Relay

Abstract

The present disclosure provides a relay, comprising a housing, a magnetic circuit assembly and a contact assembly. The magnetic circuit assembly is arranged in the housing. The contact assembly comprises a movable contact member and two static contact members; the movable contact member comprises a movable contact bridge; the movable contact bridge extends in a first direction; movable contact points are respectively arranged at both ends of the movable contact bridge in the first direction; the two static contact members are each provided with a static contact point and a load connecting portion; the two load connecting portions are located on the same side of the movable contact bridge in the first direction; and the static contact points of the two static contact members are arranged respectively corresponding to the two movable contact points arranged on the movable contact bridge. Among the two static contact members, the one corresponding to the movable contact points distant from the load connecting portions in the first direction is a first static contact member, and the first static contact member is provided with a first overcurrent portion; and when the two movable contact points and the corresponding static contact points are connected, the first overcurrent portion is at least partially located on the side of the movable contact bridge facing away from the static contact points, and the overcurrent direction of the first overcurrent portion is opposite to that of the movable contact bridge.

Description

relay

[0001] This disclosure claims priority to Chinese patent application No. 202420645209.2 filed on March 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to a relay. Background Art

[0003] In the existing design scheme of the relay, when the moving contact group adopts a bridge structure, moving contacts are respectively provided at both ends of the moving contact bridge. When the load carries a large current or there is a fault current, there is a repulsive effect between the two sets of moving and static contacts of the contact assembly of this scheme. Compared with the scheme in which the contact assembly has only a single set of moving and static contacts, it places higher requirements on the short-circuit resistance performance of the relay. Summary of the Invention

[0004] A main purpose of the present disclosure is to overcome at least one defect of the above-mentioned prior art and provide a relay with strong short-circuit resistance. Furthermore, the relay can also facilitate external connection and save copper consumption.

[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, which includes a housing and a contact assembly; the contact assembly includes a moving contact group and two static contacts, the moving contact group includes a moving contact bridge, the moving contact bridge extends along a first direction, and the two ends of the moving contact bridge in the first direction are respectively provided with moving contacts, the two static contacts are both provided with static contacts and load connecting parts, the two load connecting parts are both located on the same side of the moving contact bridge in the first direction, and the static contacts of the two static contacts are respectively arranged corresponding to the moving contacts at both ends of the moving contact bridge; wherein, among the two static contacts, the one corresponding to the moving contact away from the load connecting part along the first direction is a first static contact, and the first static contact is provided with a first overcurrent part; when the moving contact is closed with the corresponding static contact, the first overcurrent part is at least partially located on the side of the moving contact bridge away from the static contact, and the overcurrent direction of the first overcurrent part is opposite to the overcurrent direction of the moving contact bridge.

[0007] According to one embodiment of the present disclosure, along the first direction, the first current flow portion at least partially corresponds to between the moving contacts at both ends of the moving contact bridge.

[0008] According to one embodiment of the present disclosure, the arrangement direction of the moving contact and the corresponding static contact is a second direction, which is perpendicular to the first direction; the first current flowing portion is located between the inner wall of the shell and the moving contact group along a third direction, which is perpendicular to the first direction and perpendicular to the second direction.

[0009] According to one embodiment of the present disclosure, the first flow portion is in a flat plate shape and is arranged parallel to a first plane, and the first plane is perpendicular to the third direction.

[0010] According to one embodiment of the present disclosure, the housing has a bottom plate and a top cover, and the bottom plate and the top cover are arranged at intervals along the third direction; wherein, the first static contact also has a first fixed portion and a first bent portion, and the load connection portion of the first static contact is a first load connection portion; the first fixed portion is provided on the housing, and the first fixed portion is used to set a static contact; one end of the first flow-through portion is connected to the first fixed portion, and in the third direction, the first flow-through portion is located in the area between the top cover and the dynamic contact group; one end of the first load connection portion is connected to the other end of the first flow-through portion via the first bent portion, and along the third direction, the first load connection portion is closer to the bottom plate than the first flow-through portion.

[0011] According to one embodiment of the present disclosure, the first load connecting portion is arranged parallel to the first plane, the first bending portion is arranged parallel to a second plane, and the second plane is perpendicular to the first direction.

[0012] According to one embodiment of the present disclosure, the housing has side walls perpendicular to the bottom plate, and the side walls include a first side wall;

[0013] The first bending portion is arranged parallel to the first side wall and located on the outside of the first side wall; and / or, an accommodating groove is provided on the outer surface of the first side wall, and the accommodating groove is suitable for accommodating the first bending portion.

[0014] According to one embodiment of the present disclosure, it further includes a magnetic circuit component;

[0015] The magnetic circuit assembly is arranged in the housing, and the magnetic circuit assembly cooperates with a push rod to drive the push rod to reciprocate along the second direction; the dynamic contact member group is driven by the push rod to move along the second direction; in the first direction, the push rod is located in the middle of the dynamic contact bridge; wherein, the first current-passing portion is arranged across the push rod along the first direction; and / or

[0016] A mutual inductor is provided on the load connecting portion of the first static contact.

[0017] According to one embodiment of the present disclosure, the other of the two static contact members is a second static contact member, the second static contact member has a second fixed portion, a second current-passing portion, and a second bending portion, and the load connecting portion of the second static contact member is a second load connecting portion.

[0018] The second fixed portion is arranged on the housing and is located on the side of the static contact away from the moving contact bridge along the second direction. The second fixed portion is used to set the static contact. One end of the second current flowing portion is connected to the second fixed portion, and the second load connecting portion is connected to the other end of the second current flowing portion via the second bending portion.

[0019] According to one embodiment of the present disclosure, the second load connecting portion is arranged parallel to the first plane, at least a portion of the second flow portion is arranged parallel to a third plane, and the third plane is perpendicular to the second direction; the second bending portion is arranged parallel to the second plane, and the second plane is perpendicular to the first direction; and / or

[0020] Along the third direction, the first load connecting portion and the second load connecting portion are arranged at the same height.

