Relay

Abstract

The utility model provides a relay which comprises a contact part and a magnetic circuit part. The contact part comprises a static contact bridge, two static leading-out ends and two movable contact bridges; the static contact bridge is provided with two static contacts, and the two first static contacts are located on the two sides of the static contact bridge in the first direction respectively. The two movable contact bridges are respectively arranged on two opposite sides of the static contact bridge and the static leading-out end in the first direction; and the magnetic circuit part can drive the two movable contact bridges to synchronously and reversely move along the first direction, so that the two movable contact bridges are simultaneously connected or disconnected with the corresponding first static contacts and the static leading-out ends. Through the above design, the gap of a single group of contacts can be reduced while the gap of the contacts is prolonged, so that the occupied space of the contact part is reduced, the motion stroke of the movable contact bridge can be shortened, and the driving force required to be provided by the magnetic circuit part is reduced, thereby reducing the size of the magnetic circuit part, and enabling the relay to meet the design requirement of miniaturization.

Description

Technical Field

[0001] The present disclosure relates to a relay. Background Art

[0002] A relay is an electronic control device with a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is commonly used in automatic control circuits, effectively acting as an "automatic switch" that uses a smaller current to control a larger one. Therefore, it performs functions such as automatic regulation, safety protection, and circuit switching within circuits. As relay applications continue to expand, they are also developing towards higher loads and smaller sizes. These higher loads require relays to meet higher voltage requirements, specifically requiring larger contact gaps.

[0003] To achieve a large contact gap, one existing relay solution uses a bridge-type moving contact structure and a direct-push magnetic circuit. However, while this solution can achieve a large contact gap to a certain extent, the magnetic circuit is designed to be larger to meet the requirements of a long-stroke driving contact. This results in a larger overall relay size, making it difficult to meet the design requirements of miniaturization. Utility Model Content

[0004] A main purpose of the present disclosure is to overcome at least one of the above-mentioned defects of the prior art and provide a relay that can achieve a larger contact gap and meet the requirements of miniaturization design.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0006] According to one aspect of the present disclosure, a relay is provided, wherein: the relay includes a contact portion and a magnetic circuit portion; the contact portion includes a static contact bridge, two static lead-out terminals and two moving contact bridges; the static contact bridge is provided with two first static contacts, and the two first static contacts are respectively located on both sides of the static contact bridge in a first direction; the two moving contact bridges are respectively arranged on opposite sides of the static contact bridge and the static lead-out terminals in the first direction; the magnetic circuit portion is capable of driving the two moving contact bridges to move synchronously in opposite directions along the first direction, so that the two moving contact bridges and the corresponding first static contacts and the static lead-out terminals are simultaneously turned on or off.

[0007] According to one embodiment of the present disclosure, the two first static contacts are arranged at intervals along a second direction perpendicular to the first direction; the two static lead-out terminals and the static contact bridge are arranged at intervals along a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and in the second direction, the two static lead-out terminals are respectively arranged corresponding to the two first static contacts.

[0008] According to one embodiment of the present disclosure, the relay further includes a support, and the contact portion and the magnetic circuit portion are both arranged on the support; the contact portion further includes an elastic member, and the two ends of the elastic member in the second direction are respectively a contact end and an assembly end, and the elastic member is mounted on the support with the assembly end, and the moving contact bridge is arranged on the side of the contact end facing the static contact bridge and the static lead-out end; wherein, the elastic member is deformed when the magnetic circuit portion drives the moving contact bridge to move, and drives the moving contact bridge to reset when the contact portion changes from a conductive state to a disconnected state.

[0009] According to one embodiment of the present disclosure, the magnetic circuit portion includes an armature assembly; the armature assembly is located on one side of the contact portion in the first direction, and is rotatably arranged on the support via a rotating shaft extending parallel to the third direction, and the armature assembly has driving ends at both ends in the second direction; the relay also includes two push-pull rods, which extend along the first direction, and each one end of the two push-pull rods is respectively connected to the two driving ends, and the other end of each is respectively push-pull matched with the contact ends of the two elastic members; wherein, the magnetic circuit portion can drive the armature assembly to rotate so that the armature assembly drives the two push-pull rods to move synchronously in opposite directions along the first direction.

[0010] According to one embodiment of the present disclosure, the contact end of the elastic member is provided with a first through hole, and the moving contact bridge is provided with a second through hole, and the first through hole is connected to the second through hole to form a through channel; the push-pull rod passes through the through channel, and the push-pull rod is provided with two push-pull blocks spaced along the first direction, and the two push-pull blocks are respectively located on the side of the elastic member facing away from the first static contact and the side of the moving contact bridge facing the first static contact, and the push-pull rod can push the elastic member or the moving contact bridge via the push-pull blocks to achieve pushing and pulling of the contact end.

[0011] According to one embodiment of the present disclosure, the elastic member further includes a spring, one end of which is integrally connected to the hole wall of the first through hole, and the other end is bent and extended back to the first static contact; wherein, one of the push-pull blocks of the push-pull rod is used to push the other end of the spring against the side facing away from the first static contact.

[0012] According to one embodiment of the present disclosure, two limiting protrusions are provided on the side of the reed facing away from the first static contact, and the two limiting protrusions are arranged at intervals along the third direction to limit the push-pull block on both sides of the third direction when the push-pull block pushes against the reed.

[0013] According to one embodiment of the present disclosure, two moving contacts are provided on the side of the moving contact bridge facing the first static contact, and the two moving contacts are arranged at intervals along the third direction, and the two moving contacts are respectively used to contact and cooperate with the first static contact and the static lead-out end of the static contact bridge; wherein, the second through hole is located between the two moving contacts.

[0014] According to one embodiment of the present disclosure, the elastic member is provided with a third through hole at the assembly end; wherein, along the first direction, the elastic member relatively close to the armature assembly is the first elastic member, the other elastic member is the second elastic member, the push-pull rod that push-pull cooperates with the first elastic member is the first push-pull rod, the other push-pull rod is the second push-pull rod, and the second push-pull rod passes through the third through hole of the first elastic member.

[0015] According to one embodiment of the present disclosure, the third through hole is in a trapezoidal or triangular shape, and the large end of the trapezoidal or triangular shape faces the contact end portion.

