Relay

Abstract

The utility model provides a relay. The relay comprises a shell and a functional module arranged on the shell, the functional module comprises two pushing pieces, a contact assembly and two magnetic circuit units; the pushing part is suitable for moving in the first direction relative to the shell. The contact assembly comprises a movable spring assembly and two static reeds. The middle part of the movable spring assembly in the second direction is relatively fixed with the shell, and the two contact end parts respectively follow the two pushing pieces; the static reed is located on one side of the movable reed assembly in the first direction, a part of the static reed extends out of the shell in the leading-out direction to form a leading-out end, and the leading-out direction is parallel to a reference plane where the static reed is located and perpendicular to the first direction. A heat dissipation piece is arranged on the side, back on to the movable spring assembly, of the static reed and extends out of the shell in the first direction. The magnetic circuit unit comprises a coil assembly which is suitable for exciting and de-exciting the coil assembly to drive the pushing piece to move in the first direction so as to drive a movable contact arranged on the contact end portion and a static contact arranged on the static reed to be closed or opened.

Description

Technical Field

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

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

[0003] With the widespread application of relays, combined with the application requirements of the whole machine, in order to achieve the heat dissipation effect of the static reed, a design of connecting a heat sink to the static reed is adopted.

[0004] However, the above existing solutions have the following problems: In some existing solutions, the heat sink is connected to the lead-out part of the static spring piece, which affects the lead-out function of the static spring piece. Alternatively, in other existing solutions, the heat sink is arranged on the bent lead-out side of the lead-out end of the static spring piece, which affects the overall layout of the product. Limited by the heating and heat dissipation capacity of the contacts, the load current of the existing solutions usually does not exceed 300A. Utility Model Content

[0005] 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 with fewer connection points of lead pins and better heat dissipation capability.

[0006] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0007] According to one aspect of the present disclosure, a relay is provided, which includes a housing and a functional module; the functional module is arranged on the housing, and includes a pusher, a contact assembly and a magnetic circuit unit; the pusher is suitable for moving relative to the housing along a first direction; the contact assembly includes a movable spring assembly and a static spring piece; the end of the movable spring assembly in a second direction perpendicular to the first direction is a contact end, and the other part of the movable spring assembly is relatively fixed to the housing, and the contact end moves with the pusher; the static spring piece is arranged corresponding to the contact end; the static spring piece is located on one side of the movable spring assembly in the first direction, and a part of the static spring piece extends out of the housing along a lead-out direction to form a lead-out end, and the lead-out direction is parallel to a reference plane where the static spring piece is located and perpendicular to the first direction; a heat sink is arranged on the side of the static spring piece facing away from the movable spring assembly, and the heat sink extends out of the housing along the first direction; the magnetic circuit unit includes a coil assembly, which is suitable for exciting and de-exciting the coil assembly to drive the pusher to move along the first direction, so as to drive the movable contact provided at the contact end and the static contact provided at the static spring piece to close or open.

[0008] According to one embodiment of the present disclosure, along the lead-out direction, a distance between a connection point between the heat sink and the static spring sheet and the static contact is smaller than a distance between the lead-out end and the static contact.

[0009] According to one of the embodiments of the present disclosure, along the lead-out direction, the connection between the heat sink and the static spring sheet is located between the lead-out end and the static contact.

[0010] According to one of the embodiments of the present disclosure, the heat sink has a heat exchange plane, and the entire surface of the heat exchange plane is attached to a side of the static spring sheet facing away from the dynamic spring assembly.

[0011] According to one embodiment of the present disclosure, the heat sink is a heat sink fin group.

[0012] According to one of the embodiments of the present disclosure, the housing is provided with a window for the heat sink to extend out; an insulating structure is provided between the window and the heat sink.

[0013] According to one embodiment of the present disclosure, the functional module includes two pushing members and two magnetic circuit units; the contact assembly includes two static spring sheets; the two ends of the movable spring assembly in the second direction are respectively the contact ends, and the middle part thereof in the second direction is relatively fixed to the outer shell; the two contact ends respectively follow the two pushing members, and the two static spring sheets are respectively arranged corresponding to the two contact ends; the two magnetic circuit units are respectively suitable for driving the two pushing members.

[0014] According to one of the embodiments of the present disclosure, wherein: the lead-out direction is the second direction, and the lead-out ends of the two static spring pieces belonging to one contact component extend in opposite directions; or, the lead-out direction is a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and the lead-out ends of the two static spring pieces belonging to one contact component extend in the same direction; or, the lead-out direction is a third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction, and the lead-out ends of the two static spring pieces belonging to one contact component extend in opposite directions.

[0015] According to one embodiment of the present disclosure, the contact assembly includes at least two dynamic spring assemblies arranged along a third direction, wherein the third direction is perpendicular to the first direction and perpendicular to the second direction, and the static spring sheet simultaneously corresponds to the ends of at least two dynamic spring assemblies on the same side of the second direction.

[0016] According to one of the embodiments of the present disclosure, the relay includes at least two functional modules.

[0017] According to one embodiment of the present disclosure, the shell includes a base body, at least two first shells and at least two second shells; the base body has at least two first cavities separated from each other, and the first cavity penetrates along the first direction; the first shell and the second shell are respectively connected to the two sides of the base body in the first direction, at least two first shells correspond to at least two first cavities respectively, and at least two second shells correspond to at least two first cavities respectively; the first cavities, the first shells and the second shells corresponding to each other jointly form a accommodating space, so that the shell has at least two accommodating spaces; at least two accommodating spaces are separated from each other, and are respectively used to accommodate at least two functional modules.

[0018] It can be seen from the above technical solution that the advantages and positive effects of the relay proposed in the present disclosure are:

