Auxiliary contact structure and relay

Abstract

The invention provides an auxiliary contact structure and a relay, and relates to the technical field of electrical equipment. The auxiliary contact structure comprises an installation cover, a static contact assembly, a moving contact assembly and an auxiliary contact assembly. The static contact assembly is arranged on the mounting cover; the moving contact assembly is movably arranged on the mounting cover and can be in contact with the static contact assembly to form a plurality of groups of loops; the auxiliary contact assembly comprises an auxiliary moving contact piece and an auxiliary static contact piece, the auxiliary static contact piece is arranged on the installation cover, and the auxiliary moving contact piece is arranged on the moving contact assembly and used for moving synchronously with the moving contact assembly so as to detect any loop formed by contact of the moving contact assembly and the static contact assembly. The auxiliary contact assembly is arranged on the moving contact assembly, so that the auxiliary contact assembly synchronously moves along with the moving contact assembly, the working state of the moving contact assembly is detected through the auxiliary contact assembly under the condition that the moving contact assembly and the static contact assembly are in contact and form a loop, the detection precision is high, and the detection efficiency is high. And the method is suitable for various relays.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and more particularly, to an auxiliary contact structure and a relay. Background Art

[0002] In the prior art, in order to detect whether a DC relay is connected during operation, an auxiliary contact is usually provided. However, the existing contactor structure is simple and all are single-path conduction structures. Therefore, the auxiliary contact in the relay can only detect single-path conduction and cannot be applied to relays with complex structures and multiple circuits. Summary of the Invention

[0003] The present invention provides an auxiliary contact structure and a relay, which can effectively detect the working state of the relay.

[0004] Embodiments of the present invention may be implemented as follows:

[0005] In a first aspect, the present invention provides an auxiliary contact structure, including a mounting cover, a static contact assembly, a moving contact assembly, and an auxiliary contact assembly;

[0006] The static contact assembly is disposed in the mounting cover;

[0007] The moving contact assembly is movably disposed in the mounting cover and can contact the static contact assembly to form multiple groups of circuits;

[0008] The auxiliary contact assembly includes an auxiliary moving contact and an auxiliary static contact. The auxiliary static contact is disposed in the mounting cover, and the auxiliary moving contact is disposed on the moving contact assembly for synchronous movement with the moving contact assembly. The auxiliary contact assembly is used to detect the working state of the multiple groups of circuits.

[0009] In an optional embodiment, the moving contact assembly includes a moving contact and a base. The base is rotatably disposed in the mounting portion of the mounting cover, and the moving contact is disposed on the base;

[0010] The auxiliary static contact includes a first probe group and a second probe group. Both the first probe group and the second probe group are disposed on the circumferential side of the mounting portion;

[0011] The auxiliary moving contact includes a first contact piece and a second contact piece; the first contact piece is used to contact the first probe group, and the second contact piece is used to contact the second probe group.

[0012] In an optional embodiment, the static contact assembly includes at least two groups of static contacts, and the moving contact assembly includes one moving contact;

[0013] The base is used to drive the moving contact to contact with any group of static contacts and be in the first state, or to drive the moving contact to contact with another group of static contacts and be in the second state;

[0014] In the first state, the first probe group contacts the first contact piece, and the second probe group is spaced from the second contact piece;

[0015] In the second state, the first probe group is spaced from the first contact piece, and the second probe group touches the second contact piece.

[0016] In an alternative embodiment, the first probe group, the mounting portion, and the second probe group are located on the same straight line;

[0017] The included angle formed by the connection line between the first contact piece and the mounting portion and the connection line between the second contact piece and the mounting portion is a right angle or an acute angle.

[0018] In an alternative embodiment, the included angle formed by the connection line between the first probe group and the mounting portion and the connection line between the second probe group and the mounting portion is a right angle or an acute angle;

[0019] The first contact piece, the mounting portion, and the second contact piece are located on the same straight line.

[0020] In an alternative embodiment, the moving contact assembly further includes a fixing member, the fixing member is disposed on the base, and both the first contact piece and the second contact piece are disposed on the fixing member.

