Auxiliary contact part and relay

Abstract

The invention discloses an auxiliary contact part and a relay, the auxiliary contact part comprises an auxiliary movable spring and an auxiliary static assembly, the auxiliary movable spring comprises a reed and an auxiliary movable contact, and the auxiliary movable contact is connected to the reed; the auxiliary static assembly comprises a leading-out pin and an auxiliary static contact, the tail part of the leading-out pin is provided with a supporting section, and the auxiliary static contact is fixedly connected to the tail end of the supporting section; the auxiliary static contact is used for being in contact with or separated from the auxiliary movable contact, and the contact and separation direction of the auxiliary movable contact and the auxiliary static contact is parallel to the axis of the supporting section. A plane perpendicular to the axis of the supporting section is defined; the area of the orthographic projection of the auxiliary static contact on the plane is larger than that of the orthographic projection of the supporting section on the plane.

Description

Technical Field

[0001] The present application relates to the technical field of electronic control devices, and in particular to an auxiliary contact part and a relay. Background Art

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

[0003] A high voltage DC relay is a type of relay. It includes a main contact part and an auxiliary contact part. The auxiliary contact part includes an auxiliary moving spring and an auxiliary static spring. The opening / closing state of the contacts of the main contact part is monitored by the closing or disconnection of the contacts between the auxiliary moving spring and the auxiliary static spring.

[0004] However, in the prior art, due to the small load current of the auxiliary contact part, a tiny foreign object between the auxiliary contacts or a slight poor contact between the contacts can easily cause the auxiliary contact part to be non-conductive. In addition, under the development trend of miniaturization of relay products, the prior art has not yet proposed a solution that can solve the poor contact of the auxiliary contacts and take into account the miniaturization of the product. Summary of the invention

[0005] The embodiments of the present application provide an auxiliary contact part and a relay to solve the problem of poor contact of auxiliary contacts in the prior art.

[0006] The auxiliary contact part of the embodiment of the present application includes:

[0007] an auxiliary movable spring, comprising a reed and an auxiliary movable contact, wherein the auxiliary movable contact is connected to the reed; and

[0008] An auxiliary static component, comprising a lead pin and an auxiliary static contact, wherein the tail of the lead pin has a support section, and the auxiliary static contact is fixedly connected to the end of the support section; the auxiliary static contact has a plurality of auxiliary static contacts, and the auxiliary static contact is used to contact or separate with the auxiliary moving contact, and the contact and separation direction of the auxiliary moving contact and the auxiliary static contact is parallel to the axis of the support section;

[0009] Wherein, a plane perpendicular to the axis of the supporting section is defined; the area of ​​the orthographic projection of the auxiliary static contact on the plane is larger than the area of ​​the orthographic projection of the supporting section on the plane.

[0010] According to some embodiments of the present application, the orthographic projection of the support segment on the plane falls within the orthographic projection of the auxiliary static contact on the plane; or,

[0011] The orthographic projection of the auxiliary static contact on the plane surrounds the periphery of the orthographic projection of the supporting section on the plane.

[0012] According to some embodiments of the present application, the auxiliary static contact has a plurality of auxiliary static contact points, and each of the auxiliary static contact points is used to contact or separate from the auxiliary moving contact point.

[0013] According to some embodiments of the present application, the auxiliary static contact also includes a connecting portion and a contact cap, the connecting portion is fixedly connected to the outer peripheral surface of the supporting segment, the contact cap is integrally connected to one end of the connecting portion close to the auxiliary moving contact, the contact cap has a top surface facing the auxiliary moving contact, and each of the auxiliary static contacts is protruding from the top surface.

[0014] According to some embodiments of the present application, the connecting portion is a hollow cylindrical structure, the connecting portion is sleeved on the outer circumference of the supporting segment, and the connecting portion is riveted to the supporting segment;

[0015] The contact cap is a ring-shaped structure, and the contact cap is connected to the outer peripheral surface of the connecting portion in a surrounding manner.

[0016] According to some embodiments of the present application, the support segment has an end surface facing the auxiliary moving contact, the end surface is connected to the outer peripheral surface of the support segment, and the end surface is flush with the top surface.

[0017] According to some embodiments of the present application, the contact cap is a circular ring structure, and the plurality of auxiliary static contacts are arranged along the circumference of the contact cap.

[0018] According to some embodiments of the present application, the support segment has an end surface facing the auxiliary moving contact, and the end surface is connected to the outer peripheral surface of the support segment;

[0019] The contact cap covers the end surface, and the contact cap has a bottom surface arranged along the axis of the support section and facing away from the top surface, and the bottom surface abuts against the end surface.

[0020] According to some embodiments of the present application, the connecting portion is a plate-like structure, and the connecting portion is welded to the outer peripheral surface of the supporting segment.

[0021] According to some embodiments of the present application, the axis of the supporting segment is perpendicular to the bottom surface.

[0022] According to some embodiments of the present application, the lead pin and the auxiliary static contact are an integral structure or a separate structure.

[0023] According to some embodiments of the present application, a plurality of the auxiliary moving contacts are provided at one end of the reed, and the plurality of the auxiliary moving contacts are used to respectively contact or separate with the plurality of the auxiliary static contacts of one auxiliary static contact.

[0024] According to some embodiments of the present application, a plurality of arms are provided at one end of the spring sheet, and each of the arms is provided with an auxiliary moving contact.

[0025] According to some embodiments of the present application, each of the auxiliary static contacts has an outer arc surface in contact with the auxiliary moving contact.

[0026] The relay according to the embodiment of the present application comprises the auxiliary contact part described in any one of the above items.

[0027] According to some embodiments of the present application, the relay further includes a yoke plate, the yoke plate having a first mounting hole; the first mounting hole penetrates the yoke plate along the thickness direction of the yoke plate;

[0028] The auxiliary static component of the auxiliary contact part also includes an insulating member, which surrounds the outer peripheral surface of the support section of the lead-out pin. The support section is penetrated through the first mounting hole and is insulated and connected to the yoke iron plate through the insulating member.

[0029] According to some embodiments of the present application, the axis of the support segment is perpendicular to the yoke iron plate.

[0030] According to some embodiments of the present application, the relay further includes a yoke plate and a push rod, the yoke plate having a first through hole, the first through hole penetrating the yoke plate along a thickness direction of the yoke plate;

[0031] The push rod is movably arranged in the first through hole, and the auxiliary dynamic spring of the auxiliary contact part is integrally formed with the push rod.