[0019] The relay proposed in the present disclosure includes a shell and a functional module arranged on the shell; the functional module includes a pusher, a contact assembly and a magnetic circuit unit; the pusher is suitable for moving relative to the shell along a first direction; the contact assembly includes a moving spring assembly and a static spring piece; the moving spring assembly is partially fixed relative to the shell, and the contact end moves with the pusher; the static spring piece is located on one side of the moving spring assembly in the first direction, and a part of it extends out of the shell along a lead-out direction to form a lead-out end, and the lead-out direction is parallel to a reference plane where the static spring piece is located and perpendicular to the first direction; a heat sink is arranged on the side of the static spring piece facing away from the moving spring assembly, and the heat sink extends out of the shell along the first direction; the magnetic circuit unit includes a coil assembly, which is suitable for exciting and de-exciting the coil assembly to drive the pusher to move along the first direction, so as to drive the moving contact arranged at the contact end and the static contact arranged at the static spring piece to close or open. Through the above design, since the lead-out direction of the lead-out end in the present disclosure is parallel to the reference plane where the static spring piece is located, and the heat sink is arranged on the side of the static spring piece facing away from the dynamic spring assembly, that is, the side of the static spring piece in the first direction, the present disclosure can arrange the static spring piece at the bottom of the relay (that is, one end in the first direction), so that the arrangement of the heat sink on the bottom surface of the static spring piece (that is, the surface of the side facing away from the dynamic spring assembly) is more convenient. At the same time, combined with the design of the horizontal lead-out of the lead-out end of the static spring piece, it can avoid the problem of interference with the heat sink structure when the static spring piece is longitudinally led out (for example, bent and led out along the first direction). In this way, the present disclosure can make the heat sink directly and more fully connected to the static spring piece, thereby further improving the heat dissipation effect of the static spring piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Various objects, features and advantages of the present disclosure will become more apparent by considering the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always refer to the same or similar parts. Among them:

[0021] Figure 1 is a schematic diagram of a three-dimensional structure of a relay according to an exemplary embodiment;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the relay from another perspective;

[0023] Figure 3 It is a three-dimensional exploded schematic diagram of the relay;

[0024] Figure 4 It is a plan view of a functional module;

[0025] Figure 5 is along Figure 4 The cross-sectional view made by the straight line AA in;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the combined structure of the pusher and the dynamic spring assembly;

[0027] Figure 7 It is a three-dimensional exploded schematic diagram of the combined structure of the pusher and the dynamic spring assembly;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the contact component;

[0029] Fig. 9 is a three-dimensional structural schematic diagram of the dynamic spring assembly from another perspective;

[0030] Fig.10 It is a three-dimensional exploded schematic diagram of the dynamic spring assembly;

[0031] Fig.11 It is a plan view of a magnetic circuit unit;

[0032] Fig.12 is along Fig.11 The cross-sectional view made by the straight line BB in;

[0033] Fig.13 and Fig.14 They are schematic diagrams of the three-dimensional structure of the static reed at two different viewing angles;

[0034] Fig.15 It is a three-dimensional exploded schematic diagram of the shell;

[0035] Fig.16 It is a three-dimensional structural schematic diagram of the combined structure of the seat body and the dynamic spring assembly.

[0036] The following are the descriptions of the reference numerals:

[0037] 100. Shell; 2214. Press plate;

[0038] 110. Seat body; 2215. Connecting piece;

[0039] 111. First cavity; 2221. Static reed;

[0040] 112. first partition; 22211. lead-out end;

[0041] 1121. third through hole; 2222. heat sink;

[0042] 1122. Fixed part; 230. Magnetic circuit unit;

[0043] 120. First housing; 231. Coil assembly;

[0044] 130. Second housing; 2311. Coil;

[0045] 131. Window; 2312. Coil frame;

[0046] 200. Functional module; 23121. First through hole;

[0047] 211. Connecting rod; 232. Core assembly;

[0048] 212. Push block; 2321. Static iron core;

[0049] 213. Cover plate; 23211. Second through hole;

[0050] 214.Connection structure; 2322.Moving iron core;

[0051] 220. Contact assembly; 2323. Reset elastic member;

[0052] 221. Dynamic spring assembly; 2331. Yoke iron plate;

[0053] 2211. Moving reed; 2332. U-shaped yoke;

[0054] 22111. End head; D1. Spacing;

[0055] 22112. Avoidance hole; D2. Thickness;

[0056] 2212. Flexible connector; X. First direction;

[0057] 2213. Moving contact; Y. Second direction;

[0058] Z. Third direction. DETAILED DESCRIPTION

[0059] 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 changes in different embodiments without departing from the scope of the present disclosure, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present disclosure.

[0060] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure and in which different exemplary structures, systems and steps that can implement multiple aspects of the present disclosure are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can 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 only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present disclosure.

[0061] See also Figure 1 , which representatively shows a three-dimensional structural schematic diagram of the relay proposed in the present disclosure. In this exemplary embodiment, the relay proposed in the present disclosure is described by taking the relay applied to the three-phase photovoltaic inverter as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present disclosure to other types of relays, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the relay proposed in the present disclosure.

[0062] like Figure 1 As shown, in one embodiment of the present disclosure, the relay provided by the present disclosure includes a housing 100 and a functional module 200. In this embodiment, three functional modules 200 are used as an example. In some embodiments, the relay may also include one, two, four or more functional modules 200. Figures 2 to 16 , Figure 2 A three-dimensional structural diagram of a relay from another perspective is representatively shown in FIG. Figure 3 A three-dimensional exploded schematic diagram of a relay is representatively shown in FIG. Figure 4 A schematic plan view of a functional module 200 is representatively shown in FIG. Figure 5 The representative diagram shows the Figure 4 The cross-sectional view made by the straight line AA in; Figure 6 A three-dimensional structural diagram of the combined structure of the pusher and the dynamic spring assembly 221 is representatively shown in FIG. Figure 7 A three-dimensional exploded schematic diagram of the combined structure of the pusher and the dynamic spring assembly 221 is representatively shown in FIG. Figure 8 A three-dimensional structural schematic diagram of the contact assembly 220 is representatively shown in FIG. Fig. 9 , a three-dimensional structural schematic diagram of the dynamic spring assembly 221 in another viewing angle is representatively shown; Fig.10 A three-dimensional exploded schematic diagram of the dynamic spring assembly 221 is representatively shown; Fig.11 A schematic plan view of a magnetic circuit unit 230 is representatively shown in FIG. Fig.12 The representative diagram shows the Fig.11 The cross-sectional view made by the straight line BB in; Fig.13 and Fig.14 2 and 3 are representative schematic diagrams of the three-dimensional structure of the static spring piece 2221 at two different viewing angles; Fig.15 A perspective exploded schematic diagram of the housing 100 is representatively shown in FIG. Fig.16 The three-dimensional structural diagram of the combined structure of the base body 110 and the dynamic spring assembly 221 is representatively shown in FIG. The structure, connection mode and functional relationship of each main component of the relay proposed in the present disclosure will be described in detail below in conjunction with the above drawings.