[0021] In an alternative embodiment, the fixing member includes a supporting portion and two extending portions disposed at an included angle, and the auxiliary contact assembly is disposed at the end of the extending portion.

[0022] In an alternative embodiment, the moving contact assembly includes a moving contact and a base, the base is rotatably disposed on the mounting portion of the mounting cover, and the moving contact is disposed on the base;

[0023] The auxiliary moving contact member includes a first contact piece and a second contact piece;

[0024] The auxiliary static contact member includes a third probe group, the third probe group is disposed on the circumferential side of the mounting portion, and the third probe group selectively contacts the first contact piece or the second contact piece.

[0025] In an alternative embodiment, the static contact assembly includes at least two groups of static contacts, the moving contact assembly includes a plurality of moving contacts, and each moving contact is correspondingly disposed with at least two groups of the static contacts.

[0026] In a second aspect, the present invention provides a relay, including the auxiliary contact structure according to any one of the foregoing embodiments.

[0027] The beneficial effects of the auxiliary contact structure and the relay provided by the embodiments of the present invention include: by arranging the auxiliary moving contact in the auxiliary contact assembly on the moving contact assembly, so that the auxiliary moving contact moves synchronously with the moving contact assembly, thus when the moving contact assembly contacts the static contact assembly and forms a circuit, the working state of the moving contact assembly is detected by the contact between the auxiliary moving contact and the auxiliary static contact. Since the moving contact assembly can form multiple circuits with multiple groups of static contact assemblies, the working states of multiple circuits can be detected by arranging the auxiliary contact assembly, and the detection accuracy is high, which can be applied to various different types of relays. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 Schematic diagram of the first embodiment of the auxiliary contact structure provided by the embodiment of the present invention;

[0030] Figure 2 Schematic diagram of the first state of the first embodiment of the auxiliary contact structure provided by the embodiment of the present invention;

[0031] Figure 3 Schematic diagram of the second state of the first embodiment of the auxiliary contact structure provided by the embodiment of the present invention;

[0032] Figure 4 Schematic diagram of the first perspective of the first embodiment of the auxiliary contact structure provided by the embodiment of the present invention;

[0033] Figure 5 Schematic diagram of the second perspective of the first embodiment of the auxiliary contact structure provided by the embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the first state of the second embodiment of the auxiliary contact structure provided by the embodiment of the present invention;

[0035] Figure 7 Schematic diagram of the second state of the second embodiment of the auxiliary contact structure provided by the embodiment of the present invention.

[0036] Icons: 10 - Auxiliary contact structure; 100 - Mounting cover; 110 - Mounting part; 200 - Stationary contact assembly; 210 - Stationary contact; 300 - Moving contact assembly; 310 - Moving contact; 320 - Base; 330 - Fixing part; 331 - Supporting part; 332 - Extension part; 340 - Mounting bracket; 400 - Auxiliary contact assembly; 410 - Auxiliary moving contact; 411 - First contact piece; 412 - Second contact piece; 420 - Auxiliary stationary contact; 421 - First probe group; 422 - Second probe group; 423 - Third probe group. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0039] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0040] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0041] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0042] It should be noted that the features in the embodiments of the present invention can be combined with each other without conflict.

[0043] In the prior art, in order to detect whether a DC relay is connected during operation, auxiliary contacts are usually provided. However, the existing contactors have a simple structure and are all single-path conduction structures. Therefore, the auxiliary contacts in the relay can only detect single-path conduction and cannot be applied to relays with complex structures and multiple circuits, nor can they accurately detect the working state of the relay.

[0044] Based on the above problems, the present application provides an auxiliary contact structure, which is applied to related electrical fields such as relays, has accurate detection, and can effectively detect multiple circuits.

[0045] First Embodiment

[0046] Please refer to Figure 1 , the auxiliary contact structure 10 includes a mounting cover 100, a static contact assembly 200, a moving contact assembly 300, and an auxiliary contact assembly 400.

