead-out piece provided by the embodiment of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] 100, electromagnetic relay; 101, static spring assembly; 102, static contact; 110, static spring; 103, moving spring assembly; 104, moving contact; 120, moving spring; 121, first extension section; 122, second extension section; 123, third extension section; 124, fourth extension section; 125, first riveting hole; 105, magnetic circuit assembly; 131, coil assembly; 132, yoke; 133, magnetic core; 134, armature; 1341, first sub-portion; 1342, second sub-portion; 150, push spring; 152, second riveting hole; 155, fifth extension section; 156, sixth extension section; 157, seventh extension section; 160, push member; 161, first penetrating portion; 162, second penetrating portion; 171, first through hole; 172, second through hole; 173, third through hole; 180, lead-out piece; 181, rivet; 188, eighth extension section; 188a, first surface; 188b, second surface; 189, ninth extension section; 1810, tenth extension section. DETAILED DESCRIPTION

[0038] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0039] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0041] In the present application, unless otherwise explicitly specified and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature on or above or below a second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature can be above or above and above the second feature, or it can only mean that the first feature is higher in horizontal height than the second feature. The first feature can be below or below and below the second feature, or it can only mean that the first feature is lower in horizontal height than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not mean the only implementation.

[0044] In the related art, the electromagnetic relay can include a moving spring, a moving contact, a stationary spring, and a stationary contact, the moving spring and the stationary spring are oppositely arranged, the moving contact is arranged on a side of the moving spring facing the stationary spring, and the stationary contact is arranged on a side of the stationary spring facing the moving spring, and when the stationary contact and the moving contact are in a separated state, there is a contact gap between the stationary contact and the moving contact.

[0045] However, the stationary spring and the moving spring both extend substantially in a straight line, and when the stationary contact and the moving contact are in a separated state, the distance between the stationary spring and the moving spring is the same along the extension direction of the stationary spring. In order to meet the demand of small volume of the electromagnetic relay, the distance between the stationary spring and the moving spring needs to be set small, thereby resulting in a small contact gap of the electromagnetic relay, which is not conducive to cutting off the electric spark between the stationary contact and the moving contact.

[0046] To solve the above problems, the present application provides an electromagnetic relay, which is conducive to increasing the contact gap of the electromagnetic relay.

[0047] The following will be combined with Figures 1-5 The electromagnetic relay 100 provided by the embodiments of the present application will be described.

[0048] Referring to Figure 1 The present application provides an electromagnetic relay 100, for example, the electromagnetic relay 100 can be a large load electromagnetic relay. The electromagnetic relay 100 can include a base (1001) Figure 1The electromagnetic relay 100 comprises a static spring assembly 101 and a dynamic spring assembly 103. The static spring assembly 101 comprises a static spring 110 and a static contact 102 connected with each other. The static contact 102 is arranged on one side of the static spring 110 along a first direction X. The dynamic spring assembly 103 comprises a dynamic spring 120 and a dynamic contact 104 connected with each other. The dynamic spring 120 is arranged on the side of the static contact 102 away from the static spring 110. The dynamic contact 104 is arranged on the side of the dynamic spring 120 facing the static contact 102. The static spring 110 and the dynamic spring 120 are arranged on the base respectively. At least part of the magnetic circuit assembly 105 can be arranged on the side of the dynamic spring 120 away from the static spring 110.

[0049] The coil assembly 131 can comprise a coil frame and an enameled wire wound on the coil frame. The magnetic core 133 is inserted into the coil frame.

[0050] The yoke 132 can be in the shape of an "L". One part of the yoke 132 is riveted to one end of the magnetic core 133. The other part of the yoke 132 is arranged on the side of the coil assembly 131.

[0051] The armature 134 can be in the shape of an "L". The armature 134 comprises a first sub-portion 1341 and a second sub-portion 1342 connected with each other. The first sub-portion 1341 is arranged on the outside of the other part of the yoke 132. The second sub-portion 1342 is arranged on the pole surface of the other end of the magnetic core 133. When the coil assembly 131 is energized, the second sub-portion 1342 can be attracted by the other end of the magnetic core 133 and swing towards the other end of the magnetic core 133, so as to drive the first sub-portion 1341 to swing away from the yoke 132. For example, the armature 134 can be rotatable relative to the coil assembly 131.