[0063] like Figures 2 to 6 , Fig.13 and Fig.14 As shown, in one embodiment of the present disclosure, the functional module 200 is disposed on the housing 100. The functional module 200 includes a pusher, a contact assembly 220 and a magnetic circuit unit 230. The pusher is suitable for moving relative to the housing 100 along a first direction X. The contact assembly 220 includes a movable spring assembly 221 and a static spring piece 2221. The end of the movable spring assembly 221 in a second direction Y perpendicular to the first direction X is a contact end, and the other part of the movable spring assembly 221 is relatively fixed to the housing 100, and the contact end moves with the pusher. The static spring piece 2221 is located on one side of the movable spring assembly 221 in the first direction X, and the static spring piece 2221 is arranged corresponding to the contact end. A part of the static spring piece 2221 extends out of the housing 100 (for example, the second housing 130) along a lead-out direction to form a lead-out end 22211, and the lead-out direction is parallel to a reference plane where the static spring piece 2221 is located and perpendicular to the first direction X. A heat sink 2222 is provided on one side of the static spring piece 2221 facing away from the dynamic spring assembly 221, and the heat sink 2222 extends out of the housing 100 along the first direction X. The magnetic circuit unit 230 includes a coil assembly 231, and the magnetic circuit unit 230 is suitable for exciting and de-exciting the coil assembly 231 to drive the pusher to move along the first direction X, so as to drive the dynamic contact 2213 provided at the contact end and the static contact provided at the static spring piece 2221 to close or open.

[0064] Through the above design, since the lead-out direction of the lead-out end 22211 in the present disclosure is parallel to the reference plane where the static reed piece 2221 is located, and the heat sink 2222 is arranged on the side of the static reed piece 2221 that is away from the dynamic spring assembly 221, that is, the side of the static reed piece 2221 in the first direction X, the present disclosure can arrange the static reed piece 2221 at the bottom of the relay (that is, at one end in the first direction X), so that the arrangement of the heat sink 2222 on the bottom surface of the static reed piece 2221 (that is, the side surface away from the dynamic spring assembly 221) is more convenient, and at the same time, combined with the design of the horizontal lead-out of the lead-out end 22211 of the static reed piece 2221, it is possible to avoid the problem of interference with the heat sink structure when the static reed piece is longitudinally led out (for example, bent and led out along the first direction X). In this way, the present disclosure can make the heat sink 2222 directly and more fully connected to the static reed piece 2221, thereby further improving the heat dissipation effect of the static reed piece 2221.

[0065] In one embodiment of the present disclosure, along the lead-out direction, the distance between the connection between the heat sink 2222 and the static spring piece 2221 and the static contact point can be smaller than the distance between the lead-out end 22211 and the static contact point. Through the above design, since the heat of the static spring piece 2221 is mainly concentrated at the contact point, that is, the static contact point, the present disclosure can make the heat of the static spring piece 2221 transfer to the heat sink 2222 faster and more fully, thereby further improving the heat dissipation effect of the static spring piece 2221.

[0066] like Fig.13 and Fig.14 As shown, in one embodiment of the present disclosure, along the lead-out direction of the lead-out terminal 22211, the connection between the heat sink 2222 and the static spring piece 2221 can be located between the lead-out terminal 22211 and the static contact. Through the above design, the present disclosure can make the heat sink 2222 closer to the static contact than the lead-out terminal 22211, improve the heat dissipation effect of the static spring piece 2221, and prevent the heat sink 2222 from affecting the arrangement of the lead-out terminal 22211 and the static contact.

[0067] like Fig.13 and Fig.14 As shown, based on the design that the static spring piece 2221 is provided with a heat sink 2222, in one embodiment of the present disclosure, the heat sink 2222 has a heat exchange plane, and the heat exchange plane is entirely attached to the side of the static spring piece 2221 facing away from the dynamic spring assembly 221. Through the above design, the present disclosure can increase the heat exchange area between the heat sink 2222 and the static spring piece 2221, and further improve the heat dissipation effect of the static spring piece 2221.

[0068] like Fig.13 and Fig.14As shown, based on the design that the static spring piece 2221 is provided with a heat sink 2222, in one embodiment of the present disclosure, the heat sink 2222 may be a heat sink fin group. In some embodiments, the heat sink 2222 may also adopt other heat dissipation structures.

[0069] like Figure 2 , Fig.15 and Fig.16 As shown, based on the design that the static reed 2221 is provided with a heat sink 2222, in one embodiment of the present disclosure, the housing 100 may be provided with a window 131, and the window 131 may be specifically provided in the second shell 130 of the housing 100, and the window 131 can allow the heat sink 2222 to extend. On this basis, an insulating structure may be provided between the window 131 and the heat sink 2222. Through the above design, the present disclosure can ensure the insulation effect of the housing 100 at the window 131, and improve the insulation performance of the all-in-one relay.

[0070] like Figure 3 , Figure 4 , Figures 6 to 10 As shown, in one embodiment of the present disclosure, the functional module 200 may include two pushers and two magnetic circuit units 230. Specifically, the contact assembly 220 may include two static spring pieces 2221. The two ends of the movable spring assembly 221 in the second direction Y are respectively the above-mentioned contact ends, and the middle part of the movable spring assembly 221 in the second direction Y is relatively fixed to the housing 100. The two contact ends follow the two pushers respectively, and the two static spring pieces 2221 are arranged corresponding to the two contact ends respectively. On this basis, the two magnetic circuit units 230 are respectively suitable for driving the two pushers. Through the above design, the functional module 200 of the present disclosure adopts a design including two pushers and two magnetic circuit units 230, which is equivalent to forming two independently controllable relay units. On this basis, the contact assembly 220 of each functional module 200 disclosed in the present invention includes two static reeds 2221, which is equivalent to the above-mentioned relay units only using one static reed 2221 for lead-out. Accordingly, the number of connection points of the lead-out terminal 22211 can be reduced (taking three-phase products as an example, the number of connection points is reduced from 12 in the existing solution to 6 in the present invention), thereby reducing the increase in process and material costs caused by heat dissipation treatment of the connection points, while further reducing space occupancy and reducing welding risks, thereby meeting applications with larger load currents.

[0071] like Figure 2As shown, based on the design that a functional module 200 includes two independently controllable relay units, in one embodiment of the present disclosure, the lead-out direction of the lead-out terminal 22211 can be the second direction Y, and the lead-out terminals 22211 of two static spring pieces 2221 belonging to one contact component 220 extend in opposite directions. In some embodiments, according to different application requirements, the lead-out direction of the lead-out terminal 22211 can also be a third direction Z, which is perpendicular to the first direction X and perpendicular to the second direction Y, and the lead-out terminals 22211 of two static spring pieces 2221 belonging to one contact component 220 extend in the same direction, or the lead-out terminals 22211 of two static spring pieces 2221 belonging to one contact component 220 extend in opposite directions, which are not limited to this embodiment.