[0047] Specifically, the static contact assembly 200 is disposed in the mounting cover 100; the moving contact assembly 300 is movably disposed in the mounting cover 100 and can contact the static contact assembly 200 to form multiple groups of circuits; the auxiliary contact assembly 400 includes an auxiliary moving contact 410 and an auxiliary static contact 420. The auxiliary static contact 420 is disposed in the mounting cover 100, and the auxiliary moving contact 410 is disposed on the moving contact assembly 300 and is used to move synchronously with the moving contact assembly 300. The auxiliary contact assembly 400 is used to detect the working state of multiple groups of circuits.

[0048] In this embodiment, by disposing the auxiliary contact assembly 400 on the moving contact assembly 300, the auxiliary static contact 420 follows the moving contact assembly 300 to move synchronously. Thus, when the moving contact assembly 300 contacts the static contact assembly 200 and forms a circuit, the working state of the circuit of the moving contact assembly 300 is detected by the contact between the auxiliary moving contact 410 and the auxiliary static contact 420, and the detection accuracy is high; since the moving contact assembly 300 can form multiple groups of circuits with multiple groups of static contact assemblies 200, the auxiliary contact structure 10 can be used not only for relays that detect the state of a single-path circuit but also for relays that detect the state of multiple-path circuits, and has strong adaptability.

[0049] It should be noted that the static contact assembly 200 includes at least two groups of static contacts 210, the moving contact assembly 300 includes a moving contact 310, and the number of moving contacts 310 can be one. One moving contact 310 corresponds to at least two groups of static contacts 210 respectively to form at least two circuits; of course, the number of moving contacts 310 can also be multiple, and each moving contact 310 corresponds to at least two groups of static contacts 210, that is, each moving contact 310 can contact the corresponding at least two groups of moving contacts 310 respectively to form at least two circuits.

[0050] In this embodiment, to ensure the detection accuracy, an auxiliary static contact 420 is arranged on the mounting cover 100 to contact the auxiliary moving contact 410 when the static contact assembly 200 contacts the moving contact assembly 300, and an electrical signal indicating that the static contact assembly 200 contacts the moving contact assembly 300 to connect the circuit is sent out.

[0051] Furthermore, the moving contact assembly 300 further includes a moving contact 310 and a base 320. The moving contact 310 is arranged on the base 320, and the base 320 is rotatably arranged on the mounting portion 110 of the mounting cover 100. It can be understood that the mounting portion 110 is the central part of the mounting cover 100. Therefore, by arranging the moving contact assembly 300 on the base 320, the moving contact 310 can be driven by the base 320 to rotate around the center of the mounting cover 100.

[0052] Specifically, the base 320 is movably arranged on the mounting cover 100, and the base 320 is used for mounting the moving contact 310. It can be understood that in this embodiment, the number of static contacts 210 is four, and the four static contacts 210 are symmetrically and cross - shapedly distributed on the mounting cover 100. The moving contact 310 is strip - shaped, and the middle part of the moving contact 310 is fixedly mounted on the base 320 to rotate under the drive of the base 320, so that the two ends of the moving contact 310 respectively contact two of the opposite static contacts 210.

[0053] It should be noted that the specific position of the mounting portion 110 is usually preferably at the central part of the mounting cover 100. Of course, in other embodiments, it can also be arranged at other positions according to its specific structure, and no specific limitation is made here.

[0054] Furthermore, the auxiliary static contact 420 includes a first probe group 421 and a second probe group 422. Both the first probe group 421 and the second probe group 422 are composed of at least one probe. For example, in this embodiment, two probes are in a group.

[0055] Both the first probe group 421 and the second probe group 422 are arranged on the circumferential side of the mounting portion 110. For example, the first probe group 421 can be arranged between two adjacent static contacts 210, and the second probe group 422 can be arranged between two other adjacent static contacts 210.