[0016] According to one embodiment of the present disclosure, the support includes a substrate, and the relay further includes an armature cover plate, and the substrate and the armature cover plate are both perpendicular to the third direction; the substrate is provided with two brackets extending along the third direction, and the two brackets are arranged at intervals along the second direction, and the two brackets and the substrate together form a accommodating space, and the accommodating space is used to accommodate the coil assembly and the yoke assembly of the magnetic circuit part; the armature cover plate is connected to the side of the bracket facing away from the substrate, and the substrate and the armature cover plate are respectively provided with axial holes with corresponding positions, and the armature assembly is respectively provided with coaxial rotating shafts on both sides of the third direction, and the two rotating shafts are respectively rotatably arranged in the two axial holes.

[0017] According to one embodiment of the present disclosure, the support includes a base plate, the base plate is provided with a first slot, the elastic member is connected to a first plug-in piece at the assembly end, and the first plug-in piece is plugged into the first slot.

[0018] According to one embodiment of the present disclosure, the two elastic members are two components with completely identical structures and arranged axially symmetrically in space, and their symmetry axes are parallel to the third direction.

[0019] According to one embodiment of the present disclosure, the elastic member is made of stainless steel.

[0020] According to one embodiment of the present disclosure, the static contact bridge has a first end and a second end spaced apart in the second direction, one first static contact is arranged on the side of the first end facing the magnetic circuit portion, and the other first static contact is arranged on the side of the second end facing away from the magnetic circuit portion; wherein, along the first direction, the second end is closer to the magnetic circuit portion than the first end.

[0021] According to one embodiment of the present disclosure, the relay further includes a support, the support includes a substrate, the substrate is provided with an assembly platform extending along the third direction, the assembly platform is provided with a second slot, the static contact bridge is provided with a second plug-in piece in the middle of the second direction, and the second plug-in piece is plugged into the second slot.

[0022] According to one embodiment of the present disclosure, when the relay is in the on state, the current flows as follows: from one static lead-out terminal to the moving contact bridge connected to it, through the moving contact bridge to the first static contact connected to it, from one end of the static contact bridge in the second direction to the other end, through the first static contact at the other end to the other moving contact bridge connected to it, and from the other moving contact bridge to the other static lead-out terminal connected to it.

[0023] As can be seen from the above technical solutions, the advantages and positive effects of the relay proposed in this disclosure are:

[0024] The contact portion of the relay proposed in the present disclosure includes a static contact bridge, two static lead-out terminals and two moving contact bridges; the static contact bridge is provided with two first static contacts, the two first static contacts are respectively located on both sides of the static contact bridge in the first direction, and are spaced apart along a second direction perpendicular to the first direction; the two static lead-out terminals and the static contact bridge are spaced apart along a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and in the second direction, the two static lead-out terminals are respectively arranged corresponding to the two first static contacts; the two moving contact bridges are respectively arranged on opposite sides of the static contact bridge and the static lead-out terminals in the first direction; the magnetic circuit portion can drive the two moving contact bridges to move synchronously in opposite directions along the first direction, so that the two moving contact bridges and the corresponding first static contacts and static lead-out terminals are simultaneously turned on or off. Through the above design, the present disclosure provides a contact portion adopting a bridge structure, thereby being able to extend the contact gap and increase the arc voltage at the same time, thereby improving the static volt-ampere characteristics of the arc, which is conducive to rapid arc extinction and reduced contact erosion. Furthermore, while extending the contact gap, the present disclosure also reduces the gap between a single set of contacts, thereby reducing the space occupied by the contact portion and shortening the travel of the moving contact bridge, reducing the driving force required by the magnetic circuit, and thus reducing the volume of the magnetic circuit, enabling the relay to meet miniaturization design requirements. Furthermore, the present disclosure places two moving contact bridges on either side of the stationary contact bridge and the two static lead terminals, respectively, thereby effectively isolating the arcs generated by the two moving contact bridges, preventing mutual influence caused by arcs generated by the bridge contacts.

[0025] In one embodiment of the present disclosure, the relay further includes a support, and the contact portion and the magnetic circuit portion are both arranged on the support; the contact portion further includes an elastic member, and the two ends of the elastic member in the second direction are respectively a contact end and an assembly end, the elastic member is mounted on the support with the assembly end, and the moving contact bridge is arranged on the side of the contact end facing the static contact bridge and the static lead-out end; the elastic member is deformed when the magnetic circuit portion drives the moving contact bridge to move, and drives the moving contact bridge to reset when the contact portion changes from the on state to the off state. Through the above design, the present disclosure can use the elastic member to achieve the reset and disconnection of the moving contact bridge after closing. In addition, a combined design of the moving contact bridge and the elastic member is adopted, in which the moving contact bridge is only used as a current-carrying member, that is, the elastic member does not provide current. Based on this, it is possible to increase the contact gap by adjusting the position of the elastic member while avoiding the appearance of a bell mouth in the contact off state, ensuring centered arcing, and improving the life reliability of the relay. Furthermore, since the elastic member does not carry current but only needs to provide elastic force, the elastic member can be made of a lower-cost material such as stainless steel, without having to consider its electrical conductivity. Also, since there is no need to consider current carrying, the elastic member only needs to ensure the force value, which can further reduce the space occupied by the elastic member. Furthermore, since the elastic member does not carry current, the present disclosure does not need to enlarge or thicken the elastic member to match the current carrying capacity. That is, the reaction force of the elastic member can be set to be smaller, and the magnetic circuit portion does not need to match a larger driving force, thereby reducing the volume of the magnetic circuit portion. On the other hand, since the elastic member does not carry current, only the cross-sections of the moving contact bridge, static contact bridge, and static lead-out terminal need to be adjusted for different load currents. The elastic member and magnetic circuit portion do not need to be adjusted synchronously, thereby enhancing the versatility of the relay. Furthermore, the present disclosure utilizes a combined design of the elastic member and the moving contact bridge, which is equivalent to providing a rigid gasket at the contact end of the elastic member, thereby increasing the stiffness of the contact head.