[0032] One embodiment of the above application has at least the following advantages or beneficial effects:

[0033] In the auxiliary contact part of the embodiment of the present application, the auxiliary static contact is fixedly connected to the end of the support section, and the contact and separation direction between the auxiliary moving contact of the auxiliary moving spring and the auxiliary static contact is parallel to the axis of the support section. The support section is equivalent to contacting and supporting the auxiliary static contact, which improves the stability of the auxiliary static contact, thereby ensuring the contact accuracy between the auxiliary moving spring and the auxiliary static contact. In addition, the area of ​​the projection of the auxiliary static contact on the plane is larger than the area of ​​the orthographic projection of the support section on the plane. The auxiliary static contact with a larger area can greatly reduce the risk of non-conduction. Therefore, under the joint effect of the auxiliary static contact being fixedly connected to the end of the support section and the auxiliary static contact having a larger orthographic projection area, both product miniaturization and contact performance are taken into account, avoiding the non-conduction of the circuit of the auxiliary contact part due to poor contact between the auxiliary moving spring and the auxiliary static contact, and improving the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of a relay at a viewing angle according to an exemplary embodiment.

[0035] Figure 2 is a schematic structural diagram of a relay from another perspective according to an exemplary embodiment.

[0036] Figure 3 yes Figure 1 Section view along the AA cutting line.

[0037] Figure 4 yes Figure 2 Sectional view along the BB cutting line.

[0038] Figure 5 yes Figure 1 The schematic diagram of the relay shown omits the housing, ceramic cover, frame and magnetic circuit.

[0039] Figure 6 1 is a schematic top view of a yoke plate fixedly connected to two auxiliary static components according to the first exemplary embodiment.

[0040] Figure 7 is a schematic side view showing a yoke plate fixedly connected to two auxiliary static components according to the first exemplary embodiment.

[0041] Figure 8 yes Figure 6 Sectional view along CC cutting line.

[0042] Fig. 9 yes Figure 3 A local enlarged view of point X1 in the middle.

[0043] Fig.10It is a schematic diagram of the auxiliary moving contact in the prior art when the auxiliary moving contact contacts the auxiliary static contact and the auxiliary moving contact is offset.

[0044] Fig.11 and Fig.12 It is a schematic diagram showing two auxiliary static contacts having outer arc surfaces and an auxiliary moving contact being offset according to an exemplary embodiment.

[0045] Fig.13 yes Figure 4 A local enlarged view of the X2 point in the middle.

[0046] Fig.14 is a schematic diagram showing an auxiliary dynamic spring and two auxiliary static components according to an exemplary embodiment.

[0047] Fig.15 1 is a schematic top view of a yoke plate fixedly connected to two auxiliary static components according to a second exemplary embodiment.

[0048] Fig.16 is a schematic diagram showing a yoke plate and two auxiliary static components fixedly connected according to a third exemplary embodiment.

[0049] The reference numerals are described as follows:

[0050] 11. Ceramic cover; 111. Socket; 12. Frame; 13. Yoke iron plate; 131. First through hole; 132. Plate body; 132a. First surface; 132b. Second surface; 1321. Second mounting hole; 1322. Sinking groove; 133. Adapter ring; 1331. First mounting hole; 1332. Adapter column; 1333. Adapter flange; 14. Housing;

[0051] 20. Main contact part; 21. Static contact lead-out terminal; 22. Active spring;

[0052] 40. Push rod assembly; 41. Push rod; 42. Contact support; 421. Top wall; 422. Side wall; 43. Spring seat; 44. Elastic member;

[0053] 50, magnetic circuit part; 51, moving iron core; 52, stationary iron core; 521, second perforation; 53, reset member; 54, metal cover; 55, coil assembly; 551, enameled wire; 552, coil frame;

[0054] 60, auxiliary contact part; 61, auxiliary static assembly; 611, insulating member; 612, lead pin; 6121, support section; 6121a, end surface; 6122, horizontal section; 6123, vertical section; 6124, lead section; 613, auxiliary static contact; 6131, connecting part; 6132, contact cap; 6132a, top surface; 6132b, bottom surface; 6133, auxiliary static contact; 6133a, outer arc surface; 62, auxiliary moving spring; 621, support arm; 622, auxiliary moving contact; 623, spring leaf;

[0055] D1, first direction; D2, second direction; D3, third direction. DETAILED DESCRIPTION

[0056] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0057] like Figures 1 to 5 As shown, the relay of the embodiment of the present application includes a yoke plate 13 , a ceramic cover 11 , a main contact portion 20 , a magnetic circuit portion 50 , a push rod assembly 40 and a housing 14 .

[0058] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components that are inherent to these processes, methods, products, or devices.

[0059] The yoke plate 13 is provided with a first through hole 131 which passes through two side surfaces in the thickness direction of the yoke plate 13. The ceramic cover 11 is disposed on one side surface of the yoke plate 13 and covers the first through hole 131 of the yoke plate 13.

[0060] As an example, the ceramic cover 11 can be connected to one side surface of the yoke plate 13 through a frame sheet 12. The frame sheet 12 can be a metal piece with an annular structure, and the metal material can be an iron-nickel alloy, but is not limited to this. One end of the frame sheet 12 is connected to the opening edge of the ceramic cover 11, for example, by laser welding, brazing, resistance welding, gluing, etc. The other end of the frame sheet 12 is connected to the yoke plate 13, and the connection method can also be laser welding, brazing, resistance welding, gluing, etc. It can be understood that a frame sheet 12 is provided between the ceramic cover 11 and the yoke plate 13, which can facilitate the connection between the ceramic cover 11 and the yoke plate 13.

[0061] The main contact part 20 includes an active spring 22 and a pair of static contact lead-out terminals 21. Two jacks 111 are provided on the top of the ceramic cover 11. The two static contact lead-out terminals 21 are respectively inserted into the two jacks 111, and a portion of each static contact lead-out terminal 21 extends into the ceramic cover 11. The bottom of each static contact lead-out terminal 21 serves as a static contact. The active spring 22 is movably arranged in the ceramic cover 11, and the two ends of the active spring 22 along the first direction D1 serve as moving contacts, which are respectively used to contact or separate from the bottom of the two static contact lead-out terminals 21 to achieve the closing or disconnection of the main contact of the main contact part 20. Among them, the first direction D1 is the arrangement direction of the pair of static contact lead-out terminals 21. The movement direction of the active spring 22 is defined as the second direction D2, and the direction perpendicular to the first direction D1 and the second direction D2 is defined as the third direction D3.