[0021] According to one embodiment of the present disclosure, the arrangement direction of the moving contact and the corresponding static contact is a second direction, which is perpendicular to the first direction; wherein the moving contact group includes at least two moving contact bridges, and the contact assembly includes at least two pairs of static contacts, at least two moving contact bridges are arranged along a third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction, at least two pairs of static contacts are arranged along the third direction, and are arranged one-to-one with at least two moving contact bridges, and the two static contacts of the same pair are respectively provided on the two static contacts.

[0022] According to one embodiment of the present disclosure, the relay also includes an anti-short circuit structure; the anti-short circuit structure includes a first magnetic conductor and a second magnetic conductor, the first magnetic conductor is fixed relative to the housing, and the second magnetic conductor is fixed relative to the moving contact bridge, and the first magnetic conductor and the second magnetic conductor are respectively located on both sides of the moving contact bridge in a second direction, the second direction is the arrangement direction of the moving contact and the corresponding static contact, the second direction is perpendicular to the first direction, and the anti-short circuit structure is suitable for resisting the electric repulsion generated between the moving contact and the static contact due to the flow of large fault current.

[0023] According to one embodiment of the present disclosure, the relay is a single-phase relay, and the single-phase relay includes a set of contact components; or

[0024] The relay is a multi-phase relay, which includes at least two groups of contact components, and each group of contact components is arranged at intervals along a second direction. The second direction is the arrangement direction of the moving contacts and the corresponding static contacts, and the second direction is perpendicular to the first direction.

[0025] According to one embodiment of the present disclosure, the relay is a three-phase relay, and the three groups of contact components are respectively the first group, the second group and the third group arranged sequentially along the second direction; along the second direction, the distance between the moving contact group of the first group and the moving contact group of the second group is greater than the distance between the moving contact group of the second group and the moving contact group of the third group; wherein, the relay also includes a magnetic circuit component, the magnetic circuit component cooperates with a push rod to drive the push rod to reciprocate along the second direction, and the magnetic circuit component is located between the first group and the second group; the moving contact group is driven by the push rod to move along the second direction.

[0026] According to one embodiment of the present disclosure, along the second direction, the three first load connecting portions are arranged at equal intervals, and the intervals between two first load connecting portions in the same group of the contact components are equal; and / or

[0027] The housing has two second side walls spaced apart along the second direction and perpendicular to the second direction; wherein, along the second direction, at least one of the two load connecting portions located at both ends does not extend beyond the adjacent second side wall.

[0028] As can be seen from the above technical solutions, the advantages and positive effects of the relay proposed in this disclosure are:

[0029] 1. The relay proposed in the present disclosure includes a housing and a contact assembly; the contact assembly includes a moving contact group and two static contacts, the moving contact group includes a moving contact bridge, the moving contact bridge extends along a first direction, and the two ends of the moving contact bridge in the first direction are respectively provided with moving contacts, the two static contacts are both provided with static contacts and load connecting parts, the two load connecting parts are both located on the same side of the moving contact bridge in the first direction, and the static contacts of the two static contacts are respectively arranged corresponding to the moving contacts at both ends of the moving contact bridge; wherein, among the two static contacts, the one corresponding to the moving contact away from the load connecting part along the first direction is the first static contact, and the first static contact is provided with a first overcurrent part; when the two moving contacts are closed with the corresponding static contacts, the first overcurrent part is at least partially located on the side of the moving contact bridge away from the static contact, and the overcurrent direction of the first overcurrent part is opposite to the overcurrent direction of the moving contact bridge. Through the above design, the present invention can place the first overcurrent portion provided by the first static contact at least partially behind the closed position of the moving contact group, thereby providing an anti-short-circuit structural effect. Specifically, when a large fault current flows into the contact assembly, the overcurrent direction of the first overcurrent portion is opposite to that of the moving contact bridge. The magnetic field generated by the current flowing through the first overcurrent portion can generate a repulsive force on the moving contact bridge toward the static contact, thereby strengthening the contact pressure between the moving contact and the static contact, and preventing them from being disconnected due to the impact of the large fault current.

[0030] Furthermore, because the load connection portions of both static contacts extend to the same side of the moving contact bridge along the first direction, they can more conveniently connect to an external load. Furthermore, the present disclosure utilizes the characteristic that one static contact necessarily extends along the first direction toward the side where the other static contact is located to provide a first current-passing portion and enhance the short-circuit resistance of the contact assembly. This rationalizes the structural utilization, avoids the need for a separate short-circuit resistance structure, saves materials, and reduces structural complexity.

[0031] 2. In one embodiment of the present disclosure, at least part of the first overcurrent portion is arranged to be located between the two moving contacts of the moving contact bridge along the first direction, which can ensure that the part of the first static contact member used to provide anti-short circuit (the first overcurrent portion) is located between the two moving contacts at least in the first direction, so that the part of the moving contact bridge where current flows between the two moving contacts can obtain the electromagnetic repulsive force from the first overcurrent portion, thereby further ensuring the anti-short circuit performance.

[0032] 3. Since the magnetic circuit assembly usually requires a pushing structure to drive the moving contact group to move, the pushing structure is generally arranged at a position corresponding to the moving contact group in the third direction. In one embodiment of the present disclosure, by setting the first over-current portion to be located between the inner wall of the shell and the moving contact group along the third direction, the first over-current portion and the pushing structure do not need to avoid each other, thereby ensuring that the structural strength of the pushing structure is not affected, and at the same time ensuring that the current-carrying cross-sectional area of ​​the first over-current portion is not affected and can better provide the ability to resist electromagnetic repulsion. Since the first over-current portion is still located in the shell, the distance between it and the moving contact group is close. Therefore, the electromagnetic force on the moving contact group is large, thereby ensuring that the short-circuit resistance is improved.

[0033] 4. In one embodiment of the present disclosure, the first current-passing portion is arranged parallel to the first plane, thereby preventing the first current-passing portion from occupying too much space of the housing in the third direction, which is conducive to the miniaturization design of the relay.