[0026] In one embodiment of the present disclosure, the magnetic circuit portion includes an armature assembly; the armature assembly is located on one side of the contact portion in the first direction, and is rotatably disposed on a support via a rotating shaft extending parallel to the third direction, and the armature assembly has driving ends at both ends in the second direction; the relay also includes two push-pull rods, the push-pull rods extending along the first direction, each one end of the two push-pull rods being connected to the two driving ends, and each other end being in push-pull cooperation with the contact ends of the two elastic members; wherein the magnetic circuit portion can drive the armature assembly to rotate so that the armature assembly drives the two push-pull rods to move synchronously in opposite directions along the first direction. Through the above design, the present disclosure can realize that the magnetic circuit portion drives the two push-pull rods simultaneously through the armature assembly, thereby realizing the synchronous closing and opening of the two sets of contacts, which can ensure that the contact actions have better synchronization, and the structure is simple and occupies less space.

[0027] In one embodiment of the present disclosure, the contact end of the elastic member is provided with a first through-hole, and the movable contact bridge is provided with a second through-hole. The first through-hole and the second through-hole are connected to form a through-channel. A push-pull rod passes through the through-channel. The push-pull rod is provided with two push-pull blocks spaced along a first direction. The two push-pull blocks are located on the side of the elastic member facing away from the first static contact and on the side of the movable contact bridge facing the first static contact. The push-pull rod can push against the elastic member or the movable contact bridge via the push-pull blocks to achieve pushing and pulling of the contact end. Through the above-mentioned design, the present disclosure utilizes through-holes provided at corresponding positions of the elastic member and the movable contact bridge to form a through-channel, thereby achieving the insertion of the push-pull rod, avoiding the push-pull rod being arranged outside the elastic member and the movable contact bridge, and thus reducing space usage. In some embodiments, the push-pull rod can also be arranged outside the elastic member and the movable contact bridge. In this case, the elastic member and the movable contact bridge do not need to have the above-mentioned through-holes. In this case, the push-pull rod can still be provided with the above-mentioned push-pull blocks, and the structure and position of the push-pull blocks can be adjusted to achieve a specific push-pull action, without being limited to this embodiment.

[0028] In one embodiment of the present disclosure, the elastic member may further include a spring, one end of which may be integrally connected to the hole wall of the first through hole, and the other end of which is bent and extended away from the static contact bridge. Accordingly, a push-pull block of the push-pull rod is used to push the other end of the spring toward the side of the first static contact. Through the above design, the present disclosure can utilize the deformation of the flexible closure of the spring to generate pressure, and the pressure can be adjusted by adjusting the groove depth and width of the spring, and the elastic member provides contact pressure in the closed state and reset reaction force in the disconnected state through the deformation of the spring, matching the suction reaction force in the disconnected state and the closed state, without the need for additional design parts to provide reaction force. In some embodiments, the spring may also be integrally connected to other positions of the elastic member, or the spring and the elastic member are not limited to an integral structure. For example, the spring and the elastic member may be two connected components, which are not limited to the present embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The various objects, features, and advantages of the present disclosure will become more apparent upon consideration of the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout.

[0030] Figure 1 and Figure 2 Schematic diagrams of three-dimensional structures of a partial structure of a relay at two different viewing angles according to an exemplary embodiment;

[0031] Figure 3 yes Figure 1 Side view of;

[0032] Figure 4 and Figure 5 In two different states, Figure 3 The cross-sectional view made by the straight line AA in;

[0033] Figure 6 It is along Figure 4 Schematic diagram of the cross section made by the straight line BB in;

[0034] Figure 7 yes Figure 1 Schematic diagram of the three-dimensional decomposition of

[0035] Figure 8 and Figure 9 They are three-dimensional enlarged schematic diagrams of the contact part of the relay in two different states;

[0036] Figure 10 and Figure 11 They are Figure 8 Schematic diagram of the three-dimensional structure of the partial structure shown at two different viewing angles;

[0037] Figure 12 yes Figure 11 Schematic diagram of the floor plan;

[0038] Figure 13 and Figure 14 They are three-dimensional enlarged schematic diagrams of the moving contact bridge at two different viewing angles;

[0039] Figure 15 It is a three-dimensional enlarged schematic diagram of the static contact bridge;

[0040] Figure 16 It is a three-dimensional enlarged schematic diagram of the magnetic circuit part of the relay.

[0041] Figure 17 It is a schematic diagram of the three-dimensional structure of the support.

[0042] The following are the descriptions of the reference numerals:

[0043] 100. Support; 23111. First through hole;

[0044] 110. Base plate; 2312. Assembly end;

[0045] 111. Bracket; 23121. Third through hole;

[0046] 112. Axis hole; 2313. Reed;

[0047] 113. First slot; 23131. Limiting protrusion;

[0048] 114. Assembly table; 2314. First insert;

[0049] 115. Second slot; 232. Moving contact bridge;

[0050] 120. Armature cover plate; 2321. Second through hole;

[0051] 121. Shaft hole; 2322. Moving contact;

[0052] 210.Stationary contact bridge; 310.Armature assembly;

[0053] 211. First static contact; 311. Rotating shaft;

[0054] 212. First end; 320. Push-pull rod;

[0055] 213. Second end; 321. Push-pull block;

[0056] 214. Second plug; 330. Coil assembly;

[0057] 220. Static lead terminal; 340. Yoke assembly;

[0058] 221. Second static contact; X. First direction;

[0059] 231. Elastic member; Y. Second direction;

[0060] 2311. Contact end; Z. Third direction. DETAILED DESCRIPTION

[0061] Typical embodiments that embody the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various variations in different embodiments without departing from the scope of the present disclosure, and the description and drawings therein are essentially for illustrative purposes rather than for limiting the present disclosure.

[0062] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of this disclosure and in which are shown by way of example different exemplary structures, systems and steps that may implement aspects of the present disclosure. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps may be used, and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "above", "between", "within", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein for convenience only, for example, according to the directions of the examples depicted in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of a structure to fall within the scope of the present disclosure.

[0063] See Figure 1 and Figure 2, which respectively represent schematic diagrams of the three-dimensional structure of the partial structure of the relay proposed in the present disclosure from two different perspectives. In this exemplary embodiment, the relay proposed in the present disclosure is described by taking the application of the relay in the charging and energy storage scenarios as an example. It will be readily understood by those skilled in the art that in order to apply the relevant designs of the present disclosure to other types of relays, various modifications, additions, substitutions, deletions or other changes may be made to the specific embodiments described below, and such changes will still be within the scope of the principles of the relay proposed in the present disclosure.