[0052] Referring to Figure 1 The electromagnetic relay 100 comprises a static spring assembly 101 and a dynamic spring assembly 103. The static spring assembly 101 comprises a static spring 110 and a static contact 102 connected with each other. The static contact 102 is arranged on one side of the static spring 110 along a first direction X. The dynamic spring assembly 103 comprises a dynamic spring 120 and a dynamic contact 104 connected with each other. The dynamic spring 120 is arranged on the side of the static contact 102 away from the static spring 110. The dynamic contact 104 is arranged on the side of the dynamic spring 120 facing the static contact 102. The static spring 110 and the dynamic spring 120 are arranged on the base respectively. At least part of the magnetic circuit assembly 105 can be arranged on the side of the dynamic spring 120 away from the static spring 110.

[0053] For example, the electromagnetic relay 100 can be normally open or normally closed.

[0054] For example, in the second state, the coil assembly 131 is energized, under the action of electromagnetic force, the second sub-portion 1342 of the armature 134 is attracted to the magnetic core 133, at the same time, the first sub-portion 1341 of the armature 134 swings away from the side of the yoke 132, and drives the push spring 150 to swing the pusher 160 to the side of the moving spring 120 to push the moving spring 120 to move (at this time, the moving spring 120 is deformed), until the moving contact 104 contacts the static contact 102 to be closed. In the first state, the coil assembly 131 is de-energized, since there is no external force acting on the moving spring 120, the moving spring 120 will return to the initial state before deformation, the moving spring 120 will drive the pusher 160, the push spring 150 and the first sub-portion 1341 of the armature 134 to swing away from the static spring 110, at the same time, the second sub-portion 1342 of the armature 134 moves away from the pole surface of the magnetic core 133, so that the pusher 160, the push spring 150 and the armature 134 are all reset, and the moving contact 104 and the static contact 102 are spaced apart to be disconnected.

[0055] The moving spring 120 provided by the embodiment of the present application is described below.

[0056] Referring to Figure 1 and Figure 2In the first state, the distance between the second extension section 122 and the static spring 110 along the first direction X is a first distance, and the distance between the third extension section 123 and the static spring 110 along the first direction X is a second distance. In the direction from the second extension section 122 to the third extension section 123, the first distance gradually decreases, and the second distance gradually increases. In this way, the end of the second extension section 122 close to the third extension section 123 and the end of the third extension section 123 close to the second extension section 122 are both close to the static spring 110 along the first direction X, which is beneficial to reduce the overall volume occupied by the static spring 110 and the moving spring 120, and further beneficial to reduce the volume of the electromagnetic relay 100, so as to meet the demand of the electromagnetic relay 100 for small volume. In addition, the end of the second extension section 122 close to the first extension section 121 is far away from the static spring 110, so that the first extension section 121 is far away from the static spring 110, which can make the contact gap of the electromagnetic relay 100 larger (for example, the electromagnetic relay 100 can be a large-gap micro-reverse relay), and is beneficial to cut off the electric spark between the static contact 102 and the moving contact 104, so as to prevent the arc from breaking the contact due to high voltage, and ensure the normal work of the electromagnetic relay 100. Furthermore, by arranging the third extension section 123 between the second extension section 122 and the fourth extension section 124, compared with directly connecting the second extension section 122 and the fourth extension section 124, the angle between the third extension section 123 and the fourth extension section 124 is larger, which can avoid the third extension section 123 and the fourth extension section 124 from being easily broken in the deformation process due to the small angle. At this time, the moving spring 120 can be arranged in a substantially "L" shape under the condition that the overall height is unchanged, and by increasing the number of bending sections, the stress and the size of the counterforce of the moving spring 120 during movement can be reduced.

[0057] For example, the first direction X and the second direction Y can be perpendicular to each other.

[0058] In some embodiments, referring to Figure 1 and Figure 2In the first state, the second extension section 122 is obliquely intersected with the second direction Y, and the end of the second extension section 122 close to the first extension section 121 is obliquely arranged towards the direction away from the static spring 110 relative to the end away from the first extension section 121. In this way, the second extension section 122 is obliquely arranged, so that the first distance gradually decreases along the direction from the second extension section 122 to the third extension section 123, and in addition, the shape of the obliquely arranged second extension section 122 is relatively simple, which is beneficial to reduce the difficulty of arranging the second extension section 122.