[0034] 5. In one embodiment of the present disclosure, the first static contact has a first fixed portion, a first flow portion, a first bending portion and a first load connecting portion. The first fixed portion is arranged on the housing, and the first fixed portion is used to set the static contact. One end of the first flow portion is connected to the first fixed portion. The first flow portion is located in the area between the top cover of the housing and the dynamic contact group in the third direction. One end of the first load connecting portion is connected to the other end of the first flow portion via the first bending portion. Along the third direction perpendicular to the first direction and perpendicular to the second direction, the first load connecting portion is closer to the bottom plate of the housing than the first flow portion. Through the above design, the present disclosure can utilize the first bending portion to position the first load connecting portion close to the bottom plate in the third direction, thereby avoiding the lead-out portion of the first static contact being too close to the top cover of the shell, and is further suitable for arranging the lead-out portion of the first static contact in the middle area of ​​the shell along the third direction, thereby optimizing the connection effect of the relay; in addition, arranging the first current-carrying portion between the top cover and the dynamic contact group along the third direction can avoid interference with other structures installed on the bottom plate, and can also reduce the bending path for docking with the first bending portion and the first load connecting portion located outside the shell, thereby saving materials.

[0035] 6. In one embodiment of the present disclosure, the contact assembly includes at least two moving contact bridges and at least two pairs of static contacts. The at least two moving contact bridges are arranged along a third direction, which is perpendicular to the first direction and perpendicular to the second direction. The at least two pairs of static contacts are arranged along the third direction and are arranged in a one-to-one correspondence with the at least two moving contact bridges. The two static contacts in the same pair are respectively provided on two static contact members. Through the above design, each contact assembly in the present disclosure includes at least two moving contact bridges. While ensuring a large contact gap, the use of multiple moving contact bridges in parallel can reduce contact resistance to meet performance requirements. At the same time, when subjected to high current and voltage loads, the multiple groups of moving and static contacts act as a series structure to divide voltage and a parallel structure to shunt current, reducing the load on the contacts and improving performance reliability.

[0036] 7. In one embodiment of the present disclosure, the moving contact assembly further includes an anti-short-circuit structure; the anti-short-circuit structure includes a first magnetic conductor and a second magnetic conductor, the first magnetic conductor is connected to the housing, the second magnetic conductor is connected to the moving contact bridge, and the first magnetic conductor and the second magnetic conductor are respectively located on both sides of the moving contact bridge in a second direction, the second direction being the arrangement direction of the moving contact and the corresponding static contact, the second direction being perpendicular to the first direction, and the anti-short-circuit structure is suitable for resisting the electromotive force generated between the moving contact and the static contact due to the flow of the short-circuit current. Through the above design, when a large fault current passes through the moving contact bridge, a closed magnetic circuit is formed between the first magnetic conductor and the second magnetic conductor and an electromagnetic attraction is generated. The electromagnetic attraction can resist the electromotive force generated between the moving contact and the static contact due to the flow of the large fault current, ensuring that the moving contact and the static contact do not bounce open. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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.

[0038] FIG1 is a schematic perspective structural diagram of a relay according to an exemplary embodiment;

[0039] FIG2 is a perspective exploded schematic diagram of the relay shown in FIG1 ;

[0040] FIG3 is a schematic perspective view of a partial structure of the relay shown in FIG1 ;

[0041] FIG4 is a top view of FIG3;

[0042] FIG5 is an enlarged schematic diagram of portion A in FIG4 ;

[0043] FIG6 is a schematic diagram of the three-dimensional structure of the three groups of lead-out plates shown in FIG3;

[0044] FIG7 is a top view of FIG6;

[0045] FIG8 is a top view of a partial structure of the relay shown in FIG1;

[0046] FIG9 is an enlarged schematic diagram of portion B in FIG8 ;

[0047] FIG10 and FIG11 are schematic diagrams of the three-dimensional structure of the moving contact assembly at two different viewing angles;

[0048] FIG12 is a schematic diagram of the three-dimensional structure of the contact assembly of the relay shown in FIG1;

[0049] FIG13 is a top view of FIG12;

[0050] FIG14 is a cross-sectional view taken along line CC in FIG13;

[0051] FIG15 is a schematic plan view of a relay according to another exemplary embodiment.

[0052] The following are the descriptions of the reference numerals:

[0053] In the figure: 100. Housing; 110. First side wall; 11A. Receiving groove; 120. Bottom plate; 130. Top cover; 140. Second side wall; 300. Push rod; 410. Moving contact group; 411. Moving contact; 412. Moving contact bridge; 413. Anti-short-circuit structure; 4131. First magnetic conductor; 4132. Second magnetic conductor; 420. Static contact; 430. Second static contact; 431. Second flow portion; 432. Second load connecting portion; 433. Second bending portion; 440. First static contact; 441. First flow portion; 442. First bending portion; 443. First load connecting portion; 451. First fixing portion; 452. Second fixing portion; 460. Mutual inductor; X. Second direction; Y. First direction; Z. Third direction. DETAILED DESCRIPTION

[0054] 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.

[0055] 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.

[0056] In the claims and the specification, unless otherwise specified, the terms "fixedly connected", "fixedly connected", "relatively fixed" or "disposed on" should be understood in a broad sense, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two parties, that is, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0057] Referring to Figure 1, a representative perspective view of the relay disclosed herein is shown. In this exemplary embodiment, the relay disclosed herein is described using a three-phase relay as an example. Those skilled in the art will readily appreciate that various modifications, additions, substitutions, deletions, or other variations may be made to the following specific embodiments to apply the relevant designs of this disclosure to other types of relays, and such variations remain within the scope of the principles of the relay disclosed herein.

[0058] 2 to 11 , FIG2 is a representative exploded perspective view of a relay; FIG3 is a representative perspective view of a partial structure of the relay, wherein the top cover 130 is omitted; FIG4 is a representative top view of FIG3 ; FIG5 is a representative enlarged perspective view of portion A in FIG4 ; FIG6 is a representative perspective view of three groups of lead-out pieces; FIG7 is a representative top view of FIG6 ; FIG8 is a representative top view of a partial structure of the relay, wherein the partial structure of the fixing frame 600 and the first static contact 440 is further omitted; FIG9 is a representative enlarged perspective view of portion B in FIG8 ; FIG10 and FIG11 are representative perspective views of the dynamic contact group 410 from two different perspectives, respectively; FIG12 is a representative perspective view of the contact assembly; FIG13 is a representative top view of FIG12 ; and FIG14 is a representative cross-sectional view taken along line CC in FIG13 . The structure, connection mode and functional relationship of the main components of the relay proposed in the present disclosure will be described in detail below in conjunction with the above-mentioned drawings.