[0064] like Figure 1 and Figure 2 As shown, in one embodiment of the present disclosure, the relay proposed in the present disclosure includes a contact part and a magnetic circuit part. Figures 3 to 17 , Figure 3 Representatively shown in Figure 1 Side view of; Figure 4 and Figure 5 The following diagrams are representatively shown in two different states: Figure 3 The cross-sectional view made by the straight line AA in; Figure 6 The representative diagram along Figure 4 Schematic diagram of the cross section made by the straight line BB in; Figure 7 Representatively shown in Figure 1 Schematic diagram of the three-dimensional decomposition of Figure 8 and Figure 9 The three-dimensional enlarged schematic diagrams of the contact part in two different states are representatively shown; Figure 10 and Figure 11 Representatively shown Figure 8 The three-dimensional structure diagram of the partial structure shown in two different viewing angles specifically shows the combined structure of the two moving contact bridges 232 and the two push-pull rods 320; Figure 12 Representatively shown in Figure 11 Schematic diagram of the floor plan; Figure 13 and Figure 14 The three-dimensional enlarged schematic diagrams of the movable contact bridge 232 at two different viewing angles are respectively representatively shown; Figure 15 : A three-dimensional enlarged schematic diagram of the static contact bridge 210 is representatively shown; Figure 16 A three-dimensional enlarged schematic diagram of the magnetic circuit portion is representatively shown in FIG. Figure 17 The figure shows a schematic diagram of the three-dimensional structure of the support 100. The two different states in the above figure are the contact opening state and the contact closing state of the relay, for example Figure 4 and Figure 8 The contacts are disconnected. Figure 5 and Figure 9The structure, connection mode and functional relationship of the main components of the relay proposed in this disclosure will be described in detail below with reference to the above drawings.

[0065] like Figures 1 to 5 As shown, in one embodiment of the present disclosure, the contact portion includes a stationary contact bridge 210, two stationary lead terminals 220, and two moving contact bridges 232. The stationary contact bridge 210 is provided with two first stationary contacts 211. The first stationary contacts 211 can, for example, be integrally formed with the stationary contact bridge 210. The two first stationary contacts 211 are located on either side of the stationary contact bridge 210 in the first direction X. This embodiment is described using the example of a stationary contact bridge 210 having only one first stationary contact 211 on each side. In some embodiments, the first stationary contact 211 on each side of the stationary contact bridge 210 may further include at least two sub-contacts. The two moving contact bridges 232 are arranged on opposite sides of the stationary contact bridge 210 and the stationary lead terminals 220 in the first direction X. The magnetic circuit portion is capable of driving the two moving contact bridges 232 to move synchronously in opposite directions along the first direction X, so that the two moving contact bridges 232 and the corresponding first stationary contacts 211 and stationary lead terminals 220 are simultaneously connected or disconnected. Through the above-mentioned design, the present disclosure provides a contact portion adopting a bridge structure, thereby being able to extend the contact gap and increase the arc voltage at the same time, thereby improving the static volt-ampere characteristics of the arc, which is conducive to rapid arc extinguishing and reducing contact erosion. In addition, while extending the contact gap, the present disclosure can also reduce the gap of a single group of contacts, thereby reducing the space occupied by the contact portion, and can shorten the movement stroke of the moving contact bridge 232, reducing the driving force required to provide the magnetic circuit part, thereby reducing the volume of the magnetic circuit part, so that the relay meets the design requirements of miniaturization. On this basis, the present disclosure respectively arranges the two moving contact bridges 232 on both sides of the static contact bridge 210 and the two static lead-out terminals 220, thereby achieving effective isolation of the arcs generated by the moving contact bridges 232 on both sides, and avoiding mutual influence when the bridge contacts generate arcs.

[0066] like Figures 1 to 9 As shown, in one embodiment of the present disclosure, two first static contacts 211 are arranged at intervals along a second direction Y perpendicular to the first direction X. Two static lead-out terminals 220 are arranged at intervals from the static contact bridge 210 along a third direction Z, which is perpendicular to the first direction X and the second direction Y. In the second direction Y, the two static lead-out terminals 220 are arranged corresponding to the two first static contacts 211, respectively. A second static contact 221 may also be provided on one side of the static lead-out terminal 220 in the first direction X. The second static contact 221 may be integrally formed with the static lead-out terminal 220, for example. The second static contact 221 of the static lead-out terminal 220 and the corresponding first static contact 211 (for example, on the same side in the second direction Y) are located on the same side in the first direction, i.e., they face a common moving contact bridge 232.

[0067] like Figures 1 to 9 As shown, in one embodiment of the present disclosure, the relay proposed in the present disclosure further includes a support 100, and the contact portion and the magnetic circuit portion are both disposed on the support 100. Furthermore, the contact portion may further include an elastic member 231, with the two ends of the elastic member 231 in the second direction Y being a contact end 2311 and an assembly end 2312, respectively. The elastic member 231 is mounted on the support 100 with the assembly end 2312, and the movable contact bridge 232 is disposed on the side of the contact end 2311 facing the stationary contact bridge 210 and the stationary lead-out terminal 220. Based on this, the elastic member 231 deforms when the magnetic circuit portion drives the movable contact bridge 232 to move. During this process, the elastic member 231 accumulates elastic potential energy due to its own deformation. When the contact portion transitions from a conducting state to a disconnected state, the elastic member 231 releases the elastic potential energy, driving the movable contact bridge 232 to reset. Through the above design, the present disclosure can utilize the elastic member 231 to reset and disconnect the movable contact bridge 232 after closing. Furthermore, a combined design of a movable contact bridge 232 and an elastic member 231 is employed, wherein the movable contact bridge 232 serves solely as a current-carrying member, i.e., the elastic member 231 does not provide current. This allows the contact gap to be increased by adjusting the position of the elastic member 231 while avoiding the appearance of a bell mouth in the open contact state (e.g., the conversion ratio of the armature assembly 310 stroke to the contact gap is 1:1), ensuring centered arcing and improving the lifespan and reliability of the relay. Furthermore, because the present disclosure can increase the contact gap compared to existing solutions, i.e., the movable contact bridge 232 has a shorter travel, the present disclosure can reduce the deformation amplitude of the elastic member 231 when used, reducing metal fatigue and thus extending the service life of the elastic member. Furthermore, since the elastic member 231 does not carry current but only needs to provide elastic force, the elastic member 231 can be made of a relatively low-cost material such as stainless steel, without having to consider its electrical conductivity. Furthermore, since there is no need to consider current carrying, the elastic member 231 only needs to ensure a force value, which can further reduce the space occupied by the elastic member 231. Furthermore, since the elastic member 231 does not carry current, the present disclosure does not need to enlarge or thicken the elastic member 231 to match the current carrying capacity. That is, the reaction force of the elastic member 231 can be set to be relatively small, and the magnetic circuit portion does not need to match a relatively large driving force, thereby reducing the volume of the magnetic circuit portion. Furthermore, since the elastic member 231 does not carry current, only the cross-sections of the moving contact bridge 232, the static contact bridge 210, and the static lead-out terminal 220 need to be adjusted for different load currents. The elastic member 231 and the magnetic circuit portion do not need to be adjusted synchronously, thereby enhancing the versatility of the relay (which is more advantageous for subsequent serialized product current carrying capacity enhancement and parallel development without requiring changes to the magnetic circuit portion). In addition, the present disclosure utilizes a combined design of the elastic member 231 and the moving contact bridge 232 , which is equivalent to providing a rigid gasket to the contact end 2311 of the elastic member 231 , thereby increasing the stiffness of the contact head and facilitating rapid disconnection of the contacts.