[0072] like Figures 1 to 3 As shown, in one embodiment of the present disclosure, taking the relay including at least two functional modules 200 as an example, these functional modules 200 are jointly arranged in the housing 100, realizing the integrated design of at least two functional modules 200. In addition, since each functional module 200 adopts a design including two pushers and two magnetic circuit units 230, an all-in-one relay in the form of "N×2" integration can be realized, where "N" represents the number of functional modules 200, and "2" represents that each functional module 200 includes two relay units that can be independently controlled.

[0073] like Figure 4 and Figure 5 As shown, in one embodiment of the present disclosure, the magnetic circuit unit 230 may be located on a side of the movable spring assembly 221 facing away from the static spring piece 2221 in the first direction X.

[0074] like Figure 5 and Fig.12 As shown, in one embodiment of the present disclosure, the coil assembly 231 is provided with a first through hole 23121 penetrating along the first direction X, and the magnetic circuit unit 230 further includes an iron core assembly 232, and the iron core assembly 232 includes a static iron core 2321 and a moving iron core 2322 arranged along the first direction X, and the pusher is connected to the moving iron core 2322. The static iron core 2321 is provided in the first through hole 23121, and the static iron core 2321 is relatively fixed to the coil assembly 231. The moving iron core 2322 is suitable for moving relative to the static iron core 2321 along the first direction X when the coil assembly 231 is energized, so as to drive the pusher to move along the first direction X. Through the above design, the magnetic circuit unit 230 of the present disclosure adopts the iron core assembly 232 of the automatic structure, which can provide a greater driving force. Based on this, on the basis of meeting the driving force requirements of the contact structure, compared with the existing structure, the present disclosure can reduce the volume of the magnetic circuit unit 230 at the same and lower level, which is conducive to reducing the board area of ​​the product.

[0075] like Figure 5 and Fig.12 As shown, based on the design that the magnetic circuit unit 230 includes a core assembly 232 and the core assembly 232 includes a moving core 2322 and a static core 2321, in one embodiment of the present disclosure, the moving core 2322 can be located on the side of the static core 2321 facing away from the contact assembly 220. The static core 2321 is provided with a second through hole 23211 extending along the first direction X, and the second through hole 23211 can allow the pusher to pass through. Through the above design, the present disclosure can further reduce the volume of the magnetic circuit unit 230 and further reduce the board area of ​​the product. In some embodiments, the moving core 2322 can also be located on the side of the static core 2321 facing the contact assembly 220, which is not limited to this embodiment.

[0076] like Figure 5 As shown, based on the design that the magnetic circuit unit 230 includes an iron core assembly 232 and the iron core assembly 232 includes a moving iron core 2322 and a static iron core 2321, in one embodiment of the present disclosure, the iron core assembly 232 may further include a reset elastic member 2323. The reset elastic member 2323 is connected between the static iron core 2321 and the moving iron core 2322, and the reset elastic member 2323 is suitable for resetting the moving iron core 2322 when the coil assembly 231 is powered off. Through the above design, the present disclosure can use the reset elastic member 2323 to provide a reaction force between the moving iron core 2322 and the static iron core 2321, so that the moving iron core 2322 and the static iron core 2321 are in a released state under the action of the reset elastic member 2323.

[0077] Furthermore, the reset elastic member 2323 may be a coil spring, and the coil spring is wound around the outer circumference of the connecting rod 211, and the two ends of the coil spring are respectively connected to the moving iron core 2322 and the static iron core 2321. In some embodiments, the reset elastic member 2323 may also adopt other elastic structures, such as but not limited to springs or leaf springs, etc., and is not limited to this embodiment.

[0078] like Figure 4 , Figure 5 , Fig.11 and Fig.12 As shown, in one embodiment of the present disclosure, the magnetic circuit unit 230 includes a yoke assembly, the yoke assembly includes a yoke plate 2331 and a U-shaped yoke 2332, the U-shaped yoke 2332 is connected to the side of the yoke plate 2331 facing away from the contact assembly 220, and the U-shaped yoke 2332 and the yoke plate 2331 together form a receiving space for the coil assembly 231. In addition, the coil assembly 231 includes a coil 2311 and a coil frame 2312, the coil frame 2312 is used for winding and arranging the coil 2311, and the first through hole 23121 is provided in the coil frame 2312.

[0079] like Figures 4 to 10As shown, in one embodiment of the present disclosure, the dynamic spring assembly 221 may include a dynamic spring piece 2211 and a soft connector 2212. The middle portion of the soft connector 2212 in the second direction Y and the middle portion of the dynamic spring piece 2211 in the second direction Y are relatively fixed to the housing 100, and the two ends of the soft connector 2212 in the second direction Y are connected to the two ends of the dynamic spring piece 2211 in the second direction Y via the dynamic contact 2213, and together form the above-mentioned contact end. Accordingly, the present disclosure can utilize the conductive function mainly undertaken by the soft connector 2212, and utilize the dynamic spring piece 2211 to mainly provide the elastic recovery function. Of course, the dynamic spring piece 2211 may also have a certain conductive function, so as to further assist the current carrying capacity of the dynamic spring assembly 221. Through the above design, the present disclosure can use the soft connector 2212 to provide conductivity, and use the movable spring piece 2211 to achieve the separation and reset of the contacts. For example, when the pusher pushes the movable spring assembly 221 to deform and the movable contact 2213 contacts the static contact, the movable spring piece 2211 is deformed. When the pusher is reset, the force applied to the movable spring assembly 221 is reduced or disappears, and the reset rebound of the movable spring piece 2211 causes the movable spring assembly 221 to be reset as a whole. In addition, when the magnetic circuit unit 230 includes an iron core assembly 232 having a reset elastic member 2323, the present disclosure can also use the reset elastic member 2323 to link the real contact to disconnect.

[0080] Based on the design that the dynamic spring assembly 221 includes a dynamic spring piece 2211 and a flexible connector 2212 , in one embodiment of the present disclosure, the dynamic spring piece 2211 may be made of stainless steel.

[0081] like Figures 4 to 10 As shown, based on the design that the dynamic spring assembly 221 includes a dynamic spring piece 2211 and a flexible connector 2212, in one embodiment of the present disclosure, the flexible connector 2212 can be located on the side of the dynamic spring piece 2211 facing the static spring piece 2221. In some embodiments, the flexible connector 2212 can also be located on the side of the dynamic spring piece 2211 facing away from the static spring piece 2221, which is not limited to this embodiment.