[0059] As shown in Figures 1 to 14, in one embodiment of the present disclosure, the relay proposed in the present disclosure includes a housing 100, a magnetic circuit assembly, and a contact assembly. The contact assembly includes a movable contact group 410 and two static contacts. The movable contact group 410 includes a movable contact bridge 412. The movable contact bridge 412 extends along a first direction X. The movable contact bridge 412 is provided with movable contacts 411 at each end in the first direction X. Both static contacts are provided with static contacts 420 and load connection portions. The two load connection portions are used to electrically connect to an external load and are located on the same side of the movable contact bridge 412 in the first direction X. The static contacts 420 of the two static contacts are arranged corresponding to the movable contacts 411 at each end of the movable contact bridge 412. Among them, the one of the two static contacts corresponding to the movable contact away from the load connection portion in the first direction X is the first static contact. This first static contact is provided with a first current flow portion 441. When the movable contact 411 and the corresponding stationary contact 420 are closed, the first flow portion 441 is at least partially located on the side of the movable contact bridge 412 facing away from the stationary contact 420, and the flow direction of the first flow portion 441 is opposite to the flow direction of the movable contact bridge 412 (see the flow direction indicated by the continuous arrow in FIG13 ). Through the above design, the present disclosure can place the first flow portion 441 of the first static contact at least partially behind the closed position of the movable contact assembly 410, thereby providing an anti-short circuit structural effect. Specifically, when a large fault current flows through the contact assembly, the flow direction of the first flow portion 441 is opposite to that of the movable contact bridge 412. The magnetic field generated by the current flowing through the first flow portion 441 can generate a repulsive force on the movable contact bridge 412 toward the stationary contact 420 (see the force direction indicated by the dotted arrow in FIG13 ), thereby strengthening the contact pressure between the movable contact 411 and the corresponding stationary contact 420, and preventing the movable contact 411 from being disconnected due to the impact of the large fault current. Furthermore, in one embodiment of the present disclosure, since the load connection portions of both static contacts extend to the same side of the moving contact bridge 412 along the first direction X, they can more conveniently connect to an external load. Furthermore, the present disclosure utilizes the characteristic that one static contact necessarily extends along the first direction toward the side where the other static contact is located to provide the first current-passing portion 441 and enhance the short-circuit resistance of the contact assembly. This rationalizes the structural utilization, avoids the need for a separate short-circuit resistance structure, saves materials, and reduces structural complexity.

[0060] As shown in FIG4 , in one embodiment of the present disclosure, the first direction X may be parallel to the bottom plate 120 of the housing 100 . On this basis, the second direction Y described below may be parallel to the bottom plate 120 , and the third direction Z described below may be perpendicular to the bottom plate 120 .

[0061] As shown in Figures 5, 12, and 13, in one embodiment of the present disclosure, along the first direction X, the first current-passing portion 441 at least partially corresponds to the area between the movable contacts 411 at both ends of the movable contact bridge 412. Through the above design, the present disclosure can ensure that the portion of the first static contact 440 that provides short-circuit protection (e.g., the first current-passing portion 441) is located between the two movable contacts 411 at least in the first direction X. This allows the portion of the movable contact bridge 412 located between the two movable contacts 411 where current flows to obtain electromagnetic repulsion from the first current-passing portion 441, thereby further ensuring short-circuit protection.

[0062] As shown in Figures 2 and 3, in one embodiment of the present disclosure, the movable contact 411 and the corresponding stationary contact 420 are arranged in a second direction Y, which is perpendicular to the first direction X. On this basis, the first current flow portion 441 is located between the inner wall of the housing 100 and the movable contact assembly 410 along a third direction Z, which is perpendicular to the first direction X and the second direction Y. Through the above design, since the magnetic circuit component usually needs to use a pushing structure (such as the pushing rod 300) to drive the moving contact group 410 to move, the pushing structure is generally set at a position corresponding to the moving contact group 410 in the third direction Z. In one embodiment of the present disclosure, by setting the first flow-through portion 441 to be located between the inner wall of the shell 100 and the moving contact group 410 along the third direction Z, the first flow-through portion 441 and the pushing structure do not need to avoid each other, thereby ensuring that the structural strength of the pushing structure is not affected, and at the same time ensuring that the current-carrying cross-sectional area of ​​the first flow-through portion 441 is not affected and can better provide the ability to resist electromagnetic repulsion. Since the first flow-through portion 441 is still located in the shell 100, the distance between it and the moving contact group 410 is close. Therefore, the electromagnetic force on the moving contact group 410 is large, thereby ensuring that the short-circuit resistance is improved.

[0063] As shown in Figures 6, 7, 12, and 13, in one embodiment of the present disclosure, the first flow portion 441 is flat and arranged parallel to a first plane, which is perpendicular to the third direction Z. Through this design, the present disclosure can prevent the first flow portion 441 from occupying too much space of the housing 100 in the third direction Z, which is conducive to the miniaturization design of the relay.

[0064] As shown in Figures 3 to 6, in one embodiment of the present disclosure, the housing 100 includes a base plate 120 and a top cover 130, with the base plate 120 and the top cover 130 spaced apart along the third direction Z. Furthermore, the first static contact 440 may further include a first fixed portion 451 and a first bent portion 442, with the load connection portion of the first static contact 440 being a first load connection portion 443. The first flow portion 441, the first fixed portion 451, the first bent portion 442, and the first load connection portion 443 are all flat. The first fixed portion 451 is disposed in the housing 100 and is used to mount the static contact 420. The first flow portion 441 is located in the housing 100, and one end of the first flow portion 441 along the first direction X is connected to the first fixing portion 451. In the third direction Z, the first flow portion 441 is located in the area between the top cover 130 and the dynamic contact assembly 410. The first load connecting portion 443 extends along the first direction X, and one end thereof is connected to the other end of the first flow portion 441 along the first direction X via the first bending portion 442; along the third direction Z perpendicular to the first direction X and perpendicular to the second direction Y, the first load connecting portion 443 is closer to the bottom plate 120 of the housing 100 than the first flow portion 441. Through the above design, since the first flow-through portion 441 is located in the area between the top cover 130 and the dynamic contact group 410, the first flow-through portion 441 is closer to the top cover 130 than the dynamic contact group 410. The present disclosure can use the first bending portion 442 to move the position of the first load connecting portion 443 away from the top cover 130 and closer to the bottom plate 120 in the third direction Z, thereby avoiding the lead-out portion of the first static contact 440 (such as the first load connecting portion 443) from being too close to the top cover 130, and is further suitable for arranging the lead-out portion of the first static contact 440 in the middle area of ​​the housing 100 along the third direction Z, thereby optimizing the connection effect of the relay.