[0056] The auxiliary moving contact 410 includes a first contact piece 411 and a second contact piece 412, and both the first contact piece 411 and the second contact piece 412 can be reed pieces. The first contact piece 411 is used to contact the first probe group 421 to form a first circuit; the second contact piece 412 is used to contact the second probe group 422 to form a second circuit; therefore, by correspondingly arranging a set of moving contacts 310 and two sets of static contacts 210, the purpose of switching between two circuits can be achieved. Of course, it is not limited to this. The first probe group 421 can also touch the second contact piece 412, and the second probe group 422 can also touch the first contact piece 411, which can be determined according to the actual usage situation.

[0057] In this embodiment, by arranging at least two probe groups and at least two contact pieces, when the moving contact 310 touches different static contacts 210, that is, when it is in different circuits, it can be detected by the touch between the probe group and the contact piece, thereby improving the detection accuracy, and through different touch signals, the working state of the moving contact 310 can be accurately detected.

[0058] It should be noted that the number of the probe group and the contact piece includes at least two, such as two, three or four, or other numbers, which are not specifically limited here.

[0059] Furthermore, the connection states of the moving contact 310 and the static contact 210 include a first state and a second state.

[0060] Specifically, please refer to Figure 2 , the base 320 drives the moving contact 310 to contact a set of opposite static contacts 210 and present the first state of the connection of this circuit.

[0061] In the first state, the first probe group 421 contacts the first contact piece 411 and emits a signal indicating the trigger closure in the first state; while the second probe group 422 is spaced from the second contact piece 412, so it cannot emit a signal indicating the trigger closure in the second state. Thus, through the touch between the first probe group 421 and the first contact piece 411 and the spacing between the second probe group 422 and the second contact piece 412, the states of the moving contact 310 and the static contact 210 are jointly detected and judged, with high detection accuracy, and it can effectively detect that it is in the first state.

[0062] Please continue to refer to Figure 3 , the base 320 can also drive the moving contact 310 to contact another set of static contacts 210 and present the second state of the connection of this circuit.

[0063] Specifically, in the second state, the first probe group 421 is spaced from the first contact piece 411, so a signal for triggering and closing in the first state cannot be emitted. Instead, the second probe group 422 touches the second contact piece 412 and emits a signal indicating the triggering and closing in the second state. In this way, the states of the moving contact 310 and the static contact 210 are jointly detected and judged through the spacing between the first probe group 421 and the first contact piece 411 and the touching between the second probe group 422 and the second contact piece 412, with high detection accuracy and the ability to effectively detect that it is in the second state.

[0064] Further, the first probe group 421, the mounting portion 110, and the second probe group 422 are located on the same straight line. In short, the first probe group 421 and the second probe group 422 are arranged in a straight line with respect to the mounting portion 110.

[0065] The included angle formed by the connection line between the first contact piece 411 and the mounting portion 110 and the connection line between the second contact piece 412 and the mounting portion 110 is a right angle or an acute angle. In practical applications, the included angle is usually a right angle. In short, the first contact piece 411 and the second contact piece 412 are arranged in a cross shape.

[0066] Of course, in other embodiments, the included angle formed by the connection line between the first probe group 421 and the mounting portion 110 and the connection line between the second probe group 422 and the mounting portion 110 is a right angle or an acute angle. In practical applications, the included angle is usually a right angle. Therefore, the first probe group 421 and the second probe group 422 can also be arranged in a cross shape. Similarly, the first contact piece 411, the mounting portion 110, and the second contact piece 412 are located on the same straight line. In short, the first contact piece 411 and the second contact piece 412 can also be arranged in a straight line with respect to the mounting portion 110.

[0067] Further, the mounting cover 100 is convexly provided with ribs (not shown in the figure). The ribs enclose a mounting chamber. The auxiliary static contact member 420 is disposed in the mounting chamber, and the height of the ribs is less than the length of the first touch member.

[0068] In this embodiment, the number of mounting chambers is two, and the two mounting chambers are disposed opposite to each other. The first probe group 421 is disposed in one of the mounting chambers, the second probe group 422 is disposed in the other mounting chamber, and the ends of the first probe group 421 and the second probe group 422 both extend out of the mounting chamber, so as to facilitate the first contact piece 411 and the second contact piece 412 to contact the first probe group 421 and the second probe group 422 under the drive of the base 320.