[0068] Based on the design that the contact portion includes the elastic member 231, in one embodiment of the present disclosure, the movable contact bridge 232 can be fixed to the contact end 2311 of the elastic member 231 by riveting. In some embodiments, the movable contact bridge 232 and the elastic member 231 can also be assembled and connected by other methods, which are not limited to this embodiment.

[0069] like Figures 1 to 9 、 Figure 16 As shown, based on the design that the contact portion includes an elastic member 231, in one embodiment of the present disclosure, the magnetic circuit portion can include an armature assembly 310. The armature assembly 310 is located on one side of the contact portion in the first direction X. The armature assembly 310 is rotatably disposed on the support 100 via a rotating shaft 311 extending parallel to the third direction Z. The armature assembly 310 has driving ends at both ends in the second direction Y. On this basis, the relay proposed in the present disclosure also includes two push-pull rods 320, which extend along the first direction X. Each one end of the two push-pull rods 320 is connected to the two driving ends, and the other end of the two push-pull rods 320 is respectively pushed and pulled with the contact ends 2311 of the two elastic members 231. Accordingly, the magnetic circuit portion can drive the armature assembly 310 to rotate, causing the armature assembly 310 to drive the two push-pull rods 320 to move synchronously in opposite directions along the first direction X. Through the above design, the present disclosure can realize that the magnetic circuit part drives the two push-pull rods 320 simultaneously through the armature assembly 310, thereby realizing the synchronous closing and opening of the two sets of contacts, which can ensure that the contact actions have better synchronization, and has a simple structure and occupies less space.

[0070] like Figure 7 and Figure 8As shown, based on the design of the relay including a push-pull rod 320, in one embodiment of the present disclosure, the contact end 2311 of the elastic member 231 can be provided with a first through-hole 23111, and the movable contact bridge 232 can be provided with a second through-hole 2321. The first through-hole 23111 and the second through-hole 2321 are connected to form a through-channel. Accordingly, the push-pull rod 320 can pass through the through-channel, and the push-pull rod 320 is provided with two push-pull blocks 321 spaced apart along the first direction X. The two push-pull blocks 321 are respectively located on the side of the elastic member 231 facing away from the first static contact 211 and on the side of the movable contact bridge 232 facing the first static contact 211. The push-pull rod 320 can push against the elastic member 231 or the movable contact bridge 232 via the push-pull blocks 321 to achieve pushing and pulling of the contact end 2311. Through the above-mentioned design, the present disclosure utilizes through-holes provided at corresponding positions of the elastic member 231 and the movable contact bridge 232 to form a through-channel, thereby enabling the insertion of the push-pull rod 320, thereby preventing the push-pull rod 320 from being arranged outside the elastic member 231 and the movable contact bridge 232 (for example, on the side in the second direction Y or the third direction Z), thereby reducing space usage. In some embodiments, the push-pull rod 320 can also be arranged outside the elastic member 231 and the movable contact bridge 232, in which case the elastic member 231 and the movable contact bridge 232 do not need to have the above-mentioned through-holes. In this case, the push-pull rod 320 can still be provided with the above-mentioned push-pull block 321, and the structure and position of the push-pull block 321 can be adjusted to achieve a specific push-pull action, which is not limited to this embodiment.

[0071] like Figures 7 to 14 As shown, based on the design of the elastic member 231 being provided with a first through hole 23111, in one embodiment of the present disclosure, the elastic member 231 may further include a reed 2313. One end of the reed 2313 may be integrally connected to the wall of the first through hole 23111, and the other end of the reed 2313 bends and extends away from the first static contact 211. Accordingly, a push-pull block 321 of the push-pull rod 320 is used to push against the side of the other end of the reed 2313 facing away from the first static contact 211. Through the above design, the present disclosure can utilize the deformation of the reed 2313 due to its flexible closure to generate pressure, and this pressure can be adjusted by adjusting the groove depth and width of the reed 2313. The elastic member 231 provides contact pressure in the closed state and a return reaction force in the open state through the deformation of the reed 2313, matching the suction reaction force in the open and closed states without requiring additional design parts to provide reaction force. In some embodiments, the reed 2313 may also be integrally connected to other positions of the elastic member 231, or the reed 2313 and the elastic member 231 are not limited to an integral structure. For example, the reed 2313 and the elastic member 231 may be two connected components, which is not limited to this embodiment.

[0072] like Figure 8 、 Figure 12 and Figure 13As shown, based on the design that the elastic member 231 includes a reed 2313, in one embodiment of the present disclosure, two limiting protrusions 23131 can be provided on the side of the reed 2313 facing away from the first static contact 211. The two limiting protrusions 23131 are spaced apart along the third direction Z. When the push-pull block 321 pushes against the reed 2313, the two limiting protrusions 23131 can limit the push-pull block 321 on both sides in the third direction Z. Through the above design, the present disclosure can further improve the stability and accuracy of the push-pull action of the push-pull rod 320.