[0065] As shown in Figures 3 and 4, in one embodiment of the present disclosure, the first load connecting portion 443 can be arranged parallel to the first plane. In addition, the first bent portion 442 can be arranged parallel to the second plane, which is perpendicular to the first direction X. Accordingly, the first flow-through portion 441 is connected to the side edge of the first bent portion 442 extending along the third direction Z, and the first load connecting portion 443 is connected to the other side edge of the first bent portion 442 extending along the third direction Z. Through the above design, the present disclosure can achieve the horizontal arrangement of the first flow-through portion 441 (i.e., arranged parallel to the base plate 120), thereby avoiding excessive occupation of the space of the housing 100 in the third direction Z, which is conducive to the miniaturized design of the relay.

[0066] In one embodiment of the present disclosure, the housing 100 has a side wall perpendicular to the bottom plate 120, as shown in Figures 4 and 6, the side wall includes a first side wall 110, the first bending portion 442 can be arranged parallel to the first side wall 110, and the first bending portion 442 is located on the outside of the first side wall 110.

[0067] In one embodiment of the present disclosure, the outer surface of the first side wall 110 may be provided with a receiving groove 11A, and the receiving groove 11A is suitable for receiving at least a portion of the first bent portion 442. It should be noted that this embodiment is described using a three-phase relay as an example, that is, the relay includes three groups of contact components, and further includes three first bent portions 442, wherein only a portion of the first bent portions 442 may be respectively received in the receiving groove 11A. For example, the two first bent portions 442 on the left side shown in FIG4 are respectively received in the receiving groove 11A. Of course, at least one or all of the first bent portions 442 may also be received in the receiving groove 11A. Through the above design, when a mutual inductor 460 (see FIG3 ) is provided on the load connection portion 443 of the first static contact 440, the present disclosure can enable the mutual inductor 460 to be arranged closer to the first side wall 110 of the housing 100, thereby further ensuring copper loss savings and reducing the size of the relay.

[0068] As shown in Figure 4, in one embodiment of the present disclosure, a magnetic circuit assembly is disposed within the housing 100 and cooperates with a push rod 300 to drive the push rod 300 to reciprocate in the second direction Y. In each contact assembly, each movable contact group is driven by the push rod 300 to move in the second direction Y. In the first direction X, the push rod 300 is located in the middle of the movable contact bridge 412. Accordingly, a first flow passage 441 is disposed across the push rod 300 in the first direction X. For example, the first flow passage 441 and the push rod 300 may be spaced apart in the third direction Z. For another example, the push rod 300 may have an escape groove defined on its edge in the third direction Z. The escape groove extends through the push rod 300 in the first direction X, allowing the first flow passage 441 to pass through. The width of the escape groove in the second direction Y may be greater than the width of the first flow passage 441 to ensure that the push rod 300 does not structurally interfere with the first flow passage 441 during reciprocating motion in the second direction Y. For another example, a clearance window may be provided on the push rod 300. The clearance window extends through the push rod 300 along the first direction X, allowing the first flow passage 441 to pass through. The width of the clearance window in the second direction Y may be greater than the width of the first flow passage 441, ensuring that the push rod 300 does not structurally interfere with the first flow passage 441 when reciprocating along the second direction Y. Furthermore, the first flow passage 441 may partially extend from the housing 100, for example, partially extend from the housing 100 along the third direction Z, and the present invention is not limited to the above embodiment.

[0069] As shown in Figures 1 to 3, in one embodiment of the present disclosure, a mutual inductor 460 can be provided on the first load connection portion 443 of the first static contact 440 to convert a large current into a small current for measurement, thereby protecting electrical equipment, controlling the power system, and monitoring power quality. Based on this, in this embodiment, the first current-carrying portion 441 is disposed on the side of the moving contact bridge 412 away from the static contact 420. This not only helps to improve the short-circuit resistance, but also helps to create conditions for the first load connection portion 443 to be spaced apart from another load connection portion along the second direction Y, and allows the first load connection portion 443 to have suitable space in the second direction Y for the mutual inductor 460 to be installed. The second direction Y is the direction of movement of the moving contact assembly 410 and the push rod 300. The space in this direction is more abundant than the space in other directions. Therefore, arranging the mutual inductor 460 along this direction makes more reasonable space utilization and does not cause excessive space to be occupied in other directions, which is conducive to the miniaturization design of the relay.

[0070] As shown in Figures 3 to 7, in one embodiment of the present disclosure, of the two static contacts, the one corresponding to the movable contact 411 proximal to the load connection portion along the first direction X is a second static contact 430. This second static contact 430 may include a second fixed portion 452, a second flow-through portion 431, and a second bent portion 433, all of which are flat. The load connection portion of the second static contact 430 is the second load connection portion 432. The second fixed portion 452 is disposed on the housing 100 and is located on the side of the static contact 420 facing away from the movable contact bridge 412 along the second direction Y. The second fixed portion 452 is used to mount the static contact 420. One end of the second flow-through portion 431 is connected to the second fixed portion 452, and the second load connection portion 432 is connected to the other end of the second flow-through portion 431 via the second bent portion 433. On this basis, the second load connection portion 432 can be arranged parallel to the first plane, and at least a portion of the second current flow portion 431 can be arranged parallel to a third plane, which is perpendicular to the second direction Y. The second bend portion 433 can be arranged parallel to the second plane, which is perpendicular to the first direction X. This frees up more space in the second direction Y for the first load connection portion 443 to accommodate the installation of the transformer. It should be noted that this embodiment uses a three-phase relay as an example, i.e., the relay includes three sets of contact assemblies and, in turn, three second current flow portions 431. For example, the two second current flow portions 431 on the left side shown in FIG4 are all arranged parallel to the first plane, and the second current flow portion 431 on the right side is partially arranged parallel to the first plane, while the other portion is not arranged parallel to the first plane. Accordingly, the second current flow portion 431 is connected to the edge of the second bend portion 433 extending along the second direction Y, and the second load connection portion 432 is connected to the edge of the second bend portion 433 extending along the third direction Z. Through the above design, the present disclosure can utilize the second bending portion 433 to achieve bending and leading out the second static contact 430 , thereby meeting the connection requirements after the second static contact 430 extends out of the housing 100 .