[0069] In this embodiment, the mounting chamber is formed by the ribs convexly provided on the bottom wall of the mounting cover 100 and the side wall of the mounting cover 100. By making the height of the ribs less than the lengths of the first probe group 421 and the second probe group 422, it is convenient for them to extend out of the mounting chamber, so as to facilitate contact with the first contact piece 411 and the second contact piece 412.

[0070] Further, please refer to Figure 4 and Figure 5 , the moving contact assembly 300 further includes a fixing member 330 disposed on the base 320 for fixing the moving contact 310, and the auxiliary contact assembly 400 is disposed on the fixing member 330, with stable and firm structure.

[0071] It should be noted that the moving contact assembly 300 further includes a U-shaped mounting bracket 340. The moving contact 310 is mounted between the base 320 and the mounting bracket 340. The fixing member 330 is disposed outside the mounting bracket 340 for mounting the auxiliary contact assembly 400 on the moving contact assembly 300, so as to enable the auxiliary contact assembly 400 to rotate synchronously with the moving contact 310.

[0072] Further, the fixing member 330 includes a connected support portion 331 and two extending portions 332. The two extending portions 332 are bent and arranged at an angle. The first contact piece 411 and the second contact piece 412 are respectively disposed at the ends of the two extending portions 332.

[0073] Second Embodiment

[0074] Please refer to Figure 6 and Figure 7 , the present invention also provides an auxiliary contact structure. For a brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in the first embodiment.

[0075] First of all, it should be noted that different from the first embodiment, the auxiliary static contact 420 is only composed of one third probe group 423, and the third probe group 423 has exactly the same structure as the first probe group 421 and the second probe group 422.

[0076] In this embodiment, the third probe group 423 is disposed on the circumferential side of the mounting portion 110, and the third probe group 423 selectively contacts the first contact piece 411 or the second contact piece 412.

[0077] As Figure 5 shown, when the moving contact 310 contacts one group of static contacts 210 to form a first circuit state, the first contact piece 411 in the auxiliary moving contact 410 contacts the third probe group 423 to detect the working state of the first circuit; as Figure 6 shown, when the moving contact 310 contacts the other group of static contacts 210 to form a second circuit state, the second contact piece 412 in the auxiliary moving contact 410 contacts the third probe group 423 to detect the working state of the second circuit.

[0078] Further, the present application also provides a relay, which can be used in power distribution equipment, etc., and is equipped with the auxiliary contact structure 10 in the foregoing embodiment.

[0079] Specifically, the power distribution equipment can be configured as at least one of the following: distribution box, cable, distribution cabinet, motor, switch socket, lamp, air conditioner, electric water heater, electric meter, camera, telephone, computer, etc. These power distribution equipment can utilize the relay-related structures of this application to achieve intelligent management, but it is not limited to the power distribution equipment for the above intelligent management, and can also be used in the non-intelligent power distribution equipment in traditional industries.

[0080] Optionally, it can be specifically used for: fire protection power: first-level such as fire control room, fire pump, smoke prevention and exhaust facilities, fire elevator and its drainage pump, fire emergency lighting, etc.; aisle lighting, duty lighting, guard lighting, obstacle marker lamp; rail transit; security system power supply; electronic information machine room power supply; passenger elevator power; sewage pump; variable frequency speed regulation constant pressure water supply domestic pump (otherwise it is a secondary load); main office, meeting room, general duty room, archive room.

[0081] In summary, the embodiment of the present invention provides an auxiliary contact structure 10 and a relay. By arranging the auxiliary contact assembly 400 on the moving contact assembly 300, the auxiliary contact assembly 400 can follow the moving contact assembly 300 to move synchronously, so that when the moving contact assembly 300 contacts the static contact assembly 200 to form a circuit, the working state of the moving contact assembly 300 can be detected through the auxiliary contact assembly 400, with high detection accuracy and being applicable to various relays.