[0059] In some embodiments, referring to Figure 1 and Figure 2 In the first state, the third extension section 123 is obliquely intersected with the second direction Y, and the end of the third extension section 123 away from the second extension section 122 is obliquely arranged towards the direction away from the static spring 110 relative to the end close to the second extension section 122. In this way, the third extension section 123 is obliquely arranged, so that the second distance gradually increases along the direction from the second extension section 122 to the third extension section 123, and in addition, the shape of the obliquely arranged third extension section 123 is relatively simple, which is beneficial to reduce the difficulty of arranging the third extension section 123.

[0060] In some embodiments, referring to Figure 1 and Figure 2 In the first state, the angle β1 between the first extension section 121 and the second extension section 122 ranges from 165° to 175°, so that the angle between the first extension section 121 and the second extension section 122 is relatively large and is not easy to be broken in the deformation process. For example, β1 can be 165°, 170°, 175°, or any value between 165° and 175°.

[0061] In some embodiments, referring to Figure 1 and Figure 2 In the first state, the angle β2 between the second extension section 122 and the third extension section 123 ranges from 147° to 163°, so that the angle between the second extension section 122 and the third extension section 123 is relatively large and is not easy to be broken in the deformation process. For example, β2 can be 147°, 150°, 155°, 160°, 163°, or any value between 147° and 163°.

[0062] In some embodiments, in the first state, the angle β3 between the third extension section 123 and the fourth extension section 124 ranges from 95° to 115°, so that the angle between the third extension section 123 and the fourth extension section 124 is relatively large and is not easy to be broken in the deformation process. For example, β3 can be 95°, 100°, 110°, 115°, or any value between 95° and 115°.

[0063] In some embodiments, in the first state, the first extension section 121 has a small angle with the second direction Y, for example, the first extension section 121 can be parallel to the second direction Y.

[0064] The push spring 150 provided by the embodiments of the present application is described below.

[0065] In some embodiments, referring to Figure 1 and Figure 3 , the electromagnetic relay 100 includes the push spring 150, the magnetic circuit assembly 105 includes the armature 134, the armature 134 is arranged on the side of the moving spring 120 away from the static spring 110, and the push spring 150 is arranged between the armature 134 and the moving spring 120. After the moving contact 104 contacts the static contact 102, as the first sub-section 1341 of the armature 134 continues to swing away from the yoke 132, the push spring 150 is elastically deformed, thereby assisting or promoting the moving spring 120 to achieve contact overtravel and contact pressure, which can improve the contact stability of the static contact 102 and the moving contact 104. In addition, by elastically deforming the push spring 150, the deformation degree of the moving spring 120 during contact overtravel can be small, which is beneficial to reduce the reaction force and stress of the moving spring 120 and is beneficial to improve the service life of the electromagnetic relay 100.

[0066] In the process of swinging the first sub-section 1341 of the armature 134 away from the yoke 132 before the moving contact 104 contacts the static contact 102, the push spring 150 can not be deformed, or it can also be deformed first. For example, in the first state, the seventh extension section 157 is in contact with the pusher 160 and has a gap with the armature 134. Through force value calculation matching, the gap can make the push spring 150 as a whole only move with the pusher 160 and the armature 134 during the operation process, without deformation. When the contact closure product starts to overtravel, the sixth extension section 156 and / or the seventh extension section 157 of the push spring 150 starts to deform at this time, and the moving spring 120 can not be deformed, thereby further reducing the stress on the moving spring 120 and further improving the service life of the product.

[0067] In some embodiments, the push spring 150 comprises a fifth extension segment 155, a sixth extension segment 156 and a seventh extension segment 157 arranged in sequence along the second direction Y and connected in sequence, and the fifth extension segment 155 is connected with the armature 134. In the first state, the seventh extension segment 157 is spaced apart from the armature 134, and the distance between the seventh extension segment 157 and the armature 134 is a third distance. In the second state, the distance between the seventh extension segment 157 and the armature 134 is a fourth distance, and the fourth distance is less than or equal to the third distance. In this way, when the movable contact 104 and the fixed contact 102 are just in contact, the fourth distance can be equal to the third distance. In addition, after the movable contact 104 and the fixed contact 102 are in contact, as the first sub-portion 1341 of the armature 134 continues to swing away from the yoke 132, the push spring 150 is elastically deformed, so that the fourth distance is less than the third distance, thereby assisting or promoting the movable spring 120 to achieve contact overtravel and contact pressure, which can improve the contact stability of the fixed contact 102 and the movable contact 104, and make the deformation degree of the movable spring 120 smaller when the contact overtravel occurs, which is beneficial to reduce the reaction force and stress of the movable spring 120 and is beneficial to improve the service life of the electromagnetic relay 100.