[0071] As shown in Figure 3, in one embodiment of the present disclosure, the second load connection portion 432 and the first load connection portion 443 can be arranged at the same height along the third direction Z. Through the above structural design, the present disclosure can ensure that the load connection portions are arranged at the same height, thereby enabling more convenient connection to an external load and achieving a better connection effect.

[0072] As shown in Figures 2 and 10, in one embodiment of the present disclosure, the movable contact assembly 410 may include at least two movable contact bridges 412 arranged along a third direction Z, such as but not limited to the two movable contact bridges 412 shown in the accompanying drawings. Correspondingly, the contact assembly may include at least two pairs of static contacts 420 arranged along the third direction Z, such as but not limited to the two pairs of static contacts 420 shown in the accompanying drawings. The at least two pairs of static contacts 420 are arranged in a one-to-one correspondence with the at least two movable contact bridges 412, and the two static contacts 420 of the same pair are respectively disposed on two static contact members 430 (for example, respectively disposed on the first fixed portion 451 and the second fixed portion 452). Accordingly, taking the contact assembly including two movable contact bridges 412 as an example, the present disclosure can ensure a large contact gap while reducing the contact resistance by connecting multiple movable contact bridges 412 in parallel to meet performance requirements. At the same time, when the four groups of movable contacts 411 and static contacts 420 are subjected to high current and voltage loads, they play the role of voltage division in a series structure and current diversion in a parallel structure, thereby reducing the load on the contacts and improving performance reliability.

[0073] As shown in Figures 2 and 8, in one embodiment of the present disclosure, the relay proposed in the present disclosure is a three-phase relay. The three-phase relay includes three contact groups arranged at intervals along a second direction Y. Specifically, the housing 100 is provided with three pairs of static contacts 430, and the push rod 300 is connected to three movable contact groups 410, which are arranged at intervals along the second direction Y. The second direction Y is the direction in which the movable contacts 411 and the corresponding static contacts 420 are arranged, and the second direction Y is perpendicular to the first direction X. Based on this, the movable contacts 411 of the three movable contact groups 410 face the same side along the second direction Y. In other words, when the push rod 300 moves, the movable contacts 411 of the three movable contact groups 410 move synchronously toward or away from their corresponding static contacts 420, meaning that the movable contacts 411 and the static contacts 420 of the three contact groups close or open synchronously. In some embodiments, the relay proposed in the present disclosure may also be a two-phase relay, a four-phase relay, or other multi-phase relay. In other words, in various possible embodiments consistent with the design concepts of the present disclosure, the relay proposed in the present disclosure may be a multi-phase relay, and the multi-phase relay includes at least two sets of contact assemblies, and each set of moving contact members is arranged at intervals along the second direction Y. Furthermore, the relay proposed in the present disclosure may also be a single-phase relay, and the single-phase relay includes one set of contact assemblies.

[0074] In one embodiment of the present disclosure, for ease of understanding and description, taking the relay as a three-phase relay as an example, the three groups of contact components are defined as the first group, the second group, and the third group, which are arranged sequentially along the second direction Y. On this basis, along the second direction Y, the distance between the moving contact group 410 of the first group and the moving contact group 410 of the second group is greater than the distance between the moving contact group 410 of the second group and the moving contact group 410 of the third group. The relay includes a magnetic circuit component, which cooperates with a push rod 300 to drive the push rod 300 to reciprocate along the second direction Y. The magnetic circuit component can be located between the first group and the second group. It should be noted that, taking Figure 4 as an example, the three groups of contact components are the first group, the second group, and the third group from right to left along the second direction Y in the figure. In some embodiments, the first group, the second group, and the third group can also be understood as being arranged in order from left to right along the second direction in Figure 4, and are not limited to this embodiment.

[0075] It should be noted that, because the spacing between the first group's movable contact assembly 410 and the second group's movable contact assembly 410 is greater, that is, the spacing between the first group's static contact 420 and the second group's static contact 420 is greater than the spacing between the second group's static contact 420 and the third group's static contact 420. On this basis, to achieve an evenly spaced arrangement of the lead-out portions of the three groups of contact assemblies, in this embodiment, portions of the structures of the two static contacts of the first group are bent and extended along the first direction toward the second group. For example, the first bent portion 442 of the first group is extended along the first direction X toward the second group, thereby connecting the first flow portion 441 and the first load connecting portion 443 of the first group to different positions of the first bent portion 442 in the first direction X. Simultaneously, a portion of the second flow portion 431 of the first group is extended along the first direction X toward the second group, thereby staggering the second fixed portion 452 and the second load connecting portion 432 of the first group in the first direction X.

[0076] Based on the design that the magnetic circuit component is arranged between the first group and the second group with a larger spacing, in one embodiment of the present disclosure, along the second direction Y, the three first load connection parts 443 can be arranged at equal intervals, and the spacing between the first load connection parts 443 and the second load connection parts 432 in the same group of contact components is also equal. At this time, in order to compensate for the spacing difference between the three groups of contact components, the specific structures of the first static contact 440 and the second static contact 430 can be adaptively adjusted. For example, the first bending portion 442 of the first static contact 440 of the first group (that is, the one located on the far right in Figure 4) and the second current-passing portion 431 of the second static contact 430 of the first group can be extended in the second direction Y, thereby ensuring the above-mentioned equal spacing arrangement and ensuring that the first load connection portion 443 of the first group can be spaced a certain distance from the adjacent shell side wall (such as the side wall 140 on the right side in Figure 4) along the second direction Y, so that after the mutual inductor is installed in place on the first load connection portion 443, it will not protrude or protrude as little as possible from the right side wall of the shell, so as to facilitate reducing the size of the relay in the second direction Y.