[0073] like Figures 7 to 14 As shown, based on the design of the second through-hole 2321 provided on the movable contact bridge 232, in one embodiment of the present disclosure, two movable contacts 2322 are provided on the side of the movable contact bridge 232 facing the first static contact 211. These two movable contacts 2322 are spaced apart along the third direction Z. Specifically, one movable contact 2322 contacts and mates with a first static contact 211 of the static contact bridge 210, while the other movable contact 2322 contacts and mates with a static lead-out terminal 220. Based on this, the second through-hole 2321 can be located between the two movable contacts 2322. Through this design, the present disclosure can ensure more uniform pressure when the push-pull rod 320 pushes and pulls the movable contact bridge 232, further improving the stability of the push-pull action. In some embodiments, the second through hole 2321 may also be arranged at other positions of the moving contact bridge 232, for example, it may be located on one side of the two moving contacts 2322 in the second direction Y, or it may be located on the side of one moving contact 2322 away from the other moving contact 2322 in the third direction Z, without being limited to the above embodiments.

[0074] like Figure 7 、 Figure 11 、 Figure 13 and Figure 14 As shown, based on the design of the push-pull rod 320 passing through the through-channel, in one embodiment of the present disclosure, the elastic member 231 can be provided with a third through-hole 23121 at the assembly end 2312. Here, along the first direction X, the elastic member 231 relatively close to the armature assembly 310 is defined as the first elastic member 231, and the other elastic member 231 is defined as the second elastic member 231. Furthermore, the push-pull rod 320 that push-pull cooperates with the first elastic member 231 is defined as the first push-pull rod 320, and the other push-pull rod 320 is defined as the second push-pull rod 320. On this basis, the second push-pull rod 320 can pass through the third through-hole 23121 of the first elastic member 231. Through the above design, the present disclosure can utilize the third through-hole 23121 for the push-pull rod 320 to pass through, avoiding structural interference between the push-pull rod 320 and the other elastic member 231 when the present disclosure adopts a design in which the push-pull rod 320 cooperates with the through-channel. At the same time, the present disclosure can adjust the pressure generated by the deformation of the flexible closure of the reed 2313 by adjusting the shape and length and width of the third through hole 23121.

[0075] like Figure 7 、 Figure 11 、 Figure 13 and Figure 14 As shown, based on the design that the elastic member 231 is provided with a third through hole 23121 , in one embodiment of the present disclosure, the third through hole 23121 can be trapezoidal or triangular, with the large end of the trapezoid or triangle facing the contact end 2311 .

[0076] like Figure 1 、 Figure 4 、 Figure 5 and Figure 17 As shown, based on the design in which the magnetic circuit portion includes an armature assembly 310, in one embodiment of the present disclosure, the support 100 may include a base plate 110, and the relay proposed in the present disclosure may further include an armature cover plate 120. Both the base plate 110 and the armature cover plate 120 are perpendicular to the third direction Z. Specifically, the base plate 110 is provided with two brackets 111 extending along the third direction Z. The two brackets 111 are spaced apart along the second direction Y. The two brackets 111 and the base plate 110 together form a storage space for accommodating the coil assembly 330 and yoke assembly 340 of the magnetic circuit portion. The armature cover plate 120 is connected to the side of the brackets 111 facing away from the base plate 110. The base plate 110 and the armature cover plate 120 respectively define corresponding axial holes 112 and 121. The armature assembly 310 is provided with coaxial rotating shafts 311 on both sides in the third direction Z. The two rotating shafts 311 are rotatably disposed in the two axial holes 112 and 121, respectively.

[0077] like Figure 13 、 Figure 14 and Figure 17 As shown, based on the design of a relay including a support 100 and a contact portion including an elastic member 231, in one embodiment of the present disclosure, the support 100 includes a substrate 110, which may be provided with a first slot 113. Correspondingly, the elastic member 231 may be connected to a first insert 2314 at its assembly end 2312, and the first insert 2314 is plugged into the first slot 113. Through the above design, the present disclosure can utilize the first insert 2314 and the first slot 113 to achieve plug-in assembly of the elastic member 231 on the substrate 110, which is convenient and efficient. In other embodiments, the elastic member 231 may also be assembled with the support 100 using other methods, and is not limited to this embodiment.

[0078] like Figures 10 to 12As shown, based on the design that the contact portion includes an elastic member 231, in one embodiment of the present disclosure, the two elastic members 231 can be two components with completely identical structures and arranged axially symmetrically in space, and the symmetry axes of the two elastic members 231 extend parallel to the third direction Z. In particular, when the elastic members 231 are provided with third through holes 23121, the third through hole 23121 of one of the elastic members 231 (e.g., the first elastic member 231 described above) can allow another push-pull rod 320 (e.g., the second push-pull rod 320 described above) to pass through, while the third through hole 23121 of the other elastic member 231 (e.g., the second elastic member 231 described above) does not require a push-pull rod 320 to pass through (e.g., the first push-pull rod 320 described above does not need to pass through the third through hole 23121 of the second elastic member 231). At this time, when the two elastic parts 231 still adopt a design with exactly the same structure (that is, both are provided with a third through hole 23121), the present invention does not need to distinguish between the elastic part 231 with the third through hole 23121 and the elastic part 231 without the third through hole 23121 when assembling the two elastic parts 231, thereby further reducing the difficulty of assembly and improving efficiency.

[0079] Based on the design of the contact portion including the elastic member 231, in one embodiment of the present disclosure, the elastic member 231 can be made of stainless steel. Through the above design, since the elastic member 231 proposed in the present disclosure does not need to consider current carrying, stainless steel can be used, thereby reducing material costs.

[0080] like Figure 3 and Figure 8 As shown, in one embodiment of the present disclosure, the two ends of the movable contact bridge 232 in the third direction Z (for example, the two movable contacts 2322 of the same movable contact bridge 232) can respectively correspond to the first static contact 211 (i.e., the end of the static contact bridge 210) and the static lead-out terminal 220 located on the same side in the second direction Y, thereby avoiding the situation where one side closes first and does not increase the space occupied in the second direction Y. Accordingly, the two movable contact bridges 232 can be arranged in an interlaced manner in the second direction Y, which can reduce the structural complexity and assembly difficulty. In some embodiments, the two ends of the movable contact bridge 232 (for example, the two movable contacts 2322 of the same movable contact bridge 232) can also respectively correspond to the first static contact 211 (i.e., the end of the static contact bridge 210) and the static lead-out terminal 220 located on different sides in the second direction Y, and the present invention is not limited to this embodiment.