[0068] In some embodiments, in the first state, the sixth extension segment 156 is arranged to be inclined away from the armature 134 at an end of the sixth extension segment 156 away from the fifth extension segment 155 relative to an end of the sixth extension segment 156 close to the fifth extension segment 155. In this way, the shape of the inclined sixth extension segment 156 is relatively simple, which is beneficial to reduce the difficulty of setting the sixth extension segment 156. In addition, by setting the sixth extension segment 156, the push spring 150 can have a larger elastic deformation capacity.

[0069] For example, the fifth extension segment 155 and the armature 134 are riveted and connected, and the fifth extension segment 155 is provided with a second riveting hole 152, and the fifth extension segment 155 is riveted and connected with the armature 134 through the second riveting hole 152.

[0070] In some embodiments, referring to Figure 1 and Figure 4 , the electromagnetic relay 100 comprises a push member 160, which can be used to transmit motion, and the armature 134 and the push spring 150 can push the movable spring 120 through the push member 160, or the movable spring 120 can push the push spring 150 and the armature 134 through the push member 160. The second extension segment 122 is provided with a first through hole 171 penetrating the movable spring 120 along the first direction X, and the push member 160 is provided with a first penetrating portion 161 penetrating in the first through hole 171. In this way, through the cooperation of the first penetrating portion 161 and the first through hole 171, the first penetrating portion 161 of the push member 160 can be positioned.

[0071] Exemplarily, the material of the pushing member 160 can include an insulating material.

[0072] In some embodiments, the seventh extending section 157 is provided with a second through hole 172 penetrating the pushing spring 150 in the first direction X, and the pushing member 160 is provided with a second penetrating portion 162 penetrating the second through hole 172. Thus, the second penetrating portion 162 of the pushing member 160 can be positioned by cooperation of the second penetrating portion 162 and the second through hole 172. The first penetrating portion 161 and the second penetrating portion 162 penetrating the first through hole 171 and the second through hole 172 respectively, so that the pushing member 160 can be clamped and fixed between the moving spring 120 and the pushing spring 150, thereby positioning and supporting the pushing member 160.

[0073] In some embodiments, the armature 134 is provided with a third through hole penetrating the armature 134 in the first direction X, and the second penetrating portion 162 can penetrate the third through hole. Thus, the second penetrating portion 162 penetrates the second through hole 172 and the third through hole in sequence, so that the hole inner wall of the second through hole 172 and the hole inner wall of the third through hole can support the second penetrating portion 162, which can improve the positioning and supporting stability of the pushing member 160.

[0074] In some embodiments, referring to Figure 1 and Figure 5 , the moving spring assembly 103 includes a lead-out member 180, one end of the lead-out member 180 can be used to connect with the moving spring 120 and support the moving spring 120, and the other end is used to electrically connect with an external circuit. The end of the stationary spring 110 away from the stationary contact 102 can be used to electrically connect with the external circuit. Thus, the moving spring assembly 103 and the stationary spring assembly 101 are electrically connected to the external circuit through the end of the lead-out member 180 away from the moving contact 104 and the end of the stationary spring 110 away from the stationary contact 102.

[0075] In some embodiments, the lead-out piece 180 comprises a eighth extending segment 188, a ninth extending segment 189 and a tenth extending segment 1810 connected in sequence, the eighth extending segment 188 and the tenth extending segment 1810 are oppositely and spacedly arranged along the first direction X, and both the eighth extending segment 188 and the tenth extending segment 1810 are connected with the base plug. The extending length of the tenth extending segment 1810 along the second direction Y is greater than the extending length of the eighth extending segment 188 along the second direction Y. In this way, by arranging two extending segments (i.e. the eighth extending segment 188 and the tenth extending segment 1810) to be connected with the base plug at the same time, compared with the case of using a single extending segment to be connected with the base plug, it is beneficial to prevent the lead-out piece 180 from being warped to reduce the setting position accuracy of the movable contact 104, and it is also beneficial to improve the connection stability between the lead-out piece 180 and the base. The ninth extending segment 189 and the tenth extending segment 1810 of the lead-out piece 180 jointly form an “L” type structure, which can ensure riveting and fixing with the movable spring 120, and at the same time, increasing the special-shaped protruding structure (i.e. the eighth extending segment 188) at the front end of the “L” type structure can ensure the fixed fit between the lead-out piece 180 and the base.