[0077] As shown in Figure 4 , in one embodiment of the present disclosure, the housing has two second side walls 140 spaced apart along a second direction Y and perpendicular to the second direction Y. Furthermore, along the second direction Y, at least one of the two load connection portions at either end does not extend beyond the adjacent second side wall 140. This design allows for a more compact arrangement of the lead-out portions of each contact assembly, reducing space usage.

[0078] As shown in Figure 3, in one embodiment of the present disclosure, still taking a three-phase relay as an example, the static contacts have lead-out portions located outside the housing 100, such as the second load connection portion 432 of the second static contact 430 and the first load connection portion 443 of the first static contact 440. In particular, along the third direction Z, the second load connection portions 432 and first load connection portions 443 corresponding to the three groups of contact assemblies can be arranged at the same height. Through this structural design, the present disclosure ensures that the load connection portions are arranged at the same height, thereby enabling more convenient connection to an external load and achieving a better connection effect.

[0079] As shown in Figures 11 and 15, in one embodiment of the present disclosure, the relay proposed in the present disclosure may also be provided with an anti-short circuit structure 413, which is used to resist the electromotive force generated by a large current (e.g., a short circuit current) flowing between the moving contact 411 and the static contact 420 due to a faulty current. Specifically, the anti-short circuit structure 413 includes a first magnetic conductor 4131 and a second magnetic conductor 4132, wherein the first magnetic conductor 4131 is fixed relative to the housing 100, and the second magnetic conductor 4132 is fixed relative to the moving contact bridge 412, and the first magnetic conductor 4131 and the second magnetic conductor 4132 are respectively located on both sides of the moving contact bridge 412 in the second direction Y. In the example provided in this embodiment, the first magnetic conductor 4131 and the second magnetic conductor 4132 are respectively fixedly connected to the housing 100 and the moving contact bridge 412. Taking the embodiments shown in Figures 11 and 15 as an example, when the movable contact assembly 410 includes two movable contact bridges 412, the anti-short-circuit structure 413 can specifically include a first magnetic conductor 4131 and two second magnetic conductors 4132, with the two second magnetic conductors 4132 arranged corresponding to the two movable contact bridges 412. When a large fault current (e.g., a short-circuit current) passes through the movable contact bridge 412, a closed magnetic circuit is formed between the first magnetic conductor 4131 and the second magnetic conductor 4132 (see the direction of the magnetic lines of force indicated by the solid arrows in Figure 14), generating an electromagnetic attractive force. This electromagnetic attractive force can counteract the electromotive force generated by the large fault current between the movable contact 411 and the stationary contact 420, ensuring that the movable contact 411 and the stationary contact do not bounce apart.

[0080] 15 , FIG15 representatively shows a plan view of another exemplary embodiment of a relay that can embody the principles of the present disclosure, wherein the top cover 130 is specifically omitted.

[0081] Different from the design of a three-phase relay in the embodiments shown in Figures 1 to 10, as shown in Figure 15, in one embodiment of the present disclosure, the relay proposed in the present disclosure can be a single-phase relay, which only includes one set of contact components, that is, the relay is only provided with two static contacts and one moving contact group 410, and the relay is only provided with one second static contact 430 and one first static contact 440.

[0082] 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 of the relays shown in the drawings or described in this specification or any components of the relays.

[0083] In summary, the relay proposed in the present disclosure includes a housing 100, a magnetic circuit assembly, and a contact assembly. The contact assembly includes a moving contact group 410 and two static contacts. The moving contact group 410 includes a moving contact bridge 412. The moving contact bridge 412 extends along a first direction X. The moving contact bridge 412 is provided with moving contacts 411 at both ends in the first direction X. Both static contacts are provided with a static contact 420 and a load connection portion. The two load connection portions are located on the same side of the moving contact bridge 412 in the first direction X. The static contacts 420 of the two static contacts are arranged corresponding to the moving contacts 411 at both ends of the moving contact bridge 412. Among them, the one of the two static contacts corresponding to the moving contact away from the load connection portion in the first direction X is the first static contact, and the first static contact is provided with a first current flow portion 441. When the two moving contacts 411 are closed with the corresponding static contacts 420, the first flow portion 441 is at least partially located on the side of the moving contact bridge 412 facing away from the static contact 420, and the flow direction of the first flow portion 441 is opposite to the flow direction of the moving contact bridge 412. Through the above design, the present disclosure can place the first flow portion 441 of the first static contact at least partially behind the closed position of the moving contact assembly 410, thereby providing an anti-short circuit structural effect. Specifically, when a large fault current flows through the contact assembly, the flow direction of the first flow portion 441 is opposite to that of the moving contact bridge 412. The magnetic field generated by the current flowing through the first flow portion 441 can generate a repulsive force on the moving contact bridge 412 toward the static contact 420, thereby strengthening the contact pressure between the moving contact 411 and the static contact 420, and preventing them from being disconnected due to the impact of the large fault current. Furthermore, in one embodiment of the present disclosure, since the load connection portions of both static contacts extend to the same side of the moving contact bridge 412 along the first direction X, they can more conveniently connect to an external load. Furthermore, the present disclosure utilizes the characteristic that one static contact necessarily extends along the first direction toward the side where the other static contact is located to provide the first current-passing portion 441 and enhance the short-circuit resistance of the contact assembly. This rationalizes the structural utilization, avoids the need for a separate short-circuit resistance structure, saves materials, and reduces structural complexity.

[0084] 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.