[0082] like Figures 4 to 10 As shown, based on the design that the dynamic spring assembly 221 includes a dynamic spring piece 2211 and a flexible connector 2212, in one embodiment of the present disclosure, the length of the flexible connector 2212 along the second direction Y after being unfolded can be greater than the length of the dynamic spring piece 2211 along the second direction Y, so that a portion of the flexible connector 2212 forms a warped shape relative to the dynamic spring piece 2211 toward the static spring piece 2221. In some embodiments, the length of the flexible connector 2212 along the second direction Y after being unfolded can also be equal to or even slightly less than the length of the dynamic spring piece 2211 along the second direction Y, and it is only necessary to ensure that the flexible connector 2212 can produce reasonable deformation during the process of the dynamic spring piece 2211 being pressed down and deformed, and this is not limited to this embodiment.

[0083] Based on the design that the dynamic spring assembly 221 includes the dynamic spring piece 2211 and the soft connector 2212, in one embodiment of the present disclosure, the soft connector 2212 may be formed by stacking multiple layers of copper foil along the first direction X. Through the above design, the present disclosure can utilize the soft connector 2212 formed by stacking multiple layers of copper foil to provide conductivity, thereby improving the current carrying capacity of the relay.

[0084] like Figures 8 to 10 As shown, based on the design that the dynamic spring assembly 221 includes a dynamic spring piece 2211 and a soft connector 2212, in one embodiment of the present disclosure, the dynamic contact 2213 connects the dynamic spring piece 2211 and the soft connector 2212 in a riveted form. For example, the dynamic contact 2213 can adopt the structural form of a rivet, that is, the present disclosure can use the dynamic contact 2213 as a rivet to directly rivet the dynamic spring piece 2211 and the soft connector 2212. Through the above design, the present disclosure can ensure the fixed connection between the dynamic contact 2213, the dynamic spring piece 2211 and the soft connector 2212, and at the same time it is conducive to reducing the number of parts and reducing the complexity of the structure. In some embodiments, the dynamic contact 2213 can also be riveted to the dynamic spring piece 2211 and the soft connector 2212 through additional rivets, or the dynamic contact 2213 and the rivet and the soft connector 2212 can also adopt other connection forms and are not limited to this embodiment.

[0085] like Figures 3 to 7As shown, based on the design that the dynamic spring assembly 221 includes a dynamic spring piece 2211 and a soft connector 2212, in one embodiment of the present disclosure, the pusher may include a connecting rod 211, a push block 212 and a cover plate 213. The connecting rod 211 extends along the first direction X, and the connecting rod 211 is suitable for cooperating with the magnetic circuit unit 230. The push block 212 is arranged at one end of the connecting rod 211 facing away from the magnetic circuit unit 230, and the push block 212 is located on the side of the dynamic spring piece 2211 facing the magnetic circuit unit 230. The cover plate 213 is connected to the push block 212 via a connecting structure 214, and the cover plate 213 is located on the side of the soft connector 2212 facing away from the magnetic circuit unit 230. The connecting structure 214 is evasive and matched with the dynamic spring piece 2211 and the soft connector 2212. The pusher is suitable for pushing and pulling the dynamic spring assembly 221 via the push block 212 and the cover plate 213. On this basis, along the first direction X, the distance D1 between the push block 212 and the cover plate 213 can be greater than or equal to the thickness D2 of the movable spring assembly 221 at the warping part of the soft connector 2212. Through the above design, during the contact process between the movable contact 2213 and the static contact, the magnetic circuit unit 230 drives the pusher to move toward the static spring piece 2221 along the first direction X, and the push block 212 pushes against the side of the movable spring piece 2211 facing the magnetic circuit unit 230 (i.e., the side facing away from the soft connector 2212), thereby pushing the movable spring assembly 221 as a whole to move toward the static spring piece 2221, and realizing the contact between the movable contact 2213 and the static contact. During the disconnection process between the movable contact 2213 and the static contact, the excitation of the coil 2311 of the magnetic circuit unit 230 disappears, and during the reset process of the pusher, the cover plate 213 pushes against the side of the warping part of the soft connector 2212 facing the static spring piece 2221 (i.e., the side facing away from the movable spring piece 2211). Accordingly, the present invention can utilize the pushing block 212 and the cover plate 213 to respectively realize the pushing and pulling of the dynamic spring assembly 221, while ensuring that the distance D1 between the pushing block 212 and the cover plate 213 is not less than the thickness D2 of the dynamic spring assembly 221 at the warping point of the soft connector 2212, thereby avoiding affecting the deformation and conductive function of the dynamic spring sheet 2211 and the soft connector 2212 in different states.

[0086] like Figures 5 to 7As shown, based on the design that the dynamic spring assembly 221 includes a dynamic spring piece 2211 and a soft connector 2212, in one embodiment of the present disclosure, the two ends of the dynamic spring piece 2211 in the second direction Y are respectively bifurcated structures, so that the end of the dynamic spring piece 2211 in the second direction Y is formed with at least two end portions 22111 arranged at intervals along a third direction Z, such as the two end portions 22111 shown in the drawings, and the third direction Z is perpendicular to the first direction X and perpendicular to the second direction Y, and each end portion 22111 is connected to a dynamic contact 2213. The dynamic spring assembly 221 includes at least two soft connectors 2212 arranged at intervals along the third direction Z, such as the two soft connectors 2212 shown in the drawings, and the at least two soft connectors 2212 are arranged in a one-to-one correspondence with the at least two end portions 22111. On this basis, the movable spring piece 2211 can be provided with an avoidance hole 22112, and the position of the avoidance hole 22112 is arranged corresponding to the position of the interval between two adjacent soft connectors 2212, accordingly, the connection structure 214 passes through the avoidance hole 22112 and the interval between two adjacent soft connectors 2212, thereby connecting the push block 212 and the cover plate 213. Through the above design, the present disclosure can achieve the avoidance cooperation between the connection structure 214 and the movable spring assembly 221. At the same time, since the movable spring piece 2211 has at least two end portions 22111 at the end of the second direction Y, the contact end of the movable spring assembly 221 has at least two movable contacts 2213, accordingly, the multi-way parallel connection of the movable spring assembly 221 can be realized, thereby improving the current carrying capacity of the product, and can ensure the balanced design of multiple groups of contacts of the contact assembly, and make the contact structure have the advantage of anti-adhesion.

[0087] It should be noted that in some embodiments, no matter what structure the movable spring piece 2211 adopts, corresponding avoidance holes can be opened in the movable spring piece 2211 and the flexible connector 2212 respectively, and accordingly, the connecting structure 214 can pass through the avoidance hole of the movable spring piece 2211 and the avoidance hole of the flexible connector 2212.