[0081] like Figure 4 、 Figure 5 、 Figure 8 and Figure 9As shown, in one embodiment of the present disclosure, the static contact bridge 210 has a first end 212 and a second end 213 spaced apart in the second direction Y. One first static contact 211 of the static contact bridge 210 is disposed on the side of the first end 212 facing the magnetic circuit portion, and the other first static contact 211 of the static contact bridge 210 is disposed on the side of the second end 213 facing away from the magnetic circuit portion. On this basis, along the first direction X, the second end 213 can be closer to the magnetic circuit portion than the first end 212. Through the above design, the present disclosure can stagger the first static contacts 211 on both sides of the static contact bridge 210 in the first direction X, thereby approaching their respective corresponding moving contact bridges 232, which is conducive to further reducing the spacing between the two sets of moving contact bridges 232 in the first direction X, thereby reducing the space occupied by the contact parts in the first direction X.

[0082] like Figure 15 and Figure 17 As shown, in one embodiment of the present disclosure, the relay further includes a support 100, which may include a base 110. The base 110 is provided with an assembly platform 114 extending along the third direction Z. The assembly platform 114 is provided with a second slot 115. Correspondingly, the static contact bridge 210 may be provided with a second insert 214 at its central portion in the second direction Y. The second insert 214 is plugged into the second slot 115. Through the above design, the present disclosure can utilize the second insert 214 and the second slot 115 to achieve plug-in assembly of the static contact bridge 210 on the base 110, which is convenient and efficient. In other embodiments, the static contact bridge 210 may also be assembled with the support 100 using other methods, and is not limited to this embodiment.

[0083] like Figure 9As shown, in one embodiment of the present disclosure, when the relay proposed in the present disclosure is in the on state, the current flows as follows: from one static lead-out terminal 220 to the movable contact bridge 232 connected thereto, through the movable contact bridge 232 to the first static contact 211 connected thereto, from one end of the static contact bridge 210 in the second direction Y to the other end, through the first static contact 211 at the other end to the other movable contact bridge 232 connected thereto, and from the other movable contact bridge 232 to the other static lead-out terminal 220 connected thereto. Through the above design, the present disclosure can achieve a contact gap of the relay that is four times that of a single set of contacts. For example, if the single contact gap is 2mm, the contact gap of the relay can meet 8mm, and the specific value of the above gap can be controlled by adjusting the stroke. At the same time, when the contacts are separated, the four contacts become four breakpoints, and arcs are generated at the four breakpoints respectively. Accordingly, the present disclosure increases the number of breakpoints to achieve simultaneous disconnection of the four breakpoints, forming four arc segments. Compared with the existing solution using a double breakpoint structure, the present disclosure can double the number of arc segments. Among them, each of the four arc segments has a cathode and anode voltage drop, that is, a total of eight pole-side voltage drops are formed, and the present disclosure can double the pole-side voltage drop. In addition, under the condition of a certain contact opening distance, the increase in the number of arc segments doubles the sum of the arc lengths, that is, the total length of the arc column area increases, the arc column area voltage drop doubles, and the arc voltage increases significantly, thereby improving the static volt-ampere characteristics of the arc, which is conducive to rapid arc extinguishing, reducing contact erosion, and improving the life and voltage and current resistance of the contactor.

[0084] It should be noted that the relays shown in the drawings and described in this specification are only a few examples of the many types of relays that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are in no way limited to any details or any components of the relays shown in the drawings or described in this specification.

[0085] In summary, the contact portion of the relay proposed in the present disclosure includes a static contact bridge 210, two static lead-out terminals 220 and two moving contact bridges 232; the static contact bridge 210 is provided with two first static contacts 211, which are respectively located on both sides of the static contact bridge 210 in the first direction X and are arranged at intervals along the second direction Y perpendicular to the first direction X; the two static lead-out terminals 220 are arranged at intervals with the static contact bridge 210 along the third direction Z, which is perpendicular to the first direction X and perpendicular to the second direction Y. In the second direction Y, the two static lead-out terminals 220 are respectively arranged corresponding to the two first static contacts 211; the two moving contact bridges 232 are respectively arranged on opposite sides of the static contact bridge 210 and the static lead-out terminals 220 in the first direction X; the magnetic circuit part can drive the two moving contact bridges 232 to move synchronously in opposite directions along the first direction X, so that the two moving contact bridges 232 and the corresponding first static contacts 211 and static lead-out terminals 220 are simultaneously turned on or off. Through the above-mentioned design, the present disclosure provides a contact portion adopting a bridge structure, thereby being able to extend the contact gap and increase the arc voltage at the same time, thereby improving the static volt-ampere characteristics of the arc, which is conducive to rapid arc extinguishing and reducing contact erosion. In addition, while extending the contact gap, the present disclosure can also reduce the gap of a single group of contacts, thereby reducing the space occupied by the contact portion, and can shorten the movement stroke of the moving contact bridge 232, reducing the driving force required to provide the magnetic circuit part, thereby reducing the volume of the magnetic circuit part, so that the relay meets the design requirements of miniaturization. On this basis, the present disclosure respectively arranges the two moving contact bridges 232 on both sides of the static contact bridge 210 and the two static lead-out terminals 220, thereby achieving effective isolation of the arcs generated by the moving contact bridges 232 on both sides, and avoiding mutual influence when the bridge contacts generate arcs.

[0086] The exemplary embodiments of the relay proposed by the present disclosure are described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of one embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "an", and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including", and "having" are used to express open-ended inclusion and mean that in addition to the listed elements / components / etc., additional elements / components / etc. may be present. In addition, the terms "first" and "second", etc. in the claims and the specification are used only as labels and are not numerical limitations on their objects.

[0087] While the relays presented in this disclosure have been described in terms of various specific embodiments, those skilled in the art will recognize that the disclosure can be practiced with modification within the spirit and scope of the claims.