[0062] The push rod assembly 40 is movably inserted into the first through hole 131 of the yoke iron plate 13. The active spring 22 of the main contact part 20 is arranged on the push rod assembly 40 through the elastic member 44. When the push rod assembly 40 reciprocates, it can drive the active spring 22 to move, thereby realizing the closing or opening of the main contact of the main contact part 20. The elastic member 44 is used to provide contact pressure to the active spring 22.

[0063] In one embodiment, the elastic member 44 may be a compression spring, but is not limited thereto.

[0064] The push rod assembly 40 may include a push rod 41 and a contact bracket 42. The push rod 41 is movably disposed in the first through hole 131 along the second direction D2, and the contact bracket 42 is connected to one axial end of the push rod 41. The active spring 22 is installed in the space surrounded by the contact bracket 42 through the elastic member 44.

[0065] In the embodiment of the present application, one axial end of the push rod 41 is connected to a spring seat 43, and the contact support 42 is connected to the spring seat 43. One end of the elastic member 44 abuts against the spring seat 43, and the other end of the elastic member 44 abuts against the active spring 22.

[0066] like Figure 5As shown, further, the contact bracket 42 may include a top wall 421 and two side walls 422, the top wall 421 is located on the side of the active spring 22 facing the static contact lead-out end 21, one end of the two side walls 422 are respectively connected to the two sides of the top wall 421 along the third direction D3, and the other ends of the two side walls 422 are respectively connected to the two sides of the spring seat 43 along the third direction D3.

[0067] Of course, in other embodiments, the push rod assembly 40 may also adopt other structures, which are not listed here one by one.

[0068] like Figure 3 As shown, the magnetic circuit part 50 includes a moving iron core 51, a static iron core 52, a reset member 53 and a metal cover 54. The metal cover 54 is connected to the side surface of the yoke iron plate 13 facing away from the ceramic cover 11, and the metal cover 54 is covered in the first through hole 131 of the yoke iron plate 13. The static iron core 52 is arranged in the metal cover 54, and is fixedly arranged on the side of the yoke iron plate 13 facing away from the ceramic cover 11. The static iron core 52 is provided with a second through hole 521, and the second through hole 521 corresponds to the position of the first through hole 131. The push rod 41 of the push rod assembly 40 is movably penetrated in the first through hole 131 and the second through hole 521. The moving iron core 51 is movably arranged in the metal cover 54, and is connected to one end of the push rod 41 away from the active spring 22, for example, by screwing. The reset member 53 is arranged between the static iron core 52 and the moving iron core 51, and is used to reset the moving iron core 51.

[0069] In one embodiment, the reset member 53 may be a compression spring which is sleeved on the outer periphery of the push rod 41 , and one end of the compression spring abuts against the static iron core 52 , and the other end of the compression spring abuts against the moving iron core 51 , for providing elastic force to move the moving iron core 51 away from the static iron core 52 .

[0070] It should be noted that the magnetic circuit part 50 also includes a coil assembly 55, and the coil assembly 55 includes an enameled wire 551 and a coil frame 552. The coil frame 552 surrounds the outer periphery of the metal cover 54, and the enameled wire 551 surrounds the outer periphery of the coil frame 552. When the enameled wire 551 is energized, the moving iron core 51 is acted upon by the magnetic force and drives the push rod assembly 40 to move upward, and then the push rod assembly 40 drives the active spring 22 to contact the static contact lead-out terminal 21, so that the main contact is closed. When the enameled wire 551 is de-energized, the moving iron core 51 is acted upon by the reset member 53 and moves downward, and then drives the active spring 22 to separate from the static contact lead-out terminal 21, so that the main contact is disconnected.

[0071] like Figure 3As shown, the relay of the embodiment of the present application further includes an auxiliary contact portion 60, and the auxiliary contact portion 60 includes an auxiliary static component 61 and an auxiliary dynamic spring 62, and the auxiliary dynamic spring 62 is used to contact or separate with the auxiliary static component 61. The closing or opening of the auxiliary contact between the auxiliary dynamic spring 62 of the auxiliary contact portion 60 and the auxiliary static component 61 can be used to monitor the closing / opening state of the main contact between the active spring 22 and the static contact lead-out terminal 21.

[0072] The auxiliary dynamic spring 62 is connected to the push rod 41 and moves with the push rod 41, and the auxiliary static component 61 is fixedly connected to the yoke iron plate 13. When the push rod 41 reciprocates along the second direction D2, the push rod 41 can drive the auxiliary dynamic spring 62 to move, thereby realizing the contact or separation between the auxiliary dynamic spring 62 and the auxiliary static component 61.

[0073] It is understandable that the auxiliary contact portion 60 can be a normally open contact or a normally closed contact. Specifically, the normally open contact means that when the enameled wire 551 is powered off, the auxiliary spring 62 and the auxiliary static component 61 are in a disconnected state; when the enameled wire 551 is powered on, the auxiliary spring 62 and the auxiliary static component 61 are closed. The normally closed contact means that when the enameled wire 551 is powered off, the auxiliary spring 62 and the auxiliary static component 61 are in a closed state; when the enameled wire 551 is powered on, the auxiliary spring 62 and the auxiliary static component 61 are disconnected. Specifically, the normally open or normally closed setting can be adjusted by changing the relative height, spacing, etc. between the support section 6121 and the auxiliary spring 62.

[0074] In one embodiment, the auxiliary dynamic spring 62 is integrally formed with the push rod 41. Further, the auxiliary dynamic spring 62 and the push rod 41 can be integrally formed by injection molding. It is understandable that since the auxiliary dynamic spring 62 and the push rod 41 are integrally formed, the dimension chain between the auxiliary dynamic spring 62 and the push rod 41 is reduced, the dimensional accuracy is easier to control, and the movement consistency of the main contact of the main contact part 20 and the auxiliary contact of the auxiliary contact part 60 is ensured.

[0075] like Figure 3 , Figures 6 to 9 As shown, the yoke plate 13 has a first mounting hole 1331, and the first mounting hole 1331 penetrates the yoke plate 13 along the thickness direction of the yoke plate 13 (i.e., the second direction D2). The auxiliary static component 61 includes an insulating member 611, a lead pin 612, and an auxiliary static contact 613. The insulating member 611 surrounds the outer peripheral surface of the lead pin 612, and the lead pin 612 is penetrated through the first mounting hole 1331 and is insulated and connected to the yoke plate 13 through the insulating member 611. The auxiliary static contact 613 is connected to one end of the lead pin 612 extending out of the surface of one side of the yoke plate 13 in the thickness direction. The auxiliary movable spring 62 and the auxiliary static contact 613 are located on the same side of the yoke plate 13, and the auxiliary movable spring 62 is used to contact or separate with the auxiliary static contact 613.