[0088] like Figure 6 and Figure 7 As shown, in one embodiment of the present disclosure, the contact assembly 220 may include at least two spring assemblies 221 arranged at intervals along the third direction Z, such as the two spring assemblies 221 shown in the figure. On this basis, the interval between two adjacent spring assemblies 221 can allow the connection structure 214 to pass through.

[0089] like Figure 6 and Figure 7As shown, based on the design that the contact assembly 220 includes two dynamic spring assemblies 221, in one embodiment of the present disclosure, the connection structure 214 can pass through the dynamic spring assembly 221 from at least three positions. Specifically, for each dynamic spring assembly 221, its dynamic spring piece 2211 can be provided with an avoidance hole 22112, and the gap between two soft connectors 2212 belonging to the same dynamic spring assembly 221 corresponds to the avoidance hole 22112. Accordingly, the positions of the respective avoidance holes 22112 of the two dynamic spring assemblies 221 are respectively two of the positions where the connection structure 214 passes through the dynamic spring assembly 221. Furthermore, there is a gap between the two dynamic spring assemblies 221, and the gap is the third position where the connection structure 214 passes through the two dynamic spring assemblies 221. Specifically, the connection structure 214 passes through the gap between the two dynamic spring pieces 2211, and the connection structure 214 also passes through the gap between two adjacent soft connectors 2212 belonging to different dynamic spring assemblies 221. Through the above structural design, the present disclosure can further ensure the avoidance cooperation between the connection structure 214 and the dynamic spring assembly 221 while improving the current carrying capacity of the product. In some embodiments, when the contact assembly 220 includes at least two dynamic spring assemblies 221 spaced apart along the third direction Z, on the basis that a part of the connection structure 214 passes through the gap between two adjacent sliding assemblies, the dynamic spring piece 2211 and the soft connector 2212 can also be respectively provided with avoidance holes at corresponding positions to allow another part of the connection structure 214 to pass through, and the above embodiments are not limited thereto.

[0090] like Figures 5 to 7 As shown, based on the design that the push block 212 and the cover plate 213 are connected via a connecting structure 214, in one embodiment of the present disclosure, the connecting structure 214 may include a connecting piece. One end of the connecting piece is connected to the push block 212, and the other end of the connecting piece has at least one connecting arm protruding toward the cover plate 213, and the connecting piece is connected to the cover plate 213 via the connecting arm. The connecting arm and the dynamic spring assembly 221 are in avoidance cooperation, that is, the connecting arm and the dynamic spring piece 2211 and the soft connector 2212 are in avoidance cooperation. On this basis, taking the design that the above-mentioned connecting structure 214 passes through the dynamic spring assembly 221 from three positions as an example, the connecting piece shown in the figure has three connecting arms, and the three connecting arms are arranged at intervals along the third direction Z.

[0091] like Figures 6 to 10As shown, in one embodiment of the present disclosure, for any functional module 200, its contact assembly 220 may include at least two dynamic spring assemblies 221 arranged along a third direction Z, and the third direction Z is perpendicular to the first direction X and perpendicular to the second direction Y. On this basis, the static spring piece 2221 corresponds to the ends of at least two dynamic spring assemblies 221 on the same side in the second direction Y. Through the above design, the present disclosure can realize the design of at least two parallel connections of the contact assembly 220, thereby improving the current carrying capacity of the product, and ensuring the balanced design of multiple groups of contacts of the contact assembly, and making the contact structure have the advantage of anti-adhesion. For example, the contact assembly 220 in this embodiment includes two dynamic spring assemblies 221, and the end of the dynamic spring piece 2211 of each dynamic spring assembly 221 along the second direction Y adopts a bifurcated design and has two end portions 22111, and each end portion 22111 is provided with a dynamic contact, which is equivalent to each contact end of the contact assembly 220 having four dynamic contacts, that is, each static spring piece 2221 has four static contacts, thereby realizing a 4-way parallel design. In some embodiments, when the contact assembly 220 includes two dynamic spring assemblies 221, the two ends of the dynamic spring piece 2211 of each dynamic spring assembly 221 along the second direction Y may also have one, three or more end portions 22111, thereby realizing a 2-way or 6-way or more parallel design. Alternatively, when the two ends of the movable spring piece 2211 of each movable spring assembly 221 along the second direction Y also have two terminal parts 22111, the contact assembly 220 may also include one, three or more movable spring assemblies 221, thereby realizing a parallel design of 2 or more than 6 paths. Furthermore, no matter how many movable spring assemblies 221 are included in the contact assembly 220, the two ends of the movable spring piece 2211 of each movable spring assembly 221 along the second direction Y may also have two terminal parts 22111, which are not limited to the above-mentioned embodiments. In other words, in various possible embodiments consistent with the design concept of the present disclosure, the contact end of the movable spring assembly 221 may have at least two terminal parts 22111 arranged along the third direction Z, and each terminal part 22111 is connected to a movable contact 2213.

[0092] like Figures 6 to 10 As shown, still taking the design that the dynamic spring assembly 221 includes a dynamic spring piece 2211 and a soft connector 2212 as an example, and when the end of the dynamic spring piece 2211 in the second direction Y is a bifurcated structure and is formed with at least two end portions 22111, the dynamic spring assembly 221 may include at least two soft connectors 2212 arranged at intervals along the third direction Z, and the at least two soft connectors 2212 are arranged in a one-to-one correspondence with the at least two end portions 22111. In other words, for one dynamic spring piece 2211, the number of soft connectors 2212 arranged corresponding to it is at least two, and the number of soft connectors 2212 is specifically equal to the number of end portions 22111 at one end of the dynamic spring piece 2211 in the second direction Y.

[0093] like Figures 8 to 10 As shown, in one embodiment of the present disclosure, the movable spring assembly 221 is provided with a pressing plate 2214 on the side facing the static spring piece 2221. The pressing plate 2214 is located in the middle of the movable spring assembly 221 in the second direction Y. The pressing plate 2214 is relatively fixed to the housing 100 via a connecting piece 2215 passing through the movable spring assembly 221. The connecting piece 2215 may be, for example, but not limited to, a rivet. The pressing plate 2214 is suitable for pressing against the surface of the side of the movable spring assembly 221 facing the static spring piece 2221. Through the above design, the present disclosure can utilize the pressing plate 2214 to participate in the fixing of the movable spring assembly 221 and the housing 100, increase the connection contact area, avoid structural damage to the movable spring assembly 221 caused by the connection of the connecting piece 2215, and further ensure the stability and reliability of the product.

[0094] Based on the design that the dynamic spring assembly 221 is provided with a pressure plate 2214, in one embodiment of the present disclosure, the pressure plate 2214 can be formed with a common lead-out terminal detection pin, thereby meeting the customer's demand for the lead-out of the detection signal.