[0076] In some embodiments, the movable spring 120 is arranged on one side of the ninth extending segment 189 along the second direction Y, and the eighth extending segment 188 and the tenth extending segment 1810 are arranged on the other side of the ninth extending segment 189 along the second direction Y. In this way, arranging the movable spring 120 on the side of the ninth extending segment 189 away from the eighth extending segment 188 and the tenth extending segment 1810 can reduce the assembly difficulty between the movable spring 120 and the ninth extending segment 189.

[0077] For example, the movable spring 120 and the lead-out piece 180 can be riveted and connected.

[0078] For example, referring to Figure 1 , Figure 2 and Figure 5 , the fourth extending segment 124 and the ninth extending segment 189 are riveted and connected. For example, the fourth extending segment 124 is provided with a first riveting hole 125, and the side of the ninth extending segment 189 facing the movable spring 120 is provided with a rivet 181, and the fourth extending segment 124 and the ninth extending segment 189 are riveted and connected through the rivet 181 and the first riveting hole 125.

[0079] In some embodiments, referring to Figure 5The eighth extending section 188 comprises a first surface 188a and a second surface 188b oppositely arranged along the third direction Z, the distance between the first surface 188a and the second surface 188b along the third direction Z is a fifth distance, the fifth distance gradually decreases in the direction from the moving spring 120 to the lead-out piece 180, the base is provided with a socket, the eighth extending section 188 is inserted into the socket, and the eighth extending section 188 is in interference fit with the socket. In this way, during the insertion of the eighth extending section 188 into the socket, the first surface 188a and the second surface 188b can play a guiding role, which is beneficial to reduce the assembly difficulty of the eighth extending section 188 and the socket.

[0080] For example, the third direction Z intersects the first direction X and the second direction Y, for example, the third direction Z is perpendicular to the first direction X and the second direction Y. The first direction X, the second direction Y and the third direction Z can be perpendicular to each other.

[0081] The following describes the number of the static spring assembly 101 and the moving spring assembly 103 provided by the embodiments of the present application.

[0082] In some embodiments, the static spring assembly 101 and the moving spring assembly 103 are both one.

[0083] In other embodiments, the static spring assembly 101 and the moving spring assembly 103 are both multiple, and the multiple moving spring assemblies 103 and the multiple static spring assemblies 101 are correspondingly arranged, for example, one moving spring assembly 103 and one static spring assembly 101 are correspondingly arranged. In the first state, the moving contact 104 of the moving spring assembly 103 is arranged to be spaced apart from the static contact 102 of the corresponding static spring assembly 101, and in the second state, the moving contact 104 of the moving spring assembly 103 is in contact with the static contact 102 of the corresponding static spring assembly 101.

[0084] Referring to Figure 1 and Figure 4 In the embodiment in which the static spring assembly 101 and the moving spring assembly 103 are both multiple, the number of the pushing piece 160 can be one, the first penetrating part 161 on the pushing piece 160 can be multiple, the multiple first penetrating parts 161 and the multiple moving spring assemblies 103 are correspondingly arranged, and the first penetrating part 161 is penetrated into the first through hole 171 of the corresponding moving spring assembly 103. In this way, by arranging multiple first penetrating parts 161 on the pushing piece 160, the same pushing piece 160 can be used to push multiple moving springs 120 to swing, which is beneficial to reduce the number of the pushing piece 160 and the size of the electromagnetic relay 100.

[0085] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, and as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0086] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a more specific and detailed manner, but should not be construed as limiting the scope of the patent application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An electromagnetic relay, characterized by comprising: The electromagnetic relay comprises a static spring assembly, a moving spring assembly, and a magnetic circuit assembly. The static spring assembly comprises a static spring and a static contact connected to each other, and the static contact is arranged on one side of the static spring in a first direction. The moving spring assembly comprises a moving spring and a moving contact connected to each other, and the moving spring is arranged on the side of the static contact away from the static spring, and the moving contact is arranged on the side of the moving spring facing the static contact. The magnetic circuit assembly is arranged at least partially on the side of the moving spring away from the static spring. In a first state, the static contact and the moving contact are arranged at a distance. In a second state, the static contact and the moving contact are in contact. The moving spring comprises a first extension section, a second extension section, a third extension section, and a fourth extension section arranged in sequence and connected to each other in a second direction, the moving contact is arranged on the first extension section, and the fourth extension section extends away from the static spring. In the first state, the distance between the second extension section and the static spring in the first direction is a first distance, the distance between the third extension section and the static spring in the first direction is a second distance, and in the direction from the second extension section to the third extension section, the first distance gradually decreases, and the second distance gradually increases, and the first direction and the second direction intersect.