Claims

1. A relay, characterized in that: The relay includes a contact part and a magnetic circuit part; The contact part includes a static contact bridge, two static lead-out terminals and two moving contact bridges; The static contact bridge is provided with two first static contacts, and the two first static contacts are respectively located on both sides of the static contact bridge in the first direction; the two moving contact bridges are respectively arranged on opposite sides of the static contact bridge and the static lead-out terminal in the first direction; The magnetic circuit portion can drive the two moving contact bridges to move synchronously in opposite directions along the first direction, so that the two moving contact bridges and the corresponding first static contacts and the static lead-out terminals are simultaneously connected or disconnected.

2. The relay according to claim 1, wherein: The two first static contacts are arranged at intervals along a second direction perpendicular to the first direction; the two static lead-out terminals and the static contact bridge are arranged at intervals along a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and in the second direction, the two static lead-out terminals are respectively arranged corresponding to the two first static contacts.

3. The relay according to claim 2, characterized in that The relay also includes a support, and the contact part and the magnetic circuit part are both arranged on the support; the contact part also includes an elastic member, and the two ends of the elastic member in the second direction are respectively a contact end and an assembly end, and the elastic member is installed on the support with the assembly end, and the moving contact bridge is arranged on the side of the contact end facing the static contact bridge and the static lead-out end; wherein, the elastic member is deformed when the magnetic circuit part drives the moving contact bridge to move, and drives the moving contact bridge to reset when the contact part changes from a conductive state to a disconnected state.

4. The relay according to claim 3, characterized in that The magnetic circuit part includes an armature assembly; the armature assembly is located on one side of the contact part in the first direction, and is rotatably arranged on the support via a rotating shaft extending parallel to the third direction, and the armature assembly has driving ends at both ends in the second direction; the relay also includes two push-pull rods, which extend along the first direction, and each one end of the two push-pull rods is connected to the two driving ends respectively, and the other end of each push-pull rod is respectively pushed and pulled with the contact ends of the two elastic members; wherein, the magnetic circuit part can drive the armature assembly to rotate so that the armature assembly drives the two push-pull rods to move synchronously in opposite directions along the first direction.

5. The relay according to claim 4, characterized in that The contact end of the elastic member is provided with a first through hole, and the moving contact bridge is provided with a second through hole, and the first through hole is connected to the second through hole to form a through channel; the push-pull rod passes through the through channel, and the push-pull rod is provided with two push-pull blocks spaced along the first direction, and the two push-pull blocks are respectively located on the side of the elastic member facing away from the first static contact and the side of the moving contact bridge facing the first static contact, and the push-pull rod can push the elastic member or the moving contact bridge via the push-pull blocks to achieve pushing and pulling of the contact end.

6. The relay according to claim 5, characterized in that The elastic member also includes a spring, one end of which is integrally connected to the hole wall of the first through hole, and the other end is bent and extended away from the first static contact; wherein, one of the push-pull blocks of the push-pull rod is used to push the other end of the spring against the side facing away from the first static contact.

7. The relay according to claim 6, characterized in that Two limiting protrusions are provided on the side of the spring sheet facing away from the first static contact, and the two limiting protrusions are arranged at intervals along the third direction to limit the push-pull block on both sides in the third direction when the push-pull block pushes against the spring sheet.

8. The relay according to claim 5, characterized in that Two moving contacts are provided on the side of the moving contact bridge facing the first static contact, and the two moving contacts are arranged at intervals along the third direction. The two moving contacts are respectively used to contact and cooperate with the first static contact and the static lead-out terminal of the static contact bridge; wherein the second through hole is located between the two moving contacts.

9. The relay according to claim 5, characterized in that The elastic member is provided with a third through hole at the assembly end; wherein, along the first direction, the elastic member relatively close to the armature assembly is the first elastic member, the other elastic member is the second elastic member, the push-pull rod that push-pull cooperates with the first elastic member is the first push-pull rod, the other push-pull rod is the second push-pull rod, and the second push-pull rod passes through the third through hole of the first elastic member.

10. The relay according to claim 9, characterized in that The third through hole is in a trapezoidal or triangular shape, and the larger end of the trapezoidal or triangular shape faces the contact end portion.

11. The relay according to claim 4, characterized in that The support includes a substrate, and the relay also includes an armature cover plate, and the substrate and the armature cover plate are both perpendicular to the third direction; the substrate is provided with two brackets extending along the third direction, and the two brackets are arranged at intervals along the second direction, and the two brackets and the substrate together form a accommodating space, and the accommodating space is used to accommodate the coil assembly and yoke assembly of the magnetic circuit part; the armature cover plate is connected to the side of the bracket facing away from the substrate, and the substrate and the armature cover plate are respectively provided with corresponding axial holes, and the armature assembly is respectively provided with coaxial rotating shafts on both sides of the third direction, and the two rotating shafts are respectively rotatably arranged in the two axial holes.

12. The relay according to claim 3, characterized in that The support includes a base plate, the base plate is provided with a first slot, the elastic member is connected to a first plug-in piece at the assembly end, and the first plug-in piece is plugged into the first slot.

13. The relay according to claim 3, characterized in that The two elastic members are two components with completely identical structures and are arranged axially symmetrically in space, with their symmetry axes parallel to the third direction.

14. The relay according to claim 3, characterized in that The elastic member is made of stainless steel.

15. The relay according to claim 2, wherein: The static contact bridge has a first end and a second end spaced apart in the second direction, one first static contact is arranged on the side of the first end facing the magnetic circuit portion, and the other first static contact is arranged on the side of the second end facing away from the magnetic circuit portion; wherein, along the first direction, the second end is closer to the magnetic circuit portion than the first end.

16. The relay according to claim 2, characterized in that The relay further includes a support, the support including a substrate, the substrate is provided with an assembly platform extending along the third direction, the assembly platform is provided with a second slot, the static contact bridge is provided with a second plug in the middle in the second direction, and the second plug is plugged into the second slot.

17. The relay according to claim 2, characterized in that When the relay is in the on state, the current flows as follows: from one static lead-out terminal to the moving contact bridge connected to it, through the moving contact bridge to the first static contact connected to it, from one end of the static contact bridge in the second direction to the other end, through the first static contact at the other end to the other moving contact bridge connected to it, and from the other moving contact bridge to the other static lead-out terminal connected to it.

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