[0076] The lead pin 612 is made of a first material, and the auxiliary static contact 613 is made of a second material. The first material and the second material may be the same or different.

[0077] In the embodiment of the present application, the first material and the second material are different, and the auxiliary static component 61 includes an insulating member 611, a lead pin 612 made of the first material, and an auxiliary static contact 613 made of the second material. The lead pin 612 is insulated and connected to the yoke iron plate 13 through the insulating member 611, and the auxiliary static contact 613 is connected to the lead pin 612 for contacting or separating with the auxiliary dynamic spring 62. The lead pin 612 can select a first material with a coefficient of expansion close to that of the material of the insulating member 611, and the second material of the auxiliary static contact 613 can select a second material with better conductivity. In this way, the expansion coefficients of the first material and the material of the insulating member 611 are close, ensuring the connection reliability between the lead pin 612 and the insulating member 611, and the second material has better conductivity, ensuring the conductive contact performance of the contact between the auxiliary static contact 613 and the auxiliary dynamic spring 62, taking into account the issues of contact reliability and connection reliability.

[0078] It is understandable that the auxiliary static contact 613 and the lead pin 612 can be an integral structure or a separate structure.

[0079] In one embodiment, when the auxiliary static contact 613 and the lead pin 612 are separate structures, the auxiliary static contact 613 and the lead pin 612 can be connected by welding, riveting, etc., and this application does not specifically limit this.

[0080] It should be noted that the auxiliary static contact 613 and the lead pin 612 are designed as a split structure, which makes the assembly connection between the auxiliary static contact 613 and the lead pin 612 more convenient and efficient.

[0081] In one embodiment, the insulating member 611 is made of a third material, and the third material of the insulating member 611 has the same expansion coefficient as the first material of the lead pin 612 ; the conductivity of the second material is better than that of the first material.

[0082] It can be understood that the same expansion coefficient includes absolutely the same expansion coefficient and approximately the same expansion coefficient. Although the expansion coefficients of the third material and the first material are not exactly the same, the difference in their expansion coefficients is within a certain range (for example, the absolute value of the difference in their expansion coefficients is not more than 10% of the ratio of the expansion coefficient of the first material), and does not affect the connection firmness of the insulating member 611 and the lead pin 612, and should also be within the protection scope of the embodiment of the present application.

[0083] Further, the first material is Kovar 4J29, the second material is oxygen-free copper, and the third material is glass, but not limited thereto. For example, the first material may also be 4J33, 4J50 or other iron-nickel alloys or iron-cobalt-nickel alloys.

[0084] It can be understood that, in one embodiment, the insulating member 611 can be in direct contact with the outer peripheral surface of the lead pin 612 ; in another embodiment, other components can be disposed between the insulating member 611 and the lead pin 612 .

[0085] In addition, in the embodiment of the present application, the shape of the first mounting hole 1331 can be circular, elliptical, rectangular or other suitable shapes, and the outer periphery of the insulating member 611 is adapted to the shape of the first mounting hole 1331 .

[0086] like Figure 3 , Figure 6 and Figure 7 As shown, in the embodiment of the present application, the auxiliary contact portion 60 includes an auxiliary dynamic spring 62 and two auxiliary static components 61 , and each auxiliary static component 61 includes an insulating member 611 , a lead pin 612 and an auxiliary static contact 613 .

[0087] The two auxiliary static components 61 are arranged along the first direction D1. The yoke iron plate 13 is provided with two first mounting holes 1331 arranged along the first direction D1, and the two auxiliary static components 61 are respectively penetrated through the two first mounting holes 1331, and the two auxiliary static components 61 are fixedly connected to the yoke iron plate 13. The two ends of the auxiliary dynamic spring 62 along the first direction D1 are used to contact or separate with the auxiliary static contacts 613 of the two auxiliary static components 61 respectively.

[0088] It can be understood that the auxiliary contact portion 60 includes an auxiliary spring 62 and two auxiliary static components 61, which can be a normally open contact, a normally closed contact, or a switching contact. The normally open contact and the normally closed contact have been described in detail above and will not be repeated here. For the switching contact, it can be understood that the two auxiliary static components 61 can be arranged along the second direction D2. When the enameled wire 551 is powered off, the auxiliary spring 62 contacts one of the auxiliary static components 61; when the enameled wire 551 is powered on, the auxiliary spring 62 is disconnected from the auxiliary static component 61 and contacts the other auxiliary static component 61.

[0089] like Figure 8 and Fig. 9As shown, the yoke plate 13 includes a plate body 132 and an adapter ring 133. The plate body 132 is provided with a second mounting hole 1321 and a first through hole 131 for the push rod 41 to be movably inserted therein. The adapter ring 133 is arranged in the second mounting hole 1321 and is connected to the plate body 132. The adapter ring 133 has a first mounting hole 1331, and the lead pin 612 is insulated and connected to the adapter ring 133 through an insulating member 611. The plate body 132 and the adapter ring 133 are made of different materials.

[0090] In the embodiment of the present application, the yoke plate 13 includes a plate body 132 and an adapter ring 133. The materials of the plate body 132 and the adapter ring 133 are different. Therefore, the adapter ring 133 can use a material similar to that of the insulating member 611 to ensure that the expansion coefficients of the adapter ring 133 and the insulating member 611 are not too different, thereby ensuring the connection reliability between the adapter ring 133 and the insulating member 611.

[0091] In the embodiment of the present application, the plate body 132 is provided with two second mounting holes 1321, and the first through hole 131 is provided between the two second mounting holes 1321. Further, the first through hole 131 is centrally provided between the two second mounting holes 1321, but not limited thereto.

[0092] The adapter ring 133 and the plate body 132 may be connected by a welding process, such as brazing, but not limited thereto.

[0093] Of course, in other embodiments, the yoke plate 13 may also be an integral piece. When the insulating member 611 is made of a suitable material, the insulating member 611 may be directly connected to the yoke plate 13 .

[0094] Please continue reading Figure 8 and Fig. 9 The plate body 132 has a first surface 132a and a second surface 132b that are arranged opposite to each other along the thickness direction (i.e., the second direction D2), the first surface 132a faces the static contact lead-out terminal 21, and the second surface 132b faces away from the static contact lead-out terminal 21. The auxiliary static contact 613 is connected to one end of the lead-out pin 612 extending out of the first surface 132a. The plate body 132 also has a sinking groove 1322 formed by the second surface 132b being recessed in the direction of the first surface 132a, and the second mounting hole 1321 passes through the bottom surface of the sinking groove 1322. The adapter ring 133 includes an adapter column 1332 and an adapter flange 1333. The adapter flange 1333 is connected to the outer circumference of the adapter column 1332. The adapter column 1332 is passed through the second mounting hole 1321 and has a first mounting hole 1331. The adapter flange 1333 is accommodated in the sinking groove 1322 and is connected to the bottom surface of the sinking groove 1322.