2. The electromagnetic relay according to claim 1, characterized in that, In the first state, the second extension section is obliquely intersected with the second direction, and the end of the second extension section close to the first extension section is arranged obliquely in the direction away from the static spring relative to the end away from the first extension section; and / or In the first state, the third extension section is obliquely intersected with the second direction, and the end of the third extension section away from the second extension section is arranged obliquely in the direction away from the static spring relative to the end close to the second extension section.

3. The electromagnetic relay according to claim 1, characterized in that, In the first state, the angle between the first extension section and the second extension section ranges from 165° to 175°; and / or In the first state, the angle between the second extension section and the third extension section ranges from 147° to 163°; and / or In the first state, the angle between the third extension section and the fourth extension section ranges from 95° to 115°.

4. Electromagnetic relay according to any of claims 1-3, characterized in that The electromagnetic relay comprises a push spring, the magnetic circuit assembly comprises an armature, the armature is arranged at a distance on the side of the moving spring away from the static spring, and the push spring is arranged between the armature and the moving spring. The push spring comprises a fifth extension section, a sixth extension section, and a seventh extension section arranged in sequence and connected to each other in the second direction, and the fifth extension section is connected to the armature. In the first state, the seventh extension section is arranged at a distance from the armature, and the distance between the seventh extension section and the armature is a third distance; in the second state, the distance between the seventh extension section and the armature is a fourth distance; and the fourth distance is less than or equal to the third distance.

5. The electromagnetic relay according to claim 4, characterized in that In the first state, the end of the sixth extension section away from the fifth extension section is arranged obliquely in the direction away from the armature relative to the end close to the fifth extension section.

6. The electromagnetic relay according to claim 4, characterized in that, The electromagnetic relay comprises a pusher, the second extension section is provided with a first through hole penetrating the moving spring in the first direction, and the pusher is provided with a first penetrating part penetrating in the first through hole.

7. The electromagnetic relay according to claim 6, characterized in that The seventh extension section is provided with a second through hole penetrating the push spring in the first direction, the armature is provided with a third through hole penetrating the armature in the first direction, and the pusher is provided with a second penetrating part penetrating in the second through hole and the third through hole.

8. The electromagnetic relay according to claim 6, characterized in that, The first penetrating parts on the static spring assembly, the moving spring assembly and the pusher are multiple, the multiple moving spring assemblies and the multiple static spring assemblies are correspondingly arranged, in the first state, the moving contact of the moving spring assembly is arranged in the static contact of the corresponding static spring assembly; in the second state, the moving contact of the moving spring assembly is in contact with the static contact of the corresponding static spring assembly. The first penetrating parts and the moving spring assemblies are correspondingly arranged, and the first penetrating part penetrates in the first through hole of the corresponding moving spring assembly.

9. The electromagnetic relay according to any one of claims 1 to 3, characterized in that The moving spring assembly comprises a lead-out piece, the lead-out piece comprises an eighth extension section, a ninth extension section and a tenth extension section connected in sequence, and the eighth extension section and the tenth extension section are arranged opposite and spaced apart in the first direction. The moving spring is arranged on one side of the ninth extension section in the second direction, and the eighth extension section and the tenth extension section are arranged on the other side of the ninth extension section in the second direction. The electromagnetic relay comprises a base, and the eighth extension section and the tenth extension section are connected to the base by plug-in connection.

10. The electromagnetic relay according to claim 9, characterized in that, The eighth extension section comprises a first surface and a second surface arranged opposite in a third direction, the distance between the first surface and the second surface in the third direction is a fifth distance, and the fifth distance gradually decreases in the direction from the moving spring to the lead-out piece. The base is provided with a plug hole, the eighth extension section is inserted into the plug hole and is in interference fit with the plug hole, and the third direction intersects the first direction and the second direction.

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