[0082] As described above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An auxiliary contact structure, characterized in that, it includes a mounting cover (100), a static contact assembly (200), a moving contact assembly (300), and an auxiliary contact assembly (400); the static contact assembly (200) is arranged in the mounting cover (100); the moving contact assembly (300) is movably arranged in the mounting cover (100) and can contact the static contact assembly (200) to form multiple groups of circuits; the auxiliary contact assembly (400) includes an auxiliary moving contact member (410) and an auxiliary static contact member (420), the auxiliary static contact member (420) is arranged in the mounting cover (100), the auxiliary moving contact member (410) is arranged on the moving contact assembly (300) and is used to move synchronously with the moving contact assembly (300), and the auxiliary contact assembly (400) is used to detect the working state of the multiple groups of circuits.

2. The auxiliary contact structure according to claim 1, characterized in that, the moving contact assembly (300) includes a moving contact (310) and a base (320), the base (320) is rotatably arranged on the mounting part (110) of the mounting cover (100), and the moving contact (310) is arranged on the base (320); the auxiliary static contact member (420) includes a first probe group (421) and a second probe group (422), and both the first probe group (421) and the second probe group (422) are arranged on the circumferential side of the mounting part (110); the auxiliary moving contact member (410) includes a first contact piece (411) and a second contact piece (412); the first contact piece (411) is used to contact the first probe group (421), and the second contact piece (412) is used to contact the second probe group (422).

3. The auxiliary contact structure according to claim 2, characterized in that, the static contact assembly (200) includes at least two groups of static contacts (210), and the moving contact assembly (300) includes one moving contact (310); the base (320) is used to drive the moving contact (310) to contact any one group of static contacts (210) and be in a first state, or to drive the moving contact (310) to contact another group of static contacts (210) and be in a second state; in the first state, the first probe group (421) contacts the first contact piece (411), and the second probe group (422) is spaced from the second contact piece (412); in the second state, the first probe group (421) is spaced from the first contact piece (411), and the second probe group (422) touches the second contact piece (412).

4. The auxiliary contact structure according to claim 2, characterized in that, the first probe group (421), the mounting part (110), and the second probe group (422) are located on the same straight line; the included angle between the connection line of the first contact piece (411) and the mounting part (110) and the connection line of the second contact piece (412) and the mounting part (110) is a right angle or an acute angle.

5. The auxiliary contact structure according to claim 2, characterized in that the included angle between the connection line of the first probe group (421) and the mounting portion (110) and the connection line of the second probe group (422) and the mounting portion (110) is a right angle or an acute angle; the first contact piece (411), the mounting portion (110), and the second contact piece (412) are located on the same straight line.

6. The auxiliary contact structure according to claim 2, characterized in that the moving contact assembly (300) further includes a fixing member (330), the fixing member (330) is disposed on the base (320), and both the first contact piece (411) and the second contact piece (412) are disposed on the fixing member (330).

7. The auxiliary contact structure according to claim 6, characterized in that the fixing member (330) includes a supporting portion (331) and two extending portions (332) disposed at an included angle, and the auxiliary contact assembly (400) is disposed at the end of the extending portion (332).

8. The auxiliary contact structure according to claim 1, characterized in that the moving contact assembly (300) includes a moving contact (310) and a base (320), the base (320) is rotatably disposed on the mounting portion (110) of the mounting cover (100), and the moving contact (310) is disposed on the base (320); the auxiliary moving contact member (410) includes a first contact piece (411) and a second contact piece (412); the auxiliary static contact member (420) includes a third probe group (423), the third probe group (423) is disposed on the circumferential side of the mounting portion (110), and the third probe group (423) selectively contacts the first contact piece (411) or the second contact piece (412).

9. The auxiliary contact structure according to claim 1, characterized in that the static contact assembly (200) includes at least two groups of static contacts (210), the moving contact assembly (300) includes a plurality of moving contacts (310), and each moving contact (310) is correspondingly disposed with at least two groups of static contacts (210).

10. A relay, characterized in that it includes the auxiliary contact structure according to any one of claims 1-9.

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