[0095] In the embodiment of the present application, the adapter flange 1333 is accommodated in the sinking groove 1322 and connected to the bottom surface of the sinking groove 1322 , which can improve the connection reliability between the adapter ring 133 and the plate body 132 .

[0096] In another embodiment, the sinking groove 1322 of the plate body 132 may also be formed by being recessed from the first surface 132a toward the second surface 132b.

[0097] Of course, in other embodiments, the plate body 132 may not be provided with the sinking groove 1322 , and the adapter ring 133 is connected to the first surface 132 a or the second surface 132 b .

[0098] like Fig. 9 As shown, the adapter column 1332 is cylindrical, and the adapter flange 1333 is annular; the outer diameter dimension of the adapter column 1332 is L1, the outer diameter dimension of the adapter flange 1333 is L2, and the aperture of the first mounting hole 1331 is L3, wherein L1, L2 and L3 satisfy: (L1-L3) / (L2-L3) can be greater than 1 / 2.

[0099] In the embodiment of the present application, since (L1-L3) / (L2-L3) is greater than 1 / 2, the wall thickness of the adapter column 1332 can be significantly increased, making it less likely to deform, thereby preventing the insulating member 611 from cracking.

[0100] In one embodiment, the insulating member 611 is made of glass material. Furthermore, the lead pin 612, the insulating member 611 and the adapter ring 133 can be connected by a sintering process.

[0101] It can be understood that, in the embodiment of the present application, the assembly sequence of the yoke iron plate 13 and the auxiliary static component 61 can be any one of the following three:

[0102] (1) The lead pin 612, the insulating member 611 and the adapter ring 133 are connected by a sintering process, and then the lead pin 612, the insulating member 611 and the adapter ring 133 are connected to the plate body 132, wherein the adapter ring 133 and the plate body 132 can be connected by a welding process, and finally the auxiliary static contact 613 is connected to the lead pin 612, for example, by welding or riveting;

[0103] (2) The lead pin 612, the insulating member 611 and the adapter ring 133 are connected by a sintering process, and then the adapter ring 133 and the plate body 132 as well as the auxiliary static contact 613 and the lead pin 612 are connected by a welding process;

[0104] (3) The lead pin 612, the insulating member 611 and the adapter ring 133 are connected by a sintering process, and then the auxiliary static contact 613 is connected to the lead pin 612, for example, by welding or riveting, and finally the adapter ring 133 is connected to the plate body 132 by a welding process.

[0105] like Figure 8 , Fig.13 and Fig.14 As shown, the lead pin 612 is a needle-shaped structure (when the auxiliary static contact 613 is annular, the inner wall of the connecting portion 6131 is more closely assembled with the outer peripheral surface of the needle-shaped lead pin 612), and includes a support section 6121 and a horizontal section 6122. The support section 6121 is provided at the tail of the lead pin 612, and the support section 6121 is passed through the first mounting hole 1331, and is insulated and connected to the yoke iron plate 13 through the insulating member 611. The auxiliary static contact 613 is fixedly connected to the end of the support section 6121, that is, the auxiliary static contact 613 is connected to the end of the support section 6121 away from the yoke iron plate 13 (if the auxiliary dynamic spring 62 is directly contacted through the end face 6121a of the lead pin 612, the end face 6121a needs to be polished, which will increase the generation of foreign matter and affect the contact performance and reliability of the auxiliary contact). The auxiliary moving spring 62 includes a spring leaf 623 and an auxiliary moving contact 622, and the auxiliary moving contact 622 is connected to the spring leaf 623. The auxiliary static contact 613 includes a plurality of auxiliary static contacts 6133, each of which is used to contact or separate from the auxiliary moving contact 622, and the contact and separation direction of the auxiliary static contact 6133 and the auxiliary moving contact 622 is parallel to the axis of the support section 6121.

[0106] It can be understood that the lead pin 612 has two ends, wherein the end of the support section 6121 is one of the ends of the lead pin 612 .

[0107] In addition, the contact and separation direction of the auxiliary static contact 6133 and the auxiliary moving contact 622 is parallel to the axis of the support segment 6121. It should be understood that: when there is an angle between the contact and separation direction and the axis of the support segment 6121, as long as the support segment 6121 can play the role of supporting the auxiliary static contact 613, it should be considered to be within the protection scope of the embodiment of the present application.

[0108] In one embodiment, the aforementioned angle may be less than or equal to 15 degrees; further, the angle may be less than or equal to 10 degrees; further, the angle may be less than or equal to 5 degrees.

[0109] The axis of the support section 6121 is perpendicular to the yoke plate 13. The horizontal section 6122 is located on the other side of the thickness direction of the yoke plate 13, one end of the horizontal section 6122 is connected to the other end of the support section 6121 extending out of the other side surface of the yoke plate 13 in the thickness direction, and the axis of the horizontal section 6122 is perpendicular to the yoke plate 13.

[0110] In the embodiment of the present application, the auxiliary static contact 613 is fixedly connected to the end of the support section 6121, and the contact and separation directions of the auxiliary moving contact 622 of the auxiliary moving spring 62 and the auxiliary static contact 6133 of the auxiliary static contact 613 are parallel to the axis of the support section 6121. The support section 6121 is equivalent to directly contacting and supporting the auxiliary static contact 613, thereby improving the stability of the auxiliary static contact 613 and ensuring the contact accuracy between the auxiliary moving spring 62 and the auxiliary static contact 613. In addition, the auxiliary static contact 613 has a plurality of auxiliary static contacts 6133, each of which is used to contact or separate with the auxiliary moving contact 622, and a plurality of auxiliary static contacts 6133 can greatly reduce the risk of non-conduction. Therefore, under the combined effect of the auxiliary static contact 613 being fixedly connected to the end of the support section 6121 and the auxiliary static contact 613 having multiple auxiliary static contact points 6133, the circuit non-conduction of the auxiliary contact part 61 caused by poor contact between the auxiliary moving spring 62 and the auxiliary static contact 613 is avoided, thereby improving the reliability of the product.