[0085] 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: include: shell; A contact assembly comprising a movable contact group and two static contacts, wherein the movable contact group comprises a movable contact bridge, the movable contact bridge extending along a first direction, and movable contacts respectively provided at both ends of the movable contact bridge in the first direction, and both of the two static contacts are provided with a static contact and a load connection portion, the two load connection portions being located on the same side of the movable contact bridge in the first direction, and the static contacts of the two static contacts respectively corresponding to the movable contacts at both ends of the movable contact bridge; Among them, among the two static contacts, the one corresponding to the moving contact away from the load connecting part along the first direction is the first static contact, and the first static contact is provided with a first current-passing portion; when the moving contact and the corresponding static contact are closed, the first current-passing portion is at least partially located on the side of the moving contact bridge away from the static contact, and the current-passing direction of the first current-passing portion is opposite to the current-passing direction of the moving contact bridge.

2. The relay according to claim 1, wherein: Along the first direction, the first current flowing portion at least partially corresponds to between the moving contacts at both ends of the moving contact bridge.

3. The relay according to claim 1, wherein: The arrangement direction of the moving contact and the corresponding static contact is a second direction, which is perpendicular to the first direction; the first current flowing portion is located between the inner wall of the shell and the moving contact group along a third direction, which is perpendicular to the first direction and the second direction.

4. The relay according to claim 3, characterized in that The first flow portion is in a flat plate shape and is arranged parallel to a first plane, and the first plane is perpendicular to the third direction.

5. The relay according to claim 4, characterized in that The housing has a bottom plate and a top cover, and the bottom plate and the top cover are arranged at intervals along the third direction; wherein, the first static contact also has a first fixed portion and a first bent portion, and the load connection portion of the first static contact is a first load connection portion; the first fixed portion is provided on the housing, and the first fixed portion is used to set a static contact; one end of the first flow-through portion is connected to the first fixed portion, and in the third direction, the first flow-through portion is located in the area between the top cover and the dynamic contact group; one end of the first load connection portion is connected to the other end of the first flow-through portion via the first bent portion, and along the third direction, the first load connection portion is closer to the bottom plate than the first flow-through portion.

6. The relay according to claim 5, characterized in that The first load connecting portion is arranged parallel to the first plane, the first bending portion is arranged parallel to a second plane, and the second plane is perpendicular to the first direction.

7. The relay according to claim 6, characterized in that The housing has side walls perpendicular to the bottom plate, and the side walls include a first side wall; The first bending portion is arranged parallel to the first side wall and located on the outside of the first side wall; and / or, an accommodating groove is provided on the outer surface of the first side wall, and the accommodating groove is suitable for accommodating the first bending portion.

8. The relay according to claim 3, wherein: Also included is a magnetic circuit assembly; The magnetic circuit assembly is arranged in the housing, and the magnetic circuit assembly cooperates with a push rod to drive the push rod to reciprocate along the second direction; the dynamic contact member group is driven by the push rod to move along the second direction; in the first direction, the push rod is located in the middle of the dynamic contact bridge; wherein, the first current-passing portion is arranged across the push rod along the first direction; and / or A mutual inductor is provided on the load connecting portion of the first static contact.

9. The relay according to claim 3, characterized in that The other of the two static contact pieces is a second static contact piece, the second static contact piece has a second fixed portion, a second current-passing portion, and a second bending portion, and the load connecting portion of the second static contact piece is a second load connecting portion. The second fixed portion is arranged on the housing and is located on the side of the static contact away from the moving contact bridge along the second direction. The second fixed portion is used to set the static contact. One end of the second current flowing portion is connected to the second fixed portion, and the second load connecting portion is connected to the other end of the second current flowing portion via the second bending portion.

10. The relay according to claim 9, characterized in that: The second load connecting portion is arranged parallel to the first plane, at least a portion of the second flow portion is arranged parallel to a third plane, and the third plane is perpendicular to the second direction; the second bending portion is arranged parallel to the second plane, and the second plane is perpendicular to the first direction; and / or Along the third direction, the first load connecting portion and the second load connecting portion are arranged at the same height.

11. The relay according to claim 1, wherein: The arrangement direction of the moving contacts and the corresponding static contacts is a second direction, which is perpendicular to the first direction; wherein the moving contact group includes at least two moving contact bridges, and the contact assembly includes at least two pairs of static contacts, at least two moving contact bridges are arranged along a third direction, and the third direction is perpendicular to the first direction and the second direction, at least two pairs of static contacts are arranged along the third direction, and are arranged one-to-one with at least two moving contact bridges, and the two static contacts of the same pair are respectively provided on the two static contacts.

12. The relay according to any one of claims 1 to 11, characterized in that: The relay also includes an anti-short-circuit structure; the anti-short-circuit structure includes a first magnetic conductor and a second magnetic conductor, the first magnetic conductor is fixed relative to the housing, and the second magnetic conductor is fixed relative to the moving contact bridge, and the first magnetic conductor and the second magnetic conductor are respectively located on both sides of the moving contact bridge in a second direction, the second direction is the arrangement direction of the moving contact and the corresponding static contact, the second direction is perpendicular to the first direction, and the anti-short-circuit structure is suitable for resisting the electric repulsion generated between the moving contact and the static contact due to the flow of large fault current.

13. The relay according to any one of claims 1 to 11, characterized in that: The relay is a single-phase relay, and the single-phase relay includes a set of contact components; or The relay is a multi-phase relay, which includes at least two groups of contact components, and each group of contact components is arranged at intervals along a second direction. The second direction is the arrangement direction of the moving contacts and the corresponding static contacts, and the second direction is perpendicular to the first direction.

14. The relay according to claim 13, characterized in that The relay is a three-phase relay, and the three groups of contact components are respectively the first group, the second group and the third group arranged sequentially along the second direction; along the second direction, the distance between the moving contact group of the first group and the moving contact group of the second group is greater than the distance between the moving contact group of the second group and the moving contact group of the third group; wherein, the relay also includes a magnetic circuit component, the magnetic circuit component cooperates with a push rod to drive the push rod to reciprocate along the second direction, and the magnetic circuit component is located between the first group and the second group; the moving contact group is driven by the push rod to move along the second direction.

15. The relay according to claim 14, characterized in that: Along the second direction, the three first load connecting portions are arranged at equal intervals, and the intervals between two first load connecting portions in the same group of the contact components are equal; and / or The housing has two second side walls spaced apart along the second direction and perpendicular to the second direction; wherein, along the second direction, at least one of the two load connecting portions located at both ends does not extend beyond the adjacent second side wall.

Images