[0095] Based on the design that the pressing plate 2214 is formed with a common lead-out terminal detection pin, in one embodiment of the present disclosure, the pressing plate 2214 may include a copper plate and an iron plate stacked along the first direction X. The copper plate is formed with the above-mentioned common lead-out terminal detection pin, and the copper plate is located on the side of the iron plate facing the dynamic spring assembly 221. Through the above design, the present disclosure can use the copper plate to achieve the conductive function, thereby realizing the arrangement of the common lead-out terminal detection pin, and at the same time use the iron plate to enhance the structural strength of the pressing plate 2214, reduce the amount of copper material, and reduce the material cost. In some embodiments, when the pressing plate 2214 is formed with a common lead-out terminal detection pin, the pressing plate 2214 can also directly use a copper plate, which is not limited to this embodiment.

[0096] like Figures 1 to 3 , Fig.15 and Fig.16As shown, in one embodiment of the present disclosure, taking the relay including three functional modules 200 as an example, the housing 100 may include a base 110, three first shells 120 and three second shells 130. The base 110 has three first cavities 111 separated from each other, and the first cavity 111 runs through along the first direction X. The first shell 120 and the second shell 130 are respectively connected to the two sides of the base 110 in the first direction X, and the three first shells 120 correspond to the three first cavities 111 respectively, and the three second shells 130 correspond to the three first cavities 111 respectively. The first cavities 111, the first shell 120 and the second shell 130 corresponding to each other form a receiving space together, so that the housing 100 has three receiving spaces, which are separated from each other, and the three receiving spaces are respectively used to receive three functional modules 200. It should be noted that this embodiment is described by taking a three-phase product as an example, that is, the relay includes three functional modules 200. In some embodiments, the relay proposed in the present disclosure may also include two, four or more functional modules 200, and the structure of the housing 100 can be adjusted accordingly based on the above design. In other words, in various possible embodiments consistent with the design concept of the present disclosure, the housing 100 includes at least two first housings 120 and at least two second housings 130, the seat 110 has at least two first cavities 111, and the housing 100 has at least two accommodating spaces, which are respectively used to accommodate at least two functional modules 200. Through the above design, the present disclosure can use the housing 100 to achieve the superposition of at least two functional modules 200, and each functional module 200 roughly corresponds to the function of a two-in-one relay, that is, the housing 100 can achieve the superposition of at least two two-in-one relays. Among them, the seat 110 of the housing 100 can be used as a bridge of at least two functional modules 200 to realize the overall structural arrangement, and at the same time, it can ensure the insulation isolation between each functional module 200 and between the two magnetic circuit units 230 inside a single functional module 200.

[0097] like Fig.16As shown, based on the design that the housing 100 includes a base 110, a first shell 120 and a second shell 130, in one embodiment of the present disclosure, the contact assembly 220 can be accommodated in the first cavity 111 of the base 110, for example, three contact assemblies 220 are respectively accommodated in three first cavities 111. For each first shell 120, the first shell 120 can have two second cavities arranged along the second direction Y and separated from each other, and the two magnetic circuit units 230 of the contact assembly 220 are respectively accommodated in the two second cavities. The static spring 2221 partially extends out of the second shell 130 to form a lead-out end 22211. In some embodiments, the two second cavities in the first shell 120 may not be separated, that is, the two second cavities may be a through-going integral chamber, and the two magnetic circuit units 230 may be arranged in the integral chamber at intervals along the second direction Y, which is not limited to this embodiment.

[0098] like Fig.16 As shown, based on the design that the housing 100 includes a seat body 110 and the seat body 110 has a first cavity 111, in one embodiment of the present disclosure, a first partition 112 may be provided in the first cavity 111. The first partition 112 separates the first cavity 111 and the magnetic circuit unit 230 along the first direction X, and the first partition 112 is provided with two third through holes 1121 penetrating along the first direction X, and the two third through holes 1121 are respectively provided for two pushers to pass through. The contact assembly 220 is located on the side of the first partition 112 facing away from the magnetic circuit unit 230. Through the above design, the present disclosure can use the first partition 112 to ensure the insulation isolation between the contact assembly 220 and the magnetic circuit unit 230.

[0099] like Fig.16 As shown, based on the design that the first cavity 111 is provided with the first partition 112, in one embodiment of the present disclosure, the first partition 112 may be provided with a fixing portion 1122 in the middle portion in the second direction Y, and the fixing portion 1122 may be, for example, a protruding structure of the first partition 112 protruding toward the contact assembly 220. On this basis, the middle portion of the dynamic spring assembly 221 in the second direction Y may be fixedly connected to the fixing portion 1122. Through the above design, the present disclosure can utilize the fixing portion 1122 of the first partition 112 to realize the arrangement of the dynamic spring assembly 221, which has a simple structure and is convenient and reliable to arrange.

[0100] Furthermore, based on the design that the first partition 112 is provided with a fixing portion 1122, in one embodiment of the present disclosure, when the dynamic spring assembly 221 is relatively fixed to the housing 100 via the pressure plate 2214 and the connecting member 2215, the pressure plate 2214 can be arranged corresponding to the fixing portion 1122, and the connecting member 2215 can be connected to the pressure plate 2214, the dynamic spring assembly 221 and the fixing portion 1122.

[0101] In one embodiment of the present disclosure, a second partition may be provided in the first shell 120, and the second partition separates two second cavities in the first shell 120. The two second cavities respectively accommodate two magnetic circuit units 230 belonging to the same functional module 200, thereby achieving isolation between the two magnetic circuit units 230.

[0102] like Figure 1 and Figure 2 As shown, in one embodiment of the present disclosure, at least two functional modules 200 may be arranged along a third direction Z, which is perpendicular to the first direction X and perpendicular to the second direction Y. Since most of the structure of the functional module 200 is contained in the housing 100 and is not exposed, when observing the accompanying drawings, the position and arrangement of each functional module 200 can be understood according to the position of each first shell 120 or each second shell 130 of the housing 100. In some embodiments, at least two functional modules 200 may also be arranged along the second direction Y, which is not limited to this embodiment.

[0103] It should be noted that, when at least two functional modules 200 are arranged along the third direction Z, the lead-out direction of the lead-out ends 22211 of the two static spring pieces 2221 of each contact component 220 may be oppositely led out along the second direction Y as shown in the figure. When at least two functional modules 200 are arranged along the second direction Y, the lead-out direction of the lead-out ends 22211 of the static spring pieces 2221 may be adaptively adjusted, for example, the lead-out direction of the lead-out ends 22211 of the two static spring pieces 2221 of each contact component 220 may be changed to oppositely led out or led out in the same direction along the third direction Z, which is not limited to this embodiment.