[0111] Furthermore, the auxiliary static contact 613 is directly covered on the end of the support section 6121 away from the yoke iron plate 13, and the contact and separation direction between the auxiliary static contact 613 and the auxiliary dynamic spring 62 is parallel to the second direction D2.

[0112] In one embodiment, a plane perpendicular to the axis of the support section 6121 is defined, and the area of ​​the orthographic projection of the auxiliary static contact 613 on the plane is larger than the area of ​​the orthographic projection of the support section 6121 on the plane. In this way, the provision of the auxiliary static contact 613 is equivalent to increasing the area of ​​the auxiliary moving and static contact snapping position. When the auxiliary dynamic spring 62 rotates with the axis of the push rod 41 as the rotating axis or the auxiliary dynamic spring 62 moves, the increase in the snapping position area can still ensure the effective contact of the auxiliary moving and static contacts.

[0113] Further, in one embodiment, the orthographic projection of the support segment 6121 on the plane falls within the orthographic projection of the auxiliary static contact 613 on the plane. In another embodiment, the orthographic projection of the auxiliary static contact 613 on the plane surrounds the periphery of the orthographic projection of the support segment 6121 on the plane.

[0114] The lead-out pin 612 further includes a vertical section 6123 and a lead-out section 6124, wherein one end of the vertical section 6123 is connected to one end of the horizontal section 6122 away from the support section 6121. The axis of the vertical section 6123 is parallel to the axis of the support section 6121. One end of the lead-out section 6124 is connected to one end of the vertical section 6123 away from the horizontal section 6122, and the axis of the lead-out section 6124 is parallel to the axis of the horizontal section 6122.

[0115] like Figure 8 and Fig. 9As shown, the auxiliary static contact 613 is located on the side of the auxiliary moving spring 62 facing the yoke iron plate 13. The auxiliary static contact 613 also includes a connecting portion 6131 and a contact cap 6132. The connecting portion 6131 is fixedly connected to the outer peripheral surface of the support section 6121, and the contact cap 6132 is integrally connected to one end of the connecting portion 6131 close to the auxiliary moving contact 622. The contact cap 6132 has a top surface 6132a facing the auxiliary moving contact 622, and each auxiliary static contact 6133 is convexly arranged on the top surface 6132a.

[0116] The support section 6121 has an end surface 6121a facing the auxiliary moving contact 622, and the end surface 6121a is connected to the outer peripheral surface of the support section 6121. The contact cap 6132 can be a flat plate structure and covers the end surface 6121a. The contact cap 6132 has a bottom surface 6132b arranged along the axis of the support section 6121 and facing away from the top surface 6132a, and the bottom surface 6132b abuts against the end surface 6121a. The area of ​​the top surface 6132a is larger than the area of ​​the end surface 6121a.

[0117] It can be understood that, in the embodiment of the present application, the support section 6121 is supported below the contact cap 6132, and the support section 6121 abuts against the bottom surface 6132b of the contact cap 6132. Under the support of the support section 6121, the stability of the contact cap 6132 is greatly improved, ensuring the contact accuracy between the auxiliary dynamic spring 62 and the auxiliary static contact 613. At the same time, due to the improved stability of the contact cap 6132, the risk of the auxiliary contact part 61 being non-conductive due to poor contact between the auxiliary dynamic spring 62 and the auxiliary static contact 613 is significantly reduced. At the same time, this compact connection design not only ensures the stable and reliable contact performance of the auxiliary contact assembly, but also takes into account the demand for product miniaturization.

[0118] In one embodiment, the axis of the support segment 6121 is perpendicular to the bottom surface 6132b of the contact cap 6132. It is understandable that the axis of the support segment 6121 is perpendicular to the bottom surface 6132b of the contact cap 6132, so that the direction of the force between the auxiliary movable contact 622 and the auxiliary static contact 6133 is also along the axis of the support segment 6121, so that when the auxiliary contacts are in contact, the support segment 6121 is almost not subjected to a force that causes it to bend, thereby ensuring the stability of the support segment 6121, thereby ensuring the stability of the auxiliary static contact 6133, and the effective life of the contact performance is longer.

[0119] In one embodiment, the connecting portion 6131 is a plate-like structure, and the connecting portion 6131 is welded to the outer circumference of the support segment 6121. On the one hand, by connecting the connecting portion 6131 and the support segment 6121 by welding, the connection firmness of the contact cap 6132 and the support segment 6121 can be improved; on the other hand, the connecting portion 6131 is a plate-like structure, and the connecting portion 6131 is welded to the outer circumference of the support segment 6121, so that the position where the support segment 6121 and the contact cap 6132 abut against each other is close to the position where the connecting portion 6131 and the support segment 6121 are welded, which can improve the overall stability of the auxiliary static contact 613 and the support segment 6121.

[0120] As a modified embodiment, the auxiliary static contact 613 can also be used as follows: Fig.13 The structure shown. The connecting portion 6131 is a hollow cylindrical structure, which is sleeved on the outer periphery of the end of the support section 6121 away from the yoke iron plate 13, and the connecting portion 6131 is riveted to the support section 6121; the contact cap 6132 is an annular structure, and is connected to the outer periphery of the connecting portion 6131. ​​The contact cap 6132 is parallel to the yoke iron plate 13; the auxiliary static contact 6133 is convexly arranged on the top surface 6132 of the contact cap 6132 facing the auxiliary moving contact 622 of the auxiliary moving spring 62.

[0121] In the embodiment of the present application, the auxiliary static contact 613 is directly covered on one end of the auxiliary moving contact 622 of the support section 6121 close to the auxiliary moving spring 62, and the auxiliary static contact 6133 is convexly arranged on the side surface of the contact cap 6132 facing the auxiliary moving contact 622 of the auxiliary moving spring 62, so that the contact and separation direction of the auxiliary moving contact 622 and the auxiliary static contact 6133 is roughly parallel to the axis of the support section 6121, so that the lead pin 612 can better support the auxiliary static contact 613, ensure the contact stability of the auxiliary static contact 613 and the auxiliary moving spring 62, and improve the service life of the auxiliary static contact 613. At the same time, the space utilization rate inside the ceramic cover 11 is improved, which is conducive to the miniaturization of the relay.

[0122] Please continue reading Fig.13 In one embodiment, the top surface 6132 of the contact cap 6132 is flush with the end surface 6121 a of the support segment 6121 .

[0123] It is understandable that the auxiliary static contact 6133 and the contact cap 6132 may be connected in one piece or in a separate piece. In addition, in another embodiment, the auxiliary static contact 6133 may not protrude from the contact cap 6132, but may be flush with the surface of the side of the contact cap 6132 facing the auxiliary movable contact 622 of the auxiliary movable spring 62. In other words, the auxiliary static contact 613 is a certain area of ​​the contact cap 6132.

[0124] The auxiliary static contact 6133 has an outer arc surface 6133a in contact with the auxiliary dynamic spring 62. By providing the auxiliary static contact 6133 with the outer arc surface 6133a in contact with the auxiliary dynamic spring 62, on the one hand, the wear of the auxiliary dynamic contact 622 and the auxiliary static contact 6133 when they are in contact can be reduced; on the other hand, the contact area between the auxiliary dynamic contact 622 and the auxiliary static contact 6133 can be increased.

[0125] In detail, Fig.10 As shown, when the outer surfaces of the auxiliary static contact 6133 are all planes, the auxiliary movable contact 622 will contact the sharp corners of the auxiliary static contact 6133 when it deviates, and the sharp corners increase the collision wear between the auxiliary movable contact 622 and the auxiliary static contact 6133. In addition, since the plane is a fracture zone, its roughness is difficult to control, resulting in the contact point between the auxiliary static contact 6133 and the auxiliary movable contact 622 can only be a small-area sharp point, which is not conducive to increasing the contact area of ​​the sharp point.

[0126] In contrast, in this application, Fig.11 and Fig.12 As shown, the auxiliary static contact 6133 has an outer arc surface 6133a, and when the auxiliary moving contact 622 is offset, it is always in tangential contact with the outer arc surface 6133a, so that the wear between the auxiliary moving contact 622 and the auxiliary static contact 6133 is small; in addition, because the outer arc surface 6133a is smoother, its roughness is easier to control, and the contact area of ​​the contact point position between the auxiliary static contact 6133 and the auxiliary moving contact 622 can be increased by reducing the surface roughness of the outer arc surface 6133a.

[0127] like Fig.13 and Fig.14 As shown, one end of the reed 623 has a plurality of auxiliary moving contacts 622 , and the plurality of auxiliary moving contacts 622 are used to contact or separate with the plurality of auxiliary static contacts 6133 respectively.

[0128] In the embodiment of the present application, a plurality of auxiliary moving contacts 622 are respectively provided at both ends of the spring 623 along the first direction D1. The plurality of auxiliary moving contacts 622 at each end of the auxiliary moving spring 62 are used to contact or separate with a plurality of auxiliary static contacts 6133 of an auxiliary static component 61 respectively.

[0129] In a specific embodiment, two auxiliary moving contacts 622 are respectively provided at two ends of the reed 623 along the first direction D1, and each auxiliary static component 61 has two auxiliary static contacts 6133, but the present invention is not limited thereto.

[0130] It is understandable that the auxiliary movable contact 622 and the reed 623 may be connected in one piece or in a separate piece. In addition, in one embodiment, the auxiliary movable contact 622 may protrude from the side surface of the reed 623 facing the auxiliary static contact 6133. In another embodiment, the auxiliary movable contact 622 does not protrude from the side surface of the reed 623 facing the auxiliary static contact 6133, but is formed on a certain part of the reed 623.

[0131] Combine the following Fig.14 The advantages of the auxiliary movable spring 62 of the present embodiment using a plurality of auxiliary movable contacts 622 are described in detail.

[0132] like Fig.14 As shown, for the sake of convenience, the upper left auxiliary moving contact 622 is defined as 1#, the lower left auxiliary moving contact 622 is defined as 2#, the upper right auxiliary moving contact 622 is defined as 3#, and the lower right auxiliary moving contact 622 is defined as 4#. It is understandable that when foreign matter (such as plastic chips, etc.) appears at the contact point between the auxiliary moving spring 62 and the auxiliary static component 61 or the auxiliary moving spring 62 is deformed so that the contact point cannot contact, the circuit of the auxiliary contact part 60 may be non-conductive.

[0133] For the auxiliary contact portion 60 of the embodiment of the present application, it is necessary to satisfy that 1# and 2# are not conductive at the same time or 3# and 4# are not conductive at the same time, which will cause the circuit of the auxiliary contact portion 60 to be non-conductive.

[0134] If only one of 1#, 2#, 3#, and 4# is not conducting, or 1# and 4# are not conducting / 1# and 3# are not conducting / 2# and 4# are not conducting / 2# and 3# are not conducting, the auxiliary contact portion 60 is still conducting as a whole. Therefore, by designing one end of the auxiliary movable spring 62 to have a plurality of auxiliary movable contacts 622, the probability of circuit non-conduction can be reduced.

[0135] Please continue reading Fig.14 , a plurality of arms 621 are provided at one end of the spring 623 along the first direction D1, and the plurality of arms 621 are arranged side by side along the third direction D3, and an auxiliary moving contact 622 is provided on each arm 621. Since the arms 621 and 621 are independent of each other, the plurality of auxiliary moving contacts 622 at one end of the auxiliary moving spring 62 along the first direction D1 are also independent of each other, so that the deviation of one of the auxiliary moving contacts 622 can be avoided to affect the remaining auxiliary moving contacts 622.

[0136] It is understandable that the auxiliary moving contacts 622 provided at both ends of the auxiliary moving spring 62 along the first direction D1 may be the same or different. For example, one end of the auxiliary moving spring 62 along the first direction D1 may be provided with two auxiliary moving contacts 622, and the other end of the auxiliary moving spring 62 along the first direction D1 may be provided with three auxiliary moving contacts 622.

[0137] In addition, among the plurality of arms 621 at both ends of the spring piece 623 along the first direction D1 , some of the arms 621 may be provided with the auxiliary moving contacts 622 , while the other arms 621 may not be provided with the auxiliary moving contacts 622 .

[0138] like Fig.15 As shown, the similarities between the second embodiment and the first embodiment are not repeated here, and the differences between the second embodiment and the first embodiment are as follows:

[0139] The auxiliary static contact 613 includes a plurality of auxiliary static contacts 6133, which are arranged along the circumference of the lead pin 612. The auxiliary dynamic spring 62 has one or more auxiliary dynamic contacts 622 at one end along the first direction D1, and the one or more auxiliary dynamic contacts 622 are used to contact or separate with the plurality of auxiliary static contacts 6133.

[0140] It can be understood that the number of auxiliary moving contacts 622 at one end of the auxiliary moving spring 62 along the first direction D1 can be less than the number of auxiliary static contacts 6133 included in the auxiliary static contact 613. For example, in one embodiment, the number of auxiliary static contacts 6133 included in the auxiliary static contact 613 is eight, and the eight auxiliary static contacts 6133 are arranged at equal intervals along the circumference of the lead-out pin 612. The auxiliary moving spring 62 has two auxiliary moving contacts 622 at one end along the first direction D1. Of course, in other embodiments, the number of auxiliary static contacts 6133 included in the auxiliary static contact 613 can also be three, four, five, six or other numbers.