[0104] In one embodiment of the present disclosure, the relay proposed in the present disclosure may be a three-phase relay, and the three-phase relay includes three functional modules 200 .

[0105] 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 adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the relays shown in the drawings or described in this specification.

[0106] In summary, the relay proposed in the present disclosure includes a housing 100 and a functional module 200 disposed on the housing 100; the functional module 200 includes a pusher, a contact assembly 220 and a magnetic circuit unit 230; the pusher is suitable for moving relative to the housing 100 along a first direction X; the contact assembly 220 includes a moving spring assembly 221 and a static spring piece 2221; the moving spring assembly 221 is partially fixed relative to the housing 100, and the contact end moves with the pusher; the static spring piece 2221 is located on one side of the moving spring assembly 221 in the first direction X, and a part of it extends outward along a lead-out direction. The housing 100 is provided with a lead-out end 22211, the lead-out direction of which is parallel to a reference plane on which the static spring piece 2221 is located and perpendicular to the first direction X; a heat sink 2222 is provided on the side of the static spring piece 2221 facing away from the dynamic spring assembly 221, and the heat sink 2222 extends out of the housing 100 along the first direction X; the magnetic circuit unit 230 includes a coil assembly 231, which is suitable for exciting and de-exciting the coil assembly 231 to drive the pusher to move along the first direction X, so as to drive the moving contact 2213 provided at the contact end and the static contact provided at the static spring piece 2221 to close or open. Through the above design, since the lead-out direction of the lead-out end 22211 in the present disclosure is parallel to the reference plane where the static reed piece 2221 is located, and the heat sink 2222 is arranged on the side of the static reed piece 2221 that is away from the dynamic spring assembly 221, that is, the side of the static reed piece 2221 in the first direction X, the present disclosure can arrange the static reed piece 2221 at the bottom of the relay (that is, at one end in the first direction X), so that the arrangement of the heat sink 2222 on the bottom surface of the static reed piece 2221 (that is, the side surface away from the dynamic spring assembly 221) is more convenient, and at the same time, combined with the design of the horizontal lead-out of the lead-out end 22211 of the static reed piece 2221, it is possible to avoid the problem of interference with the heat sink structure when the static reed piece is longitudinally led out (for example, bent and led out along the first direction X). In this way, the present disclosure can make the heat sink 2222 directly and more fully connected to the static reed piece 2221, thereby further improving the heat dissipation effect of the static reed piece 2221.

[0107] 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 other components and / or steps described herein. Each component and / or each step of an 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", "one" and "above" are used to indicate that there are one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open-ended inclusion and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0108] Although the relay presented in the present disclosure has 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: Including a shell and a functional module; The functional module is arranged on the housing and comprises: A pushing member, adapted to move relative to the housing along a first direction; A contact assembly, comprising a movable spring assembly and a static spring sheet; an end of the movable spring assembly in a second direction perpendicular to the first direction is a contact end, and another part thereof is relatively fixed to the housing, and the contact end moves with the pusher; the static spring sheet is arranged corresponding to the contact end; the static spring sheet is located on one side of the movable spring assembly in the first direction, and a part of the static spring sheet extends out of the housing along a lead-out direction to form a lead-out end, and the lead-out direction is parallel to a reference plane where the static spring sheet is located and perpendicular to the first direction; a heat sink is arranged on a side of the static spring sheet facing away from the movable spring assembly, and the heat sink extends out of the housing along the first direction; and The magnetic circuit unit includes a coil assembly and is suitable for exciting and de-exciting the coil assembly to drive the pusher to move along the first direction, so as to drive the moving contact arranged at the contact end and the static contact arranged at the static spring piece to close or open.

2. The relay according to claim 1, characterized in that: Along the lead-out direction, the distance between the connection point between the heat sink and the static spring sheet and the static contact point is smaller than the distance between the lead-out end and the static contact point.

3. The relay according to claim 2, characterized in that: Along the lead-out direction, the connection between the heat sink and the static spring sheet is located between the lead-out end and the static contact.

4. The relay according to claim 1, characterized in that: The heat sink has a heat exchange plane, and the entire surface of the heat exchange plane is attached to a side of the static spring sheet facing away from the dynamic spring assembly.

5. The relay according to claim 1, characterized in that: The heat sink is a heat sink fin group.

6. The relay according to claim 1, characterized in that: The shell is provided with a window for the heat sink to extend out; an insulating structure is provided between the window and the heat sink.

7. The relay according to any one of claims 1 to 6, characterized in that: The functional module includes two pushing members and two magnetic circuit units; the contact assembly includes two static spring sheets; the two ends of the movable spring assembly in the second direction are respectively the contact ends, and its middle part in the second direction is relatively fixed to the shell; the two contact ends respectively follow the two pushing members, and the two static spring sheets are respectively arranged corresponding to the two contact ends; the two magnetic circuit units are respectively suitable for driving the two pushing members.

8. The relay according to claim 7, characterized in that: The lead-out direction is the second direction, and the lead-out ends of the two static spring pieces belonging to one contact assembly extend in opposite directions; or The lead-out direction is a third direction, the third direction is perpendicular to the first direction and the second direction, and the lead-out ends of the two static spring pieces belonging to one contact assembly extend in the same direction; or The lead-out direction is a third direction, the third direction is perpendicular to the first direction and the second direction, and the lead-out ends of the two static spring pieces belonging to one contact assembly extend in opposite directions.

9. The relay according to any one of claims 1 to 6, characterized in that: The contact assembly includes at least two movable spring assemblies arranged along a third direction, wherein the third direction is perpendicular to the first direction and the second direction, and the static spring sheet simultaneously corresponds to ends of at least two movable spring assemblies on the same side in the second direction.

10. The relay according to any one of claims 1 to 6, characterized in that: The relay includes at least two functional modules.

11. The relay according to claim 10, characterized in that: The housing comprises a base, at least two first shells and at least two second shells; the base has at least two first cavities separated from each other, and the first cavity penetrates along the first direction; the first shell and the second shell are respectively connected to two sides of the base in the first direction, at least two first shells correspond to at least two first cavities respectively, and at least two second shells correspond to at least two first cavities respectively; The first cavity, the first shell and the second shell corresponding to each other jointly form a receiving space, so that the housing has at least two receiving spaces; At least two of the accommodating spaces are separated from each other and are respectively used to accommodate at least two of the functional modules.

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