[0141] In the embodiment of the present application, when the auxiliary dynamic spring 62 rotates slightly around the axis of the push rod 41, since the multiple auxiliary static contacts 6133 are arranged circumferentially along the lead-out pin 612, the rotated auxiliary dynamic spring 62 can still contact at least one of the multiple auxiliary static contacts 6133, thereby avoiding the auxiliary contact part 60 from being unable to conduct due to the rotation of the auxiliary dynamic spring 62, thereby improving the fault tolerance space.

[0142] In one embodiment, the contact cap 6132 is a circular ring structure, and the plurality of auxiliary static contacts 6133 are arranged along the circumference of the contact cap 6132. Furthermore, the plurality of auxiliary static contacts 6133 are arranged along the circumference of the contact cap 6132 at equal intervals.

[0143] like Fig.16 As shown, the similarities between the third embodiment and the first embodiment are not repeated here, and the differences are as follows:

[0144] The auxiliary static contact 613 is located on the side of the auxiliary dynamic spring 62 facing away from the yoke iron plate 13 .

[0145] It is understandable that the various embodiments / implementations provided in the present application can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0146] In the application embodiments, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the application embodiments can be understood according to the specific circumstances.

[0147] In the description of the application embodiments, it should be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application embodiments and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the application embodiments.

[0148] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0149] The above are only preferred embodiments of the application embodiments and are not intended to limit the application embodiments. For those skilled in the art, the application embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application embodiments shall be included in the protection scope of the application embodiments.

Claims

1. An auxiliary contact portion, characterized in that: include: An auxiliary moving spring, comprising a spring leaf and an auxiliary moving contact, wherein the auxiliary moving contact is connected to the spring leaf; as well as An auxiliary static component, comprising a lead pin and an auxiliary static contact, wherein the tail of the lead pin has a support section, and the auxiliary static contact is fixedly connected to the end of the support section; the auxiliary static contact is used to contact or separate with the auxiliary moving contact, and the contact and separation direction of the auxiliary moving contact and the auxiliary static contact is parallel to the axis of the support section; Wherein, a plane perpendicular to the axis of the supporting section is defined; the area of ​​the orthographic projection of the auxiliary static contact on the plane is larger than the area of ​​the orthographic projection of the supporting section on the plane.

2. The auxiliary contact portion according to claim 1, characterized in that The orthographic projection of the support segment on the plane falls within the orthographic projection of the auxiliary static contact on the plane; or, The orthographic projection of the auxiliary static contact on the plane surrounds the periphery of the orthographic projection of the supporting section on the plane.

3. The auxiliary contact portion according to claim 1, characterized in that The auxiliary static contact has a plurality of auxiliary static contact points, and each of the auxiliary static contact points is used for contacting or separating with the auxiliary moving contact point.

4. The auxiliary contact portion according to claim 3, characterized in that The auxiliary static contact also includes a connecting portion and a contact cap, wherein the connecting portion is fixedly connected to the outer peripheral surface of the supporting section, and the contact cap is integrally connected to one end of the connecting portion close to the auxiliary moving contact, and the contact cap has a top surface facing the auxiliary moving contact, and each of the auxiliary static contacts is protruding from the top surface.

5. The auxiliary contact portion according to claim 4, characterized in that The connecting portion is a hollow cylindrical structure, the connecting portion is sleeved on the outer circumference of the supporting section, and the connecting portion is riveted to the supporting section; The contact cap is a ring-shaped structure, and the contact cap is connected to the outer peripheral surface of the connecting portion in a surrounding manner.

6. The auxiliary contact portion according to claim 5, characterized in that The support segment has an end surface facing the auxiliary moving contact, the end surface is connected to the outer peripheral surface of the support segment, and the end surface is flush with the top surface.

7. The auxiliary contact portion according to claim 5, characterized in that The contact cap is a circular ring structure, and the plurality of auxiliary static contacts are arranged along the circumference of the contact cap.

8. The auxiliary contact portion according to claim 4, characterized in that The support segment has an end surface facing the auxiliary moving contact, and the end surface is connected to the outer peripheral surface of the support segment; The contact cap covers the end surface, and the contact cap has a bottom surface arranged along the axis of the support section and facing away from the top surface, and the bottom surface abuts against the end surface.

9. The auxiliary contact portion according to claim 8, characterized in that The connecting portion is a plate-shaped structure, and the connecting portion is welded to the outer peripheral surface of the supporting section.

10. The auxiliary contact portion according to claim 8, characterized in that The axis of the supporting section is perpendicular to the bottom surface.

11. The auxiliary contact portion according to claim 1, characterized in that The lead pin and the auxiliary static contact are an integrated structure or a separate structure.

12. The auxiliary contact portion according to claim 1, characterized in that One end of the reed is provided with a plurality of auxiliary moving contacts, and the plurality of auxiliary moving contacts are used to respectively contact or separate with a plurality of auxiliary static contacts of one auxiliary static contact.

13. The auxiliary contact portion according to claim 12, characterized in that One end of the spring sheet is provided with a plurality of supporting arms, and each supporting arm is provided with an auxiliary moving contact.

14. The auxiliary contact portion according to any one of claims 1 to 13, characterized in that: Each of the auxiliary static contacts has an outer arc surface in contact with the auxiliary moving contact.

15. A relay, characterized in that: Comprising the auxiliary contact portion according to any one of claims 1 to 14.

16. The relay according to claim 15, characterized in that The relay further comprises a yoke plate, wherein the yoke plate has a first mounting hole; the first mounting hole penetrates the yoke plate along the thickness direction of the yoke plate; The auxiliary static component of the auxiliary contact part also includes an insulating member, which surrounds the outer peripheral surface of the support section of the lead-out pin. The support section is penetrated through the first mounting hole and is insulated and connected to the yoke iron plate through the insulating member.

17. The relay according to claim 16, characterized in that The axis of the supporting section is perpendicular to the yoke iron plate.

18. The relay according to claim 15, characterized in that The relay further comprises a yoke plate and a push rod, wherein the yoke plate has a first through hole, and the first through hole penetrates the yoke plate along the thickness direction of the yoke plate; The push rod is movably arranged in the first through hole, and the auxiliary dynamic spring of the auxiliary contact part is integrally formed with the push rod.

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